provements in Door Springs and Checks
Year: 1895

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c Act, 1883), as required by
the decision of the Comptroller General of the 31st day of January 1896
PROVISIONAL SPECIFICATION
Improvements in Door Springs and Checks
I, PHINEHAS EDWARD AYTON of the Firm of Thomas Pemberton and Sons
of Livery Street, in the City of Birmingham, Manufacturing Brassfounder, do
hereby declare the nature of this invention to be as follows
-
This invention relates to combined door springs and checks, or to checks and
springs alone, and consists in a detail improvement in the means of connecting the
outer end of the levering arm of the spring or the check to the door, and it is
performed by an inclined link or a pur of obliquely directed links jointedly
connected to the bracket on the door and the fore end of the levering arm
respectively
In carrying out one form of my invention, I enclose within a barrel sleeve,
supported by a bracket attachedly connected to a transom or door frame, a spring
which encircles a central axis, whilst a double armed lever is made integral with
or fast to the spring and barrel sleeve aforesaid The arm of this lover, which is
double sided or of a frame construction, has a space or clearance between the
members for the check to come centrally within, whilst the outer or fore end of
this frame lever is connected to the door through the intervention of a forked and
obliquely disposed link, whilst one end of the piston rod of the check (which is of
the pneumatic order) is made fast to the inside fore end part of the frame arm or
lever and the other end carries piston working within the barrel of the check,
the rear of which barrel is binged or jointedly connected to an attachment bracket
secured to the door The check is provided with the usual air inlets and outlets
common to this class of check, and has its piston rod passing through the fore
end cap
When the door is opened, the angular movement made by the arm of the spring
Is allowed for by the rising and falling of the link, whilst the check is made to
follow the same or a like angular movement as the arm of the spring by being
Jointed at its rear
It is understood that door springs are not usually directly connected at their
fore ends to doors, but only bear upon the same through the medium of a whee!
or roller which traverses along the plane of the door as the same opens and closes
I also wish it to be understood that I do not limit myself to the kind of spring
described, as other forms may be employed with a like or nearly the same effect

page_text: The application of my invention to checks alone or to springs alone differs in no
essential respect from its application to a combined door spring and check as
hereinbefore described
Dated the 20th day of Am. 1905
Improvements in Door Springs and Checks
I, PHINEHAS EDWARD AYTON of the Firm of Thomas Pemberton and Sons of
Livery Street, in the City of Birmingham, Manufacturing Brassfounder, do hereby
declare the nature of this invention and in what manner the sɩme is to be
performed to be particularly described and ascertained in and by the following
statement
-
This invention relates to combined door springs and checks, or to checks and
springs alone, and 1>
in improvement upon Letters Patent granted conjointly to
Walter Alfred Gill and myself and dated the 3rd day of October 1894 and
numbered 18700 My present invention consists in detul improvement in the
means of connecting the outer end of the levering arm of the spring or the check
to the door, and it is performed by in inclined link or a pair of obliquely directed
links jointedly connected to the bi icket on the door and the fore end of the levering
arm respectively
In carrying out one form of my invention, I enclose within a barrel sleeve,
supported by a bracket attachedly connected to a transom or door frame, a spring
attachedly connected at its ends to the arm and the attachment bracket respectively
The levering arm which is double sided or of a frame construction, has a space or
clearance between the members for the check to come centrally within, whilst the
outer or fore end of this fiame lever is connected to the door through the inter-
vention of a forked and obliquely disposed link, whilst one end of the piston rod of
the check (which is of the pneumatic order) is made fast to the inside fore end part
of the frame arm or lever and the other end carries a piston working within the
barrel of the check, the rear of which barrel is hinged or Jointedly connected to
an attachment bracket secured to the door The check is provided with the usual
air inlets and outlets common to this class of check, and has its piston rod passing
through the foro end cap
When the door is opened, the angular movement made by the arm of the spring
1s allowed for by the rising and falling of the link, whilst the check is made to
follow the same or a like angular movement as the arm of the spring by being
Jointed at its rear
Figure 1 of the accompanying drawings represents in front elevation, a combined
door spring and check constructed according to my invention
Figure 2 represents an edge view of the sume, in which the full lines show the
position of the spring and check when the door is closed and the dotted lines is
position when the door is open
The same letters of reference indicate corresponding parts in the several figures
of the drawings
a is the barrel, having enclosed within it, a spring a¹, with one end secured to
the attachment bracket a³ attached to the frame d, of a door, and with the other
end secured to the joint or eye b', of a double armed or frame bracket b, whose fore
end 62, is connected to the hinged door e, by a bracket e¹, through the medium of a
link or jointed coupling f, jointed by pins f¹, f, to the bracket and arm end
respectively and to which latter the outer end 9', of the piston rod 9, 18 jointedly

page_text: connected at g, whilst the other end of the said piston rod, carries a piston 9*,
working within an air-check cylinder h, jointed at its back end h², to a bracket h¹,
made fast to the door e, jointed at e, to the framing
I also wish it to be understood that I do not limit myself to the kind of spring
described, as other forms may be employed with a like or nearly the same effect
The application of my invention to checks alone or to springs alone differs in
no essential respect from its application to a combined door spring and check as
hereinbefore described
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 I am
aware that the use of a link for connecting the outor end of the arm of a door spring
to the door has previously been proposed, and I make no claim to such combination,
apart from the special constructions I have described, but what I claim is -
First In combined door springs and checks, coupling or connecting the outer
end of the levering arm and piston rod end to the door through the medium of a
link or pair of links, substantially as described and set forth
Second In door checks, coupling or connecting the outer end of the piston rod
to the door through the medium of a link or links, substantially as described and
set forth
D
10
1 T 1905
PHINEHAS EDWARD AYTON,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant