baber/WOPTO huggingface dataset:
Patent GB-820870-A (GB)
Title: Improvements connected with the control of oil burners
IPC: F23N1/00
Filed: 1956-10-11
Abstract: 820,870. Oil burners. RICHMOND. J. W. S. Oct. 11, 1957 [Oct. 11, 1956], No. 31027/56. Class 75(1) [Also in Group XXIX] In apparatus for burning waste oil, the valve controlling the supply of oil to the burner is intermittently opened to an increased extent by means of a solenoid 17 or similar means actuated at intervals by a time switch or switches, to cause ejection of accumulated particles of dirt. The valve spindle carries a crank .arm 12, one end of which is connected by a spring 13 to the movable core 14 of the solenoid and the other to a spring 19 anchored to the framework of the apparatus, an adjustable stop 20 being provided for controlling the extent of closing of the valve. Two time switches may be connected in parallel in the circuit of the solenoid, producing, respectively, a full opening of the valve for five seconds every three minutes and for thirty seconds every twenty minutes.
Patent GB-673135-A (GB)
Title: Improvements in and relating to method of and apparatus for making coolers for liquids
IPC: A01J9/04
Filed: 1949-12-05
Abstract: 673,135. Casting composite articles. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and MACNAMARA, H. J. Jan. 11, 1951 [Dec. 5, 1949], No. 31123/49. Class 83 (i). [Also in Group XIII] The spaced corrugated plates of a liquid cooler element of the kind described in Specifications 605,615 and 675,601, [both in Group XIII], are joined together along the corrugated edges by immersing the edges 16 of the assembled spaced plates 13 in a solder bath conforming to the shape of the edges to form a solder plug 18 between the plates and reinforcing solder flanges 19 on the exterior surfaces. The solder bath is formed by a sinuous groove 7 in the upper surface of a plate 6 supported by frame members 2, 3 and 5. The underside of the plate is first heated by a gas burner 8, the edges of the plates 13 are immersed in the molten solder and then the gas is turned off and the plate 6 cooled by water-jets from pipes 11 to solidify the solder.
Patent GB-287430-A (GB)
Title: Improvements in and relating to piano and like hinges
IPC: E05D3/02
Filed: 1927-11-19
Abstract: 287,430. Cripps, C. T. Nov. 19, 1927. Barrel and cylindrical hinges.-In piano hinges comprising a long hinge plate 1 connected by a hinge pin to a number of short hinge plates 5 spaced apart the barrel socket 2 of the long hinge plate is split at 3 at intervals to provide a certain amount of give and thus avoid binding. The sockets of the smaller barrels 4 may also be split. The hinge members may be formed by folding a strip of metal, as shown in Fig. 5.
Patent GB-367316-A (GB)
Title: Improvements in and relating to automatic controlling devices for gas-heated liquid heaters
IPC: C07C51/02
Filed: 1931-11-10
Abstract: 367,316. Gas-heated liquid heaters.' JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. Nov. 10, 1931, No. 31166. Convention date, Nov. 12, 1930. [Class 135.] In an automatic control device for gas-heated water-heaters and the like, a Venturi tube is displaceably mounted in a casing in the water supply pipe and under excessive pressures, moves against the action of a spring to open a byepass for the liquid. A valve 15 controlling the gas supply to a burner 16 is actuated by a piston or diaphragm 14 subject to water pressure admitted through conduits 8, 12 connected respectively to the water inlet pipe 1, and the throat of a movable Venturi pipe 4 arranged in the casing 3. The Venturi 4 which is guided by radial wings and prevented from turning by strips 21, has its displacement limited by a stop 22. As soon as the pressure difference between the ends of the Venturi 4 is sufficient to overcome the action of the spring 5, the Venturi 4 moves to open the byepass valve 6, 7 and permit excess flow to pass between the outside of the Venturi 4 and the casing 3. In a modification, the passage of quantities of water which the burner 16 is inadequate to heat and damage to the diaphragm 14 are avoided by providing the Venturi with additional closures adapted to stop the flow through the byepass 6, 7 and to disconnect the pipe 12.
Patent GB-1527210-A (GB)
Title: Spoilers for mounting on the cab roofs of commercial vehicles
IPC: B62D35/00
Filed: 1976-11-30
Abstract: 1527210 Wind deflectors FORD MOTOR CO Ltd 30 Nov 1976 31231/77 Heading B7J In a cab roof spoiler assembly a membrane 32, Fig. 3, is bonded to hinged rigid rubber base and top members 34, (36) and is inflated to form a deflecting spoiler with a curved central rib 40 flanked by sloping faces 42 and a top surface 44 with an upstanding concave central portion 46.
Patent GB-437146-A (GB)
Title: Improved process for the manufacture of products of cement and concrete
IPC: C04B28/04
Filed: 1934-11-01
Abstract: Steam-hardened concrete products are made with a binder of Portland cement and finely dispersed clay.  The treatment with steam under pressure causes the clay to react with the lime liberated in the cement to form calcium hydrosilicate.  In an example 60 parts of cement are mixed with 40 parts of clay containing 50,2 per cent of silicic acid.  The clay may, after being dried and powdered, be added to the dry cement, to the other dry ingredients or to the dry mixture, or it may be dispersed in the mixing water.  Accelerators such as soluble metallic salts, especially chlorides and salts of calcium sodium and magnesium may be added.  Sugar also acts as an accelerator and renders the mixture more plastic.  Other additions such as glue or gelatine improve the imperviousness to water.  The invention is applicable to the production of asbestos-cement products, porous concrete, wood (sawdust) filled concrete, slag and pumice slabs, &c.
Patent GB-1369762-A (GB)
Title: Sound reproducer
IPC: G11B7/0025
Filed: 1972-07-19
Abstract: 1369762 Playback of optical sound records GAKKEN CO Ltd 19 July 1972 31367/73 Divided out of 1369761 Heading G5R A photo-electric playback head 50 is driven along a radial slot 74 in a rotating turntable 33 so as to scan a spiral optical sound track 21 on the lower surface of a stationary sheet record 20. As shown, the head 50 is mounted on a carriage 90 which is driven along rails 80 by a leadscrew 100 when rotation of the turntable 33 causes rotation of a helical gear 104 through its engagement with a stationary helical gear 103 secured to the central bearing 71 of the turntable. At the end of its travel the carriage 90 is disengaged from the leadscrew 100 by a cam 106, which also deflects a spring arm 96 on the carriage into the path of a forked-ended rod 122 which is reciprocated through a chain drive 113, 112, 114 from a stationary sprocket wheel 110 during rotation of the turntable, so that the next stroke of the rod 122 returns the head carriage 90 to its starting position.
Patent GB-1167676-A (GB)
Title: Transfer Mechanism for a Business Machine
IPC: G06C15/00
Filed: 1968-07-01
Abstract: 1,167,676. Mechanical calculating apparatus; transfer mechanism. NATIONAL CASH REGISTER CO. 1 July, 1968 [24 July, 1967], No. 31377/68. Headings G4B and G4D. In a business machine with differentially-driven racks 51 which mesh when driven in the one direction with selected totalizer pinions 19, the passage of any pinion through transfer position causes a wide tooth 21 to rock an associated trip pawl 26 in a clockwise direction so as to be held by an associated latch arm 32. During this part of the machine cycle a high point 61 on a cam 55 moves a pitman 50 to the left, carrying the trip pawl 26, latch arm 32 and an associated transfer arm 36 in the same direction. If a transfer has been initiated a hook 44 on arm 36 has engaged an extension 45 of the next higher order transfer segment 46 and this is moved also to add one to the higher denomination. Movement of the pitman 50 also carries transfer restoring slide 51 to the left to a first operated position in which an edge 66 contacts a stationary comb 65, after which further movement of the pitman tensions a spring 68. The pitman also rotates transfer restoring arm 72 counter-clockwise so that its tail 75 engages slide 51, so preventing relative movement of the slide 51 relative to the pitman 50 when the pitman is returned to the right by the spring 68 after the high point of the cam 55 has passed. An extension 76 on the pitman 50 at this time prevents movement of latch arm 32 by contacting extension 69. Towards the end of the first half of the cycle a stud 135 associated with the cam 55 rocks arm 56 counter-clockwise so that arm 72 drives slide 51 to the right to its second operated position. Cam surfaces 139 on the lower edge of slide 51 engage all tripped arms 32 to turn trip pawl 26 counter-clockwise positively. Fugitive one. The machine has a crossfooter which can register positive or negative totals. If the highest denomination of the crossfooter passes through zero, an overdraft arm 88 is rocked by a trip pawl 86 or 87, Fig. 10, to its alternative position, and a shaft 90 extending from the highest to the lowest denomination enters a fugitive one. Consequential transfers are then effected by a second high portion 134 of cam 55 shifting pitman 50 to the left again in the second half of the machine cycle.
Patent GB-301020-A (GB)
IPC: C11D17/08
Filed: 1928-10-30
Abstract: 301,020. Henkel et Cie Ges. Nov. 23, 1927, [Convention date]. Soaps, compositions for making.-Liquid soaps, used for example in soap distributors, contain ammonium thiosulphate to prevent gelatinization. Glycerine, disinfectants, and other usual fillers not reacting with the thiosulphate,'may be added. In an example, 500 lb. of cocoanut oil and 65 lb. of olein are saponified in a half-warm condition with 525 lb. of caustic potash lye of 38‹ BÚ., and a warm solution of 250 lb. of ammonium thiosulphate or of 230 lb. of sodium thiosulphate crystals and 120 lb. of ammonium carbonate in 1750 lb. of water is stirred in.
Patent GB-397341-A (GB)
Title: Improvements in and relating to means for rendering dressed yarns more pliable in warp-treating machines
IPC: D02H5/02
Filed: 1932-11-09
Abstract: 397,341. Treating warps. CUSTERS, P. W., 131, Volksgartenstrasse, Gladbach, Munich, Germany. Nov. 9, 1932, No. 31645. Convention date, July 9. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 10, 1933.] [Classes 120 (iii) and 142 (iv).] Hard and stiffly dressed warp yarns are rendered pliable in warp-dressing machines by leading them through a device arranged between the drying-chamber and the winding- beam and comprising one or more angular metal blades c, drawing rollers b, which may be arranged between the drying-chamber and the blades, being used if desired. The guide rollers d may be replaced by blades. The blades c are rotatably adjustable in either direction to vary the path of the yarns according to their stiffness.
Patent GB-451765-A (GB)
Title: Improvements relating to the charging and scavenging of the cylinders of two-stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1934-11-03
Abstract: 451,765. Exhaust systems. KADENACY, M., 120, Rue Lecourbe, Paris. Nov. 3, 1934, No. 31649. [Class 7 (ii)] In a two-stroke engine in which the mass exit of the exhaust gas from the cylinder is used tc induce a fresh charge, and in which the admission of this charge, e.g. through inlet ports 6, does not occur until this mass exit takes place, fresh gas, which may be air only, is introduced into the exhaust duct 7 during the exhaust period. This gas may be compressed in the crankchamber 2, and its admission may be controlled by a valve 11 which opens at about, or just after, bottom dead-centre and closes simultaneously with the exhaust ports. The gas is admitted as close to the cylinder ports as possible, and preferably by a nozzle 10. The gas may be atmospheric air and its introduction, during the depression period in the exhaust duct, may be controlled by a non-return valve comprising light blade springs. It may itself constitute the cylinder charge, the ports 6 being then omitted.
Patent GB-669686-A (GB)
Title: Improvements in or relating to methods of re-magnetizing partly-demagnetized permanent magnets in alternators
IPC: H01F13/00
Filed: 1949-12-09
Abstract: 669,686. Magnetizing. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 9, 1949 [Dec. 13, 1948], No. 31666/49. Class 35. A permanent magnet A.C. generator is remagnetized by charging a condenser 9 through a rectifier 8 from the generator and subsequently discharging it through the generator armature windings 2 by means of a switch 11. The discharge may be done through a synchronized switch or the rotor may be brought to rest in the correct position. In cases of severe demagnetization the condenser voltage may be increased by charging through a transformer. Specification 456,373 is referred to.
Patent GB-391381-A (GB)
Title: Improvements in or relating to synchronizing devices
IPC: H02P5/52
Filed: 1932-11-09
Abstract: 391,381. Motors. LUCA, E. DE, 1, Albemarle Street, London. Nov. 9, 1932, No. 31632. [Class 35.] Rotary machines.-A commutator a varies the distribution of current to the winding e of a motor to be .synchronized with the commutator, and the motor operates synchronously or asynchronously at will, so that it can start when the apparatus associated with the commutator is already in motion. The winding g of rotor f is controlled by a switch j, by which it is short-circuited at k<1> for asynchronous starting or fed with current, at the position k<2>. for synchronous running. The distributer brushes are so set that one pair b<1> covers an angular distance equal to the length of one contact c and the other pair b covers an angular distance equal to the length of two contiguous contacts. The brushes are placed symetrioally at opposite ends of a diameter.
Patent GB-671308-A (GB)
Title: Improvements in or relating to machines for digging potatoes
IPC: A01D17/14
Filed: 1949-12-12
Abstract: 671,308. Potato-diggers. NIELSEN, J. K. Dec. 12, 1949, No. 31842/49. Class 6(iii) In a potato harvester, of the kind wherein roots dug by a share 2 are fed to a rotating conical riddle and thence to a rotating cylindrical riddle 12, 13, 14, he cylindrical riddle rotates on a horizontal axis and includes adjustable internal ledges 19 to which are secured curved rods 20, the sets of rods being overlapping. The cylindrical riddle comprises iron hoops 12 welded to cross-bars 13 mounted between end-rings 14, 15 the front ring 14 being channelled to receive supporing rollers 17. The ledges 19 are pivoted between the rings 14 and 15 and all the ledges are also pivoted at .their rear ends to an inner ring 21; the rotation of which relatively to the ring 15 alters the inclination of all the rows of rods 20 simultaneously. The potatoes-are ejected from the ledges on to a gridded shoot 23. The riddles are driven from the land-wheels 1.
Patent GB-1360104-A (GB)
Title: Function interpolator
IPC: G06G7/30
Filed: 1971-07-07
Abstract: 1360104 Interpolators A NATHAN 6 July 1972 [7 July 1971] 31851/71 Heading G4A A plurality M (# 4) of electrical signals representing samples of a function f(x) are multiplied with respective signals representing similar sampling functions of x and the resulting product signals are summed to produce a signal representing interpolation of the samples, each sampling function comprising a predetermined linear combination of a constant and a plurality k of sinusoidal functions having a linear frequency progression, and having a maximum value at the associated sampling point, k being the highest integer not greater than ¢M. The interpolating circuits described are hybrid, but entirely digital or entirely analogue circuits could be used. In the embodiment shown in Fig. 7 the variable x is split into an integral digital part xd and an analogue part #x taking values between 0 and 1. Function generators 30-33 derive the sampling functions of #x and the multiplication is effected by multiplying digital to analogue converters 34-37 supplied with a digital sample value of f(x) e.g. from a digital computer. To avoid discontinuities in #x during updating of the sample values fj, the signal #x may be replaced by linear saw-tooth signals which assume the values 0 and 1 at alternate sampling points. It is not necessary for the sampling points to be evenly spaced. In a further embodiment Fig. 15 (not shown) the variable is time, and the sampling functions are derived from a master oscillator by suitable processing and phase shifting of its output, the oscillator synchronizing the supply of sample values fj to the multipliers.
Patent GB-263302-A (GB)
Title: Improvements in and relating to slicing machines
IPC: B26D1/143
Filed: 1925-12-21
Abstract: 263,302. Berkel & Parnall's Slicing Machine Manufacturing Co., Ltd., and Thomas, H. Dec. 21, 1925. Cutting slices in succession.-In a disc knife reciprocating table slicing-machine wherein the table is reciprocated independently by hand, the feed abutment is variable both to vary the point in the stroke of the table at which the feed is effected and also to vary the slice thickness. As shown in Fig. 1, the table A is reciprocated over the base D by a handle E which is also used for effecting rapid adjustments of the feed table. The feed table B is actuated by a feed screw F and nut segment G, the screw being rotated intermittently, preferably by a clutch 1 of the kind described in Specification 234,580. The feed stop comprises a roller 9 on an arm 10 carried on a bracket 11 longitudinally slidable on a rod 12 having positioning notches 15 engageable by pins 14. The bracket 11 is locked by an eccentric clamp 16. An arm 2 projecting from the clutch 1 is pivoted to a link 3 having a pin 4 engaging with an arcuate slot 5 in the pivoted trip member 7 which is returned by a spring 25 attached to the bearing of the feed screw. The member 7 has a flange 24 which coacts with the roller 9 so that on the forward movement of the table the roller 9 rides over the flange 24 and, in virtue of the slot 5, moves the trip without moving the clutch 1. After passing the roller the trip is returned by the spring 25 and on the return stroke of the table the trip is moved clockwise and actuates the link 3 and the clutch 1. This is effected at a point in the stroke determined by the longitudinal position of the bracket 11. To vary the slice thickness, the arm 10 is pivotally mounted on the bracket 11 and has a pin engageable with holes 19 on the bracket, or vice-versa. A knob 23 containing a spring which tends to engage the pin with a hole 19 is first pushed in to disengage the arm from the bracket, rotated to effect the slice thickness adjustment as indicated on a graduated scale or the knob and then released to allow the arm to lock itself. The mechanism may be arranged to effect the feed on the forward stroke of the tube and the clutch 1 may be of the pawl and ratchet type.
Patent GB-210748-A (GB)
IPC: C09H3/02
Filed: 1923-12-22
Abstract: Gelatine suitable for the preparation of photographic emulsions is prepared by adding to a gelatine solution, which has been purified by an electro-osmotic process, any substance having an alkaline reaction to neutralize the solution; albuminous matter precipitated during the electro-osmotic purification may first be filtered off.  Examples of the process are given.
Patent GB-924337-A (GB)
Title: Improvements in or relating to textile spinning machines
IPC: D01H11/00
Filed: 1961-09-07
Abstract: 924,337. Spinning yarns. LUWA A.G. Sept. 7, 1961 [Sept. 29, 1960], No. 32218/61. Classes 120 (2) and 120 (3). In a spinning machine, each of at least some of the spindles has rotatable therewith at least one fan co-operating with open- or closed-circuit ducting to create therein an air stream for cleaning and/or cooling the machine. In the machine of Fig. 1, suction nozzles or orifices 9 and 10 at the drafting rollers 7, 8, communicate through ducts 11, 12, with a negative pressure chamber 13 extending the length of the machine and including a filter 14 for retaining fibres and foreign matter drawn through orifices 9, 10, and through openings 23 from the vicinity of roving bobbins 6 on a creel 5. Air leaves chamber 13 through ducts 15 and 16 and passes to blowers 19 and 20 which include fan impellers or rotors, mounted on spindles 4 above their frames 2 and 3, and direct air in the direction of arrows 21 and 22. A proportion of the expelled air is redrawn through nozzles 9, 10, to produce a partially-closed transverse air circulation and/or such air may be directed laterally to cool the spindle bearings. The spindles pass through the duct wall at 24. As shown in Fig. 2, each spindle 34 mounts a bush 35 carrying radially projecting and peripherally spaced fan blades 36 which rotate in a stationary ring 37 (serving as the blower casing) which communicates with a common suction duct 38 through openings 39. In a modification, Fig. 4 (not shown), each blower has a separate intake spiral within the duct 38. Alternative forms of radial-flow blowers shown in Fig. 5, comprise impellers 50 mounted on spindles 34 and rotating in a stationary ring 51, mounted on duct 38 concentrically with opening 39 therein, or with a rotating guide ring 51a communicating with an inflow nozzle 51b fixed to the duct wall. Fig. 6 shows a guide ring 52 connected to a fan impeller 53 for rotation therewith, leaving a gap 54 between the ring and the duct wall. A centrifugal blower carried on a spindle 34, Fig. 7, discharges air in a direction determined by the positioning of a spiral casing 55. Secondary air intakes may be formed by annular gaps between the spindle body and the upper wall of duct 38 to ensure pneumatic cleaning of spindle parts. The duct 38 may extend only up to the intake of the impeller, i.e. the spindle need not penetrate the duct. Separate impellers on one spindle may connect to separate ducting systems.
Patent GB-642763-A (GB)
Title: A method of regulating a shunt commutator motor
IPC: H02K27/16
Filed: 1947-12-06
Abstract: 642,763. Transformers. MORAVIAN ELECTRICAL ENGINEERING WORKS, NATIONAL CORPORATION, and KLIMA, V. Dec. 6, 1947, No. 32224. Convention date, Dec. 6, 1946. [Class 38 (ii)] [Also in Group XXXVII] A transformer for regulating the speed of a three-phase shunt commutator, motor by applying to the rotor a variable voltage has a secondary winding 4 with base-portions adapted to be engaged by movable sliding contacts 5, 6 which slide simultaneously in opposite direction. The transformer has a primary winding 3 subdivided in two parts 3a, 3b arranged in different cores, so as to produce a secondary voltage out of phase with respect to the motor standstill secondary voltage. The transformer has two additional secondary windings 7, 8 which are so arranged with respect to the first secondary winding 4 that the phase of the windings 4, 7 is the same but different from that of the winding 8. In a modification, an intermediate transformer having two secondary windings is connected between the regulating transformer secondary winding and the rotor in order to increase the number of phases applied to the rotor.
Patent GB-409785-A (GB)
Title: Improvements in tins, boxes and like containers
IPC: B65D43/02
Filed: 1932-11-15
Abstract: 409,785. Airtight tins for tobacco and the like. BARRINGER, WALLIS, & MANNERS, Ltd., Mansfield, Nottinghamshire. Nov. 15, 1932, No. 32257. [Classes 18 and 125 (iii).] Relates to air tight tins of the type described in Specification 374,127, having a flange at the lower edge of the lid and a cooperating shoulder on the body with an interposed gasket. According to the invention the co-operating flanges 14, 17 are curved or sloping and are inturned from the body and cover respectively. The wall 15 serves as a spigot for the flange 16 and the flange 14 slopes downwards as shown in Fig. 2. The wall 15 may be integral with the flange 14 or may be formed by a separate liner. The tin may be of substantially rectangular form with curved or bowed sides. Alternatively the tin may be of polygonal form with rounded corners. The flange 16 may be doubled as shown, and corresponding in shape to the flange 14. The doubled flange 16 is formed by expanding a short wall or rim on the inturned flange of the lid.