US521076A - Albert bareis - Google Patents

Description

(No Model.)

A. BARF-IS. WBZEIVGH. No. 521,076. Patented June 5, 1894.

' UNITED. STATES PATENT OFFICE.

ALBERT BAREIS, on ST. LOUIS, MISSOURI, ASSIGNOR TO LOUISA BAREIS, on

SAME PLACE.

WRENCH.

\ SPECIFICATION forming part of Letters Patent N0. 521,076, dated June 5, 1894.

' Applicatinr filed October 16, 1893- Serial No. 4881237- N model) To all whom it may concern:

Be it known that I, ALBERT BAREIS, of St. Louis, State of Missouri, have invented certain new and useful Improvements in Wrenches, of which the following. is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to an improved pipe wrench, and consists in the novel construction, combination and arrangement of parts as will be more fully hereinafter described and designated in the claim.

The object of my invention is to provide a simple construction of pipe wrenches, which, in outward appearance, resembles and is known as the alligator jaw, but my invention difiers materially from this class of wrenches, as will be hereinafter shown.'

In the drawings: Figure 1 is a side elevation of my improved Wrench, the jaws being in section to more clearly show the clamping plate and ratchet plate and their connections with said jaws, a portion of the handle being broken away. Fig. 2 is a cross-section of one of the jaws taken on the line 2-2 of Fig. 1. Fig. 3 is a cross-section of the opposite jaw taken on theline 3-3 of Fig. 1. Fig. 4 is a perspective view of the sliding plate, which I use in carrying out my invention. Fig. 5 is a side elevation of my improved wrench. V, i

1 indicates my improved wrench, which is constructed with a hollow handle 2 and jaws 3 and 4, they all being cast integral. The jaw 3 is provided with a transverse cut-a-way portion -5 on its side adjacent the jaw 4, which extends into the metal at the base of saidjaw 3 and terminates adjacent the upper end, which forms a projection 6 on Said jaw. Located in this cut-a-way portion 5 is a ratchet plate 7, provided with teeth 8, which incline downward so that when they engage a pipe, and the handle is manipulated in the direction indicated by the arrow in Fig. 1, the pipe will be turned in the same direction. The ends of the ratchet plate are dovetailed, and the ends of the cut-a-way portion 5 are made to conform with said dovetails, so that said ratchet plate 7 is transversely loose in the jaw and longitudinally rigidly with said jaw.

9 indicates a screw which passes through a bore 10 in the jaw 3, and engages a screwthreaded bore 11 formed through the ratchet plate 7. This screw is to hold the ratchet plate in position, and prevent it from slipping out of the cut-a-way portion 7 when it is not desired.

Formed in the outer end of the jaw 4 is a rectangular out-away portion 12, which extends from the outer end of said jaw inward a suitable distance so thatastaple 13, carried by a sliding plate 14 can be located therein. This plate 14 is located on the inner side of the jaw 4 and constructed to slide thereon, it being held in position at its upper end by a pin 15 passing through the cut-a-way portion 12, and a slot 16. formed by the staple 13. This staple 13 is detachably connected to the plate 12 by the ends of said staple passing through apertures '17 which are formed in the plate 14, the plate being adjacent the apertures 17, so that when the ends of said staple are riveted they will be in alignment with the face of the plate. 7

Formed on the lower end of the plate 14 is a projection 18, which is in alignment with the sides of the plate 14, and extends into a bore 19, which is formed in the wrench at the base of the jaw 4, it being in alignment with said projection.

Located in the bore 19 is a tension spring 20 which engages the inner end of the projection 18 and keeps the plate 14 at its outward limit, this movement being controlled by the engagement of the pin 15 with the inner side of the staple 13.

The handle 2 of the wrench 1 is hollow for making thesame lighter and more convenient for handling, and also to allow one end of a bar to be inserted therein for making the handle longer, so that a greater fulcrum can be had to the wrench.

The operation is as follows: The operation of the wrench is very simple, necesitating the application of the same in the direction op posite that to which it is desired to turn the pipe, the sliding plate compensating for any movement of the pipe in settling into the teeth, said plate moving slightly downward and immediately assuming its normal location when the engagement over the pipe is released. In turning a pipe, the wrench is preferably moved back and forth slightly in one direction and gripping and turning the pipe in an opposite direction, the sliding plate assuming a new position with every turn of the pipe.

The wrench is constructed of such a size as V or depression, a recess being formed in the wrench at the convergence of the jaws, a smooth plate mounted on the jaw having the slot, yielding pressure devices mounted in the depression and impinging against the smooth-plate,- a staple riveted to the smooth plate and extended within the slot in thej aw,

and a pin transversely mounted within the jaw and extended across the said slot and j through the said staple, whereby the smooth plate is permitted to move longitudinally of the said jaw, the movement of said plate being limited by the said pin and staple.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT BAREIS.

Witnesses:

W. J. SANKEY, EDWARD Evnnnr'r LONGAN.

Images