US1499520A - Pulley - Google Patents

Pulley Download PDF

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Publication number
US1499520A
US1499520A US618484A US61848423A US1499520A US 1499520 A US1499520 A US 1499520A US 618484 A US618484 A US 618484A US 61848423 A US61848423 A US 61848423A US 1499520 A US1499520 A US 1499520A
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United States
Prior art keywords
pulley
hog
skin
leather
grain
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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
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US618484A
Inventor
Harold M Gusdorf
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Individual
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Individual
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Priority to US618484A priority Critical patent/US1499520A/en
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Publication of US1499520A publication Critical patent/US1499520A/en
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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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/38—Means or measures for increasing adhesion

Definitions

  • the object of this invention is to provide a pulley with a belt surface pitted with elastic cup-like depressions that will give a vacuum-grip on the belt, and which will have a substantially inelastic side contacting the pulley-face to insure a stronger and more durable attachment to the pulley of the said outer material.
  • A. further object is to utilize hog-skin leather, tanned to preserve the desired inelastic grain surface and elastic flesh side with cup-formations natural to it for the pulley facing material.
  • Fig. 1 is a cross section of hog-skin leather, greatly magnified, to show the interwoven fibres that impart a firm surface to the leather on the grain side, and the cup-like indentations of the other or flesh side.
  • Fig. 2 is a side elevation of a pulley faced with hog-skin leather, and
  • Fig. 3 is a front or face view of same.
  • the pulley 4 is of iron, steel, wood or other usual and suitable material made in the usual manner and of any desired size.
  • the face 5 of the pulley is covered with Serial No. 618,484.
  • the hog-skin leather will he cemented to the pulley face, or securely attached thereto in any suitable manner.
  • lVhile I have here illustrated and described hog-skin leather as a natural product when suitably treated in tanning, a pulley-facing material, having the same essential characteristics may be produced entirely by artificial means, and I do not desire therefore to limit my invention to hogskin or any certain material, more than is required by the appended claims.
  • a surface cover for pulleys made out of hog-skin having the grain side next to the pulley and the flesh side out.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

July 1, 119%..
H. M. GUSDORF PULLEY Filed Feb. 12, 1923 Patented .Jluly l, llQZd.
HAROLD M. GUSDORF, OF INDIANAPOLIS, INDIANA.
PULLEY.
Application filed February 12, 1923.
To all whom it may concern:
Be it known that I, HAROLD M. GUsDoRr, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented new and useful Improvements in Pulleys, of which the following is a specification.
The object of this invention is to provide a pulley with a belt surface pitted with elastic cup-like depressions that will give a vacuum-grip on the belt, and which will have a substantially inelastic side contacting the pulley-face to insure a stronger and more durable attachment to the pulley of the said outer material.
A. further object is to utilize hog-skin leather, tanned to preserve the desired inelastic grain surface and elastic flesh side with cup-formations natural to it for the pulley facing material.
I accomplish the above, and other minor objects such as will hereinafter appear, by the means diagrammatically illustrated in the accompanying drawing, in which- Fig. 1, is a cross section of hog-skin leather, greatly magnified, to show the interwoven fibres that impart a firm surface to the leather on the grain side, and the cup-like indentations of the other or flesh side. Fig. 2, is a side elevation of a pulley faced with hog-skin leather, and Fig. 3 is a front or face view of same.
Like characters of reference indicate like parts in the several views of the drawing.
The pulley 4: is of iron, steel, wood or other usual and suitable material made in the usual manner and of any desired size. The face 5 of the pulley is covered with Serial No. 618,484.
hog-skin leather with the 'firm inelastic grain or hair-side 6 in contact with the pul- 40 ley surface and the opposite flesh side 7 turned outwardly. This flesh side 7 is pitted with cup-like depressions 8, natural to hog: skin and carefully preserved in the process of tanning, and the adjacent material of the hog-skin to said cups is sufficiently elastie to allow them to be compressed under a load, thereby discharging much of their contained air, and to spring back due to said elasticity thereby creating partial vacuums which cause the pulley surface made from said leather to grip the belt.
The hog-skin leather will he cemented to the pulley face, or securely attached thereto in any suitable manner.
lVhile I have here illustrated and described hog-skin leather as a natural product when suitably treated in tanning, a pulley-facing material, having the same essential characteristics may be produced entirely by artificial means, and I do not desire therefore to limit my invention to hogskin or any certain material, more than is required by the appended claims.
I claim: a
'1. A surface cover for pulleys made out of hog-skin having the grain side next to the pulley and the flesh side out.
2. The combination, with a pulley, of a facingtherefor formed out of hog-skin leather having the grain side secured to the pulley and the flesh side out to be contacted by a belt. v
Signed at Indianapolis, Indiana, this the 6th day of February. 1923.
HAROLD M. GUSDORF.
US618484A 1923-02-12 1923-02-12 Pulley Expired - Lifetime US1499520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US618484A US1499520A (en) 1923-02-12 1923-02-12 Pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US618484A US1499520A (en) 1923-02-12 1923-02-12 Pulley

Publications (1)

Publication Number Publication Date
US1499520A true US1499520A (en) 1924-07-01

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ID=24477897

Family Applications (1)

Application Number Title Priority Date Filing Date
US618484A Expired - Lifetime US1499520A (en) 1923-02-12 1923-02-12 Pulley

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US (1) US1499520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355211A1 (en) * 1976-06-14 1978-01-13 Volvo Car Bv PROFILED DRIVE BELT DRIVE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355211A1 (en) * 1976-06-14 1978-01-13 Volvo Car Bv PROFILED DRIVE BELT DRIVE

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