baber/WOPTO huggingface dataset:
Patent GB-819416-A (GB)
Title: Process and device for manufacturing fibro-cement pipes
Inventor: MAGNANI ALESSANDRO
IPC: H02B13/02
Filed: 1957-12-06
Abstract: 819,416. Making pipes. ETABLISSEMENT POUR MATERIAUX DE CONSTRUCTION, and SMIDTH & CO. A. S., F. L. Dec. 6, 1957, No. 38052/57. Class 99(2). In the manufacture of fibro-cement pipes wherein a thin layer of acqueous slurry of cement and fibrous substances are wound and compressed on a metal mandrel 1, the compression is exerted by two sets of rubber-coated coaxial rollers 8, 9 each acting substantially throughout the length of a portion of the periphery of the pipe being made or on the slurry layer being wound on the mandrel, the gaps 12 between the rollers of one set of rollers being disposed opposite the gaps between the rollers of the other set. As shown, the mandrel 1 is supported and rotated by a driven roller 2 over which passes an endless belt carrying a layer 5 of a slurry of cement and asbestos. A cross-beam 7 mounted on the frame 6 of the machine is movable vertically by hydraulic jacks 10 so that the pressure rollers 8, 9 carried by the cross-beam exert a compression on the slurry layer wound on to the mandrel. The rollers are rotatably mounted in bearings 11 secured to the cross-beam and located in the gaps 12.
Patent GB-303026-A (GB)
Title: Manufacture of developing dyestuffs
IPC: C09B31/00
Filed: 1928-12-24
Abstract: 303,026. I. G. Farbenindustrie Akt.- Ges. Dec. 24, 1927, [Convention date]. No Patent granted (Sealing fee not paid). Azo dyes are obtained by condensing a secondary disazo-dye of the type A-N=N-M-N= N - E or a trisazo-dye of the type A-N=N-MN=N-M<1>-N=N-E wherein A = residue of an initial component, M and M<1> = middle components free from hydroxyl groups, and E = an amine coupled in pposition to the free aminogroup, in the free amino-group of the final component with m- or p-nitrobenzoylchloride, a homologue or a substitution product thereof, and reducing. When diazotized on the fibre and developed with #-naphthol, 1-phenyl-3-methyl-5- pyrazolone or acetoacetic arylides brownish shades are produced. For example, the trisodium salt of the dyestuff 2-naphthylamine-6 : 8-disulphonic acid # technical mixture of 1-naphthylamine-6- and 7-sulphonic acids # m-toluidine is condensed with p-nitrobenzoylchloride, reduced with sodium sulphide, diazotized and developed on the fibre with #-naphthol (reddish brown) or 1 - phenyl - 3 - methyl - 5 - pyrazolone (yellowish brown). The disodium salts of the dyestuffs, 2- naphthylamine-4-:8-disulphonic acid # mtoluidine, # p-aminobenzoylaminohydroquinonedimethylether and aniline-2:5-disulphonic acid # technical mixture of 1-naphthylamine-6- and 7-sulphonic acids # alpha-naphthylamine # p-amino-benzoyl-m-toluidine when developed with #-naphthol give brownish-red and brownishviolet shades respectively.
Patent GB-981488-A (GB)
Title: Improvements in earth leakage circuit breakers
Inventor: COLEMAN EDWARD
IPC: H01H83/02
Filed: 1962-10-09
Abstract: 981,488. Automatic circuit breakers; protective arrangements. J. A. CRABTREE & CO. Ltd. Oct. 7, 1963 [Oct. 9, 1962], No. 38126/62. Headings H2B and H2K. The earth leakage circuit breaker of Specification 763,228 is modified by the provision, across the earth leakage trip coil, of an auxiliary switch which is open while the circuit breaker contacts are closed and closes upon opening thereof to short the trip coil and prevent its burning out due to persisting leakage current, as from an adjacent unprotected installation. An insulating link 40 is pivotally attached at 41 to the contact arm 29, its other hooked end 42 acting on a blade spring contact 43 engaging a fixed contact 49 when the main contacts 29, 31 are open.
Patent GB-1163941-A (GB)
Title: Amplifier
IPC: H03F3/72
Filed: 1966-08-25
Abstract: 1,163,941. Transistor circuits; amplitude modulation; pulse modulation circuits. RADIO CORPORATION OF AMERICA. 25 Aug., 1966 [10 Sept., 1965; 27 June, 1966], No. 38204/66. Headings H3R, H3T and H4L] An amplifier or a modulator employing at least one insulated gate field effect transistor with its gate connected to an input terminal, and its source-drain path connected to an output terminal has its working point stabilized by means of a negative feedback path which includes a further field effect transistor. A first embodiment, Fig. 1, comprises an N-type field effect transistor 1 and a P-type field effect transistor 2 connected in series across a supply. With a small or large input applied at terminal 4, the circuit has only very low gain, but for an intermediate range of inputs the gain is high, and operation is stabilized by a negative feedback path including a further field effect transistor 3 connected between the output terminal 5 and the input terminal 4. The gate of transistor 3 may either be connected to a constant bias so that the circuit operates as an amplifier or alternatively it may be connected to a source of modulation to amplitude modulate or gate a sine- or square-wave carrier applied to input 4. In a first modification, Fig. 9 (not shown), the transistor 2 is replaced by a further N-type, and in a second modification, Fig. 7 (not shown), the feedback path comprises a P-type and an N-type transistor fed in pushpull. A number of stages may be provided with a single feedback loop, Fig. 8 (not shown).
Patent GB-336867-A (GB)
Title: Improvements relating to control valve devices for controlling emergency shut-off valves
IPC: F16K17/32
Filed: 1929-12-13
Abstract: 336,867. Cockburns, Ltd., and MacNicoll, D. Dec. 13, 1929. Valves controlled by pilot or relay valves. - A control valve device for controlling an emergency valve 4 operated by a piston 3 comprises a valve 1 supplying fluid pressure to one side of the piston 3 through a duct 2, a valve 5 controlling the exhaust from the other side of the piston and a spring- loaded crosshead 6 urging the supply and exhaust valves 1, 5 towards their seats. The crosshead 6 is movable on a spindle 7 the outer end of which is formed with a quick-threaded screw and carries a lever 8 which is normally clear of the crosshead 6 and is movable on said screwed portion to engage the crosshead 6 and open the supply and exhaust valves 1, 5 thereby effecting rapid closure of the main valve 4.
Patent GB-383009-A (GB)
IPC: C06F1/20
Abstract: 383,009. Cutting paper &c. matches. RAHE, S. E., Springfield Garden, New York, U.S.A. Oct. 6, 1931, No. 27790. [Class 31 (i).] In the manufacture of match books from paper, fibre, &c. strips 10 which may have been impregnated, coloured, and printed, and correspond in length to the width of a number (e.g. 10) of match cards, covers are positioned at an angle to the headed cards in the dipping carrier, the cards being ejected edgewise against the covers which are folded completely over them. Successive strips 10 are pushed by a plate 17 between trimming cutters 18, 19, and beneath a plunger 25 which pushes each strip down a passage 26 so as to position it upon a holding plate 27 carried by a pusher plate 28. The strip is then brought beneath splint slitting knives 44 some of which sever it into separate cards. A further movement carries the cards beneath a presser foot 46<1> grooved to mesh with the plate 27 and effecting in its descent the splaying of adjacent splints.
Patent GB-1323755-A (GB)
Title: Black body radiation sources
IPC: H05B3/00
Filed: 1970-08-10
Abstract: 1323755 Black body radiation sources SANDERS ASSOCIATES Inc 10 Aug 1970 [19 Aug 1969] 38505/70 Heading F4U A black body radiation source comprises a radiation cavity 10, a heat transfer chamber having an evaporator portion, a working fluid disposed within the chamber and means 16 for heating the evaporation portion of said chamber to vaporize the working fluid such that the said vapours condense on the outer surface of the cavity 10, to thereby heat the cavity to a substantially uniform temperature. As shown, the heat transfer chamber is in the form of a heat pipe having a capillary structure 12 disposed about the outer surface of the cavity and the sidewalls of the chamber. Alternatively, the heat transfer chamber may be in the form of a Perkins Tube arrangement (see Fig. 2, not shown).
Patent GB-1362317-A (GB)
Title: Apparatus for producing a spray
IPC: B05B1/18
Filed: 1972-08-18
Abstract: 1362317 Shower spray EGLOFF & CIE AG 18 Aug 1972 [20 Aug 1971] 38551/72 Heading B2F  A spray comprises a head 2 having a tangential water inlet 9 entering a cylindrical chamber 10 which opens into a conical chamber 11 the outer end of which has grooves 12 formed in the wall whereby a water spray is produced. Means may be provided for adjusting the area of the inlet 9.
Patent GB-1147038-A (GB)
Title: Method of preparing acrylonitrile or methacrylonitrile
IPC: B01J27/19
Filed: 1966-08-30
Abstract: 1,147,038. Acrylonitrile and methacrylonitrile. B. F. GOODRICH CO. 30 Aug., 1966 [30 Aug., 1965 (7); 21 Jan., 1966], No. 38586/66. Heading C2C. Acrylonitrile or methacrylonitrile are produced by passing propylene or isobutylene, ammonia and an oxygen-containing gas over a catalyst, a molar ratio of 1À5-4 mols of oxygen per mol of propylene or isobutylene and of 0À5-1À75 mols of ammonia per mol of propylene or isobutylene being employed, the catalyst comprising a mixture of molybdenum oxide, tellurium oxide and a metal phosphate wherein the metal is a Group IIA metal, copper, aluminium, tin, antimony, bismuth, zinc, cadmium, a Group VIII metal or uranium and wherein each P atom is bound to 3 or 4 atoms of oxygen in a molar ratio of 100 molybdenum oxide, 10 to 100 tellurium oxide and 10 to 100 metal phosphate. The reaction is suitably effected at 300-525‹ C. preferably in the presence of 0-7 mols steam per mol of propylene or isobutylene, employing a contact time of 2 to 70 seconds, and an inert diluent gas may be present. The catalyst may be prepared by dry-blending the ingredients or by mixing aqueous solutions of the individual components followed by drying and baking. The catalyst may be carried on a conventional support.
Patent GB-1357907-A (GB)
Title: Time sharing subscriber communications system
Inventor: MOSES D W
IPC: H04N7/16
Filed: 1971-04-19
Abstract: 1357907 Communications system MINNESOTA MINING & MFG CO 19 April 1971 [9 March 1970] 38604/73 Divided out of 1357905 Headings H4K and H4L The description is substantially identical to that of the parent Specification but the claims relate to the feature that each station in the series chain of stations removes the first time slot of each incoming frame, this slot always containing information related to the station, and then adds fresh information for onward transmission as the last time slot of the frame. The Specification discloses some additional methods of modulation in one of which the synch. pulse or some arbitrarily numbered pulse is used for defining the start of a modulation period that may end one, two or even more pulses later. Speech samples from two or more channels are added in order to obtain this state of events. As a further alternative reference pulses may be inserted alternately with the modulation pulses.
Patent GB-1151314-A (GB)
Title: Improvements in and relating to Fastenings
IPC: E05C9/08
Filed: 1967-08-22
Abstract: 1,151,314. Locks. HUWIL-WERKE HUGO WILLACH & SOHNE OFFENE HANDELSGESELLSCHAFT. 22 Aug., 1967 [26 Aug., 1966], No. 38621/67. Heading E2A. A lock comprises a rod with a central cranked portion which fits in a recess in a slider which is movable within a casing transversely of the longitudinal axis of the rod to project a bolt thereon and to rotate the rod end portions to bring projections thereon into fastening position. The casing 1 has a trough shape and the cranked portion of the rod engaged in the recess in the slider with the bolts 8b in contact with the base of the trough. The cranked portion has end trunnions which engage bearings in the casing. Rods 4a, 4b engage in the trunnions for rotation therewith. As the slider displaces the cranked portion the rods 4a, 4b rotate to bring end projections into engagement with eyes or the like. The slider is combined with detents for operation by a key.
Patent GB-1437325-A (GB)
Title: Fm demodulator
IPC: H03D3/20
Filed: 1972-08-18
Abstract: 1437325 Demodulators RCA CORPORATION 16 Aug 1973 [18 Aug 1972] 38708/72 Heading H3A In an f.m. demodulator, the signal to be demodulated is split into two antiphase signals A, B which are fed to the two inputs of respective coincidence detectors 173, 175 via two respective paths having unequal delays and the resulting constant width pulses are summed at 176 and fed to a low pass filter 177. As described, the f.m. signal is limited at 152 and fed to a phase splitter 163 to produce the two signals A, B which are processed in two identical channels before being summed in gate 176 and applied to the filter 177. In channel A, for example, the signal is first delayed by inverter 166 and then split into a first path which is applied directly to detector 173 and a second path which is fed to it via delays 167, 168, 172. Similar elements are employed in channel B.
Patent GB-848725-A (GB)
Title: Improvements in apparatus for assisting respiration
Inventor: BLEASE JOHN HENRY
IPC: A61M16/00
Filed: 1957-12-13
Abstract: 848,725. Respiratory appliances. BLEASE ANAESTHETIC EQUIPMENT Ltd. March 13, 1959 [Dec. 13, 1957], No. 38805/57. Class 81(2). Artificial respiration apparatus has triggering means to ensure positive inflation of the lungs immediately the patient makes an effort at respiration. A chamber 1 is connected with a continuous supply of air through the jet of a Venturi device 3 and through a pipe 4, both joined to a proportioning valve 5, and, as the pressure in the chamber increases, bellows 6 are compressed to force air or oxygen into the patient's lungs through a tube 9, the pipe line being fitted with non-return valves 7, 8. When the pressure in chamber 1 has risen sufficiently, a diaphragm 10 is moved towards the right, air enclosed in chamber 11 being discharged through release valve 24, and valve 13 is thereupon opened so that chamber 1 is connected to atmosphere and Venturi 3 becomes effective to withdraw air from the patient's lungs. The subsequent closure of valve 13 by diaphragm 10 is dependent on the rate of air flow into chamber 11 through bleed valve 17, the return movement being caused by an adjustable spring 14. If, during the exhalation phase of the apparatus the patient attempts to inspire, the additional rarefaction in the tubes 25, 26 causes diaphragm 20 to be raised and to open valve 24, whereupon diaphragm 10 immediately moves back, to close valve 13, and the inhalation phase commences. Specifications 649,229 and 806,471 are referred to.
Patent GB-1379578-A (GB)
Title: Fluidised bed apparatus
IPC: F23C10/00
Filed: 1971-08-18
Abstract: 1379578 Fluidised bed apparatus COAL INDUSTRY (PATENTS) Ltd 4 Aug 1972 [18 Aug 1971] 38813/71 Heading B1F [Also in Division F4]  The circulation of particles within a fluidised bed is promoted by arranging baffles above the bed so that particles leaving the bed at one location are deflected to return to the bed at a different location. The bed 6 may be subdivided by walls 14 below each inclined baffle 8, Fig. 2, so that the bed particles travel from one compartment to another. The distributor plate 12 for the fluidising gas may be sloped in each compartment to encourage the overall flow, or several separate circulatory flows may be promoted by a distributor plate of flattened saw-tooth form, Fig. 3. One end of a baffle may be immersed in the bed, and by suitable control of the fluidising gas flows, particles may be caused to flow from one section 46 of a fluidised bed, Fig. 6, over a wall 30 to pass below an immersed baffle 32 and contact heat exchange tubes 42.
Patent GB-1018149-A (GB)
Title: Improvements in arc welding
Inventor: BYSTRAM MIKOLAJ CYPRIAN TOMASZ
IPC: B23K35/30
Filed: 1963-10-02
Abstract: An arc welding electrode deposits a weld metal of the following composition:  <TABS:1018149/C6-C7/1> The following electrode constructions are referred to:  (a) Flux coated hand electrode Core wire: .Ni.25 -75% .Cr.10 -20% .Nb.0 -2% .C.0.03- 0.4% .Si.1% .Mn.0.2 - 2% .Mo.0 - 8% .W.0 - 2% .S.0.04% maximum .P.0.04% maximum .Fe.balance Extruded coating: <TABS:1018149/C6-C7/2> (b) Flux cored automatic electrode Core wire, winding wire and sheating strip: .Ni.25 -75% .Cr.10 -20% .Nb.0 - 2% .Mn.0.5 - 2% .W.0 - 2% .Mo.0 - 8% .Si.1% maximum .C.0.04- 0.4% .S.0.04% maximum .P.0.04% maximum .Fe.the balance Flux: .Fe-Mo or Mo.30-70% .Fe-Nb.5-30% .W.5-30% .Ni.5-30% .CaCo3.0-30% .CaF2.0-30% .Extrusion aids.0- 5% (c) Flux cored automatic electrode Cylindrical sheath: .Ni.25 -75% .Cr.10 -20% .Nb.0 - 2% .Mo.0 - 8% .W.0 - 8% .Mn.0.5 - 2% .C.0.04- 0.4% .Si.1% maximum .S.0.04% maximum .P.0.04% maximum .Fe.the balance Flux: .Fe-Mo or Mo.20-60% .Fe-Nb.5-30% .W.5-30% .Ni.0-30% .CaCo3.0-30% .CaF2.0-30% (d) Flux cored automatic electrode Cylindrical sheath: .Nickel strip.(min.95% Ni) Flux: <TABS:1018149/C6-C7/3> Electrodes (b), (c) and (d) are suitable for submerged arc welding.
Patent GB-843689-A (GB)
Title: Hydrazine derivatives
IPC: C07D211/58
Filed: 1956-12-24
Abstract: The invention comprises: (a) hydrazine derivatives of the general formula:  <FORM:0843689/IV(b)/1> wherein R1 represents hydrogen or an alkyl or acyl radical (especially a C1-4 alkyl radical or a C1-12, preferably C1-8, acyl radical), and R11 represents an alkyl radical (preferably of 1-4 carbon atoms), with the proviso that R1 and R11 may be similar or dissimilar alkyl radicals; (b) the acid addition salts of compounds (A); (c) certain of the intermediate products of the general formulae (D) and (H) below (and then acid addition salts in some cases); (d) preparation of compounds (A) by the following processes: (i) condensing a hydrazine of the general formula R1NX-NH2 (B) (wherein X represents hydrogen or an acyl radical, with the proviso that only one of X and R1 may be hydrogen or acyl with a 4-piperidone of the general formula <FORM:0843689/IV(b)/2> to form a hydrazone of the general formula <FORM:0843689/IV(b)/3> and hydrogenating this (e.g. catalytically or with nascent hydrogen and, if desired, after acylation when X in compound (B) is hydrogen), any acyl group in the hydrogenation product being subsequently split off; (ii) condensing a 4-halopiperidine of the general formula <FORM:0843689/IV(b)/4> (wherein Y represents a halogen atom) with a hydrazine of the general formula R1NH-NH2 (F) (advantageously in an alcohol as solvent); (iii) (when R1=H) condensing a 4-aminopiperidine of the general formula:  <FORM:0843689/IV(b)/5> with chloramine or bromamine in the presence of a protective colloid, acidifying the reaction mixture, liberating the required base (A) with alkali and extracting it with a solvent therefor; (e) preparation of hydrazones (D), other than those in which R1 or X is a pyridylcarbonyl radical, by the first step of process (i); (f) preparation of hydrazines of the general formula <FORM:0843689/IV(b)/6> (wherein R1 represents hydrogen or an alkyl radical and X1 represents an acyl radical) by the first two steps of process (i); (g) conversion of compounds (A) into their acid addition salts (e.g. with the acids listed in Specification 843,688).  The compounds (A) are useful as intermediates in the process of Specification 843,688, and in some cases (e.g. when R1 is an acyl radical, especially benzoyl, salicyloyl or isonicotinoyl) as hypotensive agents.  Specification 843,692 also is referred to.
Patent GB-1440981-A (GB)
Title: Hydrodesulphurization of petroleum residue
IPC: C10G45/02
Filed: 1973-08-20
Abstract: 1440981 Hydrodesulphurization of residual oils EXXON RESEARCH & ENG CO 20 Aug 1973 39267/73 Addition to 1358456 Heading C5E Sulphur-containing petroleum residuum feed is hydrodesulphurized by contacting with hydrogen in the presence of a catalyst comprising a compound of cobalt or nickel, and a compound of molybdenum or tungsten, and having a surface area of at least 100 m.<SP>2</SP>/g. in pores of diameter 30-80Š; the catalyst being staged in multiple beds separated one from another to provide spaces into which liquid water is injected in amount corresponding to a steam concentration of up to 50 volume per cent of the total volume of gases in the reaction zone. The reaction can be carried out at 625-800‹ F. and 500-5000 p.s.i.g. using a sulphided catalyst; a suitable catalyst support contains 94-99 wt. per cent alumina and 1-6% silica. The injection of water reduces the temperature rise necessary to maintain the required degree of desulphurization during the first 15 days of the run.
Patent GB-1116078-A (GB)
Title: Improvements in or relating to a rotary-percussion drill bit for drilling boreholes
IPC: E21B10/56
Filed: 1965-09-14
Abstract: 1,116,078. Boring earth &c. HUGHES TOOL CO. 14 Sept., 1965 [14 Sept., 1964], No. 39278/65. Addition to 995,599. Heading E1F. A modification of the rotary-percussive bit according to Specification 995,599 has the lower peripheral surface replaced by peripheral surfaces 6A, 6B separated by a shoulder 6C. The surface 6B may be provided with wear resistant inserts or hard facing, and the inserts or facing may be inserted into indentations in the bit immediately prior to drilling through loose rock.
Patent GB-849775-A (GB)
Title: Improvements in and relating to pile fabric knitting machines
IPC: D04B9/14
Filed: 1956-12-28
Abstract: 849,775. Knitting-machines. MOORE, D. P., and DE PERPIGNA, A. N. Dec. 28, 1956 [Jan. 4, 1956], No. 39536/56. Drawings to Specification. Class 74 (2). A fibre-feeding device of a knitting-machine for forming pile fabric is mounted above the bed-plate of the machine to feed the fibres to the needles and is driven through chain and sprocket mechanism from gearing which is itself driven from the needle cylinder. The gearing may be supported in a housing positioned above or beneath the bed-plate and is driven from a gear-wheel on the lower end of the needle cylinder.
Patent GB-1167800-A (GB)
Title: Improvements in and relating to a Device for Sorting and Directing Conical Bobbins.
Inventor: ROETGERINK JOHANNES A
IPC: B65H67/06
Filed: 1967-08-30
Abstract: 1,167,800. Orientating bobbins. MACHINEFABRIEK M. BROUWER & CO. N.V. 30 Aug., 1967 [2 Sept., 1966], No. 39626/67. Heading B8S. [Also in Division D1] Hollow conical bobbin 2, Fig. 1, falls from. shoot 3 into channel 1 and is displaced left or right according to its orientation by finger 6. The finger 6 is held resiliently downwards and is mounted on carriage 5 which is reciprocated by bars 9 so that when the finger moves rightwards it engages the rising surface of bobbin 2 and yields till it has slid over the end of the bobbin. Then, moving leftwards, finger 6 displaces the bobbin shown to the left. When however the bobbin is in the other orientation it immediately engages the large end of the bobbin to displace it rightwards. In this way two sets of bobbins are formed on the left and the right. Receiving stations. Fig. 5.-The bobbins which move to the left are received in shoot 37 formed of walls 37a and 37b pivoted at 47 so that when a number of bobbins have formed themselves into a stick a switch is operated to open the jaws and to permit them to fall. Similarly the bobbins which are displaced to the right fall into shoot 38, form a stick which operates switch 54 to open the jaws to permit the stick to fall. Alternative receiving station, Fig. 4.-Each bobbin 27 is received beneath spring-influenced element 28 and is displaced forward by pusher 30 operated by cylinder 34 so that the bobbin enters the hopper shown, all the bobbins being uniformly oriented within it. Operation of cylinder 23 opens the jaws 21, 21a forming the bottom of the hopper to permit the discharge of the bobbins from the hopper. Further orientation of the bobbins, Fig. 6.-The bobbins are displaced from channel 60 by reciprocating pin 61 and are received in the two receiving stations 66 and 65. They are displaced by respective pushers 74a, 74b and 73a, 73b so that each bobbin is displaced to the centre of the cylindrical guides 67, 68 and in the central position are received in a hopper, Fig. 8 (not shown), so that the two differently orientated sets of bobbins are finally collected in a hopper uniformly orientated.