baber/WOPTO huggingface dataset:
Patent GB-1447894-A (GB)
Title: Face-type seals
IPC: F16J15/34
Filed: 1973-11-22
Abstract: 1447894 Face-seal assembly CATERPILLAR TRACTOR CO 22 Nov 1973 [29 Nov 1972] 54180/73 Heading F2B A sealing assembly, e.g. for a track roller, comprises a seal ring 13A, having a radially projecting flange for engagement with a corresponding ring 15A and an axially extending body with an external ramp 33, a retainer 19A surrounding the seal ring and having an internal ramp 31, and a resilient torus 17A compressed between the ramps 31 and 33. The torus is solid and has a non-circular cross-section of such form that it first produces a rapid increase in the face load on the seal ring during axial movement of the retainer towards the ring on assembly of the sealing assembly, i.e. as the parts move from the Fig. 2 to the Fig. 4 position, and produces a substantially constant face load during axial movement of the retainer relative to the seal ring when the assembly is in use, i.e. in the Fig. 4 position. As described the ramps 31, 33 have the same inclination and terminate adjacent flats 35, 37 respectively. The torus 17A, Fig. 5, is symmetrical about axes HA and VA and each quadrant Q1-Q4 includes flats 41, 43 joined by a shoulder 45 for engagement with the flats 35, 37 in the initial assembly position, Fig. 2, and an arcuate portion 47 having its centre of curvature in the diametrically opposite quadrant.
Patent GB-1256109-A (GB)
Title: Improved vehicle cleaning appliance
Inventor: MAXWELL EUSTACE
IPC: B60S3/06
Filed: 1969-11-05
Abstract: 1,256,109. Vehicle washing apparatus. A.V.W. EQUIPMENT Ltd. 4 Nov., 1970 [5 Nov., 1969], No. 54194/69. Heading B7J. In a vehicle cleaning appliance comprising a frame movable by a motor past a stationary vehicle, a sensing device is provided which constrols the motor so as to reverse the direction of movement of the frame when the entire length of the vehicle has been traversed, the sensing device, which is preferably a microswitch, being associated with at least one of a pair of opposed side cleaning members supported in the frame and each adapted to move outwardly from an inner position to clean a side of the vehicle during movement of the frame relative to the vehicle, the sensing device being actuated by the return of at least one of the side cleaning members to its inner position; a top cleaning member is also provided in the frame, mounted to be movable upwardly and downwardly to clean the upper and end surfaces of the vehicle. An "override" device may be provided, for example a timing switch, which renders the sensing device inoperative for an initial period of the cleaning operation.
Patent GB-1484487-A (GB)
Title: Detergents
IPC: C11D3/02
Filed: 1974-12-17
Abstract: 1484487 Detergent composition AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 17 Dec 1974 [21 Dec 1973] 54411/74 Heading C5D A detergent composition comprises soap or a granular synthetic detergent and a superoxide forming system comprising at least one watersoluble salt or divalent iron, divalent cobalt or divalent nickel, associated with a water-soluble organic liquid which is a sequestering agent for the divalent metal, is a hydrogen donor and has at least two sites for fixing to the metal when in water so as to form an unstable complex which forms superoxide ions continuously by reduction of oxygen dissolved in the water. The ligand may have one or more -NH 2  and/or -COOH groups, and may be a polypeptide, an oligopeptide, fumaric acid and derivatives thereof such as dihydroxy fumaric acid and esters, amides and salts thereof. The ligand may be tetraglycine. The divalent metal salt may be nickel sulphate or cobalt chloride. The superoxide ions may replace those usually provided by perborates, percarbonates or per acids. The compositions may be used for laundering or dish washing.
Patent GB-1245506-A (GB)
Title: Magnetrons
Inventor: HILL DONALD GOULD
IPC: H01J23/22
Filed: 1969-11-11
Abstract: 1,245,506. Magnetrons. LITTON INDUSTRIES Inc. 11 Nov., 1969 [6 Jan., 1969], No. 55201/69. Heading H1D. [Also in Division B3] In a centre-strapped multi-cavity magnetron, the straps are in the form of thin discs 15 and 16, and are each received in radially directed openings formed in the inner ends of the anode vanes, the openings for a given strap in successive vanes being alternately of a height substantially equal to that of the strap, to form contacting connections, as shown at 24 in Fig. 2, and of the form shown for the lower strap in Fig. 2, in which a portion 28 of a height substantially equal to that of the strap is joined to a radially outwardly disposed enlarged portion 22 of a size which ensures a constant spacing between the strap and the vane around its whole periphery. Preferably, the straps are provided with both recesses 18 at the positions of the vanes to which it is connected, to permit its engagement therewith prior to brazing, and with inwardly directed projections 17 which just fill the whole of the slot 24. The method of assembling the vane-strap structure together with the anode cylinder 1, using a jig, is described; as an alternative to normal brazing, the straps may be coated over the appropriate areas with successive thin coatings of gold and copper, and the whole assembly heated to bond the components together.
Patent GB-1211844-A (GB)
Title: Improvements in and relating to transfers
Inventor: NEALE KENNETH WILLIAM JAMES
IPC: B41M3/12
Filed: 1966-12-09
Abstract: 1,211,844. Transfers. JOHNSON, MATTHEY & CO. Ltd. 7 Dec., 1967 [9 Dec., 1966], No. 55251/66. Heading B6C.  A transfer suitable for use in transferring designs in enamel or precious metal for subsequent firing comprises a thermoplastic covercoat of a wax-acrylic resin mixture consisting of equal parts by weight of polybutylmethacrylate and cetyl alcohol. The covercoat is applied to the transfer through a heated stainless steel mesh at a temperature not exceeding 250‹ C., and preferably at about 80‹ C., to give a rapidhardening strong flexible covercoat. The thermoplastic material is advantageously heated before being passed through the heated mesh.
Patent GB-1375719-A (GB)
IPC: G03G5/07
Filed: 1971-12-01
Abstract: 1375719 Photo-conductive material KALLE AG 1 Dec 1971 [3 Dec 1970] 55758/71 Heading G2C A photo-conductive material comprises one or more aromatic photo-conductors and an electron acceptor other than 2, 4, 7-trinitrofluorenone. The photo-conductor has an ionization potential between 5 and 8 eV and; the electron acceptor has an electron affinity between 0.5 and 1.5 eV and  passes at least one cross-conjugated # - electron system and the electron acceptor is present in the ratio of 0.3 to 1.3 moles per mole of photo-conductor base unit. In the embodiments poly vinyl carbazole or N-vinyl carbazole and electron acceptor are mixed with a polyester and an organic solvent and coated on an evaporated film of aluminium on a polyester support. The electron acceptor is preferably a polynitrated derivative of naphthalene, azlactone, anthraquinone, cyclohexanone or acenephthene but other electron acceptors are specified. The Specification also discloses the use of tetrachlorophthalic anhydride, 1, 3, 6, 8-tetranitrocarbazole,2, 3-dichloronaphthoquinone, 2, 3-dicyanonaphthoquinone and 2-choloro-3-nitro-1,4-naphthoquinone to sensitize N-vinyl-carbazole but these are not as effective.
Patent GB-1155518-A (GB)
Title: Process for Purifying beta-Chloroethane Phosphonic Acid Dichloride
IPC: C07F9/42
Filed: 1967-12-07
Abstract: 1,155,518. Purification of #-chloroethane phosphoric acid dichloride. KNAPSACK A.G. 7 Dec., 1967 [23 Dec., 1966], No. 55763/67. Heading C2C. #-Chloroethane phosphonic acid dichloride, contaminated with #-chloroethane phosphate dichloride, is purified by heating the crude product with a catalytic amount of a hydrogen halide salt of a tertiary aliphatic, aromatic or heterocyclic amine to between 50 and 350 C., thermally splitting the contaminant with the resulting formation of 1,2-dichloroethane, hydrogen chloride, phosphorus oxychloride and meta-phosphoric acid, the split products which are volatile at the splitting temperature being continuously expelled from the mixture, and ultimately subjecting the remaining mixture, consisting of metaphosphoric acid and #-chloroethane phosphonic acid dichloride to distillation, if desired under reduced pressure, to isolate the #-chloroethane phosphonic acid dichloride. Specified catalysts are the hydrogen halide, preferably the hydrochloride, salts of trimethyl, triethyl and triphenyl amines, pyridine, quinoline and phenothiazine.
Patent GB-1193168-A (GB)
Title: Improvements relating to Co-ordinate Inspection Machines
Inventor: OGDEN HARRY
IPC: G01B11/00
Filed: 1967-12-09
Abstract: 1,193,168. Selective signalling. FERRANTI Ltd. 3 Dec., 1968 [9 Dec., 1967], No. 56073/67. Heading G4H. To determine the x, y co-ordinates of the centre of a circular hole or stub on a workpiece, a frame 14 is moved on a gantry (not shown) to the correct position of the centre, and with probe 22 in a datum position (aligned with axis 12 of shaft 11, in the case of a hole), the frame 14 is lowered and probe carriage 21 is released so that it is biased along arm 16 towards the edge of the hole or stub by springs 25, 27. Shaft 11 and arm 16 are rotated by hand to a starting position L or L<SP>1</SP>, Fig. 2, defined by a stop, and the arm 16 is then rotated away from the stop so that probe 22 follows the periphery of the hole or stub. Consequential movement of carriage 21 along arm 16 is detected by optical gratings and photo-detectors 33 producing a pulse on a lead 34 or 35 for each increment of movement. Divider 48 halves the numbers of pulses on leads 34, 35 since the coordinates of the actual centre H of the hole or stub are represented by the equations x = ¢ (OB-OA) and y=¢ (OD-OC). Associated with shaft 11 is a reflective block 42 and photocell array 44 providing signals which control network 47 to feed pulses to the X counter 51 only during movement of the probe round the arc ACB or ADB and to the Y counter 52 only during movement of the probe round the arc CBD or DBC. The signals on channels 45, 46 also effect switch-over of the add and subtract inputs of the counters as becomes necessary when the various co-ordinate axes are crossed. Block 42 is essentially square in plan, its vertical faces evenly illuminating a pair of horizontally-spaced photo-cells when arm 16 is aligned with one of the co-ordinate axes, the phase of the photo-cell outputs indicating the direction of rotation of shaft 11. The upper and lower edges of block 42 are bevelled to selectively illuminate two vertically-spaced photocells to provide a 2-bit signal indicating the identity and sign of the axis being crossed. Network 47 is illustrated in detail in Fig. 6 (not shown). Counters 51 and 52 may have an associated quadrant indicator controlled by sign stages 51<SP>1</SP>, 52<SP>1</SP>. The apparatus may also be used for determining the dimensions of a workpiece.
Patent GB-1167610-A (GB)
Title: A Combination Apparatus Capable of use either as a Hand Truck, Trolley or Step Ladder
Inventor: CHEYNE JOHN WILLIAM
IPC: B62B1/12
Filed: 1967-12-13
Abstract: 1,167,610. Hand trucks. J. W. CHEYNE, L. A. MILNES and E. R. LOCKART. 13 Dec., 1967 [20 Dec., 1966], No. 56753/67. Heading B7B. A hand truck has a main frame 10 with longitudinals held in spaced relation by transverse members 18 and with a forward extension 11. Pivoted at 22 to the main frame is an auxiliary frame 20 movable to the position shown for supporting a flexible bag shown dotted. The brace 23 is pivoted at 24 to the frame 20 to limit the movement of the frame 20 away from the frame 10 and also to serve as a foot when the truck is used as a wheelbarrow, the detachable body of which is supported in the angle of the main frame 10 and extension 11. When the opened truck is inverted it may be used as a pair of steps with a horizontal platform formed by the extension 11.
Patent GB-1445691-A (GB)
Title: Couplings
IPC: F16D1/033
Filed: 1972-12-09
Abstract: 1445691 Shaft couplings ROLLS-ROYCE (1971) Ltd 6 Dec 1973 [9 Dec 1972] 56942/72 Heading F2U In a torque-transmitting coupling for coupling a main shaft of a gas turbine engine to another member, each of the axially-opposed faces 5, 6, of the coupled members 1, 2, has a series of correspondingly opposed recesses 3, 4, the walls of which are convergent from the faces 5, 6, respectively, and each pair of these co-operating recesses jointly accommodate a metallic partspherical coupling element 8, with a bolt 9 passed through both the coupled members 1, 2, and the coupling element 8. The cross-sections of the recesses may have sides of straight, arcuate, elliptical or other convergent shapes, and the recesses may be of conical or spherical form. In one embodiment, Fig. 3, a nut 21 has a sleeve 22 which extends into a counterbore 19 within the coupling element 17, and which may be flared out by an inserted tool, causing coupling element 17 and nut 21 to become captive on one coupled member 11, facilitating assembly when bolt 18 is entered.
Patent GB-1329386-A (GB)
Title: Seals in spool valves
IPC: F16J15/32
Filed: 1971-12-08
Abstract: 1329386 Valves ROSS OPERATING VALVE CO 8 Dec 1971 [28 Dec 1970] 57030/71 Heading F2V A spool valve has sealing elements between the spool 13, Fig. 1, and the valve housing 12. In the embodiment shown, several sealing elements 41 to 44 are fixed relative to housing 12 and each comprises a tongue 53, 64, 74 or 76 sealingly engageable with a land 26, 28, 27 on the spool. Chamfers provided on elements 43, 44 co-operate with chamfers on lands 27, 28 to assist engagement. Cavities 59 on the high pressure side of the tongues receive fluid pressure to assist the sealing action. The elements 41 to 44 may be of p.t.f.e., polypropylene, polyethylene, or polyurethane. The spool carries piston seal 32, 37 located in cylinders 34, 38, the cylinder 34 being connected to the outlet 36 of pilot valve 23. The spool can occupy either one of two positions to control flow between inlet port 15, outlet ports 18, 19 and connecting ports 16, 17. In a modification, Fig. 6 (not shown), the spool can also occupy an intermediate position in which it seals all ports from one another. 0-ring seals 49 between elements 41 to 44 and cylinders 34, 38 may be replaced by resilient ribs (161, 163), Fig. 7 (not shown), integrally formed on the elements and cylinders. The cylinders are of a material similar to that of the elements.
Patent GB-1455275-A (GB)
IPC: H03M7/24
Filed: 1973-12-11
Abstract: 1455275 Floating point conversion SPERRY RAND CORP 11 Dec 1973 [14 Dec 1972] 57371/73 Heading G4A Conversions between decimal byte format and binary floating point format are performed in an arithmetic unit in response to a single conversion instruction and without subsequent reference to main memory. A plurality of branch designating flip-flops are set in turn to select a corresponding sequence of operations forming part of the conversion process, the branches required being selected in sequence in dependence on the initiating instruction, machine conditions and the data undergoing conversion. Constants required in the conversion process are obtained from a look-up table, e.g. a high speed switching network. The function code of the initiating instruction specifies single or double precision format for the input data, the conversion is carried out in double precision format, and, as a final branch operation, if specified by the initiating instruction, the result of the conversion process is compressed to single precision format. The possible sequences of branches and the operations in each branch are described in detail for both types of conversion, Figs. 21-41 and Figs. 42-58 (not shown).
Patent GB-1372649-A (GB)
Title: Connecting arrangement between a hose and a spigot
IPC: F16L33/02
Filed: 1972-12-13
Abstract: 1372649 Pipe couplings H OETIKER 13 Dec 1972 [30 Dec 1971] 57526/72 Heading F2G In connecting a flexible hose to a spigot, by means of a ring 6, the hose is preferably pushed over the spigot until its end abuts shoulder 10 and the ring 6 is placed over its end portion. On retracting the hose, the ring 6 is drawn with it over rib 8, so that it becomes seated, on the thickened section, between ribs 5 and 8. A spacer ring 13 is inserted between the end of the hose and the shoulder 10, thus preventing the hose from sliding inwardly along the spigot, in response to a drop in the line pressure. Alternatively, the connection may be made by sliding the ring relatively to the hose and the spacing ring may be omitted.
Patent GB-1260876-A (GB)
Title: Method of, and apparatus for, making sheets of fibrous material
IPC: B04B11/04
Filed: 1969-11-25
Abstract: 1,260,876. Centrifugal strainer. CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS CARTONS ET CELLULOSES. 25 Nov., 1969 [29 Nov., 1968], No. 57670/69. Heading B1D. [Also in Division D2] Liquid is evacuated from a rotary machine which has a rotor, the rotor having an outer wall, an inner, filtering wall and a substantially vertical axis of rotation, by disposing water between the two walls by centrifugal force, applying paper pulp, and progressively decreasing the centrifugal force to allow drainage of the water under gravity through drainage means in the lower part of the rotor. At high speed, the water is disposed as in Fig. 2a, and then, with slowing, drainage as shown in Figs. 2b and 2c occurs. The means of decreasing centrifugal force may be a friction brake on the drive shaft. The drive shaft is connected to a motor, e.g. by a belt and pulley drive. The outerwall may be cylindrical, and have an apertured base mounted on the drive shaft, annular radially inwardly extending lips 5, and on annular filtering wall 4, which, when in use, may be covered by a resiliently deformable porous member, which may be patterned.
Patent GB-1236577-A (GB)
Title: Corrugated flexible tubing
IPC: B29C48/355
Filed: 1967-11-06
Abstract: 1,236,577. Extruding corrugated tubing. COMPOFLEX CO. Ltd., and P. W. O'BRIEN. 29 Oct., 1968 [6 Nov., 1967; 20 Dec., 1967], Nos. 50382/67 and 57933/67. Heading B5A. [Also in Division F2] A plastics tube transversely corrugated as extruded from die head 10, is subjected to heat treatment during longitudinal compression and subsequent cooling to reduce the pitch of the corrugations. The extrusion and compression need not, as shown, be part of a continuous process. Extruder 10 is provided with an extension mandrel 11 on opposite sides of which are arranged the belts 14, 15 of a caterpillar haul-off 13 and the belts 17, 18 of a similar hauloff 16. The rate of haul-off of caterpillar 13, which is slightly greater than that of extrusion, is about double that of caterpillar 16 with consequent compression of the corrugations of the tube in the region of a heater 19 and a cooling device 20 downstream thereof. The heater may utilize steam or other fluids or micro-wave highfrequency dielectric heating. The preferred material for the tube is polypropylene and the compressed tube may be braided with plastics preferably high density polyethylene or multistrand cotton or covered with an extruded tube of transparent, opaque or coloured plastics. By reference to Specification 1,175,042 (see Division F2) other plastics from which the tube may be made include P.V.C., polyethylene, nylon, derivatives of P.T.F.E., polyvinyl acetate, A.B.S., E.V.A. and polyurethane.
Patent GB-1294126-A (GB)
Title: Apparatus for filing documents
Inventor: GUEST JACK BERNARD
IPC: B42F15/00
Filed: 1970-12-07
Abstract: 1294126 Suspension filing systems J B GUEST and K E J GUEST 1 Jan 1971 [7 Dec 1970] 58077/70 Addition to 1294125 Heading B6E Apparatus for suspension filing of documents as described in the parent Specification is modified in that the tab 19 which is provided with aligned oppositely disposed slots 24, 25 has each of the slots provided at its inner end with a perpendicularly extending recess 26, 27 for engagement over a vertical integral rib 26, 27 of an associated suspension rail 17, 18. Also when inverted the tabs and associated panels 29 can form dividers.
Patent GB-1193120-A (GB)
Title: Radiation Sensitive System
IPC: G01S7/22
Filed: 1967-12-22
Abstract: 1,193,120. Pulse radar; automatic gain control. WESTINGHOUSE ELECTRIC CORP. 22 Dec., 1967 [31 Jan., 1967], No. 58300/67. Headings H4D and H4R. [Also in Division G2] In a pulse radar with a P.P.I. 76, Fig. 1 and simultaneous display of data (e.g. a map and range rings) originating on a transparency 40 or in a storage camera tube, the image pick-up tube 14 is scanned synchronously and in the same manner as the P.P.I., and the output signal from tube 14 is connected in amplitude as a function of the #, # deflexions of the raster scan. Uniform illumination across transparency 40 is afforded by fluorescent lamps 46 and serpentine reflector 44. Gain control 56 allows for the decrease in the number of radial sweep overlaps as # increases, for the response of lens 38, and for variations in angular velocity of scanning. Gain control, Fig. 2.-The input signal is fed to a voltage divider incorporating an impedance, utilizing a field-effect transistor 168, controlled by the output of waveform generator 58 the input to which is a sawtooth voltage applied to diodes 101 to 104 in a circuit having a common point connected to a differential amplifier 132, 134. The output from the latter is power-amplified by transistors 144, 149. The gain of the circuit incorporating transistors 132, 134, 144, 149 may be altered by varying the tap on potentiometer 130.
Patent GB-1161900-A (GB)
Title: Metering Slide Valve with a Hydraulic Remote Control.
IPC: F16K31/122
Filed: 1966-12-30
Abstract: 1,161,900. Fluid pressure control valves. ZAVODY PRUMYSLOVE AUTOMATISACEJINONICE, NARODNI PODNIK. 30 Dec., 1966 [30 Dec., 1965], No. 58321/66. Heading F2V. A service line port 5 is connected to either a fluid pressure inlet 2 or to exhaust 6 by displacement of a landed spool 4, the spool being acted upon at one end by a spring 13 and at the other by fluid pressure derived from the same source. A duct 7, leading from inlet 2, supplies pressure to two channels 7a and 9, the first being controlled by the stem of a piston 8, which stem is recessed as at 10, and the second opening on to the piston head 15. Pressure entering channel 11a, via annular recesses 10, is controlled by a throttling valve 12 which thus determines the relative forces acting on the piston head, piston stem, and the uppermost end of the spool and therefore the disposition of the spool in relation to the valve housing 1. The piston is provided with a square head whose corners are located by four borings 16 which prevent the piston from rotating in its bore. A set screw 14, non-rotatable but longitudinally movable within the piston, allows the distance between the recess 10 and the spool end to be altered.
Patent GB-1456230-A (GB)
Title: Radiological contrast media
IPC: A61K49/04
Filed: 1973-12-17
Abstract: 1456230 Radiological contrast media THANN & MULHOUSE 17 Dec 1973 [19 Dec 1972] 58335/73 Heading A5B [Also in Division Cl] A radiological examination of a patient is carried out by administering to the patient a radiopaque meal and subsequently taking X- radiographs of the patient, in which the meal comprises an aqueous suspension of a barium titanate and/or a barium zirconate. An X-ray contrast medium comprises an aqueous suspension of a barium titanate and/or a barium zirconate also containing a stabilizer such as methyl cellulose, ethyl cellulose, gum arabic, gelatin or agar-agar. The barium titanate is preferably barium monotitanate. The medium may also contain a non-toxic sulphate having a water-solubility greater than that of barium sulphate e.g. sodium, potassium or calcium sulphate.