baber/WOPTO huggingface dataset:
Patent GB-732954-A (GB)
Title: Chip collector for stereotype plate trimmer
IPC: B41D5/00
Filed: 1953-10-01
Abstract: 732,954. Printing-surfaces. WOOD NEWSPAPER MACHINERY CORPORATION. Oct. 1953 [Jan. 22, 1953], No. 26943/53. Class 100 (2). Cutting stereotype plates.-For collecting the shavings from a stereotype plate to be trimmed a saw chip collector is mounted on a saw mounting adapted to support a saw for cutting engagement with the plate and is shaped so that after intercepting the chips or shavings their speed is decreased until they are finally deposited in a hopper 54. As shown, a stereotype plate casting- machine includes a core 11 adapted to be rotated for the casting of a plate 12. To trim the plate along its upper and lower edges saws 14 and 15 are provided on a drive-shaft 16 in bearings 17 and 18 in a housing 19, trimming being effected during rotation of the core 11 to remove the plate 12. The saw housing is rotatably mounted on a shaft 20 and the saws are rotated through gearing 25, 26. The housing 19 is adapted to pivot about the main shaft 20 so that the saws 14, 15 are moved into engagement with the plate 12. To effect such movement a rod 29 is connected to one end of a bracket 30 on the shaft 20, the other end of the bracket being connected to the housing 19 by adjustable means 32. The shavings or chips from the plate 12 are collected by a casing having a vertically disposed cylindrical chamber section 50 and a back wall 51 which terminates in an arcuate section 52 having sliding engagement with a complementary arcuate section 53 of the housing 19. The saw chip collector also has a front wall 53<SP>1</SP> to the outer end of which is attached a pair of guard extensions, the upper one 55 being shown in Fig. 3. The collector is provided with upper and lower brackets 60, 61 whereby the collector may be pivoted about the housing 19. A third bracket 65 is provided which carries a pin running in a slot 67 of a guide 68.
Patent GB-1209183-A (GB)
Title: Improvements in or relating to repeaters
Inventor: CRANK GEOFFREY JAMES
IPC: H04B17/40
Filed: 1967-06-12
Abstract: 1,209,183. Repeater testing. POST OFFICE. 30 May, 1968 [12 June, 1967], No. 26989/67. Heading H4R. In a transmission system including transistor repeaters powered over the line and in which line continuity tests are performed using low values of D.C. or low frequency A.C., insufficient to energize the repeaters and to which the repeaters would present high impedance, the D.C. feed path of the repeater is by-passed by the contacts, 9, of a relay 10 which is energized to open the contacts by the normal supply current of the repeater, but is not energized by the low value testing current. To provide extra protection against failure of the relay contacts to open during normal use of the system a second relay may be provided with its contacts in series with the contacts of the first relay and its coil in series or parallel with the first relay coil. In addition, or alternatively, a fusible link 13, may be arranged in series with the relay contacts arranged to open circuit if the normal supply current flows therein for longer than a predetermined time, e.g. 1 minute. In order to allow the testing system still to be operated if the fusible link opens the link may be shunted by a rectifier back biased by the normal supply current and forward biased by the testing current of opposite polarity. To limit the maximum impedance of the power circuit the relay coil, or coils, is shunted by a low value resistor.
Patent GB-789809-A (GB)
Title: Process for the manufacture of terephthalic acid
IPC: C07C63/26
Filed: 1954-09-20
Abstract: Terephthalic acid is manufactured by a process wherein a terpene-containing by-product of the wood processing and allied industries is first subjected to isomerization by means of sulphuric acid, phosphoric acid, or a sulphonic acid, such as benzene sulphonic acid, having about the same acidity as phosphoric acid or sulphuric acid, at a temperature between about 50 DEG  and 150 DEG  C., and then, after the aqueous phase is removed, the organic phase is catalytically dehydrogenated at a temperature of about 250 DEG  to about 500 DEG  C., and the resulting dehydrogenation product consisting mainly of para-substituted benzene hydrocarbons is oxidized by a known method to terephthalic acid.  The product of the dehydrogenation is mainly p-cymene with a minor amount of m-cymene. The yield of p-cymene is increased by intensive mixing during the isomerization and recycling the acid used.  Specified dehydrogenation catalysts are chromium oxide-aluminium oxide, molybdenum oxide-aluminium oxide and vanadium oxide-aluminium oxide and mixtures thereof which may contain the oxides of metals in Groups I-IV such as the oxides of sodium, potassium, magnesium, calcium, aluminium when not otherwise present), the rare earth metals, thorium, zirconium and silicon.  Compounds of other metals such as iron, nickel and copper, or metals, such as the noble metals, may be added to the catalysts. Aluminium oxide may be replaced by aluminium silicate or silicic acid.  The oxidation of the para-substituted benzenes to terephthalic acid may be carried out with chromic or nitric acids, air or oxygen. In examples, the process of the invention is carried out batchwise or continuously using sulphuric acid and phosphoric acid as isomerizing acids, chromium oxide or molybdenum oxide-alumina dehydrogenation catalysts and oxidizing the para-cymene so obtained to terephthalic acid, an oxidation using chromic acid being detailed.
Patent GB-338255-A (GB)
Title: Improvements relating to couch beds
IPC: A47C17/18
Filed: 1929-09-07
Abstract: 338,255. Stoddart, T. Sept. 7, 1929. Bedsteads convertible into seats.-In a bedcouch of the type comprising a box 1, a lid 3 hinged at 4 and upholstered on its upper face, and a supplementary lid 5, hinged at 6 and accommodated normally beneath the lid 3, said supplementary lid being upholstered on its lower face and being provided with hinged supporting legs 8, the legs 8 are adapted to be swung auto. matically into operative position when the lid 5 is extended to form a double bed. This automatic swinging of the legs 8 may be caused by means of the wire 11.
Patent GB-1211372-A (GB)
Title: Internal combustion engines
Inventor: KELLETT ERIC
IPC: F02B37/00
Filed: 1967-06-13
Abstract: 1,211,372. Engine with exhaust driven superchargers. C.A.V. Ltd. May 27, 1968 [June 13, 1967], No.27299/67. Heading FIB. An exhaust driven turbocharger 16 drives afirst compressor 11 feeding the engine inlet manifold and a second compressor 12 supplying air or combustible mixture to a combustion chamber 15 in the exhaust pipe, the burnt gases from chamber 15 being supplied to the turbine 16 to supplement the engine exhaust gases at low engine speeds. Fuel may be added to the air entering compressor 12 by a carburetter 18; alternatively fuel may be injected directly into the chamber 15.
Patent GB-957903-A (GB)
Title: Steroids and their production
Inventor: HUFFMAN MAX NIEL
IPC: C07J75/00
Filed: 1961-07-28
Abstract: the invention comprises 1, 3, 5(10)-estratriene-3, 16, 17-triol 3-alkenyl ether wherein the alkenyl radical contains 3 to 5 carbon atoms, and the preparation thereof by reacting the required alkenyl halides and 1, 3, 5(10)-estratriene-3, 16, 17-triol in the presence of alkali.  The hydroxy groups in the 16- and 17-positions may each be in the alpha- or beta-configuration.
Patent GB-1478996-A (GB)
Title: Process and device for the coating of metal sheet
IPC: C23C14/56
Filed: 1974-06-20
Abstract: 1478996 Coating sheet by vacuum deposition ACIERIES REUNIES DE BURBACH-EICHDUDELANGE SA ARBED and SA COCKERILLOUGREE-PROVIDENCE ET ESPERANCELONGDOZ EN ABREGE COCKERILL 20 June 1974 [21 June 1973] 27521/74 Heading C7F In a method of coating elongate metal sheet by vacuum deposition, the sheet is continuously passed over a bath of molten metal in a vacuum chamber, shielding strips being interposed between the bath and the sheet to mask areas where no coating is required. In one embodiment, the sheet advances in a horizontal plane over marginal shielding strips 5', 5" and a central strip 6, one of the shielding strips 5" being mounted on a spring-loaded platform to keep the shielded portions constant, Fig. 1. The coating metal is vaporized by an electron gun 10. The upper surface of the sheet is protected from the vapour by a shroud formed by portions 11', 11". Sheet steel may be coated with, e.g. Al, Zn or Cu by this method. The shielding strips may be heated, e.g. electrically, to prevent deposition of vapour thereon. Alternatively, the shielding strips may extend across the width of the sheet and move with the sheet through the chamber.
Patent GB-519682-A (GB)
Title: Improvements in and relating to floating containers for use, for example, in swimming
IPC: B63C9/08
Filed: 1938-09-22
Abstract: 519,682. Containers for use in swimming. ERNSTEIN, E. Sept. 22, 1938, No. 27628. Convention date, Nov. 22, 1937. [Class 18] [Also in Group XXI] A container for use in swimming and adapted 'to contain articles of clothing &c. consists of a cylindrical container 1 of watertight material such as rubber or impregnated fabric, with inflatable compartments 2 and a slit 4 adapted to be sealed by sticking on a water-tight strip 5. The compartments 2 have valves 3 and are arranged inside or outside; they may 'also take the form of an inflatable tube extending round the container. To reduce resistance a tongue 7 of light metal, celluloid &c. may be arranged at the front to raise this end in the manner of a boat. A carrying strap 6 and a sliding clasp fastener are employed. '
Patent GB-1267353-A (GB)
Title: Electrical insulation of dynamo electric machine stator coils
Inventor: WARBRICK RAYMOND VALENTINE
IPC: H02K3/32
Filed: 1968-06-11
Abstract: 1,267,353. Insulation for dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. 22 May, 1969 [11 June, 1968], No. 27641/68. Heading H2A. A stator coil has the end turns, and parts of the straight sides which will lie within stator slots, insulated with resin-bonded flake mica, the remainder of the straight sides being insulated with resin-bonded mica paper. As shown, layers of resin-bonded mica flake tape, which are hand wound, meet layers of machine-wound resin bonded mica paper in a scarf joint 40 to the right of line C-C which represents the end of the stator core. Layers 30...37 are applied over the straight sides of the coil reducing to layers 30 ... 35 over the end turns. The resin is cured in a heated press.
Patent GB-1004295-A (GB)
Title: Magnetic pulse counting circuit
IPC: H03K3/30
Filed: 1962-07-18
Abstract: 1,004,295. Electronic counters. GENERAL TIME CORPORATION. July 18, 1962 [July 19, 1961], No. 27656/62. Heading G4A. [Also in Division H3] A counter includes a magnetic storage element having a saturating winding 51, a triggering winding 52 and a resetting winding 53, pulses supplied to the saturating winding at terminal 42 also passing through a shunting resistor 65 which determines the radix of the stage. The core is progressively switched to positive saturation by the successive pulses applied to winding 51, the pulses being such that the pulse which finally produces saturation takes the element well beyond the saturation point. When this pulse ceases the flux collapses to the saturation point, thus inducing a voltage in winding 52 which triggers the transistor 60 and causes a resetting current to flow in winding 53. This resetting current is in a direction such as to maintain the triggering voltage, and hence the core returns to the point of negative saturation and an output pulse is produced at terminal 13. The resistor 70a limits the emitter current thus improving the shape of the output pulse and making the output independent of variations in supply voltage. The resistor 75a acts as a damping resistor on coil 53 to prevent triggering of the transistor by the small change in flux which occurs at the end of intermediate pulses. The diode 76 prevents resistor 65 acting as a damping resistor during resetting. The stage 10 forms a one-to-one counter and acts as a pulse former so that the input waveform is not critical so long as each pulse saturates the core of storage element 20 after amplification by transistor 35. It is stated that the cores of the storage elements may be formed by spirally winding a tape of square loop magnetic material.
Patent GB-1085009-A (GB)
Title: Warp sleying apparatus
Inventor: COOK WILLIAM WALTER
IPC: D03J1/14
Filed: 1966-06-21
Abstract: 1,085,009. Reed threading machines. WOOL INDUSTRIES RESEARCH ASSOCIATION. June 21, 1966, No. 27664/66. Addition to 944,701. Heading D1M. The reed threading machine of Specification 944,701 is modified by providing a track 60 for the carriage to run upon. The track may be attached to a floor, wall, ceiling, workbench wall columns or on a loom.
Patent GB-843792-A (GB)
Title: Improvements in or relating to controllers for electric motors driving compressors or pumps
IPC: F04B35/04
Filed: 1957-09-02
Abstract: 843,792. Controllers. WIEGEL, H. P. Sept. 2, 1957 [Sept. 18, 1956], No. 27681/57. Class 38 (3). A star-delta switch in circuit with an electric motor driving a compressor or pump has its change-over mechanism controlled in accordance with the pressure in a delivery pipe connected to the compressor or pump. As shown, a compressor plant comprises an air-tank 1 on which is mounted an electric motor 2 driving the compressor 3. A non-return valve 11 is placed in a delivery pipe 6 which has a branch leading to a diaphragm chamber 13, so that, when the pressure in this chamber increases, a diaphragm is moved upwardly and operates the star-delta switch. An automatic regulator 14 switches the motor on and off according to the pressure in the tank. The pipe section between the non-return valve and the compressor has an air-release valve for returning the switch to the star position. A separator 5 provides means for delaying the increase of pressure in this section of pipe, so ensuring that the motor has reached sufficient speed before the change-over takes place. The delay in change-over may also be afforded by an oil chamber between the pipe 6 and the chamber 13. The oil enters the diaphragm chamber through an adjustable small opening so that the pressure of the delivery pipe is transmitted with some delay.
Patent GB-1057599-A (GB)
Title: Paper tape dispenser
IPC: G06K13/26
Filed: 1964-07-06
Abstract: 1,057,599. Tape dispensers. R. D. LACY. Sept. 27, 1965 [July 6, 1964], No. 27703/64. Heading A4G, [Also in Division G5] On passing a tape reel through slots 2a, in face plate 2, Fig. 1, the axle passes through notches 2b and, on entering slots 4 in horizontal arms 3 swings lever 7 clockwise to raise link 10 and swing a gate 9 carrying a tape guide 21 in front of slot 2a to prevent entry of another reel. At the same time lever 7 swings lever 13 up to position a guide 14 at the bottom of slot 2a, whereby tape is fed around roll 14, driven roll 17, twisted and passed over roll 21 to e.g. a punch or reader unit. A tail 15a on lever 13 acts as a brake on the reel and is connected by spring 8 to lever 7 to damp tape vibration. To mount tape on the spool 1, Fig. 5, a rubber or plastics bush 33 is placed in tape core 34, and tapered hubs 29, 30 secured respectively to cheeks 27, 28 are expanded radially within the core, hub 29 being a force fit and hub 30 a free fit on axle 31.
Patent GB-897210-A (GB)
Title: Improvements in the recovery of pure phthalic anhydride from the crude product obtained in the oxidation of naphthalene
Inventor: SUTER HUBERT
Filed: 1960-08-12
Abstract: Crude phthalic anhydride, containing at least 90% by weight of phthalic anhydride, obtained by the oxidation of naphthalene, is purified by distilling the crude material at a pressure of 20 to 200 mm. Hg and a still-temperature not exceeding 225 DEG  C. until 5 to 25% of the material, including all the maleic acid or anhydride impurity, has distilled over; and then distilling the remaining material at such a pressure that the still-temperature does not exceed 200 DEG  C. whereby pure phthalic anhydride is obtained as distillate, and a tarry residue containing naphthoquinone, sulphur-compounds and inorganic components remains in the still. In an example, the process is carried out in two distillation-columns, each packed with Raschig rings, the first column being operated at a pressure of 145 mm. Hg, and the second column at 85 mm. Hg.
Patent GB-482313-A (GB)
Title: Improvements in sand blast apparatus
IPC: B24C5/02
Filed: 1936-10-15
Abstract: 482,313. Sand - blast. ST. GEORGE'S ENGINEERS, Ltd., and WILSON, F. W. Oct. 15, 1936, No. 27983. [Class 60] Sand-blast apparatus comprises a main air pipe A adapted to deliver a comparatively large volume of air at low pressure and a hopper B for the abrasive mounted on the pipe and communicating therewith by means of a shoot C inclined to the axis of the pipe in the direction of the air stream and projecting into the pipe so as to deflect the air stream. The shoot may be formed by an adjustable member as shown in Fig. 1 or may comprise one or more oval opensided tubes inserted in the air pipe. In another form, Fig. 6, the hopper is at the side of the pipe A and the shoot C<1> comprises a tube open at one side c<1> in the direction of the air stream. Specifications 9580/03, 10610/04, [both in Class 60], and 432,377 are referred to.
Patent GB-257451-A (GB)
Title: Improvements in or relating to wood cutting and working machines
IPC: B23Q11/00
Filed: 1925-11-09
Abstract: 257,451. Goddard, J. W., and Clapp, C. H. Nov. 9, 1925. Planing.-Shavings &c. are removed from a thicknessing or other wood-planing machine by a conveyer 1 mounted in a removable frame 4. which is placed upon the lower table c of the machine. The conveyer is driven by a friction roller 8, which may be spring mounted, and is adjusted into driving contact with one of the feed rollers f by raising the table c. The conveyer roller 2 may be adjustable to tighten the belt and the roller 2<a> may be spring mounted. Ball bearings may be used.
Patent GB-650823-A (GB)
Title: Improvements in or relating to sliver coiling mechanism particularly for carding-engines, intersecting gill-boxes and draw-frames
IPC: B65H54/80
Filed: 1947-10-21
Abstract: 650,823. Coiling slivers. AKT.-GES. J. J. RIETER & CIE. Oct. 21, 1947, No. 28180. Convention date, July 10, 1946. [Class 120(iii)] A sliver coiling mechanism comprises a holder or holders for suspending the can or cans below the coiler head or heads. The said holders may be given a rotary movement. As shown, the holders are made up of spring clips 3, lugs 5 and frame 4, the latter being supported on thrust bearings 6 carried on studs 7 inserted in holes in cranks 10 rotated by a worm drive 11.
Patent GB-1505937-A (GB)
Title: Process for the manufacture of formyl compounds
IPC: C07C69/145
Filed: 1976-07-08
Abstract: 1505937 Formyl esters F HOFFMANN-LA ROCHE & CO AG 8 July 1976 [9 July 1975] 28446/76 Heading C2C Esters of formula wherein R 1  is alkyl (1-6 C), are prepared by (1) treating wherein R 2  is hydrogen or alkyl (1-6 C) with a ring-opening agent, e.g. a de-alcoholating/ isomerization agent such as sulphonic acids, carboxylic acids and Lewis acids, or a catalytic amount of amine hydrohalide and (II) by treatment with a halogenating agent to yield wherein X represents a halogen atom, converting to the quaternary salt by treatment with ammonia, an alkyl substituted aliphatic amine, an aromatic amine or a heterocyclic amine wherein Y represents the quaternary group, converting to and isomerizing to the desired ester. The pyran derivatives used as the starting material are prepared from  where Q represents a formyl, lower alkoxycarbonyl, hydroxymethyl or a lower acyloxymethyl, prepared by reacting with in the presence or absence of a solvent at from -15‹ C. to 200‹ C., e.g. by reacting 1-ethoxy- 1,3-pentadiene with n-butyl glyoxylate or glyoxal. The esters of Formula I, are intermediates or the synthesis of vitamin A.
Patent GB-859782-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/38
Filed: 1957-09-10
Abstract: 859,782. Windscreen cleaners. TRICO PRODUCTS CORPORATION. Sept. 10, 1957 [Sept. 10, 1956], No. 28548/57. Class 138(1). A windscreen wiper blade support, with a central arm attaching part, has means which upon flexing of the blade imparts a twist to the outer end thereof. As shown, blade 19 has a support consisting of levers 23, 24 and 26 which make sliding contact by means of ears with flexible blade backing strip 21. When the blade is flexed, a hinge 31 imparts a twist to the outer end thereof, a spring 32 maintaining the blade in contact with the windscreen. In an alternative embodiment, Fig. 9, a spring acts between lever 37 and clip 18, the hinge 31 being replaced by fulcrum lugs 38 on lever 37 which are bent to engage slots formed in the end of lever 36. Specification 773,953 is referred to.
Patent GB-897378-A (GB)
Title: A device for transforming displacements into pressures
IPC: F15B5/00
Filed: 1960-08-17
Abstract: 897,378. Torque or displacement measured by fluid pressure. DAIMLER-BENZ A.G. Aug. 17, 1960 [Aug. 18, 1959], No. 28548/60. Class 106 (2). A device for measuring or controlling the displacement which may be due to torque, of a member 11 comprises a stack of barometrictype capsules 15 moved by member 11 through bell-crank 12 and rod 14 to block a discharge duct 19 of a chamber 16 and thus interrupt a circuit supplied with fluid at constant pressure through an orifice 18<SP>1</SP>. Fluid pressure builds up within the chamber 16 until it is slightly greater than the pressure within the capsules which are then compressed slightly to open discharge duct 19. The pressure in chamber 16 is measured by a gauge connected at 20 and is dependent on the position of member 11.
Patent GB-261905-A (GB)
Title: Improvements in and relating to thermionic valve wave-meters and the like
IPC: G01R23/00
Filed: 1925-11-13
Abstract: 261,905. Edgeworth, K. E. Nov. 13, 1925. Thermionic valve circuits. - In a wavemeter or frequency meter, the grid and anode circuits of the valve are connected across a small number of turns only of the tuning inductance, or equivalent inductive couplings are employed, thereby rendering the calibration sensibly independent of the capacity of the valve. In the example shown in Fig. 1 the oscillatory circuit comprises a tuning inductance 4, having nine turns, and a variable condenser 5. One end of the inductance 4 is connected to the high-tension battery, and the anode 1 of the valve is connected to the third turn from this end. The untuned grid coil 6 may consist of three turns with a tight coupling or a somewhat larger number with a loose coupling. In a modification, Fig. 2, the grid 2 is connected to the third turn from the end of the inductance 4, the untuned anode coil 7 consisting of three turns with a tight coupling or more with a loose coupling. The effect in each case is to reduce the equivalent capacity added to the oscillatory circuit by the valve, which equivalent capacity is approximately proportional to the square of the number of turns across which the valve is connected. The damping of the oscillatory circuit should be as low as possible. Accord. ing to the Provisional Specification the invention may be applied to wavelength standards or for generating local oscillations for heterodyne reception.
Patent GB-209845-A (GB)
Title: Improvements in tennis racquets
IPC: A63B49/08
Filed: 1922-10-20
Abstract: 209,845. Westover, G., and Watson, T. Oct. 20, 1922. Rackets.-A tennis racket of the kind having a metal frame which partially embraces the wedge portion of a wooden handle, has a frame a of substantially channel section with the concavity outside and with the curvature reversed where it embraces the handle c to which it is secured by a bolt c. The junction of the handle and the frame is covered by two plates f, secured by rivets i and provided .with inner curved parts k which fit into reduced portions of the. frame to maintain the continuity of its inner contour. The frame diminishes in depth and thickness from the neck outwards. The stringing may be of metal wire formed of a steel core surrounded by aluminium strands.