452

THE COLLIERY GUARDIAN.

March 1, 1918.

ensure the uniform distribution of the air for combustion
and the heating gases within each individual heating flue,
and. to properly control the uniform heating of the whole
of the side wall of the coking chamber and uniformly dis-
tribute the products of combustion within the regenerator
a horizontal canal nl situate above the refractory checker
work of the upper regenerator s is provided with a series of
graduated openings h, whose cross sectional area gradually
diminishes from that end of the regenerator1 farthest
removed from, to that end of the regenerator adjacent to
the flue x, which is directly in communication with the
waste gases flue communicating with the stack. The pres-
sure differences between points in the horizontal canal
n1 and points vertically beneath in the upper regenerator
s and the heating flue v are greatest in proximity to the
flue x, and least at the opposite extremity, therefore, by
constricting the openings h in the manner described and
exactly adapted to these pressure differences equal quan-
tities of the products of combustion are caused to pass
through each opening, thereby securing uniformity in the
distribution of heat over all parts of the side wall of the
coking chamber, and equality in the temperature at all
points taken upon a horizontal line in both regenerators.
In contradistinction to the ordinary form of coke oven in
which control over each half of the series of vertical
heating flues is separately and alternately attained by con-
stricting their outlets to secure the passage of uniform
quantities of combustion products from all heating flues by
means similar to those hereinbefore expressed, the control
in the present invention is removed from the outlets of the
heating flues to a point above the regenerator, or below
when the heating gases are burning in a downward direc-
tion, which controls not only the whole of the heating flues
of the side wall of the oven, as opposed to one-half thereof
in the ordinary form of coke oven, but, in addition, also
controls the uniform distribution of the air being heated
in one regenerator, and the uniform and equal flow of the
products of combustion through the other regenerator,
which likewise uniformly absorbs the useful heat from the
products of combustion. The products of combustion pass
down the flues x and into the wa^ste gas flue, and from
thence to the atmosphere through the stack. The flow of
gases is reversed at suitable intervals, cold air being drawn
through the valve t1, the valve t being closed, through
the flue x into the horizontal canal n1 situate above the
regenerator s. The air is uniformly distributed to the
regenerator by means of the graduated openings h and
passes downwards through the regenerator duct into the
subsidiary ducts r and r1 meeting the heating gases in the
heating flue v in which the combustion is graduated in like
manner to that when combustion is effected in the upward
direction. The products of combustion flow downwards,
and after imparting their useful heat to the whole of the
side wall of the coking chamber all the heating flues adjacent
to the side wall of coking chamber being fired simultaneously
in a downward direction, pass downwards through the
subsidiary ducts r2 and r3 into the regenerator duct, and
from thence are admitted to the upper part of the lower
regenerator s1. The refractory checker work of the lower
regenerator s1 absorbs the useful heat of the products of
combustion. Similarly to the method explained when
referring to the control effected by the graduated openings
of the horizontal canal n1 above the refractory checker
work in the upper regenerator s, likewise complete control
of the air, heating gases and products of combustion when
flowing in a downward direction is effected by the gradu-
ated opening j in the upper arch of the distributing flue
n. The cross sectional area of those openings gradually
diminishes from that end of the regenerator farthest
removed from, to that end of the regenerator adjacent to
the waste gases flue, so ensuring the uniform distribution
of air, heating gases, and products of combustion within
the upper regenerator s, the heating flues, and the lower
regenerator s1, and the uniform heating of the side wall.
(Six claims.)

111934. Improvements in Coal Cutting Machines. E.
Appleby, 79, Pritchard Street, Tonyrefail, Glamorgan.—
This coal cutting machine is intended to be driven by
hand or attached to and driven by any suitable engine.
The figure represents a plan of the machine looking from
above, and shows the starting of a cut. The machine con-
sists of a horizontal runway rail or girder A, raised a suit-
able distance from the ground, resting and bolted on stools

N.

clamped on standards B provided for each end of runway
rail. These standards are each provided with adjustable
head and suitable base, the head being provided with a
screw for tightening the standard between floor and roof
in position as required. The carriage C is adjusted to
runway rail A by lugs D, having first passed the rail
through the carriage. The carriage is fitted with two
ratchet wheels, one working in teeth formed in the flange
of runway rail A, the other being rotated by a pawl pro-
pelled by eccentric motion provided on shaft H, attached
to bevel wheel G. To propel the carriage along runway an
adjustable handle is fixed on the end of shaft H, either
at the ratchet end of handle or at the eye J2, provided in
the shaft of the handle, the shaft when turned bringing
above motion into play, and the lower ratchet wheel is
slowly taken along runway A. Another bevel wheel K is
also provided on horizontal shaft L, which, when worked
by handle J, adjusted to shaft L, works in bevel wheel
G, and moves the machine as previously described when
using shaft H. The cutter bar M, which is fitted with
teeth N, is driven from shaft H by rotary crank O, and

at the end remote from the carriage C is connected by
semi-rotary crank O1, to stay bar P, the latter being fixed
rigidly to the carriage of the machine. A segmental end
cutter bar R is fixed at one end rigidly to crank O1, at the
end of the stay bar. When either shaft H or shaft L is
turned by handle J, the cutter bars are set into a sweeping
motion and the carriage is propelled along runway, thus
keeping the cutter teeth up to the coal for cutting same.
For the purpose of starting a cut in any part of the coal
face, the machine is fixed on the runway and the pawl is
thrown out of gear by a control finger, which is also used
in above operation for controlling speed of machine. The
runway is then fixed only at one end to a standard, the ■
other end being rested on a bar or rail T, laid horizontally
and pointing towards the coal face. The inclined disc U,
fitted on shaft H, and turning the same, works into and
propels pinion wheel V, on the shaft of which is provided a
worm working into and along the teeth of starter W, the
latter being provided with a shoe for placing against some
stationary object such as a standard mentioned or a fixed
prop. The working of above worm gear pushes starter bar
towards the foot, thus forcing the segmental cutter into
the coal face at the same time as the latter is taking the
sweeping motion hereinbefore described. It is intended
to have the teeth either separately adjustable on cutter
bars or made out of same, also to have them of any shape
to suit particular requirements. The material for this
invention to be of anything suitable. It will be noticed
that the sweep of the cutter bar brings the tooth nearest to
the carriage first into contact with the coal, the other teeth
coming into contact with the coal in direct rotation. (Three
claims.)

111826. Improvements in Apparatus for Separating
Fine Coal or Ores, etc. J. M. Draper, New Foundry,
Bridgend, Glamorgan, and The Rhondda Engineering and
Mining Company Limited, Cambrian Buildings,
Cardiff.—The	present invention relates to that

class of apparatus in which the component parts
of substances, such as fine coal or ores and the like, are
separated according to their different specific gravities by
the action of an ascending current of water which carries
the lighter portions to an overflow situated towards the
upper end and the heavier portions pass downward
through such current and are discharged at the bottom,
and in which a balancing column of liquid is connected
to the apparatus at a point intermediate of the point of
entrance of the water producing the ascending current and
the point of discharge, and it consists in improvements in
the construction of this form of apparatus, which is
described in the Specification of Patent No. 1849, dated
February 5, 1915 Fig. 1 is a vertical section of the vertical
tube-shaped receptacle in which the separation is effected,
and fig. 2 a plan view thereof. Fig. 3 is a detached plan
view of the inner chamber contained in the vertical tube.
In these figs. 1 is the vertical tube-shaped receptacle to
the upper end of which the material to be separated
is supplied through the feed hopper 2, and passing through
the inner chamber 15 is subjected to the action of the
current of liquid entering the tube 1 at 5, and which
carrying the lighter portions of materials upwards with
it causes them to pass out of the apparatus by the over-
flow 3 towards the top. Beneath the point 5 the tube 1 is
provided with an opening or balancing column connection
7, below which said tube is continued to convey the heavier
portions of the material which fall by gravity through
the ascending current to a suitable conveyor 13 by which
it is carried away. The balancing column connected with
the tube 1 at the point 7 is composed of an elongated
chamber closed at upper end and of sufficient height above
the overflow at 3 to allow a considerable body of air to
remain above the normal water level as the result of
material is fed into it from

running the apparatus before
the feed chamber 2. An air
cock at 17 allows the escape
of air in starting the water
flow and thus a normal water
level to be attained both in
the tub 8 and at the overflow
3. The cock 17 is then
closed. Immediately coal or
ore is supplied from the feed
chamber 2 the water level
rises considerably higher in
tube 8 above the level of over-
flow 3, owing to the added
resistance to the upward cur-
rent offered by the body of
material in the conical inner
chamber 15. When cock 17
is closed and the apparatus
is in operation the volume
of air confined in the tube 8
above the level of the liquid
therein, will constitute such
an elastic cushion as will



enable the column of liquid acting at the point 7 on the
volume of water in the separating tube 1 below the point
of entrance 5 of the ascending separating current, to
respond in the most sensitive manner to every fluctuation
occasioned in such tube by variations in the feed of the
material entering the inner chamber 15 from hopper 2, and
the pulsations produced by which might otherwise lead
to irregularity in the material carried off through over-
flow 3, and of that passing out through the bottom dis-
charge. The inner chamber into which the feed falls from
hopper 2 is composed of an upper conical portion 15 which
directs such material to the centre of the tube 1, and which
portion is provided with perforations 16 through which the
ascending current entering at 5 passes, and acts upon the
material therein in the most efficient manner to ensure the
separation and carrying of the lighter portions upwards
to overflow 3. From the bottom of the conical portion 15
a downwardly depending narrow parallel or tubular por-
tion 18 extends and terminates a certain distance above
the point of entrance of the ascending current 5,
where it preferably flares or opens slightly outward, thus
providing an extended zone of travel downward for the
material. The interior of the casing of the tube 1 in the
vicinity of the ascending current entrance 5 is preferably
provided with an upward inwardly extending web 19, and
with a similar web 20 in the vicinity of the balancing
column connection 7, and which have the effect of
neutralising any tendency the flow through the tube would
otherwise have of producing eddying currents which would
impair the efficient ascending separating action of the
current on the material, the descent of which should as
far as possible be uniform and gradual, and in a vertical
direction without any gyratory motion. (Four claims.)

Vacancies for certifying surgeons under the Factory and
Workshop Acts are notified at Trim and Connor (both in
Ireland) and Stirling.

HEW PATENTS CORRECTED WITH THE
COAL ARD IRON TRADES.

Applications for Patents.

February 18 to 23 (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.]

Adams, C. H. Pumping plant. (3157)

Alexander, W. Two-cvcle internal combustion engine.
(3001)

(American Steam Conveyor Corporation). Ash convevor
systems. (2956, 2957)

Blakeley (Firth), Sons and Company. Arrangement and
operation of vertical gas retorts. (3240)

Boizard, R. Burning inferior or anthracitic fuel in fur-
naces or automatic stokers. (3006)

Brown and Company, J. Steam turbine installations.

(3168)

Burridge, G. A. Internal combustion engines. (3164)

Churchill, P. Dynamo electric machines. (2985)

Climie, W. Gas producers. (2994)

Creedy, F. Dynamo electric machinery. (3056)

Crossley, Sir K. I. Internal combustion gas and oil
engines. (3090)

Cunningham, W\ Coke oven doors. (3258)

Eder, J. B. Mine, etc., electric bells. (3014)

Ellor, J. E., and Fowler, Sir H. Internal combustion
prime movers. (2921, 2923)

Frost, C. R. B., and Frost Patent Engine Syndicate.

Compressors. (2972)

Gardner, J. High-speed reciprocating engines. (2850)
Hackett, J. J. Internal combustion engines. (3164)
Halliday, G. F. Two-cycle internal combustion engine.

(3001)

(Holden, R. W.). Reversible steam turbine. (3125)
Humphrey, G. F. Utilisation of exhaust steam. (3183)
Huntley, G. Apparatus for discharging cargoes of and

loading ships, etc., and for handling goods. (2828)
Jones, J. Mechanical draught and ventilating fans.

(3151)

Kimber, W. E., and Palmer, T. C. Retort for treatment
of oil shale. (3173)

Lacey, F. Internal combustion engine of the turbine
type. (2856)

McLay, J. A. Boiler feeding and prevention of corrosion
in pumps, pipes, valves, chests, boilers, etc. (2973)

Moorhouse, L., and Simpson, C. W. Carbonisation and
distillation of coal, etc., by electricity. (2878)

Nitrogen Products and Carbide Company. Destructive
distillation of carbonaceous materials. (2920)

Oakden, T. A., and Owen, H. Safety device for sealing
off gob-fires in mines. (3154)

Oxspring, R. Rotary engines. (2868)

Perkin, F. M. Destructive distillation of carbonaceous
materials. (2920)

Rogers, F. Electric resistance furnaces, etc. (3070)

Russell, W. H. Apparatus for distillation of carbonaceous,
etc., substances, such as coal, shale, peat, etc. (3232)

Schneider et Cie. Apparatus for varying delivery of air
and gas compressors. (3118)

Shaw, E. J. A. Arrangement and operation of vertical
gas retorts. (3240)

Smith. D. J. Scrubbers, cleaners, and coolers for gas.

(2832)

Smith, V. Water tube boilers. (3158)

(Soc. Anon. Italiana G. Ansaldo and Company). Combus-
tion processes. (2851)

(Soc. Anon. Italiana G. Ansaldo and Company). Process
for producing gas from lignite and other combustible
materials, etc. (2924)

Stobie, V. Electric steel manufacture. (2970)

Swift, D. Dynamo electric machines. (2985)

Thompson, W. J. Water tube boilers. (3158)

Walker, J. Railway wagon coupling. (3071)

Walker, J. H. Lifting or hauling gear. (3255)

Webb, W. Le P. Internal combustion gas and oil engines.

(3090)

Wood, H. A. Fuel savers. (2935)

Wood, W. H. Steam turbine installations. (3168)
Woodfield, C. H. Means for luffing jib cranes. (3097)
Wragg, W. Doors for furnaces, etc. (3161)

Complete Specifications Accepted.

(To be published on March 14.)

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

1917.

2258. Kirke, P. St. G. Generation of steam, feed water
heating, and the heating of liquids generally.
(113314)

2428. Wildy, D. W., and Welford, R. Internal combus-
tion engines. (113322)

2691. British Thomson-Houston Company (General Elec-
tric Company). Controllers for electric cir-
cuits. (113332)

3184. Lindley, T. H., and Schreier, H. Rotary engines.
(113342)

5571. Wild, M. B. Winches. (113366)

7820. Lambourne, R. Miners’ safety lamps. (113386)

8220. Perfecta Boiler Circulator Limited, Ayres, P. C.,
and Josling, H. W. E. Apparatus for pro-
moting circulation of water in Lancashire and
other multiple flue boilers. (113388)

8943. Chance, G. B. Fuel economisers. (113392)

9948. Spinney, H. J. Conveyors. (113399)

10756. Manrodt, H. Internal combustion engines.
(113401)

12683. Westinghouse Electric and Manufacturing Com-
pany. Mechanical stokers. (109804)

Complete Specifications Open to Public Inspection Before
Acceptance.

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

1917.

17586. Chinese-American Company. Internal combustion
engines. (113432)

1918.

1273. Pieters, J. Apparatus for discharging coke, etc.
(113436)

1999. Vivez (nee Louvet), J., and Conor, J. Apparatus
for feeding sprayers for heavy oils ana other
liquids. (113439)

2108. Domestic Engineering Company. Internal combus-
tion engines. (113442)