baber/WOPTO huggingface dataset:
Patent GB-400291-A (GB)
Title: Improvements in or relating to water circulating systems for calorimeters
IPC: G01N25/42
Filed: 1932-04-26
Abstract: 400,291. Calorimeters. GAS LIGHT & COKE CO. and MILLS, F. E., 84, Horseferry Road, London. April 26, 1932, No. 12002. [Class 97 (iii).] The water passing through a water flow calorimeter is continuously circulated back to the calorimeter, the heat absorbed by the water being continuously abstracted by refrigeration. In the form shown, water from an upper tank 3 passes by the pipe 6 to the calorimeter 5 and from thence by the pipe 7 to a lower tank 1 where it is cooled by a thermostatically controlled refrigerating plant 13 and from which is it passed by the pump 8 and pipe 9 back to the tank 3. The refrigerator may comprise means for pumping liquid sulphur dioxide into a coil 14, the vapour pressure of the sulphur dioxide being used to control the operation of the pumping means. The coil 14 is arranged in a chamber 16 formed by a downwardly extending partition 15, an upwardly extending partition 17 being provided to ensure mixing of the water in the tank 1. An overflow pipe 4 ensures that the water maintains a constant level in the tank 3. If the water level in the tank 3 falls, due to failure of the pump 8, the ball valve 11. opens and causes water to be supplied through the pipe 10 and may also cut out the refrigerator. The tank 1 is provided with an overflow pipe 12.
Patent GB-552122-A (GB)
Title: Improvements in or relating to the tanning of skins
IPC: C14C3/22
Filed: 1941-09-19
Abstract: 552,122. Foam inhibiting agents. DU PONT DE NEMOURS & CO., E. I., and KIRK, J. S. Sept. 19, 1941, No. 12029. Addition to 530,643, [Group VIII]. [Class 1 (i)] [Also in Groups VIII and IV] In tanning skins by the process of the parent Specification or according to Specification 542,222, [Group VIII], foaming is prevented by the addition of aliphatic or alicyclic alcohols having at least 4 carbon atoms. Suitable alcohols are octanol, lauryl alcohol, alpha terpineol, cetyl alcohol or mixtures of alcohols of 14 to 15 carbon atoms obtained by high pressure hydrogenation of carbon monoxide. Examples describe the use of these foam depressants in tanning baths comprising tanning agents of the kind referred to in the above Specifications.
Patent GB-1389973-A (GB)
Title: Rotary screw compressor
IPC: F04C28/24
Filed: 1973-03-13
Abstract: 1389973 Screw compressors FORD MOTOR CO Ltd 13 March 1973 [29 March 1972]  12034/73 Heading F1F An externally-meshing helical screw compressor, for instance of the Lysholm type, comprises a plurality of radially extending lubrication metering chambers 34, 36, 38 in one axial end of one of the rotors, preferably the female one 30, the radially inner portions of the chambers 34, 36, 38 being arranged to successively communicate with a lubricating oil inlet chamber 40 in the adjacent end wall of the compressor housing, chamber 40 being in communication with an oil supply passage 42, and the radially outer portions of chambers 34, 36, 38 being arranged to successively register with a lubricating oil discharge chamber 44 which communicates with both rotor chambers 28,32, whereby metered quantities of fluid are discharged into the rotor chambers 28,32 in dependence on the speed of the compressor. When used in a vehicle air conditioning system, the male rotor is the drive rotor being driven by a pulley 12 on a shaft 54 coupled to the male rotor shaft 46 by an electromagnetic clutch 48,50,52. FREON is used as a coolant.
Patent GB-1170806-A (GB)
Title: Catalyst manufacture
IPC: B01J29/08
Filed: 1967-03-15
Abstract: 1,170,806. SiO 3 Al 2 O 5  catalysts. UNIVERSAL OIL PRODUCTS CO. 15 March, 1967 [16 March, 1966 (2)], No. 12124/67. Heading B1E. SiO 2 -Al 2 -O 3  catalysts are made by forming an aqueous mixture of hydrated SiO 2  of pH not exceeding 5, separately commingling an aqueous solution containing NH 4 OH with an aqueous solution containing Al 2 (SO 4 ) 3 , using the NH 4 OH and Al 2 (SO 4 ) 3  in a ratio to form a soluble partial hydrolysis product of Al 2 (SO 4 ) 3  in which two of the three sulphate radicals have been replaced by hydroxyl radicals, commingling the partial hydrolysis product with the aqueous mixture comprising hydrated SiO 2  at a pH not exceeding 5 and thereafter effecting complete hydrolysis of the Al 2 (SO 4 ) 3  in the presence of the hydrated SiO 2  and recovering the resulting SiO 2 -Al 2 O 3  composite. Additionally during preparation the SiO 2  hydrate may be associated with a crystalline aluminosilicate if desired in ion exchanged form to yield a 3 component catalyst.
Patent GB-1000802-A (GB)
Title: Polymers of perfluoroolefin epoxides
IPC: C08G65/00
Filed: 1962-03-29
Abstract: The invention comprises perfluorolefin epoxide polyethers of general formula X-CF2-CF2-O-[-CF(X)-CF2-O-]-nCF2-X where n is at least 8 and X is fluorine or a perfluoromethyl radical.  They are prepared by heating a perfluorinated acid of general formula <FORM:1000802/C3/1> with fluorine at 50-300 DEG  C.  The perfluorinated acid is prepared by hydrolysis of the polymers of hexafluoropropylene and tetrafluoroethylene epoxides obtained by treating the monomer in a nitrogen atmosphere in presence of carbon at room temperature for 3 days after which various fractions are obtained by distillation, e.g. of hexafluoropropylene to yield fractions where n=0, 1, 2-35 and >35. Hydrolysis takes place by contacting the polymer as such or in solution in a perfluorinated saturated hydrocarbon, with water. Decarbonylation and fluorination is effected by passing fluorine which may be diluted with inert gases, e.g. nitrogen, helium or argon through the liquid polymer or a solution thereof in an inert solvent at 50-300 DEG  C. Suitable solvents are perfluoroheptane, perfluorodimethyl cyclo-butane, perfluorocyclohexane and perfluorokerosenes.  Examples describe the preparation of perfluoroolefin epoxide polyethers, where n is 8-11, X is CF3; n is >35, X is CF3; n is 1, X is CF3; and perfluorinated tetraethylene epoxide polyethers of average M.W.=1000.ALSO:The invention comprises perfluoro-olefin epoxide polyethers of general formula <FORM:1000802/C2/1> where n is 0 or an integer and X is fluorine or a perfluoromethyl radical.  They are prepared by heating a perfluorinated acid of general formula <FORM:1000802/C2/2> where n is 0 or an integer and X is fluorine or a perfluoromethyl radical, with fluorine at 50-300 DEG  C.  The perfluorinated acid is prepared by hydrolysis of the reaction product obtained by treating monomer hexafluoropropylene or tetrafluoroethylene epoxide in a nitrogen atmosphere in presence of carbon at room temperature for 3 days after which various fractions are obtained by distillation, e.g. of hexafluoropropylene epoxide to yield fractions where n = 0, 1, 2-35 and >35.  Hydrolysis takes place by contacting the polymer as such or in solution in a perfluorinated saturated hydrocarbon, with water. Decarboxylation and fluorination is effected by passing fluorine which may be diluted with inert gases e.g. nitrogen, helium or argon through the liquid polymer or a solution thereof in an inert solvent at 50-300 DEG  C. Suitable solvents are perfluoroheptane, perfluorodimethylcyclobutane, perfluorocyclohexane and perfluorokerosenes.  Examples describe the preparation of perfluoro olefin epoxide polyethers where n is 8-11, X is CF3; n is >35, X is CF3; n is 1, X is CF3; and perfluoroinated tetramethylene epoxide polyethers of average M.W. = 1000.  Example 3 describes the preparation of 1 - (pentafluoroethoxy) - 2 - (heptafluoropropoxy)hexafluoropropane.
Patent GB-863412-A (GB)
Title: Pigment dispersants
IPC: C07F7/00
Filed: 1957-04-15
Abstract: The invention comprises amino-alcohol derivatives of tin, lead or silicon (see Group IV(a)), having the general formula: <FORM:0863412/IV (b)/1> where M is the metal, R is an alkyl radical having 1 to 18 carbon atoms or an alkaryl, aralkyl or aryl radical having 6 to 10 carbon atoms, R1 is an alkylene radical, R11 is hydrogen, an alkyl or hydroxyalkyl radical of 1 to 4 carbon atoms or an alkyl, alkanyl or aryl radical having 6 to 10 carbon atoms, R111 is an alkyl or alkenyl radical having 10 to 18 carbon atoms, x is 0, 1, 2 or 3 and y has a maximum value of 4-x.  The compounds are prepared by transesterification of the metal orthoester with an aminoalcohol, followed, if desired, by addition to a carboxylic acid to provide the above compounds where y is not zero.  Among the compounds described are (EtO)2 Pb[OC2H4N(C2H4OH) 2]2, (EtO)2 Sn [OC2H4N(C2H4OH)2]2 and their oleate salts.  The compounds are used as pigment dispersants.ALSO:A pigment dispersant comprises an aminoalcohol derivative of silicon, tin or lead, having the general formula: <FORM:0863412/III/1> where M is the metal, R is an alkyl radical having 1 to 18 carbon atoms or an alkaryl, aralkyl or aryl radical having 6 to 10 carbon atoms, R1 is an alkylene radical, R11 is hydrogen, an alkyl or hydroxyalkyl radical of 1 to 4 carbon atoms, or an alkaryl, aralkyl or aryl radical having 6 to 10 carbon atoms, R111 is an alkyl or alkenyl radical having 10 to 18 carbon atoms, x is 0, 1, 2 or 3 and y has a maximum value of 4-x (see Group IV(a)). The dispersant may be used in organic media such as kerosene, terpenes or xylenes, with natural or synthetic resins, in paints, lacquers or varnishes.  The specified pigment is titanium dioxide, which is dispersed by di-butoxy-di (triethanolamine)silane-N,N1-dioleate.  Many other dispersants are specified.
Patent GB-331608-A (GB)
Title: Brake operating mechanism
IPC: B60T13/24
Filed: 1929-04-19
Abstract: 331,608. Jackson, M. B. April 19, 1929. Fluid-pressure.-Brake mechanism of the kind in which the brake is applied by a spring or other means and released by fluid pressure comprises manually controlled mechanical means by which the brake is held off when the fluid pressure is inoperative and by which the brake can be applied' to any desired degree. As shown in Figs. 2 and 5, the mechanism comprises a lever 7 connected to the brake applying spring 13, to the brakes by the rod 9 and to the piston 5. The cylinder of the piston 5 is adapted to be connected alternatively to the atmosphere and to a source of vacuum such as the induction pipe of the internal combustion engine of an automobile under the control of a valve device comprising a threaded rod 26 carrying a valve 30, and connected to the pedal 39. The valve connects the cylinder passage 31 with one or other of the passages 32, 35 connected to the atmosphere and to the source of vacuum. The rod 26 screws into a rotatable sleeve 24 to which is secured a lever 23 geared as at 21 to the spindle of a cam 17 which engages the lever 7. A spring 40 engaging the rod 26 and a pin 42 on the arm 23 tends to unscrew the rod so that normally the valve 30 is in the position shown with the cylinder 1 connected to the vacuum source to hold off the brakes. When the pedal is depressed the rod is first screwed into the sleeve 24 forcing the valve against its right-hand seat whereby the cylinder 1 is cut off from the vacuum and connected to the atmosphere at 32 and as further relative rotation between the valve rod and the sleeve are then prevented the sleeve and with it the cam 17 are rotated to permit the gradual application of the brakes by the spring 13. If the pedal is allowed to return, the valve 30 is moved back to the position shown in Fig. 5 to re-establish the vacuum in the cylinder 1, the inward movement of the piston 5 permits the return of the cam 17 under the action of a spring (not shown) mounted on the spindle 18 and if the return movement of the pedal is arrested the sleeve 24 continues to rotate until the valve 30 is in position to reconnect the cylinder 1 with the atmosphere thus preventing further movement of the piston 5 and the cam 17. The release of the brakes may thus be graduated. In a modification. the cam 17 is replaced by a spring-urged wedge disposed between the piston-rod and a fixed abutment and connected to the arm 23. The brake may be released manually by the lever 7 in the event of failure of the power.
Patent GB-1008431-A (GB)
Title: Theatrical procedure and setting
IPC: A63J21/00
Filed: 1963-03-28
Abstract: 1, 008, 431. Projection screens. LIVING SCREEN Inc. March 28, 1963 [April 9, 1962], No. 12220/63. Heading G2J [Also in Division A6] Theatrical illusions involving the interaction of screen projected motion pictures and live actors on a stage 10 are created by the use of a projection screen 11 having a section 21 movable by handles 22 out of the plane of the screen to provide an aperture 20 through which live actors 24 may enter the stage. A series of screens 11 are suspended above the stage by cables 17 mounted on pulleys 18 carried by structure 16 movable on rails 15. Each screen has at least one section 21 and may be lowered in front of or behind the previous screen in use.
Patent GB-738564-A (GB)
Title: Improvements in and relating to welt stick mechanism of straight bar knitting machines
Inventor: BROWN LEONARD
IPC: D04B11/32
Filed: 1949-05-18
Abstract: 738,564. Knitting. COTTON, Ltd., W. May 17, 1950 [May 18, 1949], No. 12255/50. Divided out of 569,163. Class 74 (2). Take-off straps 34, in a straight-bar knitting- machine, are drawn off roller 3 and hooks 36 thereon are hooked around pegs 39 slidable from a rest position 43, along slots 41, by a cam 51 on main cam-shaft 21; and the picot bar 3 is lowered from inoperative to operative position (Fig. 2) to present a welt stick 1, already placed by hand in spring clips 2, to be taken by leafspring catches on gripper arms 7 raised by a cam 20 on shaft 21, when an appropriate length of fabric has been knitted, so that the ends of the welt stick 1 deflect guide springs 24 of the catches and become located at each end between the bent end 27 of a second leaf-spring 25 and the correspondingly bent end of a spring plate 28. The welt bar 60 is advanced towards the needles for setting up the initial course. Hooks 35, 36 are automatically advanced by the pegs 39 to a stick-receiving position, dipping below the welt bar by reason of the shape of the guide-slots 41. When sufficient welt fabric has been knitted, the gripper arms 7 are lowered, to pluck the stick 1 from the clips 2 and to carry it to a position on the fabric between hooks 35 and 36, pressing the fabric downwardly. Next, the pegs 39 are retracted so that the hooks 35 engage the stick and, under the pull of the straps 34, draw it from the catches on the arms 7. The welt bar 60 has now receded to its extreme position. The hooks 36 travel at such a level that they pass beneath the welt bar, or it, in its subsequent advance, passes over them; but guide-plates 69 engage the end of the welt stick to ensure that the hooks -35, 36 do not lift to foul the welt bar. The welt straps initially converge in the direction from stick 1 to roller 37 and thus, during take-off, they gradually slide towards the middle of the stick, so missing the pegs 39. The cam 20 acts through opposed trucks 19, 53 on a truck lever 18, 52, rod 17, arms 16, 14 pivoted on shaft 15, and links 13, 12, 8, a spring 10 biasing the arm 7 against a fixed guide lug 11. The cam 51 acts through truck 50 on truck lever 49, rod 48, gear quadrants 47, 46, arm 44 and link 40. Trucks 19 and 50 may be shogged, to render arms 7 and links 40 operative and inoperative, by forks 54, 55 on a control rod 56 operated by a pattern disc 58 on a pattern control shaft 59. Specification 569,163 is referred to.
Patent GB-217566-A (GB)
Title: Process of treating gases with granular adsorption agents for the purpose of separating or producing adsorbable materials from gas mixtures
IPC: B01D53/08
Filed: 1924-05-19
Abstract: 217,566. Metallbank und Metallurgische Ges. Akt.-Ges. June 13, 1923, [Convention, date]. Purifying processes; purifier waste, revivifying. -In the treatment of gaseous mixtures with granular adsorptive material, the latter is passed intermittently down a vertical shaft in which it first acts on an opposing stream of gas and is then reactivated by the action of heat, the absorptive material filling the entire cross-section of the shaft. The shaft comprises absorption chambers A, A', Fig. 1, and a reactivating chamber R at least equal in size to the chamber A. The chambers are connected by valves V<1>, V<2> so coupled that when one is opened the other is closed, the valve V<1> being so constructed that in its closed position it prevents the downward passage of the material but does not hinder the upward flow of the gas. Gas enters at a and leaves by way of the hopper B, or, if required for further use, by way of the outlet b. When the material in A is fully charged, the valve V<2> is opened and the contents of the chamber A allowed to fall into the chamber R, where the material is reactivated. The valve V<1> is then opened, and partially charged material from the chamber A' fills the chamber A, the chamber A<1> 'being replenished from the hopper B. The reactivated material is collected in a receptacle E and transferred to the hopper B. In a modification the shaft is fitted with deflectors T, Fig. 2, to ensure uniform movement of the material, and the reactivating chamber R is heated electrically. the reactivation being facilitated by the use of a small amount of cold gas for scavenging. The electrodes O, O<1> are earthed, the voltage-supplying electrodes, as at V, being arranged between the earthed electrodes. A pneumatic conveying device intermittently returns the reactivated material to the chamber A. The absorptive material may be an active carbon prepared as described in Specification 10126/14. The Specification as open to inspection under Sect. 91 (3) (a) describes a process in which the apparatus shown in Fig. 2 is operated continuously. This subject-matter does not appear in the Specification as accepted.
Patent GB-276925-A (GB)
Title: Improvements in and relating to casting machines for stereotype plates
IPC: B41D3/00
Filed: 1927-05-09
Abstract: 276,925. Winkler, C. May 9, 1927. Stereotype, casting.- In stereotype casting- apparatus of the kind in which the mould b, c is adapted to be pressed against the outlet opening e of the melting-pot, the frame a carrying the mould is pivoted to the wall of the furnace by means of an eccentric bush or bushes at each side of the machine. By adjustment of the bushes f the frame can be moved so as to enable the openings of moulds of different sizes to be correctly positioned for casting. Preferably a second eccentric bush g is mounted in the bush f. The bushes can be secured in adjusted position by means of bolts m, n passing through slots k, l in flanges on the bushes and screwing into the furnace wall and bush f respectively.
Patent GB-214099-A (GB)
Title: Improvements in or relating to tip-up seats for cinemas, theatres and the like
IPC: A47C7/56
Filed: 1923-05-09
Abstract: 214,099. Gordon, S. C. May 9, 1923. Folding and collapsable seats; sliding seats.- A theatre &c. chair comprises a seat 1 pivoted to a back 2 which is slotted to engage pins 11 in the framing 3 and adapted to slide over curved guides 13 when the seat is lowered and pressed forward from the position shown in Fig. 1 to that shown in Fig. 4. When being moved to the position of use, the seat first rocks on the curved ends 7 of ledges 4 and as the seat is moved forwards rollers 8 thereon travel along slots 6 between the ledges 4 and tapered guides 5. When released, the seat is automatically returned to the closed position by means of springs 12. Rollers may be fitted at the ends 7 of the ledges 4.
Patent GB-1441238-A (GB)
Title: Fluorspar-containing briquettes
IPC: C22B1/24
Filed: 1975-03-25
Abstract: 1441238 Fluorspar-containing briquettes HOOGOVENS IJMUIDEN BV 25 March 1975 [5 April 1974] 12459/75 Heading C1A Briquettes are prepared by pressing a mixture containing (a) fluorspar, having a maximum particle size of 6 mm., (b) a binder comprising 1-6 wt. per cent of water glass and 1-5 wt. per cent of cement The process is preferably carried out in a briquette press or roller at room temperature using blast furnace cement.
Patent GB-149447-A (GB)
Title: Improvements in and relating to airships
IPC: B64B1/58
Filed: 1919-05-17
Abstract: 149,447. Cave, T. R. Cave-Browne-, May 17, 1919. Aerostats.-Airship envelopes 4, Fig. 1, are strengthened by external reinforcing-bands 3, the distance between the bands varying as necessary. The reinforcement comprises cords 6, Fig. 2, held up to the envelope by bands 7 stuck thereon.
Patent GB-201647-A (GB)
Title: Improvements in and relating to the soles and heels of boots and shoes
IPC: A43B21/42
Filed: 1922-05-03
Abstract: 201,647. Hilliar, F. W. May 3, 1922. Protectors, securing ; countersunk tips; studs, detachably applied.- Soles and heals of boots and shoes have a permanently attached sheet or block or a number of blocks of rubber 1, Fig. 1, provided with holes 4, for the engagement of studs 6, on a renewable tread 5, or portion of a tread, such as a countersunk tip. If the treads are rubber, the studs may be moulded integral therewith or the studs may be of metal driven or moulded in the tread. In either case the studs are preferably formed with enlarged free ends to give a firm grip. The, studs may be secured by transverse pins through holes 7. In a modification, Fig. 8, rubber studs 27, with enlarged ends 28, for engagement with a rubber sheet 24, themselves from the renewable tread.
Patent GB-282587-A (GB)
Title: Improvements in and relating to tire constructions
IPC: B60C17/06
Filed: 1927-05-10
Abstract: 282,587. Krone, F. W., and Cohen, J. C. May 10, 1927. Air tubes; non- metallic elastic bodies and coils.- The air-tube 8, fitted within an ordinary tyre cover 5, is formed with an elastic cushion 9 which functions on deflation of the tyre. The cushion 9 has transverse and radial apertures 16, 16<1> respectively, and may have metal or fabric reinforcements 10. To prevent creeping of the tube, a small brass plate 17, vulcanized to the base of the tube, is formed with a central aperture 19 for the passage of the valvestem 7, and with threaded holes 20, 21 to receive set-screws 22 which are entered from the inner periphery of the rim 6.
Patent GB-494352-A (GB)
Title: Improvements in and relating to electric cooking plates
IPC: H05B3/70
Filed: 1937-05-03
Abstract: 494,352. Electric hot-plates. BRITISH THOMSON-HOUSTON CO., Ltd. May 3, 1937, No. 12591. Convention date, May 2, 1936. [Class 39 (iii)] An electric hot-plate a has an electric heating resistance e embedded in electrically insulating, good heat-conducting material in grooves c in the extremities of the ribs between grooves b in which a heating resistance d, more powerful than resistance e, is embedded. The recesses c can completely accommodate resistances e.
Patent GB-566319-A (GB)
Title: Improvements relating to muffle and like furnaces for the heat treatment of goods
IPC: F27B5/10
Filed: 1943-08-04
Abstract: 566,319. Muffle-furnaces. BARRATT, W. G., HIND, S. R., and HALSALL, J. Y. M. Aug. 4, 1943, No. 12600. [Class 51 (ii)] In muffle furnaces and kilns for the heat treatment of materials, the walls of the muffle chamber are formed of refractory slabs or panels a, having horizontal ribs b on the side along which pass the flames and products of combustion and vertical ribs c on the side facing the interior of the chamber. The panels fit into recesses e at their lower ends formed in the lower part of the muffle and abut against a shoulder. d at the hot gas side of the muffle. The vertical edges of the slabs or panels are rabbeted so that adjacent panels overlap, clearance being provided to allow for expansion.