baber/WOPTO huggingface dataset:
Patent GB-527414-A (GB)
Title: Improvements in or relating to the production of amide condensation resins
IPC: C08G12/42
Filed: 1939-04-11
Abstract: 527,414. Urea-aldehyde resins. ALBERT PRODUCTS, Ltd. April 11, 1939, No. 11014. Convention date, April 13, 1938. [Class 2 (iii)] Resinous condensates of urea or its derivatives and aldehydes are heated for several hours about 70‹C. under substantially neutral waterfree conditions with mono-alcohols boiling above 80‹C., simultaneously distilling off unreacted alcohol and water of reaction. The condensates may be prepared from urea, thiourea or other urea derivatives, e.g. urethanes, guanidines, alkyl ureas, dicyandiamide, and aldehydes, e.g. formaldehyde, acetaldehyde, or butyraldehyde, or from methylol compounds, e.g. dimethylolurea, with or without aldehyde condensates of other amino-bodies, sulphonamides, mono- and polycarboxylic acid amides, aniline and triazines (e.g. melamine). Alcohols specified are propyl, butyl, amyl, hexyl, octyl, benzyl alcohols ; cyclohexanol ; terpene alcohols, or mixtures thereof. The process may be carried out in the presence of phenolalcohols : one or more fatty oils (e.g. castor oil), acid or neutral resins, polycarboxylic acid-polyhydric alcohol esters, modified alkyd resins ; polymerization resins such as polyvinyl resins, e.g. polystyrol, polyacrylic resins, couma@one resins, and mixed polymerizates, terpene-phenol resins, terpene-maleic resins, phenol- and amine-aldehyde resins ; cellulose derivatives, butadiene derivatives, caoutchouc conversion products, or softening agents, may be added to the urea &c. condensates before, during, or after the heating with mono-alcohols. The products may be used in coating, impregnating compositions, textile assistants or sizes, moulding compositions, and threads, foils, or bands. In examples : (1) urea and formaldehyde are condensed and the condensate dissolved in amyl alcohol, the solution being then boiled for 6-8 hours ; (2) dimethylol urea and dimethylolthiourea are resinified in butanol solution, a solution of cresol dialcohol in cyclohexanol added and the mixed solutions heated for 8-10 hours at 100-140‹C. According to the Specification as open to inspection under Sect. 91, reaction products of urea and/or urea derivatives and aldehydes, free or largely free from water, are heated for several hours with the alcohols and to the temperature stated above. Reference is also made to the addition, before, during, or after the heating With alcohol, of fatty oil acids and of natural or artificial resins broadly. This subject-matter does not appear in the Specification as accepted.
Patent GB-1042882-A (GB)
Title: Improvements in electric servo-systems
Inventor: LATIMER DEREK MALCOLM
IPC: G05D3/18
Filed: 1962-03-22
Abstract: 1,042,882. Control of A.C. motors. JAMES GORDON & CO. Ltd. May 29, 1963 [March 22, 1962], No. 11019/62. Heading H2J. The actual position of damper 1 is represented by a voltage which is derived from potentiometer 2 and is compared in stage 3 with a voltage on line 4 representing the desired position. The error signal is fed to a system of magnetic amplifiers and blocking oscillators 6 providing a series of pulses whose phase displacement from a datum voltage is determined by the magnitude of the error voltage. Controlled rectifiers 20, 21 are connected in circuit with windings 14, 17 of a two-phase motor 13 which drives the damper, the rectifiers being controlled by the pulses derived from the stage 6. The control signal on line 5 opens the gate 18 or 19 in the path of the reversing winding 17 in accordance with the sense of the signal, and simply opens the gate 15 in circuit with the winding 14. The signal is cancelled when the damper reaches the desired position, with the consequent removal of power supply for the motor.
Patent GB-542325-A (GB)
Title: Improved advertising device
IPC: A47G19/22
Filed: 1940-07-02
Abstract: 542,325. Advertising on drinking vessels. TURNER, E. A. July 2, 1940. No. 11149. [Classes 3 (i) and 3 (ii)] A drinking vessel is. fitted with a rotatable disc bearing advertisements on one or both of its faces. The disc 15 is located in a liquid-tight compartment 12 at the base of the vessel 10, on a vertical spindle 14. The disc is opaque or transparent and may be flat, concave or convex or have a combination of such shapes, and is mounted eccentrically so as to turn into the correct position for viewing the advertisement when the vessel is tipped up for drinking. Fig. 1 shows a compartment 12 formed in the body of the base 11 of the vessel during manufacture, but it may also comprise an independent closed compartment fitted on to the top, or into the bottom, of the base. In further forms flanged enclosing lids are cemented above or beneath the base, in the latter case the flanges fit inside or outside the base, and instead of cement fixing they may be screwed in place.
Patent GB-513503-A (GB)
Title: Improvements in dog racing apparatus
IPC: A63K1/02
Filed: 1938-04-12
Abstract: 513,503. Dog - racing apparatus. BEATTIE, J, W. April 12, 1938, No. 11156. [Class 132 (i)] In dog-racing apparatus the hare is carried by a trolley 1 which is guided by upper and lower rails 19 and 20, the trolley -being provided with rollers 7, 8, 9 and 10 engaging adjacent surfaces of the rails while another set of rollers 16 and 17 engage the sides of the rails. The rails may be of sound-deadening material such as wood. The rails are supported by brackets B which are provided with pulleys to guide the haulage rope of the trolley at curves. The starting traps 41 are opened by electromagnetic means under the control of trolley operated contacts on a block 25 mounted on two of the brackets B.
Patent GB-965810-A (GB)
Title: Apparatus for rolling sections from metal powder
IPC: B22F3/18
Filed: 1962-03-23
Abstract: An apparatus for rolling metal powder into sections of differing widths, i.e. an I section, comprises several pairs of rolls.  The powder is fed from a hopper 1 into the first pair of rolls 3, 3a which compress the narrowest part of the section to its final width but only effect a slight compression to the widest portion, i.e. the flanges.  The section then passes through guides 4, 5 which enclose the section and can be heated, and enters another pair of rolls which compress the flanges even more.  The section can pass through more pairs of rolls until it is pressed into the desired shape.  The Specification <PICT:0965810/C6-C7/1> also describes apparatus for the production of trapezial shaped sections using several rolls to compress the broadest portion of the section in several stages, after the narrowest portion has been compressed to its final width by the first set of rolls.
Patent GB-677332-A (GB)
Title: A suspension for producing an insulating coating by electrophoresis
IPC: H01J9/04
Filed: 1949-04-28
Abstract: 677,332. Electrophoresis coating. RADIO CORPORATION OF AMERICA. April 28, 1949 [June 19, 1948], No. 11330/49. Class 41. A suspension for producing an insulating coating by electrophoresis comprises aluminium oxide, magnesium nitrite and one or more dispersing agents wherein the suspension further comprises a material, the aluminium oxide equivalent of which has a value between 20 and 33 per cent by weight and which apart from aluminium nitrate with a reduced content of water of crystallization contains aluminium hydroxide. The amount of the material to be used with each gram of magnesium nitrate is determined by dividing 0.295 by the aluminium oxide equivalent of the material expressed as a fraction. The material may be made by drawing off at least part of the water of crystallization content of commercial aluminium nitrate. This treatment may be a heat treatment and may convert a portion of the aluminium nitrate to hydroxide. The heat treatment may comprise heating the commercial aluminium nitrate to about 135‹ C., adding distilled water and heating below 135‹ C. until the material hardens and possesses the requisite aluminium oxide equivalent.
Patent GB-1026257-A (GB)
Title: Stainless steel
IPC: C21D8/00
Filed: 1965-03-17
Abstract: A stainless steel has the following percentage composition:-  Ni 3-8 Cr 12-17 Co 7-13 Mn 0.01-1 C 0.01-0.15 N 0.005-0.1 Mo 0-5 Si not more than 0.15  Fe and incidental elements, the balance, the equivalent nickel index, viz Ni + 0.68 Cr + 0.55 Mn + 0.45 Si + 27 (C + N) + 0.2 Co + Mo being from 19.5 to 22.  The incidental elements include A1 up to 0.2, Ca up to 0.1, Mg up to 0.1, Zr up to 0.1, B up to 0.01, Cu up to 2.  The steel may be hot and/or cold worked in the austenitic state and then hardened by plastic deformation in the temperature range -15 to 38 DEG C to produce at least 20% reduction in cross-sectional area, and thereby convert 60-99% of the structure to martensite, followed by heating in the martensitic state to 400-455 DEG C for 1-48 hours. Following any working step and prior to plastic deformation, the steel is preferably annealed to 980-1150 DEG C.
Patent GB-660930-A (GB)
Title: Improvements in or relating to roof constructions for buildings
IPC: E04B7/02
Filed: 1949-04-28
Abstract: 660,930. Roofs. KELLER, S. April 28, 1949, No. 11359/49. Class 20(iv) A prefabricated roof member of inverted V-section, Fig. 2, comprises two lattice girders which are each, Fig. 1, in the form of top and bottom chords 1 or 1<SP>1</SP> and 2 or 2' respectively with cross tie-rods or webs 3 or 3<SP>1</SP> and are disposed with their planes inclined at an angle to one another, the top chords 1, 1<SP>1</SP> being positioned side-by-side and welded together, with or without distance pieces, at spaced points 13, Fig. 10, and the bottom chords 2, 2<SP>1</SP> being connected together by transverse ties 4, 12,. welded between the ends thereof. The chords 1, 2 are preferably of rolled T- section, and the webs 3, each of flat bar which is bent to V-section and then has its ends split along the bend for a short distance to provide two laps adapted to be connected to the two faces of the web of the adjacent chord by spot-welding. When the roof member is used as a rafter, a ridgepiece 9 is provided to extend the whole length of the roof and the rafter is fitted with an abutment member 10 of angle-iron, with reduced ends 10<SP>1</SP> of semi-circular section, which is welded to the chords 1, 1<SP>1</SP> at the upper end thereof and is secured to the ridge by a pair of clips 11, Fig. 7; at the other end of the rafter the transverse tie 4, Fig. 5, is adapted to be secured to a wall plate 5 by a clip or shackle 6. A timber 14, to which battens 16 are nailed, may be laid in the trough formed by the flanges of the chords 1, 1<SP>1</SP> and secured in place by screws, not shown. Two such roof members 30, 31, Fig. 22, may be superposed with their V- ends adjoining and connected together by welding the chords 2, 2<SP>1</SP> to spaced interposed flat steel bars 32. Specification 143/14, [Class 20(iv)], is referred to.
Patent GB-649999-A (GB)
Title: Improvements in and relating to the preparation of catalysts comprising silica gel and metallic oxides
IPC: C07B35/04
Filed: 1948-04-26
Abstract: Silica gel-metal oxide catalysts substantially free from alkali metal compounds are prepared by hydrolysing a silicon tetrahalide (other than the fluoride) in a suitable salt solution and reacting with a weak base.  The preferred halide is the chloride and the metal oxide component may be one or more of aluminium, scandium, yttrium, indium, thallium, lanthanium, cerium, pr sodymium, neodymium, magnesium, titanium, zirconium, copper, beryllium, zinc, cadmium, tin, platinum, antimony, thorium, vanadium, uranium, hafnium, gold, chromium, manganese, iron, cobalt, nickel, arsenic, palladium, germanium, iridium, and gallium.  Bases specified are aliphatic and aromatic amines (e.g. diethylamine, aniline) and ammonium hydroxide, carbonate and bicarbonate.  The product may be obtained as graded spheres by introducing the solution into ammonia gas or oil solutions of amines. The catalysts are used for cracking hydrocarbons, dehydrating alcohols to olefines (e.g. ethanol to ethylene), hydrating olefines to alcohols (e.g. propylene to isopropanol), isomerizing hydrocarbons and polymerizing olefines.
Patent GB-389289-A (GB)
Title: Improvements in or connected with apparatus for mixing and like processes
IPC: B01F7/04
Filed: 1932-04-21
Abstract: 389,289. Mixing &c. apparatus. PEEK, FREAN, & CO., Ltd., 158, Drummond Road, London, GILLESPIE & SONS, Ltd., A., 43, Middlesex Street, Kinning Park, Glasgow, DAVIS, G. W., 158, Drummond Road, London, and GALLIMORE, J., 10, Dunkeld Avenue, Rutherglen, Lanarkshire. April 21, 1932, No. 11430. [Class 86.] A kneading-apparatus comprises a trough A in which rotates a shaft B fitted with radial arms C, each arm being inclined in one direction for a portion 4 of its length, and in the opposite direction for the remainder 5 whereby the material is moved in an axial direction near the shaft and in the opposite direction near the wall of the vessel. The end kneading arms are spaced from the end walls of the vessel a distance equal to the distance between the arms, and arms E with inclined faces are provided to deflect the material from the end walls. Fixed radial blades D project from the wall of the vessel.
Patent GB-749630-A (GB)
Title: A throw-away container for pressurized liquefied gases and discharge means therefor
IPC: F17C13/04
Filed: 1953-04-27
Abstract: 749,630. Burners. SKOUSGAARD, E. C. April 27, 1953 [May 12, 1952], No. 11505/53. Class 75(3). [Also in Group XXVIII] A disposable container for liquefied gases e.g. butane feeding the burner of a, hand torch coin - prises upper and lower portions lu, 1l, Fig. 1, welded at a point 2, 3 and has a combined discharge and vaporizing, means. The container. is normally closed by a resilient disc 12, Fig. 3, held by internal pressure against an annular seat 12 of an outlet port 8 and unseated by a hollow pin 21 carried by a screwed union 17. When a sealing ring 19 carried by the latter abuts a fitting 5. The liquid then passes round the edge of the disc 12 and up an annular bore 23 ,Fig. 4, formed by a rod 24 in the pin 21 where it becomes vaporized before traversing a duct 27 controlled by a needle valve 28 and leading to an outlet tube 16.
Patent GB-863943-A (GB)
Title: Improvements relating to the charging of coke ovens
Inventor: CLOUGH GEORGE FRANCIS GILBERT
IPC: C10B27/04
Filed: 1958-04-11
Abstract: 863,943. Charging coke ovens. SIMON-CARVES Ltd. April 6, 1959 [April 11, 1958], No. 11534/58. Class 51 (2). During charging of a coke oven by a larry car 1 with hoppers 6 positioned over feed openings 10, escape of noxious gases is prevented by venting such gases to a gas main 15 on one side of the battery through an annular space 13, Fig. 4, round the telescopic shoot 9 of an opposite outer hopper, an offtake 17, and a duct 18 with a pivoted extension 20 engaging a port 23 in a gas ascension pipe 12 leading to said main. The extension 20 has a bush 22 engaging the port 23 and a valve 23a, and may be swung about a joint 19 by a chain 24. An aspirating steam jet 25 may be inserted in duct 18. The hopper formed with the annular space 13 has a slide valve 11, the remaining hoppers having conventional pivoted gates.
Patent GB-771960-A (GB)
Title: A process for mechanically effecting the cleaning of pipes used for transporting fluid
IPC: B08B9/04
Filed: 1954-04-22
Abstract: 771,960. Cleaning pipes. REINHART, A. April 22, 1954, No. 11595/54. Class 99(2) An access aperture 2 is provided in a pipe 1 for the introduction of a scraper device 4, and a second aperture 3 for its removal, liquid pumps 7, 8 provide pressure for forcing the scraper through the pipe, the scraper being a loose fit so that its speed is less than that of the fluid in the pipe, radio transmitting sets 9, 10 are stationed at the upstream and downstream ends of the pipe respectively, for communication with a third set 11 carried by an operator who also carries a detector device such as a Geiger counter 12 or a stethoscope 13 so that he can locate the scraper and who follows the travel of the scraper and gives orders to the pump' stations for regulating the pumps so as to control the pressure of the fluid and, consequently, the speed of travel of the scraper. Where a Geiger counter is used, the scraper is rendered radio-active as by fitting a cap containing radio-active material. The clearance between the scraper and the inside of the pipe allows the water to carry away the material removed by the scraper. Where the pipe slopes downwardly, a counter-pressure is provided by adjusting a gate valve 15 or by using the pump 8 (previously a suction pump) as a force pump. The water may be collected filtered and returned to the pump for re-use. 'The scraper 4 may be of known construetion comprising articulated devices such as brushes, blades or knives. In cleaning a gas pipe, toluol alone or mixed with other solvents for the scale &c. is used as the fluid and is collected for re-use.
Patent GB-561137-A (GB)
Title: Improvements in or relating to the catalytic conversion of hydrocarbon oils
Filed: 1941-09-11
Abstract: Aromatic hydrocarbon fractions rich in single ring aromatic compounds and suitable for use as solvents or gasoline are obtained by subjecting an aromatic extract boiling between 300 and 600 DEG  F. and having an aniline point below 50 to catalytic cracking at 800-1000 DEG  F. and fractionating the products to isolate a fraction boiling below 200-250 DEG  F.  Catalysts specified comprise natural and activated clays or synthetic alumina-silica gels the catalyst being used in the form of a fixed bed or suspended in the hydrocarbon vapours.  The aromatic fraction may be obtained by extraction of kerosene, gasoline, or a cracked condensate, from which condensed ring aromatics have been previously removed, with sulphur dioxide and evaporating off the solvent.  In examples a sulphur dioxide extract of kerosene having an upper boiling point of 568 DEG  F. and aniline point 43 is cracked at 861 DEG  F. with a feed rate of 0.6. Specification 548,760, [Group III], is referred to.
Patent GB-891465-A (GB)
Title: Improvements relating to bottle or like container handling machines
Inventor: DAWSON DAVID
IPC: B65B21/18
Filed: 1958-04-12
Abstract: 891,465. Crating bottles &c. DAWSON BROS. Ltd. April 13, 1959 [April 12, 1958], No. 11688/58. Class 94(1). [Also in Group XXX] Bottles or like containers fed between guide rails 4, 5 from a conveyer 1 on to a lift table 3 are located beneath a gripper head g by means of a stop 13, the table then being raised to a level slightly above the stop 13 so that, when the gripped bottles are transferred horizontally in the direction A, Fig. 2, to a crating or other machine, any bottle in the group not gripped will be swept off the table over the stop 13 with its group. The stop 13 incorporates a line check 14 operated through a contact 15 to control the supply of compressed air to a ram 7, 8 for raising the table which is provided with stops 12 on a screw shaft 10 sliding in fixed guide brackets 11. In a modification, the bottles are transferred in a direction at right angles to the direction A and the side rail 4 acts also as a stop the lift table in this case being provided with slots in alignment with the guide rails to allow the table to be raised above the rails.
Patent GB-1338231-A (GB)
Title: Differential amplifier circuits
IPC: H03F3/72
Filed: 1971-04-19
Abstract: 1338231 Clocked differential amplifier GENERAL ELECTRIC CO Ltd 19 April 1971 [11 March 1970] 11705/70 Heading H3T A periodically operated differential amplifier T 3 , T 4  has a tunnel diode TD connected between its output paths 2, 3 to accentuate the change in state of the amplifier T 4 , T 3  near balance, biasing means holding the tunnel diode in this state while the differential amplifier is inopera. tive. The amplifier T 3 , T 4  has a common emitter load of T 1 , of another differential amplifier T 1 , T 2 , which is turned on or off by clock pulses at terminal 8, the transistor T 2  forming part of the biasing means R 2 , R 2 <SP>1</SP>, T 2  while the differential amplifier T 3 , T 4  is off. The signal across the tunnel diode may be further amplified by transistors T 5 , T 6 .
Patent GB-1509071-A (GB)
Title: Packaging apparatus
IPC: B65B9/087
Filed: 1975-03-20
Abstract: 1509071 Packaging apparatus; conveyers R A JONES & CO Inc 20 March 1975 [20 March 1974] 11708/75 Headings B8C and B8A Packaging apparatus comprises an index wheel 36, Fig. 2 rotatable about a horizontal axis and having a plurality of suction heads 62 spaced round its periphery, the suction heads being arranged to hold individual packages 29, a conveyer 116 arranged to pass below and at right angles to the rotary path of the wheel 36, and means for releasing the suction at each head at a predetermined angular position of the wheel to cause the head to release a package held thereby on to the conveyer. As described paper strip coated with a plastics or other adhesive on one or both sides is fed from a roll 14, Fig. 1, via a printing device 16 to a plough 17 which folds the strip to V- section before it is sealed transversely by heated lands 20a on a sealer 20 to form a series of opentopped pockets. Alternatively a pair of strips is used in which case a bottom sealer 32 is also employed. The pockets are filled with granular or liquid material at a station 26 and then closed by a top-sealer 27 to form a string of pouches 29, which are fed via a take-up roller 91, Fig. 2, to the index wheel 36 against which they are held by a strip 94. Cutting bars 60 on the wheel 36 engage transverse seals 30 between adjacent pouches 29, and a suction head 62 is provided between each pair of bars. The index wheel co-operates with a cutting wheel 37 so that when a pouch reaches position 29a its leading seal is cut through and it is held on the wheel by suction applied through the head 62. At position 29b the trailing seal of the pouch is cut and it is carried by the suction head to a position over the conveyers 116, on to which it is ejected by supplying pressurized air to the head 62. The ducting to the heads 62 is such as to cause alternate pouches to be deposited in different positions on the conveyers 116 so as to form two edgewise overlapping rows of pouches 101, 102. The speed of advance of the conveyers is also related to the rotary speed of the index wheel 36 so that the pouches in each row lie in a shingled array, Fig. 5. From conveyers 116 the pouches pass to a slower conveyer 117 and the leading edge of each pouch is engaged by a stop 153 so that its position on the conveyer is reversed and the direction of shingling is also reversed. The pouches then pass on to a shoot 35 from which they are pushed into a box 167 by an operator. The box may then be placed on a vibrating table 181, Fig. 1, before it is closed. The printing means 16 may mark every nth pouch, e.g. 180, Fig. 5, so that the number of pouches to be inserted in a box is easily seen.
Patent GB-667445-A (GB)
Title: Improvements in or relating to centrifugal electric switches
IPC: H01H35/10
Filed: 1950-05-11
Abstract: 667,445. Centrifugal switches. SCHEID, A. M., SCHEID, E. M., and SCHEID, W. M., (trading as VORWERK & CO.). May 11, 1950. [May 27, 1949] No. 11780/50. Class 38 (v). A switch, especially for cutting out the starting windings of a motor at a certain speed, comprises a stationary plate 7 carrying a two-part slip-ring 8 co-operating with carbon brushes 17 carried by U-section pendulums 18 pivoted at 22 to a rotatable flange 12, the legs 181 of the pendulums embracing the flange so as to be guided thereby and the brushes moving in recesses 16 in the flange. The brushes are secured between the legs 18<SP>1</SP> at the closed ends of the pendulums by pins 20 and are normally urged into engagement with the slip-ring 8 by a tension spring 23 engaging the heads of pins 20, 22. The flange 12 is integral with a cup-shaped member 11 secured to an insulating sleeve 13 fixed to the motor-driven shaft 15. The joints 10 between the slip-ring halves are preferably inclined to the axis of the shaft 15 so as to obtain a smooth transfer of the brushes from one half of. the ring to the other.