baber/WOPTO huggingface dataset:
Patent GB-653452-A (GB)
Title: Improvements in or relating to a method of preparing an (n,n-diaryl) amino acid ester
Filed: 1948-03-19
Abstract: A b -(N,N-diaryl)-aminopropionic acid ester is prepared by reaction of a diarylamine with either an ester of acrylic acid with a monohydric alcohol, or an ester of a b -chloropropionic acid with a monohydric alcohol, in the presence of an acidic condensing agent. Specified diarylamines are phenyl-a - or b -naphthylamine, p-hydroxy diphenylamine, p-amino, p-chloro or p-isopropoxy diphenylamine, phenyl-p-xenylamine, dinaphthylamine and dixenylamine.  The esters of acrylic and b -chloropropionic acids specified include the alkyl, e.g. methyl, ethyl, propyl, butyl, dodecyl, alkenyl, substituted alkyl, e.g. chloromethyl, bromomethyl, b -ethoxyethyl, benzyl, and heterocyclic esters, e.g. furfuryl, and cyclohexyl and cyclobutyl. Temperatures in the range 30-175 DEG  C., preferably 50-100 DEG  C., may be used, with a ratio preferably of 2 mols. of amine to 1 mol. of ester. Specified catalysts are hydrochloric acid, phosphoric acid, sulphuric acid, sodium bisulphate, zinc chloride, aluminium chloride, stannic chloride, boron trifluoride and hydrogen fluoride.  Preferred procedures include the use of solvents and diluents such as tetrachloroethane and other chlorinated hydrocarbons, ether, acetone, and toluene.  The esters may be hydrolysed to give b -(N,N-diaryl), amino propionic acids.  In the examples: (1) ethyl b -chloropropionate is added to molten diphenylamine and aluminium chloride to give ethyl b -(N,N-diphenyl)-amino propionate, also prepared (2) in a similar way from ethyl acrylate and diphenylamine. The Specification as open to inspection under Sect. 91 comprises also the statement that the amines dianilino-diphenylmethane and anilinodiphenylene oxide, and the catalysts iodine and ammonium bromide may be employed in the reaction.  This subject-matter does not appear in the Specification as accepted.ALSO:A b -(N, N-diaryl), aminopropionic acid ester is used in kerosene solution for killing weeds.  The aryl groups may be phenyl or naphthyl and may be substituted, e.g. by chloro, amino, hydroxy or isopropoxy groups, and the esterifying group is aliphatic, which may be substituted, e.g. by chloride, bromine, or ethoxy, aralkyl, or a heterocyclic radical, e.g. tetrahydrofurfuryl.ALSO:A b -(N, N-diaryl), aminopropionic acid ester is used in an aqueous suspension with sodium lauryl sulphate as a plant stimulant and hormone, e.g. for yew cuttings.  The aryl group may be phenyl or naphthyl and may be substituted, e.g. by chloro, amino, hydroxy or isopropoxy groups, and the esterifying group is aliphatic, which may be substituted, e.g. by chlorine, bromine or ethoxy, aralkyl, or heterocyclic e.g. tetrahydrofurfuryl, radicals.
Patent GB-1092209-A (GB)
Title: Improvements in or relating to pulsed radar systems
Inventor: MILLER ALAN
IPC: G01S13/528
Filed: 1966-02-24
Abstract: 1,092,209. Pulse Doppler radar. MARCONI CO. Ltd. Oct. 12, 1966 [Feb. 24, 1966], No. 8260/66. Heading H4D. The Specification describes variations of the M.T.I. radar described in Specification 1,092,208, whereby cancellation of clutter echoes is performed at I.F. frequency and double cancellation is made possible. In the double cancellation arrangement of Fig. 3, groups of three pulses are transmitted having spacings T of 500Ás. larger than the width of expected clutter. The echo signals are converted in mixer 11 to IF signals at the Coho (9) frequency, by mixing with the Stalo (8) output, and may comprise, Fig. 4 (a) three clutter echoes C 1 , C 2 , C 3 , three echoes from a first target E 1 , E 2 , E 3  all surrounded by clutter, and three echoes from a second target F 1 , F 2 , F 3 , only F 1  and F 2  being surrounded by clutter. At a subtraction circuit 13 waveform (a) is subtracted from a waveform (b) produced by delaying waveform (a) means 12, by period T, to give waveform (c). A further subtraction process on waveform (c) and its delayed counterpart (d) produces waveform (e) from subtraction 15. Waveform (b) is delayed by period T at 18 to give waveform (f), and waveforms (e), (f) and (a) are all detected in respective amplitude detectors 17, 19, 20 to give video signals which are applied to AND gate 21. This produces waveform (g) in which the clutter has been removed, but which contains a false echo S. Waveform (g) and its T delayed counterpart (h) are applied to AND gate 23 to produce waveform (j). Waveform (j) is converted by means 24 into a blanking pulse (k) which is applied to one input of AND gate 26, having waveform (h) (slightly delayed), applied to its other input, thereby removing pulse S from waveform (h). The resultant waveform (m) is the cancelled video waveform and is extracted for processing. It also produces a gating waveform (n) in means 27, which is used to gate the I.F signals (p) (which are signals (e) delayed by T plus half a gate pulse width) in gate 28, to produce cancelled I.F. signal (q). Means 3, 14, 15 and 18 may be removed, if only two pulses are to be transmitted and single cancellation is to be used, Fig. 1 (not shown).
Patent GB-1302046-A (GB)
IPC: F24F7/08
Filed: 1970-02-20
Abstract: 1302046 Ventilators HLOHMANN [trading as LOHMANN-APPARATE-BAU KG] 20 Feb 1970 [21 Feb 1969] 8270/70 Addition to 1176995 Heading F4V  A ventilator as described in the Specification 1,176,995 is modified in that the vertically depending duct 4 is provided with an upper closable inlet 41 and a non-return pivoted flap 50 which opens in response to air flow through the lower inlet of the duct. The opening 41 includes louvre blades 43, and the blades 43 and flap 50 may be biased to a closed position by springs or weights. A flap or slide may be provided to shut off the opening 41.
Patent GB-589773-A (GB)
Title: Fluorescent electric discharge tube
IPC: H05B41/22
Filed: 1945-04-04
Abstract: 589,773. Discharge lamps. LUMALAM. PAN AKTIEBOLAG. April 4, 1945, No. 8279. Convention date, May 2, 1944. [Class 39 (i)] A fluorescent lamp 1 with filling of rare gas or mercury vapour has incandescent coil electrodes 3 and 10 and auxiliary starting cupshaped electrodes 2 and 13 acting also as cathode shields, the shield 2 being connected to the opposite electrode 10 through a condenser 9 and shield 13 to electrode 3 through a condenser 16. The condensers may be located in the caps of the tube or may be replaced by any impedance. The starting electrodes 2 and 13 have. coatings of emissive material.
Patent GB-577401-A (GB)
Title: Improvements in automatic feed mechanism for granular or pulverulent material
IPC: G01G13/00
Filed: 1944-05-03
Abstract: 577,401. Hoppers. AVERY, Ltd., W. & T., and PAGE, A. E. May 3, 1944, No. 8322. [Class 78 (i)] In mechanism for feeding granular, etc. material to automatic weighing apparatus, a tiltable hopper or baffle is mounted between the main bulk supply hopper and a vibratory dribble feed plate and is moved in accordance with the movements of the weighbeam to change the path of the material so that the unobstructed flow is changed to a dribble feed. The tiltable hopper c is mounted between the supply hopper a and a shoot d which delivers to the weigh hopper b. The hopper c is pivoted at el and is connected by a link e to the piston rod f of a pneumatic cylinder g. The valves regulating the supply of air to this cylinder are controlled by the movements of the weighbeam on which the hopper b is mounted. When the air supply is cut off by the movement of the weighbeam, the hopper c moves from the position shown in broken lines to that shown in full lines in which latter position the material x forms a seal between the dribble feed plate i and the hopper outlet c<1>. The plate j is supported by leaf springs k and is vibrated in the manner described in Specification 556,748. The pipes h, h<1> through which the air flows to and from the cylinder g are connected in series with, or form branches of, the pipes m, m<1> of the actuating mechanism of the plate j.
Patent GB-360323-A (GB)
Title: Vehicle for conveying parts of aeroplanes and the like
IPC: F16D3/68
Filed: 1931-03-18
Abstract: 360,323. Road vehicles. VIENEZIAN, C. C:, 40, Via Piffetti, Turin, Italy. March 18, 1931, No. 8338. Convention date, March 18, 1930. [Class 108 (i).] Road vehicles for transporting aeroplanes &c. are provided with means for the temporary fastening of skeleton frames, uprights, &c., which provide a superstructure for supporting the. load. Fig. 2 shows a vehicle loaded with a fuselage and tail planes, while Fig. 4 shows the vehicle loaded with aeroplane wings. The vehicle platform 1 or frame is provided with a skeleton frame 7 and uprights 10 or uprights alone and means are provided for securing them in holes arranged transversely of the platform. The upright 10 or member 13 for securing the frame 7 fits into an aperture 4 and is provided with a shoulder 14<1> to rest on the platform while a member 15 is arranged to oscillate by means of a set screw 18, 19 so as to bring a hook 20 to engage transverse members 6 and so secure the member 13 or upright 10. The wings are arranged to rest on cushions 28 and the uprights are provided with adjustable pads to engage the wings. The pads may be in the form of rollers 211, Fig. 11, carried by adjustable arms 27 from a sleeve 22<1> on the upright 10.
Patent GB-658558-A (GB)
Title: Improvements in drying apparatus for pottery ware
IPC: F26B9/06
Filed: 1949-03-29
Abstract: 658,558. Drying-apparatus. SHUFFLEBOTTOM, G. W. March, 29, 1949, No. 8428. [Class 34(ii)] Drying-apparatus for pottery ware &c. comprises a plurality of box-like containers which may be aggregated side by side to make up apparatus of the desired size, each such unit having lateral perforated flues which register with those of a neighbouring container, the whole assembly being provided with a hot air conduit incorporating a fan and heating means, the said conduit being connected to the flues and to interior compartments for extraction and recirculation of the hot air. As shown, boxlike structures a, b, c are each provided with four horizontally disposed transverse flues d, each of which has a damper d' and is perforated on its underside at d<SP>2</SP> to allow downward passage of hot air on to the pottery.ware which is supported on detachable travs e. A conduit f which may be extensible, passes along the top of the combined apparatus and down each end thereof at f<SP>1</SP> and f<SP>2</SP> the heater unit g being installed either on top of the apparatus or at the side thereof. At one extremity tne conduit connects flush with the wall of the structure and is divided at h to supply the four flues, the other end of the conduit f<SP>2</SP> being connected to the compartment in which the ware is placed by slots f<SP>3</SP>.
Patent GB-350574-A (GB)
Title: A method of removing arsenic and chlorine from sulphur
IPC: C01B17/02
Filed: 1930-03-15
Abstract: Volatile impurities present in sulphur, particularly arsenic, antimony and selenium, are removed by treatment in the vapour or liquid state with chlorine or sulphur chloride in excess of the amount required to form chlorides with the impurities present, the chlorides being removed by distillation or by scrubbing with air or inert gases.  The distillation or scrubbing may be effected at reduced pressure, e.g. at 25-50 millimetres of mercury, and this procedure may be employed, after distillation, to remove the last traces of the volatile chlorides.  Any chlorine remaining may be removed by treatment with steam.  Scrubbing may be effected by causing the liquid sulphur in a finely divided condition to descend a tower in countercurrent to the air or inert gas, or it may be sprayed with the air &c. into a chamber. The gases carrying the volatile chlorides may be scrubbed with water or aqueous alkaline solutions to obtain oxides or oxychlorides of the impurities.  When arsenic is present in any quantity, the sulphur may be treated in the liquid state with an excess of sulphur chloride, and the greater part of the arsenic distilled off, under reduced pressure if necessary, the last traces being removed by scrubbing with air &c.  To remove selenium, the molten sulphur is agitated with one-quarter to half its weight of sulphur chloride which with the selenium and other impurities is distilled off, preferably under reduced pressure, and the sulphur scrubbed with air or subjected to low pressure, to remove the last traces of impurity.  To remove the last traces of sulphur chloride, the molten sulphur is scrubbed with steam and filtered through sand, asbestos, metal gauze, or other filter cloth.
Patent GB-1013825-A (GB)
Title: A method of making a flexible electric heating device
Inventor: BULL THOMAS WILLIAM
IPC: H05B3/58
Filed: 1962-03-05
Abstract: 1,013,825. Flexible electric heaters. ELECTROTHERMAL ENGINEERING Ltd. March 1, 1963 [March 5, 1962], No. 8485/62. Heading H5H. A flexible electric heating device, e.g. a flat sheet or strip, or a cup-shaped mantle, is produced by forming a first bond of interlocking loops of insulating material, subsequently making a second bond which includes a plurality of individual length of looped insulating material interlocking together, and simultaneously both incorporating in the second band an elongate electric heating element in a non- interlocked manner, and interlocking some of the loops of the second band with loops of the first band, whereby the bands are joined together, side-by-side. A resistance element 1, Fig. 3, formed from a resistance wire wound on a core of, and covered by, glass fibre, is fed into a four-needle overlook machine, which forms three glass fibre yarns into interlocking loops around the element, which is bent back spirally upon itself so that the fourth yarn 14 can simultaneously be formed into loops interlocking with those of the adjacent section of element. The tension of the element 1 fed into the machine may be varied such that, upon release, the disc-shaped heater is distorted into a cup form (Fig. 4, not shown). Rectangular strips or sheets may be formed from a plurality of separate, sequentially formed bands (Figs. 6 to 8, not shown), some of which may lack resistance elements, thereby acting as spacers to adjust the temperature distributions; the latter may also be achieved by a non-uniform diameter of heating element or spacer, or by varying the tension of the yarns on the rate of feed of the heating elements or spacers to the interlock machine.
Patent GB-869718-A (GB)
Title: Improvements in and relating to fastener devices
IPC: F16B5/06
Filed: 1959-03-11
Abstract: 869,718. Spring clips. UNITED-CARR FASTENER CORPORATION. March 11, 1959 [March 11, 1958], No. 8489/59. Class 44. A fastener device, for assembly over the edge 48 of a support 42 for securing a moulding strip 50, for example, thereto, is formed from a single piece of resilient sheet metal bent to form a substantially U-shape clip, one arm 14 of the clip being divided into three longitudinally extending portions including a centre portion 20 for engaging the support, each other portion 22 having a bent part 24 for engaging the strip 50. Each portion 22 is divided by a slot 34 to provide a leg 26, for spacing the strip 50 from the support 42, and the part 24. The leading edge 46 of the portion 20 is flared away from the support 42 to facilitate assembling the device over the edge 48 of the support, and triangular shaped lugs 40 are provided on the leg 20 for biting into the support. The part 24 of each portion 22 has its free end bent to provide a surface 32 for resiliently engaging a flange 62 of the moulding strip 50 when the latter is placed over the device. The moulding strip 50 may be secured to the support 42 by more than one fastener device.
Patent GB-440480-A (GB)
Title: Improvements in or relating to constructional parts, or articles, manufactured from copper-zirconium alloys
IPC: C22C9/00
Filed: 1934-03-19
Abstract: Constructional parts or articles which are subjected to stresses, particularly at high temperatures, and to chemical action are made from copper-zirconium alloys containing 1-15 per cent of zirconium. The alloys may also contain up to 2 per cent of nickel, iron, cobalt, silver and beryllium, up to 7 per cent of zinc, up to 7 of tin and up to 7 of aluminium individually or in any desired combination not exceeding a total of 7 per cent.  The Specification as open to inspection under Sect. 91 states that the alloys may contain up to 2 per cent of gold, not more than 45 per cent of zinc, not more than 25 of tin, and not more than 15 of aluminium.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 29376/10, [Class 82 (i)].
Patent GB-770934-A (GB)
Title: Ultrasonic device
IPC: G10K7/00
Filed: 1955-03-25
Abstract: 770,934. Sirens. MENG, C. L. March 25, 1955, No. 8728/55. Class 13. A compression wave generator consists of a rotor D rotated about an axis 5 by a motor B and having radially extending fins E equally spaced around its periphery, a plurality of stationary compressed air nozzles G being arranged so as to direct air into the passageways between the fins as the latter pass the nozzles. The number of nozzles (e.g. thirty), the number of fins (e.g. one thousand seven hundred), and the speed of the rotor (e.g. 3600 r.p.m.) are such that the waves produced are of ultrasonic frequency (e.g. 3,050,000 c/s.). The fins may be of cylindrical or of wedge section, or may consist of saw-tooth projections on an annular ring securable to the periphery of the rotor. The nozzles G are fed from an annular conduit F.
Patent GB-673246-A (GB)
Title: Improvements in or relating to silos for the storage of grain
IPC: E04H7/24
Filed: 1950-04-06
Abstract: 673,246. Hoppers. ROESSLER,' O. H. STRUB-. April 6, 1950. [April 7, 1949] No. 8737/50. Class 78 (i). [Also in Group X] An outlet hopper for a silo (see Group X) comprises a brick part y below whichis a metal cone 1 fixed in grooves 2 in a concrete slab x which forms the lowest frame of a silo cell the side walls of which are b, any known valve is provided in the orifice 22 of the hopper. A counter-cone 3 is mounted on supports 4 resting on the cone 1, to prevent the separation of grains of different specific weights on passing through the hopper.
Patent GB-1402364-A (GB)
Title: Pumps for windscreen washer systems
IPC: B60S1/48
Filed: 1973-02-22
Abstract: 1402364 Windscreen washers TRICO PRODUCTS CORP 22 Feb 1973 [28 Feb 1972] 8778/73 Heading A4F [Also in Divisions F1 and F2] A pump driven by a compressed-air turbine and capable of being submerged within the reservoir 14, Fig. 2, of a windscreen washer comprises a pump impeller 84, Fig. 3, and a turbine rotor 82 fixed to opposite ends of a shaft 78 with a bearing 80 between, the bearing being press-fitted into the cylindrical body 52 of the pump so as to divide the body interior into a pump chamber 90 and a turbine chamber 92. Compressed air for driving the turbine is supplied via a manually-operated valve and a hose 22, and the turbine exhaust passes through a silencer 46. A hose 28 leads from the pump to the washer nozzles. The reservoir lid 38, which is secured by a threaded retainer ring 50, is provided with pairs of nipples 40, 40 , 42, 42 and 44, 44' for effecting a connection to internal hoses 28', 22' and 48.
Patent GB-1474877-A (GB)
Title: Rotatable threaded fasteners
IPC: F16C3/02
Filed: 1975-03-04
Abstract: 1474877 Screwdrivers BULTEN KANTHAL AB 4 March 1975 [8 March 1974] 8878/75 Heading B5N [Also in Division F2] A screwdriver bit 15 has an external spline drive formation comprising a cylinder with a plurality of equiangularly spaced axial grooves each defined in part by a part-cylindrical surface, the regions of intersection between the grooves and the outer cylindrical surface of the bit being sharp-edged. The grooves may be formed by a single grinding or milling operation, e.g. by a cutter 16 on a shaft 17.
Patent GB-842540-A (GB)
Title: Rotary regenerative heat exchanger
IPC: F28D19/04
Filed: 1959-03-16
Abstract: 842,540. Thermal regenerators. AIR PREHEATER CORPORATION. March 16, 1959 [March 26, 1958], No. 8951/59. Class 64(1) In a thermal regenerator of the rotary matrix type in which the rotor 10 is divided by diaphrams 16 into sectorshaped compartments for the heat transfer material (not shown), each diaphragm is hollow and fluid passages 36, 38 are provided therein on each side of a radially extending partition 34, the arrangement being such that some of the heating gas entering the regenerator through a duct 20 is directed through a port 46 and thence through the diaphragm passages before reentering the heating gas stream by way of a port 54 adjacent the cooled gas outlet duct 22. By this arrangement thermal distortion of the rotor with consequent reduction of the efficiency of the sealing means is said to be substantially eliminated. In the form shown, the diaphragm passages 36, 38 communicate with the ports 46, 54 through ducts 44, 52 formed in the rotor post 18.
Patent GB-1397558-A (GB)
Title: Ticket issuing and coin-handling system
IPC: G07B15/00
Filed: 1972-03-01
Abstract: 1397558 Coin handling apparatus NATIONAL RESEARCH DEVELOPMENT CORP 23 Feb 1973 [1 March 1972] 8968/73 Divided out of 1397556 Headings G4V and G4T Apparatus for use with coins, e.g. cash sums tendered as public transport fares, comprises a series of two or more containers and means for controlling the transfer of coins from the first of the series successively through to the last, each container being either such as to permit the visual inspection of the coin(s) therein or associated with a coin sensing device linked to a display for indicating the value of the coin(s) in the container. Disputes between a passenger and the fare collector about the amount ten. dered may be resolved by referring to the container holding the passengers money. The containers may be superposed, the top one being a tray into which a passenger deposits cash, the other containers being boxes having transparent front and back walls. The base of the tray and of each box may be pivoted by energizing a solenoid to allow the cash to fall into the next container. The apparatus may be used in the public transport ticket system disclosed in the parent Specification.
Patent GB-1519739-A (GB)
Title: Monitoring and control device for hydraulic systems
IPC: F15B19/00
Filed: 1976-03-05
Abstract: 1519739 Sampling apparatus EGLINSKI GERATETECHNIK KG 5 March 1976 [7 March 1975 (5)] 08993/76 Heading B8N [Also in Divisions F2 G1 and H1] The description relating to the sampling apparatus is identical with that of 1,519,740, but the claims relate to a monitoring or control device, which may be the sampling apparatus, and a connecting plate to permit the device to be connected to a hydraulic system. The device may alternatively be a safety valve, shut-off valve (see Division F2), a pressure indicating device (see Division G1) or a piston pressure switch (see Division H1).
Patent GB-322145-A (GB)
Title: Improvements in and relating to paper bags
IPC: B65D33/26
Filed: 1929-03-21
Abstract: 322,145. Low & Bonar, Ltd., and Clark, J. A. March 21, 1929. Paper bags; securing bags, special means for.- A multi-ply paper bag is closed at one or both ends by a reinforcing strip B which extends across the tube and has its edges folded inwards so that the folded portions b lie parallel to the sides of the bag tube A and the edges are approximately level with the edges of the sides of the tube; a line of stitches a is then passed through the double walls of the reinforcement and the walls of the bag. Adhesive may supplement or replace the stitching.