US969770A

US969770A - Gage-cock.

Info

Publication number: US969770A
Authority: US
Inventors: John Rowland Brown
Original assignee: Ohio Brass Co
Current assignee: Ohio Brass Co
Priority date: 1910-03-24
Filing date: 1910-03-24
Publication date: 1910-09-13
Anticipated expiration: 1927-09-13

Description

Patented Sept. 13, 1910.

GAGE 000K. APPLICATION FILED MAB. 24, 1910.

J. R. BROWN.

UNITED STATESEENT omnes.

JOHN ROWLAND BROWN, OE MANSFIELD, OHIO, ASSIGNOR T0 OHIO BRASS COMPANY, 0F MANSFIELD, OHIO, A CORPORATION OF NEW JERSEY.

GAGE-COCK.

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed March 24, 1910. Serial No. 551,340.

To all whom it may concern:

Be it known that I, Jol-1N RowLANn BnowN, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Gage- Oocks, of which the following is a specification.

This invention relates to gage cocks, and has for its primary object to provide an improved construction, combination and arrangement of parts in valves for gage cocks.

One object of the present invention is to provide an improved construction of gage cock valves by means of which the valve may be adjusted axially and ground against the valve seat while the gage cock is in use.

Another object is to provide an improved replaceable valve disk or pencil for devices of this character.

Another object is to provide improved means for pressing the valve against the valve seat, said means being constructed and arranged to make the valve adjusting means accessible while the device is operated.

Other and further objects will appear in the specification and be more specifically pointed out in the claims, reference being had to the accompanying drawings exemplifying the invention and in which- Figure 1 is a vertical, longitudinal section of a valve cock provided with the improvements described and claimed in the specification. Fig. 2 is a section on the line II-II of Fig. 1. Fig. 3 is a detail sect-ion of the valve pencil. Fig. 4 is an end view of the valve pencil. Fig. 5 is a detail elevation of the pencil operating screw or worm.

Referring more especially to the embodiment of the invention shown in the drawings, the body portion of a gage cock is shown in Fig. 1 as comprising a substantially spherical housing 1 provided with a projecting connection portion 2, which portion is provided with a threaded extremity 3 by means of which the gage cock may be secured to any suitable fitting connected with a sight gage or other similar device used on steam boilers or similar devices. The connection portion is provided with a passage 4 leading to an inlet port 5 extending through a nipple like protuberance G into the interior of the valve housing 1. rJhe end of the nipple 6 is made. flat. In the embodiment shown, the outlet or nozzle 7 is provided with a threaded portion 8 by means of which 1t 1s connected in the lower wall of said housing. Projecting from the wall of the housing opposite to the inlet nipple or valve seat G is a tubular portion 9 within which is slidably mounted a valve holder 10. Slidably mounted within the valve holder 10 and freely movable along the axis of said valve holder' is a valve pencil 11 which is preferably of a smooth cylindrical conformation, as shown in Figs. 3 and 4, in order to adapt it to slide freely in the valve holder 10. Said valve pencil 11 is provided at one end with a short fiat bar or slab 12 which is embedded in the pencil 7 when said pencil is cast. To more securely fasten the slab or projection 12 in the pencil 11, said slab is provided with a perforation 13 through which the metal of the pencil 11 flows and hardens when it is cast. The pencil holder 10 is provided for a portion of its length with screw threads in the inner cylindrical wall thereof, said threads being preferably extended to the outer end of the holder.

In order to provide means for reciprocating the pencil valve 11 toward and away from the valve seat 6, a screw or worm 14, the outer threaded portion of the barrel of which engages with the screw threads in the end of the pencil holder' 10, is provided 4with a slot 15 adapted to fit over and engage the projection 12 on said pencil. The other end of the screw 14 is provided with a slot 16 for the reception of a screw driver by means of which said screw may be moved axially of the holder' 10 to force the pencil against the valve seat G.

The tubular extension 9 is provided exteriorly with a reduced neck portion whereon it is adapted to receive a split collar 17 for adjustably mounting a weighted lever to be presently referred to. The cheeks or

oars

18 and 19 of the split collar 17 may be drawn together by a screw 20 to clamp said collar on the tubular projection 9. The cheek 19 is provided with a projecting hub or boss 21 through which extends a pivot 22 upon which is pivotally mounted the weighted lever 23. For this purpose said lever is provided with ears or

lugs

24, 25 by means of which it is supported on the pin 22. In order to limit the upward movement of the weighted lever 23, a lug 2G is provided on the boss 21 for engagement with a flat seat 27 formed on the weighted lever. A weight 28 on the end of the lever 23 serves to impart a tendency to said lever to swing in a clock-wise direction around the pivot 22. In order to have the weight serve to force the pencil ll against the valve seat 6, the Valve holder l() is. provided on its outer extremity with a slotted projection 29 wit-hin the slot of which engages a pin 8() rigidly mounted on said lever 23. In this way any moveinent of the lever 23 is imparted to the valve holder 10, either to press the pencil against the valve seat 6, or to permit the valve lto be moved from said seat. The lever 23 and Weight 28 are so disposed and arranged as to not interfere with the use of a screw driver or other tool for operating the screw 14 while the device is in operative connection with a steam boiler or the like. To permit the introduction of the screw driver, the lever 23 is slotted at 3l and provided with a c-ircular opening 32 opposite the screw 14.

The operation of the device is obvious, but

briefly stated, it is as follows 1 The pencil valve housing provided with a valve seat,

valve ll which is usually constructed of relatively soft metal or composition of metals, is maintained in abutment with the valve seat 6Y by means of the weighted lever 23. When a new valve pencil 11 is inserted in the holder 10, there may be a substantially tight closure of the inlet passage 5, but if there should not be, and in cases where the closure becomes imperfect` through usage, by means of the device shown and claimed in the present specification, the pencil ll may be forced against the valve seatG and at the same time caused to rotate in such a way as to grind the pencil ll to make a perfect steam tight connection with the valve seat 6. It is thus possible to perfect the Valve joint a great number of times duringv the life of one of the pencils ll, thereby securing not only a more perfect valve action, but also a greater economy in the use of devices of this character.

While I have exemplified the invention in the description of the embodiment shown in the drawings, it will be evident that various modifications in the construction and arrangement of parts can be incorporated witho ut departing from the spirit of my invention.

What I claim is.:

l. As an article of manufacture, a pencil valve for gage cocks provided on one end with a fiat end face and with a flattened lug projecting endwise from the other end, said lug being adapted to engage the slotted end of a screw.

2. As an article of manufacture, a pencil valve for gage cocks comprising a cylindrical body and a flattened lug projecting endwise from said body and adapted to fit the groove in a screw head.

3. In a gage cock, the combination with a valve seat, of a valve slidable axially toward said seat, means rotatable and reciprocable relatively to said valve seat for moving said valve against the valve seat, and means interengaging between the valve in the lirst said means for preventing relative rotary movement between the first said means and the valve.

4. In a gage cock, a valve seat, a valve holder, gravity actuated means tending to force said holder toward said seat, a valve slidable in said holder, and means adjustably connected with said holder for supporting said valve against endwise movement, said means and valve being releasably connected to rotate together.

5. In a gage cock, the combination of a valve housing provided with a valve seat, a valve holder slidable in said housing toward the valve seat, a weighted lever movably engaging said holder, a valve slidable in said holder, and means adjustably engaging said vholder for. imparting an axial and rotary movement to said valve.

6. In a gage cock, the combination of a a tubular valve holder slidable in said housing, said holder being threaded interiorly for a portion of its length, a cylindrical -valve pencil slidable in said holder, said j valve being provided with a projection in its outer end, a screw mounted in the threadl ed portion of said holder, said screw being provided with a recess fitting said projection and means where-by it may be rotated, and a weighted vlever movably engaging said holder, said lever being pivotally mounted on said housing and disposed to one side of said holder to permit access to said screw.

7 In a gage cock, the combination with a valve seat, of a tubular valve holder movable toward said seat, a valve pencil slidable in said holder, said valve being provided with a flattened projection on its outer end, and a screw threaded to. said holder, said screw being slotted on one end to engage said projection and slotted on the other to receive a screw driver.

8. As' an article of manufacture, a pencil valve for gage cocks comprising a cylindrical body and a flattened slab embedded in one end, said slab being provided with a perforation through which the metal of the valve extends.

9. In a gage cock, the combination of a valve seat, a valve holder, a valve slidable in said holder and means adjustably connected with said holder for supporting said valve against end-wisey movement, said means and valve being releasably connected to rotate together.

10. In a gage cock, the combination of a fvalve housing provided with a valve seat,

a valve holder slidable in said housing toward the valve seat, means adapted to eXert a pressure upon the valve holder tending to force it in the direction of the valve seat, a valve slidable in said holder, and means adjustably engaging said holderfor imparting an axial and rotary movement to said valve.

l1. In a gage cock, the combination el a valve housing provided with a valve seat, a tubular valve holder slidable in said housing, said holder being threaded interiorly for a portion of its length, a cylindrical valve pencil slidable in said holder, said valve being provided with a projection in its outer end, a screw mounted in the threaded portion of said holder and provided with a 15 recess fitting said projection, and means whereby it may be rotated.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 16th day 20 el March A. l). '1910.

JOHN ROWLAND BROWN.

Witnesses:

J. C. PAINTER, C. V. MARKS.