US853006A - Pulley. - Google Patents

Pulley. Download PDF

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Publication number
US853006A
US853006A US31280206A US1906312802A US853006A US 853006 A US853006 A US 853006A US 31280206 A US31280206 A US 31280206A US 1906312802 A US1906312802 A US 1906312802A US 853006 A US853006 A US 853006A
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United States
Prior art keywords
pulley
hub
keys
shaft
tongue
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
US31280206A
Inventor
Joseph B Dunlap
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.)
Individual
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Individual
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Publication date
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Priority to US31280206A priority Critical patent/US853006A/en
Application granted granted Critical
Publication of US853006A publication Critical patent/US853006A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0817—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to rotation along an eccentric surface, e.g. arcuate wedging elements
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/30—Dovetail-like connections
    • 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
    • Y10T403/70—Interfitted members
    • Y10T403/7009—Rotary binding cam or wedge
    • Y10T403/7011—Radially interposed shim or bushing
    • Y10T403/7013—Arcuate slip
    • 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
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7049—Biased by distinct radially acting means
    • 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
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming

Definitions

  • My invention relates more particularly to drive pulleys for shafting, but comprehends the general subject of gear-wheels and similar driving or driven devices.
  • the invention is directed to the pulley or gear-wheel fastening means and also to a peculiar construction of a two-part hub.
  • FIG. 1 is a view illustrating my invention in side elevation. Figs.
  • FIGS. 2 and 3 are edge or plan views, illustrating two detached half-portions of a divided pulley.
  • Fig. 4 shows perspective views of the pulley fastenings, bushings, or keys, and
  • Fig.- 5 is an enlarged transverse sectional view through my improved two-part hub and its fastening means.
  • the opening C through the hub may be defined as being formed by curved walls, or segments of circles E, described from laterally separated points of center.
  • the other portion of the hub A is likewise provided with a tongue II and a groove G, both corresponding in form to the tongue and groove F, I, and are adapted in assembling the two parts of the hub, for the tongues to be entered into the grooves and the secstood.
  • My invention involves novelty in that it obviates the necessity of boring, smoothing or otherwise finishing the shaft opening through the hub, thereby adapting the parts for ready use, directly after casting of the parts.
  • the pulley is arranged on its supporting shaft and the keys D driven into place, in the are shaped spaces formed inside the shaft opening through the hub.
  • a hub constructed in two interchangeable parts and with a shaft opening therethrough, there being a dove-tail tongue, and a similar shaped groove, in the adjacent sides of the hub parts, the tongue on one part being adapted for interlocking engagement with the groove on the other part, curved keys in the shaft opening, constructed with cam acting outer surfaces, and a shaft provided with a bur adapted to operatively engage the curved keys.

Description

J B D U N L I A P.
ur IoAnon r ooooooooooooooo e.
JOSEPH B. DUNLAP, OF TULSA, INDIAN TERRITORY.
PULLEY.
Specification of Letters Patent.
Patented May '7, 1907.
Application filed April 20, 1906. Serial No. 312,802.
To all whom it may concern.-
Be it known that I, JosEPH B. DUNLAP, a citizen of the United States, and a resident of Tulsa, in the Creek Nation, Indian Territory, have invented anew and Improved Pulley, of which the following is a specification.
My invention relates more particularly to drive pulleys for shafting, but comprehends the general subject of gear-wheels and similar driving or driven devices.
The invention is directed to the pulley or gear-wheel fastening means and also to a peculiar construction of a two-part hub.
The invention consists, more definitely stated, of the novel construction shown by the accompanying drawing and hereinafter fully described.
In the drawing Figure 1 is a view illustrating my invention in side elevation. Figs.
2 and 3 are edge or plan views, illustrating two detached half-portions of a divided pulley. Fig. 4 shows perspective views of the pulley fastenings, bushings, or keys, and Fig.- 5 is an enlarged transverse sectional view through my improved two-part hub and its fastening means.
In the preferred form of my invention I employ'a divided pulley, consisting of two similar interchangeable portions A and B, the bore or shaft opening 0 through the hubs being fashioned in peculiar form as will appear further on.
In the makeup of my invention I employ two keys D, having inner curved sides, and outer sides made cam shape from one longitudinal edge to the other, or gradually thickened transversely substantially as shown, into wedge form.
The opening C through the hub may be defined as being formed by curved walls, or segments of circles E, described from laterally separated points of center.
In further carrying out my invention I provide the inner or flat side of one hub portion B with a transversely arranged dovetail tongue F, made tapering from end to end,
' and similar shaped and arranged groove I.
The other portion of the hub A is likewise provided with a tongue II and a groove G, both corresponding in form to the tongue and groove F, I, and are adapted in assembling the two parts of the hub, for the tongues to be entered into the grooves and the secstood.
Other fastening means such as perforated lugs and securing bolts indicated at J, are also provided in the makeup of my invention, but as same will be readily understood, detail description thereof is deemed unnecessary.
The construction of my invention will be understood from the above description.
My invention involves novelty in that it obviates the necessity of boring, smoothing or otherwise finishing the shaft opening through the hub, thereby adapting the parts for ready use, directly after casting of the parts.
In the use of my invention the pulley is arranged on its supporting shaft and the keys D driven into place, in the are shaped spaces formed inside the shaft opening through the hub. Now it is obvious that when the pulley is forwardly rotated indicated by the arrow in Fig. 5, the outer surfaces of the keys will be engaged by cam acting surfaces, formed by the cylindrical shaped surfaces E in the bore of the hub, and through wedging action clamp the keys against the shaft, thereby secure the pulley against rotation on the shaft.
In some instances it may be necessary to upset a slight bur K on the pulley shaft, for use as' an obstruction to sliding action of the keys, upon starting the pulley, and same may be made with a suitable chisel, as will be understood.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is In combination, a hub constructed in two interchangeable parts and with a shaft opening therethrough, there being a dove-tail tongue, and a similar shaped groove, in the adjacent sides of the hub parts, the tongue on one part being adapted for interlocking engagement with the groove on the other part, curved keys in the shaft opening, constructed with cam acting outer surfaces, and a shaft provided with a bur adapted to operatively engage the curved keys.
JOSEPH B. DUNLAP.
Witnesses:
HENRY M. PRICE, W. I. RENEAU.
US31280206A 1906-04-20 1906-04-20 Pulley. Expired - Lifetime US853006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US31280206A US853006A (en) 1906-04-20 1906-04-20 Pulley.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31280206A US853006A (en) 1906-04-20 1906-04-20 Pulley.

Publications (1)

Publication Number Publication Date
US853006A true US853006A (en) 1907-05-07

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US31280206A Expired - Lifetime US853006A (en) 1906-04-20 1906-04-20 Pulley.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427468A (en) * 1991-01-10 1995-06-27 Muellenberg; Ralph Coupling element for the frictional connection of an outer component to a shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427468A (en) * 1991-01-10 1995-06-27 Muellenberg; Ralph Coupling element for the frictional connection of an outer component to a shaft

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