baber/WOPTO huggingface dataset:
Patent GB-1017385-A (GB)
Title: Method of rolling heavy and medium-gauge sheets
IPC: B21B37/16
Filed: 1962-10-15
Abstract: 1,017,385. Rolling. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Oct. 15, 1962 [Nov. 13, 1961], No. 38867/62. Heading B3M. A method of rolling sheets in a reversing mill comprises the steps of rolling a reference sheet noting the roll gaps without load, sheet thickness, and rolling force for a number of passes, and rolling a subsequent sheet, the variations in thickness and rolling force in the first two passes from the reference sheet serving to alter the roll gap under no load of subsequent passes by means of a calculator such that the desired final thickness of sheet is obtained. As shown, information from X-ray generators and gauges 5a, 5b and 6a, 6b of the strip thickness, from strain gauge dynamometers 12 of the rolling force, and from a numerical coding device 8, controlled by a coding disc 9 and photo-electric cell 10, of the roll gap without load, is fed to a calculator 13, and the roll gap to be used is registered on a numerical counter 14.
Patent GB-972125-A (GB)
Title: Improvements relating to document folders,card index guides and the like
Inventor: SHANNON EDGAR LIONEL
IPC: B42F21/06
Filed: 1963-10-02
Abstract: 972,125. Indexing; filing papers. SHANNON Ltd. Oct. 2, 1963, No. 38885/63. Heading B6E. The bar 12 of a suspension folder 10, or the upper edge of a card index or the like, has on one face a number of projections 16 to engage in a channel of an index tab 20, each projection being form: d by slitting the bar at 22, Fig 3, and forcing out the material above the slit to form an inclined ramp over which the channel of the tongue 18 of the tab 20 can be forced so that it will snap into position to retain the tab against upward movement but to allow it to be moved longitudinally of the bar 12. The bar 12 can be made of metallic or plastic material: if the bar is of metal, the hooks 14 may be covered with plastic material by spraying, dipping &c. Specification 810,194 is referred to.
Patent GB-1114865-A (GB)
Title: A mineral winning plough
IPC: E21C27/32
Filed: 1965-09-13
Abstract: 1,114,865. Mineral-winning ploughs. GEWERKSOHAFT EISENHUTTE WESTFALIA. 13 Sept., 1965 [7 Oct., 1964], No. 38997/65. Heading E1F. In a mineral-winning plough the upper part of the plough is constituted by a number of vertically disposed, cutter-carrying members. Each member is connectable or disconnectable with a lower member by being slid horizontally into or out of engagement therewith and is lockable thereto by one or more horizontally movable connectors. Preferably the connectors are pins insertable into aligned bores in the members when the members are correctly positioned with respect to one another, the bores being disposed at right angles to the horizontal direction in which relative movement can occur between the members.
Patent GB-1055488-A (GB)
Title: Improvements in or relating to angular strain detectors
Inventor: MACINTYRE JOHN MORTON
IPC: G01L3/10
Filed: 1964-09-24
Abstract: 1, 055, 488. Measuring torque electrically. BRISTOL SIDDELEY ENGINES Ltd. Sept. 22, 1965 [Sept. 24, 1964], No. 39005/64. Heading G1N. The fuel supply to an engine is automatically cut off if the angular strain between two parts of a shaft exceeds a given value. Two pulse generators 3, 4 are mounted on the shaft 5, each comprising a coil and permanent magnet probe and a toothed magnetic disc. The reference disc 3 has two notches and the signal disc 4 has one. The double pulse from disc 3 is applied to a bi-stable circuit 11 which is thus keyed "off" for the short period between pulses. The single pulse from disc 1 is applied to a mono-stable circuit 12 which provides a pulse output of two micro seconds duration that occurs mid-way through the "off" period of the reference signal when there is zero strain in the shaft. At a limiting value of strain, the pulses coincide, thereby triggering both S.C.R.'s 15, 16 and so energizing a solenoid 17 to shut off the fuel to the engine. The circuit is re-set manually by opening switch 18.
Patent GB-1009166-A (GB)
Title: Improvements in or relating to control rod mechanisms for nuclear reactors
Inventor: GRUEL JEAN
IPC: A01K1/03
Filed: 1963-10-04
Abstract: 1,009,166. Reactor control rods. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 4, 1963 [Oct. 5, 1962], No. 39193/63. Heading G6C. A nuclear reactor control rod mechanism has provision for inserting a member into a core either as a control rod, or as an emergency shutdown rod; the mechanism comprises a tube enclosing a screw jack, a neutron absorbing member whose upper end is a piston, a reservoir of compressed gas, and an electromagnet which retains the piston against an aperture in the gas reservoir in such a way that, on de-energizing of the electromagnet, the neutron absorbing member is simultaneously dropped and propelled by pressure from the gas reservoir. The neutron absorbing rod is boron or cadmium, and in control operation is moved axially by a rotating screw driven by a control motor. When the control rod is released to function as a safety rod, the last part of its descent is retarded by means of a dashpot, a helical spring, and a stack of cupped discs. A signal indicating that the safety rod has dropped away from the associated control drive mechanism is derived from a hollow solenoid from which is withdrawn a metal probe integral with the absorbing rod. Provision is made for recovering the absorbing rod simply by lowering the normal control mechanism until contact is reestablished between the electromagnet and the piston.
Patent GB-861831-A (GB)
Title: An improved process for the manufacture of artificial threads and staple fibres fromviscose, as well as the threads and staple fibres thus obtained
IPC: D01F2/06
Filed: 1958-12-08
Abstract: Viscose containing 4.8-7.5% by weight, preferably 6-7% by weight, of total alkali (calculated as sodium hydroxide) is spun into an aqueous spinbath containing sulphuric acid, sodium sulphate and 0.1-2% by weight of zinc sulphate, and the filaments so formed are stretched, the percentage by weight of sulphuric acid in the spinbath lying between a minimum and a maximum calculated respectively from the formul  A-1-2B 1/3 and A+0.5-B 3/2 , where A is the percentage of total alkali in the viscose and B is the percentage of zinc sulphate in the spinbath.  The sulphuric acid content of the spinbath is preferably at least 3%.  The cellulose content of the viscose may be 5.0-8.5%, preferably 6-8%, and in the xanthation step the proportion of carbon bisulphide based on cellulose may be 25-50%, preferably 32-40%.  The sodium sulphate content of the spinbath is preferably 12-26% and the temperature of the spinbath may be 30-70 DEG  C., preferably 40-60 DEG  C.  The freshly-formed threads may be stretched in the spin bath but are preferably stretched at least 50% in a hot second bath consisting of a hot dilute aqueous solution of sulphuric acid, e.g. a 1-3% solution at 80-100 DEG  C. In an example, viscose containing 7.3% of cellulose, 6.8% of total alkali (expressed as sodium hydroxide) and 2.25% of total sulphur is spun at a Hottenroth number of 10.5 into a spinbath at 50 DEG  C. containing 5% of sulphuric acid, 18% of sodium sulphate and 1.0% of zinc sulphate. The threads are then stretched 110% in a second bath maintained at 90 DEG  C.  Cation-active compounds may be incorporated in the viscose and/or the spinbath to prevent deposition of zinc sulphide on the thread-guides &c. when the sulphuric acid and zinc sulphate concentrations in the spinbath are low and high, respectively.  The stress-strain diagrams of threads produced according to the invention resemble those of natural cotton threads, and the threads are therefore suitable for making yarns composed of mixtures of the two types of fibres.
Patent GB-1011432-A (GB)
Title: Production of phenol
IPC: B01J21/18
Filed: 1962-10-19
Abstract: In a process for making a phenol from a fraction comprising at least one compound selected from cyclohexanol, cyclohexanone and lower alkyl ring substituted derivatives of those compounds containing up to 5 carbon atoms in the alkyl groups by catalytic dehydrogenation of the fraction in the vapour phase, there is used a Pt or C catalyst containing up to 5% Pt, the carbon having been treated with 0.1 to 19% aqueous HCl and then washed until the washings have a pH of 5.3 to 7.0.  The fraction may be dilute with 1 to 15 mols. of hydrogen per mol. of fraction and the reaction catalysed at 250-425 DEG  C. with L.H.S.V.=0.3 to 2.5. Examples describe the preparation of phenol itself from cyclohexanol and reference is made to the preparation of cresols from methyl-cyclohexanols and -owes.ALSO:Dehydrogenating Pt on C catalysts are made by treating active carbon with 0,1-19% aqueous HCl, washing the treated carbon until the washings have a pH of from 5,3-7,0, contacting the washed carbon with a solution of a Pt compound in a solvent in an amount sufficient to produce up to 5% Pt by weight of the catalyst under Pt depositing conditions and continuing the contact for a substantial time in excess of that required for essentially complete absorption of the Pt on C.
Patent GB-1065365-A (GB)
Title: Improvements in or relating to hot water domestic and/or central heating systems
IPC: F24D17/00
Filed: 1965-09-17
Abstract: 1,065,365. Systems, radiators and heat storing apparatus for heating buildings; hot water supply systems. J. McCLELLAN. Sept. 17, 1965 [Nov. 18, 1964], No. 39797/65. Headings F4A, F4S and F4U. In a hot water supply or central heating system in which the hot water is circulated through tubing made of Polyvinylchloride (P.V.C.) the tubing is encased in a solid medium which supports the tubing against deformation due to the heat or pressure of the water. The tubing may have a solid and rigid covering material, or be embedded in concrete, asphalt or the like. In under-floor central heating systems, the floor may be of asphalt, tar macadam, coke breeze or the like and have a continuous system of parallel U-shaped grooves in which the tubing is laid and grouted in, the whole being covered by a top layer of concrete. In wooden floors, tubes are embedded in fine sand in inter-joist spaces and interconnected across each joist by a copper tube. The P.V.C. tubing may be cast in a block of fine cement concrete to provide a heat storage unit which may be connected into a hot water centralheating system in a manner similar to the conventional cast iron or steel radiators.
Patent GB-1106530-A (GB)
Title: A metallic bridge for a thermoelectric arrangement
IPC: H01L35/08
Filed: 1965-09-17
Abstract: 1,106,530. Thermoelectric devices. SIEMENS-SCHUCKERTWERKE A.G. 17 Sept., 1965 [18 Sept., 1964], No. 39871/65. Heading H1K. Thermoelectric elements are connected by a metallic bridge comprising two end portions joined by a central portion made of soft solder. In the thermoelectric battery shown, the active elements 1 are soldered to copper end-plates 2 which are in turn joined by solder 3 to ceramic plates 4, 5. The copper plates form the end portions of the connecting bridges, and the soft solder 8 forming the central portions may be applied directly to the gaps between the copper plates or may flow into the gaps when the soldered joints 3 are made. The ceramic plates have metal layers 11, 12 on their outer surfaces to enable them to be soldered to heat exchangers, and their inner surfaces are provided with metal layers (6, 7, Figs. 1 and 3, not shown) corresponding in distribution to the bridges. A plurality of elements 1 with end-plates 2 attached may be obtained by sawing up a laminated structure made by coating a disc of N or P type semi-conductor material with a thin layer of bismuth and a layer of lead, tin or bismuth solder using dipping operations and employing the solder to secure a disc of copper to each face of the semi-conductor disc.
Patent GB-1486282-A (GB)
Title: Suction cleaners
IPC: A47L9/28
Filed: 1974-09-12
Abstract: 1486282 Vacuum cleaners HOOVER Ltd 12 Sept 1974 [13 Sept 1973] _39894/74 Heading A4F [Also in Division F2] In a vacuum cleaner as disclosed in Specification No. 1486283 a connector 28 attached to the cleaner body and a mating connector 135 attached to the end of the suction hose 66 each have two passages therethrough, a main passage for dust laden air and an auxiliary passage whereby pneumatic control conduits 70, 64 are connected. As shown the conduit 64, which comprises in part tubing 128 running beside the hose 66, communicates with an axial bore 162 in the connector 135 which itself joins an arcuate groove 164 in the endface of the connector 135. The groove 164 communicates with bores 166, 168 in the connector 28, and thus with conduit 70, when the connectors 28, 135 are coupled. The coupling may as shown be by bayonet connection, a tubular fitting 174 surrounding connector 28 having cut-outs 180, 182, 182 in a flange 176 through which lugs 143, 142, 142 of the connector 135 can be passed, the cutout 180 being larger than cut-outs 182, and lug 143 being larger than lugs 142 and cut-outs 182 so that the coupling can be made in only one relative position of the connectors 28, 135. The end of suction hose 66 is secured in connector 135 by pins 146 on a hose crimp ring 148 engaging in bores 140 in the connector.
Patent GB-834361-A (GB)
Title: Process for the regeneration of catalyst
IPC: B01J38/00
Filed: 1957-12-24
Abstract: Catalysts containing one or more heavy metals and/or their oxides on an inert (catalytically and towards nitric acid) support are regenerated with nitric acid having a concentration of at least 16 wt. per cent without previous roasting.  Heavy metals and supports mentioned are (i) Fe, Co, Ni, Pd, Pt, Rh, Cr, Mo, W, Cu and Ag, and (ii) majolica, silica, alumina, amianthus, carbides, fused alumina, pumice and pellets of compressed diatomaceous earth, respectively. The treatment is generally effected at 80 DEG  to 120 DEG  C. with nitric acid of over 30% wt. concentration, preferably 40 to 60%.  The treatment may be followed by treatment with a solution of the nitrate of the appropriate metal.  This solution may be the spent acid from the first stage which may be diluted or concentrated or have fresh nitrate and/or acid added. In an example, a majolica-supported nickel catalyst which had been used to hydrogenate mesityl oxide to methyl isobutyl ketone is treated with one quarter of its weight of 52 wt. per cent HaO3 for one hour at 110 DEG  C.  Nickel nitrate was added to the spent acid, which contained 10 wt. per cent of nickel, to bring the concentration 15 wt. per cent of nickel and the treated catalyst was reimpregnated in this solution for 30 minutes at 100 DEG C.  The treated catalyst was air dried at 60 DEG  C. and then heated in a stream of hydrogen with the temperature progressively increased to 250 DEG  C. to convert the nitrate to oxide and the oxide to metal.
Patent GB-1080774-A (GB)
Title: Process for the production of expanded plastics
IPC: C08J9/02
Filed: 1964-10-02
Abstract: Expanded resins are produced by the reaction of 2,5-dioxo-1,3-oxathiolan <FORM:1080774/C3/1> with a polyunsaturated compound and a polyol, at least one of these components having at least three functional groups. Additional singly or doubly unsaturated compounds may be used, and there may be one hydroxyl group for every double bond of the unsaturated component, and one molecule of 2,5-dioxo-1,3-oxathiolan for every hydroxyl group. 0.1%-10% of a peroxide or acid catalyst may be used while the reaction temperature may be between 0 DEG  C. and 300 DEG  C., preferably 50 DEG  C.-250 DEG  C.  Extensive lists of suitable polyunsaturated compounds include diene polymers, unsaturated polyesters, unsaturated ethers and allylic esters of polyacrylic acids, vinyl carbonate polymers, unsaturated acids, alcohols and derivatives, acetals, amides and amines, phosphite and phosphate esters, sulphones, silanes and siloxanes polyunsaturated hydrocarbons. Polyols mentioned include glycols, triols, and higher polyols, polyvinyl alcohol, polyepoxides, polyacetals, polyethers and formaldehyde resins, polyacrolein, epoxidized polydienes, alkoxylated polymers of unsaturated acids, and polymerized unsaturated hydroxyesters and hydroxyamides.  In examples, polyunsaturated compounds used are 2,2-dimethylpropene-1,3-bisacrylate, an ethylene-maleic anhydride polymer partially esterified with allyl alcohol, diallyl phthalate, bis-allylglycidyl-fumarate, polybutadiene; and polyols used are diethylene glycol, 1,1,1-trimethylol propane, 1,6-hexane diol.  The catalysts used are diacetyl peroxide and p-toluene sulphonic acid.
Patent GB-1319028-A (GB)
Title: Peristaltic pump and system therefor
Inventor: KLING N G
IPC: F04B43/12
Filed: 1971-08-26
Abstract: 1319028 Mixing liquids in proportions TECHNICON INSTRUMENTS CORP 26 Aug 1971 [14 Sept 1970] 40180/71 Heading B1C [Also in Division Fl] An apparatus for analysing liquid samples in which the samples are first mixed with a liquid reagent, comprises a peristaltic pump (see Division Fl) for pumping the samples to a mixer 134 to which reagent from a bottle 114 is supplied via a flow control 130. The platen 28 of the peristaltic pump is movable into its operative position by pneumatic pressure derived from a source 108 via relief valve 110 and electromagnetically controlled vent valve 118, the pressure source also being used to pressurise the reagent bottle 114. The pump may incorporate means for segmenting indivividual samples using a separating fluid, e.g. a gas.
Patent GB-1461912-A (GB)
Title: Signalling over energised electric power lines
IPC: H02J13/00
Filed: 1973-08-24
Abstract: 1461912 Signalling over power lines ELECTRICITY COUNCIL 28 Oct 1974 [24 Aug 1973] 40325/73 Heading H4R One or more non-oscillatory loads 13 are switched in and out of shunt connection across power lines 11, 12 for at least one half-cycle at a rate or successively different rates less than power frequency in response to keying 20 according to encoded data for power line transmission. As shown, mains frequency is 90 degrees delayed, 16, then shaped, 17, and divided by two at 18 to produce a square wave signal at half mains frequency and with a 1 : 1 mark/ space ratio causing pulse generator 19 to fire a triac 14 allowing capacitor 13 to charge and discharge once during alternate mains cycles provided the key 20 is closed. The encoded data operates the key at a lower bit frequency than the trigger pulses. The signal so produced contains side-bands spaced at half mains frequency above and below mains frequency which are detected at a central receiver, e.g. for centralized meter reading. Different divisors in divider 18 and different mark/space ratios generate different side-band frequencies. In Fig. 2 (not shown), antiphase trigger pulses alternately shunt the capacitor 13 and an inductor (31) of equal reactance across the power lines. Alternatively, the divisors may be alternately two or four and the relative phases of the trigger pulses may be successively different for frequency and phase shift keying respectively. Knowing the nature of the transmitter keying, the receiver includes a current transformer (50, Figs. 5-8, not shown) feeding bandpass filters tuned to the expected sideband frequencies on either side of mains frequency which are threshold detected and added to produce a logic decision that the information received relates to transmitted data. Only one side-band need be detected if the S/N ratio is high. The received signal may alternatively be mixed with a lower frequency to extract the load switching rate directly. To detect phase shift keyed data, a reference phase signal is derived from the mains by 90 degrees delaying, shaping and dividing down to the load switching rate at the transmitter for comparison with the phases of the received sideband frequencies (Fig. 8, not shown).
Patent GB-982020-A (GB)
Title: Improvements in or relating to apparatus for collating printed sheets
IPC: B65H39/042
Filed: 1961-11-15
Abstract: 982,020. Collating apparatus. W. G. SIMPSON. Nov. 15, 1962 [Nov. 15, 1961], No. 40934/61. Headings B6B and B6H. Apparatus for collating printed sheets comprises a number of sloping shelves 18, Figs. 2, 3, each adapted to hold a number of stacks 21 of printed sheets, and a pair of sheet-separating devices for each stack to advance the top sheets of the stacks, the sheet-separating devices being actuated by levers pivoted about an axis parallel to the length of the shelves and operated by a treadle. The seperators may be triangular rubber blocks 31 or serrated rubber pads (Fig. 5, not shown) functionally engaging the top sheets or, in the case of folded sheets, may comprise hooks (Figs. 9, 11, not shown) which engage the rear edges of the sheets and push the sheets forward. In one embodiment, the apparatus comprises a casing 11 with the front 16 sloping at 49 degrees to the horizontal, and a back-plate 17 parallel to the front 16. A number of removable shelves 18 carrying stacks of sheets 21 are supported in the casing approximately perpendicularly to the back 17. Levers 23 situated adjacent to and passing through openings 22 in the ends of the shelves carry a number of horizontal rods 27 on which are pivoted arms 29 carrying the separators 31 for each stack. The levers 23 are operated by a treadle 26 or seat 34 so that the top sheets from all the stacks all pushed forward simultaneously when operation is effected. Rubber stops 132 limit the movement of the levers 23. In a modified construction, Fig. 7, shelves 54 extend outwardly from each side of a frame 51 mounted on castors 53 and the separators 69 are carried by members 68 pivoted to a frame 61 itself pivoted at 58 to the upper end of the frame 51 and carrying treadles 65 at its lower end. Instead of the pivots 58, a knife-edge pivotal arrangement may be employed.
Patent GB-997052-A (GB)
Title: Lifting apparatus
Inventor: SMITH WALTER ARTHUR
IPC: B65G67/08
Filed: 1962-10-31
Abstract: 997,052. Endless conveyers. CHARROLD Ltd. Nov. 22, 1963 [Oct. 31, 1962], No. 41225/62. Heading B8A. [Also in Division B7] An elevating apparatus comprises an endless chain conveyer 11 having an inclined working run 5 along which articles 43 on horizontally maintained platforms 30, are moved and switch means 21 actuable by each platform when it reaches the upper level to interrupt the drive to the conveyer 11. Pushers 14 on the chain 11 engage an abutment 36 under each carrier platform 30 to move the same along a pair of parallel tracks 9, 10 which are engaged by flanged casters 32 on the platform 30. The inner tracks 10 are positioned below the outer tracks 9 on the ascending run 5 of the tracks, and their positions reversed on the descending run 6. The semicircular end portions 7, 8 of the tracks are horizontal and both pairs of tracks are in the same plane. A sack 43 filled with a weighted amount of coal from a hopper 37 is passed along rollers 40 on to the carriage 30 standing on the track portion 7 and is held therein by a chain 35 and two walls 33, 34 of the carriage. The latter is manually pushed to the inclined portion 5 and engages a micro-switch 20 which starts the drive motor 15 of the chain 11, whereupon the carriage is elevated. As the horizontal upper portion 8 of the track is reached a further micro-switch 21 is operated to override the switch 20 and stop the chain 11. The carriage is stopped by a bar 29 which is pushed up by a system of sprung levers 22, 27, operated by a foot-plate 25, to engage the carriage abutment 36. The sack 43 is then moved on to a lorry 42 and the carriage 30 returned by gravity down the track portion 6, a spring brake 43 halting it at the track portion, 7, while a further loaded carrier is elevated. In another embodiment, the carrier takes the form of spaced prongs which are attached to the endless chain 11 and which pass through a lower and upper platform of similar construction to pick up and deposit the sacks 43. A gate on the upper platform is arranged to be opened by a mechanism operated by the weight of an operation waiting to remove the sack therefrom.