baber/WOPTO huggingface dataset:
Patent GB-1486284-A (GB)
Title: Suction cleaning appliances having blower-conversion valves
IPC: A47L9/00
Filed: 1974-09-16
Abstract: 1486284 Suction cleaners HOOVER Ltd 16 Sept 1974 [17 Sept 1973] 40256/74 Heading A4F [Also in Division F2] A suction cleaner 10 e.g. of the canister-type having a motor-fan unit 20-26 is provided with a valve 70 in a passage 58 through which air is discharged from the motor-fan unit, the valve comprising two relatively movable, preferably relatively rotatable, members 72, 83 each having a projecting wall 72, 74 which is undulating when viewed in plan, Fig. 5, the relatively movable members having a first relative position in which the walls 72, 74 align and abut one another so that air is diverted to a blower connection 114, and a second relative position in which the walls 72, 74 are not aligned and so allow air to be discharged to atmosphere through opening 34. As shown, the wall 72 is formed integrally with a housing member 12, and the member 83 is annular and is centered for rotation by an annular rib and groove 84, 86. Movement of a manually-operable lever 106 moves the member 83 against the bias of a spring 100 from the second position to the first position where it may be kept by engagement of a hose 126 with a hose coupler 110 aligned with blower connection 114. The member 83 has ledges 122, 124 which limit its rotation by engaging stops 116, 118. In the second position the blower connection 114 is closed by a flat part 115 of the valve-member 83. The motor-fan unit 20-26 may be mounted on resilient rings 62, 64 as claimed in Specification No. 1486014.
Patent GB-1234979-A (GB)
Title: Improvements in or relating to floor and carpet cleaners
Inventor: BURTON COLIN ALFRED
IPC: A47L11/20
Filed: 1968-08-23
Abstract: 1,234,979. Floor cleaning machines. CIMEX Ltd. 24 Nov., 1969 [23 Aug., 1968], No. 40511/68. Heading A4F. A floor and carpet cleaner capable of sweeping and polishing floors or sweeping and shampooing carpets comprises two rotatable roller brushes 10, 11 motor driven in such manner that for sweeping the brush 10 rotates counterclockwise and the brush 11 clockwise, whilst for shampooing the rotation of the two brushes is reversed, a motor driven fan 34, a dust receiving compartment 12, and valve means 17, 35 for selectively connecting the fan inlet to the compartment 12 or to a clean air inlet 35A, and the fan outlet to a dust bag 13 or to a compartment 16 containing shampoo liquid. Specification 877,778 is referred to.
Patent GB-1169479-A (GB)
Title: A Hydraulic Clutch System Incorporating a Clutch Wear Warning Device.
Inventor: BUCHANAN RICHARD G
IPC: F16D25/08
Filed: 1968-08-26
Abstract: 1,169,479. Clutch control. TEL-LIFE CORP. 26 Aug., 1968, No. 40727/68. Heading F2L. In a hydraulically operated clutch the slave cylinder incorporates electrical means for detecting and signalling an abnormal force on the slave piston due to excessive wear or misadjustment of the clutch. As shown the slave piston 36 is connected to the release collar 22 by an adjustable rod 38 and link 40, the latter of which is loaded by a spring 44. The electrical detector consists of a metallic spring 51 in an insulating sleeve 49 carried by a plug 46 screwed into the end of the slave cylinder 34, the end of spring 51 normally being separated from a metallic cap 53 on the end of piston 36 by a second spring 54. The spring loadings are so arranged that in the event of abnormal force being applied to members 38, 40 piston 36 is forced towards the end of cylinder 34 causing cap 53 to move into contact with the end of spring 51 to operate a signal lamp 56.
Patent GB-893458-A (GB)
Title: Improvements in arresting gear for aircraft
IPC: B64F1/02
Filed: 1960-11-28
Abstract: 893,458. Aircraft arresting gear. FONDEN, P. B., and WALANDER, K. O. T. Nov.28, 1960, No. 40818/60. Class 4. A device for use in elevating and lowering wires, incorporated in arresting gear for aircraft, and comprising two horizontally extending wires 2 and 3, the upper one being suspended between masts, and wires 2, 3 being interconnected by vertical wires 4, is characterised in that the masts and/or stays attached thereto are pivoted at their foot ends and are adapted during raising and lowering of the masts to be displaced along a plane lying substantially flush with the ground level. In Fig. 1, a stay 6 consisting of a wire or pivoted rod is attached at one end to a plinth 5 and at the other end to the mast 1, having mounted on its foot end a roller 8 slidable along a guide track 7. To collapse mast 1, its foot end is subjected, for instance by means of a wire, not shown, to a force acting in the direction of arrow 9, the mast top then moving along the curve 10. The mast is raised from its collapsed position, Fig. 2, by a force acting on its foot end in the direction of arrow 11. Several other embodiments are described. Two in which only the foot end of the stay is displaced, three in which both the foot end of the stay and that of the mast are displaced, and five in which only the foot end of the mast is displaced, four of which show the stay being arranged to engage with one or more flexing points so as to provide a sufficient working leverage at the start of the erecting operation.
Patent GB-1192589-A (GB)
Title: Improvements in or relating to the manufacture of Fluid-Filled Electric Cables
Inventor: BARNES ANTHONY JOHN
IPC: H01B13/30
Filed: 1967-09-11
Abstract: 1,192,589. Corrugating; jointing. BRITISH INSULATED CALLENDERS CABLES Ltd. 10 Sept., 1968 [11 Sept., 1967], No. 41375/67. Headings B3E and B3V. [Also in Division H1] In the impregnation and sheathing of an oilfilled electric cable (see Division H1) the extruded sheath 8 is deformed inwardly about an elastomeric material 2 by a swaging tool, Fig. 5, in a series of circular depressions to ensure a vacuum-tight seal between the sheath and material. The swaging tool 19 comprises flexible chains 21 carrying rollers 23 which can be tightened around the cable sheath by a bolt 22.
Patent GB-1429115-A (GB)
Title: Motor drive with unidirectional braking
IPC: F16D67/02
Filed: 1974-09-24
Abstract: 1429115 Driving arrangements for dynamoelectric machines SUPERIOR ELECTRIC CO 24 Sept 1974 [24 Sept 1973] 41487/74 Heading H2A An electric drive system for a load 14 exerting a unidirectional force comprises a reversible motor 11 and a brake 16 coupled together through a one-way cluch 27, the clutch rendering the motor free of the brake for movement of the load against the load force and interconnecting the motor and brake for movement in the direction of the load force. The brake is a slipping friction brake exerting a torque greater than the load but less than the combined load and motor torque, so that the brake holds the load stationary when the motor is de-energized. The brake force is set by springs 23. The clutch comprises rollers 26 engaging the inner periphery of a hub 21 fixed to the motor shaft. The drive system is suitable for operating lifts.
Patent GB-943536-A (GB)
Title: Process for the production of methacrylic acid derivatives
IPC: C07C233/09
Filed: 1959-12-08
Abstract: Methacrylic acid amide sulphate is obtained by reacting acetone cyanohydrin with sulphuric acid using equimolecular quantities of acetone cyanohydrin and concentrated sulphuric acid (as defined below) or an excess of concentrated sulphuric acid while heating the reaction mixture to a temperature of from 80 to 140 DEG C., quickly cooling the reaction mixture to below 60 DEG C., immediately adding a further quantity of acetone cyanohydrin and/or concentrated sulphuric acid to the mixture at below 60 DEG C. such that the overall molecular ratio of acetone cyanohydrin to sulphuric acid in the final mixture is from 1:1 to 1:1.5 followed by the further heating of the resulting mixture to from 80 to 140 DEG C. and finally cooling the mixture.  The concentrated sulphuric acid used is defined as 100% sulphuric acid.  The acetone cyanohydrin and/or the concentrated sulphuric acid can be added to the quenched or chilled mixture either separately or in the form of a prepared liquid mixture and this mixture can be added all at once or in two or more portions.  The process can be carried out continuously, e.g. by adding the acetone cyanohydrin and/or the sulphuric acid continuously to a mixture of acetone cyanohydrin and excess sulphuric acid which has been heated to from 80 to 140 DEG C., preferably 100 DEG  to 110 DEG C., and then quickly cooled to below 60 DEG C. The continuous process can be carried out on the principle of a heating pump, if necessary with the assistance of a delivery pump and suitable apparatus is illustrated in a drawing (not shown) The product may be reacted with an alcohol, ammonia, or water to obtain a methacrylate, methoacrylic acid amide or free methacrylic acid respectively.
Patent GB-1441757-A (GB)
Title: Gratings
IPC: E04C2/42
Filed: 1973-09-05
Abstract: 1441757 Swimming pools E ARENS 5 Sept 1973 [12 Sept 1972] 41751/73 Heading A4N [Also in Division F4]  A grating suitable for covering an overflow receptacle or a heating channel in a swimming pool, comprises at least two spaced apart carriers 6, 7 Fig. 1, adapted for mounting in the receptacle or in the mouth of the channel and a plurality of rigid elongate grating bars 5 arranged in parallel spaced apart relation transverse to the carriers. The carriers include carrier bars 6 and linking pieces 7, the bars 5 being anchored in the linking pieces 7. Each bar 5 includes a foot portion 8, Fig. 3, and an inclined portion 9. The foot portion 8 includes serrations 11 on the lateral surfaces thereof which engage corresponding serrated walls 12 in sockets 13 in the linking pieces 7. The inclined portion 9 may have a nose portion 10, Fig. 3, or may have an upwardly-directed wedge-shaped portion, Fig. 6 (not shown) or a portion of similar width to the foot portion, Fig. 7, (not shown).
Patent GB-880437-A (GB)
Title: Improvements in or relating to electrical transducers
IPC: G01D5/22
Filed: 1958-12-24
Abstract: 880,437. Transducers. FAIRHURST, J. Dec. 24, 1959 [Dec. 24, 1958], No. 41766/58. Class 40 (1). A transducer comprises two oppositely connected primary coils and one secondary coil all mounted coaxially on a magnetic core, the secondary being axially movable by external means, the distance between the primaries being greater by at least half the axial length of the secondary than twice the range of movement of the secondary, and at least one of the primaries being axially adjustable to make the secondary output zero at the magnetic centre of the assembly. In Fig. 1 a magnetic core 1 carries two primary coils 2 attached via a bracket 12 to a fixed structure 5 and a secondary coil 3 movable axially by displacement of a member 4. The upper primary and the secondary are adjustable by means of screws 13 and 7 respectively. In a modification (Fig. 2, not shown) both primaries are rigidly attached to the bracket 12 and the latter is axially adjustable relative to the base 5. In this case balance is obtained by moving the core relative to the three coils. If the member 4 is arranged to be pivoted about a fixed point the core 1 is made arcuate to correspond. In a measuring circuit (Fig. 3) the primaries 2 are connected in parallel in opposition (or in series opposition, Fig. 4, not shown) and the secondary output is rectified at 23, smoothed by a capacitor 29 and applied to a meter 22 and recorder 21. Rectifiers 24 protect the bridge when the circuit is open. The primary coils may incorporate D.C. windings to modify the mutual inductance with the secondary. According to the Provisional Specification the transducer can be used to indicate the load on an automatic weighing machine such as that of Specification 841,584, the secondary coil being attached to the end of the beam remote from the load-support and the primaries being adjustably mounted on a rigid yoke. The radial clearance necessary for movement of the beam can be reduced by mounting the secondary coil on a parallel-motion linkage to which the beam is indirectly attached. Movement of the secondary coil is preferably damped by an oil dash-pot. It is also stated that (a) one of the primary coils may be movable instead of the secondary; (b) the core may move, either alone or with the movable coil; and (c) one of the coils may be tapped to extend the range of the indicator.
Patent GB-1533518-A (GB)
Title: Renitrogenation of basic-oxygen steels during decarburization
IPC: C21C5/32
Filed: 1977-10-07
Abstract: 1533518 Nitrogenation of steel during a BOF process UNION CARBIDE CORP and NATIONAL STEEL CORP 7 Oct 1977 [11 April 1977]  41774/77 Heading C7D During the latter stages of decarburizing a ferrous melt by O 2  blown from above, a nitrogen-rich gas is simultaneously introduced under conditions to produce an intensive interaction of the N2 and melt, the melt being blown to Mn # 0À1% and the N2 partial pressure being maintained at least equal to that calculated to be in equilibrium with the aimed-for N 2  content (# 0À01%) of the melt at 1600C. Air, N 2  or cracked NH 3  may be introduced via the same or a different lance to the O 2 . Intensive interaction may be achieved by higher gas-pressure and/or velocity and/or a lower lance position than used for normal oxygen blowing.
Patent GB-1180639-A (GB)
Title: Fail Safe Computer
IPC: G06F11/16
Filed: 1967-09-13
Abstract: 1,180,639. Computer control of route setting. NIPPON KOKUYU TETSUDO. 13 Sept., 1967 [13 Sept., 1966], No. 41835/67. Heading B7N. In an electronic computer for programme control, e.g. for controlling a railway signalling interlocking or route setting installation, the same computer operations are carried out by two systems, corresponding parts of which are checked to ensure that their signals are coincident and the parts of one system are arranged to provide "O" on failure and the parts of the other "I" on failure whereby the coincidence determining means can detect a failure in one or both systems and ensure that the control fails safe. Signals from parts 1, la of one system are compared in circuits 3, 3 a  with signals from corresponding parts 2, 2a of the second system. Absence of coincidence in one of the units 3, 3a &c. is detected by unit 4 which supplies an output to suppress the operation of the programme counters 5, 6 of each system and also supplies a signal to the output registers 7, 8 of both systems to prevent the issue of unsafe signals, e.g. proceed signals in a railway signalling installation.'
Patent GB-1056310-A (GB)
Title: Process and apparatus for producing a complete line consisting of one or more lines of type
IPC: B41B11/72
Filed: 1964-10-14
Abstract: 1,056,310. Printing-surfaces. LINOTYPE G.m.b.H. Oct. 14, 1964, No. 41907/64. Heading B6C. Two cast type slugs having the type matter quadded left and right respectively are placed together end to end with the type matter adjoining adjusted lengthwise so as to bring the centre of the combined type matter into alignment with the mid-point between two circular saws adjusted to be spaced apart the distance of a required line, and brought up against the saws to sever the blank ends of the lines.
Patent GB-1094236-A (GB)
Title: Compositions resistant to electrostatic charge
IPC: C08K5/29
Filed: 1965-10-05
Abstract: Compositions comprise macromolecular organic compounds and as antistatic agent one or more Schiff's bases of formula R1-CH=N-R2 where R1 is C2- 22 alkyl and R2 is C10- 22 alkyl. Specified macromolecular compounds are polymers of butadiene, vinyl acetate, vinyl cyclohexane, styrene, 4-phenyl-butene-1, ethylene, propylene, butene-1, pentene-1, 4-methyl pentene-1, hexene-1, 5,5-dimethyl hexene-1, octadecene-1, acrylic and methacrylic esters, acrylonitrile, vinyl chloride and vinyl carbozole; polyesters; polyvinyl acetals; polyoxymethylenes; polycarbonates; polyamides; polyurethanes; and cellulose derivatives.  The Schiff's base may be derived from propionic, isobutyric, n-valeryl, capryl, lauryl or stearyl aldehyde and lauryl, palmityl or stearyl amine.  The compositions may be moulded to form shaped articles.  In examples isobutyric aldehyde/stearyl amine condensates are added to (1) polyethylene and (6) polyvinyl acetate; n-valeric aldehyde/stearylamine condensate is added to (2) polypropylene; propionic aldehyde/lauryl-amino condensate is added to (3) polypropylene; lauryl aldehyde/laurylamine condensate is added to (4) a butadiene/styrene copolymer; n-butyric aldehyde/laurylamine condensate is added to (5) polyethylene; and stearic aldehyde/stearyl amine condensate is added to (7) a styrene/acrylonitrile copolymer.
Patent GB-1024017-A (GB)
Title: Containers of thermoplastic materials
IPC: B65D43/02
Filed: 1962-11-08
Abstract: 1,024,017. Opening containers. FARBWERKE HOECHST A.G. Nov. 8, 1962 [Nov. 10, 1961], No. 42282/62. Heading B8D. A container 1 of thermoplastic material has a tear strip 3 of metal which is inserted in the mould before formation of the container in such a way that the strip lies around, and in the same plane as the upper surface of, the container rim except that at the point where one end 7 emerges, it is depressed, thereby avoiding interference with a weld 6 between a flange on the rim and a container lid 4. The container is injection moulded and may be of polystyrene, P.V.C., copolymer of vinyl chloride and polyolefines. The metal strip may be of copper, brass, steel or tinned iron. The containers may be of circular, oval or square cross-section.
Patent GB-1059504-A (GB)
Title: An ultra-violet light unit for use in a system for detecting stolen bank savings books and the like
Inventor: WEITZEL STANLEY LIONEL
IPC: F21S6/00
Filed: 1962-11-09
Abstract: 1,059,504. Ultra-violet lamps. LINOLITE Ltd. Nov. 11, 1963 [Nov. 9, 1962], No. 42466/62. Heading F4R. An ultra-violet light unit comprises a source, e.g. a tube 10, of ultra-violet light located in a casing 2 having an opening 8 for the light rays in a portion of one end wall which slopes back under the top wall of the casing. The unit is designed to stand on feet 18 on a bank counter and is used to illuminate a normally invisible signature recorded in a savings book, unbeknown to the holder, in zinc sulphide or similar material. Comparison of this signature with a normal visible signature enables stolen books to be detected.
Patent GB-1589691-A (GB)
Title: Signal receiving system
IPC: H04R1/20
Filed: 1977-10-12
Abstract: Receiving system with a directional characteristic, for receiving acoustic or electromagnetic waves using several receiving elements. The receiving elements supply the output signals, which vary with time, to a signal processing device, which combines the output signals so that a desired directional characteristic emerges. The signal processing device (15) includes a subtraction stage to generate a difference signal from the output signals of two receiving elements, and a following integration stage to integrate the difference signal. In this way, unwanted noise is suppressed as sound films are recorded. <IMAGE>
Patent GB-998061-A (GB)
Title: Traverse device
IPC: B65H54/28
Filed: 1962-11-13
Abstract: 998,061. Yarn traversing mechanism. MONSANTO CO. Nov. 13, 1962 [Nov. 29,1961], No. 42896/62. Heading D1J. A yarn traversing device comprises two endless belts 18 each rotating in the same direction and arranged relatively to each other as shown. As the belts rotate, fingers 19 thereon co-operate with each other to establish a zig-zag arrangement of the yarn 2 before depositing it on the bobbin 6. To prevent ribboning the finger 19 may be unequally spaced. The package 6 is driven by a drive roll 7 and the belts 18 are interconnected by a flexible joint 15. The yarn 2 is spun from a spinneret 3 and is wound around two sets of draw rolls 4 and separator rolls 5 before being delivered to the traverse device.
Patent GB-1078761-A (GB)
Title: Improvements in or relating to meat-stuffing machines
Inventor: BURRETT KENNETH FREDERICK
IPC: A22C7/00
Filed: 1962-11-15
Abstract: 1,078,761. Meat-stuffing machine. UNITED GAS INDUSTRIES Ltd. Feb. 13, 1964 [Nov. 15, 1962], No. 43235/62. Addition to 909778. Heading A2U. In a stuffing machine for preparing boneless meat masses and charging them into metal cages or cases for after treatment for marketing, comprising a trough or mould and complementary cover plate for imparting to the mass the desired cross-sectional shape, an end closure for the trough and cover plate, a nozzle for substitution for the end closure, and a pressing plate or plunger head within the trough and movable under force at least through the length of the trough and the nozzle to deliver the meat mass into the metal cage or case, the meal cage or case is adapted to be constrained in the operative position in relation to the nozzle by coupling or connecting means provided in part upon the metal case or cage and in part upon the nozzle or on an element associated with the nozzle. Such coupling means are suitably slide ways with engaging projections, or pins or projections with corresponding loops or flaps. Fig. 1 shows a general view of an apparatus according to the invention and Fig. 2 shows a suitable construction of the metal case and nozzle. Thus the mould 4 has cover plate 7, and is shown with metal cage 8, having removable end plate 26, fitted on the nozzle to receive the meat mass. In Fig. 2 a nozzle 33 is fitted on a plate 34, and is provided with slide ways 31 to co-operate with flange 30 on metal case 28. Removable end plate 26 engages flanges 25, and supports the compression assembly 29 within the case. The meat mass is forced into the case by a plunger acting through coupling means 40 on a plate 35, which plate enters the metal case 28 and is locked therein by a spring catch engaging in the slots 42 in the sides 36 of the plate, thereby enabling compression assembly 23 to maintain pressure on the meat mass in the case during after treatment such as cooking or smoking. The metal case or cage may be lined with a flexible fibrous or plastic casing one end of which is retained by the means for coupling the case or cage with the nozzle assembly. The metal case or cage may be provided with a detachable or hinged wall, or may be formed in two substantially similar parts that are hinged or separable and meet upon a diagonal plane.
Patent GB-1120192-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/02
Filed: 1965-10-12
Abstract: 1,120,192. Sewing machines. G. M. PFAFF A.G. 12 Oct., 1965 [31 Oct., 1964], No 43308/65. Heading DIG. A sewing machine comprises a main feeding dog I, an auxiliary dog 2 and a feeding foot 79, the main dog having a stroke greater than the other feeds, and the foot having a stroke greater than the auxiliary dog, the upper fabric layer is thereby fed to the needle at a faster rate than the lower to compensate for slip between the layers at the main feed. The strokes of the dogs are controlled by a cam shaft (10 Fig. 1 not shown) bearing eccentrics (11, 12). Eccentric strap (13) is journalled on a fin (19) and is connected by linkage (21-23) to feed bar rockshaft (15). Fin (19) is also connected by links (20, 25) and fin (24) to adjusting shaft (26). Pins (22, 24) are normally aligned. Rotation of the adjusting shaft by means of the stitch control cam (57) displaces one pin (24) so that the rotating cam shaft oscillates the rockshaft. A rockshaft (16) for dog 2 is similarly oscillated by eccentric strap (14) and an adjusting shaft (34). The adjusting shafts (26, 34) are adjustably connected by a screw (40) pivotally mounted between forks (35, 36) connected to the shafts. Adjustment of the screw causes relative displacement of shaft (34) and thereby varies the stroke of the lower dog 2 relative to dog 1. The foot 79 is reciprocated by an upper rockshaft (74) which is oscillated by the upper arm shaft (69). Rock shaft (74) is connected via linkage (61, 62) to an adjusting screw (41) so that the feeding stroke of the foot can be altered.