baber/WOPTO huggingface dataset:
Patent GB-1433561-A (GB)
Title: Electromagnetic rotational positioning device
IPC: G01R5/14
Filed: 1974-04-04
Abstract: 1433561 Moving iron instruments FRITZ SCHWARZER GmbH 4 April 1974 [6 April 1973] 15068/74 Heading G1U An electromagnetic positioning device (e.g. a pen-recorder movement) comprises a rotatable armature permeated by a permanent magnetic field produced by a magnet mounted in a support of magnetically permeable material which also houses the armature and a conductor which when carrying current, generates a magnetic field which has two parts, one on each side of the armature axis of rotation which parts have opposite directions. All the magnetic fields are however orthogonal to the axis of rotation. As shown, magnets M mounted in recesses 5, 6 produce a field (full line) which crosses the radial gaps between poles 10-13 and the armature A. A coil W produces a second field (dotted) having two parts which pass in opposite directions through the armature. The effect of the current in the coil W is to increase the flux in diagonally opposite gaps and decrease it in the other two gaps. The armature thus rotates to the position of minimum reluctance and takes up a position indicating the current in the wire. The direction of rotation indicates the polarity of the current.
Patent GB-1034715-A (GB)
Title: Improvements in or relating to arrangements for the application of pressure in roll calenders
IPC: B30B3/04
Filed: 1963-04-17
Abstract: In a calendar roll arrangement having a moving working roll A (see Fig. not shown) and a fixed counter roll C the bearings of the movable roll are carried by pistons 2 moving in hydraulic cylinders 3 and the cylinders are in direct fluid communication with the hydraulic rides of a hydraulic-pneumatic double piston pressure intensifiers 5, 6, 7 the air cylinders of which communicate with a compressed air source 15 via pressure regulating valves 10, a common flow valve 11 and a multiple-way valve 12.  The movement of roller A in response to variations in thickness of the material passing through the rolls is thus taken up by the compressibility of the air in the pneumatic section of the system with little variation in the pressure exerted by the rolls on the material.  The system is initially adjusted as follows: Pneumatic cylinders 6 are connected to atmosphere.  Oil at low pressure is pumped via conduits 16 from oil supply 24 into the hydraulic side of the system until roll A contacts roll C and pistons 7 reach their lowermost positions resting on stops 8.  The oil supply is then cut off, the oil return path to oil container 24 closed and compressed air admitted into cylinders 6. The pistons 7 thus rise, forcing oil into apportioning cylinders 17 to force the pistons therein to their lowest positions.  At this point no more oil can be forced from the cylinders 6.  The maximum movement of pistons 7 and thus the roll A is thus determined by the size of cylinders 17.  The closest approach of rollers A and C is determined as follows: In the above operation pistons 2 have been raised to force oil through conduits 25 (constituting a second hydraulic system) which oil in the first instance flows away through a valve 27. When roll A contacts roll C valve 27 is closed.  Spring urged pistons in cylinders 26 are then adjusted to force fluid in the upper part of cylinders 3 and cause pistons 2 to move until the separation of the rolls is that required.
Patent GB-1534774-A (GB)
Title: Carburettor for an internal combustion engine
IPC: F02M17/08
Filed: 1976-04-13
Abstract: 1534774 Constant vacuum carburetter SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 13 April 1976 [17 April 1975] 15097/76 Heading F1H In a constant vacuum carburetter having tubular air and mixture throttle valves 24, 18, an air throttle valve by-pass tube 38, containing the fuel nozzle 42 in its Venturi section, extends into the Venturi section of the tube 60 which itself is disposed in the Venturi section of the carburetter body 14, the arrangement being such that at idle, tube 24 closes the air induction passage 22, causing good idle mixture atomization in the by-pass tube 38. At part or full throttle valve 18 opening, the dimter throttle depression transmitted via passage 34 to diaphragm 32 causes opening of the air throttle valve 24 and the associated fuel jet 52. An exhaust gas heated cone 20 which may be of parabolic shape co-operates with tube 18 to heat the idle and part throttle mixture. A rack and pinion arrangement 17 operates tube 18. Fuel is supplied to the nozzle 42 via bridge 46 from the annular duct 44.
Patent GB-503162-A (GB)
Title: Device for measuring characteristics of electric transmission apparatus
IPC: G01R27/32
Filed: 1938-05-20
Abstract: 503,162. Electric tests. STANDARD TELEPHONES & CABLES, Ltd. May 20, 1938, No. 15103. Convention date, May 22, 1937. [Class 37] For measuring the attenuation and phase-shift of an electric potential wave, in passing through a line or apparatus, e.g. an amplifier, attenuator, filter, or transformer 1, an oscillator 2 supplies a potential of constant amplitude to the apparatus 1 and the input to and output potentials from the apparatus 1 are combined in modulators 4, 5, respectively, with a potential of constant amplitude derived from an oscillator 3, the beat frequency potentials being amplified at 6, 7, respectively, and applied to two wattmeters 8, 9. The wattmeter 8 measures the product of the input and output potentials, while the wattmeter 9 measures the product of the output potential and of the input potential phase displaced by 90‹, potentials according to these products being applied to the deflecting plates of a cathode-ray tube 10. The frequencies of the oscillators 2, 3, are simultaneously varied so as to maintain the beat frequency constant over the frequency range for which the apparatus is to be used so that the cathode ray tube 10 traces out a polar or "Nyquist" curve, Fig. 3 (not shown) showing the attenuation and phase-shift for varying test frequencies. The elements 13 ..... 16, are for H.F. decoupling. Fig. 2 shows an automatic arrangement for providing a constant frequency separation of the potentials supplied in Fig. 1 by the oscillators 2, 3. Oscillators 171, 17<SP>2</SP>, stabilized e.g. by crystal, supply two fixed frequencies e.g. 6000 and 6002 kc. /sec., respectively. An oscillator 18 supplies a frequency Variable between e.g. 6020 and 10,000 kc. /sec. by means of a motor 27. The outputs of the oscillators 171, 17<SP>2</SP>, after amplification at 19, 20, are modulated at 4, 5, by the output of oscillator 18 after amplification at, 21, 22. A beat frequency variable between 20 and 4,000 kc. /sec. is selected by a low-pass filter 23 and amplified at 25, and similarly a filter 24 and amplifier 26 provide another beat frequency always differing from the output of amplifier 25 by 2 kc. /sec. The outputs of amplifiers 26, 26, would thus replace the oscillators 2, 3, of Fig. 1. Specification 374,130, [Group XL], is referred to.
Patent GB-326710-A (GB)
Title: Improvements in or relating to machines for testing the amount of twist in yarn, thread and the like
IPC: G01N33/36
Filed: 1929-05-14
Abstract: 326,710. Fine Cotton Spinners' & Doublers' Association, Ltd., and Hutchins, F. May 14, 1929. Yarns and threads, testing and inspecting.-A twist-testing machine for yarns, thread, &c. allows the average twist readily to be obtained from a number of tests or indicates the twist from each test. Yarn &c. 36 from a cop 19, Fig. 1, passes through a guide, between rollers 30, 34, through a slotted plate 39, through a pivoted clamp 43, 44, and a rotatable clamp 85, 89 to a take-up wheel 96. To open the clamps, a camplate 134 is turned to depress a frame, Fig. 3, pivoted at 120, which opens the hinged jaw 89 against pressure due to a spring 90, and an arm 61 presses a cup 56 against a pointed tail-piece to align the upper clamp and open it against spring pressure. The setting is such that the lower clamp is opened first to avoid exposing yarn above the clamps to untwisting force due to the untwisted specimen between the clamps. An arm 125 on the pivoted frame carries a pawl which turns a disc 143 having a spring return to a stop 148. The disc indicates the number of reciprocations of the rocking frame; i.e. the number of specimens tested. Extension of the specimen due to untwisting is taken up by the upper clamp turning under the influence of a weight 50. The specimen is observed through a microscope during untwisting, which is effected by turning a handle 107, bevel gears 70 or 71, according to the direction of twist of the specimen, being engaged with another gear 75 by a finger-piece 80. The number of turns is indicated on a counter 113 having a decimal wheel 114, the gearing 109 &c. being such that the number of turns per inch is indicated for a preferred length of specimen. At the end of a number of tests this indication is divided by that of the disc 143 to give the average twist. An alternative counter mechanism may be engaged by mechanism 174 &c. to show the turns per inch directly for each specimen, indications being read from a numeral wheel 180 and a decimal wheel 181 against an index mark 182. By depressing a handle, link mechanism 205, 206 declutches the wheels 180, 181, which carry weights to return them to zero reading. Cam wheels 186, 187, and studs &c. preclude the wheels 180, 181 stopping at top dead centre and increase the accuracy of the zero return. A threader 157 is provided for initially passing the yarn through the guides &c.
Patent GB-200311-A (GB)
Title: A method for the manufacture of magnesian cement
IPC: C04B22/06
Filed: 1922-05-30
Abstract: 200,311. Sperni, J. May 30, 1922. Concretes and mortars.-To cements of the kind comprising burnt magnesite and unburnt clay, with or without a small quantity of potassium salts, zinc oxide and one or more of the oxides of manganese, particularly the dioxide, are added to improve the adhesive and setting properties. The Provisional Specification states that the cement may be used either alone or in conjunction with filling materials, such as sand, sawdust, infusorial earth, cork- and leatherwaste.
Patent GB-202749-A (GB)
Title: Improved mount or frame for tickets, pictures cards and the like
IPC: G09F3/18
Filed: 1922-05-30
Abstract: 202,749. Merrell, E. H. May 30, 1922. Label &c. holders. - A mount or frame for removably holding tickets, pictures, cards, &c. and comprising a sheet a of stiff cardboard, sheet metal, celluloid or the like, has formed in it one or more pairs of vertical slots b, c to receive the ends of the cards &c. so that they may lie horizontally, the material between the slots being depressed to enable the card to lie flat on the depressed portion, and is provided with a space for permanent advertisements. Strengthening beads x, y, z may be pressed up from the material of the mount.
Patent GB-1223597-A (GB)
Title: Dispensing valve assembly
IPC: F16K5/04
Filed: 1968-03-29
Abstract: 1,223,597. Valves. CORNELIUS CO. 29 March, 1968 [5 Jan., 1968], No. 15259/68. Heading F2V. A dispensing valve for a pressurized carbonated slush-ice-beverage has a body 16 with a bore 22 in which is rotatably mounted a cylindrical plug with a flow passage 25 that communicates with a passage 24 in the valve body. A V-slot 32 in the side of the inner end of passageway 25 causes frothing of the beverage when the valve is only slightly open. Circular seals 26, 27 and integral longitudinal seals 28, 29 surround -the end of passage 24 when the valve is closed to prevent seepage of beverage. The plug is removably mounted in the bore 22 and is held therein by the abutment of the removable handle 14 and the shoulder 23 with the respective ends of the bore. A nut 18 clamps the valve body to the beverage container wall 15, a key 21 preventing relative rotation.
Patent GB-658148-A (GB)
Title: Thermostatically-controlled electric heater for liquid or semi-liquid substances
IPC: A47J36/24
Filed: 1949-06-09
Abstract: 658,148. Automatic temperature control systems. SCHMIDT, G. June 9, 1949, No. 15369. Convention date, June 12, 1948. [Class 38 (iv)] .[Also in Groups XI and XXXVII] A liquid heating vessel has two cycling bimetal switches S1 and S2, the first operated by the liquid temperature, the second by a heater V2. Originally S1 is open, and S2 closed, whereby the main heater VI is energized to heat the liquid. Eventually S1 is closed, so completing a parallel circuit containing the heater V2 which acts to open switch S2 and hence de-energize the heater V1. Consequently the switch S1 is opened, heater V2 de-energized, and S2 closed, and the sequence of events is repeated. Feeding bottles, tea and coffee braziers may be so controlled.
Patent GB-119723-A (GB)
Title: Improvements in Gas Producers.
IPC: C10J3/08
Filed: 1917-10-23
Abstract: 119,723. Glover, S., West, J., and West's Gas Improvement Co. Oct. 23, 1917. Fuel-supports. - A rotary inverted truncated cone d, having an internal helical rib e, is provided at the base of a gas-producer. The edge of the rib may be corrugated, and its upper end may form a cutting edge or point. Beneath the cone is a plate over which works a sweeping arm j. By the rotation of the cone, ashes are withdrawn and discharged. The connexion between the cone d and the body of the producer is made by a liquid seal i, above which steam or other vapour or gas may be supplied through pipes j. Gas is withdrawn from the producers through ports b leading to an annular chamber c.
Patent GB-456909-A (GB)
Title: Improvements relating to block signalling systems for railways and the like
IPC: B61L23/12
Filed: 1935-05-28
Abstract: 456,909. Railway signalling instruments. ROBERTS, W. S., Newby, Ruff Lane, Ormskirk, Lancashire, BURTON, J. H., Pine House, Signal Works Road, Fazakerley, Liverpool, and RAILWAY SIGNAL CO., Ltd., 40, Broadway, Westminster. May 28, 1935, No. 15499. [Class 105] Alternating currents of different frequencies are used singly or in combination to transmit the different block signal indications. Other frequencies may be transmitted for lock-andblock working. Upper and lower indicators on each instrument serve for the up and down lines. For the passage of an up train from A to B the signalman at A requests acceptance by a bell signal whereupon the signalman at B sets his commutator 11B to the " line clear" position 13B and depresses his plunger 15B to close contacts 18B. This action applies a battery 28B to a vibrating relay 92B which has a weighted spring 20 to give a predetermined frequency and the spring of which alternately applies direct current to the opposite halves 24, 25 of a primary winding 26 thereby to induce current of the predetermined frequency in a secondary winding 27 which feeds the line wire 2 over the depressed plunger contacts 19B. At the instrument 1A this current passes by the plunger contacts 16A to selector devices S1A, S2A, S3A, but only the device S2A responds to the particular frequency. The selector devices each consist of a weighted spring 30 acted upon by electromagnets 31 and thus only for the proper frequency current will the movement of armature 29 be sufficient to close contacts 32, 33. The response of the device S2A rings the bell 34A and effects the energization of the winding 6A whereby the " line clear " block signal is given on the upper indicator 3A. At the accepting station B the upper indicator 3B shows the particular block signal transmitted therefrom, for instance by the intermediary of a winding 9B energized at the same time as the vibrating generator relay G2B ; alternatively, this indicator 3B may be actuated mechanically from the commutator 11B. The other block signals are transmitted by different frequency currents and indicated in a similar manner, those for the down line trains from B to A being shown on the lower indicators 4A, 4B and the particular frequency currents being transmitted from the station A which is the accepting station for the down line traffic. The bell signals are given by the plungers 15A, 15B but without changing the position of the commutators 11A, 11B. Such bell signals are given from A when the train enters the section at A, the operator at B then effecting the change over of the instrument indications to " train on line." When the train leaves the section at B the operator at B effects the change over of the instrument indications to " line closed."
Patent GB-420375-A (GB)
Title: Improvements in or relating to binding posts for loose leaf binders and the like
IPC: B42F13/00
Filed: 1933-05-30
Abstract: 420,375. Loose - leaf &c. binders. ROBINSON, G. P., 143, Farringdon Road, Clerkenwell, London. May 30, 1933, No. 15578. [Classes 16 and 146 (i)] A binding-post for a loose-leaf binder or the like comprises two parts, one of which is tubular and adapted to receive the other part and provided with one or more slots or holes, the other part being provided with a spring - pressed projection which is depressed inside the tubular part until it engages in one of the slots, thus locking the parts together in a permanent and non-releasable manner; or the post may comprise three parts, one or two of which are tubular and adapted to receive the other parts or part. In the two-part construction shown in Fig. 1, a springy metal strip 21 is gripped in the inner tubular member 16 by a plug, and is bent back on itself at 22 and then outwards to form a finger 18 projecting through a slot 20 in the member 16. The finger 18 is adapted to engage with the V-shaped slots 13 arranged as enlargements of a longitudinal slot 12 in the outer tubular member 10, and is directed slightly upward so that, while it will pass out of the slots in a downward direction 4, it cannot be disengaged in an upward direction. The slots 13 may be arranged on the other side of the member 10 to the slot 12, and may be circular or any other convenient shape. In the modification shown in Fig. 5, the slot 12 is absent and the finger 18 engages small transverse slots 26 in the member 10. In this case the member 10<1> is slotted at both ends and may be engaged at both ends by the exactly similar members 16, 16<1> mounted on the clamping-bar 17 and base member. 11. Members 101 of different lengths may be used to accommodate varying numbers of papers. One or both of the members 16, 161 may exchange its functions with the member 10<1>, and in that case would be arranged externally. Two spring fingers and two rows of slots may be provided and the posts may have other than circular cross-sections. The members 10 may be used initially with temporary binding means. Specification 383,460 is referred to.
Patent GB-156341-A (GB)
Abstract: 156,341. Alley, S. E., and Thomson, A. Oct. 13, 1919. Differential gearing; crank shafts.-A crankshaft having two cranks at 90‹ to each other is combined with differential gearing comprising differential shafts G, H passing through the hollow crank-shaft E, F and carrying toothed wheels S, T gearing through gaps in the crank-pins A, B with pinions V on spindles W passing through the crank-pins. The two spindles W are geared together by toothed wheels X, Y. The crank-pins are connected by a web N, and balance weights O, P are applied to the crank webs C, D.
Patent GB-713848-A (GB)
Title: Improvements relating to tool holders for screw thread cutting in lathes and like machines
IPC: B23B21/00
Filed: 1951-07-02
Abstract: 713,848. Lathe details. BISHOP, F. R., and HALSE, R. B. Oct. 1, 1952 [July 2, 1951], No. 15636/51. Class 83 (3) A tool-holder for cutting screw threads, of the type in which the tool is withdrawn by a spring after a predetermined traverse, comprises a tool bit 5 carried at the end of a rectangular bar 3 slidable in a body part 1 to be clamped in the tool rest of a lathe &c. The bar and body are recessed to take a compression spring 8, Fig. 2, which tends to withdraw the tool from the work. A hand lever 15, Fig. 1, is shaped at one end 17 to engage the end of the tool bar so that it may be moved outwardly into cutting position. A spring-pressed plunger 10, Fig. 2, engages a hole 13 in the bar to retain the tool in the cutting position and automatic release of the tool is obtained after a predetermined traverse by attaching a line or chain from a fixed part of the machine to the end 10a of the plunger.
Patent GB-772299-A (GB)
Title: Improved method of, and apparatus for, manufacturing strain-gauges
Inventor: FELCE DOUGLAS EDWIN
IPC: H01C17/04
Filed: 1954-05-27
Abstract: 772,299. Resistance strain gauges. ARMSTRONG SIDDELEY MOTORS, Ltd. May 25, 1955 [May 27, 1954], No. 15661/54. Class 40 (1). [Also in Group XXII] A method of making a strain-gauge includes engaging, in a series of equally-axially-spaced positions, a lightly-tensioned straight length of wire, drawing the alternate and intermediate engagement points separately, in a desired sequence, in opposite lateral directions for applying a zig-zag configuration to the wire, and adhesively applying a wafer to the wire for maintaining the applied configuration. Wire 95 to form the strain-gauge passes from a bobbin 86 in a loop tensioned by a weight 97 over a guide bar 91, under a guide bar 83, between guide posts 81 and across hooked needles 21, when the latter are intercalated over a horizontal table 30, and the leading end of the wire is clamped in a channel 66 by a block 67. A strip 34 of absorbent paper is nipped under the needles 21 by the table 30 which is raised by a cam 35 on a shaft 39 rocked by a handle 47. The hooked needles are then manually moved apart in succession from the needle 21a to the needle 21j to form the wire into a sinuous grid. An adhesive soluble in acetone is then applied along lines 100, Fig. 7, and allowed to set to secure the grid to the strip 34. The ends of the wire are then severed at 95a, 95b, the needles 21 moved in to release the grid and the table 30 raised to remove grid from the hooks of the needles. Lead wires 101, Fig. 8, are then adhered to the ends of the strip 34 and the ends of the grid welded thereto at 102. The straingauge may then be applied to a test-piece, e.g. a gas-turbine blade which operates at a high temperature. The gauge is applied wire side down to a layer of heat-resistant insulating cement applied to the test piece, the strip 34 removed by a suitable solvent, and the grid and leads coated with the cement which is caused to adhere to the first layer.
Patent GB-850908-A (GB)
Title: Gas supply and distribution apparatus
IPC: B23K7/06
Filed: 1959-05-07
Abstract: 850,908. Gas burners. UNION CARBIDE CORPORATION. May 7, 1959 [May 8, 1958], No. 15677/59. Class 75(1). [Also in Groups XXII and XXIX] A burner for thermochemically treating a metal slab A comprisespiston tubes 12, 13 supplied with fuel gas and oxygen and mounted in cylinders 23, 23a in a valve block 14 adapted to be moved vertically so that the cylinders slide over the piston tubes the cylinders having a plurality of spaced ports 37 communicating with two rows of fuel gas discharge orifices 15 and an oxygen discharge slot 10 in the valve block 14. By raising the valve block 14 a greater number of ports 37 are brought into use so that a metal slab of greater depth can be treated. The lower ends of the piston tubes 12, 13 are secured to a bracket 19 fastened to a horizontally movable member 30 and their upper ends are provided with two sealing rings 24, 25. The valve block 14 has a slide plate 28 slidably mounted in a vertical guide in the member 30. The valve block may be moved by an air motor. A valve block may be mounted on each side or above and below the metal slab to be treated. The valve block may have only one piston tube. The lower exposed ends of the piston tubes may be protected by expandable boots. Scrapers may be mounted in contact with the piston tubes.