US54026A - And john m - Google Patents
And john m Download PDFInfo
- Publication number
- US54026A US54026A US54026DA US54026A US 54026 A US54026 A US 54026A US 54026D A US54026D A US 54026DA US 54026 A US54026 A US 54026A
- Authority
- US
- United States
- Prior art keywords
- link
- slide
- rod
- cam
- steam
- 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
- 241000735495 Erica <angiosperm> Species 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000001105 regulatory Effects 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
- 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
- This invention relates to a new and im proved variable cut-off, which is intended more particularly for engines in which the steam is let into and ont ofthe steam-cylinders by means of puppet-valves, which are operated by levers and lifting-toes.
- the invention is, however, applicable to slide-valve engines, for letting steam into and out of the chest containing the slidevalve by a puppet-valve,which is seated when the piston has made part of its stroke.
- the object of our invention is to so construct a cut-off motion that it can he applied to a common engine with a very tritling change, and can be handled with great facility without stopping the engine.
- A represents the steamchambers, which m ay be arranged and applied to a steam cylinder in any suitable manner.
- B is a rockshaft carrying two lifters, a a, which operate upon the levers of the exhausting and receiving valves; and b is a crank which is connected to one end of the rock-shaft B, and which is con! nected to a vibrating link, O, by means of a rod, c, as shown in the drawings.
- This link C is pivoted to a slide, D, at its lower end, and connected to an ecentric, E, by means of a rod, c, and a yoke, F.
- rIlhe slide D receives a reciprocating motion at suitable times from a cam, G, by means of a connecting-rod, f, and a yoke, G. rIhe yokes, and also the connecting-rods and slide, work in suitable guides arranged in any convenient manner.
- the link (l is slotted to receive an adjustable wrist-pin, It, which can be moved nearer to or farther from the point of connection of the link with the slide, according to the amount of cut-rissaquired, and the rod @,which connects this link O with the yoke F of the eccentric, has an elongated hook, c', which allows of a slip ot' rod c at certain times in the forward and backward strokes of the slide D.
- the slip in the hook c equals twice the difference of the eccentricity of the eccentric and fullstroke cam.
- the exhaust-valves are worked by a rod connecting in a suitable manner with the fullstroke cam yoke, which gives motion to the lower end of the link. rIhe receiving-valves, which are operated as above described, always make the same rise in the same time, the variation bein gin the time occupied in seating them.
- the wrist-pin h upon which the hook e works, may be made stationary, and the wrist-pin, upon which the rod c works, may be made adjustable, the slot in the link C being curved in an opposite direction to that shown in the drawings.
- the amount of lead or cutoft' in both cases will be regulated by moving the wrist-pin nearer to or farther from the center of motion of the link.
- the variation in the closing of the valves can be made in a moment, and without stopping the engine, and if desirable this variation may be effected automatically by employing a governor for raising and lowering the hooked end ofthe rod e.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
UNITEV rares erica.
Artnr AUSTIN SEELY, OF ALION, ILLINOIS, AND JOHN M. OABBELIJ, OF KEOKUK, IOWA;
IMPROVEMENT IN VALVEJGEARS.
Specification forming part of Letters Patent No. 54,026, dated A'pril17, 1866.
To all whom t may concern:
Be it known that we, AUsrIN SEELY, of Alton, in' the county of Madison and State of Illinois, and JOHN M. OABBELL, of Keokuk, in the county of Lee and State of Iowa, have invented a new and Improved Variable Out- Off for Puppet-Valve Steam-Engines; and we do hereby declare that the following is a full, clear, and exact description thereof7 reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a side view of the improved cutof motion. Fig. 2 is a similar view, showing the several parts in different positions. Fig. 3 is a top view of the cut-off motion.
Similar letters of reference indicate corresponding parts in the three figures.
This invention relates to a new and im proved variable cut-off, which is intended more particularly for engines in which the steam is let into and ont ofthe steam-cylinders by means of puppet-valves, which are operated by levers and lifting-toes. The invention is, however, applicable to slide-valve engines, for letting steam into and out of the chest containing the slidevalve by a puppet-valve,which is seated when the piston has made part of its stroke.
The object of our invention is to so construct a cut-off motion that it can he applied to a common engine with a very tritling change, and can be handled with great facility without stopping the engine.
To enable others skilled in the art to understand our invention, we will describe its construction and operation.
In the accompanying drawings we have represented our improved cut-off applied to a common puppet valve engine for operatin g upon the puppet-valves which let steam into and out of the steam cylinder. There the improved cut-offis applied to a slide-valve engine the puppet-valves will be arranged so as to let steam into and out of the steam-chest containing the slide-valve, according to any desired lead of this valve.
A represents the steamchambers, which m ay be arranged and applied to a steam cylinder in any suitable manner. B is a rockshaft carrying two lifters, a a, which operate upon the levers of the exhausting and receiving valves; and b is a crank which is connected to one end of the rock-shaft B, and which is con! nected to a vibrating link, O, by means of a rod, c, as shown in the drawings. This link C is pivoted to a slide, D, at its lower end, and connected to an ecentric, E, by means of a rod, c, and a yoke, F. rIlhe slide D receives a reciprocating motion at suitable times from a cam, G, by means of a connecting-rod, f, and a yoke, G. rIhe yokes, and also the connecting-rods and slide, work in suitable guides arranged in any convenient manner.
The link (l is slotted to receive an adjustable wrist-pin, It, which can be moved nearer to or farther from the point of connection of the link with the slide, according to the amount of cut-offrequired, and the rod @,which connects this link O with the yoke F of the eccentric, has an elongated hook, c', which allows of a slip ot' rod c at certain times in the forward and backward strokes of the slide D. The slip in the hook c equals twice the difference of the eccentricity of the eccentric and fullstroke cam. i
It will be seen that the cam and eccentric are applied to their main shaft J in such a manner that they make their throws together. As both the cam and the eccentric impel their yokes forward the slide D will be moved for a short distance unt-il the wrist-pin on the link O is brought against the back of the hook c', as shown in Fig. l, when the eccentric and cam will both operate to move the link G and lift the receiving-valve. As the ecentric and cam commence the return strokes ofthe yokes the link O will slip until the forward part of the hook c is brought in contact with the wrist-pin h, when the slide and link will both be moved together and the valves will again be lifted, as shown in Fig. 2.
The exhaust-valves are worked by a rod connecting in a suitable manner with the fullstroke cam yoke, which gives motion to the lower end of the link. rIhe receiving-valves, which are operated as above described, always make the same rise in the same time, the variation bein gin the time occupied in seating them.
We can use a cam to do the work of the eccentric, but prefer to employ the latter, as it will operate smoother and more positively.
If desirable, the wrist-pin h, upon which the hook e works, may be made stationary, and the wrist-pin, upon which the rod c works, may be made adjustable, the slot in the link C being curved in an opposite direction to that shown in the drawings. The amount of lead or cutoft' in both cases will be regulated by moving the wrist-pin nearer to or farther from the center of motion of the link.
For an engine that runs but one way-that is to say, an engine that requires no reversingthe full-stroke cam can be dispensed with and the work all done by the eccentric alone. In this case a rod is connected from p to 1", having the same slip or lost motion as described for the rod e.
By our invention the variation in the closing of the valves can be made in a moment, and without stopping the engine, and if desirable this variation may be effected automatically by employing a governor for raising and lowering the hooked end ofthe rod e.
AUSTIN SEELY. JOHN M. GABBELL.
Witnesses:
JAMES H. McCoRD, ALEX. C. DURDY.
Publications (1)
Publication Number | Publication Date |
---|---|
US54026A true US54026A (en) | 1866-04-17 |
Family
ID=2123570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US54026D Expired - Lifetime US54026A (en) | And john m |
Country Status (1)
Country | Link |
---|---|
US (1) | US54026A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040070616A1 (en) * | 2002-06-02 | 2004-04-15 | Hildebrandt Peter W. | Electronic whiteboard |
EP2039770A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants |
EP2039771A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants |
EP2039772A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants introduction |
-
0
- US US54026D patent/US54026A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040070616A1 (en) * | 2002-06-02 | 2004-04-15 | Hildebrandt Peter W. | Electronic whiteboard |
EP2039770A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants |
EP2039771A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants |
EP2039772A2 (en) | 2009-01-06 | 2009-03-25 | Bayer CropScience AG | Method for improved utilization of the production potential of transgenic plants introduction |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US54026A (en) | And john m | |
US37302A (en) | Improvement in trunk-engines | |
US78518A (en) | Improvement in valves foe | |
US45663A (en) | Improvement in valve-gear of steam-engines | |
US657816A (en) | Valve-gear for locomotive-engines. | |
US30923A (en) | Valve-gear fob | |
US386284A (en) | baily | |
US790358A (en) | Steam-engine. | |
US197951A (en) | Improvement in valve-motions for steam-engines | |
US38610A (en) | Improvement in cut-off and regulator valves | |
US276773A (en) | Valve-gear for steam-engines | |
US84761A (en) | Hugh reid | |
US119590A (en) | Improvement in valve-gears | |
US33477A (en) | Improved cut-off for oscillating engines | |
US146487A (en) | Improvement in cut-off valves and link-motions | |
US844521A (en) | Valve-gear. | |
US43757A (en) | Improved valve-gear for steam-engines | |
US349898A (en) | pendleton | |
US213534A (en) | Improvement in cut-offs for steam-engines | |
US33821A (en) | Improved cut-off valve for steam-engines | |
US114601A (en) | Improvement in adjustable cut-offs for steam-engines | |
USRE4874E (en) | Improvement in steam-pumps | |
US106886A (en) | Improvement in cornish engines | |
US346658A (en) | Half to samuel g | |
US297656A (en) | ambos |