132

THE COLLIERY GUARDIAN.

July 21, 1916.

ABSTRACTS OF PATENT SPECIFICATIONS
RECENTLY ACCEPTED.

1846 (1915). Improvements in Briquetting Machines. C.
Korte, of 10, Avenue-crescent, Leeds.—Relates to briquetting
machines wherein mechanical compressing devices are
employed, in conjunction with hydraulic mechanism for
relieving the pressure. Fig. 1 is a side elevation; fig. 2 a
front elevation of the parts shown by fig. 1 as seen in the
direction indicated by the arrow a; and fig. 3 is a plan of
the parts shown by figs. 1 and 2. A indicates the base upon
which the upper parts B forming the framework of the
machine, are mounted. In the upper part of B lateral open-
ings 2 are formed on each side, so that arms 3a and 3b of a
cylinder 3 may take into them and be guided thereby as they
are moved in a vertical path hereinafter described. Con-
nected to these arms are the connecting rods 4, 4a, actuated
by the cranks 5 and 5a on the crank shaft 6, carrying the
driving wheels 7 and 7a, which gear with wheels 8 and 8a
on the cross shaft 9, on which a driving wheel 10 is fixed to
mesh with a pinion wheel 11 on the main driving shaft 12,
on which the driving pulley 13 is fixed. On the other end of



-27*

-tti

"

4/-

?-6r

2+

----

34$



the shaft 12 is a balance wheel 13a. Formed centrally upon
the same shaft 6 is another crank, which engages with a
sliding block and reciprocates same vertically. In the
cylinder 3 is a piston 17 carrying a pressing tool arranged to
take into the mould formed in the rotary die plate 19. On
the upper end of the sliding block is another pressing tool
which also enters one of the moulds, thus as this latter
pressing tool enters the mould the first pressing tool will
simultaneously enter the same mould by moving downwards
so that the granulated substances contained by said mould
will be pressed evenly between them. The piston 17 is
forced in a downward direction by a spring 17a within the
cylinder 3, which also contains a liquid (preferably oil), so
that as the piston descends to compress the contents
of the mould said liquid withstands the pressure. Leading
through the end of the cylinder 3 is an opening, within
which a double valve is mounted. These two valves are
kept upon their settings by a spring acting against a washer
fixed upon the shank of the inner smaller valve. Beyond
the end of the cylinder 3 a cavity or vessel 21 is mounted so
that any oil or liquid escaping from the cylinder 3 through
the opening may enter said vessel 21. Mounted above the
valves is a lever 22, the bearings for which are forced in a
downward direction by the recoil of a spring mounted within
the bearings 22b, one end of said lever 22 having depending
from it a rod, while the other end is connected to a ram 23.
This ram 23 extends from a piston acting within a cylinder
24, to which the pressure liquid from the cylinder 3 is con-
ducted through a pipe, which also connects said pressure
liquid to a pressure gauge 25. The liquid as it passes from
the cylinder 3 to the cylinder 24 has to pass beyond a valve
which is held open by a lever 27 when the desired pressure
in the cylinder 3 is reached and has been released. The
piston working within the cylinder 24 is forced in a down-
ward direction under the pressure of the two springs 24a,
24b, which are mounted upon screwed rods, upon which the
wheel nuts 24e, 24/ are mounted, in order that said springs
may be increased or diminished in pressure to limit or regu-
late the maximum pressure that has to be exerted upon the
briquettes being produced. When the mould is brought
beneath and above the pressing tools the operating cranks
commence to move these tools so that they enter said mould.
In doing this the cylinder 3 is caused to descend and the
upward pressure of one pressing tool and the resistance of the
substances within the mould as the cylinder is drawn in a
downward direction by its connecting rods, and causes the
liquid within the cylinder 3 to be placed under pressure and
act upon the piston within the cylinder 24, in order to force
said piston in a vertical direction against the tension springs
24a, 24b. When this pressure has reached a point where it
overcomes said springs, it commences to move the rod 23
vertically, and by suitable means relieves the pressing tools
and mechanism of the excessive pressure when the proper
limit has been reached. On the pressing operations being
completed, and the pressure on the liquid in the cylinder 3
being relieved, a valve is closed by the recoil of its spring,
thus the liquid within the cylinder 24 will be imprisoned
therein, and consequently the relief valves remain open to
permit the liquid that had previously escaped from the
cylinder 3 to the vessel 21, to return to the cylinder 3. This
latter then commences to rise (the piston 17 rising therewith),
and ;in order to enable the liquid imprisoned in the cylinder
24 to escape therefrom, means are provided to open a passage
to the cylinder 3. Means are also described reducing the
speed at which the main crank shaft revolves as the pressure
on the briquette increases and for feeding the material to the
moulds. (Five claims.)

7007 (1915). Improvements in Apparatus for Coaling
Vessels. L. A. de Mayo, of Pier 62. North River, New
York, U.S.A.—Relates to conveyor systems for loading coal
into vessels by means of a flexibly suspended conveyor of the
type in which an endless chain of buckets is enclosed within
a housing open at the bottom, the chain of buckets being
driven by a motor portable with the conveyor, and the
material being raised by the buckets and discharged Laterally
from the housing. It comprises in combination a portable
conveyor element consisting of an endless chain of buckets
enclosed in a housing having an opening at the bottom, a
power unit movable with the conveyor element for driving the
buckets, means for suspending the conveyor element verti-
cally to rest upon the material to be loaded, and universally
jointed means adjacent the top of the housing for conveying
the material laterally of the conveyor. The lateral conveying
means may comprise a portable belt conveyor adapted to be
extended partially into the side of the vessel, or the lateral
conveying means may comprise a discharge chute joined to
the housing with a ball and socket joint, and adapted to be
extended to a receiving spout positioned for instance in a
port hole of a vessel, said chute serving to discharge the
material without the escape of dust in the region of the
joint. The discharge chute is intended to be used where the
material is to be discharged directly to a position lower than
the point of connection of the chute with the housing.
The drawing is a general sectional elevation of the apparatus
at work in a typical situation. The vessel 10 to be coaled
from the barge 11 alongside has port holes 12 in its
sides through which the coal is discharged into the bunkers
by the self-contained, portable, self-driven, vertical con-
veyor 13, which is suspended by a block and tackle 14, from
a boom 15, mounted on a mast 16 in the barge. The elevat-
ing mechanism consists of an endless run of buckets, passing
over an upper drum near the top of the elevator, and a lower
drum mounted near the bottom. The drums each comprise
two spaced sprocket wheels, mounted upon a shaft and united
by tie rods, and are themselves formed with notches, in
which engage pintles forming extensions of pins which
pivotally join the buckets and adjacent plates. Thus, when
one of the drums is driven, it actuates the endless chain of
buckets which dig their way into the coal and elevate the
same. The drum is driven by an enclosed electric motor
mounted in the framework of the elevator. To prevent the
coal dust from escaping during the raising and discharge of
the coal, the entire conveyor, including the endless chain of
buckets and the driving means, is enclosed in a casing which
also serves to guard against the dropping of any pieces of
coal from the buckets during the course of their travel. To
prevent sagging of the endless chain, guides are provided
consisting of angle irons attached to the interior walls of the
casing, the ends of the angle irons being flared so as to
facilitate the entrance and exit of the pintles from the guides.
For raising the conveyor to move it from point to point,
mechanism is mounted upon the conveyor casing, rendering
it independent of any external actuating devices. Thus, the
fall 37 of the tackle 14 is connected to a sheave driven by an
Electric motor on a suitable bracket on the exterior of the
casing. To keep the chain of buckets taut, means are pro-
vided for bodily moving the lower drum away from the upper
drum, thus taking up any wear which might cause the chain
or belt to stretch. The elevator casing rests upon the coal
in the barge. To permit freedom of movement of the casing

%

and at the same time to give free play to the buckets, the
casing is formed with feet at the corners thereof, upon which
the casing rests on the heap of coal. The bucket is formed
with an upwardly inclined bottom and a vertical side wall,
from which point the lateral sides incline downwardly to the
rear wall. The hinged portions of the buckets and of the
plates are staggered, and thus a maximum strength of joint
is obtained. As the bucket turns over, any coal which may
spill by reason of the turning movement will be deposited
upon the plate in advance of the bucket, and will be dis-
charged together with the coal in the bucket. The inclined
bottom portions of the buckets also serve to properly deflect
the coal as the latter is discharged, as will be readily under-
stood. After the coal is discharged from the buckets it
passes into a chute, which conducts the coal through the
port hole in the vessel. A suitable hood encloses the dis-
charge opening in the elevator casing. The chute is joined
to the housing by a ball and socket joint 58, which enables the
chute to be swung to any desired position vertically or hori-
zontally. The chute may also be made extensible to com-
pensate for the drop of the elevator as it digs its way into
the coal. The various sections may be thus telescopically
mounted and extended or withdrawn by means of a block
and tackle connecting the respective sections. After the coal
is deposited through the port hole, it is necessary to distri-
bute the same to the desired bunkers. This may be accom-
plished by means of horizontal conveyors 62 and 63 arranged
in tandem, and preferably suspended by block and tackle 64
and 65. They may be extended or contracted by varying
their relative longitudinal position. Each of these horizontal
conveyors may consist of a travelling belt 66 driven by
pulleys 67 and supported by intermediate rolls 68. Electric
motors are mounted upon the framework of these conveyors
and suitably geared to the pulleys, thus making each unit
self-driven. (Eleven claims.)

9932 (1915). Apparatus for Mechanically Moving or
Handling Material in Bulk. A. Holland, of 26, Roxburgh-
street, and E. R. Royston, of Tower Building, Water-street,
Liverpool.—Has reference to apparatus for mechanically
moving or handling material in bulk, wherein a bucket or
like elevator works above the surface of a disc or discs or the
like, and elevates and delivers the material at the desired
level. The disc receives the material at one point or sector,

and conveys it by its rotation to a part away from same,
where the lowermost buckets, etc., of the elevator work
above the disc, so that the buckets, etc., as they sweep over
the upper surface of the disc at this point move into the
circular stream, moved by the disc, which is being revolved
towards them, the stream being practically equal in width
to the full width of the buckets or the like. Figs. 1 and 2
are side elevation and end view respectively. In this
construction, the carriage consists of a simple rectangular (or
other shaped) frame 1, having at one side, within it, the
elevator 2; and beyond this, inside the frame, is the vertical
'axle 3 of the disc 4, which may be driven through gearing 5
from the horizontal shaft 6, which drives the elevator chain
7, or equivalent lifting mechanism, as the case may be; and



the driving of the shaft 3 may be effected from a distance,
mechanically, by a chain drive, etc., and the driving
mechanism may also be adapted to propel the apparatus
along the surface by gearing it up to one or more of the
travelling wheels 8, in any known suitable way. The disc 4
projects beyond the carriage frame, and will be of substan-
tial size, say, several feet in diameter; and there may be
guides 10 on the carriage of the part where the lower portion
of the elevator which lifts the material from the disc, comes,
so that the material which is taken on to the part of the disc
which enters and w’orks in the bulk, will be properly guided
near the outer edge of the disc, and near its centre, to form
it into a conveyed stream to the buckets, etc., for taking it
off the disc and elevating it. The elevator will be adapted
to be moved and held in different inclinations about the
driving shaft 6, and the apparatus may be adapted to be held
stationary in any position. The elevator may be of a type
which is telescopic, extensible, or articulated, or so con-
structed as 'to be capable of being used on barges or ships,
where it has to pass under transverse beams or the like, from
which it has to deliver coal, salt, grain, or other material.
(Five claims.)

11197 (1915). Rock Drill Chucks. G. Prideaux, of
Hedley, British Columbia.—Relates to a rock drill chuck of
the type wherein the tapered end of the drill shank fits into
a bushing inserted in a tapered socket in the enlarged end of
the piston rod of the drilling machine. The taper of the
outer surface of the bushing which fits the socket is more
acute than the taper of the inner surface which corresponds
to the drill shank, so that while the bushing can be removed
when required it is not liable to be displaced during the

/7g. 2

removal of the drill from the socket Fig. 1 is a vertical
section in the plane of the cotter hole, and fig. 2 is a side
elevation, 2 representing the end of the piston rod of the
drilling machine, which is enlarged, as at 3, to receive a
tapered bushing 4 fitting a correspondingly tapered shank.
The taper 6 of the bushing which fits within the enlargement
3 of the piston rod is more acute than that 7 which receives
the tapered end of the drill shank, so that the bushing will
retain a tighter hold in the piston end than that of the drill
end in the bushing, and will not be liable to be driven out
while the drill is being driven out. Across the inner end of
the socket in the enlargement 3 a cotter hole 8 is provided, in
which cotter hole a tapered cotter 9 may be driven to remove
the drill, the upper end of which projects beyond the lower
edge of the cotter hole. The upper edge of the cotter 9 and
the corresponding edge of its cotter hole are preferably
rounded, as at 10, that there may be no line of weakness from
the back edge of the cotter hole to the change of dimension
of the piston rod end. The inner end of the bushing 4 does
not project into the cotter hole so that it will not be directly