baber/WOPTO huggingface dataset:
Patent GB-1283006-A (GB)
Title: Polymer compositions and their preparation
Inventor: HARA K
IPC: C08L75/08
Filed: 1971-04-19
Abstract: 1283006 Polymer compositions KURARAY CO Ltd 19 April, 1971 [27 March, 1970 (2)] 23516/71 Headings C3C C3G C3P and C3R A polymer composition comprises an intimate mixture of (i) 10 to 90 weight % of a polyurethane prepared from (A) a polymeric diol comprising 30 to 100 weight per cent of polyethylene glycol of M.W. 200 to 10,000 and 70 to 0 weight per cent of a polyester or polyether diol, other than polyethylene glycol, of M.W. 200 to 10,000, (B) an organic diisocyanate and, optionally, (C) a chain extender, and (ii) 90 to 10 weight per cent of a copolymer derived from 5 to 80 weight per cent of an α,#-unsaturated carboxylic acid and 95 to 20 weight per cent of an α,#-unsaturated carboxylic acid ester, the carboxylic groups of the copolymer being ionically cress-linked by a metal of Group I, II or III of the Periodic Table. The composition may be prepared by mixing the two polymers (i) and (ii) and introducing into the mixture, as cross-linking agent, a salt, hydroxide or alkoxide of a metal of Group I, II or III or a monomeric mixture comprising the unsaturated carboxylic acid and the unsaturated carboxylic acid ester is copolymerized in the presence of the polyurethane elastomer to produce an intimate mixture of the two polymers, to which is added a cross-linking agent as specified above. In the latter method a graft polymer is partially produced. The polyether or polyester diols which may be used in conjunction with polyethylene glycol in the production of the polyurethane are polypropylene glycol, polytetramethylene glycol or the polyester derived from adipic acid and ethylene glycol or propylene glycol. Preferred α, #-unsaturated carboxylic acids are acrylic and methacrylic acids and the preferred α,#-unsaturated carboxylic acid esters are methylmethacrylate and butyl acrylate. The compositions are suitably prepared in the form of solutions in inert organic solvents and may be moulded by a dry method in which the solvent is vaporized or a wet method in which the solution is coagulated to prepare moisture permeable films.
Patent GB-1453954-A (GB)
Title: Box with hinged lid and blank-s- therefor
IPC: B65D5/64
Filed: 1973-05-17
Abstract: 1453954 Cartons MARDON SON & HALL Ltd 13 May 1974 [17 May 1973] 23644/73 Heading B8P A carton lid is hinged to the carton body by a strut, the strut being formed by a part 16 of the lid and a part of the rear wall 11 of the body. When open, and a fold line 26 is reversed folded, the body of the box can be seated within the lid. Flaps on the ends of the body and lid walls are permanently secured to adjoining walls.
Patent GB-805304-A (GB)
Title: Improvements relating to the refining of crude benzole
IPC: C07C7/163
Filed: 1955-08-17
Abstract: Crude benzole is refined to yield a benzene fraction having less than 0.01 per cent thiophene by flash distillation, with or without a previous thermal polymerization process at a temperature above 350 DEG  F., followed by hydrofining <PICT:0805304/IV (b)/1> the vapour withdrawn from the flash distillation in the presence of the oxides of cobalt and molybdenum, as such or combined, supported on alumina at 600-800 DEG  F. and 100-2000 p.s.i.g.  A space velocity of 0.5-5 v./v./hr. and a gas rate using hydrogen or a hydrogen-rich gas, recycle or once through, of 500 to 10,000 SCF/B may be used in the hydrofining.  Referring to Fig. 1, crude benzole with hydrogen is fed into the polymerization chamber 2 where it is kept at about 400 DEG F. and 1000 p.s.i.g. for an hour in the presence of 210 SCF/B of hydrogen.  The benzene is then flash distilled in the chamber 4, more hydrogen being added.  The bottoms containing polymeric material is redistilled and any benzole recycled.  The vaporous benzole and hydrogen from the flash distillation chamber 4 are heated in the furnace 5 and passed to the hydrofining chamber 6, cooled in the condenser 7, and gaseous material separated in the separator 8 and recycled by line 10, more hydrogen being added if necessary by the pump 12. Product benzole is withdrawn by line 9.  Water may be added if desired, prior to the condenser 7 to avoid blockage by deposition of solid ammonium sulphide and carbonate.  Specifications 692,639 and 805,050 are referred to.
Patent GB-806838-A (GB)
Title: Improvements in or relating to multi-frame photographic printing cabinets
Inventor: LEE JAMES CHARLES
IPC: G03B27/20
Filed: 1956-08-01
Abstract: 806,838. Photographic printing apparatus. NICOLL Ltd., D. O. Aug. 1, 1957 [Aug. 1, 1956], No. 23756/56. Class 98(2) In a multi-frame photographic printing cabinet of the kind wherein each frame incorporates pneumatic means for causing the photographic negative or other transparency to be held in contact with the sensitized material, the pneumatic means is used to drive a pneumatic motor operating the fluid or shutter automatically under the control of a timer. As shown, one side of the cabinet which encloses the printing lamp (not shown) has a window 2 closed during exposure by a printing frame 3. The frame is hinged and may be swung down as shown for loading and unloading, the window being closed meanwhile by a shutter 1 sliding in guides 1a. The other walls of the cabinet are similarly constructed. The shutter is raised by a piston 6 movable in a cylinder 5 by compressed air supplied through a tube 10 under the control of a valve 9, operated by a timer of known kind, not shown. The compressed air is also connected via a valve and a conduit 8 to frame 3, to force the negative into contact with the sensitized paper. Alternatively, the air operating the system may be at sub-atmospheric pressure; or the shutter 'may be operated by compressed air while suction is applied to the frame. The shutter may move upwards, instead of downwards, to close the window.
Patent GB-694737-A (GB)
Title: Improved method of and apparatus for measuring and controlling a liquid level
IPC: G01F23/24
Filed: 1950-09-28
Abstract: 694,737. Measuring liquid levels. ELECTRICITE DE FRANCE. Sept. 28, 1950 [Sept. 29, 1949], No. 23770/50. Class 40 (i) [Also in Group XXXV] A device for measuring or indicating the level of a conducting liquid comprises an electric measuring circuit which includes a vertically oscillating contact which is so disposed that during part of its oscillatory cycle it penetrates the liquid surface and completes the electric circuit. The invention is also applicable to the automatic control of a liquid level (see Group XXXV). In Fig.l, the oscillating contact comprises a needle 11 connected to a loudspeaker 12 energized from the electric mains 18. The needle is so positioned that it penetrates the surface of the liquid for part of the oscillatory cycle; the mean current indicated by meter 15 is consequently a measure of the height of the liquid level. In a further embodiment, Fig. 6, for indicating the difference between two liquid levels, two vertically oscillating contacts are used, one 63 being maintained in a predetermined position with respect to the liquid surface in tube 62 by retroactive control involving amplifier 64 and motor 65, and the other 66 being connected to motor 65 so as always to be at the same height as the contact 63. The contact 66 co-operates with the liquid surface in tube 61, so that the mean current flowing in the circuit as indicated by meter 67 is a measure of the difference between the two liquid levels.
Patent GB-1154162-A (GB)
Title: Process for producing Single or Multiple Copies of Graphic Originals
Inventor: BRINCKMAN ERIC MARIA
IPC: B41M5/48
Filed: 1965-06-03
Abstract: 1,154,162. Printing processes. GEVAERTAGFA N.V. 3 June, 1966 [3 June, 1965], No. 23793/65. Heading B6C. [Also in Division G2] A printing process comprises contacting a sheet having a layer with a silver image and a layer with a vaporizable material (see Division G2) with a copy sheet and heating to transfer the vaporizable material imagewise. Up to 40 copies can be obtained. The vaporizable material may be a dye so that a direct image is obtained or one-component of a two-component colour-forming material with the other component being in the copy sheet so that a direct image is obtained. An invisible image may be obtained on the copy sheet if a colourless vaporizable material is transferred and this may be rendered visible by using a powdered ink.
Patent GB-317011-A (GB)
Title: Ignition and combustion process for grates with progressive movement of the fuel, and device for such purposes
IPC: F23H11/00
Filed: 1929-08-02
Abstract: 317,011. Stockholms Aktiebolaget Privat. Aug. 8, 1928, [Convention date]. Stoking; grates.-Incandescent fuel, coke or clinker falling through or removed from a travelling or other mechanical grate, or deposits from the smoke flues, are fed on to the front of the grate, beneath the fresh fuel, to assist ignition. A sufficient depth of fuel is maintained on the grate to ensure that unburnt fuel is removed from its rear end for this purpose. A device 3 separates magnetically or by sieves the material falling from the rear end of the travelling grate 1, Fig. 1, into fused ash which passes through an outlet 4 into the ash-pit, and incandescent material which is directed by an outlet 5 on to a chain conveyer 6 leading underneath the grate to a drag-chain 7 which takes the material over a slide 8 to a hopper 9 in front of the fuel hopper 2. The incandescent material thus preheats the fuel in the hopper 2 and is fed as the lower layer on the grate. The partition between the hoppers 2, 9 may be shaped so as' to give the incandescent lower layer an indented cross-section, increasing the contact surface between the two layers. The conveyer 6 may be dispensed with by forming the travelling grate 1 of pocket-shaped bars adapted to carry the incandescent material on the lower run to the drag chain 7. Figs. 3 and 4 show a modification in which the incandescent mass is led by an oblique hopper 12 to an inclined conveyer 11 at the side of the grate 1, and fed on to the front of the grate by an oblique hopper 13. A series of furnaces may have a bucket chain passing along the rear of the grates, to collect the incandescent material, and rising to the front of the grates where the material is delivered to the hoppers 9 by tipping devices. The buckets of the chain may be filled with incandescent clinker and live coal alternately, the tipping devices at the front causing the clinker and coal to be delivered to separate hoppers. One of several furnaces may be used solely to supply incandescent material to the others. The conveyers are enclosed in casings to avoid loss of heat and escape of gases, and the casings may be connected with the flue or with an economizer. Hot gases may be led through the fresh fuel to dry it. The conveyer 6, Fig. 1, may be extended into the smoke flues and fed with incandescent deposits or these deposits may be taken direct to the hopper 9 by auxiliary conveyers.
Patent GB-971492-A (GB)
Title: Apparatus for feeding cigarette mouthpiece components
IPC: A24D3/02
Filed: 1959-11-26
Abstract: The subject-matter is identical with that of Figs. 7-12 of Specification 971,491 and the claims relate to means for feeding mouthpiece components in which the screwthreaded feed member has means to retard the rear one of a pair of abutted components to form a space permitting entry of the screw thread.  Specification 971,493 also is referred to.
Patent GB-185330-A (GB)
Title: Improvements in foot-operated air pumps
IPC: F04B33/00
Filed: 1921-09-08
Abstract: 185,330. Wood-Milne, Ltd., and Miller, W. E. Sept. 8, 1921. Actuating pumps by foot power.-In a pump, suitable for tyre inflation, in which the piston is reciprocated by a foot-lever which actuates side rods or links connected, for example by a cross- .head, with the piston-rod, the side rods or links are guided by a ring or sleeve mounted to slide on the pump barrel. The pump shown comprises a base-plate 1 which may be of wrought or cast metal provided with downturned portions 2 forming feet; or the feet may be constituted by pins riveted to the plate. From the plate a bracket 3 projects upwards and is formed with an annular boss 4 about which the cylinder 5 is secured at one end; holes; are formed in the bracket for the passage of the piston-rod 6 and the side rods 7 connected thereto by a cross-head 8. The other ends of the rods are pinned to trunnions 9 on a ring 10 which slides on the cylinder. The ring may carry bearing balls in contact with a wearing-strip provided on the underside of the cylinder. Toggle links 11, 13 are respectively pivoted on the trunnions 9 and between upstanding lugs 15 on the base and are connected by a pivot spindle 22 about which a spring 21 is wound, pulling the levers together. The pedal 12 carried by the levers 11 is of wood or rubber. Buffer springs 24 surround the side rods 7. The far end of the cylinder is secured to a bracket 16 provided with a valved tyre connection and a gauge, and removably secured to the base so that the piston 20 may be readily exposed for renewal or lubrication. Surfaces 26 at the top corners of the bracket 3 fcrm stops for the levers 11. A. hook 28 engages the spindle of the pedal 12 to. hold the pump in a flat position for carriage. Specification 2653/15 is referred to.
Patent GB-928571-A (GB)
Title: Thiadiazole dicarboxylic acid production and derivatives
IPC: C07D285/10
Filed: 1959-07-13
Abstract: 1,2,5-thiadiazole-3,4-dicarboxylic acid is said to be of use as a resin-curing agent, e.g. for epoxy resins.  Specifications 928,572 and 928,573 are referred to.ALSO:The invention comprises salts (other than alkaline earth metal salts) of 1,2,5-thiadiazole-3,4-dicarboxylic acid; a process for the production of an alkali metal or alkaline earth metal salt of 1,2,5-thiadiazole-3,4-dicarboxylic acid by reacting 4-nitro-2,1,3-benzothiadiazole with an alkali metal or alkaline earth metal permanganate at an initial pH of at least 6; and a process as above in which the resulting reaction mixture is made strongly acid to form the free acid, a water-soluble salt of a heavy metal that forms an insoluble salt with 1,2,5-thiadiazole-3,4-dicarboxylic acid, e.g. AgNO3, is added to precipitate that salt, and the latter is converted to the free acid by treatment with an acid such as HCl, HBr or HI or H2S.  The free 1,2,5-thiadiazole 3,4-dicarboxylic acid may be treated with a base to form a mono- or di-salt thereof. Specified metals are alkali metals such as Na and K, alkaline earth metals such as Ba and Ca and heavy metals; ammonium salts may also be prepared. Specifications 928,572 and 928,573 are referred to.
Patent GB-1498812-A (GB)
Title: Heat-processable photosensitive material
IPC: G03C1/498
Filed: 1975-05-22
Abstract: 1498812 Dicarboximides KODAK Ltd 22 May 1975 [30 May 1974] 23994/74 Heading C2C [Also in Divisions G2-G3] N - (Dimethylaminomethyl)phthalimide, (for use as a toning agent in photothermographic material) is prepared by reacting phthalimide with an ethanol solution of dimethylamine and formaldehyde solution, in the presence of acetic acid. N - (Dimethylaminomethyl)naphthalene-2,3- dicarboximide is prepared similarly.
Patent GB-422040-A (GB)
Title: Improvements in step-ladders and like structures
IPC: E06C7/08
Filed: 1934-08-20
Abstract: 422,040. Makingladders. WIKSTRAND, A., Mora, Sweden. Aug. 20, 1934, No. 24002. Convention date, Aug. 25, 1933. [Class 83 (ii)] [See also Group X] A step ladder is formed with tubular metal side members 1 provided with flanges 4, 5 on their front and rear edges formed by pressing the metal of the sides together along these edges. These flanges form a means to support the steps 8 at their fronts and rears, the step being attached to the sides by angles 11, Fig. 6, or channel fittings 6, Figs. 3 and 4.
Patent GB-360953-A (GB)
Title: Improvements relating to electrical relay mechanism
IPC: H01H50/86
Filed: 1930-08-11
Abstract: 360,953. Electromagnetic relays. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of McKenzie & Holland (Australia) Proprietary, Ltd.; Newport, Victoria, Australia.) Aug. 11, 1930, No. 24004. Convention date, Aug. 14, 1929. [Class 38 (v).] Retarding devices.-In a time-element induction relay having a time-element mechanism the energy for operating which is stored in a weight, the contacts which are closed or opened immediately the relay is energized are permitted to be closed or opened by the initial movement of the vane or other operating element the continued movement of the operating element storing energy in the weight which operates the time-element mechanism when the relay is deenergized. As shown in Fig. 2, the induction disc DM drives a toothed segment S which operates a crank arm 7 having a pin 9 engaging a slot at one end of a link 6. The other end of the link has a similar pin-and-slot connection 19 with a pivoted pawl bracket PB to which is attached a counterweight lever CWL. The pawl bracket PB carries a pin 12 working in a slot 11 of a depending arm SL pivoted to a rocking contact-carrier CC provided with a counterweight CW. The initial movement of the pawl bracket can thus allow the contacts to change over the continued movement causing the raising of the counterweighted lever CWL proceeding independently of the contact-carrier owing to the movement of the pin 12 down the slot 11. On de-energization of the relay energy stored in the counterweight CWL drives the retarding mechanism by pawls P, Fig. 1, on the pawl bracket PB engaging a retarding train RM and at the end of the retarded return stroke the pin 12 engages the upper end of the slot 11 so swinging over the contact-carrier CC to change over the controlled contacts. Spring contacts SC in a proving circuit may be arranged to be operated by the segment S when in its normal position.
Patent GB-1463579-A (GB)
Title: Self-sealing containers
IPC: B65D33/36
Filed: 1974-05-29
Abstract: 1463579 Flexible containers; self-sealing openings AMERICAN CAN CO 29 May 1974 24038/74 Heading B8K and B8T A fluid container 10 comprises two walls 20, 22, preferably of edge-seamed flexible plastics material, defining a distendable body portion and a projecting spout 12 with a discharge orifice 16, the spout 12 being so configured that a portion 24 adjacent the body distends on filling to cause one wall of the spout to seal against the other to close the container 10. The sealing portion 24 is defined by an arcuate bend 20a in the wall 20, which on filling the container 10 is distended to engage the wall 22, causing it to bulge at 22b. The spout 12 is defined by arcuate seams 18, 18a, which converge to a minimum separation, e.g. of about # inch-1“ inches. The container may have a second spout 44, Fig. 12, for refilling purposes, preferably provided with a guard 60, the spout 44 also being self-sealing, but arranged so that the exertion of pressure on the walls of the container to effect fluid discharge causes the sealing effect at the spout 12 to break down first. Further, Fig. 20, mounting means 78 may be provided for the container 70, e.g. for use as a soap dispenser, the container 70 being filled through the spout 76 and discharged by means of a hand knob 88, arranged to exert pressure on the container to break the seal at the discharge nozzle 90.
Patent GB-1164384-A (GB)
Title: Improvements in or relating to Steam Dryers
IPC: D21F5/10
Filed: 1967-05-24
Abstract: 1,164,384. Rollers. DRAYTON JOHNSON Ltd., and F. BLEZZARD. 2 May, 1968 [24 May, 1967], No. 24173/67. Heading F2U. [Also in Division F4] A steam dryer cylinder 1 supplied with steam from a manifold 2 has a syphon 5 rotatable with the cylinder for removing steam/condensate mixture from its interior and resiliently retained in position within the cylinder by a spring 7. The syphon is connected to a separator 10 having a condensate outlet 12 and a steam outlet 15, the steam outlet having a differential pressure control valve 14 operable to maintain a predetermined pressure difference between the steam supplied to the cylinder and the steam supplied to the separator and operable such that a decrease in the pressure difference tends to open the valve and vice versa. The condensation outlet may be provided with a ball cock arrangement 13 or a steam trap. A mechanical, hydraulic or pneumatic control may be provided for adjusting the valve 14 to alter the predetermined pressure difference.
Patent GB-1222748-A (GB)
Title: Winding apparatus for helical winding of a strip forming the revolving surface of a winding mandrel at a pitch corresponding to the strip width
Inventor: POULSEN PEDER ULRIK
IPC: B29C53/74
Filed: 1969-05-12
Abstract: 1,222,748. Winding mandrels. P. U. POULSEN. 12 May, 1969 [14 May, 1968], No. 24178/69. Heading F2P. An apparatus for the helical winding of a strip material, e.g. an endless steel tape 10, at a pitch corresponding to the strip width, to form the revolving surface of a winding mandrel, comprises a plurality of strip support members, e.g. endless ball belt holders 5, only one shown, which are distributed around an axis, extend parallel thereto, are spaced equally therefrom, and arc adapted to rotate about the axis, a stationary guide ring 14 mounted concentrically with the strip convolutions, and a plurality of slides 8 arranged in the region where the strip is first wound on to the support members 5. The slides 8 are reciprocable in the longitudinal direction on the respective support holders 5 and disposed radially inwardly of the strip convolutions, each slide 8 having a rigidly mounted, radially outwardly extending, thrust member 9 for engagement with the rear edge of the first strip convolution, a follower roller 13 co-operating with the stationary guide ring 14 which has a general pitch corresponding to that of the strip convolutions. A spring 11 urges each slide towards the guide ring. Each support holder 5 is connected by an arm 3 to a mandrel core 1 which is rotatable about its axis by drive means, not shown, so that the slides 8 reciprocate along guides 7 in accordance with the cam profile on the ring 14 and with an initial displacement over section M slightly greater than the width of the strip 10 which is wound continuously and helically, over the support members 5, with its edges in abutment, the rear edge of the first convolution engaging the thrust members 9 which ensure the correct pitch of winding for the strip to provide a smooth outer mandrel wall. The endless steel tape 10 is carried by means of reversing rollers, not shown, through the mandrel back to the region opposite the slides 8.
Patent GB-701519-A (GB)
Title: Improvements in shearing clippers
IPC: B26B19/24
Filed: 1948-11-04
Abstract: 701,519. Making handles. DEHN, S. G. (Sunbeam Corporation). Nov. 4, 1948, No. 24179/50. Divided out of 701,501, [Group XIV]. Class 83 (2). [Also in Group XIV] Sheep shearing clippers, having a head with a comb and cutter mechanism, are provided with a hollow handle to enclose the driving means and formed of metal tubing rigidly secured to the head and expanded to form a handle readily grasped by the operator. As shown, the handle assembly 11 includes a head 12 having a comb 13 and a cutter 14 oscillated by means 16 enclosed in a chamber 17 within a shaped handle formed by hydraulic expansion of a portion of metal tubing. The handle is soldered or brazed to the head 12. Specification 701,520, [Group XIV], is referred to.
Patent GB-694775-A (GB)
Title: Improvements in single button tuning control for radio sets
IPC: H03J7/30
Filed: 1949-09-21
Abstract: 694,775. Retractive switches. KOCH, R. F. Sept. 21, 1949, No. 24268/49. Class 38 (v) [Also in Group XL (c)] An automatic tuning arrangement for wireless equipment (see Group XL (c)) comprises a pushbutton switch having a make before break action on operation and a break before make action on release. When the button is operated the insulating shaft 63 brings a bridging arm 71 into contact with contacts 73 and 74. A second bridging arm 67 is mounted on a sleeve 65 in pin-and-slot engagement with the shaft and is held in position by a detent 66 until the first contacts make, when the pin pushes the sleeve until the detent engages the second notch. On release of the button the initial movement breaks contacts 71, 72 and 73 and the final movement remakes contacts 67, 69, 70.