baber/WOPTO huggingface dataset:
Patent GB-931484-A (GB)
Title: Fluid transfusion apparatus
IPC: A61M60/39
Filed: 1961-11-15
Abstract: 931,484. Surgical pumps. W. D. WORTHINGTON. Nov. 15, 1961 [Nov. 29, 1960], No. 40819/61. Class 81 (2). [Also in Group XXVIII] Apparatus for blood exchange comprises a first receptacle for new blood, a second receptacle for blood withdrawn from the patient, a two-chamber pump and valve means operated in synchronism therewith for connecting one chamber to the first receptacle and to the patient during the respective suction and pressure strokes therein, and for connecting the other chamber to the patient and to the second receptacle during the respective suction and pressure strokes therein. Intermeshed driven gear-wheels 10 and 11 carry crank pins 13 and 17 coupled by connecting rods 12 and 16 to pistons 15 and 19 disposed in cylinders 25 and 26 abutting a valve block 27 formed with a bore 47 containing a valve plunger 46. Cylinder 25 communicates with bore 47 via parts 56 and 57 which are aligned with ports 65 and 66 respectively. Cylinder 26 communicates with bore 47 via ports 58 and 59 which are aligned with ports 67 and 68 respectively. A lever 41, pivoted at 42, is pivoted at one end to plunger 46 and carries at its other end a follower roller 35 biased by a spring 35, disposed in bore 47, against a cam 34 rigid with gear 10. Port 68 is connected by a tube 104 to a receptacle 105 for fresh blood. Port 65 is connected by a tube 108 to a receptacle 109 for old blood. Bores 66 and 67 are connected by tubes 107 and 106 to receptacles 85 and 89 respectively, and the latter are interconnected by a tube 112 connected to a catheter 113. The pistons both move in the same direction and during their suction strokes roller 35 engages a high portion of cam 34 to displace plunger 46 to its left-hand position. Fresh blood will thereby be drawn into cylinder 26 via ports 59 and 68, while old blood will be drawn into cylinder 25 via catheter 113, receptacle 88 and ports 57 and 66. During the discharge strokes roller 35 engages a low portion of cam 34 to shift plunger 46 to its right-hand position. Fresh blood from cylinder 26 will thereby be discharged through catheter 113 via ports 58, 67 and receptacle 89, while old blood will be delivered to receptacle 109 via ports 56, 65. Receptacles 88, 89 are provided with hand-operated air-release valves.
Patent GB-922432-A (GB)
Title: Improvements in or relating to arrangements for analog-digital conversion
IPC: H03M1/00
Filed: 1960-11-28
Abstract: 922,432. Analogue - to - digital converters. TELEFONAKTIEBOLAGET L.M. ERICSSON. Nov. 28, 1960 [Nov. 26, 1959], No. 40875/60. Class 40 (1). In an arrangement for converting an analogue voltage into an n-digit binary colded number, the analogue voltage is compared with a reference voltage corresponding to the value 2<SP>n-1</SP>, as a result of the comparison a further reference voltage corresponding to the value 2<SP>n-2</SP> is either added to or subtracted from the analogue voltage to form a new analogue voltage which is then compared with the reference voltage, and the precess is repeated, each time either adding or subtracting another or further reference voltage corresponding to values 2<SP>n-3</SP>, 2<SP>n-4</SP> and so on. In one embodiment, Fig. 2, the analogue voltage E A  is supplied to a comparator 3 through a summing device 1, comparator 3 gives an output on line b if. E A  is greater than the reference voltage E R , or on line a if E A  is less than E R . Clock pulses are applied in succession to the pairs of gates 8 from outputs 1-n of distributer 7, the appropriate gate 8 is opened by the output of comparator 3 to add + E R /2 or -E R /2 to E A  in   summation device 1. The output of the comparator, acting together with the pulse from output 2 of the distributer 7 then selects +E R /4 or -E R /4 and so on. Flip-flops 4 provide 4 4 a parallel digital output on terminals D 1 -D n  and a serial output appears at terminal D 8 . In the embodiment of Fig. 3, E A  is compared with E 5  at 1 in a first stage (terminal D 1 ), +E R /2 or E R /2 being added in device 5 whose output acts as the analogue input to the next stage in which +E R /4 or -E R /4 is added.
Patent GB-1403413-A (GB)
Title: Vehicle wheel making apparatus
IPC: B29C70/74
Filed: 1972-09-04
Abstract: 1403413 Vehicle wheels MOTOR WHEEL CORP 4 Sept 1972 [14 Oct 1971] 40877/72 Addition to 1306552 Heading B7C [Also in Division B5] The apparatus for moulding a plastics overlay 232 on to the outboard face of a metal wheel 204 described in Specification 1,306,552 is modified in that the lower mould part 202 has a resilient elastomeric sealing ring 224 adapted to seal against the radially outer peripheral edge of the outboard face of the metal wheel so that plastics poured or injected into the mould produces an overlay which extends up to the radially outer surface of, and axially outwardly beyond, the outboard extremity of the rim 208 of the wheel 204. The sealing ring 224 may be made of silicone rubber and may, as shown in Fig. 4, have an inner peripheral surface 256 inclined to the ring axis along which the outboard extremity of the rim 208 slides on insertion into the ring before coming into close fitting engagement with an adjacent cylindrical ring surface 254. The ring 224 is mounted on a split metal band 242 secured to the lower mould part 202 by screws and has a projection 246 engaging a corresponding groove in the mould part 202. The apparatus is further modified in that the upper mould part 206 is provided with an annular elastomeric pad 236 which in use seals against bosses 294 projecting from the mould part 202 and extending through vents in the disc 210 of the metal wheel. A further elastomeric seal ring 234 is provided on the lower mould part 202 and, in use, this ring seals against a portion of the disc 210 in which wheel mounting bolt holes 216 are provided. The seal ring 234 has a sprue 288 which, in use, is in communication with a funnel 312 in the upper mould part 206 and a notch in the lower mould part 202 whereby plastics material can be admitted to the mould cavity. The funnel 312 is opened and closed by raising and lowering a plug 314 using a lever 326 connected to an arm 322 on which the plug is mounted. A core 270 is provided on the lower mould part 202 for sealing against a tyre inflation valve hole 272 in the rim 208. Reference has been directed by the Comptroller to Specification 1,306,551.
Patent GB-1479322-A (GB)
Title: Monoazo pigments process for their preparation and their use
IPC: C08L33/02
Filed: 1974-09-23
Abstract: 1479322 Monoazo pigments HOECHST AG 23 Sept 1974 [21 Sept 1973] 41320/74 Heading C4P Novel monoazo pigments of the general Formula (I) in which R represents H or Cl or CH 3  in 6- or 7-position, may be obtained by diazotizing 2,5- dichloroaniline and coupling with an approppriate 5-acetoacetylaminobenzimidazolone. The pigment may be subjected to a thermal aftertreatment wherein an aqueous suspension of the pigment of moist press cake may be treated with water at a temperature of from 80 to 150 C., or with an organic solvent at a temperature of from 80 to 180 C., or the dried, non-treated pigment may be heated with an organic solvent at a temperature of from 80 to 180 C. The pigments may be used in metal-effect lacquers, printing pastes, colour lakes, and dispersion paints, for dyeing, colouring and printing textiles or paper. or for dyeing macromolecular materials in the spinning mass.
Patent GB-1206151-A (GB)
Title: Apparatus for irradiating articles
IPC: B01J19/08
Filed: 1967-09-11
Abstract: 1,206,151. Irradiation apparatus. SAINTGOBAIN TECHNIQUES NOUVELLES. 11 Sept., 1967 [9 Sept., 1966], No. 41335/67. Heading H5R. An irradiation apparatus comprises a radioactive source consisting of two independent cylindrical radio-active elements associated co-axially in end to end relationship one on each side of a horizontal plane of symmetry of an irradiation zone, a horizontal platform on which rows of articles to be irradiated can be arranged around the source and means for moving the rows successively along different linear paths in turn so that each article makes at least one complete circuit around the source and successively occupies each of a number of possible positions. Preferably the source unit is that indicated generally as 21 in Fig. 4 and each of the source elements 22 and 24 is provided with a positioning and storing mechanism comprising a source carrier e.g. 32 closely sliding in a cylindrical cavity e.g. 30 in a substantially hemispherical shield 28, each source carrier being rotatable about a horizontal axis e.g. 38 within the cavity, the source being brought into an irradiation position, as exemplified by source 22, or shielded, as exemplified by source 24, by rotating the source carrier about its cylindrical axis. The rotation of these carriers may be remotely controlled from outside by means of pulleys and flexible cables (Fig. 5, not shown). Preferably the axis on which each of the source carriers is mounted is situated below the centre of gravity of the assembly mounted on it when the source is in the irradiating position, so that the release of a locking device enables the source to return automatically to its shielded position by the force of gravity alone without relying on external power. The articles are preferably pushed around by rams. The source and conveyer systems are contained in a conventional shielded chamber.
Patent GB-1371794-A (GB)
Title: Tobacco-smoke filters
IPC: A24D3/04
Filed: 1971-09-06
Abstract: 1371794 Cigarettes; tobacco-smoke filters BRITISH-AMERICAN TOBACCO CO Ltd 16 Aug 1972 [6 Sept 1971] 41503/71 Heading A2C A tobacco-smoke filter or filter section comprises a wrapping 5 bounding a smoke passage and a disc 8 not exceeding 2mm in thickness and made of a packed layer of particles not exceeding 500 micron in diameter, the disc 8 being imperforate and so disposed across said passage that the smoke drawn therethrough is constrained to pass through the filtering material of the said layer. The particles may take the form of microspheres or small beads of glass, metal or plastics, and may simply be compressed or compacted or may be bonded to one another and, if required, to a supporting disk or disks. As shown, the filter may also comprise a conventional cellulose acetate filter 3, be provided with ventillation holes 4, and be attached to a cigarette 2.
Patent GB-1080798-A (GB)
Title: Improvements in or relating to a latch for motor vehicle door
IPC: E05B65/32
Filed: 1965-10-01
Abstract: 1,080,798. Door latches. ETABLISSEMENTS COUSIN FRERES. Oct. 1, 1965 [Oct. 7, 1964], No. 41718/65. Heading E2A. A latch for a door comprises a plate 1 supporting a semi cylindrical housing 16 for a part cylindrical, spring returned rotatable bolt 17 and a guide 3 mounted on the plate and with flanges 5, 6 and 7 extending at right angles to the guide and a rod 10 for a spring urged shoe 11 so that when the door is closed a striker 25 having two spaced teeth 28, 29 strikes a part cylindrical portion 31 projecting from the bolt rotating the bolt to allow entry of the striker into the guide either to the safety latching position with the bolt portion 31 between the teeth or to the complete latching position with the portion behind the tooth 28 against the shoe 11 which slides against the action of the spring 12 wedging against the flange 7. A surface 27 on the striker engages the flange 5. A spring 19 on an extension of the bolt returns the bolt to its initial position the portion 31 retains the striker in the latch. To release the latch an internal lever or an external lever connected therewith is operated to cause a nose 39 on the lever engaging in a recess in the bolt to rotate the bolt so that the portion 31 is removed from the path of the teeth. The striker is withdrawn from the guide 3 by the action of the spring 12 restoring the shoe to its initial position.
Patent GB-1463266-A (GB)
Title: Preparation of hydroxypivaldehyde
IPC: C07C45/80
Filed: 1975-10-13
Abstract: 1463266 Hydroxypivaldehyde SOC CHIMIQUE DES CHARBONNAGES 13 Oct 1975 [30 Oct 1974] 41784/75 Heading C2C A process for the production of hydroxypivaldehyde which comprises reacting formaldehyde with isobutyraldehyde in an approximate molar ratio of 1 : 2 in the presence of a catalytic amount of triethylamine, to produce a reaction mixture containing 42 to 50 wt. per cent of hydroxy-pivaldehyde, 28 to 35 wt. per cent of isobutyraldehyde, approximately 18 wt. per cent of water, approximately 2 wt. per cent of triethylamine, and approximately 2 wt. per cent of secondary reaction products, and recovering hydroxy-pivaldehyde therefrom, the recovering being effected by, (a) adding at least one part by weight of water to 1 part of the solution, distilling the solution obtained under reduced pressure at a temperature below 65 C., to produce a distillate containing isobutyraldehyde, triethylamine and water, and an aqueous solution containing hydroxy-pivaldehyde, (b) cooling the aqueous solution containing hydroxy-pivaldehyde to approximately 15 to 20 C. to cause the crystallization of hydroxypivaldehyde, filtering off the crystals obtained, washing the crystals with cold water and then drying the crystals in air, and (c) subjecting the mother liquors from the crystallization to liquid-liquid extraction at ambient temperature using approximately one volume of isobutyraldehyde to 3 volumes of the mother liquor to extract hydroxy-pivaldehyde from the mother liquor. The aqueous phase from the liquid/ liquid extraction may be distilled to remove isobutyraldehyde which may be recycled to the reaction as may the isobutyraldehyde extract containing hydroxypivaldehyde. The organic phase of the distillate from step (a) may also be recycled.
Patent GB-1385532-A (GB)
Title: Apparatus for use in graphic arts
IPC: G03B27/32
Filed: 1972-09-11
Abstract: 1385532 Determining copy density LOGETRONICS Inc 11 Sept 1972 [9 Sept 1971] 42012/72 Heading G1A [Also in Division G2] The copy density of an area being investigated for the purpose of art reproduction by for example photographic methods is determined by a head 10 Fig. 1a, which is movable to different positions on the area and connected in circuitry which produces a pair of signals based respectively on the minimum and maximum optical densities encountered. The head elements, source 13 and photocell 15 are housed to slide in a base 11 having a sighting aperture 16 through which light from the source is applied to the surface when the housing is moved on the base 11 to its operating position (shown dotted), a standard of reference surface 17 being positioned in the base for calibration when the housing is retracted. The output from the photo-cell 15, after logarithmic conversion is compared with a reference voltage to produce an output in "minimum" circuitry, or, in "maximum" circuitry a voltage corresponding to the minimum being set on potentiometer 38 which is progressively set by motors 30 as lower voltages are encountered and a voltage corresponding to the maximum being set in a similar manner on a potentiometer 43 by motor 31. The motors driving the potentiometer wipers may also drive punch card recording apparatus 50, 52 in which a hole is punched, in a position corresponding to the respective density, around the circumference of a respective circle for control of a subsequent exposure or printing process. Compensation for flare light and U.V. may be provided. In the photographic equipment the punched card 51, Figs. 4a, 4b establishes two voltages corresponding to max and min density on potentiometer 81, 80 and exposure is controlled by controlling the time of main and flash light sources, 99, 120. This is achieved by transferring the potentiometer voltages to capacitors C 1 , C 2 , C3 to serve as comparison references for integrating circuits 95, 116, which integrate the outputs of photo-elements 98, 121 and cut-off the lamp or lamps when the difference is zero.
Patent GB-944649-A (GB)
Title: Two-part machine element made from pressed sintered materials
IPC: F16D1/116
Filed: 1962-11-08
Abstract: 944,649. Securing starter pinions &c. to race rings &c. GARBE LAHMEYER & CO. A.G. Nov: 8, 1962 [Nov. 14, 1961], No. 42186/62. Headings F2C, F2Q and F2U. Two machine elements of pressed sintered materials, e.g. a starter pinion 1 and the inner race 3 of a friction ratchet clutch, are formed with axially projecting sets of interengaging teeth 5 held together by a part-ring 7 pushed into a common groove 8 in both sets of teeth.
Patent GB-1055140-A (GB)
Title: Helical scan magnetic tape apparatus with self-energized air lubrication
IPC: G11B15/61
Filed: 1965-10-05
Abstract: 1,055,140. Helical-scan record tape system. AMPEX CORPORATION. Oct. 5, 1965 [Feb. 12, 1965], No. 42245/65. Heading G5R. To provide an air bearing for magnetic tape 14 relative to the guide-drums 17. 18, these are counter-rotated by pulleys 53, 68 so that air is swept in under the tapes at the entry and exit points. The upper drum 18 carries the head 21 and its speed is servo-controlled in normal fashion, while the lower drum 17 may be driven from the tape-capstan motor. The apparatus is otherwise the same as that described in Specification 1,055,139.
Patent GB-1172743-A (GB)
Title: Compositions containing Monoepoxides
Inventor: MASSY DEREK JAMES ROWLAND
IPC: C08K5/1515
Filed: 1967-09-21
Abstract: 1,172,743. PVC compositions. CIBA (A.R.L.) Ltd. 26 Aug., 1968 [21 Sept., 1967], No. 42954/67. Heading C3P. Chlorine-containing polymers, particularly PVC, are stabilized and if present in sufficient amount, plasticized by the addition of a compound of the formula in which R<SP>1</SP> is C 4 -C 22  alkyl, cycloalkyl or alkenyl and R is a C 2+  divalent radical containing no epoxy group; phthalate, tetra- or hexahydrophthalate, hexachloroendomethylenetetrahydrophthalate and succinate esters are exemplified. Also present may be bariumcadmium stearate and dioctyl or diisooctyl phthalate.
Patent GB-1345056-A (GB)
IPC: G09G1/04
Filed: 1971-09-15
Abstract: 1345056 Cathode-ray tube displays HARRIS-INTERTYPE CORP 15 Sept 1971 [7 Oct 1970] 43037/71 Heading H4T An arrangement for compensating for non-linearity of CRT beam response comprises a digital data matrix store from which correction data for each of a number of spot positions may be read and passed to a digital-analog converter for production of a compensating analog signal. As described in relation to a display for production of a photographic film for phototypesetting, data from a computer CP passes to registers HS, VS &c. in which is held information on the size (HS, VS) of character and data for tracing it (HC, VC) as well as information on leading the film and ruling lines. The horizontal position at which a character is to be written is loaded into HS, and the six most significant bits address a matrix store CS holding data for correction of position (12) and also for correcting the X and Y character deflection signals (14, 16). These deflections are obtained from units 44 and 50 which effectively multiply the character trace signals by scale factors which are obtained from registers HS, VS as modified by the compensating signals. The horizontal position is derived from an interpolation unit 40 receiving the least significant position bits and modifying data from 14 as well as the unit 30, the compensation for which is applied via resistor 38. Correction of focus is obtained from the contents of store 18. The matrix stores are described as diode matrixes with the diodes provided as plug-in units. Specification 1,251,891, is referred to.
Patent GB-1004985-A (GB)
Title: Improvements in or relating to record sheet support devices
IPC: B42F17/18
Filed: 1960-12-14
Abstract: 1,004,985. Visible card indexes. W.E. COY. Dec. 14, 1961 [Dec. 14, 1960], No. 43040/60. Heading B6E. Record sheets 4 are interchangeably held in parallel overlapping array in a device comprising a metal board 1 having integral inwardly facing parallel channels 2, 3 extending along the top and bottom edges. Each sheet has two pages 13a, 13b, joined along one edge by a fold and is secured to a supporting member 5 comprising a strip portion 6 and cylindrical enlargements 7 by two clips 8 each of which is forced over an enlargement and the adjacent part of the portion 6 after the sheet has been folded thereabout in the region of its fold. The members 5 are arranged in the device with the clip-encased enlargements 7 acting as trunnions in the channels 2, 3, all the members being locked in by an inverted tray-like stop 19 having two bars 20 which fit into the channels, the stop being held by locating the rear end 21 of the tray in one of a series of grooves 22 formed between the ribs of a corrugated plate member secured to the board 1. Instead of using clips the sheets may be stuck around the portions 6. In a further modification the clips 18, Fig. 4, are pivotally mounted at the ends of a strip portion 14.
Patent GB-1196966-A (GB)
Title: Process for the Plasticisation of Alkyd Resins
Inventor: CHARLES JEAN PAUL
IPC: C08G63/50
Filed: 1967-09-22
Abstract: 1,196,966. Internally plasticized alkyd resins. PRODUITS CHIMIQUES PECHINEYSAINT-GOBAIN. 22 Sept., 1967 [27 Sept., 1966], No. 43191/67. Heading C3R. An internally plasticized alkyd resin is obtained by condensing a previously prepared monoester of a polycarboxylic acid or polyesterforming derivative thereof and a C 5-10  straightchain alkanol with at least one polyol and optionally a polycarboxylic acid or anhydride, the mixture containing at least one reactant having more than two ester-forming groups. Suitable acids and starting materials for the monoester are listed. A vegetable fatty acid or oil may be added. In examples, the monohexyl ester of tetrapropenyl succinic acid is condensed with trimethylolpropane and phthalic anhydride, and the monohexyl ester of trimellitic anhydride is condensed with linseed oil fatty acid and trimethylolpropane. The products are used to prepare paints and enamels, e.g. with aminoplast resins.
Patent GB-1128775-A (GB)
Title: Improvements in or relating to self-starting synchronous motors
IPC: H02K21/18
Filed: 1965-10-12
Abstract: 1,128,775. Synchronous motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 Oct., 1965 [15 Oct., 1964], No. 43209/65. Heading H2A. In a synchronous motor comprising a magnetic material stator 2 . . 4 mounting a coil 5 and so operatively positioned to a permanent magnet rotor 1 which is self-starting by vibration that during rotation a torque is produced having instantaneous positive and negative portions, it is stated that no-load rotation of the rotor is rendered more stable by reducing the negative torque portions by causing the radial component of rotor magnetization not to vary cosinusoidally at the circumference, and by so proportioning that part of the stator material surrounded by the coil that it is magnetically saturated under no-load conditions.
Patent GB-1477585-A (GB)
Title: Cutting implement
IPC: B26B5/00
Filed: 1975-10-21
Abstract: 1477585 Knives ALLWAY TOOLS Inc 21 Oct 1975 [21 Oct 1974] 43222/75 Heading B4B A cutting tool comprises a sleeve-like handle 12 having a slot 16 open at one end and a blade carrier 14 pivotally-mounted in the handle and movable from an open position in which a blade 22 can be removed or replaced and a closed position in which the carrier closes the slot with a portion of the blade exposed, the carrier being provided with a number of studs 50-56 for locating the blade thereon and a guide channel portion 20 which protects a portion of the cutting edge of the blade which is not exposed for use. The blade carrier 14 is formed with side portions 62, 64 having resilient protrusions thereon which serve to retain the carrier in the closed position; the carrier is also formed with resilient clips 42 which serve to retain a spare blade. The blade 22 is formed with holes 30, 32, 34 and notches 36, 38, 40 such that it can be located in two different cutting positions or a scraping position as shown in Fig. 1.