476

THE COLLIERY GUARDIAN.

March 10, 1916.

of the valves of direct-acting pumps (at point of admission
and exhaust of fluid pressure) by means of a spring brought;
into action by certain rocking levers, which are also partly
actuated by other mechanical means. The drawing is a front,
elevation of the cylinders of a direct-acting pump, showing
valve gear in position, when right and left hand crossheads
G are at top and bottom of their respective strokes. The
double lever A, to which are attached the sliding blocks E,
works on the centre shaft D, as do also the levers B—B2 and
the canting piece B1, which are all made in one piece and
work together. The spring S, which is attached at its lower
end to lever B, and at top to pin P, is used for completing the
movement to right or left, after the gear has been moved
into position, as shown in the figure. P is adjustable, in
order that the compression of the spring S may be set to
get the necessary force for moving the said parts. The
spindles C, through action of the stop collars E coming in



S

-B2

—'E

contact with the extended arms of the crossheads G-, com-
municate a certain amount of movement to the ends of levers
B2, in order to turn the parts B, B1, and B2 into position,
as shown, either to right or left as required. The crossheads
arms G only engage the stop collars F at the tops of their
strokes. The right hand crosshead G- is shown at top of
its stroke, and the left hand one at the bottom. On right
hand crosshead arm G, moving right hand spindle C up to
the position given, the right hand end of lever B2 is, raised,
and left hand end of same is’depressed, the canting piece B1 is
touching the left side of lever A, the lever B is lying at a
certain angle, as shown, also the spring S. On this point
being reached, the force of the compressed spring S sets up a
turning movement about the centre of shaft D, and reverses
the position of the piston valves V, lever A, and at the same
time the right hand end of lever B2 rises clear of head of
spindle 0, and left hand end of B2 forces down the head of
left hand spindle 0 to its new position, and leaves it ready to
engage the left hand crosshead arm G on its upcoming
stroke. (One claim.)

9764 (1915). Improvements in Foundations for Coke
Ovens. A. Roberts, 608, South Dearborn-street, Chicago,
County of Cook, Illinois, U.S.A.—Has reference in particular
to the construction of foundations and the arrangement of
the flues for leading off the spent gases. The main object
is so to arrange the flues and passages that the spent gases
will be collected uniformly from the entire lower portion of
each heating wall, and will be .delivered from an entire
bench of ovens uniformly to the exhausting fans, stack, or
other disposal connection. Another feature has reference to
a construction of the foundations such that they may be
built up from standardised forms of block with a minimum
amount of labour, and with a minimum wastage of blocks in

*

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the construction. In accordance with one feature a founda-
tion is provided having underneath each heating wall a spent
gas passage which communicates by transverse passages
with a sole passage under the sole of each oven, the said
sole passage communicating with spent gas tunnels at the
sides of the foundation by means of connections which
include a tunnel and vertical passages. A further feature
consists in the formation of the sole passage and transverse
passages, located beneath each oven, by means of blocks each
having a longitudinal and a transverse passage. Not only
do these blocks with their passages provide communication
for the gases, but they also perform the function of sustain-
ing the load of the carbonising chamber, and in addition
the inner sides of the heating walls. Fig. 1 shows a vertical
longitudinal section through the central portion of an oven
and foundation embodying the features of the invention;
fig. 2 shows an enlarged detail section of the lower portion of
the construction shown in fig. 1, said section being taken-on

the line 2—2 of fig. 1 looking in the direction of the arrows,
the central oven being shown in section and the adjoining
ovens in elevation; fig. 3 shows an enlarged plan detail of
one of the sole blocks; fig. 4 shows a side elevation of the
block shown in fig. 3. (Three claims.')

NEW PATENTS CONNECTED WITH THE
COAL AND IRON TRADES.

Applications for Patents.

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

Anderberg, A. (3239). Combined feed water heater and
wrater cooled spark arrester for locomotives, etc.

Andersen, W. (3280). Steam generators.

Bennis, A. W. (3210). Process for pneumatic conveying or
transporting of material, and apparatus therefor.

Bradley, A. (3056). Manufacture of trinitrotoluol.

Braid, H. R. (3157). Recovery of metals from their orcs.

British Thomson-Houston Company and Halliwell, R. F.

(2959)., Feed pump pressure regulators.

British Thomson-Houston Company (3036). Polyphase alter-
nating electric current commutator machines.

British Thomson-Houston Company (3169). Apparatus for
heating air or gases.

Brookes, N. E. (Goodwin') (3219). Packing rings for
pistons, etc.

Burnett, C. (3201). Extracting water, etc., from coal, etc.
Butcher and Sons, W. (3118). Mechanism for linear trans-
mission of power.

Chambers, FI. (3082). Jigs.

Ford, E. A. (3224). Power transmitters.

Gresham, H. E. (3297). Production and discharge of dele-
terious, etc., gases.

Hutsel, R. (3277). Non-conducting jackets for boilers.

Joseph, F. A. (3252). Drills.

Keith, G. and J. (3181). Apparatus for controlling mixture
supplied to gas fired furnaces.

Koppers Company, H. (2980).. Apparatus for recovering
hydrocarbons from absorbing oils.

Neil, J. (3266). Signalling appliances for collieries, etc.

Roberts, H. (2923). Drills.

Walker, J. H. (3032). Lifting or hauling gear.

Wood, T. (3300). Steam superheaters.

Complete Specifications Accepted.

(To be published on March 23.)

1915.

3250. Couplings for shafts and the like for well sinking,
boring, and analogous operations. Perkins, and
Perkins Macintosh Petroleum Tool and Boring
Company.

3393. Mine shaft signalling apparatus. Scott and
Wheatley.

3677. By-product recovery from gas producers and the like.
Testrup, Rigby, and Wetcarbonizing Limited.

5386. Water tube generators. Canhac.

5588. Gas engine. Dehn (Simpson and Simpson).

5984. Utilisation of combustible gaseous mixtures,
lonides.

6170. Water gauges, test cocks, and other cocks or valves
for use in conjunction with steam boilers and
other fluid pressure vessels. Robinson.

6986. Hydraulic appliances for breaking down material in
mines. Sickman and Byers.

7891. Benzol gas producing plant. Perrier.

8325. Centrifugal separators. Watson.

9038. Portable shields for the protection of miners while
timbering and making secure the working places
in mines. Douglas.

11059. Bottles for compressed gases. Scottish Tube Com-
pany, and Thomson.

14720. Centrifugal machines. Lobeck.

15585. Gas producers. Johnson (Wood).

1916.

[Note.—The numbers in heavy type are those under which
the specification will be printed and abridged, and all subse-
quent proceedings will be taken.]

126. Automatic roller-bearing safety pitman. Gardner,
J. P., and Clark, J.	100116

CATALOGUES AND PRICE LISTS RECEIVED.

The Chicago Pneumatic Tool Company (of Fisher-building,
Chicago) have forwarded copy of their catalogue of the
Duntley universal electric hammer drill. The motor operates
on direct or alternating current (110 or 220 volts as
required), and the hammer blow is produced by pneumatic
impact transmitted through a free piston without shock. A
special live air device is provided to clear the hole of cuttings
when drilling in a downward direction, hollow drills being
supplied for this purpose.

Messrs. Mather and Platt Limited, of Park Works,
Manchester, have forwarded their catalogue of appliances
for fighting fires on ships, and prepared to assist the ship
owner to comply with the Board of Trade notice of October
last. The “ Underwriter ” pumps have a capacity of 246 to
500 gals, per minute, and the No. 2 turbine pump (two-
chamber type) is recommended for similar work. The
catalogue also deals with hand pumps, landing valves,
instantaneous connectors, hose racks and boards, the Simonis
■ smoke helmet, Simplex extincteur, fire buckets, and sprinklers
for automatic fire extinction on shipboard.

The annual general meeting of the Institute of Metals
will be held in the rooms of the Chemical Society,
Burlington House, Piccadilly, W., on Wednesday, March 29,
1916. The following are amongst the papers to be read
“ Third Report to the Corrosion Committee,” by W. E.
Gibbs, M.Sc., R. H. Smith, and G. D. Bengough, D.Sc.,
M.A. ; “ The Electrolytic Method of Preventing Corrosion,”
by Elliott Cumberland; “Note on Some Tin-Aluminium-
Copper Alloys,” by Prof. A. A. Read, D.Met., and R. H.
Greaves, M.Sc. ; “ Notes on the Analysis of Aluminium and
its Alloys,” by W. H. Withey, B.A.; “ Electric Furnaces
as Applied to Non-ferrous Metallurgy,” by Prof. A.
Stansfield, D.Sc., A.R.S.M. Owing to the war, the council
have decided not to arrange the usual dinner in connection
with the annual general meeting.

GOVERNMENT PUBLICATIONS.

K*Any of the following publications may be obtained
on application at this office at the price named post free.

Civil Service Estimates, 1916-17, Class 9 : Ministry of
Munitions (Ordnance Factories), Id.

Income-Tax Cases, Vol. 6, Part 9, 8d. ; ditto, Index, 6Jd.

. List of Authorised Explosives, 21d.

Trade and Consular Reports, 1914 : Report of Mauritius,
4d. ; China, Trade of Pakhoi, 2d. ; Greece, Trade of Patras,
2d.

Statutory Rules and Orders, 1916 : No. 72, EXPLOSIVES
IN COAL MINES ORDER, l|d. ; No. 77, Customs, Pro-
hibition of Import Proclamation, 1^-d.; No. 93, Defence of
the Realm, re British Steamships Exceeding 500 tons, l^d. ;
No. 125, Trading with the Enemy, Neutral Countries, 1-R1. ;
No. 126, ditto, Extension of Powers, ljd.

PUBLICATIONS RECEIVED.

The Metallurgy of Iron. By Thomas Turner. London :
Charles Griffin and Company Limited. Price 16s. net.

Butterworths’ Workmen’s Compensation Cases. Vol. 8.
Edited by His Honour Judge Ruegg and D. Knocker.
London : Butterworth and Company. Price 12s. 6d. net.

The Mesozoic and Cenozoic Echinodermata of the United
States (Vol. 54, Monographs of the United States
Geological Survey). By W. B. Clark and M. W.
Twitchell. Washington : Government Printing Office.

Employers and Workmen under the Munitions of War
Act. By T. A. Fyfe. Edinburgh : Wm. Hodge and
Company. Price 2s. 6d. net.

Pratt and Redman’s Income-Tax Law. By the late J. T.
Pratt and J. H. Redman. London : Butterworth and
Company. Price 9s. 6d. net.

“ The American Mining Congress Journal ” (Vol. 2, No. 2),
February; “The Journal of the Chemical, Metallurgical,
and Mining Society of South Africa ” (Vol. 16, No. 6),
January; “ The Journal of the South African Institution of
Engineers ” (Vol. 14, No. 7), February, price 2s. ;
“ Statistical Report of the Department of Mines and
Industries, Union of South Africa, for December 1915 ”;
“ The Journal of the Royal Statistical Society ” (Vol. 79,
Part 1), January, price 5s.; “ Gassier’s Engineering
Monthly” (Vol. 49, No. 3), March, price Is.; “The
I. C. S. Student ” (Vol. 8, No. 3), March; “ Transactions
of the Manchester Geological and Mining Society,
1915-16 ” (Vol. 34, Part 7); “ The Geological Magazine ”
(Vol. 3, No. 3), March, price 3s. net; “The Fractional
Precipitation of Some Ore-Forming Compounds at
Moderate Temperatures,” by R. C. Wells (Bulletin 609,
United States Geological Survey); “Guide Book of the
Western United States, Part A : The Northern Pacific
Route,” by M. R. Campbell and others; “ Part C : The
Santa Fe Route, by N. H. Darton and others; “ Part D :
The Shasta Route and Coast Line,” by J. S. Diller and
others (Bulletins 611, 613, and 614, United States
Geological Survey); “Anticlinal Structure in Parts of
Cotton and Jefferson Counties, Oklahoma,” by C. H.
Wegemann (Bulletin 602, United States Geological
Survey); “Faunas of the Boone Limestone at St. Jone,
Arkansas,” by G. H. Girty (Bulletin 598, United States
Geological Survey); “ Fauna of the So-called Boone Chert,
near Batesville, Arkansas,” by G. H. Girty (Bulletin 595,
United States Geological Survey); “The Fauna of the
Batesville Sandstone of Northern Arkansas,” by G. H.
Girty (Bulletin 593, United States Geological Survey);
“ The Mineral Resources of Alaska, Report on Progress
of Investigations in 1914,” by A. H. Brooks and others
(Bulletin 622, United States Geological Survey); “An
Ancient Volcanic Eruption in the Upper Yukon Basin,”
. by S. R. Capps (Prof. Paper 95D, United States Geological
Survey).

Grimsby Coal Exports.—The following quantities of coal
have been exported from Grimsby during the week ended
March 3:—Foreign: To Aarhus, 544 tons; Dieppe, 205;
Esbjerg, 1,700; Norrkoping, 1,617; and Treport, 624 tons.
Coastwise : To Dagenham, 1,200 tons—total, 4,690 tons
foreign, and 1,200 tons coastwise, against 1,575 tons foreign,
and 1,150 tons coastwise during the corresponding week of
last year.

Hull Coal Exports.—The official return of the exports of
coal from Hull to foreign countries for the week ending
Tuesday, February 29, is as follows :—Boulogne, 1,375 tons;
Dunkirk, 2,284; Gothenburg, 3,004; Harlingen, 829; Havre,
514; Rotterdam, 1,835; Rouen, 15,063—total, 24,904 tons.
Corresponding period last year, total 52,224 tons. These
figures do not include bunker coal, shipments for the British
Admiralty, or the Allies’ Governments.

Coal and Coal Smoke.—In his lecture delivered before the
Monmouthshire Colliery Officials’ Association on 26th ult.,
Mr. E. C. Evans, B.Sc., F.I.C., of the Treforest School of
Mines, dealt with the decomposition of vegetable matter-in
the formation of coal, and exhibited thin sections of various
kinds of coal, to show the varying proportions of resinous
matter, humus and carbon. He then described.the expul-
sion of the volatile coal constituents in coking, and the
extraction of the valuable materials in the smoke produced
by that process of incomplete combustion, as well as the
utilisation of the surplus gas from regenerative coke' ovens,
as a source of gas for domestic consumption (as at Bargoed);
in gas engines, and for steam raising, touching, in this
connection, on the future possibilities of flameless combus-
tion. . The manufacture of nitric acid, as practised in.
Germany, by exploding coal gas in admixture with air, was
also mentioned, though too costly for application in normal
times. The sulphurous acid in coal smoke was referred to
as a possible source of sulphuric acid, for the production of
sulphate of ammonia, etc. The cyanogen in coal smoke is of
value for the recovery of gold by the cyanide process. The
lecturer then spoke of the recovery of benzol and toluol, and
of the value of tar as a road material and as the source of
coal tar dyestuffs and of phenols. In conclusion, he laid
stress on the fact that about 10 per cent, of the coal con-
sumed in this country goes up the chimneys in the form of
smoke, wasting its potential energy, polluting the atmo-
sphere, corroding buildings and dissipating immense
quantities of valuable chemical products; and he urged the
necessity of preventing the continuance of this waste after
the war, and of establishing a central research institution to
deal with the particular problems of each coal field.