baber/WOPTO huggingface dataset:
Patent GB-973770-A (GB)
Title: Explosive compositions
Inventor: BALDWIN WILSON CHARLES GEOFFRE
IPC: C06B47/00
Filed: 1962-12-11
Abstract: An explosive composition contains, by weight, at least 25% of nitrate, from 5-20% of water, and up to 17% of a sensitizing agent consisting of nitroglycol or a mixture of nitroglycol and nitroglycerine. Ammonium, sodium, potassium, or calcium nitrate, or a mixture of two or more of these, may be used as the nitrate component. Wheat flour, starch, sodium carboxymethylcellulose, or guar gum may be added as a gelling agent for the aqueous portion of the mixture, and nitrocellulose as a gelling agent for the non-aqueous portion. Other optional ingredients are wood meal and kieselguhr; when wheat flour is included, dinitrotoluene or mononitrotoluene may be present to prevent rancidity. Part of the sensitizing agent may be replaced by mono-, di- or tri-nitrotoluene, RDX, tetryl, or PETN. The explosives may be made suitable for blasting by including a booster.
Patent GB-1535935-A (GB)
Title: Electromechanical transducer with frequency compensation
IPC: H04R3/04
Filed: 1975-11-14
Abstract: 1535935 Recording apparatus IOWA STATE UNIVERSITY RESEARCH FOUNDATION Inc 14 Nov 1975 [14 Jan 1975] 47047/75 Heading G1J [ Also in Division H4] An electro-mechanical device (e.g. a chart recorder, relay, linear or rotational motor or servomotor) has a compensation network for modifying a frequency characteristic of the input signal, the compensation network including resistive, capacitative and inductive components each having a value representative of a mechanical response parameter of the transducer. A chart recorder 70, Fig. 7, or other device, in which the frequency response characteristic is a displacement response characteristic and the mechanical response characteristics include mass, a spring valve and a dissipation valve, is driven by a current controlled amplifier 62. A differentiating circuit 61 differentiates the output signal of the compensation 56. The compensation network includes a resistor, a capacitor and an inductance. The value of the resistor is proportional to the dissipation value of the device, the value of the inductance is proportional to the mass of the moving parts of the device and the value of the capacitor is inversely proportional to the spring value of the device.
Patent GB-1520537-A (GB)
Title: Noise-immune signal processing circuit for pulsed radars
IPC: G01S13/92
Filed: 1976-11-11
Abstract: 1520537 Pulse doppler radar NISSAN MOTOR CO Ltd 11 Nov 1976 [11 Nov 1975] 47049/76 Heading H4D A noise-immune IF signal processing circuit 18 in a pulse doppler radar for mounting on a vehicle includes comparators 21, 22, for generating output signals when the positive and negative half waves of the IF signal reach threshold values, a bi-stable device (flip-flop) 27 responsive to said signals, feedback circuits via resistors R5, R6, for varying the positive and negative thresholds in accordance with the binary state of device 27, and means allowing the passage of one of the output signals that occurs earlier than the other output signal to the device 27 and preventing said other output signal until the order of occurrence of the output signals is reversed, see Fig. 3 (not shown). This latter means comprises a second bi-stable device 24 which receives trigger signals over line 33 as well as the output signals from comparators 21, 22, via OR gate 23.
Patent GB-1143124-A (GB)
Title: Telephone station apparatus
IPC: H04M1/276
Filed: 1966-10-21
Abstract: 1,143,124. Positive clutches. DASA CORP. 21 Oct., 1966 [22 Oct., 1965], No. 47111/66[ Heading F2C. [Also in Divisions G5 and H4 In a unidirectional clutch which slips a fraction of a revolution before engaging a spring biased pawl 288 pivoted at 290 upon a driving plate 278 and having a foot engaging a split ring 286 encircling the driving shaft, snaps over as the driving plate begins to rotate into a position where its pin 292 engages the outer rim of a channel 284 cut in the face of the driven plate 270. Thereafter the split ring 286 rotates and as the pin 292 follows the downward outer rim the pawl snaps back to the inner rim where upon engaging the next shoulder 291 drives the plate 270.
Patent GB-1376009-A (GB)
Title: Electrophotographic photosensitive plate and process
IPC: G03G5/043
Filed: 1972-10-17
Abstract: 1376009 Electro-photographic devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Oct 1972 [18 Oct 1971] 47715/72 Heading G2C An electro-photographic device comprises a conductive substrate 1, a layer 2, 0À05 to 3 microns thick of a Se-Te alloy containing 60 to 99 wt per cent Se and a layer 3 comprising polyvinyl carbazole or an electron-donating derivative thereof which is substantially non-photo-conductive in the visible spectral region. Suitable derivatives are those having as substituent halogen, nitro, alkyl, aryl, alkaryl, amino or alkylamino groups. The polyvinyl carbazole is applied as a solution to layer 2 and may contain a plasticizer, e.g. chlorinated diphenyl, epoxy resin, dioctyl phthalate, tricresyl phosphate xyrenic resin and isocyanate. and a binder, e.g. polycarbonate and cyanoethyl cellulose. The substrate may be paper, polyester or cellulose acetate coated with aluminium or copper iodide, or paper coated with conducting resin or it may be a plate, cylinder or drum.
Patent GB-987168-A (GB)
Title: A method of mounting metal sheets
Inventor: ARMSTRONG EDWARD
IPC: F16B5/02
Filed: 1963-12-03
Abstract: 987,168. Bolting. CONCH INTERNATIONAL METHANE Ltd. Dec. 3, 1963, No. 47748/63. Heading F2H. [Also in Division B3] A method of mounting a metal sheet 8 on a supporting structure 5 comprises fixing a nut 3 to the structure 5, attaching the sheet loosely by a bolt 9 passing through a clearance hole 7 in the sheet so that lateral movement of the sheet is not prevented, fastening the edges of the sheet to one or more adjacent members, tightening the bolt to prevent lateral shifting of the sheet, and then sealing the hole 7 in the sheet. The nut 3 is first welded at 4 to a copper-lined plate 2 which is fixed by screws to the wooden structure 5. When the bolts 9 are tightened, they form, with their flanged heads, depressions 23 in the sheets above recesses 12 in the plates 2. Reference is also made to the use of a shoulder or lip (not shown) in addition to the bolt flange 10. The periphery of the bolt flange 10 is then welded, brazed or soldered at 13 to the sheet, sealing the bolt-hole 7, the welding equipment being centred in a depression 14 in the bolt head. In a modification, Fig. 5, a washer 16 is used beneath the bolt-head and the bolt-hole is sealed by a cap 17 formed with flats, Fig. 4 (not shown), matching those on the bolt-head, and with a flange welded at 20 to the sheet. In a further form, Fig. 7, the nut 3 is welded to a steel plate 29 and a stainless-steel reinforcing plate 24 is welded to the stainless steel sheet 8. A washer 16 is placed beneath the bolt-head, which is surrounded by a collar welded to the plate 24. The bolt-hole is sealed by a plug 31 welded to the end of the collar and having a locking projection 28 bearing against a flat on the bolt-head.
Patent GB-1155007-A (GB)
Title: Improvements in and relating to devices for correcting pitch errors in a feed screw
Inventor: MOCHE EDWIN
IPC: F16H25/20
Filed: 1966-10-25
Abstract: 1,155,007. Screw-and-nut mechanism. FEINMESS DRESDEN VEB. 25 Oct., 1966, No. 47795/66. Heading F2Q. A device for correcting pitch errors occurring at short intervals in a feed screw 1 comprises a cam 10, corresponding to the error pattern, connected to the feed screw 1 and engaged by a roller follower 9 on a spring-pressed arm 8 which is connected through a shaft 7, pinion 6 and toothed segment 5 to a correction screw 3 against which the feed screw 1 is pressed by a spring 2. On rotation of the feed screw 1 it is also moved axially in accordance with the axial movement of the correction screw 3 effected by the cam 10. Compensation for errors occurring at long intervals is effected by rotation of the correction screw 3 by other means, not shown.
Patent GB-1445476-A (GB)
Title: Solid capacitor with electrolyte of organic semiconductor and polymer
IPC: H01B1/20
Filed: 1974-11-07
Abstract: 1445476 Electrolytic capacitors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 7 Nov 1974 [7 Nov 1973] 48187/74 Heading H1M The solid electrolyte in an electrolytic capacitor comprises a 7, 7, 8, 8,-TCNQ simple or complex salt dispersed in polyvinyl butyral constituting 2 to 30% by weight of the electrolytic composition. Preferably the extent of butyration is 60 to 80% and degree of polymerisation 200 to 2000.
Patent GB-1139519-A (GB)
Title: Hydroxypropyl methyl cellulose ethers and a process for preparing the same
Inventor: RODGERS SAMUEL MATTHEW
IPC: C08L1/28
Filed: 1966-10-28
Abstract: 1,139,519. Cellulose ethers; alkali cellulose. DOW CHEMICAL CO. 28 Oct., 1966 [1 Nov., 1965], No. 48510/66. Headings C3A and C3F. A novel hydroxypropyl methyl cellulose having a methoxy D.S. of 0À4-1À3, a hydroxypropoxyl D.S. of 0À2-1À4 and an average total D.S. of at least 1.0 is made by etherifying, in the presence of a non-reactive reaction control agent, with the appropriate proportions of methyl chloride and propylene oxide, an alkali cellulose which has been obtained by reacting cellulose with less than the stoichiometric equivalent of alkali. The reaction control agent serves to prevent temperature rise during etherification, and is suitably a non-solvent such as dimethyl ether, or ethyl chloride, which boils at the etherification temperature, which is suitably 35-60 C. External cooling may also be applied. Alkali cellulose containing 1À2-2À8 mole of base/mole of cellulose is made by contacting cellulose with 0À3-0À7 parts of NaOH by wt./ part of cellulose. Compositions for painting comprise cellulose ether as identified above, together with water, TiO 2 , Mica, CaCO 3 , clay, polypropylene glycol, an acrylic latex, a defoamer and a preservative.
Patent GB-1444856-A (GB)
Title: Non-peel solderable type polymer coated product prepared by  electrodeposition
IPC: H01B3/44
Filed: 1974-11-08
Abstract: 1444856 Resin electrodeposition MITSUBISHI DENKI KK 8 Nov 1974 [10 Nov 1973] 48557/74 Heading B2E [Also in Divisions C3 and C7] A coating resistant to peeling when soldering the substrate is electrodeposited from a waterdispersion varnish prepared by emulsion copolymerising a methacrylic ester, acrylonitrile, methacrylic acid and one or both of vinyl acetate and an acrylamide. The ester may be a C 1-8  alkyl ester and the acrylamide N-substituted with butyloxyethyl, butoxymethyl, ethoxymethyl or propoxymethyl. Specified proportions are; ester 35-65%, AN 10-40%, acid 2-15% and amide and/or VA 3-30%, with a polymer MW of 10000-500000. Conventional polymerisation is used. The substrate may be a Cu wire.
Patent GB-1486636-A (GB)
Title: Welding apparatus
IPC: B23K33/00
Filed: 1974-11-12
Abstract: 1486636 Automatic control of welding CATERPILLAR TRACTOR CO 12 Nov 1974  [15 Nov 1973] 48930/74 Heading G3N [Also in Division B3] A travelling, consumable electrode, arc welding torch 10 is automatically steered along a workpiece weld preparation groove 12 and metal deposition is rendered responsive to groove width by means comprising mechanical sensing members 54, 53 which are mounted for travelling movement with the torch and adapted to engage respectively the groove 12 and the workpiece upper surface adjacent the groove. The groove engaging sensing members 54, 53 are pivoted at 34 on a bracket 26 bolted to a housing 22 coaxially journaled on the torch 10. The housing 22 is geared to a sine-cosine potentiometer 44 to provide for X, Y steering. The sensing member 53 acts on a rectilinear potentiometer transducer 62 to provide for Z steering and the sensing members 53, 54 act co-operatively on a rectilinear potentiometer transducer 64 to provide for variation of deposition in response to variation of groove width. In operation, in accordance with Fig. 3 (i) manual setting is effected in respect of desired constant wire speed rate at 71, desired deposition level at the input to the transducer 64, and desired torch/workpiece distance at a Z summing junction 100, (ii) the torch is positioned above the groove 12 and, by energization of a clutch 46 and a motor 48, the housing is rotated to position the sensing member 54 ahead of the torch, (iii) the torch lowers to the desired torch/workpiece distance due to error existing at the transducer 62, (iv) during welding, on change in direction of the groove 12 the sensing member 54 rotates the housing 22 and hence the potentiometer 44 to provide, via amplifiers 90, 92, desired X, Y velocity signals to X, Y torch drive 74, 72, actual X, Y velocities being fed back via transducers 94, 96 and signal conditioners 82, 84 being provided to compensate for the distance between the sensing member and the torch, (v) the sensing member 53 provides, via the transducer 62 and a signal conditioner 98, an actual Z signal which is compared at 100 with the desired Z signal, the resultant output signal being supplied to a torch Z drive 76, and (vi) on increase/decrease of groove width, signals from the transducer 64 act through the potentiometer 44 to simultaneously change the X, Y velocity signals to cause the torch to travel slower/faster so as to provide constant deposition height. In Fig. 4 (not shown), torch travel remains constant and the transducer 64 acts on a wire speed drive 71.  The sensing member 54 is coned at 60 degrees included angle, and in the direction of torch travel is angled at a trailing inclination of 30 degrees to the vertical. In the transverse direction the sensing member is optimally angled at 17 degrees to the vertical for J weld preparations, e.g. as shown in Fig. 3, or is disposed in a vertical plane for V or U weld preparations. The sensing members 53, 54 are of tungsten carbide coated with titanium nitride.
Patent GB-950923-A (GB)
Title: Tractor driven apparatus, for mowing, hoeing, ploughing or the like in plantations
IPC: A01B39/16
Filed: 1962-12-31
Abstract: 950,923. Agricultural implements. A. FLECK, R. HABISTEUTHER, and H. HALLER, [trading as MASCHINENFABRIK BIRMATINGEN O.H.G. FLECK, HABISTEUTHER and HALLER]. Dec. 31, 1962 [Jan. 17, 1962; Dec. 5, 1962], No. 48990/62. Heading A1B. Tractor-driven apparatus particularly for cultivating vineyards and having at least one implement adapted to be hinged inwardly when it strikes an obstacle comprises a feeler lever 7 which pivots when striking the obstacle to close a clutch 8 between a tractor drive and a reeling shaft thereby winding up a cable 10 to pivot inwardly the arm supporting the implement, the arm also supporting clutch 8, lever 7 and the reeling shaft and comprising parallel links 56, 57. The feeler lever 7 operates the clutch through a bell-crank lever 74, 74a and after clearing the obstacle, is returned to its normal position by spring 33. The links 56, 57 pivot about points 54, 55 until bar 60 carried by the links strikes a stop 75 on the chassis 1 of the apparatus, the links returning to their normal outward position under the action of spring 66. The pulley of the clutch is driven by transmission gearing 86 and bevel gear 87 from the tractor power take-off shaft. As shown the cultivating implements are draw-hoes or plough shares 62-65 but rotary cultivating, or hoeing or mowing implements may be used in which case drive is taken from bevel gear 87. In a modification the feeler lever is mounted on the front part of the chassis 1.
Patent GB-1292157-A (GB)
Title: Float tanks
Inventor: BRICHARD EDGARD
IPC: C03B5/43
Filed: 1969-10-08
Abstract: 1292157 Float glass containers GLAVERBEL 8 Oct 1969 49436/69 Heading C1M. [Also in Division F4] A float tank for use in the treatment of glass 31 on a bath of molten material 30, usually tin or silver, is formed either completely or partially of refractory blocks having coatings of a different refractory substance on their inwardly facing surfaces. As shown, the blocks 24, 25 are made of refractory ceramic material coated on their inwardly facing surfaces 28, 29 with a layer 26, 27 containing at least 50% carbon in the form of grains enclosed in a tarry binding agent. The coating can also be of silicon carbide, boron nitride or tungsten and can also cover the sides and base of the blocks. The coating also prevents sticking of the glass to the walls of the tank.
Patent GB-1215311-A (GB)
Title: Improvements in and relating to gas and liquid analysers
Inventor: SHIELDS JOHN
IPC: G01N21/31
Filed: 1967-11-01
Abstract: 1,215,311. Photo-electric gas and liquid analysers. SIR HOWARD GRUBB PARSONS & CO. Ltd. Oct. 16, 1968 [Nov. 1, 1967], No.49587/67. Heading G1A. In a gas or liquid analyzer, radiation from a broad-band source is passed through the sample and the emergent beam is switched on to two alternate beam paths by a chopper comprising a rotating member having reflective and transmitting halves, the two alternate beams then being passed to a wavelength selection arrangement which selects, for one beam, radiation of a wavelength band strongly absorbed by the constituent to be be detected in the sample, and for the other beam, radiation in a band weakly absorbed by the constituent, and finally being detected photo-electrically. Fig. 1 shows an arrangement in which the wavelength selection arrangement is a diffraction grating 12 upon which the alternate beams arrive at different angles, thereby determining the wavelengths selected for detection at slit 14 by detector 16. A quartz-iodine lamp 1 provides the source, and a rotary chopper splits up the beam arriving from the sample chamber 2 and condenser systems 3, 4. The chopper may be a single semi-circular rotating mirror, Fig. 2 (not shown) a disc having a halfannular mirror and slot Fig. 3 (not shown), or a disc having a number of mirrors on one half and slots on the other spaced round the circumference, Fig.4 (not shown). In another embodiment, Fig. 5 (not shown) the wavelength selection arrangement comprises two filters, one passing the wavelengths in the first beam, which are strongly absorbed by the constituent to be detected, and the other passing wavelengths, in the second beam, which are weakly absorbed. As a further alternative arrangement, a dispersing prism may replace the diffraction grating of Fig. 1.
Patent GB-1008953-A (GB)
Title: Polishing and other conditioning machines for the lanes of bowling alleys
IPC: A47L11/12
Filed: 1963-12-17
Abstract: 1,008,953. Floor polishing machines. BRUNSWICK CORPORATION. Dec. 17, 1963 [Dec. 18, 1962 (2)], No. 49721/63. Heading A4F. A machine for cleaning the lane of a bowling alley comprises a wheeled chassis 54 on which is mounted an electric motor (not shown) for driving it along the lane to be polished, and a trough 191 for polishing liquid within which is a pick up roller 205 from which liquid is received by a rotary metering brush having bristles 210a, 210b, 210c, so arranged that differing amounts of liquid are collected along the length of the brush and passed by a transfer roller 215 to a polishing roller 165. An electric control system for the operation of the machine is described.
Patent GB-1332688-A (GB)
Title: Original picture frame delivery device in a projector
IPC: G03B23/08
Filed: 1970-10-20
Abstract: 1332688 Film strip projectors MINOLTA CAMERA K K 20 Oct 1970 [20 Oct 1969 (2) 7 Nov 1969 15 Nov 1969] 49799/70 Heading G2A A projector for use with film mounted in a linear holder and bearing a double row of pictures has a frame indexing device comprising a pedestal 2 in which a frame 3 receiving the film holder is slidable in direction a' by successive engagement of pins 13 1 , 13 2  on a uni-directional rotating wheel 12 with indexing teeth 5 2  on frame 3, the pedestal 2 being laterally aisplaceable when one row of pictures has been projected whereby pins 13 1 , 13 2  engage teeth on the opposite side of frame 3 for indexing of the second row of pictures. The lateral shift is provided when pins 14 1 , 14 2  on wheel 12 engage projection 61 of pedestal 2. Spring roller 44a and teeth 47 provide a detent for each projection position of frame 3. Drive to wheel 12 is controlled by a solenoid which releases a detent on the wheel and clutches a motor to a gear on the wheel.
Patent GB-1412426-A (GB)
Title: Adhesive binding means
IPC: B42D1/10
Filed: 1972-11-01
Abstract: 1412426 Adhesive tapes XEROX CORP 1 Nov 1972 [1 Nov 1971] 50335/72 Heading B2E [Also in Division B6]  A binding member for books etc. comprises a flexible substrate 12 having a centrally disposed elongate area of heat activatable, low tack adhesive 13 of a width narrower than the width of the substrate and of a thickness greater than that of elongated flanking portions 18 of high tack adhesive 21 carried by the substrate on either side of said area. The adhesive 21 may be heat activatable and is more viscous, when heated, than the adhesive 13, or it may be pressure sensitive in which case it is covered by protective strips until used. The adhesive 13 may be applied as a stripe 14 or as spaced segments (26), Fig 6 (not shown) and tacked at 17 onto the substrate previously uniformly coated with adhesive 21. A book to be bound is placed upon the binding member aligned with the elongate area. The flanking portions are bent round to engage the outer pages or the covers of the book or the binding member may be extended so as to form the covers. Heat is then applied to activate the adhesive 13 which flows and binds the book, the adhesive 21 also being activated to adhere the member to the outer pages or covers of the book.
Patent GB-1331966-A (GB)
Title: Processes for the production of starch syrups
IPC: A23L1/09
Filed: 1970-10-23
Abstract: 1331966 Starch syrups HAYASHIBARA CO 23 Oct 1970 [24 Oct 1969] 50500/70 Heading C3U Starch syrup of low viscosity, high chemical stability and heat retention is obtained by adding to common starch syrup (1) a starch syrup consisting of linear chained oligosaccharide molecules which are obtained by subjecting liquefied starch slurry to the action of α-1,6- glucosidase during acidic or enzymatic (α- and #-amylases) saccharification or (2) a starch syrup consisting of linear chained sugar alcohols which are obtained by hydrogenating the starch syrup (1) under elevated pressure using a Raneynickel catalyst. The starch syrup mixture of common starch syrup and starch syrup (1) may be hydrogenated to obtain non-reducing starch syrups consisting of linear chained molecules. The initial liquefication is achieved by heating the starch in suspension at from 130‹ to 160‹ C., by heating at from 60‹ to 95‹ C. with the addition of α-amylase or by heating with the addition of acid. The starch syrup (1) or (2) typically amounts to between 30 and 50% by weight of the mixture.