baber/WOPTO huggingface dataset:
Patent GB-197581-A (GB)
Title: Improvements in and relating to paper-bags
IPC: B31B23/00
Filed: 1922-07-04
Abstract: 197,581. Hartmann, C. W. July 4, 1922. Paper bags, making; paper bags.-In flat bags which are formed by the lengthwise folding of one or both of the component pieces 6, 7, Fig. 2, the bottom, which is formed by pasting together the two components by a cross paste stripe 5, is cut some distance below the stripe. The edges of the web of paper 6, Fig. 3, are pasted continuously by a pasting roll 10, and cross stripes of paste are applied to the web 7 at suitable intervals by a roll 11. The webs are united at the roller 12 and, after folding is carried out by known mechanism at 13, the webs pass between a roll 14 and an endless pressure belt 15. The actuation of the severing device 16 is timed so that the cut is below the cross stripe.
Patent GB-241860-A (GB)
Title: Improvements in or relating to asynchronous phase converters
IPC: B60L9/28
Filed: 1925-07-17
Abstract: 241,860. Siemens - Schuckertwerke Ges. Oct. 27, 1924, [Convention date]. Rotary transformers.-A phase converter of asynchronous type has a polyphase rotor excited with current of the slip frequency of the converter by means of a separately-excited polyphase machine giving power-factor correction. The application is shown in Fig. 1 to a single-phase fine 1 from which the converter 5 supplies threephase current to cascaded motors 53, 54 on an electric locomotive. The converter stator has a single-phase line coil 3 and a three-phase winding 6, 7, 8 placed in slots 57, 59, Fig. 2, joined by magnetic leakage gaps 58. The exciting machine 60 has a drum winding supplied on one side with three-phase power from the converter through sliprings 28 and an adjustable transformer 33 and connected on the other side through a ccmmutator 27, stator coils 22 and an adjustable resistance 16 to the slip rings 12 of the three-phase rotor winding 9 of the converter. The converter rotor may also carry a damping winding 15 and the magnitude and phase of the currents supplied by the transformer 33 to the exciter 60 may be further controlled by the use of a current transformer. For starting the converter, the two windings 7, 8 are used as artificial phase windings closed through a contact 19 and an inductive resistance group 20, 21. The contact 19 and the three contacts at 16 are moved jointly at starting and at a certain speed the contact 19 alone opens its circuit. When the converter is up to speed its magnetizing current, together with that for the motors 53, 54, is supplied entirely by the con. verter group when the proper setting is given to the transformer 33. The effect of the leakage paths 58 between the windings 3 and 6, 7, 8 is to increase the voltage at the terminals of the motors 53, 54 as the load increases. The polyphase exciter may, alternatively, consist of a non-compensated frequency converter or it may be driven by a synchronous machine and be connected to the phase converter only in cascade and not mechanically.
Patent GB-138817-A (GB)
Title: Improvements in milking machines
IPC: A01J5/02
Filed: 1919-07-23
Abstract: 138,817. Hõgg, C. J. J. July 23, 1919. Cow-milkers.-Relates to milking-machines of the type in which teat-presses are operated by means of wires passing through flexible tubes, and consists in a particular construction of teat press. The press members 1 are connected at about the centre by pivots 23 to links 25 mounted in a frame 24. A spring 26 is arranged between the lower ends of the members 1 so that when the press is closed on the teat by the wire 3 and tube 2 the root of the teat is first operated on, and, as the lower ends of the press gradually approach, the pressure of the root increases. The pivots 23 are connected by means for equalizing tne movement of the plates 1, as by links connected by a pin which slides in a vertical slot on the frame 34. The presses are attached tn arms 30 by cranked links 32, 33, to permit adjustment. Four wires and tubes are connected to one operating device through equalizing levers 18, 20, the wires being connected through springs 22. The device is operated by a reciprocating bar 10 which communicates oppcsite vertical motion to the arms 15, 16 through links 6, 7.
Patent GB-613625-A (GB)
Title: Improvements relating to pipes of asbestos-cement or the like
IPC: B28B21/74
Filed: 1946-06-20
Abstract: 613,625. Asbestos-cement pipes. TURNERS ASBESTOS CEMENT CO., Ltd. (Soc. Anon. Eternit Pietra Artificiale). June 20, 1946, No. 18613. [Class 99 (ii)] [Also in Group V] A socketed pipe of asbestos-cement, or like material composed of fibre and a hydraulic binder, is made by forming the pipe and socket separately and afterwards uniting them while both are in the plastic state. A still plastic pipe 9 is formed on a mandrel 10 and then put in the apparatus shown in Fig. 1, which resembles a lathe and which carries slidable frames 5, 6. A support 2 on the apparatus constitutes a former for the socket end of the pipe and initially carries a still plastic socket pipe 13, Fig. 3. The mandrel 10 rests on an extension 11 of the support. By moving the frame 5 the pipe 9 is moved axially into the position shown in Fig. 1 where the socket 13 overlaps the end of pipe 9. The frame 6 is now moved to bring a roller 8 opposite the overlapping parts of pipes 9, 13. The mandrel 10 is rotated through a chuck 1, the roller 8 rotated by a motor 14, and a handle 20 pulled downwards to press the roller into contact with the overlapping parts. These parts, are united and a pipe with an integral socket (Fig. 5) produced.
Patent GB-220147-A (GB)
Title: Improvements in spinning swivels for fishing tackle, applicable for other purposes
IPC: A01K91/03
Filed: 1923-07-19
Abstract: 220,147. Allcock, J. H., and Allcock, H. W. July 19, 1923. Swivels.-In swivels for fishing tackle &c. of the kind wherein a pair of loop members 1., 2 are connected to an intermediate member so as to be relatively rotatable, the intermediate member is formed as a single ball and socket 9, 6, permitting a swivelling action when the members 1, 2 are out of alignment. The mouth of the socket may be circular as shown in Fig. 2, or elongated as shown at 14 in Fig. 5 to allow the ball 11 to slide in it.
Patent GB-1038997-A (GB)
Title: Locks
Inventor: KELLER ERNST
IPC: E05B19/00
Filed: 1963-05-10
Abstract: 1,038,997. Locks. KESO A.G. May 10, 1963, No. 18646/63. Heading E2A. In a cylinder-type lock the key slot 31 is of substantially rhomboidal cross-section and tumbler pins are disposed in bores in the cylinder 4 which lie along two angularly spaced radial planes with respect to the longitudinal axis of the cylinder and are perpendicular to one or other of a pair of adjacent sides of the slot. As shown, the lock includes a bolt 3 which is movable into locking and unlocking positions by means of a toothed ring 8 which is carried by the cylinder 4 eccentrically mounted on a cylinder secured in a lock case 1, teeth 9 and 10 on the ring 8 being engageable with notches 12 and 13 on the bolt 3 in the retracted and projected positions thereof respectively. The bolt is indexed in these positions by a spring-loaded ball 16. The key is provided with recesses 30, Fig. 2 (not shown), with which the tumbler pins co-operate and the number of recesses may be varied in a number of keys for several locks, to provide master and servant-key operations. More than two rows of pins may be provided.
Patent GB-1060402-A (GB)
Title: Optical filters for signalling or indicating lights
IPC: G02B5/22
Filed: 1964-05-05
Abstract: 1,060,402. Colour filters for lamps. P. CIBIE. May 5, 1964 [Aug. 6, 1963], No. 18663/64. Heading F4R. [Also in Division G2] A filter especially for use for signalling and indicating lights, e.g. on motor vehicles, comprises a single piece of homogeneous uniformly coloured material 1 divided into zones 1a, 1b of differing thickness so that the light from the two zones is differently coloured when used with a source of white light. In an example, the filter transmits about 100% in the red and 30% in the yellow, the thicknesses of the two zones being in the ratio 1 : 3 so that the first zone passes orange light and the thicker zone red light.
Patent GB-595897-A (GB)
Title: Improvements in feeding arrangements for machine tools
IPC: B23Q15/00
Filed: 1945-07-21
Abstract: 595,897. Control of motors. CROOKS, E., and d METROPOLITAN - VICKERS ELECTRICAL CO., Ltd., July 21, 1945, No. 18735. [Class 38(iii)] Travelling to predetermined limits.-An electric motor for effecting tool-feed motion in a machine tool is adapted to be operated or intermittently operated for periods which are determined by a controlled arcdischarge device which is normally non- conductive but is rendered conductive for a predetermined period following closure of a switch in response to the attainment of a predetermined relation between the positions of the tool and the work during a cutting or return-stroke. A three-phase squirrel cage induction motor M is connected to an alternating current supply through contacts f of a relay F. The motor is braked by the application of a direct current to the stator windings from a source S2 through contacts of a relay B which is controlled through a contact t of a timedelay relay T. During a normal working stroke a condenser C2 is charged from a transformer V through a rectifier Rff, and a grid-controlled arc-discharge valve Th is negatively biassed to maintain the starting relay F and a holding coil of a relay IR deenergised. When a switch FS is closed at one point during a cycle of operation of the machine, a pick-up coil IRP of the relay IR is energised to open contacts ir and ir1 and close contact ir2. The condenser C2 is discharged through resistors R4, R5, R6, and a portion of a potentiometer P, and the valve Th is positively biassed to energise the coils of relays F and IR. The motor is connected to the alternating current supply and contacts f3 of the relay F close to enargise the relay T. At the end of a predetermined period the valve Th is cut off due to discharge of the condenser C2 and the motor is disconnected from the alternating current supply, the contacts f2 being closed to energise the coil B which effects dynamic braking until the contact t opens. The control circuit is restored to its normal condition and the condenser C2 is recharged in preparation for another tool-feed movement. A switch RF enables the tool-feed movement to be repeated independently of the operation of the switch FS. A pushbutton Pb may be operated to by-pass the valve Th through a rectifier Rf for continuous operation of the tool-feed motor.
Patent GB-682631-A (GB)
Title: Improvements in or relating to spray devices
IPC: B05B9/08
Filed: 1950-07-27
Abstract: 682,631. Spray-producers. GRAHAM, T. T. July 27, 1950 [Aug. 10, 1949], No. 18782/50. Class 69 (iii). A spray liquid container 10 includes a tubular housing 13 for a pressure gas capsule C, which is pierced by a pin 26 on a screwed plug 23 to put the liquid under pressure and to force it through an eduction tube 18. A portion of the pressure gas enters the tube 18 at 21 and mixes with the liquid in a chamber 43 before both are ejected from a valve controlled outlet orifice 30. The valve comprises a ball 35 carried by a cylindrical plunger 36 normally held in the forward or closed position by a spring 38, and is manually operated by a pivoted lever 40. An orifice 17 controls the quantity of liquid supplied to the container during its filling in the inverted position through the tubular housing. The pin 26 includes an overlapping prong 26b and a longitudinal groove 26c.
Patent GB-483261-A (GB)
Title: Improvements in forks for single-wheeled trailers for motor cars and other road vehicles
IPC: B62D53/08
Filed: 1937-07-08
Abstract: 483,261. Single wheel arrangements. GAD, H. July 8, 1937, No. 19012. Convention date, July 8, 1936. Addition to 413,527. [Class 108 (ii)] The mounting of the wheel described in the parent Specification is modified by forming the branches of the fork of the supporting wheel as leaf springs The tubular frame trailer a is adapted tc be clamped or secured to the towing vehicle by means of hooks b carried by levers having supporting castors c as shown, while the rear end of the trailer is supported by a wheel fork comprising a vertical pivot d, and laminated spring arms f carrying the road wheel e. Change of direction of the towing vehicle tends to rotate the wheel fork about its pivot d and the resilient arms f tend to absorb the lateral forces which would otherwise be imposed on the fork bearing.
Patent GB-1039172-A (GB)
Title: Flexible core assembly for moulding propellants
IPC: B29C33/50
Filed: 1963-05-14
Abstract: 1,039,172. Rocket propellants. THIOKOL CHEMICAL CORPORATION. May 14, 1963 [May 15, 1962], No. 19075/63. Heading F3A. [Also in Division B5] A core assembly for use in forming a cavity in the cast propellent grain of a rocket motor has a rigid section together with flexible segments which are withdrawn after casting through passages formed by the rigid section of the assembly. A rigid core member 11 (Figs. 1 and 2, not shown) comprises radially disposed webs 12, 13, 14 whose inner ends 24 are shaped to conform to the ellipsoidal end 20 of a motor casing 21 and each web having a rigid wing member 15 terminating just short of the end 20. Along each wing 15 are two longitudinally disposed passages 16, 17 carrying pulling cables 18, 19 attached to flexible bulb-shaped segments 27 which are moulded to conform to the shaped ends 24 of the webs 12, 13, 14 and to form continuations of the rigid wings 15. The flexible segments 27 have ends 28 shaped so that they come together to conform to the curvature of the end 20. The assembled core is placed in the motor casing and the propellant cast and cured. The rigid section 11 is removed leaving the flexible bull-shaped segments 27 to be pulled out by the cables 18, 19 along the passages left by the rigid section.
Patent GB-1058513-A (GB)
Title: Improvements in or relating to a differential transmission
IPC: F16H48/22
Filed: 1965-05-06
Abstract: 1,058,513. Differential gear. DANA CORPORATION. May 6, 1965 [July 10, 1964], No. 19239/65. Heading F2D. In a limited slip planetary bevel gear differential having at least one or both output side wheels 38, 40 axially movable and clutched to an input casing 12 by interleaved friction discs 78, 80, the clutch discs are normally engaged, to resist differential action, through pressure plates 82 against end walls 88 of the housing by coil springs 96 seated upon and acting through part-cylindrical members 102 which are piloted in keyways 100 in the housing and carry in a hollow outer portion 104b, to prevent wear in the housing, key portions 86, 94 of the outer friction discs 80 and pressure plate 82 respectively, the springs 96 acting to pre-load each clutch independent of the gear train avoiding adverse meshing thereof, the clutch discs being further engaged, as the input torque increases, by outward thrust on the side wheels 38, 40 by gear tooth pressure.
Patent GB-269033-A (GB)
Title: Improvement relating to valve gear for internal combustion engines
IPC: F01L1/30
Filed: 1926-08-04
Abstract: 269,033. Newson, S. C., and Laystall Motor Engineering Works, Ltd. Aug. 4, 1926. Valves; valve gear. -The valve i is acted on by a leaf spring a pivoted at c and provided with a stud or roller e which, during the opening of the valve by a cam m and lever n, enters a recess o formed in the cam so as to relieve the spring pressure during opening.
Patent GB-1434345-A (GB)
Title: Rotational moulding
IPC: B22D13/00
Filed: 1972-04-26
Abstract: 1434345 Rotational casting A H QURAISHI 14 April 1973 [26 April 1972] 19301/73 Heading C1M [Also in Divisions B3 and B5] In a rotational moulding process for plastics, metal or glass a mould cavity is charged with a liquid or molten material (which may initially be in powder form) and the viscosity of which is increased whilst the mould is subjected to a composite motion about mutually inclined axes, neither of which is horizontal or vertical ; motion about each axis may be rotary or oscillatory or a combination thereof, at least one of the rates of motion being decreased progressively as the viscosity of the material increases and until the material solidifies. During the process the mould may be heated and pressurized or under vacuum and the inclination of at least one of the axes may be varied. The angle between the axes may be maintained at substantially 90 degrees and the inclination of one axis may be 45 degrees to the horizontal. Moulds 5 are rotated or oscillated about an axis 3 whilst simultaneously being rotated or intermittently rotated about an axis 4. The drives to the two mutually inclined shafts about which the moulds rotate may be provided by electric motors.
Patent GB-440440-A (GB)
Title: Improvements in or relating to electrically energised clocks
IPC: G04C13/06
Filed: 1934-06-29
Abstract: 440,440. Electric clocks. TELEPHONE MANUFACTURING CO., Ltd., Martell Road, West Dulwich, and SIMONS, M., 40, Falkland Park Avenue, South Norwood, both in London. June 29, 1934, No. 19304. [Class 139] Electric clock mechanism includes in combination a mains driven motor (stator 5, 6 and rotor on spindle 9) to actuate the clock mechanism and a mercury switch 35 or 51 which is rocked bodily to control impulses in an output circuit. The output circuit is preferably fed also from the mains and may operate secondary clocks or flashing signs. The rotor spindle 9 drives a worm train 13, 14, 18, 19, 22, 23, 24 ; the spindle 24 carrying the minute hand. A cam 30 on spindle 19 has a plurality of cam rises coacting with a roller 31 on an extension 32 of a pair of arms 33 pivoted at 36. Arms 33 are integral with a member 34 carrying the mercury switch 35. Once during every half-minute a cam-rise rocks the switch sharply to close the circuit 38, leaves the circuit closed for five to ten seconds, and then sharply rocks the switch back. A spring 39 also controls arms 33. To actuate the second switch 51, the spindle 14 carries an eccentrically mounted disc 41 connected by a screw 43 to an overlying disc 42. For adjustment, a pin 44 in disc 41 passes through an arcuate slot 45 in disc 42. A crank pin 46 on disc 42 is connected by a link 47 to a pin 48 on a member 49, which latter is secured to a pivoted rocker 50 by a screw 56 and a second screw 57 passing through a slot 58 in member 49 for adjustment of throw. The rocker 50 consists of two V-shaped members which are pivoted at 53 and carry the mercury switch 51. In one position, circuit 59, 60 is closed and in the other, circuit 59, 61 is closed. Specifications 396,793 and 440,439 are referred to.
Patent GB-596883-A (GB)
Title: Improvements in or relating to lavatory seats
IPC: A47K13/02
Filed: 1945-07-27
Abstract: 596,883. Closet seats. EVANS, W. July 27, 1945, No. 19310. [Class 26] [Also in Group XXV] A closet seat stamped and press-moulded out of fabric-reinforced plastic material is shaped to rest on the lavatory pan or bowl and have inner and outer peripheral flanges 10, 11 merging in smooth curves with the uppermost outer surface 14 of the seat, and to provide an uninterrupted smooth channel on the underside adapted to encompass the rim of the pan or bowl. The width across the flanges is greater than that of the rim of the pan to provide flexibility, while the outer flange at the rear is interrupted and flattened and shaped with two extending ears 18 which receive hinge-pin supports 19. The hinge-pin 21 attached to supports 19 is threaded through eye-bolts 23 which are adjustable to different spacings of the holes in the rear extension 16 of the pan. A lid 26 of the same material may also be mounted on the same hinge-pin 21 by means of drilled metal anglepieces 27. Spacing sleeves 29 of appropriate length are carried on the hinge-pin between eye-bolts 23 and angle-pieces 27. Specification 585,602, [Group XVII], is referred to.
Patent GB-372151-A (GB)
Title: Improvements in anti-dazzle devices for motor vehicle lamps
IPC: F21V14/04
Filed: 1931-07-04
Abstract: 372,151. Vehicle lamps. FRœCHTENICHT, H., 54, Gosselstrasse, Bremen, Germany. July 4, 1931, No. 19347. [Class 75 (iv).] Lantern screens.-A double filament motor vehicle lamp has means for moving a pivoted antidazzle screen automatically into and out of operation upon the main filament being switched on and off. In the form shown in Fig. 2, the screen b, which is hinged at c, has a tail extension b<1> on which a catch e acts to maintain the screen normally inoperative. The circuit g of the main filament has a shunt circuit h containing a magnet f so that, on closing the circuit, the catch e is operated against a spring e<1>, and releases the screen. A second magnet d restores the screen to its normal position. Two switch arms i, k, connected by a rod m, close the circuit a<3> of the small filament, and the circuits g, h, when moving to successive positions in one direction. In moving in the opposite direction, the switch arms break the circuits g, h, and make the circuit of the magnet d. A single switch arm may operate all the circuits. In another form the circuits g, h are separate and closed successively, the switch arm closing the circuit h before the circuit g. In the form of Fig. 5, the catch e, which is in the form of a bell-crank lever, is operated by the core o<1> of a solenoid having a pin moving in a slot p in the crank. When the extension b<1> is released, a pin r taking into a slot q in the core o<1> is engaged by the latter to lower the screen. The screen is restored to its normal position by a second magnet as before.
Patent GB-337362-A (GB)
Title: Improvements in or relating to furnaces or apparatus for the heat treatment of metals and the like
IPC: C21D9/70
Filed: 1929-06-25
Abstract: 337,362. Smallwood, A., and Fallon, J. June 25, 1929. Metal-heating furnaces; muffle furnaces.-In a furnace of the kind comprising two chambers heated from the same source, the high temperature or primary chamber a<3> being adapted for example for the heating of billets, and the low temperature or secondary chamber h<1> for sheets rolled therefrom, the primary chamber is made in the form of a muffle so that the opening of the working-doors will not affect the heating of the secondary chamber. Preferably the sheet heating chambers h<1> are associated with a continuously-operated billet heating chamber a<3>, which is extended beyond the chambers h so that its discharge door d may face in the same direction as the working-doors k of the sheet heating chambers. The furnace is heated by burners b, and the waste gases pass to the stack flue through damper-controlled ports c at the front corners of the chamber h<1>. Ports are preferably provided by which heating gases from the chamber around the muffle may be passed direct to the stack. Non-oxidizing gas may be supplied to the muffle in the manner described in Specification 334,965. According to the Provisional Specification the primary chamber may be of the reverberatory type with ports in the floor, through which gases may be delivered to supply additional heat to the lower part of the charge.
Patent GB-827102-A (GB)
Title: Improved refrigerator cabinet
IPC: F25D25/02
Filed: 1958-06-19
Abstract: 827,102. Shelves. GENERAL MOTORS CORPORATION. June 19, 1958 [July 19, 1957], No. 19612/58. Class 52(1) Refrigerator shelves 30 carried by hubs 44 vertically adjustable on a screwthreaded pillar 41 are slidably displaceable horizontally in relation to the pillar so that when drawn forward they can be rotated to enable the vertical adjustment to be effected. The shelves are constructed with a central bar 36 slotted at 37 to permit sliding and have spaced grooved rails 35 in which the ends of arms 46 on the hubs 44 can slide. The shelf surface may be a wire grid or may consist of detachable slotted metal trays 51, Fig. 7, with channelled rims to fit on the border frame 53.