baber/WOPTO huggingface dataset:
Patent GB-572366-A (GB)
Title: Improvements relating to the manufacture of printing inks
IPC: C09D11/06
Filed: 1943-04-08
Abstract: 572,366. Ink. BADER, E. April 8, 1943, No. 5629. [Class 146 (iii)] A quick-drying printing-ink is compounded from carbon black and the resin-like product obtained by the action of sulphur or sulphur chloride on fatty oils, e.g. by the processes described in Specification 570,262, [Group V], which is soluble in organic solvents, and becomes non-tacky and insoluble when brought into contact with an accelerator, such as zinc oxide, magnesium carbonate, or calcium carbonate. The accelerator may be held in suspension in the ink or incorporated in the paper. The setting can be quickened by the action of heat. A thinner, such as petroleum, and a drier, such as cobalt linoleate, are included in the ink. The process may be employed for duplicating and silk-screen inks. The Provisional Specification describes also the application of the process to inks for typewriter ribbons and rubber stamps.
Patent GB-511700-A (GB)
Title: Improvements in or relating to the manufacture of artificial spinnable material frommixed solutions of protein and viscose
IPC: D01F2/10
Filed: 1938-02-23
Abstract: 511,700. Viscose and protein filaments, films, &c. AMBROSIO, A. D', and CORBELLINI, A. Feb. 23, 1938, No. 5679. [Class 2 (ii)] Filaments, ribbons, sheets and the like are prepared from viscose with which has been mixed a mass obtained by mixing and kneading a protein material insoluble in alkali with an alkali sulphide solution. Protein materials specified are horn, hooves, nails, hair and wool waste, gluten and ossein. Suitable proportions are 100 parts of protein to 150-300 parts of a 5-15 per cent. aqueous solution of alkali sulphide. The filaments produced may have a protein content up to 90 per cent. After degassing the protein-viscose solution and coagulating it in a wet coagulating bath, the filaments and the like obtained are tanned in a bath containing a protein insolubilizing agent, e.g., aldehyde, a water-soluble aluminium salt, and if desired, a weak organic acid, e.g., lactic acid. The tanning may take place in part at room temperature and in part at 45-50‹C., and after being washed, the products may be dried at 100-105‹C. Substances such as titanium dioxide, barium carbonate and insoluble silicates may be precipitated in or on the filaments. Specification 255,623, [Class 2 (ii)], is referred to.
Patent GB-1375794-A (GB)
IPC: H03K5/1532
Filed: 1972-02-08
Abstract: 1375794 Automatic timing; data transmission systems INTERNATIONAL BUSINESS MACHINES CORP 8 Feb 1972 [19 Feb 1971] 5691/72 Headings H3A and H4P In a self-clocking data transmission system strobe pulses normally at the bit frequency of the received data are generated locally by two cycling counters when their combined counts equal a predetermined value, and to maintain the strobe pulses at the centre of each bit counters are advanced or retarded according to their state of count at the arrival of the leading stage of a data pulse for one counter and the trailing edge for the other counter. In Fig. 1 the leading and trailing edges of the first pulse of a stream of data at input 1 via detectors 2 and 3 set latches L1, L2, whereby cycling counters CRTA and CRTB are driven by clock 4 via AND gate 6 for CRTA and via a half-bit period delay 16 and AND gate 9 for CRT3. Both counters cycle for 0-7, CRTA having a nominal count of 0 at the leading edges of data pulses and CRTB a count of 0 at the trailing edges, whereby upon the combined count reaching 9 adder circuit 14 provides a strobe pulse to pulse detecting circuit 15 to sample the data signal and give a 0 or 1 output accordingly. Should the leading edge be early whereby counter CRTA still has a count of 7, at the next clock pulse AND gate 5 opens to step CRTA two places to a count of 1; alternatively should the leading edge be late when CRTA has a count not equal to 0 (but also not equal to 7) then AND gate 7 via inverter I inhibits AND gate 6 for one clock period thereby inhibiting the stepping of CRTA. Counter CRTB and AND gates 10, 9 and 8 operate in a similar fashion on the trailing edges of data pulses. The arrangement can correct any distortion with a predetermined limit, extra pulses to be added or inhibited can be produced for different levels of distortion.
Patent GB-1337364-A (GB)
Title: Optical communications system
IPC: H04L7/04
Filed: 1972-02-08
Abstract: 1337364 Optical communication INTERNATIONAL BUSINESS MACHINES CORP 8 Feb 1972 [26 Feb 1971] 5693/72 Heading G1A In a system for the optical transmission of data bits in which a pulsed light source such as a mode-locked laser is used for transmission, and another in the receiver for the detection process, synchronization checking, and tracking signals are transmitted with the data signals, the former to render the latter ineffective, and to "turn off", the detectors if the information bits are one or more bit periods out of position, and the latter to effect automatic control of the timing of the pulses applied to the receiver from the receiver light source. The synchronization checking signal employs what is called a perfect word, which is one in which the sequence obeys the following law Where L is the total number of bits in the word, b n = I or O, and N is the number of bits in the word having a value of I; which results in an output of only one single pulse if the synchronization checking sequence is displaced by one or more time slots. Parallel data bits applied by modulators 9, Fig. 1, to simultaneously-appearing plane-polarized partial beams forming channels A-N, the tracking signals 12Y, 12X, and the synchronization checking signal, α, #, γ, # are transmitted serially as a sequence of bits spaced according to the positions vertically of the beam splitting mirrors 12 on which they are simultaneously incident, the mirror spacing of the synchronization checking group, developing from the incident laser pulses the perfect word which, in the embodiment shown in which the spacing is 1, 3, 2 pulse position units, is 110 1001. The transmitter includes paired lenses 3, 4 in the correlated beam from lens 6 in which the focal length of lens 4 is less than that of lens 3 to reduce interchannel interference; and birefringent half-wave elements 10 to rotate the plane of polarization of the synchronization checking word. The received signal bits are time sorted by beam splitters 42 Fig. 2a, combined with pulses from the receiver laser in Nicol prism 46, and the Nicol prism output is sensed by a coincidence detector arrangement 48, 50, 52, and converted to electrical signals by photo-multiplier 54. Synchronization of the local pulses is achieved by the tracking pulses, one path including a fixed delay 41, and a differential amplifier 66 developing an error signal from the two channels to actuate a variable laser pulse delay means 70 which comprises mirrors 76, 77 which are moved by a Piezo-electric device 72 responsive to the error signal to increase or decrease the receiver laser beam path. Amplifiers 59Y, 59X are shut off by a reduced output from the synchronization checking signal detector 57 in the event of the synchronization error being one or more time slots.
Patent GB-349548-A (GB)
Title: Improvements in or relating to stereoscopic kinematography and optical projection
IPC: G03B35/00
Filed: 1930-02-20
Abstract: 349,548. Stereoscopic kinematography &c. ASPDEN, R. L., 6, Southport Road, Chorley, Lancashire. Feb. 20, 1930, No. 5708. [Class 97 (i).] A shutter moving continuously in one direction is provided with apertures controlling successively the beams from apparatus projecting stereoscopic pairs of images on to substantially the same area of the screen, and the eyes of one or more spectators. As shown, a cylindrical shutter 8 having vertical slots 9 rotates between arcuate tiers of seats 2, 3 and a projection screen 4. Projection apparatus 7 for two films bearing right and left images respectively, or for a film bearing pairs of images side by side, is arranged substantially to bisect the arc formed by the tiers of seats, and the shutter produces the alternate projection of right and left images and permits the spectators to view each image with the appropriate eye. A partition 5 with one or more glazed windows 6 prevents spectators from touching the shutter 8. The shutter may be suspended by ties from a ball race, may be supported by struts from a thrust bearing, may be rotated, through belt gearing, by a motor, and may have strengthening bars across the slots. Tiers of seats 23 may be arranged on the side of the screen remote from the projector, or screens may be placed on each face of a prism at the centre of the shutter, seats being arranged all round it. Walls 16, 16a may be provided to restrict the view of the spectators. The shutter may be in the form of an endless band or disc. The films may be in natural colours and may carry sound records. According to the Provisional Specification, one film bearing stereoscopic pairs of images arranged alternately along its length may be used.
Patent GB-1247237-A (GB)
Title: Process for modifying organic polymers
IPC: C08K3/08
Filed: 1969-02-03
Abstract: 1,247,237. Treating aryl-vinyl polymers with an alkali metal. SOC. NATIONALE DES PETROLES D'AQUITAINE. 3 Feb., 1969 [5 Feb., 1968], No. 5717/69. Headings C3G and C3P. An aryl-vinyl polymer or copolymer is kneaded with an alkali metal at a temperature such that a homogeneous dispersion of the metal in the resin is formed, the kneading being continued until there is no more free metal in the mixture. The polymer may be derived from styrene, alpha-methyl styrene, vinyl toluene or vinyl naphthalene. The alkali metal may be in amalgam or alloy form. In one embodiment, polystyrene containing free styrene is kneaded with sodium to form an activated polystyrene with which the free styrene reacts. In other embodiments the activated vinyl aromatic polymer is grafted with an ethylenically unsaturated monomer or reacted with a modifying substance e.g. carbon oxychloride, sulphur chloride, carbon dioxide, an alkali or alkaline earth metal bicarbonate, hydrogen sulphide, cyanogen, a halohydrocarbon, nitrile or ethylene oxide. Block polymers may be formed from activated polystyrene and, e.g. ethylene oxide. Examples are given in which (a) polystyrene is kneaded with sodium prior to being reacted with carbon dioxide, sodium bicarbonate and citric acid, propylene oxide, ethylene oxide or butadiene and (b) polystyrene or poly (alphamethyl styrene) is kneaded with a K-Na alloy prior to being grafted with methyl methacrylate.
Patent GB-1107194-A (GB)
Title: Weakly foaming washing and cleaning agents
IPC: C11D3/00
Filed: 1966-02-10
Abstract: Weakly foaming washing and cleaning agents contain water-insoluble melamine derivatives of formula <FORM:1107194/C4-C5/1> in which R1, R3 and R5 represent hydrogen or organic radicals having 1-24 carbon atoms and R2, R4, and R6 represent organic radicals having 1-24 carbon atoms and wherein, on at least one of the amine nitrogen atoms, the two radicals together contain at least 6 carbon atoms, the organic radicals being straight or branch-chain aliphatic, cycloaliphatic or aromatic hydrocarbons which may contain hetero atoms or further substituents such as halogen, and the said agents may contain anionic, ampholytic, cationic and/or non-ionic detergents and other additives such as polyphosphate, bleaching agents, stabilizers, dirt-dispersing agents, optical brighteners, perfumes and dyes, may also be included.  A process for the production of the said agents comprises mixing the said melamine derivatives in the form of a finely divided solid, or as a liquid, molten or dissolved in organic solvents, with the powdered or granulated washing agent.
Patent GB-820463-A (GB)
Title: Improvements in or relating to the dyeing, bleaching and/or waving of hair
IPC: A61Q5/08
Filed: 1957-02-20
Abstract: Ozonized steam is applied to hair to accelerate or improve the action of dyes, bleaches or waving lotions.  The bleaching solution may contain hydrogen peroxide or ammonia and is applied to the hair prior to application of the ozonized steam, which is generated in a helmet applied to the head.  In a cold waving process in which a reducing solution is followed by a neutralizing solution, e.g. of hydrogen peroxide containing tartaric or citric acid, the ozonized steam is applied to the hair while still wet with the neutralizing solution.
Patent GB-179350-A (GB)
Title: Improvements relating to reinforcement for use in concrete construction
IPC: E04C5/04
Filed: 1921-02-21
Abstract: 179,350. Tawse, G. A. Feb. 21, 1921. Reinforced concrete. -Sections of the metal fabric described in Specification 178,987 are connected side by side, as shown, or end to end, by wires c with central bends d, d<1> to fit over the selvedge wires. The wires c may be single or in pairs and are placed adjacent to the wires b or a and interwoven with the wires a or b. The wires c may be of a triangular, square, or other non- circular section.
Patent GB-806656-A (GB)
Title: An improved alternating current generator
IPC: H02K57/00
Filed: 1956-02-27
Abstract: 806,656. Machines with permanent magnets. THILLAIMUTHU, J. Feb. 27, 1956 [April 4, 1955], No. 6009/56. Class 35. [Also in Groups XXXVI and XXXVIII] An alternating current generator has a stator 19, conductors 21 wound on the stator, a keeper 20 axially adjacent to the stator; a rotor assembly comprising a permanent magnet and mounted for rotation within the stator and keeper and means for continuously axially displacing the rotor assembly with respect to the stator and keeper. Such a generator can be used for computations involving two variables since the rotor assembly can be driven at a speed proportional to one variable and effective magnetic flux can be made to vary in proportion to the second variable, the voltage output from the generator being applied to a voltmeter and indicating the product of the two variables. In the embodiment shown in Fig. 2, the rotor assembly is slidable axially on a main shaft 11 so that the effective flux is at a maximum when it is under the stator 19 and at a minimum when it is under the keeper 20. The rotor assembly comprises a cylindrical sleeve 13 which is slidable on, but keyed to, the main shaft 11 and this carries a multi-pole permanent magnet 14. The rotor assembly is moved by means of a rack 25, Fig. 4, which is slidably mounted in bearings 6 and 7 and which is connected to the rotor assembly by means of a split-ring 17 which is slidable in a groove in the cylindrical sleeve 13. The rack 25 is engaged by a gear sector 24 which is moved by the second variable through a link 22. For measuring the horse power in a shaft (see Fig. 7), a torque tube 34 is rigidly connected at one end to the shaft and at the other end it has a plurality of slots 38, each of which are engaged by pins 39 carried by levers 40 pivoted to the shaft. When the shaft is transmitting power it twists to an amount proportionate to the transmitted torque and consequently the levers 40 rotate on their pivots and longitudinally move a plate cam 43. The movement of the plate cam is transmitted through linkage to the gear sector 24 and so moves the rotor assembly. The rotor assembly is coupled to the shaft so that it is rotated at a speed proportional to that of the shaft and hence the voltage registered by the voltmeter 52 is an indication of the horse power transmitted by the shaft. To cater for other than linear variables the polepieces can be shaped.
Patent GB-749931-A (GB)
Title: Improvements in or relating to low pressure steam generating boilers
IPC: F22B9/12
Filed: 1954-03-02
Abstract: 749,931. Low-pressure steam boilers. ARIE RIJSDIJK-BOSS & ZONEN N.V. March 2, 1954 [March 4, 1953), No. 6048/54. Class 123(2). In a steam boiler comprising one or more furnace flues leading to return fire tubes 6 located below the normal water level and generating low-pressure steam for, say, steaming soil in greenhouses, a substantially horizontal screen of narrowly-spaced smoke tubes 3 extends from a front smoke box 2 to a rear box 4, with outlet 7, so as to divide the steam space into two parts. These smoke tubes 3, which are intended to prevent priming and also to superheat slightly the steam passing to the main outlet pipe, eliminate the use of conventional boiler stay-bolts.
Patent GB-982435-A (GB)
Title: Improved hinge
Inventor: SHAW LESLIE RALPH
IPC: E05F1/12
Filed: 1963-02-15
Abstract: 982,435. Spring hinges. BLOXWICH LOCK & STAMPING CO. Ltd. Dec. 19, 1963 [Feb. 15, 1963], No. 6151/63. Headings E2F and E2M. A hinge for a car boot lid or bonnet comprises a hinge arm 10 attached to the lid or bonnet and pivoted on a pin 11 in a fixed bracket 12, a tension spring 13 being connected to the pin 11 and to a pin 14 moving in a straight slot 15 in the hinge arm and in a cam slot 16 in the bracket 12. The slot 16 forms part of a spiral such that the spring loading is at a maximum when the lid or bonnet is closed and at a minimum when it is open. One or more retaining notches 17 may be provided in the slot 16. In a modification, Fig. 2 (not shown), a link is pivoted at one end of the pin 14 and at the other end to the hinge arm. The hinge arm and the bracket may be formed as pressings of U form or may be formed by spaced parallel plates and the spring may be replaced by two or more parallel springs.
Patent GB-139312-A (GB)
Title: Seat-covers or aprons for use on road vehicles and the like
IPC: B60N2/60
Filed: 1919-03-12
Abstract: 139,312. Bull, J. March 12, 1919. Covers for exposed seats and occupants. - A seat cover or apron for use on road vehicles &c. comprises a U-shaped frame A pivoted to the sides or edges of the seat-back C, or to brackets thereon, the frame carrying an apron D and being so arranged that it can be turned completely over the back of the seat. According to the Provisional Specification, a similar frame and apron may be affixed to the front wall of the vehicle for use as a cover for the front seat.
Patent GB-591398-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A1/08
Filed: 1942-05-07
Abstract: 591,398. Ordnance. BURNEY, SIR C. D. May 7, 1942, Nos. 6170 and 14887. [Class 92 (ii)] In order to provide for a substantially constant gas pressure on the projectile during its passage down the barrel, a gun, using a cordite or like propellent charge whose burning rate is dependent on pressure, has the charge fired in a cartridge chamber having unrestricted communication with a gas chamber or space provided with one or more nozzles, the throat area of which exceeds 50 per cent and is preferably 66 per cent of the barrel bore, and through which some of the gun gases escape to the atmosphere immediately on firing. The invention is shown in Fig. 6 applied to the gun described in Specification 586,749 in which the cartridge chamber 75 is formed in a member turned for opening the breech about central vertical trunnions 79, Fig. 2. The gas chamber 50 with divergent nozzles 51, 52 and grid 53 is arranged as shown in Fig. 5, the central nozzle being adjusted by screwing with respect to a fixed valve member 56 to vary the discharge throat area. The percussion firing mechanism for the primer 60 is housed in a boss 61. The hammer 67 actuates through a pin 66 a sectorshaped member 64<11> engaging the spring- retracted firing pin 62. The invention permits the use of a longer and lighter barrel, and muzzle drop is then prevented by tapered radial ribs 72, Fig. 7, welded to the barrel 68 and enclosed in a casing 73. The ribs may be helically arranged and tapered in a parabolic curve. The muzzle of the gun may have perforations as described in Specification 586,749 to relieve pressure on the projectile as it leaves the gun.
Patent GB-666160-A (GB)
Title: Optical systems and colour selective reflectors for use therein
IPC: G02B27/14
Filed: 1949-03-07
Abstract: 666,160. Colour selective reflectors. RADIO CORPORATION OF AMERICA. March 7, 1949 [March 17, 1948], No. 6176/49. Class 97 (i). A colour selective reflector of the light ray interference type comprises a plane transparent support having thereon a layer consisting of a partially transparent and specular film or films, the or each film having a maximum thickness less than the wavelength of the light to be reflected and the layer having a thickness which varies continuously in one direction and is constant in an orthogonal direction and, when the layer consists of several films, adjacent films having different indices of refraction and at least one film varying in thickness continuously in said one direction. Two such reflectors may be used as shown in Fig. 1 in conjunction with apparatus for projecting red, green and blue light respectively. The reflector 1 is arranged to reflect red light, the reflector 2 to reflect blue light and each reflector to transmit green light and the difference between the maximum and minimum thicknesses of each reflector is chosen in accordance with the inclination of that reflector to the axis of the projector associated therewith, so that the light reflected by each reflector is of uniform colour. In the form shown in Fig. 7, the reflector consists of a glass support 3 on which is coated a layer comprising three tapered films 4-6, the film 5 being of a refractive index less than the films 4 and 6. The films may be applied by thermal evaporation in a vacuum, the glass support 1 being inclined to the line joining the centre thereof to the evaporator.
Patent GB-1454953-A (GB)
Title: Method of producing tantalum capacitors by anodising
IPC: H01G9/00
Filed: 1974-02-12
Abstract: 1454953 Anodizing tantalum PLESSEY CO Ltd 20 Dec 1974 [12 Feb 1974] 06275/74 Heading C7B A Ta capacitor is produced by anodizing a Ta anode e.g. of foil or sintered powder in an electrolyte, e.g. an aqueous solution of phosphate, phosphoric acid, sodium sulphate, sulphuric acid, oxalic acid or citric acid, with or without glycol, maintained at or below 25C, the current density being selected in the range 0.1 to 10.0 mA/cm<SP>2</SP> to minimize heat dissipation and prevent oxide crystals nucleating.
Patent GB-514252-A (GB)
Title: Improvements in and relating to bearings for spindles
IPC: G01R11/12
Filed: 1938-03-01
Abstract: 514,252. Pivot bearings. ENGLISH ELECTRIC CO., Ltd. March 1, 1938, No. 6378. Convention date, March 1, 1937. [Class 12 (i)] A pivotal footstep bearing for meters and the like has a substantial area of the contact surface of the pivot preformed to a curvature approximately the same as that of the opposed contact surface of a cup supporting it and the pivot is formed of a metal which is non- oxidizing when exposed to air under operating conditions. The pivot may be of an alloy formed predominantly of gold and include a metal from the platinum group, silver, copper, and zinc. The contact surface of the pivot may have a diameter of 0.005 to 0.01 inch when the shape corresponds with that of the cup. If the pivot end is initially flat the contact diameter with the cup should be about 0,0025 inch. As shown, the sides of the pivot 41 extend steeply away from the contact surface of the cup, and the pivot is carried in a holder 10 having a split 42 to enable it to be inserted in a variety of sizes of socket. Specification 514,295 is referred to.