Abstract: An imaging composition and element are disclosed wherein an aromatic dialdehyde reacts with amines generated in response to activating radiation. Improved binders are used to insure sufficient retention of the volatile dialdehyde prior to imaging.

Abstract: There is disclosed a composition, element, and process of imaging, wherein a polymeric binder is rendered photocrosslinkable by virtue of a photoresponsive source of amines, and by virtue of one or more carbonyl groups on the binder which react with said amines to form a carbinolamine.

Abstract: Disclosed herein are monomeric compounds having the formula (I): ##STR1## wherein: R, R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or alkyl having from 1 to 4 carbon atoms;R.sup.4 is arylene having 6 to 18 carbon atoms;m is an integer from 1 to 4; andn is an integer from 0 to 4.These monomers can be homopolymerized or copolymerized with one or more other polymerizable monomers, and can particularly be copolymerized with those monomers having substituents which are susceptible to attack or degradation by a base. The resulting crosslinkable polymers are useful in relief image materials, such as photoresists and lithographic plates.

Abstract: A novel and easy method of construction and assembly which enables a tubular coil to be inserted in an open flue pipe so the flue pipe can be joined; water passing through the coil will recover waste flue heat from furnaces and boilers.

Abstract: A deflector for reducing swirling flow spillover occurring when gas flowing hrough curved ducting attempts to exit into a freestream flow. When a gas flows through curved ducting it develops a swirling motion and when it attempts to exit into a freestream it is forced down over the sides of the duct by the strong freestream flow rushing past. The deflector is arcuately shaped and positioned upstream and adjacent the exit end of the curved ducting. As the freestream flow travels over the surface of the deflector, it is turned toward the direction of the flow from the exit of the ducting and draws the exiting flow along with it. The drawn exit flow is straightened and strengthened and is able to penetrate into the freestream flow. Further the ends of the deflector generate vortices which draw along the swirling flow at the sides of the exit end and straighten and strengthen it also. Thus the problem of swirling flow spillover of a gas exiting curved ducting into a freestream flow is substantially eliminated.

Abstract: There is disclosed a package comprising a rack and a surrounding cover therefor. The rack has a top surface which slopes downwardly from front to rear. This top surface has a plurality of recesses or wells into which small receptacles may be inserted and thereby supported in the rack. The said receptacles are sufficiently large so that they visibly protrude from the rack. As a result of this protrusion of the receptacles the cover has a hood-like configuration to make allowance therefor. The rack also has a rearwardly positioned slot means to receive and support a diagnostic plate and a forwardly positioned trough to hold a tube member.