US1011718A

US1011718A - Type-metal pot.

Info

Publication number: US1011718A
Application number: US65984111A
Authority: US
Inventors: Ernest B Barber
Original assignee: ONTARIO TYPE MACHINE Co Ltd
Current assignee: ONTARIO TYPE MACHINE Co Ltd
Priority date: 1911-11-11
Filing date: 1911-11-11
Publication date: 1911-12-12
Anticipated expiration: 1928-12-12

Description

E. B. BARBER. TYPE METAL POT. V APPLICATION FILED MAY 31, 1910. RENEWED Nov. 11, 1911. 1 1,01 1,718. Patented-Dec.12,1911.

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E. B. BARBER. TYPE METAL POT.

APPLICATION FILED MAY 31, 1910. RENEWED NOV. 11, 1911. 1,01 1 ,7 1 8.

' Patented Bed. 12, 1911.

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TYPE-HEEAL PO'I.

specification of Letters Patent.

Patented Dec. 12, 19st.

Application filed May .81, 1910, Serial R0. 564,289. Renewed November 11, .1911. Serial No. 659.8%.

Y To all-whom ifrmay concern:

r y p t Be it known that I, ERNEST BENJAMIN BARBER, of the city of Brooklyn, in the county of Kings and State of New York, one of the United'States of America, have invented certain new and useful Improvements in Type-Metal Pots; and I hereby declare that the following is a full, clear, and exact description of the same.

In my application for machines for easting and composing type, filed March 2nd, 1909, Serial Number 480,828, I have shown anddescribed two melting pots, one a large supply pot from which the molten metal is pumped to the smaller or working pot, both ots being supplied with suitable burners or heating and means whereby the overflow returns from the working pot to the supthe working pot having a vertical well, plston and outlet to the type body mold, in which, and at proper intervals,

' the piston displaces the whole body of molten metal in the type metal well and forces a stream of it into the type bodyhereinafter described, I have reduced the mold. a c

- In my concurrent application 564,290 I have shown and described certain structural changes in the type casting machine forming the subject matter of my said application 480,828, and as a result of theseand other structural changes in the original machine I found it necessary to redesign the working melting pot to increase the capacity of the type producing mechanism and make a.- working melting pot suitable for a high-speed operating machine, producing either single type or plural types. In redesigning my Working melting pot I abandoned the use of the vertical type metal well shown in my former application, owing to the retardation of the piston ejector by the relatively large body of molten metal therein, and I now use a horizontal type .metal well with a capacity equal only to body mold, the type metal well' havin inlets below the level of the type metal w ich are so disposed with regard to the scum surface that the metal dirt:an d oxids are prevented from entering them, thus obviatimg tfhe difficulties heretofore experienced thererom.

I have also provided the type metal well and the piston ejector with an actuating mechanism moving thetype metal well in the direction of the type body mold until the nozzle enters the aperture in the foot plate and then moving the piston ejector to force a stream of type metal through the nozzle into the mold cavity, afterward retracting the piston ejector and type metal well to return them to their normal or passive position, this operation of the actuating mechanism preventing either a premature discharge of the type metal before the nozzle and type body mold are locked up or a leakage of the type metal when the cast is made. By these changes and others that I have made in the working melting pot moving parts, in weight, to the least possible, and have obtained a commensurate increase of speed and efficiency in operation, and have produced a casting apparatus which is practically self adjusting and of uniform action, and I have obtained a straight line movement for locking the nozzle to the foot plate of the type body mold securing thereby a reciprocating movement for the type metal well in parallel relation to the mold cavity.

For an understanding of the invention reference is to be had to the following dein which:

Figure 1, is aperspective view of a working melting pot made in accordance with my present invention. Fig. 2, is a plan view of the same showing the nozzle lockedin the castingposition. Fig. 3, is a vertical section on the line aa, with the parts in the same position as in Fig. 2. Fig. 4, is a similar view to Fig. 3, with the parts in their retracted position, and Figs. 5 and 6 are perspective views of the type metal well and piston ejector respectively.

Like characters of reference, refer to like parts throughout the specification and draw- %he capacity of the metalreservoir a of scription and to the accompanying draw-..

, large capacity, suitable flow and overflow ducts being provided for the circulation of the typemetal between the two melting pots, the supply melting pot and the flow and overflow ducts not being shown or described as they form no part of the present invention.

The type metal in the metal reservoir 0 is kept in a molten condition, at a substantially uniform temperature, by a burner b from which the heat passes, across the bottom a, and upward through suitable vents c, in the wall a", for the upward circulation of the heat.

A .vpe metal welld is horizontally suspended in the metal reservoir a, below the normal level of the type metal, and is provided with an inlet d below the scum surface for the exclusion of the metal dirt and oxide.

The type metal well is provided with a spout e and nozzle f through which a stream of metal is forced by the-operation of the piston ejector g; The forward movement of the piston ejector occurs when the nozzle has entered the aperture in the foot plate it, forming one side of the mold cavity, and the retraction occurs before the return of the type metal well to its normal position as hereinafter described. The ejector is provided with a lug Z connected by a link 7' to the crank i, actuated by a cam 11 through the agency of the link k crank in and hollow rock shaft The lug Z extends through an elongated slot m in the type'metal well, which permits the ejector to move forward and back independently of the type metal well when the working meltin pot and mold are locked up. The cam z" is mounted on the high speed shaft 2, and this shaft is provided with a cam 72" actuating the rock shaft g through the agency of the lever a link 27 and crank y. The rock shaft 3 is provided with a crank p moving the type metal well back and forth during the oscillationof the rock shaft. During the operation of the type casting machine the crank p when actuated moves the type metal well toward the type body mold r, the stroke of the crank and connected parts being such as to project the nozzle into the aperture in the foot late h. Provision is made whereby the e ection of the type metal is prevented until the nozzle is locked in the aperture of the foot plate. This provision in the present instance consists in forming the link 9 connecting the type metal well to the crank 79 with a shoulder s normally engaging the lug j forming part of the link j, to

emme carry the latter and the piston ejector for ward until the type metalwell is locked to the type body mold, the movement of the piston ejector then being continued by means of the earn 2'', lever 2, link is, crank 7c hollow rock shaft is, crank 71 and link 7' to force a stream ottype metal into the mold cavity. The movement of the link is under the influence of the cam 11 compresses the sprin a2. When the levers a and z" are free rom the influence of the cams p and,

i, the spring as pressing against the fixed stop :12" and collar w on the link is effects the return of all the movable parts to-their normal position.

Qther means may be provided for efiecting the same ends within the scope of the appended claims without departing from the principle of the invention but by means of a working melting pot constructed as above described, I am enabled to overcome the disadvantages resulting from, the necessity of moving the entire body of type metal, and, the presence of the metal dlrt and oxide in the type metal well and mold cavity.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a working metal pot for a type casting machine, a metal reservoir, a type metal well horizontally suspended therein, a pis ton ejector operating horizontally in the type met-a1 well, operable means to bring the .type metal well into operative relation with the type bodymold, and operable means causing the actuation of the piston ejector.

2. In a working melting pot for a type casting machine, a metal reservoir, a type metal well horizontally suspended therein and having a nozzle to deliver a stream of molten type metal in a substantially straight line with the type metal well, a piston e ector operating horizontally in the type metal well, operable means to bring the type metal well into operative relation with the type body mold, and operable means causing the actuation of the piston ejector.

3. In a working melting pot for a type casting machine, a metal reservoir, a type metal well horizontally suspended therein, a pistonejector operating horizontally in the type metal well to deliver a stream of molten type metal in a substantially straight line therefrom, a link connected to the type metal well, operable means actuating t link to bring the type metal well into operative relation with a type body mold, a link connected to the piston ejector, op-- erable means actuating the link and piston ejector, and means causing the retraction of the piston ejector link and type metal well when the cast is made.

4. In a working metal pot for a type cast having an inlet submerged below the normal level of the metal in the metal chamber, and an elongated slot extending lengthwise of the type metal well above the metal level,

,a piston ejector operating horizontally in the type metal well and having a lug projecting through the elongated slot, a link connected to the type metal well in front of the slot and having a projecting shoulder, operable means actuating the link to bring the type metal well into 0 erative relation with a type body mold, a 1111]! connected to the lug of the piston ejector, a lug for the link engaging the shoulder when the working melting pot is moving into operative relation with, and during its retraction from, the type body mold, operable means actuating the linkand piston ejector, and

operable means causing the retraction of the piston ejector and type metal well when the cast is made.

5. In a working melting pot for a type casting machine, a metal reservoir, a piston well horizontally and reciprocatingly supported in the metal reservoir and a piston ejector operating in the piston well, the piston well having a nozzle to deliver the metal horizontally to a type body mold.

Brooklyn, N. Y. May 21st,-1910.

ERNEST B. BARBER.