US8178A - Machinery toe - Google Patents

Description

JW@ w.

AM. PHOT0*LITHO. C0. NX. (OSBORNE'S PRDCESS) UNITED sTATEs PATENT oEEioE.

sYLvANUs sAwYER, or TEMPLETON.;MAssncHUsETTs.

MACHINERY FOR `CIITFJINGr RATALI, C.

Specification of Letters `Patent Nlo. 8,178, dated June 24, 1*85-1.

To all/117mm "it may concern.'

Be it known that I, SYLVANUS SAWYER, of

Templeton, in "the county of Worcester and State of Massachusetts, have invented a new and useful Machine for Cutting Canes or Ratans Into Strands for Chair-Seating and other Like Purposes g, and I do` hereby declare that the following. is a full, clear,

and exact description of the same, taken in connection with the accompanying drawings, making part of this specification, in which- Figure l, is a side elevation; Fig. 2, a plan; Fig. `3, an end elevation,` and Figs. 4L and 5 are details drawn `to a larger scale of `certain parts ofthe machine, to` show more clearly the principles of their` operV` ation.

The first part of my invention relatesto an apparatus forremoving the joints or any other excrescenceffrom the surface of the ratan preparatory to` cutting the same into strands; and consists in subjecting the. stick of ratan, while drawn longitudinally,` to

lthe action ofa series of cutters or Scrapers of a certaindescriptiomso formed that they will cut off4 the :protuberances` of the cane without cutting into it; and so placed asto act upon all parts of its circumference.. i

The second part of my invention relates to an improved method of cutting or split ting the cane `or ratan into strands (so called) of the proper form for chair seating or any other required purpose; and; may in some respects be considered as an improvement upon the methods for which Letters Patent were granted to me November 13th 184:9; and consists in cutting the several strands from the `surface of the cane by cutters of the proper form which are gaged` so as. to cut to a certain depth and are ap` plied so as toact upon 1the cane whileit is bent out of a straight; line, in such a manner as that the edge of the cutter shall act upon the external part of the curvature, by which certain new and useful results are obtained and certain diiiiculties avoided as will be hereafter more fully described.

The machine is described as follows, th letters referring to the same parts in all the figures.

A is theframe ofthe machine upon which the several parts thereof are arranged. y

B is the stock of that part ofthemachine called the.` t scraper. Itis made` of cast iron and of such form as to receiveu the several parts which are aflzred theretoas shown in the drawing.

C, G, &c., are leversV which carry the sev` eral cutters or Scrapers. a, a, &c., which act upon the stick of; ratan as :it is drawn liongil,` tudinally between them. They are attached tofthe stocklB,by screws c upon whichthey vibrate as a center. The` cutters a are set in mortises near the outer ends ofthe levers C andare secured thereinby1 the set screws They` are set at an angle o f about forty?` live degrees with the central line of thestick of ratan upon "which they act. Theircutting edges are hollowed to conform to the circumferenceof thestick, and;r they are are" ranged. so as to act upon all sides of it as shown in the* drawing. The bevel? of their cutting edges is also made atan angle'of fortysive degrees with the face ofA the cutter, so thatiit` is parallelwith, andV con,`

nally` as is shown more clearly in Fig.w 5;

By 'this means the cutters are prevented` 4rlhey turn uponthe screwed, as a `center which are fixed in the stock B. 'Ihey are made ofthe form shown and are connected with each other and withl the handle Df by 1` the links eZ. so that by moving the handlegin the direction ofthe arrow the cutters a are all moved asunder simultaneously in a` per` fectly obvious manner.`

n E', El, EL., lili-,are feeding rollers by which i the stick ofl ratan is carried forwardthrough the machine. The first pair seizes it after 1t has passed through the scraper l" and 1 the last pair, after it` has passed all the cut-` ting apparatus.` as. is shown inthe drawing.`

`Other additional feeding rollers may be' usedI if the nature oftthework it. The rollers E, Eware shall require the. rollers" El: E3aremovable so as to ac- After the asthe surfaceswhich bear upon stationary," but comodate the varying diameter of the stick, and they are forced against the same by the springs J J 1. x

F, F1, F2, F3, are rollers called bed rollers which serve to hold the ratan in the proper position while being cut and also to assist in propelling it forward.y They each work in separate combinations as will be hereafter described.

G, G1, G2, G3, are the several cutter stocks or sections to which the cutters I-I and gages I are attached, which cut the several strands from the stick. The cutters H are made of a gougelike form with the edges of such shape as will give a proper shape to the strands. They are each placed in a groove of the proper form in the stock G and the open side of each is covered with a plate or cap k, w,hich leaves a tubular aperture through the entire length, through which the strand is discharged as it is cut from the stick They are held in place by the set screws t, or they may be affixed to the stock by any other of the well known modes by which such adjustments are made. I, I, &c., are the gages or guides which determine the distance which the cutters I-I are permitted to cut into the wood and consequently the thickness of the strand. They may be made with rollers j to bearupon the stick as shown on the first stock G, or they may be made solid of the form shown on the stocks G1, G2, G3. These bearing surfaces are so formed and placed in such relation to the cutters, as that the point of the same nearest the cutter shall be a very little back of the cutting edge so that the strand will be slightly compressed in cutting it. They are also fastened to the stocks G, by

yscrews i or by any other analogous means.

The edges of the cutters I-I are set in such a manner as that the bevel of the cutting edge shall be nearly tangential to a circle concentric with the bed rollers, so as to present it in a proper manner to the curved stick of ratan upon which it acts; and produce but a small deflection of the strand as it is removed from the surface of the same as will be more fully explained.

g is a part of the stock G which projects below or back of the cutter and forms a guide for the stick after it has passed the cutting edge and serves in connection with the bed roller F to bend the stick so as to p-resent the external curvature of the same to the action of the cutter as is shown more clearly in Fig. 4. The face of the guide g is made of such form as to fit the cavity left by removing the strand, which prevents the stick from rolling and guides it properly to the succeeding cutters so that they shall act at the proper point in the circumference and not run into the space from which the strand has been removed.

Each of the four stocks G is made in this machine to carry two cutters and they are set in such relation to each other as that the cutters will act upon all sides of the stick; and also that the stick in passing from one to the other, and over their respective bed rollers shall be bent so as to present the proper curvature to the cutters in each section. There may be one or more cutters in each section or stock asv may be required; but when two or more are used their cutting edges should be placed, one a little before the other as shown in the drawing, so that their actions shall not interfere. A sufficient number of cutters may be used to remove the entire surface, varying the number of cutters to the size of the ratans and also to the size of the strand; or a single section only, with one or more cutters may be yused to remove only a part of the surface as shown in Fig. 4. By the single section, t-he whole surface may also be removed by repeating the operation and presenting successively the different sides of the ratan to its action in a perfectly obvious manner. The rst stock G is fastened rmly to the frame A and its bed roller F is made so as to move to and from it to accommodate the varying size of the ratans. It is pressed toward the cutters I-I by the spring K in a perfectly obvious manner. This arrangement of the cutter stock and bed roller may be modified in various ways, as is exemplified in the three other sections. In the second section the bed roller F1 is stationary and the cutter stock G is attached to a sliding bar L1 which is properly guided so as to move to and from the bed roller, and is pressed toward it by the spring K1. And in the third and fourth sections both the stocks and the bed rollers are made to move and are attached to vthe sliding bars L2 L3 and M, M1 respectively, which are made to move simultaneously in opposite directions through the intervention of the small balance levers l, Z, which turn upon centers fixed in the frame A at m. They are forced together by the springs K2 K3 respectively which act uponthe sliding bars L2, L3, in a perfectly obvious manner.

amount of curvature in the stickthough the size thereof may vary; while in the two first examples the curvature varies in some degree with the varying diameter of the stick. The bed roller may also be dispensed with and a rest with a curved surface may be used instead and made stationary or movable as the case may require.

The feeding rollers E, E1, E2, E3, and bed rollers F, F1, F1', F3, receive their motion from the main driving shaft O by means of the pulleys P, P1., and belts Q, or by any other method of gearing which will impart the requisite motion to them respectively.

The operation of the machine is as fol- This last modef has `the advantage of preserving the same' lewe The machine keine` `im motiorrthe operator raises the handle D andopens` or draws back all the cutters of thefiscraper so as to freely admit thestick of' ratan which is inserted until it reaches and is seized by the first paiir of rfeeding rollers E E. The handle D `is thenreleased and the cutters a are forcediforward the springs e so as to act upon the surface `of the stick; and as it `is drawn forward by the action of the feeding rollers they remove from it any parts which may project above its genaral surface as has been already described. The stick afterleaving the first pair4 of feeding rollers passes between the bed roller F and the cutters H of the rst section G, by which two strands are removed; and along the guide g by which the necessary deflection of the stick is produced and it is guided tothe next bed roll F and section G which are placed in such a relative position as to act-upon the opposite side of the same and toremove two more strands,

`and so on to the other sections, each of which is placed insuch relation to the preceding as that the stick in passing from one to the other shall be roperly bent; and also that each cutter shall act upon a dierent part of the circumference. After the stick has passed the last section G3 it passes between the last feeding rollers E2, E3, which assist in drawing it forward, and the remaining pith or heart is discharged from the machine.` The bending of the stick at the point of cutting is of great importance in the practical worlng of the machine. When a small portion is split ofi" from a large piece in the manner that the strand is removed from the stick of ratan, there is a strong tendency of the strand to run 0E as it is called; and also in cutting olf-a small portion in the same manner in the form of a shaving, it leaves a smooth surface upon the Astick but a rough or broken one on the shaving on account of its being unduly bent in the process of removing it. But in cutting ratan into strands it is of more importance that the inner surface of the strand shall besmooth, rather than the stick. Both the `difficulties mentioned are obviated by bending the stick 1n the manner described, for thereby the strand is but little bent in remo-ving it, and in flaying it olf from the stick it runs in until it is stopped by the gage. y i

The several part-s of this machine may be variously modied and still retain the general principles and character thereof. As-

for instance that part` of themachine called the scraper may be detached from` the machine `and used separately for the pur-` pose of preparing `ratans to split by hand or otherwise; and also the several cutters or Scrapers may be attached to stocks moving in guides, instead of the levers Cas to the ratan are not material; the essence of thispart of my `invention being the `method `of removingexcrescences from the surface ofthe ratan by` a `series of cutters or Scrapers substantially as described, t-he edges of `which are hollowed to conform to the circumference of the ratan, and the bevel of whose cutting edges conforms longitudinally to the surface of the samegso that while it removes any matters which may project above the general surface, it cannot cut into the same; and also that by the same means the Scrapers may be kept sharp and in order by the wearing of the same by this stick. And so also instead of using the Scrapers in pairs acting opposite Vto each other; they may be used singly with a rest upon the opposite side of the stick instead; or a less number of scrapers may be used acting upon only a part ofthe circumference at a time; these being mere varieties in form Iwithout at all changing,

theprinciple. And so of the second part of my invention; various other equivalent mechanical devices may be used for producing the same result instead of those herein described, without departing from the principle of this part of my invention, which consists in cutting the strand from the stick with a cutter gaged to out to a certain depth,the stick being bent so as to present the external curvature thereof to the cutting edge; by which the several advantages herein before described are attained, and the work is done more perfectly than by any model heretofore known.

What I claim as my invention, and desire to secure by Letters Patent is: i

l. I claim the combination of the cutters a as described with the levers C and springs e and same D o-r their equivalents, and also handles'D and links d for the purpose of applying said cutters or Scrapers so as to` act upon the stick of ratan in the manner herein` described and by which they may all be operated simultaneously substantially in the manner herein described.

2. In the process of cutting cane or ratan into strands as described I claim bending the stick at the point at whichthe cutter is removing the strand from the surface.

` 3. I claimthecombination of the elements which compose each simple section of the cutting apparatus `that is to say, of the cutter H and gage I with the stock G and guide g, and bed-roller F or their equivalents substantially as described for the purpose of bending the stick and removing the strand therefrom, whether said section is used alone, or is combined with others as described.

4L. I claim the combination of that part of the machine called the scraper with the "i feeding rollers or their equivalents, and the stantially in the inanner herein described several sections of the cutting apparatus; and set forth. 15 said sections being so arranged in relation to Athol June 3d 1851. each other as that the stick in passing from the one to the other shall be properly bent; SYLYANUS SAWYER i and also that the several cutters shall act In presence ofupon different points of its circumference; CHAS. FIELD, the Whole being arranged and operating sub- C. H. BLISS.

Images