Gun laying
First Claim
Patent Images
1. A gun laying aid characterised in that it includesa support member;
- a bearing indicating member pivotally mounted on the support member so as to be pivotable about a first axis and having an indicator portion extended in a plane parallel to the first axis;
a reference member rotatably mounted on the support member (2) so as to be rotatable about a second axis which intersects the first axis perpendicularly at a common intersection point;
a correction indicator pivotally mounted on the reference member so as to be pivotable about a third axis which intersects the second axis at the said common intersection intersection point and is contactable with the indicator portion of the bearing indicating member;
a measuring means co-operative with the reference member and the correction indicator conjointly so as to measure their relative angular displacement about the third axis; and
level indicating means arranged to indicate when the indicator portion of the bearing indicating member and the third axis lie in vertical planes.
1 Assignment
0 Petitions
Accused Products
Abstract
A gun laying aid for determining the offset in the bearing of a gun due to trunnion tilt. The gun laying aid has a support member on which are rotatably mounted a bearing indicator member and a reference member. A correction indicator is pivotally mounted on the reference member and held in contact with an indicator portion of the bearing indicator member. When correctly orientated, as indicated by the level indicating means, the amount of rotation of the correction indicator relative to the reference member is indicative of the offset of the gun bearing due to trunnion tilt, which rotation is measured by the measuring means.
117 Citations
11 Claims
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1. A gun laying aid characterised in that it includes
a support member; -
a bearing indicating member pivotally mounted on the support member so as to be pivotable about a first axis and having an indicator portion extended in a plane parallel to the first axis; a reference member rotatably mounted on the support member (2) so as to be rotatable about a second axis which intersects the first axis perpendicularly at a common intersection point; a correction indicator pivotally mounted on the reference member so as to be pivotable about a third axis which intersects the second axis at the said common intersection intersection point and is contactable with the indicator portion of the bearing indicating member; a measuring means co-operative with the reference member and the correction indicator conjointly so as to measure their relative angular displacement about the third axis; and level indicating means arranged to indicate when the indicator portion of the bearing indicating member and the third axis lie in vertical planes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification