US 2149341 A
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Description (OCR text may contain errors)
I March 7, 1939.` v
. H. c. HARRISON f 2,149,341
EARPHONE SUPPORT Filed sept. 11. 19:55
v /NVEA/ron H. c'.l HARR/SO/V Patented Mar. 7, 1939 EARPHONE SUPPORT Henry C. Harrison, Port Washington, N. Y., assignor to Bell Telephone Laboratories, Incorporated, New York, N. Y., a corporation of New York Application September 11, 1935, Serial No. 40,062
This invention relates to supports and particularly to those used for devices which are required to assume any one of a plurality of positions with respect to the user, such, for example, as earphone supports.
The object of this invention is to provide a supyport for a sound receiver which is inexpensive, rugged anddurable and which allows the receiver to be maintained in any one of a number of posiillustrated in Figs. 2 and 3. For example, if it is desired to have the receiver in its normal vertical position with respect to the user, groove I4 and the corresponding groove I4 in the opposite surface are used. If, however, it is desired to tilt the receiver in either direction with respect to the head-band, then slots I 5 and I5 or I6 and I6 are used. Fig. 2 shows the position of receiver I when grooves I6 and I6 are used.
1o tions with respect to the user. In Fig. 3 the receiver I0 is shown rotated about 10 In its preferred form this invention comprises a vertical axis. This is accomplished by engagan extension on the receiver cooperating with a ing .diagonally Opposed grooves as, for example, slot in a depending portion of a head-band. The I3 and I4 or I4 and I3. slot. engages grooves in the side of the extension, The position of the receiver with respect to the .l5 a plurality of grooves being supplied in various ends of the slot can readily be adjusted by Sliding 15 locations to permit the vuser to select any two the receiver up 01 dOWn t0 tlle desired DOSitiOnopposed grooves which will give the desired re- It is apparent from the foregoing description ceiver position. The sides of the extension are that any adjustment Of the IeCeVer With respect preferably surfaced with resilient material, and to the head-band is possible with my novel sup-- the slot may be formed of wires spaced apart a porting block and yet no set screws or other distance slightly smaller than the width of the machined or Stamped-metal parts are necessary extension across the bottom of opposed grooves t0 eTeCt the adjustment. Bleek ll may be made so that'a certain amount of pressure is exerted integral With receiver l0 and 1fwn-resilient, in yupon the grooves, which case Wire Il should possess sufficient resil- In the drawing which accompanies this speciieney t0 permit the expansion of the slot formed 25 cation and forms a pari; thereof; thereby so that it may pass over the ridges be- Fig. l is an elevation in perspective of a retween grooves. ceiver showing the novel supporting means; It is understood that the description and draw- Fig. 2 is an elevation showing the receiver roing 0f the invention herein contained is merely so tated about a horizontal axis; and illustrative of the invention and that the inven- Fig, 3 is a plan View Showing the receiver 10- 131011, therefore, is not t0 be limited thereto, but tated about a vertical axis. is to be determined by the appended claims.
Referring now to Fig. 1, l0 is a receiver adapted What is claimed is: to be placed against the ear of the user. The 1. In COInbnatiOn, d suDDOIt lla-Vins' al Slot. a or, receiver may be either electrical or acoustical and receiver, a resilient extension on the receiver and may be constructed of any desirable composition. a plurality 0f pairs of gI'OOVed DOrtiOnS 0n the Secured to some convenient surface of receiver I0 extension Complementary to and adapted for fricis a resilient block I I, preferably made of rubber. tional engagement Wtl'l Said Slot.
Block II is provided with two symmetrical sur- 2- An acoustic sound 1`eCeiVer Comprising a 4o faces which may or may not be flat. Only one of resilient body having an acoustic sound channel .lo these surfaces I2 is shown in Fig. l, the other therein, a plurality of pairs of oppositely disbeing hidden. In each surface are two parallel posed grooves on the sides of said body and means grooves I3, I4 and two diagonal grooves I5, I6 cooperating with said grooves to maintain the which cross one another. The corresponding receiver in proximity to the ear, said means comgrooves in the hidden surface may be designated prising a head-band and spaced wires at the ends 45 I3', I 4', I5 and I6', respectively. Engaging one of the head-band, said Wires being adapted to of the grooves on each side is a slotted member engage any two opposed grooves whereby the I1 which forms a head-band by which receiver receiver can be maintained in any one of a plu- I0 is supported. An economical method of formrality of positions with respect to the head-band.
5o ing the slot and head-band is by bending a wire 3. A sound receiver having a soft rubber exten- 50 into a U and fastening the sides of the U together sion, a slotted support to hold said receiver, and a by means of a strap I8. The diameter of the Wire pair of flutes on oppositely disposed sides of said is chosen small enough so that it readily engages extension adapted to frictionally engage said the grooves in the sides of block I I. slotted support. The adjustability of the receiver support is 4. A sound receiver, an extension of soft rub- 55 ber integral therewith, a support therefor having an elongated slot and a plurality of pairs of angularly displaced flutes integral with said extension and complementary to and adapted for frictional engagement with oppositely disposed sides of said slot.
5. A sound receiver, an extension of soft rubber integral therewith and having a plurality of angularly displaced flutes on each of two oppositely disposed sides thereof, a support therefor having oppositely disposed parallel sides adapted for frictional engagement with said flutes.
HENRY C. HARRISON.