USRE2838E - Franklin - Google Patents

Description

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FRANKLIN B. HUNT, or vRICHMOND, I NDANA, AssiGNn-E BY MnsNE e'lSSlGNliiENTS 0F HIMSELF. j

Letters Patent'NoiQBT, dated December 27, 1859; reissue- Nm 2,838, dated January 14, 1868.

vIll/[PROVEMENIl IN STRAW-GUTTERS.

dlgs Srlgifhule :stemt tu iu tipa tttits @stent zum linking pat nf tierna.

TO ALL WHOM'IT MAY GONGERN:

Bc it known that I, FRANKLIN Br HUNT, of Richmond, in the county of Wayne, in the State of Indiana, have in ventcd certain new and useful Improvements in Machines for Cutting Straw-stalks, 83o.; and-I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the aceompanying drawings,and to the letters of rcferencc marked thereon.

Like letters in the different-figures represent corresponding parts. In the drawings-- Figure 1 is a perspective view o'f a straw-cutter, showing my improvements therein.

liifzgurc 2 is a central vertical longitudinal section of a part of the machine.

Figure Sis a plan of 'the feeding-device.A

Figure 4 is a side view.

Figure 5 shows the bed-piece, bearing-plate, and side plates, combined in one piece y Figure 6 is a perspective' View of the knife-bearings, showing the knife attached thereto, and the frictional set-screws.

Figure 7 is a perspective view of the adjustable bar against which the knife cuts.

To'enable others skilled in the art to make my invention, I will proceed to describe the parts, and their operation.

A is the frame of the machine. 4IB is the feeding-trough. C is a crank for operating the machine, and is fast to the shaft D. On shaftD are thenpinion E and wheel F. Wheel F works Yinto 'pinion Gr, on the shaft H to communicate motion to the cutting-knife. The knifeJ is secured to the cylinder, composed of the parts I I and K, by means of screws. The cylinder to which the knife Iv is attached is loose upon the shaft H, but is made suiliciently fast thereto,"by means of set-screws ava, (which are-clearly shownin iig. 6,) to withstand all ordinary resistance presented bythe feed when passing under the knife. (In shaft D is securedV a fiuted roll or cylinder, L. On shaft D is'also fitted one endof' each of the' two links M. The opposite ends of these links form the bearings for and carry the sliaft 0. On shaft() is the gear-wheel P, which works into and 'is driven by thepinion E, so giving motion Vto the fiuted cylinder Q, on shaft O. The bed-piece R, withits bearing-plate for the cutter-bar T, and side pieces V Y, are made 1`n`one piece or-4 casting, and are secured to their support by the screws S. Thecutter-bur T is secured to its seat on the bed-pieceR'by means ofpvertical screws U, pass` Ying through slots in said seat, the screw-bolts U securing' said adjustable bar within the limits ofthe width of the throat of the feed-box, thereby making a more solid bearing for-the cutting-knife to act upon than would be the case if said adjustable bar were securedto the outside framework ofthe machine. `The springs W press upon the upper ends of the link-hearings M,'and so keepV the feedlro'ller or cylinder Q pressed down into contact with the straw or other material passing under it. These springs'W yield upward, to allow the free passage of the ever-varying thickness of material passing under the roll, Q. The motion of the ro'll, Q, up and down, is through the arc of a circle, whose centre is the axis of shaft D, the effect of which is to'shorten the operative length -of the springs W whenever a large quantity ofI material passes under the roll Q, so increasing their effect at the propertime. The red line marked Yis a zinc plate, which covers the joint between the adjustable bar T and the bed-piece R, in order to make a smooth surface, over'which the straw or other material passes to the cutting-action of the knife.` X is -a fly-Wheel, which is fitted on the shaft H, and held in place by the screw nut Z, auiiciently tight to resist slipping on the shaft by any ordinary cutting-action of the knife upon the feed. The object of the knife-cylinder and the f1y-wheel beingI fitted loosely on theirshaft is for the purpose of allowing either of them to slip upon thev shaft H when vthe knife meets with an unusualobstruction, such as n. large stick, bone, or other foreign substance, mixed with the feed to be cut,' or when an overcrowding of corn stalksis forced hetweenthc knife and cutter-bar, the knife being allowed thereby to suddenly stop, and the ily-wheel to continue to revolve, and expend its momentum .in a. gradual manner.

, 'Having thus rdescribed my improved straw and stalk-cutter, the Ioperation is as follows; Motion is given'to the shaft D, by means of crank C, in the direction indicated hy the arrows in figs. 2 and 3. By means of pinion E and wheel P, a reverse motion is communicated to roll Q, yand also, b y means of pinion and wheel G F, to shaft l-I and the cutter-cylinder. The straw Aor other material to be cut is now placed 'in thc trough B, and is carried forward by the rolls L and Q, and, passing over the cutter-bar T, is cut by the revolving knife .T. Should the knife J meet with an unusual resistance, so as to endanger the parts of the machine, the knife-cylinder or ily-wheel, or both, should be so tightened tothe shafts as to hold firmly when performing Vits ordinary work, and to easily slip upon the'shaft when an unusual resistance is offered to the knife, as previously described.

I do not wish itto be understood, by anything herein described or claimed, thatIintend to debnr, or claim any right to interfere with, any person, having a straw-cutter made with a cylinder of cutting-knives, fromv removing any number of saidknives for the purpose of changing the length of the material cut. My machine is peculiarly adapted, in all the working partstbereof, to the use of' a single cutting-knife, and, if a change of feed is required, I prefer to accomplish that object by other and more suitable means.

Having thus described the operation of my improved straw-cutter, what I claim, is-

1, Combining in one piece the bed-piece' R, upon which the adjustable barT rests, and the side pieces V'V, substantially as shown and described. I

2. The adjustable bar T, against which the knife cuts, when secured, byvertical bolts U, to an immovable bearing Within the limits of thewidth of the'cutting-linife, as shown.

3. The plateY, for the purpose of covering the joint between the adjustable bar T, against which the knife cuts, and the bed-piece R,'in manner substantially -as set forth.

4. The link-bearings M, attached to the shaft D, and carrying the feed-roll Q, in combination with kthe springs W, in such manner that, as the roll rises, it'shortcns the operative length of the springs, and thereby gives tbeg'reatest pressure to the roll when most needed, in manner substantiallyl as shown.

5. Attaching'the'ily-wheel of a feedcutter to' its shaft in such manner as to constitute a yielding-device between said wheel and the cutting-knife, for the purpose described,

6. Attaching the knife-cylinder of a feed-cutter to its shaft in manner shown, or in an equivalent way, t0 constitute a yielding-device between the knife and other parts of the machine, for the purpose herein shown and set forth.

, FRANKLIN B. HUNT. Witnesses: A

Geenen T. PALMER, Cniis. LEWIS.

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