baber/WOPTO huggingface dataset:
Patent GB-176240-A (GB)
Title: Improvements in or relating to sharpening or grinding devices for razor blades and the like
IPC: B24D15/08
Filed: 1921-02-15
Abstract: 176,240. B³chner Werke Akt.-Ges., and Feist, E. Feb. 15, 1921. Stropping - - apparatus. - A blade is sharpened either by oscillating it so as to contact simultaneously with two of a set of four revolving rollers, or else by contact with two gapped rollers, the blade being turned through 180‹ during part of the revolution of the rollers. The blade is reciprocated while in contact with the rollers. The blade o, Figs. 1 and 2, is located on pins s of a holder m provided with a detent p secured in position by a catch q which engages a groove in one of the pins s. The blade-holder m is journaled in a housing e and is rocked and reciprocated by a yoke l which engages helical grooves n in heads k of rollers a, b. A housing f is hinged to the housing e and has rotatably mounted in it rollers c, d. The rollers a, b, c, d, are interconnected by gears i and are rotated by a handle h. A modification comprises two gapped rollers 3, Figs. 6 and 10, and a blade-holder 14 which is reciprocated by the engagement of a curved end 18, of a guide-piece 16, engaging a helical groove 15 in one of the roller-heads. Teeth 10 on this head engage teeth 17 on the guide-piece 16, when the gapped parts of the rollers 3 are adjacent to the blade, and turn the holder through 180‹ so as to present the opposite sides of the edges of the blade 12 to the rollers. The requisite pressure between the blade and the rollers is obtained by locating the axis of the blade-holder slightly below the common tangent-plane of the rollers.
Patent GB-313143-A (GB)
Title: Improvements in and relating to the generation of electric oscillations
IPC: G10H1/16
Filed: 1929-02-16
Abstract: 313,143. Compagnie des Lampes. June 8, 1928, [Convention date]. Electrically - vibrated instruments. -Relates to means for obtaining pulsating currents of controllable frequency from a source of steady D.C. or A.O. for use, for example, in producing musical sounds. According to one arrangement, Fig. 2, a telephone or loud speaker T is connected in the circuit of a condenser C shunted across a discharge device L, the condenser being charged through a variable resistance R from supply terminals A, B and discharging periodically when its voltage reaches the breakdown voltage of the device L. The frequency of discharge is varied by variation of the capacity of the condenser C, and the magnitude of the resistance R. Further control enabling amplitude to be varied independently of frequency is provided by a variable condenser C1 shunted across the resistance R, and by an inductance S. In alternative arrangement, the telephone or loud speaker T is connected in series with the device L as shown in Fig. 4. In this arrangement a variable resistance Q and shunt condenser are connected across the device T for varying the amplitude of the current passing through the sound-producing instrument. Other arrangements are described in which a plurality of circuits for producing pulsating currents of different frequencies are connected to one or more sound-producing instruments. The arrangements described are also stated to be applicable to operating tuning forks.
Patent GB-895217-A (GB)
Title: Improvements in or relating to signal storage arrangements
Inventor: FIRMIN JERVOIS CAMPBELL
IPC: H01J31/18
Filed: 1960-02-15
Abstract: 895,217. Cathode-ray storage tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Dec. 13, 1960 [Feb. 15, 1960], No. 5294/60. Class 39 (1). A direct view storage arrangement in which the stored information is representative of only either ' signal or no-signal' conditions includes an electric discharge tube 1 comprising a metallized fluorescent screen 2 and writing and flood guns 5 and 6 respectively. Disposed between the electron guns and the screen is a storage electrode 3 comprising a metallic grid or mesh with a layer of insulating material deposited on the side remote from the screen. Potentiometer 10, energized by battery 8, provides, relative to the earthed flood gun cathode 6, a high potential on the screen 2, a lower potential on the grid 4, and a high negative potential on the cathode of the signal gun 5. A further potentiometer 9, energized by the battery 7, provides a potential to the storage electrode 3. In operation, the insulating layer on the storage electrode 3 is first stabilized at zero potential, and the grid 4 is then raised slowly to a potential slightly in excess of the first cross-over point. The writing beam is then switched on and under this condition any part of the electrode struck by the writing beam will be stabilized, by collection of electrons from the flood beam, at the potential of the storage grid even when the writing beam is switched off, and the flood beam will only then pass through these regions and produce on the screen a pattern of the written information. Erasure of the stored charge pattern is effected either by quickly increasing the potential of the storage grid so that all regions of the insulating layer rise in potential above the first cross-over point due to capacitive coupling, and then quickly reducing the potential to zero, or merely by decreasing the storage grid potential to zero; the layer then being stabilized at the flood gun cathode potential. A further grid 4 is provided for collecting gas ions.
Patent GB-215482-A (GB)
Title: Improvements in and relating to heat exchange devices
IPC: F28D9/00
Filed: 1923-02-26
Abstract: 215,482. Johns-Manville, Inc., Mc- Clure, B. C., and McMillan, L. B. Feb. 26, 1923. Plate apparatus; surfaces of special materials. -Within a casing 12 a series of similar partitions is arranged, each of which may comprise a. transverse member a, a narrow longitudinal member b, and a smaller transverse member c arranged relatively as shown in Fig. 5. Each partition is differently oriented in succession about an axis of the casing and the interior is thus divided into two series of like cells with alternate cells connected, to form two distinct flow paths for the heating and heated fluids. The casing and the partitions may be made of material of low thermal conductivity.
Patent GB-1190856-A (GB)
Title: Self-Propelled Crawling Toy
IPC: A63H17/00
Filed: 1968-02-02
Abstract: 1,190,856. Toy crawling vehicle. MATTEL, Inc. 2 Feb., 1968 [3 Feb., 1967], No. 5544/68. Heading A6S. A self-propelled crawling toy comprises a space-vnicle 10 having a body 12 with an electric motor mounted therein to drive an axle 16, on each end of which is a hub 38 having extending from it a plurality of spokes 60 of sufficient length that they may extend forward of the body. On rotation of the axle the spokes enable obstacles in the vehicle's path to be sunmounted. The spokes are mounted so that they are staggered. The toy has a tail-piece 222 of which the tip forms a third point of contact with the surface. The vehicle may be driven by an electric motor through a gear and clutch train, such that the vehicle's forward motion may be halted and a winch 68 and cable 72 set into operation. On the cable being wound in to a predetermined extent, the clutch automatically re-engages the drive or disengages the winch. Each hub may be equipped with clutch means so that, if the spokes become jammed in an obstable, the drive is automatically disengaged. The vehicle may be equipped with a simulated cockpit 250 and control panel 252.
Patent GB-586003-A (GB)
Title: Method of making diaphragms wholly or partly of metal
IPC: G03F1/20
Filed: 1944-03-25
Abstract: 586,003. Etching. KODAK, Ltd., and GRESHAM, D. C. March 25, 1944, No. 5569. [Class 100 (ii)] [Also in Groups XX and XXXVI] Apertured diaphragms comprising a preferably metal foil on a sheet metal base are made by forming stencils on both sides of the base where the holes are required, depositing the foil on the parts not covered by the stencils, removing the latter, and electrolytically or chemically etching the base until the desired holes are formed. The foil may be of nickel and the base of copper. Chemical etching can be effected by ferric chloride solution or dilute nitric acid. The stencil is preferably applied photographically using gum bichromate or silver salt emulsion, or the process of Specification 573,798, [Group XX], the apertures in the positives on both sides of the base being in register and that on the reverse side is made larger. Fig. 4D shows a configuration of slotted graticule forming one of several produced simultaneously on a single sheet by the following method. Slot 26 is drawn as a thick black line on a white lacquered metal background 25 on which the perimeter 27 is also represented as a black line, a reduced positive is made, and from it two negative contact prints are obtained, one, the wide-slot negative, having its slot extended by Indian ink and its perimeter 27 " perforated " with white ink, and then both negatives are photographed to give two accurate final-size positives. One positive is reversed to give a mirror-image, and a sheet of several images of both positives is obtained by a step-and-repeat camera, positive. glass transparencies being made therefrom. The sheets containing the two sets of positives are then registered and the rim 17, 171 of the narrowslot one 12 is detached and glued in place on the wide slot one 13 so as to form a frame, Fig. 5C, in which the chemically-cleaned copper base 16 is inserted between the two positives, the copper plate being previously given on both faces, a layer of resin covered by a sensitized layer, particulars of which are given. Both faces are then exposed to light, the sensitized layer and resin are treated with water and lactic acid to-remove all but the resin stencils, and the plate anodically cleaned, particulars of these processes also being given. A nickel foil layer is then electrolytically deposited, the resin stencil is removed, and copper base etched anodically to make the apertures. Particulars of these processes also are given. The perforations between the graticules enable their easy removal from the sheet individually. The formation of the negatives on the copper is effected in a vacuum frame, Fig. 5B, comprising frames 18, 18<1> hinged together, frame 181 carrying a rubber bead 21 stuck to a rubber apron 22 on which a celluloseacetate sheet 23 is stuck, this sheet together with a glass sheet 20 on frame 18 constituting a sealed enclosure which can be exhausted by means of a tube 24. Specification 585,035, [Group XX], also is referred to.
Patent GB-800147-A (GB)
Title: Containers made of wound sheet metal
IPC: B65D8/04
Filed: 1957-02-19
Abstract: 800,147. Portable containers. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Feb. 19, 1957 [March 21, 1956 ; April 24, 1956], No. 5575/57. Class 66. [Also in Group XXI] To make a metal container fluid tight, a metal sheet 1, which is to be wound helically to form a tube, has one or more grooves 3 formed therein into which thread-like plastic material is introduced before winding. The plastic material 4 may be copper, lead or soft alloy wires, threads of rubber or synthetic resins, braids of textile or other non-hygroscopic materials impregnated with suitable substances, A liquid which on solidifying leaves a threadlike plastic material may also be used. The wound sheet 1 may be secured in a groove 5 in a base 2 by applying pressure to the circular lip as in Specification 764,034. The case is then placed in a mould and a high pressure applied to compress the packing 4 and form a right joint. In Fig. 5, the outer part of the base is shortened to form a throat with the inturned end of the tube. Into this throat a deformable packing ring 8 is forced. A collar 7 may be placed around the base 2 as in Specification 786,627 [Group XXI]. Means as described in Specification 764,034 may be used to tighten the turned end of the tube in the groove 5.
Patent GB-343745-A (GB)
Title: Improvements in or relating to iron alloys
IPC: C22C37/10
Filed: 1930-02-19
Abstract: An improved iron alloy resistant to corrosion by mineral acids is prepared from cast iron containing not less than 3 per cent of carbon and 1,5 per cent of silicon, by adding 0,5-2 per cent of copper and 0,25-0,75 per cent of chromium, the amount of chromium not exceeding and preferably less than the copper. Ordinarily the iron contains 3-3,5 per cent of carbon and 1,5-3 per cent of silicon together with the elements usually present in cast iron such as manganese, phosphorus, sulphur. Small percentages of titanium, vanadium, or other such alloying metals may also be present, such percentages being negligible compared with those of copper and chromium.  The chromium in a form such as ferro-chrome containing 30 per cent of chromium and the copper may be added in the ladle or in the furnace or cupola. In an example the alloy contains 2,25 per cent of silicon, 3,35 per cent of carbon, 0,70 per cent of copper, 0,43 per cent of chromium, 0,65 per cent of phosphorus, 0,70 per cent of manganese, 0,06 per cent of sulphur.
Patent GB-1178484-A (GB)
Title: Material Distributing System
IPC: D01G23/08
Filed: 1967-02-06
Abstract: 1,178,484. Pneumatic conveyers. FIBER CONTROLS CORP. 6 Feb., 1967 [29 June, 1966], No. 5667/67. Heading B8A. [Also in Divisions D1 and G3] The material distributing control system described in Specification 1,178,483 is applied to an arrangement in which a number of stations are supplied from a plurality of sources, with means for selecting which source supplies which station. In Fig. 1 (not shown), there are two sources and five stations; four are always supplied from their respective nearest station while the centre one can be supplied from either by selector switch or plug, and by interposing a vane (166, 168) in the vacuum system, either manually or electromagnetically. In Fig. 2 (not shown), four stations are supplied from two sources in any desired combination by operation of a fiveposition selector switch and appropriate vanes.
Patent GB-306706-A (GB)
Title: Improvements in or relating to machines for delivering liquids
IPC: G07F13/02
Filed: 1928-02-23
Abstract: 306,706. Tupper, A. C. Feb. 23, 1928. Moving-chamber apparatus; varying quantity measured in.-In machines for delivering measured quantities of milk, acid, or other liquid which may corrode the measuring apparatus, a rotary measuring chamber 3 remains empty until rotated-e.g. by a coin-freed apparatus-to bring ports 7, 8 opposite liquid and air pipes 7*, 8*; a spring then returns the chamber so that further ports communicate with a delivery pipe 9* and the air pipe 8*, a dash-pot 11 attached to a ratchet member 13 on the operating shaft ensuring that sufficient time is allowed for the chamber to fill; an additional dash-pot may replace the spring and act in the opposite direction. The air ports are, and the liquid ports may be, elongated so that only a small movement is necessary to fill the chamber. The capacity of the chamber 3 may be varied by a plug 4 which has a screw thread 5 and lock nut 6.
Patent GB-1127731-A (GB)
Title: Hydraulic device
Inventor: MONTGOMERIE GEORGE ALAN
IPC: G05D16/06
Filed: 1965-02-10
Abstract: 1,127,731. Pistons; valves. SERCK R & D Ltd. 1 Feb., 1966 [10 Feb., 1965], No.5731/65. Headings F2T and F2V. [Also in Division F1] An hydraulic device comprises a vessel divided into two chambers by an internal bellows constituted by a stack of pre-stressed metal washers at least some of which are dished and at least some of which are resilient. The device may form part of an hydraulic ram, Fig. 3, in which a cylinder 30 is divided into two chambers by a bellows of pre-compressed washers 31 closed at one end by a piston 32 and at the other end by a closure member 34. The piston is spaced from the cylinder by four peripheral projections 32a on the piston so that the bellows acts as a seal between the cylinder and the piston and also provides a spring force resisting movement of the piston in response to fluid supplied through a port 37. In a second embodiment the device is incorporated in a valve, Fig. 4, for maintaining a substantially constant flow rate therethrough. The valve comprises a vessel 42 divided into two chambers by a bellows constituted by a stack of pre-loaded metal washers 43. The bellows is responsive to the pressure difference between the two chambers and has an end-plate 44 carrying a control element which coacts with a sleeve 48 to control the flow from the inner chamber to an outlet 49. The outer chamber is subjected to the static inlet pressure through a passage 41 and the inner chamber is subjected to the pressure after throttling by a variable restrictor 46. If the flow increases the throttled pressure in the inner chamber decreases and the bellows contracts to reduce the flow from the inner chamber into the sleeve 48. The compression of the bellows may be adjusted by screws 50.
Patent GB-554712-A (GB)
Title: Improvements in or relating to regulating arrangements for electrical circuits
IPC: G05F1/33
Filed: 1941-10-28
Abstract: 554,712. Automatic regulation; converting. HARMER, H. A. Oct. 28, 1941, No. 5810/43. Divided out of 554,467. Drawings to Specification. [Classes 38 (ii) and 38 (iv)] In an arrangement for producing a closely constant voltage regulation independent of load or of supply voltage changes and comprising an inductance in series with an iron cored saturating inductance in parallel with a capacitative reactance the supply source is D.C. through a vibrating relay. In arrangements such as are described in Specifications 493,362, 515,207, 521,314 and 524,565 a vibrating reed is adapted to connect alternately to a D.C. source, such as a battery, two circuits wound on common cores and constituting the inductances referred to. The regulated output may be converted to D.C. A baretter may be connected in series with the source or in each of the circuits, and a condenser may be inshunt with each baretter. The condenser first referred to may be connected in parallel with a secondary winding on the inductance or in other equivalent connections. A condenser may be included for power factor correction.
Patent GB-701726-A (GB)
Title: Improvements in or relating to means for preventing extension of the laddering of stockings for personal wear
IPC: A41H27/00
Filed: 1952-03-06
Abstract: Means for preventing the extension of the laddering of stockings for personal wear of silk, nylon and like delicate materials, consist of a pencil-like piece or strip of suitable material, e.g. paper or cardboard, formed with a head of a substance which is normally hard and dry, but when moistened becomes of an adhesive or adherent consistency, so that, when rubbed over the broken part of a stocking, usually during wear, it will prevent an extension of the laddering. The head may be flavoured.
Patent GB-397553-A (GB)
Title: Acid pickling baths
IPC: C23G1/06
Filed: 1932-02-26
Abstract: A long-chain alkyl quaternary ammonium compound, i.e. a compound containing a quaternary ammonium grouping and an alkyl radical containing not less than 6 carbon atoms, or a solution of such a compound in hydrochloric or sulphuric acid is added to sulphuric acid to inhibit its action on metals.  Substances referred to are octadecyl-, dodecyl-, and cetylpyridinium bromides, and cetyl- and octadecyltrimethylammonium bromides.ALSO:A long chain alkyl quaternary ammonium compound, i.e. a compound containing a quaternary ammonium grouping and an alkyl radical containing not less than 6 carbon atoms, or a solution of such a compound in hydrochloric or sulphuric acid is added to acid pickling baths as an inhibitor. Substances referred to are octadecyl-, dodecyl-, and cetylpyridinium bromides, and cetyl- and octadecyltrimethylammonium bromides.
Patent GB-1489973-A (GB)
Title: Oil-fired space heating appliances
IPC: F24C5/14
Filed: 1976-05-11
Abstract: 1489973 Burners; lighters VALOR HEATING Ltd 11 May 1976 [12 Feb 1975] 5875/75 Headings F4F and F4T An oil-fired space heater comprises a radiant burner 1 having inner and outer perforated concentric sleeves 3, 4, surrounded by an imperforate concentric tube 5, and a wick 8 guided between tubes 6, 7, embodied in an oil tank, a manually-operable electric igniter 2 comprising lever means 11, 19, for raising burner 1 from an operative to an inoperative position wherein the wick 8 is exposed, an igniter head 20 movable to an operative position in close proximity with the wick when burner 1 is in the inoperative position, the lever means and the igniter head support being operated in synchronism. In operation, a knob 18 rotates a rod 15 against the action of a torsion spring 23, levers 11, 19, pivot burner 1 about a fixed bracket 10 into the Fig. 2 position and the circuit from a battery to contacts 25, 27, is closed, so that the filament 29 ignites wick 8. The burner is returned to the Fig. 1 position on release of knob 18, by spring 23.
Patent GB-827182-A (GB)
Title: Process for the manufacture of polyoxygenated dehydro-steroids
IPC: C12P33/00
Filed: 1956-02-27
Abstract: Steroids containing double bonds in the 1 : 2-and 4 : 5-positions, and hydroxyl groups in the 17 and/or 21-positions and/or a keto or hydroxyl group in the 11-position are prepared by subjecting a steroid, which is saturated in the 1 : 2-position and contains at least a methylene group at position 11 or hydrogen at position 17 or a methyl group at position 21, or a combination of two or three of these groupings, in one operation to the action of enzymes from aerobic cultures of the dehydrogenating fungi of the species Calonectria decora, Ophiobolus heterostrophus, O. miyabeanus, Alternaria passiflorae, or Didymella lycopersici, and of enzymes of the oxygenating fungi of the genera Rhizopus, Mucor, Aspergillus, Penicillium, Curvularia, Cunninghamella, Spondylocladium, or Streptomyces, or of the species Trichothecium roseum, Leptosphaeria maculans, Cucurbitaria laburni, Acrospeira levis, Lophotrichus hartinii, Melanospora parasitica, Thielavia terricola, or O. herpotrichus or Sclerotinia fructicola, and if required subsequently converting the products into esters, ethers, thioethers, ketals or thioketals.  Examples detail the preparation of 1-dehydro-cortexone, 1 - dehydro - corticosterone, 1 - dehydro - aldosterone, 1 - dehydro - 17a ,21 - dihydroxyprogesterone, 1 - dehydrocortisone, 1 - dehydro - hydrocortisone, and 1-dehydro-9a -fluoro-hydrocortisone 21-acetate. Other D 1,4-pregnadienes bearing oxygen substituents in positions 3, 11, 17, 18, 20 and 21 are listed as products, and the process is stated to be applicable to derivatives of spirostanes, furostanes, cholanes, androstanes, pregnanes and their allo epimers. Specifications 723,881, 724,094, 727,811, 732,364, 732,686, 741,477, 749,414, 749,943, 805,602, 806,141, 809,911, 811,845, 816,922 and 825,210 are referred to.
Patent GB-383830-A (GB)
Title: Improvements in and relating to sculling and rowing apparatus
IPC: A63B69/06
Filed: 1932-02-29
Abstract: 383,830. Rowing-apparatus. SAUERBIER, F., 4, Forsterstrasse, Berlin. Feb. 29, 1932, No. 6068. Convention date, Feb. 28, 1931. [Class 132 (i).] In rowing-apparatus of the type comprising a frame 1, Fig. 1, carrying a sliding seat 4, foot-rest 6, and outriggers 7, and mounted fore-and-aft on rockers 2, the length of the oars 10 is adjustable, the rockers have helical buffer springs 3 at their ends, and the resistance is provided by an adjustable spring. The oars 10 are formed of two parts, the part mounted on the pivot block being provided with a pin 10<1> on which the other part is adapted to turn. The length of the oar is adjusted by interposing distance sleeves 11 of different widths. The pivot block is a cylinder 9, Fig. 4, mounted in a fork at the outer end of the outrigger 7. A helical spring 12 is connected to two discs 13, one of which is secured to the oar and the other is adjustably connected to the cylinder by a stop pin 16. A through bolt 15 traverses both discs. The Specification as open to inspection under Sect. 91 comprises also a form of apparatus which stands rigidly on the ground. This subject-matter does not appear in the Specification as accepted.