An Improved Suction Device for Attaching Articles to Surfaces.
Year: 1891

page_text: Date of Application, 7th Aug., 1891
Complete Specification Left, 16th Apr., 1892-Accepted, 14th May, 1892
PROVISIONAL SPECIFICATION.
An Improved Suction Device for Attaching Articles to Surfaces.
WARWICK BROOKES of 350 Oxford Street Manchester in the County of
Lancaster Photographer do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improvement in the construction of suction devices.
such as are employed for attaching various articles to glass or other surfaces
by atmospheric pressure alone without the aid of screws or such like mechanical
contrivances.
These suction devices have always hitherto been made in the form of a perfect.
disc or cup either entirely made of india rubber or having a single india rubber lip..
The object of my invention is so to form the suction device that the central
portion of the glass or other material to which it adheres open for inspection.
or otherwise and thus the device can be employed for a number of useful purposes.
to which the ordinary devices are not applicable.
I make the suction device of india rubber or other similar material but of an
annular or other open form, and with a groove round the face thereof forming a
recess surrounding the edge of the object to which the said device is to be applied,
and thus when the face of this device is pressed against a glass or similar surface
the air will be expelled from this recess and cause the india rubber to adhere to the.
said surface by suction or atmospheric pressure.
The device may be applied to a variety of purposes, for example it may be placed
at the open end or edge of a focussing glass or to any other magnifier, lens or glass
so that either the focussing screen or other surface to which the device adlieres
may be inspected or light can be admitted through the opening in the suction.
device.
It will be evident that instead of having an annular or other similar air recess, a.
plain annular or other lip of india rubber may be fixed round the edge of the-
suction device the central portion being formed of transparent glass to complete the
suction chamber.
The surface to which the device adheres will then be visible through the central.
glass portion of the said device.
The device may be applied to both ends of a tube if desired.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Suction Device for Attaching Articles to Surfaces.
I WARWICK BROOKES of 350 Oxford Street Manchester in the County of
Lancaster, Photographer, 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 :-
This invention relates to an improvement in the construction of suction devices
such as are employed for attaching various articles to glass or other surfaces by
atmospheric pressure alone, without the aid of screws or such like mechanical
contrivances.
These suction devices have always hitherto been made in the form of a perfect.

page_text: 1
opaque dise or cup either entirely of india rubber or having a single india
rubber lip.
The object of my invention is so to form the suction device that the central
portion of the glass or other material or surface to which it is caused to adhere, is
open for inspection or otherwise, and thus the device can be employed for a
number of useful purposes to which the ordinary suction devices are not applicable.
The nature of my invention and the manner in which the same is to be per-
formed or carried into practical effect will be readily understood on reference to
the sheet of drawings hereunto annexed and the following explanation thereof.
The drawing illustrates by way of example the application of my invention to an
ordinary focussing glass as employed by photographers.
Fig. 1 is a section, Fig. 2 a side elevation and Fig. 3 a face view of a focussing
glass with my improved suction device shown as applied thereto.
Figs. 4, 5, and 6 are similar views of a modification thereof hereinafter more fully
referred to.
In both cases a represents part of the ground glass focussing screen of a
photographic camera, 6 the ordinary focussing tube and lens, and c is the suction
device, which I make of india rubber or other similar material but of a tubular or
other open form, and with an annular lipped grooved round the face thereof
forming a recess surrounding the edge of the object or portion of the glass screen a
which it is desired to view through the said lens, and thus when the lipped
face of this device e is moistened and pressed against the glass or similar surface
the air will be expelled from this lipped recess, and cause the india rubber to
adhere to the said surface by suction or atmospheric pressure, thus leaving both
hands free.
A suction device of this form may be applied to a variety of purposes, for
example, it may be placed at the open end or edge of a focussing glass as shown,
or to any other magnifier, lens, or glass so that either the focussing screen or other
surface to which the device is caused to adhere may be inspected or light can be
admitted through the opening in the suction device.
じ
It will also be evident that instead of having a double lipped annular or other
similar air recess, a plain annular or other lip of india rubber (see Figs. 45 and 6)
may be fixed round the edge of the suction device the central portion being formed
of transparent glass to complete the suction chamber, so that the surface to which
the device adheres will still be visible through the central glass portion of the
said device.
.
I may here remark that the improved suction device may be applied to both ends
of a tube if desired..
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 :-
First. The improved suction device for attaching articles to surfaces made with
a double annular lip and an open centre substantially as hereinbefore described and
illustrated with reference to Figs. 1, 2 and 3 of the annexed drawings, and
Secondly claim the improved suction device for attaching articles to surface
made with a single annular lip enclosing a disc of glass or other suitable transparent
médium to complete the suction chamber substantially as hereinbefore described and
illustrated with reference to Figs. 4 5 and 6 of the annexed drawings.
Dated l 1
זי
1000
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.