baber/WOPTO huggingface dataset:
Patent GB-310413-A (GB)
Title: Improvements relating to railway and like signals
IPC: B61L29/26
Filed: 1929-04-09
Abstract: 310,413. Bouthors, P. April 25, 1928, [Convention date]. Track apparatus actuating signals other than on trains.-A system for protecting a level crossing comprises a train-operated signal - setting treadle on each side of the crossing and a resetting treadle at the crossing. The treadles situated on opposite sides of the crossing are connected by a cable 14 to the ends of which weights 21<a> are attached and which supports a weight 21 hung on a pulley. The ends of the cable 14 are locked by bolts 15. The first wheel of an approaching train depresses a treadle 16, setting free the bolt 15. The falling weight 21 carries a rack 22 meshing with a gear wheel of a centrifugal device, the rotation of which moves a stopping detent 35 from a pulley 11 to which one end of a signal-actuated cable 10 is attached. The signal then assumes a stop position under the action of a weight 12 attached to the other end of the cable 10, and lamps 8 previously hidden by the arm are exposed. The first wheel, depressing the treadle 43 at the crossing, rotates by means of a rod 42 a crank 41 which winds a spring in the apparatus 46, the unwinding of which is retarded by a liquid brake and thus retains the treadle clear of the following wheels. The crank 41 also rotates the pulley 11 restoring the signals to the proceed position and on the pulley 11 reaching its initial position it is locked by the detent 35. The unwinding of the spring rotates the shaft 44 and raises the links 47, and the weight 21 to their original position. While the weight 21 is being lifted a counterweight 21<a> acts on the cable 14 and returns it to its initial position where it is locked by a bolt 15. The train passing over the treadle beyond the crossing releases its bolt, but the weight 21 being suspended on the pawl the cable 14 is drawn along by a counterweight corresponding to 21<a> and the treadle remains lowered until the weight 21 becomes operative. The releasing device of pulley 11 may operate any signalling apparatus. To control one signal from two tracks the treadle beyond the crossing is placed on the second track and the apparatus shown in Fig. 2 is duplicated.
Patent GB-1387625-A (GB)
Title: Immunospecific separation of antigens and antibodies
IPC: C07K16/10
Filed: 1971-04-23
Abstract: 1387625 Isolation of anti-bodies and antigens DEFENCE SECRETARY OF STATE FOR 24 July 1972 [23 April 1971] 10950/71 Heading A5B A carbon-antigen "complex" is formed by contacting a mass of sorbent carbon with an antigen-containing material. The complex can be further reacted with the antibody for the antigen to form a carbon-antigen-antibody complex which can be separated and washed, and purified antibody liberated therefrom e.g. by washing with a medium of suitable pH. Alternatively, the complex may be reacted with further antigen to form a carbon-antigenantibody-antigen complex from which purified antigen can likewise be obtained. The operations can be performed simultaneously on more than one antigen or anti body. The antigen may be a virus, e.g. Semliki Forest or Langat virus.
Patent GB-551089-A (GB)
Title: Improvements in steam generating plant
IPC: F22D3/00
Filed: 1941-08-29
Abstract: 551,089. Feedwater supply systems for steam boilers. RITCHIE, E. G. Aug. 29, 1941, No. 11045. [Class 123 (ii)] Steam is supplied from a boiler 1 to a consumer 8 through a pressure-reducing valve 10, and the feedwater supply valve 19 is so controlled by the variations in the boiler pressure consequent on variations of steam demand that when the pressure falls, the boiler water level drops and at a predetermined low pressure the feed is cut off, and when the pressure rises, the water level is restored. Overriding float-operated valves 20, 22 prevent overfeeding and underfeeding.
Patent GB-1209367-A (GB)
Title: Solutions, in particular stable aqueous or aqueous-alcoholic solutions, of fat-soluble perfumes
IPC: C11B9/02
Filed: 1968-03-07
Abstract: 1,209,367. Perfume solutions. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 March, 1968 [8 March, 1967], No. 11071/68. Heading A5B. A perfume solution comprises a fat-soluble perfume and a hydrogenated polyoxyethylated castor oil (as defined).
Patent GB-1316401-A (GB)
Title: Process for hydroelectrolytically dimerizing acrylonitrile
IPC: C25B3/29
Filed: 1971-04-23
Abstract: 1316401 Hydrodimerizing acrylonltrile ASAHI KASEI KOGYO K K 23 April 1971 [25 April 1970] 11194/71 Heading C7B In a process for hydrodimerizing acrylonitrile in an electrolyte containing an electrolysissupporting salt, acrylonitrile, adiponitrile and electrode reaction impairing materials, a portion of the electrolyte is removed from the cell, passed through a cation exchange resin to remove the electrode-reaction impairing materials and then returned to the cell. If the electrolyte is an emulsion it is first separated into oily and aqueous layers and only the aqueous layer is contacted with the ion exchange resin. If the electrolyte is a homogeneous solution, acrylonitrile and water are added to effect the separation into aqueous and oily layers. The exchange resin may be a weakly acid cation exchange resin comprising the cation of the supporting salt, the supporting salt being a quaternary ammonium salt. The reaction impairing materials and the cation of the supporting salt absorbed on the resin may be separated by chromatography. The ion exchange resin may be regenerated by treatment with an acid. The resulting liquid is dialyzed and the cation enriched liquid returned to the electrolytic cell. The electrolyte is pH 3-10 and the cathode is Pb, Hg, Zn, Cd or graphite and the anode is Pb, Pt, Ti, lead oxide or graphite.
Patent GB-591686-A (GB)
Title: Improvements in electric circuit arrangements in which the voltage excursion of a point in the circuit is limited
IPC: H03K4/20
Filed: 1945-05-02
Abstract: 591,686. Thermionic valve circuits. PLETTS, J. W. May 2, 1945, No. 11198. [Classes 40 (iii) and 40 (v)] The invention is essentially based on an arrangement as shown in Fig. 1, in which a valve 1 has a resistance R1 connected between the grid and a source of negative voltage V 1, and a second resistance R2 connected between grid and anode. It is shown that while the valve is conducting, and there is no grid current, the arrangement behaves as if the anode were connected to a constant voltage source through a' low impedance. The anode voltage Va is R2 equal,to -V1-. As an example, R1 and R2 R1 may both be 100 ohms. Then any point whose voltage requires to be limited in an upward positive direction, if connected to the anode, will not exceed a positive value equal to the negative value of V1, and will be connected' to' the source of V1 through'. an impedance of about 200 ohms. In Fig. 3, the invention is applied to limiting the voltage from which a time base sweep starts. The anode of valve 5 is oonnected to the anode of valve 1, arranged as in. Fig. 1, so that its voltage is set by source V1. When valve 5 conducts; its-anode voltagefalls as determined by C1,R4 until current is cut off by applying a negative voltage to the third grid. The anode voltage then rises until it reaches the value set by V1. Fig. 4 shows an arrangement for feeding deflecting voltages to the opposite plates of a cathode-ray tube 21. The wavreform are fed to terminals 6, 7 and applied to the tube 21 at terminals 8, 9. The upward value of 8 is limited by connection to the anode of valve 1, the voltage being set by slider 10 and resistances R1, R2: The lower limit of 9 is determined by a diode 12 connected to slider 10 and which conducts whenever the .voltage at 9 tends to go below the voltage of 10. In an alternative form, Fig. 6, not shown, the diode 12 is replaced by a cathode follower with its grid connected to slider 10. Fig. 7 shows an arrangement for stabilizing the black level in a television signal which is fed through condenser C4 to terminal 8. Valve 1 is normally biassed to cut off and so has no limiting action. At the instants when the television signal corresponds to black, pulses are fed to the first grid of valve 1 to cause it to conduct and limit the anode voltage, and hence the signal voltage to the desired black value as set by the negative voltage applied to R1.
Patent GB-1197867-A (GB)
Title: Push-Button Matrix Switching Device
IPC: H01H36/00
Filed: 1969-03-04
Abstract: 1,197,867. Movable magnet switches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 March, 1969 [7 March, 1968], No. 11463/69. Heading H1N. [Also in Division H4] A push-button coordinate switching assembly has a coordinate array of coupling members X 1 , X 2 , X 3 , X 4 , Y 1 , Y 2 , Y 3 , Y 4, , each provided with a permanent magnet for operation of a respective sealed reed contact unit A, B, C, D, AVC, E, F, G, and the coupling members are selectively movable by push-buttons 1 to 9 and - , 0, + which are movable in the same direction as the coupling members and the longitudinal axes of the reed contacts. In the Fig. 1 arrangement the carrier Y 1  is operated by any of the X carriers so that contact unit AVC is closed and the remaining seven contact units are operated in a " 2-out-of-7 " code. A similar arrangement (Fig. 3, not shown) including some contact units in parallel gives a so-called " at the most 3-out-of-5 " code. Fig. 2 shows the construction of such an assembly with T-shaped carriers X 1 , X 2 , X 3  having their horizontal links passing through clearance slots 17, 19 in the carriers Y 2 , Y 3  &c. Off-set permanent magnets 43, 45 are mounted in the carriers and co-operate with sealed contact units 61 which are magnetically screened by shields 65 which also electrically connect the upper contact 69 with printed circuit conductors on a bottom plate 3 mounted below a holder 1 having recesses such as 13, 15 suitable for either arrangement of carriers and contact units.
Patent GB-728949-A (GB)
Title: A device for the automatic cleansing of containers
IPC: B08B9/08
Filed: 1953-04-27
Abstract: 728,949. Cleaning drums. BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT AKT.-GES. April 27, 1953 [April 28, 1952], No. 11506/53. Addition to 702,611. Drawings to Specification. Class 21. A device for the automatic cleansing of containers according to the parent Specification wherein each cleansing unit is provided with a cubicle for housing a container during a certain period of the cleansing treatment and each cubicle has its own electric drive motors and control devices is modified so that two or more cleansing units are arranged within each cubicle with one common electric motor and control system for all the units within the cubicle. Preferably a door in the cubicle is provided in front of each unit turntable and the electrical system can only be switched on after shutting all the doors in any one cubicle, and is switched off on opening any one door. Exit doors may be provided on the opposite side of each turntable with similar electric switching arrangements. The obliquely positioned adjustable frames for holding the containers over each turntable are mechanically lowered to a position for easy discharge of the container through the exit door, the switching arrangement being such that an opening any one door the frame continues its movement until it comes to rest in this discharge position.
Patent GB-666649-A (GB)
Title: Improvements in or relating to tile making machines
IPC: B28B11/02
Filed: 1949-05-02
Abstract: 666,649. Making tiles. PEGSON, Ltd., and DAVIDSON, D. J. May 2, 1950 [May 2, 1949], No. 11649/49. Class 87(ii) Mechanism is provided for receiving successive charges of concrete, mortar, clay &c. from a suitable source, forming headlocks from the charges, and combining the headlocks successively with their respective tiles or with a ribbon of concrete &c. from which the tiles are subsequently formed. As shown, the headlocks are applied to a ribbon 1 of moulded compressed concrete, mortar or clay, which is fed from left to right on a series of pallets 2 to a cutter operating at B to divide the ribbon into individual tiles. The ribbon is grooved as shown. The ribbon passes under an apparatus C which moulds headlocks from concrete &c. and presses them on to the ribbon, the ribbon being then cut at B just in front of the headlock. The apparatus C comprises a frame 6 having angle irons 7 with wear linings 8 on which the pallets slide. A ram 12 which forms the headlock slides horizontally in grooves 10 in checks 9, this ram having a ram head proper 39 and an extension 36. The upper face of extension 36 is grooved as at 35 to correspond with the grooves in the ribbon. The ram is reciprocated by links 13, Fig. 2, (not shown) journalled on shaft 14 secured to the ram. A plunger 19 which forces the headlock down on to the ribbon slides vertically in a housing 21, being depressed by arm 31 and raised by springs 29. In operation, with the ram 12 retracted to the left and the ram head 39 positioned below the rear edge 40 of a hopper 17, rotating paddles 18 feed concrete &c. on to the extension 36. The ram then moves to the right and compresses the concrete against the front wall of housing 21, as shown, the compression space being bounded at the top by plunger 19 and a web 22 which joins the hopper and the housing. This compression forms the headlock. The ram then retracts to the left and plunger 19 descends, the plunger shearing off the headlock and pressing it on the ribbon, the ribs 42 on the headlock fitting into the grooves 3 in the ribbon. Fig. 4 shows the tile, 41 being the headlock. The plunger dwells for a short time at its nadir, and thereby functions as a strickling tool. The ram also dwells in its retracted position. The plunger then rises and the cycle is repeated. Mechanism may be provided to co-ordinate all the movements, including the rotary movements of paddles 18. The paddles may be replaced by one or more rollers working in conjunction with a packing knife which strips concrete from the rollers. The housing 21 may be separate from the hopper 17.
Patent GB-988313-A (GB)
Title: Improvements in mount assembly for electron discharge devices
IPC: H01J19/46
Filed: 1963-03-25
Abstract: 988,313. Thermionic valves. GENERAL ELECTRIC CO. March 25, 1963 [April 5, 1962 (2)], No. 11664/63. Heading H1D. Two electron discharge devices, e.g. pentodes, are attached by their top and bottom supports to a shield member to form an integral unit resiliently located in a single envelope by said supports. As shown, the shield member 51 is an electrostatic and/or electromagnetic screen, but in an alternative arrangement (Fig. 7, not shown) the shield forms part of the anode of one of the devices. The electrode supports 12, 13, 21, 22 are of mica and are slotted to receive self-locking tabs 54 on the shield on to which both devices are pushed. A number of alternative securing arrangements are described; some (Figs. 5 and 6, not shown) employ differently shaped self-locking tubs while others (Figs. 1 and 2, 7 and 8) use plain or curved tabs with rectangular slots and the design is such that the shield is assembled with the electrodes of one device and the other one is afterwards attached by hooking on to the tabs, which may provide a camming action. The second device may then be held by welding a shield bracket to one of its electrode supporting rods.
Patent GB-405837-A (GB)
Title: Improvements in or relating to the production of the corpus luteum hormone
IPC: A61K31/56
Filed: 1933-04-21
Abstract: Corpora lutea, to be worked up for the preparation of the contained hormone, are treated preliminarily with substances such as sodium fluoride, common salt or saltpetre, in order to prevent destruction of the hormone by the ferments which are also present in the organs. The use of extraction agents, such as alcohol, or of strongly acid or basic substances, or of strong oxidizing agents is excluded.  The Specification as open to inspection under Sect. 91 refers also to the use of chloroform.  This subject-matter does not appear in the Specification as accepted.
Patent GB-552614-A (GB)
Title: Improvements in a process for production of vitaminized dry milk
IPC: A23C9/158
Filed: 1941-09-13
Abstract: 552,614. Dried milk. SVENSKA MJOLKPRODUKTER AKTIEBOLAG. Sept. 13, 1941, No. 11751. [Class 49] In the production of vitaminized dried milk, the vitamins are intimately mixed with concentrated milk which is then converted into a dry form by a rapid drying process, such as spray or drum drying- The vitamins may be added in pure form, emulsions or solutions in solvents which are evaporated during the drying. Pasteurized milk may be concentrated to a dry substance content of 30-60 per cent. and the vitamins subsequently added thereto, in a vacuum evaporator. For continuous working, the vitamins may be introduced through a branch pipe on the conduit conveying the concentrated milk to the driers, and especially when vitamins insoluble in water are added, intimate mixing may be effected in an homogenizer. Invert or other sugar may be added for increasing the solubility of the dry product. The drying may be effected in the absence of air e.gn an inert gas such as nitrogen or carbon dioxide. Specification 394, 182 is referred to.
Patent GB-1254826-A (GB)
Title: Improvements in polyalkylene filaments, staple fibre and yarns
IPC: D04H1/42
Filed: 1970-03-12
Abstract: 1,254,826. Polyester filaments. FIBER INDUSTRIES, Inc. 12 March, 1970 [12 March, 1969; 17 Nov., 1969], No. 11840/70. Heading B5B. [Also in Divisions C3, D1 and G1] Fibres of polytetramethylene terephthalate or polytrimethylene terephthalate are produced from a melt by extrusion through an annular pack containing 96 holes each having a diameter of 0À018", the extrusion being conducted at a rate of 34À3 lb./hour, maintaining a pack outlet temperature of 260 C. The extrudate is subjected to an outflow quench at a flow rate of 80 cubic ft./min. The filaments are wound up at 2000 ft./min. having a resultant spun denier/filament of 40 (Examples 1 and 5). 'Blends of polyethylene terephthalate and poly(1,4-butylene terephthalate) or poly(1,3- propylene terephthalate) are extruded as in Examples 1 and 5, but using an outlet temperature of 275 C. (Examples 8 and 9). In Example 1 the yarn is drawn in a ratio of 3À2, finished, crimped in a stuffing box and then heat set at 150 C. for 18 minutes.
Patent GB-179186-A (GB)
Title: Improvements in or relating to apparatus for detecting defective electrical insulator units in a series subjected to a high alternating tension
IPC: H02G7/18
Filed: 1922-04-27
Abstract: 179,186. Bennett, C. E. April 30, 1921, [Convention date]. Casings and supports for instruments; terminals; electrostatic meters; detecting and locating faults.-In apparatus for detecting defective insulating elements in a series subjected to high alternating tension, an instrument comprising a movable and balanced indicator is connected by means of suitable highly insulated terminals to the conducting material on either side of an element, the indicator being deflected against magnetic, spring or other control by electrostatic forces clue to the potential difference across the element and to the difference of potential between the element and ground to an extent dependent on the insulating condition of the element. The terminals 2, 3 of steel or other material are attached to a plate 10 of insulating material, one terminal 2 being connected to the spindle 6, Fig. 1, of the indicator 5, preferably by means of conducting plates 15 with bearings 8 for the spindle 6. The indicator 5 may be of conducting material or of light material such as paper covered wholly or in part with gold leaf or other conductor, and is of H cross-section. Terminal 3 is provided with an insulating covering 9 over nart of its length so that the apparatus, when applied to an element of a series, does not diminish the insulation of the series or disturb the voltage distribution. A helical or other spring 1 is arranged at the free end of each terminal to facilitate contact of the terminal with the conducting material between insulating elements. The plate 10 carries a casing 13 with a glass or other transparent cover 14 to permit observation of the indicator 5 and to allow the apparatus to function in the electrostatic field due to the difference of potential between the element tested and ground. The zero position of the indicator 5 may be controlled by a small magnet 7 on the spindle 6 under the action of a fixed magnet or of the terminal 3 suitably magnetized. The instrument may be carried on an insulating handle 17, Fig. 3, with two arms 18 engaging apertures in the plate 10. The indicator 5 may be insulated from both terminals.
Patent GB-973462-A (GB)
Title: Improvements in or relating to a method of and means for the compressing of gas
IPC: F25B49/02
Filed: 1962-03-28
Abstract: 973,462. Refrigerating. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. March 28, 1962 [June 23, 1961], No. 11890/62. Heading F4H. [Also in Division F1] A gas compressor unit 10 (see Division F1) for a mechanical refrigeration system comprises a chamber 20 supplied with liquid refrigerant, from a point between an expansion valve 16 and an evaporator 18, by a conduit 72, the level of the liquid -in the chamber being controlled by a valve 78 connected to a float 84. Gaseous refrigerant is supplied through a conduit 24 to the chamber 20 where it is stored at low pressure. Two rotary scoops 52 provided with ports 66 are successively immersed in the liquid and gaseous refrigerant, and thereby trap volumes of gas between slugs of liquid. The gas is centrifugally compressed between the liquid slugs in conduit portions 60 and is expelled through elongated slots 64<SP>1</SP>, passages 50 and hollow shaft 40 to a condenser 12.
Patent GB-563779-A (GB)
Title: Improvements in or relating to the separation of solid materials having different specific gravities by means of liquid media
IPC: B03B5/40
Filed: 1942-11-14
Abstract: 563,779. Wet separating. RIDLEY, F. F., and SCHOLES, W. Nov. 14, 1942, No. 11895/44. Divided out of 563,754. Drawings to Specification. [Class 82 (ii)] In the separating of solid granular materials, such as coal or ores, in a stream of liquid of a density intermediate those of the solids being separated, the stream is caused to flow with increasing velocity while the floats and the material below the surface of the stream are caused to travel with the latter, the sinks being mechanically conveyed along with the stream. at a depth suitable for separation so that the materials and stream all move in the same general direction. The conveying is carried out under the whole path of the floats and over the width of the stream and the middlings are caused by the stream to discharge with the floats or the sinks or separately from either and may be transported to their discharge over weirs mechanically or by the current flow or by both. The liquid is composed of a suspension of finely ground solids in water and the flow is sufficient to prevent settlement of the solids so as to maintain the uniform density of the suspension. The process is carried out in the apparatus described and illustrated in Specification 563,754.
Patent GB-411272-A (GB)
Title: Improvements in or relating to retorts for use in the low temperature distillation of carbonaceous material
IPC: C10B1/04
Filed: 1933-04-24
Abstract: 411,272. Retorts for low temperature carbonization. CARLTON MAIN COLLIERY CO., Ltd., ADDY, R., and GILL, S., Barnsley. April 24, 1933, No. 11953. [Classes 51 (ii) and 55 (i).] Retorts for low temperature distillation of coal, and of the kind in which a movable inner chamber forms with an outer fixed chamber a space for the charge, the inner chamber being lowered to discharge the carbonized material as in Specification 329,464, [Class 55 (i)], the inner and outer chambers B, A are made of flattened shape and the ends joined by semicircular or V-shaped portions. The exterior of the inner chamber is provided with longitudinal ribs B<3>, and the interior has longitudinal webs B<4> arranged to prolong circulation of heating gases from inlets B<6> to outlets B<7>. The inner chambers are carried by a platform B<1> which is moved up and down by hydraulic rams B<2>. Distillates are withdrawn through outlets A<4>.