US692289A - Valve-gear for engines. - Google Patents

Valve-gear for engines. Download PDF

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Publication number
US692289A
US692289A US5498201A US1901054982A US692289A US 692289 A US692289 A US 692289A US 5498201 A US5498201 A US 5498201A US 1901054982 A US1901054982 A US 1901054982A US 692289 A US692289 A US 692289A
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United States
Prior art keywords
pin
valve
crank
cam
axis
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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
Application number
US5498201A
Inventor
Fred Dean Holdsworth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sullivan Machinery Co
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Sullivan Machinery Co
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Sullivan Machinery Co filed Critical Sullivan Machinery Co
Priority to US5498201A priority Critical patent/US692289A/en
Application granted granted Critical
Publication of US692289A publication Critical patent/US692289A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F16H—GEARING
    • F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
    • F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
    • F16H53/04—Adjustable cams
    • 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
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • Nrrnt STATES PATENT OFFIcE.
  • My invention relates to a valve-gear for engines, fluid-compressors, and similar devices, and more particularly to mechanism for operating said valves, which is adapted to be attached to the crank-pin of the engine or compressor.
  • Figure l is a front view of my improved mechanism.
  • Fig. 2 is ahorizontal section through the same, and
  • Fig. 3 is a similar section through the same and the crank.
  • crank-shaft of the engine or compressor 2 the crank secured to said shaft, and 3 the crank-pin, all of which may be of the ordinary construction.
  • the 4 represents a plate which is provided with a suitable cam groove 5 on the front face thereof and with an arm 6, which extends from one side of the plate, and is provided with a hole 7, which takes over the end of the crank-pin 3 and which is suitably secured thereto, so as not to rotate thereupon, by any suitable meanssuch, for instance, as the key 8.
  • the distance between the center of the hole 7 and the axis of the cam-groove 5 is equal to the throw of the crank 2, and the key 8 is so located with reference to the plate 4: and pin 3 that the axis of the cam-groove 5 and the axis of the crank-shaft 1 are coincident.
  • a pin or stud secured to the plate 4 with its axis coincident with the axis of the camgroove 5.
  • the block 10 mounted on this pin, so as to be freely rotatable thereon, is the block 10, said block being located in an oblong slot or opening 11 in the end of the link 12, which is connected in any suitable manner with the valve or valves to be moved.
  • the slot 11 in the link 12 fits the sides of the block 10 in one direction; but it is of sufficient length in the other direction to allow a longitudinal movement of the link equal to the throw of the cam-groove 5.
  • Said link 12 is provided with a stud 13, carrying a small antifriction-roller 14., which projects into the cam-groove 5.
  • the operation of the mechanism is as follows: As the crankshaft 1 revolves it carries the plate 4 with it, and as the axis of the pin 9 is coincident with the axis of the shaft 1 the said pin has merely a motion of rotation given to it by the revolving plate 4, so that said pin is in effect an extension or continuation of the crank-shaft 1.
  • the plate 4, however, revolves about this pin 9, and the cam-groove 5 therein bearing upon the roller 14 will give to the link 12 a longitudinal motion corresponding to the contour of said cam-groove, which longitudinal movement is transmitted to the valve or valves to be moved.
  • the pin 9 and block 10 serve as a support and guide, respectively, for the end of the link 12, and as the pin is coincident with the axis of the crank-shaft the link 12 will be reciprocated in a right line and cannot vibrate or oscillate.
  • valve-gear for engines, and the like, the combination with a crank shaft and pin, of a cam secured to the crank-pin with its axis coincident with the axis of the crankshaft, a valve-operating link actuated by said cam and means on the cam for guiding the link in a right line.
  • valve-gear for engines, and the like, the combination with a crank shaft and pin, of a cam secured to the crank-pin with its axis coincident with the axis of the crank shaft, a valve-operating link, a pin coincident with the axis of the cam, a block on said pin and engaging a slot in the link, and a projection on the link engaging the cam.

Description

No. -s92,2'a9.- Patented Fab. 4, 1902 F. n. HOLDSWOBTH. VALVE GEAR FOR ENGINES.
(Application filed Apr. 9, 1901.)
(No Model.)
Ft .2. 7 5/ .7 I
in I 6 l W Witfiesacs Inventor /a-.lz-%w d6?! I a r in: warm: vcrens o0 PNOTOLITNEL, WASHINGTON, u
Nrrnt) STATES PATENT OFFIcE.
FRED DEAN IIOLDSl/VORTH, OF OLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO SULLIVAN MACHINERY 00., OF OLAREMONRNEW HAMPSHIRE, AND CHICAGO, ILLINOIS, A CORPORATION OF NEW HAMPSHIRE.
VALVE-G EAR FOR ENGINES.
SPECIFIGATION forming part of Letters Patent No. 692,289, dated February 4, 1902.
Application filed April 9, 1901,
To all whont it may concern;
Be it known that I, FRED DEAN HOLDS- WORTH, a resident of Olaremont, in the county of Sullivan and State of New Hampshire, have invented a new and useful Improvement in Valve-Gear for Engines; and I do hereby declare the following to be a full, clear, and exact description thereof.
My invention relates to a valve-gear for engines, fluid-compressors, and similar devices, and more particularly to mechanism for operating said valves, which is adapted to be attached to the crank-pin of the engine or compressor.
In the accompanying drawings, Figure l is a front view of my improved mechanism. Fig. 2 is ahorizontal section through the same, and Fig. 3 is a similar section through the same and the crank.
1 represents the crank-shaft of the engine or compressor, 2 the crank secured to said shaft, and 3 the crank-pin, all of which may be of the ordinary construction.
4: represents a plate which is provided with a suitable cam groove 5 on the front face thereof and with an arm 6, which extends from one side of the plate, and is provided with a hole 7, which takes over the end of the crank-pin 3 and which is suitably secured thereto, so as not to rotate thereupon, by any suitable meanssuch, for instance, as the key 8. The distance between the center of the hole 7 and the axis of the cam-groove 5 is equal to the throw of the crank 2, and the key 8 is so located with reference to the plate 4: and pin 3 that the axis of the cam-groove 5 and the axis of the crank-shaft 1 are coincident.
9 is a pin or stud secured to the plate 4 with its axis coincident with the axis of the camgroove 5. Mounted on this pin, so as to be freely rotatable thereon, is the block 10, said block being located in an oblong slot or opening 11 in the end of the link 12, which is connected in any suitable manner with the valve or valves to be moved. The slot 11 in the link 12 fits the sides of the block 10 in one direction; but it is of sufficient length in the other direction to allow a longitudinal movement of the link equal to the throw of the cam-groove 5. Said link 12 is provided with a stud 13, carrying a small antifriction-roller 14., which projects into the cam-groove 5.
The operation of the mechanism is as follows: As the crankshaft 1 revolves it carries the plate 4 with it, and as the axis of the pin 9 is coincident with the axis of the shaft 1 the said pin has merely a motion of rotation given to it by the revolving plate 4, so that said pin is in effect an extension or continuation of the crank-shaft 1. The plate 4, however, revolves about this pin 9, and the cam-groove 5 therein bearing upon the roller 14 will give to the link 12 a longitudinal motion corresponding to the contour of said cam-groove, which longitudinal movement is transmitted to the valve or valves to be moved. The pin 9 and block 10 serve as a support and guide, respectively, for the end of the link 12, and as the pin is coincident with the axis of the crank-shaft the link 12 will be reciprocated in a right line and cannot vibrate or oscillate.
What I claim as my invention, and desire to secure by Letters Patent, is-'- 1. In valve-gear for engines, and the like, the combination with a crank shaft and pin, of a cam secured to the crank-pin with its axis coincident with the axis of the crankshaft, a valve-operating link actuated by said cam and means on the cam for guiding the link in a right line.
2. In valve-gear for engines, and the like,
the combination with a crank shaft and pin, 7
of a cam secured to the crank pin with its axis coincident with the axis of the crankshaft, a valve-operating link, a pin coincident with the axis of the cam for guiding the link, and a projection on the link engaging the cam.
3. In valve-gear for engines, and the like, the combination with a crank shaft and pin, of a cam secured to the crank-pin with its axis coincident with the axis of the crank shaft, a valve-operating link, a pin coincident with the axis of the cam, a block on said pin and engaging a slot in the link, and a projection on the link engaging the cam.
In testimony whereof I, the said FRED DEAN HOLDSWORTH, have hereunto set my hand.
F. H. Fos'rnn, GEO. O. WARNER.
US5498201A 1901-04-09 1901-04-09 Valve-gear for engines. Expired - Lifetime US692289A (en)

Priority Applications (1)

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US5498201A US692289A (en) 1901-04-09 1901-04-09 Valve-gear for engines.

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Application Number Priority Date Filing Date Title
US5498201A US692289A (en) 1901-04-09 1901-04-09 Valve-gear for engines.

Publications (1)

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US692289A true US692289A (en) 1902-02-04

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