baber/WOPTO huggingface dataset:
Patent GB-1513468-A (GB)
Title: Rotor balancing devices
IPC: F16F15/14
Filed: 1975-10-07
Abstract: 1513468 Balancing rotary members; shaft balancing CHRYSLER UNITED KINGDOM LTD 23 Sept 1976 [7 Oct 1975] 41064/75 Heading F2U A rotary member, such as a vehicle propeller shaft 10, is balanced by a device 11 comprising weights 17 arranged to assume automatically positions to counter-balance any out-ofbalance of the member as it is rotated, the weights being locked in these positions against further adjustment during rotation of the member. The weight 17 are arranged to overlap with one another to prevent them moving into axial alignment. As shown, a cup-shaped casing 12 with a centre pivot pin 15 is fitted to the inside of a hollow shaft 10. The weights 17 are mounted on the bushes 16 by tension springs 18. Initially the bushes 16 rotate with the centre pivot pin 15 due to friction but at balancing speed they move about the pin automatically and the weights move radially and adhere to the frictional surface 20 of the casing by their coatings of contact adhesive 19. In Fig. 2 (not shown) the tension springs are replaced by compression springs and the weights are held by threads of material (22) which snap, extend or fuse (by electrical means) at balancing speed. In Fig. 3 (not shown) the breaking threads (22) are again employed but the springs are replaced by overcentre linkages (23) which lock the weights in their final positions in engagement with contact adhesive on the casing. In Fig. 4 (not shown) the weights are mounted on their bushes by swing arms (24) restrained by tension springs (18) and are movable in planes containing the rotary axis at the balancing speed to adhere to inclined surfaces (25) on the casing. In Fig. 5 (not shown) the weights are secured to axiallyslidable bushes and move to adhere to projections (26) on the end of the casing when threads of material (28a) are severed to release compression springs (28). In Fig 6 (not shown) frictional telescopic arms (28) release the weights at balancing speed. In modifications, interengaging parts may be employed to prevent circumferential or return movement of the weight after these have moved to their final positions and thermally activated adhesive may be employed instead of contact adhesive.
Patent GB-1079782-A (GB)
Title: Closure for a box or like container
IPC: B65D81/32
Filed: 1964-10-08
Abstract: 1,079,782. Containers. REYNOLDS METALS CO. Oct. 8, 1964 [Oct. 11, 1963], No. 41153/64. Addition to 1,079,781. Heading A4G. [Also in Division B8] To seal the top flaps 38, 39, Fig. 1, of an open-ended box 30 similar to that of Specification 1,079,781, a clip 42 of plastics, paper &c. and including a flexible metal band or wire (46), Figs. 2, 4 (not shown), is stuck to one of the top flaps, so that after folding-down and sticking together of the top flaps when the container has been filled, the clip can be folded to engage the other top wall. In one form, the edge 44 of the clip 42 is folded over the side wall and its ends (45) tucked round behind the edge of a flexible liner 40, forming one side of a productreceiving compartment. The clip 42 may either be stuck to the top flap (39) before the rigid board 37 comprising the box 30 is folded to shape, or alternatively it may be stuck in position when the container is completely formed. The box is assembled from a flat blank and filled with a product as described in Specification 1,079,781. When the top flaps 38, 39 have been separated to open the container, they can be re-closed by replacing the clip. In a modification, a similar clip (68), Fig. 11 (not shown), of paper &c. with a wire or metal band reinforcement, is folded over and behind notches (87) in overlapping top flaps (66, 67) of the rigid board side walls (63, 64) of a cigar box. The top flaps (66, 67) are initially stuck together, but when the box has been once opened, they can be reclosed by replacing the clip (68). The outer wall of the box is formed by folding a rigid board having two transparent film windows (78) and two compartments (70) constituted by a flexible liner stuck at its edges to the box. The rigid bottom wall (62) of the box and the flexible liner stuck to it are perforated at (81), so that the box may be easily separated into two parts. In another modification, a box (88), Fig. 17 (not shown), has its overlapping top flaps (94, 95) secured together by a clip (100) and comprises two sets of each of two compartments in sideby-side relationship. The rigid board forming the outer wall of the box (88) and the flexible liner stuck to it are perforated at (103), so that when one half of the box has been emptied, it may be torn off the remaining half.
Patent GB-888520-A (GB)
Title: Improvements in or relating to electrostatic precipitators
Inventor: BUSBY HOWARD GEORGE TREVOR
IPC: B03C3/66
Filed: 1958-12-19
Abstract: 888,520. Supply systems for electrostatic precipitators. LODGE-COTTRELL Ltd. Dec. 11, 1959 [Dec. 19, 1958], No. 41165/58. Class 38 (4). In an electrostatic precipitator circuit comprising a high-tension transformer connected to a rectifier which in turn is connected to one of the electrodes of the precipitator, at least one condenser is provided in series between the transformer and the rectifier to ensure that current surges inside the precipitator are limited in magnitude and are accompanied by rapid drops in the applied high-tension voltage. As shown, condensers 2 are provided between the star secondary winding 1 of a high-tension transformer and a three-phase bridge rectifier 3 connected to one of the electrodes 4 of a precipitator 5. Modified circuits including singlephase transformers with half-wave, full-wave and rotary rectifiers are also described (Figs. 2, 3 and 4, not shown).
Patent GB-1242141-A (GB)
Title: Improvements in or relating to vacuum vapor coating with metals of high vapor pressure
IPC: C23C14/24
Filed: 1968-08-28
Abstract: 1,242,141. Coating by vapour deposition. JONES & LAUGHLIN STEEL CORP. Aug. 28, 1968 [Aug. 29, 1967], No.41166/68. Heading C7F. Mg, Mn, Ca, Te, Cr or Zn is vapour deposited from a crucible on to a substrate of e.g. steel by forming an alloy with at least 15% of another metal to give a melting temperature lower than that of the coating metal, and at the melting point of the alloy a vapour pressure lower than that of the coating metal. The alloys are Mg-Al, Mn-Ni, Ca-Al, Ca-Ag, Ca-Cu, Zn-Sn, Te-Sn, and Cr-Ti.
Patent GB-1068249-A (GB)
Title: Improvements in or relating to the packaging of cheese
IPC: B65B25/06
Filed: 1964-10-09
Abstract: 1,068,249. Machine for packaging cheese; endless conveyers. FROMAGERIES BELLA VACHE QUI RIT. Oct. 9, 1964 [Oct. 11, 1963], No. 41274/64. Addition to 1,011,361. Headings B8A and B8C. A modified form of a machine for packaging cheese as described in Specification 1,011,361 has the dies 1 carried through the entire machine (Fig. 3) at the hinge points of an endless chain. In the embodiment shown the dies (1) (Fig. 1, not shown) are prevented from turning by locating devices (7a), co-operating with grooves cut in the flanges (12). The pitch of the chain is such that the dies are correctly positioned at each of the working stations. The wrapping material may comprise two strips of aluminium foil 16 and 18 (Fig. 3), the strip 16 having a tear strip along its middle and a coating of thermo-welding lacquer on its outer surface, and the strip 18 having its inner surface coated with a lacquer. The two strips are welded together at @. Similar strips 16a and 18a are used to make the cover of the package.
Patent GB-975477-A (GB)
Title: Clutch or brake master cylinder assembly
Inventor: PAGE ERNEST
IPC: B60T11/22
Filed: 1962-11-01
Abstract: 975,477. Master cylinders; clutch control. FORD MOTOR CO. Ltd. Sept. 20, 1963 [Nov. 1, 1962], No.41290/62. Headings F2F and F2L. A motor vehicle clutch or brake master cylinder comprises a piston 15, a reservoir 5 communicating through an aperture 7 with the cylinder 9, an outlet 11 connected to the brake or clutch mechanism, a valve member 43 carried by a valve stem 45 which extends into a bore 23 of the piston, a return spring 37 interposed between the piston and a space member 35 which is held against the end of the cylinder in all positions of the piston and a valve spring 47 biasing the valve member to close the aperture 7. An element 49 is in frictional engagement with the valve stem, is slidable relatively to the valve stem and is engageable by the piston so that movement of the piston under the action of the return spring moves the valve stem to move the valve member against the valve spring 47 to open the aperture whilst movement of the piston against the return spring 37 permits the valve spring to move the valve member to close the aperture. A shoulder in the bore 23 of the piston engages the element when the piston is in its full stroke position and the distance from the surface of the element nearest the spacer member to the latter when the element is in engagement with the shoulder is less than the distance from the latter surface of the element to the spacer member when the piston is in its fully returned position. The element 49 may be a sleeve (as shown) or a coil spring or diaphragm spring and the frictional force between the element and the stem is arranged to be greater than that required to compress the valve spring 47 but less than that required to compress the return spring 37.
Patent GB-1114392-A (GB)
Title: Pressing articles of thermoplastic materials
IPC: B29C43/00
Filed: 1965-10-01
Abstract: <PICT:1114392/C1/1> A method of pressing an article of glass in a cavity formed between a press mould and a cooperating plunger, comprises the steps of supplying a gob of molten glass to the mould 11, inserting a removable stop 31, 32 between parts of the mould 11 and plunger 12 to define limits for the cavity, the gob having a volume less than the cavity, pressing the gob with sufficient pressure to cause the mould and plunger parts to contact the stop, and thereafter reducing the pressing pressure to a value sufficient only to maintain the mould and plunger in contact with the pressed glass following the removal of the stop, and then removing the stop. The reduced pressing pressure is maintained whilst the article cools in the mould.  The stops 31, 32 are connected to pistons 21, 26 respectively of fluid pressure actuated motors 18, 19, each stop being removed from contact with the mould and plunger into special cavities 23, 28 formed in legs 16, 17 of the plunger support frame. Special replaceable wear plates 38, 39 and 41, 42 are fitted to the plunger frame and the mould for contact by the stop 31, 32.  In the preferred embodiment the glass gob is fed to the mould which is then moved directly beneath, and actuated upwardly into pressing relationship with the plunger 12.
Patent GB-1321762-A (GB)
Title: Endless-tracked vehicle with variable gauge width
IPC: B66C23/62
Filed: 1971-09-08
Abstract: 1321762 Endless tracked vehicles RHEINSTAHL AG 8 Sept 1971 [26 Sept 1970] 41930/71 Heading B7H The guage width of a caterpillar tracked vehicle is adapted to be modified by lateral displacement of running gear frames 3 which have apertures 4 through which free ends of bearer members 2 may pass when the smallest guage width is set. In a preferred embodiment Fig. 6, the opposite bearer members 2 are secured in laterally offset manner and are displaceable in hollow supporting guides 5 arranged on the vehicle truck 1. In another embodiment, Fig. 7 bearer members 15 are secured to the truck 1 by brackets 6 and are  displaceable in aligned supporting guides 12 arranged on the running gear frames 3. The frames 3 may be displaced laterally by hydraulic cylinders 7, Fig. 1, and bearing brackets 10 may serve to support the vehicle on bogie trucks for road transport.
Patent GB-1366327-A (GB)
Title: Internal comustion engine having coolded charge air
IPC: F02B29/04
Filed: 1971-09-08
Abstract: 1366327 Cooling I C engine combustion air GARRETT CORP 8 Sept 1971 [11 Sept 1970] 41952/71 Heading F1B I.C. engine has an exhaust gas driven turbine 20 connected by a shaft to a compressor 22, the output air from the compressor being fed to the engine through a heat exchanger 28 in which it is cooled, ambient air being passed across the heat exchanger by means which are continuously driven by a portion of the compressed air leaving the compressor. The withdrawn portion of compressed air drives a motor-fan unit 26 which blows air through the heat exchanger 28.
Patent GB-934620-A (GB)
Title: A power-operated clamp, for example for lathe and like tailstocks
IPC: F15B3/00
Filed: 1959-12-10
Abstract: 934,620. Tailstocks. SPRINGFIELD MACHINE TOOL CO. Dec. 10, 1959 [Dec. 10, 1958], No. 42015/59. Class 83 (3). A fluid pressure operated tailstock or like clamping device comprises a member movable towards or away from a workpiece, a piston forming a variable volume fluid chamber with the member, and a pressure control means to limit the pressure in the chamber, and the force applied to the work. The tailstock comprises a cylinder 15 secured to a plate 10, slidable on the bed of a lathe &c. 11, a spindle 25 having a head 28 slidable in bushes 47, 18, secured to the cylinder 15, having a centre 85 and a collet 35 secured to the bush 18 and actuated to lock the spindle 25 when the resistance to forward movement of the latter reaches a predetermined value, by an axially slidable piston 60. In operation, fluid is supplied to a chamber 67 between the bush 47 and piston 60, and the latter is moved to the right, thus increasing the pressure in the fluidfilled space 65 which then moves spindle 25 until centre 85 abuts the work. The fluid in space 65 is allowed to leak-off at 77 at a predetermined pressure and further movement of the piston 60 reduces the volume of space 65 and contracts collet 35 to clamp spindle 25. The flow of fluid is reversed to release the collet and piston 60 then engages a collar 45 on spindle 25 to move the centre away from the work. Fluid is supplied from a tank T, through a line 95, to a directional valve 100, and thence to, or from, connections 75, 77 in cyl nder 15, via lines 105, 106. Spindle head 28 may be replaced by a head extending to the right-hand end of the spindle, bush 18 having a single diameter bore. A flexible cover 30 protects spindle 25.
Patent GB-1299157-A (GB)
Title: Permanent magnet
Inventor: RAY ALDEN E
IPC: C22C19/07
Filed: 1970-09-02
Abstract: 1299157 Magnetic composition TH GOLDSCHMIDT AG 2 Sept 1970 [2 Sept 1969] 42084/70 Headings C3B B1L4H BC1 BC33A BL3A BL5X and BA A permanent magnet is made of different-sized magnetically anisotropic particles bonded together, and consisting of (a) a fraction of substantially uniform particle size and a mean particle size of 50-250Á; (b) a fraction of substantially uniform particle size and a mean particle size of 7-50Á and (c) either particles of mean particle size <12Á or a non-magnetic inorganic or organic binder, e.g. a ductile and/or low-melting metal or a polymer. The ratio of the mean particle sizes of (a) to (b) and of (b) to particles (c) each lie between 7 : 1 and 4 : 1, and the proportions by weight of (a), (b) and (c) are chosen to give optimum packing density e.g. (a) : (b) : (c) may be 7 : 3 : 1. Particles (a) may be a precipitation-hardened Co/rare earth metal alloy containing 10-25 atomic per cent rare earth metal, balance Co, or Co and Cu, Fe or Mn. Particles (b) may be an alloy as (a) or a rare earth/ Co 5  compound, e.g. SmCos, PrCos or YCo 5 . Particles (c) may be as (a) or (b) or may be a Ba or Sr ferrite. The magnetic particles may be aligned and bonded by sintering, compaction or by an organic or inorganic binder. The rare earth/cobalt alloys may be tempered by a surface treatment, e.g. immersion in a Ni bath, by an acid treatment or by deposition of tin on the particle surface and diffusion into the particle. In Example (6) SmCo 3.5 Cu 1.5  (149-250Á and 37-53Á) and SmCo 5  (7Á) are mixed, impregnated with acetone and compacted in a mould while in a directional magnetic field. In (7) a pressed block as in (6) is impregnated in vacuo with curable epoxy resin. In (8) the SmCo 5  fraction of (6) is replaced by tin powder, and no liquid is used in the moulding, but the press mould is hammered to facilitate alignment of the magnetic particles. In (9) 3 size fractions of MMCo 3 Cu 2  are mixed, compacted and pressed in a magnetic field. In (10) a magnetic tile is pressed from methyl methacrylate, MMCo 3 Cu 2 , MMCos and barium ferrite. In (11) a mixture of SmCo 3.5 Cu 1.5 , MMCo 3 Cu 2  and PrCo 5  is pressed.
Patent GB-1521967-A (GB)
Title: Endless chain conveyors
IPC: B65G17/16
Filed: 1975-09-29
Abstract: 1521967 Endless chain bucket conveyers J M LEACH 29 Sept 1975 [27 Sept 1974] 42180/74 Heading B8A Buckets pivotally mounted on every fifth pivot 16 of an endless conveyer chain 10 are brought into correct upright orientation at a loading station (Fig. 1), by the action of a cam 23 rigid with each respective bucket, in conjunction with upper and lower cam follower surfaces 30, 31. The cam is deflected by one or both of the latter as the associated bucket approaches the loading station, and is rotated (Fig. 5) into a horizontal position trailing with respect to the pivot 16. Completely inverted buckets are overturned by engagement with a corrector flap 33. Chain guides 16, 18, permit the chain to be collapsed at the loading station so that the buckets move into close engagement with one another. This action is initiated by an extension on each chain pivot, engaging a cam surface 24. To limit the degree of collapse of the chain, each alternate link has interengaging stop surfaces 27, 28 adjacent each pivot of the link.
Patent GB-1111306-A (GB)
Title: Universal joint
IPC: F16D3/24
Filed: 1966-09-22
Abstract: 1,111,306. Universal joints. DANA CORPORATION. 22 Sept., 1966 [22 Oct., 1965], No. 42427/66. Heading F2U. A universal joint comprises rollers 36 each having a part spherical surface 38 engaging axially extending surfaces of an outer member and of a part spherical inner member 16 for the transmission of torque therebetween, and having an end surface 40 engaging an axial surface 22 of the outer member and a radially extending pilot portion 42 engaging a radial bore 32 in the inner member so that the roller axis is maintained radially with respect to the outer member. The arrangement does not maintain the roller centres strictly in the bisector plane, but they do not deviate greatly therefrom so that an approximately constant velocity ratio is obtained. The bores 32 are not circular, fitting the pilot portions 42 closely in the axial direction and with play in the peripheral direction. As shown in Fig. 3, the axial torque transmitting surfaces of the inner and outer members are formed by the cylindrical sides of axial grooves in the inner member and in a cylindrical cavity in the outer member. In a modification the cavity in the outer member has a part spherical portion co-operating with the inner member to prevent axial movement. In another modification the bore 32, instead of being provided directly in the inner member, is formed in an element carried by the inner member and which pivots relatively thereto, the pilot portion in this case being cylindrical instead of ball-ended. In the modification shown in Fig. 5, the outer member 50 is formed with inwardly projecting lugs 58, 59 providing axial torque transmitting surfaces 66 and the inner member is formed with lugs 70, 72 providing axial torque transmitting surfaces 78 so that alternate rollers transmit torque for one direction of rotation and the intervening rollers transmit torque for the other direction. Cylindrical or spherical surfaces 62, 63 of the outer member co-operate with spherical surfaces 74, 76 of the inner member.
Patent GB-1368423-A (GB)
Title: Recovery of metals from lead-containing scrap materials
IPC: C25C7/00
Filed: 1971-12-02
Abstract: 1368423 Lead recovery ELECTRIC POWER STORAGE Ltd 2 Dec 1971 [4 Sept 1970] 42484/70 Heading C7B A method of recovering lead and other metals e. g. antimony from a metal-containing material comprises in supporting the material on the cathode of an electrolytic cell, immersing the cathode together with an anode in the electrolyte and passing an electric current between them to reduce the material to the metallic state. Scrap material 13 from a lead-acid storage batteries in the form of fragments, grains, powder or paste rests on a steel cathode tray 11 in a vessel 10. Rods 12 serve both for lifting the tray and as cathode leads. Dendritic growth is inhibited by a porous diaphragm 14 of polyethylene or polyvinyl chloride. A plastics lattice 16 supports the anodes 18 each of which has a connector 19 leading to a common terminal 20. The anodes 18 may be lead, lead-antimony, or titanium. The elctrolyte may be sodium hydroxide. The reduced metal is removed from the cathode and consolidated by pressure. The cathode may be a conveyer belt, the reduced metal being fed into consolidating rolls and then into a bath of lead alloy for melting.
Patent GB-1503725-A (GB)
Title: Calcium sulphate hemihydrate compositions containing potassium sulphate
IPC: C04B11/00
Filed: 1975-10-16
Abstract: 1503725 Calcium sulphate hemihydrate compositions GIULINI GmbH Gebr 16 Oct 1975 42506/75 Headings C1A and C1H A calcium sulphate α-hemihydrate composition wherein at least 50% by weight of the hemihydrate has a particle size between 6 and 60 Ám and containing from 0À2 to 0À9% by weight, based on the hemihydrate, of potassium sulphate. The composition which is suitable for admixture with water to form a plaster may additionally contain liquefiers, e.g. those based on melamine and phenolic resins; hardening retarders as well as other known additives, e.g. antifoam agents, dyes, methyl cellulose, powdered quartz and fillers. The preferred weight ratio of composition and water is from 100:24 to 100:40 which mixtures may then be cast and hardened to form gypsum articles.
Patent GB-1026240-A (GB)
Title: Improvements in or relating to filling machines
Inventor: WEBB GEORGE ALBERT EDWARD
IPC: B65B65/02
Filed: 1964-10-20
Abstract: 1,026,240. Screw discharge of material. AUTOPACK Ltd. Oct. 20, 1964, No. 42689/64. Addition to 970,623. Heading B8S. Discharge screw 4 is driven for a specified number of rotations by twospeed motor 13 operating through drive 14, 5, 6 and 3. Shaft 5 also drives timer 12 through chain 10 and after the predetermined number of revolutions timer 12 operates two switches, one of which introduces a resistance to slow the motor and the other of which stops motor 13 and applies brake 9. Alternatively, the motor and control therefor may be hydraulic. These forms of drive for screw 4 are alternative to that set out in Specification 970,623.