US1983913A - Method of and machine for casting type patrices - Google Patents

Description

Dec. 11, 1934. P. MART! 1,983,913

METHOD OF AND MACHINE FOR CASTING TYPE PATRIGES Filed Dec. 14, 1933 2 Sheets-Sheet l P. MARTI METHOD OF AND MACHINE FOR CASTING TYPE PATRICES Filed Dec. 14, 1933 2 Sheets-Sheet 2 Y Patented Dec. 11, 1934 OFFICE PATH.

METHOD OF AND MAGEINE FOR CASTING TYPE PATRICES Paul Marti, Winterthur,

Switzerland, assignor to the firm Schweiz. Lokomotiv- & Maschinent'abrilr, Winterthur, Switzerland Applicatien December 14,1933, Serial No. 702,397 In Switzerland December 24, 1932 3 Claims.

in the production of cast type lines it is well known to use line carriers to which line scale type bars are cast, in order to reduce the consumption of molten metal, accelerate the cooling of the cast line and thereby the casting operation, as well as to avoid the formation of bubbles.

This invention relates to a process for the production of individual setting machine patrices wherein a carrier plate provided with restoring cam portions is automatically carried by a drive member to a casting point and into a casting mold in which the patrice body is cast thereto, whereupon the patrice is carried to a collecting point.

Thereby the carrier plate leaves the necessary space for the patrice member entirely open and, with constant invariable support of the carrier plates at the casting point, great accuracy of the patrices relative to line retention and type height is assured, and the production is cheap and reliable by reason of its simplicity.

In the accompanying drawings a constructional example of a patrice casting machine for carrying out the method according to this invention is shown, in which Fig. 1 shows an elevation of the casting machine,

Fig. 2 shows a corresponding plan View,

Fig. 3 shows a fragmentary larger scale elevation partly in section of the magazine and the mold with the parts of the latter ina position ready for casting, I v

Fig. 4 is a corresponding plan view,

Fig. 5 is a fragmentary similar plan View with certain parts omitted,

Fig. 6 shows a part-view of Fig. 3 with certain parts in different positions,

Fig. 7 illustrates a detail, and

Fig. 8 shows in two elevations and a longitudinal section a patrice carrier with the patrice cast thereto.

The flat or lamella shaped patrice carrier blanks 1 provided with restoring cam. portions are stacked in superimposed position in the vertically arranged magazine channel 2. At the lower end of the magazine, a horizontally reciprocable slide 3 of an appropriate form is arranged to be adapted to remove at each forward throw in the direction of the arrow in Fig. 4 the lowermost plate 1 from the magazine 2. The slide 3 is actuated from a cam disc 5 (Figs. 1 and 2) by means of a lever 4, the cam disc being arranged on a shaft 6. A main slide 8 carrying a spring pressed clamping lever 7 and serving as the upper part of the mold is movable transversely to the slide 3, the slide 8 being controlled from the shaft .6 by means of a cam 9 and a lever 10 (Fig. 1), in such manner, that each plate 1 when pushed out of the magazine channel 2 by the slide 3 is received in a recess 11 of the slide 8 and moved together with this recess into casting position of the slide 8 (Fig. 3). .In the slide 3 a spring loaded counter member 12 is guided to be displaceable within the recess 11 and adapted to be moved in the vertical direction by a roller 13 of a holder 14, in order to force the lamella 1 from the recess 11 of the slide 8 into a recess 15 of the lower part 16 of the mold. To the recess 15 a pusher slide 17 is correlated which is mounted in the lower part 16 of the mold for vertical shifting movement relatively to this part and which is controlled by a lever 18 which is actuated by a cam disc 19 (Fig. .7) arranged on the shaft 6.

2o designates an exchangeable matrix ,provided with the image of a printing type and connected to a matrix slide '21 to be adjustable into all directions, this slide being actuated by means ofn a cam disc 39 arranged on the shaft 6 and a roller carrying arm41 which is rotatably mounted on a pin 40. During the casting operation, the mold is closed on the front side by pressing the matrix 20 against the, lower and upper parts 16 or 8 respectively of the mold. A closure plate 23 provided with the discharge port for the molten metal and a'recess for the discharge nozzle 22 is inserted by hand between the nozzle 22 and the mold and clamped into position, thus providing communication between the nozzle 22 and the mold and forming the rear closure for the latter. The melting pot is designated by 24 which is arranged in a usual manner and provided with a gas burner and 25 refers to the actuating linkage for the extrusion die. The drive of the machine can be effected by means of a hand crank 26 secured to the shaft 6 or else mechanically, by means of a stepped up belt pulley 27. The shaft 6 carries also a fly wheel 28. The frame of the machine is designated by 29.

The operation of the machine is as follows:

In the melting pot 24, the type metal is heated to the temperature required for casting; the magazine channel 2 is filled with plates 1 and the appropriate matrix 20 adjusted into the correct possition on the matrix slide 21. In the inoperative position of the main slide 8, the counter member 12 inserted in the same is in registry with the magazine channel 2, the

clamping lever '7 then being situated above the recess of the lower part 16 of the mold and the matrix retracted from this lower part 16. When the shaft 6 is turned, the lever 4 advances the plate slide 3, in the direction of the respective arrow in Fig. 4, towards the main slide 8 thereby pushing the lowermost plate 1 accommodated in the magazine channel 2 into the position shown in chain dotted lines in Fig. 4, and thus into the recess 11 of this slide, i. e. the upper part of the mold.

Thereupon the main slide 8 moves in the direction of the corresponding arrow in Fig. 4 to the right, into its other end position, to shift the plate 1 previously received by this slide precisely above the recess 15 of the lower part 16 of the mold. Consequently, the roller 13 of the holder 14, having been advanced totogether with the matrix slide 21 by action of the cam disc39, forces the plate 1 into the recess 15 of the lower part 16 of the mold, due to the pressure exerted by said roller on the-counter part 12. In Fig. 5 the main slide is omitted for the sake of clearness.

During this movement of the matrix slide 21, this slide presses the matrix 20 firmly against the mold so that the same is closed at this place, and thus the casting of the patrice can take place. This is effected by pressing the extrusion die downwardly in the melting pot 24 and thereby forcing the molten metal through the nozzle 22 and the closure plate 23, which is provided with a handle piece 23' and clamped between the nozzle 22 and the mold, into the latter.

When the casting of the patrice is completed, the matrix 20 recedes from the cast piece and the main slide 8 is retracted into initial position in which this slide is adapted to receive the next plate 1 then occupying the lowermost position in the channel 2. Thereupon, the plate 1 provided with the patrice 30 is pushed out of the recess 15 of the lower part 16 of the mold, by the slide 17 being moved by the lever 18 against the spring load acting thereon, and secured in a recess 31 (Figs. 3 and 6) of the main slide 8 by the clamping lever 7.

During the displacement of the main slide 8 incidental to the next working period, the plate provided with a patrice and secured on this slide by the clamping lever '7 is moved past a stationary knife 32 (Figs. 4 and 5) by means of which the sullage-piece 30 is separated from the patrice. When the main slide 8 arrives at the respective end position, the clamping lever 7 is rocked against the influence of the spring acting thereon, the finished patrice thus dropping into a collecting recipient 33, while in the meantime a fresh plate is conveyed into the recess 15 of the lower part 16 of the mold, so that no time wasting interruption in the feed of plates to the casing position ensues.

The said rocking of the clamping lever 7 is effected by a rod 34 connected therewith hitting a stop 36 by means of an adjusting ring (Fig. 3). On this stop 36, an arm 37 having an inclined ascending surface is provided which is hit during the displacement of the main slide 8 to the right by a bolt 38 mounted in this slide (Figs. 3 and 4), this bolt thus being pushed downwardly in its mounting against the influence of a compression spring. Consequently, the finished patrice previously held by the clamping lever 7 and carried along with the main slide 8 is pushed off the main slide 8 at a certain position, provided that this patrice had not dropped down earlier after being released by the clamping lever '7.

I do not limit myself to the particular size, shape, number or arrangement of parts as shown and described, all of which may be varied without going beyond the scope of my invention as shown, described and claimed.

What I claim is:

1. Process for producing individual setting machine patrlces comprising moving a carrier plate provided with restoring cams to a casting position and into a mold, casting a patrice on the carrier plate, removing the patrice from the mold, and carrying the patrice to a collection point. p

2. In a patrice casting machine for the production of individual setting machine patrices, a reciprocable carrier member having a recess for receiving patrice carrier plates, means for reciprocating said carrier member, an ejector for forcing carrier plates out of said recess, a mold in position to receive carrier plates by said ejector, said ejector bearing against said plate while in said mold to hold the same, and means for casting a patrice on said plate while in said mold.

3. A casting machine according to claim 2 in which the reciprocable carrier plate is provided with a second recess, means for ejecting a finished patrice from the mold into said second recess, said carrier moving said patrice to a cellection point, and an ejector on said carrier member for removing said patrice from said second recess at the collection point.

PAUL MARTI.

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