baber/WOPTO huggingface dataset:
Patent GB-505545-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K23/06
Filed: 1938-11-14
Abstract: 505,545. Control of D.C. motors. ERCOLE MARELLI & CIE SOC. ANON. Nov. 14, 1938, No. 33098. Convention date, June 8. [Class 35] [Also in Group XXXVII] Polepieces ; non-regenerative braking.-A motor has the stator poles slotted so that the reluctance of the magnetic circuit is different for different positions of the armature and a field winding is provided for urging the armature to a lower reluctance position when the armature is de-energized, the winding being additional to the shunt winding for normal running. In the form shown in Fig. 1, the armature is in the lower reluctance, position due to the armature and stator teeth being in alignment. For normal operation the winding a, Fig. 2, assists the shunt winding b but remains across the supply during braking when the switch d is thrown downwards to short circuit the armature c.
Patent GB-447420-A (GB)
Title: Improvements in and relating to the production of anodic coatings on aluminium or aluminium alloys
IPC: C25D11/06
Filed: 1934-11-17
Abstract: 447,420. Electrolytic sur ace treatment of aluminium and its alloys. GOWER, C. H. R., and BOWEN, E. WINDSOR-, Thames Factory, Rainville Road, Hammersmith, London. Nov. 17, 1934, No. 33156. [Class 41] The articles are subjected to anodic treatment in a bath containing acetic acid and a relatively small proportion of phosphoric and sulphuric acids with or without boric acid, the bath being maintained in motion ; the metal is thereby cleaned and provided with a thin and even film of oxide which may then be thickened by further anodic treatment in usual baths. Suitable proportions are 10-15 per cent by volume of acetic acid, 2-2¢ per cent of phosphoric acid and 2¢-3 per cent of sulphuric acid together with ¢-1 oz. per gallon of boric acid. With current density 3-4 amps. per sq. ft. and temperature 80-90‹ F. the treatment is completed in 1-5 minutes. A coating sufficient for protective purposes may be obtained by extended treatment in the same bath or by further anodic treatment in a chromic acid, oxalic acid or other bath. Specifications 395,390, 396,743, 412,193, and 447,421 are referred to,
Patent GB-320548-A (GB)
Title: Improvements in or relating to lawn mowers and other analogous machines
IPC: A01D34/42
Filed: 1928-11-13
Abstract: 320,548. Jobson, J. E. V., and Qualcast, Ltd. Nov. 13, 1928. Lawn-mowers.-The delivery plate a of a lawn-mower, edge trimmer, or similar machine is provided at one or both sides with a side member b and is attached behind the rotary cutter by depending lugs c fitting into slots. The lugs c may be formed integral with a strengthening bar d riveted to the plate a.
Patent GB-740022-A (GB)
Title: Improvements relating to the preparation of phenols and cycloalkanones
Filed: 1953-11-30
Abstract: Phenols and cycloalkanones are prepared by oxidizing cycloalkyl derivatives of aromatic hydrocarbons with gases containing free oxygen at a temperature of 125-140 DEG  C. to form hydroperoxides and splitting these hydroperoxides in an acid medium.  Starting materials in the process are phenyl cyclohexane, phenyl cycloheptane, tolyl cyclohexane, 1-phenyl - 4 - methyl cyclohexane, 1 - (41 - ethyl - phenyl) - 4 - methyl - cyclohexane, dicyclohexyl benzenes and dicyclohexyl naphthalenes.  Using the temperature range cited, about 20 per cent of hydroperoxide is formed in 3 hours, substantially free from by-products.  The oxidation may be carried out at atmospheric or superatmospheric pressure, and in the presence of finely-divided metal catalysts such as silver, platinum, and copper, supported on kieselguhr.  The resultant solution of hydroperoxide in hydrocarbon is concentrated in a film-evaporator to give a 50-60 per cent solution, which is mixed with dilute sulphuric acid (10-25 per cent) and heated by passing steam which also removes the volatile products. The phenols are separated from the reaction products by solution in alkali metal hydroxide solution and then acidified and distilled. The cycloalkanones are also purified by distillation.  The process can be operated continuously.  In the example phenylcyclohexane is treated by the process of the invention to given phenol and cyclohexanone. Specification 681,613 is referred to.
Patent GB-1463227-A (GB)
Title: Eyeshield filter for welders
IPC: B29D11/00
Filed: 1975-08-08
Abstract: 1463227 Eyeshield filters DEUTSCHE SPEZIALGLAS A G 8 Aug 1975 [23 Aug 1974] 33261/75 Heading G2J A filter for a welder's eye-shield comprises two plastics panes 10, 12. Connected around their peripheries 18 and separated by an air-gap 16, the pane 10 which is nearest the eye when in use having an infrared reflecting layer 14 on its inner surface. The panes 10, 14 may be planar or curved. The pane 10 may be recessed to receive the layer 14 when the panes have the same curvature. The layer 14 may be gola or copper.
Patent GB-789672-A (GB)
Title: Suspension means for pendulum and similar oscillatory masses and apparatus incorporating said means
IPC: H01H51/32
Filed: 1954-11-17
Abstract: 789,672. Hinges and pivots. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and LOCKETT, L. J. Nov. 3, 1955 [Nov. 17, 1954], No. 33278/54. Class 65(2) [Also in Group XXXVII] Suspension means for a pendulum or other oscillatory mass comprises a cylinder with straps wrapped completely or partly round its surface, at least one end of each strap being secured to a support member on which the the cylinder is confined to roll in a direction at right angles to its axis  so that the straps are wound on and off the cylinder. The oscillatory mass may be formed by or. attached to the cylinder and the suspension means may be used in a code transmitter. A steel cylinder 4 carrying compound pendulum weights 9 has two beryllium-copper straps 10 wrapped around it with their ends 11 anchored to a non-magnetic table 1 and their ends 12 resiliently secured to the table 1 and tensioned by a spring 22. Extensions 5 of the cylinder 4 engage stops 17 in side brackets 15 to limit its rolling movement. When the cylinder is in its equilibrium position (i.e. with pendulum vertical) electric contacts 20, 21 are closed and cause an electromagnet 14 to be energized so attracting the cylinder which rolls and causes a projection 6 thereof to open the contacts 20, 21. The cylinder is then returned towards the equilibrum position by the weights 9. The surface 1 may be concave or replaced by rails. The straps 10 may be made of nylon or multi-strand wire.
Patent GB-348097-A (GB)
Title: An improved method of and means for controlling the fuel injection in diesel engines
IPC: F02M59/26
Filed: 1929-11-01
Abstract: 348,097. Reciprocating pumps. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. Nov. 1, 1929, No. 33302. Convention date, Nov. 8, 1928. Void [Published under Sect. 91 of the Acts]. [Class 102 (i).] Regulating delivery by opening and closing byepasses and suction valves.-In a fuel pump for Diesel engines the begining and end of the injection period are controlled by two inclined edges 7, 8 formed in a recess 10 cut in the pump piston 1, and controlling the opening and closing of the inlet port 4. During the delivery stroke of the piston, the fuel in the chamber 3 returns through the port 4 until the edge 7 closes it. Injection then begins, and continues until the edge 8 opens the port to the recess 10, which communicates with the chamber 3. By turning the piston by means of a lever 11, the beginning and duration of the injection are simultaneously varied. In the form shown in Fig. 2, the recess 12 in the piston communicates with the chamber 3 by a passage 13, and has a lower inclined edge 7 controlling the inlet port 4, and an upper edge 8 controlling a return port 14. During the first portion of the delivery stroke, the fuel returns from the chamber 3 to the port 4 until the edge 7 closes the latter. Injection then begins, and continues until the edge 8 uncovers the port 14. Rotation of the piston varies both the beginning and duration of the injection. In the form shown in Fig. 3, the upper edge controlling the inlet port 4 is only partly inclined, so that angular adjustment of the piston for varying the duration of injection by means of the lower edge 8 does not affect the beginning of injection until the inclined portion of the edge 7 comes into action.
Patent GB-627599-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B61B10/02
Filed: 1946-11-11
Abstract: 627,599. Rope railways. KING, Ltd., G. W., and KING, D. M. Nov. 11, 1946, No. 33507. [Class 104(ii)] In a rope railway system having branches and wherein a driving chain carries abutments engaging the cars 11, an auxiliary endless-chain drive is provided at the junction of the branch track 12 with the main track 10 to propel a car either towards or from the main track 10 and so away from a fouling section. The auxiliary drive may be brought into operation when the junction is set for the branch track. An auxiliary drive chain 13 with guides 16, 17 is driven from the main driving chain by an endless chain 20 through disconnectible gearing and carries driving abutments 18. These abutments are pivoted to the chain 13 and can be kept operative by a guide 19, Fig. 2, which can be set forward to hold up the abutments or retracted to allow the abutments to pivot, either by the track switches, by hand, or by the pressure of bars on the branch track. The gearing between the chains 20, 13 may be disconnected when the track switches are set for the through main line.
Patent GB-1113032-A (GB)
Title: Improvements in buffer elements or fenders for protecting ships and mooring installations
IPC: E02B3/26
Filed: 1965-08-06
Abstract: 1,113,032. Coated fender. GEORGE ANGUS & CO., Ltd. 6 Aug., 1965 [10 Sept., 1964], No. 33752/65. Heading B2K. [Also in Division B7] A marine fender comprises a rigid supporting plate or strip 3a, a buffer part I secured on the plate or strip (openings 6 in the plate or strip providing keying points) and formed of a cellular resilient plastics material, preferably foamed polyurethane), having partly (e.g. the core) a closed cell structure and partly (e.g. the outer portions) an open cell structure, and a protective layer 2 of homogeneous resilient material (e.g. sprayed-on polyurethane) encasing the buffer part and the plate or strip.
Patent GB-394879-A (GB)
Title: An improved poison for rats, and other vermin
IPC: A01N59/26
Filed: 1932-11-30
Abstract: A liquid poison for rats and other vermin is prepared by melting stick phosphorus in boiling water and gradually adding white flour and sugar with constant stirring until cold.  A known preparation containing phosphorus, talc, water, rye flour and sugar is referred to.
Patent GB-1032816-A (GB)
Title: Improvements in power driven pruning saws
Inventor: GILES ALONZO ROY
IPC: B27B9/00
Filed: 1964-08-19
Abstract: 1,032,816. Sawing. G. & M. POWER PLANT CO. Ltd. May 4, 1965 [Aug. 19, 1964], No. 33892/64. Heading B5L. A pruning saw comprises a saw blade 5 in the form of an annular toothed ring and driven by a pinion 10 having pin-like teeth which enter recesses 22 in the saw blade between the teeth, the saw blade being mounted in a casing one end of which is bifurcated to provide spaced limbs of unequal length and which are intended to straddle the branch or limb which is to be severed by the periphery of the saw between the limbs, the longer limb enabling the saw to be located in the correct position on the branch and resting on the branch during the cutting operation. The casing is secured by screws 8 to tubular pole 2, Fig. 1 (not shown), the other end of which is secured to an electric motor 3 having a flexible or other driving shaft passing through the pole and formed with a square end received in a square recess 16, Fig. 9 (not shown), in the pinion 10 which is mounted in bearings 12, 13 in a part 9 of the casing, the motor being controlled by a trigger-type switch 4. The casing is formed by a part circular side plate 17, Fig. 5 (not shown), two further part-circular sideplates 18, 19, Fig. 2, and saw guide blocks 20 sandwiched between the side plates and formed with grooves 21 for receiving the inner periphery of the saw which is driven by the pins on the pinion 10 engaging the recesses 22 between the teeth. The spaced limbs of the casing are formed by extensions 23, 24, 23a, 24a on the side plates 17, 18, 19 and further plates 25, 26 secured between the extensions by screws 27. A lubricant soaked pad 34 engages the inner periphery of the saw. A plate 28 is provided to prevent closing of the kerf cut by the saw, the plate being slidably mounted in grooves 32 formed by lips on the side plates and resiliently urged outwardly by a spring 29. The casing has a cut-away 35 to enable the saw to cut small branches.
Patent GB-1394345-A (GB)
Title: Apparatus for measuring a fluid flow rate
IPC: G01F1/00
Filed: 1973-07-17
Abstract: 1394345 Measuring fluid-flow rate electrically INSTITUTTET FOR PRODUKTUDVIKLING 17 July 1973 [25 July 1972] 33978/73 Heading G1N Apparatus for measuring fluid-flow rate comprises a steady flow measuring unit in the form of a positive displacement screw rotor device 2 having rotor 36 and fluid inlet and outlet conduits 4, 5; a variable speed drive motor 20 for the  rotor; a pulsating flow measuring unit 3 in the form of a cylinder 8 connected between the fluid inlet and outlet, in parallel with the steady flow measuring unit, and including a ball 9 having a conductive coating and being freely movable along the length of the cylinder, there being capacitor plates 10, 11 disposed on the cylinder wall whereby the ball displacement may be measured the resulting signal being utilised by control unit 22 to control the rotor speed to maintain the mean position of the ball at a reference position so that there is zero pressure drop across device 2 when, it is stated, the motor speed will represent fluidflow rate and which speed is measured by a tachogenerator 23. The signal representing ball displacement is differentiated and compared at 29 with that from a function generator 18 and providing an A.C. signal to control electrohydraulic servo valve 13 of which the response characteristics are required and through which the fluid flows so that the output from indicator 29 represents the ratio of amplitudes of valve actuating current and fluid-flow.
Patent GB-848356-A (GB)
Title: Improvements in or relating to ice cream freezing machines
Inventor: NEILSON ROBERT JAMIESON
IPC: A23G9/10
Filed: 1957-10-31
Abstract: 848,356. Ice-cream freezers. GENERAL UTILITY CO. Ltd. Oct. 31, 1957, No. 33989/57. Class 29 In a freezer having a relatively rotatable combined mixer and scraper, the freezer wall 1 is contacted by a flexible thin metal scraper blade 6 slidable longitudinally into a groove 7 extending along the vertical arm 5 of the mixer 3.
Patent GB-634654-A (GB)
Title: Improvements in or relating to stock stops for automatic lathes
IPC: B23B13/12
Filed: 1946-11-15
Abstract: 634,654. Lathe details. MANUFACTURE DE MACHINES DU HAUT-RHIN SOC. ANON. Nov. 15, 1946, No. 34009. Convention date, Nov. 23, 1945. [Class 83 (iii)] A stock-stop mechanism for automatic lathes with bar-feed is given a slight axial displacement away from the stock to release it therefrom, followed by an arcuate movement in a plane perpendicular to the axis of the bar to move the stop into inoperative position. The stop 3, Fig. 1, adapted to limit the feed of bar-stock 1 in the head 2 of an automatic lathe, is carried at the end of a spindle 4. The opposite end of the spindle is threaded at 7, Fig. 4, to receive the boss of a control lever 8. The latter is connected through the links 9, 11, 12, and pivoted lever 13 for oscillation by a cam 15 carried on the auxiliary or main cam shaft of the lathe. A spring 18 maintains a contact roller on the lever 13 in engagement with the cam. The first part of the oscillatory movement of the lever 8 unscrews it from the spindle 4 and as the end of the spindle is constantly pressed to the left, Fig. 4, by a dish-like spring 22 the stop moves a small distance axially to clear it from the end of the stock-bar. Continued rotation of the lever 8 brings an abutment 26, Fig. 5, thereon against an abutment 25 on a ring 21 keyed to the end of spindle 4; the spindle and the stop are thus rotated to clear the end of the stock. Motion in the opposite direction results in the ring 21 moving through action of spring 27 to follow the movement of lever 8 until abutment 24 finally contacts a part of the machine frame 6, Fig. 5. Continued motion results in the screwing up of the control lever 8 on the end of the spindle 4 and the positioning of the stop arm 3 in its initial position for gauging the length of stock.
Patent GB-1383456-A (GB)
Title: Hinge fork
IPC: D03C13/00
Filed: 1973-07-17
Abstract: 1383456 Looms VEREINIGTE OSTERREIOHISCHE EISEN-UND STAHLWERKE ALPINE MONTAN AG and ETAB WANDERFIELD & CO 17 July 1973 [27 July 1972] 34026/73 Heading DIE [Also in Division E2] A hinge fork intended for use in a heald frame linkage of a weaving loom has hearing eyes 11 to accept reduced-diameter journals 10 of a pivot pin 9, and to enable a worn pin to be replaced easily the fork arms 1 and 2 are resilient and provided respectively with threaded bushes 4, 5 which are threaded opposite-hand to receive threaded stub shafts 6, 7 extending axially from opposite sides of an operating wheel 8, which may be locked against rotation by a spring arm 12. To release a pin 9 the wheel 8 is rotated to spread the arms 1, 2, the new pin being retained by the reverse process.
Patent GB-378296-A (GB)
Title: Improvements in ploughing machines
IPC: A01B63/06
Filed: 1931-12-08
Abstract: 378,296. Implements for working land; tractors. MONESTIER, P., 12, Avenue Riquet, Castelnaudary, Aude, France. Dec. 8, 1931, No. 34039. [Class 6 (i).] A narrow-track implement for ploughing vineyards &c. consists of a tractor connected to a plough adapted to be raised by cables, the chassis of the tractor being attached by two adjustable chains to the front cross-bar of the plough, which engages in guide hooks on the chassis, and the axle of the front steering wheels of the tractor being pivotally mounted at its centre on the chassis and connected to it at its ends by means of a system of compensating springs. The front steering wheels 3 are as near as possible to the rear driving wheel 4 and may themselves be driven. The front axle 6 is pivoted at 7 to the chassis 8 and connected to rods 13 passing through swivelling members 15 in guide brackets 9 adjustably mounted on the chassis. Compensating springs 12, 11 surround the rods above and below the brackets 9, the upper springs being adjustable by means of nuts 14. The front bar 17 of the plough 2 is connected by two chains to points on the chassis 8 near the front wheels and higher than the crossbar 17. The plough is raised by cables 19 secured at 20 and passing round pulleys 21, 22, 23 to a drum 24 driven by the motor 5, the front bar 17 coming into contact with hooks 18 on the chassis 8. These hooks 18 are attached to bars 28 connected to runners 25 and movable through supports 31 under the control of adjustable springs 33, 34. The bars 28 are guided by cheek plates 30 and are connected together by a chain. The runners 25 are connected to the chassis 8 by rods 26 and normally are above the ground but descend and support the plough when it is raised. An endless track 38, Fig. 4, may be substituted for the driving wheel 4, the track passing round an upper driven sprocket 39 and two lower sprockets 40, the axle of one of which is adjustable.
Patent GB-1362701-A (GB)
Title: Arrangement for continuous casting
IPC: B22D11/00
Filed: 1971-07-21
Abstract: 1362701 Continuous casting MANNESMANN AG 21 July 1971 [31 July 1970] 34292/71 Heading B3F A device 3, 5 through which molten metal is passed, e.g. from a tundish or teeming ladle, to beneath the powder-covered surface of a metal bath in a mould containing a cooled mandrel 10, has a hollow body 3 arranged vertically and at its end beneath the surface has a part-ring outlet duct 5 which extends horizontally or at an angle (up to 45 degrees) to the horizontal, upwardly or downwardly, and the outlet apertures 6 of which are at an angle α to each other; the vertex of the angle α, in the plane containing the axis of the duct is, as indicated, substantially on the one of the two arcuate lines (shown broken), where the inside surface of the duct intersects the plane, which has the smaller radius of curvature. It lies between 45 and 180 degrees. The ring of which the duct 5 is nominally a part may be polygonal.  The cross-section of the passage through the body 3 (which may be rectangular in section) and the total of the cross-sections of the outlet apertures 6 are both several, e.g. three times, greater than that of the outlet from the tundish or ladle.
Patent GB-306929-A (GB)
Title: Tyre repair
IPC: B29C73/04
Filed: 1928-11-22
Abstract: 306,929. Goodyear Tire & Rubber Co., (Assignees of Zimmerman, C. H.). Feb. 28, 1928, [Convention date]. Pneumatic tyres, repairing.- Rubberized silk is used in the repair of tyre covers. In the example shown, the damaged part of the cover is cut away to leave converging apertures 16, 17 which are filled with suitable rubbers 21, 18, the inner filling being then backed by a thin-edged patch 20 formed of rubberized silk layers. The tread filling 21 may be reinforced with breaker material 23.
Patent GB-788026-A (GB)
Title: Improvements in or relating to an improved chafer for tire bead area protection
IPC: B60C9/00
Filed: 1955-12-01
Abstract: A chafer element for a pneumatic tyre comprises a strip of natural or synthetic rubbery material, which may be fabric reinforced, compounded with 60 to 110 parts of silica per 100 parts by weight of rubber hydrocarbon to yield a Williams plasticity Y-3 value of at least 6 when tested at 212 DEG F. under a 5 kilogram load for 3 minutes.  Such rubbery material resists flow during vulcanization of the tyre and ensures an adequate rubber covering of the carcase plies in the bead area.  Suitable synthetic base-rubbers include copolymers of butadiene and styrene, butadiene and acrylonitrile, isobutylene and isoprene, and rubbery polymers of chlorobutadiene.  The compound may include up to 60 parts of carbon black, with the usual vulcanizing agents, antioxidant, and accelerators.  Suitable accelerators include the thiazoles, dithiocarbamates, thiuram sulfides, aldehydeamines and guanidines, and for polychloro-butadiene rubbers, magnesium oxide.  The compound is preferably mixed in three stages, the majority of the silica being added in the first two stages, and the remainder, if any, of the silica, together with the carbon black and vulcanizing agents being added at the final stage, the batches resulting from each stage being allowed to cool before proceeding to the next.  The Specification describes a specific example of a suitable compound.
Patent GB-1525699-A (GB)
Title: Video colour control
IPC: H04N9/43
Filed: 1975-08-18
Abstract: 1525699 Simulating colour video signals SING- ER CO 18 Aug 1975 [17 Jan 1975] 34488/75 Heading H4T Video colour signals are simulated by dividing a brightness signal into three portions representing hue (R, B and G), and adding equally to each a proportion of the original brightness signal to simulate saturation. The brightness signal is fed to three ganged potentiometers R2, R3, R4 each consisting of three equal series sections (1), (2), (3), a different one of these sections of each pot, being short circuited and the input in each case being connected to junction of the remaining two sections. The arrangement is such that, for any position of the ganged wipers, one pot, will have zero output and, of the remaining two, one output will be moving towards a maximum as the other moves towards a minimum. These hue signals are fed to weighting amplifiers A2, A3, A4 simultaneously and identically controlled by a "saturation" pot. R5. The output of each weighting amplifier may be represented as where K is the "hue" setting of the amplifier, W is the "saturation" setting of pot. R5 and V, is the output of the "brightness" amplifier A1.