Improvements in Elevators.
Year: 1896

page_text: Date of Application, 1st May. 1896
Corrplete Specification Left, 1st Feb., 1897-Accepted, 27th Mar., 1897
Improvements in Elevators.
I, ROBERT BIRTWISTLE, trading as S. S. Stott and Co. of Laneside Foundry,
Haslingden, in the County of Lancaster Engineer, do hereby declare the nature of
this invention to be as follows:-
My invention relates to improvements in elevators adapted for raising sacks and
packages of various materials or bulky articles and delivering them at any point in
the height of the elevator as for instance on any floor of a building.
My improvements consist chiefly and essentially in the arrangement use and
application of a single adjustable delivery table or grid capable of being adjusted to
deliver at any point within the height of the elevator in substitution for a series of
separate delivery tables one on each floor or other point where it is required to deliver
the goods.
In carrying my improvements into effect I employ a stationary feed or delivery
table on which the articles to be lifted by the elevator are placed either automatically
by a travelling conveyor or by hand or otherwise. This stationary table is preferably
made concave on its upper surface which is composed of a double row of strong bars
projecting inwardly from the side frames leaving a free space or passage at or
about mid-width and extending from end to end of the table. On the elovator I
pivot any desired number of cradles each of which is formed of a series of bars
mounted on a shaft, the bars being curved upward at thoir outer ends to form a
hollow or concave cradle, and the bars and shaft being so arranged that they will
pass, when the elevator is in motion through the spaces formed for their passage in
the stationary feed table and lift the goods resting thereon.
The delivery table or grid is formed substantially in the same manner as the
stationary table just described in order to allow the cradles on the elevator to pass
through it; but it is made flat instead of hollow on its upper surface which is set
obliquely to the path of the travelling cradles in order to cause the goods to roll
off and out of the way as delivered. The delivery table is so mounted and geared
as to be capable of being wound from the bottom to the top of the elevator or to
any intermediate point where it may be required to deliver the goods and will remain
fixed and continue to deliver in that position until again adjusted.
Dated this 30th dor of Antil 1896
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in Elevators.
I, ROBERT BIRTWISTLE, trading as S. S. Stott and Co. of Laneside Foundry,
Haslingden, in the County of Lancaster Engineer, 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 :-
My invention relates to improvements in elevators adapted for raising sacks and

page_text: packages of various. materials or bulky articles and delivering them at any point in
the beight of the elevator as for instance on any floor of a building.
My improvements consist chiefly and essentially in the arrangement usel and
application of a single adjustable receiving and delivery table or grid capable of
being adjusted to deliver at any point within the height of the elevator in substitution
for a series of separate delivery tables one on each floor or other point where it is
required to deliver the goods.
In the accompanying three sheets of drawings-
Fig. 1 is a view of an elevator for raising sacks and other heavy articles and
delivering them at or upon any floor.
Fig. 2 is a plan view of part of Fig. 1,
Fig. 3 is a side elevation of the feed or receiving table, and
Fig. 4 is a plan view of part of Fig. 3.
Fig. 5 is a side elevation of the delivery table, and
Fig. 6 a plan view of part of Fig. 5.
In the drawings,-a is the feed table shown in Fig. 1 below the level of the
bottom floor 2 of the warehouse: to the upper corners of the frame or table a are
secured the ends of two preferably wire ropes or chains be which pass over two
small pulleys be respectively mounted near the top of the elevator, the ropes are
then each brought down on to a winch barrel e. The feed table a is preferably
made concave on its upper surface which is composed of a double row of strong
bars projecting inwardly from the side frames leaving a free space or passage at
about midwidth and extending from end to end of the table, see Figs. 3 and 4.
On the elevator chain f which passes over two pairs of chain wheels f f respectively
I pivot any desired number of cradles g each of which is formed of a series of bars
mounted on a shaft the bars being curved upward at their outer ends to form a
hollow or concave cradle and the bars and shaft being so arranged that they
will pass when the elevator is in motion through the spaces formed for their passage
in the feed and delivery tables. The cradle being of common construction is not
specially illustrated in the drawings.
The delivery table is formed substantially in the same manner as the feed or
receiving table and is shown detached in Figs. 5 and 6.
In these views, is the frame or prongs of the delivery table which is connected
preferably by wire ropes or chains j which pass over small pulleys ij mounted near
the top of the elevator; these ropes or chains come down to the bottom of the elevator
and are wound upon a winch barrel k, which may be placed in any convenient position
in the building.
In Fig. 1 this delivery table h is shown placed to deliver the goods from the
cradles g upon the fourth floor, the inclined prongs of the table h causing the goods
when deposited upon them to roll or slide off on to the floor or upon a table or its
equivalent..
A winch handle 1. when turned by hand, drives a chain or equivalent which
passes over two chain wheels mm' the latter of which carries a worm which gears
into a worm wheel to turn the winch barrel k in order to raise and adjust the
delivery table h.
A similar handle n on a chain wheel o conveys motion by a chain n' to a chain
wheel o' which carries a worm in gear with a worm wheel e' on the barrel e on which
the chains b and c are wound so that by turning the handle n the barrel e will be
turned and the feed table a raised to any floor or point desired in order to receive
goods to be carried forward by the cradles g, and deposited on the delivery table h
at the point desired, which table can be readily moved to deliver goods upon any
floor by turning the handle 1. If preferred either or both the winch barrels k and e
might be turned by power in place of by hand as described.
When boxes have to be carried on the elevator the prongs of the feed and
delivery tables and cradle can be straight in place of being curved as shown and
described.
¡I bave described both the receiving and delivery tables as being movable but it is

page_text: obvious that a stationary feed or receiving table might be employed in combination
with a movable delivery table or vice versa.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with an elevator, of a movable table supported in such a
manner that it can be raised and lowered so as to deliver goods upon any floor of
the building in which the elevator is fixed, substantially as and for the purposes
described.
2. The combination with an elevator, of a movable table supported in such a
manner that it can be raised and lowered so as to receive goods upon any floor of
the building in which the elevator is fixed substantially as and for the purposes
described.
3. The combination with an elevator, of movable receiving and delivery tables
supported in such a manner that they can be raised and lowered to any floor of
the building in which the elevator is fixed substantially as and for the purposes
described.
4. The general combination and arrangement of parts embodying my improve-
ments in elevators substantially as herein described with reference to the accompanying.
drawings.
Dated this 30th day of January 1897.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.