US847902A - Gear for pumps. - Google Patents

Gear for pumps. Download PDF

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Publication number
US847902A
US847902A US30459306A US1906304593A US847902A US 847902 A US847902 A US 847902A US 30459306 A US30459306 A US 30459306A US 1906304593 A US1906304593 A US 1906304593A US 847902 A US847902 A US 847902A
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Prior art keywords
casing
gear
pumps
pinion
teeth
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Expired - Lifetime
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US30459306A
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Charles Cannell
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F16H19/043—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18088—Rack and pinion type
    • Y10T74/18096—Shifting rack

Definitions

  • This invention relates to an improved gear for operating the purnp-rod of windmills or other pumps; and its object is to provide for a stroke of any required length and at the same time minimize the strain on the mill inherent with crank-gearing generally employed for the purpose.
  • FIG. 1 is a front elevation of the gear with parts removed; Fig. 2, a horizontal section on line II II, Fig. 1; Fig. 3, a vertical section on line III III, Fig. 1; and Fig. 4, a side elevation.
  • a pinion 1 is mounted on the end of the power-shaft 2, j ournaled in the main frame 3 of the windmill or other pump, and said pinion is geared with the teeth 4 of a rack-b ar 5, secured to an open-faced casing 6, inclosing the gear and formed with semicircular ends, as shown.
  • the teeth 4 are formed in the vertical centers of the sides of the bar 5 and extend completely around same, while the parts of said bar on either side of the teeth act as rollertracks 7 in conjunction with the sides 8 of the casing.
  • the pinion is provided on either or both sides with vertical friction-rollers 9 of larger diameter than the pinion, preferably mounted on ball-bearings on the power-shaft 2, said rollers being adapted to fit on either side of the teeth of the rack-bar and roll between said roller-tracks 7 and the sides 8 of the casing, and so insure the pinion meshing with the rack-bar and at the same time acting as vertical guides for the casing.
  • the casing is detachably connected to the pump-rod, so that when the pinion is rotated by the windmill or other motor it causes the rack-bar to travel around said pinion, thus imparting to the pump-rod a 15, joined together by a suitable joint to allow the casing to have a small vertical and horizontal movement independent of the pump in order to overcome the undue friction created at the top of said casing when the end of the rack is' passing under the pinion.
  • the joint comprises a swivel slotted link 16, attached to the part 15 of the pumprod, and the latter is provided with an adjustable collar 17, adapted to rest on an arm 18 on the fixed frame and limit the down ward movement of said pump-rod.
  • the end of the other part 10 of the rod is passed through a hole in the top of the link and secured within the slot thereof by a button 19.
  • the casing has a movement independent of that of the main pumprod 15, the length of which is controlled by the length of the slot in the link.
  • a pair of horizontal friction-rollers 11 are provided, which are loosely mounted in a bracket 12, extending across the face of the casing and secured to the stationary frame 3.
  • the casing is provided with vertical guides 13, secured to either side thereof, and said rollers fit between said guides and the face 14 of the casing.
  • a pinion mounted on a rotatable shaft and geared With said teeth, frictionq'ollers on said shaft situated on each side of said pinion and adapted to roll between said tracks and the sides of the casing, in combination with vertical guides attached to said casing and arranged parallel to the front thereof and friction-rollers situate between said guides and the front of said casing substantially as set forth.
  • a gear for pumps comprising a casing, a rack-bar secured to the casing, having an endless row of teeth and adapted to be detachably connected to a pump-rod, a pinion mounted on a power-shaft and gearing with CHAR LES (AN N El J] 1. ⁇ Vitnesses:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)

Description

PATENTED MAR. 19, 1907 a. GANNELL.
GEAR FOR PUMPS; APPLICATION FILED MAR. 6. 1906.
2 SHEETSBHBBT 1.
'PATENTBD MAR. 19, 1907.
U. GANNELL.
GEAR FOR PUMPS.
APPLIOATION FILED MAE. e. 1906.
2 SHEETS-SHEET z.
UNITED STATES PATENT OFFICE.
CHARLES CANNELL, OF ST. MARYS, TASMANIA, AUSTRALIA, ASSIGNOR TO JAMES ALSTON, OF SOUTH MELBOURNE, VICTORIA, AUSTRALIA.
GEAR FOR PUMPS.
Specification of Letters Patent.
Patented March 19, 1907.
To all whom it may concern:
Be it known that I, CHARLES CANNELL, a subject of the King of Great Britain, residing at Groom street, St. Marys, in the State of Tasmania, Australia, coach-builder, have invented an Improved Gear for Increasing the Stroke of Pumps, of which the following is a specification.
This invention relates to an improved gear for operating the purnp-rod of windmills or other pumps; and its object is to provide for a stroke of any required length and at the same time minimize the strain on the mill inherent with crank-gearing generally employed for the purpose.
The invention is illustrated in the acc'ompanying drawings, whereof-- Figure 1 is a front elevation of the gear with parts removed; Fig. 2, a horizontal section on line II II, Fig. 1; Fig. 3, a vertical section on line III III, Fig. 1; and Fig. 4, a side elevation.
Referring now to these drawings, a pinion 1 is mounted on the end of the power-shaft 2, j ournaled in the main frame 3 of the windmill or other pump, and said pinion is geared with the teeth 4 of a rack-b ar 5, secured to an open-faced casing 6, inclosing the gear and formed with semicircular ends, as shown. The teeth 4 are formed in the vertical centers of the sides of the bar 5 and extend completely around same, while the parts of said bar on either side of the teeth act as rollertracks 7 in conjunction with the sides 8 of the casing.
The pinion is provided on either or both sides with vertical friction-rollers 9 of larger diameter than the pinion, preferably mounted on ball-bearings on the power-shaft 2, said rollers being adapted to fit on either side of the teeth of the rack-bar and roll between said roller-tracks 7 and the sides 8 of the casing, and so insure the pinion meshing with the rack-bar and at the same time acting as vertical guides for the casing.
The casing is detachably connected to the pump-rod, so that when the pinion is rotated by the windmill or other motor it causes the rack-bar to travel around said pinion, thus imparting to the pump-rod a 15, joined together by a suitable joint to allow the casing to have a small vertical and horizontal movement independent of the pump in order to overcome the undue friction created at the top of said casing when the end of the rack is' passing under the pinion. The joint comprises a swivel slotted link 16, attached to the part 15 of the pumprod, and the latter is provided with an adjustable collar 17, adapted to rest on an arm 18 on the fixed frame and limit the down ward movement of said pump-rod. The end of the other part 10 of the rod is passed through a hole in the top of the link and secured within the slot thereof by a button 19. By this arrangement the casing has a movement independent of that of the main pumprod 15, the length of which is controlled by the length of the slot in the link.
In order to guide the casing vertically, and so prevent an exceptionally long casing twisting at the ends of its up or down strokes, a pair of horizontal friction-rollers 11 are provided, which are loosely mounted in a bracket 12, extending across the face of the casing and secured to the stationary frame 3. The casing is provided with vertical guides 13, secured to either side thereof, and said rollers fit between said guides and the face 14 of the casing. 'The effect of this arrangement is that the horizontal rollers 11, in conjunction with the vertical rollers 9, counteract any tendency of the casing to tilt or twist in any direction and at the same time constitute I practically frictionless bearings for said casing.
It will be understood that in order to lengthen or shorten the stroke of a pump-rod it is only necessary to detach the casing and substitute another therefor.
With the foregoing gear in addition to the row of teeth and recessed roller-tracks on each side of the teeth thereof, a pinion mounted on a rotatable shaft and geared With said teeth, frictionq'ollers on said shaft situated on each side of said pinion and adapted to roll between said tracks and the sides of the casing, in combination with vertical guides attached to said casing and arranged parallel to the front thereof and friction-rollers situate between said guides and the front of said casing substantially as set forth.
2. A gear for pumps comprising a casing, a rack-bar secured to the casing, having an endless row of teeth and adapted to be detachably connected to a pump-rod, a pinion mounted on a power-shaft and gearing with CHAR LES (AN N El J] 1. \Vitnesses:
lilAR n Y STU RR R i), InNnsAY TULLOCJI.
US30459306A 1906-03-06 1906-03-06 Gear for pumps. Expired - Lifetime US847902A (en)

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