baber/WOPTO huggingface dataset:
Patent GB-969540-A (GB)
Title: Improvements in or relating to lifting apparatus for use in building construction
IPC: E02B17/08
Filed: 1961-11-30
Abstract: 969,540. Lifting jacks. T. N. LJUNG. Nov. 30, 1961 [Dec. 2, 1960; Nov. 11, 1961], No. 42934/61. Heading B8J. During the construction of a building, floors are raised by a jacking system including a number of jacks, each of which comprises crossheads 3, 5 secured to the cylinder 2 and pistonrod 4 respectively of an hydraulic ram supported on a column 1 of the building, and a pair of rods 8 which support the floor 10 and which may both be supported alternately by the crossheads 3, 5. Each cross-head, Fig. 3, comprises a pair of jaws 11 which are movable between guide surfaces 15 and which are urged by a spring 24, engaged between one jaw and a yoke 19 secured to the other jaw, into engagement with the rod 8. Each rod 8 is formed with ribs, shaped as shown, and the gripping surface of each jaw is shaped correspondingly so that the cross-head can only move down with respect to the rod 8. To lower the rod 8 with respect to the cross-head, a cam 27 with a hand lever 25 is provided between yokes 20, 23 which are secured to the jaws so that on rotation of the cam about an axis 26 the jaws are moved apart against the action of spring 24. In operation, on extension of the ram 2, 4, the upper crosshead 5 is moved upwardly and raises the rods 8 which ratchet through the jaws of the lower cross-head 3. The rods are then supported on the lower cross-head and hydraulic fluid is exhausted from the cylinder 2 so that the upper cross-head 5 descends under the action of its own weight and springs 7 and the cycle is then repeated. In a modification, Figs. 4-6 (not shown), the rods 8 have a single helicoidal rib and gripper jaws are provided on the upper cross-head only. The lower cross-head is provided with rotatable nuts which engage the rods and which are rotated as the upper cross-head is raised by an endless chain and a chain wheel secured to the driven part of a free-wheel clutch on the lower cross-head. The driving part of the clutch is secured to a high-pitch screw which engages a nut secured to the upper cross-head. In operation, during upward movement of the upper cross-head, the nuts are turned on the rods. The free-wheel clutch may be reversed to allow the rods to be lowered. In a further modification (not shown), electric switches may be associated with the gripper jaws and incorporated in hydraulic or electric circuit for controlling the synchronization of a number of jacks.
Patent GB-875733-A (GB)
Title: Suspended roofs for use in furnaces
IPC: F23M5/06
Filed: 1959-12-17
Abstract: 875,733. Furnace roofs. VEITSCHER MAGNESITWERKE A.G. Dec. 17, 1959 [Dec. 22, 1958], No. 42985/59. Class 51 (2). A metallurgical furnace roof has rib bricks 1 suspended from girders 5 and panel bricks 6 secured in pairs by hangers 7 and pins 8 engaging U-shaped suspension units comprising members 9 seated on said girders 5 and connected by sleeves 10. The hangers 7 engage recesses 13 formed in the bricks so that when the roof is warm said hangers burn through and the suspension units may be removed and replaced by blocks 11 partially supported as shown by the rib bricks. The replacement blocks 11 may be suspended from the girders 5, Fig. 2 (not shown). The brick hangers may be supported from horizontal bars resting on wedge-shaped members on the girders S, Fig. 3 (not shown). The hangers 7 may also have hook formations engaging the pins 8.
Patent GB-430081-A (GB)
Abstract: 430,081. Delivering strip material from boxes. FISHBURN, J. E., 39, St. James's Street, Pall Mall, London, and WEBB, C. F., 33, Kenton Park Avenue, Kenton Park, Middlesex. Dec. 7, 1933, No. 34490. [Class 18] [See also Group XIX] A machine for issuing strip material in predetermined lengths and for counting the number issued comprises a box-like member 20 which when pressed by hand into the casing 1 discloses at a slot 49 the free end of the strip, one set length of which may then be withdrawn by thumb and finger and severed against the sharp edges of the slot 49. Guides 8 separate adjacent piles or rolls of the strip 9 in the container 1, and to facilitate the threading of the strip 9 round a roller 12, the latter is turned, together with a lever 18, about a pivot 19 by pushing a lever 16, so that the roller moves into an accessible position. The strip has perforations engaging pins 28 on a wheel 27, which is set free to rotate by the inward movement of the slide 20 withdrawing a hinged abutment 39 from the path of a pin 28. As the strip is withdrawn, a spring restores the slide 20, and the abutment encounters the next pin 28 on the wheel 27, limiting its rotation to one strip length. A finger-operated lever 50 lifts a plate which normally obturates the strip passage 49. A counter showing the total number of tickets issued is operated by a train of gears each time a length is withdrawn.
Patent GB-430852-A (GB)
Abstract: 430,852. Time checks for billiards &c. BLACKBURN, J., 4, Bethel Road, Little Harwood, Blackburn. April 25, 1934, No. 12398. [Class 132 (ii)] A time check for billiards and other games comprises a clock provided with stopping means that is inoperative while the clock is suspended in the air but becomes effective with or without the aid of an additional weight when the clock rests on its base. As shown, the device comprises a casing C containing two clocks A, B for snooker and billiards, respectively, and a dial D to indicate the time at which play was started. When the table is not in use, the device rests on the surface of the table to act as an obstruction. In this position, two pivoted flaps a, b are maintained in contact with the base of the device and condition locking means to stop the clocks. Before play is begun, the attendant raises the device from the table by pulling down a counterweight j<1>, and releases one of the flaps from its snap fastener e to permit the associated clock to start. Unauthorised tampering with the operative flap is prevented by a gravity pawl H that takes over the flap while the device is suspended. In a modification, a spring is interposed between the container and a base plate, such spring being overcome when the balls are placed in pockets on the container, the resultant movement of the base relative to the container serving to stop the clock.
Patent GB-1094237-A (GB)
Title: Magnesium-base alloys containing rare earth metals
Inventor: FOERSTER GEORGE STEPHEN
IPC: C22C23/06
Filed: 1965-10-11
Abstract: A magnesium base alloy comprises .Rare Earth Metals.0.5 - 2.0% .Al.0.05 - 0.8% the balance, apart from impurities, being magnesium. The aluminium content must be no greater than the rare earth metal content.  The alloy may be extruded from a ram extrusion machine at 10-90 feet per minute at a temperature of 399 DEG  C. followed by ageing at 177 DEG -204.5 DEG  C.
Patent GB-1066715-A (GB)
Title: Copolymers of n-substituted maleimides
Inventor: BARR DENNIS ARTHUR
IPC: C08F22/36
Filed: 1962-11-16
Abstract: A copolymer consists of (i) at least one a -olefine and (ii) N-phenyl maleimide and/or its derivatives in which at least one of the aromatically bound hydrogen atoms has been substituted by a halogen atom or nitro, nitrile or C1- 4 alkyl or alkoxy groups and optionally (iii) at least one other copolymerizable monomer, and in which the total molar amount of (iii) present is less than that of (i) and the total molar amount of (i) is not greater than that of (ii). Monomer (i) may be isobutene, propylene, 4-methyl pentene-1, butene-1, and/or butadiene. Monomer (ii) may be N-o-tolyl or N-o-chlorophenyl maleimides.  Monomer (iii) may be styrene, ethyl acrylate or chloroprene.  The copolymers may be produced by polymerizing the monomers in the presence of a free-radical catalyst, e.g. azo-diisobutyronitrile, acetyl cyclohexyl sulphonyl peroxide, boron triethyl or potassium persulphate, in a solvent, e.g. benzene, methanol, or in aqueous medium, e.g. in the presence of sodium lauryl sulphate.
Patent GB-921211-A (GB)
Title: Improvements in loading control mechanisms for cyclical centrifugal installations
IPC: B04B11/04
Filed: 1961-12-05
Abstract: 921,211. Centrifugal strainer separaters. WESTERN STATES MACHINE CO. Dec. 5, 1961, No. 43563/61. Class 46. [Also in Group XXIX]. A loading control mechanism for a cyclical centrifugal installation having a rotary basket 11 comprises a loading gate 15 for delivering charge material from a tank 13 into the basket a gate operating air cylinder motor 20 energizable in opposite directions to open and to close the gate, a gate motor air cylinder control 30 movable to one position to energize the motor in gate opening direction and to another position to energize the motor in gate closing direction, an operating handle 27 connected with the control, and a power operated, pivoted assembly 39 for moving the control to the gate closing position and preventing manual operation by the handle 27 to move the control to the gate opening position. To permit the handle 27 to be manually operated, the assembly 39 is biased by springs 43 to engage the head 37 of a spring loaded valve plunger 35 to close an air passage 28, 31 to the air cylinder 30 through a valve 33. A charge feeler 25, riding on on the inner surface of the basket charge, moves inwardly towards a basket spindle 24 as the charge thickens and thus turns the assembly 39 clockwise so that the plunger moves to open the air passage through the valve 33, which air moves the handle 27 to the gate closing position. The opening of the gate 15 is also prevented by the overriding control mechanism when the pivoted portion 23 of a curb top cover 10 is in its closed position, as in Figs. 1 and 2, by the interaction of edge 46 of portion 23 and a pin 47 extending downwardly from arm 45.
Patent GB-1511885-A (GB)
Title: Electric circuit breaker
IPC: H01H9/42
Filed: 1975-04-23
Abstract: 1511885 Automatic circuit-breakers; electromagnetic switches SQUARE D CO 23 April 1975 [29 April 1974] 43657/76 Divided out of 1511881 Heading H1N The Specification describes a combined automatic circuit-breaker and electromagnetic overload switch as in parent Specification but the claims are directed to the mounting of movable contact arm 67 on a pivotably mounted member such as the moulded bar 63 by a tapered tongue which is "staked" to a retaining plate 69.
Patent GB-1522432-A (GB)
Title: Method of moulding hollow stiffeners or lightweight laminates or wholly box girdered laminates in fibre reinforced plastics
IPC: B29C70/30
Filed: 1976-10-21
Abstract: 1522432 Moulding fibre reinforced plastics V RUGGERI 21 Oct 1976 43672/76 Heading B5A To improve the stiffness to weight ratio of a fibre reinforced resin article, e.g. a racing yacht, the article is moulded about removable elastic cores which form channels in the article. Layers of glass or carbon reinforced polyester or epoxy resin sheets are laid on a flat mould, rubber or P.V.C. cores are placed at intervals on this, and further layers of reinforced resin are applied over the cores. Further cores may be placed in the grooves so formed and covered with further layers of reinforced resin. After moulding any air bubbles are rolled out, the resin is cured, and the cores are withdrawn by pulling on their protruding ends.
Patent GB-1110539-A (GB)
Title: Wave analyzing apparatus
IPC: G06G7/625
Filed: 1966-09-30
Abstract: 1,110,539. Pulse simulator circuit. TRW Inc. 30 Sept., 1966 [30 Sept., 1965], No. 43891/66. Heading G4G. [Also in Division G1] To measure the life-time of a physical response to a change in atomic state, such as fluorescence, electro-luminescence or photo-conductively, an analogue integrating circuit is made to simulate the physical response, the circuit parameters of which then indicate the life-time value. The measurement of the life-time of fluorescense is described, where a pulsed light source excites a gas lamp containing hydrogen or deuterium, or an oxygen-nitrogen mixture, to produce light pulses in the region of 2000 to 4000  or 3000 to 4500 A respectively for a period of 10 to 20 monoseconds, which pulses illuminate a sample. Two photo-cells are arranged one to view the pulses of light from the gas lamp and the other the fluorescent sample and their pulse outputs are displayed upon an oscilloscope. An electrical pulse is now matched to the displayed electric signal derived from the lamp pulses and is fed to an analogue circuit whose circuit parameters are adjusted so as the output matches the displayed electric signal derived from the fluorescent sample. The R.C. time constant of the analogue circuit after appropriate scaling then indicates the life time value of fluorescence. If three atomic levels are involved, producing two life-times between the levels, an additional integrating circuit is included.
Patent GB-948792-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B31/02
Filed: 1960-12-21
Abstract: 948,792. Chucks. SCULLY-JONES & CO. Dec. 21, 1960 [Dec. 21, 1959], No. 43922/60. Heading B3B. A tool-holding device comprises a rotatable sleeve 11, a tool-holder 12 engageable in the sleeve, locking means 13, 50 on the sleeve for locking the holder in a predetermined axial position, and means 82, Fig. 8, for holding the locking means in locked position when the holder is removed from the sleeve. The tool 20 is clamped in the holder 12 by a collet 26 tightened by an axially fast nut 29, the collet being prevented from rotation by a key 38. The axial position of the holder is determined by a shoulder 21 which abuts against the locking ring 50. Thus the length X from the shoulder 21 to the tool tip may be pre-set before the holder 12 is inserted in the sleeve 11 which may be integral with a machine tool spindle. The end of the tool is supported by a screwed plug 42. (In a modification, the shoulder 21 is formed on an adjustable collar 21a, Fig. 1a, and the tool 20a is inserted in a tapered bore 25a, the nut 29 and collet 26 being omitted.) When the tool-holder 12 is inserted in the sleeve 11, the shoulder 21 engages and lifts the plunger 82 to allow a ball 86 to move inwardly and unlock the collar 13, which is then rotated by a torsion spring 72 to cause cam surfaces in the collar to press balls 62 into a groove 63 in the holder thus to retain it. The balls 62 engage the top of the groove 63 to ensure that the shoulder 21 is pressed against the sleeve. To release the holder, the collar 13 is rotated manually and is locked in the released position as the holder is withdrawn by the plunger 82 moved downwardly by a spring 83.
Patent GB-1199943-A (GB)
Title: Ashtray
Inventor: POSADAS WILFRIDO E
IPC: A24F19/06
Filed: 1967-09-28
Abstract: 1,199,943. Smokers' ash tray. W. E. POSADAS. 28 Sept., 1967, No. 44246/67. Heading A2M. [Also in Division A6] A combined smokers' ash tray and miniature roulette comprises a cylindrical box 2 having a circular-apertured lid 1 and, projecting through the lid aperture 8, a conical cover 3 the upper part of which is rotatably and tiltably supported on a fixed ball. The space between the top of the cover 3 and a hollow transparent knob 4 contains a miniature roulette and ball.
Patent GB-1098179-A (GB)
Title: Improvements in and relating to pile fabrics
Inventor: JEFFREY GEORGE MALCOLM
IPC: D04H1/43
Filed: 1963-11-11
Abstract: A pile fabric is produced by raising a pile on a fabric containing a major proportion of polyacrylonitrile and which incorporates a latent solvent, i.e. a substance which may be activated to become a solvent for the fibres, for polyacrylonitrile and subsequently activating the latent solvent whereby adjacent polyacrylonitrile fibres are bonded together. The polyacrylonitrile fibres may be crimped or uncrimped. The term "polyacrylonitrile" includes homopolymers of acrylonitrile and copolymers containing at least 80% by weight of acrylonitrile units.  Specified monomers suitable for copolymerisation with acrylonitrile are styrene, methyl acrylate, itaconic acid, methallyl sulphonic acid and its salts, vinyl acetate or vinyl pyridene. Suitable latent solvents are di-substituted formamides such as bis-cyanoethyl formamide, tetra-methylene sulphone and propylene carbonate.  The solvents are preferably activated by heat.  The invention is applicable to raising piles on non-woven, woven and knitted fabrics.  The latent solvent may be applied to the fabric at any stage prior to the pile raising, e.g. by spraying onto knitted or woven fabric or by drip feeding staple fibres prior to forming into a non-woven fabric.  The solvent may be applied to the facing surfaces of two waddings before they are built up into a single fabric.  If the non-woven fabric is built up as a sandwich construction having a central scrim then the latent solvent is applied to the scrim prior to assembly of the fabric.  The solvents may be applied undiluted or as solutions, preferably aqueous solutions.  Preferably, the weight of solvent applied is less than 10%, e.g. between 1 and 5%.  On knitted or woven fabrics, the pile is raised by passing the fabrics over brushing rollers and, on non-woven fabrics, the pile is raised either by brushing or by needling using forward or reverse barbed needles.
Patent GB-1377215-A (GB)
Title: N-amino hydrocarbyl phthalimide derivatives as additives for lubri cating oils
IPC: C07D209/48
Filed: 1972-09-05
Abstract: 1377215 N-aminohydrocarbyl phthalimides BRITISH PETROLEUM CO Ltd 5 Sept 1972 [23 Sept 1971] 44393/71 Heading C2C [Also in Division C5] The invention comprises N-aminohydrocarbyl-phthalimide derivatives of Formula I: where Y is -(CH 2 CH 2 NH) n CH 2 CH 2 NH 2 , -(CH 2 CH 2 CH 2 NH) n H 2 CH 2 CH 2 NH 2  or -(CH 2 CH 2 CH 2 NH) n R<SP>1</SP>, n is 1 to 10, and R<SP>1</SP> is a C 5  to C 25  alkyl group. They may be prepared by reacting phthalic anhydride or phthalic acid with a polyamine of formula YNH 2 . The compounds of Formula I are used in lubricating oil compositions.
Patent GB-1378037-A (GB)
Title: Fluid flow control system
IPC: G01N21/76
Filed: 1972-09-27
Abstract: 1378037 Chemiluminescence THERMO ELECTRON CORP 27 Sept 1972 [12 Nov 1971] 44552/72 Heading C4S [Also in Divisions F2 G1 and G3] A constant flow from a gaseous sample source 20 to gas analysis reaction chamber 12, is maintained by the provision of two restrictors 14 and 16, a by-pass conduit 24 connected between the restrictors; a suction pump 26 connected to the by-pass conduit 24 by a line 23, and a source 30 of supplementary gas connected to the by-pass conduit via a regulator 28. In operation, the amount of gas sample drawn from between the restrictors 14 and 16 will be a function of the amount of supplementary gas drawn from source 30. Thus, if the pressure of source 20 is in excess of the constant pressure required in chamber 12, a greater proportion of the sample will be drawn away by pump 26. Thereafter, as the sample quantity is reduced, so more supplementary gas is drawn from source 30 to thus reduce the amount of sample drawn from between the restrictors by pump 26. The regulator 28, as shown in detail in Fig. 2, comprises a regulated pressure chamber 38 which is separated from a reference chamber 36 by a movable diaphragm 34 and from an inlet chamber 44 by a partition 40, the diaphragm carrying a valve member 47 engageable with a seat 42. The reference chamber 36 may contain a spring 48, a reference pressure gas supplied by line 50, or both. Chamber 38 is connected via line 24 to the junction between the restrictors 14, 16 whilst chamber 44 is fed via line 29 from source 30 (which may be the atmosphere). The reaction chamber 12 may have taking place therein an ionization process, a light absorption and scattering process of chemiluminescent process. The system may be utilized in the analysis of exhaust gases from vehicles.  As a chemiluminescent detector, it may be employed for measuring the amounts of nitric oxide in a gaseous sample mixture by reaction in chamber 12 with an oxygen-ozone reactant mixture. An apparatus employing the invention and forming such a detector is depicted schematically in Fig. 3 (not shown). A light transmitting element (58) is located in one wall of the reaction chamber (12) and an associated light detecting device (60) is provided. Nitric oxide is supplied to the chamber (12) via conduit (10) provided with the two restrictors, in the form of capillaries (14, 16), connected to the by-pass flow regulating means (22) as previously described. The reactant mixture is supplied through a conduit (56) containing a capillary (66), an ozone generator (68), a flow regulating device (72) and an oxygen source (74).
Patent GB-1526726-A (GB)
Title: Method and apparatus for detecting temperature variation above or below a predetermined value
IPC: G01K7/38
Filed: 1974-10-15
Abstract: 1526726 Detecting temperature changes SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 13 Oct 1975 [15 Oct 1974] 44614/74 Heading G1D A temperature variation above or below a predetermined value is detected by means of a toroidal shaped element of magnetic material having a Curie Point approximating the predetermined value and two mutually inductive electrical conductors, whereby with varying current passed along one conductor the induced current in the other changes on a temperature variation. Four toroidal pieces of ferrite 20, 30, 40, 50 are each traversed by two of a network conductors 21, 25, 41, 45. A connection means (not shown) enables a varying-current to be applied selectively to the conductors and a monitoring means, e.g. a lamp, to be connected selectively to the conductors to detect induced current. As shown a cold region 55 is holding piece 50 below its Curie Point while pieces 20, 30 and 40 are above the Curie Point, so that varying-current applied to conductor 41 causes an induced current in conductor 25, but not in conductor 45.