US895842A - Cotter. - Google Patents

Description

No'. 895,812. PATBNTED AUG. 11, 1908.

Y c. CHAMBERS, JB..

CUTTER.

APPLIOATI'ON Hmm 151111.27, 190e.

l TTOHNE.

wir/fesses:V Imran l a citizen of the- United new andnsefulCotter, of which re'ady in place of-solid l:

' sTArns PATENT -Jonricn.

n cYRUs onAi/iBERs, JR., or OVERBROOK, PENNSYLVANIA.'

co'r'rnn.

V Neissa-842. i

' To all whom' it may concern.`

Be it known 'that'L CYRUs CHAMBERS, Jr., States, residing at Overbrookfin the' county of Montgomery and State of Pennsylvania, have invented a is' a specification. v

My invention relates to improvements in 'cotters 1 The object ofv this invention is to= provide a place the Working parts'of machinery.

' "v improved-Cotter is' adapted to be used pinsJ split pins, linchpins, jam nuts and the like. A

The ordinary split pin or cotter pin is frequently objectionable for one or more of the Ytions of vio elevation with a different *mechanism Fig. -12 is' i same. Figs. 13, 14, 15

intothe hole prep *following reasons; because of the very lime ited :amount of wearingwsnrface.exposed to the moving' parts, because of the lliability to rust fast and become racticably'immovable, because of the difliculty'and expense of drillinglthe stud or vshaft centrally and in line withthe face ofthe cause of the dilicult of enterlng the' cotter e ared therefor, and the liability of its Working` out unless the s 'lit end is spread. 0pen,' in wl 1ich case itis di cult to .The 'urpo'se of my inventionis to obviate all offt e- -above recited objections'.

` 'gnre 1 is Referring to the drawin "sz`fF fr ont elevation of one form of -my cotter.` Fig. 2 -.-1 `s a side "elevation of sameg-Fig: 3

is a front elevation lofa cotterwith asso-- Y ig. 41s' a side elevation"- Figs.` 5, 6,-'7 and 8 arefront elevaciated mechanism. l' .of same.

m'odied forms .of cottrs.. Fig-9 is a front elevation of the' 8 With'associated mechanism. v4Fig,' 10 is a side elevation of san'ie.- Fig. 11 `is "a, front a side'` elevation of forms of cross-section '.of'rnetal from.-Which` the cotter mayy b made. 1 17 isa front elevation of a cotter in conn'ectlonwith a n'ut.

Fig. 18 is aside elevation ofsarne.y Fig. 19

is a section on line ofFignl'? 4 Siinilarnumeralsrefer to' :similarlvparts The simplest form ofmycotteris shownlin i Figs. 1, 2;, 3 and 4, having a bowed portion-21 "at the top and oppositely'-'disposed sym-` 4.

:metrical cur'vedfportions` 22,L for, embracing and clampingtliestud.. .The Haring ends'23 Specification of Letters Patent. application filed September 27,l 1906. i Serial No. 336,445.

the' following .and economical meansfor securing in Working partsand becotte'r'shown in Fig; v'

form of' associatedI and 16 'are'diiiierent- Patented Aug. 1'1, 190s.

the cotter over the stud". The cotter is made preferably of spring metal of any c' form of cross-section, that is, it may'be made of round Wire as shown in crosssection in Fig. 13, round wire flattened as shown' in cross section in Fig. 14, square wire as shownv in Fig.`f15 or narrow strips of sheet metalr cut .Wider than-the thickness of same, as' shown in'Figml".

I' turn' an annular groove or channel in the sufficiently Wide to ad-i'nit of the Width of the wire of which the cotter is-made, and of such depth as to' give a good shoulder' to retain -the open co'tterv in lacehor of suchdiameter tight aro-und the neck thereof. The bow 21 'and the ends 234 of the cotter project beyond `the `groeve to maintain the moving parts of the machinery, such as a Wheel or friction roller'26', connecting rod 27, or nut 28, in the required relative position.

or members thereof shall' be true arcs when side extension or member thereof bent to conform to an arc concentricwith the arcs of the interior members, and embracing'say three'fourths of the complete circle thereof,

'connected by. return bends, wherebythe Whole is allowed to o'ccupy but little room .around the y,s

face' thereof lyet 'allowing great .resiliency for the spiri11 3'ing of the cotter yovert1e' 'neck Aof .vor bolt .so as' to I'esistency of the same vto. 'come nii. 'In cases I ,I nale a spring cotte'rofsquare or wire'whose thicknessis-'less than the are provided for convenience in springingo-nvenient stud, axle or bolt 24, as the case may be,

vthat the cotter spring on it' and close- 4the stud-'orf` bolt. lSon'ietimes it is 'desirable 1 to have a Wheel or nutfseoure'd'on `tlle 'stud great force' in' the `tend-' -suchj 'wiref' width t thereof, 4or in other Wordsbent 4'edgew1se, so 100 that, when a' groove isturne'd in'the'stud or;

h e Wire, thus'permit- V ting one half t lock itself in. the .groovevand n the construction shown in Fig. 11, the bow is so formed that the `interior extensions sprung to the proper. diameterg and an outthe said concentric extensions or members Y tud or bolt, or'be'yond ythe surr -sh'earedi .throughout fthe whole-'length' emd or '.bplt before'llovv -1n- Vsection rejectingv to ferm a' L05 t er'ornntfrom com-' 1' Figi l17 Infa construction .of'

The various forms of the bow of the Cotter. are to adaptfthe device to various require-1 ments, lthose requiring more resiliency are formed with the greater number of coils or folds, varlying in length to suit the situation.

What

' means for maintaining the' Cotter in position on the shaft. v 3f. The Combination of a Cotter, and a shaft provided with an annular channel, the

Cotter formed with oppositely Cirved embracing extensions, and angintermediate resilient bow, the embracing extensions adapt-- ed to seat in the annular Channel'as the sole means for engaging the Cotter with the shaft.

4. A Cotter consisting of a single strip of metal, includingin its extension arcs of. substantially the same circle, and a resilient bow. intermediate two arcs, in Combination with a shaft having an annul-ar channel for receiving said arc portions, the resilient co' o eration of the arcs in the channel being t e sole-means for securing the Cotter to the 5. In vcombination withl a lshaft provided with an annular channel, a Cotter consisting ofa single strip of metal formedwith portions of its extension in arcs of substantially the same Circle, with a spring bow therebetween, the arc extensions adapted to seat `in the annular channel, as the sole means for slons havlng a transverse dimension -greater than the depth 'Pof the channel.

6. A spring.cotter, provided with a curved extenslon or surface, and acoperatlii oppositely disposed extension to form a c amp n l therewith, spring means for connecting said'A two extensions, Comprising resilient extensions lying in concentric arcs,

, 7. A spring Cotter, provided with embracing extensions 'andgan intermediate bow so engaging .Cotter with shaft, said arc exteni formed that the interior members thereof- I I shall be in arcs of true circles when sprung tothe proper diameter, and an outside member thereof in 'the arc ofa concentric circle embracing approximately lthreequarters -of the circumferencethereof, whereby the whole is allowed to occupy but little space around the stud or'bolt, or beyond the `surface thereof, yet 'allowing`\great elasticity v for the springing of the Cotter over the neck 4of the stud or bolt.

cYRUs CHAMBERS, JR.

Witnesses: lv

MAE HoriMANN,

HowARD. S. OxIE.

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