baber/WOPTO huggingface dataset:
Patent GB-1481420-A (GB)
Title: Digital telecommunications apparatus
IPC: H03M3/04
Filed: 1975-03-25
Abstract: 1481420 Delta modulation systems DEFENCE SECRETARY OF STATE FOR 25 March 1975 [2 April 1974] 14666/74 Heading H3H The invention relates to a decoder for a telecommunication system in which (n-1) successive samples of a speech signal are coded as a frame comprising a series of n bits of which (n - 1) repsesent the polarities of respective samples and the other is a delta modulation bit representing the mean amplitude of the samples, n is greater than 3, e.g. 12. In the decoder, Fig. 3, the incoming digital signal 28 is distributed to 12 sample-and-hold circuits 46 corresponding to respective different time-slots of a 12 bit frame. Mean level detectors 47 average the signals received over half a second in respective time-slots, only that detector 47 associated with the time-slot in which the amplitude bit occurs producing a non-zero output which is used to route the amplitude bit to a delta demodulator 57 to control the amplitude of the next 11 pulses produced by a circuit 58, the polarities of these pulses being controlled by the 11 polarity bits. Circuitry 29 recovers clock signals from the incoming digital pulse train 28. In a modification, Fig. 4 (not shown), 12 phase-displaced clock signals are generated, the correct one being selected in accordance with the outputs of the mean level detectors (74) to route the amplitude bit to the delta demodulator (57). In the encoder, Fig. 1, a band-pass filtered speech signal is rectified 5 and its average (5 millisecond time constant) is fed to a delta modulator 6 to derive the amplitude bit. A hard-clipping differential amplifier 3 with integrating feedback derives the polarity bits, 11 of which are output by multiplexer 7 for each amplitude bit.
Patent GB-743546-A (GB)
Title: Improvements in or relating to counting and checking apparatus associated with sack delivery chutes
IPC: B65B57/20
Filed: 1953-05-27
Abstract: 743,546. Counting-apparatus. BUHLER BROS. May 27, 1953 [May 27, 1952], No. 14783/53. Class 106 (1). [Also in Group XXX] A silo for filled sacks comprises several storage shoots 1, 2 arranged helically, for example, within each other, a barrier 8 or 9, a counting flap 5 or 6 and a brake 7 at each shoot outlet, and a counting mechanism 15 common to all the shoots for controlling colsure of the barriers. As shown, the flaps 5, 6 are adapted to close contacts 13 to actuate the counter 15. The barrier 8 or 9 of the shoot selected for delivery is raised by operating a corresponding lever 11, and is held by engagement of a catch 22 in a notched disc 21 fast with the lever 11. After delivery of a preset number of sacks, contacts 16 of the counter 15 close and energize a magnet 17 to release the catch 22, whereupon the barrier 8 or 9 falls to stop further delivery. The brakes 7 are adjustable by means of controls 20.
Patent GB-627654-A (GB)
Title: Improvements in and connected with tooth picks
IPC: A47G21/12
Filed: 1947-06-05
Abstract: A toothpick is made of a stick of Balsa wood of triangular cross-section and is impregnated with a medicated preparation containing either menthol or thymol or both.  Iodine may also be added.  To improve the taste saccharin, glycerin, peppermint, spearmint, oil of cloves or vanillin may also be used.  A quantity of toothpicks may be constructed in magazine form, adjacent toothpicks being joined along their longitudinal edges.
Patent GB-261296-A (GB)
Title: Improvements in or relating to apparatus for use in playing games of skill
IPC: A63F5/04
Filed: 1926-06-14
Abstract: 261,296. Murphy, T. June 14, 1926. Roulette. - In apparatus employing a rotatable disc 4 and a surrounding series of pockets 6<a> to receive balls fed on to the disc and thrown off by centrifugal action, a closed housing for the disc and pockets and a receptacle 13 to receive balls from the pockets are carried by a stand, the parts being connected so that access to the interior of the housing and receptacle by an unauthorized person is prevented. A ring 6 containing the pockets 6<a> is secured to a cylindrical ring 1 and serves to clamp a glass covering disc 2. The disc 4 is rotated by a handle 5, through which balls are fed, a baffle 4a opposite an orifice 3<c> preventing premature movement of the balls. A movable apertured disc 8 with a handle 8<b> lets the balls fall from the pockets 6<a> through holes in a disc 11, which is secured to the ring 1 and to the receptacle 13, the screws 12, 15 and the nuts and bolts 18 securing a surrounding table 16 to legs 17 being hidden in a recess 16<b> in the table. Screws 20 connect the legs and the receptacle, the nuts being placed within the receptacle. The lower end of the receptacle is closed by a cover 23 locked by a bolt 24 passing through a loop 22a in a strap 22. Screws 21 passing through a ring 19 carried by the legs clamp the base of the receptacle. Scoring markers 25 are placed round the ring 1. Specification 211,283 is referred to.
Patent GB-579885-A (GB)
Title: Improvements in fittings for fluorescent lamps
IPC: F21V23/00
Filed: 1942-10-26
Abstract: 579,885. Tubular lamp fittings. GENERAL ELECTRIC CO., Ltd., PHILLIPS, L. E. A., and DURRANT, D. W. Oct. 26, 1942, No. 14995. [Classes 75 (iii) and 75 (iv)] A lighting fitting for fluorescent tubular lamps comprises a casing 1 extending the whole length of the lamp 3 and having its base formed partly or wholly by a detachable reflector 2 to which the lamp is secured by clips 4, the circuit elements 6 such as a stabilizing impedance and starting switch being mounted on a plate 5 which may be swung downwards about its pivots 7 on the removal of the reflector and the operation of catches 8. The reflector may be secured to the casing 1 by wing-nuts 9 at both ends or by a wing nut at one end and hinge at the other. The fitting may be suspended from the ceiling by chains attached to a rod 16 to T-pieces 21 slidable in a channel 19 extending along the top of the casing 1.
Patent GB-311737-A (GB)
Title: Manufacture of hydrogen
IPC: C01B3/16
Filed: 1929-05-14
Abstract: 311,737. Lazote, Inc., (Assignees of Larson, A. T.). May 15, 1928, [Convention date]. Hydrogen, catalytic production of; catalytic agents, preparation of.-In the production of hydrogen from mixtures of carbon monoxide and steam a catalyst is employed containing copper in free or chemically combined state and an oxide of zinc, tungsten, molybdenum, cerium, vanadium, manganese, uranium, chromium and magnesium, which oxide mav be in combination with one or more other elements. The ratio of steam to carbon monoxide is preferably at least 1.5 : 1 and the gas mixture may first be purified to remove sulphur and other catalyst poisons. The temperature used is 300-600‹ C. and the pressure employed may be atmospheric, but is preferably 10-100 atmospheres. A commercial gas containing at least 20 per cent of carbon monoxide by volume may be employed and may be obtained by oxidation of carbonaceous fuel or as a byeproduct in the production of metals or metallic carbides from metallic oxides and coke. The catalyst may be prepared by triturating, fusing or precipitating a mixture of copper oxide with the other oxides, or by igniting a mixture of the metal salts or by preparing chemical compounds of copper with one or more of the oxides. The catalyst before use is preferably treated with hydrogen at 100-300‹ C. to reduce the copper or the reduction may be effected in situ by the reaction mixture of steam and carbon monoxide. The catalyst may be formed into tablets or granules. In examples, copper oxide mixed with 5 per cent of chromium oxide or with 15 per cent of zinc oxide is melted, cooled and crushed; to an equi-molecular mixture of copper and magnesium nitrates in dilute solution a dilute solution of ammonia is added and the precipitate washed, dried and formed into pellets; to a dilute solution containing equal molecular proportions of copper, manganese anl chromium nitrates dilute ammonia solution is added and the precipitate washed, dried at about 100‹ C. and broken into fragments of suitable size; to a dilute solution containing one molecular proportion of copper sulphate and two molecular proportions of manganese sulphate a solution containing three molecular proportions of ammonium chromate is added and the precipitation completed by adding ammonia, the precipitate being washed, dried at about 100‹ C. and crushed to suitable size.
Patent GB-333605-A (GB)
Title: Improvements in and relating to axle-bearings
IPC: B61F17/12
Filed: 1929-05-14
Abstract: 333,605. Matthews, E. r. May 14, 1929. Channels in vehicleaxle bearings. - The lower part b<2> of a twopiece brass b<1>, b<2> for an axle is set back as at i to facilitate return of lubricant to the sump. The upper part b<1> has axial grooves h which conduct lubricant to the end collar a<1> on the axle.
Patent GB-1419846-A (GB)
Title: Yarn treating apparatus
IPC: D02G1/16
Filed: 1973-03-29
Abstract: 1419846 Treating and finishing yarns FIBER INDUSTRIES Inc 29 March 1973 [30 March 1972] 15152/73 Heading D1F In fluid jet apparatus for treating e.g. bulking, splicing or interlacings, twisted or untwisted multifilamentary yarn or tow continuously passing therethrough, differential thermal expansion of components thereof viz. a housing, a jet member carried by the housing and having a yarn inlet therein, and a separate outlet fitting also carried by the housing, is compensated for and leakage of fluid thereby prevented by the use of forceloaded flexible sealing means e.g. a diaphragm or bellows, so as to maintain sealing contact between at least two components at all temperatures. Thus in the jet shown, conventional seals or gaskets 21, 33, are fitted between the ends of a jet member 20 and complementary surfaces of a housing 12 and an outlet fitting 16 whereat a bulking chamber 32 is formed and to which hot fluid under pressure is supplied through conduit 26, opening 24, chamber 17 and injection passages 38. A flexible diaphragm 50 having at least one relatively soft heat-deformable surface is loaded by domed washers 46 which are compressed by screwing cap 14 onto the housing 12. In another embodiment, Fig. 2 (not shown) the outlet fitting is fixed relative to the housing and the jet member is slidably spring-loaded towards it through a flexible diaphragm jet member and housing.
Patent GB-662435-A (GB)
Title: A new or improved carton and blank therefor
Inventor: ALLBRIGHT FREDERIC JOB
IPC: B65D5/20
Filed: 1948-06-04
Abstract: 662,435. Cartons or boxes. ALLBRIGHT, F. J. June 2, 1949 [June 4, 1948], No. 15191/48. Class 18. A carton is made from a one-piece blank, Fig. 1, cut and scored to provide a base 1, side walls 2, 3, 4, 5, top flap portions 6 and an outer top flap portion 7 having a tab 10 with an enlarged head, e.g. of arrowhead form, for insertion in a slit 12 formed at a line of weakening between the side wall 2 and an extension 11, the slit having a straight central portion to accommodate the neck 16 of the tab and downwardly turned ends to provide locking means underlying the head of the tab in the final assembly, Fig. 4. The walls 3, 5, may have inwardly foldable, notched, interlocking extensions 8. Specification 20040/12, [Class 18], is referred to.
Patent GB-1187244-A (GB)
Title: Improvements in and relating to Nuclear Reactor Fuel Material
Inventor: DAVIS FRED WEYMOUTH
IPC: G21C3/62
Filed: 1967-04-03
Abstract: 1,187,244. Nuclear fuel. BABCOCK & WILCOX CO. 3 April, 1967 [1 April, 1966], No. 15213/67. Heading G6C. In a process for converting a colloidal sol of a fertile material into calcined gel nuclear fuel particles, fissile material and burnable poison material are added at a stage before the final calcination. For example, a colloidal ThO 2  solution is mixed with an aqueous solution of uranyl nitrate (containing U 235 ) and an aqueous solution of boric acid (containing B10) and the mixture is dried to a gel which is calcined. Alternatively, ThO 2  gel particles are first prepared from the colloidal ThO 2  solution and these particles are allowed to fall through an aqueous solution of uranyl nitrate and boric acid and then through washing and drying liquids. Colloidal sols of the fissile material and of the boron compound may be used instead of aqueous solutions and reference is made to the use of non-aqueous solutions. Reference is also made to fertile material containing U 238  and fissile material containing Pu or U 223 ; the burnable poison may contain boron in elemental, oxide, acid, salt, or organic compound form or may contain lanthanides or hafnium. Specification 1,187,243 is referred to.
Patent GB-688011-A (GB)
Title: Control arrangement for jet-propulsion
IPC: B64C15/02
Filed: 1951-06-27
Abstract: 688,011. Self-propelled missiles. WENGER, A. June 27, 1951 [June 28, 19501, No. 15282/51. Class 9(ii) [Also in Group XXXIII] A control arrangement for jet propulsion is characterized by a rudder located partially behind the outlet opening of the jet pipe and surrounding the latter over a part of its circumference, means being provided for adjusting the rudder around the longitudinal axis of the jet pipe and for adjusting it axially so that the portion of the rudder located behind said opening varies in length. The extremity of the jet pipe 2, Fig. 2, is fitted with a sleeve 3 formed with a part cylindrical extension 4 and is capable of rotary and longitudinal movement with respect to the axis of the jet pipe. Two annular grooves are formed on the outer surface of the member 3 one of which accommodates a peg 6 attached to an axially movable rod 7 and the other of which carries a gear ring 8 meshing with a pinion 9 driven by a shaft 11 formed with an axially slidable connection 10. In an alternative arrangement of the member 3, 4, Fig. 3 (not shown), it is mounted in such a manner that fore and aft movement of the sleeve 3 causes pivotal movement of the part 4 which is pivoted about a transverse axis arranged normal to the axis of the jet pipe.
Patent GB-443357-A (GB)
Title: Improvements relating to ammunition projectile fuzes
IPC: F42C15/24
Filed: 1934-05-22
Abstract: 443,357. Projectile fuzes. TIUKKA, M. M., Vihtavuori, Finland. May 22, 1934, No. 15341. [Class 9 (i)] Relates to projectile fuzes of the kind in which an explosive capsule 3, after release by a safety device is moved by a spring 9 out of a safety chamber A and into the operative position in a thimble 10 According to the invention, the movement of the capsule is delayed by a hydraulic dashpot device, a part of the capsule act ing as the piston of the dashpot As shown, the thimble 10 contain: a liquid 11 normally confined by a diaphragm 12. This diaphragn is broken by the capsule before the capsule penetrates into the liquid. The capsule is locked in the safe position by balls 5 and sleeves 6, 7 in a known manner. The percussion fuze may be of the instantaneous or time lag type.
Patent GB-1002113-A (GB)
Title: Process for the halogenation of polymers and copolymers of butadiene
IPC: C08C19/12
Filed: 1964-04-14
Abstract: A homopolymer of butadiene and/or a copolymer thereof with a monovinyl compound is halogenated by bringing a solution of the polymer or copolymer in an inert solvent into contact with at least one elementary chlorine, bromine or iodine and dissolving in the polymer or copolymer solution at least one of hydrogen chloride, hydrogen bromide or hydrogen iodide. The hydrogen halide may be dissolved in the solution-which may be saturated therewith-before contact with the elementary halogen. Carbon tetrachloride is a specified solvent and the process may be continuous.
Patent GB-184618-A (GB)
Title: An improved head-covering
IPC: A42B1/04
Filed: 1921-06-03
Abstract: 184,618. Dunn, L. S. June 3,1921. Mob-caps; caps.- A head-covering for ladies comprises a crown portion of net material with a rim of ribbon b or other material having the ends arranged at the rear and long enough to tie and hang down the back. According to the Provisional Specification, the rear of the rim may have an elastic insertion.
Patent GB-1429307-A (GB)
Title: Control systems for engines
IPC: G01D5/24
Filed: 1972-04-04
Abstract: 1429307 Automatic control of speed CAV Ltd 21 March 1973 [4 April 1972] 15366/72 Heading G3R In a system for controlling an engine a transducer used for signalling an engine operating parameter derives from an oscillator an A.C. signal whose amplitude is dependent on the parameter, which signal is applied to a capacitor forming the input to the engine control circuit through a switching device which is enabled in synchronism with the oscillator for supplying the capacitor only when the A.C. signal has stabilized. The arrangement described for controlling the fuel supplied to an engine is similar to that disclosed in Specifications 1416861 and 1416862 and the transducer (a variable coupling transformer) is connected to the control rod of the injector pump. As shown the squarewave oscillator 21 supplies the primary winding 22 of the transformer and also monostable circuit 31. The secondary winding 23 is provided with damping resistors 26, 36 and is connected over a length of cable with switch 27, capacitor 28 and amplifier 15 which form part of the input of control circuit 14. In operation monostable 31 is switched to its unstable state at the start of a squarewave and after a delay, which allows the oscillations caused by the length of cable used to be damped, reverts to its stable state to switch over monostable circuit 32 and switch on device 27 which is a field effect or other transistor. When monostable 32 reverts the device 27 is switched off. In a modification a capacitive transducer is used to signal the position of the pump control rod, Fig. 2 (not shown).
Patent GB-287749-A (GB)
Title: Hydraulic support for the upward and downward displacement of any arm-chairs and operation tables
IPC: A61G15/02
Filed: 1927-06-09
Abstract: 287,749. Letz, E. June 9, 1927. Apparatus; presses, cylinder-and-piston; shockpreventing in.-Hydraulic apparatus for raising and lowering chairs and operation tables comprises a fixed piston 6, having an aperture 18 communicating with a pedal-operated cock 11, and a cylinder 4 movable in a movable guide cylinder 3 mounted in a member 1 rotatable in a base 2. A pin 17 enters the aperture 18 to cushion the down stroke. The wall of the cylinder 4 is lubricated through passages 20 from a trough carried by the piston, the trough obtaining the lubricant from a store channel carried by the cylinder.
Patent GB-949379-A (GB)
Title: Improvements in power supply arrangements for electronic equipment
Inventor: MILLERSHIP ROBERT JOHN
IPC: H03B5/36
Filed: 1960-05-02
Abstract: 949,379. Transistor supply circuits. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. April 21, 1961 [May 2, 1960], No. 15392/60. Heading H3T. One of two transistor circuits connected in series across a source of supply is shunted by a Zener diode to provide a current-path for the other when the supply is first switched on. A crystal oscillator circuit T1 which feeds a class B amplifier T2 is connected in series with the amplifier across the D.C. supply, the D.C. circuits being decoupled by a filter circuit C1, C2, CH. As no current passes through the amplifier until the oscillator provides an input signal, a Zener diode ZD is connected across the amplifier to provide the initial D.C. current for the oscillator. Zener diodes may be connected also across the oscillator and across any other circuits which are in series with the two shown.
Patent GB-1530201-A (GB)
Title: Process for the preparation of aminoglycoside antibiotics and intermediates therefor
IPC: A61P31/04
Filed: 1976-04-14
Abstract: The kanamycin derivatives of formula I, in which R is an amino or hydroxyl group and R<1> is an alkyl group optionally substituted by hydroxyl and/or amino groups, are obtained by alkylation of the compounds of formula II, in which R<2> is H or a benzyl group, R<3> is an acyl-protecting group and R<4> is a hydroxyl group or an NHR<3> group, followed by the removal of the R<3> groups and the benzyl group R<2>, where appropriate. The compounds of formula II are new intermediates which are obtained by acylation of a kanamycin A, B or a 3-N-benzylkanamycin A, protected on all its amino functional groups, followed by the removal of the protecting groups and the intramolecular migration of the acyl group from oxygen to nitrogen. <IMAGE>
Patent GB-160845-A (GB)
Title: Improvements relating to inking apparatus for printing machines
IPC: B41F31/28
Filed: 1918-09-23
Abstract: 160,845. Mascord, G. W. Sept. 23, 1918. Inking-apparatus.-In inking-apparatus of the kind in which ink is sprayed on to a cylinder by a number of air nozzles directed towards the cylinder and across the ends of corresponding ink nozzles, each of the air and ink nozzles is under individual control by such means as a screwed spindle valve. Air nozzles k mounted within a common air tube i extending parallel to a cylinder d are directed towards the cylinder and across corresponding conical orifices in a plate g, secured directly over the vertical parts of L- shaped ink outlet passages e communicating with the interior of an ink receptacle a, and controlled bv screwed spindles f, f<1> mounted in staggered relationship in the side of the receptacle and provided with cruciform ends adjacent to valve faces n engaging seats in the ends of the passages e. The air nozzles consist of outer casings k provided with conical orifices p flared at their extremities and regulated by conical-ended screw spindles l having intermediate reduced parts l<1> providing an annular space communicating through holes k<3> with the interior of the air tube i, which is adjustable for inclination of the nozzles k within end carrying rings m by screws m<1>, and may be raised or lowered by adjustment of studs j<1> by which the tube is suspended from brackets j secured to the side of the ink receptacle a. The apparatus may be mounted by brackets a<1> on a rod b or other suitable part of the machine frame, and may be adjustable horizontally by screws a<2> and for inclination by screws c, through a rear part of the bracket engaging the usual ink fountain support or other suitable part. An inclined projecting channel h collects and drains away the surplus ink. Each set of valve spindles e, f and f<1> may be adjusted simultaneously by a rotating spindle geared thereto. The ink and air may be fed so as to provide a simultaneous pulsating discharge.
Patent GB-423556-A (GB)
Title: Improvements in printers' blankets
IPC: B41N10/02
Filed: 1934-05-24
Abstract: In a printers' blanket of the type comprising a fibrous base and an outer coating of, or containing rubber, which is surfaced or ground in the usual manner, the outer coating is obtained directly from an aqueous dispersion of or containing rubber and is vulcanized to the base.  Natural or vulcanized latex or a concentrated latex (e.g. of 60 per cent total solids content) may be used.  A preferred latex composition comprises the following materials in stated proportions: rubber, as latex of 65,7 per cent solids content, formalin, water, potassium hydroxide, crimson antimony, sulphur, whiting, red iron oxide, sodium isopropyl-naphthalene sulphonate, glue, heptaldehyde-aniline condensate, acetone-diphenylamine condensate and solvent naphtha; and the coatings are dried at 90 DEG  C. and vulcanized at 135 DEG  C. Specification 381,986, [Group VIII], is referred to.