Improvements in or connected with Lifts for Buildings, Warehouses or the like.
Year: 1899

page_text: Date of Application, 6th Nov., 1899
Complete Specification Left, 2nd Aug., 1900-Accepted, 22nd Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Lifts for Buildings, Warehouses
or the like.
I, FREDERICK TOYE, of 3, Maryland Road, Chitt's Hill, Wood Green, in the
County of Middlesex, Gold Laceman, do hereby declare the nature of this inven-
tion to be as follows:-
It is generally known that the well in which the cage of a lift travels up
and down constitutes a great source of danger in the case of a fire breaking
out in the lower storeys of the building in which the lift is used, inasmuch
as such well forms a shaft through which an upward draft would pass in the
case of fire, thus greatly assisting the spread of the conflagration, and affording
ready means for the fire to be communicated from one storey to another, so that
the whole building is frequently completely gutted in spite of all efforts to
check the conflagration
The object of this invention is to obviate this difficulty, and it consists broadly
in providing hinged flaps on each floor of the building and connecting the
whole of same together, so that they can be raised and lowered simultaneously.
These flaps are of fireproof material and formed to completely close the opening
of the well when lowered, while when raised they turn back on their hinges
so that they occuny a vertical position flush with the side of the well, and con-
Bequently present no obstacle to the travel of the cage up and down.
It is intended that an attendant, when the building is first opened, should
by a single movement open the whole of the flaps, so that the lift will then be
ready for use, and similarly that he should close such flaps when the building
is shut up at night (or when the lift 18 no longer required to operate for a
certain time), so that all communication through the well with the different
floors shall be entirely closed.
It will be readily understood that various means may be employed for con-
necting the flaps on the different floors together, and lifting or lowering them
simultaneously.
A suitable method of effecting this consists in mounting a vertical rod or bar
just outside the well and extending from the bottom to the top of the building,
and which is capable of sliding up and down when actuated by any suitable
means This rod or bar is fitted with a projection (preferably carrying a roller)
at a point corresponding with each floor of the building, such projection engaging
a cam groove formed in a part pivotted at a stationary point a short distance
above each of the flaps A guide is provided on the top of each of the flaps,
and with it engages a projection (also preferably provided with a roller) carried
at the forward end of the pivotted part in which the cam groove is formed.
The action is as follows.
If the sliding bar or rod is raised, the projection thereon will cause the
pivotted part in which the cam groove is formed to turn on its pivot, the pro-
The turning of the
jection on such rod or bar working along the cam groove
pivotted part, through the projection at its forward end working in the guide

page_text: on the top of the flap, will cause the latter to turn back on its hinges, and thus
leave the well of the lift open from top to bottom
The reverse action will of course lower the whole of the flaps simultaneously,
and so cut off the connection between the different floors of the, building.
The arrangement described will permit or enable the flaps to remain firmly
either in their raised or lowered position, without any chance of then becoming
shifted, unless operated through the sliding rod
It will be readily understood that the' sliding 1od or bar may be raised and
lowered by any suitable means, either mechanical or otherwise, and in the case
of hydraulic lifts the hydraulic pressure may be utilised for actuating such 10d
or bar by simply operating a suitable valve.
Dated this 6th day of November 1899
ALLISON BROS.,
Agents for the Applicant
COMPLETE SPECIFICATION.
Improvements in or connected with Lifts for Buildings, Warehouses
or the like.
I, FREDERICK TOYE, of 3, Maryland Road, Chitt's Hill, Wood Green, in the
County of Middlesex, Gold Laceman, do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement..
It is generally known that the well in which the cage of a lift travels up
and down constitutes a great source of danger in the case of a fire breaking
out in the lower storeys of the building in which the lift is used, inasmuch
as such well forms a shaft through which an upward draft would pass in the
case of file, thus greatly assisting the spread of the conflagration, and affording
ready means for the fire to be communicated from one storey to another, so that
the whole building is frequently gutted in spite of all efforts to check the
conflagration
The object of this invention is to obviate this difficulty, and it consists broadly
in providing hinged flaps on each floor of the building and connecting the
whole of same together, so that they can be raised and lowered simultaneously.
These flaps are of fireproof material and formed to completely close the opening
of the well when lowered, while when raised they turn back on the hinges
so that they occupy a vertical position flush with the side of the well, and con-
sequently present no obstacle to the travel of the cage up and down.
It is intended that an attendant, when the building is first opened, should
by a single movement open the whole of the flaps, so that the lift will then be
ready for use, and similarly that he should close such flaps when the building
is shut up at night (or when the lift is no longer required to operate for a
certain time), so that all communication through the well with the different
floors shall be entirely closed
It will be readily understood that various means may be employed for con-
necting the flaps on the different floors together, and lifting or lowering them
simultaneously
A suitable method of carrying my invention into effect is illustrated in the
accompanying drawings in which
Fig 1 is a vertical section through the well of a lift showing the hinged flaps
for closing auch well at the level of each floor in their lowered position
Fig 2 is a horizontal section through the well
1

page_text: Fig. 3 also a vertical section showing the hinged flaps in their raised position,
and
Fig 4 is a horizontal section through Fig 3
In these drawings A is a vertical rod or bar mounted just outside the well
and extending from the bottom to the top of the building, and which is capable
of sliding up and down when actuated by any suitable means This rod or
bai A is fitted with a projection B (preferably carrying a roller) at a point
corresponding with each floor of the building, such projection engaging a cam
groove formed in a part C pivotted at a stationary point d a short distance
above each of the flaps D A guide E is provided on the top of each of the
flaps D, and with it engages a projection (also preferably provided with a
roller) carried at the forward end of the pivotted part C. in which the cam
groove c 18 formed
The action is as follows
-
If the sliding bar or rod A 18 1aised or moved upward, the projection B
thereon will cause the pivotted part C in which cam groove 18 formed to turn
on its pivot d, the projection B on such rod or bar working along the cam
gioove. The turning of the pivotted pait C, through the projection e at its
forward end working in the guide E on the top of the flap D, will cause the
latter to turn back on its hinges F, and thus leave the well of the lift open from
top to bottom
The reverse action will of course lower the whole of the flaps D) simultaneously,
and so cut off the connection between the different floors of the building
The arrangement described will permit or enable the flaps D to remain firmly
either in their raised or lowered position, without any chance of then becoming
shifted, unless operated through the sliding rod A
It will be readily understood that the sliding iod o1 bar A may be raised and
lowered by any suitable means, either mechanical or otherwise, and in the case
of hydraulic lifts the hydraulic pressure may be utilised for actuating such iod
or bar by simply operating a suitable valve
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
-
1 In a lift the combination with the well thereof of a set of hinged flaps,
one situated at the level of each floor of a building, and the whole connected
together so as to 11se and fall simultaneously, and of suitable means for operating
such flaps, substantially as specified
2 In a lift the combination with the well thereof of a set of hinged flaps,
one situated at the level of each floor of a building, and the whole connected
together by a rod capable of being raised and lowered by any suitable means,
and having a projection at points slightly above the level of each floor, such
projection engaging a cam groove in a hinged part, the forward end of which
is also provided with a projection engaging a slide on the top of each flap, all
substantially as specified, and as illustrated in the accompanying drawings
Dated this 2nd day of August 1900.
ALLISON BROS.,
Agents for the Applicant