baber/WOPTO huggingface dataset:
Patent GB-774758-A (GB)
Title: Moisture control apparatus for paper drying
IPC: G05D22/02
Filed: 1955-08-18
Abstract: 774,758. Moisture-control in drying paper. FOXBORO CO. Aug. 18, 1955 [Aug. 31, 1954], No. 23887/55. Class 96. The temperature of the drying cylinders 10 of a paper-making machine is controlled by a pneumatic system operating to control the steam supply &c. in response to changes in the moisture-'content of the paper leaving the calender 15, the two plates 16 of a condenser for sensing the moisture-content resting side-by-side on the paper and being connected with a moisture-controller 18, the output of which is in the form of pneumatic pressure applied by a pipe 19 to adjust the set-point of a temperature-controller 20 for the steam valve 23; auxiliary connections 21 being provided for maintaining a stand-by condition when, due to paper breakage, the paper no longer contacts the sensing plates 16, whereupon the primary temperature control is inoperative, and a secondary system comes into operation to maintain the temperature at a lower, stand-by value such that the paper is quickly brought to the required moisture content after re-threading, with minimum waste, a pneumatic capacity " memory " tank being used. The pneumatic system includes a nozzle-baffle unit, the spacing apart of the nozzle and baffle producing pneumatic pressure changes. Specifications 591,270, [Group XXIX], and 731,133, [Group XXXVI], are referred to.
Patent GB-447648-A (GB)
Title: Method and means for weighing railway vehicles
IPC: G01G19/02
Filed: 1935-08-26
Abstract: 447,648. Weighing - apparatus. BOHMER, A., 22, Eichendorffstrasse, Magdeburg, Germany. Aug. 26, 1935, No. 23905. [Class 143] A portable apparatus for ascertaining the weight of rail vehicles by weighing the wheel pressures comprises a base or frame for adjustment to the rail, a wheel lifting and load bearing lever adjustable in relation to the base or frame and a beam weighing or load indicating mechanism carried by the base or frame to which the load is transferred by the lifting lever. The device comprises a frame 1 supported at its front end by a pair of arms 2 provided with hooks 40, Fig. 5, extending over the rail head and with wedges 42 to adjust the position of the arms 2 above the rail. The wheel rim is engaged by a knife-edge 10 on one end of a lever 6, the other end of the lever being pivotally supported by a screw spindle 16 adjustable vertically by a hand wheel 17. The load on the knife-edge 10 is transmitted by a knife-edge 7 to compound levers 9, 22 connected to a steelyard 23. The rear end of the frame is supported above the ground by a plate 3 and screw spindle 4 and may be adjusted vertically by means of a hand wheel 5. Water levels 43, 44 are mounted on the frame 1 and the lever 6 respectively. In using the device, the knife-edge 10 is brought to bear against the vehicle wheel by forcing in the wedges 42, the frame 1 is brought to the horizontal position by turning the hand wheel 5 and the vehicle wheel is raised from the rail by turning the hand wheel 17 until the lever 6 is in the horizontal position as indicated by the water level 44 or by a fixed tongue on the frame. The wheel pressure is ascertained by adjusting the steelyard poise. Preferably, the two wheel pressures on first one axle and then the other are ascertained by the simultaneous use of two of the devices, or the wheel pressures first on one side of the vehicle and then on the other side are ascertained by the simultaneous use of a number of the devices. Transporting wheels 25 and handles 27 are provided.
Patent GB-1237885-A (GB)
Title: Liquid phase production of a solution of a percarboxylic acid
Inventor: FLETCHER JOHN VINCENT
IPC: C01B15/10
Filed: 1968-05-20
Abstract: 1,237,885. Percarboxylic acid solutions. PETROCARBON DEVELOPMENTS Ltd. 19 May, 1969 [20 May, 1968], No. 23938/68. Heading C2C. A percarboxylic acid solution is prepared by replacing the solvent in a solution of H 2 O 2  in isopropanol with an ester solvent for H 2 O 2  having the formula R-COOR<SP>1</SP>, in which R and R<SP>1</SP> are each C 1-5  alkyl which may be substituted with at least one electrophilic group, by adding the ester solvent and subsequently distilling to remove the isopropanol and reacting the resulting H 2 O 2  solution with at least one carboxylic acid of the formula R 1 COOH, in which R 1  is H, phenyl or C 1-5  alkyl which may be substituted by at least one electrophilic group, to give the percarboxylic acid solution, with the proviso that when the ester solvent forms an azeotrope with the isopropanol the azeotrope must have a lower b.pt. than isopropanol and when it does not form an azeotrope it must have a higher b.pt. than isopropanol, the process being carried out in the absence of heavy metal ions and under conditions minimizing decomposition. The starting solution of H 2 O 2  is preferably obtained by oxidizing, in the liquid phase, isopropanol with oxygen at elevated temperature and removing acetone from the reaction product. The ester solvent may be isopropyl acetate or n-pentyl acetate and the carboxylic acid may be acetic acid.
Patent GB-207630-A (GB)
Title: Electrolytic gas generating systems
IPC: C25B9/20
Filed: 1922-09-04
Abstract: 207,630. Scott, J. P. Sept. 4, 1922. Oxygen and hydrogen, generating; electrolytes, treating non-chemically.-In an apparatus for generating oxygen and hydrogen, the oxygen carrying with it some of the anolyte passes from the anode chambers of a generator 10 by pipes 17 to a collecting pipe 18 connected to a separator 11 bv a pipe 22 entering below the water level and also by pipes 19, 20 entering above the water level. The separated liquid leaves by an upstanding pipe 28<a> and returns to the anode chambers by pipes 28 - - 32. The amount of water electrolysed is restored to the vessel 11 from a chamber 13 by pipes 47, 48, back-flow of electrolyte being prevented by a check-valve 51. The gas passes from the separator to the chamber 13 where it is washed, entering below the waterlevel, and passes thence to a storage chamber. A similar circulation and delivery apparatus are provided for the catholyte and hydrogen. The chamber 13 and the corresponding chamber in the catholyte system are connected at the bottom by a horizontal pipe connected by a central vertical pipe to a feed-water supply chamber in which the level is maintained constant by a float-valve. The separator 11 and the catholyte separator may also be connected at the bottom by a horizontal pipe. The gas-inlet pipe of the chamber 13 may be of adjustable depth as at 41a, and that on the hydrogen side is preferably lower; it is stated that this causes a greater proportion of feedwater to enter on the cathode side to counteract the concentration produced by the electrolysis. A filter screen 68 consisting of several sheets of metal gauze welded at their edges to a ring 69 is clamped between two parts of the separator 11. A similar screen is provided in the chamber 13. Insulating sections such as 25, 26 may be connected in various parts of the pipe system. A thermometer 23 may be inserted in the pipe 22. The section 25 is of glass and serves as a gauge. The pipes and chambers may be lagged to conserve heat. When the apparatus is worked as the off-peak load of a supply system, heaters such as H may be provided to establish rapidly the temperature of maximum efficiency. Hand valves may be provided at 72 and other parts of the system. The generators may be mounted on wheeled trucks 81. They are connected in series by expansible loops 16.
Patent GB-250829-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/20
Filed: 1925-09-26
Abstract: 250,829. Hejma, V. Sept. 26, 1925 Endless-track vehicles.-The rigid guide-frame for the endless track comprises two similar members 1, 2, Fig. 2, disposed facing each other so that they form an inner channel for the chain 8 to which the tread carriers 7 are pivoted and an outer channel in which guide rollers 9 on the tread carriers run. The guide-frame members may be rigidly secured to the vehicle by supports 3, Fig. 1, or they may be pivoted thereto so as to rock in a vertical plane, being also connected to the vehicle by a telescopic spring connection 12. The tread plates 5 may be fixed to the tread carriers as shown in Fig. 2, or, as shown in Fig. 3, they may be fixed to two-armed levers 6<1>, which are pivoted to the tread carriers and are also provided with a resilient connection 14.
Patent GB-885316-A (GB)
Title: Lamp shade or like ornamental object
IPC: F21V1/00
Filed: 1959-07-14
Abstract: 885,316. Lampshades. COLLINS, W. July 7, 1960 [July 14, 1959], No. 24140/59. Addition to 857,407. Class 75(2) The method of making a lampshade or like article as described in the parent Specification is modified by punching out a line of holes with or without a line or lines of slits to effect the weakening of the band of material transverse to the pleats. Two lines of holes may be provided staggered so that the holes 6, Fig. 4, of one line are situated on the inwardly extending apices of the pleats and those 7 of the other line are situated on the outwardly extending apices. Holes 9, Fig. 3, and slot forming apertures 10 are punched through the pleats at the upper end and holes 9 at the lower end and the shade is assembled on two rings 11, 12 joined by the rods 13 bent inwards at the level of the weakened band, the slots 10 engaging ring 11 and the pleats being gathered in adjacent the ring 12 by a cord through the holes 9. The weakened band 5 is drawn in by an ornamental band 8 round a smaller diameter ring 14 which fits into the slots formed by the line of holes 6 and which may be attached to an electric light fitting.
Patent GB-669209-A (GB)
Title: Improvements in or relating to a method of and apparatus for recovering sulfur values from acid sludge from petroleum refining
IPC: C01B17/58
Filed: 1949-09-20
Abstract: <PICT:0669209/III/1> Sulphur values are recovered from acid sludge from petroleum refining, by feeding the sludge which may be preheated to about 87.5 DEG C. on to an incandescent bed of coke maintained at such a temperature that the mixture of sludge and coke is above 260 DEG C. agitating the coke bed and pyrolyzing the sludge to obtain sulphur dioxide which may be scrubbed, dried and catalytically converted to sulphur trioxide for sulphuric acid manufacture.  The sulphur dioxide gas may also be treated after scrubbing by passage through a further incandescent coke bed at 650-760 DEG C. to obtain a sulphur containing vapour which may be employed for the production of carbon disulphde or the sulphur recovered therefrom.  Liquid sulphur, spent alkylation acid or hydrocarbon may be mixed with the sulphur dioxide prior to reduction in the second coke bed and the effluent containing sulphur, sulphur dioxide and hydrogen sulphide may be subjected to catalytic conversion employing alumina catalyst to obtain further sulphur.  Alternatively the reduction is omitted and hydrogen sulphide from an extraneous source is mixed with the sulphur dioxide prior to entering the catalytic converter.  The hydrogen sulphide may also be formed by mixing the sulphur dioxide with oil vapour and subjected the mixture to partial combustion, preferably to form a gas having a hydrogen sulphide/sulphur dioxide ratio of two to one, which is then fed to the catalytic converter.  Apparatus suitable for carrying out the pyrolysis of the sludge is shown in Fig. 1 where sludge is fed through heat insulated pipe 49 on to an incandescent coke bed 35 stirred by rotating arms 19 with fingers 33. Air is admitted from pipes 41, 43, 45 and the sulphur dioxide formed withdrawn at 53.  For discontinuous operation air is periodically shut off and purging steam admitted through pipe 47.  If sulphur vapour is required, a double bed kiln may be employed the sulphur dioxide and coke from the upper bed passing to the lower bed when the sulphur dioxide is reduced to elemental sulphur.
Patent GB-154174-A (GB)
Title: Autoregulating apparatus for brakes of railway and like vehicles
IPC: B60T8/18
Filed: 1920-08-19
Abstract: 154,174. Hallot, P. Nov. 19, 1919, [Convention date]. Addition to 139,818. Brakes, arrangement and disposition of; relay or power apparatus.-The Specification as open to inspection under Sect. 91 (3) (a) describes (1) transmitting-mechanism for the brakes of motor road vehicle steering wheels, (2) means for utilizing power from motor-vehicle driving mechanism to assist the operation of the brake pedal. (1) The brakes of the steering wheels are each operated by a cable passing through the steering pivot of the axle-end or the arrangement shown in Fig. 13 (Cancelled) may be adopted in which the transmission of the braking power is effected through two ball and socket joints 173, 175 connected by a link 177 disposed vertically above the steering- pivot. (2) Figs. 19 (Cancelled) and 22 (Cancelled) show means for assisting the operation of the brake pedal by the power driving the vehicle. The pedal operates one end 437<1> of a curved member 437 pivoted at 442 within a drum 430 driven from the engine, and the braking power is transmitted from the central shaft h through differentials d on cross-shafts towards the front and rear of the vehicle for equalizing the brake pressures on the wheels. In a number of modifications of which the description is obscure, the drum 430 is only driven when the speed of the driven parts is sufficient to cause centrifugal masses to grip the inner face of the drum. This subject-matter does not appear in the Specification as accepted.
Patent GB-444627-A (GB)
Title: Improvements in shedding mechanism for circular looms
IPC: D03D37/00
Filed: 1934-08-22
Abstract: 444,627. Circular looms. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and HALE, F. C., c/o British Celanese, Ltd., Spondon, near Derby. Aug. 22, 1934, No. 24204. [Class 142 (ii)] Selvages, forming.-Doup selvages are formed in tubular fabric, Fig. 6, by passing alternate warp threads B adjacent the line C along which the fabric is to be cut between the dents 42, Fig. 3, of a closed comb, the other threads A passing through the eyes of needles 37. The comb moves circumferentially of the loom to bring the threads B alternately to one side or the other of the threads A. The shedding is effected by shedding wheels 29, 30, as described in Specifications 441,012 and 441,082 while the shuttles are operated by vane wheels.
Patent GB-1423627-A (GB)
Title: Compression springs
IPC: B61F5/08
Filed: 1973-05-21
Abstract: 1423627 Elastomeric springs FIRESTONE TIRE & RUBBER CO 21 May 1973 [14 June 1972] 24218/73 Heading F2S A compression spring comprises a body 22 of elastomeric material having an axis 34 and being reinforced against lateral expansion under axial compression by circumferentiallyextending and resiliently expansible cord ply material 23, the cross-sectional area of the body 22 reducing at one axial end at least. The body may be cylindrical, Fig. 2, frustoconical, Fig. 11 (not shown), barrel-shaped, Fig. 12 (not shown), or oval, Fig. 13 (not shown), and may have an axial bore 35. The reducing cross-section may be frustoconical 29, 30, Fig. 2, arcuate 41, 51, Figs. 6 and 7 respectively (not shown), or relieved outwardly from the axis 61, Fig. 8 (not shown). The cord ply material 23 may comprise a plurality of reinforcing layers 24, 25 of parallel cords 26 extending at an angle to the axis 34 of the body 22, Fig. 3 (not shown).
Patent GB-847365-A (GB)
Title: Improvements in or relating to anti-dazzle spectacles
IPC: G02C7/16
Filed: 1955-08-24
Abstract: 847,365. Goggles. JARDINE, A. W. Nov. 26, 1956 [Aug. 24, 1955], No. 24397/55. Class 97(1) A device for obviating or reducing glare comprises a shield to be mounted in front of the eyes in the manner of spectacles and having one or more slit like aperatures which extend across both eyes (Fig. 1) except for a possible bar or bars 22, Fig. 3, across the same close to the nose, the total width of which slit in a vertical direction is small enough to effectually limit glare by cutting off light rays which would enter the eye from directions above or below a narrow zone in the direction in which vision is required, the slit or slits being long enough in a horizontal direction to allow full width of vision to both eyes. Specifications 401,083 and 640,689 are referred to.
Patent GB-656877-A (GB)
Title: Improvements in, or relating to, combs
IPC: A45D24/04
Filed: 1947-09-06
Abstract: 656,877. Combs. DAVITCHO, S. I. Sept. 6, 1947, No. 24574. [Class 131] A comb comprises a back member, formed with at least one longitudinal recess on its underside or with at least one opening which extends through the back from the top to the underside, and one or more teeth carriers detachably assembled within the recess or opening and spring-loaded to move transversely of the length of the recess or opening when the comb is in use. As shown the comb back 1 is provided with cylindrical recesses 3 in each of which a looselyfitting teeth carrier 4 is slidably received. The sides of the carrier 4 are flattened at spaced intervals, at 6, and provided with transverse grooves 7 in which springs 8 are housed. The undulating line formed by the free ends of the teeth 10, 11, 12 is staggered in adjacent rows to aid the combing effect. In modifications the carrier may be sectional or may be retained in the recesses of opening by resilient clips, tension springs, spring-pressed balls or clamping members, or elastic material, e.g. rubber may form the back or an insert in the back.
Patent GB-1529133-A (GB)
Title: Floating roof of a tank for storing liquids
IPC: B65D88/34
Filed: 1977-06-13
Abstract: 1529133 Floating tank roofs GOSUDARST PROEKT KONSTRUKT INST PROEKT TEKH MONTAZHA LEG I PISCHE PROMYSHLEN 13 June 1977 [14 June 1976] 24618/77 Heading E1T A floating storage tank roof comprises a resilient disc shaped diaphragm resting on a framework 15 and attached around its circumference to an annular seal 4 comprising a plurality of pivotally interlinked members and further attached to a central portion 5 guided on and displaceable along an upright support 6. The diaphragm is hollow and corrugated radially and circumeferentially providing a cellular structure. The framework comprises a plurality of radially disposed telescopic arms 18 attached at one end to the central pontoon and resiliently connected at the other end to the seal 4. Rollers 22 may run on azimuthal guide rails inside the tank. The pontoon may be pressurised and in communication with the inflated cells of the diaphragm. The tank may contain a superatmospheric pressure and contain wine or petrol.
Patent GB-867521-A (GB)
Title: Process for the dyeing of cellulosic textile materials
IPC: D06P3/66
Filed: 1957-08-02
Abstract: 867,521. Dyeing or printing cellulosic textiles. CIBA Ltd. Aug. 2, 1957 [Aug. 10, 1956], No. 24633/57. Class 15(2). Cellulosic textile materials are dyed or printed by applying an aqueous solution of a watersoluble chromium or cobalt complex compound of an azo dyestuff containing at least one 2 : 4- dichloro-1 : 3 : 5-triazine radical, at 20‹-50‹C., and fixing the dyestuff on the textile in the presence of an acid-binding agent which reacts in water more alkaline than does sodium carbonate, e.g., an alkali-metal or alkaline-earth metal hydroxide, trisodium phosphate or potassium cyanide. The dyebath may contain neutral inorganic salts such as an alkali metal chloride or sulphate and the acid-binding agent may be applied to the dyebath at the outset or added gradually during the dyeing process. As applied to dyeing on the foulard or to printing, the acidbinding agent may be added to the impregnating liquor or printing paste, or alternatively the acidbinding agent may be subsequently applied to the impregnated or printed textile and a heating or steaming step then applied to fix the dyestuff. Specification 797,946 is referred to.
Patent GB-850513-A (GB)
Title: Improvements in or relating to protective covers
Inventor: JERVIS FREDERICK VINCENT
IPC: B60J11/00
Filed: 1955-08-26
Abstract: 850,513. Tents. PROTECTION DEVELOPMENT Ltd. Nov. 26, 1956 [Aug. 26, 1955], No. 24657/55. Class 20(1) [Also in Group XXXII] As shown in Fig. 1, the rear of a lorry has a cover 6 supported by a network of inflatable tubes 1, 2 and 3, the bounding tube 3 being contained within a trough 4 mounted on the lorry, straps or guys 5 being also provided. The tube system may conform closely to the contours of a vehicle &c. to be protected as shown in Fig. 6. The tubes may be duplicated or triplicated, or divided into separate valve-connected compartments to guard against air leakage and collapse. The system may be maintained inflated by means of constant supply of compressed gas, e.g. from a compressor and blowoff valve or from a cylinder of gas and a reduction valve.
Patent GB-464896-A (GB)
Title: Improvements relating to bomb-proof shelters
IPC: E04H9/12
Filed: 1936-09-11
Abstract: 464,896. Bomb-proof shelters. EYRE, L. Sept. 11, 1936, No. 24776. [Class 20 (i)] In order to mitigate the effects from an explosion occurring near a bomb - proof shelter, the approach to the shelter is formed tortuous in shape and may be provided with baffles. As shown, the shelter is formed with externally inclined walls 5 of meshwork reinforced concrete walls and a fixed roof of reinforced concrete having two sets of reinforcing beams 9, 10 superimposed at right angles. The space is divided into a main chamber 2 and an ante-chamber 3 separated by a reinforced concrete wall 6 provided with an entrance 16- which may be of tortuous shape- and a wedge-shaped door 17. Across the ante-chamber between the doors of the main chamber and the entrance 13 is disposed a baffle 4 of reinforced concrete extending nearly across the antechamber and deflectors 20 may be disposed in the passage formed by the baffle. The outer entrance is also provided with a wedge-shaped door 14 and a shield 15, a drain being used to take away surface water. A roof-supporting pillar 19 may be provided in the main chamber and the roof may be further protected by a resiliently mounted reinforced cover 11 as described in Specification 464,897, disposed at the level of the surface of the ground. The shelter is built in a pit 1 and deflectors 12 may be provided at the edge of the roof to deflect the force of any explosion which may occur in the pit.
Patent GB-1310759-A (GB)
Title: Electromechanical indicating device
IPC: G09F11/23
Filed: 1970-05-22
Abstract: 1310759 Electromechanical indicators TELDIX GmbH 22 May 1970 [24 May 1969 (2)] 24807/70 Heading H2A In an electromechanical indicator comprising a permanent magnet rotor and a plurality of stator poles carrying energizing windings, the axis of magnetization of the rotor does not coincide with the line of attraction between the rotor and an energized stator pole. As shown, a rotor 16 designed to adopt any of ten positions is formed with ten equally spaced grooves 17 and the magnetic axis 20 is displaced from the centre line 119 of two diametrically opposed rotor poles. The rotor does not then tend to remain in one position when the stator is energized to rotate the rotor by 180 degrees. The slots 17 may extend over only part of the length of the rotor and be of continuously decreasing depth. Alternatively, the rotor may comprise two juxtaposed cylinders, only one being formed with grooves.