US828884A - Double-acting ratchet. - Google Patents

Description

No. 828,884. PATENTED AUG. 21, 1906. E. HENRIKSON. DOUBLE `ACTING RA-TGHET.

APPLICATION FILED JAN.25, 1906.

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Specification "of Letters Patent. y Application filed January 25, 1905. I Serial No. 297,787,

Patented Anger.; 190e...

'TaaZLwtom/.it may concern:

Beit known that I EMANUEL HENRnrsoN,

a citizen of the United States, and a resident 'ofBridgeport, in the-county of Faireld'and State o f Uonnecticut, haveinvented certain new and luseful Improvementsin Double? Acting Ratchets, of which the following is a specification. o

This invention relates ,to new and useful improvementsl in ratchets, and is" designed` with special reference'v to'` use upon boring mills, planers, and other machine-tools.

The feed-shafts of'machine-tools of the above class frequently require a' slight vmovement for 4'the fine setting of adjustment of the'tool.

This has heretofore been vaccomplished in many instances by a* detachable hand-crank applied tothe end of the-shaft, which was inconvenient and otherwise objectionable.

:It is therefore the 4purpose of my inven- .tion to provide an improved double-acting ratchet for making the several slight adjustments of the tool 'required at times; to design it as a-iixed attachment to the feedshafts of the machine and adjacent to the saddle, thus convenient lto the operator; to construct it'as a lever-operating' device adapted for'engagement to operate in both a forward and backward 'direction and Ihav- 'ing a normal intermediate disconnected position, which the tool-*automatically assumes when released.

`.Upon the accompanying drawings, forming afpart of this specification, similar characters o reference denote like or corresponding lparts throughout the several figures, and of Whichv `Figure 1 shows a perspective view of the face and end of a portion of a cross-rail and saddle of a boring-mill with` a pair of my improved ratchets 'attached to the feedf shafts and saddle. Fig. 2 shows, on an enlargedscaIe, a side elevationof my ratchet disconnected. Fig. 3 is a central longitudinal section' through the ratchet' and taken on line 3 3. ofFig. 3. Fig.- 4 is a horizontal section .of the ratchet, taken on line 4 4 of Fig. 3, the operating-leveyho'wever, being shown in an engaged position and the sleeve containing a square hole instead of `a round, as se'en in F1 s. 2 and-3. l V v eferring in detail to the characters of rin erence marked u on'the'drawings, 1A

cates a portion o a cross-rail'such asis commonly used on boring-mills.

dl'eslidably mounted uponi-,hel-ail'.

C designates, a threadedfeed'- in any wel -known or preferredmanner,

yB represents-the-near sideportionlof a lsadl haftwhich l engages and o cratesl the saddle 4'al'ongf vthe rai and D is a feed-shaft Whichlconnects-'with andoperates the tool-head.` (Not shown.) Both of theseshafts are commonly used upon boring-mills, planers, and other.Inac'hinel -toolsand are driven through gear comico-- viously constitute no part of my invention. X 1

The' ratchet- 'proper comprises an annular sleeve c; which maybe provided-with either. a keyway b for attachment to a'shaft, as seen iii-Fig. 3,v or'may contain ,a shoulderedhole c, as seen'in Fig. 4.- The former construction is vobviously best adaptedforwround'L shafts, such as are'shown in Fig. lgjwhile the 1 i other design isespecially adapted for squaredy l By this or an equivalentmeans the;

shafts. sleeve may be slidably attached tol'fa shaft,

is driven, lbut likewise adapted Vto .turn the shaft through the 4operation of thelconne'ctannular shoulder upon the sleeve,"intermedij.. ate 'of which and an yattached" collar :;.e

bracket f ofthe saddle B is engaged to.voon''f 85 1 l neet the ratchet and saddle and insure alon-v gitudinal movement 'of 'the ratchet with .the

-saddle.- The'sleeve further 'contains'aseries of teeth 1 upon its periphery for engagement,v

by the correspondinglyLtoo'thedi 'end of the P u 90 nger g'slidably 'mountedin a pocketh of, an arm ,'journaledupon' the sleevea and intermediate Aof its shoulder d and a'nouter'colfV lar y', threadably attached thereto, as is clearly-shown inFigJB. y The plunger is mounted in the Aarm radially-with respect to theaxis of thezfsleeve, and consequentl has a direct -movement and grip upon t e` toothed peripheral surf` sponding convex end to normally rest `in said thus freely turning therewith when the shaft i -Soi ing members'of the' ratchet.' d indicatesanfi IOO IlO

6&5, tions inclosed withinthe casing andV obl recessottheplunger, While the transverse side slfoulders's engage the shoulders o of the said plunger. From the foregoing construction 'it W1l.lf,'l:3eseen that the actionv of the spring upon the plunger not only serves to normally hold it disengaged from the sleeve but also to hold its ends tight against both shoulders s of. the-lever, thus normally retaining the leverin an intermediate p osition ro straight in line with thear'm and movements of the plunger. This normal position of the parts leaves the' sleeve disengagedand free to turn' with the `o 4erati'ng movementsoiI the .shaft upon Whic it is mounted,'but always.

` in position to bel quickly operated by hand+ as, for instance,in the settin of thetool yWhile the shafts are at rest an preparatory to 'beginning-'Works vThis construction e'rmits of a movement of the sleeve and s aft zo in either direction by simpl operating the lever ffcorresp'ondingly,. "L ein apparent that if the lever be thrust upwar as seen in full lines inxFi L4, the upper shoulders are engaged`and t e plunger operated a ainst the action of the spring to engage .an turn the sleeve in a'forwarddirection, While if it be similarly pressed inthe oppositedirec- .tion (see dotted line, Fig.` 4) the plunger is similarly operated to engage the'sleeve, but

-3o turning it in the opposite direction.

This

. construction therefore forms a double-acting ratchet with an automatic release, comprising plunger, spring, and lever.

I t 'will of course be apparent tol those v y skilled-inthe art that my invention isv equally quently I do not wish'to be applicable to many other uses than that to which I have shown it ap lied, -and'conse limited in that respect. t, Having thus described my invention, what I claim, ancldesire` to secure by Letters Pat' ent, is-

1. Ina ratchet of the class described, the combination of a sleeve, an arm pivoted 'pivoted in the arm havinr principallybesid es the sleeve, a singlethereon, a spring-actuated plunger/mounted therein to engage the sleeve, a lever pivoted in the arm havin(1r shoulders engaged by the lun er to norma l ret-ain the lever in an inl) g Y -termediateposition and adapted to operate the plunger by either a forward or backward j movementot1 the lever.

2 In a ratchet of the class described, 'the combination `with a sleeve having a` toothed or backward' shoulders engaged bythe plungerto normacllyl retain. the leverj in an intermediate position yand 'adapted' t0 operate the plunger a ainst the actionof its spring by either a Iorward or backward movement of itslever.l

` 4. In a ratchet of the class described, the combination with va sleeveadaptedfor engagement with ashaft, of an arm 'ivoted upon the sleeve-having a longitudina socket therein, a lunger mounted'in ythe socket and having a ivided head forming o positely-located shoulders, a lever pivote in the varm vand having shoulders to registerwith those of the head of the lungerand a spring to@ shoulders engaged.

Signed at Bridgeport, in the county of Fairfield and State of Connecticut, th's 15th day of Janua'y,'A. D. 1906. I z ,EMANUEL HENRIKSON.

Witnesses:

C. M. NEWMAN,

RUTH RAYMOND.

normally hold the p unger distended andthe

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