baber/WOPTO huggingface dataset:
Patent GB-700187-A (GB)
Title: Improvements in and relating to the production of aromatic hydrocarbons
Inventor: TAYLOR ARTHUR WILLIAM JAMES
IPC: C07C15/08
Filed: 1951-01-17
Abstract: Aromatic hydrocarbons are produced by contacting a triene having at least 6 carbon atoms in a straight chain, in the vapour phase at elevated temperature with an aromatization catalyst. Catalysts and reaction conditions specified are those described in Specification 702,360.  p-Xylene is prepared from 2,5-dimethylhexa-1,3,5-triene which can be obtained from 2,5-dimethylhex-3-yne-2,5-diol, produced by condensing acetone and acetylene, as follows: (a) partial hydrogenation of the yne-diol to the ene-diol and catalytic dehydration in vapour phase; (b) conversion of the ene-diol formed as in (a) to the dichlor derivative followed by dihydrochlorination; (c) conversion of the ene-diol to a di-ester, and thermal decomposition of this; (d) dehydration of the ene-diol to 2,2,5,5-tetramethyl-2,5-dihydrofuran with a dehydrating agent and catalytic vapour phase dehydration of the latter.  Conditions are generally those described in the Specification above referred to for conversion of the corresponding ane-diol to a diene.
Patent GB-478859-A (GB)
Title: Improvements relating to inking mechanisms for rotary printing machines
IPC: B41F31/14
Filed: 1937-01-16
Abstract: 478,859. Printing-machines. HALLEY & SONS, Ltd., J., and HALLEY, A. M. Jan. 16, 1937, No. 1356. [Class 100 (ii)] Inking - apparatus for a rotary printing-machine comprises a distributing roller 10 intermediate the driven duct roller 17 and the first roller 6 of a group of distributing and forme-inking rollers which are driven at the same surface speed as the printing cylinder 3, the roller 10 being driven positively at a higher speed than the rollers 6 and 17 and having in co-operation therewith two messenger rollers 12, 13 connected together by a rod 14 for movement in unison. The roller 12 transfers ink from the roller 17 directly to the roller 10 and the roller 13 transfers ink directlv from the roller 10 to the roller 6 and the rollers 12, 13 are driven frictionally by the rollers with which they are in contact at any given time. The rollers 6 and 10 and also the rollers 4, 5 of the group of distributing and forme-inking rollers may be reciprocated axially.
Patent GB-309892-A (GB)
Title: Means for supplying liquid to drums of concrete or other mixing machines
IPC: B28C7/12
Filed: 1928-01-17
Abstract: 309,892. Burn, J. F., and Lancaster, J. S. Jan. 17, 1928. Rotary mixers; feeding in definite proportions. - In a concrete &c. mixing machine of the rotary, tilting drum type, in which measured quantities of water or other liquid are supplied from a container, means are provided for emptying the container by the tilting of the drum to its charging position. The water container 3, mounted on bearings 4 and provided with a gauge 13, is tilted by a link 9 connected to a lever 7 the end of which lies in the path of a pin 5 on the sector 6 by which the tilting of the drum 1 is effected. The container discharges into a shoot 11, discharging in turn into the drum. In a modification, the water container is fixed and discharges by means of a valve or cock operated by connections with the lever 7; or the sector may be provided with a radial arm engaging a pull rod to open the valve.
Patent GB-523867-A (GB)
Title: Improvements in or relating to telegraph signal regenerators
IPC: H04L25/24
Filed: 1939-01-17
Abstract: 523,867. Type printing telegraphy; valve circuits. CREED & CO., Ltd., and MASON, F. P. Jan. 17, 1939, No. 1607. Addition to 460,150. [Classes 40 (iii) and 40 (v)] In a start-stop regenerative telegraph repeater in which the regeneration of signals is under the control of local timing means controlling the incidence of a beam of radiation on a device sensitive thereto, set into operation on receipt of the start impulse as in Specification 460,150, the regeneration of the start element is delayed for an interval after the said setting into operation. Received impulses, of double current type, are applied to a polarized relay 9 having a movable tongue 10 contacting with either of two fixed contacts 11, 12. At the beginning of a received start impulse the armature 10 moves to the contact 11, whereupon the potential of a battery 5 overcomes that of a battery 4 so raising the bias of the grid of a gas discharge valve 1 to trigger the valve and energize a magnet M to allow rotation of a shaft, driven synchronously with the distant transmitter. This shaft carries a disc having apertures such that light is allowed to fall on a photosensitive cell 23 at instants corresponding to the middle of each received impulse. The first aperture corresponds to the middle of the start impulse and the resultant activation of the cell 23 allows the potential of a battery 6 to trigger the tube 2 and to energize the upper winding of a retransmitting relay 16, 17. If a received impulse is of opposite sign the tongue 10 moves to the contact 12 and, when the light cell 23 is activated, the tube 3 is triggered, the transmitting armature 18 is actuated in the opposite sense while the tube 2 is extinguished by means of a condenser 15. Towards the end of the revolution of the shaft a switch 24 is closed momentarily so applying a high negative potential to the grid of the tube 1 to de-ionize it, de-energiae the magnet M and so stop rotation of the shaft.
Patent GB-538203-A (GB)
Title: Method of coating surfaces
IPC: B05D1/10
Filed: 1940-01-26
Abstract: 538,203. Coating surfaces. LUMB, C. F. Jan. 26, 1940, No. 1635. [Class 95] A homogeneous coating of artificial or synthetic resin is formed on a surface by spraying the resin on to the surface in a finely divided or powdered state by means of a pistol or spraying apparatus in which air or gas under pressure is used to direct the material in a stream through or adjacent to a flame of a temperature sufficient to melt the resin or render it plastic and adherent to the surface in the form of a coherent film, without the need for any subsequent baking operation. Specified resins are those of the phenol-formaldehyde, urea-formaldehyde, and alkyd types, and a plasticizer may be mixed therewith. A temperature of about 140‹C. at the point of contact of the flame with the surface, is mentioned. Specifications 432,831, [Group XXIX], 473,184 and 507,057 are referred to.
Patent GB-746609-A (GB)
Title: Process for reducing the concentration of electrolyte in a solution
IPC: B01D61/24
Filed: 1954-01-19
Abstract: <PICT:0746609/III/1> For reducing the concentration of electrolytes in a solution a cell is used divided by membranes 5-8 into at least four compartments 1-4 arranged in a closed circuit, alternate membranes being capable of transmitting cations only (5, 7) and anions only (6, 8) respectively.  Suitable materials are ion exchange resins moulded with a plastic into coherent sheets. Compartment 4 contains the solution under treatment, e.g. sea water and 2 and 3 may also initially contain it, while 1 contains a solution of greater ionic activity, e.g. sea water with added common salt.  Consequently cations and anions migrate from 1 to 2 and 3 respectively causing these compartments to become positively and negatively charged, whereupon ions of opposite nature migrate from 4 to restore equilibrium in these compartments.  By employing a circuit of 8 compartments a two stage reduction of concentration may be similarly effected.
Patent GB-1333658-A (GB)
Title: Device for producing a screened clean zone on a surface for  depositing objects especially instruments
IPC: F24F9/00
Filed: 1971-01-13
Abstract: 1333658 Air curtains AR-VENTILATION AB 13 Jan 1971 [21 Jan 1970] 1660/71 Heading F4V A transportable unit for providing an air curtained clean zone on a table 2 for surgical instruments comprises a housing 5 which includes a fan 8 or is supplied with compressed air, a filter 13 and a duct 6 connecting the housing 5 to a nozzle 7, which nozzle produces in use a hollow conical air curtain. The housing 5 may be removably attached to the table 2 or mounted on a movable stand. If supplied with compressed air, the unit may induce a secondary flow of room air into the housing 5. The unit is made of aluminium or synthetic resin. The filter 13 is an absolute filter and may be mounted in the duct 6.
Patent GB-581913-A (GB)
Title: Improvements in and relating to super-regenerative receiver circuits
IPC: H03D11/02
Filed: 1944-01-28
Abstract: 581,913. Super regenerative receivers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 28, 1944, No. 1681. Convention date, Feb. 3, 1943. [Class 40 (v)] A high-quench frequency, in a self-quenching super-regenerative receiver, is obtained by a grid capacity-grid leak combination in which a portion of the grid leak is shunted by a valve arranged to be conducting during the negative half-cycle of the quench-frequency, thereby increasing the rate of discharge of the grid capacity. In the-Figure, the transmission lines 27 and 28 act as the oscillating circuit, and incoming signals are fed to the grid of the valve 15 from the feeder 24 via the loop 25. The valve 40, whose anode and cathode and battery 30 are effectively connected across the grid leak resistance 35, has its grid 42 earthed. When, due to the flow of grid current in valve 10, the grid 17 and consequently the cathode 43 of the valve 40 becomes negative, valve 40 becomes conducting and rapidly discharges the grid capacitance 37, hence increasing the quench - frequency. Filter 32 removes the quench and higher frequencies from the modulating signal output 13.
Patent GB-1243604-A (GB)
Title: Elastomeric latex and method of preparation thereof
IPC: D06M15/568
Filed: 1970-01-13
Abstract: 1,243,604. Polyurethane latex. JEFFERSON CHEMICAL CO. Inc. 13 Jan., 1970 [21 Jan., 1969], No. 1699/70. Heading C3R. A stable elastomeric polyurethane latex is prepared by (a) reacting a molar excess of an organic diisocyanate with a polymeric diol having a molecular weight of from 400 to 2000 such that the mole ratio of diisocyanate to diol is between 1À5:1 and 2À0:1; (b) emulsifying the resulting isocyanate-terminated prepolymer in an aqueous medium with agitation in the presence of an emulsifying agent which will give an oil-in-water emulsion; and (c) chain extending the emulsified prepolymer by adding 0.8 to 1.2 molar equivalents per molar equivalent of unreacted isocyanate groups of a polyoxypropylenediamine having a molecular weight of from 190 to 1000 and the general formula wherein n is from 2 to 16. Examples specify the use of toluene and hydrogenated 4,41-diphenylmethane diisocyanates and, as suitable diols, polypropylene glycols of M.W. 600, 800 and 1,200, polytetramethylene ether glycol of M.W. 1000 and polyoxyethylene polyoxypropylene copolymer diol of M.W. 1000. Polyoxyethylene polyoxpropylene copolymer diol may also be used as an emulsifying agent in conjunction with a toluene/water dispersion medium. The latex may be aged after preparation and subsequently used to coat films.
Patent GB-905224-A (GB)
Title: Improvements in or relating to refrigerator cabinets
Inventor: KITSON JOSHUA WILSON
IPC: F25D23/06
Filed: 1958-01-20
Abstract: 905,224. Refrigerators. ENGLISH ELECTRIC CO. Ltd. Jan. 16, 1959 [Jan. 20, 1958], No. 1843/58. Class 29. In a refrigerator cabinet having an outer shell 10 provided with an inturned flange 10b and a plastic liner 11 formed with an out-turned flange 12, flange 12 is held in engagement with the inner surface of flange 10b by positive clamping means which do not pass through the former. As shown in Fig. 3, strips 15 along the top and sides of the door opening bear on the rear of flange 12 and have a lip 15b bearing against flange 10b, the parts being held together by screws 16 covered by trim strips 21. As shown in Fig. 4, an angled strip 20 is secured to the flange 10b along the bottom of the opening, the flange 12 being held in the resulting trough by spring clips 18.
Patent GB-366265-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines having radial cylinders
IPC: F01B1/06
Filed: 1931-01-20
Abstract: 366,265. Two-stroke engines. DAINTON, F. M., 161, Belden Street, City Island, New York, U.S.A. Jan. 20, 1931, No. 1934. [Class 7 (ii).] In a radial, stationary-cylinder Diesel engine all the cylinders have a common combustion chamber 33, and the pistons drive through toothed wheels 24 and circular racks an airtight casing 10. Air is admitted to this casing by valves 61, the pressure within the casing being limited by relief valves 62. The pistons compress the air in the casing on their outstrokes, the air entering the combustion chambers through two paths. The channel 13 in the casing 10 forms a reservoir for lubricant which is picked up by the ends of the connecting- rods and distributed by channels to the bearings. A thrust bearing 40 is cooled by air circulated by a fan 43. Cylinders.-In the cylinder block are formed passages 38 leading to an inlet valve 37 to allow a first flow of air into the combustion space after the pressure has fallen during the exhaust period. The second air supply enters through valves 34 in the piston heads. The exhaust ports 68 in the cylinders lead to passages 67, each passage communicating with two cylinders ; these passages deliver to a manifold 69.
Patent GB-110464-A (GB)
Title: Improvements in Traction Engines.
Inventor: HOWORTH FRANKLIN WISE
IPC: B62D49/06
Filed: 1917-02-08
Abstract: 110,464. Howorth, F. W., (Johnston, D. J.). Feb. 8, 1917. Traction engines, internal-combustion engine. -A tractor having two wheels which can be driven independently or in opposite directions for steering comprises an internal combustion engine 27 and transmission gearing mounted at the two ends of a frame 10, 17 balanced in stable equilibrium on an axle 15. The engine drives two bevel wheels 40, 41 in opposite directions, and by means of two pairs of clutches operated by rods 58, 59 either wheel 30 can be geared to either bevel wheel or can be disconnected from both. The wheels 30 have internal gear teeth 35 engaged by toothed wheels 84, 85 on hollow driving-shafts 86, 87. The clutch-operating rods 58, 59 are connected to two levers 64, cords 74, 75 being provided to enable the clutches to be operated from a distance or in a similar manner to reins. The levers are retracted by springs 78. The cords also operate locking-rods 73 engaging toothed sectors 67, by means of which the levers 64 are locked in the driving or the neutral positions. The draw-bars 93 have two connecting-pieces 94, 95 and can be inverted to alter the line of draught.
Patent GB-258770-A (GB)
Title: Improvements in or relating to the chimneys and uptakes of houses and similar buildings
IPC: E04F17/02
Filed: 1925-08-12
Abstract: 258,770. Hurden, E., and Hurden, A. P. Aug. 12, 1925. Blocks, special shapes of.- Hollow chimney blocks are of approximately octagonal shape, formed by cutting away the corners of rectangular-shaped blocks, and such cut away parts are adapted for bonding with some of the walls of the house and for registering with adjacent recessed corners of adjoining blocks. In the construction illustrated, a block a having two flue openings b is of double octagon shape and the central recesses c constitute channels for receiving the ends of walls, which are cast between facing tiles as described in Specification 246,949, [Class 20 (iv), Floors &c.]. The blocks are formed of concrete and burnt clinker, crushed brick or the like.
Patent GB-137132-A (GB)
Title: Improvements in or relating to tractors for agricultural and other machinery
IPC: A01B69/00
Filed: 1919-01-27
Abstract: 137,132. Bell, W. Jan. 27, 1919. Relay or power apparatus. - A tractor is provided with a coupling-bar 2 for attachment to a trailing vehicle, this bar being fixed on a vertical shaft 4 which can be rotated by engine-power to steer the trailer. The shaft 4 is driven from a shaft 10 by gearing 8 put in and out of aetion by a lever 12, reversing gear 5, 6, being provided, controlled by a lever 11. In a modification the coupling-bar 2 may be moved bodily across the vehicle by rack gearing.
Patent GB-145368-A (GB)
Title: Clamp for electric wires
IPC: H01R4/22
Filed: 1920-01-21
Abstract: 145,368. Schleper, J. F. Jan. 21, 1920. Couplings.-Two or more electric wires are coupled by a clamp consisting of a tubular member 1 having a number of slots 4 extending from one end and provided with a male or female screw, a sleeve or ring 6, 10 fitting over the tube with some clearance and a screw 11 or nut 7 adapted to press the sleeve or ring on to the wires 2 which are led through the bore of the tube, their ends lying upon its exterior. The whole is covered with an insulating cap 9. The sleeve 10 may be of thin metal so as to become deformed in compression and effect improved contact with the wires, as in Fig. 4. The wires may enter the tube through conical holes in a base 12 upon which is screwed a porcelain cap 9<a>.
Patent GB-778654-A (GB)
Title: Safety valve, notably for hydrocarbon reservoirs and pipings
IPC: F16K24/00
Filed: 1955-01-24
Abstract: 778,654. Va)ves; fluid-pressure servomotorcontrol systems. SOC. TECHNIQUE ET COMMERCIALE D'INSTALLATIONS "LUCEAT." Jan. 24, 1955 [Jan. 30, 1954], No. 2013/55. Class 135. A safety valve for use with installations circulating vaporizing substances, comprises a valve body 2 connected to the installation by a pipe connection 1 and supporting a cylinder 10 slidably mounting a piston 9 connected to the main valve member 3 having a metal or other sealing ring 4. The valve 3 is urged towards its seat by a light spring 5 which abuts a fixed spider 6 and by the pressure of the fluid in the installation. A cup-shaped casing 11 clamped by its flange 11 a between the piston 9 and the valve member 3 is formed with a pocket 11b housing a bellows 12 sealed at one end to a plate 11c and at its other end to the head 13 of a pilot valve having a stem 13a passing loosely through the plate 11c. The stem abuts a cup member 18 urged upwardly by a spring 19 to urge the head 13 to close an aperture 14 in the piston. The outside of the bellows is subjected to installation pressure through ducts 22 and piston chamber 23 whilst the inside thereof communicates with the atmosphere through the loosely fitting stem, the interior of the casing 11, a passage 24 and an outlet duct 27. On the pressure in the installation building up to a value determined by the spring 19, the head 13 is unseated and pressure fluid is admitted to the space 17 above the piston 9 to unseat the main valve 3. On a subsequent fall in pressure the head is urged by the spring 19 to close the aperture 14. A restricted opening 15 and ducts 16 in the stem 13a permits leakage from the space 17 to the interior of the bellows and thence to the atmosphere to allow the main valve to close. When the pressure in the installation falls to a predetermined value below atmospheric pressure, the weight of the piston and other movable parts together with atmospheric pressure acting on the upper face of the main valve 3 overcomes the light spring 5 and the pressure beneath the valve to open the valve to allow atmospheric air into the installation. In order that the valve may operate as a quickopening valve and to check the operation of the valve, a pipe 29 including a stop valve 28 may be fitted to connect the valve inlet to the space 17 above the piston 9.
Patent GB-304610-A (GB)
Title: Improvements in or relating to flexible driving mechanisms
IPC: F16D3/76
Filed: 1929-01-21
Abstract: 304,610. Trinity Wheel Corporation, (Assignees of Baker, F. W.). Jan. 21, 1928, [Convention date]. Axles and axle structures. -Drive is transmitted between a motorvehicle wheel and its driving axle wholly through a non-metallic resilient cushion interposed between concentric polygonal members, and in one form described, a floating axle 10 lies in a sleeve 31, on which the wheel 32 bears, the outer polygonal member 35 running on a bearing 38 on the sleeve 11, which is secured to the axle and provided with the other set of polygonal faces 14. The resilient drive device can be readily applied to existing wheels, and by removing a cap 39, nut, 13, and the nuts on the bolts 40, can be bodily removed.
Patent GB-1526341-A (GB)
Title: Electrochemical cell with bipolar electrodes
IPC: C25B9/17
Filed: 1976-01-20
Abstract: 1526341 Bi-polar electrode cells BASF A G 20 Jan 1976 [21 Jan 1975] 02124/76 Heading C7B An electro-chemical cell, for oxidizing propylene in aqueous bromide solution, reducing acetone to pipacol or dimerizing mono ethyl hexyl adipate to form diethyl hexyl sebacate in methanolic NaOH solution, has a fixed bi-polar electrode stack 2 built up on a base-plate 1 in a closed reaction vessel wherein the electrolyte is fed by means, e.g. pipe 3 integral with base-plate, into the centre of the stack to electrically connect with the electrode stack whilst insulated from the reaction vessel; the outermost electrodes are electrically connected with a D.C. source via 5, 6. Preferably the electrodes are circular plates, e.g. of graphite, Ti, Al or stainless steel to which may be applied anodic layers of Pt, activated Ti or Ta, PbO 2 , Fe 3 O 4 , or MnO 2  and cathodic layers of Pb, Pb amalgam, Cd, Ni or stainless steel, spaced 0À05 to 2 mm apart by radial insulating strips, Figs. 3 and 4 (not shown). A collecting vessel 7 may be located below the base-plate for receiving liquid passing out through holes 4. A hood 9 may permit operation under super-atmospheric pressure.
Patent GB-359825-A (GB)
Title: Improvements in or relating to reciprocating delivery devices of printing machines
IPC: B65H29/36
Filed: 1931-01-22
Abstract: 359,825. Delivery apparatus for printing machines. MASCHINENFAB. RIK AUGSBURG - NœRNBERG AKT.- GES., 7, Stadtbachstrasse, Augsburg, Germany. Jan. 22, 1931, No. 2178. Convention date, Feb. 17, 1930. [Class 100 (i).] A carriage 6 of a delivery device is reciprocated by a cam disc 16 through the levers 14, 10, 12, 11, and gear wheel 20 engaging a rack 23. The shock of the carriage at each end of the stroke is absorbed by an air buffer comprising a piston 27 attached to the shaft 22 oscillating in an annular groove 31 inside a fined casing. Adjustment of the air cushion is made by placing screws 35 in the holes 34.
Patent GB-192905-A (GB)
Title: An improved baby carriage
IPC: B62B9/18
Filed: 1922-01-26
Abstract: 192,905. Salmon, H. E. Jan. 26, 1922. Frame construction; springs, arrangement of.- In a baby carriage, the body C is supported on vertically arranged coil springs B and rolling movements are checked by oblique transverse coil springs, such as G. The springs B are mounted on a frame A, preferably by means of plates D, the frame A being attached to the axles E and handles F.
Patent GB-178902-A (GB)
Title: Improvements in disc record containers or cabinets
IPC: A47B81/06
Filed: 1921-01-18
Abstract: 178,902. Fitzpatrick, H. D. Jan. 18, 1921. Contents, delivering.-A case for gramophone records comprises an openfronted carcase closable by a roller shutter d and holding a number of removable and interchangeable containers a, a<1> which are divided for the reception of records by partitions e held in place by tongued bars f, g and are provided with floors b inclined towards the front. Rails c of triangular section are mounted on pivoted side members c<1> and prevent the records from rolling out. The containers a, a' when placed in the cabinet rest on supports h which may be of angle section as shown when the containers are provided with inclined false bottoms b, or may be nearly rectangular in section. When the bottom of the container is itself inclined, the supports are disposed so that a container placed in the cabinet will tilt backwards and downwards and tend to remain in position.
Patent GB-363867-A (GB)
Title: An improved device for attaching roses to watering cans
IPC: A01G25/14
Filed: 1931-01-24
Abstract: 363,867. Roses. COLLIER, A., 453, Brixton Road, London. Jan. 24, 1931, No. 2408. [Class 69 (iii).] A rose with a short metal tube 4 is attached to the spout of a watering can by a tubular indiarubber connection piece strengthened by a bead at one end and provided with a metal ferrule 3 at the other.