US109457A - Improvement in combination-locks - Google Patents

Description

tintin tatee anni, didn.

Letters Patent No. 109,457, dated November 22, 1870.

IMPROVEMENT IN COMBlNATION-LOCKS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, SEYMOUR K. SnnLYn, ot' Hndson, in the county of Lenawee and Stateof Michigan, have invented a new and useful Improvement in Combination-Lock; and I do hereby declare that the following isa full, clear, and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had tothe accompanying dra-wing forming part of this spccication.

rlhis invention relatesl to anew and useful improvement in locks, more especially designed to be used for.` fastening barn and stable-doors, or doors of ont-houses, and to be made of wood, but which may be made ot' metal, and used to good advantage on dwelling-houses and other similar doors; and

lt consists in a series ot movable blocks, constructed and arranged to operate in combination with a latch, a catch, and thc lock-bolt, arranged as hereinafter more fully described.

In the accompanying drawing- Figure l is a view ot the inside of the lock.

Figure 2 is a view of the outside of the door.

Figure 3 is a Cross-section of fig. l, on the line av.

Figure 4 is-a side view of one ofthe movable blocks, by means of `which the combinations are formed.

Figure 5 is la side view of one ot' the blocks which is used for raising the latch in` locking.

Similar letters ot' reference indicate corresponding parts.

A is the locking-bolt.

B and G are guide-brackets, which are fastened to the door, in which guides the bolt is moved back and forth. c; l

D isa cross-piece, by which the two brackets are connected.

E is a thin plate,..by which the ends of the brackets are connected, upon which the blocks slide. I p

F represents the blocks, ot' which there may be more or less in number.

The greater `the number of blocks, the greater will be the number of combinations.

In this example' of my invention I use ten blocks ot uniform size and form, with the exception of the one shown in iig. 5, for raising the latch whichlocks the bolt. p

The t'orm of the other blocks is seen in tig. 4.

G is the latch, which -is pivoted at one end to the cross-piece D, as seen at 71, so that thc other end will drop by itsown gravit-y.

l is a catch, which is pivoted at one end, in recess or mortise, in the under edge ofthe boit A. The opposite end drops down, as seen in the drawing, and prevents the back movementof thc bolt. Y l

lVhen the latch G is held up by the blocks, as seen in the drawing, the lockingis complete.

A slot or horizontal mortisc is made through the door, to receive the tail ends of theblocks, which are pnt in from the inside, andv kept in position by stopplate J. (See iig. 3.)

'Fachblcck isindicated by a number on the outside of the door, as seen in fig. 2.

From the peculiar form ofthe blocks, itwill be seen that, by turning them over and changing their positions, a large number of combinations may be made with the ten blocks, amounting to near one thousand.

The blocks or keys are pushed in or pulled out, so as to hold upv thc latch G by a certain" combination ot' numbers.

For unlocking, or to allow the latch toldrop and the bolt to be drawn back, it is only necessary to know what thev combination is to place the blocks in the proper position.

K is a knob on the outside of the door, by means of which the bolt is thrown back and forth when there is no' obstruction.

rlhis is a cheap and safe fastening device, and its advantages for the purposes intended must be apparent to all. g

Having thus described my invention,

I elaini as new and lesire to secure by Letters Patentlhe blocks F, latch Gr, and catch I, in combination with the bolt A, when the same are constructed and arranged to operate substantially as and for the pnrposes described. l

Theabove specification of my invention signed by me. this 3d day ot August, 1870.

SEYMOUR K. SEELYE.

Witnesses L. It. Pmnsox, I?. SHUMWAY.

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