baber/WOPTO huggingface dataset:
Patent GB-264905-A (GB)
Title: Improvements in telephone systems
IPC: H04Q3/00
Filed: 1925-10-22
Abstract: 264,905. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), Chanter, A. J., Hartley, G. C., and Moscrip, W. R. Oct. 22, 1925. Automatic exchange systems.-A group selector having two sets of wipers which are connected up, respectively, over front and back contacts of a single relay is provided with circuit arrangements such that (1) the change-over relay acts also as a test and stepping relay for one of the sets of wipers, and (2) the wiper - connecting relay energizes initially over one test wiper and completes a locking circuit for itself to the same wiper. In the selector shown, incoming impulses are repeated by relay A over contacts A6, B6, S5 to the vertical magnet V in series with the lower winding of relay C which short-circuits its upper winding to render it slow-releasing during impulsing. At the end of the digit, the relapse of relay C completes a circuit for the rotary magnet R which rotates the wipers one step and closes its contacts W. If test wiper P2 encounters a busy terminal, the wiper-discriminating relay Q energizes and locks over this wiper, remaining thus locked as long as busy terminals are found. Relay Q connects up wiper PI and if this wiper also is resting on a busy terminal, a circuit is completed over contacts W for the upper winding of relay C. This relay, which thus acts also as a test and stepping relay, only operates its contacts 6 at this time so that the slow-release feature is not brought into action. Relay C opens the circuit of magnet R which in turn de-energizes relay C so that the wipers take a further step. If wiper P1 reaches an idle terminal, switching relay H operates over the circuit YA, C, W, H, S9, B10, locks up directly over resistance YA, and maintains relay Q locked up over contacts H5, Q12, B10. If wiper P2 reaches an idle terminal, relay Q releases, connecting up the other set of wipers, and switching relay H energizes as before. If both test wipers reach idle terminals at the same time, the second set of wipers have preference owing to the release of relay Q. If all trunks encountered by both sets of wipers are busy, the wipers pass to the end of the bank where springs S are operated to connect a busy-flash signal consisting of alternate battery and earth to the lower winding of relay A, the release relay B being held up during the intermittent release of relay A by the synchronous application of intermittent battery over lead BH. In a modification, the short-circuiting contacts of relay C may be replaced by normally-closed contacts of relay Q since relay Q is de-energized during impulsing to maintain the short-circuit but is energized continuously during hunting to remove the shortcircuit thereby rendering relay C quick-acting.
Patent GB-162993-A (GB)
Title: Educational device
IPC: G09B17/00
Filed: 1920-09-16
Abstract: 162,993. Runyan, A. L. Sept. 16, 1920. Word-building, number-building, and like apparatus.-A keyboard magazine apparatus is provided for selectively displaying charactered blocks for teaching spelling, reading, arithmetic, &c. The apparatus comprises a row of magazine channels 14 each containing a column of thin rectangular blocks 15, an inclined support 12 on which the selected blocks can be assembled, a guideway 25 in advance of the magazine channels containing one. of each of the blocks, and plunger mechanism associated with keys 28 for lifting the blocks in the guideway 25 on to the support 12, and for replacing the ejected blocks by others from the corresponding magazine channels. Each key-lever 27 actuates a bell-crank lever 22 pivoted at one end to a plunger 23 working through the guideway 25, and having loose connection at the other end with a plunger 17, which normally supports the column of blocks in the magazine channel, and recedes on depression of the key, allowing the column to descend so that the lowermost block is in position for advance into the guideway 25 on release of the key. The support 12 is formed with a number of steps or ledges 13 for assembling the blocks in lines; or the blocks may be made to adherer magnetically to a sheet-iron support. Slots 16 are provided in the upper edge of the support for distribution of the blocks into the magazine channels, which are marked with the appropriate characters at their upper ends. The blocks may bear different characters on opposite faces, the keys and magazine channels being correspondingly marked.
Patent GB-967501-A (GB)
Title: Apparatus for coating sausage portions,joints of meat and other meat products
IPC: A23L13/60
Filed: 1961-07-21
Abstract: 967,501. Coating sausage portions, chops, fish &c. P. H. HILGELAND. July 19, 1962 [July 21, 1961], No. 26622/61. Headings A2B and A2D. [Also in Division B8] Pre-shaped sausage portions, chops, small joints of meat, fish fillets and fish fingers, and other meat products are covered with an edible artificial skin in an apparatus having means for coating the products with a solution of an edible coagulable substance, for treating the coated products with a coagulating agent and for drying the products with coagulated coatings, and a conveyer system positioned to receive the products initially and to convey them during the coating, treating and drying steps. Sausages, cut-off by a device 41, preferably that described and claimed in Specification 967,502, from sausage meat extruded from a portioner filler 40, whilst on a conveyer 42 are sprayed for one second with a ¢ to 5% solution of sodium alginate circulating through a spray nozzle 43 and then drained for five seconds, whilst moving along conveyer 48 for 25 seconds are sprayed with a 10% solution of calcium chloride circulating through nozzles 51, and finally are dried for about a minute by a stream of hot air followed by a stream of cold air supplied to a tunnel 52 through which the products pass on a conveyer 49. The edges of the belts 42, 48, beneath the spray nozzles are preferably bent upwards by rollers (not shown) so that the belt is U-shaped to improve the coating or treating. The driven rollers 47a, b and 50a, b, between the conveyers further assist in the draining of liquid. In alternative embodiments the conveyers may be disposed at right angles to one another and the sprays replaced by the conveyance of the products through tanks of liquid. Specifications 902,100 and 923,680 also are referred to.
Patent GB-865035-A (GB)
Title: Electrical connector
Inventor: HUBBELL HARVEY
IPC: H01R13/20
Filed: 1959-08-05
Abstract: 865,035. Two-part couplings. HARVEY HUBBELL Inc. Aug. 5, 1959, No. 26695/59. Class 38 (1). An electrical connector comprising contacts 15 mounted in recesses 14 in a resilient body member for engagement by blade contacts of a mating cap, has an apertured rigid insulating plate 35 moulded into the body member to interlock with the blades of an inserted cap when the latter is rotated relative to the body member. As shown, a resilient body member 10, e.g. of natural or artificial rubber, has contacts 15 each comprising spring blades or plates 16, 17 which are connected to lead wires 22 of a cable 23 and are accessible to the cap contacts by way of arcuate slots in the lower end of member 10, one of the slots having an offset for positioning purposes. The plate 35, which may be of plastics material, has corresponding blade entry slots 36, 37, 38, Fig. 5, and each blade contact 18, Fig. 4, of cap 19 has a shouldered terminal portion 34 which engages behind the plate 35 when the cap and body are relatively rotated. Holes 39 are formed in the plate 35 for the passage of screws securing the member 10 to a head member 12 and peripheral gaps 40 are provided to allow the inflow of the body forming material for the purpose of anchoring the plate in position.
Patent GB-1499899-A (GB)
Title: Bonded non-woven fabrics
IPC: D04H3/03
Filed: 1975-06-24
Abstract: 1499899 Polypropylene filaments E I DU PONT DE NEMOURS & CO 24 June 1975 [24 June 1974] 26770/75 Heading B5B [Also in Division D1] An autogeneously bonded non-woven fabric of isotactic polypropylene filaments comprises a layer M at each surface in which the filaments are preferentially orientated in the machine direction and a layer X, constituting 40 to 60% of the total fabric weight, in which the filaments are preferentially orientated in the cross machine direction, each layer consisting of 65 to 90% by weight of matrix filaments and 10 to 35% of lower melting binder filaments, or of filaments having matrix and binder segments in the above proportions, the matrix filaments of the M layers having an average denier of 6 to 20 and a tenacity of at least 2 gm./denier and the matrix filaments of the X layer having an average denier of 26 to 60 and a tenacity of at least 3 gms/denier which is at least 10% higher than the tenacity of the matrix filaments in the M layer, the filaments being disposed so that the ratio MD/45 is at least 1À5 where "MD" is the total length of filament lengths that are in the machine direction and "45" is the total length of filament lengths that are in the bias direction, and XD/45 is at least 1À5 and (MD+XD)45 is 3À5 to 30. The ratios are obtained by the randometer light scattering method described in Specification 1,244,754. Melt-spun polypropylene filaments 4 are quenched by a counter current of air as the pass through elliptical cross-section flow restrictors 5, 6. The elliptical bundle of filaments becomes a ribbon of parallel filaments as it passes over roll 22. The filaments are drawn by passage over rolls 23-27, each roll rotating faster than the proceeding one. Roll 25 and optionally roll 23 is heated. Roll 25 has grooves running along its surface in the axial direction. Segments of the filaments which touch the hot surface of the roll between grooves are additionally drawn and thus increased in tenacity compared to the segments suspended over the grooved portions. The latter become the binder segments. The filaments are electrostatically charged at corona charger 29 and laid on to travelling belt 41 by air jets 30. A pulse of air is supplied at the jet exit alternatively from one side of the ribbon of filaments and then from the other to deflect the ribbon back and forth, thereby depositing filaments predominantly aligned in the crossmachine direction. Similar jets or lines of jets (Fig. 3, not shown) are disposed in front of and behind the cross laying jets but are turned through 90 degrees to produce the machine direction (M) layers. The web is thermally bonded by passage through the nip formed by a resilient roll and a perforated steam emitting roll, the calender of U.S. Specification 3,313,002 being used. The binder segments have an elongation at break of 400 to 800%.
Patent GB-907493-A (GB)
Title: Improvements in or relating to methods of and apparatus for evacuating trash from carding machines
Inventor: SUMMERSCALES JOHN BROMLEY
IPC: D01G15/82
Filed: 1959-08-05
Abstract: 907,493. Removing trash from carding engines. CARRIER ENGINEERING CO. Ltd. Aug. 2, 1960 [Aug. 5, 1959], No. 26797/59. Addition to 872,288. Class 120 (3). Trash from the main cylinder, taker-in and doffer of a carding engine is evacuated by mechanically thrusting the trash through an outlet in the carding engine housing into a zone wherein a momentum change in the external air movement is created By locating a partition 19 in a suction duct 12 a reversal of direction of the current of air drawn through inlets 23 is created sufficient to entrain trash 14 delivered by a conveyer 8.
Patent GB-173060-A (GB)
Title: Processes of making sulphuric acid
IPC: C01B17/82
Filed: 1920-09-20
Abstract: 173,060. Reed, C. J. Sept. 20, 1920. Sulphuric acid; nitro-sulphonic acid. - A gaseous mixture of sulphur dioxide, nitric oxide, or other higher oxide of nitrogen, and air or oxygen is heated, for example, to 200-400‹ C. and the resulting compounds produced by the union of sulphur trioxide with the nitrogen oxides are absorbed in concentrated sulphuric acid. Sulphuric acid is liberated and nitrogen oxides recovered for re-use by treating this solution, preferably on a separate apparatus with water equivalent to the sulphur dioxide used. Sulphur dioxide and air pass through the pre-heater N to the reaction chamber A, heated by the gases from the furnace Q. The addition compounds of the nitrogen oxides and sulphur trioxide are absorbed in the packed tower F fed with concentrated sulphuric acid, and the solution passes through the liquid seal L to the vessel I maintained at a temperature a little below the boiling- point of sulphuric acid, and in which the solution is decomposed. The necessary amount of water is supplied from the vessel E and the escaping nitrogen oxides pass into the reaction chamber through the pipe D. Sulphuric acid is withdrawn at K, and the removal of nitrogen oxides is facilitated by allowing air to enter through the cock R. Alternatively the solution of the compound of sulphur trioxide and nitrogen oxides in sulphuric acid may be solidified by cooling, e. moved from the system, and treated as above described. Also, air or oxygen, sulphur dioxide, and a higher oxide of nitrogen may be brought together in the presence of sulphuric acid at the necessary temperature and the resulting solution decomposed as before.
Patent GB-774813-A (GB)
Title: Molded abrasive articles and method for producing them
IPC: C08L61/10
Filed: 1954-09-16
Abstract: In making a moulded abrasive product, such as a grinding-wheel or disc, an abrasive grit is wetted with a liquid heat-hardenable phenol-aldehyde resin by mixing it therewith, the wetted grit is then mixed with a chopped rag filler and, as bonding resin, a heat-hardenable synthetic resin precondensate or with a chopped rag filler impregnated with the precondensate, and the mixture is subjected to a hot pressing operation in a mould cavity.  Liquid condensates specified are the A-stage condensates of phenol or cresol with formaldehyde or acetaldehyde.  Bonding resins specified are the above liquid-condensates, condensates of furfural per se, furfural with phenol, urea and/or thiourea with formaldehyde, glycerol with phthalic acid unmodified or modified with amine-aldehyde resins; cresylic acid-modified phenol-formaldehyde and aniline-formaldehyde resins; condensates of melamine, 2,4,6-triethyl- and triphenyl-triamino 1,3,5-triazines, 2,4,6-trihydrazo-1,3,5-triazine, melam, and melam with formaldehyde; and any mixture of the above resins.  The filler is preferably cellulosic, e.g. cotton or regenerated cellulose.  Other fillers, e.g. clay, asbestos fibres, glass particles or fibres, mica, mineral wool, cotton fibres or other natural or vegetable fibres, may be added.  Abrasive grits specified are alumina, emery, corundum, dense regular fused alumina, porous white alumina, silicon carbide, quartz, glass, garnet and diamonds, or any mixture thereof.  The bonding resin and filler may be added separately in any order or simultaneously to the wetted grit; preferably the rag filler is impregnated with the resin, dried and disintegrated.  In general the product may contain 50 to 85 per cent grit, 12 1/2 to 25 per cent of heat-hardened resin, 1/5 of which is the phenolic resin used for wetting the grit, and 2 1/2 to 25 per cent filler, at least 9/10 of which is the chopped rag filler.  Mould lubricants, dyes, pigments and inorganic cements may also be added in amount up to 10 parts per 100 parts of the moulded product. The moulding may be faced with layers of fabric, e.g. heavy canvas or duck and/or be reinforced with one or more such layers disposed within the body of the moulding so as to produce a laminated product. In a disc or wheel used for grinding weld beads, the back is faced with an aminotriazine-impregnated fabric and the front with a phenol-aldehyde-impregnated fabric, whereas in the cutting type of wheel both fabric facings are impregnated with phenol-aldehyde resins.  The fabric used for facings or reinforcement may be made of glass, cotton, nylon or burlap. Examples are given.
Patent GB-225206-A (GB)
Title: Improved process for the preparation of a solution of cyanamide from commercial calcium cyanamide
IPC: C01C3/16
Filed: 1924-11-12
Abstract: In the production of free cyanamide by introducing calcium cyanamide into a solution of carbon dioxide, preferably under pressure, the introduction of a fresh portion of calcium cyanamide is delayed until repeated tests upon the escaping gas have shown that the maximum evolution of sulphuretted hydrogen has occurred. The content of sulphuretted hydrogen in the evolved gas is zero at first, suddenly increases to a maximum and then decreases.  At the point where the maximum occurs there is no cyanamide remaining combined with calcium. It is convenient to determine the percentage of calcium sulphide in each sample of calcium cyanamide used.
Patent GB-1337597-A (GB)
IPC: C07C51/14
Filed: 1971-04-19
Abstract: 1337597 Preparation of di-n-butylheptadecanodicarboxylate BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [16 April 1970] 27025/71 Heading C2C [Also in Division C5] Di-n-butyl heptadecanodicarboxylate is prepared by reacting oleic acid with carbon monoxide and water in the presence of nickel iodide and carbonyl as catalyst, at from 100 to 400 atmospheres and at 200-300‹ C. to form the acid which is freed from monocarboxylic acid by fractional distillation, esterified with n-butanol, neutralized with dilute aqueous alkali, and the ester isolated by vacuum distillation. The catalyst may be formed in situ and the mono carboxylic acids removed by a falling film evaporator. The product is suitable as a heavyduty lubricant.
Patent GB-533053-A (GB)
Title: Improved process for the manufacture of glassware and product produced thereby
IPC: C03B37/075
Filed: 1939-10-03
Abstract: 533,053. Luminescent screens. CORNING GLASS WORKS. Oct. 3, 1939, Nos. 27101 and 27102. Convention dates, Nov. 4, 1938 and Nov. 18, 1938. Addition to 442,526, [Group XXIII]. [Class 39 (i)] [Also in Groups XXIII, III and XX] A highly-siliceous porous glass article, made as described in the parent Specification, is impregnated with one or more substances for modifying its properties. The impregnating substances may comprise metallic salts, dyes, pigments, resinous material, fluorescent material, catalysts, &c. The porous skeleton, or part of it, may be impregnated with a metallic salt and then fired to produce a vitreous article coloured wholly or in part. The article will be translucent or transparent according to the concentration of the metallic salt, but transparency can be obtained more readily by including aluminium nitrate, phospheric acid and alkali salts with the impregnating material. If the impregnated skeleton is fired in a reducing atmosphere, colours are obtained by the reduction of some of the salt to the metallic state. A fluorescent screen may be made by impregnating the porous glass with soluble or liquid fluorescent material, the pores being sealed with a resin or a highly viscous liquid.
Patent GB-682396-A (GB)
Title: Improvements in or relating to power plant
Inventor: BAILEY RICHARD WILLIAM
IPC: F01K23/14
Filed: 1949-10-21
Abstract: 682,396. Motor power plant. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 29, 1950 [Oct, 21, 1949], No. 27137/49. Class 110(iii) In a propulsive power plant especially for marine use comprising steam and gas turbines and internal combustion engines the steam turbine, internal combustion engine and gas turbine units respectively supply not less than 50 per cent, 10-35 per cent and 15-40 per cent of the total propulsive power. The exhaust gases from the internal combustion engine may assist in raising steam, heating feedwater or may be fed, together with the exhaust gases from the gas turbine, to the steam generator. The gas turbine unit may include an air compressor, a heater arranged in the steam generator, a combustion chamber and high- and low-pressure gas turbines. Specifications 666,453 and 682,002 are referred to.
Patent GB-1224548-A (GB)
Title: Improvements in or relating to vehicles provided with hydrodynamic brakes
IPC: F16D65/78
Filed: 1968-06-07
Abstract: 1,224,548. Hydrodynamic brakes. ALFRED TEVES G.m.b.H. 7 June, 1968 [21 Sept., 1967], No. 27172/68. Heading B7H. [Also in Divisions F2 and F4] The brake liquid of a hydrodynamic brake acting on the propeller shaft of a motor vehicle is cooled by being circulated through the vehicle main frame which is of tubular or box section. Cooling fins may be provided on the frame which may be arranged to be exposed to the slipstream. An anticorrosion agent may be added to the brake liquid.
Patent GB-219220-A (GB)
Title: Supporting means for railway rail-joints
IPC: E01B11/58
Filed: 1923-10-30
Abstract: 219,220. Blomquist, C. G., Milton, G. E., and Bengtsson, A. Oct. 30, 1923. Rail joints, bridge. - A metal sheet b is placed lengthwise under the rail ends so as to rest on adjacent sleepers and is formed with an edge c engaging the upper side of the foot of the rail and wtih two tongues t disposed one on each side of an angular fish-plate e. The tongues are each perforated to receive a bolt by means of which a wedge-shaped washer f is retained against the foot of the rail. The fish-plate e and a fish-plate d are secured together by bolts passing through holes in the rails.
Patent GB-458201-A (GB)
Title: Improvements relating to ventilating apparatus
IPC: F23L17/02
Filed: 1935-10-03
Abstract: 458,201. Ventilators. MUIRHEAD, J., and MUIRHEAD, D. P., and MUIRHEAD VENTILATORS, Ltd., 1276, Maryhill Road, Glasgow. Oct. 3, 1935, No. 27274. [Class 137] In a ventilator comprising an upright ventilating shaft 3 of oblong cross-section extending into the open bottom of a rectangular box 8 closed at the top by a cover 7 and having louvres 13 in the upper part of its longer sides, parallel to which are spaced baffles 18, the spaces between the baffles and box are closed at the ends 6, and the baffles 18 extend level with or above the lowest or highest point of the cover 7. The lowermost louvres abut against the turned-out edges 3a of the shaft sides. Longitudinal partitions 24, 25 subdivide the upper and lower portions of the space between each baffle 18 and the side of the box into parallel passages intercommunicating in the zone opposite the louvres. The lower part of the partition 25 may be bent out and extend below the baffle 18, or inclined baffles 21, 22, 23, 26 may be arranged as shown. The ventilator may be divided by transverse partitions into unit lengths. Specification 427,904 is referred to.
Patent GB-499950-A (GB)
Title: An improved railway rail chair
IPC: E01B9/48
Filed: 1938-09-19
Abstract: 499,950. Rail chairs. VEREINIGTE OBERSCHLESISCHE HUTTENWERKE AKT.-GES. Sept. 19, 1938, No. 27306. Convention date, Sept. 21, 1937. [Class 104 (ii)] A resilient screwless rail clamp is driven laterally into a slot c, c<1> between ribs b<1>, b<2>, on a chair plate a, and is curved into an S- shape &c. between the slot and the point where it bears on a rail flange. The clamp may be locked in position by a swinging link e pivoting in the loop of the clamp and embracing the outer rib b<1>.
Patent GB-688458-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H50/54
Filed: 1949-11-08
Abstract: 688,458. Electromagnetic switches. FOSTER TRANSFORMERS & SWITCH-GEAR, Ltd., and JENNINGS, R. E. May 30, 1950 [Nov. 8, 1949], No. 27348/51. Class 38 (v) Co-operating contacts 9, 10 are held together by magnetic attraction during the upward movement of the pivoted armature 8 under the attraction of the coil R, till the pivoted bar 10 strikes a stop 11, and the contacts separate, the bar 10 falling to its lower position against a stop 12. Preferably main contacts (not shown) are closed before the subsidiary contacts 9, 10, open. When the magnet R is deenergized, the main contacts open before the contacts 9, 10 close. The contacts 9, 10, as shown, are magnetized by the extension 8 of the armature being of magnetic material, but if desired, the armature extension may carry a permanent magnet. The relay is applicable to the welding system described in Specification 688,376, [Group XXXV].