baber/WOPTO huggingface dataset:
Patent GB-1516368-A (GB)
Title: Hydroxyl-containing vinyl chloride copolymers
IPC: C08F214/06
Filed: 1975-10-20
Abstract: 1516368 Hydroxy-containing vinyl chloride copolymer BASF AG 20 Oct 1975 [25 Oct 1974] 42888/75 Heading C3P A binder based on a hydroxyl-containing vinyl chloride copolymer having a K value according to Fikertscher of 30-60 has the following composition of polymerized units and 50-90% w/w of vinyl chloride, 5-40% w/w of a hydroxyalkylacrylate or methacrylate (alkyl C2-4), 5-40% w/w of t-butyl acrylate or methacrylate, and 0-10% w/w of one or more further comonomers. The specific examples describe the production of copolymers from vinyl chloride, hydroxypropyl acrylate, t-butyl acrylate and optionally glycidyl methacrylate by aqueous emulsion polymerization using sulphated ethoxylated isooctylphenol as emulsifier.
Patent GB-1082533-A (GB)
Title: Improvements relating to axminster carpet looms
Inventor: LOWE HARRY FREDERICK
IPC: D03D39/02
Filed: 1964-10-21
Abstract: 1,082,533. Gripper axminster looms. BRINTONS Ltd. Oct. 11, 1965 [Oct. 21. 1964], No. 42960/64. Heading D1E. In a three-shot Gripper-Axminster loom the grippers 18, Fig. 1 move upwardly through the warp and grip the tuft yarns 17, three shots of weft 30, 31 and 32 Fig. 3, are inserted simultaneously by needles 25, 26 and 27, tufts 41 are severed and the grippers 18 move downwardly and forwardly along a line 36 to the Fig. 3 position to move the shots 30, 31 forwardly and simultaneously the reed 37 moves the shot 32 forwardly, the grippers 18 move down through the shed (Fig. 4) where the reed 37 completes the beat-up and the shed starts to change, the grippers open (Fig. 5) and move slightly back and a comb 40 raises to release the previously inserted tuft 39, the grippers rise (Fig. 6) to raise the tufts 41 which are held by the comb 40 whilst the grippers move to the Fig. 1 position for the next cycle. A cam-lever mechanism (Fig. 2) operates the grippers and reed.
Patent GB-1169460-A (GB)
Title: Electronic Apparatus Forming a Frequency Memory.
Inventor: PRETI JEAN CLAUDE
IPC: G01S13/58
Filed: 1967-09-21
Abstract: 1,169,460. Transistor oscillator circuits; radar. SOC. DE FABRICATION D'INSTRUMENTS DE MESURE (S.F.I.M.). 21 Sept., 1967 [21 Sept., 1966], No. 42972/67. Headings H3T and H4D. The frequency of an oscillator 5, normally synchronized by periodic input signals, is controlled by the output of a frequency to voltage converter 8 so as to be equal to that of the input signals, a capacitor 11 storing the control voltage whereby the oscillator frequency is maintained during interruptions of the periodic input signals. As shown, synchronizing signals at 2 (e.g. from a Doppler radar) are shaped by a bi-stable flip-flop using transistors T 1 , T 2  and fed on lead 4 to synchronize an oscillator comprising unijunction transistor T, and junction transistor T 8 . A monostable circuit comprising transistors T 3 , T 4  provides a voltage which is stored by capacitor 11 and which is proportional to the frequency of the synchronizing pulses at 2. This voltage is passed by transistors T 5 , T 6  to the emitter of unijunction transistor T 7  so as to maintain its frequency at a value dependent on the charge of capacitor 11 in the event of temporary interruption of the synchronizing pulses at 2. The pulses from the oscillator T 7  are passed by an emitter follower T 9  to a pulse stretching and impedance converting circuit comprising transistors T 10  ... T 12 .
Patent GB-1129095-A (GB)
Title: Method for producing hollow plastics bodies
IPC: B29C49/42
Filed: 1965-10-12
Abstract: 1,129,095. Blow-moulding; waste removal. W. BATTENFELD. 12 Oct., 1965 [23 Oct., 1964], No. 43171/65. Heading B5A. In the blow-moulding of plastics bodies from a tube, the blowing mandrel is inserted into the tube at a predetermined speed and pressure while expanding the tube and then, when the tube is completely expanded, the mandrel speed is decreased and its pressure increased while separating waste from the formed body. In one embodiment, Fig. 1, the mandrel 4 is connected to an elbow lever comprised of a first link 9 pivoted to the mandrel 4 at one end and to a second link 10 at the other, the second link 10 being pivoted on a fixed support 13 and connected to a driving member e.g. cylinder 16, the links initially at an angle substantially less than 180 degrees, the mandrel speed decreasing while the pressure increases. The second link 10 is preferably a bell crank lever connected to the first link 9 at one end, the driving member being connected at the other end, the second link being pivoted to the fixed support therebetween. In a further embodiment, (Fig. 5, not shown), the mandrel (4) is fixed to rod (22) of cylinder (21) itself mounted on the rod of a further cylinder (26), suitable fluid pressures being regulated by pipes (23, 24, 27). In Fig. 6, not shown, cylinder (21), carrying the mandrel (4) on its rod (22), has a two-part supply pipe (29, 30) supplying low pressure medium initially through (30) at high speed and then high pressure medium through (29), pipe (30) having a non- return valve (31).
Patent GB-1100180-A (GB)
Title: Domestic laundry machines
IPC: D06F39/02
Filed: 1966-09-27
Abstract: 1,100,180. Washing - machines. BLACKSTONE CORPORATION. 27 Sept., 1966 [23 Oct., 1965], No. 43186/66. Heading D1A. A washing machine with an oscillatable agitator has two separate dispensers for bleach and rinse agent mounted in the top of the agitator one of which dispenses during washing and the other during and after spin drying. During washing water flows through parts 17 in the agitator, through a lint filter 21 and out through hollow vanes 18. During this process water splashes through holes 29 in a container 27 and washes bleach out of the container into the wash tub through the hollow vanes 18. Rinse agent is contained in an annular container 30 and remains there during washing. During the spin drying process however the rinse agent is forced up the sloping side walls 31 and into an annular compartment 37 where it remains due to centrifugal force. When spin drying ceases it flows out of the annular compartment 37 via ports 38 and into the rinsing water.
Patent GB-1024892-A (GB)
Title: Improvements in or relating to coating methods and apparatus
IPC: B05B5/04
Filed: 1962-11-15
Abstract: 1,024,892. Spray-producers for coating chairs, &c. N. R. WALLIS. Nov. 14, 1963 [Nov. 15, 1962], No. 43218/62. Headings B2B and B2F. An apparatus, suitable for spraying liquid or powdered coating materials, e.g. paint, on to an article such as a chair 1, comprises a rotatable cup-shaped member 28, a paint nozzle 43 for introducing the coating material to the member, a shroud 27 at least partially surrounding the member 28, a high voltage supply to the member 28 to provide an electrostatic field between the member and the chair, which is at earth potential, and a plurality of air jets 53, 54 for directing a convergent stream of compressed air 55, 56 from the shroud 27 towards the chair 1. The member 28 is of ebonite and includes a metal insert 63, and a flat disc 64 joined to an outer cup-shaped portion 65 by three webs 66. The mouth of the cup is tapered to provide a sharp edge at 67. The shroud 27 comprises a rear portion 46 formed with an annular channel 50 into which air is fed from a connector 30, and an elongated slot 51 through which the nozzle 43 projects, and a front portion 47 provided with rings 61 and 58 each containing a plurality of holes, and formed with a generally annular passage 52 and the holes 53, 54 which are inclined in sequence at angles of 5, 8, and 11 to the axis of the revolution of the member 28. Conductive or semi-conductive material is painted on or incorporated in the members 27 and 28 to provide them with a very high electrical resistance and the high voltage supply passes from a cable 36, through a resistor, and through the air motor for rotating the member 28 to the said member itself. The air jets avoid the pattern effect usually associated with electrostatic spray apparatus. The apparatus includes a trigger 24 controlling a microswitch 25 connected by a cable 6 to control equipment 18a mounted on a high voltage radio frequency generator 7, Fig. 7. A cable 9 connects the equipment 18a to valves 19, 20 and 8 which control respectively the paint line 4, the air line 3 for the motor for rotating the member 28, and the air line 29 for the shroud 27.
Patent GB-1079258-A (GB)
Title: 19-nor-progesterone derivatives
Inventor: DIASSI PATRICK ANDREW
IPC: C07J71/00
Filed: 1964-10-23
Abstract: The invention comprises compounds of formula <FORM:1079258/C2/1> wherein X is a hydrogen or halogen atom, and R and R1 are hydrogen atoms or in combination a group <FORM:1079258/C2/2> wherein Q is an alkyl, haloalkyl, cycloalkyl, cycloalkyl-alkyl, aryl, aralkyl, heterocyclyl or heterocyclyl-alkyl group and P is a hydrogen atom or one of Q, and their preparation by (i) reaction of a compound of formula <FORM:1079258/C2/3> with an alkyl orthoformate to give the corresponding 3-alkoxy-D 3,5-compound, halogenating this to give the corresponding 3-keto-6-halo-D 4-compound, and treating this with either (a) for example choranil, to give the 6-halo-D 4,6-compounds of the invention, or (b) a dehydrohalogenating agent to give the 6-unsubstituted-D 4,6- compounds of the invention, followed, if desired, by epoxidation to give the corresponing 4a ,5a -oxido compound and treating this with a hydrohalic acid to give a 6-halo-D 4,6-compound of the invention, (ii) hydrolysis to the 16a , 17a -diol with formic acid, or (iii) reaction of the 16a ,17a -diol with an appropriate aldehyde or ketone.  The compounds of the invention have progestational activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration.
Patent GB-1007389-A (GB)
Title: Polystyrene compositions
IPC: C08J9/00
Filed: 1963-11-04
Abstract: A composition comprises 50 to 95% by weight, based on the total weight of polystyrene, of non-expansible polystyrene, 50 to 5% by weight, based on the total weight of polystyrene, of expansible polystyrene and a nucleating agent.  The non-expansible polystyrene can be crystal polystyrene or high impact polystyrene or a mixture of the two. Examples of high impact polymers include a terpolymer of 5% acrylonitrile, 5% butadiene and 90% polystyrene; a copolymer 5% butadiene and 95% styrene; a mixture of 95% of a polymer of styrene made in the presence of 5% polybutadiene; a copolymer of 5% chlorosulphonated polyethylene and 95% styrene; a blend of 97.5% polystyrene and 2.5% polybutadiene; a blend of 95% polystyrene and 5% of hydrogenated polybutadiene containing 35.4% residual unsaturation; polystyrene formed in the presence of 5% of hydrogenated polybutadiene containing 4.5% residual unsaturation; a blend of 95% styrene and 5% polyisoprene; a copolymer of 99.5% styrene and 0.5% divinyl benzene.  The expansible polystyrene is in the form of particles preferably containing between 1 and 15% by weight of a non-reactive organic liquid such as hydrocarbons, alcohols or halogenated hydrocarbons. Carbon dioxide liberating nucleating agents are mixtures of a basic substance and an acid having at least 3 milli equivalents of acidic hydrogen per gram.  The composition can be extruded to form a foam sheet which can be used for making a cup by deep drawing it over a vacuum former. Specification 988,877 is referred to.
Patent GB-1356008-A (GB)
Title: Mine roof supports
IPC: E21D15/50
Filed: 1971-09-17
Abstract: 1356008 Mine roof supports COAL INDUSTRY (PATENTS) Ltd 12 Sept 1972 [17 Sept 1971] 43411/71 Heading E1P In a mine roof support, see Figs. 1 and 2 of Prov. Specification (not shown), comprising a series of telescopic legs upstanding from a base and each mounted thereon by a guide mounting having a central bore through which the leg extends to protrude into the base for support therein by resilient means, a replaceable strengthening sleeve is located between the guide mounting and the base. The sleeve consists of plates 12, 16 interconnected by a tubular member 20 and plates 26 which may be apertured to enable one sleeve to be connected to another by means of a tie-bar. The component parts of the sleeve may be welded together and the sleeve connected in position by bolts passing through holes 14, 18 as shown.
Patent GB-1344480-A (GB)
Title: Apparatus for feeding sheets in register to a printing machine
IPC: B65H9/10
Filed: 1971-09-17
Abstract: 1344480 Feeding sheets KOENIG & BAUER AG 17 Sept 1971 [22 Sept 1970] 43480/71 Heading B8R Sheets being fed to a printing machine are detected for side register and an adjustment is made where appropriate. As each sheet reaches the front stops 5 its side edge passes between an illuminated triangular window 11 and a photocell. The current generated is compared with a predetermined value for correct side register and the position of the sheet is adjusted, if necessary, by a suction bar (6, Fig. 1, not shown) or by axial movement of the gripper cylinder 1 which takes over the sheet from the feedboard 3. Alternatively the gripper cylinder which transfers the sheet from cylinder 1 to the impression cylinder may be axially movable. The bearings 14 of the cylinder 1 are axially slidable by means of a wedge 16 moved by a piston and cylinder assembly 17. A stationary coil 20 and a core 21 movable with the wedge is used to detect the axial position of the cylinder to determine when the position of the sheet has been sufficiently adjusted.
Patent GB-1440473-A (GB)
Title: Filing folder for perforated papers
IPC: B42F13/02
Filed: 1973-09-20
Abstract: 1440473 Filing Folders C E GRUNDELL 20 Sept 1973 [21 Sept 1972] 43641/73 Heading B6E A filming folder comprises a rear cover 1, at least one flexible prong 3 attached to the rear cover so as to extend perpendicularly from a spine of the folder, on which prongs perforated sheets 5 can be threaded, and a channelled bar 14 which is slid over the spine to hold the cover 1 and the heads 3<SP>7</SP> of the prongs together, an apertured further part such as second cover, a flap or an envelope being engaged on the heads 3<SP>1</SP> and locked thereon by the bar 14. In a first embodiment, a three layer cover 1 is folded at its ends into a T-shaped cross-section to be accommodated in the bar 14 and is provided with holes 29, 30, 31 through which prongs 3 are threaded. An apertured front cover 7 and flap are threaded on enlarged heads 3<SP>1</SP> before the bar 14 is slid over the spine to lock the heads 3<SP>1</SP>, covers 1, 7 and flap 6 together. The flap 6 also has holes 8 which accommodate the prongs when their other ends have been threaded through the perforated sheets 5. In a second embodiment, the rear cover comprises either a stiffening insert (16) Fig. 3 (not shown) or pockets and the front cover is doubled over at the spine to provide a strip (7<SP>11</SP>), for accommodating the prongs. The front cover may be cut to provide a middle portion which replaces the flap 6. In alternatives, the front and rear covers may be integral.
Patent GB-1507139-A (GB)
Title: Rotary engine with prechamber
IPC: F02B75/02
Filed: 1976-10-21
Abstract: 1507139 Rotary positive-displacement fluid machines CATERPILLAR TRACTOR CO 21 Oct 1976 [1 March 1976] 43686/76 Heading F1F In.a rotary I.C. engine (of the nutational engagement type as described) having a pre-combustion chamber 36 communicating with the working chambers via an opening 38, each working face 50 of the piston 32 is shaped (by the provision of two recesses) to vary the size of the gas flow-path via opening 38 as the piston rotates and thus control combustion. As shown the piston face has a first recess 46 which is effective before t.d.c. to enhance flow of gas into the chamber 36, wherein fuel is injected at about t.d.c. when land 54 on the piston face 50 effectively closes the opening 38, and a second recess 44 which provides a progressively increasing flow-path as combustion occurs. The invention is also applicable to epitrochoidal and hypotrochoidal machines.
Patent GB-934511-A (GB)
Title: Improvements in or relating to devices for the lateral displacement of crop lying on the ground
IPC: A01D78/00
Filed: 1959-12-23
Abstract: 934,511. Haymaking machines. C. VAN DER LELY. Dec. 23, 1959 [Jan. 14, 1959], No. 43709/59. Class 6(3). A haymaking machine comprises a pivoted parallelogram frame 1-8, carrying a row of rake-wheels 13-18, half of the number of rakewheels being detachable and mountable in a second position, Fig. 2, in which the rakewheels are arranged in groups of two in V- formation. The frame comprises two main beams 1, 2 interconnected by parallel crossbeams 3-8 each having a bearing for a rakewheel crank. Three ground-wheels 9, 10, 11 are provided, two of which are casters and the rearmost, 12, a lockable swivel-wheel. The configuration of the parallelogram is maintained by an arcuate stay 40 connected between a cross-beam 4 and a bearing on the beam 1 and adjustably lockable in position. In the second position, Fig. 2, alternate rake wheels are mounted on short detachable curved members 19, 20, 21 on the cross-bars. In this position, Fig, 3, the rake-wheels can be either vertical or inclined thereto, the bearing 31 on the cross-bar being adjustable about a horizontal pivot 33 and the bearing on the arm 19 being double (22, 25). When the rake-wheels are non-vertical their tines inter-engage. The device can occupy a third position (dotted in Fig. I) in which the rake-wheels operate separately on the crop, for tedding. In each position the drawbar 39 is attached to a different place on the frame; in the third position, it is attached to the point 44. Specification 934,512 is referred to.
Patent GB-1377011-A (GB)
Title: Method of and apparatus for stretching plastics material film
IPC: B29C67/00
Filed: 1972-09-21
Abstract: 1377011 Fibrillatable films NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 21 Sept 1972 [22 Sept 1971] 43759/72 Heading B5B Fibrillatable films, preferably composed of polyethylene terephthalate, are produced by longitudinally stretching a film between roller pairs 2, 3 and 9, 10. The stretch print is localized by the edge 7 of heated prism 8 placed between the roller pairs. The film is given a second stretching by means of roller pair 13, 14, being heated in this second stage by means of heated, curved sheet 12. The prism 8 is preferably aligned so that face 16 which follows edge 7 is at an acute angle to the film; the alignment mast, however, be such that the first point of contact between the prism and the film is the edge 7. Preferably the first stretching is at a higher ratio, such as 1 : 4, than the second, which is for instance 1 : 1À5.
Patent GB-1083110-A (GB)
Title: Catalytic conversion of hydrocarbons
IPC: C10G47/20
Filed: 1965-10-15
Abstract: A process for cracking a hydrocarbon fraction boiling in the range 400-850 DEG  F. comprises use of a catalyst containing (a) nickel, tungsten or compounds thereof; (b) an acidic inorganic oxide in amorphous form selected from SiO2, Al2O3, MgO, ZrO2, or mixtures; and (c) a crystalline zeolite.  Typical cracking conditions are: pressure 500-10,000 p.s.i.g.; Hydrogen rate 1000-20,000 SCF/B.; space velocity 0.1-10v./v./hr. Comparative examples describe the cracking of gas oil.ALSO:A hydrocarbon conversion catalyst comprises a crystalline zeolite and an amorphous acidic in-organic oxide of SiO2, Al2O3, MgO, ZrO2 or mixtures which support a metal or compound thereof selected from nickel, tungsten or compounds thereof. Zeolites A, D, X, Y, inordenite, charazite and analcite are specified.  Preferred compounds of Ni and W are the oxides and sulphides.
Patent GB-949820-A (GB)
Title: Improvements in or relating to magnetos
IPC: H02K1/27
Filed: 1962-11-21
Abstract: 949,820. Ignition generators. ROBERT BOSCH G.m.b.H. Nov. 21, 1962 [Dec. 9, 1961], No. 44000/62. Heading H2A. Breakage of the sintered permanent magnet 14 mounted between an annular carrier 10 and pole shoe 11 of a magneto flywheel is prevented by clamping it wholly at the centre and thus eliminating bending stresses. The magnet is constructed to have a centre width l1 greater than edge width l2 and shaping it so that the outer radius is equal to or less than that of carrier 10 and the inner radius less than or equal to that of shoe 11 so that central clamping will be obtained regardless of the amount of shrinkage. In addition, improved magnetic characteristics are obtained.
Patent GB-1097586-A (GB)
Title: Regenerator systems for blast furnaces
Inventor: DAIN RICHARD JAMES
IPC: F28D17/04
Filed: 1963-11-07
Abstract: 1,097,586. Thermal regenerators. ASHMORE, BENSON, PEASE & CO. Ltd. Oct. 16, 1964 [Nov. 7, 1963], No. 44010/63. Heading F4K. In a method of operating a group of regenerative hot blast stoves associated with a blast furnace, combustion air for the stove on gas is pre-heated in a stove which has just come off blast. Three stoves 11, 12, 13 have combustion gas outlets 11d, 12d, 13d, air inlets 11a, 12a, 13a which can be connected alternatively to a blast air supply pipe 14 or to a combustion air supply pipe 16, and outlets 11b, 12b, 13b for the heated air which is delivered as appropriate either through valves 17, 18 or 20 and a pipe 15 to the blast furnace or to the combustion air inlet 11c, 12c or 13c of the stove on gas. As shown stove 12 is on blast, stove 13 is on gas and stove 11 has just come off blast, the path of the blast air being indicated by broken lines and the path of the combustion air and the combustion gases by heavy solid lines. A by pass pipe 21 and a valve 22 enable the temperature of the air delivered to the furnace to be controlled. Figs. b and c (not shown) indicate the connections used when stoves 13 and 11 are on blast.
Patent GB-441235-A (GB)
Abstract: 441,235. Bomb - dropping sights. STOYANOWSKY, A. T., 3, Rue d'Aguesseau, Paris, and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Jan. 17, 1935, No. 1617. Drawings to Specification. [Class 92 (ii)] [See also Group XX] A bomb-dropping sight comprises akinematographic camera photographing a scene by means of infra-red radiation from a moving aircraft when the latter is moving in a horizontal direction, and means for processing the film immediately and presenting a kinematographic picture of the scene to an observer in a predetermined period, the camera being oriented at a predetermined angle to the perpendicular such that the scene corresponding to the picture presented at any particular moment bears a relationship to the position of the aircraft, which is a function both of the height of the aircraft above the ground and of the speed of the aircraft parallel to the ground, with the result that an objective is located in a predetermined position in the picture at an instant when action on the part of the observer resulting in the release of a bomb becomes necessary if the bomb is to reach the objective. Corrections for wind and the like may be made.