US1091071A - Stop mechanism. - Google Patents

Description

B. F. MAYO.

STOP MECHANISM.

Patented Mar. 24,1914

APPLIOATION FILED NOV. 7, 1902.

Wrrwassas \NVENTOR B. F. MAYO.

bTOP MECHANISM.

APPLICATION FILED NOV 1, 1902.

1,091,071. Patented Mar. 24, 19m

4 SHEETS-$31531 2.

L 1 6371 (H O 0" All. 0' 0 .5 a"

WITNESSES INVENTOR B. F. MAYO.

STOP MECHANISM.

APPLICATION FILED NOV. 7, 1.902.

1,091,071, Patented Mar. 24, 19m

4 SHEETS-SHEET 3.

B. P. MAYO. STOP MECHANISM. APPLICATION FILED NOV. 7, 1902. 1,091,07 1. Patented Mar. 24, 19m

4 SHEETS-*SHEET 4.

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UNITED STATES PATENT carton.-

BENJAMIN F. MAYO, 0F SALEM, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION .OF NEW JERSEY.

LQSPLUTI.

.Salem, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Stop Mechauisms; and I do hereby declare. the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The, present invention relates to an improved stop mechanism particularly designed for use in connection with sole rounding machines but which is also capable of use in other relations. The object of the invention is to improve the. construction, arrangement and mode of operation of the various parts of stop mechanisms and more particularly of stop I mechanisms of that type which, when 'applied to a sole rounding machine, are adapt-- ed to allow a relative movement ofthe pattern and rounding lc'nife due-t themornentum of the various operating", parts of the H machine after the ,.driving shaft has'been .lisconnected fromthe source of power andto thereafterreturn' thewpattern and knife to .JIO'I'IHQLyPQSltiQHi. i

flhnovel features of qhanisnr:consist in the improved mecharounding machine'of a type well known. in

the art. 1

Referring to the drawings, Figurel is a view in side elevation ofa preferred form ofimy improved stop mechanism, 'a portion aepn'lypfthe rotary'support for the knife carcar:

llBl-QiOf the sole rounding mechanism being shown; Fig. 2 is a plan view of the mechanism illustrated in Fig. 1; Fig. 3 is a longii L i Specification of Letters Patent.

my improved stop STOP MECHANISM.

Patented Mar. 24, 1914.

Application filed November 7, 1902. 7 Serial No. 130,385.

tudinal sectional view on the line 33 of illustrated in Figs. 1 and 2 looking from the left, the rotary support being omitted, Fig

2; F ig 6 is a plan view of a lever forming a portion of' the mechanism for stopping detail View in side elevation of one end of 'tion which allows a forward movement of ing shaft when the driving shaft is stopped "and which returns the rotary support to its .normal positlon with relation to. the driving the beveled gear by which the rotary support is driven from the driving shaft; Fig. "10 is an end view of the collar secured to the driving shaft which engages the beveled gear illustrated in Fig. 9; Fig.' 11 is a view elevation of a stationary cam disk forming Figs. 15 and16, are views in plan and side which holds the mechanism for moving the ping the rotation of the driving shaft is operated. Referring to the drawings a, designates a driving shaft journaled in a bracket a secured to the frame of the machine. On one end of thedriving shaft is mounted asibeveled gear 6' which meshes with beveled gear table of the sole rounding machine upon which the knifecarrier is supported. The beveled gear 6 is connected to the driving shaft to the rotary support, the-connection to-the shaft. This independent movement of'the beveled gear allows the rotary su andstarting the driving shaft; Fig. 7 is a in side elevation, and Fig. 12'is a view in end elevation of the trip which the latch shaft so as to transmit the movement of thebeing'such that the gear is allowed to rotatethrough' a part of a revolution after the driving shaft is brought to rest and is then returned to its normal position withrelation 105 the rotary support independent of the driv shaft; Fig. 8 is a detail sectional view. on the line 88 of Fig.7; Fig. 9 is an end .view of clutch members out of engagement and stop- Fig. 2; Fig. 4 IS a viewof the mechanism I 5 is a sectional view on the line 55 of Fig.

the driving shaft illustratingthe construc- I a portion of the mechanism for moving vthe clutch members out of engagement; .Fig; .13 is'a view in side elevation, and Fig. 14' is .a View in end elevation 'of a disk also form-- ing a portion of the mechanism for moving the clutch'members out of engagement; and

teeth 0 formed upon the lower surface of the I 1 port to move. far enough to carry the r'oun it is loosely mounted upon the shaftand con, n'cc-ted therewith'by means of a .clutch pro.-

jection I) on its hub which is engaged by a clutch projection J on a block or collar d pin'ncdtothe shaft. The beveled gear I) is thus caused to rotate with the shaft by the engagement of the clutch projections and is allowed to'rotate in lepcnjdentl of the shaft in thedirection in which it is iilr'ven through a portion otai'evolution. A split collar 0 is clamped upon the block cl and isconnected .to the gear b by means of-a'spring fcoiled' around thebh .1; (0 and the hub of the gear. ()uo end of the spring f is received in a recess 71" in the hub of the gear I) and the other. end received in arecess 'e' in the collar e. By adjusting the collar e circunfierciitially around theblo'ck (I the-tension of the spring can.be adjusted asdcsired. -\Vhen the'gear I)" is rotated. by the continued: movement of. the rotary support after the driving shaft has been stopped the -spring.f returns the rotary support and the gem. to theirano'rmal position. The arran-gemcntfof the spring f and the clutch projections on the'hub of the geai.' hand on the block rZ allows a consid-l arablerange of movement-to the rotary support-,-ai terthe driving shaft has. beenst'opped. In order-to cushion the blow Which the ,elutch projection b delivers tothe clutch memberrl when tliebdv hledgear b-is returned to, normal position .bythe spring the adjacent-surfaces of the clutch projet? tions are curved as illustrated-in Fi s. 8,9 and 10 and a series (it"fiat spring plates 03 is interposed between these surfaces.'- The ends'of theseiplatescxteud into 'a recess (Z? in theblock "(l and. are: held in position by means of a pin (1 seated in the block (land passing through holes'i'n the plates.

.7 The driving shaft is rotated by means of a driving pulley g. loosely. mounted upon a sleeve g which. loosely mounteduponthe hub of a wheel or disk h secured to the shafh The pulley g and wheelh are provided with clutch membersby which the 'rotation'of the pulley r is transmitted to the wheel l1, and to the driving shaft. The'sl'eeve g is mount-1 .1 ed to move longitudinally of the shaft a and the-pulley is caused to move with the sleeve by means of afla'ngeg on the sleeteavvhich bears against one endof the hub of the "pill ley and by means of a-flange on the block a mounted to slide longitudinally on the shaft a which flange bears against the'foth'erie'nd of the hub of the pulley and against theiend tation of the drivin 0t the sleeve 9.

of the sleeve g. The sleeveg' is moved to bring the clutch member's on the pulley g and shaft h into engagement by means of a coiled spring j interposed between the flange of the block 5 and a block is pinned to the driving shaft.

For moving the sleeve 9 in a direction to disengage the clutch members on the pulley' g and wheel h and for stopping the roshaft, spring-actuated mechanism is provi ed which is held out of operation by means ofa latch and'which is thrown into operation by means of a trip actuatedfrom the drivin shaft which contacts with the latch. This mechanism may.

e described as follows :'-Mounted in a recess in the hub of the wheel I are two disks Z and m, both disks being free to move longitudinally of'the shaft. The disk Z, shown separately in Figs. 13 and 14, is provided with two pins l' which pass throu h holes in the wheel h. and bear against the ange g A lever n is pivotally mounted upon a projecting bushing a which forms one of the bearings for the shaft a,

In the hub of this lever two pins n'nre loosely mounted upon diametrically opposite sides of the driving shaft. At one end these pins bear against cam surfaces formed upon a disk. or collar n clamped upon the bushing a and at the other end bear'a'gainst the disk m. The arrangement of the pins n" and the cam surfaces-of the disk n are such that a movement of the lever n in one direction forces thepins against the disk at and-thereby. moves the disks m and l in a direction to actuate the sleeve g to disconmeet the clutchmembers on the pulley g and .wheel' h 'whilea return movement of theleverallows the spring 7' to move the sleeve g in audirection to bring the clutch members on the pulley g and wheel into engagement,

.It will he noted that the means for moving the pulley gin both directions act upon the sleeve g"; The-pulley is thus allowed to rotate freely upon the sleeve 9' when the clutch membersv are disconnected, the sleeve being held stationary by the frictional enga'gement' therewith of the pins 1' and block 6.

member h with which two braking shoes h are arranged. to cooperate to stop the rotation of the driving shaft when the clutch members. on the pulley g and wheel in are disengaged. These bra-king shoes. are se- .115 r The wheel I is provided with a braking cured to arms h pivotally mounted on opposite sides of the driving shaft and are con-- nectedby links h to the hub of-the lever n", the pivotal connection between the links and the hub of the lever bein formed by the pins n'- which passthroug the links. The arrangement of the arms hmid the links h. is such that the brake shoes h are brought into contact with the braking member h" when the lever n .is moved in a direction to disengage the clutch members. The lGVBI' Il is moved in a direction to disconnect the clutch members and tobring the bIdhQSllOQS into contact with the braking member by means of a spring 0 coiled around a rock shaft 0 journaled in the bracketaf One end of this spring issecured to-ablock fast on the rock shaft 0' and the other end is secured to a disk 0 loosely mounted upon the rock. shaft and held from rotation by,

means of a pin of seated in the hracket u. and extending into one of a series of holes in the disk. The pin 0" and the disk 0 serve as a em vcnient means for adjusting the tension of the spring a. Thevblock 0 is eonnected by means of a link 0 to one end of the lever mthe arrangement being such that a rotation of the shaft 0, by the spring 0 moves the lever n in a direction to-disengage the clutch members and bring the brake shoes into contact with the braking member. The lever n is held inthe position to which it is moved to connect, the. clutch members and move the brake shoes out of contact with the braking members by means of a latch p pivotally mounted upon the lever n and arranged to engage afixed'stop p. The latch 12 is actuated to release thelever by means of a trip 1' carried by the rotary support for' the knife carrier-which as the rotary support completes its revolution engages the end of a levers secured to a pin 6: journaled in the bracket (1, a pins projecting laterally fromthelower end of the pin 8' contacting with the latch pwhen the lever s is actuated by the'tripand moving the latch out of engagement with the stop ;0.

A stop pin 8 projecting between two laterally extending arms ofthe lever s serves to limit the movement of the levers in both directions. The latch .79- is connected by means of a link p to a' lever p pivotally mounted uponthe lever n and provided with an arm p integral therewith' extending be;

neat-h the end of the lever n in convenient position to be grasped by the handvoflthe operator.

pring connects the lever ptwith th p of theleve'r p and serves to hold the'lev'er p abovethe surface of the lever n. When the lever n is moved by the operajzor in a. di-

rection to remove the brake shoes-from the braking member h and" allow the clutch members to move intoengagemenhthe lever.

79 is pressed down by the hand ofthe oper ator and the latch p is yieldingly pressed toward the stop p by the action of thekslp'ring 35 on the arm 2. The tripjr which c The latch'p can thus be movedout of engagement with the stop p by the 'tacts which the knife carrier is mounted and clamped therein in any desired position. T he trip r is normally held in position to contact 'with the lever s by means of'a spring r -and is so mounted that it isheldrigidly from movement when it contactswith the lever .9 during the forward movement of the rotary support but is allowed to yield in case the return movement of the rotary support is suilicient to bring it again into contact with the lever.

In. the operation of the stop mechanism above describedyit will be noted that the. driving shaft rotates in one direction only the means which idlowshthe forward movement/of the mechanism driven by the'driving shaft after the shaft has been disconnected from the source'of power-and. which imparts a return movement to said mechanism being arranged'to act on said mechan'ism withoutimparting a return movement to the driving shaft. So far as I am advised of the state of the art, in all stop mechanisms of this type which have heretofore been devised, the means for imparting a return'movement to the mechanism driven by the mechanismdriven by the-driving shaft:

sofas to act on said mechanism without imparting a rturnmovem-entto the driving shaft, a greater forwa dand return movement can be imparted 0 said mechanism than has heretofore been possible: v It will also-be noted that the trip which is ates t o release the mechanism for separating with the lever s is pivotally mounted upon driven from the driving shaft merely operthe clutch members and moving the brake shoesinto contact with the braking member and is not utilized to actuate such mecha- [nism. The continued movement of the trip,

therefore, after the driving shaft has been stopped does not tend tov stop the continued 7 rotation of the rotary support and conse quently a greater forward and "return movement is imparted to the rotary support than would be the case if the trip were utilized to actuate the mechanism for disconnecting the clutch members and stopping therotation of the shaft.

., The operat10n of the stop mechanism will be readily understood from" the preceding,

" description and a separate description thereof is deemed unnecessary.

Having thus indicated the, nature and scope of my nvention and having specifirally" described a preferred form thereof, I

claimas new and desire to secure by Letters Patentsp '1'. A stop mechan1sm,'hav1ng III' ifsJTlibtlltl:

tion, a shaft, means for actuating said shaft, means for connecting and disconnecting said 'sha'ftand its actuating means and stop ping said shaft mechanism driven by said shaft, and a spring connection between said shaft'a'nd said mechanism arranged to allow an independent substantial forward move- .mcnt-of said mechanism and to impart a return movement thereto after said shaft is stopped, substantially as described. 2. A stop mechanism, having, in combination, a shaft, means for actuat ng said shaft, -means for connectmg'and disconnect-mg said shaft and its actuating means, a gear driven by; said shaft, means for imparting a positive forward movement-ta said gear from the shaft, and'a spring connection between said shaft and said geanarrangedto allow .an independent substantial forward movemm of the gear and to 'impart a. return means for actuating said shaft, and means acting automatically to disconnect said shaft from its 'actiiating means and stop the rotation of said shaft, substantially as described, '4. A stop mechanism, having, in combination, ashaft, mechanism driven by said ,shaft a spring connection between said shaft; and said mechanism arranged to allow an independent forward-movement of saidmechanism and to. impart a' return" movement thereto, an independent cushion dcvic'e' for-stopping the return movement of 1 said mechanism, means for actuatin .said

shaft, and means acting automatica 1y to disconnect, said shaft from itsactuating means andstop the-rotation of said shaft, substantially as described.-

5. A stop inechanism,'havin'g, in combination, a shaft, a-gear loosely mounted upon said shaft provided witha clutch projection, a collar secured to said shaft provided with; a cotiperating clutch projection, a

cushion device interposed between saidproections, a spring connecting sa d shaft and gear, means forjactuatmg said shaft, and

. means acting automatically to disconnect said-shaft from its-actuating'means and stop .the'rotation of -said shaft, substantially as described.

'6. A stop mechanism, having, in combination. a shaft, means for actuating the same, mechanism driven by said shaft, a spring connection between said shaft and said mechanism arranged to 'allow a substantial forward movement of said mechanism with relation to said shaft after the shaft is -stopped and to impart a returnmovcment thereto, and means acting automatically to disconnect said shaft from its actuating meansand stop the rotation of said shaft, substantially as described.

7. A stop mechanism, having, in combina-- tion, a shaft, means for actuating the same, spring-actuated mechanism for disconnecting said shaft from its actuating means and stopping the rotation of said shaft, a latch for said mechanism, a trip actuated by said shaft arranged tmactuatc said latch and release said mechanism, mechanism driven by said shaft and a spring arranged to allow a substantial forward movement of said mechanism' independent of the shaftand to impart a return movement thereto, substantially as described' I 8, A stop mechanism, having, in'combination, a shaft, a braking member driven by said shaft, a brake, means for actuating said shaft comprising relatively movable clutch members, springactuated mechanism for separating said clutch members and applying said brake to said braking member,- a latch for said mechanism, a trip actuated by said shaft, arranged to actuate said latch and release said mechanism, mechanism driven by said shaft and a'spring arranged to allow a-forward movement of said mechanism and to impart a return movement thereto, substantiallv as described.

9. A stop mechanism. having,in combination, a-shaft, means for actuating the same comprising clutch members movable toward and from each other a, brake and mechanism thrown into operation. by the shaft for separating said clutch members and applying said brake comprising a lever mounted concentrically with said shaft, pins mounted to slide in said lever, a cam engag ing said pins and connections between said pins and said clutch members, substantially assdescribed.

10, 'A stop mechanism, having, m combination. a shaft, a clutch member secured to said shaft, a-brake a sleeve, a clutch member mounted loosely upon said sleeve. a disk driven by said first-mentioned clutch member provided with pins bearing against said sleeve, and mechanism thrown into operation-by the shaft for actuating said disk to movesaid sleeve in a direction to separate said clutch members and for applying said brake, substantially as described.

11. A stop mechanism, havingviu combination, admit, a clutch member secured in said sliaft, a brake, a sleeve, a lutch mean ber' mounted loosely upon said sleeve. :1 disk driven by said first-mentioned clutch n'fembc'r provided with pins bearing against .said sleeve, mechanism thrown into operation by .the shaft .for actuating said disk to move said sleeve in a direction to separate said clutch members, and for applying said brake comprising a lever mounted concentrically with said shaft, pins mounted to slide in said lever, and a cam engaging said nation, a shaft rotating in one direction only, means for stopping said shaft, mechanism driven by said shaft, and means for allowing an independent substantial forward movement of said mechanism and for imparting a return movement thereto after said shaft is stopped, substantially as described. V

14. A stop mechanism, having, in combination. a shaft, mechanism driven by said shaft. :1 spring connection between said shaft and said mechanism arranged to allow an independent substantial forward movement of said mechanism and to impart a return movement thereto and an independent cushion device for stopping the return movement of said mechanism, substantially as described.

15. A stop mechanlsm, having, in c0mb1 nation, a shaft, means for actuating said.

shaft means for connecting and disconnecting said shaft and its actuating means, a gear driven by said shaft, means for impartmg a positive forward movement to said gear from said shaft, a spring connecting the gear and shaft arranged to allow an independent substantial forward movement of the gear and to impart a return movement thereto, and means for adjusting the tension of the spring, substantially as described.

16. A stop mechanism, having, in combination, a shaft, means for actuating said shaft, means for connecting and disconnecting said shaft and its actuating means, a bevel gear mounted on the shaft, means for imparting a positive forward movement to said car from the shaft, a rotary table provide? with a bevel gear meshing with the bevel gear on the shaft, and a spring connecting the bevel gear and shaft arranged to allow an independent substantial forward movement'of the gear and table and to impart a return movement thereto, substantially as described.

17, stop mechanism having in combination, a shaft and means for rotating the shaft in one direction only, means for stopping said shaft, mechanism to be driven by said shaft, driving means between the shaft and said mechanism embodying devices which drive the mechanism positively in one direction while the shaft is rotating and yet permit the momentum of the mechanism when the shaft is stopped to carry the mechanism a substantial distance forward and then overcome the momentum and resiliently return the mechanism to initial position while the shaft is still at a stand-still.-

18. A stop mechanism having in combination, a shaft and means v for rotating the.

shaft in one direction only, mechanism to be driven by said shaft, drivi Cr means between the shaft and said me thanismembodying devices which drive the mechanism positively in one direction while the shaft is rotating and yet permit the momentum of the mechanism when the shaft is stopped to carry the mechanism a substantial distance forward and then overcome the momentum and resiliently return the mechanism to initial position while the shaft is still at a stand-still, said devices embodyin a gear mounted on and driven by the s aft and .a spring connection between said shaft and said gear.

g In testimony whereof I afiix my signature, in presence of two witnesses.

' BENJAMIN F. MAYO.

Witnesses: a

FRED O. FIs HORACE VAN EVEREN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, I). C.

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