baber/WOPTO huggingface dataset:
Patent GB-1394051-A (GB)
Title: Fluidised beds
IPC: B29C48/09
Filed: 1971-03-27
Abstract: 1394051 Fluidized bed distributer plates RUBBER & PLASTICS RESEARCH ASSOCIATION 26 June 1972 [27 March 1971] 7992/71 Heading F4B [Also in Division C3] Apparatus for controlling the pressure drop across a fluidized bed comprises a support for the fluidized bed, gas inlet means located in the support for fluidizing the bed, cover members covering the gas inlet means for deflecting the flow of gas from the inlet means in order to provide a pressure drop across the inlet means, the cover members being provided at the side of the support on which the bed rests when the apparatus is in use, and a mesh disposed between the cover members and the support, the cover members serving to clamp the mesh to the support and the mesh being such as to allow the gas to flow in the plane of the mesh when clamped. In the apparatus shown, vessel 1 has ports 2, gas inlet pipes 3 and gas outlet pipes 4. A separate chamber is bounded by a wall section 7, base-plate 5 and ballotini 6 are contained within the main vessel 1 and fluidizing gas enters the separate chamber via pipe 3. Longitudinal grooves 8 are located in plate 5, holes 9 providing a passage between inlet pipe 3 and said grooves 8, which are covered by longitudinal strips 10. Wire mesh 11 is disposed between strips 10 and plate 5, said strips being secured to plate 5 by screws 12. Heaters 13 are secured to vessel 1 by clamps 14 and thermocouple probes 15 are provided. The fluidizing gas used may be steam and rubber covered cable 16 may be cured in the apparatus. The wire mesh need be present only beneath strips 10 and not over the entire base-plate 5.
Patent GB-254004-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1925-03-25
Abstract: 254,004. Levy, F. March 25, 1925. Emulsions. making.-An emulsion in water of bitumen and india-rubber is prepared by adding to bituminous material undergoing emulsification a solution or an aqueous suspension of indiarubber. The bitumen may be emulsified by any of the processes described in Specifications 202 021, 230,177. 233,430. 233,784, and 236.641. and the india-rubber may be added as an aqueous suspension of vulcanized india-rubber, as a volatile-solvent solution of unvulcanized india-rubber, or as rubber latex: the latex may be vulcanized in situ. One example describes the addition of rubber latex to Mexican asphalt undergoing emulsification, and another example, describes the vulcanization of the latex in situ with the use of diphenylguanidine as accelerator. An emulsion comprising dispersed bitumen and indiarubber may be treated as described in Specifiction 251,323 to produce an emulsion in which the bitumen and the india-rubber form the continuous phase. The products may be used in road-making or for preserving, impregnating, or waterproofing purposes, or they may be mixed with stone or other mineral aggregate and the mixture consolidated by pressure. Alternatively, the emulsion may be broken down, as by adding an electrolyte, to yield a plastic product. Reclaimed rubber in solution may be incorporated and fillers added at any stage of the process.
Patent GB-399166-A (GB)
Title: Improvements in and relating to operating mechanism for doors and the like
IPC: E05F15/20
Filed: 1932-03-17
Abstract: 399,166. Valve circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Crago, H. R. ; 840, De Camp Avenue, Schenectady, New York, U.S.A.) March 17, 1932, No. 8007. Convention date, March 18, 1931. [Class 40 (v).] In a system for electrical operation of doors, a photo-electric cell and a lamp are placed on each side of the door, and the door is opened and retained open in response to the interruption of the light beam falling on one of the cells and is allowed to close in response to the cutting off of light from the other cell. The relays controlling the door motor are fed through three-electrode valves, the grids of which are supplied from the positive main through the respective photo-electric cells and from the negative main through resistances, so that the variation in resistance of the cell in response to light variation produces a change of grid bias and therefore of conductance of the corresponding valve. A lamp 10 and photo-electric cell 11 are placed on one side of the door 2 so that light is cut off from the cell by a person approaching the door, and a similar lamp 14 and cell 15 are placed on the other side of the door. The cells 11, 15 are connected to the positive main through a resistance 18, and to the grids of three-electrode valves 19, 20 respectively; the grids of the valves are also connected to the negative main through resistances. The plates of the. valves are connected to the positive main in series with the windings of relays 27, 28 respectively, these relays controlling a third relay 29 which closes the circuit of the dooroperating motor 3. The photo-electric cells are normally of low resistance, and the grids of the valves are therefore biased positively through resistance 18 and the respective cells the valves are consequently rendered conducting, and the relays 27, 28 are therefore normally energized and relay 29 de-energized. When the light beam falling on either cell is interrupted, the resistance of the cell rises, and the positive bias is cut off from the grid of the corresponding valve, which becomes negatively biased through resistances 23 and 21, or 22 ; the valve therefore becomes non-conducting and the corresponding relay 27 or 28 is de-energized. A person approaching the door cuts off light from the cell 11 and this causes de-energization of relay 27 to close the circuit for relay 29, which completes a circuit for the motors 3 and a stick circuit for itself. As soon as the person passes clear of the light beam, relay 27 will be energized again, but relay 29 will remain energized, maintaining the motor 3 energized to open the door and hold it open. After passing through the doorway, the person cuts off light from the cell 15, thus causing de-energization of relay 28 ; this breaks the stick circuit of relay 29, which therefore opens its contacts and de-energizes the motor 3 to allow the door to close. Specification 363,137, [Group XXIX], is referred to.
Patent GB-1030629-A (GB)
Title: Stabilisation of materials against ultra-violet light
IPC: C08K5/11
Filed: 1965-02-24
Abstract: Resin-based materials such as plastics, lacquers and inks are stabilized against ultra-violet light by incorporating a compound or isomer thereof of formulae <FORM:1030629/C3/1> where R6 is H or -CH2R1 and R1- 5 are H or substituted or unsubstituted alkyl, aryl, aralkyl, cycloalkyl or heterocyclic groups.  Specified stabilizers are tetramethyl benzylidene, p-methoxybenzylidene and o-nitrobenzylidene bis-malonates and tetramethyl p-nitrobenzylethane tetracarboxylate.  Examples describe (I) a plastic composition comprising polyvinyl chloride, plasticizer, barium/cadmium stabilizer and tetramethyl p-methoxybenzylidene bis-malonate, (III) a lacquer comprising castor oil/alkyd resin, castor oil, cellulose nitrate, toluene, xylene, butyl acetate, ethyl acetate, butanol and tetramethyl p-nitro-benzyl ethane tetracarboxylate, and (IV) a printing ink comprising pigment, alkyd resin, maleinate resin, ethyl cellulose, ethanol, ethyl acetate, ethoxyethanol and tetramethyl benzylidene bis-malonate.ALSO:Pastes, ointments and oils for skin protection comprise an ultra violet light absorbing compound or isomer thereof of formulae <FORM:1030629/A5-A6/1> where R6 is H or -CH2R1 and R1-5 are H, or substituted or unsubstituted alkyl, aryl, aralkyl, cycloalkyl or heterocyclic groups.  Specified compounds are tetramethyl benzylidene, p-methoxybenzylidene and o-nitrobenzylidene bis malonates and tetra-metyl p-nitro benzylethane tetracarboxylate. Example II describes a sun-protecting cream comprising lanoline, sorbitol oleate, petroleum jelly and oil, and tetramethyl o-nitrobenzylidene bis malonate.
Patent GB-126482-A (GB)
Title: Improvements in Fuel Economizers for Fireplaces and the like.
Inventor: ACOCK RICHELIEU
IPC: F24B1/19
Filed: 1918-05-14
Abstract: 126,482. Acock, R. May 14, 1918. Grates; fuel-economizers.-A grate with an imperforate floor a is fitted at the back with a forwardly-projecting perforated air chamber b to which air is admitted from below through an aperture d. The imperforate floor may be corrugated. The air chamber is preferably formed by a removable plate as shown, but may be formed in one piece with the floor and back. A damper may be fitted to the aperture d.
Patent GB-1428457-A (GB)
Title: Polymeric amides
IPC: D06M15/285
Filed: 1973-02-20
Abstract: 1428457 Amino-substituted polymeric amides and salts thereof SANDOZ Ltd 20 Feb 1973 [24 Feb 1972] 8183/73 Heading C3P [Also in Division D1] Amine - substituted polymeric amides are formed by reacting, at a temperature of at least 100 C., either oxidized polyethylene or an ethylene/unsaturated aliphatic carboxylic acid copolymer with an amine containing a C 11-22  alkyl or alkenyl radical, an ethylene or propylene radical and at least two nitrogen atoms of which at least one is in a primary or secondary amine group. In examples, the polymer is ethylene/acrylic acid copolymer or oxidized polyethylene and the amine is 1-aminoethyl-2- stearyl - imidazoline, N - stearoyl - dipropylene triamine or an N-alkylamino-propylamine or polypropylene polyamine in which the "alkyl" is mixed C 16 / 18  alkyl/alkenyl. The above products may be converted to salts by neutralizing residual amine groups with an acid, e.g. phosphoric, hydrochloric, perchloric, formic, acetic or chloroacetic acids. Dispersions of these salts are applied to textiles, e.g. polyamide yarn, as softening and antistatic agents.
Patent GB-1001675-A (GB)
Title: Slip rings
Inventor: GUBB KENNETH FREDERICK
IPC: H01R43/10
Filed: 1963-06-01
Abstract: 1,001,675. Slip-rings for dynamo-electric machines. C.A.V. Ltd. June 26, 1964 [June 1, 1963], No. 8245/63. Drawings to Specification. Heading H2A. Slip-rings are mounted on a machine shaft by force-fitting on to a sprayed-on coating of epoxy-resin which has been turned down to the required dimension.
Patent GB-1494027-A (GB)
Title: Sealed assemblies
IPC: F02F11/00
Filed: 1975-02-27
Abstract: 1494027 Sealing ceramics to metal P R MALLORY & CO Inc 27 Feb 1975 [27 Feb 1974] 8310/75 Heading B3V [Also in Division H1]   A metal member 12 secured in a ceramic member 14 by a glass seal 13 has an enlargement which is larger than one part of the receiving aperture in the ceramic member. As applied to lead-through seal for an electrolytic capacitor 30, the mainly alumina end 14 is metallized at 21 with W, Zr, Mo, Ti or Ta or mixtures thereof during or after firing the ceramic, and is then coated with gold, silver or platinum or their alloys to provide a surface on which the casing 32 may be welded, brazed or soldered at 39. The riser 12 may be of Ta, Nb, Al, Ti or Zr with an integral or attached enlargement 15 of circular, square &c. cross-section, the expansion coefficient approximately matching that of the glass and ceramic, or that of the glass may be slightly more than that of the riser to give a compression seal.
Patent GB-491814-A (GB)
Title: Method of and furnace for heating steel ingots
IPC: C21D9/70
Filed: 1937-03-22
Abstract: 491,814. Ingot - heating furnaces. MORTON, W. A., and SPENCER, H. F. March 22, 1937, No. 8399. [Classes 51 (i) and 51 (ii)] In a soaking-pit furnace, ingots are arranged on end and in spaced relation on the hearth, and heating-gases delivered vertically into the chamber are exhausted at hearth level. In the construction shown the heating-chamber 1 is of rectangular shape as seen in plan in the Figure, and the oval or rectangular heating-gas inlet port 4 is arranged in the middle of the hearth so that it can be surrounded by the ingots. Producer gas and recuperatively-heated air are supplied under control to the mixing chamber 23 through the ports 25, 22 respectively, and the products of combustion pass first to the top of the heating- chamber and then flow downwards to exhaust ports 16 leading to the recuperators 17. Blast furnace gas may be used instead of, or in addition to, producer gas as heating-agent, and is supplied through ports 26, the gas being preheated in pipes arranged in damper-controlled flues which byepass the recuperators. Any molten metal which accumulates on the hearth drains off through passages 7 to a pit 8 having a draw-off opening 8a and a cleaning door 9. Preferably the pits are built in batteries of three or more, and the main supply and exhaust connections for such a battery arc described. In a modification, Fig. 16 (not shown), recuperators are arranged between two heating-chambers, each having a port 4 at ono side of the hearth, and outlet ports 16 in the opposite wall adjacent the recuperators.
Patent GB-1467798-A (GB)
Title: Image intensifier arrangements
IPC: H01J31/50
Filed: 1974-03-18
Abstract: 1467798 Image intensifier tubes EMI Ltd 18 March 1974 [21 Feb 1973] 8451/73 Heading H1D An image intensifier includes photo-cathode 2, output target 13, one or more phosphor/photocathode sandwich dynode electrodes, and first and second cylindrical electrodes (e.g. 4, 7) at each dynode so that electrostatic fields are formed between the cylindrical electrodes and the respective dynodes, and magnetic means in the form of coils (e.g. 15, 16) or magnets around the tube at the position of each dynode producing a magnetic lens field reducing aberration effects due to the electrostatic fields. The axial length of the magnetic means is between one half and twice the axial length of the electrostatic lens fields. The Fig. includes three stages with electrodes 3, 4 and 7, 8 and 11, 12 with respective dynodes comprising photo-cathodes 6, 10 and phosphor screens 5, 9. Each pair of electrodes (e.g. 3, 4) produces a field tending to focus electrons and electrodes 3, 4 form planar convex lenses with surface 2 and screen 5. Also included one focusing coil 17, housing 18 which may include magnetic shielding means and shunts for shaping the magnetic fields. The image may be rotated. Tube 14 (e.g. of glass) may be an electrically insulating non-magnetic tube 19 by means of rings 20, 21. Further intermediate stages similar to stage B may be provided. Additional magnetic lenses may compensate for electrostatic lens aberrations at other positions.
Patent GB-119421-A (GB)
Title: Improvements in and relating to Chuck Mechanism for Grinding and like Machines.
Inventor: ARTER WILLIAM
IPC: B24B41/00
Filed: 1917-09-25
Abstract: 119,421. Arter, W. Sept. 25, 1917. Work-holders.-The magnetic or other chuck 4 of a grinding-machine or similar machine tool is screwed on to the upper end of a vertical rotating shaft 2, which is provided with a part 14 constructed to receive a wrench &c., whereby a sudden rotative movement may be imparted to the shaft. The blow, acting in conjunction with the inertia of the chuck, serves to start the thread and to commence the unscrewing of the chuck. The part 14 is enclosed by a removable cap 16.
Patent GB-542131-A (GB)
Title: Vibratory electromagnetic motor
IPC: H02K33/04
Filed: 1940-05-10
Abstract: 542,131. Oscillating machines; dry shavers. RAMSEY, A. R. J. (Chicago Flexible Shaft Co.). May 10, 1940, No. 8465. [Class 35] [Also in Group XIV ] A vibratory electric motor has a stationary field assembly acting on the vibratory member which transmits the power for operating a razor blade or other device and in addition, another vibratory member in counter-acting relation to the first member so as to influence its vibrations and reduce undesired vibrations in the motor as a whole. In the shaving device shown, the armatures 55, 56 are carried on inclined springs 57, 66 attached to a non-magnetic frame piece 27 by wedge-shaped packing pieces 71 and rivets 72. The springs 57, 56 have central openings to allow them to straddle the field coil 46. The piece 27 also carries the U-shaped laminated magnet coil 35 which has upwardly extending pole pieces with projections between which the armatures move as shown in Fig. 6. The armature 55 carries on a roller 64 engaging the pivoted holder 33, Fig. 4, of the blade 3 oscillating within a perforated detachable guard 31. The guard is held by springs 31 which are forced into engagement with recesses on it by pivoted finger-operated cam pieces 30. The armatures are loaded with brass laminations 62 so that the frequency of oscillation of the spring 57 apart from the resistance of the blade is consistently higher than the frequency of the current and that of the spring 66 slightly higher These frequencies are regulated by grinding the springs so as to alter their thickness and numerical examples are given. The idler armature 56 may be replaced by a weight having no magnetic action and the working armature 55 may be given such a magnetic reluctance that its length of path is unaffected by the normal variations in the supply volts. Specification 485,335, [Group XIV ], is referred to.
Patent GB-579501-A (GB)
Title: Universal joints
IPC: F16D3/40
Filed: 1944-05-05
Abstract: 579,501. Universal joints. HARDY, SPICER, & CO., Ltd., and SPARROW, W. E. May 5, 1944, No. 8504. [Class 80 (ii)] In a Hooke's type universal joint the coupling members 23, 12a are formed of tubes with U-shaped gaps 13 providing fork arms 14. Bosses 18 are welded or otherwise secured tc the arms 14 to provide the necessary journal area for receiving the arms 25, or bearing caps 27, of the intermediate spider.
Patent GB-127391-A (GB)
Title: Improvements in Liquid Fuel Injectors or Vaporizer Valve-Boxes for Internal Combustion Engines.
Inventor: JAMES CHARLES
IPC: F02M43/04
Filed: 1918-05-27
Abstract: 127,391. James, C. May 27, 1918. Cylinders receiving liquid fuel.-Fuel injectors of the kind described in Specification 5912/00 are provided with two orifices k, i for light and heavy oil respectively. The passages leading to the nozzle are provided with non-return valves b, c and relief valves under the control of a governor, or, in the case of the light-fuel pipe, of a screw-down relief valve.
Patent GB-944496-A (GB)
Title: A pressure measuring system for hydraulic or pneumatic equipment
IPC: G01L19/00
Filed: 1962-03-07
Abstract: 944,496. Pressure gauges. BWG BERGWERKUND WALZWERK-MASCHINENBAU G. m. b. H. March 7,1962 [April 13,1961], No. 8767/62. Heading G1L. To measure the pressure 1 of fluid in a hydrau lic pit-prop having a rubber plug 3 provided for the purpose, a pressure gauge 6 is fitted with a hypodermic-like needle 5 for penetrating the plug.
Patent GB-543293-A (GB)
Title: Improvements in or relating to honing sticks
IPC: B24B33/08
Filed: 1940-05-17
Abstract: 543,293. Grinding. MICROMATIC HONE CORPORATION. May 17, 1940, No. 8813. Convention date, May 22, 1939. [Class 60] A honing-stick 13 for a honing-cylinder consists of an abrasive element 18 provided with a metallic sheath 19 which covers all parts of the element excepting the working face. The sheath is sufficiently soft to wear away with the element. The sheath may be applied by spraying or electro-plating, or may consist of a bent sheet-metal box cemented to the element. A number of units, mounted in slots in a cylinder 12 and provided with springs 14, may co-operate with the tapered end 16 of an adjusting-rod 15. In another construction, lugs, soldered or brazed to the bottom of the sheaths, engage garter-springs, and pins which co-operate with cones on the adjusting- rod. When sheet-metal sheaths are employed, the lugs may be formed integrally therewith.
Patent GB-180478-A (GB)
Title: Improvements in tongs for eggs and the like
IPC: A47J29/06
Filed: 1921-03-23
Abstract: 180,478. Wilson, C. E. S., Wilson, C., and Hudson, F. E. March 23, 1921. No Patent granted (Sealing fee not paid). Egg-cooking apparatus. - Egg tongs are formed by a single piece of wire, the loops 4 which engage the longitudinal sides of the egg being substantially in the same plane as the spring coil 2 and the crossed connecting-arms 3. The ends 5 of the loops 4 are bent inwardly.
Patent GB-550661-A (GB)
Title: Improvements in or relating to sifting apparatus
IPC: B07B1/38
Filed: 1941-07-15
Abstract: 550,661. Shifting apparatus. HURST, J. July 15, 1941, No. 8952. [Class 117] [Also in Group XXV] Gyrating sifting apparatus comprises one or a number of superposed sieve units 19, 20, each comprising a circular sieve 23, stretched over a frame 22 and surrounded by an annular collecting trough 31. The sieve is folded over the frame 22 and is secured by an encircling band 24 and bolts 26. Preferably a collecting tray 127 is formed with the frame, and discharges the fine material passing the sieve by way of a central opening 43 and duct 46 to the outside of the apparatus. The annular collecting trough is formed by a conical tray 29 with an upstanding edge 30 which is secured in spaced relation to the tray 127 by brackets 27, and is secured, as by spot welding, to a circular outer casing 32. A threaded bolt 48 with a pointed end for piercing the sieve, nuts 49, 51, 52 and washers 50 secure the parts together centrally and are preferably adjusted to impart a slightly conical shape to the sieve. The upper edge of each casing is offset at 33 to hold a rubber gasket 34, on which the lower edge of the one above rests, or in the case of the uppermost one the edge of a lid 35 provided with a central feed spout 36. The assembled sieves are clamped in a frame between a transverse support and cross-bars lying across the lid. The fastening means may be bolts or the quick release device shown in Fig. 2. This consists of a rod 63 engaging a slotted lug 61 on the bottom support 14 and acted on by a spring 64 bearing against the under side of the lug. The upper end of the rod has a loop 71, engaging a toggle lever 67 pivoted at 69 to the bar 65 lying across the lid. The supporting frame is slung from a hook and carries a motor driving an out-ofbalance weight by which the movements are derived. A hopper with a regulating slide is connected by a duct to the central feeding aperture in the lid.
Patent GB-1398494-A (GB)
Title: Manufacture of glycidyl esters
IPC: C08G59/26
Filed: 1973-02-23
Abstract: 1398494 Diglycidyl esters containing at least one cyclic imide group DR BECK & CO AG 23 Feb 1973 [1 March 1972] 8960/73 Heading C2C [Also in Division C3] A method for making diglycidyl esters containing at least one cyclic imide group comprises reacting a dicarboxylic acid containing at least one imide group between the carboxylic groups of the molecule with an excess of an epihalohydrin in the presence of a catalyst conventionally used in the manufacture of glycidyl esters at a temperature of greater than 20‹ C., and treating the reaction product with an aqueous alkali solution under reduced pressure whilst continuously removing any water present by azeotropic distillation, the alkali metal halide so produced and any excess epihalohydrin being removed by conventional methods. The catalyst is suitably a quaternary ammonium salt, a tertiary amine, a thioether or a sulphonium salt and the dicarboxylic acid starting material is suitably of the formula wherein R<SP>1</SP> is an aromatic, araliphatic or aliphatic radical carrying at least two carboxyl groups on adjacent carbon atoms, and R is an aromatic, araliphatic or aliphatic radical carrying one amino group and at least one further amino or carboxyl group.