April 12, 1918.

THE COLLIERY GUARDIAN.

735

By Tests The Best



RESULT OF LATEST TRIAL

COAL 0 |Qo/ increase
SAVED VW | JJ /O EVAPORATION

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

TANG YE ’S

“H.T.” Type GAS ENGINE

With “VARIABLE ADMISSION” GOVERNING.

‘WORKS LIKE

STEAM ENGINE.

■

■

IB* S

lg
F .

FOR DRIVING

ALTERNATORS IN

PARALLEL.

SINGLE CYLINDER OR COUPLED ENGINE.

Catalogue, with full particulars, on application to —

TANGYES L™ BIRMINGHAM.

No. 205 D