baber/WOPTO huggingface dataset:
Patent GB-694234-A (GB)
Title: A working model typewriter keyboard for practising
IPC: G09B13/02
Filed: 1949-09-24
Abstract: 694,234. Typewriters. HARDWICK, H. Sept. 6, 1950 [Sept. 24, 1949], No. 24569/49. Class 100(iv) Dummy key-boards. -A key-board for practising comprises a frame or box 3 rectangular in plan and having a sloping top 4 through which extend keys 1 attached to springs 2 fixed to the underside of the top. The box may be made of metal or plastic materials and the springs made from wire and formed with loops at their ends for screws or rivets 5 to fix them to the box. A space key 6 is fixed by two springs, one towards each end.
Patent GB-1398503-A (GB)
Title: Pneumatic sonic activator for pulverulent granulated or  viscous material
IPC: B65D88/66
Filed: 1973-05-23
Abstract: 1398503 Discharging hoppers/pneumatic conveyers KOCKUMS MEKANISKA VERKSTADS AB 23 May 1973 [26 May 1972] 24593/73 Headings B8S and B8A Sound frequency modulated air is blown into a hopper 10 to fluidize the material therein by sound transmitters 18 housing in chambers 16 which communicate with the hopper through air permeable walls 20, 21, each chamber 16 being connected to atmosphere through an outlet 22 provided with a valve 23 operated so as to close the outlet when the respective transmitter is operative and open the outlet when the transmitter is inoperative.
Patent GB-923141-A (GB)
Title: Flexible couplings
IPC: F16D3/79
Filed: 1958-07-31
Abstract: 923,141. Universal joints. J. C. GREY. July 17, 1959 [July 31, 1958], No. 24622/58. Classes 80 (2) and 80 (3). A flexible coupling comprises resilient metal links 4 pivoted to components 1, 2 at points spaced around a circle coaxial with the components. The links may be laminated, and may increase in thickness at their extremities, where they are mounted on pivot pins 5, by means of laminµ 4<SP>1</SP> of successively decreasing length. A disc 6 having apertures closely fitting the driving pins 5 and loosely surrounding the driven pins 5 may be provided to take up the drive in the event of failure of the links 4.
Patent GB-224349-A (GB)
Title: Improvements in or relating to corsets
IPC: A41C1/10
Filed: 1923-10-04
Abstract: 224,349. Chappell, Allen, & Co., Ltd., and Gordon, J. W. Oct. 4, 1923. Corsets.-A corset comprises a shaped front part a of such a depth as only to enclose the abdomen, and a back part b of normal length and provided with forwardly-extending side-flaps c for the attachment of suspenders. The parts a and b are adjustably attached at the sides, in the form illustrated, by lacing d arranged between the eyeleted rear edges of the part a and eyeleted strips e attached to the back part b. The front part is formed of four parts 1, 1, 2, 2 shaped and joined to produce a concave-convex formation and is attached to the strips e by a protective web underlying the lacing. One side of the front part is provided with an opening closed by hook and eye fastenings i, and laced openings a<2> in its lower edge to permit of adjustment. Stiffening steels b<1> may be employed in the strips e and at the edges of the part a, and also in the back part b.
Patent GB-537005-A (GB)
Title: Improvements in or relating to electrical relay arrangements
IPC: H01H9/54
Filed: 1939-08-28
Abstract: 537,005. Non-selective signalling. SANGAMO WESTON, Ltd., Aug. 28, 1939, No. 24728. Convention date, March 10. [Class 40 (i)] [Also in 'Groups XXXIX, XXV and XXXVII] A circuit controlled by contacts of a sensitive instrument or relav comprises, in series, a current source, a current responsive device, e.g. a power relay, a voltage inducing device, e.g. an inductance, which may be that of the responsive device, and a coherer, the instrument contacts being shunted across one of the circuit elements other than the current source so that operation thereof produces a voltage surge in the circuit which reduces the resistance of the coherer whereby the responsive device operates and the instrument contacts are shunted as regards further surges. The instrument contacts may be connected in shunt of the coherer or the inductance or in shunt of the primary of a transformer to the secondary of which the coherer is connected. Chattering of the sensitive contacts is advantageous in the production of the required voltage surge and contact constructions are described. Resetting of the coherer may be effected manually but preferably automatically. Circuit arrangement, Fig. 5. A power relay 12, controlling a load circuit L<SP>1</SP> is connected across a source 6 in series with a coherer 8 which is mounted on a pivoted member 7 having a contact 4 engageable by the sensitive instrument contact 3. When contact at 3, 4 is made and broken, the surge due to the inductance of 12 reduces the resistance of the coherer so that relay 12 operates and, in addition to controlling the load circuit, operates magnet 17 which jars the coherer and opens the circuit of relay 12 at 11 thereby restoring the circuit to normal. In modifications, the instrument contact 3 may take up either of two operative positions to control two power relays associated with a single coherer or with two coherers having a common or separate resetting magnets. The power relays may control a reversible motor. The resetting device may operate after a delay obtained by sluggish action motor or thermally operated timing devices. Surges originating outside the control circuit may, be reduced by condensers.
Patent GB-259377-A (GB)
Title: Improvements in and relating to dry gas meters
IPC: G01F3/22
Filed: 1925-10-06
Abstract: 259,377. Simpson, S. Oct. 6, 1925. Gas meters.-In a dry gas meter fitted with flag wires c<1>, d<1> mounted in bearings and having cranked portions a<3> passing through bearings a<6>, a<7> on the diaphragm discs b, the upper and lower portions a<1>, a<2> of the flag wires are connected together by strengthening rods a<8>. The rod a<8> is preferably bent or curved.
Patent GB-1501807-A (GB)
Title: Wet process for the treatment of an exhaust gas
IPC: B01D53/34
Filed: 1976-06-16
Abstract: 1501807 Exhaust gas cleaning MITSUBISHI JUKOGYO KK 16 June 1976 [16 June 1975] 24867/76 Heading B1R An apparatus for wet removal of dust from an exhaust gas G comprises a tank for storing a scrubbing liquid, a vertical column 1 with upwardly directed spray nozzle 2 and a nozzle or spray ring 3 located under nozzle cover 4 at the gas entrance to direct a second, different scrubbing liquid A onto the interior wall of column 1 to prevent deposit and scale build-up. In the embodiment of Fig. 3b the wall 5 is porous to allow liquid A to permeate therethrough.
Patent GB-747991-A (GB)
Title: Improvements in or relating to variable inductors
IPC: H01F21/08
Filed: 1954-08-27
Abstract: 747,991. Inductors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 27, 1954 [Sept. 1, 1953], No. 24960/54. Class 38 (2). A variable inductor of the type wherein the permeability of the core is varied by a premagnetizing field comprises an electromagnet field winding 7 having a core member consisting of a ring 1 and end plates 3, 5 of sintered ferro. magnetic material; the pole pieces of this core member being formed by two annular pieces 9, 11 of similar material, which pieces are supported by a glass tube 13 and each of which has two oppositely disposed parallel co-planar ground surfaces to which surfaces are secured two flat core rods 15, 17 forming a magnetic coupling between the annular pole pieces 9, 11, the core rods 15, 17 carrying windings 19, 21 which form the inductor windings proper. For further inductance variation a rod-like permanent magnet 23 may be movable within the glass tube 13. In another embodiment the pole pieces 9, 11 may each comprise two semicircular members, the core rods 15, 17 being secured to the adjacent straight sides thereof.
Patent GB-221370-A (GB)
Title: Improvements in headlight lenses
IPC: F21V11/00
Filed: 1923-10-08
Abstract: 221,370. Dufek, L. Oct. 8, 1923. Lenses.- A lens for use on a motor-vehicle headlight is provided on its front face with slightly curved and downwardly inclined transverse ridges 3, 6, 10, 11, 7, 16 merging into upstanding curved side ridges 4 and with a number of vertical ribs 15 having on either side a horizontal rib 14, and on its rear face with transverse ridges 5, 8, 12, 13, 9, 17 complementary to the transverse ridges on the front face and with vertical inclined ribs 18, 19 having between them a pair of vertical ribs 20 at the lower part of the lens. The body portion 1 of the lens, the side ridges 4, and the ribs 14, 15 18, 19, 20 are made of clear glass and are prismatic so as to refract light downwardly and laterally, whilst the upper surfaces of all the transverse ridges and the lower surfaces of the transverse ridges 3, 5, 16, 17 are frosted, coloured with a colour such as green, painted, or otherwise treated so as to diffuse and deflect downwardly the upwardly projected light.
Patent GB-410382-A (GB)
Title: Improvements in floor polishers in which liquid polish is employed
IPC: A47L13/316
Filed: 1933-09-11
Abstract: 410,382. Brushes. GLEN, T., 29, Hendy Avenue, Coogee, New South Wales, Australia. Sept. 11, 1933, No. 25086. [Class 19.] A floor polisher of the type described in Specification 341,510 comprises a sole plate 1 to which a felt pad 3 is secured by clips 2. Ears 22 and a spring clip 23 serve to retain a mop 20 on a frame 18. Polish is fed from a container 5 closed at will by a cork 7 operated by a spring 9 and sliding handle 12. A stall 14 is pivoted to projections, not shown, on each side of the plate 1.
Patent GB-1276926-A (GB)
Title: An improved heating device
Inventor: BROWN ROBERT NEVILLE
IPC: F24C7/04
Filed: 1969-05-16
Abstract: 1276926 Electric heating device R N BROWN and R H BROWN 15 April 1970 [16 May 1969] 25199/69 Heading H5H A warming pad which may be used for warming feet, for sterilizing soil, or for heating confined areas for warming and rearing young animals comprises a sheet-metal, rubber, or plastics casing 10, 11 containing a resistance heating element 14 spaced from lid 11 and mounted on the top of a layer 12 of thermal insulation, e.g. foamed plastics or pumice chips. The layer 12 can be moulded in situ in tray 10 or can be surrounded by a reinforced aluminium envelope 13. Heating element 14 is a low-resistance element of the type used for electric blankets and comprises a wire in a polythene tube which is secured meander fashion to the top of layer 12 by insulating clips 16 at the edges and by insulating strip 17 at the centre. Corner and edge blocks 18 space element  14 from casing 10, 11.
Patent GB-757989-A (GB)
Title: Cold-setting copolymers
IPC: C08G63/685
Filed: 1952-10-10
Abstract: Cold setting copolymers are obtained by catalytically copolymerizing a vinyl monomer with a saturated and/or unsaturated polyester wherein at least one of the polyesters has been modified with a t-amine of formula <FORM:0757989/IV(a)/1> in which R is alkyl, preferably of 1 to 18 carbon atoms, aryl, preferably phenyl, toluolyl, diphenyl or naphthyl, aracyl or aralkyl and Z is COOH, COO- alkyl, NH2 or OH and x is 1 to 6.  The t-amines specified are N-di-hydroxyethyl aniline and naphthyl amines, N-dihydroxyethylamino biphenyls, N-(phenyl, b -hydroxyethyl, g -amino-propyl)-amine, N-(phenyl, hydroxyethyl, carboxylethyl)-amine, anilino-diacetic acid and its dimethyl ester and p-toluidino-diacetic acid.  The polyesters used may be those described in Specification 755,321 or may be derived from polybasic saturated and unsaturated carboxylic acids, e.g. adipic, phthalic and maleic acids, and polyhydric alcohols, e.g. ethylene glycol, diethylene glycol and 1,3-butanediol, and amino-alcohols with or without diamines.  Vinyl monomers specified are styrene, vinyl acetate or chloride and acrylates and catalysts listed are benzoyl, cumene and lauroyl peroxides.  Examples describe the modification of polyesters (I and II) during condensation and (III to XIII) after condensation, and the addition of hydroquinone as polymerization inhibitor.
Patent GB-708229-A (GB)
Title: Improvements in thermostats for use with electric immersion heaters
Inventor: WILSON WILLIAM HARRY
IPC: H01H37/66
Filed: 1952-10-13
Abstract: 708,229. Thermal switches. RHEOSTATIC CO., Ltd. Oct. 13, 1952, No. 25608/52. Class 38(5) A thermal switch for use with electric immersion heaters comprises a rigid channel-shaped member 1 having fixed to it at one end a contact 2 and at the other end a bimetal strip 9 which extends along the member and carries an electrically and thermally insulating strip 10 on which is mounted a contact 11. The contacts are connected to terminals mounted in an insulating cover 16, the movable contact 11 being so connected by a flexible conducting strip 13. Snap action is provided by the co-operation of an armature 14 on the strip 10 with a magnet 8 on the member 1. Contact 2 and bimetal strip 9 are adjustable by screws 4, 15 respectively.
Patent GB-590704-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/94
Filed: 1944-12-21
Abstract: 590,704. Discharge lamps. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., JENKINS, H. G., and SIMMS, C. H. Dec. 21, 1944, No. 25633. [Class 39 (i)] An electric discharge lamp having a discharge passage of spiral shape comprises a glass disc on which ridges 12, 13 are formed by moulding, pressing or by the fusion of a strip of glass forming a two-start spiral passage as shown in the Figure, to which a second glass disc with or without similar ridges is fused along the crests of the ridge. Tubulations 16 and 17 in which electrodes are arranged are sealed through one component. The lamp may be in the form of a cylinder, conical frustum or other dished shape, the space within being used to accommodate starting switches, radio interference suppressors, &c., or an additional light source to modify the colour of the light. The lamp may have a plurality of discharge paths in the form of multi-start spirals, each with a different filling or fluorescent coating. The inner surface of the inner component may be metallized with a film, e.g. of silver, to reduce loss of light or a highly reflecting sleeve may be arranged in the space within. Specifications 421,932, 457,486, 460,756 and 534,952, [Group XXXVI], are referred to.
Patent GB-1068568-A (GB)
Title: Improvements in the production of nitric acid
IPC: C01B21/26
Filed: 1964-06-22
Abstract: <PICT:1068568/C1/1> In the preparation of nitric acid by the catalytic combustion of ammonia with air or other free oxygen-containing gas, followed by absorption of the oxidized nitrous gases in water, a filling fluid, particularly water, is added to the residual gases prior to their indirect heating by the combustion gases, and the heated mixture is used to drive a turbine. The expanded gases are subsequently cooled to below the dew-point to recover at least part of the latent heat of condensation of the water, suitably by indirect heat exchange in the same vessel as the compressed residual gases and water are mixed.  Referring to the drawing, air is compressed to e.g. 2.5 kg. per sq. cm. above atmospheric pressure in compressor 7, controlled, as is compressor 9, by turbine 10, passes via pipe 8 to heat exchanger 16 where it is heated to 180 DEG  C., and mixed with ammonia from vaporizer 1 in vessel 5.  The mixture is fed to burner 18, and the combustion gases pass through heat exchangers 19, 20, 16, 22 and cooler 23 to oxidation towers 24 and 25. The temperature drops from 800 DEG  C. in burner 18 to 45 DEG  C. in cooler 23.  The oxidized nitrous gases are fed through channel 26 and cooler 27 and compressed to, e.g. 10 kg. per sq. cm. above atmospheric pressure in compressor 9. The compressed gases pass via pipe 28 and cooler 29 to oxidation tower 30 and thence to absorption tower 31 from which nitric acid is removed at 32.  The residual gases at, e.g. 9 kg. per sq. cm. above atmospheric pressure pass via pipe 33 to heat exchanger 34 where they contact water under pressure supplied by pump 40 and heated to about 200 DEG  C. by heat exchanger 22.  The mixed gases are heated to about 125 DEG  C. in exchanger 34 by indirect contact with the gases leaving turbine 9, and pass through pipe 35 to heat exchangers 20 and 19, being thus heated to 600 DEG  C. by indirect contact with the combustion gases.  The hot gas mixture is fed through pipe 36 to the turbine 10, and after expansion, return through pipe 37 to heat exchanger 34, where their temperature falls below the dew point. Condensed liquid is separated in 39, and may be recycled through pump 40 or, if containing nitric acid, to the absorption tower.
Patent GB-288097-A (GB)
Title: Improvements in or relating to washing machines and the like
IPC: D06F33/04
Filed: 1927-09-29
Abstract: 288,097. Perrett, I. G. Sept. 29, 1927. Addition to 264,396. Liquids and detergents, supplying and discharging.-The cam-fitted shaft f described in the parent Specification is mounted removably in bearings l<2> so that it can be removed bodily and a different control drum substituted. The relay valves contained in the casing l are provided with means whereby they may be actuated manually, when desired, independently of the automatic control. The valves in the liquid supply pipe include a pilot valve which when opened by the relay valve equalizes pressure on both sides of the main valve which is subsequently opened by further movement of the relay valve spindle. The discharge valve may be operated by a treadle or from the control drum. The relay valves may operate steam ejectors in the liquid supply pipes instead of operating the valves in these pipes directly. Means are provided for disconnecting the drive automatically at the end of the washing cycle, when a visible or audible signal may be given.
Patent GB-845163-A (GB)
Title: A carpet stretcher
Inventor: HILL HARVEY JAMES
IPC: A47G27/04
Filed: 1958-08-11
Abstract: 845,163. Carpet stretchers. ROBERTS MANUFACTURING CO. Aug. 11, 1958, No. 25720/58. Class 61. In a carpet stretcher having a head 12 opening downwards in which is disposed a plate 18 having prongs 14, a handle 10 being connected to the head, a plurality of short pins 15 for engaging the nap only of the carpet are provided in addition to the relatively long pins 14 for engaging the base of the carpet. The pins 15 are mounted in three pads 37 which are held in spaced relation in the head by screws 40. The long pins 14, which are adjustable in length by moving the plate 14 vertically in the head by means of the screw 21, are positioned between the pads 37 so as to be interspersed between the pins 15. A knee pad 57 is mounted on the other end of the handle by a threaded ring 55. A rigid plate 56 having an opening 63 is mounted on the end of the handle the pad and plate thus defining an adjustable cavity. The handle 10 comprises telescoping members 47, 48, the outer member 47 being slotted to provide axially extending fingers 50 adapted to fit in any one of three circumferential grooves formed in the member 48. A sleeve 52 slidable on the member 47 retains the members in fixed relation.
Patent GB-456331-A (GB)
Title: Improvements in or relating to braun tubes, preferably for television purposes
IPC: H01J29/62
Filed: 1935-03-04
Abstract: 456,331. Cathode ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. March 4, 1935, No. 25754/36. Convention date, March 31, 1934. Addition to 423,427 and divided out of 457,757 and 6689/35 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 4, 1935. [Class 39 (i)] Cathode-ray tubes for television &c. and having one or both pairs of deflecting plates 13 .. 16 operated in reverse phase and negatively biassed relatively to the anode 12 as described in the parent Specification are provided with a coating 19 on the wall of the tube. The coating extends from near the anode 12 to near the picture screen and may be connected to the anode by a spring. The operation of the plates in reverse phase and ta negative bias may be carried out by transformers 35, 40 with centre tappings connected to adjustable tappings on a potentiometer 42 and enables the disturbing effect of the plates on the field of the electric lens 9, 12 to be compensated or the plates to act as additional concentrating means. The coating 19 ensures that the electrons after deflections again reach anode potential. Specifications 447,070, 452,650, and 457,757 are referred to.
Patent GB-1036855-A (GB)
Title: Improvements in or relating to fabric finishing apparatus
IPC: D06C7/00
Filed: 1963-10-18
Abstract: The subject matter of this Specification is substantially indentical with that of Specification 1,036,853.  The claims however relate to apparatus.
Patent GB-258739-A (GB)
Title: A new or improved method of, and means for, utilizing electric current from power mains for wireless apparatus
IPC: H02J7/00
Filed: 1925-10-15
Abstract: 258,739. Heese, E. Oct. 15, 1925, Drawings to Specification. Thermionic amplifiers and detectors. - The cathode and anode circuits of wireless apparatus are supplied from small accumulators which, whilst in use, are being charged from the mains supply after rectification or appropriate voltage reduction. The charging and discharging rates are approximately equal. Automatic cut-outs may be provided to prevent gassing and over-charge. Reference has been directed by the Comptroller to Specification 258,931.
Patent GB-967879-A (GB)
Title: Improvements in or relating to the hydrogenation of olefins in the presence of aromatic hydrocarbons
IPC: C07C7/163
Filed: 1962-07-05
Abstract: Diolefines present in a normally liquid hydrocarbon mixture, for example dispolene, containing diolefines, mono-olefines and aromatics and boiling in the range 100-400 DEG  F., are hydrogenated by contacting the mixture together with hydrogen with a palladium-alumina catalyst at a temperature not exceeding 210 DEG F., the hydrocarbon mixture being at least 90% wt. in the liquid phase while in contact with the catalyst.  The alumina may be activated or gamma alumina.  Preferred conditions are 0-2000 p.s.i.g., 0.1-10 L.H.S.V.  The thus hydrogenated mixture may thereafter be contacted in the vapour phase together with hydrogen with a cobalt molybdate-alumina catalyst, preferably at 550-950 DEG F., 200-2000 p.s.i.g., 0.1-10 L.H.S.V., or with a tungsten-nickel sulphide, nickel-alumina, platinum-alumina, or palladium-alumina catalyst to hydrogenate the mono-olefines without substantial hydrogenation of the aromatics.  Specification 624,353 and U.S.A. Specifications 2,325,033, 2,799,627, 2,898,308 and 2,953,612 are referred to.
Patent GB-232272-A (GB)
Title: Improvements in thermionic or like high-frequency generators
IPC: H03B5/10
Filed: 1923-10-16
Abstract: 232,272. Dubilier, W. Oct. 16, 1923. Thermionic generators.-Relates to high-frequency generating systems of the kind in which thermionic valves are arranged in parallel across a common source of direct current, and are backcoupled through a. tuned flywheel circuit coupled to the grid and plate circuits, and consists in an arrangement in which the flywheel circuit is sharply tuned and in which both the plate circuits are coupled to a transmitting aerial or other load. As shown in Fig. 1, two or more circuits X, Y, each containing a thermionic device T, T<1> are branched in parallel across a common hightension battery B, and supply oscillatory current to an aerial 24. The frequency of the generated oscillations is determined by the aerial circuit, which is free from iron cores and possesses a low oscillation decrement of the order of 0.01 or 0.001. The aerial is coupled to the output from the generators T, T<1> through the coils 26, 28 and 27, 29 respectively, whilst a coil 30 controls the input applied to the grids 20, 21 through a coil 23, the frequency of the aerial circuit and therefore of the generated oscillations being adjusted by means of a variable inductance 32, 31. Grid bias is applied to both valves through a lead 23<a> from a battery B'. As shown in Fig. 2 the ouptput frequency is controlled by a separate sharply-tuned flywheel circuit 33, 34 coupled to the aerial. through the coils 34<a> and 34<b> and to the combined grids through the coils 34, 23. One of the parallel branches X, Y may serve as a bypass circuit containing inductance and capacity only.