GB747134A - An improved pivot for spindles of clockwork and like delicate mechanisms - Google Patents
An improved pivot for spindles of clockwork and like delicate mechanismsInfo
- Publication number
- GB747134A GB747134A GB6154/54A GB615454A GB747134A GB 747134 A GB747134 A GB 747134A GB 6154/54 A GB6154/54 A GB 6154/54A GB 615454 A GB615454 A GB 615454A GB 747134 A GB747134 A GB 747134A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clockwork
- pivot
- wire
- staff
- vickers
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- 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
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
- G04B31/008—Jewel bearings
- G04B31/0082—Jewel bearings with jewel hole and cap jewel
-
- 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
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/02—Shock-damping bearings
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Paper (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
747,134. Pivot bearings. STRAUMANN, R. March 2, 1954 [Nov. 28, 1953], No. 6154/54. Class 12 (1). [Also in Group XXII] A method for producing a pivot bearing for a spindle of a clockwork or like mechanism comprises homogenizing and isothermally tempering a steel wire, cold-drawing said wire until its tensile strength exceeds 200 kg. per sq. mm. with a hardness above 600 Vickers, heat treating the wire at a temperature between 200‹ and 300‹ C. to make its hardness exceed 700 Vickers, and securing a length of said wire in an axial socket in the end of the spindle proper. A pivot a, Fig. 1, c, Fig. 2, thus made and secured in a terminal bore at each end of a balance staff b of clockwork mechanism so as to extend from the staff a distance of about a quarter of the distance between the outer pivot ends, is supported laterally, adjacent its point of contact with the jewel, Fig. 1, or close to its junction with the staff b, Fig. 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH311285A CH311285A (en) | 1953-11-28 | 1953-11-28 | Process for the production of a shaft with unbreakable bearing journals for clockworks and precision mechanical apparatus and a shaft with unbreakable bearing journals produced by this process. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB747134A true GB747134A (en) | 1956-03-28 |
Family
ID=63447035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6154/54A Expired GB747134A (en) | 1953-11-28 | 1954-03-02 | An improved pivot for spindles of clockwork and like delicate mechanisms |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH311285A (en) |
| DE (1) | DE1002015B (en) |
| GB (1) | GB747134A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012104367A1 (en) | 2011-02-02 | 2012-08-09 | Aktiebolaget Skf | Rolling bearing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11036186B2 (en) | 2016-12-23 | 2021-06-15 | Comadur Sa | Reduced-friction shaft support bearing |
| EP3367182A1 (en) * | 2017-02-23 | 2018-08-29 | Comadur S.A. | Low-friction shaft support bearing |
-
1953
- 1953-11-28 CH CH311285A patent/CH311285A/en unknown
-
1954
- 1954-02-27 DE DEST7839A patent/DE1002015B/en active Pending
- 1954-03-02 GB GB6154/54A patent/GB747134A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012104367A1 (en) | 2011-02-02 | 2012-08-09 | Aktiebolaget Skf | Rolling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CH311285A (en) | 1955-11-30 |
| DE1002015B (en) | 1957-02-07 |
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