Improvements in Elevators.
Year: 1896

page_text: Date of Application, 11th Aug., 1896
1002
PROVISIONAL SPECIFICATION.
Improvements in Elevators.
I, RICHARD HARVEY of 50 Wilson Street, Finsbury, in the County of London,
Engineer and Millwright, do hereby declare the nature of this invention to be as
follows:-
These improvements relate to elevators constructed for lifting and delivering grain>
flour, cement or other material to any height.
They consist of an endless steel wire rope, drawn tightly over two pulleys to said
rope are fixed a number of metal buckets.
To make the wire rope grip or bite the pulleys and also to make the latter rotate in
an even and uniform manner without jolting or jarring and thereby spilling the
material they are raising special shaped pulleys are required. Each pulley is divided
into several equal facets at its peripheral surface and as the rope revolves it adapts
itself to the shapes and produces the necessary grip for driving, the buckets being so
placed on rope that they just fit certain facets as they revolve
To allow the bolts which fasten the buckets to pass over the pulleys necessitates a
number of grooves running across the face of the pulley so that when the bolts pass.
round they form racks thereby stopping any liability the rope may have to slip..
There are also sides to the pulleys standing up about 11" to prevent the rope
running off.
To stop any chance of the rope twisting when running there is a special lug cast on
each bucket about five inches long and hollowed out to fit the rope, so that when these
pieces are revolving on the bucket they effectually stop the rope twisting by fitting
into the groove on the pulley.
The buckets are made in such a manner that they ensure easy delivery.
To fasten the buckets to the rope two U shaped bolts are used this fastening bites.
the rope and holds the bucket firin.
The elevators are enclosed in a thin metal casing so made that it can be taken down
or put up with a very small amount of labour being made in convenient pieces and
sections and bolted together in halves or otherwise.
Dated this 11th day of August 1896.
HERBERT HADDAN & Co.,
Agents for Applicant.
I, RICHARD HARVEY, of 50 Wilson Street, Finsbury, London, Engineer and
Millwright, 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:-
These improvements relate to elevators constructed for lifting and delivering grain,
flour, cement or other material to any height. They consist of an endless steel wire
rope, drawn tightly over two pulleys; to said rope are fixed a number of metal
buckets. To make the wire rope grip or bite the pulleys and also to make the latter
rotate in an even and uniform manner without jolting or jarring and thereby spilling
the material they are raising, special shaped pulleys are required; each pulley is

page_text: divided into several equal facets at its peripheral surface and as the rope revolves it
adapts itself to these shapes and produces the necessary grip for driving, the
buckets being so placed on the rope that they just fit certain facets as they revolve.
To allow the bolts which fasten the buckets to pass over the pulleys necessitates a
number of grooves running across the face of the pulley so that when the bolts
pass round they form racks, thereby stopping any liability the rope may have to slip.
There may be also sides or flanges to the pulleys standing up about 1 to prevent
the rope running off. To stop any chance of the rope twisting (if a single rope only
is used) when running there may be a special lug cast on each bucket about five
inches long and hollowed out to fit the rope, so that when these pieces are moving
with the buckets they effectually stop the rope twisting by fitting into the groove on
the pulley. I may however avoid twisting by using several ropes side by side
clamped by the bolts which secure the buckets, and when such ropes or a flat rope is
used as illustrated, the lugs are unnecessary.
The buckets are made in such a manner that they ensure easy delivery. To fasten
the buckets to the rope two U shaped bolts are used, this fastening embraces and
bites the rope or ropes and holds the bucket firmly. The elevators are enclosed in a
thin metal casing so made that it can be taken down or put up with a very small
amount of labour being in convenient pieces and sections, and bolted together in
halves or otherwise.
The construction is illustrated in the annexed drawings in which
Fig. 1 is an elevation partly in section and having parts removed, and Fig. 2 is a
similar side elevation partly in section of the improved elevator.
Figs. 3 4 and 5 illustrate the clamps by which the ends of the rope are connected
together.
A is the casing formed above and below of plates, A' A', bolted together at their
flanges and carrying spiders A2 for the bearings of the axles B B', the lower bearing
block being movable and adjustable by pressure screws C and intermediate springs C'.
The middle part of the casing is composed of side boards A³ and face plates A
fastened to them by screws. The casing carries also bearings for the shaft B2
carrying a pulley D and a pinion D' the latter gearing with a spur wheel D² on the
shaft B. Inside the casing the shafts B and B carry pulleys E for the rope F. These
pulleys may be round or facetted as described and are grooved at e, e, to engage the
bolts or fastenings G' of the buckets G so as to ensure grip on the rope F. Four
ropes F are shown (Fig. 2) forming a combined or flat rope and the bolts or
fastenings G of the buckets G embrace the four ropes and hold them as one.
The link H is formed of several flat plates H¹ pivoted together at H2 and having
passed through them bolts H3 with splayed heads which pass between the wires and
are secured by nuts H; the junction of the ropes is at Ĥ³.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of an elevator permitting of the use for carrying the buckets,
of a wire rope substantially as set forth.
2. The combination of the pulleys grooved to engage the bolts or fastenings of the
buckets, with a wire rope or combination of ropes, or wire rope band to which said
buckets are clamped by bolts or fastenings designed to engage the pulleys.
3. The combination with the cross grooved and facetted pulleys of a wire rope or
combination of ropes or wire rope band to which buckets are clamped by bolts or
fastenings designed to engage the pulley grooves.
Duted this 11th dan You 1907
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.