352

THE COLLIERY GUARDIAN.

February 12, 1915.

conveyor thereon, or in the form of an articulated band or
belt of trays with upturned sides, said trays or pans, with
watertight joints being connected by suitable chains, and
carried on rollers c, and furnished with suitably formed
transverse dam members or parts, the trough being if
desired of a compound character, furnished- with one or
more longitudinal partitions. The coal is delivered on to
the washing trough b at a position towards the higher
extremity of same, and at the rear of the coal feed d water
jets or nozzles e are furnished for the feeding of the washing
water on to the trough. The part or extension b1 of the
trough b at the rear of the position d of coal delivery is con-
siderably increased in length in comparison with troughs
as at present constructed, said extension being, say, 10 ft. or
so in length, and this increased extension a1 is arranged at
an angular inclination considerably greater than that of
the main or major part of said trough b. Positioned over
the inclined extension b1 are two or more water sprays /,
adapted to spray clean water on to the material in the
trough. In operation a certain quantity of the washing

water is carried back up the belt or trough extension b1 by
the moving dams g, and as a considerable amount of fine
coal is in suspension in said water it will be seen that such
fine coal is mixed with the dirt or foreign matter being
removed by the dams. The degree of inclination of the
belt portion b1 is such, however, that the greatest possible
quantity of this water flows back again to join the circu-
lating water, the said extension b1 being inclined to the
greatest possible degree for facilitating the backward flow
of the water without permitting any part of the dirt to
flow back with said water. Any water which remains
behind the dams g is removed by the clean water sprays /,
and the said sprays also detach any fine coal which has
adhered to the dirt, thereby recovering said coal, and wash-
ing same forward to be carried down the washer with the
coal. By the arrangement a combination of processes and
two washing operations are furnished in one, that is to say,
both coal washing and dirt washing for the recovery of fine
coal are effected. z (Three claims.)

4055 (1914). Improvements in and Relating to the Con-
struction of Pit Tubs, Corves, or Tip Wagons. B. W.
Cuthbertson, of Markham House, Duckmanton, near
Chesterfield.—Consists of an improvement in the construc-
tion of pit tubs or corves or tip wagons made of steel plates,
which plates are jointed at the corners by clips in such
manner that they may be easily and conveniently held
together without rivets or bolts, and also taken apart as
and when required. Fig. 1 shows in perspective a pit tub
or corve, and which is constructed with two ends A and Al,
two sides B and Bl, and one bottom C, fitted with jointing
clips at DI, D2, D3, D4, D5, D6, connecting Bl to C, A to
C, Al to Bl, A to Bl, A to B, and Al to B respectively.
Fig. 2 shows in section one form of clip, in which A repre-



B

B3.

B.s

Bl

Bl.

D*

■B

trB

Fio.4-.

sents one plate and B another having flange-like projections.
The plates A and B are placed with their external apices or
arcs touching one another with a metal clip D passed over
the projecting flanges tightly holding the two plates
together, the clipping force being arranged preferably along
the line X Y, or nearly so. The internal space may be
filled with a wedge E of suitable shape, as, for example,
see figs. 3, 4, and 7 ; or the internal space or spaces may be
filled with pitch, cement, or other suitable fillings in order
to further secure or strengthen the joint, or to make it
more dustproof or watertight, or to assist in preserving the
plates and clips forming the joint. Figs. 6, 8, and 9

illustrate others of the many forms of jointing clips, such
as may be used. (One claim.)

4709 (1914). Improvements Connected with Weighing
Apparatus or the like. W. and T. Avery Limited, of Soho
Foundry, Birmingham; and W. G-. Goulding, of Soho
Factory, aforesaid. — Has reference to improvements in
weighing apparatus or the like; more particularly it is
applicable to counter or platform weighing apparatus of the
type employing what is known as a French stay. The object
of the invention is to prevent the stay from riding up the leg,
in conjunction with which it operates, due to excessive move-
ment of the beam and consequently of the stay or stays.
The invention comprises the addition of two knife-edged
plates, one secured to the leg of the scale, and the other
secured to the stay. The said plates are arranged to inter-
sect and contact with one another at the line of their knife
edges. The knife-edged plate which is secured to the leg
of the scale has two downwardly disposed parts, which are

Fig

\ orr

ft

ii

c
/fl

F i

Figi

B

Fiy 2



bevelled to form knife edges, said knife edges contacting
with the upper surface of the intersecting knife-edged plate
which is secured to the stay. The plate connected to the
stay may be bevelled to form knife edges, where it contacts
with a steel bearing plate secured to the leg of the scale, the
line of knife edge contact of the two intersecting plates being
on the same line as the line of intersection and contact of
the stay and the bearing plate secured to the leg, thereby
preventing any decrease in the sensibility of the scale, while
at the same time the stay is prevented from riding up the
leg in the event of rough or excessive usage of the scale.
Fig. 1 is a side elevation illustrating an ordinary French
stay in combination with a leg which would be connected at
its upper end to the scale pan; fig. 2 is a part sectional
elevation of the mechanism seen in fig. 1, taken on line X—X
of fig. 3; fig. 3 is a plan of fig. 1; fig. 4 is an end elevation
of fig. 1. (Three claims.)

5380 (1914). Improvements in and Relating to Electric
Relighting Apparatus for Safety Lamps as Used in Mines.
J. J. Pugh, 10, St. Leonard’s-avenue, Stafford.—Consists
of a cast iron box approximately 28 in. x 15 in. x 12 in.,
and divided into two compartments. Each compartment
has a separate door, and is self-locking. The bottom com-
partment contains a storage battery, and where high tension
current is used, provision is also made for an induction
coil. When both are required, the bottom compartment is
again divided into compartments suitable. Fig. 2 is a
front elevation of relighting apparatus, with doors removed,
showing safety lamp E in position as for relighting, also
lamp switch and part of inter-locking and safety arrange-
ments in top half, storage battery F, and induction coil G,
with diagrammatic view of wires and connections in bottom
half. The safety lamp E is shown standing firmly in, and

.2.

making good electrical contact with, contact plate M. The
spindle H, which is operated by handle B, is supported
from back of box by a bracket O, and carries a switch blade
I, but .insulated from it; this in its operation makes con-
tact with contacts L fixed on back of box also insulated.
On this spindle H at side of I a cam shaped lever J is fitted.
This operates bolt. N, which is fitted with a spring
W, so -that a constant pressure is applied. The
tongue lever S operates up and down in a tapered lug R on
door frame, and is so arranged that it cannot be removed
or withdrawn except when lever B is in off position; that is,
when switch blade I is disengaged from L. -Therefore
door K cannot possibly be opened whilst current is on; hence
this. operation renders the apparatus “ fool-proof. ”t (Four
claims.)

7494 (1914). Improvements in and Relating to Means for
Lubricating the Moving Parts of Jigging Machines. O. H.
Bohm, of 725, Sargeant-avenue, Joplin, Jasper County,
Missouri, U.S.A.; and W. M. McCoy, of 1212, North 30th-

street, Birmingham, Jefferson County, Alabama, U.S.A.—
It has been difficult heretofore to effectively and economically
lubricate driving mechanism of jigs due- to the conditions
under which the jigs operate. This invention overcomes
this difficulty by providing an oil chamber which reciprocates
with the jig, and encloses the moving parts of the jig recip-
rocating mechanism, and which is entirely closed except for
the openings near its top, through which the power shaft
passes. The closed chamber prevents loss or waste of oil
therefrom, and effectively excludes water and foreign matter

I

from oil chamber in which moving parts of the plunger
driving mechanism are wholly or partly submerged in oil.
Fig. 1 is a plan view of the invention as applied to a jigging
machine; fig. 2 is an enlarged section through the plunger
and eccentric; fig. 3 is an enlarged detail view showing the
means of clamping the packing ring; fig. 4 is a sectional
view of the eccentric casing approximately on the line 4—4
of fig. 2, the eccentric being removed; fig. 5 is an enlarged
detail view of a modified form of pivotal bearing for the
wrist pin; fig. 6 is a section along the line 6—6 of fig. 2.
(Four claims.)

12256 (1914). Process of Regulating the Temperature of
Combustion. A. G-. Glasgow, of 1, West Main-street, Rich-
mond, Virginia, U.S.A., temporarily domiciled at 38, Vic-
toria-street, Westminster. (A communication from abroad
by J. M. Rusby and J. H. Taussig, of Philadelphia, Penn-
sylvania, U.S.A.)—Has for object to regulate or control the
temperature of combustion of a mixture of air and combus-
tible gas. In connection with apparatus for the combustion
of liquid fuel in furnaces, and in order to reduce the calorific
intensity, it has already been proposed to spray the liquid
fuel by means of a quantity of air under pressure insufficient
for its complete combustion, anl then to gasify the spray by



zZ

P

dilution with hot combustion products, the mixture thus
formed being led through a tube'into the furnace. Accord-
ing to the present invention a burning mixture of undiluted
homogeneous producer gas and undiluted air sufficient for
its combustion is first set up, and the temperature effect of
combustion is then regulated by adding to the products of
this burning mixture a diluent consisting of incombustible
products of combustion. Fig. 1 is a longitudinal section of
a coal gas retort bench; and fig. 2 a transverse sectional
view of the same. (One claim.)

25013 (1913). Improvements in or Relating to the Treat-
ment of Metals, such as Copper or Iron or Coal or Fabrics
made of Organic Materials. J. A. McLarty, of 83, Dun-
vegan-road, Toronto, Ontario, Canada.—This process may
be applied to various substances, for example, metals such
as iron or copper, which when so treated acquire the pro-
perties of being rustproof, also of being suitable for use as
bearings, in that they will not heat up by friction, also the

hardness and density of copper, steel, or iron is increased.
This process may also be applied to fabrics made of organic
materials, and such materials when so treated become much
more stable. The invention consists essentially in treating
the slated materials while in a closed retainer, and while
said materials are maintained at a temperature below red
heat, with certain gases and vapours, which are produced by