baber/WOPTO huggingface dataset:
Patent GB-978708-A (GB)
Title: Scanning mechanism for light tracking devices
IPC: G01S3/786
Filed: 1962-08-27
Abstract: 978,708. Light source trackers. KOLLSMAN INSTRUMENT CORPORATION. Aug. 27, 1962 [Dec. 11, 1961], No. 32842/62. Heading H4D. A light source tracking device (e.g. star tracker) is provided with a shutter, Fig. 2, oscillating across the image of the source to be tracked and formed with an aperture 13 for rough tracking with a large amplitude of oscillation, said aperture being formed with a central opaque region 18 for fine tracking with a small amplitude. The shutter is oscillated at 400 c/s. by means of a coil 15 and biasing magnet 14 and produces two signals at the output 32, Fig. 3 of the photoelectric device detecting the interrupted light source rays, at respective frequencies of 400 c/s. and 800 c/s. As the source image nears the central position with respect to the shutter oscillations, the 800 c/s. signal rises to a maximum and the 400 c/s. falls to zero. Around this central position the noise level overpowers the 400 c/s. signal level and fine tracking using this signal and the aperture 13 becomes impossible. The smaller amplitude scanning with the central opaque strip 18 then produces the required higher signal/noise ratio for the 400 c/s. signal. The two signals are separated out in tuned amplifiers 33 and 34 and detected for signal level in detectors 35 and 36. The two detector outputs are fed to a gate 37 constructed such that the 800 c/s. detector signal is only let through in the absence of any 400 c/s. detector signal-i.e. around the said central positioning. The 800 c/s. detector signal is then passed via OR circuit 40 to a switch circuit 31 to change the energization of the coil 15 from E to - 0.1 E, the change from aperture to opaque strip scanning necessitating the change in phase. Gate 37 also feeds its signal to a Schmitt circuit 38 triggering a pulse circuit 39 to produce a one-second delay pulse to control the switch circuit 31 during the transient period between the two states of the coil energization. A presence of signal, signal is fed to OR circuit 41 from an A.G.C. circuit connected between the two detectors 35 and 36 and, during the said transient period, from the delay circuit 39. The change of phase in the coil energization may be replaced by a phase reversal in the reference signal. The A.G.C. signal may be used to control the gain of the photosensitive means to render the arrangement independent of source magnitude.
Patent GB-346683-A (GB)
Title: Improvements relating to plastic compositions
IPC: C04B33/13
Filed: 1929-10-29
Abstract: Finely divided non-plastic materials are rendered suitable for moulding, extrusion, &c. by the addition of an aqueous starchy binder, such as flour paste, containing a stabilizing agent which prevents the separation of water when the mass is subjected to pressure.  Electrolytes, such as ammonia, sodium or potassium hydroxide, or acetic acid, are suitable stabilizing agents. Non-plastic materials specified include tungsten, iron, copper, nickel, carbon, silicon, zirconia, alumina, magnesia, thoria, aluminates, silicates, clay, felspar.  According to an example, 100 parts of magnesia, or a mixture of magnesia and talc, is mixed with 30-40 parts of a flour paste containing an electrolyte.  The mixture is moulded or extruded and baked at about 100 DEG  C. to produce sufficient strength to permit of machining.  The product is then fired, e.g. at about 1600 DEG -1700 DEG  C., to sinter it, and remove carbonaceous matter.  Porcelain may be made without the use of ball clay, for example, 37-50 parts of felspar, 16 parts of flint, 11-17 parts of Florida kaolin, 23-27 parts of china clay are made plastic by the addition of flour paste (6-2 per cent), baked and fired. Tungsten rods or tubes, also cutting tools, e.g. of tungsten carbide and cobalt, may be made by mixing with the paste, extruding, and firing.
Patent GB-1371723-A (GB)
Title: Catalytic structure and method of same
IPC: B01J23/72
Filed: 1972-07-14
Abstract: 1371723 Copper compounds: bromine: sulphur trioxide TEXACO DEVELOPMENT CORP 14 July 1972 32953/72 Heading C1A [Also in Divisions B1 C2 C5 and F1] Catalytically-active crystalline material having a specified X-ray diffraction pattern and the empirical formula, expressed in terms of oxides, xCuO.yAl2O3.nH2O wherein x is from 1 to 3, y is from 1 to 4 and n is a positive number, is prepared, in the form of a layer adherent on a support, by a procedure wherein the support is contacted, at a temperature preferably of from 100 to 212‹ F., with a solution which is prepared from an aluminate, an ammoniacal reagent, for example ammonia or ammonium hydroxide, and a copper oxide, hydroxide or salt, for example carbonate nitrate, sulphate, chromate, acetate, benzoate or oxalate, and which has a Cu to Al molar ratio of from 1À5 to 5 and a NH3 to Cn molar ratio of at least 4. The aluminate may be prepared from aluminium chips or fragments and a base, for example lithium hydroxide, sodium hydroxide, potassium hydroxide or a quaternary organic hydroxide such as tetramethyl ammonium hydroxide. Contacting may be effected in water, methyl alcohol, ethyl alcohol or propyl alcohol; the resulting coated support may be calcined at a temperature of from 300 to 1000‹F. As exemplified, the crystalline material is prepared fom aluminium chips, sodium hydroxide, ammonium hydroxide and either copper sulphate (Example I) or copper nitrate (Example II or III). The structure comprising the catalyticallyactive layer, which may have a thickness of from 1 to 100 mils., and the support, which may be contained in a casing or tube, may be in the form of bells, bars, chain, mesh, plates, saddle, sheet, tubes or wire and may be formed of steel, stainless steel, nickel, titanium, a sintered metal material or a refractory or ceramic material, for example silica, a high melting glass or a refractory metal carbide, silicate or oxide such as magnesia, may be used in the conversion of sulphur dioxide to sulphur trioxide in stack gases; Example II refers to the use of a structure comprising a nickel-chromium-iron alloy mesh support in the oxidation of hydrogen bromide to bromine.
Patent GB-958003-A (GB)
Title: Conveyor elevator
IPC: B65G21/14
Filed: 1962-08-28
Abstract: 958,003. Portable endless conveyers. W. M. GREAVES. Aug. 28, 1962 [Aug. 29, 1961], No. 33066/62. Heading B8A. A portable foldable elevator comprises two frame parts 6, 7 hinged together at 8 and supporting an endless conveyer chain 15 provided with pins 17 for engaging the load articles. The articles are supported on roundsection rails 21 and the upper run of the chain is supported in a channel 16. The lower run is supported by an idler sprocket 20. To permit folding of the frame parts 6, 7 without removing the chain, a terminal idler sprocket 19 is mounted between arms 22 which are pivotally mounted in the frame part 7. In the folded form of the elevator, Fig. 5, the chain 15 is slackened by swinging the assembly 22 around to the position shown in Fig. 11 and the chain engages bars 43 of the frame parts. A motor 35 drives the chain through a pulley 40, belt 41 and pulley 31 and a motor mounting plate 32 is secured to the frame part 6 for longitudinal adjustment along slots 33. A motor carrying frame 34 is secured to the plate 32 by a bolt 36 and wing nut 37 and the motor is located at the desired angle relative to the elevator by apertures 38 in the frame 34 which engage around a projection 39 on the plate. Figs. 1, 3 show the elevator extended, the frame parts 6, 7 being locked together by bolts 11 engaging nuts 12, and the idler sprocket arm assembly 22 being maintained in its extended position, Fig. 10, by bolts and nuts 25, 26.
Patent GB-1324331-A (GB)
Title: Preparation of n-substituted 6,7-methylendioxy-4-quinolone  derivatives
IPC: C07F9/09
Filed: 1970-07-08
Abstract: 1324331 Preparation of N-substituted-6,7- methylenedioxy-4-quinoline derivatives SUMITOMO CHEMICAL CO Ltd 8 July 1970 [9 July 1969 10 July 1969 12 Nov 1969 23 Feb 1970] 33198/70 Heading C2C Novel compounds of the general Formula II wherein R is C 1-20  alkyl or C 2-4  alkenyl and R 1  is hydrogen or C 1-20  alkyl may be reacted with acid anhydrides or acidic substances or mixtures thereof at 0‹ to 200‹ C. to form compounds I The compounds II may be prepared by reaction of 3,4-methylene-dioxy-aniline with an alcohol R-OH in the presence of a hydrogenation catalyst to yield IV which in turn may be reacted with dialkyl ethoxymethylene malonate V to form II N - ethyl - 3,4 - methylenedioxyaniline may be prepared either (a) by reaction of 3,4-methylene dioxyaniline with ethanol and Raney nickel or (b) by simultaneous reduction and N- alkylation of 3,4-methylene-dioxynitrobenzene using the same reactants. N-methyl-3,4-methylenedioxyaniline may be prepared by method (a) using methanol. Pharmaceutical compositions of I may show antimicrobial activity.
Patent GB-1366620-A (GB)
Title: Darts
IPC: D05B35/10
Filed: 1972-07-15
Abstract: 1366620 Sewing aid R N NIELSEN 15 July 1972 33226/72 Heading D1G [Also in Division A3] A dart is sewn in a fabric panel using a seam guide template corresponding in shape to the half of the dart to one side of the bisector of the acute angle of the dart. A pattern 12 is laid on the fabric 10 and folded along the bisector 16 to expose part of the fabric beneath, the template 20 is placed in the position formerly occupied by the folded back portion of the pattern, the pattern is removed, the fabric is folded under along the edge corresponding to the bisector 16 producing (Fig. 4 not shown) a folded edge aligned with one long edge of the template and the two thicknesses of fabric stitched together along the other long edge 40 of the template. The template, which may be of cardboard or light metal, is provided with tabs 36 which are bent under the folded back fabric. Additionally the template may be provided on its under face with a non-drying adhesive normally protected by a paper sheet which may comprise the paper pattern.
Patent GB-497171-A (GB)
Title: Improvements in the process for the preparation of silica for glass batches
IPC: C03C1/02
Filed: 1937-12-01
Abstract: In the process described in the parent Specification for preparing silica for glass batches, the flotation reagent added to the silica in an acid solution includes a naphthylamine compound, naphthalic acid or alpha naphthyl isocyanate instead of a sulphur derivative of cresol.  The naphthylamine compound may be alpha or beta naphthylamine hydrochloride, 1-naphthyl-amine 4-sulphonic acid, 1-naphthylamine 4-8 disulphonic acid, 2-naphthylamine 4, 8-disulphonic acid or 1-naphthylamine 3, 6, 8-trisulphonic acid. The pulverized impure silica is mixed with water acidulated with 1 per cent of mineral, preferably hydrochloric or sulphuric, acid, passed into the apparatus where it is agitated and maintained at 50 DEG  C. by steam.  Pine oil and one of the above naphthalene derivatives in amounts respectively of one liquid ounce and one ounce avoirdupois to one hundred pounds of silica are added.  A magnetic separator may be used instead of the concentration table employed before the flotation process.
Patent GB-840774-A (GB)
Title: Improved photographic materials having paper supports
IPC: G03C1/91
Filed: 1956-10-31
Abstract: 840,774. Photographic papers. KODAK Ltd. Oct. 31. 1956 [Oct. 31, 1955], No. 33318/56. Class 98(2) [Also in Group VIII] A photographic silver halide material has a paper support which has been sized with an aqueous gelatin solution containing a ketene dimer of the formula: wherein R is an alkyl group of 10-18 carbon atoms. The silver halide emulsion layer, or a gelatin filter, antihalation or baryta layer also may contain a ketene of the above formula which may be the same as or different from the ketene used to size the paper. In the examples the ketene is one wherein R is -C16H33, and in most examples the paper contains titanium dioxide, melamine formaldehyde, aluminium chloride and gelatin, and sometimes starch, or sodium stearate size precipitated on the fibres by aluminium chloride ("A"-size).
Patent GB-804250-A (GB)
Title: Means for limiting any tendency for a conveyor belt to deviate from a set central course
Inventor: WILDE DENNIS
IPC: B65G39/16
Filed: 1955-11-22
Abstract: 804,250. Endless belt conveyers. FIBREGLASS, Ltd. Oct. 11, 1956 [Nov. 22, 1955], No. 33377/55. Class 78 (1). The lower run of a conveyer 3 passes over rollers 7, 8, the shaft 9 of the former of which is movable axially in ball races in self-aligning housings 10 fixed to the framework 11 and the shaft 13 of the latter of which is supported in a self-aligning bearing 14 fixed with respect to the framework and in a rigid ball race mounted on a carriage 16 which is movable longitudinally of the belt. A roller 18 mounted at the free end of one arm of a bell-crank lever 19 is disposed between spaced collars 17 on the end of the shaft 9. The other arm of the lever 19 is connected by a pin-and-slot connection to a link 20 attached to the carriage. Any deviation of the belt causes one of its edges to contact a flange 12 of the roller 7 with consequent axial movement of the shaft 9. This movement will turn the lever 19 and the carriage 16 will be moved along the framework 11 to turn the shaft 13 of the roller 8 angularly in a direction to steer the belt back towards the centre.
Patent GB-1197612-A (GB)
Title: Compositions containing Polytetrafluoroethylene
Inventor: FERSE ARMIN
IPC: C08K5/49
Filed: 1967-07-20
Abstract: 1,197,612. P.T.F.E. compositions. INSTITUT FUR SILIKONUND FLUORKARBONCHEMIE. 20 July, 1967, No. 33461/67. Heading C3P. Compositions comprise polytetrafluoroethylene with a content of from 0À2 to 4% by weight of an organic amine, amide or phosphine, referred to the weight of the polytetrafluoroethylene. The compositions may be formed by intimately mixing the constituents, e.g. by adding the additive to the polytetrafluoroethylene in solution, by deposition by evaporation or in the form of a salt. In the examples the additives used are morpholine, aniline, ethylene diamine, monoethanolamine, piperidine, acetamide, triphenyl phosphine and tributyl phosphine.
Patent GB-201098-A (GB)
Title: Improvements in and relating to concrete building blocks
IPC: E04B2/20
Filed: 1922-12-07
Abstract: 201,098. Henderson, A. Dec, 7, 1922. Bricks and building-blocks, special shapes of.- Building blocks are provided at each end with a recess 5 having projections 6 substantially flush with the end of the block. The projections 6 are in the form of spaced lugs having their walls parallel with the walls of the recess and the block. Passages 7 opening at their ends into the recesses, extend through the blocks, and keyways 9 are formed in the sides and ends. Reinforcing rings may be embedded in the blocks. In a modification, the block is hollow, and a projection 6a, Fig. 3, is surrounded by a recess 5a, this type being adapted for conduits &c.
Patent GB-1450027-A (GB)
Title: Optical apparatus
IPC: G02B27/64
Filed: 1970-07-09
Abstract: 1450027 Stabilizing optical equipment; automatic control DEFENCE SECRETARY OF STATE FOR 9 July 1971 [9 July 1970] 33497/70 Headings G2J and G3N Optical apparatus includes means for compensating for movement thereof which would otherwise result in corresponding relative motion of the optical image in the apparatus. In one particular embodiment, a reference gyroscope 11 has a casing secured to an inner gimbal 12 for angular movement about a pitch axis 13 in an outer gimbal 14 supported for angular movement about a yaw axis 15 in a frame (represented by the ground sign 16). A television camera 17 is supported on the frame 16 and provides an optical image at a viewing presentation (not shown) of an object seen along its optical axis 18 by the camera. Two double Dove  prisms 19, 20 are supported on the frame 16 for angular motion about mutually normal support axes 21, 22. These axes are normal to the axis 18 and are respectively parallel with the gimbal axes 13, 15. Pick-off means 23, 24 afford control signals responsive to angular motions of the gyroscope 11 with respect to the inner gimbal 12 and are connected through corresponding pitch and yaw amplifiers 25, 26 to pitch and yaw torque motors 27, 28, respectively, which are operative to drive the prisms 19, 20 through drive-shafts 29, 30, respectively. Pivoted linkages having arms 31, 32 and 33, 34 connect inner gimbal 12 to drive-shaft 29 and outer gimbal 14 to drive-shaft 30, respectively. The lengths of the arms 32, 34 are twice that of the arms of the gimbals 12, 14, respectively. In operation, if the apparatus is rotated with respect to the pitch and/or yaw axes 13, 15 the image produced by the camera 17 would normally move correspondingly on the viewing presentation, but in this case signals proportional to the angular displacement of the gyroscope rotor with respect to its casing are fed from the pick-off means 23, 24 through the amplifiers 25, 26 to the torque motors 27, 28. At the same time, the relative movements of the inner and outer gimbals 12, 14 with respect to the frame 16 are operative through the linkages 31, 32 and 33, 34 to rotate the prisms 19, 20 through half the corresponding angular motion of the gimbals. This double control movement of the prisms has the effect of compensating for image movement which would otherwise take place as a result of movement of the camera. The control signals fed to the torque motors 27, 28 effectively comprise negative feedback signals whereby the prisms 19, 20 and the gimbals 12, 14 are turned until the pick-off means 23, 24 agains give a zero output.
Patent GB-976122-A (GB)
Title: Television camera chain
IPC: H04N5/222
Filed: 1962-08-31
Abstract: 976,122. Television. FERNSEH G.m.b.H. Aug. 31, 1962 [Sept. 1, 1961], No. 33500/62. Heading H4F. In order to permit the functioning of a television camera 1 to be tested the camera is provided with a projector 16 including a light source 20 arranged when energized by current from a source 21 (in practice a secondary winding of a transformer) to project an image of a test object upon the photo-sensitive member of the camera pick-up tube 2, the circuit from source 21 to light source 20 including the contacts of a relay 22 which is arranged for operation over a lead 23 from a manuallyoperable switch mounted on the desk 11 of the remotely located camera control unit. The projector 16 is mounted on the camera lens turret; when the camera is not in use, the operator normally rotates the turret so as to place the projector in the operative position in the light path to the pick-up tube. Alternatively, where the camera is provided with a remotely controlled lens turret, the turret may be arranged to rotate into the correct position automatically upon actuation of the control switch for relay 22. The output of the pick-up tube passes to a preamplifier 3 and is routed by cable to a main processing amplifier 8 in the remote control unit. The final signal is both displayed on a monitor 10 at the control unit and also sent back via the cable to the camera where it is displayed on the viewfinder 5. The arrangement according to the invention as described above may be combined with a known testing arrangement, Fig. 1 (not shown), in which a test signal generator is provided in the control unit and switching facilities are provided whereby the signal from generator may be sent to the camera and then via the preamplifier back to the main processing amplifier in the control unit from which it passes to the monitor.
Patent GB-862693-A (GB)
Title: A compound coupling for shafts
IPC: F16D3/76
Filed: 1958-10-21
Abstract: 862,693. Shaft couplings universal joints. GELENKWELLENBAU G.m.b.H. Oct. 21, 1958 [Jan. 16, 1958], No. 33549/58. Class 80 (2). A driving-shaft 6 carries flanges 9, 7, to the latter of which is bonded a layer 11 of rubber in turn bonded to a flange 5, secured to the input member 2 of a universal joint having its output member 1 transmitting drive to a propeller or like shaft.. In the form shown, a flange 9a integral with the flange 9 and a flange 12 bolted to the input member 2 of the universal joint are centred relatively to each other by a liner 13 made from a resilient synthetic resin.
Patent GB-876246-A (GB)
Title: Improvements relating to laminated shoe heels
Inventor: COX HERBERT FRANK
IPC: A43B21/36
Filed: 1958-10-21
Abstract: 876,246. Heels; protectors. CLARK Ltd., C & J. Oct. 8, 1959 [Oct. 21, 1958], No. 33563/58. Classes 17 (2) and 17 (3) One or more dowels of moulded plastic material constitute binding means for the laminations of a heel and extend within or throughout the depth of the heel, each dowel being keyed in position by means of its enlarged ends. As shown, Fig. 5, the moulded bifurcated rods are provided with flush conical heads 3, 3a at the heel seat and with a heel top piece 6 which may be shaped simultaneously with the heel; pre-shaped or countersunk flush with the top face as in Fig. 9. These dowel heads may have a lead in for s screw or nail for attaching protectors. The dowel may be of unitary, dual or bifurcated construction as shown in Figs. 9, 8 and 5 respectively and may be provided with a plate 8, Fig. 13, which forms a heel seat face which may have blind holes 9 to serve as locating means during the machining of the heel.
Patent GB-983507-A (GB)
Title: Improvements in or relating to crossbar switches for use in automatic telephone systems
Inventor: BROWELL LESLIE JAMES
IPC: H01H67/26
Filed: 1961-09-20
Abstract: 983,507. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Aug. 23, 1962 [Sept. 20, 1961], No. 33621/61. Heading H1L. In a cross-bar switch comprising at least one bridge consisting of a plurality of bridge commons, the bridge is electrically divided into two parts so that an inlet to the first part has direct access to outlets from the first part and has indirect access through the first part selectively to any one of the bridge commons of the second part and thence to outlets therefrom. The ten bridges BR1 to BR10 of a conventional 12 x 10 cross-bar switch are electrically divided into two parts SBC and LBC and in the case of a bridge having three bridge commons (triple-group working) SBC1 to SBC3 and LB1 to LBC3, an inlet II is connected, to one of the moving contacts of a first select magnet 1AM, to one of the moving contacts of a second select magnet 2AM and to a bridge common SBC3. The select bars are of the bidirectional type and are operable respectively by the pairs of select magnets ISM, 2SM; 3SM, 4SM &c. During a call, the bridge magnets, which operate after the select magnets, serve to hold a cross-point operated. In order to connect an inlet I1 to outlet 027, select magnets 1AM and 3AM must be operated, bridge common SBC1 serving to link the left-hand moving contacts of these magnets. To connect inlet I1 to outlet 03, select magnets 3AM and 1SM are operated whereby the inlet is connected via SBC3, and the right-hand moving contact of magnet 3AM to bridge common LBC3 and thence to the required outlet. Other configurations of select magnets in the two parts of the bridges are discussed.
Patent GB-1465931-A (GB)
Title: Electrical resistors
IPC: H01C1/14
Filed: 1974-07-30
Abstract: 1465931 Resistor terminations TRW Inc 30 July 1974 [16 Aug 1973] 33664/74 Heading HIS [Also in Divisions C1 and C7] A resistor termination is deposited on an insulating substrate by applying to the substrate a mixture of a glass frit (e.g. of a borosilicate glass) and oxide particles of one or more of Ru, Ir and Rh and firing the product in a non-oxidizing atmosphere until the oxide(s) dissociate to form the metal which sinters. The firing may be conducted in nitrogen at at least 900‹ C. (e.g. 1100-1150‹ C.); the initial mixture may contain 79-99 weight per cent of the metal oxide, to produce a product containing 60-92 volume per cent of the metal(s); copper or copper oxide particles may be included in the initial mixture (e.g. up to 5 volume per cent); and the mixture may be milled and applied in a vehicle such as butyl carbital acetate with or without toluol. Resistance film 16 is then applied.