US1281484A - Ratchet-wrench. - Google Patents

Description

W. S. BELLOWS.

RATCHET WRENCH.

APPLICATION FILED APR. 18. i912.

1,281A84. v Patented. 0012. 15, 1918.

Invenlar,

War Pen i WARREN S. BELLOWS, 0F WORCESTER, MASSACHUSETTS.

RA'roHE'rwnENoH. I

Application filed April 18,

To all whom it may concern:

Be it known that I, WARREN S. BELLows, a citizen of the United States, and a resident of Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented certain new and useful Improvements in RatchetWrenches, of which the following is a full, clear, and exact specification.

This invention relates to that type of wrenches wherein a handle portion has an apertured head and a detent, and an annular peripherally toothed socket 1s rotatably supported in the apertured head and has its teeth engaged by the detent; and the purpose of the invention is the construction of a simple, inexpensive and durable wrench of this character, all the parts, except possibly the head, being designed to be stamped from sheet metal.

Referring to the drawings formlng part of this specification, Figure 1 is an elevation of a wrench embodying my improvements. Fig. 2 is an interior view of one half of the handle portion, with the other half removed. Fig. 3 is a perspective View of the same. Fig. 4 is a perspective view of the centering block. Flg. 5 is a section through the head on the dotted line X-X, and Fig. 6 is a cross section of the line Y-Y in Fig. 1.

, The body portion of the wrench 1s 1n two cupped sections 1 and 2 contact ng at the edges of their rims 3, as shown in Figs. 5 and 6. The handle portion 4 of each section is substantially straight, terminating at one end in a circular head 5 having a round hole 6 concentric therewith. Within the head is located the socket member 7 having trunnions 9 turning in the holes or bearings 6, and a toothed periphery 10, the socket member having a suitable socket 11 axially through it of any desired shape and size, either square or hexagonal.

For holding the detent 12 1n engagement with the teeth 10 of the socket head so that the latter will be held firmly against turning in one direction while rotating freely in the opposite direction, a block 13 1s provided having a seat 14 w1th1n whlch an end of the detent is pivoted, as by a pin or screw 15. This block is extended to the extreme end of the handle portion a in order to en Specification ofLetters Patent.

Patented Oct. 15, 1918.

1917. Serial No. 162,915.

- which may be communicated thereto by the detent in resisting the strain exerted upon the socket member.

Moreover; the block 13 is made thick enough to lie in both body sections 1 and 2, and to fit snugly against the inner surfaces of the rims 3 at numerous points, especially at the extremity of the handle and at intermediatepoints thereof, in order to hold the handle portions in exact alinement.

The head portions 5 are held in alinement by the socket member, and the entrance of its trunnions 9 in the holes 6, so that, after screws 16 have been put through one handle section into suitably threaded holes in the other section, the wrench is complete and ready for use.

First, however, a small helical spring 17 is introduced within a hole 19 drilled in the side of the detent 12 and pressing against the rim 3 thereat for yieldingly holding the geteiit in its engagement with the toothed For lightenin the wrench, the block 13 is both cupped and narrowed at an intermediate portion, but I prefer to have the side straight which is in line with the detent, in order more firmly to resist the thrust thereof.

What I'claim is:

1. A wrench comprising two portions adapted to be fastened together to compose a handle and head, the juncture being longitudinal and each portion having a rim throughout its entire edge, the rim-edges butting one against the other, each headportion having a hole concentric therewith,

a socket member having trunnions rotatably supported in said holes, and a toothed periphery, a detent engaging the toothed periphery, and a block pivotally supporting the detent, the block fitting between the rims of the handle portion and" extended to the latters end for withstanding the detents operative pressure.

2. A wrench comprising two portions adapted to be fastened together to compose a handle and head, the juncture being longitudinal and each portion having a rim throughout its entire edge, the rim-edges butting one against the other, each head-portion having a 'hole concentric therewith, a Esocket member having hollow trunnions able it to sustain any amount or presearegrotatably supported in said holes, its periph ery being formed with ratchet teeth, a block fitting between the rims of the handle portion and reaching to the latters end, said block having a recess in its end adjacent the socket member, a detentpivoted in said recess to rest against the latters Walls and engaging said ratchet teeth, a hole being formed in a side of the detent, and a helical spring fitting in said hole and abutting against the rims t0 yieldingly press the de- 10 tent into its engagement with said teeth.

In testimony that I claim the foregoing invention, I have hereunto set my hand this 16th day of April, 1-917r WARREN S. BELLOWS.

Witnesses:

LYMAN H. BELLQWS, ETHEL R. NICKERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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