Abstract: A stringer for small, medium sized and large fish which includes a cotton stringer rope about twelve feet long. One end of the rope is secured to the fisherman's boat and the stringer tossed overboard. The end of the stringer in the water is securely joined to a small ring forming the upper end of a braided steel wire about eight inches long. A small ring also forms the lower end of the steel wire. A stainless steel pin connects the middle of a U shaped channel having two small holes near its opposite edges to the small ring forming the lower end of the steel wire. The pin is secured in place by a stainless steel rivet on each end of the pin.

Abstract: A sluice-gate wall thimble has a support stem (1, 12) which covers an embedment side of a sluice-gate nut (2) and is fixable to a wall anchor (5, 11). The sluice-gate nut is inside threaded and fixable to an embedment side (16) of a predetermined sluice-gate wall (7) with an axis of the sluice-gate nut being in line concentrically with an axis of a wall-bolt aperture (8) on the predetermined sluice-gate wall. A plurality of the support stems on a plurality of the sluice-gate nuts in line with a plurality of the wall-bolt apertures and fixed to at least one wall anchor are employed first to prevent encroachment of fluid concrete (3) or other foundation material onto inside-diameter threading (4) of the plurality of sluice-gate nuts during construction of a predetermined sluice gate.

Abstract: A stringer for small, medium sized and large fish which includes a cotton stringer rope about twelve feet long. One end of the rope is secured to the fisherman's boat and the stringer tossed overboard. The end of the stringer in the water is securely joined to a small ring forming the upper end of a braided steel wire about eight inches long. A small ring also forms the lower end of the steel wire. A stainless steel pin connects the middle of a U shaped channel having two small holes near its opposite edges to the small ring forming the lower end of the steel wire The pin is secured in place by a stainless steel rivet on each end of the pin.

Abstract: A fixable-seal sluice gate has a valve vise (18, 19, 25, 26, 31, 32) that forces a sluice-gate valve uniformly and tightly in sealing-surface contact with a domed seal ring (4) that is fixable conveniently and removably intermediate a sluice-gate plate (3) and a sluice-gate wall (1) of a sluice-gate flange that encompasses a valve side of a sluice-gate aperture (2). A plate locator on the valve vice sets the sluice-gate plate in predetermined sealing-contact position for select structure of the fixable-seal sluice gate. The domed seal ring is a plastic material such as Hypalon® having predetermined toughness to resist particle embedment in combination with having predetermined softness for select uses and objectives. A dome flange (5, 6) on one or both sides of a base of the domed seal ring is bracketed removably to optionally the sluice-gate wall or the sluice-gate plate for rigid, reliable, long-enduring and yet quick and convenient attachment and detachment of the domed seal ring.

Abstract: A gate to block fluid flow in a large conduit with the packing provided by fire hose or other tube extending though a U-shaped channel along the interface of the gate and the conduit surface. The tube can be a plain tube retained in the channel by retaining members attached to sides of the channel.