US1251154A - Converting motion. - Google Patents

Description

J. B. WILSON.

CONVERTING MOTION.

APPLICATION FILED JAN. I2. 1917.

1,251,154. Patented Dec. 25,1917.

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CONVERTING MOTION.

APPLICATION FILED JAN. 12.1917.

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CONVERTING MOTION.

APPLICATION FILED mmz. 1917.

Patented Dec. 25,1917.

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JOHN B. WILSON, OF LEADVILLE, COLORADO.

CONVERTING MOTION.

Specification of Letters Patent.

Patented Dec. 25, 1917.

Application filed January 12, 1917. Serial No. 142,012.

To all whom it may concern:

Be it known that 1, JOHN B. WILsoN,a citizen of the United States, residing at Leadville, in the county of Lake and State of Colorado, have invented certain new and useful Improvementsin Converting Motion, of which the following is a specification.

This invention relates to mechanism for converting motion and has for its object the provision of eflicient means whereby oscillator movement in one plane may be converted intostraight reciprocating movement in another plane. The invention also seeks to provide a mechanism for the stated purpose which will be compact and not apt to get out of order and which will operate with precision.

Various incidental objects of the invention will appear as the description of the same proceeds.

One embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of an apparatus embodying my improvements;

Fig. 2' is a detail perspective view of a portion of the mechanism by which the ap-- paratus is connected to the oscillatory or rotary motor;

Fig. 3 is a longitudinal section;

Fig. 4 is a detail plan view of the spoolcarrying frames;

Fig. 5 is a plan view of the apparatus;

Fig. 6 is a detail view showing the arrangement of the spools, and

Figs. 7 and 8 are elevations of the opposite end of the apparatus.

In carrying out my invention, I employ supports or pedestals which are spaced apart and are provided with base portions or feet 1 by which they may be secured to the floor of the engine room or to some other fixed support. Rising from the feet or base portions 1 are standard 2 which are connected at their upper ends by cross beams 3, there being a pair of standards and a cross beam connecting the same at each end of the apparatus. At the center of the support appearing at the left of Figs. 1, 3 and 5, I form an enlargement 4 which constitutes one member of a bearing which receives a sleeve 5, the upper portion of the bearing being provided by a cap plate 6 which is bolted or otherwise secured upon the portion 4 and extends over the sleeve 5, as clearly shown. One end of this sleeve is provided wlth an annular flange 7 fitted against the outer side of the bearing and the opposite end of the.

sleeve is integral with or otherwise fixed to the upper extremity 8 of a crank member which has its lower extremity 9 formed integral with the outer end of an arm 10 projectin from a drum 11. A wrist pin12is provi ed upon the lower extremity 9 of said crank member and the upper extremity 8 of the same is offset from the lower portion thereof, as shown at 13, the said offset portion being constructed with a lip 14 having a concave upper edge to receive and provide a seat for a ring or collar 15. This ring or collar 15 fits around the hub 16 of a crank 17 and is provided with a flange 18 which fits between the lip 14 and the side of the said crank so that the crank cannot move along its own axis. A wrist pin 19 is provided at the upper end of the said crank and this wrist pin, as well as the wrist pin 12, may be connected to any motor or to a machine to be driven. A shaft 20 extends through the hub 16 and the sleeve 5 and is feathered within the hub and the lever so that while it will be constrained to rotate or oscillate with the said lever, it will be per-' mitted to move longitudinally. and thereby reciprocate through the lever. The shaft fits within .the sleeve 5 loosely enough to move freely and at the same time snugly enough to be properly supported by the sleeve.

The drum 11 is constructed with longitudinal ribs 21 on its outer surface whereby to strengthen the same and is also provided at its outerend with an internal rim 22 whereby oil which may be placed within the drum will be prevented from escaping. The drum is provided on its inner surface with a spiral groove 23 and at its inner end is reduced and constructed with a cylindrical extension 24 adapted to fit within the meeting adjacent end of a similar drum 25. The drum 25 is provided with a rim 26 at its 'outer end to'prevent the escape of oil and the extension 24 should be long enough to always be within the drum 25.so that the oil cannot leak out through the space between the two drums. The drum 25 is provided on its inner surface with spiral grooves 27, similar in all respects to the grooves 23, and upon its outer side .is provided with spaced pairs of brackets or sockets 28 which are adapted to receive the ends of the longitudinal arms 29 extending of these arms 29 are rigidly secured within the sockets or brackets 28 so that the drum 25 will be caused to move with the frame 30.

The frame 30 is illustrated as an open rectangular frame disposed normally adjacent the outer end of the drum l1 and adapted to extend partly into the said end, the arms 29 extending from the sides of the said frame 30 radially across the end of the drum and then passing through the guides 31, as shown and as will be readily understood. The shaft 20 extends through the frame 30 and fits within the bearing blocks 32 which are supported within the frame 30 by bolts or adjusting screws 33 whereby the proper position of the parts may be easily attained. The shaft is provided with an annular shoulder or stop 34 which bears against the outer end of the bearing blocks 32 and the inner end of the said shaft is integral with a yoke or spool-carrying frame 35, a shoulder being thereby provided to bear against the inner edges of the bearing blocks 32 so that relative longitudinal movement of the shaft or the bearing will be prevented but relative rotary movement will be permitted. The yoke or frame 35 is an open rectangular frame having longitudinal ribs 36 on its upper and lower edges to slidably receive the arms 37 projecting longitudinally from a similar yoke or frame 38. Each of these frames 35 and 38 is constructed with lateral bearing brackets 39 arranged to receive the pins 40 upon which the spools 41 are mounted. It will be readily noted that the ar rangement of parts is such that the spools will set at a slight inclination andfconsequently, the flanges 42 thereof will engage the grooves 23 or 27 and will run in said grooves. To facilitate the rotation of the spools, they are not fitted directly upon the pins 40 but are supported by anti-friction earings carried in disks 43 which are fitted upon the pins in any convenient or preferred manner. These anti-friction bearings may I be of any well-known type ad are, therefore, "not illustrated in detail.

The yoke or frame 38: is provided at its outer end with a pin 44 journaled within a slidable hearing or support 45, the said support comprising a standard having an openng 46 therein in which is fitted a bearing block 47 which is held down upon the pin 44 b adjusting screws 48. The bearing block 47 may be provided with an opening 49 for the admission of lubricant to the pin and the parts should be so proportioned that the pin may rotate freely within the hearing but will be effectually held in its proper position. The rear or outer end of the frame 38 will vfit against the inner side of the support while upon the outer end of the pin 44 may be fitted a cap or other stop 50 to bear against the outer side of the support so that movement of the pin longitudinally with respect to the bearing will be prevented. The support 45 is constructed with lateral feet 51 which rest slidably upon the cross bar or beam. of the adjacent main support and is held to the said cross bar or beam by retainers 52 which are constructed to project over the feed 51 and are secured upon the vide the extension plate 54 which rides upon the central rib 55 of the pedestal, as will be readily understood. Lubricant may be placedbetween the said rib and the sliding standard so as to facilitate movement of the parts and minimize wear, as will be readily understood. Wrist pins 56 project from the sides of the standard 45 and these wrist pins may have fitted thereon the ends of the pitmen or links, as indicated at 57.

The wrist pins 12 and 19 are connected to a source of power and are oscillated in opposite directions. The oscillation of the pin 19 will be transmitted to the lever 17 and thence through the shaft 20 to the spoolcarrying frame or yoke 35, while the oscillation of the wrist pin 12 will be transmitted directly through the arm 10 to the drum 11,

the result being that the spools carried by against longitudinal movement by the engagement of the flange 7 and the crank extremity 8 with the ends of the bearings 4 and 6. The shaft 20 will move outwardly through the sleeve 5 and the frame 30 will be carried therewith so that the arms 29 will be caused to move longitudinally over the drum 11 and, consequently, exert a pull upon the drum: 25. The longitudinal sliding movement of the drum 25 will impart a like movement through the spools to the frame 38 which will thereupon be moved away from one main supporting pedestal and cause a sliding movement on said pedestal of the bracket 45. Inasmuch as the frame 38 is held to the frame 35 by the engagement of the arms 37 and the ribs 36, the said frame 38 will be likewise oscillated and this oscillatory or rotary movement of the frame 38 will effect travel of the same along the grooves 29 so that the travel of the pin 44 will be amplified and accelerated. The links or pitmen 57 connected with the bracket 45 by the pins 56 will, consequently,

be moved through a greater path than that described by the pins 12 and 19. When the movement of the pins 12 and 19 is reversed, the movement of the other parts will also be reversed and it will be readily noted that within a small space I am enabled to convert a comparatively short oscillatory stroke into a relatively long straight reciprocating stroke. This conversion of motion will be found very advantageous in numerous factories and plants in which power is employed.

Having thus described the invention, what is claimed as new is: p

l. A machine for the purpose set forth comprising a plurality of drums, means for oscillating the drums, and means for causing the drums to approach and recede as they are oscillated.

2. In a machine for the purpose set forth, the combination of a drum held against longitudinal movement, means for oscillating said drum, a frame mounted within the drum, and interengaging means between the frame and the drum whereby the frame will be reciprocated as the drum is oscillated.

3. In a machine for the purpose set forth, the combination of a drum held against longitudinal movement and provided internally with a spiral groove, a frame disposed within the drum and mounted for longitudinal movement, means for oscillating the drum, and spools carried by the frame and engaging the groove in the drum whereby as the drum is oscillated the frame will be reciprocated.

t. The combination of axially alined drums having internal rims at their outer ends, a sleeve on the inner end of one of said drums fitting within the inner end of the other drum, a frame disposed within one of the drums, connections between the said frame and the other drum, and means whereby oscillation ofthe drum containing the frame will effect reciprocation of the other drum.

5. The combination of a drum, means for oscillating said drum, a frame disposed within the drum, means whereby oscillation of the drum will cause reciprocation of the frame, a second drum, connections between the second drum and said frame, and a. frame disposed within the second drum and connected with a part to be driven and mounted to receive reciprocatory movement from the drum.

6. The combination of a drum, means for oscillating the drum, a frame mounted within the clr'um means for oscillating said frame in a direction opposed to the movement of the drum, means whereby said frame will be moved longitudinally as the drum oscillated, a second drum, connections between said second drum and the frame, a second frame mounted within the second drum, means whereby the movement of said second drum will be imparted to the said second frame, and means whereby said frame will be oscillated with the first-mentioned frame.

7. The combination of supports, a pair of telescoping drums disposed between the supports, means carried by one of the supports for oscillating one of the drums, frames mounted within the respective drums and telescopically fitted together, one of said frames being connected with the more remote drum, means on the support for oscillating said frames, and a slidably mounted bracket on the other support connected with the adjacent frame.

In testimony whereof I aflix my signature.

JOHN B. WILSON. [11.8.]

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