baber/WOPTO huggingface dataset:
Patent GB-1199949-A (GB)
Title: An Improved Suede Type Product
IPC: D06N3/00
Filed: 1967-10-06
Abstract: 1,199,949. Embossing thermoplastics sheets. DUNBEE-ELM Ltd. 6 Oct., 1967 [31 Oct., 1966], No. 45876/67. Headings B6C and B6J. A sheet of synthetic thermoplastic polymer is provided with a suede-like appearance by embossing; the sheet contains 400 to 25,000 surface indentations per square inch, each having a depth of 0.002 to 0.5 inch and a surface diameter of 0.002 to 0.2 inch. The material may be polyvinyl chloride, polyethylene, a polyamide, or polypropylene and may incorporate a plasticizer, e.g. dioctylphthalate. The indentations are applied randomly by a suitable embossing plate; this plate is produced by first piercing a relatively soft metal plate with a set of needles of the required dimensions, taking an impression therefrom, and reproducing in hard metal, e.g. nickel, using an electroplating technique. The embossing plate is thus rovided with 400 to 25,000 projections to the square inch; it may be a flat plate or in roller form.
Patent GB-1130205-A (GB)
Title: Coincident current magnetic core storage matrix
IPC: G11C11/06
Filed: 1965-10-29
Abstract: 1,130,205. Magnetic storage matrices. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP., and FUJITSU Ltd. 29 Oct., 1965 [31 Oct., 1964], No. 45992/65. Heading H3B. A coincident current magnetic core storage matrix has two pairs of sense-inhibit windings threading the matrix each pair having a symmetrical arrangement with respect to the centre of the matrix and the pairs being symmetrical to each other with respect to an axis dividing the matrix parallel to row and/or column windings. In the arrangement of Fig. 7 the sense inhibit winding 14 is divided into four windings having terminals I1a I1a<SP>1</SP>, I1b I1b<SP>1</SP>; I2a I2a<SP>1</SP>, I2b I2b<SP>1</SP> which are arranged in pairs to thread the matrix symmetrical to the centre C. Since the two windings of each pair always run along adjacent rows the transmission characteristics as well as noise cancellation are improved. Fig. 8 (not shown) shows a further arrangement similar to Fig. 7 but having a different arrangement of cores, the windings of a pair of sense-inhibit windings not crossing each other. With the matrices shown in Figs. 7, S complete cancellation of spurious signals cannot be accomplished in a large matrix due to the half-select noise and induced noise caused by column currents having different transmission delay times in each of the windings. The above disadvantages are removed if the " double bow-tie " arrangement of two pairs of sense-inhibit lines as shown in Fig. 10 is employed. In this arrangement one pair of lines is symmetrical to the other pair about the axis passing through the centre of the matrix parallel to the rows and each pair is symmetrical about the centre. Spurious signals caused by half-select noises and half-select addressing currents in both row and column windings are cancelled as common mode signals because the physical length from sense terminals to noise sources are approximately equal. Fig. 11 (not shown) is similar to the " double bowtie " arrangement of Fig. 10 except that the core arrangement is modified and the windings of each pair cross each other between the upper and lower halves of the matrix.
Patent GB-1468554-A (GB)
Title: Offset printing press
IPC: B41F7/02
Filed: 1974-10-24
Abstract: 1468554 Offset printing press; replacing cylinders CHAMBON Ltd 24 Oct 1974 [24 Oct 1973] 46014/74 Heading B6C An offset printing press comprises an engraved or plate cylinder 2 mounted on the main frame 1, a blanket cylinder 4 and an impression cylinder 8 mounted on a subsidiary frame composed of horizontally-movable side plates 7 and screw assemblies which on rotation of a hand wheel, Fig. 2 (not shown), first release the pressure between cylinders 2 and 4 and then move cylinders 4 and 8 on frame 7 away from cylinder 2 to allow for replacement with differently-sized plate and offset cylinders. The screw assembly includes transverse shaft 19, worm gear 18, 15, compressible washers 17 and screw-threaded rods 13. The washers 17 exert a restoring force during the first revolution of the hand wheel but subsequently, after they have been completely expanded, the hand wheel causes direct movement of the side plates 7. The impression cylinder is pivoted on two-armed lever 10 at point 11, the pressure adjustment being by button 34; on movement of the subsidiary frame, the cylinder 8 is tripped from cylinder 4, but is restored at the same pressure on return of the frame.
Patent GB-1333007-A (GB)
Title: Manufacture of bags from strips of synthetic plastics material
IPC: B31B27/00
Filed: 1971-10-05
Abstract: 1333007 Strip of plastics bags; packaging bag strips; liquid container REAP CO 5 Oct 1971 [5 Oct 1970 25 May 1971] 46244/71 Headings B8K B8C and B8P [Also in Division B5] A continuous strip of plastics bags wherein each bag includes a nozzle receiving grommet 19 and is separable from an adjacent bag along a line of perforations 50, comprises at least two strips of plastics joined by longitudinal heat seals 36, 38 and transverse heat seals 40, 42. The walls of the bags may be multi-ply and one wall may comprise two loose laid layers alone or in combination with, in a loose laid manner, a three-ply laminate ("Saranex", Registered Trade Mark). The layers may be of polyethylene, and the permeability characteristics of one layer may be different from those of the other layer(s). Packaging.-The continuous strip is stored either in folded concertina fashion or as a roll within a dispensing box (70, Fig. 6a, 72, Fig. 6b). Liquid container.-Individual bags from the strip are used as inner liners for cartons.
Patent GB-943451-A (GB)
Title: Improvements in and relating to surface-treating members
Inventor: FITZALAN ANTHONY ALBERT
IPC: A47L11/164
Filed: 1961-12-27
Abstract: 943,451. Grinding and polishing. CIMEX Ltd, Oct. 26th, 1962 [Dec. 27, 1961], No. 46350/61. Addition to 842,035. Heading B3D. [Also in Division A4] In a modification of the surface treating appliance forming the subject matter of the parent Specification the or each resilient member is in the form of a sleeve with an internal diameter smaller than the external diameter of the pin inserted therein, and one end of the sleeve engages in a groove in the pin. In the embodiment illustrated the pins 11 having grooves 18 are gripped by the sleeves 15, 16 which are held in position in the holes 14 by the retaining plate 17 recessed in the brush back 12.
Patent GB-1009507-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23N1/00
Filed: 1961-12-28
Abstract: 1,009,507. Supplying liquid fuel to burners. C. BURKERT. Dec. 28, 1961 [Dec. 30, 1960] No. 46440/61. Heading F4T. An oil burner (not shown) is supplied with oil by a piston or vane-type pump 10 operated by an electric motor 24, means being provided for varying the stroke of the pump. The hollow piston 14 is pushed into its cylinder against the action of a spring 16 by a rod 21 having at its upper end a roller 23 engaging a spiral edge cam 32 on a shaft 29 coupled to the motor 24 by gear-wheels 25 . . . 28. The upward movement of the piston is controlled by a wedge-shaped slide or a face cam 35 which abuts a collar 22 on the rod 21 and is turned by a flexible or rigid shaft 33 connected to the shaft 34 of the face cam. The piston includes a spring closed disc valve 17 and the cylinder includes inlet passages 12 controlled by a valve disc 13. In the case of a vane-type pump the discharge rate is varied by displacing the eccentric pump housing. The piston pump is mounted in a housing 1 having an oil inlet 2 leading to an apertured tube 4 connected to a plug 5 and surrounded by a sieve 7. The plug 5, tube 4, and sieve 7 are removable. The housing has an outlet 3 connected to the burner. The burner is controlled by a circuit, Fig. 2, comprising a spring contact 44 adapted to be moved by a cam 41 on an internally-toothed wheel 40 mounted for rotation on the shaft 29. An eccentric 36 is secured to the shaft and runs in a planet wheel 37 which is prevented from rotating by a pin 38 movable in a slot 39 in a fixed support and which has teeth meshing with the toothed wheel 40. The circuit also includes a switching spring 46 which is moved by a small lobe 57 and by a large lobe 58 on the face cam 35. To start the motor the face cam 35 is rotated to cause the large lobe 58 to move the switching spring 46 into contact with a fixed contact 47. The cam 41 on the wheel 40 then moves from under the spring contact 44 which therefore engages a fixed contact 45. The face cam 35 can then be released and is moved by a spring so that neither lobe 57, 58 is operative. The switching spring 46 then engages the fixed contact 45. The spring contact 44 now energizes the motor and also energizes an electric resistance 64 which ignites the oil in the burner. The burner heat causes a thermal switch 51 to move to the left, thus de-energizing the ignition resistance 64 and establishing a second circuit for energizing the motor through a thermal switch 63 responsive to the temperature of a room heated by the burner. A thermal-lag switch 61 mounted near the burner is in parallel with the room thermal switch 63 and is open when the burner is hot. When the room thermal switch opens the motor continues to run until the cam 41 on the wheel 40 opens the contacts 44, 45. The motor shaft may be provided with a fan to provide combustion air.
Patent GB-964728-A (GB)
Title: Improvements in or relating to bleaching
IPC: D06L4/26
Filed: 1961-12-29
Abstract: An aqueous alkaline bleaching concentrate which upon dilution is suitable for bleaching textile materials, e.g. cotton, regenerated cellulose, polyester and polyamide fabrics, comprises at least 200 g/1 of a chlorite, e.g. sodium, potassium, and calcium chlorites and a stabilising and activating quantity of one or more water-soluble salts of one or more aliphatic or aromatic carboxylic acids, e.g. the sodium salts of formic, acetic, propionic, caprylic, malonic and benzoic acids.  The bleaching concentrate preferably contains 10-100 g.p.l. of the carboxylic acid salts, and the bleaching solution obtained by diluting the concentrate preferably contains 0.5-5 g.p.l. of the carboxylic acid salts.  The bleaching concentrate may also contain wetting agents, e.g. nonyl-phenyl-polyethylene glycol ether containing 4 molecules of ethylene oxide per molecule and the sodium salt of di-iso butyl naphthalene sulphonic acid, corrosion preventatives, e.g. sodium nitrate, buffer substances, e.g. disodium hydrogen phosphate, and optical bleaching agents, e.g. stilbene and cumarin derivatives.
Patent GB-955187-A (GB)
Title: Improvements in or relating to distributors for controlling a stream of material discharged from a vehicle
IPC: E01C19/20
Filed: 1961-12-29
Abstract: 955,187. Distributing grit. JOHNSTON BROS. (CONTRACTORS) Ltd., A. D. COLLINS, and A. B. BONE. March 29, 1963 [Dec. 29, 1961], No. 46726/61. Heading A1D. A distributer for controlling a stream of grit discharged from a vehicle on to a road surface is provided with a rotatable adjustable baffle 46 so constructed as to vary the width of the stream. The baffle 46 is provided with a stepped edge made up of a number of parallel portions joined by inclined helical portions. The distributer is bolted to the back of a tipping lorry and the grit is graded by a slidable baffle plate 17 provided with tines 25. The movement of material passing through an opening 26 is controlled by a guide 34 the edge 35 of which is of wavy configuration. The grit falls on to a rotating brush 54. A pivoted flap 57 is provided and pins 59 on the flap slide in slots 60. The baffle 46 and the guide 34 are both angularly adjustable.
Patent GB-1407300-A (GB)
Title: Display device
IPC: G02F1/055
Filed: 1972-12-20
Abstract: 1407300 Electronic watches SUWA SEIKOSHA KK 20 Dec 1972 [27 Dec 1971 28 Dec 1971] 47162/74 Divided out of 1407299 Heading G3T [Also in Divisions G5 and H4] A display device, e.g. for an electronic wrist watch comprises a first polarizer 21 having an incident face, a focusing device, e.g. a concave mirror 23, for receiving light that has passed through the polarizer 21, material 24, e.g. Gd 2  (MoO 4 ) 3  which exhibits double refraction upon the application thereto of an electric field, and a second polarizer 26 having a display face having an area less than that of the incident face 21, the mirror 23 directing polarized light through the parts 24, 26. A coloured plate 25 may be located between the parts 24, 26. The material 24 comprises a plurality of single crystals, or may be of transparent ferro-electric ceramic.
Patent GB-1085072-A (GB)
Title: Fabrics
Inventor: SISSONS CHRISTOPHER ROBERT
IPC: D04H11/08
Filed: 1963-11-29
Abstract: A nonwoven fabric having an integral structure comprises a base stratum in the form of a fibrous web, said web containing fibres located in planes substantially normal to the surfaces of the web, the fibres projecting beyond the surface of the web as fibre tufts, thus simulating a pile fabric, the fibre tufts being set in the base stratum.  The fibrous web also comprising heterofilaments having a potentially adhesive component which may be activated by heat or chemical treatment.  The method of making such nonwoven fabrics comprises needling a fibrous web, which may be cross-lapped, located on a support material, which may be a woven fabric or have the structure of a woven fabric, subjecting the structure to a setting treatment and thereafter separating the support material from the web.  The fibres employed may be cotton, wool, rayon, nylon, acrylic, vinylic, polyester or protein, and may be crimpable or shrinkable. The fabric thus produced may be attached to a rubber or other backing.
Patent GB-1245617-A (GB)
Title: Percussion motor
Inventor: VINCENT RENIC C
IPC: E21B4/14
Filed: 1968-10-04
Abstract: 1,245,617. Percussive motor. PAN AMERICAN PETROLEUM CORP. 4 Oct., 1968, No. 47291/68. Heading B4C. [Also in Division E1] A percussion motor for a "down-the-hole" drill comprises a housing 10, a hollow hammer piston 20, and a hollow anvil 28 adapted to receive a tool. A guide tube 46 secured to the housing guides a slidable valve piston 54 and includes a peripheral surface 86 which coacts with an annular member 84 on the hammer piston to act as a secondary valve. The valve piston 54 includes a valve member 58 which coacts with seats 78, 90 on the anvil and hammer piston respectively. Upward movement of the valve piston is limited by a stop 68. When the hammer piston and the valve piston are in their uppermost positions the axial distance between the upper surface 58A of the valve member and the point 17 is not greater than the fixed distance between seat 90 and the top of the annular member 84. When the motor is in a drill and the tool is contacting the work the anvil and the hammer piston assume the illustrated positions and motive fluid introduced via passage 26 passes via ports 52 and annular passage 55 into chamber 85, and via a throat 66 to the interior of the anvil. Differential pressures acting on the hammer piston cause the latter to move upwardly, while the valve member 58 is retained in engagement with the seat 78. Upon the secondary valve closing communication between the annular passage 55 and the chamber 85, further upward movement of the hammer piston will cause a reduction of pressure in the chamber 85 and subsequently the valve piston 54 will be urged upwardly until it contacts the stop 68. The pressures now acting on the hammer piston will cause the latter to be moved downwardly to impact the anvil. Prior to impact the seat 90 will engage the surface 58A of the valve member 58 and move the latter downwardly. Upon impact, the inertia of the valve piston 54 will carry the valve member 58 into engagement with the seat 78, and the motor will then assume the condition shown in Figs. 1A and 1B. Shock absorbing means are associated with the seats 78, 90 and with the stop 68. When the drill is raised from the work the anvil moves to a lower position defined by means not shown and the head 56 of the valve piston moves to a position in which fluid can pass into space 45 via ports 62. Reciprocation of the hammer piston is thus stopped.
Patent GB-1459788-A (GB)
Title: Vehicle guidance systems
IPC: G05D1/02
Filed: 1973-10-11
Abstract: 1459788 Leader gear systems NATIONAL RESEARCH DEVELOPMENT CORP 3 Oct 1974 [11 Oct 1973] 47490/73 Heading H4U Means are provided for removing errors in a leader gear system caused by currents induced in fixed conductors along the route such as reinforcing in concrete. Such errors may cause a vehicle with automatic steering to oscillate about its correct path. In the arrangement described, boxes 25 and 26, Fig. 2 each contain a circuit as shown in block form in Fig. 1 and the leader cable carries two different frequencies. In Fig. 1, sensing coils 10, 11 are tuned to the same frequency i.e. one of those carried by the cable, and are attached to opposite sides of the vehicle, the other pair of sensing coils being similarly arranged and tuned to the other frequency carried by the cable. After amplification and rectification the coils 10, 11 produce voltages V A , V B  which are added at 22 and subtracted at 21. The two resultant voltages are applied to a divider 23, the outputs of the two dividers being shown at VT 1 , VT 2 , Fig. 2, which after amplification and rectification are added at 29 and subtracted at 31. The summing amplifier 29 has unity gain and subtracting amplifier 30, 31 has gain A. The outputs of amplifiers 29, 31 are added at 32 and gain A is adjusted until the effects of conductors in the vicinity of the leader cable are at a minimum. A mathematical analysis is included.
Patent GB-1101380-A (GB)
Title: Epoxy resin compositions
Inventor: BOLLER ROBERT ANDREW
IPC: C09D163/00
Filed: 1964-12-24
Abstract: Coating composition vehicles which are capable of forming a hard coating at room temperature in the absence of a curing catalyst comprise an organic solvent solution of (a) a curable epoxidized ester of a natural or synthetic fatty acid, which fatty acid contains 8-26 carbon atoms in the fatty chain, and a polyhydric alcohol of 2-10 carbon atoms, the ester having 3-10% oxirane oxygen; and (b) a predominantly monomeric polycarboxylic partial ester having an acid value of at least 50 and which is the esterification product of a polyol which is a monomeric or oligomeric polyhydric alcohol and a chlorinated dicarboxylic acid or anhydride thereof, if desired in admixture with a non-chlorinated polycarboxylic acid or anhydride, at least 2 of the -OH groups of the polyol being esterified with the chlorinated dicarboxylic acid and, if used, the non-chlorinated polycarboxylic acid.  The vehicles may be pigmented to give coating compositions and may also contain curing catalyst such as benzyltrimethylammonium hydroxide and phosphoric acid.ALSO:Predominantly monomeric polycarboxylic partial esters are produced by esterifying a polyhydric alcohol with a chlorinated dicarboxylic acid or anhydride, possibly in admixture with a non-chlorinated dicarboxylic anhydride in solution in xylene, at least 2 of the alcoholic -OH groups being esterified.  In examples of the preparation of the esters the dicarboxylic acid material is hexachloroendomethylenetetra-hydrophthalic acid or its anhydride with or without phthalic anhydride, tetrahydrophthalic anhydride or hexahydrophthalic anhydride and the polyhydric alcohol is pentaerythritol and/or 1,1,1-trimethylol-ethane.
Patent GB-1491895-A (GB)
Title: Sound apparatus
IPC: G10H3/12
Filed: 1974-11-05
Abstract: 1491895 Sound systems R A-H SHAMMA 5 Nov 1974 47829/74 Heading H4R In a sound reproduction system a programme source, e.g. a disc or magnetic recording, supplies an audio signal together with a number of control signals. The reproducer separates the control signals from the audio signals and uses one control signal to control volume of the audio signal and another control signal to control the distribution of the audio signal between two reproducers. As described four control signals are recorded at separate frequencies at about 30 kHz, two carrying alternative forms of amplitude control information and the other two alternative forms of distribution control information. The control signals are separated from the audio signal by filters 184 to 190 and the alternative signals selected by switches 192 and 198, which can be ganged together. The volume information is fed through a control signal amplifier 194 to a variable gain amplififer 172 handling the audio signal. Similarly the distribution control information is fed through control signal amplifier 202 to control the distributer 176. The control signal amplifiers each have gain controls so that the effectivness of the control signals can be varied, while manual gain control and balance controls are provided in the audio amplifier and distributer. The distributer may comprise, Fig. 3, a pair of opposite conductivity type transistors 126 and 128 feeding the common audio signal to the L and R reproducers with the bias on the base electrodes of the transistors varied by the distribution control signal, applied via transistor 112, to differentially vary the gains of transistors 126 and 128 and thus the distribution of signal between the reproducers.
Patent GB-1356719-A (GB)
Title: Fire-operated closure flap
IPC: A62C2/12
Filed: 1972-10-20
Abstract: 1356719 Minimising fires in ventilation ducts TROX GmbH Gebr 20 Oct 1972 [20 Oct 1971] 48321/72 Heading A5A A fire-operated flap 3 rotatable about a horizontal axis at spindle 4 to close ventilation duct 1 is normally held open against the action of a spring by a retaining device comprising means 5 directly releasable by a temperature rise in the duct, and means 6 indirectly releasable by a signal from outside the duct, and comprising a fusible solder joint releasable by a heating system responsive to the external signal. As shown, indirect release means 6 comprises hollow cylinder 7 enclosing heating cartridge 8. The upper part of cylinder 7 is formed as a plate-like enlargement 13 with outer rim 13a, and a companion element 14 with a mating rim 14a is attached thereto by fusible solder 15. Wires 10 connect cartridge 8 with an electrical switch device controlled by a photoelectric smoke detection cell. Element 14 is connected at lug 16 by bolt 20 to direct release means 5 which comprises metal strips 17, 18 attached at the area of overlap 19 by solder, the free end of 18 being secured to flap 3. Thus solder joint 13, 14, 15 is tensionally stressed, while joint 17, 18, 19 is under shear and hence yields at a lower temperature. Alternatively means 6 may be used alone for both direct and indirect release.
Patent GB-1209928-A (GB)
Title: Improvements in and relating to apparatus for handling hot gases
IPC: F16L59/08
Filed: 1967-10-25
Abstract: 1,209,928. Insulated manifold. FRIEDRICH UHDE G.m.b.H. 25 Oct., 1967 [25 Oct., 1966], No. 48492/67. Heading BlF. An internally insulated manifold I through which hot gas flows to fractionating tubes via flanged pipes 2 is surrounded by a wall 4, the space between manifold 1 and wall 4 being divided into separate chambers by sealing strips 6, each of which chambers is provided with a thermocouple to measure the temperature of the air in the chambers. When the air in a particular chamber becomes too hot, e.g. due to damage of insulation 3, the relevant vent 11 may be opened to cause a draught to flow through the chamber.