baber/WOPTO huggingface dataset:
Patent GB-1395792-A (GB)
Title: Flame-proof finishing of fibrous materials
IPC: D06M13/288
Filed: 1972-06-19
Abstract: 1395792 Impregnating fibrous material HOECHST AG 19 June 1972 [19 June 1971] 28515/72 Heading D1P A process for treating a fibrous material to impart a washing-resistant flame-proof finish thereto, comprises impregnating the material with a curable N-methylol phosphorus compound and with a swellable polymeric aliphatic polyhydroxy compound and condensing the two compounds under acidic conditions and heat treatment. The material may be a tufted felt fleece which may have one of the following compositions: 50% polyester and 50% polyamide fibres; 78% polyamide, 12% polyacrylonitrile and 10% jute fibres; 50% polyamide and 50% jute fibres; 50% polyamide, 25% polyacrylonitrile and 25% polyester fibres; or 50% polyamide and 50% viscose rayon fibres. The phosphorus compound may be an N-methylol carbamoyloxyalkyl phosphonic acid ester or an N- methylol carbamoylalkyl phosphonic or phosphinic acid ester, the following being exemplified: 1-(N, N-dimethylol-urethano)-ethyl-1- phosphonic acid diethyl ester, N-(N, N-dimethylol-urethano) - methyl - phosphonic acid diethyl ester, 1-(N-methylol-urethano)-ethyl-1- phosphonic acid diethyl ester, 3-(N, N-dimethylol-urethano)-propyl-1 phosphonic acid dimethyl ester, and the reaction product of 1 mole of dimethyl-phosphite, 1 mole of acrylamide and 1.2 moles of formaldehide. The polyhydroxy compound may be a low-viscosity partially etherified or non-etherified starch or cellulose, the sodium salt of an alginic acid or a polyvinyl alcohol. The compounds may be applied to the fibrous material as an aqueous solution by padding the material to a 90 to 150% pick-up followed by curing at from 120 to 180‹C for from 10 to 60 minutes. The resulting finish is stated to be soil-resistant. Other finishing agents which may be applied together with the compounds include polyvinyl acetate, or a styrene/butylacrylate/ acrylonitrile/acrylamide copolymer which may impart dimensional stability to the fibrous material, and dimethylolurea and a curing catalyst.
Patent GB-1063458-A (GB)
Title: Improvements relating to screw assembly methods
Inventor: ALLSOP FREDERICK
IPC: B23P19/00
Filed: 1964-07-10
Abstract: 1,063,458. Screwing-up machine details. FLAGGRAND Ltd. June 16, 1965 [July 10, 1964], No. 28523/64. Heading B3N. Screws to be screwed into a workpiece are fed down a nylon tube (1), Fig. 1 (not shown), through a block (2) into a roller (7), which is pivoted to align the screw with a screwdriver (15). Roller (7) is pivotally carried by a slide (5) connected to a pneumatic cylinder (6), and a cam follower (8) is connected by a spring (9) to a cam block (3). When cylinder (6) moves the slide (5) downwards, follower (8) slides over the edge of cam surface (4) and pivots the roller (7). Screw (14) is prevented from falling out until driven by the screw driver (15) by a ball and spring (12, 13). In a modification, the screws pass from block (2), Fig. 3 (not shown), into a block (16) pivoted to slide (5). Block (16), Figs. 5, 6 (not shown), has a hinged portion (18) held closed by a catch (19) and being adapted to be opened to release faulty screws.
Patent GB-754626-A (GB)
Title: Method for the production of ferrites and particularly for the manufacture of permanet magnets
IPC: C04B35/26
Filed: 1954-10-04
Abstract: In making ferrites for permanent magnets, there are added to the mixture of ferrite forming oxides other oxides which do not react with the first oxides, but limit the crystal size to 1 micron, the source of these other oxides being the waste material produced in the Bayer process for extracting aluminium from bauxite.  In producing a magnet composition having the formula BaO.6Fe2O3 this waste material may be mixed with Fe2O3 and then with BaO, the mixture being heated at 1050 DEG  to 1100 DEG C., ground, moulded and reheated at 1200 DEG -1300 DEG C. in air.
Patent GB-941853-A (GB)
Title: Apparatus for producing a continuous tobacco rod
IPC: A24C5/18
Filed: 1959-11-23
Abstract: 941,853. Cigarette-making machines. K. KÍRBER. Nov. 23, 1959 [Dec. 2, 1958], No. 28645/63. Divided out of 941,852. Heading A2C. Apparatus for handling or conveying a stream of tobacco in the production of a continuous tobacco rod comprises a first feeder to supply a continuous coherent stream of tobacco and a suction belt conveyer device to receive said tobacco stream and to transfer it to a further conveyer. The feeder, which may be a wheel 3 (Fig. 1) or a belt (Fig. 3, not shown) comprises a duct with a porous or perforated base through which suction is applied to take up a previously produced tobacco stream. As shown, the stream is picked up from a belt 4 and delivered to paper P passing into the former of a continuous rod cigarette making machine, there being a perforated steel belt 24 to which suction is applied from a chamber 25. Specifications 798,308 and 941,854 also are referred to.
Patent GB-813351-A (GB)
Title: Improvements relating to electrical acceleration-measuring or vibration-measuring apparatus
IPC: G01P15/08
Filed: 1956-09-19
Abstract: 813,351. Electric correspondence control. DAIMLER BENZ A.G. Sept. 19, 1956 [Sept. 19, 1955], No. 28664/56. Addition to 767,424. Class 40 (1). An electrical acceleration measuring or vibration measuring apparatus, working with carrier frequency modulation and comprising a freely projecting tongue 4 serving as a vibratory element in an inductive or capacitative transmitter is characterized in that the tongue is cut out of a wall 3 disposed intermediate of opposite ends of, and formed integrally with, the housing 2 of the transmitter. The invention is a modification of the apparatus disclosed in the parent Specification and the tongue is cut from the wall 3 with a fine saw. As shown, the free end of the tongue has a core attached comprising outer soft iron portions 10 separated from each other by an intermediate non-ferrous portion 11. The core moves relatively to a pair of windings 12, 13 which are mounted on a disc 18 which is screwed to an annular shoulder of the wall 3. The movement of the core varies the inductance of the windings 12, 13. Opposite ends of the housing 2 are closed by a cover 1 and a base 1a and if desired the spaces between the intermediate base 3, the cover 1 and the base la can be filled with a liquid such as silicone oil and a damping plate can be attached to the tongue 1 in the space between the intermediate base 3 and the base 1a. The tongue is given a U- shape in cross-section by means of a milled recess 4a in its underside and it tapers in crosssection towards its free end. The transducer is used in a bridge circuit the two windings forming adjacent arms of the bridge and resistors other two arms. The bridge is supplied with an A.C. carrier frequency from an oscillator and variations of the inductance of the windings 12, 13 amplitude modulates the carrier frequency at the vibration frequency. The output -from the bridge after amplification is rectified by a phase-sensitive rectifier and after passing through a filter circuit is applied to an oscillograph or recording instrument. In a modification the core and the windings can be replaced by the parts of variable condensers.
Patent GB-842986-A (GB)
Title: Improvements in and relating to electrical circuit-breaker of the gas blast type
IPC: H01H33/32
Filed: 1956-09-19
Abstract: 842,986. Gas-blast switches. GENERAL ELECTRIC CO. Sept. 19, 1956 [Sept. 21, 1955], No. 28677/56. Class 38 (5). In a gas-blast switch having a first piston 52 connected to movable contacts 28 and a second piston 51 connected to a blast valve 40, the pistons abut one another when the contacts and valve are closed. The admission of gas under pressure to the cylinder 32 containing the pistons causes the second piston 51 to move to open the valve 40, the second piston 51 also moving the first piston 52 to open the contacts 28, 25. After a predetermined travel, the first piston 52 uncovers a by-pass 85 to admit pressure gas between the pistons to hold the first piston 52 and the contacts 28 in the open position and to move the second piston back to the position in which the blast valve is closed. The switch is of the kind in which the chamber 11 is maintained filled with gas under pressure and the valve 40 opens outlets extending from arcing electrode nozzles 38. In Fig. 1, the moving contacts 28 are connected by links to a crosshead 59 which is biased to the closed position shown by a compression spring 64, this spring closing the contacts when the cylinder 32 is vented to atmosphere. In this arrangement the cylinder 32 to the right of the piston 52 serves as a dashpot, but in Fig. 5 the dashpot action is provided by a further piston 131. In this Figure, the moving contacts are biased by overcentre springs 125 and the contacts are reclosed when the cylinder 32 is vented to atmosphere by the pressure gas in the chamber acting on the piston 131 which has a larger working surface on its right-hand side. The switch is controlled by a two-way valve 77 which is moved from the position of Fig. 1 to that of Fig. 4 by a spring 79 when a protective relay 83 or push-button switch 82 is operated to energize a solenoid 81 and release a latch 80. In the latter position, gas is supplied through a port 75 and a duct 72 to the cylinder 32 to open the contacts. To reclose the contacts, the valve 77 is moved up to connect the duct 72 to atmosphere and is relatched when a solenoid 94 is energized on the closing of a push-button switch 95. The solenoid also closes contacts 96 to energize an " anti-pumping " relay 97 which closes contacts 99a to complete a holding circuit for itself and opens contacts 98 to de-energize the solenoid 94, so that repeated reclosures on to a fault, whilst the switch 95 is maintained closed, cannot occur.
Patent GB-1099208-A (GB)
Title: Electrical connector for flat conductor cable
IPC: H01R12/61
Filed: 1966-06-27
Abstract: 1,099,208. Tape cable connectors; edge connectors for printed circuit boards. AMP Inc. June 27, 1966 [July 7, 1965], No. 28681/66. Heading H2E. Contact is made with a conductor of a tape cable by leading the cable through an opening 10 in an insulating block 8, so that the conductor lies in a groove within the opening, in contact with a conductive bar within the groove, and inserting wedge 18 to force the conductor and bar together. The bar carries projections which pierce the insulation of the conductor and contact it, preferably by causing a cold flow of the plastics insulation of the conductor. Rounded points to the projections prevent them from damaging the conductor. Each of the conductors of a cable may be contacted in this way in a single connector, and the contact bars may be U-shaped, with two sets of projections, so as to contact conductors of two cables, each in a separate opening 10. Alternatively, the projecting ends of the contact bars may be adapted to carry wires, or to enter sockets, or may carry spring contact arms to engage the conductors of a printed circuit card when this is inserted into a suitable cavity in the insulating block. Connectors of this kind may be made to engage a tape cable either at its end or intermediate its ends, with suitable modification of their component parts.
Patent GB-1389924-A (GB)
Title: Read only memory and matrix therefor
IPC: G11C17/02
Filed: 1972-06-20
Abstract: 1389924 Read-only stores SCIENTIFIC CORP DIGITAL 20 June 1972 [21 June 1971] 28770/72 Heading G4A Inductive coupling is provided between looped pairs of two conductors, e.g. 32, 33, and looped pairs of column conductors 21, 22 at every intersection, the coupling being such as to induce opposite polarity signals in the sense conductors from intersections at which different binary values are stored. In the embodiment shown, the column or row conductors in each pair, e.g. 21, 22 or 35, 36 are displaced away from each other in the region of an intersection to provide short sections 23-26 or 37-40 parallel to the row or column conductors. A binary 1 is represented by the provision of a non-magnetic, conductive film 44 at selected intersections, the directions of the induced currents being shown by the arrows. In another embodiment, Fig. 3 (not shown), the coupling at each intersection is provided by a pair of films outside the row loop but inside the column loop or outside the column loop but inside the row loop. The matrix may be formed from stacked insulating layers with etched conductor patterns forming a memory plate on to which an insulating plate carrying a pattern of films 44 is releasably attached so that the memory contents can be changed. A number of matrices may be stacked together each pair of sense conductors forming a closed loop threading a ferrite transformer core. Preferably, the cores are staggered in alternate matrices to allow closer stacking and each set of cores associated with corresponding sense loops in the matrices is threaded by a common secondary sense loop having an equal number of cores on each limb whereby induced noise signals are cancelled.
Patent GB-830701-A (GB)
Title: Apparatus for isolating oil-polluted water surfaces and oil fires on the surface of water, especially in harbour basins
IPC: E02B1/00
Filed: 1957-09-13
Abstract: 830,701. Submerged pipes. SCHUBACK, G. Sept. 13, 1957 [Sept. 13, 1956], No. 28872/57. Class 68(2) [Also in Groups XXVIII and XXIX] Apparatus for use in isolating areas of water polluted, e.g. with oil, and for isolating oil fires on the surface of the water comprises a flexible conduit 8 having apertures 10 and composed of separate sections 8<SP>1</SP>, 8<SP>2</SP>...joined by couplings 9 each having a shut-off valve 19. The conduit 18 is wound on a drum 18 on a vessel 7 and has its free end connected to a source of compressed air 20 on a neighbouring vessel 6. The vessel 7 is moved away from the vessel 6 to unwind the conduit 8 which sinks, in the desired position, to the bottom 4 e.g. of a harbour 1 in which it is desired to isolate the surface of oil, burning or otherwise. The conduit has sinker weights 14 and ground anchorage weights 15, the shut-off valves 19 on the couplings 9 being opened as the conduit runs off the drum 18. When the source of compressed air is switched on it escapes from nozzlelike apertures 10 in the conduit to form a vertical curtain of air rising through the water, a wall, composed of separate hummocks of water, providing a surface barrier to prevent the spread e.g. of the oil. The apertures 10 may be provided directly in the conduit 8 or, they can be separate nozzles 16, which have several very small apertures 10<SP>1</SP>, and are held in position by clips 17, Fig. 4. A two part clip 21, Fig. 6, comprises an upper part 22 having a nozzle 16 screwed therein, and a heavier lower part 23 which is bolted to the upper part 22 and acts as a sinker weight. The source of compressed air 20 and also the drum 18 with the conduit 8 may be mounted stationary on land, especially in the case of oil ports, or they can be mounted on land vehicles.
Patent GB-747583-A (GB)
Title: Improvements in and relating to oil dispensing cabinets
IPC: F16N37/00
Filed: 1953-10-20
Abstract: 747,583. Cabinet doors. BUDD, H. Nov. 16, 1954 [Oct. 20, 1953], No. 28973/53. Class 52(1). [Also in Group XVIII] The opening in the front wall 3 of an oil dispensing cabinet (see Group XVIII) is closed by a plate 4 slightly deeper than the opening and carried by side plates 5 pivoted to the sides of the cabinet at 6, whereby when closed the outwardly cranked bottom edge of the plate rests against the outside of wall 3 and the inwardly cranked top edge rests against the inside of wall 3. Co-operating lugs 9, 10 are provided on the plate and wall 3 for a padlock.
Patent GB-1008795-A (GB)
IPC: F22G5/10
Filed: 1962-07-27
Abstract: 1,008,795. Forced flow steam boilers. SULZER FRERES S.A. July 27, 1962 [July 27, 1961 (3)], No. 29034/62. Heading F4A. A forced-flow, once-through supercritical pressure vapour generator has centre wall tubes 12 disposed as a partition in the combustion chamber 32 connected in series with and upstream of furnace lining water wall tubes 14. Below a certain part load a recirculation pump 10 draws working medium from an outlet leader 18 to which the water wall tubes 14 discharge, for recirculation through the centre wall and water wall tubes 12, 14 in order to prevent burning of the tubes by maintaining a certain minimum flow therethrough. Fresh feed from a feed pump 22 mixes with the recirculation flow in a mixing vessel 20. The pump 10 is driven at constant speed and its delivery is regulated only by the pressure conditions prevailing in the system and by its own pressure characteristics; these are such that with increasing through-flow circulation decreases and ceases altogether at a certain part load. Above this load a check valve 88 prevents reverse flow through the pump and recirculation line 60. The pump 10 may be installed in the throughflow part of the system upstream of the centre wall and water wall sections, Fig. 9 (not shown), between these sections, Fig. 12 (not shown) or downstream of the water wall section, Fig. 13 (not shown). A second pump may be provided in parallel with the pump 10, Fig. 14 (not shown) and valves may be provided to allow flow through both these pumps above the load at which recirculation ceases or for isolation purposes. Where the vapour generator is provided with a convection heated reheating surface there is a tendency for the reheat temperature to fall with decreasing load and this tendency is partly offset by the recirculation of working medium. To provide further control of the reheat temperature the recirculation of working medium may be combined with recirculation of the flue gases, Fig. 16 (not shown) or with positioning of the combustion zone within the combustion chamber by means of tilting burners, Fig. 18 (not shown) or by means of varying the firing of vertically spaced burners. Specifications 552,747, 598,141, 768,201, 831,175, 1,008;791 and 1,008,793 are referred to.
Patent GB-230790-A (GB)
Title: Improvements in the manufacture of combustible agglomerates
IPC: C10L5/22
Filed: 1924-12-04
Abstract: 230,790. Thoumyre Fils. March 12, 1924, [Convention date]. Composition fuel. - In agglomerating coal by means of hydrocarbons, liquid or liquefied hydrocarbon, e.g. coal-tar pitch, mazout, or tar, from a vat a is introduced into a steam pipe d leading to a superheater c whence the mixture of superheated steam and vaporized hydrocarbon passes to the mixer f containing coal or coal and coaltar pitch. The hydrocarbons are stated to be distilled in the superheated steam so that they penetrate the mass in the form of vapours of oils containing in suspension particles of heavier products resulting from this distillation.
Patent GB-512143-A (GB)
Title: Improvements in copper base alloys
IPC: H01H1/025
Filed: 1937-11-19
Abstract: 512,143. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. (Mallory & Co., Inc., P. R.). Nov. 19, 1937, No. 29169. [Classes 72 and 82 (i)] An alloy which is subjected to age-hardening by heating to 700-1000‹C. for, e.g., 10-30 minutes, quenching and reheating to 300-600‹C. for, e.g., 10-30 minutes without intermediate working, comprises 0.1-10 per cent. of cadmium, 0.6-7 per cent. of nickel (which may be wholly or partly replaced by 1-10 per cent. of cobalt), 0.01-5 per cent. of silicon and the remainder of copper. Up to 5 per cent. of one or more of silver, zinc, calcium, lithium, tin, manganese, iron, titanium and phosphorus may also be present. The alloys may be hot or cold worked prior to the heat-treatment. In making the alloys the constituents, including a part of the copper, are mixed, compressed into briquettes which are coated with slag and added to molten copper. Deoxidizers, fluxes, degasifying reagents may be added. The alloys are suitable for make-and-break contacts, for wheels, wires or shoes for trolleys, commutator segments, collector rings and welding electrode dies. Reference has been directed by the Comptroller to Specification 288,314, [Class 72].
Patent GB-342744-A (GB)
Title: Improvements in or relating to x-ray installations
IPC: H05G1/30
Filed: 1929-09-26
Abstract: 342,744. R÷ntgen-ray a p paratus. DICKER, S. G. S., 20, Holborn, London.- (Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 6, Emmasingel, Eindhoven, Holland.) Sept. 26, 1929, No. 29211. [Class 98 (i).] To regulate the current supply, an X-ray tube anode circuit includes a variator, i.e. a conductor having within a definite region of voltage a resistance proportional to the voltage across its ends so that the current passing through it remains substantially constant. The variator may comprise a wire of iron, tungsten, or molybdenum in a suitable gasfilling such as hydrogen, nitrogen, or a rare gas. In one form the primary circuit of the transformer 2 is connected in series with the variator 6 and the secondary of an auxiliary regulating transformer 5. A second variator may be used to maintain constant the filament current. The device may be used for therapeutical purposes or for radiographic examinations.
Patent GB-959778-A (GB)
Title: Circuit arrangements for the production of a train of advance pulses
IPC: H03K5/13
Filed: 1960-08-25
Abstract: 959,778. Automatic phase control systems. FERNSEH G.m.b.H. Aug. 25, 1960 [Aug. 25, 1959], No. 29353/60. Heading H3A. [Also in Division G3] Pulses B are produced with leading edges in advance of those of reference pulses A by a predetermined time automatically rendered constant. Negative-going reference pulses A of repetition period T switch over a multivibrator 1, 2 and reduce the grid potential C of valve 2 by a fixed amount, but capacitor 5 then charges through resistor 8 from a fixed potential P until after a constant time (T-t) valve 2 again conducts and after a further time t is cut-off again by the leading edge of the next pulse A. An advance negative going pulse B (advanced in time by its own duration t) is therefore generated at the anode circuit of valve 2 or a parallel coupled valve 10. If the recurrence period T of A varies the output pulses B of valve 10 will tend to vary in duration t (T-t being constant) but since the voltage at integrating point P is fed back to C to vary the instant of re-conduction of valve 10 the duration (advance time) t is made constant. In Fig. 4 positive-going pulses D charge negatively, through a valve 23, and capacitor 24 and rectifier 25, a timing capacitor 4 which discharges through resistor 7 from point P until valve 10 is again conductive whereupon leading edges of negative output pulses B<SP>1</SP> are generated and terminated after a further time t by the next following pulse D. Pulses B<SP>1</SP> are therefore generated of duration and advance timing t, and this duration t is maintained constant by feedback from P to the grid of valve 10, and by the voltage at P, through valve 31, varying the anode voltage of valve 23 and hence the charge and voltage applied to capacitor 4 at each pulse D. In a modification, with valve 31 omitted, advance pulses B<SP>1</SP> with steep leading-edges are produced by applying the anode voltage of valve 10, through a phasereversing valve and forwardly conductive rectifier diode, to the grid of valve 10 as positive feedback. The advanced pulses of constant duration may be used as television receiver blanking pulses during the flyback intervals.