US751317A - Mechanical movement - Google Patents

Description

PATENTED EEB. 2., 1904.

' A. LINDSAY & J. MEINEET.

MECHANICAL MOVEMENT.

4 APPLIATICVN` FILED JUNE 5, 1903. NO MODEL.V 9

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Patented February 2, 1904.

ALEXANDER LINDSAY AND JOHN MEINERT, OF DAVENPORT, IOWA.

MEcHANloAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 751,317, dated February `2, 1904.

. Application filed June 5, 1903. Serial No. 160,176. (No model.) I i To a/ZZ whom itin/way concern.-

Be it known that we, v'ALEXANDER LINDSAY and JOHN MEINERT, citizens of the' United States, and residents of Davenport, in the county of Scott and State of Iowa, have invented new and useful Improvements in Mechanical Movements, of which the following is a full, clear,"and exact description.

Our invention; relates to novel and useful improvements in mechanical movements.

In carrying out our invention we have particularly in view as an object the provision of an improved mechanism designed for impartingpower to the dasher-shaft of churns and to washing-machines and the like.

A further object of the invention is to provide a device which will be durable in its construction and positive in its operation, while embodying the essential features of simplicity and economy.

A further object of the invention is to provide an improved mechanism which may be used for imparting a rotary reciprocating movement to a-vertical shaft, the power.A being taken from a rotating approximately horizontal shaft. v v l With the above-recited ends and others of a similar nature under consideration the invention consists in theconstrnction, combination, and arrangement of parts, as is described in this specifica-tion, delineated in the accompanying drawings, and set `forth in the appended claims. l i

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a view in side elevation of a mechanism embodying our improvements. Fig. 2 is a vie'w in elevation of the improved cam used in connection with our mechanism, a portion of the cambeing broken away and showing the position of travel of the follower head or block thereon.. Fig. 3 is a plan view showing the portion of the cam at which the ends of the splines or follower-strips terminate.I Fig. 4 is a similar view of a different portion of the cam, and Fig. 5is a view showing the follower traveling along the opposite importance and is as follows:

of the two splines or strips. proximately centrally of the space above 'ref i spline Mor strip to that over which it travels in Eig. 2.

Referring now to the accompanying drawings in detail, A designates a base or suitable support, having mounted thereon the supporting-standards 5 5, said standards being provided with bearing-sleeves 6 6 at their upper end portions, within which sleeves is journaled a horizontally disposed V,driving-shaft f7, said shaft havingsecured at one end thereof a hand-wheel 8, provided with a handle 9, with which said wheel may be turned for thevpurpose of revolving the shaft 7 At the opposite end of the shaft from that carrying the handle is rigidly secured our improved 'cam-wheel, which we have designated as a whole by a. This cam-Wheel is formed with an approximately concaved barrel 10, having at each side thereof circular ianged disk portions 11 11. In referring to the barrel of the cam-wheel as being concaved it is of course to be understood that this implies that the central portion of the cam is of less diameter than the end portions thereof, the barrel being therefore thinnest at its center and flared outward towardthe ends.

l Upon the barrel or body portion of the cam are arranged strips orf splines 12 and 13. The

arrangement of these splines is of particular One of the splines-for instance, that designated by the numeral 12-eXtendsfor the greater portion of its distance around the adjacent ange or edge of the cam, and its end portions are bent at a slight angle to the main portion of the .cam,.said ends 14 14 being directed inward towardthe center of the cam in a similar manner to the ends 14 14,l the construction being such'that a space is left between the four ends Arranged apferred to and socket-ed within the body of the cam-barrel is a switch pinor frog 16, used for the purpose of directing or switching the follower-head at the top of the dasher-shaft. This follower-head is in the nature of a bifurcated block 17 which is adapted to travel over the aforesaid spline or strip, the grooved portion 18 of said bifurcated head readily permitting this. This head portion is secured to a short shaft or stud 19, which in turn is journaled in the bored head 2O of the dasher shaft or rod, which in turn extends through and is journaled in the vertical sleeve 21, said rod having at its lower end any suitable rubber or washer. (Not shown.)

As has been above stated, itis the object of the invention to impart to the vertical shaft or rod 22 a reciprocating rotary motionthat is to say, a movement in which the vertical shaft is turned partially in one direction and then reversed and rotated in the opposite direction-such motion being transmitted from the horizontal shaft 7, which has a continuous rotary motion, through the medium of the cam structure just described.

From the above description, taken in connection with the drawings, the operation of the mechanism will be readily apparent. When the shaft 7 is turned through the medium of the hand-wheel, the cam being rigid therewith is also revolved, and the followerhead is caused to travel along the main body of one of the strips or splines which lies adjacent to the iange of the cam and is then directed inward toward the center of the cam by said strip and with the continuous; revolution of the cam is switched over and across the center to the diagonally opposite end of the other spline, said cam-head then traveling around this spline to the other end thereof, when it is directed across the frog or switch ing-pin in an opposite direction from its rst line of travel. By this it will be seen that a reverse movement is imparted to the shaft as the head crosses the switching-frog in either direction and then on its next revolution of the cam crosses said switch in an opposite direction.

It is to be noted that we have provided an exceedingly-simple mechanism for imparting the reversing or reciprocating motion to the vertical shaft, and such a device will be found extremely convenient for use on many household articles-such as washing machines, churns, and the like-and while we have herein shown and described one particular embodiment of our invention it is of course to be understood that we do not limit ourselves to all the precise details of construction shown herein, as there may be modifications and variations in some respects without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described our invention, we claim as new and desire to secure by Letters Patentm 1. The combination of acam-wheel, splines or strips formed on said cam-wheel, the ends of said strips terminating near the center of the cam-wheel at an angle to the main body portion of the strips, a switching-pin mounted between the terminating portions of the camwheel, a rotating rod, and a grooved followerhead secured to said rod and adapted to travel over the splines or strips when the cam-wheel is revolved, the construction being such that a rotary reciprocating movement will be imparted to the rod, substantially as set forth.

2. The combination with a rotatable rod, of means for imparting a rotary reciprocating movement to said rod, such means comprising a camwheel, splines or strips mounted on said cam-wheel, and the ends of said splines or strips terminating at a point near the center of the barrel of the cam-wheel, and a grooved follower-head secured to the rod and designed to travel over said strips, the construction bcing such that the follower will be switched from one strip to another to and from the center of the cam, substantially as set forth.

3. The combination of a frame, a drivingshaft journaled therein, a cam-wheel at the end of said shaft, splines or strips mounted on said cam-wheel, the main portion of said strips extending partially around the periphery of the cam-wheel, the ends of said strips being bent at an angle to the main portion thereof, said ends terminating near the center of the camwheel, a switching-pin arranged adjacent to the ends of the strips, a rotatable rod journaled in said frame, and a grooved followerhead secured to the upper portion of said rod, the construction being such that when the firstmentioned shaft is rotated the grooved follower-head will travel over the strips and will be directed from one strip to' another by the switching-pin, whereby a reversible movement will be imparted to the rod, substantially as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

ALEXANDER LINDSAY. JOHN MEINERT.

Witnesses: Y

C. XV. HORNBEY,4 Louis BLOCK.

lOO

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