US1781875A - Pickling tongs - Google Patents

Description

Nov. 18, 1930a l R Q HQPKlNs I 1,781,875

l PICKLING ToNGs Filed June 22, 1929 2 sheets-sheet 1 H. ThE/alims I Nov. 1s, 1930. R. c. HOPKINS 1,781,875

PICKLING TONGS Filed June 22, 1929 2 sheets-sheet 2 2o 20 50 Z 52 v /Z NM4 14W 31 E I E I I wuemtoz I7 l 1,9

`Patented Nov. 18, `1930 RQBERT el norxins, onlinr-,miren oHIo l Appiic'atrionlia Jane 22,

vThe invention relates to tongs for handling bars or forgiiigs such as automobile axles and the like and is particularlyV adapted for thequick handling of such articles for pickfv ling and the like.

The object of the improvement is toY provide tongs which will quickly and economi- Y Vcally handle bars and the like duringkrthe pickling operation. Y Y.

The above and other objectsmay be at,-

taiiied by providing a supporting ,frame having the jaws hingedly Vcoiiiiectedto each end thereof, Atoggle joints being provided fory automatically locking the jaws in closed positrated in the accoinpaying` drawings, in

whichtion preparatory to `picking up a load of bars or the like; 7 Y

v Fig. 2,*a similar viewvsliowing the jaws in closed position with the load carried thereby; Fig. 3, atop plan view of the tongs; Y Fig. 4, a side elevation of the tongs; and Fig. 5, a fragmentary plan view of the co-` operating eiids of twojaws. f

Similar numerals` refer to similar parts throughout the drawings. v

The supportingfraiiie is of substantially H shape in plan and comprises the central bar portion 10V and the end portions or ceiiteisto Vthe ends of the Vbar Upright Y ears 12 may be formed at the center of the bar portion 10 for the connection of an eye i 13 by means of which the tongs may be raised end as'at 15 for pivotal connection to the endportion ofthe armas by the pin 16..

The lower end portionof eachjaw is turned vinward as at 17 andthe freek endport-ions" thereof are offset, in opposite directions, as',`

at 18 so that the ends'of each adjacent pair frame;

tion, and means being provided for` releasing yFigure l is. an end' elveation of the imf proved tongs, showingthe `jaws 1n open po's1.

spaced, parallel arms 11 lconnected at their 19,279; fseeriaif fevaese.` lo ad.

iif."loggle'links* are c onneetedfto the Aupper endsof,the'bifurcated.portions 15'of tliejavvs .and comprise the links 20V pivoteda's at 21 betweenjthe `bifurcations and .thelinks 22' jaws ofi-each Apair lobe placed beneath the77V PATENTOFFICE@,f-

vpivotedas at'23-to the 4links 20fafnd=as at 24 Y vof each arm 11 fof' the supporting .Adepending-stud fixed upon tli'efree' ltoan upright ear 25 'formed at the` central portion,

endiof each link-22 andadaptedfto contact alt l opposite ends: lin' ears. 29 "Jforniedupoii the .arms 11 of thesupportingframe.

' upper endgwith an eye 311 wherebyahooked rodl may e inserted therein foioperatingjthe rlockershafts. Y .l u

In order that both rocker 'shafts'inay be operated 'in unison, a' link `82may be pivot-` ally connected atgopposite ends the arms 34 uponjtlie shafts 28.V A

In operation the axles or other articlesto be pickled, as shown at-A, are loadediipoii a horse. or the like indicated gfgeiieii'ally` at B with aV shortrocker arm 27 niountedhuponthe Y 'adjacent' end'offarockerlshaft 28 journaled j fesf inrFigl` and the j aws-of the tongs are opened tothe 'positionv indicated; in said iigure The tongs are thenlowered to the .position shown 'in Fig;v 1 and the jaws are closedby simply pushing them together tothe position Vshown in Fig. 2 at Vwhich .time thev pivots 23 .of the rtoggle levers will pass belowdead'eeii-` ter, locking the jaws in -tlie closed position with the load therein. f

The load .is then taken to the pickle: tank' where it is pickled and then to tlierinsiiig tank'where it is washedand thesuiiloading is accomplished by pulling one 'offthe levers V in the i Y Fig. 2. This maybe thel saine raisingthe pivotal :pointsv 23 of the toggles above dead center by means ofthe rocker. arms 27 contacting with 'the studs 26.

directionfof the arrow'v sbowii'inj f y l accomplished by a long hooked 'rod ysimilar to a' pokerwhichniayV beinsertf :edinto oneof the eyes 31, a slight. pull upon of jaws may overlap as at 19, permitting both As soon as these toggles pass over. dead center E100 u pair ot jaws hinged upon saidrlrame, toggle levers connected to the jaws tor antomati'' Tao the'jaws will be released and the load deposited wherever desired.

Although these tongs are especially adapted for use in pickling, it will be understood that they may be used for various purposes where it is desired to quickly pick np or deposit a load. l/Vherethey are to be used forV pickling, all of theparts should'bemade of acid resisting bronze or the like. j j,

I claim: y

l. Tongs including a supporting'frame, a

cally locking the aws in closedkposition, and

a rocker shaft for releasingth'e jawsto per? mit them .to open. 2. Tongs including a.

supporting frame, a

pair of aws hinged upon said frame, toggle links connected tothe jaws and arranged to pass beyond dead center i'orantomatically 'locking-the jaws in closed position, and a rocker shaft for moving thetoggle links over dead center to permit-the j awsto open.

3. Tongs including la supporting frame having spaced, parallel arms, a jawhinged -to each end of each arm', toggle links connected. to the jaws for automaticallylocking the jaws in closed positiomand a rocker shalt :for releasing the jaws topermit them to'op-en;

4^. Tongs including ai supporting 'frame having spaced,gparallel arms, a jaw hinged to each end of each arm, a pair of toggle linksY ,connected to each Vj aw and to the frame, and

'arranged to pass beyond dead center oiautomatically lockingthe, jaws in closed position, and a rocker shaft for moving the toggle links over dead centerto permit the jaws to open. Y

5. Tongs including a supporting frame `having spaced, parallel arms, a jaw hinged to each end of each arm, a pair of toggle links connected to each jaw and to theframe, and arranged to pass beyond dead center for automatically locking the jaws in closed position, a rocker shaft for moving the toggle links on each side over deadcenter to permit the jaws to open, and means Jfor simultaneously operating both rockershafts,

6. Tongs including a supporting ranie,'a pair of j aws hinged upon the frame, a toggle link pivotally connected at one end to each jaw, a second toggle link pivotally connected at one end to the other end of theviirst toggle link and pivotally connected atits other end to the trame, the pivotal connection between each pair ot' toggle links being'arranged to pass beyond dead center orautomatically locking the jaws in closed position, and a rocker shaft for moving the pivotal connection between each pair of toggle links over dead center for permitting thejaws to open.

7. Tongs including a supporting frame, a

pair of jaws hinged upon the frame, a toggle link pivotally connected at one end to each ed at one end to the other vrend ot the tir-st toggle link and pivotally connected at its other end to the trame, the pivotal con ection between 'each pair of toggle linksl being arranged to pass beyond dead center for antomatically locking the jaws in closed posi`v tion, a rocker shaft for moving the pivotal connection between each Apair of toggle links ing both rocker vsh ats.

In testimony that I claim the above, l have hereunto subscribed my name.

ROBERT C. Hfllhlr! v over dead center for permitting the jaws to open, and means. for.simultaneously operat-

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