US584544A

US584544A - Seal-lock

Info

Publication number: US584544A
Authority: US
Publication date: 1897-06-15
Anticipated expiration: 1914-06-15

Description

(No Model.)

W. K. EDGAR.

SEAL LOCK.

rTnn STATES VILLIAM K. EDGAR, OF COLORADO SPRINGS, COLORADO.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 584,544, dated June 15, 1897.

Application led February 24, 1897. Serial No. 624,794. (No model.) i

To all whom, t may concern;-

Be it known that LWILLIAM K. EDGAR, a citizen of the United States, residing at Colov rado Springs, in the county of El Paso and State of Colorado, have invented a new and useful Seal-Lock, of which the following is a specification.

The invention relates to seal-locks adapted particularly for use in securing freight and other car doors; and it has for its object to provide a lock capable of use in connection with either a side or an end door, the same having common means for locking the staplebolt and seal, and said means being adapted when the seal has been 'removed to be disengaged with facilityfrom the bolt and without the use of tools, and, furthermore, to simplify, strengthen, and otherwise improve the construction set forth in Patents Nos. 535,026 and 563,916, granted to myself and W. L. Sebring on March 5, 1895, and July 14, 1896, respectively.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a lock constructed in accordance with this invention applied in an operative position to a car-door, a portion only of the latter being shown, the locking-bolt being illustrated as in engagement with a staple. Fig. 2 is a vertical central section of the same, showing the parts in their locked position. Fig. 3 is'a similar view showing the parts in their unlocked position. Fig. 4 is atransverse sectional view taken in the plane of the locking-pin. Fig. 5 is a detail view of the locking-bolt detached. Fig. 6 is a similar view of the locking-pin detached. Fig. 7 is a similar view of the trip or releasing pin detached.

Similar numerals of reference indicate corresponding parts in all the iigures of the drawings.

1 designates a hasp adapted to be attached in the ordinary or any preferred manner to a door, and 2 a staple adapted to be secured to the jamb or casing of the door for engagement by the eye 3 of the hasp, said part-s being of the ordinary construction.

4 represents the casing of the lock, which is adapted to be secured te the framework of a car by means of bolts 5 or their equivalents, and formed longitudinally in this casing is a bolt guide or Way consisting of verticallyalined notches G, formed in the upper and lower walls of the casing for the reception of the locking-bolt 7 ,which is adapted when eX- tended to engage the staple to hold the eye of the hasp in place thereon.

The casing is preferably made hollow to secure lightness, and the main or body portion thereof, in which the bolt is mounted, is fitted with a removable cap S,in which is formed a seal-seat, said cap being provided with lugs 9, which it into the interior of the main or hollow portion of the casing and being secured to said main or hollow portion byscrews lO or their equivalents.

The seal-seat consists of parallel side shoulders 11, between which is a cavity 12 to form a space in rear of the seal 13 to facilitate breaking the latter, and these shoulders are connected at their lower ends by a transverse ledge 14 in the same plane therewith. The seat is partly closed at its outer side to prevent the introduction or removal of the seal, except by sliding the same longitudinally and upwardly thereinto by lneans of overhanging upper and

lateral iianges

15 and 16, the lateral flanges 16 terminating short of the lower ends of the shoulders 11 to facilitate the engagement of the upper end of a seal with the seat.

The Hoor of the cavity in the seat is provided with a guide-openin g 17 to register with a corresponding opening 18 in the rear wall of the casing for thefreception of a lockingpin 18, which is adapted for operation in a plane transverse to that of the locking-bolt 7, said locking-pin being provided near its front end with a reduced or neck portion 19, which when arranged in the plane of the locking-bolt is adaptedto release the latter for longitudinal movement. The bolt is slotted longitudinally, as shown at 20, and the main portion of this slot, while of a width sufficient to embrace the reduced or neck portion of the locking-pin, is insufficient in width to receive the locking-pin at any other points than at said neck; but at the upper end of the slot in the bolt is an enlargement 2l of sufficient width to receive the body portion of the lock- ICO ing-pin. This enlargement, which necessarily forms an offset from the line of the slot, provides a 'shoulder 22, and when the body portion of the locking-pin is in engagement with this shoulder, as shown in Fig. 2, the locking-bolt is held from longitudinal movement.

In connection with the abovedescribed mechanism I preferably employ a seal of frangible construction, the same being of clay or equivalent material, inscribed by number or otherwise to indicate destination or convey any other inform-ation which may be necessary, and this seal is provided at an intermediate point with an opening 23, through which is adapted to project the extremity of the locking-pin, whereby the seal is held from longitudinal movement in its seat. In other words, the locking-pin when extended, as shown in Fig. 2, serves not only to lock the bolt, but to secure the seal in its seat, the sealseat being parallel with the bolt-guide.

Attached to and projecting laterally from the locking-pin is an operatingpin or lingerhold 24, which projects through a horizontal forwardly and rearwardly extending slot 25 in the side wall of the casing and carries a disk 26, whereby the slot is covered to prevent tampering with the interior of the lock and also to prevent the entrance of dirt. The

an ear 27, which fits in and partly closes the slot, as will be seen by reference to Fig. 4.

Formed on the rear end of the locking-pin isa stepped or shouldered ratchet 28, of which the shoulders are adapted to be engaged by the free end of a spring-actuated pawl 29,

of the casing, the construction of said ratchet being such that the locking-pin may be advanced or drawn forwardly to engage the locking-pin or seal without manipulating the pawl, but cannot be moved in the opposite direction, except after' previously tripping said pawl or disengaging the same from the ratchet.

In order to provide for tripping the pawl from the front of the lock, I employ a trip or releasing pin consisting of a stem 3l, mounted in al guide consisting of registering openings 32 and 33, respectively, in the front and rear locking-pin and a lateral arm 34 at the rear end.l of said stem, said arm being provided with a beveled extremity to bear against the side surface of the pawl and move the latter in opposition to its actuating-spring when the stem is drawn forwardly. The front end of the stem is normally arranged in the seal-seat or in the cavity which is formed between the side shoulders of said seat, andl attached to this projecting extremity of the stem is a finger-ring 35 of such a size that when the trip or releasing pin is pushed rearwardly to dispose its extremityin rear of the plane of the side shoulders of the seat said ring may lie in the cavity of the seat around the lockpressure upon the inger-hold at the side of the casing to bring the reduced portion or neck of the locking-pin into theplane of the lbolt and hence in-to alinement with the reduced portion of the slot in the bolt.

From the above description it will be seen that the only spring used in the construction of the lock. is that which isemployed in con` nection with the pawl. and which is subject to no strain, except during the repression of the pawl to release the locking-pin. ther-more, it will be seen that by forming the seal with a central opening through which the extremity of the locking-pin is exposed the frangibility of the seal is increased, while i by being opaque and the opening. therein bcing smaller in diameter than the ring which l is attached to the front end of the trip or rej leasing pin the releasing devices of the lock e are invisible. v

cap of the casing is preferably provided with 1 L and the minor details of con-structionmayfloft resorted to without departing from the spirit I.or sacrificing. any of the advantages of. this invention'.

Various changes in the form, proportion,

Having described my invention, what I claim ismounted in a rearward hollow extension 30 A casing provid-edv with a bolt-guide and a sealseat', of a slotted bolt, the slot thereof having a 1. In a seal-lock, the combination` with a terminal enlargement, a loclring-pinvmounted for movement in a guide arranged in a` plane l transverse to the bolt and extending through l the enlargement of the sl0t` therein, said lock@ 1 ing-pin having a reduced portionV or neck adapted to be received by the reducedportion of the slot in thel bolt to allowV longitudinal movement of the latter, and means for secur-k ing the locking-pin with its body portion. in engagement with the enlargement ofthe slot 1 in the bolt, substantially as specified.

walls of the casing below the plane of the i 2. In a seal-lock., the' combination with a casing having a bolt-guide and a parallel seall seat, lof a slotted bolt fitted inv said guide', the slot therein having a terminal enlargement,- a locking-pin mounted in a guide disposed Stransversely with relation to the bolt-guide and extending through the enlargement of the slot in the bolt, said pin having a reduced portion or neck adapted to be received by the reduced portion of the slot in the bolt, a seal fitted inv lsaid seat and having, an opening adapted to receive the front end of the locking-pin, and means for securing the locking- `pin in its normal position, substantially as specified. Y v Y e e e 3. In a seal-locl1, the combination with a Fur- IOC

IIO

locking-bolt and seal having an opening, of a locking -pin mounted for movement transversely to the bolt and adapted when extended to engage said bolt and seal, the locking-pin being provided with a ratchet, a pawl yieldingly held in operative relation with the ratchet of the locking-pin to secure the latter in its advanced position, and a trip or releasing pin, having a beveled face arranged in operative relation with the pawl, and a stem disposed contiguous to and adapted to be concealed by the seal, substantially as specified.

4. In a seal-lock, the combination with a casin g having a bolt-guide and a parallel sealseat, the latter being cut away to form a cavity, a seal fitted in said seat to cover the cavity, vand a bolt mounted in the bolt-guide, of a locking-pin mounted in a guide disposed transversely with relation to the bolt-guide and adapted when extended or advanced to engage the bolt and seal, said pin extending through the cavity of the seal-seat, means for locking the pin in its advanced position, and a trip or releasing pin, arranged in operative relation with the locking devices of the pin, and having a stem projecting terminally'into said cavity of the seat, and provided with a ring, adapted to be arranged in the cavity around the locking-pin when the seal is secured by the latter, substantially as specified.

5. In a seal-lock, the combination with a casing having a bolt-guide and seal-seat, a bolt mounted in said guide, and a seal fitted in the seat, of a lockingpin mounted for :movement transverselyT With relation to the bolt and adapted when in its extended or advanced position to engage both bolt and seal, an operating-pin projecting laterally from the lock-