Abstract:
Hollow bodies, e.g. pipes, are coated with protective layers of a liquid or pulverulent material by electrostatic spraying and hardening in which the bodies are disposed horizontally and parallel to one another upon a chain conveyor and are automatically displaced transverse to their longitudinal axes. In a first stage the coating is provided on the hollow bodies exclusively of their end regions and in a second stage the coatings are applied to the end regions.
Abstract:
A thermoplastic coating is applied to hot glass bottles, such as those in a glass annealing lehr, by transferring the bottles to an overhead conveyor and, while the bottles are suspended therefrom, immersing them in a chamber or tank containing a fluidized bed of thermoplastic resin powder suitable for fluid bed coating. After the bottles have been coated in the fluid bed, they may pass through a further cooling chamber to facilitate their handling. Ultimately, the bottles are delivered to a product delivery station by the overhead conveyor. This conveyor may move in a continuous, i.e., non-intermittent manner, in which case the fluidized bed-containing chamber or tank would also be mounted for longitudinal motion in unison with the overhead conveyor while bottles are immersed therein and for reverse movement, after the bottles have been removed, to return to its starting position. Preferably, the overhead conveyor moves in an intermittent manner and the fluid bed chamber or tank is raised or the bottles lowered in a vertical direction, during the stop period of the intermittent motion of the overhead conveyor, to immerse bottles suspended from the overhead conveyor above the tank. Means for picking up hot bottles, from a lehr for example, and/or for transferring them to the overhead conveyor are also included.
Abstract:
A glassware coating process and apparatus including ware handling, heating, coating and transfer equipment that is continuously operable to apply a coating of thermoplastic polymer resin to the exterior surface of the ware. A split chuck has reciprocable ware holding elements which are actuated through a ware sensor. Fluid purge means are incorporated in the chuck whereby to inhibit deposition thereon upon immersion into a fluidized bed of the coating resin. Similarly, the invention incorporates a ware orientation device that accurately aligns the ware immediately prior to the seizure thereof by the clamping mechanism.
Abstract:
A fixture for positioning semiconductor discs in a diffusion furnace for diffusing doping material therein including a troughshaped holder having sidewalls composed of a semiconductor material, the sidewalls having opposed grooves therein proportioned to receive individual semiconductor discs therein, the sidewalls being positioned to engage the peripheries of said discs along limited areas of contact which lie approximately at the horizontal plane including the center of gravity of the discs.
Abstract:
Apparatus for treating fabric items such as mops, mats, rugs, and the like with a dust control fluid includes a conveyor for moving such items with respect to a plurality of rollers. The first roller senses the presence of the item and initiates a measured spray of dust control fluid. A previous roller, e.g. a felt roller, absorbs excess fluid from the item and spreads the fluid evenly, while a hard-surfaced roller urges the fluid into the item. For processing rugs, a rotating brush is employed for raising the nap of the rug after treatment.
Abstract:
Apparatus for handling and painting clay pigeons or targets is provided. The clay targets are fed in a line along a conveyor and are then formed into two lines, and subsequently four lines, after which the targets are sequentially removed from each of the four lines of the conveyor. The clay targets are then fed to four painting positions. In each position, the target is moved upwardly by a plunger into contact with a circular brush. The brush is located at an angle to the vertical with a lower portion submerged in a receptacle of paint and the target is positioned to one side of the receptacle so that if the target should be broken, it will not tend to fall into the receptacle. The target is rotated by its support while in contact with the brush and the brush is periodically, incrementally rotated to supply additional coating material from the receptacle.
Abstract:
A method of applying a resinous material to an elastic, openmesh fabric in spaced globs or in a narrow band and subsequently passing the fabric to an area maintained at an elevated temperature so as to set the resinous material and thus form friction protrusions on the open-mesh fabric.
Abstract:
An assembly is provided for supporting cloth, or other sheet material, upon which markings, such as paintings or drawings, are made by felt tipped, ball point or other marking devices. The assembly comprises a top support member, usually round or oval, and a removable hoop to temporarily fasten the cloth in position. A pad consisting of stacked sheets of blotter paper adhered together at their edges is positioned between the cloth and the support member.
Abstract:
ARTICLES TO BE SELECTIVELY COATED, ARE CONVEYED THROUGH A COATING STATION BY A TAPE WHICH SERVES ALSO TO MASK AREAS OF THE ARTICLES WHERE COATING IS NOT DESIRED. THE TAPE IS IN THE FORM OF AN ENDLESS BELT AND COATING MATERIAL IS CONTINUOUSLY REMOVED FROM THE TAPE SO THAT EACH ARTICLE TO BE COATED IS PRESENTED WITH A CLEANED PORTION OF THE TAPE AS A MASK. AUTOMATIC APPARATUS IS PROVIDED TO ALTERNATELY RAISE AND LOWER SECTIONS OF THE TAPE OVER A SUPPORT TRACK FOR THE ARTICLES IN COORDINATION WITH FEEDING AND ACCUMULATING DEVICES TO BRING PARTS INTO AND OUT OF ENGAGEMENT WITH THE TAPE.