US804837A - Two-bolt door-lock. - Google Patents

Description

15'. H. FAY.

TWO BOLT DOOR LOOK.

APPLICATION FILED SEPT. 29. 1904.

2 SHEETS-SHEET 1.

PATENTED NOV. 21, 1905.

No. 804,837. PATENTED NOV. 21, 1905.

P. H. FAY.

TWO BOLT DOOR LOCK.

APPLIOATION FILED SEPT. 29, 1904.

2 SHEETS-SHEET 2.

FRANK H. FAY, OF HOXIE, KANSAS.

TWO-BOLT DOOR-LOCK.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed September 29, 1904. Serial No. 226,540.

1'0 a whom it may concern/.-

Be it known that I, FRANK H. FAY, a citizen of the United States, residing at Hoxie, in the county of Sheridan and State of Kansas, have invented certain new and useful Improvements in Two-Bolt Door-Locks, of which the following is a specification.

The primary object of this invention is the provision of a lock of novel construction specially designed for doors and which is free of springs and capable of utilizing both the latch and the lock-bolts for securance of the door, the latch being held by means of a key or like part inserted in the lock and serving in turn to prevent operation of the lock-bolt by the key.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the detailsof construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.

While the essential and characteristic fea tures of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is a front view of a lock embodying the invention, the face-plate being omitted. Fig. 2 is a View similar to Fig. 1, showing the lock-bolt projected and the key inserted for securing the latch. Fig. 3 is a transverse section of the lock on the line 00 w of Fig. 1. ,Fig. 4 is a perspective view of the pivoted latch-actuator. Fig. 5 is a detail perspective View of the lock-bolt and the tumbler cooperating therewith, the parts being separated. Fig. 6 is a detail perspective view of the latch. Fig. 7 is a detail perspective view of the knob-operated tumbler.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The invention may be adapted to the different types of locks provided with knob-operated latches. The casing for inclosing the operating parts is of the accustomed construction, comprising abox 1 and face-plate 2, the latter being secured to the box portion by any suitable fastening means. The latch-bolt is gravity-actuated and comprises the latch 3 and pivoted latch-actuator 4. The pivoted latchactuator comprises the horizontal weight-bar 5, upright 6, horizontal arm 7 and vertical arm 8. The portion of the upright 6 adjacent to the weight-bar 5 is reduced upon opposite sides to receive the spaced members of the latch. which are pivoted thereto by means of the pin 9. The latch-actuator is pivoted at its upper forward corner to the casing, as indicated at 10, thereby throwing the preponderance of weight in the rear of the upright 6, with the result that the latch 3 is normally projected. When the latch is repressed or moved inward to permit opening or closing of the door, its actuator turns upon the pivotsupport 10, the weight-bar 5 moving inward and upward,as will be readily understood. The knob-operated tumbler 11 has one arm 12 arranged in the path of the horizontal arm 7 and its other arm 13 overlapping the arm 8 and adapted to engage with a shoulder 14, formed near the upper end of said arm. The arm 13 has a pendent portion from which projects a stud 15, so as to engage with the inner edge of the vertical arm 8 and move the latch-actuator when the tumbler is turned in one direction, the arm 12 serving a similar purpose by engagement with the horizontal arm 7 when the tumbler is turned in the opposite direction. The latch 3 is reversible to admit of the lock being used upon either a right-hand or a lefthand door. This is effected by removing the pin 9 and turning the latch and replacing the pin.

The lock-bolt 16 has a longitudinal slot 17, through which is passed a pin or stud 18, forming a part of or applied to the casing. The tumbler 19, cooperating with the lockbolt, is pivotally mounted upon the pin or stud 18 and is weighted at 20. An extension 21 projects laterally from the tumbler, so as to overlap the inner portion of the lock-bolt and engage upon either side of a stop 22 thereof, so as to hold the lock-bolt either projected or withdrawn. When operating the lock-bolt by means of the key, the tumbler is lifted to move the extension 21 out of the path of the stop 22, thereby admitting of a free sliding movement of the lock-bolt when shot either inward or outward. As the lock-bolt reaches the limit of its movement in either direction the weighted end of the tumbler 19 descends and causes the extension 21 to engage with the stop 22, thereby fixing the position of the lockbolt in the manner well understood.

The lock-casing is provided with a keyhole 23 adjacent to the inner end of the weight-bar 5 of the pivoted latch-actuator, so that upon the introduction of a key 24 into said keyhole the latch-actuator is prevented from opmay be arranged in any position to admit of the key 24 or like part obstructing the movement of the latch-actuator,- whereby the latter may be utilized at will in the capacity of a lock-bolt.

It is proposed to utilize the latch-actuator as lock means for the tumbler, thereby preventing opening of the look at stated times. For this purpose the latch-actuator is pro vided with an extension 25, projected so as to extend into the path of the tumbler to prevent its operation without moving the latchactuator. As indicated, the extension projects into the path of the lateral extension 21 of the tumbler. When the tumbler is lifted by means of the key in the well-known man ner, the latch -actuator is correspondingly moved. Obviously when the key or like part 24: is in position to prevent movement of the latch -actuator the tumbler 19 cannot be moved. It therefore follows that the part 24 secures both the latch and the lock-bolt against movement when introduced into the lockcasing.

A pin 26 projects from the lock-case and forms a stop to limit the upward movement of the tumbler and prevent opening of the look by means of a key having the slot in its Web or bit too shallow.

Having thus described the invention, what is claimed as new is- 1. In a lock, the combination of a latch-actuator comprising a horizontal weight member, an upright at one end of said weight member having opposite side portions reduced, a vertical arm at the opposite end of the weight member formed With a lateral shoulder, a horizontal arm extended from the upper portion of said upright, a latch comprising spaced portions embracing a reduced part of the aforesaid upright and pivotally connected thereto and adapted to be reversed, means for pivotally supporting the latch-actuator approximately at the angle formed between the upright and horizontal arm, and a knob-operated tumbler having opposite arms arranged to cooperate with corresponding arms of the latch-actuator, and one of said arms having a lateral stud to engage with the aforesaid vertical arm, substantially as described.

2. In a lock, the combination of a pivoted latch-bolt having an extension, a lock-bolt provided with a stop, a tumbler having an extension cooperating with the stop of the lockbolt and with the extension of the latch-bolt for operating the latter at each actuation of said tumbler and lock bolt, and a key for securing the latch-bolt by direct contact therewith and at the same time preventing movement of the lock-bolt and its tumbler, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANK H. FAY. [L. s.]

Witnesses:

L. G. TAYLOR, O. L. POSTLETHWAITE.

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