US179746A - Improvement in pulleys - Google Patents
Improvement in pulleys Download PDFInfo
- Publication number
- US179746A US179746A US179746DA US179746A US 179746 A US179746 A US 179746A US 179746D A US179746D A US 179746DA US 179746 A US179746 A US 179746A
- Authority
- US
- United States
- Prior art keywords
- pulleys
- pulley
- disks
- lever
- extensible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000003292 diminished Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 230000003247 decreasing Effects 0.000 description 2
Images
Classifications
-
- 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
- F16H9/12—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 built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
- F16H9/16—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 built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
Definitions
- the object of my invention is to provide means for increasing and decreasing the speed of mechanisms operated through the agency of pulleys without the use of countershafting or nests of pulleys.
- This pulley consists of two concentric conical frustums, having their sides of alternate lingers and slots, said frustums being arranged upon a shaft with their truncated portions opposite each other, so that, as they approach, the fingers of one cone enter the slots of the other-the closer the contact the greater circumferential bearing for the belting, and vice versa.
- the cones ⁇ are operated to approach and recede by suitable devices.
- FIG. 4I have hereinafter fully set forth the operation of my extensible pulley, and its use in connection with a lathe, and illustrated in the accom panying drawings, in which- Y Figure l represents a plan view of the pul- Ieys, and their operating devices.
- Fig. 2 is a side elevation of the same.
- Fig. 3 is a plan view of the pulleys, showing a modification of the operating devices.
- Fig. 4 is a vertical longitudinal section of the same.
- Fig. 5 represents the application ofmy invention to a lathe, showing the connection between the power transmitted from the main shaft through the pulleys to the lathe.
- a A will refer to the disks or conical frustums, secured on the shafts B B in any suitable manner, These disks have in their sides alternate slots c and fingers d.
- Engaging with the disks A A are the disks C C', on which are formed grooved hubs or collars D.
- the disks C C are operated to advance and recede by means of semicircular yokes E, which engage and partially fit in the grooves of collars D D, and-are joined by the lever-arm F fulcrumed at its center on an upright standard, G, fixed to the stand supporting or carrying the uprights, on which are journaled the pulley-shafts.
- EX- tending from and fastened to the arm is a lever, H, at the outer end of which is formed a handle used to move the lever backward and forward.
- the lever H is supported on and clamped to a plate, I, said plate having in it a segmental slot, e, through which, from the under side, passes the screw-threaded portion of a thumb-screw, K, and then enters the female threads of the lever at f.
- the operator When p it becomes necessaryv to change or alter the speed of the pulley, the operator catches the handle of the lever with one hand, using the other hand to move the clamping thumb-screw that holds t-he lever in the desired position, and moves it to the right or left, causing the semieircular yoke on one end of the arm to push the lingers of its conical frustum C or C', as the ease may be, into the slots of its engaging frustum, thereby making the circumferential bearing for the belting larger, while at the same time the other semicircular yoke is pulling ⁇ its frustum from its engagingdisk, causing its diameter to become smaller, thereby making the circumferential grooved bearing-surface of one pulley larger and the other smaller, thus causing the speed to be increased or diminished at the pleasure of the operator.
- a A will refer to the disks or conical frustums secured on the shaft-B by means of the set-screws a.V These disks have their sides of alternate slots c and tingersd.
- Engaging with the disks AA are the disks C C', joined together and operated by means of the sleeve or collar D.
- This collar D is provided with a circular rack, lt, whichV L fulcrumed at q.
- the leverl or switch L which is operated from its outer end, can be held in any position at or on 'the segmental indicating-disk or slotted semicircular yoke Y.
- the operator When it becomes necessary to change or alter the speed of the pulleys, the operator catches the lever at its outer end, Which projects to- Ward him, with one hand, using the other hand to move the clamping-screw that holds the lever in the desired position, and movesit to the right or left, causing the pinion to operate the cogged sleeve carrying the slotted engaging-disks, thereby making the fingers of one disk to enter the slots of the other at one end of the shaft, While at the other end they are receding or leaving each other, thereby making the circumferential grooved bearing of one pulley larger and the other smaller, thus causing the speed to be increased or diminished at the pleasure of the operator.
Description
2 Sheets-Sheet 1.
W. A. WALES.
PULLEY.
Patented Ju1y11,1876.
l N.179,74e.
I'll
Bbl
INVENTOR Wam.
WITNESSES .Attorney 2 Sheets-Shet 2.
W. A. WALES. PULLEY.
Patented July 11, 1876.
fmfeno 7*.- MOM QM A WJ@- #my mf m WILLIAM A. WALES, OF JERSEY CITY,
vPACLENr OFFICE.
NEW JERSEY, ASSIGNOR TO GEORGE E. LINCOLN, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT ll\l PULLEYS.
v Specification forming part of Letters Patent No. 179,746, dated July 11, `1876 application filed June 2, 1876.
To all whom it may concern:
Be it known that I, WILLIAM A. WALES, of
Jersey City, in the county of Hudson and.
State of New Jersey, have invented certain new and useful Improvements in Pulleys; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.
The object of my invention is to provide means for increasing and decreasing the speed of mechanisms operated through the agency of pulleys without the use of countershafting or nests of pulleys. In carrying out this object l have invented a new grooved pulley,
which is extensible in itself, to afford a lesser or greater circumferential bearin g for the belting, as the speed is to be increased or diminished. This pulley consists of two concentric conical frustums, having their sides of alternate lingers and slots, said frustums being arranged upon a shaft with their truncated portions opposite each other, so that, as they approach, the fingers of one cone enter the slots of the other-the closer the contact the greater circumferential bearing for the belting, and vice versa. The cones `are operated to approach and recede by suitable devices. 4I have hereinafter fully set forth the operation of my extensible pulley, and its use in connection with a lathe, and illustrated in the accom panying drawings, in which- Y Figure l represents a plan view of the pul- Ieys, and their operating devices. Fig. 2 is a side elevation of the same. Fig. 3 is a plan view of the pulleys, showing a modification of the operating devices. Fig. 4 is a vertical longitudinal section of the same. Fig. 5 represents the application ofmy invention to a lathe, showing the connection between the power transmitted from the main shaft through the pulleys to the lathe.
When my extensible pulley is used, as shown in the drawings, A A will refer to the disks or conical frustums, secured on the shafts B B in any suitable manner, These disks have in their sides alternate slots c and fingers d. Engaging with the disks A A are the disks C C', on which are formed grooved hubs or collars D. The disks C C are operated to advance and recede by means of semicircular yokes E, which engage and partially fit in the grooves of collars D D, and-are joined by the lever-arm F fulcrumed at its center on an upright standard, G, fixed to the stand supporting or carrying the uprights, on which are journaled the pulley-shafts. EX- tending from and fastened to the arm is a lever, H, at the outer end of which is formed a handle used to move the lever backward and forward. The lever H is supported on and clamped to a plate, I, said plate having in it a segmental slot, e, through which, from the under side, passes the screw-threaded portion of a thumb-screw, K, and then enters the female threads of the lever at f. When p it becomes necessaryv to change or alter the speed of the pulley, the operator catches the handle of the lever with one hand, using the other hand to move the clamping thumb-screw that holds t-he lever in the desired position, and moves it to the right or left, causing the semieircular yoke on one end of the arm to push the lingers of its conical frustum C or C', as the ease may be, into the slots of its engaging frustum, thereby making the circumferential bearing for the belting larger, while at the same time the other semicircular yoke is pulling` its frustum from its engagingdisk, causing its diameter to become smaller, thereby making the circumferential grooved bearing-surface of one pulley larger and the other smaller, thus causing the speed to be increased or diminished at the pleasure of the operator.
When my extensible pulley is used, as shown in the modification in the drawings, Sheet 2, Figs. 3, 4, and 5, A A will refer to the disks or conical frustums secured on the shaft-B by means of the set-screws a.V These disks have their sides of alternate slots c and tingersd. Engaging with the disks AA are the disks C C', joined together and operated by means of the sleeve or collar D. This collar D is provided with a circular rack, lt, whichV L fulcrumed at q. The leverl or switch L, which is operated from its outer end, can be held in any position at or on 'the segmental indicating-disk or slotted semicircular yoke Y. When it becomes necessary to change or alter the speed of the pulleys, the operator catches the lever at its outer end, Which projects to- Ward him, with one hand, using the other hand to move the clamping-screw that holds the lever in the desired position, and movesit to the right or left, causing the pinion to operate the cogged sleeve carrying the slotted engaging-disks, thereby making the fingers of one disk to enter the slots of the other at one end of the shaft, While at the other end they are receding or leaving each other, thereby making the circumferential grooved bearing of one pulley larger and the other smaller, thus causing the speed to be increased or diminished at the pleasure of the operator.
I do not Wish to confine myself to any par ticular method of operating the extensible pulleys, since my invention consists especially in the extensible pulley itself', carrying, of-
Publications (1)
Publication Number | Publication Date |
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US179746A true US179746A (en) | 1876-07-11 |
Family
ID=2249152
Family Applications (1)
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US179746D Expired - Lifetime US179746A (en) | Improvement in pulleys |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504022A (en) * | 1982-05-05 | 1985-03-12 | Stang Hans Peter | Thread feed mechanism and method for textile machines |
-
0
- US US179746D patent/US179746A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504022A (en) * | 1982-05-05 | 1985-03-12 | Stang Hans Peter | Thread feed mechanism and method for textile machines |
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