US256468A - Machine - Google Patents

Description

(No Model.) 4 Sheets-Sheet 2.

J. BL'DOUGHERTY.

HOOP MAKING MACHINE. I No. 256,468. Patented Apr. 18, 1882.

(No Model.)

. 4 Sheets-Sheet 4. J. B. DOUGHERTY, HOOP MAKING MACHINE.

Patented Apr. 18', 1882.

N PHERS Plwwlilhagnphe NITED STATES PATENT OFFICE.

. JOHN B. nouennitrv, OF noonns'rna, NEW YORK, ASSIGNOR, BY ME ASSIGNMENTS, TO JOHN GONNELL, or SAME PLACE.

HOOP-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 256,468, dated AprillS, 1882.

I Application filed August 29, 1851. (No model.)

To alleuhom it may concern: V

Be it known that I, JoHN B. DOUGHERTY, of Rochester, in the county of Monroe and State of New York, have invented an Improved Hoop-Making Machine, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to that class of hoopmachines in which the hoop is cut from the edge of a plank by a reciprocating knife.

In the manufacture of this kind of hoops as heretofore practiced the hoop-splint has been cut from the plank in one machine, and the splints have been then passed in turn-through a number of other machines, in which the splint was lapped, tapered, and pointed, the process requiring many successive handlings and producing a large percentage of culls.

My invention has for its object the production of a machine in which hoops are cut from the lumber and lapped, tapered, and pointed atone operation by automatic machinery, without the necessity of rehandling, the hoops being delivered from the machine ready to be placed on the barrel, with the exception of planing the outer surface for the purpose of rounding the corners, which may be practiced, if desired; and my invention consists in combining with a reciprocating dividing'knife automatically-operating lapping or tapering and pointing knives, all as hereinafter more fully set forth.

My invention also consists in the mechanical details of the structure, as hereinafter described and claimed.

Myimproved hoop-machine is represented in the accompanying drawings, in which-- Figure 1 is a front elevation. Fig. 2 is a plan view. Fig.3 is an end elevation. Fig. 4 is an inverted view of a portion of the machine. Fig. 5 is a section on the line '90 m, Fig. 1. Fig. 6 is a rear elevation of the reciprocating knifeframe and its attachments. Fig. 7 is a side view of a hoop produced by my improved machine. Fig. 8' is atop view of the same. Fig. 9 is a transverse section. Fig. 10 is a sectional diagram through a plank, representing the lines on which the hoops are out therefrom by my improved machine. Fig. 11 is a section the slots in the side frames. .menjs provided at its lower end with a bent through the swinging bar on theline y y, Fig. 4. Fig. 12 is a front view of one of the pointing-knives. Fig. 13 is a section of the same on the lines a 2, Figs. 12 and 14. Fig. latis a plan view of the same. Fig. 15 is a side view of ahoop finished and coiled. Fig. 17 is a section through the swinging bar and one of the pointing or lapping knives. Fig. 18 is a. front view of aportion of the bar and of one of the knives. Fig. 19 is a section through the swinging bar, showing one of the adjustable 6o guards. Fig. 20 is a top view, showing one of the adjustable guards.

My improved hoop-machine is represented in the accompanying drawings, in which A A is the frame of the machine, consisting ofitwo standards at each side thereof, provided with slots for the reciprocation of the knife-frame H I, and connected together by the cross-bar G. Each of the side frames is provided with a suitable base, B.

D is the driving-shaft; (J, the dividing-knife; fand f, the lapping or tapering knives, and g and g the pointing-knives.

The side frames A A are connected together by the cross-bar G, which is provided at either 7 5 end with arms h h, Fig. 1, bolted to the frames. The cross-bar G serves as a bed or table, on which the lumber to be cut into hoops rests, as represented by the dotted lines l l, Figs. 1 and 3. At their upper ends the frames A A are provided with suitable journals, 1) b, carrying the driving-shaft- D, to which motion is imparted by a belt running over thepulle'y E, or in any other convenient manner. "At each end the driving-shaft is provided with the cranks F F, connected to the reciprocating knifeframe by the pitmen a a. -As the shaft revolves a vertical reciprocating motion is given to the knife-frame, the ends of which slide in One of the pito arm, L, which serves to give the six-pointed star-wheel K on the shaft J a partial revolution at. each motion of the knife. The shaftJ is supported by suitable journals, 0 0, project 5 ing outward from the side frames. On the shaft J are placed the triangular cams d d, by which the bars e e are raised, as indicated by enables the operator to firmly grasp the lumber resting thereon.

The knife 0 is attached to the forward side of the upper cross-bar, H, of the knife-frame, and operates at each downward stroke to cut a hoop from the edge of the board fed to it over the bed-plate G. The proper beveled section is given to the hoops by the operation of the cams d d tilting the board at every other cutting motion of the knife, so that the board is divided by the knife alternately on lines at rightangles with its face and at an angle thereto, as represented in the sectional diagram, Fig. 10.

In order to cut the laps and tapers on the hoops, I attach the knives ff to the ends of a swinging bar, M, which is pivoted at its centcr to the lower side of the cross-barI. Guards 0 o are attached to the bar I to prevent the board from being pushed too far over the bedplate G. These guards are made adjustable, so as to determine the thickness of the hoop, by means of screws a a passing through slotted openings in their upper ends, which are bent over the upper side of the cross-bar. The knives ff are attached to the swinging bar M by means of screws passing into blocks sliding in the T-groovep in the bar, so that they can be adjusted laterally to suit hoops of variable length. The bar M is arranged to be swung so as to bring the knivesff into action alternately by means of the vertical rock-shaft N,-'operated from a cam,q, on the gear 0. The gear 0 is driven at one-half the speed of the shaft E by means of the pinion P. It revolves on a'stud in an arm projecting outward from the frame A. The rock-shaftN turns in suitable journals attached to the side frame. Itis located a short distance in rear of the swinging bar M, and near one end thereof. The rockshaft N is provided with a longitudinal rib, r, which swings with it and bears against a friction-plate, s", on the rear side of the bar M.

The bar M is attached to the center of the crossbar I by means of a stud, 8, Figs. 6 and 11, fastened in the cross-bar, and provided with a flange-collar, t, passing through a slot in the bar, and provided with a nut, to, on the lower side thereof. By unscrewing the nut u the position of the bar M may be adjusted to and from the operator, so as to vary the action of the knives f j" on the hoop, the sleeve t being moved transversely to the bar in the slot.

A spring, o, attached to the cross-bar I and bearing on a stud in the knife-bar M, tends always to press its end against the ribr on the rock-shaft N. The swinging motion of the cross-bar may, however, be limited by the set- The upper side of the.

screws to a, passing through lugs projecting upward from the knife-bar M.

By the operation of the rock-shaft N and the swinging bar M the lapping and tapering knives ff are caused to act alternately on the edge of the plank, so as to cut the lap first on one end of the board at one motion of the knife 0, and then at the next motion on the other end. The lap is somewhat longer than the taper, as represented in the drawings, Figs.

7 and 8, and when the knife fin its descent .1

cuts the lap the other knife, f, cuts the taper, and vice versa. In order that the points of the hoops may all come the same way on the barrel, and that the wide edges of the hoops may be uppermost in order to afford surface I for driving, it is necessary that the lap should be cut first. on one end of the plank, (the other end being tapered at the same time,) and then that the lap and taper should at thenext stroke of the dividing-knife be cut on the'opposite ends. As'the gear 0, carrying the cam g, which operates the rock shaft N, revolves but once for every two strokes of the dividing-knife, it is evident that the swinging bar N will be shifted from the position shown in the full lines in Fig. 4 to thatindicated by the dotted lines at every second stroke of the knife-frame, and that the lapping and tapering knives hein gcarried thereby will firstremovethe greater chip from one end of the plank, and then at the next stroke from the other, thereby form ing the lap alternately on the opposite ends of the plank. The tapered end of the hoop should also be pointed or out off at an angle on the corners, as represented. at the right-hand end in Fig. 7. This is accomplished by means of the pointin g-knives g g attached to the forward ends of the sliding barszz, which are arranged to reciprocate in suitable ways, i t", on the same level as the plank l-on the bed-plate G. The ways 0' i are supported by arms Q Q, extending inward from the side frames of the machine. The sliding bars 2 z are each provided with two pointing-knives, g 9, (see Figs. 12 and 13,) projectingforward from the end thereof at a suitable angle and distance from each other to give the desired form to the point of the hoop. The sliding bars are dovetailed or otherwise held in the slidest t", so as to reciprocate freely therein. The sliding bars and too knives are forced forward against the ends of the plank by the revolving wipers R R, attached to the shaft S. Thesha-ft S is supported by suitable journals carried by brackets extending backward from the side frames, and it is driven from the main shaft D by the shaft U and the bevel-gearing V W at one-half the speed of D. The outer ends of the sliding bars may be provided with friction-rollers jj". The wipers R R are secured on the shaftS in diametrically-opposite positions, and their action in forcing forward the sliding bars 2 z is so timed relatively to the descent of the dividing-knife O and the lapping and tapering knives f f that one of the pointing-knives 9 9 comes forward and points the hoop on the plank before it is cut therefrom, while the knife-frame is at or near the upper extremity of its stroke on that end of the plank which by the next stroke of the knives will be tapered. Springs 7070, Fig. 2, withdraw the sliding bars and the pointing-knives before the descent of the knife-frame. The length of the bars and wipers is so adjusted that the pointingknives enter the plank for a distance slightly greater than the thickness of the hoop, that portion of the corner of the plank left notched by the pointing knives after the severance of the hoop therefrom being removed by the descent of the lapping-knife previous to cutting the next hoop.

In order to sustain the plank-against the cutting movement of the pointing-knives g g, I provide the automatic dogsYY, which grip the plank at each end at the time the knives vcome into operation. The dogs are preferably provided with serrated edges adapted to hold the plank firmly against the bed-plate G, as shown in theside view, Fig. 3. The dogs are pivoted to the main frame or the arms h h at r 1, Figs. 1 and 2, and they are provided with upwardly-extending curved arms t t.

Into the knife-frame H are inserted the pins or studs 12' o in such positions that at the upper extremity of its travel they come in contact with the curved ends of the arms t t", forcing them inward from the position indicated by the dotted. lines in Fig. l to that shown in full lines, and causing the dogs Y to clamp the plank against the bed plate Gr. As already explained, this occurs at the time when one of the pointing-knives g g is acting on the plank. The springs y y, Fig. 1, elevate the dogs as soon as by the descent of the knifeframe the pins 1; o pass below the curved ends of the arms t t.

It will be observed that the guide-bars 0 0 are curved slightly below the swinging bar M away from the operator, to allow the plank l to be acted on by the lapping and tapering knives, the plank being pushed toward the operator slightly by the curved guide-bars as they descend, so that the dividin g-knife C may cut a hoop of the proper thickness from the plank.

I do notclaim herein anything shown or described in my Patent N 0. 41,688, February 23, 1864, the said machine having been designed to make locked hoops only.

I claim 1. The combination of the reciprocating dividing-knife O, the movable lapping or tapering knivesff, arranged to act alternately on the plank, and the pointing-knives g 9, substantially as and for the purposes set forth.

2. The combination, with the reciprocating dividing-knife U, knife-stock I, and bar M, pivoted to the knife-stock and carrying at either end the lapping or tapering knives ff, substantially as described.

. 3. The combination, with the reciprocating dividing-knife (J, of the lapping or tapering knives ff and the pointing-knives g g, and mechanism for moving the lapping-knives and for alternately operating the pointing-knives, substantially as and for the purposes set forth.

4. The combination of the reciprocating dividing-knife G, knife-stock I, the movable lapping-knives ff, and means for adjusting the position of the lappin g-knives relatively to the dividing-knife at each reciprocation of the latter, substantially as and for the purposes set forth.

5. The combination of the reciprocating dividing-knife (l, knife-stock I, pivoted bar M, and lapping-knives ff, arranged to be adjusted lengthwise of said bar to lap hoops of different lengths, substantially as described.

6. The combination of the knife 0, reciprocating knife-frame H, provided with studs '0 o, pointing-knives g g, and clamping-dogsY Y, havingbent arms t t, substantially as described.

7. The combination of the reciprocating dividing-knife G, swinging bar M, lapping and tapering knives ff, and rock-shaft N, substantially as described.

8. The combination of the slotted frame A A, bed-plate G, cranks F F, pitmen a a, dividing-knife O, swinging bar M, lapping and beveling knives ff, rock-shaft N, gearing 0 P,

and cam q, substantially as described. I

JOHN B. DOUGHERTY.

Witnesses:

GEO. B. SELDEN, S. L. SELpEN.

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