US276028A - Device for converting motion - Google Patents

Device for converting motion Download PDF

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US276028A
US276028A US276028DA US276028A US 276028 A US276028 A US 276028A US 276028D A US276028D A US 276028DA US 276028 A US276028 A US 276028A
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rack
pinion
motion
shaft
collar
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18088Rack and pinion type
    • Y10T74/18104Shiftable pinion

Description

(No Model.)
A. GOULD.
DEVICE FOR CONVERTING MOTION. No. 276,028. Patented Apr. 17,1883.
I 5-7 mm N. PUERs. Pholfl-Ulhugnphvr. Washington. D. C
UNITED STATES PATENT Fries.
DEVICE FOR CONVERTING MOTION.
SPECIFICATION forming part of Letters Patent No. 276,028, dated April 17, 1883.
Application filed March 10, 1883. (No model.)
To all whom it may concern:
Be it known that I, APPLETON GOULD, of Bangor, in the county of Penobscot and State of Maine, have invented certain new and useful Improvements in Mechanical Movements; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, forming a part of this specification, in which- Figure 1 shows a plan of my invention with top of casing removed; Fig. 2, a side elevation of easing, one side removed; Fig. 3, a crosssection of same; Fig. 4, a detail showing pinion and sliding sleeve.
Same letters show like parts.
My invention consists of a device for converting rotary into reciprocating motion, and operates upon the general principle of the pinion and rack. The rack, however, in my case being what may be described as an endless rack.
To describe my invention, by reference to the annexed drawings, a, shows a frame supporting a shaft, 1), rotated in any known manner. At 0 is a table to which a reciprocating motion is to be given, it running on proper tracks in the frame a. To effect this I bolt upon this table a casing, d, which, for convenience in description, we will consider divided by an imaginary vertical division on line a 1). Of these parts 6 and f, the part econtains upon the lower half of its bottom (again considering the division longitudinal) a rack, g, and a similar rack, h, upon the under side of the opposite upper half of its top, forming together what I call my endless rack, R. Into one or the other of these racks, as the case may be, meshes a pinion, i, secured upon the shaft 1) and revolving with it. This shaft is capable of an endwise movement in its boxes, which is effected as follows: The second division, f, of the casing (2 contains a grooved guidetrack, It, in which runs a collar or pulley, 1, secured to the shaft. This track is so shaped, as shown, that when the revolving pinion feeds forward the casing and attachments, and the curved end of the guide-groove reaches the collar l, said collar is forced to follow the groove and curve, moving the shaft endwise,
so as to force the teeth of the pinion out of the part of the rack in which they were meshed and into mesh with the opposite part, instantly reversing the motion of the rack, that ofthe pinion remainingthe same. The curved surface of the ends of the guide-grooves is preferably a compound curve, and can best be stated as that described by the periphery of a disk which is revolving, advancing, and moving laterally at the same time.
It is evident that many modifications of my device may be made withoutdeparting from the principle of my invention. The curved guide, for instance, may be combined with the rack-chamber e of the casing, as shown in dotted lines at 0, making the pinion do not only its own work but that of the collar. The rack It may be made literally continuous,
teeth being cut on these curved ends 0 in such form as may be readily decided by mathematical calculation, so that the teeth of the pinion shall always remain in mesh, even at the time when it is in process of shifting to the opposite sides of the rack. Instead of giving the shaft I) an endwise movement, the
same effect would follow if the pinion and collar were secured upon a sliding sleeve, 19, splined or otherwise secured to the shaft, so as to slide longitudinally upon it.
Although I have described my invention as secured to a longitudinally-reciprocating table, it is obvious that it is capable of use for a great variety of purposes. If the frame or other object to which it is to be attached is to be elevated vertically and drop' by its own weight, one side of my rack may be dispensed with, simply allowing the pinion to be drawn out of mesh and the ,force of gravity to com plete the work.
The number of racks or guides may of course be increased when great strength or power is required.
What I claim as my invention is 1. In a mechanical movement, the combination of the laterally-shifting pinion i, endless rack It, and guiding devices, substantially as set forth, whereby the rack-casing and its attachments are caused to reciprocate,while the rotary motion of the pinion remains the same.
2. The combination of the laterally-shifting pinion z, rack R, sliding sleeve 02, and guiding devices, substantially as set forth.
too
3. 'The combination of the laterally-shiftingpinion 1', and guiding devices whereby said lateral motion is effected, with rack g, secured to a vertically-elevating frame or like device 5 adapted to fall by its own weight.
4. The combination of the laterally -shifting pinion z, rack B, collar 1, and guide-groove k, operating as and for the purposes set forth.
In testimony that I claim the foregoing I have, hereunto set my hand this 7th day of 10 March, 1883.
APPLETON GOULD.
Witnesses:
J. B. B. FIsKE, WM. FRANKLIN SEAVEY.
US276028D Device for converting motion Expired - Lifetime US276028A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263367A (en) * 1964-05-08 1966-08-02 Gen Motors Corp Closure regulator means
US5421555A (en) * 1993-07-28 1995-06-06 Sims; Don M. Quick release trailer jack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263367A (en) * 1964-05-08 1966-08-02 Gen Motors Corp Closure regulator means
US5421555A (en) * 1993-07-28 1995-06-06 Sims; Don M. Quick release trailer jack

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