baber/WOPTO huggingface dataset:
Patent GB-509473-A (GB)
Title: Improvements in or relating to variable speed ratio power transmission
IPC: F16H47/07
Filed: 1938-01-13
Abstract: 509,473. Hydraulic transmission of power; variable-speed gearing. AUTO UNION AKT.- GES. Jan. 13, 1938, No. 1232. Convention date, Jan. 13, 1937. [Class 69 (ii)] [Also in Group XXIV] Variable speed ratio power transmission comprising in combination a hydrodynamic torque converter, a clutch and a mechanical overdrive gearing adapted to be used in conjunction with the hydrodynamic torque converter to produce a ratio intermediate of the ratio obtained by drive through the hydrodynamic torque converter only and the ratio obtained by direct drive through the clutch only, is provided with means for indicating optically or acoustically the altering of that critical speed ratio at which it is desirable to bring the overdrive gearing into operation. A transmission for a motor vehicle comprises, Fig. 1, a converter 1 and coupling 2, the impellers 5, 6 of which are driven by the input shaft 4, and the turbines 7, 8 of which drive a shaft 9 which drives an output shaft 16 through mechanical change speed gearing 3 yielding a direct drive and an overdrive. The hydraulic coupling may be replaced by a mechanical clutch. The shaft 4 drives, through flexible shafting 18b, the sun wheel 18d of an epicyclic gear; the shaft 9 drives, through flexible shafting 18c, the annulus 18a, 19 of the epicyclic; the spider 20 carrying the planet pinions drives a shaft 20a, whereby a disc 21 takes up an angular position dependent on the difference in speed of the shafts 4, 9. The shaft 4 also drives a shaft 21a whereby a hand 22 takes up an angular position dependent on the speed of the shaft 4. With suitable adjustment. members 23, 23 on the disc 21 and hand 22 respectively will always coincide whenever the critical ratio is reached, although the angular position at which coincidence takes place may vary according to operating conditions. The members 23, 23 may be contacts so that at coincidence circuits are completed to light a lamp or actuate a sound-signal; additionally the gear changing may be effected automatically at coincidence of the contacts. The epicyclic gearing may be replaced by hydraulic differential gear. Specifications 489,396 and 503,319 are referred to.
Patent GB-446030-A (GB)
Title: Improvements in or relating to tipping wagons
IPC: B60P1/24
Filed: 1935-01-15
Abstract: 446,030. Tipping vehicles. HUMPHREYS, E. W., 35, Victoria Road, Rhyl, Flintshire. Jan. 15, 1935, No. 1317. [Class 108 (i)] Vehicles the bodies of which are tipped, when released, by gravity are provided with means at the rear of the body whereby on forward movement of the vehicle the body is returned to normal travelling position. The body b is pivoted at or about the axis of the wheel c so that it will overbalance when loaded to tip by gravity when the catches d are released, manipulation of the load or appropriate pressure by the hand being applied if necessary. To return the body levers f are released from catches g to allow them to contact with the ground whereupon forward movement of the vehicle causes the rear end of the vehicle body to lift and return to its normal position in which it is adapted to be secured by the catches d. Short chains j and a long heavy chain k are provided for securement between the body and chassis according to whether a partial or full tipping respectively is desired. In place of the levers f skids may be employed or according to the Provisional Specification chains connecting the body and the front wheel are adapted to return the body.
Patent GB-202048-A (GB)
Title: Improvements in and relating to checking apparatus for telephone calls
IPC: H04M15/30
Filed: 1922-05-12
Abstract: 202,048. O. & S. Oilless Bearing Co., Ltd., and Wiggins, R. B. May 12, 1922. Metering; telephones, supporting.-A removable support for a telephone receiver comprises two members c, d, one of which d is pivoted and spring-controlled and co-operates with a locking lever e in such a way that the receiver cannot be replaced until the lever is depressed, this depression being automatic upon actuation of a metering-key f. The Figure shows a bottom view of the arrangement. A part k on the member d engages with a. projection j on the locking-lever e which is pressed upwards by a spring i, so that, when the member d is moved inwards by the spring n on removal of the receiver, it is locked until the lever is depressed. The lever e has a pin m engaged by the metering-key f, but it may be operated independently by means of a thumbpiece g. The arrangement may be put out of action by inserting a locking-member between the metering-key and the locking-lever.
Patent GB-462202-A (GB)
Title: Improvements in and relating to the manufacture of wetting, washing, dispersing and like agents
Filed: 1936-01-15
Abstract: Wetting, washing, dispersing, and foaming agents are obtained by halogenating aliphatic monohydric alcohols having from 10--20 carbon atoms and sulphonating the products at above 50 DEG  C. for several hours with an anhydrous sulphonating agent.  The hydroxy group may be protected during the halogenation by esterifying with phosphoric acid or a weak acid such as silicic acid. Chlorides of metals, e.g. of iron, zinc, boron, iodine, sulphur or phosphorus may be used as halogen carriers, or sunlight may be employed.  The sulphonation replaces the halogens present by sulphonic groups and esterifies the hydroxy group.  In examples: (1) carnauba wax alcohols are chlorinated, the slight amount of hydrogen halide ester formed saponified by means of a soda lye, and the product after purification by distillation, sulphonated with oleum; the paste obtained by neutralizing may be bleached with hypochlorite or hydrogen peroxide; (2) cetylalcohol is chlorinated and sulphonated with monohydrate; (3) alcohols obtained by the oxidation of soft paraffin are esterified with boric acid, chlorinated and then sulphonated.ALSO:Dispersing-agents are obtained by halogenating aliphatic monohydric alcohols having from 10--20 carbon atoms and sulphonating the products at about 50 DEG  C. for several hours with an anhydrous sulphonating agent.  The hydroxy group may be protected during the halogenation by esterifying with phosphoric acid of a weak acid such as silicic acid.  The sulphonation replaces the halogens present by sulphonic groups and esterifies the hydroxy group.  In examples, (1) carnauba wax alcohols are chlorinated, the slight amount of hydrogen halide ester formed saponified by means of a soda lye, and the product after purification by distillation sulphonated with oleum; the paste obtained by neutralizing may be bleached with hypochlorite or hydrogen peroxide; (2) cetylalcohol is chlorinated, and then sulphonated with monohydrate; (3) alcohols obtained by the oxidation of soft paraffin are esterified with boric acid, chlorinated and then sulphonated.
Patent GB-1044448-A (GB)
Title: Process for the preparation of mixed enol and silanol ethers
IPC: C07F7/18
Filed: 1965-01-12
Abstract: Mixed enol and silanol ethers are prepared by heating, in the presence of a nickel metal catalyst, an organic compound containing an enolizable carbonyl group, but free from other reactive, functional groups, with a silicon compound of formula HSiR1113, where R111 are organic radicals inert under the reaction conditions, and, if necessary to prevent reduction of the carbon-to-carbon double bonds in the reaction product by the liberated hydrogen, carrying out the reaction in the presence of a de-activator for the catalyst.  In particular, the enols of formula RCH = C(OH)R11 are used in all the examples, where R is alkyl of up to 4 carbon atoms, acetyl or ethoxycarbonyl, R11 is hydrogen or alkyl up to 4 carbon atoms or R and R11 together represent -(CH2)3- or -(CH2)4- or -(CH2)3.CH(CH3)-. A organic diluent, inert, under the reaction conditions, such as a benzene hydrocarbon or decalin may also be used.  The compounds (1-methyl-2-ethoxycarbonyl - vinyl)oxy diethoxy methyl silane and (methyl-2-acetyl-vinyl)oxydiethoxy methyl silane are claimed per se. The following ketones may be used:-saturated aliphatic monoketones, e.g. acetone, enolizable aliphatic polyketones, e.g. acetylacetone, aromatic ketones, e.g. acetophenone, cycloalkyl ketones, e.g. methyl cyclohexyl ketone, cyclic ketones, e.g. cyclopentanone, ester ketones, e.g. ethyl acetoacetate, and aldehydes, e.g. acetaldehyde, R111 may be alkyl, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, aralkyloxy and their substituted derivatives; preferably alkyl or alkoxy groups of 1 to 4 carbon atoms.  The nickel catalyst is preferably produced by reduction of a nickel salt with a silane, e.g. triethyl silane on nickel sulphide or chloride. Suitable de-activating agents include:-thiophenols, carbon disulphide and dialkylsulphides. The examples prepare substituted vinyloxy, propenyloxy, butenyloxy, cyclopentenyloxy and cyclohexenyloxy silane. In most cases a minor amount of the saturated products from hydrogenation is produced. Hexaethyldisiloxane is also obtained in Examples 2 and 5.
Patent GB-538365-A (GB)
Title: Improvements in or relating to compound microscopes and lens systems therefor
IPC: G02B25/00
Filed: 1940-01-23
Abstract: 538,365. Lenses. KAPELLA, Ltd., and WARMISHAM, A. Jan. 23, 1940, No. 1391. [Class 97 (i)] An ocular system for a compound microscope comprises a convergent field lens, and a convergent eye-lens system which has a focal length between 115 per cent. and 140 per cent. of the equivalent focal length of the complete system and an axial thickness not less than 60 per cent. thereof : the eye-lens system may comprise one or more lenses, and its exit pupil may be in front of its rear surface or behind it at a distance not greater than 15 per cent. of the equivalent focal length of the complete system. The objective may be as described in Specification 444,350 and, as shown, the ocular system may comprise a field lens E<SP>1</SP> adjacent the primary image plane C of the objective, and an eye-lens system E<SP>2</SP> comprising two convergent compound members separated by an air gap. Complete data for three examples are set out in the Specification.
Patent GB-535960-A (GB)
Title: Improvements in receptacles for soap
IPC: A47K5/02
Filed: 1940-01-24
Abstract: 535,960. Soap-holders. VICKERS, H. Jan. 24, 1940, No. 1445. [Class 131] A soap-holder comprises a single strip 1 of perforated sheet material in U or V-form to hold the soap on edge. Apertured lugs 4 or hooks may be provided for suspending it. The sheet material may be metal, wiremesh, celluloid or synthetic resin.
Patent GB-1414894-A (GB)
Title: Electro-optical devices
IPC: H01L31/14
Filed: 1973-01-11
Abstract: 1414894 Modulating light PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Jan 1973 [14 Jan 1972] 1532/73 Heading H4F In an optic relay of the type comprising a variably birefringent electro-optic plate assembly 4, 5 having an electrode 2 on one surface and an electrode 8 spaced from the other surface, and a photosensitive layer 7 arranged with respect to the assembly 4, 5 and electrode 8 so that when it is exposed to an optical image 9 and a potential difference V is applied between the electrodes the plate assembly exhibits a spatially varying birefringence which is determined by the optical image and which is read out using polarized light 6, the capacitance C of the plate assembly, which is in series with the capacitance C<SP>1</SP> between the assembly and the electrode 8, gives rise to a uniform potential difference thereacross even when the photosensitive layer is not illuminated, so that the image eventually read out includes a uniform non-zero background illumination. The prior art method of erasing the birefringent pattern in the plate assembly is to illuminate layer 7 uniformly and apply zero volts between the electrodes. It is now proposed to apply a voltage V<SP>1</SP> between the electrodes while erasing, where V<SP>1</SP> has the opposite polarity to the recording potential difference V. In particular if V<SP>1</SP> = - V<SP>c1</SP> c , application of the potential difference V in a subsequent imaging step causes the background uniform potential difference across the assembly 4, 5, and hence the background illumination of the image read out, to have zero value. As shown, assembly 4, 5 includes a KD*P plate 4 and a dielectric mirror 5. Layer 7 is a photoconductor. Alternatively, as described in Specification 1,387,721, layer 7 may be a photocathode in which case electrode 8 is intermediate layer 7 and plate 4.
Patent GB-337687-A (GB)
Title: A nozzle for expanding and cooling hot gases
IPC: F01D9/02
Filed: 1930-01-16
Abstract: 337,687. Akt.-Ges. Brown, Boveri, et Cie. Jan. 16, 1929, [Convention date]. Nozzles.-A nozzle for expanding and cooling hot gases, particularly for use in gas turbines, consists of two parts. The first part 1 is of the diverging type and converts pressure into velocity without much cooling, the outside having lagging 2. The second part 3 is waterjacketed and here the gas is cooled without much loss of velocity. The steam generated in the jacket is used in a steam turbine or other engine. It is stated that if the gas passes through the part 3 with the velocity of sound this part need be only of short length to secure the desired cooling. The nozzle is formed of chromium, tungsten, molybdenum &c. alloys or of ceramic substances.
Patent GB-763773-A (GB)
Title: Improvements in or relating to frequency control arrangements for frequency-shift telegraph systems
IPC: H04L27/16
Filed: 1955-01-18
Abstract: 763,773. Automatic frequency control systems. STANDARD TELEPHONES & CABLES, Ltd. (Standard Telephones & Cables Pty., Ltd.). Jan. 18, 1955, No. 1559/55. Class 38 (4). In a receiver for frequency shift telegraphy, the discriminator output from a frequency changer 3 is applied through a low-pass filter 9 to a gate circuit 8 comprising two diodes 12, 13 or rectifiers connected in parallel opposition and biased as shown just beyond cut-off so that frequency deviations of the mean frequency of the local oscillator 4 beyond a certain amount produce a positive or negative output, during marks and spaces, through one or other of the diodes or rectifiers to a smoothing circuit 21, 22 and frequency control circuit 11 stabilizing the oscillator frequency. During a constant mark or space condition the bias 23, 24 (Fig. 2A) moreover prevents drift of the intermediate frequency exceeding the limit corresponding to the other condition (space or mark respectively). The bias circuits permit adjustment to suit different frequency shifts.
Patent GB-580009-A (GB)
Title: Improvements in or relating to cavity resonators
IPC: H01J23/18
Filed: 1944-01-28
Abstract: 580,009. Discharge apparatus. WESTERN ELECTRIC CO., Inc. Jan. 28, 1944, No. 1673. Convention date, Feb. 13, 1943. [Classes 39 (i) and 40 (iii)] In a variable frequency cavity resonator 6, movable walls 2 and 3 are so shaped that a frequency adjusting movement thereof causes a change in aplurality of the dimensions of the resonator. In the example shown, the movable walls are provided with recesses. When they approach closely the top and bottom parts of the resonator space pass out of action and a resonator space is formed contracted in both length and height. An electron beam is passed through the resonator from a gun 15 and large discs 13 and 14 connected with electrodes in the discharge tube are clamped to the wall of resonator 6.
Patent GB-138083-A (GB)
Title: Process for the manufacture of detonating caps for mining and military purposes
IPC: C06C7/00
Filed: 1920-01-19
Abstract: 138,083. Friederich, W. July 27, 1918, [Convention date]. Explosives.-Consists in the use of lead trinitroresorcinate above a layer of lead azide over a detonator charge of nitro compounds such as nitropentaerythrite and tetranitromethylaniline
Patent GB-895060-A (GB)
Title: Rotary earth boring drilling machine
IPC: E21B19/084
Filed: 1960-01-19
Abstract: 895,060. Portable drilling-machines. JOY MANUFACTURING CO. Jan. 19, 1960 [Jan. 26, 1959], No. 1867/60. Class 83 (3). A drilling machine comprises an elongated member 12 carrying a drill and mounted for rotation and axial movement by a mechanism comprising an elongated coaxial driving member 9, means 22 interconnecting the members, rotatable means 66, 67 carried by the driving member 9 to impart axial movement to the interconnecting means, and drive means including a first rotating portion 51 for rotating the interconnecting means 22, a second portion 65 for rotating the rotatable means, and means for causing a differential rotation of the second portion. An hydraulic jack 6 moves a frame 2 angularly to adjust a guide 1 having a front work-engaging steady 5. The drill 12 rotates with, but is axially movable relatively to, the rotary member 9 consisting of heads 10, 11 connected by five tubes 18, 20 and rotating in supports 7 mounted on the guide 1. The guide 1 also carries two hydraulic motors 14, 15 to rotate and feed the drill. The hollow drill 12 screws into the cross-head 22 and is guided by a bush 30 in a bracket 29. The central tube 18 of the member 9 is slotted to receive the crosshead 22 projecting into two of the tubes 20. The head 22 is moved by chains 33 passing over rear driving sprockets 34 and front idling sprockets 35 mounted by pivoted arms 36 on an equalizing yoke 38 adjusted by a screwed connection 40. The sprockets 34 are rotated by the reversible motor 15 through gears 72, 73, 74, 76, chain gearing 60, 62 and gears 65, 66, 67. The member 9 is rotated by the motor 14 through chain gearing 49, 51 and is connected to the chain gearing 60 by way of the differential gears 53 and 57.
Patent GB-745377-A (GB)
Title: Improvements in or relating to centrifugal separators
Inventor: TAIT WILLIAM HENRY
IPC: B04B5/00
Filed: 1953-01-22
Abstract: 745,377. Centrifugal separators. GLACIER METAL CO., Ltd. Jan. 7, 1954 [Jan. 22, 1953; Feb. 13, 1953], Nos. 1873/53 and 4109/53. Class 23. A centrifugal separator, Fig. 1, comprises a rotor 1 which has inlet passages 3 for the oil to be treated, outlet pipes 5 terminating in reaction nozzles 6 and partition means 2. In a modification, Fig. 3 (not shown), the partition is carried by the rotor cover. In a second modification, Fig. 5, concentric partitions 11, 12, 13 are provided which are positioned by guide members 14, 15 provided on the bottom of the member 1 and the cover 7 respectively. At least three of the members 14 have integral extensions 14a for positioning the partitions 13. Each member 13, 12 is provided with at least three ribs 13a, 12a, see Fig. 6 (not shown), for positioning the members 12, 11 respectively. The partitions 11, 12, 13 are also provided with dirt arresting flanges 16. In a final modification, Fig. 7, concentric partitions are provided with vertically extending ribs and diverted portions 18; the pipes 5 being disposed between the spindle 9 and the innermost partition. Specification 668,766 is referred to.
Patent GB-207424-A (GB)
Title: Improvements in or relating to resilient wheels
IPC: B60B9/26
Filed: 1923-01-22
Abstract: 207,424. Close, L. H. Jan. 22, 1923. Spring wheels. - A spring wheel comprises an endless metal rim, composed of one or more series of superposed bands 10, 11, 12, supported on a series of semi-elliptical spring metal spokes the outer ends of which are clamped to the rim so as to permit the rim to travel through the clamps. The spokes may consist of several laminations; the middle band of each spoke 4 is formed with an eye at each end. The inner end is secured between flanges 2, on the hub 1 bv a bolt 3. The outer end is secured to the rim by a bolt 5, which is passed through lugs 23 of a saddle-piece B, hook-like clamping bars C and the eye of the spring 4. The bars C have an overturned end which engages in a circumferential groove 19 on the outer band of the rim and a threaded end 14 on which clamping nuts 13 are fitted to secure the whole. A rubber tyre 26 and a band 25 secured thereto are notched to register with the clamps C which extend radially beyond the outer band of the rim.
Patent GB-284645-A (GB)
Title: Improvements in the manufacture of link belting
IPC: F16G1/24
Filed: 1928-01-23
Abstract: 284,645. Robertson, C. J. W. Feb. 2, 1927, [Convention date]. Belts.-In linked belts of the kind built up frcm links of leather or other material interconnected by rivets serving as pivot elements, each line of links 5 is stamped from a strip of leather &c., an unsevered portion 6 of small width and thickness being left between each pair of links. The portions 6 are of such substance, preferably less than half the thickness of the strip, that they break during use. The use of such stamped strips facilitates assembly with the rivets. According to the Specification as open to inspection under Sect. 91 (3) (a) the portions 6 need not break during use of the belt. This subject-matter does not appear in the Specification as accepted.
Patent GB-100572-A (GB)
Title: Improvements in or relating to Wrist Watches.
Inventor: HUDAVER PETER
IPC: A44C5/20
Filed: 1916-02-12
Abstract: 100,572. Hudaver, P. Feb. 12, 1916. Watch bracelets. - The bracelet consists of two flexible straps A, B of non-rusting metal hinged at G, H to the loops of the watch F. One strap A has a T-shaped stud D adapted to be passed through one of a series of holes in the other strap and given a quarter-turn. The overlapping ends of the straps are held together by a loop C.
Patent GB-775143-A (GB)
Title: Improvements in or relating to the purification of water
IPC: C02F1/52
Filed: 1955-01-25
Abstract: To remove fluorides dissolved therein, water is subjected to treatment with magnesium oxide or magnesium hydroxide, and ammonium chloride.  The reagents may be added singly or together. The water may be boiled with the reagents and may be subsequently filtered. Materials containing magnesium oxide or hydroxide, or materials producing them under the conditions of the process may be used.  The invention may be used in addition to conventional processes for purification of water.
Patent GB-161724-A (GB)
Title: Easy starter and combined extra air valve for internal combustion engines
IPC: F02N99/00
Filed: 1920-01-24
Abstract: 161,724. Jones, W. M. Jan. 24, 1920. Surface carburettors.- A supplementary carburettor for starting internal-combustion engines consists of a petrol cup a containing an absorbent p saturated with petrol and covered by gauze g. Air is admitted through inlets h regulated by turning a cover c, and the outlet to the induction pipe is provided with a valve v which is normally closed by engine suction and is held open at starting by means of a cam k. After starting, the device may serve to admit additional air to the induction pipe.