US9792A - wells - Google Patents
wells Download PDFInfo
- Publication number
- US9792A US9792A US9792DA US9792A US 9792 A US9792 A US 9792A US 9792D A US9792D A US 9792DA US 9792 A US9792 A US 9792A
- Authority
- US
- United States
- Prior art keywords
- toes
- arm
- motion
- rock shaft
- wells
- 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
- 210000003371 Toes Anatomy 0.000 description 24
- 239000011435 rock Substances 0.000 description 16
- 230000036633 rest Effects 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G17/00—Mechanical devices for moving a member after being released; Trip or release mechanisms characterised thereby
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/11—Tripping mechanism
Definitions
- Motion is given to raise the loose toes by means of an arm permanently attached to the rock shaft, and to lower them by means of an arm having its center on an arm attached to the rock shaft, and deriving its motion from any part of the engine whose motion commences with or slightly precedes the motion of the piston rod.
- Z is the rock shaft placed in same plane as the plane of the steam and exhaust valve stems.
- 0 is an arm permanently attached to the rock shaft.
- S are two sectors supported by the same pin 7 but free to turn on it. These sectors are connected with the arm 10 by means of the right and left hand screw, 2.
Description
UNITED STATES PATENT OFFICE.
HORATIO ALLEN AND D. G. WELLS, OF NEW YORK, N. Y.
CUT-OFF FOR STEAM-ENGINES.
Specification of Letters Patent No. 9,792, dated June 21, 1853.
To all whom 2'25 may concern Be it known that we, HORATIO ALLEN and D. G. WELLS, of the city, county, and State of New York, have invented a new and useful Improvement in Expansion-Gears or Cut-Offs of Steam-Engines; and we hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making part of the specification.
Our improvements in valve gearing have resulted from our efforts to simplify the arrangement of cut off valve patented by Horatio Allen, one of the parties to the present specification, 6th Feb, 1849. In that arrangement the toes called in that patent sec.- ondary or loose toes to raise or lower the steam valves, required several shafts to carry them. WVe have been enabled to effect the desired simplicity by placing the rock shaft which carries the exhaust valve toes in the same plane with the valve stems, about midway between the upper and lower steam chests. To this rock shaft so placed, the exhaust valve toes are permanently attached and on this shaft are placed the loose toes, or secondary toes, by means of which the steam valves are operated. Motion is given to raise the loose toes by means of an arm permanently attached to the rock shaft, and to lower them by means of an arm having its center on an arm attached to the rock shaft, and deriving its motion from any part of the engine whose motion commences with or slightly precedes the motion of the piston rod.
Z) is the rock shaft placed in same plane as the plane of the steam and exhaust valve stems.
P, P, are loose toes supported by the rock shaft.
0 is an arm permanently attached to the rock shaft.
10 is an arm supported by a pin 7 fastened in the end of the arm 0.
8, S are two sectors supported by the same pin 7 but free to turn on it. These sectors are connected with the arm 10 by means of the right and left hand screw, 2.
9, 9 are pieces permanently attached to the loose toes P, P, carrying the rollers 5, 5.
The adjustment of parts is such that at the beginning of the stroke the motion of the arm 0 is in the direct-ion indicated by the arrow 1 and the roller, 5, rests on the circular surface 9, 9, of the sector 8.
To the arm 10 is given a motion nearly coincident with the motion of the piston.
The parts being supposed in motion as represented, that is, the rock shaft, in direction indicated by arrow 1 and the arm 10, in direction indicated by arrow 3, it will be seen that the toe P will be raised as long as the roller 5, rests on the circular surface 9, 9, and that as soon as the corner 11 passes the roller, the toe P, will begin to descend and be lowered down by the further motion of the sector, and the passage down of the roller 5 along the surface 12.
By turning the screw 2, the sectors will be forced apart or drawn together and thus the point at which the loose toes will be lowered and the valve returned to its seat be changed.
HORATIO ALLEN. D. Gr. WELLS.
lVitneSses:
WM. B. ALLEN, J. \V. STRATToN.
Publications (1)
Publication Number | Publication Date |
---|---|
US9792A true US9792A (en) | 1853-06-21 |
Family
ID=2070113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US9792D Expired - Lifetime US9792A (en) | wells |
Country Status (1)
Country | Link |
---|---|
US (1) | US9792A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743173A (en) * | 1971-10-26 | 1973-07-03 | Corrugated Paper Mfg Pty Ltd | Improved envelope |
-
0
- US US9792D patent/US9792A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743173A (en) * | 1971-10-26 | 1973-07-03 | Corrugated Paper Mfg Pty Ltd | Improved envelope |
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