976

THE COLLIERY GUARDIAN.

May 1, 1914.

his control valve carelessly. According to the invention,
advantage is taken (both when lifting and lowering) of the
difference in tension which exists in the tail rope attached
to the hydraulic cylinder, the pull on the tail rope being
communicated to a valve in the supply pipe so arranged

that the less the pull the wider the valve is opened, and a
second valve is provided, operated by the flow of water, to
prevent the empty hook from being lifted too fast. Fig. 1
is a side elevation, and fig. 2 is a plan of the preferred
arrangement. (Four claims.)

18762 (1913). Improvements in or relating to Means for
Testing the Temperature of Hay Stacks and the like. T. J.
Gwilt, of Willowfield, Lower Wood, Church Stretton, Salop.
—Consists in an improved device comprising in combina-
tion, a handle with a T end detachably secured to a casing
having a slot or slots therein one or more apertures for
allowing the easy access of the heat from the stack, a

detachable point, and rubber or other pads to prevent
injury to the thermometer within such casing. Fig. 1 is an
elevation thereof showing the apparatus in position ready
for use; fig. 2 is a perspective view of the detachable point
showing the rubber or other pad in position thereon ; fig. 3
is a view of the extension piece. (One claim.)

22873 (1913). Improvements in Apparatus for Charging
Blastfurnaces with Incandescent Coke. C. Semmler, of
20, Mainzerstrasse, Wiesbaden, Germany.—The apparatus,
according to the invention, comprises a receptacle into
which the incandescent coke can be discharged from the
coking oven or retort, and that is so constructed as to
permit of the direct transfer of the whole or a portion of its
incandescent contents to the charge of ore in the blast-
furnace. In order to retain the heat of the coke, the
receptacle is provided with a cover, and it is prevented
from becoming red-hot by means of a refractory insulating
lining, or by the cooling of its walls by means of a liquid-

pooling medium. Fig. 1 shows in longitudinal section a
receptacle 1 provided with a refractory insulating lining 2,
and with a heat-retaining cover 3, standing in front of a
retort 4, the coke 5 from which has just been transferred to
the receptacle by means of the plunger 6. Fig. 2 shows the
receptacle as provided with a water jacket 7, an outlet
pipe 9 for the escape of gases given off by the coke, and an
eye 10, by means of which it can be pivotally secured to the
upper end of an incline 11, and then tilted to charge the
furnace, as shown in fig. 3. (Two claims.)

22875 (1913). Improvements in and pertaining to the
Utilisation of Waste Heat, more especially that of Ironworks
■and the like. C. Semmler, of 20, Mainzerstrasse, Wiesbaden,
Germany.—Relates to improvements in and pertaining to
the utilisation of waste heat from various sources, and of
varying quantity and temperature, such as that of blast-
furnace gas, slag, air-heaters, puddling and welding furnaces
and like sources commonly available in connection with
ironworks, smelting plant and the like; and it has for its
main object to obtain from such variable heat sources a
practically constant heat supply that can be relied on and
utilised for power and other industrial purposes. The
invention enables waste heat from several different sources
and at several different temperatures to be economically
utilised by means of a heat conveyor, such, for instance, as
distilled water, which is caused to flow past the different
sources of heat in parallel or in series. After having taken
up the waste heat from these various sources, the heat con-
veyor is caused to pass to a storage or heat accumulator
plant, where, being relieved from the pressure to which it
has been subjected, it gives up the heat, generally in the
form of steam production. The heat conveyor is driven
through the heat exchanging apparatus itself at a suffi-
ciently high pressure to prevent the development of steam
therein. It is consequently possible to utilise in a satisfactory
manner even comparatively high temperatures as the heat
exchanging device employed may be adapted to produce the
desired final temperature, no matter how high may be the
initial temperature of the source of waste heat; the forma-
tion of steam then taking place in accordance with the
demand upon a fall of pressure in the heat accumulator.
The heat conveyor proper or the steam developed from it
may now in the heat accumulator give up its heat or energy

to actuate a heating plant or a thermal power engine. It
is, however, also possible to heat by means of it another
closed circuit in which there circulates, for example, a cold
vapour liquid, in such manner that the cold vapour of a
second closed circuit actuates cold vapour turbines or the
like. A special advantage of the method in accordance with
this invention consists in the fact that by means of it heat
supplied at the most varied temperatures can be utilised.
To render it impossible that the heat conveyor, instead of
passing through the heat accumulator, should circulate
between the sources of heat which should be of the same
temperature, but which for any reason whatever, in fact
have different temperatures, the different parallel branches
of the heat conveyor are, according to the invention, adjusted
by pressure-regulating devices, such as reducing valves, in
such manner as to compel the heat conveyor always to pass

through the heat accumulator. It is, moreover, generally
necessary to arrange in front of the heat accumulator a non-
return or reducing valve in order to prevent the entry of
steam into the branches of the heat conveyor. The accom-
panying drawings illustrate by way of example apparatus
for carrying out the invention. Instead, however, of
utilising the heat directly in the closed circuit, as is the
case in the arrangement shown in fig. 1, the heat of the
accumulator a may be used, as shown in fig. 2, to energise a
second closed circuit. Fig. 3 illustrates an arrangement in
which the transmission of heat is subdivided into several
stages in such manner that the preliminary heating of the
heat conveyor (water) is effected by means of the sources of
heat d and d1; the water being thereupon further heated in
the stages d2 and d3. (Five claims.)

CATALOGUES AMD PRICE LISTS RECEIVED.

Messrs. Herbert Morris Limited (Empress Works,
Loughborough) forward a copy of their booklet, illustrating
their latest types of hoist blocks, electric trolley hoists and
runways, cupola hoists, &c.

Messrs. E. G. Appleby and Co. (who have removed to
12, The Broadway, Westminster, S.W.), are the makers of
the Kerpely revolving-grate gas-producer, the “ Phoenix ”
electro-magnet, and various classes of cranes and trans-
porters.

The St. Helens Rubber and Cable Company Limited
(Warrington) send us a new pamphlet dealing with their
patent C.T.S. sheathed cables for wiring work, which are
suitable both for portable machinery and fixed wiring under
severe conditions. The wires mostly used are single-core
for concealed wiring and corrosive situations, round twin or
three-core for straight runs, and flat twin or three-core for
surface wiring. The single conductors are insulated with
vulcanised rubber and then sheathed in the “ cab tyre ”
sheathing put on under heavy pressure; in the round twin
cables the insulated cores are twisted together, the inter-
stices being filled with the compound. In the case of small
twin flexible cords for portables, to increase the tensile
strength of the conductor a steel wire is included. For use
in damp and corrosive situations the company supply a
special junction-box (Whitens patent). This fitting allows
the cable ends to dip into an inner sealing chamber, divided
by partitions to separate the poles. The chambers are
filled with a semi-liquid material of an insulating and
waterproof nature.

The A.E.G. Journal for April contains illustrated articles
on the electric operation of waterworks, canal and drainage
plant, the automatic control of the steam consumption in
steam turbines, and a new machine for electric arc welding.
The condensate meter described in the second of these
consists of two tilting vessels installed over the feed-water
tank. The greater part of the condensate flows from the
pressure piping to a movable distributor placed above the
two vessels in such a manner that it can be easily turned
and controlled by a float in each vessel. The remainder of
the condensate flows to a small swinging tube which moves
the vessels themselves. As soon as one of the vessels is
nearly filled with the quantity of condensate to be
measured, the distributor is moved over by the float and
the water fills the second vessel. Exact balancing is
secured by allowing the missing quantity of water to flow
in a fine jet through the small swing tube until the vessel
has attained the predetermined weight, tilts over and
pours its contents into the feed-tank. The water is then
allowed to flow into the second vessel. The number of
times the vessels are filled and emptied is automatically
recorded.

Hull Coal Exports.—The official return of the exports of
coal from Hull for the week ending Tuesday, April 21,
1914, is as follows :—Antwerp, 472 tons; Buenos Ayres,
1,718; Copenhagen, 113; Hamburg, 295 ; total, 2,598 tons.
Corresponding period April 1913, total 90,835 tons.

MEW PATENTS CORRECTED WITH THE
COAL AM IROM TRADES.

Applications for Patents.

9682. Attachment of wire ropes or cables to the cappels of
colliery cages, and the like. Butterley Company
Limited and C. E. Drabble.

9691.	Process of tinning wire and apparatus therefor.

N. Nield.

9692.	Removal, detection, and estimation of carbon

monoxide from and in gases. J. Harger.

9708. Maximum-pressure alarm. W. M. Melmore.

9738. Apparatus for measuring, indicating, and recording
differences of pressure. O. Roschanek.

9776. Process of welding and appliances therefor. F.
Werner.

9802. Weighbridges, or the like. S. Ashworth.

9849. Method of distilling coal. W. J. Mellersh-Jackson.
(International Gas Development Co., U.S.)

9851. Means for minimising the effects of colliery
explosions. J. J. C. Allison and J. Waller.

9864.	Manufacture of drill steels and similar tools. C. W.

Peters.

9865.	Manufacture of drill steels and similar tools. C.

Bemant.

9915. Safety appliances for rope guides, runners, for pit
cages, hoists, or lifts, and the like, and fastenings
relating to same. D. Evans.

9922.	Gas retorts. H. J. Toogood and Robert Dempster
and Sons Limited.

9923.	Gas retorts. H. J. Toogood and Robert Dempster

and Sons Limited.

9935. Cranes, winches, capstans, hoists, and other machines.
Babcock and Wilcox Limited and F. W. Hollick.

9939. Mode of charging a blastfurnace and the construc-
tion of the furnace for that purpose. R. Wright
and J. Calderwood.

9981. Rotary boring apparatus. S. G. S. Dicker. (J. F.
Lucey Company, U.S.A.)

9983. Means for securing picks, hammer heads, axes and
kindred tools to their handles or helves. D. Rees.

99S6. Mining screen. H. A. Megraw.

10010. Haulage clips. F. Lane and S. E. Williams.

10014. Riddle to enable coal or the like to be graded and
discharged into wagons on one line of rails. J.
Donaldson and British Riddling Company Limited.

10054. Signalling, more particularly mine signalling. A.
Paxton and J. W. Eastwood.

10059. Manufacture of sulphate of ammonia and the puri-
fication of coal gas. J. Mackenzie.

10061. Electric furnaces. A. L. J. Queneau.

10066. Brake mechanism suitable for railway vehicles. G.
B. Bowles.

10071. Apparatus for the destructive distillation of sewage
sludge. R. Nubling and A. Krauss.

10076. Construction of band conveyer. H. Cooch.

10087. Processes and apparatus for separating ores. E.
Primosigh.

10097. Process for the extraction of sulphur from distilla-
tion gases of coal. E. Ciselet and C. Deguide.

10103. Safety gear for mining cages and the like. T. W.
Keenleyside and J. Cribbin.

10110. Gas-detecting apparatus for portable electric hand
lamps. G. J. Ralph.

10117. Blast pipes. G. J. Churchward.

10118. Air supply of furnaces. H. J. Toogood and Robert
Dempster and Sons Limited.

10142. Radial or outward flow turbines. T. G. A. Richardson.

10173. Device for tightening or straining ropes, wires, cables,
and the like, and for like purposes. S. Bidder.

10184. Jig conveyors. H. Flottmann and Co.

10208. Foundry riddles. E. W. Beach.

10212. Boring, drilling, and like machines. Dresdner
Gasmotorenfabrik vorm. M. Hille.

10216. Percussion boring apparatus. V. Gebhardt.

10228. Safety devices for supporting pit cages and like
elevators. J. P. Kenney and G. Sheriff.

10229. Hoisting apparatus. P. M. Christie.

10254. Miners’ safety lamps or the like. E. A. Hailwood.

10256. Rock drill. H. Kliiting.

10257. Preventing explosions and extinguishing fires in
mines, buildings, or like places. E. A. Hailwood.

10267, Rock drills. J. Wetter. (H. Bayon, S.A.)

10284. Coke oven. L. L. Summers.

10285. Means for facilitating the coupling and uncoupling
of driving-chain links. R. B. Downer, G. Baumann,
and Hans Renold Limited.

10293. Pyrometer for recording high or low temperatures.
J. T. North.

10298. Fluid-operated percussive tools. W. J. Mellersh-
Jackson. (Ingersoll-Rand Co., U.S.)

10305. Devices for closing the bottom doors of railway
wagons. W. Parkinson and J. Clark.

10306. Meads for cleaning and straightening tin-plates and
other sheet metal prior to printing. J. H. Rundle.

10312. Ore concentration. L. A. Wood and Minerals
Separation Limited.

Complete Specifications Accepted.

To be published on May 14, 1914.

1913.

1515. Furnaces and fuel-feeding devices therefor. Green-
street.

1734. Metal tube corrugating machines. Brinkman.

2761. Conveyors and Elevators. Taylor.

9007. Rail grinding or surfacing machines. Woods.

9309. Driving or conveyor belts. Turner and Turner.

9341. Turbine engines. Kalvelage.

9350. Piston valves for pumps and the like. James
Simpson and Co, and Shrimpton.

9484. Capels or couplings for cables, ropes, and for like
purposes. Sparkes.

9690. Theodolites and like instruments. C. F. Casella and
Co., and Abraham.

9840. Overwind prevention gear for colliery winding
engines. Smith.

9872. Apparatus for the production and treatment of
smoke, vapours, or gases suitable for use in the
treatment of various materials. Marlow and
Pulsometer Engineering Company.

9996. Control of electro-mechanical transmission gear.
Haworth.

(Continued on page 978.)