baber/WOPTO huggingface dataset:
Patent GB-1030764-A (GB)
Title: Improvements in or relating to wristlet watches
IPC: G04B37/14
Filed: 1964-12-08
Abstract: 1,030,764. Watches. ATLANTIC FABRIQUE D'HORLOGERIE S.A. Dec 8, 1964 [Dec 20, 1963], No. 49846/64. Heading G3T. [Also in Divisions A3 and E2] A watch bracelet 1, Figs 1 to 5 (not shown) can be worn with either side toward the wrist. The bracelet carries two watches 2, 3 with their faces directed to opposite sides of the bracelet so that only one shows. The fastener, Fig 3, comprises a buckle 5 engageable over one or the other of two projections 6a, 6b on opposite sides of a fastening plate 6. Two hinged cover plates 7, 8 provide catches of which one has two side hooks 7a and the other a central hook 8a passing through the buckle. The back of one watch, 2, is decorated to appear as an ornament e.g. a medal contrasting with the bracelet; and of the other, 3, in a manner blending with the bracelet. In Figs 4 & 5, the watches occupy diametrically opposite positions and the fastener comprises a dovetail 13 across an end of the bracelet engaging a groove 14 in one watch case forming the other end. A catch 15 retains the fastener.
Patent GB-1080915-A (GB)
Title: Improvements in or relating to tenter frames
IPC: B29C55/08
Filed: 1965-11-25
Abstract: A tenter frame for stretching webs of textile material transversely of the type comprising two horizontal tracks which diverge in the direction of travel of the web and which guide two endless chains carrying clips mounted on rollers for gripping the edges of the web is characterised in that each track is provided with a flexible jointless and vertically extending guide rail which constitutes a bearing surface for the clip rollers which are disposed on either side of the guide rail with a small clearance and the outer ones of which react against the tension created by the transverse stretching of the web.  As depicted in Figs. 1 to 4 (not shown), a jointless bank of spring steel strips standing on edge acts as a guide rail 14 and is anchored to a support 16 by angular clamps 15.  Roller 8 and rollers 9 engage the portion of the bank projecting above the clamps 15 and during the operation of the machine the tension generated by the transverse stretching of the web is counteracted by the pressure of the rollers 9 against the rail 14.  Each clip comprises two arms 2 carrying a flap 3 pivotable about a pin 6 and provided with a gripping insert 4.  The edge of the web is gripped between the insert 4 and a clip platen 5.  On its side facing away from the web, the body 1 of the clip has two arms 7 each carrying a roller 9, arranged between these arms and on the other side of the guide rail 14 is the single roller 8.  Arranged on an arm beneath the clip platen is a roller 10 rotatable about a horizontal pin and bearing the weight of the clip as it runs over the upper horizontal surface of one of the clamps 15.  Two rollers 11 mounted on vertical pins on the underside of the clip body and connected by pairs of straps 12 and 13 form part of the endless chain for driving the clips along the track.  The teeth of driving wheels provided at one or both ends of the tracks engage the rollers 11 or the gaps between them.
Patent GB-1439681-A (GB)
Title: Medium voltage apparatus bromination of n-containing heterocycles
IPC: H01H31/12
Filed: 1973-10-29
Abstract: 1439681 Fuse switches GILES & ELLIOTT Ltd 29 Oct 1973 [31 Oct 1972] 50262/73 Heading H1N In a double-break fuse switch having two or more poles, all the connecting terminals associated with fixed contacts of the switch are disposed in use of the switch in spaced relationship serially one above the other and the moving member moves rectilinearly in a vertical direction upwards to the ON position and downwards to the OFF position. The moving member carries fuse links, and these fuse links may be oriented vertically or horizontally. The whole device is mounted in a steel enclosure 1 having removable front panels 2, 3 and the moving member 7 is operated by a handle 17 and an overcentre spring mechanism 18. An interlock 20, 21 prevents the panel 3 from being opened with the switch in the ON position, the part 20 of the interlock carrying a label visible from outside the switch to indicate the state of the switch. For higher currents the contacts are duplicated so that double moving contacts co-operate with double fixed contacts, Fig. 5, not shown, or for higher currents still the input contacts are arranged in the same horizontal plane as the output contacts as opposed to the purely vertical arrangement for lower currents where all the contacts are disposed vertically in a line.
Patent GB-1211685-A (GB)
Title: Improvements in or relating to the manufacture of polyamides and to filaments obtained therefrom
Inventor: PAGE ERIC JOHN
IPC: C08K3/00
Filed: 1966-11-10
Abstract: 1,211,685. Melt spinning polyamide filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 1 Nov., 1967 [10 Nov., 1966], No. 50471/66. Heading B5B. [Also in Division C3] Polyamide filaments containing an inorganic "nucleating agent" having an average particle size of less than 0À5 micron diameter are produced by melt spinning a polyamide containing the nucleating agent dispersed therein, the maximum nucleant separation distance being given by the expression:- wherein G is the linear rate of crystallization in microns per second at a temperature T‹ C., S is the maximum nucleant separation distance, XC the distance of the solidification point from the spinneret for unnucleated polymer when melt spun into filaments, and t is the time in seconds for a point in the filament to travel from the spinneret to a point X where X is any point between XC and the spinneret plate. The solidification point is defined as the point at which a steady denier is attained in the cooling zone and which is determined from experimental draw down curves of the filaments spun from that particular polyamide. The polyamide may contain at least 0À03%, preferably at least 0À2% by weight of a delusterant such as TiO 2 . The polyamide may be polyhexamethylene adipamide or a polyamide having a linear rate of crystallization of the same order, e.g. polyoctamethylene adipamide, polydecamethylene adipamide or poly(3,3<SP>1</SP>-p-phenylene bis propyl adipamide). The preferred inorganic nucleating agent is calcium fluoride. The polyamide filaments when undrawn may have a molecular orientation exhibiting X-ray reflectance patterns in which O 1  - O 0  is greater than 0À2. O 1  may be greater than zero. When the nucleating agent used is calcium fluoride it may be incorporated into the polyamide during the polymerization of the polyamide salt in an autoclave by injecting an aqueous slurry of the calcium fluoride into the autoclave. Alternatively the slurry may be injected into the coil of a continuous polymerization apparatus in which the polyamide salt is being polymerized at a point about 60% along the evaporation section. The calcium fluoride nucleating agent may be prepared in situ in the autoclave or coil during the polymerization of the polyamide salt, e.g. by the interaction of calcium adipate and hexamethylene diamine dihydrofluoride or calcium acetate and ammonium fluoride. The term "nucleating agent is defined as referring to solid substances having a particle size of less than 0À5 micron diameter which, when present in the as-spun polyamide filaments, induces the formation and growth of a crystalline texture which does not exhibit, in the polarizing microscope at the extinction position, any discrete resolvable patterns characteristic of spherulites, that is, the so-called Maltese cross pattern. Spherulite growth, if present, must therefore be limited to about 1À5 microns in diameter.
Patent GB-1527518-A (GB)
Title: Haymaking machines
IPC: A01D84/00
Filed: 1975-12-09
Abstract: 1527518 Hay-making machines JOSEF BAUTZ GmbH 9 Dec 1975 [13 Dec 1974] 50482/75 Heading A1F A haymaking machine comprises a conveying drum 2 equiped with elastic conveying implements 1 and is driven about a horizontal shaft 3; treatment rollers for breaking up conveyed haulms are provided circumferentially of the drum 2 and rotate freely about axes parallel to the axis of the drum. A brake may be provided common to the rollers to increase the impact of the beater bars 4 and thus adapt the machine for different crop materials.
Patent GB-1159425-A (GB)
Title: Improvements in or relating to Electrical Filter Arrangements
IPC: H04N5/44
Filed: 1966-11-11
Abstract: 1,159,425. Filter networks. WARWICK ELECTRONICS Inc. 11 Nov., 1966 [15 Nov., 1965], No. 50765/66. Heading H3U. A radio frequency suppression filter 15 comprises two cylindrical inductor coils 30, 31 arranged one within the other and reversely wound so as to have reverse mutual coupling. Each coil is series connected in a respective one of two power lines connecting an A.C. lower source with a utilization device, e.g. a T.V. receiver (Fig. 1, not shown). The coils 30, 31 are separated by an insulating cylinder 33 and a ferrite core 34 is situated in the coil 31.
Patent GB-1096669-A (GB)
Title: Improvements in or relating to coin-freed mechanism
Inventor: CHALSTREY FRED
IPC: G07F5/06
Filed: 1965-12-04
Abstract: 1,096,669. Coin-freed mechanism. LOCKERBIE & WILKINSON (BIRMINGHAM) Ltd. Nov. 30, 1966 [Dec. 4, 1965], No. 51555/65. Heading G4V. A coin-freed mechanism including a pair of jaws 40 pivotally mounted on an arm 19 arranged to be rocked by a member 17 to pivot the jaws and release a coin held therebetween, is characterized in that members 55 are adjustable mounted on the jaws whereby the mechanism is adapted to receive coins of different sizes. Fig. 2 shows the mechanism in an inverted position as applied to the drawer of a vending machine. The member 17 projects from the underside of the drawer. The arm 19 has enlarged ends 22, 26 carrying a spring- loaded rod 25 passing through bores therein. The rod 25 is normally urged to engage a cam piece 31 pivoted on the end 22 and position it in engagement with ears 24 on said end 22. The end 26 has lateral extensions 38 carrying the jaws 40. The jaws are pivoted at 39 and urged by springs 41 to position lugs 48 thereon in engagement with posts 44. The arm 19 is pivoted adjacent the end 26 about a transverse axis. In operation, movement of the drawer pivots the cam piece to project the rod 25 from the end 26 into the space between the jaws. Presence of a coin between the jaws limits movement of the rod 25 whereby the cam piece becomes fast with the arm. The member 17 then pivots the arm so that the lugs 48 strike the posts 45 to open the jaws and release the coin. The members 55 are slotted at 59 and adjustably mounted on the jaws by screws 63. The limbs 56, 57 are enlarged towards the coin slot to form a guide. Projections 61 limit the movement of an inserted coin. Fraud preventing.-The position of the rod 25 is adjusted by a set screw 34 to sense the thickness of an inserted coin.
Patent GB-1372997-A (GB)
Title: Dynamic compression of digital signals
IPC: G06F17/40
Filed: 1971-11-05
Abstract: 1372997 Selective signalling SOC D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES 5 Nov 1971 [6 Nov 1970] 51602/71 Heading G4H Dynamic compression of digital signals is performed by shifting them in a shift register in accordance with a dynamic compression factor to produce a modified digital signal, detecting when the latter is above a maximum or below a minimum for a respective predetermined time, and when it is modifying the compression factor so as to tend to reduce the overshoot. A first test circuit detects when any of a first number (optionally selectable) of the highest order positions of the shift register contains a 1, to increment a first counter, the counter being reset to 0 if none does. Similarly, a second test circuit detects when none of a second number (larger than the first and selectable) of the highest order positions of the register contains a 1, to increment a second counter, the second counter being reset to 0 if any does. If the first (second) counter reaches a manually-preset value respective to the counter, the compression factor (also manually-preset) is decremented (incremented) by one. A single counter may be used, with a direction-of-variation store indicating which of the original two counters the counter is acting for, currently. The digital signal entered into the shift register is in fixed point. It may be obtained from a floating point signal by placing the mantissa of this in an auxiliary shift register and shifting the latter in accordance with the characteristic. Alternatively, the mantissa can be placed in the firstmentioned shift register, and the characteristic added to the dynamic compression factor before it is used to control shifting of this register. Seismic signals from geophones are converted to digital form, recorded magnetically, re-read, dynamically compressed as above, converted to analogue form and recorded on film for local inspection. The signals from different geophones can be time-division-multiplexed through the compression stage. Compression may be inhibited (by control of the shift register) until the seismic shock has been triggered, and the input digital signal exceeds a preset threshold. When the signal entered into the shift register is just the mantissa of a floating point number (see above), the threshold is scaled according to the characteristic before comparison with the mantissa, and the inhibition operates by resetting an output register fed from the shift register. Inhibition could be for predetermined times (multiplexed embodiment) after triggering of the seismic shock, and be performed by control of the test circuits or of these and of the comparators controlling change of the compression factor.
Patent GB-1088070-A (GB)
Title: Improved containerized cargo refrigeration system
IPC: F25D19/00
Filed: 1965-12-08
Abstract: 1,088,070. Refrigerators. L. L. WESTLING. Dec. 8, 1965, No. 52035/65. Heading F4H. An insulated cargo container 11 is provided with openings 38, 41 in its walls, removable plugs 39, 42 for the openings of a fan 97 disposed adjacent opening 38. When a plurality of such containers are carried in the hold of a ship (Figs. 7 and 8, not shown) having air circulating and refrigerating means (92, 94) the fans 97 are energized and plugs 39, 42 may be removed to allow the fans to circulate ambient refrigerated air through the containers. In transit to and from the ship the containers are sealed by insertion of the plugs and may be cooled by a refrigeration machine which is inserted in an aperture in a wall of the container (Fig. 4, not shown) and is removed on arrival. While being stored prior to loading on to the ship the containers may be supplied with refrigerated air from a central refrigerating plant via flexible ducting connected to the openings in their walls (Fig. 6, not shown). The containers (Fig. 3, not shown) have end doors (43, 44) which are provided with further openings (52, 53). Heaters may be provided within the containers.
Patent GB-1407276-A (GB)
Title: Method for directly converting sodium carbonate into caustic  soda and application of said method to pulp and paper industry
IPC: C01D1/20
Filed: 1972-11-10
Abstract: 1407276 Caustic soda OJI PAPER CO Ltd 14 Nov 1972 52126/72 Heading C1A [Also in Division D2] A caustic soda solution is made by adding an ilmenite ore or a material containing a major proportion of titanium dioxide to sodium carbonate or sodium bicarbonate, heating the mixture to 900‹ to 1500‹ C., dissolving the product in water and separating the liquid from the sludge containing titanium dioxide. 20 to 40% by weight of titanium dioxide, based on the weight of sodium carbonate or bicarbonate, may be added and silica may be present with the titanium dioxide in a ratio of 1 : 1 to 1 : 2. The process may be used for the recovery of cooking chemicals from pulping waste liquor by adding titanium dioxide or ilmenite ore to a smelt from a recovery boiler in a chemical recovery process for soda pulping waste liquor, heating the mixture to 900‹ to 1500‹ C., dissolving the product in water to convert the sodium oxide component in the smelt into sodium hydroxide, and separating the mother liquor from the sludge containing titanium dioxide. Kraft pulping waste liquor may be so treated, the mixture of titanium dioxide and smelt, with the optional addition of silica, preferably being heated in a non-oxidizing atmosphere. The titanium dioxide separated and precipitated from the mother liquor may then be recycled to the step of adding to a smelt after the titanium dioxide is heated to a temperature of 300‹ C. in the atmosphere and completely oxidized.
Patent GB-1148516-A (GB)
Title: Improvements in or relating to anaesthetising apparatus
Inventor: DRAGER OTTO HEINRICH
IPC: A61M16/18
Filed: 1966-11-22
Abstract: 1,148,516. Anaesthetic vaporisers. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH DRAGER]. 22 Nov., 1966 [22 Nov., 1965], No. 52327/66. Heading A5T. [Also in Division B1] Liquid anaesthetic is vaporised from wicks 9, 9<SP>1</SP> lining a chamber 7 into a carrier gas stream supplied through aperture 6 and the gaseous mixture is passed via aperture 8 into a mixing chamber 5 located below the upper edges of the wicks where further mixing with carrier gas supplied via by-pass conduit 3 occurs. Aperture 8 may be regulated by a valve.
Patent GB-1419150-A (GB)
Title: Continuous sulphonation process
IPC: C07C309/37
Filed: 1973-11-13
Abstract: 1419150 Sulphonation LION FAT & OIL CO 13 Nov 1973 [13 Nov 1972] 52578/73 Heading C2C A continuous process for sulphonating or sulphating an organic material comprises contacting a thin film stream of the organic material with a parallel stream of SO 3  and inert gas while from 2 to 12 volumes of waste gases from the sulphonation reaction per volume of the inert gas/SO 3  mixture are recirculated as cooling gas between the thin film stream of organic material and the stream of SO 3  and inert gas. SO 3  may be added to the waste gases to the extent of 1-20 wt. per cent of the total amount of SO 3  employed to effect the sulphonation. The organic material may be selected from olefins having 6-30 carbon atoms, alkyl benzenes having 8-15 carbon atoms, aliphatic alcohols having 8-24 carbon atoms, alkylene oxide derivatives of aliphatic alcohols having 8-22 carbon atoms, alkylene oxide derivatives of alkyl phenols having 8-15 carbon atoms.
Patent GB-1183720-A (GB)
Title: Nut and Screw Mechanism.
Inventor: PROFET ANTHONY GERARD
IPC: F16H25/22
Filed: 1967-11-20
Abstract: 1,183,720. Screw-and-nut gearing. DUFFNORTON CO. 20 Nov., 1967, No. 52583/67. Heading F2Q. A recirculating ball - type screw - and - nut mechanism for a screw jack comprises a nut 26 and a screw 30 drivingly connected by balls 34, two or more co-extensive longitudinal thread-interrupting recesses (26c) (Fig. 3, not shown) formed in the threaded surface of the screw or the nut, and, seated in each recess (26c), an insert 36 formed with return grooves 36a across it so that each groove 36a connects adjacent ends of one turn of the thread to form a return path for the balls 34 over the thread crest of the nut or the screw. As shown, two identical inserts 36 are secured in diametrically opposite sides of the nut bore by screws 38, and return grooves 36a alternate with part-helical continuation grooves 36b. Successive one-turn circuits for the balls start in alternate ones of the two inserts to improve load distribution, there being two circuits per three pitches of the thread helix, with half-turns 26d of the nut unused. The inserts are installed with one inverted relative to the other. The nut 26 is bolted by a flange 26a to a worm-wheel 14 meshing a worm 22 on an input shaft 24. Thrust bearings 16, 18 axially locate the nut and worm wheel assembly in a casing 12, 20.
Patent GB-1176510-A (GB)
Title: Improvements in or relating to electrical time division communication systems
IPC: H04L25/05
Filed: 1967-11-20
Abstract: 1,176,510. Multiplex pulse code signalling. NIPPON ELECTRIC CO. Ltd. 20 Nov., 1967 [19 Nov., 1966], No. 52679/67. Heading H4L. In an arrangement for coupling together time division multiplex P.C.M. systems having independent block systems, incoming low speed signals at terminal 10 are supplied to gates 22, 23, 24 opened sequentially by distributer 21 so that the signal pulses are written in to elements 25, 26, 27 of a memory 14 at the incoming clock pulse rate. The stored pulses are read out sequentially from elements 25, 26, 27 at a higher clock pulse rate to output 11 via gates 28, 29, 30, controlled by distributer 31. Synchronizing pulses are introduced into the output 11 at periodic intervals through a timing circuit 13 and further pulses are also inserted as required to keep the mean delay time of the signals constant. This conventional apparatus is provided with a supervisory circuit in which the output 11 is fed back via gates 35, 36, 37 opened sequentially by distributer 31 to memory elements 32, 33, 34, of a supervisory memory circuit from which they are read out by gates 38, 39, 40 similarly controlled by distributer 21. The input signal at 10 is delayed at 42 and compared in timing at 43 with the outputs from elements 32, 33, 34. It is stated that the output of comparator 44 may be used for supervisory purposes such as change-over to a standby facility. In a modification, Fig. 3 (not shown), a single memory is used and the output signals fed back via the memory to the comparator on a time division basis as compared with the write-in and read-out of the original input signal.
Patent GB-1269309-A (GB)
Title: Recovery of naphthamide coupler from photographic processing solutions
Inventor: BARD CHARLETON CORDERY
IPC: G03C7/32
Filed: 1970-11-05
Abstract: 1,269,309. Amide recovery. EASTMAN KODAK CO. 5 Nov., 1970 [10 Nov., 1969], No. 52706/70. Heading C2C. A method of recovering N-(o-acetamido-#- phenylethyl) - 1 - hydroxy - 2 - naphthamide coupler from a used photographic colour developer solution comprises acidifying the solution to form a precipitate containing the coupler, separating the precipitate and mixing it with water and a water-miscible aprotic solvent having polar bonds to form a slurry, the proportion of water to aprotic solvent in the slurry lying in the range 0À1:1 to 2:1 by volume, and thereafter separating the solid coupler from the slurry.
Patent GB-1169777-A (GB)
Title: A process for producing Adipic Acid
Inventor: YASUI EIZO
IPC: C07C51/31
Filed: 1967-11-20
Abstract: 1,169,777. Adipic acid. TOA GOSEI CHEMICAL INDUSTRY CO. Ltd. 20 Nov., 1967, No. 52721/67. Heading C2C. Adipic acid is prepared by oxidizing in the liquid phase a starting oil containing cyclohexanol, cyclohexanone and cyclohexane with molecular oxygen in an acetic acid solvent in the presence of a manganese salt soluble in the reaction mixture. The reaction is initiated in the temperature range of from 60‹ to 88‹ C. and the temperature successively elevated within the range of from 60‹ to 120‹ C., the reaction being ended at between 88‹ and 120‹ C. although it is preferred to effect the major portion of the reaction below 88‹ C. The amount of oxygen reacted per unit volume of liquid and per unit time is reduced as the reaction temperature is increased. Cobalt and/or copper salts soluble in the reaction mixture may be included in the catalyst. Examples describe both batchwise and continuous processes.