570

THE COLLIERY GUARDIAN.

September 22, 1916.

a pug mill or the like, and after being moulded into brick or
other suitable form it is dried preferably in the air, until 50
per cent, to 60 per cent, of the remaining water is driven off.
The operation can be completed or facilitated by passing the
bricks, etc., through any suitable or known form of drier at
a comparatively low temperature. By this driving process
the combined water is freed by the action of the silicate of
soda in the presence of the carbonic acid and the resulting
product when completely dried takes the form of a hard black
mass which is thus obtained without the use of pressure,
thereby dispensing with an expensive step in the manufac-
ture of peat for fuel, and its preparation for retorting. To
economise in the use of the silicate of soda it may be partially
replaced by boring, with or without calcium chloride. For
instance, 1 to 3 grammes of boracic acid are dissolved in
100 cu. cm. of hot water and 1 gramme of calcium chloride is
dissolved in this solution. 4 cu. cm. of this solution are
stirred into 130 cu. cm. of silicate of soda solution of from
52 degs. to 55 degs. Twaddell, and slightly heated; borate
of soda, silicic acid and calcium hydroxide being formed in
the solution of silicate of soda. (Four claims.)

100722. Improvements in Rotary Pneumatic Drills. The
Ingersoll-Rand Company, of 11, Broadway, New York,
U.S.A.—Relates to the form and construction of rotary
pneumatic drills designed to operate in restricted spaces of
the kind wherein a rotary drilling spindle is driven by ratchet
levers actuated by fluid operated reciprocating pistons, and
has for its object the production of a drill of this type in
which the power of a series of reciprocating pistons is
directly transmitted to the drilling spindle by means of
ratchet levers and without the interposition of intermediate
cranks or gearing. Fig. 1 is a side view, partly in section,
on the line I—I of fig. 2, and partly broken away to show
the ratchet levers and niotor mechanism in side elevation;

fig. 2 is a longitudinal horizontal section on the line 2—2 of
fig. 1. The drill comprises an elongated casing 1, at one
extremity of which is a cylindrical spindle sleeve 2, the
ends of which project above and below the casing 1. In this
spindle 2 is rotatably supported the spindle 3, which has
an upper bearing portion 4, a central toothed portion 5, and
a lower bearing portion 6, all of the same outer diameter.
The portion 6 is journalled in a bushing in the lower part of
the sleeve 2, while 4 is journalled in a bushing 7 which has
an upper flange 8 resting on a shoulder in the sleeve 2. The
spindle 3 is provided at its upper end with a flange 9 which
rests on the upper face of the bushing 8, thus preventing
movement of the spindle in a downward direction, while
movement in an upward direction is prevented by a cap 10
threaded into the upper end of the sleeve 2, a ball set 11
being inserted between the flange 9 and the cap 10. In the
cap 10 is secured a telescopic feed screw mechanism 12.
Extending longitudinally of the casing are three ratchet
levers 13, 14, and 15. The spindle ends 16, 17, and 18 of
these levers form circular sleeves or straps which surround

the toothed portion 5 of the spindle, the spindle forming a
bearing or ful-
crum for the
oscillation of the
levers. At the
other end of the
casing are three
cylinders
20, and
whose axes are
set at right
angles to the
length of the
casing and to
the longitudinal
axis of the
spindle. Recip-
rocating in the
cylinders are
pistons 22, 23,
and 24, each of
which consists

19,

21,

of a piston 25

and a connecting rod 26 in the form of a pin rigidly secured
in the inner side of the piston, and having a longitudinal
slot 27 in its outer end into which projects a knob 28 on the
end of the lever, which is actuated by this particular piston,
this knob being free to slide in the slot 27 to allow for the
longitudinal movement due to the oscillation of the levers.
The three cylinders 19, 20, and 21 are not set on the same
line with respect to the spindle, but the inner cylinder 20 is
set nearer the spindle and somewhat between the other two,
so that the cylinders overlap to a certain extent on the line
of the spindle axis, enabling the end of the casing to be
of considerably less height than if the cylinders were all on
the same line. Since by this arrangement of the cylinders
the central lever 14 must be of less length than the upper
and lower levers 13 and 15, and consequently the piston 23
must have a shorter reciprocation in order to oscillate the
lever 14 through the same angular distance as the levers 13
and 15, the cylinder 20 and the piston 23 are of larger area
than the cylinders 19 and 21 and pistons 22 and 24, so that
the piston 23 shall exert the same force on the lever 14 as the
pistons 22 and 24. To limit and equalise the angular move-
ment of the levers 13, 14, and 15 a crank 29 is provided
between the cylinders and the spindle. The casing 1 is split
dia gin ally on the axis of this crank 29, semi-cylindrical
bearing seats 30 being thus provided in each section of the
casing for the ends of the crank 29, in which are placed ball-
bearing sets 31 surrounding the ends of the crank. The
crank 29 has three offset portions 32, 33, and 34, one for each
ratchet lever, set at tangles of 120 degs. from each other,
these offset portions journalling in split bearing boxes 35
sliding longitudinally in slots 36 in the ratchet levers. This
crank mechanism controls and equalises the amount of
angular movement of the levers, causing each one to
oscillate successively through the same angle of rotation with
respect to the spindle. In the levers 13, 14, and 15 con-
tiguous to the spindle 3 are set respectively pawls 37, 38, and
39. These pawls 37, 38, and 39 are so set that each one of
the series from top to bottom will successively engage the
same tooth of the spindle, by having the pawl in each lever
from the top to the bottom successively advanced over the
preceding pawl, with respect to the longitudinal axes of the
levers, an angular amount equal to the angular space
occupied by one spindle tooth divided by the number of
levers. (Three claims.)

Immingham Coal Exports.—During the wreek ended
September 15, the coal exported from Immingham consisted
of 968 tons to Treport. During the corresponding week of
last year no exports of coal were made.

NEW PATENTS CONNECTED WITH THE
COAL AND IRON TRADES.

Applications for Patents.

[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.]

Alexander, R. M. (13108). Two-stroke internal combustion
engines. x	,

(Aurora Automatic Machinery Company) (12982). Connect-
ing rods and associated parts for pneumatic drills, etc.

Barr, G. (13166). Foundry, etc., drying stoves.

Berriman, A. E. (13045). Valve arrangements for cylinders
of internal combustion engines.

Best, W. (13159). Miners’ safety lamps.

Bowling, J. P. (12828). Excavating machines.

Brayshaw, E. R. and S. N. (12941). Furnaces.

Brazil, Straker and Company (13136). Internal combustion
engines.

Brodie, J. A. (12952). Internal combustion engines.

Bullivant, F. A. (13128). Devices for application to ropes.

Burgess, F. T. (12823). Pistons for internal combustion
engines, etc.

Burks, E. G. (12855). Coal washing mechanism.

Butler, L. F. G. (13136). Internal combustion engines.
Cheremisinoff, G. (12864). Pumps for air, gas, or liquid.
Chorlton, A. E. L. (12876). Internal combustion engines.
Croall, R. D. (13191). Hydraulic apparatus for transmis-
sion of power.

Dimitriu, P. (12936). Valveless reciprocating steam engine.
Ellison, H. (12809). Centrifugal or turbine pumps.

Evans, E. V. (13063). Manufacture cff sulphate of ammonia.

Evans, J. L. (12955). Closing end or door for colliery trams
or corves.

Fachini, S. (13072). Combustibles for domestic and indus-
trial use.

Fletcher, C. G. (13156). Furnaces, coke ovens, gas retorts,
etc.

Fry, E. (13191). Hydraulic apparatus for transmission of
power.

Graff, H. v. der Schulenburg’sche Maschinenfabrik (13125).
Removal of refuse from furnace installations, etc.

Griffin, S. (12866). Adjustable boring bit.

Guest, L. G. W. (12994). Distant control of electric cir-
cuits for operating motors, etc.

Haddan, R. (Osborn Foreign Patents Company) (12856).
Internal combustion engines.

Hayes, N. (12855). Coal washing mechanism.

Hetherington, L. E. (13091). Combined interlocking chim-
ney stack and draught-inducing flue.

Hughes, H. R. (13139). Forming and enlarging boreholes.
Keith, G. and J. (13060). Crucible furnaces.

Khan, J. R. (13098). Vaporiser for use of paraffin in internal
combustion engines.

Kilburn, B. E. D. (Sulzer fibres Soc. Anon.) (12837). Dis-
tillation of tar.

Kilburn, B. E. D. (Sulzer fr&res Soc. Anon.) (12978).

Internal combustion engines using heavy oils.

Kilby, J. N. (12868). Casting ingots, etc.

Lemaire, G. (13074). Pumps.

Livens, F. H. (12876). Internal combustion engines.

McLay, J. A. (12809). Centrifugal or turbine pumps.
Megevet, C. J. (13010). Internal combustion engines.
Morris, A. W. (12906). Automatic forging apparatus.
Morris, A. W. (12907). Forged castings, and method of
making same.

Munn, M. J. (12894). Crude oil storage tanks.

(Osborn Foreign Patents Company) (12856). Internal com-
bustion engines.

Parish, C. (12938). Internal combustion engines.

Pattison, W. (12833). Wagon tipping or dumping means.
Picker, L. (13010). Internal combustion engines.

Piesse, F. (13191). Hydraulic apparatus for transmission
of power.

Prockter, F. M. (12902). Gas washing apparatus.

Ross, S. J. (13048). Blow-down or mud discharging arrange-
ments for steam boilers.

Schofield, H. (13048). Blow-down or mud-discharging
arrangements for steam boilers.

Schwabach, G. (13125). Removal of refuse from furnace
installations, etc.

Smulders and Company, L. (13151). Regulators for gas
pumps and compressors, etc.

South Metropolitan Gas Company (13063). Manufacture of
sulphate of ammonia.

South Metropolitan Gas Company, and Palmer W. V.
(13113). Temperature regulators for gas heated indus-
trial appliances.

Southwick, P. (13174). Furnaces.

Strassmann, P. G. (13096). Heating-process for producing
illuminating gas.

(Sulzer freres Soc. Anon.) (12837). Distillation of tar.

(Sulzer freres Soc. Anon.) (12978). Internal combustion
engines using heavy oils.

Thomas, T. (12955). Closing end or door for colliery trams
or corves.

Thuman, F. (13178). Gas producers.

Tittertcn, F. E. (13065). Automatic reversing arrangement
for rotary pumps.

Wada, K. (13164), Indicators for boilers, etc.

Wilkinson, H. O. (13170). Multiple cylinder internal com-
bustion engines.

Willey, S. J. (13039). Multitubular steam generators, etc.

Wray, J. C. (13091). Combined interlocking chimney stack
and draught-inducing flue.

Yates, H. J. (12941). Furnaces.

Complete Specifications Accepted.

(To be published on October 5.)

1915.

12668. Valves for internal combustion engines. Wilson and
Jackson.

12810. Controllers for electric motors. Dey.

12831. Valves and valve-actuating mechanism for internal
combustion engines. Umpleby.

12905. Heat-retaining covers for use on engine cylinder heads
(or tops) and flanges. Brown.

12988. Apparatus suitable for drying, heating, cooling, or
ventilating purposes. Marlow, and Pulsometer
Engineering Company.

12993. Apparatus for determining the “ critical ” or “ con-
version ” point of samples of iron or steel. Simson
(Saldau).

13020. Apparatus for “ scaling ” or cleaning. Liverpool
Patents Company, and Clegg.

13292. Automatic control of processes of gas manufacture.
Simmance.

13481. Electric motors. Heys (Neuland Patents Limited).

13687. Low water safety apparatus for boilers. Chantrill
and Haskins.

14331. Combined apparatus for ventilating, steaming, fire
extinguishing, gas freeing, and sounding of tanks,
etc. Crompton.

1916.

[Note.—The numbers following the application are those
which the application will finally bear.]

1150. Self-correcting gas meters. Marsh, R. G., and
Walter, C. M.	101361

1246. Electric circuit controllers. Igranic Electric Company
(Cutler-Hammer Manufacturing Company).

101362

2313. Rock drilling engines. Nya Aktiebolaget Atlas.

100529

2746. Cylinders for explosion engines. Clench, E. C. S.

101370

3147, 3148. Fluid-pressure engine indicating apparatus and
the like.	101373, 101374

4829. Thrust bearings. Akt.-Ges. Brown, Boveri et Cie.

101380

4931. Internal combustion and other engines. Wery, E.

101382

4933. Internal combustion engines. Weger, C. J. 101383
5163. Electrically indicating the presence of saline, alka-
line, or acid impurities in feed water used for
steam gnerators and for other purposes. Crockatt,
W. C., and Bromell Patents Company. 101387

5391. Continuous current dynamo electric generators.
Allmanna Svenska Elektriska Aktiebolaget.

100394

5992. Internal combustion engines. Bugatti, E. 101390
6345. Air compressors. Black, S. D., and Decker, A. G.

100635

6354. Internal combustion engines. Lozinski, C. 101392

6512. Regenerative coke ovens. British Coke Ovens Limited
and Schuster, F. M. N.	101394

7454. Hoisting and transporting mechanism. Travell, W.

101396

9937. Dynamo electric power trasnmission apparatus of the
unipolar type. Breslauer, M.	100894

11085. Boring and like machines. Downs, C., and Little-

john, W. B.	101405

Complete Specifications Open to Public Inspection Before
Acceptance.

[Note.—The numbers following the application are those
which the application will finally bear.]

1916.

9588.	Hauling or winding machinery.	Siemens-Schuckert-

werke Ges.	101407

12396.	Electric furnace.	Rennerfelt, I.	101412

12690.	Generating and	lighting devices.	Deventer,	H. R.

- van.	101422

Application for Grant of Licence Under Application to be
Tested in the Custodian.

No. and yr. of ap- plication.	Name of applicant for patent.	Short title.	Name & address of applicant for licence.	Date of hearing.
7206/14	Piernay		Walls and tuyeres o f furnaces.	S. N. Wellington, 62, London Wall, E.C.	Sept. 27.

Any person interested who desires to be heard in opposition to the
above-mentioned application must give notice in writing addressed to
the Comptroller-General of the Patent Office, 25, Southampton-
buildings, London, W.C., before the date of the hearing.

Application for Restoration of Lapsed Patents.

L. L. Summers has made application for the restoration of
the patents granted to him for “ Improvements in coking
processes,” numbered 3197 and 7049 of 1910, and “ Improve-
ments in and relating to coke ovens,” numbered 6504 of 1910.
Any person may give notice of opposition to the restoration
by leaving Patents Form No. 16 at the Patent Office, 25,
Southampton-buildings, London, W.C., on or before
November 20, 1916.

GOVERNMENT PUBLICATIONS.

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

Reports of the Chief Registrar of Friendly Societies re
Industrial and Provident Societies for 1914, Is.

Statutory Rules and Orders : (No. 557), Customs, Procla-
mation, August 18, 1916, l|d.; (No. 588), Trading with the
Enemy, Order in Council (No. 8), l|d.

LIST OF MINES IN THE UNITED KINGDOM
FOR 1915, 4s. 6d.

OUTPUT OF COAL IN THE UNITED KINGDOM,
RETURN, Id.

PUBLICATIONS RECEIVED.

‘‘ Proceedings of the South Wales Institute of Engineers ”
(Vol. 32, No. 2), price 5s.; ‘‘ Mining Magazine ” (Vol. 15,
No. 3), September, price Is.; “The Engineering Maga-
zine” (Vol. 51, No. 6), September, price Is.; ‘‘Bulletin
of the American Institute of Mining Engineers,”
September.

Grimsby Coal Exports.—Returns for the week ended
September 15 show that the following quantities of coal have
been exported from Grimsby : Foreign : To Dieppe 1,217,
Malaga 894, and Esbjerg 224 tons; total, 2,335 tons, against
15,618 tons foreign and 550 coastwise during the correspond-
ing week of last year.

French Fuel Imports.—During the first seven months of
the current year, the imports of coal into France amounted
to 10,926,560 tons, or approximately the same as in the
corresponding period of last year. On the other hand, the
imports of coke increased from 68,151 tons to 509,802 tons,
and those of briquettes from 247,540 tons to 353,914 tons.
In consequence of the larger supply of British coke, the
French iron works were able to increase their pig iron output
by 440,000 tons. The Franco-British arrangement for the
supply of coal at fixed prices is reported to be working satis-
factorily, except for the scarcity of tonnage.