Year: 1887

page_text: Date of Application, 4th July, 1887
Complete Left, 12th Nov., 1887
Complete Accepted, 13th Dec., 1887
We SAMUEL HILL of No. 57 Hockley Hill Birmingham in the County of Warwick
Cabinet Bar Fitter and ROWLAND HODGES of No. 12 Frederick Street Birmingham
aforesaid Brass founder do hereby declare the nature of this Invention to be as
follows:-
--
This invention has reference to such spring hinges for double swing doors and other
swing doors as are let into the floor or door sill or frame the door turning upon pivots
or axes at its top and bottom and the said invention consists principally of the
construction of parts hereinafter described for connecting the shoe of the spring hinge
to the pivot or axis of the said hinge and also of the combination of the parts of the
mechanism of the hinge hereinafter described.
By these improvements the spring of the hinge is capable of ready adjustment the
aligning or bringing of the two doors into the same line or a single door into the line
of the door frame can be easily effected and the box or container of the hinge
mechanism is so narrow that less cutting away of the foundation or sill for the
reception of the said container is required than in ordinary spring hinges.
Instead of making the projecting upper end of the pivot or axis of the ebinge on
which pivot the shoe on the dcor fits angular as usual we make the said upper end of
the pivot slightly conical and connect to it a nearly horizontal arm which passes into
the shoe the end of the said arm having a be-dovetail upon it which takes into a
correspondingly shaped she-dovetail or seat in an adjustable block working cross wise
in a fixed piece secured in the shoe. The bottom of the shoe has a slot in it of a
shape and size proper for passing over the conical part of the pivot and the arm on
the said pivot the he-dovetail on the said arm seating itself in the adjustable block
described in the shoe. The adjustable block is furnished with a hollow screw for
receiving two adjusting screws passed into the said hollow screw from opposite sides
of the shoe. the ends of the said screws nearly meeting in the middle of the adjustable
block. By slightly withdrawing one of the said screws and tightening the other
screw the adjustable block can be drawn nearer to one or other side of the shoe and
the door thereby brought into line with the other door or in the case of a single door

page_text: into line with the door frame. The screws described besides serving to adjust the
position of the sliding block also serve to set or fix the said block.
The parts of the mechanism of the spring hinge are constructed and combined in
the box or container in the following manner.
In the narrow box or container is a sliding block fitting closely therein. On the
upper and lower faces of the said block are anti-friction rollers having motion in a
horizontal plane and a double cam or double bearing on the pivot or axis of the hinge
bears against the said rollers. The said pivot or axis passes to and works in the
bottom of the box or container. To the front of the sliding block a guide rod is
affixed around which is a strong coiled spring. This guide rod passes through a
guide plate at the front of the box or container one end of the coiled spring taking an
abutment against the said plate and the opposite end against an adjustable screw nut
working on a screwed part of the guide rod. By adjusting the said screw nut the
strength of the coiled spring acting against the sliding block may be increased or
diminished at pleasure.and the pressure of the rollers carried by the said block on the
double cam or bearing on the pivot is consequently increased or diminished. A
second coiled spring of small diameter may be used with the spring before
referred to.
This second coiled spring takes at one end an abutment against a shoulder on the
guide rod and at the other end takes an abutment against the guide plate.
When the door is opened in one or other direction the pivot or axis of the hinge is
partly rotated and its double cam or bearing acting upon the rollers on the sliding
block the latter forces forward and compresses the coiled spring or springs the
expansion of the spring or springs closing the door by its or their action on the block
rollers and double cam on the pivot or axis.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: We SAMUEL HILL of No. 57 Hockley Hill Birmingham in the County of Warwick
Cabinet Bar Fitter and ROWLAND HODGES of No. 12 Frederick Street, Birmingham
aforesaid Brassfounder, do hereby declare the nature of the said 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 has reference to such spring hinges for double swing doors and other
swing doors as are let into the floor or door sill or frame, the door turning upon pivots
or axes at its top and bottom; and the said invention consists principally of the
construction of parts hereinafter described for connecting the shoe of the spring
hinge to the pivot or axis of the said hinge and also of the combination of the parts
of the mechanism of the hinge herein after described.
By these improvements the spring of the hinge is capable of ready adjustment;
the aligning or bringing of the two doors into the same line or a single door into the
line of the door frame can be easily effected and the box or container of the binge
mechanism is so narrow that less cutting away of the foundation or sill for the
reception of the said container is required than in ordinary spring hinges.
Instead of making the projecting upper end of the pivot or axis of the hinge, on
which pivot the shoe on the door fits, angular as usual we make the said upper end
of the pivot cylindrical or slightly conical and connect to it a nearly horizontal arm
which passes into the shoe, the end of the said arm having a he-dovetail upon it
which takes into a correspondingly shaped she dovetail or seat in an adjustable
block working crosswise in a fixed piece secured in the shoe. The bottom of the shoe
has a slot in it of a shape and size proper for passing over the cylindrical or conical
part of the pivot and the arm on the said pivot, the he dovetail on the said arm
seating itself in the adjustable block described in the shoe. The adjustable block is
furnished with a hollow screw for receiving two adjusting screws passed into the said
hollow screw from opposite sides of the shoe, the ends of the said screws nearly
meeting in the middle of the adjustable block.. By slightly withdrawing one of the
said screws and tightening the other screw, the adjustable block can be drawn
nearer to one or other side of the shoe and the door thereby brought into line
with the other door, or in the case of a single door into line with the door
frame.
The parts of the mechanisin of the spring hinge are constructed and combined
in the box or container in the following manner.
In the narrow box or container is a sliding block fitting closely therein. On the
upper and lower faces of the said block are anti friction rollers having motion in a
horizontal plane and a double cam or double bearing on the pivot or axis of the hinge
bears.against the said rollers. The said pivot or axis passes to and works in the
bottom of the box or container. To the front. of the sliding block a guide rod is
affixed around which is a strong coiled spring. This guide rod passes through a guide

page_text: plate at the front of the box or container, one end of the coiled spring taking an
abutment against the said plate and the opposite end against an adjustable screw nut
working on a screwed part of the guide rod. By adjusting the said screw nut the
strength of the coiled spring acting against the sliding block may be increased or
diminished at pleasure and the pressure of the rollers carried by the said block on the
double cam or bearing on the pivot is consequently increased or diminished. A
second coiled spring of small diameter may be used with the spring before referred
to. This second coiled spring takes at one end an abutment against the screw nut
and at the other end takes an abutment against the guide plate.
We will now proceed to describe with reference to the accompanying Drawings the
manner in which the said invention is to be performed.
Figure 1 represents in longitudinal vertical section Figure 2 in transverse section;
Figure 3 in plan, with the top plate and shoe removed, and Figure 4 in plan, with the
top plate and shoe in position, a spring hinge for a swing door constructed according
to this Invention; Figures 5 and 6 represent elevations taken at right angles to one
another of the pivot or axis of the hinge and its cams and horizontal arin. in com-
bination with the sliding block and its anti friction rollers, the said parts being
detached from the box or container; Figure 7 represents a plan and Figure 8 a
vertical section of the same; Figure 9 represents a plan of the parts after the door
has been opened and the cams made to act upon the rollers on the sliding block;
Figure 10 represents in plan and section the adjustable aligning block detached from
the shoe.
The same letters of reference indicate the same parts in the several Figures of the
Drawings.
e
best seen
a is the pivot or axis of the spring hinge working at its lower end in a recess or
seat at the bottom of the box or container in the manner shown in Figure 1. The
upper end a² of the pivot or axis a is cylindrical or slightly conical and has fixed
upon it, or made in one piece with it, a nearly horizontal arm c. The end of the arm c
has a he-dovetail d upon it; e is the shoe fixed to the door. The bottom of the shoe
has a slot e² in it the shape of which is best seen in Figure 4. The circular end of
the slot e passes onto the cylindrical upper end a² of the pivot a on which upper end
a² it may slightly swivel or turn and the tapering part of the said slot passes over
the arm c and its he dovetail d. In the said shoe e is an adjustable block
in Figures 1. 2 and 4 and shown separately in Figure 10, the said block g working
crosswise under the lip of the fixed piece h secured to the shoe. In the said adjustable
block g is a she dovetail or seat g for the he-dovetail d on the arm c to seat itself
upon when the shoe e is placed upon the pivot or axis of the hinge as represented in
the Drawings. In the adjustable block is a hollow screw or screw box i for receiving
the two adjusting screws k, I passed into the said hollow screw i from opposite sides
of the shoe e. By means of the said screws k, the position of the block y in the
shoe e can be adjusted. That is to say by slightly withdrawing one of the adjusting
screws or land tightening the other screw the adjustable block g can be brought
nearer to one or other side of the shoe e as will be understood by an examination of
the cross section Figure 2. By this means the door through the arm c and its
connection with the adjustable block g can be brought accurately into line with the
other door of the pair of swing doors, or in the case of a single door into line with
the door frame. As the aligning of the door takes place, the shoe e by means of the
circular hole in its bottom slightly swivels or turns on the cylindrical part a² of the
pivot or axis a.
The screws k, besides serving to adjust the position of the block g also serve to fix
the said block in its place in the shoe e.
The construction and combination of parts described and represented for connecting
the shoe to the pivot or axis of the spring hinge whereby the aligning of the door or
doors can be readily effected may be applied to spring hinges generally which are let
into the floor or door sill or frame. We will now describe the mechanism of the
spring hinge in the box or container ; m is a sliding block fitting closely in the box
or container b; n, n are the anti friction rollers on the upper and lower faces of the

page_text: said sliding block m the said rollers being fixed on the ends of the same spindle p
working in a semi cylindrical hole in the end of the said block m (see Figures &
and 9). On the pivot or axis a is a double cam or double bearing 7, r the parts of
which respectively bear against the two rollers n, n on the block m. The upper
roller
in Figure 9 is partly broken away for the purpose of showing the under roller.
Fixed to the sliding block m is a guide rod s partly screwed at On the screwed
part 2 of the guide rod an adjustable screw nut t works. Around the guide rods, s²
is a double or concentric coiled spring u or a single coiled spring may be used. The
front end of the guide rod s passes through a fixed guide plate at one end of the
box or container b. The double or concentric coiled spring d takes an abutment at
one end against the plate and at the opposite end against the adjustable screw nut t
on the guide rod. The screw nutt is turned on the screwed part of the guide
rod by means of a wire or rod, the end of which is inserted in the holes in the
periphery of the said screw box. By adjusting the position of the screw nutt on the
screwed part of the guide rod s the strength of the coiled springs u acting against
the sliding block m through the screw nut and guide rod may be increased or
diminished at pleasure and the pressure of the rollers n, n carried by the said block m
on the double cam q, r is consequently increased or diminished.
When the door is opened in one or other direction, the pivot or axis a, a² of the
hinge is partly rotated and its double cain or bearing q, r acting upon the rollers n, n
on the sliding block m the latter forces forward and compresses the coiled springs u
(or spring) the expansion of the said spring or springs closing the door by its or
their action on the block m, rollers n, n and double cam r on the pivot or axis a, a²,
as will be understood by an examination of Figures 1 and 2.
Having now particularly described and ascertained the nature of this inven-
tion and the manner in which the same is to be performed we declare that we
claim as the said invention of "Improvements in spring hinges for swing doors; "-
First. The construction and combination of parts herein before described and
illustrated in the accompanying Drawings for aligning or bringing into the same line
the swing doors to which spring hinges are applied, or in case of a single door into
the line of the door frame; that is to say, making the upper part of the pivot or axis
of the spring hinge cylindrical or slightly conical the said cylindrical or conical part
carrying at top a horizontal arm terininating in a he-dovetail, or its equivalent, and
the combination with the said horizontal arm of an adjustable block carried by the
shoe for receiving the he-dovetail of the said horizontal arm, the several parts being
constructed combined and working substantially as described and illustrated.
Secondly. The combination in a spring hinge for swing doors of the double cam or
double bearing q, on the pivot or axis of the hinge with the rollers n, n sliding
block m and guide rods, s² substantially as hereinbefore described and illustrated in
the accompanying Drawings..
rod
Thirdly. The combination in a spring hinge for swing doors of the screwed guide
and adjusting screw nutt for adjusting the strength of the spring or springs.
around the said guide rod substantially as herein before described and illustrated in
the accompanying Drawings.
Dated this Twenty ninth day of September 1887