baber/WOPTO huggingface dataset:
Patent GB-925854-A (GB)
Title: Purification of benzene
IPC: C07C7/04
Filed: 1961-08-04
Abstract: Crude benzene containing carbon disulphide and dicyclopentadiene is purified by distilling in a first stage to remove as vapour benzene with carbon disulphide and any cyclopentadiene monomer while leaving heavier constituents including cyclopentadiene dimer in the liquid phase and in a second stage the vapours are separated into cyclopentadiene and carbon disulphide overhead and pure benzene bottoms.  Part of the overhead from the first column may be condensed and, after removing any aqueous layer, returned as reflux, the amount returned being controlled in relation to the temperature in the column; similarly part of the overhead from the second column may be condensed and returned as reflux.  The bottoms from the first column may be further fractionated in a third column to obtain toluene overhead and xylene, the heat of condensation of the toluene being used to heat the second benzene column and the toluene also being further purified if desired in a fourth column.
Patent GB-603700-A (GB)
Title: Improvements in or relating to the production of vinyl cyanide
Filed: 1945-10-29
Abstract: Oxides of zinc, cadmium and magnesium which may also be associated with oxides of manganese, tin and thorium, alkali metal cyanides or the metal chromites described in Specification 603,699 may be used in the preparation of vinyl cyanide by the vapour phase reaction of acetylene and hydrogen cyanide (see Group IV (b)).  The oxides may be prepared by direct oxidation of the metals or by thermal decomposition or oxidation of inorganic or organic compounds of the metal, for example the metal salts of organic acids; the oxides may be associated with supports and may be pelleted.  Examples describe catalysts comprising a zinc-manganese oxide, a zinc-cadmium oxide and magnesium oxide, prepared by ignition of the metal oxalates (mixed in the case of the double oxides) followed by pelleting.ALSO:Vinyl cyanide is prepared by reacting acetylene and hydrogen cyanide in the vapour phase in the presence of an oxide of zinc, cadmium or magnesium.  The preferred catalyst is a mixture of zinc and magnesium oxides.  The catalyst mass may also include oxides of manganese, tin and thorium, alkali metal cyanides and the chromites described in Specification 603,699.  The preparation of the oxide catalysts is given (see Group III).  In examples, mixtures of acetylene, hydrogen cyanide and hydrogen are reacted over (1) a zinc-cadmium oxide at 475 DEG  C., (2) a zinc-manganese oxide at 500 DEG  C. and (3) magnesium oxide at 500 DEG  C.
Patent GB-1326998-A (GB)
Title: Coupling assemblies
IPC: B60D1/02
Filed: 1971-06-17
Abstract: 1326998 Coupling apparatus FRANCE ARMED FORCES MINISTER OF 17 June 1971 [17 June 1970] 28572/71 Heading B7T Coupling apparatus comprises a male member 1 threaded to a traction jack 2 adapted to be coupled with a female member 4 pivoted to a draw bar 3, the male member having slidable longitudinally therein a rack 10 which is engaged by toothed peripheral portions of two or more rotatable members 6 mounted on the body 5 of the member 1, a spring 11 acting on the rack to urge it and hence the members 6 into the positions shown in Fig. 1 whereby the male member is prevented from release from the female member by contact of the members 6 with an internally radiused shoulder 7 member of 4, and to withdraw the male member a fluid is introduced into a central bore of traction jack piston 12 to urge a piston 9 to compress spring 11 thereby rotating the members 6. When the member 1 enters member 4 an end face of recess 6b on each rotatable member 4 engages with the outer end of shoulder 7 whereby the members 4 are rotated sufficiently to enable them to enter member 4. Members 4 pivot with some free play about pins 25 mounted in body 5 and are further located between curved faces of blocks 18, 19 located by wedging action in the body.
Patent GB-1422259-A (GB)
Title: Process for the preparation of halogenated polyethers
IPC: C08G65/32
Filed: 1973-06-15
Abstract: 1422259 Ring chlorination of 2,2-bis-[4-(2 - hydroxyethoxy)phenyl]propane BAYER AG 15 June 1973 [3 July 1972] 28592/73 Heading C2C [Also in Division C3] Halogenated polyalkylene glycol aryl ethers in which the halogen substitutes the benzene ring and hydroxyl groups remain unreacted are prepared by reacting elementary bromine and/or chlorine with a polyalkylene glycol aryl ether of the formula wherein R 1  denotes H, C 1-4  alkyl, methoxy, ethoxy, phenoxy, Cl or Br, R 2  denotes H, Me or Et, n is an integer of from 1 to 20, R 3  denotes a methylene, methylmethylene, dimethylmethylene, sulphone or ether group and p is 0 or 1. Preferred temperatures are 25‹ to 150‹ C. and preferred solvents are CHCl 3 , CCl 4 , tetrachloroethane or pentachloroethane. Optional catalysts are iron, iron-III-chloride, aluminium chloride, antimony-V-chloride, molybdenum-V- sulphide, tri-IV-chloride, iodine, iodo-I- chloride, pyridine, quinoline and isoquinoline. Examples describe the bromination or chlorination of 2,2-bis-[4-(2-hydroxyethoxy)-phenyl] propane. Uses.-The product may be incorporated as fireproofing components in polyester and polyurethane resins. Examples describe the preparation of non-inflammable polyurethane foams based on the above halogenated glycol ethers in admixture with tris-(dimethylaminopropylhexahydrotriazine), ortho- and paranonyl-2-dimethylaminomethyl - phenol, silicon stabilizer, a polyether of OH-number 650 prepared from a 1 : 1 ethylene oxide/propylene oxide condensate with ethylene diamine, a polyether of OH- number 180 prepared from propylene glycol and ethylene oxide, trichlorofluoromethane, diphenyl kresyl phosphate and either a polyisocyanate obtained by phosgenation of crude aniline-formaldehyde condensates or a prepolymer derived therefrom by reaction with the above propylene glycol ethylene oxide condensate.
Patent GB-205684-A (GB)
Title: Improvements in printing-plate clamps
IPC: B41F27/10
Filed: 1922-10-20
Abstract: 205,684. Hoe & Co., Ltd., R., (Hoe & Co., R.). Oct. 20, 1922. Printing-surfaces.-A printing-plate clamp is provided with two of its faces differently formed so that the clamp can be used either to clamp two adjacent plates with a margin space between or permit a double wide plate to lie over the clamp, or a single clamp can be used to provide margin spaces of different widths between two adjacent plates, the clamp being mounted in a recess in the printing-plate support and being movable to bring the different surfaces to the top of the recess without removal of the clamp from the recess. In one form, Fig. 1, the clamp 8 is provided on one side with a margin face 9 and on the opposite side with a plain face 11, :adapted, when turned toward the periphery of the cylinder 6, to allow a double wide plate to lie over it. The clamp 8 is pivoted on a spindle 23 carried by a block 19 secured in a recess 31 in the cylinder, and is fixed in its operative position by a screw 24. In the form shown in Fig. 3, the clamp is provided on opposite sides with margin faces 13, 15 of different widths and the carrying block 19 is slidable in a recess 17 in the cylinder, guide ribs on the sides of the block engaging grooves 18 in the walls of the recess.
Patent GB-207953-A (GB)
Title: Improvements in or connected with lifting jacks
IPC: B66F3/14
Filed: 1922-10-21
Abstract: 207,953. Lake, A. E. Oct. 21, 1922. Jacks.-In jacks actuated by pawl-and-ratchet mechanism, the pivoted pawl D is reversed by a member G which extends along the handle B. The member G is kept in place by engagement with a stud J pivoted to the handle. In a modification the member G is attached to the pawl near the nose D<1> and the arm D<3> is connected by a spring to the handle.
Patent GB-1500821-A (GB)
Title: Constant velocity universal joints
IPC: F16D3/227
Filed: 1975-07-08
Abstract: 1500821 Universal joints LOHR & BROMKAMP GmbH 8 July 1975 [11 July 1974] 28647/75 Heading F2U In a constant-velocity-ratio universal joint having balls 2 engaging tracks 8 and 10 in outer 1 and inner 3 joint members and located in apertures in a cage 4, the cage 4 has outer and inner part-spherical surfaces engaging the outer and inner joint members, the outer partspherical surface being of a diameter greater than the minimum internal diameter of the joint member 1. This is achieved, as shown in Fig. 2, by means of grooves 7 in the outer joint mamber 1, engaged by guide ridges 6 of the cage 4 which define the outer part-spherical surface. The centres of the outer and inner part-spherical surfaces are spaced by distances e on opposite sides of the homokinetic plane.
Patent GB-389762-A (GB)
Title: Improvements in or relating to tools for turning or truing grinding wheels or discs
IPC: B24B53/04
Filed: 1932-10-14
Abstract: 389,762. Trueing grinding-wheels. WERNER AKT.-GES., F., Marienfelde, Berlin. Oct. 14, 1932, No. 28767. Convention date, April 1. [Class 60.] A tool for trueing a cylindrical or conical grinding-wheel 1 consists of a diamond 3 carried in a holder 17 secured to a member 5 slidable, but not rotatable, in a sleeve 6, which is pivoted at 4 in a housing 7. The sleeve is oscillated on its pivots to move the diamond across the wheel, by a pin 10 carried by a crank 9, moved by a handle 8, and engaging a slot 11 in the sleeve, and in order that the diamond may move in a straight line, an axial movement is given to the member 5 by the pin 10, which is pivoted in the member. 5. The housing is carried by a carrier 14 movable on a guide 16, and dust is excluded by a leather collar 18 and discs 19. In order to treat conical work, the housing is turned about its axis 15.
Patent GB-337141-A (GB)
Title: Improvements in meat binding machines
IPC: A22C11/00
Filed: 1929-09-24
Abstract: 337,141. Lock, P. Sept. 24, 1929. Parcelling by bundling. - In a machine for binding hams and the like, the ham is rotated in contact with a support against which the ham is pressed by the tension of the binding string. As shown in Fig. 1, the ham is contained in a helix 1 which is supported at one end by a closure 2 journaled in a bracket 4 and at the other end by a cap 5 which is journaled in a bearing 7 carried by an arm 8 pivoted to the bracket 9. The arm 8 is swung to engage the cap 5 with, or to withdraw it from, the spiral 1, by means of a lever 11. The ham, having been placed in the spiral, is held by a skewer 20 which passes through holes in the cap 5. A spring-pressed U-shaped member 18', 18<11> has a head 19 which presses against the end of the ham and gives an indication of the amount of elongation of the ham during binding. The cap 5 is turned by the handle 15, and the binding string 16 is passed around a bar 17. In a modification, the ham is supported on a couple of rollers and held at one end in a jawed chuck. One of the rollers is helically grooved to guide the binding string. In a further modification, the ham is held in a chuck and supported in a trough-like support.
Patent GB-1455762-A (GB)
Title: Shped concrete blocks for shafts or bunkers
IPC: E21F13/04
Filed: 1974-06-29
Abstract: 1455762 Shaft linings DEILMANN-HANIEL GmbH 29 June 1974 28989/74 Heading E1F A bunker shaft formed with a helical channel in its wall has a lining which incorporates a succession of concrete segments 1 disposed in helical fashion, each segment I being formed with an oblique channel 12 which when the segments are assembled, forms the helical channel. Each segment 1 is formed with through holes 2 and with cast-in nuts 3 offset from the holes 2, adjacent segments 1 being joined by bolts 5 passing through the holes 2 and being threaded into the nuts 3, the distance V between the holes 2 and nuts 3 being chosen so that the channels 12 of adjacent segments register to form a helix. The holes 2 may have countersunk portions 8 and the nuts 3 may be formed by internally threaded tubes 6 having anchor ribs 7 on their outer surfaces. A mortar joint 13 may be provided between adjacent segments, the thickness of joint 13 being determined by washers 15.
Patent GB-408945-A (GB)
Title: Improvements in or relating to internal combustion engines using superchargers
IPC: F02B33/00
Filed: 1932-10-17
Abstract: 408,945. Cooling pumps. JAMESON, J. L., Elland, Hemingford Road, Cheam, Surrey. Oct. 17, 1932, No. 29000. [Class 7 (ii).] The housing d of a rotary pump is formed integral with the cylinder block so that a common water jacket, e, g may be employed for the pressure side of the pump and the cylinders. The pump shaft n is used to drive an overhead cam shaft q operating slide valves r; a second pump may be arranged in a similar manner at the other end of the block, which extends down to the crank-shaft bearings.
Patent GB-323563-A (GB)
Title: Improvements in and relating to electrical connection plugs
IPC: H01R13/717
Filed: 1928-10-09
Abstract: 323,563. Pollock, M. C., and Pollock, E. E. Oct. 9, 1928. Plug couplings with current indicator.-A plug coupling for use with domestic appliances such as irons, toasters, &c. is fitted with a device that indicates by a glow when the current is applied to the coupling. The contacts C to which the leads L are connected by strips 16, 17 are furnished with means for mounting and connecting a gaseous conduction lamp 11, the glow from which is visible through lateral slots 12. A tab 21 may be attached to the screw contact of the bulb and secured by the screw 18, or a screwed socket may be attached to the contact and arranged to receive the bulb. The centre contact 20 of the, bulb engages a. spring 19 attached to the other main contact C.
Patent GB-1028775-A (GB)
Title: Improvements in or relating to carbon microphones
Inventor: BEADLE ANTHONY CRISP
IPC: H04R21/02
Filed: 1963-07-23
Abstract: 1,028,775. Microphones. STANDARD TELEPHONES & CABLES Ltd. July 23, 1963, No. 29131/63. Heading H4J. A carbon granules transmitter comprises a perforated front cover 18 (Fig. 1), a back cover 12 and an assembly comprising a frame 1, a diaphragm 8 and a carbon granules chamber 4, wherein the front cover 18 and the frame 1 are secured one to the other by a first portion 20 (Fig. 2b) of the rim of the front cover being turned around a rearward facing portion of the rim 2 of the frame 1, and wherein the back cover 12 is secured to the frame 1 by a second portion 21 (Fig. 2c) of the rim of said cover being turned around a rim 13 of the back cover 12. Frame 1 is of a die-cast aluminium and back cover 12 is of thermoplastic material. Back electrode 5 of chamber 4 has a filling hole closed by a nylon stopper 6. Front electrode 7 is secured to aluminium alloy diaphragm 8. A membrane 9 provides mechanical protection and moistureproofing and fits between rim 2 and rim 20. A silk washer 10 covers shelf 3 and provides acoustic resistance coupling via one or more holes 11 which connect the two air chambers separated by shelf 3. A felt pad 14 secures the stopper 6 and provides high acoustical resistance for a vent 15, thereby controlling the lower end of the useful frequency spectrum. A contact assembly 17 is mounted on back cover 12 to provide a spring connection to back electrode 5. A similar contact assembly (not shown) provides electrical connection to the front electrode by a spring in resilient contact with shelf portion 3 which is in contact with front electrode 7 via diaphragm 8.
Patent GB-171098-A (GB)
Title: Process for the manufacture of leather
IPC: C14C3/04
Filed: 1921-11-02
Abstract: 171,098. Reubig, C. R. Nov. 2, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Treatment preliminary to tanning; tanning with sulphite liquors; oil-tanning; combination tanning processes; impregnating.-Comprises processes for deliming, pickling, swelling, tanning, and greasing hides, the individual or partial processes being stated to be also suitable for use in conjunction with processes other than those described. The deliming or pickling process consists in dipping the hides for a short time in a solution of potassium or other alkali bichromate to which common salt and waste sulphite liquors may be added. Swelling is effected with a solution of chrome alum or other salts. The hides may then be treated with any vegetable or synthetic tanning material. The tanning process may be preceded by a filling treatment for five to ten hours with waste sulphite liquor of suitable strength between 3‹ and 34‹ BÚ, the lower degree of concentration being selected when the tanning is to be followed by impregnation with sa,ponifiable or non-saponifiable substances such as paraffin or ceresin, and the higher concentration in the case of greasing with light fats such as tallow, whale oil or degras. 10 per cent of common salt may be added to the sulphite liquor. The preferred tanning process comprises treatment with sulphides or hydrosulphides of alkali or alkali earth metals. Sodium sulphide may be dissolved alone or in combination with calcium sulphide or hydrosulphide and sodium or other thiosulphate, the sulphide solution being highly concentrated with the object of assisting colloidal separation of the sulphur. Other tanning agents may be added to the sulphide-thiosulphate solution or used separately. After the solution has been allowed to act upon the hides usually for two hours, treatment with acid follows. For this purpose the hides may be left in the tanning solution, which is then acidified with a 2¢ per cent to 10 per cent solution of sulphuric acid, to which may be added about one-quarter to one-half per cent of vacuum or other mineral oil, the hides being taken out and washed after half an hour to an hour. Greasing may be effected conjointly with the tanning, in which case about 10 per cent to 20 per cent of whale oil, degras or other saponifiable fat or oil is added to the tanning solution prior to acidification.
Patent GB-375660-A (GB)
Title: Improvements in self-feeding rotary brushes
IPC: A46B13/06
Filed: 1931-10-21
Abstract: 375,660. Self-feeding rotary brushes. BOYD, H., 285, Ecclesall Road, Sheffield. Oct. 21, 1931, No. 29188. [Class 19.] A self-feeding brush for cleaning motor cars and the like comprises a water turbine driven brush f of known construction with the addition of a protection fringe of bristles g secured to a flange a<1> of the brush mount so as to prevent damage to paint. The bristles may be mounted between twisted wires h so as completely to cover the flange.
Patent GB-985830-A (GB)
Title: Lamp capping machine
IPC: H01J9/34
Filed: 1962-07-30
Abstract: 985,830. Capping electric lamps. ASCOT LAMPS & LIGHTING Ltd., and F. W. JEFFERIES. June 4, 1963 [July 30, 1962], No. 29271/62. Heading H1J. A machine for threading caps on to the electrodes of the lamp comprises holders for the cap and bulb, means for bringing the cap into a predetermined orientation about its axis ready for threading by relative approach of the cap and bulb, including probes movable into the cap to correct any inaccuracy of the orientation by abutting the internal chamferings leading to the holes and hollow ended guide rods passing through the holes and over the ends of the electrodes and means for axially relatively displacing the cap and the guide rods, to cause the guide rods to pass through the cap holes after the operation of the probes. The ends of the probes may be formed as needles or separate needles may move inside them to enter the ends of the guide rods. In the form shown, a capping machine comprises a turret A, Fig. 1, having six stations. At station B, bulbs are fed by a transfer mechanism TM to a bulb holding position on the turret; at stations E and F mechanisms are provided for cutting and straightening and for locating the electrodes similar to the mechanisms described in Specification 961,928; capping also takes place at station F; and at station G the capped bulbs are unloaded. The pasted caps are fed from a shoot C<SP>1</SP> on to an indexing carrier H which brings them to station K where they are pre-orientated, station L where the position of the holes is checked and the holes cleared of paste by a drilling mechanism similar to that described in Specification 961,928 and thence to station M where each is impaled on a pair of guide rods and carried thereon round a turret J to station F. A cap arriving at station M on the carrier H is first gripped between upper and lower holding members 14, 13 and simultaneously a pair of probes 12, Fig. 2b, move down into the internal chamfering of the cap, thereby adjusting the position of the holes, needles 16 inside the probes passing through the holes to enter the ends of hollow guide rods 3 carried by a bracket 4 on the turret J. The members 14, 13 release the cap which slides to the bottom of the rods 3 and is carried round the turret J, the support 4 being raised during this movement by a roller 10, Fig. 3, engaging an inclined groove 11 in the standard 8 of the turret J. The electrodes having been gripped by the mechanism 19 as in Specification 961,928, the plate 4 and rods 13 are moved upwards by a cam acting on a rod 25 until the rods 3 engage the electrodes and the lamp cap is moved into position over the lead-in wires and is gripped by jaws (not shown) until the paste is set. The cap is finally indexed to take-off station G. The probes may be dispensed with at station M which may merely comprise means for lowering the orientated cap on to the guide rods or may be provided with needles which pass down through the holes into the ends of the guide rods.
Patent GB-832421-A (GB)
Title: Improvements in or relating to measuring arrangements for determining the mean draught, the mean heeling position, or the mean trim position of a ship
Inventor: DOS HELMUTH
IPC: B63B39/12
Filed: 1957-09-17
Abstract: 832,421. Electric measuring systems. SIEMENS & HALSKE A.G. Sept. 17, 1957, No. 29289/57. Class 40 (1). [Also in Group XXXIII] Apparatus for determining the mean draught of a ship comprises four pressure gauges located at symmetrical positions around the ship and at equal depths in calm water, the pressures being translated into corresponding values of resistances which are included in a circuit to cause the resistance of a receiver to vary in accordance with the average value of depth at the measurement points, this value being indicated on a crossed coil meter. Pressure gauge construction (Fig. 1). The water pressure P at each measuring point acts on a diaphragm 3 against a spring 2, any difference in force displacing a rod 5 about a fulcrum 6 to close contacts 10, 11 or 10, 12, thereby causing motor 15 to move the backplate 19 on which the spring 2 is mounted until balance is restored. The motor also repositions the slider 22 of a potentiometer 21 which therefore indicates the magnitude of the water pressure, and thus the depth below the water surface of the measuring point. Electrical circuit (Fig. 5). Each of four symmetrical measuring points have pressure gauges as above, one having a single potentiometer 21, and the others having dual gauged potentiometers 28, 29, 30. Current is fed through two parallel paths, one containing the tapped-off portions of the potentiometers to a motor 39, and the second containing the remaining portions of the potentiometers to a motor 38, the motor shafts feeding into a differential gear 40, and it is shown that the angular displacement of the output shaft 41 in a given time period is proportional to the value of the mean draught at the four measuring points. The timing mechanism comprises a timer 46 and two relays 48, 49. At starting the timer 46 drives a rotary contact arm 471 whilst shaft 41 drives the slider of potentiometer 43. When contact 471 breaks the timer circuit at 473, relay 48 is energized, contacts 482 are closed to cause crossed coil meter 44 to read the current flowing through potentiometer 43, relay 49 is energized, relay 48 falls and the pointer 443 of meter 44 is clamped at a position indicating the angular displacement of shaft 41 in the time period, which is proportional to the mean draught. Shaft 41 continues to rotate until a further rotary contact arm 421 re-energizes the timer 46 and the cycle restarts. A further embodiment (Fig. 7, rot shown), describes similar apparatus for measuring the heeling angle or the trimming angle of the ship.