US556340A - Attachment for walking-beams - Google Patents

Description

(No Model.) 7

- A. BPERT.

ATTACHMENT FOR WALKING BEAMS.

N0. 556,340. Patented Mar. 17, 1896.

Witnesses. Inventor.

QJM W 5% Attorney.

UNITED STATES PATENT QEEICE.

AUGUSTUS EPERT, OF FRANKLIN, PENNSYLVANIA.

ATTACHMENT FOR WALKING-BEAMS.

SPECIFICATION forming part of Letters Patent No. 556,340, dated March 17, 1896.

Application filed February 1, 1896. Serial No. 577,662. (No model.)

T all whom it may concern.-

Be it known that I, AUGUSTUS EPEEr,-a citizen of the United States, residing at Franklin, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Attachments for alking-Beams; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a walking-beam attachment, and particularly to a device for holding the temper-screw hook used in wellboring in proper position upon the walkingbeam.

The object of the invention is to provide a clamp or clamps to fit over the end of the walking-beam and hold the trunnions of the temper-screw hook upon said beam end, without weakening or impairing the strength of the said beam, by making in the beam bearings for the trunnions or forming bolt-holes to keep the clamps in position.

A further object of the invention is to provide means whereby the temper-screw-hook trunnions may have a slidable motion upon the top of the walking-beam, that said hook may center itself in line with the temperscrew, and to increase or diminish the slidable travel of the trunnions as desired.

Other objects and advantages accruing from the special construction and arrangement of parts will appear in the specification to follow.

In the accompanying drawings, forming part of this application, Figure 1 is a perspective View of part of a walking-beam with the temper-screw hook held in position by my clamps, the temper-screw and its bridle being partly broken away. Fig. 2 is a side elevation of the beam end and hook with the clamps adjusted to give the hook-trunnions increased slidable play. Fig. 3 is a perspective view of one of the clamps, partly broken away to show the sheave or pulley it contains.

The same numeral references denote the same parts throughout the several figures of the drawings.

The temper-sore w 1 has the usual lift-ropes 2, with weight 3, and the said screw is provided with an ordinary bridle 4c- The temper-screw hook 5 has trunnions 6, which engage the plain top surface of the end of the walking-beam 7 upon each side of a slot 8, with the stem of the said hook depending through the slot. The hook is held in this position by means of a clamp 9, placed over the top of the slot 8 in front of thetrunnions, and a similar clamp 10 in like position behind the trunnions. These clamps are adjustably held in position by the set-screws 11 without making screw-holes in the sides of the beam, and the slot is of sufficient length to admit of the hook being fixed therein as desired and to give the trunnions greater or less play by simply adjusting the clamps.

Besides the fact of avoiding the expense of trunnion-bearings and the consequent weakening of the beam at the slot, these clamps strengthen the beam at this point by extending across the slot and hugging the sides of the beam closely.

The under side of each clamp is provided with conical projections or spurs 12, which engage the surface of the beam on either side of the slot to further insure the clamps from displacement and to hold them in position while the set-screws are being tightened. These spurs require no holes made in the beam, and are simply forced into the wood as desired, and are readily removed when it is desired to change the position of the clamp or clamps.

The ends of the clamp 9 have an aperture 13, in which is secured a'sheave or pulley 14, and a double pulley 15 is secured to the under side of the beam 7. The lift-ropes 2 are supported by these sheaves and pulley to the weight 3.

The ends of the clamp 10 are provided with a ring 16, to which is secured the end of a bellows rope or chain 17. The latter passes through the eye of a screw-bolt 18 upon the top of the beam for the purpose of operating a bellows and forge (not shown) by the working of the walking-beam.

I do not wish to be understood as limiting myself to the use of my clamps applied to beams only with aslot, to the size, nor to the material of which the clamps are made; but,

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a walking-beam,-

and a hook having trunnions engaging the top of the beam, of the clamps adj ustably secured to the beam upon each side of the trunnions, to limit the movement of the latter, substantially as set forth.

The combination with a walking-beam, and the hook having trunnions, of means for slidably holding the trunnions upon the beam, consisting of the clamps upon each side of the trunnions and having conical projections engaging the top of beam, and the set-screws engaging the clamp ends and the sides of the beam, substantially as set forth.

3. The combination with the walking-beam,

the trunnioned hook, the clamps secured to the beam and between which the trunnions are slidably retained, of the sheaves housed in the ends of one of the said clamps, the sheave 15, the temper-screw, and the liftropes from said screw, supported by the sheaves, substantially as shown and described and for the purpose set forth.

I11 testimony whereof I affix in y signature in presence of two witnesses.

AUG-US'IUS EPERT. \Vitnesses:

B. V. RIDDLE, DELMAR T. MARK.

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