US11500A - Machine foe - Google Patents

Description

`JOHN THGMPSON, F MARBLEHEAD, AND A. Si. MOORE, oF LYNN, MASSACHUSETTS. D

`lvrAoIicIlmFoR CUTTNG lBoo'l` ANDsHoE SOLES.

Specification of Ijetters Patent No. 11,500, dated .August 8', 1854; Antedated Fbruy 8; 117854.A

i To till iutomt may' c'o'oewt:

l Be itkio'wf that We, JoHN TolvIPsfoN, of Mthleheed, `in the county of Essex and l Corn' s Mooie Lynn, in the coiihty end Commoni wealth elforeeeid, hete ihvehted eeitetiln` new adheefhl Iiipo'fents Aiii `Mit'czhine foi' Gttifhg Oiit the Solee of Shoes Boote; and we herehydeclere the following to he 'e fell, elehit, ehdeizeetfdeecrption of the sei-he,

reference being had to the annexed dttvf il mki Fett of thie cpeciiieetich, in

` Fi 1 isf anlsoihetric View of the ims Fie. is eh ehh view of the Fig e w f the difewihge `To ehehie otheie 'Skilled iiithe ift to meh-e feci` to the khivce, o, the troiigh which ece l i lee they ciechi Ich? hy the vehhc hereafter described l i hwei1th of Mceeechceette, and A- Sf echt view, Figlie eecctich thiifciigh the l Pto'ri of the `ihechihe end the framework `of the machine, B the teme iipori which the stripe of leather' j ffhfduof which is etteehed to the `sliding; frame' K. Asthe 'sht `D s mende to 'evolve,

acvettcal motion Tip eind downf's thu come munieeted to the treme 1i. `andjthejptififte' eonneeted therewith which will now he deseiibed. v i

M, is the cutter heed seeuedto the ehft e whieh hee its heefihge ih thelvibhetihg theme K, eiid is eeeii dotted lee Fig. 3, whefe it pesses thiough the eyliiideh to be hereafter referred to; The gl are ouved in such `et hoaliei"` thi'tt oheYo'f them` slfflttll` oil'm one side of a sjol'ialidtle other the other* Side;4 the cutte head bei-iig forced to make e` hielt revolution feeol time {ingf beti- P the position 4of the reet being lrgillated by `tbe Scale upon its hft Wh'eh mede feet to the bei `l? by the thuihh To theber P ie'lcorhrhunieeted i vibietoicy motion@ .uponxte points ofeilepeh Asion Z, each time the knive'sA desoelid iothe' purpose of ellowihg the eolee to fell ee they` mereetatioheryehmsli rojeotinglfitoi the; f; `matin rem'eofthe machine which oerifythe gege heel?. l

g i e ic e coiled spring-which teh-de cchfetehhy 'toretithf the gege irl the position yrepeeenttf'd `iii `Fig;` 1, ready to iteeeve the ehd` of the they are bitought lip by the spring and the perte more immediately Aeoiifieeted` *hotels-f i lhead as seen in Figs. l and 3.

cylinder seen detached in Fig. T3, andhaving a pinion t upon its inner end. This cylinder lits over one end of the shaft e of the cutter a is a flat spiral spring one end `of which is secured to the interior of the cylinder f and embracing theshaft e. If now when the cylinder is in place uponthe shaft e, it be turned in' one direction the spring binds upon the shaft and the latterA is thereby rotated. When v however ythe cylinder is turned in the opposite direction fthe spring relaxes its hold ,L. upon the shaft which then remains at rest. i Av vibrating rotary motion is communicated to the cylinder f in the following manner. R is a toothed sector having an arm w which receives a vibratory motion from the treadle A H through the connections T, V, as seen in Fig. 1. A rotary vibratory motion is thus communicated to the pinion t which gears with the sector R, and the shaft e and cutter head receive an intermittent rotary motion,

and in order that these may be arrested at face in which are cut two slots e, e.

the precise instant when the knife is in a position to make a cut, the following device is lresorted to. m is a disk secured to the shaft e having a ange y upon its inner sura, Fig. 3, is a at steel spring secured to the sliding frame Kat b Aand'moving up and down therewith. c is a tooth or latch attached to the spring a; in such, a position that as the diskw revolves with the shaft e and cutter head, the tooth c falls into one or the other of the slots or notches z, and thus the shaft is heldA st-ationary until such time as the toothA c is withdrawn from the y notch 2,

f which is accomplished in the following manner. d is `a-'stationary cam piece attached tothe main frame of the machine immediatelyv beneath the spring a and in such a position that as the frame K descends the lower end of the spring is forced in and the tooth y, tooth c upon ythe spring a.

is thus withdrawn from the slot e. `This is effected at the last instant of the descent of Atheknives ywhich are thus left free to revolve, the tooth. of resting upon the flange y `until as the disk revolves it again falls into the other slot z. The operation of this part ofthe mechanism is as follows: As the treadle descends, the cylinder f slipsk freely upon lthat the knives commenced turning before they were released from the gutter which is very soon wornbeneath them into the bed of the machine, and thus considerable unnecessarystrain and friction was produced. To remedy this evil we.have adopted the following device which constitutes our second improvement.

By reference to Fig.V 2 it will be seen that the crank G (which carries the pitman I of the treadle H) and the crank pin d are relatively so placed upon the shaft D that the pin d arrives at the lowest point of itscir- Acuit, while the crank G is still descending,

and consequently 4the frame which :carries the cutters commencesv to ascend before the. lknives begin to turn, the rotary motion of the latter being derived directly from the treadle through the connections T, V, etc. The knives are thus entirely free from the bench beneath before they begin to rotate.

and all unnecessary strain and friction are avoided. i Y y Our third improvement has forit-s object the insuring of the ascent of the knives and.

treadle whether the machine be worked fast or slow, or in whateverpart ofthe operation ;-v Y

'the machine bestopped, soy that they may at all times be in a position to be operated and so that the crank Gr shall never be'left upon its center or at the lowest point of its circuit, or .indeed in any other positionin4 which it cannot be instantaneously started by pressure upon the treadle. wheel upon the shaft D which if suiiiciently heavy would be perfectly competent to raisefthe treadle and carrying frame K so long as the machinery was in rapid motion,

but where it is constantly stopped l,and started and never worked at a high velocity, it is evident that the weight of the carrying E is afly.

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frameand treadle would depress the crank yinto itslowest position whenever the ma;` chine was stopped and it could not then be started by the treadle alone. To obviate this inconvenience I have so loadedthe fly wheel with the weight A that the combined weight of the t-readle and frame K shallbe overbalanced, so that the machine, shall al# ways be left in the position indicatedfin Figs. 1,2, and 3, ready to be again started by pressure upon the treadle. v .v

Our fourth improvement consists in af method of hanging the knives in the cutter head, sothat lthey may be instantaneously.l adjusted without loosening the screws by;

which they are confined, for the purpose of narrowing orv widening the toesv and Vheels as required by the different sizes of the soles; lThe knives a a are confined betweencurvedclampsd e which clamps are secured to the cutter head in the following manner, f arel u mortises through the cutter head inwhich,`

slide boxes g the motion of which is governed by the screw h.

groove in the end of the screw to confinejt to the box g.

A pin, seen in. dotted lines in Fig. 4 passesV throughga Through holes in thesey las boxes (Figs. 4 and 7 )i pass the screws z" which confine the cutter clamps together.

\ It is evident therefore that as the `boxes g. `are moved by the screws L, the knives will also move with them. And in order that the toes and heelsof the cutters may move in correspondence with each other, the knives with their clamps are pivoted to the cutter head in their center, the pin k', projecting` from the cutter head, entering a suitable hole in theclamp. From the: above `it is evident that the knives may be adjusted for differing widths oftoe and heel without loosening the screws which confine them to the cutter head. i

What we claim as our invention and de-` sire to` secure by Letters Patent isl. The combination of the sector and pinion with the cylinder and clamp spring, op.- erating substantially in thev manner described and for the purpose set forth.

2. Ve do not claim the mere adjustment of the crank Gr, and eccentrics on the shaft D. But what we do claim is"communicat ing both a vertical and an intermittent rotary motion H to the knives, from the coni `3. Passing the screws which confine the knives `to the cutter head through the sliding `boxes g', in the manner described `for the purpose of adjusting the knives to different widths of toe and heel without loosening the screws which conline them to the cutter head.

JOHN THOMPSON. A. S. MOORE. Witnesses:`

J. R. NEWHALL A. F. HOLMES.

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