290

THE COLLIERY GUARDIAN.

August 6, 1915.

into contact with said side wall a3. Ratchet teeth / are
formed in the wall a3, and with these teeth engages the
ratchet or catch g, fulcrumed at g1 upon the lever c; it
engages therewith either by gravity or by means of a spring
and holds the block b in position against the rope, when it
has been pressed against same. (Three claims.)

15296 (1914). Improvements in or Connected with
Weighing Machines. Henry Pooley and Son Limited and
J. Dobson, both of John Bright-street, Birmingham, War-
wickshire.—Has reference to weighing machines of the kind
in which shocks or jars to the weight indicating mechanism
due to the load suddenly coming on to the platform or recep-
tacle for the load are prevented by means" of free motion

arrangement or mechanism in the connection between the
weighing platform and the indicating mechanism; and it
also has reference to weighing machines where weights
come into action automatically, successively, in connection
with the weighing mechanism when a load which comes
on to the platform is above a certain amount; and there
may be one, two, or more of such weight's. The invention
has primarily for its object to provide improvements in con-
nection with machines having these characteristics of the
weighbridge type. Fig. 1 is a front elevation, partly in
section, of part of the improved weighing machine or weigh-
bridge; and fig. 1a is a similar view to fig. 1, to a smaller
scale, of the lower part of the machine. (Four claims.)

16984 (1914) Improvements Relating to Electric Circuit
Breakers. G. Ellison, of Victoria Works, Warstone-lane,
Birmingham.—Has for its object to construct an improved
circuit breaker, which is adapted more especially for domestic
or small power circuits receiving their current from public
or other supply mains, such circuit breaker enabling the use
and the consequent inconvenience of the more common fuses
to be avoided. The invention comprises the provision in a
switch of the known type, in which an operating hand lever
is arranged in conjunction with one shaft, and the operating
mechanism for a pivoted contact arm in conjunction with
another shaft parallel to the first shaft, of a hook, catch,

Fig.2

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or the like on a lever carried by the second shaft, which
hook can detachably engage the operating mechanism of the
contact arm, and be actuated for releasing the said
mechanism by a no-voltage, overload, or like device, and a
toggle for transmitting motion from the handle to the lever
carrying the hook, with or without a further toggle between
the second shaft and the contact arm, the toggle being
relied upon to hold the switch contact arm in the closed
position. Fig. 1 is a front elevation with front cover
removed; and fig. 2 is a sectional end elevation of a switch
constructed in accordance with the invention. (Two
claims.)

19495 (1914). Improvements in or Relating to Artificial
or Block Fuel. H. Faraday, of 8, Acresfield-road, Irlams-
o’-th’-Height, Lancashire. — Relates 'to artificial or block
fuel composed of pulverised coal, coal dust, or slack mixed
with a binding agent or material composed of or comprising
flour and/or chloride of sodium, and subjected to the action
of moist heat by direct application of steam and immediately
pressed or moulded into suitably shaped briquettes or
blocks. As a binding agent for the pulverised coal, coal
dust, or slack, a mixture of ground maize and chloride of
sodium is employed in or about the proportion of maize, two
parts; chloride of sodium, five to six parts. In the process
of manufacture, the maize and chloride of sodium are first
thoroughly mixed together in the dry state. The mixed
maize and chloride of sodium and the coal are then
thoroughly mixed together in the. dry state, preferably in
a disintegrator. The mixed materials are afterwards cooked
or agglomerated in a cooker, consisting of a pan fitted with
revolving paddles, or the like, and into which steam is
injected. The cooking or agglomerating is carried on until
the mass becomes more or less semi-plastic, and will bind
when subjected to pressure or moulded. As soon as this
stage has been reached, the steam is cut off, and the cooked
or agglomerated semi-plastic substance is discharged from
the cooker and moulded before it cools by a briquetting
machine or other means, into suitably-shaped briquettes or
blocks. (Two claims.)

18870 (1914). Combined, Lampholder and Contacts for
Electric Portable Lamps, G. Pearson, 3, Lancaster-gardens,

Southend-on-Sea, Essex.—Relates to an improved arrange-
ment for combining the lampholder and contacts for miners’
electric safety lamps, and is obtained as follows, viz. :—
Fig. 1 : A metal plate a is cut or stamped out to serve as a
contact for one pole of the battery. On this is placed a
piece of fibre b with a hole in the centre, and through this
comes the lampholder c, soldered on to the plate a. Through
the hole in the centre of b is a second fibre d to insulate it
from contact plate a and lampholder c, and through the
centre of d is placed a single contact terminal for the lamp,
with a spring and plunger e. The plate a is bolted to the
fibre b, and at the same time to the top part of the lamp by
means of bolts f and nuts g. Fig 2 : Shows plate a with
nuts g, which, when slightly loosened, allows the lamp-
holder c and contacts a and e to be withdrawn from the
lamp for the purpose of changing the bulb, or for cleaning,
without removing, the fibre b. Fig. 3 : Shows the fibre b
with plate a bolted on, and which may be released by slightly



-6

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unscrewing the nuts g and turning from slots i. Also extra
screws s further securing the fibre to the top of the lamp.
d shows the centre fibre insulation; e the centre contact; r
a small hole for contact plunger of batteiy to fall in to keep
it in position; j the run of the contacts on plate a and off
again on to the fibre b by slightly turning the top of the
lamp backwards and forwards. Fig. 4 : Shows how bolts
f are fixed to the top part of the lamp, and how contact
plate a and fibre b are bolted on nuts g. (One claim.)

23109 (1913). Improvements in Apparatus for Promoting
or Restoring Respiration. The firm Dragerwerk, Heinr.
and Bernh. Drager, of Moislinger Allee 53, Lubeck, Ger-
many.—Relates to the apparatus described in the specifica-
tion of Letters Patent No. 20182 of 1908. In accordance
with the present invention, all interposed flexible pipes are
dispensed with, and there is arranged directly upon the
mask itself, that is to be fitted to the person to be revived,
a system of passages in which the jet producing or assisting
lespiration and operating by means of compressed air or
oxygen is fitted with a reversing member, which can be

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operated in correspondence with the rhythm of the respira-
tion. Fig. 1 illustrates a face mask, by way of example,
with the system of passages referred to fitted to the front
thereof, the view being a sectional elevation on the line 1, 1
of fig. 3, and shows the reversing member adjusted so that
the oxygen passes to the atmosphere; fig. 1B is a similar
view, but taken on the line la, la, of fig. 2, which shows
the reversing member adjusted to admit oxygen to the
respiration mask; figs. 2 and 3 are sections on the lines 2, 2
and 3, 3 respectively. (Two claims.)

22944 (1913). Improvements in Respirators for Use in
Mines and the like. C. Travers, of Frankenholz, Rhein-
pfalz, Germany.—Has reference to devices of the kind in
which, on inhalation, air is drawn through a dust removing
vessel, and thence by way of an inlet valve, through nozzles
or the like connected with said vessels, and adapted for
insertion into the mouth and nostrils of the user, the air
on exhalation passing by way of an outlet valve to the
atmosphere. According to the invention, a receptacle is
provided containing a removable frame of serpentine forma-
tion to form passages running in opposite directions, the
walls of which passages are provided with a substance con-
taining moisture, and with relatively displaced apertures, to
permit air to pass through said passages, and transfer its
dust to this substance by striking against, and passing along,
the substance on the walls. Funnel members are provided
for reception in the mouth and nostrils of the user, said

funnel members each being provided with an inlet and
outlet valve. The accompanying drawing is a vertical
longitudinal section of a reservoir or humidifier shown with

a funnel for the nostril and a funnel for the mouth of the
user. (Four claims.)

22522 (1913). Improvements in or Relating to Boring and
Drilling Apparatus. V. Petit, of Targowiska, Galicia,
Austria.—Sliding joint deep drilling machines are known,
in which the reciprocating movement of the drill and its
rod are utilised by the intermediary of suitable means for
producing a pumping effect for flushing the drill holes
formed. In accordance with the invention, the lower portion

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5

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of the sliding joints with which the pump cylinder is
rigidly connected, is formed as a stuffing box for the upper
part, which part acts as a piston so that the pump cylinder
is not affected in such a measure by the mutual strains
and wear of the two portions of the apparatus. An embodi-
ment of the invention is illustrated in axial longitudinal
section in the accompanying drawing. (Five claims.)

THE ACQUISITION OF ENEMY PATENT RIGHTS.

The following list of British Patents, which have been
granted in favour of residents of Germany, Austria, or
Hungary, is furnished in view of the new Patents Acts,
which empower the Board of Trade to confer upon British
subjects the right to manufacture under enemy patents,
which right, when acquired, can be retained after the war,
and is specially compiled for the Colliery Guardian by Lewis
Wm. Goold, chartered patent agent, 5, Corporation-street,
Birmingham. It is desirable in the first instance to obtain
the latest particulars upon the Patents Register. If any
patent listed has been assigned to a non-enemy proprietor,
the law does not apply.

24782/04. Explosives. The flash is reduced by adding an
alkali bicarbonate and a neutral body, such as
camphor or vaseline, to explosives containing
nitro-cellulose and nitro-glycerine. An example
contains one to two parts of sodium bicarbonate,
five parts of vaseline, 75 parts of nitro-cellulose,
and 25 parts of nitro-glycerine.	C. Dutten-

hofer, Germany.

25377/04. Rotary pumps. In apparatus of the type in which
vanes slide axially through a rotating drum,
and bear against cam-shaped surfaces on the
covers, the drum is made so narrow as to have
a considerable space between it and the cam
surfaces. The drum in consequence carries
three or more vanes, and the inlets and outlets
are placed in the sides instead of the ends of
the apparatus. The apparatus may be single-
acting, one side only of the drum being used.
W. von Pittier, Germany.

25426/04. Pumps; pump valves; flexible diaphragm pumps.
Consists in an arrangement of valves in pumps
for muddy liquids, by means of which the valves
are tightly closed even when there is mud
between the sides of the valve seat, in the space
in which the valve moves. The guide feathers
of the disc, which constitute the delivery valve,
are cut away to correspond to the form of a
ball valve, which is arranged immediately below
the disc valve, and forms the suction valve, so
that when a stroke of the pump is effected, the
ball enters the opening in the guides, and only
a small space need be left between the valves in
order to create a large passage for the mud. The
settling of mud in the guide openings of the
suction valve is avoided by this means. G.
Schwenzer and T. Hammelrath, Germany.

25527/04. Coking. Relates to coke ovens provided with
vertical heating flues and air and gas supply