Door Check and Closer.
Year: 1891

page_text: Date of Application, 2nd Feb., 1891
Complete Specification Left, 8th Oct., 1891-Accepted, 14th Nov.. 1891
PROVISIONAL SPECIFICATION.
Door Check and Closer.
I, JOHN EDWARD MELLOR Bookkeeper 1401 Park Avenue New York
City, U.S.A. do hereby declare the nature of this invention to be as follows:-
Sheet 1. The combination of a cylinder A, having a cap B with air inlets b',.
screwed on its outer end; an air retarding disc 62. Said cylinder A having on its
inner end a cap C with parallel projecting lugs c', said lugs being pivotally attached
to an angular standard D having duplicate attaching points dd; a piston E, a
projecting piston rod F and a coiled spring G for actuating same inside cylinder A;
an arm H pivotted at one end to standard D at d³ and intermediately pivotally
attached to piston rod F; a standard J provided with a friction wheel j' for
engaging with arm H. Standard D is screwed to and flush with top of door, and
standard J is screwed to the lintel immediately above the door substantially as
drawn.
.
Figure 1 shows the device when door is closed.
Figure 2 shows the device when door is open.
Figure 3 shows an edge view of standard D and method of attaching to cylinder.
Figure 4 shows an edge view of standard J and friction wheel j¹.
Sheet 2. Figures 5, 6 and 8 represent a modification of above, whereby the
cylinder in its normal position is parallel with the lintel and immediately above
the door, and is a combination of a cylinder A having at one end a cap C with air
inlets and outwardly projecting lug e for pivotally attaching to. the projecting
part of arm H, an air retarding disc, a spring actuated piston and piston rod, said
piston rod being pivotally attached to an upright part
being at one end pivotally attached to standard Kat
engaging with standard provided with a friction wheel
Figure 5 shows device when door is closed.
Figure 6 shows device when door is open.
of standard Karm H
and at other end slidingly
substantially as drawn.
Figure 7 shows method of attaching piston rod to standard K.
Figure 8 shows method of attaching cylinder to projection ' of arm H.
Dated this 22nd day of January 1001
JOHN EDWD. MELLOR.
COMPLETE SPECIFICATION.
Door Check and Closer.
1, JOHN EDWARD MELLOR of No. 1401 Park Avenue, New York City U.S.A
Bookkeeper 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 door checks and door closers, and consists in the
construction and novel combination of parts, as will be hereinafter described and
pointed out in the claims appended. The drawings left with the Provisional
Specification fully illustrate my invention in which
Figure 1 represents a plan or top view of my improved door check and closer,
howing the device in its normal condition the door being closed.
Figure 2 is also a plan or top view of the same the door being open.
Figure 3 is an edge view of standard D, and illustrates method of attaching said
tandard to cylinder A.
Figure 4 is an edge view of standard J and friction wheel;

page_text: Keterring by letter to the drawings,
A designates a cylinder, which is provided with an air valve B, having air
inlets,, and having also an india rubber air retarding disc, . Cylinder A is also
provided at its inner.end with. a cap, C, having parallel projecting lugs, c', for
pivotally attaching to the end of the horizontal part of the standard Ď, a bolt being
employed for this purpose.
Dis an angular standard having duplicate attaching points, d', d, and having
holes in its vertical part to receive screws with which it is fastened to the top of
the door.
J is a standard, provided with a revolving friction wheel, ¹, and is screwed to the
lintel immediately above the door.
E is a piston which is secured to the end of the piston rod F, lying within the
cylinder, and is preferably constructed in the following manner:
A metal disc of slightly less diameter than the inner diameter of the cylinder is
first placed on the piston rod, then a cup shaped leather washer of greater diameter
than the disc; then a rubber washer of less diameter than the leather washer, so
that the latter will be held in contact with the inner peripheral surface of the
cylinder, and lastly another metal disc is placed on the piston rod & the whole held
together by a nut or the like.
H is a metal bar or arm, pivotally attached at one end to the standard D. at d³,
and intermediately pivotally attached to the end of piston rod F, which projects
through a centrally disposed hole in cap C said arm H. also slidingly engages on
its outer edge with revolving friction wheel of standard J. The air valve B is
fitted on the cylinder in the ordinary way, and the india rubber disc, 62, has a
centrally placed hole or cut to admit of the ready ingress of air, but so prevents the
too rapid egress of air, as to give sufficient resistance to ensure a steady, easy,
automatic, closing action of the door.
The piston rod F is encircled by a coiled spring G; which preferably fits snugly
within the cylinder. The act of opening the door draws up the arm; withdraws
the piston, thereby compressing the spring, and admitting air into the cylinder, the
device assuming the position shown in Figure 2. When the door is closing, the
spring operates the piston and piston rod and consequently the arm to which it is
connected; the air retarding disc prevents the too rapid egress of air thereby
securing a slow action of the piston and arm, and a consequent steady, automatic,
closing of the door.
The drawings Figures 1 and 2 illustrate the device as applied to a right hand
door. To apply the device to a left hand door, the end of the bar H must be
disconnected from standard D, at point d³; and connected thereto at point, d'; the
cylinder must be disconnected at point d', and connected at point d' of the standard ;
and the piston rod must be again connected to arm H, it having been previously
disconnected therefrom.
Figure 5, represents a top or plan view of a modification of the foregoing door
check and closer, whereby the cylinder instead of being approximately at right
angles with the door when closed is approximately parallel thereto.
Figure 6 is a top or plan view of same modification, the door being open.
Figure 7 is an edge view of the standard K, and illustrates method of attaching
same to piston rod.
Figure 8 shows method of attaching cylinder to projection ', of arm H.
Referring by letter to the drawings
Jis a standard having friction wheel j. A is a cylinder having an air valve C
with air inlets, an air retarding disc, a piston, a piston rod, and a coiled spring, all
substantially as herein before described. K is a standard screwed to the top of the
door, and is provided with an upright ', for pivotally connecting with piston rod.
His a metal bar or arm which is pivotally attached to standard K at k², and is
also intermediately provided with a projection or short arm h'.
Air valve C is provided with an outwardly projecting lug e', which is pivotally
attached to short arm h¹ of arm H.

page_text: The arm H is slidingly connected with the revolving friction wheel of
standard J.
The act of opening the door draws up the arm, withdraws the piston, thereby
compressing the spring, and admitting air into the cylinder, the device assuming
the position shown in Figure 6. When the door is closing the spring operates the
piston and piston rod, and consequently the arm to which it is connected, the air
retarding disc prevents the too rapid egress of air and thereby secures a slow
action of the piston and arm, and a consequent, steady, automatic closing of
the door.
Figures 5 and 6 illustrate the device as applied to a right hand door. To apply
it to a left hand door, the arm H must be disconnected from the standard K at K,
turned over; and again connected at 3, the cylinder must be disconnected from
short arm hand again connected on the other side.
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 of the cylinder having the attaching lugs, and the projecting
piston rod, spring, piston head and air valve; with the standard having duplicate
attaching points, the reversible metal bar, detachably, pivoted to the standard, and
to the projecting piston rod; and the standard provided with a revolving friction
wheel, for engaging with said metal bar, substantially as specified.
2. The combination of the cylinder having the attaching lug, and the projecting
piston rod; spring, piston head and air valve; with the standard having duplicate
attaching points, and an upright for connecting with piston rod; the reversible metal
bar detachably pivoted to the standard; said metal bar having an intermediate
short arm, detachably connected with attaching lug of cylinder, and the standard
provided with a revolving friction wheel; for engaging with said metal bar,
substantially as specified.
Dated this 29th day of September 1891.
JOHN EDWD. MELLOR.