baber/WOPTO huggingface dataset:
Patent GB-1452177-A (GB)
Title: Method of extracting pure aromatic hydrocarbons
IPC: C07C7/08
Filed: 1974-02-20
Abstract: 1452177 Separating aromatic hydrocarbons METALLGESELLSCHAFT AG 20 Feb 1974 [20 March 1973] 7790/74 Heading C5E A mixture 1, comprising aromatic and non-aromatic hydrocarbons, is separated in a distillation column 2 to provide an overhead 6 which is passed in the vapour phase into the extractive distillation column 9 in which it is separated, using N-methylpyrrolidone as the selective solvent, into an overhead 17 comprising non-aromatics and a sump product 10 containtaining the solvent. The sump product can be separated into solvent 12 and an aromatic overhead 22 which is separated into individual aromatic compounds by conventional distillation at 23. The process can be used to separate toluene and xylene, benzene and toluene, or benzene, toluene and xylene from mixtures.
Patent GB-596448-A (GB)
Title: A practise device for improving the putting of golfers
IPC: A63B57/40
Filed: 1946-04-10
Abstract: 596,448. Game apparatus. PINDER, W., and PINDER & SON, Ltd., W. April 10, 1946 No. 7799/45. [Class 132 (ii)] A device for practising putting comprises an open topped rectangular box open at one end 5, a ring 6, representing the hole in the green, being supported about the opening. The base of the box adjacent the opening may be cut away as shown at 8. A ridge 9 prevents balls from rebounding off the closed end 5 which may have an aperture 3a to be engaged by the putter to tip up the box to empty out the balls. Pivoted wings 10, which may be detachable, are provided to prevent balls, missing the opening 5, rolling beyond the device.
Patent GB-278960-A (GB)
Title: Improvements in weighing scales
IPC: G01G21/00
Filed: 1927-03-21
Abstract: 278,960. Marks, E. C. R., (Toiedo Scale Co.). March 21, 1927. Bearings; links.-Relates to weighing-scales employing link connections between relatively movable parts, for example, a check link for preventing tilting of the platform, and consists in the provision of means for permitting universal adjustment of one of the knife-edged pivots of the link comprising a threaded shaft carrying the knife-edged member, a block in which the shaft is adjustably secured and means permitting of an oscillatory movement of the block for connecting same to a stationary part of the scale. The depending leg 9 of the platform spider carries a knife-edged plate 10 engaging the adjacent ends of two links 11, 12 the other ends of the links being engaged by a similar knife-edged plate 13 secured to the end of a threaded shaft 15, the links being arranged to form a pull and push connection with the knife-edges. The threaded shaft 15 is adjustably secured in a block 16 and may be locked by a screw 17. Loosely assembled within the block are two cylindrical stud shafts 19 through which are threaded a pair of screws 20 passing through a boss 22 in the scale base, sufficient clearance being provided in the block 16 to permit of slight oscillatory movement of the block relative to the screws. The block 16 has laterally-projecting ears 23, Fig. 3, to receive the thrust of adjusting screws 24 threaded through the boss 22. By adjusting the screws 20, 24 a limited universal adjustment of the post 15 and its knife-edged plate 13 may be effected to bring the link 11 into accurate parallelogrammatic relationship with the scale beam. The screws may bo adjusted without deranging the scale by removal of a cover 27.
Patent GB-253992-A (GB)
Title: Improvements in or connected with the manufacture of meal for use in connection withsausage meat, meat and fish paste, and the like
IPC: A23L1/275
Filed: 1925-03-24
Abstract: 253,992. Morris, A. O. March 24, 1925. Colourings.-A coloured or tinted meal for use in minced or chopped meats, such as sausage meat, meat and fish paste, &c., is made by dissolving a colour in a relatively large quantity of water, spraying the solution on to a relatively large quantity of starch, for example maize starch, and then mixing this coloured starch, in a small proportion and as a dry powder with the bulk of the cereal flour, for example cornflour or wheat flour. Specifications 4260/79, 22899/92, and 21478/10 are referred to.
Patent GB-414318-A (GB)
Title: Improvements in heat indicating devices for ovens, stoves or the like
IPC: G01K5/70
Filed: 1934-03-13
Abstract: 414,318. Thermometers. MILLER, F., 68, Nansen Road, Sparkhill, Birmingham. March 13, 1934, No. 7884. [Class 97 (iii).] A heat indicating device of the kind in which a pointer or indicator operated by a bimetallic strip or heat sensitive device is arranged, on a variation in temperature, to move over or in front of a dial or graduated scale, has a hood or cover which extends over, and protects, the movable pointer or indicator when the latter is in its zero position, or when the pointer is in the position it assumes when the bi-metallic strip or heatsensitive device is in an unheated condition, the arrangement being such that the pointer or indicator moves from behind the hood or cover when the bi-metallic strip or heat-sensitive device becomes heated. As shown, the device comprises a pointer 2 adapted to move over a dial 3 and actuated by a bi-metallic strip housed in a tube projecting into the oven. Fitting over the dial 3 is a cover 11 with an arc-shaped aperture 12 through which may be seen the scale 10. When the device is in unheated condition, as shown, the pointer 2 is entirely covered by the hood 11, and moves, down so as to be seen through the aperture 12 when the device becomes heated.
Patent GB-536192-A (GB)
Title: Improvements in or relating to handbags
IPC: A45C3/06
Filed: 1940-05-03
Abstract: 536,192. Handbags. MURCH, B. C., and MURCH & CO. (1938), Ltd., B. C. May 3, 1940, No. 7942. [Class 133] A handbag shaped to represent a motor car comprises front and back portions hingedly attached togethed along the straight edges 3, the remaining curved edges, forming the mouth of the bag, being detachably connected by a sliding- clasp fastener 6. The front or back or both portions are provided with rotatable discs 7 representing wheels, and one portion is provided with a hinged flap 9 shaped like a door and enclosing a mirror, a carrying strap being attached to the opposite portion. Ornamental metallic beadings 14, 15, are provided on the front portion. The ends of the bag are formed by gusseted walls disposed inside the extremities of the front and back portions.
Patent GB-1030247-A (GB)
Title: Telephone switching systems
IPC: H04M15/00
Filed: 1963-02-28
Abstract: 1,030,247. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. Feb. 28, 1963 [March 6, 1962], No. 8012/63. Heading H4K. Each exchange reverts a signal identifying itself over a calling junction to the exchange originating the call, where the information is recorded. The items of equipment used in the connection also are identified, and special signals are sent in the cases of a call switched from a private system and of a failed call, so that the originating exchange has a complete record of the paths of all connections set up or attempted. The identification signals are sent in a two-out-of-six voice-frequency code which is used also for forward transmission of the wanted number and other information. Reference is made to U.S.A. Specifications 2,508,052 (trouble recorder), 2,564,441 (multifrequency sender), 2,585,940 (cross-bar system), 2,587,817 (tandem operation), 2,599,358 (calldata recording), and 3,150,236 (diversion of calls from private system to commercial network).
Patent GB-497701-A (GB)
Title: Improvements in or relating to spools
IPC: B65D85/672
Filed: 1938-03-15
Abstract: 497,701. Spools. STEVENS, A. H. (General Ribbon Mills, Inc.) March 15, 1938, No. 8030. [Class 120 (iii)] A spool for ribbons, tapes and the like is made from a blank of sheet material of general circular shape as shown in Fig. 2. It is scored along the lines 20 to permit bending and has a central opening 14 of octagonal outline formed by the inner edges 16 of rectangular sections 18. Each pair of lines 20 forms the angle of a sector 24 the periphery 22 of which projects beyond the outer edges 19 of the sections 18. The blank is folded to produce the spool shown in Fig. 1, the end faces being formed by the sectors 24 alternately while the sections 18 form the axial part. The ribbons may be wound directly on the spool, or a band of paper may be secured to the spool first, or the ribbon and a protective paper strip may be wound together. The winding is retained by the flanges formed by the projecting parts of the sectors 24. The ribbon may be wound into a roll upon a temporary carrier, from which it is taken and placed on the spool. A cylindrical block 40 is then inserted between the edges 16 at the centre of the spool to cause an expansion of the structure so that the projecting flanges overlap the roll.
Patent GB-868090-A (GB)
Title: Improved case or container for baked goods and confectionery
IPC: A47J36/02
Filed: 1958-03-13
Abstract: 868,090. Metal foil containers. JOWETT, V. March 13, 1958, No. 8032/58. Drawings to Specification. Class 66. A method of making containers of metal foil for baking or confectionery purposes comprises stamping out blanks of foil while also stamping perforations or slots in the blanks at those places designed to form the base and/or sides of the containers, the blanks being subsequently shaped to the form required.
Patent GB-1342849-A (GB)
Title: Pulse rate control motor speed control system with feedback
IPC: H02P7/29
Filed: 1972-02-22
Abstract: 1342849 Automatic control of speed CUTLER-HAMMER INTERNATIONAL FINANCE Inc 22 Feb 1972 [22 Feb 1971] 8089/72 Heading G3R An electric motor is energized with constant width pulses, the space between the pulses being determined by a capacitor circuit which is charged during the "on" pulses and discharges initially at a predetermined rate and then at a rate determined by the back e.m.f. of the motor so that the total "off" time depends upon motor speed which is hence kept constant. In the embodiment a shunt or permanent magnet field motor A is energized from a D.C. source via switching transistors Q4, Q5 which are turned on by Q2 during the charging of the capacitor C1 from a Zener diode regulated source 6. Charging ceases when a unijunction transistor Q1 conducts and discharge begins at a relatively slow rate. A further transistor Q3 has been conductive during this time so that point 12 is substantially at earth potential. The "on" pulse also charges a further capacitor C2; at the end of this pulse C2 commences to discharge via R8 at the predetermined rate until its voltage drops below that of the back e.m.f. Diode D3 then conducts and slows down the rate of discharge of C2. When the voltage on it is insufficient to maintain Q3 in a conducting state this turns off and rapidly completes the discharge of C1 by raising the potential at 12, thereby turning off Q1 and causing the cycle to repeat. Thus, the "off" time depends upon the discharging rate of C2 and hence upon back e.m.f. A bias circuit R7 ensures adequate control at low speeds and speed adjustment is made by potentiometer 16.
Patent GB-624040-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/245
Filed: 1947-03-27
Abstract: 624,040. Transformers and inductances. BRITISH THOMSON-HOUSTON CO., Ltd. March 27, 1947, No. 8348. Convention date, March 28, 1946. Drawings to Specification. [Class 38 (ii)] A closed loop laminated magnetic core is made with its inner laminations wider and of lower permeability and higher loss material than the outer laminations. The outer and inner laminations may be of cold and hot rolled silicon steel respectively. The core may be built from wound strip of various widths to give the core a cruciform cross-section.
Patent GB-766242-A (GB)
Title: Rotary expansible well drill bits
Inventor: KAMMERER ARCHER WILLIAM
IPC: E21B10/34
Filed: 1955-03-23
Abstract: 766,242. Borehole drill bit. KAMMERER, A. W. March 23,1955, No. 8462/55. Class 85. A rotary expandable well drilling bit for enlarging boreholes has a body, carrying expandable cutters, slidably splined and centralized on a mandrel connectable to a drill string and has hydraulic means to move said body axially of said mandrel to expand the cutters, the force expanding said cutters decreasing or remaining substantially constant as the cutters expand. The upper end of the mandrel 13 is connected to the drill string B and the lower end has flattened sides 83, Fig. 5, to allow the body 14 to slide axially on but not rotate relative to the mandrel. Arms 23 carrying roller cutters 27 are pivoted by pins 25 in slots in the bottom of the body 14. To expand the arms 23 fluid is pumped down the drill string B when the back pressure caused by the restriction 49 is transmitted through passages 77 to the under side of a shoulder 70 attached to the body 14 causing the body 14 to slide upwards relative to the mandrel 13 until the tapered bottom 18 of the body contacts the tapered end 17 of the mandrel so centralizing the body relative to the mandrel. During this movement an expander 38 on a tubular member 47, extending from the mandrel, co-operates with curved surfaces 30 on the arms 23 to expand them when they are held expanded by surfaces 32 on them contacting a surface 39 on the expander. The surface 30 is so curved that a common tangent 91 at the point of contact 90 of the surface 30 and the expander 38 makes a decreasing angle with the plane normal to the axis of the mandrel as the arms expand: When pumping stops and the string B and mandrel 13 are raised a shoulder 96 on the expander 38 contacts shoulders 97 on the arms 23 to contract them. If due to sand &c. in the annular space 22 below the shoulder 70 the arms 23 do not contract the mandrel is raised until the arms 23 contact a shoe F on the well casing D when sufficient upward force will cause snap rings 20,65,75 to contract in their V-shaped grooves and allow the shoulder 70 and a head 63 thereabove together with the sand to move upwards relative to-the body 14 allowing the arms to contract.
Patent GB-180470-A (GB)
Title: Improvements in sewing machines
IPC: D05B27/12
Filed: 1921-03-18
Abstract: 180,470. Saunders, S. E., and Clarkson, A. March 18, 1921. Sewing-machines; feed by wheels; needles, vibrating laterally; governing needle thread.-A machine, for sewing together sheets of ply-wood as described in Specification 105,412, [Class 145 (ii), Wood, Working], is provided with reversible means for feeding the material continuously, and for moving the needle with the material during engagement therewith; means are also provided for correcting the take-up during reversal. Two pairs of feed-rollers i, i<1> are continuously rotated from a shaft f<2>, through worm gearing j<3>, and shafts j, j' with universal joints j<2>. The lower front-end sbaft-bearings k are capable of vertical adjustment, and the upper bearings l are carried on spring-pressed rods l<4> which can be raised by means of levers m and links m<4>. A needlebar e and a spring-pressed presser-foot u<1> are mounted to slide vertically in a frame u with lateral extensions u<2>, which is mounted for reciprocation in the direction of feed in the blocks l<3> and a guide-slot o<l>. The needle-bar e is reciprocated vertically by a link e<2> from a crankdisc e<1> on a shaft d, which is driven from the shaft f<2>. The frame u is reciprocated laterally by a link q<4>, and a lever q from a cam-disc p<1> on the shaft d. A cutter r, pivoted on one of the bearings l and driven from the shaft d through gearing s<2>, s and a universally-jointed connecting- rod r<4>, grooves the surface of the wood to receive the stitches. In the machine as shown in the drawings, a take-up lever h is actuated by a camgroove h<1> in the crank-disc e<1>. To give the lever h its correct movement for both directions of feed, it may, in an alternative form, be actuated by either of two cams, slidingly mounted on a horizontal shaft, normal to and driven from the shaft d.
Patent GB-430195-A (GB)
Title: A machine for securing together the edges of a number of paper or other sheets
IPC: B31F5/02
Filed: 1934-03-19
Abstract: 430,195. Fastening together paper &c. sheets by crimping. BROADBENT, T., 33, Clova Road, Forest Gate, London. March 19, 1934, No. 8515. [Class 146 (ii)] In a crimping- machine in which the edges of a number of paper or other sheets are to be secured together, the sheets are passed between at least one lower crimping-wheel 3 which is driven and rotatable in fixed bearings, and at least one upper crimping-wheel 10 rotatably mounted on one end of a crank member 11 which is pivotally mounted at its other end in a fixed bearing, and a flat spring is secured at one end to the crank 11 near its pivot and engages at its other end a stop mounted in the frame of the machine, whereby the upper wheel 10 is normally pressed resiliently against the lower wheel 3, but is displaceable arcuately about the pivot bearing of the crank 11 to yield resiliently for accommodating varying total thicknesses of sheets to be secured together. The lower wheel 3 is mounted on a shaft 2 rotatable by means of a handle 4. The crank 11 is secured at one end to a shaft 12 pivotally supported in a fixed bearing, and the other end has a bearing 13 for the upper wheel 10. The spring is preferably secured at one end to the shaft 12 of the crank 11, and its other end located against a stop, or between stops, the arrangement being such that the upper wheel 10 is pressed resiliently towards the lower wheel 3. Where one stop is provided it may consist of a rotatable spindle 17 having an operating lever 18, and an eccentric member on the spindle engages the end of the spring, whereby the pressure on the upper wheel on the lower wheel may be varied ; or the free end of the spring may bear against an adjusting-screw threaded into a fixed abutment. The spring may be secured by screws in a slot or on a flat surface of the shaft 12, or the end of the spring may have a boss adapted to be secured to the shaft. The frame 1 of the machine is provided with a clamp having limbs 5, 6 at each side of the wheel 3, and shoulders 7, 8 on these limbs engage the edge of the table or other support for the machine to provide a sufficient space between the edge of the wheel 3 and the table. The sheets are registered relatively to the crimping-wheels by a guide 22 secured to a rod 23 which is adapted to be raised by means of a lever 24. Specification 215,019, [Class 146 (ii)], is referred to.
Patent GB-308087-A (GB)
Title: Improvements in or relating to apparatus for measuring and delivering predetermined quantities of liquids
IPC: G01F11/28
Filed: 1928-03-22
Abstract: 308,087. Dawson Bros., Ltd., Dawson, G., and Dawson, D. H. March 22, 1928. Moving-chamber apparatus.-In apparatus for delivering milk or other liquid, a measuring chamber 1 is immersed in the liquid in a tank 3, filled through holes 8, raised, and discharged through a central unobstructed tube 2, on which it is slidably mounted. The raising means comprise a cap 5 which is lifted by the bottle or receptacle to be filled, and connected to the chamber 1 by rods 4 which either abut on the cover 6 as shown, or pass through glands in the bottom of the tank 3 and abut on the bottom of the chamber 1. The liquid is delivered through a pipe 9 which screws into or slides in the tube 2.
Patent GB-1196270-A (GB)
Title: Improvements in Electrical Connectors
Inventor: MEDLEY JOSEPH
IPC: H01R4/24
Filed: 1967-12-29
Abstract: 1,196,270. Electric couplings. J. MEDLEY. 23 Dec., 1968 [29 Dec., 1967; 22 Feb., 1968], Nos. 59058/67 and 8727/68. Heading H2E. A hinged two-part connector with cover 12 and base 11 hinged by pin 13, has raised portion 15 which is provided with channels 22, reinforced by metal tubing 23, on cover 12 and contact pins 14 with chisel ends 24 housed in base 11 (Fig. 2, not shown) such that insulated wires passing through opening 26 and channel 22 have their insulation stripped and wires clamped by the respective chisel ends, on the two parts being closed on each other (Figs. 2, 3 and 4, not shown). In another embodiment (Fig. 5, not shown) the two stripping chisels are secured to the base together with one of the contacts integral with one of them and projecting in the plane of the base at the end opposite the hinge. The other contact is secured to the cover and projects similarly making contact with the other chisel when base and cover are closed.
Patent GB-250253-A (GB)
IPC: A43D79/00
Filed: 1926-04-01
Abstract: 250,253. United Shoe Machinery Corporation, (Assignees of Standish, J. F.). April 2, 1925, [Convention date]. Heels and toplifts, machines for.-Relates to heel holders more particularly for heel attaching machines, and consists in a holder for multisection heels, e.g. heels with a leather base and a rubber toplift, having a plurality of retainers for engaging the periphery of the sections to hold them in superposed alignment, means being provided for adjusting the relative position of the retainers heightwise and longitudinally of the heel. A retainer of fixed size may engage the toplift while the retainer for the base section may be adjustable. The holder is carried by a casting 10 slidable laterally of the machine on a fixed rod 24, being supported at the front by a roller 68. An interchangeable toplift holder 14 engages guides in the casting and is retained in position by a spring-held pin 26 with a tapered end. The base member is held by pivoted arms 28, geared together and engaging the breast corners; and a rear gauge 70. The arms 28 are adjusted towards or from each other by a wing nut 38; and heightwise of the heel, about an axis 46, by a screw 62 acting in opposition to a spring 66. The rear gauge 70 is adjusted heightwise of the heel by a screw 84 acting in opposition to a spring 86, the gauge having a stem 72 normally pressed forward in a threaded bushing 74 by a spring 76. The bushing is threaded into a rocker member 78 to allow of adjustment longitudinally and heightwise of the heel.
Patent GB-492691-A (GB)
Title: Improvements in releasable locking devices for parachute harness
IPC: B64D17/32
Filed: 1937-03-25
Abstract: 492,691. Strap and chain fastenings ; hooks. LUNDHOLM AKTIEBOLAG, C. H. March 25, 1937, No. 8835. Convention date, Nov. 16, 1936. [Classes 24, 44, and 89 (ii)] Relates to leg-strap fastenings for parachute harness of the kind in which the harness has a central locking device, operation of which also operates the leg-strap fastenings. The fastening comprises a fixed jaw 1 integral with a plate 17 having slots 18 by which the device may be secured to the harness, and a pivoted jaw 2, the two jaws, when closed, providing a loop for engagement by a snaphook, ring, or other member on the free end of the leg strap. Jaw 2 has a projection 5 which enters a recess 21 in jaw 1, and a projection with an aperture 20 into which the rounded or bevelled end 6 of a sliding bolt 7 snaps under the action of a compression spring 8. The bolt is withdrawn by a cable 23 connected with the central locking device and provided with a tubular sheath, not shown, attached to a terminal socket 9 secured by a metal strap 11 attached to plate 17 by screws 13 and having a bent claw 12 engaging a recess 14 in member 1. The cable preferably extends through a bore in, and is secured at the nose end of, the bolt. To give clearance for the connected harness and the cable, the rear portion of plate 17 is cranked or offset from the main plane of the plate, as seen in Fig. 2. A spring 16 throws the jaws open when the bolt is withdrawn.