Year: 1887

page_text: Date of Application, 17th Sept., 1887
Complete Left, 18th June, 1888
Complete Accepted, 20th July, 1888
I, PHINEHAS EDWARD AYTON of the Firm of Thomas Pemberton and Sons of
Livery Street Birmingham, in the County of Warwick, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to combined door springs and air checks, in which the former,
is designed to reclose a door, when opened, while the latter is arranged to prevent the
said door from slamming, when closed; and which said slamming is prevented, by the
cushioning of air by a piston, working within a cylinder.
The spring part, consists essentially, of a horizontal axis, working within bearings,
or taking within the angular inside of a bush, disposed and working within an enclosing
spring casing or bracket, and around which said axis, a coiled spring encircles, with
its inner end, connected thereto, and with its outer end, secured to an outer part, or
fixed framing, preferably of the construction of door spring, described in the Specification
of Letters l'atent applied for by Samuel Hill and dated the 8th day of March 1887
numbered 3488.
The box or carrying part of the spring, is secured to a door, while the axis or spindle
has an upwardly directed arm, whose upper end, is connected and jointed to a link or
links, also connected and jointed to a bracket, carried by the door framing.
The pneumatic check in connection with the spring, consists of a barrel or cylinder,
within which a piston reciprocates, and whose rod passes outwardly, through the front
cap of the cylinder, and with the extreme outer end of the said rod, made into an eye,
or joint centre, which takes upon an end of the spindle of the spring.
The fore-part of the piston rod, is secured upon the end of the spindle, by a screw
cap or head.
The underside of the rear end of the barrel or cylinder, is connected to the top
framing of a door, by a jointed bracket, or like connection, which admits of the check
turning upon the said connection, as a joint centre; so that the check is supported at
its rear end upon a joint secured to the fixed framing of a door, while the fore part is
supported by the connection of its piston rod, with the spindle, which is carried with
the spring on the opening of a door.

page_text: On a door being opened, the spring upon it, is moved outwardly, and the piston
rod of the check carried with it, at a varying angle, according to the amount of
opening.
Thus, the combined spring, and check, consists simply of a check jointed to the
fixed framing of a door, and with the piston rod, connected to the axis of a spring
carried by the door, and connected to the fixed framing, by an arm and jointed link.
COMPLETE SPECIFICATION.
Improvements in Combined Door Springs and Pneumatic Checks.
I, PHINEHAS EDWARD AYTON of the firm of Thomas Pemberton & Sons, of Livery
Street, Birmingham, in the County of Warwick, Manufacturer 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 combined door springs, and air checks, in which the
former is designed to reclose a door when opened, while the latter is arranged to
prevent the said door from slamming, when closed; and which slamming is prevented,
by the cushioning of air by a piston, working within a cylinder.
The spring part, consists essentially, of a horizontal axis, working within bearings,
or taking within the angular inside of a bush disposed and working within an enclosing
spring casing, or bracket, and around which said axis, a coiled spring encircles, with
iis inner end connected thereto, and with its outer end, secured to an outer part, or
fixed framing, preferably of the construction of door spring described in the Specifica-
tion of Letters Patent, applied for by Samuel Hill and dated the 8th day of March 1887
numbered 3488.
The box or carrying part of the spring, is secured to a door, while the axis or
spindle has an upwardly directed arm, whose upper end is connected and jointed to a
link or links, also connected and jointed to a bracket, carried by the door framing.
The pneumatic check in connection with the spring, consists of a barrel or cylinder
within which a piston reciprocates, and whose rod passes outwardly through the front
cap of the cylinder, and with the extreme outer end of the said rod, made into an eye
or joint centre, which takes upon an end of the spindle of the spring.
.

page_text: The fore part of the piston rod, is secured upon the end of the spindle, by a screw
cap or head.
The underside of the rear end of the barrel or cylinder, is connected to the top
framing of a door, by a jointed bracket, or like connection, which admits of the check
running upon the said connection, as a joint centre; so that the check is supported at
its rear end upon a joint, secured to the fixed framing of a door, while the fore part
is supported by the connection of its piston rod, with the spindle, which is carried
with the spring on the opening of a door.
On a door being opened, the spring upon it, is moved outwardly, and the piston
rod of the check carried with it, at a varying angle, according to the amount of
opening.
Thus, the combined spring and check, consists simply of a check, jointed to the
fixed framing of a door, and with the piston rod connected to the axis of a spring,
carried by the door, and connected to the fixed framing, by an arm and jointed
link.
I will now proceed to describe with reference to the accompanying drawing, the
manner in which the same is to be performed.
Figure 1 represents in plan, a combined door spring and check, of which the latter
The said combined
is mainly constructed, in accordance with this invention.
apparatus, is shown applied to a door, and which said door, is reprosented in a closed
position.
Figure 2 is a like view as figure 1, but with the door, which carries the spring
shown open, and the parts of the combined apparatus shown in the respective
positions, which they assume, when the door is partly opened, as aforesaid.
Figure 3 is an inner side end elevation, of figure 1, and with the affixing cap and
bossed eye of the piston rod, in section.
Figure 4 is a front elevation, upon a smaller scale, the said combined door spring
and air check.
a is a drum like casing, containing within it, a coiled, volute, or evolved spring,
whose inner end, or one end, is secured to a turning bush b, and the other or outer
end, to the inside or other part of the enclosing casing a. The said bush, works and
turns within a bushed bearing a², supported within the enclosing frame a.
Passing axially through the said bush, is a square spindle c, with its outer end c²,
made round and wormed; and upon the outer end of the said spindle, the bushed
inner end 2, of an arm d, fixedly secured, while the outer end of the said arm, is
jointedly connected to an intermediate link e, with a stud e², at its free end, which
admits of passing into one or other of a series of gaps f, of an adjustable link,
whose lower or inner end, is jointedly connected to a bracket g, which is fixedly
secured to the transom or door frame h, of a door. It will be understood, that the
spring enclosing casing, and carrier a, is secured to a door i.
jis an air check, consisting of a barrel or cylinder, jointedly rearwardly, on its
underside, to the transom h, by a hinge jointed bracket k; and working within the
interior of the said barrel or cylinder, is a piston, whose piston rod I, works through
the inner end cap of the said check, and with its outer end, which is made into a
bossed eye, or link end, takes upon the end of the spindle c², and is there secured by
a cap m.
Interposed between the inside of the eye of the end 2, and the outside of the
spindle end c, is a bearing ring ³.
The bracket k, to which the rear underside of the air check j is jointed, is prefer-
ably swivelly secured in position, by a single screw k, which thus admits of the
check being turned round, in making the connection of its piston end with the
spindle.
I wish it to be understood, that other forms of springs, with laterally directed, and
turning spindles, may be employed in connection with a check, instead of the
special form of spring as herein described and represented; and further, I wish it
to be also observed, that the application of my invention to swing and other doors,
differs in little respect from its application to that of an ordinary door, and that the

page_text: spring instead of being placed upon a door, and the check upon a door frame, they
may be reversed, so as for the door to carry the check, and the door frame the
spring.
The outer end cap of the check, is provided with an adjustable screw n, which
when screwed in or out, adjusts the passage for the exit of air, as is common with air
checks of the ordinary construction.
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 clain is.
First: The means herein described of mounting door checks, or pneumatic door
checks, whereby one end, or the underside at one end, is made to vertically turn
upon a hinge joint, while the piston rod outer end is jointedly connected to a
transversely directed spindle or axis, of a spring or door closer.
Secondly Jointedly connecting the piston rod outer end of a door check, or a
pneumatic door check, to the spindle or axis of a door spring, or door closer.
Thirdly The combination with a door spring, of the kind, or of a like kind,
as herein set forth, of a check, or a pneumatic check, which is constructed,
arranged, and mounted, substantially as described and illustrated.
Lastly In door springs, fitting the same with a supplementary bush a², wherein
the spindle carrying bush b, works, as set forth.
Dated this Eleventh day of June 1888.