US1395678A - Valve-lock - Google Patents

Description

L. R. JONES.

VALVE LocK. APPLICATION FILED AUG.14 |919.

1,395,678-, Patented Nov. 1,'192'1.

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VALVE LOCK.

APPLICATION FILED AUG-14| 1919.

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Patented Nov. 1,' 1921.

L. R. JONES.

VALVE LOCK.

APPLICATION FILED Auml.. 1919.

Patented Nov. 1, 1921.

3 SHEETS--SHEET 3.

50 Y arranged vso that the valve may be locked T ES PATENT OFFICE.

LAWRENCE Rl JONES, OF PEORIA, ILLINOIS.

VALVE-Loox.

Specification of Letters Patent.

Patented N ov. 1, 1921.

Application led August 111-, 1919. Serial No. 317,404.

To all whom t may concern.'

Be it known that I, LifwvRENoe R. JONES, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Valve-Locks, of which the followingis a specification.

v'The invention relates to valve locks and has especial reference to improved means for locking a valvewith its port open or closed.

One of the objects of theinvention is tov provide in a valve locka handle, in coperation with ,other partsV of a valve structure, whereby the valve may operativelyrbe moved vto open and close the valve port, and which is made in two major parts 'hinged together. VThe extendedj freeV end of the handle, by which the valve r'is' moved, is adaptedtobe folded back over and above the part of the handle that is directly attachedr tothe'valve stem and is adapted to be locked in folded position' only when the valve occupies a predetermined position with reference 'to Vfits port'.V VAt, the time the handl'eis locked in folded position, it moves parts that will'vpositively maintain the valve in theposition in whichit has been placed by the handle, and the arrangement is such thattheJ handle may be locked in folded position only when the valve has been moved '5to ya predetermined extent, that is tosay,

to open position or to closed position, as the oase'may be, it not being possible to foldthe handlev and lock the valve at any intermediate position.-` j K Furthermore thearrangement is such that thevalvehandle cannot be removed from the valve stem when the valve is locked, because theextended end of the handle is folded 'over and guards'fthe means by which` the handlelis held'to the stem. y

'The' normal positionof the'va'lve handle is in its folded position, and in this position it to be locked'. by vuse lof a padlock orthe like;V The valve-operating part may be constructed lso that the valve may be positively locked',A Yby manipulation of the handle,

when the .valve is either` entirely 4openrorl completelyfclosed, but not in any intermediate position, orit maybe conveniently In-the drawings, I have vvshown a valve:

substantially the same as that disclosed in my copending application Seria-l No. 281,028

filed March 6, 1919, in which the claims are' improvements in the valve tion will sons skilled in the art, from a consideration of the following description when taken in conjunction with the drawings, wherein Figure 1 shows a plan view of a. valve with my handle attached theretorand in extended position adapted to rotate the valve stem to close the valve. n

Fig'. 2 is a side elevation of the valvel with the handle in folded position ready to be locked, showing it in extended position in dotted lines.

Fig. 3 is a transverse section through the valve, taken on line 3 3 of Fig. 1.

Fig. 4C is a transverse section of the valve casing showing the valve port open.

Fig, 5 is a central section through the valve stem and the handle, showing the parts in folded position. i

Fig. 6 shows the tended position.

Fig. 7 is a section taken on line 7 7 of F ig. 5. f p In all the views the same reference characters are employed to indicate similar parts.

10 is a casing, substantially the same as that disclosed in my prior application to which attention has heretofore been called. 11 is the valve stem, rotatable to move the valve disk 12 so that the port 13 will register with the port 14C of the valve casing 10 to open the valve port. Secured to the valve stem is a bifurcated arm 15. having between its two prongs a stud 16 that projects upwardly from the valve plate 12. When the steml is rotated the arm 15 will be moved to the dotted line position, shown in Fig. 4, whereupon the port 13 will bein register with the openings 14 through the valve casparts in section in ex-V through the inner end 24, of the part 22, and through the prongs 20 and 21 of the part '17. The part 22, of the handle, is provided with .a slot 25 which overlies the staple 26 that .,ible in the inter-dental space 29 between the- .The end of the Yhub 36 provides a shoulder rises from the part 17 and which contains an opening or perforation 27, Within which to insert a padlock, or the like, so that the part 22 cannot be straightened out into dotted line position shown in Fig. 2 to operate the valve unless the lock has been removed from the slot 27. The part 22, of the handle, is provided with a. nose 2S .which is insert teeth 30 and 31 of the dog 32. The dog` 32 is pivoted on abolt v33 that passes through flanges 34 depending from the part 17 of the handle. The lower end 34 of the dog-32 bears against a hub 36 that surrounds the 39, and when the end 34 of the dog32 is opposite the shoulder l39, then the part 38 will press uponthe upper part of thefdog 32 and move V.the projection 34 behind the shoulder, whereupon the handle 22 may be moved to horizontal position and the lock inserted in the staple 26, as clearly Vshown in Fig. o.

'Now if aV shoulder 39 is provided only on one side ofthe hub 36, clearly, the handle part 22 may not be depressed into locking positionrbecause the projection 34 ofthe dog will be in contactwith the inclined wall 37 of the hub 36, preventing the part 22 of the handle frombeing moved to locking position. If desired, however, another shoulder in the hub l26 may be provided substantially on line 40 as shown in Fig. l, whereupon the hanvdle may then be locked when the valve has been Amoved to the position that it would occupy when 4the projection 34 of the dog` is i behindy the shoulder indicated by j[he dotted' line V4 0 or when the valve is closed. The shoulder, indicated by the dotted line 40, which may or may not be used', may be enrf ployed in addition to the shoulder 39, or it may'be used instead of the shoulder 39, Yaccording to the exlgencies presented bythe NOW it] lwai `be, manifest that, when the handlepart 22 is in locked position, -the dog- 327 is thereby forcedlbehindthe shoulder 39, and therefore the handle cannot be rotated andthe valve stem 11 must remain stationary to hold the valve in whatever position,

maybe Y j After the valve has been locked, as shown 1n Fig. 5,-i and itis desiredto unlock it, Orf

close it, as the case may be, the padlock is removed from the orifice 27 of the staple 26, and the va'lve handle part 22 is rotated `on the pivot 3, whereupon the nose 28 Vof thejhandle will enter the space 29, between the teeth 30 and 31 of the dog, and lift the dog'so that the lower projection 34 will be raised out from behind the shoulder 39, formed on the hub 36, whereupon the valve may be rotated, but, in the` particular ,em-V bodiment exemplified, itprrnay not be again locked in the position shown in Fig'. 5 until it has been returned, so Vthat the dog 34 may again enter the space behind thejshoulder 39, because the projection 38, ofthe handle part22, bearingupon the uppersur# face of the dog 32 willk not permit the part 22 to be entirely depressed until the -projec' tion 34 of the dog has been moved anextent shown ink Fig. 5, wherein it is located behind the shoulder 39.-

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It will be noted that thehandle part 22 @verlies the screw 19, when thehandle is in lockedY position, vso that the screw 191may not be removed and therefore the Vhandle fore there is no possibility of moving the valve to a new position solong asV theparts are locked inthe manner-described.

While I have herein shown a single ein! bodiment of Thy-invention, for the purpose of clear disclosure, itwill be manifestfto persons skilled in the art, that considerable variation in the configuration and disposi.

tion of the parts is permissibleywithin theY handle providing two parts, anrinner part,Y

removably secured tothe said stem and an outer part hinged to the inner part1 and adapted to be folded over andto belocked to the inner part; yan obstruction in the -path of the handle .when moved towardfolded po@` sition,'.to prevent the .parts frombeing locked togetherto hold `thevalve,.;except when the Ycannot be taken'from' the valvefstem "11 when the parts are locked together; There-Y ico valvek is Yin a pre-selected' position,- ,andV

means for securing the inner part ofthe han!y dle to the stemA renderedinaccessible bythe.

overlyingfoldingpart. I., Y c,

2. A valve lock havingin combination af a handle, havingan inner part removably se cured to the stem andl an outer part, hingedf to theextended end ofthe innerpart and adapted to beA` folded over and locked tothe Vinner part, andrwhen folded, overlying rand.VY

ofthe `handle vwhen. moved towardv foldedy position .to prevent; the vhandle. from rotating; the valve when a part thereof .is behind the shoulder and a part of said handle adapted to bear on the periphery of Said hub to prevent said handle parts from being locked together When the saidA handle part is removed from behind the shoulder.

3. A valve lock having in combination a valve stem; a casing from which it projects; a handle, having an inner part removably secured to the stem and an outer part hinged to the extended end of the inner part and adapted to be folded over and locked to the inner part and when folded, overlying and rendering inaccessible the handle securing means; a hub extending around the valve stem and havin a notch providing, with the hub, a shoul er, a dog pivoted to the inner part of the handle having a part to drop behind said shoulder when the valve has been placed in a. predetermined position by the handle, and having a part to prevent the handle parts from being looked together when the valve is in any other posinon.

In testimony whereof I hereunto subscribe my name.

LAWRENCE R. JONES.

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