US1069076A

US1069076A - Door-controlling means.

Info

Publication number: US1069076A
Application number: US73149412A
Authority: US
Inventors: Henry G Voight
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-11-15
Filing date: 1912-11-15
Publication date: 1913-07-29
Anticipated expiration: 1930-07-29

Description

H. G. VOIGHT.

DOOR CONTROLLING MEANS.

APPLICATION FILED NOV. 15, 1912.

1 69,076. Patented July 29, 1913.

2 sinnmssnnm 1.

.UMBIA PLANOGRAPH CO.,WASHINGTON n c H. G. VOIGHT.

DOOR CONTROLLING MEANS.

AVPPLIOATION FILED NOV. 15, 1912. I

Patented July 29, 1913.

2 SHEETS-SHEET 2.

HENRY G. VOIG-HT, OF NEW BRITAIN, CONNECTICUT.

DOOR-CONTROLLING IVIEANS.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed November 15, 1912. Serial No. 731,494.

To all whom it may concern:

Be it lmown that I, HENRY G. VoIcHT, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Door-Controlling Means, of which the following is a full, clear, and exact descriptio This invention relates to controlling means for sliding doors of the type in which a movable arm is carried by the door and is suitably connected, as by another arm, to a relatively stationary abutment, so that said arm moves with the opening and closing of the door.

The object of the present invention is to provide means whereby the door may be locked open, this means in the present instance comprising a locking member adapted to engage and hold the movable arm against door closing movement. These and further advantages are described in detail in the specification following, taken in con-- nection with the accompanying drawings forming part thereof and illustrating a preferable embodiment of the invention.

In these drawings, Figure l is a view in elevation of a sliding door and its casing to which a door controlling means of the type described and equipped with the locking device of the. present invention, is applied. Fig. 2 is a fragmentary view in elevation of the door controlling parts detached and in door closed position, the locking device being shown as in inoperative position. Fig. 3 is a fragmentary elevation of the door controlling lever arms showing the locking device in operative position thereon. Fig. 4 is an edge elevation, partially broken off, of the parts shown in Fig. 3. Figs. 5 and 6 are top plan and front elevations respectively of the forward end of the locking bar.

One instance of the desirability of locking a door open is found in the case of the sliding door of an elevator well, whose car is used at times for the purpose of carrying freight and other large objects. In such cases the casing of the sliding door which is usually stationary relative thereto, and which with the sliding door, occupies substantially the entire width of the elevator well opening, is hinged so that the door and its casing may be swung outwardly as a whole to permit large objects to be loaded upon and be taken from the elevator car. With my locking device the sliding door minimum may be opened and locked opened, and the casing then swung outwardly, occupying a space.

Referring to the drawings by numerals, 1 Indicates a sliding door and 2 a relatively stationary casing which may be of the hinged type referred to.

3 designates a lever arm pivotally mounted at one end to the forward edge of the door 1 and pivotally connected at its other end to a second lever arm 4 whose free end is in turn pivotally carried by a bracket 5 secured to the stile of the door casing 2, for example, forming an abutment stationary relative to the door. The lever arm 4 adjacent its bracket carried end, is provided with a transverse extension 6 on which is journaled the piston rod 7 of a power closer cylinder 8 which in turn is pivoted at its lower end to the bracket'rod The power in the cylinder 8 acting against its piston and through its piston rod 7 and the transverse extension 6, normally tends to pull the lever arm 4 downwardly and to move the

levers

3 and 4 in a direction to move the door 1 to closed position. On the forward edge of thedoor, I provide any suitable form of manually operable controlling means for moving the

lever arms

3 and 4 in a direction to move the door to open position, this being possibleof accomplishment against the power of the closer cylinder 8 because of the leverage secured through these levers and transverse extension 6. I am showing for the purposes of illustration an operating handle 9 pivotally mounted on the forward edge of the door and provided with a circular casing 13 fitting over the forward pivoted 'end of the lever arm 3 and cooperating with said end to move said lever arms to open the door and to lock said arms against movement when the door is closed. The specific form of this device forms no part of the present invention, but is described and claimed in my prior Patent No. 1,028,833, and I am merely showing this construction to illustrate a controlling handle of this general type.

When the door is closed the lever arms will be in substantially the position shown in Figs. 1 and 2 of the drawings. When the door is opened the portions of these lever arms adjacent their pivotally interconnected ends, will move relative to and approach each other as suggested in Fig. 3 of the drawings. At a suitable point adjacent the pivotally interconnected end of the lever arm 3 I provide an abutment stud 11. At a point adjacent the pivoted end of the lever arm 4, as at 12, is loosely and pivotally mounted a locking bar 13. Secured to the lever arm 4 adjacent this point is a spring keeper 14 having at its end a tongue 15, this keeper normally resting over the face of the locking bar 13 and holding it loosely in pivoted engagement with the lever arm 4. At its free end the bar 13 is provided with a finger piece 16 and with a plurality of notches 17 in its upper edge, these notches being shaped to engage the abutment stud 11 carried by the lever arm 3. Intermediate its ends, the bar 13 is provided with an aperture 18, position-ed to fit over a stud 19 carried by lever arm 4 so that the locking bar may be seated on the lever arm and over said stud 19 and be held thereon by reason of the engagement of the spring keeper tongue 15 with the outer face of the locking bar. This is a position that the bar will occupy when not in use. To lock the door open it is employed as follows: Assuming that the operating handle 9 has been moved to operate the

lever arms

3 and 4 and open the door, say to its full extent, this will bring the abutment stud 11 on lever arm 3 in a position to be engaged by one of the notches 17 of the locking bar. The force of the power cylinder 8 will tend to move the adjacent pivotally interconnected ends of the

levers

3 and 4 apart, so as to move them to close the door, but this is absolutely prevented because of the engagement of the pivoted end of the locking bar 13 with the lever arm 4 and of the free end of said locking bar with the abutment stud 11 of lever arm 3, thereby preventing relative movement between these arms to move the door to closed position. I have only shown the locking bar 13 as provided with three notches, but desire it understood that this is only illustrative and that the bar may be provided with notches of varying number which may be spaced apart as desired, and furthermore that the bar 13 and the abutment stud 11 may be so positioned and proportioned, that, in combination with the notches, the points at which the levers may be locked against movement be at the various degrees of opening of the door. In addition, the provision of a plurality of recesses 17 permits the locking bar to adapt itself to variations in the opening movement of the door which may occur through wear of the parts or through misjudgment in assembling the same.

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

WVhat I claim is: v 1. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, operative connections between said door and abutment moving with the openlng and closlng of the door and normally tending to move said door toward closed position, means operative to a move said connections and said door to open position, and manually controlled means associated with said door and said operative connections and operative to lock said connections against door closing movement.

2. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, an arm carried by said door operatively connected with said abutment and moving with the opening and closing of the door, means normally tending to move said door toward closed position, means for moving sald arm to move said door to open posltion, and manually controlled means for locking said movable arm against door-closing movement. 7

In a device of the character described, in combination, a sliding door, a relatively stationary abutment, an arm carried by said door operatively connected with said abutment and moving with the opening and closing of the door, manually controlled means for moving said arm to move said door to open position, closing mechanism operatively connected to said arm to move the same in a direction to move said door to closed position, and means for locking said door opened against the action of said closing mechanism.

4. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, an arm carried by said door operatively connected with said abutment and moving with the opening and closing of the door, manually controlled means for moving said arm to move said door to open position, closing mechanism operatively connected to said arm to move the same in a direction to move said door to closed position, and manually controlled means for locking said arm against door closing movement through said closing mechanism.

5. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, an arm carried by said door operatively connected with said abutment and moving with the opening and closing of the door, means for moving said arm' ing of the door, means for moving said arm to move said door to open position, and manually controlled means for locking said arm against movement at a plurality of door opened positions.

7 In a device of the character described, in combination, a sliding door, a relatively stationary abutment, a lever pivotally connected to the door, a second lever pivotally connected to said first lever and operatively connected with said abutment, said levers moving with the opening and closing of the door, operating means carried by the door for moving said levers in a direction to move said door to open position, and locking means carried by one of said levers and adapted to cooperate with the other lever to lock said levers against door-closing movement.

8. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, a lever pivotally connected to the door a second lever pivotally connected to said 'rst lever and operatively connected with said abutment, said levers moving with the opening and closing of the door, operating means carried by the door for moving said levers in a direction to move said door to open position, and locking means carried by one of said levers and adapted to cooperate with the other lever to lock said levers against door-closing movement, in a plurality of door opened positions.

9. In a device of the character described, in combination, a sliding door, a relatively stationary abutment, a lever pivotally connected to the door, a second lever pivotally connected to the first lever and inoperative connection with said abutment said levers moving with the opening and closing of the door, manually controlled operating means carried by the door and adapted to move said levers in a direction to move said door to opened position, closing mechanism in operative connection with said levers and normally tending to move the same in a direction to move said door to closed position, and a locking member carried by one of said levers adapted to be engaged with the other of said levers to lock said levers against door-closing movement.

HENRY G. VOIGHT. Witnesses:

GWENDOLINE A. JAoKsoN, H. J. BROWNE.

Copies of: this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.