US174093A - Improvement in treadles - Google Patents
Improvement in treadles Download PDFInfo
- Publication number
- US174093A US174093A US174093DA US174093A US 174093 A US174093 A US 174093A US 174093D A US174093D A US 174093DA US 174093 A US174093 A US 174093A
- Authority
- US
- United States
- Prior art keywords
- pedal
- treadles
- motion
- improvement
- treadle
- 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
- 239000000203 mixture Substances 0.000 description 6
- 210000002683 Foot Anatomy 0.000 description 4
- 210000003423 Ankle Anatomy 0.000 description 2
- 210000000474 Heel Anatomy 0.000 description 2
- 210000003205 Muscles Anatomy 0.000 description 2
- 238000007011 Robinson annulation reaction Methods 0.000 description 2
- 210000003371 Toes Anatomy 0.000 description 2
- 244000221110 common millet Species 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000725 suspension Substances 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
-
- 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
-
- 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
- the treadle is represented in perspective in the accompanying drawing.
- A is the pedal or part upon which the feet are placed.
- F is a fly-wheel, with a crankpin, L, which receives'motion from Athrough the connecting-pieces B D E.
- O and B are rigidly and permanently joined at T, so as to form afirm U-shaped piece.
- B is pivoted at H, and G at l, to the'main frame-work of the machine, so that the U-shaped part B T O can swing about H I as an axis of motion.
- B is extended above H to K, and thence connecled with the crank-pin L by means of the pitman E. By placing the pivots H and I higher or lower, the extent ofswing of A may be made greater or less.
- the pedal A is'mounted upon the horizontal or bottom part of the U-shaped piece, so as to rock freely as follows: P is a collar upon G, as shown, with an extension to one side, so as to receive the pin N.
- This pin projects to one side ofP and enters a suitable hole in the pedal to form a bearing, and allow freedom of rocking motion.
- the other side of the pedal - is likewise suspended by the pin 0, the latter being secured to a collar similar to P or directly to B.
- the object of thus suspendingA upon small pivots is to decrease the friction of A upon its bearings to a minimum, this object being realized by making Nand 0 very in the position .of best advantage for D, and
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
Description
'S. W. ROBINSON.
TREADLE;
Patented Feb. 29,1876.
.dmrrwy UNITED STATES PATENT QFFIOE.
STILLMAN W. ROBINSON, OF OHAMPAIGN, ILLINOIS.v
IMPROVEMENT m TREADLES.
Specification forming part of Letters Patent No. 174,093, dated February 29, 1876; application filed September 17, 1875.
To all whom it may concern:
Be it known that I, STILLMAN W. ROBIN- SON, of Ohampaign, county of Ohampaign, State of Illinois, have invented certain Improvements in Treadles, of. which the following is a specification My'in-vention relates to such a combination of pieces connecting the pedal of a treadle device with the crank as shall be entirely free from dead-points, and as shall increase the range of motion of the pedal to any extent desired, and also as shall give action to all the muscles of the leg and ankle, thus enabling the operator to develop much more power than with the ordinary treadle, and also to stop and start the machine at any possible point desired.
The treadle is represented in perspective in the accompanying drawing.
A is the pedal or part upon which the feet are placed. F is a fly-wheel, with a crankpin, L, which receives'motion from Athrough the connecting-pieces B D E. O and B are rigidly and permanently joined at T, so as to form afirm U-shaped piece. B is pivoted at H, and G at l, to the'main frame-work of the machine, so that the U-shaped part B T O can swing about H I as an axis of motion. B is extended above H to K, and thence connecled with the crank-pin L by means of the pitman E. By placing the pivots H and I higher or lower, the extent ofswing of A may be made greater or less. l
The pedal A is'mounted upon the horizontal or bottom part of the U-shaped piece, so as to rock freely as follows: P is a collar upon G, as shown, with an extension to one side, so as to receive the pin N. This pin projects to one side ofP and enters a suitable hole in the pedal to form a bearing, and allow freedom of rocking motion. The other side of the pedal -is likewise suspended by the pin 0, the latter being secured to a collar similar to P or directly to B. The object of thus suspendingA upon small pivots is to decrease the friction of A upon its bearings to a minimum, this object being realized by making Nand 0 very in the position .of best advantage for D, and
vice versa.
The motion of the pedal A in this treadle device is seen to be peculiar, causing either the toe or heel of the operator to describe a sort of an elliptical curve in which there are no stop and start points, which also shows the entire absence of dead-points. This freedom from dead-centers enables the operator to stop and start, as desired, at any possible position,
without touching the machinery by hand, a
matter of much importance in sewing-ma chines. It is further easily seen that the adjustment of the extentof rocking motion of A, and of the swinging of A, as above explained, is each independent of the other, the same being governed by the resistance to be overcome. Also, as the foot can act to give motion to F at all possible positions of the latter, the fly-wheel may be much lighter, thus reducing the friction upon its bearing.
to secure by Letters Patent, is- V l. The combination of the U-shaped part B T G and pitmen D and E, with thepedal A, all arranged as and for the purposes specified.
2. The combination, with pedal A, of the collar or collars P, and pins N O for relieving pedal A of friction of suspension, as and for the purpose set forth.
- STILLMAN W. ROBINSON.
What I claim as my invention, and desire Attest:
TH. J. SMITH, J. S. LOTHROP.
Publications (1)
Publication Number | Publication Date |
---|---|
US174093A true US174093A (en) | 1876-02-29 |
Family
ID=2243500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US174093D Expired - Lifetime US174093A (en) | Improvement in treadles |
Country Status (1)
Country | Link |
---|---|
US (1) | US174093A (en) |
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0
- US US174093D patent/US174093A/en not_active Expired - Lifetime
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