US2412627A - Lifting clamp - Google Patents

Description

E. M GOWAN LIFTING CLAMP Dec. 17, 1946.

Filed Aug. 11, 1945 INVEN TOR. [EL/51608 /Vlc GOA/6H BY W ATTOIQNEY Patented Dec. 17, 1946 UNITED STATES PATENT OFFICE LIFTING CLAMP Eugene McGowan, New York, N. Y.

Application August 11, 1945, Serial No. 610,385

1 Claim. (01. 294-104) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 1 2 Th invention relates t a lifting clamp and arms l3 and M are slipped under the horizontal more particularly to a lifting clamp for use in flanges 2t and 21 and on either side of vertical handling I beams, T beams and the like. Web 28. Another similar clamp is preferably An object of this invention is to provide a positioned at the opposite end of the T beam and clamp for lifting I beams, T beams and similar 5 a cable secured to the bores 24 on both clamps. structural members without danger of slippage. The upward tension on the bore 24 resulting from Further objects and advantages of this invenhoisting forces the jaw 22 against the upp r su tion, as well as its construction, arrangement and fare of the T beam and securely clamps the beam operation, will be apparent from the following against the arms I3 and I4. The teeth 23 pro. description and claim in connection with the acvent the device from slipping off while an upward companying drawing, in which, pressure is exerted at bore 24, but when the pres- Fig. 1 is an isometric View of a preferred form sure is released the device is readily disengaged. of the present invention, It is to be understood that various modifica- Fig. 2 is a side elevational view of the device tions and changes may be made in thi invention shown in Fig. 1 being used on a T beam, and without departing from the spirit and scope Fig. 3 is a sectional view taken on line 3--3 of thereof as set forth in the appended claim. Fi 2, The invention described herein may be manu- The lifting clamp H has an integrally formed factured and used by or for the Government of body portion l2 provided with horizontal upthe United States of America for governmental orting arms l3 and I4, and a bifurcated vertical purposes without the payment of any royalties fork l5, thereon or therefor.

Fork I5 has parallel projections l6 and I1 pro- What is claimed is: vided with transverse coaxial bores I8 and IS. A lifting clamp comprising a body portion, a Pin 20 extends through bores l8 and I9, and ropair of horizontally extending, laterally spaced tatably supports lever 2| adjacent the middle arms on said body, a fork extending pwardly portion thereof. At one end of lever 2| is located from said body, a bore through said fork, a rod the jaw 22 having teeth 23 and at the opposite mounted in said bore, a lever pivotally mounted end bore 24 which is adapted to be connected to on said rod, a bore at one end of said lever and a a supporting cable. jaw at the opposite end of said lever adapted to In using the clamp to pick up one end of a T be positioned in clamping relation with said arms. beam 25 as shown in Figs. 2 and 3 the supporting EUGENE McGOWAN.

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