246

THE COLLIERY GUARDIAN.

February 1, 1918.

JOHN WOOD & SONS, L”

Engineers, BARLEY BROOK FOUNDRY, WIGAN.

188-H.P. “ENDLESS”

Telephone—No. “55” Wigan.

Telegrams—“ Haulage, Wigan,*

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Fitted with

AUTOMATIC BRAKE



and Improved
“ OUTSIDE*
BAND”
FRICTION
CLUTCH.

Haulage Gears of every type.

WINDING, PUMPING & AIR COMPRESSING ENGINES.

IX
= o

Established I8OO.	—	Telephone No. 5 77

BRASS TIME CHECKS

“GRIPTITE”

JOINTING

COMPOSITION

FOR ALL KINDS OF FLANGED JOINTS IN
CONNECTION with STEAM, GAS, or WATER.

“ GRIPTITE ” stands highest pressures at any tem-
perature. It is non-poisonous and British made.

It is 75 °/e GREA TER in BULK

THAN^ LEAD^ COMPOUNDS^

“ GRIPTI FE” is used by several Engineering Firms,
Iron Works, Gas Companies, Mills, Breweries, &c.

Supplied in kegs i, a & 1 cwt. at 40/- per cwt. (carriage paid).

Kegs extra at cost price. Mixed and ground in oils, ready for use.

CROUCH & CO.,

Ruskin Works, Ruskin Av., Manor Park, LONDON, E. 12.

JOHN LAWSON A SONS,

Manufacturers of every kind of

STEEL STAMPS, LETTERS,
FIGURES, BRANDS, STENC8L
PLATES, &c.

Roebuck Letter Works, 26, Carver Lane, SHEFFIELD.

(SURVEYING INSTRUMENTS

Davis’s

Cranked

Dial

DAVIS’S IMPROVED HEDLEY DIAL WITH



r Theodolites,

1 Levels,
Barometers,
etc.

CRANKED LIMB,

ENABLING SIGHTS TO BE TAKEN TO ANY DEGREE FROM
LEVEL TO 90 DEGS. UP OR DOWN.

Davis’s Surveying Instruments
are used in the majority of Mines in the
United Kingdom, the Colonies, and other
parts of the World.

PLOTTING INSTRUMENTS

for Railways, Mining Engineering, and Field work.

SEZJNTD FOR LIST No. 41/1 A.

JOHN DAVIS & SON

fOfflwhuA I TH ALL ®A!HTS WORKS, DERBY;

8 U01 M V J M ft U ■ ■ & 17, Victoria St., Westminster, London, S.W.

Telegrams—‘‘Davis, Derby.” Telephone—240 Derby.