Abstract: An apparatus for removing an electronic device from a printed circuit board includes a board support for supporting the printed circuit board with the first main surface thereof directed upwardly and for vertically moving the printed circuit board; a lower heating device for applying heat from the second main surface side of the printed circuit board; an upper heating device for applying heat from the first main surface side of the printed circuit board; a withdrawal device disposed on the first main surface side of the printed circuit board for applying a force to withdraw the electronic device from the printed circuit board, the withdrawal device detecting the withdrawal of the electronic device; and a solder elimination device disposed on the first main surface side of the printed circuit board, the solder elimination device comprising a hood for covering that portion of the printed circuit board where the electronic device is mounted, and a pressure control device for increasing or decreasing a pressure w

Abstract: A wiring connection apparatus is disclosed in which an electric connection box connected to connectors of terminals of wire harnesses is housed and fixed in a protecting cover. A reception seat for fixing the electric connection box by means of a screw is fixed to the protecting cover. A lock unit is provided between the reception seat and the connectors of the terminals of the wire harnesses so that the electric connection box and the connectors may be simultaneously connected to each other when the electric connection box is fixed to the reception seat by the screw.

Abstract: A wire harness coupling unit intended for use on a vehicular instrument panel to facilitate coupling of connectors of a wire harness on the instrument panel with corresponding connectors of a wire harness on the dashboard side. The wire harness coupling unit essentially includes: a male coupler member provided on one of the dashboard and instrument panel and carrying connectors of one of the wire harnesses in predetermined positions; a female coupler member provided on the other one of the dashboard and instrument panel in face-to-face relation with the male coupler member and carrying connectors of the other one of the first and second wire harnesses in predetermined positions; the male and female coupler members being engageable with each other upon assembling the instrument panel onto the dashboard to couple the connectors of the two wire harnesses with each other.

Abstract: The growth of plants is promoted using a water-soluble cationic polymer obtained by polymerization of a quarternary ammonium compound of the following formula (I) alone or together with other vinyl monomers, ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 and R.sub.3 are each a lower alkyl, R.sub.4 is a lower alkyl, allyl, a hydroxy(lower)-alkyl, benzyl or --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 group (in which m is 0 or 1), X is a halogen or methylsulfate and Y is --O(CH.sub.2).sub.n --, --NH--(CH.sub.2).sub.

Abstract: In the production of a water-soluble, cationic high polymer of (A) at least one of acrylamide and methacrylamide and (B) at least one of ammonium type monomers of either one of the formulas: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 are each a lower alkyl group, R.sub.4 is a hydrogen atom, a lower alkyl group, an aryl group, a hydroxy(lower)alkyl group, a benzyl group or a group of the formula: --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 (m being an integer of 0 or 1), R.sub.5 .crclbar. is a group of either one of the formulas: --(CH.sub.2).sub.2 COO.crclbar. and --(CH.sub.2).sub.3 SO.sub.3 .crclbar.

Abstract: In the production of a water-soluble, cationic high polymer of (A) at least one of acrylamide and methacrylamide and (B) at least one of ammonium type monomers of either one of the formulas: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 are each a lower alkyl group, R.sub.4 is a hydrogen atom, a lower alkyl group, an aryl group, a hydroxy(lower)alkyl group, a benzyl group or a group of the formula: --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 (m being an integer of 0 or 1), R.sub.5.sup.- is a group of either one of the formulas: --(CH.sub.2).sub.2 COO.sup.- and -(CH.sub.2).sub.3 SO.sub.3.sup.