US722695A - Ratchet-wrench. - Google Patents

Description

No. 722,695. PATENTED MAR. 17, 1909..

o. B. GRAGBY.

'A RATCHET WRENCH.'

APPLIogTIoN Hmm AUG. 19, 1902.

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UNITED STATES AIENI oHARLE-s E. GRACEY, or coRAoPoLIS, PENNSYLVANIA, AssIeNoR on oNE- HALE To WILLIAM T. TREDWAY, oF coRAoPoLIs, PENNSYLVANIA.

RATcHET-WRENCH.

SPECIFICATION forming part of Letters Patent N o. 722,695, dated March 17, 1903. Application filed August 19,1992. Striano. 129.192. (Nomoaein To all wwnfb it may concern: bolts 7 of any convenient number, and upon Be it known that I, CHARLES B. GRACEY, a one of such holding devices adjacent to the citizen of the United States, residing at Corabushing is pivotally mounted a pawl 8, adaptopolis, in the county of Allegheny and State of ed to engage the teeth 6, the pawl being pro- 5 Pennsylvania, have invented certain new and vided with a rearwardly-extendinglug or slot, 55

useful Improvements in Ratchet-W'renches, with which engages the free end of a spring 9. of which the following is a specification, ref- The pivotal bearing portion of the pawl is erence being had therein to the accompanying slightly wider than its forward and back pordrawings. tions, providing a bearing for the sides and Io My invention refers to the class of ratchetpreventing them from binding against the pe- 6o wrenches,and relates to the mannerofmaking ripheral bearing portion of the bushing. In the handle, the construction of the spring and the forms shown in Figs. l and 2 the spring its mounting, the means for inserting and reis turned one-quarter, as at l0, whereby its moving the bushings, the locking pawl-bearlat sides conform to and are embraced by the I5 ing pin, and to the various features of coninner sides of the handles 2, the spring being 65 struction as a whole. firmly held in place by one of the securing- The objects in View have been to produce rivets 7, as clearly shown. As thus madethe aratchet-wrench composed of few parts, simentire wrench is composed of but ve parts, ple and cheap in construction, while being exclusive of the holding-rivets, and the parts 2o durable and efficient, and to provide for 'are strongly held together by but three rivets, 7o

changing the bushing for various-sized nuts producing a very serviceable tool. or other bodies. In Figs. 3 to 6, inclusive, I have shown a Figure l is a longitudinal sectional view of construction wherein one of the sides 2 is promy improved ratchet-wrench, indicated by vided with a hinged extension 2', pivoted at 25 the line I I of Fig. 2. Fig. 2 is a longitudinal ll to one of the sides 2 and adapted to be raised, 75 sectional view at right angles to Fig. l, indias indicated in dotted lines, so as to permit cated by the line II II of Fig. l. Fig. 3 is a 0f the removal or insertion of bushings for view in side elevation, illustrating a modied different sizes of nuts. In this construcconstruction. Fig. 4 is aplan View, partly in tion the bearing 7 for the pawl is rotatably 3o section, of Fig. 3. Figs. 5 and Gare cross-secmounted in the opposite side, passes through 8o tions on the linesV Vaud VI VI,respectively, a transverse slot 12, and terminates in a of Fig. 3. Fig.. 7 is a partial interior view of thumb-piece 13 of a size to pass through the the Wrench shown in Fig. l, one of the solid slot 12 when in register and is adapted to sides having been removed and exposing the be turned, as in Fig. 4, so as to lock the side 35 interior, showing the spring-holding lugs. 2 in position. In this construction and in 85 Referring now to the drawings, 2 2 are the that shown in Fig. 7 the spring 9 is inserted sides composing the handle and which are exbetween one or more pairs of lugs 14 14, extendedforward, terminating in enlarged cirtending inwardly from one or both sides 2, cularbearings 3, in which is rotatably mountby which when the sides are secured together 4o ed the bushing 4, having the central opening the spring will be firmly held in place and in 9o 5 of a size and shape (square, hexagonal, or engagement with the pawl. The arrangeotherwise) to conform to the nut or other body ment of these holding-lugs may be varied as to be turned. The bushing is provided with desired and Inay conveniently be located on v a centrally arranged peripheral series of one side only, extending across the opening, 45 ratchet-teeth 6, extending beyond the general and it will also be understood that any num- 95 bearing diameter of the bushing, by which it ber, more or less, than the number shown is retained between the opposite bearings 3, may be utilized. The back end of the spring beyond which the bushing preferably extends bears against a suitable abutment formed by somewhat at each side. shoulders on the inner side of` one or both of 5o The sides 2 are held together by rivets or the sides 2, and this construction of holding Ioo means for the spring is very efficient and may beused with either the permanent or hinged sides.

The advantages of my invention will be appreciated by those accustomed to the use of such tools. It is capable of application in contracted locations, is very powerful, and not liableto get out of order.

Having described my invention, what I claim isl ll. In a ratchet-wrench, the combination of oppositely-located sides provided with bearing extremities, one of said bearing extremities being hinged, a rotatable ratchet-bushing and a pawl therefor, held between said relatively movable parts, and a spring held in 0perative relation with the pawl by bearinglugs on the stationary portion of the handle, Substantially as set forth.

2. The combination of oppositely-located sides forming a handle, separated at one end to provide an intervening space and terminating in bearing extremities, one of said bearing extremities being hinged, a bushing mounted in said bearings between the sides and provided with peripheral ratchet-teeth, a rotatable locking-stem, a pawl mounted thereon, and a spring secured between the sides and iu engagement with the pawl, substantially as set forth.

3. The combination of oppositely-loeated sides forming a handle, separated at one end to provide an intervening space and terminating in bearing extremities, one of said bearing extremities being hinged and provided with a transverse slot, a bushing mounted in said bearings between the sides and provided With peripheral ratchet-teeth, a rotatable locking-stem having a flat turning head adapted to register with the slot, a pawl mounted on the 1ocking-stem, and a spring secured between the sidesv and in engagement with the pawl, substantiallyT as set forth.

4. The combination of oppositely-located sides forminga handle, separated at one end to provide an intervening space and terminating in bearing extremities, one of said bearing extremities being hinged and provided with atransverse slot, a bushing mounted in said bearings between the sides and provided with peripheral ratchet-teeth, a rotatable locking-stem having a flat turning head adapted to register with the slot, a pawl mounted on the locking-stem, and a spring secured between holding-lugs in the sides and in engagement with the pawl, substantially as set forth.

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

CHARLES B. GRACEY.

Witnesses:

J. F. MGKENNA, C. M. CLARKE.

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