baber/WOPTO huggingface dataset:
Patent GB-715601-A (GB)
Title: New or improved apparatus for the pneumatic sorting and/or purifying of granular bulk materials, especially grain
IPC: B07B7/04
Filed: 1952-12-24
Abstract: 715,601. Pneumatic separating. FILTERWERK MANN & HUMMEL GES. Dec. 24, 1952 [Dec. 29, 1951], No 32733/52. Class 117 In a pneumatic sorter for grain &c. the material is introduced through an annular upper opening in the innermost of a plurality of annular chambers and then directed outwardly by an inclined shoulder into a second annular shaft up which air is passed to carry off the lighter components. the latter being deflected outwardly by an annular shoulder and carried downwards to a collecting chamber while the air is again directed upwardly and discharges through an outer annular chamber. The installation described comprises a granule separator A feeding grain to the pneumatic sorter C and dust-laden air to a separator B which provides clean air for the sorter, the granule separator being connected to the pneumatic conveyer pipe line 1 carrying grains and dust. In the lower part 2 of the separator A a horizontal channel 53, connected to the inlet pipe 1. is of U-shaped crosssection and is bent upwards so that the grains are thrown upwards against a conical baffle surface 54 of a body 51 which forrns an annular gap 3 with the outer casing The cross-section of the gap IS equal to that of the lower casing 2. The grains after rebounding from the surface 54 drop into the sorter through a cone 5 and dust-laden air is passed over pipe 43 to the dust separator B which feeds clean air to the sorter C through Pipe 24 and dust to the container F. The grain entering the sorter standpipe 6, which has a glass inspection wall 7 falls into a bowl 27 having a central opening 64 and carried by a rod 26 from a spring-loaded cone 25 which closes the cutlet cone 8. Pressure of the grain on cone 25 depresses it to allow an annular stream of grains to drop on to the frusto-conical shoulder 56 which deflects it outwardly into the annular shaft 9 in which an upward flowing air current is encountered. Whole grains drop through a connecting member 11 to container D, while crushed and half grains are carried through an upper annular space 12 into a pressure-drop space 13, from which they are deflected downwards by cone 8 into a further annular shaft 59 and drop through a connecting member 15 to container E. The air passes the cyindrical screen 16 into an outer annular chamber 60 and thence to the outlet pipe 17. To regulate the air velocity in the sorting chamber 9, 12, a by-pass duct 18 is provided and throttle valves 19, 20 in this duct and the main air duct 24 respectively are arrranged to 'be operated together to open one duct when the other is closing and vice versa.
Patent GB-1100158-A (GB)
Title: Control arrangement incorporating bistable switches for a stage of a switching network
IPC: H01H67/26
Filed: 1965-07-30
Abstract: 1,100,158. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 30 July, 1965 [5 Aug., 1964], No. 32752/65. Heading H4K. In a multistage relay switching network, like-numbered inlets of each matrix in a stage are connected via a bistable switch to one side of a battery and like outlets are similarly connected to the other side of the battery. Crosspoint operation is effected by triggering the two relevant row and column (inlets and outlets) switches simultaneously with actuation of a matrix selector. Matrix construction, Fig. 3.-Each row of crosspoints is provided with a common winding (which may actually consist of individual windings connected in series) which extends from an individual inlet e.g. 1 to a common row outlet Cr, a series decoupling diode ED and a shunt resistor R also being provided for the winding. Similarly, each column winding extends from common column inlet cc to an individual column outlet 1 . . . n. A reversing switch u comprising a winding uz controls the direction of current flow through the column windings and hence determines whether a crosspoint is to be operated or released. Switching stage construction. Fig. 1.-Three matrices, similar to that of Fig. 3, are arranged as shown with like numbered individual row inlets e.g. 1 connected via an S.C.R., e.g. S11 to one pole of current source Stq and with like numbered column outlets e.g. n connected via an SCR such as S2n and switch K to the other pole of source Stq. In each matrix, the common row outlet is connected via another SCR such as S31 in matrix Kbl to the common column input. By simultaneously triggering SCR's, S11, S31 and S2n, the nth crosspoint in row 1 of the first matrix may be actuated or released in dependence on the position of the reversing switch u. The crosspoints are preferably self latching (magnetic or mechanical) so that after operation, the SCR's may be cut-off by opening switch K. The electronic switches may alternatively be thyratrons or bistable triggers. Alternative switching stage construction. If each stage comprises as many as say 9 matrices, the number of matrix selecting SCRs (S31- S33 in Fig. 1) is reduced by considering the stage as a 3 x 3 array of matrices whereby only 6 SCRs are then required for unique selection of a matrix (Figs. 2 and 4, not shown).
Patent GB-534069-A (GB)
Title: Improvements in or relating to mechanical shavers and hair cutters
IPC: B26B19/04
Filed: 1939-12-23
Abstract: 534,069. Shaving appliances. WILKINSON SWORD CO., Ltd., RANDOLPH, H. B., and SINCLAIR, R. W. Dec. 23, 1939, No. 32841. [Class 131] In a dry shaver the perforated guard plate is secured to a mounting plate which is detachably secured to the shaver frame, the cutter blade is provided with transverse cutting ridges and is reciprocated by a lever controlled by two compression springs and vibrated by an electromagnet. The electromagnet comprising a core 8, 9, 10 and coils 11, 12 is supplied with A.C. current and has pivoted thereto a lever 18 to which is secured the armature operating against compression springs 24, 25 the periodicity of the lever &c. being tuned to that of the A.C. current. The spherical end of the lever engages a slot in the cutter plate for driving purposes, the cutter plate, which is curved, being provided with cutting ridges formed by cutting helical grooves in the surface of the plate. A U- shaped washer 36 and spring 35 serve to press the cutter plate against the guard plate 49. The curved guard plate 49 is secured to a mounting plate 48 secured to the shaver frame by latches 42, 43 operated by finger pieces 46, 47. A rubber washer 34 is provided to prevent cut-off hair from entering the interior. Specifications 523,032 and 524,471 are referred to.
Patent GB-1477901-A (GB)
Title: Substituted-halide silver halide emulsions and products containing same
IPC: G03C8/06
Filed: 1974-07-25
Abstract: 1477901 Photographic silver halide emulsions POLAROID CORP 25 July 1974 [27 July 1973] 32947/74 Heading G2C Photographic silver halide emulsions containing silver iodobromochloride grains having iodide in the centre of the grain are made by conversion of a silver iodochloride emulsion, prepared by reacting a water-soluble silver salt with water-soluble chloride and iodide salts and digesting the silver iodochloride grains, by treatment with an aqueous solution containing bromide or bromide and iodide ions so that a part of the chloride anion in the silver iodochloride grains is converted to bromide or bromide and iodide anions, the making, digesting and chloride replacement stages being conducted at 60‹C at least. The silver iodobromochloride grains preferably contain 1-50 mole per cent chloride, 1-10 mole per cent iodide and the remainder bromide and have a mean diameter of 0À7 to 1À5 microns, at least 80% of the grains having a diameter which is within 40% of the mean diameter. The silver iodochloride grains may be formed by reacting silver nitrate with chloride and iodide salts in aqueous media, digesting and then converting to the iodobromochloride grains without isolation. The emulsions are especially suitable for making materials for the silver salt diffusion process, and are preferably coated so as to form a silver halide emulsion layer substantially free of overlapping silver halide grains i.e. having substantially none of the grains wholly or partly beneath other grains.
Patent GB-191257-A (GB)
Title: Telephone systems
IPC: H04B3/14
Filed: 1921-12-08
Abstract: 191,257. Western Electric Co., Ltd., (Western Electric Co., Inc.). Dec. 8, 1921. Loading circuits to improve transmission; party-line systems and apparatus.-In a telephone system, for example, a train-despatching system, comprising a dispatcher's substation DS and a plurality of identical way-stations S<1> - - Sn bridged at frequent intervals across a single line, the line is uniformly loaded with series inductance 10 and means are provided for preventing the formation of standing waves in the line. For this purpose, the line is terminated in an impedance equal to the characteristic impedance of the whole line, which terminating impedance may be inserted by modifying the transformers 16<1>, 17<1> of the last way-station Sn, Fig. 1, or, preferably, by shunting the station S<n> by a separate impedance 40, Fig. 2. Each way-station comprises a transformer having four windings 16, 17, 18, 19 associated with condensers 28, 30, 32 of different values. A key 25, when in its normal position, connects windings 16, 17 in series with condenser 30 across the line, and windings 18, 19 in series with condenser 28 and receiver 20. When key 25 is depressed, for speaking, windings 17, 19 are cut out, winding 16 is in series with condenser 32 across the line, and transmitter 21 and receiver 20 are each in parallel with winding 18. The Specification contains directions for calculating the characteristic impedance of the line, and gives examples of suitable values for the electrical constants of the loading coils and the waystation apparatus. In most cases the impedance 40 may be pure resistance.
Patent GB-1199407-A (GB)
Title: Insulator.
Inventor: BENT JAMES
IPC: H01B19/00
Filed: 1966-07-22
Abstract: 1,199,407. Synthetic resin compositions. H. CLARKE & CO. (MANCHESTER) Ltd. 24 July, 1967 [22 July, 1966], No. 33014/66. Headings C3B, C3P and C3R. [Also in Division H1] A method of preventing electrical arcing comprises locating an insulator moulded from an organic binder and basic magnesium carbonate as the major filler in a position liable to arcing. Specified binders are unsaturated polyester, epoxy and melamine-formaldehyde resins; the insulator may also include a reinforcing filler, e.g. glass fibre or asbestos, an additional filler, e.g. clay, an internal lubricant, e.g. zinc stearate, and a pigment. In examples insulators of unspecified size or shape are moulded from (1) and (2) a t-butyl perbenzoate catalysed unsaturated polyester/styrene resin, basic magnesium carbonate, zinc stearate, grey pigment, chopped glass fibre and (2 only) hydrated alumina; and (3) melamine-formaldehyde resin, basic magnesium carbonate, asbestos, lubricant and pigment.
Patent GB-645027-A (GB)
Title: Liquid flow meters
IPC: G01F3/18
Filed: 1947-12-15
Abstract: 645,027. Pistons and piston rings. HEJDUK, F., and NEUMANN, J. Dec. 15, 1947, No. 33052. Convention date, Jan. 25, 1939. [Class 122(i)] [Also in Group XXIX] In a liquid flow metor the pistons are each formed with a groove containing two multi-part non-resilient packing rings 25 and an expansion split ring 29. The pistons may be formed of two parts to facilitate insertion of the rings 25, 29, and springs 29<SP>1</SP> compress the rings 25 together. In a modification the springs 29<SP>1</SP> are omitted.
Patent GB-1511758-A (GB)
Title: Dispensing container
IPC: B65D47/26
Filed: 1976-08-10
Abstract: 1511758 Dispensing container DART INDUSTRIES Inc 10 Aug 1976 [3 Oct 1975] 33169/76 Heading B8T A container has a neck portion 20 provided with a plurality of indentations 36 around the inner periphery to co-operate with channels 52 on the outer face of ring 50 depending from the inner top wall of a closure cap so that the cap may be rotated to a position in which the indentations 36 align with the channels 52 and orifices 17 through the top wall of the closure cap to enable dispensing of material from the container. In the closed position the orifices 17 are closed by the top surface 30 of the neck portion 20. Rotation of the cap relative to the container may be limited by a projection depending from the cap and running in a groove in the outer periphery of the neck portion 20.
Patent GB-408382-A (GB)
Title: Improvements in or relating to folding tables and the like
Filed: 1932-11-24
Abstract: 408,382. Hinges for furniture. VAUGHAN, E., Field House, Clent, near Stourbridge, Worcestershire. Nov. 24, 1932, No. 33213. [Class 65 (ii).] A hinge-joint for an article of furniture comprises two channel members mounted face to face on a pivot pin, one of the members having a projection and the other a spring latch mounted, on a pivot pin parallel to that of the joint, between the walls of the channel and shaped to engage the projection on the other member to lock the members in a predetermined position. The application to the leg of a folding table is shown. A channel member d fixed on the leg is connected by a pivot pin d<2> to another channel member a<2> fixed on the table frame A so that when the leg is folded the two channel members face one another. A spring catch b is pivotally mounted on a pin a<3> carried by the member a<2> parallel to the pivot pin d<2> and is adapted to engage a projection d<3> on the member d, as shown, to hold the leg in the unfolded position. A wire or cable b<4> is provided for releasing the catch.
Patent GB-1075248-A (GB)
Title: Power operated work piece and pattern holding apparatus for routing machines
IPC: B23Q35/06
Filed: 1964-08-14
Abstract: 1,075,248. Copy-milling. ONSRUD MACHINE WORKS Inc. Aug. 14, 1964 [Nov. 15, 1963], No. 33341/64. Heading B3K. A router comprises a workpiece and patternholding fixture and a programme mechanism for moving a workpiece 49 along a path prescribed by the pattern 46 by energizing first and second reversible power units 31 (32), 37 (38), alternately, the power units being positioned to move the table in linear directions at rightangles to each other. A bed plate 21 can be adjusted vertically by a hand wheel 22 and carries brackets 24 supporting rods 26 on which slide blocks 27 attached to a plate 28. The plate carries a bracket 35, attached to the rods of hydraulic and pneumatic cylinders 31, 32, and a rail 30 on which slides a block 36. The block 36 carries an angle bar 42 to which is bolted the pattern block 46 having a guide groove 48, Fig. 2, on its under-surface. The block carries pneumatic clamps 50 to secure the workpiece 49. The guide-groove is engaged by a roller 53<SP>1</SP>, Fig. 9, which may be retracted by a lever operated by an hydraulic device 54. In the groove are mounted a number of dogs 59 which may engage the end of a plunger 57 to actuate an hydraulic valve 56, which, by way of a speed control valve 105<SP>1</SP>, advances a ratchet wheel 65 attached to a cam drum 60. The drum has a series of grooves in which dogs are positioned to actuate pneumatic valves 81-84 and hydraulic valves 85-88 in a given sequence. In operation, the hydraulic and pneumatic means are used to hold the follower 53<SP>1</SP> against one side of the guide groove. Thus, an hydraulic ram is used to move the pattern in one direction while the pattern is urged in a direction at right-angles thereto by a pneumatic ram. Meanwhile, the other two rams are allowed to move freely. The speed of movement is controlled by a valve 99.
Patent GB-1392746-A (GB)
Title: Process for sizing cellulose fibres
IPC: D21H17/11
Filed: 1972-07-17
Abstract: 1392746 Sizing cellulose fibres; sizing paper KEMANORD AB 17 July 1972 [15 July 1971 16 Nov 1971] 33430/72 Headings DIP and D2B A process for sizing cellulose fibres or cellulose fibre containing material comprises treating said fibres or material with a compound or mixture of compounds having the formula R 1 R 2 NCOCl where R 1  is an organic hydrophobic hydrocarbon group containing from 8 to 40 carbon atoms which is optionally substituted provided that the substituent (s) cannot be a carbomoyl halide group or groups and does not or do not adversely affect the sizing process and R 2  is hydrogen, a C 1 -C 7  alkyl group or a group as defined for R 1 . One or more of the compounds may be dispersed in water with on emulsifier e.g. polyethylene imine, polyimide, cationic starch cationic polyacrylamide, anionic polyacrylamide, stearylamine HCl, distearylamine HCI, dimethyldistrearylammonium chloride or a nonionic emulsifier. The fibres may be in the form of an aqueous suspension, or in the form of board, or as mixed with other material such as semisynthetic paper containing plastics materials. In example 1 paper sheets are sized with a benzene solution of the carbamoyl chloride. In examples 2-5 aqueous dispersions are used to size paper. In examples 6-9 an aqueous dispersion is used to size cellulose fibres in aqueous suspension and the suspension drained to form paper sheets or boards. Exemplified substituents R 1 /R 2  are CH 3 /C 16 H 33 , C 18 H 37 /C 18 H 37 , C 16 H 33 /cyclohexyl, C 18 H 37 /phenyl CH 3 /C 17 H 37 -O-(CH 2 ) 3 , CH 3 /C 10 H 21 , C 12 H 25 /C 12  H 25  and CH 3 /C 14 H 29 . R 1  and R 2  may contain ether, carboalkoxy, aryloxy, arylalkyloxy/keto and tertiary amide groups.  Preferably 0.001 to 5% by wt. of fibres of the sizing compound and 0.1 to 10% of emulsifier are added to the fibrous suspension or impregnated onto the fibrous sheet.
Patent GB-366579-A (GB)
Title: Improvements in or relating to bathing caps and fastening means therefor
IPC: A42B1/12
Filed: 1930-11-06
Abstract: 366,579. Bathing caps. COW & CO., Ltd., P. B. ani COOMBER, C. RENTON-, 46, Cheapside, London. Nov. 6, 1930, No. 33446. [Class 63.] An indiarubber or like bathing cap is provided internally with one or more ducts or channels running substantially parallel to and close to the finished edge of the cap, each channel serving as a trap for any water penetrating past the edge of the cap. An improved chin strap is provided. The space between the edge of the cap and the first duct 1, and between the ducts if there is more than one, is hollowed or grooved so that suction is created to keep the cap in position. These hollows may be continuous or broken. A continuous or broken spring wire may be embedded in the edge of the cap. A strap fastening for the cap comprises one member having two or more slots 9 and a member 7 provided with scallops which are shaped to fit the slots. One or both members may be provided with raised locking knobs or protuberances 12.
Patent GB-1397755-A (GB)
Title: Synchronisation of a radio signal receiver
IPC: H04J3/06
Filed: 1972-07-18
Abstract: 1397755 Multiplex pulse signalling PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 July 1972 [21 July 1971] 33550/72 Heading H4L Three successive frames R1, R2, R3 constituting a (t.d.m.) superframe contain identical synchronizing words S1 S2, S3 which are compared bit-for-bit in a majority decision circuit to eliminate errors. The frames may be used in a message-sending paging system. Each frame contains five time channels (Fig. 2, not shown) one of which S1-S3 is a synchronizing word, and four of which A1-D3 are for data. Each of the latter has a 15-bit address followed by a five bit information signal. The second frame R2 is inverted for improved insensitivity to interference, the inversion of the second synchronizing word R2 being utilized in superframe synchronization. The received signal, Fig. 1, is amplified 11, mixed 13, filtered 14, amplified 15 and frequency discriminated 16. Clock regenerator 18 controls a bit regenerator 17 whose output feeds two cascaded 100-bit shift registers 22, 23. An inverter 25 applies the inverted second frame R2 of a received signal to the majority decision circuit 24 while the first R1 is applied from register 23, and the third R3 is applied directly. The majority gate contains three AND gates 26, 27, 28 and an OR gate 29 whose output assumes the state of the majority of the inputs to 24. An erroneous bit value in any frame of the received signal is thus ignored. The single corrected frame thus derived from the three received frames is then applied to a 15-bit shift register 30 which in turn feeds a 5-bit register 31. Register 30 thus provides the 15-bit addresses for time channels A to D, these being decoded at 32; and register 31 provides the information bits for each channel A to D and feeds them to a message buffer store 33. Both registers give a combined 20 bit output to a pattern recognition circuit 20 which looks for the synchronizing words S1-S3. Circuit 20 may be a digital filter with a variable decision threshold. A three stage counter 19 (mod 20, mod 5, mod 3) counts clock pulses from 18 and with a logic circuit 21, controlled by the frame synchronizing word pattern recognition circuit 20, effects synchronization of the received signal. An AND gate 35 responds to a signal from the counter 19 in A3, B3, C3, D3 time, and to a signal from the address decoder 32, to operate a flip-flop 36, which makes the buffer store 33 pass its information to a display device 34, and also operates an acoustic transducer 37.
Patent GB-880830-A (GB)
Title: Improvements in liquid-fuel supply systems
Inventor: PEARSON KENNETH WHITE
IPC: B64D37/12
Filed: 1956-11-02
Abstract: 880,830. Pipe couplings; forcing liquids by gaseous pressure. EXACTOR Ltd. Feb. 3, 1958 [Nov. 2, 1956], No. 33588/56. Classes 99(1) and 102(2). For connecting a removable, auxiliary fuel tank to a main fuel supply system through a number of interfitting duets, a unit has a corresponding number of duct components 1, 2 each forming one of the elements of a spigot and socket detachable connection which element is dimensioned to receive with a large degree of lateral tolerance the other element on external ducts, and the ducts on the unit are fitted with self-closing valves 5, 19 operated by the other or external ducts through co-operating members, one of which has a relatively large lateral extent to enable the other to co-operate with it despite misalignment within the lateral tolerance between the ducts. As shown the unit comprises a metal body providing parallel ducts 1, 2 connected by a transverse branch 3, the duct 2 being fitted with a hollow transfer piston 4 formed by an extension of a cut-off valve 5 the conical seat 6 of which co-operates with a conical seating 7 in the bore of the duct ; the valve is biassed to the closed position thereof by a spring 8, and the seat 6 is recessed to receive a rubber sealing ring 9. An extension 9a of the valve carries a flat, metal spider 10 forming a backing for a rubber, sliding, sealing ring 11 arranged to be engaged face-on by the end of a duct 12 on the auxiliary tank 14. The duct 2 is extended to form a socket the bore of which is greater than the diameter of the duct 12. Openings 16 in the piston 4 enable fuel to pass from the tank 14 to a pipe connector 17 when the valve 5 is unseated, at this time the transfer branch 3 being closed so that air under pressure is delivered to the tank past a valve 19 in the duct 1. The valve 19 comprises a ring forming a piston slidable in a socket and is reinforced by a metal ring 19<SP>1</SP> ; bonded to the latter is a rubber ring 23 which is seated by a spring 20 against a conical face 22 on a fixed stem 18. The end of the duct 13 on the tank 14 and which bears on the ring 23 has an outer diameter smaller than the bore of the socket on the duct 1. Removal of the tank 14 allows the valves to close and compressed air passes from the duct 1 to the duct 2 and thence to a main tank to displace fuel therefrom. In a modification a sealing ring 24, Fig. 3, is mounted on the duct 12 and engages a metal component 25 having a separate sealing ring 26 slidable in the duet 2, and the sealing ring 23 is engaged by a narrow rubber ring 27 on the duct 13.