Improvements in Door Springs and Checks.
Year: 1889

page_text: Date of Application, 29th Mar., 1889
Complete Specification Left, 10th Dec., 1889-Accepted, 18th Jan., 1890
PROVISIONAL SPECIFICATION.
[Communicated from abroad by EDWARD BARNETT HAINES, of Paterson, New Jersey,
United States of America.]
Improvements in Door Springs and Checks.
I, HYMEN LEVETUS of Vittoria Street, Birmingham in the county of Warwick
Jeweller, do hereby declare the nature of this invention to be as follows:-
This invention consists firstly of a door spring constructed in the following
manner.
A stud or bracket of metal is screwed or otherwise attached to the door upon the
opening side near to the top of the door on the hinged side thereof, and a headed screw
or projecting piece is fixed into the head of the door frame or casing. On to the stud or
bracket on the door is hooked a spiral spring so as to pass over the top of the door,
and on to the screw or projecting piece on the frame or casing is hooked a bar which is
formed as a rack with a number of hooks or catches to any of which the other
end of the spiral spring may be hooked so that when the door is opened it will when
released be drawn to again by the spiral spring, the racked bar being for the purpose
of regulating the strength of the spring to the weight of the door by hooking the end
of the spring to either the near or more distant hooks on the rack as required.
The second part of this invention consists of a check to prevent the slaming of the
door which may be caused by the use of the spring. This check is formed by
screwing near to either the edge of the head or the closing jamb of the door
frame or casing a small bracket upon the projecting arm of which is slid the upper
portion of a bent piece of spring metal so arranged that when the door is closing it
will come in contact with the under side of this bent spring and be check, the door
presses up the spring so that it will lie between the door and the frame or casing.
A shoulder or projection upon the end of this bent spring further checks the door
before it fully closes and the action of the spring acts like a wedge and holds the
door even if it is not fully latched.
The closing spring first described may in some instances be used without the check
and the check may be applied to doors with or without springs if desired.
Dated this 28th day of March 1889.
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicant.
.COMPLETE SPECIFICATION.
Improvements in Door Springs and Checks.
I, HYMEN LEVETUS of Vittoria Street, Birmingham in the County of Warwick,
Jeweller (a communication from Edward Barnett Haines of United States) 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 door springs and checks, as herein-after described.
Figure 1 of the accompanying drawings, represents in front elevation, a door and
door frame, provided with a closing spring and check, constructed and arranged
according to my said invention. It will be seen, that the said expedients are connected,
or applied, upon the opening side of the door, and door frame.
Figure 2 represents an elevation of the spring or closing device, with its accessory

page_text: Figure 3 is an elevation, and part section, of the same. It will be seen that the
outer end is provided with an adjustment bar, for increasing or decreasing the power
of the spring, consequent upon the weight of a door to be closed, by the contraction of
the coils of the said spring..
Thus, the opening of the door, opens out the coils, which again re-act, for the
closing of a door.
Figure 4 represents the adjustment bar separately.
a is the coiled spring, with interchangeable inner or outer end loops a², a³, which
take upon, and engage respectively with the neck ³ of an uprigh bracket b², carried by
an attachment plate b, secured to a door c.
The upper and neck end of the said upright bracket, around which the loop a³
passes, is directed above the top of the door, to a short distance above the inside edge
of the transom of a door frame d.
The other end of the spring, with loop a², is connected to one or the other of a series
of rack hooks e, of an adjustable bar e, whose outer hooked end e³, hooks upon, or to,
a loop, carried by an attachment plate ƒ³, secured to the transom d³, of the said
door frame d.
On the spring being applied to a heavy door, the coils are distended, and one of
the inner teeth, made to engage with the loop a², thereby enhancing its closing
power.
On the other hand, by the connecting of the outer end of the said spring, to an
inner hook of the rack, the spring power is decreased..
Figure 5 represents a vertical section of a door check, constructed according to my
invention, and applied to a door and door frame. It will be seen, that the said check,
consists essentially of a bent spring, whose free end normally lies, within the path of
the top of a door, when the said door is opened but lies in the same plane as the top
edge of a door, when closed, whilst the extreme free end, which is turned hook like,
constitutes a final check.
Figure 6 represents a back elevation of the same, showing the adjustment holes,
for regulating the height of the expedient, in respect to the door, to which it is to
be used.
Figure 7 represents a front elevation of the same.
The same letters of reference indicate corresponding parts of the several figures.
g is a U shaped or doubled spring, with its inner and fixed end, attached or con-
nected to an angle carrying bracket h, secured to the transome d², of a door frame d,
by small screws i, passing through upright slots 2, of the vertical web ¹, of the said
bracket. These said slots, admit of the springs position, with respect to the door being
changed, or raised, or lowered, as may be required.
The free and depending end of the spring 92, is inclined and hangs within the path
of the upper part or top edge 03, of a door Con closing.
The extreme.end of the said free end of the spring, is hooked downwards, and forms
a primary chec, whilst the incline, which is moved into position as represented
in dotted lines, on the closing of the door, forms an initial check, as the same
yields upward in obedience to the pressure exerted upon its underside.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is;
First Providing springs of door closing devices as heréin described, and set
forth, with an adjustable bar, hooked upon its underside, substantially as described,
and set forth.
Secondly-A door closer, the combination with a coiled spring, with looped ends
of an adjustment bar, as sét forth.
Thirdly The combination with a coiled spring, (connected to the door frame) of
an upright bracket, (connected to a door) whose upper end extends beyond the top of
the door, and which said parts, are constructed, arranged, and operate, and co-operate,
substantially as described and set forth.

page_text: Fourthly A door check, checking or neutralizing the slamming of a door,
by the inclined and free end of a spring, substantially as described, and set
forth.
:-
Fifthly Neutralizing or checking slamming, by the depending and yielding
free end of a bent or U spring, which when a door is closing, comes within the path
of its upper edge, substantially as set forth.
Sixthly The combination with the free end of a checking spring as described, of
a primary check g³ as set forth.
•
Seventhly-The combination of a door-check of the kind as herein described, of an
adjustable bracket as set forth.
Dated this 5th day of December 1889.
HYMEN LEVETUS.
By Henry Skerrett,
Agent for Applicant.