US1089963A - Door-opener. - Google Patents

Description

J. & L. REINERT.

DOOR OPENER.

APPLICATION FILED JULY 19. 1912 Patented Mar. 10, 19M

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DOOR OPENER.

APPLICATION FILED JULY 19. 1912.

1,089,963. Patented Mar. 10, 1914.

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Patented Mar. 10, 1914.

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JACOB REINERT AND LOUIS REINER'I, 0F PITTSBURGH, PENNSYLVANIA.

DOOR-OPENER.

Specification of Letters Patent.

Application filed July 19, 1912.

Patented Mar. 10, 1914.. Serial No. 710,466.

To all whom it may concern.

Be it known that we, JACOB REINERT and LoUIs Rniivnn'r, citizens of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Door-Openers, of which the following is a specification.

This invention relates to door openers, the object in view being to provide electrically controlled mechanism, whereby a door may I be released and partially opened by a person located at a distance from the door, the device being useful in private otlices, factories, ware-houses, and public places, or wherever it is desirable to control admission through a doorway by a person in authority located at a distance therefrom.

lVith the above and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is an elevation of a door and door frame, showing the mechanism of this invention applied thereto. Fig. 2 is a perspective view of the upper portion of the door and door frame, showing the resetting lever and its connections. Fig. 3 is an enlarged elevation of the main casing of the device with the adjacent face plate re moved. Fig. 4 is a horizontal section through the same, taken on theline 33 of Fig. 3. Fig. 5 is a face View of the door plate. Fig. 6 is a top edge view thereof. Fig. 7 is a detail horizontal section on the line 5-5 of Fig. 3. Fig. 8 is a detail hori- Zontal section on theline 66 of Fig. 3. Fig. 9 is a horizontal section on the line 1- of Fig. 3. Fig. 10 is a vertical sectional view of the upper pulley box. Fig. 11 is a diagrammatic view of the electrical connec tions. Fig. 12 is a top plan view of the resetting lever and the device for operating the same.

Referring to Figs. 1 and 2, 1 designates a door, and 2 a door frame, the door being provided with theusual knob 3 for operating thelatch bolt 4.

In carrying out this invention, we employ amain casing 5, embodying a cover orface plate 6, and secured to thedoor frame 2, approximately on the level of theusual door knob 3, as shown in Fig. 1. VVit-hin this casing and near the bottom thereof, is mount ed akick lever 7 of elbow form, the same being pivotally mounted on astud 8. The kick lever is provided with arounded nose 9 which works through an opening 10 in the inner edge of the casing, next to the door, so as to act against akick shoulder 11 carried by aface plate 12 secured to the door, as shown in Fig. 1, said face plate being also provided with a circuitbreaker operating shoulder 13, the purpose of which will hereinafter appear.

The kick lever is operated by means of acoiled expansion spring 14 which encircles a sliding stem orrod 15 mounted to operate through the outer wall of the casing, as shown, for example, in Fig. 9, said stem being pivotally attached at its inner end to the kick lever and being threaded, as shown, to receive atension nut 16, by means of which thespring 1 1- may be given increased or decreased action on the kick lever in accord ance with the size or weight of the door bcing operated upon.

t its rear extremity, the kick lever is provided with astud 17 that enters aslot 13 in atrip lever 19 pivoted, at 20, to abracket arm 2]., as shown in Figs. 3 and I. At its free end, thetrip lever 19 is provided withtrip lever shoulder 22 which is adapted to come into contact with and be held by ashoulder 23 on anarmature 21, the lastnamed element consisting of a vertically dis posed plate hinged on a vertical axis, as shown at 25, so as to swing toward and away from an electro-magnct 26 mounted within thecasing 5, as shown in Fig. 3. hen saidlever 19 is released by the movement of thearmature 21 toward themagnet 26, apin 27 on said lever comes into contact with acushioning spring 28,the end portion of which is deflected, as shown in Fig. l, so as to partially embrace and bear against thepin 27 to hold thelever 19 in a definite position, until it is again thrown outward in the act of resetting thekick lever 7, as will hereinafter appear.

Mounted in the upper portion of thecasing 5 is alatch bolt dog 29 mounted to turn on avertical pivot 30, and having arounded face 31, as shown in Fig. 7. The dog is also provided with ashoulder 32 which is adapted to be held by acooperating lip 33 on the armature 2i. In closing the door, the door latch comes into contact with therounded face 31 of said dog, and then snaps in behind the inner shoulder or face 34L of said dog, where it is held until the armature is attracted by the electro-magnet, permitting the dog to turn on its pivot 30'. This releases the latch and unlocks the door. Thedog 29 is restored to its holding position by aspring 35.

The resetting mechanism for returning thekick lever 7 to its retracted position comprises a resettinglever 35 which is connected fast by means of aset screw 36 to avvertical shaft 37 mounted inears 38 on abracket 39 secured to thedoor frame 2 above the door, as shown in Fig. 1. Mounted fast on thesame shaft 37 is acrank arm 40, from which a push rod all extends to aslide rod 42, to which it is pivotally connected, at 43. Thisslide rod 12 extends through suitable guides 14: on thebracket 39, and is connected by means of a coupling -15 to a reset-ting cable 16. This cable passes through ahorizontal cable tube 17 which is secured to the door frame at one end by means of atube holder 18, and at the other end to apulley box 49 secured to the door frame at one of the upper corners thereof, as shown in Fig. 1, said box comprising aremovable face plate 50. Within thebox 49 is mounted a revolvingpulley 51, around .which thecable 46 passes, said box having openings to receive the cable, and also to receivebushings 52 and 53, thebushing 52 having the adjacent extremity of thecable tube 47 inserted therein, as shown in Fig. 10. Theother bushing 53 receives the upper extremity of a second vertically extendingcable tube 5 1, the lower end of which enters apulley box 55 secured to theface plate 6 of thecasing 75, hereinabove described, and as shown in 1. Within thebox 55 is mounted apulley 56 which turns on a horizontal axis, as shown, and around which the cable e6 passes. The lower end of said cable has connected thereto aneye 57 which is fastened, at 58, to the backwardly extending arm of thekick lever 7.

The resetting lever is actuated by means of aroller 59 on abracket 60 attached to the door near the upper edge thereof as shown in Fig. 1. It will now be understood that as the door is swung open, theroller 59 comes into contact with the resettinglever 55, thereby moving said lever outward and through the medium of the connections described drawing on thecable 46, thereby swinging thekick lever 7 back to its initial position, where it is held by the engagement of theshoulders 22 and 23 on thearmature 24 andtrip lever 19, respectively, the parts again assuming the position shown in Fig. 4.

In order to enable theroller 59 to pass by thelever 35 in the closing movement of the door, saidlever 35 is provided with apivoted extension 61. Thistripping extension 61 is pivotally connected at 62 to the osaeesmain body 35 of the lever, and is provided with astop arm 63 which comes into contact with thestop flange 64 on thelever 35, aspring 65 serving to hold thetripping extension 61 in longitudinal alinement with themain body 35 of the lever. As theroller 59 returns, it swings the trippingextension 61 on itspivot 62, and after passing by the lever, the extension 61is returned by thespring 65 to its normal position, so as to again be acted upon by theroller 59 when the door isthrown open.

In order to break the circuit, when the door is released and thrown open, we provide a circuit breaker which is shown in detail in Fig. 8, embodying twospring contactplates 66 and 67 to which the circuit wires are connected, said plates being fastened within the casing by means of a screw orbolt 63, and properly insulated from the casing, as shown at 69.

Mounted adjacent to the spring contacts referred to is acircuit breaking lever 70 pivotally mounted, at 71, and having arounded nose 72 which projects through anopening 73 in thecasing, so as to be acted upon by theshoulder 13 on thedoor plate 12, hereinabove described. Thecircuit breaking lever 70 is provided with aninsulated shoulder 74, which operates against thecontact plate 66, as shown in Fig. 8, so that when the door is closed, theshoulder 13 presses against thenose 7 2 of the lever 7 O and holds the twocontact plates 66 and 67 in electrical contact with each other. As

soon as the door is thrown open, thespring contact plate 66 moves thelever 70 outward and breaks the contact and consequently the circuit, thus allowing thearmature 24 to return to its normal position before the door is pushed open and the resetting means actuated, thereby economizing in the consumption of the current.

Referring now to Fig. 11, the battery, in-

dicated at 75, may be located at any suitable point, and also the circuit closer or controllingswitch 76. From theswitch 76, onecircuit wire 77 leads through thebattery 75 to the electro-magnet 26. From the magnet, awire 78 leads to thecircuit breaker 70. From the circuit breaker, awire 79 leads back to theswitch 76.

It will now be understood. that when theswitch 76 is closed, and the circuit established, the electro-magnet 26 will attract thearmature 24, thereby causing theshoulder 23 to be withdrawn from engagement with theshoulder 22, and also causing thelip 33 to recede from behind theshoulder 22 of thelatch bolt dog 29. This simultaneously releases thetrip lever 19 and saiddog 29. The dog is thereby allowed to turn to release the latch bolt, and at the same time thespring 14 acts to turn thekick lever 27 thenose 9 thereof acting on theshoulder 11 of theplate 12, to throw the door open. As the door starts to open, theshoulder 13 moves out of contact with thenose 72 of thecircuit breaking lever 70, thereby breaking the circuit and not using any of the current, until the door has been returned to its locked position, and themain switch 7 6 again operated to release the door in the same manner as previously described.

hat is claimed is:

1. An electrically operated door opener, comprising an electric circuit, an electromagnet in said circuit, a circuit closing switch, an armature, a spring thrust kick lever mounted on the door frame and coperating with the door, a trip lever having a jointed connection with said kick lever and held by the armature when the circuit is open and released by the armature when the circuit is closed, and a circuit breaker which is rendered effective when the door is released.

2. An electrically operated door opener, comprising an electric circuit, an electromagnet in said circuit, a circuit closing switch, an armature, a spring thrust kick lever mounted on the door frame and cooperating with the door, a trip lever having a jointed and sliding connection with said kick lever and held by the armature when the circuit is open and released by the armature when the circuit is closed, and a circuit breaker which is rendered effective when the door is released and held ineffective by the door when closed.

3. An electrically operated door opener, comprising an electric circuit, an electromagnet in said circuit, a circuit closing switch, an armature, a spring thrust kick lever mounted on the door frame and cooperating with the door, said kick lever being held by the arn'iature when the circuit is opened and released by the armature when the circuit is closed, a circuit breaking 1ever on the door frame held back when the 1 door is closed, and two circuit breaking contacts, one of which consists of a spring acting to press said circuit breaking lever outwardly as the door is released.

In testimony whereof we ailix our signatures in presence of two witnesses.

JACOB REINERT. LOUIS REINERT. \Vitnesses:

ELIZABETH WV. SNYDER, JAoon Mun'rz.

(lopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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