baber/WOPTO huggingface dataset:
Patent GB-1344217-A (GB)
Title: Electronic antilock control device for a braking system
IPC: B60T8/173
Filed: 1972-07-18
Abstract: 1344217 Antiskid braking systems SOC ANON DBA 18 July 1972 [2 Aug 1971] 33497/72 Heading F2F An antiskid braking system comprises at least one wheel speed sensor C supplying an alternating voltage, whose frequency represents a wheel speed, to an amplifier A whose output signal is fed to a frequency/voltage converter CFT which supplies a direct voltage representing the said frequency to an anti-lock logic element providing signals to maintain or relax braking pressure, the amplifier being a differential amplifier having cut-offs or thresholds. The non- inverting input of the amplifier is fed via a resistor R1, the other input being earthed and feed-back is provided via a resistor R2 having a value of for example a thousand times that of R1. The arrangement is intended to prevent noise signals provided, for example, by a vibrating locked wheel from interfering with operation of the system.
Patent GB-476617-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G9/12
Filed: 1936-12-07
Abstract: 476,617. Electrolytic condensers. DUBILIER CONDENSER CO. (1925), Ltd. Dec. 7, 1936, No. 33555. Convention date, Dec. 7, 1935. [Class 37] [Also in Group XVII] For venting the container of an electric condenser the upper part is provided with a rubber &c. diaphragm G with a pinhole perforation G<2> preferably in a thinner central part G<1>. The diaphragm, or a domed cap F, is provided with spacing means, such as studs G<3>, so that on pressure developing in the container, the diaphragm will distend as a whole until the spacers come in contact with the dome, after which the thinner central part will distend quickly, opening the pinhole to allow gases to escape, through perforations F<1> in the dome F. Specifications 438,934, 438,950, and 476,688 are referred to.
Patent GB-506814-A (GB)
Title: Improvements in or relating to type printing telegraph apparatus
IPC: H04L19/00
Filed: 1937-12-03
Abstract: 506,814. Type - printing telegraphy. CREED & CO., Ltd., and MASON, F. P. Dec. 3, 1937, No. 33556. [Class 40 (iii)] A typewheel or like shaft 1 is accurately positioned by one or other of two corrector wheels 2, 3, according as a letter in an odd or in an even position on the typewheel is to be selected. The teeth of the corrector wheels are staggered and co-operate with a lever: 5 which is pulled down by a corrector cam or printing- magnet acting on the downward extension 9 of a bracket 7 which carries the lever 5 and is pivoted on a shaft 8. The bracket 7 is moved along the shaft, so that the lever 5 may cooperate with one corrector wheel or the other, by a pivoted fork 11 which is operated by that element, in a 5-element signal combination, which distinguishes between adjacent positions on the typewheel. This may be the last element in each signal in aggregate-motion apparatus of the kind described in Specification 466,815, or some other element in a permutation selecting device. In a modification, Fig. 2 (not shown), two levers, one for each corrector wheel, may be alternatively brought into operation instead of the slidable lever 5. The lever or levers may be selectively operated as described in Specification 499,209.
Patent GB-172216-A (GB)
Title: Improvements in or relating to means for supporting or carrying artists' panels and the like
IPC: B44D3/04
Filed: 1920-11-29
Abstract: 172,216. Clayton, J. W. Nov. 29, 1920. Card and like stands; easel stands.-Folding stands for artists' panels, display cards, and the like. The panel E, Fig. 1, is held by two parallel grooved bars A drawn together by elastic bands B, the bars fitting at their ends into parallel grooves C of a frame D, Fig. 4, or in the side of a box, Fig. 5. When a frame is used it is mounted as shown on uprights G so that it can be set at various inclinations, and is clamped by means of screws I. Bottom rests H<1> may be added. The frame may be provided with another pair of grooves to take a background card, &c.
Patent GB-655323-A (GB)
Title: Improvements in short path fractionating stills
Inventor: BURROWS GODFREY
IPC: B01D3/08
Filed: 1947-12-19
Abstract: <PICT:0655323/III/1> <PICT:0655323/III/2> <PICT:0655323/III/3> <PICT:0655323/III/4> A short-path fractionating still comprises several annular evaporating-channels of progressively increasing diameter arranged concentrically at increasing or decreasing heights with respect to the horizontal plane through the channel of smallest diameter, and annular condensing surfaces, one for each channel, arranged concentrically over and close to the channels; each surface being inclined to the horizontal plane and being so disposed that distillate from any one channel is delivered by gravity to the next higher channel.  The distillate is withdrawn from the highest channel, and the distillation-residue from the lowest; fractions may be withdrawn from intermediate channels. Fig. 1 shows a still which is suitable for the fractionation of a liquid having a high proportion of more-volatile components. There are six channels 16-21 subdivided into cells 23 (Fig. 2), by radial barriers 24.  Each cell has a partition 22, and the partitions are provided with alternately-spaced slots 25.  The channels are heated by electric heaters 26.  Condensing surfaces 27-31 cooled by circulating liquid in pipes 37, are arranged over the channels so that liquid evaporated from any channel is condensed on the surface above it; and the condensate runs down the surface to its undulating lower edge (Fig. 3), and drips into the next higher channel from points 33 positioned over the side of each cell remote from the slot 25.  The liquid to be distilled is introduced into the still through pipe 11, flows over the serrated edge of distributor 12, spreads over conical surface 13, and drips into channel 19.  The distillate is withdrawn from channel 21 through valve 34 and pipe 35.  By controlling valve 34, distillate may be accumulated in channel 21 faster than it is withdrawn through pipe 35, and so overflows through slots 25 into channel 20, i.e. reflux is obtained.  The distillation-residue is withdrawn from the still through pipe 36.  Fig. 6 shows a portion of a still wherein the successive condensates flow towards the centre of the still in film-form over the sloping floors 45 of cells 46.  This modification is suitable for the fractionation of heat-sensitive liquids having a high proportion of less-volatile components.  An outlet is provided at one of the lower corners of each cell through which liquid flows into a sloping channel leading down to the lowest cell 48.  The stills may also be used for the fractionation of condensable (e.g. hydrocarbon) gas mixtures by operating at low temperatures and low pressures.  The condenser is then cooled by a suitable refrigerant, and the evaporator is cooled also, but the channels have controllable heating units to provide sufficient heat to effect evaporation.
Patent GB-1260015-A (GB)
Title: Improvements in the manufacture of synthetic textile yarns for hosiery
Inventor: ALEXANDRE ALBERT MARCEL CYPRIE
IPC: D02G3/26
Filed: 1969-07-03
Abstract: 1,260,015. Twisted yarn. ETABS BONNAUD-ALEXANDRE. 3 July, 1969 [3 July, 1968], No. 33665/69. Heading D1F. A process for the manufacture of a yarn which can be used particularly for hosiery, wherein the yarn is subjected to twisting and untwisting operations, is characterised in that a synthetic material yarn is first twisted to a value ranging between one third and one quarter of its saturating twist, this twist is then fixed and the yarn is then partially untwisted leaving a final twist with the same direction as the initial twist which was imparted and ranging between 0.1 and 0.3 times the value of that initial twist. The initial twist is preferably fixed in the presence of saturated steam in a non- oxidising atmosphere, and is effected by a treatment including a slow rise in temperature, a stage at the maximum temperature, rapid cooling followed by a rapid rise in temperature and finally cooling to room temperature. The thermal treatment may be repeated several times. The yarn may be given an initial S- or Z-twist and two yarns may be doubled for use.
Patent GB-1490166-A (GB)
Title: Process and pheresis procedure and disposable pheresis bowl therefor
IPC: B04B5/04
Filed: 1975-08-13
Abstract: 1490166 Blood transfusion HAEMONETICS CORP 13 Aug 1975 [15 Aug 1974 15 July 1975] 33802/75 Heading A5R [Also in Divisions Bl and B2] In a method of withdrawing whole blood from a donor, centrifuging the blood and returning the separated red cells to the donor, the whole blood is withdrawn from the donor by means of a phlebotomy needle 13 with simultaneous addition of anticoagulant by means of a pump 16 and tubing 15, and is fed by means of a pump 14 and a tubing 12 to the bottom of a lower red cell reservoir of a centrifuge bowl 10 which is rotated as the blood is delivered to it. During centrifuging the plasma fraction is separated and transferred via plasma ducts to an upper plasma reservoir of the bowl. After a predetermined amount of blood has been withdrawn from the donor, rotation of the bowl is stopped and the red cells are returned to the donor by reversing the flow through pump 14. An amount of saline or other volume extender may be pumped via tubing 17 and a pump 18 simultaneously with the cells to compensate for the loss of blood volume represented by the plasma. The cycle may be repeated to accumulate additional plasma in the plasma reservoir. After all the red cells have been returned to the donor, the tubing and needle connection is broken and the plasma reservoir is sealed off and severed from the red cell reservoir which is discarded. The plasma is then frozen in the reservoir in which it was collected. Alternatively, the plasma may be transferred to a separate plastics bag.
Patent GB-948249-A (GB)
Title: A method of removing phosphates from sewage
IPC: C02F1/52
Filed: 1962-09-04
Abstract: In a method of removing phosphates from aerobic purification of sewage sedimentation in several stages, prior to clarification, the pH is adjusted to remain at least at 8 for 3 minutes or more. Lime, aluminium and iron salts, sodium or magnesium hydroxide are the conventional additives of the process.
Patent GB-1317110-A (GB)
Title: Steam autoclaving of agglomerated mineral products
IPC: B01J3/04
Filed: 1971-07-20
Abstract: 1317110 Treating agglomerated mineral products COLD-BOUND PELLETS AB 20 July 1971 [24 July 1970] 33905/71 Heading ClA To inhibit bursting of agglomerated mineral products during steam autoclaving by the pressure by air inside them, free nitrogen-containing gas is introduced into the autoclave at a pressure up to 3 atmospheres gauge prior to charging with steam. This gas, e.g. air or N 2 -enriched air, may have a higher temperature than that of the agglomerates. The agglomerates may be pellets. The mineral concentrates which are to be agglomerated may be mixed with 20% by volume of binding agent, e.g. slaked lime or slaked steel furnace slag.
Patent GB-412850-A (GB)
Title: Improvements in and relating to induction motors of the squirrel cage type
IPC: H02K17/30
Filed: 1933-12-02
Abstract: 412,850. Induction motors. WORTHINGTON-SIMPSON, Ltd., Lowfield Works, Newark - on - Trent.-(Soc. de Participation Financiere Electric Pump), and SOC. DE PARTICIPATION FINANCIERE ELECTRIC PUMP, 5, Rue Philippe, Luxemburg. Dec. 2, 1933, No. 33953. [Class 35.] The conductor bars 2 of a squirrel-cage rotor are connected to a series of spaced elements 3, which are supported by an insulating plate 4 on the shaft 7. A binding wire 5 of ohmic resistance, higher than the bars or segments, is wound in the form of a helix around the elements 3 and limits the starting current through the bars. A centrifugal switch comprising the weights 13, spring 11 and copper contacts 9 short-circuits the ends of the bars when the rotor has attained a predetermined speed.
Patent GB-190636-A (GB)
Title: Adjustable carriers for sewing machines
IPC: D05B75/02
Filed: 1921-12-20
Abstract: 190,636. Fairweather, W., (Singer Manufacturing Co.). Dec. 20, 1921. Sewing-machines; stands; starting and stopping gear.- Sewing-machines, such as machines for sewing the mouths of filled sacks, are adjustably supported in working position by means comprising separable parts which permit the sewing. machine to be moved freely out of operative position. A machine 1 pivotally mounted in a bracket arm 3 hinged to a support 5 is adjustably supported by a screw 11 pivoted to a base and carrying a nut 14 which enters a tapered sleeve 16 pivotally mounted on screws 20, 21 in bracketmembers 24, 25 on the machine frame. A bevelwheel 18 fast to the sleeve 16 meshes with a. bevel-wheel 32 journaled on the screw 21 and rotatable by a hand-wheel 28 to effect the adjustment. On lifting the machine the sleeve 16 is freely disengaged from the nut 14. A belt shifting arrangement is provided comprising a lever 33 with ben-engaging pins 36 and weight 38 actuated by a flexible connection 40 passing over a pulley 41 to a bell-crank lever 43 pivoted at one end to a foot-operated lever 46.
Patent GB-844428-A (GB)
Title: Improvements in or relating to electro-magnetic relays
IPC: H01H50/34
Filed: 1958-10-27
Abstract: 844,428. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 27, 1958 [Nov. 14, 1957], No. 34326/58. Class 38 (5). An L-shaped armature is arranged with alternative pivotal axes so as to provide an alternative leverage ratio, i.e. ratio of the distance from the pivotal axis to the effective centre of the pole to the distance from the pivotal axis to a contact spring-actuating member. In Figs. 1 to 4 the armature 12 has two grooves 14, 14<SP>1</SP>. A member 13 can be secured by screws 15 to the yoke 19 in either of two positions whereby a flange 13<SP>1</SP> which forms the pivot edge for the armature engages either grooves 14 or 14<SP>1</SP>. For engagement with the groove 14 the member 13 is rotated through 180 degrees from the position shown. Ir either case the screws 15 are not tightened until the face of the armature 12 is parallel to the end of the core 11 when in the attracted position. The armature is held by a spring clip 18 engaging slots 23<SP>1</SP> in a projection 23 of the member 13, which passes through a hole 12<SP>1</SP> in the armature. The clip 18 also holds one end of the armature return spring 24. In Figs. 5, 6 and 8 the armature 32 has a flat under-surface 41 which rolls on wire members 42 which may fit in slots 39 or 40 in the yoke 33. The armature is held in position by a flat spring 35 and screws 37. The wire members 42 may be semi-circular or triangular in section.
Patent GB-1514398-A (GB)
Title: Water storage vessels
IPC: F24H9/12
Filed: 1977-02-01
Abstract: 1514398 Hot water systems ELSY & GIBBONS Ltd 1 Feb 1977 [18 Aug 1976] 34350/76 Heading F4A In a hot water storage vessel 2 having an inlet 4 for supplying cold water from a supply tank 8 to the lower regions of the storage vessel 2, a primary draw-off pipe 10 extends downwardly from a primary outlet 12 and a secondary draw-off pipe 14 extends from a secondary outlet 16 at a level below the primary outlet 12, the secondary draw-off pipe terminating within the primary draw-off pipe 10. The outlet 18 from the secondary draw-off pipe is subjected to the pressure of water flowing within the primary draw-off pipe in such a manner that water flows from the vessel through the secondary draw-off pipe 14 only when the water level in the storage vessel 2 falls to substantially the level of the primary outlet 12. Water can then flow from the vessel 2 through the secondary pipe 14 into the pipe 10 until the level of water within the vessel 2 falls to that of the outlet 18 from the pipe 14. The water in the vessel 2 may be heated by an immersion heater (not shown).
Patent GB-830567-A (GB)
Title: Improvements relating to chains of synthetic material
IPC: F16G13/14
Filed: 1957-11-04
Abstract: 830,567. Moulding chains. KETTENWERKE SCHLIEPER G.m.b. H. Nov. 4,1957 [Nov. 5, 1956 ; Sept. 28, 1957 ; Oct. 9, 1957], No. 34355/57. Class 87(2). [Also in Group XXV] A chain is made from fibrous material wound in ring shape and bonded with a thermosetting substance. Each link may be covered with wear..resistant plastic material, which may comprise the mould in which the link was wound. As shown, a glass fibre 20, Fig. 4, after passing through a bath of thermosetting material (not shown), is wound into a chain link by rotation of a mould 10, 11 provided with a slot round its periphery for the passage of the fibre. The mould may comprise two U-shaped parts, or (as shown in Fig. 4), each half may be further divided longitudinally and joined by clips 17. Alternatively the mould may be divided longitudinally only, Figs. 15, 16, in which case each half has a cut-away portion 32a, to enable it to engage the preceding link, and may have a projection 33a engaging with the cut-away portion of the other half. The moulds may be expendable, (e.g. of sand), or they may be reused, or they may be left on to form an outer casing for the links. In the latter case they are formed from a synthetic material which is insoluble in water and resistant to wear, and adheres to the bonding substance. If the bonding substance is a polyester, polyvinylchloride is preferred for the casing. Friction-reducing substances such as graphite and molybdenum sulphide may be added. The chain links may be circular, and of any desired cross-section.
Patent GB-1504184-A (GB)
Title: Composite anodes for alkaline cells
IPC: H01M10/24
Filed: 1975-03-04
Abstract: 1504184 Alkaline cells UNION CARBIDE CORP 4 March 1975 [18 March 1974 (2)] 34439/77 Divided out of 1504183 Heading H1B An alkaline cell, e.g. Zn-MnO 2 , has an anode comprising Zn particles, a cross-linked polyacrylamide and alkaline electrolyte (KOH). HgO may be added to amalgamate the Zn powder. Examples of the polyacrylamide are disclosed.
Patent GB-769601-A (GB)
Title: Improvements in screw slotting machine
IPC: B23Q7/00
Filed: 1954-11-29
Abstract: 769,601. Making screw-heads. ROY, E. Nov. 29, 1954 [Dec. 4, 1953], No. 34549/54. Class 83 (3). A screw-slotting machine comprises a movable carrier 5 notched to receive screw blanks 42, means 15, 15a for feeding the blanks into the notches, resilient means 29-31 to urge the blanks into the notches and a stationary member 21 to retain the blanks in the notches. The spring-fingers 29-31 urge the blanks into the notches as they are fed by gravity between the tracks 15, 15a. If an oversize blank is encountered, a block 25 carrying the spring-fingers is raised to actuate a switch 40 to stop the machine. As the blanks approach the saw 46, a ramp on the retaining-disc 21 presses the blanks firmly into the notches, where they are held by spring-fingers 45 and a retaining-plate 48 as the slots are cut.
Patent GB-323093-A (GB)
Title: Improvements in gears
IPC: F16H37/08
Filed: 1928-11-23
Abstract: 323,093. West, C. A. Nov. 23, 1928. Variable-speed gearing.-A two-speed bevel gear comprises crown-wheels 8, 18 driven alternatively by pinions 7, 17 adapted to be connected to a driving-shaft 1 by a sliding splined sleeve 4 with internal clutch teeth 20. The pinions 7, 17 are fast respectively upon solid and hollow shafts 2. 3 which, according to this invention, are independently supported at their ends in taper roller bearings so as not to touch one another. These bearings are shown at 5, 6, 15, 16. The bearings 15, 16 of the outer shaft may be supported in a tube 26 longitudinally adjustable. The gearing may be used upon a vehicle in series with the usual change gearing.
Patent GB-636651-A (GB)
Title: Improvements relating to valves for use in pneumatic systems
IPC: F16K11/085
Filed: 1947-12-30
Abstract: 636,651. Rotary cylindrical valves. HYMATIC ENGINEERING CO., Ltd., and JAY, J. B. Dec. 30, 1947, No. 34593. [Class 135] A rotaryselector valve for controlling pneumatic rams and the like comprises a cylindrical valve member a with a skew-like annular groove b in its cylindrical surface and two similar grooves c, d substantially parallel to the groove b containing resilient packing rings, the valve member rotating in a cylinder e having one or more air supply ports f, an exhaust port i and diametrically opposite branches g, h leading to the ends of the ram or the like. When one of the branches g or h communicates through the groove b with the supply port f, the other branch h or g communicates through a peripheral recess with the annular exhaust port i. A further packing ring k is provided in the end of the cylinder e. The valve member a may be made as a plastic moulding and may be axially located by a circlip sprung into a groove in the cylinder e. Two or more rotary valves may be arranged coaxially, for instance in tandem and connected either rigidly or with lost motion between them. According to the Provisional Specification two air inlet ports are provided and two rotary valves may be arranged coaxially one inside the other.
Patent GB-448269-A (GB)
Title: Improvements in the manufacture and production of ethyl chloride
IPC: C07C17/08
Filed: 1934-12-05
Abstract: Ethyl chloride is produced by reacting ethylene with hydrogen chloride in the presence of activated zinc halides supported on carriers.  The activating additions to the zinc halides are the halides of monovalent metals or of divalent metals other than zinc, such as lithium, magnesium, calcium, cuprous, cupric, and stannous chlorides or bromides.  The activator may be 20 per cent of the zinc halide.  The carrier may be clay sherds, wood charcoal, kieselguhr, or active silica.  For instance, zinc and stannous chlorides are dissolved in water and concentrated hydrochloric acid and applied to silica gel, the moist mass being then heated while stirring until an opaque product is produced. The production of ethyl chloride may be effected under pressure, for instance, 30--60 atmospheres at ordinary temperature, but the reaction is facilitated by higher temperature, such as 150 DEG  C. At atmospheric pressure the temperature may be 180--300 DEG  C.  When dilute ethylene is used it is preferable to use pressure.  In examples: (1) zinc chloride and stannous chloride on silica gel, and (2) zinc chloride and cuprous chloride on silica gel are used; in the latter case an autoclave is employed, at 30 atmospheres pressure.ALSO:Catalysts for the production of ethyl chloride from ethylene and hydrogen chloride consist of activated zinc halides supported on carriers.  The activating additions to the zinc halides are halides of monovalent metals or of divalent metals other than zinc, such as lithium, magnesium, calcium, cuprous, cupric, and stannous chlorides or bromides.  The activator may be 20 per cent of the zinc halide.  The carrier may be clay sherds, wood charcoal, kieselguhr, or active silica.  For example, zinc and stannous chlorides are dissolved in water and concentrated hydrochloric acid, and applied to silica, gel, the mass being then heated while stirring until an opaque product is produced.  In examples: (1) zinc chloride and stannous chloride on silica gel and (2) zinc chloride and cuprous chloride on silica gel are used.
Patent GB-195450-A (GB)
Title: Improvements in railway and like wagons
IPC: B61D7/10
Filed: 1921-12-29
Abstract: 195,450. Leeds Forge Co., Ltd., and Redpath, W. Dec. 29, 1921. Doors, wagon.-The end wall of the body of a wagon which terminates some distance above the level of the floor so as to leave an opening substantiallv the full width of the end is adapted to be closed by a sliding door held against the frame around the opening by both end and intermediate guide plates. The door 8 is adapted to be raised or lowered by screws 13, and is guided at each end in a rabbeted guide 9 and intermediate of its ends by guides 10. The stanchions 12, behind the guides 10 have inclined plates 20 fitted internally against the bottom to prevent accumulation of grain, &c., when the wagon body is tipped.