Lock

Sept 9, 1941.

N. J. VILE

LOCK

2,255,402

Filed Dec. 30, 1938 2 Sheets-Sheet 1

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Sept. 9, 1941. n. j. vile 2,255,402

LOCK Filed Dec. 30, 1938 2 Sheets-Sheet 2

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Patented Sept. 9, 1941

2,255,402

UNITED STATES PATENT OFFICE

2/55,402 LOCK

Norman J. Vile, New Britain, Conn., assignor to The American Hardware Corporation, New Britain, Conn., a corporation of Connecticut

Application December 30, 1938, Serial No. 248,383

Claims.

My invention relates more especially to locks of the cylinder type, and an object of my invention, among others, is the production of a lock of this type having means for attachment of a latch bolt in different angular positions for righthand or lefthand use, together with means for limiting the rotary movement of the barrel or plug to properly locate the latch bolt in different positions.

One form of a lock embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained is illustrated in the accompanying drawings in which—

Figure 1 is a side view of my improved lock shown as attached to a door.

Figure 2 is an end view of the same.

Figure 3 is a similar view with the latch bolt and its retainers removed.

Figure 4 is an isometric perspective view of the parts separated from the lock but in their relative positions for placing thereon.

Figure 5 is an isometric perspective view of a modified form of stop.

Figure 6 is a view similar to Fig. 3 but embodying the stop shown in Fig. 5.

Figure 7 is a face view of the lock illustrating different positions .of the key slot.

Figures 8 to 13 are views similar to Figs. 1 to 6 but illustrating slightly modified forms of the structure.

In the accompanying drawings the numeral 7 denotes a portion of a door and 8 a door stop comprising a portion of a door jamb, only such part of the door and stop being illustrated as is necessary for a clear understanding of my invention. The numeral 9 denotes the cylinder of the lock provided with the usual escutcheon i 0 and which is screw threaded to receive a nut ί I for securing it to the door, as shown in Fig. 1 of the drawings. The cylinder is bored to receive a plug or barrel 82, the latter having a groove for the reception of a key and which may be of the pin tumbler type or otherwise as may be desired. All of the parts thus far described are of old and well-known construction and a further and detailed description thereof is therefore omitted herein.

The inner end of the plug or barrel has a screw threaded stub 13 projecting therefrom and a support >4 for a latch bolt IS. This support is of angular shape, preferably square, and the latch bolt has an opening 17 to fit said support.

My invention contemplates the use of a stop I (CI. 70—139) device which is preferably in the form of a washer or washers having stops in the form of shoulders to limit the rotating movement of the plug or barrel or the latch bolt secured thereto, these ₅ stop devices being so constructed that their angular positions relatively to the plug or barrel may be changed to limit the movement of the latch in different zones and of different lengths or degrees of the arc of a circle.

In that form of the device illustrated in Figs. 1 to 5 the stop washer 16 has an opening 18 formed to fit the support 14. A stop lug 19 projects from the end of the cylinder 9 into the path of movement of stop shoulders 20 on 15 the stop washer 16, as shown in Fig. 4 of the drawings. In the structure shown in Figs. 1 to 4 the stop shoulders 26 are located substantially ninety degrees apart in one direction around the plug or barrel and'as shown in Fig. 4 of the 20 drawings.

In assembling the device the stop washer 16 is placed upon the support 14 and the latch bolt 15 is next placed upon the support. A washer 21 may then be placed upon the stub 13 and 25 ;the whole secured in place as by means of a nut 22 screwed on to the stub 13, as illustrated in Figs. 1 and 4 of the drawings.

The latch bolt may be placed upon the support, in such manner as may be desired, to engage a 30 door stop as 8 on the right or on the left hand side of the door or a stop even located at the top or bottom of the opening 23 through the door. The stop washer 16 will engage the stop lug 19 to limit movement of the barrel or plug 12 through 35 an arc of ninety degrees to permit movement of the latch bolt i 5 from a locking to an unlocking position, or vice versa. The structure shown in Figs. 5 and 6 is similar to that just described with the exception that the stop shoulders 24 are Jo40 cated substantially one hundred and eighty degrees apart so that the latch bolt may be moved through an arc of one hundred and eighty degrees and be stopped in such movement at each end of said path.

It will be noted that the latch bolt and stop are so related and their engagement with the support or mount 14 is so arranged that the zone of rotating or oscillating movement of the latch bolt may be changed as desired and the 50 stop washer 16 will limit movement in that zone in a path of the same length in all of the different positions of the latch.

It is often desired to change the position of the key slot relatively to the case or cylinder 9 and my improved stop enables this to be readily

2,255,409 done without change in the construction of any of the parts. To accomplish this the position of the support or mount 14 is simply changed, or rather, the position of the plug or barrel is changed relatively to the stop washer, the latter being retained in its position relatively to the stop lug 19. In this manner the stop washer being removed the plug or barrel 11 may be rotated to any desired position, and said washer then being replaced in its former or original position, the plug may be rotated in a path of its former length but in a different zone, as will be readily understood.

In that form of the lock shown in Figs. 8 to 11 a stop washer 25 is employed that fits upon a round portion of the plug or barrel projecting a slight distance outside of the cylinder 9, as shown in Fig. 11 of the drawings. Pins 25 project from the end of the cylinder 9 in position to enter holes 27 in the washer 25. Stop lugs 28 are formed on the washer 25 and extend therefrom in position to engage a stop 29 projecting from one end of the latch bolt (5. The pins 26 and holes 27 as well as the stop lugs 28 may be variously arranged, the pins being shown as located diametrically opposite each other. The stop lugs are located far enough apart to permit movement of the plug or barrel through an arc of ninety degrees. The holes in this case are located slightly more than ninety degrees apart, taking into consideration the width of the stop 29. If it be desired to provide for movement of the latch bolt , through an arc of one hundred and eighty degrees, then a stop washer 25 would be employed, having stop lugs somewhat more than one hundred and eighty degrees apart, the width of the stop 29 being considered and if provided with four holes, substantially ninety degrees apart would permit of four differently located arcs of motion, each of one hundred and eighty degrees.

In that form of the device illustrated in Figs. 12 and 13 the plug or barrel is projected beyond the cylinder as in the structure of Figs. 8 to 11. Two stop washers 38 are employed each having a stop lug 31 and each having holes 32. In this structure eight holes are shown to engage the pins 26, but it will be understood that the holes may be provided in such numbers as desired and to suit any particular arrangement required.

The arrangement of the holes in connection with the pins is such that the lugs 31 may be located on the cylinder such distances apart as may be desired and to provide a rotation of the plug or barrel to any extent to accomplish any particular purpose as to defining the zone of movement of the latch bolt and the length of the arc through which the bolt will be moved.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention, together with the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is only illustrative and that the invention may be carried out by other means and applied to uses other than those above set out.