US92591A - Improvement in shingle-machine - Google Patents

Description

@wird game JOHN B. DOUGH-ERTY, OF ROCHESTER, NEW YORK.

Letters Patent No. 92,591, dated July 13,1869; antedated June 30, 1869.

IMPROVEMENT IN SHING-LE-MACHINE.

The Schedule referred to in these Letters Patent and making part of the same.

To whom it may con-cern Be it knownthat I, JOHN B. DOUGHERTY, of Rochester, in the county of Monroe, and State of New York, have invented certain new and useful Improvements in Shingle-Machines, and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in whichj Figure 1 is a side elevation of an ordinary shinglesawing machine, with my invention attached.

' -Fignre 2 is a top View of thesame. f

A Figure 3 is an end elevation of the frame, the hinged table and the sliding bolt-frame, or chuck G, being Vshown infsection through the friction-rohers R and z', as indicated by the red lines n, Iig. 2. j

Figure 4 is an enlarged sectional View of the parts taken iu the plane 0f the red line x, fig. 2.

-Litre letters indicate corresponding parts in the several gures.

This invention relates to that class of shingle-machines iu which the bolt-carriage is operated by hand, presenting the block to a horizontal circular saw, and

It consists in the construction of the hinged frame, having carriage-ways, and carriage, and head-block arranged and operating thereon. j

To enable others to make and use my invention, I will describe its construction and operation.,

I make the frame A as heretofore used.

To the cap-rails B, I hinge the frame C, as seen at N, in g. l.

I provide this frame with a iiange, F, to reach below the saw, and act as a guard, and also as a conductor of the sawdust. 1 l

The offset D is designed especially as a. guide for the sawdust, as itis thrown fromthe block-or bolt.

lIn these respects this' frame or guard is similar to that shown in my former application, patented October 9, 1866.

This frame is made whole, and hinged so as to swing vertically from the saw, when desired.

There are clamping-jaws a cast on each side of the main frame A, and the head of the clamping-screw b, which is attened, so as to haveashoulder only on two opposite sides, passes through between the jaws a, when the screws on each side ofthe machine is turned so as to clutch under the jaws, which hold this frame perfectly solid.

'The ribs r of this frame are raised suliiciently to receive the friction-rollers R upon the top, andthe rollers 11,gs. 3 and 4, traverse 's the -side of the track. or rib T, on the right-hand side of the machine.

The lateral strain or friction, caused bythe draught from the saw, is fully neutralized by the rolleis i.

The jaws J, shown in gs. 3 and 4, secures the car.- riage G to the swinging frame C.

' The counterweight wis intended to hold the frame G up out of the'way, when the saw S is being removed or replaced, and the cord maybe unhooked when ,the

frame is -adj usted in its working position.

The bolt-rest and .-dogging-apparatus, common in these machines, are not shown.v

What I claim as my invention, and desire to secure by Letters` Patent, is-- l. The swinging frame-Smith carriage-ways 1*, and having the head-blocker carriage G sliding thereon,

all constructed to operate in the manner and for the purpose substantially as set forth.

Witnesses WM. S, LOUGHBOROUGH, J AMES DoRsnY.

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