US172835A - Improvement in sewing-machine treadles - Google Patents
Improvement in sewing-machine treadles Download PDFInfo
- Publication number
- US172835A US172835A US172835DA US172835A US 172835 A US172835 A US 172835A US 172835D A US172835D A US 172835DA US 172835 A US172835 A US 172835A
- Authority
- US
- United States
- Prior art keywords
- sewing
- treadles
- improvement
- treadle
- machine
- 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
Links
- 210000002683 Foot Anatomy 0.000 description 6
- 230000036633 rest Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 241000490025 Schefflera digitata Species 0.000 description 2
- 210000003371 Toes Anatomy 0.000 description 2
- 210000000707 Wrist Anatomy 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000013707 sensory perception of sound Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
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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
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/40—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and oscillating motion
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- 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
- Y10T74/18184—Crank, pitman, and lever
Definitions
- This invention consists in the construction of a treadle for sewing-machines and other foot-power machinery, and in the means for hanging the same; and, also, in the combination of parts, as will be hereinafter more fully set forth.
- FIG. 2 is a cross-section of the treadle.
- Fig. 3 is a perspective view of the bar on which the treadles are hung.
- Fig. 4 is a cross-section through one of the pivots.
- A represents the top or table, and B B the side pieces, of a sewing-machine stand.
- 0 is the band-wheel, mounted upon a shaft
- This shaft is formed or provided with two cranks, a a, standing at right angles with each other, as shown, and connected by rods or'pitmen b b with the toe ends of the two treadles G G.
- treadlcs are constructed in the usual form, and are provided around their edges with upward-projecting flanges d d, as shown.
- each treadle On each side of each treadle is an upwardly and outwardly curved projection, h, which fits in the hollow in the side of the foot, forming, as it were, a rest and wedge for the foot, so as to keep the same in place on the treadle,
- the under sides of the projections h are hollowed out or recessed, as shown at i, and these recesses fit over tapering horizontal pivots m m, formed on the upper side of a bar or rod, E, which connects the lower portions of the side pieces B B.
- the treadle is thus suspended below its pivots, and the pivots being made tapering, the bearing is virtually at one point only on each side, or, in other words, the same as if hung on a knife-edge, thus reducing the friction to the smallest possible amount, and rendering the running of the machine very easy.
- this invention may equally as well be applied to a single treadle and a single crank or wrist pin. I prefer, however, to use it with wo cranks set at right angles with each other, as thereby the dead-centers are overcome.
- a treadle, Gr provided with the curved side rests or braces h h, substantially as and for the purposes herein set forth.
Description
L- T-URNER, deed; J. T. GRAHAM, Administrator. SEWING-MACHINE TREADLE;
Pate nted' Feb. 1, 1876.
No.17Z,835.
UNITED STATES PATENT OFFIE.
JOHN T. GRAHAM, OF BALTIMORE, MARYLAND, ADMINISTRATOR OF EDWARD J. TURNER, DECEASED.
IMPROVEMENT IN SEWING-MACHINE TREADLES.
Specification forming part of Letters Patent No. 172,835, dated February 1, 1876; application filed October 25, 1875.
To all whom it may concern Be it known that EDWARD J. TURNER, of Baltimore, in the county of Baltimore and State of Maryland, invented certain new and useful Improvements in Treadles for Sewing-Machines; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.
The nature of this invention consists in the construction of a treadle for sewing-machines and other foot-power machinery, and in the means for hanging the same; and, also, in the combination of parts, as will be hereinafter more fully set forth.
In order to enable others skilled in the art to which this invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which forms a part of this specification, and in which- Figure l is a perspective view of a sewingmachine stand embodying this invention. Fig. 2 is a cross-section of the treadle. Fig. 3 is a perspective view of the bar on which the treadles are hung. Fig. 4 is a cross-section through one of the pivots.
A represents the top or table, and B B the side pieces, of a sewing-machine stand.
0 is the band-wheel, mounted upon a shaft,
vD, having its hearings in the side pieces B B.
This shaft is formed or provided with two cranks, a a, standing at right angles with each other, as shown, and connected by rods or'pitmen b b with the toe ends of the two treadles G G.
These treadlcs are constructed in the usual form, and are provided around their edges with upward-projecting flanges d d, as shown.
On each side of each treadle is an upwardly and outwardly curved projection, h, which fits in the hollow in the side of the foot, forming, as it were, a rest and wedge for the foot, so as to keep the same in place on the treadle,
and prevent the foot from slipping backward or forward on the same.
The under sides of the projections h are hollowed out or recessed, as shown at i, and these recesses fit over tapering horizontal pivots m m, formed on the upper side of a bar or rod, E, which connects the lower portions of the side pieces B B.
The treadle is thus suspended below its pivots, and the pivots being made tapering, the bearing is virtually at one point only on each side, or, in other words, the same as if hung on a knife-edge, thus reducing the friction to the smallest possible amount, and rendering the running of the machine very easy.
Though I have shown this invention as applied to two treadles and two cranks, it may equally as well be applied to a single treadle and a single crank or wrist pin. I prefer, however, to use it with wo cranks set at right angles with each other, as thereby the dead-centers are overcome.
Having thus fully described this invention, what I claim as new, and desire to secure by Letters Patent, is
1. A treadle, Gr, provided with the curved side rests or braces h h, substantially as and for the purposes herein set forth.
2. The combination of a treadle, G, having curved side rests or braces h h, with recesses t on their under sides, and the horizontal tapering pivots m m, substantially as and for the purposes herein set forth.
3. The combination of the shaft D, having cranks a. a, the pitmen b b, flanged treadles G G, provided with the side rests h h, and the tapering pivots m m, all constructed substantially as and for the purposes herein set forth. In testimony that I claim the foregoing I have hereunto set my hand.
JNO. T. GRAHAM, Administrator of Edward J. Turner, deceased.
Witnesses:
J 0s. T. K. PLANT, WILLIs B. MAGRUDER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172835A true US172835A (en) | 1876-02-01 |
Family
ID=2242242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172835D Expired - Lifetime US172835A (en) | Improvement in sewing-machine treadles |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172835A (en) |
-
0
- US US172835D patent/US172835A/en not_active Expired - Lifetime
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