JPS577781A - Hatch cover - Google Patents

Hatch cover

Info

Publication number
JPS577781A
JPS577781A JP8148280A JP8148280A JPS577781A JP S577781 A JPS577781 A JP S577781A JP 8148280 A JP8148280 A JP 8148280A JP 8148280 A JP8148280 A JP 8148280A JP S577781 A JPS577781 A JP S577781A
Authority
JP
Japan
Prior art keywords
antideflection
top plate
hatch cover
predetermined angle
2aw2d
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.)
Pending
Application number
JP8148280A
Other languages
Japanese (ja)
Inventor
Masanobu Ogushi
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.)
MacGregor Far East Ltd
Original Assignee
MacGregor Far East Ltd
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 MacGregor Far East Ltd filed Critical MacGregor Far East Ltd
Priority to JP8148280A priority Critical patent/JPS577781A/en
Publication of JPS577781A publication Critical patent/JPS577781A/en
Pending legal-status Critical Current

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  • Particle Accelerators (AREA)

Abstract

PURPOSE: To maintain the same antideflection effect as prior antideflection material while reducing length of beam material for use by disposing each antideflection material slanted at a predetermined angle to the center line of each side of a top plate on a hatch cover.
CONSTITUTION: Antideflection materials 3A, 3B, 3C... are disposed slanting at a predetermined angle θ to the center lines X-X, Y-Y of each side of a top plate 1 on a hatch cover consisting of the rectangular top plate 1 and vertical plate portions 2AW2D depending from the periphery of the top plate by a predetermined depth.
COPYRIGHT: (C)1982,JPO&Japio
JP8148280A 1980-06-18 1980-06-18 Hatch cover Pending JPS577781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8148280A JPS577781A (en) 1980-06-18 1980-06-18 Hatch cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8148280A JPS577781A (en) 1980-06-18 1980-06-18 Hatch cover

Publications (1)

Publication Number Publication Date
JPS577781A true JPS577781A (en) 1982-01-14

Family

ID=13747614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8148280A Pending JPS577781A (en) 1980-06-18 1980-06-18 Hatch cover

Country Status (1)

Country Link
JP (1) JPS577781A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322405A (en) * 1991-10-30 1994-06-21 Pacific Coast Cement Corporation Dust control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322405A (en) * 1991-10-30 1994-06-21 Pacific Coast Cement Corporation Dust control system

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