US77209A - The norris petehs co - Google Patents

Description

2 Sheets-Sheet 2.

G. W; PARSONS;

. STRAW CUTTER; N 77,209;

Patented Apr. 28, 1868.

In: "gums versus :0 .wowuwu msumcrm, ou:

hitch fates atent GEORGE PARSONS. OF HARRISBURG, PENNSYLVANIA;

Letters Potent No. 77,209, elated April 28,1868.

mrnovnnnnr m srnAw-currnss.

TO ALL WHOM IT MAY CONCERN:

Be it lznown that I, Gnonen W. Psnsons, of Harrisburg, in'theeounty of Dauphin, ,and State of Penn- "sylvania, have invented a new and useful Improvement in Straw-Gutters; and I do hereby declare thatthe following is a full, clear, and'exact description of the construction and operation of thesame, reference being bad to the accompanying drawings, in which- Figure 1 of plate is a view of the right-hand side of the machine.

Figure 2 of plate 1 is a side view of internal gear-wheel and pinions.

Figure 3 of plate 1 is a plan or top view of the machine. v

' Figure 4 of plate 1 is a view in detail, showing the manner of attaching crank to the driving-gear wheels Plate 2.

Figure 1 is a view of the lefthand side of the machine. 4

Figure 2 is a top view in detail of balance-wheel and its attachmentsou knife-shaft.

Figures 3 and 4 are'sectional views of feed-roller disks, with teeth dove-tailed therein.

Figure5 is a detailed view, showing the manner in which the teeth of the disks engage each other.

Likeletters in the diflerent figures of the drawings represent like parts.

The nature of my invention consists in- First, operating the feed-rollers by means of a short shaft of a knife-driving gear-wheel, supported by a movable and adjustable brace, the end of said shaft being provided with pinions of different sizes, so arranged, in combination with an internal gear-wheel on the shaft of the lower feed-roller, that difl'erent lerigthsof cuts of the straw or other material may be obtained. 4 I 7 Second, communicating motion from the lower to the upper feed-roller by means of two circular plates or disks, engaging one another by peculiarly constructed teeth, of malleable iron, with dove-tailed shanks, suit ably arranged on the face sides of the disks, in'the casting or moulding thereof, the said gearing operating the upper with the lower roller, and allowing the necessary play for different thicknesses of straw or other materials to pass between the rollers in feeding the machine.

Third, counterbalances on the arms of the knife-shaft, opposite to the knife, and so that they can be removed, and another knife attached in their place. v Fourth, the manner of causing the fly-wheel to revolve with the shaft, by means of radial-ribs on the end ofthe hub of the wheel, fitting similar ribs on a fixed-washer, in combination with an elastic washer and a metallic screw-nut, or by inserting wooden pins in holes through the ivheel'and the driving-washer, by a pin,

through the shaft engaging with the wheel, so that-the fly-wheel may continue to revolve independently of the shaft, in case of sudden stoppage of the knife, and thus avoiding liability of injury to the knife or other part I of the machinery. I V

Fifth, the manner of securing the crank to the driving-wheel by one screw or rivet, the crank having small lugs or flanges engaging the arm 6f the. wheel,

To enable others skilled in the art tomake and any invention, I will proceed to describe the constructionnnd operation of the same.

I construct my straw-cutter with a frame, AA, and box B, and feeding-rollers C10, (represented dotted lines in fig.-1 of plate 1,) and place across the frame, in suitable bearings, a knife-shaft, D, similar the machines now in use. To arms o'n the knife-shaft I attach attuned-cylindrical knife, E, and place'onarme opposite to each end of the knife removable weights, F F, to counterbalance .the weight of the knife and its attachments, the counterbalanees being held in place by screwsior bolts, so that they can he removed when'it is desired to increase the cutting capacity or themachine, and another knife attached in the same place. The knife is made adjustable, to meet the bar or fixed. cutter plate, by being attached to arms provided with slate, and screw-bolts inserted through the slots, and into the fixed arms of the shaft, thus allowing the knife to be moved upor down on the fixed arms, and set to the position desired. I find it more desirable to have! the knife adjustable than the bar or cutter-plate, as in other machines, as it can'bo-adjust'ed with more convenience than the cutter-plate. I

t The feeding-roller'O islsmoothj, and revolves below and behind the cutter-bar Gr,in fixed bearings." The feeding-roller C is ribbed: longitudinally, and is held'in position above the lower roller 0 by means of eheckor 'sidepieces," with slots for the lplay of the shaftof the, roller, and is held down on the material by means of spring or springs.

On the'right-hand en dof the shaft of the lower roller 0, 1 place'an' internal gear-wheel, H, which may be as small or as large as desired. vI use one seven inches in diameter.

Asmall cog-pinion, I, is placed on the right-hand end of. tho. knife-shaft D.' This pinion mcsheswith 4' large cog-wheel, K, to which the handle or crank L is attached, when the machine is operated by hand. Other pow'ergmay be applied, by belt on the balance whccl Mo) on asmall pulley that may be-attachedto the wheel.v 'The crank has small flanges, a a, projecting, so. as to engage and clasp one of the arms of the wheel K, and

a is held to its place, by a single screw or rivet, b. I

. The wheel K is secured upon the outer end of a short shaft, 0, which shaft is supported by a movable and; an adjustable brace, N, the front end of which brace is held in place-by the knife shaft passin'g through it, a The other end of the brace is m hde with a vertical slot, d,-and secured by a screw or bo'lt,.e,"to the frame A;

The brace may also be made so that both ends thereof are secured directly to the frame, or in any other man nor, provided it is so made as to be movable and adjustable.

' a t,- ",The inner endo'f the shaft'c'ofthe driving-wheel K is made with a small cog-pinion, 0, which engages and meshes with the internal gear-wheel.

When an internal gear wheel of small diameter-say seven inch diamster--ishsed,in order tofas' short a length of births is desirable, the pinion must be so small that it can'only be made by castingit on the i "'end off the shaft 1:. v To make a changein the ,lengthof the cut ot' thestraw,-I employ another small pinion, P,.which is attached by unfastening the slotted end of the-brace. N, and moving the brace outward, so that the fsecond. pinion, P, may he slipped over the small pinion, Qfon the end-of the shaft, the internal part offthe pinion P being made the proper size-and shape to fit on the small pinion,; O, andby replacing and securing the br'ac e N, pinion P engages and meshes in the internal wheel.

' By making the internal gear-wheel large enough, a pinion suiiiciently small may be made separately, and properly, attached to the end of the shaftc, instead of being custon, the end of the shaft, as hereinbefors described, in which case the pinions may be changed as required, for securing difl'e rent length of cuts, by

, removing one, and substituting another of a smaller or larger size. 1

, In ,order to communicate motion from' the lower to the upper feed-roller, I employ a disk, R, arti ans" plate, ou the shaft of each roller, the plates 'facing each other, and are constructed with cog-teeth, f f f, arranged around on the' face sides. These cog-teeth are peculiarly shaped, being triangular-shaped, with rounded ends,

' and project from the sides of the plates, being disconnected from the hub, soth'at' the outer'ehds of the teeth'on the drivin Ldisk may act on the inner ends .of those on the driven disk, and vie-averse, as shown by'fig.- 5 of plate 2. The-'cog-teeth being disconnected with the hub, and being subjected to considor'ablestrain in use, may be frequently broken if madeof cast iron, of whichthe plates or disks are made. therefore make the teeth of malleable iron, withzdove-tail shanks, which are heldin the platesby being placed in the moulds of the same before the moulds are filled with the moltenhon.

As the knife-shaft revoiveswith rapidity, the knife and other parts of the machino arcexposed; to injury from the momentum of the fly-wheel, when the knife may be suddenly arrested by a solid substance in this straw or other material. To prevent such' injury in such cases, I employ three 'difi'crent devices, any one of which or s all 6! them may be used at one time. i

First. The flywheel M is-placed on the shaft, ago.inst a shoulder on the shaft, haying-at said, shoulder-n hole, 9', tbrbugh the shaft, in which a wooden pin is placed, each end of which-project's into a slot across-the hub of the wheel, the wheel being held laterally by washers and a screw-nut on the end of the shaft. When.

the knife is suddenly nrrs'ted,-the momentum of the fly-wheel' will break the wooden pin before breaking any part of the machine. v I

3 1 Second. I place on the shaft ontside of the hub of the wheel, a washer, S, which has a'square hole to fit,

a siiuare place on the shaft, so that it will always revolve with the shaft, and I make one or more coinciding holes, I, through said washer and hub of the wheel, in which woodenpins are placed. The momentum of the .wheel will break these pins before breaking 'the machino, in case of a sudden stoppage of thckn'ife.

Third. On the outer end of the hub of the fly-wheel I ma kea series of radial ribs .or eorrugations,"and

make similar ribs oaths inside face oftthe washer S, with square hole, (which I call'a driving-washer,) and hold the driving-washer against the hub of the wheel by a sorew nut, T, on the shaft, 'with an elastic washer, g, between the driving-washer and the nut. When the knife-shaft is suddenly stopped, the radial ribs'on the whaelhub will 'slip over and pass by those on the drivingqvasher, the'elastic washer allowing thedriving-washer to mov'e'outwardiy en the shaft sufliciently for that purpose. a

" v O oeratidm f I a The operator, standing on the right-hand side of the machine, turns the crank. L, attached to the drivingwheel K, with the right hand, and with the left hand adjusts the material in the box, B, so that thefeed-rollers more the material to the knife. V I V Thedifl'erent lengths of cuts are obtained by changing the pinionsonthe end of shaft 0, as described in the specification. I

It i obvinufl thatmy improved machine is adapted to the outt'ing of various other materials besid' such as corn-husks and stalks; hay, stems and leaves of tobacco, 8tc., and I do not desire to restrict myself to the use of my improvement in cutting straw alone.

Claims. Having thus fully described my invention, what I claim therein as new; and desire to secure by Letters Patent, is-- I. The pinion O, on the end of the shaft 0 of the driving-gear wheel, in combination with the movable and adjustable brace N.

2. The internal gear-wheel H, in combination with the driving-gear wheel K, whose shaft is supported by a movable and adjustable brace, as set forth.

3. The movable and adjustable-brace N, supporting the largo gear-wheel K, in combination with the cogpinion I on the knife-shaft D.

4. The pinion P, fitting on and over the pinion O, in combination with the shaft and driving-gear Wheel K.

5. The combination, in a straw-cutter, of a feed-roller whose shaft moves up and down, with the drivinggear wheel K and pinion 0, when said wheel and pinion are supported by an outside brace.

6. The emplo'ymentof detachable counterbalances F F on the arms of the knife-shaft D, when combined with a single adjustable rotary knife. l

7. Operating the feed-roller C.of a straw-cutter by means of the disks B, when constructed with cogteet'h ff); disconnected radially from the hubs thereof, in the manner and for the purpose as described.

8. The screw-nut T, elastic washer g, and fixed driving-washer S, with radial ribs, in combination with the radial ribs on the hub of the fly-wheel, substantially as described.

9. The cohstruction of the hub and fixed driving-washer, with holes, 71, for the insertion of wooden pins, substantially as described.

10. The construction of the shaft, with a hole. for the insertion of a wooden pin, with the slot across the hub of the fly-wheel, substantially as described.

' GEO. W. PARSONS.

Witnesses:

G. B. TOWLES, W. Beams.

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