baber/WOPTO huggingface dataset:
Patent GB-1381804-A (GB)
Title: Digital encoding and decoding systems
IPC: G11B5/09
Filed: 1972-02-23
Abstract: 1381804 Digital data coding HONEYWELL INFORMATION SYSTEMS Inc 23 Feb 1972 [18 June 1971] 8437/72 Heading G4C Address marker coders and decoders for three frequency (3F) recording systems are disclosed. In 3F coding there is: (1) A flux reversal at the centre of every bit cell containing a binary 1; and (2) A flux reversal between two adjacent bit cells containing zeros. 3F coding is also known as Modified FM (MFM), Miller encoding, Delay modulation, Quarter-Half Cycle Modulation and Modified NRZ. An address marker is defined as a pattern of signals which gives the reference for the beginning of data transfer and in this case is a sequential repetition of a series of pulses wherein the first pulse is separated from the second pulse by a period 1¢T and the second pulse is separated from the third pulse by a period 2T, where T is the data rate period (pattern F1, Fig. 3). This sequential repetition does not appear in a string of data.  Encoders (Figs. 5 and 6, not shown).-In a first embodiment (Fig. 5) the second stage of a three-stage seven-bit binary down counter provides the marker pulses whereas in another embodiment (Fig. 6) an eight stage parallel inserial-out shift register is initialized by entering a predetermined pattern of bits which is shifted out in the marker code. Decoder (Fig. 7, not shown).-One stage detects 1¢T periods while another stage detects 2T periods. A six count counter counts the number of patterns of 1¢T followed by 2T.
Patent GB-1176602-A (GB)
Title: Tape recorder.
Inventor: WILLIAMS NORMAN LE ROY
IPC: G11B15/16
Filed: 1968-02-21
Abstract: 1,176,602. Threading and feeding record tapes. WARWICK ELECTRONICS Inc. 21 Feb., 1968 [11 Sept., 1967], No. 8450/68. Heading G5R. A tape feed-out means 56 is movable under the control of a manually operable member 28 from an inoperative position, Fig. 1, to an operative position, Fig. 4, in which it feeds tape from a supply reel or cartridge 38 past transducers 50, 52 to a take-up reel 48, seizure of the tape by the take-up reel 40 causing the feed-out means 56 to return to its inoperative position. As shown, rotation of control knob 28 to the "automatic tape feed" position shifts a link 174 to the left, Fig. 4, bringing a belt 242 of the tape feed-out means 56 into contact with the tape on the supply reel 38, bringing a power take-off gear (228, Fig. 3) into engagement with capstan 42, and swinging tape guide 58 in towards the hub of take-up reel 40. The link 174 is held in this position by a latch 288 until the tautening of the tape on seizure by the take-up reel 40 causes a lever 60 to release the latch 288. The tape transport is bidirectional, with two capstans 42, 44, on opposite sides of the tape, and associated pinch rollers 46, 48. Automatic reversal of the tape drive is initiated by the engagement of a hole in a leader tape with a hook (460, Fig. 6) carried by a post 458, the heads 50, 52 being simultaneously shifted to engage different tracks. The knob 28 controls normal forward and reverse operation through a slide 148 and fast forward and fast reverse winding through a second, lower, slide (150) which is engaged by depressing the knob 28. During fast winding the tape is held clear of the heads 50, 52 by a member 426. Each reel 38, 40 is retained on its spindle (510, Figs. 14 and 15) by a spring-latched member (518) pivoted in the bifurcated outer end of the spindle so as either to form a longitudinal extension of the spindle or to be turned sideways to retain the reel and engage a notch therein to provide a driving connection.
Patent GB-948993-A (GB)
Title: Improvements in or relating to toy guns
IPC: F41C3/06
Filed: 1962-03-05
Abstract: 948,993. Toy guns. DIE CASTING MACHINE TOOLS Ltd., and A. R. MILLS. Oct. 31, 1962 [March 5, 1962], No. 8461/62. Heading A6S. A toy gun of the kind in which a projectile is ejected by gases from a detonated percussion cup is characterized in that a breech in the form of a chamber 12 is provided, the wall of the chamber in its outer surface having a recess 13 for a percussion cap, a passage 15, 16 extending through the side wall of the chamber and a hammer for striking the cap in the recess. The chamber 12 is of triangular section of such a size that the chamber cannot be drilled out to a circular section without breaking through the walls of the breech.
Patent GB-168833-A (GB)
Title: Improvements in hydro-aeroplanes
IPC: B64C35/00
Filed: 1917-06-13
Abstract: 168,833. Tellier et Cie, A. June 13, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydroplane vessels.-The hull 1 of a flying boat is provided with two redans 2, 3 and with a keel 4 extending from the nose to the second redan 3, the bottom 5 curving upwards and outwards from the keel. The lower planes 7 are secured by detachable bolts and are inclined upwards, floats 20 being provided at the ends. Inclined struts 8 and tension members 9 are provided between the upper and lower planes 6, 7.
Patent GB-347412-A (GB)
Title: Improvements in and relating to systems for ventilating enclosures such as ships' cabins, offices, and the like
IPC: B63J2/04
Filed: 1930-03-17
Abstract: 347,412. Ventilating ships' cabins and other enclosures. CARRIER ENGINEERING CO., Ltd. and SAINTY, C. L., 24, Buckingham Gate, London. March 17, 1930, No. 8551. [Class 137.] A method of ventilating and circulating air in a series of enclosures such as ships' cabins consists in supplying conditioned air to each from a central source, entraining air from the enclosure into mixture with the supply air and admitting the mixture to the enclosure in a manner to cause circulation of the whole of the atmosphere therein. A fan 1 draws in fresh air from an inlet 3 through a conditioning plant 5 and air from other sources through inlets 7, 9 and distributes the mixture by main duct 16 and branch ducts 25, 27 to the cabins 26. The air supply is controlled by a regulator 17 sensitive to the temperature, humidity or pressure conditions and operating dampers controlling the inlets 3, 7 and 9. The conditioned air issues from high velocity upwardlydirected ejector nozzles 31 arranged at the bottom of a chamber 32 inside or outside the cabin and entrains air from the cabin through louvres 34. In the upper wall 37 of the chamber 32 is an aperture 39 surmounted by a cylindrical rotatable cowl 35 through which the mixture of conditioned and entrained air is admitted to the enclosure. A series of vanes is arranged in the outlet to increase the directional effect. The cowl is rotated from a control knob 53 through suitable gearing. In a modified construction the cowl is fixed and the air is given various directions by means of rotatable vertical louvres in the outlet. An additional control, either automatic or manual, comprising throttle means in the nozzles 31 or in the supply pipe may be provided. Specification 133,897, [Class 137, Ventilation], is referred to.
Patent GB-1248312-A (GB)
Title: Treating tobacco
IPC: C07C51/56
Filed: 1969-02-18
Abstract: 1,248,312. Flavouring tobacco. H. F. & PH. F. REEMTSMA. 18 Feb., 1969 [23 Feb., 1968], No. 8633/69. Heading A2C. Smoke is flavoured by the addition to tobacco, tobacco substitute, or filter material of a compound of the general formula in which R 1  and R 2  denote -H, -CH 3  or -C 2 H 5 . Specific compounds referred to are maleic anhydride, 3-methyl-maleic anhydride, 3-ethyl-maleic anhydride, 3,4-dimethyl-maleic anhydride, 3-methyl-4-ethyl-maleic anhydride, 3,4-diethyl-maleic anhydride, and they may be added by dipping or spraying using volatile solvents.
Patent GB-1355406-A (GB)
Title: Heatstable polyimide resins
IPC: C08L79/08
Filed: 1972-02-24
Abstract: 1355406 Laminates RHONE-POULENC SA 24 Feb 1972 [24 Feb 1971] 8656/72 Heading B5N [Also in Division C3] A heat-stable three-dimensional polyimide resin is obtained by reacting at 50 to 350 C. N 1  mols of a bis-imide N 2  mols of a polyamine R(NH 2 ) x  and N 3  mols of an alazine G-CH =N-N=CH-G wherein Y is H, CH 3  or Cl; A is a C 2  or higher divalent organic radical; x is 2 or a higher integer; R is an x-valent organic radical; G is a monovalent organic radical; and N 1 /(2N 2 /x+N 3 ) is at least 1À3. A heat-curable prepolymer may first be formed directly from all three reactants, from a prepolymer of the bis-imide with either of the other reactants and the third reactant, or from a mixture of separate prepolymers of portions of the bis-imide with each of the other reactants. In an embodiment 1 to 5 wt. per cent of a mono- or di-anhydride of a tri- or tetracarboxylic acid is incorporated in the prepolymer to improve the mechanical properties of the resin. In a further embodiment up to 50% (by weight of bis-imide + alazine and polyamine) of an unsaturated polyester and/or a polymerizable vinyl, maleic, allyl or acrylic monomer containing a -CH=C = group may be heated with the reactants or the prepolymer. Numerous reactants are exemplified and curing may be effected in the presence of polymerization initiators such as lauroyl peroxide or azo-bis-isobutyronitrile or diazabicyclooctane. Up to 10 wt. per cent of an aromatic compound containing 2 to 4 benzene rings and boiling above 250 C. may be added to the resin to lower the softening point of the prepolymer. The prepolymers may be used as a liquid mass, e.g. for hot casting; cooled and ground to powders, e.g. for compression moulding optionally with powdered, spherical, granular, fibrous or flake fillers; or as supsensions or solutions for coatings or forming pre-pregs by impregnating fibrous materials consisting of aluminium or zirconium silicate or oxide, carbon, graphite, boron, asbestos or glass. Specified uses of the resins are insulation for transformers and printed circuits, gears and self-lubricating bearings. In Example 2 a prepolymer is prepared from N,N<SP>1</SP>-4,4<SP>1</SP>-diphenyl methane bis-maleimide-4,4<SP>1</SP>- diamino-diphenyl methane and benzalazene. The product is cooled and ground and the resulting powder of less than 100 Á is suspended in water and used to impregnate satin type glass fibre fabric which has been desized and then treated with γ-aminopropyltriethoxy silane. 12 layers of the impregnated and dried fabric are stacked with weft and warp alternating and laminated at 250 C. and 40 bars. Reference is made to Specifications 1,137,592, 1,190,718, 1,260,819, 1,280,846, 1,280,847, 1,355,401, 1,355,402, 1,355,403, and 1,355,405.
Patent GB-164881-A (GB)
Title: Improvements in convertible automobile bodies
IPC: B60J7/14
Filed: 1920-03-24
Abstract: 164,881. McGuire, J. J. March 24,1920. Vehicle windows; rattling of windows, preventing. - Relates to windows in an opening-top for the body of a motor vehicle which comprises front and rear superstructures arranged to fold down into the body so as to enable the body to be converted into a closed limousine, an open or closed twoseater, or a partly or fully open fourseater. The rear superstructure comprises a rigid head 40, Fig. 1, pivoted between the sides of the body at 43 so as to fold downwardly and forwardly as shown in Fig. 3, and is provided with sliding windows 61. The front superstructure comprises three roof sections 70, 71, 72 hinged together, section 71 being carried by pillars 75 hinged at 76 and sections 70, 72 being detachably connected to removable pillars 82, and to wind-screen members 30 respectively. A transverse panel is detachably mounted between the section 72 and the top of an adjustable hinged seat-back 110 and may be disposed in a slot in the seat-back when out of use. The doors 25, 26 are provided with windows 130, 131, sliding respectively in guides 140, 141 and 160, 161 hinged to the upper corners of the doors, rattling in the guides being prevented by springs 150, Fig. 10. The bottom rails of the windows 130, 131, 61 are fitted with hooks 133 engaging fixed rails 134 when the windows are closed. The windows 100, 170 are removable.
Patent GB-965943-A (GB)
Title: Thermoelectrically refrigerated apparatus
IPC: H01L35/30
Filed: 1962-03-07
Abstract: 965,943. Refrigerators. T. M. ELFVING. March 7, 1962 [March 14, 19611, No. 8779/62. Heading F4H. The low temperature compartment 20 of a refrigerator is cooled by a thermocouple assembly 23 the hot junctions of which are cooled by a second thermocouple assembly 8 which also cools the storage compartment 14. Heat from the compartment 14 and from the hot junctions of the assembly 23 is absorbed by a double-walled liner 11 which is partly filled with a refrigerant and is in direct thermal contact with the cold junctions of assembly 8. A second double-walled member 17 serves to dissipate heat from the hot junctions of assembly 8 and may form a warming compartment. Grooved, anodized aluminium plates 9, 16 and 24 are connected to the junctions of the assemblies 8 and 23. In further embodiments (Figs. 3 to 4, not shown), the compartment 20 is located beneath the storage compartment 14 and the double-walled member 17 is spaced from the liner 11 by thermal insulation, except for a portion in direct thermal contact with the thermocouple assembly 8. The member 17 may be replaced by a finned structure having a fan circulating air thereover.
Patent GB-752374-A (GB)
Title: Improvements in or relating to transfers
IPC: D21H19/44
Filed: 1954-03-26
Abstract: 752,374. Transfers. ROBERTS, W. March 28, 1955 [March 26, 1954], No. 8866/54. Class 100(2). A transfer comprises an absorbent transfer paper, e.g. a simplex paper, coated with a watersoluble adhesive such as gum or starch solution, an initially liquid base material such as collodion, mineral oil or vegetable oil, e.g. lithographic varnish, either clear or pigmented, applied by flooding or lithographic, letterpress or silk-screen printing to the coated surface, display matter printed by a lithographic, letterpress or silk-screen process on to the base material after the latter is solidified, and composed of or finished with a strong adhesive varnish, glass powder dusted on to the varnish while still wet, and a clear protective lacquer coating applied by flooding, spraying or a silk-screen process to the varnish and glass powder when the varnish has set. The glass powder may be in granular form of size 0.015-1 mm. mesh, or a mixture of sizes within said range, and of refractive index 1.529. Glass of two or more colours may be used, in which case all areas to be covered in each colour are printed simultaneously, dusted and dried, and the process repeated for each colour. The transfer is soaked in water, the transfer paper slipped off and the base applied to the article to be decorated and retained by the water-soluble adhesive. The article to be decorated may be a cycle or motor-car reflector, road sign, noticeboard, &c.
Patent GB-459760-A (GB)
Title: Improvements in and relating to lithographic re-transfer paper
IPC: B44C1/16
Filed: 1936-03-25
Abstract: 459,760. Transfer-paper. NESTLER, L., NESTLER, E., and NAUMAN, K., (trading as NAUMAN, R.), 45, Schuhmannstrasse, Dresden, Germany. March 25, 1936, No. 8905. Convention date, Aug. 13, 1935. Addition to 408,872. [Class 96] The lithographic retransfer paper disclosed in the parent Specification is made so that the marking c is visible from both sides of the paper a, as by applying dyestuff &c. during manufacture to the side of the paper which is to receive the re-transfer layer b.
Patent GB-594118-A (GB)
Title: Improvements in and relating to the manufacture of producer gas or water gas used for industrial purposes
IPC: C10J3/00
Filed: 1939-03-21
Abstract: 594,118. Gas-producers. KOLLER, K., and GALOCSY, Z. March 21, 1939, No. 8913. [Classes 55 (i) and 55 (ii)] In order to control the composition of water gas and producer gas, a mixture of gases obtained by combustionof coal dust, sawdust, peat, oil, tar, or gas, in a chamber separate from the producer, as described in Specification 351,892, is introduced into the producer above the gasifying zone, namely into a zone at a temperature below 1000‹C. and above 800‹C. Oxygen may be used instead of air, and steam may be supplied to the external combustion chamber; and iron ores, nickel chips, and nickel or cobalt salts may be added to the charge in the producer.
Patent GB-552733-A (GB)
Title: Improvements connected with the compensation of variable speed a.c. shunt commutator motors
IPC: H02K27/04
Filed: 1941-07-15
Abstract: 552,733. Alternating current commutator motors. HOLROYD, C., BARRACLOUGH, E., and MOSSAY, P. A. H. July 15, 1941, No. 8944. [Classes 35 and 38 (ii)] [Also in Group XXXVII] The speed and power-factor of an A.C. commutator motor M, Fig. 4, are simultaneously controlled by a double induction regulator IR1 the two units of which are mounted on a common shaft and wound to give the same pole number but different transformation ratios so that they produce voltages VM1, VM2 of equal but opposite phase displacement the resulant of which Vr, Fig. 6, travels in an elliptical curve as the regulator is rotated. The component RH, which is in quadrature to the motor secondary voltage, gives the phase compensation necessary for power-factor correction, while the in-phase component OH gives speed variation. To avoid reduction of component RH to zero at one or both of the extremes of the speed range, the ellipse may be made much larger than the range required and the regulator fitted with stops so that only the middle section is used. Either the primary or secondary of the regulator may be wound with unequal numbers of turns in each half, or both may be so wound so long as the transformation ratio of the two halves is different.
Patent GB-725989-A (GB)
Title: Improvements relating to domestic and like wringers
Inventor: BROWN ARTHUR STIRLING
IPC: D06F45/00
Filed: 1953-04-01
Abstract: 725,989. Lubricating bearings. WEST OF SCOTLAND WRINGER CO., Ltd. Aug. 20, 1953 [April 1, 1953], No. 8999/53. Classes 12 (1) and 12 (3). In a domestic wringer, a lubricant absorbent pad is supported between and in contact with the roller spindles 6, 7. The pad may comprise felt located in a container 9 under substantial bearing pressure. The container 9 is mounted in vertical guides 8 in which upper and lower bearings 5, 4 are also mounted. The bearings 4, 5 may be zinc alloy, cast iron or steel. In a modification, Fig. 3, the container 9 is mounted on a bracket 10 secured to the wringer frame 11.
Patent GB-496450-A (GB)
Title: Improvements in and relating to internal combustion engines operating with fuel injection
IPC: F02B23/06
Filed: 1938-03-24
Abstract: 496,450. Oil engines. TRIGGS, W. W. (Soc. Anon. A. Saurer) March 24, 1938, No. 9024. [Class 7 (iii)] In an engine having in the piston a combustion chamber 3 which communicates with the engine cylinder through a restricted opening 5, and in which fuel is injected through a ring-shaped slot at the outlet of an injector 7, the first part of the fuel injection occurs while the nozzle outlet lies above the piston and the' second part occurs while the nozzle outlet projects into the combustion chamber. The nozzle may be closed by a spring-pressed disc valve 11. Specification 448,758 is referred to.
Patent GB-577889-A (GB)
Title: Improvements in or relating to magazines for firearms
IPC: F41A9/69
Filed: 1939-03-22
Abstract: 577,889. Magazines for firearms. SCHILLSTROM, A. V., and O /Y. TIKKAKOSKI AKTIEBOLAG. March 22, 1939, No. 9098. [Class 119] A magazine for a firearm comprises a partition 2 on each side of which spring- pressed followers 3, 4 feed a double row of cartridges, each follower having a knob 5, 6 guided in a recess 7, 8 in the magazine wall, so that one follower 3 is arrested whilst the other follower 4 can still operate to feed the remaining cartridges from the magazine. The edge 9 of the follower 3 is shaped so that when the follower is fully projected, the edge 9 forms a continuation of the partition 2.
Patent GB-1506176-A (GB)
Title: Road maintenance machine and methods
IPC: E01C23/14
Filed: 1975-03-05
Abstract: 1506176 Road surface heating J A JACKSON 5 March 1975 [5 March 1974] 9149/75 Heading E1G [Also in Division F4] A road maintenance machine includes a plurality of horizontal rows of burners 50, each row extending transversely of the machine and the rows being spaced longitudinally of the machine's direction of advance whereby, as the machine advances, strips of an asphalt road are alternately heated and partially cooled as the rows of burners pass thereacross, thus ensuring penetration of the heat without over-heating of the road surface. The burners (Div F4) are mounted on a vertically adjustable frame 40 with sheets 52 of insulation between rows and exhaust hoods mounted on some sheets. Each row has two multiplejet burners, Fig. 3 (not shown). The burner unit 14 may be extended by attaching a similar unit to its front. Various devices for working the softened surface can be attached to the machine. A planing device 18 includes two cutter blades 120 vertically adjustably mounted on mould boards attached to lift gear 16. The blades form a horizontal V with a gap between the two arms to form a windrow of planed road material. Side extensions 130 are provided. The planed material is removed by a flighted conveyor 20. A scarifier, Fig. 12, includes a front portion 160 mounted beneath the chassis and a rear portion 176 behind each rear wheel 23. Each portion has vertically adjustable tines 164 or 174 downwardly pressed by springs 168. The scarified surface is smoothed by a heated screed box and a horizontally reciprocable, saw-toothed screed bar. A grooving roller may be suspended from the lift gear 16 with its horizontal axis transverse to the machine's direction of advance. The roller has radial fins, Figs. 16, 17 (not shown). Mode of use: Chippings may be spread on the road, heated by the machine and then rolled into the softened surface by a separate roller, Fig. 20 (not shown). The scarifiers are mounted on the machine, the old surface heated and scarified; a re-juvenating agent sprayed thereon; and fresh surface material is spread out and rolled in, Figure 21 (not shown). The scarifiers and oscillating screed are mounted on the machine, a re-juvenating agent sprayed on the screeded surface, sand spread thereon and then rolled smooth, Fig. 22 (not shown).
Patent GB-141061-A (GB)
Title: Improvements in roller bearings for shafts
IPC: F16C35/063
Filed: 1920-03-31
Abstract: 141,061. Hegelman, T. March 22, 1918, [Convention date]. Roller bearings.-A roller bearing for shafts &c. comprises a casing 5, Fig. 1, having a race 7, a longitudinally-split bushing 10 forming a race between enlarged cup-shaped ends 12 provided with indentations 13 and abutments 14, Fig. 2, for clamping the bushing to a shaft 4 by bolts 15. The rollers 8 are spaced by cage rings 9. Packing in the casing excludes dust &c.