GB202200A - Improvements in and relating to safety pins - Google Patents

Improvements in and relating to safety pins

Info

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
Application number
GB2758722A
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.)
MAGNUS ALBIN JOHNSON
Original Assignee
MAGNUS ALBIN JOHNSON
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 MAGNUS ALBIN JOHNSON filed Critical MAGNUS ALBIN JOHNSON
Priority to GB2758722A priority Critical patent/GB202200A/en
Publication of GB202200A publication Critical patent/GB202200A/en
Expired legal-status Critical Current

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.
GB2758722A 1922-10-11 1922-10-11 Improvements in and relating to safety pins Expired GB202200A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (9)

* Cited by examiner, † Cited by third party
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
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
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
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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