US2100003A - Stereotype plate casting machine - Google Patents

Description

F. A. FOSTER Nov; 23, 1937.

Filed April 10, 1955 3 Sheet s-Sheet 1 lNV N fwafig '1' LA. A RNEYS Filed April 10, 1935 3 Shets-Sheet 2 "INVENTOR- Nov. 23, 1937. F. A. FOSTER" 4 I STEREOIYPE PLATE CASTING MAGHI'NE Filed April 10, 1955 r 3 Sheets-Sheet 5 BY v a 7 ATTORNEYS Patented Nov. 23, 193'! UNITED. STATES STEREOTYPE PLATE CASTING MACHINE Frank A. Foster, Maywood,

Goss Printing Press Company,

corporation of Illinois Ili., assignor to The Chicago, 111., a

-Application April 10, 1935, Serial m. 15,508

1 Claim. (Oi. 22-4) The invention relates to new and useful improvements in stereotype plate castingmachines and more particularly to improved means for handling or removing the plates after casting, especially in such machines for casting tubular plates.

Objects and advantages of the invention will be set forth in part hereinafter and in part will be obvious herefrom, or may be learned by practice with the invention, the same being realized and attained by means of the instrumentalities and combinations pointed out in the appended claim.

The invention consists in the novel parts, constructions, arrangements, combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and constituting a part hereof, illustrate one embodiment of the invention, and together with the description, serve to explain the principles of go the invention.

Of the drawings:-

Fig. 1 is an elevation, with parts in section, of a machine embodying the invention;

Fig. 2 is an elevation looking at 5 the right;

Fig. 3 is afsection on line 3-3 of Fig. 1; and

Fig. 4 is a view similar to Fig. 1 with the parts in plate delivering position.

An object of the invention is to provide a Fig. 1 from simple, efficient and rapid plate-casting machine,

with certainof its features especially capacitated for casting and handling so-called tubular plates.

The invention provides, among other advantages,

means for moving-the ca'st plate to a. position for easy and rapid removal from'the core, and provides devices for automatically effecting suchplate movement as the core is moved toward delivery position.- With the tubular type of plate,

this mechanism acts to project the outer end of the plate beyond the top of the core, where it is convenient to be grasped by. the hands, of the workman and drawn'ofif the core by pulling it toward himself. Other features of the invention comprise means for easy manual movement of the core between casting and delivering'positions, and also means for water cooling the core which is not disturbed by the rocking of the core between vertical and-horizontal or inclined positions. Other objects and advantages of the invention will be set -f01'thr in connection with the following detailed description of the present preferred embodiment.

Referring now in detail to the embodiment of the invention illustrated by way of example in lithe accompanying drawings, a supporting frame may be closed for the casting [locking the two halves of the cover together comis provided having side-by-side u'p'wardly' extending frame members 5 and 6, with a horizontally extending frame member I which is bolted tothe tops of the uprights 5 and 6. The cover member I H of the casting mechanism is in two parts and 5 opens and closes. It comprises a stationary, vertically-extending cylindrical member i2, which has a horizontal bottom flange I3, resting upon and bolted to the plate 1. The member I2 is provided preferably with both vertical and horizontal strengthening and cooling flanges l4 and IS. The front half l8 of the cover member II is similarly constructed, and is hinged to a verticaledge of the stationary cover member [2 by hinges i9. Thereby the front half l8 of the cover operation, as in Fig. 1, and then opened, as in Fig. 4, to permit the core to rock downwardly to the plate-delivering position. Theembodied means for forcing and prises a-handle 23 which is pivoted at 24 upon the stationary half l2, and has a plate 25 in which is a cam slot26. A pin 21 is fixed upon and projects from thefront half l8 of the cover, and ms in the cam slot so that on rocking the lever 23 the cam 26 takes the pin 21 and draws the two halves of the cover powerfully together and holds them there. A handle 29 is fixed to the hinged part l8 of the cover for opening and closing it.

The core 33 1s mounted to move between the vertical casting position and a horizontal or inclined plate delivering position. As embodied there is bolted to the bottom of the core 33 a counter-balancing weight 31. This structure has hollow trunnions 3| and 35 projecting from the 35 counterweight, and journaled in bearings in the a frames 5 and 6, and a hand lever is preferably provided fixed to hollow trunnion 3| to rock the core between casting and delivery positions. Fixed to the rear of the core and extending axially therealong is a tongued projection 43, adapted in the casting position to fit into aicorresponding grooved-member ll fixed in the rear-half I2 of the cover. to constitute vertical" walls of .the castin chamber corresponding to the gap in a tubular stereotypeplate. r Y Q Q Means are provided for water cooling the core and fortrapping and maintaining the water supply when the core is rocked to delivery position. In' the embodied form, .a water inlet pipe 45, having if desired a valve 41, discharges, water intothe hollow trunnion 34, and apassagetwithin the counterweight connects into a riser pipell, extending upwardly within the hollow'core verynearly to the top, and thus-discharges the water into the upper endof the hollow core. A discharge opening 49 is provided in the bottom of the core, and this communicates through hollow trunnion by a rotary joint with a stationary pipe 50, which extends upwardly to approximately the level of the top of the core when it is in casting position, and the water can be freely discharged therefrom. A bracket 5| fixed on the frame 6 holds pipe 50. Thus the water is maintained within the core irrespective of its movement between the casting and delivery positions, and without an elaborate system of piping, tanks and the like.

Means are provided for moving the plate along the core to project its upper edge beyond the core, so that. it may be readily grasped and withdrawn by the operator. In accordance with one feature of the invention this movement of the plate is effected automatically during the movement of the core fromcasting to delivery position. As embodied, an annular member 53 encircles the bottom part of the core, and when in the casting position (Fig. 1) it rests upon the shoulder 54 formed at the bottom of the core. The member 53 has an enlarged bottom part 55 and extending upwardly therefrom a diminished-part 55- of lesser circumference, the thickness of the part 56. being such that it exactly fills the space between the core and closed cover, and thus constitutes the bottom of the casting chamber. The part 56 has an outer annular recess 51 at its top to receive the bottom edge of 'the matrix mounted upon the cope. The upper part 56 has at its back a slot 58, within which slot is the lower end of the tongued p'rojection 43 which is fixed to the core. The slot 58 permits movement of the member 53 along the core, and it also coacts with the member 43 to constitute guiding means for member 53. A packing ring. 59 may be employed to make a water tight joint. The automatically operating means for the plate ejecting member 53 comprises pintles 6| and 62 fixed to and projecting from opposite sides of the enlarged bottom part 55 of ejector 53. Pivotally mounted on these pintles are arms 63 and 54, the lower ends of these arms being pivoted on pintles 55 and 56, which are mounted in the frame members 5 and 6. When the mechanism is in casting position, the plate ejector 53 is in the position shown in Fig. 1, and after the cover H is opened, and as the core isrocked downwardly to the delivery position, the plate ejector member 53 is moved along the core -from the position shown in Fig. 1

to that shown in Fig. 4, and thereby the top edge of the plate is moved outwardly beyond the top of the core, and the plate may be readily grasped by the workmans hands and withdrawn from the core.

The invention in its broader aspects is not limited to thespecific mechanisms shown and described but departures may be made therefrom withinthe scope of the accompanying claim without departing from the principles of the invention and without sacrificing-its chief advantages.

What I claim isi A machine for casting tubular stereotype plates including in combination a, frame, an openable and closable cover, a hollow, watercooled, pivotally mounted core movable between casting and delivery positions, said pivotal mounting for the core comprising hollow trunnions journaled in theframe, a water pipe within the core connectedto one of the hollow trunnions acting as a water inlet, and a water outlet at the bottom of the hollow core communicating with the other hollow trunnion, and a stationary exterior pipe, receiving the discharged water from the trun-. nions, said pipe having its discharge end at substantially the level of the top of the core when in casting position.

. FRANK A. FOSTER.

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