Improvements in and connected with Band Conveyors.
Year: 1891

page_text: Date of Application, 22nd Oct., 1891
Complete Specification Left, 21st July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Band Conveyors.
We, ARCHIBALD MCARTHUR and ALEXANDER ORKNEY, of City Buildings,
32 Cathcart Street, Greenock, in the County of Renfrew, North Britain,
Consulting Engineers, do hereby declare the nature of this invention to be as
follows:-
Our said invention has for its object, by improvements in, and connected with
a band conveyor, to enable the said band conveyor to discharge the material under
transport at any desired part of its course.
In carrying out our invention we reserve our right to use any suitable known
Inake of side chain,-to make the tilting boards hereinafter mentioned of any
suitable known material, as copper, iron, vulcanite, or timber in a natural or
manufactured condition, and to vary their form for convenience of manufacture,
or in event of the conveyor being laid otherwise than in a horizontal direction.
Described in detail. Figure 1, represents a side elevation, and Figure 2, an end
elevation of a portion of the band conveyor, in which A. are the side chains,
composed of pairs of alternately outer and inner flat links, kept apart by distance
washers, and joined together by pins B. and having between each pair of inner
links a supporting wheel C.
D. are the tilting boards, having end attachments, E. bolted or rivetted on, and
are hinged to chains by a prolongation of the pins B. through sockets in end
attachments.
F. are tilting wheels carried on axle G. and running with band.
These tilting wheels may be supported in a moveable hopper-shaped carriage, or
may be situated at certain predetermined points at which it is desired to discharge
the conveyor, and may be brought into or released from contact with the band by
any ordinary mechanical combination.
In operation, the tilting boards D. are carried along in the direction_indicated,
by the upper chains A¹ in an approximately horizontal position as at D', till the
cam-shaped portions of the end attachments E. engage the tilting wheels. F. when.
they are thrown on edge, as at D', discharging their burden, and continuing their
course in the inverted position D³.
After rounding the driving wheels they are carried backwards by the lower
chains A in position D, till when passing round return wheels, they fall con-
secutively back into position D', and again resume their forward motion.
Dated this 21st day of October 1891.
ARCHIBALD MCARTHUR.
ALEXANDER ORKNEY.
COMPLETE SPECIFICATION.
Improvements in and connected with Band Conveyors.
We, ARCHIBALD MCARTHUR and ALEXANDER ORKNEY, of City Buildings,
Greenock, in the County of Renfrew, North Britain, Consulting Engineers, do
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:—
Our said invention has for its object, by improvements in, and in connection
with, band conveyors, the discharging of the material under transport at any
desired point in their lineal extent.

page_text: In carrying out our invention we may use any suitable known make of side chain-
may make the tilting boards hereinafter described of any suitable material, or may
vary their form for convenience of manufacture, or the conveyance of material in
an upward or inclined direction.
These improvements are illustrated by the sheet of drawings left with the
Provisional Specification, on which Figure 1 represents the side elevation,―and
Figure 2, the end elevation,-of a portion of a band conveyor, and, described in
detail, are as follows:-
A, are the side chains, composed of pairs of alternately outer and inner flat
links, kept apart by ferules, or distance washers, and connected by pins B-and
having, between each pair of inner links, a supporting wheel, C.
D. are tilting boards, having end attachments, E. bolted or rivetted to them,--
and are hinged to chains by a prolongation of the pins B. as shewn,-or of the
supporting wheels' studs, passing through sockets in the end attachments.
Cam-shaped projections are formed on the end attachments, and are engaged
by the tilting wheels F. which are carried on the axle G. and run with the
band.
These wheels may be supported in an adjustable carriage, or may be situated
at such predetermined points as the material under transport should be discharged
at, and may be brought into action when so desired, by a suitable mechanical
arrangement.
In operation, the tilting boards D, are carried forward in the direction indicated,
by the upper chains A', in an approximately horizontal position, as at D' till the
cain-shaped projections of the end attachments E. come in contact with the tilting
wheels F. when they are thrown on edge as at D', discharging their burden, and:
continuing their forward course in the inverted position D³..
On reaching the driven end of the band, they pass round the driving wheels,
backwards to the return end of the band and upwards round the return wheels,
falling then consecutively back into their original positions D' and resuming their
forward motion.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. In a band conveyor, the improved combination of parts as described, and
for the purposes herein before set forth.
2nd. In a band conveyor, the application of a decking of rigid boards, with
projecting cams, connected to side chains, substantially, in. the manner, & for the
purpose specified herein.
3rd. In a band conveyor, the application of tilting wheels, in the manner and for
the purpose specified herein.
Dated this Twentieth day of July 1892.
ARCHIBALD MCARTHUR.
ALEXANDER ORKNEY.