US315204A - Guard for shielding set-screws in pulleys - Google Patents

Guard for shielding set-screws in pulleys Download PDF

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US315204A
US315204A US315204DA US315204A US 315204 A US315204 A US 315204A US 315204D A US315204D A US 315204DA US 315204 A US315204 A US 315204A
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guard
pulleys
screws
shield
shielding
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B23Q11/0082—Safety devices protecting the operator, e.g. against accident or noise by determining whether the operator is in a dangerous position
    • 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
    • Y10T74/2193—Guard mechanisms
    • Y10T74/2199—Set screw

Definitions

  • This invention relates to means for covering and shielding setscrews in pulleys, and thus preventing accidents and injury to the persons who work about the same.
  • Figure l represents a pulley and set-screw with my setscrew guard attached thereto.
  • Fig. 2 is a vertical cross-section made on dotted line .9000.
  • Fig. 3 is a View of the guard or shield detached.
  • the pulley A, shaft B, and set-screw a are all constructed and combined together in the usual and customary way.
  • the shield or guard H is preferably composed of two parts, as shown in Fig. 3. They may be composed of wood, paper, iron, or other obvious materials.
  • the half 6 is provided with a small rib, 2, adapted to fit' into a corresponding groove, f, in one end of the half h, thus looking these two ends of the shield together while it is sprung round the hub of the pulley'or its central shaft, B, and fastened by the screw 4, as represented in Fig. 1.
  • the shield may, if desired, be made in one piece and sprung round the shaft.
  • the central hole of the shaft is provided with a flexible bushing, 8, which yields slightly, thus allowing the shield to be sprung onto and accommodate itself to shafts of different sizes.
  • the shield of course grips onto the shaft or hub of the pulley, and revolves with the same, and it may be removed at any time whenever it is desired to do so, either to get at the setsorew or for any other purpose.
  • a set-screw guard or shield composed of a flanged disk or shell having a central opening provided with a yielding or flexible bush- SETH H. XVOODBURY.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Description

(No ModeL) s. WOODBURY. I GUARD FOR SHIELDING SET SCREWS IN PULLEYS.
No 315,204. Patented Apr. '7, 1885.
UNITED STATES PATENT OFFICE.
SETH WOODBURSQOF LYNN, MASSACHUSETTS.
GUARD FOR SHIELDING SET-SCREWS lN PULLEYS.
SPECIFICATION forming part of Letters Patent No. 315,204, dated April 7, 1885.
Application filed February 3, 1885. (No model.)
To all whom it may concern;
Be it known that I, SETH H. \VooDBURY, of Lynn, in the county of Essex and Commonwealth of Massachusetts, have invented a Guard for Shielding Set-Screws in Pulleys, of which the following, taken in connection with the accompanying drawings, is a specification.
This invention relates to means for covering and shielding setscrews in pulleys, and thus preventing accidents and injury to the persons who work about the same.
The nature of the invention is fully described hereinafter, and specifically pointed out in the claims.
Referring to the drawings, Figure l represents a pulley and set-screw with my setscrew guard attached thereto. Fig. 2is a vertical cross-section made on dotted line .9000. Fig. 3 is a View of the guard or shield detached.
The pulley A, shaft B, and set-screw a are all constructed and combined together in the usual and customary way. The shield or guard H is preferably composed of two parts, as shown in Fig. 3. They may be composed of wood, paper, iron, or other obvious materials. The half 6 is provided with a small rib, 2, adapted to fit' into a corresponding groove, f, in one end of the half h, thus looking these two ends of the shield together while it is sprung round the hub of the pulley'or its central shaft, B, and fastened by the screw 4, as represented in Fig. 1.
Instead of the two parts, as described, the shield may, if desired, be made in one piece and sprung round the shaft. The central hole of the shaft is provided with a flexible bushing, 8, which yields slightly, thus allowing the shield to be sprung onto and accommodate itself to shafts of different sizes. The shield of course grips onto the shaft or hub of the pulley, and revolves with the same, and it may be removed at any time whenever it is desired to do so, either to get at the setsorew or for any other purpose.
What I claim, and desire by Letters Patent to secure, is
1. The combination of a pulley, asetscrew, and a set-screw guard or shield, said guard or shield being adapted to conceal the setscrew, substantially as shown, and being detachabl y connected to the pulley, substantially as and for the purposes described.
2. A set-screw guard or shield composed of a flanged disk or shell having a central opening provided with a yielding or flexible bush- SETH H. XVOODBURY.
Witnesses:
C. B. TUTTLE, Q. TUTTLE.
US315204D Guard for shielding set-screws in pulleys Expired - Lifetime US315204A (en)

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