Abstract:
A tablet press machine (1) includes a fixed casing (2) which houses a compression assembly (3) comprising a power-driven rotor (4) that rotates about an axis (5), the rotor including a matrix disc (6) and another two discs (7, 8) on both sides of it, mounting two sets of reciprocating punches (9, 10) opposite and aligned with each other in pairs. The matrix disc (6) has a plurality of through matrixes (11) where the reciprocating punches (9, 10) forming each pair are mounted in such a way as to delimit between them an empty space (12) of variably size designed to contain a dosed quantity of powder to be compressed. Two sets of cams (13, 14) are associated with the compression assembly (3) and, as the rotor (4) rotates, impart on the punches (9, 10) a driving motion which moves them cyclically towards and away from each other in such a way as to compress the powder contained in the matrix (11) in the matrix disc (6). The casing (2) comprises, inside it, sealed separating means (15; 18, 19, 21, 22) desigend to delimit separate spaces (16, 17, 20) for housing the compression assembly (3) and the sets of cams (13; 14) in order to prevent the powdered product from contaminating the cams.
Abstract:
A tablet press machine (100) comprises: a hopper (1) for feeding a powder or granular product (2) to a first disc (3a) that rotates about an axis (X) and is equipped with evenly distributed holes or dies (3); a second and third disc (4, 6) that are positioned above and below the first disc (3a), respectively, rotate about the axis (X) and support respective pluralities of upper and lower reciprocating punches (5, 7). The punches (5, 7) are driven towards and away from each other when they are aligned with the dies (3) in such a way as to compress the product (2). Each of the punches (5, 7) comprises a cylindrical shank (8), one end of which is equipped with a working head (10) and sealed protection means (11) acting on the cylindrical shank (8) itself. The sealed protection means (11) comprise, for each punch (5, 7), a concertinaed sleeve (12) covering the cylindrical shank (8) and having an annular portion (13) constituting its far end relative to the working head (10), forming an annular seal and providing also a removable element used to attach support means (14) that protrude from the respective disc (4, 6). The near end (15) of each concertinaed sleeve (12) relative to the working head (10) presents an enlarged annular portion (16) that engages with a matching annular groove (17) in the cylindrical shank (8) to provide a tight seal.
Abstract:
A tablet press machine (100) comprises: a hopper (1) for feeding a powder or granular product (2) to a first disc (3a) that rotates about an axis (X) and is equipped with evenly distributed holes or dies (3); a second and third disc (4, 6) that are positioned above and below the first disc (3a), respectively, rotate about the axis (X) and support respective pluralities of upper and lower reciprocating punches (5,7). The punches (5, 7) are driven towards and away from each other when they are aligned with the dies (3) in such a way as to compress the product (2). Each of the punches (5, 7) comprises a cylindrical shank (8), one end of which is equipped with a working head (10) and sealed protection means (11) acting on the cylindrical shank (8) itself. The sealed protection means (11) comprise, for each punch (5, 7), a concertinaed sleeve (12) covering the cylindrical shank (8) and having an annular portion (13) constituting its far end relative to the working head (10), forming an annular seal and providing also a removable element used to attach support means (14) that protrude from the respective disc (4, 6). The near end (15) of each concertinaed sleeve (12) relative to the working head (10) presents an enlarged annular portion (16) that engages with a matching annular groove (17) in the cylindrical shank (8) to provide a tight seal.
Abstract:
A tablet press machine (100) comprises: a hopper (1) for feeding a powder or granular product (2) to a first disc (3a) that rotates about an axis (X) and is equipped with evenly distributed holes or dies (3); a second and third disc (4, 6) that are positioned above and below the first disc (3a), respectively, rotate about the axis (X) and support respective pluralities of upper and lower reciprocating punches (5,7). The punches (5, 7) are driven towards and away from each other when they are aligned with the dies (3) in such a way as to compress the product (2). Each of the punches (5, 7) comprises a cylindrical shank (8), one end of which is equipped with a working head (10) and sealed protection means (11) acting on the cylindrical shank (8) itself. The sealed protection means (11) comprise, for each punch (5, 7), a concertinaed sleeve (12) covering the cylindrical shank (8) and having an annular portion (13) constituting its far end relative to the working head (10), forming an annular seal and providing also a removable element used to attach support means (14) that protrude from the respective disc (4, 6). The near end (15) of each concertinaed sleeve (12) relative to the working head (10) presents an enlarged annular portion (16) that engages with a matching annular groove (17) in the cylindrical shank (8) to provide a tight seal.
Abstract:
The present invention discloses aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising 80 mole percent or greater of terephthalic acid; B) a polyether polyol having a nominal functionality greater than 2 and less than or equal to 4, a molecular weight of 250 to 1000 and has a polyoxypropylene content of at least 70% by weight of the polyol; and C) a glycol other than B having a molecular weight from 60 to 250; wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 15 to 70 weight percent of B); and 10 to 50 weight percent of C).
Abstract:
A process for improving the sun protection factor (SPF) of cellulosic fibre materials and blends thereof, which comprises contacting said materials with at least one compound of the formula (1) in which M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; R1 and R1′ independently of each other are hydrogen, hydroxy, optionally substituted alkyl, 4-morpholinyl, —NH—R3, —N(R3)2 or —O—R3, wherein R3is optionally substituted alkyl or optionally substituted aryl, R2 is a group of formula (2) wherein X is —O— or —NH— and R4 is C1-C4-alkyl which carries at least one hydrophilic substituent and R2′ has the meaning of R1 or R2.
Abstract:
A new and distinct cultivar of Geranium plant named ‘Rosetta’, characterized by its upright and broadly outwardly spreading plant habit; freely basal branching growth habit; freely flowering habit; pink-colored flowers with light pink-colored centers; and good garden performance.
Abstract:
A new and distinct cultivar of Geranium plant named ‘Rainbow’, characterized by its upright and broadly outwardly spreading plant habit; basal branching growth habit; freely flowering habit; purple violet, purple and light purple tri-colored flowers with dark purple-colored venation; and good garden performance.
Abstract:
A toothbrush comprising a handle with a head includes a base end facing the handle in a tip end remote from the base end. The head adjoins the handle at the base end of the head, and the head and the handle are disposed along the longitudinal toothbrush axis. The head also includes a substantially rigid base region joining the toothbrush handle and extending from the base end of the head to a link region situated between the base end and the tip end. The head further includes a tip region extending from the tip end of the head to the link region, such that the tip region is flexibly and resiliently linked at the link region to the base region and the base region extends for at least 60% of the distance between the base end of the head and the tip of the head.
Abstract:
A mixing device for fluids, comprising a column within which there is an internal core, a space between the column and core defining a channel for the flow of the fluids, the surface of the column facing the core having fluid guide elements which impart helical flow in a first twist direction upon a fluid flowing along the channel, the surface of the core having fluid guide elements thereon which impart helical flow in an opposite twist direction upon the fluid. On part of the channel, the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the core and on a part of the channel upstream or downstream of this part the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the column.