ROTATABLE SHAFT

• US 3,595,505 A
• Filed: 03/24/1969
• Issued: 07/27/1971
• Est. Priority Date: 03/24/1969
• Status: Expired due to Term

• Current Assignee: Burwell Neil Worrall, Meo Franklin Roosevelt Di
• Original Assignee: Burwell Neil Worrall, Meo Franklin Roosevelt Di
• Inventors: BURWELL NEIL WORRALL, MEO FRANKLIN ROOSEVELT DI
• Application Number:
  US04/809,662
• Time in Patent Office: 855 Days
• US Class Current: 248/539
• CPC Class Codes: H01Q 3/04 for varying one co-ordinate of the orientation
• CPC Class Codes: Y10T 403/7062 Clamped members

Abstract

An antenna rotator, hollow, drive shaft including a clamping member by which a round tubular antenna mast is securely held therein is described. The hollow shaft is mounted as part of a rotating device which provides relative rotational movement between the shaft and a housing.

Claims

1. A shaft for improved securing thereto of a second round tubular shaft by means of at least one V-shaped clamp at a point along the longitudinal length of said first-mentioned shaft wherein the bolt of said clamp has a V-shape between its parallel threaded ends, said first-mentioned shaft having an inner and outer surface with said inner surface adapted to receive said second shaft, said first-mentioned shaft having a V-shaped groove in the inner surface thereof extending along the entire longitudinal dimension of said first-mentioned shaft, and further including a boss located at a clamping point on the outside surface thereof forming an axial continuance of that portion of said first-mentioned shaft having said groove, said boss having a groove transverse to said longitudinal dimension which is adapted to receive the V-shaped portion of said bolt, said boss being enlarged radially outwardly of said outer surface and extending the width of said groove in said inner surface.

2. The shaft as claimed in claim 1 wherein said first-mentioned shaft is a hollow substantially tubular shaft.

3. The shaft as claimed in claim 1 wherein said first-mentioned shaft is hollow with said V-sahped groove in said first shaft extending along the entire length of said first-mentioned shaft, said boss forming said continuance of said first-mentioned shaft at one end thereof and a second boss on the outside surface of said first-mentioned shaft forming a continuance of that portion of said first-mentioned shaft including said groove at the other end thereof.

4. In an antenna rotator of the type providing relative rotational movement between a shaft and a housing including the combination of a first shaft rotatably mounted to the housing and having an inner and outer surface adaptable to receive a second shaft adjacent to said inner surface of the first shaft, there being a clamping means in the form of a V-shaped bolt and a V-shaped retaining clamp at a point along the length of said first shaft to attach said first shaft to said second shaft, the improvement comprising, said first shaft having a V-shaped groove extending in a straight line along the entire longitudinal dimension of that portion of said first shaft adaptable to receive said second shaft, and a boss forming an axial continuance of the outer surface of said first shaft and located at the clamping point, said boss having a groove transverse to said longitudinal dimension which is adapted to receive the V-shaped portion of said bolt so that the vertex of the V of said bolt is substantially on the same radius drawn from the center of said first shaft as the vertex of said V-shaped groove in said first shaft and the vertex of said V-shaped retaining clamp is opposed to the vertex of said V-shaped groove in said first shaft, said boss being enlarged radially outwardly Of said outer surface and extending the width of said groove in said inner surface.

5. The combination as claimed in claim 4 wherein said first shaft is a hollow tubular shaft and said second shaft is a hollow tubular shaft.

6. The combination as claimed in claim 5, wherein a boss is located on both longitudinal extremities of said first shaft and each boss has a V-shaped groove transverse to said longitudinal dimension adapted to receive the V-shape of a bolt having a V-shape between parallel threaded ends.