Connect public, paid and private patent data with Google Patents Public Datasets

Valve-actuating mechanism for gas-engines.

Download PDF

Info

Publication number
US951965A
US951965A US1909524931A US951965A US 951965 A US951965 A US 951965A US 1909524931 A US1909524931 A US 1909524931A US 951965 A US951965 A US 951965A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
cam
valve
mechanism
wheels
gas
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
Application number
Inventor
Valda W Potter
Original Assignee
Valda W Potter
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.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/04Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047Camshafts

Description

V. W. POTTER. VALVE AUTUATING MECHANISM FOR GAS ENGINES. I APPLICATION FILED OUT. 27, 1969. 95 1 ,9 5, I Patented Mar. 15, 1910.

2 SHEETS-SHEET 1.

w s F) *S' WITNESSES IIVVE/VTOH l/A LDR W F0 7725' ANDREW a, GRAHAM c0 PHOTO-LITHOGRAPHEIKS. wnsmnmon, n, g

V. W. POTTER. VALVE ACTUATING MECHANISM FOR GAS ENGINES.

AIPLIGATION FILED OUT, 27, 1909.

Patented Mar. 15, 1910.

2 SHEETS-SHEET 2.

WITNESSES ENIIED STA'I% PATENT @FFICE.

VALDA W. POTTER, 0F OELWEIN, IOWA.

VALVE-ACTUATING MECHANISM FOR GAS-ENGINES.

To all whom it may concern:

Be it known that I, VALDA W. POTTER, a citizen of the United States, residing at Oelwein, in the county of Fayette and State of Iowa, have invented certain new and useful Improvements in Valve-Actuating Mechanism for Gas-Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates, generally, to gasengines and, more particularly, to a novel form of Valve-actuating mechanism therefor. a

The object of the invention is, primarily, to provide a novel form of valve-actuating mechanism, which, while being extremely simple in construction, shall be reliable and positive in its action.

Other subsidiary objects of improvement will appear as the specification proceeds and the nature of the invention more fully appears.

In the accompanying drawings, forming part of my application for patent, and in which like letters of reference indicate corresponding parts, I have, for illustrative purposes, shown my improvements as embodied in a gas-engine; but it will be understood, of course, that I do not confine my invention to such use, as my improvements are equally applicable for use in connection with forms of engines, other than gas-engines.

In the drawings: Figure 1 is a side elevation of a gas-engine embodying my improvements; Fig. 2 is a bottom plan view, certain parts being shown in sectlon; Fig. 3 is an end view; Fig. 4c is a detached detail view of one of the levers; and Fig. 5 is a detached detail view of the duplicate cam-wheels.

Referring, now, in detail to the drawings: A designates the frame or supporting-base of the gas-engine; and b, b designate the valvestems, movement of which is controlled by my valve-operating mechanism, now to be described.

Carried by the main shaft G of the engine is a broad-faced pinion 0, in mesh with, and driving in unison, duplicate cam-wheels (Z, cl, revolubly mounted on a shaft D projecting from the frame A. Each cam-wheel a is provided with circumferential gear-teeth and one face of each wheel is recessed, as at (F, and provided with a cam d The relative position of these cam-wheels on the Specification of Letters Patent.

Application filed October 27, 1909.

Patented Mar. 15, 1910.

Serial No. 524,931.

shaft D is back to back, as shown in Figs. 8 and 5. The cam-wheels (Z are exact duplicates of each other in every respect. Pivotally supported at their lower ends on a shaft E projecting from the frame A are duplicate levers 6, each preferably provlded with a hub-portion e at its lower end, and carrying at its upper end a roller 6 working against the circular rim or edgewall d of the recessed portion d of the camwheel (Z; the rollers, at the proper time in the rotation of the cam-wheels, being engaged by the cams (Z d to rock the levers e, 6. Links 1, j are each pivotally secured, at one end, to the corresponding lever e and, at the other end, to the shortest arm 9 of a lever 9, having an offset 9 in the nature of a collar loosely embracing a shaft h carried by a casting or standard I-I secured to the under side of the piston-chamber I. Each lever g carries, also, an arm 9 which is, at one end, formed as a collar g loosely embracing the shaft h and, at the other end, 9 loosely engages the valve-stem b. Each valve-stem b is provided with a spring Z), which serves to hold the valves in their seats, and the cam-rollers 6 against the rim (Z and against the cams CZJ, as is obvious.

It is believed that the operation of the valve-actuating mechanism will be apparent; but, briefly stated, it is as follows: Ro tation of pinion c revolves the cam-wheels (Z, (Z in unison, the rollers 0 e traveling around the rims (Z6 of the recessed portions 6Z3, (Z until they are engaged by the cams al 614, when the levers c are swung backward 011 their pivots E, thus drawing rearward the links f, f and rocking the levers g, g on their pivot h and consequently rocking the arms 9 g of said levers to actuate the valves.

It is often necessary, in stationary gasengines, especially those for farmers use, for the engineer to reverse his engine; hence the purpose of the duplicate cam-wheels (Z, (Z is to enable the operator to change the direction of his engine. This is accomplished by loosening the set-screw c securing the levers c, e to the shaft E, slipping the front lever c outward, and then slipping the frontor back cam-wheel (Z out of mesh with the pinion c and turning said cam-wheel to set itback or forward say four cogs or more teeth, and, in this position. slipping said wheel into mesh again with the pinion c and tightening up the set-screw c. This, as is obvious, changes the former relative positions of the cams d", (Z causing the explosion to take place either on the down-, or the up-stroke of the crank.

The construction of the device is susceptible of modification in detail, without sacriticing the advantages or affecting the spirit of the invention; and all such modifications and changes as come within the scope of the appended claim, constitute no departure from the invention, herein described, illustrated, and claimed.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters-Patent is:

In a gas-engine having two valves, a valveactuating mechanism therefor, comprising a broad-faced pinion, independent, duplicate gear-wheels meshing with, and driven in unison by, said pinion, and positioned back to back and each having a cam, mechanism intermediate said gear-wheels and said valves and intermittently engaged and moved by said cams, to actuate said valves, and means permitting disengagement of one of said gear-wheels from mesh with said pinion, for changing the relative position of said cams.

In testimony whereof, I aflix my signature, in the presence of two subscribing witnesses.

VALDA WV. POTTER.

Witnesses V. G. VALRA'IH, J. V. KINT.

US951965A 1909-10-27 1909-10-27 Valve-actuating mechanism for gas-engines. Expired - Lifetime US951965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US951965A US951965A (en) 1909-10-27 1909-10-27 Valve-actuating mechanism for gas-engines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US951965A US951965A (en) 1909-10-27 1909-10-27 Valve-actuating mechanism for gas-engines.

Publications (1)

Publication Number Publication Date
US951965A true US951965A (en) 1910-03-15

Family

ID=3020375

Family Applications (1)

Application Number Title Priority Date Filing Date
US951965A Expired - Lifetime US951965A (en) 1909-10-27 1909-10-27 Valve-actuating mechanism for gas-engines.

Country Status (1)

Country Link
US (1) US951965A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276324B1 (en) 1999-04-08 2001-08-21 Tecumseh Products Company Overhead ring cam engine with angled split housing
US6279522B1 (en) 1999-03-19 2001-08-28 Tecumseh Products Company Drive train for overhead cam engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279522B1 (en) 1999-03-19 2001-08-28 Tecumseh Products Company Drive train for overhead cam engine
US6276324B1 (en) 1999-04-08 2001-08-21 Tecumseh Products Company Overhead ring cam engine with angled split housing

Similar Documents

Publication Publication Date Title
US3394683A (en) Opposed piston engine
US710756A (en) Rotary engine.
US3888216A (en) System for the control of the intake and exhaust valves of internal combustion engines
US1299264A (en) Explosion-engine.
US1282180A (en) Engine.
US1215993A (en) Explosive-engine.
US1148478A (en) Engine-gearing.
US926564A (en) Internal-combustion engine.
US1358186A (en) Timing mechanism
US994359A (en) Driving and brake mechanism for velocipedes.
US1405093A (en) Internal-combustion engine
US1271569A (en) Internal-combustion engine.
US2779321A (en) Camshaft drive for high speed internal combustion engines
US871602A (en) Mechanism for changing a four-stroke cycle-motor into a two-stroke cycle-motor.
US773401A (en) Rotary steam-engine.
EP2322771A1 (en) Variable valve operating system for internal combustion engine
US1501459A (en) Engine
US1220124A (en) Internal-combustion engine.
US1379774A (en) Reversing mechanism
US1202741A (en) Internal-combustion engine.
US1408781A (en) Valve gear for internal-combustion engines
US1917274A (en) Crankless engine
US683688A (en) Steam-engine.
US213553A (en) Improvement in cam mechanisms for changing the throw of a lever and connecting-rod
US1079741A (en) Internal-combustion engine.