baber/WOPTO huggingface dataset:
Patent GB-330450-A (GB)
Title: Improvements in and relating to the production of chocolate
IPC: A23G1/00
Filed: 1929-07-30
Abstract: 330,450. Bollmann, H., and Rewald, B. July 8, 1929, [Convention date]. Cocoa preparations. - By incorporating with chocolates a small amount of animal or vegetable lecithin, the product is stated to have improved qualities with regard to its capacity for being stored. A vegetable lecithin such as Soya bean is dissolved in cocoa butter heated to 60‹ C., this solution being then incorporated with chocolate in proportions such that the finished product contains from 0.1 to 0.5 per cent of lecithin. Specifications 260,108, [Class 49, Food &c.], and 262,239 are referred to.
Patent GB-1112529-A (GB)
Title: Change-speed gear having a trapezoidal belt
IPC: F16H9/14
Filed: 1966-05-25
Abstract: 1,112,529. Expanding-pulley gearing. E. ORTMANS. 25 May, 1966 [25 May, 1965; 4 April, 1966], No. 23485/66. Heading F2D. A variable-speed gear for incorporation in a textile flyer frame consists of a V-belt 8 connecting a constant diameter driving pulley 1 and an expanding-wheel driven pulley 18, the pulley 1 being carried by a frame 5 loaded to maintain a constant belt tension irrespective of the angle of lap over the driven pulley. As shown, frame 5 pivots about the main drive-shaft 6 and carries an end weight 7 and is also subjected to loading springs 14 disposed in tubes 15 connected between the frame and an abutment 15a. The spring-loaded cone discs of driven pulley 18 are moved in opposite directions to vary the drive ratio by screwed sleeves 19, 20 rotatable by pinions 23, 24 meshing pinions 25, 26 on an auxiliary drive-shaft 27 carrying a pulley 34, or cam (41), Figs. 5 and 6 (not shown), loaded by a cable 30 and weight 32, and operated by the main control cable 35. Oscillations are damped by a cable 42 connected at one end to frame 5 and at the other to a pulley 45 mounted on the auxiliary shaft 27.
Patent GB-922360-A (GB)
Title: Method of producing a dialkoxyborane and diborane
Inventor: HUFF GEORGE FRANKLIN
IPC: C01B6/10
Filed: 1961-06-29
Abstract: Diborane is made by reacting, at a temperature of 30 DEG  to 270 DEG C., a trialkyl borate B(OR)3 with a hydride MHx or M[BHn(OR)4-n]x, where R is a hydrocarbon radical having 1 to 4 carbon atoms, M is an alkali or alkaline earth metal, x is the valence of M and n is an integer of 1 to 4, in a molar proportion of trialkyl borate to hydride of not less than the stoichiometric amount required to produce a dialkoxyborane and recovering diborane formed by disproportionation of the dialkoxyborane.  Diborane is directly obtained as the product by subjecting the reaction mixture to distillation at total reflux for all components other than diborane present therein in a vertical zone comprising a distillation column of sufficient height to concentrate substantially pure dialkoxyborane at the top of the column, the dialkoxyborane formed being disproportionated in situ to produce diborane which is recovered at the top of the column.  Sodium hydride and trimethyl borate are the preferred reactants.ALSO:A dialkoxyborane is made by reacting, at a temperature of 30 DEG  to 270 DEG C., a trialkyl borate B(OR)3 with a hydride compound MHx or M[BHn(OR)(4-n]x, where R is a hydrocarbon radical having 1 to 4 carbon atoms, M is an alkali or alkaline earth metal, x is the valence of M, and n is an integer having a value of 1 to 4, in a molar proportion of trialkyl borate to hydride of not less than the stoichiometric amount required to produce a dialkoxyborane, and continuously removing and recovering the dialkoxyborane as it is formed.  An organic solvent boiling higher than dimethoxyborane may be used.  Preferably a slurry of sodium hydride and a saturated hydrocarbon is continuously reacted with trimethyl borate in the central portion of a distillation column operating at partial reflux, a by-product consisting essentially of sodium tetramethoxyborate, trimethyl borate and hydrocarbon is continuously removed from the bottom and a product containing dimethoxyborane is continuously removed overhead.  A detailed example is given.
Patent GB-1307954-A (GB)
Title: Safety valves for preventing the propagation of fire in ventilation ducts
IPC: A62C2/14
Filed: 1971-04-19
Abstract: 1307954 Valves SOC D'ETUDES ET DE RECHERCHES DE VENTILATION ET D'AERAULIQUE 19 April 1971 [13 March 1970] 23557/71 Heading F2V [Also in Division A5] A safety valve, designed for use in ventilation ducts, comprises a spring steel shutter 2, Fig. 1, anchored relative to the housing 1 by a fastener 3, and a steel wire 5 carrying two fuse elements 6. The steel wire retains the shutter in the prestressed deformed state shown until the temperature of the air flow 7 exceeds a predetermined value whereat the fuse elements 6 melt and the shutter attains the closed position shown in broken lines. Engagement of the shutter with the housing seat 4 prevents further flow through the housing. In Fig. 3 (not shown), a respective shutter is arranged at each end of the housing so that when closed they seal the housing which thereby acts as an efficient heat insulator between the ducting. The shutter may be slightly bowed in its closed position, Fig. 2 (not shown). In another embodiment, Fig. 4 (not shown), one or a pair of shutters is anchored by a common fastener at its lower end instead of its central portion.
Patent GB-834429-A (GB)
Title: Improvements in or relating to skips for shaft winding installations
Inventor: BECKMANN HERBERT
IPC: B66B17/10
Filed: 1956-07-31
Abstract: 834,429. Skip hoists. SKIP COMPAGNIE G.m.b.H. July 31,1956, No. 23633/56. Class 78 (4). A skip for a shaft winding installation has platforms 3, 4 and 5, 6 for men or trucks respectively above and below the material container 1. The platforms 3, 4 may be hinged back against the side wall as indicated by chain-dotted lines, thus enabling the container 1 to be loaded through a side entrance above at least one of the platforms 3, 4, and reducing the overall length of the skip. The platforms 5, 6 may be on a separate frame attached by chains or resilient means to the main frame 8. An installation in which one such skip ascends while another descends is so arranged that the upper platforms of one skip are loading while the lower platforms of the other are unloading, and vice versa.
Patent GB-989725-A (GB)
Title: Light-responsive automatic position stabilising
Inventor: METCALF ERIC
IPC: G05D3/12
Filed: 1961-06-30
Abstract: 989, 725. Automatic position control. BENDIX ELECTRONICS Ltd. May 8, 1962 [June 30,1961],No. 23646/61. Heading G3R. A beam of light is maintained in a desired position relative to two mutually perpendicular axes by pivoted means which automatically deflect the beam relative to the two axes if the illumination of pairs of photo-cells associated with the two axes become unbalanced. In Fig. 1 a beam of light from a source 10 is reflected by a convex, concave or plane mirror 12 so that it passes through an aperture 11. A portion of the light, extracted by a partial reflector 13, falls on a detector 14 comprising two pairs of photo-transistors (not shown). One pair of photo-transistors controls electromagnets 15 which move mirror so as to maintain the beam in a correct position about one axis for passing through the aperture, while another pair of electromagnets (not shown), associated with the other pair of photo-transistors, correct the position of the beam about an axis perpendicular to the first axis. Each pair of photo-transistors is connected in series to form a potential divider across a supply circuit so that deviations in the position of the beam vary the voltages at the junctions between them. These voltages are amplified by a transistor circuits including cathode-coupled pairs of transistors which respectively energize the electromagnets. The Specification also refers to use of a detector arranged round the aperture, use of thermionic valve or magnetic amplifiers, and adjustment of mirror 12 by a hydraulic or other motor.
Patent GB-750517-A (GB)
Title: Improvements in or relating to non-skid braking and steering mechanism for motor vehicles
IPC: B62D15/00
Filed: 1953-08-27
Abstract: 750,517. Motor vehicle driving and steering mechanism. ROSE, W. J., and MASTERS, H. G. Nov. 25, 1954 [Aug. 27, 1953], No. 23706/53. Class 79 (2). Tubular lost-motion couplings 1 are interposed in the rear wheel brake-operating rods 9 and permit the brakes to be selectively actuated by the vehicle steering mechanism independently of the brake pedal or lever, the steering mechanism being connected to the brakes through further tubular lost-motion couplings 1. As shown, each lost-motion coupling comprises a cylinder 4 secured to one rod section, the other rod section passing through a plug 5 and carrying a stop nut 10. Clamped to each of the rear sections of the rods 9 is a link 11 including front and rear sections interconnected by one of the further lost-motion couplings 1. At its front end each link 11 is secured to a bell-crank lever 13 pivoted to a bracket 15 secured to the vehicle frame. The other arm of the bell-crank lever 13 is connected by a link 16 to a clamp 17 on the track rod 18 of the steerable front wheels. In the straight ahead position of the front wheels and with the rear wheel brakes not applied the lost-motion couplings 1 in the rods 9 have the stops 10 in the position shown in full lines in Fig. 2 and the lost-motion couplings 1 in the links 11 each have their stops 10 in medial positions in the cylinders 4. In operation the brake on the inner side rear wheel is applied on a large steering deflection of the front wheels through the linkage 16, 13, 11 and rear section of link 9, the brake on the other rear wheel remaining unapplied and the brakes being unaffected by small deflections of the steering. mechanism. The brakes may be operated directly from the steering column instead of from the track rod.
Patent GB-1153853-A (GB)
Title: Photographic Recording and Reproduction Method and Apparatus
Inventor: BROWNING IBEN
IPC: G03B19/00
Filed: 1966-05-26
Abstract: 1,153,853. Moulding lenses. I. BROWNING. 26 May, 1966, No. 23724/66. Heading B5A. [Also in Division G2 and G5] Photographic moving picture recording and reproducing apparatus comprises a stationary half-tone lens mosaic 13 which continuously transmits light to a film plate or film strip 19 moving at an angle with respect to the rows of lenses in the mosaic, each lens focussing light on to the plate 19 as a spot of diameter not greater than the quotient of the separation of adjacent lens rows by the greatest number of lenses in either row, the spots thereby tracing out a series of parallel streaks of light on the moving plate 19. The lens mosaic comprises closely packed glass beads in orthogonal or staggered array and is separated from the film 19 by a mask (17), Fig. 2 (not shown), having a pin-hole (18) at the focus of each lens (16). Alternatively, the opaque epoxy resin binder (15) is apertured accurately to provide a mask. The mosaic may also be made of a single plastics material which is shaped in a silicone rubber mould which is obtained by pouring the uncured rubber over a suitable array of tiny ball-bearings.
Patent GB-517947-A (GB)
Title: Improvements in or relating to boxes made of cardboard or similar material
IPC: B65D5/49
Filed: 1938-08-11
Abstract: 517,947. Cartons. CHALMERS, J. W., and MOLINS MACHINE CO. Aug. 11, 1938, Nos. 23741 and 29534. [Class 18] A carton to hold rod-like articles, such as cigarettes, is made from a single..blank to form a body part and a box-like lid and the crease 24, Fig. 3, constituting a hinge for the lid is interrupted, as by slit 25 or by means of a circular aperture in the blank, to minimise the tendency for the lid to be torn off along the hinge as it is being opened. The body portion of the carton comprises a front 5, back 6, sides 7, 8, and reinforcing flaps 12 secured to the bottom panel 11, and the lid comprises a front flange 14, back wall 15, top 16, side flanges 17, 18, reinforcing flaps 21 which are secured to the inner face of the top 16, and a further flap 23 folded and secured to the inner surface of the front,flange 14. The material between the slits 25 is also creased but on the opposite face to the hinge crease 24. A partitioning member, Fig. 7, or liner for the front and side walls is made up from a single blank slit to provide lateral projections 42 which contact with the side flanges of the lid and give a "snap" action thereto and the blank is also bent inwards slightly at 38 to allow the lid to pass freely over the top of the sides 30. These sides also project above the hinge 24 so that access to the tops of the cigarettes in the carton can be had from both back and front. The doubled partition 34 may be omitted. Specification 507,998 is referred to.
Patent GB-688028-A (GB)
Title: Improvements in or relating to paper insulation for electric cables or capacitors
Inventor: THOMPSON ARCHIBALD WALTER
IPC: H01B3/18
Filed: 1949-09-14
Abstract: 688,028. Impregnating for electric insulation; paper. DUSSEK BROS. & CO., Ltd. Sept. 11, 1950. (Sept. 14, 1949] No. 23748/49. Classes 96 and 140. A process for the manufacture of paper insulation for electric cables and capacitors of the type comprising a paper dielectric impregnated with a suitable material comprises introducing into the paper at some stage during its manufacture, or at some stage during its preparation for use, e.g. up to 2 per cent of one or more hydrogen-absorbing organic compounds, preferably solid at room temperature, which compounds are soluble in the subsequently introduced impregnating material and which do not bring about any substantial deterioration.in the power factor of the material. The hydrogen-absorbing compound may be an olefinic or acetylenic compound, or may be naphthalene, and may be introduced into the paper in the beater in the form of an aqueous dispersion, or may be introduced into the paper web as a solution in a volatile solvent which is subsequently removed by drying. Alternatively, the compound may be introduced in part into the paper pulp, the remaining amount being introduced into the material used for the subsequent impregnation. Specification 650,088, [Group IV (a )], is referred to.
Patent GB-421296-A (GB)
Title: A device for regularising or eliminating pulsations in the mixture flow in the induction systems of internal combustion engines
IPC: F02M1/00
Filed: 1933-08-26
Abstract: 421,296. Admission pipes. WESTWOOD, F., Calthorpe House, Ilfracombe, Devon. Aug. 26, 1933, No. 23788. [Class 7 (ii)] A device for steadying the flow of mixture, which is clamped by a plate a with an aperture b in line with the induction passage, comprises a closed chamber d arranged symmetrically to the aperture b and connected thereto by a passage g having an inclined plate h or other means for mixing the fuel and air. The entrance to the passage g, the size of which may be adjusted by a slotted ring rotatable in the aperture b, is rectangular, or rhombic, in section and extends over about half the circumference of the aperture b. The plate h is adjustable ; it may be replaced by, or associated with, a spring m, or a rotating fan. An extra-air admission device comprises a tube which is extracted against a spring k to expose one or more holes x. A cock t is arranged to admit fuel, lubricant or water. The chamber may be heated to facilitate starting and a window l is provided.
Patent GB-1061941-A (GB)
Title: Flux composition for solder
IPC: B23K35/36
Filed: 1964-06-09
Abstract: A flux for soldering comprises rosin and from 0.05-3% by weight of a brominated hydrocarbon having at least 3 bromine atoms per molecule. The hydrocarbon may be an aliphatic compound such as an alkane or an alkene having less than 5 carbon atoms per molecule or it may be benzene. The brominated hydrocarbon may be carbon tetrabromide or bromoform.  The flux may be incorporated as a core of a solder wire and the flux may also contain turpentine as a plasticiser. Alternatively the flux may be applied to a workpiece as a solution in alcohol.  The following solder compositions are specified: -  .60Sn - 40Pb.45Sn - 55Pb;.40Sn - 60Pb; .50Pb - 32Sn - 18Cd;.57Bi - 43Sn;. 95Pb - 2Sb - 3Sn.  Copper brass, nickel, iron, zinc and their alloys may also be soldered.
Patent GB-1397948-A (GB)
Title: Method of colouring polyesters
IPC: C08K5/00
Filed: 1972-05-22
Abstract: 1397948 Polyester film base EASTMAN KODAK CO 22 May 1972 [24 May 1971]  23880/72 Addition to 1314085 Heading G2C [Also in Division C3]  A photographic material comprising a neutral density film support of a linear polyester containing a combination of a green dye 1,4-d-p-butylanilino-5,8-dihydroxy anthraquinone together with an azabenzanthrone dye having one of the formulae in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> each represent H, OH, amino, substituted amino, NO 2 , 4-nitrophenyl, 4-cyanophenyl, amido, sulphonamido, alkyl, aryl, aralkyl, alkaryl, ethoxycarbonyl,   or a group -<SP>O</SP>#C-R<SP>5</SP> in which R<SP>5</SP> is one of the groups shown for R<SP>1</SP> to R<SP>4</SP>, at least one of the groups R<SP>1</SP> to R<SP>4</SP> being other than H and not more than two having radical weights above 70, the film support carrying at least one radiation sensitive layer. In the preferred embodiment the azabenzanthrone dye is a red dye 2,3-dihydro- 3-methyl-2-oxo-6-p-toluidino-3-azabenzanthrone and the polyester is preferably polyethylene terephthalate or poly (1,4-dimethylene cyclohexylene terephthalate).
Patent GB-706439-A (GB)
Title: Improvements in and relating to electro-therapeutic apparatus
IPC: A61N1/36
Filed: 1951-10-15
Abstract: 706,439. Electro-medical apparatus. STRONG, C. L. Sept. 19, 1952 [Oct. 15, 1951], No. 23937/51. Class 81(2) Electro-medical apparatus for producing rhythmic muscular contractions effected by Faradic currents comprising a vibrator for interrupting an electric current which passes through a step-up transformer and has a surge imparted to it by a surger driven by an electric motor is characterized by the provision of a control unit adapted to be located remote from the generator and provided with means for controlling the strength of the current applied to the patient and means for controlling the speed of the electric motor The generator A comprises a source S of electric power connected across a switch 10, an electric motor 15 and a circuit containing a surger 24, driven by the electric motor 15, and a tell-tale lamp 25 located in the remote control unit B. A rheostat 16 is provided in the control unit B to control the speed of the motor 15. A vibrator 17 connected across a battery 18 is also provided in the generator A and produces an interrupted current which passes through a step-up transformer 19, the secondary windings of which are connected with a potentiometer 21 in the control unit B and a second surger 20 which is also driven by the electric motor 15. The patient is connected with the potentiometer 21 by leads attached to terminals 22 or a plug and socket connection 23, the potentiometer 21 serving as a device for adjusting the strength of current passing to the patient. The switch 10 operates a relay 11 to operate switches 12, 13, 14 in the motor, vibrator and tell-tale lamp circuits respectively. The surger 24 causes current surges in the tell-tale lamp 25 to give an indication of the rate of surge of the current applied to the patient. The generator A is connected with the control unit B by a multi-wire cable 30 secured by plug and socket connections 31, 32. The cable 30 may be dispensed with and the control unit B plugged directly on the generator A. Specifications 671,445 and 706,466 are referred to.
Patent GB-1331842-A (GB)
Title: Liquid dispensing apparatus
IPC: B05B11/00
Filed: 1971-04-19
Abstract: 1331842 Reciprocating pumps AFA CORPORATION OF FLORIDA 19 April 1971 [13 March 1970] 23959/71 Heading F1A [Also in Division B2] In a sprayer comprising a hand pump with a cap 16 for mounting it on a container, and a spray nozzle 25, a severable or removable seal 122 is attached to the nozzle to prevent unauthorised use of the pump and leakage from the container through the pump valves 17, 29 during shipping. As shown, the seal comprises bowler hat-shaped member 122 clamped between outer and inner members of the nozzle assembly, the exposed dome of the seal being severed before using the sprayer. In Figs. 6 to 8 (not shown), the seal comprises a hinged cap with a snapfit on the nozzle outer member, the cap being locked in position by a portion which is severed before use; a similar embodiment is described for a nozzle which is adjustable to produce a spray or jet. Figs. 9 to 12 (not shown).
Patent GB-1394905-A (GB)
Title: Method and apparatus in the casting of ingots by bottom- pouring techniques
IPC: B22D35/04
Filed: 1972-05-22
Abstract: 1394905 Ingot casting processes and apparatus GRANGES ENG AB 22 May 1972 [25 May 1971] 23965/72 Heading B3F Ingots are bottom cast in moulds 14 with bottom gates resting on a casting plate 10 having an arrangement of horizontally extending runners 11, a pouring sprue 15 and vertically arranged ingates 13. When the metal in the moulds 14 reaches the height required the metal supply is cut off by lowering a stopper 20 in a vessel part 18 of the sprue 15. The mould gates are closed either by shifting the moulds sideways (not shown) or by providing valve-plates 27 which are shifted sidewards by rams 28. The molten metal level is prevented from rising in the ingates thereby whilst the moulds are changed. To inhibit solidification of molten metal in the ingates 13 it may be caused to run back into a chamber 16 by supplying pressurized gas to the chamber 16 whilst pouring and releasing the gas after pouring to suck the metal from the ingates 13 into the runners 11
Patent GB-796990-A (GB)
Title: Improvements in or relating to method and means for measuring relative velocity
IPC: G01P5/00
Filed: 1949-09-16
Abstract: 796,990. Radar. GENERAL PRECISION LABORATORY, Inc. Sept. 16, 1949 [Sept. 23, 1948], No. 23975/49. Class 40 (7). The speed of an aircraft is measured by observing the Doppler shift of frequency of microwave energy reflected between the earth and aircraft. Pulses of microwave energy are radiated from the aircraft and are also employed to excite a resonant cavity the frequency of oscillation of which is compared with that of the energy reflected from the earth. As shown, the aircraft transmitting and receiving antenna 14 transmits pulses of H.F. energy supplied from magnetron 11 through wave-guides 31, 32 and each pulse from 11 simultaneously " rings " the resonant cavity 18. Reflected energy from the earth which is received at 14 after the transmission of each pulse, is passed through the guides 40, 42 to the mixer 46 together with the filtered output of mixer 22 supplied from amplifier 30 and I.F. generator 19. The Doppler frequency is developed at the mixing and demodulating circuit 21. In a second embodiment, not shown, the output of the cavity is mixed directly with the received reflected oscillations. In a third embodiment, not shown, amplification is effected at the intermediate frequency.