baber/WOPTO huggingface dataset:
Patent GB-1312496-A (GB)
Title: Hydraulic valve assemblies
IPC: F15B13/04
Filed: 1970-10-28
Abstract: 1312496 Valves PARKER-HANNIFIN CORP 9 Dec 1970 [9 Jan 1970] 58514/70 Heading F2V A four-way valve assembly for preventing cavitation in a fluid motor 8 comprises, a housing 2, a pressure inlet port 3 for connection to a pump 4, a return port 5 for connection to a tank 6, a pair of ports 7 for connection to the motor, and a valve spool 20 embodying a relief valve 21 and a check valve 27. A relief valve 13 and check valves 15 are also provided. In the "neutral" position shown, fluid from the port 3 can pass through passages 12 and 11 so as to return to the tank 6. To lower the load L, the valve spool is moved to the "lower" position. In this position, the passages 12 and 11 are closed and a groove 34 connects a lower pressure feed passage 14 to a lower motor passage 16, whereby fluid under pressure passes through the lower valve check 15 to the upper end of the motor 8. Also, whilst in this position, the holes 24 are located in the upper motor passage 16 and the holes 26 are located in a return passage 17, whereby the pressure of the returning fluid, under the influence of the load L, can open the relief valve 21. Furthermore, in the "lower" position the holes 29 are also disposed in the upper motor passage 16 and the holes 31 register with the passages 12, whereupon fluid flowing from the motor can unseat the check valve 27, thus to supply fluid to the inlet port 3 if the pressure at the inlet port is less than that established in the motor port by the relief valve so that the upper end of the motor 8 will not cavitate despite the influence of the load L tending to actuate the motor at a speed which exceeds the capacity of pump 4. When the return flow of fluid from the motor stops, valves 21 and 27 immediately close to effect rapid build up of pressure in the motor circuit. To raise the load L, the valve spool is moved to the "raise" position. In this position, fluid from the inlet port 3 flows into the upper passage 14 via check valve 15 and thence through spool groove 35 into passage 16 and port 7 leading to the lower end of the motor 8. Meanwhile, the lower passage 16 communicates with the lower return passage 17 by the spool groove 34 whereby fluid displaced from the upper end of the motor is returned to port 5. In the "raise" position, the lands 32 and 19 close the passages 12 and 11.
Patent GB-1195299-A (GB)
Title: Improvements in and relating to a Reamer
Inventor: GREEN JACK OWEN
IPC: B23D77/02
Filed: 1967-12-23
Abstract: 1,195,299. Reamers. J. 0. GREEN. 24 Feb., 1969 [23 Dec., 1967], No. 58557/67. Heading B3C. A reamer includes a regrindable tip removably held in a recess at an end of a body portion by screw means passing through a bore in the tip and parallel to the axis of the body portion and such that rotation of the tip relative to the body portion is prevented. In one embodiment (Fig. 1) a regrindable throw-away tip 18 is located against rotation relative to the body portion 10 by a recess having three triangular corner pieces (17) (Fig. 2, not shown) and is held therein by a screw 12 which may receive a locking screw 14. The tip 18 has three forwardly directed projections 19 for reaming a blind hole. Alternatively, for reaming a through hole a tip 20 without the projections 19 is used. An adjustable tip (21), (Fig. 3, not shown) may be used. In a second embodiment (Fig. 4) the tip has a frusto-conical portion 34 received in a complementary recess 29 in the body portion 26, the tip being secured non-rotatably to the body portion in a manner similar to that of the first embodiment but using a single counersunk screw 35. In an alternative form of tip one cutting edge and a pair of rubbing edges are provided. Oil may be fed to the tip end of the shank.
Patent GB-1291072-A (GB)
Title: Lock for a door
Inventor: DALEN CHRISTIAAN JOHANNES VAN
IPC: E05B47/00
Filed: 1969-12-03
Abstract: 1291072 Locks NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE DIRECTOR GENERAL OF 3 Dec 1969 [16 Dec 1968] 59089/69 Heading E2A A lock for a door comprises a bolt s displaceable between projecting and retracted positions, key releasable lock mechanism parts A and B and a catch pin p displaceable from a first position in which it is ineffective to cause retraction of the bolt by the lock mechanism to a second position in which it is effective to cause retraction of the bolt when the lock mechanism is released by an appropriate key and a third position where the bolt is free to move between the projecting and retracted positions independently of the lock mechanism when the door is pressed the pin p is depressed by contact with a casing g on the door frame. An arm c on the pin moves therewith to pivot a pawl d attached at one end by a spring V 2  to one end of the lock mechanism part B, to displace the part B towards the bolt when it has been released for movement by a magnetic key M, a finger b on the part B makes contact with switch contact sc and a circuit of an electromagnet is completed to withdraw the bolt s from an aperture in the casing g. A latch member f on the pawl a engages a hook on an arm e on the part B to retain the bolt retracted as the door is opened by the pin p urged outwardly by a spring V 1 . The outward movement of the pin brings a pin g thereon into contact with the latch member f which pivots to disengage the hook on the part B, the bolt is then free to project under the action of a spring and the part B returns to its original position with respect to the part A under the action of springs V 2  and V 3 . The parts A and B are retained by pin tumblers releasable by the magnetic key M. In a modification, the parts A and B are released by a non magnetic key, and the bolt s is withdrawn by an arm h one end of which engages in a recess in the bolt and the other end engages an ear o on the part B. As the part B moves the ear o causes the arm h to pivot and withdraw the bolt.
Patent GB-1358620-A (GB)
Title: Method of producing abrasive
IPC: C09C1/68
Filed: 1972-12-21
Abstract: 1358620 Crystallizing from a melt NORTON CO 21 Dec 1972 [27 Dec 1971] 59172/72 Heading B1S [Also in Division C4] Abrasive grains are obtained from molten abrasive material by pouring the material into a plurality of spaces defined by a plurality of relatively cold spaced parallel graphite or metal plates, so that the abrasive is solidified rapidly without melting the plates and separating the solidified abrasive from the plates comminuting it. Preferably the plates are onehalf to one-sixteenth inches apart, the ratio of the volume of plates to the volume of space between the plates being preferably at least 3 to 1. The plates should be non-reactive with the molten abrasive and may have a melting point of above 650 C. A preferred plate is of steel having a thickness of ¢ inch. The abrasive material has extremely small crystal structure.
Patent GB-1376390-A (GB)
Title: Corrosion-resisting austenitic-ferritic stainless steel
IPC: C22C38/00
Filed: 1972-12-21
Abstract: 1376390 Stainless steel compositions BOFORS AB 21 Dec 1972 [23 Dec 1971] 59218/72 Heading C7A A corrosion resistant steel comprises by weight :- 2.0 to 4.0% silicon 0.5 to 3.0% manganese 23 to 27% chromium 3.5 to 8% nickel 0.5 to 2% molybdenum up to 0.15% carbon up to 0.1% nitrogen 0 to 1% titanium 0 to 2% niobium 0 to 4% tantalum the balance being iron and impurities or minor amounts, of incidental elements. If quenchannealed to provide 10 to 25% by volume anstenite in an otherwise ferritic structure, the resulting steel has improved strength properties.
Patent GB-1415879-A (GB)
Title: Wheel covers
IPC: B60B7/06
Filed: 1972-12-22
Abstract: 1415879 Vehicle wheel cover discs E E FOSTER 22 Dec 1972 [27 Dec 1971] 59365/72 Heading B7C A wheel cover comprises a cover disc and on the inboard side of said disc a plurality of circumferentially spaced resilient members which each have a portion frictionally engaging a surface of a wheel to retain the cover thereon, one of the members being spaced circumferentially from the next adjacent members by at least 90 degrees and having associated therewith rotatable cam means operable from the outboard side of the cover disc for moving its portion to facilitate securing of the cover to, or removal of the cover from, the wheel. As illustrated in Figs. 1, 5 and 7, the cover 10 is of moulded plastics and is reinforced by a U- shaped metal ring 32 connected to the cover by rivets 36. Resilient members 28, 30 are secured to the metal ring and member 28 includes a leg 46 with an aperture 62 in which a cam 58 on a rotatable stud 52 is located. Rotation of the stud facilitates mounting of the cover on or its removal from the wheel. With the portion 44 of the member 28 in its radially outermost position, and with portions 44 of the members 30 engaged in annular groove 26, the cover may be moved into its secured position upon the member 28 being cammed by the wheel rim to permit its portion 44 to move into engagement with groove 26. In the embodiment of Figs. 13, 14, the cover is provided with two diametrically opposed resilient members 70 and two diametrically opposed guide members 72. Each resilient member comprises spring legs 108, 110 which are moved by rotation of a cam-plate 96 in one sense into the broken line positions of Fig. 13 to secure the cover on the wheel. Rotation in the other sense returns the spring legs to their full line positions. In the embodiment of Figs. 22 and 25, a spring finger 168 is moved radially outwardly into frictional engagement with groove 26 by rotating stud 90 so that an eccentric 200 is positioned radially outwardly of the studs axis. Movement of the eccentric to its radially innermost position facilitates removal of the cover from the wheel. The cover includes two other spring fingers (170, Fig. 19, not shown) secured to the cover. In a modification the spring fingers are inclined to a radial plane and engage a groove defined by the radially inwardly facing surface of the axially outer lip of a tyre bead retaining flange (Fig. 26, not shown). In a further modification (Figs. 17, 18, not shown), there are three equispaced movable spring fingers similar to finger 168 which releasably engage an annular groove (132) formed by the hub cap retaining projections (134).
Patent GB-1427818-A (GB)
Title: Solid rotor machines
IPC: H02K5/16
Filed: 1973-12-21
Abstract: 1427818 Dynamo-electric machines FEDERAL - MOGUL WESTWIND AIR BEARINGS Ltd 14 Aug 1974 [21 Dec 1973] 59556/73 Heading H2A An electric motor comprises a cylindrical rotor including a solid, non-laminated body of iron or steel carrying a squirrel cage winding formed of electrically conductive material 4 disposed in a series of longitudinally extending grooves 5 and a pair of annular grooves 6 interconnecting the ends of the longitudinal grooves. The squirrel cage shown is mounted directly in grooves 5, 6 formed in the surface of a solid iron shaft 1. The winding may be of copper or aluminium and may be formed by spraying, casting, electro-deposition or by brazing or welding conductive strips in the grooves.
Patent GB-597956-A (GB)
Abstract: 597,956. Signs. SAUNDERS, W. T. June 15, 1945, No. 15321. [Class 3 (ii)] [Also in Group XXXVIII] An indicator board is formed with a series of grooves or slots arranged side by side, for detachably receiving tablets having inscribed thereon matter to be remembered, and a line traversing said series of grooves or slots so that said detachable tablets may be moved from one side to the other of said dividing line according to whether or no a reminder concerning them is required. An annular baseboard 5, Fig. 1, has in its upper half two series of radial slots 7 divided by a space, in the centre of which is a single radial slot 7'. Tablets 9 mounted on press-studs 8, Fig. 3, bear the names of household goods and are pressed into the appropriate alphabetical slots 7 to indicate the goods in stock. When the stock of an article becomes low, the appropriate tablet 9 is moved to the inner end of its slot 7, within a circle 11 which may be labelled " Stocks low " or the like. The single slot 7<1> supports longer, arcuate, tablets 10 bearing the names of shops. A collar or bangle 12 is a press-fit in the central aperture 6 and is normally retained there. At the beginning of a shopping expedition the housewife removes the bangle 12 and inserts in holes 15, Fig. 2, in a raised flat 14 the tablets 10 bearing the names of shops. She then inserts the tablets 9 from within the circle 11 in a groove 13 round the rim of the bangle 12 opposite the tablet 10 designating the appropriate shop. The bangle is worn on the wrist whilst shopping and when an article has been purchased its tablet 9 is removed from the " shop position and placed alongside an additional, larger, tablet 10 inscribed "purchased." The baseboard may be made of pressed metal, plastics or the like and may be adapted for fixing to a wall. The lower half may be divided into radial portions 18 inscribed with the days of the week, alongside which memoranda may be written either on the board itself or on tablets adapted to be fixed thereto by press-stud or like fastenings.. The bangle may be made of a light non-precious, non-ferrous metal, plastic or any other suitable material. The Provisional Specification states that the flats 14 of the bangle 12 may be slightly tipped or spigotted or the face of the bangle may be channelled, to receive the tablets 9 in a slidable manner.
Patent GB-1217800-A (GB)
Title: Improvements in or relating to flame scarfing nozzle burners
IPC: F23D14/34
Filed: 1969-12-18
Abstract: 1,217,800. Scarfing. MESSER GRIESHEIM G.m.b.H. 18 Dec., 1969 [23 Dec., 1968], No. 61803/69. Heading B3V. [Also in Divisions F3-F4] In a scarfing nozzle burner (see Division F3-F4) for a flame scarfing machine, upper and lower nozzle burner halves 3 and 2 respectively are mounted on a divider bar 8 in spacedpart relationship to form a flame scarfing slot 4 and the upper and lower burner halves are adjusted by providing a laminated metal sheet 5 between at least one of the burner halves and a projection 9 of the divider bar 8 in order to provide an accurate determination of the width of the flame scarfing slot. The laminated metal sheet 5 consists of a plurality of paper-thin metal layers 13 bonded together under pressure by means of a bonding agent or adhesive; The metal sheet is held in place by means of screws 6 used for securing together the burner halves and the divider bar 8.
Patent GB-1260980-A (GB)
Title: A centrifuge rotor needle lock arrangement
Inventor: JANETZKI HEINZ
IPC: B04B9/08
Filed: 1970-12-31
Abstract: 1,260,980. Centrifugal separator. HEINZ JANETZKI K.G. 31 Dec., 1970, No. 61953/70. Heading B2P. [Also in Division F2] A rotor needle lock arrangement in a centrifuge comprises a groove 10 formed in a rotor needle 1, a first bore 9 in a pinion 2 driving the rotor for receiving the rotor needle, a second bore 12 in the drive pinion communicating with, and transversely oriented to, the first bore 9 and a locking ball 4 seated in the second bore 12 and projecting into the first, bore 9, whereby upon engaging the rotor needle 1 in the first bore 9 of the drive pinion 2 the needle is moved to a position in which the ball projects into the groove 10 of the needle to effect locking of the needle within the drive pinion. A ball bearing 3 on which the drive pinion 2 is seated retains the ball 4 within the bore 12. The end 7 of the needle remote from that upon which the rotor is mounted engages in a smaller diameter part 8 of the bore 9.
Patent GB-2023014-A (GB)
Title: Toy vehicles
IPC: A63H31/00
Filed: 1978-06-16
Abstract: A wheeled toy has driven road wheels (1) which are coupled to a motor through the intermediary of a gear arrangement (6,7C). To avoid the possibility of damage to the gear arrangement or motor should the toy be pushed or pulled manually, the drive between the motor and the driven wheels (1) is arranged to be disabled when the toy is moved manually along a surface. To achieve this, in an embodiment of the invention the gear arrangement is so arranged that during operation of the motor one gear (6), which is mounted on a shaft (10) movable in an angled slot (11), is urged into driving engagement with another gear (4), and during manual movement of the driven wheels the gears (6,4) are moved relatively out of driving engagement. <IMAGE>
Patent GB-2029263-A (GB)
Title: Improvements in or relating to rollermills
IPC: B02C4/32
Filed: 1978-09-01
Abstract: A rollermill having a pair of grinding rolls (13, 14) one of which (13) has a fixed axis of rotation and the other of which (14) has an axis which is movable to place the rolls in grinding relationship, the movable roll (14) being connected via a compound lever (16, 19, 21) to a pneumatic cylinder (25) whose action is assisted by the mechanical advantage of the compound lever to an extent whereby only a small cylinder is needed when compared with cylinders used in simple lever systems for the same purpose. <IMAGE>
Patent GB-2005435-A (GB)
Title: Instrument for determining the distinctness of image of a paint film
IPC: G01N21/57
Filed: 1978-09-25
Abstract: A portable instrument quantitatively determining the distinctness of image of a sample paint film by providing comparison of the film with several standard films of known distinctness of image. The instrument displays the sample and one of the standards within an enclosed casing while an image forming pattern is projected simultaneously on both by a light source within the instrument. By changing the standard which is displayed, an observer compares the distinctness of image of the sample with the known values of several standards until a match is found. <IMAGE>
Patent GB-2007543-A (GB)
Title: Improvements in or Relating to a Patterning Device.
IPC: D06B11/00
Filed: 1978-09-27
Abstract: A liquid, e.g. a dye moving as a transverse film or curtain onto an advancing web 1 is provided with a pattern by directing one or more air jets thereagainst from a rotatable and horizontally reciprocable tube 11 also extending transversely of web 1 and provided with apertures 21 connected to a compressed air supply 20. The air jets may act upon a uniform film 22 sliding down a doctor blade 6, or on a curtain of liquid dropping from the blade. The position of the tube and the height of free fall of liquid are adjustable. <IMAGE>
Patent GB-2006384-A (GB)
Title: Hose Manufacture
IPC: B29C35/06
Filed: 1978-10-11
Abstract: A method of manufacturing a hose comprising a layer of polymeric material having an embedded reinforcement structure. The hose structure is formed on a mandrel 17 and the polymeric material is cured by passing the assembly through a curing unit 10 containing heating fluid at a pressure greater than 100 p.s.i. The use of pressures greater than 100 p.s.i. ensures the hose components are securely bonded to one another and avoids the use of a conventional outer lead sheath which is expensive and the fitting and removal of which considerably increases the cycle time. Preferred heating fluids are salts, such as a eutectic mixture of sodium and potassium nitrates, a mixture of sodium nitrite and sodium nitrate or Cassell TR 155. At the vulcanisation temperatures of 170-200 DEG C used the temperature of the heating fluids is substantially independent of pressure. Pressures up to 500 p.s.i. can be used to achieve the necessary bonding of the hose components. <IMAGE>
Patent GB-2013867-A (GB)
Title: An ignition system for a gas-fired burner
IPC: F23N5/10
Filed: 1979-01-04
Abstract: An ignition system for a gas-fired burner, for example for a navigation light, has a magnetic safety gas valve (5) a thermoelectric ignition safety device (7) controlling the magnetic valve, and an electrically operated igniter (9). An energising coil device (5a) is associated with the magnetic valve to energise the valve, the energising coil device being operable by a starting and control device (24) by way of a capacitor (30) which in timed sequence is chargeable from a battery (29) and dischargeable through the energising coil device. <IMAGE>
Patent GB-2013623-A (GB)
Title: A carrier pack for articles of furniture
IPC: B65D75/04
Filed: 1979-01-19
Abstract: A carrier pack for collapsible or unassembled articles of furniture is formed from a blank having two central transverse scorings 6a spaced apart a distance corresponding to the width of the article to be carried to define a base 14 of the pack, side panels 15a, 15b defined between the central transverse scorings and outer transverse scorings 12a, 12b and cover panels 17. The blank has three central longitudinal cuts defining therebetween two longitudinal strips 16 attached to the side panels by inclined scorings 10a to 10d extending between the ends of the cuts. On erecting the side panels, the longitudinal strips are folded out of the plane of the blank to form lateral retaining elements extending between the side panels for retaining an article introduced between the side panels from above. Tabs 19 on one cover panel are inserted in slots 20 in the other cover panel to close the pack. <IMAGE>
Patent GB-2021260-A (GB)
Title: Optical gauging of cross- sectional dimensions
IPC: G01B11/10
Filed: 1979-03-09
Abstract: In a gauge for detecting or measuring cross-sectional dimensions or deviations from a predetermined shape or cross-sectional dimension of an elongate object (4), in which a light source (2) directs a coil mated beam of light onto objects 4 as they pass through a tubular housing, and an assembly of photo diodes (8, 9) receives images of boundary portions of the illuminated moving objects and produces electrical signals from which the parameters to be detected or measured can be derived, the housing and optical apparatus is rotated about an axis concentric with the path to be taken by the object. The source 2 may be continuous or pulsed, and the objects may be metal rods or bars. <IMAGE>
Patent GB-2025585-A (GB)
Title: Guided hollow charge projectile
IPC: H01Q1/28
Filed: 1979-06-25
Abstract: A projectile incorporating a hollow explosive charge includes a cover member for one end of the charge, which cover member serves during flight of the missile as a reflector for electromagnetic waves transmitted to and/or from the projectile and also as an armour-piercing spike on explosion of the charge. The combination of functions in one member avoids minimising the effectiveness of the spike and reduces the inactive weight of the projectile.
Patent GB-2024325-A (GB)
Title: Ignition controls
IPC: F23Q3/00
Filed: 1979-06-28
Abstract: An ignition-delaying circuit for a fuel-firing heat source comprises an igniting transformer 4 having a primary winding, which is connected to a voltage source by an NTC resistor 7. The latter is connected to another resistor 16 by a lead 15 which is adapted to transmit heat generated by said other resistor to said NTC resistor. <IMAGE>
Patent GB-2059403-A (GB)
Title: Treatment of fluoride- containing waste
IPC: C01F7/50
Filed: 1979-08-29
Abstract: The treatment and disposal of fluoride-containing waste materials e.g. from electrolytic reduction cells for the production of aluminium and other wastes containing fluoride values comprises passing the said waste in finely comminuted form through a fluidised bed distillation zone maintained at a temperature in the range of 1200-1600 DEG C, the bed being maintained in a fluidised condition by a stream of inert and/or essentially non-oxidising gas which acts as a carrier to distill off the sodium values from the waste as sodium, sodium fluoride and/or sodium fluoaluminates, such as NaAlF4. The off-gas stream may be led into a separate hydrolysis zone, where it is treated with steam in the presence of alumina maintained at a high temperature, for example 1000-1300 DEG C. <IMAGE>