US142611A - Improvement - Google Patents

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US142611A
US142611A US142611DA US142611A US 142611 A US142611 A US 142611A US 142611D A US142611D A US 142611DA US 142611 A US142611 A US 142611A
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United States
Prior art keywords
pitman
improvement
parts
pitmen
cushion
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Expired - Lifetime
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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
    • F16C7/04—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads with elastic intermediate part of fluid cushion
    • 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
    • Y10T74/2144—Yieldable
    • Y10T74/2146—Longitudinal springs

Definitions

  • This invention relates to pitmen composed of two parts united by means of springs, by Which they are rendered susceptible of clon gation and contraction.
  • My improvement consists in the combination, with such a pitman, of a spring and cushion interposed between the parts thereof7 a slotted sleeve, and a pin or projection, secured, respectively, to the latter, substantially as hereinafter mere fully set forth.
  • the pitman A A is composed of two parts united ⁇ by the coiled spring B or other suitable means by Which the pitman may be made susceptible of contraction and elongation or yielding, so as not to check the speed of the m achine When in motion-an objection to Which the ordinary pitman is open, in consequence of its stiffness or inelasticity. The speed of the machine is thus prevented from being checked by the pitman yielding to the inequalities of the motion thereof.
  • a cushion for and interposed between the opposite ends of the parts of the pitman is a block or cylinder of rubber, C, encircled by the coiled spring B. This block of rubber or cushion C also prevents the contact of the ends ofthe parts of the pitman, by which all concussion is overcome.
  • a sleeve, D is fitted to one of the parts of the pitman, and having an elongated slot, d, which receives a lug or projection, f, fastened to a ring or cylinder, F, confining the Opposite end of the coiled spring B to the other part of the pitman.
  • the ring or band F acts to relieve the sleeve D of friction as it slides back and forth over the band F.

Description

1. H. cAo'rHE-ns.
, Pitmen. No. 142,611, Patentevdsepte'mberg,1873.
Witnesses.
.Htl orneys.
Alvrrnn Sarns JACOB H. GAROTHERS, 0F LEWISBURG, PENNSYLVANIA.
IMPROVEMENT IN PITMEN.
Specicationforming part of Letters Pafw/eltpq; 1412,611, dated September 9,1873; application filed Amira-1873.
To all whom it may concern:
Be it known that I, JACOB H. CAROTHERs, residing in Lewisburg,in the county of Union and State of Pennsylvania, have invented a new and useful Improvement in Pitmen, of which the following is a full, clear, and exact description, reference being had to the anneXed drawing, in which the ligure illustrates a perspective View of my improved pitman.
This invention relates to pitmen composed of two parts united by means of springs, by Which they are rendered susceptible of clon gation and contraction. My improvement consists in the combination, with such a pitman, of a spring and cushion interposed between the parts thereof7 a slotted sleeve, and a pin or projection, secured, respectively, to the latter, substantially as hereinafter mere fully set forth. f
To enable others to make and use my invention, I will proceed to describe it.
The pitman A A is composed of two parts united `by the coiled spring B or other suitable means by Which the pitman may be made susceptible of contraction and elongation or yielding, so as not to check the speed of the m achine When in motion-an objection to Which the ordinary pitman is open, in consequence of its stiffness or inelasticity. The speed of the machine is thus prevented from being checked by the pitman yielding to the inequalities of the motion thereof. To form a cushion for and interposed between the opposite ends of the parts of the pitman is a block or cylinder of rubber, C, encircled by the coiled spring B. This block of rubber or cushion C also prevents the contact of the ends ofthe parts of the pitman, by which all concussion is overcome. A sleeve, D, is fitted to one of the parts of the pitman, and having an elongated slot, d, which receives a lug or projection, f, fastened to a ring or cylinder, F, confining the Opposite end of the coiled spring B to the other part of the pitman. The ring or band F acts to relieve the sleeve D of friction as it slides back and forth over the band F.
It is obvious that when a metallic pitman is employed the friction-band F can be dispensed with.
Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-
The combination of the pitman A AWith the spring B, cushion C, sleeve D d, and pin or projectionf, substantially as and for the purpose specified.
In testimony whereof I havehereunto signed my name this 25th day. 0f March, 1873, in presence of two subscribing Witnesses.
JACOB Il. CAROTHERS.
'Witnessem CYnUs BROWN, A. E. SLIFER.
US142611D Improvement Expired - Lifetime US142611A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439607A (en) * 1944-06-07 1948-04-13 Jr Samuel E Irwin Tree felling and log sawing attachment for tractors
US2494706A (en) * 1948-01-26 1950-01-17 Lynch Corp Unidirectional dual selective drive for dual table glass machines
US2550613A (en) * 1945-12-10 1951-04-24 Sparmann Edmund Ernst Karl Means for anchoring wobble plates
US5235873A (en) * 1991-08-29 1993-08-17 Hydraulic Units, Incorporated Backlash eliminator
US20080148591A1 (en) * 2006-12-20 2008-06-26 Chiu-Mei Kao Lin Measuring wheel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439607A (en) * 1944-06-07 1948-04-13 Jr Samuel E Irwin Tree felling and log sawing attachment for tractors
US2550613A (en) * 1945-12-10 1951-04-24 Sparmann Edmund Ernst Karl Means for anchoring wobble plates
US2494706A (en) * 1948-01-26 1950-01-17 Lynch Corp Unidirectional dual selective drive for dual table glass machines
US5235873A (en) * 1991-08-29 1993-08-17 Hydraulic Units, Incorporated Backlash eliminator
US20080148591A1 (en) * 2006-12-20 2008-06-26 Chiu-Mei Kao Lin Measuring wheel

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