Abstract: A tool for gaining access to a pop-up sprinkler head when in a sprinkler casing, and for insertion into and removal from the casing of the sprinkler head; also a method for using the tool for gaining access to the interior of the casing and for sprinkler head removal. A tool consisting of a gripping portion for a gripping a part of the sprinkler head attaching the head to the casing, a handle, a lever interconnecting the handle and gripping portion, and portions for holding a pop-up cover out of engagement with the top of the casing, may be inserted into the casing to effect removal of the head from the casing while not requiring that the cover be manually head out of engagement with the casing top. The tool may also be used merely to allow an individual to gain access to portions of the head within the casing with both hands, one hand not being required to hold the cover out of engagement with the casing top.

Abstract: A machine for assembling blower rotors comprises a fixture with a cylindrical interior surface in which there are shallow, axially spaced, radially inwardly opening circumferential grooves. The grooves receive marginal portions of flat sheet metal discs that have blade slots opening to their peripheries, thus holding the discs in spaced, coaxial relationship and allowing them to be indexingly rotated, ratchet-fashion, by pawls that engage circumferentially facing edges on the discs. Indexing rotation brings a slot in each disc into alignment with a blade guiding surface on the fixture, and a pusher moving along that surface forces individual blades edgewise along it and into the discs.

Abstract: A valve housing is composed of a pair of shell sections each of which has an open side surrounded by an edge face, and a semi-circular rib located within the open side and having a face slightly downwardly recessed from the associated edge face. The shell sections are placed together so that their edge faces abut, and these edge faces are welded to one another. The ribs are semi-circular in mutually opposite directions and thus form a circumferentially complete annular portion. Opposite this portion the housing is provided with an opening having a larger diameter than the portion, and after the shell sections have been welded together a material-removing tool is inserted through this opening and forms on the tubular portion a circumferentially complete annular welding face which is in part of stepped configuration.

Abstract: This is concerned with a method of making a fuse puller, preferably by molding plastic in which two arm members are formed with leaves or arms and spacers at each end thereof and at least one of the arm members has one end free or open so that it may be interleaved or inserted between the spaced arm members, generally in the middle thereof, of the other arm member.

Abstract: For filling and adjusting double-membrane cassettes acting as link members in piston metering pumps, the sealing surfaces of the membranes are first coated with a resilient pressure-deformable cement. The membrane cassette is introduced still unclosed into a thermostat where an adjustable, uniform pressure is applied to the upper membrane. The membrane cassette is then filled under an excess pressure of from 0.2 to 1 atm. and closed. After closing, the membranes of the cassette are brought into plane-parallel alignment in an evacuation unit.

Abstract: This specification discloses a method of making a high efficiency gas-fired furnace with aluminized steel heat exchangers which are specially prepared for higher heat exchange efficiency by heat treatment of the heat exchanger shells.

Abstract: Posts such as highway signs or reflector posts, exposed to impact by oncoming vehicles, are first anchored in the ground and then formed with a weakened fracture zone or shear section immediately above ground level by use of a pliers-type tool locked around the post and slidably mounting a punch which when struck by a hammer will pierce the post. The tool is positioned on the post to form the pierced hole facing the direction of oncoming traffic so that the post will break at ground level without leaving an upstanding segment when impacted by a vehicle. The invention includes the reuse of the post after it is broken off at ground level by driving the broken end of the post into the ground and then again using the tool to punch a hole in the post at the new ground level of the post.

Abstract: A method for repairing eroded bottoms of ingot molds by forming a casting space in the bottom of the mold at the point of erosion, the casting space having an hour-glass type shape, placing the ingot mold on a molding platform so as to close off the bottom of the casting space with a refractory material, placing a protective layer of a compactable refractory material about the interior of the mold and introducing to the casting space an alumino-thermic material and then igniting said alumino-thermic material such that the weld metal from the reaction thereof completely fills the casting space. Methods for repairing the bottoms of closed bottom as well as plug bottom molds are disclosed.

Abstract: Methods, apparatus, and improved structure having as their common basis the sequence of collapsing a piston ring in a fixture approximating engine bore diameter, and separately lapping a major portion of the ring side and a remaining locality -- narrow in width, of band size and preferably line size -- of the side of the ring while it is so collapsed, until circumferentially continuous portions of the side are flat in the range of at least about ten to five light bands. That is, out-of-flatness of the two circumferentially continuous potions, stated another way, is limited in each case to a range equivalent to about five to ten light bands at maximum, at standard inspection wave length.

Abstract: An interconnection system suitable for transmission lines, in the form of electrical or optical conductors, or in the form of conduits for electrical waveguide transmission, reflected light or fluidic signals, wherein lengths of such transmission lines bridge between discrete point-to-point location on a substrate, the transmission lines being anchored by sealant and filler material at selected substrate locations and being cut generally transversely, or otherwise transversely formed, to provide exposed conductor or conduit end portions anchored at the selected locations. The transverse areas of the conductors or conduits defined by such transversely cut, or otherwise transversely formed, and exposed end portions provide energizable signal energy planes. More specifically, such discrete energizable planes in the form of transverse conductor surfaces, are of a size and shape conforming to the transverse conductor areas exposed by cutting or other forming operation.

Abstract: A bearing housing for high speed rotating shafts wherein the bearing housing is constructed in two parts with the bearing being of the semi-floating type. One part of the bearing housing presses against the bearing to resist any axial thrust that may be exerted on the bearing during high speed operation. The bearing is floating on a lubricant around its outer diameter in the other portion of the two part bearing housing. With the bearing being stationary in the housing, the only critical surface becomes the internal surface between the bearing and the shaft itself. By varying the position of the two parts of the bearing housing, the passage for the lubricant to enter the bearing housing can be located at a near vertical position while permitting desired orientation of the end of the bearing housing.

Abstract: A vane axial flow fan is shown having a shroud construction which provides greater than normal rigidity in the areas co-extensive with the stator vanes and fan wheel blades. Further, a novel method of constructing an axial flow fan is disclosed wherein the stator vanes are first mounted on an expandable split ring which is then placed within an annular stator housing. The split ring is then expanded to reduce stator vane end clearance prior to being permanently secured in place by welding.

Abstract: An apparatus for and a method of automatically assembling a body structure of an automobile body, in which side panels are downwardly conveyed into first temporary positions over a floor panel and adjacent jig means, adjusted for proper positions relative to the jig means, moved into second temporary positions, clamped by the jig means, moved from the second temporary positions into final working positions ready to be welded to the floor panel which has been conveyed into a working position thereof, and welded to the floor panel into a unitary structure. The side panels are initially held in positions horizontally close to each other and are gradually moved toward positions horizontally spaced wider from each other as the side panels are conveyed downwardly. The apparatus and method may be modified so that not only the floor panel and the side panels by a cowl-and-dash-panel subassembly and/or a parcel shelf member are assembled together.

Abstract: An automatic pallet assembling system which includes a pair of conventional nailing machines for separately nailing each side of a pallet and conveying means for carrying the half-finished pallet between the nailing machines. The stringers and deck boards are automatically fed to the first nailing machine in the proper sequence for nailing. After nailing, the half-finished pallet is automatically turned over and offset with respect to its direction of movement before being fed to the second nailing machine where the final set of deck boards are automatically fed into position for nailing. With five personnel (including two inspectors) operating the assembly system, a production rate of up to eight pallets per minute can be achieved.

Abstract: Disclosed herein is a valve for regulation of a fluid consisting essentially of fluid passage members attached integrally to both sides of a valve casing by means of frictional pressure-welding. The above casing includes a back pressure chamber and the spacing between the fluid passage members and the back chamber define stay chambers inside the joint sections at both sides which mitigate shock and damaging effects by hydraulic inertia to the valve, and prolong its life.

Abstract: Disclosed are methods and apparatus for effecting a fully lined junction between the end faces of two joints of plastic lined pipe. An annular groove is formed in the outer surface of the pipe at a predetermined distance from the end of the pipe joint and a ring fitted within the groove. A rigid flange having an internal shoulder which mates with the external surface of the pipe joint and the ring and which has a radially extending face is positioned over the ring and the end of the pipe joint so that the radially extending face lies in the same plane as the end face of the pipe. An end face liner having a cylindrical body which mates with the internal dimensions of the pipe liner and a radially extending flange is bonded within the open end of the pipe so that the radially extending flange mates with both the end face of the pipe and the radially extending face of the rigid flange.

Abstract: A method of assembling individual units of automobiles in an assembly line in which each unit or parts of the unit are transported on individual motor-driven transport cars, the movement of the cars being individually controlled by signals from control wires connected with a control center and running in the direction of the line. The invention also comprises an apparatus as well as a transport car to be used in said method.

Abstract: A method and apparatus for assembling combination shock absorbers and leveling struts of the type comprising a telescopic direct acting shock absorber having a reciprocable piston and piston rod, with the piston rod carrying a cylindrical dirt shield which cooperates with a rolling or flexible diaphragm member extending between the body of the shock absorber and the dirt shield in defining a variable volume pressurizable chamber. The dirt shield is displaced relative to the shock absorber in response to the magnitude of pressure maintained in the chamber whereby to selectively control the attitude between sprung and unsprung portions of a vehicle.

Abstract: An annular composite joint of wire and braze alloy fluid-tightly seals the bucket of a gas turbine to the root sidewall piece bridging the space provided between the two parts to eliminate the necessity for close tolerance fit.

Abstract: A production line and method for the manufacture and assembly of prefabricated box-shaped building sections, the production line having a manufacturing part for the construction of walls, floors, ceilings and roofs which are generally concrete cast in metal frame that were first dipped to render them corrosion-resistant with the concrete thereafter poured from an overhead conveyor to harden inside of and become affixed to the frame. A jig is provided for this purpose. A drying region is next located along the production line to receive the panels from the manufacturing part of the production line. Here, drying of the concrete occurs and panels are stored in storage areas in the drying region to complete the drying and hardening process.