1156

THE COLLIERY GUARDIAN.

June 6, 1913

“BRITISH

PERMITTED

EXPLOSIVES

ROPES & BELTS

Treated with

CLING SURFACE

May be run SLACK WITHOUT SLIPPING and give
INCREASED POWER.

There are now many Imitations of Cling Surface, but they only
deceive and disappoint.

: Fracturite :
Pitsea Powder
: Britonite :

Photos of Belts and Ropes running SLACK in the most important works
in England sent on application to—

THOMAS & BISHOP, Sole European Agents,

Head Office—119-125, Finsbury Pavement, London, E.C. Teleg.—” Velcling, London.

THE

BRITISH EXPLOSIVES SYNDICATE Ld.

124, ST. VINCENT STREET

GLASGOW

Polish

Certainty—Economy—Cleanliness.

lAUFFER'S LUBRICANT

Regd. Trade Mark.

TANDARD MACHINE GREASE

AYING 80 to 90 OVER LIQUID OIL.

MAKERS: TRIER BROS.

CUMBERLAND WORKS, CAMBERWELL, S.E. , t j

Office: Caxton House, Westminster, S.W. I LOuQOIl,

Patent STAUFFER and
“TELL-TALE” Lubricators.

Agent for Northern Counties: Mr. JOHN YOUNC,

9, Croft Terrace, Jarrow-on-Tyne.

Price 3s. 6d. post free.

A Practical Handbook for Colliery Electricians.

ELECTRIC CIRCUIT PROBLEMS

in Mines and Factories.

— BY —

ELLIS H. CRAPPER, B.Eng., M.I.E.E.,

Head of the Department of Electrical Engineering at the University of Sheffield

THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C.

BOX TYPE

CARBON BRUSH HOLDER

“The Pioneers and Largest Makers in the World of Electrically Lit Miners* Lamps.’’

•SAFETY LAMPS*

Buyers Note.

THE PRESTWICH PATENTED
PROTECTOR
MINERS’ LAMPS

HAVE

Passed All

Home Office Testsy

TOGETHER WITH OUR

Specially Toughened Glasses.

SEE STAND No. 54, AGRICULTURAL HALL, LONDON,
May 29th to June 7th, 1913.

QUOTATIONS given for every description of Lamproom
Installations, Enamelled Iron Colliery Notice Plates, Etc.

WRITE FOR CATAI.OGIE

™ PROTECTOR LAMP& LIGHTING

Can be made to suit
any machine.

Spring entirely
enclosed.

Minimum circum-
ferential space
occupied.

Pressure in direct line
immediately over
centre of brush.

Substantially made
and no screws or
parts that can get
loose.

Easy adjustment
when running if
necessary.

OverlOOO inUse

MADE BY—

WESTMINSTER ENGINEERING CO. LTD.,
Wlllesden Junction, London, N.W.

MAPS of the BRITISH COALFIELDS,

Published jointly by the COLLIERY GUARDIAN Co. Ltd. and

3

Messrs. W. & A. K. JOHNSTON.

THE attention of Coal Owners, Coal Ex-
porters, Coal Factors, Coal Consumers
and commercial men generally is par-
ticularly called to the above Maps, which
have been specially prepared, and. show the
Collieries and their position with regard to
Railway Communication, Shipping Ports
and Canals.

These Maps will be found to be of incal-
culable value to all connected with the Coal
Trade, either as buyers or sellers ; while
manufacturers of Mining Specialities and all
whose business takes them to Collieries will
appreciate their value as a time and money
saver.

Lines of Railways are distinguished by
different colours.

1. Scotland.	3. South Wales.

2. North of England. 4. North Midland.

5. South Midland.

Size of each Map, 35 by 22 in.

PRICES of each Map:—In Sheet, 4s.; Mounted on Cloth, Rollers and Varnished, 6s.

Mounted on Cloth and in Titled Cloth Case, 6s., post free.

ECCLES, Near MANCHESTER.

’Phone : No. 13 ECCLES.

Telegrams: “PROTECTOR, ECCLES.’’

30 & 31, FURNIVAL STREET, HOLBORN, LONDON, E.C.