Abstract: An illuminated advertising display device produces changing visual effects by placing a panel having a pattern of holes at the front of a light box with some of the holes defining alpha-numeric characters, and reciprocating behind the panel a shutter which has a pattern of transparent spots each of which registers with a hole in the panel at some point in the reciprocation of the shutter, with some of the spots registered simultaneously with all the holes that define the alpha-numeric characters. The panel has a forwardly facing reflective surface, and spaced forwardly of the panel is a light transmitting reflective sheet. If desired, the transparent spots may be tinted in several different colors.

Abstract: An elevator control utilizing a data processor and which is sequentially responsive to independent program blocks. The control includes a central processing unit, programed read only memory and random access memory, with input and output circuits for interconnection between the control, the elevator, elevator drive and the structure in which the elevator operates. The memory has a capacity to store information for elevator systems and structures with a wide variety of parameters. Specific addresses in the memory are assigned for the input information and for elements of status information which provide for interaction between different portions of the program. The assigned addresses are common to all elevator controls, enabling use of standard program blocks and minimizing the original design work required for each control.

Abstract: Nitrilotris (methylene) triphosphonic acid and 1,3,6-napthalenetrisulfonic acid are used to stabilize solutions containing diazotized sulfanilic acid.

Abstract: Apparatus for rolling large bales of fodder has a wheeled frame adapted to be towed behind a farm tractor. A baling chamber has a floor with fodder conveyor chains carried in recessed channels so that only fodder engaging lugs are above the floor and the weight of the forming bale is carried by the floor. The floor pivots in the baler frame. The sides of the baling chambers are defined by rotating raddle guide discs which support the ends of raddles on baling raddle chains that define the rear, top and front of the baling chamber. The raddle guide members have circular raddle confining plates, and on the inner faces of the plates are raddle supporting flanges the diameter of which is substantially less than the diameter of the confining plates, so the raddles move outwardly for a substantial distance due to pressure of the forming bale while a relatively thick outer part of the bale is held between the confining plates of the rotating raddle guide discs.

Abstract: A packaging system designed for home appliances, comprises a bottom cap, a top cap, and a plurality of corner angles extending vertically between the bottom cap and top cap and having leg portions facially abutting outer surfaces of the appliance at vertical corners thereof. The corner angles are vertically corrugated and, are formed as synthetic resin extrusions. Each leg of the corner angles have a plurality of planar suface portions facially engaging the appliance surface. The legs of the corner angles define outer planar surfaces engaging complementary planar surfaces of the end caps for providing a stable assembly of the corner angles and end caps. The corner angles have a length greater than the height of the appliance so as to space the top cap above the top surface of the appliance. The packaged assemblies have sufficient rigidity to permit stacking one on top of the other.

Abstract: A silo unloader is of the type having a tripod with inwardly and upwardly inclined legs, including a main leg and lateral legs, surmounting the wall of a cylindrical silo, and a silo unloader mechanism has three generally radially extending horizontal support arms to each of which is secured a suspension cable trained over a sheave at the upper end of one of the tripod legs to suspend the mechanism in the silo. Each of the sheaves is journalled in a yoke which is freely suspended at the upper end of a tripod leg, and because of the way the suspension cables must run from the winch to the sheaves, the yokes are displaced from a vertical suspension by the load on the cables. The structure of the support arms permits securement thereto of the three suspension cables at points which compensate for the displacement of the sheave yokes, so as to cause each cable to hang effectively vertically from the sheave over which it is trained.

Abstract: A saddle bag for use on motorcycles is provided with a recessed handle on the top surface thereof. The bag is shaped to have a wider bottom and an angled side wall upon which is mounted a bottom-hinged door. The bag is balanced in such a way that when lifted by the handle, it will pivot about the handle such that the angled side wall and door fall in a substantially vertical plane. A person carrying the bag with the door next to the leg will have the door parallel to the leg and not in a position to bump or tangle said leg. A part of the bottom wall of the bag is angled such that with the bag in position on a motorcycle, the bag is not likely to drag on the ground as the cycle goes around corners or as the cycle lays over.

Abstract: A windshield wiper blade connector (20) is provided for connecting a plastic windshield wiper blade (14) to the side pin (61) of a side pin wiper arm. The connector includes a U-shaped spring (52) seated in a cavity (32) in the bridge of a wiper blade (14). Intermediate portions of the sides of the U-shaped spring (52) intersect in a chordal fashion the transverse pin-receiving aperture (42) in the yoke (16) of the blade. The pin (61) with a reduced diameter portion (62) is inserted in the aperture (42) so that the intermediate portions (55,57) of the U-shaped spring (52) will seat in the reduced diametered portion (62) of the pin (61) to lock the blade (14) to the arm. The U-shaped spring (52) can be flexed to release the pin (61) from the blade (14).

Abstract: A disposable apparatus is provided for sampling and identifying microorganisms. In one application of the apparatus, a throat culture is taken and pathogenic microorganisms in the culture are identified. The apparatus includes a housing having a retractable strip with a streaker or inoculating pad on the distal end thereof. An identification bar having a plurality of open-faced troughs is clamped to the housing with the open faces of the troughs in line with the streaker pad on the sampling strip. A different testing media is provided in each trough. A cap encloses the end of the housing and the streaker pad. With the cap removed, the streaker pad is swabbed over the infected area after which the strip and inoculating pad are retracted to draw the pad into the housing and over the testing media in the open-faced troughs. The strip is broken off leaving the inoculating pad in the housing. The cap is reassembled on the end of the housing.

Abstract: A cover for a hot tub has wooden or other rigid ribs secured to a flexible, resilient foamed plastic sheet. One rib is secured at an edge of the tub to anchor the cover. The cover can be rolled between an extended position overlying the tub and a rolled retracted position adjacent the tub. A pair of brackets secured to the tub each have a depression in the top surface in which the retracted rolled cover rests.

Abstract: A flexible hose of a self-supporting material formed by helical revolutions of an interlocking strip. The strip includes a tongue, a groove, and an interconnecting integral wall. The groove is formed by a receptacle having an internal cavity for receiving the tongue as the strip is helically wound upon a mandrel. The internal cavity is provided with a void for receiving an adhesive or weld. The placement of the adhesive or weld within the void determines whether the hose is more suitable for vacuum, high pressure, or maximum strength use. The configuration of the strip is such that the finished hose has a smooth, relatively uninterrupted internal surface. The cross section of the strip is substantially uniform throughout, has a groove that not only renders the assembled hose capable of taking a sharper curve without collapsing, but also can receive a ground wire for use in grounding the hose, and is easier and cheaper to extrude since it uses less material.

Abstract: In a windshield wiper assembly (10), a connecting adaptor (14) converts a center mounted pin connection between a wiper arm (11) and a pressure-distributing yoke (13) to a side mounted pin connection. In assembled position, the connecting adaptor (14) is disposed over the cross rivet (28) within a center open space (20) defined by the yoke (13). The connecting adaptor (14) has deflectable claw elements (36) with tabs (53) which engage the side walls (16, 17) of the yoke (13) to fixedly maintain the connecting adaptor (14) in proper assembled position. A connecting pin (33) carried by the connecting adaptor (14) and extending laterally outward therefrom provides a side mounted pin connection for pivotally receiving the terminal end (75) of the wiper arm (11).

Abstract: An eyeglass clip for holding trial lenses in selected alignment with an eyeglass lens and being adapted to be attached to a pair of eyeglasses includes a body member defining a contoured rim with a large central aperture and a lens holder extending forwardly therefrom defining a channel with at least three axially spaced grooves formed therein adapted to receive trial lenses, a spring clip holding a trial lens in a fixed position when inserted into one of the grooves, a plastic clip member secured to the rear of the body member which resiliently holds the rim against an eyeglass when the eyeglass is positioned between the rim and the body member, and leveling means for indicating the proper angular orientation of the eyeglass clip on the eyeglasses.