US161195A - Improvement in valve-gears - Google Patents
Improvement in valve-gears Download PDFInfo
- Publication number
- US161195A US161195A US161195DA US161195A US 161195 A US161195 A US 161195A US 161195D A US161195D A US 161195DA US 161195 A US161195 A US 161195A
- Authority
- US
- United States
- Prior art keywords
- valve
- gears
- improvement
- pins
- eccentric
- 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
- 238000010276 construction Methods 0.000 description 4
- 210000000078 Claw Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
Definitions
- Figure 1 is a sectional elevation through the valve-chest of a steam-engine provided with my improvemcnts.
- Fig. 2 is a sectional plan view through the valve-chest.
- Fig. 3 is a detached view, on an enlarged scale, of the end of one of the cocentric rods.
- Fig. 4 is a perspective view of the steam-valve.
- A represents the bed-plate or frame of a steam-engine
- B the valve-chest, containing a valve of improved construction.
- 0 0 are two studs or pins, secured to the valve-rod O, or any other suitable part connecting with the valve-stein, and projecting laterally'therefrom, and p the recess, formed in the end of each eccentric rod, for the purpose of engaging with the pin 0, and provided. with inclined guide-hooks or claws p, as is usual in this class of valve-gear.
- the ends of the two eccentric rods D D are connected by a bar, Q, of double-wedge shape, as clearly shown in Fig. 1.
- This bar is arranged between the pins 0 0, so that in shifting the eccentric rods its rear side will operate on the stud 0 as a continuation of the front portions of the inclined guides p, while its front side will engage with the pin 0, and aid in moving the valve-rod to the proper position for engaging with the pin 0 in the notch of the respective eccentric rod.
- the reduced inner portion of the bar Q allows the eccentric rods to drop a certain distance in being shifted before the bar Q engages with either of the pins 0 0, whereby the eccentric rods acquire a certain momentum, which greatly assists in shifting the valve.
- 0" r are bearing pins or cylinders, arranged transversely in corresponding cavities formed on each side of the recesses p of the eccentric rods, in such manner that the pins 1" expose a portion of their surface in each recess and receive the wear of the stud 0.
- the pins 1" are held in place, as clearly shown in Fig. 3, by set-screws s,so that after they become worn, they can be readily turned in their seat and a new portion exposed to the action of the stud 0, and also be readily replaced by new ones after they are entirely worn out.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussion Or Vibration Massage (AREA)
Description
F. H. BALL.
Valve-Gear.
No. 16],]95. PatentedMarch 23,1875.
THE GRAPH) C0.PH OTO -L|TN.39 8:41 PARK PLAGE,N.Y.
UNITED STATES NwEw FRANK H. BALL, OF FOXBURG, PENNSYLVANIA, ASSIGNOR TO BRAINARD T. BALL, OF BUFFALO, NEW YORK.
IMPROVEMENT IN VALVE-GEARS.
Specification forming part of Letters Patent No. 161,195, dated March 23, 1875; application filed April 24, 1874.
To all whom it may concern: v
Be it known that I, FRANK H. BALL, of Foxburg, in the county of Olarion and State of Pennsylvania, have invented certain Improvements in Steam-Engines, of which the following is a specification:
My improvements relate to the construction of the valvegear of steam-engines, as will fully appear from the following description:
In the accompanying drawing, Figure 1 is a sectional elevation through the valve-chest of a steam-engine provided with my improvemcnts. Fig. 2 is a sectional plan view through the valve-chest. Fig. 3 is a detached view, on an enlarged scale, of the end of one of the cocentric rods. Fig. 4 is a perspective view of the steam-valve.
Like letters designate like parts in each of the figures.
A represents the bed-plate or frame of a steam-engine, and B the valve-chest, containing a valve of improved construction.
As this valve has been withdrawn from the present application, and will form the subject of a separate application, a description of the same in this specification is unnecessary.
0 0 are two studs or pins, secured to the valve-rod O, or any other suitable part connecting with the valve-stein, and projecting laterally'therefrom, and p the recess, formed in the end of each eccentric rod, for the purpose of engaging with the pin 0, and provided. with inclined guide-hooks or claws p, as is usual in this class of valve-gear. The ends of the two eccentric rods D D are connected by a bar, Q, of double-wedge shape, as clearly shown in Fig. 1.
This bar is arranged between the pins 0 0, so that in shifting the eccentric rods its rear side will operate on the stud 0 as a continuation of the front portions of the inclined guides p, while its front side will engage with the pin 0, and aid in moving the valve-rod to the proper position for engaging with the pin 0 in the notch of the respective eccentric rod. The reduced inner portion of the bar Q allows the eccentric rods to drop a certain distance in being shifted before the bar Q engages with either of the pins 0 0, whereby the eccentric rods acquire a certain momentum, which greatly assists in shifting the valve.
0" r are bearing pins or cylinders, arranged transversely in corresponding cavities formed on each side of the recesses p of the eccentric rods, in such manner that the pins 1" expose a portion of their surface in each recess and receive the wear of the stud 0. The pins 1" are held in place, as clearly shown in Fig. 3, by set-screws s,so that after they become worn, they can be readily turned in their seat and a new portion exposed to the action of the stud 0, and also be readily replaced by new ones after they are entirely worn out.
What I claim as my invention isl. The combination, with the recessed eccentric rods D D and studs 0 0, of the doublewedge-shaped bar Q, arranged between said studs and connecting the ends of the eccentric rods, substantially as and for the purpose hereinbefore set forth.
2. The combination, with the eccentric rods D D, provided with recesses p, of the bearingpins r and set-screws s, substantially as and for the purpose hereinbefore set forth.
- F. H. BALL. Witnesses:
J. J. BONNER, ERNST HODDIGK.
Publications (1)
Publication Number | Publication Date |
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US161195A true US161195A (en) | 1875-03-23 |
Family
ID=2230604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US161195D Expired - Lifetime US161195A (en) | Improvement in valve-gears |
Country Status (1)
Country | Link |
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US (1) | US161195A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080032301A1 (en) * | 2006-03-30 | 2008-02-07 | Pacific Biosciences Of California, Inc. | Articles having localized molecules disposed thereon and methods of producing same |
-
0
- US US161195D patent/US161195A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080032301A1 (en) * | 2006-03-30 | 2008-02-07 | Pacific Biosciences Of California, Inc. | Articles having localized molecules disposed thereon and methods of producing same |
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