baber/WOPTO huggingface dataset:
Patent GB-123766-A (GB)
Title: Improvements in Alternating Current Limiting Apparatus.
Inventor: SALTO SALVATORE
IPC: H01H75/06
Filed: 1919-02-25
Abstract: 123,766. Salto, S. Feb. 28, 1918, [Convention date]. Electro-magnetic switches; switches partly electro-magnetic.-In an alternating current overload limit switch, the switch is held open by a coil b supplied at a lower voltage than the main voltage. The switch is opened on an overload either by a thermal device or by a coil a in the main circuit. The coil b is connected to the secondary of a transformer 10, the circuit being completed either direct to the transformer or through the consuming devices; in the latter case, as some of the consuming devices are switched out after an overload, the resulting lowering of the current through the coil b immediately allows the switch to close. An adjustable plate 21 in a slot 22 in the magnet may be used to vary the magnetic circuit. The stop 20 for the armature is adjustable.
Patent GB-556181-A (GB)
Title: An improved linear measuring device
IPC: G01B3/20
Filed: 1942-04-11
Abstract: 556,181. Micrometer adjustment and gauge device. BRITISH INSULATED CABLES, Ltd., and THORPE, C. H. M. April 11, 1942, No. 4797: [Class 106 (ii)] A carriage slides along a scale made up of rollers or balls in contact arranged in a trough, and is located by a retractible device engaging between any two rollers, the carriage being also provided with a plunger having a fine adjustment and with a second coaxial plunger in spring contact with the first and acting upon the part to be adjusted. The scale comprises a straight trough 1 made up of a flat rod 3 and strip like side members 4 inwardly turned at the upper ends to house hardened steel rollers 9 with their curved surfaces in contact. The end wall 11 is secured to the bottom wall 3 by screws 12 and carries a grub screw 13 to form an abutment for the end roller. The end wall 10 may be similarly arranged, a spring 14 being inserted between one of the abutments and the end roller. This may be done at each end. The sliding carriage 2 is of inverted channel section the lower edges of the side being turned in to engage under the edges of the plates 4. The upper wall 17 houses a spring detent 20 adapted to engage between neighbouring rollers to locate the carriage The detent has a transverse pin 23 with finger grips. Numbers indicating the stops may be viewed through an aperture 26. The carriage has an upward extension 27 carrying a micrometer screw 28, 29, 30. A housing 35 is provided for a spring plunger 36 in line with the micrometer spindle 29. The plunger 36 may be carried on an auxiliary carriage 37 secured to the main carriage by screws 38. For gauging, the end wall 10 is extended at 33 and carries an anvil 34. In a modification, a spring lever pawl is substituted for the detent 20 and the plunger or spindle 29 is moved by rack and pinion.
Patent GB-1532553-A (GB)
Title: Couplings for shafts rods and pipes
IPC: F16B21/12
Filed: 1976-02-06
Abstract: 1532553 Shaft couplings; universal joints; pipe joints P J L PEAN J A PEAN and B M R REY 6 Feb 1976 [6 Feb 1975] 04806/76 Headings F2U and F2G A coupling, Fig. 1, for two shafts or pipes 1, 2, comprises a first member 1a provided with a convex annular conical joint face 4 on its flange 1b, a second member 2a having a complementary concave annular conical joint face 5, and a series of three or more equally-spaced tubular resilient dowel pins 8, which during assembly are forced inwardly into precisely aligned holes 10, 9 extending through both members 2a, 1a respectively in an oblique direction intersecting the axis 6 and inclined relatively to the mating conical faces 5, 4 at an included angle a which differs from 90 degrees. The conical faces 4, 5 may abut closely, Fig. 1, or may alternatively be spaced apart to admit an interposed gasket (12) Fig. 2 (not shown). In another embodiment, Fig. 3, an intermediate coupling element 13, which may be resilient, is interposed, with conical joint faces 41, 51 and 42, 52 at both ends of element 13, secured by pins 81 and 82. An element 13 may additionally be provided with an enveloping coating 14 of an elastic sealing material, forming a sealed fluid coupling which may accommodate thermal expansion or contraction of the coupled pipes.
Patent GB-1221271-A (GB)
Title: Analog-to-digital conversion apparatus
IPC: G01T1/185
Filed: 1969-01-29
Abstract: 1,221,271. Analogue/digital converters. NUCLEAR-CHICAGO CORP. 29 Jan., 1969 [30 Jan., 1968], No. 4822/69. Heading G4H. Apparatus for measuring a physical quantity converted into a linear analogue signal with a constant slope includes a storage capacitor 14 (Fig. 1) to which the analogue signal is applied, during a first time interval, the length of which depends on the range in which the analogue signal lies and is determined by the number of clock pulses generated as the signal varies between two threshold levels, this number being counted and decoded to control the position of the decimal point. During a second variabe time interval the capacitor 14 is discharged by a constant current source 15 and the time taken for the capacitor to discharge is measured by counting clock pulses. In the embodiment described for measuring the radiation level in an ionization chamber, the threshold detectors 17, 18 detect levels of 0À1 volt and 1À1 volts respectively, a clock 24 pulsing counter 25 at a first frequency from the time a level of 0À1 volt is exceeded until both the 1À1 volt level is exceeded and the counter holds a count of 1, 10, 100 or 999 when gates are enabled to reset electrometer 10 and counter 25, disconnect the input and enable a constant current source 15. The counter then receives clock pulses at a second frequency until the 0À1 volt level is again detected when the count is decoded and displayed on lamps 28, 29, 30. The position of the decimal point is determined by the number of pulses fed through OR gate 46 to counter 49, 50, 51 when the capacitor is charging. If outputs on all four leads 001, 010, 100, 999 are received lamp 56 and a micro-curie lamp 33 are lit. If the voltage is less than 1À1 volts when a count of 999 occurs this count results in the discharging of the capacitor and additional circuitry (Fig. 4, not shown) is used to increase the frequency of the pulses during discharge of the capacitor by 10. Decimal point light 57 and the micro-curie light 33 are then lit. If a level of 10À1 volts is detected before the first clock pulse, the circuitry of Fig. 3 (not shown) is used to give an " above range " indication.
Patent GB-107774-A (GB)
Title: Improvements in or relating to Hot Water Supply Tanks.
Inventor: TROOST CHRISTIAAN FREDERIK
IPC: F24D17/00
Filed: 1916-04-05
Abstract: 107,774. Troost, C. F. April 5, 1916. Tanks. - In order to prevent mixing of incoming cold water with the hot water in the tanks of hot-water supply systems, these are provided with vertical diaphragms 6 and tubes 8 entering the diaphragms near the top and opening near the bottom of the next cell, from which, in the example shown, the hot water is drawn through the pipe 2. Preferably a suitable insulating material is employed for the partitions, and the cold water is admitted to the bottom of each cell in a flat stream.
Patent GB-447997-A (GB)
Title: Improvements in and relating to collapsible gates of the lattice-bar type
IPC: E06B9/06
Filed: 1935-02-16
Abstract: 447,997. Collapsable gates. FYVIE, G., and FYVIE, W., 45, Kenmure Crescent, Bishopbriggs, Glasgow. Feb. 16, 1935, No. 5081. [Class 45] A collapsable gate comprising lattice-bar and channel-bar assemblies, the lattice-bars 1, 2 having fixed and sliding pivotal connections with the channel-bars so that the gate functions as a lazy-tong structure, has some or all of the sliding or running pins, such as 8, formed with a shouldered or dovetailed head 9 which slides in a guideway formed in the associated channel-bar 4, by deforming locally the flanges of the channelbar. The head is preferably of # - form in elevation.
Patent GB-1369176-A (GB)
Title: Cigarette holder
IPC: A24F13/04
Filed: 1973-02-01
Abstract: 1369176 Cigarette holder N FUJIMURA 1 Feb 1972 [2 Feb 1972 25 March 1972 26 Aug 1972] 5130/73 Heading A2M The holder includes a permanent magnet 7 provided with an elongated recess 8a, 8b at each end and longitudinal grooves 9, so that smoke entering from a cigarette held in a holder member 1 passes through an opening 5 in a spacing member 4 to impinge on one end of the magnet 7 in the recess 8b and is then constrained to flow along channels formed between the grooves 9 and the walls of a cylinder 6, the smoke being finally directed against the other end face of the magnet 7 before exiting through the mouthpiece of the holder. In another embodiment, Fig. 4, (not shown), the holder member 1 is provided with a helical groove along part of its length which holds the cigarette so that a small amount of air is drawn into the holder along the groove along with the smoke from the cigarette. In a further embodiment, Fig. 5 (not shown), a second magnet (7'b) is disposed in magnetically repulsive relation to, and downstream of, the original magnet (7'a) This second magnet being provided with a centrally located longitudinal bore through which the smoke passes to the mouthpiece.
Patent GB-1440561-A (GB)
Title: Attachment for dental mirrors
IPC: A61B1/247
Filed: 1974-02-05
Abstract: 1440561 Dental mirrors CERBO AB 5 Feb 1974 5204/74 Heading A5R A debris collecting attachment for a dental mirror comprises a resilient body having a flat bottom 29 connected to a conical brim 21 by a cylindrical sleeve 23, the sleeve 23 having an internal circumiferential groove 25 for receiving the frame 13 of the mirror 11 and the bottom 29 having an eccentric aperture 31 for the passage of the shank 17. As the mirror is pushed into the groove 25, the sleeve 23 stretches and then contracts to allow it to enter the groove 25 and be retained therein.
Patent GB-550863-A (GB)
Title: Improvements in or relating to expansible braided wire covers or jackets for rubber tubes or cartridges for fluid pressure mining
Filed: 1941-04-23
Abstract: 550,863. Tubular braided wire fabrics. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). April 23, 1941, No. 5228. [Class 109] [Also in Groups XXI, VIII and XXVIII] Relates to braided wire covers or jackets 12 for tubular rubber mining cartridges 10 which are expanded by internal fluid pressure. The invention particularly relates to tubular braid for this purpose in which the sets of stranded wires 18 extending over and under each other are arranged helically and consists in making the pitch of the sets less near the end fittings 14, 16 of the cover than at the central part. Further, the strands forming each wire are rendered smooth as by grinding to prevent nicking during expansion and contraction of the cover. Specication 541,444, [Group XXI], is referred to.
Patent GB-1439182-A (GB)
Title: Facing agent for moulding a shell mould
IPC: B22C3/00
Filed: 1973-05-22
Abstract: 1439182 Shell -moulding compositions KOMATSU SEISAKUSHO KK 22 May 1973 [22 May 1972] 05233/76 Divided out of 1439181 Heading C3R A powdered facing agent for moulding a shell mould comprises, by weight 100 parts powdered refractory (R) and 10-40 parts of a binder containing a novolak (N) mixed with 0À5-9% based on (N), or vinyl acetate resin (V). (R) may be alumina, zircon, silica, or magnesia of particle size 250-450 mesh Tyler. Iron sand may additionally be present. The ingredients (R), (N), and (V) may be mixed at 150-200‹ C., cooled and ground to 400 mesh or (R), (N), and (V) may be mixed with 2-10% wt. methanol, dried, and ground.
Patent GB-563323-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M50/627
Filed: 1943-04-05
Abstract: 563,323. Accumulators. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and BROWN, S. April 5, 1943, No. 5410. [Class 53] A sealed compartment or container c filled with electrolyte is arranged above the plates b, the compartment &c. being punctured to allow the electrolyte to cover the plates. A tube g, having apertures i, j at the positions shown, is sealed at the top when the compartment has been filled, the top and bottom of the tube being pierced when the cell is to be used.
Patent GB-210098-A (GB)
Title: A new or improved binder or cover for music or other sheets
IPC: B42F11/02
Filed: 1922-11-24
Abstract: 210,098. Bulman, L. T. Nov. 24, 1922. Fold-engaging files.-Relates to binders of the type in which folded sheets are held within a cover 1 by means of fingers 5 disposed at the top and bottom of the back 2 of the binder and adapted to engage in the folds, one set being fixed in a position parallel with the back and the other or both sets being retained in this position but movable about a pivot into a position at right angles thereto. A retaining member 9 is provided disposed adjacent to the pivot 6 of the movable fingers 5 and extended to engage, them, this member being slidable to release the fingers. The fingers are mounted in a box 3 attached by special means to the cover, the member 9 being connected to the back of the box by means of a pin 12 and slot 11. A laterally slidable plate 13 guided on the pin 12 by means of a slot 15 engages a lug 17 on the member 9 to retain the latter in the closed position and engages a second lug 16 to limit its outward movement. The fingers 5 meet a stop 19 when in the closed position. The boxes 3, 4 are secured to the back by bent-over parts 23, Fig. 4, one of which passes through a slit 22 in the inner part 21 of the back and the other passes over the end of the part 21.
Patent GB-413995-A (GB)
Title: Improvements in or relating to mounting arrangements for cathode ray tubes
IPC: H01J29/92
Filed: 1934-02-19
Abstract: 413,995. Cathode-ray tubes. COSSOR, Ltd., A. C., Cossor Works, Highbury Grove, London.-(Assignees of Ardenne, Manfred, Baron von ; 19, Jungfernstieg, Lichterfelde- Ost, Berlin.) Feb. 19, 1934, No. 5449. Convention date, Feb. 17, 1933. [Class 39 (i).] All electrodes at or near one potential are connected to projecting pins on the cap of the tube fitting into corresponding sockets in a mounting and all electrodes at or near a greatly differing potential are connected to terminals on the side of the cap and are thus spaced away from the pins to prevent short-circuits and flash over. A cylindrical cap has at its base five pins of which the central pin a is connected to the anode of the tube and the outer pins P<1>..P<4> are connected to the deflecting plates. Terminals h, Z at the sides of the cap are connected to the filament and shield of the tube.
Patent GB-197094-A (GB)
Title: Improvements in and relating to radiators for internal combustion engines
IPC: F28D1/03
Filed: 1922-02-24
Abstract: 197,094. Stolp, F. H. Feb. 24, 1922. Plate apparatus.-In motor-car and like radiators of the kind in which the walls of the air and water passages are formed of separate pieces of metal mechanicallv interlocked, the air or water passages are formed of walls 2, Fig. 5, having channels 5 crimped therein and the imperforate walls 7 of the other set of passages have portions 8 adapted to be clinched within the channels 5 in the assembled radiator. Preferably, as shown in Fig. 7, the water passages 3 are formed between two adjacent walls 2 and the air passages 9 are formed by a continuous strip of metal 7 folded upon itself, the bends 8 being positioned in the channels 5, which are then upset or compressed from the reverse side by means of tools A, Fig. 6, and, in being flattened out, clinch the edges of the bends 8. The entire length of the channels 5 may be compressed in this way or, by the use of a tool having faces B at spaced intervals, the channels 5 are flattened out also at spaced intervals. In a modification, Fig. 9, each channel 5 is made of sufficient width to embrace three folds of the strip 7. The walls 2 are preferably made of copper or zinc and the strips 7 of aluminium, no soldering being necessary to connect the two sets of walls.
Patent GB-415141-A (GB)
Title: Improvements in or relating to directional aerial systems
IPC: H01Q21/06
Filed: 1933-02-23
Abstract: 415,141. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and GREEN, E., Penrose, Long Stomps, Chelmsford. Feb. 23, 1933, No. 5586. [Class 40 (v).] Relates to directional aerial arrays in which two symmetrically arranged conductors are connected together at one end and have looped portions extending at right angles to straight portions and currents in a set of parallel portions are aiding while those in the set perpendicular thereto are mutually cancelling. In one embodiment two wires A-K and K-U, Fig. 1, are joined together at K and folded as shown, the ends A, U being connected to a high-frequency source. Currents in the horizontal portions are in aiding relation so that these portions act as radiators while the vertical portions act as feeders, the currents therein being in opposition. The dimensions of the various portions are shown on the Figure in terms of the wavelength #. In another embodiment, Fig. 3, the overall width of the horizontal portions is halved, the top vertical portion omitted and the feeder portions uncrossed. Such a system, if feed as shown produces horizontally polarized radiation. It may alternatively be fed by a generator connected between earth and a junction between the two free ends of the system to produce vertically polarized radiation. Both horizontally and vertically polarized waves may be radiated independently by connecting one secondary of a supply transformer WX, Fig. 5, between the two ends of the system, the primary of which is connected to a source 1, and a secondary Z of a transformer between earth and a mid-point tapping on the winding WX, the primary of which is supplied from a source 2. The aerial systems may form elements of a compound array (Figs. 2 and 6 not shown), the various elements being fed in phase from a common source and similar reflector arrays may be arranged therebehind which may be independently excited. Alternatively, a screen composed of half-wavelength conductors arranged as in Fig. 7 may render the radiation unidirectional, and if waves of only one direction of polarization are to be used, a screen of parallel half-wavelength elements, which may be less than half a wavelength apart, may be used. All the systems may be used for reception.
Patent GB-404158-A (GB)
Title: Improvements in and relating to ships derricks and cargo working machinery
IPC: B66D1/26
Filed: 1932-07-13
Abstract: 404,158. Winches. CLARKE, CHAPMAN, & CO., Ltd., Victoria Works, Gatesheadon-Tyne, and MACFARLANE, G. T., 16a, Station Parade, Northwood, Middlesex. July 13, 1932, No. 5595/33. Divided on 402,881. [Class 78 (v).] Derrick winch-gear comprises co-axial derricking and hoisting drums 11, 12 selectively driven from a shaft 15 parallel to the drum shaft 10. The drums 11, 12 carry gear wheels 13, 14 engaged by pinions 16, 17 on the shaft 15, and coupled thereto by cone or dog clutches 22, 23, &c. Unidirectional brake drums 38, surrounded by weighted bands 40, may control the downward motion of the load. The shaft 15 is driven from an engine shaft 24 through gear wheels 31, 32, 33, 35, of which wheel 33 is slidable along but rotatably fixed to the shaft 24 and the wheel 31 is normally loose. Sliding of the wheel 33 out of engagement with the wheel 35 brings dog clutches 36, 37 into abutment and locks the wheel 31 to its shaft, thus introducing a different gear ratio between shafts 15 and 24. In order to drive down the hook when light, gear wheels 55, 56 on the shaft 24 engaging the wheels 13, 14 are coupled to the shaft 24 by clutches 57, 58 actuated by the drum clutch operating levers after these have released the brakes 38. Warping drums may be provided on the ends of the shafts 10, 15 for use when the drums 11, 12 are held stationary, the engine link motion lever being interlocked with the clutch levers so that the engine can be reversed only when all other mechanisms are disconnected from the engine. For slewing the derrick, drums 59, 60 are provided to receive slewing guys. These drums are driven through clutches 69, 70, irreversible worm gear 62, and bevel wheels 65, 66, 67 from a pinion 79 fast on shaft 15 and a gear wheel 78 on shaft 10. Provision may be made for cooling the brakes and clutches, e.g. by wind vanes on the sheaves. The stop valve for the engine may be fitted with a foot-operated regulator. In a modification an electric motor is substituted for the steam engine, and one gear ratio only is provided between the shafts 15 and 24. The shaft 24 is used only for reversing, the shaft 15 being driven directly through worm gear by the motor spindle. The drums 11, 12 may be employed to control two standing derricks. The winch may be operated by remote electric, hydraulic, or pneumatic control. Specification 402,881 is referred to.
Patent GB-850898-A (GB)
Title: Improvements in apparatus for charging pulverizers
IPC: B65G65/00
Filed: 1959-02-18
Abstract: 850,898. Endless conveyers; screw conveyers. MASCHINENFABRIK BESTA. Feb. 18, 1959 [Feb. 20, 1958], No. 5605/59. Class 78 (1). In apparatus for charging pulverisers with coal of the kind wherein a continuous scraper chain 2 feeds the coal from a hopper 1 and through a discharge trough 3 to a delivery shoot 13 in which it descends to the pulveriser, a double paddle shaft worm conveyer, comprising contra-rotating shafts 10, 11 each formed with paddles 12, is adapted to receive coal from the scraper chains and convey it along a trough 9 to the delivery shoot 13. In one embodiment, Fig. 1, an opening 15 in the base of the discharge trough 3 extends throughout the length of the worm conveyer the paddles 12 of which are so inclined as to convey the material from either end of the worm conveyer towards the delivery shoot 13. In a second embodiment, Fig. 2, the opening 15 extends over only a part of the length of the worm conveyer the paddles 12 of which are all set to convey the material from right to left, i.e. towards the delivery shoot 13. In both embodiments, the flow of coal from the hopper 1 is controlled by a trimming device 6 and a strand breaker 7. Jets of air are directed over the lower run of the scraper chain from nozzles provided in an air duct 8 to spread the coal evenly in the discharge trough 3.
Patent GB-124592-A (GB)
Title: Improvements in Joints for Wood.
Inventor: WALTERS WILLIAM NASSAU
IPC: B27M3/00
Filed: 1918-04-02
Abstract: 124,592. Walters, W. N. April 2, 1918. Joints, carpenters' &c.-Two pieces of wood are jointed endwise by bevelling the ends and forming on each bevelled face parallel V-shaped grooves A<2> and projections A<3>. The grooved faces are coated with adhesive and pressed together.
Patent GB-375737-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04B15/06
Filed: 1932-02-25
Abstract: 375,737. Wireless receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Carlson, W. La V.; Haddonfield Manor, Haddonfield, New Jersey, U.S.A.) Feb. 25, 1932, No. 5692. Convention date, Feb. 25, 1931. [Class 40 (v).] A shielded receiver 1 is connected to a remote aerial 9 by shielded conductors 19 and is energized by a shielded mains-supply unit 5, connected to supply mains 31 through a filter 33, 35. As shown, the receiver and supply unit are housed in a common shielding-box 7 with a loud-speaker 3 behind a shielded soundpermeable aperture 39. Other shielded airpermeable apertures 41 provide ventilation or minimize sound resonance. The receiver is tuned by a knob 43 outside the shield. The receiver and supply unit may be shielded separately and connected by shielded conductors. The receiver is connected by a lowimpedance two-wire transmission line to the aerial system, which comprises an aerial connected to a counterpoise 11 through a shielded impedance 13.