baber/WOPTO huggingface dataset:
Patent GB-326645-A (GB)
Title: Improvements in and relating to garden frames
IPC: A01G9/20
Filed: 1929-02-26
Abstract: 326,645. Osborne, E. Feb. 26, 1929. Glasshouses.-A horticultural frame is formed of parts which can be loosely fitted together without bolts, clamps and the like and means are provided for supporting the roof in two positions necessitated by growth of the contents. The sides 1 are formed with inclined upper edges and have fitted to their inside faces metal guides 4 with inturned edges to receive bars 8 secured to the vertical edges of the front and back panels 6. Outstanding ledges 2, 3 for carrying the roof at different levels, and guides 9 for receiving removable raising pieces 10, are also provided on the side panels and the roof-light is formed in sectional panels 12 joined together.
Patent GB-176381-A (GB)
Title: Improvements in radio antenna systems
IPC: H01Q1/48
Filed: 1922-03-04
Abstract: 176,381. Ges. f³r Drahtlose Telegraphie. March 5, 1921, [Convention date]. Aerials.-Earth lines B are laid beneath the aerial A and are coupled by coils C to a coil D in the vertical lead to the aerial in such a way that the currents induced in the line B by the couplings C, D balance those induced by the aerial.
Patent GB-567208-A (GB)
Title: Film threading devices for motion picture apparatus
IPC: G03B1/56
Filed: 1943-04-22
Abstract: 567,208. Kinematograph apparatus. BOLSEY, J. April 22, 1943, No. 6515. [Class 97 (i)] Film threading is effected with the aid of guides engaging the outsides of the film loops, a film-feeding member or members being provided which is or are movable after threading to shorten the loops and thus free them from the guides ; movement of the members may be effected automatically during closure of the camera door. As shown in Fig. 1, loop-forming guides 10 extend from the ends of the gate 4 towards sprockets 14. The sprockets, and film guides 15, are carried by levers 16 movable about a stub shaft 19, the guides 15 being pivotally carried on pins 22 on the levers and having movement limited by pins 23 and slots 24. A spring 40 separates the arms 17 of the levers during threading, the sprockets and guides 15 being then near the ends of the guides 10. After threading, the arms 18 of the levers are separated, and the swinging movement of the sprockets thus caused, plus rotation of them due to engagement of pinions on their shafts with a driving gear 28, shortens the film loops and draws them from the guides 10. The arms 18 may be separated by a wedge 37, Fig. 4, on a slidable member 33, carried by the camera casing, and moved by engagement therewith of the camera door near the end of its closing movement. In a modification, the spring 40 is omitted, and the member 33 is shaped so that, under the action of a spring, it also draws the arms 18 together as the camera door is opened. A modification is described in which a single sprocket is provided, movable towards and from the gate.
Patent GB-405470-A (GB)
Title: Improvements in or relating to electrolytic cells provided with a valve, particularly condensers
IPC: H01M50/179
Filed: 1933-03-03
Abstract: 405,470. Elastic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 3, 1933, No. 6520. Convention date, March 5, 1932. [Class 135.] An electrolytic cell, particularly a condenser, is provided with a flap valve secured to the wall of the vessel by means of one or more parts integral with the flap and pulled through apertures in the wall. In the electrolytic condenser shown, an electrode 1 consisting of a helically wound profiled rod or wire is provided with an oxide coating and immersed in an electrolyte 2 contained in a vessel 3. In the lid 4 of this vessel is a gas-escape aperture, which is closed by the head 6 of a mushroomshaped valve of rubber. The stem 7 of the valve is pulled through an aperture in the lid. The stem is originally longer and tapered to facilitate its insertion. After insertion the greater part of the stem is cut off, leaving the part shown. The vessel 3 is closed at the bottom by a member 8 of ebonite, artificial resin, &c., an hermetic seal being obtained by means of a rubber disc 10 clamped between the member 8 and a disc 11 by a nut 12 on the bolt 9, which serves as the conductor for the electrode 1. The disc 10 is turned over the edge of the member 8 and fits into a groove 14 therein. The vessel 3 is formed with a re-entrant ring 13 against which the disc 10 is pressed by flanging over the edge 15. The condenser is held in a base-plate by means of a nut 16. The flap may alternatively consist of a small strip of rubber, the ends of which are pulled through slits in the condenser wall, whereas the middle portion lies on the exhaust part, which may be formed on a protuberance.
Patent GB-120849-A (GB)
Title: Improvements in Screw Propulsion.
Inventor: GRANDJEAN HENRI ALEXANDRE
IPC: F42B19/12
Filed: 1918-04-17
Abstract: 120,849. Grandjean, H. A. April 17, 1918. Torpedoes, locomotive.- Relates to screw propellers which are given a longitudinal reciprocating movement in addition to the rotary movement, and consists in imparting the reciprocating movement by means of a cam or ramped disk a, supported by the block d and bearing against a cross-head e fixed to the propeller shaft b. Ball bearings are fitted between the cam and the cross-head.
Patent GB-716230-A (GB)
Title: New phenthiazine derivatives and processes for their preparation
Inventor: CHARPENTIER PAUL
IPC: C07D279/28
Filed: 1953-06-29
Abstract: The invention comprises 3-chloro-10-piperidinopropyl-phenthiazine, obtainable by the action of 1 - piperidino - 3 - chloropropane on 3-chlorophenthiazine in presence of sodamide.  The product is employed in the form of acid addition or quaternary salts.
Patent GB-381840-A (GB)
Title: Means for determining the illumination of a negative in photographic printing
IPC: G01J1/12
Filed: 1932-03-04
Abstract: 381,840. Photographic printing. M œ L L E R, E., 18, Kollenbuscherweg, Schwelm. Westphalia, BERENS, H., 7, Steindamm, Hamburg, and HOMRICH, F., 41, Gr. Rainstrasse, Altona, Elbe, all in Germany. March 4, 1932, No. 6640. [Class 98 (i).] To determine the printing illumination in accordance with the density of the negative and the sensitivitv of the printing emulsion, two o comparison fields 3, 7 are contained within a casing 1 having a viewing aperture 6. One field is illuminated by a standard lamp 2 through an interchangeable screen 4 which is selected to correspond with the printing emulsion. This field is seen by reflection from a mirror 5. The other field 7 is illuminated through a selected part of the negative 10 by the printing lamp 8. The illumination of this field 7 is adjusted as by means of an adjustable screen 11 until both comparison fields are equally illuminated.
Patent GB-1454439-A (GB)
Title: Can ironing press
IPC: B21D22/30
Filed: 1974-07-30
Abstract: 1454439 Drawing can bodies GULF & WESTERN MFG CO 30 July 1974 [8 April 1974] 06650/76 Divided out of 1454437 Headings B3A and B3Q The subject-matter of this Specification is identical with that described in Specification 1,454,437, but the claims are concerned with supporting the drawing rings in the machine by means of cam members. Specification 1,454,438 is referred to.
Patent GB-140387-A (GB)
Title: Process for the vulcanisation of rubber
IPC: C08K5/00
Filed: 1920-03-04
Abstract: 140,387. Bruni, G. March 15, 1919, [Convention date]. Vulcanizing-compositions.-Natural or synthetic rubber is vulcanized by the addition of salts of mono- or disubstituted dithiocarbamic acids and di- or tri-valent metals or inorganic radicles, and sulphur, the amount of sulphur being reduced to 2-0.2 per cent of the rubber. In an example, a mixing of 100 parts rubber, 0.5 parts sulphur, and 1 part pentamethylene dithiocarbamate of zinc, with or without the addition of mineral oxides, reclaimed rubber, substitutes, and the like, is vulcanized in the usual manner.
Patent GB-1002792-A (GB)
Title: X-ray film cassette
IPC: G03B42/04
Filed: 1964-02-18
Abstract: 1,002,792. X-ray film cassette. ELTRO. G.m.b.H. Feb. 18, 1964 [April 4, 1963], No. 6685/64. Heading H5R. A flexible X-ray film cassette (Fig. 2) comprises two rectangular strips of synthetic resin sealed along two sides by high-frequency welding and at one end by welding or adhesive tape and folded over and closed at the other end, as by button fasteners 3, the inside surfaces of the strips being backed by lead foil 2. X-ray film is readily inserted and removed through the buttoned end at which seals 4 render the cassette lightproof. The cassette is of a waterproof synthetic resin such as P.V.C., &c. The lead backing foils 2 provide protection and reinforcement for the cassette, besides acting as intensifiers for the film. In another embodiment the cassette is formed from a long rolled web formed of two synthetic resin strips welded together at their edges and backed by lead foils. Short lengths are cut off and the ends sealed by adhesive tape to form the cassette.
Patent GB-1417381-A (GB)
Title: Substituted oxazino 5,6e- indoles their process of preparation  and their therapeutic application
IPC: C07D498/04
Filed: 1974-02-14
Abstract: 1417381 Oxazino-indoles DELALANDE SA 14 Feb 1974 [21 March 1973] 6708/74 Addition to 1333358 Heading C2C The invention comprises compounds of formula wherein R 1  is C 1-4  alkyl and R 2  is alkyl optionally substituted by dialkylamino, pyrrolidino or morpholino, provided that R 2  may not be Et or Pr, optionally substituted by dialkylamino, when R 1  is Et. These compounds are prepared by reacting a corresponding 5-hydroxyindole with R 2 NH 2  + excess CH 2 O. Therapeutic compositions having diuretic, antihypertensive, antiulcerous, antiinflammatory, sedative and analgesic activity comprise compounds of the above formula, and may be administered orally, parenterally or rectally.
Patent GB-539079-A (GB)
Title: Improved steering device for endless track armoured fighting vehicles
IPC: B62D11/16
Filed: 1940-04-13
Abstract: 539,079. Steering endless-track vehicles by differential driving. BOUNSALL, H. R. April 13, 1940, No. 6737. [Class 79 (ii)] Each track sprocket H of an endless-track vehicle is driven through a separate epicyclic reducing gear train of which the sun pinion B is positively driven through bevel gearing A from the main gear-box S, the toothed annulus is fixed to the sprocket, and the planet carrier E is normally held stationary by a brake O. Steering is effected by slowing down the drive on the side to which the vehicle is to turn, and for this purpose the brake O on that side is released and the corresponding planet carrier E is driven through a' double differential gear M in the required direction. In the construction shown the differential gear is driven through worm gear R and a multi-plate clutch T from the layshaft S<SP>2</SP> of the gear-box S. The inner ,and outer co-axial planet wheels of the differential gear are fixed on their radial shafts, the outer sun wheels are fixed to the brake drums O, and the inner sun wheels are geared to the planet carriers E. Thus, when the steering lever (not shown) is operated to release one brake or the other and to engage the clutch T, the differential carrier rotates about the sun pinion which is still held by its brake and the sun pinions on the side on which the brake has been released are rotated and drive the corresponding planet carrier E to slow down the track on this side so that the vehicle is steered. The drive to the other track is unaffected.
Patent GB-936771-A (GB)
Title: Abrasive devices
IPC: B24D13/04
Filed: 1961-02-23
Abstract: 936,771. Abrasive wheels. NORTON CO. Feb. 23, 1961 [March 14, 1960], No. 6754/61. Class 60. An abrasive wheel comprises an annulus formed by " flap " type abrasive-coated sheets 11 bonded together adjacent the inner periphery 13 by a cured adhesive, the inner periphery having at least one annular groove 17 formed therein in which is bonded a rigid annular core member 12. The latter may be of wood, plywood or a plastic moulding and the bonding adhesive may be an epoxy resin or glue which may extend outwardly from the inner edges of the sheets 11 to a depth corresponding to the depth of the groove or grooves 17. The sheets 11 may also be shaped to form circumferential grooves 14 in the end faces of the assembled annulus into which a retaining ring or ribbed end plates 23 may optionally be bonded or secured, as in the embodiment of Fig. 2, by a spindle 20. Alternatively, the inner peripheries of the annulus and core members may be a snug fit on a shaft, or the core members only may contact the shaft.
Patent GB-1157217-A (GB)
Title: Oxy-Fuel Torches
IPC: F23D14/34
Filed: 1967-02-13
Abstract: 1,157,217. Blow pipe burners. HARRIS CALORIFIC CO. 13 Feb., 1967 [14 Feb., 1966], No. 6757/67. Heading F4T. An oxy-acetylene torch has two manually operated valves for controlling the flow of oxygen and fuel gas and a pair of on-off valves E, F controlled by a lever H which on further depression opens a cutting oxygen valve G and which can be locked in any of the open or shut positions by a toggle I.
Patent GB-551845-A (GB)
Title: Clinch nut
IPC: F16B37/06
Filed: 1942-05-19
Abstract: 551,845. Bolting. LANGMAID, C. T., and DOUBLE, P. E. May 19, 1942, No. 6795. [Class 89 (i)] [Also in Group XXII] Clinch nuts are produced from profile bars and have the corners of the nuts, that pass through the member to which the nuts are to be secured, rounded to facilitate assembly and reduce the risk of cracking the member. Blanks are cut from a profile bar, Fig. 4, and are side swaged and punched in a two-part die, Fig. 2, in which the corners are rounded and caused to extend upwards without affecting the flange. While the die is closed a punch enters as 32. An ejector (not shown) operates in the channel 33. The dies may have recesses for several nuts. After tapping the nuts have the form shown in Fig. 8 and they are secured in a plate &c. 59 by a punch 60, Fig. 9, that spreads the edges and corners leaving a central annulus.
Patent GB-585673-A (GB)
Title: Improvements relating to electron discharge oscillation generators
IPC: H03B21/02
Filed: 1945-03-19
Abstract: 585,673. Valve generating circuits; testing oscillators. BRITISH THOMSONHOUSTON CO., Ltd., and HIBBERD, R. G. March 19, 1945, No. 6857. [Class 40 (v)] In a test oscillator in which the frequency is varied electronically .over a wide band, the frequency of a main oscillator is varied electronically and, after multiplication, the output is mixed with oscillations from a second variable oscillator to produce the desired output. A saw-tooth voltage generator 9 varies the reactance of a thermionic valve circuit connected across the tuned circuit of the main oscillator 1, Fig. 2 (not shown), to frequency modulate the output. The second harmonic selected from the anode circuit of the main oscillator 1 is fed to frequency doublers 3, 4, a band-pass filter 5 selecting the fifth harmonic from the output of the last doubler and feeding this oscillation to a mixer 6 also supplied from a second variable oscillator 7. The output from the mixer 6 is fed to the circuit under test, the response being displayed on a cathode'-ray tube, the time base being supplied from generator 9. A calibrating oscillator 11 loosely coupled to the output gives an indication on the screen corresponding to its frequency. Specification 585,672 is referred to.
Patent GB-165457-A (GB)
Title: A new or improved appliance for use in wound dressing
IPC: A61F15/00
Filed: 1918-04-24
Abstract: 165,457. Davies, M. H. April 24, 1918. No Patent granted (Sealing fee not paid). Supports for parts under operation.-An appliance for use in dressing wounds with means to support the wounded limb, and at the same time to collect any discharge &c. from the wound, comprises a vertical trough-shaped member A formed integral with, as in Fig. 1, or, as in modifications, pivoted to, a horizontal tray B which mav contain a disinfectant and which collects the discharge. The limb is supported on a suitably-shaped rest a<2> which may be either integral with or pivoted to the member A. A folding stout wire frame b<3> may be attached to the appliance to give it greater stability.
Patent GB-551045-A (GB)
Title: Improvements in selective high frequency resonant systems
IPC: H04B1/16
Filed: 1941-05-30
Abstract: 551,045. Valve amplifying circuits. JOHNSON LABORATORIES, Inc. May 30, 1941, No. 6958. Convention date, June 10, 1940. [Class 40 (v)] In a permeability tuned receiver an electron discharge tube is regeneratively associated with an amplifier tuned circuit the plate of the tube being directly connected to the high potential terminal of the circuit and the grid being connected to the low potential end of the circuit. Fig. 3 shows a tuned circuit 40 providing the anode load to amplifying value 25 and having its damping reduced by regeneratively coupled triode valve 28. In a supersonic heterodyne receiver a resistance condenser combination may be associated with the aerial in place of the tuned circuit shown. In a modification, Fig. 4, the output is taken from the suppressor grid 88 of the pentode 25 instead of directly through condenser 58. Instead of the tuned circuit being tapped by condensers 44, 45 an autotransformer may be used, Fig. 6 (not shown) or a two-coil transformer the untuned winding 94 of which is in the cathode connection, Fig. 5. The movable core may be so constructed that the ratio of inductance to resistance of the circuit will remain constant throughout the tuning range. The winding may be varied in pitch or the core material may have higher losses per unit volume at the end last entering the coil to produce an inverse proportionality between the mutual inductance and the square of the frequency. Specifications 366,475 and 455,573, [Group XXXVI], are referred to. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the high potential side of the tuned circuit is connected to the grid instead of the latter being earthed, Fig. 5 (Cancelled and not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-181095-A (GB)
Title: Improvements in wireless telegraphy
IPC: H04L27/10
Filed: 1921-03-03
Abstract: 181,095. Wright, G. M. March 3, 1921. Diplex signalling; heterodyne receiving systems. -A diplex system comprises a transmitting station A provided with means such as keys K1, K2, which when actuated separately give two different frequencies N1, N2, and when actuated together give a third frequency N3; and a receiving station B comprising two local generators H1, H, giving frequencies equal to N1 + N3 / 2, N2 + N3 / 2, respectively, so that waves received from the transmitter A corresponding to the closure of one key K, give the same beat frequency with one of the local generators H, whether the other key K2 is closed or open. The two beat frequencies thus produced are rectified and passed to separate receivers T1, T2 tuned by means of filters F1, F2.
Patent GB-682207-A (GB)
Title: Process for producing sulphonates from bisulphites and olefins and the sulphonates so produced
IPC: C07C303/20
Filed: 1950-03-21
Abstract: 682,207. Sulphonates. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 21, 1950 [March 21, 1949], No. 7041/50. Class 2 (iii). Sulphonates are prepared by mixing an olefine hydrocarbon and a salt yielding bisulphite ions in a ratio of from 0.25 to 2 mols. of olefinic hydrocarbon to 1 mol. of bisulphite ion, in from 1 to 5 times the volume of olefinic hydrocarbon of aqueous methyl or ethyl alcohol containing 50-95 per cent (by volume) of the alcohol in the presence of an inorganic oxidizing agent present in an amount of 0.25 to 5 mols. per cent by weight based on the combined mols. of olefinic hydrocarbon and bisulphite ion-yielding compound and heating the mixture to a temperature hot exceeding 200‹ C. Preferably the reactants are mixed in a ratio of 0.5 to 1 mol. of olefinic hydrocarbon to 1 mol. of bisulphite ion. Ethylene or any of its hydrocarbon derivatives which are not conjugated dienes are suitable olefinic startng materials, e.g. propylene, butylene, tertiary amylene, 2-decene, cyclohexene, styrene, cyclopentene, vinyl-naphthalene, 1,4-hexadiene, 1,4- cyclohexadiene and 1-ercoseine. Suitable catalysts are sodium nitrate, sodium nitrate, nitric acid, potassium, lead, calcium, magnesium, cobalt, borium, nickel and silver nitrates and nitrites, sodium chlorate, potassium dichromate and perchloric acid. Suitable compounds for the production of bisulphite ions are sodium and potassium metabisulphite; sodium, ammonium, potassium and lithium bisulphite; sulphurous acid, methylamine bisulphite and calcium bisulphite. In the examples various olefines are treated with sodium metabisulphite in aqueous methyl alcohol solution in the presence of sodium nitrate.
Patent GB-922143-A (GB)
Title: Manufacture of beryllium tubes
Inventor: GUEST JOSEPH CLIFFORD
IPC: B21C23/00
Filed: 1961-02-27
Abstract: 922,143. Extruding ; making tubes. T.I. (GROUP SERVICES) Ltd. Jan. 23, 1962 [Feb. 27, 1961], No. 7041/61. Addition to 884,410. Classes 83 (2) and 83 (4). In a method of making a beryllium tube according to the parent Specification, the core is formed from a material having a coefficient of expansion higher than that of beryllium. The core is preferably of steel containing 10% manganese and 5% nickel and may be solid or hollow in which case it has a solid centre of a cheaper material. It is removed from the extruded tube by pickling or stretching or may become sufficiently loose upon cooling.
Patent GB-746374-A (GB)
Title: Improved process and apparatus for the synthesis of polyamides
IPC: C08G69/16
Filed: 1953-03-13
Abstract: Lactams are polymerized by heating a mixture of lactam and water at atmospheric pressure and a temperature of 130-200 DEG  C. for at least an hour to obtain a product melting above 100 DEG  C. and then heating this product without the addition of a catalyst and with or without the addition of monomer lactam at 210-270 DEG  C., while allowing water to escape, to form a high polymer.  The molten polymer may be aged by standing for half an hour or more in an inert atmosphere.  Apparatus is described for carrying out the process continuously or with an intermediate solidification of the initial product, with circulation of the water in the first stage (see Group III).  The polymerization of caprolactam using up to 5 per cent water in the first stage is described.ALSO:Lactams are polymerized by feeding a mixture of lactam and water from a mixing <PICT:0746374/III/1> <PICT:0746374/III/2> vessel 1 to a vessel 11 where it is heated at atmospheric pressure for at least one hour at 130-200 DEG C., steam being partly vented at 6 and partly condensed at 15 and returned to the vessel 13.  The resulting intermediate product, which preferably has a melting point of above 100 DEG C. is then fed to a polymerization tube 17 where it is maintained at 210-270 DEG C. for 8-20 hours to form a high polymer.  The molten polymer is finally aged in a vessel 20 out of contact with oxygen for half an hour or more.  The apparatus may be operated continuously. In a second apparatus, (Fig. 2, not shown), part only of the lactam is heated with water, the product being mixed with the remainder of the lactam and passed to the polymerisation tube.  In a third apparatus, Fig. 3, molten lactam and water are fed by screw conveyer 32 and pipe 28 respectively to the heating vessel 25 the intermediate product being discharged through a perforated plate 48 into a vessel 29 where it solidifies.  The intermediate product is later taken in a molten or broken-up state to the polymerization tube 30.