US17906A - Shingle-machine - Google Patents

Description

y UNITED STATES PATENT OFFICE.

ELBRIDGE WEBBER, OF GARDINER, MAINE.

SHINGLE1VIACHINE.

Specification of Letters Patent No. 17,906, dated July 28, 1857.

To all wwm t mag/concern:

Beit known that I7 ELBRLDGE VVEBBER, of Gardiner, in the county of Kennebec and State of Maine, have invented a new and useful Improvement in Shingle-Machines; and I do hereby declare that the following is a full, clear, and eXact description of the construction and operation of the same, reference being had to the annexed drawing, forming part of this specification, in which* Figure l is a top View of the machine. Fig. 2 is a vertical section on line Fig. 3' is a vertical section on line y y. F ig, 4 is aplan view of the left hand portion of main frame, with carriage removed. Fig. 5 shows the mode of giving pulley g a motion of translation. Fig. 6 is a top view of vibrating frame by which the taper of the shingle is regulated.

Similar letters denote the same part.

`The character of machine constituting the subject of my invention is that in which the shingles areformed by sawing.

The nature of the invention consists in certain." devices hereinafter to be set forth for automatically regulating the movement ofthe carriage, and for so presenting the bolt to the saw as alternately to cut the points of the shingles from opposite ends thereof: the details of construction and operation being as follows:

In the drawing A is the main frame and Z the carriage, the latter made to traverse lio in direction of arrow by the meshing of pinion F with rack 10. This pinion F has a loose connection with shaft n, and becomes attached thereto, when clutch F has the position shown in Fig. 4. The lever d moves the said pinion so as to mesh with, or separate from the clutch. The said lever Z is attached to a draw rod c', to which is hung a weight fw, whose tendency is to produce i the closing of the clutch F and the consequent movement of pinion F with shaft n. This rod is also connected with a lever C, for operating lever Z by hand.

Upon the side of a branch of lever d, is a ratchet 0, attached to lever d by a pin o', so that pressure against any of the teeth of this ratchet in direction of arrow will separate 'the clutch F and pinion F, and

leave the carriage Z free to be drawn back by the action of weight w', attached to a cord passing over sheave g. The depending stud fw, of the carriage is designed to eect this operation; and the extent of the movement of the carriage in direction of the arrow, will be governed by the number of teeth of ratchet 0, which the said stud can pass over before contact. To govern this amplieffected by attaching the ournal of sheave g to a rack slide g (Fig. 5) which rack meshes with a pinion p on shaft L (Fig. 3) thereby l causing the sheave g to be adjusted to the run of the carriage Z.

There is a bent lever m, at the foot of the frame, notched and weighted as shown in Fig. 2. This notch catches pin m on slide rod o, when by the opening of clutch F this rod is drawn forward, thus permitting weight w to draw the carriage back. The striking of the carriage frame against the upright branch of this lever, at the termination of this backward movement, releases pin m, and permits weight w to act, and operating lever d close clutch F', and permit the carriage to again move forward.

The head block 5 moves across the carriage Z on the frame 2, and is fed up by means of screw S and depending nut n', by means of lever lc, pawl le and ratchet lo, and projecting bench b. This nut is raised from the screw by means of spring 3 and hand lever 3, to allow said head block to slide back upon frame 2.

The frame 2 is attached to the carriage frame by a bolt f, about which it is free to vibrate. This movement is produced in the following manner: A pin 1l depending from a portion of frame 2 enters an oblique slot in slide piece 11, as seen in Fig. 6. This slide piece has a pin embraced between the irregular wheels 12, which from the rotation of said wheels produces a reciprocating motion of the slide piece 11. When this movement of piece 11 takes place the slot and pin connection with frame 2, will cause a vibration of said frame about bolt This causes the bolt to be so presented to the saw that the butts and points of the shingles shall alternate. The rotation of irregular two pinions 7, 7, at the extremities of levers 7, 7 One of these levers is slotted, and the other has a pin entering in the slot, so that both are moved by power applied to lever handle H. The pinions mesh in racks in the floor of the head block and thus move 1 and sheave g, substantially as and for the the dogs 6, as desired and firmly hold t-he bolt when inserted between the teeth of the dogs. plied to pulley X', while motion is communicated to shaft n as shown in Fig. 1.

As the carriage Z is drawn back by Weight f 1 signed my name before two subscribing witf nesses.

fw', levers 7c and 14 press against their respective benches Z9 o, and moving the ratchets 7c and 14', feed the head block forward and give the necessary vibration to the frame 2, and through it to the head f block. The striking of the carriage against the lever m, closes the clutch F as above de- The f 'f ters Patent 1s- The saw X is driven by power api with levers 7 7 and dogs 6 6 as herein set scribed and produces the forward movement of the carriage a suflicient distance for the length, of bolt, the amplitude of which is regulated as before described. The operation is thus continued automatically until the bolt is consumed, the butt and points of successive shingles being cut from opposite extremities of the bolt.

That I claim and desire to secure by Let- 1. The combination of the vibrating frame 2 with the obliquely slotted slide piece 11 j and the cam wheel 12, arranged and operating substantially as, and for the purpose set forth.

2. The relative adjustment of ratchet 0 purpose specified.

3. The arrangement of the pinions 7 7 forth.

In testimony whereof, I have hereunto ELBRIDGE WEBBER.

Witnesses:

E. A. CHADWICK, GEO. W. WAITE.

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