Abstract: An annular wall extending from a bottom wall foundation of a rotating burner assembly encloses a combustion zone into which combustible material is fed. An energized heating element mounted on an internally concave, heat insulating surface of the annular wall has the combustible material accumulated thereon during rotation to generate smoke upwardly withdrawn from the combustion zone.

Abstract: A pair of supports to aid in the installation of door jambs, each support includes a base to rest upon and to be secured to a support surface. Extending upwardly from the base is a brace member which has at its upper end a securing bracket to engage the door jamb. Adjacent the base is a second securing bracket which also engages the door jamb. Both brackets are adjustable movable horizontally to adjust the door jamb engaged thereby.

Abstract: This invention relates to sensitive or classified documents utilizing specially prepared paper containing a unique substance which will, in the presence of sensors incorporated within a document copier which constantly monitor the field of view for the presence of this unique substance, interrupt the operation of this document copier. Within the copier housing, adjacent the illumination and optical apparatus, a lens gathers some of the reflected light from a document to be copied. This light is then passed through three (3) narrow band spectral filters to three (3) associated detectors. Subsequent circuitry responds to the detected light at the predetermined wavelengths, if present, and, when appropriate, interrupts the operation of the copier and/or sounds an alarm or triggers a camera.

Abstract: Method and apparatus are disclosed for the prevention of unauthorized copying of documentation on an office, or other type, copier. Unique phosphors are applied to paper. When such a paper is placed on or in a copier so prepared, the presence of the phosphor is detected and the copier is disabled. Inside the copier a laser emits a beam toward the paper. Two detectors detect, respectively, the laser light reflected from the document and the stimulated light from the phosphor coating or layer. Detection of both signals, in the proper time sequence, will cause the photocopier to cease operation prior to electrostatic or other capture of the image. Upconversion phosphors could be utilized as the phosphor coating due to their scarcity and unliklihood of use in this manner.

Abstract: Method and apparatus are disclosed for the prevention of unauthorized copying of documentation on an office, or other type, copier. Unique phosphors are applied to paper. When such a paper is placed on or in a copier so prepared, the presence of the phosphor is detected and the copier is disabled. Inside the copier a laser emits a beam toward the paper. Two detectors detect, respectively, the laser light reflected from the document and the stimulated light from the phosphor coating or layer. Detection of both signals, in the proper time sequence, will cause the photocopier to cease operation prior to electrostatic or other capture of the image. Upconversion phosphors could be utilized as the phosphor coating due to their scarcity and unliklihood of use in this manner.

Abstract: A rotor assembly driven by a motor, supports a burner element within a combustion chamber from which smoke is withdrawn. Combustible material stored in a hopper chamber is gravitationally fed into the combustion chamber with an inflow of air induced by rotation of blower vanes on the rotor assembly to produce the smoke when the burner element is electrically energized.

Abstract: The housing of a smoke generator is provided with an outlet passage conducting a blower induced flow of particulate material from a hopper. An inflow of air is conducted to the blower separate from the material through a conduit extending through the hopper. The material is comminuted before entering the blower and is discharged by the blower into the outlet passage to accumulate on the upstream side of a screen which also forms a burner element activated by means of a switch to effect combustion of the accumulated material. The smoke so produced is displaced through the screen under the pressure produced in the outlet passage by the blower.

Abstract: Comminuted material conveyed from a hopper by a blower induced airstream accumulates on a screen. When a measured amount of material accumulates on the upstream side of the screen, a burner is energized to effect combustion of the material, producing smoke and unclogging the screen. The smoke is displaced by the airstream through the screen and is discharged therewith from a smoke outlet.

Abstract: A masonry block unit having spaced, selectively removable, vertical flanges on its inner face which are so spaced that they may be laid in the same direction and overlapped corresponding to the spacing in order that alternate flanges will provide a continuous row for attaching cladding and between such rows standard insulation may be placed, with the removal of the flanges which do not fall in the continuous lines.