Abstract: There is provided a continuous flow type homogenizer. The homogenizer comprises, a tubular container having at upper end thereof an inlet for introducing tissue to be homogenized and at lower end thereof an outlet for discharging the homogenized tissue, a pestle disposed freely rotatable in the tubular container with a clearance defined between the inner surface of the tubular container and the peripheral surface of the pestle, a rotation shaft driving means connected to a rotation shaft of the pestle, a speed setting means for setting the rotation speed of the pestle, and a speed controlling means for controlling the speed of the rotation shaft with a predetermined speed gradient with respect to a speed value set by the speed setting means.

Abstract: A fail-safe system for monitoring a condition and activating controls in response either to the non-existence of that condition or the failure of any component in the system, in which a preliminary fail-safe oscillation train derived from sensing the condition is converted into a steady state indication of that condition, and a secondary fail-safe oscillation train is generated in a fail-safe way from said steady state indication for further transmission downstream for control purposes. In the context of flame monitoring, means associated with the preliminary oscillation train are provided for discriminating between separate flames and for time delay purposes.

Abstract: A support appliance is provided with a base structure comprising a plurality of hinged base boards arranged to be mounted on a standard hospital bed and providing a continuous, firm, base underlying a plurality of inflatable patient supporting air sacs to which air is supplied from headers supported by said base structure which headers are individually supplied with air under pressure by flexible conduits releasably connected to pressurized air supply conduits in a single housing connected at an edge of said base structure.

Abstract: Adjustable drapery traverse rods provided with a motor driven means for moving master carriers utilize a uniformly perforated drive tape and sprocket combination. Because of the perforations in the drive tape, the tape does not form a smooth curve when bent. The drive sprocket is thus adapted to allow the drive tape to lie flush against the sprocket as the tape passes over the sprocket over a wide range of tape tensions and, thereby, to drive the tape smoothly and noiselessly.

Abstract: Adjustable telescoping drapery traverse rods are provided with positive drive means for master carriers comprising an essentially non-stretchable perforated drive tape and toothed drive-sprocket. Apparatus is also provided for adjusting the points of connection between the master carriers and the tape from the outside of the rod after the length of the rod has been adjusted to fit a given window (or the like) opening.

Abstract: A telescoping drapery traverse rod is provided with a motor drive without sacrificing any of the simple consumer installation and adjustment features of conventional draw-cord operated traverse rods. It employes a positive-drive perforated-plastic tape and sprocket combination with the tape being releasably secured to the master carriers in a manner analogous to that of the conventional draw cord arrangement.

Abstract: A molded plastic seating module is disclosed which is suitable for assembly in groups to form bench type row seating especially telescoping bleachers. Each module is hollow and comprises two sections, a contoured seat and an upstanding base. The base is adapted to be secured to the support structure both vertically and horizontally and to resist tipping and the presence of structural stress concentrations in use. The seat is adapted to engage the base in a snap fit relation along its front and rear walls.

Abstract: A tool is provided for inserting an impregnated fibrous "string" or "cord" type repair into a puncture in a tubeless tire in which the bending stress is minimized such that any given repair can withstand greater stress than hitherto during insertion and/or weaker and more malleable repair materials may be employed.

Abstract: A motor driven drapery closure is provided with means for operating the closure between defined opened and closed positions without the use of limit switches. Means are also provided to stop the operation of the motor and back it up slightly if a significant resistance is met by the closure at a point midway of its travel or as a result of coming to the designed end of its travel. Additional means are provided for operating the closure in response to means for sensing an outside ambient condition such as the level of infrared light.

Abstract: A motionless mixer combination is provided comprising modules made up of basic mixer components formed from flat stock and having an isosceles triangular base plate and a pair of vanes connected at equal and opposite angles to the legs of the triangle of the base plate. Modules are made up of combinations of the basic mixer components to provide equal and oppositely directed helical flow paths with the fluid flowing substantially longitudinally of the line of all included angles and transverse to the line of all reflex angles. The modules are also provided with means for subjecting the fluid to a strong mixing action by intersecting fluid streams along a transverse line in the vicinity of where the fluid flows into a downstream module from an adjacent upstream module.

Abstract: A shade of adjustable width is provided in which portions can be removed by tearing along score lines, and means including pull tabs are provided whereby a portion in the margin of the shade may be removed leaving a widened opening which terminates at an apex at a given score line such that pulling adjacent portions of the shade material concentrates stress at the score line and promotes clean tearing therealong.

Abstract: Material for repairing punctures in tubeless tires from the outside is provided employing a multiplicity of substantially contiguous, lightly twisted fibrous cords which are heavily coated and at least partially impregnated with a highly plasticized and essentially weak, vulcanized elastomeric adhesive, the cords lying abreast and between a pair of release sheets, whereby the cords are encased in adhesive and can be peeled off the release sheets and separated as needed to repair various sized punctures.

Abstract: A process for rolling steel rod is provided whereby rolling rod at delivery speeds in excess of 15,000 fpm and cooling same after laying it in spread-out ring form on a conveyor is made feasible with less risk of cobbles and improved rod quality especially in the medium to high carbon content range by entering the rod after rolling into the laying head and thereafter cooling same non-uniformly through a grain size growing phase and a transformation phase with the non-uniformity of cooling rate during the transformation phase being kept in substantially inverse proportion to the differences in effective grain size established in the first phase.

Abstract: Apparatus is provided for supporting structures employing a free-standing column of angular cross-section having flanges of substantially equal length and an included angle between the flanges of between about 80.degree. and 45.degree.. A specific embodiment employs the column in combination in a telescoping grandstand structure.

Abstract: An inside repair for tubeless tires is provided wherein a measured amount of an air (or moisture) curing elastomeric adhesive is applied to the cleaned and primed inner surface of the tire over the puncture hole, a porous path is placed over the adhesive and the adhesive is then forced into the puncture hole by use of a cup-shaped tool lined with a release material. After the material has cured sufficiently to form a substantial skin, the tire is inflated. Thereafter, the repair cures fully with the tire in the strained condition of inflation. The elastomer is of low durometer and is compatible for adhesion to rubber.