baber/WOPTO huggingface dataset:
Patent GB-1459113-A (GB)
Title: Segmented friction disc
IPC: F16D65/12
Filed: 1974-09-06
Abstract: 1459113 Friction discs for brakes or clutches GOODYEAR TIRE & RUBBER CO 6 Sept 1974 [5 Oct 1973] 39074/74 Headings F2E and F2C Each segment 11 of a friction disc, preferably made of a plurality of resin-impregnated carbon cloth layers, has end recesses 22, and adjacent segments have located between them a plug 21 preferably of the same material; a gap 16 for expansion is left between the edges. The plug has a peripheral full width or narrower rib (Figs. 3 and 4, not shown) engaging complementary grooves in the recesses. Adjacent segments are secured together by clips 12 mainly of inverted U-shape, formed of steel or alloy and riveted to the segments at 14. Keyway recesses 17 for engagement by splines are provided.
Patent GB-939724-A (GB)
Title: Improvements in or relating to radio frequency dielectric heating apparatus
Inventor: GLOVER JOHN JEKEN
IPC: H05B6/50
Filed: 1959-11-18
Abstract: 939,724. Automatic current control systems for radio frequency heating apparatus. RADYNE Ltd. Dec. 1, 1960 [Nov. 18, 1959], No. 39158/59. Class 38 (4). Radio frequency heating apparatus comprises a radio frequency generator of the electronic valve oscillator type the H.T. current supply to which is supplied by way of a resistor 2, the voltage across this resistor energizing a winding 6 of a centre-balance relay A/1 a further winding 7 of which is energized by a standard voltage obtained from a potentiometer 5. When the H.T. current varies outside a predetermined range the windings 6, 7 of the relay A/1 are unbalanced causing the centre contact 9 to move to engage either contact 8 or 10 whereupon a relay system operates to cause one or other of the windings of a motor 11 to be energized so that the motor drives the upper electrode of the heater either towards or away from the burner electrode so that the output of the radio frequency generator is maintained within the predetermined range. The motor 11 is provided with an electromagnetic brake 12. The electrodes are provided with upper and lower limit switches 51, 52 and the control circuit may be described by means of switches S3, S4 and the motor 11 may be controlled manually by means of push buttons 15, 16 and 17, 18.
Patent GB-963228-A (GB)
Title: Improvements in or relating to secondary electric batteries
IPC: H01M50/627
Filed: 1961-11-02
Abstract: 963,228. Batteries. H. FRANKMANN. Nov. 2, 1962 [Nov. 2, 1961], No. 39201/61. Addition to 867,385. Heading H1B. The battery topping- up device of the parent Specification is modified in that passage 16 is now inclined (instead of radial) and the dimensions of the float &c. are chosen so that entering water does not impinge on the float.
Patent GB-854917-A (GB)
Title: Coating compositions
IPC: C09J7/21
Filed: 1956-12-27
Abstract: A back size coating solution comprises (1) a film-former agent having the properties of toughness, flexibility, and good adhesion to the surface to which it is to be applied, (2) a release agent of limited compatibility with the filmformer and which comprises a polymeric material having an alkyl side chain of at least 12 carbon atoms, (3) a solvent for the film-former and (4) a solvent for the release agent which is also a nonsolvent for the p  film-former and of higher boiling point than (3).  The solvents (3) and (4) are miscible with each other.  The film-former may be nitrocellulose, an alkyd resin, a vinyl chloride polymer such as a copolymer of vinyl acetate and vinyl chloride, polystyrene or a copolymer of styrene with a minor proportion of a conjugated diene such as butadiene or isoprene.  The polymeric ingredient of the release agent may be formed in situ in the solution.  Release agents mentioned are polyvinyl stearate, polyvinyl laurate, copolymers of vinyl stearate with vinyl acetate and/or maleic anhydride, copolymers of octadecyl acrylate or methacrylate with acrylic or methacrylic acid, the reaction product of glyceryl monostrearate and toluene diisocyanate, or sorbitan monostearate and toluene diisocyanate, n-pentadecyl resorcinol reacted with tetraisopropyl titanate, or polymers of itaconic acid reacted with cetyl alcohol, or glyceryl monostearate reacted with phthalic anhydride.  Examples of release agents which may be formed in situ are stearato chromic chloride, and the reaction product of sorbitan monostearate and toluene diisocyanate. Suitable solvents for the release agents, with the exception of stearato chromic chloride, are toluene, octane, terpenes, and cyclohexane.  For the stearato chromic chloride, alcohols such as ethanol or cyclohexanol may be used.  Solvents for the filmformers may be aliphatic, cyclic, or aromatic ketones such as mesityl oxide, acetone, methyl ethyl ketone, acetophenone, cyclohexanone, and isophorone, esters such as butyl acetate, ethylene glycol monomethyl ether acetate, ethers such as ethylene glycol monoethyl ether, tetrahydrofuran, dioxane, halogenated hydrocarbons such as ethylene dichloride, or nitroparaffins such as nitromethane.  The solutions are used to provide backsize coatings on adhesive tapes (see Group VIII). Specification 689,667 is referred to.
Patent GB-926689-A (GB)
Title: Cyanethoxy derivatives and their use as plasticisers
IPC: C08L1/08
Filed: 1960-11-17
Abstract: Cellulose esters such as cellulose acetate, cellulose ethers, polyvinyl compounds such as polyvinyl chloride, polyvinyl acetate and polystyrene, chlorinated rubber, alkyd resins, polyesters such as a polycarbonate containing recurring units of the formula:- <FORM:0926689/IV(a)/1> polymers of acrylic acid and functional derivatives thereof, polyethylene, and polypropylene are plasticized in the presence or absence of organic solvents with pentaerythritol derivatives of the formula:- <FORM:0926689/IV(a)/2> in which X and Y each represent a -CH2-O-C2H4.CN radical or together represent a radical of the general formula:- <FORM:0926689/IV(a)/3> in which R1, R2 and R3 may represent independently alkyl, substituted alkyl, aryl or substituted aryl groups, and specified substituents in the alkyl and aryl groups are amino, substituted amino, halogens, nitro, carbethoxy and cyano.  The resulting plasticized compositions may be used in the production of films, foils, lacquers, protective coatings, and other shaped articles.  The above plasticizers may also be used in conjunction with other plasticizers, viz. esters of phosphoric acid (e.g. tricresol phosphate), phthalic acid, adipic acid and sebacic acid.  Examples illustrate the incorporation of these plasticizers in solutions of cellulose acetate in a solvent mixture of isopropanol and methylene chloride.ALSO:The invention comprises compounds of the formula:-  <FORM:0926689/IV(a)/1> in which X and Y each represent a -CH2-O-C2H4.CN radical or together represent a radical of the general formula:- <FORM:0926689/IV(a)/2> in which R1, R2 and R3 may represent independently alkyl, substituted alkyl, aryl or substituted aryl groups, and specified substituents in the alkyl and aryl groups are amino, substituted amino, halogens, nitro, carbethoxy and cyano.  The compound in which X and Y each represent a -CH2-O-C2H4.CN is prepared by reacting an aqueous or organic solution of pentaerythritol with at least 4 moles of acrylonitrile in the presence of a compound having an alkaline reaction.  The compounds having a dioxane structure are prepared by reacting pentaerythritol with two moles of acrylonitrile and further reacting the resulting dicyanethyl ether of pentaerythritol with an appropriate aldehyde or ketone. Alternatively, pentaerythritol may be reacted with an equimolar amount of an appropriate aldehyde or ketone and the resulting intermediates of the formulae:- <FORM:0926689/IV(a)/3> and <FORM:0926689/IV(a)/4> further reacted with two moles of acrylonitrile.  The products are used as plasticizers for organic polymer compositions.  Specification 629,691 is referred to.
Patent GB-1203641-A (GB)
Title: Improvements in or relating to apparatus for pressure diecasting
Inventor: CARR IRVING ARTHUR
IPC: B22D17/12
Filed: 1967-08-31
Abstract: 1,203,641. Casting-machines; extracting castings. I. A. CARR. 31 Aug., 1967 [31 Aug., 1966], No. 39828/67. Heading B3F. A machine for producing pressure diecastings of Fe, brass or Mg or anodizable castings of Al or Al alloys, e.g. with Mg., has a raisable upper mould half 10 in which is secured an upper chamber 16 of a vertical injection cylinder, a lower chamber 18 being secured in a fixed lower mould half 12. An injection piston 30 has a chamber-fitting length L<SP>2</SP> at least as long as the height through which the mould half 10 is lifted after casting. The piston 30 is raised as shown (but not necessarily out of the chamber 16) by a reciprocating device 24, to allow metal 32 to be introduced into the chamber 16, e.g. by ladling, before it is lowered to depress the metal 32 and a valve 20 against a seat 19 (against the bias of a spring 22) so that radial feed passages 5 are opened and metal is forced through them into a mould cavity 7. A pressure detection device 8 may then cause a second (double or treble) pressure, e.g. of 1000 or 1500 p.s.i., to be applied and there may be one piston within another instead of the single piston 30 for this purpose. There may be multiple pressure operation. The injection piston 30 remains down while the mould half 10 is lifted by a means 33. A shaft 21 carrying the valve 20 rests on an ejector plate 27 when the valve is on the seat 19. When the mould half 10 has been raised, a ram 26 raises the valve 20 and ejector pins 28 bearing the casting. Lubricant such as graphite is introduced into the chamber 16 through a nipple 15 and groove 17 after or during the metal injection. The operation of the machine may be automatic and continuous, controlled by limit switches to actuate the reciprocating devices 24, 33 and such a device for the valve 20 if one is employed instead of the spring 22.
Patent GB-1118977-A (GB)
Title: Apparatus for collecting and dividing rod into bundles or coils
IPC: C21D8/06
Filed: 1966-09-07
Abstract: 1,118,977. Coiling rod. MORGAN CONSTRUCTION-CO. 7 Sept., 1966 [29 Sept., 1965], No. 39929/66. Heading B3E. Apparatus for collecting a descending helical formation of rod rings on to individual coils comprises a coil collecting table, a plurality of pins radially movable above the table temporarily to accumulate coils thereon, a support plate movable, at a slower speed than the pins, across the path of the descending coils between the pins and the table. so as to support temporarily coils accumulated on the pins following retraction of the pins, means for shearing any rod strand between the table and the support plate, and means for clearing the completed' coil'.from the table, the next succeeding coil being formed thereon after retraction of the support plate. Rod falling in coil form 54 on to a collecting table 56'is intercepted when a coil 66 of the proper size has been accumulated thereon, firstly by pins 122a moved rapidly into its path by piston and cylinder means 116, 118 and'secondly by an intermediate support plate 100 moved slowly across by a cylinder 106. The pins 122a are then retracted to allow coils temporarily accumulated'thereon to fall on the plate 100. The plate. 100 is retracted when the table 56 has been cleared of the coil previously accumulated thereon. The rod extending from the completed coil 66 on the table 56 is severed by an'arm 132 having a rod-engaging recess 140 and swung to carry rod, moved towards it by the advancement of the plate 100, to a shear 114. Save for the pins 122a and shearing arrangement the apparatus is generally similar to that disclosed in Specification 987,202, to which: reference is made.
Patent GB-1452264-A (GB)
Title: Illuminating head for a gas burning torch
IPC: F21L19/00
Filed: 1972-08-29
Abstract: 1452264 Lighters R R BARRINGTON 2 Nov 1973 [29 Aug 1972 (2)] 39986/72 and 39987/72 Headings F4F and F4T In a cigarette lighter where the burning of gas is controllable to provide a flame suitable for lighting a cigarette or a flame suitable for illuminating purposes, a tank 10 is connected via a conduit 11 to a bunsen-burner type construction with a variable air-inlet aperture and a head 12 of pyrex (Registered Trade Mark) glass fitted with a mantle disc 29 of refractory oxides. The aperture is variable such that the gas burns either outside the head to produce a flame for cigarettes or inside the head such that the disc is raised to incondescent heat. A gauze disc of woven glass is provided adjacent the disc to prevent light back. A parabolic reflector may be provided around the head. The aperture control is in a finger piece 24. A flow of gas is controlled by two pinch corks also with knob control. A shield 36 is provided for the head when used as a cigarette lighter. The conduit is arranged to pass near the head so that the gas is pre-heated.
Patent GB-934306-A (GB)
Title: Tunnel diode logic circuit
IPC: H03K19/10
Filed: 1961-11-08
Abstract: 934,306. Tunnel diode logical circuits. ING.C. OLIVETTI & CIE S.p.A. Nov. 8, 1961 [Nov. 24, 1960], No. 40015/61. Class 40(6). A logical circuit comprises a tunnel diode which is switched from a first voltage state to a second voltage state by the concurrent application thereto of an excitation current and control current pulses, the latter being generated by a source of clock pulses connected to the tunnel diode through a gate selectively controlled by the input signals to the circuit. A logical NOR circuit shown in Fig. 1 has a tunnel diode T excited by a current from source A and connected to a supply of clock pulses B through a star connected gate comprising resistor 10, diode 16 and capacitor 11. In each cyclic operation of the logic circuit input signals are applied through terminals 3, 4, 5 and diodes 6, 7, 8 to resistor 10 during a first phase F 1  and the output signal is taken from terminal 18 only during a second phase F 2 . During the phase F 1  the capacitor 13 is charged to a voltage level corresponding to the high voltage state " 1 " through the diode 7 and resistor 10 as a result of an input signal on terminal 4 having a voltage level corresponding to state "1," the tunnel diode T being in the low-voltage state " 0 " and since the current flowing through the tunnel diode T is limited by resistor 10 it does not switch to its high voltage state "1." At the beginning of the second phase F 2  a clock pulse of amplitude " 1 " is applied to terminal 17 from source B which is blocked by diode 16, terminal 11 being at the voltage of the charged capacitor, and as the excitation current above is insufficient to switch the tunnel diode T the output is a logical "0." If during the next phase F<SP>1</SP> 1  input signals having a logical " 0 " state are applied to the terminals 3, 4, 5, capacitor 13 discharges through resistor 14 so that the voltage of point 11 is at the "0" level, with the result that when clock pulses are supplied to terminal 17, at the beginning of the following phase F<SP>1</SP> 2 , the gate is opened and the clock pulse charges the capacitor 13 and a current pulse passes to the tunnel diode T where this current together with the excitation current is of sufficient magnitude to switch the diode T to its high voltage " 1 " state until at the end of the phase a reset pulse from source C restores the tunnel diode to its initial state "0". The source of reset pulses may be eliminated and the resetting of the diode T may be obtained by interrupting the source A as shown at A<SP>1</SP>, Fig. 2. Specification 907,656 is referred to.
Patent GB-933469-A (GB)
Title: Improvements relating to glass sandwiches primarily for windows of optical instruments
Inventor: STRANG JOHN MARTIN
IPC: G02B23/16
Filed: 1957-12-27
Abstract: 933,469. Laminates. BARR & STROUD Ltd. Feb. 9, 1959 [Dec. 27, 1957], No. 40164/57. Class 140. Loss of definition in images transmitted by internally heated glass sandwiches is reduced by using as cement a transparent thermosetting synthetic resin, such as an epoxy resin. The Figure shows layers 4, 5 of glass separated by a layer 11 of cement containing wires 6 for electrical heating; busbars and stud terminals are provided. The wires are laid on layer 4, liquid cement is applied along with a polyamide hardener, the layer 5 is added and the whole subjected to heat and pressure.
Patent GB-1478126-A (GB)
Title: Water-repellent treatment
IPC: C07F7/08
Filed: 1973-08-28
Abstract: 1478126 Water repellancy NATIONAL RESEARCH DEVELOPMENT CORP 22 April 1974 [28 Aug 1973] 40474/73 Heading DIP [Also in Division C3]  Water-permeable surfaces are rendered water-repellent by applying to them a composition comprising an organic solvent-soluble organosilicon compound prepared by acidleaching cations from an inorganic silicate and replacing the cations by organosilyl groups. Preferably the composition is a solution in an organic solvent or an emulsion of such a solution in water and contains 1-25 wt % of the organosilicon compound. A cross-linking agent for the organosilicon compound may also be applied. In Examples 1, 11-13, and 15 powdered synthetic or natural wollastonite, olivine or sepiolite is shaken, optionally with glass ballotini as a grinding agent, with hydrochloric acid and hexamethyldisiloxane in isopropanol/water mixture; the products are taken up in hexane, added before or after the reaction. In Example 14 aqueous sodium silicate is stirred into dilute sulphuric acid, and the mixture into Me 3 SiCl in methanol. Each product is used as a 4 or 5 wt % solution in white spirit to treat dried cotton, wool, nylon or polyester/cotton fabrics previously treated with 4% titanium tetrabutoxide in white spirit (Exs 1-11, 13-15, 17 and 18), or brick (Ex 11), limestone (Ex 12), cement (Ex 16) or wooden panels (Ex 19). In Example 17 the product is dissolved in acetone, then emulsified in water.
Patent GB-1357927-A (GB)
Title: Process and apparatus for on-line yarn quality control
IPC: G01N27/22
Filed: 1971-08-31
Abstract: 1357927 Electro-physical measurement of yarn quality; measuring capacitance ASAHI KASEI KOGYO KK 31 Aug 1971 [29 Aug 1970] 40480/71 Headings GIN and G1U In a yarn thickness detector the capacitor measuring cell 10, 11 is connected in an R.F. energized bridge circuit having a controllable element such as capacitor diodes 13, 1 in the opposite arm controlled by means of D. C. bias from terminal 19 regulated by resistor 18, for ZERO ADJUSTMENT (according to required yarn thickness.) The output from the diagonal points of the bridge is rectified by diodes 64 and applied to a differential amplifier. Feedback from the amplifier is applied through a delay circuit 33 to the capacitor diodes 13, 14, or to a lamp cooperating with a photo-electric element to cancel LONG-TERM DRIFT (e.g. yarn defects which persist for 100 metres or more). Yarn thickness (as opposed to variation in thickness) may be measured by momentarily removing the yarn from between the capacitor plates and measuring the amplitude of the resultant pulse in the measuring circuit. This is accomplished Fig.2 (not shown), by a controlled S. C.R. 50 which discharges capacitor 49 through electromagnet 46 to momentarily pull down the spring-loaded yarn-guide 36.
Patent GB-1020242-A (GB)
Title: An electromagnetic switching assembly
IPC: H01H51/28
Filed: 1962-10-26
Abstract: 1,020,242. Electromagnetic relays. C. P. CLARE & CO. Oct. 26, 1962 [Nov. 9, 1961]. No. 40579/62. Heading H2B. An electromagnetic relay comprises a winding 18 surrounding a plurality of sealed magnetic contact units 16, the winding and units being secured to an insulating panel 12 by a plurality of L-shaped, resilient fasteners 20. One leg of each fastener is secured to one of the terminals 26, 28 of each unit and the other leg is secured to the panel 12 and abuts one end cheek of the winding former 30. Each fastener 20 also electrically connects its associated terminal to a conductive segment 14 on the panel 12. The winding may be additionally supported by two arcuate clips which embrace it and are electrially and mechanically connected to the printed circuit panel. The sealed units may be of the " mercury wetted " type.
Patent GB-1421804-A (GB)
Title: Portable electrically operated devices
IPC: H02K7/18
Filed: 1973-08-29
Abstract: 1421804 Dynamo-electric machines TEHSIUNG WU 29 Aug 1973 40582/73 Heading H2A A portable electrically operated device comprises an A.C. generator driven by a manually operated transmission mechanism and supplying electrical energy to a load forming part of the device. The device shown is a lamp and the generator comprises a permanent magnet rotor 18'surrounding a stator with interdigitated poles, Figs. 5, 6 (not shown). The rotor 18 is driven by a chain of gears 11-17 on depression of a handle 20 against a spring. A clutch between gears 11  and 12 ensures that the return motion of the handle is not transmitted to rotor 18. With the switch 60 in the position shown, the stator winding 70 supplies a bulb 30 through a rectifier 45 and also charges a battery 50 through rectifier 40. With the switch in the other position, the bulb will be supplied from the battery.
Patent GB-1035659-A (GB)
Title: Baby's nappy
IPC: A61F13/15
Filed: 1962-10-26
Abstract: 1,035,659. Diapers. S. J. B. PRATT. Feb. 28, 1963 [Oct. 26, 1962], No. 40669/62. Heading A3V. A baby's napkin is formed by stitching a pad 17 of foam rubber or plastic to one layer of a doubled piece of cotton fabric which is stitched to form a pocket open at the end 15 so that it may be turned inside out for washing. The pad may be sandwiched between two cotton fabric layers (not shown) co-extensive with itself. In use the napkin is folded to provided a lengthwise box pleat and the ends 22, 24, 25, 26 fastened round the child by means of buttons, tapes, press-studs, safety pins or hook-and-loop nylon fasteners. The napkin can be formed as a pair of knickers. Another form of napkin (Fig. 3, not shown) is formed by making cuts 34, 35 in a rectangular piece of fabric, folding and stitching the side pieces of fabric about a foam plastic or rubber pad and tucking in the end flaps 41, 42. In use the napkin is folded on the line 32 to form a double thickness crotch and abdomen portion.
Patent GB-1243811-A (GB)
Title: A process for the formation of polymer images from photographic images
IPC: G03F7/028
Filed: 1968-08-28
Abstract: 1,243,811. Polymer images. FUJI SHASHIN FILM K.K. 28 Aug., 1968 [28 Aug., 1967], No. 41188/68. Heading C3P. [Also in Divisions C2 and G2-G3] Polymer images are prepared by treating a silver halide emulsion layer bearing a latent image with an optionally substituted 2-pyrazoline - 5 - one or a 3 - pyrazoline - 5 - one (the carbonyl group in the 2-pyrazoline-5-one being optionally acylated) in the presence of water and at least one vinyl or vinylidene monomer. The pyrazolone and monomer(s) may be incorporated into the emulsion or a processing solution. Specified monomers are acylamides, acrylonitrile, acrylic and methacrylic acids, salts and esters, vinyl ethers, vinyl esters, heterocyclic vinyl compounds, vinyl sulphonates, vinyl benzene sulphonates and divinyl compounds. The monomer is preferably mixed with a binder and a thermal polymerization inhibitor, and is polymerized in the presence of a sulphite or sulphite precursor. The polymer image may be developed by selectively washing away the unpolymerized areas and/or colouring the image with a dye.