baber/WOPTO huggingface dataset:
Patent GB-706215-A (GB)
Title: Improvements in the preparation of bis-choline esters of dicarboxylic acids and their derivatives
IPC: C07C69/34
Filed: 1951-07-27
Abstract: Dicarboxylic acid bis-choline esters and derivatives of the formula: [R1(CH3)2-N-CH2-CH2-O-OC-(CH2) #c CO-O-CH2-CH2-N(CH3) 2-R1++2R2-wherein R1 is a lower alkyl radical, i.e. of not more than 4 carbon atoms, R2 is Cl, Br or O-SO3-CH3, and #c is an integer greater than 1, preferably 2 to 8, are prepared by conversion of b -halogenoesters: Hal-CH2-CH2-O-OC - (CH2)#c CO-O-CH2-CH2-Hal with dimethylamine in the presence of indifferent solvents, preferably benzene or toluene, to the b -dimethylamino-ethyl esters, and subsequent quaternization with a lower alkyl chloride or bromide or dimethyl sulphate.  To obtain a pure succinic acid bis (b -dimethylaminoethyl) ester, succinic acid bis (b -bromethyl) or, preferably (b -iodoethyl) ester is reacted with dimethylamine at low, e.g. room temperature.  The quaternization is also effected at room temperature.  When preparing bis-dimethylaminoethyl esters of dicarboxylic acids with more than 3, e.g. 4-8 CH2 groups, such as adipic or sebacic acid, the chlorethyl esters may be used as starting materials.  The dihydrate of succinic acid bis-choline esters is readily crystallized.  The products are muscular relaxants.  In examples: (1) succinic acid bis (b -chlorethyl) ester is converted to the corresponding iodo compound by heating with NaI in acetone, and is allowed to stand with dimethylamine in benzene, and the bis (b -dimethylaminoethyl) ester recovered.  This on standing with CH3Cl in acetone yields the dichloride of succinic acid bis-choline ester which may be recovered, and purified by solution in water and precipitation with alcohol as the dihydrate.  The anhydrous chloride is obtained by heating at, e.g. 135 DEG C., under vacuum.  The dibromide is formed using CH3 Br in acetone, and alcohol, while (CH3)2 SO4 in acetone yields the di (methosulphate); (2) adipic acid bis (b -chlorethyl) ester is heated with dimethylamine in benzene under pressure, first at 80 then at 120 DEG C., and adipic acid bis (b -dimethylaminoethyl) ester recovered.  This is quaternized using CH3Cl, CH3Br or C2H5B in acetone at room temperature; (3) sebacic acid bis-choline ester is made in analogous manner.
Patent GB-1432229-A (GB)
Title: Surface waterstops
IPC: E04B1/68
Filed: 1973-04-13
Abstract: 1432229 Waterstops SCHLEGEL (UK) Ltd 16 April 1974 [13 April 1973] 17892/73 Heading E1B A surface waterstop has at least one keying formation 4 on either side of the centre line 22 of the strip, and has its edges 16 adapted to receive fixing pins 28 or clips 20 or 21 extending at an acute angle to the plane of the strip. The centre of the strip is shaped to receive stop end shuttering and the web has formations 7 which allow expansion.
Patent GB-522936-A (GB)
Title: Improvements relating to collapsible tubes for toothpaste, shaving soap, and like contents
IPC: B65D35/32
Filed: 1939-06-20
Abstract: 522,936. Collapsable tubes. WYLIE, W. M. June 20, 1939, No. 17931. [Class 66] The screw cap closing the delivery noddle of a collapsable tube is adapted to be engaged with means provided at the closed end, for the purpose of rolling up the tube In the construction shown the upper surface of the cap 7 is formed with a slot 9 adaptec to engage the projecting end 6 of a U-shaped end closure 2 In alternative construction the slot 9 may be provided on the inside of the cap, a strip or bar may be sub stituted for the part 2, or the cap may be provided with a hook adapted to be engaged in one or more aperture provided in the projecting end 6.
Patent GB-1384911-A (GB)
Title: Flyer assembly
IPC: D07B7/10
Filed: 1972-04-18
Abstract: 1384911 Rope twisting WARNER & SWASEY CO 18 April 1972 [6 May 1971] 17980/72 Heading D1T In a strand twister 24, Fig. 1, support 54 is rotated about axis 46 to twist strand fed along the axis and over guide roller 74 and capstans 40, 42 mounted on and rotating with the support. The twisted strand 20 is passed to flyer arm 50, rotating with the support, to be wound on spool 30. Motor 32 rotates the spool which rotates the support via strand 20 and the arm. Capstan 40 is rotated relative to the support by the rotation of the support. To twist strand in one direction, Fig. 2, the strand is fed in groove 86 of the freely rotatable roller 74 to capstan 42, is wound anti-clockwise about capstans 42, 40, and is fed via passage 60 to arm 50. Roller 74 is carried by arm 94 on member 90 which rotates with support 54 about axis 46. Member 90 is also swingable relative to member 54 about axis 46 so that, to twist the strand in the opposite direction, the roller 74 may be swung to the dashed-line position shown in Fig. 2. The strand is then wound clockwise about the capstans and fed through passage 62. To prevent broken strand from whipping, a rubber-tyred, freely-rotatable roller 112 mounted on support 54 is pressed against a portion of the strand running in a groove in capstan 40. Roller 112 is adjustable radially of capstan 40 by eccentric adjuster 120. A second, adjustable roller may be mounted on the opposite side of the capstan.
Patent GB-613276-A (GB)
Title: Improved process for the production of substantially pure dehydrocholic acid
IPC: C07J75/00
Filed: 1946-06-14
Abstract: Dehydrocholic acid is isolated from a mixture containing a substantial proportion of the same by dissolving in a tertiary aliphatic alcohol, e.g. amyl or butyl alcohol, at a temperature in the neighbourhood of the boiling point of the alcohol, separating the hot solution from any undissolved materials, lowering the temperature of the solution to crystallise therefrom the dehydrocholic acid, and separating the crystallised precipitate from the solution.  Detailed examples are given.
Patent GB-924424-A (GB)
Title: Dispersions
Inventor: BOWYER WALTER
IPC: C08F2/16
Filed: 1960-05-23
Abstract: Aqueous dispersions of polymerized ethylenic monomers are obtained by adding the monomer to an aqueous medium containing a persulphate salt at a rate which is approximately equal to its rate of polymerization, the amount of persulphate at the start of polymerization being not less than 0,2% of the total monomer employed and the aqueous medium being free from water-soluble emulsifiers.  Monomers specified are acrylic and methacrylic esters, styrene, vinyl toluene, vinyl and vinylidene halides, butadiene and isoprene.  Also present during the polymerization may be a polysiloxane liquid, e.g. phenyl polysiloxane and hexamethyl disiloxane, which permit more rapid addition of monomer.  The examples describe the application of the above process to: (1) ethyl acrylate; (2) a mixture of methyl methacrylate and acrylonitrile; (3) a mixture of methyl and ethyl acrylates; (4) a mixture of methyl acrylate and methacrylate; and (5) beta-ethoxyethyl methacrylate.
Patent GB-458451-A (GB)
Title: Method and electrically heated apparatus for use in washing, rinsing and drying dishes, glasses, crockery and the like
IPC: A47L15/10
Filed: 1935-06-25
Abstract: 458,451. Heating liquids. SEMAN, O. M., 46, Nightingale Lane, Balham, London. June 25, 1935, Nos. 18140 and 27915. [Class 64 (i)] [See also Groups XXIII and VIII] In an apparatus for use in washing crockery, laundry, and the like, hot air is supplied to the washing liquid through a device which comprises a tube provided along its length with a plurality of injector devices. Each injector consists of a nozzle 10, Fig. 3, mounted on the tube 9 and projecting into a Venturi tube 11 so that when air is passed through the nozzle a stream, consisting of a mixture of air and water is produced in the liquid. The Venturi tubes are supported by wires 12. As shown in Fig. 4, the device is mounted in a tank 1 fitted with a plate rack 20 and air is supplied from an air compressor 5, a heater being provided whereby the air is heated to about 300‹ F.
Patent GB-1130940-A (GB)
Title: Improvements relating to the surface inspection of rolled stock
IPC: G01N27/83
Filed: 1967-04-20
Abstract: 1,130,940. Roller conveyers. SCHLOEMANN A.G. 20 April, 1967 [30 April, 1966], No. 18189/67. Heading B8A. [Also in Division G1] Steel billets arriving at an inspection station are retarded so that they are brought into endwise contact with one another as they pass through the inspection station and are then accelerated after leaving the inspection station. V-profile drive rollers 3a at the input end of the inspection station are driven at a slower speed than feed rollers 1 and rollers 13a at the output end of the inspection station are driven with a soft torque at a slower speed than rollers 3a. Delivery table rollers 14 are driven with a peripheral speed greater than the speed of transit of the billets through the inspection station. Three pairs of guiding rollers 15, 16, 17 are provided. Rollers 18 can move up and down to suit bent billets. All the rollers are of V-shaped profile.
Patent GB-844399-A (GB)
Title: Inductance coil
IPC: H01F21/06
Filed: 1957-06-07
Abstract: 844,399. Inductors. STANDARD TELEPHONES & CABLES Ltd. June 7, 1957 [June 9, 1956], No. 18243/57. Class 38 (2). [Also in Group XXXVI] An inductor has a magnetic core comprising a flanged bobbin 1, an enclosing sleeve 2 and a rod 3 of material of different permeability movable in the bore of the bobbin. A winding on the bobbin has leads which pass through notches in one flange Several inductors may be associated with capacitances to form a filter circuit unit which may be cast in resin.
Patent GB-765699-A (GB)
Title: Improvements in interlocking mechanism for enclosed electric switches
IPC: H01H21/06
Filed: 1954-06-23
Abstract: 765,699. Switch covers. CRABTREE & CO., Ltd., J. A., and MIDDLETON, E. June 17, 1955 [June 23, 1954], No. 18371/54. Class 38(5) In an electric switch of the type in which the cover cannot be removed unless the switch is "off," a bracket 1 having a slot 1d is fixed to a cover 3 over a sleeve 10 which is secured by a pin 9 to a spindle to which is attached an operating handle 6. The sleeve 10 is formed with slots 10a which engage a transverse pin 11 fixed to a switch spindle 12. The cover can only be removed when the pin 11 and the slot 1d are in line. The pin 9 abuts projections lb, 1c on the bracket in the "on" and "off" positions. Specification 719,811 is referred to.
Patent GB-121993-A (GB)
Title: Proportional Weighing and Delivering Apparatus for Charging Cupolas or the like uses.
IPC: F27B1/20
Filed: 1917-12-12
Abstract: 121,993. Hartley, J. W., and Avery, W. & T. Dec. 12, 1917. Compound-lever and like apparatus. - In a weighing-apparatus, more particularly for charging cupola furnaces, two skips are carried by weighing levers which are so proportioned and connected that when balance is attained the skips contain material in the desired proportion for the charge. The weighing-levers 15, 16 are suspended by links 13, 14 from a bar 12 having swivelling connexions with horizontally-swinging crane arms 9, 10, and are connected by a link 17 movable along the levers by screw adjustments. The movements of the lever 15 actuate through a link 26 a weight-indicating device 28. In operation a desired weight of one of the materials for the charge is fed into the skip 22, and the required quantity to restore the balance is then fed into the other skip 24. The crane arms 9, 10 are so arranged that, when one skip is in position to deliver through the charging opening 3, the other is in charge receiving position. An alarm or other signal may be given when a determined quantity of material has been fed to the first skip, and again when balance has been restored. The links 13, 14 may be adjusted along the bar 12, and provision may be made for corresponding movements of the fulcra of the two levers.
Patent GB-851478-A (GB)
Title: Improvements in or relating to means for recording transient phenomena
IPC: G01R13/04
Filed: 1956-06-14
Abstract: 851,478. Electric copying machines. HARRISON REPRODUCTION EQUIPMENT CO., and FIRTH, R. Aug. 7, 1957 [June 14, 1956], No. 18477/56. Class 38 (6). [Also in Groups XIX and XL (b)] Apparatus for recording coded information related to a transient phenomenon comprises a scale 5 having a plurality of opaque and transparent areas arranged in adjacent columns to afford rows extending transversely each row having the areas therein positioned along the row in a particular sequence that is characteristic of a particular range of magnitudes, the successive rows in the direction of the columns representing a progressive increase in the magnitude, and further comprises a lamp 1, mirror 3 and slit 10 for projecting an image of a selected row of the scale on to photographic material 11 which can be moved to receive a succession of selected images, each image received resulting in the formation on the carrier of a plurality of areas of two different kinds arranged in a sequence corresponding to the. sequence of the corresponding row of the scale, the mirror 3 being controlled by a galvanometer 4 to select an image representative of the value of the phenomenon measured by the galvanometer. A plate 2, carrying the scale 5, also carries a transparent area 7 which gives an image 13 on the carrier of variable width representing the value of the measured phenomenon in co-ordinate form. Time graduations may be applied by flashing a lamp at regular intervals. In place of a mirror and rectangular scale, an annular scale coded in arcuate columns and radial rows may be attached to the instrument spindle direct, Fig. 3 (not shown). Instead of examining the developed record, Fig. 2, visually, electronic equipment with photoelectric scanning (see Group XL (b)) can be used to differentiate and count the respective light and dark areas in order to decipher the recorded information. The output can be supplied to a visual presentation device; a card or tapepunching device; to a computing or measuring system or it can be used to control a machine directly and automatically. The coded scales could be attached to machine tools or other moving parts instead of to instruments so that movements thereof could be recorded and the records subsequently used to control similar tools or parts.
Patent GB-166139-A (GB)
Title: Improvements in safety control means for four-cycle gas engines
IPC: F01L1/00
Filed: 1920-07-09
Abstract: 166,139. Schmitz, H. Nov. 11, 1913, [Convention date]. Regulating.-To prevent explosions occurring in the supply passages of four-stroke-cycle engines using compressed air for scavenging and supplementing the normal charge, owing e.g. to the failure of the compressed-air supply, means are provided for closing the air-supply pipe when the speed of the engine falls to a predetermined limit. According to the construction shown in the Figure, an auxiliary governor g coutrols a hydraulic relay connected to a throttle valve o in a compressed-air supply pipe p. The governor is connected by an arm i to a valve x controlling the supply of water to the ends of a cylinder in which slides a piston n connected to the throttle valve o. The arm i also controls a switch m for cutting out the ignition when the speed exceeds a given value, such as might occur in the event of the failure of the main governor.
Patent GB-634739-A (GB)
Title: Improvements in or relating to electrical precipitators
IPC: B03C3/86
Filed: 1947-07-14
Abstract: 634,739. Electrostatic precipitation. RESEARCH CORPORATION. July 14, 1947, No. 18641. Convention date, Aug. 27, 1946. [Class 39 (i)] In an electrostatic precipitation, the precipitation electrodes comprise a unitary assembly of longitudinallyextending conduits supported in a structure from which it is removable at one end, and a plurality of high tension electrodes extend within the conduits from a support at the opposite end of the structure. The unitary assembly has a hollow rectangular outer shell 17, Fig. 4, and a plurality of interlocking partitions 18 dividing the interior of the shell into a plurality of longitudinal conduits. The partitions interlock egg-box fashion. A plurality of such unitary assemblies are inserted into an'open framework 14 comprising a plurality of compartments, each receiving one unit. The framework 14 is supported in the casing 13 of a two-stage precipitator where it may provide the charging stage 10, or the precipitation stage 11. High tension electrodes 21 for stage 10 are carried by a lattice 23, and high-tension electrodes 27 for stage 11 are carried by a lattice 22, the lattices being mounted-on insulators carried by the frameworks 14. The sheet electrodes formed by the shell 17, Fig. 4, and interior partitions 18 may comprise cardboard or corrugated paperboard, in which the corrugations extending transversely to the flow of gas act as catchpockets. The conductivity of the cardboard or paper may be increased by wetting with liquid, such as aqueous solutions of calcium chloride, lithium chloride or zinc chloride, or triethylene glycol with or without a wetting agent or the sheets may be impregnated with metallic fibres, carbon powder or graphite, or coated with carbon, graphite or metal powder or metal foil.
Patent GB-238364-A (GB)
Title: Improvements relating to direction indicators for vehicles
IPC: B60Q1/34
Filed: 1924-08-06
Abstract: 238,364. Mackenzie, W. R. Aug. 6, 1924. Semaphore and pointer signals; road-traffic signals on vehicles.-A vehicle direction indicator of the type in which an indicator arm can be swung transversely and in the direction of travel of the vehicle comprises an indicator arm &c. 2 pivotally mounted at 4b on a spring-controlled tube 4, rotatable by a handgrip 4<c> in a fixed casing or outer tube 1, and connected by a link 9 to a rod 10 slidable in the tube 4. The tube 1 is passed through a hole in the front screen or dash of a motor vehicle, or mounted in the front of a vehicle, within reach of the driver. To move the arm 2 to the right or left, the driver first pulls the grip 4<c> inwards. moving the tube 4 against the action of a spring 7 and freeing a projection 4a from a notch in the outer tube 1, whereupon the tube 4 may be turned in the desired direction. To indicate that a following vehicle may move ahead, the driver reciprocates the rod 10 by pulling a handle 10<a> thereon against the action of a spring 11, so that the arm 2 is turned about the pivot 4b, and this action may take place with the arm in any of its transverse positions.
Patent GB-649246-A (GB)
Title: Improvements in or relating to display devices
IPC: G09F13/12
Filed: 1949-07-15
Abstract: 649,246. Changing signs. NEALE, J. July 15, 1949, No. 18701. [Class 3(i)] In a display device of the " Peppers Ghost " type in which a shield 8 rotates round a source of light 7 so that twc articles 4 and 5 arranged respectively on each side of a transparent mirror 2 are alternately illuminated, means are provided to vary the relation between the periods of illumination and non-illumination. To do this shields of different widths are used. The shield 8 is mounted by means of a pin and slot connection 32, Fig. 3 between two discs 25, 26 one of which 26 is axially slidable against the pressure of a spring 33 so that the shield can be changed. The shield is rotated round the lamp 7 by an electric motor 27 which drives a gear-wheel 23 integral with the disc 25. Translucent screens 9, 10 are interposed between the lamp and the objects 4, 5. The object 5 is supported on a transparent pane 6.
Patent GB-689479-A (GB)
Title: Improvements in or relating to retractable tubular structures, such as, for example,aerials
IPC: H01Q1/10
Filed: 1950-07-27
Abstract: 689,479. Aerials.- SMITH & SONS (RADIOMOBILE), Ltd., S., and HAWKINS, H. W. July 27, 1951 [July 27, 1950], No. 18762/50. Class 40 (vii).  A rod or mast aerial of adjustable length comprises a housing containing a rotatable drum on which is wound a length of metal strip. The strip being such that When unstressed it assumes a substantially tubular form while taking the form of a flat strip when wound upon the drum, so that upon withdrawal from the drum through an aperture in the housing it forms a rigid self-supporting structure. In the arrangement illustrated the aerial comprises two strip members 2, 6 the former enveloping the latter when extended as shown in section by Fig. 3. Strip 2 is wound upon drum 3 which is driven by a hand wheel while strip 6 is wound upon drum 8 which is spring-loaded to make retraction of the aerial easier. The strips are joined together at 17 by brazing to a termination 18. Spring-urged members 19, 21 bear against the strip wound upon drum 3 and member 21 is connected electrically to a terminal 23. A felt washer 15 seals the housing against ingress of dirt and moisture.
Patent GB-1360489-A (GB)
Title: Sealed lubricating system module
IPC: F01D25/18
Filed: 1971-06-03
Abstract: 1360489 Lubricating WEIR PUMPS Ltd 24 May 1972 [3 June 1971] 18804/71 Heading F2A The bearings of a vertical shaft, e.g. of a shaft connecting two rotodynamic machines are lubricated by being enclosed in a vessel 6 having upper and lower compartments 8, 9 which contain bearing there being ducting connecting the compartments, and a lubricant circulator whose inlet communicates with the lower compartment and whose outlets communicate with the bearings, the arrangement being such that lubricant flows from the lower compartment through the bearings into the compartments and overflows from the upper compartment into the lower compartment. Each compartment contains a journal bearing 16A, 23 which is surrounded by a wall 16, 20 in one end of which is provided an aperture 38, 39, to allow lubricant to return to the compartment. Lubricant is circulated by means of a pump comprising a rotor 27 attached to the shaft rotating in the lower compartment. Lubricant passes from the lower compartment through a hole 28 in the wall surrounding the rotor and is pumped via a duct 32 to an oil cooler 30 and thence via ducts 34, 35 to the upper and lower bearings. Lubricant overflowing from the upper bearing passes over a weir 43 which maintains the level of oil in the upper bearing, and flows into the lower compartment so that it may be recirculated by the pump. Some oil may be pumped by the rotor through a filter 50 from which it returns to the lower compartment. A safety valve 51 may be provided in the lubricating system. A non- return valve 52 may be provided in the duct supplying the upper bearing so as to prevent lubricant draining from the upper compartment on cessation of the operation of the pump. An alternative arrangement for preventing loss of lubricant from the upper compartment is described (Fig. 6, not shown), in which lubricant is conveyed via syphon tubes (53) to the upper compartment, the tubes being provided with valves (55) which, on reduction in pressure due to the cessation of the pump, open to break the syphon. The lower compartment may contain a thrust bearing 25 for the shaft which is also supplied with lubricant from the pump, and which is surrounded by a wall having an opening at its upper end to allow lubricant to overflow into the ; lower compartment, while maintaining the bearing in lubricant.
Patent GB-790700-A (GB)
Title: Metal spray gun
IPC: B05B7/22
Filed: 1955-06-29
Abstract: 790,700. Spraying metal. SCHONBERG, A., KELLINGHUSEN, W., WITTHOEFFT, F. H., WITTHOEFFT, G., and TROJE, H. J. L., BARTELS-, [trading as MEYER, A. O.]. June 29, 1955 [Nov. 6, 1954], No. 18815/55. Class 69 (3). In a spray gun of the kind in which two current carrying metal wires are continuously short-circuited so that their ends melt and the melted metal is atomized and sprayed by compressed air, the surfaces of the gun housing exposed to heat radiation from the electric arc are constructed as heat reflection surfaces which are cooled by at least a part of the compressed air current. Each part 1 of the housing through which a metal wire is fed and guided by a nozzle, not shown, has an aperture 7 for the wire and is covered with an aluminium foil 3. A cover 4 is secured to the front of the housing with the interposition of an asbestos packing 5, and compressed air for cooling the gun housing surfaces is supplied to the cover at 6. A screen 8 is attached to the front of the cover with the interposition of an asbestos or fibre packing 9. The parts 3, 5, and 9 are perforated for the passage of a wire.