USRE1725E - Improvement in locks - Google Patents
Improvement in locks Download PDFInfo
- Publication number
- USRE1725E USRE1725E US RE1725 E USRE1725 E US RE1725E
- Authority
- US
- United States
- Prior art keywords
- wheels
- permutation
- combination
- bolt
- washers
- Prior art date
Links
- 238000010276 construction Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 4
- 230000001747 exhibiting Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
Images
Definitions
- Figure 1 is a perspective view of my improved lock, Fig. 2, an elevation of the same with the back plate removed for the purpose of exhibiting Athe operating parts; Fig. 3, a vertical transverse section in the plane of line a: ac, Fig. 2; Figs. 4, 5, 6, and 7, views showing the construction and arrangement of the permutation-wheels and the stationary washers connected therewith.
- rIhis invention consists, first, in forming the permutation-wheels, respectively, of two parts-an outer rim or ring and au adjustable centerso arranged that the combination may be changed by merely turning the center to a diierentp osition; second, in combination with suitable permutation-wheels arranged on a common axis, the use ot' stationary or nonrevolving washers in such a manner as to allow each wheel to turn independently ofthe others; and, third, in combination with permutationwheels and washers, the employment of an outer box or cylinder that retains them in place.
- A is a suitable case of ordinary construction; B, the bolt, and C the tumbler.
- the bolt is provided with a projection, a, that tits in a slot, b, in the tumbler, having notches or indentations c c at each end, which fall over the projection a at the extreme of each throw, to hold said bolt in place.
- the bolt is also provided with slots s s, (shown in dotted lines in Fig. 2,) adapted to receive a tongue or dog, D, forming an extension of the tumbler.
- tumbler moves vertically in the case A, being 'operated by a bit, E, of a stationary turning
- the I key, F which bit rests under the tumbler and also within a socket, d, of the bolt, which is thrown by it.
- the tumbler is pressed down by a suitable spring, G, resting on it, Fig. 2, and it can rise to release the bolt only when the tongue or dog D comes in coincidence with all the notches ff of the permutation-wheels El H, which can only be when the said wheels are set with the notches on a line, when the tongue will then rise in them.
- a box, l, Figs. 2 and 3 preferably in the form of a cylinder, and in this box are situated the permutation-wheels H H, consisting ot ⁇ two or more, as may be desired.
- the box allows the wheels a free turning motion, but retains them perfectly in place.
- the permutation-wheels are made in two partsan outer rim or ring, g, of proper size or form, and a center, h, that iits the opening 'i in the rim or'ring. I prefer to make these parts as shown in Figs. 6 and 7-that is, with the opening fof the rim g and the corresponding periphery of the center h corrugated, notched, or cogged, and iitt-ing closely each' into the other. lf desired,they may be made plain, as shown in Figs. 4 and 5, and held together by their friction; or they may be secured in various other ways that will be readily suggested.
- My device is very simple, cheap, and cannot get disarranged, while by merely making a partial turn of the adjustable center the combination is changed at once. i
- rim or ring- is represented as provided with asuitable scale, and the center with a hand or index, l.
- the eenter, and with it the index By setting the eenter, and with it the index, to any number the combination will be correspondingly changed, so that by turning the wheels the proper number of times the notches ff therein will be brought into line, so that the tongue D of the tumbler may be raised to release the bolt.
- any arrangement that will accomplish the same result may be employed.
- a turning disk, K having an index that points to a scale outside it on the face of the lock.
- a key fits into the key-hole m of this disk, and by turning the index to a certain number, and also turning the centers in the same manner to the same position, the combination will be changed.
- This arrangement is inferior to that before Between the permutation-Wheels are respectively situated Washers n n, Figs. 3 and 5, of any suitable form, which, while the permutation-wheels themselves have a free turning action, are stationary or non-revolving. They may be retained in place in the box I by any convenient means, that represented in the drawings being channels or indentations o 0, Fig. 2, invwhich their edges rest.
- the permutation-wheels may be turned to lock or unlock the bolt by any suitable means.
- Figs. 1, 2, and 3 the keyhole m is represented as passing through all the wheels, as well as the back of the case.
- the key is rst inserted'through to the back wheel, which is brought into position. It is then withdrawn suiciently to disengage it with that wheel,
- the combination of the wheels can be readily changed without removing the wheels from the case, as is necessary in most devices, for it is required only to loosen the screw L, which correspondingly loosens the centers h from the rings g, thereby allowing the said centers tobe turned by the key independently from the rim, and when the change is made a simple turn of the screw L fixes the centers combination is complete.
- This result is attained by the projection of the centers from the faces of the rim so that the screw can be made to bear on them.
- the wheels may be taken out of the ease for adjustment; but even in this case the screw performs an important function in tightening them at all times.
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