900

THE COLLIERY GUARDIAN.

October 29, 1915.

table a. The connection of the arm i with the table a
involves a swivel joint, adapted to be tightened by a screw
action through the medium of a lever /, or the like. By
these means, the arm i can be adjusted in a horizontal
plane about its axis of pivotal connection with the table,
to therefore provide for the different angles of taper desired.
At a point in the vicinity of that end of the member which
is being subjected to the cutting operation, and on the side
of such member remote from that on which the rotating
disc b occurs, a member or slide is incorporated adapted to
be moved transversely of the table in order to advance the
work towards the disc. In the arrangement shown in the
drawings, this member takes the form of a vertical or
substantially vertical lever or arm k, adapted to oscillate
about a centre Z, which lever k may be furnished with a
weight m, and may be adapted for operation by a pedal n.
Upon depressing such pedal n, the upper extremity of the
arm k is caused to feed the work towards the cutters. In
cases in which it is desired to taper the extremity of an
article such as the board, in order to provide a A-shaped
extremity to the latter, instead of using the lever k and
pedal n, a plate or member o may be provided adapted to be
adjustably secured to the surface of the table. When this
plate o is in use, the member k may remain in its position
remote from the cutters; when the member k is in use, the
plate or member o may be entirely removed from the surface
of the table. In the arrangement shown, the plate o is
furnished with an L-shaped slot through which a securing
bolt is passed, which may be tightened to fix the member
o at different positions or inclinations. After the member
o has been appropriately fixed, the board is placed in posi-
tion upon the table, and upon an appropriately modified
form of carrier h, and the board is then fed longitudinally
as the cutting progresses, a similar operation being after-
wards effected in connection with the other side of the
board. In a modified embodiment of the invention, the
upper surface of the member o may be inclined, descending
towards the cutters, so that the board or the like is cut with
an inclined cut, or to a bevelled formation. (Six claims.)

18442 (1914). Improvements in Electro-magnetic Unlock-
ing and Unscrewing Apparatus for Miners' Lamps. 0.
Oldham, of Hyde-road, Denton, Manchester.—Is an improve-
ment in or modification of the invention forming the subject
of application for Letters Patent No. 2249/14, which related
to a machine for unlocking miners’ safety lamps and unscrew-
ing the bottom caps of the lamps. The present invention
relates to the means for separating the lamps from the magnet
pole after magnetically unlocking the lamp, and after unscrew-
ing the bottom cap of the lamp. In the said machine the
lamp is placed on a rotary plate or platform carried by a
support adapted to slide in a direct line towards and away
from the magnet pole. According to one example, the said plate
or platform is carried by a swivelling support, said support
being movable about its pivot from a position in line with the



b

fig. 2.







magnet pole to a position out of line with such pole. Accord-
ing to a further modification, the plate or platform is mounted
on a support adapted to slide in a direction at right angles
to the longitudinal axis of the magnet pole, or diagonally.
According to a further modification, the lamp plate or plat-
form may rise and fall, the necessary movement being
obtained by a spindle connected to the switch operating foot
lever. Fig. 1 illustrates a side elevation (partly sectional);
fig. 2 is a plan of a part of the upper portion of the machine,
such views showing the lamp plate mounted upon a swivel-
ling support; fig. 3 illustrates a like view to fig. 1, but show-
ing the rising and falling lamp plate support; fig. 4 illustrates
a like view to fig. 2, but showing the lamp plate mounted on
a support adapted to be moved in a direction at right angles
to the magnet pole. (Two claims.)

23165 (1914). A Method of Carrying and Condensing the
Volatile Gases Distilled from Carbonaceous Material.
J. R. H. Prioleau, and W. L. St. J. Prioleau, 1, Trafalgar
Square, Chelsea, London.—Relates to a method of carrying
and condensing the volatile gases distilled from carbonaceous
materials in <a retort, and the object is to obtain the several
gases quickly at the lowest temperature consistent with the
evolution of the said volatile matters without injury thereto,
and to obtain gases given off at different temperatures at
the same time. The invention is of special application to
the distillation and coking of peat. Means are employed
for continuously traversing the carbonaceous materials
through a hermetically closed single chamber receptacle, or
retort, the said retort being subject to surface heating only,
but having an ejector condenser, or a series of ejector con-
densers, directly and closely, but separately connected to the
interior of the retort, which condenser operates by means of
a non-condensible, or substantially non-condensible, gas at
a low temperature causing suction on the gas producing
retort at a given point, and causing immediate condensa-
tion of the gaseous matters thus drawn into the condenser,
by reason of the low temperature of the non-condensible
gas; by connecting the series of separate ejector condensers
to the gas producing retort at successive points in its length,
or by connecting thereto—either continuously or at intervals
—a separate condenser pipe, or chamber, substantially
parallel to the retort, different volatile matters distilled at
the several successive points, corresponding with the
temperature ruling at those points, may be withdrawn from
the retort simultaneously and their condensible portions
immediately recovered. Further, the drawing off of the
gases is carried out without them having to pass through
other zones of the retort, either hotter or colder, which is
a point of material advantage as such passage would sub-

ject them to “ cracking ” or decomposition conditions which
might alter them chemically, thus the resultant oils would
be different. Preferably a horizontal retort having a con-
veyor screw may be employed, and preferably also non-
condensible gas evolved from the carbonaceous material will
be used for the condensing element in the condensers, the

2.

Fit}/.

same gas being used over again after passing it through a
purifying and cooling apparatus, by means of a pump, or
other suitable mechanism. Fig. 1 is a sectional view of a
retort constructed according to the invention; and fig. 2 is
a section of one of the condensers. (Six claims.)

19299 (1914). Improvements in or connected with Rock
Drills. A. Robertson, of 207, Morris Green-lane, Bolton,
Lancashire; and J. Jackson, of 4, Brackley Villas, Little
Hulton, Bolton.—Has for its object to provide a simple and
efficient support or stand for supporting portable drills in
operation, and thereby enabling the drilling of perfectly
straight holes for the reception of hydraulic or other wedges
for breaking down the undercut coal or rock or holes for
other purposes. A drill support or stand according to the
invention comprises a bar of square or other suitable section
having one end adapted to be driven into the “ face,” and
its other end provided with a series of transverse holes, and
to be secured to an adjacent roof-supporting prop by means



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of a spike driven through one of said holes to support the
drill, which is provided with suitable guides or the like
whereby it can be travelled along the bar in a straight line
towards and away from the face. Instead of said guides,
there may be mounted on the bar a slidable cradle in which
the drill can be placed. Fig. 1 is an elevation and plan of
the drill-supporting bar; fig. 2 an elevation and section of
one of a pair of brackets for guiding the drill on the sup-
porting bar; fig. 3 a similar view of the other of the pair
of brackets; and fig. 4 a sectional view illustrating the
supporting bar in use. (Two claims.)

NEW PATENTS CONNECTED WITH THE
COAL AND IRON TRADES.

Applications for Patents.

14672. Luminous indicator. A. E. Hogg.

14706. Explosives. W. Rintoul, E. G. Beckett, and Nobel’s
Explosives Company Limited.

14756. Apparatus for running any kind of compressed air
motor. M. N. Staight.

14771. Manufacture of composition fuel. C. T. Hopkins.

14780. Instruments for surveying drill holes. C. B. Galvin.

14800. Separation of volatile products from solid carbonaceous
material. W. W. White.

14807. Boiler flues and steam generators. W. M. Greaves.

14809. Apparatus for atomising liquids, especially applicable
for supplying water under pressure in a spray
form for use with rock drills. W. E. Kimber.

14812. Devices for cutting rope and the like. H. G.
Cameron.

14821. Furnaces. I. Hall.

14830. Improvements in producer gas plants, particularly
applicable to suction gas plants. Sir K. I.
Crossley and F. Fielden.

14850. Working and construction of destructor furnaces and
the like. E. C. R. Marks. (Maschinenbau-
Anstalt Humboldt, Germany.)

14852. Receiver for the storage of steam. H. E. Steinberg.

14866. Explosives. Perchlorate Safety Explosives Limited,
and F. G. L. Johnson.

14880. Bearings for haulage rope rollers and the like. W. J.
F. Payne.

14919. Percussive engines. W. Mauss.

14920. Rock drills and method of operating same. W.
Mauss.

14932. Manufacture of explosives. Perchlorate	Safety

Explosives Limited, and H. Harris.

14950. Periscopic attachment for theodolites and other sur-
veying instruments. D. T. H. McQueen.

14976. Feed water heating apparatus or combined feed water
heating and boiler water circulating apparatus for
locomotive and other fire tube boilers. G. H.
Willans and E. S. Luard.

14978. Tools for cutting wire ropes or cables. T. R. R.
Ashton.

14991. Water tube steam generators. H. Walker.

15015. Drilling, boring, or similar machines. T. Utley.

Complete Specifications Accepted.

(To be published on November 11.)

1914.

21082. Explosive priming charges. Buell.

21405. Chucks for rock drills. Vaught.

22005. Power operated hammers. Davy Brothers Limited,
and Holmes.

23243. Regenerators for furnaces. Orth.

23921. Signalling apparatus for use in mines. Chalmers,
Black, and Black.

24449. Form of rope cap. Groves and Wharton.

1915.

535. Winding, sinking, and hauling engines. Richard-
son.

1765. Vertical centrifugal pumps having a constant level in
the supply chamber. Kamensky.

1849. Apparatus for separating substances of different
specific gravities, such as fine coal or ores and the
like. Draper.

1901. Chipping hammers with interchangeable heads.
Robinson.

2225. Connecting rods for engines, pumps, and the like.
Merryweather.

4400. Steam turbines. McLaren and Welsh.

4922. Apparatus for the production of valuable products
from refuse organic matter. Craney.

5104. Electric motor controllers. Igranic Electric Company.
(Cutler-Hammer Manufacturing Company.)

6496. Cooling towers. Schmidt.

9478. Method of making U-shaped pipe bends. Locomotive
Superheater Company.

10547. Railway rail joints. Schoelerman.

11288. Combined circulatory and main blower valve for
superheater locomotives. York.

11485. Process for the production of ammonia. Thorssell.

11891. Railway sleepers and means for securing the rails
thereto. Carey.

GOVERNMENT PUBLICATIONS.

*** Any of the following publication* may be obtained
on application at this office at the price named post free.

Board of Education : Statistics of Public Education in
Wales, Part 2, Financial Statistics, 1912-13, 7|d.

Consular and Trade Reports, 1914 : Portugal, Trade of
Goa, 1913-14, Id.; China, Kiukiang, 2jd.; Kiungchow, 2d.;
Wuhu, 2d.; Amoy, 2d.; Changsha, 2£d.; Muscat, 1913-14,
3d.; Japan, Formosa, 3d.; Portugal, Trade of Agriculture
of Southern Angola, IJd.; San Thome and Principe, ljd.;
Commerce of the Azores, 2d.; France, Trade of Pondicherry
and Karikal, l|d.; Persia, Trade of Khorasan, 2£d.; Egypt,
Trade and Commerce of the Consular District of Alexandria,
5d.; Peru, Trade of Iquitos, 2d.; Greece, Corfu, 2Jd.; Corea,
4d.; United States, Trade of Agriculture of the Consular Dis-
trict of Chicago, 4d.; Japan Trade, 7d.; Italy, Foreign Trade,
2}d.; Gambia, 2d.; Straits Settlements Report, 4d.

Friendly Societies* Annual Return, No. 3, 2|d.

Statutory Rules and Orders, 1915 : (No. 972), Customs
Order, l|d.

PUBLICATIONS RECEIVED.

First-Aid in the Laboratory and Workshop. By A. A.
Eldridge and H. V. A. Briscoe. London : Edward Arnold.
Price, Is. net.

Results of the Investigation of Six Lignite Samples
Obtained from the Province of Alberta (Canada Depart-
ment of Mines). By B. F. Haanel and J. Blizard.
Ottawa : Government Printing Bureau.

‘‘The Resources of Tennessee” (Vol. 5, No. 4), October;
“ Monthly Bulletin of the Canadian Mining Journal ”
(No. 42), October; ‘‘The American Mining Congress
Journal” (Vol. 1, No. 10), October, price 20c.; ‘‘Report
on the Salt Deposits of Canada and the Salt Industry,” by
L. Heber Cole (Canada Department of Mines); “ Bulletin
of the British Chamber of Commerce for Italy ” (Vol. 4,
No. 8), September.

Grimsby Coal Exports.—The official return of the quan-
tities of coal shipped from Grimsby during the week ending
October 22 shows that there was only one shipment to foreign
destinations, Dieppe taking 252 tons, compared with 32,238
tons to foreign ports in the corresponding week of last year.
Coastwise to Dagenham, 2,600 tons, and Gravesend, 180
tons, a total of 2,780 tons, against 475 tons in the corre-
sponding week of last year.

Hull Coal Exports.-—The official return of the exports of
coal from Hull to foreign countries for the week ending
Tuesday, October 19, is as follows :—Amsterdam, 638 tons ;
Aalesund, 25; Boulogne, 1,142; Copenhagen, 1,649;
Dunkirk, 2,180; Dieppe, 969; Drontheim, 51; Gefle, 1,460;
Guernsey, 598; Gothenburg, 7,631; Harlingen, 498;
Halmstadt, 749; Naples, 408; Oxelosund, 1,177; Rouen,
6,492; Rotterdam, 119; total, 25,786 tons. The above
figures do not include bunker coal, shipments for the British
Admiralty, nor the Allies* Governments. Corresponding
period, October 1914, total, 61,180 tons; corresponding
period, October 1913, total, 126,420 tons.