baber/WOPTO huggingface dataset:
Patent GB-914393-A (GB)
Title: Backwash filtering system
IPC: B01D35/12
Filed: 1961-09-13
Abstract: 914,393. Filters in parallel; gravity-separation apparatus. HARMS. H. H. Sept. 13, 1961, No. 32788/61. Class 46. Machine-tool coolant enters, by a pipe 11, Fig. 1, a perforate pipe 14, Fig. 2, within a settling tank 10, and flows under a baffle 16 in a first compartment 15 into weir troughs 17, whence it flows into a second compartment 18. Solids from these compartments are removed at 45, Fig. 1, by scraping conveyers 22, 24, Fig. 2. Liquid is withdrawn from compartment 18 by a pump 55 at 51, Figs. 1 and 2, and is discharged to four filter casings 80 each having an inlet valve 71. Filtrate passes to a manifold 100 and returns to the machine tool 12 via a pressure relief valve 101. Each filter casing 80 contains a pleated cylindrical element through which liquid flows inwardly; an extra outlet 115 communicates with the outside of the element. For most of the time all the filters are filtering, but periodically and sequentially each is backwashed for a short period by means of a sequence controller housed at 180, Fig. 1, and driven by the conveyer-operating motor 47. The sequence controller governs a solenoidoperated valve, 175 for each filter which valve acts to admit compressed air from a line 200, Fig. 1, to one end of a cylinder 171, Fig. 2, thereby closing inlet valve 71 and opening a valve 121 in the extra outlet 115. Thereupon filtrate from manifold 100 backwashes the relevant filter; the residue and liquid discharge through valve 121 into a seepage tank 130 located within a third compartment 20 having a scraping conveyer 26, of the settling tank 10. Liquid from the seepage tank 130 seeps through a row of holes 132 at its base into compartment 20, and overflows thence at 21 into compartment 18 for settlement and return at 51 to the filters. The holes 132 are kept clean on the inside by a conveyer 150 (which also dumps settled solids at 150a) and have adjustable obturators on the outside. In Fig. 4 (not shown), only three filters are provided and the base of the seepage tank is triangular in elevation.
Patent GB-1555890-A (GB)
Title: Optically active n substituted pyrrolidines
IPC: C07D207/16
Filed: 1977-08-04
Abstract: The optically active pyrrolidines of formula: <IMAGE> are obtained from (R)- or (S)-glutamic acid, by formation of an aldimine with an aldehyde R''CHO, reduction of the imino group to an amino group, cyclisation by the action of an acid, esterification of the carboxyl, conversion of the ester to an amide and reduction. The compounds can be used in the synthesis of optically active benzamides, which have a therapeutic activity, of formula: <IMAGE> To this end, they are condensed with a 2-methoxy-5-X-benzoic acid or one of its derivatives. None of the reactions affects the absolute configuration of the asymmetric carbon; thus, (S)-glutamic acid leads to an (S)-amine I and to an (S)-benzamide II. The symbols R', R'' and X are defined in Claims 1 and 8.
Patent GB-1047596-A (GB)
Title: Device for concentrating x-rays and other radiation
Inventor: FRANKS ALBERT
IPC: G21K1/06
Filed: 1962-08-27
Abstract: 1,047,596. X-ray collimators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 27, 1963 [Aug. 27, 1962], No. 32893/62. Heading G2J. A device for focusing of collimating X-rays or neutrons comprises a series of closely spaced reflectors with curved cross-sections the curve being gentle enough to produce multiple reflections along its length and such that the tangents at the ends are substantially parallel to the incident and final reflected rays. Preferably the reflectors are arcs of a set of concentric circles and the source is slightly nearer the device (S 1  in Fig. 2) than the focus of the tangents S. The device may be made by winding a flexible reflector into a scroll on a mandrel and then machining the scroll to the required shape, the spaces between the turns of the scroll being filled with wax before machining. The material may be a thin glass strip having a bead on each edge to act as spacers and the strip may be heated to near the softening point immediately before winding.
Patent GB-734954-A (GB)
Title: Improvements in despatch apparatus
IPC: B65G51/28
Filed: 1952-12-30
Abstract: 734,954. Mechanical despatch apparatus; endless conveyers. SQUIRE, J. W. Dec. 24, 1953 [Dec. 30, 1952], No. 32975/52. Class 78 (1). In a despatch apparatus of the kind comprising a tubular conveyer system equipped with carriers for the transmission of cash, small articles and the like from station to station, a conduit is provided for an endless conveyer adapted to engage a carrier, and in association with said conduit, a conduit for guiding a carrier during its movement from one station to another with or without the assistance of the conveyer, and another conduit which is so formed as to enable a carrier deposited therein to be acted upon by the conveyer and conveyed in the reverse direction. In the embodiment shown, the conveyer comprising an endless belt 8 passing round pulleys 6, 7 and provided with abutments 15, operates in a metal casirig 1 consisting of channel-shaped components la spaced to form slots 2, 3 between their inturned flanges 1b. The pulley 7 is driven through gearing by an electric motor 10. Secured to the right side of the casing 1 is a metal " lift " tube 18 provided on its inner side with a slot 19 registering with the slot 3 and through which the abutments 15 may protrude. This tube is also formed with an opening 20 in which is fitted a pivotally mounted chamber 21 adapted to receive and place within the tube 18 a cash carrier 22. This chamber is secured to the casing 1 by apertured lugs 26 which embrace the casing, and is formed with a handle 27 and an outwardly bent lower edge 25a which cooperates with a spring 28 to maintain the chamber within the bottom of the tube. In order to place a container 22 within the tube, the chamber 21 is pulled out by the handle 27 and the container dropped into it. On the handle being released, the chamber enters the tube with the container resting on an abutment 21d. The first ascending abutment raises the container to the top of the tube where it strikes against an inclined plate 30 and is deflected forwardly through an opening 29 so as to fall into a receptacle 30a. A " descent " tube 31, secured to the left side of the casing 1, is provided with a slot 32 registering with the slot 2 in the casing 1 and with an opening 33 in which is fitted a pivoted chamber 21<SP>1</SP> adapted to receive a cash container. This chamber is not fitted with an abutment such as 21d in the chamber 21, so that a container inserted in the " descent " tube falls under gravity until it comes to rest on a descending abutment 15, whereupon it descends the remainder of the tube at the speed of the belt. At the lower end of the tube, the container is deflected by a member 35 through an opening 34 into a receptacle 36. The " descent " tube may be closed on all sides so that a container placed in it will fall entirely under gravity.
Patent GB-427615-A (GB)
Title: Safety tobacco ash trays
IPC: A24F19/09
Filed: 1934-11-16
Abstract: 427,615. Smokers' ash-trays. WALL, B. T., Box V, G.P.O., Raymond, Alberta, Canada. Nov. 16, 1934, No. 33047. [Class 130] [See also Group XIII] An ash-tray is provided with a cigar or cigarette rest having a heat-responsive member for gripping and extinguishing a cigar or cigarette placed on the rest. In one form, Figs. 1 and 2, the rest 13 is cut away at 15 to leave a tongue 16, which is bent to form a foot 18, to which is secured a U-shaped bimetallic strip 19. When heated by the burning end of a cigarette on the rest 13, the limbs of the strip 19 close upon and extinguish the cigarette. In a modification, Fig. 6, the extinguisher is a hood 26 on a shaft 25 supported in bearings on the edge of the cigar &c. rest 23. A thermostatic coil 28 is secured at the outer end to the hood 26 and at the inner end to a pintle 29 journalled in a bearing 30 on the flange 31 of the tray 22. Expansion of the coil 28 when heated causes axial movement of the inner end of the coil, which is restricted by the pintle 29 and bearing 30, so that rotary movement is imparted to the shaft 25 of the hood 26. In a further modification, Fig. 9, the extinguishing hood 32 is of the same length as the rest 33 and the flange 36 of the tray is provided with a foot 37.
Patent GB-507832-A (GB)
Title: Improvements in or relating to electromagnets
IPC: H01F7/20
Filed: 1938-11-14
Abstract: 507,832. Magnetic tests. UNGER,.F. Nov. 14, 1938, No. 33058. Convention date. Jan. 18. [Class 37] [Also in Group XXXV] A magnet, for testing materials, preferably by means of ferro-magnetic powder, has its, pole faces at an angle to the limbs so that the yoke and energizing coil are displaced laterally with respect to the polepieces, thus permitting an unobstructed view of the workpiece perpendicularly to its surface. In Fig. 2, the yoke with energizing coil 4 has limbs 1, 2 and pole surfaces in contact with the workpiece 6. The width of the limbs should not be wider at the pole surfaces than elsewhere. Fig. 3 shows an embodiment suitable for the examination of corner joints.
Patent GB-1443144-A (GB)
Title: Temperature control
IPC: C23C14/54
Filed: 1972-07-14
Abstract: 1443144 Cooling apparatus DEFENCE SECRETARY OF STATE FOR 23 Aug 1973 [14 July 1972] 33074/72 Heading F4U A metal collector plate 10 having a surface for the vapour deposition of metal alloys is cooled by a flow of coolant through flexible pipes 18,19 which supply hollow heat sinks 16 e.g. copper blocks, held between pairs of heat conducting members 14 which are bolted as at 18 to the reverse surface 12 of the plate. The members 14 comprise copper bars which are secured to longitudinal ridges 13 on the surface 12 by bolts 15. The bolts 15, 18 are of a material having a lower coefficient of linear expansion than copper to ensure efficient thermal contact. Heaters 22 for initial heating of the plate and monitoring by a thermocouple 21 are also provided.
Patent GB-1464880-A (GB)
Title: Shielded inductance coil with trimmer
IPC: H01F29/10
Filed: 1974-07-26
Abstract: 1464880 Inductors and transformers HULL CORP 26 July 1974 [21 Jan 1974] 33145/74 Heading H1T An electrical inductor or transformer (Fig. 3, not shown), comprises multiple turns of electrically conductive material forming a coil 10 with a central opening 16, a shield 22, 24, (26), 28 of magnetic metal at least partially surrounding the coil and a rod 30 of magnetic metal mounted in engagement with one side 28 of the shield for movement through the opening in order to vary the spacing between the inner end of the rod and the confronting opposite side 22 of the shield. The coil may be a continuous spiral winding of thick films with dielectric sheets, or thin films using printed circuit techniques. For microminiaturisation, vapour deposition is used, on a dielectric substrate 18 having a central hole 20. The rod may be in the form of a screw engaging a nut 32 which is secured to the top plate 28 of the shield. The terminals 12, 14 of the inductor extend laterally from opposite sides of the coil. In the case of the transformer (Figs. 3 to 7, not shown), the terminals (36), (38) of the primary winding (34) extend from one side of the coils and the terminals (42),(44) of the secondary winding (40) which is deposited on the primary, extend from the other side of the coil.
Patent GB-486123-A (GB)
Title: Improvements in and relating to apparatus for the delivery from rolls of paper, cloth and the like
IPC: A47K10/38
Filed: 1936-12-03
Abstract: 486,123. Making brackets. CRUSE, H., and CRUSE, C. Dec. 3, 1936, No. 33146. [Class 83 (ii)] [Also in Group XVII] A holder for rolls of paper, cloth, &c. which are carried on revolving rollers comprises end sections 5, 5a having stamped, pressed or forged therein oblique roller - end - receiving channels 2, 2a inclined at an angle of about 30‹ to the horizontal. The holder may be formed in one piece by stamping channels in the ends of a metal strip 1 and bending it into a #- shape; or the channels may be formed in separate pieces which are then riveted or otherwise secured to the end pieces ; or the end pieces themselves may be formed separately with integral or attached grooves. Leaf springs 3, 3a, 4, 4a may be secured at A to lock the roller in position, the roller being removable, by pushing past the springs 4, 4a only when the roll of paper &c. is almost exhausted. Instead of springs, pressed-out humps may be provided at the channel entrances, the roller being then not irremovable.
Patent GB-1520264-A (GB)
Title: Digital signal transmitter
IPC: H04B1/66
Filed: 1975-08-08
Abstract: 1520264 Digital speech transmission PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 Aug 1975 [12 Aug 1974] 33178/75 Heading H4R Speech is transmitted digitally via a first channel 1 containing a differentiator 32, slicer 33 and integrator 34 forming a zero-crossing detector and feeding a uniform pulse delta modulator 5 to encode the speech frequency content, and a second channel 2 containing an envelope detector 6 and low pass filter 7 feeding a transmission device 8 (e.g. another uniform pulse delta modulator) operating at a lower bit rate (400 Hz) than the first (4À4 kHz) to encode the speech amplitude content. D.C. is added at 40, 41 to cause the modulator 5 rest pattern to be 000. . . or 111 . . . instead of 1010. . . to remove a spurious 2,200 Hz frequency and provide frequency channel identification. In the receiver (Fig. 2, not shown) the integrated envelope signal (18-20) modulates the frequency information (22, 23) before further integration (27).
Patent GB-835439-A (GB)
Title: Reactor feed method and apparatus
Inventor: GROVES JAMES DENNIS
IPC: C22B1/08
Filed: 1956-10-31
Abstract: A particulate mixture of a metal ore and a carbonaceous substance is fed to a reactor wherein a metallic halide is being produced by the action of a halogenating gas upon the feed, by means of a conduit having a downward leg followed by an upward leg having an outlet to the reactor, a gas being forced into the mass of particles in the legs to fluidize the particles and form a gas seal against the effluent gas and <PICT:0835439/III/1> to maintain the level of the reactants in the downward leg higher than that in the upward leg.  In the illustrated embodiment, the particulate material is fed via a rotary valve into a downward leg 3 of a conduit 2 and is maintained by means of a gas passing through distributer plate 7 in fluidized condition in the lower part of said leg and leg 4.  The material then passes through line 5, which may contain a valve, into reactor 6 which is in this case also fluidized.  The line 5 may, if desired, terminate below the level of the fluidized reactants.  The conduit 2 is provided with an upward extension 12 through which part of the fluidizing gas escapes, the remainder passing into the reactor; this extension is widened to avoid excessive entrainment of fines.  The gas used to fluidize the feed material may be inert with respect to said material so as to purge it of entrained air or moisture.  Gases mentioned are nitrogen, dry or moist air, CO2, CO (or a mixture thereof such as is derived after removal of chlorides from the chlorination of rutile and carbon), argon and helium may be used. The reaction in the example is the fluidized chlorination of a mixture of rutile and carbon at 600-1200 DEG  C. with chlorine (COCl2 or HCl could also be used) and in the case of such a reaction, reactive gases such as chlorine or HCl may be used to fluidize the feed provided they are suitably recovered.  In addition to rutile, ilmenite and ores of zirconium, chromium, tin and iron may be halogenated.  Specifications 724,193 and 762,583 are referred to.
Patent GB-1372682-A (GB)
Title: Reverse motion alarm
IPC: G08B21/00
Filed: 1973-07-12
Abstract: 1372682 Movement indicators E R PETERSON 12 July 1973 [2 April 1973] 33232/73 Heading G1K In a warning device in which an audible warning is given on reversal of motion of a vehicle, a rotatable shaft or linearly movable member freely rotates a wheel 64 through a tyre 66 in one direction but in the other direction the wheel 64, through an over-running clutch 62, rotates a shaft 20, bell 60 and a cam 58 which engages pin 54, 56 and by means of springs 50, 52 causes hammers 46, 48 to contact the bell 60 to give an audible signal of a vehicles reversal of motion. The device may be used to indicate the reversal of a conveyer belt, lathe or milling machine carriage, drive pulleys of overhead cranes or the raising mechanism of dump trucks.
Patent GB-1130288-A (GB)
Title: A process for recovering sulphur dioxide from gas scrubbing liquors containing sulphur dioxide
Inventor: SPETH SEBASTIAN
IPC: C01B17/60
Filed: 1967-07-20
Abstract: 1,130,288. Recovering SO 2  from aqueous liquors. DUISBURGER KUPFERHUTTE. 20 July, 1967 [23 July, 1966], No. 33399/67. Heading C1A. SO 2  is recovered from aqueous liquors containing SO 2  by desorbing SO 3  under reduced pressure whilst heating the liquor to give a mixture of SO 2  and steam, and increasing the SO 2  content in the mixture by condensing the steam by heat extraction in a plurality of successive stages, the pressure being increased from stage to stage by means of steam jets. The heating may be effected by evaporating liquids from a vacuum cooling system in which the heat absorbed by the cooling water during condensation of the steam is dissipated again, optionally by means of steam jets, so that the cooling water can be re-used. The SO 2  containing water of condensation of each stage may be allowed to expand from the bottom of that stage into the preceding stage. The SO 2  may be only partially separated to give a mixture of SO 2  and H 2 O which is reacted with air or O 2  to form H 2 SO 4 .
Patent GB-605011-A (GB)
Title: Improvements in or relating to a method of manufacturing bags provided with a carrying loop
IPC: B65D33/24
Filed: 1945-12-11
Abstract: 605,011. Bags. EDSTROM, S. C. O. Dec. 11, 1945, No. 33546. [Class 133] A carrying loop provided on the side of a paper bag is secured between longitudinal overlapping edges. A paper web 1 is provided with two strips 2 of paste between which slots 3 are cut at distances depending on the intended length of the bag. The web is then cut in these lengths and the edges folded and secured as shewn. A space is thus left between the strips into which through the slot 3 a loop 7 which may be formed from a double-folded band of paper having links of unequal length previously pasted on one side is inserted and secured. The loop closes the bag by threading through holes 6 provided in the top of the bag which is folded about a line 5 between them. The bottom of the bag is stuck by doublefolding along line 4. The loop may be produced from a cord in which case a circular aperture is provided instead of the slot 3.
Patent GB-655250-A (GB)
Title: Improvements in or relating to electric lamps
IPC: F21L4/00
Filed: 1946-11-13
Abstract: 655,250. Lamp-holders. CONCORDIA ELECTRIC SAFETY LAMP CO., Ltd., and CORNISH, J. P. Nov. 13, 1946, No. 33682. [Class 38 (i)] A lamp body B comprises all insulating sheath 10 to which are secured 'a lightprojecting head A and a carrying harness C, the sheath being provided with terminals 13 which are received in depressions 14 and enclosed by a movable insulating cover 16. In the head A a reflector 1 is secured to a ring 6 into which is screwed a metal plug 8 threaded internally for the bulb 5. The plug 8 also screws into the sheath 10 which carries a plug 12 movable against the bulb centre contact. Set screws 9, 17 normally retain the ring 6 and the cover 16 in position. To use the arrangement for removing the lamp head A to service the terminals, the aperture 18 for the screw 17 may be extended to allow the cover 16 to be rotated to expose the terminals through apertures in the cover. Current is supplied to leads 15 from a battery in an insulating case 30 by a strip contact 40, 41, 42, which is engaged by a spring-loaded screw-switch 43, and a central contact 37. To use the arrangement as a standing lamp, the body B is inserted in a clip 51 pivoted on a spring clip 50 snapped on the container.
Patent GB-307783-A (GB)
Title: Improved apparatus for playing a game of skill
IPC: G07F17/38
Filed: 1927-12-13
Abstract: 307,783. Ballinger, W. P. Dec. 13, 1927. Tivoli billiards.-In games wherein the delivery of a prize is controlled by an electric contact closed by a coin or ball reaching its goal, the delivery mechanism, when moved by hand to a set position, is locked by a detent which is released by an electromagnet control responsive to the contact closure. The coin is received in a gun 5 mounted on a shaft 6 extended to form a handle and provided with a plunger 7 actuated by a lever 10. This'lever is actuated by a hand-lever 12 and has a tail-piece 25 which engages a plunger 26 on the lowest slide 19 of the prize delivery, this slide having a tongue 27 engaging the other slides so as to re-set them when the handle 12 is manipulated. The slides are of differing thickness and receive coins from a shoot 17 for delivery to an open receptacle 24. Each slide is locked by a detent 28 pivoted at 29 and carrying an armature 31. Rotation of the handle 39 on shaft 38 moves the rod 36 and magnets 32, one to each contact, so as to release those detents 29 whose magnets 32 have been energized, which always includes the lowest slide. Shaft 38 also has a cam 40 engaging a nose 41 on the lowest slide to move the slides forward before the detents are released, and a cam 45 to withdraw the contacts or in other ways dislodge the coin or ball.
Patent GB-1222457-A (GB)
Title: A junction between two pipes
IPC: F16L51/00
Filed: 1969-07-04
Abstract: 1,222,457. Pipe joints. ETABS. POMPES GUINARD. 4 July, 1969 [17 July, 1968], No. 33783/69. Heading F2G. A pipe joint capable of accommodating radial and axial displacements between two pipes to be joined and carrying a pressure fluid comprises a floating sleeve 1 axially movable in the first pipe 2. The sleeve has an annular plate 6 at one end of it which is thrust on a flange 7 formed at the rear end of the second pipe and is equilibrated thereon by means of a differential pressure. A pressure-fluid film separates plate 6 and the flange 7. As shown, the plate 6 is provided with circumferentially spaced pockets 9 for admitting pressure fluid from the pipe through openings 11 and calibrated passages 10. The pockets 9 may assume the form of a circular groove. The sleeve may have expansion grooves 3 and pockets 4; pressure fluid from the pipe admitted into the latter through perforations 5 maintains the sleeve central in the pipe 2. In a modification (not shown), the plate 6 is oblique in relation to the axis of the sleeve.
Patent GB-434781-A (GB)
Title: Improvements in and relating to methods of grinding by means of rotary grinding discs and the like
IPC: B24D18/00
Filed: 1933-12-01
Abstract: 434,781. Grinding. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER, 7, Weissfrauenstrasse, Frankforton-Main, Germany. Dec. 1, 1933, No. 33787. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 2, 1934]. Application for addition to 384,854. [Class 60] A process of grinding comprises the use of a grinding-body driven at a peripheral speed exceeding 25 metres per second, and, in the cases wherein resinous, rubber, or ceramic materials are employed as binding-medium, at a speed exceeding 45 metres per second, the body being composed of abrasive grains and a binding-medium and uniformly interspersed with artificially produced cavities, which are greater in size than the abrasive grains and of which the total volume is more than 50 per cent of the total volume of the body.