baber/WOPTO huggingface dataset:
Patent GB-334343-A (GB)
Title: Improvements in rotary air compressors
IPC: F04C27/00
Filed: 1929-07-31
Abstract: 334,343. Hay, W. G. July 31, 1929. Fixed-abutment type; packing drums, vanes, abutments, and the like.-In a, rotary compressor of the outwardly-sliding vane type in which the vanes engage annular grooves in rotating end rings leakage behind the rings is prevented by diametral ribs 12, Fig. 3, which are recessed in slots in the inner walls of the compressor casing. The rings 8 bear on the ribs, but elsewhere there is sufficient clearance between the rings and casing walls to nullify the drag of the lubricating oil. When, as shown, the rings are recessed in the end walls, the ribs 12 may have extensions 14 which cover the outer peripheries of the rings 8. Whitemetal or other soft metal may be used for the ribs. Fig. 5 illustrates a modification wherein the packing pieces 23 are spring-loaded to allow for axial expansion of the rotor, and have spring-loaded pieces 27 inserted in pockets in the casing 15 and which bear on the L-shaped pieces 23 and the rings 21. Springs 28 are weaker than springs 24.
Patent GB-1460197-A (GB)
Title: Bearing assemblies
IPC: F16C33/78
Filed: 1974-05-28
Abstract: 1460197 Bearings C L FROST & SON Inc 28 May 1974 [29 May 1973] 23562/74 Heading F2A A rolling bearing assembly comprises an inner race 12, an outer race 14, an outer sealing ring 36 fixed to one race 12 with a radial edge extending to or in close proximity to the other race, an inner sealing ring 40 fixed to the other race 14 with an annular flange 56 extending towards the said one race and spaced inwardly of the outer sealing ring, and lubricant injection means 70 comprising an adaptor having a lubricating passageway formed axially therethrough and rigidly connected to the said one race to extend through the outer sealing ring. The assembly may comprise an intermediate sealing ring 38, to which the adaptor is attached. The inlet aperture of the adaptor may be provided with a spring loaded ball valve. The outer sealing ring 36 is formed at the margin with a drain hole through which any water which may penetrate the bearing through the clearance 106 is discharged. In a further embodiment (Figs. 5-7, not shown), the area around the aperture in the outer sealing ring in which the adaptor is positioned is dimpled so as to contact the intermediate sealing ring. The touching surfaces are held together by flanges formed on the adaptor.
Patent GB-330819-A (GB)
Title: Improvements relating to induction controllers and like controlling apparatus
IPC: H01F29/12
Filed: 1929-07-31
Abstract: 330,819. Electrical Apparatus Co., Ltd., and Barbour, R. H. July 31, 1929. Regulating transformers. - The interaction between a pair of windings X, Y arranged 90‹ apart on a stator S is varied by adjustment of a rotor R. The pole-pieces of both rotor and stator are slotted so as to cause saturation in the teeth thereby formed, thus minimizing disturbance of flux distribution by secondary load current, and reducing the inductance of the secondary winding. A short-circuited ring W is placed on the rotor to assist in reducing flux disturbance and inductance of secondary winding. The windings may be connected in series or they may be connected in separate primary and secondary circuits. Alternately, the primary winding may be arranged in two series-connected parts with the secondary winding connected to the point of interconnection of the primary parts. When arranged in this way the transformer may be used for starting and controlling A.C. motors as described in Specification 330,181, or it may be used for obtaining a gradual change of voltage from one tap to the next in a tapped transformer as shown in Fig. 2.
Patent GB-864627-A (GB)
Title: Torque transmitting or generating apparatus
IPC: B60L50/30
Filed: 1957-08-06
Abstract: 864,627. Transmitting mechanical power. BLISS CO., E. W. Aug. 6, 1957 [Aug. 30, 1956], No. 23596/60. Addition to 807,654. Divided out of 864,626. Drawings to Specification. Class 38 (4). The embodiments described in the Specification are substantially the same as those disclosed in Specification 864,626 except that A.C. and D.C. are applied to separate windings simultaneously, the relative strengths being varied to give a predominance of accelerating or decelerating torque.
Patent GB-533786-A (GB)
Title: Improvements in and relating to insulated conductors
IPC: H01B3/30
Filed: 1939-08-18
Abstract: 533,786. Glycol-citric acid condensation products; electric conductors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 18, 1939, No. 23876. Convention date, Aug. 20, 1938. [Class 2 (iii)] Copper wire, especially for use in electric machines and apparatus, is coated with a varnish prepared by a two-stage process from glycol and citric acid, the glycol being esterified in the first stage with a half equivalent quantity of acid and then with the other half equivalent quantity of acid in the second stage. The first stage is conducted at 140‹-195‹C. until an ester with an acid value of 5-10 is obtained ; the remainder of the citric acid is added and reaction continued at 140‹-160‹C., with stirring or in an inert atmosphere, until an acid value of 130-135 is reached. The resin is soluble in water, acetone, alcohol and customary varnish solvents and may be hardened at 135‹-150‹C. in a few hours, or in a few minutes at 125‹-160‹C. when mixed with 4 per cent. paraformaldehyde. Specification 22,449/12, [Class 2], is referred to.
Patent GB-783023-A (GB)
Title: Improvements in or relating to a method of making sporting cartridge cases having a synthetic body or bottom and cartridges obtained thereby
IPC: B29C67/00
Filed: 1955-08-19
Abstract: 783,023. Ammunition cartridge cases. PAULVE, M. L. A. Aug. 19, 1955 [Sept. 4, 1954], No. 23987/55. Class 9(1) A cartridge case moulded from synthetic plastic materials with a tubular wall 2 and integral base 3 having a central boss 4 extending into the case to accommodate the primer elements has a striker 8 embedded in the boss during the moulding process. Alternatively the striker may be fitted or screwed later into a recess formed during moulding. Flash holes 9 in the boss may be covered with a thin film 10 of plastic material formed during the moulding process or the holes may be covered later with a thin sheet of any suitable material. A primer cup 6 is placed in the cavity of the boss and secured by crimping the edges 11 of the cavity. In a modification, a metal sheath covers the case. The case may also be of cardboard with a base of plastic or an inner plastic coating. Specification 711,650 is referred to.
Patent GB-480868-A (GB)
Title: Improvements in or relating to devices for measuring or testing the pitch of gear teeth
IPC: G01B5/20
Filed: 1936-09-02
Abstract: 480,868. Testing pitch of gear teeth. BROWN & SONS (HUDDERSFIELD), Ltd., D., and MERRITT, H. E. Sept. 2, 1936, No. 34003. [Class 106 (ii)] Comprises two displaceable gauging members spaced apart to span a determined number of teeth and each having associated therewith an indicator, one of the members also having associated with it an adjustably fixed stop acting as a measuring point. The pillar a extending from a base a<1> carries a rotatable sleeve b having a T-slot b<1> along which are adjustable two bracket members c d which may be locked in adjusted position. Each bracket carries a lever c<1>, d<1> one end of which engages a tooth of the wheel G to be tested while the other contacts with the plunger c<2>, d<2> of a dial indicator c<3>, d3. A third bracket e carries a stop e<1> which may be adjusted so that the dial gauge d<3> gives an arbitrary reading. Springs c<4>, d<4> tend to hold the levers against stops c<5>, d<5>. The brackets are adjusted along the sleeve so that the distance between the gauging ends of the two levers corresponds to a multiple of the pitch of the gear to be tested. The member d<1> acts as a fixed measuring point and the indicator c<3> of the other gauging point shows the amount of error. The sleeve may be rocked to move the gauges clear of the wheel and the latter rotated to bring different portions to gauging position. In a modification for large wheels, the brackets are mounted on a slotted bar which is also provided with locating devices engaging the crown of the teeth and also the face of the wheel. The bar and gauges may be moved around the periphery of the wheel to gauge different parts.
Patent GB-1373482-A (GB)
Title: Master cylinder servo-booster
IPC: B60T13/14
Filed: 1973-05-21
Abstract: 1373482 Servo-boosters SOC ANON DBA 21 May 1973 [12 June 1972] 24110/73 Heading G3P [Also in Division F2] A brake master cylinder servo-booster has a servopiston 18 actuated by fluid in a chamber 22 controlled by a distributing valve 54, the valve being operated from a push-rod 30 through a follower mechanism comprising a lever 100  co-operating with the valve and the piston and a lever 98 pivoted on one end of the lever 100 and at the other end relative to the body, the push-rod acting on the lever 98 between its ends and on the piston directly if a pressure failure occurs. The piston 18 acts as in a known single or tandem master cylinder with a tilt valve or valves 24. As shown, the booster is in its idle position, wherein the distributing valve 54 has a spring-biased sleeve 64 blocking off fluid-flow from a pressure source e.g. a pump, but allowing small flow via a port 90 to a reservoir. Upon push-rod actuation, a oneway rotatable abutment formed by a groove in a pin 114 acts on the lever 98, passing through a longitudinal slot in the rod, to pivot it about a pin 104 in a clevis 106. A spring 110 biasing the clevis 106 prohibits clevis movement during power assisted actuation. The opposite end of the lever 78 moves the lever 100 which initially pivots about its abutment with the piston 18, by means of two cam surfaces 122, thus moving bearing parts 58, 60, of the valve 54 and by means of a spring 80, the sleeve 64 to open fluid communication for the pressure source via passages 92, 38 to a chamber 28 in the piston 18. Fluid then flows through a helical groove 50 in the push-rod (inside the piston) to the actuating chamber 22 to move the piston 18. Upon piston movement, the lever 100 pivots anti-clockwise to retract the valve sleeve 64 until equilibrium occurs, providing a multiplication factor in the ratio of piston to pushrod movement depending on the distances between the lever pivots. If the sleeve 64 jams, the pushrod actuation overcomes the force of the spring 110, since the spring 80 is in compression, and allows the piston 18 to be directly actuated through a damper 36. Sudden freeing of the sleeve 64 during such actuation does not cause abrupt inflow of fluid to the chamber 22, since the passage 38 is blocked by the bearing member 60 of the valve due to compression of the spring 80. The flow through the helical groove 50 may be replaced by flow via the clevis 106. Furthermore, the clevis movement during sleeve jamming may provide the blocking of fluid-flow to the chamber 22, similar to the action of the bearing member 60.
Patent GB-1022831-A (GB)
Title: Improvements in or relating to hospital beds
Inventor: FISHER LEONARD
IPC: A61G7/00
Filed: 1963-06-17
Abstract: 1,022,831. Hospital beds. VICKERS Ltd. June 17, 1964 [June 17, 1963], No. 24114/63. Heading A4J. A hospital bed comprising two rigid parts 1, 18, which may be sealed together to form a closed chamber, capable of being pressurised to three atmospheres, and in which the upper part 18 has a transparent dome 19 and has inlet and exhaust pipes 52, 53 for a gas, e.g. oxygen. The bed is angularly adjustable relative to a cradle 3 upon which it is pivotally mounted, by a hydraulic jack connected between the cradle 3 and the lower part 1. The upper part 18 may be detachable from or hinged to the lower part 1. In the latter case it is spring-loaded towards an open position defined by arms 30. The two parts 1, 18 are sealed together by lugs 43, 44 which interengage when the bed is closed and are clamped together by a U-shaped locking strap 32. The strap 32, whose upper horizontal limb has castellations covering the lugs 43 in the unlocked position, is displaceable around the lower part by a screw and nut device operated by rotating a handle 39. When locked the castellations cover the lugs 44. A flashing light is incorporated which operates when the bed is being closed and the strap is in the locked position.
Patent GB-1324907-A (GB)
Title: Covering plate for small electric hand-apparatus
IPC: B29C65/60
Filed: 1971-04-19
Abstract: 1324907 Electric razors CALOR 19 April 1971 [17 March 1970 12 Feb 1971] 24136/71 Heading B4B [Also in Division B6] A damping cushion for small electric handapparatus such as razors or vibro-massage devices comprises as shown in Fig. 1 a plastics plate 4 provided on its inner face with a plurality of pins 5 adapted to be engaged into corresponding holes 7 provided in the wall of the apparatus in order to be thereafter flattened or caulked on the other side of the wall so as to allow the covering plate to be held in position on the wall and having an outer lining sheet defining a close space between itself and the outer surface of the plate. The inner face of the plate may be provided with a plurality of flexible ribs 6. The plate and the lining sheet may be cast in a single piece so as to leave a hollow space between the sheet and the plate. The space may be filled with a flexible material such as foam plastics in which case the lining sheet is welded on the periphery of the plate. The plate may be made from polypropylene. The lining sheet may be made from plastics provided with an ornamental pattern or it may have the appearance of artificial leather.
Patent GB-321958-A (GB)
Title: Improvements in or relating to anti dazzle headlamps and the like
IPC: B60Q1/14
Filed: 1928-08-22
Abstract: 321,958. Palmier, G. H. Aug. 22, 1928. Adjusting reflectors from a distance; lenses.-The reflector P of a vehicle lamp is movable about horizontal and vertical axes and has a separately tiltable, cut-out portion M at the rear, and a lens L mounted on a vertical axis is adapted to be turned into the path of the beam when the reflector is dipped. Fig. 2 shows a front view of the lamp with the parts in the normal position, the reflector P being mounted on horizontal pivots A, A<1> on a ring H itrelf mounted on vertical pivots h, h<1> in bear ings X, X<1> on the lamp casing N. Brackets G, G<1> on the ring H form bearings for the pivots l, l<1> of the plano-convex or bi-convex lens L which has a lower opaque segment F. The lower pivot l<1> of the lens has an arm k<1> connected by a rod k to a member K fixed to the lower part of the reflector, so that when the reflector is dipped, Fig. 2, the lens is turned through 90‹. The cut-out portion M of the reflector is mounted on the reflector by pivots C, C<1>, the pivot C being connected by an arm D with a member B integral with the supporting ring H, so that it takes up the position shown in Fig. 2 when the reflector is dipped, projecting rays towards the ground in front of the vehicle. A horizontal screen I beneath the cut-out portion M prevents rays striking the lower rear part of the reflector. A spring R tends to dip the reflector, which is returned to the horizontal position by a Bowden cable. The supporting ring H is connected at Z, Z<1> with cables leading to one of the steering members of the vehicle. Instead of cables, compressed air, vacuum, or electromagnetic means may be used to operate the lamp.
Patent GB-1420306-A (GB)
Title: Mixing apparatus
IPC: B01F5/00
Filed: 1972-10-25
Abstract: 1420306 Mixing solids and liquids in flow ALBRIGHT & WILSON LTD 25 Oct 1972 24259/75 Divided out of 1420305 Heading B1C The invention relates to an apparatus for mixing together liquids and particulate solids, e.g. a Nitrogen-Phosphorus melt and particulate Potassium chloride in the production of NPK fertiliser and is substantially as the apparatus described with reference to Fig. 3 of the Specification 1420305 wherein a linear electrical conductor 13 is used to electrostatically charge the downwardly flowing particles with respect to an earthed skirt 9 thereby causing deflection of the particles onto a vortex of the liquid formed in the funnel 2.
Patent GB-400903-A (GB)
Title: Improvements in or relating to riding saddles and panels therefor
IPC: B68C1/02
Filed: 1933-09-01
Abstract: 400,903. Saddles. ILLSLEY, L. 0., 2, Market Place, Oakham, Rutland. Sept. 1, 1933, No. 24316. Addition to 390,677. [Class 62.] The composite panel described in the parent Specification is provided with a binding strip 10 of leather or pigskin which is stitched to the edge of the leather 2 and rubber 6 and passes over the edge of the felt 1 and is there secured. According to the present modification the strip 10 is applied to the leather and rubber and stitched at 10b with the grain side inwards. It is then folded at 10d so as to obscure the line of stitching and carried over the edge of the felt as before.
Patent GB-382980-A (GB)
Title: Swivel toast fork
IPC: A47G21/02
Filed: 1931-08-29
Abstract: 382,980. Toasting-forks. PASCAL, C. E., 242, Maryvale Road, Bournville, Bir. mingham. Aug. 29, 1931, No. 24329. [Class 28 (i).] In a swivel toasting-fork having a ball-and-socket joint, the socket D upon the handle A has one or more slots E cut out of it to allow the prongs G of the toasting-fork that are secured to the ball F to swivel to approximately 90‹ to the straight position. The ball may be pressed up within the socket by a spring B so that the pronged portion is retained frictionally in any position in which it may be set in the socket.
Patent GB-1496624-A (GB)
Title: Lathe having a rotary tool turret
IPC: B23B29/32
Filed: 1976-06-11
Abstract: 1496624 Turret lathes MANURHIN-AUTOMATIC SA 11 June 1976 [13 June 1975] 24420/76 Heading B3T A turret lathe having an indexable tool turret 30 mounted on a shaft 32 having an axis 12 parallel to the lathe spindle axis 10, means for moving the turret shaft along its axis for feeding a tool held by the turret, longitudinally with respect to the spindle axis and means for rotatably pivoting the turret to feed a tool carried by the turret, transversely towards or away from the spindle axis, the latter means controlling the angular movement of the turret to compensate for the difference between the peripheral and chordal distance travelled by the tool and the resulting change therein in distance between the tool and the axis 10 of the lathe spindle. The means for longitudinally traversing the tool turret is in the form of a ball screw mechanism 48, 54 the screw being rotated via gearing 44 from a motor 42. The means 64 for rotary pivoting of the turret to provide transverse feed (in-feed) of the tool The appropriate tool having been indexed to its operative position the means 64 is actuated to feed the tool transversely by part rotation of the turret. The means includes a forked member 66 securable to the turret shaft 32 and which has a pivotable nut 74 which is engaged by a feed screw 72 which is part of a drive means 68 which is pivotably mounted to arms 90a and 90b of a fixed housing 84. Operation of the motor 82 of the drive means 68 causes rotation of the feed screw 72 which displaces the nut 74 the means 68 and nut 72 simultaneously pivoting about axes 70, 78 respectively in the member 66 and frame housing 84, which causes the pivoting of the turret shaft 32 about its axis 10 to transversely feed the cutting tool relative to the spindle axis. In order to ensure the correct angular orientation of the feed means 68 and screw 72 a parallelogram linkage 92, 128, 118 and 122 is provided between the forked lever 66 and the drive means and positively determines the angular attitude of the drive means 68 on its stationary pivot 70 relative to the movable axis 78 of the forked lever 66. Fluid actuated peg and tooth means 102, 110 between the lever 66 and shaft 32 respectively ensures the location of the turret in the appropriate indexed position.
Patent GB-1253624-A (GB)
Title: Dereeling apparatus
Inventor: CLARK DONALD GEORGE
IPC: B65H59/04
Filed: 1969-05-14
Abstract: 1,253,624. Delivery flyers. AMP Inc. 1 May, 1970 [14 May, 1969], No. 24519/69. Heading D1J. A flyer arm 16 carrying a pulley 18 is fixed to a plate 9 pivoted at 10 to a bush, slidable on a shaft 4 coaxial with the spool 28 to be unwound, a bearing 22 rotatably mounted on the plate 9 running on a platen 6 or a flange of the spool. Thus, when the filament is withdrawn under tension, plate 9 is pivoted out of contact with platen 6, compressing a spring 15, and rotates with minimal friction. On reduction of the withdrawal tension, plate 9 drops into contact with platen 6 and the increased friction rapidly brings rotation of the flyer to a halt.
Patent GB-1075714-A (GB)
Title: Filter elements
IPC: B01D27/00
Filed: 1965-06-10
Abstract: 1,075,714. Filter element. GENERAL MOTORS CORPORATION. June 10, 1965 [June 10, 1964], No. 24541/65. Heading B1D. In Fig. 2, an oil filter element comprises a perforate centre tube 18, a resin impregnated filter, paper 33 pleated at 32, a metal retainer 20 with wings 28 and a plurality of radially directed openings 24, depth filter medium 34 (e.g. pellets with a hard nucleus and a more porous fibrous coating), a perforated casing 10, an end cap 12 with an opening 16, and an end cap 14 which may or may not have a central opening. In another embodiment (Figs. 3 and 4 not shown), casing 10 and retainer 20 are dispensed with, and the depth filter medium (53) comprises layers of felt which are denser towards the centre, the layers being joined by hot-melt adhesive so that they retain their shape. Another embodiment (Figs. 5 and 6 not shown) is similar to the last one except that the depth filter medium comprises the following layers impregnated with a thermo-setting resin; jute (72), cotton (74), cotton (76); and a paper overlay (78).
Patent GB-738830-A (GB)
Title: Locking nut
IPC: F16B39/286
Filed: 1952-10-01
Abstract: 738,830. Locking nuts. LEHRE, F. Oct. 1, 1952, No. 24574/52. Class 89(1). Lock nuts have two pairs of grooves 1, 2 and 3, 4 ninety degrees apart and spaced so that the three uncut sections of the nut are of equal thickness. The central section is permanently deformed by axial compression applied to the nut after tapping, as in Fig. 3. The width of the grooves is about equal to the pitch of the thread and they are preferably cut by a milling cutter so that they have a concave limiting surface leaving the connecting metal 8 thicker at the periphery than at the bore of the nut. The under-face of the nut may have an annular flange 13.