Cable length and tension measuring device
AssigneeHalliburton Company
InventorDavid R. Larimore
Life of this patent
Estimating the term…
Abstract
A measuring device for measuring length of flexible line moved through the device along with tensile force in moving or stationary line. The device has a grooved counterwheel and pressure wheels pressing the line into a groove around the counterwheel and includes adjusters for adjusting the pressing force exerted by each pressure wheel on the line. A load cell mounted on the device is used to measure the resultant force on the counterwheel from tensile force in the line. A counter or counterdrive is connectible to the counterwheel shaft.
Claims9
A combination measuring device for measuring length of flexible line moved through the device and any tensile force in moving or stationary flexible line comprising:
- (a) a frame;
- (b) a counterwheel having a groove around for receiving flexible line;
- (c) means for mounting said counterwheel to rotate on said frame;
- (d) pressure wheels mounted on said frame for pressuring said flexible line into said counterwheel groove;
- (e) means for adjusting the pressing force each pressure wheel exerts on said flexible line, said adjusting means including:
- slots in said frame, each said slot having a guide surface,
- a shaft mounted for movement in each slot with a pressure wheel mounted for rotation on each shaft, said shaft having a guide surface slidably engageable with said slot guide surface;
- means for moving said shaft in said slot;
- and
- (f) a load cell mounted on said frame for measuring the force on said counterwheel resulting from tensile force in said flexible line.
A measuring device for measuring length of flexible line moved through the device and tensile force in the line comprising:
- (a) a frame having slots therethrough, each said slot having at least one guiding surface;
- (b) a counterwheel mounted to rotate on said frame, said counterwheel having a groove around for receiving flexible line;
- (c) means for mounting said counterwheel including a shaft;
- (d) a counter connected to said shaft;
- (e) pressure wheels for pressure flexible line into said counterwheel groove, each said pressure wheel mounted to rotate an a shaft extending through a frame slot, each shaft having at least one guiding surface slidably engageable with said slot guiding surface;
- (f) means pro moving each pressure wheel shaft to adjust the pressure force each said pressure wheel exerts on said flexible line, said moving means including:
- a bolt extending through said frame;
- a nut threadedly engaged on said bolt, said nut having a camming surface slidably engaging said pressure wheel shaft;
- (g) a load cell for measuring force on said counterwheel resulting from tensile force in the flexible line, said load cell having an axis and a gauge connected thereto, said load cell mounted on said frame so that said load cell axis is along a line bisecting the angle between said pressure wheels and passing through the center of said counterwheel shaft.
Dependencies are inferred from the claim text.