摘要:
To transport and/or store produce, individual refrigeration units are provided for palletised packages. A load of produce (201) is enclosed by packaging which acts as a gas barrier, e.g. a plastics bag (2), corrugated cardboard, etc. The packaging may optionally also include insulation (200). In one option the refrigeration unit is in or on the pallet (3). The gas flow across the evaporator (15) (i.e. the flow internal to the gas barrier) is kept separate from the gas flow across the condenser (10) (which flow results in heating of the ambient air) by such measures as physical separation of condenser and evaporator and ducting or channels in the pallet. In another option the refrigeration unit sits on the produce. In this case separation of the gas flows may be achieved by sealing of the barrier (e.g. clamping of the mouth of a plastic bag by an O-ring) to a flange encircling the condenser.
摘要:
A sprung support for wheel on an amphibious vehicle, the wheel having a lower vehicle supporting position and an upper retracted position. The wheel is supported on axle (15) rotatable in support (16) to be driven through shaft (10). The support (16) is attached to the vehicle body (2) by upper links (11) and longer lower links (12) and is sprung by torsion bar (35). Steering of the wheel is by movement of a steering shaft (30), through a steering link (32) rotating support (16) about axis through joints (20 and 21). The wheel is moved up to the retracted position in a chamber (13), where its axle (15) is substantially vertical by rotation of torsion bar (35) by power drive (36) rotating upwardly the links (12) and links (11).
摘要:
A sports conveyance (10) of the type having a substantially rectangular elongate board (11) mounted on a frame (12) supported at its rear by rear wheel means (13) and at or towards its front by a pair of spaced front wheels (14). The frame (12) includes a main frame assembly (20) and two sub-frames (21), the latter being mounted in opposed dispositions on opposite sides of said main frame assembly, each sub-frame (21) having a transverse arm (22) rigidly connected at its outer end (23) to the respective wheel mounting (24), while its inner end (25) is pivotally connected to said main frame assembly (20) at or adjacent said longitudinal tilt axis of the board, bias or damping means (27) being associated with the inner ends of the transverse arms (22) and the parts being so made and arranged that the transverse arms may pivot about their inner ends under operating or load conditions against the action of said bias or damping means (27), the latter acting to return the transverse arms (22) to initial dispositions upon cessation of said operating or load conditions.
摘要:
There is provided apparatus for use in applying a treating liquid chemical to surfaces at or adjacent a longitudinal channel and including a first chemical applicator assembly (11) and a second assembly (10) mounted on a frame (31) adapted to be connected to and extend from one side of a tractor (9) or other conveyance whereby the applicator assemblies (11, 10) may be drawn along said surfaces and raised or lowered in use, each applicator assembly having an applicator head (14, 13) for supplying said liquid chemical and being mounted on a support housing (17, 16) having wheel means (21) therebeneath, the support housing (16) of the second applicator assembly (11) being further from the tractor (9) than the other and the two being hingedly interconnected and tiltable relative to the frame (31) and to each other about parallel longitudinal axes for treating adjacent parallel surfaces which are not co-planar, each support housing (17, 16) being mounted on its said wheel means (21) in such manner that the latter will engage the surface therebeneath to prevent the applicator assemblies (11, 10) being damaged by uneven or harsh terrain over which the wheel means (21) may pass during motion of the tractor.
摘要:
A rotary internal combustion engine of the type having pistons mounted for reciprocatory movement in respective cylinders which are arranged in equally-spaced relationship around a longitudinal axis of rotation, said axis being the axis of rotation of an output shaft passing rotatably and sealably through apertures of respective first and second end plates of a housing within which the pistons and cylinders move as part of a rotatable rotor assembly secured to said output shaft, while the pistons are simultaneously movable reciprocably in the cylinders, cam follower means being associated with each piston and adapted to coact with undulating cam track means around the housing. Cyclical combustion of fuel in the cylinders imparts reciprocation to the pistons with resultant thrust against the cam track means so as to cause rotation of the rotor assembly and output shaft. The pistons include two sets thereof each having at least two pistons, the pistons of each set being at opposite sides of the axis of rotation of the rotor assembly and output shaft and are interconnected by piston-connection means so that the pistons of each set move in unison, the parts being so made and arranged that the piston cam follower means coact with the cam track means in a manner ensuring that movement of either set of pistons in their cylinders is in the direction opposite to the direction of movement of the other set of pistons.
摘要:
The invention allows cool rooms or sea containers designed for frozen goods to handle produce requiring more precisely controlled temperatures and conditions, e.g. vegetables and fruits requiring temperatures in the chilling range and often also needing control or modification of the atmosphere. Each load of produce (100) (e.g. of pallet size) is held in the sea container or cool room but is sealed from the air of the refrigerated environment by, for example, a plastics bag (56). The atmosphere within the bag is then circulated by a fan (12) (or by convection currents from a heating element) so as to pass through the load and around it via ducts (30) provided adjacent the bag (56). Heat exchange (50) between the circulating gas and the refrigerated environment, via the plastics film, serves to cool the load. However if cooling is excessive a heating element can be used to raise the temperature of the circulating atmosphere. Gas composition of the atmosphere can be controlled by scrubbing, flushing, etc. via pipes from a central unit or at each load individually or by choosing semi-permeable plastic for the sealing bags.
摘要:
A method of testing for the existence of mastitis in milk from cows either from an individual cow or from a herd of cows, by (a) obtaining a sample of milk to be tested, (b) determining whether immunoglobulin G2 (IgG2) is present in said sample at a level above or below a predetermined level which is typically about 0.05 mg IgG2 per millilitre of milk, by an ELISA comparison with immunoglobulin standards, and (c) classifying the individual cow or herd of cows as mastitis affected if said immunoglubulin is present in said sample at or above said predetermined level.
摘要:
Nitrobenzyl mustard quaternary salts of formula (I), and the pharmaceutically acceptable salts thereof, process for their manufacture and their chemotherapeutic use as hypoxia selective cytotoxic agents. Wherein, X represents a linker chain -CR1R2- or CR1=CR2- (where R1 and R2 are separately H, lower alkyl, phenyl or nitrophenyl; Y is halogen or OSO2R; Q is lower alkyl (optionaly substituted with alkyl and/or ether groups and containing up to 6 carbons) or nitrophenyl; Ar represents a mono- or bicyclic aromatic unit, R is lower alkyl optionally substituted with alkyl and/or ether groups, and may contain up to eight carbon atoms. Z represents one or more of the groups NO2, SO2R, CONHR, R, OR, SR, CF3 and aza (ring -CH= replaced by -N=); with the proviso that when Y=Cl or Br, Q=Me, and X=-CH2- then Ar¸ 2-nitrophenyl or 4-nitrophenyl.
摘要:
A series of interconnected bags (3) and a method and apparatus for the manufacturing and charging thereof. A series of bags (3) are blow formed from plastics film tube (5) which integrally incorporates the recloseable elements (6) adjacent what will become a top (8) of each bag (3). The plastic film tube (5) is longitudinally slit opposite the recloseable elements (6) to provide connecting strips (12) extending along each side of what also becomes open bottoms (10) of the bags (3). Support rails (7) are provided, preferably integrally, on each strip (12). The recloseable elements (6) are engaged with one another prior to transverse seals (13) and severing cuts (14) being formed at bag forming intervals along the film material (5). The seals (13) and cuts (14) extend from the tops (8) of the bags (3) to the strips (12). The engaged recloseable elements (6) are thus enclosed and cutting the top (8) of a bag (3) is necessary to access the recloseable elements (6). The support rails (7) enable the bags (3) to be suspended bottom (10) uppermost and conveyed through a charging and sealing apparatus. Following charging the strips (12) are removed to separate the bags (3) therefrom and from one another.
摘要:
PCT No. PCT/GB94/00091 Sec. 371 Date Aug. 14, 1995 Sec. 102(e) Date Aug. 14, 1995 PCT Filed Jan. 17, 1995 PCT Pub. No. WO94/16111 PCT Pub. Date Jul. 21, 1994A method is disclosed of producing a corrosion resistant product from a billet comprising a core of finely divided ferrous swarf compacted into briquettes in a stainless steel jacket and in which the billet is heated to a temperature at which it becomes sufficiently plastic to be worked into a finished or semi-finished product by an operation such as rolling. An additive is pre-mixed with the swarf which, when the billet is heated, reacts to form an atmosphere inside the jecket which displaces or prevents the formation of carbon dioxide and/or other gases which at elevated temperatures would oxidise the stainless steel to form chrome oxides at the interface between the jacket and the core. The additive is preferably in powder form. Examples of suitable additives include urea and ammonium chloride.