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公开(公告)号：US3597870A
公开(公告)日：1971-08-10
申请号：US3597870D
申请日：1969-06-25
申请人： BLOCK ENGINEERING
发明人： BLOCK MYRON J
CPC分类号： F41A19/21
摘要： A multiple-barrel hand weapon with selective barrel discharge capability containing a like number of cartridges and having a selectively adjustable arming mechanism so that a shooter can fire each cartridge individually by successive actuations of the trigger or, alternatively, can fire groups of cartridges simultaneously upon successive actuations of the trigger.
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公开(公告)号：US3072742A
公开(公告)日：1963-01-08
申请号：US82375059
申请日：1959-06-29
申请人： BLOCK ENGINEERING
发明人： BLOCK MYRON J
CPC分类号： G02B1/06 , H04N5/7425
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3.发明授权
公开(公告)号：US3558898A
公开(公告)日：1971-01-26
申请号：US3558898D
申请日：1966-10-03
申请人： BLOCK ENGINEERING
发明人： BLOCK MYRON J , ZACHOR ALEXANDER S
摘要： This invention is a flow measuring system using a pair of radiation detectors spaced from one another, and corresponding optical systems for imaging volume elements of a flow stream onto the radiation detectors. In one embodiment, the optical system is disposed to examine two separate volume elements spaced along the line of the flow stream. The radiation detectors provide electrical signals which are then time correlated. In another embodiment, the two optical systems have intersecting fields of view so as to examine a common volume element. One optical system s movable so that one can examine a series of common volume elements along a line substantially normal to the flow stream. The correlation of the signal from the two detectors in the latter embodiment permits measurement of the radiation profile across the flow stream.
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