US790168A - Wrench. - Google Patents

Description

No. 790,168! PATENTED MAY 16, 1905. T. J. BALDWIN.

WRENCH.

APPLICATION FILED MAR.13,1903.

I 2 SHEETS-SEEM 1.

PATENTED MAY 16, 1905.

T. J BALDWIN.

WRENCH.

APPLICATION FILED MAR.13,1903.

2 SHEETS-SHEET 2. Y

Patented May 16, 1905.

PATENT OFFICE.

THOMAS J. BALDWIN, OF BEAUMONT, TEXAS.

WRENCH.

SPECIFIGATION forming part of Letters Patent No. 790,168, dated May 16, 1905.

Application filed March 13,1903. Serial No 147,596.

To all whomit may concern.-

pertains to make and use the same.

This invention relates to ratchet-wrenches; and it has for its object to provide an article of manufacturewhich will consist of a minimum number of parts having such constructions and relative arrangements as will permit of manufacture of the wrench at a low price and will insure efficiency of operation at all times, a further object of the invention being to provide a construction from Which the worn parts may be easily and quickly removed for substitution of new parts.

An additional object of the invention is to provide a simple style of wrench which may be used upon nuts or bolts of diflerent diameters.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a top plan View of a wrench.

Fig. 2 is a longitudinal section taken hori-.

zontally through the wrench. Fig. 3 is a longitudinal section taken vertically through the wrench. Fig. 4: is a View similar to Fig.1, showing a second form of the invention.

Referring now to the drawings, the present wrench includes a handle portion 5, having an enlarged head 6 at one end, and through which head, at right angles to what may be termed the upper flat face 7 of the head is formed a cylindrical passage 8, at one end of which is formed the inwardly-directed flange 9.

In connection with the handle and head of the wrench above described there is employed a ratchet-wheel 9, having the reduced end portions 10 and 11, and this ratchet-wheel is disposed rotatably in the cylindrical passage or socket 8 of the head 6, one end of the ratchet-wheel resting against the flange 9, while the opposite end of the ratchet-wheel lies slightly inwardly beyond the opposite face? of the head. The reduced end portion 11 of the ratchet-wheel fits snugly and rotatably within the inclosure of the flange 9, while the opposite reduced end portion, 10, projects outwardly beyond the face 7 and is encircled by a flat ring 12, havinga radiating lug 13, through which is passed a screw 14 into the head of the wrench, at the side of the socket 8 thereof. This ring is adapted to be swung into and out of position when the screw is loosened, and to hold the ring against rotation upon the screw pins 14. are mounted in the head in position to enter perforations 15 through the ring when the ring is clamped against the head by tightening up the screw.

In the side of the head 6 is a recess 16, which communicates at one end with the socket 8, the opposite end of the recess, which is in the direction of the handle of the wrench, being closed and rounded, as shown at 17, and in this recess is fitted loosely a pawl 18, having an enlarged rounded end 19, which lies in the rounded end of the recess 16 and is adapted to oscillate therein, so that the opposite end of the pawl may rise and fall as the ratchet-wheel is rotated in the socket 8 in one direction, it being understood that the pawl prevents reverse rotation of the ratchet-wheel.

To hold the pawl yieldably in engaging position, a retaining spring-plate 19 is employed and is mounted pivotally at one end between the enlarged end of the pawl and the handle of the wrench, said spring-plate having a reduced finger 20, which projects at right angles to the free end of the spring-plate and engages over the free end of the pawl, this finger serving to hold the pawl with its enlarged end in the'corresponding end of the socket, so that the pawl will not movefrom its proper place and there will be no lost motion. Anotch 22 is formed in the end of the recess 16 to receive the finger of the springplate.

The ratchet-wheel is designed to engage with the nut, bolt, or screw that is to be operated upon, and for this purpose said ratchetwheel isprovided with a passage 23, which extends from end to end thereof and is angular in cross-section to it the body, it being IOO it is disposed to receive the body to be rotated in the passage of the ratchetwheel, after which the wrench is oscillated, the wrench handle and head moving with the ratchet-wheel in one direction, while the return movement of the handle and head is independent of the ratchetwheel.

In Fig. 4 of the drawings there is shown a second form of the invention, which is designed for use in connection with bodies of different sizes, the ratchet-wheel in this construction having a number of longitudinal cross-seetionally angular passages 2 L, 25, and

26 therethrough, having different transverse dimensions. In the use of this second form of the invention the Wrench is adjusted to receive the body to be rotated in the proper one of its angular passages, and the wrench is then oscillated as above described.

It will be understood that in practice other modifications of the invention may be made and that any suitable material and proportions may be used for the various parts without departing from the spirit of the invention.

What is claimed is As an article of manufacture, a wrench comprising a handle having an annular socket therein, said socket having an opening in its base passing through the handle, a ratchetdisk removably and rotatably disposed within the socket and having a rectangular passage tl'ierethrough for the reception of a nut, said handle having a slot in its side conmiunicating at one end with the socket and rounded at the remaining end, and a pawl having one ol its ends rounded disposed with this end in the rounded end of the slot for pivotal movement therein, and lying with its remaining end in engagement with the teeth of the ratchet-disk to prevent rotation thereof in one direction, a spring-plate having a perforation therethrough disposed against the outer face of the pawl and extending beyond one end of the slot, said plate being removably attached to the handle by means of a screw engaged with its perforation and with the handle, said plate having a laterally-dirc cted linger engaged over the free end of the pawl, and a plate removably secured to the face of the handle and having an opening therethrough communicating with the socket and smaller than and concentric with the socket, said opening being larger than the rectangular opening.

In testimony whereo t I aflix my signature in presence of two witnesses.

THOMAS J. BA LDW'I N.

Vitncsses:

(l. T. Hnisre, \VILL. BALDWIN.

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