Improved Method and Means for Retaining and Holding Doors, Window-sashes and the like.
Year: 1899

page_text: Date of Application, 19th Apr., 1899-Accepted, 24th June, 1899
Improved Method and Means for Retaining and Holding Doors,
Window-sashes and the like.
I, JOSEPH BUTTERWORTH, of 39, Kinkora Road, Hawthorn, near Melbourne, in
the Colony of Victoria, Gentleman, 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 is designed to afford a convenient and facile means of retaining
a door, windowsash or the like in any required position, that is to say, opened or
raised to any desired degree or height.
It is well known that there are appliances in use by which the door or sash is
retained partly open or raised by means of bolts and recesses or of checks fitted
in the floor in case of doors or in the side frame in the case of windows. These
checks are often exceedingly inconvenient and are also subject to wear which
lessens or destroys their usefulness.
The object of this invention is to hold or retain the door without any such
recess or check being required.
In carrying out my invention I provide a tongue of resilient material with a
hollow or concave bearing face. This resilient tongue may be of any suitable
size and is fitted upon the end of a sliding bolt either solid or tubular with means
for projecting or withdrawing.
In order to obtain adhesion of the stop it is necessary that a certain pressure
should be applied to the stop when it contacts with the floor or side frame. In
the case of a vertically acting bolt as attached to a door the weight of the bolt
will generally be sufficient to secure the necessary pressure to secure adhesion.
When greater pressure is required and in the case of bolts having a lateral action
a suitable spring will supply the necessary pressure.
I prefer to make the resilient tongue of indiarubber or some of the compounds
thereof.
I have in the accompanying drawings shown the adaptation of my invention to
bolts of the kinds most generally in use.
Figure 1 shews my invention fitted to an ordinary door.
Figure 2 shews a tower bolt fitted with the resilient tongue. This allows the
tower bolt to be used for the purpose for which it is ordinarily intended. The
tongue is shewn in section and the bottom staple is cut away.
Figure 3 shews a tower bolt fitted with a spiral spring to ensure greater pressure
und consequent adherence of the bolt tongue.
Figure 4 shews another description of bolt the bolt proper being formed of a
tube in the bottom of which the tongue is fixed while in the upper part a spring is
arranged to ensure pressure and consequent adherence.
The bolts shewn in Figures 3 and 4 are specially suitable for window-sashes
and other positions where the bolts have a lateral action.
The resilient tongue B may be of a variety of forms all having a concave bear-
ing face B. I have shewn in Figures 2 and 3 a tongue consisting essentially of
a ring fitting upon the end of the bolt A such end being of diminished size for that

page_text: purpose so that the outside of the ring or tongue coincides with the stem of the
bolt.
In the construction shown in Figure 4 the resilient tongue is of circular shape
and solid and is fitted within the lower part of the tube A which forms the stem
of the bolt.
In order to obtain pressure a spring C is in the case of Fig. 3 fitted upon the
stem of the bolt operating between a shoulder A' near the bottom of the bolt and
a stop D at the top of the barrel D. In Fig. 4 the spring C is shewn enclosed in
the tube A operating. between a bottom piece A¹ secured in the tube and a stop D₁
secured to the foundation plate D.
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 method of holding or retaining doors window-sashes and the like in a
required position that is to say opened or raised to any desired degree or height by
the employment of a bolt fitted with a resilient tongue with a hollow or concave
face substantially as described.
2. A retaining device for doors window-sashes and the like consisting essentially
of a resilient tongue having a hollow or concave face affixed upon or in the end
of a bolt with means for projecting and withdrawing substantially as described.
19th April 1899
J. BUTTERWORTH.