baber/WOPTO huggingface dataset:
Patent GB-1077393-A (GB)
Title: New steroids
Inventor: NATHANSOHN GIANGIACOMO
IPC: C07J75/00
Filed: 1965-04-22
Abstract: Novel compounds of the formula <FORM:1077393/C2/1> in which R is O or H(b -OH) and R1 is H or the acyl radical of a lower aliphatic carboxylic acid are obtained by acyloxylating or hydroxylating as the case may be the corresponding compound of Formula (III) <FORM:1077393/C2/2> on the 21-position by a method known to be capable of achieving the corresponding transformation in 20-keto steroids not containing the oxazoline ring, e.g. by reaction with iodine in the presence of calcium oxide to form the corresponding 21-iodo derivative which is hydrolysed and esterified to form a 21-ester and if the 21-hydroxy compound is the desired product the 21-ester is hydrolysed.  The compounds of the Formula (III) may be obtained by the bromination and dehydrobromination of a compound of the formula <FORM:1077393/C2/3> wherein R is as defined above. Pharmaceutical compositions having anti-inflammatory activity and containing the above compounds may be administered orally.
Patent GB-370747-A (GB)
Title: Improvements in hats with brims
IPC: A42B1/02
Filed: 1931-06-22
Abstract: 370.747. Hats. AKCIOVA SPOLECNOST TOVAREN NA FEZY, Strakonice, Czecho-Slovakia. June 22, 1931, No. 18078. Convention date, Feb. 4. [Class 63.] A felt-like hat with a brim is made from a knitted fabric produced in the form of a sector or cone of material capable of being fulled, such as wool, the blank being knitted stronger or denser in the brim part than the remainder. The edge portion b may be knitted with three threads, the portion c at the mergence of crown into brim with two threads, and the crown portion a with one. The edges are sewn together to form a cone which is felted and finished as usual.
Patent GB-907448-A (GB)
Title: Improvements in flowmeters
Inventor: FELLOWS HORACE
IPC: G01F1/115
Filed: 1958-06-06
Abstract: 907,448. Electric selective signalling systems; flowmeters. HOBSON Ltd., H. M. May 29, 1959 [June 6, 1958], No. 18169/58. Class 40 (1). In a fluid flowmeter in which electric pulses representative of the flow are counted by a counter, the counter is operable additively and subtractively, and switching means responsive automatically to change in the direction of fluid flow cause the counter to add when fluid is flowing one direction and subtract when it is flowing the other direction. The apparatus described is for metering the flow of fuel in an aircraft fuel system. In the first embodiment, Fig. 1, a pulse generator 10 in the aircraft tank to refuelling engine flow comprises a vaned rotor carrying a magnet, pulses being generated in a coil external to the fuel pipe. After amplification at 11 and shaping at 12, the pulses pass via a gate 30 controlled by the output of an oscillating multivibrator whose mark/space ratio is adjusted in accordance with the temperature, through a succession of binary frequency dividers 13, 15 to actuate a relay RL2 whose contacts 22 control an electromagnetic counter 16 to count subtractively. The refuelling supply line contains a pulse generator 10<SP>1</SP> from which pulses, after amplification at 11<SP>1</SP> and shaping at 12<SP>1</SP> pass to the binary frequency dividing chain 15 to actuate the relay RL2. A relay RL1 is energized by the refuelling pulses and is maintained energized by an integrating circuit, thereby changing over contacts 23 so that contacts 21 of the relay RL2 are effective to operate the counter 16 additively. The multivibrator 17 and associated temperature compensating device comprising a variable resistor 18 control also the number of pulses passed from the shaper 12 via a gate 19 to a rate-offlow indicator 20, the variable resistor 18 being adjusted in accordance with temperature so that the rate-of-mass-flow is indicated. In the second embodiment, Fig. 2, a single pulse generator 100 is actuated by fluid flowing in either direction, the polarity of the pulses produced being dependent on the direction of fluid flow. Thus when fluid fuel is flowing from the aircraft tanks, positive pulses are generated, which are fed along channel 1 to actuate a relay RL2, contacts 22 of which are effective to operate the counter 16 subtractively. When fluid flows in the reverse direction, negative pulses are produced and flow along channel 2 to the relay RL2, a relay RL1 being energized to cause contacts 21 of the relay RL2 to be effective and to change over contacts 26 to render a multivibrator 17 responsive to a compensating circuit 28 instead of to a temperature compensating device 18 to allow for the different characteristics of the pulse generator 100 in reverse flow. Specifications 752,496 and 788,798 are referred to. Reference has been directed by the Comptroller to Specification 798,508.
Patent GB-297174-A (GB)
Title: Improvements in or relating to high frequency electrical apparatus
IPC: H03B9/01
Filed: 1927-07-11
Abstract: 297,174. Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. July 11, 1927. Vacuum tubes. - Thermionic generators of very short waves, such for example - as those described in Specifications 268,028; 268,029, [Class 40 (v), Wiretess signalling g &c.]; 274,183; 287,663 and 291,619, [both in Class 40 (v), Wirelees signalling &c.], are arranged so that the potential of the grid or control edectrode changes earlier in the cycle than that of the anode. In this way the lag due to the time of flight of the electrons between the electrodes is compensated. The phase of the grid potential is advanced by making the grid conductor shorter than the anode conductor, or by interposing localized inductance in the latter. As shown in Fig. 1, the oscillator comprises a pair of valves 14, 16 and four parallel conductors connecting respectively their anodes, grids, and filaments. Battery connections are made at the central potential nodes on these conductors. Coils 42, 44 of one or more turns or kinks are interposed in the anode leads, preferably close to and equidistant from the node; or the anode leads may be bowed or bent. Fig. 2 shows the system applied to an oscillator of the kind described in Specification 268,028, comprising a pair of three-electrode valve structures supported at opposite ends of a, vacuous envelope 60. Each anode A is carried on a ring A<l> attached to the central insulator 50 by three supporting conductors A<2>, spaced 120‹ apart and each having a kinked portion 51. The grids G are similarly carried on rings G<l> each connected hy three supporting conductors G<2> to the central disc 50. The filament legs are connected by stiff wire to rings F<u>, F<2> each carried by three symmetrically-disposed supports F<5>, F' attached to the disc 50. Each pair of leads to thej electrodes is joined by a bolt passing through the disc 50, and the battery connections to the electrodes are made by conductors passing through seals in the envelope 60 and attached centrally at the potential node, as shown in Fig. 6. The whole structure is resiliently mounted within the envelope 60 by means of leaf-springs attached to the disc 50 pressing outwards against the envelope walls. When applied to oscillators in which the anode, grid, and filament conductors are all of L form, the U of the anode, conductor may be larger in either or both dimensions than that of the grid conductor; or the anode conductor may be bent or kinked. When the oscillator operates at an harmonic of its natural frequency.! the phase of the grid potential may be advanced more -than 360‹.
Patent GB-313760-A (GB)
Title: Improvements in filling openings and closing caps for petrol, oil and similar tanks
IPC: B60K15/04
Filed: 1928-06-26
Abstract: 313,760. Homer, A. J. June 26, 1928. Stoppers, screw.-A screw-cap for a petrol &c. tank a has an outer skirting d and an inner skirting e which supports a seating washer f on which the seating pressure is directed obliquely inwards. The inner skirting e forms part of an anti-splash device e<3> of inverted cone formation.
Patent GB-141588-A (GB)
Title: A method and machine for preparing sealed medical cachets, and the cachets produced
IPC: A61J3/07
Filed: 1919-07-25
Abstract: 141,588. Brett, A. H. July 25, 1919. Capsules.-Apparatus for filling and sealing medical cachets or capsules comprises means for receiving the empty cachets, for removing the lower half cachet and filling it, for moistening the upper half cachet, for bringing the two halves together to seal the cachet, and for ejecting the sealed cachet from the machine. The apparatus comprises a feeder 1 mounted on a bridge-piece 3, Figs. 1 and 2, which straddles a horizontally movable slide 2. A receiver 5, Figs. 2 and 5, is supported beneath the slide by pins 4<1>, 11 engaging slots 4 in the bridge-piece 3, and is pressed upwardly by a spring 6. The slide, Fig. 4, is provided with an aperture 7 for the passage of the capsules to the receiver 5, a damping roller 15, a hopper 12 controlled by a slide 14, and an ejecting lug 17, and is formed with cam surfaces 9, 16 which co-operate with the pins 11 on the receiver 5 to give the latter the requisite vertical movement. The empty cachets are placed in the feeder 1 with a spacing disk 8 between the halves of each cachet. In operation, starting from the position shown in Fig. 7, the receiver 5 carrying the lower half capsule is pressed downwards by the cam surface 9 as the slide is moved in the direction of the arrow, the spacing disk 8 is carried forward by the slide and ejected, the roller 15 passes across the upper half capsule, and the hopper 12 comes over the lower half capsule as shown in Fig. 8, and its slide 14 is retracted to discharge the contents. On returning the slide, the upper half cachet is again damped, the lower half brought into contact with its upper half, the receiver lowered by cam action, and the completed cachet ejected by the lug 17.
Patent GB-1409448-A (GB)
Title: Automatic target following apparatus
IPC: G01S3/786
Filed: 1966-04-27
Abstract: 1409448 Automatic steering control EMI Ltd 21 April 1967 [27 April 1966] 18548/66 Heading G3R In an automatic target following system, a target area is viewed by a television camera, mounted on a missile and the camera video signals are used to maintain the missile correctly aligned on the target area and to maintain the camera field of view, directed at the selected area. The signals are progressively modified to compensate for increase in target area size as approach progresses. The section of the scene, enclosing the target, viewed by the camera 1, is selected by manual adjustment of the joy-stick, 14. The counters 12, 13 are thereby caused to count backward or forward to define the viewing gate. The quartized video signals received from the camera after the manual selection of the initial, or viewing gate, are extended in time in the converter, 32, and stored in the magnetostructive delay line, 42 to form a datum of comparison for subsequent camera frames. The comparison is effected in the equality gates 45, 50 to 53 which receive signals for 42 and the quartized video signals from 32 representing the instantaneous camera scene signals. The counters 61 to 65 are energized from the comparison gates in accordance with the degree of correspondence between the selected viewing area and that presently viewed by the camera and the resultant restoring signals are applied to the counters 12, 13 to bring the camera viewing gate into alignment with the initially selected area. The same restoring signals are also applied to the missile guidance to correct path deviation. The counter 80 registers the degree of approach to the target and replaces the initially  selected gate signals by up-dated video signals to allow for changes in the relative scale of target scenes with respect to the datum. In alternative forms, the delay line may be a shift register and stabilization of the camera scanning against yaw and pitch is effected. The operator may also inch in to the target to correct an initial aiming error as the missile approaches the selected area. A marker is operated across the observation screen, by the joy-stick, and is brought into alignment with the required target. The corresponding signal coordinates are stored and then transferred to the main control system counters 12, 13, and guidance is effected on the fresh datum. Forges area definition may also be varied from fine, at the centre, to coarse, at the periphery by changing the size of the signal elements along each scanning line.
Patent GB-498468-A (GB)
Title: Improved method of and apparatus for the transmission of speech and other sounds
IPC: H04B5/00
Filed: 1937-07-05
Abstract: 498,468. Inductive telephony. POLIAKOFF, J., and SNEATH, O. B. July 5, 1937, No. 18572. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] Speech and other sounds are transmitted throughout a limited space such as an auditorium, particularly for deaf-aid purposes, by means of audio-frequency induction between a conducting loop system fed from a low frequency amplifier and a pick-up coil energizing a portable receiver. The pick-up coil is screened against electrostatic induction by slotted metallic discs. A carbon or condenser microphone may be connected in place of the pick-up coil for direct reception of sound, or a combination of the two inputs may be obtained by suitable switches or potentiometers. Radio receiving apparatus modified by incorporating therein a suitable pick-up coil connected for example to the gramophone pick-up terminals may be employed to receive the signals. The pick-up coil may be of large dimensions and low resistance and connected to the set through a suitable step-up transformer and may be placed at a distance from the set to avoid picking up mains hum.
Patent GB-572344-A (GB)
Title: Improvements in wire bunching or twisting machines
IPC: B21F7/00
Filed: 1943-11-09
Abstract: 572,344. Wire bunching or twisting machines. HANSON & EDWARDS, Ltd., and HINDS, R. Nov. 9, 1943, No. 18610. [Class 120 (ii)] [Also in Group XXV] In a wire bunching or twisting machine comprising outer and inner rotors for imparting four twists per revolution the cradle g carrying the bobbin a, lay wheel d and associated parts is counter-weighted at h to prevent its rotation. The outer rotor p, q, r, is driven by the pulley u and the inner rotor k, m revolves in bearings o at the same speed but in the opposite direction, the wires 2 passing as shown over the pulleys 3, 4, 5, 6 on the outer rotor and the pulleys 7, 8, 9, 10 on the inner rotor into the cradle g and over the pulleys c, d, e, f and through the traverse guide b to the bobbin a. The inner rotor is driven through a shaft x journalled in the outer rotor and provided with gear wheels w, y meshing respectively with a fixed gear wheel v and a gear wheel z on one of the trunnions n of the inner rotor.
Patent GB-248999-A (GB)
Title: Improvements in and relating to heat interchangers and apparatus and processes for carrying out catalytic gas reactions
IPC: C01C1/04
Filed: 1925-07-22
Abstract: 248,999. Synthetic Ammonia &. Nitrates, Ltd., and Bramwell, F. H. July 22, 1925. Bowed tubes between headers. - In a process for example for carrying out the synthesis of ammonia a heat exchanger is used comprising a plurality of thermally insulating cylindrical baffles C, D forming annular spaces 1 - - 5, containing a large number of small cross-section tubes 6 extending parallel to the axis of the apparatus up and down within the annuli and connected so that the gas flows through them in parallel. A central catalyst-space A is provided. Specification 229,354, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-569283-A (GB)
Title: Improvements in and connected with the metal sheathing of cores by extrusion
IPC: B21C29/00
Filed: 1943-11-11
Abstract: 569,283. Extruding. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd., DEAN, J. N., ROBINSON, F. L., and SMITH, J. A. Nov. 11, 1943, No. 18778. [Class 83 (iv)] In the hot extrusion of lead, lead alloy, or other metal 17 about a core 2 affected by heat, e.g. an electric conductor insulated by thermoplastic material, cooling is applied to said core on its way to the extrusion die 18 and to the sheathed core 4 as it emerges therefrom. Cooling liquid may be passed through a copper jacket 8 arranged in the mandrel 13 which supports the " point " 14. The liquid does not come into actual contact with said core. Cooling liquid is preferably brought into contact with the sheath 4 by means of a mild steel pipe 24 and jacket 21 arranged in the nut 19 which holds the die, a weir 26 regulating the level of the liquid.
Patent GB-1353074-A (GB)
Title: Skis
IPC: A63C5/04
Filed: 1971-08-20
Abstract: 1353074 Ski practise apparatus MOGUL LEISURE PRODUCTS Ltd 3 Aug 1972 [20 Aug 1971 22 Jan 1972] 18844/71 and 3122/72 Heading A6D A ski practise apparatus comprises, in combination, a ski, the underside of which has a longitudinal central portion which stands proud of and is smoother than the adjacent side portions; and a machine, the machine including an endless belt whose surface is of slightly undulating but substantially non-undenting material. As shown in Fig. 3 the ski undersurface has a central portion 12 flanked by grooved side portions 9. The side portions may alternatively be provided with stud like projections. The machine (Fig. 4) comprises an endless belt carried on rollers 21, 22, the lower roller being driven by motor 32 via variable speed gearbox 31 and the upper roller being adjustable to tension the belt. The inclination of the belt carrying frame is adjustable by rotation of lead screw 42 by motor 50 via gearbox 49. Microswitches 61-63 switch off motor 50 at upper and lower limits of inclination. The motors controls 51-57 are located for easy reach by a skier and a stop switch arrangement 77-78 is operated by the skier if he falls and is carried to the top of the slope. Several machines may be placed side by side with the axles 24 joined. Materials: The ski may be moulded from synthetic plastics (e.g. polymethylmethacrylate). It may be in one piece or be a normal ski with a sole plate of the appropriate shape screwed thereto. The belt may be closely woven strands of synthetic plastics material and may have thick strands interwoven with thinner strands. A "basket weave" of polyamide or polypropylene fabric is described. Alternatively the material may be of moulded plastics with an undulating surface resembling said fabric.
Patent GB-688466-A (GB)
Title: Improvements in the manufacture of soap bars or tablets
IPC: C11D13/00
Filed: 1949-07-19
Abstract: Hot molten filled soap containing sodium aluminium silicate gel is rapidly chilled and the resultant solidified soap is plodded and formed into bars or tablets.  One or more steps, such as are described in Specification 597,322, may be taken to increase the degree to which the filled soap mass is compacted during plodding. Thus, prior to plodding, the filled soap may be worked by milling or by forcing it through at least one foraminous plate.  Again the plodding may be carried out at sub-atmospheric pressure or in the presence of carbon dioxide.  Alternatively, the extruded filled soap bar may be passed into an extrusion tube added to the nozzle of the plodder, the increased resistance to the passage of the soap caused by the extrusion tube serving to build up pressure in the plodder. In addition to the sodium aluminium silicate gel, the soap may contain other fillers such as sodium carbonate, starch, sugar, clay, sodium silicate, caustic alkalis, and sodium chloride.  The sodium aluminium silicate gel may be added to the soap in an already prepared form.  Alternatively it may be formed in situ, for example by adding aqueous solutions of sodium silicate and sodium aluminate to the hot molten soap or by adding the required proportions of such ingredients as aluminium silicate gel, alumina gel, silica gel and caustic soda to the soap.  In the examples, molten sodium soap (made from a mixture of palm oil with palm kernel oil, ground nut oil or rosin) is crutched with aqueous sodium silicate and aqueous sodium aluminate, and the mixture is chilled, milled, plodded under vacuum and extruded to give soap bars containing sodium aluminium silicate gel.  Specifications 20916/07, and 132,511, [both in Class 91], also are referred to.
Patent GB-1309446-A (GB)
Title: Textilelike light reflecting flexible sheet material
IPC: B29C61/06
Filed: 1970-04-21
Abstract: 1309446 Laminates BREVETEAM SA 21 April 1970 [25 April 1969] 19007/70 Heading B5N A flexible sheet material having a metallic light reflecting surface on one face and presenting a network of connected strips formed by a pattern of closely arranged slits cut through the whole thickness of the sheet material, comprises an upper layer having metallic light reflecting properties secured to a backing sheet made of a heat-shrinkable plastics material, the strips between the slits having curled-down edges with the light reflecting face on the convex side, the curling of the strips being caused by a shrinkage effect induced in the backing sheet after slitting the upper layer may be of aluminium foil or of copper, brass, tin, bronze, zinc or lead and the backing sheet may be of stretched polyethylene foamed sheet. The metal surface may be covered by a net of plastics material and the layers may be bonded together by pressing. Slits are cut through the whole thickness of the compound sheet material in a direction transverse to that of the shrinkage of the backing sheet. Heat shrinkage may be effected by means of radiant heat and a fibre fleece bonded on to the backing sheet during the heat shrinkage. The sheet material may be used in the manufacture of garments and curtain materials.
Patent GB-983280-A (GB)
Title: Sand removal plant
IPC: E03F5/14
Filed: 1963-05-14
Abstract: 983,280. Sand removal plant. PISTA S.A. May 14, 1963 [May 22, 1962], No. 19020/63. Heading B1D. Sand removal plant comprises a basin 1 connected to a channel 6 for supplying impure water and to a channel 7 for evacuating clear water, the basin having a circular horizontal section and conical surfaces 3 converging at their lower end on a sand collecting tank 4, a stirrer 25 being arranged in the central part of the basin, below the lowest water level, to impart a constant movement to the water in a transverse direction relative to the sedimentation movement of the sand, and a pump 10 permitting the transfer of the sand from the collecting tank towards a drainage compartment 9, characterized in that the pump 10 is arranged in the central part of the basin, the sand evacuation pipe 11 constituting a vertical axis in the centre of the basin, the stirrer being carried on a hollow shaft arranged around this vertical axis. Compressed air and water may be supplied to suction member 14 by conduits 13, 18 respectively. Specification 830,531 is referred to.
Patent GB-119586-A (GB)
Title: Improvements in Adjustable Spanners and Wrenches.
Inventor: ASHTON JOSEPH
IPC: B25B13/12
Filed: 1917-12-27
Abstract: 119,586. Ashton, J. Dec. 27, 1917. Sliding - jaw wrenches. - An adjustable wrench of the type comprising a fixed jaw having a shank in which the movable jaw slides, and holes or notches in the shank with which a pin fixed on the movable jaw engages, is formed with a grooved shank in which the movable jaw slides, the sides being slotted to receive a pin projecting from the movable jaw, and a helical spring in a recess of the movable jaw to hold it in adjusted position. As shown in Fig. 1, the shank a<2> of the fixed jaw a is formed from sheet metal into U-section, and the movable jaw c slides in it, slots a<3> and the projecting ends of a retaining pin c<2> in the jaw c limiting and guiding its movement. A pin c<3> at the lower end of the jaw c may be engaged in any of the holes a' which axe spaced apart so as to position the jaw for the standard size of nut to be operated. A knob c<4> is fixed in the jaw c for manipulating it. A helical spring d<1> is provided in a recess in the upper end of the jaw c to assist in holding the pin c<3> in engagement. In place of the pin c<3> and holes a', notches a<5>, Fig. 4, in the edges of the shanks and pins or catches a<6> on the jaw c may be employed.