baber/WOPTO huggingface dataset:
Patent GB-612515-A (GB)
Title: Safety devices for the protection of superheaters of steam generators and arrangements for remote control thereof
IPC: F22G3/00
Filed: 1945-08-14
Abstract: 612,515. Fluid - pressure servomotor - control systems. SOC. ANON. DES ETABLISSEMENTS J. COCARD. Aug. 14, 1945, No. 20882. Convention date, Sept. 18, 1942. [Class 135] [Also in Group XIII] Safety installations for the protection of superheaters characterised by a control unit, connecting the manifold of the superheater with the atmosphere, which when automatically opened allows steam produced by the boiler to flow through the superheater thereby maintaining the superheater at its normal temperature. The control unit consists of a main discharge valve, Fig. 5, controlled by a pilot valve, Fig. 3, adjusted to function at a pressure a little less than the ruling pressure of the safety valves mounted on the boiler. The pressure existing inside the steam boiler acts through the connecting pipe 36 on the piston 9 of the pilot valve. A pipe 12 communicates the inside face of the flap valve 8, of the pilot valve, with the chamber 6 situated behind the principal valve 4. When the pressure is sufficiently great the flap valve 8, of the pilot valve, leaves its seat 10 and compressing the spring 11 allows steam to escape through the pipe 12 and the holes 32 thereby causing a reduction of pressure in the chamber 6. This allows the principal valve 4 to open and steam to escape as indicated by the arrow F40. The lever 22 enables the flap 8 to be operated remotely by hand and the main discharge valve can be closed manually. A distributor (Fig. 6, not shown) enables the feeding of steam to the pilot valve to be discontinued in order that an open discharge valve may be automatically closed and, in addition, enables the steam in the chamber 6 to be exhausted in order that a closed discharge valve may automatically be opened. The pilot valve may also be automatically controlled by the functioning of the safety valve of the boiler. For this a tube has one end inserted in the escape box of the safety valve on the boiler, in the form of a tube open to the rush of steam, and the other end connected to a cylinder fitted above the cylinder 30 of the pilot valve in such a manner that if the boiler safety valve lifts before the main discharge valve, the escaping steam removed by the tube displaces a piston in the above-mentioned cylinder and causes the main discharge valve to open.
Patent GB-1376275-A (GB)
Title: Lifting device for vehicles
IPC: B66F7/24
Filed: 1973-05-02
Abstract: 1376275 Vehicle lift A S HUNTER 2 May 1973 [24 May 1972] 20892/73 Heading B8H Vehicle lift comprises a frame with a pair of wheel support tracks 14 and a base formed in two sections 5, 6 which meet at an obtuse angle or a pivot point 7. In operation a vehicle is driven up the tracks 14 where upon the frame pivots about the point 7. Shock absorbers 9 are provided on opposite sides of the pivot point to engage the ground before the associated base engages the ground. Slidable platforms 10 are positioned over the portion 6 upon which jacks may be placed to lift the vehicle off of the tracks. Further platforms (12), Fig. 2 (not shown), are releasably secured to the frame to provide access for mechanics.
Patent GB-354030-A (GB)
Title: Improvements in and relating to cameras
IPC: G03B33/00
Filed: 1930-07-11
Abstract: 354,030. Photographic cameras ; colour photography. CROAD, A. K., 70, Chancery Lane, London.-(Varney, L. E. ; 60, East 42nd Street, New York, U.S.A.) July 11, 1930, No. 20997. [Classes 98 (i) and 98 (ii).] In a plate camera, the plate carriers are moved collectively from the loading position into position ready for exposure and returned individually into the loading position. In a camera for colour photography according to the invention the change of plate is effected by a release 26, Fig. 5. The plateholders 61, 62, 63 are mounted on pivoted arms 70, 77, 88, springs tending to swing them from exposure position to the position for loading, and are held in exposure position by spring catches engaging projections 75, 110, 111 on the three plateholders. Operation of the release 26 causes the spring catches to release the plateholders in turn. The plates are contained in metal sheaths having a covering slide which is withdrawn when the sheath has been loaded into the plateholder, means being provided to lock the plates therein. A focusing screen 101 is also mounted inside the camera on a system of levers 98, 105. The shutter is operated alternately with the plate change by a second release 25, Fig. 13, the release also effecting the change of colour screen. The colour screen disc 38 is driven by a spring, fingers 41 engaging with a latch 42 to prevent its rotation. The latch bears a trigger piece 46 having a cam surface past which a lever 44 on the wire release 25 slides in its forward movement, a lug 52 on the lever 44 operating the shutter lever 33. On its return the lever 44 bears on the cam surface of the trigger 46 momentarily disengaging the latch 42 from the finger 41. The disc 38 then rotates through 90‹ until stopped by the latch 42 engaging the next finger. The releases 25, 26 are coupled for simultaneous operation.
Patent GB-683375-A (GB)
Title: Improvements relating to windshield wipers
IPC: B60S1/38
Filed: 1951-09-06
Abstract: 683,375. Windscreen cleaners. OISHEI, J. R. Sept. 6, 1951 [Nov. 24, 1950], No. 21093/51. Class 138 (i). A flexible backing 7, Fig. 2, for an elongate flexible wiper body 1 having a retaining bead 3 joined to the body by a reduced neck 4, comprises a one piece stamping of flat metal strip with a longitudinally extending neck-receiving slot 8 terminating short of its opposite ends and having an enlarged entrance opening 9, Fig. 3, permitting the threading engagement of the body therewith. The body 1 is assembled on the backing strip by passing the bead 3 through the opening 9 so that the neck 4 can engage in the slot 8. The length of the major portion of the slot is such that the body may be compressed lengthwise therein and thereafter released to permit it to expand across the opening 9 into the slot portion 8'. The edges of the strip are slidably engaged by jaws 17 on the ends of secondary holders 16 rockable on the ends of a primary holder connected to the wiper arm. The wiper blade is secured in position by one jaw 17<SP>1</SP> interlocking with a recess 18 in one edge of the strip.
Patent GB-1299280-A (GB)
Title: A clock
IPC: G04B19/14
Filed: 1970-05-01
Abstract: 1299280 Clocks KIENZLE UHRENFABRIKEN GmbH 1 May 1970 [2 May 1969(2)] 21134/70 Heading G3T An electric clock for a car is sealed against the entry of dust and the emission of noise by resilient supports for its mechanism 1 which is enclosed between a mounting plate 6 and a plastics cover 5. A mechanism back plate 2 carries a terminal pin 3 with a soft resilient sealing ring 4 which is compressed between the plate 2 and the cover 5. The back plate 2 also carries pillars whose front ends 9 extend into the mounting plate 6 which is attached to the cover 5 by press-stud connectors or by pins 7 which are integral with the cover 5 and are distorted after assembly. The attachment of the pillar ends 9 may be through resilient conical buffers 8 seated in corresponding bores in the mounting plate 6, or the latter may itself be made of resilient material. A dial 15 is centred by a boss 16 on the mounting plate 6 and is retained by lips 14 on projections 13 of the cover 5. A further boss 12 on the mounting plate 6 forms a bearing for a setting spindle 11.
Patent GB-649855-A (GB)
Title: Improvements in or relating to moulded structural members and methods of forming thesame
IPC: B29C39/02
Filed: 1948-08-12
Abstract: The preferred material for an aeroplane wing is magnesium base alloy, e.g. one containing Al. 7.5 to 8.5 per cent, Mn. 0.2 to 0.4, Zn. 0.2 to 0.6, Si. up to 0.3, Cu. up to 0.5, Ni. up to 0.005, Fe. up to 0.002 and impurities 0.03 or a similar alloy containing 9.2 to 9.8 per cent of Al.
Patent GB-1410885-A (GB)
Title: Vehicle seat occupant restraint unit
IPC: B60R22/04
Filed: 1973-05-04
Abstract: 1410885 Vehicle safety harness GENERAL MOTORS CORP 4 May 1973 [15 May 1972] 21305/73 Heading A3V In a motor vehicle having an occupant restraint unit which is effective when a door is closed a pulley arrangement 50 rotatably mounted on either the vehicle door or body has first and second pulley portions 54, 52, a first flexible cable 82 extending from the first pulley portion 54 to the vehicle body or door respectively to thereby rotate the pulley arrangement as the door is opened, these being a second cable 62 extending from the second pulley portion 52 to an attachment portion 78 of the restraint unit so as to wind on this second pulley portion 52 as the pulley is rotated in response to door opening. In a preferred embodiment the restraint unit comprises a lap and diagonal belt system 32, 44, one end of belt 44 being secured to a retractor 46 which may be inertia responsive or may be locked in accordance with latching of door lock 48. As shown in Fig 2 the pulley arrangement 50 is mounted on the door and the pulley portions 52, 54 are splined to a common shaft 56 rotatably supported in brackets 58, 60. A spring return unit 80, Fig 2, biasses shaft 56 to the position in which cable 62 is unwound from pulley 52. Thus as the door is opened cable 82, which is wound round pulley 84 and attached to a portion 90 of the vehicle body, unwinds from pulley 54 and drives pulley 52 counterclockwise such that cable 62 is first wound on its outer arcuate portion 68 and then on the inner spiralling portion 70. Consequently attachment portion 78 is pulled forwardly as this rotation occurs and the belt arrangement is pulled forwardly. It is envisaged that the pulley arrangement 50 be mounted on the vehicle body to provide actuation of the belt arrangement in a reverse manner.
Patent GB-517145-A (GB)
Title: Improvements in and relating to prepayment mechanisms
IPC: G07F15/08
Filed: 1938-07-19
Abstract: 517,145. Prepayment mechanism for meters. ALDER & MACKAY, Ltd., and PEET, A. July 19, 1938, No. 21473. [Class 27] Price-changing mechanism.-In a prepayment meter having means for automatically changing the price of commodity after stated quantities have been consumed, two coin entry slots are rendered operative and inoperative respectively while the position of the price-change plate is unchanged. As applied to a prepayment gas meter having coin-pocket mechanism as described in Specification 224,143, [Class 27], the price change plate 2, Fig. 1, has two coin entry slots 5, 6 for preferential and normal tariffs respectively, the slot 5 being normally closed by a shutter 3 which is held in that position by a coiled spring attached to the shutter and to an arm 8 pivoted to the back of the plate 2. The shutter is located between the plate 2 and the coin pocket carrier plate 4 Fig. 4, being loose on the spindle of the plate 4. It has a gap 14 of width equal to the distance between the slots 5, 6, plus the width of one slot. On the front of the plate 4 is a rack 12 meshing with a pinion 29, which is rigid with a ratchet wheel 22, Fig. 2, on the rear of the plate. The rack has a ledge 32 which during normal tariff periods covers a gap 33 in raised portions 17 of the plate 4 and engages a stop 7 on the back of' the price change plate 2, to positionthe coin pocket opposite the slot 6. Each coin as it is inserted depresses the base 20 of the coin-pocket and the base through a lateral pin 25 engaging between 'two pins 26, 27a, on a lever 27, causes a driving pawl 23, on the lever 27, to rotate the ratchet wheel 22, through one tooth and so lower the rack 12. by a corresponding amount. After a predetermined number of coins has been inserted in the slot 6, the ledge 32 uncovers the gap 33, so that now the coin pocket is positioned in register with slot 5, by a pin 34, on the plate 4 engaging the fixed stop 7. Also a pin 99, on the plate 4, engages a pin 100 on the shutter to move the shutter to cover slot 6 and uncover slot 5. The shutter is retained in this position, until reset by the manual raising of the rack 12, by a nose 9, on the arm 8, engaging a notch 16 in the shutter. When the rack is raised, a nose 11 thereon coacts with an extension 10 of the arm 8, to keep the nose 9 out of engagement with the' notch 16.
Patent GB-149297-A (GB)
Title: Improvements in or relating to the purification of zinc bearing solutions
IPC: C01G9/06
Filed: 1920-07-16
Abstract: Zinc sulphate, such as that diverted from an electrolytic circuit which contains manganese, is purified for the production of lithopone in such a manner as to allow equivalent quantities of the sulphate and sulphide radicals to be present in the reaction for producing the lithopone.  For instance, the manganese is removed by an alkali hypochlorite or a mixture of an alkali sulphate and bleaching-powder; or by bleaching powder with a subsequent addition of an alkali sulphate to replace the amount of sulphate radical removed as calcium sulphate.  If the base of the hypochlorite forms an insoluble sulphide, an equivalent amount of sodium sulphide is added.  The lithopone obtained from the purified solution is stated to be resistant to sunlight.
Patent GB-666553-A (GB)
Title: Tipping apparatus
IPC: B65G67/00
Filed: 1947-08-07
Abstract: 666,553. Tipplers for unloading vehicles. WEST, C. W. Aug. 6, 1948. [Aug. 7, 1947] No. 21662/47. Class 78 (iv). Construction and mounting of cradles. The cradle of the tippler for railway wagons illustrated is tipped by first rolling on an upwardly or downwardly inclined track 2 and finally tilting about the end of the track. The points of engagement between the cradle and the track lie, before tipping begins, below the cradle. The cradle comprises a pair of arms 1 carrying treads 6 for engagement with rungs or steps 3, 3<SP>1</SP> on the two members forming the track. When the cradle reaches the end of the track 2 a roller or rollers 9 mounted on a pin 8 carried by a bracket 7 at the end of each arm 1 takes into a corresponding trunnion socket 10 in a seating 11 at the upper end of the track 2 and the cradle then pivots on the rollers 9. Driving and constraining tipplers : ropes wrapped around cage. In the construction shown two ropes 12 are anchored at 20 to arms 21 each fast with one of the cradle-arms 1. Each rope passes along the underside of one of the arms, over skid blocks 18 and 17 on a post 16 secured to the cradle, and over pulleys 14 and 13 on a superstructure S to a winch M which tips the cradle and controls its return under gravity. Where the track 2 is inclined downwardly, so that the cradle is tipped by gravity and restored by power, the ropes 12 are preferably anchored to upstanding posts on the cradle at points above the level of the winch so as to increase the leverage of the rope. Securing and suporting vehicles during tippling. A bolster beam 31 carried by arms 30 swinging about the axis of the trunnion sockets 10 is held against the top of the wagon during tipping by a counterweight 36. Pedestals 39 on the bolster engage a stop bar 37 to limit the tipping movement. The rails R, R<SP>1</SP> on the cradle are carried by the usual tilting platform 22 mounted in trunnions 23 so that the wagon may rest during tipping against side bolsters 24 or 26.
Patent GB-1430252-A (GB)
Title: Bending of pipes
IPC: B21D9/04
Filed: 1973-04-05
Abstract: 1430252 Bending pipes CRO-CROSE INTERNATIONAL Inc 5 April 1973 [6 June 1972] 21671/75 Divided out of 1430251 Heading B3E The subject matter is the same as that of the parent Specification 1,430,251, but the claims are directed to the apparatus involved in pipe bending Co-divisional Specification 1,430,253 is also referred to.
Patent GB-658624-A (GB)
Title: Improvements in and relating to the control of electric power systems comprising a plurality of parallel connected generators
IPC: H02J1/10
Filed: 1949-09-09
Abstract: 658,624. Automatic control of current and voltage systems depending on two or more sources. BRITISH THOMSON-HOUSTON CO., Ltd., and PAYNE, K. J. Aug. 17, 1948, No. 21707. [Class 38 (iv)] A regulating system for aircraft, or other variable-speed, generators A1, A2 operating in parallel and in association with a battery K, comprises carbon pile regulators B1, B2 for the individual generators and a common master regulator G of the same type which exerts control simultaneously on the operating coils L1, L2 of the several individual regulators and which, in addition to the usual operating winding P, responsive to the common bus-bar voltage, has a winding Q in series with the battery and so acting on the pile as to maintain constant the battery charging current by control of the bus-bar volts. To maintain a prescribed load division between the machines the regulators B1, B2 have further windings M1, M2 energized by the voltage difference, which is normally zero, between the voltage drops across resistance F1, F2, carrying the currents of the individual machines. Specification 589,474 is referred to.
Patent GB-1190628-A (GB)
Title: Improvements in or relating to the Manufacture of Velvet Ribbon.
Inventor: KUNY HANS
IPC: D03D39/16
Filed: 1967-05-11
Abstract: 1,190,628. Weaving pile fabric ribbons. H. KUNY. 11 May, 1967 [12 May, 1966], No. 21850/67. Heading D1K., Velvet ribbons are woven face-to-face in a four-shuttle smallwove, loom. The ground fabric of each ribbon consists of two plies (e.g. 53, 54) joined only at the edges by means of a binder warp thread 41; .the inner ply contains fewer warp threads 33, 34 than the outer ply and its weft picks f (Fig. 3) are tensioned more than the picks e of the outer ply so that, on leaving the loom, the edges of the outer ply roll inwards as indicated by the binder warp threads 41 on Fig. 3, which were originally at the extreme edges of the ribbon. Alternatively, instead of using binder threads 41, the ground warp 'threads 31-34 may be combined into a single shed in the pile less zones to produce single-ply -margins on the ribbons.
Patent GB-207136-A (GB)
Title: Improvements in and relating to steam condensing and boiler feed water supply systems
IPC: F22D5/08
Filed: 1923-04-20
Abstract: 207,136. Hick, Hargreaves, & Co., Ltd., and Johnson, J. E. April 20, 1923. Feed-water, supplying. - In apparatus of the kind in which water is by-passed from the feed tank or system back to the condenser under the control of a valve 5, Fig. 1, operated by a float 4 in the condenser well 1, the well is fitted with a weir discharge. The partition 1<a> serves as a weir over which the water discharged from the condenser passes to the pipe 3 leading into the extraction pump. The partition may be formed with a notch 1<b>, Fig. 2, which gradually increases in width towards the bottom. The element 6 of the return pipe may pass through and may be formed integral with the well.
Patent GB-383309-A (GB)
Title: Method of and apparatus for the treatment of flue gases, residual trade gases and the like
IPC: B01D47/06
Filed: 1931-08-01
Abstract: In the process of the parent Specification for washing flue gases &c. which is modified by the provision of adding air to the gases before or during treatment, of aerating or otherwise securing an adequate amount of oxygen in the washing liquid or of aerating the effluent, banks of catalytic agents may be included in the path of the gases, which may be subjected to oxidation to convert sulphur dioxide to sulphur trioxide or sulphurous to sulphuric acid by oxides or sulphates of iron in ferric condition or similar salts of manganese &c., either dry or in suspension or solution.
Patent GB-476130-A (GB)
Title: Improvements in or relating to rotary drilling tool with rolling cutters
IPC: E21B10/08
Filed: 1936-08-10
Abstract: 476,130. Earth - boring tools. ZUBLIN, J. A. Aug. 10, 1936, Nos. 22044, 22045, and 22046. Convention dates, Dec. 26, 1935, March 30, 1936, and July 22, 1936. [Class 85] A rotary earth-boring tool comprises at least one cutter carrier rotatable on a rotary shank about an axis normal, or approaching the normal, to the axis of the shank, and a plurality of individual cutters rotatably mounted on the carrier so as successively and intermittently to contact with the earth formation on rotation of the carrier. In Fig. 2, the shank has depending legs 12 joined by a hood 15 with ribs 12a adapted to engage the side of the borehole ; a stepped shaft 14 is supported in the legs and carries on roller bearings 19 a cutter carrier 18 with side ball bearings 20. The shaft 14 has a pin 21 which engages an L-slot on one leg 12, a pin 25 being inserted through registering bores at the other end of the shaft and an exposed part 26 of this pin is bent to lock it. The carrier 18 has two rows of staggered radial slots 28 in which cutters 30 are rotatable on preferably inclined pins 31 welded into grooves in the carrier. The shank has inclined flushing passages leading to opposite sides of the carrier. In Fig. 3, the shank 10a has inclined bearing pins 71 on which cutter carriers 14c, with cylindrical and conical bearing surfaces, are held by balls 72 inserted through passages 25 afterwards plugged. Passages 78 provide for flush lubrication. In Fig. 4, two carriers 61 are mounted on a central pin 60 and provided with ball bearings 25, 27, the balls 25 being inserted through radial grooves 30. Flush lubrication ports 43 are provided, and the pockets receiving cutters 20 are connected by passages 42. The cutters may have axial, circumferential or other teeth, or alternate cutters may be alike and intermediate cutters different ; the spacing and width of the cutters may vary. In another form, the pin 60 is stepped to receive the cutter carriers and is offset from the shank axis, the legs 12 being connected on the opposite side of the axis by a ribbed hood as in Fig. 2 ; further, the pins 35 supporting the cutters 20 are oppositely inclined in the two carriers so as to assist or retard rotation of the carriers. In Fig. 10, carriers 14, 16, with interposed ball bearings 22, are supported on conical bearings 20 with flat-sided bosses 20a which, after assembly, are slid into horizontal grooves 12a in the legs 12, the bearings 20 being then secured by taperheaded screws 21 which are then locked by turning the outer ends of split pins 26 into slots in the screws and shank. The bearings 20 may be concentric or offset ; in the latter case, one race 23 for the ball bearings 22 is widened for relative radial movement of the balls. The cutter-supporting pins 32 on carrier 16 are inclined. A central flushing nozzle opens vertically and centrally between the carriers so as to spin the cutters and a further nozzle delivers through channel 41 in one leg 12. U.S.A. Specification 1,992,350 is referred to.
Patent GB-634293-A (GB)
Title: An electro-hydraulic valve applicable to hydraulic systems
IPC: F15B13/01
Filed: 1945-08-28
Abstract: 634,293. Electrically-actuated valves. FAIRY AVIATION CO., Ltd., LISLE, W. G., and EBEL, F. L. Aug. 28, 1945, No. 22123. [Class 135] An electro-hydraulic valve for the remote control of, e.g. a hydraulic jack, or for the synchronous control of a number of jacks, comprises a casing 10 communicating with the main supply pipe 18 to the jack cylinder 20, a pipe 23 connected to the jack cylinder, and a sump pipe 24. Communication with the pipes 18, 24 is controlled by valve members 11, 12 respectively, normally held closed by a common spring 1'3 and alternately opened by an armature 14 common to oppositely wound solenoids 15, 16. When the solenoid 16 is energized the armature 14 will be moved to the right and the valve 11 opened to permit pressure liquid to pass to the cylinder 20 via the pipe 23 to move the piston to the left and displace liquid on the other side thereof through the valve 11 and pipe 23 to the opposite end of the cylinder. When the solenoid 15 is energized the armature 14 moves to the left to open the valve 12 and close the valve 11 to permit movement of the piston to the right and the exhaust of liquid from the right end of the cylinder to the sump. Specification 634,294, [Group XXXV], is referred to.