US1179544A - Casting-table. - Google Patents

Description

G. R. MEYERCORD.

CASTING TABLE.

' APPLICATION FILED NOV. I2, l9l3.

1,179,544. Patented Apr. 18,1916.

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CASTING TABLE.

T N-FILED NOV-1 llllllllllllllllllfij" Patented Apr. 18, 1916.

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GEORGE E. MEYERCORD, OF CHICAGO, ILLINOIS.

' CASTING-TABLE.

Application filed November 12, 1913.

To all whom may concern."

Be it known that I, GEORGE E. Niamecom), a citizen of the United States, residingat Chicago, county of Cook, State of Illinois, have invented a certain new and useful Improvement in Casting-Tables, and declare. the following to bea full, clear, and exact description of the same, such as will enable others skilled in the art to which it' pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

In manufacturing thick plate glass or slabs or sheets of white glass known as vit-- rolite, etc., I have found it advantageous to cause the cylinder or roll to move at a pehas for one of its objects to provide means.

for varying the relative speeds. of the table and the cylinder or rolls so as to produce at all times a drag best suited to the par ticular thickness of the sheets or slabs which are being manufactured. p

A further object of my invention is to produce a simple and novel mechanism by means of which the ratio between the pe-v ripheral speed of the cylinder or roll and the surface of the casting table may be varied quickly and conveniently and without dismantling the machineor portions thereof.

The various features of novelty whereby my invention is characterized will hereinafter. be pointed out with particularity in the claims; but, for a full understanding of my invention and of its objects and advantages, reference may be had to the following detailed description taken in connection with-the accompanying drawings, wherein: Figure is a view partly in end elevation and partly in section of a machine arranged in accordance with-my invention; Fig. 2 is a top planyiew. of the left hand'portion of the machine; and Fig. 3 is a side View of the upper portion of the machine looking toward the right from the left hand sideof I Fig. 1.

Referring to the drawings, 1 represents a casting table and 2 the cooperating cylinder Specification of Letters Patent.

.to suit the service conditions.

Patented Apr. 31.8, 1916.

Serial No. 900,440.

or roll; the cylinder or roll being mounted at its ends in suitable vertically adjustable bearings, 3, arranged in stationary pedestals, 4, located at opposite sides of the table; the table being carried on wheels, 5, run-. ning on suitable tracks or rails, 6, extending at right angles to the axis of the cylinder or roll. The parts heretofore described may take any usual or preferred forms, the drawings being simply intended to illustrate conventionally a common construction.

It is common practice to, rotate the cylinder or roll by means of a rack and pinion, the rack being carried by the table and the pinion by the cylinder or roll. In accordance with my invention 1 provide an adjustable or variable rack and pinion device so that the relative speed of the periphery of the cylinder or roll to the surface of the table is not a fixed factor but may be varied To this end I have associated with the cylinder of roll a plurality of pinions differing in diameter and have mounted the pinions and the rack in such a manner that any one of the pinions may be brought into operative relation to the rack regardless of the vertical adjustment of the cylinder'or roll. In the particular arrangement shown, one of the pedestals for supporting the cylinder or roll is located at a considerable distance from the end of the roll, leaving sufficient space between the pedestal and the adjacent end of the roll to accommodate the shifting pin- 1ons. three of these pinions, 7, 8 and 9 rigidly connected together and mounted on the reduced In thearrangement shown there are v end or shaft, 10, of the cylinder or roll so as the member 10 and are rigidly connected to the pinions.

13 is a screw rod extending axially into the member 10 through the outer end thereof and having its inner end connected to the key so as to be revoluble with respect to the key and be held against movement'in the direction of its length. relative to the la'ey @n theouter end of the rod is a suitable hand wheel, 14. By turning the hand wheel in one direetien or the other, the pinions are moved along member 10. the same v side of the table as that on which the pinions are located is secured a channel iron, 15,

- extending throughout the length of the table. Projecting outwardly from the channel iron 'is-a plurality of brackets, 16*. Upon the outer end of each bracket ismounted an arm, 17, arranged to swing about a horizontal axis. Above the arms is arranged an I-beam, 18, provided with brackets, 19, each block 22. 'The latter end of the rod is screw threaded as indicated at 24 and on the screw threaded portion projecting beyond the block is a nut, 25, in the 'formof a hand wheel. By turning the nut 25 the arms 17 are caused to swing about their pivotal axes,

thusraising or lowering the'I-beam and the" rack. I

In adjusting the machine, the rack is first lowered out of the way of the pinions by turning the hand wheel 25, the cylinder or roll is raised'or lowered so as to bring it at the right distance from the surface of the Y table, the pinions are shifted lengthwise of the roll so as to bring the proper pinion above the rack, and the rack is then raised so as to bring it into mesh with'the proper pinion; the entire operation of adjusting the.

machine and bringing the proper pinion in mesh with the rack requiring only a very short, time and very little efl 'ort and there being no dismantling of the machine or removal and-replacement of any of its parts.

Thus,'when it is desired to cast sheets or slabs of a thickness differing from that for which. the-machine is set, the adjustments are made quickly and conveniently, the

speed of the periphery of the cylinder or roll being varied relative to the speed of the surface of the. table so'as to give the drag best adapted for the new thickness of mate-' rial to be cast, the drag being increased with the thickness and beingidecreased for thinner sheets or slabs.

In' operation, after the roll and the variable speed gearing have been adjusted for the particular thiclmess of sheet slab to be table in advance of the roll and the table is then caused to travel longitudinally beneath the roll. The roll flattens out the material made', the molten material is poured on the to the desired thickness and at the same time tends to hold back slightly the mass traveling beneath it, thus producing a drag in the upper portions of the mass and making the surface smooth and level.

I claim:

1. In combination, a casting table, a cyl-' inder or roll cooperatingwith the table, a

plurality of pinions-.differing in size connected to the cylinder or roll, a rack carried by the table, and means for adjusting the pinions and the rack so as to bring the rack in operative relation toany one ofthe pinlens.-

2. "In combination, a casting table, a cyl,

inder or roll above the table, a plurality of pinions of different size connected with the cylinder or rollso as to be revoluble therewith and have movements independent thereof in the direction of the, length of the cylinder ,or roll, and a rack adjustably mounted on the table beneath the pmionsso as to be movable with the table and be ad justable from and toward the pinions.

3. In combination, a casting table, a cylinder or roll above the table, a supporting shaft for the cylinder or roll, a plurality of pinions of different size keyed to said shaft so as to be rotatable therewith and movable on the shaft in the direction of its length, means including a hand wheel at one end of the shaft for shifting. said pinions, and a.

vertically-adjustable rack mounted on the table for cooperation withthe pinions. Y I

4. In combination, a casting table, a cyl- .inder or roll above the table, a supporting shaft for the cylinder or roll, a plurality of pinions of different size keyed to said shaft so as to be rotatable therewith and movable 1 on the shaft in the direction of its length,

means including a hand wheel at one end of theshaft for shifting said pinions, a vertically-adjustable rack on the table beneath the pinions, and m ans including a hand wheel for adjustin aid rack.

In testimony w ereof, I sign this specifij cation in the pre snce of two witnesses.

' GEORGE R. MEYERGORD.

WM. F. FRfEunENREIcfi, RUTH E. Znmnvm.

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