US474557A - Engine - Google Patents
Engine Download PDFInfo
- Publication number
- US474557A US474557A US474557DA US474557A US 474557 A US474557 A US 474557A US 474557D A US474557D A US 474557DA US 474557 A US474557 A US 474557A
- Authority
- US
- United States
- Prior art keywords
- shaft
- piston
- cylinder
- nut
- engine
- 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 8
- 230000000875 corresponding Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 241000345822 Cylindera <genus> Species 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
- B24B23/043—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor reciprocatingly driven by a pneumatic or hydraulic piston
-
- 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
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
-
- 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
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18296—Cam and slide
- Y10T74/18304—Axial cam
- Y10T74/18312—Grooved
- Y10T74/18328—Alternately rotated screw
Definitions
- the object of my invention is to produce an engine in which the main or driving shaft will be caused to make one revolution for every stroke of the piston, thereby causing the shaft to rotate at double the speed that it would if the engine was of ordinary construction.
- the invention consists of a screw-threaded shaft mounted in a cylinder of ordinary construction and a nut or piston having a corresponding screwthread working upon said shaft, the nut or piston being held so that it cannot rotate, thereby imparting a rotary motion to the shaft as it (the nut) travels from one end of the cylinder to the other and a reverse rotary motion as it travels in the opposite direction, and in certain details of construction, as hereinafter fully described, and pointed out in the claims.
- Figure 1 represents a side elevation of an engine embodying my invention.
- Fig. 2 is a plan view showing the cylinder in section.
- A represents the cylinder, which may be of ordinary construction; B, the covers, which are each provided with a stuffing-box O.
- this shaft D is the shaftthat passes through the cylinder, but somewhat out of the center, as will be best seen in Fig. 1, and it is carried at each end by a bearing E.
- the central portion of this shaft D-that is, the portion within the cylinder-is of larger diameter than the ends and is formed with a screw-thread of very steep pitch. Iprefer to employ what is known as a four-threaded screw.
- the screw is of a length as shown.
- H is the main shaft of the engine, mounted in suitable bearings I. Upon this shaft is secured at fiy-wheel J, and upon one end of said shaft 11 is secured a crank K, that is connected to the crank G by rods or pitmen L L and slide M, that works in guides N. Upon the other end of the shaft H is mounted a bevelwheel P, that is in gear with a bevel-wheel Q, twice the diameter of the wheel P, said wheel Q being mounted upon a shaft R, carried in bearings S. Upon the other end of the shaft R is secured an eccentric T, that by, red U operates the slide-valve V.
- the object of having the wheel Q twice the diameter of the wheel P is that the steam admitted to the cylinderA will be cut off at the proper moment, for as the shaft H is caused to make one revolution to each stroke of the pistonFthe slidevalve V has to be reversed only at the completion of each of such revolutions.
- crank G which, .being by rod L connected to the slide M, imparts a reciprocating motion thereto and by the rod L imparts a 1'0 tary motion to the crank K, the momentum of the fly-wheel J causing the crank K to always turn in the direction in which it has been started, the shaft H, through bevel-gears P Q, shaft R, and eccentric T, operating the slide-valve, as before described.
- the screw D of such a length as to be caused to rotate once for each stroke of the piston, it might be made shorter or longer, if desired, so that the piston will cause it to make one half or one and one-half or even two revolutions, and instead of operating the slide-valve from the main shaft H by bevel-Wheels any other suitable means may be employed.
- a cylinder having a screwthreaded shaft passing through it, a nut or piston having a corresponding screw-thread, whereby said shaft is caused to oscillate as the nut or piston travels, and a crank on the end of said shaft, in combination with a main shaft, a fiy-wheel mounted thereon, and means for imparting a continuous rotary motion to said main shaft from the crank on the screwshaft, and also means for operating the slidevalve from the main shaft, as set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Description
UNITED STATES ATENT OFFICE.
JOSEPH HARRIS, OF BOSTON, MASSACHUSETTS.
ENGINE.
SPECIFICATION formingpart of Letters Patent No. 474,557, dated May 10, 1892.
Application filed October 9,1891. Serial No. 408,265. (No model.)
T0 on whom it may concern:
Be it known that I, JOSEPH HARRIS, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Engines, of which the following, taken in connection with the accompanying drawings, is a specification.
The object of my invention is to produce an engine in which the main or driving shaft will be caused to make one revolution for every stroke of the piston, thereby causing the shaft to rotate at double the speed that it would if the engine was of ordinary construction.
The invention consists of a screw-threaded shaft mounted in a cylinder of ordinary construction and a nut or piston having a corresponding screwthread working upon said shaft, the nut or piston being held so that it cannot rotate, thereby imparting a rotary motion to the shaft as it (the nut) travels from one end of the cylinder to the other and a reverse rotary motion as it travels in the opposite direction, and in certain details of construction, as hereinafter fully described, and pointed out in the claims.
Referring to the accompanying drawings, Figure 1 represents a side elevation of an engine embodying my invention. Fig. 2 is a plan view showing the cylinder in section.
A represents the cylinder, which may be of ordinary construction; B, the covers, which are each provided with a stuffing-box O.
D is the shaftthat passes through the cylinder, but somewhat out of the center, as will be best seen in Fig. 1, and it is carried at each end by a bearing E. The central portion of this shaft D-that is, the portion within the cylinder-is of larger diameter than the ends and is formed with a screw-thread of very steep pitch. Iprefer to employ what is known as a four-threaded screw.
F is a nut or piston formed with a screwthread to correspond with the thread on the shaft D. It will be seen that as the shaft D is out of the center of the cylinder the piston F cannot turn thereon; but as the piston is forced by the steam or other fluid from one end to the other of the cylinder the shaft D is caused to rotate once in one direction, (if
the screw is of a length as shown.) When the piston travels in the opposite direction, the shaft would again be rotated once, but in. the reverse direction, thus imparting an oscillating motion to the crank G on the end of the shaft D.
H is the main shaft of the engine, mounted in suitable bearings I. Upon this shaft is secured at fiy-wheel J, and upon one end of said shaft 11 is secured a crank K, that is connected to the crank G by rods or pitmen L L and slide M, that works in guides N. Upon the other end of the shaft H is mounted a bevelwheel P, that is in gear with a bevel-wheel Q, twice the diameter of the wheel P, said wheel Q being mounted upon a shaft R, carried in bearings S. Upon the other end of the shaft R is secured an eccentric T, that by, red U operates the slide-valve V. The object of having the wheel Q twice the diameter of the wheel P is that the steam admitted to the cylinderA will be cut off at the proper moment, for as the shaft H is caused to make one revolution to each stroke of the pistonFthe slidevalve V has to be reversed only at the completion of each of such revolutions.
The operation is as follows: Steam or'other fluid being admitted to one end of the cylinder A, the nut or piston F is forced to the oppositeend, and as it is mounted eccentrically upon the screw D it cannot turn in the cylinder, but forces the screw D to rotate in one direction during the travel of the nut or piston; but when steam is admitted at the other end of the cylinder the nut or piston will cause the screw to be rotated in the opposite direction. Thus an oscillating motion is given to the crank G, which, .being by rod L connected to the slide M, imparts a reciprocating motion thereto and by the rod L imparts a 1'0 tary motion to the crank K, the momentum of the fly-wheel J causing the crank K to always turn in the direction in which it has been started, the shaft H, through bevel-gears P Q, shaft R, and eccentric T, operating the slide-valve, as before described.
Although I have shown and described. the screw D of such a length as to be caused to rotate once for each stroke of the piston, it might be made shorter or longer, if desired, so that the piston will cause it to make one half or one and one-half or even two revolutions, and instead of operating the slide-valve from the main shaft H by bevel-Wheels any other suitable means may be employed.
What I claim is 1. In an engine, a cylinder having a screwthreaded shaft passing eccentrically through it and a nut or piston havinga corresponding screw-thread and free to travel upon said shaft from end to end of the cylinder, but not turn therein, substantially as set forth.
2. In an engine, a cylinder having a screwthreaded shaft passing through it, a nut or piston having a corresponding screw-thread, whereby said shaft is caused to oscillate as the nut or piston travels, and a crank on the end of said shaft, in combination with a main shaft, a fiy-wheel mounted thereon, and means for imparting a continuous rotary motion to said main shaft from the crank on the screwshaft, and also means for operating the slidevalve from the main shaft, as set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, on this 5th day of October, A. D. 1891.
JOSEPH HARRIS. Witnesses:
GEORGE DENNISON, EDWIN PLANTA.
Publications (1)
Publication Number | Publication Date |
---|---|
US474557A true US474557A (en) | 1892-05-10 |
Family
ID=2543415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US474557D Expired - Lifetime US474557A (en) | Engine |
Country Status (1)
Country | Link |
---|---|
US (1) | US474557A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2955579A (en) * | 1959-09-04 | 1960-10-11 | Bachan Mfg Company | Fluid actuator for linear and rotary movements |
US3105162A (en) * | 1959-06-29 | 1963-09-24 | Donald E Stevenson | Electromagnet motor with crankshaft drive |
-
0
- US US474557D patent/US474557A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3105162A (en) * | 1959-06-29 | 1963-09-24 | Donald E Stevenson | Electromagnet motor with crankshaft drive |
US2955579A (en) * | 1959-09-04 | 1960-10-11 | Bachan Mfg Company | Fluid actuator for linear and rotary movements |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US766410A (en) | Motor. | |
US852033A (en) | Motor. | |
US474557A (en) | Engine | |
US3277743A (en) | Crankshaft with floating crank throws | |
US344593A (en) | Steam-engine | |
US595732A (en) | Mechanical movement | |
US1195665A (en) | Power mechanism | |
US630229A (en) | Engine. | |
US1191230A (en) | Variable-eccentric mechanism. | |
US952383A (en) | Mechanical movement. | |
US42336A (en) | Improvement in propeller-engines | |
US617529A (en) | Motive engine | |
US879289A (en) | Means for converting reciprocatory motion into rotary motion. | |
US763133A (en) | Motor-engine. | |
US264511A (en) | Device for converting motion | |
US423120A (en) | Island | |
US1317917A (en) | Mechanical movement | |
US463758A (en) | Steam-engine | |
US298081A (en) | Steam-engine | |
US555465A (en) | Steam-engine | |
US660679A (en) | Balancing engine or motor. | |
US2872A (en) | Improvement in the steam-engine | |
US1054350A (en) | Substitute for cranks. | |
US880627A (en) | Drive-gear for engines. | |
US248096A (en) | Steam-engine |