Abstract: Flexible pipe used to supply water to remotely located drilling rigs, typically made from a suitable synthetic resin such as polyethylene, is laid and retrieved from spools or reels mounted with a vehicle as the vehicle is moving. The vehicle may be a truck or a trailer drawn by a truck or tractor. Guiding structure is provided on the vehicle to facilitate loading and unloading of the pipe from the reels.

Abstract: Lift apparatus by which wheelchair invalids are lifted from one location, through a spiral, to another location. The lift apparatus includes coacting movable and fixed support members which are telescopingly received within one another to form a variable chamber therebetween.A cantilever arm is affixed to and radially extends from the movable support member. A pair of spaced arms are affixed to the cantilever arm and removably engage a chair. The cantilever arm is adjustably affixed to the movable support member such that the arm can be adjustably positioned along any radial extending from the axial centerline of the support members.A cam means is jointly associated with the two support members in such a manner that when fluid pressure telescopes the two support members apart, the cantilever arm is rotated 45.degree. towards the end of the upstroke and thereafter, the cantilever arm is rotated another 45.degree. as the chair is lowered back into proximity of the original elevation.

Abstract: A high pressure burner has an integral pilot and is employed in conjunction with a direct fired heater. The burner produces a long flame within the heating tube of the exchanger and therefore more efficiently transfers the heat of combustion into the medium being heated.The burner comprises an elongated mixing barrel attached to a control block. The main fuel gas along with the pilot gas enters the interior of the block and flows therethrough and through an orifice where the gas admixes with air in an unusual manner, and the mixture continues through the mixing barrel. Combustion of the gaseous mixture occurs downstream of the barrel.When the main fuel supply is turned off, the pilot gas supply flows through the burner assembly and forms a standing flame at the end thereof; and when the main fuel supply is opened, an elongated flame is established which extends a long way down the fire tube, thereby heating a large surface area of the fire tube, thus avoiding undue heating of any isolated area.