US1243163A - Mechanical motor. - Google Patents

Description

L-A. GYGAR.

MECHANICAL MOTOR.

APPLICATION nun SEPT- m,

ISIS.

Patented Oct. 16,1917.

2 SHEETSSHEET l J. A. GYGAR.

MECHANICAL MOTOR.

APPLICATION FILED SEPT.

Patentefl 00. 16,1917.

2 SHEETS-SHEET'Z.

JOSEPH ANDREW GYGAR, OF BRISBANE, QUEENSLAND, AUSTRALIA.

MECHANICAL MOTOR.

Specification of Letters Patent.

Patented Oct. 16, 1917..

Application filed September 14, 1915. Serial No. 50,562.

To all whom it may concern:

Be it known that I, J OSEPI-I ANDREW GYGAR, a subject of the King of the United Kingdom of Great Britain and Ireland, residing at Brisbane, in the State of Queensland, Commonwealth of Australia, have invented certain new and useful Improvements in Mechanical Motors; and do hereby declare the following to be a full, clear, and exact description. of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

This invention relates to improvements in mechanical motors applicable to be driven by gas, steam or compressed air.

The objects of the invention are to obtain instantaneous expansion and to maintain the full energy of the force employed at the maximum leverage during the complete travel of the piston.

The invention consists of a revolving cylinder or drum mounted upon a shaft: the cylinder or drum is provided with a circular pathway in which is fitted an anvil abutment containing necessary valves for the admission and exhaust of the steam, gas or compressed air used for the motive power.

A semi-circular piston, or a piston connected by a curved arm to a crosshead travels in and around the circular path from one side of the anvil abutment to the other: the circular path is constructed concentrically with the shaft.

A slotted lever fulcrumed upon a vibrating lever suitably supported, is pivotally connected to the rotary cylinder and to the crosshead; this lever controls the travel of the piston and imparts motion to the cylinder.

On the main shaft is a cam, crank, or eccentric engaging with the top of a vibrating lever rocking in a suitable bearing on the base plate of the motor.

To fully describe the invention, reference is now made to the drawings in which Figure 1, is a transverse front elevation of the motor.

Fig. 2, transverse view of cylinder or drum with cover removed.

Fig. 3, transverse back elevation of cylinder or drum.

Fig. 4:, longitudinal side elevation of motor partly in section.

The reference numerals indicate like parts in all figures.

(1) is a cylinder or drum constructed with one solid end and provided with a cylinder cover (6) at its open end, in which is a slot (7). This cylinder is keyed to a shaft (2) revolving in pedestal bearing (12) is a vibrating lever keyed upon a spindle (13) rocking in fulcrum bearing (14), pivotally connected to the top end of this lever by a center pin (17) is a vibrating lever (16) solid in the center and slotted at each end, it is connected to the cylinder cover (6) by a pin (18) secured thereto and to the crosshead (11) by a pin (19) secured thereto; the pin (17) does not move in the lever (16) but the latter rotates upon the pin. The extent of the angular movement of vibrating lever (12) is limited, as the center line of same never passes center line of shaft (2).

(9) is the piston and (10) a connecting arm to a crosshead (11), both the piston and the crosshead traveling in and around the circular path of the cylinder.

(8) is an anvil abutment fixed in the circular path in which are fitted necessary valves for controlling the propelling force,

but which are not shown in the drawings being outside of the scope of the present invention.

(4:) is a crank, cam or eccentric integral with the shaft (2) or fastened thereto by any method permitting the adjustment of angle of throw thereof, which engages with the top of a vibrating lever (15) keyed to the spindle (13) of the fulcrum. bearing (14:).

(5) is a space of suitable dimensions for fastening to the shaft (2), necessary mechafiism for operating the valves of the cylin- All four figures of the drawings show the relative positions of the various parts at the moment of the impelling force entering the motor.

In working the invention the impelling force is admitted through valves in the anvil abutment, into the space between the latter and the piston; the piston immediately moves forward, and the slotted arm starts to dip downward, due to the pin (19) fixed to the crosshead (11), and as the impelling force expands and thus loses power the increased leverage gained by the pin (19) moving outward to the end of lever (16), not only compensates for any loss of power but also allows; the piston to. rapidly get away, in addition to gaining further leverage due to pin (18) also moving inward Both the cylinder and-piston rotate at the same time but at varying peripheral speeds in the following manner :At the moment dead center of an engine; when the dead cen ter 1s passed, the propelling power 111- expanding, forces theipiston connected to the crossheadi (:11). by the rod (10) around theannular pathv of. the cylinder at a constant accelerating speed in advance of the cylinder, which follows, rotating at a lesser rate of speed. f a As the arm (-16) rotates upon the pin (17:), the distance,- cf the-pin (19) from the centervv pin increases until the pin (19) has reached the extreme limit of the slot-in arm (16) the pin (18) at the-sametime moves inward toward the center; pin, whenthe po sitions arereversed' and thepin (-19) starts toitgrav'el inward toward the center pin, and the pin (18) outward, this differential dual motionoccurs inone complete revolution of the arm around the pin 'llhe-iim pelling force acts between the adjacent ends of the abutment (8) and piston (9) when they are in the position shown in Fig-.- 2;.

The adjacent faces of: these two elements are of substantially the same area. The impelling force causes the piston (9) to move rapidly'i'n thecircularpathway of-"thecylinderfrom the front end of theabut ment- (8)", which causes the cross head' (151) to move quickly toward the rear or right hand end of the abutment As thepis ton (-11) thus moves, the pin (19)- moves downwardly-intheslot (7) of-the cylinder and outwardly inthe slot (-16) ofthe vi brating lever (-16) thelatterrotating on; its pivot (17). As the vibrating lever (=16) dips-or rotates on its pivot (17) the connection (18) between the cylinder and said lever (16)- causes the cylinder to rotate a relativelyslight distance, with the result that when the cross-head (11); has traveled-to a position adjacent the right hand or rear end of abutment 8,- the cylinderhas been cansed to rotate a smalldegreeby virtue-of the connection 18) between the cylinder and the slot (16) in the vibrating-lever (16). This rotative movement of the vibratinglever (16) causes the pin of the cross-head (-11) to move in a downwardi direction and outwardly in the slot (-16) of the; lever (16), as stated, and causing; the connection (18) between the cylinder, and the lever (16) to move in an upward arc and inwardly. in the slot (16) ofthe lever (16), increasing the leverage of" the lever (16) to facilitate the rotative movement of the cylinder and also facilitate movement of 7 loses ower this increased levera e 'ained l. 1,, i .i. i a D C by pin moving" outwardly to the end of thelever (16), not only compensates for any loss of power but also permits the pisof. impulse the relative distance of the pir s. (18) and (19) to the center pin (17) is"'ap-' proXilnately equal, corresponding:- to. the.

ton vtoget away quickly from, the abutme'nt (8), the inward movement of the pin (18). with relation tothe lever (16) giving further leverage to said lever.

As the cylinder=thus rotates,itbeingfiaed tothe shaft the-latter and the cranli or eccentric (at), connectedto'the shaft, are-no tatedwith the shaft. As said crank oi) ec' centric (4 is rotated in the manner just stated, and beingi -disposed in theslot (15) of thevibrating lever 15 the spindle (13) to which said 'lever (15) iS-fiXed}, is caused to rock. The lever (-12)" fixedlyconnected to the spindle is alsocaused to roc-l or vibrate between its position shown in- Fig. 1

and" the center lineof the shaft Elie saidi vibration of the lever (12);c-auses vibration of theleverj 16), producing the aforesaid increased leverage andthereby.- assisting and facilitating the for-ward movement of the piston (9).

It being understoodthat the-charge-of the impelling force takes placebetweenfthe piston (9) and the abutment (8), and that the cylind'errotates at less speed than; the piston during the impulse stroke, it is explained that the pistonfthen lags at the endi'of" the impulse strokeuntil theabutment ('8) again overtakes the piston, as at the; commence ment. This lagging stroke of; the piston is the exhaust stroke.

' 'Although it might appear that" the rotary motion would be arrested by; the action of the impelling force againstthe piston (9;) and there-action ofsame'on: anvil (8'), this is not so, practice havingproved' that both the piston and cylinder revolve at varying peripheralrates of speed;

Why-H declare asiny vention, and dc sire to secure by Letters Patent is 1. A rotary engineincluding in CQlIllOl'lliL tion, a shaft, a cylinder-keyed tothe shaft and having a circular pathway formed therein concentric with saidshaft; anabut- 1 ment fixed in said pathway, a piston. and cross-head connected" together adapted to travel in said pathwayfa vibrating lever mountedadjacentthe cylinder, a slotted-vi: bratinglever pivotally connected to thegupperend ofthe aforesaid'lever, a connection between the piston and said slotted;vibr;atinglever whiclris slidable-insaidlever, a connection between the cylinderand'said slotted vibrating-lever ancl'which' is slidable in the slot of said slotted lever, and means v between the shaft of the cylindenand the first mentioned vibrating lever to vibratethe lat ter and consequently shift said slot-ted vibrating lever during rotation oftheldrum.

2. A rotary engine including in combination a shaft, a cylinder keyed to the shaft and provided with an annular pathway therein concentric with said shaft, an abutment fixed in the pathway, a piston and a cross-head connected together and adapted to travel in saidpathway, a vibrating lever mounted to vibrate adjacent the cylinder, a slotted lever pivoted on said vibrating lever, a pin secured to the cylinder and having slidable engagement with said slotted lever, a connection between said slotted lever and cross-head, and means for vibrating the vibrating lever.

3. A rotary engine including in combination a shaft, a cylinder keyed to the shaft and provided with an annular pathway concentric with said shaft, an abutment fixed in the pathway, a piston and a cross-head connected together and adapted to travel in said pathway, a vibrating lever mounted adjacent the cylinder, means to operate said vibrating lever from the shaft, a slotted lever pivoted upon said vibrating lever, a pin secured tothe cylinder and adapted to engage said slotted lever, and a pin attached to the cross-head adapted to engage said slotted lever.

fir- A rotary engine including in combination a shaft, a cylinder keyed to the shaft to rotate therewith and having an annular pathway therein concentric with said shaft, an abutment fixed in the pathway, a piston and a cross-head connected together and adapted to travel in said pathway, a slotted lever pivotally mounted adjacent the cylinder, a movable connection between the slotted lever and the cylinder, a movable connection between the cross-head and the slotted lever, and means operable from the shaft to shift the slotted lever and its pivot backwardly and forwardly through a slight are.

5. A rotary engine including in combination, a cylinder keyed to the shaft to rotate therewith and having an annular pathway therein concentric with the shaft, driving factors mounted in the pathway, one of which is fixed therein, a vibrating lever mounted adjacent the cylinder, means to operate said lever from the shaft, and a slotted lever pivotally mounted on the aforesaid vibrating lever and having connection with the cylinder and with one of said driving factors.

In testimony whereof, I afiix my signature, in presence of two witnesses.

JOSEPH ANDREW GYGAR.

\Vitnesses:

E. EARLAND ABELL, OLIVE K. ABELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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