US448700A - Seal-lock - Google Patents

Description

(ModeL) W. WALKER.

SEAL LOOK.

Patented Mar. 24, 1891.

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IVILLIAM \VALKER, OF SCANDIA, KANSAS.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 448,700, dated March 24, 1891. Application filed March 28, 1890. Serial No. 345,741. (ModeL) To all whom it may concern:

Be it known that I, WILLIAM WALKER, a citizen of the United States, residing at Scandia, in the county of Republic and State of Kansas, have invented certain new and useful Improvements in Car-Door Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to locks, and particularly to that class which use a seal that is ruptured, broken, or otherwise destroyed when the lock is opened.

The invention aims to simplify the construction of this class of devices and provide efficient means for destroying the seal at the time the lock is opened, and which will of fectually preclude opening the look without destroying the seal.

A further object of the invention is to facilitate the insertion of the seal and guard against any possible removal of the same when the lock is fastened.

The improvement consists of the novel features which hereinafter will be more fully described and claimed, and which are shownin the annexed drawings, in which- Figure l is a perspective view of my invention. Fig. 2 is a vertical central sectional view of the lock. Fig. 3 is a view similar to Fig. 2, showing the bolt withdrawn and its operation by dotted lines.

The case A forinclosin g the operating parts of the lock is provided with an offset a on its front side to receive the movable stop B, and with an opening 0 at one or both sides to permit the removal of the fractured parts of the seal. The sealD, of suitable material, preferably of glass, porcelain, or other frangible material, is exposed through the sight opening d in the front side of the case just beneath the stop B. The stop orledge 6 supports the seal when the latter is in position, and the plate or bar F supports it from the rear against the front side of the case. This plate or bar F has connection with the rod or bolt G, and is adapted to have a vertical movement through the opening H in the upper end of the case. This opening H is closed by a cap it, which is secured to the upper end of the plate F. This cap also serves as a means for operating the plate F. V

The plate F is provided at its upper end with two plates I and J, which are about the same length. The plate Iis on the front side of plate F and terminates in shoulder t',which is adapted to press on the upper end of the seal and push it to place as the plate F and rod or bolt G are moving down. The plate J is on the rear side of the plateFand its lower end is beveled, as shown at j. The stop K at the top end of the case is adapted to ei'igage with and limit the upward movement of the rod or bolt G.

The movablestop B is journaled on the pin b, which passes through the sides of the case in such a manner that its inner end will tilt down, but be limited from vertical movement by reason of its outer end engaging with the lower side of the offset n. Thus it will be seen that after the seal passes beyond the stop B the latter will hold it down. In addition to stop B, the plate I also serves to hold the seal against vertical displacement when the lock is fastened.

The rod or bolt G is provided with a cam portion 9 to effect a longitudinal movement of the rod L, which is arranged at right angles to the rod or bolt G", and which is adapted to work through an opening in the batten M, to which the lock is secured. sharpened to form a breaking-point, which is adapted to destroy the seal when the lock-bolt is withdrawn.

The seal is designed to receive the number or name of the station, and is inserted in the lock in the following manner: The plate F is drawn up until rod G strikes stop K, when it is pressed in atits upper end. The seal is inserted in the opening thus formed in front of the plate and falls to the movable stop 13. The plate is then drawn forward and depressed, the plate I, engaging with the seal, forces it past stop B. The plate F and rod G being connected, obviously the latter is moved down and effects a locking of the door to which the lock may be applied. W hen the plate F is drawn up, the cam portion 9 on red Gwill advance rod L sufliciently far to destroy the seal. The bolt G is adapted to be projected through the staple M, which is below the case This rod L is C, and hold the hasp (not shown) on the said staple. Obviously, if the lock be arranged close to the bottom edge of the door the bolt G can be made to enter the lower rail on which the door slides, and if placed close to the edge of the door the bolt L may extend through the door and engage with that portion of the car overlapping, as will be readily understood.

Ilaving thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a seal-lock, the combination, with the case having a sight-opening and having an opening in its top, the plate having the lookingbolt attached thereto adapted to slide through the said opening in the top of the case, and the seal-breaking devices, of a seal adapted to be inserted in the opening in the top of the ease, and a movable stop arranged over the sight-opening and adapted to permit the passage of the seal between it and the said plate and automatically project within the path of the seal after the same has passed by and hold it from withdrawal, substantially as described.

2. The combination, with the case having sight-opening (Z, and having a support, as e, below the opening and the movable stop above the sight-opening, of the seal held from vertical displacement by the said stop, the sliding plate F, adapted to support the seal from the rear and having the looking-bolt attached thereto, and the seal-breaking devices operated by the said rod, substantially as described.

3. The combination, with the case having a sight-opening and having a support 6 below the opening, the stop, and the seal, of the sliding plate having shoulder i to engage with the seal and push it by the stop, and having the locking-bolt attached thereto, and the seal-breaking devices, substantially as set forth.

4. The combination, with the lock-case having a sight-opening and the seal exposed through said opening, of the sliding rod G, having a cam portion, and the rod L, arranged at right angles to rod G and to the front of the case and adapted to be engaged by the cam portion of rod G, and having a breakingpoint to destroy the seal, substantially as specified.

5. The combination, with the case having sight-opening (l, the stop 13, and the seal, of the sliding plate I the rod G, connected with the said plate and having a cam portion, and the rod L, having a breaking-point and arranged at right angles to rod G and adapted to be moved longitudinally by the cam port ion on rod G to destroy the seal, substantially as and for the purpose described.

6. The combination, with the case having sight-opening cl and opening H at its top, the stop K, the seal, and the seal-breaking mechanism, of the sliding plate F for operating the seal-breaking device and projecting the locking-bolt, the plate I on the front side of the plate F to hold the seal down, and the plate J on the rear side of plate F, and three plates filling opening 11 when the plate F is at its lowest position, an d the plate J adapted to rest upon stop K when the plate F is at its highest position, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

\VILLIAM WALKER.

Witnesses.

A. 0. SMITH, A. J. WHITE.

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