US754962A - Clamp. - Google Patents

Description

PATENTED MAR. 22, 1904.. W. B. BENNETT. CLAMP.

APPLICATION FILED MAY 12, 1903.

y No. 754,962.

N0 MODEL.

frans w. Pnoraumq. wmnomn. n. c.

UNITED STATES Patented March 22, 1904.

PATENT OFFICE.

CLAMP.

SPECIFICATION forming part of Letters Patent No. 754,962, dated March 22, 1904.

Application iiled May 12,1903. Serial No. 156,817. (No model.)

To ad whom it may concern:

Be it known that I, WILLIAM BAKER BEN- Nn'r'r, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Clamps, of which the following is a speciication.

My invention relates to improvements in clamps, and refers particularly to a clamp specially adapted for woodworkers use for clamping wood to be glued or otherwise worked upon, although the clamp may be used for any purpose where it would perform its functions in an efficient manner.

One object of my invention is the provision of a clamp capable of being instantly brought into engagement with the object to be clamped and which will secure the object against any movement, thus saving time and promoting efliciency. 1

Another object of my invention is the provision of a clamp which will be quick in action, reliable in operation, and which will possess merit in point of simplicity and durability, which can be produced at a small price, and which will be entirely practical in every respect.

With these objects in view my invention consists of a clamp embodying novel features of construction and combination of parts substantially as disclosed herein.

Figure 1 represents a side view of my clamp with the adjusting or clamping screw shown in vertical position, with the threads engaging the threads of the threaded collar. Eig. 2 represents a central longitudinal sectional View, the clamping-screw being free and capable of a sliding movement in the collar or sleeve; and Fig. 3 represents a vertical transverse sectional view through the bearingblock, collar, and clamping-screw.

In the drawings the letter A designates the base strip or support of my clamp, which is provided on its under face with a longitudinal groove or channel B, in which fits the lugs C on the inclined embracing-loops D, said loops embracing and closely fitting the base-strip, and one of the loops is further provided with a spring-strip E, which bears in the said groove and prevents slipping of the loop.

One of the inclined loops is formed with an upright or standard F, which is provided with a cavity Gr, in which fits an abutment-strip H, and the other loop is formed with an open or bail-shaped vertical standard J, adapted to receive the wings K on the two-part bearingblock L, said block having its meeting edges M recessed and shouldered, as shown, to make a neatvsnug joint. The said bearing-block is formedwitharound bore having screw-threads N, with which engage the exterior threads O on the collar or sleeve P, said collar or sleeve being also provided with the interior threads Q, with which are adapted to engage the threads R on the clamping-screw S. To one end of the clamping-screw is attached a handle or wheel T, and the other end is formed with a ball U, which engages the bearing V in the clamping head or block W, and the said clamping-screw has the two opposite fiat sides X, the purpose of which is to permit the screw to be moved quickly to bring the clampinghead thereon against the object, and when this has been done it is simply necessary to revolve the screw and the threads will engage the threads of the collar and the binding action will be instantly produced and the object be retained fast.

In operation it will be understood that the object to be clamped is placed against the abutment-strip of the standard and the screw is slid in the collar until it comes against or near the object, when by simply turning the wheel the screw will engage the screw-collar and the object will be clamped and iirmly secured between the standard and the clampingblock of the screw. l

It will thus be seen that I produce aclamp which can be used for any purpose where a quick-acting and reliable clamp is desired, and which will prove specially useful and desirable for use upon woodwork.

I claim- 1. In a clamp, the combination of a base or support, a standard mounted thereon and forming an abutment, an open standard also mounted on the support, a sectional bearingblock in said standard, a threaded collar mounted in said bearing-block and a clamping-screw having iiat sides to slide in said collar and threads to engage the threads of the collar to effect the binding, said standards each having a depending loop embracing the support and securing said standards.

2. In a clamp, the combination of a support, the pair of loops tting upon said support, the standard formed on one of the loops and providing a stop, the open standard formed on the other loop, the bearing-block mounted in said standard, the collar in the bearingbloek, the screw having fiat sides and thread, the handle on one end of the screw and the ad-

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