baber/WOPTO huggingface dataset:
Patent GB-1456221-A (GB)
Title: 3-hydroxy cephalosporins their ether derivatives and methods for their preparation
IPC: A61K31/545
Filed: 1973-11-27
Abstract: 1456221 3 - Hydroxy - cephalosporins and ethers thereof ELI LILLY & CO 27 Nov 1973 [28 Nov 1972] 54889/73 Heading C2C Compounds II in which R3 is H or an acyl group derived from a carboxylic acid and R 4  is an ester-forming protecting group or, when R 3  is H, a salt thereof are prepared by reacting a Compound III or when R 1  is H, a salt thereof, with an oxidizing agent in an inert solvent at - 80 to 0 C. reducing the oxidized intermediate with SO 2 , NaHSO 3  or Me 3 PO 2  and recovering the desired product from the reaction mixture. Novel Compounds I in which R is H or R<SP>1</SP>-CO- in which R<SP>1</SP> is C 1-7  alkyl, C 3-7  alkenyl, CH 2 CN, CH 2 Br, CH 2 Cl, optionally protected 4-amino-4-carboxybutyl, 1,4-cyclohexadienyl, phenyl-(optionally substituted by halogen, OH, NO 2 , NH 2 , CN, C 1-4  alkyl, C 1-4  alkoxy, CH 2 OH, optionally protected aminomethyl, COOH or COOMe), (where R<SP>11</SP> is phenyl as defined above, Y is O or S and m is 0 or 1), R<SP>111</SP>-C(Z)H- (where R<SP>111</SP> is phenyl as defined above, or thienyl and Z is optionally protected hydroxy) or R<SP>1111</SP>-CH 2  (where R<SP>1111</SP> is thienyl, furyl, 2-thiazolyl, 2- oxazolyl or 1- or 5-tetrazolyl), R 1  is H, Me, Et, 3-methyl-2-butenyl or diphenylmethyl and R 2  is H or an ester-forming protecting group, or when R 2  is H, a salt thereof or when R 3  is H, an acid addition salt thereof, with the proviso that when R 1  is H, R 2  is an ester-forming protecting group are prepared by the above method to form Compounds I (R 1  = H) which are reacted with an appropriate diazo compound to form Compounds I (R 1  = Me, Et, 3-methyl-2-butenyl, diphenyl methyl; R 2  = ester-forming protecting group) and, if desired, removing the carboxyl protecting group by hydrolysis or hydrogenolysis. Compounds I (R = R<SP>1</SP>-CO) are also prepared by acylating a Compound I (R = H, R 2  = ester-forming protecting group) optionally followed by removal of the carboxyl protecting group. Compounds I (R and R 1  are other than H, R 2  is H) are reacted with a sodium or potassium base to form the corresponding sodium or potassium salt.
Patent GB-553872-A (GB)
Abstract: 553,872. Dyeing nylon. COURTAULDS, Ltd., and MACGREGOR, J. H. Nov. 6, 1941, No. 14305. [Class 15 (ii)] The dyeing affinity of nylon for direct cotton dyestuffs in an acid dyebath is modified by treating the nylon with a cationic soap as a pretreatment and/or by inclusion of the soap in the dye bath. The affinity of the nylon for the dyestuff is increased by the presence of 0.1 to 1.0 per cent. of the cationic soap on the weight of the nylon and partially or totally inhibited by the presence of 2 to 5 per cent. It is thus possible to produce two-tone effects in mixed fabrics. In an example, nylon fabric is soaked at room temperature, for 20 minutes in a solution of 30 grams of cetylpyridinium bromide in distilled water with acetic acid, rinsed and dved with acidified Chlorozol Fast Pink BK for 1 hour at 95 to 100‹C.
Patent GB-1059810-A (GB)
Title: Incandescent lamp
IPC: H05B3/00
Filed: 1965-12-31
Abstract: 1,059,810. Electric incandescent lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 31, 1965 [Dec. 31, 1964], No. 55499/65. Heading HIF. An incandescent lamp comprises a tubular quartz envelope of oval section containing two spaced filaments disposed, and electrically connected, in parallel. The filaments are supported by a series of spacers disposed along the envelope and are connected at their ends to separate molybdenum foil sections disposed in the press seals. Alternatively, a single foil section may be provided in each seal. The ratio of the height to the width of the envelope is preferably in the range 1-25 to 1-75:1.
Patent GB-1165169-A (GB)
Title: Combustion Chambers
IPC: F23R3/26
Filed: 1966-12-12
Abstract: 1,165,169. Air supply for burners. SULZER BROS. Ltd. 12 Dec., 1966 [27 Jan., 1966], No. 55568/66. Heading F4T. A cylindrical combustion chamber 1 has an oil burner 33 extending through an opening 10 in an end cover 9, air being supplied from inlet apertures 2 via an adjustable annular arrangement of swirl vanes 13 and an orifice plate 21 to the combustion space 6. The space 6 is formed by a telescoping jacket 7 supported and guided on a jacket 4. A cylinder 11 mounted in cover 9 supports vane spindles 12 which are connected to an adjusting cylinder 16 rotatable and axially movable by means of rack and worm 29, 31 and rack and pinion 30, 32 on the outer surface of a control cylinder 27. The orifice plate is supported by a cylinder 18 which is in turn supported from jacket 7 by fixed vanes 24. The downstream end of cylinder 18 is flared at 25. The orifice plate is funnel-shaped, converging in the direction of air flow, and a collar 23 depends from the orifice 22 whose plane contains the burner nozzle aperture 35. The burner may be of the split type and surrounded by a pipe 34 supplied with cooling air or gaseous fuel.
Patent GB-1439477-A (GB)
Title: Method of operating a respirator and an apparatus for applying said method
IPC: A61M16/00
Filed: 1973-12-10
Abstract: 1439477 Lung ventilators MAU MEDICINSK AUDIOVISUELL UNDERVISNING AB 10 Dec 1973 [13 Dec 1972] 57181/73 Heading A5T Respiratory apparatus comprises a supply chamber KRM to which gas is supplied from a source under pressure via an inlet valve KIV a separation valve SV for directing gas to the lungs via a patient connection chamber PM and tracheal connection T an exhalation valve PUV to control the release of exhaled gas to atmosphere; and a control circuit EIM for operating the components from a metering unit MM which detects supply chamber pressure. Sufficient gas for a single breath is delivered from source through the open valve KIV to the supply chamber and there retained until the valve SV opens when inlet valve KIV is closed. The outlet valve PUV also being closed, gas then flows to the recipients lungs. When the separation valve closes the outlet valve PUV opens to allow gas to be exhaled and, simultaneously the inlet valve KIV opens allowing the supply chamber to be recharged. The pressure sensing module MM is connected to the pressure chamber and to the control circuit which operates the valves in sequence to control the breathing rate. The metering unit may comprise a manometer MM Fig. 4 (not shown) with an impulse generator (IG) operable over an adjustable pressure range set in accordance with an associated scale (12) of recipients body weight. During operation the individual breath volume is indicated by the manometer reading against a scale (13). An alternative supply chamber has provision for volume adjustment by a motor driven piston (M, K) Fig. 2 (not shown) and operates with fixed maximum pressure, the individual breath volume being dependent on the volume selected for the supply chamber.
Patent GB-1285739-A (GB)
Title: Method and apparatus for cutting large boards into single panels
Inventor: BENUZZI GINO
IPC: B27B27/04
Filed: 1969-11-21
Abstract: 1285739 Dividing wooden panels G BENUZZI 21 Nov 1969 [21 Nov 1968] 57187/69 Heading B5L A method of cutting large boards into smaller single panels comprises advancing the boards P, Fig. 1, stepwise in a first direction through a first intermittently operating cutting device 1 and dividing them by means of a succession of parallel cuts transversely of said first direction into a number of elongate sheets L, and subsequently advancing at least some of the sheets L in a second direction transverse to the first direction stepwise through a second intermittently operating cutting device 2 and cutting each elongate sheet by a succession of parallel transverse cuts into a plurality of single panels T. The boards may be advanced in uniform or variable steps to provide sheets of differing widths and the sheets may be advanced in uniform or variable steps by a single pusher 6 or a plurality of individual pushers to produce panels of differing dimensions. A pair of the second cutting devices may be provided to which batches of sheets cut by the device 1 are fed alternately. A further cutting device may be connected prior to the device 1 for initially cutting boards to length. The devices 1, 2 may each include a circular saw and clamping device as described in Specification 1,232,800. In apparatus described for carrying out the method, boards are lifted in turn from a stack V, Fig. 5, by a suction gripper 24 and carried thereby, along tracks 27 to a position above swingable frames 13 including rollers 14. The boards are stacked on the rollers 14 until a measuring device operates to stop movement of the gripper 24. The frames 13 are then swung outwardly to lower a batch of boards on to the workpiece support 11 of the longitudinal cutting device 1, and then swing inwardly above the batch ready to receive the next batch. The boards are positioned on the support 11 by a device 30 and side pushers, not shown, and then advanced stepwise through the cutting device 1 by a pusher 5. The longitudinal sheets produced by the cutting are pushed on to rollers 42 of swingable frames 40, and when all the sheets produced from one batch of boards are present on the rollers the frames 40 are swung outwardly to lower the sheets on to the workpiece support of the transverse cutting device 2. The frames then swing inwardly ready to receive the next batch of sheets. The sheets are then positioned by devices 44, 130, before they are advanced stepwise by a pusher 6 through the device 2 to form the single panels.
Patent GB-1123319-A (GB)
Title: The determination of the effective diameter of conical screwthreads
IPC: G01B3/40
Filed: 1966-12-21
Abstract: 1,123,319. Measuring thread diameter. SIEMENS-PLANIAWERKE A. G. FœR KOHLEFABRIKATE. Dec. 21, 1966 [Dec. 21, 1965], No. 57312/ 66. Heading G1M. In apparatus for determining the effective diameter of a conical member 3, balls or wires 4-7 are interposed between the threads of member 3 and trapezoidal measuring blocks 1, 2, one of the angles of the block being of the same dimension as the angle of the cone. The effective diameter is then calculated from the measured distance X.
Patent GB-1412448-A (GB)
Title: Arrangement for limiting the steering effort in hydraulic  servoassisted steering systems
IPC: F15B9/08
Filed: 1972-12-14
Abstract: 1412448 Power-assisted steering mechanism K-H THOMAS [trading as LANGEN and CO] 14 Dec 1972 [17 Dec 1971] 57756/72 Heading B7H In a hydraulically-assisted steering system including a control valve 3 exercising "two-edge" control over a servo motor 4 having major and minor piston faces f 2  f 1  in respective working chambers 28, 27 which communicate with hydraulic reaction chambers 13, 17 containing reaction faces F 1 , F 2  on the control valve spool 8, there is provided an arrangement for limiting the effort required to operate the system wherein the working chamber 28 is connected to the associated reaction chamber 17 through a throttling construction 19, the working chamber 27 communicates with the reaction chamber 17 through a valve 23 which opens when the pressure in the chamber 17 falls below a predetermined minimum value or when a predetermined pressure differential between the working chamber 27 and the reaction chamber 17 is exexceeded, and the pressure in the reaction chamber 17 is prevented from exceeding a predetermined maximum value by a pressure limiting valve 21. The valve 23 may be a spring. loaded ball valve (Fig. 4, not shown) which opens when a predetermined pressure differential exists across it. In another embodiment (Fig. 2, not shown) there is only one reaction face on the control valve spool, the other reaction face being formed on a piston which acts on the spool through a lever. The servo motor piston may have equal effective areas on both sides, pressure fluid being supplied to one side through pressure reducing means.
Patent GB-1447654-A (GB)
Title: Electro-optical devices
IPC: G02F1/137
Filed: 1973-12-18
Abstract: 1447654 Liquid crystal compositions HITACHILtd 18 Dec 1973 [18 Dec 1972] 58542/73 Heading C4X The electrical and electro-optic properties of a Schiff base type nematic liquid crystal compound or composition are modified by the addition of 0À01 to 1À0% by weight of an alkyl iodide having 1-4 carbon atoms. It is suggested that a quaternary "onium" iodide is formed with a molecular structure closely similar to the nematic material and being greatly soluble therein. The modified material is particularly useful in multiplexed multi-segment displays.
Patent GB-1406437-A (GB)
Title: X-ray image converters
IPC: H01J29/38
Filed: 1971-12-16
Abstract: 1406437 X-ray image converters ENGLISH ELECTRIC VALVE CO Ltd 1 Dec 1972 [16 Dec 1971] 58580/71 Heading H1D An X-ray image converter has a photocathode 3 of silicon treated to have negative electron affinity, e.g. by means of a coating 4 of a semiconductor such as Cs 2 O or CsF, means being provided to accelerate the photoelectrons to derive an image or signal representing the image. In Fig. 2 the photoelectrons impinge on a storage target 12 scanned by a beam 15, the repelled electrons being collected by electron multiplier 18 to give an electrical signal at 19. In Fig. 1 (not shown) the photoelectrons are accelerated to a phosphor screen (8) to give a visible image. The silicon photocathode can form part of the envelope.
Patent GB-1216320-A (GB)
Title: Damper
Inventor: BAIER ROBERT J
IPC: F16F9/10
Filed: 1967-12-28
Abstract: 1,216,320. Shafts; damping vibrations; yieldingly mounted bearings. BOEING CO. 28 Dec., 1967 [5 Jan., 1967], No. 58886/67. Headings F2A, F2S and F2U. A drive shaft assembly for operation at super-critical speeds comprises a main drive portion 10 connected at a node 16 by a flexible coupling 13 to a dual member consisting of an inner torque shaft 12 surrounded over a portion of its length by a concentric sleeve 11, the reduced free end 17 of which constitutes an antinode and is connected through a bearing 18 with a viscous shear-type vibration damper 15. The latter comprises two sets of annular discs, each of which is formed from a pair of spaced bi-metallic elements 21, 26, the axial separation of which varies according to temperature to counteract the effect of viscosity changes, the discs flattening from the form shown with increasing temperature to reduce the film thickness. The annular walls 23 of the damper housing are elastomeric.
Patent GB-591722-A (GB)
Abstract: 591,722. Gyroscopic apparatus. BENDIX AVIATION CORPORATION. Feb. 26, 1945, No. 4803. Convention date, Feb. 9, 1944. [Class 97 (iii)] Centralizing and locking mechanism is provided separately for each of the two perpendicular axes of suspension of a universally mounted gyroscope and the two mechanisms are brought into operation simultaneously. In the gyro vertical shown, a rod 40, slidably mounted on the gimbal ring 15, carries a roller 50, which cooperates with a cam 52 on the transverse trunnion 16 of the rotor casing 14 to centralise the latter, and a lateral arm 44 with a roller 43, which co-operates with a cam surface 49 fixed to the outer casing by a bracket 19 to centralise the gimbal ring 15 about the fore-and-aft axis 17, 18. The rod 40 is actuated, through a cushioning spring 55, by a sleeve 39 connected by a bracket 38 to one end of a lever 35 which is pivoted at 37 on the gimbal 15 and carries at the outer end a roller 34. The latter is adapted to be engaged by a bail 33 fixed on the sliding rod 25, which is pushed to the right against the action of a spring 32 by a cam surface 24 on the operating knob 21. The caging rod 40 is withdrawn by spring 56 when the operating knob 21 is turned in the opposite direction.
Patent GB-1245602-A (GB)
Title: Improvements relating to mounting and contacting dry cell batteries
Inventor: ROBERTON JAMES SAMUEL PATERSON
IPC: H01M50/50
Filed: 1968-12-13
Abstract: 1,245,602. Electric couplings. STANDARD TELEPHONES & CABLES Ltd. 11 Dec., 1969 [13 Dec., 1968], No. 59342/68. Heading H2E. Connections to a dry cell having a central positive electrode 11 and a cylindrical negative can with a bevelled inner edge 10 are both made at one end of the cell by means of spring contacts 30, 40 respectively which are fixed to a square insulating plate 20 having a central hole (21, Figs. 2, 3, not shown) and an integral bush 22. Contact portion 31 is fitted upwards into the hole (21) and tabs 34 folded over two edges of the plate 20 to retain the contact 30. Ring portion 41 of the contact 40 is so fitted over the bush 22 that tabs 44 may be folded under the other two edges of the plate 20. The positive electrode 11 is located within the bush 22 on the contact portion 31 and the connection to the cell can is made by tabs 46 on two semicircular spring arms 45. Connecting leads are usually attached to a tab 34 and a tab 44, but a separate connecting tab (64, Fig. 10, not shown) may be provided. The invention is described in relation to a hearing aid (Figs. 18, 19, not shown) having two cells in series but other uses are suggested. The tabs 44 may be omitted if the inner surface of the ring 41 is serrated. Alternative contact forms are described including single and composite wire springs (Figs. 13-17, not shown).
Patent GB-1335597-A (GB)
Title: Meat analogue apparatus
Inventor: LIEPA A L
IPC: A23J3/22
Filed: 1971-12-21
Abstract: 1335597 Moulding meat substitutes PROCTER & GAMBLE CO 21 Dec 1971 [28 Dec 1970] 59348/71 Heading B5A Apparatus for moulding a sheet of meat substitute includes a hopper 21 supplying the substitute in dough form to the converging space 23 provided between opposed runs of endless conveyers 28, 29 associated with heated support plates 30, 31 and back-up plates 33, 34 whereby the dough is transformed into coagulated or coagulated and cooked substantially parallel bonded fibres extending transversely of its length. Stationary divergent spacers 75, 76 slidingly seal against the conveyers and extend from the dough feed plane 55 to an end-squeeze plane 56 and abut the sides 63, 64 of the hopper. The spacer divergence is such that all imaginary transverse sections 26 are substantially equal in area; the divergence may be used to control the density of the finished product. In an alternative construction a convergent conveyer space is followed by a parallelepipedal space between the conveyer runs and the feed hopper extends above and embraces the feed end of the upper conveyer as it passes around an end roller. The dough is heat coagulated in the convergent space and then cooked in the parallelepipedal space. In such construction divergent spacers extend either to the end of the convergent space or to the product outlet space between the conveyers.
Patent GB-1434030-A (GB)
Title: Gas p'rification
IPC: C10K1/12
Filed: 1972-12-22
Abstract: 1434030 Hydrogen cyanide removal WOODALL-DUCKHAM Ltd 6 Dec 1973 [22 Dec 1972] 59406/72 Heading C5E HCN is removed from a foul gas stream, e.g. a coal carbonization gas product, by washing with circulating alkaline polysulphide wash liquor while continually bleeding-off a sidestream of the liquor, in an amount to maintain a predetermined thiocyanate level in the circulating liquor, and continually restoring the polysulphide level in the circulating liquor, by subjecting the sidestream to high-temperature hydrolysis in a non-oxidizing atmosphere, and extracting at least the H 2 S product of the hydrolysis from the gaseous hydrolysis products. The non-oxidizing atmosphere may comprise the stoichiometric or sub-stoichiometric combustion products of a fuel-air mixture; the hydrolysis taking place at 500‹ to 800‹ C. for 5 to 15 seconds. The wash liquor may comprise ammonium polysulphides and the gaseous products of the hydrolysis are recycled to the foul gas stream, or the wash liquor may comprise alkali metal polysulphides giving solid products upon hydrolysis, the solid products being  recovered and returned to the circulating wash liquor. The gaseous hydrolysis product may be recycled up or down-stream of the polysulphide washing and the H 2 S removed from the combined gas stream.
Patent GB-1440490-A (GB)
Title: Telomers and their use in a process for the stabilisation of aqueous solutions of formaldehyde
IPC: C07C67/00
Filed: 1973-12-21
Abstract: 1440490 Telomers derived from vinyl acetate polymers SOC CHIMIQUE DES CHARBONNAGES CdF CHIMIE 21 Dec 1973 [26 Dec 1972] 59455/73 Addition to 1362746 Heading C3P [Also in Division C2] Telomers comprise at leat 10 wt. per cent of 1,3-dioxane groups of the formula and from 5-25 wt. per cent of chlorine, the remainder consisting principally of units derived from vinyl acetate and vinyl alcohol, and have a limiting viscosity index determined in dimethyl formamide at 30 C. of between 2 and 10 cm.<SP>3</SP> g., and contain substantially no molecules having a degree of polymerization greater than 20. The telomers may be made by telomerization of vinyl acetate and carbon tetrachloride using a free radical initiator, reacting the product in a solvent with an oxidizing agent such as H 2 O 2  to convert acetate groups to alcohol groups, and then acetalizing the OH groups with formaldehyde and finally removing the molecules with a D.P. greater than 20, by fractionation. The Specification 1,362,746 is referred to.
Patent GB-1381882-A (GB)
Title: Process for the production of physically modified synthetic fibres
IPC: D01D5/34
Filed: 1971-12-23
Abstract: 1381882 Invaginated filaments ASAHI KASEI KOGYO KK 23 Dec 1971 [24 Dec 1970(2)] 59870/71 Heading B5B Conjugate sheath/core filaments, in which the sheath and core are of different materials, are spun through a spinneret, as in Fig. 1, which has a zone 5 which introduces turbulent flow into the extruded melt. The resultant filament has a cross-section, like that illustrated in Fig. 3, where the interface between the layers is irregular. By treating the conjugate filament with a solvent which dissolves only one of the materials used a filament having an invaginated surface or a tubular filament having an invaginated inner surface, illustrated respectively in Figs. 4 and 5, may be produced. The conjugate filaments exemplified are; Example 1, a core of polyethylene terephthalate in a sheath of polycaproamide; Example 2, the same materials reversed; Example 3 a core of polyhexamethyleneadipamide in a sheath of polystyrene and Example 4 a copolymer of #- caprolactam and hexamethylene diadipate as the sheath and polyethylene terephthalate as the core. The yarns are suitably stretched before solvent treatment.