US1069077A - Door-controlling means. - Google Patents

Description

H. G. VOIGHT.

DOOB. CONTROLLING MEANS. 'APPLIOATION FILED NOV. 27, 1912.

1,069,077w Patented July 29, 1913.

Fig-.5-

COLUMBIA PLANQGRAPH 60.. WASHINGTON. D, c,

UNITED STATES PATENT OFFICE.

HENRY G. VOIGI-I'I, on NEW BRITAIN, CONNECTICUT.

DOOR-CONTROLLING- MEANS.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed November 27, 1912. Serial No. 733,735.

the door may be locked from the inside and Y may be unlocked readily from the outside but only by the use of a proper key. These and other advantages are described in detail in the following specification taken in connection with the accompanying drawings forming part thereof and illustrating a preferable embodiment ofthe invention.

In these drawings, Figure 1 is a fragmentary view in side elevation of a door control constructed in accordance with the present lnventlon. F 1g. 2 1s an edge elevation, partly in section, of the parts shown in Fig. 1. Figs. 3 and 4 are views of the unlocking key.

In the present case, a full detailed de scription of the door controlling means employed is unnecessary since the same is fully set forth in my Patent No. 1,041,706, dated October 15th, 1912. Suffice it to say that the controlling means comprises generally two interconnected toggle arms pivotally secured respectively to the forward edge of the sliding door and to a stationary abutment in rear thereof, these arms swinging with the opening and closing of the door and being straightened out in horizontal alinement when the door is closed, thereby providing a dead center lock and necessitating that this horizontal alinement be broken before the door can be moved to open position. In the present case, therefore, I am illustrating and describing only such parts of the door control as are essential to an understanding of the present invention.

In the drawings,'1 designates a sliding door, and 2 a bracket plate secured thereto adjacent its forward edge.

3 represents one of the pair of toggle arms of the door control, this arm 3 being pivoted to the bracket plate 2 as at 4.. When the toggle arm 3 stands in the horizontal posi- 1,041,706 aforesaid.

upwardly from looking tion shown in Fig. 1 of the drawings, the door 1 is in closed locked position, inasmuch as the toggle arms are in alinement, as will be seen by reference to my Patent No. When the toggle arm 3 is swung on its pivot from the position shown in Fig. 1, the door may be moved to open position. The particular means employed herein for swinging the toggle arm 3 comprises an arm 5 pivotally mounted at 7 upon the bracket plate 2 and having a cam slot therein in which slot stands a pin 6 carried by the arm 3.

8 designates an operating handle pivoted at 9 to the bracket plate 2 and provided with a pin or shoulder 10 extending from its rear face and arranged to engage the edge of the arm 5 and swing the same in a direction to lift the toggle arm, the cam slot portion of the arm riding over the pin 6 and by reason of its arc, lifting said pin and its toggle arm position. The pin 10 is moved to effect this operation by swinging the handle 8 to the left from the position shown in Fig. 1. It is desirable to hold the operating arm 10 against outward displacement so that it always is in proper position for cooperatioii with the unlocking mechanism hereinafter described and so that it cannot be pulled outwardly and into the path of the elevator car, this last being possible as in some cases the distance between the edge of the car and the face of the door is rather limited. To this end the lower edge of the bracket plate 2 is offset at 11 and formed on an arc with the pivot point 9 as the center, the operating handle 8 being similarly offset at that point and provided with a rearwardly extending lug 12 in interlocking engagement with the rear face of the offset and holding the handle against outward displacement while permitting free swinging movement thereof.

13 designates a stop pin for the handle 8 positioned to limit its swinging movement in one direction. 14 designates a second stop member arranged intermediate the ends of the handle and designed to limit its swinging movement in the opposite direction. In the particular embodiment herein, the stop member 14 performs a second function in that it is adapted to act as a roll-back and to swing the handle member 8 in a direction to release or unlock the door. In the drawings, this stop comprises a bar 14 having'an offset arm extending therefrom and pivoted at 15 on the bracket plate, the ends of said bar 1 1 preferably carrying one or.

which may be employed at the outer side of the door 1, and which may connect in any suitable manner with the spindle 16 so that the latter may be turned. In the drawings 1 I have shown the simplest possible form ot" connection in which the outer end of the spindle 17 is provided with a squared end 18 positioned in a countersunk pocket formed 1 in the outer face of the door so as not to interfere with the sliding of the door. The" key 19 may connect directly with this squared end 18 of the spindle, said key having an end opening arranged to fit on the squared end 17 of the spindle. By turning the key 16, the stop member 1 1 is turned so that one end will swing in a direction to move the handle 8 and in turn swing the cam arm 5, which arm in turn lifts the toggle arm 8 unlocking the door and starting it on its opening movement. By positioning the unlocking member 14 intermediate the ends of the operating handle, a maximum leverage is secured whereby the unlocking operation, by turning the spindle 17, is accomplished with minimum effort. After the key 19 has been used to unlock the toggle arm 3, the door may be fully opened by pressure thereagainst in door opening direction.

Nhile I have described herein a specific embodiment of my invention, it is understood that various structural changes are possible within the spirit of the invention and the scope of the appended claims.

IVhat I claim, therefore, and desire to secure by Letters Patent is:

1. In a device of the character described, a sliding door, a relatively stationary abutment, toggle arms connecting said door and abutment moving with the opening and closing of the door and adapted to be locked against door opening movement when said door is in closed position, a controlling handle carried by said door and cooperating with said toggle arms to release the same from locked position, and means independent of said handle and operable from the opposite side of the door for releasing said arms.

2. In a. device of the character described, a sliding door, a relatively stationary abutment, toggle arms connecting said door and abutment moving with the opening and closing 01": the door and adapted to be locked against door opening movement when said door is in closed position, a controlling handle carried by said door and cooperating with said toggle arms to release the same.

from locked position, and key controlled means independent of said handle and operable from the opposite side of the door for releasing said arms.

3. In a device of the character described, a sliding door, a relatively stationary abut.- ment, toggle arms connecting said door and abutmentmoving with the opening and closing of the door and adapted to lock said door against opening movement upon the closing of the door, a controlling handle pivotally carried by the door and in operative connection with said toggle arms to move the same from locking position, and means independent of said handle and controlled from the opposite side of the door positioned and adapted to engage said handle intermediate its ends to swing the same in a direction to move said arms from looking position. i

4. In a device of the character described, a sliding door, a relatively stationary abutment,-toggle arms connecting said door and abutment moving with the opening and closing of the door and adapted to lock said door against opening movement upon the closing'of the door, a controlling handle pivotally carried by the door and in operative connection with said toggle arms to move the same from looking position, means independent of said handle and controlled from the opposite side of the door positioned and adapted to engage said handle intermediate its ends to swing the same in a direction to move said arms from looking position, and means guiding the movement of said handle and maintaining itin the same plane.

5. In a device of the character described, a sliding door, a relatively stationary abutment, toggle arms connecting said door and abutment moving with the opening and closing of the door and adapted to lock said door against opening movement upon the closing of the door, a controlling handle pivotally carried by the door and in operative connection with said toggle arms to move the same from looking position, means independent of said handle positioned to engage and stop the same in door closed position, said means being operable from the opposite side of the door to swing said handle in a direction to move said arms to unlocked position. i

6. In a device of the character described, a sliding door, a relatively stationary abutment, toggle arms connecting said door and abutment moving with the opening and closing of the door and adapted to lock said door against opening movement upon the closing of the door, a controlling handle piv otally carried by the door and in operative connection with said toggle arms to move the same from locking position, means pivotally carried by the door independently of said handle and positioned to engage said handle intermediate its ends to stop the same in door closed position, said stop means being operable by key control from thevopposite side of the door to swing said handle in a direction to move said arms to unlocked position.

7. In a device of the character described, a sliding door, a relatively stationary abutment, toggle arms connecting said door and abutment and moving with the opening and closing of the door, an operating handle car ried by and moving relative to the door and operatively connected to said arms to move the same in a direction to open said door, a lug carried by said handle, and a curved guide plate fixedly carried by said door and interlockingly engaged by said lug.

S. In a device of the character described, in combination, a sliding door, means carried thereby for locking said door in closed position, a manually controlled operating member carried by said door mounted for movement relative thereto and adapted to be moved to release said locking means and to move said door toward open pos1t1on, and guiding means fixedly earned by said door and interlockingly engaging with said operating member.

9. In a device of the character described, in combination, a sliding door, means movably connected therewith adapted to be po sitioned to lock said door closed, an operating handle pivotally carried by said door, means controlled by the movement of said handle to inoperatively position said locking means and to move said door toward open position, a guiding plate fixedly carried by said door and having a curved guiding edge, an oiiset carried by said handle interlockingly engaging with said guiding plate and guiding on its curved edge, and means limit ing the movement of said handle in both directions.

HENRY G. VOIGHT. l/Vitnesses GwENDoLINE A. JACKSON, M. S. VVIARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, i Washington, I). G.

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