baber/WOPTO huggingface dataset:
Patent GB-1461410-A (GB)
Title: Dispensing container for plastics bags and the like
IPC: B65D83/08
Filed: 1974-03-14
Abstract: 1461410 Cartons IMPERIAL CHEMICAL INDUSTRIES Ltd 23 May 1974 [27 June 1973 14 March 1974] 30512/73 and 11441/74 Heading B8P A container for dispensing plastics-film articles, such as bags, has a dispensing opening 6 and a ridge 7 which raises the centre of a stack of film articles to facilitate their withdrawal one by one. Flaps 4 project inwardly of the top of the container to press down on the sides of the articles. In another embodiment, suitable for use in a supermarket, the dispenser has walls of solid or open construction and which may be of wood or metal and the top wall is removable and drops as successive articles are removed. When made of cartonboard the container can be assembled with staples or adhesive tape. Separate members can be used to press down the sides of the articles or the articles can be secured to the base by ties.
Patent GB-623551-A (GB)
Title: Improvements in or relating to racks or the like for household or domestic use
IPC: A47L19/04
Filed: 1946-04-15
Abstract: 623,551. Shelves; racks. DENBY, E. April 15, 1946, No. 11467. [Classes 52 (i) and 52 (v)] [Also in Group VI] Supporting devices for plates and the like consist of a wire frame, to which are attached wire members supporting shelves or racks. A frame 1 of wire or strip has wire side frames 3 secured to it. Spaced parallel wires 6 are secured between the side frames to form shelves, whilst the transverse wire joining the frames 3 is bent into loops 7 to support spoons or the like. The back frame 1 is provided with suspension lugs 2. In a modification, Fig. 3 (not shown), the side frames are adapted to support wire baskets, whilst the lower transverse wire is bent out to form a tray support. In a third embodiment, Fig. 2, the side frames 8 support cross frames 12, 13, within which are mounted wire helices 14, 15 to form dish supports.
Patent GB-114739-A (GB)
IPC: H01T1/14
Abstract: 114,739. Giles, G. July 13, 1917. Safety apparatus for the discharge of high potentials.-Relates to apparatus of the kind in which the line l is connected to earth T through a spark-gap e<1>, e<2>, a high resistance R, and a series of spark-gap electrodes e<3> - - e<8>, coupled by small condensers c<3> - - c<7> to a common conductor t which is connected through the end electrode e<8> to the line. According to the present invention, means are provided for preventing a continuing discharge when the excess potential is comparatively small, comprising a thermal switch operated by the discharge current and arranged to cut out temporarily the condensers c<3> - - c<7> On the occurrence of any excess potential, the gaps c<1>, e<2>, e<3>, &c., break down in turn, and the discharge current, if continued for a certain time, expands the wire a, allowing a spring d to turn the switch arm b<1> about its pivot b, and opening contacts f, g. With these contacts open, much greater potential difference between the line l and earth T is required to start or to maintain the discharge, and in the absence of this condition the discharge ceases, the wire a cools, and the device is again ready for operation. Any device for realizing the heating effect of the current may be substituted for the hot wire.
Patent GB-841516-A (GB)
Title: A device for controlling the admission and direction of flow of air for the combustion of solid fuel in fire grates
Inventor: ASHBY SIDNEY GUY
IPC: F24B1/19
Filed: 1955-04-21
Abstract: 841,516. Fireplaces. ASHBY (ENGINEERS) Ltd., S. G. July 23, 1956 [April 21, 1955], No. 11481/55. Class 126. A firebrick unit of refractory material or cast iron for use in a solid fuel domestic fireplace, with or without a back boiler, to control the admission and direction of air for the combustion of fuel, has a through passage 3 provided between legs 1 and one or more further passages 5 at the front of the unit connected therewith. The front of the unit is recessed at 7 to provide a surface which slopes downwardly and inwardly towards the passage and grooves 6 may be provided at the front of the unit which lead to the entrance of passages 5.
Patent GB-1267351-A (GB)
Title: Improvements in plastics containers, methods of producing them and tooling apparatus therefor
Inventor: SCHNEIDER JACK MARVIN
IPC: B65D1/26
Filed: 1968-03-08
Abstract: 1,267,351 Moulding plastics. CALMEC EXTRUFORM Ltd. 6 March, 1969 [8 March, 1968], No. 11484/68. Heading B5A. [Also in Divisions A4 and F4] Tooling apparatus, for forming an opentopped container having a skirt depending from the rim to form a heat-insulating member, comprises a first female die 69, the 'interior of which may be connected to atmospheric pressure or vacuum via bores 81, the die 'being slidable within a bore 35, within which it may be retracted or projected, a peripheral clamp 25 to hold a sheet 100 of thermoplastic material over the die, a knife arrangement 27 to engage the sheet 100 between the die and the clamp, the interior surface of the knife defining the skirt of the finished container, a second female die 23 also having passages to connect its interior to atmospheric pressure or vacuum, the second die being movable to engage the knife, and define a mould cavity when thus -engaged, and a reciprocably movable assist plug 137 which may be projected into the first die to assist in forming the side and base walls of the container, as shown in Fig. 9. In operation the sheet 100 is clamped over the first die 69 which is projected upwards as shown in Fig. 6. The knife member is brought down on to the clamp, and the second die also and atmospheric pressure used to form the skirt against the interior 117 of the knife. The sheet is then forced against the interior of the second die to form the rim, and the assist plug projected into the first die to cause the sheet to form the side walls 'and base against the interior of the first die. Both vacuum and atmospheric pressure assist in this operation. The second die is then removed, the knife member caused to sever the sheet, and the finished container ejected from the first die.
Patent GB-654715-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H5/18
Filed: 1948-04-30
Abstract: 654,715. Snap-action switches. YOUNG, S. G. April 30, 1948, No. 11513/49. Divided out of 654,693. [Class 38(v)] A dead - centre switch comprises a movable contactmember in the form of a conductive snapper 7 which has twc end members 10 two interrupted longitudinal side members 8, and a non - interruptec central member 13 secured to the base at 11, and a forked operating member 3 having recesses 15 engag ing the oppose( ends of members 8, which, as shown in Fig. 5, are corrugated. In a modification, (Fig. 5A, not shown), the tongues 8 are bowed instead of corrugated, and in a further modification, Fig. 9, the member 7 is operated by a pivoted member 51a having rods 54 engaging the central member 13 on either side of a projection 50. In Fig. 7, the central member 13 is corrugated and the members 8 non-extensible, the operating member being a forked push-button 25, engaging between the ends of the members 8 and the adjacent end member 10 which is secured to the base, and in a modification (Fig 8, not shown), the operating member is a double-ended pushbutton. The dolly 3 may be mounted on a fixed pin or supported in a shaped seating in the body. The operating member may have compressible portions which are engaged by the contact-member 7.
Patent GB-108537-A (GB)
Title: Improvements in or relating to Progressive Rocking Horses.
Inventor: WILKINSON JOHN FRANKLIN
IPC: A63G15/00
Filed: 1916-08-15
Abstract: 108,537. Wilkinson, J. F. Aug. 15, 1916. Horse velocipedes. -A travelling rocking horse has fixed back legs provided with rockers 14, and front legs independently pivoted to the body, and provided with rockers 17 which may be swung forwards by the rider pulling on the reins 18. When the hoise is tilted backwards a pull on the reins moves the front legs from the position shown in dotted lines to that shown in full lines so that the horse advances a short distance when it rocks forward. By pulling on one rein only, the rider can steer the horse. In a modification the front legs are forced forwards by a spring and may be retracted by pulling the reins. The rockers 14 may be provided with rollers 31 to enable them to roll on the floor when the horse rocks forward. In a further modification, the straps 21 connecting the reins to the legs may be omitted, the legs of the horse being controlled by the feet of the rider
Patent GB-472851-A (GB)
Title: Improvements relating to lag barrel controlling devices of looms for weaving
IPC: D03C1/36
Filed: 1936-04-23
Abstract: 472,851. Dobbies &c. SCHEBESTA, G. April 23, 1936, No. 11548. [Class 142 (i)] Lag barrels F, G carried in stationary bearings and provided with ratchet wheels f, g, are rotated as required by catches D, E, on a lever A, A<1> operated by a crank, the engagement of the catches with the ratchet wheels being governed by a lever H weighted at h<1>, acting on projections d, e in the catches. The lever H is controlled by rollers &c. J on an indicator barrel or chain j, and when one of these acts on the lever H, the catch E is moved out of and the catch D into action. The chain barrel j<1> is rotatable by a pawl j<3> movable into engagement with ratchet teeth on the barrel under control of a finger k on a two-armed indicator lever K weighted at k<1> and controlled by rollers &c. f<1>, g<1> on pattern chains on the barrels F, G. These operate jack levers L, which may be used for cramming, fringing, putting extra weight on the beam or for controlling a selvage motion or a changebox motion. According to the Provisional Specification, the indicator lever may be controlled by a spring.
Patent GB-576653-A (GB)
Title: Method eliminating the coloration of glass obtained by electric melting
IPC: C03C1/00
Filed: 1941-09-09
Abstract: 576,653. Glass. LONG, B. Sept. 9, 1941, No. 11551. Convention date, Sept. 4, 1940. [Class 56] In the manufacture of glass by the passage of an electric current through a bath of vitrifiable materials, in order to prevent colouration due to the presence of reducing bodies remaining in suspension, materials which dissolve such bodies are added to the batch. Cadmium oxide or zinc oxide may be used for this purpose. The vitrifiable material is preferably given an oxidising character by the addition of nitrates, arsenious anhydride or antimony oxide.
Patent GB-514304-A (GB)
Title: Improvements in or relating to electrical networks suitable for use as inter-stage coupling networks in electron discharge tube amplifiers
IPC: H03F1/50
Filed: 1938-04-14
Abstract: 514,304. Electric filters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and RUST, N. M. April 14, 1938, No. 11571. [Class 40 (iii)] An intervalve coupling for amplifiers giving uniform amplification over a wide range of video frequencies or high frequencies comprises terminating resistances R, which may be the inter-electrode resistances of the valves and are shunted by the inter-electrode capacities, and two inductances L1L2, L1L2 which are coupled by a condenser C<1> connected to tapping points on them as shown. The Specification gives a theory enabling the design of the filter to be calculated so as to'match, at twofrequencies in this working range, the impedances of the two asymmetrical sections formed by dividing the coupling into two equal halves. The amplifier shown is for medium or long wave-lengths. In a television intermediate-frequency amplifier, Fig. 2a (not shown), the shunt arms may resonate at frequencies in the attenuation band and near the cut-off frequencies. Specification 514,298 is referred to in the Provisional Specification.
Patent GB-763277-A (GB)
Title: Improvements in level indicators for supervising the level of agglomerate materials
IPC: G01F23/24
Filed: 1954-04-22
Abstract: 763,277. indicating the level of material in piles; hoppers. EDELMAN, A., and EDELMAN, J., [trading as PHOTOBELL CO.]. April 22, 1954 [April 23, 1953], No. 11652/54. Classes 78 (1) and 78 (4). [Also in Groups X and XXXVI] A level indicator for indicating the level of an agglomeration of lumpy or abrasive material consists of two separate units connected by an electric cable, one of which is situated in a remote location and includes electric power supply means for generating high-frequency electric current and signal means, while the other is situated in a leveldetecting position and comprises a casing mounted adjustably in direct physical contact with the material, capacitance bridge means disposed within the casing and supplied with high-frequency current from the power supply means, and a single probe element protruding from and electrically insulated from the casing and forming together with its surroundings, including the material, a capacitance of the bridge means which varies according to the spatial relationship between the probe and the material, causing a control signal to be fed to the signal means. As shown, the probe element 17 is connected, in parallel with an adjusting condenser 16, in one arm of a highfrequency bridge circuit so as to be balanced against a fixed condenser 15, the remaining two arms of the bridge being formed by the halves of a centre-tapped winding 13. Unbalance of the bridge is detected by a secondary winding 19 tuned by a condenser 20. The detected current is rectified by a rectifier 22 and fed through a shielded cable 9 to a resistance 23, the resultant direct current voltage being amplified by a valve 26 to operate a relay 25. High-frequency current is supplied through cable 9 to the bridge by an oscillator 12 fed by a power pack 10 including a voltage stabilizer 11. The probe comprises a removable element 37 screwed in a holder 35 carried by an insulated sleeve 36 in casing part 31, the bridge circuit being contained in a housing 34 in casing part 30. A sleeve 50, within which cable 9 runs, is connected with casing part 30 and is slidable in an upper wall of a container for the material, a scale being provided on the sleeve for adjusting the height of the probe to suit the angle of repose of the material. In operation, the bridge is balanced with the probe in air so that relay 25 is not operated and its normally closed contacts maintain a signal lamp 4 alight. When the container is filled above the probe level the capacitance of the probe is suddenly increased causing lamp 4 to be switched-off. Illumination of lamp 4 thus indicates falling of the level below probe 17 or failure of the circuit.
Patent GB-805479-A (GB)
Title: Construction of prefabricated panels
IPC: E04B1/04
Filed: 1957-04-10
Abstract: 805,479. Building units; floors; walls. MICHELIER, J. P. April 10, 1957 [May 29, 1956], No. 11676/57. Classes 20(4) and 87(1) A storey-high building unit comprises a reinforced concrete slab 1 provided on its inner face with three ribs 2, 6 on to which is cast an apertured plaster block 8 covered at the top by the rib 6. The slab is provided at the top with a rounded tongue 3 and at the bottom with a rounded groove 5 of greater radius, but less depth. A cushioning strip of wood or plastic is provided in the bottom of the groove. A drainage channel 13, 13a for condensation is provided in a small lower rib 4. Holes 12 are provided to receive gas &c. pipes or to assist in handling. In a building construction, reinforced concrete beams are cast over the ribs 6 which serve also to support floors, and reinforced concrete posts are cast between ribs 2. Corner posts 18 are covered by elements 15 and openings in the wall are provided by elements 16. Condensation in floors is collected into troughs and drained into channels 14 in the wall units.
Patent GB-696394-A (GB)
Title: Improvements in or relating to electric filter circuits
IPC: H01P1/202
Filed: 1951-05-18
Abstract: 696,394. High-frequency electric filter circuits. GENERAL ELECTRIC CO., Ltd., and SMALL, G. F. May 12, 1952 [May 18, 1951], No. 11684/51. Class 40 (viii). Both stub lines 4 and 5 (Fig. 1), in an electric filter circuit comprising a main transmission line 1 and the two stubs 4, 5, are of co-axial construction and comprise a series of sections 12-17, each of sections 12-16 having an electrical length of one quarter wave at the mid-frequency of the pass band, while section 17 has a capacity termination, so as to be equivalent to an open-circuited section having an electrical length of one quarter wave. Sections 13-17 alternate in characteristic impedance, sections 13, 15 and 17 having air as the dielectric material between the inner conductor 7 and the outer conductor 6, while sections 14 and 16 have polythene as dielectric. The section 12, which is connected to the main transmission line 1, differs from sections 13, 15 and 17 in that its inner conductor 18 is of increased cross-section, thus giving it a characteristic impedance different from that of sections 13, 15 and 17 and from that of sections 14 and 16. The capacity termination to section 17 may be varied by screwing the slug 23 in the bush 22 so as to cause it to move axially relative to the rod 7. In a band-stop filter circuit of similar construction, section 13 may be omitted. The invention is described with particular reference to transmission lines of the co-axial type. It is stated to be equally applicable to other forms of transmission line, including wave-guides, of the kind in which the impedance characteristic can be expressed in the form Z+jZ o tan # or Z= - jZ 0 Cos#. Specifications 659,811, 659,812 and 659,863 are referred to.
Patent GB-946638-A (GB)
Title: Ignition system
IPC: F02P7/067
Filed: 1962-03-27
Abstract: 946,638. Ignition generators. MOTOROLA Inc. March 27, 1962 [April 6, 1961], No. 11728/62. Heading H2A. [Also in Division F1] Pulsing units for use in ignition systems (see also Division Fl) are described. The pulsing unit of Fig. 1 includes a permanent magnet 14 having polepieces 15 connected thereto about which are positioned coils 16. A toothed magnetic disc or wheel 18 is mounted for rotation so that the teeth 19 thereof pass by and in close proximity to the ends of the polepieces 15. The plate 17 may be advanced or retarded with respect to the disc 18. The coils may be wound directly on a permanent magnet rather than on polepieces. Electromagnets may be used instead of permanent magnets. The magnet in the magnetic structure for the coils may be dispensed with. An alternative form of pulsing unit is illustrated in Fig. 4. A permanent magnet 45 is supported by polepieces 46, 47 when a tooth 54 is positioned between the polepieces as shown, the flux from the magnet 45 through the coil 50 will be a maximum. However, when the member 52 rotates and the tooth portion 54 is clear of the polepieces the flux through the coil 50 will be a minimum.
Patent GB-938322-A (GB)
Title: A process for the production of 5-guanylic acid
IPC: C12P19/32
Filed: 1962-03-27
Abstract: 51-Guanylic acid is prepared by adding to a solution containing guanosine and a phosphate donor comprising one or more aromatic phosphates and/or one or more nucleotides other than 51-guanylic acid an enzyme source comprising or obtained from cells of a species of microorganism selected from the genera Flavobacterium, Serratia, Staphylococcus and Pseudomonas, allowing biochemical phosphorylation of the guanosine to take place while maintaining the pH from 3,5 to 4,0 and thereafter recovering the accumulated 51-guanylic acid. Suitable aromatic phosphates include nitrophenyl phosphates, phenyl phosphate, benzyl phosphate and their salts.  Copper and/or zinc ions are preferably present.  The product may be recovered by separating the cells, extracting liberated phenol with an organic solvent, absorbing the guanylic acid on an ion-exchange resin, eluting with a mixture of HCl and NaCl, concentrating the eluate and adding ethanol to precipitate sodium 51-guanylate.  The guanosine starting material may be derived from a fermentation process and may contain other nucleotides which are converted to their nucleotides such as 51-inosinic and 51-adenylic acids as byproducts.
Patent GB-294711-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/02
Filed: 1927-05-04
Abstract: 294,711. Cadett, J. W. T. May 4, 1927. Spray carburettors. - In a carburettor having a main jet h situated below the normal fuel level i at the bottom of a U-shaped branch air passage g opening at f into the main air passage a, a subsidiary small air passage l opening into the main air passage adjacent the throttle valve b is provided with a small fuel jet k the fuel supply to which is separate and distinct from that of the main jet. In a modification, the air inlet end of the small air passage l communicates with the main air passage on the air inlet side of the throttle valve. Specification 261,057 is referred to.
Patent GB-541497-A (GB)
Title: Improvements in or relating to the manufacture of sectional heat-exchangers
IPC: B21D53/04
Filed: 1940-07-19
Abstract: 541,497. Making radiators. BINDER, H. G. July 19, 1940, No. 11939. Convention date, July 19, 1939. [Classes 83 (ii) and 83 (iv)] Stamping. - Radiator sections are made in halves by stamping' in dies having draw rings or frames. The sections are subsequently welded by roller electrodes along peripheral flanges and also along stiffening ribs between the water &c. channels. The pressure on the drawframes is from 1.5 to 25 per cent of the stamping pressure and is applied close to the edge of the deep bosses used for connecting the sections. The Specification illustrates a number of forms of sections both with flat and curved ends. The section may be stamped in two stages, in the first the steep wall of the boss is drawn to a radius s, Fig. 8, providing metal for the subsequent draw to the shape, Fig. 9. The draw frame o, Fig. 5, of the finishing die engages the sheet close to the boss g as shown. Specifications 385,608, 495,445, [both in Group XIII], 515,959 and 540,051 are referred to.
Patent GB-377233-A (GB)
Title: Improvements in the production of artificial filaments, threads, yarns, ribbons, films and like materials
IPC: D01F2/28
Filed: 1931-04-22
Abstract: In the production of artificial filaments, yarns, threads, ribbons, films and like materials, the spinning solution is extruded into an evaporative atmosphere to effect preliminary concentration and the more concentrated solution is then extruded to form the desired products.  The process is particularly applicable to solutions of cellulose acetate or other cellulose ester or ether in volatile solvents.  The solvent evaporated in the preliminary concentration process may be separately recovered.  In an example, cellulose acetate solution is filtered and passed through extrusion orifices into a column similar to a dry spinning cell which may be heated by steam pipes or by a steam or hot-water jacket.  Evaporative medium is passed through the column in either direction, and may be heated prior to entering the column.  The orifices through which the solution enters are preferably much larger than those ordinarily used in dry or wet spinning processes.  The solution may be heated prior to entering the column and passing through it in thin streams.  The concentrated solution is collected in a tank or carried directly to the spinning nozzles or intermediately through a blender or filtering system.  The process may be applied to wet or dry spinning processes. In another example, spinning solution is filtered and passed through a spiral pipe disposed in a heating chamber.  It then passes to a multiple jet of the ring or disc type arranged in a cylindrical column.  The streams of solution encounter a current of hot air, collect at the bottom of the column and are delivered to a tank.  The air current is controlled by means of valves, diaphragms, or perforated discs disposed in the outlet or inlet conduit. Specifications 165,519, 177,868, 179,234, 198,023, 203,092, 210,108, 300,998, 304,674, 326,232, [all in Class 2 (ii), Cellulose &c.], 340,324, 340,325, 340,326, 340,436, 340,437, and 352,922 are referred to.  The Provisional Specification includes also concentration of the spinning solutions by simple distillation.