baber/WOPTO huggingface dataset:
Patent GB-1446840-A (GB)
Title: Crossword making and solving puzzle board outfit
IPC: A63F3/04
Filed: 1975-07-10
Abstract: 1446840 Crossword puzzles L M BATE 10 July 1975 29061/75 Heading A6H Apparatus for setting up crossword puzzles comprises a board presenting a grid, a plurality of "blanks" for temporarily fixing to the board and a plurality of freely movable letter pieces which will fall away when the board is inverted, the "blanks" staying in position. The "blanks" are secured by magnetism or by projections, Fig. 6, engaging recesses. The board may be of carboard, wood, metal or plastics. Boundary lines may be indicated on the board to represent various sizes of puzzle.
Patent GB-1476813-A (GB)
Title: Electric traction motor control system
IPC: H01H71/24
Filed: 1975-07-10
Abstract: 1476813 Electromagnetic switches ALLISCHALMERS CORP 10 July 1975 [5 Aug 1974] 29070/75 Heading H1N [Also in Division H2] A switch for sensing when the current through a diode shunting an inductive path of a vehicle D.C. traction motor during plugging (see Division H2) reaches a predetermined level comprises, as shown in Figs. 4 and 5, a ferromagnetic conductor RL, which is connected in use in series with the diode, and which has a recess provided with a portion 20 of reduced cross-section, and a read contact unit 12 mounted in the recess. The portion 20 concentrates the current flowing in the conductor RL and consequently provides a stronger magnetic field.
Patent GB-1491409-A (GB)
Title: Mechanically-operated electrical switch comprising strip-like contact springs
IPC: H01H9/48
Filed: 1976-07-13
Abstract: 1491409 Contact guards PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 July 1976 [16 July 1975] 29073/76 Heading H1N In an electric switch comprising a plurality of upstanding spring blade contact sets 12, 13, 14, Fig. 1, an insulating guard 17 for preventing physical damage to the contacts comprises a wall 18 extending between pairs of stationary and movable contact blades 12, 14 and carrying walls 22, 23, Fig. 2, at each end and ribs 20, 21 extending between the contact sets. The guard 17 is clamped to the stationary contacts 12 by a channel section member 24, with projections (31), Fig. 3 (not shown), on resilient arms (29) which snap-fit in slots 25 at the ends of the wall 18. The stationary contact blades 12 have bent up ends 15, 16 some of which extend through apertures 19 in the wall 18. Spaced actuators 25A, 25B operate on opposite sides of the assembly.
Patent GB-432773-A (GB)
Title: Improvements in or relating to coke ovens
IPC: B43K27/00
Filed: 1934-10-11
Abstract: 432,773. Coke ovens. JONES, G. CELLAN-, 48, The Avenue, Linthorpe, Middlesbrough, Yorkshire. Oct. 11, 1934, No. 29173. [Class 51 (ii)] A coke-oven heating-wall comprises vertical up-burning combustion flues c interposed between, and connected at their upper ends to downcast flues d adjacent the oven walls. Preferably the flues c and d are relatively staggered, as shown in Fig. 2, and adjacent flues c communicate with pairs of flues d, on opposite sides of the heating-wall. The end flues c<1> have two burners h and connect with two flues d on one side, and one on the other.
Patent GB-151857-A (GB)
Title: A new or improved tyre-fitting tool
IPC: B60C25/02
Filed: 1919-11-24
Abstract: 151,857. Sidebotham, G. H. Nov. 24, 1919. Tyres, elastic, and tyre covers, tools for removing and replacing. -The tool comprises a frame or carrier A having a hook B at one end to engage the rim flange Y, a screw E fixed endwise in the frame and threaded through a block D carrying a slide D<2> for supporting the tyre-edge W. The screw E is disposed substantially in the plane of the frame A, and the block D is of H-section engaging both sides of the slot C in the frame.
Patent GB-1440613-A (GB)
Title: Stranding machine
IPC: D07B7/02
Filed: 1973-06-20
Abstract: 1440613 Stranding machines INDUSTRIE PIRELLI SpA 20 June 1973 [22 June 1972] 29338/73 Heading D1T A double-twist stranding machine having an elongate flexible flyer element 28 extending between spaced synchronously rotating members 20, 21 is so constructed that the flyer element 28 can move radially outwards under centrifugal force, and against elastic restraint, so as to increase the path length between the spaced members 20, 21. The flyer element 28 is itself inextensible but extends to a reserve carried by one or both of the members 20, 21. Resilient means permits paying out of said reserve against said elastic restraint as the speed of rotation increases. In Fig. 2 (not shown) the reserve is carried by rotatable members (35, 36) urged in one direction of rotation by helical springs (41, 42). In this example the flyer element 28 comprises two metal wires arranged side-byside at a common radius, and means such as rings or tubes for spacing apart said wires along their lengths and for maintaining the strands 30 on said path. In a modified form the reserve is carried by an elongate slider slidable in guides under the influence of a spring bias. A duplicate flyer assembly 29 is present to balance the twister. In Fig. 1 the elements to be twisted enter the twister axially from the right hand end, pass over the pulleys 23, 26; thence along the flyer 28a; over the pulleys 24, 22; axially along the cradle 66 to pulley 69: around pulleys 69, 70 and thence onto the take-up drum 72.
Patent GB-846865-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: STUBBS JOHN JEFFREY
IPC: G21C5/08
Filed: 1955-10-14
Abstract: 846,865. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. Jan. 14, 1957 [Oct. 14, 1955], No. 29438/55. Class 39(4). [Also in Group X] A graphite block for a moderator structure comprises a channel 11 for fuel elements extending lengthwise of the block but offset diagonally from its centre. Thus when the blocks, having minimum rate of Wigner growth in their lengthwise direction, are assembled into the structure, Fig. 3, with spacing to allow transverse growth, a square lattice is provided without allowing a straight neutron path through the structure. To achieve this spacing, eight identical pins 14 are inserted in each block, each pin having a recessed end 18 into which the smaller end of a similar pin fits. These pins have minimum Wigner growth along their length. The corner 19 of each block remote from the fuel channel is chamfered to allow clearance. The fuel channel is aligned in adjacent blocks by a short graphite tube fitting in recesses 12. Vertical control rod channels are formed by milling out quadrants in the appropriate corners of certain blocks or by milling out semi-circular recesses in the sides of blocks.
Patent GB-520087-A (GB)
Title: An improved valve
IPC: F16K11/085
Filed: 1938-10-11
Abstract: 520,087. Valves. HUGO, W. T., and ANGLOAMERICAN OIL CO., Ltd. Oct. 11, 1938, No. 29471. [Class 135] A valve for connecting either the suction or the delivery side of a pump to one or more tanks comprises an outer casing 1, within which is a tubular valve 4 rotatable on an inner casing 3 by means of a handle 7. The inner casing is divided into two chambers 8, 9 by a partition 10. The chamber 8 has four ports 11 at angles of 90 degrees apart, and the valve 4 has two ports 13 at an angle of 90 degrees apart, whereby either of two passages 18, 18a, which lead from the suction and delivery sides respectively of the pump, can be placed in communication with either of the two tanks. The chamber 9 has ports leading to a pipe 19, which may serve either as a discharge or as a supply pipe, and these ports are controlled by further ports in the valve, so that either the suction - passage 18 or the delivery - passage 18a is connected to the pipe 19 for the filling or emptying of the tank. A removable cap 22 at the end of the inner casing enables a tank to be emptied by gravity or by syphoning.
Patent GB-469758-A (GB)
Title: Improvements in infinitely variable power transmission gears
IPC: F16H29/18
Filed: 1935-10-25
Abstract: 469,758. Variable-speed gearing. ROES, G. Oct. 25, 1935, No. 29484. Convention date, July 31. [Class 80 (ii)] Relates to variable-speed gearing in which a planetary train is combined with and controlled by a variable eccentric friction - ratchet drive. Spur planets 11, Fig. 1, carried by a spider 3 on a driving-shaft 1 mesh with a sun gear 12 integral with a driven shaft 13 and mesh with an annulus 7, the speed of which is controlled. The annulus tends to run away forwardly, and if it did run away freely, the sun 12 would not be driven. The 1 to 1 drive obtained when the annulus 7 turns solid, is the highest speed transmitted. The speed of the shaft 13 falls as the annulus 7 is driven faster and faster. This accelerated drive passes through discs 2, 5, 6, 21 and the speed of the last disc 21 is raised more and more by moving the intermediate discs 5, 6 to more and more eccentric positions from a control lever 10. There are suitable one-way driving clutches at 4, 4a, 4b in annular recesses such as 5a, and the clutch grip nearest the gear axis always drives by an adjacent pin, such as 4x, in a radial slot, such as 6b, in the next driven disc, in known manner. The last disc 21 thus normally rotates faster than the planet carrier 3, and the disc 21 drives the annulus 7 through an ordinary one-way driving clutch 4c, Fig. 2. The difficulty is to prevent the annulus 7 from running away freely. This is effected by a differential one-way device connecting the driver disc 21 with both the annulus 7 and the carrier 3. The disc 21 has fingers 17 projecting axially between the annulus 7 and the carrier 3, and in the pockets between these fingers there are loose wedges 20 and rollers 19. These rollers 19 and wedges 20 jam so as to prevent the annulus 7 from overrunning while allowing the one-way clutch 4c to drive the annulus at the speed at which the fingers 17 turn. If the annulus 7 be accelerated sufficiently, the driven shaft 13 is brought to rest, and then driven reversely.
Patent GB-977304-A (GB)
Title: Synchronous pulse producing apparatus
IPC: G06F11/10
Filed: 1960-12-30
Abstract: 977,304. Pulse circuits. GENERAL TIME CORPORATION. Dec. 30, 1960 [Dec. 31, 1959], No. 29508/64. Divided out of 977,301. Heading H3P. In a circuit for producing a train of pulses on output 146 having a fixed phase relationship to a train of pulses on input 134, the input pulses are delayed and injected through the upper input of OR gate S12 into a recirculating loop (monostable circuits S20, S24, S40, and gates S32, S48) having an overall transit time equal to the average period of the input pulses. Gates S32, S48 are arranged to block the passage of a pulse through the loop if a change in phase of the input pulses occurs, but allows circulation to continue if the phase of the input pulses remains normal, or if any of the input pulses are missing. A monostable circuit S4 produces a 5 ms. pulse from the leading edge of each input pulse, and AND gate S8, which acts as a pulse length discriminator, produces a short pulse on S10 at 5 ms. time provided that the input pulse is longer than 5 ms. The delayed pulse passed through OR gate S12 then causes monostable circuits S20, S24 to be triggered in turn to produce pulses at 5-11 ms. and 11-17 ms. respectively. Since the normal period of the input pulses is 17 ms., the negative pulse produced by differentiator S28 should coincide with the leading edge of the next input pulse. Assuming the next input pulse arrives at the normal time, " early " gate S32 passes the negative pulse on S30, monostable circuit S40 is triggered to produce an output pulse from 0-5 ms., the negative output pulse from differentiator S44 is passed by " late " gate S48 and arrives at S12 at the same time as the delayed pulse from S8, and the cycle is restarted. If, however, the next input pulse is between 0 and 5 ms. early (the assumed tolerance of the system), gate S32 is inhibited by input S6 when the circulating pulse arrives on S30, so that the pulse injected into the loop from S8 establishes the new phase in the system. The operation of " late " gate S48 is similar in the event that an input pulse is between 0 and 5 msec. late. Should some of the input pulses be missing altogether, neither of gates S32, S48 is inhibited and recirculation continues at the normal frequency provided control input 138 to gate S16 is energized.
Patent GB-1135502-A (GB)
Title: Improvements in or relating to expansible glass and a method for producing said glass
IPC: C03B19/08
Filed: 1966-06-30
Abstract: 1,135,502. Expansible glass. J. M. Y. LE CLERC DE BUSSY. 30 June, 1966 [8 July, 1965], No. 29521/66. Heading C1M. Expansible glass is made by heating glass fragments or a mixture of glass-making constituents, applying steam pressure, heating further to softening-point, and then cooling while maintaining the pressure. A particular example is given.
Patent GB-1170670-A (GB)
Title: Improvements in or relating to Milling Cutters
Inventor: GALE NORMAN HENRY
IPC: B23C5/22
Filed: 1967-06-27
Abstract: 1,170,670. Milling cutters. N. H. GALE, [trading as N. H. GALE (MACHINES) & CO.]. 19 Sept., 1968 [27 June, 1967], No. 29564/67. Heading B3K. An end milling cutter has a body 1 with a tapered bore 2, and two or more segments 10 adapted to clamp throwaway tips 13 therebetween upon being tightened into the bore 2 by means of a nut 7 and bolt 5. Recesses 12 formed in one or both of the adjacent faces of the segments 10 and shaped to suit the tips 13 support and locate the tips. Chip clearance cut-away grooves (16) in the segments 10 precede each cutting tip. The body 1 is screwed at 18 for attachment to a milling machine spindle.
Patent GB-1482730-A (GB)
Title: Direct current switching devices
IPC: H01H1/04
Filed: 1975-07-15
Abstract: 1482730 Switch contacts WESTFALISCHE METALL INDUSTRIE KG HUECK & CO 15 July 1975 [1 Aug 1974] 29620/75 Heading H1N Electric contacts for hob-wire flasher units of a motor vehicle are of Ag-Cu alloy at the anode and containing at least 5% by weight of copper, the contact at the cathode being a Ag-Ni alloy with a nickel content of 0À1 to 0-2%, the copper content at the anode may be up to 15%
Patent GB-895699-A (GB)
Title: Improvements in operating mechanism for sliding bolts for doors and gates
IPC: E05B47/06
Filed: 1959-08-31
Abstract: 895,699. Remotely controlled fastenings; sliding bolts. AYERS, F. P. Nov. 25, 1960 [Aug. 31, 1959], No. 29641/59. Class 44. A door or gate fastening comprises an axially slidable bolt 1 mounted in a housing 2 adapted for fixture to a door or a gate in a vertical position with the outer end of the bolt pointing upwardly, a stop 4 on or near the other end of the bolt, a weight 5 slidably mounted on the bolt for movement by gravity between a high position and the stop to provide initial impetus to the gravitational withdrawing movement of the bolt a detent 6 pivoted in the housing and adapted to retain the weight in its high position and means for releasing the detent by remote control. As shown in which the door or gate is spring urged to open position, the detent 6 is released by the armature 11 of a solenoid 7 whereby the weight is freed and strikes the stop 4 to assist withdrawal of the bolt from a socket 9. Alternatively the releasing means may be a wire or a pneumatic impulse.
Patent GB-710194-A (GB)
Title: Method of producing poly-condensed phosphoric acid esters
IPC: C07F9/09
Filed: 1951-12-18
Abstract: Polyesters are derived from polyhydric alcohols and phosphoric acids by reacting a trebly esterifiable derivative of a phosphoric acid with one or more polyhydric alcohols in which adjacent hydroxyl groups are separated by at least six carbon atoms, in a ratio such that for each molecule of phosphoric acid derivative there are more than two but at the most three hydroxyl groups. Specified polyhydric alcohols are octadecane diol, 1.6 hexane diol, polyglycols of molecular weight 180-4,000 and oxyethylation products of glycerol sorbitol and pentaerythritol.  The reaction may be stopped at any desired point by injecting steam.  The reaction may be carried out in a solvent or diluent and the product freed from solvent by blowing out with nitrogen or steam. The products give highly viscous aqueous solutions.  Any esterifiable groups in the product not esterified by polyhydric alcohol may be esterified with a monohydric alcohol in the course of the reaction.  In an example 60 parts of phosphorus oxychloride and 1 part of phosphorus trichloride are added to 300 parts of a liquid polyglycol of mean molecular weight 500 dissolved in 400 parts of ethylene dichloride and the mixture boiled for about 2 hours, the reaction being arrested by injecting steam when the desired viscous consistency is reached.  Solvent is removed by blowing with nitrogen or steam.
Patent GB-321046-A (GB)
Title: Improvements in dental, surgical, and like chairs, tables, or the like
IPC: A61G15/10
Filed: 1928-10-15
Abstract: 321,046. Tangyes, Ltd., and Chapman, H. W. Oct. 15, 1928. Furniture, means to facilitate moving bodily.-Relates to dental, surgical &c. chairs, tables &c. having feet on which they stand firmly and castors attached on the feet, means being provided for bringing all the castors into or out of operation simultaneously. For this purpose the castor brackets 6 slide on the feet 4 under the action of levers 8. The other ends of the levers 8 bear on a collar 9 sliding in a central shaft 10 screwed to engage a nut 11, which is rotated by a hand-wheel 11<a> to raise or lower the castors.
Patent GB-259062-A (GB)
Title: Improvements in or relating to web feeding mechanisms for printing presses and othermachines
IPC: B65H23/06
Filed: 1925-11-24
Abstract: 259,062. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Nov. 24, 1925. Feeding webs. - In a feeding- mechanism for webs drawn from a roll into a receiving machine, of the kind comprising means for imposing a continuous drag upon the roll for tensioning the material, and means for imposing an increased drag thereon upon the quick stopping of the receiving machine, the amount of the increased drag is dependent upon the weight of the roll; further, the dynamic braking current generated by the driving moter of the receiving machine is used in known manner to operate emergency stopping means for the machine, and also operates the emergency stopping means for the supply roll. The web roll 8, Fig. 2 is supported on spindles 6. 7 rotatably mounted within bearings carried by arms 9, 10 which are connected together at their lower ends by a sleeve 11 rotatably mounted upon a supporting-shaft 12. Each spindle 6, 7 carries a brake drum 13 co-operating with a brake shoe 14 pivotally secured by a pin 16 to an arm 15, the two arms 15 being fixed to the shaft 12. which is supported by bearing pedestals 17. The shaft 12 may be rotated by worm and pinion gearing driven by an electric motor 18 to adjust the positions of the arms 15 in known manner. The brake shoes 14 can be rotated upon their pivot pins 16 by armatures 22, Fig. 3 which are also pivoted upon the pins 16 and are provided with adjusting-screws 27 bearing upon the brake shoes, so that when the lower ends of the armatures are attracted by electromagnets 21 seated within recesses in the arms 15 the screws 27 bear upon the brake shoes 14 and swing their lower portions inwardly upon the brake drums 13, their faces then being eccentric to the drums. In the normal running position the faces of the brake shoes are concentric with the drums 13, the electromagnets then being de-energized. The inward swinging of the lower ends of the brake shoes consequent upon the quick stopping of the machine increases the component of the weight of the roll passing through the points of contact, and thus produces an increased drag which is dependent upon the weight of the roll. The electromagnets controlling the brake shoes are connected in parallel with the dynamic braking circuit of the press. Specification 240,344 is referred to.
Patent GB-425558-A (GB)
Title: Improvements relating to telephones
IPC: H04R1/02
Filed: 1933-10-26
Abstract: 425,558. Receivers ; loud-speakers; horns. GRAHAM & CO., Ltd., A., Caxton House, Tothill Street, London, and VAUGHAN, C. H., 20, Cock Mannings Road, St. Mary's Cray, Kent. Oct. 26, 1933, No. 29732. [Class 40 (iv)] [See also Group XXXVIII] In a telephone receiver or loud-speaker particularly for use on ships, a number of screens of wire mesh are arranged one behind the other in front of the diaphragm, and are spaced apart by members provided with drainage apertures. As shown applied to a loud - speaker, one screen 10 is secured between rings 8, 9, which are held in position against a rubber washer 7 by screws 11, and other screens 12, 14 are held in the rings 8, 9 by split-rings. The screens may be of different meshes. The rings 8, 9 are cut away or pierced in register with drainage apertures 16 in the casing. The apertures 16 may be protected by louvres. The sound aperture is formed with slats 6 or louvres The casing comprises a part 1 containing the sound passage and screens, secured to a second part 2 which supports the other components. In a horn-type instrument the screens are at the mouth of the horn.
Patent GB-1434840-A (GB)
Title: Impeller or turbine wheel for torque converter or fluid coupling
IPC: F16D33/18
Filed: 1973-06-22
Abstract: 1434840 Hydrodynamic couplings KABUSHIKI GAISHA DAIKIN SEISAKUSHO 22 June 1973 [5 July 1972 (2)] 29876/73 Heading F2W An impeller or turbine wheel for a fluid coupling or torque converter comprises a series of blades 40 between an inner core ring 41 and an outer shell 39 and each blade 40 has a flange or flanges 46, 47 at its inner and/or outer periphery which flange or flanges are secured to the inner core ring 41 and/or the outer shell 39. As shown each blade 40 has flanges at both its inner and outer peripheries and the flanges are spot welded at 49, 53 to the core ring 41 and shell 39. The blades 40 are positioned relative to the core ring 41 and shell 39 prior to welding by tabs 48, 50 formed on the flanges 46, 47 or by projections (65, 66) pressed from the flanges 46, 47 and engaging recesses (63, 64) in the core ring and shell respectively. As shown the blade wheel 40 forms an impeller 11 of a torque converter and is secured to a driving flywheel 14, a similarly constructed wheel 55 forming the turbine 12. The impeller 11 carries cooling fins 45. In Figs. 6-10 (not shown) a pair of blades (69a, 69b) are secured together at their outer peripheries by a common flange (70) which is secured to the outer shell.