July 23, 1915.

THE COLLIERY GUARDIAN.

191

Mining BOOKS

At Tremendous Reductions ! New Books at 25 per cent.
Discount! Books on Mining, Technical and all other Sub-
jects. Sent on Approval. State Wants. Send for Lists.
Books Purchased. W. & G. FOYLE, 121423, Charing
Cross Road, London, W.C.

COLLIERY
OFFICIALS’
LEATHER
CAP

Is Comfortable,
Light and Effective.

Made to fold foi
Pocket
or otherwise.

Send 6/= P.O. for
Sample Cap to the
Ma icer—

CEO. WHITE,

31, High Street, Hormanton, YORKS.



Br1dZe-adpatent Friction Clutches
&. Hauling Installations
a speciality.

___SEE ADVERTISEMENT LAST ISSUE, PAGE 147.

Bole Makers— DAVID BRIDGE & CO. LTD.,
Haulage Works, CASTLETON, Manchester.

The Gosforth Foundry Co. Ltd.

Malleable Ironfounders,
DRONFIELD, near SHEFFIELD.

Makers of all kinds of

DRIVING & ELEVATOR CHAINS,
SPROCKET WHEELS, ELEVATOR
BUCKETS, &c.

HAGGIE BROS. Ltd.

Gateshead-on - Tyne.

Established 1800.

MANUFACTURERS OF IMPROVED PATENT

Flat and Round Wire and Hemp

ROPES

OF ANY LENGTH FOR COLLIERIES AND RAILWAYS,
FROM EITHER BEST SELECTED CHARCOAL IRON,
IMPROVED PATENT OR PLOUGH STEEL WIRE. . .

Flexible Galvanized Steel Hawsers (all guaranteed to
Lloyd’s test), with Winches or Reels and Stoppers.

Wire Signal Lines for Railways and Collieries.

Copper Lightning Conductors, complete.

Galvanized Fencing Strand.

Galvanized Wire Rope for Ships’ Rigging.

Galvanized Wire Rope fitted up to order.

Picture and Sash Cord made from Copper, Brass Plated
or Galvanized Wire.

Crane Ropes, made to suit small Drums and Pulleys.

We have Crane Popes working on the same Barrels as Chains.

Wire Rope Springs; Wire Rope Pulleys.

Wire Rope Composition or Grease.

White Block Ropes and general Hemp Cordage.

Chains of every description.

Wire Ropes made specially to suit small Pulleys.

We can guarantee uniformity of all our Ropes, as we draw our own
Wire from Special Bods, got up to our own specification.

Owing to our “ Special Quality,” have Haulage Ropes running
14 years and Winding Ropes 6| years.

Telegrams Haggle, Gateshead.”

British Manufacture Best Quality at Lowest Prices
Every description either separate or in cases.
SPECIAL 12 tn. CARDBOARD PROTRACTOR,
reading to i°, at 2«. Gd., postage Gd.

ILLUSTRATED CATALOGUE ON APPLICATION.

WU MARI I NR Mathematical Drawing and Surveying
■ rl« FiMnfcillVWy Instrument Manufacturer,

47, Finsbury Pavement, London, E.C.

Established 1851.	Factory—HACKNEY, E.

British Insulated & Helsby Cables Ld.,

ELECTRICAL CABLE MAKERS & ENGINEERS.

REGO. TRADE MARK.

Works: Prescot, Helsby, & Liverpool.

SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK.

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Elliptic Full-way Cock

JL	(M. Allen’s Patent)	OP

costs no more than an elongated-
way cock, and is equal in service
to a round-way full-bore cock.

W. H. WILLCOX & CO. LTD., 32 to 38, Southwark Street, London.

CLEAR-FLOW
BORE.”

Write
TO-DAY
for detailed
particulars
and
prices.

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Semet-Solvay Coke Ovens

SECTION OF OVEN

SHOWING SOLID CONSTRUCTION.

Strongest in Design.
Separate sets of flues to each oven.
Very low Maintenance Cost.

“DIRECT” AMMONIA RECOVERY PLANT,
giving increased yield of Sulphate, with less
Labour, and a saving in Steam consumption.

THE COKE OVEN CONSTROCTION CO. L!

Howard Chambers, 155, Norfolk Street, SHEFFIELD.