baber/WOPTO huggingface dataset:
Patent GB-1471445-A (GB)
Title: Ink
IPC: C09D11/00
Filed: 1974-04-25
Abstract: 1471445 Ink containing colour former CIBAGEIGY AG 22 April 1975 [25 April 1974] 18199/74 Heading C4A [Also in Division D2] An ink comprises an ink vehicle having a pH of about 7, a colour former and sufficient liquid organic base to ensure that no reaction occurs between the colour former and substrate on which the ink is to be printed. Suitable organic bases are amines and alkanolamines. An inert plasticizer which is a solvent for the colour former may be present. The colour former may be an azo compound, or a lactone, a spiropyran or related, a leuco or a metal complex forming colour former. Suitable vehicles are nitrocellulose, zinc resinate, a polyamide resin, a vinyl, acrylic or alkyd resin, ethyl cellulose, a stand oil or a resin modified stand oil. A pigment may also be present. An image-producing system comprises a substrate having the ink printed on at least a portion of a surface thereof and a carrier material impregnated with a solution of an organic acid in a weakly volatile high boiling solvent having a boiling point of at least 150 C. The substrate may be paper which has been formed using a neutral or alkaline size. The carrier material may be a fabric, a paper or a felt or fabric pad.
Patent GB-650728-A (GB)
Title: Improvements in or relating to finger-operable actuator buttons for calculating machines, typewriters and other office machines
IPC: B41J5/12
Filed: 1947-07-10
Abstract: 650,728. Attaching knobs. FELT & TARRANT MANUFACTURING CO. July 10, 1947, No. 18267. Convention date, April 23, 1945. '[Class 44] [Also in Groups XVI and XIX] The head 12 of a key for a typewriter or a calculating or other office machine is detachably connected to a stem 13 by the engagement of a detent 15 in the head with a notch 13c in the stem. The stem 13 extends into a slot 11a in the head. The detent 15 is held in the notch 13c by a spring ring 14 mounted in a groove in the head. the end 14a of the ring resting in a cavity 11c in the base of the groove.
Patent GB-631840-A (GB)
Title: Treating tobacco in hogsheads
IPC: A24B3/02
Filed: 1947-07-10
Abstract: In treating hogshead tobacco the steps of evacuation and steaming are repeated at least so many times that the product of the number of evacuation steps and the total fall in pressure is at least 20, and preferably 30, and the product of the number of steaming steps and the total increase in pressure is at least 50 and preferably 64, the pressures being reckoned in inches of mercury.  The pressure is reduced to at least 4 inches of mercury and preferably to 1 inch. Examples are given involving three or four evacuation steps and four or five steaming steps. Specification 508,264 is referred to.
Patent GB-140685-A (GB)
Title: Improvements in garments for children
IPC: A41D11/00
Filed: 1919-07-23
Abstract: 140,685. Borgenicht, L. July 23, 1919. Blouses; skirts.-A combination outdoor garment for children, which can be worn so as to produce four different effects, comprises two separate but detachable parts, namely, an upper blouse part 3 and a lower skirt part 12. The upper part is formed as a conventional child's blouse with pleats 8, a belt portion 4, a short skirt 5, and two series of buttons, one series 9 outside and the other 11 inside the belt portion, each pair of buttons being secured preferably to the garment by the same thread. Some of the buttons are secured on the pleats. A deep belt 7 is also provided. The separate skirt part has a wide waistband 13 and a series of button-holes therein. The blouse and the skirt may be of the same or of different materials, and can be worn separately. When used together, the skirt may be buttoned either to the inner row of buttons, the result being as shown in Fig. 2, or to the outer row, as indicated in Fig. 1.
Patent GB-1194452-A (GB)
Title: Improvements in or relating to methods of Encapsulating Electrical Components in Hardenable Synthetic Material
IPC: B29C45/14
Filed: 1968-04-18
Abstract: 1,194,452. Moulding plastic substances. SIEMENS A.G. 18 April, 1968 [19 April, 1967], No. 18382/68. Heading B5A. [Also in Division H1] In the manufacture of electrical components, the components are carried by an electrode framework (e.g. of nickel-iron-cobalt alloy) which contains linking portions 2 designed to act as the sealing part for the halves of an injection or press mould. As shown semiconductor diodes (5) are each mounted on an electrode 4 and wired to an adjacent electrode 3 and the assembly is placed between the halves of an injection mould 10. When epoxy resin is forced through inlet 13 into the mould its egress is prevented by the linking portion 2. To complete the devices, the linking portions are cut away (at 8) and the resin portions 26 are cut away to separate the two diodes of each pair; finally the base strip of each set of components is severed to produce the individual devices. Transistors, integrated circuits, resistors, and capacitors may be similarly encapsulated. Reference has been directed by the Comptroller to Specification 1,125,428.
Patent GB-183948-A (GB)
Abstract: 183,948. North, R. B., and Allen, A. Massey-. May 10, 1921. Magneto-electric machines.-A magneto cut-out arranged to earth the ignition current when the timing lever c is in the retarded position has a rotatable cam case b provided with an insulating cover j. The cover i is provided with an external insulating plate r secured thereto by screws s, and spring arms u, v attached to a pillar y of the magneto casing have toothed and rounded ends z, u<2> respectively which snap into corresponding recesses of the plate r to prevent rotation of the cover. Between the cover plates r, j in an annular recess of the latter, is clamped a metal ring l with a lateral projection q which is adapted to be contacted by an arm k carried by the timing lever c when fully retarded. The ring l is in permanent contact with the insulated end of the primary winding by means of a wire m connected to a central terminal screw n in the cover j, the screw n carrying inwardly a bow spring t bearing a carbon brush 5, on which rubs an insulated stud in the end of the magneto shaft, this stud being connected to the primary winding. The ring l can be adjusted angularly after loosening the screws s, the position of the projection q being altered to correspond with varying positions of the timing lever c. The curved end of the wire. m is arranged in a recess p of the plate j to maintain contact with the ring l during and after its adjustment. The cover j is interiorly fitted with an anti-friction metal liner w, x which projects into the cam case b to form a bearing. As applied to magnetos of the type described in Specifications 158,652 and 160,931 in which adjustable polepieces are connected with the cam case b, the friction between the fixed cover and the cam case prevents displacement of the latter due to magnetic drag on the adjustable pole-pieces.
Patent GB-665461-A (GB)
Title: Magnetic recording and reproducing
IPC: G11B5/02
Filed: 1948-07-08
Abstract: 665,461. Magnetic recording and reproducing apparatus. BRUSH DEVELOPMENT CO. July 8, 1948. [July 21, 1947] No. 18398/48. Class 40 (ii). [Also in Groups VIII and XXXV] In a magnetic transducing apparatus, A.C. bias is employed, having a frequency of at least twice the highest frequency to be recorded and a record track material is used of interfelted fibre or paper less than about 3 mils thick containing a permanently magnetizable iron oxide powder having a particle size of 1 micron or less, the distribution of the particles in the surface adjacent to the pole pieces of the transducer being about 6 per cent to about 25 per cent by volume. The powdered magnetic iron oxide may be mixed with a slurry of papermaking fibres, preferably Kraft, containing bonding agents, such as polymerized resins, ethylenes, vinyl compounds, cellulose, casein, rubber latex, gum, starch, &c., and smoothed as by calendering by pressing between polished and heated rollers in such a manner that an element of slippage between the rollers is produced which is effective for densifying and levelling the surface of the paper. Details are given of various processes of manufacture of the paper. The tape which is slightly wider than the guide structure 2-26, Fig. 7 of the transducer is guided over the pole pieces 2-21 by guide walls 2-31, and may be provided with coloured coatings or labels to indicate parts of the record, or the coating may include a layer of electrically conducting substance for controlling a starting or stopping operation. Specifications 647,962, 670,573 and 676,761 are referred to.
Patent GB-842977-A (GB)
Title: Improvements in methods and apparatus for measuring gel strength and viscosity
IPC: G01N11/16
Filed: 1956-06-14
Abstract: 842,977. Testing physical qualities of materials. BRITISH RUBBER PRODUCERS RESEARCH ASSOCIATION, and SOUTHORN, W. A. Sept. 12, 1957 [June 14, 1956], No. 18402/56. Class 106 (2). The strength of a weak gel is measured by applying a very small cyclic torsional stress, first in one sense and then in reverse, and recording the stress required to produce the constant maximum strain at .the end of each cycle, the strain being in all cases below the yield value of the material. and applied so slowly as to discriminate between viscous and structural effects. Apparatus for measuring the strength of rubber latex coagulum, for example, comprises a motor-driven oscillatory head 1 which transmits a stress down a torsion wire 2 to a bob 5 located within the material to be tested held in a glass cup 6 fitted in a double-walled vessel through which water at a controlled temperature may be circulated. The stem of the bob 5 carries an arm 7 ending in two platinum contacts which touch alternately silver plates 8, 9 to operate a series of relays which reverse the motor and cause a pen to make a mark on a sheet of paper on a constant-speed drum, thus producing two symmetrical curves whose separation at any point on the time axis is an approximate measure of the elastic modulus of the coagulum. A correction for the viscosity of the latex and the physical constants of the apparatus may be applied by subtracting from the subsequent readings the separation of two parallel lines obtained by first making a blank run with latex in the cup without coagulant. The head 1 is arranged to rotate extremely slowly, e.g. one revolution per five minutes; the record drum speed may be varied and is usually one revolution an hour or a day; the bob may be of stainless steel and 1¢ inches in diameter and the cup 2¢ inches in diameter; platinum contacts may be fitted to give a permitted travel of the bob of 1 or 5 degrees of arc and the range of the apparatus can be varied over a wide range by providing a series of calibrated wires 2.
Patent GB-146423-A (GB)
Title: Improvements in the firing mechanism of automatic fire-arms
IPC: F41A19/32
Filed: 1920-07-03
Abstract: 146,423. Ortgies, H. June 18, 1918, [Convention date]. Breech actions, sliding breech-block.-Relates to the firing-mechanism of automatic pistols, and consists in preventing double shots by providing an " interrupter " comprising a member carried by the sear and normally engaged by the trigger, but adapted to be moved laterally into an inoperative position by the recoiling breech-slide. In the construction shown, the " interrupter " comprises a laterally-sliding spring stud m mounted at the front of the sear d and carrying a dish n, which is normally engaged by the trigger-blade q. The stud m is pressed inwards when the breech-slide is retracted, the disk n being thereby disengaged from the trigger-blade q.
Patent GB-713823-A (GB)
Title: Process for the production of benzoic acid-ú­-sulphonamide
Filed: 1952-07-22
Abstract: The ammonium salt of benzoic acid p-sulphonamide is made by reacting a p-sulphonyl halide of a benzyl halide, of a benzal halide, of a benzotrihalide or of a mixture of these with an aqueous solution of ammonium polysulphide or with aqueous ammonia and sulphur at a temperature not below 10 DEG  C. and at elevated pressure.  The mixture of halides may be obtained, for example, by chlorination of p-toluene sodium sulphonate in the solid phase to introduce about 1 gram atom of chlorine per mol.  In an example, sodium p-toluene-sulphonate chlorinated in the side chain and containing 1.08 gram atoms of chlorine per mol. is reacted with phosphorus pentachloride and the mixture obtained fractionated to remove p-toluenesulphonyl chloride.  The chlorinated p - toluenesulphonyl chloride is heated under pressure with aqueous ammonium hydrosulphide, sulphur and dioxan to yield, after acidification of the product, benzoic acid p-sulphonamide.  In a second example, a similar chlorinated p-toluenesulphonyl chloride is heated under pressure with aqueous ammonia, sulphur and dioxan.  Instead of dioxan, other organic solvents such as pyridine may be used.
Patent GB-166137-A (GB)
Title: Improvements in or relating to cathode tubes
IPC: H03F3/02
Filed: 1921-07-07
Abstract: 166,137. Graaff, W., and Dresla, P. July 8, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Thermionic amplifiers. - An amplifying valve for use in telephony, wireless telegraph and telephone systems, and for recording sound vibrations, has an incandescent cathode, an anode, and two grids, the circuit containing the currents to be amplified being connected across the grids. One grid Gb, Fig. 1, may be arranged between the cathode k and the anode A, and the other grid Ga on the other side of the anode or cathode, or both grids may be on the far side of the anode. In the valve shown in Fig. 3, both grids Ga, Gb are on the outside of the cathode and anode. A number of such valves, for instance, sixty, may be connected as shown in Fig. 5, for amplifying telephone currents, with the cathodes in parallel or series, and the grid circuits and anodecathode circuits in parallel. The anodes A are connected with the cathodes k through a battery c, a telephone receiver d, and one winding e of a transformer, the primary of which is in circuit with a microphone m. The current to be amplified is supplied to the grids Ga, Gb through another winding of the transformer. The receiver d may be replaced by an incandescent lamp for recording light variations on a film, or by an electromagnet operating a stylus or a steel wire recorder.
Patent GB-146453-A (GB)
Title: Improved process for extracting materials
IPC: B01D11/02
Filed: 1920-07-03
Abstract: 146,453. Elektro-Osmose Akt.-Ges., (Graf Schwerin Ges.). July 3, 1919, [Convention date]. Extracting sugar. - Electric current is passed through sugar-beet &c. and water while between diaphragms impermeable to the sugar, which is thus purified. The beet may be placed in alternate compartments c of an apparatus made up of wooden frames a, b, separated by diaphragms and perforated electrodes d. Water is passed into the compartments c by ducts h from a passage g in the lower sides of the frames. Impurities from the sugar solution pass off through the diaphragms into the adjacent compartments, which may be empty or filled with water. The diaphragm before the anode is of electro-positive material such as bladder, and that before the cathode of electro-negative material such as cellulose. Separate valved pipes i, l lead upwards through the frames for withdrawal of the products. According to the Specification as open to inspection under Sect. 91 (3) (a) one diaphragm may be permeable to the extract; also heat may be applied to the extracting liquid or otherwise. This subject-matter does not appear in the Specification as accepted.
Patent GB-348926-A (GB)
Title: Improvements in and connected with teapots and the like
IPC: A47G19/14
Filed: 1930-06-18
Abstract: 348,926. Teapots. ELWELL, S. H., 31, Victoria Street, Chadderton, Oldham. June 18, 1930, No. 18555. [Class 129.] A teapot has the spout 5 near the top and a horizontal perforated baffle 2 located midway between the base of the spout and the bottom of the pot, to prevent tea leaves from fouling the perforations 1 of the spout.
Patent GB-242000-A (GB)
Title: Improvements in the manufacture of warp knitted fabrics and in machines therefor
IPC: D04B27/00
Filed: 1924-08-05
Abstract: 242,000. Frymann & Fletcher, Ltd., and Fletcher, S. S. Aug. 5, 1924. Warp machines.-Horizontal stripes, checks, and like effects are produced by using ground and face threads, the latter being alternately lightly and heavily tensioned to give a looped pile face and a plain face respectively. One ground thread is used for each needle, and each thread is traversed over four needles for example, pillaring on alternate needles. A full set of facing threads is also employed, each being traversed over ten needles for example, three at a time. For striped effects, the full set of face threads are taken from one beam which has the usual light tension means and is heavily braked at intervals. For checks, facing threads are divided in sections taken alternately from two separate beams, the beams being alternately lightly and heavily tensioned. By introducing a variety of coloured threads and varying the periods of heavy tension, other effects may be produced. By using two full sets of facing threads differing in colour or material, and alternately heavily tensioned, a striped fabric having a continuous pile face is obtained. Vertical strips of differing colours may be introduced in the usual way. Each beam K, Fig. 3, is braked by a shoe J mounted on a weighted lever L. The brake is relieved at intervals by the action of a stepped cam N, which is fed forward by a ratchet-and-pawl O, P from a cam R.
Patent GB-116656-A (GB)
Title: Improvements relating to the Valve Adjustment of Internal-combustion Engines.
Inventor: HAGENS HUBERT
IPC: F01L1/20
Filed: 1917-12-14
Abstract: 116,656. Hagens, H. Dec. 14, 1917. Regulating.-An adjustable valve-head 4 has a nipple 5, which screws into the valve-stem 3, and a cylindrical portion 6 which slides on the outside of the stem and is screwed on its exterior to engage a nut 9. The cylindrical portion 6 is split along its length and is tapered at its lower end to engage a conical recess in the nut. When adjusting the head 4, the valve-stem is secured against rotation by inserting a hand-tool in holes 13. Specification 128,680 is referred to.
Patent GB-150159-A (GB)
Title: Improvements in or relating to tractors for agricultural machines
IPC: A01B69/06
Filed: 1919-07-26
Abstract: 150,159. Bell, W. July 26, 1919. Couplings for tractors.-Relates to couplings for connecting ploughs or other agricultural implements to tractors and adapted to allow the driver to vary the track of the plough &c. relatively to the tractor. The tractor frame 1 supports a handwheel 4 connected by gearing 5 to a worm 3 engaging with a transversely sliding rack 2 to which the plough is coupled. The rack may be replaced by a pivoted sector engaging with the worm and having a rearwardly extending coupling-arm.
Patent GB-1014287-A (GB)
Title: The production of an oxide coating on a substantially monocrystalline semi-conductorbody
IPC: H01L23/29
Filed: 1963-05-10
Abstract: An oxide coating containing doping material is produced on a body of semi-conductor material, such as silicon, by subjecting it to a temperature between 250 DEG  C. and 370 DEG  C. while exposed to the action of water vapour mixed with a substance which ionizes at that temperature to produce hydrogen and/or alkali ions and also comprises a doping material.  After the production of the oxide coating the body is heated to above 1000 DEG  C. to cause the doping material to diffuse from the coating into the semi-conductor material.  In one example semi-conductor wafers, mounted in a glass rack, are sealed in a glass ampoule with a quantity of boric acid and water and heated at 300 DEG  C. for 16 hours.  This results in a boron doped oxide coating and subsequent heat treatment at 1280 DEG  C. for 16 hours in a current of nitrogen causes the boron to diffuse into the semiconductor material.  An aqueous solution of hydrogen peroxide may be used instead of water.
Patent GB-1108483-A (GB)
Title: Device for rolling hoop
IPC: A63H33/02
Filed: 1965-05-04
Abstract: A device for rolling and controlling hoops comprises two substantially parallel rods which are connected together or continuous at each end, one of the ends of the device serving as a handle and the other being bent back, whereby the connecting or continuous end portion thereof forms a hoop engaging or controlling surface.
Patent GB-416529-A (GB)
Title: Improvements in or relating to medical irrigators or douches
IPC: A61M3/02
Filed: 1933-07-01
Abstract: 416,529. Medical irrigators. WHITBY, H. A. M., 5, Great Marlborough Street, London. July 1, 1933, No. 18715. [Class 81 (ii).] In medical irrigators comprising a flexible reservoir for irrigating liquid, a flexible tube 3 having a pinch-cock 4, and a nozzle 2, the reservoir 1 is in shape a hollow right triangular prism having a tetrahedral lower portion 1<a>, and is supported in use by a triangular frame 5 having upstanding hooks 7 engaged by eyelets 6 on the reservoir. The frame 5 has hinged to it a strip 9 carrying one of the hooks 7 and having a suspension loop 8. A strut 10 is hinged to the frame at 5a and may be hooked to the strip 9 at 11 to support the frame horizontally. The nozzle 2 is intended for colonic irrigation and comprises two tubes joined at right angles and provided respectively with a bulbous portion to receive the tube 3 and a rounded portion with circumferential perforations. The tube 3 engages over an ebonite or like nipple 12 secured to the lower end of the reservoir 1. When dismantled the reservoir can be folded flat, as by folding one side inwards about its median line.
Patent GB-473010-A (GB)
Title: Improvements in or relating to apparatus for the germination of seeds and the growth of seedlings
IPC: A01G31/02
Filed: 1936-07-06
Abstract: 473,010. Treatment of seeds and growing plants; germinating-appliances. LUND, H. H. B. July 6, 1936, No. 18747. [Class 6 (ii)] A corrugated tray for a soil-less cultivation cabinet, such as described in Specification 472,873, for the germination of seeds and the growth of seedlings has, in addition to apertures formed along the tops of the corrugations to permit of fairly rapid passage of liquid, one or more apertures in the valleys of the corrugations in order that liquid collecting in such valleys may escape slowly therefrom. In the tray shown comprising a framing 1 and a corrugated bottom plate 2, numerous apertures 3 are formed along the tops of the corrugations and one aperture 4 in each valley of the corrugations. The numbers, sizes and spacings of the apertures are given, the arrangement being such that the liquid caught in the corrugations escapes in a time not exceeding three hours.
Patent GB-374649-A (GB)
Title: Improvements in or connected with gas main or such like stoppers
IPC: F16L55/124
Filed: 1931-06-30
Abstract: 374,649. Stopping gas mains &c. PASS, E., Station Works, Denton, Lancashire. June 30, 1931, No. 18836. [Class 99 (ii).] In apparatus for stopping gas mains &c., a neck or boss integral with a collapsable stopper or diaphragm co-operates with a plunger-like device with expansible or adjustable packing to prevent leakage of gas. The plunger-like device in Fig. 1 comprises an inverted cupshaped element i with a threaded shank i<1> for the reception of a plate k which compresses the packing in a cylindrical housing a detachably secured to the main p. A sleeve b screwed into the upper end of the housing a and operated by a handle b<1> acts on the plunger-like device i, j, k. A central expander spindle c passing through the sleeve b is threaded at c<3> for the reception of a bracket f<2> to which the upper ends of bow springs d are pivoted and of a lock nut #<4>.The bottom c<2> of the spindle c fits loosely in a tube f, to the bottom of which the lower ends of the springs d are pivoted. The collapsable stopper e, which may be withdrawn into the housing a, has an integral neck or boss e<3> which co-operates with a cavity in the base of the element i and has a " T "-shaped recess in its tyre-like rim e<1> which houses the spring d. The sleeve b and the nuts f<2>, f<4> press the element i and the boss e<3> together.