244

THE COLLIERY GUARDIAN.

February 1, 1918.

increasing the quantity of the gas flowing through the
upper orifice p. Similarly, when the plug is turned in the
reverse direction, the passage v between the conical seat-
ing of the body and the conical lower portion of the plug
will be decreased, thus reducing the flow of gases through
the upper orifice p. In this way, the flow of heating gases
through the control nozzle can be varied within all practic-
able limits. The heating gases then ascend and pass
through the guide nozzle a possessing an orifice of cross
section in excess of that of the orifice n in the body of the
control nozzle. Deposition of carbon, due to dissociation
of the heating gases, within the orifice of the guide nozzle
may then be conveniently removed by passage of air or
steam, such deposition exposing a considerably larger area
‘ for reaction with the oxygen than in the usual form of
nozzle, so that the deposition may not attain such limits
as could tend to impede the flow of the regulated volume
of heating gases into the heating flue 5. Combustion of
heating gases and air is effected in the heating flue.
(•Seven claims.)

111165. Improvements in Miners' Electric Safety Lamps.
0. Oldham, Hyde-road, Denton, near Manchester.—
This invention relates to miners’ electric safety lamps,
and has for its object to provide a neat and portable
form of lamp which will be especially suitable for
the occasional use of officials in mines should they
happen to lose the flame of their oil safety lamp, as
sometimes occurs when testing for the presence of
inflammable gas, or as is desirable for the purpose of
examining falls or cavities requiring the lamp to be
tilted to any position. Fig. 1 is a vertical sectional
elevation of a lamp embodying the invention; fig. 2 is
an underneath plan of the cover, and fig. 3 a plan of the
battery; fig. 4 is a vertical sectional elevation show-
ing slight modifications. The lamp comprises a cylind-
rical outer casing a of metal, provided at its upper end
with a screw on cover or lid b, preferably locked in
place by means of a bolt c, which engages a notch d
in the upper end of the casing and by a lead sealing rivet
passed through the aligning holes e. The lens or bulls
eye / is carried by a central flanged portion g on the top
of the cover b, and a flanged reflector h, carrying the lamp
bulb i, is held in place beneath the lens by means of a
screwed ring j engaging an intermediate insulating ring k
of ebonite or other suitable material. The diameter of
the flange I on the reflector h is less than that of the lens
/ so that by this means of holding it in position its circuit
is entirely independent of the lamp case a, b. The spring-
contact m on the accumulator or dry cell n of the lamp is
engaged by the tip of the lamp bulb i, and is carried on a
metal bridge piece 0 or block which is held in place on the
top of the cell by means of a nut p which engages an
upstanding screwed pin or terminal q electrically connected
to one pole of the cell. A flat nickel spring r acts as a
switch by being pressed by a spring controlled by a finger
push s against the nut
p, in fig. 1. An annular
extension t of the
reflector h} into which
latter the lamp bulb
i screws, is engaged in
fig. 1, by the other
spring contact u
directly secured on the
other terminal of the
cell. The body of the
finger push s is formed
of fibre or other insu-
lating material. The
bridge piece 0 and the
spring r are normally
insulated in fig. 1, from
the pin q and the nut
p by means of a fibre or
other insulating bush
v formed with a de-
pending reduced
portion engaging in
holes formed in said
bridge piece and
spring. An insulat-
ing lining sleeve w
is fitted within the
member t. When the

through q, p, r, o, mf i, 7t, t, and u or ™ce versa. The
before described construction renders it easy to renew*
the cell as the bridge piece 0, the spring r, the bush v,
and the contact m can be removed from the cell by simply
screwing off the nut p, and these parts, together with the
other contact u, can be placed on a new cell and fixed in
position as before. In the construction of lamp shown in
fig 4, one of the contacts, m, on the cell is adapted to
engage the tip of the lamp bulb i, as before, whilst the
other contact r, which is in the form of a flat nickel spring,
is adapted to act as a switch by being pressed by the
spring controlled finger push s directly against the annular
extension t of the reflector h. The lamp case, the cover
and the switch are all completely flame - tight when
assembled and are therefore pre-eminently suitable for use
in mines. (Four claims.)

AWr. 1

s is





Partnerships Dissolved.—The London Gazette announces
dissolution of the following partnerships: W. Jones Thomas
and C. H. Appleton, trading as Thomas and Appleton, ship
owners, coal exporters, etc., Victoria-buildings, Bute-
street, Cardiff; C. Dolphens and G. Valcke, trading as
Valcke and Dolphens, Beverley Engineering Works,
Barnes; and W. Hartley and H. Cottrell, trading as W.
Hartley and Company, metal merchants, 130, Burlington-
street, Ashton-under-Lyne.

NEW PATENTS CONNECTED WITH THE
COAL AND IRON TRADES.

Applications for Patents.

January 21 to 26 (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.]

Aspinall, F. W. Heat engines. (1335)

Athey, VV. T. Safety crane hook. (1300)

Babcock and . Wilcox (Babcock and Wilcox Co.). Oil
burning apparatus. (1323)

Babcocx and Wilcox (Babcox and Wilcox Co.). Atomisers
or spraying devices. (1324)

Biickstrom, H. M., Cederberg, I. W\, and Kyhlberger,
G. A. Method of fixation of nitrogen for producing
ammonia, etc. (1558)

Backstrom, H. M., Cederberg, I. W., and Kyhlberger,
G.A. Process of producing ammonia. (1559, 1560)

Baker, H. Recovery of ammonium chloride from
ammoniacal liquor with the extraction of cyanides,
etc. (1211)

Bernitz, E. Furnace walls. (1188)

Birrell, W., and Donaldson, J. Steam boilers. (1247)

British Thomson-Houston Company, and Clinker, R.C.
Level indicators. (1397)

British Thomson-Houston Company (General Electric
Company). Centrifugal compressors. (1251)

British Thomson-Houston Company (General Electric
Company). Safety lamps. (1463)

Compagnie pour la Fabrication des Compteurs et Materiel
d’Usines a Gaz. Manufacture of producer gas.
(1159)

Davies, W. R. and Thomas, H. S. Appliances for manu-
facture of tin-plates or sheets, etc. (1140)

Ditchfield, J. Self-generating electric power plant.
(1359)

Dobson, E. and S. Clinometer. (1569)

Donald, P. G. Gravity, etc., runways. (1489)

Donald, W. Open-hearth, etc., metallurgical furnaces.

(1229)

Feuerheerd, E. Rotary engines, pumps, etc. (1312)

Fletcher, Russell and Company. Rotary compressors or
pumps. (1442)

Gillespie, A. W. W. Rotary engine applicable also as
a pump. (1487)

Hope, H. G. and R. Level-indicating instrument. (1522)
Hornby, F. Electric accumulators or storage batteries.

(1313)

Hudlass, F. W. Internal combustion engines. (1469)

Inglis Boiler Syndicates and Inglis. G. Fire tube
boilers. (1530)

Jacobsen, P. E. V. Rotarv motor. (1494)

James, T. C., Jones, J. I. M., and Lewis, R. I. Manufac-
ture of explosives. (1517)

John, W. E. Explosive turbines. (1208)

Landrin, P. Manufacture of explosives. (1349)

Litwin, P. Coke furnace for gas generator. (1166)

Martin, R.. and Richards, J. I. Furnaces for roasting
ores. (1174)

Mascord, G. W. Vaporisers for internal combustion
engines applicable in manufacture of gas and dis-
tillation of hydrocarbons. (1343)

Mason, G. W. Prime movers or power engines. (1233)
Massey. T. H. Rotary compressors or pumps. (1442)
Merz. C. H. Steam turbines. (1518)

Milnes, G. Pedestals for collierv corves, tubs, etc.

(1236)

Morton, C. M.. and Steavenson, C. H. Portable coal-
screening apparatus. (1155)

Murray, T. B. Combustion engines. (1305, 1307)

Newman, A. J. Screening circulating water for con-
densers, and screens therefor. (1153)

Ogden, J. E. L. Liquid pumps or elevators. (1259)

Pieters, J. Charging apparatus for distilling apparatus.

(1272)

Pieters, J. Apparatus for discharging coke, etc. (1273)

Pieters, J. Coke ovens, etc. (1274)

Roesch, G. Engines of the swash-plate type. (1350)
Rouse, T. Manufacture of iron and steel. (1557)
Russell, W. Coal washing. (1170)

Savage. H. A. Pumps. (1410)

Shepherd, T. Internal combustion turbines. (1214)
Smith. H. D. Internal combustion engines. (1469)
Soc. 1’Air Liquide, Soc. Anon, pour 1‘Etude et ,1’Exploita-
tion des Procedes G. Claude Fluid compressors.
(1348)

Southorne, AV. H. Furnaces. (1230)

Stansfield, J. W. Treating smoke, furnace gases, exhaust
gases, etc. (1523)

Still, W. J. Internal combustion engines. (1479, 1480,
1481)

Thompson, W. Clinometer. (1285)

Tuckfield, C. Internal combustion engines. (1218)

Twvnam, T. Recovery of potash salts in manufacture of
pig iron. (1149)

Vickers Limited. Pumps. (1410)

Waite, J. N. Apparatus for obtaining gas from com-
bustible materials. (1257)

Wake, J. F. Pit props, etc. (1488)

Winton, A. Combustion engines. (1478)

Complete Specifications Accepted.

(To be published February 14.)

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

1916.

15009. Jullin, A. J. Apparatus for regulating the
voltage of dynamos. (101888, 101889)

17629. Bergmann Elektricitats Werke Akt.-Ges.
Dynamo electric machine for the conversion or
simultaneous production of alternating currents
of different frequency. (102618)

749. British Electric Transformer Company, and Hill,
R. Crosbie-. Phase transformer of electric
currents and transformers therefor. (112651)

819. Joel, H. F., and Fletcher, F. P. Dynamo electric
machines. (112655)

844. Foster, W. J. Construction of blast furnace bosh.
(112658)

944. Anderson, W. Two-stroke internal combustion
engines. (112665)

1353. Dragerwerk, H. and B. Drager. Pressure gauges.
105060.

2090. Holehouse, W. H., and Holehouse, W. Boiler
furnaces and the like. (112687)

2143. Hardaker, J. T. Elevating trucks. (1.12689)

3514. Goodrich, W. F., Hamlyn, W. R., and Goodrich
and Hamlyn. Mechanical stokers. (112695)

3766. Thompson, J., Wind, A., and Allen, W. R.
Steam boiler and other furnaces. (112697)

4278. Halkett, R. Oil fired furnaces. (112700)

5292. British Thomson-Houston Company. (General
Electric Company). Electric regulators.
(112708)

8041. Davey, H. Method of operating steam engines
and steam turbines. (112726)

9169. Wild, L. W., and Barfield, E. P. Electrical
furnace for hardening steel and the like.
(112731)

9651. Stirling Boiler Company, and Mackay, H. J. S.
Soot and like access doors for smoke flues.
(112734)

11629. Binche, G., Dupuis, C., and Prignol, H. Two-
stroke explosion motors. (109,439)

12646. Wallwin, J. M. Gas-heated furnaces or muffles.
(112747)

13032. Waygood-Otis Limited (Otis Elevator Company).
Inclined endless conveyers or escalators.
(112749)

14970. Watson, G. Furnace grates. (112755)

Complete Specifications Open to Public Inspection Before
Acceptance.

1917.

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

1917.

16112. Plegat, A. J. Elastic fluid engines. (112767)

1918.

982. Riviere, G., and Compagnie Generate de Construc-
tion de Fours. Method and means for eliminat-
ing the slag in gas producers. (112781)

PUBLICATIONS RECEIVED.

“ Chemical Engineering and Mining Review ” (Vol. 10,
No. 110). November 1917.

Mr. Joseph Oxley informs us that he has ceased to be
director and manager of Messrs. Thos. Oxley Limited, Shef-
field, and that he has commenced business on his own
account as an iron, steel, and machinery merchant, Vicar-
lane, Sheffield, with works at Darnall and Unstone.

General Federation of Firemen’s, Examiners’ and
Deputies’ Associations of Great Britain.—The annual meet-
ing of the Federation was held at the Exchange Hotel,
Manchester, on January 17, 18, and 19. Mr. W. Johnson
(Durham), president, occupied the chair. The meeting
passed votes of condolence with the relatives of the terrible
disasters which had occurred in North Staffordshire and
Lancashire. The conference considered the action of the
Yorkshire coal owners in their efforts to establish a benefit
scheme. It was argued that, under present rules, such a
scheme would destroy all trade union organisations in
Yorkshire. Speakers declared that the effort is princi-
plaly arrayed against the Yorkshire Deputies’ Association,
but that miners also were being pressed into the scheme.
Resolutions dealing with the matter were passed. The
general secretary’s report showed an increase in the mem-
bership, which now totals 15,000. Associations of deputies
are now established in nearly every county in the kingdom.
Mr. John Hilton attended as the representative of the
Minister of Labour, and addressed the conference upon the
Whitley Report. It is understood that the Deputies*
Federation desire a National Joint Council to be set up in
the interests of the deputies and colliery owners. A large
number of resolutions were down on the agenda for con-
sideration. One dealing with shot-firing was deleted from
the deputies’ duties; and the appointment of a whole-time
secretary for the Federation was relegated to the executive
for consideration. Kent Association applied for affiliation,
and was accepted. The Bristol coal field, we understand,
will apply at the next conference. The following officers
and committee were elected :—President, Mr. W. Johnson
(Durham); vice-president, Mr. H. Gill (Derbyshire);
treasurer, Mr. J. W. Sumnail (North Staffordshire); secre-
tary. Mr. W. Frowen (South Wales); members of executive
committee, Mr. S. Coulthard (Northumberland), Mr. P.
Derbyshire (Lancashire and Cheshire), Mr. H. Clarney
(Yorkshire).

TUBE MANUFACTURERS

EDWIN LEWIS^JONSJJD^WOLVERHAMPTON.

Works : M0NM0RE GREEN and ETTINGSHALL. LIVERPOOL Warehouse: 58, SOUTH JOHN STREET.

Telegrams: “LEWIS, WOLVERHAMPTON.”	Telephone : N». 1147 WOLVERHAMPTON (Private Brandi Exchange).