US1302612A - Rammer for molding-machines. - Google Patents

Description

G. W. WENDELL. RAMMER FOR MOLDING MACHINES.

2 SHEETS-SHET i- INVENTOR WITNESSES s. w. WENDELL, RAMMER FOR MOLDING MACHINES.

APPLICATION FILED JULY 29.1911.

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GEORGE WESLEY WENDELL, OF JOI-INSTOWN, PENNSYLVANIA, ASSIGNOR TO -UNION RADIATOR COMPANY, OF JOHNSTOWN, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

RAMMER FOR MOLDING-MACHINES.

Specification of Letters Patent.

Patented May 6,

Application filed July 28, 1917. Serial No. 183,276.

To all whom it may concern:

Be it known that I. GEORGE WVEsLEY WEN- DELL, a citizen of the United States, residing at J ohnstown, in the county of Oambria, State of Pennsylvania, have invented a new and useful Improvement in Hammers for Molding-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a plan view of a machine embodying my invention;

Fig. 2 is a sectional side elevation of the same on the line 11-11 of Fig. 1;

Fig. 3 is a. view partly in end elevation and partly in vertical section; and

Fig. 4 is a detail sectional view showing the actuating connections for one of the ramming tools.

My invention has relation to rammers for molding machines, and is designed to provide a power-operated rammer of simple and efficient character.

The nature of myinvention will be best understood by reference to the accompany ing drawings, in which I have shown the preferred embodiment of my invention and which will now be described, it being me mised, however, that various changes can be made in the details of construction, arrangement and combination of the several parts, without departing from the spirit and scope of my invention as defined in the appended claims.

In these drawings, the numeral 2 designates metal ramming tools, such as are used ordinary hand ramming, but the particular design of which will depend upon the particular kind of work it is intended to perform. These rammers are driven by a plurality of eccentrics 3, which are mounted on parallel shafts 4, journaled in suitable bearings on the frame 5. The eccentrics on each of the shafts are set at an angle to each other as well as to the eccentrics on the other shafts, so that the ramming tools will be successively operated. The intermediate shaft 4: is shown as being driven by a pulley 6, and is connected by gears 7 with the other eccentric shafts. The several eccentrics are set at difl'erent angles, as shown.

Each of the ramming tools 2 is attached to a helve 8, mounted in a metal socket 9. In the operation of the machine, it is necessary to provide for adjustments in effective length of the rammers and also to regulate the weight of the blows. For this purpose, I provide each r'ammer with a sleeve 10,

having means at its upper end for connec- 9. 17 is a jam nut threaded on the rod 16,

and is for the purpose of locking the nut 13 after the proper adjustment has been made. 18 is a guide sleeve which screws into the lower end portion of the sleeve 10. 19 designates a bearing block or plug for the upper end of the spring 11. These blocks can be made of different vertical heights so as to increase or decrease the tension of the spring, and thereby regulate the blow of the rammer.

The machine when in operation is mounted above the mold to be rammed on suitable supports, the mold passing underneath the machine while being rammed.

The number, arrangement and character of the rammers can be changed to suit the particular work being done in any case. The entire machine is simple in its construction and operation, and by adjusting means such as described, the length of stroke of the rammers can be individually varied and the effective action of their blows changed as may be desired.

I claim:

1. A mold-ramming machine comprising a plurality of reciprocating ramming tools, power means for reciprocating said tools, and spring means for varying the individual action of each of the tools, substantially as described.

2. A mold-ramming machine, comprising a plurality of removable vertically reciprocating ramming tools, poweractuating means for said tools, and adjustable spring means for separately adjusting the blow and length of each tool, substantially as described.

3. A mold-ramming machine comprising a plurality of vertically reciprocating ramming tools, power-actuating means for successively actuating said tools, and adjustable spring means for separately adjusting the length and ramming blow of each tool, substantially as described.

a. A mold-rannning machine comprising a plurality of vertically reciprocating ramming tools, an actuating shaft, eccentrics on said shaft, actuating connections between the respective eccentrics and the respective ramming tools, and means for separately varying the length of said connections, substantially as described.

5. A mold-ramming machine comprising a plurality of vertically reciprocating ramming tools, an actuating shaft, eccentrics on said shaft, actuating connections between the respective eccentrics and the respecti e ramming tools, and means in said connections for separately varying the blow of each tool, substantially as described.

6. A. mold-ramming machine comprising a plurality of intergeared shafts, a plurality of eccentrics on each of said shafts, a plurality of vertically reciprocable ramming tools, and yieldable actuating connections between said tools and the straps of said eccentrics, substantially as described.

7. A mold-ramming machine comprising a plurality of intergeared shafts, a plurality of eccentrics on each of said shafts, a plurality of vertically reciprocable ramming 30 also the effective blow of the tool, substani tially as described.

In testimony whereof, I-have hereunto set my hand.

GEO. WVESLEY l/VENDELL.

Copies of this patent may be obtained for five cent: each, by addressing the Commissioner of Patents.

Washington, D. 0.

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