Brake means for an air-powered sprinkler system

Fluid handling – With casing – support – protector or static constructional... – Vehicle

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

188313, 239177, B05B 312

Patent

active

040057291

ABSTRACT:
A brake for a fluid-powered sprinkler system is provided for preventing the drive towers from rolling down inclines and for preventing the wind from rolling the drive towers. The fluid power may either be compressed air or water under pressure. An overhead water supply pipe extends outwardly from the center pivot point and is supported by a plurality of spaced-apart wheeled drive towers. In the preferred embodiment, an air-powered drive is provided on each of the towers to propel the towers and water supply pipe around the center pivot point. A control is provided on each of the towers for selectively operating the drive associated therewith to maintain the pipe and towers in an aligned condition as the water supply pipe is pivoted around the central pivot point. The control comprises a rotary cam plate having an alignment rod secured thereto which extends to the gimbal ring on a flexible joint positioned on the water supply pipe adjacent the tower. The rotary cam plate controls the operation of a first fluid-powered cylinder which is pivotally connected to a trojan bar mounted on the drive tower for reciprocating movement. The trojan bar is provided with downwardly extending dogs on its opposite ends which engage the drive wheels to rotate the same on actuation of the first fluid-powered cylinder. A brake member is rotatably mounted on at least one of the towers adjacent one of the drive wheels and is in operative engagement with the drive lugs extending from the drive wheels so that the brake member will be rotated by the drive lugs as the wheel is rotated. A second fluid-powered cylinder is mounted on the tower and has a cylinder rod extending therefrom which is connected to the brake member so that rotation of the brake member causes the cylinder rod to extend from the cylinder and to retract into the cylinder. The second cylinder normally prevents rotation of the brake member thereby preventing rotation of the wheel. A brake release apparatus is operatively connected to the second cylinder and to a lug actuated valve switch on the trojan bar to permit the cylinder rod to freely extend and retract when the valve switch is in engagement with one of the drive lugs when the trojan bar moves in one direction. If the tower moves faster than intended during the drive stroke, the second cylinder prevents rotation of the brake thereof. The second cylinder also prevents rotation of the brake member during the return stroke of the trojan bar.

REFERENCES:
patent: 2281818 (1942-05-01), Ash
patent: 2715389 (1955-08-01), Johnson
patent: 3606161 (1971-09-01), Paul
patent: 3766937 (1973-10-01), Lundvall et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Brake means for an air-powered sprinkler system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brake means for an air-powered sprinkler system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake means for an air-powered sprinkler system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1087410

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.