baber/WOPTO huggingface dataset:
Patent GB-1048858-A (GB)
Title: Improvements in or relating to polypyrrolidones
IPC: C08G69/50
Filed: 1965-06-09
Abstract: A N-methylol, N-methoxymethyl-polypyrrolidone is prepared by reacting a polypyrrolidone with formaldehyde and MeOH in the presence of water at 85-200 DEG  C. and a pH of 3-10. The reactions may be concurrent or the formaldehyde treatment may be first. 0.5-5 parts of formaldehyde may be used per part of polypyrrolidone and when added with the aqueous MeOH this may be in a 10-50% solution. The methanol may be in 10-90% aqueous solution.  The pH may be adjusted by adding NaOH, Na2CO3, Na3PO4, pyridine, triethanolamine, NEt3 or a buffer solution.  The product contains 1-80% N-methylol substitution and 1-80% N-methoxymethyl substitution and is soluble in EtOH and water but can be rendered insoluble by acid cross-linking with formic acid at room temperature or with maleic, fumaric, oxalic, succinic, adipic, phthalic or azelaic acid at elevated temperatures.  After cross-linking remaining methylol groups may be removed by adding alkali or by heating to 110 DEG  C.  The product may be used for coating textiles, e.g. polyethylene terephthalate and nylon, floor covering, rayon cords, tentage, leather, paper, and glass fibres, and binding artificial leather, leather and glass.  It may be cast into sheets and fibres, added to improve the tear strength of rayon and used as an upholstery backing.  It may be foamed, being self-foaming at 120 DEG  C. or at a lower temperature under reduced pressure.  In examples the treated polymer in solution is precipitated by pouring it into acetone.  In Example (2) paraformaldehyde is used as the source of formaldehyde.
Patent GB-721723-A (GB)
Title: Improvements in or relating to apparatus for optically projecting microfilms
IPC: G03B21/11
Filed: 1952-09-30
Abstract: 721,723. Optical projection apparatus. CHEROUVRIEB, R. E. Sept. 30, 1952 [Oct. 1, 1951], No. 24503/52. Class 97 (1). A projector comprises a box having an inclined front face with an aperture to accommodate the projection system, supporting arms each made of foldable elements and hinged to the side walls of the box, a lid for the box hinged to the upper ends of the supporting arms, a mirror inside the lid and means for locking the arms and the lid so that the projected image is reflected downwards on to the table in front of the apparatus or horizontally on to a vertical screen behind the apparatus. As shown, Fig. 2, the mirror 13 is secured in the lid 12 of the casing 1. Each side of the lid is pivoted at 18 to an arm 11 hinged at three intermediate points to be collapsible inwards, the central hinge being locked, in the straight position of the arm, by a sliding bolt 22. The inclined front of the casing is hinged and the optical system, Fig. 3, on a ring 31 is rotatably mounted thereon. The front condenser member 34 is secured in the aperture 32 by a ring 35. Spacers on four rods extending rearwardly from the ring locate the heat filter 36, plates 42, 44 supporting condenser elements 40, 46, the lamp support 52 and reflector 49. Four spring-loaded rods 66 pass through the ring 31 and support the edges of glass plates 64, 65 so that the spring tension presses the plates together to locate a film between for projection. At either side of the plates slits are formed in the ring 31 and so that both film spools may be located to one side of the projection lens, a return film path is provided round the rear of the projection system along a horse-shoe shaped guide channel provided with a number of rollers such as 57a. The two spools are mounted in a carrier secured to a projection from the ring 31. The carrier has a projection co-operating with a cam on the front of the casing to swing the spool carrier clear of the arm 11 as the projection system is rotated to change the orientation of the projected picture.
Patent GB-1110799-A (GB)
Title: Improvements relating to conveyors for strip material
IPC: H01M50/414
Filed: 1964-06-12
Abstract: 1,110,799. Endless conveyers. POROUS PLASTICS Ltd. 10 June, 1965 [12 June, 1964], No. 24575/64. Heading B8A. Strip material for use in the manufacture of microporous battery separator plates is passed through a series of leaching trays by conveyers each of which comprises an endless supporting belt 126 of woven nylon fabric passing under guide bars 142 and over support bars 148. To prevent the strip material from floating in the trays an upper conveyer 127 is provided to press the material into contact with the belt 126. The conveyer 127 comprises a pair of chains 128, Fig. 4 (not shown), between which extend brushes 129 having polypropylene bristles 131 resting on the material. The bristles are mounted in metal backs connected by pin-andslot connections to L-shaped supports secured to the chain links. The conveyers 126, 127 are driven by electric motors provided with control means whereby their speeds may be matched, or varied independently. In a modification, Fig. 5 (not shown), five trays are arranged one above the other and the strip is passed forwards through the top tray, back through the next tray and so forth.
Patent GB-410660-A (GB)
Title: Tailors draughting appliance
IPC: A41H23/00
Filed: 1933-09-06
Abstract: 410,660. Appliance for marking fabrics and the like. SLOMAN, H. J., 23, Meadway, and BAILEY, H. R., 46, Dawlish Drive, both in Seven Kings, Essex. Sept. 6, 1933, No. 24677. [Class 141.] An appliance such as is used by tailors for marking cloth comprises a container a for powdered chalk or the like provided with a toothed disc c mounted in bearings in the sides of the box and protruding slightly through a slot b. A pad e is pressed by coiled springs against the powder, said springs also bearing against the cover f of the box. The cover snaps over suitably shaped projections on the box.
Patent GB-1350030-A (GB)
Title: Concrete tile press
IPC: B28B5/04
Filed: 1972-05-25
Abstract: 1350030 Concrete tile press J HILLJE 25 May 1972 [27 May 1971] 24710/72 Heading B5A A concrete tile press comprises at least two mould tables 3 (Fig. 1) movable independently along parallel tracks 2 between at least two working stations. At least one concrete feeder 7 and a pressing die 13 are movable parallel to one another and transverse of the tracks 2. As described for moulding two-layer tiles, two mould tables 3 move along rails 2 between two filling stations X, Y and a pressing station Z. Concrete feeders 7 and 8 supply facing and core concrete respectively and are guided by rollers on rails 6. Their rectangular outlets are sealed by a plate 10 when between stations. While one mould table 3 is receiving facing and then core concrete, the second table is undergoing pressing and then tile ejection. The tables and feeders are moved by two interconnected cylinders 14, 15 (Fig. 5), one piston being connected to a machine frame, and the second to the table or feeder.
Patent GB-498006-A (GB)
Title: Improvements in or relating to apparatus for baking radiator cores
IPC: B60J1/14
Filed: 1937-04-29
Abstract: 498,006. Making radiators; soldering. MUNCH, H. S., and BOERGER, M. G. April 29, 1937, No. 24784/38. Convention date, Sept. 16, 1936. Divided out of 497,927. Drawings to Specification. [Classes 83 (ii) and 83 (iv)] In an apparatus for making radiator cores and other metal articles having thin walled tubes with thin fins attached, the work is squared and straightened after heat treatment. Pressure members some of which are'movable for clamping and releasing give the article the required shape and are adjustable. The core or the like is lifted by hydraulic means from a support to a position above, at which the pressure members are situated, hydraulic means being also employed for actuating the clamping by certain of the pressure members. A delayed action operates between the lifting means and the source of fluid pressure. The apparatus comprises an oven heating means squaring unit loading station conveyer and acid bath and is described in Specification 498,005. A system of hydraulic and electric control operates automatically with the exception of placing a fresh core in position to be dipped, actuating a lever to start the dipping mechanism, and sliding the core on to the loading station or automatically conveying it to the oven and thence to the squaring means. The oven is of the convecter type and is described in Specification 497,927.
Patent GB-806094-A (GB)
Title: Improvements in or relating to laundry ironing machines
Inventor: BOAM HARRY
IPC: D06F67/00
Filed: 1956-08-14
Abstract: 806,094. Ironing-machines. MANLOVE, ALLIOTT & CO. Ltd. Aug. 9, 1957 [Aug 14, 1956], No. 24826/56. Class 138 (2). In a laundry ironing-machine having at least two spaced consecutive concave ironing beds 13, 14, each with an ironing roller 11 or 12 working therein, so that the articles pass through each bed in turn, means for transferring the articles between the two beds 13, 14, comprises endless tapes (or their equivalent) therebetween and guide means are provided around which the tapes turn into or out of the working run before they reach the ironing rollers 11 or 12. The guide means comprise guide bars 28, 29, the rounded edges of which engage the tapes in notches. Between the beds 13, 14 is a convex-shaped bridge 20 over which the articles pass, the shelf portions 26, 27 at the ends thereof being lower than the crown so that the tapes bear down on the articles with an increased effect. On the return of the tapes at higher level, they pass over and are supported by a guide tube 25 and a roller 22. Sequence of movements is indicated by the arrows. Each tape is tensioned by an arm 24 carrying a bobbin 41 resting on the return run of a tape and pivoted about the axis of the guide bar 25. In transferring the articles the tapes pass through gaps across the width of an assembly of flexible stripper blades 16 bearing on the periphery of the delivering ironing roller 11, overlying the working run at the receiving end. A tape drive taken off the ironing roller 11 is such that the linear speed of the tapes is equal to the peripheral speed of the roller. It comprises the roller 22 of the same diameter and rotating at the same speed as, but in the opposite direction to, a second roller 17 frictionally engaging with the ironing roller 11 and operative connections between the rollers 17 and 22. The roller 17 is at the end of arms 18 swinging about the axis of the roller 22 and extends for the full length of the iron roller 11.
Patent GB-1045247-A (GB)
Title: Polymerization of conjugated diolefins
IPC: C08F236/04
Filed: 1964-06-16
Abstract: A process for polymerizing at least one conjugated diolefine using a catalyst comprising mixtures of organo metallic compounds and transition metal compounds in a solvent medium is characterized in that a portion of the solvent is an ether R-O-R wherein R may be the same or different radicals selected from phenyl, naphthyl, biphenyl and tolyl and substituted derivatives thereof, the said ether being employed in amounts such that the mol ratio of ether to organometallic compound ranges from 1:1 to 400:1.  The organometallic compound is preferably an aluminium compound AIR2X where R is a hydrocarbon radical and X is hydrogen, a hydrocarbon radical or a halogen atom and the transition metal compound is preferably a halide of a Group IVb metal (Periodic Table as in " Handbook of Chemistry and Physics").  In embodiments and specific examples cis-1,4-poly-isoprene and cis-1,4-poly-(2-ethyl butadiene) are prepared using as catalysts aluminium trialkyl aliphatic etherates or aluminium trialkyls and titanium tetrachloride, diphenyl ether being employed as the ether part of the solvent.
Patent GB-1139314-A (GB)
Title: Improvements in or relating to bracelets
IPC: A44C5/22
Filed: 1966-06-04
Abstract: 1,139,314. Latch fastenings. M. J. TAYLOR. 4 June, 1966, No. 24993/66. Addition to 897224. Heading E2A [Also in Division A3] A bracelet includes first and second portions 10, 11 each of approximately part-circular configuration, the two portions being hingedly connected together at one of their ends and releasably secured near the other at which each has an apertured end plate 13, 14, the securing means including a resilient strip 16 which is retained by engagement of one end part 17 thereof with the first portion of the bracelet, the strip passing through the aperture of the end plate of said first portion and being slidably engageable in the second portion, the other end part 20 of the resilient strip being arranged to engage the end plate of said second portion to limit the travel of the strip out of the second portion of the bracelet, a single slit 19 being formed in the strip, said slit being arranged to receive an abutment 15 of the end plate 14 of the second portion when the bracelet is in the closed position, the end part 17 of the resilient strip constituting a projection which can be moved manually to effect disengagement of the slit and the abutment. In the construction shown the part 17 passes through an aperture 18 in the portion 10. The part 20 of the strip is in the form of a tongue which is engageable with the abutment 15.
Patent GB-947595-A (GB)
Title: Process for the manufacture of pyridine carboxylic acid amides
Filed: 1960-07-18
Abstract: Pyridine carboxylic acid amides are prepared by reacting a pyridine carboxylic acid with ammonia or an amine or a salt thereof in the presence of sulphamic acid or a salt thereof, e.g. at 120-180 DEG C., preferably in the presence of an inert solvent.  The pyridine nucleus may be substituted by alkyl or alkoxy groups.  The amine used may be primary or secondary aliphatic, araliphatic, cycloaliphatic, aromatic or heterocyclic amines; diamines give di-pyridine amides. Examples prepare (1) and (2) nicotin amide from nicotinic acid and ammonium sulphamate, with or without ammonia; (3) and (4) isonicotinamide; (5)-(8) nicotinic acid diethylamide. Specification 450,051 is referred to.
Patent GB-803899-A (GB)
Title: A method and apparatus for stripping the covering from an electric conductor
Inventor: MACKENZIE WILLIAM ALEXANDER
IPC: H01B7/36
Filed: 1956-08-16
Abstract: 803,899. Stripping cables. SOUTHERN UNITED TELEPHONE CABLES, Ltd. Aug. 15, 1957 [Aug. 16, 1956], No. 25105/56. Drawings to Specification. Class 36. A plastic covering is stripped from a conductor by passing the covered conductor continuously through a device, such as a pair of pressure rolls, which crushes and flattens the covering so that it is completely or substantially split into two parts which fall away from or are easily separated from the conductor. The separation may be effected by taking up either the two parts of the covering or the conductor or both on a driven spool or spools. Where only the conductor is taken up, the parts of the covering may be removed by a suction device. The conductor may be heated before or during its passage through the rolls.
Patent GB-971185-A (GB)
Title: Improvements in or relating to portable kitchens
IPC: F24C3/14
Filed: 1962-06-30
Abstract: 971,185. Furniture combinations; camp cooking apparatus. F. LUPTON. July 1, 1963 [June 30, 1962], No. 25185/62. Headings A4D and A4H. Apparatus for campers use comprises a collapsible table formed of the body 7 of a carrying case 5 and detachable legs 11 which fit into sockets 10, a windshield 6 formed of panels hinged together at 15 and a butane store 21 with burners 22 the lid 20 of the carrying case being engaged with the upper edges of shield 6 to brace the assembly and form a shelf.
Patent GB-934476-A (GB)
Title: Tube producing device
IPC: B21C37/12
Filed: 1962-07-02
Abstract: 934,476. Coiling helically seamed tubing; welding by pressure. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. July 2, 1962 [July 31, 1961], No. 25205/62. Classes 83 (2) and 83 (4). A device for forming tubes by helically winding a metal band comprises in combination a discontinuous series of shoes of low-friction and electrically insulating material which are arranged on a circle so as to form a cylindrical corset corresponding to the outer face of the tube to be obtained, and spraying means for lubricating the contacts between the shoes and the metal band. Metal strip t is fed by rollers 18, 19 to series of plastic shoes 7, of, for example, polytetrafluoroethylene, arranged in circles, which coil the strip helically to form a tube T, liquid, e.g. water or oil, from a jet 10 forming a lubricating film. The edges of the strip are heated by high-frequency electrodes 12, 13 so that the edges weld together when they come into contact with one another. The completed tube T is supported on rollers 21. The shoes 7 may be disposed at the same inclination as the winding helix. The edges of the strip may be clipped together.
Patent GB-968750-A (GB)
Title: A supporting device for the edge of panels for a lining of a ceiling, wall or similarsurface
IPC: E04B9/04
Filed: 1962-07-02
Abstract: 968,750. Suspended ceilings. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. July 2, 1962 [June 30, 1961], No. 25282/62. Headings E1V and E2B. An arrangement, for supporting the edges of a ceiling panel 4 from carrier beams 1, comprises twopart fastening members, each with the upper part 9 attached to a beam 1, and pivoted to the lower member 10 by a rivet 14 which also fixes one end of a spring clip 15 to the fastening member, in combination with an L-shaped support member 8, having its vertical leg bent over to be supported between the fastening members and the spring clips, (and separated from the wall by foamed plastics or rubber strips 21). The panels 4 are perforated, and covered with porous paper 5 and a sound absorbing filler 6, and are supported at the interior of the ceiling by bearers 2 on fasteners 3.
Patent GB-360535-A (GB)
Title: Improvements in or relating to fuel injectors for internal combustion engines
IPC: F02M59/10
Filed: 1930-08-26
Abstract: 360,535. Fuel injectors. M'CULLOUGH, S. J., 7, Alfred Street, Belfast. Aug. 26, 1930, No. 25405. [Class 7 (iii).] A fuel injector is formed in a block 1 in which is situated a plunger 11 actuated by the pressure in the engine cylinder 14 through a passage 13. A piston 5 and a plunger 7 actuated by the plunger 11 through a lever 8 acts on the fuel, which is delivered past a non-return valve 3 into a chamber 2. The chamber communicates with the cylinder by a port 15a controlled by a valve 16. The lift of this valve is regulated by a screw-threaded bush 21. The valve is opened by an engine-driven rod 27 acting on a lever 25 and closed through springs 22, 17.
Patent GB-749474-A (GB)
Title: Improvements in or relating to drill press assembly
IPC: B23B39/14
Filed: 1953-09-15
Abstract: 749,474. Drilling machines. GOLDSCHMIDT, H. Sept. 15, 1953 [Nov. 21, 1952], No. 25447/53. Class 83(3). A drilling machine comprises a number of identical base-blocks 3 each having a pair of faces at right angles to one another, a supporting column 11 parallel to one of the faces of each block, and a joint block 12 slidably and rotatably mounted on each column and having a bore at right angles to the column to carry a tubular support 15 for a drill 24. Each block 12 may be adjusted by a screw 23 mounted in a collar 21 clamped around the support 15. Each base block 3 is clamped to either the upper or lower face of the bed 1. Each drill 25 is fed manually or by power and is rotated by a motor 28, the drill and motor being mounted on opposite ends of the support 15, through which the driving shaft passes.
Patent GB-350819-A (GB)
Title: Improvements in or relating to apparatus for use in electrical measurements
IPC: G01R17/16
Filed: 1930-08-26
Abstract: 350,819. Pressure meters. SHEPHERD, G. R., 2, Norfolk Street, Strand, London.- Westinghouse Electric & Manufacturing Co. ; East Pittsburgh, Pennsylvania, U.S.A.) Aug. 26, 1930, No. 25450. [Class 37.] A thermionic-valve voltmeter comprises a plurality of triodes so interconnected that their plate currents are additive, and having a measuring or indicating instrument in the output circuit, the voltage to be measured being impressed on the grids of the valves. The voltage 1 to be measured is applied to a potentiometer resistance 2, from which a fraction is tapped and applied to the grids 9 of two three-electrode valves 10. Negative bias is impressed on the grids 9 by a battery 18 connected between a variable resistance 14 and the contact arm 20 of a potentiometer resistance 21 in series with fixed resistances 22. A microammeter 24 and a battery 25 are connected in the plate circuits of the valves 10, means being included for independently adjusting the plate voltages. The input to the valves 10 is balanced by the earth connection shown in Fig. 2, in which a contact 31 adjustable along a resistance 30 is connected to earth, the arm 20 also being connected to earth through phones 34. The contact 31 is adjusted until no sound is heard in the phones, in which case the currents through the resistances 22 are equal and no stray currents exist between the arm 20 and earth. In a modification the resistance 30 is replaced by a differential condenser. The voltage to be measured simultaneously energizes the grid of one valve positively and the grid of the other valve negatively.
Patent GB-720596-A (GB)
Title: Improvements in and relating to a carrying device for bricks
IPC: E04G21/16
Filed: 1951-10-31
Abstract: 720,596. Load-engaging means. LUDOWICI, J. W. Oct. 31, 1951, No. 25460/51. Class 78 (4). [Also in Group X] A device for supporting bricks 1 in close relationship during transport comprises angle pieces 5 suspended from a carrying beam 7 by rods 6, the bricks being supported on tubes or rods 2 carried by the pieces 5, additional tubes 9 being provided for extending the rods 2, e.g. by being slid over the rods 2, when it is desired to unload the device, and means, e.g. a winch 8, for moving the bricks from their stacked position to their " building position " (see Fig. 4a). The rods 2 and tubes 9, which pass through holes in the bricks 1, are pulled out when the bricks are in the " building position."
Patent GB-268668-A (GB)
Title: Improvements relating to the manufacture of propellers
IPC: B21K3/04
Filed: 1926-10-14
Abstract: 268,668. Mitchell, E. Oct. 14, 1926. Screw propellers. - Propellers, particularly those of light metal for aircraft, have separate blades formed by extruding the metal in a direction parallel to the length of the blade from a container a through a die b whose cross-section varies to give the required section of the blade. The die and container may be independent. The length of the die is such as to enclose one half or one third of the length of the blade, or the die may be constructed so as to enclose the whole of the blade. The die and container are made in segments to permit extraction of the work. According to the Provisional Specification, the propeller may be finished by machining. The method is stated to give a longitudinal fibrous structure.
Patent GB-1421000-A (GB)
Title: Polishing powders
IPC: C09K3/14
Filed: 1973-05-30
Abstract: 1421000 Oxide coated mullite LONDON & SCANDINAVIAN METALLURGICAL CO Ltd 17 May 1974 [30 May 1973] 25681/73 Heading CIA [Also in Division C4] A polishing power comprises a particulate alumina silicate base material of a mullite type and at least one rare earth oxide coated upon the particles of the base material. The composition may be obtained by precipitating a rare earth compound on to the base material and subjecting the resultant mixture to calcination to convert the compound into the oxide. The oxide may comprise at least 5% by weight of the mixture. The base material may be obtained by calcination of china clay, may be molochite or may be calcined or uncalcined fire clay or fire ash.
Patent GB-689450-A (GB)
Title: Improvements in or relating to sewing machines
Inventor: NEUKIRCH JOHANNES
IPC: D05B75/00
Filed: 1951-11-06
Abstract: 689,450. Sewing-machines. PFAFF AKT.- GES., G. M. Nov. 6, 1951, No. 25905/51. Class 112. In a sewing-machine comprising a worksupport 1, and a frame having a base-plate 6 and upper and lower arms 2, 3, the base-plate is mounted at a rear corner of the work-support, the upper arm extends diagonally over the work-support, and the lower arm extends below the work-support. A motor 8 depends from the lower arm.