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GB411107A - Improvements in navigation floats of the flare or smoke-producing type - Google Patents

Improvements in navigation floats of the flare or smoke-producing type

Info

Publication number
GB411107A
GB411107A GB3382332A GB3382332A GB411107A GB 411107 A GB411107 A GB 411107A GB 3382332 A GB3382332 A GB 3382332A GB 3382332 A GB3382332 A GB 3382332A GB 411107 A GB411107 A GB 411107A
Authority
GB
United Kingdom
Prior art keywords
bag
floats
navigation
flare
smokeproducing
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
GB3382332A
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.)
JAMES SCOTT DICK
Original Assignee
JAMES SCOTT DICK
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 JAMES SCOTT DICK filed Critical JAMES SCOTT DICK
Priority to GB3382332A priority Critical patent/GB411107A/en
Publication of GB411107A publication Critical patent/GB411107A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26Flares; Torches

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Bag Frames (AREA)

Abstract

411,107. Marine flares and smokeproducing floats. GOOLDEN, A. C., JAMES, F., and DICK, J. S., Research Department, Woolwich Arsenal, London. Nov. 29, 1932, No. 33823. [Class 9 (ii).] A marine flare or smokeproducing float, intended especially for dropping for aircraft for navigation' purposes, is provided with an expansible buoyancy chamber such as a fabric bag which is filled with gas generated when the device drops in water. As shown, a canister a containing calcium phosphide is fitted with an expansible buoyancy chamber in the form of an inner fabric bag c surrounded by an outer fabric bag d. Before the device is dropped, a seal b is torn off by a string e passing out at the top of the bag c. And when the device falls in water, phosphine is generated and expands the bag c, causing the device to rise to the surface. The phosphine then escapes through a hole h near the bottom of the bag c into the outer bag d, from which it escapes by a funnel f at the top where it ignites spontaneously. The upper part of the bag d is made of wool or other material which is not inflammable or not readily combustible ; and the bottom of the bag is provided with an outlet g.
GB3382332A 1932-11-29 1932-11-29 Improvements in navigation floats of the flare or smoke-producing type Expired GB411107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3382332A GB411107A (en) 1932-11-29 1932-11-29 Improvements in navigation floats of the flare or smoke-producing type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3382332A GB411107A (en) 1932-11-29 1932-11-29 Improvements in navigation floats of the flare or smoke-producing type

Publications (1)

Publication Number Publication Date
GB411107A true GB411107A (en) 1934-05-29

Family

ID=10357910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3382332A Expired GB411107A (en) 1932-11-29 1932-11-29 Improvements in navigation floats of the flare or smoke-producing type

Country Status (1)

Country Link
GB (1) GB411107A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110259A (en) * 1961-08-16 1963-11-12 Edward F Van Dersarl Signal device and composition therefor
US5331897A (en) * 1975-08-07 1994-07-26 The United States Of America As Represented By The Secretary Of The Navy Ship decoy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110259A (en) * 1961-08-16 1963-11-12 Edward F Van Dersarl Signal device and composition therefor
US5331897A (en) * 1975-08-07 1994-07-26 The United States Of America As Represented By The Secretary Of The Navy Ship decoy

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