US666794A - Pitman-holder. - Google Patents

Pitman-holder. Download PDF

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Publication number
US666794A
US666794A US1942100A US1900019421A US666794A US 666794 A US666794 A US 666794A US 1942100 A US1942100 A US 1942100A US 1900019421 A US1900019421 A US 1900019421A US 666794 A US666794 A US 666794A
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US
United States
Prior art keywords
pitman
pin
wrist
key
spring
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
Application number
US1942100A
Inventor
Edward J Birkett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MILWAUKEE HARVESTER Co
Original Assignee
MILWAUKEE HARVESTER Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MILWAUKEE HARVESTER Co filed Critical MILWAUKEE HARVESTER Co
Priority to US1942100A priority Critical patent/US666794A/en
Application granted granted Critical
Publication of US666794A publication Critical patent/US666794A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32951—Transverse pin or stud
    • Y10T403/32967—Attached to or integral with one member

Definitions

  • My invention relates to improvements in pitman connections for harvesters and mowers; and the object of my improvement is to provide a pitman connection that may be readily disconnected without the use of tools and one that will securely retain the parts in connection when so adjusted. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan view, partly in section, of my invention. Figs. 2, 3, 4, and 5 are representations in detail of the difierent opera- 2o tive part-s.
  • 1 is the crank. It may be a crank-Wheel.
  • 2 is the wrist-pin. It is formed with a tubular 2 5 bore 3, which may extend entirely through the crank. The bore at its outer end is partly closed by means of the bridge 4.
  • 5 is a retaining-key having the stem portion 6 adapted to enter the bore 3 and the collar portion 0 7 of greater diameter than the wrist-pin 1.
  • An opening 8 is made through the larger end of the key, and upon each side of the opening are small cars 9, projecting outward from its face, and a plate-spring 10 is secured to the 5 key, leaving its free end projecting through the opening 8.
  • the plate-spring 10 has an offset 11, adapted to engage with the bridge 4 of the wrist-pin, and the ribbed sides 12 of the key rest against the bridge and prevent the key from revolving within the Wrist-pin.
  • the cars 9 are designed to shield the projecting end of the spring.
  • the same mode of construction is employed in connecting the opposite end of the pitman to the sickle-head.
  • the sickle-head is provided with a pin corpin.
  • the retaining-key is pushed into the bore of the wrist-pin.
  • the plate-spring yields under the pressure until the offset portion has reached a position inside of the bridge 4:, when it reacts and causes the ofiset to engage with the bridge, and the collar being of greater diameter than the wrist-pin holds the pitman securely against lateral displacement.
  • My invention is applicable to all mechanisms employing pitmen with wrist-pin connections and is especially designed to facilitate the removal-of the pitman of a harvester or mower cutting apparatus, which is frequently necessaryin order that the sickle may be withdrawn.
  • a pitman connection the combination of a pitman, a wrist-pin and a retaining-key, said wrist-pin having a central longitudinal bore adapted to receive the retaining-key, a plate-spring having an offset, and said wristpin provided with a bridge portion extending across one end of the longitudinal bore, and adapted to engage with the offset portion of the spring.
  • a pitman-retaining key adapted to enter an axial bore of a wrist-pin, and provided with a head having a greater diameter than the wrist-pin, and an opening through the head, and a plate-spring having one end secured to the key, and its free end projecting through the opening, said spring having an offset adapted to engage with the Wrist-pin.
  • a sickle-head having a stem adapted to receive a pitman, said stem having an axial bore adapted to receive a retaining-key, and means within said stem for holding the key against lateral displacement.

Description

No. 666,794. Patented Ian. 29, MIL
E. J. BIBKETT. PITMA' N HOLDER.
(Application filed June 7, 1900.)
(No Modal.)
I/MMQ Edward JET/M.
TN: "ORRAS Finns cu. PMoYo-l.lfn0.. WASRINGTON. u. c,
UNITED STATES PATENT OFFICE.
EDWARD J. BIRKETT, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO THE MILWAUKEE HARVESTER COMPANY, OF SAME PLACE.
PlTMAN-HOLDER.
SPECIFICATION forming part of Letters Patent No. 666,794, dated January 29, 1901.
Application filed June '7, 1900. Serial No. 19,421. (No model.)
To all whom it may concern: I
Be it known that I, EDWARD J. BIRKETT, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Pitman-Holders, of which the following is a specification.
My invention relates to improvements in pitman connections for harvesters and mowers; and the object of my improvement is to provide a pitman connection that may be readily disconnected without the use of tools and one that will securely retain the parts in connection when so adjusted. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan view, partly in section, of my invention. Figs. 2, 3, 4, and 5 are representations in detail of the difierent opera- 2o tive part-s.
Like numerals refer to like parts throughout the several figures.
1 is the crank. It may be a crank-Wheel. 2 is the wrist-pin. It is formed with a tubular 2 5 bore 3, which may extend entirely through the crank. The bore at its outer end is partly closed by means of the bridge 4. 5 is a retaining-key having the stem portion 6 adapted to enter the bore 3 and the collar portion 0 7 of greater diameter than the wrist-pin 1.
An opening 8 is made through the larger end of the key, and upon each side of the opening are small cars 9, projecting outward from its face, and a plate-spring 10 is secured to the 5 key, leaving its free end projecting through the opening 8. The plate-spring 10 has an offset 11, adapted to engage with the bridge 4 of the wrist-pin, and the ribbed sides 12 of the key rest against the bridge and prevent the key from revolving within the Wrist-pin.
The cars 9 are designed to shield the projecting end of the spring. The same mode of construction is employed in connecting the opposite end of the pitman to the sickle-head.
The sickle-head is provided with a pin corpin. The retaining-key is pushed into the bore of the wrist-pin. The plate-spring yields under the pressure until the offset portion has reached a position inside of the bridge 4:, when it reacts and causes the ofiset to engage with the bridge, and the collar being of greater diameter than the wrist-pin holds the pitman securely against lateral displacement.
My invention is applicable to all mechanisms employing pitmen with wrist-pin connections and is especially designed to facilitate the removal-of the pitman of a harvester or mower cutting apparatus, which is frequently necessaryin order that the sickle may be withdrawn.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. In a pitman connection, the combination of a pitman, a wrist-pin and a retaining-key, said wrist-pin having a central longitudinal bore adapted to receive the retaining-key, a plate-spring having an offset, and said wristpin provided with a bridge portion extending across one end of the longitudinal bore, and adapted to engage with the offset portion of the spring.
2. A pitman-retaining key adapted to enter an axial bore of a wrist-pin, and provided with a head having a greater diameter than the wrist-pin, and an opening through the head, and a plate-spring having one end secured to the key, and its free end projecting through the opening, said spring having an offset adapted to engage with the Wrist-pin.
3. In a pitman connection, a wrist-pin and a pitman in combination therewith,said Wristpin having an axial bore adapted to receive a'pitman-retaining key, and having a bridge across one end of the bore.
4.. In a pitman and sickle-head connection, the combination of a sickle-head having a stem adapted to receive a pitman, said stem having an axial bore adapted to receive a retaining-key, and means within said stem for holding the key against lateral displacement.
EDWARD J. BIRKETT.
Witnesses:
E. W. BURGESS, B. C. WAIT.
US1942100A 1900-06-07 1900-06-07 Pitman-holder. Expired - Lifetime US666794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1942100A US666794A (en) 1900-06-07 1900-06-07 Pitman-holder.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1942100A US666794A (en) 1900-06-07 1900-06-07 Pitman-holder.

Publications (1)

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US666794A true US666794A (en) 1901-01-29

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US1942100A Expired - Lifetime US666794A (en) 1900-06-07 1900-06-07 Pitman-holder.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875388A (en) * 1987-09-10 1989-10-24 Valeo Device of the crank connecting rod type, in particular for controlling a ventilation louver in an automobile heating or air conditioning unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875388A (en) * 1987-09-10 1989-10-24 Valeo Device of the crank connecting rod type, in particular for controlling a ventilation louver in an automobile heating or air conditioning unit

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