US109138A - Improvement in pitmen - Google Patents

Improvement in pitmen Download PDF

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US109138A
US109138A US109138DA US109138A US 109138 A US109138 A US 109138A US 109138D A US109138D A US 109138DA US 109138 A US109138 A US 109138A
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Prior art keywords
pitmen
improvement
pitman
iron
rod
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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
    • 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
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • 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
    • Y10T74/216—Bearings, adjustable

Definitions

  • My invention consists of' a peculiar construction, nrrangement, and combination of parts composing 'a pitman, the parts being formed and connected in such a mannerI as to oppose compressive strain with the cast-iron portion and tensile strain by wrought-iron, and permit of the whole being mndecheaply and without skilled workmanship, the object of my invention being to provide t suitable pitman for the .side connections of pumpsl and kindred uses, where costly workmanship -is objectionable.
  • Figure l is a. side elevation of n. pitnmn embodying my invention.
  • Figure 2 is a detached perspective view ofthe cestiron portions of the pitman.
  • Figure 3 is a detached perspective view of the wrought-iron portions.
  • A is a cest-iron central ycolumn formed with halfboXes for the journals on the ends, and with concave recesses, (t, in the sides. Y
  • B G are caps formed with half-hearings cr boxes corresponding with those on the column A.
  • caps are constructed with flanges b c, which are perforated as shown.
  • the cap B is also provided with concave recesses b and the cap G wit-h semicircular groove c.
  • I) is a wrought-iron rod, ⁇ bent of the U-form shown, the legs being of such width apart as to closely fit the concave recesses a b c', and pass through the apertures in the flanges?) c, in the mztnner shown.
  • the heut rod D is screw-threaded at the ends and i'tted with nuts E E', which serve to secure the pnrts of' the pitman together.
  • the rod D is of simple round form, screw-threaded at the en'ds, :ind bent, and that the castings are of such form ats to require no inishing except when bored bearings are lpreferred to babbitting.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

mi im JOHN H. MCGOWAN, 0F OINCINNATL-OHIO.
Letters Patent No. 109,138, dated November 8, 1870.
IMPROVEMENT IN PITMEN.
The Schedule referred to in these Letters Patent and :n aking part of the same.
To all whom t ana/y concern:
Be it known that I, JOHN H. MoGowAN, of Gineinnati, Hamilton county, State of Ohio, have invented al certain new and useful Improvement in Pitmen or Connecting-Rods; and I hereby declare the following to be a. full, clear, and exact description thereof, reference being had t0 thc'accompanying drawing making part of this specification..
Nat-ure and bjects of Invention.
` My invention consists of' a peculiar construction, nrrangement, and combination of parts composing 'a pitman, the parts being formed and connected in such a mannerI as to oppose compressive strain with the cast-iron portion and tensile strain by wrought-iron, and permit of the whole being mndecheaply and without skilled workmanship, the object of my invention being to provide t suitable pitman for the .side connections of pumpsl and kindred uses, where costly workmanship -is objectionable. l Description of the Accompanying Drawing.
Figure l is a. side elevation of n. pitnmn embodying my invention.
Figure 2 is a detached perspective view ofthe cestiron portions of the pitman.
Figure 3 is a detached perspective view of the wrought-iron portions.
General Description. A is a cest-iron central ycolumn formed with halfboXes for the journals on the ends, and with concave recesses, (t, in the sides. Y
B G are caps formed with half-hearings cr boxes corresponding with those on the column A.
These caps are constructed with flanges b c, which are perforated as shown.
The cap B is also provided with concave recesses b and the cap G wit-h semicircular groove c.
I) is a wrought-iron rod,`bent of the U-form shown, the legs being of such width apart as to closely fit the concave recesses a b c', and pass through the apertures in the flanges?) c, in the mztnner shown.
`The heut rod D is screw-threaded at the ends and i'tted with nuts E E', which serve to secure the pnrts of' the pitman together.
It will be seen that the rod D is of simple round form, screw-threaded at the en'ds, :ind bent, and that the castings are of such form ats to require no inishing except when bored bearings are lpreferred to babbitting.
' Olatm. A pitman composed 0f the f ollmving cle1nentsviz.,
recessed column A a, caps B b' b', C c c', bent rod D,v
and nuts E E, combined substantially in the manner and for the purpose specified.
In testimony of which invention, I hereunto set my hand. f
' JOHN H. MCGOWAN. Titnessesz FRANK MILLwAnD, J. L. WARTMANN.
US109138D Improvement in pitmen Expired - Lifetime US109138A (en)

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