baber/WOPTO huggingface dataset:
Patent GB-767937-A (GB)
Title: Improvements in or relating to cut-outs for electrically heated utensils for heatingliquid
Inventor: NEWTON ALBERT EDWARD
IPC: H01H37/52
Filed: 1952-11-07
Abstract: 767,937. Thermal switches. HOTPOINT ELECTRIC APPLIANCE CO., Ltd. Nov. 9, 1953 [Nov. 7, 1952], No. 28033/52. Class 38(5) A cut-out for an electrically-heated utensil, e.g. a kettle, comprises a bimetal strip 25 carried by a frame 18 which also supports for sliding movement an operating member 29 adapted when released to eject a plug from the kettle socket. The member 29 carries at its inner end a second bimetal strip 34 having a lug 35 adapted normally to underlie the end of strip 25, thereby maintaining engagement between a tongue 40 on the frame and a shoulder 39 on the member 29 which is urged to the right by a spring 32. The frame is slid into a cylindrical casing 12 and secured in place by an insulating contact-carrying base 16, thermal contact between a flange 26 of bimetal 25 and the sheath 11 of the heater 10 being assisted by a spring 45. When the heater 10 is covered by water and is energized, both bimetals deflect in the same direction and the member 29 is not released. If the heater becomes uncovered, however, bimetal 25 deflects more than bimetal 34 (which is heated primarily by the water) and releases the lug 35 so that the member 29 is forced upwards and to the right to disengage tongue 40 and shoulder 39 and to eject the plug. The bimetal 34 is laterally adjustable by a screw 41 having a guide extension 43 movable in a slot 42 in the frame. According to the Provisional Specification, the frame is in'two parts joined at each end by plates one of which has a metal stud securing the bimetal 25 and in thermal contact with the sheath 11.
Patent GB-778028-A (GB)
Title: Improvements in or relating to an apparatus for volumetric measurements
IPC: G01F17/00
Filed: 1955-10-03
Abstract: 778,028. Measuring cubical contents. FATIO, P. Oct. 3, 1955, No. 28047/55. Class 106 (1). In apparatus comprising a measuring container 2 held up to a cover 1 through which air under measured pressure is admitted to the container, means for clamping the container against the cover are arranged on a support 4 secured to the cover, and one or more resilient elements are interposed so as to act resiliently on the base of the container. In the embodiment of Fig. 1, the end 5 of the support 4 carries a shaft 7 with an eccentric portion 6 acting on a plunger 10 adapted to bear against the base of the container 2. The bearings for the shaft 7 are spaced apart sufficiently for the eccentric portion to flex downwardly as the shaft is rotated by its handle to clamp the container in position. Moreover, a recessed disc 11 is interposed between the plunger 10 and container 2, the centre of the disc flexing upwardly. In a modification, Fig. 8, the container 2 is secured in position by means of a clamping screw 21 acting through one or more resilient cup washers 22. In both constructions, a rubber gasket 13 is provided in an annular recess 14 in the cover 1, and lies flush with the' surface of the cover when the container is clamped in position.
Patent GB-220854-A (GB)
Title: Improvements relating to cutting tools for slotting and like machines
IPC: B23D13/00
Filed: 1923-11-07
Abstract: 220,854. Muir & Co., Ltd., W., and Melloy, J. H. Nov. 7, 1923. Slotting.-In cutting-tools for slotting and like machines of the type in which the tool is secured in a holder by a bolt and spiral spring arranged to provide relief on the return stroke, means are provided for moving the tool from engagement with the holder and relieving it of spring pressure, thus facilitating replacement of the cutter without removing the tool-holder from position in the tool-box. The lateral apertures g, h in the tool-carrying bolt e and in the tool-holder c are provided for the insertion of a tommy-bar or the like so that the bolt can be moved to relieve the tool a of spring pressure. A collar f on the bolt limits the relieving' movement of the cutter.
Patent GB-863757-A (GB)
Title: Improvements in or relating to an impeller pump
IPC: F04D29/42
Filed: 1958-09-02
Abstract: 863,757. Mounting electric motors. TOKHEIM CORPORATION. Sept. 2, 1958 [Sept. 19, 1957], No. 28158/58. Class 35. [Also in Group XXVI] The driving motor 11 of a submersible centrifugal fuel pump 10 has a depending skirt 80 into which the upper end of the pump is inserted, securing tongues 82 then being bent inwardly into openings 84 formed in four posts 108 of the pump casting. The pump is driven through a magnetic coupling similar to that described in Specification 818,921 and comprising annular magnets 64, 126 separated by the imperforate end wall 44 of the motor casing. The motor is built to a wide tolerance range in respect of its load-speed characteristic, and the load on the motor is adjusted by a corresponding variation in the number of laminations used in building up the laminated impeller 160 and stator 140 of the pump, whereby the speed, and hence the discharge pressure of the pump, are kept to a narrow tolerance range. Specification 818,922 also is referred to.
Patent GB-284794-A (GB)
Title: Improvements in and relating to apparatus for drawing metal tubes
IPC: B21C1/30
Filed: 1926-11-10
Abstract: 284,794. Marshall, V. H. Nov. 10, 1926. Drawing.-The carriage K of a tube drawbench is returned to its initial position, after completion of the drawing operation and after release of the hook L from the drawing chain M, by a rope E wound on a drum D which is driven by a gear driven shaft A through a hand-controlled friction clutch B. A spring friction-band F whose pressure may be regulated by a screw J is fitted on the drum to prevent over-running.
Patent GB-847535-A (GB)
Title: Phase modulation circuits
IPC: H04L5/12
Filed: 1957-09-10
Abstract: 847,535. Multiplex telegraphy. COLLINS RADIO CO. Sept. 10, 1957 [Jan. 8, 1957], No. 28553/57. Class 40 (4). [Also in Group XL (c)] In a. " twinplex " system in which the various combinations of mark and space on the. two channels determines the phase of the transmitted frequency, the frequency source 10 supplies a cascaded connection of phaseshifting circuits 11, having tappings connected via output gates 12 to a common output 16. The system is of the type in which the mark space combinations determine the phase of an output pulse relative to the immediately preceding output pulse, the successive combinations M 1 M 2 , S 1 M 2 , S 1 S 2  and M 1 S 2  being represented by phase shifts of 45 , 135, 225 and 315 relative to the preceding pulse. In this arrangement in two successive pulses the output may require a phase shift of any of the values 0, 45, 90 . . . 315 and accordingly each of the eight networks 11 produces a phase shift of 45. The two channels feed their information over leads 21, 22 and 23, 24 respectively the information on leads 21, 23 being inverted with respect to that on leads 22, 24 respectively. Accordingly, gates 31 ... 34 emit an output on one of leads 41 ... 44 indicative of the mark-space combination. These leads feed horizontal groups A, B, C, D of eight " and " gates, each gate in a column having an input obtained from a shift register 46. Each shift register corresponds to a particular phase and is arranged to emit a pulse if it corresponds to the phase of the previously emitted pulse. The gates in the column of a shift register say the 225  register are associated respectively with phases lagging by 45, 135, 225; 315, on the 225 phase, i.e. with 270, 0, 90, 180. Thus assuming that the 225  shift register emits a pulse and the S 1 , S 2  combination is to be transmitted then with lead 43 marked and the vertical from the 225 shift register pulsed the 90 gate passes a pulse which opens the 90 output gate 12 to pass a current having that phase to the output terminal 16. The pulse is also inserted into the 90 shift register 46 to provide a phase reference for the next pulse. It is arranged to provide a transient voltage to insert an initial pulse in the 315 shift register when the circuit is first switched on. Specification 828,782 is referred to.
Patent GB-1280562-A (GB)
Title: Process for the purification of pyromellitic acid dianhydride
IPC: C07C51/573
Filed: 1970-06-12
Abstract: 1280562 Purification of pyromellitic dianhydride VEBA-CHEMIE AG 12 June 1970 [13 June 1969] 28623/70 Heading C2C Pyromellitic dianhydride is purified by treating it with an organic solvent and acetic anhydride in suspension under stirring preferably at a temperature of 0-60‹ C. Suitable solvents are esters of C 1-4  aliphatic monocarboxylic acids with C 1-4  monohydric alcohols or C 2-6  aliphatic ketones. The organic solvent is preferably used in quantities of 1-2À5 litres per kg. of the dianhydride and the acetic anhydride in 1-3 times the theoretical amount based on the free acid content of the dianhydride. The organic solvents used in the examples are methyl ethyl ketone and ethyl acetate.
Patent GB-427183-A (GB)
Title: Improvements in or relating to earth-leakage protective arrangements for electric apparatus
IPC: H02H11/00
Filed: 1933-10-17
Abstract: 427,183. Protective cut-out arrangements. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, and LEYBURN, (formerly LEBEN), H., 212, Wingrove Road, Newcastleon-Tyne. Oct. 17, 1933, No. 28650. [Class 38 (v)] An earth-leakage protective arrangement comprises a direct earth connection from the apparatus frame, a tripping or indicating device connected between the frame and another earth or the neutral supply conductor, and means for applying a testing potential continuously to a tapping point on the coil of the device. Currents due to the applied potential normally balance each other, but the device is operated in the event of a fault in the protective or earthing circuits. In Fig. 1, apparatus having a casing C and windings C<1> is connected across a line A<2> and neutral A<3> of a supply having an earthed star-point B<1>. The casing C is earthed at E and connected through a normally-closed testing switch G and sensitive winding D<1> to the neutral A<3>, the line A2 being connected to a mid point tap D<2> through an indicator lamp F or other resistance whereby a testing potential is continuously applied while breaker D is closed. The coil D<1> may be a trip or indicator coil, or the coil of a trip or indicator - controlling relay, and normally currents flow from A<2> through its halves in such a way as to balance one another, and the continued lighting-up of F indicates that the protective circuit is sound. If any part of the earthing circuit fails, however, or if a framefault occurs in C, the balance is upset and the breaker is tripped, so giving an indication. Fig. 2 shows a form in which the coil D<1> is connected between casing C and an auxiliary earth H, and the tap D<2> is shown connected to the line A<2> on the supply side of D whereby the testing potential is applied even with D open. If the latter is a loose-handle breaker, closure will be prevented unless the protective circuit is sound, but an interlock device may be connected between A<2>, D<2> in addition to, or instead of, the lamp F to prevent closure if the coil of the device is de-energized due to a break in this connection or failure of the supply. If the connection is made to the apparatus side of D, the lamp F can replace the indicating lamp normally provided on, for instance, domestic cookers. When the resistance of E<1> is low enough for fuses J to protect against leakage, the protective circuit of the invention will give back-up protection if for any reason the fuses fail to blow, and will give an indication of a break in itself whether or not there is a fault in the apparatus. The invention can also be adapted to include in the area of protection the casing of the breaker D by including that casing in series in the earth circuit E<1> and connecting the ends of D<1> to that casing and to the auxiliary earth H, Fig. 3 (not shown). When applied to portable apparatus, a trailing cable is provided having two extra cores, one for the main earth and the other for the trip coil connection.
Patent GB-480009-A (GB)
Title: Improvements in or relating to latch or combined latch and lock fastenings for doors
IPC: E05B15/02
Filed: 1937-05-29
Abstract: 480,009. Striking -plates &c. for latches. CRANE, G. F., and SHORTHOUSE, J. H. May 29, 1937, No. 28657. Divided out of 475,898. [Class 44] In order to ensure proper seating of a door to prevent draughts and rattle, the boxkeeper 3 for a latch of rim type has an inwardly directed tongue 6 forming an abutment against which the latch 4 bears. The tongue is formed by pressing out from the latch-receiving aperture in a plate 6a secured to the striking- face by a screw or screws 7, and its inclination may be adjusted by a screw or screws 8 in the keeper wall.
Patent GB-239088-A (GB)
Title: Improved signalling apparatus for regulating road traffic
IPC: G08G1/09
Filed: 1924-12-01
Abstract: 239,088. Sidebotham, E. Dec. 1, 1924. Road signals. - Apparatus provided at road junctions comprises a frame or casing having a number of coloured signals or flags each independently operated in combination with boards or plates each correspondingly caloured, one colour for each road, the boards &c. being arrayed on buildings or posts on the roads. In one example applied to the junction of six roads, the frame b carries six signal arms a each operated by its lever d, three being arranged to project from one side and three from the other. The signals may be illuminated.
Patent GB-1169828-A (GB)
Title: Pulse Retiming Apparatus
IPC: G06D1/00
Filed: 1967-06-22
Abstract: 1,169,828. Fluid pulse retiming circuit. INTERNATIONAL BUSINESS MACHINES CORP. 22 June, 1967 [28 June, 1966], No. 28790/67. Heading G4P. In a circuit for bringing pulses that may occur at random into registration with the next pulse of a train of clock pulses, input pulses from a single-shot 10, Fig. 1, are routed to a buffer storage latch 18 either by a first path comprising an AND gate 12, a latch 13 and an OR gate 14, if sufficient coincidence between the input pulse and a clock pulse 21 occurs to set the latch 13 ON, or by a second path comprising a delay 15, a NAND gate 16, a delay 17, and the OR 14, the two paths being coupled by a connection from latch 13 to NAND gate 16, so that if the first path is utilized the second path is inhibited, and the output of the buffer storage latch 18 is sampled by clock pulses delayed by a network comprising delays 22, 24a, 25 and NOR gates 23 and 24, the overall delay being such that if an input pulse coincides with a clock pulse at the input gate 12, it will coincide with the same (but delayed) clock pulse at the output gate 19. If an input pulse does not coincide with a clock pulse at the input gate 12, the delay in the second path will ensure that it will coincide with the next (delayed) clock pulse at the output gate 19. Resetting loops are provided for both of the latches. Two physical embodiments of the logical circuit of Fig. 1, are described (Figs. 2 and 7, not shown) using diaphragm logical elements of the type described in Specification 1,055,045, which is referred to.
Patent GB-663555-A (GB)
Title: Improvements in or relating to copolymers of styrene
IPC: C08F12/12
Filed: 1948-11-05
Abstract: Terpolymers are made from a mixture containing 2 to 90 per cent of alpha methyl styrene, 10 to 98 per cent of styrene, and 0.1 to 12 per cent of acrylonitrile by heating in aqueous emulsion with agitation at a temperature between 60 DEG  C. and the boiling point of the solution, in the presence of a water soluble peroxy compound, such as sodium or potassium persulphate, sodium perborate or hydrogen peroxide, and an emulsifying agent such as sodium lauryl sulphate, sulphonated hydrocarbons of high molecular weight, soaps prepared from animal and vegetable oils and rosin, triethanolamine, and alkyl benzene sulphonates.  Also present may be buffering agents.  The catalyst solution may be added intermittently or continuously to the reaction mass, and it is preferred that the temperature and rate of monomer addition should be uniform during reaction.  The copolymer may be recovered from the reaction mixture by freezing, or by the addition of electrolytes or alcohols.  The Specification as open to inspection under Sect. 91 also describes the preparation of a copolymer of styrene and alpha methyl styrene.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1350399-A (GB)
Title: Slux for submerged arc welding
IPC: B23K35/36
Filed: 1971-06-18
Abstract: 1350399 Submerged arc welding flux SOUDOMETAL SA. 18 June 1971 [19 June 1970] 28809/71 Heading C7M A submerged arc welding flux is made by adding an aqueous alkali metal silicate solution having a viscosity of < 5 c. p. s. at 20‹C to a dry powdered flux mixture containing aluminous cement powder which contains a maximum of 20 wt. per cent SiO 2 , and drying the mixture to form a granulated flux with a maximum 10 wt. per cent SiO 2 . The mixture preferably contains 10-75 wt. per cent aluminous cement which contains 33-80% Al 2 O 3  and 20-45% CaO, 0-25% of at least one alkaline earth metal oxide, 0-10% SiO 2 , 0-20% at least one basic or amphoteric oxides, 5-15% at least one alkali metal and/ or alkaline earth metal and for aluminous fluorides and 0-30% alloying elements. The aqueous alkali metal silicate solution preferably has a molecular SiO 2  : alkali-metal ratio of 2À8: 4 and a viscosity of 1-10 c. p. s. The oxides in the flux may be MgO, MnO, FeO, K 2 O, Na 2 O, Al 2 O 3 , TiO 2 , ZrO 2 , the fluorides, CaF 2 , Na 3 AlF 6  or elpasolith NaK 2  AlF 6 ; the alloying elements Ni, Cr, Mn, Nb, Al. The flux is used for submerged arc welding or deposition of Ni Fe or Cu alloys containing oxidizable elements.
Patent GB-519860-A (GB)
Title: Improvements in and relating to rotary valves for internal combustion and other heatengines
IPC: F01L7/02
Filed: 1938-10-05
Abstract: 519,860. Valves. FLETCHER, A. H. CUDDON-. Oct. 5, 1938, No. 28841. [Class 122 (ii)] [Also in Group XXVII] A rotary valve for steam &c. engines consists of two or more resilient sleeves fitting one within the other, and each formed with a longitudinal slit, the sleeves being assembled so that, in the early part of the power stroke, one of the slits is opposite the cylinder port, and the other is displaced 40-60 degrees therefrom. Fig. 1 shows one of the sleeves with a port 2 and longitudinal slit 4, and two such sleeves may be arranged to rotate between a bore in the cylinder head and a coaxial stationary core. Valves may be coupled at their ends by dogs 3, and also to corresponding dogs on a driving-pinion.
Patent GB-604157-A (GB)
Title: Improvements relating to apparatus for cooling milk and for filling milk containers
IPC: A01J9/04
Filed: 1945-10-31
Abstract: Milk from a cow-milking machine is supplied to a tank, then to a cooling chest under partial vacuum and then to milk churns, also under partial vacuum.
Patent GB-207677-A (GB)
Title: Method of making refractory articles
IPC: C04B35/52
Filed: 1922-10-24
Abstract: 207,677. Marks, E. C. R., (Buffalo Refractory Corporation). Oct. 24, 1922. Refractory substances containing graphite.-A mixture of graphite, a refractory electric furnace product, and a carbonizing binder, with or without a solid flux, is moulded and heated to carbonize the binder; the article is then dipped into a liquid flux, such as sodium borate or sodium silicate, and heated to a temperature of 1200‹ F. The refractory electric furnace product may be silicon carbide, fused magnesite, fused alumina, or fused silica. Feldspar may be used as the solid flux. The carbonizing binder may be molasses, pitch, or tar. The proportion of the ingredients may be 10-55 per cent of graphite, 20-80 per cent of refractory product, and up to 25 per cent of fluxing agent.
Patent GB-187969-A (GB)
Title: Improvements in and relating to compass and magnetic dip indicators
IPC: G01C17/00
Filed: 1922-10-24
Abstract: 187,969. British Thomson - Houston Co., Ltd., (Assignees of Abbot, C. G.). Oct. 27, 1921, [Convention date]. Magnetic compasses. - In a compass and magnetic dip indicator of the kind in which the magnetic needle is supported in liquid, the liquid is contained in a closed transparent gimbal-mounted vessel 10, the needle 22 is mounted on horizontal pivots on a frame which is mounted to turn about pivots in line with the vertical axis of the vessel, and the mean densities of the needle and of the frame are made equal to that of the liquid. In one construction, Fig. 1, an electromagnetic needle 22 is pivoted horizontally at its centre of gravity within a frame 29 free to turn about a vertical axis within the vessel 10. The upper part of the vessel 10 is hemispherical and the lower part is cylindrical and is closed by a base 16 with a packing ring 19, the parts being held together by bolts 17 connecting rings 18, 18<1> bearing on flanges on the vessel and the base respectively. The needle 22 carrying at one end a pointer 23 is provided with bearings 24, 25 formed on a metal band 26 which is secured to the needle so that the pivotal axis passes through the centre of gravity. The bearings 24, 25 are mounted on pivot needles 27, 28 carried by the frame 29 which comprises two hollow forked members 32, 33 of glass connected by metallic tubes 34, 35, and is mounted between upper and lower pivot bearings carried by the vessel 10. A pointer 44, secured to the frame 29 and disposed at right angles to the needle 22, indicates the compass bearing on a scale 21<1> on the vessel 10, which is also marked with concentric circles 21 co-operating with the pointer 23 to indicate the dip. The needle 22 is in the form of an electromagnetic winding 49, Fig. 3, on an iron core 50 within an insulating closed casing 51, the terminals 52, 53 of the winding passing through the wall of the casing near the pivotal axis. Two pairs of weighted clamping rings 54, 55 are adjustable on the casing 51 for balancing the needle. The terminals 52, 53 are connected to conductors enclosed within the frame 29 and supplied with current through the upper and lower pivots of this frame. In a modification, Fig. 5, the needle 22 is secured diametrically within a metallic sphere 60 formed in two halves insulated from each other and secured together by insulated bolts 61. At the ends of a horizontal diameter perpendicular to the needle, the sphere is connected by silk threads to a tubular ring 64 which is connected by other silk threads 65, 66 to the top and bottom of the vessel 10. The needle 23 indicates in this case both the compass bearing and the dip.
Patent GB-1117199-A (GB)
Title: Improvements in cutting tools
IPC: B23B27/16
Filed: 1966-06-28
Abstract: 1,117,199. Cutting tools. GENERAL ELECTRIC CO. 28 June, 1966 [11 Oct., 1965], No. 28969/66. Heading B3B. A cutting tool comprises a shank 1 with a hard metal cutting tip 3 secured to one end thereof, the cutting tool having a negative back rake angle B of 16 to 25 degrees and a negative side rake angle C of 5 to 9 degrees, the preferable back and side rake angles being approximately 20 and 8 degrees respectively. The side cutting edge angle is between 30 and 60 degrees.
Patent GB-225856-A (GB)
Title: Improvements in or relating to governors for pumps and elevators
IPC: G05D9/12
Filed: 1924-12-03
Abstract: 225,856. Soc. Generale Agricole. Dec. 4, 1923, [Convention date]. Mercury switches. -A tilting mercury switch k closes or opens the circuit to a pumping motor d, e according to the level of the liquid in the tank n. The tube k is fixed to a member t pivoted at s and a lever r<1>, r<2> also pivoted at s carries two adjustable pins r<1>, r<2> adapted to engage the member t w i t h a certain amount of lost motion. When the level of the liquid falls, a float p also falls and causes the pin r<2> to tilt the member t till a roller u, situated within the member t, rolls to the left and further tilts the member t till it strikes the pin r<1>, the mercury in the tube k simultaneously flowing to the left and completing the circuit between a contact j<1> and the casing of the tube.