baber/WOPTO huggingface dataset:
Patent GB-296799-A (GB)
Title: Improvements in party line arrangements for telephone systems
IPC: H04Q5/24
Filed: 1927-05-09
Abstract: 296,799. Wehren, E. May 9, 1927. Automatic exchange party-line systems.-The telephone instruments of the substations I, II, on a two-party line are associated with the line by oppositely-polarized high-resistance bridged relays RI, RII, which are of the type which only return their armatures when excited by a current in the opposite direction. If, for example, subscriber I initiates a call, a momentary earth connection E at his switch-hook operates relay RI to connect his instruments to line whilst relay RII is excited in the opposite direction so that the instruments at station II are disconnected and short-circuited. The momentary earth connection also energizes line relay Lr1 which locks and starts up a call-finder IAS. When the calling line is found, relays B, Tr, operate, the latter preventing the operation of relays RII, Lr2, in case subscriber II removes his receiver during the conversation.
Patent GB-1472943-A (GB)
Title: Batch weighing system
IPC: G01G13/285
Filed: 1974-03-20
Abstract: 1472943 Repetitively weighing a pre-selected weight of bulk products HOUSTON CONTROLS SYSTEM Inc 20 March 1974 12483/74 Heading G1A In a force balance device for repetitively weighing a pre-selected weight of bulk products that are transported to a scale hopper 24 by means of a vibratory feed device 20, the deviation of the scale beam 30 from the horizontal is measured, Figs. 2, 3, by a stationary light source 122 illuminating a pair of detectors 128 via a stationary apertured screen in combination with a movable slit screen 124 attached to the beam. The outputs of the photo-cells 128, which are proportional to the beam's displacement is applied via an amplifier 44 to an electric motor 42 in the form of a "moving coil loudspeaker arrangement", whose coil 140 is attached to the beam. The amplifiers 44, 56, and 58 and their associated resistors are designed so that the beam is substantially maintained horizontal. Additionally the induced e.m.f. that appears across the coil whenever the beam is displaced is used to provide a further feedback signal via amplifier 58 which is proportional to the arm or coil velocity. This enables the motor to provide the equivalent of "viscous damping" to the beam. The viscous damping signal appears across resistor 59 and is summed with the voltage due to the charge in position across the resistor 46. The signal from the amplifier 44, which is proportional to the weight in the hopper 24, is fed via a 60Hz filter to a differential amplifier 72 which compares the hopper weight signal with the output of a D/A converter 74. When the inputs to the amplifier 72 are equal, the amplifier 72 turns off the feeder 20 and initiates a time delay 76 that controls a ramp generator 78. The ramp generator signal feeds two sets of logic circuits each associated with an "up/down counter" 94 or 104. The circuit associated with counter 94 uses differential amplifiers, an exclusive OR gate 88 and an AND gate to compare the weight signal with "a pre-selected signal" from a potentiometer 98. If there is a discrepency, pulse signals from a clock 92 are gated via AND gate 90 to the up/down counter 94 to effect readjustment of the D/A converter 74. In a similar fashion the speed of the feed device 20 is maintained at the maximum rate for the system by using a logic circuit to compare a pre-selected percentage potentiometer 98 signal with the output of the D/A converter 74.  The circuit shown in Fig. 1, is explained in greater detail Figs. 4-7 (not shown) including an arrangement to terminate the operation of the product feeder 20 at a time before said pre-selected weight of the batch is in the scale hopper 24, to allow for the product flowing at the time of termination, thus ensuring that the final weight in the scale hopper is the pre-selected weight.
Patent GB-781751-A (GB)
Title: Improvements in or relating to power-assisted steering gear for mechanically-propelled vehicles
IPC: B62D5/24
Filed: 1952-05-16
Abstract: 781,751. Vehicle power steering. BISHOP R., JOHNSTON, R. H., WHITLOCK, G. B. R. and JOHNSTON, K. J. R. May 18, 1953 [May 16, 1952], No. 12492/52. Class 79(5) [Also in Group XXIV] A vehicle steering gear comprises a steering shaft 47 connected to the steering wheel and carrying a rotary, cylindrical valve member 40, a screwed shaft 14 connected to the shaft 47 by a spring-centred, rotary, lost-motion connection 51, and a nut 11 on the shaft 14 integral with a piston 27. The nut is connected by a link 9 and crank 4 to an output shaft 3. The lostmotion connection is such that the initial part of the movement of the steering shaft 47 turns the valve member 40 to place one end of the cylinder 1 in which the piston 27 reciprocates in communication with a pressure fluid supply chamber 42 and the other end of the cylinder with an exhaust chamber 43, the valve member and a surrounding sleeve 29 having radial drillings for this purpose. The consequent fluidpressure bias on the piston assists further rotation of the steering shaft, after the lost-motion has been taken up, to rotate the shaft 14. The part of the lost-motion connection fixed to the shaft 14 has radial extensions 53 engaging the sleeve 29 whereby the further rotation of the steering shaft 47 after the lost-motion is taken up does not result in movement of the valve member relative to the sleeve. The exterior of the sleeve has a circumferential groove 30.....35 for each radial drilling to place the latter permanently in communication with the corresponding port in the casing, i.e. the inlet and exhaust ports D, A and four other ports connecting with the ends of the cylinder. The piston 27 may have a small through passage to permit actuation in the event of failure of the pressure fluid supply. Specification 745,202 [Group XXIX] is referred to.
Patent GB-541031-A (GB)
Title: Improvements in cardboard and like boxes or cartons
IPC: B65D5/36
Filed: 1940-08-02
Abstract: 541,031. Cardboard &c. boxes. PETRUSHKIN, Ltd., M., and PETRUSHKIN, M. Aug. 2, 1940, No. 12533. [Class 18] A cardboard &c. box of which the bottom 2 and sides 5 collapse inwardly is formed from three blanks, one of which constitutes the front 3, bottom 2, back 1 and lid 4 and the others constitute the two ends 5, the ends 5 having marginal extensions 6, 7, 8, 9 and the lid being creased at 19 so that it too can fold. The bottom folds about creasings 12 and the ends 5 and extensions 9 about creasings 13. The front may have a " window " aperture which may be covered with transparent flexible material and the lid may have a cut-out to form a display panel.
Patent GB-491673-A (GB)
Title: Improvements relating to manganese steel
IPC: C22C33/02
Filed: 1937-05-03
Abstract: Shaped articles of Hadfield manganese steel are made by mixing powders containing respectively iron and manganese (i.e. pure iron, pure manganese, ferromanganese or oxides of iron and manganese) causing the particles to cohere under pressure, heating, e.g. at 1500-2000 DEG  F., if necessary in a reducing atmosphere so that the particles remain unalloyed but coalesce, cooling, shaping, and heating, e.g. at 2250-2650 DEG  F., if necessary in a reducing atmosphere so that the particles alloy. The final alloy should contain 7-20 per cent of manganese and 0,47-2 per cent of carbon and may also contain up to 20 per cent of one or a mixture of two or more of the metals molybdenum, tungsten, chromium, and vanadium, as well as sulphur, phosphorus, and silicon.  The starting-materials should therefore contain sufficient of these substances to provide the desired proportions. In the case of molybdenum, tungsten, chromium, and vanadium the starting-materials may be the carbides of these metals.
Patent GB-460866-A (GB)
Title: Improvements in wide strip rolling mills
IPC: G03B21/20
Filed: 1936-05-04
Abstract: 460,866. Rolling. SCHLOEMANN AKT.-GES. May 4, 1936, No. 12599. Convention date, May 9, 1935. [Class 83 (iv)] A metal slab, to make strip is pushed from a furnace 10 and repeatedly reduced in a universal roughing mill 1 and then transferred by a conveyer 3<11> and transverse conveyer 13 to a continuous reheater 12 whence another conveyer 8<1> transfers it to repeat passes through a finishing mill 7 after which it is coiled at 14 ready for cold rolling. The mill 1 may be a universal 3-high mill with a tilting table 2 and a conveyer 3<1> at each side to pass the work back or it may be a reversing mill. The finishing rolls 7 may also be 3-high. A motor 6 drives rolls 1 and 7.
Patent GB-1334814-A (GB)
Title: N-sulphenylated carbamates their manufacture and their use as insecticides acaricides and fungicides
IPC: C07D317/24
Filed: 1972-03-17
Abstract: 1334814 N-sulphenylated carbamates BAYER AG 17 March 1972 [19 March 1971 9 Oct 1971] 12628/72 Heading C2C Novel compounds of the general Formula I in which X is Cl, F or Br; n is 0, 1 or 2; R<SP>1</SP> is C 1-4  alkyl, R<SP>2</SP> is C 1-3  alkyl, C 1-3  alkoxy, halogen or nitro; and R<SP>3</SP> is a grouping of formula in which Y is O or S, Z is O or S, and R<SP>4</SP> and R<SP>5</SP>, which are the same or different, are C 1-6  alkyl, alkenyl or alkynyl radicals, or form part of a 5- to 7-membered saturated heterocyclic ring containing Y and Z as hetero atoms, in which case R<SP>4</SP> and R<SP>5</SP> can also be substituted by C 1-6  alkyl or alkoxy, halogen and/or nitro, may be prepared by reacting an N-sulphenylated carbamic acid fluoride of the general Formula II with a phenol of general Formula III where M is hydrogen or an alkali metal, in the presence of an acid acceptor if M is H. The novel compounds I exhibit insecticidal, acaricidal, and fungicidal properties.
Patent GB-365444-A (GB)
Title: Improvements in cop winding machines
IPC: B65H54/14
Filed: 1931-04-29
Abstract: 365,444. Stop motions for cop winding machines. MASCHINENFABRIK SCHWEITER AKT.-GES., Horgen, near Zurich, Switzerland. April 29, 1931, No. 12655. Convention date, June 30, 1930. Addition to 353,321. [Class 120 (ii).] In a cop winding machine as claimed in the parent Specification, having a rotating and reciprocating spindle and a thread-guide given a supplementary movement by a cam device, the outwardly directed supplementary movement of the thread guide is used to operate stop mechanism on the completion of the winding without imposing for that purpose any stress on the cop. The spindle 1 is reciprocated by a cam 2 and rotated by friction discs 4, 26 normally kept in contact by a spring 27 acting on a boss 28 on the spindle bearing 25. The thread-guide 3 is carried by a holder 5 and is moved outwardly along the feeler bar 8 by the contact between the nose of the cop and the cone 6. A ball lock 7 prevents inward movement of the cone. The bar 8 is reciprocated by a wheel 13 contacting with projections 12 on a pinion 11a driven by a pinion 10 on the shaft 9, When the feeler 5 reaches the position in which it touches a stop 17, when the rod 8 is in the extreme left-hand position, the next outward movement of the rod 8 moves the stop 17 and rocks the rod 16 about its pivot 15 against the action of the spring 19 so that the catch 20 releases the lever 22, and hence the rod 23. The spring 24, acting on a boss 28 on the spindle bearing 25, then moves the friction disc 4 out of contact with the driving disc 26.
Patent GB-951237-A (GB)
Title: Improvements in or relating to rocket propulsion units employing solid propellants
IPC: F02K9/97
Filed: 1960-04-08
Abstract: 951,237. Jet propulsion plant. DYNAMIT NOBEL A.G. April 8, 1960 [April 8, 1959; June 6, 1959J, No. 12669/60. Heading F1J. [Also in Division F3] A rocket propulsion unit comprises a solid propellant 1 in hollow cylindrical form the rear end of the propellant being constricted to form at least part of a nozzle 9 of such a shape that the ratio of the area of the burning surface of a major portion of the propellant to the cross-sectional area of the narrowest portion 8 of the nozzle remains constant during burning. At least the major portion of the rocket is enclosed by a reinforced plastics shell 7, in which the reinforcement may be glass fibres. A disc 15 of readily combustible or evaporatable metal or of a reinforced polyester and provided with annular slots may be arranged in the narrowest portion 8 of the nozzle. The nozzle may be formed of propellant material as a separate unit and secured to the charge by acetone or a plastics adhesive.
Patent GB-1177175-A (GB)
Title: Improvements in Solid State Electric Circuits for Microwave Transmission Lines
IPC: H03K17/74
Filed: 1967-03-17
Abstract: 1,177,175. Transmission line switches and filters. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. 17 March, 1967 [18 March, 1966], No. 12681/67. Heading H1W. A solid state device 30 (e.g. a varactor or diode) is arranged in series with the central conductor 1 of a coaxial line and is associated with conductive and dielectric elements which provide circuit reactances, the device and the elements together forming an assembly which may be plugged into the central conductor. As shown, the device 30 is held within a dielectric sleeve 35 upon respective ends of which are mounted metallic plugs 32, 33 adapted for insertion in sockets 11, 12 formed in the inner conductor 1. The outer conductor and its connector are not shown. The device is connected to plugs 32, 33 by leads 302, 301 whose combined lengths l 1  + l 2  determine the value of the circuit inductance L<SP>1</SP> in series with the device. The value of L<SP>1</SP> is adjusted by axial movement of a metallic plug 31 which is subsequently soldered in the adjusted position. An axially adjustable metallic sleeve 34 mounted upon plug 32 forms with plug 33 a coaxial capacitor which provides a circuit capacitance C<SP>1</SP> in parallel with the device. Means (not shown) are provided for applying either forward or reverse bias to the device 30, the equivalent circuit of the device in these conditions being respectively a parallel and a series LCR circuit. By suitable adjustment of L<SP>1</SP> and C<SP>1</SP>, the device can be tuned to parallel or series resonance at the same operating frequency whereby, depending upon the bias, it forms either a high or a low impedance in series with the line.
Patent GB-473998-A (GB)
Title: Improvements in and relating to the runways of travelling cranes
IPC: B66C7/00
Filed: 1936-05-05
Abstract: 473,998. Travelling - cranes. DEMAG AKT.-GES. May 5, 1936, No. 12686. Convention date, May 8, 1935. [Class 104 (ii)] The carrier 1 for the rails 5 of a travelling crane 6 runs on rails 4 by means of rollers 3, and is aligned with a fixed rail 7 by means of one or more rollers 9 carried by a bracket 8 on the carrier and adapted to engage one or other of two cam guides 10, 11 to raise or lower the carrier and bring the rail 5 level with the rail 7. The roller 9 may also serve to adjust the rail 5 towards 7 by engaging lateral cams 10a, 11a. Specification 455,776 is referred to.
Patent GB-993160-A (GB)
Title: Improvements relating to the purification of hydrocarbons
IPC: C07C7/148
Filed: 1962-04-03
Abstract: Hydrocarbon feedstocks containing a major proportion of normal paraffins, and minor proportions of naphthenes and aromatics, are purified by contacting with a catalyst consisting of the oxides of cobalt and molybdenum supported on a base of alumina with a minor proportion of an acidic component which is selected from silica and alumina, at a temperature within the range 700 DEG  F.-800 DEG  C., so that naphthenes are dehydrogenated to aromatics while normal paraffins are substantially unchanged by dehydrogenation, cracking, or isomerization, and treating the dehydrogenated feedstock to remove aromatics, for example by means of a sulphuric acid wash or treatment with silica gel or bauxite.  The feedstock may have been obtained by subjecting petroleum fractions to extraction with a molecular sieve. The pressure may be 0-500 p.s.i.g., hydrogen rate (recycle or once through) up to 10,000 S.C.F/B., and space velocity in the range 0.1-5 v/v/hour.
Patent GB-948999-A (GB)
Title: Nitro aryl alkylphosphonothioates
IPC: G03G13/28
Filed: 1962-04-03
Abstract: The invention comprises compounds of formula: <FORM:0948999/C2/1> where n is 0 or 1, R1 is C1-5 alkyl and R2 is a C6-10 aromatic hydrocarbon radical of the benzene series.  They may be prepared by reacting a compound A-OH with an alkyl-phosphonohalidothioate of formula: <FORM:0948999/C2/2> where Z is Cl or Br, and one of the groups A and B is R2 and the other a radical of structure: <FORM:0948999/C2/3> in the presence of an acid acceptor.  The products are insecticides (see Division A5).ALSO:Insecticidal compositions comprise phosphonothioate esters of formula <FORM:0948999/A5-A6/1> where n is 0 or 1, R1 is C1-5 alkyl and R2 is a C6-10 aromatic hydrocarbon radical of the benzene series [for preparation see Division C2].  They may be used alone or in soluions, suspensions, emulsions, aerosols, pellets, granules, dusts, powders or with semi-solid carriers e.g. ointments.  Other pesticides may be present e.g. nematocides, bactericides and herbicides.  Specific carriers mentioned are petrolatum and soap.
Patent GB-514270-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J31/12
Filed: 1938-04-29
Abstract: 514,270. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and DENISOFF, A. K. April 29, 1938, No. 12810. [Class 39 (i)] In television &c. receivers with a modulated scanning cathode ray to produce the visual image, the ray sets up a slowly-decaying secondary electron beam at the fluorescent screen so that the light persists at each point after the scanning ray has passed on to other points. The modulated ray from the gun 2 scans the fluorescent screen 5 and secondary electrons from the screen are accelerated by a grid 4 and retarded by a grid 3 to return to the screen 5 to produce more secondary emission. High-frequency oscillations are supplied between the screen 5 and grid 4 so that the arrangement acts as a to-and-fro electron multiplier with magnetic focusing 6 and with the secondary emission dying down in one frame period. The gauzes 3, 4 are of wire of diameter one-tenth of that of the ray from the gun 2 and have a mesh ten times this ray diameter. A screen giving a suitable rate of decay of the beam may be made by adding beryllium hydroxide and caesium to ordinary fluorescent components.
Patent GB-385184-A (GB)
Title: Improvements in machine housings
IPC: H02K5/00
Filed: 1932-05-04
Abstract: 385,184. Securing machinery to beds. TEVES, A., 23, Gustavsburgstrasse, Frank-. fort-on-Main, Germany. May 4, 1932, No. 12875. [Class 80. (iv).] A pump, compresser, or other machine d driven by a motor a through a coupling b has on its housing a pair of lugs e engaging bolts g rigid with the base f, so that, by nuts h above and below the lugs, the machine can be vertically adjusted. Rubber buffers, springs, &c. i may be disposed between the nuts and lugs. The invention is applicable to rotary machines generally, and particularly to the driving of small refrigerating machines.
Patent GB-101476-A (GB)
Title: Improvements in or relating to Flushing Apparatus and Water-waste Preventing Cisterns.
Inventor: PAFF FREDERIK JOHANNES
IPC: E03D3/12
Filed: 1916-09-12
Abstract: 101,476. Paff, F. J. Sept. 13, 1915, [Convention date]. Vadve - discharge waterwaste preventers, automatic. -A flushing- apparatus suitable for public lavatories comprises a chamber 1 connected at its upper end to the main water supply by a pipe 2, a conical cock 3 controlling the passage of the water into a central pipe 4. The pipe 4 which is closed. at its lower extremity, is provided with an opening 5, through which the water can flow into the chamber 1 until the pressure of the air trapped in the chamber balances the pressure of water in the main. The pipe 4 is secured to an outlet cock 6 leading to a discharge pipe 7, the cocks 3, 6 being so arranged that, when one is open, the other is shut. Screwed caps and packing- rings ensure water - tight joints at the inlet and outlet fittings of the chamber. The Specification as open to inspection under Sect. 91 (3) (a) states that the pipe 4 is formed in two pieces which telescope but are pressed outwards by a spring. The connexion is so arranged that longitudinal movement is permitted to the pieces, but relative turning movement is prevented. This subject-matter does not appear in the Specification as accepted.
Patent GB-494772-A (GB)
Title: Manufacture of polymerisation products
IPC: C08F2/22
Filed: 1937-05-06
Abstract: Monomeric substances, especially those containing the -C=CH2 group, are polymerized in the presence of water without the addition of emulsifying agents, in the presence of per-acids or salts thereof to obtain emulsified products.  There are specified: monomers-vinyl esters of organic and inorganic acids, e.g. vinyl formate, acetate, chloracetate, propionate, butyrate, or chloride, or acrylic esters, e.g. methyl and ethyl acrylates; catalysts-persulphuric acid, Caro's acid, the perphosphoric acids or their ammonium, potassium, or sodium salts. Mixtures of monomers may be used; and the polymerization may be carried out in the presence of water-insoluble solvents or swelling agents for the polymers, e.g. benzene, toluene, xylene, tetrahydronaphthalene, methylene chloride, chloroform, carbon tetrachloride, or ethyl acetate, or of softening agents.  In examples: (1), (2), (4), (5) there are polymerized in emulsion in aqueous potassium persulphate solution, (1) vinyl acetate and vinyl chloride in the presence of toluene, (2) vinyl isohexylate and vinyl chloride in the presence of ethyl acetate and dibutyl phthalate, (4) vinyl acetate in the presence of methylene chloride and dibutyl phthalate, (5) methyl acrylate in the presence of benzene; (3) vinyl acetate is polymerized in aqueous ammonium persulphate solution in the presence of toluene.  The products of the examples may be spread, and dry to clear films. The Provisional Specification refers to the use of per-acid compounds generally.
Patent GB-714742-A (GB)
Title: Improvements in or relating to apparatus for high frequency electric induction heating
Inventor: CONEY THOMAS EDWARD
IPC: H05B6/02
Filed: 1952-05-22
Abstract: 714,742. Induction heating. GENERAL ELECTRIC CO., Ltd. May 22, 1953 [May 22, 1952], No. 13024/52. Class 39 (3) An inductor 10 of substantially flat elongated loop form is fed from fins 11 of a transformer secondary winding 12, and has two spaced differently shaped parts 10a, 10b for heating differently shaped areas of articles 14, 15. In Fig. 3 a drum conveyer 20 carries articles 14 on radial arms 22 past a locating plate 16 and into heating relationship with the inductor 10. The articles are quenched by jets 24. Alternatively, a drum conveyer is provided with notches in its periphery in which the articles are received and fed to the inductor. Specification 709,479 is referred to.
Patent GB-998709-A (GB)
Title: Electrodeposition of platinum group metals on titanium
IPC: C25B11/00
Filed: 1964-03-26
Abstract: A titanium surface, e.g. an electrode is prepared for plating with a Pt group metal, by immersing it in a fused bath of alkali metal halide, e.g. NaCl, NaF, NaBr, KCl, KBr, LiCl or mixtures thereof, which etches the metal and removes oxide scale.  The treatment requires about 1 hour but this is reduced by using a graphite container or dispersing carbon in the melt.  The titanium body is then washed in hot strong inorganic acid, and finally with water. The plating baths used contain Pt, Rh, or Pd salts or mixtures thereof to produce alloys.  The baths may include mono- or di-ammonium phosphate.  Tests are described using the plated titanium electrode in alkali chloride cells.