US2521111A - Door lock - Google Patents

Description

W. YLINEN DOOR LOCK Sept. 5, 1950 Filed July 6, 1946 I N VEN TOR.

MY/iam Mien QWA W flTfOR/VEY Patented Sept. 5, 1950 UNITED STATES PATENT OFFICE 2,521,111 DOOR LOCK William Ylinen, Otis Orchards, Wash. Application July .6, 1946, SerialNOufiSL'GGB This invention relates to an improved door catch and it is one object of the invention to provide a device of this character so constructed that by grasping a handle at the inner or outer side of a door and shifting the bar longitudinally through the door a bolt slidably mounted at right angles to the bar will be movedto a retracted positlon and release the door for opening movement.

Another object of the invention is to prov-idea catch and lock wherein the bolt is slidab ly mounted in a tube embedded in the door and formed in opposite side portions with slots with which register a slotformed through the bolt, the slotof'the bolt being so formed that it is provided with a cam surface engaged by an arm projecting transversely from a bar with which handles are connected for shifting the bar longitudinally and retracting the bolt.

Another object of the invention is to provide a catch and lock. wherein the bar for retracting the bolt is formed with a slot or recess for receiving a side arm of a shaft which is turned by means of a key in order to move the side arm into the recess and secure the bar against movement in a direction to retract the bolt.

Another object of the invention is to provide a catch and lock which is simple in construction and may be easily mounted in a door.

The invention is illustrated in the accompanying drawings wherein:

Fig. l is a view in elevation showing a portion of a door equipped with the improved catch and lock.

Fig. 2 is a sectional view taken vertically along line 2-2 of Figure 1.

Fig. 3 is a horizontal sectional view taken along line 3-3 of Figure 1.

Fig. 4 is a fragmentary sectional view taken through a portion of a handle and a guide sleeve for the handle.

Fig. 5 is a transverse sectional view taken along line 5-5 of Figure 2.

This lock. is used for holding a door closed. The door i may be of any desired size and thickness and adjacent its free side edge is formed with a transversely extending opening 2 to receive a cylinder 3 and a bore -i to receive a tube 5. The bore ii leads from the free side edge face of the door and the tube is formed about its outer end with a flange which is countersunk in the door and secured in a conventional manner by screws or the like (not shown). Slots 1 are formed in opposite side portions of the tube and are of such length that they extend through the cylinl-Claim. 01471044 .der 3 for the full diameter thereof, as shownin Figure 3. Caps .8 and .9 close ends of the cylinder and their marginal portions overlap escutcheon plates l0 which bear against side faces of the ,is slidably mounted in the-tube dand urged outwardly by a spring 14 mounted in the tubebetween inner end of jthetube and the inner endo f theb ol't. The slot is formed entirely through the .b'oltjbut itsinner end portion is cut to form a diagonally eiitending cam surface 15 for eng gem'ent by the confronting cam surface of a lug 'or arm 16, and upon referring to Figure? it will be seen that when the bar is shifted longitudinally in one direction the cam surfaces of the arm is and the bolt will cause the bolt to be shifted inwardly to a retracted position. When the bar is released expansion of the spring will shift the bolt outwardly to the extended position in which it will engage a keeper on a door frame and hold the door closed. The outer end of the bolt has the usual curved surface I! for momentarily shifting the bolt inwardly when a door is closed and this surface engages the keeper. In order to shift the bar H longitudinally there have been provided inner and outer handles 18 and 19 which have their lower ends pivoted to cars it! projecting from the escutcheon plates 10 for swinging movement towards and away from the door. The upper end portion of each handle extends towards the door and at its end is formed with a pocket 2i to receive the adjoining end of the bar I l which is secured in the pocket by a pin 22 passed transversely through the handle. Sleeves 23 are screwed upon the reduced and threaded ends 24 of the handles and these sleeves pass through openings 25 formed centrally of the caps 8 and 9 to guide movement of the handles and the bar ll. Since the sleeves are screwed upon the end portions of the handles through which the pins 22 pass they serve to hold pins in place and prevent them from slipping longitudinally out of securing engagement with the ends of the bar. The openings 25 are of such s1ze that binding will not occur when the handles are grasped and actuated to shift the bar longitudinally. When the handle I8 is grasped pull is exerted to shift the bar I l longitudinally and move the bolt to its retracted position and when the handle it? is grasped push is exerted thereon to shift the bar and retract the bolt.

In order that the bar I I may be secured against longitudinal movement and the bolt held in an extended position there has been provided a rod. or shaft 26 which extends through the cylinder longitudinally thereof in crossing relation to the tube 5. The inner end portion of the shaft passes through the cap 8 and is formed with a lever 21 so that by grasping this lever, or finger hold, the shaft may be turned and its side arm 28 swung downwardly into a slot or recess 29 defined by an arm 30 spaced from the lug or arm 16. When the side arm 28 is engaged in the recess 29 the bar II can not be shifted longitudinally and the bolt may not be retracted to release the door for opening movement. The outer end portion of the shaft 26 is received in the cylinder of a lock 3| mounted through the outer cap 9 and when a key 32 is inserted into the lock and turned the shaft will be turned to rotate the shaft and effect retraction of the bolt. It will thus be seen that a person within a room or building may secure the bolt by grasping the lever 21 and turning the shaft 26 and the door may then not be opened by a person outside the room or building who does not have a key to fit the lock.

Having thus described the invention, what is claimed is:

In a door fastener having a cylinder adapted to be mounted through a door and provided with heads at its ends, a spring biased bolt slidable longitudinally to extended and retracted positions and passing through the cylinder transversely thereof, and a bar slidable longitudinally through the cylinder and provided with a laterally extending lug having a cam surface engaging a portion of the bolt for shifting the bolt longitudinally to retracted position when the bar is shifted longitudinally in one direction; a finger extending laterally from said bar in transversely spaced parallel relation to the lug and together with the lug forming a slot, a shaft extending longitudinally through the cylinder, in upwardly spaced parallel relation to said bar and having one end portion rotatably mounted through one head of the cylinder and projecting outwardly therefrom and carrying a laterally extending lever for manually turning the shaft, an arm extending laterally from said shaft and having swinging movement imparted thereto out of position in the slot between the lug and the finger for securing the bar against longitudinal movement in a direction to retract the bolt, and a lock mounted through the other head of the cylinder, the shaft being connected with the mechanism of the lock whereby the shaft may be turned in a direction to swing its arm out of the slot of the bar and thereby release the bar when the lock is actuated by a key thrust into the outer end of the lock.

WILLIAM YLINEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 483,318 Armstrong Sept. 27, 1882 2,058,163 Malone Oct. 20, 1936 FOREIGN PATENTS Number Country Date 486,938 Great Britain Sept. 2, 1936

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