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Publication numberUS1031637 A
Publication typeGrant
Publication dateJul 2, 1912
Filing dateDec 11, 1906
Priority dateDec 11, 1906
Publication numberUS 1031637 A, US 1031637A, US-A-1031637, US1031637 A, US1031637A
InventorsMax H Fischer
Original AssigneeMax H Fischer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Gripping device for rods, tubes, and the like.
US 1031637 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




Patented July 2, 1912.




' Patented July 2, 1912.





I Fig-.9.

Patnted July 2, 1912..


Fi/g: 10.

V in one direction only,



To all whomit may concern:

Be it knownthat I, MAX H. FISCHER, a citizen of the United States, residing at East Orange, in the county of Essex and State,of New Jersey, have invented certain new and useful Improvements in Gripping Devices for Rods, Tubes, and the Like, of which the following is a specification.

My invention relates to gripping or clutching devices and especially to a device which is'designed for automatically interlocking two parts atany suitable point of adjustment when the same are moved lengthwise relative to each other.

By my invention I produce a quick-acting gripping device which will so interlock or which may be con structed so as to interlock in either direction desired, and which will be compara tively simple, durable and cheap, and which can be easily andquickly manipulated from i a suitable place, while permitting the gripping mechanism to be entirely inclosed, thus leaving no open space for the accumulation of dust and dirt.

Similar letters of reference refer to similar parts throughout the drawings.

In the accompanying drawings, Figure 1 is a longitudinal section of'my improved device, the inclosingv casing and operating stem being partially broken away; Fig. 2 is a similar section'of a modified form showing the device gripping against movement in one direction only Fig. 3 is a longitudinal section of another modified form; Fig. 61 is a crosssection on the line 4.-4 Fig. 2; Fig. 5 is a cross-sectionon the line 5-5 Fig. Fig. 6 is a partial section on an enlarged scale; Fig. 7 is another partial section on an enlarged scale; Fig. 8 is a modification on an enlarged scale; Fig. 9 is an elevation of another modification of my device, the casing partly broken 7 section on the'line 9-9. of Fig. 9; Fig. 11 is a cross-section on the line 11-11 of Fig. 10; and Fig. 12 is another modification.

.In the drawings, A represents the rod or other member to be'gripped' B represents a casing, which is preferably in the form of a hollow cylinder and is provided with internal conical faces G, which taper toward the hole or bore Z) wh1ch hole F or bore preferably extends from end to end of the casing diameter'throughout its length. The oomcal B, and is of the same size or Specification of Letters Patent.

having away; Fig. 10 is a large to permit them to fall out.

\ Patented July 2, 1912.

Application filed December 11, 1906. Serial No. 347,270.

faces 0 are not essential, as one or more in- V clined faces will serve the purpose.

. D indicates rolling grippers which ride upon the conical faces C and are interposed between the member'to be gripped and said conical faces.- The number and shape of the gripping devices may be varied, three balls or spheres riding on each of the inclined faces being preferred, as illustrated in the forms of the device shown in Figs. 1 to 8 inclusive.

E is an operating stem, preferably in the form of an intervening tube or tubular sleeve, which slides in the hole or bore 6 of- -the casing and preferably extends beyond both ends thereof. Each end of this intervening tube or sliding sleeve is provided with a knob or handle F which, besides its usual function, acts as a stop for limiting the sliding movement of the said operating stem E with relation. to the casing B. More than one knob is-not desirable in some cases and the knob at either or both ends may be dispensed with, any suitable stop for limiting the movement of the stem being substituted.

, Said operating stem E is afso provided with apertures G of such size and so placed that the grippers E will be permitted to impinge against the member to be gripped when the operating stem is in one position and that the endwise edges 9 of said apertures will .slide in between the grippers and the member to be gripped, roll back said grippers out of gri ping contact, and finally result in cutting o the said grippers when said 0perating stem is moved to its other position. The apertures shown in Figs. 1, 3, 6 and 7 are in the form of longitudinally disposed slots. long enough to accommodate opposite grippers, while in Figs. 2 and 8 separate holes for eachgri-pper are shown. When more than one set of grippers, opcrating upon divergent or convergent coni- 6, 7 and 8, the endwise edges g of the apertures G will be solocated as to permit the grippers riding upon one inclined or conical face to impinge or grip while simultaneously cutting off the grippers riding upon the opposite inclined or conical face. "These cal faces are employed, as shown in Figs. 1,

apertures are preferably of a size sufiicientlyf large to permit the grippers to protrude and freely to grip or impinge, but not sufficiently H indicates spring pressed washers or plungers which abut against the rolling grippers at one side and normally force said grippers toward the narrow end. of the conical faces C. These washers, however,

are not essential as the spring or springs may be made to abut against the grippers directly. Any suitable spring may be employed for this purpose, the spiral spring J being shown arranged around the operating stem.

The operation of the device is as follows: Assuming the parts to be in the positions shown in Figs. 1 and 6, the member A is locked against movement in either direction. When the knob at one endis pulled, or the knob at the other'end is pushed, the edges 9 at one end of the apertures G slide in between the rolling grippers and the member A, rolls said grippers back into the wider space on the conical face, finally cutting off contact between the grippers at one end of the device and the member A, whereupon the member A may be moved in the direction opposite to that in which the operating stem is pushed or pulled, while it remains interlocked against movement in the other direction. Thus in Fig. 7 the operating stem is shown'as pushed or pulled downward and the member A released against upward movement but locked against downward movement. To move the member A in the opposite direction, it is only necessary to again manipulate the operating stem to rection.

the position shown in Fig. 8, when the member A may be freely moved downward but not upward.

Fig. 2 shows a modification of the device interlocking against movement in one direction only. The operation is substantially the same as that described above.

- In Fig. 3 anothermodification is shown in which the conical faces on which the rolling grippers ride are formedin the member A instead. of in the outer member and is designed to grip the inside of a tube or other hollow member. When it is desired to withdraw the tube, the knob F is engaged'and pulled, whereupon the tube may be withdrawn.

Figs. 9, 10 and 11 show a slight modification of the device in which the member .to be gripped and the casing are rectangular in cross-section. In said figures, the casing B is provided with inclined faces C between which and the member to be gripped are interposed rollers D instead of balls, and the intervening member is a plate E Knobs are provided at only one end of this modification, a shoulder e reciprocating in a recess 6 formed in the bore of the casing acting as a stop to limit the relative movement of the plate to the casing in one di- H indicate spring-pressed plungers, which abut against the rollers and normally force them toward the narrowend F 'g. 12 illustrates another modification in which the wedges D are substituted for the balls or rollers of the other constructions.

What I claim and desire to secure by Letters Patent, is:

1. The combination of two members, one being tubular and the other extending within the same, one of said members being movable longitudinally with respect to the other, and the relatively non-movable member having an inclined surface, a gripping device for'engaging the inclined surface and an opposing surface on the movable member; a spring for normally pressing the gripping device into contact with said surfaces and a sleeve movable longitudinally of the non-movable member and having a beveled edge adapted upon longitudinal movement to intervene between the gripping device and the movable member, whereby the gripping device is moved laterally and longitudinally at the beginning of movement. of the same to release the movable member.

2. The combination with a tubular member of another member arranged within the same-one member being movable longitudinally with regard to the other, an inment thereof in either direction, and operating'means adapted upon alternate movement in opposite directions alternately to release each of the gripping devices to permit movement of the movable member alternately in one direction but not in the other.

3. The combination of two members, one being tubular and the other extending within the san1eone member being movable longitudinally with respect to the other, and the relatively non-movable member being provided with oppositely inclined surfaces, a gripping device arranged intermediate each inclined surface and the surface of the other member; means adapted normally to maintain each of said gripping devices in engagement with the movable membet to prevent movement in either direction,

and operating means consisting of a sleeve movable longitudinally of said members, having a beveled-edgev elongated aperture contiguous to each of-the gripping devices the edge of such apertures being adapted upon movement in opposite directions alternatelyto' intervene between the gripping devices and the movable member whereby the gripping device on one incline will be removed out of contact'with the movable member while the gripping device on the opposite incline remains in gripping contact. v

4. The combination with a tubular member, of another member arranged within the s'ame,one' member being movable longitudinally with regard to the other, an inclined surface near each end of one of said members, a plurality of grippingdevices arranged intermediate each inclined ;face and the surface of the other member and substantiallyencircling the inner member, means adapted normally to maintain each set of said gripping devices iii-engagement with the movable member to prevent movement thereof, and operating means adapted on movement in opposite directions alternately to remove and maintain one set of gripping devices out of contact with the movable member but to leave the other set of gripping devices in gripping engagement therewith.

In witness whereof, I have signed 'my name to the foregoingspecification in the presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2514760 *Sep 2, 1948Jul 11, 1950Hanson George GGripping tool
US2539223 *Mar 29, 1946Jan 23, 1951Harry L StillmanDrill guide
US2578663 *Jun 23, 1945Dec 18, 1951Arthur BeaupreFishing rod
US2622309 *May 21, 1948Dec 23, 1952Allis Chalmers Mfg CoDevice for filing the slots of laminated cores
US2640242 *Apr 27, 1949Jun 2, 1953Weimer William CAdjustable buckle for the body of artificial limbs
US2705119 *Dec 6, 1949Mar 29, 1955Ridge Tool CoPipe support stand
US2711918 *May 19, 1951Jun 28, 1955Chisholm Ryder Co IncTelescopic antenna
US2744436 *Mar 23, 1953May 8, 1956Milburn M RossFastener with pivoted rod engaging dogs
US2812200 *May 16, 1955Nov 5, 1957Beauregard Yeargan ErvinMeans to attach a ring to pipe
US2838266 *Nov 1, 1954Jun 10, 1958Cameron W SparksAdjustable strut
US2871949 *Jan 20, 1956Feb 3, 1959Baker Oil Tools IncReleasable clutch device for well tools
US2878878 *Jan 20, 1956Mar 24, 1959Baker Oil Tools IncClutch for subsurface well tools
US2925837 *Apr 18, 1957Feb 23, 1960Twiford Harry GTire mounting stand with rotatable wheel support
US2932481 *Jun 15, 1954Apr 12, 1960BreerBipod camera support
US2990747 *Mar 7, 1958Jul 4, 1961Aerpat AgBall detent fastener having pin movable to unlocked position by movement of actuator in either axial direction
US3008742 *Oct 21, 1959Nov 14, 1961Goldstein ArnoldExpandible pole lamp
US3019502 *Jul 23, 1958Feb 6, 1962Edmond L Deramee JrLocking device for oil well drill rods or pipes
US3023434 *Dec 6, 1957Mar 6, 1962Plastic Binding CorpBinding machine
US3059970 *Feb 1, 1960Oct 23, 1962White S Dental Mfg CoChairs having tilting backs
US3204925 *May 15, 1962Sep 7, 1965Enrico MontuoriValve with nonrotating valve stem
US3215974 *Jan 22, 1963Nov 2, 1965Consarc CorpElectrode stub clamp
US3252180 *Jun 26, 1963May 24, 1966Houk Machine CoAdjustable grip for ejector mechanism in an injection mold
US3252718 *Feb 5, 1963May 24, 1966Fmc CorpHanger bushing
US3293347 *Oct 24, 1965Dec 20, 1966Consarc CorpElectrode stub clamp
US3298257 *Aug 27, 1965Jan 17, 1967Goss James WWire clamping hand grip
US3318170 *Aug 5, 1965May 9, 1967Bendix CorpNo-lash axially movable steering column
US3502358 *May 17, 1968Mar 24, 1970Claypool Aluminum Products IncAdjustable post assembly
US3516304 *Sep 12, 1968Jun 23, 1970Vermette Howard HSafety catch mechanism
US3835486 *Aug 14, 1972Sep 17, 1974Inter Royal CorpTelescoping novel stand assembly
US3871780 *Nov 5, 1973Mar 18, 1975Skillingaryds Mekaniska AbDevice for locking two concentrically positioned and axially displaceable members
US3991964 *Dec 10, 1974Nov 16, 1976Evan John And Sons (Kenfig Hill) LimitedSelf-locking device for telescopic props
US4030579 *Mar 26, 1975Jun 21, 1977Picker X-Ray Mfg. LimitedLineal lock for X-ray apparatus
US4105097 *May 2, 1977Aug 8, 1978Gebr. Hofmann Gmbh & Co. Kg, MaschinenfabrikLift, especially two-post lift for motor vehicles
US4278224 *Jun 26, 1978Jul 14, 1981Arakawa, Co. Ltd.Wedging action fixture
US4291416 *Mar 12, 1979Sep 22, 1981Hoeptner Herbert W IiiChain tensioner
US4457741 *May 26, 1981Jul 3, 1984Hoeptner Iii Herbert WTensioner
US4540201 *May 16, 1983Sep 10, 1985Tuthill CorporationTube connector
US5829811 *Aug 3, 1995Nov 3, 1998Skinner, Ii; Frank RaymandMultiposition locking gripper assembly
US6065897 *Feb 12, 1998May 23, 2000E & E Engineering, Inc.Roller locking mechanisms
US6354227Jan 11, 2000Mar 12, 2002Steelcase Development CorporationAdjustable table with worksurface having write-on surface adapted for use as projection screen
US7195215 *May 5, 2004Mar 27, 2007Chin-Chih LinSuspension arm
US8186246Mar 24, 2005May 29, 2012Weatherford/Lamb, Inc.Gripping or clamping mechanisms
US8464391Mar 28, 2008Jun 18, 2013Diversey, Inc.Mop head fixation device and method
US8959699Jun 18, 2013Feb 24, 2015Diversey, Inc.Mop head fixation device and method
US20050160881 *Mar 24, 2005Jul 28, 2005Weatherford/Lamb, Inc.Gripping or clamping mechanisms
US20050224669 *May 5, 2004Oct 13, 2005Chin-Chih LinSuspension arm
US20090050279 *Aug 21, 2008Feb 26, 2009Seiko Epson CorporationScreen
US20110023251 *Mar 28, 2008Feb 3, 2011Johnsondiversey, Inc.Mop head fixation device and method
USD719712Sep 7, 2012Dec 16, 2014Diversey, Inc.Floor maintenance tool
USRE30718 *Dec 14, 1978Aug 25, 1981Rockwell International CorporationSaddle lockup for flexible printing plate
DE2844239A1 *Oct 11, 1978Apr 17, 1980Messerschmitt Boelkow BlohmComponent joint for missile sections - has grooves in spigot and socket together forming annular chamber for locking balls
DE19809078A1 *Mar 4, 1998Sep 16, 1999Schaeffler Waelzlager OhgInsbesondere linear wirkendes Klemmgesperre
DE19980346B4 *Feb 5, 1999Nov 18, 2010Schaeffler Technologies Gmbh & Co. KgInsbesondere Linear wirkendes Klemmgesperre
DE102012214509A1 *Aug 15, 2012Nov 14, 2013Continental Teves Ag & Co. OhgDevice for e.g. providing air clearance between brake lining and brake disk of electromechanical service brake in motor car, has ring element allowing balls to be moved away or inclined from ring in released position of ring element
EP2314826A1 *Sep 15, 2000Apr 27, 2011Weatherford Lamb, Inc.Gripping device and jaw assembly for gripping a wellbore tubular
U.S. Classification294/99.2, 248/412, 294/82.28, 188/67, 294/102.1, 403/104, 285/315, 24/706.8, 279/29
Cooperative ClassificationB25B9/02