Abstract: This invention relates to means for locating an ultra-precision positioning of a table, in which a rough moving of the table is made by a motor connected to the aforesaid means, while a minute moving thereof is done by a piezoelectric element mounted on a ball screw shaft to be driven by the motor, whereby an ultra-precision positioning of the table can be carried out smoothly. Accordingly, it is unnecessary to dispose a roughly moving table and a minutely moving table separately within a device.

Abstract: An infusion apparatus is provided which can give an infusion with high precision and which allows each changing of the infusion capacity. The apparatus includes a first burette and a second burette connected in series. The burettes communicate with each other through a connector which can be selectively opened or closed by directional control valve means.

Abstract: Apparatus for use in painting and cleaning paint rollers comprises a paint tray and a paint tray lid which can be mounted thereon. The paint tray lid includes a top wall with a pair of side walls and at least one end wall extending therefrom. A paint roller is fastened inside the lid in spaced relationship to the top wall. A water spray manifold inside the lid extends substantially thereacross, and contains a plurality of spaced orifices across its length aimed to direct water evenly across a paint roller fastened in the lid. The force of the water impinging upon the roller causes the roller to rotate, thereby cleaning the roller. Water spraying from the rotating roller cleans the paint tray. One or more separate orifices can be provided to direct water to clean the paint roller bearings. A hose supplies water under pressure to the manifold. A channel formed within the top wall of the lid accommodates and stores the hose when the apparatus is not in use.

Abstract: A multiwall commodity bag comprising a sealed plastic tube having a longitudinal seam formed by overlapping margins sealed together by two spaced seals to provide a channel. The overlapping margins are formed with openings only at the opposite ends of the channel, one of the openings being formed in one of the overlapping tube margins at one end of the channel and providing communication between the interior of the tube and the channel to permit escape of air through the tube, another of the openings being formed in the other overlapping tube margin at the opposite end of the channel and providing communication between the interior of the channel and the exterior of the tube. The size and number of openings are such as to permit venting of the tube while inhibiting flow of commodity into the channel or admission of external contaminants into the channel.

Abstract: A flow volumeter for liquids has an impeller chamber and an inflow chamber partially encircling the impeller chamber. In order to achieve a symmetrical load on the bearing for the impeller axis, the flow-directing openings in the circumferential wall of the impeller chamber, said openings facing the inflow openings of the inflow chamber, have smaller dimensions that the flow-directing openings facing away from the inflow chamber. In addition, the upper and lower regions of the impeller chamber are provided with outlet openings. Finally, the flow cross section of the inflow chamber decreases in size in the direction of flow.

Abstract: A rolling diaphragm seal is inserted between a pair of telescopic tubes containing a laser beam and a reflective mirror to preclude ambient air or lubricant from impinging on the mirror or for changing the density of the air within the tube to cause a change in intensity of the laser beam. The telescoping tube pairs can be used as part of a control system for the positioning of the beds of an ultra-precise machining apparatus such as found in turning and grinding machines for generating flat, spheric, and aspheric shapes, commonly known as aspheric generators. The rolling diaphragm seal consists of a rubber tube having its ends folded back upon itself and positioned between the inner and outer telescoping tubes of each pair. The ends of the seal tube are held apart in a retaining collar through which air can be inserted to pneumatically pressure the space between the folded back portions of the seal.

Abstract: An automatic coffee pot which can be used interchangeably to make espresso, "American" coffee, or cappuccino within the same unit, uses a disk-shaped clamp having a plurality of filter openings therethrough seated on the coffee grounds in the interior of the filter basket to prevent the coffee from being driven by steam and boiled water generated in the pot upwardly and outwardly towards the outer diameter of the basket thereby subjecting all of the coffee beans to the steam and boiled water passing therethrough so that the beans are fully cooked or brewed and not wasted, enabling less coffee to be brewed with a given volume of water so that weaker "American" coffee can be made in the pot. A telescoping tube with a handle is provided which is disposed over a hollow longitudinal tube in an upper chamber of the pot after cream is poured into the upper chamber before or as the coffee is brewed therein and passed through the inner tube.

Abstract: An apparatus for lacing the lateral strings in a racket frame which has already been strung with the longitudinal strings. The apparatus consists of a lower beam provided in its upper surface with two staggered longitudinal rows of vertical slots, the spacing of the slots of each row corresponding to twice the pitch distance of the longitudinal strings of the racket frame. The corresponding slots of the two rows form pairs of slots and the upper surface of the lower beam forms string support surfaces between the pairs of slots. An upper gripper beam is vertically movable with respect to the lower beam. The gripper beam has downwardly facing string surfaces arranged in pairs associated with the pairs of slots of the lower beam. The gripping surfaces of each pair are separated by a downwardly extending lug portion.

Abstract: Plastic web advancing apparatus for thermoforming equipment wherein the plastic web is indexed by being pulled between a three-roller arrangement located on the downstream side of a forming press. The rollers are driven by a stepping motor for intermittent indexing of the web through the press. Upstream of the forming press, the web is threadedly received between a pair of relatively movable clamping rollers which upon cyclical opening of the forming press are used to tension and feed the web in conjunction with the three-roller arrangement on the downstream end of the press. Upon closing of the press, the upstream clamping rollers are moved away from each other to release the web, enabling the web to shift and diagonally position its edges in alignment with the forming dies in the press.

Abstract: A remote delivery nozzle assembly is adapted to be releasably connected to a pressurized container to permit delivery of the pressurized contents thereof to a location remote from the container. A cap assembly is connected through a flexible conduit to a wand for delivery of the pressurized contents of the container. Upon seating of the cap assembly on the container, the valve of the container is opened pressurizing the wand through the flexible conduit. The wand includes a flexible membrane which when depressed by finger pressure opens a valve between the pressurized inlet and an outlet passage to deliver the pressurized fluid.

Abstract: This invention pertains to apparatus for trimming branches of trees and particularly branches high above the ground, without a pole saw, climbing the tree or using a ladder. The apparatus include spaced cutting links with sharp teeth at one end fastened upon a flexible chain. Each end of the chain is connected to a length of rope. A metal weight, sand bag, etc. attached to one of the ropes carries the flexible chain into position over the branch desired to be cut. A counter weight is also provided on one end of the flexible chain to automatically position the cutting side of the spaced cutting links in a downward facing, cutting position as the chain is pulled up onto and over the branch.

Abstract: A process is provided for the isolation of a mammalian blood protein fraction or derivative thereof, herein termed the "Prol A" fraction. The process comprises a series of centrifugal separations of blood fractions under conditions which maintain the integrity of the desired material as it existed in vivo.The "Prol A" fraction is a new material which constitutes another aspect of the invention. Prol A, a protein or derivative thereof, is useful as a neoplastic tissue remission and prevention agent.

Abstract: A spectacle or eyeglass frame that is especially designed such that when placed down the lenses thereof are protected from coming in contact with the surface thereby avoiding scratching.

Abstract: Maleic anhydride is obtained by oxidizing an unsaturated hydrocarbon having at least 4 carbon atoms in the presence of a catalyst comprising the oxides of tungsten and phosphorus, and at least one catalyst promoter selected from the groups consisting of a compound of a metallic element belonging to groups III A, III B, IV A and VIII of the Periodic Table; arsenic, zirconium, antimony, and niobium.