US37473A - Improvement in pitmen - Google Patents
Improvement in pitmen Download PDFInfo
- Publication number
- US37473A US37473A US37473DA US37473A US 37473 A US37473 A US 37473A US 37473D A US37473D A US 37473DA US 37473 A US37473 A US 37473A
- Authority
- US
- United States
- Prior art keywords
- pitman
- improvement
- iron
- pitmen
- head
- 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
- 229910001018 Cast iron Inorganic materials 0.000 description 10
- 210000003128 Head Anatomy 0.000 description 10
- 229910000754 Wrought iron Inorganic materials 0.000 description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 8
- 230000000875 corresponding Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/026—Constructions of connecting-rods with constant length made of fibre reinforced resin
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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
- Y10T74/21—Elements
- Y10T74/2142—Pitmans and connecting rods
Definitions
- the head A is made of cast-iron. It is provided with an eye, B, in which the wrist-pin 4or crank from which the pitman derives its motion plays, and an oil-cup, O, from which to lubricate it. Two pins or dowels, a, are likewise cast upon the head.
- the arm D ot' the pitman is of wrought-iron,and provided with a projection, E, which hooksinto the eye of thecutter-bar to driveit.
- the arm is pierced with holes corresponding with the pins a, which take into them.
- the head and arm are united by a screw-bolt and nut, F, by which arrangement the two can readily be separated, when desired, for replacement or repair ot any broken part.
- the castiron resists friction better than wrought-iron, and is besides less costly, the advantages oi'my im provement are obvious.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Farming Of Fish And Shellfish (AREA)
Description
UNITED STATES PATENT OFFICE.
FREEMAN GRAHAM, OF ROOKFORD, ILLINOIS, ASSIGNOR TO RALPH EMER- SON, JR., OF SAME PLACE.
IMPROVEMENTIN PI'TM EN.
Specification forming part of Letters Patent N0. 37,473, dated January 20, 1803.
1b all whom it may concern Be it known that I, FREEMAN GRAHAM, of Rockford, in the county of Winnebago and State of Illinois, have invented a new and useiul Improvement in the Pitman, of which the following is a full,clear, and exact description, reference being had to the accompanying drawings, which make part ot this specification, and in which- Figure l represents a plan or top view of a pitman embracing my improvement, and Fig. 2 a vertical longitudinal section through the same at the line .r a0 of Fig. 1.
In a pitman to which arapid vibration is imparted the head or eye into which the Wristpin or crank is inserted if made of wroughtironis more liable to cut out rapidly than i'f made ot' cast-iron, besides being more costly, while were the whole pitman made of castiron it would be too weak to resist the strains to which it is subjected while in operation unless made to'o heavy for successful practical operation.
It is the object of my invention to provide a pitman which shall combine the qualitiesof cheapness,lightness, durability, and strength, while avoiding the defects of those composed entirely of one kind of metal; and to these ends my improvement consists in constructing that portion of the pitman upon which the strain comes of wrought-iron, while that portion exposed to rubbing contact is of castiron.
The accompanying drawings show my improvement as adapted for use in a harvestingmachine, for which purpose it is more especially designed. y
The head A is made of cast-iron. It is provided with an eye, B, in which the wrist-pin 4or crank from which the pitman derives its motion plays, and an oil-cup, O, from which to lubricate it. Two pins or dowels, a, are likewise cast upon the head. The arm D ot' the pitman is of wrought-iron,and provided with a projection, E, which hooksinto the eye of thecutter-bar to driveit. The armis pierced with holes corresponding with the pins a, which take into them. The head and arm are united by a screw-bolt and nut, F, by which arrangement the two can readily be separated, when desired, for replacement or repair ot any broken part. As the castiron resists friction better than wrought-iron, and is besides less costly, the advantages oi'my im provement are obvious.
What I claim as my invention, and desire to secure by Letters Patent, is-
A pitman composed ot' acast-iron head to sustain friction and a wrought-iron arm to resist strains, when constructed and combined substantially in the manner described.
In testimony whereof I have hereunto subscribed my name.
FREEMAN GRAHAM.
Witnesses PORTER SHELDON, WM. A. TALcoTT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US37473A true US37473A (en) | 1863-01-20 |
Family
ID=2107050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US37473D Expired - Lifetime US37473A (en) | Improvement in pitmen |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US37473A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030026891A1 (en) * | 2000-10-30 | 2003-02-06 | Sru Biosystems, Llc | Method of making a plastic colorimetric resonant biosensor device with liquid handling capabilities |
| US20030032039A1 (en) * | 2000-10-30 | 2003-02-13 | Sru Biosystems, Llc | Method and apparatus for detecting biomolecular interactions |
| US20030059855A1 (en) * | 2000-10-30 | 2003-03-27 | Sru Biosystems, Llc | Method and instrument for detecting biomolecular interactions |
| US20030068657A1 (en) * | 2000-10-30 | 2003-04-10 | Sru Biosystems Llc | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor |
| DE10219344A1 (en) * | 2002-04-30 | 2003-11-20 | Fujitsu Siemens Computers Gmbh | Data backup method for a mobile or desktop PC in which data, including system data, is stored to a backup device so that in the event of system failure data and system environment can be restored to a replacement computer |
| US20040132214A1 (en) * | 2000-10-30 | 2004-07-08 | Sru Biosystems, Llc | Label-free methods for performing assays using a colorimetric resonant optical biosensor |
| US20050220408A1 (en) * | 2004-02-19 | 2005-10-06 | Cyvera Corporation | Optical identification element having non-waveguide photosensitive substrate with diffraction grating therein |
| US20060057707A1 (en) * | 2000-10-30 | 2006-03-16 | Sru Biosystmes, Inc. | Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements |
-
0
- US US37473D patent/US37473A/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030026891A1 (en) * | 2000-10-30 | 2003-02-06 | Sru Biosystems, Llc | Method of making a plastic colorimetric resonant biosensor device with liquid handling capabilities |
| US20030032039A1 (en) * | 2000-10-30 | 2003-02-13 | Sru Biosystems, Llc | Method and apparatus for detecting biomolecular interactions |
| US20030059855A1 (en) * | 2000-10-30 | 2003-03-27 | Sru Biosystems, Llc | Method and instrument for detecting biomolecular interactions |
| US20030068657A1 (en) * | 2000-10-30 | 2003-04-10 | Sru Biosystems Llc | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor |
| US20040132214A1 (en) * | 2000-10-30 | 2004-07-08 | Sru Biosystems, Llc | Label-free methods for performing assays using a colorimetric resonant optical biosensor |
| US20060057707A1 (en) * | 2000-10-30 | 2006-03-16 | Sru Biosystmes, Inc. | Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements |
| DE10219344A1 (en) * | 2002-04-30 | 2003-11-20 | Fujitsu Siemens Computers Gmbh | Data backup method for a mobile or desktop PC in which data, including system data, is stored to a backup device so that in the event of system failure data and system environment can be restored to a replacement computer |
| US20050220408A1 (en) * | 2004-02-19 | 2005-10-06 | Cyvera Corporation | Optical identification element having non-waveguide photosensitive substrate with diffraction grating therein |
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