US1534965A

US1534965A - Lock for valves

Info

Publication number: US1534965A
Authority: US
Inventors: Henry C Keeler
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-04-27
Filing date: 1920-04-27
Publication date: 1925-04-21
Anticipated expiration: 1942-04-21

Description

April 21, 1925. I 1,534,965 5 H. C. KEELER LOCK FOR VALVES Filed April 27, 1920 2 Sheets-Sheet l A ril 21, 1925.

H. KEELER LOOK FOR VALVES Filed April 1920 Sheets-Sheet 2 v glwuanfoz Patented Apr. El, "i925.

UNlTtill).

HENRY C. KEELEB, G1?

Application filed April 2'7, 1920.

T 0 all 113720722 it may concern.

Be it known that I, Hump: G. Keenan, a citizen of the United States, residing at ltetsil, in the county of Kitsap and State of Washington, have invented certain new and useful Improvements in l'iocks for Valves, of which the following is a spccilication.

This invention relates to improvements in looks for valves and comprises a housing adapted to be placed in a pipe line intermediate its supply and discharge, means within the housing for controlling the supply through the pipe line, a lock casing in said housing, a lock shatt operating said controlling means, tumblers controlling the movements of said lock shaft and a key adapted to pass through the casing and the housing and release the tumblers and oscillate or rotate the lock shaft for operating the controlling means. The invention further comprises a series of tumbler openings and tumbl rs in the loci: casing and corresponding openings in the lock operating shaft, so arranged that the tumblers can be interchanged to employ any number of tumblers in different openings, thus making a large number of combinations, each combination requiring a dilierent key to operate the look, all as more fully hereinafter set forth and as claimed.

The invention further comprises a simple and e'li'ective locl: comprising a small number of inexpensive parts. While I shall describe the look as particularly applicable to valves for automobiles, it may be used in connection with other devices.

In the accompanying drawings showing one form or specific embodiment of my invention,

Fig. 1 is a side elevation of a carburetor showing in section my improved lock and valve in the pipe line leading thereto;

Fig. 2 is a perspective view ot the key, lock, cylinder and valve in their separated relation and removed ,tt om the housing;

Fig. 8 is an enlarged horizontal transverse sectional view, taken on thcliue 3-El o'l," Fig. 1;

Fig. lis an enlarged horizontal. transverse sectional view, taken on the line l-'1:, Fig. l:

waists PATENT QFFlCE.

'WAfiI-IINGTON.

LOCK FOR VALVES.

Serial No. 376,950.

Fig. 5 is an enlarged horizontal sectional view of the lock taken on line 55 of Fig. 1 and looking upwardly;

Fig. 6 is an enlarged vertical sectional view taken through the lock;

Fig. 7 is a transverse horizontal sectional view taken on the line 77, of Fig. 9;

Fig. 8 is an enlarged horizontal transverse sectional view taken on the line 8-43, Fig. 6;

Fig. 9 is an enlarged vertical sectional view showing the tumblers locking the valve operating stem against rotation.

Referring now to the drawings, 1 represents a carburetor of a gas engine having the usual intake connection 2 to which my improved combined valve and lock housing 3 is connected in any desired manner, but preferably by the screw-threaded connection 4 as shown in Fig. 1 of the drawings. The housing 3, as shown, is ofa cylindrical form having its bottom conical shaped as indicated at 5 and into close fit with the conical valve 6, controlling the passage of oil from the housing through the passage 7 to the carburetor. The valve 6 is provided in its lower wall, with a passage 8 adapted to register with the passage 7 leading to the carburetor and with the passage 9 leading through the nipple and to which is connected a pipe 10 leading from the vacuum tank or the gravity feed oil supply of the automobile. The valve housing above its conical bottom has secured therein a lock casing 11 (hereinafter described) which has its upper end provided with a lateral flange 12 resting upon the annular seat 13 formed on the interior of the valve housing 3 which is formed by the reduced portion 14. The said reduced portion above the lock casing is provided with internal threads 15 into which is secured the plug 16. This plug, as shown, rests upon the upper face of the lock casing 11 and holds the same in engagement with the upper face of the valve 6, whereby it is tightly held on its seat. The plug 16 is held against removal by the transverse pins l7 passing through the valve housing whereby the removal of the plug is prevented so that unauthorized persons cannot remove the lock casing from the housing and operate the valve. The plug an enlarged central open-- the insertion of the key 19 carrying the oppositely disposed lugs or fins 520. This insures the key being inserted in the proper position to operate the specitic predcterminedv combination as will be later described.

The lock casing, as shown, comprises a cylinder body portion 11 having a cent '21 enlarged bore 21 extending from its upper end to a point below the center; the casing also has areduc-ed opening communicatinc therewith and extending through the bottom leaving: the thick wall surroimd ing the same. ll swall 23 is provided with a series of} cylint 'ical holes 24 cenn'nunieating with the hoQioinQS T is provided with mg 18 to allow of the bore 21. .i have shown eight of these holes which will make a great number of combinations but the same can be increased or decreased as later described without dapartine from my invention. Extending through the opening is a shatt or red 26 which has its lower end so ared or. angular and adapted to tit into a recess 27 in the valve 6 whereby said valve isrotated therewith, The valves being enclosed in the housing can only be rotated by means of the shaft or red 26.

lVithin the holes 24; are the sliding tumblers 28 which are of a cylindrical form closely fitting the walls of the openings and nor mally pressed. upwardly by the springs 29, as shownyin Figs. (3 and 9. rodv "26 about midway its length is provided with a annular flange 30 resting on the bottomQS with its periphery closely fitting against the bore 21. The lower face 01'? this flange 21 is provided witha series oi' openings ill rcgisterahle with the holes 24: and of a ize to allow the tumblersQS to enter the same. The tumblers are limited in their up 'ard movement by, providing reduccd openings as at andcon'n'nunicatiup; therewith are the reduced openings 33 extending through the upper 't'aceof the flange.

lfhile l: have shown eight recesses for the tinnl'ilers and eight openings in the flange is understood that it is not necessary that eight tumblers be used in each. locl-z but'one or more tun'lblers could be used and in such an event the receses 31 in the flange l-lo which havcno tumblers below them may be plugged or may. be-omitted.

.ihe sing 11 is closed by acap held thereon by means of a screw 35 and saidcapisprovided with a central openingBG ot a. size larger than the diameter ofthe shaft 26, which extends up therethrough and is tlush with theupper face of the cap. This arrangement leaves an annular space around the shaft to allow the hollow key 19 to pass down over the shaft within the casing. The cap 3 L is provided with slots 38co1nmunicating with thecentral opening to allow the fins 20 carried by the key to pass there- The sh aft or scribed. The key 19 as shown is of a sleevelike form and is provided at its lower end with projections 40 adapted to enter the contracted openings 33 in the disks whereby the tumblers can be forced from the recesses 81 flush with the lower face of the flange 30 so that the same can be rotated. The rota-- tion of the disk or shaft is accomplished by providing; a. fin 41 carried by the shaft 26 above the disk 21 and adapted to enter a slot 42 in the lower edge of the key 19, thus relieving the tumbler operating; projections from any strain of the turning operation.

l heupper end of: the key may be made in any desired .t'ornito provide the necessary gripping surface; to enable the. key to be turned.

In operation the key is inserted in the casing surrounding the rotating JTlBlnbBB, 26, the-tins 2O assuring that the projections 40 carried by the lower end of the key will enter the openings inthe flange 30 to force the tumblers down. The continued d0wnward movement of the key forces the tum blers below the lower face of the flange. In this downward movement the fins 41 on the shaft Qtrhas enteredthc slot :12 in the lower end of the key and upon the rotation of the key the disk is rotated by this engagement. J'fhe rotation of the flange rotates the member so which in turn rotates the valve 6 'thus allowing; the liquid to pass through the pipe line as heretofore described. In different locks the tun'ililers are arranged in dillcrcnt openings and the key arranged with projections to correspond to the numher and spacingoi 'the tumblers. The remaining openings in the disk are plugged or dispensed with. By using one or up to eight tumblers and corresponding projections onthc he; there are 312 combinations. it being understood that this number of tumblers could be increased or decreased. ln

1 ill llfr from below, and a key having projections entering the openings from the upper side and forcing the tumblers from within the openings in the rotating member and said key having interlocking connection with the rotating member for rotating the same.

2. A lock of the character described comprising a casing, a rotary controlling membcr therein and extending through the lower end of the casing, a flange carried by said member and having a series of openings therethrongh, spring pressed tumblers carried by the casing and entering said openings from below, and a key adapted to slide over the controlling member and having projections on its lower end adapted to enter the openings from the upper side and force the tumblers from within the openings in the flange and a pin carried by the rotary member for entering a notch in the lower end of the key whereby the rotary member is rotated thereby.

3. A look of the character described com prising a casing, a rotary controlling member therein and extending through the lower end of the casing, a flange carried by the rotary controlling member intermediate the upper and lower ends of the casing, and having vertical openings therethrough having reduced upper ends, spring pressed tumblers carried by the casing and entering the lower end of the openings, a cylindrical sleeve like key passing over the upper end of the rotary controlling member and having projections entering the openings and forcing the tuniblers below the lower face of the flange, interlocking means between the key and the rotary operating means for rotating the same and cooperating positioning means between the key and the casing whereby the projections will enter the openings for releasing the tumblers.

l. A lock of the character described comprising a casing. a cover closing the upper end thereof and having a central opening therein, a rotary controlling member in the casing and of a diameter less than the opening in the cap, a flange carried by the member intermediate the upper and lower ends of the casing and having a series of vertical ciii'cumfercntially ar 'anged openings therethrough having reduced upper ends, said casing having a series of circumferentiallv arranged recesses adapted to register with the openings in the flange, spring pressed tumblers in said recesses and adapted to be normally held upwardly within the end of the openings in the flange, a cylindrical sleeve like key passing over the upper end of the rotary controlling member and having projections entering the openings in the flange for forcing the tumblers below the lower face of the flange, interlocking means between the key and the rotary member for rotating the same, and cooperating positioning means between the key and the casing whereby the projections will enter the openings carrying the tumblers.

5. A lock of the character described, comprising a casing, a controlling shaft therein and connected to the movable member to be operated, a flange carried by the controlling shaft intermediate its ends, tumblers in the casing and entering openings in the flange, a key adapted to slide over the controlling shaft and having projections adapted to enter the openings in the flange and force the tumblers therefrom and allow the shaft to be rotated, and interlocking means between the lower end of the flange and the key whereby the flange is rotated.

(3. A lock of the character described. comprising a casing, a controlling shaft thereon and connected to the movable member to be operated, a flange carried by said controlling shaft intermediate its ends, spring pressed tumblers in the casing and normally entering openings in the flange, a hollow key adapted to receive the shaft and having projections adapted to enter the openings in the flange and force the tumblers therefrom and allow the shaft to be rotated and interlocking means between the flange and the lower end of the key whereby the flange is rotated by the key.

7. A lock of the character described comprising a casing, a. controlling shaft therein, and connected to the movable member to be operated. a flange carried by the controlling shaft and having a series of openings, spring pressed tumblers carried by the casing and entering some of said openings, and a key having projections at its end to enter a series of said openings in the flange, means carried by the casing for causing the projections to enter the openings with the tumblers therein whereby the tumblers are forced from the flange and the shaft rotated and interlocking means between the flange and the lower end of the key whereby the flange is rotated.

8. A lock of the character described com prising a casing, a controlling shaft therein and connected to the movable member to be operated, a flange carried by the controlling shaft and having a series of openings, spring pressed tumblers carried by the casing and cnteriiig some of said openings and a key having a number of projections less than the number of openings in the flange and means carried by the casing for guiding the key so that the projections on the key will enter the openings carrying the tumblers whereby the tumblers are forced from the flange and the shaft rotated by the key.

9. A look of the character described comprising a casing a controlling shaft therein and connected to the movable member to be operated, a flange carried by the controlling shaft intermediate its ends, tumblers in the casing and entering some of the openings in ll'ill the flange, a key of :1 cylindrical form to receive the shaft and having projections at its lower end arranged to enter the openings in the flange and interlocking means between the lower end of the key and the flange whereby the flange is rotated by the key.

10. A look of the character described com prising a casinga controlling shaft therein and connected to the movable member to be operated, a flange carried by the controlling shaft intermediate its endand having, a series of openings, tumblers in the casing: and: enteiing5S0111e of the openings in the flange, and akey, of mcylindrical form to receive the'upper endoi the shaft projections carried by the lowerencl of the key and of a less numberthan thetopenings in the flange and adapteclto enter the openings carrying the tumblers, means for properly guiding the key, and interlockingmeans between the key and shaft for rotating the same.

In testimony whereof, Iaflix my signature.

HENRY o. KEELER.