GB202200A - Improvements in and relating to safety pins - Google Patents
Improvements in and relating to safety pinsInfo
- Publication number
- GB202200A GB202200A GB2758722A GB2758722A GB202200A GB 202200 A GB202200 A GB 202200A GB 2758722 A GB2758722 A GB 2758722A GB 2758722 A GB2758722 A GB 2758722A GB 202200 A GB202200 A GB 202200A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guard
- casing
- pin
- balls
- head
- 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
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B9/00—Hat, scarf, or safety pins or the like
- A44B9/02—Simple pins
- A44B9/10—Safety devices
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
202,200. Johnson, M. A. Oct. 11, 1922. Point protectors and retaining-devices for pins. -In a point protector and safety device for pins of the type comprising a guard member and locking-balls, the pin is formed with a groove adapted to be engaged by the balls, and the guard member is formed with a shoulder in the bore and is attached to the pin by a chain &c. The protector comprises a casing 6, Fig. 1. attached to the head 3 of the pin 1 by a chain 5, having open ends and tapering slightly at the inner end 10, Fig. 2. Sliding within the casing is a guard member 9 having a central bore 12 formed with a shoulder 21 so that the point of the pin cannot come into contact with the closed end 13 of the guard. At the inner end of the guard is a head 15, with radial holes 19 in which slide balls 18, and the outer end 13 of the guard projects from the casing 6. Between the bead 15 of the guard and the outer end of the casing is a coil spring 17 tending to press the head inwards towards the tapered end of the casing, and so force the balls into an annular groove 20 in the pin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2758722A GB202200A (en) | 1922-10-11 | 1922-10-11 | Improvements in and relating to safety pins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2758722A GB202200A (en) | 1922-10-11 | 1922-10-11 | Improvements in and relating to safety pins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB202200A true GB202200A (en) | 1923-08-16 |
Family
ID=10262056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2758722A Expired GB202200A (en) | 1922-10-11 | 1922-10-11 | Improvements in and relating to safety pins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB202200A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105492316A (en) * | 2014-11-04 | 2016-04-13 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller and aircraft both having same |
CN105517892A (en) * | 2014-11-04 | 2016-04-20 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller provided with locking mechanism, and air vehicle |
-
1922
- 1922-10-11 GB GB2758722A patent/GB202200A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105492316A (en) * | 2014-11-04 | 2016-04-13 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller and aircraft both having same |
CN105517892A (en) * | 2014-11-04 | 2016-04-20 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller provided with locking mechanism, and air vehicle |
WO2016070335A1 (en) * | 2014-11-04 | 2016-05-12 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller provided with locking mechanism, and air vehicle |
WO2016070334A1 (en) * | 2014-11-04 | 2016-05-12 | 深圳市大疆创新科技有限公司 | Locking mechanism, propeller and aircraft both having same |
JP2017512695A (en) * | 2014-11-04 | 2017-05-25 | エスゼット ディージェイアイ テクノロジー カンパニー リミテッドSz Dji Technology Co.,Ltd | Lock mechanism, propeller having lock mechanism, and aircraft |
CN105492316B (en) * | 2014-11-04 | 2018-06-12 | 深圳市大疆创新科技有限公司 | Locking mechanism has the propeller and aircraft of locking mechanism |
CN105517892B (en) * | 2014-11-04 | 2018-06-12 | 深圳市大疆创新科技有限公司 | Locking mechanism has the propeller and aircraft of locking mechanism |
US10625845B2 (en) | 2014-11-04 | 2020-04-21 | SZ DJI Technology Co., Ltd. | Lock mechanism, propeller having a lock mechanism, and aerial vehicle |
US10647409B2 (en) | 2014-11-04 | 2020-05-12 | SZ DJI Technology Co., Ltd. | Propeller and aerial vehicle, containing locking device |
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