US70847A

US70847A - Robert howdon

Info

Publication number: US70847A
Authority: US
Publication date: 1867-11-12
Anticipated expiration: 1884-11-12

Description

@uitrit faire @strat Affiner..

ROBERT HOWDON, OF CINCINNATI, OHIO, ASSIGN OR TO CRANE, BRED 85 CO., OF SAME PLACE.

Letters Patent No. 7 0,847, dated November 12, 1867.

IMPROVEDMOULDING-FAGING MACHINE.

l TO WHOM IT MAY CONCERN: Be it knownI that L ROBERT HOWDON, of Cincinnati, Hamilton county, Ohio, have invented a new and' useful Improvement in Moulding-Facing Machines; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification. This invention consists in au arrangement within a suitable' frame of amoulding-facing die, inscveral adjustable parts or jaws, through which a suitably prepared strip, moulding, or mandrel', loosely enclosed in sheet metal,bcing drawn, becomes closely encased in said metal, while the metallic casing itself becomes sharply impressed/with the form of said dies,

Figure 1 is a perspective view ofone form of my facing apparatus.

Figure 2 represents a strip of encased moulding.

Figure 3 is a perspective view of another form of my facing apparatus.

Figure 4 is a rear elevation of the dies, with a piece of work in position.l

A is a rectangular metallic frame, having inwardly-projecting cleats B, which confine the dies C CC. Tapped within said frame are set-screws D, one or more in number, whos-e dove-tailedheads E occupy corresponding gains in the backs of as many dies C C', and serve to retract said dies to easily admit one end of the strip moulding or mandrel Z, having its envelope of sheet metal loosely folded around it, and immediately after each insertion of the work, to set. said dies toward v the same, so as in successive passes to closely invest the `strip with the metallic casing, and lto bring thc latter to a'dcnite form and sharpness of contour, (see igs. 2

and 4.) In order tc secure the edges of the metallic casing, I provide grooves F in the rear side of the strip, and corresponding projections Gr from the working edge of the rear die C, which projections, entering the said grooves, tightly crease or upset the vedges of the metal'into said grooves, and secure the wood lin place. In

cases where the upsetting crease is so acute as to require a greater deilection than is obtainable by a. direct l' advance of the roar die, as at H, iig. 4, I provide au auxiliary die, I, secured and adapted to slide within n. dove-tailed groove, J, on the delivery side of the said rear die, and held to any desired degree of protrusion by means of a screw, K, which, traversing a slot, z', lin the auxiliary die, is tapped Within the said rear die- For some forms of moulding, a single adjustable die will serve. v y

The use of adjustable dies in this connection supersedes the necessity of such extreme uniformity in size of the successive strips or mouldings, because the dies can be set out'or in to fit each strip. It also supersedes the necessity of pointing one end of each strip to enable it to be inserted in the die. The strips are drawn through my die by means of a customary grapnel. v 1

I claim herein as new, and ofmy inventionv 1. The construction of the dies of a mouldingfacing machine, in two or more` adjustable parts, for the purpose set forth; I j j j 2. The arrangement of frame A, movable dies C C C, and set-screws D, or their equivalents, for the purpose set forth. A l

3. The auiriliar'yvv die I z', in the described combination with the rear ldie C of a two or more part monldingf Vfacing apparatus, for the purpose explained'.

In testimony'of which invention-*I hereunto set my hand.

l ROBERT HOWDON, Witnesses:

v GEO. H. KNIGHT,

JAMES H, LA YMAN.