US55833A

US55833A - Improvement in machines for planing moldings

Info

Publication number: US55833A
Authority: US
Publication date: 1866-06-26
Anticipated expiration: 1883-06-26

Description

UNITED STATES PATENT OFFICE.

IMPROVEMENT IN MACHINES FOR PLANING MOLDINGS.

Specification forming part of Letters Patent No. 55,833, dated June 26, 18661.

To all whom it may concern:

Be it known that I, THOMAS DrcKINsoN, of Newark, in the county of Essex and State of New Jersey, have invented a new and useful Improvementin Wood-MoldingMachines; and I do hereby declare that the followingis a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming a part 0f this specification, in which- Figure lis a top or plan View of a wood- Inolding machine with my improvement at-. tached. Fig. 2 is a vertical longitudinal section of the same through the line a: a2, Fig. l. Fig. 3 is a crosssection of the same through vthe line y y, Fig. l. Fig. 4 is a bottom view of a strip of molding attached to the board by means of which it is fed to the cutters.

Similar letters of reference indicate lik parts.

My invention has for its object to furnish a Wood-m0lding machine for working irregular forms on circles or parts of circles; and it consists of the`combination, with an ordinary wood-molding machine, of an adjustable boxtable, constructed and arranged as hereinafter more fully described. ,a ,j r I j,

A is the frame of the machine. B is the drivin g-shaft, to which the power that drives the machine is applied. This shaft works in bearings O and D upon the frame A of the machine, and carries two pulleys, E and F.

Around the pulley E passes a band, G, which passes thence around a pulley, H, upon the shaft I, and communicates motion to said shaft. J is a band passing around a pulley, K, upon the said shaft I and a pulley, L, upon the feedroller shaft M, transmitting motion from the shaft I to the said shaft M. The other feedroller shaft is not represented in the drawings. N is a band which passes around the pulley F on the driving-shaft B and a pulley, O, on the cutter-shaftP, communicating motion from the said driving-shaft to the said cutter-shaft. This shaft P revolves in bearings R and S on the frame of the machine and carries the cutters T.

The adjustable table U slides upon the upright parts of the machine as guides, and is supported and adjusted by the screw V, passing through the frame A of the machine, and the adjustable table U, as shown in Fig. 3.'

In the ordinary molding machine only straight moldings can be worked. The strip of timber out of which the molding is to be worked is placed upon the adjustable table U,

which is adj usted by the screw V, and the strip i fed under the cutters by the feed-rollers.

To the adjustable table U, I attach a box, W, by bolts, as shown in Figs. 2 and 3.

The top or cover X of the box W, which forms the table in my improved machine, is attached to the box by being slid upon the cross-pieces A', attached to the upper edges of the box W, the said cross-pieces A fitting into dovetailed grooves formed in the under side of the cover or table X, as shown in Fig. 2.

The box W and cover or table X being attached to the table U, is adjusted in the same way by means of the screw V, a hole being made through the top of the said cover Xfor the passage of the key or wrench B', by which the said screw is operated, as shown in Figs. l and 3. Y

O and D are guides, the curve of which should be the same as the curve of the molding to be cut or worked. For these guides I usuallytake the strips that have been cut from the concave and convex edges of the molding itself.

E is a board, to which the strip F', from which the molding is to be Worked, is attached for convenience in holding and feeding it to the cutters.

In using the machine with this improvement the position of the table X is adj usted by means of the screw V in the manner before described, and the strip from which the molding is to be worked is fed to the cutters by hand by means of the board E. I

I claim as new and desire to secure by Letters Patent- The arrangement described and represented for dressing two moldings simultaneously by one cutter-head, consisting of the adjustable box-table W X, constructed and operated substantially as described.

THOMAS DIGKIN SON.

i, Witnesses:

M. M. Livnves'roN, JAMES T. GRAHAM.