US895902A - Machine for casting battery-grids. - Google Patents

Description

No. 895,902. PATENTBD AUG. 11, 1908.

- 1 J. A. sMITH.

MACHINE FOR CASTING BATTERY GRIDS.

PPLI T ONE 1 [A CA I ILED SEPT 20, 907 ZSHEETS SHEET L WITNESSES v 1 mymrofi W 1 Jku Ji ZezQMerJhZZ'Z v ATTORNEYS .PATENTED AUG. 11, 1908.

A v J. A. SMITH.

MACHINE FOR CASTING BATTERY GRID APPLICATION FILED SEPT. 20,1907.

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sm Inhnu I I l llIl Y hl I I l IQ Mfg? WITNESSES ATTORNEYS UNITED STATES PATENT OFFICE.

JOHN ALEXANDER SMITH, OF NEW YORK, 'N. Y.

MACHINE FOR CASTING BATTERY-GRIDS.

To all whom it may concern:

Be it known that I, JOHN ALEXANDER SMITH, a citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county and State of New York, have invented a new and 1m roved Machine for Castin Battery-Grids, which the following is a ull, clear, and exact de scription.

My invention relates to machines for easting battery grids and admits of general use, my more fparticular object being to produce a type 0 machine especially adapted for casting grids to be used in storage batteries.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of a machine made in accordance with my invention, this view showing the table and the fixed and movable matrix bars for casting the battery plate, and further showing the levers for raising all of the movable matrix bars in order to dislodge the plate after its completion; Fig. 2 is a cross section upon the line 22 of Fig. 1, looking in the direction of the arrow and showing articularly the manner in which thetread e levers and accompanying partsare employed to raise the movable matrix bars; Fig. 3 is a perspective showing one of the fixed matrix bars removed from the machine; Fig. 4 is a perspective showing another of the matrix bars removed from position, the bar in question being provided with indentations for the purpose of forming beads upon the grid and integral therewith, to be upset after the completion ofthe battery plate; and Fig. 5 is a fragmentary perspective, partly in section, showing the under side of the battery plate as provided with beads integral therewith and ready to be headed up, for the purpose of retaining the active material.

The table is shown at 6 and is provided with a large centrally disposed aperture 7, and further provided with legs 8 which rest upon the floor or ground. Mounted rigidly upon the table are two flat bars 9 of considerable size, extending substantially from one end of the table to the other and disposed arallel with each other. Above the flat ars 9 are angle irons 10 which are partially supported by end rods 11. For the purpose of securing the end rods 11 relatively to the Specification of Letters Patent.

Application filed September 20, 1907.

Patented Aug. 11, 1908.

Serial No. 393,801.

angle irons 10, screws 12 pass directly through the angle irons and into reduced portions 13 which are integral with the end rods 11. This construction renders the table 6, flat bars 9, angle irons 10 and end bars 11, very rigid in relation to each other and yet enables them to be taken apart if desired by the operator.

Located intermediate the end bars 11 are fixed matrix bars 14 of the general form shown in Fig. 3. Each matrix bar is pro vided with reduced ends 15 and with slots 16, the latter extending directly through its top. By the term fixed matrix bars I do not mean that the bars 14 are tight. On the contrary, they merely make a neat fit and can readily be removed if either of the angle irons 10 be disconnected from the table. Normally, however, the bars 14 have no motion,

16. Movable matrix bars are shown at 20,

and are provided with central portions 21 having slots 22, the form of these slots being somewhat similar to that of the slots 16. I11- termedia'te the central portion 21 and the outer or end portions of each movable matrix bar 20, are openings 23, as will be understood from Fig. 2. This-is for the purpose of enabling the movable matrix bars to be raised, the fixed matrix bars being held down by the angle irons 10. I

A number-of rods 24 pass loosely through guides 25 these guides being fixed upon the legs 8. These rods 24 are connected at their tops with a longitudinal flat bar 26 extending beneath all of the movable matrix bars 20 (see bottom of Fig. 1), and the bars 24 are movable by aid of a treadle 30. The bars 24 are connected with arms 24*, mounted rigidly upon a rocking shaft 28, which extends practically throughout the entire width of the machine. A second treadle 27 mounted at one end of the machine is connected rigidly with said shaft. The shaft is mounted'in bearings 29, and at its end opposite the treadle 27 is located the treadle 30.

A number of rods 31 are connected by arms 30 with the rocking shaft 28. These rods 31 extend loosely through guides 32, and are connected rigidly with a flat bar I designate this bar and the bar 26 as lifting bars. By depressing either treadle 27 or 30 the rods 24, 31 are all thrust obliquely upward, thereby raising the lifting bars 26, 33 and thus raising the movable matrix bars.

The grid, which may be of lead or alloy, is shown at 34, Fig. 5. It is cast by pouring the metal directly upon the fixed and movable matrix bars, as these parts are shown in Fig. 1. The grid, when removed, is provided with beads 35 formed by the slots 19, Fig. 4, and these beads, when afterward upset, serve to retain active material in the grid. In order to give the mold proper heat, I preferably provide the table 6 with burners 36 which may be fed by a gas pipe 37, as indicated by dotted lines in Fig. 2.

Disposed toward one end of the table 6 are four bars 38, 39, 40, 41, the bars 38, 40 being fixed matrix bars, and the bars 39, 41 being movable matrix bars. The four bars last mentioned, however, are shaped somewhat differently from the other matrix-bars and are provided with apertures 42, 43, 44, 45, for the purpose of forming a neck for the grid. Intermediate these bars are other matrix bars 43 analogous to the bars 17 shown in Fig. 4. All of the fixed and movable matrix bars are provided with mutilations 14, 18 for facilitating the distribution of heat received through the opening 7.

My invention is used as follows: The mold being heated, if desired, by aid of the burners 36, and the metal being ready, the latter is poured into the various slots 16, 19 and 22 and the apertures 42, 43, 44, 45, as will be understood from'Fig. 1. The metal finds its way through the various slots and passages crossing the same, thus forming a grid of the type shown in Fig. 5. The operator now depresses either treadle 27 or 30 according to which is most convenient. The rods 24, 31, being thrust obliquely upward, cause the lifting bars 26, 33, to raise all of the various movable matrix bars. This disengages the newly formed grid and raises it from the various fixed matrix bars which engage it and to which it may have more or less tendency to cling. The operator now removes his foot and thus allows the plate to be removed from the machine.

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

1. The combination of matrix bars provided with slots for facilitating the formation of a grid, and further provided with deeper slots for forming beads upon said grid.

2. The combination of a lurality of matrix bars, some being movab e relatively to others, and mechanism connected with said movable bars for actuating the same, said mechanism being provided with a 3. The combination of a table provided with an open space, a plurality of matrix bars supported by said table and extending across said open space, means for heating said matrix bars by aid of said open space,

and means controllable at will for moving some of said matrix bars relatively to others for the purpose of disengaging from said matrix bars a member cast thereupon.

4. The combination of a table provided centrally with an open space, a plurality of matrix bars supported by said table and extending across said open. space, means for directing a frame into said open space and directly against said matrix bars, and means for moving some of said matrix bars relatively to others.

5. The combination of a supporting member, angle bars mounted thereupon and provided with projecting flanges, end bars provided with reduced portions extending under said flanges, fixed matrix bars disposed intermediate said end bars and likewise pro vided with reduced portions extending beneath said flanges, a plurality of movable matrix bars disposed intermediate said fixed matrix bars, and means controllable at will for raising said movable matrix bars relatively to said fixed matrix bars.

6. The combination of a plurality of fixed matrix bars and a plurality of movable matrix bars, said fixed matrix bars being alternated in position with said movable matrix bars, all of said bars being provided with slots to facilitate the formation of a grid, and means controllable at will for lifting said movable matrix bars relatively to said fixed matrix bars.

7. The combination of fixed and movable matrix bars, some ofsaid bars being provided with a body portion of a grid to be cast, and others of said bars being provided with openings representing the neck of said grid to be cast, and means controllable at will for lifting said movable bars relatively to said fixed bars.

3. The combination of a table provided with an opening, a plurality of matrix bars mounted upon said table and provided with mutilations registering With said opening for the purpose of heating said bars through said opening, and means for moving some of said bars relatively to others.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN ALEXANDER SMITH.

' Witnesses:

WALTON HARIusoN, EVER-ARD B. IVIARSHALL.

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