US102068A - Improved machine for making wrottght-iron chairs for railroads - Google Patents

Description

@sind @time dnitrd gewiss -WILLIAH VAN ADEN, 0l" -POUGHKEEPSIE NEW YORK.

Leners Pawn N 102,068, met An-u 19, 1870.

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

To all whom it may concern.

Be it known that I, WILLIAM YANAxDEN, of Poughkeepsie, in the county of Dutchess and State of New York, have invented a Machine for Making VVrought-Metal Railroad-Chairs; 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 o1 this specification, in which- Figure 1 is a front view of the machine, showing a finished chair vbetween the dies and tongue and tonguestock.

Figure 2 is a similar view of the same parts, show ing a flat plate or chair-blank in position upon the dies for being bent into shape.

Figure 3 is atop view of the dies and their operating parts.

Figure 4 is aperspective view of a. chair-plate as produced by the machine.

imilar letters oi; reference indicate corresponding parts in the several figures.

My invention consists in a combination of devices adapted for producing the wrought-iron railroad-chair clamp, known as the Seri-ell rail-chair, as will be hereinafter explained.

To enable others skilled in Athe art to understand my invention, Iv will describe its construction and operation.

In g. 4 of the accompanying drawings I have represented one of the swaged chair-plates. Each chair is composed of two of thcseplates, which are applied to the rails by means of bolts and nuts applied to the vertical flanges s s, above and below the rail-base, so as to draw the plates np closely on opposite sides ot' the rails, and thus alord airm sheath and support for the rails. i

A represents a horizontal transverse bed, which is mounted upon a suitable frame, and adapted toserve .as a support for the dies and their operating. parts.-

a a are two anti-friction rollers or rolling-beds, which are supported by their ends upon the upper edges of the sides of the bed A.

These rollers extend transversely across the bed A, and aord supports for two movable dies, B B', whether these dies be extended, as shown in iig. 2, or brought nearer each other, as shown in fig. l.

The dies B B are constructed with supporting-sur faces e e, upon which the flanges (lettered s s) ot' the vblank are supported, both before p lthe operation of swagiug or bending, and during this operation.

The inner end f of the die B is beveled to form the Iinclined portion s of fig. 4, and the corresponding end g of the die B is at right angles to the plane e, for producing the portion s2, tig. 4. These dies are scored or beveled beneath their inner ends, and these surfaces rest on the respective rollers a a, and cause the dies to rise as they are moved toward each other, and to descend as theyrecede.

By means of extensions b b of the two dies they are guided between the sides A A of the bed A, and, by means of studs b b' and slots c c, the outer ends of the extensions b b are guided and prevented from iising or descending.

For moving the two dies B Bendwise the extension-joints or toggles E E may be employed', operated by means of levers F F and connecting-arms h h.

Ilhe dies B B are so constructed that, when they are in posit-ion for receiving a flat chair-blank, indicatedin black in Iig.V 2, they willallow the blank to be quickly adjusted upon the flat supporting-surfaces e c, and to he held iii proper position thereon for being presented to a forming-tool, j.

The forming-tool 7' is in form the counterpart of the flanges of the `rail-bases for which the chairs are adapted, and this tool is securely fixed to an overhanging stock, C, which is applied to an elevated head, D, of the main frame.

The horizontal surfaces i i of the tool-stock C cor; respond to the flat surfaces e e on the dies B B', so that, at the termination of the last upward movement of the dies in producing a chair-plate, the flanges s s `of such plate will be squeezed between the said surfaces 'i i and e e, as shown in fig. 1. g

l-I-t will b seen, from the above description, that I adapt the dies B B' to serve as beds and supports for the' blank from the commencement to the -termination of the swaging operation.

,These dies simultaneously rise, carrying with them the blank, and bending the'blank into proper shape about the sides ot' thetool or tongue j, as shown iu g. la d I After the operationofforming a chair-plate the dies are caused to recede from each other; at the same time their inner ends descend, and allow a longitudinally-reciprocating hook, P, to discharge 'the chair-plate.

4Before the ehailr-blanks are introduced into the machine they should he properly heated, and, as the blanks are introduced by tongs in the hands of al1 attendant, this person may knock thefinished plates out of the machine with his tongs, and thus dispense with the discharging-hook l).

While I prefer to employ toggles E E for operating the dies B B', I do not conne myself to their use, as other well-known mechanical devices, adapted for giving eudwise movements to said dies, may be adopted; nor do I contine myself to the rolling-beds a a, as these may be dispensed with, and double inclined beds,

-or other equivalent means, employed in their stead.

Having described my invention,

y What I claim as new, and desire to secure by Letters Patent, is 1. The converging and vertically-moving jaws B B' for supporting, retaining, and elevating the chairblank or plate during the bending and shaping-operation, substantially as described.

2. The combination of the converging andvvertically-moving jaws B B' and die j, substantially in the manner and for the purpose described.

3. The combination of the die j, jaws B B', and

Images