baber/WOPTO huggingface dataset:
Patent GB-1116980-A (GB)
Title: Machine for pulverizing or surface-treating material
IPC: B02C17/16
Filed: 1965-07-06
Abstract: 1,116,980. Ball &c. mills; coating apparatus; mixing apparatus. SOUTHWESTERN ENGINEERING CO. 6 July, 1965 [16 March, 1965], No. 28690/65. Headings B1C, B2A and B2L. [Also in Divisions B3 and F2] A machine for grinding, or applying a coating to, material comprises a cylindrical container 6 supported on a platform 4 by a ring of springs 5 and vibrated at high frequency and low amplitude by means of eccentric weights 9 mounted on the shaft of an electric motor 8, the container being provided with grinding or other media and material to be ground or coated which are stirred by means operable at low frequency and high amplitude, the stirring means comprising rods 18 on a shaft 16 driven by an electric motor 15 and rods 22 on bars 20 depending from a circular plate 19 joined to a sleeve 17 driven by an electric motor 14, A pair of channel members 2 receive a pair of slidable channel members 11 to form housings in which are mounted lifting screws 26 journalled at their upper ends by means of brackets 27 secured to the members 2. each of the members 11 being provided with a nut 31 which rides on the screwthread of the corresponding screw 26. The lower ends of the screws 26 extend into gear housings 28 joined by a connecting shaft 29, one of the gear housings being connected to a motor drive 30. The members 11 are connected at their upper ends to a plate 12 which is connected by a bellows sleeve 25 to a removable cover 23 of the container 6. The grinding media comprises ceramic cylinders. In a modification, the container (32) Figs. 6 and 7 (not shown) is annular and contains a plurality of stirring devices (36) each comprising radially-extending rods (38) mounted on a vertical shaft (37) driven by bevel gears (40) from an electric motor (44). The container (32), which is supported on springs (33) supports an electric motor (34) on the shaft of which are mounted eccentric weights (35).
Patent GB-211910-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M9/06
Filed: 1922-10-21
Abstract: 211,910. Morris, M. C. Oct. 21, 1922. Spray carburettors. -A main air valve 17 is moved across the air passage 3, 4 and carries a tubular member 18 fitting loosely over the nozzle 5 as in Specification 198,026. The invention consists (1) in dispensing with the openings on the air inlet side of the tubular member described in the aforesaid Specification, and (2) in providing a valved passage for admitting air to the jet chamber. The nozzle 5 is held in position by a screwed plug 9 bearing against a flange 7 thereon, a second plug 13 closing the bore 10. The lower end of the main air valve is preferably cut away obliquely at 17 on the air inlet side. The tubular member 18 has an aperture 19 on the engine side thereof which is completely masked when the main air valve is closed. A circumferential groove 21 in the main air valve serves to reduce suction on the nozzle orifice when the valve is in the closed position. This object may also be achieved by providing a small hole on the air inlet side of the tubular member or a bore from the outer end of the main air valve. Air may also be admitted to the jet chamber by an automatic valve 24 located in a bore 25 and normally resting on a pin 26. The bore is in communication with the atmosphere through its lower end 27 and side openings 28. The ball valve cuts off the air through bore 27 when the suction in chamber 29 becomes sufficiently strong. The chamber 29 is also in communication with the atmosphere through another bore 31 under the control of a screwed valve 32 which permits of the action of the ball valve being regulated. The valve 24 may be dispensed with and the small hole and bore referred to above may be provided' with a valve. Specification 16302/12 is referred to. According to the Provisional Specification, the plunger type of valve 15 may be replaced by a butterfly valve connected directly or indirectly with the tubular member, and arranged preferably on the engine side thereof.
Patent GB-324988-A (GB)
Title: Improvements in and relating to the manufacture of rubber articles
IPC: C08J5/02
Filed: 1928-10-06
Abstract: 324,988. Dunlop Rubber Co., Ltd., Murphy, E. A., James, R. G., and Twiss, D. F. Oct. 6, 1928. Indiarubber, wrinkled.-Rubber articles obtained from aqueous dispersions by dipping, spraying, spreading electrophoresis, &c., are given a wrinkled or grained surface by bringing the unooagulated surface into contact with a liquid or liquids which effect coagulation and swelling of the rubber concurrently or consecutively. The rubber dispersion may be vulcanized or not, and may contain fillers, dyes, vulcanizing ingredients, synthetic rubber, waste, reclaim, factice, &c.. and may be concentrated, for example as described in Specification 290,313. Numerous modifications are described, viz. (1) an uncoagulated deposit is dipped into a solution of 5 parts of glacial acetic acid and 200 parts of benzene; dilution, e.g. with alcohol, decreases the effect; (2) the deposit may be dipped first into a solution of acetic acid and then into benzene; (3) a dehydrating agent, as described in Specification 303,544. may replace the coagulant; (4) carbon tetrachloride or butyl acetate may be used alone as both swelling agent and coagulant. The final product may be either hard or soft rubber, and the article may consist entirely of, or merely be coated with, rubber.
Patent GB-797576-A (GB)
Title: Polyurethane foams
IPC: C08J9/00
Filed: 1956-09-20
Abstract: The invention comprises a polyurethane foam containing 0.2 to 5 per cent by weight, based on the weight of the foam, of a tetra-lower alkyl thiuram disulphide or a di-lower alkyl-dithiocarbamate.  By "lower alkyl" is meant alkyl groups containing from 1 to 8 carbon atoms.  The foams are rendered resistant to attack by micro-organisms.  The foams can be the reaction products of polyisocyanate with hydroxypolyesters, hydroxypolyethers and hydrogenation products of polymeric ketones. The thiuram or dithiocarbamate can be mixed with the reactants, preferably with the hydroxy compounds, or can be applied in solution to the polyurethane foam.  The reactants may be mixed using the process described in Specification 769,680.  In Examples: (1) a mixture is prepared of an adipic acid/diethylene glycol/trimethylol propane polyester, tetramethylthiuram disulphide and an activator consisting of bis-diethylaminoethyl adipate, diethylamine oleate, castor oil sulphate, ricinoleic acid sulphate and water.  Toluene-2 : 4-diisocyanate is added and the mixture poured into a mould and allowed to foam; (2) zinc dimethyl dithiocarbamate is used in place of the thiuram; (3) in the process similar to (1) tetramethyl thiuram disulphide and butyl octyl adipate are added before the addition of the activator mixture.  The effect of the thiuram is not destroyed if mild oxidizing agents such as nitrobenzene, nitrophenol and peroxide are added; (4) a mixture of an adipic acid, diethylene glycol/trimethylol propane polyester, tetramethylthiuram disulphide, nitrobenzene and the activator mixture used in Example (1) is reacted with toluylene diisocyanate-1,2,4; (5) a mixture of a polyether of thiodiglycol and butane diol, tetramethyl-thiuram disulphide or zinc dimethyl-dithiocarbamate, and an activator mixture comprising diethaminoethyl adipic acid ester, diethylamine oleate, ricinoleic acid sulphate and water is reacted with toluylene-diisocyanate-1,2,4; (6) an isocyanate-containing polyether produced from tetrahydrofurane, chain-lengthened by reaction with toluylene diisocyanate-1,2,4 is mixed with tetramethyl thiuram disulphide or zinc dimethyl thiocarbamate and then reacted with an activator mixture consisting of dimethylbenzylamine, an emulsifier from hydroxydiphenyl and ethylene oxide, diethylamine oleate and water. For comparison there are described also dichlorodiphenylmethane, o-hydroxydiphenyl, dodecyl dimethylbenzylammonium chloride, boric acid, copper - 8 - hydroxyquinoline, benzylphenol and di- and tetra - chloro - dihydroxydiphenyl sulphides.  Treatment of the products of the invention with solutions of soap, soda, acetic acid, formaldehyde, cupric sulphate and hydrogen peroxide is also described.
Patent GB-1278504-A (GB)
Title: Capillary exchanger
IPC: B01D69/08
Filed: 1969-06-06
Abstract: 1278504 Diffusion membranes; dialysis apparatus CIBA-GEIGY AG 6 June 1969 [8 June 1968] 28828/69 Headings BIB and B1X [Also in Division B5] A membrane exchanger which may be used for dialysis, reverse osmosis, refrigeration, sterilisation, distillation, e.g. vacuum-multiflash desalination, or electrodialysis, comprises capillary tubes 201 arranged parallel to each other and to the casing 221, the tubes having at or near their ends auxiliary coatings 234 which are bonded by cast material 240 to form separating walls. The capillory tubes which carry fluid F 1  are individually surrounded by tubular channels 206 which are narrowed at their ends 206a, 206b to slow down flow of fluid F 2  therethrough and assist exchange.
Patent GB-854271-A (GB)
Title: Improvements relating to tube joints in pressure vessels
IPC: F16L41/08
Filed: 1959-08-24
Abstract: 854,271. Pipe joints. BABCOCK & WILCOX CO. Aug. 24, 1959 [Aug. 26, 1958], No. 28835/59. Class 99(1). The wall 13 of a pressure vessel, e.g. a header, is provided with a bore 14 and a counterbore 15, the latter providing a seat 16 having a surface normal to the axis of the counter-bore for engagement by a metal orifice plate 12 held against the seat by a tube 11 secured in a fluid-tight manner in the counter-bore by welding as at 18 to the wall 13.
Patent GB-888100-A (GB)
Title: Method and apparatus for the production of gaseous products of combustion
IPC: F02K7/12
Filed: 1959-08-24
Abstract: 888,100. Generating combustion products under pressure. TUVAL, M., and LEVY, M. Aug. 24, 1959 [Aug. 29, 1958], No. 28859/59. Class 51 (1). In a method of producing gaseous combustion products at high temperature and pressure, at least partially gaseous fuel is introduced under pressure into a combustion chamber wherein combustion takes place in a number of zones, combustion occurring after ignition by suitable ignition means or by spontaneous combustion when sufficiently preheated fuel is introduced into the chamber. Atmospheric air is drawn into each zone of the chamber by the suction effect created by the flow of fuel into the chamber and by the flow of the gaseous mixture of fuel and combustion products from the first zone to successive zones. In the apparatus shown in Fig. 1, a fuel pump or compressor 1 supplies fuel through pipes 2 and 3 to a preheater 5, fuel from the pipe 2 being introduced into the preheater through nozzle 4 and burned therein, fuel from the pipe 3 being pre-heated in passing through the coil 6. The pre-heated fuel is then introduced into the multi-stage combustion chamber 8 through injector 9, air being drawn into each zone of the chamber by the flow of fuel or combustion gases therethrough. The combustion gases discharge through outlet 10 at high temperature and pressure and may be used to drive a turbine 7 which drives the fuel pump or compressor 1. A combustion chamber is shown in Fig. 2, fuel being supplied by means of injector 21 and air being drawn in through inlet 23 which may be of Venturi form into the first combustion zone 22. Spontaneous combustion occurs in the zone 22, the amount of fuel burned being dependent upon the amount of air introduced. The mixture of combustion products and unburned fuel discharges through outlet 24 into the second zone 25, thereby drawing in a further quantity of air through inlet 26. The combustion products finally discharge through outlet 27. A five-zone combustion chamber is also described, fuel being introduced into the first zone at a temperature of 450‹ C. and at a pressure of 150 atmospheres, the final comhustion products issuing at a temperature of 600‹ C. and pressure of 65 atmospheres. Further quantities of air, fuel or a mixture thereof may be introduced into one or more of the zones. Water also may be introduced into the chamber. The combustion products issuing from the chamber may be used for preheating the fuel or for pre-heating the air which is to be drawn into the chamber. A grid may be disposed across the upstream end of a combustion zone, the grid having holes which converge in a downstream direction so that they afford a resistance to flow in the upstream direction. Gaseous fuels such as propane butane or producer gas may be used and they may be preheated or not.
Patent GB-948668-A (GB)
Title: Separator apparatus for sorting and counting metal or other bars and sections
IPC: B65G47/44
Filed: 1961-08-10
Abstract: 948,668. Separation of metal bars. A.B.G. Aug. 10, 1961, No. 28880/61. Heading B8A. Bars 7 are discharged by conveyer 8 and rolled down slope 9 on to arms 10 pivoted at 11. An operator wishes to lift a bar from arms 10 and to roll it down slope 12 on to discharge conveyer 13 and he is assisted by the provision of a plurality of wheels 4 each having arms 5, the wheels being carried by driven shaft 1. The arms 5 form a helical convolution around shaft 1 so that as the operator lifts the end of a bar upwards towards the arms 5 the bar is gradually caught by the rotating wheels and is urged upwards and over to fall down slope 12. Alternatively, the arms 5 may form straight lines and the shaft 1 may be positioned askew.
Patent GB-933297-A (GB)
Title: A method of, and apparatus for loosening ties arranged around sausage casings
Inventor: CLINE TEODOR BECKER
IPC: A22C11/00
Filed: 1961-08-10
Abstract: 933,297. Sausages; untying casings. TARMIMPORTEN A.B. Aug. 10, 1961, No. 28886/61. Class 49. In an apparatus for loosening the ties around the casing between sausages, a chain of sausages is freely suspended and advanced vertically through an aperture 9 in a wooden extension 8 (interchangeable to vary the aperture size) screwed to a lever 6 which is pivoted about a vertical shaft 5 in a bearing-block 4 and reciprocated in a substantially horizontal arcuate path by means of a rod 11 connected to the lever 6 and to a crank mechanism 13, 14 by spherical bearings 10, 12. The shaft 16 of the crank mechanism is journalled in a bearing-block 15 and carries a pulley 17 driven from an electric motor (not shown) by a belt 18. The assembly is mounted on a spring-supported plate 3. Each sausage, when within the aperture 9, rolls around the inner oval edge thereof and rotates relative to the other sausages. After leaving the aperture, it rotates in the opposite direction as the resilient sausage chain untwists. This constriction and stretching of the casing loosens the surrounding tie which is forced apart and falls away. The sausage chain is then advanced to a skin slitting machine.
Patent GB-408943-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H03C3/20
Filed: 1932-10-17
Abstract: 408,943. Wireless transmitting and receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Crosby, M. G. ; Riverhead, Long Island, New York, U.S.A.) Oct. 17, 1932, No. 28979. Convention date, Oct. 16, 1931. [Class 40 (v).] In an electrical circuit a condenser is constituted by an electric discharge tube comprising a glass gas-filled envelope 20, two or more electrodes 11, 12 positioned opposite one another within the envelope and adapted to have an electric discharge set up between them, and an electrically conductive member in the form of a band 10 outside the envelope and positioned intermediate the electrodes whereby the effective capacity depends on the discharge. In an example, Fig. 2, of the application of the condenser to phase modulation of a transmitting circuit, the carrier source 1 is coupled by a transformer 2 to an amplifier valve 3, the tuned-output circuit 4, 5 of which is connected by an amplifier AM to the aerial 6. A conductor 21 connects the anode of the valve 3 with a glow-discharge tube 20, one electrode 11 of which is connected with the anode of a modulating valve 9 through resistance 13, the other electrode 12 being directly earthed. A signal source such as a microphone 7 is transformer-coupled to the input of the valve 9. In another example, Fig. 3, remote control of the tuning of a receiving circuit at a station A is effected by movement of a potentiometer 14 at a station B which varies the voltage applied through the line L to the distant glow-tube condenser 20, thus varying the resultant capacity of the tuned circuit 17, 16. Specification 406,674 is referred to.
Patent GB-1507736-A (GB)
Title: Radio navigation equipment
IPC: G01S1/40
Filed: 1975-07-10
Abstract: 1507736 Radio navigation; radio direction-finding STANDARD TELEPHONES & CABLES Ltd 6 July 1976 [10 July 1975] 29040/75 Heading H4D To reduce the effect of multipath in radio navigation equipment, means are provided for scanning an array of aerials step by step a pair at a time such that, during each scan, the x and y orthogonal co-ordinates of the scanned aerials given by x 1 y 1  and x 2 y 2  satisfy the conditions that y - y 2  varies linearly within a said scan, x  1  - x 2  is constant within a said scan, and x, varies pseudorandomly between successive steps of a said scan, further means being effective at the completion of a scan to change x 1 -x 2  pseudorandomly. For a vertical guidance (elevation) array, there is a partially filled co-ordinate array, of m Î n possible positions for the q commutated aerial elements, associated with a horizontal array of p reference elements (p>m). Frequency f 1  is commutated to the co-ordinate array, in the same sequence for each scan a, b, c, etc., so that at each step of the scan a successively higher one of the q elements is energized, this being indicated by the location of the number 1 to 5 for the first five steps of the scan. An offset frequency f 2  is commutated to the p reference elements so that, within each scan, the numerical sequence of the energization of the reference aerials conforms with that of the array sequence in respect of the horizontal pseudorandom movement thereof, this being indicated by numerals 1a to 5a for scan a, 1b to 5 b for scan b, etc. The scanning format is equally applicable to an aerial array used in an "inverse Doppler" direction finding system, i.e. to DF receivers, as well as to Doppler transmitting beacons. Specifications 1,225,190, 1,234,541, 1,369,768, 1,413,686, 1,434,638 and 1,499,327 are referred to.
Patent GB-929974-A (GB)
Title: Process for preparing reinforced plastic compositions
IPC: B32B25/12
Filed: 1960-08-23
Abstract: A reinforced plastic composition is produced by preparing a polymer of a C4 to C6 conjugated diolefin, a synthetic polyisoprene or natural rubber, incorporating a reinforcing element and curing. Specified polymers are those of butadiene, hexadiene, isoprene, dimethyl butadiene, piperylene and methyl pentadiene and their copolymers with styrene, acrylonitrile, methyl vinyl ketone, p-methyl styrene and dimethyl styrene.  Cross-linking agents, e.g. vinyl toluene, styrene, halostyrenes, vinyl naphthalenes, alkyl acrylates and methacrylates, alkyl fumarates and allyl esters, e.g. diallyl phthalate, may also be present as may be catalysts such as dicumyl peroxide, ditertiary butyl peroxide, ditertiary butyl diperphthalate, tertiary butyl perbenzoate and benzoyl peroxide. A polyvinyl compound and a blocked phenol, e.g. 2-6-di-tertiary-para-cresol, may also be present.
Patent GB-1011088-A (GB)
Title: Improvements in and relating to vertical grinding machines
Inventor: LINDE LOTHAR
IPC: H04L12/423
Filed: 1964-07-15
Abstract: 1,011,088. Grinding. LEIPZIGER EISENUND STAHLWERKE. VEB. July 15, 1964, No. 29116/64. Heading B3D. A device for limiting the advance of a grinding wheel 2 comprises a freely rotatable ball 6 located in a transverse bore 4 of a cylindrical body 5 having a longitudinal bore 3, the body being arranged parallel to the plane of the grinding wheel, a light source 10 being arranged to send a beam through the bore 3 on to a photo-electric cell 11. The transverse bore 4 slopes downwardly towards the grinding wheel. The device is mounted on a support on the table of a grinding machine and is moved towards the grinding wheel 2 until the outermost part of the ball is in alignment with the surface of a finishing workpiece. The grinding wheel is then advanced, first fast and then slowly; when the wheel touches the ball the latter moves up the bore 4, interrupting the beam, automatically stopping the slow advance. The ball returns to its original position, and the grinding wheel is moved into contact with the workpiece 11. The ball may be of steel, hard metal or ceramic, and is retained by a narrowed end 7 of the bore 4 and a spring ring 8. The bore may be inclined in the direction of rotation of the grinding wheel.
Patent GB-968990-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: DAVIS JOHN CHRISTOPHER HAMMOND
IPC: H03M1/00
Filed: 1960-08-23
Abstract: 968,990. Pulse code modulation systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Aug. 23, 1961 [Aug. 23, 1960], No. 29138/60. Heading H4L. Hyperbolic encoding or decoding is effected, using a linear encoder or decoder, by varying the value of the comparison current or voltage supplied thereto in accordance with the signal input. Encoding. A signal current S2, Fig. 2, to be encoded is fed by a buffer circuit TR1, TR2, both to a transistor TR3 and to the linear encoder LE2. In combination with resistors R1, R2 the transistor TR3 determines the proportion of the signal current which is added to the reference (comparison) current supply SC before it is fed to the encoder. The circuit of Fig. 2 is suitable for inputs of one polarity only. For input signal currents of either polarity, Fig. 4, the input signal I passes through one or other of transistors VT1, VT2 depending on its polarity. VT1, if operative, reverses, with VT5, the direction of the current so that the signal current passed by either VT1 or VT2 arrives at the bases of transistors -VT6, VT7 always with the same polarity. VT7 passes this current directly to the comparator of a standard linear feedback type encoder, while VT6 passes this current to a transistor VT8 which, as in Fig. 2, functions with resistors R6, R7 to pass a current proportional to the input signal through a resistor R8. The normal comparison voltage E5 fed by the emitter follower VT9 to the encoder is thus modified by the voltage drop across R8, i.e. proportionally to the input signal. The resistors R9-R12 of the encoder are binarily related and the associated currents are switched by the pairs of transistors VT10-VT 17 controlled in known manner by toggles M2-M5 (not shown). Toggle M1 which is operative or not dependent on which of VT1, VT2 is operative, functions as a sign toggle. Other methods to enable signals of both polarities to be accepted are mentioned in the Specification. A signal voltage (single polarity) encoder is also described, Fig. 3 (not shown). Decoding, Fig. 5. Binarily related conductances G, 2G, 4G . . . are connected according to the incoming code in parallel with a fixed conductance g whereby the reference (comparison) current I provides a comparison voltage V, I at the decoder equal to where n is g+NG -- nG the amplitude level number represented by the digits presented to the decoder and N the maximum value of n.
Patent GB-583309-A (GB)
Title: Improvements in or relating to electric impulse producing apparatus
IPC: H03K3/78
Filed: 1944-05-19
Abstract: 583,309. Pulse generating circuits. NATIONAL CASH REGISTER CO. May 19, 1944, No. 29206/46. Convention date, May 26, 1943. Divided out of 583,266. Drawings to Specification. [Class 40 (v)] In a pulse generator, at least three valves are connected in an endless chain so that when one valve conducts the valves become conducting in sequence, each valve causing the next to conduct and the preceding valve to cease conducting, a conductor common to all the valves being given a pulse each time a valve conducts. The particular description is identical with part of that of Specification 583,266.