Sport speedometer

Claim 2

In an air flow measuring sport speedometer composed of a housing carrying an indicator scale and defining an air guide channel and an air entrance opening via which air moving past an object whose velocity is to Be measured passes from the region outside the housing into the channel, and an air velocity indicator including a paddle blade mounted in the housing to extend into the channel and arranged to pivot relative to the housing under the influence of the air flowing through the channel, the improvement comprising: means for fastening the housing to the object whose velocity is to be measured in such a manner that the housing has any desired orientation about a first axis defined by the object; means providing a pivot connection between said fastening means and said housing for permitting said housing to be given any desired orientation relative to said fastening means about a second axis normal to said first axis; retaining means disposed between said fastening means and said housing for automatically retaining said housing in the selected orientation relative to said fastening means, whereby said entrance opening can be placed in the desired orientation relative to the air flow independently of the orientation of said fastening means; and wherein said paddle blade is provided at its end with a velocity indication pointer arranged to cooperate with said indicator scale, said housing carries two indicator scales oriented transverse to one another and said paddle blade and its associated pointer are arranged to cooperate with both of said indicator scales.

Claim 3

An arrangement as defined in claim 1 wherein said air entrance opening lies in a plane approximately perpendicular to the pivot plane between said housing and said fastening means.

Claim 4

An arrangement as defined in claim 2 further comprising air guide vane means disposed in said air guide channel at said air entrance opening for directing air flowing through said opening toward said paddle blade.

Claim 5

In an air flow measuring sport speedometer composed of a housing carrying an indicator scale and defining an air guide channel and an air entrance opening for the passage, from the region outside the housing into the channel, of air past an object whose velocity is to be measured, an air velocity indicator including a paddle blade mounted in the housing to extend into the channel and arranged to pivot relative to the housing under the influence of the air flowing through the channel, and means for fastening the housing to the object whose velocity is to be measured, the improvement comprising: means connected between said fastening means to said housing for permitting the orientation of said housing relative to said fastening means to be selectively varied; retaining means disposed between said fastening means and said housing for automatically retaining said housing in the selected orientation relative to said fastening means, whereby said entrance opening can be placed in the desired orientation relative to the air flow independently of the orientation of said fastening means; and counterweight support means connected to said paddle blade, said counterweight support means and said paddle blade being located at respectively opposite sides of the pivot axis of said paddle blade.

Claim 6

In an air flow measuring sport speedometer composed of a housing carrying an indicator scale and defining an air guide channel and an air entrance opening for the passage, from the region outside the housing into the channel, of air past an object whose velocity is to be measured, an air velocity indicator including a paddle blade mounted in the housing to extend into the channel and arranged to pivot relative to the housing under the influence of the air flowing through the channel, and means for fastening the housing to the object whose velocity is to be measured, the improvement comprising: means connected between said fastening means to said housing for permitting the orientation of said housing relative to said fastening means to be selectively varied; retaining means disposed between said fastening means and said housing for automatically retaining said housing in the selected orientation relative to said fastening means, whereby said entrance opening can be placed in the desired orientation relative to the air flow independently of the orientation of said fastening means; and counterweight support means connected to said paddle blade, said counterweight support means and said paddle blade being located at respectively opposite sides of the pivot axis of said paddle blade.

Claim 7

An arrangement as defined in claim 4 further comprising a tension spring connected to said paddle blade for applying to said blade a biasing force tending to urge said blade toward its minimum air velocity indicating position.

Claim 8

In an air flow measuring sport speedometer composed of a housing carrying an indicator scale and defining an air guide channel and an air entrance opening via which air moving past an object whose velocity is to be measured passes from the region outside the housing into the channel, and means for fastening the housing to the object whose velocity is to be measured, the improvement comprising: means connected between said fastening means to said housing for permitting the orientation of said housing relative to said fastening means to be selectively varied; retaining means disposed between said fastening means and said housing for automatically retaining said housing in the selected orientation relative to said fasTening means, whereby said entrance opening can be placed in the desired orientation relative to the air flow independently of the orientation of said fastening means; an instantaneous air velocity indicator including a paddle blade mounted in the housing to extend into the channel and arranged to pivot relative to the housing under the influence of the air flowing through the channel, a velocity indication pointer provided at the end of said paddle blade and arranged to cooperate with said indicator scale; and a drag pointer disposed in said housing and mounted to pivot relative to said housing about an axis parallel to the pivot axis of said paddle blade, said drag pointer being mounted to be pivoted by said paddle blade to traverse said scale in the direction of increasing air flow velocity indications and to automatically remain at the maximum air flow velocity indication attained by said paddle blade, and wherein said housing carries two indicator scales oriented transverse to one another and said paddle blade and its associated pointer are arranged to cooperate with both of said indicator scales.

Claim 9

In an air flow measuring sport speedometer composed of a housing carrying an indicator scale and defining an air guide channel and an air entrance opening via which air moving past an object whose velocity is to be measured passes from the region outside the housing into the channel, and means for fastening the housing to the object whose velocity is to be measured, the improvement comprising: means connected between said fastening means to said housing for permitting the orientation of said housing relative to said fastening means to be selectively varied; retaining means disposed between said fastening means and said housing for automatically retaining said housing in the selected orientation relative to said fasTening means, whereby said entrance opening can be placed in the desired orientation relative to the air flow independently of the orientation of said fastening means; an instantaneous air velocity indicator including a paddle blade mounted in the housing to extend into the channel and arranged to pivot relative to the housing under the influence of the air flowing through the channel, a velocity indication pointer provided at the end of said paddle blade and arranged to cooperate with said indicator scale; and a drag pointer disposed in said housing and mounted to pivot relative to said housing about an axis parallel to the pivot axis of said paddle blade, said drag pointer being mounted to be pivoted by said paddle blade to traverse said scale in the direction of increasing air flow velocity indications and to automatically remain at the maximum air flow velocity indication attained by said paddle blade, and wherein said housing carries two indicator scales oriented transverse to one another and said paddle blade and its associated pointer are arranged to cooperate with both of said indicator scales.

Claim 10

An arrangement as defined in claim 6 further comprising reset means mounted on, and extending to the region outside, said housing and operatively associated with said drag pointer for returning said drag pointer to its minimum velocity indication position.