USRE604E - Improved shingle-machine - Google Patents

Description

' Uri-tren -Srarns' 'armar @trienio JAMES CBA'RY, 0F MIDDLEPORT, OHIO.

IMPROVED SHINGLE-MACHINE.

Specilicution forming part of Letters Patent No. 18,681, dated November 24, 1857; Reissue No. 64ML, dated September 2B, 1858.

To all whom it may concern,.-

Be it knownl'that I, JAMES CBARY, of Middleport, in the county of Meigs and State-of Ohio, have invented a new and useful Im.

provementinShingle-Macliines; and Idohereby declare that the following is a full, clear,

and exact description thereof, reference being;

had to the annexed drawings, forming part of this specification, iu which- Figure 1 is a longitudinal vertical sect-ion of my machine, the plane of section being through the center. gitudinal section of my machine, showin gthree shingle bolts riven, the 'lowest one being about to be shaved, andthe froes about to rive three more bolts from the block of wood. Fig. 3 is .a similar section to Fig. 2, excepting that one lbolt has nearly passed through the shaving -knives and the knives have entered the block ot' Wood to rive three more bolts. Fig. 4 is a plan or top view of my machine. Fig. 5 is a. plan or top view of the sliding frame and feedboard, showing its connection with its rack and feed-board.

My invention lconsists in certain improve-v ments, hereinafter specified, in Amachines for riving and shaving shingles-that is to say, in the use of a set of two or more frees for riving two or more shingle-bolts from a block of wood at one stroke 'of the machine, thus obviatin g a great diiculty in riving shingles by 4machinery,.that the bolt is apt to eat toward the point, splitting oi too thin and short, to form a shingle; also, the use of brace-bars, arranged so as to receive the frees, which encase-tliemselves between the bars, and thus'inv sure the perfect splitting and separation of the shingle-bolts from the block of wood; also, the arrangement of the shaving-knives in con verging grooves to secure an uniform approximating motion as the bolt passes through them from buit to point; also, the-peculiar arrangement and combination of a lever and lits pin with cams for the purpose of communicating the proper relative motion to the vibrating feed-board, driver, and frame wherelby all the bolts riven at a single stroke of the machine are, during the next stroke and while another set of bolts are being severed from the block, successively driven through the shaving-knives, and yet only one at a time, 4no

Fig. 2 is a vertical lon- 1 matter how short or thin the bolt may have been froed.

A great difficulty experienced in shinglemachines which rive a single bolt at a time from the block of wood is that the bolt is apt to split too ne toward the point or thinner at one side than the other, and where more than one bolt is in the machine awaiting the operation of the shaving-knives it'is very difoult to adjust the operation of the-machinery to bolts of various thickness so as to carry one only of the bolts at' a time to the throat of the shaving-knives. These difficulties are successfully obviatcd by my machine, which is also so arranged that at each stroke of the machine a number (two, three, lor more) of bolts are riven,aud during the same stroke the same number of bolts riven at previous stroke are successive] y shaved.

.In order to enable others skilled inthe art to make and use my improvementsI will proceed to describe their construction and operation.

In the drawings, A is a strong rectangular frame, within which the several parts ot' my machine are placed. In Fig. 1 those parts of the machinery above the level of the bedplate H operate to rive the bolts, and those parts below the level of'H operate to shave them. My drawingsl represent the machine arranged with three froes, J J,&o., which is a convenient number, but it may be made with only two, or with more than three, as may be desired; but as the bolts'riven by the machinery above H at one stroke or revolution l-of the shaft are at the next revolution all shaved one after the other, the pitman -F gives one stroke to the frees, whilethe pitman K, which operates the apparatus for carrying the bolts to and forcing them between the shaving-knives, makes three strokes if there are three frees in the machine, -or as many strokes in the same time as there are bolts riven at one stroke of the upper pitman, F. This is effected as follows: N ear the rear end of the machine is a perpendicular shaft, B. This shaft carries two pinions. One, C, above the level of the bed-plate H, gears into an endless rack D, and the other pinion, C', below the level of the bed-plate H, gears into the cndless rack E. The relative size of the pinions obliquely to each other,

'..PL5- I l' -springs, a.' a', which are united at their extremities by the driver j, placed parallel to the bar Gr. Atl either end of the bar G are three arms, I I I, projecting horizontally from the bar G, parallel with and near to the sides A A of the machine; and to the end of these arms are attached the frees or riving-knives J J J, placed horizontally one above the other,'

parallel to the bar G, above and alittle inside ofthe outer edge of the driver j; These frees J have their knife-edges lpointing inward toward the bar G, and each froe is carried by its two arms, 1 I. The bar G and guide! -springs a' a' slide upon and are supported by the bed-plate H, which is a horizontal shelt',

firmly fixed to the frame A A of the machine,

and extendingfrom the bar G to a point a .little beyond the edge of the driver f, (when the har G is drawn back,) the projecting end of the bed-plate H forming a ledge, e. Each 4of the arms I has two wrists,

end, which project through slots b b b in the sides of the frame A A. These slots are set working infthem not only guide the frees J J to enter the block of wood at a uniform distance apart, in order to make the butt ofj each shingle of a like thickness, but also canse the frees to separate 'as they recede through the block of wood, in order to allow for the passage of the bolts which are being riven between them and to aid in the riving process and to give space for any curves,-ine

qualities, or unevenness in the grain of the block of wood T from which the `bolts are being severed.- Between the frees J J are placed horizontal bars, J' J', (two of them4 when there are three,froes,) firmly attached to the sides of the machine, as the pressure of the block T when the frees are riving comes against them. These hars J J are exactly parallel to the froes, and placed at'the inner' end of and between the slots b'b, so that.

when the froe's are drawn back through the block ot' wood T they incase themselves between these bars 'J' J', thus insuring the cntireV separation of the bolts from the block of wood T.

I have thus described the construction of the upper ory riving portion of my machine, and its operation is very simple.

The frees J J J being at the end of their outward stroke, (in the position indicated in Fig.

2,) the block of wood is placed on the gage- ?springs a a', between the edge of the froes a., one at eitherv so that the wrists n a,-

and the bars J J', bein g supported bythe bedplate H. The inward stroke of the pitnian F forces the froes through the lower edge of the block T, the frees being accurately guided by their wrists a. a in the oblique slots b b, and kept so far apart during their passage through the block as to prevent their choking or stick'- ing fast. Thus the frees pass through the block of wood and incase themselves between the bars J J', leaving the three bolts to fall down one on top ot' the other, with their butt ends on the feed-board O, and the other ends resting on the end oi' the driver f until, on the return stroke of the pitman F, the driver f pushes them oi-onto the ledge c, or projecting end ofthe bed-plate H, (sce Fig. 2,) whence they are afterward drawn down level onto the feed-board O in the lower part ofthe machin c, as hereinafter descrbed,where they go through the shaving or tapering process, which I will proceed to explain.

Immediately below the bed-plate I-I is a horizontal sliding frame which slides inside of the frame of the machine, the side pieces L L being placed parallel with and resting against the side pieces A A of the machine. This sliding frame is composed ot' two side pieces, -L L, united to a horizontal board, N, which acts as adriver, as hereinafter explained. This sliding frame is pi voted at 1I (on the bozud N) to the pitman K, and thereby receives a continuously reciprocating motion, making three complete strokes (it' there are three i'roes in the machine) for each complete stroke oi the frees, as before explained.

The side pieces L L of the sliding trame have each two converging slots, c c, made Vthrough them. The Obliquity of these slots is made to correspond with the taper to be given to the shingles.

M M' are a pair of shaving or tapering knives, placed at the forward end ot' the machine, with wrists 7c k, which pass through thc converging slots c c in the side pieces L L ot the sliding frame, and through vertical slots d 'd in the side pieces A A of the machine. When the sliding frame is drawn buck as seen in Fig. l, the side pieces L L are within the machine, and the knives are, by the joint Aaction of thev vertical slots d d and converging slots c c, opened as far apart as possible; but when the sliding frame is pushed forward to t'orce'a shingle between the knives M M' the side pieces L L project beyond the frame A A, 'as seen in Figs. 3 and 4, and the knives are gradually drawn together by the action ot' the slots c and d. on the wrists 7a ofthe knives M M'.

Immediately in front of the knives are two throat-plates, placed vertically and extending across the machine. The top of the lower throat-plate, V', is on a level with the edge of the under shaving-knife M, and the bottom of the upper throat-plate, V, is on a level with the edge of the upper shaving-knife M, thus leaving a space between the throatplates V V just wide enough to allow the butt-end of one shingle-bolt to pass to the knives, but no more. The upper throat-plate, V, is fastened to the machine by springs l l, to allow of any unevenness inthe bolt as it passes through the throat-plates to the tapering-knives. The lower throatJplat-e is rmly iixed.

Between the sides L L of the sliding frame is situate the feed-board O, placed in front of the driver N, (see Fig. 2,) but `just below its level, so as to slide under it. The feedboard is so connected -with the sliding frame L and its driver N that whenever the driver is pushed forward toward the knives M M the feedboard O reeedes under the driver, as seen in Fig. 3, and vice versa, whenever the driver N is drawn back, the feed-board advances to.- ward the knives M M. This vibration ot' the iced-board O in a direction contrary to that of the driver N and sliding frame Lis effected by a lever, P, (see Fig. 5,) hinged or pivoted at one end (at M) to the back edge of the feedboard 0. At its center n the lever P is pivotcd to a erossbar, Q, (see Fig. 3,) in the frame A (which does not, of course, move with the sliding frame L.) The other end of the lever P (opposite to m) has a pin, R, attached to it,

which pin enters a recess or sunken cam, g, in-

the under side of the driver N in the slidingr frame L. Thus, when the driver N is pushed by the pitman, K inward toward the shaft B, the pin It at the end of the lever P passing 4inward while the center of' the lever (at n) is fixed to Q and stationary, it causes the lever l to turn and presses forward the feed-board O (pivoted to lever P at m) toward the knives M M', and on the return stroke of the pitman K the projecting cam S (which by coming in contact with lever P when the driver N presses toward the knives M M) reverses the motion oil the feed-board U and draws 'it hack under the driver N. The feed-board O-is fxfrnished with a row ot' steel points or teeth,s s s, placed p near its outer edge,'which point obliquely outward, and are designed to catch the lowest shingle and draw it from the ledge e entirely onto the feed-board, so that it may be passed th rough the knives M M.

When the bolts have been froed, as before described, and lie the bottom one with its butt resting on the feed-board and its other end against lthe ledge e of the bed-plate H, and the other bolts' on top of the lowest one, as the pit- 1 man F recedes to cut another pack of bolts,

the pitni-an K also recedes and draws back the driver N, but pushes the feed-board O forward toward the knives M M. The teeth s s s catch the undermost shingle and draw ito' the ledge e, level on the feed-board in front of the opening between the throatplates V V' (see Fig. 2). The pitman K then returns and the feedboard 0 recedcs, while the front edge of the driver N pressesv against the endof the bolt and forces it through the throat-plates V V' and between the knives M M. As the bolt passes through the knives, the slots c o in the sliding frame L L canse the knives M M to converge uniformly, and in so doing they shave or cut the shingle on both sides, tapering it froln butt to point. (See Fig. 3.) the finished shingle has passed through the knives ont of the machine the second bolt is 'I caught' by the feed-board O and placed vbetween the throat-plates and then4 shaved, and so on, all three bolts being finished by the time the froes have rived three more bolts ready for shaving, and thus the machine is kept in nninterrupted operation.

Having thus described myimproved shinglemachine, what 1 lclaim as my invention, and desire to secure by Letters Patent, is

1. Alhe use of a set of two or more froes, arranged substantially as hereinbet'ore described, for the purpose of riving two or more bolts from the block of wood at the saine time, thus preventing the tendency of the Wood to eat out or split too thin at one end or at either side.l

2. The use of brace-bars, or their equivalents, so arranged in combination with the froes as that the froes will incase themselves between them` thus securing the perfect scparation and delivery of the boltsl from the block.

3. The use of sliding side pieces L L with converging slots c c, in combination with the upright grooves d d in the frame, in which the wrists of the shaving-knives are inserted for the purpose of effecting the gradual approxi- .mationof the shaving-knives in the proper taper of the shingles.

4. The combination of the lever P with its pin It, the projecting cam S frame L L, for the purpose of communicating the requisite 4relative motion to the vibrating feed-boardO, the driver N, and frame L L, whereby one bolt only at a timel of the two, three, or more r-iven by the froes is driven outward a-nd forced through the shaving-knives, no matter how short or thin the bolt may have been froed.

In testimony whereof I have hereunto set my hand this 28th day of July A. D. 1858.

' JAMltS ORARY.

Witnesses:

MARTLN G UUsHING, L. l. STONE.

So soon as and cam gl on the'

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