baber/WOPTO huggingface dataset:
Patent GB-926837-A (GB)
Title: Method of and apparatus for manufacturing insulated rail-joints
Inventor: OFFERMANN KURT
IPC: E01B11/54
Filed: 1961-01-18
Abstract: 926,837. Moulding rail joints. LEUNA -WERKE WALTER ULBRICHT VEB. Jan. 18, 1961, No. 2046/61. Class 87(2). [Also in Group XXX] An insulated rail joint is formed by positioning a mould 2 around the joint in the rails S encasing the whole in a vacuum vessel 3, and introducing e.g. epoxy resin into the mould from a vessel 5. A wooden lining can be used to prevent the resin from spreading on to the working surface of the rails. The joint can be made with the rails in position and pressure or ultrasonic vibration can be used instead of suction. The mould may be lined with a silicone release agent.
Patent GB-584826-A (GB)
Title: Improvements in baits for fishing
IPC: A01K85/12
Filed: 1945-01-25
Abstract: 584,826. Fishing. THOMAS, B. Jan. 25, 1945, No. 2059. [Class 48] An artificial spinning bait comprises a body 7 and a ferrule 5 of metal, or other material, with an opening providing a seating for the line end of the hook. The ferrule may be split into two halves divided longitudinally. They may be made in various sizes. The Provisional Specification states that the ferrule may be fitted into the head of the bait.
Patent GB-1098792-A (GB)
Title: Searching film reader
IPC: G03B21/11
Filed: 1965-01-18
Abstract: 1,098,792. Information retrieval apparatus; photo-copying apparatus. EASTMAN KODAK CO. Jan. 18, 1965 [Jan. 16, 1964]; No.2105/65. Headings G2A, G2C and G2E. An automatic microfilm reader 10 for searching films, Fig. 2 (not shown) having images (32), (33), (34) thereon distinguished by coding signals (36) comprises a motor (68) Fig.4 (not shown) for driving a film at high speed through the reader, code signal detecting means (photo-cells 57, 58, 59) Fig. 4 which compare the detected signal with the signal corresponding to a required preselected coding (set on a keyboard 14), control means for stopping the motor when the detected signal and the required signal are the same, counter means (70) for assessing further motion of the film after the motor (68) has been stopped and before the film stops, and a second motor 72 for slowly rewinding the film through the reader until each of the document marks (38), (39) Fig. 2 counted by the circuit (70) has been recounted, so that the required document is in a position to be shown on a viewing screen 12. A heat filter screen 55 is provided between an illuminating lamp 42 and the film (31), the filter being retractable when infrared light-sensitive detection elements are used. Magnetic coding and reading heads may be employed. Photo-copying Apparatus. When a copy of the document shown on the screen 12 is required, a mirror 45, on which the document image is formed by the lamp 42 and a lens system 43, is tilted to the position 48, a circuit 78 first extinguishing the lamp before tilting the mirror. A lamp control circuit 79 regulates the illumination of the lamp 42 in conjunction with a shutter 50 to prevent blurring. Paper from a supply 49 is exposed, developed in a tank 51, and passed out of the apparatus by rollers 52.
Patent GB-178550-A (GB)
Title: Improvements in mills for grinding paints, enamels, inks, and similar substances
IPC: B02C4/04
Filed: 1921-01-18
Abstract: 178,550. Smith, S. Jan. 18, 1921. Roller mills.-Relates to mills for grinding paints, enamels, inks, &c. and of the kind in which the rollers or grinding stones are independently rotated on horizontal axes which are adjustable for wear in a casing provided with a feed-hopper and with an adjustable scraper to remove the surplus material from the end roller. One of the rollers C is driven by spur gearing C<1>, C<2> from the driving-shaft B, while the other rollers are driven by chain gearing C<3>, C<4>, the chains C<3> passing over idle wheels C<5> mounted in bearings C<6> on the frame A so as to take up the sag of the chains when the spring-mounted bearings C<7> of the rollers are adjusted for wear. Two of the sides D of the feed-hopper are adjustable by means of a right and left handed screw E engaging guide-plates D' secured to the sides. The screw E is operated by means of a hand-wheel D<2> at one or both ends, and the plates D<1> are guided by a rod F fixed to the frame A. The adjustable scraper G is removably pivoted to an arm G<2> fixed to a rod G<3>, which can be rotated by means of a wheel G<4>.
Patent GB-680621-A (GB)
Title: Improvements in or relating to forging presses
IPC: B30B15/16
Filed: 1949-01-28
Abstract: 680,621. Hydraulic presses; hydraulic accumulators. STEVENS, A. H. (Clearing Machine Corporation). Jan. 28, 1949, No. 2407/49. Class 69 (ii). A hydraulic forging press comprises a hydraulic generator arranged between a source of liquid and one or more cylinders of a movable head, a bypass valve connected on one side with said source and on the other with a pipe connecting said generator to said cylinder, means for keeping the by-pass closed in control dependency from the drive of said generator during a predetermined and variable number of cycles to produce the desired number of strokes of the press head. The press head 5 is constantly urged upwardly by pneumatic pistons 48 connected to a supply tank 52 and is moved down, as required, by a hydraulic plunger 7 the cylinder 10 of which is connected to a hydropneumatic intensifier 71 set to receive liquid, via a pipe 79, when the pressure in the cylinder 10 exceeds 6,000 lbs. per square inch. The cylinder 10 is also connected by a pipe 12 to a cylinder 34, the plunger 39 of which is constantly reciprocated by an eccentric 43, gearing 82 and motor, not shown, the driving shaft 81 of which carries a fly wheel 80. The pipe 12 is connected to liquid supply tank 14 through a check valve 23 and a pneumatically-operated valve 24 controlled by a solenoid-operated valve 33 so arranged that when the solenoid 53 is energised the valve 24 is closed. Normally the valve 24 is kept open and liquid flows from the cylinder 34 into the tank 14 and then back again. One circuit through the solenoid 53 includes ahand-operated switch 56 and a switch 62 closed, during each upward movement of the plunger, by a cam 58 on the shaft 44 of the eccentric 43 so that if the switch 56 is closed the head 5 is moved down each time the plunger 39 is moved up. Another solenoid circuit includes switches 57 and 69, this being closed and opened at the end of successive down strokes of the plunger 39 so that if the switch 57 is closed by hand the head is moved down each alternate time the plunger 39 moves up. At all other times the head is moved and held up by the pistons 48. The solenoid may be energised to give a single down stroke to the head 5 by pressing a switch 55. Hydraulic plungers 93 may be provided for adjusting the top position of the head 5. The intensifier 71 may have a camoperated limit switch 86 to open the valve 24 and another 100 to light a lamp when liquid pushes the plunger 78 down so that the operator will know that the press is being operated at full pressure.
Patent GB-765514-A (GB)
Title: Process for the purification of diphenylol propane
Filed: 1955-01-27
Abstract: Diphenylol propane is purified by treatment with water and an alkali metal hydroxide so that the diphenylol propane mainly dissolves and the impurities remain entirely or partially undissolved, followed by isolation of the undissolved impurities and recovery of the diphenylol propane from solution, e.g. by precipitation with dilute sulphuric acid.  An hydrated manganese dioxide may be added to the alkaline solution of diphenylol propane for the removal of polyvalent metal ions, e.g. lead and iron.  From 0.8 to 2.5 mol. sodium hydroxide should be used per mol. of diphenylol propane, and up to 1-20 per cent by weight of the latter based on the water used. Temperatures below 60 DEG  C. are preferred.  Examples are given using sodium and potassium hydroxides.
Patent GB-848550-A (GB)
Title: Improvements in or relating to motorised cycles
IPC: B62M9/00
Filed: 1957-01-24
Abstract: 848,550. Engine assisted cycles. BERNARD, J Jan. 24, 1957 [March 6, 1956], No. 2540/57. Classes 79(2) and 79(3). [Also in Group XXXV] In a motorized cycle having a motor 1 mounted forwardly of the pedal crankshaft 9, the flywheel 14 and output drive member 15 of the motor are disposed at the side opposite to the chainwheel 11, and a generator 16 supplying the ignition current is disposed on the same side of the cycle as the chainwheel 11. The output drive member 15 is operatively connected to a pair of wheels 12, 13 rotatably mounted on the shaft 9. The drive member 15 may be connected with the flywheel 14 through an automatic centrifugal clutch. The generator 16 may also supply lighting current. The motor 1 is secured to the cycle frame by means of a pivot 4 and a bolt 8 passing through a plate assembly 6. The generator 16 has a detachable fluid-tight cover (not shown). In a modification (Fig. 4, not shown) the output drive member 15 is arranged between the motor 1 and flywheel 14.
Patent GB-911767-A (GB)
Title: Improvements relating to footwear
IPC: A43B7/06
Filed: 1959-01-23
Abstract: 911,767. Ventilating shoes. VAN RIJSWIJK, J. July 24, 1959 [Oct. 28, 1958], No. 25446/59. Class 17 (2). An insert sole 1 has a heel portion of elastic material with a compressible pumping chamber 3 and an air inlet, at the back of the sole, consisting of a short wide channel 5 with elastic walls, so that lifting of the heel of the wearer causes air to be drawn into the chamber through the inlet, whereas pressure of the heel closes the inlet and causes air to be pressed out of the chamber through a narrow protracted duct 9 to one or more outlets 8 near the front of the sole. As shown, sole 1 is formed of foam rubber &c. with a covering layer 2, and chamber 3 and cuts 9 &c. are formed as open channels in the undersurface of sole 1 and are closed by sole 4. Duct 9 connects with chamber 3 via a labyrinth of slots 10, 11, 12, 13, 14, 15 which prevent reverse flow of air, and with openings 8 via slot 7.
Patent GB-1055083-A (GB)
Title: Woven selvedges
IPC: D03C7/00
Filed: 1964-04-07
Abstract: 1,055,083. Leno-woven selvedges. CROMPTON & KNOWLES CORPORATION. April 7, 1964 Alec. 31, 1962], No. 2686/65. Divided out of 1,055,082. Heading D1K. A leno-woven selvedge has groups of two or more weft threads 38 and two pairs of selvedge warp threads 21:22, 23:24; the warp threads being so shed that one pair of warp threads is over a first group of weft threads and under an adjacent group of weft threads, whilst the other pair of warp threads is oppositely shed and, between each group of weft threads, each warp thread of a first pair passes once only between the threads of the other pair.
Patent GB-524313-A (GB)
Title: Improvements in or relating to welding screens, vizors, goggles or the like
IPC: A61F9/06
Filed: 1939-01-26
Abstract: 524,313. Compound glass. PATERSON, J. H., and MUREX WELDING PROCESSES, Ltd. Jan. 26, 1939, No. 2785. Addition to 449,328. [Class 140] [Also in Group XX] The screen of the parent Specification is modified by coating on the inner surface of one of both of the glass sheets which enclose the coloured celluloid or like layer a partly-transparent silver layer. This layer may be varnished, or the celluloid &c. layer may be stuck thereon.
Patent GB-486741-A (GB)
Title: Improvements in electrically-propelled amusement vehicles operating on conductive floors
IPC: A63G7/00
Filed: 1938-01-28
Abstract: 486,741. Amusement apparatus. HARRISON, C. H., and BRITISH MOTOR BOAT MANUFACTURING CO., Ltd. Jan. 28,1938, No. 2786. [Class 132 (i)] In electrically-propelled amusement vehicles operating on a floor composed of conductor strips spaced by insulation, a pair of current collecting brush arms 2 which bear on the floor, are separately pivoted to a fixed chassis member 1, and connected together by a pivoted link 6, one arm being coupled to a member 8 which moves with the steering mechanism of the vehicle. The connections of the link to the arms are spaced more widely than the connections of the latter to the chassis in order that the distance between the brushes 3 may be varied as the arms pivot.
Patent GB-588204-A (GB)
Title: Improvements connected with variable speed electric drives
IPC: H02P27/04
Filed: 1945-02-05
Abstract: 588,204. Electricity supply. SCHWARZ, B. Feb. 5, 1945, No. 2846. [Class 38 (iv)] [Also in Group XXXVII] Controlling frequency.-In a variable speedcontrol system for an induction or synchronous motor M making use of a frequency converter, FC taking power at normal supply frequency and converting it to variable frequency power for supply to the motor, the converter is driven by an auxiliary machine AM and has a wound rotor provided with a commutator C and sliprings SL, the motor M being connected to the slip-rings, whilst the commutator is connected to the normal supply through an induction regulator IR1, or other variable transformer. The auxiliary machine is preferably a commutator or other variable speed motor, speed control being effected by an induction regulator IR2, or the like, which is ganged with the regulator- IR1 so that simultaneous adjustment of the output frequency and voltage of the converter is effected by a single control wheel H. The ganging may be such as to provide any desired speed/torque characteristic of the drive and means may be provided for. automatically varying the speed of the auxiliary machine'in dependence upon the load of motor M. The auxiliary machine may be a D.C. motor which is fed from the normal A.C. supply through a rectifier. A stator winding may be provided on the converter to assist the auxiliary machine when acceleration or retardation of the converter is necessary. Instead of a variable speed auxiliary motor, a fixed speed or polechanging machine coupled to the converter by a variable speed gear may be used. Alternatively, the auxiliary machine may drive the converter at one or more fixed speeds, other speeds being obtained by running the converter as a self-driven machine, as described in Specification 557,112. In the case of a multi-motor drive, a single induction regulator may feed the commutators of a number of converters individually, supplying the motors or groups thereof.
Patent GB-1055513-A (GB)
Title: Improvements in and relating to bobbin-holders and the like on textile machines
IPC: B65H54/52
Filed: 1965-01-22
Abstract: 1,055,513. Bobbin cradle. ETABLISSEMENTS PAIN BOURGEAS S.A. Jan. 22, 1965 [Jan. 30, 1964], No. 2860/65. Heading D1J. A bobbin cradle of the kind in which a pair of arms 1 pivot about an axle 4 such that a take-up tube 6 or package thereon, is applied against a driving cylinder 8, under the action of at least the weight of the tube and any yarn thereon, includes spring means 81 that is so arranged as to produce a torque that is dependent upon the setting of the pivoted arms; namely one in which the torque is such that the arms are intially biased towards the driving cylinder 8 but as the package grows said torque is gradually reduced to zero and then caused to increase again but in the opposite direction to compensate at least for the increase in weight of the bobbin. A cam 62, clamped to the stationary axle 4, has an undulating surface against which a pivoted finger 76 is pressed by a spring 81. When spooling begins the arms are in the position illustrated and the pivoted finger 76 is located on a first portion 62a of the cam, this first portion sloping in a direction causing the arms to be biased towards the cylinder 8. When the bobbin has reached a certain diameter the finger 76 passes onto the apex 62b so that no swivelling torque is exerted on the arms and the bobbin is thus applied against the driving cylinder under the action of its own weight and the weight of the swivelling assembly. As the spooling proceeds, the pivoted finger 76 reaches the portion 62c of the cam so that a torque is created via the spring 81 in a direction opposite to that created by the weight of the spool and the swivelling assembly. When the pivoted finger 76 reaches the hollow d of the cam the spooling is completed and the lever 1 can be manually raised to the position 1b at which it is locked elastically by the finger 76 as it enters the hollow 62f of the cam. One of the pair of arms is biased towards the other so that a spool can be releasably inserted between said arms. The lever 1 is an extension of said biased arm.
Patent GB-1285144-A (GB)
Title: Ship-borne conveying apparatus
IPC: B64F1/12
Filed: 1970-01-21
Abstract: 1285144 Load conveying on the deck of a ship CANADA MINISTER OF NATIONAL DEFENCE 21 Jan 1970 [21 Jan 1969] 2917/70 Heading B7A [Also in Division B8] A helicopter is conveyed on the deck of a ship by apparatus comprising a load carrier 75 which is guided by wheels 87 along a rail 65 fixed to the deck of the ship and the carrier is positioned under the helicopter after it has landed so that a probe on the underside of the helicopter is locked in aperture 105 by plate 109. The helicopter is secured to the carrier at lugs 123A, 137A of hydraulic jacks 113, 115 and is then moved bodily over the deck by the carrier and guided by the rail. In the embodiment shown switch rail 63 gives a choice of two approaches to hangar 71.
Patent GB-265591-A (GB)
IPC: F22B27/06
Filed: 1927-02-02
Abstract: 265,591. Becker, B. Feb. 2, 1926, [Convention date]. Instantaneous generators.-Water is supplied, according to steam demand, into the ends of highly heated tubes 1, Fig. 1, containing helical .cores which compel the water to flow in thin streams along the inner surfaces of the tubes. The steam is taken through superheating coils 2 connected to a collector 3. The turns of the helical core 7, Fig. 3, increase in pitch towards the tube outlet. The tube is formed with an extension 10 fitted with a cover 12 to facilitate - the insertion and.removal of the core. Water may be introduced through a nozzle having a tapering helical core. The steam generator in one or more elements may be conducted to the feed inlets of the highly heated tubes of the other elements and may be led into the nozzles of feed injectors at the ends of the highly heated - tubes.
Patent GB-347741-A (GB)
Title: Improvements in or relating to television and like systems and apparatus
IPC: H04N3/12
Filed: 1930-01-29
Abstract: 347,741. Television receivers. BAIRD, J. L. and TELEVISION, Ltd., 133, Long Acre, London. Jan. 29, 1930, Nos. 3054 and 31203. Divided on 348,211. [Class 40 (iii).] Relates to circuits for television receivers comprising a screen composed of a bank of lamps or shutters 10, divided into groups. In one form of the invention each group 70, Fig. 1, has a switch 74 having each of its contacts connected to one pole of one lamp &c. in that group and a selector switch 90 has its contacts connected to the arm of each switching device, the other poles of all the lamps &c. being connected to a common return conductor. In order to cause a quick response of the lamps, the arm 94 of the switch 90 connects each group with a battery 95 prior to connecting with the modulator 92. In a modified arrangement, a switching device 109, Fig. 2, has each contact connected to one pole of one lamp &c. in each group 70, and a commutator 101 connects all the other poles of all the lamps &c. in each group successively to a common return conductor. The modulator 106 is preferably in the return conductor. In a further modification, the commutator of Fig. 2 is replaced by modulating devices 118, each of which is fed from a separate channel of communication, and the groups 110 are illuminated simultaneously. Specifications 222,604, 291,121, 302,187, 320,639 and 336,655, [all in Class 40 (iii), Telegraphs, Electric], and 347,254 are referred to.
Patent GB-177911-A (GB)
Title: Improvements in and relating to indicating instruments
IPC: G01R1/02
Filed: 1921-01-25
Abstract: 177,911. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 25, 1921. Manual adjustment of zero; modifying scale of readings.-In an instrument having a flat spiral control spring for the movable or terminal element the outer end of the spring is threaded through apertures in an angularly adjustable member for the purpose of adjusting the initial torque of the spring and the zero position of the pointer. In the instrument shown, the movable element 15 which is pivoted in a screw 17 in a stationary member 18 carries a pointer 16 and has attached to it one end of a phospher-bronze or steel spring 21 the other end of which is threaded through apertures in the bent portion 23 of a pivoted member 22 and through which it can be pulled for adjustment. The member 22 is pivoted on a bush 30 concentrically with the element 15 and has a slot 29 in which works a crank-pin 24 on a disc 25 rotatable by means of a screw-headed rod 26 to effect a fine adjustment of the member 22. The rod 26 frictionally engages the cover plate 13 by means of a washer 27 and spring 28.
Patent GB-1385242-A (GB)
Title: Implements for uprooting trees
IPC: A01G23/06
Filed: 1972-01-22
Abstract: 1385242 Tree felling M W SHAW (STEELWORKERS) LTD 6 Sept 1972 [22 Jan 1972] 3131/72 Heading A1E [Also in division B8] Apparatus for mounting on the three point linkage of a tractor for up-rooting trees comprises a main frame 10 with outboard retractable feet 16 and a subframe 24 mounted by parallel linkages 26 to the main frame 10 and movable relative thereto by hydraulic rams 28. A pair of jaws 40 are pivotally mounted on the subframe and are movable to grip a tree by hydraulic rams 44. In a further embodiment Fig. 4 (not shown) the jaws are replaced by a single U-shaped jaw (52) provided with a tensionable chain (54) for fastening around the tree. In a still further embodiment Fig. 5 (not shown) a pair of arms (60), movable by hydraulic rams (44), are arranged to pass beneath the tree and sever the roots thereof. The tree may then be carried away by the tractor.
Patent GB-289953-A (GB)
Title: Improvements appertaining to stalls for cattle and other animals
IPC: A01K1/00
Filed: 1927-02-04
Abstract: 289,953. Smith, J. Feb. 4, 1927. Cattle stalls.-Temporary cattle stalls are made readily detachable for show or like purposes by bolting pairs of vertical frame members 3, 5, 7 to stakes m driven into the ground. Pairs of horizontal members a, b. c, are joined to the vertical members by brackets d secured to the verticals and provided with sockets f<2> and side projections f<3> to engage spigotted attachments f on the horizontals, Fig. 3. The securing bolts m<1> for the vertical members have eyes fpr the stakes m and wing nuts m<2>. The rings h of the cattle-ties k are slidably carried on rods g each secured to a pair of horizontal members by bolts, such as m<1>. Feeding or drinking appliances may be mounted on the stalls.
Patent GB-436068-A (GB)
Title: Improvements in or relating to gun cockpits, turrets and the like
IPC: B64D7/02
Filed: 1933-02-02
Abstract: 436,068. Aircraft gun turrets. BOULTON & PAUL, Ltd., Riverside Works, NORTH, J. D., Hill House, Eaton Hill, and HUGHES, H. A., Westfield, Plumstead Road, all in Norwich. Feb. 2, 1933, No. 3203. [Class 92 (i)] A transparent gun cockpit or turret for aircraft or other fast moving vehicles comprises a dome-shaped cover 12 having a vertical gun-slot 13, the cover being normally sunk within the body of the vehicle, but being adapted to be raised into the airstream to act as a wind shield for the gunner when the gun is in action. In the form shown, the dome is trainably mounted on a cockpit frame 10, 16 vertically slidable on four pillars 18 under the action of fluidpressure piston-and-cylinder devices 19, 21 operated by air pressure admitted by a cock 25 beneath a floating piston 24. The gun mounting shown in the Specification is of the " ring " type fitted with valve devices on the U-shaped elevating-arm for controlling a servomotor which trains the dome by rotating a worm engaging a fixed worm ring on the frame 16.