Improvements in or relating to Hinges.
Year: 1896

page_text: Date of Application, 7th July, 1896-Accepted, 3rd Oct., 1896
Improvements in or relating to Hinges.
A communication from THE STANLEY WORKS, a corporation organised under the
laws of the State of Connecticut, of Myrtle Street, New Britain, State of
Connecticut, United States of America."
I, ALFRED JULIUS BOULT, of 111 Hatton Garden, in the County of Middlesex,.
Chartered Patent, 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 improvements in anti-friction hinges and the main
object of the improvement is to provide hinge having three or more knuckles.
with rolling frictional devices directly within the knuckles of the hinge.
In the accompanying drawings-
EL
Figure 1 is a vertical section of a loose pin hinge containing this improvement,
the plane of section being indicated by the line of Fig. 2 and some of the parts
being shown in elevation.
Figure 2 is a plan view of the left hand leaf of said hinge, and
Figure 3 is a like section partly in elevation of two adjoining knuckles of a fast
pin hinge.
This
A. B. designates the leaves of an ordinary loose pin hinge, the leaf A being
provided with knuckles 6. 6, while the leaf B is provided with knuckles 7, the
same being secured together by means of the loose pintle 18 as in ordinary
hinges of this class. In the upper kuuckies of the left hand leaf A is formed
an annular channel for a series of anti-friction rollers 8. Each of these rollers
is provided on one side with a small projection or trunnion 9, said trunnion being
upon that side which faces the axis of the hinge. The bore for the pintle in
this knuckle is counter bored for the reception of the sleeve 10, the same being
provided at its outer edge with a holding flange 11 which projects over the
trunnions 9 of the rollers and prevents their accidental detachment.
sleeve 10 is driven into the knuckle snugly so as to be rigid therewith and it
separates the annular channel from the pintle. The rollers 8 are arranged in the
annular channel so that their summits project beyond the end of the knuckle to
receive the bearing face at the end of the adjoining knuckle as shown. From this
description it will be seen that the holding flange is not a bearing surface in the
sense of being a surface that supports weight during the action of the hinge, but
is a mere holding flange taking upon the lesser portion of the rolling frictional
devices, while their full diameter extends from the bearing surface proper on one
knuckle to the bearing surface proper of the companion knuckle.
In the lower knuckle of the right hand leaf B is shown substantially the same
construction, excepting that for rollers spherical balls 88 are substituted, which
are another known form of rolling frictional devices.
The same annular channel is employed for the balls, the same counter bored
knuckle and the same sleeve 10 with its holding flange 11 taking upon the smaller
portion of the balls, while their full diameter extends from the bearing surface of
one knuckle to the opposing surface of the companion knuckle. In this style of
hinge when the leaf A is secured to the jamb or post, the weight of the door is
supported by the anti-friction devices in the knuckle 6 of the leaf A. If however,
the leaf B shall be secured to the post or jamb for hanging a different handed door,

page_text: then the weight of the door will be supported by the rolling frictional devices in
the knuckles 7 of said leaf B.
In Fig. 3 I have shown two knuckles 66 and 77 of a three or more knuckle hinge
and a fast pintle 180 which is permanently secured in place by having a head at
each end as in ordinary fast pin hinges: The rolling frictional devices in the form
of balls 88 are placed in a chamber or annular groove directly in the end of the
knuckle 66, the sleeve and its over hanging flange being omitted.
In the loose pin hinge first described the flange is to hold the balls or rollers in
place when the pin is removed and the leaves are separated from each other, but
this is not necessary in a fast pin hinge in which the pintle is not to be removed as
the balls or rollers will be securely held in place so long as the pintle secures the
several knuckles together.
My correspondents are aware that prior publications show hinges with anti-
friction rollers or balls when arranged in a chamber formed upon a disk or disks
made separately from the knuckles and leaves and detachable therefrom when the
leaves and knuckles are separated, also hinges with only two knuckles with partial
chambers in each knuckle and balls extending into both partial chambers so that
the leaves can be put together and separated only by moving the knuckles in an
axial direction. In both forms of this improvement the hinge has several knuckles
(three or more) designed to be assembled and separated by moving the knuckles
transversely to the axis of the hinge and the rolling frictional devices are arranged
in their chamber within the knuckles themselves with special reference to being
put together by slipping the knuckle of one leaf laterally into the space between
two adjoining knuckles. In the loose pin hinge the flange permanently secures the
said rolling devices within the knuckles while in the form shown in Fig. 3 they are
permanently secured and prevented from being lost by the hinge pintle which is
not designed for removal."
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents and in what manner the
same is to be performed, I declare that what I claim is-
1. A hinge having in the end of one of its knuckles an annular chamber, a series
of rolling frictional devices within said chamber, and a holding shoulder or flange
made rigid with said knuckle for securing said rolling devices therein, substantially
as described.
2. A hinge having three or more knuckles adapted for putting together by
slipping the knuckle of one leaf laterally into the space between two adjoining
knuckles of the companion leaf, a series of rolling frictional devices within one of
the knuckles of said leaves and a pin for securing the parts in place, substantially
as described and for the purpose specified.
Dated this 7th day of June 190
BOULT & WADE,
Agents for the Applicant.