US75774A - Improvement in harvesters - Google Patents
Improvement in harvesters Download PDFInfo
- Publication number
- US75774A US75774A US75774DA US75774A US 75774 A US75774 A US 75774A US 75774D A US75774D A US 75774DA US 75774 A US75774 A US 75774A
- Authority
- US
- United States
- Prior art keywords
- wheel
- cams
- improvement
- harvesters
- driving
- 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
- 241001124569 Lycaenidae Species 0.000 title description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000994 depressed Effects 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 239000002699 waste material Substances 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/16—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms 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
- Y10T74/18288—Cam and lever
Definitions
- Figure 2 is an elevation of the driving-Wheel shaft, showing the position of the driving-wheel,reciprocating lever, and tightening-nuts upon it.
- A iig. 1, is the driving-wheel, containing a succession of short cams, placed in the side, at or near the circumference. These cams are seen at O, which isa representa-tion of. the hand, tire, or tread of the wheel,
- L is the shaft, 'ni m thejournals for bearings, A the driving-wheel, E the fulcrum-block, D the reciprocating lever, g g the-fulcrum-pins; K and II are nuts Working 0n a screw-thread eut in the shaft.
- the nut H is screwed against the pivot-block F, iig. 1, holding the lever D D in position, with ⁇ the rollers c c pressing against the face of thel cams n n n n.
- the required amount of pressure is given by operating the nut H, as also any wearing away of parts is remedied by moving this nut.
- 7c is the tightening-nut, holding the mechanism securely in place, by being screwed firmly on the nut II.
- the cutting-bar can be thrown out of gear by turning back the nuts K and II until the rollers e c are removed from the track ⁇ of the cams.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rehabilitation Tools (AREA)
Description
gufi-12h taf atnt @Hire Letters .Patent'Nm 7 5,774, dated Ilfarch l24, 1868.
IMPROVEMENT IN HARVESTERS.
LLa- Straub referrer tu in tigen tetter' uteut ma uniting mrt of. tlg snm. l
Beit known that I,AISRAEL LANCASTER, of Baltimore, in the county of Baltimore, and State of Maryland, have inventeda new and useful Improvement in Reaping or Harvesting-IVI-acliines; and I do 4hereby declare that the following is-u full, clear, and-exact-description of the construction and operation of the same, reference being had to the annexed drawings, making apart of this specification, in which-- Figure 1 is an elevation of the driving-wheel and the reciprocating lever, which lever is shown in longitudinal section. I-
Figure 2 is an elevation of the driving-Wheel shaft, showing the position of the driving-wheel,reciprocating lever, and tightening-nuts upon it. A
In that class of reaping-maehines in which the cuttingbar is driven by means of a succession of short cams placed in the side or circumference of the master-wheel, there is an objection arising frourthe lost motion, between the cams andthe roller, the-'different bearings, and the vibration of the frame. As great rapidity of stroke is required, amounting to eight hundred per minute, the cam movement ceases tobe a cam movement, but4 resembles a succession of strokes made with a hammer, the cutting-bar being knocked from oneextremity of the stroke to the other, causing an excessivejarring of' the whole machine, and a waste of one-half of the whole power required to drive the cutting-bar, as experiment shows.
This rough movement has prevented the use of this'quality of machine almost entirely, although much more simple in its construction than those vgenerally in use. v
I overcome this'diiiculty, effectually preventing any lost motion whatever, as follows:
A, iig. 1, is the driving-wheel, containing a succession of short cams, placed in the side, at or near the circumference. These cams are seen at O, which isa representa-tion of. the hand, tire, or tread of the wheel,
extended in a straight line.- L is the shaft; F, the pivot-hlck'; E,:"the' vralorum-block, forming a part of the reciprocating lever D gg are pins passing throughthefuleinmbloclrE, and securely fastened into the pivotblock F; e c are friction-rollers, placed ou the lever D D, anvd'wvorkingvon the faeeof the ca'ms n n. 1L 11.; B is the cutting-bar, through an eye in the shank of which the levefDD-passes. An odd number of cams is placed on the wheel, so that-when' the roller c is on thepoint 29the roller e is in the depressed pzut S. As the drivingwheel revolves, the movement of the cutting-bar is obvious. At' Figure 2, L is the shaft, 'ni m thejournals for bearings, A the driving-wheel, E the fulcrum-block, D the reciprocating lever, g g the-fulcrum-pins; K and II are nuts Working 0n a screw-thread eut in the shaft. The nut H is screwed against the pivot-block F, iig. 1, holding the lever D D in position, with `the rollers c c pressing against the face of thel cams n n n n. The required amount of pressure is given by operating the nut H, as also any wearing away of parts is remedied by moving this nut. 7c is the tightening-nut, holding the mechanism securely in place, by being screwed firmly on the nut II. i
The cutting-bar can be thrown out of gear by turning back the nuts K and II until the rollers e c are removed from the track` of the cams. Y
What I claim as my invention, and desire to secure by Letters Patent,.is
The method of-holding the reciprocating lever D'D up to its work, by means of nuts screwing on the driving.
wheel shaft, substantially as described.
I. LANCASTER.
Witnesses:
M. LANoAsTER,
F. W. Twin/mn.
Publications (1)
Publication Number | Publication Date |
---|---|
US75774A true US75774A (en) | 1868-03-24 |
Family
ID=2145278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US75774D Expired - Lifetime US75774A (en) | Improvement in harvesters |
Country Status (1)
Country | Link |
---|---|
US (1) | US75774A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090274022A1 (en) * | 2005-12-22 | 2009-11-05 | Matsushita Electric Industrial Co., Ltd. | Optical disc device |
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0
- US US75774D patent/US75774A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090274022A1 (en) * | 2005-12-22 | 2009-11-05 | Matsushita Electric Industrial Co., Ltd. | Optical disc device |
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