baber/WOPTO huggingface dataset:
Patent GB-492880-A (GB)
Title: Improvements relating to vehicle brakes
IPC: F16D65/46
Filed: 1938-04-12
Abstract: 492,880. Brake-shoe adjusting gear. ROWLAND, T. C. E., and PARKER, H. April 12, 1938, No. 11153. Addition to 456,238. [Class 103 (i)] The brake-shoe adjusting-gear described in the parent Specification is manual instead of automatic, the worm-wheel 11 being adapted to be turned by a manually operated worm 12 which may be operated through apertures in the brake back plate, brake drum or both.
Patent GB-317133-A (GB)
Title: Improvements in the treatment of wool and other animal fibres or textiles containing them
IPC: D06M11/30
Filed: 1929-05-08
Abstract: 317,133. Wilkinson, S. W., and Brown, R. B. May 8, 1929. Fibres, treating ; yarns, treating with liquids and gases.-Wool and other animal fibres, or fabrics made therefrom, are subjected to the action of ozone in order to prevent shrinkage or felting of the material when subsequently washed, dyed or similarly treated. The ozone treatment is a variant of the ozonisation of fibres or fabrics to increase their dye-absorbing power described in Specifications 242,027 and 289,578, [both in Class 15 (ii), Dyeing processes &c. for], the ozonisation in the present case being discontinued at an earlier stage before any appreciable increase in dye-absorbing power is observed. Soluble salts of vanadium or manganese, and peroxides of hydrogen, barium, sodium, potassium or calcium may be added to assist the oxidising process. In one example the material is wetted in water containing ammonia and hydrogen peroxide, is then hydro-extracted and suspended in a chamber through which is passed air containing 1 part in 1,000 of ozone. Alternatively the material may be in a solution and the gas passed therethrough. The necessary duration of the process is ascertained by shrinkage tests on samples of the material treated.
Patent GB-407547-A (GB)
Title: Oil-control piston rings
IPC: F16J9/20
Filed: 1933-04-18
Abstract: 407,547. Piston rings. AUBERT, G., Route de Montelimar, Valreas, Vaucluse, France. April 18, 1933, Nos. 11254 and 11265. Convention dates, April 14, 1932 and Sept. 13, 1932. [Class 122 (i).] An oil scraper ring is provided with an upper groove 2 of triangular section and a lower groove 6 connected to the back of the ring by ducts 7, 8.
Patent GB-472502-A (GB)
Title: Improvements in multi-band radio receivers
IPC: H03J3/10
Filed: 1936-04-20
Abstract: 472,502. Wireless receiving circuits. HAZELTINE CORPORATION. April 20, 1936, No. 11254. Convention date, May 25, 1935. [Class 40 (v)] In a radio receiver adapted for operation over a plurality of wavebands, the L.C. ratios for the several bands are of the same order of magnitude, the effectiveness of the tuning element being so varied with the band selected that the full range of each band is substantially covered by the full movement of the tuning element. Fig. 3 shows a superheterodyne receiver suitable for operation over six wavebands, the lowest of which covers the general broadcast band. The radio-frequency inductances 14a ... 14f are coupled to the aerial by the three coupling coils 111, 112, 113 and are each tuned by the variable condenser 20 when switched into circuit by the selector switches 70, 74. These switches are associated with banks of semi-fixed condensers 73b ... 73f and fixed condensers 77b ... 77f, the latter being selectively connected in parallel with condenser 20 and the former in series with this parallel combination across the corresponding inductance 4. The values of the condensers 73, 77 are so chosen that for each waveband the effective value of condenser 20 is reduced to that which gives full scale tuning on each waveband. The intervalve coupling between the high - frequency amplifier 17 and the oscillator-modulator 24 is exactly similar, inductances 26a ... 26f being tuned by condenser 30 and condenser banks 83 ... 87 selected by switches 80, 84. The switches 74, 84 and the condensers 77, 87 may be dispensed with by connecting the condensers 73, 83 across their appropriate inductances and tuning to the mid-frequency of the respective bands ; the general broadcast band circuits 14, 26 are tuned by condensers 20, 30, Fig. 2 (not shown). In another modification, one inductance 14a and condenser 20 are employed for the broadcast band and one inductance only for all the remaining high-frequency bands, tuned by condenser 20, condensers such as 73, 77 and switches 70, 74 of Fig. 3 being employed to effect the necessary variation in effective capacity of 20 for the several wavebands, Fig. 4 (not shown). A further modification is shown in Fig. 6, in which the relatively large condenser 20 is used for the general broadcast band, with inductance 14a, the small condenser 107 being used for the higher frequency bands with the bank of compensating condensers 108. The condensers 107, 20 may be combined in one assembly and unicontrolled. The condenser 107 may be dispensed with and the condenser 20 used also for the higher frequency bands by connecting a small condenser in series therewith by the switch controlling the high-frequency inductances, Fig. 7 (not shown).
Patent GB-1026230-A (GB)
Title: Improvements relating to the separation of waxy hydrocarbons from oils by flotation
Inventor: TRITSMANS PAUL ALBERT
IPC: C10G73/06
Filed: 1965-03-17
Abstract: Oils are dewaxed by a process involving cooling followed by flotation in which the cooling is effected by injecting an immiscible liquid of greater specific gravity than the oil and cooled to below the flotation temperature, preferably at least 10 DEG  C. below. Suitable liquids are aqueous solutions of calcium chloride, sodium chloride, sodium hydroxide, alcohol, acetone, furfural, glycerol or ethylene glycol and may be recycled.  Other details are as described in Specifications 1,022,429 and 1,022,430.
Patent GB-236521-A (GB)
Title: Improvements in matrix releasing and delivering means for typographical machines
IPC: B41B11/18
Filed: 1925-04-30
Abstract: 236,521. Intertype Corporation, (Assignees of Homans, T. S.). July 7. 1924, [Convention date]. Assembling matrices; magazines; escapements. - In machines having superposed magazines, the escapement-actuating reeds of the upper magazine are arranged in the planes of the partitions of that part of the assembler - entrance which conducts the matrices from the lower magazine, so that increase in the width of the assembler-front and of the magazines is avoided. The assemblerentrance 4 is branched so as to conduct matrices from the upper and lower magazines M, M<1>, thelower branch of the entrance being provided with partitions 10, 11, which are located between groups of the matrix channels in the magazine. The escapements of the lower magazine are operated by reeds 17, and those of the uppar magazine by reeds 21, which pass through the lower branch of the assembler-entrance. The reeds 21 are provided with cranked or offset portions 22 so as to form groups, the members of each group lying in one plane, and being in alignment with, and forming continuations of, the partitions 10, 11. The two sets of reeds 17, 21 are actuated alternatively from a common keyboard through reeds 25, which can be shifted by means of a pivoted frame 26 provided with a hand-lever 28.
Patent GB-493884-A (GB)
Title: Improvements in the manufacture of higher alcohols
IPC: C07C11/08
Filed: 1937-04-21
Abstract: Alcohols of four carbon atoms or more are obtained by mixing the corresponding olefine, in direct contact with a saturated hydrocarbon, normally liquid or liquid under the reaction conditions and capable of functioning as a solvent for the alcohols produced, with a catalyst consisting of one of the following aqueous solutions: 5-55 per cent sulphuric or phosphoric acid, 0,5-15 per cent hydrochloric acid, 0,5-15 per cent zinc, aluminium or cadmium chloride, or 1-40 per cent ammonium chloride, at a temperature of from 30 DEG  C. to below 300 DEG  C., suitably 150 DEG  C., and a pressure not exceeding 300 lb. per sq. in., e.g. 50 lb. per sq. in., separating the catalyst layer from the solvent layer, and removing the alcohol formed from the solvent.  When mixtures normally containing olefines and saturated hydrocarbons are used, e.g. the C4 cut, there may be no need to add extra saturated hydrocarbon.  When liquid solvents are added, <PICT:0493884/IV/1> the volume is normally from 50 to 95 per cent of that of the starting material in liquid form.  As shown, the reaction mixture, in which the olefine may be in gaseous or preferably liquid form, is fed through line 1 to heating coil 3, the saturated hydrocarbon when added passing in by line 2. The heated mixture of olefines and saturated hydrocarbons passes up tower 4 fitted with plates 5 each carrying a pool of, say, sulphuric acid and to which water is introduced by pipe 7.  A heating jacket or coils may be provided. The reaction material passes into drum 9, gases separating through pipe 10.  The liquid flows through heating coil 12 to distillation tower 13.  Steam may be passed in through pipe 14, a condensing coil 15 being provided.  The distillate flows through condenser 16 to vessel 17.  The hydrocarbon solvent is recirculated by pump 19. If, say, a light naphtha is used as the solvent, it is distilled from the alcohol, the latter being recovered at the base of the tower 13.  Pure olefines such as butylene or amylene, or mixtures obtained by cracking hydrocarbon oils, may be used.  Examples relate to the treatment of C4 hydrocarbons containing 11 per cent isobutylene.  Specification 453,147 is referred to.  The Specification as open to inspection under Sect. 91 refers also to the use of 10 per cent acetic acid solution as a catalyst. This subject-matter does not appear in the Specification as accepted.
Patent GB-914849-A (GB)
Title: A protective arrangement for protecting a semi-conductor rectifying element
IPC: H02M7/06
Filed: 1961-03-29
Abstract: 914,849. Rectifying. BROWN, BOVERI & CO. Ltd. March 29, 1961 [April 2, 1960], No. 11460/61. Class 38 (2). To protect a semi-conductor rectifying element during the blocking period an inductance is connected in series with the element. As shown, the inductance is formed by an iron ring on the supply lead. A capacitor 3 or a series combination of a capacitor and a resistor may shunt the rectifying element/inductance combination.
Patent GB-1531993-A (GB)
Title: Detection of sonic waves and devices therefor
IPC: G01H1/00
Filed: 1976-03-17
Abstract: 1531993 Ultrasonic coupling probe IMPERIAL CHEMICAL INDUSTRIES Ltd 17 March 1976 [19 March 1975] 11461/75 Heading H4J Sonic vibrations are coupled to a transducer 9 by a probe 3 which is pressed against the transducer by a first member 5 which extends parallel the probe and has an end from which sonic vibrations are reflected to produce standing waves in the first member, the first member being supported at a node of the vibrations by a second member 6 mounted on the transducer support. As described the probe is a thin pointed rod of stainless steel soldered at its mid point to a threaded brass bush 4 by which the probe is adjustably mounted to the cylindrical first member 5. The probe and cylindrical member 5 are tuned to 40kHz, the operating frequency, and the mid point node of the member 5 is connected to a cylindrical support member 6, possibly by a threaded connection to allow for adjustment to the nodal point. The support 6 is attached to the transducer support and the transducer has a sonic vibration conducting housing, contacted by the probe, to protect the transducer from mechanical damage. The assembly is enclosed in a nylon housing 1. The transducer output can be mixed with a sine wave of such frequency as to produce an audible signal which can be fed to an earphone or loudspeaker.
Patent GB-648760-A (GB)
Title: Improvements in or relating to electric circuit arrangements for measuring time intervals
IPC: G04F10/10
Filed: 1947-04-30
Abstract: 648,760. Short time interval measuring. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 30, 1947, No. 11530. Convention date, April 19, 1945. [Class 37] [Also in Group XL (c)] A circuit arrangement for measuring the time interval between the leading edges of two co-existent pulses of a first and second repetitive series of pulses impressed on the circuit input terminals, generates a direct-current output voltage having an amplitude which is a predetermined function of the time interval. A triode 1 is connected to receive on its anode a first voltage wave e<SP>1</SP>1 consisting of pulses A-A1 superimposed on a steady voltage B and has a second voltage wave e<SP>1</SP>2 consisting of pulses C-C1 applied to its grid. Under the conditions illustrated in Fig. 2, i.e. when the pulses are not co-existent, the valve conducts slightly during each pulse C-C1, and a condenser 3 connected in the cathode circuit acquires a steady potential E just less than the steady anode potential B. The valve remains cut-off between pulses C-C1 due to the grid current flow which occurs during each pulse C-C1 and by means of which condenser 5 and resistance 4 develop a bias voltage D. When the pulses are co-existent, Fig. 3, the valve remains cut-off until time t1, whereupon the rise in grid potential occurring during an anode pulse conditions the valve to conduct heavily and allow condenser 3 to acquire a potential dependent on the instantaneous anode potential at time t1. With the pulse A-A1 sloping as shown, the potential acquired decreases as the time interval t0-t1 increases, and may do so according to a linear, exponential or other function dependent on the shape given to the top portion of pulse A-A1. A potential increasing with the interval t0-t1 is obtained by sloping the anode pulse A-A1 upwards to the right and making the grid pulse narrower than the anode pulse.
Patent GB-891266-A (GB)
Title: Method for the transformation of luminous energy into mechanical energy
Inventor: BAUMGARTNER PIERRE
IPC: F03G6/00
Filed: 1960-04-01
Abstract: 891,266. Venetian blinds. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. April 1, 1960 [April 3, 1959], No. 11666/60. Class 20(3) [Also in Group XXVI] A luminous intensity regulator comprises space enclosing means which absorb luminous radiation to an insignificant degree, which space contains nitrosyl chloride, associated with at least one movable part and connected mechanically to the control means of a regulable obturating device. The strips 62 of a Venetian blind supported by flexible vertical strips 63, 64 are inclined in accordance with light intensity by means of a transparent reservoir 1 filled with gaseous nitrosyl chloride which is photochemically dissociated under the effect of light to increase in volume and pressure to move a piston 3 in a cylinder 2 connected to the reservoir. The piston operates a rod 4, pivoted lever 60 and a flexible cable 68 connected over a pulley 65 to the strips 63, 64 and stretched by a weight 67.
Patent GB-377701-A (GB)
Title: Improvements in or relating to steering mechanism for motor vehicles
IPC: B62D7/00
Filed: 1931-04-21
Abstract: 377,701. Motor vehicle steering gear. LJUNGSTROM, B., 83, Linnegatan, Stockholm. April 21, 1931, No. 11789. Convention date, March 5. [Class 79 (v).] In motor vehicles having two separatelysteered wheels 1 the steering mechanism comprises a single hand-wheel 12 actuating two steering shafts 20 or corresponding motion transmitting members arranged substantially longitudinally of the vehicle and wholly supported by the vehicle body or frame, these shafts each actuating the corresponding steering wheel through an articulated connection. Space is thus left between the steering shafts for the engine and other parts. The steering shafts may be inclined towards one another as shown, or they may be parallel, and the hand wheel 12 may be on one of the shafts or between them or on either side of both shafts. In the construction shown the shafts 20 are provided at their upper ends with bevel gears 19 meshing with a bevel wheel 18 fixed on the shaft 17 of the hand-wheel 12. At the lower end each shaft 20 has a steering gear 6 operating an arm 8 connected to the corresponding steering swivel by parallel links 9, 10, the steering swivels being pivoted at 3 on independent arms 4 pivoted to the frame at 5. The springing movements of the wheels 1 cause lateral movements of the gears 6 ; to permit these movements the gears are movable in guides 11 and the upper ends of the tubes 13 enclosing the shafts 12 can oscillate about centres 24, the tubes being fixed to casings 21 having cylindrical surfaces 23a contacting with corresponding surfaces on a fixed casing 15 supporting the hand-wheel spindle. 17. Modifications are described in which the shafts 20 are parallel and are geared together at their upper ends by (1) two transverse parallel shafts and worm gearing, and (2) rope or chain gearing having tensioning means for the rope or chain.
Patent GB-1002371-A (GB)
Title: Apparatus for bending glass sheets
Inventor: CARSON FRANK JACOB
IPC: B60J1/02
Filed: 1962-03-28
Abstract: <PICT:1002371/C1/1> <PICT:1002371/C1/2> <PICT:1002371/C1/3> To bend glass sheets 13, particularly for vehicle rear lights, generally concavely without any convexity about one axis and generally convexly about a second axis substantially at right angles to the first axis, a skeleton bending mould 20 has side rails 28, 29 with the shaping surfaces 34 generally convex in elevation and end rails 32, 33 with the shaping surfaces 34 generally concave in elevation so that a heated glass sheet 13a sags down into conformity therewith.  The sheet 13a is supported on the centre points of side rails 28, 29 and is slightly held by screws 40 in upstanding lugs 42 secured to an outer rail 26.  The outer rail 26 is joined to the inner rail 25 by webs 27, the rail 25 including the side and end rails 28, 29 and 32, 33 with joining sections 30, 31.
Patent GB-768026-A (GB)
Title: Improvements relating to blading for use in elastic fluid flow apparatus, such as turbines
Inventor: ELCE NORMAN
IPC: F01D5/14
Filed: 1954-04-23
Abstract: 768,026. Wind tunnels. METROPOLITANVICKERS ELECTRICAL CO., Ltd. April 13, 1955 [April 23, 1954], No. 11831/54. Class 4. [Also in Group XXVI] In a wind tunnel the corner vanes are bounded at their ends by substantially flat and parallel end walls, the outlet ends of the vanes being additionally curved inwardly adjacent the end walls. The tendency towards the formation of vortices caused by the reduction of air velocity adjacent the end walls of the passage due to air friction is thereby counteracted. The velocity of air flow is rendered substantially uniform over the height of the passage. In the embodiment shown relating to a turbine blade, the trailing portion of the vane 2 is given greater curvature at the portions 4 and 5 adjacent the blade tip and root. The blade profiles at the tip AA, mid-section BB and root CC respectively are shown in Figs. 2, 3 and 4.
Patent GB-1012656-A (GB)
Title: Formation of moulds
Inventor: KEY HARRY
IPC: B22C9/12
Filed: 1964-03-20
Abstract: 1,012,656. Moulding machines. ROSE, DOWNS THOMPSON Ltd. June 1, 1964 [March 20, 1964], No. 11831/64. Heading B3F. In a method of making a mould the platen 27 supporting the flask or core box 35 is mounted on the machine frame 14 which also carries a perforated plate 24 and means are provided to move the platen and plate towards each other to compress the sand in the flask. As the compaction of the sand takes place, CO 2  is admitted through perforations in the plate 24. Switching means 33, 34 control the admission of CO 2  as the two plates come together and whilst the sand is under compression the frame 14 is rotated through 180 degrees and the platen is vibrated to loosen the pattern in the sand. The platen 27 is then raised lifting the pattern from the mould at the same time automatically switching off the supply of CO 2 .
Patent GB-576882-A (GB)
Title: Improvement in and relating to aromatic amine-aldehyde resinous products
IPC: C08K5/11
Filed: 1943-07-21
Abstract: Di - 2 - chlorethyl phthalate, di - 2 - chlorethyl maleate and di-2-chlorethyl succinate are prepared by heating a mixture of ethylene chlorhydrin and phthalic &c. anhydride, in molecular proportions and in the presence of p-toluene sulphonic acid as catalyst.  The esters are used as combined plasticising, wetting and hardening agents for aromatic-amine formaldehyde resins. Specification 576,837 is referred to.
Patent GB-332248-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/02
Filed: 1929-04-17
Abstract: 332,248. Spalding & Bros. (British), Ltd., A. G., (Reach, W. F.). April 17, 1929. Divided on 314,978, under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 8, 1929. Golf clubs.-A method of assembling metal golfclub heads and shafts consists in affixing a sleeve 3 of rubber or other shock-absorbing material to a shaft 2 and forcing the shaft into the socket 1<a> with a driving fit which alone provides a torsional connection, the use of an adhesive being dispensed with. The lower end of the shaft and the bore of the socket may be cylindrical or correspondingly tapered. The sleeve is preferably vulcanized to the shaft. Specifications 314,856 and 314,978 are refered to.
Patent GB-1349876-A (GB)
Title: Apparatus for testing the seals of foil-sealed containers
IPC: G01M3/08
Filed: 1971-04-28
Abstract: 1349876 Testing containers for leaks SCHWEIZERISCHE ALUMINIUM A G 28 April 1971 [29 May 1970] 11946/71 Heading G1S A food container 40 covered by a foil or sheet lid 43 is placed in a cavity on a mould 5 in a glass topped liquid container so that the container sits upon a rubber sheet 14 and is penetrated by a hollow air needle 9. The top of the mould is closed by a cover 19 pivoted by a pin 22 to a lever 24 operated by a locking handle 29, the cover supporting the foil top. Air under pressure is then passed into the container via the needle 9 so that the unsupported seam alone of the foil lid and container is subjected to pressure, the other parts being supported by the mould and cover 19. If air escapes through the seam and channels 49 then bubbles are formed in the liquid in the containing vessel.
Patent GB-605774-A (GB)
Title: Improvements in or relating to acoustic alarm devices
IPC: G10K9/04
Filed: 1941-09-18
Abstract: 605,774. Acoustic warning devices. TELEFONAKTIEBOLAGET L. M. ERICSSON. Sept. 18, 1941, No. 11998. Convention date. Feb. 13, 1940. [Class 13] In a fluid-operated device in which a diaphragm 4 during vibration periodically closes the supply passage 5, a pressure chamber 10 provided on the opposite side of the diaphragm is charged through a central aperture 8 until it is closed by a fixed or adjustable plug 7 when the supply passage is closed and then discharges through one or more apertures 9, Fig. 1, in the diaphragm into the outlet passage 11 leading to the horn 2 to allow the diaphragm to regain its normal position. In a modification, the discharge apertures 9 are normally closed by a ring secured to the cover so that the pressure in the chamber 10 rises more rapidly. In another construction, Fig. 8, the chamber 10 discharges instead through a valve 13 in the cover, the operation of the device being started by the opening of this valve by an electromagnet 14 or otherwise. In a modification, the plug 7 is linked with the valve 13 and is brought into its operative position in relation to the diaphragm when the valve is opened.
Patent GB-640494-A (GB)
Title: Plasticisation of polymeric hydrocarbons
IPC: C08L65/04
Filed: 1948-05-03
Abstract: Polymeric p-phenylene ethylene, prepared by the pyrolysis of p-xylene, is plasticized by aromatic hydrocarbons having a B.P. above 200 DEG  C., e.g. acenaphthene, anthracene, diphenyl and naphthalene, to give film- and filament-forming, coating or moulding compositions. The plasticizers may be incorporated by heat, or by use of a low boiling solvent, e.g. ethanol, or mechanically, e.g. using an internal mixer, multiroll mill or calender.