US1333727A - Crusher - Google Patents

Description

T. F. PHILIPPI.

CRUSHE'R.

APPLICATION FILED Nov. 23, 1917.

1,333,727. I Patented Mar. 16,1920.

mvenbdr-z T. r. Fnm i THEODORE F. PHILIPPI, OF EAST ST. LOUIS, ILLINOIS.

CRUSHER.

Specification of Letters Patent.

Patented Mar. 16, 1920.

Application filed November 23, 1917. Serial No. 203,524.

- To aZZ whom it may concern:

Be it known that I, THEODORE F. PHI- LIPPI, a citizen of the United States of America, a resident of East St. Louis, in the county of St. Clair, State of Illinois, have invented certain new and useful Improvements in Crushers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming apart of this specification.

My invention :relates to improvements in crushers, the object being to provide a strong and durable means for crushing, or hammering, and breaking coal and other materials. The new structure preferably includes a crushing ring made of hard mate: rial which will not rapidly wear away in service, and this hard material is preferably reinforced by a ring made of strong material which does not engage the material to be crushed. More specifically stated, the periphery of the crushing ring is provided with an annular row of projecting crushing elements adapted to hammer the material to be crushed. I have found that some materials, including coal, can be most effectively acted upon by a CIllShQIROf this kind. However, owing to the manner in which the projecting crushing elements repeatedly hammer and break the material, therino is subjected to several stresses, and the riction due to engagement with the ma-terlal tends to rapidly wear away the projecting crushing elements, or hammers. To overcome the undesirable results-of friction, I

. preferably make the main body of the crushing ring of hard and inexpensive material, such as chilled cast iron, and to provide the desired strength, this frangible material is- The crushing device herein shown com-.

prises a. housing 1, a rotary shaftv 2 mounted in said housing, and an arcuate grate 3 arranged in the housing. A rotary carrier i, arranged in the housing and fixed to the rotary shaft 2, may be provlded with any desired numberof arms 5, each having a pin '6 and acrushing ring A loosely mounted on said pm. The pin 6 extends into the opening 7 formed in the crushing ring.

The periphery of each crushing ring A is preferably corrugated to provide an annular row of pro ecting crushing elements, or hammers, 8 adapted to str ke or hammer the material to be crushed or broken.

The shaft 2 may be driven by any suitable power mechanism with the result of causing th'e crushing ring, or rings, A to travel around the axis of the shaft. Each crushing ring A also rotates about its own axis, and the projecting crushing elements, or hammers, 8 repeatedly hammer and break the material to be crushed. Each projecting crushing element, or hammer, 8 is preferably in the form of a wedge-shaped rib, arrangedtransversely of the ring A to provide an elongated tapering hammer. Each of these projecting elements is rounded at its outer edge as shown in Fig. II.

Each crushing ring A is preferably made of hard frangible metal, such as chilled cast iron, and a reinforcing ring 9 made of relatively strong material, such as wrought iron, inclosed by said hard frangible metal.

I claim A. ring of the character described having an annular row of projecting hammersadapted to successively strike the material to be broken, said projecting hammers and the body of said ringbeing made of chilled cast iron, and a reinforcing ring inclose'd by said chilled cast iron, each of said projecting hammers being in the form of a wedgeshaped'rib rounded at its outer edge and arranged transversely of the ring to'provide an elongated tapering hammer, and the reinforcing ring being surrounded by and located adjacent to the annular row of projecting hammers.

. In testimony that claim the foregoing'l I hereunto afiix my signature.

THEODORE r. PHILIPPE.

Images