Патент USA US2127583код для вставки
Patented Aug. 23, 1938 ‘2,121,583 ‘UNITED “STATES 2,127,583 " v v _ . LooK ' '3, ‘Robert T; vBurgess,’‘Holden, V_ ., 5 v '- .Application February 17, l938-,'Seria1'1§‘o;’l9.1;|(l5v1 - I. I 'y Q ' IClaim. My invention relatesI to‘ improvements in looks, and the main object is to provide a simple and positive lock particularly suitable for outdoor use on doors, gates and other places where a con 5 ventional hasp and staple would be used. Another object is to provide a lock of this kind wherein the lock housing takes the form of the hasp, being pivotally mounted at one end to the door or frame and, having a slot at its other end 10 to engage the staple, and the locking being car ried out by a pivoted lock bar adapted to swing through the staple crosswise to the slot and so secure the “hasp” to the staple. A further object is to provide a lock of this 15 kind wherein a double locking feature is provided by means of a slidable latch- bar adapted to en gage the aforesaid lock bar in its staple engaging position and to prevent the lock bar from swing ing out of ‘the staple until both bars are released by a key inserted in the lock itself. The foregoing and other more speci?c objects and advantages of my invention will be made evi dentin the course of the following detailed speci ?cation, reference being had to the accompanying drawing wherein Figure 1 is an elevation of my improved look as mounted on a door and frame, only a portion of the door and frame being shown, and the cover plate of the lock being removed to disclose the internal construction. Figure 2 is a similar view of the lock alone, the lock bar and associated parts being shown in unlocked positions. Figure 3 is a cross section along the line 3—3 in Figure 1. v Figure 4 is a cross section along the line 4-4 in Figure 2. In carrying out my invention, I provide the member 5 made in the shape of a hasp in elon gated narrow form having an eye 6 at one end by which it may be fastened to a ring or staple A in the door B and having a longitudinally extended slot 1 in the other end adapted to receive'the staple C fastened to the door frame D. Between -. these ends of the hasp member 5 a rectangular lock housing 8 is formed and comprises the frontal end 9, sides In and H and rear end l2 adapted to be covered by a removable ?at cover plate l3 held in place by screws or rivets l4. 50 > The frontal end 9 of the housing 8 is parted medially and provided with arcuate wings l5 forming a socket in which the rounded hub N5 of the lock bar I1 is pivotally mounted and wherein it is secured by a pivot pin I8 extended 55 through the housing and cover l3. This lock bar (01. l1 7091172) has alateral ‘ offset l9 '_and v; an r arcuatelygturned _ K lock hook 20 which is adapted to swing through the staple C when the lock bar is pivoted 0n the pin l8 across the face of the slotted end of the hasp member as shown in Figure 1. The lock bar and its hook are concealed in the locked position by means of the ‘sinuous channel-shaped en closures 2| formed on the hasp member and opening at one side to receive the bar and hook as shown. 10 At its inner end the lock bar I‘! has the short extended lock arm 22 and between this arm and the lower side ll of the housing 8 an expansion coil spring 23 is braced and arranged to normally swing the latch bar on the pin [8 and cause the hook 20 to swing out of engagement with the staple C. This movement is limited by engage ment of the arm 22 with one of the wings l5 as shown in Figure 2. A lock block 24 is slidably mounted in the upper portion of the housing 8 and is normally urged forwardly therein toward the end 9 by an expansion coil spring 25 braced between the op posite housing end l2 and an extension 26 of the block. The frontal corner portion 21 of the block 24 is thus adapted to overlie the arm 22 and hold the lock bar IT in its locked position (Figure 1) but by inserting a key 28 through the key hole 29 in the cover I3 and engaging it with the recess 30 20 the block may be urged rearwardly so as to clear ' C. the arm 22 and allow the bar ll to clear the staple C (Figure 2). Then to lock the bar with the staple again the bar is swung by hand into this position whereupon the spring 25 moves the block 24 forwardly again holding the bar in locked position. The block 24 may be slotted in its rear portion at 3| to receive an index plate 32 secured to the rear upper corner of the housing 8 and the key 28 provided with a notch 33 to clear this plate so that in unlocked position the 40 key cannot be removed from the lock. To further lock the bar I‘! in its staple engaging position, I provide a latch bar 34 of flat elongated form and which has its straight shank portion 35 slidably mounted lengthwise along the hasp mem 45 ber 5 in a groove 36formed therein. At its fron tal end the latch bar_34 is forked to provide spaced parallel ?ngers 31 for the slidable recep tion of which branches 36a of the groove 36 are provided. The rear end of the bar 34 is attached 50 by a pin or rivet 38 to the lock block 24 and the aforesaid sliding movement of this block of course causes a corresponding motion of the latch bar. The pin l8 supporting the lock bar l-‘l passes through a slot 39 in the latch bar which slot pro 55 2 2,127,583 vides for the necessary motion of the latch bar ferred embodiment of my invention, it is under as will be understood. stood that I may vary from the same in minor structural details, so as best to provide a practical In the forward or locked position of the block 24, the latch bar ?ngers 31 project across the path of the lock bar hook 20 and this hook has spaced notches 40 in its inner or under side which receive these ?ngers. As a result the hook is positively locked against swinging out of locking engage ment with the staples since to do so would require 10 shearing the ?ngers oif to ‘clear. However, as the lock block 24 is moved back by the key in unlock ing the lock, the latch bar is moved in such man ner that the ?ngers 31 withdraw from the notches 40 and free the latch hook 20 as will be under 15 stood. It will thus be understood that I have provided a lock having a double locking feature and which may be adapted to a wide variety of uses. The lock of course may be made in any size desired. While I have herein set forth a certain pre 20 device for the purposes intended, not departing from the spirit of the invention and within the scope of the appended claim. I claim: In a look, a hasp member having a staple re ceiving slot, a lock bar pivoted at one end on the hasp member, a hook extended from the free end of the lock bar and adapted in locked position to swing across the said staple receiving slot, an arm extended from the lock bar, a key actuated lock block adapted normally to engage the said arm and retain the lock bar in locked position, a latch bar slidably mounted on the hasp member and connected to the lock block, and the other end of the latch bar being adapted to engage and se cure the hook in the locked position of the bar. ' ROBERT T. BURGESS.