1316

THE COLLIERY GUARDIAN.

June 28, 1918.

chamber inside of which the burning fuse is hermetically
closed. The smoke or gas caused by the burning fuse
will have no other exit than through the water. (Two
claims.)

115539. Concrete Props and Beams. E. F. Lewis and
R. J. Lewis, Gilfach, Bargoed, near Cardiff.—Instead
of employing wood, as usual, for timbering galleries in
mines, jt has heretofore been proposed to employ framings
made in several sections of reinforced concrete, and in
one instance it has been proposed to employ a concrete
framing comprising two props, each having the upper
end curved (convex) in the lengthwise direction of the
cross beam to be supported thereon, and the said cross
beam provided on its underside at each end thereof with
a. curved (concave) recess, i.e., curved in the lengthwise
direction of the beam to correspond with and fit on the
upper end of said props; and the present invention re-
lates to an improved construction of concrete props and
beams for forming supports for the roofs of coal mines
and other mines or for the like purposes. Now, accord-
ing to the present invention, the concrete props and beams
or supports are constructed with a special joint (different
from the joint referred to in the aforesaid known arrange-
ment) at each end of the cross beam and the upper end
of each prop as hereinafter described; and according to
a further part of our invention we construct a special form
of heel or foot for each such prop. (Six claims.)

115605. Valve Apparatus for Rock Drills. G. H. T.
Rayner, Grange Farm House, Carter Knowle-road, Abbey-
dale, and P. Rayner, 38, Chantrey-road, Woodseats,
Sheffield.—This invention relates to valve apparatus for
rock drills and the like fluid pressure operated tools of
the type in which the valve is of cylindrical cup shape
form and has holes in the wall for the escape and admis-
sion of air. The object is the construction and arrange-
ment of valve apparatus of the above-mentioned type by
means of which it will be easy in the designing and
construction of rock drills and like fluid pressure operated
tools to determine the length of the return stroke of the
piston as may be desired under certain conditions, and
thus increase or decrease the number of blows per minute
and the power of each blow. (Three claims.)

NEW PATENTS CONNECTED WITH THE
COAL AM IRON TRADES.

Applications for Patents.

June 17 to 22 (inclusive.)

[Note.—Applications arranged alphabetically under the
names of the applicants (communicators in parentheses).
A new number will be given on acceptance, which will
replace the application number.]

Aktiebolaget Atlas Diesel and Andersson, G. Pneumatic
rock drilling machines. (10047). 10048)

Aktiebolaget Ingeniorsfirma F. Egnell. Pumping devices.
(9993)

Allen, P. R. Centrifugal mixers, washers, etc. (10279.
10280)

Arthur, J. Pneumatic percussive hammers, etc. (10251)
Automatic Telephone Manufacturing Company. Electric
signalling systems for use in mines, etc. (10306)

Barbet et Fils et Cie, E. Process for dissociation of heavy
oils for production of light spirits. (9961)

Bibby, J. Electric transformer arrangements for pro-
ducing two-phase current from three-phase supply, or
vice versa. (10075)

Boldoroni, A. Electric steam generators. (10131)

Booth, H. S. Rotary engines. (10156)

Brember, R. Self-driving motor. (10042)

British Thomson-Houston Company (General Electric
Company). Electric motor control systems. (10120)

British Thomson Houston Company (General Electric
Company). Systems of electric power transmission.
(10256) "

British Westinghouse Electric and Manufacturing Com-
pany. Fluid pressure turbines. (10225)

Child, S. Pumps. (9951)

Colombo, R., and Fernandez, M. F. Hearths or fire boxes.
(9948)

Considere, E. A. Safety automatic devices for cages and
shafts for coal pits, mines, etc. (10090)

Davies, W. R. Pickling iron and steel plates or sheets.
(10155)

Donaldson, J. Appliance for handling bulk cargo in ships’
holds, etc. (10030)

Electrical Improvements Limited. Electric transformers.

(10212)

(Evans, O. B.) Process of burning solid fuel. (10206)
Field, A. B. Dynamo electric machines. (10126)

Fowell and Co. Generators for mixed steam and products
of combustion. (10272)

Goodhead, B. Internal combustion engines. (10264)

Guy, H. L. Fluid pressure turbines. (10225)

Holmes, D. M. Treatment of liquor from plants for puri-
fying gases from producers, etc. (10208)

(Industrial Electric Furnace Company.) Electric furnaces.
(10183)

Key, T. H. R. Internal combustion engines. (10077)
Kuroishi, I. Changeable centrifugal pumps. (9966)
Lewis, J. E. Fire lighters. (9910)

McKechnie, Sir J. Internal combustion engines. (10257)
Madjaraglou, P. Railway couplings, etc. (10002)
Pohlmann, A. Manufacture of picric acid. (10027)
Provay, G. A. P. Rotary engines and pumps. (9940)
Rare Metals Limited. Internal combustion engines.

(10267)

Redrup, C. B. Internal combustion, etc., engines. (10113)
Reid, W. J. Tar still. _ (10260)

Remington, C. Electric signalling systems for use in
mines, etc. (10306)

Renouf. F. E. Air compressors. (10198)

Revel, F. Electric steam generators. (10131)

Robson, J. Internal combustion engines. (10132)
Rosborg, A. H. Furnaces. (9953)

Small, C. W. Internal combustion engines. (10264)

Smith, W. S. Pumps. (9951)

Stigant, S. A. Electric transformers. (10212)

Stone, T. Internal combustion engines. (10170)

Strache, H. Gasification of carboniferous substances.

(10352)

Tangyes Limited. Internal combustion engines. (10132)
Thomas, H. S. Pickling iron and steel plates or sheets.

(10155)

Underwood, J. T. Generators for mixed steam and
products of combustion. (10272)

Urtubey, A. O. L. Process for generating power. (9983)
Vickers Limited. Dynamo electric machines. (10126)
Vickers Limited. Internal combustion engines. (10257)
Watkinson, W. H. Internal combustion engines. (10315)
Wyld, W. Apparatus for distillation of treatment of
ammoniacal liquors, etc. (10162)

Zwillinger, B. Converting beehive coke ovens into by-
product ovens. (9977 j

Complete Specifications Accepted.

(To he published on July 11.)

[Note.—The number following the application is that
which the specification will finally bear.]

1917.

6779. Boyd, D. Signalling apparatus for use in mines.
(116518)

7414. Kearton, C., and Hann, E. L. Mine shaft, well,
tunnel, or like linings. (116523)

8432. Bertelli, D. C. A. Internal combustion rotary
engine. (116536)

8595. Hoyle, J. K. Aerial ropeways. (116545)

8773. Guy. S. S. Internal combustion engines. (116552)
8933. British Thomson-Houston Company and Pollock,

A. A. Dynamo electric machines. (116556)
8945. Shaw, J. G., Shaw, C. R., and Sharp, H. G.

Rotary transformers or converters. (116557)
9188. Drakes Limited and Drake, J. W. Apparatus for
removing coke discharged from retorts or
furnaces. (116567)

9350. Burleigh, J. W.	Dynamo electric machines.

(116571)

9675. Vickers Limited and Brown, H. F. Dynamo electric
machines. (116577)

9682. Watson, T. D. Warning signal apparatus for use
in connection with winding, haulage, and other
machinery in which movement is to be reversed
or stopped at regular intervals. (116578)

10059. Smith, H. E., and Perry and Company. Twin
generator gas plants for the manufacture of
water gas containing varying proportions of the
component gases. (116582)

10145. Broadley, J. R. Machines for grinding ores,
minerals, stones and the like. (116583)

11255. Burnard, S. L. Rotary internal combustion
engines. (116601)

11858. Centrum Syndicate and Tacchi, P. G. Internal
combustion engines. (116608)

15254. Keith, J., and Keith, G. Crucible furnaces.
(116636)

16556. McBride, H. F. Self-acting motor. (116641)

16990. Usines G. Derihon Soc. Anon., and Derihon, E.
Internal combustion engines. (116644)

17277. Macropoulos, A. D. (Macropoulos, C. D.). Rotary
rectifier of alternating current. (116647)

17441. Vassiliadi, H. Mechanical underfeed stokers.
(116647)

18317. Butterley Company and Bircumshaw, J. Pit props.
(116653)

19003. Rayner, G. H. T., and Rayner, P. Valve apparatus
for rock drills and the like fluid-pressure-
operated tools. (116,660)

1918.

747. Bagley, C. H. F. Process and apparatus for re-
moving molten slag from open hearth steel
furnaces by means of air or steam blast.
(116663)

2956. Gill, H. A. (American Steam Conveyor Corpora-
tion). Ash conveyor systems. (116675)

3447. La Devesa, R. R. R. de. Compounds for increasing
the calorific value of coal and like fuel. (116676)

4924. Rees, E. V. Tool bars for miners ’and other tools.
(116679)

4994. Simon-Carves Limited and Hunter, S. Storage
bunkers and compressing apparatus used in con-
nection with coke ovens. (116680)

Complete Specification open to Public Inspection before
Acceptance.

[Note.—The number following the application is that
which the specification will finally bear.]

1918.

3137. Veigel, A. Tachometers. (116689)

8962. Roullie, J. E., and Roullie, A. E. Hydro-carbon
vapour generators. (116708)

9509. Aktiebolaget Ingeniorsfirma F. Egnell. Gas
analysing apparatus. (116715)

9750. British Westinghouse Electric and Manufacturing
Company. Electric motor control systems.
(116724)

Licences Granted by the Board of Trade.

The Board of Trade have granted licences to Messrs.
Simon-Carves Limited to work the Koppers patents Nos.
20870/04 and 16386/05.

Restoration of Lapsed Patent.

An Order has been made restoring the Letters Patent
No. 15593 of 1909, granted to James Todd for “ Improved
fastenings for smoke box doors of tubular boilers or the
like.”

Coal and Shale Production in New South Wales.—
The output , of coal for 1916 was 8,127,161 tons, valued
at £3,336,419, whilst that for 1917 amounted to 6,292,867
tons, valued at £4,422,740, being an increase of 165,706
tons, and of £1,086,821 in value. The quantity of shale
raised during 1917 totalled 31,661 tons, valued at £30,565,
as against 17,425 tons, valued at £17,777 in 1916. Con-
siderable quantities of shale are regularly shipped each
month to the United States

--SIZES-----

TO CARRY

3 and S TONS.

With or Without

Tipping Bodies.

/

MANN’S

STEAM CART &

WAGON Co. Ltd.,

Hunslef,

LEEDS.

London Office :

9, Fenchurch Avenue, E.C.

First-class

Medals—
Paris, 1885 ;
London, 1862.



“SHELTON” IRON.

SHELTON” STEEL*—.)

Gold Medals—
Paris, 1878;
Melbourne,
1881.

“GRANVILLE” PIG IRON (=.“)

STEEL PIT GIROERS & COLLIERY RAILS a Speciality; also High-class RAR IRON for Couplings, Sc.

IRON & STEEL BARS, ANGLES, TEES, CHANNELS, GIRDERS,

PLATES & SHEETS, STEEL BILLETS, BLOOMS & SLABS.

/inquiries to—	——— --------------------

THE SHELTON IRON, STEEL'S COAL CO. LTD.,

Or 122, Cannon Street, London, E.C. 4

Telegraphic AddressShelton, Stoke-on-Trent.” Tel. Nos. 11 and 253. | Telegraphic Address: “ Sheltonian, London.” Tel. No. 886 Bank.

THE

KOPPERS’ PATENT

BYE-PRODUCT COKE OVENS

AND

NEW SYSTEM OF RECOVERING THE
BYE-PRODUCTS

GIVE RESULTS WHICH HAVE NEVER BEEN
EQUALLED BY ANY OTHER SYSTEM.

See large advertisement appearing in alternate
issues of this Journal.

All communications to be addressed to—

THE KOPPERS’ COKE OVEN & BY-PRODUCT CO.,
301, Glossop Road, Sheffield.

Tel. No. 1935.	Tel. Address—“ Kochs, Sheffield.”