baber/WOPTO huggingface dataset:
Patent GB-1331896-A (GB)
Title: Hemodiazlyzer with tapered slit blood ports and baffles
IPC: A61M1/00
Filed: 1972-05-15
Abstract: 1331896 Hemodialyser UNITED STATES ATOMIC ENERGY COMMISSION 15 May 1972 [3 Feb 1972] 22686/72 Heading B1X A hemodialyzer comprises a rectangular casing containing a plurality of flattened semipermeable membrane tubes arranged in parallel in a stack therein; a dialysate inlet and a dialysate outlet located on opposite ends of said casing; means associated with said dialysate inlet and outlet for passing dialysate fluid through said hemodialyzer within said flattened tubes; a blood inlet port located on a side of the casing at one end thereof and a blood outlet port located on a side of the casing at the opposite end thereof, each of said two blood ports being a tubular conduit mounted across the width of a side of the hemodialyzer casing; means associated with said blood ports for passing blood through said hemodialyzer across and between said flattened tubes; and means for causing the blood to flow in a sinuous path in its passage from said blood inlet port to said blood outlet port, whereby the blood flows across the flattened tubes a multiple number of times. As shown, 2 indicates one surface of one of a stack of flattened tubes; 3 and 4 are the inlet and outlet for dialysis fluid, 7 and 8 are the inlet and outlet for blood; 9 and 10 are baffles which cause the blood as shown by the arrows to flow three times across the surface of the tubes.
Patent GB-951732-A (GB)
Title: Therapeutic composition having a blood cholesterol lowering action and containing nicotinic acid n-oxide
IPC: A61K31/00
Filed: 1962-06-14
Abstract: Nicotinic acid N-oxide is prepared by heating with stirring nicotinic acid, acetic acid and perhydrol until no further gas is evolved.  Its salts, e.g. the sodium and magnesium salts, may be prepared by salification with the corresponding base.ALSO:Pharmaceutical compositions having blood cholesterol lowering activity comprise a carrier and nicotinic acid N-oxide having the formula <FORM:0951732/A5-A6/1> or a pharmaceutically acceptable salt thereof, e.g. the sodium or magnesium salt.  They may be in conventional forms suitable for oral, parenteral and rectal administration, e.g. a tablet, pill, powder, capsule, injectable solution or suppository.
Patent GB-628526-A (GB)
Title: Improvements in knitted fabrics and machine and method of knitting the same
IPC: D04B1/26
Filed: 1944-11-17
Abstract: 628,526. Knitting-machines. SCOTT & WILLIAWS, Inc. Nov. 17, 1944, No. 22880. Convention date, Nov. 13, 1943. [Class 74 (ii)] A circular machine for knitting stockings is provided with two or more feeders 89, 94 with knitting cams so arranged that during reciprocatory knitting in forming the heels and toes, the needles knit at each feeder in each direction of movement. At the same time needle selection during narrowing and widening is such that in widening, a group of needles added during the knitting of one or more courses divides a group of needles which were narrowed together. In a machine having two feeders, the knitting cams comprise a central cam 9, forming the first stitch cam in each direction of reciprocation, second stitch cams 12, 13 and guard cams 10, 11. The stitch cams 12, 13 serve also as first clearing cams in the opposite direction of reciprocation, and the second clearing cams are movable cams 14, 15. A link 20 connects the cams 14, 15 so that when one is moved by the needles to an inoperative position the other cam is moved to an operative position. One set only of widening pickers 47 and narrowing pickers 45, 46 is provided for lowering and raising the needles, so that change in the number of needles can occur only at each second course. During rotary knitting, the position of the cams remains constant, knitting occurring at both feeders. At the commencement of reciprocatory knitting, the position of the movable clearing cams is reversed so that the needles can knit in the opposite direction of reciprocation. At the same time the sinker cap oscillates to maintain the cam raceway of the sinker cap in timed relation with the needleactuating cams. The long butt instep needles are raised to and lowered from an inoperative position, at the beginning and end of reciprocatory knitting, by switch cams. Narrowing of the fabric during reciprocatory knitting is effected by the narrowing pickers 45, 46 pivotally mounted on swivel housings 52, 53 and connected by a linkage 61, raising the leading operative needles at the beginning of each reciprocatory movement to an inoperative position. Two or more steps may be provided on each narrowing picker and pattern controller cams 66, 67 move the pickers to a position to select either two or more needles. A widening picker 47 returns the needles to an operative position and pickers which return either three or four needles may be fitted to the machine. In narrowing and widening, the pickers are controlled by patterning mechanism so that the number of needles removed from or added to the active needles can be varied. The stocking knitted by a two feeder machine consists of yarns Y, Y<SP>1</SP>, knitted in alternate courses 172, 173, during rotary knitting, and has two courses 175, 176, Fig. 31, of one yarn alternating with two courses 177, 178 of the other yarn during reciprocating knitting. Specifications 12722/13, [Class 74 (ii)], 355,062, 473,924 and 628,590 are referred to.
Patent GB-743446-A (GB)
Title: Improvements in or relating to aromatic 2-aminoalkanediols-(1.3)
Filed: 1953-08-20
Abstract: Propanediols of the formula R1-CHOH-CH(NHR2)-CH2OH where R1 is phenyl or substituted phenyl and R2 is hydrogen or a carboxylic acyl residue are nitrated and the resulting nitric ester hydrolysed to give a product where R1 contains a nitro group; the hydroxyl groups in the starting material may be present as a cyclic acetal or ketal which is hydrolysed by the nitric acid; similarly when R2 is not acyl the amino group may be protected as a Schiff's base (which may contain some of the corresponding oxazolidine).  No stereo-inversion or optical racemization occurs during the reaction.  The nitration is preferably carried out at -45 DEG  to +25 DEG  C., and particularly below 0 DEG  C.  The hydrolysis of the nitric ester groups is desirably effected in the presence of an agent which destroys nitrite (e.g. sulphamic acid or urea) and/or a reducing agent (e.g. a ferrous salt).  The products are preferably isolated as their derivatives with aldehydes, and such derivatives may then be acylated to introduce the group R2.  Valuable products are obtained by acylation with an ester of a halo-fatty acid (e.g. dichloracetic) in the presence of an alkaline salt such as an alkali metal carbonate or salt of a fatty acid or halofatty acid.  The aldehyde group is then hydrolysed off by treatment with water, preferably in the presence of an immiscible solvent.  In the examples: (1) the nitrate salt of dl-threo-1-phenyl - 2 - aminopropane - 1 : 3 - diol (from 2 : 2 - dimethyl - 5 - amino - 6 - phenyl - 1 : 3 - dioxane and nitric acid) is treated with fuming nitric acid and sulphuric acid to give the nitrate salt of the di-nitric ester of dl-threo-1-(p-nitrophenyl) - 2 - aminopropane - 1 : 3 - diol, hydrolysed to the free diol; (2) the product of (1) is condensed with benzaldehyde, acylated with methyl dichloracetate and hydrolysed to dl-chloramphenicol; (3) as in (2) using methyl bromacetate for the acylation; (4) as in (1) starting from dl-threo-2 : 2-pentamethylene-5-amino-6-phenyl-1 : 3-dioxane; (5) the process of (1) and (2) is carried out with the l-threo isomer giving chloramphenicol; (6) threo-1-phenyl-2-aminopropane-1 : 3-diol is condensed with benzaldehyde to give a mixture of the Schiff's base and the oxazolidine; the mixed product is nitrated and treated as in (1) and (2) to yield dl-chloramphenicol; (7) as in (6) condensing with benzaldehyde after the nitration; (8) as in (7) using the optically active form to give d-( - )-chloramphenicol; (9) dl-threo-2 : 6-di-phenyl-5-amino-1 : 3-dioxane (see Specification 735,454) is nitrated, the nitric ester groups hydrolysed and the product isolated as its n-butyraldehyde derivative; (10) dl-threo-1-phenyl - 2 - dichloracetylaminopropane - 1 : 3 - diol is nitrated and the nitric ester hydrolysed to give dl-chloramphenicol; the l-threo form may be treated similarly.
Patent GB-698649-A (GB)
Title: Pulp molding die
Inventor: SHEPARD ERNEST LYNWOOD
IPC: D21J7/00
Filed: 1951-10-03
Abstract: 698,649. Moulding pulp. KEYES FIBRE CO. Oct. 3, 1951, No. 23013/51. Class 87 (ii) An open-face pulp-moulding die for making egg holders &c. having a suction chamber 45, comprises a die plate 2 and a die ring 6 defining the moulding area, the die plate having draining holes 14 and a number of grooves 18 which divide the die into sub-areas 22. Each sub-area is covered by a wire-mesh hood 32 having flanges 38 which extend into the grooves 18 and are held frictionally within these grooves which may have locking strips 46 for this purpose. The hoods 32 adjacent the die ring 6 may have flanges 36, Fig. 4, which are secured by the die ring 6. Alternatively, these flanges may extend into a groove (not shown) similar to the grooves 18, running around the periphery of the moulding .area. The grooves 18 may extend as far as the edge of the die ring 6 or may extend a short distance underneath the die ring.
Patent GB-1509017-A (GB)
Title: Apparatus for constructing structures particularly for children's playgrounds and gardens
IPC: A63B9/00
Filed: 1975-05-23
Abstract: 1509017 Play structures G DE MOREAU 23 May 1975 [27 May 1974] 23017/75 Heading A6M [Also in Divisions A4, El and F2] Apparatus for use in constructing play structures or garden furniture fences comprises in combination logs 1 of undressed timber each of substantially equal cross section and each having two parallel bores 2, 2' separated by a predetermined modular distance, a plurality of junction bars 5 each having a diameter less than that of the bores 2, 2' and threaded ends 7, 7' to receive end stops 6, 6', spacer tubes 8 of greater external diameter than the diameter of the bores and of greater internal diameter than the diameter of the bars 5 such that the logs 1 may locate on the bars 5 spaced apart by spacers 8, which may be various lengths being an integral multiple of a modular length which may be substantially equal to the diameter of the logs 1, to form structures such as that shown in Fig. 5. The structure may also incorporate logs having sets of three or more parallel bores equidistantly spaced by the modular length between holes of logs 1.
Patent GB-282486-A (GB)
Title: Improvements in self lifting devices for agricultural implements
IPC: A01B63/18
Filed: 1926-09-18
Abstract: 282,486. Bingham, G. C. Sept. 18, 1926. Lifting-devices,power; wheels, arrangement of. -A lifting device for positively lifting and lowering a plough or other implement by the forward rotation of one or more travelling wheels comprises a casing mounted to rotate on the implement frame and having the axle of a travelling wheel eccentrically mounted therein, a toothed member or sun wheel geared to a toothed pinion or planet wheel on the axle and carried by the casing but free to rotate independently concentric with it, and catches for locking the casing and the toothed member against rotation, the catches being operated so that the toothed member is free when the casing is locked and and vice versa. The main part A of the casing is mounted to rotate on a fixed part A<1>. Within the casing is a loosely mounted toothed ring B gearing with a pinion E on the axle of the wheel D. A double-ended catch or pawl G is normally held by a spring in engagement with one or other of two diametrically opposite notches in a ring a carried by the rotatable part A of the casing. By partially rotating a rod K the pawl G may be moved out of engagement with the ring a into engagement with internal teeth b on the ring B. The pinion E then runs round the toothed ring B until the pawl G springs into the opposite notch in the ring a and releases the ring B. The rod K is operated from the driver's seat by cords or rods. Intermediate gearing may be provided between the toothed ring B and the pinion E. Fig. 2 shows the device applied to the land wheel D of a plough, which wheel is connected by bars M, N to a cross rod O provided with an arm P carrying the furrow wheel R, so that the wheels rise and fall together. The bar N is connected to the axle O by a pin- and-slot lost-motion connection which may be adjustable. A stop S is provided on the frame to engage the arm P. The lift-device may be actuated by a wheel which is brought into contact with the ground when required.
Patent GB-583716-A (GB)
Title: Improvements in or relating to relays for protecting electric circuits
IPC: H01H71/68
Filed: 1944-11-21
Abstract: 583,716. Automatic circuit-breakers. WEST & CO., Ltd., A., and PAVITT, F. J. Nov. 21, 1944, No. 23133. [Class 38 (v)] In a protective relay especially of the construction described in Specification 549,521, an upright arm 53 pivoted at its lower end at 54 extends up between two of the coils 1 and engages the rear end of the tripping plate 22 when the latter is in its normal position The arm 53 is biassed by a spring 55 so as to move to the position shown in dotted lines subsequent to the raising of the tripping plate 22 on the occurrence of an overload or underload. Contacts 51, 52, one of which is carried by the arm 53, are opened by movement of the latter and interrupt the circuit of a winding 7 of a main switch, causing the magnet frame 32 to fall and open the said switch. As the magnet frame falls it bears on an arm 56 rigidly fixed to the arm 53 thereby automatically returning the latter to its former position, where it is again held by the plate 22 which is also returned to its normal position in response to the opening of the main switch. Manual-opening of the main switch may be accomplished by a push rod 58 acting on contact 52. The arm 56 is made detachable in case automatic resetting is not required.
Patent GB-1420836-A (GB)
Title: Core module for nuclear reactors
IPC: G21C3/326
Filed: 1973-05-16
Abstract: 1420836 Reactor core modules ASEAATOM AB 16 May 1973 [17 May 1972] 23221/73 Heading G6C A core module for a nuclear reactor comprises four fuel assemblies 11-14 (only two shown) with an associated control rod unit 19, 20, 21, each fuel assembly resting on a separate core support tube 15-18 (only two shown) and all the core support tubes being attached to one and the same core support grid 24, the grid 24 resting on a control rod drive tube 25 housing the control rod shaft 21 and passing through a connection piece 26 in the bottom 22 of the reactor vessel. Between and around the core support tubes 15-18 is a control rod yoke 20 to the periphery of which control rod pins 19 are anchored. The peripheral tubes 30 in an array of such tubes contain and guide the control rod pins 19. The control rod shaft 21 connected to the yoke 20 extends down through the drive tube 25 to a drive mechanism (not shown). The yoke 20 is provided with guide rollers 27 which ride on the core support tubes 15-18. At their upper end the core support tubes 15-18 are held together by a support frame 28. The core support grid 24 is sealed from other core support grids 33, 34 by labyrinth seals 35. Locking rings 36 and seals 37 are arranged between the grid 24 and the drive tube 25. Coolant is fed up through the core support tubes 15-18, as indicated by the arrows 29, and throttling means for the coolant are arranged in the upper parts of the core support tubes. Three embodiments of throttling means are described in detail (Figs. 4 to 6, not shown). A throttled channel connection allows coolant to pass from the core support tubes to the annular gaps between the control rod pins 19 and the guide tubes 30.
Patent GB-1035136-A (GB)
Title: Improvements in and relating to the control of water supplies to plants
Inventor: WELLS DERRICK ALLAN
IPC: A01G27/00
Filed: 1964-06-04
Abstract: 1,035,136. Watering plants. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 3, 1965 [June 4, 1964], No. 23232/64. Heading A1E. A system for growing plants comprises a layer of porous material 2 in or on which plants can be grown and apressure sensitive device communicating through passage 11 with the layer and controlling the supply of water to the layer through perforated pipes 5. The device comprises a diaphragm 14 and switch 15 arranged to open solenoid valve 8 when the pressure at the switch falls below a predetermined value. The switch may act to close the valve when the pressure rises to a second predetermined value or alternatively the valve may be closed by a time-switch. As shown the plants are grown in pots 3 placed on a layer of sand 2 but the plants may be grown in a soil medium located above or replacing the sand.
Patent GB-199297-A (GB)
Title: Improvements relating to the reduction of oil leakage from and access of dust into engine crank cases
IPC: F01M11/00
Filed: 1922-08-28
Abstract: 199,297. Jenkins, B. O., and Traylor, J. F. Aug. 28, 1922. Crank cases.-A check valve for use in breather plugs on engine crank-cases consists of a thin disc 8 resting on a knife-edge seating 7, and guided-when raised by pressure of gases in the crank case-by a pin 10. The seating is formed on the top of a tube which has spring grips 14 to take on to the crank case or to an adaptor; a fillet 18 of packing makes an air-tight joint. The cap 1 over the valve is attached below the seating, so that the valve does not touch it.
Patent GB-774309-A (GB)
Title: Process and apparatus for the drying of damp material in pneumatic driers
IPC: F26B17/10
Filed: 1954-08-11
Abstract: 774,309. Pneumatic drying. BUTTNERWERKE AKT.-GES. Aug. 11, 1954 [Aug. 22, 1953], No. 23347/54. Class 34(2) In a method of drying minerals, peat, chemicals, wood or cellulose products, plastics &c. a gas current of relatively low temperature is conducted through a chamber as a vortex or envelope in the same axial direction as and around a gas current at higher temperature so that the two gas currents subsequently unite, the cooler gas serving as a carrier for the wet material. A high temperature gas current passes through a pipe 6 and a cooler current through a coaxial pipe 7, the material being fed through a tangentially opening pipe 8 and the two gas streams passing into a fan or disintegrator 9 and drying tube 12 to be thoroughly mixed and dry the material which is separated from the gas streams by a cyclone separator: Return gas enters tangentially through a pipe 5. Discharge section 3 may have 'a jacket 11 for cooling air or liquid. A multistage arrangement may be used, the exhaust air of one stage forming cooling air for another stage. In a modification of the apparatus the tube 5 is replaced by two pipe section in Y-formation no rotation of the cooler air taking place as it merely surrounds.the hot air from pipe 6 as a cooler envelope.
Patent GB-243483-A (GB)
Title: Improvements in concrete walls for buildings
IPC: E04B1/62
Filed: 1924-10-03
Abstract: 243,483. Moir, Sir E. W. Oct. 3, 1924. Reinforced concrete.-Reinforcements for concrete walls, piers, columns and the like cast in situ between shutters comprises flanged expanded or other apertured metal channel-section uprights a arranged in intertied pairs spaced apart base to base preferably with an interposed fibrous layer h separating the sides of the wall. The metal ties j, Fig. 6, between the uprights may be formed of spiral wire with the centre indicated by a spiral of different pitch. The flanges of the uprights may be stiffened by half-round channel strips and may support pre-cast concrete buttons c against which the shutters d rest and are held by wire ties e passing transversely through the uprights and obliquely downwards through sawcuts d<1> in the upper borders of the shutters, the ends of the ties being secured to cranked metal clip plates f. These clip plates support boards g which form recesses into which the superposed shutters may be inserted..The uprights are held in position by straining wires m led over supports or posts n at the ends of the wall and are further tied by oblique struts k.
Patent GB-878466-A (GB)
Title: Improvements to antenna devices
IPC: H01Q3/18
Filed: 1958-07-21
Abstract: 878,466. Aerials. SOC. NOUVELLE D'ELECTRONIQUE S.a.r.l. July 21, 1958 [July 26, 1957; Oct. 15, 1957], No. 23405/58. Class 40(7) An antenna device has a reflecting surface 1 consisting of reflecting elements located on toroidal surfaces having homo-focal parabolic generatrices constituting a grating, the reflecting elements being cut out on the surfaces in the vicinity of their intersection, so that firstly the locus of points on the reflecting surface causes cancellation of the third order aberration when the source of energy, a horn 3, feeding the device moves parallel to the axis of revolution of the toroidal surfaces and secondly the locus of further points reduces the second order aberration to a minimum for the whole of the operative portion of the reflecting surface. The horn 3 is located approximately at the common focus of the parabolas and rotates with the reflector. Specifications 677,457, 677,460 and 677,510 are referred to.
Patent GB-805114-A (GB)
Title: Improvements in or relating to spray driers
IPC: B01D1/18
Filed: 1956-07-30
Abstract: <PICT:0805114/III/1> A spray drier comprises a drying chamber into which the liquid to be dried is sprayed, and through which hot air is passed to effect the drying of the sprayed liquid wherein the drying chamber is fitted with a permeable fixed inner lining to which the sprayed or atomized particles of the liquid under treatment will not firmly adhere.  The drier may be used to process milk, soap, tan extract, malt extract, molasses or ureaformaldehyde resins.  The inner lining may be made of finely woven nylon, or from stainless steel or "Monel" (Registered Trade Mark) metal gauze.  In a preferred embodiment, the drying chamber has an upper cylindrical wall part 10 joined to a lower conical wall 101.  The liquid to be treated is sprayed into the top of the drying chamber by a spray device 11 fed from tank 12 and hot air under pressure is admitted into the top of the drying chamber through a pipe 13.  The dried solid particles which are produced pass out through a discharge outlet 14 in the apex of the lower conical wall part 101 while the air is removed through a discharge pipe 15.  The inner lining 16 in the form of a cylindrical curtain is fitted with hems and is attached to steel hoops or tubes 17 and 171 at the top and bottom respectively.  Dried particles will not normally adhere to the curtain but if they do they may be removed by shaking.
Patent GB-1421243-A (GB)
Title: Analysing data of a predetermined bit rate
IPC: H04L25/06
Filed: 1973-01-04
Abstract: 1421243 Digital data transmission DATABIT Inc 4 Jan 1973 [6 Jan 1972] 23487/75 Divided out of 1421241 Heading H4P The description is the same as that of Specification 1,421,241 but the claims relate to means for sampling the data at a given rate greater than the bit rate, and counting means responsive to a transition from one bit to the next and connected to the sampling means for counting at the sampling rate, the counting means producing an output when it reaches a count equal to half the expected number of samples during a bit.