GB826136A - Improvements in and relating to screw threads for optical apparatus - Google Patents

Improvements in and relating to screw threads for optical apparatus

Info

Publication number
GB826136A
GB826136A GB3848/56A GB384856A GB826136A GB 826136 A GB826136 A GB 826136A GB 3848/56 A GB3848/56 A GB 3848/56A GB 384856 A GB384856 A GB 384856A GB 826136 A GB826136 A GB 826136A
Authority
GB
United Kingdom
Prior art keywords
thread
flanks
threads
nut
bolt
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
Application number
GB3848/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voigtlander AG
Original Assignee
Voigtlander AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voigtlander AG filed Critical Voigtlander AG
Publication of GB826136A publication Critical patent/GB826136A/en
Expired legal-status Critical Current

Links

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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lens Barrels (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

826,136. Screw threads. VOIGTLANDER A.G. Feb. 7, 1956 [Feb. 8, 1955], No. 3848/56. Class 80 (3). [Also in Group XX] In an optical system in which screw threads are used in assembling or adjusting the optical elements the threads are made self-centring by making those flanks upon which the pressure comes at an angle to the axis of the thread which is less than 60 degrees and providing a space between the other flank and the corresponding flank of the counter-thread. The principle of the device is indicated in Fig. 1 in which a bolt 1 having a thread 2 of which the flanks 8 are inclined to the axis 5 at an angle α less than 60 degrees is screwed into a nut 7. By virtue of the slope of the flanks 8 and the space 3 between the other flanks of the thread and the counterthread in the nut 7, in screwing the bolt the flanks 8 slide on the counter thread to centre the bolt on the axis of the nut. The threads 2 may be symmetrical or saw-toothed (Fig. 2) the angle being about 45 degrees. Fig. 4 shows an objective comprising a member 15 having a focusing thread a pressed by a spring 27 against a counter-thread in a support 14, and carrying lenses 17, 22, 23 held in place by self-centring threads b, c and d.
GB3848/56A 1955-02-08 1956-02-07 Improvements in and relating to screw threads for optical apparatus Expired GB826136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE826136X 1955-02-08

Publications (1)

Publication Number Publication Date
GB826136A true GB826136A (en) 1959-12-31

Family

ID=6747714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3848/56A Expired GB826136A (en) 1955-02-08 1956-02-07 Improvements in and relating to screw threads for optical apparatus

Country Status (2)

Country Link
FR (1) FR1140284A (en)
GB (1) GB826136A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489263A1 (en) * 2003-06-19 2004-12-22 ABB Turbo Systems AG Shaft-hub connection
CN109915457A (en) * 2018-04-07 2019-06-21 玉环胜友工具有限公司 The bolts and nuts connection structure of the symmetrical two-way tapered thread of class dumbbell shaped
CN110005681A (en) * 2018-04-07 2019-07-12 玉环胜友工具有限公司 The connection structure of class olive-shaped symmetrical two-way tapered thread internal screw thread and conventional threads
CN110017321A (en) * 2018-04-07 2019-07-16 玉环胜友工具有限公司 The symmetrical two-way tapered thread auxiliary connection of class dumbbell shaped
CN110043547A (en) * 2018-04-07 2019-07-23 玉环胜友工具有限公司 The olive-shaped asymmetric double of class is to tapered thread internal screw thread and conventional threads connection structure
CN110043553A (en) * 2018-04-07 2019-07-23 玉环胜友工具有限公司 Dumbbell shaped taper asymmetric double left small and right large is to tapered thread auxiliary connection
WO2019192566A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure having dumbbell-shaped bidirectional tapered external thread and traditional thread having large left taper and small right taper
WO2019192574A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure having dumbbell-shaped symmetrical bidirectional tapered thread external thread and traditional thread
WO2019192551A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure of bolt and nut with olive-shaped bidirectional conical thread having small left taper and large right taper

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1489263A1 (en) * 2003-06-19 2004-12-22 ABB Turbo Systems AG Shaft-hub connection
US6918723B2 (en) 2003-06-19 2005-07-19 Abb Turbo Systems Ag Shaft/hub connection
CN109915457A (en) * 2018-04-07 2019-06-21 玉环胜友工具有限公司 The bolts and nuts connection structure of the symmetrical two-way tapered thread of class dumbbell shaped
CN109973495A (en) * 2018-04-07 2019-07-05 玉环胜友工具有限公司 The bolts and nuts connection structure of the olive-shaped symmetrical two-way tapered thread of class
CN110005681A (en) * 2018-04-07 2019-07-12 玉环胜友工具有限公司 The connection structure of class olive-shaped symmetrical two-way tapered thread internal screw thread and conventional threads
CN110017321A (en) * 2018-04-07 2019-07-16 玉环胜友工具有限公司 The symmetrical two-way tapered thread auxiliary connection of class dumbbell shaped
CN110043547A (en) * 2018-04-07 2019-07-23 玉环胜友工具有限公司 The olive-shaped asymmetric double of class is to tapered thread internal screw thread and conventional threads connection structure
CN110043544A (en) * 2018-04-07 2019-07-23 玉环胜友工具有限公司 Dumbbell shaped taper two-way conical internal thread left small and right large and conventional threads connection structure
CN110043553A (en) * 2018-04-07 2019-07-23 玉环胜友工具有限公司 Dumbbell shaped taper asymmetric double left small and right large is to tapered thread auxiliary connection
WO2019192566A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure having dumbbell-shaped bidirectional tapered external thread and traditional thread having large left taper and small right taper
WO2019192574A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure having dumbbell-shaped symmetrical bidirectional tapered thread external thread and traditional thread
WO2019192549A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Olive-shaped bidirectional tapered internal thread and conventional thread connection structure having large left taper and small right taper
WO2019192571A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Bolt and nut connection structure having dumbbell-like symmetrical bidirectional tapered thread
WO2019192570A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure having dumbbell-shaped bidirectional tapered external thread and traditional thread having small left taper and large right taper
WO2019192556A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection pair for symmetrical bidirectional conical thread having olive-like shape
WO2019192555A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure of bolt and nut of thread outlining symmetrically and bidirectionally tapered olivary shape
WO2019192553A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure of traditional thread and internal thread outlining bidirectionally tapered olivary shape having smaller left-end conical degree
WO2019192551A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure of bolt and nut with olive-shaped bidirectional conical thread having small left taper and large right taper
WO2019192572A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Dumbbell-shaped symmetric bidirectional tapered thread connection pair
WO2019192564A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Dumbbell-shaped asymmetric bidirectional tapered thread connection pair having larger left taper and small right taper
WO2019192557A1 (en) * 2018-04-07 2019-10-10 玉环胜友工具有限公司 Connection structure of internal thread and traditional thread with symmetrical bidirectional conical thread having olive-like shape
WO2019192576A1 (en) * 2018-04-07 2019-10-10 游奕华 Connection structure of internal thread and traditional thread with asymmetrical bidirectional conical thread having dumbbell-like shape
WO2019192578A1 (en) * 2018-04-07 2019-10-10 游奕华 Dumbbell-like and olive-like asymmetric bidirectional taper threaded connection pair

Also Published As

Publication number Publication date
FR1140284A (en) 1957-07-18

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