baber/WOPTO huggingface dataset:
Patent GB-1268833-A (GB)
Title: Dental filling material and polymerizable binder for use therein
Inventor: LEE HENRY L II
IPC: C08F20/16
Filed: 1969-06-13
Abstract: 1,268,833. Polymerizable binders for dental filling materials. JOHNSON & JOHNSON. 13 June, 1969 [14 June, 1968], No. 30148/69. Heading C3P. ' Polymerizable binders which are suitable for use as the binder resin in direct dental filling materials comprise (a) at least 85% by weight of the binder of a mixture of (i) the bismethacrylate ester of the formula d (ii) bisphenol A dimethacrylate in a weight ratio of from 1: 0.05 to 1: 0.33; and (b) a monomer which reduces the viscosity of the binder. Monomer (b) may be a mono- or poly- (meth)acrylate ester, e.g. methyl methacrylate and mono- or poly-glycol dimethacrylates such as triethylene glycol dimethacrylate. A small amount of methacrylic acid is preferably also included in the binder. To form a dental filling material the binder is admixed with a finelydivided inorganic filler and a catalyst for effecting polymerization of the binder. The filler may be, for example, silica, quartz, glass beads or aluminium oxide and is desirably treated with a keying agent (e.g. an unsaturated silane) to improve the binding of the binder resin to the filler. The catalyst used is preferably a combination of a peroxide, e.g. benzoyl peroxide, and an activator of the formula . where R is -H or -CH 3  and X is -CH 2 CH 2 OH, -C 2 H 5  or -CH 3 , e.g. p-tolyl-diethanolamine. The binder may also include a polymerization inhibitor such as 2,6-di-t-butyl-p-cresol.
Patent GB-485539-A (GB)
Title: Improvements in or relating to thermo-electric safety devices for gas apparatus
IPC: F23Q9/00
Filed: 1937-11-03
Abstract: 485,539. Thermo electric batteries. ASKANIA - WERKE AKT. - GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. Nov. 3, 1937, No. 30154. Convention date, Jan. 9. [Class 53] A pilot light for gas apparatus comprises a thermo-couple heated by the flame of the pilot light, the elements of the thermo-couple consisting of a rod and tube connected together at one end. The device may be used with a thermo-electric safety apparatus in which the gas supply is controlled by an electromagnetically actuated valve energized by the current from the thermo-couple. Fig. 2 shows a pilot light having a non-luminous flame in which the burner has a series of holes 24 surrounding a thermo-couple comprising elements 21, 25 connected together at their outer end 26. The element 25 is screwed into the burner head 20, the element 21 projecting into a hole bored in a part 19 insulated from the head 20. Current is taken off through the latter and a conductor 36 secured to the part 19. In a modification the element 21 is screwed into the part 19 and projects through an opening in the conductor 36 to which it is attached by a nut. Fig. 3 shows a further modification in which the thermo-couple is carried by an arm 50 attached to the burner.
Patent GB-736430-A (GB)
Title: Improvements in grills
IPC: A47J37/06
Filed: 1952-11-28
Abstract: 736,430. Cooling grills. NIEDERER, J. Nov. 28, 1952 [Nov. 28, 1951], No. 30255/52. Class 28 (1). Grill bars 1 at the top of a casing 3 open at top and bottom are heated by perforated combustion gas pipes 6 which are masked by hoods 16 to distribute the heat. The gas pipes lead to a central socket pipe 9 which is merely placed over any gas supply pipe 8 from a gas container 7 or from a gas supply pipe of a gas cooker when removed from its burner. The socket pipe 9 has air inlets 10. A drip pan 17 is supported on a rotatable boss 11 at the top of the pipe 9, the height being adjustable by rotating 11 whereby a pin 19 on 9 moves the cam slot 12 in the boss 11, or by an ordinary screw thread. The drip pan 17 may be coupled to the hoods 16 to adjust them towards or from their gas pipes 6. The grill casing 3 rests on collapsible feet 20.
Patent GB-669498-A (GB)
Title: Process for the removal of carbon dioxide from gases by cooling
IPC: C01B32/50
Filed: 1949-11-25
Abstract: 669,498. Separation of air. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. Nov. 25, 1949 [Nov. 30, 1948], No. 30276/49. Addition to 652,778. Class 8 (ii) In subliming carbon dioxide from a cold regenerator A by the passage of cold gas e.g., nitrogen or oxygen from an air separation column and collecting substantially pure carbondioxide-free cooling gas near the end of a cooling period and adding it to the cooling gas used for the subsequent cooling of a regenerator B to provide a mass of cooling gas in excess of the gas from which the carbon dioxide is to be separated, the excess cooling gas is obtained during its course through the regenerator A being cooled e.g., during the last tenth of the period, by running it from at least one outlet C and a valved duct 3 leading to an auxiliary regenerator D and a gas holder E from which the gas is forced by a fan 6 back through the auxiliary regenerator and a valved duct 9 to supplement the cooling gas during the first nine-tenths of the cooling period of the regenerator B. During the last tenth of this period the valve 8 is closed and an outlet C<SP>1</SP> is opened to allow cooling of the regenerator D and recharging of the gas holder E. The outlets C, C<SP>1</SP> are located above the point of sublimation and in a modification each regenerator A, B has a second outlet and duct located below the first.
Patent GB-220211-A (GB)
Title: Check protectors
IPC: B43K29/18
Filed: 1923-12-03
Abstract: 220,211. Peters, S. E. Dec. 3, 1923. Reservoir pens; penpoint protectors. - A cheque protector of the kind adapted to be associated with a fountain pen at the closed end of the barrel, or of the pointprotecting cap 10, comprises a mutilating roller 14 journaled within upright lugs 23 at the sides of a rectangular frame 13 disposed within a cavity 11 which forms an ink reservoir and contains absorbent material 12 for delivering ink upon the roller 14. The roller is provided with peripheral mutilating edges 19, each of which has transverse grooves or cut-out portions 20 at intervals on its circumference, the cut - out portions of the several edges being arranged to form helical grooves which convey ink and leave portions of the cheque &c. untouched. The end of the cap 10 is chamfered at 18, adjacent to the sides of the roller, to enable the pen to be held at an angle. when the roller is in use, and the periphery of the cap is reduced at 15 to form a shoulder 16 to seat a removable cover 17.
Patent GB-1388241-A (GB)
Title: Swim fins
IPC: A63B31/11
Filed: 1973-06-27
Abstract: 1388241 Swimming aid IMPERIAL MFG CO 27 June 1973 [14 Aug 1972] 30482/73 Heading A6D A swim fin comprises a hollow foot portion 14 having a closed toe portion 16 and an open heel portion 18, a flexible blade 26 integral with and extending forwardly of said toe portion, strap means 22 extending across the open heel portion 18 and a replaceable hollow foot receiving insert 12. The insert fits snugly within the hollow foot portion 14 and has an inner surface of relatively soft material for engagement with a swimmers foot and is replaceable with similar inserts having different size interior cavities whereby a single size fin can be readily adapted and sized for different size feet of different swimmers. The insert may be of resilient foamed plastics material and the hollow toe portion and the insert may have enlarged end portions so that the insert is held firmly within the toe portion. With the insert removed the hollow foot portion 14 is sufficiently large to receive a swimmer's foot with a boot thereon. The blade portion 26 may include longitudinally extending reinforcing ribs 28 and vent openings 30.
Patent GB-938959-A (GB)
Title: Improvements in and relating to metal-working presses
Inventor: SAMUEL HERBERT JOHN
IPC: B21C27/00
Filed: 1960-09-06
Abstract: 938,959. Extruding; forging. LOEWY ENGINEERING CO. Ltd. Dec. 6, 1961 [Sept. 6, 1960], No. 30657/60. Class 83 (4). A metal working press, particularly a hot forging or extrusion press, has a workpiece container 18 supported in a housing 20 on a rotatable carrier 10 by means of ribs 28 slidable radially in grooves formed in the housing or container, and supports 32 between the container and housing permit of a sliding movement tangentially to the container. This enables the housing to move relatively to a container centred on the extrusion axis XX as a result of temperature changes. Three containers 18 are supported in the carrier 10 which is rotatable by electrical or hydraulic means on a press column 12 parallel with the extrusion axis X-X. Each container is supported in its housing 20 by radial ribs 28, which may be integral with the container, extending into radial slots 30 of blocks 32. Alternatively the ribs may be provided on the blocks. The two outer blocks 32 are slidable tangentially in recesses 36 of their respective housings 20 against the restraint of adjustable springs in housing 50. Three different arrangements of these springs are described, Figs. 3-5 (not shown). Alternatively liquid or air pressure means may be used. The container 18 in the extrusion position is located therein by an annular projection on the press die entering the container bore, Fig. 2 (not shown).
Patent GB-1025114-A (GB)
Title: Improvements in or relating to nuclear reactor operation
Inventor: ROBERTSON ROBERT IAN
IPC: G21C17/04
Filed: 1962-08-09
Abstract: 1,025,114. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Aug. 1, 1963 [Aug. 9, 1962], No. 30664/62. Heading G6C. In a gas- or vapour-cooled nuclear reactor, leaks in the sheathing of the fuel elements are detected by causing an emission of fission products through the leak into the coolant fluid by reducing the volume of the interspace between the sheath and fissile material. The speed of coolant circulation and the reactor power are increased together, in steps, so as to maintain the sheath temperature constant while raising the fuel temperature. The fuel expansion thus reduces the interspace. The method is said to detect " fast bursts ", that is, those caused by faulty welding whereby the ingress of oxidizing coolant gas would cause fracture of the sheath by the formation of uranium oxide.
Patent GB-940877-A (GB)
Title: Elevating load platforms for attachment to vehicles
IPC: B60P1/44
Filed: 1960-09-07
Abstract: 940,877. Elevating loading platforms on vehicles. R. A. NEAVERSON, and P. A. NEAVERSON. Aug. 23, 1961 [Sept. 7, 1960], No. 30789/60. Heading B8E. As a loading platform 21, Fig. 2, is raised to positions 21a, 21b inside a vehicle rollers 17 supported by sloping side frames 18, 19 move up guides 16 attached to the sides of the vehicle. The platform is raised by cables 25 anchored to the vehicle at 26 and passing to a sleeve 33 round pulleys 28, 29, 30, 32. A further cable 38, Fig. 4, connects the sheave 33 carrying pulleys 34 to a fixed sheave carrying pulleys 35 and passes over a pulley 40 to a winch which when operated draws the two sheaves together and raises the platform. The winch is preferably driven by an electric motor through a clutch which slips on overload. The drive may be taken from the vehicle engine or may be hydraulic or pneumatic. An automatic brake is applied to the driving shaft when the motor stops. For use in emergencies a hand crank may be provided on the drive shaft. Two electric motors may be provided one of which runs from the vehicle batteries and the other from a mains supply. To ensure that the winch motor is stopped whenever the hoisting cable 25 becomes slack, the fixed sheave is resiliently mounted and bears against a limit switch in the motor circuit whilst the cable is taut. Limit switches also stop the platform at pre-arranged levels as it ascends within the vehicle. If one of the cables 25 breaks a lever 61, Fig. 7, which engages the taut cable is caused to pivot about a pin 60 by a spring 63 which applies a break shoe 57, mounted on the side frame 18, to the guide 16. In a further embodiment, the guide 68, Fig. 8, is mounted in an exterior recess 67 of the insulated side of a vehicle. Fig. 10 shows a construction in which wheeled skips loaded by the platform are supported on the vehicle floor 75 and on ledges 76, 77 by means of pairs of wheels 81, 82 respectively. The platform may be fitted with shock absorbers which engage the ground and may comprise either a solid platform or an open framework. The guiding rollers may be attached to the vehicle rather than the platform, alternatively, the guides may take the form of slide blocks faced with anti-friction material. The platform may be arranged to receive goods from a conveyer and deliver them to a further conveyer at a different level.
Patent GB-1255610-A (GB)
Title: Polymer compositions
Inventor: BRIGGS PETER JAMES
IPC: C08K5/00
Filed: 1968-06-28
Abstract: 1,255,610. Stabilizing polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 May, 1969 [28 June, 1968], No. 30991/68. Heading C3P. Polymers are stabilized by incorporating therein (1) a hydroxybenzylamine of formula ANR 3 R 4  where A is the group wherein R 1  and R 2  are C 1-12  alkyl, C 5-8  cycloalkyl or aralkyl; R 3  is A, R 1 , C 1-12  hydroxyalkyl, aralkyl or alkaryl; and R 4  is R 3  or hydrogen; or wherein R 3  and R 4  together with the nitrogen atom form a heterocyclic ring; and (2) a phosphite of formula (R 5 O) 3 P wherein R 5  is alkyl, cycloalkyl, aryl, alkaryl or aralkyl, optionally substituted with halogen or hydroxyl, and at least one R 5  is alkyl or cycloalkyl; or a polymeric phosphite. Specified polymers are natural and synthetic rubbers; polymers of olefins, diolefins, methylmethacrylate, acrylonitrile, styrene and vinyl chloride; polyamides, polyesters ; polyurethanes and polyethers. Organic sulphides, metal dialkyl dithiophosphates, metal dialkyl dithiocarbamates, trialkyl trithiophosphates, phenols and other conventional additives may also be present. The compositions may be formed by direct or solvent mixing, e.g. with methylene chloride. Many suitable stabilizers are specified and examples describe compositions of poly-4-rnethylpentene - 1, pentaerythrityl- # - (4 - hydroxy- 3,5 - di - t - butylphenyl) propionate and dilauryl thiodipropionate with N,N-di(3,5-t-butyl - 4-hydroxy benzyl) ethanolamine and (1) diphenyl octyl phosphite, (2) diphenyl decylphosphite, (3) phenyl didecyl, (4) tridecyl phosphite and (5) tridodecyl phosphite; and with N,N - di(# - hydroxy ethyl) - 3,5 - dit - butyl - 4 - hydroxybenzylamine and (6) tridecyl phosphite and (7) tridodecyl phosphite.
Patent GB-773305-A (GB)
Title: Means for controlling the position of articles on conveyors
IPC: A21C15/04
Filed: 1955-10-29
Abstract: 773,305. Bread conveyers. VICARS, Ltd., T. & T. (Petersen Oven Co.). Oct. 29, 1955, No. 31002/55. Class 78 (1). A conveyer of the kind having pusher 15 to transfer a loaf 14 from endless belt 13 to endless belt 16 for conveyance to a slicing-machine has U-shaped means 30 for controlling the movement of each loaf. As shown, means 30 pivots upon pins 39 so as to engage the top of a loaf and to prevent any possibility of its toppling over as the pusher 15 comes up, said means being provided with slots 38 to allow upward movement of said means.
Patent GB-1124985-A (GB)
Title: Improvements relating to cable end sealing
Inventor: BUNYAN COLIN NEWTON
IPC: H02G15/04
Filed: 1965-07-21
Abstract: 1,124,985. Moulding cable end seals. TELEPHONE CABLES Ltd. 18 July, 1966 [21 July, 1965], No. 31019/65. Heading B5A. [Also in Divisions H2 and H4] A cable having outer plastics sheath 2 (Fig. 1) has its end sealed in a mould 14 by pouring in at opening 16 a suitable liquid sealing medium which sets to form a water block. Layers of tape 18, 20 initially seal the mould around the cable. The cable cores 6 may be connected as required and located in their final positions before the mould is filled. The cores 6 may be connected through loading coils (26) (Fig. 2, not shown) to the cores of a similarly terminated cable; the cable ends and coils being enclosed by a jointing sleeve (30) (Fig. 2, not shown).
Patent GB-1113872-A (GB)
Title: Apparatus for winding yarn
IPC: B65H54/02
Filed: 1965-07-21
Abstract: 1,113,872. Winding yarn. SCHWIETER ENGINEERING WORKS Ltd. 21 July, 1965 [21 July, 1964; 9 July, 1965], No. 31086/65. Heading DID. Apparatus for winding yarn has a yarn delivery device 6, infinitely variable drives for both the yarn package 12 and the device 6, and means for jointly actuating in a predetermined relationship adjustment means of both of the infinitely variable drives. In Fig. 1 (not shown) yarn - for example an elastic or crimped yarn-passes from a package around a roller (3) mounted on a resiliently biassed arm which actuates a stop motion if the yarn tension becomes excessive, a roller (4), back to roller (3), and then via a waxing device to rollers 6a, 6b. The rollers 6a, 6b are driven at a faster peripheral speed than that of package 12 so that the yarn slips on the rollers. From rollers 6a, 6b the yarn passes via a moistening device, a yarn tensioner and a stop-motion feeler to package 12. Package 12 is driven from shaft 18 through friction discs 19 and 23, and belt 30, the stop motions acting through pull rod 29 and fork 27 to disengage disc 23 from disc 19. Rollers 6a, 6b are driven from disc 23 via disc 38 and belt drive 41-46. As the package grows, package spindle 12b pivotally supported about spindle 25 swings away from supporting roller 11 and through gearing 65, 66 alters the setting of potentiometer 64 in the bridge circuit of servo-motor M. This motor then causes the radial position of disc 19 with respect to disc 23 to change so that the peripheral speed of package 12 may be kept constant of increase at only a slow rate, and also the radial position of disc 38 with respect to disc 23 to change so that rollers 6a, 6b may rotate at a constant speed or an increasing speed. Gears 61; 62 are suitably chosen to obtain the desired correlation between the change in speeds of spindle 12b and rollers 6a, 6b. In a modification Fig. 10 (not shown) gears 61, 62 are replaced by an infinitely variable drive comprising friction discs (102)-(104). This embodiment also includes in the bridge circuit for servo-motor M a resistance which is cut-in when the stop motions are actuated to cause disc 19 to shift radially outwards with respect to disc 23 so that on disc 23 re-engaging disc 19, the package is initially driven at slow speed before being accelerated back to the normal running speed.
Patent GB-699816-A (GB)
Title: Improvements relating to domestic fire-grates
Inventor: BAYLISS JAMES
IPC: F24B1/193
Filed: 1950-12-21
Abstract: 699.816. Grates. BIRMINGHAM STEEL CO.. Ltd. Dec. 21. 1951 [Dec. 21, 1950], No. 31089/50. Class 126 A domestic fire grate comprises a front frame having connected to it two side portions, a bottom portion, a back portion and fire bars mounted on top of the said portions, the whole forming a complete grate unit. A front frame 3 with an air inlet controlled by a front cover 10 is connected to sheet metal sides 4. bottom 5 and a back 6 adapted to fit into an ordinary domestic fireplace. The top edges of the sides 4 slope downwardly towards the back and have flanges 7 on which the grate proper 8 rests. An upstanding front part 11 with a fire brick lining 12 is provided at the top of the front frame, and hooks 13 on the back of the front cover 10 engage projections 14 on the inside of the opening in the frame so that a limited draught can reach the fuel, or the cover 10 can be removed to provide a full draught. A removable ash pan 9 is provided.
Patent GB-644400-A (GB)
Title: Improvements in closure members for drying cabinets, ovens or like containers and operating means therefor
Inventor: ALMEROTH CHARLES STANLEY
IPC: F26B25/12
Filed: 1947-11-24
Abstract: 644,400. Door-operating appliances. TEMPERATAIRE, Ltd. Nov. 24, 1947, No. 31103. [Class 65(i)] [Also in Group XI] The vertically slidable doors 15, 18 of a drying cabinet are connected by a cable or cables 9, 10 to the periphery of a drum 8. The drum is rotated by means of a chain 5 and a sprocket 6, one end of the chain being connected to a treadle 1 so that depression thereof opens the doors, and the other end being connected to a spring 7 adapted to close the doors on release of the treadle. A releasable detent 19 is adapted to retain the treadle in the depressed position.
Patent GB-866136-A (GB)
Title: Apparatus for pumping liquids
IPC: F16K15/03
Filed: 1959-09-11
Abstract: 866,136. Sewage reservoirs; filters; systems of filtration. FOOD MACHINERY & CHEMICAL CORPORATION. Sept. 11, 1959 [Sept. 26, 1958], No. 31118/69. Classes 33 and 46. [Also in Group XVII] Sewage flows into a tank 11 through pipelines 12, 13, 14, 18, 26, 27, the solid matter being held back by a filter 21 so that only liquid enters the tank, said pipeline including a by-pass line 24, 25 across a pump 31. When the liquid in the tank reaches a predetermined level, a float 53 switches on the pump 31 to empty the tank by a pipe (not shown), down to a lower level. The part 18 of the tank inlet pipeline containing the filter 21 is used as part of the discharge piping of the pump but the liquid is then transversed in the opposite direction so that the solid matter is swept off the filter to re-join the liquid. While the part 18 is being used by the pump, a flap valve (not shown), shuts off the by-pass line 24, 25 and a flap valve 17 shuts off the pipe 14, and any sewage still coming in through the pipe 12 spills over into the tank 11 from an opentopped portion 62 containing a filter 63. The apparatus may include at least two pumps each with its own reverse flow conduit 18 connected to the main inlet conduit 14 via separate flap valves 17, and each having its own bypass line. If only one pump is operating to expel liquid, liquid in the pipeline 12, 13, 14 can still pass the particular flap valve 17 that is associated with the idle pump and so flow into the tank via the pipe 18 and the by-pass line that is coupled to the idle pump. Where there are a plurality of pumps, they are driven by individual electric motors 34 controlled by float operated switches that are closed sequentially as the liquid in the tank rises. When the pump shown is operating, sewage and solids discharge at 58.
Patent GB-262791-A (GB)
Title: Improvements relating to apparatus for heating substances in a finely divided state
IPC: C10B1/04
Filed: 1926-12-08
Abstract: 262,791. Trautmann, J. Dec. 8, 1925, [Convention date]. Coking processes; producers.-Apparatus for use in showering powdered coal at a high pressure and in the presence of air or gas comprises concentric shafts 3, 8, a portable furnace or gas supply main 1, and a nozzle having a cooling- water annulus 16 and a material distributing- annulus 17. The annulus 17 communicates through removable tubes 19 with the throat 2 of the nozzle so that the charge is fed into the gas stream issuing from the main 1 and carried up the inner shaft and down the annular space between the shafts to outlets 5. The shafts are built up of heat insulated sections so that the apparatus may be made of varying heights. The gas main is held against the nozzle by suspension bolts 12. In a modification, the material is fed into the gas stream through a passage 20, Fig. 3, extending through the gas main which is connected in a gastight manner with the nozzle by a liquid or sand seal 13. In this case, additional gas and material may be fed into the upper part of the apparatus either through a cone-controlled passage 33 or passages 35 from an annular pipe 34. In a further arrangement, the shafts are of metal and are enclosed in a jacket through which hot gas is passed. In another modification, an inverted bell is placed over the inner shaft so as to increase the path of travel of the gas.