baber/WOPTO huggingface dataset:
Patent GB-369583-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22D21/00
Filed: 1930-10-22
Abstract: 369,583. Mould materials. AMERICAN MAGNESIUM CORPORATION, Oliver Building, Pittsburg, U.S.A.- (Assignees of Wood, R. T. ; Lakewood, Ohio, U.S.A.) Oct. 22, 1930, No. 31724. Convention date, Oct. 23, 1929. [Class 83 (i).] Moulds for casting magnesium and other easily oxidized metals are made from sand mixed with potassium sulphide alone or with other protective substances of different vapourizing temperatures. One or more of the following substances may be used, viz. : ammonium fluoride, chloride, or phosphate, magnesium oxalate or fluoride, sulphur, urea, naphthalene, anthracene, and chrysene. Specifications 369,580, 369,581, 369,582, and 369,584 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of any combination of protective substances including the other substances mentioned in the Specifications referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-954504-A (GB)
Title: Fluid-mechanical power transmission unit
IPC: F16H47/07
Filed: 1960-09-15
Abstract: 954,504. Hydro-mechanical variable-speed gear. M. M. SURI. Sept. 15, 1960, No. 31802/60. Addition to 851,515. Headings F2C and F2D. Variable-speed gearing for Diesel trains &c. comprises an engine-powered shaft 1 which on starting drives through gears 2, 3 to the impeller 4a of an hydrodynamic torque converter whose turbine 4b drives through gears 7, 8 to an output shaft 6, establishment of direct mechanical torque transmission through the gearing being effected by emptying the torque converter while simultaneously filling a small fluid coupling 14, 15 to synchronize a clutch 16, which can then be engaged by admitting oil under pressure through a shaftduct 19, 19a to a servo cylinder 19b. The clutch 16 can be disengaged by admitting oil under pressure through a shaft-duct 20, 20a to an oppositely disposed servo cylinder. As shown, the clutch 16 is of the multi-disc type, and input and output driven pumps 21, 22 supply oil through a differential valve 27 to lubricate the gear bearings, and also the plates of the clutch 16 when the latter is disengaged. Control is effected from a manually-operated lever which in a first position admits compressed air to a valve 23, thereby conditioned to pass oil from the engine-driven pump 21 and a pipe 21a through a pipe 23a and a valve 24 connected to a pipe 24a to fill the torque converter 4. When a sufficiently high speed of the train has been reached, the manuallyoperated lever is moved to a second position in which the valve 24 is moved by compressed air to drain the torque converter 4 and instead connect the pressure oil supply pipe 23a to a pipe 24b leading to the fluid coupling 5, accordingly filled for synchronization. The manuallyoperated lever is then moved to a third position, so that compressed air conditions a valve 25 to pass oil from the output-driven pump 22 and a pipe 26a to a pipe 26b and the shaft-duct 19 for engagement of the multi-disc clutch 16. Oil under relatively low pressure is supplied continuously from whichever of the input and output driven pumps 21, 22 produces the greater pressure through throttling devices 28, 29 and the differential valve 27 to the shaftduct 20 for clutch disengagement, which is effected by restoring the valve 25 to the position shown and accordingly venting the clutchengaging pipes &c. 26b. The pressure of the oil produced by the output-driven pump 22 may be used to actuate electromagnetic relays preventing engagement of the clutch 16 below a predetermined speed, or restoring the gearing to neutral above a predetermined speed, these relays acting on the valves 25 &c. Further, the relays may actuate the brakes of the train.
Patent GB-435076-A (GB)
Title: Improvements in the manufacture of compressed refractory materials
IPC: B28B3/02
Filed: 1934-11-08
Abstract: 435,076. Moulding refractory material by tamping machines. SOC. ANON. DES PRODUITS REFRACTAIRES & CERAMIQUES DU NORD, 48, Rue la Boetie, Paris. Nov. 8, 1934, No. 32071. Convention date, Nov. 9, 1933. [Class 87 (ii)] In the manufacture of compressed refractory blocks, the material E is inserted in a mould having freely-floating sides A, and is compacted by pounding, the sides A being permitted to be displaced relatively to top and bottom blocks F, I, during the pounding. The pressure may be applied by a drop hammer or other means striking the block F. The mould sides A may be separable and may consist of two L-shaped parts hinged at one end and locked by a wing-nut at the other. Wooden lining blocks may be inserted. The sides encircle the blocks F, I, and are adapted to move down over the block I. They may be supported on a table G maintained in a raised position by cams H on shafts carrying pulleys over which cords carrying counterbalance weights are wound. A crank handle is provided to rotate the shafts and lower the table.
Patent GB-386396-A (GB)
Title: Improvements in or relating to loud-speaker units
IPC: H04R11/00
Filed: 1931-11-19
Abstract: 386,396. Loud-speakers. NEWLAND, E. S., 6, Clyda Mansions, West Hampstead, London. Nov. 19, 1931, No. 32094. [Class 40 (iv).] Relates to a loudspeaker unit in which a member 10 associated with the armature 9 is controlled by an arcuate spring strip 15, the ends of which bear on a back plate 5, the armature being adjusted between the pole-pieces by an adjusting screw 14, the threaded end 13 of which passes through a hole 16 in the apex of the strip and is threaded into the member 10 and consists in the provision of a set screw 18 fitted radially into a plain part of the screw 14 and located under the arch of the strip 15, the screw 18 serving to locate the screw 14 in a longitudinal direction and co-operating with fixed stop pins 19 on the back plate 5 to limit the rotational movement of the screw 14. The ends of the strip 15 are bifurcated as shown in Fig. 4. A screw 11 .secures the armature 9, member 10 and radiused block 12 to the back plate 5 which in turn is connected by screws 7 passing between the arms of the magnet 8 to a front plate 6 which carries a U-shaped springy tongue 20, the free end of which is secured to the driving rod 21.
Patent GB-490642-A (GB)
Title: Apparatus for recording the working period of machines
IPC: G07C1/08
Filed: 1937-11-23
Abstract: 490,642. Recording working periods of machines. AKTIEBOLAGET LJUSSIGNALER. Nov. 23, 1937, No. 32228. Convention date, Nov. 25, 1936. [Class 106 (iv)] Apparatus for recording working periods of a number of machines comprises a number of electromagnets 5 each of which receives impulses from its corresponding machine when working, and so oscillates a substantially horizontal lever means 9 which bears against the side of a vertical leaf spring 11 carrying a stylus 2. When the machine is not working, the stylus 2 draws a vertical line on a sheet of paper 1 driven. by clockwork, but when the machine is working, the stylus oscillates and draws a series of substantially horizontal lines close together making a wide mark as shown in Fig. 1. The electromagnets are arranged in staggered rows but the lever means 9 are shaped so that the ends bearing against the leaf springs 11 are at the same level. The leaf springs are held by wedges in grooves in that part 14 of the frame.
Patent GB-988367-A (GB)
Title: Semiconductor devices and method of fabricating same
IPC: H01L21/00
Filed: 1961-09-08
Abstract: 988,367. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Sept. 8, 1961 [Sept. 9, 1960], No. 32336/61. Heading H1K. A semi-conductor device comprises a semiconductor body with a PN junction terminating at one face and there defining an enclosed area within which are disposed a plurality of interconnected elongated diffused zones forming PN junctions with the underlying material. One such device is made from a P type silicon wafer, lapped to a thickness of 12 mils and optically finished, by first diffusing donor impurities into its entire surface to a depth about 3 mils, and then lapping one surface to leave a body 4 mils thick with a PN (collector) junction exposed on its upper face. After heating in steam to form an oxide layer over the entire surface the upper face is coated with a photoresist, exposed to light through a mask with a central E-shaped opaque region, the unexposed region of photoresist dissolved away and the surface etched in hydrofluoric acid to remove the oxide coating in the E-shaped area. Phosphorus is diffused from a phosphorus pentoxide source into the silicon surface thus exposed to form a multi-armed emitter region 0À1 mil thick. To facilitate contact to the P type (base) zone gallium is diffused into the base and emitter zones after removal of the remaining oxide layer. During this process a P + zone is formed on the base zone but the N type zone is extended in depth and its surface remains N type. Layers of resist material are next formed over the areas at which the emitter and collector junctions intersect the wafer surface by a photoresist and masking technique as described above, a nickel layer deposited by electroless plating over the wafer surface remaining exposed and the resist removed. Alternatively only the emitter junction is masked, a nickel layer formed over the rest of the wafer being later removed from the collector junction by etching in nitric acid through a wax mask. In either case, to facilitate adhesion, the nickel may be applied in two stages with an intermediate sintering in nitrogen at 700‹ C. for an hour. The resulting device 24 is mounted as shown in Fig. 16 with layers 15, 17, 19, 21 and 22 of flux, layers 16, 20 and 26 of indium solder, and nickel plated molybdenum plate 18 on a gold plated header 25 and the assembly bonded together by heating in an inert atmosphere. Since the solder does not wet silicon the emitter junction is not shortcircuited during this process. Subsequently wires are cold pressure bonded to the emitter and base contacts thus formed.
Patent GB-322305-A (GB)
Title: Improvements in automatic temperature regulators
IPC: G05D23/12
Filed: 1928-11-06
Abstract: 322,305. Wingfield, B. R., and Wing- field, B. T. Nov. 6, 1928. Thermostats.-A high. temperature is automatically regulated indirectly from a thermostat situated in a lower temperature region obtained by passing air through a tube in the controlled apparatus in such a way that the temperature obtained is dependent on the higher temperature. A tube of quartz or porcelain projects through a furnace, one end being open to the air and the other connected to an aspirator or air pump. The relation between the temperature of the air and that of the furnace is determined by measuring instruments. Alternatively, furnace gases may be drawn through a tube projecting into the furnace, and the portion outside the furnace may be surrounded by another tube through which air is drawn. A thermostat of lower temperature range is subject to the temperature of the air. Air is forced by a blower D through a tube B in a furnace A, and thermostatic bulbs G, H are placed at the two ends of the tube to control differentially a regulator J such as that described in Specification 293,272, operating on the heating medium. A valve C with graduated setting may be provided to obtain the desired ratio between furnace temperature and air temperature. The thermostatic bulb in the incoming air may be omitted. or the air may be drawn through boiling water to keep its temperature constant.
Patent GB-968455-A (GB)
Title: Method of obtaining artificial commutation of an inverter
Inventor: DAVIS REX MOUNTFORD
IPC: H02M7/46
Filed: 1960-09-22
Abstract: 968,455. Inverting. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Sept. 21, 1961 [Sept. 22, 1960; Sept. 11, 1961], Nos. 32536/60 and 32455/61. Heading H2F. An inverter 20 is commutated by the capacitor 17 connected across the bridge of switching elements A, B, C, D. The inverter elements may be thyratrons, mercury arc tubes, or silicon controlled rectifiers, and the bridge elements any of these, or transistors. At starting the elements A and C are switched on to charge the capacitor, and then extinguished automatically. To commutate the inverter, elements B and D are switched, connecting the charged capacitor so as to reverse the polarity of the inverter input. For inductive loads voltage limiting diodes L may be used, and the voltage of the commutating pulse may be increased by connecting a D.C. bias in series with the bridge at 27, 28. The single capacitance required is smaller than the total capacitance that would be required for commutating a polyphase inverter from the A.C. side in the usual way. If the inverter has two elements in series (e.g. a bridge circuit) separate commutating pulses are desirable. Fig. 4 (not shown) shows two capacitors 17a, 176, in series across the bridge, with their midpoint connected to the neutral point 30 of the D.C. supply, or to the mid-point of capacitors 31, 32 connected between the D.C. supply terminals. Two bias voltages, and smoothing inductors in both D.C. lines are necessary.
Patent GB-604780-A (GB)
Title: Container for lip salves and like toilet substances
IPC: A45D40/06
Filed: 1945-12-03
Abstract: 604,780. Lipstick &c. holders. FACTOR & CO., M., and MATCHAN, L. J. Dec. 3, 1945, No. 32574. [Class 18] A metal container for lip salve or like toilet material and comprising a body 10, holding a cup 11 which contains one end of the lip salve and having a pin 12 sliding in a groove 13 in the body, is provided with a ring 17 frictionally secured to the enlarged base 19 of the container body. A sleeve 14 carries rigidly fixed within a band 16 having a spiral slot 15 and fits over the body. Part 20 of the sleeve is enclosed by the ring 17, the beading 21 lying against the top edge of the ring. The slot 15 engages the pin on the cup so that rotation of the sleeve relative to the container causes the cup to rise. A cover fits over the container and lightly grips the lesser diameter of the ring. The grip may be facilitated by pressing out a small tongue of metal from the ring, which engages the cover.
Patent GB-155117-A (GB)
Title: A reversible washhouse boiler lid and drainer combined
IPC: D06F1/10
Filed: 1919-12-30
Abstract: 155,117. Daniels, S., and Miles, G. Dec. 30, 1919. Washing - boilers. - In a washhouse boiler. the lid 1 has a pivoted strut 3 adapted to support it in a reversed position at a suitable angle for draining pur. poses. Holes 7 in the rim allow drainage, and the wide handle 8 pre vents excessive side tipping.
Patent GB-361567-A (GB)
Title: Improvements in hasp fastenings for suit and attache cases and the like
IPC: E05B65/50
Filed: 1930-11-01
Abstract: 361,567. Hasp fastenings. CHENEY, C. W., Factory. Road, Soho, Birmingham. Nov. 1, 1930, No. 32861. [Class 44.] A slidably adjustable hasp fastening for suit cases, &c. comprises an attachment plate a with a groove a having along the bottom thereof a line of ratchet teeth a<4>, and a trough-like hasp-bar c slidably and hingedly secured to plate a by lugs, not shown, passed through slots a at the bottom of the groove, and clinched over. Alternatively, lugs may engage slots or grooves in the side-walls of the trough. The bar carries the usual staple &c. d for engagement by the lock bolt, and a spring e with a tongue e<2> which engages the teeth a3 when the hasp is in the locked position (shown dotted, Fig. 2), and throws the bar c outwards, disengaging the ratchet, when the staple d is released. Perforations may replace the ratchet teeth, and a spring-pressed pin the tongue e<2>. Particularly in its closed position the bar c fits in the groove a2 and is thereby held against lateral displacement.
Patent GB-1401222-A (GB)
Title: Apparatus for thawing or de-icing rails and points
IPC: E01H8/10
Filed: 1972-07-13
Abstract: 1401222 De-icing rails B KIRSCH 13 July 1972 [13 July 1971 28 Sept 1971] 32876/72 Heading B7J [Also in Division F4] Apparatus for thawing or de-icing rails and points comprises a frame 1, which has burners 3 along its sides and is carried by a support structure 6 connectable to a vehicle running on rails to support the frame 1 in a generally horizontal position with the burners 3 directed towards the rails, a feed pipe having a shut off valve (41), Figs. 5-7 (not shown), for liquid fuel supply to the burners 3, an ignition system for the burners, and actuating apparatus such as an hydraulic ram 12 connected to the frame 1 operable to pivot the frame 1 in a generally horizontal plane relative to the support structure 6. As shown in Fig. 1, the frame 1 is rigid and pivotally connected to a portion 9 of the structure 6 which projects over the frame, by a central rotary bearing 5. As shown in Fig. 4, the frame 1 is a hinged parallelogram which pivots about the pivotal connections of its longitudinal struts 2 to a cross tie member 4. The frame 1 is bodily laterally displaceable parallel to the support structure, such as by slides 21 carried by the portion 9 and engaging rollers 22 carried by a portion 7 which is connectable to the vehicle by members 8. Side struts 17 are pivotally connected at 18 to uprights of portion 9 and are connected via a cross member 10 to the frame cross tie 4, so that the frame 1 can be pivoted upwardly and downwardly about the pivots 18 by actuating hydraulic rams 20. As an alternative means for bodily lateral movement of frame 1, an arm (15), Fig. 2 (not shown), carried by cross tie 4 may be connected to cross member 10 by a further hydraulic ram (16), so that rams 12, 16 may act in combination to move frame 1. An electrical control circuit, Figs. 5-7 (not shown) controls ignition coils (36) to ignite the burners 3 and an electro-magnetic shut-off valve (35) to supply gas, for ignition to the burners. Gas is fed via pipes in or on the longitudinal members 2 of the frame 1 and connectors 23, Fig. 1, or 24, Fig. 4, are provided to receive flexible gas supply lines. The control circuit also electro-magnetically operates the liquid fuel shut-off valve (41), via a timer relay (40) which closes the valve (41) after a period of say 15 seconds unless a push button (39) is pressed to restart the timed valve opening.
Patent GB-353346-A (GB)
Title: Improvements relating to apparatus for distilling water
IPC: B01D1/12
Filed: 1930-11-01
Abstract: <PICT:0353346/III/1> In separate heater and evaporator apparatus for distilling water mixed with chemicals to prevent incrustation as described in the parent Specification in which a decanting cylinder 5 is provided in the evaporator 2, the walls of the cylinder 5 are extended to come above the general level of the water so that only the crude feed water mixed with reagent enters the decanter 5, thus permitting independent rates of flow of the water passing through the decanter and of that circulating between the heater 1 and the evaporator 2.  The water is supplied through a pipe 10 over a diffuser 11 and the pipe 3 delivering water from the heater is arranged to enter the evaporator tangentially.
Patent GB-328936-A (GB)
Abstract: 328,936. Spicer, F. S. Aug. 30, 1929. Adding-apparatus; multiplying and dividing apparatus; differential mechanism.-Calculating- apparatus of the type wherein the sum of units is indicated as well as the last addition made to the total units comprises a ratchet wheel 3 which carries a pointer 2 and which is prevented from rotating anti-clockwise by means of the spring- influenced pawl 5. A pointer 6 loosely mounted on the sleeve 7 of the wheel 3 can be manually operated by means of the knob 8 to rotate the wheel 3 in a clockwise direction through the spring-influenced pawl 9. Movements of the pointer 6 between the zero stop 17 and different points on a graduated scale are thus added by the pointer 2 which moves over the same scale. Complete revolutions of the pointer 2 are shown by another pointer on an auxiliary scale which is operated by the ratchet wheel 25 and trip mechanism 27, 28, 29. To correct errors when the sum total of units is being registered there is provided a handle and connecting cord for disengaging the pawl 5 from the ratchet wheel 3. When used in connection with horse racing the pointer 2 and the pointer actuated by the trip mechanism are provided with diametrically opposed extensions which move over auxiliary scales and which can be used for obtaining the amount to be deducted from the units bet as commission for the operator. To calculate the amount to be paid out per unit bet on a horse, discs 30, 31 are provided, one for win bets and the other for place bets, which have money values marked round their circumference showing through apertures 39 and 40 which are provided with ratchet wheels 32, 33 actuated by spring- influenced pawl members 34, 35. The pointer 6 is moved backwards and forwards between the zero stop 17 and the point corresponding to the number of units bet on the horse until the pointer 2 arrives at a point corresponding to the total number of units bet less the commission taken. Every time the pointer 6 is moved a ramp 43 on the pointer displaces a rod in rigid connection with the projection 38 which thus actuates the pawl 34 or the pawl 35 to give a step by step movement to the disc 30 or the disc 31 according to which position the projection 38 is moved to, the amount to be paid out per unit bet showing through the aperture 39 or 40. An alternative electro-mechanical arrangement for actuating the discs 30 and 31 is described. The apparatus can be applied to sports other than horse racing.
Patent GB-760245-A (GB)
Title: Improvements relating to foundry moulds and cores
Inventor: BROOKES ALFRED
IPC: B22C1/22
Filed: 1953-11-26
Abstract: In the manufacture of foundry moulds and/or cores employing aminoplast resins, chlorinated aliphatic hydrocarbons which are relatively stable and not volatile at the curing temperature of the resin but which decompose at the temperature involved in the foundry operation are applied so as to be present in and/or on the moulds and/or cores, to counteract the odours produced.  Suitable chlorinated compounds are hexachloroethane, chlorinated paraffin wax, chlorinated rubber and polymers of vinyl and vinylidene chloride and their copolymers with, for example, vinyl acetate, acrylonitrile or each other.  The resin may be derived from urea and its derivatives, cyanamide, dicyandiamide and melamine and its derivatives.  The chlorinecompound may be incorporated with the resin by dry grinding or by dispersing the former substance in an aqueous solution of the resin and drying.  The chlorine-compound may be dissolved in a water-miscible solvent, e.g. hexachloroethane in ethanol, which is added to the resin solution, or a solution in a water-immiscible solvent, e.g. benzene, may be emulsified with the aid of a wetting agent into the resin solution, or a paste of the compound with agents such as starches or dextrins may be blended with the resin. Extenders, plasticisers, diluents and "green strength" agents such as flow may be included.  The resin may be used as the binder for the sand, or in any other application, e.g. as a cement, in the manufacture of the mould or core; and the chlorine-compound may be mixed with the resin or incorporated in any other way in and/or on the mould or core.
Patent GB-823331-A (GB)
Title: Improvements in toy football games
IPC: A63F7/06
Filed: 1957-10-24
Abstract: 823,331. Table games. ZAGON, G. Oct. 24, 1957, No. 33189/57. Class 132(2) In table football each goalkeeper puppet is mounted by a pivot 13 on a transversely slidable carriage 15 and means are provided so that it can be swung down to either side to simulate diving for the ball. As shown the puppet consists of arms 33 pivotally or resiliently mounted on a torso part 31 telescoping on a leg-part 9. The puppet is mounted by a pin and slot connection 11, 12 on a rod 10 the lower end of which is pivoted at 13 to carriage 15. The latter is moved by a control knob 19 acting through slider 20 and rod 25 beneath, the playing surface. Rod 10 carries a conical block 16 which co-operates with an aperture 17 in a slider 18 to swing down the puppet after it has been traversed a certain distance.