摘要:
In withdrawing liquid from cellulosic pulp by a procedure comprising passing a column of a slurry of the pulp to be dewatered through a cylindrical vessel, in one direction, and flowing the liquid towards a chamber for withdrawn liquid, said chamber having a pervious wall immediately adjacent said column, it is desirable - in the interest of preventing clogging of the pervious wall - intermittently to interrupt inflow of liquid into said chamber by pressure variations induced by a gaseous fluid into the top of said chamber.
摘要:
A machine for binding bundles of preferably wire rod material with wire includes a carriage on which the binding unit is mounted for movement towards and away from the bundle to be bound, the binding unit including a mechanism for feeding the binding wire from a magazine, an openable wire guide track surrounding the bundle to be bound and which serves to guide the wire around the bundle, a wire clamping assembly, a wire twisting assembly and a wire cutting assembly.
摘要:
IN THE COURSE OF BEING DELIVERED INTO A GENERALLY VERTICAL BLEACHING VESSEL, CONTAINING A GASEOUS BLEACHING AGENT IN A FREE SPACE IN THE UPPER PART OF THE VESSEL, A CELLULOSE PULP IS SUBJECTED TO VIGOROUS MECHANICAL WORKING IN A DIRECTION TRANSVERSE TO THE FALLING DIRECTION THEREBY BEING FINELY DISINTEGRATED AND FLUFFED.
摘要:
Preliminary to being delivered by a ''''thick stock pump'''' means to a generally vertical bleaching vessel there is added to a cellulose pulp a fluid, such as steam, oxygen or a gaseous bleaching agent to flow countercurrent to the pulp in such manner that any air in the pulp is displaced and is replaced by bleaching agent before bleaching of the pulp in the bleaching vessel.
摘要:
In the liquid treatment of cellulosic pulp by a procedure comprising passing a column of a slurry of the pulp to be treated through a cylindrical vessel, in one direction, and forcing a treating liquid through the column, in a direction transverse to the major axis of the column, from a delivery space for such treating liquid toward a collection vessel for used treating liquid, said collection vessel having a pervious wall immediately adjacent said column on that side thereof remote from said delivery space, it is desirable-in the interest of preventing clogging of the pervious wall-intermittently to interrupt inflow of liquid into said vessel by pressure variations induced by a gaseous fluid discharged under pressure adjacent said pervious wall.
摘要:
An arrangement in machines for manufacturing carton blanks, said machines being of the type in which the carton sheets are fed intermittently therethrough and are passed from a magazine to a conveying means by means of a reciprocating feed means, wherein the feed means are individually journalled on a support surface and constructed in he form of a feed stand and provided with means by which the feed means can be quickly and reliably adjusted to the different sizes of carton sheet material passing through the machine.
摘要:
A method of reducing internal stresses in and improving the mechanical properties of injection molded articles made of thermoplastic resins is disclosed wherein under in other respects normal injection molding conditions thermoplastic resins are injection molded at high injection and holding pressures within the range 250-800 MPa.