baber/WOPTO huggingface dataset:
Patent GB-366769-A (GB)
Title: Improvements in or relating to means for moving aeroplanes by manual power
IPC: B64F1/22
Filed: 1931-03-14
Abstract: 366,769. Auxiliary propelling-apparatus for moving aircraft on ground. VICKERS (AVIATION), Ltd., Byfleet Road, Weybridge, Surrey. March 14, 1931, No. 7953. [Class 103 (ii).] To facilitate the moving of heavy aeroplanes across the ground, each landing-wheel 3 or certain of them has applied thereto a manually operated and readily detachable propelling device, preferably comprising a fluted roller 9, adapted to contact with and to rotate the wheel. As shown the roller 9 is revolubly mounted between a pair of spaced arms 7 forming a carrier that is pivoted at 6 to a strut 5, while an adjustable tension rod 12 extends between the carrier and the wheel axle to maintain the necessary pressure between the roller 9 and the wheel tyre. The shaft 10 of the roller is rotated either directly by a crank 11 or indirectly through suitable gearing, and the carrier is further steadied by an additional tangentially extending rod 14. In place of the tension rod 12, a compression device in the form of a toggle, one or both arms of which may be adjustable in length, may be employed.
Patent GB-642641-A (GB)
Title: Improvements in and relating to heating furnaces, drying ovens, kilns and the like
IPC: F27D99/00
Filed: 1940-12-02
Abstract: 642,641. Heat-treatment furnaces. LOW TEMPERATURE CARBONISATION, Ltd., and CARTWRIGHT, J. Dec. 2, 1940, Nos. 7983/41 (divided out of 579,561) and 13443/41. [Class 51 (ii)] ] , In a continuous heat-treatment furnace in which muffle heating is effected by panels of heating tubes in the side walls, a plurality of such panels is provided in both the vertical and the horizontal directions, the temperature in each panel being independently regulatable so as to permit control of the temperature gradient in the heating chamber both vertically and horizontally. Two constructions of heating panels are described, in the first of which each individual panel is of the construction described with reference to Figs. 9 and 10 of Specification 579,561. In the second form shown in Fig. 3, each side wall of the heating chamber is provided with a series of superposed combustion chambers j .. j<3> each fired by two burners k supplied with gas from individually regulatable nozzles m' on a vertical gas main m and with air, preferably preheated, from a surrounding conduit l. The hot gases pass from each combustion chamber through a nozzle n', slidably mounted in an aperture in the wall j<6>, into a header n communicating with superposed heating tubes o arranged in horizontal pairs and delivering at their opposite ends into discharge headers connected to a common waste gas flue. Beyond this series of combustion chambers and heating tubes there is provided at least one similar series to afford control of the heating in the longitudinal direction of the heating chamber. The rate of travel of the charge through the heating chamber may be varied to control the rate of heating.
Patent GB-492528-A (GB)
Title: Process for the manufacture of azodyestuffs
IPC: C09B35/28
Filed: 1937-03-18
Abstract: Azo dyes are prepared by combining tetrazo compounds prepared from aminobenzoylphenylenediamine-o-carboxylic acids of the general formula <FORM:0492528/IV/1> or their nuclear substitution products firstly with one molecular proportion of an o-hydroxy carboxylic acid capable of coupling, and then with one molecular proportion of an azo component coupling in a position adjacent to a hydroxy group.  When the second coupling component contains a free amino group the dye may be diazotized and coupled with an o-hydroxyaryl carboxylic acid. Alternatively, the dyes are prepared by coupling an o-hydroxycarboxylic acid with a diazotized o-hydroxyazo dye of the formula <FORM:0492528/IV/2> (wherein R stands for the residue of an azo component, coupled in a position adjacent to the hydroxy group, containing no free amino group) or a nuclear substitution product thereof.  In examples: (1) 5-p-aminobenzoyl-2-phenylenediamine-carboxylic acid is tetrazotized, coupled with one molecular proportion of salicylic acid and then with one molecular proportion of 1-naphthol-4-sulphonic acid, acetoacetic acid-o-chloranilide, 1-phenyl-3-methyl-5-pyrazolone, p-cresol, 2-acetamino- or 2 - phenylamino - 5 - naphthol - 7 - sulphonic acid, 2-phenylamino- or 2-amino-8-naphthol-6-sulphonic acid, o-chloraniline --> (acid) 1 - amino - 8 - naphthol - 4 - sulphonic acid, 5-nitro-2-aminobenzoic acid --> (acid) 2-amino - 5 - naphthol - 7 - sulphonic acid or 2 - p - aminobenzoylamino - 5 - naphthol-7-sulphonic acid; in the last case the dye is further diazotized and coupled with salicylic acid; (2) 5-nitro-2-aminobenzoic acid --> 1-naphthol-4-sulphonic acid is reduced, treated with p-nitrobenzoylchloride, reduced, diazotized and coupled with salicylic acid; (3) dyes from 4 - p - aminobenzoyl - 2 - phenylenediamine-carboxylic acid, salicylic acid and 2-benzoylamino- or 2-phenylamino-5-naphthol-7-sulphonic are prepared as in (1). Cresotinic acid is also specified as a first coupling component.  The dyes may be aftertreated on the fibre with metallizing agents. Specification 338,111, [Class 2 (iii)], is referred to.
Patent GB-591877-A (GB)
Title: Electroplating apparatus
IPC: C25D7/06
Filed: 1945-03-30
Abstract: 591,877. Electroplating - apparatus; electrodeposition of tin. IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 30, 1945, No. 8074. Convention date, March 30, 1944. [Class 41] Metal strip to be plated is passed across the top of a tank and between a pair of rolls 6, 7 at the exit end, a resilient sealing member 10 being provided between the tank and the lower roll to minimize loss of solution. The sides of the tank are extended to at least the height of the top of the strip. Escaped solution is caught in a tray and returned by pump to the tank. The anodes 3 of the metal to be deposited are supported on conducting supports 2 beneath the strip. The upper roller 6 is of metal and forms the current connection to the strip. The bottom roll is of some material resistant to the electrolyte, e.g. rubber. Similar rolls 4, 5 with sealing member may be provided at the entrance end. In the apparatus shown, two plating units are separated by an intermediate chamber 21 provided with driving rolls 22 and 23. The guide rolls 4, 5 ; 6, 7 are driven by some means not sufficiently positive to cause slipping on the strip. The walls 24 and 25 shield the roll 23 from the plating effects and slow down the motion of the solution. Alternatively, a succession of tanks may be provided with external driving rolls. By providing the upper rolls 4, 6 also with sealing members, the electrolyte level may be raised above the strip and both sides may be plated at once, upper anodes also being provided in this case. A stannous-chloride, sodium fluoride bath of pH about 3 may be employed for tin plating.
Patent GB-1214681-A (GB)
Title: Power control circuit particularly for motor systems
Inventor: LEONARD CHARLES EVERETT
IPC: H02P7/292
Filed: 1968-02-19
Abstract: 1,214,681. Automatic speed control. GENERAL ELECTRIC CO. Feb. 19, 1968 [April 26, 1967], No. 8076/68. Heading G3R. [Also in Divisions H2 and H3] A split-field series motor M is controlled by a differential amplifier 10 in accordance with signals derived from a potentiometer R which are compared with the output of a tachometer generator T, the amplifier being associated with circuit 11 comprising variable frequency unijunction transistor oscillators Q5, Q6. The circuit 11 controls rectifiers SCR1, SCR2, for counter-clockwise or clockwise powered operation respectively. When a CCW signal renders transistors Q1, Q2, conductive, for example capacitor C2 is charged until the peakpoint voltage of transistor Q5 is reached. The capacitor then discharges through transformer T1 for turning-on the rectifier SCR1. Commutation control of the rectifiers SCR1, SCR2 is effected by capacitor C1 which is initially charged, through a secondary winding of saturable reactor SR3 and inductor L1, to a voltage greater than the supply voltage. A charge reversal circuit for the capacitor C1 comprises rectifier SCR3 and inductor L2, the rectifier being fired through transformer T3 associated with oscillator Q7 which supplies a series of pulses to the commutating circuit except when locked-out by the transistor Q8. When the rectifier SCR3 is turned-on, the energy stored in capacity C1 is transferred to inductor L2 and then back to the capacitor. At the end of this cycle, rectifier SCR3 is blocked and the capacitor now discharges through inductor L1 which again reverses the charge on the capacitor, so that, at the end of this second cycle, the charge on the capacitor is sufficient to ensure commutation. When power is initially applied to the system, transistor Q9 conducts until capacitor C5 is fully charged. Transistor Q8 then conducts to shut off the oscillator Q7 since the capacitor C4 is now short-circuited. During the initial charging and charge reversal cycles of the capacitor C1 transistor Q10 conducts to lock-out the transistors Q5, Q6.  When rectifier SCR1 or SCR2 passes current, reactor SR3 fires rectifier SCS1 to lock-out the transistors Q5, Q6, and release the oscillator Q7. Capacitor C1 is discharged through inductor L1 in parallel with inductor L3 and the motor windings until reactor SR3 responds to block the rectifier SCS1. When current flows through the field winding M1, for example, and the capacitor C1 approaches its reverse polarity state, reactor SR1 responds to trigger rectifier SCR4 so that the capacitor C1 discharges to block the appropriate rectifier SCR1. Thereafter, the current in inductor L1 resets the reactor SR3 to shut off the rectifier SCS1 and allow pulsing of the power rectifier SCR1.
Patent GB-388938-A (GB)
Title: Improvements in and relating to dial arrangements, more particularly for wireless apparatus
IPC: H03J1/04
Filed: 1932-03-18
Abstract: 388,938. Adjusting wireless apparatus; indicating-apparatus. IDEAL WERKE AKT.-GES. FœR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. March 18, 1932, No. 8086. Convention date, Dec. 18, 1931. [Class 37.] An indicating-device for wireless and other apparatus comprises a screen 19, on the panel of the device, on which the image of one of three scales 7, 9, 11 is selectively projected through a system of lenses 15, 16, 17, arranged in a casing 18, a single source of light 8 being movable so as to illuminate one of these scales in accordance 'with the adjusted range of the apparatus. The three scales are carried on a disc movable with the condenser shaft, in the case of wireless receivers, and the lamp 8 is carried in a fitting 10 attached to a lever 13, 14, 20, movable with wave-change arrangements. Change over may also be effected by moving the dial or the optical system or the screen itself. The screen may be quite external to the apparatus. In receivers used for gramophone reproduction an additional indicator showing this condition is provided on the dial.
Patent GB-114365-A (GB)
Title: Improvements in, or relating to, Electric Switches.
Inventor: QUINN MARTIN JOSEPH
IPC: G07C9/00
Filed: 1917-06-06
Abstract: 114,365. Quinn, M. J. June 6, 1917. Switches, secret contactcombination.-A secret contactcombination switch comprises an insulating-block having a number of circular recesses a', a<2>, a<3>, in the wall of each of which a fixed contact i, i<1> is mounted so as to be engaged each by a single contact c', c<2>, c<3>, mounted adjustably on rotary spindles e<1>, e<2>, e<3>, when the spindles (which each carry an index finger moving over a numbered dial on the switch cover) are brought to their pre-arranged positions. When the spindles are in these positions, the circuit through the switch is completed from the contact i through the contact c<1> to the rotary spindle e<1>, thence through a strap at the back of the case to the spindle e<2>, contact c<2>, fixed contact i<1>, contact c<3>, spindle c<3>, and thence through another strap to the other terminal of the switch. The movable contact may be a metal roller L, Fig. 6, attached by a wire spring d to the sleeve d<1> adjustably secured to the spindle. To enable the switch to be set to its proper combination in the dark, the walls of its recess are formed with axial grooves b at places corresponding to each index on the dial, so that, by first bringing each index finger to zero by the sense of touch, each spindle can be correctly set by counting the number of ' clicks ' made bv the movable contacts in passing the grooves.
Patent GB-903804-A (GB)
Title: Improvements in and relating to terminals fitted with a resistance
Inventor: STEFFEL WILHELM
IPC: G01K7/16
Filed: 1960-03-08
Abstract: 903,804. Variable resistors; terminal blocks. GLASEL, G. March 8, 1960, No. 8115/60. Classes 37 and 38 (1). A terminal block has a variable resistance adjustable from the outside connected between two terminal contacts. In one embodiment, Fig. 6, a resistance carrier 23 has a toothed head 25 engaging a toothed portion 27 on a rotatable spindle 26 carrying a movable tap 28 comprising a leaf spring 29 urged against the resistance wire 24 by a helical spring and guided between neighbouring turns of the wire. A through connection 39 is provided. In a simpler embodiment, Fig. 1, a resistance carrier 4 is displaced by rotation on a threaded bolt 8. A knurled slip ring 11 engages a slip loop contact 10 and a fixed tap 9 engages the resistance wire. A similar embodiment shown in Fig. 2 is provided with a fixing screw 15. The contact scanning the resistance wire may, Fig. 4, be a roller contact 20 displaceably located on a conducting spindle and having a peripheral groove so that it runs along the resistance wire against which it is urged by a spring 21. Each terminal block has, as shown in Fig. 1, a spring 5 to facilitate fitting on a standard carrier rail 6.
Patent GB-767648-A (GB)
Title: Dynamo-electric igniting machine
IPC: H02K16/00
Filed: 1955-03-21
Abstract: 767,648. Ignition generators. GLOSSL, J. SCHAFFLER-, and GLOSSL, H. SCHAFFLER-, [trading as SCHAFFLER & CO.]. March 21, 1955 [May 5, 1954], No. 8174/55. Class 35. An electric detonator comprises two separate generators 5, 6 driven by separate springs 10, 11 coupled together by a common drive pinion 3 and controlled by a single trip mechanism. The driving gear 1 is fixed to a ratchet 7 which co-operates with a locking and release pawl (not shown), and also to a control disc 8. A second control member 9 is connected to the disc 8 through a lost-motion pin 8b and slot 9<SP>1</SP>. The member 9 has a projecting abutment carrying three contact arms a, b, c arranged to co-operate with contact tracks 12, 13, 14 on a fixed insulating disc 15. In operation, release of ratchet 7 allows springs 10, 11 to turn the generators through driving gears 1, 2. Contact is permanently made to firing terminal 17 through contact a and track 12, but the output circuit to terminal 18 is only completed when the lost motion is taken up and the member 9 is turned far enough for track 13 to be engaged by contact b. Further rotation causes the abutment on member 9 to strike an insulating carrier 16 engaged by contact c and carrying a contact 16b which engages track 14 to shortcircuit the generators. Further motion disconnects tracks 13 and 14 again to isolate the device. A relay 25 prevents imperfect operation of the device. The generators may be connected in series or parallel and are provided with series exciting windings 21, 24.
Patent GB-472596-A (GB)
Title: Improvements in and relating to the carbonisation and distillation of carbonaceous materials
IPC: C10B7/14
Filed: 1936-03-20
Abstract: 472,596. Coking process and apparatus. CHOWN, J. A. March 20, 1936, No. 8361. [Classes 55 (i) and 55 (ii)] Solid carbonaceous materials such as coal slack are distilled at low temperature (500‹ C.) in cartridges 1 which are rolled through an externally heated retort 2, the distillates from the retort being passed into a dephlegmator 3 and condenser 4, and by pipes 18 through the carbonized charge in the cartridges which are moved into a cracking retort 17. The distillates are cracked and the by-products led to a dephlegmator 19 and condenser 20. Each cartridge 1 is provided with a removable hollow body 5 from which radiate hollow fins 6 having apertures 7, a sheath 8 enclosing the structure, so that passage of gases or distillates through the charge is facilitated. Gas-tight closures 15 allow the periodical charging and discharging of the cartridges. The carbonized charge is recovered in the form of briquettes.
Patent GB-709979-A (GB)
Title: Improvements relating to the production of sized paper and to the use of new sizing agents
IPC: D21H17/55
Filed: 1952-04-03
Abstract: Sized paper is made by adding to a dilute paper pulp suspension, 0.1 to 5 per cent. on the weight of the fibres, of the condensation product of 1 to 2 mols. of epichlorhydrin with 1 mol. of one or more aliphatic amines containing at least 16 carbon atoms, adding the filler, if any, forming the paper, and heating at a pH higher than 7, for one to three minutes to dry the paper &c.  In an example (1) to 103.7 gms. of an octadecylamine in 150 c.c. of ethanol was added 13.7 gms. of hydrochloric acid, the solution was heated to 70 DEG C., and 68.6 gms. of epichlorhydrin added slowly while cooling below 70 DEG C.  The mixture was then boiled under reflux for four hours, the solvent distilled off, and the product stripped under partial vacuum.
Patent GB-985645-A (GB)
Title: Chemical process
IPC: C07C37/11
Filed: 1964-03-02
Abstract: A concentrated aqueous solution of trimethylol, phenol substantially free of salts of inorganic acids is prepared by reacting about 3 mols. formaldehyde with 1 mol. phenol in presence of an aqueous alkali metal hydroxide solution in an amount from 0.5-1.2 times the amount equivalent to the phenol, the mixture then being neutralized with sulphuric acid, the main portion of the alkali metal sulphate then being separated.  Crystalline sodium or potassium sulphate crystals are separated generally by filtration or centrifugation, but alternatively sodium sulphate may be separated from the warm reaction mixture as a liquid lower layer.
Patent GB-890751-A (GB)
Title: Improvements in and relating to motor-vehicle headlamps
Filed: 1959-03-13
Abstract: 890,751. Vehicle lamps. CIBIE, P. March 13, 1959 [March 21, 1958], No. 8831/59. Class 75(4) An optical system for motor vehicle headlamps which use electric bulbs of the standardized type providing a dipped beam with a raised cut offline on one side, known as "European dipped lights" bulbs, comprises a bulb holder having one bulb engaging notch offset by an angle substantially equal to 7¢ degrees with respect to the normal position of this notch, this offset being in a leftward direction as viewed by an observer behind the mirror. The lamps provide a symmetrical beam. To produce a beam with the top part blanked off providing a semicircular projection the collar 8b is shortened and the bearing edge 13b is inclined to the optical axis 18b of the reflector and/or the reflector is raised so that the axis 17b of the collar is above the optical axis of the reflector. The glass may have two symmetrical fluted zones and the lamp may be used for driving on the right or left. Alternatively a semi circular beam may have a cut off line raised 15 degrees on each side by increasing the length of the collar and inclining the bearing edge to the optical axis of the reflector, lowering the collar so that its axis is below the optical axis of the mirror with the bearing edge inclined or at right angles to the optical axis produces a similar beam. A screen in the form of a blade in the form of a 15 degrees sector may pivot through 180 degrees on a stud mounted on a bush in the centre of the glass to cut off one raised sector of the beam thus providing a beam with a raised cut off line on one side. The screen may be in front of or behind the glass, in front of the reflector or in front of the bulb. The screen may be fixed in one position.
Patent GB-314320-A (GB)
Title: Improvements in or relating to automatic fire arms
IPC: F41A5/08
Filed: 1928-03-23
Abstract: 314,320. Lahti, A. J., and Saloranta, A. E. March 23, 1928. Breech actions, sliding barrel and breech-block. -Relates to an automatic gun of the short-recoil type in which the breech-block 5 is opened by an accelerator 25 on the barrel-extension 6, the return of the barrel-extension being restrained by a latch 10<b> released only when the breech is closed, and the gun being fired before the barrel has reached its extreme forward position. According to the invention, the hammer 18 is released to strike the firing pin x by an incline 16a on the bolt-restoring spring-pressed tube 16. On firing, and after the run-out momentum has been absorbed, the barrel-extension and breech-block recoil together until the locking lever 8 is released by the inclined groove 9<a>, when the breechblock moves rearwards alone, the catch 10<b> dropping behind the shoulder 9b to retain the barrelextension. The breech-block, through the tube, 16, compresses the spring 13 and is retained by the sear 12, the hammer 18 being at the same time cocked against the action of a spring 14 by a catch 19. The return movement of the breechblock then lifts the latch 10b, and enables the latch 8 to lock the breech-block to the barrelextension, the hammer-latch 19 being released by the incline 16<a> to fire the gun.
Patent GB-798387-A (GB)
Title: Improvements in and relating to visual indicating devices for electric switches
Inventor: PHIPPS DARRELL CECIL
IPC: H01H15/02
Filed: 1956-03-21
Abstract: 798,387. Indicators for switches; switches held set and freed mechanically. CRATER PRODUCTS, Ltd. Jan. 24, 1957 [March 21, 1956], No. 8859/56. Class 38 (5). A neon or other indicator lamp is mounted in or on a movable switch-operating member, the lamp being connected in circuit by spring elements which are formed as to locate the operating member in intermediate or its extreme positions. The lamp 11 is mounted in a sliding operating member 9 and is connected to pins 12, 13 in permanent sliding contact with spring fingers 14, 15 which are connected to the left-hand (output) terminals. Spring blades 16, 17 also connected to these terminals carry contacts co-operating with fixed contacts 18, 19 under the control of notches 20 in the member 9, and projections 21 on blades 16, 17. The fingers 14, 15 are shaped to locate the pins 12, 13 and thus the member 9 in desired positions. The member 9 may have an aperture through which the light of the lamp may be seen, or it may be transparent or translucent.
Patent GB-293117-A (GB)
Title: Improvements in or relating to the suspension of steering road wheels for vehicles
IPC: B60G3/28
Filed: 1927-03-31
Abstract: 293,117. Hagenburg, O. H. G. March 31, 1927. Springs, arrangement of.-A spring suspension for a steering wheel of a motor vehicle and functioning between the stub-axle and steering pivot, comprises a linkage having three or more articulated joints and controlled by a spring. The linkage may be in the form of a parallelogram comprising links e pivotally connected to extensions e<1> on a member b mounted to turn on the steering pivot a on the main axle i which may be rigidly carried by the chassis frame. The movement of the linkage is controlled by a helical spring d. One of the links e may be replaced by a laminated spring fixed to the corresponding extension e<1> in which case the helical spring d may be dispensed with.
Patent GB-181149-A (GB)
Title: Improvements relating to motor vehicle axles
IPC: B60B35/00
Filed: 1921-03-23
Abstract: 181,149. James, L. March 23, 1921. Axle structures; retaining parts when failures occur.-Means constituting an operative connection between a wheel and a fixed part of a vehicle so as to retain the wheel on failure of the axle, comprise a ring a supported between the adjacent faces of the usual brake drum c and the wheel by means of a metal bar f secured to the ring and to a fixed part of the vehicle. In the example shown, the bar f is secured to a tie-bar e of the torque-tube by a member g clamped to the bar f by bolts h and welded to the tie-bar e. The ring is supported from the bar f by bolts b.