US1243936A - Valve-lock. - Google Patents

Description

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vALvE LlocK. APPLICATION FILED FEB- I. 1911.

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vAu/ E LcK. APPLICATION FILED FEB. l. 19H.'

' i Patented 00h23, 1917.

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WILLIAM HENCKLER, OF ST. LOUIS, MISSOURI. i

VALVE-LOCK.

Specification of Letters Patent.

Patented Oct. .23, 1917.

AppIication filed February 1, 1917. Serial No. 145,961.

To alll whom t may concern:

Be it lmown that I, WILLIAM-HENCKLER, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Valve-Locks; and I do declare the following i to be a full, clear, and exact description of the invention, such as will enable others.l

skilled in the art to which it appertains to make and use the same. l

This invention relates to new and useful improvements in valve locks for tanks, and

' moreparticularly to a valve lock' for operatbe very eiiicien't in operation.

ing a valve in a gasolene tank of an automobile to prevent unnecessary and dangerv ous escape of gasolene from the tank,and also to prevent the use' of the automobile when the valve is locked. 'l

Another object of theinvention isto provide a valve lock of this character which employs a type Aof lock which is only operable y a certain type of key, and said lock bcing provided'witha latch to automatically hold the valve when in open position, and to prevent the key from turning to close the valve until the latch is release Another obj ect of this invention is to provide a device of this character which is simple and 'durable in construction, inexpensive/to manufacture, and one which will With these and numerous other objects in view, my invention consists of the ,novelfeatures" of construction, combination and arrangement of parts. which will be herein.

der rotated to open position;

Fig. 5 is a from elevation of' the 160k;- Fig. 6 1s a .vertical section ytaken on the line 6 6 of Fig. Ll;

Fig. 7 is a transverse section through the lock on the line 7-7 of Fig. 3;

Figs. 8 and 9 are similar sections on the lines 8,-8 and 9.9 of Fig. 3; Fig. 10`is a transverse section takenon the line 10-,10 of Fig. 2;

-Figzl-l is a detail plan view of the cylinder removed from the casing; and Fig.'12 is an end view of the cap which is secured'to the top of thecasing. l

' In describing my invention I shall refer to the drawings in which similar reference Asa@ characters designate like parts throughout the several views. In the accompanying drawings, I` have shown the valve lock ap'- plied to lthe conventional" type of valve in a tank, but it will be understood that this type of valve lockis applicable to various uses andzneed not be limited `to the use illustrated in the accompanying drawings. The numeral 1 designates a valve casing having the usual type of s aced inlet and outlet openings on opposite sides'of the same, and positioned in this casing is a hollow rotatable valve 2 also provided with inlet and outlet ports adapted to.l aline with the open- -ings in' the casing. Secured to the upper.

end ofthe valve casing l'is a longitudinally extending pipe or cover 3 which protects `an operating rod 4: which is connected w-iththe lvalveQ. The pipe.-coveri ng 3 has a T joint 5 inserted intermediate its ends, and the shank portion of the same is connected with may be adjusted as is obvious.

Attached to the free end of the pipe cova brace 6wherebythe valve and covering ering 3 is a lock casing 7 which is mounted on a bracket 8 which is adapted to be secured to any desired type of support, 'on

the outside of the tank. This lock casing .'7' is open ended and is adapted 'to receive therein a rotatable cylinder 9 which has one enjd connected with the adjacent endof the operating rod 4 of the valve. y

The rotatable cylinder 9 disposed within the lock casing is formed with a substantially longitudinall extending slot 10 there` in, and'theend o the same which isconnected, with the' rod 4 is reduced as shown Aat 11, and'is positioned in a reduced portion 12 in the lock casing. The shoulders formed. Lby these reduced portions will consequently .abut whenthe cylinder is in position, and `'longitudinally positioned e within the lock casing in the shoulder, is aspring pressed tumbler or detent`12 which is adapted to ybe positioned normallyin an enlarged portion 13. atl the end of the slot in the cylinder.`

Furthermorethe rotatable cylinder is held in position byv means of a spring pressed tumbler 14'in the lock casing which is adapted to project transversely, and co-acts with eo l . an adj acent-portion positioned in an opening in the rotatable cylinder and which alines with the recess in which the tumblerl 14 is positioned, when said cylinder is in locked position. This cylinder is also provided witha pair of annular grooves 16, in which are positionedprojecting lugs 17 from the inner wall of the lock casing adapted for engagement with the stops 17 in said grooves, and are adapted to securely hold the cylinder in position and prevent movement of the same.

In the top of the lock casing 7 is a longitudinally extending slot 18 in which is pivotally mounted a latch 19, said latch having one end normally positioned downwardly through the opening and against the outer surface of the cylinder, the other end of said latch being projected outwardly by means of a Hat spring 20 positioned beneath the same and always tending to hold it in raised position. This spring will exert a. constant pressure upon the cylinder on the other end of the latch, and the lcylinder 9 is provided with a longitudinally extending .slot 21 therein, in which this end of the latch is adapted to be positioned when the cylinder is rotated a predetermined distance. This will automatically lock the cylinder in position and it is necessary to lrelease the latch by compressing the handle of the same -before the cylinder may be again rotated.

The outer end of the casing 7 is screw threaded and adapted to be positioned thereon is a cap. 22, which is internally threaded for engagement with said end and which has its outer end formed with an opening therein with a recessedI portion 23, and a stop lug 24 positioned'diametrically opposite said recessed portion.l Through this cap and into the slot 10 in the cylinder is adapted to be positioned the actuating key 25 which forms the operating means for the lock. This key is so formed that when positioned within the cylinder, the outer end of the same will strike the spring pressed tumblers and release them, so that the cylinder may be readily turned.

In operation when the p arts of the valve lockare assembled as shown in Figs. 2 and 3 of the drawings, it will bev obvious thatv the key v25 being positioned within the rotatable cylinder 9 will release the locking tumblers and allow the cylinder to be rotated. .This rotatable cylinder is so connected with the valve 2 through the operating rod 4 that when the cylinder is in locked position the valve is closed. To open the valveit 1s only necessary to turn the key 25, whereupon the cylinder will be rotated a predetermined distance until the valve is opened. When the valve is opened the slot 2l within the cylinder will be positioned directly beneath the latch 19, whereupon the end of the latch will drop into said slot, owing to the fact that the said latch is spring pressed, and any further rotation of the cylinder will be prevented. This will automatically lock the valve in open position.

When it is desired to release the Valve it is necessary to press inwardly upon the handle portion of the latch and lift the projected end of the same from the slot 2l in the cylinder, whereupon the cylinder may be once more rotated back to its first position, and upon withdrawal of the key the tumblers will automatically lock the same against additional rotation. The turning of the key is furthermore additionally limited by the stop 24 in the open end of the cap 22, and the recessed portion 23 allows the key to be positioned in the cylinder when the slot therein alines with this recess. The automatic latch which locks the cylinder prevents the key from turning when the valve is opened, and makes it necessary before the key can be turned or removed to release the latch.

From the foregoing description of the construction and operation of my improved valve lock, the manner. of applying the same to use, and the operation thereof will be readily understood, and it will be seen that I have provided a simple andeiiicient device of this character for carrying out the objects of the invention.

I claiin:

1. A device of the class described comprising a casing, a key actuated rotatable cylinder in said casing, spring pressed tum blers to normally lock the cylinder against rotation and releasable upon insertion of the key, and a manually releasable latch to automatically lock the cylinder when lthe same is rotated a predetermined distance.

2. A device of the class described comprising a casing, a key actuated rotatable cylinder in said casing, spring pressed tuinblers to normally lock the cylinder against rotation and releasable upon insertion of the key, said cylinder having a depression in its outer surface, a spring pressed manually releasable latch pivoted on the casing,

and one end of said latch extending through witnesses.

WILLIAM I-IENCKLER.

Witnesses:

JOHN C. FARBEH., CLARA LAMPERT.

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