US1014168A

US1014168A - Valve.

Info

Publication number: US1014168A
Authority: US
Inventors: Johnston Nolan
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-11-28
Filing date: 1906-11-28
Publication date: 1912-01-09
Anticipated expiration: 1929-01-09

Description

J; NOLAN.

v VALVE.

APPLIGATIONVPILED 11011.28, 190e.

1,014,168, y .4* Patented Jan.9,1912.

WITNESSES Q INVENTOI? ZM/f. aa/ly N WWQQW mam gw JOHNSTON NOLAN, OF PHILADELPHIA, PENNSYLVANIA.

VALVE.

Specication of Letters Patent.

Patented Jan. 9, 1912.

Application filed November 28, 1906. Serial No. 345,527.

To all 'whom it may concern:

Be it known that I, JOHNSTON NOLAN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have inventedy certain new and useful Improvements in.

Valves, of which the following is a specification.

This invention relates to valves and particularly to that class of valves known as blow 0E valves, for steam boilers. The .object of the invention is to provide a valve of simple and efcient construction whereby the steam or other fluid may be eii'ectually shut off, and a further object of the inventionv is to provide for the adjustment of the parts when they become worn, all as will be hereinafter fully described and particularly pointed out in the claims.

In the drawings Figure 1 is a. longitudinal section through a valve embodying my invention, showing the valve closed. Fig. 2 is a transverse section thereof, as on the line 2-2 of Fig; 1, showing the valve open. Fig.'3 is a transverse section, as on the line 3-3, of Fig. 1.v Fig. 4 is a transverse section as on theline 4-4 of Fig. 1.

4 designates a cylindrical casing having lateral openings 5 therein, constituting the inlet and .outlet passageways of the valve. One end of the casing 4 is closed by a head 6, and the interior of the casing is provided with a suitable bushing 7 Fitted to the interior of the casing, is a piston 8, comprising a body portion 9, having` a flange 10 on one of its ends, and a stem 11 projecting from the other of its ends;

collars

12 and 13 surrounding the body portion 9, and having rings 14 and 15 between

theI collars

12 and 13 and the collar 13 and flange 10, respectively. The width of the lateral openings 5 in cross sectional area as shown in Fig. 2, is less than the diameter of the Casin 4, to the end that when the piston is move to the position shown in Fig. 1, the packing 14 will engage the interior of the casing 4 all around the openings 5, and thus effectually prevent the passage of pressure fluid from one opening into the other.

Extending transversely through the body 9 of the piston and the collar 13 surrounding the same, is an opening 16 substantially equal in area to the area of the opening', whereby, when the piston is moved in the direction indicated by the arrow, the open- Ving 16 may be brought into register with the openings 5, and thus open the valve by effecting a communication between the openings 5.

. Thelstem 11' is screw-threaded, and extends outwardly, and is slidingly tted to an opening in a boss extending from the end head 6. Screwed on to the outer end of the stem 11 is a hub 18, of a suitable hand wheel 19. The inner end of the hub' 18 is provided with a flange 20 in engagement with a flange 21 on the outer end of the boss 17; and surf rounding the hub 18 and boss 17, is a collar 22,v provided on its interior with a circumferential groove to 4 which arev fittedzthe flanges 20 and 21, thus permitting the wheel 19 to be rotated and-preventing its movement longitudinally of the stem 11. In 0rder to prevent the rotation of the stemvll during the rotation of the wheel 19, I provide a key 28 secured to the boss 17, and adapted to slide within a groove in the stem l1.' By the construction just described it will be seen that by rotatingthehand wheel 19 the piston 8 may be moved longitudinally within the casing4 to bring either the opening 16 or packing 14 into register with the openings 5, and thus effect the opening or closing of the valve as described. Thehead 6 is provided witha vent passage 29 to permit the ingress and egress of air to and from the interior of the adjacent end of the casing 4 during the movement of the piston 8 therein. The stem 11 is provided with a longitudinal groove therein l,into which extends a key 28 projecting from the boss 17, to prevent rotationof the piston 8 with the rotation of the hand wheel 19, and insure the registry of the opening 16 with the openings 5. The collars 12y and 13 and the packing rings 14 and 15 are longitudinally movable on. the 'body 9 of the piston 8;

provide the following The body of the piston is provided withr transverse slots 23 through which extends a block 24 having its ends engaged with the collar 12. Bearing against the block 24 is the inner reduced end of ay rod 25, extending outwardly through the rod may be turned.

the stem 11. The inner end of therod25l is slidingly fitted to the stemA 11, andthe Vouter enlarged'end 26 of the rod is screw `threaded and screwed into the outer end of s the-stem`117 whereby; when the rod 25is.

turned, it will engage the block 24 and force the collar 12 toward the flange 10, and thus leffect the adjustment of the packing rings 14: and 15. 'Ihe outer end of the rod 25 is` provided with a nut 27; by means of'which I claim I y 1. In a valve, the combination of a cylindrical casing having an outlet opening and l a lateral inlet opening therein; a cylindrical j piston within the casing having an opening Vtherein aifording' communication between said inlet opening and said 4outlet opening when the piston opening is inregi'stry with said inlet opening; packing surrounding the piston'on one side of the ypiston opening and engaging the piston and the'ca'sing on both sides of 'said inlet openingwhen the piston opening yis out-of registry with ythe inlet opening.; packing surrounding'the piston on the other side of the piston opening and engaging the piston and the casing; a ring separating vthe rst named packing from the second named packing; and means for moving the piston.

2. AIn a valve, the combination of a cylindrical vcasing having an outlet opening and a lateral inlet opening therein; a cylindrical piston vwithin the casing having an opening therein' affording communication between said inlet opening and said outlet opening Y when the piston opening is in registry with said inlet opening; a ring fixed to the piston and surrounding the same adjacent one end thereof; a ring surrounding the piston adjacent the 'other end thereof and movable thereon toward the first named ring; an

" inner ring surrounding the piston and movable-'thereon between the first and second namedrings, said innerring having an opening therein in registry with'f'the piston openp ing; packing surrounding the piston between said Ainner ringand the first named ring; packing surrounding the piston between said inner ring and the second named ring; means for adjusting the rst and second` named rings toward each other; and means for moving the piston.v Y

3. Ina valve, the combination of a cylindrical casing having an outlet opening Vand al lateral inlet opening therein; ya cylindrical piston within the casing and having an iopening therein affording communication between said inlet opening and said outlet opening when the piston opening is in registry with said inlet opening;'apacking ring surrounding the piston and engaged therewithjand with said casing on one side of said inlet opening when the piston opening is'in' registry with-said inlet opening ;-a packing ring surrounding the piston` and engaged therewith and with said casing on the other side of said inlet opening when the piston opening is in registry with said inlet open-V ing; a stem projecting from the piston;

means coperatingvwith the stem for moving the piston longitudinally within the casing; a rod extending through the stem; and means associated with said rod for adjusting the packing Y i 4. Ina valve, the combination of a cylindrical casing having an outlet' opening and a lateral inlet opening therein; a cylindrical 4piston within vthe casing and having 'an 'opening therein affording 'communication between said inlet opening and said outlet opening when the piston opening is in'registry with said inlet opening; packing surrounding thek piston on one'side ofthe 'piston 'opening and engaging the piston and the-"casing on both sides of said 'inlet opening when the piston opening is out of registry with ythe inlet opening; packing surrounding the piston on the other sidey of the piston opening and engaging'the piston and the casing; a stem projecting from the piston ;'means cooperating with the stern for moving the piston longitudinally v within the casing; a rod extending through the stein;

and means associated with said rod for adj usting the packing.

5. In a -valve the combination of a cylin-` drical casing having:Y a 'lateral inletopening and a lateral outlet opening therein, a piston within the' casing and having'an opening movable in to and outofregister'with said inlet and outlet openings; a ring surround-Y ing the piston and having'an opening therein in register with the piston opening, vpacking rings surrounding the piston on each side of the first named ring, meansfor'adjusting the packingrings7 and means for moving u through said stem and engaging said block;

and means coperatingwith the stem for adjustingthe piston. j Y

7. In a valve, the combination of a `'cylindrical casing having a lateral inlet opening and a lateral outlet opening therein; a piston within the easing and comprising a slotted,V

cylindrical body portionhaving a flange on its forward end; a stem projecting from its rearward end, and an'adjustable ring onits rearward end; packing members surroundcoperating with the. stem for adjusting the ing said body portion between said flange piston.

and said ring, ,a transverse block extending .In testimony whereof I aix my signature through the slotted body portion of the pisin presence of two witnesses.

ton and engaging said ring, an adjustable JOHNSTON NOLAN. rod extending through said stem and engag- Witnesses:

ing said block, said rod being provided with ELLA M. WARE,

screw-threads engaging said stem, and means A. V. GROUPE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner 'of Patents. Washington, D. C.