Abstract: A platform system useful for constructing, maintaining, or repairing greenhouse roofs comprises a platform section providing a working area surface formed with removable treads supported on left and right platform rails. The platform section is supported by downwardly projecting upper and lower support bases appointed to rest on structural members of the roof, thereby providing a clearance between the working area surface and the roof beneath. Guardrails extend along the sides of the platform section between guardrail posts attached at the upper and lower ends of the platform rails. The system is light-weight, minimizing the loading imposed on the roof and permitting it to be readily positioned by a small work crew. The support base may include retractable rollers that permit it to be slid upward across the eaves and onto the roof. A deployment assist cart may be used to erect, support, and access the platform system.

Abstract: A bag hanger device for holding a flexible bag containing a flowable material having a multi-sided, D-shaped or circular frame; a cross-member having two ends wherein one end is attached to one side of the frame and an opposite end is unattached to the frame; a closing device attached to an opposite end of the cross-member; a locking device attached to the frame opposite the closing device and in alignment with the closing device attached to the cross-member; at least one hanging means attached to the cross-member for holding the bag hanger device and a flexible bag attached thereto in a dispensing system; wherein the bag hanger device when inserted into the flexible bag having at least one pocket enables engagement of the closing device with the locking device and holds the flexible bag in a position to prevent collapse, wrinkling or deformation of the flexible bag.

Abstract: A bag hanger device for holding a flexible bag containing a flowable material having a multi-sided, D-shaped or circular frame; a cross-member having two ends wherein one end is attached to one side of the frame and an opposite end is unattached to the frame; a closing device attached to an opposite end of the cross-member; a locking device attached to the frame opposite the closing device and in alignment with the closing device attached to the cross-member; at least one hanging means attached to the cross-member for holding the bag hanger device and a flexible bag attached thereto in a dispensing system; wherein the bag hanger device when inserted into the flexible bag having at least one pocket enables engagement of the closing device with the locking device and holds the flexible bag in a position to prevent collapse, wrinkling or deformation of the flexible bag.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine, and an apparatus for performing such method, that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process. The yarn includes discontinuous and, optionally, continuous filaments.