baber/WOPTO huggingface dataset:
Patent GB-120099-A (GB)
Title: Improvements in Railway Points or Switches.
Inventor: BETTS BENJAMIN BURNISON
IPC: E01B7/02
Filed: 1917-10-29
Abstract: 120,099. Betts, B. B. Oct. 29, 1917 Point-tongues, construction and mounting of.- Railway points having point tongues of less dimensions than the ordinary rails and which retain throughout their length one base flange and the major portion of the other flange, are mounted on spaced supports having rail seats of different elevations for the ordinary and point rails, the point rails being also mounted at their heel ends in a chair formed with integral means for securing them in position. In the construction described, the point tongues 13 are stated to be standard " eighty pound " rails and the ordinary rails 11 and 12 standard " one hundred pound " rails. The rail seats for the point tongues are elevated to bring the upper surface of the tongues up to the upper surface of the rails 11 and 12, and some of the seats are provided with limiting stops 38, Fig. 8, while others permit the flange of the tongue to engage the web of the ordinary rail. Fig. 2. Undercut recesses and shoulders also are provided on the chair seats for the rails 11. Fig. 10 shows the mounting of the heel end of a point. tongue 13 in jaws 25 formed integral with the chair 14.
Patent GB-821142-A (GB)
Title: Improved catalyst systems for polymerisation of unsaturated compounds
Inventor: MCGOWAN JOHN CARSWELL
IPC: C08F4/04
Filed: 1956-05-22
Abstract: Compounds other than ethylene containing the non-aromatic polymerizable group <FORM:0821142/IV (a)/1> are polymerized using as catalyst a combination of an organic peroxy compound and a heterocyclic compound consisting only of carbon, nitrogen and hydrogen, the hetero-nitrogen atom being further linked to an alkyl, alkenyl or phenyl group.  Specified polymerizable compounds are vinyl esters, e.g. vinyl acetate, allyl esters, styrene, chlorstyrenes, acrylic and crotonic acid esters, maleic and fumaric acid esters, and vinyl chloride.  The heterocyclic compound may be N-ethyl piperidine, N-phenyl piperidine, N - methyl - 1,2,5,6 - tetrahydropyridine, N-alkyl pyrrolidines, N-alkyl hexamethylene imines and the corresponding N-alkenyl compounds.  Specified peroxides are lauroyl peroxide, benzoyl peroxide, di-tertiary butyl peroxide, di-isopropyl peroxy dicarbonate, di-tertiary butyl peroxy dicarbonate, tertiary butyl perbenzoate, peracetic acid and cyclohexanone peroxide.  The Provisional Specification also describes the use of catalysts comprising organic peroxy compounds and tetrazenes, e.g. tetramethyl tetrazene-2, tetraethyl tetrazene-2, 1,4-bis-cyclopentamethylene tetrazene-2, N,N1-azomorpholine and sym.-dimethyldiphenyl tetrazene.
Patent GB-221580-A (GB)
Title: Improvements in or relating to change speed gears
IPC: B62M11/14
Filed: 1923-06-19
Abstract: 221,580. Bartlett, B. G., and Hodgkin, J. E. June 19, 1923. Variable-speed epicyclic gearing comprises a train of combined friction and toothed or shrouded toothed gears b, c, d, Fig. 4, the intermediate one c being floating or not supported on a spindle, and being automatically wedged between the other two by the reactions of the teeth and of the friction surfaces. The gear b is secured to a driving-shaft a, which may be the pedal axle of a cycle. The gear d is supported on an axle e in a driven chain-wheel &c. g and meshes constantly with a central gear n, Fig. 7. The gear n is rotatively connected constantly by a sliding clutch member h with a detent wheel j. The wheel j is kept from turning backwards by a pawl, and with the member h moved to the right of Fig. 7 against a spring x, the gear n is held fast and the gear d rolls upon it, driving the wheel g at a reduced speed. When the clutch member h is slid to the left, it engages a member 5 upon the shaft a, locking the gearing solid for a high speed. Specification 177,737 is referred to in the Provisional Specification.
Patent GB-126563-A (GB)
Title: Improvements in Pumps and Compressors.
Inventor: CROSSLEY RICHARD
IPC: F04B5/02
Filed: 1918-09-30
Abstract: 126,563. Crossley, R., and Wilson, A. Sept. 30, 1918. Piston pumps; valves, arrangement of.-A pump or compressor comprises a piston f mounted on a squared part of a rotating spindle d and reciprocated in a casing a by the engagement of a cam groove f<2> with a fixed pin f<1>. The casing has at each end a suction port c, c<1> and a delivery port b, b' controlled bv cylindrical valves, which are loose on the spindle d and are' closed at the outer end and open to the piston. Each valve has a port g<2>, g<3> which registers alternately with the suction and delivery ports. The valves are rotated by means of collars h on the spindle provided with projections which engage semi-circular ribs on the valves. This connexion enables the direction of rotation of the spindle to be reversed without changing the direction of flow. The direction of flow may be reversed by removing the cover a<2>, the collar h and piston, and turning each valve through 180 degrees on the spindle. The number of strokes of the piston for each revolution of the spindle may be varied by varying the form of the grove f<2>. The groove may be fixed and the pin f<1> mounted on the piston. The pump made by made single-acting by dispensing with one of the valves.
Patent GB-1417140-A (GB)
Title: 1-substituted-3-phthalimidoalkoxy-1h-compounds and processes  for producing same
IPC: C07D231/56
Filed: 1972-11-30
Abstract: 1417140 1 - Substituted - 3 - phthalimidoalkoxy-1-H-indazoles DELMAR CHEMICALS Ltd 30 Nov 1972 [30 Nov 1971 (2)] 15906/75 Divided out of 1417139 Heading C2C Novel compounds of Formula I wherein R is H or halogen, R 1  is alkyl, aryl or aralkyl and W is alkylene are prepared by reacting compounds of formulµ wherein X is OM and Y is ZW or X is OWZ and Y is M where M is H or a monovalent cation and Z is a reactive ester group.
Patent GB-1600453-A (GB)
Title: Data-processing system which protects the secrecy of confidential data
IPC: G06Q20/36
Filed: 1978-04-21
Abstract: A data processing system is provided which protects the secrecy of confidential data at the stages where it is formulated and transmitted to a card (first auxiliary member) having a code key thereon. The data processing system includes a data-processing machine having a device or terminal for transmitting data, including confidential data, and a plurality of first members auxiliary to the machine which are each intended to receive the confidential data from the transmitting device via the same transmission line and to process this confidential data. The transmitting device includes a plurality of second auxiliary members which correspond to respective ones of the first auxiliary members. Each pair of corresponding first and second auxiliary members include respective generators for generating first and second code keys and the system includes a means for causing one of the first code keys to correspond with one of the second code keys. One of the pair of corresponding first and second members includes modulating means to mix the confidential data with the code key corresponding to the said members of that pair to form a combined signal, while the corresponding members of the other pair include a demodulating means which reacts to the code key which has been made to correspond and to the said combined signal to reconstitute the said confidential data.
Patent GB-1111691-A (GB)
Title: Apparatus for effecting the harmonic analysis of a function
Inventor: MAX JACQUES
IPC: G01R23/00
Filed: 1965-04-23
Abstract: 1,111,691. Frequency analysis. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 23, 1965 [April 23, 1964], No. 16057/65. Heading G1U. In an apparatus for carrying out the harmonic analysis of a function f(x) continuous over a range of interest -A to +A, values of the function are stored in a digital store forming part of function generator 4, which also includes a digital to analogue converter. A reference clock 5 produces control signals for sequentially reading out the store at a number of frequencies, related to the range A, determined by the frequency divider 7. Time varying functions F k  (t) = f(<SP>tA</SP>/ K#o ) are thereby produced in sequence at the output of the function generator 4, where 1/2# o  is the fundamental frequency of the function F 1 (t). These functions are sequentially passed through a filter 11 tuned to the frequency 1/2# o  to derive the harmonics of the input function in sequence. The filter may be a synchronous demodulator.
Patent GB-572551-A (GB)
Title: Improvements in and relating to cans
IPC: B65D6/18
Filed: 1943-09-30
Abstract: 572,551. Metal cans for food etc.; packing boxes. BACH, R. G. and PATON, J. R. Sept. 30, 1943, No. 16071. [Classes 18, 66 and 94 (i)] A can for food &c. is made by press-drawing a strip or blank to form a body having a base 18, Fig. 2, integral with diverging sides 19, which are flanged at 21 and which fit a depression in a flanged lid such that the body and lid can be seamed together in a vacuum double seamer, after exhaustion which is facilitated by corrugations 22, Figs. 2 and 4, in the flanges 21 to keep the lid raised prior to seaming. The divergence of the sides 19 facilitates withdrawal of the forming-tool and permits nesting prior to filling. Ribs or corrugations 20 strengthen the base, they may locate internal "egg-box partitions, and interlock with complementary ribs, &c. in the lid of the next lower can when filled cans are stacked. A number of such stacks may be packaged by securing them, between two trays, one at the top and one at the bottom, by two or more metal straps. The cans may be of steel, blackplate, tinplate, or aluminium, &c., and the contents may be heat-treated after seaming, without external balancing pressure.
Patent GB-374261-A (GB)
Title: An improved linear dimension gauge
IPC: G01B5/08
Filed: 1931-06-02
Abstract: 374,261. Linear-dimension gauges. DAVIS, A., Chy Byhan, Mawnan, near Falmouth, Cornwall. June 2, 1931, No. 16097. [Class 106 (ii).] A gauge for measuring the diameter of boiler furnaces comprises a tube 1 closed at one end, within which slides a rod 2 having a scale marked thereon, the inner end of the rod being provided with a piston 4 fitted with a piston ring or rings 5. In the form shown, the rod is flattened along one face 3 which is provided with the scale, which may be read against an inclined edge 7 of an index plate 8 secured in the end of the tube. The plate 8 is secured by screws 9 passing through a clamping plate 10, which screws also secure a bridge-piece 13. A locking screw 11 through which passes a pin 12 passes through the parts 13, 10 and 8. A plug 14 slidably arranged in the lower end of the tube may be moved by the thumb-screw 15 to give the rod a slight initial adjustment in the tube. In a modification the rod is cylindrical throughout and an index plate having a frictional scale marked thereon is provided on the edge of a slot in the tube. In a further form the rod is cylindrical and provided with a longitudinal slot, a screw passing through the tube engaging the slot to prevent rotation of the rod and to form a locking device. Hardened steel points 6 are secured to the ends of the rod and tube respectively.
Patent GB-1303128-A (GB)
IPC: B05C19/04
Filed: 1970-04-06
Abstract: 1303128 Coating webs with particulate materials CARL FREUDENBERG 6 April 1970 [9 April 1969] 16129/70 Heading D1L Particulate material is applied to a continuous web 1 by passing the web under a rotating horizontal disc 3 onto which the material is fed and from which it is thrown onto the web by centrifugal force. For uniformity of the coating the speed of the disc (or the lowermost disc if there is more than one) should be such that particulate material thrown off the disc substantially at angle of 90‹ to the direction of motion of the web is thrown beyond the edges of the web. The material may be fed to the disc 3 from a similar disc 6 situated above it and this can in turn be supplied with material from a further disc 14 fed from a chute 15 and hopper 11, the disc diameters decreasing from disc 3 to 14. Baffles 16 and 17 deflect the material to the discs below discs 6 and 14 and baffle 12 and trough 13 collect material missing the web. A further embodiment described (Figs. 1 and 2) has disc 14 replaced by a disc on which a non-rotating spiral baffle (9) is situated and serves to feed the material through a hole (8) in the centre of the disc. The material may be a thermoplastic material and can be thus fused to the web after being applied thereto.
Patent GB-676228-A (GB)
Title: Improvements in or relating to reinforced plastic tapes for venetian blinds
IPC: E06B9/382
Filed: 1949-06-17
Abstract: <PICT:0676228/IV (a)/1> <PICT:0676228/IV (a)/2> <PICT:0676228/IV (a)/3> A plurality of threads 10, Fig. 2, are spaced in parallel array by a film or layer of plastic material 12 surrounding the threads and forming webs 11 between them.  The threads initially pass from reels 15, Fig. 1, to grooves on a drum 14 under a hopper 16 allowing a plastic film to flow over and between the threads.  A heater 18 may be used to set the plastic and the resulting product is stored on a drum 21 until it is required for use in the manufacture of reinforced plastic tapes for Venetian blinds (see Group X).  The plastic film may be formed from polyamide resins, natural or synthetic rubber, cellulose derivatives or vinyl base resins.  The film of plastic material is preferably not greater than 0.010 inch in thickness.  In Fig. 3, a layer of plastic material 13a, 13b is bonded to each side of the film to completely enclose it.
Patent GB-770813-A (GB)
Title: Means for the indirect determination of the temperature of overhead electric cables
IPC: G01K13/00
Filed: 1955-06-06
Abstract: 770,813. Electrically heated thermal images. UNION GENERALE BELGE D'ELECTRICITE. June 6, 1955 [June 4, 1954], No. 16210/55. Class 39(3) A thermal image for the indirect determination of the temperature of an overhead H.T. cable 2 is of rod-like form and comprises a small insulated wire or strip electric heater 4 of a metal having the same temperature coefficient of resistance as the metal of the cable extending within the rod-like image and capable of disipating per unit length of the image a quantity of heat equal to that dissipated per unit length of the cable under the same conditions. The insulated heater 4 is placed within a good heat-conducting  relation with a metal tube 5a of the same composition as the cable and having an external surface of the same appearance as that of the cable and the same diameter. An element 23 sensitive to temperature is placed in good heat-conducting relation with the metal 5a and is connected electrically to a temperature indicator 25. The electric heater 4 is connected to the secondary winding 17 of a H.T. transformer 18, the primary 19 of which is traversed by a current proportional to that passing through the cable, e.g. by connection to a coil 22 surrounding the cable. The heater 4 may be of the same composition as the cable, e.g. aluminium or copper, and may comprise two juxtaposed metal ribbons or wires joined at one end and wound side by side on a metal tube 5b fitting closely within the metal tube 5a, which may have a channelled surface similar, to that of the stranded cable 2. To obtain a closer approximation of the cable and the thermal image, the latter has a metal rod 26 forming a 'core of the same metal as that of the cable, e.g. copper, and the thermal image and the cable are both exposed to the same atmospheric conditions. The temperature-sensitive element 23 may comprise a thermo-electric couple or a resistance .which varies with temperature e.g. a nickel wire wound in notches in the middle length of the inner tube 5b, and is connected to a temperature indicating or recording device, to a sound or light warning device operating at a maximum temperature, or may serve as a remote control for interrupting or regulating the current in the cable. The elements 23, 25 may be replaced by a thermostat based on the expansion of a metal member which closes one or more contacts when one or more critical degrees of temperature are reached.
Patent GB-862567-A (GB)
Title: Improvements in the depolymerisation of cyclic polymers of epsilon-caprolactam
Inventor: GOODMAN DAVID RICHARD
IPC: C07D201/12
Filed: 1957-05-22
Abstract: Monomeric e -caprolactam is prepared by distilling a cyclic polymer thereof under reduced pressure in the presence of about 1-2% by weight of a strong inorganic base.  The cyclic dimer is specifically mentioned.  Sodium hydroxide is the specified base. It is preferred to heat the cyclic polymers with the base at atmospheric pressure before distilling under reduced pressure. The reduced pressure may be from 50 to 500 mm. Hg.  The reaction may be operated batchwise, semi-continuously, e.g. by distilling off about half the initial charge and then making up the liquid level with more polymer, or continuously.  The product may be purified by first extracting it with water, then distilling the water and lactam successively, fractionating the distillate and recrystallising, e.g. from cyclohexane containing 2% by volume of chloroform.
Patent GB-333950-A (GB)
Title: Improvements in and relating to appliances for playing a new or improved game
IPC: A63B59/18
Filed: 1929-05-28
Abstract: 333,950. Rimmer, H. A., and Blossom, J. B. May 28, 1929. Battledores and the like; projecting and catching appliances. A game appliance for use in projecting and catching shuttlecocks, tailed-balls, balls or other missiles comprises a bat member a held firmly against the palm of the player's hand by a band or strap b that also serves to carry a cup or other receptacle c. In a modification, the cup is connected to the bat by a stem that passes between the player's fingers and enables the band to be dispensed with.
Patent GB-1215393-A (GB)
Title: Substituted methyl n-phenyl carbamates and herbicides containing same
IPC: A01N47/20
Filed: 1968-04-05
Abstract: 1,215,393. Substituted phenyl carbamic esters. BADISCHE ANILIN- & SODA-FABRIK A.G. 5 April, 1968 [6 April, 1967], No. 16390/68. Heading C2C. [Also in Division A5] The invention relates to substituted phenyl carbamic esters of the general formula in which R denotes a halogen atom or a nitro, monochloromethyl, dichloromethyl, trichloromethyl, trifluoromethyl, methyl or mesyl group and R<SP>1</SP> denotes a halogen atom or a nitro, monochloromethyl, dichloromethyl, trichloromethy], trifluoromethyl, methyl, mesyl or methoxy group, R and R<SP>1</SP>, however, not denoting chlorine simultaneously. The compounds may be prepared by (1) reacting with phosgene a substituted aniline of the formula and reacting the resulting isocyanate of the general formula with methanol; or (2) a m-substituted nitrobenzene has the p-substituent introduced and is then reduced to the corresponding aniline (Claim 3) which is reacted with phosgene and the isocyanate produced reacted with methanol; or (3) the amino compound formed by reducing the nitro group in the compound of formula is reacted with methylchlorocarbonate in the presence of an acid-binding agent. Compound claimed per se is methyl N-(3-chloro-4-bromophenyl)carbamate. In an example methyl N-4-bromo-3-chlorophenyl carbamate is prepared by reacting methanol with 4-bromo-3- chlorophenyl isocyanate.
Patent GB-258550-A (GB)
Title: Improvements in or relating to motor fuels
IPC: C10L1/06
Filed: 1926-06-30
Abstract: 258,550. Bereslowsky, E. V. Sept. 17, 1925, [Convention date]. Motor spirit consists of gasolene, kerosene, or other low-compression fuel and mesitylene or a derivative, e.g. mono-di or tri-amino mesitylenes, or their methyl or ethyl compounds. A blending agent e.g., alcohol may be added. In an example 20 grams of diamino-mesitylene is dissolved in 20 ccs. of ethyl alcohol and mixed with 1 gallon of gasolene. The compression that may be used before causing " knocking " is thereby raised about 20lb. The mesitylene may be fed direct to the combustion chamber or the intake of the engine. The prior use of hydrocarbon fuels with an addition of coal tar naphtha, which contains mesitylenes is referred to. The Specification as open to inspection under Sect. 91 (3) (a) also specifies benzol as a blending agent. This subject-matter does not appear in the Specification as accepted.
Patent GB-749162-A (GB)
Title: Improvements in or relating to arrangements for scanning and reproducing magnetic fields
IPC: G11B5/335
Filed: 1954-06-03
Abstract: 749,162. Magnetic recording and reproducing heads. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 3, 1954 [June 6, 1953], No. 16453/54. Class 40(2) A magnetic head for scanning signals- and modulating same with a carrier A.C. for subsequent detection, has a magnet having a part comprising two parallel branches of a material with a non-linear polarization characterization and in which D.C. and the A.C. carrier is generated in such a manner that their effect is a null one at the gap, and output winding or windings on said branches imposing an equal load thereon. Fig. 2 illustrates one embodiment in which the parallel branches 4, 5 of the magnet carry coils a and b which carry A.C. from a source G and produce alternating fluxes of an intensity effecting non-linear polarization of the branches 4, 5, the direction of winding being such as to be in aiding relationship to each other but producing a null effect at the gap 3. At the same time, a D.C. bias is produced in the branches 4, 5 from a source V by coils f and g which are arranged in similar self-aiding relationship as with the coils a and b. Coils f and g may be dispensed with if an element of D.C. is introduced by way of source G. When a signal is received at the gap 3, an A.C. modulated signal may be taken from coil d by a grid 6 of a valve for amplification and thence to a circuit 10 tuned for subsequent detection. The amplification stage may be dispensed with if the coil e has an equal load imposed on it, for example, another detector, the two detected voltages being combined, if. required. Fig. 3 shows an embodiment enabling voltages induced by the fluxes to be directly detected. The branches 4, 5 are connected by a bridge 11 and coil h carrying the A.C. which thereby produces opposition fluxes in the gap 3. The branch windings k and l are connected to identical detector arrangements 12; 13 producing D.C. fluxes in the two parts of branch 4 which are equal in value but opposite in direction, thereby producing no D.C. flux in the gap 3 but imposing equal loads on the branches.