US1709594A - Lock for gas cocks - Google Patents

Description

April 16, 1929. H. M. ROSENBERG LOCK FOR GAS COCKS Filed June 14. 1928 IIIIIIIIIIA GHQ-rungs Patented Apr. 16, 1929.

UNITED [STATES HARRY M. ROSENBERG, OF IPORT CHESTER, NEW YORK.

rocx FonG s-coeKs.

Application filed @6114,

This invention relates to a safety looking device for gas cocks, particularly for the gas cocks on kitchen ranges, and has for an object to provide a device of this character with a double locking feature so that there is a minimum of danger ofsmall children opening the gas cock,- andin whlch there is'no danger'ofthe cockbeing mad vertently opened; I

Itisalso an object of the invention to provide a safety lock of-this type which is of'very simple construction, and therefore, may be manufactured at relatively low cost and will not be liable to get out'oforder' in operation. I

It is a still further object of the inventionfto provide an. improved clamp for mounting the-device which will not project outwardly from the piping, and there fore, will not interfere with cleaning of the range and will not injure the hands orgar-- ments of the user.

With the foregoing and other objects 1n view, the invention consists in certain novel features of construction, combinations :and

. arrangement-sof parts as will be more fully described in connection with the accompanying drawing. In this drawing, I

Fig.1 is a top plan view of a portion of the gas supply pipe and a gas cock ofa kitchen range showing my device applied thereto, the elements being shown in 'the locking position. j f I Fig. 2 is a transverse section substantially on line 2-2 of Fig. 1.

Fig. 3 is a vertical section through the body portion of the device removed from the pipe. Fig. 4 is a'front elevation thereof with the outer element of the clampremo'ved.

Fig. 5 is a'detail section substantially on line 5-5 of Fig. 4 with thefa'uxiliary lock removed.

v Fig. 6 is a. detail elevation of the lower 0nd of the .body member showing the construction before the guiding lugs are forced to the operative position. i Fig. 7 is a detail cross section of the body member, and v j I Fig. 8 is a frontelevation of theuclamping member; p

' There have been attempts to make safety lock devices for thegascocks of kitchen' ranges to prevent-inadvertent opening thereof and also, to prevent opening of these cocks by small children. These devices'have 1928. Serial No. 235,310.

various objections, such as being compli-.

catedfunsightly andin the way where they interfered with proper cleaning of therange, and some of them have engaged under the handle of the cock so thatflthey tended to raise it against the action of the spring at the bottom ofthe valve plug so that should this spring become broken or weakened they tended to raise the valve plug and cause leakage of gas, so that they were worse than nolocking device at all. I have provided an improved locking means "which in .no

way affects the operation of the gas'cocl'r when in the locking posltion except to prevent lllfLClVGI'tGIlh operation thereof as it also'provide'adouble lock which is easily accessible for operation by the user of the .merely lies in front ofthe handle and I I In the drawing, theymain' gas supply of theirange is shown atlO from'the rear of which leadsthe usual branch 11 extending tothe burner12 and in which is the usual type of gas cock13 having atapered plug 14L operated by thehandle 15, the plug being held in the body by the usual spring 16. I 7 My improved lock comprises a body n 1erh.- her 17 which may be made of sheet metal or a; die'casting, In the drawingit is shown as made of sheet metal, one side portion of which is bent upon itself to form :r'non clrcular guide 18. The guide'is preferably dle engaging member 19. The handle fen- 'gaging member 19 has a lat-er'al'extension to substantially. rectangular to guide for reciprocatory movement a similarly shaped hanhas openings '22 for clamping. screws 23 i 1 which 'extend through openings in the fcct 24 of a clamp or strap 25. This is of substantia'lly U-shape and extends around the outside of the pipe. 10', and the body men ier 17' has ears 26 cut therefrom and forced pipe. Thus by tightening the screws 23 the "ears of the body are clamped tightly against'the pipe'10 hy means of the strap outwardly to engage the inner wall efthe- 25.. It is also preferred that one'or both of theop'enings- 27' in the clamp '25 "forthe ill) be noted that the body llnembel" 17 is substantially straight and is located on the inwhen the member is bent to the shape shown Cir [for this member.

fore, clamps against the opposite sidcs of in Figs. 6 and 7 there is one of these lugs on each of the flat sides of the guide 18. A suitable die is then brought against the end of the guide forcing the ends of these lugs inwardly to the position shown in Figs. 8

and 5 to form a guide and stopfor a pin 29 threaded into the lower end of the member 19. vA coiled spring 30 embraces this stud and rests at its lower end on the upper sides of these lugs and at its upper end against the lower endof the member 19, thus I tending to force this member upwardly to its locking position shown in Figs. 2 and 3. This movement is limited by the head 31 of the screw engaging the outer sides of'the lugs 28. The upper position of the member 19 may be adjusted for different handles by adjusting the screw 29.; .7 7 l An auxiliary lock is provided for locking this handle engaging member 19 in its handle locking posi ion. In the form illustrated it comprises a substantially U-shaped, flat, resilient member32iwhich has inwardly struck lugs 33 in its opposite sides extending into openings 34: in the opposite sides of the guide 18, and this spring clip may have a lug 35 for operation of the clip. 'The spring action of this clip tends to press the side members thereof against the opposite sides of the guide 18 while the lugs 33 form pivots The spring action, therethe guide 18 and frictionally holds the lockmg member 32- m dilferent positions as shown in solid and dotted lines in Fig. 4.

\Vhen moved to the uprightor lower. position as shown in full lines in Figs. 2, 3 and 4 it will be apparent that the body of the cross] portion of the spring clip is below and in line with the head 31 of the screw 29 and will, therefore, prevent any one pushing the handle engaging member 1.9 downwardlyrlf a person should push downwardly with great pressure on the member 19 the head of the screw would merely press against'the center of the cross-portion 36 and would tend to bend this downwardly. T is action will draw the side members 32 still more tightly against the opposite sidesof the guide 18, and therefore, there no danger of one forcing this locking-device from the body member, as the greater the pressure applied to the member-'19 the more firmly will the member 32 be clamped to the guide.

In operation the normal position is shown in Figs. 1, 2 and 3. In this position the handle engaging member .19 is in front of the handle 15 of the gas cock and the vertical rearwall of the member 19 will prevent one moving thehandle forwardly to open the. valve. If the person using the range wishes to open the valve all that is necessary is to swing the auxiliary lock 32 to one side, as indicated in dotted lines,.Fig. 4, then press downwardly on the upperend of the member 19 which willpermit manipulation of the handle 15. After sing, the handle 15 may be merely swung baclrwardly to the full line closed position as in the ordinary range. During this action the handle will engage the inclined or camming surface 21 of the member 1.9 and. force this member downwardly, and as scenes the handle is in. the closing position the spring will force the member 19 upwardly to the locking positionin front of the handle shown in Figs. 1 and'2. Thiswill prevent all ordinaryinadvertent opening of the Valve.

It has been found that sometimes small children will play with the locking-device and would even be attracted by it as there might be a certain clicking noisein its operation and might attract them as something to play with. However, if as scenes the valve i closed the auxiliary lock-32 is swung 'to the lower positionshown' in fulllines in Figs. 3 and a, the bolt or handle engaging member 19 is locked in the locking position. Thus there isia double lock for the gas cook. Theauxiliary lock 32 is inconspicuous, and being mounted at the lower end of the guide behind and below the pipe 10 it is practically hidden and not ordinarily found by small children, and even though it is found its operation is not obvious. This device has, therefore, proven to be very effective in actual practice in preventing manipulation of the gas valve by small children. Having thus set forth the nature" of my invention, what I claim is:

1. A locking device for coclrs comprising aclamp, a movablehandle engaging member supported by saidclamp, means tending to hold said member in position to lock the handle "in closed positiomand movhandle locking position, and a shiftable member for locking thehandle engaging member in handle locking position. v

3. In a locking device for gas cocks, a

sheet metal body member one side portion.

of which is'folded upon itself to form a CFI non circular guide, a non-circular handlelocking member mounted'to reciprocate in said guide, a spring tending to shift said member to handle locking position, and a clamping member secured to said body member and capable of mounting it on a support.

at. In a locking device for gas cocks, a

body member, means for securing said mem her to a gas pipe, a bolt movably mounted in the body and adapted to be in the path of movement of the gas cock handle, a spring tending to shift the bolt to this position, and a locking means for locking the bolt in this position.

5. In a locking device for gas cocks, a body member, means for securing said member to a support, a locking bolt Tmovably mounted. in the body and adapted to lie in the, path of movement of the gas cock handle, said bolt being provided on theopposite side at its upper end with an inclined cam surface arranged to cooperate with the handle to retract the bolt when the handle is moved to closed position, a spring tending to move the bolt to handle locking position, and a shiftable lock for locking the bolt in extended position.

6. In a locking device for gas cocks, a body member of sheet metal folded upon itself to form a non-circular guide, a noncircular handle engaging member mounted to reciprocate in said guide, means for mounting the body on a support, yielding means tending to shiftv the handle engaging member to locking position, and an auxiliary lock pivoted to the lower end of the guide and capable of locking the recipro-. cable member in handle locking position,

7. In a locking device for gas cocks, at body member of sheet metal folded upon itself to form a non-circular guide, a noncircular handle engaging member mounted to reciprocate in said guide, a clamp for securing said body to a support, a-spring tending to shift the handle engaging member to locking position, stop lugs on the lower end of said guide, and means carried by the handle engaging member cooperating with said lugs to limit movement of said member under action of the spring.

S. In a locking. device for gas cocks, an.

upright body member capable of being positioned at the rear of a horizontal gas pipe and forming an upright guide for a movable locking bolt for the cock handle, a spring tending to hold the bolt in locking position, a substantially U-shaped clamp embracing the pipe and extending at the top and bottom thereof to the upright side of the body so there are no projections forwardly of the pipe, and means for securing the clamp to the body to mount the body on the pipe. 1

9. In a locking device for gas cocks, a movablehandle engaging member, a support for said member, a spring tending to shift said member to'handle locking position, an

extension on said member capable of pro-' jecting below'the support, and a resilient locking member pivoted to said support-and capable of movement to and from the path of movement of said extension.

10. In a locking device for gas cocks, a

body member having a guide for a reciprocable handle locking member, 'meansfor mounting saidbody on a support, said recipro'cable member having an extension capable of projecting below the lower end'cf the guide, a spring tending to hold the handle locking member in locking position, and an.

auxiliary locking member of substantially U-shape pivoted to the lower end of the guide and movable to and fromthe path of movement of said extension.

11. In a locking device for gas cocks, a body member forming a guide, means for securlng said member to a support, ahandle locking member mounted for reciprocating movements in sa1d-'gu1de, a spring tending to shift said member to locking position, an extension on said lockmg memberextend ng from the lower end of the guide, and a substantially' U-shaped spring metal member,

yieldingly embracing the opposite sides ofthe guide at its lower end and having lugs in openingsin the walls of the guide to form pivots on which said member may be swung toand from the extension. g

In testimony-whereof I aflix my signature.

HARRY M. ROSENBERG.

path of movement of said

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