baber/WOPTO huggingface dataset:
Patent GB-650320-A (GB)
Title: Device for use in locating errors in banking or commercial book-keeping
IPC: B42D12/00
Filed: 1947-12-31
Abstract: 650,320. Calculating-apparatus. PEUROZET, L. M. Dec. 31, 1947, No. 35279. Convention date, July 12, 1946. [Class 106 (i)] A device for locating the source of an error in an addition, due to the transposition of two consecutive digits of one of the items to be added, comprises a frame or pocket a having apertures d1, d2, e in which appear numerals on a slide b, as shown. When the error (a multiple of 9) appears in the aperture e, all the pairs of digits which could have caused the error by being transposed are formed by the juxtaposition of tho digits in aperture d1 or d2, according to whether the error is negative or positive, with the adjacent digits on the pocket.
Patent GB-1394868-A (GB)
Title: Devices for indicating the heating of flame glow plug pins
IPC: H01H37/52
Filed: 1972-07-28
Abstract: 1394868 Indicating the heating of flame glow plug pins ROBERT BOSCH GmbH 28 July 1972 [31 July 1971] 35311/72 Headings F1B and F1K A device for indicating the heating of flame glow plug pins (not shown) in an internal-combustion engine, has a heater filament 11 attached by electrically insulating means to a plate 15 and an indicating device (not shown), the heater filament 11 being adapted to conduct at least a part of the heating current of the flame glow plug pins and the indicating device having an electrical circuit comprising first and second bi-metallic strips 12, 18 and co-operating first and second contacts 16, 17 attached respectively thereto. The first bimetallic strip is arranged to be heated by heat radiating from the heater filament 11 when the flame glow plug pins are being heated, resulting closure of the first and second contacts after a predetermined period serving to trigger the indicating device and the second bi-metallic strip is arranged to be deflected in the direction of the first contact of the first bi-metallic strip on a rise in the ambient temperature whereby to adjust the predetermined period a sheet metal shield 24 is arranged between the heater filament 11 and the second bi-metallic strip 18.
Patent GB-791036-A (GB)
Title: Improvements relating to the application of powdered luminescent materials to the envelopes of electric discharge lamps
Inventor: ANDERSON JAMES THOMSON
IPC: C09K11/02
Filed: 1953-12-18
Abstract: 791,036. Discharge lamps: luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1954 [Dec. 18, 1953], No. 35333/53. Class 39(1). A fluorescent lamp has the internal wall of its envelope provided with a plurality of layers of powdered material by a process which consists of depositing an underlying layer of a suspension of a powdered material in a solution of a binder in a solvent, removing the solvent, depositing an overlying layer of a suspension of powdered luminescent material in a solution of a binder in a solvent having substantially no solvent power for the residue of the binder employed in depositing the underlying layer and the solvent and binder for the overlying layer having no deleterious reaction with the binder of the underlying layer, removing the solvent, and then removing the residue of both binders by heat. A solution of nitrocellulose in amyl acetate or of ethyl cellulose in an aromatic hydrocarbon can be used as the suspending liquid for the underlying layer material, and a water solution of a soluble salt of alginic acid, e.g., triethanolamine alginate, as disclosed in Specification 669,392, as the suspending liquid for the overlying layer material. Other water soluble compounds which can be used are (a) a material known under the Trade name " Vulcastab T " (b) polyvinyl methyl ether maleic anhydride copolymer, known under the Trade name " PVM/MA " (c) ammonium salts of polyacrylic acid, (d) polyvinyl methyl ether known under the Trade name " Lutonal M/40," or (e) an organic polymer known under the Trade name " Carbopol 934," as disclosed in Specification 775,202. The underlying layer can be of magnesium oxide which acts as a reflector and the overlying layer a mixture of phosphors. Alternatively the layers include different phosphors as described in Specification 680,284. The underlying phosphor can be excitable by short wave radiation of 2537, 3650, 4046 and 4358 A, and may be magnesium arsenate activated by manganese or barium halophosphate activated by uranium. Specifications 580,856 [Group XL] and 603,326 also are referred to.
Patent GB-352871-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B62D25/08
Filed: 1930-11-24
Abstract: 352,871. Road vehicle bodies. BUDD MANUFACTURING CO., E. G., 25th Street, Philadelphia, U.S.A.-(Assignees of Ledwinka, J. ; c/o Budd Manufacturing Co., 25th Street, Philadelphia, U.S.A.) Nov. 24, 1930, No. 35338. Convention date, Dec. 6, 1929. Addition to 283,197, [Class 108 (i), Road vehicles, Body details &c. of]. [Class 108 (i).] The metal side structures of the vehicle bodies described in the parent Specification are modified so as to replace the inner stamping by a number of separate reinforcing and bracing members. Fig. 2 shows the outer stamping S and Fig. 4 the outer stamping with the reinforcing members in position. The roof reinforcing member J comprises an angular member 24, 25, Fig. 10. The reinforcement A for the front door post comprises a channel member 28, 29, 30, Figs. 3 and 7, provided with off-sets for the hinge members. The B-C reinforcement for the middle door post is of plate form 39, Fig. 11, and is connected to the outer stamping S by crimping. The rear door post reinforcement comprises two members D, D<1> provided with off -sets for the hinge members and adapted to be joined to the roof reinforcement J and wheelhousing reinforcement F. The reinforcement E, Fig. 17, for the quarter window is connected to the outer panel S by angular brackets 49<1>. The lower part of the stamping S is provided with strip-reinforcing members G, H, I.
Patent GB-1030073-A (GB)
Title: Improvements in motion picture cameras provided with automatic exposure setting mechanisms
IPC: G03B19/18
Filed: 1964-08-28
Abstract: 1,030,073. Cine cameras; exposure control. NIPPON KOGAKU K. K. Aug. 28,1964 [Sept, 3, 1963], No. 35371/64. Headings G2A and G2E. A cine camera with an automatic exposure setting mechanism particularly of the kind disclosed in Specification 1,029,467, has a spring- loaded trigger lever 14 downwardly movable through a first stage in which switch 22 is closed to energize electric motor 1 and allow the exposure conditions to be measured, to a second stage where the motor is engaged with the intermittent film transport 11 and shutter mechanism by means of a clutch 5c, and the exposure is made. Pin 16 on lever 14 engages groove 5b in the clutch member 5c carried on a hollow shaft 5 which is driven by motor 1 through gears 2 and 5a, and which is axially slidable on the shaft 7 to permit the driving engagement of member 5c with clutch disc 8. Eccentric cam 10 then reciprocates transport slider 11, and shutter disc 13 rotates. Figs 3-5 (not shown) show the action of lever 14. A clockwork motor may be used.
Patent GB-1282330-A (GB)
Title: Infrared sensitive semiconductor device and method of manufacture
IPC: H01L31/18
Filed: 1970-07-22
Abstract: 1282330 Semi-conductor infra-red sensors INTERNATIONAL BUSINESS MACHINES CORP 22 July 1970 [17 Nov 1969] 35469/70 Heading H1K [Also in Division C7] A ternary compound consisting of Hg, Cd, and Te is grown as a polycrystalline film on a substrate by deposition from the vapours of the elements. The substrate may be sapphire, quartz, high temperature glass or polycrystalline alumina, and is preoleaned in a vapour degreaser and acid etched, e.g. in acid dichromate. Vapour of the elements is generated in three separate furnace tubes, and may be carried by an inert gas, e.g. H 2 , to a mixing chamber and then to the heated substrate. After deposition of the ternary compound, an IR sensor may be made by vapour depositing electrode material, e.g. Au, on part of the ternary layer, the remainder being covered with a mask that is later removed. Gold-wire electrodes are attached using indium solder and silver-containing conductive resin. The sensor may be exposed directly or through its substrate, and may be cooled by liquid nitrogen.
Patent GB-341630-A (GB)
Title: Apparatus for stringing tennis and other rackets
IPC: A63B51/14
Filed: 1929-11-21
Abstract: 341,630. Tennis &c. rackets. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, GOODHALL, S. N., and BRENTNALL, G. C., Fort Dunlop, Erding- ton, Birmingham. Nov. 21, 1929, No. 35590. [Class 132 (ii).] Apparatus for stringing tennis and like rackets is provided with load-applying means for tensioning the string wherein the string-tensioning means ceases, under automatic control, to tension the string beyond a predetermined value. In using the apparatus, a racket frame, preferably with the longitudinal strings threaded, is secured upon a bed 3 by means of resilient frame clamps 4 and a handle clamp 53. A string is secured at one end to the racket and is passed across the frame and carried between the corrugated jaws of one of the grippers 6 loosely mounted upon a shaft 1 or 2. These shafts are rotated by means of a treadle 81 or a motor 80, through intermediate gearing including a differential gear 21, a clutch 24, and a shaft 10. On operating the treadle or starting the motor, the shaft 1, at the commencement of its rotation, rotates an arm 28, Fig. 9, engaging an eccentric portion 34 of one gripper jaw 31 and closes this jaw upon its co-operating jaw 30. Continued rotation of the shaft and arm then rotates the gripper jaws as a whole and applies tension to the string. The opposite axle of the differential carries a pendulous weight 23 which rises to oppose the increasing pull on the string until, at a predetermined tension an arm moving with the pendulous weight displaces a catch and allows a spring to uncouple the clutch 24 and thereby discontinue the rotation of the gripper jaws. A hand-released pawl 27 prevents relaxation of the pull on the string. Before releasing the string from the gripper, a jawed string-clamp 37 adjustably mounted on the apparatus is applied by hand to the string after which a similar stringing operation may be performed by using the second gripper. To facilitate the threading of the string across the racket a removable bridge-piece 65, Fig. 5, is pivotally arranged over the racket and carries a shaft with a series of eccentric discs 56. By suitably rotating the discs the alternate longitudinal strings are depressed thereby facilitating the passage of the transverse string. In a modified machine, the tension-regulating pendulous weight is carried by the rotatable cage or housing of the differential instead of by one axle.
Patent GB-845098-A (GB)
Title: Novel benzoquinolizine derivatives and a process for the manufacture thereof
Filed: 1958-04-01
Abstract: The invention comprises benzoquinolizines of the general formula: <FORM:0845098/IV(b)/1> wherein R1, R2 and R3 represent alkoxy groups that are optionally present (any two of which may be combined as an alkylenedioxy group) and their preparation by hydrolysing and decarboxylating compounds of the general formula: <FORM:0845098/IV(b)/2> preferably by heating with aqueous mineral acids.  Examples detail the preparation of 9-methoxy-, 9, 10-dimethoxy-, 9, 10-methylene-dioxy, and 9, 10, 11-trimethoxy- 2-oxo- 1, 2, 3, 4, 6, 7-hexahydro-11bH-benzo-[a]-quinolizine.
Patent GB-301749-A (GB)
Title: Process for recording the passage of electric currents
IPC: G01N31/22
Filed: 1928-12-03
Abstract: 301,749. Rudin, R. Pollak-. Dec. 3, 1927, [Convention date]. Electric marking-action.-A process for recording the passage of electric currents applicable for use in picture telegraphy consists in effecting the electrolytic dissolution of metallic electrodes, suitable catalysts being employed to facilitate the progress of the reaction. In one example a, paper-strip impregnated with some only of the components forming the substance capable of chemical reactive action is utilised and the necessary metallic ions required for the process are derived from one or more of the electrodes. The chemical reaction may produce a visible record immediately or become visible by washing, thermal, or other treatment. As examples of solutions, electrodes and catalysts, the following substances are mentioned, viz., dimethyl glyoxime, nickel, and barium hydroxide; tannin, iron, and salts of rhodium. In certain circumstances organic dyestuffs or their leuco-compounds may be used as the impregnating fluid. The recording may be effected by enclosing the reactive fluid in glass tubes the colour reaction becoming visible at the electrodes. The ions required to produce the reactions may be produced by the dissolution of the anode or cathode or by both of these if alternating current is employed, or two different metallic ions may be employed by using electrodes made from alloys.
Patent GB-1131928-A (GB)
Title: Electromechanical relays
Inventor: WOODHEAD HARRY STANLEY
IPC: H01H51/28
Filed: 1967-08-04
Abstract: 1,131,928. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. 4 Aug., 1967, No. 35855/67. Heading H1N. A sealed contact relay similar to that described in Specification 1,115,401 has its diaphragm armature 17 normally stressed against a fixed annular contact 13 and arranged to be moved away from the fixed contact on energization of the coil 25, to magnetize the circuit including the armature diaphragm 17, core 15, end plate 27 outer cover 29 and annular cap 14. A second contact unit may replace the end plate 27. The diaphragm may be coated with a noble metal such as palladium to form the contact surface on one side and a magnetic spacer on the other. Projecting terminal pins 31, 32, 33 may be spaced to engage printed circuit connectors (not shown). Reference has been directed by the Comptroller to Specifications 1,026,564 and 1,026,565.
Patent GB-1010165-A (GB)
Title: Glass closures
IPC: B32B17/10
Filed: 1963-09-12
Abstract: Glass closures, e.g. window panes and other safety-glass sheets are formed from a soda-lime glass of which at least portions of the surface have a higher potassium content than the rest of the sheet. Glass sheets are treated for the replacement of sodium ions by potassium ions by the process of Specification 1,010,164. Specification 819,179 also in referred to.
Patent GB-1091807-A (GB)
Title: Improvements relating to methods of manufacturing wire or sheet from metals in powder form
IPC: B22F3/12
Filed: 1966-08-11
Abstract: Sintered metal sheet or wire e.g. of W, Ta or Nb is made by placing the metal powder in a tubular container of a material having the same composition as the powder, sintering in an inert atmosphere, removing the container and working the sintered body to form a sheet or wire. Sintering is preferably carried out by high frequency heating and the atmosphere is argon or a vacuum. W powder particle size 60 to 80 microns was sintered in a W tube at 2400 DEG C. for five minutes and then swaged and drawn to form a wire or rolled to a sheet.
Patent GB-413692-A (GB)
Title: Improvements in and relating to reactance-operated protective arrangements for electric circuits
IPC: H02H3/40
Filed: 1932-12-20
Abstract: 413,692. Protective cut-out arrangements. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Dec. 20, 1932, No. 36129. Convention date, Dec. 21, 1931. [Class 38 (v).] A protective arrangement comprises a relay which operates in dependence on the reactance of a circuit and on the state of equilibrium between two voltages, one the supply voltage E and the other proportional to the first derivative (di/dt) of the current-time curve. These voltages are arranged to be active only at about the zero of the cycle, in which case the voltage of the system equals L.(di/dt), so that the reactance is proportional to E/(di/dt). The system 10, 11 has a current transformer 13 energizing an inductance 15 and a resistance 14, the voltage across which is rectified at 16 and applied to an impedance 17 so as to be proportional to the rectified current of the system (curve 3 of Fig. 2). The voltage across 15 is proportional to, and leads by 90‹, the current in 13 and is therefore proportional to di/dt (curve 1). A voltage transformer 12 has a secondary coil 18 supplying an inductance 20 through a half-wave rectifier 19 so that the voltage across 20 corresponds to the system voltage (curve 2). The voltages of curves 1, 2, 3 are applied to the grid of a valve 21 having a biassing battery 22, and it will be seen that at or about the moment the curve 3 is zero, the only voltages impressed on the grid are those of 1, 2, that is the circuit reactance which, if small enough, causes the valve to energize the release coil 27. A further voltage (curve 4) is applied to the grid by an impedance 26 which is energized from a further secondary 29 over a resistance 23, choke 24, and half-wave rectifier 25, this voltage being such that it does not tend to prevent release at the point a, although at the next zero-point of curve 3 it opposes release. In a modification (Fig. 5, not shown), to avoid a delay of more than a half-cycle between the occurrence of the fault and the energization of the coil 27, there is provided a second valve in parallel with the valve 21, energized by the same voltages, but at a phase-displacement of 180‹. In both forms, the output of valve 21 may be inadequate to operate the coil 27, so an amplifying valve is used (Fig. 4, not shown), the grid of the latter being energized across a resistance in the input to the valve 21, so that when the latter becomes conducting, the voltage across the resistance is impressed on the grid of the amplifying valve.
Patent GB-1508485-A (GB)
Title: Electric stud welding apparatus
IPC: B23K11/26
Filed: 1975-09-03
Abstract: 1508485 Protective circuits for stud welding apparatus HILTI AG 3 Sept 1975 [13 Sept 1974] 36192/75 Heading H2H Stud welding apparatus comprises a condenser battery 23, a thyristor welding switch 32 for closing the welding circuit to initiate a welding operation and a protective circuit which prevents the closing of the welding switch when the magnitude of the resistance between the welding terminals 43, 44 exceeds a predetermined value. The value of the effective resistance 46 between the terminals at which the protective circuit responds is selected to be between 100 and 700 ohms. The condenser battery 23 is charged from a D.C. source 2 via the closed contacts 6/1, 6/2 of a de-energized relay 6. When the condenser battery voltage reaches a value determined by the setting of a potentiometer 22, a transistor 7 conducts to energize the relay 6 via a D.C. source 3 thereby opening the contacts 6/1, 6/2. When the welding operation is commenced, provided that the effective resistance 46 between the terminals 43, 44 is less than the predetermined value, the increased current flowing through a resistor 37 reduces the potential at the cathode of a Zener diode 38 below the breakdown value so that a transistor 29 is non-conductive. On closing a push button switch 45, a relay 42 is energized from a D.C. source 41 to close contacts 42/4, 42/5 so that a relay 11 is energized via a conductive transistor 10. The contacts 11/4, 11/5 of the relay 11 close to supply trigger current to a thyristor 34 via a resistor 16. The thyristor 34 triggers the thyristor 32 to connect the condenser battery across the welding terminals. If the resistance 46 exceeds the predetermined value, the conduction of the transistor 29 prevents the triggering of the thyristors 34, 32. On completion of the weld and removal of the gun from the welded stud, the value of the resistance 46 becomes infinite so that the relay 42 is de-energized and current flows through contacts 42/5, 42/6, resistance 15, contacts 11/2, 11/1, diode 40 and a resistance 35, the voltage drop across which triggers a thyristor 25. The conduction of the thyristor 25 completes a discharge circuit for the condenser battery 23 and enables the transistors 7, 10 to be switched off. The relays 11, 6 are therefore de-energized to allow re-charging of the condenser battery.
Patent GB-1019736-A (GB)
Title: Vibrato sound generating apparatus
Inventor: IPPOLITO ANTHONY CHARLES
IPC: G10H1/047
Filed: 1962-09-24
Abstract: 1,019,736. Electrophonic musical instruments. WURLITZER CO. Sept. 24, 1962, No.36233/62. Heading G5J. [Also in Divisions F2 and H1] Vibrato effects are produced by two treble loud-speakers 12 mounted back-to-back on a shaft 24 which rotates about a vertical axis. The loud-speakers are supported on the shaft by arms 26 and are balanced by a counterweight 28. The shaft is driven by an electric motor, a belt and pulley 54. The shaft 24 is mounted on a selfaligning bearings 30, 32 which contain a solid lubricant (see Division F2). Input leads are coupled to the loud-speaker leads by a transformer 56 with a fixed primary winding and a secondary winding which rotates with the shaft 24 (see Division H1). The vibrato equipment may be mounted in a cabinet with fixed bass and treble loud-speakers.
Patent GB-1102042-A (GB)
Title: Process and apparatus for the manufacture of corrugated plastics sheets
IPC: B29C53/28
Filed: 1966-08-15
Abstract: Corrugated sheet material, having a tendency to curl in one direction, is made by passing the sheets, in a cold state, between contrarotating longitudinally ribbed rollers.  The gap between the co-operating ribs is slightly greater than the thickness of the sheet and the ribs on one roller are of a greater height than the ribs on the other roller.
Patent GB-1109313-A (GB)
Title: Improvements in lockable towing fittings for trailer vehicles
IPC: B60D1/06
Filed: 1963-09-17
Abstract: 1,109,313. Lockable towing fittings for trailers. J. C. PHILLIPS. 16 Dec., 1964 [17 Sept., 1963], No. 36467/63. Heading B7J. A towing fitting for trailer vehicles such as caravans comprises a cast body 2 having a socket 3 engageable over the ball head 4 of a towing hitch mounted on a motor vehicle and retainable in engagement with the ball head by means of a slidable pin 1 or a pivoted catch, the body 2 having a hole therein for receiving the bolt of a key or combination operated lock, or padlock, also engaging a recess or hole 11 in the pin 1 or catch to lock it. The pin 1 is slidable in a bore 5 of a tube 12, and is spring-urged downwards into engagement with the ball head.
Patent GB-866182-A (GB)
Title: Process for the preparation of unsaturated nitriles
IPC: C07C69/54
Filed: 1959-03-11
Abstract: Aliphatic and cycloaliphatic unsaturated nitriles are prepared from the corresponding aliphatic or cycloaliphatic ketone cyanohydrin by the process of the parent Specification by atomising a mixture consisting of the cyanohydrin and phosphoric acid, pyrophosphoric acid, meta- or polyphosphoric acids containing not more than 6 phosphorus atoms, hydrogen chloride or hydrogen bromide, or mixtures of these acids, into a reaction chamber at 520-700 DEG C., the inorganic acid or acids being used in amounts of 1-90% by weight of the total mixture.  Steam may be present as a diluent.  Examples describe the dehydration of methyl vinyl ketone cyanohydrin to 2-cyanobuta-1, 3-diene and of cyclohexanone cyanohydrin to 1-cyanocyclohex-1-ene.  Other starting materials mentioned are the cyanohydrins of 3-ketobutan-1-ol and acetoin.