US524769A - Door-operating device - Google Patents

Description

L t e e h S W e e s 3 m EW LE, LD G m HA m HP R0 m G0 D (No Model.)

N0. 524,769. Patented Aug. 21, 1894.

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G. RISO HMULLER. DOOR OPERATING DEVIUE.

No. 524,769. Pate'nted'Aug. 21, 1894.

a Sheefs-Sheet 3.

G. RISCHMULLER. DOOR OPBRATINGDEVIGE.

N0.-524,"769. Patented Aug. 21, 1894..

1 UNITED STATES" PATENT I ()FFICE.

GEORGE RISCHMULLER, OF SAN FRANCISCO, CALIFORNIA.

DOOR-OPERATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 524,769, dated August 21, 1894.

Application flled October 1, 1892.

To all whom it may concern:

Be it known that I, GEORGE RISCHMULLER, a GIIIZ'BD of the United States, residing at San Franc1sco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Door-Operating Devices; and I dohereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to an improved dooroperating device, designed more especially. for operating or opening and closing a street, or ground-floor, door from an upper floor, and it has for its object to provide for the direct transmittal of the power of the hand-actuated lever to the door or object to be operated upon; to effect both the opening and closing of the door from the same elevated or distant point; to provide for. the closing of the door after opening of the same by a reverse movement of the hand-actuated lever; to prevent the sudden closing or slamming of the door from currents or drafts of air through the house;

to dispose or inclose the door operating mechanism properly, and to lock or clutch the door-latch actuating mechanism against operation when the door is opened in the usual way by the application of the hand to the knob; and to these ends the invention con sists of a certain novel combination and arrangement of parts, substantially as hereinafter more fully disclosed and pointed out in the claims.

In the accompanying drawings,-F igure 1 is a broken perspective view showing my invention, in part, as applied for use to a street, or ground-floor, door. Figs. 2, 3 and 4 are reverse side views, and an edge view, respectively, of the bracket-plate, carrying the primary lever for actuating the door-latch, the retracting dog and the clutch or look for said lever. Fig. 5 is a partly horizontal section and partly plan view of the same parts, also showing broken-away the lever that immediately acts upon the primary lever of the doorlatch retracting dog. Figs. 6 and 7 are side @of the latch retracting dog.

and plan views, respectively, of a bell-crank,

Serial No. 447,546. (No model.)

with its actuating levers, that connects with the lever acting upon said primary lever. Figs. 8 and 9 are front and plan views of the lever adapted to act upon said primary lever. Figs. 10 and 11 are a side and a sectional view Figs. 12 and 13 are a side view, and a plan view, respectively, of the hand-actuated lever,.with its guide-bracket and links adapted to .connect by lines or wires withthe actuating levers of the aforesaid bell-crank, and Figs. 14, 15 and 16 are a broken perspective view, and side views at right angles toeach other, respectively, of a modification of the aforesaid bellcrank and its actuating levers, for use in a turn or angle of the stairway down which the lines or wires extend.

In carrying out my invention, I provide a centrally pivoted lever A, let into the stairway casing at the head of the stairs, upon an upper floor, and having a knobbed handle a standing at an obtuse angle, or diagonally, thereto, with its knob projecting through an arcuate guide-slot a in a plate or board covering a recess in said casing which recess receives'said lever and its handle, to provide for the convenient manipulation of the lever. The lever A has at its ends two short links 0!, a and to these are designedto be connected the upper ends of two stout wires or lines B, the lower ends of which are also connected to short links 0 0 carried at the ends of a lever C centrally pivotedupon the uprlght arm (1 of a bracket D screwed or secured to the base or sill of the studding of the groundfloor hall-way, near the rear edge of the door. Upon the same pivot as the lever C, is also centrally pivoted a bent leverE connected at one end by a short link c to one end of the lever C. r v

The opposite or forward. lower end ofthe bent lever E is connected by a link a to one end of a horizontal bell-crankl-F, pivoted or hung upon a pivot-stud of the bracket D, the

opposite free end of the bell-crank F being lindric portion or stud t' adapted to engage one arm of a. right-angled lever I, hung upon a pintle or pivotp supported upon and at the inner edge of a vertical plate J secured or screwed to the hinged post of the door-frame.

K is a latch or dog having its notched edge adapted to engage a beveled-edge of the lever I, and lock it against movement, and pivoted to swing or move in a vertical plane upon a pivot or stud it supported in abracket h projecting from the plateJ. The upper arm of the latch or dog K is held by a headed end thereof, and has a limited amount of play, in the slotted end of a slide or push-bar L having a reduced cylindric endj sliding in an aperture in the plate J and projecting thereat toward, and so as to be engaged by, the back edgeof the door.

The lever I has one arm carried downward and outward and to the free end f thereof is connected a wire or line g passing between the carpet-strip and floor and connecting withan angle-lever M pivoted upon a plate N, secured in the door-jamb, near the floor.

O, is a dog, hung or pivoted upon a pintle or pivot, in the opening of a frame-like casting or plate P, integral With the catch or socket plate U fastened to, and flush with, the doorjamb, said dog being connected, at its upper end by means of a wire it with the upper end of the angle-lever M. The pintle or pivot of the dog 0, also affords a support for a coiled spring Z, one end of which catches or bears upon one edge of the opening of the plate U, while the other end bears upon the outer or upper end of the dog 0, to normally retain the latter in the position shown in Figs. 1 and 10, with its inner or acting end retracted, said end of dog being directly opposite the point of re- 1cetptlzlion for, and in engagement with, the door In Figs. 14, 15 and 16 is shown provision for adapting the mechanism or invention to turns or angles in stairways, the same consisting of tri-armed levers A A arranged in planes at right angles to each other, or at other angles according to the angle or turn in the stairway, and connected together by a link A having its ends attached to an arm of each lever, two wires or lines A being connected to the other two arms of each lever and answering to the continuous wires or lines above described.

In operation, it .will be seen that by manipulating or moving the knobbed handle a of the lever A in the required direction the wires or lines B B will be drawn upon, pulling the lever O rearward, causing the lever E, through the link e, to actuate the bell-crank F, in turn similarily moving, through the link f, the lever G. The lever G will thus force inward one arm of the lever I effecting through the wire 9 the actuation of the lever M, pulling through the wire it the outer end of the dog 0 downward, causing the inward movement of the lower end of said dog which, by its engage ment with the door-latch, disengages the latter from the socket or catch of the door-jamb.

The continued movement of the hand-lever brings the stud i of the leverG into engagement with the plate H of the door, and thus results finally in opening the'door.

It is apparent that the door being under the control of the opening and closing wires or lines the door can be held open at any reguired angle, and be prevented from slamming or suddenly closing. It will alsobe seen that the reverse movement of the hand-lever will, through the aforesaid parts, including the two wires or lines, effect the closing of the door.

It is obvious that, should the wires B B become inoperative or caught in the wall as the door is closed by hand, the lever G would force the opposite end of the lever I inward and, thus throwing the other end of the latter lever rearward, would cause the dog 0 to unlatch the door. This, it will be seen, however, is overcome by the use of the latch or dog K locking the lever I when the door is open, and yet disengaged from the-leverl when the door is closed as above described to permit of the unlatching of the door when the lever A is operated;

I claim and desire to secure by Letters Patent 1. The combination with a door of a dooraotuating lever; a bell crank lever supported at some convenient point; two vertically 'swinginglevers connected at one end, and fulcrumed on the same pin; links connecting the arms of the bell-crank lever to the door actuating lever, and to the free end of one of the vertically swinging levers; and connections between the second lever and the handle of the apparatus, all substantially as shown.

2. In a door-operating device, the combinati on with the door-unlatching mechanism and its initially operating lever hung upon the hinge-post, and means for operating said lever, of a dog or latch engaging, and temporarily holding said lever against movement, and means for tripping or disengaging said dog or latch from said lever, substantially as set forth.

3. In a door-operating device, the combination, with the door-unlatching mechanism and its initially operating lever, hung upon the hinge-post, and means for operating said lever, of the dog or latch engaging said lever, and a slide or push-bar engaging said dog or latch and itself engaged by the back edge of the door as the latter is closed, substantially as specified.

4. In a door-operating device, the combination, with the door-unlatching mechanism and its initially operating lever hung upon the hinge-post, and formed of a right angled arm, arranged at one side of its pivot, and an arm standing ata right angle to the aforesaid arm, upon the opposite side of its pivot and means for operating said lever through one of said arms, of a dog or latch engaging the other arm of said lever and temporarily holding it against movement and a slide or push-bar engaging said dog or latch and having a re- ICO armed levers, to accommodate turns in the stairway one connected to said lines or wires, and means for actuating said levers by addi- 15 tional wires or lines connected to the other of said levers, substantially as set forth.

In testimony-whereofl affix my signature in presence of two witnesses. V

GEORGE RISCHMULLER.

Witnesses:

J NO. L. BOONE, CHAS. D. WHEAT.

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