GB705246A - Improvements in or relating to pocket and like knives - Google Patents

Improvements in or relating to pocket and like knives

Info

Publication number
GB705246A
GB705246A GB2919552A GB2919552A GB705246A GB 705246 A GB705246 A GB 705246A GB 2919552 A GB2919552 A GB 2919552A GB 2919552 A GB2919552 A GB 2919552A GB 705246 A GB705246 A GB 705246A
Authority
GB
United Kingdom
Prior art keywords
cover plates
whistle
knives
pocket
plates
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
GB2919552A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2919552A priority Critical patent/GB705246A/en
Publication of GB705246A publication Critical patent/GB705246A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B11/00—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)

Abstract

705,246. Knives. WITTGENS, C. Nov. 19, 1952, No. 29195/52. Class 30 [Also in Group XXXVIII] A pocket or sheath knife comprises cover plates each having at one end a mouthpiece for a signal whistle and each having thereon a semi-cylindrical hollow member open at one end and forming the sound chamber for the whistle, the open end of each hollow member being arranged in front of the corresponding mouthpiece. As shown, air channels 7, 8 are formed by plates 5, 6 secured to extensions 3, 4 of cover plates 1, 2 and constitute the mouthpieces of the whistle, semi-cylindrical tubes 9, 10 also being welded to the cover plates and having open ends forming sound openings 11, 12. In modifications the sound chambers are pressed out of the cover plates or are moulded in cover plates of thermoplastic material and the mouthpieces are moulded in one end of the cover plate 8.
GB2919552A 1952-11-19 1952-11-19 Improvements in or relating to pocket and like knives Expired GB705246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2919552A GB705246A (en) 1952-11-19 1952-11-19 Improvements in or relating to pocket and like knives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2919552A GB705246A (en) 1952-11-19 1952-11-19 Improvements in or relating to pocket and like knives

Publications (1)

Publication Number Publication Date
GB705246A true GB705246A (en) 1954-03-10

Family

ID=10287653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2919552A Expired GB705246A (en) 1952-11-19 1952-11-19 Improvements in or relating to pocket and like knives

Country Status (1)

Country Link
GB (1) GB705246A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992002341A1 (en) * 1990-07-28 1992-02-20 Clamason Industries Limited Knives
EP1291139A1 (en) * 2001-08-31 2003-03-12 Gin-Sung Chang Multi-function cutter
FR2978369A1 (en) * 2011-07-29 2013-02-01 Opinel KNIFE HAVING A MEDIUM SOUND TRANSMITTER BY AIR PASSAGE
CN105965554A (en) * 2016-07-01 2016-09-28 阳江拓必拓科技股份有限公司 Folding knife with whistle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992002341A1 (en) * 1990-07-28 1992-02-20 Clamason Industries Limited Knives
EP1291139A1 (en) * 2001-08-31 2003-03-12 Gin-Sung Chang Multi-function cutter
FR2978369A1 (en) * 2011-07-29 2013-02-01 Opinel KNIFE HAVING A MEDIUM SOUND TRANSMITTER BY AIR PASSAGE
CN105965554A (en) * 2016-07-01 2016-09-28 阳江拓必拓科技股份有限公司 Folding knife with whistle
CN105965554B (en) * 2016-07-01 2018-10-16 阳江拓必拓工业技术研究院有限公司 A kind of jack knife with whistle

Similar Documents

Publication Publication Date Title
GB536066A (en) Improvements in or relating to electro-acoustic apparatus
GB753374A (en) Improvements in or relating to the art of making bags from thermo-plastic sheet material
GB705246A (en) Improvements in or relating to pocket and like knives
JPS5265421A (en) Vibration board for speaker
GB811318A (en) Improvements in or relating to interchangeable ticket holder units
GB384973A (en) Improvements in the emission of sounds by radiophonic receiving apparatus and talking machines
GB549227A (en) Improvements in or relating to baby's comforters
JPS5417828A (en) Headphone device
GB743653A (en) Improvements in toys
GB502156A (en) Improvements in or relating to hair drying appliances
AU163765B2 (en) Improvements inthe manufacture of microporous thermoplastic sheet material
JPS52129518A (en) Diaphragm for speaker
JPS5453522A (en) Headphone
JPS5323618A (en) Electrostatic type transducer
ES225057A3 (en) An acoustic ventanillo system (Machine-translation by Google Translate, not legally binding)
CA498509A (en) Electroacoustic transducers
CA490702A (en) Electroacoustic transducers
CA496187A (en) Electroacoustic transducers
CA491765A (en) Electroacoustic transducers
CA493734A (en) Electroacoustic transducers
AU156801B2 (en) Acoustic duct for electroacoustic transducer
AU161715B2 (en) Improvements in or relating to electroacoustic transducers
JPS5229898A (en) Process for producing low-density and rigid urethane foams having impr oved properties
GB828294A (en) Pillows
JPS53129621A (en) Diaphragm for speakers