baber/WOPTO huggingface dataset:
Patent GB-1241655-A (GB)
Title: Improvements in or relating to cephalosporin compounds
Inventor: KENNEDY J
IPC: C07D501/04
Filed: 1967-08-21
Abstract: 1,241,655. N-Deacylating cephalosporin compounds. GLAXO LABORATORIES Ltd. 6 Aug., 1968 [21 Aug., 1967], No. 38492/67. Heading C2A. 7# - Acylamino - 4 - carboxy - cephalosporin compounds (other than those having at position- 7 a #-aminoadipoylamino group which are optionally blocked at the amino and/or carboxy groups) are N-deacylated by reacting with an imide-halide-forming reagent, converting the resulting imide halide into an imino ether and hydrolysing or alcoholysing the latter to give a 7#-amino-cephalosporin compound. The 4- carboxyl group of the starting material is preferably blocked, e.g. by esterification with an easily removable esterifying group such as a diphenylmethyl, t-butyl, #,#,#-trichloroethyl or silyl group. Any other functional groups which may be present are blocked if necessary. Typical 7#-acyl groups which may be removed are thienylacetyl, phenylacetyl, phenoxyacetyl, benzoyl and acetyl. The starting materials may have at the 3-position a methyl, hydroxymethyl, etherified hydroxymethyl, or acyloxymethyl group or a group derived from a nucleophile. Suitable imide-halide-forming agents are acid halides of phosphorus acids, e.g. phosphorus oxychloride or pentachloride. The reaction is preferably effected in an inert organic solvent in the presence of a base such as triethylamine, pyridine, dimethylaniline or calcium carbonate. Conversion to the imino ether is preferably by reacting with an alcohol, e.g. methanol, in the presence of a tertiary amine such as listed above. The imino-ether may be decomposed with water or an alkanol in the presence of an acidic or basic catalyst, e.g. hydrochloric, trifluoroacetic, toluenesulphonic, phosphoric or formic acids, or ammonia or salts of a weak acid with alkali- or alkaline earth-metals. The N-deacylated products are useful as intermediates for re-acylation by a different 7#-acylating group to give antibiotically active cephalosporin compounds.
Patent GB-334808-A (GB)
Title: Window guards
IPC: B24B15/08
Filed: 1929-12-16
Abstract: 334,808. Schauman, L. M., (Assignee of Schauman, K. 0.). Dec. 15, 1928, [Convention date]. Window gitards. - A guard for the opening between the sash and sill of a sliding window consists of one or more flexible strands of cable or the like 7 connected to the sill and passing over guides on the sash to a tensioning member 14 on the frame. The guides on the sash are preferably housed in a casing 11 and may consist of pulleys 10<a>, ... 10<c> for the cables extending to the sill, and 10<1>, 10<11> for guiding same to the tensioning member. The tensioning member 14 comprises a pulley 15 on a pivoted lever normally retained upright by a ring 18. The casing 11 is preferably secured to the sash by means of keyhole slots and pins &c. on the sash. A cover-plate 19 may be provided for the tensioning member on the frame.
Patent GB-338764-A (GB)
Title: Improvements in the manufacture and production of 2-aroyl-benzanthrones
IPC: C09B3/06
Filed: 1929-12-16
Abstract: 338,764. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 16, 1929. Addition to 319,593. Benzanthrone deriratives. - 2 - Aroylbenzanthrones are obtained by treating benzanthrones containing the group CH(R)CN in the 2-position R=aryl) described in the parent Specification, with oxidizing agents in the presence of organic diluents. According to examples. (1) the condensation product from benzanthrone and benzyl cyanide is oxidized in glacial acetic acid with sodium dichromate, to give 2-benzoylbenzanthrone ; (2) the product obtained by condensing benzanthrone with p-chlorbenzyl cyanide is oxidized as in (1) to give 2-p-chlorbenzoylbenzanthrone; (3) the initial material of example 1 is oxidized in acetone with potassium permanganate to give the same product.
Patent GB-1391888-A (GB)
Title: Spring balance having a device for compensating for measuring errors due to temperature variations
IPC: G01G3/18
Filed: 1973-08-15
Abstract: 1391888 Temperature compensated spring balance W KRAUT [trading as BIZERBAWERKE WILHELM KRAUT KG] 15 Aug 1973 [29 Aug 1972] 38559/73 Heading G1W In a temperature compensated spring balance, the movements of a bi-metallic strip 18 rigidly connected to the weighing lever 1 operates on an actuator lever 14 which adjusts the position of a knife edge 11 along the lever 1. A body 8 rigidly connected to the lever 14 carries the knife edge 11, and is pivotably connected to the lever 1 by a knife edge 9. Lever systems may be inserted between the knife edges 4, 11 and the load G and balance spring 13 respectively. A system of bi-metallic elements may replace the single element shown.
Patent GB-1061086-A (GB)
Title: Improvements in or relating to yarn winding machines
Inventor: HORWOOD JOHN MAURICE
IPC: B65H54/28
Filed: 1963-10-02
Abstract: 1,061,086. Traversing means for yarn winders. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 24, 1964 [Oct. 2, 1963], No. 38768/63. Heading D1J. The yarn traversing mechanism has at least two yarn guiding members, one traversing the yarn in one direction across the full width of the yarn package at constant speed and another to traverse the yarn in the opposite direction across the full width of the yarn package at constant speed, and means for causing the yarn to change from one guide member to the other at the end points of traverse. In Fig. 2 there are two endless chains 21, 22 rotating on opposite directions, each chain carrying a plurality of yarn guiding members 23, 23a, 23b and 24, 24a, 24b for traversing the yarn across a freely rotatable roller 36. The chains 21, 22 are so disposed over sprocket wheels arranged as shown that as the yarn is traversed from right to left by the yarn guide 24 on chain 22, the yarn guide 24 moves downwardly to a setting in which it releases the yarn. At this instant of release the yarn will be abutted by the yarn guide 23b on chain 21 and the yarn will then be traversed from left to right whilst the yarn guide 23b moves downwardly to a setting at which it releases the yarn, and so on. In Fig. 1, (not shown) the sprocket wheels are so arranged that the lower span of an endless chain 3 can traverse the yarn from right to left and the upper span of an endless chain 4 can traverse the yarn from left to right, there being stationary, inclined surfaces 15, 16 that cause the yarn to be transferred from the yarn guider on one chain to the yarn guider on the other chain at the point of reversal of the laying of the yarn. The chains and sprocket wheels in Figs. 1 and 2 may be replaced by grooved pulleys and rubber bands. The freely rotatable roller 36 is parallel to the axis of the yarn package and receives yarn from the yarn guiding member to (a) lay it directly on the yarn package or (b) lay it onto a driven roll that lays the yarn onto the yarn package. Pattern winding may be avoided by cyclically varying the speed of the motor driving the sprockets or grooved pulleys.
Patent GB-1262519-A (GB)
Title: An assembly comprising a rolling bearing and a spiral groove bearing and means for distributing axial thrust between the two bearings
IPC: F16C21/00
Filed: 1969-08-04
Abstract: 1,262,519. Bearings. SVENSKA KULLAGERFABRIKEN A.B. 4 Aug., 1969 [7 Aug., 1968], No. 38962/69. Heading F2A. A vertical shaft is provided with a device for distributing axial load between a rolling bearing and a spiral groove bearing depending on the speed of rotation of the shaft. The shaft is journalled radially in a housing by a roller bearing 11. A ball thrust bearing 9 and a spiral groove hydrodynamic fluid bearing 10 are provided to accept axial load. The spiral groove bearing has a plate secured to the shaft which engages with a plate 6 which is axially slidable in a cylinder in the housing. A valve 5 is provided which connects the space below the plate 6 with either a portion of the housing where atmospheric pressure reigns or with a part of the fluid bearing where high pressure occurs. On initial rotation of the shaft, the axial load is borne entirely by the ball bearing 9. When the rotational speed of the shaft exceeds a predetermined value, a suitable sensing device operates the valve 5 and connects the chamber below the valve with the bearing instead of the housing. The pressure developed in the bearing is transmitted to the chamber 7 and causes the plate 6 to rise, thereby relieving the ball bearing and causing the fluid bearing to carry all the axial load. As the speed of rotation of the shaft falls, the valve reconnects the chamber 7 with atmospheric pressure causing the plate 6 to be lowered thereby lowering the rotor on to the ball bearing 9. The axial movement of the plate 6 is limited by a stud 8 which has a spherical surface engaging with the plate, to permit self alignment of the plate. Springs 13 bias the plate 6 towards the shaft and also serve to conduct away the heat from the bearing. Cooling is further facilitated by the passage of cooling fluid 14.
Patent GB-942885-A (GB)
Title: Improvements in or relating to press tools
Inventor: GALWAY JOHN CHARLES
IPC: B21D37/10
Filed: 1961-10-31
Abstract: 942,885. Cupping. KEARNEY & TRECKER-C.V.A. Ltd. July 30, 1962 [Oct. 31, 1961], No. 39010/61. Heading B3Q. A press tool of the type having fluid controlled clamping means is characterised in that the fluid pressure means are mounted in or on a mounting part for a stripper which is held against movement relative to the female tool element during the forming stroke whereby the pressure is unaffected by the forming stroke. The press comprises a crosshead 10a to which is attached a number of punch elements 9, 9a, 9b and a stripper mounting plate 13, and a fixed bed plate 11 to which is attached the holders 14, 15 housing female dies 16. The punches 9 are slidable within a number of ring clamping and stripping members 17 slidably located in a bore 18 of the stripper plate 13, the upper end of which is closed by a sealing member 19 a cylindrical extension 21 of which projects into a recess of the member 17. The members disposed within the bore 18 are fitted with " 0 " rings 23 and the bore connected via passages 24 with pressurized oil supply pipes 25 which supply oil from the transformers 8, 8a, 8b. A number of holding members 26 fixed to the plate 13 engage shoulders on the members 17 and retain them within the bore 18 and spacing members attached to the plate 13 hold it in a fixed relationship to the die holders. A number of thrust rods 35 which abut the upper face of the plate 13 are actuated by a number of pneumatic cylinders 36 mounted above the crosshead which urge the plate 13 into contact with the projections 33 of the claws 32 mounted on the crosshead. The transformrs 8, 8a, 8b are of a known type of hydraulic/pneumatic intensifier and supply oil to the bores 18 of the punch clamp and stripper assemblies 9, 9a, 9b respectively. The press is arranged to form 4 cupped shaped articles simultaneously in 3 successive operations, the punches being arranged in staggered relationship and the press fed in the direction of rows 9, 9a, 9b.
Patent GB-922479-A (GB)
Title: Photographic silver salt diffusion transfer procedure
IPC: G03C8/24
Filed: 1960-11-14
Abstract: 1-Methyl-2-mercapto- 4-oxo-6-methylamino-1,3,5-triazine is prepared by refluxing methyl thiourea, carbonic acid diethyl ester and sodium in amyl alcohol, cooling the reaction mixture, acidifying, suction-filtering the precipitate, washing it with water and recrystallising from alcohol.
Patent GB-1062736-A (GB)
Title: Improvements relating to control rectifier circuits
Inventor: KING KENNETH GORDON
IPC: H03K17/73
Filed: 1964-09-28
Abstract: 1,062,736. S.C.R. switching circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Aug. 10, 1965 [Sept. 28, 1964], No. 39363/64. Heading H3T. [Also in Division H2] In a controlled rectifier circuit wherein a commutating capacitor C in series with a switching device S is connected in parallel with a controlled rectifier SCR, so that operation of the switch discharges the capacitor to shut off the rectifier, a blocking means-as shown a saturable reactor SR-is included in series with the rectifier in order to delay the subsequent application of forward voltage to the rectifier and hence give a longer time for shutting off. The capacitor is initially negatively charged as shown. When the switch S is closed at t, the capacitor discharges and the flux in the saturable reactor (previously set by the load current i) is reversed. When the capacitor starts to become positively charged this positive voltage appears across the unsaturated reactor SR and is not applied to the rectifier SCR until the reactor SR is again forwardly saturated at time t 3 . Thus the total turn-off time available for the rectifier is t 1  to t 3 . This is ideally twice the time available in the absence of the saturable reactor. The ideal time is not quite met in practice since (a) there is significant magnetizing current for the saturable reactor; (b) the sudden saturation of the core causes a high rate of voltage rise on the rectifier; (c) the turn-off time is modified by the presence of the saturable reactor. To overcome the effect of (a) a reverse diode may shunt the rectifier (Fig. 3, not shown), and a source of negative voltage may be connected in series with the rectifier. Other methods include a current absorbing resistor and a bias winding on the saturable reactor. A D.C. chopper is disclosed (Fig. 4, not shown) which incorporates a further controlled rectifier as the switch S, a reverse diode across the main rectifier and a divided saturable reactor to provide biasing. Inverting circuits are also contemplated.
Patent GB-1159447-A (GB)
Title: Piezoelectric Charing Device
Inventor: MUKHIN GEORGY ILICH
IPC: F23Q3/00
Filed: 1967-08-29
Abstract: 1,159,447. Piezo - electric generators. SOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT PRIBOROSTROENIA. 29 Aug., 1967, No. 39434/67. Heading H2A. A piezo-electric dosimeter charger consists of a series of axially - loaded elements 2 having metallized ends abutting conducting washers 4 having spring-arms 5 making contact with the casing and with the output terminal 6 to connect the elements in parallel. Pressure is applied at bush 10 from a device, not shown. A pocket-clip 11 is provided.
Patent GB-1163442-A (GB)
Title: Pyrolytic Graphite Structures
IPC: C01B31/30
Filed: 1966-09-02
Abstract: 1,163,442. Coating with graphite. SCOTT PAPER CO. Sept. 2, 1966 [sept. 7, 1965], No. 39450/66. Heading C7F. [Also in Division C1] Pyrolytic graphite is deposited on to a porous structure which either (a) has a plurality of parallel open ended cells, or (b) is a reticulated network structure. Honeycomb structures of type (a) may be moulded from resin-bonded fibreglass, paper, or metal or from non-foamed polyurethane. The preferred type (b) structure is polyurethane foam. When the basic structure is at least partially organic, it is first coated with a metal or thermosetting resin, and is pyrdyzed before or during graphite deposition. The metal may be Ag, Cu, Ni, Cr or Fe and is applied by electro-plating or vapour deposition. The resin may be applied by immersing the base in the liquid resin or in a solution or suspension of the resin and drying, or by wetting the surface of the base e.g. with water Œ binding agent, optionally allowing the surface to dry, and then dusting with powdered resin. The resin may also contain colloidal graphite, SiO 2 , Al 2 O 3 , ZrO 2 , TiO 2 , Ta, Al, Ti, Zr, steel, or Cu. The coated base is then heated to 200-500‹F, to fuse and cure the resin, and may then be heated to 500-1000‹F, to decompose the base. Numerous resins are specified. Alternatively, a base material, e.g. fibreglass, may first be coated with resin, and then formed into a honeycomb structure. Graphite is deposited at 2600-3650‹F. and 0‹2-70 cm Hg from gaseous methane, ethane, acetylene, or benzene, and may completely fill the pores of the structure. The final structure may be isotropic when the basic structure is an isotropic network, or may be anisotropic when the strands of material forming the basic network are concentrated in one direction, or when type (a) structures are used. The interior may be almost hollow.
Patent GB-1456042-A (GB)
Title: Record players
IPC: G11B3/08
Filed: 1973-08-21
Abstract: 1456042 Pick-up arm control PLESSEY CO Ltd 20 Aug 1974 [21 Aug 1973] 39452/73 Heading G5R The thermal expansion of a member is used directly to raise or rotate a gramophone pick-up arm or to initiate such movement of the arm. Wire 106 heated by current applied at terminals 108 expands to allow spring 107 to pivot member 114 clockwise to raise the pick-up arm 101. In addition the expansion of wire 109, when current is applied at terminals 112, 113, produces rotation of drum 110 as spring 111 takes up the expansion, and this rotation produces rotation of the pick-up arm. Alternatively the movement produced by the heating of a bimetallic strip at the end of record play can be used to initiate the usual cam rotation for automatically moving a pickup arm.
Patent GB-345629-A (GB)
Title: Improvements in installations for carrying out strongly endothermic reactions
IPC: C22B5/00
Filed: 1929-12-24
Abstract: <PICT:0345629/III/1> A reaction chamber for conducting endothermic processes is surrounded by a combustion chamber, preferably a gas producer, and is further heated by means of a gas which passes through the combustion chamber, then through passages situated between the combustion chamber and the reaction chamber, and finally through the reaction chamber.  The gas may or may not take part in the reaction.  Fig. 2 shows an embodiment of the invention suitable for the manufacture of sodium cyanide by reaction between sodium carbonate, carbon, and nitrogen.  The reaction chamber 2 is arranged in the centre of a gas producer 1 and has passages 17 in its walls communicating at 18 with the producer and at 19 with the interior of the retort.  The solid raw materials are fed to the retort by a distributer 6 and the reaction products are removed by crushing cylinders 7 and conveyer 8.  During the blowing period the producer is supplied with air through the tuyeres 9 and also through the inlets 16.  The gas produced is withdrawn at 23 and undergoes heat-exchange with the incoming air. When the maximum temperature is reached the air is shut off and nitrogen is supplied to the inlets 16.  The valve 22 is closed diverting the nitrogen through the reaction chamber 2.  Another modification of the invention is designed for carrying out the reduction of zinc oxide.  In this case no nitrogen supply is required; the producer gas itself is diverted through the retort when the producer has been brought to normal working condition, and the process is then continuous.  The metallic vapour is carried away by the gas and collected in condensers and a dust-precipitator.
Patent GB-979856-A (GB)
Title: Improvements in or relating to gramophone pick-ups
IPC: H04R1/16
Filed: 1959-11-20
Abstract: 979, 856. Gramophone styli; interchangeable mountings. J. WALTON. Feb. 20, 1961 [Nov. 20, 1959], No. 39552/59. Heading G5R. [Also in Division H4] A stylus 21 is flexibly gripped in a holder 42 of moulded polyethylene whereby the stylus 21 is par - tially decoupled from the stylus holder 42. The holder 42 has a head 44 which is flexibly and removably gripped in a mating socket at the end of an arm 20 of polyvinyl chloride. Specifications 979,857, 979,858, 979,859 and 979,860 are referred to.
Patent GB-1185296-A (GB)
Title: Improvements in or relating to Electric Circuit Arrangements
IPC: H04Q3/00
Filed: 1968-08-19
Abstract: 1,185,296. Automatic exchange systems. SIEMENS A.G. 19 Aug., 1968 [21 Aug., 1967], No. 39558/68. Heading H4K. An electric circuit arrangement for a telephone system includes a current responsive device, such as a relay, in series with a rectifier and an inductive device connected across said current responsive device and rectifier so that when a D.C. supply is connected to the circuit current flows in the inductive device and when the supply is broken a self-induced voltage derived from the inductive device renders the rectifier conductive and the current responsive device is operated. The figure shows speech wires 1, 2 with relay contacts lha, lhb, 2ka, 2kb of a multi-stage switching arrangement therein. When a source U is connected to wires 1, 2 current flows through the closed contacts, rectifiers 11, 21 and inductors L1, L2, but the coils RKA and RKB of the relays controlling the contacts are not energized. When the connection of the voltage source U is broken the induced voltages of the inductor terminals energize relay coils RKA and RKB to open the contacts.
Patent GB-1351784-A (GB)
Title: Hydrazine fuel cell
IPC: H01M8/22
Filed: 1971-08-24
Abstract: 1351784 Hydrazine fuel cell MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 Aug 1971 [2 Sept 1970 (2) 4 Sept 1970 6 Oct 1970] 39744/71 Heading H1B A fuel cell container 3 is divided into compartments 4, 5 by a fuel electrode 2, the hydrazine fuel dissolved in KOH electrolyte being supplied to the compartment 5, permeating the electrode 2 and entering the compartment 4. One side of the compartment 4 is formed by air electrode 1 and the side of the electrode 2 facing the compartment 5 is provided with a porous film 6 which is inactive to the fuel and is electrolyte resistant. The film 6 reduces the concentration of fuel which reaches the electrode 2 and compartment 4 and enables a high fuel concentration to be supplied with the electrolyte to the compartment 5. Preferably, the film 6 comprises an oxide powder mixed with a fluoropolymer binder, the oxide being selected from the group consisting of the oxides of nickel, aluminium, iron, magnesium and graphite. In a modification, the film 6 as described above is covered by a further film of fluoropolymer resin. In another embodiment the film 6 consists of vinyl chloride resin. The air electrode 1 comprises a sintered nickel powder including carbon and a nickel screen and has silver added as catalyst. Water-proofing property is provided by impregnating the electrode with PTFE. The side of the electrode facing the air is given a porous resin film and the side facing the chamber 4 has a film comprising a mixture of nickel oxide and resin. The fuel electrode 2 comprises a sintered nickel powder and includes a nickel screen and is impregnated with a Cu-Ni catalyst.
Patent GB-1036109-A (GB)
Title: Automatic electric washing machines
Inventor: BARNISH PHILIP
IPC: D06F34/08
Filed: 1961-11-07
Abstract: In a timer-controlled tumble-action washing machine, the basket is rotated continuously and the washing liquid heated until the temperature of the liquid reaches a value above which foam produced by the continuous rotation impairs the washing action after which the basket motor is alternately energized and de-energized by switching means to prevent excessive foaming. The switching means is a bimetallic member, having a heater in parallel with the basket motor, in the particular embodiment, but may alternatively be a motor-driven switch.  During washing the liquid is heated to 195 DEG F., motor operation being intermittent until 140 DEG F. is reached, then continuous for 12 minutes (taking the temperature to about 160 DEG F), then intermittent.  During intermittent operation, the basket rotation may be unidirectional or bidirectional.