US837261A - Expansible pulley. - Google Patents

Expansible pulley. Download PDF

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Publication number
US837261A
US837261A US289407A US1905289407A US837261A US 837261 A US837261 A US 837261A US 289407 A US289407 A US 289407A US 1905289407 A US1905289407 A US 1905289407A US 837261 A US837261 A US 837261A
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United States
Prior art keywords
cap
shaft
rim
pulley
sleeve
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Expired - Lifetime
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US289407A
Inventor
George S Cox
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GEORGE S COX AND BROTHER
WALTER S COX
Original Assignee
GEORGE S COX AND BROTHER
WALTER S COX
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Priority claimed from US26622805A external-priority patent/US891914A/en
Application filed by GEORGE S COX AND BROTHER, WALTER S COX filed Critical GEORGE S COX AND BROTHER
Priority to US289407A priority Critical patent/US837261A/en
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Publication of US837261A publication Critical patent/US837261A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/10—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley provided with radially-actuatable elements carrying the belt

Definitions

  • the object of the invention is to provide a construction whereby the diameter of a pulley may be expanded or contracted.
  • Figure 1 is a transverse sectional view of a pulley, its shaft, and the means for expanding and contracting it.
  • FIG. 2 is a side elevation of one-half the pulg is a shaft on which the expansible and contractible pulley 'i is keyed.
  • the pulley t' is constructed as follows: Extending radially inward from the sectional rim k are arms m, slidable in guides in arms n, projecting radially outward from the hub Z.
  • the rimarms m are provided with radial slots 0.
  • Z represents plates secured to the hub l and fitting over the rim-arms m.
  • p represents tap-bolts extending through the slots and engaging bolt-holes in the hub-arms n. represents nuts on the ends of bolts p.
  • nuts By tightening the nuts they are caused to bind firmly against the rim-arms m, thereby securing the rimarms m and hub-arms 'n together in their adjusted positions.
  • By loosening the nuts the rim-arms, with their rim-sections, may be moved radially inwardly from the ex panded position shown, thereby contracting the pulley.
  • u is a sleeve keyed on shaft g.
  • Pivoted at one end to the rim-arms m and at the other end to the sleeve u are links, each composed of the sections 1 ⁇ s, screw-threaded at their inner ends and connected together by means of a threaded sleeve t, thereby enabling the lengthof the link to be varied.
  • the shaft g is a cap o
  • the sleeved portion of which is separated from the sleeve u by a is a collar overlapping and encircling both sleeve u
  • 'y is a bolt by means of which collar w is secured to cap v. is a block or ring extending into an annular groove in sleeve u.
  • 2 is a bolt by means of which collar w is secured to ring 10.
  • 11 is a threaded shaft secured in the end of shaft g on the line of the latters axis.
  • 12 is a handwheel keyed on the neck 13 of cap o.
  • a shaft on which the pulley is mounted in combination, a shaft on which the pulley is mounted, the pulley-hub, radially-movable rim-sections, a threaded shaft secured to the pulleyshaft, a cap on the threaded shaft, means to turn the cap relatively to the threaded shaft, thereby causing the cap to move longitudinally of the threaded shaft and connections between the cap and the rim-sections.
  • a shaft on which the pulley is mounted the pulley-hub, radially-movable rimsections, a sleeve on the shaft, links connecting the sleeve and rim-sections, a threaded shaft secured to the pulley-shaft, a cap on the threaded shaft, means to turn the cap relatively to the threaded shaft, causing the cap to move longitudinally of the threaded shaft, alnd connections between the cap and the s eeve.
  • a hub in combina- K tion, a hub, arms radiating therefrom having guides, a rim divided into sections, slotted arms radiating inwardly therefrom and slidable on the guides, a bolt extending through the slot of a rim-arm and engaging the corresponding hub-arm, a nuton the bolt adapted to tighten against the rim-arm, a shaft on Which the hub is keyed, a sleeve provided With a circumferential groove and also keyed on said shaft, adjustable links connecting said sleeve and rim-sections, a cap on the shaft, a block in the groove of the sleeve, a collar surrounding said sleeve and cap and connected to said cap and block, a threaded neck on the cap, a threaded shaft on the line of the aXis of the pulley-shaft and engaging the threaded neck of the cap, a Wheel secured to the cap-neck, and a nut

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Description

No. 88'?,=261. PATENTED NOV. 27, 1906.
G. s. 00X. EXPA-NSIBLB PULLBY.
APPLICATIGN FILED NOV. 2B. 1905.
THF Namvls E-rsRs ca.. WASHINGTON, v4 c.
UNITED STATES PATENT oEEIoE.
GEORGE S. COX` OF FITZWATERTOWN, PENNSYLVANIA, ASSIGNOR TO HIMSELF, AND IVALTER S. COX, OF PHILADELPHIA, PENNSYLVANIA, TRADING AS GEORGE S. COX AND BROTHER.
EXF'ANSIBLE PULLEY.
Specification of Letters Patent.
Patented Nov. 2'7, 1906.
Original application filed .Tune 2l, 1905, Serial No. 266,228. Divided and this application filed November 28, 1905. Serial No. 289,407.
To all whom. 'llt may concern:
Be it known that I, GEORGE S. Cox, a citi- Zen of the United States, residing at Fitzwatertown, county of Montgomery, and State of Pennsylvania, have invented a new and useful Improvement in Expansible Pulleys, of which the following is a full, clear, and exact description, reference being had to the accom? panying drawings, which form a part of this specification.
The object of the invention is to provide a construction whereby the diameter of a pulley may be expanded or contracted.
This application is a division of an application heretofore filed by me June 21, 1905, Serial No. 266,228, for patent for a drying or finishing machine for textile fabrics.
In the drawings, Figure 1 is a transverse sectional view of a pulley, its shaft, and the means for expanding and contracting it. 1Fig. 2 is a side elevation of one-half the pulg is a shaft on which the expansible and contractible pulley 'i is keyed. The pulley t' is constructed as follows: Extending radially inward from the sectional rim k are arms m, slidable in guides in arms n, projecting radially outward from the hub Z. The rimarms m are provided with radial slots 0. Z represents plates secured to the hub l and fitting over the rim-arms m. p represents tap-bolts extending through the slots and engaging bolt-holes in the hub-arms n. represents nuts on the ends of bolts p. By tightening the nuts they are caused to bind firmly against the rim-arms m, thereby securing the rimarms m and hub-arms 'n together in their adjusted positions. By loosening the nuts the rim-arms, with their rim-sections, may be moved radially inwardly from the ex panded position shown, thereby contracting the pulley.
The rim-sections and rim-arms may be moved radially by hand but to secure nice adjustments I prefer to employ the following mechanism: u is a sleeve keyed on shaft g. Pivoted at one end to the rim-arms m and at the other end to the sleeve u are links, each composed of the sections 1^ s, screw-threaded at their inner ends and connected together by means of a threaded sleeve t, thereby enabling the lengthof the link to be varied. Loose on ,washer w.
the shaft g is a cap o, the sleeved portion of which is separated from the sleeve u by a is a collar overlapping and encircling both sleeve u, and cap o. 'y is a bolt by means of which collar w is secured to cap v. is a block or ring extending into an annular groove in sleeve u. 2 is a bolt by means of which collar w is secured to ring 10. 11 is a threaded shaft secured in the end of shaft g on the line of the latters axis. 12 is a handwheel keyed on the neck 13 of cap o.
By lturning the hand-wheel 12 the cap n is rotated and at the same time fed forwardly or backwardly on the threaded shaft 11 and shaft g. This necessarily imparts a corresponding advancing or receding motion to the sleeve u, but without turning the same, ring 10 merely turning in its groove. This movement of sleeve u. through links r s t moves rim-sections outwardly or inwardly,
thereby expanding or contracting the pulley i. Prior to this operation the nuts g of the tap-bolts are of course loosened and subsequently tightened to hold the rim-sections and rim-arms in their adjusted positions. In order to hold the foregoing parts stationary relatively to each other during the operation of the machine, a nut 14 on the threaded shaft 13 is tightened against the hand-wheel 12.
Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is
1. In an expansible pulley, in combination, a shaft on which the pulley is mounted, the pulley-hub, radially-movable rim-sections, a threaded shaft secured to the pulleyshaft, a cap on the threaded shaft, means to turn the cap relatively to the threaded shaft, thereby causing the cap to move longitudinally of the threaded shaft and connections between the cap and the rim-sections.
2. In an expansible pulley, in combination, a shaft on which the pulley is mounted, the pulley-hub, radially-movable rimsections, a sleeve on the shaft, links connecting the sleeve and rim-sections, a threaded shaft secured to the pulley-shaft, a cap on the threaded shaft, means to turn the cap relatively to the threaded shaft, causing the cap to move longitudinally of the threaded shaft, alnd connections between the cap and the s eeve.
IOO
tions, a grooved sleeve keyed on the shaft,
links connecting the sleeve and rim-sections,
'a cap on the shaft, a block in the groove, a
collar connected to the cap and block, a threaded shaft secured to the pulley-shaft and engaged by the cap and means to turn the cap relatively to the threaded shaft, thereby causing the cap to move longitudinally of the shaft and threaded shaft and imparting a corresponding longitudinal movement to the sleeve Without rotating the same.
4. In an eXpansible pulley, in combina- K tion, a hub, arms radiating therefrom having guides, a rim divided into sections, slotted arms radiating inwardly therefrom and slidable on the guides, a bolt extending through the slot of a rim-arm and engaging the corresponding hub-arm, a nuton the bolt adapted to tighten against the rim-arm, a shaft on Which the hub is keyed, a sleeve provided With a circumferential groove and also keyed on said shaft, adjustable links connecting said sleeve and rim-sections, a cap on the shaft, a block in the groove of the sleeve, a collar surrounding said sleeve and cap and connected to said cap and block, a threaded neck on the cap, a threaded shaft on the line of the aXis of the pulley-shaft and engaging the threaded neck of the cap, a Wheel secured to the cap-neck, and a nut on the threaded shaft engaging said Wheel.
In testimony of Which invention I have hereunto set my hand, at Philadelphia.I on this 20th day of November, 1905.
GEORGE S. COX.
Witnesses M. M. HAMILTON, THORNLEY B. Woon.
US289407A 1905-06-21 1905-11-28 Expansible pulley. Expired - Lifetime US837261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US289407A US837261A (en) 1905-06-21 1905-11-28 Expansible pulley.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26622805A US891914A (en) 1905-06-21 1905-06-21 Drying and finishing machine for textile fabrics.
US289407A US837261A (en) 1905-06-21 1905-11-28 Expansible pulley.

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