US415631A

US415631A - Planing-machine

Info

Publication number: US415631A
Authority: US
Publication date: 1889-11-19
Anticipated expiration: 1906-11-19

Description

(No Model.) I

F. H. GARVERIGH: PLANING MACHINE.

N0. 415,631. 7 Patented NOV. 19 1889.

n. PETERS, Phowmhugnpher. wzs'mn nm u. c.

UNITED STATES PATENT OFFICE.

FRANK H. GARVERICI-l, OF DAUPI-IIN, PENNSYLVANIA.

PLANlNG-MACHINE.

. X Y SPECIFICATION forming part of Letters Patent No. 415,631, dated November 19, 1889. Application filed March 12, 1889. Serial No. 302,974. (No model.)

To a whom it may concern.-

Be it known that I, FRANK H. GARVERIOH, a citizen of the United States, residing at Dauphin, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Planing-Machines, of which the following is a fu'll and clear description, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a sectional View taken longitudinally through the machine. Fig. 2 is a plan view.

My invention relates to certain new and useful improvements in machines for planing shingles; and it consists in the construction and combination of devices which I shall hereinafter fully describe and claim.

To enable others skilled in the art to which my invention appertains to make and use the same, I will now describe its construction and indicate the manner in which the same is carried out.

I11 the said drawings,A represents any wellknown form of frame suitable for a planingmachine, and having journal-boxes in which the journals of the feed-rolls a a and the lower rotary cutter-head B, are mounted, the said rolls and cutter-head being operated by any well-known means, as by the belts Z) and c from the counter-shafts O C, which operate the lower cutter-head, and the gears D and E on the ends of the feed-rolls, whereby the latter are rotated to feed the unplaned shingles forward. The gears D and E are engaged by an intermediate pinion F on the end of a stub=shaft G, which also carries a band-pulley driven by a belt (Z from a pulley on the counter-shaft O, as shown in Fig. 2.

A supplemental frameH, rising from the main frame, carries grooved journal-boxes I and I, iilwvliicli the journals of the upper rolls m m are mounted, and said boxes are designed to have a vertical movement on the guides e to permit the passage of the beveled shingle. The boxes I and I are also provided with vertical rods f, which extend upwardlytherefrom and pass through the top or cap, plate of the frame H, and said rods are surrounded by coiled springs g, the ends of which rest under the cap-plate and on top of the boxes, as shown in Fig. 1, whereby the upper rolls are held tightly against the shingle, but are permitted to yield to the gradual increasing thickness of the beveled shingle. Other boxes J in front of boxes I and I are mounted in the frame H similar to the boxes I 1, they being constructed similar to the latter boxes, and receive the journals of the upper rotary cutter-head K, which carries a pulley h, driven by a belt from the countershaft 0, as shown in Fig. 2.

The j ournal-boxes J not only carry the journals of the upper cutter-head K, but also the journals of the forward roll L, and this rollL and the upper cutter-head are so located with relation to each other that the cutters 2' rotate in a path slightly higher than the plane described by the forward roll, whereby, when the shingle is moved forward by the feedrolls, its point passes beneath the rotary cutter-head K and passes forward under the forward roll. As the shingle continues in its forward movement, its increasing thickness causes the roll and its journal-boxes to be moved vertically to permit its passage and to permit the upper cutter-head to plane the upper surface of the shingle, and as the rotary cntter-head K has its bearing in the same boxes as the forward roll the said outter-head is likewise vertically moved, so that it must at all times retain its position relative to the roll, whereby the entire top surface of the shingle, except the point, is planed. As the shingle passes from beneath the upper cutter-head and forward roll, the springs which bear against the boxes cause the latter and the cutter-head and roll to return to their normal positions.

While the upper cutter-head planes the top surface of the shingle, it will be understood that the lower cutter-head planes the lower surface, so that when the shingle emerges from the machine it is in a finished condition. It is also manifest that the journals of the roll m nearest the cutter-head may be journaled in the. boxes which carry the upper cutter-head and forward roll without departing from the spirit of my invention; but in this case the cutter-head will rotate in a plane slightly below the roll m and slightly above the forward roll L, so as to engage and plane the entire surface of the shingle after the point of said shingle passes from beneath the roll m.

Having thus described my invention, what I 5 claim as new, and desire to secure by Letters Patent, is-

An improved planing-machine consisting of a main frame, the feed-rolls Ct a, and lower cutter-head journaled therein, a presser-roll Y IO mounted in adjustable journal-boxes near one end of the machine, a similar roll near the lower cutter-head and mounted in adj ust-