US75352A - blinn - Google Patents

Description

@nit-2h tuis-s l stent @fitte S. C. BLlNN, J. J. ALVORD, AND H. BREWER, OF v'.lEGUlllSEH, MICHIGAN,

' ASSIGNORS TO- S. C. BUNN.

Leners meer No. 75,352. me Mei-0h 1o, 186s.

IMPROVEMENT IN MAGHINES Tos cUTTINe Noors TRON Tus secs or .A Bols-n.

To ALLWHOM 1T MAT ooNonnN; Be' it known thstwe, S. C. BLINN, J. J. Atvoni), and H. BREWER, of Tecumseh, in the countyof Lenawee, and State of Michigon, have invented a. new and useful Improvement inMachines 'for CuttingHoop's; and we ,do hcrehyvdeclere that the following is a full, clear, andexact description of the same, reference being had to theanncxed drawings, making part of this specification, in which- Figurc'l is a side elevation,

liignre 2 is a plan,

Figure is a vertical cross-section, and

Figure Adeis o. bottom view of the feed-tab1e.

The seme letters are employed in all the gures, when designating the same parts'.

Ourimprovements relate to thatV class of-ma'chines in'which e. strip, to be used as barrel-hoop, is cut by the notion of a knife, from the edge of a board, a revcrsedviuiclinntion beingjgiven to the different sides of the hoop. Our improvements rel'ate to the mechanism foi` actuating the knife, so as to give to the hoop the form that is most to he desired.

In the drawings, A A is the framework of the machine,4 arranged to include the machinery. Power is applied through the shaft B, on which is a. bevel-pinion, B1, for theA purpose of `driving the feed-mechanism, and

4 a crank, B2, furthe purpose of Ydriving the knife@ The pinion Bldrives a wheel, 0 on the end of thcshuft D, ion` which is placed a. cam, shapedas represented inig.'v 3.. The table F is hinged to the frente under the knife,

the other side restingupon the exim E. As the com revolves the table receives en oscillating motion, being held in e. horizontal position during one-helf of the revolution of thel cam, und in an inclined position during the remainder of its revolution. The board to be cut is placed upon a feed-table, F', which rests upon the table F, and is gradually moved forward towards the knife, as the hoops are `ct by the following means: A pawl, I, attached to the frame, bears against the ratchet-wheel Gr, on the end of the counter-shaft G', which turns in boxes placed on the under side ofthe table F. On this shaft is a. pinion, H, the teeth of which engage thoseA of the rack H', attached to the lower side of the feed-table li". As the table is raised by the cam E, the pewl I slips over the teeth of the ratchet-wheel G, and as ytherteble felis the pawl, pressing 'against the retchet-wheel,

will cause 'thefced-table to be moved'towards'the khife, the gearing being'so arranged that this-movement shell be equal tothe thickness of' the h'optolhe out.

The hoop is cut 'by the knif-Krfrom Jche edge of a plank placed on the feed-table. The knife is moved by thepitman K', connecting it with the crank B2, which gives it a slicing cut. It is dsirable, to secure the best form to the hoop, that its facesv should'be rounded lon hoth sids, giving -it n concave-convex form, as well as an alternate bevel given to thc hoopby the action of the-oscillating table. This Aconcave-convex form is secured by attaching the knife, by the arms M and M', to the guide-rods N and N", on which the arms slide, and at the same timeoscillate, so thut the knife shall be forced tomove on the circumference of a cylinder, of which the arms M and M are the radius. The knife is suspended from the frame A by oscillating-rods L L,

and in order that it may receive4 both the longitudinal and vertical'reciprocating motion, and also the circular 4one described, it is necessary that the rods L shall he connected,both with the knife and with the frame, by

b all-and-socket joints, and also that the pitmanK should be'connectcd with the knife by a hellend-socket joint, undthat'the crank-pin should also be constructed in the seme form. By this means the knife may nccommodote itself to .the complex motion required for its proper action. The' mechanism is so arranged that the knife makes two cuts to eachvrevolution of thecazn E. Une cut is made While the table is horizontal, and as the knife is` raised the board isinclincd by the-rising of the table, so that, the edges .of the hoops successively out shall be alternately inclined, the second out being made while the table is thus inclined, and as the table falls again to its horizontal position, as the knife is raised, the feedtable is moved forn'ardlthe width of a hoop, the feed for the otlier hoop being obtained by the inclination of the tahle,'as set forth.

We do not claim herein, mechanism for giving a slicing cut to the knife, acting ina vertical plane; nor do we claim cutting the hoopslpou an alternate bevel, from the edge of the plank; but

What We do claim osour inventomand' desie to secure byLetters Patent,` is l The combination of the knife K; arms M and M', ond guides N end N', with the crank B2, lpmmn KJ; and rods L, when the parts are constructed and erranged'to 'operate so as to permit the knife "co travel with :L1ecip roeetingend curved transverse movement, 'substanteliy'as set forth. i Y Y I- I y A In testimony whereof, wehave signed our -names to this' speeication in the presence ofY-two-subscrbng Witnesses.

' S'. AG. BLNN,

. J. .ALVQRL Witnesses: H. BREWER.

E. B. Woon',

WM. Hmmm.

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