US31678A

US31678A - Alfred t

Info

Publication number: US31678A
Authority: US
Publication date: 1861-03-12
Anticipated expiration: 1878-03-12

Description

ALFRED Ta SERRELL,

or Nev/"YORK, N. Y.

FEEDING-ROLLER FOR ROTARY PLANING.

Specification of Letters Patent No. 31,678, dated March l2, 1861.

To all whom it may concern:

Beit known that I, ALFRED T. SERRELL, of the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement in lWIachineryfor Planing Curved Moldings, Beads, &c.; and I do hereby declare that the following is a full, clear, and exact description of my said invention, reference being had to the annexed drawing, making part of this specification, wherein Figure l is a side elevation of said machine, and E ig. 2 is a plan with the rotary cutter removed to show the guiding rollers.

Similar' marks of reference denote the same parts.

The nature of my said invention consists in the combination of a movable feeding roller with two adjustable stationary rollers, so located and acting` in connection with a rotary cutter that the said cutter will produce a molding or bead upon an irregular or curved strip of wood; the movable feeding roller not only causing the wood to progress regularly, but also acting to keep the same down to the bed in consequence of oblique serrations formed in the edge thereof.

In the drawing c, is a suitable'bed or table Asupported on a frame or legs b. c, is a rotary cutter fitted with planes of the shape of the molding to be cut and el, is the driving `pulley on the shaft of the rotary cutter. Thesaid rotary .cutter may be constructed in any desired manner, and supported and adjusted as usual.

e, c, are rollers fitted to a frame f, that is attached by bolts l, l, to the bed a, and the rollers c, e', can be adjusted in the frame f, by slots taking the bolts or gudgeons of said rollers. l

g is a feed roller on the upper end of a shaft c', that is supported by journal boxes in a sliding frame i1., supported in the slides 7c. The bed a, is slotted as at 2, to pass the shaft z', and the weight Z, on the cord 3, over the pulley 4, tends to keep the roller g toward the rollers c, e', and by a lever m, and the cord 5, over a pulley 6, the workman can, by his foot, draw the frame 7L, and roller g away from the rollers e, e', for the entering of the strip of wood to be acted on.

The wood to be planed into a curved molding or bead is rst sawed out into the shape desired, and is then entered between l theV rollers c, c', and g, as aforesaid. It will E no w be seen that the axis of the rollers c, c, l being ina plane at right angles to the axis l of the rotary cutter, that the curved strip of wood pressed to said rollers c, c, by the roller g will stand in the correct position for the action of the rotary cutter; because ,i the axis of the rotary cutter is parallel to and perpendicularly above the radius of the curve whether said curve be regular or varying and that the cutter itself will act parallel to a tangent on the curve or are.

being planed. The material at a2 will illustrate the position of the wood being planed.

The action of the vrotary cutters is to raise the wood from the bed and if the curved wood is not held down rmly against the operation of the rotary cutter particujured on account of the grain of wood generally running more or less crosswise. I therefore construct my feed roller with oblique serrations as represented in Fig. l, so that under the action of the rotary cutter it shall tend to press the wood down to the bed, or in other words that the oblique serrations in causing the wood to progress shall tend to clamp or screw the wood down to the bed bythe said oblique or screw formed serrations taking the edge of the strip of wood. The roller g may be revolved by any suitable mechanism. I have however shoWn a pulley n, adapted to a belt, and my said roller g is represented in larger size in plan and elevation in F ig. 2. l

What I claim and desire to secure by Letters Patent is- '1. The feed roller g, formed with serrations upon its edge which are oblique to the surface of the bed upon which the wood moves, so that the action of the rotary cutter upon said wood shall cause the same to remain firmly upon said bed as set forth.

2. The rollers c, e, in combination with the aforesaid serrated roller g and` rotary cutter c, in the manner speciiied for the purpose of planing curved lnoldings as set forth.

In witness whereof I have hereunto set my signature this 23rd day of October, i860.

ALFRED T. SERRE'LL.

Witnesses:

LEMUEL W. SERRELL, THos. GEO. HAROLD.

larly at the ends it is quickly torn and in-