US248507A - James robertson - Google Patents
James robertson Download PDFInfo
- Publication number
- US248507A US248507A US248507DA US248507A US 248507 A US248507 A US 248507A US 248507D A US248507D A US 248507DA US 248507 A US248507 A US 248507A
- Authority
- US
- United States
- Prior art keywords
- pulley
- wheel
- belt
- recess
- robertson
- 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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- 241000282472 Canis lupus familiaris Species 0.000 description 4
- 230000002093 peripheral Effects 0.000 description 4
- 210000000088 Lip Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009958 sewing Methods 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
Definitions
- This invention relates to that class of devices which are employed for facilitating the replacement of the belt upon the usual pulleywheel of a sewing or other machine.
- a pulley-wheel Prior to my invention a pulley-wheel has been provided with a tooth or finger formed with an out-turned portion or lip presenting a spiral face adapted to catch and direct the belt into place upon the pulley as the latteris turned by means of a handle with which it is provided.
- a pulley-wheel has also been provided with a pivoted dog having one edge formed with a recess for engaging a belt and retaining it in contact with pulley; and in another instance the belt wheel or pulley has been provided with a sliding or turning spring hook or button swinging over the groove of the Wheel, so as to enable the operator to run on the belt without bending down and carrying the belt with the hand around the wheel.
- the letter A designates the fly-wheel, and B the ordinary scored or grooved pulley-wheel, of
- a sewing-machine a sewing-machine.
- These two wheels are preferably cast in one piece, although, if desired, they can beform ed separatelyand then secured together in any suitable way.
- a notch or recess, C is formed in one of the peripheral flanges of the pulley-wheel, and has one ofits walls, 0, somewhat obliqued to the plane of the pulley,and its opposite wall, 0 made either hook-shaped or straight and at or about right angles to the plane of said pulley, so that the disengaged belt can be readily caught on the wall 0 in the first instance, and then, as the pulley is turned, it will slip over the oblique wall 0 and automatically run onto the pulley.
- the belt automatically assumes its place upon the periphery of the pulley without requiring any further manipulation than engaging the same in a recess, the pulley being provided with a handle, so that it can be turned after the belt-has been caught in the recess, in order to throw the belt onto the pulley.
- pulley-wheel With the notch or recess, and also that the pulley-wheel has no dogs or projections that can be bent, broken oft, or otherwise injured.
- the belt can be readily applied to or removed from the pulley-wheel, which will be especially useful in sewing-machines and in small machinery generally, where it is often found desirable to throw on or off a belt.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
(Model) J. ROBERTSON.
DEVICE FOR RUNNING 0N BELTS T0 MACHINERY. No. 248,507. Patented Oct. 18,1881.
N, PETERS. Pholoulhngrapbfir Walhvnglnn 0 C UNITED STATES PATENT OFrrcE.
JAMES ROBERTSON, OEMIDDLETOWN, CONNECTICUT, ASSIGNOR TO THE VICTOR SEWING MACHINE COMPANY, OF SAME PLACE.
DEVICE FOR RUNNING ON BELTS TO MACHINERY.
SPECIFICATION forming part of Letters Patent No. 248,507, dated October 18, 18 81. Application filed September 17, 1881. (Model) To all whom it may concern:
Be it known that I, JAMES ROBERTSON, a citizen of the United States, formerly of Florence, Massachusetts, but now residing at Middletown, in the county of Middlesex and State of Connecticut, haveinvented new and useful Improvements in Devices for Running on Belts to lVIachinery of which the following is a speciflcation.
This invention relates to that class of devices which are employed for facilitating the replacement of the belt upon the usual pulleywheel of a sewing or other machine.
Prior to my invention a pulley-wheel has been provided with a tooth or finger formed with an out-turned portion or lip presenting a spiral face adapted to catch and direct the belt into place upon the pulley as the latteris turned by means of a handle with which it is provided. A pulley-wheel has also been provided with a pivoted dog having one edge formed with a recess for engaging a belt and retaining it in contact with pulley; and in another instance the belt wheel or pulley has been provided with a sliding or turning spring hook or button swinging over the groove of the Wheel, so as to enable the operator to run on the belt without bending down and carrying the belt with the hand around the wheel.
It is the object of my invention to simplify the means employed for running the belt onto the scored pulley-wheel; and to such end it consists in combining with the fly-wheel a scored pulley-wheel having a notch or recess formed in one of its peripheral flanges, said notch having a straight or hook-shaped wall for engaging the belt, and an opposite inclined wall for allowing the belt to slip over the flange and pass into the pulley-groove, in the manner hereinafter described and illustrated in the accompanying drawings, in which- Figure 1 is a side View of the fly-wheel and the pulley-wheel provided with my improvement. Fig. 2 is a view of the faces of said wheels; and Fig.3 is a side View with the belt caught in the recess of the pulley-wheel.
The letter A designates the fly-wheel, and B the ordinary scored or grooved pulley-wheel, of
' a sewing-machine. These two wheels are preferably cast in one piece, although, if desired, they can beform ed separatelyand then secured together in any suitable way. A notch or recess, C, is formed in one of the peripheral flanges of the pulley-wheel, and has one ofits walls, 0, somewhat obliqued to the plane of the pulley,and its opposite wall, 0 made either hook-shaped or straight and at or about right angles to the plane of said pulley, so that the disengaged belt can be readily caught on the wall 0 in the first instance, and then, as the pulley is turned, it will slip over the oblique wall 0 and automatically run onto the pulley.
The belt automatically assumes its place upon the periphery of the pulley without requiring any further manipulation than engaging the same in a recess, the pulley being provided with a handle, so that it can be turned after the belt-has been caught in the recess, in order to throw the belt onto the pulley.
It will be seen that it will involve no extra expense to cast the pulley-wheel with the notch or recess, and also that the pulley-wheel has no dogs or projections that can be bent, broken oft, or otherwise injured.
The belt can be readily applied to or removed from the pulley-wheel, which will be especially useful in sewing-machines and in small machinery generally, where it is often found desirable to throw on or off a belt.
What I claim is- The combination, with the tly-wheel, of the pulley-wheel carried thereby, and having a recess formed in its flanged rim for engaging the belt, in order to automatically throw the same onto the wheel as the latter is turned, one wall of said recess being formed to hold the belt, and the opposite wall being formed to allow the belt to automaticallyslip over the same and run onto the wheel, substantially as described.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
JAMES ROBERTSON.
IVitnesses:
S. GLEAVELAND, J r., GEO. M. PRATT.
Publications (1)
Publication Number | Publication Date |
---|---|
US248507A true US248507A (en) | 1881-10-18 |
Family
ID=2317828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US248507D Expired - Lifetime US248507A (en) | James robertson |
Country Status (1)
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US (1) | US248507A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090097332A1 (en) * | 2007-10-10 | 2009-04-16 | Samsung Electronics Co., Ltd. | Semiconductor memory device |
US10132390B2 (en) * | 2016-11-15 | 2018-11-20 | Bruce Stanley Gunton | Drive arrangement |
-
0
- US US248507D patent/US248507A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090097332A1 (en) * | 2007-10-10 | 2009-04-16 | Samsung Electronics Co., Ltd. | Semiconductor memory device |
US10132390B2 (en) * | 2016-11-15 | 2018-11-20 | Bruce Stanley Gunton | Drive arrangement |
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