Abstract: A gun-shaped solder-dispensing device dispenses adequate and controlled lengths of solder wire for use in soldering plumbing joints and like tasks. The shape makes it easy to dispense solder and hold it to a heated workpiece all with one hand. The device contains an arcuate toothed drive which comprises about one-quarter of a circle. Thus, it is possible to contain a drive wheel of a large effective diameter in a compact housing. A trigger lever is linked to the drive wheel so that pulling the trigger lever with the fingers of a hand holding the device will dispense a length of solder. The drive wheel acts as a ratchet because it is linked to the trigger lever by pivoting connecting linkages. This allows the toothed wheel to move up into contact with the solder wire before it begins to revolve and move the solder forward. A pressure roller backs the solder to allow a variety of solder diameters to be accommodated.

Abstract: A device automatically places marks, such as notches, on solder as that solder is being dispensed to a soldering operation. The device is entirely mechanical, and places the proper amount of tension on the solder without stretching it, and guides the solder from a storage reel to a marking system. The solder is marked by elements located on a marking wheel that rotates next to a grooved wheel. The tensioning is effected by a plurality of grooved wheels around which the solder is trained and which can be adjusted to control the amount of tension applied to the solder.

Abstract: Apparatus and method are described for the automatic feeding of solder or other bonding agent with tension applied to the solder supply so that it retracts from the point of fusion an instant before it is entirely liquified.

Abstract: Single crystal, nickel based superalloy turbine blades are formed by fusion welding together two matched blade halves. The matched blade halves are joined by an electrospark deposition process which deposits a weld filler metal along the matched faying surfaces. The deposited weld filler metal is preferably the same nickel based superalloy used to form the single crystal turbine blades. Total heat input to the base metal is minimal so that distortion and metallurgical structure changes of the base metal are virtually nonexistent.

Abstract: In a method and apparatus for the automatic joining of pins to the surfaces of articles, especially of ear pins to associated pieces of jewelry, the joining step utilizes flame soldering in the automatic joining process in order to reduce costs for small lot manufacturing and firm joining of the pin to the article. The apparatus has an article receptacle movably disposed on a base plate which also carries a solder supply gun, a pin supply and support structure and a soldering flame nozzle, all being movable between a remote rest position and an operating position in which they are properly located for performing the pin soldering task.

Abstract: A soldering device having a guide body for receiving and delivering a filler metal to form a weldment. The guide body has an end portion which is positioned in the path of the heat from the burner to preheat the filler metal therein. The temperature of the filler metal in the end portion is sensed by a thermocouple and delivered to a memory unit for comparison with a preset temperature for operating a device for feeding the filler metal to the end portion. A cooling area upstream from the end portion having collant circulating therethrough is also controlled from the memory unit. A screen movable between the burner and the end portion to control the flow of heat to the latter is also controlled by the memory unit. The temperature of the burner flame and of the workpiece can also be sensed to assure proper working conditions upon delivery of the filler metal. Additionally, the burner and the feed of a reducing gas can be automatically terminated while changing workpieces.

Abstract: A method comprises feeding two or more, if necessary, alloying materials and simultaneously changing the ratio thereof. The ratio of the alloying materials is changed at the moment of transition from one section to the other one having different composition, the ratio being changed to such extent that the length of the transition portion is as small as possible. The time of transition is determined depending on the weld pool volume, rate of surfacing, cross section of the layer being built up, amount of the alloying elements both the required and the real one. Determining the time of transition for carrying out the method of the invention is disclosed in term of a preferred embodiment. An apparatus for carrying out the method of the invention is characterized in that it includes an adder-differentiator link, a voltage limiter, a switching device and an aperiodical link. The aperiodical link is a simulator of the weld pool.

Abstract: A method of and apparatus for fabricating a solar collector panel including providing a thermal conductive, heat absorbing plate having a plurality of grooves therein, feeding discrete lengths of solder strips having transverse curvatures into said grooves, respectively, placing a tube assembly having a plurality of conduits into said grooves of said plate is superimposed relation on said solder strips, holding said loose assembly together, and heating the loose assembly to melt the solder and effect a thermal conductive bond between said tube assembly and said plate.

Abstract: A method of and apparatus for applying beads of solder to a metallic plate as an integral part thereof for subsequent attachment to another component in an assembly operation.

Abstract: Tinning of a plurality of solder bonding surfaces is accomplished by feeding a predetermined length of solder into each of the plurality of pre-heated surfaces. The apparatus provides for the measurement of the solder wire during a non-tinning portion of the machine operating cycle, thereby conserving cycle time.

Abstract: A welding wire feed method and apparatus involves feeding a welding wire in a conduit cable to a workpiece, while maintaining it normally in one plane in the form of a sine curve in the conduit cable.

Abstract: A method of attaching a pair of opposite end frames of a dynamoelectric machine to a structural component thereof predeterminately positioned with the end frames for assembly within receiving means respectively provided in the end frames. Molten metal is introduced into the receiving means of one of the end frames for solidifying and forming a rigid tie between the one end frame and the structural component in their respective predetermined positions, and the end frame and structural component are simultaneously inverted upon the solidification of the molten metal for disposing the receiving means of the other of the end frames in position for introducing molten metal thereinto.Other methods of attaching components of a dynamoelectric machine are also disclosed.

Abstract: A method of assembling a dynamoelectric machine having a stationary member, a rotatable member, and a pair of means for rotatably supporting the rotatable member within the stationary member. In this method, beams are attached to the stationary member, and opposite end portions of the beams extend from the stationary member. The rotatable means is then mounted with the stationary member and the supporting means with one of the opposite end portions of the beams within means in one of the supporting means for receiving them. The receiving means is at least partially filled with molten metal which solidifies for interconnecting the one opposite end portion of the beams with the one supporting means, and the other of the supporting means is then secured to the other of the opposite end portions of the beams.