baber/WOPTO huggingface dataset:
Patent GB-884941-A (GB)
Title: Improvements in strengthened parts of garments
IPC: A41D27/06
Filed: 1959-04-22
Abstract: 884,941. Laminates. STEVENS, G. W. H. April 14, 1960 [April 22, 1959], No. 13718/59. Addition to 732,040. Class 140. [Also in Group IX] A waistband may consist of two layers of fabric interwoven or sewn together along lines h to form tubes a into which loops of monofil are drawn by means of a hook as shown at c; alternatively, a length of polymer monofil such as nylon or polypropylene may be threaded to and fro through the tubes as shown at d, the ends e being turned back into a piece of tubing f and then tucked into a tube a. When the tubes a are made by sewing, unconnected margins may be left which can be turned in and sewn after the monofil has been inserted.
Patent GB-1483997-A (GB)
Title: Coating for a metal surface in an hydraulic fluid system
IPC: F16L11/08
Filed: 1976-04-05
Abstract: 1483997 Laminates TAURUS GUMIIPARI VALLALAT 5 April 1976 [3 April 1975] 13720/76 Heading B5N [Also in Division F2] A laminate resistant to phosphate based fluids such as are used in hydraulic systems comprises a first layer of either polychloroprene or natural rubber, a second transition layer comprising a mixture of 50-80% ethylene propylene terpolymer and 50 to 20% polychloroprene or natural rubber and a third, phosphate-resistant layer of ethylene-propylene terpolymer. The polychloroprene or natural layer readily adheres to metal surfaces such as the core of hoses. The phosphate resistant layer may be produced from EPDM based rubber by extruding or calendering. The transition layer may be formed by impregnating textiles, e.g. rayon, cotton, polyamides or polyesters with a 10- 20% organic solution of EPDM-polychloroprene mixture or by calendering the EPDM- polychloroprene layer in to the textile layer. The layers of polychloroprene are produced by calendering. The three layers of the laminate are joined by conventional means and may be used to form metal reinforced hoses.
Patent GB-1274637-A (GB)
Title: Process for disposal of oxides of nitrogen
Inventor: REED ROBERT D
IPC: B01D53/56
Filed: 1970-03-20
Abstract: 1,274,637. Disposal of oxides of nitrogen. JOHN ZINK CO. 20 March, 1970 [27 March, 1969], No. 13736/70. Heading C1A. Oxides of nitrogen contained in waste gases are converted to N 2  by mixing with an incompletely burned fuel (i.e. a fuel burned with only 85 to # 100% of the stoichiometric requirement of O 2 ) in a ratio such that there is an excess of oxidizable material over nitrogen oxides, cooling the resultant mixture to 1200-2000‹ F., adding excess O 2 ; sufficient to oxidize the remaining fuel but insufficient to produce more than 50 p.p.m. nitrogen oxides. The preferred fuel is methane, but natural gas, coal, oil, and liquid hydrocarbons are also mentioned. The product gas, containing CO 2 , H 2 O and N 2  may be vented to the atmosphere, preferably after cooling. In the described embodiment, the waste gases containing oxides of nitrogen are passed into the vicinity of a burner to which methane is supplied, and a cooling liquid or gas (e.g. N 2 , CO 2  or H 2 O) is supplied above the burner. The gaseus products are thereafter mixed with air and cooled directly with a further quantity of the cooling liquid or gas.
Patent GB-879743-A (GB)
Title: Improvements to the attachment of insulators to their pins
IPC: H01B17/20
Filed: 1959-04-22
Abstract: 879,743. Insulators. ELECTRICITY TRUST OF SOUTH AUSTRALIA. April 22, 1959 [April 28, 1958], No. 13767/59. Class 36. A pin 9 is secured in an insulator 8 by a resilient plastics sleeve 1 which is tapered externally and screw threaded to suit the thread in the insulator. The sleeve is forced over the pin and the insulator screwed on. Grooves 10 enable the sleeve the better to grip the pin 9.
Patent GB-419259-A (GB)
Title: Improvements in devices for filtering liquids
IPC: B01D35/12
Filed: 1934-05-08
Abstract: 419,259. Filters. HANSLIN, M., and KYBURZ, C., 79, Avenue des Champs- ElysÚes, Paris. May 8, 1934, No. 13893. Convention date, May 8, 1933. [Class 46.] A filter comprises a number of flat hollow superposed strainers embedded in filtering- material 50, alternate strainers 37, 38, 39 being connected to a space 36 with liquid inlet 21 and the other strainers 40- 43, to an outlet pipe 45. The strainers are of wood or metal covered with cloth or gauze. The hinged lid 5 of the container is fitted with a manometer 9, a relief valve 17 and a handle 13. The filtering material is supported on a perforated false bottom 44 which provides a drainage space beneath. A battery of similar filters may be provided with connections for use in series or parallel. The connections are such that when operating in series one filter may be cut out for cleansing.
Patent GB-137004-A (GB)
Title: A Combined Carrier and Cycle Frame.
Inventor: DEPOE WILLIAM JOHN
IPC: B62K7/00
Filed: 1919-06-02
Abstract: 137,004. Depoe, W. J. June 2, 1919. Carrier velocipedes.-The frame is divided or looped between the cycle head 9 and the saddie pillar to accommodate a goods carrier 16; or the carrier may be formed integrally with the cycle frame. The rear end 23 of the carrier forms a shield for the legs of the rider. To facilitate steering, pivoted links 10 connect the bar 8 to a handle-bar 13 carried by a rod 14 swivelling on a bracket 15 secured to the carrier. The arrangement ensures a low centre of gravity for the loaded machine, with consequent stability.
Patent GB-647781-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F01C21/08
Filed: 1947-05-23
Abstract: 647,781. Revolving cylinder pumps. BAR NA, N. May 23, 1947, No. 13926, Convention date, May 24, 1946. [Class 102(i)] In a revolving radial cylinder pump having a central fixed distributing valve the pistons 4 are spherical and retained against the cam track 6 by centrifugal force and the pressure of a boost pump 15 rotating with the rotor and having helical vanes. The cylinders have spherical ends to reduce the clearance space and the outer ring 2 of the rotor is made of hard material. Ribs 17 prevent swirling of the liquid in the casing. In a modification the rotor has vanes sliding in radial slots and co-operating with the cam track to form the boost pump. In a further modification shown in Fig. 6, each cylinder contains two cylindrical pistons 23, 24, to increase fluid-tightness and the outer pistons 24 in addition perform. the function of the vanes of the vane boost pump.
Patent GB-179828-A (GB)
Title: An improved stand for engines, gear boxes and the like
IPC: B25H1/00
Filed: 1921-05-18
Abstract: 179,828. Warde, C. A. E. May 18, 1921. Benches, work.-A stand for engines and other appliances consists of a rectangular base of tubular members, with elbows at two corners, in which are mounted the feet of two tubular standards forming one side frame, and slidable tubular T-pieces with locking set-screws on the transverse sides of the base in which are mounted the tubular standards forming the second and adjustable side frame, and side frame standards converging upwards and fitting into castings or equivalents, carriers provided with clamping- means being pivoted to the castings. The base a, constructed of tubular members, carries the side frames ff, dd by means of the tubular T- pieces gg and the elbow pieces ee respectively, the former being clamped to the base if required by means of set-screws. The standards ff, dd fit into castings i, to which are pivoted two carriers j, Fig. 7, by means of the bolt k, setscrews l clamping them in position. To the carriers are bolted bearers n of H-section or of two parallel plates with spacing pieces n*, Fig. 7, the parallel plates being horizontal or vertical as is required for bolting the engine or other work to them. The base of the stand is supported by two wheels c and two spherical castors b.
Patent GB-1447900-A (GB)
Title: Educational device
IPC: F02B3/06
Filed: 1974-03-29
Abstract: 1447900 Educational appliances XEROX CORP 29 March 1974 [29 March 1973] 13978/74 Heading G5G Educational apparatus comprises a simulator board 1 having a surface of magnetically attractive material and provided with graphic indicia 2 to 5 representative of equipment, systems or diagrams relevant to the subject-matter under study; a plurality of manipulative pieces (Figs. 3A and 3B, not shown) individually bearing graphic indicia logically relatable to the indicia present on the board 1; and an audiovisual instructional means, the said pieces being adapted for manipulation on the surface of the board 1, upon which they are held by magnetic attraction, in response to a programmed audiovisual presentation. The apparatus may include a display board of magnetically attractive material upon which the manipulative pieces are stored, and a compartmentalized case for accommodating the various components. The instructional means may comprise tape recordings with associated slides or film strips, and may also include student work sheets. The particular embodiment described relates to the study of a domestic heating system, but the Specification mentions many other occupational study areas, in electrical, automatic and refrigeration engineering, for example, suitable for the practice of the invention.
Patent GB-127825-A (GB)
Title: A Process for Producing Indurated Compounds from Lac or its Derivatives.
Inventor: SIMONSON WILLIAM WESLEY
IPC: C09F1/00
Filed: 1919-06-02
Abstract: 127,825. Simonson, W. W., and Blair, L. van D. June. 1, 1918, [Convention date]. Resins and resinous compounds.-In a process for indurating and toughening lacs and lac derivatives, the natural lac is freed from impurities and then rendered wax-free by treatment in a usual manner with hot caustic soda, kaolin being used as a clarifying agent. Induration is effected by mixing the clarified solution, having no free caustic soda, with lead acetate and sufficient water to precipitate in flakes a shellac-lead compound which, when washed and dried, is an indurated product. To obtain a tough and further indurated product, this shellac-lead compound is heated and fused and, if applied to an article in a fused state and heated, will adhere strongly thereto. Heating after fusion eliminates water, produces polymerization or condensation, and increases the viscosity of the fused, and adherence of the solidified compound. The shellac-lead compound may be mixed with wax-free shellac obtained by treating the clarified caustic soda solution with hydrochloric acid, and the mixture subjected to heat as described, the temperature of fusion of the mixture being varied by varying the proportions of the components and by the substitution of different metals for lead in the metallic derivative. Barium, calcium, magnesium, zinc, and other metals may be substituted for lead. When a product having a low initial fusion temperature is desired, a lac without a metallic substitution may be subjected to the thermal process as described. The fluency of the compound may be varied by introducing inert substances such as talc and calcium sulphate. Charcoal may also be added to shorten the time necessary to secure the desired induration. The shellac-metal compound may be prepared by dissolving the shellac in alcohol or acetone, adding the desired metal hydrate, and evaporating the solvent. The indurated product either before or after having been fused, may be mixed with a solvent and applied as a varnish. Reference has been directed by the Comptroller to Specification 16800/04.
Patent GB-796691-A (GB)
Title: Improvements relating to dough dividing machines
IPC: A21C5/00
Filed: 1955-05-16
Abstract: 796,691. Dough-dividing machines. CATLING, R. W. C. May 3, 1956 [May 16, 1955], No. 14034/55. Class 87(2) Dough is fed along a conveyer band 9 beneath a roller 10 and the rolled strip divided by a rotating knife 5. The thickness of the strip is adjusted by pivoting the band 9 about a shaft 6 and holding it in the adjusted position by inserting a pin through holes 23. In a modification, Fig. 3 (not shown) the conveyer may be adjusted by a screw. The drive for the knife, the roller 10 and the conveyer band are geared together. The nip between the roller 10 and the band is provided with side plates 20. Dough is removed from the roller 10 by a scraper 21. The dough pieces are removed from the band by a guide 22 or in the construction shown in Fig. 3, by a knife associated with a roller.
Patent GB-234829-A (GB)
IPC: D06P5/12
Filed: 1924-03-01
Abstract: White or coloured effects are produced upon fabrics by padding with an ester of a leuco vat-dye (Specification 186,057) together with an oxidizing agent effective only in an acid medium, printing with a reducing agent other than a hydrosulphite preparation, and developing the unprinted parts by passage through acid.  Suitable reducing agents are sodium sulphite and thiosulphate.  For producing coloured reserve effects there is added to the reducing agent any dyestuff, other than a vat-dyestuff, capable of withstanding the reducing agent: classes of dyestuffs specified are basic dyestuffs, mordant dyestuffs, dyestuffs which can be fixed by means of albumen, and nitrosamine dyestuffs.
Patent GB-119102-A (GB)
Title: An Improved Memorandum Device for Attaching to the Wrist.
Inventor: STURROCK JOHN LENG
IPC: A44C5/00
Filed: 1918-03-28
Abstract: 119,102. Sturrock, J. L. March 28, 1918. Memorandum appliances, securing to wrist.-In a memorandum device for attachment to the wrist of the type comprising a wristlet strap removably attached to a metal frame, which is open at one end for the insertion and removal of cards &c., and has an open face to enable the cards to be written on when in the frame, the strap 7, which is threaded through tabs 5 and 6 on the frame, is provided with an enlargement 9 adapted to be disposed between the tabs to prevent movement of the frame on the strap.
Patent GB-579274-A (GB)
Title: Improvements relating to electrical calculating or measuring apparatus
IPC: G06G7/22
Filed: 1942-10-07
Abstract: 579,274. Valve amplifying circuits. COSSOR, Ltd., A. C., and BEDFORD, L. H. Oct. 7, 1942, No. 14082. [Class 40 (v)] [Also in Group XIX] The voltage is produced in an iron-cored inductive device, is caused to be in phase with and proportional in amplitude to the input voltage, by applying the voltage through an amplifier and providing negative feedback from a secondary winding linked with the flux produced in the device by a primary winding, and nearly equal in magnitude to the input voltage. As shown, the device is coupled to the amplifier by a transformer 23 arranged as a cathode load and tuned by a condenser 14. Step-up or step-down transformers or auto-transformers 16 of high impedance may be included in the feedback path which alternatively may include resistance networks or thermionic amplifiers. The amplifier 12 may be preceded by a transformer 18, or preferably by a high gain thermionic amplifier. The invention is particularly applicable to a low-frequency iron-cored goniometer or. " magslip resolver " comprising relatively rotatable stator and rotor elements each having an'iron core and two windings arranged 90 degrees apart. In this way, when a voltage is applied to one winding, say on the stator, a voltage is produced in one of the windings of the other element, the rotor, proportional to the sine or the cosine of the angle to which the rotor is set relatively to the stator and when a voltage is applied to the other stator winding, additional voltages are produced in the rotor windings proportional respectively to the cosine and sine of the angle of setting. The use of the negative feedback amplifier prevents the non-linearity of the iron varying the phase angle when the voltages applied to the windings are varied. The magslip resolver, as shown, is applied to an electrical calculating apparatus for developing output voltages Ul, U2, so related to the input voltages VI. V2 that U1=V1 Cos #-V2 Sin # and U2=V1 Sin #+V2 Cos # where # is the angular setting of the rotor. As shown, the voltages U1, U2 are measured by nulling against voltages tapped from potentiometers 27, 28 to avoid fluctuations in the source 22. The Provisional Specification also describes an arrangement in which positive feedback is used with a cathode follower valve so proportioned as to give the valve slightly less negative resistance than the positive resistance of the cathode load. Thus, by the substantial elimination of the resistive component the phase angle is rendered substantially independent of the magnitude of the inductance.
Patent GB-858974-A (GB)
Title: Improvements in or relating to electromagnetic devices
Inventor: CLIFFORD CECIL FRANK
IPC: G04C3/16
Filed: 1958-05-02
Abstract: 858,974. Electric clocks. HORSTMANN CLIFFORD MAGNETICS Ltd. March 11, 1959 [May 2, 1958], No. 14088/58. Class 139 [Also in Group XXXV] A constant speed electric motor, e.g. for driving a clock, comprises a permanent magnet rotor and a field coil energised from an amplifier whose signal input is derived from a second coil influenced by the rotor flux. The speed is determined by the resonant frequency of a resilient member, which may be either the rotor or the signal coil assembly. As shown in Fig. 1 the rotor has resilience and comprises two permanent magnet discs 1, 2 attached to a thin shaft 3. Voltages induced in the coil 15 due to rotation of the disc 2 between soft iron pole pieces 16, 17 are amplified by a battery powered transistor amplifier 50 to energise the field coil 7 on similar pole pieces 8, 9, both coil assemblies being attached to a rigid frame 25. Twisting of the shaft 3 allows relative oscillation between the discs which decreases the driving effect of the field until a rotational speed is reached at which the oscillations are at resonance. A fine adjustment of speed is obtained by arranging a spring of magnetic material adjacent to one rotor with a screw to adjust the air gap (Fig. 10, not shown). The "runaway" speed is limited to #2 times the desired speed by a capacitor connected in parallel with the signal coil. A known type of device (not described) to prevent reverse rotation may also be incorporated. Alternative forms of rotor are described, in one of which (Fig. 7, not shown) the discs are connected by three leaf springs which are secured to the shaft by a collet at a nodal point, and in a further modification (Fig. 8, not shown) one disc is many times heavier than the other and becomes the collet. Fig. 11 shows an arrangement in which the signal coil 15 and its pole pieces 67, 68 form the oscillating member, the rotor in this case being a single disc 60. The pole pieces are attached to those of the driving coil 7 by crossed leaf springs 76, 77 which also serve as electrical connections to the signal coil. The driving coil assembly is rigidly secured to a base plate 65. Three alternative amplifier circuits are described, one employing a single transistor, the others, two connected in push-pull. It is stated that the device may be used as an escapement mechanism. It is stated in the Provisional Specification that the motor may be synchronised with a.c. mains by applying a small mains voltage to the amplifier, and that the speed can also be finely adjusted by varying the phase of the driving current relative to the signal voltage, or by angular displacement of one rotor relative to the other, in the first embodiment.
Patent GB-1461637-A (GB)
Title: Keyboard apparatus
IPC: H04L13/16
Filed: 1974-03-29
Abstract: 1461637 Keyboards with coded outputs COLLIMATION Inc 29 March 1974 [30 March 1973] 14108/74 Heading G4H Each key 19 of a keyboard is connected to an apertured mask 40, operable on depression of the key to block selected light beams aimed at an array of photocells 26. Light from a source 20 is reflected by a parabolic mirror 21 through a series of fixed masks 13 containing an identical array of apertures 24 to produce collimated light beams 22 which are reflected by a mirror 25. Each pair of adjacent masks 13 forms a space in which a mask 40 is located, extensions 42 on each mask 40 moving in one of four channels formed in masks 13 (the keys are staggered in groups of four). The photocell array is connected to a circuit board 29 which passes through notched apertures 30 in masks 13.
Patent GB-1121902-A (GB)
Title: Improvements in and relating to non-adherent medical dressings
Inventor: GUNN JOHN STAPLETON
IPC: A61L15/24
Filed: 1965-04-02
Abstract: A surgical dressing comprises a sheet of thermoplastic material having a regular pattern of bosses or cavities and which has been formed into a non-woven net by being stressed in two different directions, the net being impregnated or coated with a hydrophobic substance such as paraffin or with a hydrophilic substance such as polyethylene glycol.  The thermoplastic net may be of an ethylene or propylene polyemr or copolymer and may be transparent.  The dressing is said to be non-adherent to a wound.ALSO:A surgical dressing comprises a sheet of thermoplastic material having a regular pattern of bosses or cavities and which has been formed into a non-woven net by being stressed in two different directions, the net being impregnated or coated with a hydrophobic substance such as paraffin or with a hydrophilic substance such as polyethylene glycol.  The thermoplastic net may be of an ethylene or propylene polymer or copolymer and may be transparent.  The dressing is said to be non-adherent to a wound.
Patent GB-1497934-A (GB)
Title: Optical communication system
IPC: H04B10/272
Filed: 1975-04-07
Abstract: 1497934 Light guides CORNING GLASS WORKS 7 April 1975 [8 April 1974] 14148/75 Heading G2J An optical communication system comprises an optical coupler for low loss, uniform coupling of a portion of the signal propagating in any one of a plurality of optical signal transmission lines 11-17 to each of the remaining transmission lines. The coupler comprises means e.g. ferrule 18 for supporting the ends of the transmission lines 11-17 in a parallel bundled array 20 having a maximum crosssectional dimension D and a concave reflector 26 Fig. 1 or 31 Fig.2 so disposed that a portion of the signal radiating from any line 11-17 is reflected from the reflector 26 or 31 back into each of the remaining lines. The reflector is symmetrical about an axis passing through the centre of the bundled array and has a surface (e.g. sphere, paraboloid, hyperboloid or ellipsoid) defined by:- k being given by and p being given by p = D/2tan#, where # is the acceptance semi-angle In Fig.1, the reflector is the front surface 24 of a layer 26 on a substrate 27. In Fig.2, the reflector is a layer 31 on the rear surface of a transparent body 32, index matching fluid 20' being provided where shown.  Ferrule 18 may be of brass or glass and have a circular or hexagonal aperture 21 in which the lines are potted e.g. by epoxy before the end-faces are polished with grinding paper.
Patent GB-120200-A (GB)
Title: Improvements in or relating to Tilting Furnaces.
IPC: F27D99/00
Filed: 1918-09-02
Abstract: 120,200. Stein et Cie, C. M. Oct. 24, 1917, [Convention date]. Hinge and swivelling joints.-The gap between the fixed and moving parts of a tilting furnace is covered by a band of material, which may be secured at one end to a fixed bracket 9, and stretched at the other by a counterweighted lever 10.
Patent GB-218456-A (GB)
Title: Improved device for cutting screw threads
IPC: B23G5/00
Filed: 1923-05-30
Abstract: 218,456. Pankhurst, V. H. Hayes-. May 30, 1923. Filing apparatus, reciprocating.-In a device for restoring, recutting, or prolonging the threads of screws a file 5 is mounted in a holder 1 of L- section having slots 2 adapted to receive clamping claws 3 carried on stems 4 and adjustably secured by means of nuts 6 and recessed washers 7. The portion 8 of the holder acts as a tracer which engages the thread of the screw to be re-cut. The file 5 may have all its cutting faces arranged to cut one form of thread, or each may be shaped to cut a different thread, the cutting portions being separated by longitudinal grooves 10. In a modification, Fig. 9, the file may be held in a frame of channel-section by means of screws 9.