Abstract: A frame and panel for tensioning fabric such as a silkscreen mesh is described. The panel includes locking strips secured to the edges using stitching through the mesh and locking strips. A method for fabricating the frame and panel, and tensioning the panel on a frame is also described. Locking strips may be stitched to edges of the fabric or mesh.

Abstract: A fuel cell stack (50) includes fuel cells (16, 18, 19) with anode and cathode water transport plates (23, 31, 34, 37) having porosity of at least 50%, thereby to significantly increase the amount of water stored within the water transport plates when the stack is shut down, which doubles the heat of fusion as the ice in the pores melts during a startup following freeze. This extends the period of time before the water in the pores reaches a hard freeze at ?20° C. from 180 hours to 280 hours. A controller (60) controls the bypass (55) of a heat exchanger (54) to cause the temperature of the stack to reach a temperature sufficient to raise the sensible heat of the stack by 20%-40% above what it is with the fuel cell power plant operating steady state, prior to being shut down, thereby increasing the hours required for the fuel cell to cool down to 0° C. in ?20° C. environment from 60 hours to 90 hours, allowing easier startups when shut down for less than 90 hours.

Abstract: In an apparatus for the application of a liquid or pasty substance onto a traveling material web, notably of paper or cardboard, a doctor bar serving the metering of the applied substance is composed of at least two bar segments strung together in the longitudinal direction of the doctor bar and fixedly joined to one another. Possible thereby, in the manufacture of the doctor bar, is an easier handling and a better compliance with accuracy requirements.

Abstract: A paint roller includes a handle rotatably supporting an inner clamping roller, an outer covering roller disposed about and spaced from the inner clamping roller, and a covering material carried by the outer covering roller. A padded layer is disposed between the outer covering roller and the covering material. The outer covering roller has longitudinal ends, and the covering material has longitudinal end sections which extend over the longitudinal ends of the outer covering roller and which are disposed in the space between the inner clamping roller and the outer covering roller.

Abstract: A roller for conveying web in a resin coating environment is formed by a core having solid polymeric material layers arranged on opposite end portions of a pressure sensitive layer. Means of securing the polymeric material layer to the core is provided to prevent the polymeric material from moving axially along the core. Hence, the polymeric material layer and pressure sensitive layer are arranged on the core to form a generally uniform rotatable web transport surface for conveying web exposed to molten polyethylene resin without the web transfer surface bearing the web being attacked and wetted with the coating material.

Abstract: Apparatus for applying paint to walls includes a paint roller, a rotating tube and a rag which is wrapped around and secured to the tube. The tube may be made of a flexible material, and has openings for securing the rag to the tube. A plurality of openings may be arranged around the circumference of the tube at both ends thereof. The apparatus may be used to create marble-like patterns on the wall, similar to that obtained by rag rolling or sponging paint on walls by hand.

Abstract: A gimballed roller automatically positions itself with regards to a moving web of material to minimize misalignment forces on the web material and additionally incorporates a feature of being quickly adjusted by an operator to accommodate different widths of web material.

Abstract: An epoxy floor roller tool formed by spirally winding a continuous strip of carding cloth having wires protruding outwardly therefrom around a roller core tube. The carding cloth wires are made of a cadmium plated steel which allows the wires to remain rigid even though quite thin and densely packed, whereby when the roller tool is rolled against a wet epoxy material spread over a floor surface, the wires will break even very small, closely spaced air bubbles in the epoxy, allowing the air to be released so that the voids caused by the air bubbles will flow closed without cratering before the epoxy hardens.