US597846A - Dora in guam - Google Patents

Description

(No Model.)

W W. GRISGOM, Deod.. D. I. H. Gmscom, Exeoutrix. MANUPAGTURE OE' STORAGE BATTERY GRIDS.

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UNITED STATES PATENT @muon XVILLIAM GRISCOM, OF I'IAVERFORD, PENNSYLVANIA; DORA. INGIIAM HALE GRISCOM EXEC'UTRIX OF SAID WILLIAM IV. GRISCOM, DECEASED.

MANUFACTURE OF STORAGE-BATTERY GRIDS.

SPECIFICATION forming' part of Letters Patent No. 597,846, dated January 25, 1898.

Application iiled November 22, 1895. Serial ll'ol 569,850. (No model.)

To a-Z whom zit 11i/ity concern:

Be it known'that I, WILLIAM W. Gnrsooir, a citizen of the United States, residing at Haverford, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in the Manufacture of Storage-Battery Grids, of which the following is a specification, reference being had therein to the accompanying drawing. ro llIyinvention relates to machines for casting storage-battery grids, and has for its object to improve the constructionl of such machines and to provide means whereby grids may be cheaply and rapidly made and whereby grids of complicated form may be more perfectly cast; and to these ends my invention consist-s in the novel arrangement, construction, and combination of parts hereinafter more particularly described. 2o wWhile the invention is intended more particularly to be used in making storage-battery grids from lead, it is evident` that it can be used for making other and different articles from other and different materials and may with proper modiiications be applied whenever it is desirable to make difficult castings for any purpose whatever.

In the accompanying drawing, forming a part of this specidcation, the figure is a lon- 3o gitudinal section of a machine made in accordance with my invention, parts being in side elevation.

The pots or ladies l l are suspended from opposite ends of a walking-beam 2 and are connected to said beam by means of chains or rods secured to blocks I6, adapted to move 'in slots l5 of the beam 2 to accommodate the varying positions ofthe ladies. An oscillating movement may be imparted to the walking- 4o opposite ends of the beam and passing over suitably-arranged pulleys to a point within easy reach of the operator. Each ladle is inclosed within a casing of such diameter as to leave a space between the two, and the ladle is heated by means of a burner 3, supported within the casing beneath the ladle and communicating with a flexible supplypipe let.

5o The ladies I are provided with outlet-openings controlled by means of valves 6, andl beam 2 by means of cords 1,3, connected to these openings communicate with openings 7b in the chill-frame 7 through pipes 5, which are joined to the chill-frame in such manner as will permitthem to be moved vertically. 5 5

1Within the chill-frame is iixed the lower half S of the chill, forming, in connection with the sides of the frame, a tight box or receptacle, the openings in the chill-frame leading from said receptacle from opposite sides 6o thereof and at points immediately above the top of the lower half of the chill.

The upper half of the chill lits closely the space between the sides of an auxiliary chillframe 7, the sides of which register wi th those 65 of the main chill-frame 7 when the halves of the chill are together, and this auxiliary frame is hinged to one side of the main frame at I0.

The sides of the main chill-frame project above the top of the lower half of the chill, 7o forming a surrounding iiange, and when the upper half of the chill is in engagement with the lower half its edges are in engagement both with the sides or iiange of the main frame and those of the auxiliary frame, and by reason of this the auxiliary frame cannot be swung upon its hinge until the upper chillsection is moved vertically out of engagement with the sides of the main frame, when the said section and frame may be swung rear- 8o wardly in the arc of a circle to permit the lower chill-section to be readily accessible.

It will be noted, too, that when the upper chill-section is in position upon the lower section its edges serve to close the openings 7* on the main chill-frame, said openings being gradually closed as the upper chill-section descends.

In order to effect the vertical movement of the upper chill-section, a centrally-slotted le- 9o ver 1l is pivoted upon the frame 7n, and into the slot of this lever projects a stud '17 from the upper chill-section. From this it will be obvious that when the chill-section is in its lowermost position the stud will be at one end 9 5 of the slot in the lever Il, and as said chill-section is lifted vertically the position of the stud in thev slot constantly changes until it is brought into contact with the opposite end of the slot, such contact taking place when the roo chill-section is above the sides of the main frame 7, and by reason of this contact the chill-section becomes locked against any fur- A tially vertical position.

It is sometimes desirable to vary the thickness of castings, and to accomplish this I provide means for adjusting the upper chill-section nearer to or farther from the lower section, such means consisting of guides 7c upon the front edge of the frame 7, having a vertical series of openings for reception of a pin, the said pin servin g as a bearing for the lever ll when it is in its lowered position. From this it will be apparent that if the pin be inserted into the lowermost opening of the series the upper chill-section will be permitted to approach the lower section nearer than if the pin were inserted into any other opening of the series.

While the lower chill-section is shown and described as formed separately from and connected to the chill-frame and the sides of the said frame surrounding and extending above the chill-section to form a flange, itwill be understood, of course, that the surrounding flan ge may be formed integral with the moldsection and the opening 7 b extended through such an ge.

In their normal positions the ladles are each below the plane of chill-section 8, and while in this position metal cannot be introduced into the chill. In the operation of casting, however, the walking-beam is canted, which has the effect of elevating one of the ladies above the level of the chill and simultaneously lowering the other ladle. The metal then runs-into the receptacle formed by the sides of the main frame and the lower chillsection, completely filling the Arecesses in the latter. After this the auxiliary chill-frame is swung into position upon the main frame, and the upper chill-section is then lowered by means of the lever 1l, and in its descent it forces all surplus metal through one of the openings 7b into the lowest ladle. When the upper chill-section is in position, its edges close both the openings 7? and prevent both the supply and discharge of the metal to and from the chill.

That I claim isl. In a sectional mold, the combination with one section having a surrounding flange extending beyond its face, of a second section adapted to be received between the flange of the iirst section, means for moving the second mold-section toward and away from the lirst section, and a receptacle below the plane of the mold, communicating with the interior thereof for reception of the super nous metal, substantially as described.

2. In a molding-machine, the combination lwith a stationary chill or mold, of a ladle and connections between the mold and ladle, said connections permitting the ladle to be moved above and below the plane of the mold, substantially as described.

3. In a molding-machine, the combination with the upper and lower sections of a chill or mold, the lower section being surrounded by a frame which extends above it, of a ladle communicating with the interior of the mold through an opening in its surrounding frame, substantially as described.

4. In a molding-machine, the combination with the chill or mold, of a ladle, a pipe connecting the ladle with the mold, and a loose joint between the pipe and mold whereby the ladle and pipe maybe moved with relation to the mold, substantially as described.

5. In a molding-machine, the combination of the chill or mold formed in sections, one of which is stationary and the othermovable, a main frame for supporting the stationary chill-section, said frame partially inclosing and projecting above the stationary chill-section, an auxiliary frame hinged to the main frame at one side and adapted to contain the movable chill-section, and means for lifting the said chill-section independently of the frame and for moving both simultaneously, substantially as described.

6. In a molding-machine, the combination with the upper and lower sections of a mold or chill, the lower section being surrounded by a frame which extends above it, of a ladle and connections between the ladle and the interior of the mold, said connections permitting the ladle to be moved above and below the plane of the mold, substantially as described.

7. The combination withV thev mold, of a ladle, a pipe connecting the mold and ladle and arranged to be moved through an arc of a circle independently ofthe mold and above and` below the plane thereof, and means for heating the ladle, said means being arranged to move with the ladle, substantially as described.

In testimony whereof I afx my signature in presence of two witnesses.

WILLIAM W. GRISCOM. Witnesses:

WM. K. TAYLOR, JAMES W. MCLAUGHLIN.

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