US100612A - James fitzgerald - Google Patents
James fitzgerald Download PDFInfo
- Publication number
- US100612A US100612A US100612DA US100612A US 100612 A US100612 A US 100612A US 100612D A US100612D A US 100612DA US 100612 A US100612 A US 100612A
- Authority
- US
- United States
- Prior art keywords
- valve
- fitzgerald
- james
- slide
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000036633 rest Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000003292 diminished Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
- F16K3/188—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of hydraulic forces
Definitions
- ⁇ Figure 2 is a top or plan view.
- A is the steam-chest.
- B is the slide-valve.
- C is a piston in the back of the slide-valve.
- D represents a rail, on one edge of which there is a .cogged rack, E.
- F F represent rolls, upon one end of which are pinl ions G Gr, which engage with the rack E, as seen ⁇ in the drawing.
- the other ends of the rolls are flanged and serve to guide the rolls on the rail.
- the rail D rests on the lugs H H.
- I is a plate which rests on therolls.
- J is the piston-rod, which passes up through the rail D, which rail is'slotted, as seen at D', so that the rod may move back and forth with the valve.
- the rod passes up through the plate I and the piston is suspended therefrom by means of the pin K,
- the pressure of the steam upon the slide-valves is diminished in proportion to the area of the'piston.
- the pressure on the piston is supported by the rollers which traverse freely back and forth on the bearingrail D.
- the rack and pinious serve tomaintaiu the rollers in proper position.
- The' piston is designed to work steam tight/in the valve, the lower side of it receiving the pressure of the exhaust at every stroke of the engine.
- the movement of the piston in the valve is of course very slight, it being only suilicient to compensate for the slight wear of the valve and of the rollers.v
Description
JAMES l FITZGERALD, OE BROOKLYN, NEW YORK.
Leners PatemN. 100,612, dated Mam 8,1870.
`BALANCZE! SLIDE-VALVE.
(The Schedule referred to in these Letters Patent and making part of the same.
l'o all whom it may concern:
Be it known that I, J AMES FITZGERALD, of Brooklyn, inthe county of Kings, and State of New York, have invented anew and useful Improvement in Balanced Slide-Valve; and I do hereby declare that the following is a full, clear, and exact description thereof',
which will enable others skilled inthe art to make and use the same, reference being had to the accompanying` drawing forming part o f this specification.
This invention rela-tes to a new andl useful improve- .ment in mode of operating the slide-valves of steamengines, whereby the same are balanced or nearly balanced; and 1 y e It consists in the construction and arrangement hereinafter described. f "In the accompanying drawing- Figure 1 represents a vertical section of the arrangement through the line a: a: of iig. 2.
`Figure 2 is a top or plan view. l
Similar letters of reference indicate corresponding parts,
A is the steam-chest.
B is the slide-valve.
C is a piston in the back of the slide-valve.
D represents a rail, on one edge of which there is a .cogged rack, E.
F F represent rolls, upon one end of which are pinl ions G Gr, which engage with the rack E, as seen` in the drawing. The other ends of the rolls are flanged and serve to guide the rolls on the rail.
The rail D rests on the lugs H H.
I is a plate which rests on therolls.
J is the piston-rod, which passes up through the rail D, which rail is'slotted, as seen at D', so that the rod may move back and forth with the valve.
The rod passes up through the plate I and the piston is suspended therefrom by means of the pin K,
which passes through a hole in thetopof the rod.
The pressure of the steam upon the slide-valves is diminished in proportion to the area of the'piston.
The pressure on the piston is supported by the rollers which traverse freely back and forth on the bearingrail D. The rack and pinious serve tomaintaiu the rollers in proper position.
It will be seen that the slide-valve is left entirely free, with sufficient pressure upon itto keep it fairly on its seat.
The' piston is designed to work steam tight/in the valve, the lower side of it receiving the pressure of the exhaust at every stroke of the engine. The movement of the piston in the valve is of course very slight, it being only suilicient to compensate for the slight wear of the valve and of the rollers.v
Having thus described my invention,
' I claim as newfand desire to secure by Letters Patent- In combination with a slide-valve, the pistou C, rail D, rollers F F, with the rack E, pinions G, and plate I, arranged to operate substantially as and for the purposes herein shown and described.
AThe above specific-ation of my invention signed by me this 12th day of November, 1869. v
JAMES FITZGERALD.` lVitnesses:
GEO. W; MABEE, ALEX. F. ROBERTS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US100612A true US100612A (en) | 1870-03-08 |
Family
ID=2170076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US100612D Expired - Lifetime US100612A (en) | James fitzgerald |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US100612A (en) |
-
0
- US US100612D patent/US100612A/en not_active Expired - Lifetime
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