Abstract: The disclosure is directed to a photographic printing easel adapted especially for use in connection with the preparation of dye transfer color separations, to the end that the use of the dye transfer process is rendered significantly more convenient and expeditions. The easel includes a test board on one side and an exposure board on the other, with provisions for assuring a common plane of reference on opposite sides. On the test board side, the easel includes a plurality of filter openings through which a series of color test exposures is made in sequence, enabling the final color separation exposures to be properly carried out. Inasmuch as the test exposures for the dye transfer process must be carried out in total darkness, without benefit of any kind of darkroom light, the easel assembly is constructed to accommodate convenient and accurate performance of a series of color separation test exposures in sequence under conditions of total darkness.

Abstract: A flame cutting rollerbed which is specifically intended for use in metal strand casting plants serves to cut metal strands longitudinally and/or transversely. A flame cutting rollerbed of this type comprises uniformly spaced support rollers which are arranged across the longitudinal motion direction of the cast strands. The support rollers are each equipped with spaced disk rollers on the edges of which the metal strands contact and are supported.In order to protect the stationary support rollers from being damaged by the flame cutting jet, it is proposed that sections between adjacent disk rollers be coated with a porous protective coating which is resistant to the heat flow of the flame cutter jet. The protective coating is either metal-porous or ceramic-porous. Furthermore, the coating may be cooled by a cooling fluid, in which case the porous protective coating forms storage spaces for the cooling fluid. Nozzles for the cooling fluid are arranged opposite the disk rollers and/or the support rollers.

Abstract: A countdown timer designed for counting down predetermined intervals of time and periodically announcing the progressive elapse of the countdown period thru the use of a voice synthesizer. The time interval between the spoken announcements is decreased as the end of the period approaches. An automatic restart period is incorporated which recycles to a predetermined time to begin the countdown again the number of the restart cycle being counted down is displayed.

Abstract: A wire coil bunching and severing apparatus has an intermediately located pair of bottom halves which project into the bunching shaft. The side wall of the shaft, near the bottom halves, is provided with two sets of shears. The bottom halves are formed with edges which, when projected into the shaft, cover substantially all of the shaft cross section, with the exception of areas near to the shears. Wire strands will be thus guided by the edges of the bottom halves to the cutting shears for severing.

Abstract: The disclosure relates to an assembly of a closure element, such as a door, and a continuous, endless inflatable seal. An advantageous arrangement provided for effectively continuous support of the seal without requiring clamps or the like. The seal has a mounting or base flange which is continuous, except for a limited notch. The base flange is received in a mounting slot or groove, which is also continuous except for a notch of limited length. The endless seal is installed by initially inserting the base flange into the retainer groove, in the area of the notches, and sliding the endless seal member lengthwise into the retaining slot until the entire base flange is contained within the slot. Continuous mounting support is thus provided, except in the limited area of the notches, providing for a mounting of superior strength and reliability.

Abstract: The invention is directed to a soot blower for cleaning the interior surfaces of a boiler by discharging a suitable cleaning fluid from a nozzle against such surfaces. The soot blower includes a novel drive system operable both as the horizontal drive for the traveling carriage of the soot blower and as an independently controllable rotary drive for rotating the lance tube of the soot blower. The horizontal drive for the traveling carriage is associated with a motor means whereby operation of the motor means energizes the horizontal drive to advance and retract along a predetermined horizontal path of travel. The rotary drive for rotating the lance tube is mounted on the traveling carriage and is mechanically coupled to the motor means through the horizontal drive whereby operation of the motor provides a driving input for the rotary drive.

Abstract: The disclosure relates to a two-piece, pivoting base merchandise hook, for use on perforated panel board displays. A molded plastic base member, provided with panel engaging lugs, pivotally engages a short hinge bar, welded to an L-shaped merchandise support. The wire and hinge bar constitute a two-part, welded assembly, which may be mass produced on high speed wire forming equipment. The base member is a mass-produced, low-cost molding of an engineering plastic material. The base and wire members may be assembled when the hook is first installed. After initial assembly, the base is, for all practical purposes, captive with the wire.

Abstract: The present invention relates to a method and an apparatus for the recovery and recycling of heat from hot exhaust gases, specifically from exhaust gases in metallurgical processes and from warm gases having an exiting temperature of below about 800.degree. C. According to the preferred embodiment of the present invention, warm or hot exhaust fuel gases transfer their retained heat to the lower portions of vertically positioned, capillary-type action heat transfer pipes. Cold air is then directed past the upper portion of the heat pipes, thereby transferring the heat of the heat transfer pipes to the cold air. The now heated air gains further heat, prior to introduction into the blast furnace, by passing over, previously heated refractory gratings.

Abstract: An apparatus is disclosed for the continuous longitudinal construction for canals. The apparatus performs a series of sequential operations required for the construction of a canal. The apparatus performs planing of the surfaces of the sidewall slopes of the canal and the canal bed followed by a smooth surfacing of the planed surfaces with a suitable planing material.The apparatus during the canal construction adjusts to the angle defined by the opposed sloped walls of the canal and is adapted so that the ground-engaging carriages are held against the sloped walls. In this manner, the heavy bridging structures which, in the prior art, extend from one berm of the canal, across the canal, and to the other berm, are eliminated. In addition, two or more apparatus frames are pivotally connected one behind the other. In this manner, continuous adjusting at the connecting hinge is performed as the canal is constructed according to the varying parameters of the canal.

Abstract: A process for replacement of damaged parts of a vehicle or the like is disclosed. The process includes placing a manufactured overdimensioned part over the damaged part and adhering the overdimensioned part to the damaged part. The part may be fabricated from acrylic and may include an aperture. The acrylic part or any acrylic material may be illuminated by placing an illuminating means within the aperture.

Abstract: The invention relates to a cathodically depositable aqueous electro-dip lacquer coating composition containing as synthetic resin binder(A) from 50 to 99% by weight, based on the total quantity of synthetic resin binder, of one or more amino-1,2-epoxy resins, the amino-1,2-epoxy resin or--where several amino-1,2-epoxy resins are present--the mixture of amino-1,2-epoxy resins(a) having an average molecular weight (Mn) of from 700 to 10,000,(b) containing per 1000 molecular weight units from 0.2 to 3.6 lateral or terminal ethylenic double bonds corresponding to a hydrogenation iodine number of from 5 to 90,(c) containing primary and/or secondary alcoholic hydroxyl groups corresponding to a hydroxyl number of from 30 to 450 and(d) having an amine number of from 30 to 150,(B) from 1 to 50% by weight of a substantially non-acid polyester of a polycarboxylic acid containing at least two terminal or lateral, saturated and/or unsaturated .beta.

Abstract: The disclosure is directed to a novel and improved toothbrush construction which provides not only effective brushing action on the teeth, but also imparts a gentle yet highly effective massaging action to the gums as well as the dental underpinnings. The brushing head assembly of the new device is arranged for either rotary or nonrotary operation and includes a pair of opposed, generally circular flange-forming members, formed of a soft, closed cell foam material, and central, generally lense-shaped portions of a material of substantially less resilience. These flange-forming members are separated by a central impact cushion, somewhat disc-like in shape and formed of soft foam material. The entire assembly is held under axial compression by a pair of opposed cup-like restrainig hubs.

Abstract: A novel crane trolley has four guiding pulleys lying on opposed upper and lower guiding surfaces, arranged diagonally to eliminate the need for having eight guiding pulleys. On each side of the trolley are upper and lower guiding pulleys, with the lower in front on one side and the upper in front on the other side. The pulleys may be mounted under spring tension. Two such trolleys may be hinged together to support heavy loads.

Abstract: A method and apparatus for collecting saliva from a test subject comprises providing a flavored absorbent mass, such as a sponge, for mastication and charging with saliva and then expressing the saliva from the mass. Apparatus for this method comprises a barrel-piston arrangement in association with a specimen vial for storage until diagnostic testing.

Abstract: The disclosure relates to a modular tower-like structure for displaying merchandise for point of purchase sale. In one form, the basic tower is formed of cylinders of a plastic sheet material, such as clear "rigid" die cut vinyl plastic, of a thickness enabling it to be collapsed into a relatively flat form for shipping and storage. The sheet plastic tower elements are given a rigid cylindrical form by means of molded plastic end rings, which are of a channel-like cross sectional configuration to lockingly receive the ends of the cylinders. The end rings are of a form and configuration enabling two of them to be bonded in back-to-back relation, providing a structural interlock between the top of one tower module and the bottom of a second tower module above it. In an alternate form, the lowermost tower element is formed of corrugated board, which has certain structural, practical, and economic advantages in the overall assembly.

Abstract: The disclosure relates to an improved chuck force control and compensating means for rotary machine tools, such as lathe. The control is used with power-operated chucks and provides reliable and effective compensation for the effect of centrifugal force, which otherwise tends to reduce gripping force on the workpiece. The control includes a static adjust signal generator, for establishing the desired level of gripping force upon the workpiece, and a rotation speed responsive signal generator, for generating a signal which is a function of the square of the rotational speed. These two signals are combined and serve to actuate a servo valve to control hydraulic pressure delivered to the power operated chuck. Hydraulic pressure increases with increased rotational speed, in order to maintain chucking force at a constant level.

Abstract: The invention relates to a heat-curable coating composition, comprising:(A) a prepolymer with ketoxime-blocked NCO groups, which are linked to the prepolymer via cycloaliphatic and/or aliphatic groups,(B) a diamine cross linker,(C) organic solvents in an amount of 0 to 50 weight percent, based on the total weight of the coating composition,(D) optionally pigments, fillers, blowing agents and other known additives.The equivalence ratio of blocked NCO groups of component (A) to NH.sub.2 groups of component (B) lies between 1.3:1 and 0.75:1. The invention also relates to processes for its application and its use. The composition has a long shelf life and is advantageously used as an impact resistive coating on metal substrates such as automobile parts.

Abstract: In connection with a coating method and apparatus for one-sided coating of a continuous metal strip, a method and apparatus are provided for the mechanical removal of the oxide layer which forms on the uncoated side of said metal strip after said metal strip leaves the protective environment within which the coating occurs.

Abstract: A universal connector is provided to secure an elongated member such as a cable, hose or pipe from relative movement of the member while allowing the member to pass completely through the universal connector. In accordance with the invention, a gripping element, having at least a pair of opposed star locking washers, is interposed between the interior surfaces of the connector and the member and surrounds the outside surface of the member to clamp the member in place upon compression of the star locking washers. The connector includes means to provide a compressive force on the gripping element to compress the star locking washers including a force transmitting ring arranged to bear upon one face of the gripping element as the ring is urged into the connector by the rotation of a knurled nut threadedly received on the connector.

Abstract: The disclosure relates to a display hook featuring a novel display system highly compatible with computerized inventory management under the Universal Product Code System. The display system provides labeling or product information in an easily accessible location, while allowing the labeling to be readily replaced and securely mounted at the same time. The display hook may also be used to display carded and/or bagged merchandise, with highly desirable safety features. The display hook is formed of a single, continuous wire-like element in an outwardly extending arm, carrying at its outer extremity a display element. This display element can hold labels of any desired size economically. A preferred embodiment of the display element is a mounting means, preferably a mounting plate, carried by the arm, at its forward extremity, upon which an attachment is mounted to form a plate-like label holder.