US25433A - Shingle-machine - Google Patents

Description

mi i fra sfrarias ATENT OFFICE.

SHINGLE-MACHINE.

Specification of Letters Patent No. 25,433, dated September 13, `1859.

To all whom 'it may concern:

Be it known that I, HENRY MILLER, of Grafton, in the county of Taylor and State of Virginia, have invented a new and Improved Shingle-Machine; and I do hereby declare thatthe. following is a full, clear, and exact description of the same, reference :being had to the annexed drawings, making a part of this specification, in which- Figure l, is a side sectional view of my invention taken in the line m, oo, Fig. 8. Fig. 2, a ,front sectional view of ditto, taken in the line y, y, Fig. 3. Fig. 3, a plan or top View of ditto.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improvement in that class of shingle machines in which the bolt-in order to have the shingles cut in taper form, is adjusted obliquely tothe cuting plane ofthe saw by means of a tilting The object of the within described invention is to simplify the mechanism employed for such purpose and to graduate with facilit-y the length of the tilting movement or the degree of inclination of the bed so as to give the shingles a greater or less degree of taper as may be desired.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, represents a framing which may be constructed in any proper manner to support the working part-s. B, is a vertical shaft which is placed in the framing and has a circular' saw C, attached to its upper end. On the lower part of shaft B, a driving pulley D, is placed.

On the upper part of the framing A, there is a carriage E. This carriage is formed of two parallel bars a, a, connected by traverse pieces o', one of which, o, serves as a. stationary jaw. The other traverse piece b, has an upright c, at each end, to the upper part of each of which a pendant (Z, is pivoted. The pendants (l, are allowed to swing freely and they are connected at their lower ends by a cross bar e, which has a serrated plate f, attached, the latter serving as a movable or adjustable jaw. The plate or jaw f, works directly underneath the traverse piece o, and said jaw is actuated by a lever g, which is attached to the carriage E, and has one end slotted to receive a pin 7L, attached to a curved cross bar z', which connects the uprights c. The opposite end of the lever g, is also slotted to receive a projection j, on a lever lo, also attached to the carriage E, as shown clearly in Fig. 3. The ends of the bars a, a, are fitted on guides Z, Z, on the top of the framing, and the carirage E, is allowed to slide freely back and forth on said guides.

F, is a tilting bed which is hung on a rod G, attached tothe framing below the carriage E. The rod G,=has one of its ends m, curved upward vertically, said end passing through a cross piece of the framing and having a screw thread cut on it with a `nut a, fitted thereon above the cross piece. The opposite end ofthe lrod G, is attached to a cross rod H, the ends o, o, of which -are curved upward pass through the upper side pieces of the framing and have screw threads cut on them and nuts p, fitted thereon above the side pieces. By this arrangement the bed F, may be 'raisedor `lowered and secured atjthe desired point.

The tilting bed F, is allowed to turn freely on the rod G', and one end of it rests on a wheel I, the teeth Q, of which have at or plane surfaces at their outer parts as shown clearly in Fig. l. The wheel I, is placed on a shaft J, one end of which has its bearing` in a pendant 1*, attached to rod G, the opposite end having its bearing in an adjustable hanger s, attached to the framing. The wheel I, is fitted on the shaft J, by means of a key t, so that it may be adjusted at different points on said shaft and a spring t', bears against the under side of the platform at the end opposite to that against which the wheel I, acts or bears.

K, is a ratchet which is placed permanently on the shaft J, near its outer end and L, is a pawl attached to the framing A, said pawl engaging with the ratchet and actuating it when operated on by the carriage E. A spring stop u, engages with the ratchet K, and prevents any casual 1novement of the same. Underneath the pawl L, a spring fo, bears, said spring having a tendency to keep the pawl L, elevated and free from the ratchet K.

To the front side of the carriage F, a spring Lo, is attached. This spring bears on the upper surface of the pawl L, when the carriage is drawn back.

The operation of the machine is as follows. The bolt shown in red outline is sethe bolt.

cured between the jaws b, f, in the carriage E. A rotary motion is given the saw C by any convenient power and the operator shoves the carriage E, toward the saw the latter cutting a shingle from the under surface of the bolt each time the carriage is shoved forward. As the carriage E, is drawn back the spring u, at the front edge of the carriage strikes the pawl L, and in forcing it down causes the latter to actuate the ratchet K, and turn the shaft J, so that the wheel I, will tilt the platform F, and incline it in a reverse position to that it previously occupied the resistance of spring t, being overcome. This tilting of the platform occurs just previous to the termination of the backward movement of the carriage E, and at the termination of the backward movement of the carriage, the jaw f, is forced back through the medium of the levers k, g, the latter being actuated chiefly by the momentum of the carriage. I/Vhen the jaw f', is moved back the bolt falls on the inclined bed F. The lever K, is then actuated so as to cause the jaw f, to grasp the bolt and the carriage is again shoved forward and a succeeding shingle cut from The Wheel I, at every alternate movement raises the end of the bed F, on account of the Hat surface of the teeth g, stopping directly underneath the bed, and at the intermediate movement the spring zf, raises the opposite end of the bed as the spaces between vthe teeth g, ,stop directly under the platform. By this means the bed F, is inclined in reverse positions. The inclination of the bed F, may be graduated by adjusting the wheel I, nearer to or farther from the rod G, and the thickness of the shingles may be determined by adjusting the bed F, at the proper height by turning the nuts n, p, p.

The tilting bed F, is old and well known and I therefore do not claim it nor a sliding or adjustable jaw f, but having thus described my invention;

Vhat I do claim as new and desire to secure by Letters Patent, is-

l. The manner of tilting the bed F, as shown, to wit., by means of the adjustable wheel I, on shaft J, actuated by the ratchet K, also on said shaft, the pawl L, on the framing A, spring w, attached to the carriage E, and spring t, attached to the framing A, and acting on the bed F, the whole being arranged substantially as and for the purpose set forth.

2. I further claim the arrangement of the bed F, and rods Gr, H, attached to the framing as shown, to admit of the vertical adjustment of the bed for the v purpose of graduating the thickness of the shingles.

HENRY MILLER. lVitnesses A. SHROYER, NA'rI-IN l-l. MEANS.

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