baber/WOPTO huggingface dataset:
Patent GB-1293285-A (GB)
Title: Optical glass
IPC: C03C3/068
Filed: 1971-05-14
Abstract: 1293285 Optical glass composition ERNST LEITZ GmbH 14 May 1971 [22 May 1970] 14954/71 Heading C1M An optical glass mix consists essentially of, in percentages by weight:  SiO 2 +B 2 O 3 +GeO 2  37-50 with SiO 2  #8 B 2 O 3  #12 GeO 2  #10 Li 2 O and/or Na 2 O #6 with ratio Li 2 O/Na 2 O approximately 6/1 ZnO and/or CdO #2 Al 2 O 3  and/or La 2 O 3  0-13 ZrO 2  3-8 Ta 2 O 5 +WO 3 +Nb 2 O 5  25-42 with Ta 2 O 5  #20, the balance of the mix, if any, consisting of other compatible constituents and impurities. Examples are given in which the refractive index varies from 1À6460 to 1À7330; the AbbÚ number from 44À8 to 37À1 and the anomalous partial dispersion from -3À0 to - 6À4.
Patent GB-256006-A (GB)
Title: Improvements in or relating to trusses for ruptures
IPC: A61F5/26
Filed: 1926-02-15
Abstract: 256,006. Pope, H. A. Feb. 15, 1926. Trusses.-A truss consists of a U-shaped spring wire A adapted to pass over the hip in a substantially vertical position and carrying a pad C at each eud, and a single flexible strap S connecting the pads passing around the other side of the wearer, one or both pads being pivotally fitted on the spring wire so as to be self-adjusting.
Patent GB-1241862-A (GB)
Title: A foamable mixture dispensing head
Inventor: ALDRIDGE JOHN BRIAN
IPC: B01F7/24
Filed: 1968-03-29
Abstract: 1,241,862. Mixing apparatus. VITAFOAM Ltd. 26 March, 1969 [29 March, 1968], No. 15093/68. Heading B1C. A mixing head primarily for dispensing polyurethane foam mixtures has in a collar 15 at least two pairs of feed inlet ports 17, 18 and 19, 20 and corresponding return outlet ports 17a, 18a, and 19a, 20a for the components of two mixture formulations. The inlet ports are connected to the mixing chamber 13 by passages 21; valves 22 alternatively open pairs of passages 21 to the mixing chamber or to the return outlet ports. The valves for each formulation are actuated by hydraulic or pneumatic cylinders 21, 31 through sliding sleeves 24, 30. There is an additional inlet port 16 for a solvent cleanser. The mixing chamber may have a helical agitator 12. The valves may be electrically or electronically controlled.
Patent GB-357513-A (GB)
Title: Improvements in controlling mechanism for winding-engines
IPC: B66C13/56
Filed: 1930-05-16
Abstract: 357,513. Safety-control of winding- engines. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 16, 1930, No. 15102. Convention date, May 18, 1929. [Class 78 (v).] Control gear for a three-phase winding-engine, in which the lever 11 for resetting the emergency brake is locked until the motor control lever 15 is brought in neutral position and the motion-brake lever 13 is in the brake-fast position, is arranged so that after resetting the emergency brake and returning the lever to its normal position, the motor control lever and the motion-brake lever can be moved independently for starting and controlling the winding gear. While the emergencybrake lever is moved out of its normal position for re-setting the brake, the motor-control lever and the motion-brake lever are locked. Specification 10600/11, [Class 78 (v), Winding and paying- out apparatus &c.], is referred to. As shown in Fig. 1, the lever 11 is in its normal position, the emergency brake having been applied automatically or by hand. The motion-brake lever 13 is " off " and the motor-control lever 15 is " on." Levers 19, 17 on a spindle 18 engage respectively with a slot 16 on the lever 15 and with an abutment 11a on the lever 11 so that the lever 11 cannot be moved in the direction of the arrow until the lever 17 is turned downwards. An arm 23 on the lever 17 bears, in one direction only, on a lever 21 loose on the spindle 18, and operated by a slot 14 on the motor-control lever 13. Before re-setting the emergency brake, therefore, the driver must apply the motion brake, thus lowering the arm 21, and bring the motor-control lever 15 into neutral position, thus lowering the lever 17. On moving the lever 11 for re-setting the emergency brake, the sector 12 engages the end of the lever 17 holding it in the lowered position, so that the levers 13, 15 are locked until the lever 11 is returned to the position shown. The lever 11 is returned to this position by a weight &c., while the emergency brake remains in the set position, and owing to the shape of the slots 14, 16, the levers 13, 15 can now be moved independently for re-starting and controlling the winding-engine. As shown in Fig. 3, the lever 19 and slot 16 are replaced by the toothed gear 36, 39 and locking disc 38.
Patent GB-644589-A (GB)
Title: Electrical conductor unit
IPC: H01B7/08
Filed: 1947-06-09
Abstract: 644,589. Cables. PIERCE FOUNDATION, J. B. June 9, 1947, No. 15129. Convention date, Jan. 30, 1942. Addition to 561,728. [Class 36] An electricity conductor unit comprises two solid or tubular parallel conductors 30 around each of which is folded a marginal portion of an initially flat sheet 1 of thermosetting insulating material, the marginal portions 31a of the sheet being secured to the part 31b intermediate the conductors. The insulation may be made rigid by a subsequent curing process such as passage between a roller and a flat anvil, both being heated.
Patent GB-420300-A (GB)
Title: Improvements in and relating to means for controlling electric circuits
IPC: B63H1/12
Filed: 1933-05-25
Abstract: 420,300. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Suits, C. G.; 1740, Union Street, Schenectady, New York, U.S.A.) May 25, 1933, No. 15170. Convention date, May 26, 1932. [Class 38 (iv)] The windings of electroresponsive devices, e.g., relays, are supplied with voltage from a circuit comprising a saturable inductance in parallel with a condenser so that small current variations at a critical current value produce large voltage variations in the circuit to render the relay more sensitive to current variations. A resistance may be connected in series with the saturable inductance. In the form shown in Fig. 1 the circuit comprising a resistance, saturable inductance and condenser 11, 12, 13 is connected in series with the load 14. In a modification the circuit is transformer coupled, the transformer secondary acting as the saturable inductance. In a further modification of this, two circuits are used, their outputs being connected in series opposition through the relay, &c. This arrangement gives a response curve as shown in Fig. 7.
Patent GB-182296-A (GB)
Title: Improvements in or relating to railway signal and other oil lamps
IPC: B61L9/02
Filed: 1921-06-01
Abstract: 182,296. Railway Supplies Co., Ltd., Linley, Ltd., S., and Wake, R. June 1, 1921. Reservoirs, attach. ing to lanterns.-In a railway-signal or like lamp of the kind in which side cheeks projecting upwardly from the bottom constitute guides between which the oil reservoir slides, means are provided whereby, prior to the cheeks being permanently secured to the lamp bottom, the position of the cheeks on the bottom and relatively to each other is mechanically determined to ensure the proper alignment of the burner, lens, a n d lamp support when the reservoir is in place. The bottom 1 of the lamp is provided with slots 8 into which fit tenons 9 on the side cheeks 2, the lower portions 10 of the tenons being bent at right-angles to engage the under-side of the bottom 1. The portion of the cheek 2 between the tenons 9 is bent at right-angles to the opposite side thereof to constitute portions 11 which rest on the upper face of the bottom 1. A stiffening- web 14 may be arranged to support the upper part 12 of the cheek 2.
Patent GB-529134-A (GB)
Title: Improvements in the oxidation of propenyl benzine derivatives
IPC: C07C45/28
Filed: 1939-05-23
Abstract: 529,134. Oxidation of propenylbenzene derivatives. STAFFORD ALLEN & SONS, Ltd., and WEST, T. F. May 23, 1939, Nos. 15268 and 28810. [Class 2 (iii)] In the oxidation of propenylbenzene derivatives by nitrobenzene in the presence of caustic alkali, a glycol, glycol ether, polyglycol or polyglycol ether is used as diluent. The diluent may also be used in the isomerization of allylbenzene derivatives to propenylbenzene derivatives, preceding the oxidation, as described in Specification 525,705. In examples, eugenol is heated with caustic potash, diethylneglycol monoethyl ether or tetraethylene glycol and triethanolamine, and after cooling to 140‹ , nitrobenzene is added ; vanillin is obtained. Azobenzene is a by-product of the process.
Patent GB-917763-A (GB)
Title: Wax compositions
IPC: C08L91/08
Filed: 1960-05-02
Abstract: A wax composition comprises by weight (a) 45-70%, preferably 55-65%, of a refined paraffin wax of melting point 50 DEG -63 DEG C., (b) 20-30%, preferably 22-27,5%, of a plastic paraffin wax of melting point 42 DEG -47 DEG C., preferably 43 DEG -45 DEG C., (c) 5-35%, preferably 7,5-15% of a heavy distillate wax of melting point 63 DEG -79 DEG C., preferably 68 DEG -73 DEG C., and (d) 0,05-5%, preferably 0,1-0,5% of a polyolefin, e.g. polypropylene, polybutylene, polyisobutylene, but generally polyethylene, having an average molecular weight of 1,000-100,000, preferably 1,500-4,000.  The refined paraffin wax (a) may suitably consist of 5-20%, preferably 7,5-15%, of a refined wax of melting point 50 DEG -54 DEG C. and 40-65%, preferably 45-55%, of a refined wax of melting point 57 DEG -63 DEG C. to make up the total of 45-70%.  The composition may also include 10-20% of a residual microcrystalline wax, and may be used for waxing food and milk cartons.  U.S.A.  Specification 2,153,553 also is referred to.
Patent GB-583967-A (GB)
Title: Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp
IPC: B30B9/12
Filed: 1944-08-11
Abstract: <PICT:0583967/IV/1> Fibre pulp, produced by the chemical digestion of wood or other fibrous material, for use, for example, in the manufacture of paper, is treated for the removal of chemicals in an apparatus comprising a constrictive permeable passage for confining the pulp as it leaves the digester, means for expressing chemical-laden liquid by pressure, means for thickening the stock into a magma, and means for introducing liquid extractant for chemical as the pulp passes from the feed-in portion of the passage into a succeeding portion in which liquid is expelled from the cake by displacement by the extractant.  Pulp from a digester 11, Fig. 1, is fed to a perforated tubular housing 26, surrounded by a casing 17 and is conveyed by a pressing screw 16 in a screw channel of progressively reduced cross-sectional area on the feed in portion thereof.  Liquid expressed from the pulp passes through the housing 26 to a pipe 43, whence it may be passed through a valve 45 either to a recovery plant through a tube 47 or to be led away as desired through a pipe 48, or to be returned to dilute the pulp leaving the digester 11.  The magma formed in the feed in section of the screw channel passes into a succeeding section at the opposite side of a partition 31 in the casing 17.  At the junction of the two sections the depth of the screw-thread increases abruptly and extracting liquid is introduced through holes X from an internal bore 38 in the screw 16 to displace partially the liquid in the pulp.  The latter liquid passes through the housing 26 to be collected through the pipe 44 for disposal in the alternative means used for the liquid from the pipe 43.  The treated pulp leaves the apparatus through a hood 18 containing a rotating paddle 24.  In a modified construction, the rotary screw 16 may comprise a number of sections in addition to the feed-in section, the depth of the screw-thread being increased abruptly at the junctions of the sections where the extracting liquid is introduced.  A number of constructions of either form of apparatus may be assembled to treat the pulp in a succession of chemical removing operations, means being provided for diluting the pulp as it leaves one construction to enter the next.
Patent GB-679769-A (GB)
Title: Improvements in or relating to lifting magnets
IPC: H01F7/20
Filed: 1950-06-20
Abstract: 679,769. Electromagnets. IGRANIC ELECTRIC CO., Ltd. June 20, 1950 [June 20, 1949], No. 15389/50. Class 35. In a lifting magnet the annular coil 11 is made readily removable from the magnet frame by sealing it within an enclosure comprising a magnetic core member 12 of sleeve form to receive the inner pole projection 2, an annular top plate 13 of magnetic material, an annular bottom plate 14 of non- magnetic material, and an outer shell 15 of magnetic material, the members comprising the enclosure being secured together by means of welding. The terminal pins 23 for the coil extend through spaced pipe extensions 24 which are screwed into the top plate 13, and are provided with an insulating top cap 25, the pins 23 being connected by a flexible connector to binding posts 45, enclosed in a removable terminal box 43. The coil is sealed within the enclosure by a suitable insulating fill forced through an opening 30 provided with a screw plug 30<SP>1</SP>, a similar opening provided with a screw plug permitting the escape of air during the operation. The coil unit is held in position within the annular recess 4 in the magnet frame 1 by an annular coil shield 10 of non-magnetic material which extends between the pole shoes 6 and 8, and in its free state is slightly dished, as shown in Fig. 3, and has spaced radially-disposed ribs 32 on the underside. The outer edge of the coil shield is held in position by a retaining ring 38 which is secured within a recessed portion of the pole shoe 8 by spaced welded connections 40 and the inner pole shoe 6 is formed to fit within the opening of the shield and provides a shoulder 34 to support the underside of the shield, which is thus flattened against the underside of the coil unit to hold it in position. An asbestos pad 36 is placed between the coil shield and the bottom of the coil unit.
Patent GB-333614-A (GB)
Title: Improvements in or relating to feeding devices for planting and other machines
IPC: A01C11/02
Filed: 1929-05-16
Abstract: 333,614. Pomieraniec, I. May 16, 1929. No Patent granted (Sealing fee not paid). Endless-belt conveyers with lath carriers.-A feeding- device for planting and other machines comprises two endless bands having parallel co - planar tracks for conveying plants or other articles lying across both, the two conveying tracks terminating at different points in their line of travel. The conveyer tracks are horizontal, inclined, or curved, and are. driven at the same speed. The shorter band is caused to deviate sharply from its conveying path at the end thereof, so that finally the articles are supported by one band only with their ends projecting laterally ready to be engaged by a gripping-device. The bands a, c may consist of rigid links b hinged together and each provided with a front wall t. Hinged flaps, or spring, gravity, or positively controlled retaining devices, may be fitted to the links of the longer band a to prevent slipping of the plants &c. until the gripper comes into action. The grippers may consist of L-shaped members g co-operating with the rim of a carrier wheel S as described in Specification 306,384, [Class 6 (i), Cultivating implements &c.]. The shorter of the two adjacent bands passes round a small roller k and the longer band a round a larger roller w, the two rollers being mounted as shown relative to the wheel S.
Patent GB-1391472-A (GB)
Title: Structural beams
IPC: E04B7/02
Filed: 1972-04-04
Abstract: 1391472 Roof or floor structures H J WELZ 4 April 1972 [2 April 1971 23 Dec 1971] 15423/72 Headings E1K and E1W A roof or floor structure is of cellular construction and consists of a beam formed by upper and lower sheets 112, 114, preferably of zinc-coated steel sheeting, at least the upper sheet being of profiled section, so as to define with the lower sheet a series of enclosed spaces each extending longitudinally of the beam, and there being a plurality of longitudinally extending parallel ribs and grooves on at least the lower sheet associated with each of the enclosed spaces. In the embodiment of Fig. 1, both sheets are profiled and have grooves 124 and ribs 126 in their horizontal portions 122, the sheets being joined by welding together opposed flanges 128, 130 of the respective sheets. These flanges may also be welded at their edges 125 to similar flanges on another pair of sheets arranged side-by-side with the first pair so that a continuous structure providing a series of ducts 22 is provided. The ducts may be used for ventilating air and may communicate with the space below the structure via apertures 146. The ducts may alternatively be filled with insulating material or house electrical installations. In Fig. 2, a plate 140 divides the ducts so that a lower portion below the plate can have heating or cooling water circulated through it, the water being supplied via an inverted channel formed in the plate 140 and extending transversely to the grooves 124 (Fig. 4, not shown). The water may supply sprinklers of a sprinkler system. In the embodiment of Fig. 2 at least some of the inverted channels formed by the ribs 126 are of trapezoidal section and are filled with sound damping material 172.
Patent GB-610592-A (GB)
Title: An improved construction of bottom bearing for damping humming noises in electricitymeters
IPC: G01R11/12
Filed: 1946-05-22
Abstract: 610,592. Bearings. LANDIS & GYR SOC. ANON. May 22,1946, No. 15507. Convention date, May 28, 1945. Addition to 508,642. [Class 12 (i)] A footstep bearing for use in electricity meters as described in the parent Specification comprising a cup member 18 supported with limited freedom in the fixed part 6 of the footstep bearing by means of a leaf spring 12, has the meter spindle of the bearing secured against displacement from the cup member by means of a cap 21 enclosing the lower end of the spindle and screwed on to the non-rotating part of the bearing. The meter spindle 16 is provided at its lower end with a tightly fitting sleeve 19 holding a ball 20, the whole assembly forming the running part of the bearing. The cap 21 which is milled or knurled for manipulation screws on to a support 17 and presses a hard fabric guard ring 25 against the bearing cup member 18. A collar 23 on the sleeve prevents withdrawal of the spindle through the shouldered aperture 22 of the cap. In an alternative arrangement, a bearing cup may be attached to the running part of the bearing and a ball may be attached to the non-rotating part of the bearing.
Patent GB-443938-A (GB)
Title: Improvements in or relating to refrigerating cabinets and like chambers
IPC: F25D19/00
Filed: 1935-05-28
Abstract: 443,938. Refrigerators. CALATRONI, E., 10, Rue Baudin, Paris. May 28, 1935, No. 15533. Convention date, June 27, 1934. [Class 29] [See also Group XXVIII] The compression refrigerating-machine of a cabinet is housed in the removable door of the cabinet. The condenser 7, compressor 8, and the evaporator 9 are supported by a frame 3 secured by bolts 2 to the door, the evaporator compartment being separated from the compressor and condenser compartment by a heat-insulated partition 10. The air within the cabinet circulates through the evaporator compartment, while outside air passes through the other compartment. The evaporator includes ice trays surrounded by refrigerant supplied through a coiled pipe 25. The compressor includes an electric motor, the rotor 11, Fig. 5, of which is mounted upon the fixed cylinder 12, the piston being reciprocated by a plate cam 14 the periphery of which coacts with forks 15 carried by the rotor. The outer end of the piston, which is provided with a vapour inlet port, carries the plungers 17 of a lubricant pump. The piston may consist of an electromagnet.
Patent GB-155504-A (GB)
Abstract: 155,504. Hall, G. L. May 3, 1920. Bezels.-A clock glass which carries electric contacts operated by the hour hand is held in place on the case by a flanged ring 30 and setscrews 31.
Patent GB-180566-A (GB)
Title: Improvements in or relating to barrels or drums
IPC: B65D8/14
Filed: 1921-06-06
Abstract: 180,566. Taylor, W. June 6, 1921. Metal barrels; heads.-The halves of a barrel or drum are connected, or the head is fitted on to a barrel, by securing to each of the parts to be connected together a band 2, Fig. 1, from which project groups of axially arranged lugs or fingers 3 adapted to interfit as shown and formed with inward projections 4, Fig. 4, so that pairs of curved tapered keys 7 can be driven in to engage the projections and so secure the parts together. The faces of the bands 2 are preferably shaped to accommodate a bevelled metal packing-ring 5, Fig. 4. To enclose the joint a two-part hoop 8, Fig. 1, internally grooved to take over the bands is provided and forms a convenient rolling hoop.
Patent GB-239635-A (GB)
Title: Pectin product and process of producing same
IPC: C08B37/06
Filed: 1924-06-28
Abstract: Pectin is precipitated from a colloid solution by the addition of a colloid having an electric charge of opposite sign to that of the pectin such as aluminium hydrate.  In preparing pectin suitable for precipitation by this method chopped citrus peel is heated to 100 DEG C. for not more than ten minutes to destroy enzymes which would damage the pectin, and then washed with hot, but not boiling, water. The pectin is then extracted with water at 80-90 DEG  C. acidified, preferably with sulphurous acid, and the extract filtered with the aid of paper pulp centrifuged or decanted.  The solution is then rendered slightly alkaline, preferably with ammonia, and a suitable salt, such as magnesium sulphate, alum, or aluminium sulphate, added, or aluminium hydrate may be formed by adding a salt, such as aluminium acetate, which dissociates readily in presence of water. The precipitate is then washed to remove the metallic salt, dried, and ground.  The aluminium hydrate may be removed by washing with a mixture of alcohol and hydrochloric acid.  Jelly can be made by adding to a solution of the pectin so prepared sugar and citric or tartaric acid.