US880460A - Clamping device. - Google Patents

Description

PATEETED FEB. 25, 1908. H. H. MOGIFFIN & E. H. MOUAULEY.

GLAMPING DEVICE.

APPLICATION FILED JUNE 26,1907.

' Affomey erence being had therein to the accom'pany- UNITED STATES PATENT OFFICE.

HENRY H. McGIFFlN AND EDWARD H. McC-AULEY, OF PITTSBURG. PENNSYLVANIA, ASSIGN- ORS OF ONE-THIRD 'TO JAMES P. BRENXAX, OF BRADDOCK. PENNSYLVANIA, AND ONE- THIRD TO W. L. ELFORD AND ONE-THIRD TO SAID MCGIFFIN, OF PITTSBURG. PENNSYL- VANIA.

CLAM'PING DEVICE.

Specification of Letters Patent.

Patented Feb. 26, 1908.

Application filed June 26. 1907. Serial No. 380.924.

T all whom it may concern: I

Be it known that we, HENRY H. MCGIF- the United States, residing at Pittsburg, county of Allegheny, and State of Pennsylvania,. have invented certain new and useful Im rovements in Clamping Devices, of which t 1e following is a specification, refing drawing.

'Tlns invention relates to a'clamplng de- Y vice, and particularly to s ring actuated plates adapted to embrace te escoping members and retain said members in their relative position while permitting an adjustment thereof.

, The invention has for an object to provide clam-ping plates apertured to receive telescoping members, and normally held in clamped relation by the elasticity of said plat'es, while the parts are adapted to be drawn together to release the telescoping membersby a connecting screw which also prevents any accidental movement of said plates toward each other.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel featuresthereof defined by the ap ended claims.

In t e drawing; Figure 1 is a side elevation of the invention showing its application to the Wind guard of an automobile; Fig. 2 is a vertical section; Fig. 3 is a detail perspective of the clamp removed from the telescoping members, and Fig. 4 is a modified form of the clamp.

Like numerals refer to like parts in the several views of the drawing.

This invention is adapted for application to any construction or arrangement of telescoping members, but particularly in connection with a folding wlnd guard, as shown in Fig. 1 to which it is especially adapted. In this ap lication of the invention the numeral 1 esignates the wind guard which is the usual glass plate ivote'd or hinged at 2 to the front of the dasff board 3 of an automobile, and is adapted to be folded downnected to the guard by means of the knuckle joint 6, and the latter to the forward portion FIN and EDWARD H. McCArLEr, citizens of 5 7 of the machine by means of a similar joint 8 pivotally connected with the bracket 9 located upon the portion 7. The clamping is effected by means of the plates 10 and 11 each of which is provided with the a erture 12 of slightly greater diameter than tie portion to be gripped so that when said plates are drawn at an angle other than a right angle to the telescoping members the edges of the a ertures 12 bite against said members and secure a firm grip thereon which prevents any slipping of the adjustment. These plates 10 and 11 may be connected by forces the same outward away from each other, as shown in 2, this spring being connected to the plates by means of the screws. .14 where found desirable. The plates are adapted to be held in their gripping position and to be released therefrom when desired by means of the bolt 15 which is swiveled in one of the plates by means of the head 16 and collar 17 at oppositcsides thereof, and has its opposite end 18 threaded into the other plate. The bolt is also provided with the knurled hand hold 19 provided with the tool sockets 20 to assist in its adjustment and operation.

In the modified form of the invention shown in Fig. 4, the-U-shaped spring member 21 is used, the 0p osite ends 22 thereof being equivalent to tie plates 10 and 11, and connected by the bow 23 by which they are normally separated from each other.

connected to-the free ends 24 of this spring,

similar manner to that hereinbefore described.

' In the operation of the invention it will be seen that the spring of the gripping plates and into biting contact with the telescoping members which are connected to the wind guard and frame of the machine respectively so that the guard is retained in an upri ht position. under thefriotional gripping which allows the necessary vibration to prevent the breakage of the glass in rough traveling or the cutting of the threads of the holding brace if The adjusting bolt 15, shown in Fig. 2, is

means of the spring 13 which normally as shown in Fig; 2 and acts thereon in a normally forces them away from each other bers, oppositely disposed aperturecl plates folded down above the radiator at the front of the machine, as shown by dotted linesin Fig. 1, thus presenting a simple and efficient construction by which the telescopin members may be readily held in adjuste position and quickly released when desired. The spring of the grip ing plates causes them to bite upon the te escopmg members, and the bolt extending between these plates prevents any accidental compression thereof and consequent releasing which might allow a slipping of the telescoping members under the vibrations of the machine, while the operation of this bolt draws the gripping plates into parallelism thus releasing the bite upon the telescoping members and permitting a freemovement thereof relative to each other for the adjustment of the wind guard or its folding as above described.

Having described my invention and set forth its merits, what 1 claim and desire to secure by Letters Patent is 1. In a brace forwind guards, telescoping members, a clamping device mounted on said members and comprising opposite gripping plates connected by a spring portion to normally dispose them out of parallelism, and a connecting bolt extending through the free ends of said plates and having a threaded end mountedin one late for bringing them into parallelism to re ease the grip thereof.

2. A clamping device comprising opposite gripping plates normally held out of parallelism by a connecting sprin portion, and a bolt pivoted in one of said p ates and threaded into the other plate for drawing said plates into parallelism.

V 3. In a gripping device, telescoping memsurrounding each of said members, means for normally holding said plates in gripping contact, a bolt swiveled at its head in one of said plates and having its opposite end threaded into the opposite plate, and an operating device carried by said bolt between sald plates.

4. Ina device of the class described,'the combination .with the pivotally mounted wind guard of an automobile, of telescoping members connecting said uard to the base of the machine, clamping plates connected to each other at one end by a sprin portion and each embracing oneof said te esco ing members, and means mounted in the p ates for ad'usting said plates toward and from each other.

5. In a device-0f the class described, the combination with the -pivotally mounted Wind guard of anautomobile, of telescoping members connecting said uard to the base of the machine, clamping p ates connectedto each other at one end by a spring portion and embracing said telescoping members, a

connecting bolt mounted in the free ends of the plates for adjusting said plates toward and from each other, a pivotal connection between one of said telescoping members and the wind guard, and a pivoted connection between the opposite member and the base of the machine.

6. A clamping device comprising a U- shaped spring body to normally support its apertured free ends to grip opposite telescoping members, and an adjusting bolt extending between said free ends to retain them in adjusted position and release the same.

. 7. In a clamping device, a U-shaped spring body having apertured free ends to receive telescoping members, and means connecting andmounted upon said free ends for holding or adjusting the same toward and from each 4 other.

In testimony whereof we aflix our signatures in presence of two witnesses.

HENRY H. McGIFFIN. EDWARD H. MGCAULEY. Witnesses as to Henry H. McGiflin:

DAvID M. JONES, HENRY F. I-IoFFMAN. Witnesses as to Edward H. McCauley:

JOHN L; FLETCHER, ALFRED T. GAGE.

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