US80154A - Jacob dobbins - Google Patents

Description

i @witch grieten 'genet @ffice 'JACOB DoBBIN-S, 'OF-LITGHFIELD. MIGHIGA'N.

IMPROVEMENT INV MAGHINES FOR CUTTING HOOPS FOB BBRELS.

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'IO ALL WHOM IT MAY CONCERN: y Be it known that I, JAcoB DoBBINs, of'Litchlield, in the-fcou'uty of Hillsdale, und State of Miehigamhevef v 'invented new and useful Improvementsiin Machines for Cutting and Bending'Hoops, &c 'and Indo hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled inthe rtto make and use the same, reference being had .tothe accompanying drawings, and ,to the letters ot reference z marked thereon; l

This invention consists- A First,n an arrun'gementv for cutting the lsp, or, inother wordsy for tapering the endete the hoops, in

' which rrangement two additional knives `ure placed for operation `in zm oblique position togen-td corner from each end of .the boardfromvwhich the hoops are cut, before it reaches the knives forcuttiug the hoops. To'l force 4the board againstY the knivesl for tapering ,the hoop-ends, and up age-inst the feedfrollers', s. double rack- V'intr-is arranged for such action-upon the board when placed in Iposition i.1nder a'slide 'projecting-from theside ei the rack-bnr in front; as the boardfbymenn's of this slide, raises the-bar so thttheteeth inthe lower jaw come in contect with the pinion-rrh'eehwhich 'forces it forward to the place where there are no teeth, andI there re'ma'ins until the h'oard'passes from und'th slide, when the weight of' the ber brings the teeth in the,` v ,upper jew in contact with thepinion-wheel, which lthrows' it back'to its first position, ready for thejboard; yroller or treadle mayhe used 4in placeof' the slide, if preferred. Y Y 1 `=Second, in un arrangement for returning the board buck to the place where it is'fed` intok the mac-Bine,

Y wh-ieh's done by means of rollers' set with points, and attached tothe shafts, which'move'in concert with'eech other by means ot' pulleys and s belt, or otherwise, whereby, as soon as the board has passedthrough the feedvrollers, it will vut once drop on the left-hand or furthermesty pointed roller, and be returned to the place; for 4feeding the machine. i

Third, itconsistsv in combining u couple of small rollers with-u concave metallic suri'ce, in connection A.with thelarge roller, for 'the purpose of 'bending the hoops.

' Fourth, in the form of theknives, and also. in the plan of fastening them tothe machine. -vIn thehccompanyingplatesoi' drawings my imprnvemonts in m'nchines for cutting and bending hoops'are v 'llus'tratedl Figure 1, plate 1, being a plun or top view of n--machine mede according thereto.. Figure 2, plete 1, a vertical section taken' in the pluneof.4 the line a: iigfl.- v-iigure 3, plete 2,l clongitudinal vertical section, tzt-ken in ethe plane-of the line-yy, fig. 1.; and E igure 4, plate 2, u. detached AView, to be hereinafter referred to; 4Figure 5' ila-detuchedplan view, partly in section, to show the position of the outer knife. Figrel's' il n view of the board from which the hoops are cut, to be hereinafter referred to.

. 'Agfih thedmsingn represents a framework, of any suitable construction, -tc support 'the various working 'parte of the mehine. B,i.he drivin'g'shufnarranged to'turn in suitable henringsof the framework A, nndproridedtwithe pulley, AC, by which,.througl l a hclt, it is `tobe connected'with the driving-power employed.

' D, the .hedor frame, long und Ln which the board passes to be split or cut into hoops uccordingtothis invention. This bed D is provided with a. series of friction-rellene, E, arranged :1t-suitable points. v "F, nscries offfeedrollers arranged in the lineof thc bed D, so as to feed the hoord along und over the seme. the hoard passing between them, they being arranged in pairs, cndthrough their shafts Gand pinionwheels H, suitably connected with the driving-shaft B, to receive the necessary :md required movement.

land J ure two cutters secured to the frame, und inclined in opposite directions. The one, I, is located upon the frame, near: its centre, and the other, J, upon the upper end of the stsnderd'or .support O. These two knives yserve Eo cut the lup upon each .end of the hoop, andtheir operation -will be presently described.

AK, the knife or cutter-blades, attached lto the framework A,'in positionfor splitting the board into,ho`ps after the lnpslmve been cut.

L is a lever-arm hung at one end to the upper end of a vertical swinging lever or arm, pivoted at its lower end, N', to the`post O of the framework. i

This lever L is extended forward in a line with thc bed, over which the hoard passes, for being' split, passing through a guide, O, and at' its outer end, P, made of a. forked shape, with each prong, Q, provided with teeth, a, and projecting respectively over and under a spur-wheel, R, fixed to the shaft, S, of the upper feedroller of the first set of rollers. By throwing the forked lever s'o as to bring the teeth of its upper prong into connection with the spur-wheel R, the lever is made to move forward until the smooth recess S is redhed by the spur-whecl R, when' the lever drops by its own gravity, and the upper arm Q engages with the spurwl1eel R to be moved back. l f l T is a loop secured to the side of the lever P, and serves to hold the board, from which the hoops are cut, upon the table or rollers E. l

U, a drum, arranged, by its shaft, V, turning in suitable bearingsof the framework A, to bear upon the lunder surface of the board, and W a drum arranged to bear upon the under side also.

These drums are connected through abelty and pulleys properly arranged, and are both provided with teethV suitahlefor carrying the hoarrhalong back after having been split.

' X, a. concave edge of an ripright frame, Y, between which concave and the serrated or grooved drum Z the hoop is placed,fand therein, by' the rotary movement, imparted to the said drum, by properly connecting it y with the drivng-power A, friction-rollers, one at each end of the concave, the hoop is heut.

The operation of cutting the laps for the hoops, our for cutting the corners of the board,'is: as follows: The board is placed under the loop T, parallel to ther lever P, raising the lutter slifliciently tc engage, by

- its lower arm, with the spur-wheel R. It is moved forward by this pinion until theend of the board is brought against the c/lgeof the'knfe I, which, owing to its inclined position, cuts a corner from the board n'a diagonal line, as seen at p, iig. 6. The feed is continued until the inclined or bevelled'end o5' the board is brought in contact with thc bevelled liangef upon the lowerl feed-roller' F. f This flange guides the bevelled end of the board toward the outer `end of the 'roller F, and therefore throws thevoutler end of the'board correspondingly in an opposite direction, bringing it in contact with the c'utter or knife J to cut the bevel, as shown 'at tig. 6.

In order to increase or diminish the bevel given to this end of the board, the rear end of the frame is adapted to be adjusted laterally, by `means of the adjusting-screw W and the pivot w, in the pieceO of the frame".

This piece is cut out at the bearing ofthe roller E, in order to allowthe requisite degree of lateral movement.

Having thus described my invention, I clanrasnew, and desire to secureby Letters Patent--v The arrangement of the inclined knives I J andthe llangefof the feed-roller F, substantially-as described, y,

for the purpose'speclfied.

JACOB DOBBINS.

Witnesses:

ANDREW P. Hosnaru, JESSE E. MeAtLrs'rEn,

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