US669379A - Mechanical movement. - Google Patents

Description

No. 669,379. Patented Mar. 5, l90l.

A. BAUGHMAN. .MECHANICAL MOVEMENT. (Application filed Nov. 8,1900) (Nu Model.) 2 Shoets-SheaLl.

No. 699,379. Patented mar. 5, 190|.

A. BAUGHMAN.

MECHANICAL MOVEMENT.

Application filed Nov. 8, 1900) (No Model.) 2 Sheets-Sheet 2.

UNiTnn STATES nParent OFFICE.

ALVIN BAUGHMAN, OF GRISWOLD, IOWA, ASSIGNOR OF ONE-FOURTH TO GEORGE PLUMMER BAUGHMAN, OF WHATOHEER, IOWA.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 669,37 9, dated March 5, 1901.

Application filed November 8, 1900. Serial No. 35,863. (No model To al whom it may concern: guards 5, which, as shown, consist of curved Be it known that I, ALVIN BAUGHMAN, a plates secured to the opposite sides ofy the citizen of the United States, residing at Grisframe l and projecting beyond the periphery Wold, in the county of Cass and State of Iowa, thereof. The trackway 3 is by this construc- 55 5 have invented new and useful Improvements tion closed on opposite sides at the ends of in Mechanical Movements, of which the folthe frame. Adjacent to one end of each of lowing is a specification. the curved guards 5 are rollers 6 6, arranged My invention relates to mechanical movein pairs upon opposite sides of the frame 1 ments, the object of the same being to proand serving as engagingportions for cams, 6o 1o vide novel means for converting rotary into as will hereinafter appear. The rotary shaft reciprocating motion, or vice versa, the same 7 lies at right angles to the plane of the frame being adapted for use in connection with Y l, extends into or through said frame, and windmills, engines, bicycles, and the like. has a pinion 8 thereon Which meshes with The invention consists of a hollow substanthe rack-teeth 2. In order that the pinion 8 6; tially elliptical frame having internal rackmay travel from the rack-teeth 2 on one side teeth thereon, arotary shaft, apinion thereon of the -frarne 1 to those on the other side, meshing with said rack teeth, a traveler some means must 'be provided for guiding adapted to move upon a track on the outer the frame l and for holding the pinion 8 in surface of said frame loosely connected with engagement with the teeth 2 on one side or 7o zo said shaft and having a cam thereon adapted the other. The means provided by me conto engage a roller on said frame for automat-y sists of track-travelers 9 in the form of antiically shifting said traveler from one side of friction rollers mounted in the ends of arms the frame to the other at opposite ends of the 10, looselyv mounted on the shaft 7 on opposite stroke. sides of the pinion 8. These rollers 9 are 75 The invention also consists in certain feaadapted to move in the two parts of the tracktures and details of construction and com- Way 3, and as they are mounted on the shaft binations of parts, which Will be hereinafter 7 they Will serve to maintain the pinion 8 in more fully described and claimed. engagement With the rack-teeth 2 of the In the drawings forming a part of this frame l no matter what the relative position 8o l 3o specification, Figure l isaside elevation illusof the shaft 7 and said frame may be. The trative of my invention. Fig. 2 is a top or ends of the arms lO opposite those in which edge'view of the same. Fig. 3 is a view simithe rollers 9 are mounted are in the form of lar to Fig. l, showing the reciprocating memcams, the same being provided with cam-surbernear the end of its stroke in one direction; faces 1l, which are adapted to engage the 8 5 and Fig. 4.- is an end view, partly in section. rollers 6 on the frame l. Said cam-surfaces Fig. 5 is a side elevation illustrating a modi- 1l gradually increase in distance from the fled construction. Fig. 6 is a top or edge shaft 7 from the points l2 to the extreme ends view of the same. Fig. 7isacross-section on of the arms lO opposite the rollers 9. By

the line 7 7 of Fig. 5. this construction it Will be seen that if the 9o 4o Like reference-numerals indicate like parts shaft 7 be the driving member and the frame in the different views. l the driven member when the pinion 8 is in The hollow frame l is substantially ellipmesh with the teeth 2 on the lower side of the tical in shape having straight parallel sides frame l the rollers 9, which constitute the and rounded ends. The inner surface of the track-travelers, Will lie beneath the shaft 7 95 frame l is provided with rack-teeth 2, and and be in engagement with that portion of the periphery of said frame is formed with a the track 3 which is on the under side of the track 3 extending entirely around the same. frame l. Now then when the frame l has This track 3 is double, the two parts thereof been moved to a point near the end of its being separated from each other by a projectstroke to the left the cam-surfaces l1 on the 10o o ing rib 4. At the curved ends of the frame l arms lO will be brought into engagement with the two parts of the track are provided with the rollers 6 at the upper right-hand end of the frame 1. The result of this action will be to throw the lower ends of the arms 10, carrying the rollers or track-travelers 9, tothe right, and thence upwardly around the curved end of the track 3 between the guards 5 until they assume a position in the track 3 on the upper side of the frame 1. The continuous rotation of the shaft '7 will move the frame 1 to the right, the pinion 8 being held in mesh with the rack-teeth 2 of the frame 1 by the engagement of the rollers 9 with the upper part of the track 3. When the frame 1 reaches the end of its stroke to the right, the cam-surfaces 11 are brought into engagement with the rollers 6 at the lower left-hand end of the frame 1, and the arms 10, carrying the rollers or track-travelers 9, are turned first to the left and then downwardly into their original position beneath the shaft 7 and in engagement with the lower part of the track 3. It will thus be seen that the pinion 8 and rack-teeth 2 are held in mesh with each other at all positions. Furthermore, it is then impossible for any clogging or binding between the different parts of the device by reason of the engagement of the pinion 8 with more than one portionof the rack-teeth.

In the modified form of myinvention illustrated in Figs. 5, 6, and 7 of the drawings thel elliptical frame 1L is made in two parts parallel to each other and slightly separated, so as to form a continuous gnideway 13 between them. The two parts of said frame are held in this position by means of U-shaped connecting-plates 14 14, secured to the ends of the two parts of said frame. The cams 11 are, as before, loosely mounted on the shaft '7; but two pinions 8 8b are secured to saidv shaft which mesh with the rack-teeth on the two parts of the frame 1a. A single arm 10a, in which the rollers or track-travelers 12a aref mounted, is employed instead of the twin arms 10 and rollers 9. The end of the arm 10a adjacent to the rollers 9a projects through the guideway 13 between the two parts of the frame, and the opposite end of said arm 10 is formed with a circular enlargement 15, whose edge projects into the guideway 13. Thel arm 10 is loosely mounted on the shaft 7 and is secured to the cams 11 by means of bolts, screws, or other analogous securing devices extending through said cams and said circular enlargement 15. By constructing the device in the manner just described a single track-traveler-su pporting arm 10' instead of af plurality ofthe same maybe employed,and the arm 10a and its circular enlargement moving in the guideway 13 serve as guides or guards to prevent the lateral displacement of the frame 1a and the cams 11 and pinions 8a and 8b, connected with the shaft 7. The operation of this form of my invention is similar to that described with reference to the construction shown in Figs. 1, 2, 3, and 4 of the drawings.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, isl 1. The combination with a hollow, substantially elliptical frame having internal rackteeth thereon, a rotary shaft and a pinion thereon adapted to mesh with the rack-teeth on said frame, .of a track-traveler adapted to engage the periphery of said frame for holding said pinion in engagement with said rackteeth, and means for automatically shifting said traveler from one side of the frame to the other at the ends of the strokes of said frame.

2. The combination with a hollow, substantially elliptical frame having internal rackteeLh thereon, a rotary shaft and a pinion thereon adapted to mesh with the rack-teeth on said frame, of a track-traveler loosely connected to said shaft and adapted to engage the periphery of said frame for holding said pinion in mesh with said rack-teeth, and means for shifting the position of said traveler from one side of said frame to the other at the ends of the strokes of said frame.

3. The combination with ahollow, substantially elliptical frame having .internal rackteeth thereon, a rotary shaft and a pinion thereon adapted to mesh with the rack-teeth on said frame, of an arm loosely connected with said shaft, an antifriction-roller mounted in said arm constituting a track-traveler, and adapted to move on a track on the periphery of said frame for holding said pinion in mesh with said rack-teeth, and means for automatically shifting the position of said rollers from one side of said frame to the other at the ends of the strokes of said frame.

4. The combination with ahollow, substantially elliptical frame having internal rackteeth thereon and having engaging portions on opposite sides near its opposite ends a rotary shaft and a pinion on said shaft adapted to mesh with said rack-teeth, of a track-traveler adapted to move in a track on the periphery of said frame for holding said pinion in mesh with said rack-teeth, and a cam connected with said traveler and adapted to be acted upon by said engaging portions for shifting said traveler from one side of said frame to the other.

5. The combinationwith a hollow, substantially elliptical framehaving internal rackteeth thereon, a rotary shaft and a pinion thereon adapted to mesh with the rack-teeth on said frame, of a track-traveler adapted to engage the periphery of said frame for holding said pinion in engagement with said rackteeth, means-for automatically shifting said traveler from one side of the frame to the other at the ends of the strokes of said frame,

and a guide or guard for holding said frame and said pinion in proper relation to each other.

6. The combination with a hollow, substantially elliptical frame having internal rackteeth thereon and having engaging portions IOC) IIO

on opposite sides near its opposite ends, a rotary shaft, and a pinion on said shaft adapted to mesh with said rack-teeth, of a tracktraveler adapted to move on the periphery of said frame for holding said pinion in mesh with said rack-teeth, a cam connected with said traveler and adapted to be act-ed upon by said engaging portions for shifting said traveler from one side of the frame to the other, and a guide or guard for preventing lateral displacement of said frame and said pinion and cam with respect to each other.

7. The combination witha hollow, substantiallyelliptical frame having internal rackteeth thereon and having engaging portions on opposite sides near its opposite ends, the said frame being made in two parts forming a continuous guideway between said parts, a rotary shaft, and pinions on said shaft adapted to mesh with the rack-teeth on the two parts of said frame, of an arm loosely mounted on said shaft and projecting through said guideway, one end of said arm having a circular enlargement thereon which projects.

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