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Publication numberUS3324254 A
Publication typeGrant
Publication dateJun 6, 1967
Filing dateNov 22, 1965
Priority dateNov 22, 1965
Publication numberUS 3324254 A, US 3324254A, US-A-3324254, US3324254 A, US3324254A
InventorsGamble Howard C, Shaw Henry W
Original AssigneeShaw Henry W
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Microphone holder and the like
US 3324254 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

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June 6, 1967 w, SHAW ET AL MICROPHONE HOLDER AND THE LIKE 2 Sheets-Sheet 2 Filed Nov. 22, 1965 bit/ mm INVENTORS Henry W. Show 8| Howard C. Gambl %WW United States Patent C 3,324,254 MICROPHONE HQLEER AND T 111. LIKE Henry W. Shaw and Howard C. Gamble, Morrilton, Ark; said Gamble assignor to said Henry W. Shaw, doing business as Sound-Craft Systems, Inc., Morrilton, Ark.

Filed Nov. 22, 1365, Ser. No. 513,646 17 Claims. (Cl. 179-153) This invention relates to a microphone holder or the like. More particularly, this invention pertains to such a holder, preferably extensible, in which a microphone or other sensitive instrument carried thereby is relatively insulated against vibration, impact and shock of kinds which attend usage thereof by speakers, lecturers or other persons using a rostrum, lectern, stand or other support to hold such microphone or other sensitive instrument. This application is a continuation-in-part of my copending application, Ser. No. 213,661, filed July 31, 1962, and now abandoned.

Embodiments of this invention provide attractive holders for microphones and other wired instruments because the wiring is concealed in the interior thereof. Further, the part of the holder carrying such microphone or instrument is connected to a shock insulated member to inhibit and deaden vibration, impacts and shocks normally arising in the course of their use of a microphone or such an instrument. Preferably, such holder is extensible to suit persons of different height which is particularly advantageous with microphones, for example, which operate best when close to the mouth of the speaker. Embodiments of this invention may be utilized on a variety of supports including those associated with lecterns, rostrums, lecturing and other devices fitted with a holder for a microphone or the like so as to be ready for quick use when turned on. Further, embodiments of this invention preferably incorporate a jack-and-plug subassembly for quick and convenient connection and disconnection of the instrument held, such as a microphone, useful, for example, in the case of a portable lectern where it often is desirable to disconnect the microphone to better secure it when the lectern is to be closed and carried to some other location.

Other objects, features and advantages of this invention will be apparent from the following description and the accompanying drawings, which are illustrative only, in which FIGURE 1 is a view in side elevation of one embodiment of this invention, when it is not being used, mounted on a portable lectern, with the microphone-adapter removed therefrom for safeguarding as during transport of the device;

FIGURE 2 is a view of the embodiment shown in FIG- URE 1 with the microphone-adapter in place and the embodiment extended nearly to its full height on the support after the lectern cover has been removed;

FIGURE 3 is a partial view in section taken along line IIIIII of FIGURE 2;

FIGURE 4 is a detail view somewhat enlarged of cooperating parts shown in FIGURE 3 in the vicinity of the lower end of the extension tube of the illustrated embodiment;

FIGURE 5 is a detail View somewhat enlarged of cooperating parts shown in FIGURE 3 in the vicinity of the upper end of the extension tube of the illustrated embodiment;

FIGURE 6 is a longitudinally sectioned view of a modified form of the microphone holder shown in the preceding figures, and illustrating another embodiment of the shock absorption means and associated components;

FIGURE 7 is an elevational view of another form of microphone holder and the like arranged in accordance with the invention;

FIGURE 8 is a longitudinally sectional view of the miice crophone holder as arranged in FIGURE 7 and taken generally along reference line VIII-VIII thereof; and

FIGURE 9 is a partial elevational view, partly in section, of a modified form of the microphone adapter shown in FIGURES 2, 3, and 5 and illustrating cooperating looking means formed thereon and on the adjacent end of the microphone holder illustrated in FIGURE 6.

In the drawings, an extensible microphone holder embodiment 11 of this invention is of metal or other suitable material shown mounted on a support surface 11 of a lectern or other device requiring such a holder. As shown, a wholly or partially removable cover 12 is provided such as might be used in case lectern 11 is to be transported from place to place. Holder 10 comprises a hollow swivel coupling 13 having a hollow lower arm 14- with a downwardly projecting externally threaded stem 15 to pass through an opening 16 in support 11. Swivel coupling 13 is a conventional article and provided with a dished upper washer 17 and a lower washer 13 between which support 11 is clamped to mount holder 10 when a nut 19 is tightened. Lower arm 14 because of the use of washers 17 and 13 is able to be rotated about the vertical axis of stem 15 to provide the horizontal component of the desired virtually universal movement of holder 10.

Coupling 13 is also provided with a hollow upper arm 24 which has an elbow joint connection with the top of the lower arm 14 about the horizontal axis of a carriage bolt 21 connecting the two arms at the elbow and compressing suitable rings of slidable friction material 22 in a vertical plane around the perimeter of each elbow part of each arm so that arm 20 will remain in whatever angle and position to which it is moved about the axis of bolt 21 relative to lower arm 14. Conductor wires 23 extending between the upper or outer end of holder 16 and electronic or electrical components below support 11 in the lectern, or elsewhere, remain concealed irrespective of the articulation and/or extension of holder 1%. Terms used herein such as upper and lower, inner and outer, horizontal and vertical, are used in a relative sense rather than as absolute positional terms.

The outer end of upper arm 29 is internally threaded to receive the lower threaded end of a mechanical annular plug or baffle 24 to fasten them together. Annular plug 24 is fastened in and to the lower end of a stand tube 25 by a press fit or otherwise. Plug 24 is provided with a central opening 26 which constricts the opening for the conductors 23 between the interior of swivel 13 and the interior of stand tube 25. A guide collar 27 is provided at the upper end of stand tube 25. Collar 27 has a smooth bore 28 and a larger internally threaded counterbore 29 which engages the upper threaded end of tube 25 to fasten them together. A resilient O-ring 31 is positioned between the upper end of stand tube 25 and a shoulder 31 in collar 27 between the bore and counterbore. O-ring 30 is slidable relative to the smooth exterior of an extension tube 32, the outer end of which is threaded to engage and hold an internally threaded smooth exterior cylindrical ring 33 which may be made of a material like brass for its firm but slidable characteristic relative to the smooth interior surface 34 of stand tube 25. Ring 33 also serves as a stop to prevent extension tube 32 from being pulled upwardly out through collar 27 inasmuch as the diameter of ring 33 is greater than that of bore 23 and O-ring 30 serves as a cushion bumper for ring 33 in the event extension tube 32 is pulled out that far.

The upper end of extension tube 32 is threaded and provided with an acorn cap closure 35 having a central opening 36 therein around and radially spaced from a threaded neck 37 at the top of a shock insulating tube 38. A jam nut 39 looks cap 35 in place. A doughnut cushion 40 of rubber or other elastic or resilient material fits over the base of upper neck portion 37 and is retained in place by cap 35. Cushion centers neck 37 relative to extension tube 32 and keeps it in the center of opening 36 so that mutation, or other normal movements of extension tube 32 caused by touching it, or transmitted to tube 32 through stand tube 25, or otherwise, do not correspondingly move the insulating tube 38 which supports microphone 41 in holder 10. The vibration, impact and shock insulation of tube 38 is completed by mounting of its lower neck portion 42 in a doughnut cushion 43 also of rubber or other elastic material, surrounding the neck between the shoulder provided by the larger normal diameter of tube 38 and the bottom edge 44 of tube 32. The bottom of neck 42 is flared or expanded at 45 to bind cushions 43 with a portion thereof between edge 44 and the expanded portion 45. Consequently, either in the handling of the lectern 11 or of the holder 10, or in the actions or movments of the speaker or user, microphone 41 is protected against shock and vibrations which otherwise might reach the microphone and be amplified, or interfere with the performance thereof.

A connector sleeve 46 is lined with electrical insulation 47 and has an inturned annular flange 48 at the bottom thereof through which threaded neck 37 extends :for engagement by a correspondingly shaped nut 49 in the bottom of sleeve 46. Sleeve 46 is fixed in place between nut 49 and a jam nut 50 on the outside of flange 48 to hold sleeve 46 and members carried thereby at the time being in axial alignment with the axis of insulating tube 38 and correspondingly insulated against shock, impact and/or vibration as described above. The upper end of sleeve 46 is internally threaded to receive a threaded plug base 51 supporting a single stem switchboard type axial plug 52, the outer end 53 of which is adapted to coact with a jack contact spring clip 54 in a microphone adapter 55, current being conveyed from tip 53 through terminal 56 connected to the appropriate one of the wires 23. Tip 53 is electrically insulated in plug 52 from column 57 which usually is grounded and connected to a terminal 58 connected in turn by soldering or otherwise to the other wire conductor 23, the two terminals being separated by an electrical insulating block 59 forming a part of member 51.

Microphone adapter comprises an adapter sleeve 60 which is tapered for attractive flush surface continuation of the lower portion of microphone 41 as shown in FIGURE 2. As shown, the interior of sleeve 60 is lined with a suitable electrical insulation. The lower end of sleeve 60 is closed by a conventional telephone-type jack containing a non-grounded spring clip 54 to make contact with tip 53 when it is inserted through opening 61 in the base 62 thereof, the grounded portion 57 of the plug during connection being in electrical communication with a metallic portion of jack base 62 electrically insulated from clip 54 in the manner known by those having knowledge of such jacks. A grounded spring clip 63 is also provided in sleeve 60 on the grounded side of the circuit, the two spring clips, insulated from one another, being connected respectively to flexible wires 63:! and 54a which lead to appropriate pins in a microphone plug 64 in the upper end of sleeve 60 adjacent an internally threaded portion 65 thereof which engages a corresponding but exteriorly threaded lower end of the case of microphone 41 for the vfastening of 41 and 55 together with microphone plug 64 plugged into microphone socket 66 in the base of the microphone 41.

Consequently, in the use of an embodiment of this invention such as microphone holder 10, the microphone can be set at any compound angle desired inasmuch as it has relatively universal movement and most often is used inclined from the point of its support at 11 toward a speakers face. Persons of different height using it, can adjust the height to suit themselves depending upon the amount of telescoping they desire between tubes 25 and 32. In the course of handling or use, the

sensitive microphone itself is protected and insulated against vibrations, impact and/ or shock with better performance resulting. The setting up of the holder 10 for use is but the work of a moment inasmuch as the microphone 41 with its adapter 55 fixed thereto comprises an axially arranged jack at the lower end which can simply he slipped Over and plugged to plug 52 to fully connect all of the parts of the holder together. Conversely, when the use of the holder 10 is finished, the power is shut off, microphone 41 with its adapter 55 is simply pulled off plug 52 and removed, the extension tube 32 is shoved down into stand tube 25 and moved to any out-of-the-way position desired, including one such as that illustrated in FIGURE 1. In collapsing tubes 25 and 32, it will be noted that in fully telescoped position shown in FIGURE 1, the lower end of tube 32 and hence the lower end of the shock insulating tube 38 remains spaced an appropriate distance away from annular plug 24 and that space will accommodate and nest the extra length of the conductors 23 needed when the device is fully extended. Such nesting within the bottom of stand tube 25 protects the electrical joints of the conductors and inhibits their movement downwardly through the hollow interior of swivel 13 when the operating tubes 25 and 32 are telescoped, thereby leaving the device ready for the next extension without putting undue strain or pulling on the concealed conductors 23.

Referring now to FIGURE 6 of the drawings, a similar extendable microphone holder is illustrated, with a modified form of the shock insulating tube 38 and associated components, together with a modified form of the guide collar 27. In FIGURE 6, similar reference characters with primed accents denote similar components of FIGURES 1 to 5.

In this arrangement of the invention, the acorn cap closure 35 (FIGURES 3 and 5) is omitted, leaving the jam nut 39' in position as shown as a stop for telescoping movement of the extension tube 32' as noted below. The microphone connector sleeve 46' is provided with a relatively larger diameter with reference to the extension tube 32' so that the adjacent threaded end of the extension tube 32' is inserted loosely within the depending skirt portion 70 of the sleeve 46'. The axial counterbore 72, which forms the skin 70, terminates a short distance upwardly, as viewed in FIGURE 6, of the adjacent end of the extension tube 32' to form a stop 74 defining, relative to the extension tube 32, the lower limit of movement of the shock insulation tube 38' and the connector sleeve 46' which is threaded thereto as denoted by reference character 76. When the shock tube 38 and the connector sleeve 46' are thus joined, unthreadingly thereof is prevented by means of set screw 78.

The upper limit of movement of the shock tube 38' and connector sleeve 46' relative to the extension tube 32 is defined by engagement (not shown) of an out-turned flange secured to the lower end of the shock tube 38 and positioned for engagement with the adjacent lower end 44' of the extension tube 32'.

The shock tube 38 is positioned co-axially and spacedly, in this example, within the extension tube 32 by means of upper and lower relatively soft rubber annular members 82 and 84. Other suitable plastic material can be employed in the fabrication of the washers 82 and 84 as long as such materials have an equivalent resiliency. The upper resilient washer 82 is secured at the desired position along the length of the shock tube 38' by an outwardly extending shoulder 86 formed thereon and by the adjacently disposed threaded portion 88 thereof. The lower resilient washer 84 is positioned adjacent the lower end of the shock tube 38 by engagement with a journal or necked-down portion 90 formed in the outer wall surface of the shock tube 38. The elasticity of the resilient washers 82, 84 is such that they can be readily expanded for insertion of the shock tube 38' through their central openings. Additionally, the washers 82 and 84 are about the same outer diameter as the bore of the extension tube 32', or slidably larger, so that when the washers are forced therein to the positions shown in FIGURE 6, they bearingly contact the adjacent smooth inner wall surfaces of the extension tube 32'. Therefore, when axially displacing forces generated by shock, impact, vibration or the like are applied to the extension tube 32' or to the shock tube 38, including components more or less rigidly associated therewith, the resiliency of the washers 82 and 84 permit limited displacement of the shock tube 38' relative to the extension tube 32' in order to minimize or to eliminate such forces before they can be transmitted to the connector sleeve 46 and to the microphone when attached thereto.

The frictional engagement of the outer peripheral edges of the washers 82 and 84 with the smooth inner walls of the extension tube 32 is such that the washers 82 and 84 will not slide along the inner wall surfaces of the tube 32 without rolling or undergoing other severe distortion. Thus the shock tube 32' is returned to its original position by resilient action of the washers 82 and 84 (which are desirably made rather flat for this purpose) after removal of the shock or impact forces. In furtherance of this purpose the upper and lower stops 80 and 74, which in this example are substantially equally spaced from the associated ends 44' and 92 of the extension tube 32, are further spaced relative thereto to terminate relative movement of the shock tube 38' relative to the extension tube before a permanent displacement or sliding of the washers 82 and 84 occurs. Thus, the shock tube 38 and the connector sleeve 46' always remain in the same position as shown in FIGURE 6 relative to the extension tube 32' in the absence of application of shock or impact forces. Following removal of such forces, the resiliency of the washers 82 and 84 returns the shock tube 38' to the original position as shown, inasmuch as the placement of the aforementioned stops terminates movement of the shock tube 38 in either direction relative to the extension tube 32' before the resilient washers 82, 84 can be permanently displaced or their peripheral edges otherwise moved longitudinally of the extension tube 32'.

The jam nut 39' can be adjustably threaded, if desired, to form an alternative, adjustable lower limit stop for the shock tube 38' by contacting the lower edge 94 of the connector sleeve skirt portion 70 to terminate downward movement of the connector sleeve 46' and shock tube 38 threaded thereto. Primarily, however, the jam nut 39 serves as a lower limit stop for downward telescoping movement of the extension tube 32 into the stand tube 25'. A brass slider ring 33 is threaded onto the lower end of the extension tube 32, and, when the extension tube 32' is fully withdrawn or extended from the stand tube 25, engagement of the slider ring 33' with an inwardly formed shoulder 96 of the guide collar 27' serves as the upper limit stop for movement of the extension tube 32'. In this form of guide collar 27, as illustrated in FIGURE 6 of the drawings, the O-ring 31' is positioned in a groove 97 disposed intermediately of the upper and of the guide collar 27' and its limit shoulder portion 96 in order to lend greater stability to the extension tube when the latter is positioned at or near its fully withdrawn position.

Referring now to FIGURES 7 and 8 of the drawings, another form of microphone holder 98 is illustrated therein. In FIGURES 7 and 8, similar reference characters with primed accents denote components which are similar to related components of FIGURES 1 to 6, as the case may be. In the arrangement of FIGURES 7 and 8, the various electrical connections and leads illustrated previously in FIGURES 1 to 6 have been omitted and the holder 98 is adapted to engage and secure a cylindrical base or a tubular portion supporting a microphone or the like, by means of its upper bifurcate clamp 100, which in this example, is lined with felt strips 102 secured thereto. In the latter arrangement, where the holder 98 is used for supporting a microphone or other electrical equipment, it is intended that the electrical connections therefor will be made directly to such equipment or through an auxiliary support (not shown) therefor.

The base portion of clamp 100 is compressed slightly and inserted between upwardly extending arms of the bracket member 104, where it is pivotally mounted on the bifurcate bracket 104 by means of sleeve bolt 105 or the like. As better shown in FIGURE 8, the bracket 104 is threaded upon the axially extending neck-down portion 106 of adapter sleeve 168 as denoted by reference character 110. The adapter sleeve 108 is in turn threaded upon the upper threaded end of the shock tube 38' as denoted by reference character 76', where it is held by set screw 78'.

The shock tube 38 is positioned within a stand tube 112 by means of washers 82 and 84' in the same manner as described in connection with the shock tube 38 and the extension tube 32' of FIGURE 6. The stand tube 112 is substantially similar to the extension tube 32 except that it is not telescoped within an outer stand tube, but instead is threaded at its lower threaded end into the upper end of an interiorly threaded connecting collar 114. The lower end of the connecting collar 114 is in turn threaded to upper arm 116 of a swivel joint denoted generally by the reference character 118 and including a bifurcate lower arm 120 within which the upper arm 116 is pivotally mounted for resisting movement relative to the lower arm 120 by means of clamp screw 122. The lower swivel arm 120 is provided with a securance stud 124 and related hardware for mounting of the holder 98 upon a lectern or console panel or other suitable support (not shown). Desirably, the pivot connection of the swivel coupling 118 is parallel to the pivot 105 of the clamp 100 so that a compound adjustment is provided as the stand tube 112 is pivoted, for example through a vertical angle.

For shock impact and vibration absorption purposes, the operation of the holder of FIGURES 7 and 8 is substantially similar to the operation of the shock mounting of FIGURE 6 of the drawings, with the shock tube 38' of FIGURE 8 being moved resiliently relatively to the stand tube 112 in the same manner as the shock tube 38 of FIG- URE 6 moves resiliently relative to the extension tube 32'. It will be obvious, of course, that the shock mounting .as described in connection with FIGURES 4 and 5 together with the resilient cushions 40 and 43 can be substituted for the corresponding components of FIGURE 8, and also that the holder 98 of FIGURES 7 and 8 can be made extensible by telescoping the stand tube 112 into an outer stand tube (not shown) in the manner illustrated in the preceding figures with reference to extension tube 32 or 32 and stand tube 25 or 25.

Referring now to FIGURE 9 of the drawings, where again reference characters with primed accents refer to related components of the preceding figures, an exemplary form of locking device is shown for ensuring the securance of the microphone adapter 55 to the upper or plug end of the connector sleeve 46, so that the microphone adapter 55 is positively secured upon the microphone holder, for example the holder illustrated in FIGURE 6 of the drawings. In this arrangement of the invention, the microphone adapter 55' is provided with a lower skirt portion 126 into which the upper end of the connector sleeve 46 together with the axial plug 52' of the microphone holder can be inserted. The skirt portion 126 of the microphone adapter 55 is closely fitted about the connector sleeve 46 when thus inserted by means of an inwardly extending lip 128, having a transverse or axially extending groove 13-0 therein.

When the microphone adapter 55 and the connector sleeve 46 are rotatively aligned a ball detent 132 or similar protuberance mounted laterally adjacent the upper end of the connector sleeve 46' is shaped for passage through the groove 136 in such aligned position. When thus inserted, the parts, i.e., the microphone adapter 55' and the connector sleeve 46, are normally secured to gether by co-action of the jack spring contact 54 with the grooved tip 53 of the axial plug 52'. However, the symmetry of the axial plug 52' and associated components permits angular displacement of the connecting sleeve 46 and associated components of the holder about its longitudinal axis while still maintaining electrical contact with the spring contact 54 and the jack base 62'. Thus, by rotatably displacing the connecting sleeve 46', the ball detent 132 thereof is displaced from a position directly above the retaining lip groove 130 such that axial engagement of the ball detent 132, in the rotated or locked position, with the skirt lip 128 prevents unintentioned axial withdrawal of the microphone adapter 55' from the connecting sleeve 46 and the remainder of the microphone holder.

Desirably, the microphone adapter skirt 126 is provided with a small recess 134 or other suitable index in alignment with the skirt groove 130, and a similar recess 136 is formed in the connecting sleeve 46' in alignment with the ball detent 132 in order to indicate the proper rotative positions of the microphone adapter 55 and the connecting sleeve 46' for insertion and locking, or unlocking and removal operations. If desired, the indexing recesses 134 and 136 can be coated with red paint or the like to facilitate identification and subsequent use of the indexing recesses. The rotatable locking means of FIGURE 9 thus cooperates with the axial plug and spring contact arrangement 52', 54' in maintaining the microphone adapter 55' in a position of locked electrical contact with the upper end of the microphone holder, as viewed in FIGURE 9, and specifically to the connecting sleeve 46' thereof.

From the foregoing it will be apparent that novel and efiicient forms of holders for microphones or the like have been disclosed herein. While there have been shown and described certain presently preferred embodiments of the invention together with preferred methods of practicing the same, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims.

We claim:

1. An extensible microphone holder or the like, comprising, in combination, a hollow swivel coupling adapted to be fastened to a support, said coupling having a lower arm with a vertical axis about which said holder or the like is adapted to be swung, said coupling further having an upper arm rotatable about a horizontal axis relative to said lower arm to provide universal movement for said holder or the like, a stand tube fastened to said upper arm in alignment therewith, a mechanical annular bafile constricting a conductor opening through said upper arm and stand tube, an extension tube in slidable telescoping relation to the interior of said stand tube, a guide collar connected to the outer end of said stand tube having a smooth bore through which said extension tube slidably passes and a larger threaded counterbore for afiixation to the said outer end of said stand tube, a centering O-ring cushion bumper within said guide collar and around the outside of said extension tube, a slidable stop fixed to the lower end of said extension tube and projecting somewhat radially outwardly of the outside thereof, the diameter of said stop being greater than the diameter of said bore in said guide collar, a shock insulating tube extending coaxially through said extension tube and in resil ient spaced relation to the interior thereof, said insulating tube being mounted in elastomeric ring cushions at the upper and lower ends thereof to hold said insulating tube resiliently relative to said extension tube, a cap having an opening therethrough larger than the outside diameter of said insulating tube, the upper end of said insulating tube being threaded, a connector sleeve having an axial opening at the lower end thereof for passage of the upper end of said insulating tube, a nut inside said connector sleeve to engage said upper end of said insulating tube, lock nut means to fasten said connector sleeve immovably to the upper end of said insulating tube for insulation against shock along with said insulating tube, a single stem telephone-type plug fastened to the upper end of said connector sleeve and projecting axially and outwardly therefrom, the bottom of said extension tube when in fully telescoped relation to said stand tube being spaced from said baflde, a microphone adapter having an adapter sleeve, a telephone-type jack closing the lower end of said adapter sleeve and having a central axial opening adapted to be engaged and disengaged from said plug by insertion thereof therein and removal therefrom, a microphone plug free in the upper part of said adapter sleeve and connected to said jack by flexible conductors, the upper end of said adapter sleeve being internally threaded to permanently receive the correspondingly externally threaded lower end of a microphone with a microphone socket to engage said microphone plug, whereby, said extensible microphone holder or the like provides quick connection and disconnection means for said microphone, said holder or the like can be pointed in any desired direction and elevation with a selected length of holder suited to the user of said microphone and said microphone is insulated against shock, impact and vibration.

2. An extensible microphone holder or the like, comprising, in combination, a hollow swivel coupling adapted to be fastened to a support and provide relatively universal movement for said holder or the like, a stand tube fastened to said coupling, an annular baflie constricting an internal opening between said coupling and stand tube, an extension tube in slidable telescopic relation to said stand tube, a guide collar connected to the outer end of said stand tube and having a cushion bumper guide for the outside of said extension tube, a slidable stop fixed to the lower end of said extension tube and within said stand tube at all times, a shock insulating tube extending coaxially through said extension tube and in resilient spaced relation thereto, the lower ends of said extension tube and said insulating tube being substantially coterminous and spaced from said bafi'le when said holder is fully collapsed, the upper end of said insulating tube extending outwardly beyond the outer end of said extension tube, a connector sleeve fixed to said upper end of said insulating tube in spaced relation to said extension tube, a single stern telephone-type plug fastened to and projecting axially from the upper end of said connector sleeve, a microphone adapter having an axially operative telephone-type jack at the lower end thereof adapted to be engaged and disengaged by and from said plug, a microphone electrical connection component in said adapter sleeve above said jack and connected thereto by flexible conductors, the upper end of said adapter sleeve adapted to be rigidly affixed to a microphone with engagement of said component, whereby, said extensible microphone holder or the like provides quick connection and disconnection means for said microphone including said adapter, said holder or the like can be adjusted to any desired position and said microphone insulated against shock, impact and vibration.

3. An extensible microphone holder or the like, comprising, in combination, a hollow swivel coupling adapted to be fastened to a support and provide relatively universal movement for said holder or the like, a stand tube fastened to said coupling, an extension tube in slidable telescopic relation to said stand tube, means for limiting the extent of axial sliding movement of said extension tube relative to said stand tube, a shock insulating tube extending coaxially through said extension tube and in resilient spaced relation thereto, a connector sleeve fixed to said insulating tube in spaced relation to said extension tube, a single stem telephone-type plug fastened to and projecting axially from the upper end of said connector sleeve, a microphone adapter having an axially operative tele 9 phone-type jack at the lower end thereof, adapted to be engaged and disengaged by and from said plug, the upper end of said adapter sleeve adapted to be rigidly afiixed to a microphone.

4. An extensible holder for a microphone or the like comprising, in combination, a mounting swivel adapted to provide relatively universal movement for said holder, a stand tube connected to said swivel, an annular baffle constricting an opening adjacent the joint between said swivel and said stand tube, an extension tube in coaxial telescoping relation to said stand tube, the bottom of said extension tube when in fully telescoped relation to said stand tube being spaced from said baffle, a microphone or the like, telephone-type plug and jack members, one of said members being connected to said extension tube, the other of said members being connected to said microphone or the like whereby said holder is extensible, provides quick connection and disconnection for said microphone or the like and provides space for conductors in the lower end of said stand tube when said holder is d telescoped.

5. An extensible holder for a microphone or the like, comprising, in combination, a mounting swivel adapted to provide relatively universal movement for said holder, a stand tube connected to said swivel, means constricting an opening through the lower end of said stand tube, an extension tube in coaxial telescoping relation to said stand tube, the bottom of said extension tube when in fully telescoped relation to said stand tube being spaced from said means, electrical quick connection members, one of said members being connected to said extension tube and adapted to coact with the other of said members connected to said microphone.

6. A holder for a microphone or the like, comprising, in combination, a mounting to provide movement for said holder, a first tube connected to said mounting, a shock insulating tube extending coaxially relative to said first tube and in resilient spaced relation thereto, said insulating tube being mounted in cushioning rings adjacent the upper and lower ends thereof to keep said insulating tube steady despite movement of said first tube, single stem plug and jack connection members, one of said members being connected to said insulating tube and adapted to coact with another of said members connected to a microphone or the like for quick connection and disconnection, whereby said microphone is insulated against shock, impact and vibration.

7. A shock absorption holder for a microphone or the like, said holder comprising a mounting to provide movement for said holder, a first tube connected at one end thereof to said mounting, a shock insulating tube inserted within said first tube and extending in spaced substantially co-axial relationship to said first tube, a pair of resilient annular members spacedly mounted on said shock tube and bearingly engaging the adjacent inner surfaces of said first tube so that shock impact and vibrational forces are absorbed by said shock tube and said resilient members without permanently displacing said shock tube relative to said first tube, said shock tube protruding from the other end of said first tube, and clamp means mounted on said protruding shock tube end and engageable with a microphone or the like.

8. The combination according to claim 7 characterized in that said clamping means are pivotally mounted on the protruding shock tube end and said first tube mounting is a pivoted coupling having the pivot axis substantially parallel to the pivot axis of said clamp means to provide a compound adjustment of said clamp means relative to said first tube mounting.

9. The combination according to claim 7 characterized in that stop means are provided for limiting the axial displacement of said shock tube within the resilient limits of said annular members without permanent deformation of said annular members or sliding engagement thereof with annularmembers to its original position relative to said first tube after application and removal of said shock forces.

10. The combination according to claim 7 characterized in that said resilient members are generally washershaped to extend the limit of resilient movement thereof and to extend correspondingly the limits of axial -displace ment of said shock tube relative to said first tube without attendant permanent deformations or sliding engagement of said resilient members relative to said first tube.

11. The combination according to claim 9 characterized further in that said shock tube protrudes axially from each end of said first tube, and said limit mean-s include a stop member mounted on each of said protruding shock tube ends in outwardly and axially spaced relationship with the respective adjacent ends of said first tube.

12. The combination according to claim 11 characterized further in that the stop member adjacent said other first tube end includes an adapter sleeve secured to the adjacent protruding end of said shock tube and having a skirt portion into which said first tube outer end is loosely inserted and axially spaced from a terminal counterbore portion forming said skirt, and said clamp means is pivotally mounted upon said adapter sleeve.

13. The combination according to claim 11 characterized further in that single stem plug and jack connection members are provided, one of said members being connected to the shock tube stop member adjacent said other first tube end for co-action with the other of said connection members coupled to a microphone or the like, and electric leads are extended through said shock tube and said mounting and connected to said one connection member.

14. The combination according to claim 13 characterized further in that said last-mentioned stop member is a generally cylindrical sleeve secured to said shock tube, "and said other connection member is mounted upon a microphone adapter portion having a skirt portion into which said sleeve is closely fitted, spring contact means form part of said jack connection member and are engageable with a groove formed in said plug member for retaining said members together, and grooved lip and detent means are cooperatively formed on said sleeve and on the inner surface of said skirt portion and are disposed so that insertion and rotation of said sleeve within said skirt portion locks said parts together.

15. The combination according to claim 9 characterized further in that means are provided on said shock tube for retaining said annular resilient members thereon against axial movement relative thereto, and said limit means includes an end portion of said shock tube protruding from the adjacent end of said first tube, and an out-turned flange secured to said protruding shock tube portion and spaced from said first tube adjacent end but juxtaposed thereto for engagement therewith within the corresponding limit of resilient displacement of said annular members.

16. A shock absorption holder for a microphone and the like, said holder comprising a mounting to provide movement for said holder, a first tube connected at one end thereof to said mounting, a shock insulating tube inserted within said first tube and extending in spaced substantially co-axial relationship to said first tube, a pair of resilient annular members spacedly mounted on said shock tube and bearingly engaging the adjacent inner surfaces of said first tube and of said shock tube so that shock impact and vibrational forces are absorbed by said shock tube and said resilient members without permanently displacing said shock tube relative to said first tube, said shock tube protruding from the other end of said first tube, single stem plug and jack connection members, one of said members being connected to said shock tube for co-action with another of said connection members consaid first tube so that said shock tube is returned by said nected to a microphone or the like, and electric leads extending through said mounting and through said shock 2,062,125 11/1936 Foster 179-189 tube and connected to said one connection member. 2,435,816 2/1948 Anderson 179150 17. The combination according to claim 16 in which 2 525 911 10 1950 Keene et 1 24 35 X said first tube is an extension tube telescoped within a 3 153 123 10 19 4 Harman 179 14 stand tube secured to said mounting and means are .pro- 5 vided for slidably mounting said first tube within said FOREIGN PATENTS Stand tube- 668,730 3/1952 Great Britain.

References Cited UNITED A S N S KATHLEEN H. CLAFFY, Primary Examiner.

758,304 4/1904 Fergusson 179-152 10 WILLIAM c. COOPER, Examiner.

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Classifications
U.S. Classification381/363, 381/368, D14/227, 248/121
International ClassificationH04R1/08
Cooperative ClassificationH04R1/08
European ClassificationH04R1/08