baber/WOPTO huggingface dataset:
Patent GB-657470-A (GB)
Title: Production of amides and thioamides
Filed: 1949-02-28
Abstract: Acetals of formula <FORM:0657470/IV (b)/1> where R is hydrocarbon and R1 is the hydrocarbon residue of an alcohol are heated with (a) ammonium polysulphide or a mixture of ammonium hydroxide and sulphur to give an amide RCONH2, or (b) a primary or secondary amine and sulphur to form a thioamide R.CS.N<.  R may be alkyl, e.g. methyl, ethyl, hexyl, C11H23-, C17H35-, phenyl, benzyl or cyclohexyl.  R1 is preferably lower alkyl but may be butyl. The amine used in reaction (b) may be alkyl, e.g. methyl- or dimethylamine, ethyl- or diethylamine, dibutylamine or isopropylamine, heterocyclic, e.g. morpholine or piperidine, or aryl, e.g. naphthylamine, aniline or methylaniline.  Reaction (a) is carried out in aqueous solution, whilst anhydrous conditions are employed for reaction (b).  A solvent such as dioxan may be used in either.  In the examples, dimethyl butyral is heated with (1) ammonium polysulphide and (3) ammonium hydroxide or sulphur to give butyramide, (2, 4) dimethyl benzal is similarly treated to give benzamide, and (5) dimethyl benzal is heated with sulphur or morpholine to give 4-thiobenzoylmorpholine.
Patent GB-792749-A (GB)
Title: Apparatus for filling containers with a given weight of material
IPC: B65B1/32
Filed: 1956-02-22
Abstract: 792,749. Filling-machines. THAYER, W. L., and THAYER, F. L. Feb. 22, 1956, No. 5434/56. Class 94(1). [Also in Groups XVIII and XL(b)] In an automatic feed weigher (see Group XVIII) sacks 200 to be charged with a predetermined weight of material are applied manually to a spout 104 where they are retained by a knurled cam 106 until, on the attainment of the predetermined weight, the cam is released by an automatically energized solenoid 114 so allowing the sack to fall onto a conveyer belt (not shown). In the event of the sack being loaded with an excess weight of material the solenoid 114 has to be energized by a manually operated switch.
Patent GB-433868-A (GB)
Title: Improvements in the production of alcohols
IPC: C07C29/04
Filed: 1934-02-20
Abstract: Alcohols are produced by the hydration of olefines containing at least three carbon atoms by treatment with an aqueous mixture of a zinc salt and an inorganic acid, preferably zinc sulphate and sulphuric acid.  The reaction vessel may be made of or lined with copper, or other materials such as the metal known under the Registered Trade Mark "Monel."  In examples (1) a mixture of propylene and propane containing 35 per cent of propylene is treated at 285 DEG  C., and 3000 lb. pressure with an aqueous solution containing 4 per cent of ZnSO4.7H2O and 1,3 per cent of sulphuric acid; (2) a mixture of butylene and butane free from isobutylene and containing 30 per cent of butylene is treated with an aqueous solution containing 8 per cent of zinc sulphate and 4,7 per cent of sulphuric acid, at 225 DEG  C., and 3000 lb. pressure. Specifications 369,216, 378,764, and 389,133 are referred to.
Patent GB-604673-A (GB)
Title: Improvements in or relating to radar systems
IPC: G01S13/538
Filed: 1945-03-07
Abstract: 604,673. Radiolocation; valve circuits. ELLIOTT, W. S., GAUNT, H., and WEBLEY, R. S. March 7, 1945, No. 5727. [Classes 40 (vi) and 40 (vii)] In a pulse radar system, moving objects are detected by storing signals received during whole or part of one scan of the aerial as a charge pattern on the target of an electronic storage tube and by deriving from the stored signals and corresponding signals received during a subsequent scan, a differential output representative of objects of changing position only. The storage tube 1 is similar to that described in Specification 604,672 and signals from the receiver 13 fed via unit 19 to the modulator electrode 3 are recorded on the target electrode 9 during one scan of the aerial 15 as a master, suitable deflecting voltages being fed to plates 7, 8 from generators 21, 22 which are synchronized at pulse recurrence frequency and aerial scan frequency respectively, by the transmitter 14 and aerial rotating means 17 under the control of square pulses of aerial scan frequency from unit 23. During alternate scans, the output from unit 23 controls the power supply unit 20 to condition the tube for reproduction and cuts off the modulating unit while opening the switching unit 27 to permit the signals direct from the receiver and those reproduced signals from the tube, amplified at 26, to pass to the cancellation unit 28. The differential output from unit 28, corresponding to the non-repetitive portions of the signals on successive scans produced by movement of the reflecting objects, is fed to a P.P.I. or similar display unit 29, the time-base 30 for which is synchronized by locking pulses from the transmitter. In order to provide the same number of scans on the final display as is performed by the aerial system, two identical storage tubes may be employed, each storing signals during alternate scans so that differential signals are obtained for display during every scan. Specification 604,671 is referred to in the Provisional Specification.
Patent GB-1416783-A (GB)
Title: Plasma torches
IPC: H05H1/34
Filed: 1973-02-06
Abstract: 1416783 Plasma torch VYSOKA SKOLA BANSKA OSTRAVA 6 Feb 1973 [9 Feb 1972] 5762/73 Heading H5H A plasma torch comprises a nozzle 1 joining at one end an external casing 21 to a coaxial tube 22, a tubular insert 2 between the casing 21 and tube 22 and provided at the nozzle end with a channelled coolant distributer 23 which ensures that cooling liquid flows downwardly between the insert 2 and casing 21, across the internal surface of nozzle 1 and upwardly between the insert 2 and tube 22, a cathode 3 mounted on a tubular cathode holder 6 within tube 22 and a housing 9, 15 containing a plasma gas introduction chamber 16 which can be displaced within the housing towards and away from the nozzle 1, the chamber 16 carrying the cathode holder 6 and an insulating tubular sheath 5 surrounding the cathode holder 6 for supplying plasma gas to the cathode, the housing consisting of a sleeve 9 carrying casing 21, tube 22 and insert 2 and a cap 15 retaining the chamber 16 which is biased against it by a spring 14, the sleeve 9 being connected to the cap 15 by a threaded collar 12 which enables the relative axial positions of the sleeve and cap and hence the cathode 3 and nozzle 1 to be adjusted and the chamber 16 being axially displaceable against return spring 14 to bring cathode 3 into proximity with nozzle 1 to initiate arcing. The coolant distributer 23 has longitudinal grooves to provide the flow channels and is stated to provide a rapid coolant flow rate over the nozzle surface. The chamber 16 adjustably secures the cathode holder by setscrews 18 to enable it to be longitudinally adjusted to vary the geometrical configuration of the space between the nozzle and the cathode so that various diameter nozzles and gas flow rates can be catered for. The cathode 3 has longitudinal grooves which channel the plasma gas and help centre it in the insulating porcelain sheath 5. The torch may be used for cutting metals, welding, zonal refining, remelting, melting or depositing layers of metals or oxides by spray coating.
Patent GB-796074-A (GB)
Title: Dual channel magnetic tape recorder
IPC: G11B15/28
Filed: 1956-02-24
Abstract: 796,074. Magnetic recording and reproducing apparatus. SOUNDSCRIBER CORPORATION. Feb. 24, 1956 [Oct. 17, 1955], No. 5779/56. Class 40 (2). A magnetic record apparatus employing a wide flexible tape T passing from a feed spool 11 to a take-up spool 12 is provided with a pair of drums 41, 42 which rotate on an axis parallel to the length of the tape and carry sets of transducers 45, 46 which record and reproduce interlaced transverse tracks on the tape from two separate signal sources. The drums 41, 42 are rigidly secured on a revolving shaft 27, and the tape is pressed against them by a pair of arcuate shoes 28, 29, flutter in the rotation of shaft 27 being damped out by means of a flywheel 55 coupled thereto by a friction pulley 58. The spacing of the transducers around each drum corresponds to the width of the tape so that as one transducer leaves the tape at one edge the next one passes on to the tape at the other edge. Signals are fed to the transducers via slip rings 59, 60, 61, the intermediate ring 60 acting as a common connection. The tape is driven at constant linear velocity in known manner by a drive roller 19, tension in the tape being obtained by a pressure member 16.
Patent GB-1047968-A (GB)
Title: Apparatus for proportional mixing of two liquids especially in a steam cleaning system
IPC: C23G3/00
Filed: 1964-02-12
Abstract: 1,047,968. Reciprocating pumps. CLAYTON MANUFACTURING CO. Feb. 12, 1964 [July 17, 1963], No. 5924/64. Heading F1A. [Also in Division B1] In apparatus for mixing a soap solution with water (see Division B1) a multiple diaphragm metering pump has a main pump chamber 41 with flexible diaphragm 50 reciprocated by an electric motor 192 and crank 178, and two smaller auxiliary pumps 82, 80 with pumping chambers 90, 130 having flexible diaphragms 92, 136 separating them from the main chamber 41 and reciprocated by the pressure fluctuations therein. Each chamber has spring-loaded inlet and outlet valves arranged respectively below and above the plane of Fig. 10 (see Figs. 11 and 12, not shown). The auxiliary pump 80 has an additional diaphragm 138 adjustably loaded by a spring 162 forming an hydraulic accumulator whereby the delivery of the pump can be varied. As described, the pump 82 pumps concentrated soap solution, the main pump diluted soap solution, and the pump 80 the fuel for a heating coil burner.
Patent GB-803359-A (GB)
Title: Improvements in, or relating to, plugs and force cups for the waste outlets of sinks, washbasins and baths
IPC: E03C1/264
Filed: 1956-02-27
Abstract: 803,359. Cleaning waste pipes. GILL, R. S. Feb. 25, 1957 [Feb. 27, 1956], No. 5981/56. Class 99(2). [Also in Groups I and XXIII] To remove hard deposits from the waste outlet pipes of sinks, washbasins and baths, in a closure member therefor a pronged member b is secured within the collapsible chamber of a plug, stopper or force cup n, so that when placed thereon, pressed and released, the prongs enter the aperture of the waste outlet for this purpose with a force cup n the pronged member b is attached to a pin p extending into a handle m from which it may be removed and replaced for use without the force cup n. The pronged member may be of rubber, plastic or nylon. Specification 713,668 is referred to in the Provisional Specification.
Patent GB-765417-A (GB)
Title: Improvements in or relating to a mobile excavating or transporting appliance
IPC: B60G9/02
Filed: 1955-03-01
Abstract: 765,417. Motor vehicle axles. DRIESEN, J., [trading as BISCHOFF-WERKE KOMM.- GES.]. March 1, 1955 [July 17, 1954], No. 6025/55. Class 79(4). [Also in Group XXI] A mobile transporting or excavating appliance comprises a vehicle chassis which has rolling-off rails arranged at one end for fitting a tipping appliance and between the axles has a platform adjacent the engine for the fitting of a grab, shovel or like jib. The vehicle may have two or four wheel drive and the steering axle c has a bridge member e which is pivoted to the chassis a at p allowing the axle c to swing from side to side for negotiating rough ground. Distance pieces g are inserted between the axle and the chassis to lock the axle c relative to the chassis or to adjust the amplitude of the axle movement. In one embodiment, Fig. 1, a jib k with a grab l is mounted on the chassis a which has rolling-off rails r, a reversible driving seat h and reversible or double steering i,
Patent GB-808164-A (GB)
Title: Discriminator circuit
IPC: H03J7/04
Filed: 1957-02-22
Abstract: 808,164. Frequency discriminators. STANDARD TELEPHONES & CABLES Ltd. Feb. 22, 1957 [Feb. 23, 1956], No. 6047/57. Class 40 (5). A frequency discriminator comprises two channels 1, 2, fed from a common input 3, each channel including a resonant circuit 4 or 5, which will pass all frequencies except those in the region of resonance. The circuit 4 is arranged to resonate at a frequency f1, which may correspond to one condition of a frequencyshift telegraphy system or one peak of the frequency discrimination curve of a discriminator for detecting frequency modulation, and the circuit 5 is resonated at a frequency f2 corresponding to the other condition or peak. The output of each channel is rectified by bridges 6 and 7 respectively to produce D.C. voltages which are combined in opposition in resistors 9 and 10, the output of the discriminator being taken from terminals 11 and 12. Since the outputs 13, 14, of the two channels, Fig. 2, are connected in opposition, at frequencies away from resonance they are cancelled, but at or near resonance either a positive or negative voltage 15 will be developed. The effects of dissipation in the tuned circuits may be balanced out by adjustment of the resistors 16. In circuit 4, for example, assuming that the frequency of the input signal is the same as the resonant frequency of the inductor 17 and capacitor 18, voltage drops E1 and E2 are developed across the portion 19 of the inductor 17 and the resistor 16, respectively, and by induction a voltage E3 will be developed across the remaining part of the inductor 17. Since at resonance the tuned circuit appears resistive, E2 and E3 are in phase and by adjusting resistor 16 the voltage E3 may be made equal to the voltage E2 with reference to the coil tap E0, whereby the inputs 20, 21 to the bridge circuit 6 become equal potential points and no current flows to the bridge. As the input frequency moves away from resonance E2 approaches ES in magnitude until the voltage appearing across the bridge is substantially ES and maximum current flows through the bridge.
Patent GB-101265-A (GB)
Title: Improvements in or relating to Liquid Dispensing Apparatus.
Inventor: LYONS HARRY CHESTER
IPC: B67D3/00
Filed: 1916-04-27
Abstract: 101,265. Lyons, H. C. April 27, 1916. Average-discharge apparatus. - Apparatus for dispensing milk or other liquids containing constituents of different specific gravities, whereby a relatively proportionate discharge of each is obtained simultaneously, consists of a reservoir D, Fig. 2, with a mixing- chamber D<1> at its lower part having an inlet i<1> for liquid from the lower part of the reservoir, and an inlet i through which liquid from the top part passes by means of a pivoted duct F, which is provided at its upper end with a float f<2> slightly below the level of the liquid. The chamber D' is carried by the base d<3>, which may screw into the lower edge of the reservoir so as to be detachable to facilitate cleaning. The inlets i, i<1>, closed normally by float valves v, v<1>, are preferably formed in screw plugs I, I<1> inserted in a detachable disk D<2> in the floor d<3>. A cross-piece f at the lower end of the duct F fits over a lateral extension e<2> of a piece e, the lower flanged end e<1> of which fits within an upward extension of the walls of the inlet i. On opening the cock C, liquid flows out of the chamber D<1>, causing the valves v, v<1> to open and liquid to flow from the top and bottom of the reservoir simultaneonsly. When the cock C is closed, the valves v, v' close and prevent the return of the cream and lighter constituents from the chamber D' to the reservoir D. The duct F may be telescopic, or it may consist of a conduit of any suitable flexible material. In a modification, the valves v, v<1> are dispensed with, the inlets i, i' and tube F are made of small diameter, and the mixing-chamber D<1> correspondingly reduced in size. In another modification, the inlet i, Fig. 11, for the heavier constituents from the lower part of the reservoir D to the mixing- chamber D', is made directly into the lower part of the inlet duct i for the lighter constituents, so that the mixing or discharge chamber D' is still further reduced in size. More than two inlets i, i<1> and more than one floatable duct F may be provided when the liquid is made up of more than two constituents of different specific gravities.
Patent GB-710096-A (GB)
Title: Improvements relating to the electroplating of aluminium and alloys thereof
IPC: C25D5/44
Filed: 1951-03-13
Abstract: In preparing articles of aluminium or its alloys for electroplating the oxide film thereon is broken over the area or areas to be plated in such manner that the surface is polished and finely roughened without, however, exhibiting depressions visible to the naked eye, and the area or areas to be plated is or are then treated with a solution of caustic alkali and alkali metal zincate.  The mechanical treatment may be effected by vapour blasting, i.e. by directing at the surface a liquid suspension of grit of smaller particle size than is used in sand blasting (see Group XXIII).  The grit may be of size 100-1230 mesh and may be obtained from the crushed rock Novaculite. The vapour blasting step must be preceded by degreasing and followed by a treatment with a solution of nitric or sulphuric acids alone, together or in succession.  For alloys containing both magnesium and silicon treatment with both acids may be necessary; suitable concentrations of acids are specified.  In addition to the final treatment with caustic alkali and zincate solution such a treatment may be interposed between the vapour blasting and the acid treatment; in such case the acid treatment is continued until the layer of zinc has disappeared.  After rinsing following vapour blasting or the zincate treatment further treatment may be delayed if desired. Chromium may be directly electroplated on to the prepared surface. Treatment as above described is applicable to aluminium alloys containing viz. (a) 4.5 per cent. copper, 1.5 per cent. magnesium, 0.6 per cent. manganese, (b) 1.6 per cent. copper, 2.15 per cent. magnesium, 5.6 per cent. zinc, 0.3 per cent. chromium, (c) 3.5 per cent. copper, 9 per cent, silicon, (d) 1.3 per cent. copper, cent. silicon, 0.5 per cent. magnesium, (e) 7 per cent. silicon, 0.3 per cent. magnesium.
Patent GB-551180-A (GB)
Title: Improvements in or relating to mounting printing plates on supports
IPC: B41N6/02
Filed: 1941-05-09
Abstract: 551,180. Printing surfaces. LAYTON, Ltd., C. & E., and RIDDELL, H. May 9, 1941, No. 6057. [Class 100 (ii)] A printing plate, e.g. of paper, celluloid, metal, rubber, synthetic resin or plastic, which cannot efficiently be secured to a support by usual securing devices, is detachably mounted on its support by an adhesive medium which is non-sticky at ordinary temperatures, but becomes sticky to tacky on the application of moderate heat. A suitable medium comprises a sheet of fabric impregnated with guttapercha which becomes tacky at a temperature of about 120‹F. The prior use, for securing a printing plate to its support, of a fabric coated on both sides with an adhesive tacky at normal temperatures is ackriowledged in the Provisional Specification.
Patent GB-801096-A (GB)
Title: Improvements in or relating to semi-conductor devices having a non-linear electric characteristic
Filed: 1955-03-02
Abstract: 801,096. Converters. SIEMENS-SCHUCKERTWERKE A.G. March 2, 1955 [March 18, 1954], No. 6215/55. Addition to 750,134, [Group XXXVI]. Class 38 (2). [Also in Group XXXVI] A semi-conductor amplifying or non-linear device of the type described in the parent Specificaion is so shaped that the low recombination rate surface is of substantially smaller area (including in the limit, zero area) than the high recombination rate surface. Fig. 3 shows the intrinsic semi-conductor 11 in the form of a nearly closed annulus having end electrodes 14. A magnetic field is applied perpendicular to the plane of illustration so that when current is applied between electrodes 14, holes and electrons are both deflected to form a crowded region adjacent the outside surface 12 and a depleted region adjacent the inner surface 13. The outside surface is treated to have a high recombination rate " S," and the inside surface is treated to have a low " S." As in the parent Specification this results in a change in average carrier concentration providing a non- linear voltage current characteristic for current between electrodes 14, the fact that the area of surface 13 is less than that of surface 15 increasing the non-linear effect. In the limit surface 13 may be reduced to zero by providing a solid cylindrical semi-conductor as in Fig. 6. Coil 25 is fed with alternating current to provide a circular electric field coaxial with the body, and a magnetic field 27 parallel to the axis of the body. The magnetic and electric fields being perpendicular to each other results in deflection of carriers between the centre region and the outer surface region of the cylindrical body to provide non-linear characteristics to current supplied between electrodes 29 on the top and bottom of the body. An independent and additional magnetic field in the direction 27 may also be provided. In Fig. 7, the body is arranged as an annulus carrying a toroidal coil 32, the outer surface being treated to have a high " S," and the inner surface a low " S." Alternating current input to coil 32 results in a circular magnetic field coaxial with the body, and an electric field each section of which is coaxial with the individual turns of coil 32. Current fed between electrodes 35 on the ends of the body results in an electric field perpendicular to, and also a second magnetic field parallel to the magnetic field provided by coil 32. This condition in effect provides feedback. Thus deflection of carriers occurs to vary the conductivity of the semi-conductor body. The arrangements may be employed as an amplifier, or as an inverter. The conductivity of the body may also be modified by an additional process in which carriers are injected into the depleted zone by using a further control field parallel to the magnetic field.
Patent GB-1169490-A (GB)
Title: Stabilizing Oxymethylene Polymers
IPC: C08K5/37
Filed: 1968-02-08
Abstract: 1,169,490. Stabilized oxymethylene polymer composition. PERSTORP A.B. 8 Feb., 1968 [16 Feb., 1967], No. 6299/68, Heading C3P. Oxymethylene polymers are stabilized by adding a salt of a mercaptobenzimidazole of the formula where R is a hydroxyl group and n is 0 to 4. Suitable salts are those with zinc (preferred), lead, tellurium or copper cations. Supplementary further stabilizers mentioned are thiobisphenol, 1,3,5 - trimethyl - 2,4,6 - tris (3,5 - ditertiary butyl - 4 - hydroxybenzyl) - benzene and 2,2<SP>1</SP> - methylene - bis - (4 - methyl - 6 - tertiary butyl phenol). The examples all relate to the stabilization of a trioxan (95%)-dioxolan (5%) copolymer with the zinc salt of 2-mercaptobenzimidazole and, optionally, the abovementioned additional stabilizers.