US120634A

US120634A - Improvement in machines for cutting and punching shingle bands

Info

Publication number: US120634A
Authority: US
Publication date: 1871-11-07
Anticipated expiration: 1888-11-07

Description

ZSheeIs- S heetR. JOHN S. EVERITT 8L CHARLES H. AVERY.

Patented Nov. 7, 1 87l;

[Jam-f %v f 4 Shingle Band Cutter.

. 2 She e t's':- Sheet 2. JOHN S. EVERITT 8LCHA'RLES H. AVERY...

Shingle Band Cutter.

No. 120,634. 7 Nov. 2,1871.

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JOHN S. EVERITT AND CHARLES H. AVERY, OF OSHKOSH, VVISGONSIN.

IMPROVEMENT IN MACHINES FOR CUTTING AND PUNCHING SHINGLE BANDS.

Specification forming part of Letters Patent No. 120,634, dated November 7, 1871; antedated October 20, 1871.

To all whom it may concern:

Be it known that we, JOHN S. EVERITT and CHARLES H. AVERY, of the city of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented certain Improvements in Shingle-Band Gutters, of which the following is a specification Our invention relates mainly to a peculiarshaped cam, used in combination with a yoke and a feed-guide, which works with either a parallel or a hinge motion, and which feeds the sheet to the knife. It further relates to the use of feed and punch-points attached to the yoke, in combination with a punching-bar and oval springs for guiding the sheet to the punches. The office of the feed-point is to feed the sheet closer to the knife than the punch-points will do. It further relates to the construction and use of a bar for holding the sheet while it is being out, which works in combination with the sash to which it is attached.

Figure 1 is an isometrical view of the machine. Fig. 2 is an under view. Fig. 3 is a rear view. Fig. 4 is an isometrical view of the parallel feedguide. Fig. 5 is a longitudinal section through the line 1 l, the parallel guide being in its forward position and the sheet under the knife. Fig. 6 is a similar section, with the feed and punch-points withdrawn and the guide forced backward. Fig. 7 is a longitudinal section of the hinge-motion feedguide through the line 2 2. Fig. 8 is a vertical longitudinal section through the line 3 3.

A is the cam which propels the yoke and the feed-guide. B is the shaft to which it is attached. 0 is the yoke, which has a perpendicular motion relatively to the box D, which forms the end of the parallel feed-guide E, to which it also communicates, through the action of the cam, a horizontal motion. F is a box in which the feedguide E works, and is attached to the table G. H is the knife attached to the edge of the table. I is the feed-point. J J are the punch-points. K is the shear attached to the sash L, which works between slides M M. N is an eccentric cam, which drives the sash, and is attached to the shaft 0, on the end of which is the crank or drivin g-wheel P. Q is a yoke attached to the sash, against which the cam N works in raising the sash. R is the holding-bar, connected by the adjustable rods S S to the lip T of the sash.

These rods pass loosely through the lip, and are furnished with adjusting-nuts U U, by which the lift of the holding-bar is adjusted. The spiral springs V V give the pressure to the holding-bar when the sash is brought down. W W are gears of the same diameter, connecting the cam-shafts B and 0. The cams A and N are so adjusted on the shafts with reference to each other that at the instant the sheet is drawn under the knife, through the action of the cam A, the knife or shear descends and cuts off the band through the action of the eccentric-cam N. X X are slots in the table, through which the yoke O and punchpoints J J work. V is an oval spring, which guides the sheet steadily under the punchingbar Z and to the feed and punch-points. This spring is fastened at one end to the top of the punchingbar, while the other, or working-end, rests on the table. The punching-bar is constructed with slots Y, into and along which the feed and punchpoints work in punching and carrying forward the sheet. The peculiar form of the cam A has this advantage over the cam in common use, as N, in that it communicates a direct perpendicular and horizontal motion to the yoke instead of a circular one, and also allows a period of rest at each quarter of a revolution, during one of which the band is cut by the knife or shears driven by the eccentric-cam N. The curve of the cam A is concentric with the shaft, and by reference to Fig. 5 it will be seen that when the cam has turned so far that its forward corner touches the lower side of the yoke C it forces it instantly and directly downward, withdrawing the feed and punch-points. There is no further motion of the yoke till the forward corner of the cam touches the right-hand side (in the figure) of the yoke, when it is instantly forced to the right, driving the feed-guide E in that direction, and bringing the feed-point I directly under the hole punched in the sheet in the previous revolution, as seen in Fig. 6. The next quarter turned by the cam forces the yoke directly upward, the feed-point catching into the punched sheet, while new punches are made by the punch-points. The next quarter turned by the cam forces the yoke, punch-points, and guide directly forward, carrying along the sheet and bringing it under the knife or shear K, which descends and cuts off the band during the period of rest at this quarter, as before stated. The feed-point is fixed to the yoke in front of the punch-points, and at such a distance from them as to catch into the punches, as explained. Fig. 7 is a modification of the feed-guide already described, in which the box D is dispensed with, the yoke being'attache'd to the feed-guide E, the motion of which is indicated by the dotted lines, lateral motion being allowed by the slot Y.

We claim- 1. As an improvement in machines for punching and cutting metallic shingle-bands, the combination, substantially as described, of the table 0, shaft B, cams AA, bars E E, punches I J, and fixed bar Z, all constructed and operating substantially as set forth.

2. The combination of the table 0, longitudinally and vertically-reciprocating feed-bars, with their punches, the holding-bar R, and shear, substantially as described.

JOHN S. EVERITT. CHARLES H. AVERY. Witnesses:

O. PALMER, L. W. HALsEY.