baber/WOPTO huggingface dataset:
Patent GB-1374865-A (GB)
Title: Elevator car speed dictation apparatus
IPC: B66B1/16
Filed: 1972-03-16
Abstract: 1374865 Automatic control of deceleration OTIS ELEVATOR CO 16 March 1972 [7 April 1971] 12419/72 Heading G3R During acceleration, a lift car 10 driven by motor 14 is controlled by a time controlled signal DA (2) fed to integrating operational amplifier M1A, with feedback capacitor M1Q resetting resistor M1DR, and positive and negative clamp circuits PC, NC the amplifier output being fed to motor control 15. The output of M1A is fed also via inverter COA1 to amplifier COA2 where it is subtractively combined with a position signal derived from potentiometer POT1 whose wiper is driven via gear-box GB2 shaft 694 from the selector 22 the distance signal thus representing the distance between the car and a position, representing an advanced flow, being scanned in the selector. The difference signal from COA2 is fed to integrating amplifier COA3 whose feedback capacitor CQ is charged to the instantaneous magnitude of the difference signal, the time constant of combination CQ, COR7 being short. Car deceleration should the car's rated running speed not be reached. Upon receipt of a stop acceleration signal, contacts SC I and SC4 close, contacts SC2 and SC3 opening, so that amplifier Ml A receives as inputs the signal DA (2), the difference signal via adjustable resistor COR5 and the instantaneous charge on the capacitor CQ via COR9, in a sense opposing the difference signal. Since the charge on CQ is equal to the difference signal at the instant of switching of contacts SC, there is no discontinuous change at the input of M1A, and, as CQ discharges through the longer time constant provided by CQ, COR7 and COR8, lift control progresses smoothly to dependence on the distance signal, from its previous dependence on the time controlled signal.
Patent GB-591890-A (GB)
Title: A new or improved method of and apparatus for forming surfaces
IPC: B24B21/00
Filed: 1945-05-17
Abstract: 591,890. Abrasive band apparatus for finishing turbine blades. JAMESON, Ltd., J. L., and JAMESON, J. L. May 17, 1945, No. 12450. [Class 60] The curved surface of turbine or like blades is finished by the method which consists in presenting the surface to abrasive on a flexible carrier, where that carrier is backed by a rigid die surface preformed to correspond in shape and in extent to the shape and extent to which the curved surface of the blade is to be finished, and in causing relative movement between the blade and die surface on the one hand, and the carrier on the other hand. A flexible endless abrasive-coated band 4 passes over a shaped face 2 of a former block 1, under jockey pulleys 5, 6, and around return pulleys 7, 8, one of which latter is driven. A turbine blade 3 is damped to a frame 11, pivoted at 12, which swings down to bring the surface 3<1> of the blade on to the band, where it passes over the former surface 2. A device may be included to start a flow of lubricant to the abrasive surface when the blade holder is brought into position. The band may traverse across the former surface during operation.
Patent GB-1101466-A (GB)
Title: The manufacture of amino-isoxazoles
IPC: C07D261/16
Filed: 1966-03-31
Abstract: 1,101,466. Amino-isoxazoles. F. HOFFMANN-LA ROCHE & CO. A.G. 31 March, 1966 [6 April, 1965], No. 14254/66. Heading C2C. The invention comprises (i) 3-alkylaminoisoxazoles of the Formula II wherein R<SP>1</SP> to R<SP>7</SP> represent C 1-7  alkyl groups and the broken line indicates that R<SP>2</SP> is optional, and (ii) the preparation thereof by reacting an isoxazole of the formula with isobutylene or a compound of the Formula IV where X represents a chlorine, bromine or iodine atom or a hydroxy, perchlorate or alkosulphate group, in the presence of a mineral or arylsulphonic acid and reacting the resulting quaternary salt of the formula where X<SP>1</SP> is the same as X above or represents the anion of said mineral or arylsulphonic acid, with hydroxylamine hydrochloride in the presence of a base, and (iii) the preparation of 3- amino oxazoles of the formula by treating the 3-alkylaminoisoxazoles of the Formula I with a mineral acid, e.g. HBr, HCl, HI or H 2 SO 4 . In the preparation of the compounds of the Formula I, if the compound IV is an iodide, the mineral or arylsulphonic acid may be omitted. Examples describe the preparation of 3-tertbutylamino-5-methylisoxazole and 3 - tertbutylamino - 4,5 - dimethylisoxazole and the conversion thereof to the corresponding 3-aminoisoxazoles.
Patent GB-1350214-A (GB)
Title: Propargyl polymer derivatives
IPC: C08F8/34
Filed: 1971-04-30
Abstract: 1350214 Propargyl polymer derivatives G A F CORP 30 April 1971 [7 May 1970] 12520/71 Heading C3P [Also in Division G2] A light-sensitive organic solvent-soluble filmforming polymer comprises recurring structural units having the general formula wherein W is chosen from hydrogen, alkyl radicals, aryl radicals, and halogen; X is chosen from -O-, -S-, and where R is chosen from hydrogen, alkyl radicals and aryl radicals; Y is chosen from substituted and unsubstituted propargyl radicals; Z is chosen from hydrogen, alkyl, aryl, and M is chosen from hydrogen, alkali metal ions, ammonium ion, substituted ammonium ions, alkyl and aryl radicals, which has been prepared by reacting the required polymeric anhydride, acid halide or carboxylic acid or ester thereof with the appropriate propargyl alcohol, amine or mercaptan. In the examples the polymers are prepared by treating a copolymer of methyl vinyl ether and maleic anhydride with propargyl alcohol in the presence of N-methyl-morpholine and treating poly (methyl acrylate) with propargyl alcohol in the presence of tetrabutyl titanate. Photoresists are prepared by applying films of the polymers, optionally containing thioxanthen-9-one and xanthen-9-one, on glass plates, exposing to a quartz high pressure mercury lamp and developing with methyl ethyl ketone and 2-methoxy ethyl acetate.
Patent GB-1186719-A (GB)
Title: Photographic Emulsions
Inventor: LITZERMAN ROBERTA ANN
IPC: C09B23/04
Filed: 1967-03-17
Abstract: 1,186,719. Direct positive emulsions. EASTMAN KODAK CO. March 17, 1967 [Feb 24, 1967], No. 12690/67. Heading G2C. The speed of direct positive emulsions comprising silver halide grains having absorbed on their surface an electron acceptor or a blue speed increasing (BSI) compound, the halide of which is at least 50 mole per cent chloride comprises adding to the emulsion either an amount of a water-soluble bromide or amounts of a water-soluble bromide and a water-soluble iodide such that the speed of the emulsion is increased. Specified iodides and bromide are ammonium, K, Li, Na, Cd and Sr salts. The emulsion may be a covered grain emulsion as described in Specification 1, 151, 781 and 1, 186, 718. The emulsions may comprise electron acceptors as described in Specifications 1, 186, 714, 1, 186, 715 and 1, 186, 716, compounds as described in Specification 1, 186, 718 and may be regular mono-disperse emulsions which are fogged as described in Specifications 1, 186, 711 and 1, 186, 712.
Patent GB-109111-A (GB)
Title: Improvements in Aerials for use in Wireless Telegraph or Telephone Systems.
Inventor: DUNNING CYRIL DURHAM JAMES
IPC: H01Q21/12
Filed: 1916-09-07
Abstract: 109,111. Dunning, C. D. J. Sept. 7, 1916. Aerials.-An aerial comprises a number of parallel horizontal wires a, b, c arranged in the direction of the distant station, the outer wires a, c serving for transmitting purposes only, and the centre wire b for receiving purposes only. The wires a, c are earthed through transmitting- apparatus h, and the wire b is earthed through receiving-apparatus n and is directly earthed at the far end by a lead q.
Patent GB-127815-A (GB)
Title: Improvements in or relating to Hydraulic Engines.
Inventor: SALLUSTO GAETANO
IPC: F03B17/00
Filed: 1919-05-21
Abstract: 127,815. Sallusto, G. May 21, 1919. Self-driving machines.-A vertical column of liquid leading from a reservoir communicates by a passage a, Fig. 1, and channels in a slide valve h with opposite ends of a cylinder c as shown. The exhaust passes through passages r, s controlled by a slide valve u and leading to a reservoir which is full of liquid. The valves are worked by eccentrics on a shaft driven by a crank and connecting- rod as shown. The head of liquid is stated to be maintained so that power is generated without expense. The passage a may be held open by a perforated plug held in place by oppositely-directed spring bolts.
Patent GB-1122971-A (GB)
Title: Spring seat
IPC: A47C7/40
Filed: 1966-03-23
Abstract: 1,122,971. Seats; resilient mountings for seats. H. C. FLINT. 23 March, 1966 [26 April, 1965], No. 12780/66. Headings A4J, A4M and A4U. In a car seat the back support 16 is pivoted to the seat frame 12 to move with the portion of the seat which deflects under the weight of the user while maintaining its angular relationship with the floor and comprises a border frame 68, 74 and resilient wire members 84, 88 secured to a lateral member 44 of the back frame. Link members 80, pivoted on a bracket 76, secured to the member 44, are welded to the seat frame 12 which is pivoted at 30 to a base member 10 secured to the floor. The ends 32 of a resilient support 14 are secured to the base member 10 by plates 38 to pivot about a point close to the rearward side of the member and the support 14 extends beneath the seat frame and is pivotally secured in a channel 48 of the member 44. Padding for the back support consists of a foam rubber cushion secured to or enclosed in a sleeve which is slid over and encloses the border frame and. wire members, and a seating cushion is supported by strips 92, 94 of bias cut cotton duck between layers of rubber. In modifications the support 14 is disconnectable from the channel so that the back rest can be folded forwardly over the seat, or the forward ends of the support 14 are secured to a plate having slots engaged by pins on the base member 10 for adjustment of the back rest to a reclining position.
Patent GB-1112544-A (GB)
Title: Improvements in or relating to conveyors
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B65G47/48
Filed: 1966-03-23
Abstract: 1,112,544. Conveyers. GEO. W. KING Ltd. 17 March, 1967 [23 March, 1966], No. 12900/66. Heading B7L. The trolley 10 of a floor tow-line conveyer, having a reciprocable bolt 13 engageable with dogs on an endless drive chain 14, is provided with route selector means comprising a peg 17 actuated by engaging a trackside member prior to each branch line as the trolley advances along the main track, so as to impart a movement to a pre-set selector element which is thereby brought successively to a position corresponding to the chosen branch line to effect the setting of a diverter 47 engaging the chain channel. In the embodiment shown, a lettered disc 21 is set to a fixed mark to correspond with the present position of the trolley, and a selector disc 22 has its index set to the chosen branch line indicated by the letters on the disc 21. The disc 22 is rotated through the shaft 23 by a ratchet wheel 25 actuated by reciprocating pawls 30 (or direct linkage) cam-driven by the bolt 13 which is rotated by each trackside member so as to deflect the diverter 47. The guide 47 is only retained diverted when a pin 29 on the ratchet wheel 25 cams a latch 52 to lock an arm 38, 40 deflected, since the diverter 47 is connected at 45 to the arm 38, 40. The branch tracks may not be chain-powered, in which case the disengager 65, 66, 68 may be locked for drive by abutting trolleys. In another embodiment, the selector disc is provided with depressible keys for branch line (or lines) selection, the depressed key (or keys) on rotation of the disc engaging a plunger which cams the latch to lock the arm, as before. In a further embodiment, a punched selector tape is driven by the shaft 23 past a spring plunger, so that when it enters a hole therein it is carried with the tape to move the latch, and let a lock bolt fall behind the latch.
Patent GB-665176-A (GB)
Title: Internal combustion engine poppet valves
IPC: F01L3/14
Filed: 1949-05-16
Abstract: 665,176. Valves. AUSTIN MOTOR CO., Ltd., and LINDSAY, F. E. May 5, 1950 [May 16, 1949], No. 12941/49. Class 7(vi) A poppet valve containing a cooling medium such as sodium in a sealed cavity 6 is provided with an inertia member comprising a free rod 5 which by its reciprocation causes circulation of the cooling medium in the cavity. In an aircooled engine the valve stem may also be provided with fins.
Patent GB-709935-A (GB)
Title: Improvements in or relating to alarm clocks
Inventor: JUNGHANS HELMUT
IPC: G04B23/03
Filed: 1951-05-31
Abstract: 709,935. Clocks. JUNGHANS AKT.- GES., GEB. May 31, 1951, No. 12992/51. Class 139 An alarm clock of the type in which a lever mounted on the alarm hammer shaft is engageable by an alarm stopping lever and is disengaged therefrom by a winding-up movement of the alarm spring key and in which the alarm mechanism is provided with a cam controlled alarm tripping and stopping click spring, is characterized in that locking means are provided which by operation of the alarm stopping lever after alarm release, move the alarm click spring into an alarm stopping position and lock it therein and is further characterized in that the said locking means are tripped to return into their inoperative position under the action of a return spring when the click spring controlling cam fully returns the click spring to its alarm stopping position. The alarm hammer is normally locked by the end 6a, Fig. 1, of a spring member 6 controlled by a cam 4 on the arbor 2. When a pin 5 on the arbor 2 enters the slot in the cam 4 the member 6 moves to the right, Fig. 1, and the alarm operates. Depression of a button 7 causes a latch member 9. Fig. 2. to engage a projection 11a of a lever 11 secured to the alarm hammer shaft and so stops the alarm. At the same time a member 12 is rocked to move the member 6 back to the left so that its end 6a again arrests the alarm. The member 6 is retained in this position by the latching engagement between a nose 6b 'of the member 6 and a slot 12d in 'the lever 12. The pin 5 is meanwhile riding up the slope of the slot in the cam 4. The alarm may then be wound so freeing, in known manner the lever 11 from the latch member 9. When the pin 5 reaches the top of the cam and so moves it further to the left the member 6 is moved by the bush 3a of the cam to disengage the nose 6b from the notch 12d.
Patent GB-1000796-A (GB)
Title: A photoresistance
IPC: H01L21/00
Filed: 1963-04-02
Abstract: A glass for use as the light-sensitive part of a photo-resistance having a resistivity of up to 1015 O  comprises arsenic, sulphur and halogen (chlorine, bromine or iodine).  The sulphur content, which may be equal to, or 15% by weight more than the arsenic content, is preferably within the range of 35-50% by weight of the glass, whereas the arsenic content is preferably within the range of 35-55% by weight and the halogen content preferably less than 25% weight.  The glass may be made by melting the components in vacuo or in the presence of an inert gas such as helium or nitrogen.  Batches in required proportions may be made from the following components: (a) As2S3, S and I; (b)  As2S3, S and Br; (c) As2S3, S and Cl; (d) As2S3, S and S2Cl2; (e)  As2S3, S2Cl2, Br and I.  Reference has been directed by the Comptroller to Specification 913,791
Patent GB-677941-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K21/46
Filed: 1950-05-24
Abstract: 677,941. Machines with permanent magnets. BRITISH THOMSON-HOUSTON CO., Ltd. May 24, 1950 [June 1, 1949], No. 13043/50. Class 35. A permanent magnet rotor for a motor or generator has a radially polarized magnet surrounded by a laminated sleeve carrying a squirrel cage and has damping bars at the sides of the magnet in the inter-polar regions linked by conductive end-plates. As shown, the copper bars 6 are united to end-members 8 to form a loop about the magnet 4 and the assembly is surrounded by a ring carrying a squirrel cage of copper or aluminium. In the case of a fourpole magnet the bars 6 are replaced by four bars in the inter-polar recesses. Specifications 536,661 and 677,942 are referred to.
Patent GB-579739-A (GB)
Title: Improvements in and relating to manufacture of incendiary mixtures
IPC: C06C15/00
Filed: 1942-09-16
Abstract: 579,739. Incendiary mixtures. KING, J. G., and CAWLEY, C. M. Sept. 16, 1942, No. 13059. [Class 9 (ii)] An incendiary mixture comprises sodium nitrate, a reducing agent which reacts vigorously with oxygen supplied by the sodium nitrate, and a fuel which controls the rate of burning of the mixture and adds to the total incendiary effect. The reducing agent is coke, active carbon, or charcoal, with or without silicon or calcium silicide. The fuel is a liquid, sol, gel or readily liquefiable solid (e.g. a solution of rubber in petrol or benzole), petroleum oil or paraffin wax. The proportion of sodium nitrate is greater than the proportion of reducing agent.
Patent GB-1492635-A (GB)
Title: Slewing ring for a railway vehicle bogie
IPC: B61F5/16
Filed: 1975-03-27
Abstract: 1492635 Centre bearings RKS 27 March 1975 [22 May 1974] 13061/75 Heading B7L A slewing ring or centre bearing between a railway vehicle body and bogie, provides adjustable damping, the ring comprising annular parts 1, 2 connected respectively to the body and bogie and each comprising surfaces of revolution 6, 7, 12 and 8, 9, 11 respectively which between them define an annular rectangular cross-section space accommodating therein angular segments 10 of single or different friction material(s) having apertures therein in which are disposed horizontal axis rollers or balls. As shown the part 2 is formed of parts 3, 4 secured together by screws 5 and the part 3 and the surface 12 are provided with a sealing gasket 13. In another embodiment, the two parts of a crossed roller type slewing ring are provided with opposed concave conical surfaces and convex conical surfaces respectively and the segments of friction material are of square cross-section.
Patent GB-551957-A (GB)
Title: Improvements in and relating to exploder devices for shot-firing
IPC: F42D1/045
Filed: 1941-10-10
Abstract: 551,957. Magneto generators: DAVIS & SON DERBY; Ltd., J., and DAWSON, C Oct. 10, 1941, No. 13074. [Class 35] A hand-driven magneto for shot-firing consists of a metal casing in three sections 11, 10, 12 ; the central section 10 contains the horse-shoe permanent magnets 25 and the shuttle armature on the, shaft 19 which has bearings 27 attached to the middle section 10 and bearings in the lower section which contains also the make and break, contacts: 32, 34.; The drive is effected. through the toothed quadrant 14 which has a bearing in the end cover 11 ; the teeth drive, against the return action of a spring 16, a toothed wheel 24 which, in turn, drives the gear wheel 20 through the intermediary of a ratchet and pawl so that the spring 16 can return the quadrant without driving the armature. The wheel 20 drives the toothed.wheel 18 on the armature shaft. Towards the end of its travel a cam formation on the underside of the quadrant depresses a pin 35 to bring the contacts 32, 34 together and complete the circuit via the connection 33 and the contacts 31 to one of the terminals of the magneto ; the other is connected to the contact 28 in the lower section 12.
Patent GB-1385814-A (GB)
Title: Transparency measuring system
IPC: G01J1/42
Filed: 1972-03-21
Abstract: 1385814 Photographic printers METEORSIEGEN APPARATEBAU PAUL SCHMECK GmbH 21 March 1972 [23 April 1971] 13094/72 Heading G2A In a photo-printing machine, the light spectrum incident upon a photo-sensitive means 12 after passing through the original 7 is determined by several filters 3 & 4 situated side by side and corresponding selectable apertures (or media having different absorptive capacities) arranged as shown, the aperture sizes being chosen according to the type of photo-printing paper used and the output of the photo-sensitive device being used to control the exposure time of the photo-printing paper. The device may incorporate a heat filter 11 to suppress fluorescence. Thus when a different photo-printing paper is used the device can be adapted to the spectral sensitivity of the "new" paper, by changing the aperture sizes. The beam of light used may be obtained by diverting a beam from the photo-printing light source.
Patent GB-781857-A (GB)
Title: Tuning means operable at ultra high frequencies
IPC: H03J5/02
Filed: 1954-05-05
Abstract: 781,857. Radio receiving apparatus. STANDARD COIL PRODUCTS CO., Inc. May 5, 1954 [June 3, 1953], No. 13142/54. Drawings to Specification. Class 40 (5). The subject-matter of this Specification is identical with that of Specifications 776,162 and 781,858, but the claims differ.
Patent GB-131669-A (GB)
IPC: C08J3/09
Abstract: 131,669. Dreyfus, H. July 24, 1918. Varnishes.-Acetyl acetone and ethylidene acetone are used as solvents for cellulose acetate in making dopes, solutions and compositions. Volatile solvents such as acetone, alcohol-benzene, or methyl acetate; substances to give plasticity such as benzyl alcohol, triacetin, triphenyl phosphate, or methyl phthalate and diluents may be added.
Patent GB-131889-A (GB)
IPC: D03D49/06
Abstract: 131,889. O'Brien, J. O., (Representative of Spannagel, C.), and Frost, E. Nov. 7, 1914, [Convention date]. Letting-off warps. - A loom warp-beam braking- device comprises ropes, straps, &c. 21 wound around the beam ends 20 and each connected at one end to a long weight 22 extending across the loom, the other end of each rope &c. being wound several times around rollers 23, 24, rotating on ball or roller bearings on stationary axes, and being connected to levers 25. The weight 22 is provided with auxiliary weights 22a, and stops 27 limit the upward movements of the levers 25.
Patent GB-217572-A (GB)
Title: Emulsion carrier for use in rontgen photography
IPC: G03C5/17
Filed: 1924-05-29
Abstract: 217,572. Stumpf, P. June 13, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Plates and films.-A sensitive plate for R÷ntgen-ray photography has the sensitive emulsion applied to a smooth white reflecting base, other than paper, which may be transparent. The base may be of material becoming luminous in the R÷ntgen-rays, and may consist of ground or iridescent glass, porcelain, or translucent white celluloid.