baber/WOPTO huggingface dataset:
Patent GB-833346-A (GB)
Title: An optical system for use with an ordinary film projector for projecting pictures with a relief effect
IPC: G03B35/00
Filed: 1956-02-21
Abstract: 833,346. Optical-projection apparatus. MATAGNE, A. F. Feb. 21, 1956 [Feb. 24. 1955; June 29, 1955]. No. 5332/56. Class 97(1) An optical system for use with an ordinary film projector to produce a relief effect produces two laterally displaced images of the whole film gate using differently filtered light beams, whereby, when the images are viewed through spectacles containing appropriate filters, a relief effect is obtained. The form shown comprises a tube 4 which may be attached to the objective mount and to which is secured a box 3 containing prisms 1, 2 each receiving half of the projection beam. The prisms are pivoted and may be adjusted by a pivoted screw 12 against springs 13, 14. The emergent beams are polarized by filters 5, 6 with planes of polarization at right angles. The device may be used rotated at 45 degrees about the optical axis on a projector with a double height gate for projecting a film taken in a camera with horizontal film fed in a double length gate. Another embodiment comprises a tubular mount including two deviating prisms of small angle covering the two halves of the field and two semi-circular polarizing filters, with planes of polarization at right angles, in a separate rotatable mount. Specification 5949/39 is referred to.
Patent GB-1407421-A (GB)
Title: Vibratory surface compacting machine
IPC: B06B1/16
Filed: 1972-02-04
Abstract: 1407421 Road rollers RAYGO Inc 27 Sept 1972 [4 Feb 1972] 5335/72 Heading B7H A machine for compacting soil and the like, e.g. a road roller, includes a drum 6 which is vibrated by rotating shafts 20 which carry eccentric masses 13, at least part of the masses 13 being radially movable to vary the amplitude of the vibrations. As described the drum 6 is mounted by bearings 12 (Fig. 2) on plates 10 which are connected to the frame 9 by elastic blocks 11 so that vibration is not imparted to the rest of the machine. The shafts 20 are mounted in bearings 19 in the drum 6, are connected by a tube 23 and are rotated by an hydraulic motor 22, Each shaft 20 carries an eccentric mass 13 consisting of a large fixed weight 25 on one side of the shaft 20 and a smaller movable weight 26 on the opposite side of the shaft 20. The smaller weight 26 is connected to the piston-rod 34 of a piston 35 in cylinder 33, the two cylinders 33 being connected by line 46 and valve 38 to a pressure accumulator 37 (Fig. 5). With the valve 38 closed the fluid trapped in cylinders 33 holds the weights 26 close to the shafts 20 to produce vibrations of maximum amplitude. When the valve 38 is opened by the driver centrifugal force moves the weights 26 outwardly to the position shown in Fig. 4, to produce vibrations of minimum amplitude. The weights 26 are moved back to their first position by the pressure in accumulator 37 when the shafts 20 stop rotating. The control system includes an arrangement for preventing an excessively high frequency of vibration consisting of a pressure sensitive switch 56 which stops the motor 22 when the pressure in line 46, generated by the centrifugal forces exerted by weights 26, rises above a predetermined value.
Patent GB-1487422-A (GB)
Title: Manufacture of cigarettes
IPC: A24C5/47
Filed: 1974-02-05
Abstract: 1487422 Cigarette conveyors MOLINS Ltd 4 Feb 1975 [5 Feb 1974] 05366/74 Heading A2C Apparatus for causing rod-like articles such as cigarettes to roll along a predetermined path comprises a channel having a width defined by opposed surfaces through which channel rod-like articles may be moved transversely, at least one of the surfaces being movable relative to the other surface whereby a rod-like article may be caused to roll relative to the surfaces through the channel, and means for delivering rod-like articles into the channel at an end of the channel, wherein the channel includes a first region adjacent the end and a second region on the opposite side of the first region to that end. the width of the channel in the first region being less than that in the second region. As shown in Fig. 1, a fluted suction drum 2 carries assemblies 4 towards a rolling plate 6. Each assembly 4 arrives at a point of contact with a rolling drum 8 just ahead of a portion of wrapping paper 10 carried by drum 8 through suction. Assembly 4 is stripped from drum 2 by means of fingers 6A to 6H (Fig. 3). Fingers 6A to 6H enter circumferential grooves in drum 2. Assembly 4 is supported on drum 2 at positions between the fingers and at its ends. Fig. 2 shows how each finger has an insert 12 which projects from the operative inner face of the finger towards drum 8. The channel between drum 8 and plate 6 may be 15 thousandths of an inch less than standard cigarettes. On the other hand the channel between drum 8 and fingers 6A to 6H is narrower by 5 to 10 thousandths of an inch. In a modification (not shown) there may be few fingers on the rolling plate.
Patent GB-1455089-A (GB)
Title: Electrical postiion indicator and signal recording systems
IPC: G01D3/06
Filed: 1974-02-06
Abstract: 1455089 Displacement encoder FRITZ SCHWARZER GmbH 6 Feb 1974 [28 March 1973] 05438/74 Heading G1A [Also in Division G3] Electrical signal recording apparatus comprises a galvanometer pen which is positioned with respect to a movable chart by an arrangement incorporating an optical mask containing apertures arranged in separate arrays as shown, a position indicating diaphragm Fig. 2, comprises an arcuate segment of glass or synthetic material carrying equal angular markings M in two spaced rows and markings HS denoting centre and end limits. In a modification the segment is extended as a rotatable disc. The diaphragm BS is coupled to a galvanometer 90, Fig. 1 and the marking M, through a stationary mask, are sensed by photo-transistors or photodiodes LA the outputs from which are fed to a forwards-backwards counter 30. The marking HS is used to reset the counter 30 to zero at each crossing. The contents of the counter is fed through a D/A converter 20, zero-adjusted at 40, and a filter 10 as an input signal to a comparator 60 in which it is compared with a second analog input signal, from an amplifier 50, which is to be recorded. The difference between the input signals is fed through a switching amplifier 70 which drives the galvanometer pen system in a pulsating manner through a thermoswitch 80. The filter network 10 provides, by differentiation, correction signals for speed and/or acceleration of the galvanometer pointer. In an alternative arrangement, a digital signal to be recorded is compared with the contents of counter 30 in a digital adder and the output of the filter network 10 being combined with the output of D/A converter responsive to the output of the adder.
Patent GB-269288-A (GB)
Title: Improvement in means for suspending curtains
IPC: A47H13/10
Filed: 1926-02-26
Abstract: 269,288. Rees, W. A. Feb. 26, 1926. Curtains, suspending.-A flat strip curtain rail A is formed with side webs B forming tracks for a grooved roller C carried by a bent wire frame D to which the curtain is secured. In place of a grooved roller, a pair of disc rollers may be employed. In a modification, the grooved rollers C &c. is carried by a sheet metal frame E, the axle g of the roller engaging in slots h in the frame. The rail mav be secured to the window frame either direct or through wood fillets. According to the Provisional Specification, one disc of the grooved or double wheel may rotate independently to facilitate running around bends in the rail.
Patent GB-379630-A (GB)
Title: Manufacture of acid wool dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1932-02-24
Abstract: Blue wool dyes are obtained by condensing a 1 - amino - 4 - halogen - anthraquinone - 2 - sulphonic acid with a 2-amino-5 : 6 : 7 : 8-tetrahydronaphthalene - 4 - sulphonic acid amide in which one or each of the hydrogen atoms of the amide group is exchanged for a substituted or unsubstituted aliphatic or hydroaromatic hydrocarbon radical, preferably in presence of an acid binding agent and a copper compound or other similar catalyst.  The sulphonic acid amide employed may be obtained by causing 2-nitro-5 : 6 : 7 : 8-tetrahydro - naphthalene - 4 - sulphochloride to react with the desired amine and reducing the nitro group.  According to examples, the sodium salt of 1-amino-4-bromo anthraquinone-2-sulphonate is condensed with 2 - amino - 5 : 6 : 7 : 8-tetrahydronaphthalene - 4-sulphonic acid dimethylamide, methylamide, ethanolamide, cyclohexylamide and diethylamide in presence of cuprous chloride and sodium carbonate.
Patent GB-108289-A (GB)
Title: An Improved Vaporizer and Atomizer for Internal Combustion Engines.
Inventor: HANMAN JOHN LEPINE
IPC: F02M1/00
Filed: 1917-04-20
Abstract: 108,289. Hanman, J. L. April 20, 1917. Vaporizers, external. - Two coaxial cylindrical chambers a, b, between which a heating-fluid circulates are put together as shown by screwing. The inner chamber a contains three baffle-plates i, j, k with ribbed cones i<4>, k<3> and perforations or notched edges, the plates being spaced by distancepieces m. The centre plate has a gutter j<2> in which fuel accumulates to facilitate starting.
Patent GB-511694-A (GB)
Title: Compositions comprising cellulose esters or cellulose ethers
IPC: C08K5/20
Filed: 1938-02-22
Abstract: 511,694. Cellulose ethers and esters ; acetylated amines. I.G. FARBENINDUSTRIE AKT.-GES. Feb. 22, 1938, No. 5581. Convention date, Feb, 22, 1937. [Classes 2 (ii) and 2 (iii)] Cellulose ester or cellulose ether compositions are plasticized with compounds of the formula where R1 stands for an alkyl, aralkyl, cycloalkyl or aryl hydrocarbon radicle and R 2 stands for an alkyl, aralkyl or cycloalkyl radicle containing at least one -OOC.CH3 group. Suitable plasticizing agents of this type are acetoxyethyl-acetanilide, acetoxybutylacetanilide, acetoxyethyl-butylacetamide, the product obtained by acetylating a mixture of monooxyethylated xylidines, the substance obtained by acetylating the product of the reaction between aniline and monochlorodiglycol, and the substance obtained by acetylating the product of the reaction between aniline and monochloroglycerine or glycide. Cellulose derivatives mentioned are nitrocellulose and cellulose acetate. In one example, a mixture of nitrocellulose, cellulose acetate, acetoxybutylacetanilide and dimethylphthalate is worked up into a homogeneous plastic mass. On adding filling agents, such as wood powder, lithopone, or ferric oxide red, and rolling, a coating material which forms a substitute for linoxyn linoleum is obtained.
Patent GB-816600-A (GB)
Title: Carboxylated cyclopentadiene derivatives
Inventor: WIESE HERBERT KARL
IPC: C07C61/40
Filed: 1958-02-21
Abstract: The invention comprises polycyclopentadiene monocarboxylic acids of the general formula <FORM:0816600/IV (b)/1> where one R1 is carboxyl and the other R1 and the R groups are hydrogen, chlorine, bromine, iodine, fluorine or alkyl groups of 1 to 4 carbon atoms and n is an integer from 0 to 4. The compounds may be prepared by mixing a polycyclopentadiene dicarboxylic acid with at least two mols. of a cyclopentadiene compound, heating the mixture to between 75 DEG  and 250 DEG  C. and then separating the monocarboxylic acid.  The dicarboxylic acid reactant may be of the type <FORM:0816600/IV (b)/2> which is described in U.S.A. re-issue Specification 24,123 and which may be regarded as a dimer of the cyclopentadiene monocarboxylic acid.  When the dimer is heated it tends to depolymerize and in the presence of a cyclopentadiene compound undergoes a Diels-Alder type addition with the cyclopentadiene compound as the dienophile to give the compounds of the invention. The cyclopentadiene compound may be a compound such as cyclopentadiene, methyl or dimethyl cyclopentadiene, hexachlorocyclopentadiene or polymers such as dicyclopentadiene which depolymerize under the reaction conditions.  The preferred conditions are reaction at between 135 DEG  and 190 DEG  C. using about 5 to 10 mols. of cyclopentadiene compound and the reaction may be carried out at pressures from about atmospheric to about 50 p.s.i.g.  In the examples, dicyclopentadiene dicarboxylic acid is heated with dicyclopentadiene, dimethyldicyclopentadiene and hexachlorocyclopentadiene.  The monocarboxylic acids of the invention may be converted into their salts, e.g. Mn, Co and Pb salts, which may be used as paint driers.  The chlorinated products or their esters or salts, e.g. Ca, Cu, Hg, Pb, As salts, may be used as fungicides, herbicides and insecticides.
Patent GB-983978-A (GB)
Title: Improvements in or relating to cable pulling devices
Inventor: LANUM WILLIAM JOSEPH
IPC: H02G1/08
Filed: 1964-02-11
Abstract: 983,978. Cable grips. G. A. M. PETERSEN. Feb. 11, 1964, No. 5709/64. Heading F2X. [Also in Division H2] In a gripping device for a cable with a central strengthening core, the central core is held in a sleeve 16, bored to fit over the core at one end and flattened and formed with an eye 21 at the other, and the outside of the cable is held in a stocking-type wire mesh grip 17, the constituent wires of that grip being woven into a pair of eyes 23 at one end. In use, the sleeve 16 is swaged on core 14 at depressions 18. The stocking type grip is first compressed and slipped over the cable and then extended so that it contracts radially and grips it. The eye 21 of the sleeve and the eyes 23 of the grip are arranged to be in alignment and the loop 26 of the pulling rope is passed through them.
Patent GB-362777-A (GB)
Title: Improvements relating to flushing cistern valves
IPC: E03D1/30
Filed: 1931-02-24
Abstract: 362,777. Valve discharge water-waste preventers. COCKBURN & CO., Ltd., M. and LEISHMAN, D., Gowanbank Iron Works, Falkirk, Stirlingshire. Feb. 24, 1931, No. 5743. [Class 26.] The stem 6, Figs. 1 and 4, of the valve 8 of a flushing cistern carries a piston working in a dashpot cylinder 4, which is open at the top, and has a small opening in or near the bottom, preferably constituted by a clearance 5 around the stem 6. The piston is constituted by a flexible washer 9a, or is provided with a non- return valve 10, the arrangement being such that the valve has a rapid upward and slow downward movement. A valve cage 3 is provided.
Patent GB-1166968-A (GB)
Title: A Device for Eliminating Over-Correction of Vehicle Trim During Acceleration or Brake Application
IPC: B60G21/10
Filed: 1968-02-05
Abstract: 1,166,968. Controlling vehicle trim. REGIE NATIONALE DES USINES RENAULT AND AUTOMOBILES PEUGEOT. 5 Feb., 1968 [15 Feb., 1967], No. 5753/68. Heading B7D. In a device for preventing hydraulic or pneumatic levelling means associated with the front and rear suspensions of a vehicle from undesirably influencing the longitudinal trim of a vehicle during acceleration and braking, a reservoir 1 containing a mass of oil H is divided by a partition 2 which is displaceable by the oil during acceleration or braking to actuate signal transmitting means controlling operation of the levelling means. As shown the partition 2 is pivotable about a transverse axis 3 against the resistance of centralizing springs 7 and to an extent limited by stops 9. An upward extension 4 of the partition carries balance weight 8 arranged to prevent displacement of the partition by inertia or gravitational forces acting directly thereon. When the partition 2 is displaced in either direction due to surging of the oil H one of switches 10 is closed by engagement of a weight 8 with a knob 11 to energize a solenoid which displaces a valve 17 to isolate a port 21 connected to the suspension means from a port 19 connected to the level control means, and to vent the port 19 to atmosphere through a port 20. An orifice 24 in the partition 2 permits the oil levels in the chamber 1 to equalize after a predetermined interval when the vehicle is on a gradient so that operation of the levelling means is not prevented thereon. An additional switch 22 actuated by the brake pedal 23 ensures that the solenoid is energized whenever the brake pedal is depressed. In another embodiment, Fig. 3 (not shown), the reservoir is divided by a flexible partition.
Patent GB-699795-A (GB)
Title: Improvements in or relating to television systems
Inventor: JESTY LESLIE CONNOCK
IPC: H04N3/34
Filed: 1950-03-07
Abstract: 699,795. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 3, 1950 [March 7, 1950], No. 5788/50. Drawings to Specification. Class 40 (iii). In an interlaced scanning television receiver, the spot by means of which the picture is built up is subjected to a high-frequency wobbling deflection of an amplitude such that, in any one field, the whole picture area is explored and the line structure is blurred so that each single field has the apparent structure of a complete interlaced picture. The arrangement is stated to reduce flicker and a number of associated defects. In a conventional double line interlaced scanning system, the spot is made small, about half the normal line width, and is subjected to a high-frequency wobbling deflection in a direction transverse to the lines. The amplitude of the deflection is made approximately equal to the line spacing in a complete frame whereby each line takes on the appearance of a pair of lines and the line structure simulates that of a complete frame. Preferably the deflection is in accordance with a square wave although satisfactory results may be obtained by the use of a sinusoidal wave or a sinusoidal wave plus the third harmonic. In a double line/double dot interlaced system, the spot is subjected to a wobbling deflection transverse to the lines as above, and the line scan is effected so that a pair of dots is produced corresponding to each picture point or dot at the transmitter. Where the dot pattern is produced by superposing, a high-frequency saw-tooth wave on the line deflection, the double dots at the receiver are produced by causing the receiver high-frequency saw-tooth to have double the frequency of that at the transmitter. Alternatively, where the dot structure is produced by sampling, the receiver sampling frequency is made twice that of the transmitter. Synchronism of the dot sequence between transmitter and receiver may be controlled by the frequency difference between the sound and vision carriers. When the invention is applied as above to a double line/double dot system, each transmitting picture point or dot in any one field scan is represented by four points at the receiver and each field takes on the appearance of a complete frame.
Patent GB-698794-A (GB)
Title: Improvements in or relating to stanchions, beams, roof girders, masts, electric transmission towers and like supports
IPC: E04C3/04
Filed: 1949-03-03
Abstract: 698,794. Stanchions and girders. ATKINSON, W. O. March 23,1950 [March 3, 1949], No. 5791/49. Class 20(ii) A stanchion, girder &c. comprises a pair of channel section booms 1 connected by angle section braces 2 arranged back to back at 45 degrees. to the booms, mitred at the ends and secured to the beams by fillet-welds across the booms and to each other by welding their edges where they intersect. Stiffening plates 6 are welded to the ends of the booms. The braces of a girder may be crossed by further braces forming a lattice girder.
Patent GB-176009-A (GB)
Title: Improvements in apparatus for economically working condensing steam engines or turbines
IPC: F01B25/00
Filed: 1922-02-27
Abstract: 176,009. Vianello, E. Feb. 25, 1921, [Convention date]. Engines working on special systems or cycles.-Relates to steam engines or turbines which are made to work on a Carnot cycle by taking a portion of the exhaust steam from the condenser and adiatatically compressing it, together with the water, to the boiler pressure, the compressed fluid passing to the boiler. According to the invention, a centrifugal compressor, fed with steam from the condenser and with water from the hot well injected near the suction end, discharges into a receiver which is provided with means for discharging any air. An auxiliary turbine 2 drives a multistage compressor 1 which takes a portion of the exhaust steam from a main condenser 5, and compresses it to boiler pressure, water from a hot well 6 being injected through atomizers 11, 11<1>, 11" at various stages of the compressor so as to reduce the fluid practically to liquid at boiler pressure. The fluid is led to a receiver 3 and the water fed to the boiler, any steam or air being used in a stage of the auxiliary turbine 2.
Patent GB-1205893-A (GB)
Title: Process for the production of composite articles provided with covering layers
Inventor: ANDRES KARLHEINZ
IPC: E04C2/16
Filed: 1968-02-06
Abstract: 1,205,893. Laminates. FARBENFABRIKEN BAYER A.G. 6 Feb., 1968 [13 Feb., 1967], No. 5874/68. Heading B5N. Boards or shaped articles are produced by applying heat and pressure to a mixture of a particulate organic or inorganic water-containing material and one or more polyisocyanates packed between water-containing covering layers. The latter may be of wood veneer or a cellulosic product or a synthetic material (of which many examples are given), which may be reinforced with glass fibres, or plasterboard, and if not naturally water-containing, may be pre-stored in a moist atmosphere or have an aqueous film applied thereto. The particulate material may be wood shavings, sawdust, cork dust, fibre flue, short-fibred sisal, cotton or viscose material, fibres of asbestos or glass or quartz powder. The polyisocyanates, of which many examples are given, preferably constitute between 7 and 10% by weight of the mixture. The mixture may also contain fillers, solvents, catalysts, softeners, pigments and/or fungicides.
Patent GB-700375-A (GB)
Title: Process for the manufacture of phosphoric acid and apparatus suitable for carrying out the process
IPC: C01B25/22
Filed: 1951-03-13
Abstract: <PICT:0700375/III/1> In the production of phosphoric acid wherein a mixture of crushed phosphate rock and sulphuric acid flows continuously through successive reaction zones, at least part of the exothermically heated magma of at least one zone is subjected to a partial vacuum in a chamber separated from the zone at a pressure lower than the water vapour pressure of the heated magma, to evaporate water and reduce the temperature, the cooled and concentrated magma being returned to one or more reaction zones. Thus, acid and rock, mixed in tank 1, are fed through tanks 3, 4, 5, a fraction thereof rising through pipe 6 into chamber 7 partly under the action of reduced pressure maintained by vacuum pump 11 and condenser 13, and partly under the action of pump 8.  The cooled concentrated mixture returns to the tanks through pipe 10.  The mixture, passes to a final tank 14 whereupon it is pumped and sucked into a second evaporating chamber 18 by pump 16, and vacuum pump 22. A condenser 20 is provided.  The temperature of the magma is thus maintained at 60-80 DEG C. during reaction, being finally reduced to 40-45 DEG C. before passing to filter 23 The apparatus is suitable for use in other systems wherein a solution is to be cooled by evaporation.