baber/WOPTO huggingface dataset:
Patent GB-152875-A (GB)
Title: Improvements in current collecting shoes for train control systems
IPC: B60L5/32
Filed: 1919-11-07
Abstract: 152,875. Haddan, R., (Regan, J. B.). Nov. 7, 1919. Shoe collectors.- A shoe for electrical train control systems has a hollow stem 13 provided with a plunger 11 which operates in a cylinder 8 connected to a pipe 9 of the airbrake system; the shoe is thus depressed by the pressure in the brake pipes, and fracture of the stem 13 would cause the application of the brakes. The shoe 18 is renewable. The stem 13 has a shoulder 15 to limit its downward movement, and carries a bracket with knife contacts 21, 22 which engage contacts 23, 24, 25, 26 the knives 21, 22 escaping the contacts 23, 24 in the highest position of the shoe. The contacts and cylinder are carried in a casing 5 provided with a removable cover-plate.
Patent GB-814058-A (GB)
Title: Improvements in or relating to an electric retractive switch
IPC: H01H13/28
Filed: 1957-09-02
Abstract: 814,058. Press-button retractive switches. LEECE-NEVILLE CO. Sept. 2, 1957 [Nov. 29, 1956], No. 27608/57. Class 38 (5). A bridging contact 15 is slidably carried on a shaft 14 which when an actuating member 16 is depressed, moves the contact 15 into engagement with fixed contacts 12, 13. During this movement, springs 46, 47 are stressed until when a shoulder 38 on shaft 14 reaches the Fig. 3 position, a sleeve 41 is pressed downwards by the springs to force a group of balls 39 radially inwards to overlie the shoulder 38. On release of member 16, spring 47 forces it outwards again, but shaft 14 is prevented by the balls from following until the spring 47 is unloaded to a certain extent, at which time the spring 46 and a spring 34 acting upwards on the shaft overcome the spring 47. The shoulder 38 then forces the balls 39 outwards and thus the sleeve 41 upwards, and the contacts open suddenly.
Patent GB-1401811-A (GB)
Title: Carriage body for a convertible baby carriage
IPC: B62B9/12
Filed: 1972-06-13
Abstract: 1401811 Baby carriage G GESSLEIN 13 June 1972 [14 June 1971 2 June 1972] 27652/72 Heading B7B A baby carriage has a bottom which can be lowered thereby converting the carriage to a push chair. In one embodiment an undercarriage supports a carriage body 3 with a bottom comprising a rigid portion 6 and a lowering unit 7 having an angled platform 9 hinged at joint 8 to a plane portion 11 which is pivoted at 10. The free end of the lowered unit 7 is secured in a snap-in detent 42 and is guided in a pin guide, or fork, or slit in the carriage body 3. Side walls 19 are attached to the body 3 by flexible or hinged connections. A see through cockpit (22), Fig. 3 (not shown), may be provided. In a modification, Fig. 4, the plane portion 11 comprises an outer part 15 hinged at 16 to base part 14 and to which an extension part 20 may be hinged or plugged therein and braced, to thus allow folding in the dashed line position for support or in the chain-dotted position for serving as a head or foot rest. Brackets 23, 23a, Fig. 6, pivoted to the carriage bottom and actuated by bar 30 provide support when the body 3 is detached from the undercarriage. In an alternative embodiment, Fig. 8, double walls 4, 4a of body 3 guide U-shaped flat brackets 36 which extend through holes in frame 35 and snap-in pins 38 engage bracket holes 37 according to the desired height of base 40. The side walls 19, Fig. 2, may consist of plastics sheet material, fibreboard, or wood and the portions 9, 11, 14, 15, 20 may be similarly constructed or may comprise a support frame carrying a taut fabric or foil sheet. Fluid power units may be used for operating the extensible parts of the body 3. In a further modification, Fig. 12, one end 3<SP>1</SP> is provided with see through portions at the sides and the front face and which may be covered by a hood 21 which is tilted down.
Patent GB-757606-A (GB)
Title: Improvements relating to germicidal compositions
Inventor: MAURICE PHILIP
Filed: 1953-10-08
Abstract: A germicidal composition comprises as an active ingredient a water soluble salt of dichloro-m-xylinol having a solubility of more than 1 per cent w/v in water at 20 DEG C. and a soap or other anionic surface-active agent in such proportion that the activity of the composition against Staphyllococcus aureus per unit weight of the active ingredient is greater than that of the composition prepared in the absence of the soap or other anionic surface-active agent.  The composition is active against both gram negative and gram positive organisms.  Sodium and potassium salts of dichloro-m-xylenol are preferred, and it is desirable to include a trace of free alkali in the compositions to counteract any decomposition of the active ingredient.  A small proportion of an alkali metal sulphite may also be included.  Specified soaps and anionic surface-active agents include coconut oil soap, castor oil soap, alkyl aryl sulphonates such as sodium dodecylbenzene sulphonate, salts of primary and secondary long chain alkyl sulphates (e.g. sodium lauryl sulphate) and the sulphosuccinates (e.g. sodium dioctyl sulphosuccinate). Essential oils such as terpineol may also be included.  In an example (VI) dichloro-m-xylenol and terpineol are dissolved in a 50 per cent w/v aqueous solution of castor oil soap and sodium hydroxide added with stirring.
Patent GB-1349662-A (GB)
Title: Two-part screw closure cover
IPC: B65D39/08
Filed: 1971-06-14
Abstract: 1349662 Stoppers &c. BLAU KG FABRIK FUER KRAFTFAHRZEUGTEILE 14 June 1971 [22 June 1970] 27733/71 Heading B8T [Also in Division F2] In a two-part closure means for a container or pipe socket, comprising a cap part 1 and a screw threaded part 2, mounted to be relatively rotatable and coupling means for coupling the two parts in such a way that when a tightening torque exceeds a predetermined value the coupling disengages, the coupling means comprises a pair of first coupling members 5 housed in a circular depression 7 in the part 2 and urged by a spring 6 radially outwards into circumferential recesses 7<SP>1</SP> and a second coupling member 4 (or 14) rotatable with the part 1 and engaging the members 5, the members 5 being adapted to engage in recesses 7<SP>1</SP> with a ratchet like action. In operation, torque applied to part 1 drives the part 2 through the coupling members 4 and 5 to screw the closure into a receiving socket. When the closure seals in the socket through sealing ring 3, torque above a predetermined level causes the chamfered edges 5<SP>1</SP> of members 5 to engage the edges of recesses 7<SP>1</SP> and be pressed radially inwards thereby, against spring 6 so that the members 5 become disengaged from the recesses 7<SP>1</SP> so preventing overtightening of the closure in the socket. When the closure is to be unscrewed, on rotation of the part 1 the members 5 will re-engage in the recesses 7<SP>1</SP> and drive the part 2 to disengage it from the socket. In a second embodiment the second coupling member is formed as part of the cap part.
Patent GB-935024-A (GB)
Title: Improvements in or relating to automatic correction arrangements for periodic integrators
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: G06G7/186
Filed: 1960-08-10
Abstract: 935,024. Saw-tooth circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. May 16, 1961 [Aug. 10, 1960], No. 27758/60. Class 40 (6). Pulses P are fed to a Miller integrator comprising an amplifier A and a feedback capacitor C, so that saw-tooth waveforms W result at terminal f. The amplifier input and output terminals are clamped together during the intervals between saw-tooth by relay SC, controlled by pulses b. Any drift in amplifier A will result in a low-amplitude saw-tooth waveform occurring during the part of the period S when relay SC is open. The output is sampled by relay ASZC under control of pulses e. The sampled output is amplified and inverted at AM and that output occurring during the time of pulses d (fed to relay ASC) is integrated by capacitor A6 and used to correct the drift and hence the error in slope of waveforms W. The part of the sampled waveform occurring during the time of pulses c (fed to relay AZC) is integrated by R2, K and added to the output at terminal f to correct the zero level of waveforms W. Fig. 3 (not shown) relates to a modification in which pulses c occur during pulses d. The relays may be replaced by electronic switches.
Patent GB-404770-A (GB)
Title: Improvements in or relating to vaporizers on diffusers
Inventor: LEHRS GEORGE EDWARD
IPC: F21V17/04
Filed: 1932-10-06
Abstract: 404,770. Vaporizers. LEHRS, G. E., 4, Hill View Gardens, North Harrow, Middlesex. Oct. 6, 1932, No. 27811. [Class 81 (i).] A vaporizing or diffusing device comprises one or more containers or carriers for the substance to be vaporized which are disposed outside the normal contour of an electric lamp and are adjacent the latter at a localised portion only of the lamp's circumferential surface and spaced from the axis of the lamp. The containers may be suspended from a stirrup or saddle or may be attached to one or more arms depending from a ring-like portion engaging the lamp or may be formed as an integral part of the lamp's surface. Fig. 1 shows an arrangement in which the container 5 is adjustably mounted on a spring arm 4 attached to the lamp-holder by the usual lamp-shade retaining ring. The inner portion 7 of the container may be shaped to fit the lamp. Shields 34 or 35 may be arranged to direct the vapour in the required direction and prevent splashing. The .carrier may be of the form shown in Fig. 7 to hold a block of solid material. Fig. 9 shows a construction in which two carriers 21 are mounted on the ends of a curved spring clip 22. The clip may also be mounted horizontally as shown at 23. Fig. 10 shows a construction in which the carriers 24 depend from hooks 26 attached to a wire saddle fitting over the bulb. In Fig. 11, the carriers 27 are adjustably mounted on the spring arms 28 of a saddle 29. Fig. 12 shows an arrangement in which the containers 31 and 32 are formed as an integral part of the lamp. Fig. 13 shows a carrier adapted to be mounted on a lamp of elongated form. The containers or carriers may be graduated or may be of variable capacity as shown in Fig. 3 with a screw actuated platform 14 to alter the capacity of the container or feed the material upwards. The arms supporting the carrier may also be graduated to facilitate adjusting the container or carrier at varying distances from the filament of the lamp.
Patent GB-1224622-A (GB)
Title: A synchronous generator
IPC: H02K19/26
Filed: 1968-06-12
Abstract: 1,224,622. A.C. generators with D.C. excitation. LICENTIA PATENT - VERWALTUNGS-G.m.b.H. 12 June, 1968 [20 June, 1967], No. 27881/68. Heading H2A. A synchronous generator comprises two part-circuits 23, 24 each including a rectifier arrangement connected to supply excitation direct current to a rotary field winding 12 through two separate slip rings 13, 15 or 14, 16 co-operating with two separate brushes 19, 21 or 20, 22, each part-circuit having its own two brushes and slip rings whilst slip rings of the same polarity are connected together, and a current regulating system 29 which is common to both part-circuits and by differing currents therein is actuated to equalize such currents. In the embodiment shown, which is in fact 3-phase, the arrangements are bridges 25, 26 of diodes 27, the system comprises a differential current transformer 30 connected to a current transformer 32 in either part-circuit, and the supply is from either a transformer 18 regulated by variable resistor 28 or a 3-phase generator regulated on its excitation side. In Fig. 2, the bridges are of thyristors (33) providing via a voltage regulator (38) both the generator voltage regulating and the current equalization; the latter is effected by a regulating element (37) supplied by either D.C. converters (35, 36) or current transformers (39,40).
Patent GB-267084-A (GB)
Title: Improvements in means for admitting steam and air to the induction pipes of internalcombustion engines
IPC: F02M25/022
Filed: 1926-11-06
Abstract: 267,084. Grossmann, A., and Wolf, A. March 4, 1926, [Convention date]. Charge, moistening; induction pipes, fittings for.-Moistened auxiliary air is supplied to the induction pipe by apparatus comprising a container a in which a water mist is produced and a heater k in which the mist is heated. The engine suction draws air through a pipe f and a small tube d which acts as a nozzle and causes an ejector action on water in a constant-level tank a2 through a fine bore tube c and so causes the mist to be produced in a chamber a1; a pipe h connects this chamber to the heater k which is mounted saddle-fashion on the exhaust pipe. A valve for regulating the) supply of air to the pipe f comprises a hand operated cap p which has holes m1, but which can be screwed on to a face r to close the entrance. This valve may be mounted on the dash-board of a motor-car and connected by a flexible pipe s to the pipe f which may have extra openings d for the air.
Patent GB-1194885-A (GB)
Title: Novel Silicone-Containing Dentifrices
Inventor: OSIPOW LLOYD I
IPC: A61Q11/00
Filed: 1967-06-16
Abstract: 1,194,885. Dentifrice; mouth wash. PREVCOAT CORP. 16 June, 1967, No. 27949/67. Heading A5B. [Also in Division C5] A dentifrice or mouth wash composition comprises a dimethylpolysiloxane and a quarternised tertiary cyclic amine in which a C 8-22  aliphatic radical is attached to the quaternary nitrogen atom. A suitable amine is cetyl ,pyridinium chloride. Conventional additives may also be present.
Patent GB-602132-A (GB)
Title: Improvements in machines for producing ice-cream
IPC: A23G9/10
Filed: 1945-10-23
Abstract: 6 0 2,1 3 2. Ice-cream freezers. VELTHUIZEN, A. Oct. 23, 1945, No. 27954. Convention date, Dec. 15, 1943. [Class 29] [Also in Group II] In machines of the type having a rotatable container 1 mounted on a vertical shaft 2, and an eccentric stirring blade 3 rotated in the opposite direction by a vertical spindle 4 driven from the shaft 2 by gearing mounted in a lateral arm 11 of a supporting column 6, the driving motor 21 is mounted horizontally on an oppositely extending external arm 22 of the column so as to balance the weight of the gearing &c. The shaft 2 passes through the upper and lower walls of the gear casing 11 and is driven from the motor by gearing 13, 14. A worm wheel 7 on the shaft 2 drives the spindle 4 which is mounted in a bearing 5 attached to the column.
Patent GB-944787-A (GB)
Title: Photographic objectives
IPC: G02B15/14
Filed: 1962-07-20
Abstract: 944,787. Variable focal length objectives. M. C. SCHNEIDER, and H. J. SCHNEIDER, [trading as JOS. SCHNEIDER & CO. OPTISCHE WERKE], July 20, 1962 [July 26, 1961], No.27984/62. Heading G2J. The objective comprises a front group made up of two positive components with two movable negative components therebetween and a rear group of four components, the focal length of the second component of the front group being less than 2x the focal length of the rear group. Preferably, the first and second components of the front group are cemented doublets, the radius of the cemented surface in the first component being less than 1. 5x that of the front surface and the radius of the cemented surface in the second component being less than 2. 5x that of the rear surface of that component. The axial distance between the last two components of the rear group is preferably less than half the thickness of the third component of this group. Optical data are given for the objective shown, the prism V being included for view-finding.
Patent GB-483644-A (GB)
Title: Improvements in air compressors
IPC: F04B27/02
Filed: 1936-10-15
Abstract: 483,644. Compound air compressors. SLADE, L. W., and WESCOMBE, H. C. Oct. 15, 1936, No. 28013. [Class 8 (i)] A two-stage compressor comprises horizontally opposed high and low pressure cylinders 5, 6, an oil sump 7 between them and a water jacket 8 surrounding the cylinders and sump, the cylinders and sump are formed by a single casting ; an intercooler coil 13 is located in the water bath near the inlet 8a for the water. Oil is carried from the sump by a chain 48 passing over the crank-shaft, forced by the rotation along a helical groove on the shaft and through passages 53, 54 to the roller bearings of the connecting-rod big ends. The crank-shaft is carried on roller bearings 57 and carries a flywheel provided with fan spokes 58a which deliver air to cool a radiator for the circulating cooling water. Elastic ring inlet and outlet valves are provided in the cylinder heads. The second-stage cylinder is provided with a valvecontrolled byepass 41 by which at starting the air may be fed back into the crank-case, whence it is passed to the first-stage cylinder inlet. The opening of the byepass 41 into the crankcase is controlled by a ball valve 35 held open at starting by a spring-pressed plunger thimble 32 sliding within an extension of the crank-shaft. The thimble is connected with a slidable part 29 of a cage enclosing balls 26, which when the speed rises force the part 29 and the thimble back allowing the valve 35 to close, so that the second-stage compressor becomes effective. Specification 483,702 is referred to.
Patent GB-1279621-A (GB)
Title: Improvements in or relating to the measurement of electric field strength
Inventor: WOODS DONALD
IPC: G01R29/08
Filed: 1968-06-13
Abstract: 1279621 Measuring field strength DEFENCE SECRETARY OF STATE FOR 10 Sept 1969 [13 June 1968] 28122/68 Heading G1U [Also in Division H4] To measure the strength of an electromagnetic field the electric component of which is greater than about 0À1 volt/metre, a dipole receiving antenna, short in comparison with the wavelength corresponding to the predominant frequency of the field, is rotated in the field about two axes, such  that each end scans cyclically through a solid angle of 4# steradian and will at some stage be substantially parallel, i.e. within 7¢ degrees, to the direction of the electric component of the field, irrespective of what the direction is. The voltage produced across the gap between the two halves of the dipole is detected, and the peak voltage produced in the course of a complete scanning cycle is determined to indicate the field strength. The dipole Fig. 6 may be mounted symmetrically on a shaft, journalled at 19 in a support 20 and having a toothed pinion 25 engaging a fixed annular rack 28, so that when the support is rotated about a shaft 21, the diple rotates with its shaft. The shaft 21 may be driven by an air turbine. Electrical connections are made via slip rings 29, 32 and brushes 30, 33 to an external measuring circuit. A diode bridge circuit Fig.2 mounted within the dipole provides a signal representing the peak value of the voltage produced across the capacitance between the dipole halves, represented by Cg, in a complete scanning cycle. In an alternative arrangement Fig.7 (not shown) the rack and pinion are replaced by a surface, driven by the air turbine, and pulley driven by frictional contact with the surface. All parts except circuit elements are made from dielectric plastics material. The distant indicating circuit comprises a pair of input FET's, series and common mode rejection filters, band pass filter, range changing attenuator, sampling circuits to detect the maximum signal value and a display device.
Patent GB-1369201-A (GB)
Title: Snap hooks
IPC: F16B45/00
Filed: 1971-09-08
Abstract: 1369201 Hooks SIEBE GORMAN & CO Ltd 8 Sept 1971 [11 June 1970] 28255/70 Heading E2A A nylon hook has an integral housing piece 14 and a supporting socket 11 slotted at 12 to receive the head 23 of a swivelling support loop 21 or (Figs. 4 and 5, not shown) the knot at the end of a piece of string.
Patent GB-191508-A (GB)
Title: A lining for a pneumatic tyre as used on vehicles to prevent punctures and bursts
IPC: B60C19/12
Filed: 1921-10-25
Abstract: 191,508. Brown, V. Oct. 25, 1921. Jackets and covers.-A liner for use between the air-tube and cover of a tyre consists of a moulded body A of a composition of 80 per cent of ground rubber, 16 per cent of ground canvas, 2 per cent of powdered sulphur and 2 per cent of litharge enclose in a canvas sleeve B.
Patent GB-266031-A (GB)
Title: Improvements in automatic electrical switching devices
IPC: H01H50/20
Filed: 1925-11-10
Abstract: 266,031. Gladitz, W. J., and Hohs- F. C. Nov. 10, 1925., Controlling consuming devices.-An automatic circuit-breaker applied to a welding machine, comprises a contact 44 forced between contacts 25 by a pedal to complete the circuit to the primary 47 of a transformer having electrodes 49, 50 in its secondary circuit. The relatively moving part$of the circuit-breaker are connected respectively to the pedal and an electrode-arm so that the electrode is brought into contact with the work as the circuit-breaker is closed. At the completion of the weld, excess current through the secondary, causes a switch 56 to close and energize a coil 33 which withdraws a pin 29 from the lower end of the levers carrying the contacts 25, these levers being forced apart by spring pressure to open the primary circuit. Release of the pedal allows the contact 44 to move upwards and forces the contacts 25 inwards so as to reset the circuit-breaker.
Patent GB-737065-A (GB)
Title: Improvements in incendiary compositions for projectiles
IPC: C06C15/00
Filed: 1953-10-15
Abstract: 737,065. Incendiary compositions for. projectiles. AKTIEBOLAGET BOFORS. Oct. 15, 1953 [Oct. 20, 1952], No. 28492/53. Classes 9(1) and 9(2). An incendiary composition for a projectile contains a combustion means and an oxidation means in such proportions that a dust explosion is produced when the composition is ignited. The composition consists of a combustion means, which may be aluminium powder and oxidation means, which may be barium nitrate, and an explosive such as penthrite or phlegmatised penthrite, the proportions being such that there is a deficiency of the oxidation means. Proportions given as suitable are 60 per cent combustion means, 20 per cent oxidation means and 20 per cent explosive. The composition is mixed dry and a binding agent, e.g. nitrocellulose mixed with resin dissolved in ethyl acetate, added in a kneading machine. The kneaded mixture is sifted through a mesh of the appropriate grain size and then dried to evaporate the ethyl' acetate. Projectiles are then filled in stages with the granulated composition, each increment being pressed to the required density and fuzes are then fitted to the projectiles.
Patent GB-290312-A (GB)
Title: Improvements in braking apparatus particularly applicable to vehicles
IPC: B60T1/08
Filed: 1926-11-12
Abstract: 290,312. Ord, L. C. Nov. 12, 1926. Operating clutches.-Clutch-operating mechanism particularly applicable to vehicles comprises a pump a, Fig. 1, for circulating fluid in a closed circuit d, b<1>, b, b<2>, in which is a valve controlled by a pedal c or other operative member and a by-pass f connected with the closed system on each side of the valve e and having a spring- loaded valve g capable of adjustment from the dashboard or other position accessible to the driver so that the maximum braking effort mav be varied. The pump is supplied with fluid from a tank b and when the valve e, which is provided with a graduated port opening, is closed by the pedal c the pump forces the fluid through the by-pass f. Branch pipes h<3>, i<3> may be connected to pumps h, i, Fig. 2, to declutch the engine through levers i<1>, i<2> respectively. Additional pressure may be applied to the system by means of a small pump k operated by an extension c', Fig. 8, on the pedal c when the latter has reached a predetermined point in its movement. In heavy vehicles a 'small pump m, Fig. 8, operated by the main engine may be cut in whenever the pedal is moved through its full range to build up the pressure in the circuit and make good any loss of fluid, whilst when the pedal is released the pump is by-passed. The clutch may be operated by the pedal c through a series of links and levers n, o, p, q, when the pressure of the fluid in the system is insufficient to overcome the pressure of the clutch springs.