baber/WOPTO huggingface dataset:
Patent GB-841144-A (GB)
Title: Improved process and apparatus for the preparation of polyamides
IPC: C08G69/28
Filed: 1956-08-27
Abstract: Polyamides are made by reacting equimolecular amounts of a dicarboxylic acid and an aliphatic diamine or a salt thereof in the presence of an amount not exceeding 50% by weight of the composition of an organic melting point depressant having at least one hydroxyl group and more than two carbon atoms, said melting point depressant being chemically inert with respect to said composition and volatile at temperatures of 185 DEG  to 250 DEG  C., if necessary under reduced pressure, converting the mixture by heating at atmospheric pressure and temperatures between 150 DEG  and 175 DEG  C. to an homogeneous melt, continuing the heating to about 250 DEG  C., so that most of the water formed in the reaction and most of the depressant are volatilized, and finally heating gradually to about 275 DEG  C. in an oxygen-free atmosphere, at atmosphoric pressure, to cause polycondensation, then reducing the pressure while maintaining the polycondensation temperature, so that the last residues of said melting point depressant are expelled, and continuing the heating until the desired degree of polycondensation is attained.  Specified melting point depressants being mcresol, p-cresol, o-cresol, phenols, ethylene glycol, propylene glycol, polyethylene glycol and polypropylene glycol. In the examples: (1) hexamethylene diammonium adipate, (2) hexamethylene diammonium adipate and hexamethylene diammonium terephthalate are condensed in the presence of m-cresol.
Patent GB-225673-A (GB)
Title: Improvements in gauges for indicating a ship's draft
IPC: B63B39/12
Filed: 1923-10-20
Abstract: 225,673. Gillie, J. W. Oct. 20, 1923. Draught, determining and indicating. - In draught gauges such as are described in Specifications 134,778 and 192,146, the distance from the edge of the ship's rail to the level of the water is indicated by passing the lowering line A which supports the gauge from a reel B, which is controlled by a brake, over a pulley C the circumference of which is a unit of length and which is associated with a dial E designed to record the number of revolutions made bv the pulley C. When the gauge has been lowered to the desired depth, the valve controlling the entrance of water thereto is operated by dropping a messenger disc which is attached to the cord A by pulling aside a circular spring Q, Fig. 3, which closes a radial slot in the disc. The flexible tube T, Fig. 4, attached to the lower end of the gauge S is buoyed by a float V.
Patent GB-1518909-A (GB)
Title: Electrical connector
IPC: H01R13/05
Filed: 1976-06-23
Abstract: 1518909 Two part couplings BUNKER RAMO CORP 23 June 1976 [23 June 1975] 26199/76 Heading H2E The contact 1, Fig. 3a, of a connector has a terminal portion 6 and a spring contact portion 4 in the form of a one-turn spiral having a widened portion 23 at one end of the contact portion 4 so that when the contact is assembled in the housing 16, Fig. 3d, the extent to which the contact portion projects into the channel 18 provided to receive a mating connector, not shown, is limited by engagement of projection 23 with at least one wall of slot 28, Fig. 3b, communicating between channels 17 and 18. Shoulder 3 locates the contact at the end of the channel 17 and sprung detent 5 locks it in place. The contact portion may have a dimple 14 at the point 13 where it makes contact with a mating connector, not shown, which may be a printed circuit board. Two rows of opposed contacts may be provided to mate with a doublesided connector or printed circuit board.
Patent GB-423958-A (GB)
Title: Improvements relating to electric batteries
IPC: H01M50/566
Filed: 1933-09-22
Abstract: 423,958. Casting composite articles. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and RIBER, C. R., 24, Dorville Road, Lee, both in London. Sept. 22, 1933, No. 26210. [Class 83 (i)] [See also Group XXXVI] A terminal 3 is secured to a battery electrode 1 by inserting it in a hole 8 in the electrode and introducing fusible metal through a second hole 9 communicating with the first. Flanges 5 are formed on the terminal to locate it in the hole and milled portions 7 are also provided. The electrode is held in a jig 11 with an ejector plunger 12 and a lateral opening 14 through which a nozzle 15 for the supply of fused metal under pressure can be inserted.
Patent GB-246911-A (GB)
Title: Improvements in and relating to motor vehicles
IPC: B60K23/00
Filed: 1924-11-03
Abstract: 246,911. Imray, O. Y., (O'Connell Motor Truck Co.). Nov. 3, 1924. Control gear for driving in either direction; controlling different functions by same lever.-Relates to a motor vehicle adapted for driving in either direction in which alternative seats for the driver are located on opposite sides of the steering hand-wheel and the controls are adapted to be operated from either seat. The steering column 18, Fig. 2, may be arranged vertically and the driver occupies either of the seats 20, 21. The clutch and brake pedals 28, 29 are arranged symmetrically on either side of the steering column and each is adapted to operate either the brake or the clutch according to the direction in which the vehicle is driven. This is effected by the mechanism shown in Figs. 3 and 4, in which the pedal 28 is keyed to a shaft 31 and is adapted when moved in one direction to apply the brake by means of a chain 36 attached to an arm 35 also keyed to the shaft 31, and when moved in. the other direction to operate the clutch through an arm 40, a tension link 42, and an arm 41 loose on the clutch operating shaft 39, but adapted to turn it by engagement with a stop 51 keyed thereon. The pedal 29 is loosely mounted on the shaft 31, but is similarly adapted to operate the brake by a chain 37 or to operate the clutch by similar linkage and a stop 52 on the clutch shaft 39. The remaining controlling members are adapted to be operated from either seat.
Patent GB-150974-A (GB)
Title: Improvements in reels or beams
IPC: B65H75/14
Filed: 1920-09-13
Abstract: 150,974. Mossberg Pressed Steel Corporation, (Assignees of Mossberg, F.). Sept. 11, 1919, [Convention date]. Warp beams &c.-Reels, beams, or spools of pressed steel or other ductile material comprise ends 10 having outwardly pressed stiffening-ribs 12, the inner recesses of which are closed by projections 15 on a sheet-metal strip 19, Fig. 3, forming the body portion. Projections 16 on the body portion are bent or riveted over to secure the body to the ends. Binding-bolts 21, Fig. 5, may be used, the projections 16 being then unnecessary. The outer edges of the ends 10 may be stiffened by rolling them over.
Patent GB-639482-A (GB)
Title: Apparatus for making pile fabrics
Inventor: VICTOR VICTOR A
IPC: D04H11/00
Filed: 1947-09-29
Abstract: 639,482. Cemented pile fabrics. VICTOR, V. A. Sept. 29, 1947, No. 26290. Convention date, Sept. 16, 1944. [Class 142 (iv)] The apparatus described in Specification 571,444 is provided with a plurality of jaws 53, mounted on a rotating drum or frame, for receiving and depositing the pile material 82. The pile 82 is fed to a severing table 89 and is cut by a knife 95. An arm 90, operated by a cam 91, clamps the pile and moves the pile forward. The jaws grasp the pile and transfer the severed portion to a vertical position where the pile is embedded in an adhesive backing strip 69. The backing strip is drawn forward by a carding wheel and then passes to a vulcanizing oven. Arms 52, carrying the jaws 53, are moved by a roller 50 thereon engaging a cam track 49 fixed to the drum. The cam track moves the arms to their outermost position when the jaws are opposite the severing position, and also moves the jaws downwards to embed the pile in the backing strip. A device for closing the jaws at the pile severing position comprises a roller 74, mounted on an arm 73 attached to the knife holder and which presses on another roller 75 to cause an arm 77 to rotate a disc 70. A notch 71 in the disc provides initial free movement, and contact of the lower side of the notch with a pin 72 causes the mechanism to operate instantaneously. The jaws are opened at the lowest position by a cam 66 which presses on a ledge 65 and pivots a lever 62 about its support 63. The nose 64 of this lever turns the disc 70 and trips the pin 72 which opens the jaws. A lever 45 pivoted at 54 and rocked by a cam on a shaft 58 engages notches 44 in a disc on one end of the drum and thereby positions the drum. Another lever, similarly operated, engages further notches in the disc and locks the drum when one of the pairs of jaws is at the pile severing station.
Patent GB-1171443-A (GB)
Title: Improvements in and relating to the Formation and Reconstruction of Holograms
IPC: G02B27/00
Filed: 1966-10-21
Abstract: 1,171,443. Holography. BATTELLE DEVELOPMENT CORP. Oct.21, 1966 [Oct.23, 1965], No.26294/69. Heading G2C. In forming a coded hologram an object 407, Fig. 1, is illuminated with a beam 401 of coherent radiation to form a first object hearing beam 415 for impinging on a detector 413, and a second reference beam 411 of radiation is provided which is coherent with beam 401 and may be provided by mirrors 405, 409, from the same laser source 403, so as to form a hologram at the detector 413, there being a translucent material 417 disposed in the path of at least one of the beams to impart the code to the hologram. If the translucent material 417 is placed a distance d 2  in front of detector 413 in the reference beam 411, the same, or an identical translucent material (417, Fig.2 not shown) is placed an equivalent distance from the hologram (413') in the illuminating beam (401') when reconstructing the hologram. Alternatively the translucent material (417) may be placed in the path of the object bearing beam (415, Fig. 3, not shown) when forming the coded hologram (413) and when reconstructing such a hologram the same, or an identical translucent material is placed in the diffracted beam. A pay television system may be formed by using pulse loses to form a multiplicity of holograms on movie film the translucent material being provided by transparencies which are sold to subscribers to decode the pictures.
Patent GB-1092213-A (GB)
Title: An electrode arrangement for use in a fuel cell
IPC: H01M8/14
Filed: 1965-01-08
Abstract: 1,092,213. Secondary electrodes in fuel cells. TEXAS INSTRUMENTS Inc. Jan. 8, 1965 [Jan. 9, 1964], No. 26328/67. Divided out of 1,092,211. Heading H1B. A fuel cell electrode structure comprises a secondary electrode adjoining a porous electrode having a reactive surface area in contact with an electrolyte, said secondary electrode being in electrolyte transfer relationship with the porous electrode and extending outwardly from the body thereof, so increasing the effective reactant surface of the electrode. The secondary electrode may define channels (e.g. for fuel) contacting reactive surface of the porous electrode; this structure may interconnect and structurally support two porous electrodes, in which case the electrolyte may contact the sides of the electrodes remote from the secondary electrode and a gaseous fuel may contact the nearer sides and the secondary electrode structure. A typical embodiment is described in Fig. 21. This Specification has been divided from Specification 1,092,211, along with Specification 1,092,212 and describes batteries and cells also described in these Specifications.
Patent GB-847056-A (GB)
Title: Improvements relating to welded chassis frames
IPC: B62D27/02
Filed: 1958-08-15
Abstract: 847,056. Motor vehicle frames. DAIMLERBENZ A.G. Aug. 15, 1958 [Aug. 28, 1957], No.26369/58. Class 79(4). A chassis frame for a motor vehicle comprises cross members 3, Fig. 1, having closed cross-sections, e.g. tubes or box members, and longitudinal members 7 provided with neck portions 4 having cross-sections corresponding to those of the cross members, into which the cross members are fitted and joined by welds 6 and 7. The cross members may meet the longitudinal ones at an angle. The necked out portions 4 may be provided in a plate 10, Fig. 4, welded to the longitudinal members. In one construction reinforcing elements are fitted within and welded to the longitudinal members.
Patent GB-993712-A (GB)
Title: Purification and recovery of maleic anhydride
IPC: C07C51/573
Filed: 1961-07-20
Abstract: Crude maleic anhydride is purified by fractionating it to recover pure maleic anhydride overhead, the product of the initial alkali metal ion content (calculated as p.p.m. by wt. of Na) multiplied by the residence time in hours at distillation temperature in order to recover overhead 95% of the maleic anhydride content being less than 4,000.  The crude material may be obtained by oxidizing an appropriate hydrocarbon, e.g. benzene, with an excess of air, the major part of the maleic anhydride condensed from the hot gaseous reaction product, the remainder absorbed in water to form maleic acid, which is dehydrated by distilling with an azeotroping agent e.g. xylene, and the maleic anhydride obtained mixed with the condensed maleic anhydride, and distilled as described above. Examples are given.  Specification 853,846 is referred to.
Patent GB-322811-A (GB)
Title: Electric communication cable
IPC: H01B7/14
Filed: 1928-09-14
Abstract: 322,811. Standard Telephones & Cables, Ltd., and Erikson, P. E. Sept. 14.1928. Cables, arrangement and disposition of parts of.- Long submarine telephone and telegraph cables for high frequency transmission, comprise a central conducting core A, insulation B and a plurality of strands or wires C arranged in two or more layers and insulated from each other forming a second or return conductor. The central conductor is made up of insulated wires formed into strands and built into a circular unit. Enamel may be used for the insulation of the wires C. The cable may be covered with jute packing D, armouring wires E and an outer serving of tarred jute yam &c.
Patent GB-866753-A (GB)
Title: Improvements relating to straining and filtering apparatus
Inventor: ENGLISH LEONARD WALTER
IPC: B01D29/00
Filed: 1958-08-18
Abstract: 866,753. Filters in parallel. AUTO-KLEAN STRAINERS Ltd. Aug. 14, 1959 [Aug. 18, 1958], No. 26539/58. Class 46. Liquid, e.g. lubricating oil in a diesel engine, is introduced at 11, Fig. 2, into a header 8 to which is secured a cylindrical housing 1, and passes both inwards through an edge filter 22 consisting of a plurality of juxtaposed perforate discs of two sizes arranged alternately, and outwards through a cylindrical pleated sheet filter 53. The filtrates collect in a passage 14 and leave at 13, that from the filter 53 being restricted at 55. The edge filter members may be cleaned against a fixed scraper assembly (not shown) by manual rotation of their shaft 25. Two excess-pressure by-pass valves are provided, one only being shown at 57. A magnet is provided in the bottom of the housing 1 in the inlet space. In Fig. 4 the filters are not concentric, the top of housing 1 being connected with the top of housing 1a by channels (not shown) in a header 8. In this embodiment, flow through the sheet filter is inwards, and the magnet 5 is located in the inlet 11. The sheet filtering material may be paper, wire gauze, felt or nylon bolting cloth.
Patent GB-1525184-A (GB)
Title: Fire-barrier bulkhead wall
IPC: E04B2/74
Filed: 1976-06-25
Abstract: 1525184 Fire-resistant walls LUCHAIRE SA 25 June 1976 [27 June 1975] 26558/76 Heading E1W A fire-resistant wall comprises an internal metal supporting framework arranged in two planes, one on each side of a central plane of symmetry of the wall, the portions 5, 6 in each plane being interconnected only at spaced points, e.g. by distance pieces 11 and screws 12. The main wall panels 3, 4 are of an incombustible material, e.g. an agglomerate of vermiculite. Steel ceiling and floor rails 5, 6 are bolted into internally-threaded steel sockets 10 in, e.g. a concrete floor or ceiling. The ceiling and floor rails are thermally insulated by blocks 8. A central panel 7 of an incombustible material is employed, and gaps between the central panel and the main panels 3, 4 are filled with, e.g. rock wool. Vertical framing members similar to the floor and ceiling, rails are provided at main panel junctions (Fig. 2, not shown). These framing members may be interconnected by angles 21 insulated from the main panels 3, 4. The central panel 7 could be of plasterboard.
Patent GB-278734-A (GB)
Title: Improvements in and relating to chromium plated tools
IPC: B23D77/00
Filed: 1927-10-07
Abstract: 278,734. British Thomson-Houston Co., Ltd., (Assignees of Hollnagel, H. P.). Oct. 8, 1926, [Convention date]. Tools; reamers; taps; milling-cutters.-Metalcutting tools such as reamers, taps, milling- cutters, or their cutting portions are coated with chromium. The tools are first cleaned in petrol and then immersed in a hot alkali. They are then made the cathode in an alkali bath of 10 per cent concentration, using a current density .of 0.5 to 1.0 amps. per sq. in. After rinsing they are immersed in 10 per cent hydrochloric acid. If loose scale is present the tool is scrubbed to remove it. The tools are then rinsed in running waber and transferred in a wet condition to a plating bath containing 3 gms. chromium sulphate, 7 gms. of chromium carbonate, and 270 gms. of chromic acid per litre, the current being preferably turned off during immersion. The tools may be given a preliminary treatment as anode before the plating .operation. The tools may be rotated at a speed of 35 revs, per minute during plating. The bath is agitated by blowing in air. The anode may consist of chromium contained in a lead basket. Chromium and lead strip anodes so disposed as to give the necessary current distribution may also be used; lead anodes may be placed directly in recessed parts of the tools. Variable resistances may be connected in series with each anode. The temperature is maintained at 22-26‹ C. for a grey coating or at 35-42‹ C. for a bright coating. The current density may bE at 0.7-2 ams. per sq. in. 1¢ amps. per sq. in. at room temperature is suitable for a grey coating. The bath is more satisfactory after being in use for some time.
Patent GB-686049-A (GB)
Title: Improvements in feed mechanisms for automatic firearms
IPC: F41A9/33
Filed: 1950-10-31
Abstract: 686,049. Automatic firearms. BREVETS AERO-MECANIQUES SOC. ANON. Oct. 31, 1950 [Nov. 18, 1949; May 26, 1950], No. 26594/50. Class 92(ii) The energy developed during the recoil of a firearm is used partly to act on the belt fed mechanism to impart to the belt a portion of the necessary displacement for the feeding of the next round, and partly to charge an energy accumulator which, during the next run-out of the firearm, delivers the stored energy to the mechanism thus imparting to the belt the remainder of the said displacement. In the construction shown, Figs. 3 and 8, the cartridge feed mechanism, which includes a transversely reciprocating member 22 associated with pawls for urging the belt intermittently in the feed direction, is housed in a fixed casing 9. The member 22 is reciprocated by a pivoted lever 13 pivoted in the casing and having a short forward arm which is engaged and rotated by a cam member 17 which is mounted on a part 31 which recoils with the barrel. This cam is pivoted at 32a on a spring- controlled arm 32 which pivots on the part 31 and carries a rolled 17a adapted to engage and depress an energy accumulator 28. In operation the spring 33 of arm 32 normally maintains the heel of cam 17 against the part 31 (see Fig. 3), and when the part 31 recoils on firing a shot the cam and its roller 17a are forced between the accumulator 28 and a roller 16 on the lever 13, thus moving the lever and the accumulator by amounts dependent on their resistances to motion. During runout the roller 16 by engaging behind a projection 17b of the cam, pulls the heel of the cam clear of the part 31, (see Fig. 8), and thus enables the accumulator to complete the operative movements of the lever 13 and member 22, the cam acting as a transmission member. A spring 19 restores the lever to its initial position when the other parts return to the position shown in Fig. 3.
Patent GB-1022894-A (GB)
Title: Improvements relating to motor vehicle jacking arrangements
IPC: B60S9/12
Filed: 1963-07-04
Abstract: 1,022,894. Vehicle jacking systems. REGIE NATIONALE DES USINES RENAULT. July 4, 1963 [Sept. 17, 1962], No. 26603/63. Heading B7J. A motor vehicle jacking system comprises a pair of hydraulic jacks located one on each side of the vehicle in a vertical post forming part of the structure of the vehicle. The cylinder 3 of the jack is located between a strap 10 in the door frame post 2 and a lower fixing plate 9 in a longitudinal member 7 of the vehicle which may be of integral chassis-body construction, and is supplied with hydraulic fluid through a connection 15 from an engine or hand-operated pump. A rubber sleeve 4 encloses the lower end of the cylinder and locates it in a socket member 5. The piston 14 is provided with holes 13 and 14 whereby it may be locked in its operative and inoperative positions.
Patent GB-1083163-A (GB)
Title: Improvements in or relating to thread delivery devices in knitting machines
Inventor: SCHMIDT RICHARD
IPC: D04B15/48
Filed: 1964-06-26
Abstract: 1,083,163. Eddy-current couplings. FRANZ MORAT G.m.b.H. June 26, 1964, No. 26644/64. Heading H2A. [Also in Division D1] An eddy-current coupling for the thread delivery roller 10 of a knitting-machine, comprises a horse-shoe magnet 6 on a driving shaft 1 which co-operates with a disc 7 of electrically conducting material which is secured on the shaft 8 of roller 10, together with a disc 9 of magnetically permeable material. In a modified arrangement a core is provided for, and rotating with, the magnet to leave air gaps into which the wall of an open-ended hollow driven cylinder extends. In another arrangement, a transverse bar magnet rotates within a cup-shaped member of conducting material on the driven shaft which may be surrounded by a cup member of magnetically permeable material. In a further arrangement, a cup-member of conducting material is mounted on the driving shaft and its wall extends through air gaps between a bar magnet transversely arranged on the driven shaft and a cup of magnetically permeable material also on the driven shaft.
Patent GB-998342-A (GB)
Title: Improvements in and relating to cryotrons
IPC: G11C11/44
Filed: 1963-07-05
Abstract: 998,342. Cryotrons. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 5, 1963 [July 9, 1962], No. 26751/63. Heading H1K. The current in the control conductor of a cryotron necessary to switch the gate to the normal conducting condition is made substantially independent of the gate current by using a thin planar layer as the gate conductor and so arranging the control conductor in relation to it that its magnetic field strikes the gate orthogonally. The gate and control conductors are preferably flat parallel strips of the same material, e.g. tin, vapour deposited on a quartz substrate. Typically they are 400  thick and 25 Á apart, the control conductor preferably being narrower than the gate, for instance 20Á to 80Á. This enables a high amplification factor Igo - to be obtained. In all cases the gate Ico conductor must be not more than twice the current penetration depth thick.