baber/WOPTO huggingface dataset:
Patent GB-1315537-A (GB)
Title: Amplitude discriminator with an adaptive threshold
IPC: H03K9/02
Filed: 1970-06-29
Abstract: 1315537 Pulse discriminators HUGHES AIRCRAFT CORP 29 June 1970 [24 July 1969] 31447/70 Headings H3P and H3W In a pulse amplitude discriminator, a comparator receives the input pulses from 15 and a proportion X of the output of a peak detector 12 also receiving the input pulses, and produces a "1" output (Fig. 2e, not shown) whenever the input pulse exceeds the value X, a sample and hold circuit 18 being controlled by the output of the comparator to hold the X value constant during a comparison with an input pulse. The detector output otherwise decays at a given rate (31, 32, 33). A rectifier 70 between unit 18 and comparator 14 comprises operational amplifiers, and suppresses transients. A predetermined threshold voltage at 74 may be subtracted from the input 15 at 72 to improve noise immunity in the peak detector, and the same threshold voltage is then added again at 14 to the input.
Patent GB-863709-A (GB)
Title: Shaft bearings
IPC: F16C33/74
Filed: 1957-10-08
Abstract: 863,709. Bearings. SULZER FRERES S.A. Oct. 8, 1957 [Nov. 5, 1956], No. 31474/57. Class 12 (1). In a borehole pump, the pump shaft 1 is supported in a rubber bearing 2 which is disposed between a sleeve 3, secured to the shaft 1, and a bearing mounting 4, and lubricating water which flows axially downwardly through the bearing 2 passes from a chamber 6, on the outlet side of the bearing, through one or more restricted passages into a chamber 8 at lower pressure. Packing 7 is located between the chambers 6 and 8 and the restricted passages may either pass through the packing or alternatively may consist of a by-pass passage 9 in the bearing mounting, as shown, or it may consist of a groove in the shaft. In a modification, the sealing member consists of overlapping, spring- dressed, annular members 10, 11 at least one of which is provided with one or more small passages permitting a limited flow of lubricant through the sealing member. The chamber 8 is sealed from the delivery side of the pump by a throttling clearance 13 between the blade carrier 14 and bearing mounting 4. Relief passages 15, 16 connect the chamber 8 with spaces of relatively low pressure.
Patent GB-721044-A (GB)
Title: Improvements in and relating to electric resistance heating elements
IPC: H05B3/00
Filed: 1950-12-28
Abstract: 721,044. Coated conducting fabrics. SUCHY HOLDINGS, Ltd., SUCHY, C. T., RICHARDS, H. E. G., and McAULEY, D. J. Feb. 28, 1952 [Dec. 28, 1950], No. 31493/50. Class 140. [Also in Group XI] An electric resistance especially for heating garments is made by rendering a fabric conductive and applying thereto preferably in fluid form a hardenable or polymerizable material which is heated to stiffen the fabric and stabilize its electric resistance. The fabric is then severed to form elements and again coated on both sides with thermoplastic material, the coatings being bonded or fused by heat. The woven or knitted fabric is rendered conductive as described in Specifications 572,071, [Group XXXVI], and 648,087, [Group XI], and the metallized fabric is coated by spraying, dipping or rolling with a synthetic resin, e.g. a solution of nylon in alcohol, which may form a film in the interstices of the fabric to render it moderately stiff but flexible. Strips of predeterminal resistance cut from this fabric are then coated on both sides by sheet material, e.g. of incompletely cured nylon sheet overlapping around the strip, or by a liquid coating, e.g. of nylon solution, or a solution of neoprene in toluene, and heated to fuse or bond the coatings. Neoprene type A.C. may be used with magnesium oxide as an acid acceptor and may be heat vulcanized with thiocarbanilide as an accelerator. An irregularly shaped resistance may be applied to a glove or stuck to a supporting sheet. Specification 721,043 also is referred to.
Patent GB-159675-A (GB)
Title: Improvements in electric relays for signalling
IPC: H01H51/20
Filed: 1919-12-16
Abstract: 159,675. Railing, M. J., and Connaughton, J. J. V. Dec. 16, 1919. Mine and colliery signalling systems.-A relay, applicable for cancelling signals in mine signalling apparatus, has two armatures which respond to a weak and to a strong current respectively. Thus an armature may close a cancelling or other circuit when the engine begins to move, while the other may operate when the engine attains a given speed and the current reaches a corresponding value. The armature C has a narrower air-gap and corresponds to a weak current, closing contacts at F. This armature has a small cross-section so as to be saturated by a small flux. The armature E has a larger cross section and a large air gap, and responds to a heavier current, first breaking contact at F and then pulling away the lever I, pivoted at H, so as to break contact at J.
Patent GB-1158464-A (GB)
Title: Improvements in or relating to Pressure-Sensitive Adhesive Coated Laminates
IPC: C09J7/29
Filed: 1966-07-13
Abstract: 1,158,464. Fissile multilayer coated sheet materials. NATIONAL STARCH & CHEMICAL CORP. 13 July, 1966 [14 July, 1965], No. 31565/66. Heading B2E. [Also in Division B5] A multiple fissile laminate comprises an upper ply of paper 11 coated with a sealer coating 12 to which is adhered a lower ply of polymeric film 13 which may be cast on the coating 12, and to which is applied a layer of pressure-sensitive adhesive 14. The assembly is such that the bond between the sealer coat of the upper ply and the polymeric film of the lower ply has a tensile strength less than the tensile strength of the polymeric film at its breaking point, and also less than the strength of the adhesive bond formed between the pressure-sensitive adhesive and a glass substrate. such as a jar 18, to which the pressuresensitive adhesive film may be adhered The tensile strength of the polymeric film, at its breaking point, is also such that it is less than the strength of the adhesive bond formed between the pressure sensitive .adhesive and the glass substrate to which the pressure sensitive adhesive may be adhered. As shown, the laminate is used to form labels which split in the manner indicated if an attempt is made to .remove them,. The adhesive layer is protected prior to use of the laminate by a silicone coated paper sheet. In the formation of the laminate, the pressure sensitive adhesive 14 may be coated either on the polymeric film 13 or on the protective paper sheet. Both the upper paper ply 11 and the film 13 may bear printed matter, that on the film 13 being exposed on removal of the upper paper ply. A wide variety of materials may be used for the sealer coat including thermoplastic and thermosetting resins. The polymeric film may be made from the polymers of the lower alkyl (C 1 -C 4  acrylate esters, polyvinyl chloride, and ethers and esters of cellulose. The pressure sensitive adhesive may be based upon any elastomeric material. The film and pressuresensitive adhesive may be deposited or cast from lacquer or from an organosol, the film being dried before application of the adhesive. Quantitative examples are given.
Patent GB-358308-A (GB)
Title: Vehicles
IPC: B60P3/025
Filed: 1930-10-21
Abstract: 358,308. Folding road vehicles. EXPANDO CO., 105, West Adams Street, Chicago, U.S.A. Oct. 21, 1930, No. 31588. Convention date, Dec. 9, 1929. [Class 108 (i).] A road vehicle comprises a framed structure consisting of uprights, longitudinals a<5> and floor a<19> secured to the chassis, transversely movable body box-like sections B, and a roof C adapted to be raised as the side sections are expanded. The body sections B are provided with drawers or other fittings and the roof is raised to provide increased head room so that the vehicle may serve as a retailing vehicle. Panels F hinged to the roof C and to the body sections cause the roof to be raised or lowered in conjunction with the movement of the body sections. The body sections are moved simultaneously by gear wheels mounted on a shaft g<5>, Fig. 11, and engaging toothed rods or racks g secured to the body sections. The shaft g<5> may be driven from an electric motor H through chain wheel h<2>, shafts h<4>, h<8> and bevel gears h<9>, h<11> and switch gear I for the motor is provided comprising a cam adapted to close one or other sets of spring contacts and operated by rod i8 and crank i<16>. The motor is shut off when the body sections have reached their extreme positions by means of dogs g<2>, g<3> engaging levers k<1> to operate the switch gear through a link k<3>.
Patent GB-1235913-A (GB)
Title: Printing plates
Inventor: STAEHLE HENRY CARL
IPC: G03F7/06
Filed: 1968-07-03
Abstract: 1,235,913. Printing plates. EASTMAN KODAK CO. July 3, 1968 [July 3, 1967], No.31644/68. Heading G2M. Printing plates are prepared by imagewise applying an α - cyano acrylate monomer through open areas in an image-resist layer carried on the surface of a support, whereby the monomer polymerises, and removing the resist and polymer formed thereon. Preferably the monomer is of formula: CH 2  = C (CN) - CO 2 R (in which R is 1-16C alkyl, cyclohexyl or phenyl) and is applied to a hydrophilic surface through a photoresist thus forming a lithographic plate.
Patent GB-656014-A (GB)
Title: Conversion of phosphoric anhydride to condensed phosphates
Inventor: TOPLEY BRYAN
IPC: C01B25/39
Filed: 1948-12-07
Abstract: Amine salts of condensed phosphates having a minimum of three phosphorus atoms linked by oxygen in the anion structure are produced by hydrating polymeric phosphoric anhydride, and simultaneously neutralizing at a temperature not exceeding 90 DEG  C. with an amine in the presence of water which may be in the form of ice mixed with the amine.  Solid carbon dioxide mixed with one or both reactants may also be used for cooling.  An example discloses the addition of phosphoric anhydride to a mixture of ice and water, and the neutralization of the product with triethanolamine to pH 7. Specifications 441,474 and 610,201, [both in Group III], are referred to.ALSO:Alkali metal, ammonium and amine salts of condensed phosphates having a minimum of three phosphorus atoms linked by oxygen in the anion structure are produced by hydrating polymeric phosphoric anhydride, and simultaneously neutralizing at a temperature not exceeding 90 DEG  C. with an alkali metal salt or hydroxide, ammonia or a salt thereof, or an amine, in the presence of water of crystallization or uncombined.  Suitable base materials are various hydrated sodium carbonates, phosphates, tetraborates, if necessary with further alkali, a material commonly used in detergent mixtures, e.g. hydrated sodium silicate, and a mixture of ice and sodium bicarbonate, ammonium or potassium carbonate, or an organic amine, e.g. triethanolamine.  Solid carbon dioxide mixed with one or both reactants may also be used for cooling.  A 50 per cent yield of sodium tetrametaphosphate may be crystallized from the solution obtained, the mother liquor being a concentrated solution of sodium polyphosphates (probably tetraphosphate and triphosphate), which solution may be used for softening water, in the manufacture of detergents, and in the preparation of fluids adapted to suspend solids, e.g. as drill fluids.  The solutions may also be spray dried at a temperature not exceeding 90 DEG  C.  The sodium tetrametaphosphate may be hydrolysed to polyphosphates. Examples are furnished, disclosing, inter alia, the use of phosphoric anhydride distilled and condensed on a cold surface, powdered anhydride heated to 200-250 DEG  C. until a hard crystalline form resulted, resublimed anhydride heated to 400-420 DEG  C. to produce a sintered mass, and the commercial powdered anhydride. Specifications 441,474 and 610,201 are referred to.ALSO:The preparation of concentrated solutions or grease-like pastes containing alkali metal, ammonium or organic amine polyphosphates, e.g. tetraphosphate and triphosphate, and other phosphates, suitable for softening water, is described. Specifications 441,474, [Group III], and 610,201 are referred to.
Patent GB-983448-A (GB)
Title: Fibrous cylindrical containers having reinforced end structures
IPC: B65D3/10
Filed: 1961-09-04
Abstract: 983,448. Containers of fibrous material. MEAD CORPORATION. Sept. 4, 1961 [Sept. 6, 1960], No. 31707/61. Heading B8D. A container 11 of paper or other fibrous material has a base 27, of deformable sheet metal anchored against upward and downward movement by crimping on to the lower end of the side wall 13 of the container, a sheet metal chime 25 surrounding the crimped lower part of the wall 13 and base 27. The upper end of the container, Fig. 2, has a cover 17 turned inwards at 17d round the upper part of a chime 15 and outwards at 17t to form a seating for a. clamping ring 23.
Patent GB-441309-A (GB)
Title: Improvements relating to hydraulic driving mechanism for operating machines, especially sawing machines
IPC: B23Q5/26
Filed: 1934-11-05
Abstract: 441,309. Hydraulic mechanism. SCHIEFERDECKER, A. M., 1, Richterstrasse, Saalfeld, Germany. Nov. 5, 1934, No. 31713. [Class 69 (ii)] Distributing means for a hydraulic sawdisplacing mechanism consists of an oscillatable valve having positions for effecting the advance, return and stop of the saw feed, the valve being rapidly moved into its end positions by a loaded dead-centre device actuated by the piston of the hydraulic mechanism. The piston 14, Fig. 1, reverses the distributing valve 2, Fig. 5, through tappets 35, 36, a bell-crank lever 16 acted on by a spring 21, and a link 18 having a slot 29 receiving a pin 8 on the valve-operating member 9b. The lever 16 has a knife edge 28, engaging a spring pressed lever 19 provided with a knife edge 25. At the commencement, the valve 2 is in its mid-position and the member 9b rests on an abutment 13, which is moved away to permit the member to move the valve into one end position. At the end of the upward stroke of the piston 14, the valve is reversed, and the piston moves down. At the end of its downward stroke, the member 9b is returned into contact with the replaced abutment 13. An adjustable cam 27 limits the movement of the member 9b in the direction for obtaining the upward stroke of the piston, so that more or less liquid may be byepassed and the piston speed regulated.
Patent GB-253439-A (GB)
Title: Improvements in or relating to indicators for domestic or house-hold use
IPC: G08B5/02
Filed: 1925-12-16
Abstract: 253,439. Better, P. C. Dec. 16, 1925. Indicator boards directly operated by hand for displaying variable information.-A board a bearing a series of tradesmen's designations is provided with a separate frame b opposite each designation, a slide d with a knob e being adapted to disclose either the word " no " or a number in each frame. The frames may be formed as shown in Fig. 4, with tongues c which are passed through slots in the board and bent over at the back. A triangular sign f may be placed in a conspicuous place to direct attention to the indicator.
Patent GB-267594-A (GB)
Title: Improvements in stereoscopes
IPC: G01C11/00
Filed: 1925-12-16
Abstract: 267,594. Hilger, Ltd., A., and Smith, C. F. Dec. 16, 1925. Stereoscopes for examining photographic prints of varying sizes taken with lenses of varying focal length consist of two print holders 2, 3 supported on a base 1 so that they may be moved in a horizontal plane in either of two directions at right angles to one another and also tilted so that they are inclined to the horizontal. Above the print holders are mounted two reflectors 10, 11 supported on an adjustable column 6, so arranged that the prints may be viewed in them by telescopes 17, 18 which are of the ordinary astronomical type, and which each view the reflections of the prints through two prism systems 15, 16 each comprising two right-angled prisms. One of the telescopes is adjustable for inter-ocular distance, and the print holders are rotatable about centre pivots 28 corresponding to the centre of the stereoscopic field.
Patent GB-930184-A (GB)
Title: Improvements in torque-controlled device for running and setting screw-threaded members
IPC: B25B23/145
Filed: 1959-09-17
Abstract: 930,184. Screwing-up nuts &c. REED ROLLER BIT CO. Sept. 17, 1959 [Sept. 17, 1958; Oct. 27, 1958; Dec. 1, 1958], No. 31783/59. Class 83 (3). A pressure-fluid operated device for running nuts &c., comprises a valve controlling a fluid passage and an actuator for the valve, a connection being provided between the actuator and the valve capable of release to enable the valve to close even though the actuator is in the valveopen position. The driving tip 35, Fig. 1, which may be of any desired shape, is rotated by bevel gears 33, 34 and planetary gearing 31, 32, from a spindle 29. The latter is driven from a fluid-actuated vane-type motor 10 through a clutch 30 which is adapted to " slip " when a predetermined resistance is encountered by the tip. The clutch comprises a polygonal driving member 27, Fig. 7, surrounded by a number of balls or detents 37 which are pressed against the faces of the polygonal contour by the inclined wall 39, Fig. 1, of a ball retainer 40 and an adjustable compression spring 41. When a predetermined torque is reached the balls pass over the high parts of the polygonal member and the sleeve 40 is forced to the right carrying with it a rod 70. The right-hand end of this rod presses a detent 66, Fig. 4, against the pressure of a resilient pad 67 and releases a spring-pressed valve-member 53 to which the detent is pivoted at 65. A packing ring 56 acts as a seal for the valve face. The supply of fluid pressure via passages 16 and 71 is thus cut off despite the hand controlled actuator 73 being depressed to the " open " position. When lever 73 is released a valve-operating sleeve 60 moves upwardly and the detent 66 moves back into its " cocked " position under a ledge in the hollow bore of the sleeve 60, the rod 70 has previously moved to the left to release the detent. A modified arrangement of detent releasing mechanism employing an L-shaped lever 107, Fig. 9, pivoted at 108, is described and in this construction a reservoir 79 is provided for lubricating oil.
Patent GB-178481-A (GB)
Title: An improved process and apparatus for the manufacture of artificial silk or the like
IPC: D01D7/02
Filed: 1920-11-10
Abstract: 178,481. Dreaper, W. P. Nov. 10, 1920. Spindle apparatus; thread guides; rollers. -The centrifugal box 0 of a machine for spinning artificial silk, &c. is of increased diameter so as directly to produce a skein. The thread guide K or an extension L thereto is mounted on a crossbar M rapidly reciprocated by cam-mechanism so as to produce, during winding, the effect of cross-reeling. A stream of liquid may be passed through the guide and its extension as described in Specification 171,719, [Class 2 (ii), Cellulose &c.]. The godet C is placed at the same level as the precipitating-bath and is provided with cylindrical portions differing in diameter and connected by a conical portion C; by relative movement of the godet and the guide B the thread can be shifted from one of the cylindrical portions to the other so as to vary the speed of spinning; and the godet may be connected to its driving- shaft by a clutch. According to the Provisional Specification, the variation in the speed of the godet may be obtained by a two-speed mechanism.
Patent GB-864671-A (GB)
Title: Improvements in or relating to display arrangements, for example for advertising signs
Inventor: SYMMONDS EMRYS THOMAS
IPC: G09F13/00
Filed: 1957-10-11
Abstract: 864,671. Signs. CLAUDE-GENERAL NEON LIGHTS Ltd. Oct. 13, 1958 [Oct. 11, 1957], No. 31865/57. Class 3(1) An illuminated sign adapted to change appearance according to the position of an observer comprises a transluscent sheet 9 having inclined stripes 11 and a transparent sheet 8 having oppositely inclined stripes 10. The stripes 10, 11 may be of contrasting colours and form a background for display matter provided on the front or rear surface of the screen 8. The display matter may take the form of an opaque coating on the screen 8 or constitute a transparent region of the screen or two similar regions left uncoated on the screens 8, 9. Again the display matter may take the form of a stencil or character placed over the front of the device,(see Figs. 3 and 4 not shown).
Patent GB-1336096-A (GB)
Title: Locking device for connections between a barge and a pusher tug
IPC: B63B21/56
Filed: 1972-07-07
Abstract: 1336096 Releasable fastenings SOC FINANCIERE ET INDUSTRIELLE DES ATELIERS ET CHANTIERS DE BRETAGNE 7 July 1972 [31 Aug 1971] 31970/72 Headings E2A and E2B The connection 4 between a barge B and a pusher tug P is tightened by a hydraulic ram 1 whose rod 2 carries an interrupted thread engaging an interrupted thread in a nut 6 to lock the rod in its tensioned position. To facilitate matching of the threads to be engaged, the nut 6 is carried in a carrier 7 which is also threaded at 9, is driven by a motor 16, and drives the nut 6 through friction member 11. The nut 6 has a pin and slot stop 17, 18. The motor 16 may be electric, pneumatic or hydraulic, and is controlled directly, or through a valve, by the circuit, shown in Fig. 6, started by contact 20 to close relay B through relay A. A detector D detects if the threads are in a position at which they may jam at their corners, and if so, it energises relay to energise the motor in the unscrewing direction for starting screwing. If jamming does occur, it is released by a current-sensitive circuit (Fig. 7, not shown). (For Figures see next page)
Patent GB-466008-A (GB)
Title: Improvements in or relating to cinematograph projectors
IPC: G03B21/32
Filed: 1936-11-24
Abstract: 466,008. Kinematograph apparatus. BOSCH AKT.-GES., R. Nov. 24, 1936, No. 32097. Convention date, Nov. 25, 1935. [Class 97 (i)] In a projector, to permit the projection of an endless film without removing the spoolsupporting arms, means are provided for the detachable connection of an endless-film spool carrier. As shown the column 3 supporting an endless-film spool 2 is detachably connected to the projector 7 by means of slots 3a, 3b which engage screws 6 carried on the spoolsupporting arms 8 of the projector. The ordinary film spools are driven by belts 11 and the endless film is driven over the guide rollers 4 by tension or other means.
Patent GB-906726-A (GB)
Title: Improvements relating to basins
Inventor: MONOGHAN GERALD NIALL
IPC: A61M3/02
Filed: 1959-09-21
Abstract: 906,726. Stands. LABORATORIES FOR APPLIED BIOLOGY Ltd. Dec. 9, 1960 [Sept. 21, 1959], No. 32108/59. Classes 52 (3) and 52 (5). A basin 21 for use in an ear syringing or similar operation is supported on flexible stay-put tubing 15 through which liquid can drain into a receptacle. The tubing 15 has a spirally wound metal core covered with a plastic sleeve and may be mounted on a stand 11, 12 or on a clamp by which it can be attached to a chain. A friction ball-joint 20 may be provided and a polyethylene seating cup 26 may be attached to base 11 to accommodate a polyethylene bottle 25.