US1716543A

US1716543A - Mechanical movement

Info

Publication number: US1716543A
Application number: US142639A
Authority: US
Inventors: Erich Reuben
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-10-19
Filing date: 1926-10-19
Publication date: 1929-06-11
Anticipated expiration: 1946-06-11

Description

June 11, 1929. ERICH EJ165413 MECHANICAL MOVEMENT Filed Oct 19 1926 FIGURE 2 Patented June 11 UNITED .sTArEs OFFICE.

. REUBEN VEBICH, oFsAn JosE, CALIFORNIA.

Y MECHANICAL MOVEMENT. 1

Application filed October 19, 1926. SeriaLINo. 142,639.

It is the object of the invention to'provide a simple and efficient mechanism whereby rotary motion. may be transformed into linear motion.

It is alsoan object of the invention to provide a movement of the character indicatcd particularly adapted to transform the rotary motion of a crank shaft of an engine to linear motion as applied to the engine piston, and vicc versa.

In the drawing:

Figure 1 is a diagrammatical illustration the device through the medium of piston 1',

then the shaft 2 may be termed the driven shaft.

On the driven shaft 2 is keyed a gear 3 and meshing with the gear 3 are two smaller gears 4 and 5 respect1vely. These gears 4 2 and 5 bear any desired ratio to the gear 3 andare mounted diametrically opposite each other as shown, on crank shafts 6 and 7 the arms 8 and 9 being angularly arranged relative toeach other as hereinafter more fully set forth.

- On pins 10-and 11 of crank shafts 6 and 7 are mounted links 12 and 13, these links being journaled upon the piston 1 as shown at '14.

In order that function e in the manner hereinafter described it is necessary that they be properly proportioned and arranged. This proportioning' and arranging is accomplished in the following manner, using the diagram in Figure 1 for the purpose of illustration.-

Starting with the given lineA-B it is first divided into five equal parts. With A as a center describe a circle C, and with 'B as a center and-the same radius describe a circle I). Lay off the angle BAE equal to 130 and the'angle ABF equal to 130 there-' by securing the radii G and H respectively; Erect the perpendiculars AI and BJ to the K lies in the. perpendicular bisector of AB.

If the two radii G and H are now rotated Figure 2 is an illustration of the device the. assembled parts may radii AE and BF, which perpendicular-s interscct at K. Connect KE with the line about their pivotal points A and I B with equal angular velocity in the same direction the point K will move in a, straight line parallel with the line AB, reciprocating betweenthe points K and K An important feature in this construction is the angle described by the radius G (and of course H) in the two opposite movements of the point K; that is, from K to K andfrom K to K Assuming the point K to be at K, then E will be at E an F at F. Now, while K moves to. K the radius G will swing through the are N, E moving to E The radius H willimove through a similar are. to F Itmay be seen therefore, that in 'moving K in a straight line toK? the-radii Grand H have described arcs of approximately 220. Obviously,"

then, the return movement of K to K can only carry the radii G and H from E to E andjfrom F to F, through an arc of approximately 140.

If, now, the mechanism shown in Figure 2 is constructed in accordancewith the foregoing disclosure with the gear 3 inserted as shown, the-circular pitch lines'of the two gears 4 and 5 corresponding withthe circles C and D, the arms 8 and 9 corresponding with the radii G and H, and the links 12 and 13 corresponding to the lines L and M, the

piston 1 will be reciprocated. along the straight line K K while a' rotary motion will be imparted to the shaft 2. In accurately. plotting the path of'travel of the point' K it is found that while it travels in a straight line in one direction it forms a slight loop at each end of its path of travel in the opposite direction as indicated at 14. This loop is so slight, however, that it may be entirely disregarded in the practical application of the principle to a working mechanism.

It is to be understood, of course, that while I have herein shown and described but one specific embodiment of the invention, changes in form, construction and method of operation may be made within the scope of the appended claims.

I claim:

1. A mechanical movement comprising a pair of spaced revoluble cranks of equal length on spaced parallel axes and means forv driving the same at equal angular velocities in the same direction, and links of equal length pivotally connected to each substantially parallel' withsaid' first mentioned axes and to said cranks at equal distances from their axes of rotation.

,2. -'A mechanical movement comprising apair ofspaced "revoluble cranks of equal length positioned at given equal angles to a straight line passing through their axes of' rotation and means for driving the same at -the plane of axes of said cranks and to said cranks at equal distances'from their axes of rotation. I I

3. A mechamcal movement comprislng a -pair of spaced "revoluble cranks of equal length positioned at-angles of fifty degrees to a straight line passing through thelr axes 'of'rotation and oppositely directed relative to a perpendicular bisector of said line and means for driving the -same at equal angular at tion.

velocities in the same direction, and links of equal length connected to each other and to. said cranks at equal distances'fronr their axes :of rotation. t I v j 4.,A mechanical movement comprising a pair of spaced revoluble cranks of equal length positioned at angles hf fifty degrees to a straight line passing through their axes of rotation and on thesame side thereof and oppositely directed'relative to a per endicular bisectorof-saidline, and means or driv ing the same'at equal angular velocities in the same direction, and links of equal length connected to eachother and to said cranks equal distances from their axes of rota- 5. A fnechanical movement comprising a pair of revoluble cranks of equal length havtheir axes of rotation and on the same side thereof and oppositely directed relative to a perpendicular bisector of's'aidline, and links a of equal length connected to each other and 1 to said cranks at equal distances from their axes of rotation.

6. A mechanical movement comprising a pair of spaced revoluble cranks of equal length positioned at angles of fifty degrees to a straight line passing through their axes of rotation and on v the same side thereof and oppositely directed relative to a perpen' dicular bisector of said line, and means for driving the same at equal angular velocities in the same direction, and links of-e'qual length connected tosaid cranks at equal distances from their axes of rotation, and to each. other at a point lying in said perpendicular bisector and in aline perpendicular. to either crank at'its axis of rotation.

7. A mechanical movement comprising a pair of spaced revoluble cranks of equal length on spaced parallel axes and means for driving the same at equal angular velocities in the same direction, and links of equal length. pivotally connected to said cranks at equal distances from their axes of rotation and connected to each other at the intersection ofperpendiculars to said cranks at their axes of rotation when saidcranks are positioned at an angle of fift degrees to a straight line passing throng thelr axes.

, REUBEN ERICH'.