US25945A - Arrangement oe devices in shingle-machines - Google Patents

Description

WM. H. BITZER, OF MUSCATINE, IOWA.

ARRANGEMENT OF DEVICES IN .SHINGLE-MACHINES.

Specification of Letters Patent No. 25,945, dated November 1, 1859.

To all whom 'it may concern.'

Be it known that I, W. H. BITZER, of Muscatine, in the county of Muscatine and State of Iowa, have invented a new and Improved Shingle-Machine; and I do hereby declare that the 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 view of my invention. Fig. 2, is a horizontal section of the same, taken in the line Fig. l. Fig. 3, is a detached view of the bolt carriage and its platform.

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 shingles are cut in taper form from the bolt by a circular saw and at the same time planed at one side.

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

A, represents a rectangular framing on one end of which a saw arbor B, is placed, said arbor having a circular saw O, at one end. At the side of the framing A, and by the side of the saw C, a platform D, is secured, and on this platform a carriage E, is placed and fitted in a suitable guide so that it may move freely back and forth in a right line. The carriage E, is

operated by a connecting rod F, and crank Gr, the latter being on one end of a shaft H, placed in the framing A, said shaft being driven by a belt I', from a drum J, on a driving shaft K. On the shaft H, a working pulley L, and an idle or loose pulley M, is placed, the belt I, being shifted from one to the other as required by means of a belt shipper N. The saw arbor B, is rotated by a belt O, from the drum J.

P, is a horizontal bar which is placed in the lower part of the framing A, and works on a fulcrum pin a. To t-he opposite end of the bar P, a vertical frame Q, is attached, and in this frame a rotary planer R, is fitted, said planer being rotated by a belt b, from the shaft H.

S, is a spring which is secured in the lower part of the framing A, and bears against the bar P, said spring having a tendency to keep the planer R, in close proximity to the saw C, see Fig. 2.

On the upper surface of the carriage E,

two racks c, c, are attached, one near each side. These racks are each provided with alternate long and short teeth d, e, the long teeth of one rack being in line with the short teeth of the opposite one, as shown clearly in Fig. 2. On the carriage E, and between the two racks c, c, a bolt T, is placed, and to each side of the bolt a spring or elastic catch f, is secured. The form of these catches is clearly shown in Fig. 3. These catches act as pawls and engage with the racks c, c. In the lower part of the framing A, a lever U, is placed and secured by its fulcrum pin g. This lever, is connected at one end with a vertical hand lever V, which is near a hand lever W, of the belt shipper N. The opposite end of lever U, bears against the bar P, of the rotary planer frame Q.

The operation is as follows The bolt T, is placed on the carriage E, and the pawls or catches f, f, are laced into two corresponding sized teeth d, or e, e, of the racks c, c. The planer R, is then by actuating lever V, thrown out from the saw C, and the face of the boltis squared or sawed off to be parallel with the plane of rotation of saw C. One of the pawls or catches f is then shifted into a tooth which is out of line with the tooth in which the other pawl or catch is engaged, that is to say, if one pawl is fitted ina short tooth e, the other will be fitted in a longer one d. The bolt T, is fed to the saw C, manually or by the operator, each pawl being moved forward alternately, the distance of a large and small tooth so that the bolt will be fed obliquely to the saw, the swo sides of the bolt being alternately foremost so that the shingles will be sawed from the bolt in taper form, the butts and thin ends being sawed alternately from opposite sides of the bolts. The rotary planer R, smooths ofi:1 the shingles as they are cut from the bolt and the planer is kept to its work by the spring S, the spring allowing the planer to yield or give to compensate for the taper form of the shingles. The reciprocating movement of the carriage E, may be stopped at any time by shifting the belt I, on the loose or idle pulley M, and the planer R, may be thrown free from the bolt when desired by simply actuating the lever U, through the medium of lever V.

I do not claim broadly the employment or use of a circular saw and rotary planer for sawing and planing shingles, for they have been previously used for similar purposes;

but

I do claim as new and desire to secure by Letters Patent-n The arrangement of the frame Q, and planer R, upon the self adjusting swinging bar P, and the combination of the parts thus arranged with the pvoted lever U, and reciprocating carriage F, as and for the purpose herein shown and described.

WM. H. BITZER.

Witnesses H. EHRHART,

S. N. CANDLE.

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