baber/WOPTO huggingface dataset:
Patent GB-1507997-A (GB)
Title: Process for the oxidation of o-xylene and naphthalene to phthalic anhydride
IPC: C07D307/89
Filed: 1975-07-25
Abstract: 1507997 Preparation of phthalic anhydride BASF AG 25 July 1975 [26 July 1974] 31155/75 Addition to 1444799 Heading C2C Phthalic anhydride is made by the oxidation of o-xylene or naphthalene with O 2  in the presence of a supported catalyst comprising an inert, non-porous carrier and applied thereto a layer of catalytically active material which contains 1-40 wt. per cent V 2 O 5  and 60-98À85 wt. per cent anatese, the V 2 O 5  content being 0À05-4 wt. per cent based on the supported catalyst, and the active material containing more than 0À15 up to 1À5 wt. per cent, based on anatase, of Rb or Cs as an oxide. The reaction may be at up to 500 C. with an hourly throughput per litre of catalyst of 1À5-6 Nm<SP>3</SP> air and charged with 40-150 g./Nm<SP>3</SP> of o-xylene or naphthalene.
Patent GB-1493277-A (GB)
Title: Pie making machines
IPC: A21C9/08
Filed: 1976-07-26
Abstract: 1493277 Removing scrap pastry from conveyors BAKER PERKINS HOLDINGS Ltd 26 July 1976 [25 July 1975] 31168/75 Heading A2A Scrap pastry 21 is removed from the endless conveyor of a pie making machine by means of a stripping roller 20 which rotates so that its surface moves in opposition to the conveyor band.
Patent GB-520743-A (GB)
Title: Improvements in or connected with conveyors of the endless belt type
IPC: B65G15/60
Filed: 1938-10-31
Abstract: 520,743. Endless-belt conveyers. MAVOR & COULSON, Ltd., and BUCHANAN, G. M. Oct. 31, 1938, No. 31384. [Class 78 (i)] Endless-belt conveyers are formed with one part of the run offset laterally from the other part by passing the belt round one or more guides of helical or scroll form while it is at the same time subjected to the driving tension. Fig. 1 illustrates a belt passed round two scroll members B so that the two runs A<SP>1</SP>, A<SP>2</SP> are offset and parallel, while Fig. 2 shows a similar effect produced by a complete turn of the belt round one member B. Fig. 4 shows one scroll member formed by a series of barrelshaped rollers 3 arranged in helical formation and each adapted to swivel to adjust itself to the surface of the twisted belt. Fig. 7 illustrates the adaption of the invention to conveyers used in mines. The belt A passes between two fixed offset terminal positions 10, 11, and is deflected laterally by the scroll frame 9 at the loading point immediately at the rear of the cutting-machine C. The frame 9 carries two scroll members at different elevations for the carrying and return runs of the belt respectively. As the cutting-machine progresses, the frame 9 can be moved along after it without moving the terminal points. Specifications 411,256 and 493,946, [both in Group XXI], are referred to.
Patent GB-372237-A (GB)
Title: Improvements relating to sparking plugs for internal combustion engines
IPC: H01T13/50
Filed: 1931-11-12
Abstract: 372,237. Sparking-plugs. PREGEL, B., 27, Avenue de l'OpÚra, Paris. Nov. 12, 1931, No. 31396. Convention date, Nov. 12, 1930. [Class 7 (iv).] Radium or a radio-active substance is incorporated in the insulation. Varnish may be applied to prevent loss of the radio-active material. According to the Specification as open to inspection under Sect. 91 (3) (a) the electrodes may also contain radio-active substances. This subject-matter does not appear in the Specification as accepted.
Patent GB-1316016-A (GB)
Title: Elastrostatic air filter
IPC: B03C3/155
Filed: 1971-07-05
Abstract: 1316016 Air filters C W SOLTIS 5 July 1971 [9 Feb 1971] 31445/71 Heading B2J [Also in Division F4] In an electrostatic air filter, air to be filtered passes through a dielectric filter layer across which a high voltage ionizing field is imposed so as to bombard particles carried by the air and cause them to be precipitated onto the material of the filter layer. As shown, an air filter unit for use in warm air central heating or air conditioning installations comprises a front conducting plate or screen 34 for example of perforated aluminium, a prefilter layer 20 for example of expanded aluminium foil with a sticky coating, two dielectric filter layers 22, 24 for example of polyester fibre or open cell plastics foam material such as polyurethane foam with a galvanised steel wire screen 26 sandwiched therebetween and a rear screen 36 similar to screen 34 except that the openings therein may be smaller. The parts 34, 20, and 36 are earthed and the screen 26 connected to a high potential low current source for example 3000v at 1 ma. Particles down to 1Á are effectively filtered. The parts 32, 28 are of P.V.C. More filter layers may be provided and the filter may be constructed as a roll.
Patent GB-1187508-A (GB)
Title: Improvements relating to Closure Caps for Containers
IPC: B65D41/42
Filed: 1967-07-07
Abstract: 1,187,508. Caps for containers. AMERICAN FLANGE & MFG. CO. Inc. 7 July, 1967 [15 Aug., 1966], No. 31474/67. Heading B8T. A container capsule of metal has weakened tearing lines (5), Fig. 1 (not shown), which extend across its top 1 and skirt 2 to form part of a tear strip 3 having its lower end formed as a tearing ear 1O and including a neck part 11 and a ring for receiving a finger of the person opening the container. The edges of the ring are turned under as shown in Fig. 4, the folded portion 14 merging into the edge 11a of the neck part 11. Notches 7 aid in starting the tearing action.
Patent GB-260799-A (GB)
Title: Improvements in bungs for casks, and the like
IPC: B65D39/08
Filed: 1925-12-15
Abstract: 260,799. Cox, W. V. Dec. 15, 1925. Bungs.-To facilitate breaking up, and consequent ready re moval of a bung from a barrel, the bung 1 is recessed on the underside. The recess 5 is about half the depth of the bung and about half the diameter thereof. Specification 10024/99 is inferred to.
Patent GB-230902-A (GB)
Title: Improvements in and relating to the screening of electric circuits
IPC: F02P7/02
Filed: 1923-12-17
Abstract: 230,902. Bairsto, G. E., and Haydon, F. G. Dec. 17, 1923. Rotary distributors; bases. - Relates to means for screening electric circuits such as ignition systems for internal combustion engines so as to prevent disturbances in adjacent wireless or other electrical apparatus and comprises telescoping cylindrical metallic sleeves 5, 6 adapted to clamp between them the ends of metallic braiding 4 surrounding the cable. Where a cable is to be connected to the distribution of a magneto, the sleeve 5 may be provided with an extension fitting in a socket 10, Fig. 5, provided in a split metallic screen 11 surrounding the distributor. In an alternative arrangement, Fig. 6, in which the distributor screen is secured to the distributor insulation 39 by studs 19, the cables are secured by union nuts 15 engaging flanges provided on the sleeves 5, 6 and screwing over sockets 13 provided on the distributor screen, thus securing metallic connection between the cable braiding 4 and the screen 14, and, at the same time, engaging the cable cores 1 with corresponding needle point contacts 35.
Patent GB-337181-A (GB)
Title: Method and apparatus for manufacturing lead-headed nails
IPC: B21G3/00
Filed: 1929-10-18
Abstract: 337,181. Swangren, E. V. Oct. 18, 1929. Forging nails ; dies.-Lead-headed nails, Fig. 27, are produced by supporting the nails head downwards in a die, forcing a lead washer over the stem and compressing the washer on the under side and periphery of the nail head. The nails are taken from a shoot 13 and received in notches 6, Fig. 12, in the edge of a wheel 5 rotating on an inclined shaft 4 and transferred by a pivoted finger 57 to notches in a turret wheel 7, the heads of the nails resting on the table 1 and the nails being retained in the notches by a guard 59. Lead washers are supplied dawn a shoot 18, Figs. 3 and 5 to notches 17 in the edge of a ring 16 on wheel 7 and supported in position above the nails by a platform 19. When in position opposite the transfer wheel 5, the lead washers are driven halfway down the nail shanks by a spring cushioned hammer 34 working in a casing 40 mounted on a crosshead 60, the washer, which has passed off the platform 19, being held for this operation by a spring plate 26. The nails are next transferred to notches on a second turret wheel 43 and carried thereby to the compressing die 56, which is mounted in a plate 54, rotatable about one of the press columns 49 for easy replacement of the die. The transfer wheel 5 and turret wheel 7, 43 are geared together and rotated intermittently by Geneva wheel mechanism. The compressing punch 68 is carried bv a bush 62 in a bore 61 on the crosshead 60. The bush is free to move upwardly against the action of springs 63 but in the normal operation of the machine is locked to the cross-head so as to move downwardly therewith by a rotary segmental key 71<a> mounted on the cross-head and engaging an opening 72 in the bush. Key 71a has a projecting arm 77 pulled down by spring 78, Fig. 2, and carrying a rod 80 guided in the press head and provided with a spring pressed ring 82. In the normal operation of the press, when the hollow punch correctly engages over the nail point, the downward movement of rod 80 with the cross-head compresses the spring 83 so that it overcomes the pressure of spring 78 thereby lifting arm 77 and locking the key 71<a> with the bush 62, as shown in Fig. 22, If punch 68 fouls the nail point, the bush moves upwards relatively to the cross-head, causing the flat of the key 71<a> to engage the near plate 73 and preventing locking of the bush with the cross-head. The. completed nail is ejected from the die by a rod 85.
Patent GB-630477-A (GB)
Title: Improvements in apparatus for use with portable electrically operated tools
IPC: H02G11/02
Filed: 1947-12-02
Abstract: 630,477. Self winding cable reels. RUSHWORTH, D. Dec. 2, 1947, No. 31769. [Class 78 (ii)] Apparatus for use with portable electricallyoperated tools comprises two self-winding cable reels A, B mounted on a base C above the ground, the reels carrying respectively an electric cable G for supplying power to the tool and a suspensory cable H for taking the strain when the tool is suspended. As shown, the electric cable G and the steel cable H pass from the spring reels A and B through a common guide D to the tool (not shown). Guide D is fixed by arm F to straps E which secure the reels together and which are connected by supports to base C. Alternatively, the reels may be mounted in a cradle which may be pivotally connected to the base C which may have wheels travelling on overhead rails and there may be a second electric cable reel which may be fixed on the base and which pays out cable to permit movement of the base C on its wheels.
Patent GB-1078674-A (GB)
Title: Process and apparatus for the degassing of liquids
Inventor: LEROY JAKOB
IPC: C02F1/20
Filed: 1964-08-06
Abstract: 1,078,674. Degassing liquids by pressure reduction. EDUARD AHLBORN A.G. Aug. 6, 1964, No. 31947/64. Heading B1M. In a process for de-gassing a liquid, e.g. milk, a mixture of liquid and foam is expanded along an elongated flow path to cause partial evaporation of the liquid and is simultaneously cooled along the flow path to cause condensation of the vapour. As shown, a stream K of liquid is pre-heated by passage through plate heat exchangers 5, 6, is further pre-heated by an external medium in heat exchanger 8, and is expanded through a throttle valve 1 into a chamber 2 in which a liquid-vapour foam is formed. The foam is then expanded through throttle valve 3 and passed through heat exchangers 5, 6 in which expansion and partial evaporation continues and condensation is effected by counter-flow heat exchange with the incoming liquid. The foam leaving heat exchanger 6 is further cooled by an external medium K 1  in heat exchanger 6a and then passes to a separator 7 from which the liquid is withdrawn by a pump 4, a further pump being provided for withdrawing air or other gas from the separator.
Patent GB-660078-A (GB)
Title: Electric switch for operation by spring alarm clocks
IPC: G04C21/22
Filed: 1949-12-13
Abstract: 660,078. Clockwork actuation of switches. LE MOINE, H. C., and BAMPER, T. L. Dec. 13, 1949. No. 31955/49. Class 38 (v). A switch for operation by spring alarm clocks comprises a moulded insulating base A having a recess in which a cam H on a shaft B<SP>1</SP> can rotate, the shaft B<SP>1</SP> being connected by a split chuck to the alarm winding arbor and having at its other end a winding key Fig. 2 (not shewn). On release of the alarm, an insulating pushpiece D slidable in the base A is depressed by the cam H so that contact pieces F disengage notches L and a contact strip E on the push-piece D bridges the contacts F. Alternatively, the push-piece D may be reversed so that on operation of the alarm, the circuit is broken. The base is enclosed by a cover and rotation of the device as a whole is prevented by its connection to an electric lead.
Patent GB-320531-A (GB)
IPC: C06F1/20
Abstract: 320,531. Gill, H. A., (Rahe, S. E.). Oct. 22,1928. Cutting-up.-In a machine for making match cards from paper, thin veneer, or other stock, the strips 10 are fed transversely along a table 19 and are picked up singly by a reciprocating plate 22, the front recessed part of which has a series of inclined ribs 37 on an oppositely inclined base 21. The plate carries the stock beneath a set of blades 30, which cut the stock through part of its width, and are interspersed with deeper blades 30<1>, which sever the strip into separate cards. Immediately after the cutting action, the further advance of the plate actuates a roller 47 and depresses a presser 39 which carries a series of inclined ribs 40 which coact with the ribs 37 and separate alternate splints 12. At the same time shoulders 38, 38<1> act to nick the card at the base of the splints. The cards are then inserted in the holders 17 of the carrier 16, and are separated laterally therein by the action of fins 51 mounted at suitable inclinations. The return movement of the plate 22 effects the disengagement of the presser 39 by means of a roller 45.
Patent GB-174480-A (GB)
Title: Improvements in or connected with electric switches
IPC: H01R4/30
Filed: 1920-11-12
Abstract: 174,480. Oldham, O., (trading as Oldham & Son), Oldham, G., and Oldham, J. Nov. 12, 1920. Switches without quick action for use with miners' safety and other electric hand lamps and torches comprise a screw operating - member m mounted in a boss o of the casing and carrying an insulated disc contact r for bridging engagement with two or more spring-pressed plunger contacts i mounted in an insulating - housing f secured to the block a and connected to the terminals of the circuits by means of plates c engaged by the inner ends of the plunger springs j. The plunger contacts may be fitted upon the case of the accumulator.
Patent GB-847255-A (GB)
Title: Improvements in or relating to superheterodyne radio receivers
Inventor: MEDFORD ALBERT ERNEST
IPC: H01P1/213
Filed: 1957-10-15
Abstract: 847,255. Frequency changing circuits; radio receiving systems. GENERAL ELECTRIC CO. Ltd. Oct. 14, 1958 [Oct. 15, 1957], No. 32235/57. Classes 40(5) and 40(6). A superheterodyne radio receiver in which the local oscillator signal and received signal are fed to the frequency changer over a common path, is characterized in that first and second paths, each including a filter, supply the received signal and the local oscillator signal respectively to the common path. The arrangement is such that the second path presents a substantially lower impedance than the first path to spurious signals generated in the frequency changer, whereby such signals are, at least partially, filtered off over the second path. In the embodiment shown in Fig. 1 the aerial system is fed over a coaxial line 1 to a band pass filter 8, the output of which is connected to the point 5. The local oscillator 7 (e.g. as described in Specification 847,254) is similarly connected to the point 5 by the cable 3 and the band stop filter 9, the stop band of the filter 9 corresponding to the pass band of the filter 8. A further cable 4 feeds the two signals into the frequency changer 2. The filter arrangement as shown in Fig. 2 comprises a coaxial line 10 provided with couplings 18 and 19 at either of which the aerial system and local oscillator may be connected respectively. Three stub lines 13, 14, 15 connected to the line 10 constitute the band pass filter 8 and two stub lines 16, 17 connected to the line 10 constitute the band stop filter 9 the filters may be in accordance with Specifications 659,812 and 696,394 in which the stub lines are made up of a number of sections in series, (six for the band pass and five for the band stop filters) the end one having a capacitive termination 28. A further short length of line 20 is connected to the line 10 between the two filters and forms part of the path 4.
Patent GB-761324-A (GB)
Title: Improvements in magnesium base alloys
IPC: C22C23/06
Filed: 1954-11-08
Abstract: Magnesium-base alloys having good mechanical properties when hot or cold contain a mixture of rare earth metals in total from 2-6 per cent the balance being Mg and the rare earth metals being present in the alloys in the following relative proportions: La 25-35 per cent, Nd 40-65 per cent, Pr 8-12 per cent, Sa 0.5 per cent, Ce 2-10 per cent.
Patent GB-957837-A (GB)
Title: Process for developing diazotype copies
IPC: G03C5/18
Filed: 1962-08-22
Abstract: 957,837. Diazotype developer compositions. CHEMISCHE FABRIEK L. VAN DER GRINTER N.V. Aug. 22, 1962 [Aug. 31, 1961], No. 32338/62. Heading G2C. A developer composition for diazotype material comprises phloroglucinol as the principal coupling component and potassium and/or lithium maleate as the principal buffer and has a pH in aqueous solution between 6.5 and 7. The maleate may be added as such or formed in situ from the acid and alkali. Optional ingredients mentioned are reducing agents e.g. thiourea; stabilizers e.g. hydroquinone mono-sulphonic acid, minor proportions of other couplers, e.g. resorcinol, and buffers e.g. disodium phosphate and wetting agents. The pH may be adjusted with maleic or other acid or acid-reacting salt. The developer may be formulated as a solution or in powder or tablet form. It is particularly suitable for the "semi-wet" development of diazotype material sensitized with a compound of the formula wherein X is an anion, R 1  and R 2  are methyl or ethyl groups or R 1  is a methyl and R 2  a cyclohexyl group, and Ar is a phenyl group with at most two substituents, such materials being described in Specifications 919,037 and 919,812. Specifications 425,235, 544,882 and 957,836 also are referred to.
Patent GB-302486-A (GB)
Title: Improvements in or relating to dyeing machines
IPC: D06B5/20
Filed: 1927-12-01
Abstract: 302,486. Sykes & Sons, Ltd., J., and Sykes, E. P. Dec. 1, 1927. Hank type; dipping-apparatus. -A machine, particularly for dyeing hanks in small quantities applicable also to the dyeing of artificial or natural silk, or to the dyeing of loose stock, rags, garments &c., comprises counter balanced bent levers e pivoted at c and acted on by driven cams g which alternately raise the material carried by .the levers e clear of the liquid, and allow the material to be submerged. Hanks are carried by rods w, w<1> the rod w being partially rotated at each elevation by a finger y<4>. Other goods are contained in a cage supported on the levers e. The levers may be held raised and out of the paths of the canes by a chain r, operated by a handle t', and a ratchet and pawl v. A series of apparatus as above may be. placed in line, with the cams on a common shaft but in different angular positions so as to balance the drive. A mild straightening action is produced in hanks, owing to the outer end of the lever e emerging first from the liquor, the liquor lifted on the hanks running along them.
Patent GB-334432-A (GB)
IPC: G10K11/35
Filed: 1929-10-24
Abstract: 334,432. Electroacustic Ges. Dec. 3, 1928, [Convention date]. Subaqueous sound-signalling apparatus.-Subaqueous sound transmitting and receiving devices are protruded from the hull of a ship by means of a liquid operating medium, the entire circulation system of the operating medium being subjected to the pressure of the external water. A sword-shaped body e carrying the transmitting and receiving devices g is connected to a piston f sliding in a cylinder a having a cover c and a stuffing-box d. A centrifugal pump i causes the in-and-out movement of the body e. A cock l is connected on one hand to the pressure side and on the other hand to the suction side of the pump i, and is so arranged that the pressure and suction sides of the pump are connected alternately with the upper and lower chambers n, m of the cylinder a. The suction side of the pump is connected to the external water through a pipe o. At the highest point on the pressure side of the pump is an air-remover p communicating with the external water through a pipe q. An automatic valve cuts out the air-remover when all the air has escaped after the pump is started. The tubes o, q are provided with cocks r, s which are normally open.
Patent GB-1438193-A (GB)
Title: Gas-sensor and method for detecting oxidizable gas
IPC: G01N27/12
Filed: 1973-07-06
Abstract: 1438193 A complex metal oxide as a gasdetecting element HITACHI Ltd 6 July 1973 [8 July 1972 27 April 1973] 32379/73 Heading C1A [Also in Division G1] A gas-sensor for detecting an oxidizable gas, comprisies a sensing element whose resistance changes in the presence of the said gas and means for indicating a change in the resistance of the said sensing element, in response to the presence of said gas, the said element being formed from a complex metal oxide having the K 2 MgF 4 -type crystal structure and represented by the general formula A 2-x A<SP>1</SP> x BO 4-# , wherein A is at least one rare earth element of atomic numbers from 57 to 71, yttrium, and hafnium, A<SP>1</SP> is at least one alkaline earth metal, B is at least one transition element of atomic number from 21 to 30, O is-oxygen, x is in the range of 0 # x # 2, and 8 is a nonstoichiometric parameter up to 0À5. The sensor can be used for detecting and estimating a variety of oxidizable vapours and gases, including ethanol, carbon monoxide and nitrogen oxides.
Patent GB-970242-A (GB)
Title: Liquid dispenser
IPC: G01F11/26
Filed: 1963-08-16
Abstract: 970,242. Delivering measured quantities of liquid. H. A. PAYNE. Aug. 16, 1963, No. 32412/63. Heading B8N. A device for dispensing a measured quantity of liquid from a bottle 16 comprises a measuring chamber 18 in a bulb 10 and a siphoning tube 26 adjustably mounted by means of a thread on the tube engaging with a corresponding thread in a rotatable knob 28 in order to vary the amount of penetration of the tube into the chamber, the degree of penetration being visually indicated by means of a pointer 48 on the knob co-operating with a dial 46 on the bulb. The knob 28 is rotatably mounted in a sleeve 32 secured to the bulb 10, the sleeve having a lug 34 adapted to engage in a groove 36 in the siphon tube in order to prevent relative rotation and is provided with the dial 46.
Patent GB-423625-A (GB)
Title: Improvements in machinery for making paper bags and the like
IPC: B31B23/00
Filed: 1933-11-21
Abstract: 423,625. Making paper bags &c. BEASLEY, H. H., and FRENCH, G. W., Winterstoke Road, Ashton Gate, Bristol. Nov. 21, 1933, No. 32489. [Class 94 (ii)] A machine for making paper bags &c., in which the tubular sheet material 1 is fed over a former plate 2 having a shearing edge 6 and cut into lengths, is provided with means, e.g. a roller 10 extending over the whole width of the plate 2, bearing on the material 1 and the plate 2 between the shearing edge 6 and the feed rollers 3, 3<a> to stabilize the former plate or to prevent deleterious vibrations therein when the tube is sheared against the edge 6 and the edge 8 of the breaker plate 9 by the contact therewith of the beater arm 7. A further stabilizing roller 11 is preferably positioned on the other side of the former plate as near the shearing edge 6 as feasible.