US295541A - Shingle shaving and rifting machine - Google Patents

Description

I (No-Model")? l .A. GOULD.

SHINGLE SHAVING AND RIPTING' MACHINE; N0. 295,54l. Patented Mar. 25, 1884.

l wr.

N. PETERS. Phclo-L'rlhugnpiwr. Washington D. C

U NI-TED STATES PATENT OFFICE.

APPLETON counn, or BANGOR, MAINE.

SHINGLE SHAVING AND RIFTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 295,541, dated March 25, 1884.

Application filed March 8.1883. (R0 model.)

and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 shows an elevation of my inven tion, one side of the frame and drive-casing removed; Fig. 2, a plan, top of easing removed and the slats forming one of the shingle-rift rests omitted. I Same letters show like parts.

My invention consists of an improved shingle shaving and rifting machine, capable of easy transportation and use on the ground where the shingle-rifts are out, if desired, and

embodying many other advantages, which will appear more fully as I describe my invention by reference to the drawings annexed.

' At a is shown a frame of proper strength and construction, having longitudinal side tracks, b, on the inner side of each side piece.

At 0 is a table or platform shorterthan'the frame, and having tracks or grooves d on each side, corresponding to those at b and running therein or thereby.

At 6 is a shaft journaled on the frame a, and carrying a driving-pulley and balancewheel, f, 011 one end, and a second pulley, g, from which motion is communicated to the rifter, on the other. This wheel f gives a reciprocating motion to the table. I will now describe one mechanism for doing this, (to which, however, I do not limit .myself, as others may be employed to advantage,) which, however, I do not here claim, as it has already been secured to me by Letters Patent No. 276,028, dated April 17, 1883, to which patent reference is hereby made.

To the table a is bolted a casing, h, which, for convenience in description, Iwill consider divided by a vertical longitudinal line into two parts, h and h. The partition h on the lower half of its bottom (a longitudinal division again being made) has a rack, z, anda corresponding rack, j, upon the opposite half of its top t. Upon its under side and into the one or the other of these racks, as the case. may be, meshes a pinion, k, fixed on the shaft 6. This shaft is capable of a longitudinal reciprocating as well as a rotary. motion, obtained as follows: The second division, h of the casing contains a guide'groove, l, in which runs a collar, m, fixed to the shaft e, the result being that as the motion of the shaft through the pinion and rack feeds forward the table, and the curved part of. the guidegroovereaches the collar, the latter follows the curve of the groove, moving said shaft longi- 6 tudinally, so as to force the teeth of the pinion out of the rack in which they have been meshed andinto' the opposite one, thus reversing the directionin which the table moves, while the motion of the driving-wheel remains the same. 7

At 42 n on each endof the table are shaving knives, fixed at a proper height above the rift supporting bed, hereinafter to be described.

At 0 care springs attached to the table at one end, and having journaled in their 'opposite ends, just in advance of the knife-edges, pressure -rollers 19 p,- which, as the table moves, press down upon the shingle-rift firmly, 8o 7 but yet with a yielding pressure, so as to adjust themselves to any twist or variation in thickness of the rift.

The bed A, on which the rift rests, is formed as follows: The frame a is provided at each end with side ledges, q, upon which rest loosely cross-pieces m", the end of the frame and a second cross-piece, s, forming a sort of socket to receive the bed. Upon the cross-pieces r r are placed, close together, bars 1, sufficient in 0 number to fill the space between the side pieces of the frame, the upper surface of the bed A formed thereby being, when in its nor= mal position, just the thickness of the butt of a shingle below the line of cut of the knife at 9 5 its inner end and slightly raised at its out end, forming an inclined plane to provide for the taper required. Below each end of the cross-pieces r r are set-screws a u, passing up through the ledges q', and regulating the height :00

,of the cross-pieces and superimposed bed, as desired. It is evident that by this means the taper of the shingle may be adjusted or the elevation of the bed at either end or corner fixed at will, thus enabling the machine to work perfectly upon a rift which is twisted or crooked, the bed itself being so constructed as to allow of adjustment in any direction. As the outer end of the shingle must be so secured as to resist the pushing action of the knife, I secure barsm to the side pieces of the frame a at the outer ends of the bed-bars 1, by spring-arms we, said bed-bars being cut away, as shown,'to allow of the depression of the bars 0. When the shingle-rift is in position and the knife begins to cut, in advancing over and removing the shaving from the rift, the table e,which is wider than the knife, acts uponand presses down the spring-arms attached to the bars a and the bar itself, so as to regulate its height, while at the same time allowing it to oppose due resistance to the shingle-rift without interfering with the knifebladein removing the shingle. This depressible spring-stop, operated by the reciprocating knife-carrying table, I consider an important part of my invention.

It is evident that my device would work, even if the shingle-bed were solid instead of yielding, and the adjustment limited to the regulation of the taper of the shingle-rift; and by my use of the worc adjustable in the subjoined'claims I include a bed adjustable as to its inclination, as a rigid bed would be; or in any direction within certain limits, as my bed herein described is. A spring-pressure bar might also be substituted for my 5 pressure-rolls without altering the spirit of my invention.

What I claim as my invention is' 1. The combination of the reciprocating knife-bearing table, self-adjusting pressurerolls, and end bar, 1), supported upon springarms w, said bar extending across the end of the shingle-bed beyond said bed, and operating to resist the pushing action of the shingle shaving knife by serving as a rest for the point of the shingle, and depressible by the advancing reciprocating table, substantially as set forth. and described.

2. The combination ofv the reciprocating, knifebearing table, self -adjusting pressurerolls, spring end' bars extending across the shingle-bed beyond its end and serving as a rest for the shingle-point, and adjustable shingle-bed, as set forth.

3. The shingle-bed formed from separate bars unattached to and independent of each other, as described,'and capable of adj ustment in different planes, substantially asset forth, in combination with mechanism whereby said adjustment may be effected.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of March, 1883.

APPLETON GOULD.

Witn esses:

J. B. B. FIsKE, WM. FRANKLIN SEAVEY.

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