US151765A - Improvement in mainspring attachments - Google Patents

Improvement in mainspring attachments Download PDF

Info

Publication number
US151765A
US151765A US151765DA US151765A US 151765 A US151765 A US 151765A US 151765D A US151765D A US 151765DA US 151765 A US151765 A US 151765A
Authority
US
United States
Prior art keywords
mainspring
attachments
improvement
spring
notch
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 US151765A publication Critical patent/US151765A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor

Definitions

  • WITNESSES v INV TUR: PM( ma@ VQ/ND B ATTRNEYS.
  • My invention consists of' an eccentric notch or recess in the face ofthe arbor of the barrel to which the mainspring ⁇ of a watch is connected, the notch beingI as deep as the thickness ofthe spring, and terminating' with the end of the spring by a radial wall, extending to the true circumference ot' the arbor.
  • the object is to so shape the arbor that the spring end will not form an abrupt projection for the first coil of the spring to wind over, which produces an extra strain and bend at that point, and weakens it so that it breaks, moreover, causing an irregular action of the watch, which it is desirable to avoid.
  • the drawing is a plan view of the barrel and mainspring, showing my improvements.
  • A represents the hub or collar ofthe arbor of the barrel; B, the mainspring, and C the eccentric notch in the face of the collar, in which the end of the spring is fastened, so that its outer side is Hush with the circumference ot the collar at the end of the notch, and from the end ofthe eccentric curve of the bottom ofthe notch is so gradual that the injurious effects produced by connecting ⁇ the spring on kthe face of the hub without a notch are Wholly

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)

Description

vL-C. EDWARDS.
Main-Spring Attachments.
No.15l,765, y Patentedjune 97,1874.
WITNESSES: v INV TUR: PM( ma@ VQ/ND B ATTRNEYS.
UNITED STATES JAMES C. EDVARDS, OF BINGHAMTON, NEW7 YORK.
IMPROVEMENT IN MAINSPRING ATTACHMENTS.
Specification forming part of Lettels Patent No 151,765, dated June 9, 1874; application tiled March 7, 1874.
To all whom fit may concern:
Be it known that I, JAMES C. EDWARDS, of Binghamton, in the county of Broome and State of New York, have invented a new and Improved Mainspring and Barrel-Arbor Gonneetion, ot' which the following is a specitieation:
My invention consists of' an eccentric notch or recess in the face ofthe arbor of the barrel to which the mainspring` of a watch is connected, the notch beingI as deep as the thickness ofthe spring, and terminating' with the end of the spring by a radial wall, extending to the true circumference ot' the arbor.
The object is to so shape the arbor that the spring end will not form an abrupt projection for the first coil of the spring to wind over, which produces an extra strain and bend at that point, and weakens it so that it breaks, moreover, causing an irregular action of the watch, which it is desirable to avoid.
The drawing is a plan view of the barrel and mainspring, showing my improvements.
A represents the hub or collar ofthe arbor of the barrel; B, the mainspring, and C the eccentric notch in the face of the collar, in which the end of the spring is fastened, so that its outer side is Hush with the circumference ot the collar at the end of the notch, and from the end ofthe eccentric curve of the bottom ofthe notch is so gradual that the injurious effects produced by connecting` the spring on kthe face of the hub without a notch are Wholly
US151765D Improvement in mainspring attachments Expired - Lifetime US151765A (en)

Publications (1)

Publication Number Publication Date
US151765A true US151765A (en) 1874-06-09

Family

ID=2221177

Family Applications (1)

Application Number Title Priority Date Filing Date
US151765D Expired - Lifetime US151765A (en) Improvement in mainspring attachments

Country Status (1)

Country Link
US (1) US151765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2518763B (en) * 2012-04-04 2017-04-26 Ibm Provisioning cooling elements for chillerless data centers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2518763B (en) * 2012-04-04 2017-04-26 Ibm Provisioning cooling elements for chillerless data centers

Similar Documents

Publication Publication Date Title
JP2019529034A5 (en)
US156480A (en) Improvement in mainsprings
US122414A (en) Improvement in mainspring adjustments for watches
US157088A (en) Improvement in spring-barrels for clocks
USD43671S (en) Design for a tea or coffee pot
USD42855S (en) Design for a wheel
US867870A (en) Watch-barrel.
US1067946A (en) Tack-fastened button.
USD48097S (en) Design for a teapot or similar article
USD42087S (en) Design fob a pobtiebe
US439193A (en) Thirds to george w
USD43522S (en) George e
USD43977S (en) Planograph co
USD43520S (en) Design for a tea or cofpee pot
USD45156S (en) Design for a bicycle-frame
USD43559S (en) Design for a spoon, fork, or similar article
US160109A (en) Improvement in the attachment of mainsprings to arbors
USD45127S (en) Design for a bowl
USD43979S (en) Design for braid or trimming
USD42968S (en) Design for a spoon, fork, or similar article
USD42314S (en) Design for a valve
USD43389S (en) Design for a cigar-band
USD44547S (en) Design for a collar
USD53913S (en) Design for a ring
USD43130S (en) Design for a covered dish or similar article