US381725A

US381725A - schneider

Info

Publication number: US381725A
Authority: US
Publication date: 1888-04-24
Anticipated expiration: 1905-04-24

Description

(No Model.) 3 SheetsSheet 1. J. SCHNEIDER.

ELECTRIC DOOR OPENER.

No. 381,725. Patented Apr. 24, 1888.

Eilllillliilllllllllllilllll 1 ATTEST:

(No Model.) 3 Sheets-Sheet 2.

J. SCHNEIDER.

ELBGTRIGWDOOR OPENER.

No. 381,725. Patented Apr. 24, 1888.

Fig. E.-

(No Model.) y a sheets-sheen 3. J. SCHNEIDER.

ELECTRIC DOOR OPENER.

NO. 381,725. Patented Apr. Z4, 1888.

Unirse .STATES Parenti* @lirica JOHN SCHNEIDER, OF NEVI YORK,- N. Y.

ELECTRlC DOOR=OPENER.

SPECIFICA-:NGN forming part of Letters Patent NO. 391,725, dated. April 24, 1888.

Application tiled June 10, 1387. Serial No. 240.8%.

To aZZ whom t may concern.-

Beit known that l, .Tous SCHNEIDER, a citizen of United States, anda resident of New York, county and State of New York, have in vented certain new and useful Improvements in Electric Door-Openers, of which the following is a specification.

The invention relatestotlie mechanical construction of an electric door lock and opener.

The object ofthe invention is to provide simplicity ot construction, and especially simplicity ot' operation, as well as compactness, which is an element highly desirable in all forms of door-locks.

Figure l is a general front view of the device with the cover removed; Fig. 2 is a sectional `view of Fig. l at the line X. Fig. 3 is a two-sided view of the catch or latch. Figs. 3 and 3" are inodilied forms of the latch. Figs. el and 5 are different views of the bent lever and retractiie spring. Figs. 6 and 7 represent modifications of Figs. 4 and 5. Figs. 8 and 9 are different views of the armature. Fig. 10 is a view of the latch audits rectractile spring,

being a rear view ofthe latch as shown in Fig. 1. Figs. 11 and 12 are diti'erent views of the spring i'or throwing open the door when the electric lock releases the door. Fig. 13 shows the spring E in operative connection with the electric lock. It shows the loe-k screwed to the door, which is represented in elevation and partly broken away. The arrow indicates the direction in which the door opens when the magnet attracts its armature, the spring forcing it in the said direction. Part of the casing of the lock is also broken away to show the magnet. Fig. la shows on an enlarged scale the surface g pressing obliquely upon the edge of the lock-latch tu, which is only partly represented. The arrow upon the arm Z indicates the direction of movement of the said arm. Fig. 15 is a view showing the latch sc in operative connection with the lock. The latch :rin this figurelis mounted upon the door b and the latch to uponthe jamb.

The device consists of the combination of a casing, a, which fits in the door, shown partially by b,- anelectro-niagnet, c, supported in the casing and having its arms parallel to the back of the easing; an armature, d, of soft (No model.)

iron, riveted or similarly xed to a brass bearing, e, which is rotatable upon the iixed screwj', the said armature having at the end opposite the bearing a thinner portion, g, and projection or stop h, and a retractiie spring, i; a bent lever having a curved arm, 7c, and a straight arm, Z, the curved arm having a notch, m, which normally contains the free end of said armature; a retractile spring, n, secured to said bent arm, curved over the bear ing o of the bent lever, and pressing against a projection, p, of said casing; an enlarged free end to said straight arm Z, having upon its end a surface, g, which is curved in reference to the center of the bearing of the lever as its central point, the said surface being cylindrical in its nature and normally pressing against the rear surface of the latch; a latch having hearings r; a journal, s; a coiled retractile spring, t, surrounding said journal, one end of saidspring passing througha notch, u, in the latch and pressing upon the oasinga, the other end ofthe spring pressing upon the latch itself; a projection or stop, o, which strikes against the casing a to limit its niotions, a curved surface, w, against which the second latch, which belongs to the doorjamb F, strikes when the door is being shut; a groove, c, in the lirst latch, into which the latch fr enters when the door is shut, and a recess, A, in the easing, in which the iirst latch operates, the axes of the armature-journal and of the bent-lever journal being parallel to each other, and the Orthographie projection of the axis of the journal of the first-named latch upon the other named axes being perpendicular to said axes. The irst-namcd latch may, for convenience, be termed the lock-latch. The latch fr may he fixed to the door-jamb For movable therein. The circuit B, which passes through the electro-magnet, includes any suitable electric generator and push-button, which are not shown in the drawings.

In Figs. 6 and 7 the curved surface q is re placed by a rotary curved surface belonging to the little roller C, supported upon a bearing, D,which is fixed to the straight arm Z of the bent lever.

The operation of the device is as follows: Vhen an electric current of suiiicient power IOO passes through the electro-magnet, its armature is attracted, thereby releasing the bent lever, which, however, does not move except by the force of the spring E,Which is ixed to the door-jamb F and presses upon the door b. The spring t presses upon the lock-latch and rotates the same through an angle of about ninety degrees. The rotation of the lock-latch causes the surface g to slide more and more rapidly to the right. Just as soon as the latch escapes from the lock-latch the latter turns back to its normal position on account of its retractile springt, the bent lever returns to its normal position on account of its retractile spring n, and, the circuit being broken, the armature returns to its normal position on account of its retractile spring i. If the door is pulled upon with an effort to open the same before the circuit is compl-eted,it `will be found that the device serves as a very efficient lock, because the straight arm Z presses approximately perpendicularly upon the rear surface ot' the lock-latch, and because the free end of the bent arm k presses at right angles upon the armature.

The object of having the arm 7c curved is for the sake of strength.

While in Fig. 2 the retractile spring t of the latch is plainly seen to be .located upon the shaft of the latch, yet the location of this Spring may be changed, if desired. In Figs. 3" and 3b this retractile spring is located upon a rod, H,which is carried by the latch, but is independent of the shaft I of the latch.

On account of the peculiar construction of the device hereinbefore described, the closing of the electric circuit will cause the latch to release the door even it a person or other object is pressing against the door.

When the armature is attracted, the latch being attached to the door in Fig. 15, rotates the lock latch w and causes the surface g to slide from the said latch and move the door in the direction ofthe arrow shown in Fig.15. Consequently the latch and door b act in a similar manner when the latch .fc is attached to the jainb and the lock-latch w to the door, as in Fig. 13.

I claim as my invention 1. In an electric door opener and lock, the combination of a lock-latch, a magnet-armature, and a bent lever, one arm pressing upon the lock-latch in a direction to partially resist the movement of the lock-latch and the other arm 'pressing upon the armature in a direction to form au approximate right angle with said armature.

2. In an electric door opener and lock, the

combination of a lock-latch, a magnet-arma ture, and a bent lever, one arm pressing upon the lock-latch in a direction to partially resist the movement of the lock-latch and the other arm pressing upon the armature in a direction to form an approximate right angle with said armature. 3. In an electric door opener and lock, the combination of an electro-magnet, a pivoted armature therefor having a retractile spring tending to hold the armature from the magnet, a shoulder or projection upon the armature on that side opposite to the magnet, a pivoted bent lever having one arm rectilinear and the other arm curved, a notch upon the end of the curved arm, a retractile spring tending to press the notch m of the curved arin upon the end of the armature in a direction to form an approximate right angle between said armature and the curved arm, and an enlarged portion upon the rectilinear arm,having a curved surface pressing upon the lock-latch and tending to hold the same in normal position, the said lock-latch being pivoted in a direction at right angles to that of the bent lever and being provided with a retractile spring which tends to rotate the latch.

In testimony thatI claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 9th day of May, 1887.

. JOHN SOHN EIDER.

Witnesses:

EDWARD P. THOMPSON, HAROLD G, HENDERSON.