US945609A - Line-casting machine. - Google Patents

Description

J. R. ROGERS. LINE CASTING MACHINE. APPLIOATION FILED rms. zo, 1909.

Patented Jan. 4, 1910.

2 SHEETS-SHEET 1.

J. R. ROGERS.

LINE GASTING MACHINE.

APPLIUATION FILED PEB. zo, 1909.

Patented Jan. 4, 1910.

2 SHEETS-SHEET 2.

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Spcieation of Letters Patent. I' -f .appneatiea'aiedrebraery zh .ieea serial No. 479,106.

NEW YORK, AssIGNon 'ro MEnGENTHALnn' RPORATIN on NEW YORK.

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Patented Jan. 4, 1910.V

all whom 'it concern."A Be it known that I, JOHN R. Roanne, of thegboroughof Brooklyn,

new, and fusefuly Improvement in LineCast nig-, Machines, &c.', fof which the following is aspecitication. l ."My invention has reference to line castmachines in which a type metal slug or diicingtslugs of changed the ejector s les'snes's, will reduce t p rir'itingfbarv is cast in a slotted mold a ainst thec'omposed line of, matrices 'presente xternp'o'rarily to thel :Eront'ofy themold and servin g'fto form the type characters in relief on tg' edge of the slug. i

in" this class of machines, represented for4 ex,:mple in United4 States- Lette'rs .Patent 4536,532, to Mergenthaler, the slugfis de h'veied from themold by a reciprocating ejector. blade` connected to anoperating slide 20V which advances from the rear, driving 'the before it, .oi 1t receivinff galley 'at'the frbnt'.' In o"r er.` t` a apt'the machine for prodiierent lengths the mold slot is made variable in length by the use of interchangeable filling pieces o r liners, or by the 'use of a liner arranged to' slide endwse.When the len th otthemold slot is V iould be detached and feplaced by another of a'wijdth correspondin .to the length ofthel s lot.

n 'practice it occasionally happens that theattendant, throii h ignorance or care- 'e length ,of the-mold the machine an ejector of- 'Insuch case the ejector, advancing in due time`. against the mold hner, is liable to cause fracture or injury of the liner or mold body, or the ejector willv itself be. fractured or broken'.

The aim. of l.myv invention.- is to prevent accidents of. this character by preventingthe .operation of ejector blade is of the machine unless, the suchwidth that it will passfthrough the mold.; .Y .My invention is suse tible' of embodiment in various; alternativeor equivalent forms, ,as will a pear to theskilledmechanie is s eeiicatiom In the drawings have-shown the inven tion in two formsadapted'for application to the well .knownMei-genthaler machine, commercially known` 4under .Liaetyre. and. represented .to its este.

slot but leave .in excessive width.

'county o f Kings@ ,and `lState' of New York, .have invented [a f themold and into the trademark I "tial features in United States Patent 436,532.

In the machine with my improvements incorporated therein. Fig. 2 is a perspective view of the saine. Figs. 3 and 4. are perspective views showing an alternative form.l

Referring to Fig. l, A represents the main frame of the machine; B the vertical mold drawings: Figure l is a side eleva tion showing the ejecting mechanism and various attendant-parts of a Mergenthalei" wheel or disk having the usual slotted mold,

C, secured firmly therein; D the galley into which the slugs are delivered from the mold; E the reciprocating ejector blade which passes through the mold from the rear to deliver slugs therefrom. F is the actuating slide to which the rear end of the ejector blade is detacliably connected by means of spring fingers, as practiced in the comgiercial machines and shown in United tates Letters Patent 560,537, although any Y other suitable form of connection may be used. G is a link through which the ejector slide-F is actuated from an upright lever, I-I, which receives motion in turn from a cam wheel, I, on the main drivinor shaft, J. K is a laterally swinging stop `dog lcarried by the cam wheel I, and acting, when the machine has completed its cycle of operations,

on a lever, L, which, through an intermediate lever M, actuates the clutch controlling lever N, which throws the main drivin clutch out o -action to arrest the motion o the casting mechanism. The stop dogv K is acted u on by a spiral spring, 7c, `and stands noinnal y in a position to encounter the lever L, and stop .the machine. The machine cannot be started so long as the dog K remains in the outer position, over the lever L. O is a so-called starting-lever77 for moving the stop dog K laterally away from the lever L when the machine is to'be started or when its rotation Vis tobe continued so as to cast an additional slug or slugs from the one lineof'matrices. This starting lever O is mounted on the upper end of a vertical rock shaft, o, acted upon at the lower end by a stud' on a slidingbar, P, which extends to the front of the machine so that it may be operatedfby hand or by an automatic startindevice. v 'o far as described the foregoing parts ,are

all of the ordinary construction, ai'idtheir Vcastlng position `to y ejector lever,

' width.

operation is as follows: After the casting action, and after the mold wheel has been turned tol'carry the mold from the horizontal the vertical ejecting posltion shown in Figs. l and- 2, the ejector slideis advanced through the action of the cam and intermediate connections to deliver the slug, after which the ejector is retracted. In; carrying my invention into effect I form the ejector actuating lever H in such man`V ner that the machine sto s before the ejector is wholly withdrawn rom the t ltnold, as shown in Fig. l. In other words' the machine is stopped with the forward end of the ejector in the mold. To the ejector actuating lever H I connect a bar, Q, 'which is carried forward to the front of the machine in convenient reachof the attendant. On this bar I provide a sleeve or projection, g, and on the main frame I pivot an angular lever, R, of the form shown, urged upward by a spring, S. When the machine stops, and when the parts are in their normal positions this lever is inactive. When, however, the ejector is moved fully backward out of the mold, the rod Q is carriedrea'rward by the and the'projection Q is caused to depress the lever R until its lower end stands alongside of the stop dog K, the projection holding the lever down, as shown in Fig. 2, thus locking the dog in such position as to prevent the starting of themachine. lVhen the length of the mold slot is to be reduced it is necessary to first remove the ejector E therefrom; and this is accomplished by the attendant standing in front of thc machine and pushing the rod Q backward. He then changes the length of the mold slot las usual, at the same time replacing the ejector by another of corresponding If, however, he fails to change the ejector and leaves in place one wider than the length of the slot, it will be impossible for the ejector to advance through the mold, and the ejector, being thus held back by the mold, serves in` turn, through the intermediate parts, to hold back the rod the lever R and the dog K, so that the starting of the machine.is impossible. In this manner the attendant is compelled to insert an ejector of suitable width before the rod Q can be moved forward' in order to permit the starting of the machine.

It will be observed that it is impossible .to

-`start the machine or todrive the ejector mechanically toward the mold until an ejector of suitable width has been inserted, and that the mold is utilized as a means of controlling or throwing into action the parts which prevent the operation of the ejector. In other words, the length of the mold slot; determines, through the intermediate parts,` the width of the ejector which must be employed before the machine can be set in action.

Q thus locking' it to the right.

In Figs. 3 and 4 I represent an alternative form of device operating on the same principle as the one shown in the preceding gure. -In this example a plate R', having in outline a triangular form, is mounted to swing independently on a horizontal pivot above the starting lever, subject to the influence of a spring, T, which tends to urge This plate is acted upon by the rear end of the ejector slide F. When the latter is moved rearward sufficiently to withdraw the ejector from the mold it throws the plate R' to the left, causing it to lock the stop dog K in the operative position over the lever L, so that the starting of the machine is prevented. When this form of mechanism is employed the ejector slide will be moved to the rearward to carry the ejector out of the mold by hand in the manner shown in Fig. 4, the rod Q being unnecessary. This rearward movement of the slide is that commonly practiced in commercial machines of the present day preparatoryto the exchanging of ejector blades.

I believe the present to be the rst instance in which the driving mechanism of a line casting machine has been controlled in any form or manner by the ejector which delivers the slugs from the mold.

It will be apparent to the skilled mechanic that the connections between the ejector and the clutch or equivalent driving device may be widely modilied inform and arrangement without changing the general principle of action or passing beyond the scope of my invention.

Having described my invention, what I claim is:

1.1In aline casting machine, the combi nation of a mold, anejector for delivering the slugs, and-intermediate mechanism to prevent the advance of the ejector if larger than the mold` 2. In a line casting machine, a slotted mold, a sliding ejector, mechanism to advance the ejector through the mold, and means for locking the operating mechanism out of action when the ejector is withdrawn from the mold. 1

3. In a line casting,r machine, a mold, an ejerfor, and ejector operating devices which stop with the ejector inthe mold, invcombination with of the machine until the drawn from the mold.

4. Ina line casting machine, a mold, an ejg'tor,l and operating mechanism-arranged to stap automatically with the ejector in ejector is withthe mold; whereby a reductionof the mold to a size less than that of the ejector is prevented.

A line casting machine in which the retractable ejector stops automatically in the mold, in combination with a manual device to carry the ejector out of the mold,

and means actuated by the latter to control the driving mechanism of'the machine.

6. In a line casting machine, a mold, ya reciprocating ejector, a clutch for driving@ the casting mechanism, and a clutch controlling device controlled in turn by the ejector; whereby the starting' of the inachine is prevented if the ejector is too large to enter the mold.

7. In a line casting machine of the class' described and in combination, the ejector; lever H, rod Q, and lever R, controlled by the rod and in turn controlling the htopi devices.

8. In a line castingr machine of the class described, the ejector cam, the ejector slide actuated thereby and capable of a limited independent motion. and a dopA controlled by the slide and in turn controllingthe motion of the machine.

9. In a line casting machine, driving mechanism therefor in combination with an adjustable mold, au ejector and means controlled by the ejector to prevent the operI tion of the machine.

l0. In a line casting machine, a reciprocating ejectorfin combination with a machine stop operated by the manual backwa rd movement of the ejector.

In testimony whereof I hereunto set my hand this eighth day of February, 1909, in the presence of two attcsting witnesses.

JOII Il. ROGERS.

lYitnesses z Divin S. KENNEDY. LUCY IC. SMITH.

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