baber/WOPTO huggingface dataset:
Patent GB-614659-A (GB)
Title: Improvements in the production of artificial fibres and other articles of modified cellulose and cellulose esters
IPC: C08B15/00
Filed: 1946-07-17
Abstract: Formaldehyde or glyoxal and an acid-reacting catalyst are added to a solution in an organic solvent of a cellulose ester having free hydroxyl groups and the solution is formed into the shape of a filament or other article and subjected to such a temperature as to effect simultaneous evaporation of solvent and reaction between the cellulose ester and the aldehyde.  Articles having reduced solubilities in organic solvents and higher temperatures of softening are obtained.  The modified cellulose ester materials may be subjected to acid or alkaline saponifying treatments, e.g. with solutions of sodium or potassium hydroxide, carbonate, or sulphide, and the ester groups may be entirely removed.  The modified regenerated cellulose articles so obtained are insoluble in cuprammonium solution, and are resistant to swelling in aqueous media.  Preferably, the formaldehyde or glyoxal is added to the spinning or casting solution in an amount not in excess of 10 per cent of the weight of the cellulose ester.  The cellulose ester solution is extruded into an evaporative atmosphere the temperature of which is such that the reaction of the cellulose ester with the aldehyde is initiated.  The reaction may be brought to completion while the filament is maintained in the evaporative atmosphere, e.g. by using a long dry spinning cell, or it may be completed subsequently to the stretching and winding up processes, but before all of the solvent has been removed.  The reaction may be hastened by heating the filaments but preferably it is allowed to continue to completion at room temperature.  The acid-reacting catalyst may be oxalic, tartaric, benzene sulphonic acid, hydrochloric, sulphuric, or phosphoric acid, or an acid salt.
Patent GB-833659-A (GB)
Title: Particle acceleration
IPC: H05H13/04
Filed: 1956-05-10
Abstract: 833,659. Cyclic particle accelerators. HIGH VOLTAGE ENGINEERING CORPORATION. May 10, 1956 [April 9, 1956], No. 21453/59. Divided out of 833,658. Drawings to Specification. Class 39(1). In a cyclic particle accelerator such as a proton synchrotron positive and negative ions are accelerated in opposite directions over the same or different paths up to energies of the order of 10<SP>9</SP> electron volts and then caused to collide to produce nuclear reactions. Where the ions follow the same paths the ion beams are confined to a narrower and narrower pencil by magnetic means as the ion energy is increased or the ion sources are pulsed to cause bunching of the beams so that collisions are confined to particular regions where collision events can be investigated.
Patent GB-298220-A (GB)
Title: Improvements in or relating to percussion fuses for projectiles
IPC: F42C9/02
Filed: 1928-07-24
Abstract: 298,220. Schwob FrÞres et Cie Soc. Anon., and Varaud, A. Oct. 7, 1927, [Convention date]. Projectile fuzes.-Relates to percussion fuzes of the kind comprising a primer 7 and a firing pin 1 kept apart before discharge by a safety member 8 released by the set back of an inertia bolt 12 on discharge and then moved outwards by centrifugal force during flight. According to the invention, the safety member 8 is connected by a train of gear wheels to an escapement wheel against which an eccentrically disposed anchor 17 bears by centrifugal force, thereby causing a delay in the outward movement of the safety member proportional to the speed of rotation of the projectile, so that this member does not complete its stroke until the projectile is in steady flight; moreover, the end of the safety member is tapered at 11 to allow the firing pin 1 under the action of air pressure to approach the primer 7 gradually at the end of the arming stroke of the safety member. The impact occurs and firing takes place sensitively and without delay. The firing pin 1 may be mounted in a thimble 2 against a spring 4, the thimble being itself mounted against a weak spring 21. The thimble is protected by a cap 18 and the inertia bolt 12 is normally locked by a pin 19 attached to a screw plug 22, or to a segment lying in a groove in the side of the fuze body. These restraints must be removed before the fuze is used. Premature, impact on the thimble 2 before the safety member 8 has released the firing pin 1 compresses the springs 4, 21 without causing premature explosion. After arming is completed, the fuze is fired on impact by the blow on the thimble 2 or the momentum of the primer 7. In a modification, the primer 7 is fixed to the fuze body, and the thimble 2 is attached to the firing pin 1 without the interposition of the spring 4.
Patent GB-282627-A (GB)
Title: Improvements in or connected with melting furnaces for liquid fuel
IPC: F27B3/00
Filed: 1927-08-15
Abstract: 282,627. Paille, G. Regnac-. Dec. 23, 1926, [Convention date]. Spray burners.-The Specification as open to inspection under Sect. 91 (3) (a) comprises a spray burner, in which oil is supplied through a pipe 29 to a conduit formed in a longitudinally adjustable oil nozzle 23 controlled by a needle valve 28. The delivery end of the nozzle opens into a converging-diverging passage 13 in a head 31, which is adjustable within the converging portion of a doubleconed passage 30 in the delivery nozzle 14. Air is supplied through the connection 12, and part passes through ports 33 and the passage 13 and part around the head 31. Adjustment of the nozzle 23 and head 31 is effected by an internally threaded hand-wheel 21, which is restrained from longitudinal movement by pins 20 engaging a groove in a part 18 of the burner casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-381637-A (GB)
Title: Improvements in or relating to caps for electric incandescent lamps or discharge tubes
IPC: H01K1/46
Filed: 1931-07-28
Abstract: 381,637. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. July 28, 1931, No. 21528. Convention date, Aug. 7, 1930. [Class 39 (i).] The connection between the cap and bulb of an electric incandescent lamp or electric discharge tube is such that there is some amount of play between the connecting parts thereof to provide a limited free movement of the cap relatively to the bulb, and an elastic body, such as a compression spring, is arranged between the cap and the bulb. The bulb 1, Fig. 1, has secured to its upper end a collar 2 which is formed with three lips or stems 3 adapted to be inserted within apertures 7, Fig. 2, in a screw-threaded cap 6 and bent over at their upper ends, the dimensions of the stem's 3 and apertures 7 being such that a limited movement of the cap 6 relatively to the bulb is obtainable in an axial direction, preferably with no appreciable movement in a tangential direction. A spring 5 which bears on a rim 4 within the collar 2 presses upwardly upon the screw cap 6. The spring may be attached either to the screw cap or to the bulb.
Patent GB-230369-A (GB)
Title: Improvements in perpetual calendars
IPC: G09D3/08
Filed: 1924-09-13
Abstract: 230,369. Schultz, F. Sept. 13, 1924. Calendars.- A monthly calendar of the type comprising a front plate with an annular scale of date figures n, a relatively rotatable disc or ring f with a corresponding arrangement of day names repeated five times and a pointer o for indicating the, current date, is provided with an additional disc p on which the month names s are inscribed, said disc being actuated by the pointer o in its passage from the highest date figure to the lowest figure.
Patent GB-875190-A (GB)
Title: Improvements relating to testing machines
IPC: G01N3/08
Filed: 1958-07-07
Abstract: 875,190. Electric indicating-systems. AMERICAN MACHINE & METALS Inc. July 7, 1958 [July 5, 1957], No. 21689/58. Class 40 (1). [Also in Group XIX] A testing machine has loading and indicating systems in which the force developed by the loading system is balanced by a lesser proportional force in the indicating system 12 which comprises a beam 46 rotatable about a pivot 53 (Fig. 2, not shown) and linkage means, having a plurality of ranges of operation, is provided and connects the output of the loading system to the beam 46 with an indicator for showing the force developed and means responsive to the angular movement of the beam for re-balancing the beam. The load is applied to a lever 11, transmitted to a lever 15 pivoted at 16 and then to a lever 33 by a link 32. The lever 33 can be selectively pivoted about any of the knife-edge fulcrums 34 by rotation of a shaft 39 to move the eccentric portion of one of the cams 40 fixed thereto into contact with a pin 37 urged upwardly by a spring 38. The pin 37 is pushed downwardly by the cam 40 into contact with its respective knife-edge 34. By selection of a fulcrum 34 the force exerted at the free end of the lever 33 can be increased or decreased under the same load. This force is transmitted by a link 13 to the beam 46 which rotates about its pivot 53 (Fig. 2, not shown) and actuates a differential transformer 66. The transformer 66 actuates a servomotor (not shown) which rotates a drum 62 which.moves an endless band 61 carried by two pulleys 59, 60. The band 61 passes through a tube 63 to which it is attached at one end and the tube is connected to a poise or counterbalance 57 on rollers 55, 56. The movement of the band 61 moves the poise 57 so as to rebalance the beam 46. A pointer (not shown) is connected to a shaft 69 of the drum 62 and moves over an indicating dial 14. A buzzer system may be provided to indicate when-the load is higher than the servo-system can follow, and a dash pot 72 to eliminate flutter of the beam may also be provided. Also there may be an arrangement to de-sensitize the motor when the poise 57 reaches its maximum or minimum position.
Patent GB-171737-A (GB)
Title: Improvements relating to battery filling machines
IPC: H01M6/06
Filed: 1920-07-19
Abstract: 171,737. Freeman, L. A. July 19, 1920. Pinch-cocks; electricallyactuated valves.-A machine for filling electrolyte into dry batteries is provided with a hand-actuated valve 54 and an automatic valve 61 both of which operate by compressing the tube. The valve 54 consists, as shown in Fig. 8, of a metal loop 56 which can be drawn towards a fixed bar 55 to compress the tube 50 by means of a cross-piece 57 and screw 58. The automatic valve consists of a member 61 which under the influence of a spring 64 normally compresses the tube 50 against a bar 52. The member 61 is fixed to a shaft 60 which can be partially rotated by an arm 62 which can be raised by an armature 65 actuated by a solenoid 66 as shown in Figs. 1 and 9. The motor 23 is started by means of press switches 34 joined in parallel and actuated by a rail 42 on the holder 11 as it travels along the table. Fig. 9 shows the electric connections. The solenoid 66 is energized at the proper moment to open the valves 61 by means of a contact 78 on the arm 22 engaging a metal plate 73, the arm 22 and plate 73 being connected by brushes 72 to the solenoid circuit. A press switch 70 operated by the holder 11 is also included in the same circuit. The time during which the solenoid is energized is regulated by the position of the plate 73 which is adjustable by a screw and clamp 74, 75. Switches 31<b>, 31<w> are provided to enable the motor and solenoid to be operated if required without the holder 11 being in position.
Patent GB-809128-A (GB)
Title: Improvements in or relating to electron tubes
IPC: H01J19/42
Filed: 1955-07-27
Abstract: 809,128. Discharge tubes. COMPAGNIE INDUSTRIELLE FRANCAISE DES TUBES ELECTRONIQUES. July 27, 1955 [May 18, 1955; July 12, 1955; July 13, 1955(2)], No. 21744/55. Class 39(1). In a discharge tube having flat electrodes arranged in parallel planes perpendicular to the longitudinal axis of the tube, rigid lead-in members arranged in a plane also perpendicular to said axis, Fig. 8, support the electrodes by means of attaching lugs, each lug being bent twice at right-angles with one of its limbs attached to the lead-in member and the other to the electrode. Initially, a shaped blank 51 is stamped out so that the lugs 54, 55, Figs. 3, 4, 7, are formed while still remaining integral with the blank. Two sets of grid wires are then attached, one set 52 across support wires secured to the four lugs 54, and another set 53 across support wires secured to lugs 55. A cathode 60 is also secured in position. The stamping is then attached to the framework of lead-in members 56, 57, these being welded into prepared grooves 58. All the hatched portions such as 59 are now punched out, thus separating the electrodes from each other and leaving them supported by their respective leads and lugs only. The same method may be applied to the assembly of multiple valves such as a double triode. Each triode section is assembled on a separate stamping, as above described, then the two stampings are secured face to face with a common cathode between them, and then the appropriate parts of the stamping punched out to isolate the electrodes, Figs. 12, 13, 14 (not shown). The method can be adapted for continuous assembly, Figs. 15, 16 (not shown), the blanks being in the form of one long continuous strip. The lugs are stamped out, the electrodes fed in and attached at successive work stations. The strip is then cut up into pairs of electrode assemblies, which are folded in two to make a double triode as previously described. Fig. 11 shows a completed tube, the anodes 72 being secured in glass or ceramic cups 73, the ring 74 carrying the lead-in members supporting the electrode system, and also deflectors 75.
Patent GB-203330-A (GB)
Title: Improvements in hydraulic power transmission
IPC: F03B13/00
Filed: 1923-08-28
Abstract: 203,330. Mõcker, B., and Haraldsen, O. Aug. 30, 1922, [Convention date]. Hydraulic transmission of power.-In apparatus for transmitting power hydraulically of the pump and turbine type, the pump A and turbine B are provided with rows of vanes 3, 4 and 5, 6 respectively 'and with stationary channels 7, 8 preferably provided with guide vanes. The direction of flow through the turbine is controlled by means of channelled, relatively adjustable ring members 9, 10.
Patent GB-262052-A (GB)
Title: Method of utilising atmospheric electric currents and electric earth currents for the promotion of plant growth
IPC: A01G7/04
Filed: 1926-09-03
Abstract: 262,052. Fleischer, P., (Assignee of Keller, W.). Nov. 26, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Atmospheric and terrestrial electricity, utilizing.-In the treatment of growing plants with atmospheric and earth currents, the currents are conveyed by a hard steel wire magnetized by a strong permanent magnet which is magnetically and electrically connected with upwardly-directed wires for collecting the atmospheric electricity. The buried earth wire may be extended upwards and carried between two masts above the ground, in which case it is placed in a northsouth direction so as to be magnetized by the earth's field. Fig. 2 shows a form in which an horizontal bar magnet M has its north pole connected to the earth wire St and is connected to upwardly-directed collecting wires. The magnet may, alternatively, be bent at right-angles with its north polar end attached to the mast so as to point vertically downwards. Fig. 3 shows a form consisting of a vertical magnet with collecting wires on its free upper south polar end.
Patent GB-296882-A (GB)
Title: Improvements in or connected with electric lamps and their shades
IPC: F21V17/02
Filed: 1927-08-18
Abstract: 296,882. Bates, A. Aug. 18, 1927. Shade holders.-In a lamp shade holder, for a stand or suspended lamp, in which an upper ring member a, for supporting the shade, and a lower ring member b secured to a lamp-holder c are connected together by one or more rods, tubes, or like members d slidable telescopically within tubes c, the ring members a, b are held in any adjusted relative position by means of screw devices f which pass through slots g in the tubes e and screw into the upper ends of the members d.
Patent GB-981344-A (GB)
Title: Process for the polymerization of fatty alcohols
IPC: C07C33/025
Filed: 1962-06-06
Abstract: The invention comprises polyhydric alcohols having 21-48 carbon atoms per molecule, a saponification value not exceeding 2, an hydroxyl number in the range 160 to 400, an iodine value in the range 60 to 140 and an hydrogenation iodine value in the range 20 to 100.  They may be prepared by heating poly-unsaturated fatty alcohols which contain 12-26 carbon atoms and which have a content of alcohols with conjugated double bonds amounting to at least 3% by weight at a temperature in the range 200-380 DEG  C. with basic compounds of the alkaline earth metals as catalysts in an amount in the range 0.01 to 10% by weight of the starting material.  Suitable catalysts are the bicarbonates, carbonates, oxides, hydroxides, alcoholates and phenolates of magnesium, calcium, strontium and barium.  The amount of catalyst used should be enough to neutralize any acid constituents of the starting mixture as well as to catalyse the reaction.  If the polyunsaturated alcohols in the starting material are not conjugated they may be isomerized to the conjugated form by treatment with isomerization catalysts either before or during the polymerization step.  The reaction may also be carried out in the presence of mono-unsaturated alcohols and saturated alcohols. The monounsaturated alcohols which may contain 3 or more carbon atoms in the molecule also react with the conjugated unsaturated alcohols to form polyhydric alcohols.  If necessary the process is carried out under superatmospheric pressure.  When a lower unsaturated monohydric alcohol is present it is advisable to work in the absence of oxygen and to add small quantities of antioxidants.
Patent GB-1437888-A (GB)
IPC: H01M8/04
Filed: 1974-05-16
Abstract: 1437888 Battery boosted supply systems; control of AC motors UNITED AIRCRAFT CORP 16 May 1974 [18 June 1973 (2)] 21839/74 Headings H2H and H2J A system for supplying power to a load comprises a fuel cell 10, a battery 20 connectable in parallel with the fuel cell via a switch 24 and a circuit for supplying a pulse to the switch when the voltage of the fuel cell falls below a predetermined value, the pulse causing closure of the switch to connect the battery to the load for the duration of the pulse. The load may be a motor, the high starting current of which causes a fall in the voltage of the fuel cell. This fall in voltage is detected by a comparator 32 connected to a monostable multi vibrator 38 which supplies a pulse of a pre-set duration of between one half and five seconds to the transistor switch 24 via an optical isolator 48 and an amplifier 50. The transistor is switched on for the duration of the pulse to enable the battery to provide current to an inverter 16 which supplies the load. When the battery voltage is low, a voltage controlled oscillator 60 produces pulses which turn on a thyristor 56 to enable the battery to be charged by a rectifier 54, the oscillator being switched off when the battery voltage reaches a predetermined value. When the transistor 24 is switched on to connect the battery to the inverter, the oscillator is turned off to prevent charging of the battery.
Patent GB-219319-A (GB)
Abstract: 219,319. Moffa, A., and Moffa, E. July 17, 1923, [Convention date]. Circular machines.- A fitting for producing striped rib fabric has spool-supports 32 - - 34 arranged on a plate, 16, below yarn - guides 20 - - 22 on an arm 19 which also carries the tensioning-device 26, 27 and the saddle 24. A yarn - guide 25 is arranged at the end of the arm 19 above the adjustable funnelshaped yarn-guide 7. The apparatus is rotated by the ribber arm.
Patent GB-316934-A (GB)
IPC: H04L15/26
Filed: 1929-07-17
Abstract: 316,934. Telefunken Ges. f³r Drahtlose Telegraphie. Aug. 6, 1928, [Convention date]. Electric selectors for wireless calling are operated by a pre-determined number of impulses of definite duration and spacing, an impulse that is too long or too short or is spaced by too great an interval from the preceding impulse, causing the starting condition to be restored. The Specification as open to inspection under Sect. 91 (3) (a) describes the following arrangements. Received impulses are repeated by the contacts i1, i2. The first impulse goes to a relay 1Vs which is arranged either by means of a cam N1 or by suitably timed armatures controlling respectively a back and a front contact in series, to close its contact 1Vs after it has received current for a predetermined time and to open it again if the energizing current persists. If the impulse is of the required duration 1Vs is closed when i1 falls back and an impulse is sent to the stepping magnet D of a switch dl - d3 which connects up a similar but differently tuned relay 2Vs. When the required number of impulses has been received, the switch connects up an alarm We. If any impulse subsequent to the .1st is too long or too short, i2 in falling back energizes one of the windings of the release magnet St over a circuit which is opened when the impulse is of the proper duration by a relay U which is energized in parallel with the magnet D and remains locked over winding (ii) during the subsequent impulses. If a space is too long Vp which is energized by the impulses falls back and energizes the release magnet. Impulses in excess of the required number do not affect the selector which is released by means of a key T. In a modification in which all the impulses are of the same duration a single relay Vs is provided. In a further modification, Fig. 3 (Cancelled), in which the switch is of the type that is stepped forward to normal, relays St, which are operated in the same circumstances as the release magnet in the system described above, shift the position in which the alarm is operated so that after a false impulse or space the switch needs the original number of correct impulses to make it operate the alarm, each relay St remaining locked over a 2nd winding (not shown) until the operation of one of the others. There may he several relays Vp connected up in succession like the relays Vs if the code involves spaces of various lengths. The single time-measuring relays may be replaced by pairs of relays one of which operates when an impulse of the required minimum duration is received and the other of which counteracts the effect of the former when the permissible maximum duration is exceeded. The Specification as accepted is limited to systems using no-normal selectors.
Patent GB-1199981-A (GB)
Title: Improvements in or relating to Scaffold Couplings
Inventor: SMALLWOOD LEONARD GEOFFREY BUC
IPC: E04G7/20
Filed: 1967-11-12
Abstract: 1,199,981. Clamps. BOULTON SCAFFOLDING Ltd. 3 Feb., .1969 [12 Nov., 1967], No. 22050/67. Heading E2B. A scaffold sleeve coupling comprises a sleeve 10 having a slot 11 extending from end to end thereof, first, second and third gripping portions 13, 14, 15 of generally circular crosssection, the first and third portions 13, 15 being adjacent the ends of the sleeve, first and second clamping portions 16, 17 of generally U-shaped cross-section interposed respectively between the first and second and the second and third gripping portions and each having apertures for a clamping bolt 22. As shown, a circular stop member 29 having a pair of T-shaped tongs 30, 31 is .located intermediate the ends of the sleeve, the tang .30 being received in an aperture (36) in the wall of the sleeve opposite the slot 11 and the tang 31 being received in recesses 39 in the edges of the slot 11, the head of the tangs being thereafter bent over to retain the stop member in position.