baber/WOPTO huggingface dataset:
Patent GB-504319-A (GB)
Title: Improvements in haulage apparatus for trains of trucks or the like
IPC: B61J3/04
Filed: 1938-02-19
Abstract: 504,319. Rope railways; railway systems. STRUNK, F. G. Feb. 19, 1938, No. 5312. [Class 104 (ii)] Apparatus for propelling trains of trucks or the like on rails, comprises a pair of parallel truck-moving members which carry driver-members adapted to engage the trucks and are reciprocated in opposite directions by a continuously rotating motor operating through crank mechanism. In the embodiment shown in Figs. 1 and 2, the truck axles are engaged by drivers 13, 14 mounted on slides 15, 16 which are reciprocated on supporting rollers 24 by connecting rods 19, 20 secured to crank arms 18a, 18b on a shaft 18 driven through reduction gearing 21 and a friction clutch 27 by a motor 17. The drivers are pivotally mounted so as to pass under the truck axles during the return movement of the slides, and have an idle movement before engaging the axles on their forward stroke to enable them to swing up to an operative position. A looking device 27<1> prevents the trucks running backwards when the clutch 27 is disengaged. In a further embodiment, Fig. 4, only two drivers 13, 14 are provided, and these are secured to the runs of an endless rope 32 which is driven. by a pulley 30 rotated by a pinion 29 engaging racks 11<1>, 12<1> secured to the connecting rods 20<1>, 19<1>.
Patent GB-1078903-A (GB)
Title: A method of an apparatus for enamelling the interior of hollow vessels
IPC: C23D5/00
Filed: 1966-02-07
Abstract: <PICT:1078903/C1/1> To enamel the interior of a hollow vessel 5, the vessel is evacuated, as through pump 10, the enamel slip is drawn up thereby from a storage vessel 1, maintained therein, for example until the slip reaches a float valve 7, and then the slip allowed to flow out of the vessel 5 assisted by an adjustable pressure from a pressure pump 13.  Initially the pump 13 works through the valve 12 and air vessel 14 and after a variable time, the pump works through valve 17, air vessel 16 and a reducing valve 15 which allows adjustment of the discharge rate of the slip.
Patent GB-452372-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J19/82
Filed: 1935-02-19
Abstract: 452,372. Thermionic valves. KRONSTEIN, S., 11, Nestorstrasse, Halensee, Berlin. Feb. 19, 1935, No. 5351. Drawings to Specification. [Class 39 (i)] An auxiliary grid between the cathode and the control grid is maintained at a positive potential of one to two volts, for example 1À2 volts, and is so formed that it acts as an accelerating electrode at low anode potentials and as a decelerating electrode at high anode potentials. The grid may comprise a few turns of wire, or two or more wires parallel to the cathode or a helix having the same number of turns as the control grid. It is stated that the anode current-grid potential characteristic is a straight line. Specification 317,793, [Class 39 (i)], is referred to.
Patent GB-1174579-A (GB)
Title: Improvements in or relating to Tapchanging Circuit Arrangements
Inventor: WILKINS JOHN THOMAS
IPC: H01H9/00
Filed: 1966-02-08
Abstract: 1,174,579. Transformers. ENGLISH ELECTRIC CO. Ltd. 8 Feb., 1967 [8 Feb., 1966], No. 5438/66. Heading HIT. A tap-changing circuit for transformers or inductors comprises two selector contacts 18, 19 for separately making connection to each of the tapping points of winding 8, there being a vacuum switch 21 directly connected between contact 19 and common point 22, and an impedance in the diverter circuit between contact 18 and common point 22, contact 18 always connecting a given tap before contact 19 during tap changing in both directions. For example, initially both contacts may engage tap 13 as shown. Changing to tap 14 is initiated by moving contact 18 to tap 14, after which vacuum switch 21 is operated to break the main circuit the load current then passing through the impedance 23. Contact 19 is then moved to tap 14 and the vacuum switch 21 operated so that the load current can pass directly to common point 22. This procedure is repeated for tap changing in either direction. Contact 19 is never required to make or break current and may be a simple device. Contact 18 is only required to make current and may be small, but a vacuum switch can, if necessary, be connected in series with impedance 23. This switch will have to open before and close after contact 18 engages a tap. Separate main selector and diverter selector switches may be provided for each tapping. The vacuum switches may be disposed within the transformer tank or be in a special enclosure. In a further arrangement (Fig. 2, not shown) the taps are arranged on the circumference of a circle and the contacts 18, 19, impedance 23 and the vacuum switches are carried on radial arms pivoted at one of their ends about a common pivot (25). This arrangement may be mounted in the transformer tank.
Patent GB-1245521-A (GB)
Title: Gas water heater
IPC: F23N1/08
Filed: 1969-01-31
Abstract: 1,245,521. Valves. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 31 Jan., 1969 [2 Feb., 1968 (2); 24 Sept., 1968], No. 5483/69. Heading F2V. In a gas water heater of the kind in which the gas supply is controlled by applying to opposite sides of a diaphragm the upstream and throat pressures in a Venturi, or other constriction, in the water supply line to the heat exchanger; the effective cross-sectional area of the throat is controlled by a member movable by the hydrodynamic effect of the water flowing in the supply line. Heat exchanger 49 (Fig. 1) is fed with water from an inlet 22 via governor 29, high pressure chamber 21, and Venturi 34. Low pressure chamber 20 is fed with the throat pressure via conduit 35. Gas heater control valve 45 is connected by rod 47 to diaphragm 16 which separates chambers 20, 21 and which carries a throttling member 36 adapted to vary the throat cross-section in response to movement of the diaphragm. In the modification shown in Fig. 4 the Venturi throat 52 is throttled by a member 56 movable against the action of a spring 59 by the water pressure acting on flange 58. In a further modification (Fig. 5, not shown) the tension in spring 59 is adjustable by means of a manually operable screw (61). Another modification (Fig. 6) shows a throttling member 70 provided with an operating head 71 which co-operates with a seat 69 to cut off the supply to water outlet 23 under excess pressure conditions.
Patent GB-576719-A (GB)
Title: Improvements in generators of vibrating currents
IPC: H03B5/30
Filed: 1942-04-24
Abstract: 576,719. Valve generating circuits. COMPAGNIE POUR LA FABRICATION DES COMPTEURS & MATERIEL D'USINES A GAZ. April 24, 1942, No. 5531. Convention date, Feb. 11, 1941. Drawings to Specification. [Class 40 (v)] In an oscillator controlled by a vibrating reed, the coil associated with the reed is connected in one arm of a Wheatstone bridge network whose diagonals are connected respectively to the input and output circuits of a valve amplifier. The bridge is balanced when the reed is held stationary. Vibration of the reed sets up a back-e.m.f. which unbalances the bridge, permitting transfer of power from the output to input circuits of the amplifier so permitting oscillations to build up. Voltage limiting devices can be inserted, such as A.V.C. or a gas discharge tube across the diagonal connected to the amplifier output ; or use of the back e.m.f. of similar vibrating reed included in this diagonal can be made. If the latter reed is tuned to a slightly different frequency (e.g. smaller), then increase in the amplitude of the reed in the bridge arm will cause its frequency to drop and eventually come into resonance with the reed in the diagonal, whose back-e.m.f. will then reduce the voltage fed to the bridge thereby reducing the amplitude of the reed in the bridge arm and so on. Hence the frequency of the output can be made to vary periodically over a small range. More than one reed can be introduced in one or more of the arms to produce a number of frequencies and corresponding reeds inserted in the diagonal to limit the e.m.f. as described above.
Patent GB-1033211-A (GB)
Title: Co-ordinate drilling machine
Inventor: HARMAN JULIUS
IPC: B23B39/04
Filed: 1963-02-12
Abstract: 1,033,211. Drilling-machines. BIRMING- HAM SMALL ARMS CO. Ltd. March 24, 1964 [Feb. 12, 1963], No. 5600/63. Heading B3C. [Also in Division F2] A co-ordinate drilling machine comprises a horizontally slidable work-table 15 and a vertically slidable beam 18 and a tool head 20 slidable on the beam and having tool spindles 1-3, and means for automatically moving the tool head or table, or both. Beam 18 is moved vertically by rams 19; head 20 is moved along the beam by an electric motor 21; the spindles are rotated by a three-speed motor 22; and fed by a second motor 23, motor 22 driving through a three-speed gear-box. The high speed is through a gear 24, Fig. 4 (not shown), an electromagnetic clutch 26, gears 27, 31, 34, a second electromagnetic clutch 36, gears 35, 38, to spindles 2. The intermediate speed is through gears 24, 25, 30, an electromagnetic clutch 33, gears 31, 34, clutch 36 and gears 35, 38. The low speed is through gears 24, 25, 30, 32, 28, clutch 29, gears 27, 31, 34, clutch 36 and gears 35, 38. Spindles 1 and 3 are driven through shafts 4 and 6, Fig. 5 (not shown), which are identical with shaft 5. The spindle feed drive provides two ratios. The rapid feed train is from motor 23 through gears 43, 44, Fig. 7 (not shown), clutches 45, 52 and gears 53, 54. The slow feed train is through gears 42, 46, 49, 50, 47, 48, 51, clutch 52 and gears 53, 54. Shafts 4a and 6a are identical to shaft 5a and transmit the feed drive to spindles 1 and 3 through gears 56, Fig. 4 (not shown), clutch 57, and gear pairs 58, 59. Gear 59 is carried on an axially fixed sleeve 60 having an external screwthread 61. A non-rotating quill 62 carries a nut 63 for co-operating with thread 61, so that as sleeve 60 rotates, the quill is moved axially to feed tool holder 66. The clutches can be controlled by a tape, as also can the feeds and speeds.
Patent GB-1123163-A (GB)
Title: Housing for an electric lamp
Inventor: HEATH CLARENCE WILLANS
IPC: F25D27/00
Filed: 1966-02-09
Abstract: 1,123,163. Lampholders. CARR FASTENER CO. Ltd. 24 Nov., 1966 [9 Feb., 1966], No. 5676/66. Heading H2E. [Also in Division F4] A holder 5 for a screw-based lamp has a forwardly-projecting tubular insulating shield 9 snap-fitted on its forward end, the holder 5 extending integrally from the closed end of an insulating cover 1 which has apertured lugs 2 for mounting on a support. A transparent cover part 11, which also has a mounting lug 15, fits in a groove 13 in the forward end of the cover 1. The lampholder contacts comprise a threaded socket 8, which is formed in a contact plate 6, and a resilient base contact 10, these being respectively retained on the forward end of the holder 5 and on the cover 1 by engagement of lugs with apertures in the contacts.
Patent GB-848622-A (GB)
Title: New sulphonamides
IPC: C07D231/42
Filed: 1959-02-18
Abstract: The invention comprises 3-(N1-acyl-sulphanilamids)-2-phenyl-pyrazoles unsubstituted in the 4- and 5- positions and their preparation by acylating a p-amino benzenesulphonamido-2-phenyl-pyrazole.  The p-substituent may also be a group convertible to amino, e.g. by hydrolysis or reduction which is subsequently so converted.  The preferred product is 3-(N1-acetyl-sulphanilamido)-2-phenyl pyrazole. The compounds are used as chemotherapeutic agents, (see Group VI).ALSO:Pharmaceutical preparations comprise 3-(N1-acyl-sulphanilamide)-2-phenyl-pyrazoles unsubstituted in the 4- and 5-positions (see Group IV (b)), in association with pharmaceutical carriers such as water, gelatine, lactose, starches, colloidal silicic acid, magnesium stearate, talc, vegetable oils, benzyl alcohols, gums, polyalkylene glycols, petroleum jelly or cholesterol.  The preparations may take the form of suspensions, emulsions, tablets, dragees, salves or creams.
Patent GB-286666-A (GB)
Title: Device for producing electric discharges of predetermined duration and constant intensity
IPC: A61N1/36
Filed: 1928-02-24
Abstract: 286,666. Brillouin, L. N. March 8, 1927, [Convention date]. Producing transient current impulses. -A constant current is applied for a predetermined time, for medical diagnosis for example, by an arrangement comprising a thermionic valve the grid potential of which is controlled by an auxiliary circuit Fig. 1 comprising two condensers c<1>, c<2> each shunted by a resistance (r<1>, r'), a battery 1 of negligable resistance and a switch 2; two inductances L<1>, L<2> each associated with a series resistance (r<1>, r<2>) may be employed as an alternative Fig. 5. The grid 6 of the first valve in the arrangement shown in Fig. 7 is given a negative potential e, Fig. 8, from battery 5 which on closing switch 2 is immediately increased to a value determined by the condenser ratio and then falls exponentially to a value, Fig. 9, dependent on the resistance ratio. The resultant variation in potential drop ri in the plate circuit resistance 8, is applied to the grid 10 of a second valve in series with a control-battery 14, and the grid battery voltages are adjusted to produce an impulse of constant current i<1> as shown in Fig. 11 each time the switch 2 is closed. A modification with resistance and capacity coupling of the valves is also described. An arrangement employing one valve is shown in Fig. 13. In this the point 14 on a battery 1 is selected to afford a voltage V<1>, Fig. 14, such that the valve will pass a saturation current directly the switch 2 is closed which current is maintained for a period, Fig. 15, during the exponential fall of grid voltage, followed by a short period in which the current falls to zero, Figs. 14, 15. The value of the output current and the period of application may be adjusted in all the arrangements described.
Patent GB-634110-A (GB)
Title: Improvements in and relating to photographic printing employing image masks
IPC: G03F3/06
Filed: 1947-03-03
Abstract: 634,110. Photographic printing using image masks. KODAK, Ltd. March 3, 1947, No. 5951. Convention date, March 1, 1946. Drawings to Specification. [Class 98 (ii)] An unsharp mask for use in register with a photographic transparency of an original when making reproductions therefrom is made by printing the transparency on to a light-sensitive layer while there is between the two a translucent layer having a thickness between 0.00005 and 0.001 inches and a diffusivity having a contact resolving power less than ten lines per millimetre and giving a brightness at 45 degrees greater than 2 per cent of the brightness at normal angle of view, and processing the exposed layer to produce the masking image therein. The mask is then placed in register with the transparency and a print produced therefrom by contact or projection printing. The translucent layer may be secured to the transparency during production of the mask, or may be coated on or otherwise attached to the upper surface of the light-sensitive layer. In the latter case, the translucent layer may be stripped off or rendered transparent after printing of the mask. A thin transparent layer may be provided between the translucent and light-sensitive layers. The light-sensitive layer may be overcoated with a very slow translucent silver halide emulsion to form the translucent layer, this emulsion layer being too slow to be exposed during printing of the mask and being rendered transparent during fixing. The translucent layer may also be produced by developing " Kodalith " (Registered Trade Mark) stripping film, with or without a slight flash exposure, and treating in an aqueous bath of potassium bromide and mercuric chloride. It may be attached to the transparency by water or cement. The mask may be used sharply or unsharply, and in colour photography may be used in printing from a transparency different from that from which it was made. Specifications 529,041, 579,239, 592,270, 592,296 and 599,392 are referred to.
Patent GB-140833-A (GB)
Title: Improvements in and relating to the catalytic oxidation of ammonia
IPC: C01B21/26
Filed: 1918-04-08
Abstract: 140,833. Taliani, M. April 8, 1918. Catalytic apparatus; nitrogen oxides, catalytic production of by combustion of ammonia.-The catalytic oxidation of ammonia is effected by means of grains or fragments of porcelain or the like covered with metallic platinum, supported upon a water-cooled grate. The apparatus comprises two conical parts 5, 6 connected by a cylindrical part 7 containing the granular catalyst 3 on its water-cooled grate 2. The gases on their way to the lower chamber 6 pass through a device such as that shown at 1 to give them a whirling motion. A valve 5<1> is provided for regulating the pressure and a pyrometer 4 for indicating the temperature. The catalyst is heated to start the reaction, for instance by introducing a flame into the lower chamber 6.
Patent GB-1490696-A (GB)
Title: Electromagnetic relays
IPC: H01H71/26
Filed: 1975-01-15
Abstract: 1490696 Electromagnetic relays PLESSEY CO Ltd 15 Jan 1975 [13 Nov 1973 8 Feb 1974] 52607/73 and 05989/74 Heading H1N An electromagnetic relay which may be used for vehicle motor control has an energizing winding 1 and an opposing window 2 which is connected in series with contacts 3 such that when the contacts are closed on energization of the energizing winding and high (e.g. short circuit) current flows through the contacts, the current in the opposing winding is such that the effect of the energizing winding is cancelled and the contacts open to deenergize the opposing winding so that the contacts reclose and continue opening and closing for as long as the energizing winding is energized and the short circuit persists. In Fig. 2 (not shown) the relay has a single turn opposing winding and a pivoted armature and in Fig. 3 (not shown) the relay has a recilinearly movable armature controlled by wound coils and arranged for higher frequency operation.
Patent GB-608544-A (GB)
Title: Basic refractory products, in particular basic refractory linings for furnaces and parts of furnaces, and process for obtaining same
IPC: C04B35/03
Filed: 1946-02-26
Abstract: Basic refractory furnace linings, bricks, shells, or the like are formed from a mixture of finely-ground calcined magnesia and lime, in the free or combined state, in amount up to 80 per cent of the magnesia.  The magnesia is ground to a maximum. diameter of about 4 mm.  Iron or steel wire reinforcements may be incorporated, in amount less than 20 per cent.  In preparing a lining, the mixture is tamped into place cold, preferably in a cold furnace, and is converted by the furnace heat to a monolithic surface.
Patent GB-793195-A (GB)
Title: Improvements in or relating to spare wheel carriers for motor vehicles
Inventor: WILLIAMS CYRIL LEWIS
IPC: B62D43/04
Filed: 1955-03-01
Abstract: 793,195. Spare-wheel carriers. FORD MOTOR CO., Ltd. Feb. 9, 1956 [March 1, 1955], No. 6062/55. Class 136(1) In a spare-wheel carrier for motor vehicles the spare wheel 3 is raised and lowered by means of a cable 13 passing over a pulley 5 mounted on a fixed part of the vehicle frame, and a second pulley 10 is arranged for displacement with respect to the vehicle frame, the end of the cable 13 being fixed in the vehicle frame. A support plate 4 is. secured to a frame member 1 intermediate two brackets 2. The plate is slotted to receive the pulley 5 the shaft 6 of which is secured to the plate 4. A cranked handle 8 is in threaded engagement with the sleeve 7. On the end of the handle inside the frame member 1 there is mounted a supporting bracket 9 for the pulley 10. This pulley is prevented from rotating by a bar 12 which extends from the central boss of the pulley and hooks over a bar 11 secured to the frame 1. Holes 1a, 1b are provided in the member 1. A cable 13 is anchored in the hole 1a extends round the pulley 10, comes back through the hole 1b, over the pulley 5 and then extends down to an end 13b. The spare wheel 3 is supported on a beam member 14 which is threaded on the end 13b of the cable and is supported horizontally in a balanced position by a nut 13c. In operation the wheel 3 is placed underneath the brackets 2. The handle 8 is then turned in the direction required to draw the pulley 10 towards the frame member 1, the hooked bar 12 sliding along the bar 11. This lowers the beam 14 which is inserted in the central hole in the wheel 3. studs 14a on the beam 14 beings passed through diametrically opposite bolt holes in the wheel 3. Turning the handle 8 in the opposite direction pushes the pulley 10 away from the frame member 1 and thus draws up the cable 13 and with it, the beam 14 and the wheel 3. The studs 14a can then be passed through apertures 2b in the brackets 2 by turning the wheel by hand until the beam 14 is parallel to the frame member. After further turning of the handle 8 the wheel is held rigidly in place by screwing nuts 15 on to the studs 14a.
Patent GB-926870-A (GB)
Title: Process for rendering leathers or skins water-resistant
IPC: C14C9/00
Filed: 1961-02-20
Abstract: Leather or skin is made water-resistant by impregnating it with a solution, in an organic solvent, of partly esterified or partly amidated citric acid containing in the molecule at least one free carboxyl group and an unsaturated hydrocarbon residue of high molecular weight.  Suitable citric acid derivatives are: monooleyl citrate, dioleyl citrate, citric acid monooleylamide and the monoundecenyl ether of monooleyl citrate.  The solution may also contain: an alcoholate of a polyvalent metal (e.g. aluminium, magnesium, titanium or zirconium) and an acid derivative of high molecular weight of phosphoric acid; a condensation product formed from these two substances; a silicone oil; a hard natural or p synthetic wax; or a small amount of mineral oil.  The Specification also describes by way of comparison the treatment of leather with a solution containing a condensation product of aluminium isopropylate and dodecylphosphoric acid, montan wax and silicone oil but no citric acid derivative.  Specifications 826,025 and 876,653 are referred to.