baber/WOPTO huggingface dataset:
Patent GB-721550-A (GB)
Title: Improvements in or relating to gain control circuit arrangements
Inventor: DAVIES ERIC
IPC: H04N5/52
Filed: 1952-01-24
Abstract: 721,550. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 20, 1952 [Jan. 24, 1952], No. 2029/52. Classes 40 (5) and 40 (6). A wide-band amplifier, comprising a pentode valve in which the gain is controlled by variation of the potential of the suppressor grid 16, is linearized by negative feed-back derived from a load resistance 8 connected in circuit with the screen grid 7. A resistance 1 is provided in series with the signal grid, the feedback path comprising resistance 13 and blocking condenser 12. Compensation for the input capacity of the valve is provided by a condenser 11 shunting the resistance 1. The negative feed-back may alternatively be taken back to a preceding stage.
Patent GB-490935-A (GB)
Title: Improvements in or relating to the construction of shafts and rods
IPC: B29D99/00
Filed: 1937-01-23
Abstract: 490,935. Tool handles. DICKIE, JUN., W. B., and WILLIAMSON, F. E. Jan. 23, 1937, No. 2052. [Class 61 (i)] [Also in Groups XV and VI] Shafts for tools are made of non-metallic material reinforced by twisted metal rods, or by a sheath of metal deposited electrolytically or by spraying. Suitable non-metallic materials are cellulosic substances or asbestos mixed with paints or gums or other adhesives, caoutchouc and sulphur with fillers, caoutchouc mixed with glue or resin, synthetic resins, paper cloth and the like impregnated with such resins, ebonite, plastic wood. A hollow part A is provided to act as a grip and may be reinforced by the untwisted rods. According to the Provisional Specification, this part may be a separate metallic or non-metallic tube fitted on to the solid shaft ; also the abovementioned metal sheath may be a tube.
Patent GB-269823-A (GB)
Title: Improvements in or relating to grates
IPC: F23H13/08
Filed: 1927-01-24
Abstract: 269,823. Osten, E. Jan. 24, 1927. Grates.-A rotary grate 4 for gas generators is pyramidal in form with plane walls rising evenly from the base supported on the ash-pan 3. The grate is surmounted by a cap 5 and provided with arms 9 for breaking clinker.
Patent GB-1175482-A (GB)
Title: Reduction of Corticosteroid Side Effects
IPC: A61K31/00
Filed: 1968-01-15
Abstract: 1,175,482. Corticosteroid compositions. UNIMED Inc. 15 Jan., 1968 [9 March, 1967], No. 2078/68. Heading A5B. Corticosteroid compositions with reduced corticosteroid side effects comprise a corticosteroid and at least one compound selected from beta-(2- or 4- pyridyl) alkyl alkylamines and dialkylamines; 1-(2<SP>1</SP>- or 41-pyridyl)-2, 3- cis- or trans-dicarboxylic acid cyclobutanes; alphapicolinic acid dialkylamides; and non- toxic acid addition salts thereof. Examples of anti-inflammatory corticosteroids include cortisone, cortisone phosphate, hydrocortisone and the acetate and 21-sodium succinate thereof, prednisone, dexamethasone and the sodium phosphate salt thereof, ACTH, corticosterone, 11-dehydrocorticosterone, 11-desoxycorticosterone and aldosterone. Suitable salts include the hydrochloride, sulphate, tartrate, fumarate and gluconate. The compositions may be administered orally, parenterally or topically in the form of tablets, ampoules, drops, suspensions or ointments. Corticosteroid side effects are reduced by administering to a non-human animal simultaneously with, before or after administration of the corticosteroid at least one of the above-mentioned compounds.
Patent GB-547977-A (GB)
Title: Improvements relating to ventilators or windows or similar closures
IPC: B63B19/04
Filed: 1941-02-17
Abstract: 547,977. Ventilators ; windows. WINSER, B. D., and RICHARDS & SONS, Ltd., J. Feb. 17, 1941, No. 2154. [Classes 20 (iii) and 137] A ventilating device applicable to windows, roof-lights, and shields or visors for tanks comprises a plate which is supported at each of two opposite sides by a fixed support or supports within an opening by a moving support or supports including at least one universal joint, so that the plate may be adjusted and orientated relatively to the opening to present an opening to the interior of the desired size, and facing in the desired direction. As applied to the rooflight of a vehicle, the roof-light 1 has a central opening 2, and has secured to opposite edges brackets 3 the jaws of which are caused to close on the glass by screws 4, two links 5, 6 being pivoted on each side of the bracket and to links 8, 9 the ends of which are of bulbous shape, and form the socket of a ball and socket joint. Each ball 12 is integral with a shank 14 which passes through the plate 13 and is secured by a nut 15. A rubber sealing member 18 is secured to the edges of the plate 13. By extending one, or the other, or both sets of levers, and by swivelling the ventilator on the ball joints, it can be opened, and tilted in any desired direction. In Figs. 6 and 8 the ventilator or window 46 is supported by levers 32, 35 and diametrically opposed brackets 33 fixed to the wall. Each lever 35 comprises a tubular socket 36 fixed to a part 37 pivoted on a pin 38 secured to the lever 32. A spring 39 presses a plate 39A against a ball member 40 formed with three flats, and having a stem 41 fixed to a bracket 43 secured to the ventilator 46. As shown in Fig. 6, by relative movement of the levers 32, 35 and oscillation of the ball members 40 so that one or other of the flats is turned to make contact with a plate 39A, the ventilator may be moved to the desired position.
Patent GB-160999-A (GB)
Title: Improvements relating to building blocks
IPC: E04B2/02
Filed: 1920-01-23
Abstract: 160,999. Shortt, J. Jan. 23, 1920. Bricks, special shapes of. - Ventilating - bricks are formed with inclined ducts b so arranged that they communicate with ducts in the bricks above and below, and horizontal channels c which extend from end to end of the block. An horizontal channel d is also provided in each block communicating with the outer air and provides for access of air to one set of ducts.
Patent GB-317803-A (GB)
Title: Improvements in and relating to the separation of dry materials
IPC: B03B4/02
Filed: 1928-02-06
Abstract: 317,803. Appleyard, K. C., Holmes, C. W. H., Bramwell, I. L., and Birtley Iron Co., Ltd. Feb. 6, 1928. Pneumatic separating. - Relates to the dry separation of granular material, such as coal, agricultural or mineral products &c., by a process of the kind described in Specifications 207,094 and 255,924 in which the pervious table a, Fig. 1, over which the materials are passed is of substantial length in proportion to its width and comprises a preliminary separating area e and a concentrating area d at an angle toeach other, and consists in arranging the deck riffles in the area e at an acute angle with the tailing riffle g. The riffles in the concentrating area a may be at varying angles with the tailing riffle f, the angle preferably diminishing towards the delivery end n. The arrangement of riffles may be combined with the constructon of table described in Specification 317,802 and the arrangement and shape of the banking bars, tailing riffles, and deck riffles described in Specification 317,804 and may be incorporated in a table with a duplex concentrating area as described in Specification 207,094. Specifications 17561/05, 21063/07, 232,470, and 233,940 are referred to in the Provisional Specification.
Patent GB-714945-A (GB)
Title: Apparatus for supporting cakes of textile yarn
IPC: D01D10/04
Filed: 1952-01-28
Abstract: <PICT:0714945/IV(c)/1> <PICT:0714945/IV(c)/2> Tubular cakes of textile yarn are prepared for dyeing by radially expanding the inner peripheral surface of the cake equally along its longitudinal length by means of a perforated expansible mandrel which is spirally wound with overlapping longitudinal edges and which is resilient to enable the amount of overlap to be decreased so that the inner peripheral surfaces of the yarn cake are forced outwardly and a cake of uniform density is produced. Figs. 1 and 2 show a hollow perforated supporting spindle 10 through which dye liquor is passed via a perforated shell 21 and an expansible perforated mandrel 33 into a yarn cake 12.  The yarn is held between flanged annular end plates 17 and 26 so that as the threaded cap 37 is screwed down the inner ring 31 slides telescopically downwards upon shell 21 and the expansible mandrel 33 is forced to expand radially under the action of the frusto-conical rings 32 and 24, thus compressing the inner peripheral surface of the yarn cake equally along its longitudinal length.  The dye liquor is then passed into the inner perforated spindle 10 from a dye tank (not shown).  In a modification, Fig. 3 (not shown) the expansible mandrel is frusto-conical in shape.  Specification 650,269, is referred to.
Patent GB-161727-A (GB)
Title: Improvements in steering gear for ships
IPC: G05D1/02
Filed: 1920-01-26
Abstract: 161,727. MacGregor, R. Jan. 26, 1920. Steering-gear.-The steering-gear comprises in combination an electric motor, a reducing-gear, a liquid brake for the rudder post and a hunting- gear. When the motor runs continuously, a variable-speed and reversible hydraulic plant is inserted between the motor and reducing-gear. When the motor does not run continuously, a starting-panel of the contaction type which is controlled by a master switch operated by the steering-wheel is employed, hunting being effected by a follow-up switch operated from the rudder post. The continuously running motor 6, Figs. 1 and 2, is direct coupled to the hydraulic transmitter 7 which drives a worm 12 and in turn a worm-wheel 13 loose on a vertical shaft 14 to which it can be coupled by the clutch 17, 18. On the shaft 14 is a pinion 19 meshing with a toothed quadrant 20 fast on the rudder post 21. The post is enclosed in a liquid brake which may be of the kind described in Specification 14335/07. The control lever 37 of the motor is coupled to the steering and also to the hunting mechanism, the operation of which is effected by the lever 25 pivotally mounted on the rudder post. A tank 49 is provide for replenishing the hydraulic system. In a modification, a reversible motor 74, or two oppositely running motors, drive the reducing-gear direct, a master switch 56, Fig. 4, a follow-up switch 57, and an automatic starting and reversing panel 58 being used. When a second emergency motor 89 is used, a changeover switch 75, Fig. 5, is provided. The followup switch is actuated by bevel-gear 78, 79 from the rudder post and the master switch by bevelgearing 63, 64 from the wheel 55.
Patent GB-811479-A (GB)
Title: Improvements in or relating to high-tension barrier layer rectification units
IPC: H01L25/11
Filed: 1957-01-23
Abstract: 811,479. Plate rectifier assemblies. SIEMENSREINIGER-WERKE A.G. Jan. 23, 1957 [Jan. 23, 1956; Dec. 21, 1956], No. 2459/57. Class 37. A rectifier unit contains a stack of rectangular rectifier plates 5 inside a hollow cavity in an insulating member 1 of similar cross-section. The plates are held in place by a spring 6. In one embodiment shown in Figs. 1 and 2 the insulating member is closed at both ends but has one broad longitudinal slit 2 which widens at the upper end 4 and three narrower longitudinal slits 3. Metal contacts 7 and 8 are placed at the ends and access to them for external connection is via holes 9 and 10. The plates may be inserted through 4 and the spring holds them in contact with terminal block 8 and makes contact with terminal block 7. In another embodiment shown in Fig. 3 the insulating members consist of two U-shaped pieces 11 and 12 separated by two metallic blocks 13 and 14. These blocks sandwich the rectifying plates and the associated spring 6 and are of such a size that two longitudinal slits are formed between the U- shaped pieces. A hollow rivet 19 through holes 17 and 15 holds block 13 in place and a similar hollow rivet 20 holds block 14 in place. Electrical contact is made via these rivets. Further hollow rivets through the centres of the abovementioned rivets 19 and 20 may be used to attach the rectifying stacks to an insulating base plate 21 shown in Fig. 5. Washers or flanges on the second mentioned rivets preferably keep the base plate 21 a short distance from the stacks fastened thereto. Stiff wires 24 not touching the base plate may be used to connect adjacent stacks together and slits 27 may be made in the base plate between the points where the rivets attach to the base plate 21. The stacks may be connected either as in Fig. 6 or in Fig. 7. The longitudinal slits facilitate cooling and also allow the rectifier to be tapped at any point by placing a metal terminal plate between two rectifying elements.
Patent GB-455259-A (GB)
Title: Improvements in or relating to electric accumulators
IPC: H01M50/179
Filed: 1936-01-27
Abstract: 455,259. Batteries. YOULE, C. G., and BLAKEY, S., Millgate Works, Rotherham. Jan. 27, 1936, No. 2470. [Class 53] An accumulator is provided with a lid consisting of a part a of ebonite or other material to which is attached a part b consisting of a disc c of ebonite or other material having a moulded bushing d of rubber or other resilient material surrounding the edges of the disc c. The rubber d may also cover the upper surface of the disc c. In the case of an accumulator comprising two cells two separate members b may be attached to a single plate a which covers both cells. The disc c and bushing d may both be bevelled, and the part a may be cut away as shown at j<1> to enable the lid to be prised open by a tool. The parts a, b may be connected together by the terminals and by screws n which pass through a lead bar o embedded in the part a and which connects adjacent cells in series. The parts a, b may also be secured together by screws which engage the filling openings of the cells. Vent tubes f pass through the parts b of the lid and connect with horizontal passages extending from the middle of the part a to the circumference.
Patent GB-982425-A (GB)
Title: Automatic strainer
Inventor: ADAMS RENARD PAUL
IPC: B01D29/00
Filed: 1963-01-21
Abstract: 982,425. Filtersfor liquids. R. P. ADAMS CO. Inc. Jan. 21, 1963, No. 2473/63. Heading B1D. Unfiltered liquid entering at 14, Figs. 1 and 2, passes from an inlet chamber 13 into perforate tubes 34 whence it flows outwards, filtered, into a chamber 15. Filtrate leaves at 16, though some passes down a pipe 32 into a surge chamber 31, entrapping air around pipe 32. A hand-operated valve (not shown) may be manipulated to work a hydraulic piston and cylinder device 73, Fig. 2, using unfiltered liquid. The piston rod 69 of the device effects intermittent rotation, by a pawl and ratchet mechanism, of an L-shaped backwash drain 50, 47, Fig. 1, connected to a discharge at 60. When the drain is aligned with a filter tube, the entrapped air in surge chamber 31 expands and forces filtrate inwards through the relevant tube, along 50, 47 and out at 60 with entrained dirt.
Patent GB-230233-A (GB)
Title: Improvements relating to shelving
IPC: A47B47/02
Filed: 1924-01-30
Abstract: 230,233. Chatwood Safe Co., Ltd., and Bruckshaw, H. S. Jan. 30, 1924. Shelves.-The upright supports of a block of adjustable shelving are connected transversely and longitudinally by tie-bars which also support the shelves. Crescent-shaped grooves d at each end of the tie-bars c<1> engage the rims of corresponding apertures in opposing upright supports a. The shelves b have downturned edges fitting over the tie-bars. Back plates and transverse partition plates are provided, connected by clips to the uprights, which are also stiffened by rear diagonal stays. Tubular uprights are preferably used with feet e, and having at their upper ends rotatable plugs f screwed to engage sleeves g which are adjusted to bear against the ceiling.
Patent GB-395050-A (GB)
Title: Improvements in and relating to means for improving the properties of a ferromagnetic material
IPC: H01F1/00
Filed: 1932-01-27
Abstract: 395,050. Coils. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Jan. 27, 1932, No. 2518. Convention date, Jan. 27, 1931. Drawings to Specification. [Class 35.] Coils for filters or grid transformers in amplifiers or other purposes involving weak alternating currents are magnetized by direct current during operation by the alternating current to such an extent that the permeability is reduced by about a half, which is stated to decrease the hysteresis losses. The direct current may be maintained constant by a hydrogen-iron resistance. The direct current may circulate in the same winding as the alternating current or in a separate winding, but in either case the direct-current source must be shielded.from the alternating current by filters or chokes.
Patent GB-636949-A (GB)
Title: Arrangement for automatically changing a gramophone record
IPC: G11B17/16
Filed: 1947-01-28
Abstract: 636,949. Magazine gramophones. BOER, P. A. DE. Jan. 28, 1947, No. 2576. Convention date, Oct. 16, 1944. [Class 40 (ii)] In a magazine gramophone in which records are lowered axially on to the turntable, the pick-up arm movements and the record releasing mechanism are controlled by cams 12, 13 on a common shaft 14 having a ratchet wheel 5 which is rotated step by step by means of an eccentric cam 3 on the turntable spindle 2 and a coupling rod 4, a toothless part of the ratchet-wheel 5 being provided to effect interruption of drive to the shaft 14 during playing of a record. The record releasing mechanism is operated by a lever 26 under the control of the cam 12. During clockwise rotation of the lever 26 about a fixed point 27, the supports 32, 33, which are linked together by a member 31, Fig. 7, are withdrawn. At the same time, two separators 35, 36, which are also connected to the member 31, move inwardly to support all but the lowermost record of the stack 28, and thereby permit the lowermost record to fall to the turntable 1. The motions of the pick-up arm 16 are controlled by the cam 13, the upper face controlling the vertical movements by means of a rod 20, and the outer edge controlling the horizontal movements by means of a pin 23 on an arm 24. When the stylus reaches the inner part of the record the pin 23 presses against the notch 22 in the cam 13 and rotates it sufficiently for the rod 4 to re-engage the teeth of the ratchet-wheel 5 and initiate the control mechanism. Records are removed by withdrawing the mandrel 29. A fresh set of records is located in position by re-inserting the pointed end of the mandrel 29 and then replacing it the right way up so that the recessed end rests on the conical end of the turntable spindle 2. The Specification as open to inspection 'under Sect. 91 includes a modification in which the reserve records are supported on a notched pin which is in alignment with the axis of the turntable spindle. The arrangement is such that the records rest in an off-centre position on the notch but the lowermost records can be moved to bring its centre in line with the axis of the pin so as to permit release of the record on to the turntable. This subjectmatter does not appear in the Specification as accepted.
Patent GB-895238-A (GB)
Title: A cathode with sealing ring for electric discharge devices
IPC: H01J17/06
Filed: 1959-01-23
Abstract: 895,238. Cathode materials and processing. TESLA, NARODNI PODNIK. Jan. 23, 1959 [Jan. 31, 1958], No. 2594/59. Class 39 (1). A cathode 1 consists of a sintered admixture of quartz glass powder and an electrically conductive metal powder, the active end, from which the quartz has been removed, being provided with an emissive layer 4. The cathode is sintered together with a sealing ring 2 of quartz powder. As shown, the cathode is sealed into a mercury vapour quartz discharge valve and preferably comprises 10% by volume of molybdenum or tungsten powder and 90% quartz powder of the same grain size, e.g. 100-250Á. The sealing ring and cathode may be preformed by use of a binder which may be removed by heating to 350‹ C. in air, and are then placed together in a graphite form and sintered at 1800‹C. in a vacuum or a protective atmosphere. The quartz may be removed from the active end of the cathode by immersion in hydrofluoric acid. The spongy molybdenum layer which is left may be coated with an emissive paste by electrophoresis.
Patent GB-877109-A (GB)
Title: Process for the production of chromium hexacarbonyl
IPC: C01G37/00
Filed: 1958-01-27
Abstract: Chromium hexacarbonyl is produced by reacting chromium or an organic chromium compound in which the chromium is linked to oxygen, nitrogen, or sulphur with carbon monoxide at a temperature of 80-200 DEG C. and a pressure of 10-400 atmos. in the presence of ammonia or an amine in the liquid state, a metal which is more electropositive than chromium or a hydride or alkyl hydride of said metal, and a halogen.  The chromium may be in the form of a chromium-aluminium alloy.  Chromium compounds specified are chromium acetate, 2-ethylhexanoate, acetlyacetonate, and ethyl xanthogenate, and trichlorotripyridine chromium.  The carbon monoxide may be admixed with hydrogen.  Amines specified are pyridine, quinoline, tri-ethylamine, and tributylamine. Electro-positive metals specified are zinc, magnesium and aluminium.  Mixtures or alloys of two or more metals may be employed.  The halogen may be introduced in the free state, e.g. as iodine, or as a compound, e.g. as chloroform, carbon tetrachloride, aluminium tribromide, copper chlorocarbonyl, or iron, cobalt, or nickel halide.  It may alternatively be present in the chromium compound being reacted, e.g. trichloro tripyridine chromium. 0.1-2 molar per cent. of halogen or halogen compound may be employed. An inert liquid, e.g. toluene, isoctane, diethyl ether, a ketone or methyl alcohol may be present.  Preformed chromium hexacarbonyl or another metal carbonyl, e.g. dicobalt octacarbonyl, or a metal salt, e.g. cobalt acetate, cobalt iodide, or mercuric chloride, capable of convertion into another metal carbonyl may be present as an accelerator.  In a batch process using an autoclave, chromium hexacarbonyl may be recovered from the reaction product by steam distillation, optionally in the presence of added acid, e.g. hydrochloric acid to prevent foaming by extraction with diethyl ether, chloroform, carbon tetrachloride, or a hydrocarbon by subliming at 80-110 DEG C. in the presence of nitrogen, hydrogen, or carbon monoxide without separating the liquid phase, or by subliming at 75 DEG C. and 15 m.m. Hg after cooling to -40 DEG C. and separating the liquid phase.  In a continuous process a solution or suspension may be passed down a reaction tower in countercurrent to carbon monoxide under pressure, the product gas being passed off overhead, cooled to remove chromium hexacarbonyl, and recycled after the addition of further carbon monoxide.  Examples are given.