December 3, 1915.

THE COLLIERY GUARDIAN.

1123

66 Safety First ”
combined with
Reduced Costs.

This graphic comparison shows that the Sullivan Ironclad offers greater safety and
lower working costs than other coal-cutters, and why a certain large colliery has

adopted SULLIVAN IRONCLADS.

NO THRUST

NOCONTACT
WITH PROPS

Former Method.

Ironclad Method.







Vibration transmitted to top through timbers.

Intermittent Ratchet Haulage.

Reciprocating Air Engines.

Haulage rope renewed frequently but broken
strands caused lacerated hands.

Props were forced out, sometimes causing
bad falls.

Bars or straps required and props closely
set. Some props had to be knocked out
to allow machine to pass—which caused
falls, delays, and extra labour.

WRITE FOR CATALOGUE 3063K.

SULLIVAN IRONCLADS

The only Longwall Coal-Cutters with a

CONTINUOUS CHAIN HAULAGE.









No contact with props. No vibration
carried to top through props.

Continuous chain haulage.

No reciprocating parts — TU RBI NAIR
motors.

Chain haulage gear—long life and no danger
to driver’s hands.

No contact with props. No thrust.

No bars used and fewer props because no
shaking of roof, and narrowness of
machine leaves less top unsupported. A
penny a ton saved in labour and timber.

SULLIVAN MACHINERY CO.,
(Established 1850),
SALISBURY HOUSE, LONDON, E.C.

DISTRICT AGENTS :

SWINBURNE & HARDIE, Milburn House, Newcastle-on-Tyne.

F. J. LYONS-DAVIS, 23, Victoria Avenue, Cardiff.

ROBERT LAVERICK, 2, Claremont Gardens, Nottingham.

ARCHIBALD BAIRD & SON LTD., Hamilton.

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......."........

■

250-h.p. Haulage Gear, by two Renold Silent Chains, each
1’75 in. pitch, 12’2 in. wide. Ratio of reduction 8’4: 1.



For High Speed Driving.

The illustration shows a 250 H.P. Gear at Messrs.

Pease’s West Colliery Ltd., Crook, Co. Durham.

The transmission is by

Renold Silent Chain.

ADVANTAGES:

High Efficiency. Smooth and Quiet Running. Adaptability.

Large ratio of reduction. For all powers up to 500 H.P.

Write for Catalogues of Renold Silent Chains ; also of Renold
Steel Roller Chains for Screening Plant, &c. Renold
Steel Block Chains for Haulage, Conveyor, Elevators, &c.

HANS RENOLD LTD., Dept. 42, Manchester.

THE GOSFORTH FOUNDRY GO. LTD

Malleable Ironfounders,

Dronfield, near Sheffield

■'Z. • *

. 4



Makers of all kinds of Driving and Elevator Chains, Sprocket Wheels, Elevator Buckets, &c.