Reduces Run of Mine Coal to Stoker Size in Single Operation.

It will receive coal in any volume direct from a track hopper, grab bucket or mine car without the use of any mechanical device for regulating the feed.

It can be started up under full load and cannot be flooded or choked down.

Size

Jeffrey Single Roll Coal Crusher-Continued

Built in Three Sizes, Rated by Dimension of Roll.

FRONT

DIA

K

HOPENING

RIGHT MAND

X

BACK

S

This Crusher is ruggedly built, simple in construction and will work well under adverse conditions.

All joints are machined.

All parts are easily accessible. It is provided with an efficient safety device which protects against shock and accidents.

Do not use smaller size than 30 x 30 for run of mine or hard lump coal. See table for sizes on following page.

General Dimensions, in Inches-Continued.

Pulley

Tables of Speeds, Capacities and Horse Powers.

The following tables are based on experience and will give average results. The best results are obtained when speed of the roll is such as to give the required capacity listed. If such speed is different from that given in the table, the Horse Power should be corrected accordingly. A change of speed of as much as 50 per cent either way from the normal speed given in the table will change the Horse Power and capacity proportionately and is allowable.

Hard Bituminous Coal Such as Indiana Block.

Medium Bituminous Coal Such as Illinois Run of Mine.

The following information is necessary to enable us to specify the size of Crusher for the service required:

5.

6.

What is to be the capacity of crusher in tons per hour?

What Power is available?

9.

10.

11.

12.

13.

14.

If steam, give the boiler pressure, size and length of steam line.

If line shaft, give diameter of shaft, direction of rotation and location with respect to crusher.

State whether we are to furnish motor, engine, pulley on line shaft or belting. Is track hopper required? If so, give size and state if construction is to be steel, wood or concrete.

If crusher feeds an elevator or conveyer, state size and capacity of the ele

vator or conveyer.

If possible give sketch showing manner of installing crusher.

Jeffrey Single Roll Coal Crusher Bulletin No. 41, sent on request.