US1513212A - Speed ratchet wrench - Google Patents

Description

Oct. 28. 1924.

J. H. BEALE ET AL 5 FEED RATCHET WRENCH Filed Nov. 6, 1923 2 Sheets-Sheet 1 Oct. 28 1924.

J. H. BEALE ET AL SPEED RATCHET WRENCH Filed NOV. 6, 1923 2 sheets sheet- 2 Patented Get. 28, 1924. i

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JOHN H. BEALE AND LEO KINCH, 0F EUGENE, OREGON.

PATENT comes.

srnnn' Karo na" WRENCH.

Application filed November 6, 1923. Serial No. 673,176.

To all whom it may concern:

Be it known that we, JOHN H. BEALE, a citizen of the United States, and resident of Eugene, in the county of Lane and State of Oregon, and Lno KINoH, a citizen of the United Stat-es, and resident of. Eugene, in the county ofLane and Sta-te of Oregon, have invented certain new and useful In1- provements in Speed Ratchet Wrenches, of which the following is a specification.

Our invention relates to the type of An object of the invention is to provide such a device which can be rapidly'rotated by pressure on the handle, but when it becomes diflicult to turn the driven part, can be turned by a pawl and ratchet mechanism operated by aseparate handle or lever;

Another object of the invention is to so arrange the parts that the rapid rotation may be ineitherdirection as desired or in which thefparts may be set to prevent rela tive rotation of the spindle and sleeve.

Another object of the invention is to pro vide means whereby the lever may actuate the pawl and ratchet mechanism to turn the spindle of the device in either direction as desired.

Other objects will be apparent from the" following detailed description and appended claims.

In the drawings: Figure 1 is a side elevation with parts in section of the wrench.

Figure 2 is a vertical section of a portion of the sleeve with parts in section- Figure 3 is a side view of the sleeve with portions'in section.

Figure 4c is a view of thepawl and ratchet mechanism with lever foroperating the same, the spindle and sleeve being:

shown in section. s

Figure 5 is a View at right angles to'that of Figure 4. a r

Figure 6 is a detached view of a portion of the spindle with the ratchet thereon.

Figure 7 is a view of the finger piece which is set to determine the direction of rotation of the spindle. 1

Figure 8 is aperspective View of the internally threaded nuts which cooperate with the spiral grooves in the spindle and the pawls for holding either or both nuts against rotation on the spindle. c

A spindle 1 is provided with two spiral grooves 2 and 3 for right and left hand rotation thereof. At one end a hand piece 4 of any suitable form is secured to the spindle by a set screw 5 or in any other desired manner. At the other end is carried a detachable and interchangeable socket 6 in the followingmanner. Near its end in one'side thereof the spindle 1' has a cavity 7 in which is retained a ball'8 pressed, outwardly by a spring 9. The socket, 6 slips overthe outer end ofthe sp-indleand abuts against I a collar 10 thereon at which timethe ball 8 is pressed outwardly into a depression in the inner wall of the socket. This will prevent any accidental removal of the socket but willpermit it to be readily detached when it is'desiredfto substituteone of difierent size o'r'form; Obviously the outer end or" the spindle 1 will be, angular in form and the engaging. portion, of the socket similarly shaped to prevent relative rotation between the parts.

. Fitting onthe spindle are two ratchet members 11' and 12, each having a sleeve like portion 18 provided, with an internal rib or thread 1 1 adapted'to engage one or the other of the grooves 2 and 3. ,,One of the threads 14: :is right hand and the other leftl ,hand so that the spindle may be rotated in one direction or the other according. to which rachet member is'held -stationary.-

These members 11 and 12 alsoha-ve teeth 15 and 16 respectively which are adapted to be engaged by awls as hereinafter set forth.

surrounds the spindle, and the enlarged portion is-provided with an opening 19. The enlarged :portion 18 encloses the ratchet members 11 and 12 and the pawls 20 and 21 whi'chare adapted to cooperate therewith. The form of these pawls is clearly shown in Figures 2 and 8, and they have a broad end 22 remote from the teeth 15 and 16 which bearssuch a relation to the enlarged portion 18 of the sleeve that there can be no relative movement of rotation between the pawls and the sleeve- The broad end 22 of each pawl A sleeve 1 having an enlarged portion 18 iii adapted to rest on the sleeve like portions 13 oftheratchet members. Each pawl has a smaller end 23 overlying the ratchet teeth 15 or 16 and adapted to be pressed into engagement with the same.

Within the sleeve and overlying the pawls is an operating member 24 shown in Figure 7 which has a plate portion 25 slidable within the sleeve, a bowed spring on the un der side thereof which rests on the pawls'at its ends, and a finger piece 26 which projects through the opening 19 in the enlarged portion 18 of the sleeve. Notches may be provided in the edge of this opening as shown in Figure 2 to cooperate with a projection on the member 2% if desired to hold it in ad justed position. i r 7 When the member 24 is pushed to the left in Figures 2 and 8, the end 27 of the sprii'ig will bear down on the broad end of the pawl 20 liftingthe small end 23 t ereof out of engagement with the ratchet teeth 15. At thesa'm'e time the end 28 of the spring will bear downon the small end 23 of the pawl 21 and force it into engagement with the teeth '16. .This will lock the ratchet member 12 against rotation relative to the sleeve 17.

If therefore the spindle is pushed endwise by pressure on the handle 4 and the sleeve is held a 'ainst turnin the soindle will be rotated by the engagement of the rib 1 1v with its cooperating groove in the spindle. If the member 2 1- is pushed to the opposite extreme of its movement, justthe reverse operation will take place and the ratchet member 11 will be held againstrotation, and an end- 7 wise movement of the spindle will result the sleeve is threaded internally as at 29 and V in its" rotation in the opposite direction. If

however, the member 2% is moved to central or intermediate position, the spring will engage both pawls in a manner to press the small ends 23 thereof into the two ratchets 15 and 16, locking both ratchet members 11 and 12 and preventing any endwise 1novement of the spindle relative to the sleeve.

The open end of the enlarged portion of a threaded nut 30 is adapted to screw thereinto hold the ratchet and pawl members in assembled relation.

For the purpose of holding the sleeve against'turning when the spindle is rotated rapidly, and also for turning the sleeve and spindle when they are locked together, the

"following mechanism is provided. The outside of the sleeve 1'? 1s angular 111 form, for

examsle hexagonal. and a short sleeve or l. 7 in 1 collar 31 fits slidably thereover but is not rotatable thereon. This sleeve has a ratchet 32 and alever or handle 33 has an opening which fits rotatably over the sleeve 31, the

edge of the sleeve being turned over as shown;

and limit the moveniient of the V spindle and sleeve.

of the form shown in Figure i having down:

turned ends 41 to engage the handle member -1 in either direction. This member 40 carriesa stud member 41 through which the spring 38 passes, which stud is adapted to engage either of two notches 42 in the handle to hold the parts against accidental displacement. When the parts. are in the position shown in Figure 4, a movement of the lever 33 will cause the pawl 36 to turn the ratchet 32 and consequently the sleeve 17 whenrotated inone direction, but not in the other, the pawl teeth being so formed with relation to the ratchet teeth that they will slip over the ratchet on the reverse movement. the sleeve in the opposite direction the switch member 40 is moved to its other extreme to hold the detent. 41' in en a' ement with the corresponding depression. 7

l then it is desired to turn the spindlerapidl-y, the linger piece 24 is set to cause right or left hand-rotationas desired by engagement with the proper one of the ratchet If it is desired to rotate It will be noted that members 11 or'12. The handle 33 is em-q ployed to hold the sleeve 17 against rotation and pressure on the handle 4 will move the spindle endwise relative to the spindle and rotate the latter rapidly. When more force is desired than can be readily obtained in:

this manner, the finger piece 24 is set to lock both pawlsi-n engagement with the ratchet members 11 and 12 and therefore prevent any relative angular movement between the :handle' It will be therefore seen that we have provided a ratchet wrench or similar tool capa- Me of rapid operation ineither direction when there is a relatively small resistance to the turning movement, or can. be usedffor.

slower operation with great power when lngh resistance is encountered. It will be obvious that various details may be changed and some features of the invention used alone ortogether with varied forms of devices, and therefore the invention is to be The pawl 35 is set for vents its relative rotation with'respect tothe sleeve, and a narrow end whlch engages the regarded as limited only by the scope of the appended claims.

We claim as our invention:

1. A ratchet wrench or similar tool comprising a spindle having right and left hand spiral grooves thereon, a sleeve surrounding said spindle and having an enlarged portion,

two short sleeve like members each having an internal rib to engage one or the other of,

said grooves and each having a ratchet, two pawls Within the enlarged portion of the sleeve, each having a broad endwhich prewhereby relative longitudinal movement of the sleeve and spindle will produce rotation of the latter or whereby the spindle and sleeve may be locked against relative rota-- 4 tion in either direction, a collar having a ratchet slidably but non-rotatably mounted on the sleeve, a lever orhandle rotatable on the collar, and ajpawl carried by the lever which engages the ratchet to turn the latter and thereby the spindle.

3. -A ratchet wrench or similar tool comprising a spindle,.a sleeve thereon, means whereby the sleeve and spindle may be locked to rotate together in either direction at any desired longitudinal position of the same, a collar slidably but non-rotatably mounted on the sleeve, a'ratchet on saidcolla a lever or handle rotatable on said collar, a double pawl mounted on said lever, and means for holding eithertooth of the pawl in engagement withthe ratchet.

In testim'onywhereof, we have hereunto subscribed our names. Y

JOHN H. BEALE. LEO KINoH. v

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