baber/WOPTO huggingface dataset:
Patent GB-242916-A (GB)
Title: Improvements in method of treating ceramic mixtures
Filed: 1925-07-01
Abstract: 242,916. Spurrier, H. July 1, 1925. Pottery materials; making tiles.-The air or gas entrapped in clay or like plastic substances used for making tiles, pottery, or other ceramic articles is removed by subjecting the clay to a vacuum and then suddenly breaking the vacuum and restoring substantially atmospheric pressure.
Patent GB-285714-A (GB)
Title: Improvements in electric lamp holders
IPC: H01R33/46
Filed: 1927-06-25
Abstract: 285,714. Taunton, J. B. June 25, 1927. Holders. - In holders of the kind wherein the wired terminal block 7 is adapted to be drawn into the casing 3 from the open end thereof and has an insulating lug 10 upstanding between the terminals 9 and extending to the top of the casing, the lug is so arranged as to clamp the supply wires against the entrance aperture 4. The inner surface of the casing is flattened at opposite sides 5 and the block 7 is correspondingly shaped to prevent its rotation in the casing. The block may be secured additionally by a set-screw 12.
Patent GB-772453-A (GB)
Title: Process for the preparation of steroid -a-iodo-ketones
IPC: C22C14/00
Filed: 1954-06-09
Abstract: The invention comprises steroidal D 16-21-iodo-20-ketones and a process for the preparation of steroidal a -iodoketones which comprises reacting a steroidal lower fatty acid enol acylate with N-iodosuccinimide.  The D 16-21-iodo-20-ketones thus obtained from D 16,20-21-acyloxy-20-keto-steroids, are subsequently reacted with an alkali metal acylate to give the corresponding D 16-21-acyloxy-20-ketones which are then catalytically hydrogenated to reduce the D 16 bond.  In examples: (1) D 5,20-pregnadiene-3b ,20-diol diacetate is heated in dioxan with N-iodosuccinimide and the cooled mixture treated with KI solution, sodium thiosulphate and water, when 21 - iodo - D 5 - pregnen - 3b  - acetoxy - 20 - one precipitates; acetolysis with potassium acetate yields D 5 - pregnene - 3b ,21 - diol - 20 - one diacetate; (2) D 2-cholesten-3-ol treated as in (1) gives 2-iodo-cholestan-3-one; (3) D 5,16,20 pregnatriene-3b ,20-diol diacetate as in (1) gives 21 - iodo - D 5,16 - pregnadien - 3b  - ol - 20 - one acetate and on acetolysis D 5,16-pregnadiene-3b ,21-diol-20-one diacetate, which is hydrogenated using a palladium-barium sulphate catalyst to D 5-pregnene-3b ,21-diol-20-one diacetate; (4) D 5,16,20-pregnatriene-3b ,20-diol 3-formate 20-acetate as in (3) yields the corresponding 21-iodo 3-formate and then the D 5,16-3b ,21-diol 3-formate 21-acetate; alternative treatment of the iodo compound with potassium benzoate yields the corresponding 3-formate, 21-benzoate; (5) the diacetate of the D 20-enol of 3-hydroxy-17-acetyl-1,3,5(10),16-estratetraene (prepared by enolisation with isopropenyl acetate and p-toluene sulphonic acid) is treated as in (3) giving successively the 21-iodo derivative, 3-hydroxy-17b -hydroxyacetyl-1,3,5(101),6 - estratetraene diacetate and 3-hydroxy - 17b  - hydroxyacetyl - 1,3,5(10) - estratriene diacetate.
Patent GB-908086-A (GB)
Title: Tunnel kiln for firing ceramic ware, particularly mass-produced coarse ceramic ware
IPC: F27B9/30
Filed: 1960-05-13
Abstract: 908,086. Circulating furnace atmospheres. LEITNER, A. May 13, 1960 [May 13, 1959], No. 17043/60. Class 51 (2). A tunnel kiln for firing ceramics has a number of transverse circuits for the kiln atmosphere, each fan 6 having fire outlet ducts for recirculated atmosphere, the two outer ones on each side being common to adjacent circuits. The outlet ducts and return ducts 7 open into the kiln 1 at points opposite the spaces between stacks of ware 2. In a modification, Fig. 2 (not shown), the axis of symmetry of the inlet ducts is displaced from that of the outlet ducts.
Patent GB-691161-A (GB)
Title: Plug-on means for securing electric conductors to terminals
IPC: H01R4/28
Filed: 1951-07-18
Abstract: 691,161. Two-part couplings. WUYTS, J. L. G. July 18, 1951, No. 17113/51. Class 38 (i). Means for securing a cable conductor 5 to a terminal screw (not shown) comprises a rubber body 1 having an axial passage 2 into which the cable 4 is inserted, the bared conductor 5 being anchored in a bore 7 communicating through a groove 8 with the passage. The diameter of the passage 2 is such that it is a tight fit on the terminal screw, and the grip may be increased by forming threads 3 in the passage. In Fig. 3 (not shown) the bore 7 is replaced by a small recess into which a knotted end of the conductor can be laid.
Patent GB-1187147-A (GB)
Title: Improvements in and relating to the Comparison of Signal Amplitudes
IPC: G01R29/06
Filed: 1967-04-14
Abstract: 1,187,147. Instrument landing systems. SOC. ANON. ARTUS. 14 April, 1967 [25 May, 1966], No. 17129/67. Heading H4D. [Also in Division G1] The difference in the amplitudes of the received 90 and 150 c/s. signals at an I.L.S. receiver is measured by chopping the received complex waveform, at the two frequencies 90 and 150 c/s. in choppers 1 and 2 respectively, and passing the chopped outputs through integrating circuits 3, 4 to a differential amplifier 5 feeding a galvanometer 6. The choppers 1 and 2 are arranged to pass either the positive or negative half cycles of their respective signals, any drift from this in-phase chopping being detected and corrected by a servo-control system including a servo-chopper 7 and servofilter 10. The filter 10, which feeds a shaping amplifier 11 controlling the choppers 1 and 7, is controlled by the error voltage at the servochopper output, and since the servo chopper cuts the complex waveform at the same frequency as the chopper 1 but after the waveform has been shifted by #/2 in a phase converter 8, the error voltage is zero so long as the chopper 1 cuts the waveform in phase with its respective signal. In an alternative system, Fig. 2 (not shown), the chopper 1 and the servo-chopper (12) are respectively controlled by two multivibrators (20) and (14) which are in turn controlled by an adjustable multivibrator (17) fed by the error voltage at the output of an integrating circuit (15) supplied by the servochopper. In both embodiments the difference between the amplitude of the two signals indicates the deviation from the correct approach path for landing.
Patent GB-360353-A (GB)
Title: Improvements in or relating to metal framework or reinforcement or the like applicable to openwork steel flooring, steps, or gratings, or reinforcement for concrete
IPC: E04C2/42
Filed: 1930-08-14
Abstract: 360,353. Metal gratings; reinforced concrete. STEPHENSON, H. P., 11, Balfour Terrace, Linthorpe, Middlesbrough. Aug. 14, 1930, Nos. 17158/31, (divided on 360,972), and 17157/31. [Classes 20 (iv) and 107.] Metal gratings for floors and steps and for reinforcing concrete consist of longitudinal and transverse flanged bars, either built up or made by folding over the edges of flat bars as flanges. One series is laid on the other and secured by welding or otherwise at the crossing points. Fig. 1 shows diagrammatically two series of channel bars, but other sections may be used, such as I, T, L, or Z. The webs may be horizontal or vertical in either or both series. Figs. 14 and 15 show built-up sections formed by welding or otherwise securing the component bars together and Figs. 16 to 22 show folded flat bars.
Patent GB-143092-A (GB)
Title: Improvements in magnetic attachment for engines
IPC: F01B25/00
Filed: 1919-07-09
Abstract: 143,092. Keun, H. L. July 9, 1919. Magnetic separators.- Magnetic particles are removed from lubricating- oil by a magnet 6 located in a tube 4 attached to the timer of an internalcombustion engine. Dust and other impurities also gravitate through the opening 3 and collect within the tube, and may be discharged upon removing a screw cap 5. The magnet is of the horseshoe type with the closed end 8 bent to one side.
Patent GB-247457-A (GB)
Title: Improvements in carriage brakes for typewriters
IPC: B41J19/02
Filed: 1925-07-06
Abstract: 247,457. Rogers, F. H., (Woodstock Typewriter Co.). July 6, 1925. Actuated or applied by speed regulators; blocks acting on drums.-In carriage brake mechanism for typewriters, of the kind wherein a rotary keycontrolled member driven from the carriage rack is provided with brake shoes which are displaced centrifugally, the brake shoes are engaged by a stationary element fixed to the machine. The stationary element comprises a cylindrical casing 41, Figs. 4 and 5, secured by rivets 42 to a bracket 34 which is screwed upon a support 33 on the frame. A tongue 36 cut irom the bracket 34 and bent outwardly has a stud 37 riveted or otherwise secured thereto, and a recess in one end of the stud forms a journal for one end of a shaft 38, the other end of which is journaled in a plate 39 attached to the top of the bracket 34. The brake shoes 46 are provided with openings 47 by which they are loosely mounted on pins 45 projecting from a circular plate 44 fixed upon the shaft 38, four pairs of shoes being shown in Fig. 4. Rotation is imparted to the shaft by a pinion 49 thereon meshing with a pinion 50 on a shaft 51 journaled in a bracket 52 pivoted on the stud 37. A pinion 53 on the shaft 51 is adapted to engage the carriage rackbar when the bracket 52 is swung consequent upon the actuation of the tabulating key. The carriage is drawn transversely by the usual spring-mechanism. The operative connection with the control means comprises a stud 55, Fig. 1, on the bracket 52 engaging a slot 56 in a forked arm 57 which is adjustably secured to a key-controlled lever 24 by a pivot screw 58 and a locking-screw 60 passing through a slot 61 in the arm. The. braking effect of the brake shoes 46 may be regulated by arranging them on the pins 45 so that they either lead or trail behind the pins during rotation of the shaft, the former arrangement producing the greater effect owing to frictional resistance tending to move the shoes further outward.
Patent GB-1511332-A (GB)
Title: Printing frame
IPC: G03F7/20
Filed: 1975-04-25
Abstract: 1511332 Printing frames HOECHST AG 25 April 1975 [30 April 1974] 17338/75 Heading G2X A printing frame has an inflatable sack 27 which presses an original 18 and printing plate 17 together during exposure. The frame has a portion which is transparent to actinic radiation e.g. a glass plate 10, a fluid pump 15, usually for air, to inflate the sack and optionally a vacuum pump 8 to evacuate the area around the sack. The sack is either of rubber or transparent plastics.
Patent GB-1187402-A (GB)
Title: Overload Protection Circuits
Inventor: JENKINS DAVID
IPC: H02H3/093
Filed: 1967-04-14
Abstract: 1,187,402. Protecting transistor circuits. INTERNATIONAL COMPUTERS Ltd. 24 May, 1968 [14 April, 1967], No. 17352/67. Heading H3T. [Also in Division H2] A circuit has a load 26 in series with a switching device, e.g. a transistor 2, a bi-stable circuit 12 means to apply an input signal to the switching device to render it conducting and to the circuit 12, to initiate a change to a state in which it renders the switching device 2 non- conducting and means to prevent the circuit 12 changing its state providing the device 2 conducts normally within a predetermined time. In the arrangement shown, a signal at a terminal 4 causes a transistor 1 to conduct to apply an input signal to the transistor 2 to render it conductive and to the circuit 12 where current flows through a resistor 18 and a Zener diode 16 to charge a capacitor 17. Providing no overload condition exists, the collector potential of the transistor 2 becomes such as to unblock a diode 22 to prevent the input signal charging the capacitor. However, should there be an overload condition, then the collector potential of the transistor 2 remains or becomes sufficiently positive to block the diode 22, the capacitor 17 charges so that after the predetermined time the potential across the capacitor causes the transistors 13, 14 to conduct and connect the base of the transistor 2 to a negative potential sufficient to stop it conducting. The transistors 13, 14 remain conducting until the fault condition is removed and a test/reset switch 24 is operated. A fault-indicating lamp 25 is provided.
Patent GB-216377-A (GB)
Title: Improvements in shirt and like fronts
IPC: A41B1/02
Filed: 1923-07-04
Abstract: 216,377. Kelsall & Kemp, Ltd., and Nock, W. July 4, 1923. Shirt fronts.-A plurality of fronts are superposed and so united that the outermost may be folded on itself to expose one half of its rear surface and one half of the outer surface of the front beneath it, the two halves presenting a fresh face for wear. In its loose form, Fig. 1, the front comprises three lengths of material of the same shape sewn together in pairs around their edges for one half their length so that the two halves of each length are attached to halves of each of the other lengths and three complete and continuous faces can be presented for wear. When the front is permanently secured to a shirt, Fig. 5, only two faces are provided.
Patent GB-458370-A (GB)
Title: Manufacture of disazo-dyestuffs
IPC: C09B31/075
Filed: 1935-06-17
Abstract: Azo dyes insoluble in water are made in substance, on a substratum or on the fibre by coupling a diazotized 4-amino-2 : 5-dialkoxy-2<1> : 6<1> - dichloro - 4<1> - nitroazobenzene with a arylide of 2 : 3-oxynaphthoic acid. Blue-black to black dyeings, printings, lakes and pigments are obtained.  In examples, the dimethoxy and diethoxy derivatives are specified and the 2 : 3-oxynaphthoyl compounds of aniline, a -and b -naphthylamine, o-toluidine, o- and p-anisidine, 3 - chloro - 4 : 6 - dimethoxyaniline, 2-methyl-4-methoxyaniline, 2 : 5-dimethoxyaniline, 2-methyl-4-chloraniline, m-nitroaniline, 4-chloraniline.  Specifications 100,804, 203,032, and 214,516, [all in Class 2 (iii)], are referred to.
Patent GB-274445-A (GB)
Title: Improvements in or relating to means for and a method of regulating internal combustion engines
IPC: F02B75/04
Filed: 1927-06-30
Abstract: 274,445. Michell, A. G. M. July 15, 1926, [Convention date]. Four- and two-stroke-cycle engines; driving- gear.-Supercharging is reduced as the speed increases, and the compression space is varied in accordance with the amount of supercharging. In the engine shown, the inlet pipes 1 to the pumps p, q and their delivery pipes z to the working cylinders h, k are provided with throttles actuated by connections y to the governor r. The governor also adjusts the cylinder clearance by further connections 2 to axially movable sleeves 3, 4 bringing either of bevel wheels 5 and 6 or 11 and 12 into gear with bevel wheels 7 and 8 connected to screws 9 and 10 which adjust the crank-shaft bearings d. The throttling-devices may be adjusted by the action of the engine suction on a diaphragm controlling an electromagnetic relay. When the pumps are not charging, the resistance due to useless pumping action may be reduced by producing a partial vacuum in the pump cylinder. According to the Specification as open to inspection under Sect. 91 (3) (a), the supercharging may be controlled by a clutch coupling the engine with the pump. This subject-matter does not appear in the Specification as accepted.
Patent GB-389696-A (GB)
Title: Improvements in or relating to electric irons and other electric heating devices
IPC: D06F75/24
Filed: 1932-06-21
Abstract: 389,696. Electric hand-irons. PHARABET, C. A., 9, Rue Roux-FÚdry, Montargis, Loiret, France. June 21, 1932, No. 17564. Convention date, July 6, 1931. [Class 138 (ii).] The heating means comprises a coil b located in a circular groove formed in the adjacent faces of plates a, d of magnetic material secured together by screws e, the plates being heated by induced currents. The iron is formed by securing to the plate d a block f made of a fibrous cement composition and carrying a handle j.
Patent GB-1149672-A (GB)
Title: Process for producing calcined phosphate fertilizers
Inventor: HOLST RUDOLF
IPC: C05B13/02
Filed: 1967-04-17
Abstract: 1,149,672. Calcined phosphate fertilizers. KALI CHEMIE A.G. 17 April, 1967 [21 April, 1966; 13 Sept., 1966; 16 Nov., 1966(2)], No. 17579/67. Heading C1A. Calcined phosphate fertilizer is produced in a rotary kiln by a process wherein an aqueous alkali metal hydroxide solution is carbonated and concentrated by treatment with the hot waste gases from the rotary kiln, either before or after the solution is mixed with a phosphate rock and any silica which may be needed to provide in the calcined phosphate fertilizer a molar ratio P 2 O 5  : SiO 2  of between 1 : 0À1 and 1 : 0À9 and to bind all the calcium oxide exceeding the molar ratio 2 CaO : P 2 O 5  in the form of calcium silicate. The resulting mixture is worked up into a granular or fragmented form and is then calcined in the rotary kiln at a maximum temperature of 1000 to 1300‹ C., fuel being combusted within the kiln. Preferred alkali metal hydroxides are NaOH, KOH or a mixture of the two. The preferred ratios are 1À2-1À5 mol alkali metal oxide : 1 mol P 2 O 5  and a mole ratio P 2 O 5  : SiO 2  of 1 : 0À6-0À8. The calcined alkali metal phosphate may be withdrawn from the kiln, cooled, ground and granulated with water, either alone or with a potassium salt. A preferred embodiment comprises mixing an aqueous alkali metal hydroxide solution of 40-60 wt. per cent concentration with phosphate rock and any required amount of silica, whereafter the resulting mixture is carbonated and dried in a spray drier with the hot CO 2 -containing waste gases from the rotary kiln. Another embodiment comprises mixing an hydroxide solution of 40-70 wt. per cent concentration with phosphate rock and any required silica, and thereafter depositing the mixture in a layer 5-25 mm. thick on an inert support and drying with the waste kiln gases at a temperature of 150-250‹ C.
Patent GB-559196-A (GB)
Title: Improvements in or relating to apparatus for raising, lowering or moving an object
IPC: B66F3/24
Filed: 1940-12-12
Abstract: 559,196. Lifting-jacks. MORGENSEN, O. Dec. 12, 1940, No. 17601. Convention date, Dec. 8, 1939. [Class 78 (iii)] The jack 21 is supported on a platform 20 suspended by rods 17, 18, 19 from a ring 23 supported on brackets 11, 12, 13 secured to the lower part 3 of a sleeve 1. The upper part 2 of the sleeve has hinged thereto supporting posts 5, 6, 7. When an object 32, such as an aeroplane wing, is to be raised, the platform 20 is raised until the completely retracted jack engages the lower end of a rod 31 which slides inside the sleeve 1. The platform 20 is supported in this raised position by keyhole slots 24 in the rotatable ring 23, the rods 17, 18, 19 being grooved at 22 for this purpose. The jack is then operated to its full extent to raise the rod 31 and object 32, the rod being maintained in the extended position by a pin 34 received in one of a series of holes 33 in the rod. The jack is then retracted, the platform 20 raised, and another lift given and so on. A spring-pressed plunger 30, engaging a recess in a journal in which rod 16 slides, locks the ring 23 in its platform-supporting position. Tie-rods 37 connect the part 3 to collars 8 fastened on the lower end of the posts ; the pin connection of the tie-rods with the collars is readily releasable, to permit folding of the device. Specification 559,197 is referred to. The Specification as open to inspection under Sect. 91, states that the collars 8 are fastened on the posts by pins. This subjectmatter does not appear in the Specification as accepted.
Patent GB-920705-A (GB)
Title: Improvements in and relating to dry-contact limit switches for machine tools
IPC: B23Q15/22
Filed: 1959-05-22
Abstract: 920,705. Control of motors. GOULD & EBERHARDT Inc. May 22, 1959 [March 20, 1959], No. 17616/59. Class 38 (3). [Also in Groups XXII, XXIV and XXXV] A circuit for controlling a power driven member of say a machine tool comprises a valve T normally conductive having a grid 23 maintained at cathode potential by a resistor 28, but connectible to earth through a pair of contacts C1, D1 When the member reaches the limit of its travel, contact C1 carried on the member makes with insulated contact D1 cutting off the valve T1, de-energizing a relay 25a which disconnects the driving source viz. electric motor or hydraulic cylinder over contacts 27a. In a modification, a second pair of contacts 27b are connected to a second valve T2 which prevents conduction of this valve when T1 is conducting. Other contacts C2, D2 and 270b operate on the reverse motion of the cylinder to hold T1 non-conducting when T2 conducts. An additional pair of contacts may be provided to cut off the supply if the first pair of contacts fail to prevent motion of the machine.
Patent GB-149507-A (GB)
Title: Improved polishing composition
IPC: C11D10/06
Filed: 1919-07-15
Abstract: A cleaning and polishing composition consists of about 6 oz soap, dissolved in 1 gallon of water and mixed with 1 gallon of gas oil, and 4 lb. of finely powdered silica, to which 1 oz. of oil of mirbane may be added.
Patent GB-511321-A (GB)
Title: Improvements in hydraulic copying devices for lathes and other machine tools
IPC: B23Q35/18
Filed: 1938-06-14
Abstract: 511,321. Lathes. BRANDENBERGER, H. June 14, 1938, No. 17678. Convention date, Oct. 25, 1937. [Class 83 (iii)] In a hydraulic copying mechanism for a lathe or other machine tool a valve controlled by the templet is adjustably mounted on a stationary part of the machine and is located on the same side of the workpiece as the templet and cylinder. The tool slide 4 is raised to operative position by constant pressure in a pipe 6 raising a piston 2 attached to a slide support 3. To avoid errors due to wear of the slide a templet 5 is carried on an auxiliary slide 26 attached to the slide 4. The templet 5 engages a lever 23 contacting a valve rod 27 with valve V pressed by a spring 32 on to a stationary seating 33 adjustable by a screw 35 operated by gearing 39. Pressure on the piston 2 raises the slide 4 and the templet 5 which, through the lever 23 opens the valve V to allow fluid to exhaust through a port. The carriage then falls by gravity and the spring 32 closes the valve. A rapid lowering of the slide independently of the templet is effected by a lever 40 engaging the valve rod 27. An electromotor 51. drives shafts, 52, 53. 54, 55 and then selectively gears on a shaft 56. The shaft 56 rotates a shaft 57 directly or reversely through a gear 58. A worm 59 on the shaft 57 through gearing, Fig. 10 (not shown), rotates a gear 14 moving the slide rack 15 and through a clutch 61 drives a shaft 60 rotating the gear 39 for adjusting the valve seating. The shaft 60 may be adjusted by a handwheel 62.