Improvements relating to Door Holders and Checks.
Year: 1898

page_text: Date of Application, 29th July, 1898-Accepted, 1st Oct.,
1898
COMPLETE SPECIFICATION.
Improvements relating to Door Holders and Checks.
I, OLIVER BECK, Joiner, of 33, Salisbury Road, St. Albans Road, Watford, 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:-
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This invention relates more especially to swing doors such as are used in public
buildings and other places, but is also applicable to other doors, and has for its
object means for restraining the swinging motion of the door, and whereby the
amount of closure of the door can be regulated.
According to this invention two brackets are screwed one on the door frame
and one on the door and to these brackets rods are pivoted. The rod which is
attached to the bracket upon the door is hollow and within it another rod is adapted
to slide this latter rod being connected by means of a link to the bracket upon the
door frame. A pin can be inserted in one of several places in this latter rod and
projects up through a slot in the outer or hollow rod. As the door is opened or
closed 'the inner rod slides in the outer rod as far as is permitted by the pin which
come in contact with the ends of the slot and thus regulates the amount of closure
according to the position of said pin.
A spring or vulcanised rubber ring or any other suitable substitute is placed
between the pin and the outer or hollow rod whereby shocks or jerks are
minimised when the pin comes in contact with the end of the slot. A device is
also provided for locking the door in any position.
In order to more clearly indicate the nature of this invention, reference is had
to the accompanying drawings in which Fig. 1 is an elevation partly in section of
a device constructed according to this invention showing the door in a fully closed
position, and Fig. 2 is a plan also partly in section showing the door in an open
position and the pin being inserted so as to permit of only a partial closing of the
door as indicated in dotted lines.
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Fig. 3 shows in elevation another method of fixing the regulating pin to the
sliding rod and Fig. 4 is a plan of the same showing another method of locking the
door. Fig. 5 is a detail view of part of said locking mechanism.
The bracket B is secured to the door frame by screws or other means at a con-
venient height and the bracket A is attached to the door at a suitable distance from
the bracket B and at a corresponding height. To the bracket B is attached by
means of the links E, the rod C, and to the bracket A is attached the hollow rod D,
the pivots of these swing connections being shown at abc. These pivots are pre-
ferably constructed so that the rods CD cannot pass beyond the right angular
position and they cannot therefore turn inwards and probably become broken or
damaged.
The rod C is adapted to slide within the rod D and its end is somewhat enlarged
as shown at cl. To facilitate the insertion of the rod C the end of the hollow rod D
is provided with a cap d which is placed in position after the parts have been put
together. The rod C is provided with several holes and within these a
can be inserted, this pin F projecting up through a slot formed in the hollow
rod D. A chain J serves to prevent the pin F being lost.
pin F

page_text: As the door is opened the rods C D and the link E move slightly on their
pivots a b c and the rod C slides in the rod D. During this action the parts take
up the position shown in plan in Fig. 2. As soon as the door is released it swings
back until the pin comes in contact with the end of the slot d when further
movement is prevented as shown in dotted lines Fig. 2. It will thus be seen that
the amount of closure of the door can be regulated according to which of the
holes the pin F' is inserted into thus in Fig. I the door will entirely close, but in
Fig. 2 only to the angle shown.
In the arrangement shown in Figs. 3 and 4 the pin F is not inserted right
through the rod C but is mounted in a sliding sleeve I and provided with a
spring for retaining it in engagement with the rod C. It will be seen that by
slightly raising the pin F it can be disengaged from one of the holes and caused
to engage with another.
In order to minimise shocks and jerks a spring F¹ is inserted between the cap d
and the pin F. To provide a means for locking the door in any position disc
surfaces bare formed upon the end of the rod C and upon the bracket B
adjacent to the link E and these discs are formed with a number of recesses or
teeth on their peripheries between which a pin H can be inserted so as to engage
the teeth or recesses on both.
In the arrangement illustrated in Figs. 4 and 5 a segment K of a wheel is
mounted on the bracket B and can be caused to engage with a number of slots con
the end of the link E, and this prevent any movement thereby locking the door in
any position.
If desired an automatic closing device may be combined with the above described
arrangement.
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:
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(1) An arrangement for regulating the closure of swing and other doors, consist-
ing of brackets attached one to the door frame and one to the door, a hollow rod
pivoted by means of a link to the bracket upon the door frame and adapted to
slide within the hollow rod, and a pin inserted in one of several holes in said sliding
rod and projecting through a slot in the hollow rod, substantially as described and
for the purposes specified.
(2) An arrangement for regulating the closure of swing and other doors, consist-
ing of brackets attached one to the door frame and one to the door, a hollow rod
pivoted to the bracket upon the door, a rod pivoted by means of a link to the
bracket upon the door frame and adapted to slide within the hollow rod, a pin
inserted in one of several holes in said sliding rod and projecting through a slot in
the hollow rod, a spring connection between the pin and the hollow rod and a means
for locking the whole apparatus in any desired position, substantially as described
and for the purposes specified.
(3) An improved arrangement for regulating the closure of swing and other
doors, consisting of brackets A. B, rods CD, link E, pivots a be, pin F inserted in
one of the holes in the rod C and working in the slot of the rod D, and
spring F, all arranged and operating substantially as described with reference
to the drawings and for the purposes specified.
.
(4) An improved arrangement for regulating the closure of swing and other doors,
consisting of brackets A B, rods C I), link E, pivots a b c, pin F mounted in
sliding sleeve I upon the rod C and adapted to engage with one or other of the
holes and working in the slot d' of the rod D, spring i serving to ensure the
engagement of said pin F and spring all arranged and operating substantially
as described with reference to Figs. 1, 2 and 3 of the accompanying drawings and
for the purposes specified.
(5) An improved arrangement for regulating the closure of swing and other doors,
consisting of brackets A B, rods CD, link E, pivots a b c, pin F inserted in one of

page_text: the holes in the rod C and working in the slot of the rod D, spring F1,
discs provided with teeth or recesses on their peripheries, and a pin H adapted
to engage with said teeth or recesses, substantially as described with reference to
Figs. 1 and 2 of the drawings and for the purposes specified.
(6) An improved arrangement for regulating the closure of swing and other
doors, consisting of brackets A B, rods CD, link E, pivots a b c, pin F inserted in
one of the holes in the rod C and working in the slot of the rod D, spring F,
slots formed on the end of link E and a segment K mounted on the bracket B
and adapted to engage with said slots e substantially as described with reference
to Figs. 3, 4 and 5 of the drawings and for the purposes specified.
Dated this 20th day of July 1898
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.