July 5, 1918.

THE COLLIERY GUARDIAN.

11

By Tests The Best

“SINGLE HOOD”

RESULT OF LATEST TRIAL

o/ COAL 0 <Qo/ INCREASE
/o SAVED Ow I JJ /o EVAPORATION

“PERFECTA” BOILER CIRCULATOR Ltd., 39, Victoria Street, LONDON, S.W. 1.



H.T. Type GAS ENGINE

With 66 VARIABLE ADMISSION ” GOVERNING.

“WORKS LIKE

A

STEAM ENGINE.”

FOR DRIVING
ALTERNATORS IN
PARALLEL.

SINGLE CYLINDER OR COUPLED ENGINE.

Catalogue, with full particulars, on application to —

TANGYES LT-D birminsham.

No. 205 D