US3036A - richardson - Google Patents

Description

'|. J. RICHARDSON.

' Straw Cutter.

Patented April 10, 1843.

tnvirn s'ras PATENT orrion I. J. RICHARDSON, OF NIMV YORK, N. Y.

STRAW-CUTTER.

Specification of Letters Patent No. 3,086, dated April 10, 1848.

ence being had to the annexed drawings,

making a part of this specification.

This machine consists:

1st, of a frame of three feet two inches in height; three feet eight inches in length, and twelve and a half inches in width, having-the straw-box at the top of the frame, which is six and a half inches deep, and at the hind end ten and a half inches in width inside and contracts toward the front end to the width of eight and a half inches, and at the front end is closed except the mouth, at which the straw is out, which is eight and a half inches in length and two inches in width or height.

2nd, of a fly or balance wheel placed at the front end of the straw-box, having at tached to it a straight knife, which when the wheel revolves willpass in contact with the mouth of the box, cutting the straw at each revolution of the wheel. The diameter of the wheel is twenty-eight inches. The

. knife is twelve and a half inches in length and is attached at one end to the rim of the wheel and at the other to one of its arms. The positionof the knife upon the wheel may be thus described. Let the outer point of the knife, rest on a line drawn horizontally through the center of the wheel, frointhence it extends to a point on the armso that its edge shall be five inches above or from the center of the wheel, forming an acutev angle with the lineand an obtuse angle in its connection with the arm, and having its edge downward or toward the center. The knife is ground straight and even on the side next the mouth, and on the opposite, or side next the wheel, with a bevel from the edge one inch in width, and it stands out or is raised from the general surface of the wheel about one inch by pro jections placed on or forming part of the arm and rim, upon which it rests at the ends, and it is attached by bolts passing through it and to' the oppositeside of the wheel, which have nuts at their outer or screw ends by which the knife is made fast,

the heads of the bolts being sunk in the knife until they are even with its face. The

projections upon which the knife rests fallback one inch from the edge, by which means the knife can cut from end to end without being impeded by the projections. A set screw passes through the arm and rim and comes in contact with the knife bet-ween the bolts above mentioned and its edge, by which the knife can with facility and ease, be so adjusted in reference to the mouth of the machine as to cut close and to the best advantage, thereby dispensing with the inconvenient and objectionable method of accomplishing'the same object by the use of and the project-ions at the ends of the knife,

leather, or wedges of wood or iron, placed 1 under the knife. hen the wheel is viewed on the side to which the knife is attached or from the hind end of the machine,'it is seen, as its proper position is, on the left hand side of the machine, having its center two inches and a quarter below the bottom of the mouth, and four inches and fiveeighths to the left of the mouth. This depression of the wheel or deviation of the mouth above its center, causes a sliding or drawing stroke of the knife while cutting,

thereby performing the work of the machine with Y the exertion of the least possible amount of motive power, and the elevationj and distance of the mouth from the center of thewheel prevents the knife from gathering the straw toward the center of the wheel. The wheel revolves, when the machine is in motion, supposing t to be viewed as above, I

from left to right, :cutting the straw with f the downward stroke of the knife.

.3 d f tvo b vel xvhegls, a, large and small, or driver and pinion wheel. The

shaft or axis of the larger one passes under the straw box about fifteen inches behind its 7 mouth, having the wheel at the end onthe side of the machine next the balance wheel, into whichthe pinion wheel operates and which latter ,wheel is upon the hind end of the balance'wh'eel axis or shaft. On the op posite end of the driving wheel axis is af-' 1 fixed a crank, by the turning of which the f balance wheel and the other machinery are put in motion and the cutting of the straw performed. The size of the respective bevel v i wheels is such, that the balance wheel shall i have two or more revolutions to one revolu-' tlon of the crank, the driver in the machine,

here described being about five inches and the pinion about two and a quarter inch in diameter, or the former having thirty and the latter twelve cogs, giving two and a half revolutions of the pinion and balance wheels to one of the driving wheel or crank.

4th, of two rollers for propelling the straw toward the mouth of the box or feeding the machine, lying immediately behind and nearly in contact with the mouth, one being placed above the other. The rollers are of the same length of the width of the box at the point where they lie, and each four and a half inches in diameter the upper one having thin ribs of iron let into or fastened to it, extending from end to end, and about one inch and a quarter apart around its circumference, and standing out about one fourth of an inch from its surface. This roller lies within the box as low as the bottom of the mouth, and by means of a small perpendicular opening or slot in each side of the box through which its axis passes, is capable of rising up about two inches, so as to accommodate itself to the quantity of straw that may at any time pass under it. The under roller lies partly below the box and between the side timbers of the frame, the upper side rising as high as the bottom of the mouth of the box, and it is held to its place by its axis resting in boxes or bearings placed in the lower angles formed by the side and front upright timbers of the frame. On the side of the machine upon which the crank above mentioned is placed there are two fingers or long cogged wheels afiixed to the axes of the rollers, of such diameter or length of cogs as to operate into each other, whether the rollers be in contact or two inches asunder. On the opposite end of the axis of the lower roller is a fine-toothed ratchet wheel about four and a half inches in diameter. The finger wheels and ratchet wheel operate on the outside of the frame. In order to give the upper roller suflicient pressure upon the straw, both to move it forward and retain it with firmness, a spring is placed below the box on each side, from which a wire passes up, near the ends of the roller, and around its axis, which retain it in connection with the springs and at the same time allow it to rise freely as above described.

5th, of a cam or irregular rimmed wheel attached to the axis of the balance wheel, and which also forms the axis ,of the cam, with which is connected a small upright shaft or working beam and an arm or hand extending to and operating into the ratchet wheel. The cam is formed and may be described thus: Suppose a wheel four inches in diameter and one and a half inches thick. Take a point or place of commencement on one edge of the periphery, and from thence pass round the wheel by a straight line, except observing the curve of the wheel, to a pointthree fourths of the circumference on the opposite edge, then pass on by a similar line or a continuation of the'same line, one fourth of the circumference, to the opposite side from the last mentioned point, which will arrive at the point of setting out. Let these lines, or line, as it is but one, be one fourth or one eighth of an inch in width.

Then let the residue of the wheel be cutaway, except that part coveredby or lying under this line, toward the center as low as the shaft of the balance wheel or leaving suflicient only for a hub, and it presents the form and construction of the cam, being a V wheel with an irregular periphery and corresponding sides, and vibratlng, when turned, from one side to the other 'of its original thickness. The cam is placed upon the shaft of the balance wheel between its.

two bearings about half an inch from the bearing of the pinion wheel, and is cast with or upon the balance wheel shaft, or

may be made and cast separatelyand afterward fitted to its place. The upright shaft or working beam is attached, at its upper 7 end, near the top of the straw boxand'turns on a pivot, on a line perpendicular from the inner edge of the cam and extends downward as far as the center of the cam, and

there by a forked end or claw, embraces the cam'in such manner as'to allow its edge or rim to revolve freely through it, while at the same time the lower end of the shaft will move back and forth, parallel with the i side of the machine, with the vibrations of the cam. Behind the upper end of this shaft is'placed a block or projection from the box, to bring it out and sustain it in its proper position and into which the pivot upon which it turns is fastened. From this wheel and its shaft, the hand, by the vibrations of the upright shaft, will alternately advance and V recede turning the ratchet wheel and rollers as it advances and when it recedes the dog will prevent them from receding with it. The cam is 'soplaced' upon the shaft of the balance wheel that while the knife is cutting or passing the mouth of the machine, the hand shall recede by the action of the shortest segment or inclined plane of the cam, and that-while the knife is passing through the residue of its circle the rollers are made to turn and feed the machine by the action of the longest inclinedplane or se ment by which means the straw is con v stantly moved forward and the machine fed while the knife is revolving without cutting,

is e and remains stationary while it is being cut."-

This *contrivance =is -made to feed with greateer' or less rapidity so-as to cause the straw to be out longer or shorter at thej pleasure of the operator, by having several give the requisite sweep 'for the degree of feeding required.

6th, of a bar of cast ironextendingacross the front end of the machine, the upper edge of which is of-the same height as the top of the under roller or the upper sides of the side timbers of the frame at the bottom of the straw box, and also extending along the side timber of themachineneXtthe-bztlance wheel, backward as far as the bearing of the pinion wheel and also about five inches along the opposite side timber. This bar is about two inches in width or corresponding with the width of the side timbers, and one fourth of an inch in general thickness, and is firmly attached to the frame by screws or bolts, and to give it the greater stability and render it the less liable to yield in any part, a brace or connecting bar may be extended across the machine, uniting the two ends of the bar above described. This connecting bar should pass over and lie upon the tops of the side timbers till within the box where it must turn downward, conforming with the timbers, and be let into the wood in its descent, and thence across under the bottom of the box, forming a support for the bottom. The hearings or boxes in which the pivots or journals of the balance and pinion wheels operate, or the lower halves of those boxes, are formed upon and cast with this bar, the upper halves being cast separate and attached by screws. Three sides of the mouth of the machine, that is the lower and perpendicular sides, are also formed upon and constitute a part of this bar, the upper side being formed of either wood or iron and attached separately to the frame. The extreme outside or outer edges of the mouth project about an eighth of an inch beyond the general surface of the bar in front, and the knife in revolving is made to come in close contact with this projected part of the mouth, without being subject to come in contact with any other part of the bar. The bearings or supports of the balance and pinion wheels, and that part of the mouth where the knife cuts the straw, being thus formed upon and constituting parts of the same bar or frame of iron, which will re-' main firm and unyielding by the ordinary use or operation of the machine, will at'all times insure precision in the stroke of the knife, and however the other parts of the machine may yield or become displaced the accuracy of the stroke and cutting of the This' iswa tdehitherto a sired than can conveniently'be atta-ined wvith I one k'nife, :an wadd'itional I one, like: the one described and attached in the same" manner, may be adapted to the' opposite-side ofr'th'e wheel, so "as to give =Tt=wo r-strokes of the knives to one revoli'itionofitheavheel. =When this is: desired," the cam: must be iforme d" or 1 divided into two segments or inclinedtplanes of equal length, but in other respe'ctsssimilar to that above described, and the working beam 1 or upright shaft 'must the supported and turn on a pivot in its center, having an arm like the one above described, extending from each side of the pivot and both arms or hands must act upon the upper side of the ratchet wheel. By this arrangement, when the machine is operated, one hand will advance while the other recedes, and keep up a continued motion of the. ratchet wheel and rollers and consequently a uniform and regular feeding of the machine.

The bar above described, extending around the front and sides of the machine, and which may be called the supporting bar, instead of being formed or cast together with the bearings and mouth in one entire piece, may be formed of several parts, but permanently and unyieldingly fastened together by screws or otherwise so as to attain the object desired.

E xplrmaton of the drawings.Figure 1 is an isometrical view of the machine. A B' is the frame, showing th straw box at A. C is the balance wheel; exhibiting a view of the knife a (lying across the mouth of the machine 0) attached to the arm and rim, by the bolts and nuts 6 b. The set screws are shown at d, cl, and the project-ions upon which the knife rests at e e. The shaft or axis of the balance wheel is seen at f and its bearing at g. The bevel wheels are shown at h ,i,h being the driver and 2' the pinion.)

section through upper roller exhibiting a view of the ribs,

each resembling the one a. The finger wheels are seen at F, F, a spring to keep the upper roller downit being connected with it by a wire, see 0, Fig.1. 7 Fig. 4 is a section exhibiting a view of the i supporting bar G detached and showing the let";

bearings or boxes in which the pivots or journals of the balance Wheel shaft rests at a and the upper half of the box I) screwed on. The three sides of the mouth which are cast with the bar are shown at e e e. is a brace cast with the supporting bar.

W hat I claim as my invention and desire to secure by Letters Patent is 1. The combination of the knives, and setscrews, with the balance-Wheel, in the manner herein described; so that the edge of the knives can be accurately adjusted to the mouth of the machine; and also so that a straight knife is made to cut obliquely across the mouth of the machine in the manner described Without gathering the straw to one side.

2. I claim the combination of the cam on the mouth of the machine all in one piece,

for the purpose herein setforth.

4. I claim, placing the shaft of the balance or cutting Wheel below the mouth of the machlne on one side 1n the manner above descr bed.

ISRAEL J. RICHARDSON; l/Vitnessesi J. J. GREENOUGH, RICHARD KEY WATTS.

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