baber/WOPTO huggingface dataset:
Patent GB-1254968-A (GB)
Title: Improved hydrocarbon separation process
IPC: B01D11/04
Filed: 1969-10-28
Abstract: 1,254,968. Separating straight chain hydrocarbons by adsorption. TEXACO DEVELOPMENT CORP. 28 Oct., 1969 [31 Oct., 1968], No. 52643/69. Heading B1L. [Also in Division C5] Gaseous straight chain hydrocarbons are separated from a petroleum fraction, e.g. C 10 -C 20 , using a molecular sieve, e.g. Type 5A. e.g. sodium calcium aluminosilicate, in a cyclic vapour phase process which includes the steps of adsorption, purging and desorption, the latter two steps being carried out using the same medium, viz one comprising a straight chain hydrocarbon mixture composed of a major amount of at least one straight chain hydrocarbon having 5 to 7 carbon atoms less than the lightest straight chain hydrocarbon of the petroleum fraction, and a minor amount of a straight chain hydrocarbon having 1 to 3 carbon atoms less than the lightest straight chain hydrocarbon. Examples of the medium given are n-heptane and n-undecane. As shown a mixture of straight and non- straight hydrocarbons is fed from pipe 10 to adsorption tower 14 mounted at elevated temperature and pressure. The straight chain components are selectively adsorbed while effluent exits via pipe 16 to a fractionater 18. The non-straight hydrocarbons exit via line 21 whereas any desorbing medium (from a previous desorption step) is recycled via line 19. At the purge stage 14A the tower is depressurised and the adsorbent is purged countercurrently with desorbing medium added from lines 40, 42, 44. Purge effluent is collected in purge accumulator 54 before being recycled. At the desorption stage 14B the tower is repressurised above that used in the adsorption step and desorbing medium added via line 43. The effluent is separated by fractionator 60 into desorbing material which is recycled via line 62, and straight chain hydrocarbons which are collected via line 64. Three towers may be used or each stage may have more than one tower in parallel.
Patent GB-1421337-A (GB)
Title: Apparatus for detecting variations in the magnitudes of physical quantities
IPC: G08B17/11
Filed: 1972-11-15
Abstract: 1421337 Measuring electrically R GUILLEUX 15 Nov 1972 [15 Nov 1971 31 Dec 1971] 52690/72 Headings G1N and G1U. Apparatus for detecting changes of a sensed quantity e.g. temperature comprises a sensing element 1 in the form of a temperature-sensitive resistor or a chain of diodes, an amplifying  transistor 4 receiving potential variations due to the sensed temperature changes and providing corresponding potential changes to a detector device AD2 and via RC circuit 9, 10 to a high input impedance active element in the form of an F.E.T. 12 from which an output voltage is fed to a threshold detector AD1 and a voltage is fed back by a negative feedback path F-B to the base of transistor 4 whereby the detector AD2 will receive signals indicative of rate of change of the sensed temperature while detector AD1 senses the crossing of a predetermined threshold by the sensed temperature. In an alternative embodiment Fig. 2 the sensing element is an ionization chamber 1a including a radio-active source 1b from which the output potential is connected via the baseemitter path of transistor 15 to an amplifier in the form of F.E.T. 16 and thence to point H to which an alarm device is connected to detect rapid changes. The output potential is fed also to F.E.T. 12 via zener 17, to provide a voltage offset, and R-C delay 9, 10 the output voltage from this F.E.T. being fed back to the base of F.E.T. 16 to compensate slow changes of output potential from the ionization chamber.
Patent GB-1237786-A (GB)
Title: Process for the production of phthalic acids
IPC: C07C51/265
Filed: 1968-11-08
Abstract: 1,237,786. Phthalic acids. CHEMISCHE WERKE HULS A.G. 8 Nov., 1968 [11 Nov., 1967], No. 53018/68. Heading C2C. A phthalic acid is obtained by catalytic oxidation with molecular oxygen of the corresponding dialkylbenzene or a dialkylbenzene carrying substituents in the alkyl groups in an aliphatic carboxylic acid having up to 8 carbon atoms or a mixture of such acids using a heavy metal/ bromine catalyst, the process having the following features:- (a) The oxygen is used in excess so that the offgas throughout the oxidation contains oxygen; (b) The catalyst is cobalt bromide or a mixture of a bromine compound and a soluble cobalt compound; and (c) The concentration of intermediate oxidation products formed during the reaction is kept below 30 gm./litre of reaction solution.
Patent GB-533477-A (GB)
Abstract: 533,477. Paper bottles &c. FLACONS SPIRALES SOC. ANON SOC. HOLDING LUXEMBOURGEOISE. Nov. 10, 1939, No. 29781. Convention date, Nov. 10, 1938. [Classes 18 and 66] Bottles and like containers are formed by placing on the end of an appropriately shaped, preferably collapsable, mandrel a cardboard or like sleeve 1, Fig. 6, surmounted by a capsule 2, attaching the end of a flexible paper band to both parts and winding it on the mandrel to form the body portion 8, the turns being secured together for instance by glueing ; the container is filled through the open end which is then closed by a base 12 attached for instance by crimping the end 15 of the body wall around it. For the production of container bodies of non- cylindrical form the band employed may be creped, as indicated at 20. The container is opened by cutting through the body wall at 16 enabling the capsule and attached wall portion, which may be made of additional thickness as indcated at 18, to be removed from the end, the removed portion serving as a re-closure means. As in the cylindrical container shown in Fig. 12 the sleeve itself may be provided with an end 21 which may be formed with openings 22 for the distribution of contents such as powder from the opened container. Containers intended for liquids are coated internally with wax &c. 23, Fig. 14, and the capsule may be formed with an annular channel 24 adapted to be filled by the wax.
Patent GB-1462882-A (GB)
Title: Drainage apparatus
IPC: A61M1/00
Filed: 1974-04-03
Abstract: 1462882 Drainage apparatus SHERWOOD MEDICAL INDUSTRIES INC 3 April 1974 [6 Aug 1973] 53357/75 Divided out of 1462881 Heading A5R The subject matter of this specification is identical with that described in Specification 1462881, but the claims are concerned with a plastics member 8 having at least one integral partition wall (21a) Fig. 2, (not shown), an index mark 89 on the member, a tube 87 connected with a drainage fluid inlet (19) and extending below the mark 89 and a gas outlet 22a.
Patent GB-1206129-A (GB)
Title: Improvements relating to oxide-free contacts for silicon bodies
IPC: B01J19/12
Filed: 1967-11-23
Abstract: 1,206,129. Semi-conductor devices. GENERAL ELECTRIC CO. 23 Nov., 1967 [27 Dec., 1966], No. 53402/67. Heading H1K. [Also in Division C7] Silicon, e.g. in the form of a transistor, is coated with e.g. Au, Cu or Ni by applying a photodecomposable source of the metal in a solution containing hydrofluororic acid, and then illuminating the solution in selected areas. In an example a solution of 0À1N-chlorosuccinimide in methanol with gold immersed therein is exposed to radiation to form a complex gold chloride solution. HF is added to the solution in an amount of 1 to 2 mls to 100 mls of the solution. After immersion for 10 to 15 minutes the solution is photo-decomposed for 15 minutes in selected areas.
Patent GB-1261430-A (GB)
Title: Modulator circuit arrangement
Inventor: MACK ZDENEK
IPC: H03C1/58
Filed: 1969-10-31
Abstract: 1,261,430. Amplitude modulation. TESLA NARODNI PODNIK. 31 Oct., 1969, No. 53516/69. Heading H3R.  A suppressed carrier modulator for minimizing unwanted frequency components has the form shown in Fig. 3. The modulation signal f m  is balanced by varying resistors R a , R b  and the carrier f 0  and its harmonics are balanced by varying capacitors C e  ... C h .
Patent GB-1284783-A (GB)
Title: Process for the formation of polymer images from photographic images
IPC: G03F7/028
Filed: 1969-11-03
Abstract: 1284783 Polymerizing or photographic emulsion layers FUJI PHOTO FILM CO Ltd 3 Nov 1969 [2 Nov 1968] 53883/69 Heading C3P [Also in Division G2]  Polymeric images are produced by developing in the presence of water and a vinyl or vinylidene monomer an image-wise exposed silver halide emulsion with a reducing agent which is an o-dihydroxy benzene, o-aminophenol, ophenylene diamine or pyrogallol, such compounds may be further substituted, pyrogallol red or alizarin. The invention also comprises a developer comprising a reducing agent as above and a vinyl or vinylidene monomer, an itaconate or a maleate. The reducing agent and the monomer(s) may be in the emulsion or the developer and the polymer image may be developed by washing off the unpolymerized areas and/or dyeing the image. In the examples sodium acrylate and methacrylate are used as monomers.
Patent GB-1407063-A (GB)
Title: Partition strips for containers
IPC: B29C67/20
Filed: 1972-11-22
Abstract: 1407063 Partitions CUTTING EQUIPMENT LEASING Inc 22 Nov 1972 [18 May 1972] 54057/72 Heading B8P [Also in Division B5] A slotted partition strip of expanded polystyrene has all its edges of a higher density than that of its planar faces. The partition strips are sawn off the end of a rectangular block of expanded polystyrene, the top, bottom and longitudinal sides of which are formed by hot wire cutting and in which longitudinal slots are cut by hot wires.
Patent GB-1204861-A (GB)
Title: Improvements in or relating to the development of electrostatic images
IPC: G03G13/08
Filed: 1967-11-29
Abstract: 1,204,861. Cascade development. FUJI SHASHIN FILM K.K. Nov. 29, 1967 [Nov.29, 1966], No.54419/67. Heading G2H. Latent electrostatic images are developed by feeding a toner and its carrier, and a material having a smaller apparent density than and at least the same size as said carrier and having an electrically conductive surface, to form a mixture on the surface bearing the electrostatic image, and effecting vertical or horizontal movement of said surface to produce a conductive layer over a toner-carrier layer in contact with said surface. The conductive material may be (i) foamed polystyrene or glass beads coated with silver or aluminium (ii) hollow glass or plastic ball made of polystyrene or polyethylene coated with silver or copper (iii) foamed silver paste (iv) small lengths of aluminium tube (v) two hemispherical shells of aluminium welded to form a sphere see Fig. 4c (vi) phenoxy resin polystyrene, polyethylene, PVC, a polyamide or polymethyl methacrylate pellets coated with silver (vii) plastic tubes coated with copper or (viii) a pellet as in Fig.4d. The carrier may be glass, lead or copper coated with nitrocellulose and the toner powdered carbon and polystyrene. The image may be transferred.
Patent GB-1360758-A (GB)
Title: Fastening means which is for joining a polymeric member to a bolt type fastener
IPC: F16B5/02
Filed: 1972-11-30
Abstract: 1360758 Bolted joints FORD MOTOR CO Ltd 30 Nov 1972 [3 Dec 1971] 55237/72 Heading F2M A joint assembly for securing a polymeric structural member 11 or 49 to another structural member 13 or 51, respectively (Figs. 1 and 2, respectively) comprises a bolt 15 or 43, first, second and third rigid members, the first of which may be the structural member 13, Fig. 1, and a resilient member 29 or 47 inserted between the second and third rigid members 25, 27 or 45, 35, while the polymeric member 11 or 49 is inserted between the first and second rigid members 13, 25 or 37, 45, the bolt being passed through aligned apertures in the assembly and tightened such that a substantially constant force is exerted on the polymeric member 11 or 49 to prevent it from creeping. As shown, the second and third rigid members in the first embodiment are discs having serrations on their faces engaging the polymeric member 11 and resilient member 29, whereas in the embodiment of Fig. 2, the first and third rigid members 35, 37 are united at one side by an integral deformable web 33, the second rigid member 45 being in the form of a disc and all three rigid members having serrations to grip the resilient member 47 and the polymeric member 49. The bolt may include a shoulder (55, Fig. 3, not shown) beyond which is a smaller diameter threaded end portion (59) engaging a threaded aperture (65) in the first rigid member (67), so that the degree of compression of the resilient member and the polymeric member is limited to a predetermined amount by engagement of the shoulder with the first rigid member.
Patent GB-1411899-A (GB)
Title: Die sawing machine moulding machine with a sand scraper
IPC: B23D51/00
Filed: 1973-11-29
Abstract: 1411899 Reciprocating saws J DE LANAUZE 29 Nov 1973 [11 Dec 1972] 55408/73 Heading B5L A machine for sawing slots in curved die boards comprises a shaft 18, Fig. 1, means for supporting a board 3 coaxial with the shaft 18, a collar 28, Fig. 4, freely mounted on the shaft, a reciprocable saw assembly 36 mounted on the collar and movable radially between an inner inoperative position and an outer operative position, Fig. 4, a cylindrical guide 30 coaxial with the shaft and connected to the collar 28 and positioned radially outward of the board, and a radial guide 58 for a saw blade 68 of the saw 36 mounted on the guide 30 for receiving and guiding the blade 68 and for directing the blade in any direction in accordance with a pattern to be cut in the die board. In operation the saw assembly 36 is moved along guides 40, 42 to its inoperative position by an hydraulic or pneumatic rotary motor actuating a mechanical linkage. A board 3 to be cut is then secured to adjustable mounts 20, Fig. 1, on the shaft 18. The board has predrilled holes at the starts of cutting lines. Such a hole is located above the saw blade and the saw assembly is moved to its radially outward operative position in which the blade 68, Fig. 5, passes through the hole and enters a guide slot 66 in a handle 64 and integral disc 60. The disc is rotatable in a guide 62 secured to the guide 30 so that it can be turned to orient the saw blade 68 in a selected position by the handle 64. After cutting, the saw assembly is withdrawn and the cutting operation repeated for a further slot if required.
Patent GB-1254878-A (GB)
Title: High voltage generator
Inventor: HERB RAYMOND GEORGE
IPC: H02N1/08
Filed: 1968-11-22
Abstract: 1,254,878. Electrostatic generators. NATIONAL ELECTROSTATICS CORP. 22 Nov., 1968, No. 55482/68. Heading H2A.  In a belt-type generator e.g. for a particle accelerator, each of one or more belts comprises a series of spaced, conductive, charge-carrying pellets insulated from each other. The pellets 26, Fig. 2, may be strung along an endless insulating cord 28 or alternatively, Fig. 9, pairs of pellets 178 separated by insulators 180 may form links in a chain-type belt. In the generator shown in Figs. 1 and 2, the belt 22 is carried by pulleys 52, 54 and driven by a motor 58. A tubular high voltage electrode 18 surrounds the centre portion of the belt and is supported by shielding rings 104 carried and separated from each other by insulators 21, the end rings being attached to earthed support walls 14, 16. The belt thus comprises four sections 41 . . . 44, sections 41, 43, carrying positive charges to the electrode 18 and the sections 42, 44 carrying negative charges away from electrode 18. The positive charges are applied to the pellets from a power supply 70 through charging electrodes comprising spaced coaxial sleeves 66, 68, Fig. 2, the sleeve 66 contacting the pellets so as to transfer the charge thereto and the sleeve 68 being spaced from the pellets and earthed so that the field therein displaces the charge on the pellets to the leading edge and reduces sparking as the pellets leave the sleeve 66. Similar electrodes are used for applying negative charges to the pellets at the beginning of sections 42, 44. At the ends of the sections, the pellets pass through discharge electrodes 88, 86 which are similar to the charging electrodes but with the sleeves reversed. The positive charges may be applied to the pellets inductively and the negative charges removed by conductive pulleys. Fig. 8 shows part of such an arrangement wherein the pulley 152 has a conductive rim 154 connected to an earthed shaft 156 and the positive charges are applied via a tubular or U-shaped electrode 134. A similar intermediate pulley 152a is used inside the electrode 18 for charging and discharging the belt. Corona electrodes such as 160 having associated voltage control electrodes such as 164 are connected to induction electrodes such as 144 to prevent sparking at the pulleys. The corona electrodes may each carry a small amount of radio-active material (192), Fig. 14 (not shown), which provides an ionized path for the partial charge drawn off from the pellets. It is stated that the voltages on all the induction electrodes may be derived from corona electrodes so that the power supply may be dispensed with, the system being self-starting due to stray charges picked up by the pellets.
Patent GB-1508120-A (GB)
Title: Treatment of liquid effluent and sewage
IPC: C02F3/10
Filed: 1974-12-30
Abstract: 1508120 Biological filter packing IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Nov 1975 [30 Dec 1974] 55995/74 Heading C1C A packing for biologically treating waste water (including sewage) in a percolating filter comprises randomly packed extruded tubular pieces of an organic polymeric material, each tubular piece having two concentric walls and being provided with a plurality of vanes which extend between the inner surface of the outer wall and the outer surface of the inner wall. The tubular pieces may have a wall thickness in the range of 0À2 mm to 0À5 mm. Suitable polymeric materials are polyethylene, polypropylene, polyamides, certain acrylic resins and cellulose derivatives, but especially polyvinylchloride. These polymeric materials may be used in the cellular form to reduce cost without reducing rigidity.
Patent GB-1482770-A (GB)
Title: Residual fuel deriving from petroleum crude
IPC: C10G49/18
Filed: 1974-12-31
Abstract: 1482770 Cracking oils G CARDENES ARMAS 31 Dec 1974 [20 April 1974] 56138/74 Heading C5E Gas oil is produced by injecting water into a hot residual fuel oil, derived from petroleum crude, at a pressure equal to or greater than atmospheric pressure, passing the gases and vapours formed as a result of the thermal shock through an expansion chamber and then through a heat exchanger to liquefy the gas oil. Water, together with make-up oil is injected from pipe 8 into hot oil, e.g. at 300 C., in a thermal shock chamber 10. The oil in the chamber 10 is heated by a flame 26 in a chamber 25 from which hot combustion gases pass through pipes 22. The gases and vapours produced in the chamber 10 are expanded in the chamber 6 (from which the heavier components are returned through pipes 27) and pass through pipe 9 to a condenser and a decanter.
Patent GB-1487780-A (GB)
Title: Time interval and/or frequency measuring apparatus and methods
IPC: G04F10/04
Filed: 1974-12-31
Abstract: 1487780 Digital measurement of time intervals and frequency; generating oscillations HEWLETT-PACKARD CO 31 Dec 1974 [28 Jan 1974] 56163/74 Headings H3H and H3B In measuring the duration of a repetitively occurring time interval or the frequency of a signal by counting and averaging pulses passed through a synchronized gate during a plurality of time windows, the phase relationship between the pulses and the windows is time varied to destroy any unwanted synchronism that may occur between the pulses and the windows and thereby improve the averaging. The time variation may be deterministic or random. A circuit for producing random phase variation is shown in Fig. 2, noise generated by a reverse biased Zener diode 81 being amplified and stabilized by the loop 14, 18.
Patent GB-1312384-A (GB)
Title: Fishing reels
IPC: A01K89/033
Filed: 1970-11-26
Abstract: 1312384 Reel brake H K FLEISCHER 26 Nov 1970 [8 Dec 1969] 56314/70 Heading A1A A fishing reel has a braking effect provided by disc brakes and comprises a splined central shaft 26 driven via gear 58 by handle 59 and line spool S which has a pair of longitudinal notches 34 (Fig. 3) along its inner surface. Splined brake discs 37 are mounted on to splined shaft 26 while driven discs 36 with tabs 35 are mounted within spool S. Shaft 26 is journalled in three ball-races 42, 50, 51 and may be moved axially by operating lever 52 which rotates a threaded sleeve 18 attached to the shaft 26. This varies the compression of the stack of brake discs 37 and driven discs 36 until the desired braking effect is achieved. The brake discs 37 may be made of asbestos and concave at both faces. A ratchet mechanism allowing handle 59 and shaft 26 to rotate in one sense only is provided. Handle 59 may be rotated anti-clockwise (Fig. 7) but not in the other direction since the sprung arcuate gear 63 will bear against casing 112 locking gear 58 which is driven by handle 59. A clicking mechanism 70, 71, 73, 74, 75, 76, 78 may also be employed in the reel.
Patent GB-1368177-A (GB)
Title: Constant tensioning devices for flexible elongate articles
IPC: B65H51/10
Filed: 1972-12-07
Abstract: 1368177 Yarn supply; knitting-machines; looms J DUPLESSY 7 Dec 1972 [10 Dec 1971] 56448/72 Headings D1C and D1E A yarn supply system comprises two supports 1 spring-urged apart, each carrying arms 7a mounted by springs 7 for directing the yarn in a zig-zag path, and a variable speed motor 10 for advancing the thread, responsive to the relative position of the supports. The supports pivot on parallel axes 2, or a common axis and circular rheostats 13 control the motor. The arms carry eyelets 7b or rollers and move between stops 8. Sudden variations in yarn demand during a cycle of operation is taken up by pivoting,of the arms. If the yarn tension increases the supports are pulled closer together with a corresponding increase in the motor speed. The yarn package 9 is mounted on the shaft of the motor.
Patent GB-1350740-A (GB)
Title: Package of snuff
IPC: B65D75/42
Filed: 1972-12-07
Abstract: 1350740 Packaging snuff J O JOHANSSON 7 Dec 1972 [28 March 1972] 56476/72 Heading B8C Snuff is packaged in packets formed by perforated transverse seams 3 in a pair of strips of material sealed at their longitudinal edges.
Patent GB-1244330-A (GB)
Title: Caravan trailer
Inventor: CYRIS KONSTANZ
IPC: B60Q1/50
Filed: 1968-11-29
Abstract: 1,244,330. Convertible vehicles. K. CYRIS. 29 Nov., 1968 [7 Dec., 1967], No. 56674/68. Heading B7B. A vertically movable roof section 3 is carried by an end panel 4 and two side links 5 pivoted to the roof part 3 and the vehicle 1, the part 3 being retained in an elevated position by the panel 6 hinged to the vehicle at D and engaging a transverse recess in the roof part 3.
Patent GB-1352900-A (GB)
Title: Electrohydraulic pulse motor
IPC: F15B9/14
Filed: 1971-12-07
Abstract: 1352900 Fluid-pressure servomotor systems FUJITSU Ltd 7 Dec 1971 [26 Dec 1970] 56681/71 Heading G3P An electro-hydraulic pulse motor has the output shaft of an electric pulse motor 21 connected to the spool of a four-way pilot valve 22 by reduction gearing 15, 16. The back lash in the gearing is adjusted by a rotatable ring 20 having two circular internal surfaces which are respectively fitted to the electric motor and valve and are eccentric to one another. The pilot valve is coupled to an axial-piston rotary hydraulic motor by a screw-nut coupling providing feedback.