US65261A - Joseph nock - Google Patents

Description

nitrh rates @anni @fitta 'JOSEPH Noon, oF WASHINGTON, DISTRICT or eOLIIMBIA.

i Letters Patent No. 65,261, dated fay 28, 1867.

IMPROVEMENT IN TRUNK-LOCKS.

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TO ALL WHOM `I'I MAY CON CERN:

Be it known that I, JOSEPH NOCK, of the city of Washington, in the District of Columbia, have invented certain new and useful improvements in Trunk and Chest-Locks; and'I do hereby declare the following to be a full and exact description of the same, reference being had to the drawings that accompany and form a part of these specifications, in which-- i Figure I is a plan view, transparent, showing a'series of tumblers and levers.

Figure II, sectional view of the above.

Figure III, plan view of lock, internal arrangements the same as Fig. I.

Figure IV, sectional view of the lock shown in Fig. III.

Figure V, view of the tumblers and key when in position to allow the top of the trunk to be raised.

It will be seen that the Alocks shown in Figs. I and III are'the lsame, only with this difference, that the rst has the plate A in front of the inner parts, and is thus calculated to go on leather trunks. Tha't shown in Fig.

III has the plate A back ofthe inner works, and is thus suited to be used on w0oden'trunks or chests, Ithe bodyv 'of the lock being set into the wo'od.

.Letter A represents the ordinary lock-plate, to which the other parts are attached; letter B, staple or hook letter C, key-pivot letters d d, levers; ,letters e e e e, series of tumblers; letters g g y g, springs attached to the tumblers; letters h L 7L L, catches on the tumblers to clasp the hook B; letters z'z'zz', openings for the rivets, by which the lock is attached to the trunk; letter j, fulcrum of the levers d d letter la, pin to prevent' the said levers from falling too low.

My invention relates to the use and combination of a series of tumblers, e c e e, with a series of levers, in a manner the most simple, yet such as `to secure a degree of safety and durability far beyond anything heretofore known in trunk-locks. V'lhere are various reasons why the tumblers should have double catches L 7L, that is, on both sides of the catch-bolt B. lOne is 'that the staple B, when entering among the tumblers, may have bearing on both sides of' the lower bevelled end, otherwise the staple is racked to one side every time the lid is closed, and the staple soon becomes loosened inthe plate that holds it, or the plate itself becomes loose, or the hinges of the lid are strained, or all these may and often do happen. Another reason for this structure is theY great safety secured, for the staple can only be withdrawn when some of the tumblers are turned on the common pivot 0 in onedirection, and others in the opposite direction. This could not wellA be done with the tumblers alone, hence the introduction of the levers d d. New, suppose the right key to be used; the wards that act on the levers rl d raise them, and they in turn act on the lower left-hand corner of the corresponding tnmblers,

and throw back the upper right-hand catches, and at the same time the other wards of the key act on the lower ends of the other tumblers, carrying those lower ends towards the right arid the upper left-hand catches to the left, when the key, levers, and tumblcrs assume the positions indicated in Fig. V. It is not enough merely to move the tuinblcrs in the right direction; each must be moved just so far and at the right time, and each lever raised just so much and at the right time, or the lock will not open.y Should any one ofthe tumbler-s be moved too little or too far, or part of them too far and others'too little, or some of them just right and others n dt enough or too much, or all together, in the right direction, but too far or not far enough, or should some'lic moved and others not at all, as by acting on the levers only, the lock will not open.

It will be readilyunderstood that I do not confine myself to any given number of levers or tumblers. I may use more of one and less of the other, or vice ecran, as I may wish to vary the combination. In these I have shown I use three tumblers and two levers, arranged as shown in Figs. II and IVr What I claim as my invention, and desire to secure by Letters Patent, is

4A series of springtu1nblcrs, E, and lcvcrs d, so arrangedand combined that the key shall act directly upon a portion of said tumbler-s to release them from the staple, and at the same time shall act on the levers d, causing them to act upon and release other of the tumblers, in the manner substantially as described.

y JOSEPH NOCK.

Witnesses: I

D. C. Conny, Cime. F. Winsen.

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