baber/WOPTO huggingface dataset:
Patent GB-448882-A (GB)
Title: Improvements in or relating to explosives
IPC: C06B43/00
Filed: 1934-12-20
Abstract: 448,882. Explosives. AKTIEBOLAGET SWEDISH INVENTION CORPORATION, 7B, Strandvagen, Stockholm. Dec. 20, 1934, No. 36599. Convention date, Dec. 21, 1933. [Class 9 (ii)] Explosives are prepared by causing active carbon to adsorb oxygen yielding substances (except liquid oxygen) or explosive substances or both. Active carbon is a carbonized product such as charcoal which has been subjected to a treatment with hot air, superheated steam, acids and other chemicals for the purpose of removing tar-like products and hydrocarbons from the pores. Conveniently, the carbon is heated, say to 200-300‹ C., under reduced atmospheric pressure and the adsorption performed after the carbon has cooled down but while the reduced pressure is maintained. The product which is in powder or granular form is then washed and dried at about 50-60‹ C. The adsorbed substances may be liquid or dissolved solids, for example perchloric acid, perchlorates, chlorates, nitrates, nitroglycerine, and tetranitromethane. The product may be plasticized and made moisturestable by means of resin, collodion, or paraffin in known manner. The explosion temperature may be reduced by the addition of urea or urea compounds. These explosives are insensitive towards friction, and may be added to other explosives to exert a phlegmatizing action.
Patent GB-1509160-A (GB)
Title: Bonding pad for semiconductor device
IPC: H01L29/423
Filed: 1976-09-03
Abstract: 1509160 Bonding pads HITACHI Ltd 3 Sept 1976 [3 Sept 1975 13 Aug 1976] 36641/76 Heading H1K A bonding pad for a semiconductor device, e.g. a high frequency FET or a gunn oscillator, comprises a first metal layer 6 bonded to a semiinsulating substrate 1, and a second metal layer 8 overlapping at least a portion of the first metal layer, the second metal layer being a terminal portion of a conductor layer connecting the first metal layer with a finely patterned electrode 7 for an active region of the device. In the FET of Fig. 1 the semi-insulating substrate 1 of GaAs provided with an n-type epitaxial mesa 2 of GaAs, is heat-treated after the deposition of the first metal layer 6 of AuGe and simultaneous deposition of AuGe source and drain electrodes 4, 5. Using a photo-resist film as a mask a Schottky gate electrode 7-typically of aluminium, having relatively small width, e.g. 1 micron, is vapour deposited. In the embodiment of Fig. 4 (not shown) the second metal layer entirely covers the upper surface of the first metal layer, whereas in the FET of Fig. 6 (not shown) the second metal layer is beneath a portion of the first metal layer. The edge of the first metal layer underneath the second layer may be crenellated, Fig. 8 (not shown). Various alloys in the form of single or composite layers used for the first and the second metal layers are disclosed.
Patent GB-1507136-A (GB)
Title: Jointing of structural members
IPC: F16B7/22
Filed: 1976-09-03
Abstract: 1507136 Roof structures; structural bars GAY HOLDINGS PTY Ltd QUEENSLAND ASSOCIATED INDUSTRIES PTY Ltd and L D GOLEBY 3 Sept 1976 36709/76 Headings E1K and E1W [Also in -Division F2] Bridging pieces 11 are secured to purlins 10 in a building frame by a jointing arrangement comprising a pair of hooks 19 formed on a bracket 15 on one end of each bridging piece engageable by swinging of the bridging piece with corresponding slots 13 in the purlin and simultaneously engageable with corresponding slots 17 in a flange 16 of a bracket 14 on the opposite end of an adjacent bridging piece, each hook having a pressed-out portion 22 shaped as a cam and of gradually increasing depth in a direction outwardly from the longitudinal axis of the bridging piece, so that as the bridging piece is swung to fully engage the hooks, the portions 22 grip the opposite edges of the two slots in both the purlin and the flange 16 of the next bridging piece, to ensure a tight joint.
Patent GB-454311-A (GB)
Title: Improvements in the manufacture of cycle, motor cycle or like frames
IPC: B22D19/04
Filed: 1934-12-21
Abstract: 454,311. Making cycle and like frames. PARMENTIER, P. R. DE, 17, Place Xavier Neujean, LiÚge, and WILDE, P. H. DE, 15, Boulevard Militaire, Ghent, both in Belgium. Dec. 21, 1934, Nos. 36725 and 36726. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 22, 1935]. [Classes 83 (i) and 83 (ii)] Casting joints.-Cycle, motor-cycle, and like frames have any or all of their joints made by casting aluminium, zinc, magnesium, or other metal or alloy, except malleable iron, about the tube ends while in metal moulds. The moulds 15, Fig. 1, may be arranged on a frame carrying clamps 16 for the tubes which may be of aluminium alloy. The upper mould halves 15<1> may be carried by a pivoted or sliding head, operated by hydraulic piston 23, Fig. 5, or otherwise and the metal may be injected by a hydraulically operated plunger 18. A connecting member 8, Fig. 2D, may be cast onto both tubes 7, 9 to be joined or cast onto one, i.e. 7, Fig. 2, and brazed onto the other, i.e. 9. If the tube end is to be completely enclosed in the molten metal the opening is closed by a stopper 13, Fig. 2. The tube ends may have anchorages 31, Fig. 8, brazed on or formed by a die or punch.
Patent GB-619480-A (GB)
Title: Improvements in heating stoves
IPC: F24B13/00
Filed: 1946-12-12
Abstract: 619,480. Stoves. LONDON WARMING CO., Ltd., and FLORENCE, C. P. Dec. 12, 1946, No. 36740. [Class 126] A solid-fuel stove with closable doors having mica inserts is provided with panels movable on a vertical axis to cover spaces at the side of the stove which are adapted to accommodate the doors of the stove in open position, the panels when closed presenting a substantially uniform appearance with the rest of the stove. As shown vertically pivoted doors 6 are covered when in open position at the sides of the fireplace by hinged panels 8 which are provided with flanges 9 adapted to close the pivoted edges of the doors. A firedoor horizontally pivoted above a fireplace may be covered when in open position above the fireplace by a single panel hinged at one side (not shown).
Patent GB-449535-A (GB)
Title: A machine for plucking hops
IPC: A01D46/02
Filed: 1934-12-22
Abstract: 449,535. Plucking hops. HINDS, G. A., 11, The Lees, Malvern, and McCONNEL, F. W., Barbers, Martley, both in Worcestershire. Dec. 22, 1934, Nos. 36853 /34 and 17027 /35. [Class 6 (iii)] Hops are plucked from hop bines hung on hooks 12, that are carried across a plucking chamber by a. conveyer, by comb-like members h moved downwards past the hanging bines by endless conveyer chains. The notches in the members h forming the combs are so narrow that only the thin stems in the immediate neighbourhood of the flowers can be engaged by them. The hooks 12 are provided with rollers 10 engaging a guide bar 11, the rollers and thus the hooks being caused to rotate by this engagement as the hooks traverse the chamber : the rollers and hooks are hung by rods 9 from an endless chain conveyer 4. The guide rail 11 is moved backwards and forwards as the bines are carried through the chamber by a lever 14 rocked in the one direction by the engagement of a cam 18 with a stop 17 on a lever 15 to which it is connected by a link 19 and in the other by a counterweight 20. The comb-like members h are carried bv brackets on sleeves x on rods extending between the vertical endless chains t. Auxiliary plucking members k project forwardly from the members h being carried on brackets l projecting from bearers y. An air current from a fan r is directed across the chamber, louvres q controlling the current being actuated in synchronism with the swinging of the bines.
Patent GB-333129-A (GB)
Title: Improvements in travelling trunks
IPC: A45C13/36
Filed: 1929-12-02
Abstract: 333,129. Morszeck, R. Dec. 2, 1929. Corner strengthening pieces; straps &c., strengthening; lids and covers.-A trunk consists of separate body and cover portions 1, 2 pressed into shape from vulcanized fibre, leather, or similar material, each portion being formed with recessed corners 7, 8, Fig. 2, into which separate corner-pieces 3, 4 of the same material are pressed so as to be flush with the surfaces of the portions, the cornerpieces being secured in place by means of waterproof cement. The body portion has a metal edging 9 to which is attached a frame 10 which projects above the edge of the cover.
Patent GB-859002-A (GB)
Title: Improvements in or relating to phase modulators for carrier communication systems
Inventor: KING HOWARD GURNOS
IPC: H03C3/08
Filed: 1959-10-30
Abstract: 859,002. Phase and frequency modulation. STANDARD TELEPHONE & CABLES Ltd. Oct. 30, 1959, No. 36891/59. Class 40(5). Two phase modulators 8, 3 are connected in cascade and equally phase modulated by voltages of opposite phase from a source 6, and a frequency changer 4 is interposed between the modulators to invert the frequency band of the signal from the first phase modulated so that the sense of its phase modualtion is reversed. By this arrangement any second harmonic distortion due to the modulators is suppressed. As shown, the modulators may be delay lines 8, 3 with back biased P-N shunt diodes 10, 11 forming variable capacitances acted on by the modulation to vary the output phase shift. The phase shifted carrier, of frequency f 1 , from the first modulator and the higher frequency f 2  of the local oscillator 5 are applied to tuned circuits 27, 28 connected in series with the grid of frequency changes tube 16, and the difference frequency (f 2 -f 1 ) derived from an output tuned circuit 29. The modulating voltages are derived from and adjusted in amplitude by a phase splitting potentiometer 37 with tapping connected to a positive back bias source 39, 40. Preferably the delay lines 3, 8 have the same number of sections and same phase per section and the same shunt capacities, the series inductors being different. In a modification the series inductors are of variable permeability and modulated instead.
Patent GB-1059279-A (GB)
Title: Heat-curable polyester compositions
IPC: C08G63/87
Filed: 1964-09-09
Abstract: A heat-curable polyester composition comprises (1) a polyester resin composed of the residues of terephthalic and/or isophthalic acid, ethylene glycol and a saturated aliphatic polyhydric alcohol having at least three hydroxyl groups, (2) an organic polycarboxylic anhydride and (3) a certain tertiary amine.  The latter is quinoline, an amine of formula R3N where R is a monovalent hydrocarbon radical (e.g. alkyl, aryl, aralkyl, alkenyl, cycloalkyl or cycloalkenyl), or a compound capable of generating such an amine on heating (e.g. a hydrochloride or acetate thereof or a quaternary ammonium hydroxide or methoxide derived from the amine).  The polyester is preferably derived from the dialkyl ester of terephthalic and/or isophthalic acid and the polyhydric alcohol may be glycerine, 1:1:1-trimethylol ethane, 1:1:1-trimethylol propane, pentaerythritol, sorbitol, mannitol, diglycerol or dipentaerylthritol. The polycarboxylic anhydride is preferably one of formula <FORM:1059279/C3/1> where R1 is a tetravalent radical containing at least two carbon atoms.  Many examples of suitable anhydrides are given. The polyesters may be mixed with fillers (e.g. wood flour, diatomaceous earth, carbon or silica) or other resins (e.g. epoxides, urea-, melamine- or aniline - formaldehyde, silicones, polyamides, polyethylene, polystyrene, cellulose acetate or butadiene-styrene resins) or dissolved in solvents (e.g. methylnaphthalene, cresol, N-methyl-2-pyroolidone, dimethyl acetamide or a mixture of diphenyl and diphenyl oxide). Uses.-Coating by wet and dry techniques, moulding, casting into films.ALSO:Electrical components (e.g. stators or motors, copper or aluminium wire), are insulated by heating the component to 150 DEG to 250 DEG C., dipping the component into a fluidised bed of a certain heat-curable polyester powder and thereafter heating it to 150 DEG C. to 350 DEG C. to cause the discrete particles of the powder to coalesce.  The polyester powder comprises (a) a branched polyester based on terephthalic and/or isophthalic acid (b) a polycarboxylic anhydride and (c) a tertiary amine.  Powder spraying techniques, e.g. flame or electrostatic, or solutions of the powder may be used.  Woven or random glass cloth may also be treated.  The polyester resins may be mixed and cured with minor amounts of other resins such as melamine-, aniline-, shenolurea formaldehyde resins, epoxide, silicone, polyamide, vinyl, ethylene, styrene, butadiene-styrene resins, cellulose acetate.
Patent GB-1031106-A (GB)
Title: Lubricants
Inventor: PETROVICKI HERBERT
IPC: C10M111/04
Filed: 1964-09-10
Abstract: A lubricant comprises a low-congealing natural hydrocarbon oil, a synthetic hydrocarbon oil having a molecular weight below 8000 Staudinger and at least 10% synthetic ester oil formed from C6\s4 diols and monocarboxylic acids or from C6\s4mono-alcohols and C19 dicarboxylic acids.  The synthetic hydrocarbon oil may be a polyethylene.  The ester specified is that formed from nonadecylene glycol with 2 mols. of 2-ethyl caproic acid.  The lubricant may also contain polyacrylates.
Patent GB-1281742-A (GB)
Title: Method of and apparatus for constructing stitchless end closures on fibreboard drums
Inventor: ULPH SIDNEY JOHN
IPC: B31B17/00
Filed: 1969-07-23
Abstract: 1281742 End closures for drums BOWATER PACKAGING Ltd 7 July 1970 [23 July 1969] 37118/69 Heading B8D [Also in Division B5] The end margin of a fibreboard drum 1 is folded inwardly to form a flange which is adhered to an end closure disc 5, the flange being formed with a plurality of regularly circumferentially spaced creases such that adhesion between the flange and end disc occurs over at least 90% of their interface. An outer disc 11 and an inner disc 12 may be adhesively secured to the outer surfaces of the flange and disc 5 and to the inner surface of disc 5 respectively. In a modification, an outer sleeve may be attached to the end of the drum, this being folded inwardly to form the flange.
Patent GB-366205-A (GB)
Title: Improvements in or relating to shock absorbing devices for aircraft, or other purposes
IPC: B64C25/60
Filed: 1930-12-10
Abstract: 366,205. Shock-absorbers. LANE, J. K. and RED WING AIRCRAFT CO., Ltd., (formerly ROBINSON AIRCRAFT CO., Ltd.), Stafford Road, Wallington, Surrey. Dec. 10, 1930, No. 37282. [Class 108 (iii).] An aircraft, vehicle, or like shock-absorber comprises rubber or like resilient means 4 compressed between flanges 3<1>, 3<2> on telescoping tubes 1, 2 and a double-acting oil dashpot formed by the tubes and working under a head of oil providing a reserve for oil losses, the inner tube 1 passing into the outer tube 2 through a single oiltight gland 5 and being guided therein by a packing-ring 6, and the dashpot comprising holes 8a, 8b formed on the tube 1 on either side of a ring-piston 7 secured to the tube. A filling-hole 9 and overflow plug 10 are provided and oil is introduced until it fills the tubes to the working level of the plug 10, any additional oil constituting a reserve'supply.
Patent GB-824266-A (GB)
Title: A method of, and apparatus for, the titration of solutions and the like purposes
IPC: G01N31/16
Filed: 1955-12-29
Abstract: <PICT:0824266/III/1> A titration process is controlled by applying to a pair of electrodes immersed in the solution to be titrated a potential of the order of 3 volts.  The Specification states that a jump in the polarizing potentials of the electrodes occurs at the titration end point.  The potential applied to the electrodes is greater than the highest value of the potential difference occurring between them and is applied through a large resistor to limit the current to a low value.  As shown (Fig. 1) platinum electrodes 4, 5 are immersed in the solution under test.  A power transformer and full-wave rectifier supply through an LC filter, a voltage of about 300 which is applied to a stabilizer circuit consisting of resistor R1 and glow tube 2.  Across the tube is connected a potential divider consisting of resistor R2 and potentiometer P1. The positive terminal of the potentiometer is connected to platinum electrode 4 through resistor R6 of from 0.1 to 1 Megs. while the potentiometer slider is connected to the grid of the left-hand triode of a cathode-coupled pair the other grid of which is connected to electrode 4.  Electrode 5 is earthed.  The anodes of the double triode are coupled together through meter 7 and to the high-potential supply through balancing potentiometer P2.  In operation, the titrating vessel is partially filled with a solution under test and a magnetic or mechanical stirrer in it operated.  The electrodes 4, 5 are then immersed in the solution and the lowest sensitivity of voltmeter 7 chosen.  The voltmeter reading is then brought to zero by adjustment of the potentiometer P2 and the sensitivity adjusted according to the accuracy desired.  A curve is then plotted relating the deviations of the voltmeter needle to the volume of the titrating solution added. Alternately the potentiometer is adjusted after each addition of a given quantity of titrating solution to return the needle to the zero point and the rate of deflection of the needle divided by the added volume is plotted against volume.  An arrangement is described with reference to Fig. 2 (not shown) in which the potential developed across voltmeter 7 is applied between the grid and the cathode of a pentode having in the anode circuit an electromagnetic relay.  The arrangement is such that when the voltmeter goes to zero the relay closes the secondary circuit to stop the titrating burette or the input of electrolysis current.  Alternatively the two anodes may be coupled respectively to the grids of a cathode-coupled pair of pentodes with a relay in the anode circuit of one.  The multiple sensitivity voltmeter may be replaced by a recording apparatus marking a strip the movement of which is controlled by the consumption of titrating solution.  The Specification also indicates the possibility of using magic eye and neon lamp indicators.
Patent GB-910921-A (GB)
Title: Improvements connected with solutions for surgical cleaning
Inventor: PRANGE CHARLES HENRY
IPC: A61L2/00
Filed: 1960-02-09
Abstract: A solution suitable for rendering an object surgically clean p comprises an aqueous solution of a germicide e.g. hexachlorophene, phenol and cresol and their derivatives and a surfactant cleansing agent e.g. a soap or detergent, the solution being vibrated at a frequency in the range of 10 to 200 and preferably 15 to 50 kilocycles per second while contained in a vessel designed to permit immersion in the solution of the object to be cleaned.  The solution may be vibrated at a power level of 10 to 300 watts and may contain from 0.01% to 10% preferably 0.1% to 5% by weight of germicide and 1 to 10% and preferably 1-5% by weight of surfactant cleansing agent.
Patent GB-1481148-A (GB)
Title: Copying or duplicating apparatus
IPC: G03B27/62
Filed: 1975-09-11
Abstract: 1481148 Photo-copying apparatus G RITZERFELD 11 Sept 1975 [1 Nov 1974] 37423/75 Heading G2A In electro-photocopying apparatus the original is masked by masking means which is linearly displaceable in steps so as to expose different portions of the original in succession. Fig. 1 shows the general arrangement of the apparatus. The original and masks are disposed in pockets 19 and 20 respectively of a transparent plastics material, and rest on a transparent platen 9. The original is illuminated by lamps 10, and the reflected image reflected again from a movable mirror on to a rotating drum 2 having a selenium layer 1 in the usual manner, the final copy being made on a sheet 15. There are two masks 23, 24 defining a slit 25 between them, so that a section of the original 27 is visible from below through the slit. Pockets 19, 20 are fastened in clamps 21, 22, and the lower packet 20 and clamps 21, which contains the masks, can be displaced stepwise along a shaft 26, so that different sections of the image 27 can be projected on to the selenium layer. If the material on the original is set out in a series of lines, these can be projected one by one as the masks are moved. This movement is effected by a stepping mechanism Fig. 3 (not shown) actuated by energizing an electromagnet 32. The stepping mechanism can be controlled by manually operated keys, or automatically by a time switching device. One of the masks may itself carry an image, which would then appear each time as an unvaried "heading". The lower clamp 21 may be divided so that the two masks are clamped separately, and can be displaced together or separately. Thus the width of the slit between them can be varied, Figs. (not shown) 5 and 6.
Patent GB-1474989-A (GB)
Title: Method for producing fancy effect yarns
IPC: B65H81/06
Filed: 1974-08-27
Abstract: 1474989 Spinning yams D S O TEXTIL 27 Aug 1974 [27 Aug 1973] 37482/74 Headings D1F and D1W A fancy yarn, which may vary in effects e.g. in colour and/or denier/thickness, with or without loops, is formed by a first or core yarn, a second or effect yarn and a third or binding yarn. A method of making the yarn comprises drawing the first and second yarns at different respective speeds together between a pair of rollers the pressure between which can be steplessly regulated (to form the fancy effect) the drawing being effected by a set of rollers; feeding the first and second yarns to a rotating hollow spindle carrying a package of the third yarn which is unwound therefrom; passing the three yarns without twisting through the spindle bore; thence through a false-twist device mounted on the spindle, at the exit end of the bore and upstream of the drawing rollers in order to twist the first and second yarns together and to bind the third yarn thereabout in a zone between the device and the drawing rollers. As shown, core and effect yarns 1 and 4 supplied from bobbins 2 and 5 and tensioned by braking devices 3 and 6, are drawn at different linear speeds through guides 7 and between pressure rollers 8 and 9 (adjustably loaded by a variably compressible spring 12) slipping on yarn 1 but not on 4. Drawing is effected by rollers 13 and 14 which are preceded by rotating hollow spindle 15 which carries, and supplies the third yarn 18 from, a package 16 and, by means of wire loop or coil spring extension twister 19, applies false-twist to form the final yarn which is wound on a bobbin 21 by drum winder 20. The dimensions and shapes of the fancy effect may be varied e.g. by changing the speed of rollers 8, 9, relative speeds of rollers 13, 14, and 8, 9, regulating the tensions in the yarns and/or pressure between rollers. Mechanical drives are derived from a motor through shafts 27, 30 and belt and pulley transmissions shown schematically.
Patent GB-1270788-A (GB)
Title: Improvements in or relating to cold rolling stands
IPC: B21B37/64
Filed: 1970-08-04
Abstract: 1,270,788. Rolling mills. BROWN, BOVERI & CO. Ltd. 4 Aug., 1970 [6 Aug., 1969], No. 37554/70. Heading B3M. Apparatus for controlling the roll gap of a cold rolling stand for rolling strip to a constant gauge comprises a strip thickness gauge at the inlet side of the stand, a differential computer for detecting changes in the gauge measured and producing an appropriate control signal, a delay unit to allow for the time taken for the strip to pass from the thickness gauge to the roll gap, and an evaluating unit for evaluating the control signal and the deformation characteristics of the strip and roll stand, in order to produce a signal for controlling the roll gap. The deformation resistance of the strip may be calculated in one of three ways. It may be calculated in a computer from the rolling force and the resulting difference in the initial and emerging strip gauges. Alternatively, the resistance may be computed from the change in rolling force caused by an incremental change in the roll gap. Finally, the resistance may be computed from both the change in rolling force and change in strip gauge resulting from an incremental change in the roll gap. The apparatus for gauge control may be applied to a prestressed roll stand.