US3719A - photo-utho - Google Patents

Description

- HERvEY LAW, or nourri Generative MACKIE@ FOR .CUTTING MTCH'SPfINTS Specification of Letters Patent No. 3,719, dated August 2 8, y185A; hnteleted Fehrnary 28 lflllll i T all whom t may concern f" Be it known that I, HERVEY LAW, of Wilmington, in the county of New Hanover and VStat-e of North Carolina, have invented a 5 new and useful Machine for Making Round Splints yor :Sticks for Matches; and I do hereby declare that the following is full, clear, and exact description of the construction and operation `of the same, reference being had to annexed drawing,` ma ring part ofthis specification, in whichf Figure l is the front viewer elevation;

Fig. 2, the plan or perpendicular view look-` ing down upon it; Fig. 3, the section side elevation.

I have a cast iron plane or plane stock A, A, about l feet long and 5 inches wide, l near the center of which isan opening B, to receive the bed of tools arid to allow the shavings to pass through on the other side. The bed C, containing the tools is apiece of iron about 5 inches long by `Zinches wide, let into the opening as seen at B, so as to be flush with the face of the plane A A `and secured to it by screws. The tubes or cu`tting tools D are formed from small square bars of steel eilt away on one side so as to form an offset the whole depth of the cylinder or cutting part of the t'ools and leaving a projection" on ioneend of the piece the length of the tube. The cutting parts are holes or cylinders drilled through the projecting part of the ysteel lengthwise with the bar, and liled soae to formcutting edges, the back being filed away so as to forni a basis or bevel assembling the bevel of a plane ironias seen inNos; "1, 2, 3, and 4. I make the tools insets of three tubes in a s et. i There may be more or less. I secure them to the bed C by means of screws passing i through the necks ofthe tubes. `There are several objections to placing the G Ubs so that all will Stike the wood at the same time. `In that case they are apt toisplit out the wood and do their work 'imperfectly They must also` spread more 'and waste wood and it isdifc'ult not impossible to prevent the lodgnient of wood between.

them." It is therefore of Lvital importance i that one set should be placed forward and the neXt set back or somewhat behind the first set` alternately as seen iii`Nos. 7 and 8. All of the tubes areof course even or flush on the face toward the wood to be worked. The frontset eftubes may be plain, but

th had@ Set est have Heisser Wiege 91,1

i each outer side of the set at right angles i loose shavings and prevent the operation of with the set, in a line lengthwise the'tubes Seen @No-2; @neef the NO- 2 Showing the flens'esbmeuhat reduced either Qfvhh eo be used. The flanges fit up'olos'e tothe necks gif the PlleC'Ulg Set aan@ fill lll"Y the Vely OblQCJQQIIllblQ ...lelingsdtllat "YQllld i otherwise be formed between the two 'sets in their alternating positions, "Openf ings would forni a lodging Pla@ `for' the the machine." The flanges not only llh'up their openings, but they Acatch the loose shav ings madeby the projecting` set and them` out with the other shavings through the opening in the Plane Stock t theths side, and are therefore of vital importance to themachine`-` All experimenters in SPlint machines have met `with the dilliculty" of 'setting rid Of the Shevnes, and if they have' Y tried Sets have been obliged to eberdn them and resort kt0 Single tubes and thbs@ connected Awith the plane stocks by "exf,` tremely thin necks t0 present the Smallest so obstruction 'possible to: the wood land lrel quiring that after one operation a planeiron ,i should go over the face of the wood` t0 smooth and prepare it for the neXt operal tion of the tubes. Mine makes cleanework 35 as it goes and without any other tool throwing the shavings out on one side of the machine and the splints on the otherby the same operation. The least pbstruction `in the wood will knock off all of the thinneck tubes that come incontact with it. Mine as I have very frequently done willl cut through a pine knot aslarge asa mans ger without injury to the" tubes. A' The "plane with' the bedof tools is sup- 95 ported edgewise by a frame and pair of waysE E-E E one belowandl the other above, and traverse back and. forthby means of the connecting rod Toseycure and feed up the timber to be 10o worked I have a frameG, G, Gr, Sfeet long andiwide enough to receive with facility the longest lengths to be worked. This frame is secured to the timbers supporting the machine directly in front ofthe plane, and a bed or yfloorH is` laid in it reaching npor nearly up'rto theplane and ythis Hoor is i dropped down below the top of the frame,\- sfo that the timbers of the frame on each if side will stand above the bed `or floor about 1`i\ Qinches, thusforrninga groove orchannel f wide enough to reeeiv'e the whole the wood to be worked, into which channel. the wood is to be dropped. In order to hol-d down the wood and secure it for working I bring down upon it a movable piece or lip I in such a manner as to adjust itself to any thickness and I secure it down by a wedge J which passes through the timber K that supports the upper way on to the top of the lip I, the top of the lip having a wedge like form to correspond with the wedge J. When a thick piece of wood is worked the wedge will pass but partially onto the lip and when a thin piece is put in the wedge will pass farther over and secure the piece whether thick or thin, or if there be several pieces, one on top. of the other, it will hold them equally well.

Thisv arrangement for feeding, affords me many decided advantages over any other' machines now in use. It enables me to make splints of long lengths, greatly increasing Y the quantity, and diminishing the cost of making. I can work split wood as well as sawedplank of various shapes or of several thicknesses and I can readily shift a piece of work around knots, or to change the position of the grain of the wood. I work the wedge by attaching it to a jointed lever L one end of which passes over the machine to within reach of the man that tends it by which means he can pull the wedge on to the top vof the lip or throw it out at pleasure or the wedge V'may be thrown in by a weight attached to the jointed lever by a cord. I do not consider this weight as necessarily belonging to the machine, but as it is shown in themodel and some notice is taken of it in the drawing at Z I will say that I have used it by fastening a cord to the jointed lever where it connects with the wedge and passing the cord round a pulley o-n the timber K directly over the wedge and then along the top of the timber to near the farther end of the same, and then down through the timber toward the floor. I there attach a weight to the cord which operates to throw the wedge in. The lip I support by two arms M at tached to the lip, one at 'each end, passing from it to the eXtreme end of the feeding frame, and these secured by pins or journals to allow the lip to rise vand fall as re- Y quired. After thus securing'the plank to be worked sufficiently tight to answer the required purpose I force it forward the necessary distance at each vibration of the plane by means of a follower N working on the bed H, running in grooves at each side and coming up behind the plank or wood and thus forcing it forward against the cutting irons while the lip holds it down upon the bed. The follower is carried forward by the common contrivance of a rack and pinion wheel O, to one end of the shaft for which is attached a ratchet wheel P and a lever Q, the lever loose upon the shaft and reaching on to a triangular piece of ,iron R forming on its upper surface an inclined plane, which piece is secured to the reciprocating plane in a position to lift the lever on the withdrawal of the plane stock and after the cutting tools are withdrawn from the wood. A pawl S is attached to this lever which strikes into t-he ratchets of the driving wheel and as the lever is lifted by the inclined plane gives motion to the shaft. The rack is attached to the follower N. as the pinion wheel fits into this rack, the motion of the shaft must of necessity give motion to the follower. As the lever is loose upon the shaft it necessarily descends again and allows the pawl to take another hold during the forward motion of the plane. I have also stationary pawls T operating upon the ratchet wheel, to prevent its returning again when the pawl on the lever is loosened by descent of the lever. I have a weighted lever U with a fork at one end coming up under the pawl on the loose lever to throw the feed off when the wood is worked up. This is done by a latch V secured by a cord to the weighted end of the lever and when the feed is on the weighted end 0f the lever is held up by the latch hooked on to a pin inthe frame. A button lV on the follower throws 0E this latch at the properv time and the weighted lever throws 0H the feeding pawl. rIhe splints fall into a chute X and from that into a boX on the floor. y

No. l gives a view of the sets of plane tubes detached from the bed and No. 2 a view of the flanged or winged tubes in like manner detached. No. 3 are flanged single tubes and No. 4 plain single tubes.

When single tubes are used I secure them -by a cap X laid over them and screwed down to the bed and bearing upon the necks of the tubes and by a wedge Y at the side as seen in No. 6, theltubes having a notch in the neck coming up against the cap to prevent their being driven back. I have however used the tubes in sets and only give the view in Nos. 5 and 6 to show how the same principle may be carried out with single tubes as well as in sets. As I do not make any claim for the arrangement of the bed of single tubes any further than the flanged form of the tubes is concerned I have not deemed it important to be very minute in my description or draw- Y tube cutters in the manner and for the purpose herein set iorthJ and I do hereby deelare that I do not intend by the description herein given to confine myself in the second claim to the precise shape or form or manner of arranging and connecting the auxiliary parts of the feeding apparatus or to the peculiar form or arrangement of the tube eutters, but to Vary them as I may find expe- 10 dient While the general construction and operation of the feeding apparatus is substantially the Same with that herein set forth and While it is made to retain those features Which distinguish it, from all other machines Which have heretofore been constructed for la

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