US421668A - Cromwell o - Google Patents

Cromwell o Download PDF

Info

Publication number
US421668A
US421668A US421668DA US421668A US 421668 A US421668 A US 421668A US 421668D A US421668D A US 421668DA US 421668 A US421668 A US 421668A
Authority
US
United States
Prior art keywords
body portion
disk
pulleys
pulley
neck
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
Publication date
Application granted granted Critical
Publication of US421668A publication Critical patent/US421668A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/261—Making other particular articles wheels or the like pulleys
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49453—Pulley making
    • Y10T29/49455—Assembly
    • Y10T29/49456—Assembly with shaping

Definitions

  • My invention relates to improvements in the method of making pulleys or wheels; and the object of my invention is to produce the article at a small cost and of superior quality.
  • Figure 1 is a side elevation of my pulley.
  • Fig. 2 is a section thereof on line a w of Fig. 1.
  • Fig. 3 is a side view of the blank for the body portion.
  • Fig. 4 is an end view of the headed piece for the hub portion.
  • Fig. 5 is an edge view of the blank for the body portion.
  • Fig. 6 is a side view of the piece shown in Fig. 4, and Figs. 7 and 8 are sectional views of the complete pulley or Wheel with different forms of periphery.
  • I first form the blank for the body portion A by cutting a disk from a fiat sheet of metal of uniform thickness, as shown in Figs. 3 and 5, punching the central hole a, Fig. 3, which holeI prefer to make of an angular form, and, if desired, I also punch other holes from the body portion for ornament, to reduce the weight of the pulley, or for other purposes.
  • the hub portion 12,1 form of wire by first making a headed piece with a square neck 0 immediately under the head, as shown in Figs. 4 and 6, the neck 0 being of a form and size to fit the central hole in the body-blank.
  • the angular neck 0 is not essential, and the smaller portion under the head may be made round, if desired, and the central hole in the bodyblank may be made of a corresponding form or enlarged or notched at one side. Iprefer, however, to make a square or irregular-shaped hole, and make the neck of acorresponding form in order to insure the body portion and hub being so secured that they will not rotate one with reference to the other.
  • part of the headed piece, Figs. 4 and 5 is placed in the central hole of the body blank or disk when the small end of the hub portion is upset or headed, throwing it into the form shown in Figs. 1, 2, 7, and 8, excepting that when first formed it has no axial hole.
  • the upsetting of the metal will shape the neck to correspond with the form of the hole.
  • the body or disk is placed in a lathe or some special machine either before or after the hub and disk are united and the outer edge of the body portion is spread out and wrought into the desired form for the peripheral flanges d d, preferably by spinning.
  • the concave form shown in Figs. 1 and2 may be produced by a single operation in the spinning-lathe, and after the metal-is thus spread out it may be subjected to another operation to make a flat groove for 'a chain, as shown in Fig. 8, or a wheel with a convex periphery.
  • the improvement in the manufacture of pulleys or wheels which consists, in part, in forming a fiat sheet-metal disk for the body portion of the pulley, spreading out and reducing its edge into the desired form of periphery, substantially as described, and for the purpose specified.
  • the smaller ripheral flanges may be varied, so as to proparts together, spreading out and reducing- Fig. 7, or a plain-faced wheel or pulley, as in

Landscapes

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

Description

(No Model.)
0. 0. CASE. METHOD OF MAKING PULLEYS.
Patented Feb. 18; 1890.
Wiimesses UNITED STATES PATENT OFFICE.
P. & F. CORBIN,
OF SAME PLACE.
METHOD OF MAKING PULLEYS.
QIEEGIFIGATION forming part of Letters Patent No. 421,668,12lated February 18, 1890.
Application filed September 20, 1889- Serial No. 324,479- (No model.)
To all whom it may concern.-
Be it known that I, CROMWELL 0. CASE, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in the Method of Making Pulleys, of which the following is a specification.
My invention relates to improvements in the method of making pulleys or wheels; and the object of my invention is to produce the article at a small cost and of superior quality.
In the accompanying drawings, Figure 1 is a side elevation of my pulley. Fig. 2 is a section thereof on line a w of Fig. 1. Fig. 3 is a side view of the blank for the body portion. Fig. 4 is an end view of the headed piece for the hub portion. Fig. 5 is an edge view of the blank for the body portion. Fig. 6 is a side view of the piece shown in Fig. 4, and Figs. 7 and 8 are sectional views of the complete pulley or Wheel with different forms of periphery.
The pulley or wheel herein shown and described is made the subject of a separate application of even date herewith.
I first form the blank for the body portion A by cutting a disk from a fiat sheet of metal of uniform thickness, as shown in Figs. 3 and 5, punching the central hole a, Fig. 3, which holeI prefer to make of an angular form, and, if desired, I also punch other holes from the body portion for ornament, to reduce the weight of the pulley, or for other purposes. The hub portion 12,1 form of wire by first making a headed piece with a square neck 0 immediately under the head, as shown in Figs. 4 and 6, the neck 0 being of a form and size to fit the central hole in the body-blank. The angular neck 0 is not essential, and the smaller portion under the head may be made round, if desired, and the central hole in the bodyblank may be made of a corresponding form or enlarged or notched at one side. Iprefer, however, to make a square or irregular-shaped hole, and make the neck of acorresponding form in order to insure the body portion and hub being so secured that they will not rotate one with reference to the other. part of the headed piece, Figs. 4 and 5, is placed in the central hole of the body blank or disk when the small end of the hub portion is upset or headed, throwing it into the form shown in Figs. 1, 2, 7, and 8, excepting that when first formed it has no axial hole. If the hole in the disk is of an irregular form and the neck of the tenon round, the upsetting of the metal will shape the neck to correspond with the form of the hole. The body or disk is placed in a lathe or some special machine either before or after the hub and disk are united and the outer edge of the body portion is spread out and wrought into the desired form for the peripheral flanges d d, preferably by spinning. The final form of the peduce pulleys or wheels of any desired form. The concave form shown in Figs. 1 and2 may be produced by a single operation in the spinning-lathe, and after the metal-is thus spread out it may be subjected to another operation to make a flat groove for 'a chain, as shown in Fig. 8, or a wheel with a convex periphery.
I claim as my invention- 1. The improvement in the manufacture of pulleys or wheels, which consists, in part, in forming a fiat sheet-metal disk for the body portion of the pulley, spreading out and reducing its edge into the desired form of periphery, substantially as described, and for the purpose specified.
2. The improvement in the manufacture of pulleys or wheels, which consists in forming the hub or central portion in a headed piece and the body portion in the form of a disk of sheet metal, with a central hole heading the small end of the hub portion to fasten said the edge of the body portion into the desired form of periphery, substantially as described, and for the purpose specified.
CROMWELL 0. CASE. Witnesses:
ALBERT N. ABBE, G. E. Roor.
The smaller ripheral flanges may be varied, so as to proparts together, spreading out and reducing- Fig. 7, or a plain-faced wheel or pulley, as in
US421668D Cromwell o Expired - Lifetime US421668A (en)

Publications (1)

Publication Number Publication Date
US421668A true US421668A (en) 1890-02-18

Family

ID=2490587

Family Applications (1)

Application Number Title Priority Date Filing Date
US421668D Expired - Lifetime US421668A (en) Cromwell o

Country Status (1)

Country Link
US (1) US421668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567334A (en) * 1946-06-21 1951-09-11 Automatic Steel Products Inc Metal spinning apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567334A (en) * 1946-06-21 1951-09-11 Automatic Steel Products Inc Metal spinning apparatus

Similar Documents

Publication Publication Date Title
US20220226879A1 (en) Method and a Device for the Manufacturing of Washers for Locking and Washer for Locking
NO177257B (en) Bimetallic coin item
US1752982A (en) Method of producing spring rings
US421668A (en) Cromwell o
US1423441A (en) Bolt for spring rings and process of manufacturing the same
US295156A (en) Process of making watch-case centers
AU748470B2 (en) Method and apparatus for manufacturing disk products having helical ridges
US385905A (en) Cushioned die for swaging sheet-metal articles
US20070125147A1 (en) Method of forming a part
US421669A (en) Cromwell
US322093A (en) Balance-wheel for watches
US414972A (en) Cromwell
US273924A (en) Manufacture of sewing-thimbles
US782509A (en) Manufacture of metal pulleys.
US487712A (en) burg-ess
US436676A (en) Orren m
US172853A (en) Improvement in the manufacture of metallic cartridge-shells
US527425A (en) Pulley-block
US1422263A (en) Two-piece-pulley construction
US219595A (en) Improvement in modes of manufacturing the pendants of watches
US274356A (en) Hugh mcdottgall
US507347A (en) Method of making chain
US108283A (en) Improvement in dies for swaging carriage-clips
US184138A (en) Improvement in spinning-rings
US462916A (en) wilson