February 13, 1914.

THE COLLIERY GUARDIAN,

371

CONTRACTS OPEN FOR COAL AND COKE.

For Contracts Advertised in this issue received too late for
inclusion in this column, see Leader and Last White
pages

Abstracts of Contracts Open.

Bournemouth, February 18—Coal for the Corporation.
Forms from the borough surveyor, Mr. F. W. Lacey.

Bournemouth, February 19.—Welsh smokeless coal
(washed peas), household coal, and gas coke to the Tram-
ways Department, for the Corporation. Forms from the
general manager (Mr. I. Bulfin) on deposit of £1 Is. (return-
able).

Bradford, February 17.—Engine coal for the Corpora-
tion. Forms from the Town Clerk.

Carlisle, February 20.—Coal, for the Watch Committee
of the Corporation. Particulars obtainable at the Police
Office, West Walls.

Darlington, February 18.—About 10,000 tons of small,
rough small, or single nut steam coal, for the Corporation
(Electricity Committee). Forms from the borough elec-
trical engineer, electricity works, Haughton-road.

Hols worthy, February 17.—About 40 tons of Cocks-
head coal, for the Guardians. Tenders to Mr. Claude
Kinsman, clerk, Union Offices, Holsworthy.

Leeds, February 21.—Steam coal (small slack, smudge,
or similar material) required for the electric ^ghting
department, for the Corporation. Forms from Mr.
C. Nelson Hefford, manager, electric lighting department,
1, Whitehall-road, Leeds.

Leith, February 16.—About 3,000 tons washed singles
or washed dross, and 11,000 tons washed singles or washed
dross, for the Corporation. Forms from the Burgh
Electrical Engineer, Great Junction-street, Leith.

London, February 26.—About 15,000 tons of coal,
suitable for burning with chain-grate stokers, for the
Hackney Borough Council. Forms from Mr. N. Scorgie,
deputy town clerk, Town Hall, Mare-street, Hackney, N.E.,
on payment of .£1 (returnable).

Peterborough, February 19.—About 1,000 tons of
small nuts, for the Electricity Committee of the Corpora-
tion. Forms from Mr. John C. Gill, city electrical engineer,
Municipal Offices, Peterborough.

Redditch, February 24.—About 6,000 tons beans suit-
able for Babcock’s chain grate stokers, for the Urban District
Council. Forms from the engineer, Electricity Offices,
Summer-street, Bedditch.

Stockholm (Sweden), February 21. — Tenders are
invited by the Swedish State Railways for the supply of
627,300 tons of coal and 9,100 tons of coke.*

Weymouth, February 21.—Steam coal for the electricity
works, for the Corporation. Forms from Mr. J. H. Bolam,
M.So., borough electrical engineer, Stavordale-road, Wey-
mouth.

The date given is the latest upon which tenders can be received.

CONTRACTS OPEN FOR ENGINEERING, IRON
AND STEEL WORK, &c.

Auckland (New Zealand), March 26.—Hydro-electric
Power Plant.—For the directors of the Dominion Portland
Cement Company Limited, New Zealand (Wairua Falls) :—
Hydraulic equipment (including turbines, 1,500-horse power
each, governors, penstocks, valves, &c.) ; generators,
1,000 kw. each, exciters, automatic regulators, &c. Specifi-
cations from Messrs. Walker, MacEwen and Co. Limited,
7, Princes-street, Westminster, S.W., on payment of «£2 2s.
(returnable).

Bishop’s Stortford, February 24.—Gas Engine, <fyc.—
For the Urban District Council: Supplying and erecting a
44 b.h.p. gas engine and suction gas plant, and making
certain alterations and repairs to the existing pumping
machinery; and erecting an engine-house, and making
certain alterations to the existing buildings. Specification
from the engineer, Mr. Robert S. Scott, Council Offices,
Bishop’s Stortford.

Bradford, February 19.—Cooling Towers.—Natural
draught chimney type cooling towers, and induced draught
plant, for the Corporation. Specifications, from Mr.
Thomas Roles, city electrical engineer and manager, Elec-
tricity Offices, Town Hall, Bradford, on {payment of £1 Is.
(returnable).

Burnham - on - Crouch, February 16. — Service and
Pumping Main.—For the laying of 726 yards of 4 in. and
1,750 yards of 3 in. diameter cast iron service and pumping
main, with hydrants and sluice valves; also pump connec-
tion at the existing waterworks pumping station, Burnham-
on-Crouch, for the Urban District Council. Specification
from Mr. J. Cook, the surveyor to the Council.

Clonmel (Ireland), February 25.—Retorts and Settings.
—Four settings of seven retorts each, on foundations to be
provided at the gasworks in Clonmel, for the Corporation
Gas Committee. Specifications from the engineer, Mr.
Henry O’Connor, Assoc.M.Inst.C.E., 1, Drummond-place,
Edinburgh, on payment of .£1 Is. (returnable).

Darlington, February 20.—Cast-iron Tar Tank, fyc.—
Cast-iron tar and liquor tank (50 ft. diameter, &c., at
the gasworks, for the Corporation. Specification from Mr.
Frank P. Tarratt, gasworks engineer, at the gasworks, on
payment of the sum of £2 2?. (returnable).

Dublin, February 23.—Steelwork.—Steelwork, for the
directors of the Great Northern Railway Company (Ireland),
for the reconstruction of bridges. Specification from the
secretary, Amiens-street Terminus, Dublin, on payment of
.£1 Is. (returnable).

Grimethorpe (Yorks), March 3.—Condensers.—Two
condensers, each consisting of 42 lines of 18 in. diameter
pipes, with bottom boxes and supporting girders, all made
of cast iron, for the Grimethorpe station, for the directors
of the Sheffield United Gaslight Company. Specifications
from the engineer, Mr. J. W. Morrison, at the company’s
office, Commercial-street.

Ipswich, February 25.—Lancashire Boiler.—A Lanca-
shire-type boiler, for the Guardians. Tenders to Mr. L. W.

* Specifications, particulars, &c., may be seen at the
Commercial Intelligence Branch of the Board of Trade,
73, Basinghall-street, E.C.

Greenhalgh, clerk to the Guardians, Guardians’ Offices, 19,
Tower-street, Ipswich.

Keighley, April 11.—Reservoir, fyc.—Construction of a
storage reservoir, for the Corporation. Specification from
the engineer, Mr. H. Ratcliffe Barnett, at the Town Hall,
Keighley.

Linlithgow, February 16-27.—Reservoir.—Constructing
a reservoir at Beecraigs, along with sand filters, clear water
tank, pipe tracks and other accompanying works, for the
Linlithgow District Committee of the County Council of
the County of Linlithgow. Specification from Messrs. J.
and A. Leslie and Reid, C E., 72a, George-street, Edinburgh,
on payment of .£1 (returnable).

London, February 25.—Cooling Towers, [tyc.—Natural-
draught cooling tower and pipework, for the Lighting
Committee of the Islington Borough Council. Specification
from the Electrical Engineer, 50, Eden-grove, Holloway,
London, N.

London, March 3.— Gas Engines.—Two main driving gas
engines of the enclosed vertical type, each having three
inverted single-acting cylinder over three cranks ; also of
two gas-driven air-compressors, and certain pipes, valves,
meters, tanks and accessories, for the London County
Council. Specifications from the chief engineer of the
Council, Mr. G. W. Humphreys, at the County Hall, Spring
Gardens, S.W., upon payment to the cashier of the Council
of the sum of £2 (returnable).

Melbourne (Australia), March 17.—Engine and
Dynamo.—Portable direct-coupled internal combustion
engine and dynamo.*

Merthyr Tydvil, February 16.— Water Main.—For
laying a 10 in. water main (cast iron and steel), of about
8,700 yards length, for the Corporation. Specification
from the waterworks engineer, 101, High-street, Merthyr
Tydfil, upon payment of a sum of £2 2s. (returnable).

Nelson, February 17.—Sulphate of Ammonia Plant.—
A complete sulphate of ammonia plant, for the Corporation
(gas department). Specification from A. Morton Fyffe,
engineer and manager, Gas Offices, Nelson, on payment of
a deposit of £2 2s. (returnable).

North Wootton, February 24.—Water Mains.—About
2| miles of 3-in. and 2| miles of 2-in. water mains, with the
necessary valves and sundry fittings, and for the construc-
tion of a circular concrete service reservoir, to contain
30,000 gallons, for the Wells Rural District Council.
Specifications obtained, on payment of £2 2s. (returnable),
from Mr. Alfred Geo. Russ, clerk, Poor Law Offices, High-
street, Wells.

Nuneaton, February 21.—Electrical Plant.—For the
Corporation:—One 600 kw. high-pressure, geared, direct-
current turbo-generator, complete with fittings and acces-
sories ; surface condensing plant suitable for the above;
pipework, valves and accessories in connection with the
above plant. Specification obtained on payment of deposit
of £1 Is. (returnable) from Mr. S. Cameron Gibson,
A.M.I.E., borough electrical engineer, Electricity Works,
Nuneaton.

Port Said, March 5.—Plant.—Tenders are invited by
the Egyptian Ministry of Public Works on behalf of the
Municipality of Port Said for the supply and erection of
air-compressing plant required for the air-compressing
station of the Main Drainage Department. Particulars
from Controller - General, Main Drainage Department,
Ministry of Public Works, Cairo.

Pretoria (South Africa), March 2. — Structural
Steelwork.—Tenders are invited by the South African
Railways Administration for the supply and delivery of
structural steelwork, &c.*

Rhyl, February 25.—Gas Meter, fyc.—New gas station
meter and water-tube condenser, at the gasworks, for the
Urban District Council (gas department). Specifications
from Mr. Leonard G. Hall, gas engineer, Paradise-street,
Rhy], on receipt of £2 2s. (returnable).

Salt River (Cape Colony), February 23.— Structural
Steelwork.—Tenders are invited by the South African
Railways Administration for the supply of structural steel-
work, glazing, corrugated iron sheets, for a power house
to be erected at Salt River, Cape Colony.*

Southend-on-Sea. — Coal Trucks. — Three electrically-
operated coal trucks, for the Corporation. Further
particulars obtainable from Mr. Robert Birkett, borough
electrical engineer and general manager, London-road,
Southend-on-Sea. «■

Westonzoyland (Somerset), February 17.—Boiler.—
A steel Lancashire boiler, 22 ft. long by 6 ft. 8 in. in
diameter, for the Othery, Middlezoy, and Westonzoyland
Drainage Board. Specifications from Mr. W. Lunn, 65,
Wembdon-road, Bridgwater, on payment of £2 2s.
(returnable).

Wolverhampton, February 16.—Coal Bunkers.—Steel
framework for coal bunkers, for the Corporation. Specifi-
cation, on payment of .£1 Is. (returnable), from Mr. S. T.
Allen, chief engineer and general manager.

Wombwell, February 20.—Shaft Sinking.—For the
sinking of a 21 ft. finished diameter shaft at or near the
Darfield Main Colliery, Womb well, for the Mitchell Main
Colliery Company Limited. Specification and form of
tender can be inspected at 25, Regent-street, Barnsley.

* Specifications, particulars, &c., may be seen at the
Commercial Intelligence Branch of the Board of Trade,
73, Basinghall-street, E.C.

Hull Coal Exports.—The official return of the exports of
coal from Hull for the week ending Tuesday, February 3,
1914, is as follows :— Amsterdam, 208 tons ; Antwerp, 2,142 ;
Aalesund, 514; Ancona, 2,923 ; Ahus, 1,865; Barcelona, 1,517;
Bordeaux, 1,978; Bruges, 2,116; Buenos Ayres, 9,629;
Bergen, 1,649; Bremen, 1,686; Christiania, 3,738; Copen-
hagen, 375 ; Drontheim, 227 ; Dunkirk, 2,976; Gothenburg,
447 ; Ghent, 453 ; Harburg, 2,393; Hamburg, 7,115 ; Libau,
408; Norrkoping, 2,161; Novorossisk, 431; Oxelosund, 421;
Rotterdam, 96; Rouen, 8,427 ; Rostock, 919 ; Reval, 4,427;
St. Servan, 1,199; St. Peters, 700; Stockholm, 1,508;
Trieste, 261; Windau, 197; total, 65,108 tons. Corre-
sponding period February, 1913, total, 51,671 tons.

ABSTRACTS OF PATENT SPECIFICATIONS
RECENTLY ACCEPTED.

1609 (1913). Improvements in Hammer-drills. J. M.
Holman and J. L. Holman, both of Camborne, Cornwall.—
Relates to hammer-drills of the type wherein the working
cylinder is provided with an extension which operates as a
piston sliding within a fixed cylinder through the medium
of which the drill is supported, and which cylinder is pro-
vided with means whereby air can be introduced into it for
the purpose of pressing the said extension or feed piston,
and consequently also the working cylinder carrying the
drill or borer forwards as the work proceeds, the said feed
piston having formed in it a passage through which a
portion of the air introduced into the feed cylinder can flow
down into the working cylinder for operating the hammer





TyjJ.

piston in a well-known manner. The object is to simplify
the means for effecting the twisting of the working
cylinder, and to this end the invention consists in arranging
in the end of the feed cylinder a bar of polygonal or other
shspe, which extends through a correspondingly-shaped
hole in the end of the feed piston, and which bar has
applied to its outer end which projects through the end of
the feed cylinder, worm or other gearing driven through a
flexible shaft or other power transmitter by an electric
or other motor. Fig. 1 is a sectional side view of a hammer-
drill, the feed of the drill proper of which is effected by air-
pressure, provided with the improvements. Fig. 2 is an
end view thereof. (Two claims.)

1610 (1913). Improvements in Rock Drills. J. M. Holman
and J. L. Holman, Camborne, Cornwall.—Relates to rock
drills wherein provision is made for conveying water into
the borehole through the boring bit or steel and to that
type of such drill wherein the twist bar is made tubular to
form part of the passage through which the water passes,
and also acts as a pump plunger to force the water through
the boring bit, the object being to provide for supplying
the water at such pressure that, in cases where it is liable
to come into contact with the compressed air, such air will
not prevent the water from entering the machine or device.
According to the invention a tubular passage is made in a
twist bar held against longitudinal movement and fitting
in a recess or chamber in the piston in a well-known manner,
and the front end of the twist bar provided with packing,
so that the said twist bar will act as a plunger, a ball or
other valve being fitted in the end of the passage in the
twist bar in such a manner that during the forward stroke
of the piston carrying the drill the chamber in which the

?<cPo'



twist bar works will be filled with water, and that on the
return stroke of the piston the valve will prevent the return
of the water, whereby the water in the said chamber will
be forced through the boring tool into the borehole, the
valve in the twist bar preventing the possibility of the
compressed air, should there be any leak around the twist
bar, from passing back against the water pressure. It is
proposed to use a drill shank having a lateral hole
communicating with the passage in the hollow drill some
distance from the end, instead of having a central hole at
the end of the drill corresponding with a central hole in the
piston rod, this lateral hole coinciding with a hole in the
chuck bushing to which the water flows from the piston
the joint between the drill tool and the bushing is a ring or
washer of indiarubber, which is expanded by the pressure
within it. Fig. 1 is a longitudinal section of a drill having
the present improvements applied to it, and fig. 2 is a
sectional end view of the same, the section being taken on
the line 2—2, fig. 1. Fig. 3 is a section on the line 3—3,
fig. 1, and fig. 4 is a plan of the tool holder or chuck with
certain parts removed. (Three claims.)

3672 (1913). Process and Apparatus for the Gasification
of Fuels containing Volatile Constituents. F. C. W. Timm, of
86, Wandsbecker Chaussee, Hamburg 23, Germany.—Relates
to a process and apparatus for gasifying fuels, especially
those of fragmentary to powdery consistency, having a large
proportion of volatile constituents, which, as is well known,
cause various difficulties when being gasified in the usual
gas-producers. In this class may be included, for example,
slack coal, coaldust, slime deposits of collieries, sawdust,
peatdust and the like. The process consists in gasifying
or volatilising the fuel in a suitably intermittently-worked
receptacle by air travelling in a downward direction, the
successively resulting gases being conducted away separately.
Gasification and volatilisation commence at the burning
upper surface and proceed downwards; but their different
speeds of progression are utilised for separating the gases
which are rich in volatile constituents from the poorer ones,
by conducting away the gases rich in volatile constituents
which are given off first for a certain period separately from
the gases practically free from the same which are given off
afterwards. The gases of the first period may with
advantage be treated for the recovery of ammonia and any
other by-products, it being possible, if necessary, to under-
take a subdivision in their case, also by conducting them
away at consecutive intervals of time. First, the downwardly