Other

Emerson Electric Company

Peter E Galloway

Peter L Wilson

A ratchet block comprised of a frame, movable sheave assembly, ratchet assembly, ratchet assembly and cam wherein the ratchet automatically engages under load permitting rotation of the sheave in only one direction, and disengages when the load is removed permitting rotation in both directions. This automatic engagement and disengagement of the ratchet to increase or reduce friction when a rope or wire is run through the sheave does not require the user to disengage the ratchet mechanism with a conventional switch.

Automatic ratchet block

A ratchet block comprised of a frame, moveable sheave assembly, ratchet assembly and cam wherein the ratchet automatically engages under load permitting rotation of the sheave in only one direction, and disengages when the load is removed permitting rotation in both directions. This automatic engagement and disengagement of the ratchet to increase or reduce friction when a rope or wire is run through the sheave does not require the user to disengage the ratchet mechanism with a conventional switch.

Masthead device for sailboats that indicates apparent wind direction composed of a rotating wind vane and a protractor arm encompassing multiple reference marks. These marks can be adjusted with greater compass accuracy to allow several settings in each quadrant creating a series of reference points enabling one to more accurately determine the apparent wind angle from a center point, and thus optimize sail trim, heading and boat speed.

Apparent wind direction indicator

A precision, high load capacity linear actuator apparatus incorporating a rotary-actuated cam is disclosed. A moveable load carriage assembly containing a cam member mounted on bearings therein is free to ride linearly on stationary tracks. The cam member engages stationary cam followers mounted on the stationary tracks' support. In the preferred embodiment, a linear ball-slide mechanism supported in bearings at each end of the stationary track passes through the cam member, with its linear slide member attached to the cam's center bore. Rotary actuation of the linear ball-slide shaft causes rotation of the cam member which is converted into a linear motion of the load carriage along the stationary track. Thus, linear positioning of the load carriage is effected through rotary positioning of the ball-slide shaft through associated motor means. In an alternate embodiment, to be utilized where extremely long linear strokes are required, the drive motor assembly is mounted directly to and travels with the moveable load carriage assembly so as to directly drive the cam member.

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Wilton, CT, United States of America

Peter E Galloway