US600154A

US600154A - Feed-cutter

Info

Publication number: US600154A
Authority: US
Publication date: 1898-03-08
Anticipated expiration: 1915-03-08

Description

4 Sheets-Sheet 1.

(No Model.)

L. L- LAMB. FEED CUTTER.

' Patented Mar. 8, 1898.

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,154. Patented Mar. 8, 1898.

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L. L. LAMB. FEED CUTTER.

No. 600,154 Patented Mar. 8, 1898,

UNITED STATES PATENT OFFICE.

LEVI L. LAMB, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WHITMAN & BARNES MANUFACTURING COMPANY, OF AKRON, OHIO.

FEED-CUTTER.

SPECIFICATION forming part of Letters Patent No. 600,154, dated March 8, 1898.

Application filed July 17, 1897. Serial No. 644,886. (No model.)

To all whom it may concern-.-

Be it known that I, LEVI L. LAMB, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Feed-Cutters; and I hereby declare the following to be a full, clear, and exact description of my invention in its best form now known to me, reference being had to the accompanying drawings, which form a part of this specification.

The object of my invention is to provide a feed-cutter which shall be of simple construction, efficient, and convenient to operate.

My invention consists in the features of construction hereinafter described and claimed.

In the drawings, Figure 1 is a front elevation, and Fig. 2 a plan view, of my improved feed-cutter. Fig. 3 isa sectional view of the elevator and its swivel. Fig. lis a sectional view on the line a a of Fig. 3. Fig. 4 shows a view of an elevator-bucket. Fig. 5 is a partial rear elevation showing the feed-rolls and gear-wheels. Fig. 6 is a sectional view of the feed-rolls, gear-wheels, and links taken on the line b b of Fig. 5. Fig. 7 is a detail view of link 42. Fig. 8 shows the gear-lock.

' Similar 'figures indicate similar parts throughout the several Views.

The general operation of the machine is as follows: The feed or other material to be cut is placed upon the feed-table 1 and by hand is shoved between the feed-rolls 2 and 3, which take hold of the material and force it against the cutting-cylinder 4:, the knives of which, shearing on the cutting-bar 5, cut the material into small pieces, which drop down the spout 6 into the hopper 7 of the elevator or conveyor. The chain 8 of the elevator passes through this hopper and carries the out material up the elevator 9 to any point desired.

The cutting-cylinder, which may be of any of the common forms (one of which is shown in Fig. 3) or a shredder, is mounted on the shaft 10, having at one end the belt -pu1- ley 11 (to which power is delivered from any convenient source) and the gear-wheel12 and at the other end the balance-wheel 13. vThe lower feed-cylinder 2 is mounted in fixed bearings and at one end carries the gearwheel lat (meshing in and receiving power from gear-wheel 12) and also a sprocketwheel 15,bearing the sprocket-chain 16,which passes over the lower sprocket-wheel 17 and through the bevel-gears 18, the vertical shaft '19, the chain 20, shaft 21, bevel-gears 22,

sprocket 23, chain 24, and sprocket 25, which is rigidly attached to the shaft 26, on which are mounted the elevator-chain sprockets 27, transmits power to the elevator-chain 8.

The shaft 21 is pivoted at its bottom, so that the whole elevator can be swung around through an angle of about one hundred and eighty degrees and the cut feed thus be delivered at either side of the machine or directly in line with it, as shown in the drawings, or at any intermediate angle.

The elevator consists of two interchangeable sprocket chains 8, having at certain points special buckets 28. As fully shown in Fig. 4., these buckets are castings in the form of a light angle-bar 28, having at each end a link 28 of an interchangeable sprocket-chain, the two links and angle-bar being cast in one piece. These links fit into the links of an ordinary chain, and the angle-bar acts as an elevator-bucket. The number of these buckets used per foot of elevator-chain may be varied according to the kind and amount of material to be elevated. In order that the feed may be prevented from slipping through the hopper, it is necessary that the buckets 28 fit close to the bottom 29 of the hopper 7 as they pass up through it. I therefore make the bot tom of a sheet of thin iron 29, bent so that the buckets will almost touch it for about ninety degrees of their travel over sprocket-wheels 27. In such machines there has always been trouble in providing a suitable method for fastening this bottom sheet to the sides of the hopper so as to have it secure and retain its position properly. To avoid this difficulty, I make the sides 30 of the hopper of cast-iron, having cast thereon the flanges 31 and the lugs 32 or the flange 32, (shown in dotted lines,) with just space enough between the flange and the lugs (or flange 32) so that the sheet-iron plate 29 may be slipped in. By

this construction the bottom and sides of the hopper consist of only three pieces, and no nails, screws, or machine-work are required to put them together. At the opposite end of feed-roll 2, Fig. 5, is the gear-wheel 33, having in mesh with it the gear 34, the two being connected by means of the links 35, which are pivoted to the shaft of gear 34, so that gear 35 can swing about the shaft. In

the same way gear 36 is connected togear 35 r by the links 37. The upper feed-roll 3 rests directly upon the lower roll 2 and is carried in bearings which are adapted to slide up and down in the slots 38 of the frame of the machine, thus allowing the upper roll to accommodate itself to the varying thickness of feed. In order to give the roll 3 sufficient pressure upon the material to properly feed it, the bearings of the roll have over them the links 39, to which tension is applied by means of the springs 40.

on the end of the upper feed-roll 3 is the gear-wheel 41, adapted to mesh with gearwheel 36, and pivoted to the shaft on opposite sides of said Whee141 are the links 42, having the slots 43, adapted to receive the shaft of gear-wheel 36. These slots are so located that the shaft of gear 36 may be moved in them sufiiciently to throw gear 36 in and out of mesh with gear 41. The links have recesses 44 on their insides, adapted to hold the gear-lock 45, which is adapted to slide in said recesses and shove gear 36 into mesh with gear 41. At the lower end of these links is pivoted the hand-lever 46, having the cam 47, adapted to act on gear-lock 45. This cam is of such a pitch that when the lever is thrown down in the position shown in the drawings gear 36 is forced in mesh with gear 41, and when lever 46 is thrown up to substantially a vertical position the cam will be in such position that gear 36 may drop out of mesh with gear 41. It is very important to be able thus to start and stop the feed-rolls at the will of the operator,so as to properly regulate the amount of material fed to the cuttingknives. This link mechanism shown and described above forms a flexible connection by which power is transmitted from roll 2 to roll 3, at the same time permitting roll 3 to move up and down in the slot 38. When it is desired to change the length of cut of the material, gear 33 and link 35 can be removed and a larger or smaller gear and its corresponding link be substituted, thus causing the upper roll to revolve faster or slower and change the rate of feed and consequently the length of cut.

Having thus described my invention, what I claim as new, and desireto secure by Letters Patent, is

1. In a feed-cutter in combination with a feed-roll and the gear-wheel on its shaft, a pair of links pivotally connected to the shaft of said feed-roll, another gear-wheel adapted to mesh with said feed-roll gear-wheel journaled in and adapted to slide in recesses in said links, a gear-lock and a cam-lever pivoted in said links adapted to act on said gearlock and force said second gear-wheel into mesh with said feed-roll gear-wheel, substantially as described.

2. In a feed-cutter in combination with a feed-roll and the gear-wheel on its shaft, a pair of links pivotally connected to the shaft of said feed-roll, another gear-wheel adapted to mesh with said feed-roll gear-wheel journaled in and adapted to slide in recesses in said links, a gear-lock, a cam-lever pivoted in said links adapted to act on said gearlock and force said second gear-wheel into mesh with said feed-roll gear-wheel and means for supplying power to said second gear, substantially as described.

3. In a feed-cutter, in combination with the feed-rolls, the gear-

wheels

33 and 34 connected together by the links 35, the gear wheel 36 connected to gear-wheel 34 by the links 37, the gear-Wheel 41 and the links 42 having the slots 43 adapted to hold the shaft of gear- Wheel 36, recesses 44 in said links 42, the gearlock 45 adapted to slide in said recesses 44, and the lever 46 carrying the cam 47 pivoted in said links 42 and adapted to act on said gear-lock 45 and force said gear-wheel 36 into mesh with said gear-wheel 41, substantially as described.

LEVI L. LAMB.

I/Vitnessesz D. B. CHEEVER, ROBT. K. S. CATHERWOOD.