US12004A - Nathaniel spence - Google Patents

Description

UNITED sTATEs PATENT oEEroE.

NATHANIEL SPENCE, OF NE\V YORK, N. Y.

MOLD FOR. PRESSING BONNET-FRAMES.

Specification of Letters Patent No. 12,004, dated November 28, 1854; Antedated November 10, 1854.

T0 all whom t may concern:

Be it known that I, NATHANIEL SPENGE, of the city, county, and State of New York, have invented certain new and useful Improvenients in Machinery for Forming or Pressing up Bonnet-Frames; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which- Figure l, represents a perspective view, Fig. 2, a vertical central section, and Fig. 3, an instrument for raising the upper from the lower die.

Similar letters in the figures denote like parts.

In the patent of William Chaplin, of the l0 Sept. 1840, is described a counter die which he says may be heated,-the block or upper die being of wood; and he moreover states that the counter die retains the heat long enough to finish several frames before reheating-the length of time required to `finish a frame varying with the degree of heat in said die or countersink.

The nature of my invention consists in arranging with the metallic die and counterdie, the heaters to beV described, by which means I keep up a more equable degree of heat, and expedite the forming of the frames, and whereby the dies can be removed without disturbing the heaters, or the heaters removed or changed without opening the dies. And in this connection I would state that, sad, and hatters or tailors irons, have been heated by a metallic heater block, and that heated dies have been used. I do not therefore claim these things irrespective of t-he devices which I have represented.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A, represents a stand upon which is arranged -a plate or table B, which by means of its hub C, and a set screw or other suitable fastening may be made adjustable on said stand.

D, is a conical shaped heating iron, with a hole in its center so as to fit over the hub of the stand, from which it may be removed, and replaced by another heater of a similar form, when found necessary.

E, is a metallic block-the underside of which is so shaped as to rest over the heater D, and upon the skirts of the table, so as to completely cover up the said heater, and prevent the heat from escaping except by radiation through the met-al in contact with it. The upper part of the block E, has formed upon it a die of the shape of the bo-nnet, or bonnet front. The skirt of this die has a flange a, turned upward upon it to catch and hold, a slight projection on the counter die, and bring it into its proper position. A mark upon the under side of the block, and one upon the table should be made (as a pin and hole or slot) for the purpose of matching or fitting said block to the stand.

F, is the upper or counter die, also of metal, and made the counterpart of the die on the block E. It has a fiange b on its outer part, for catching and holding the heating blocks c, c, c, c, which are in sections, for being more readily removed and replaced. On the underside of the counter die, should be also a pin or mark to match with a similar pin or mark on the lower die, to serve the purpose of what are known as pitch pins. There is a fixed bail d, on the upper part of the counter die, which has an oblong slot e in its crown; and at right angles to this fixed bail, is a movable bail f hinged to the lugs g g. A set screw passing through the slot e into the bail f, allows the latter to be adjusted so as to balance and keep in a horizontal position the upper die, as it is raised and lowered to place and replace the stock out of which the bonnet frames are to be made.

G, Fig. 3, is a small tool, the teeth k, h, h, of which are for entering between the two dies, into spaces left purposely for them, for prying, or slightly raising apart or upward the upper die, to detach it from the bonnet frame which is in the position represented by the red lines Fig. 2, between the dies.

A press of any'convenient form may be used for pressinv the upper against the lower die, having force enough to insure that the material between them is properly shaped. -The heat of the two dies almostinstantly gives the bonnet frame, (the material out of which it is made having been previously prepared with starch or other stiffening mattter) the desired form, and dries it sufficiently so that it can be removed and 4retain that form, and thus makes,`as it were, but one operation of stamping up, and drying said frame. When the dies themselves were heated it not only spoiled their to keep the machine constantly in operation. f

smooth surface, but required duplicates to keep the machine going, and they the most expensive part of the machine. By using separate heating irons, the polished surfaces of the dies are not injured thereby, and duplicates of the heaters, Which may be of the roughest material, is all that is required Having thus fully described the nature of my invention what I claim therein as nevv and desire to secure by Letters Patent, is

The arrangement of the metallic die, and

NATHANIEL SPENGE. Witnesses C. N. BovEn, F. B. MAYHEIN, ISAAC O. BARKER.

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