Improvements in and relating to Door Pivots.
Year: 1891

page_text: Date of Application, 12th June, 1891
Complete Specification Left, 3rd Mar., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Door Pivots.
I, BRUNO MÄDLER, of 112 Köpenickerstrasse, Berlin, in the Empire of
Germany, Merchant. do hereby declare the nature of this invention to be as.
follows:-
My invention relates to door pivots.
In swing doors having rising-pivots it is needful to provide a device which.
enables a suitable adjustment of the two inclined sliding surfaces relatively to each
other when the doors, in consequence of the greater wear of one sliding surface,.
cease to have the desired amount of swing-purchase, or when the proper position of
the door is to be maintained as it closes. According to the said invention this is
effected by adapting the upper sleeve or socket which surrounds the pivot proper to.
be turned and to be fixed in the desired position.
The lower sleeve or socket is immovably fixed in the pan, whilst the upper sleeve
or socket has an arm which is placed in a recess formed in the lower edge of the
door, and a part of which is bent upwards and in order to fit it to the rear edge of
the door. Through the medium of this arm the upper sleeve or socket can he
turned a little. In the said upwardly bent part is formed a slot which enables it to
be displaced below the head of a screw in the adjustment. By tightening this
screw the said arm and therefore the upper sleeve or socket can be fixed in the
desired position. The arın does not protrude at any point beyond the edge of the
door, and, the inner surface of its upwardly bent part and the corresponding surface
of a piece of metal which receives the aforesaid screw and is let into the door have
the axis of the pivot proper for their common centre.
By the above described device the adjustment of the door pivot is effected in a
very simple and practical manner.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Door Pivots. -
I, BRUNO MÄDLER, of 112, Köpenickerstrasse, Berlin, in the Empire of
Germany, Merchant, 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 pivots.
In swing doors having rising-pivots it is necessary to provide means by which
a suitable adjustment of the two inclined sliding surfaces relatively to each other can
be effected when the doors, in consequence of the greater wear of one sliding surface,
cease to have the desired amount of swing-purchase, or when the proper position of
the door is to be maintained as it closes. According to the said invention this is
effected by adapting the upper sleeve or socket which surrounds the pivot proper
to be turned and to be fixed in the desired position.
In the accompanying drawing,
Figure 1 is a vertical section of my improved pivot,
Figure 2 is an end view of the same, and
Figure 3 is a sectional plan thereof.

page_text: The lower sleeve or socket a is immovably fixed in the pan, whilst the upper
sleeve or socket b has an arm c which is placed in a recess formed in the lower
edge of the door, and a part cl which is bent upwards in order to fit it to the rear
edge of the door. Through the medium of this arm c, c¹ the upper sleeve or socket
can be turned a little. In the said upwardly bent part c¹ is formed a slot d which
enables it to be displaced below the head of a screw e in the adjustment. By
tightening this screw the said arm c, e and therefore the uppor sleeve or socket
can be fixed in the desired position. The arm c, does not protrude at any point
beyond the edge of the door, and the inner surface of its upwardly bent part c¹
and the corresponding surface of a piece of metal which receives the aforesaid
screw and is let into the door have the axis of the pivot properf for their common
centre.
By the above described device the adjustment of the door pivot is effected in a
very simple and practical manner.
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. In rising-door pivots the adjustable arrangement of the upper sleeve (b)
provided with the inclined supporting surface by means of an arme let into the
door, the upwardly bent part (c) taking around the back of the door the said bent
part being provided with the slot d for receiving the fastening screw (e).
Dated this 3rd day of March 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.