baber/WOPTO huggingface dataset:
Patent GB-702208-A (GB)
Title: Improvements in or relating to a windshield wiper
IPC: B60S1/38
Filed: 1950-06-26
Abstract: 702,208. Windscreen cleaners. TBICO PRODUCTS CORPORATION. June 26, 1950 [Sept. 10, 1949], No. 15943/50. Class 138 (1) A wiper blade for a windscreen having a curved surface portion adjoining a substantially flat surface portion, comprises an elongated flexible wiper body, and a holder therefor, wherein the holder provides continuity of support for the wiper body throughout its length and one end portion is rigid for conforming the wiper body to the flat portion of the windscreen and the opposite end portion is flexible for conforming the wiper body to the curved portion of the windscreen. The flexible rubber squeegee body 9 is loosely supported for rocking action within a channelled holder having a bottom wall 15 and comprising a rigid portion having solid side walls 10 and a flexible portion in which the side walls are interrupted to provide spaced fingers 11. The bottom wall 15 may be of uniform thickness throughout its length or the portion above the fingers may be slightly thinner. The holder is provided with end stops 16 to retain the body 9 therein. The rigid portion of the holder is pivotally or loosely connected at 17 to one end of a primary pressure distributing member 8 which is connectible by a clip 7 to the wiper arm 4. The other end of the member 8 is rockably connected at 19 to a secondary pressure distributing member 18, the opposite ends of which are flexibly connected at spaced points 20 to the flexible portion of the holder. The connections between the pressure distributing members and the holder are detachable and comprise pairs of oppositely extending ears 21, Fig. 2 and 3, on the bottom wall 15 engaging in seats 22 in the inner end of the member 8 and the opposite ends of the member 18. The assembly is secured by means of a lock pin 23, Fig. 2, backed by the squeegee 9 and upstanding from the holder so as to enter a recess 24 in the member 8. Specification 702,259 is referred to.
Patent GB-796381-A (GB)
Title: Improvements in or relating to chromium complex compounds of monoazo pyrazolone dyestuffs
IPC: C09B45/16
Filed: 1956-05-24
Abstract: The invention comprises chromium complex compounds which contain less than 2 atoms of metal per 2 mols. of a dyestuff of formula <FORM:0796381/IV (b)/1> where X is Cl or Me and R1 is a straight or branched butyl or amyl radicle which is substituted by one or more OH groups.  They may be made by chroming the product obtained by coupling, preferably in a weakly alkaline to alkaline medium, a diazotized 2-amino-4-chloro-or -methyl-6-nitro-phenol with the appropriate pyrazoline component.  Specified pyrazolones are 1 - phenyl - 3 - methyl - 5 - pyrazolone - 31-sulphonic acid -(111 - methylol- and 111,111-dimethylol) - propyl- and -(111 - methyl - 111-methylol and 111,111-dimethylol)-ethyl-amides.  The products dye fibres spun from organic solvents, e.g. cellulose acetate, polyacrylonitrile and polyesters, and are used as pigments for plastics and lacquers.  Examples are provided of the preparation of metal dyestuffs and their use in colouring cellulose acetate in a blue-red shade, the components used being chosen from those listed above.
Patent GB-883802-A (GB)
Title: High density data storage system
IPC: G11B7/09
Filed: 1960-05-06
Abstract: 883,802. Cathode-ray tube circuits. STANDARD TELEPHONES & CABLES Ltd. May 6, 1960 [May 7, 1959], No. 16153/60. Class 40(7). [Also in Group XL(b)] In apparatus for recording on film or the like digital information displayed on a cathoderay tube, photo-electric means are provided for stabilizing the scan. Light from the spot on the face of the tube 11, Fig. 3, is focused on to a graticule 15 comprising parallel lines having alternate ends extended and is received by a photo-multiplier 17. The spot is deflected alternately left and right at the frequency of an oscillator 31 by the output of a triangular wave generator 33. The output of the photomultiplier controls the vertical deflection through a feedback circuit which supplies an upward deflecting voltage when the cell has less than a predetermined illumination and a downward deflecting voltage when it has more. This keeps the spot 24, Fig. 2, partially eclipsed behind the top of a graticule line 25. When the spot reaches the end of line 25 it is deflected downwards until partially eclipsed by the next line. The feedback circuit comprises two parallel circuits one with a time constant short enough to allow the spot to drop from one line to the next but long enough not to respond to information carrying intensity variations of the spot. The other has a long time constant to correct variations in gain of the amplifier 5. The feedback signal is mixed with a sawtooth wave at a submultiple of the oscillator frequency before application to the tube. The spot is intensity modulated by N.R.Z. (non-return-to-zero) pulses and the variations are recorded on a film 30. Film 30, Fig. 4, is read by a flying spot scanner 11 which energizes a photomultiplier and is "clamped" to the lines of record by a similar feedback system. The spot is reduced to half size for the read out process. Specification 806,274 is referred to.
Patent GB-778091-A (GB)
Title: Chair lift
IPC: B66B9/08
Filed: 1955-06-06
Abstract: 778,091. Stairway lifts; preventing slack in electric cables. SHEPARD ELEVATOR CO. June 6, 1955 [April 26, 1955], No. 16218/55. Classes 78 (2) and 78 (3). In a stairway lift, a rail assembly 32 adapted to be secured to a stairway is provided with a rail 43 co-operating with driven rubber rollers 46, 56 on a lifting carriage, and a rail 44 which co-operates with rollers 101 on an arm 95 to pivot the seat 35 relative to the carriage about the axis of the drive-shaft 54 of roller 46 so maintaining the seat horizontal regardless of the slope of the rail assembly. Further stabilizing rollers 67, 68 and (other rollers not shown) are provided on the carriage to guide it along the rail assembly. Rollers 46, 56 are belt-driven through worm reduction gear by an electric motor 33 which is controlled by an electric circuit (Fig. 26, not shown) which includes upper and lower call buttons, control buttons on the seat arm 37 and cut-out switches operated by a passenger's weight on the foot-rest 91, by the drive belt running slack and by a motor overload. The lift is provided with automatic means for braking the reduction gear when the motor is de-energized. Stack prevention.-Current is fed to the motor and control switches by a cable 40 which is wound on a drum 41 on the shaft 54. A balltype, one-way clutch (Figs. 13-16, not shown), is provided between the drum hub and shaft 54 so that when the carriage is being lowered the cable, which is anchored at its upper end, is paid out under slight tension, whilst when the carriage is being raised the cable is wound on to the drum. Catch gear.-A shaft 108 (Fig. 18) is rotatable by a knurled wheel 110 engaging rail 43, and carries a pair of spring-loaded weights 112 which, on attainment of excessive speed, overcome spring 124 and strike a bar 106. Movement of this bar rotates a further knurled wheel 111, eccentrically pivoted on shaft 108, and forces it into gripping engagement with rail 43.
Patent GB-162491-A (GB)
Abstract: 162,491. Dove, E. J. March 17, 1920. Bush and like extracting tools.-A bush, sleeve, or like extractor, particularly for use in extracting the roller-bearing sleeves of the back axles of Ford motor-cars, comprises a body part adapted to be inserted in the sleeve and a catch or the like adapted to be projected outwardly from the body so as to engage a lubrication or other hole in the sleeve, the body being connected with a handle or other traction-exerting means by a shank on which is a collar adapted to fit the end of the sleeve to position the catch &c. with respect to the hole. In one form, Fig. 1, the body a carries a plunger j pressed outwards by a spring k to engage a hole in the sleeve &c. to be removed, and is connected to a handle e by a shank c on which is the guide or positioning-collar f having a shoulder g to engage the end of the sleeve &c. The plunger j may be locked against inward movement by a wedge pin o pushed down the axial passage in the tool, or a rotary cam may be employed to lock the plunger in either its inner or outer position. In a second form, Figs. 3 and 4, which may be employed without removing the axle from the sleeve, the body a and shank c are hollow to pass over the axle, and the plunger or catch t is pressed outwardly by a bowed spring u. The sleeve &c. is removed by turning the screw r, which is threaded through the end of the shank, so as to bear against the end of the axle.
Patent GB-1037457-A (GB)
Title: Light-controlling devices
IPC: F21V17/00
Filed: 1964-04-20
Abstract: 1,037,457. Light controlling devices. HOLOPLANE Ltd. April 20, 1964 [April 19, 1963], No. 16300/64. Heading F4R. A one-piece light controlling member for a lamp comprises an upper part 1 which may be transparent, diffusing or opaque and is shaped as a bell to receive the lamp holder 15 and neck of the lamp, a mid portion 2 formed as a reflector for redirecting light outwards with a predetermined angle of spread and a diffusing skirt portion 3, the mouth of which corresponds with the angle of spread. The mid portion 2 may be provided with totally reflecting prisms 17 on the outer surface and is arranged with the lower edge slightly above the horizontal plane passing through the centre F of the light source. The member is supported by a threearmed member 10, each arm ending in two horizontal lugs 12 with an intervening vertical lug 13 for centring the fitting. The member 10 is carried by a tube 5 supported from the ceiling by a stirrup 6 enclosed in a cover 8. The prisms 17 may be designed to allow diffusing of a small proportion of light or narrow spaces may be allowed between the prisms for the same purpose.
Patent GB-221035-A (GB)
Title: Improvements in six wheel type road vehicles
IPC: B62D53/08
Filed: 1923-06-22
Abstract: 221,035. Foden, E. R., and Fodens, Ltd. June 22, 1923. Compound or articulated road vehicles. -In six-wheeled vehicles in which the platform c of the trailer is supported upon the side frame members a in such a way that they form side rails, the platform is carried upon the side frames by means of L-shaped wooden filling pieces b. Cross strengthening members may be provided above the axles and the front end of the trailer supported upon the rear of the tractor by spherical shells consisting of upper and lower shells f, g on the tractor and an intermediate shell e on the trailer.
Patent GB-573995-A (GB)
Title: Improvements in or relating to game appliances
IPC: A63F9/14
Filed: 1943-11-05
Abstract: 573,995. Game apparatus; toys. CROFT, T. W. Nov. 5, 1943, No. 16338. [Classes 132 (ii) and 132 (iii)] A game apparatus comprises a wheeled vehicle associated with a ball &c. of magnetic material so that movement of a magnet underneath the vehicle track propels the vehicle along the track and adjusts the wheels for steering. The appliance may be used alone or in conjunction with similar appliances for playing a race game. The model vehicle 28, Fig. 1, is drawn along a track 10 by the action of a magnet 25 upon a steel ball coupled to the front or back wheels of the vehicle or constituting a single front or back wheel of the vehicle. The magnet is fixed to an endless belt 24 passing over end pulleys which are mounted in a carriage 12 movable laterally by means of a steering wheel 13 operating through friction wheels and chain gearing. The endless belt is driven by a speed control mechanism 26 governed by a pedal or manual lever 27. By operation of the steering wheel 13 and pedal 27 the magnet 25 may be moved into any desired position beneath the track. The lateral movement of the magnet displaces the steel ball in a lateral direction and thereby turns the front or other wheels of the vehicle to steer the same along the track. The speed control mechanism 26 for driving the belt 24 is operated by an electric motor connected to a driving shaft 55 and comprises a train of friction wheels. To vary the speed of the belt one friction wheel is moved radially on another wheel by operating the pedal 27. When the speed control mechanism is disconnected (for example by disconnecting the friction-disc drive) a spring drum 86 pulls the magnet and belt back to the starting position. Alternatively the return may be effected by manually operated winch mechanism or by providing the top of the vehicle with magnetic material which is attracted by movement of a magnet over the track. When several vehicles are used, the starting ends of the tracks may be provided with depression 92 for aligning the vehicles. The track may be undulating and the permanent magnet 25 may be replaced by a solenoid or electromagnet variable in strength by a rheostat. In a further modification, Figs. 13-15 (not shown) the solenoid is carried on a wheeled platform electrically controlled to travel backwards or forwards upon rails fixed to the top of the carriage 12.
Patent GB-500929-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D34/49
Filed: 1938-06-01
Abstract: 500,929. Lawn-moovers. SHANKS & SON, Ltd., A., and SHANKS, F. June 1, 1038, No. 16352. [Class 8 (ii)] A lawn-mower mechanism for discharging grass through the door ways 2 of the grass box 1 comprises a blade 3 supported by a pin 9 mounted on the free end of a Peaucellier Cell 10, 12, 16, 17 and thus having a reciprocatory movement along the line A-A, when the cell is rocked by means of the lever 7 manually operated from the mower handle. The link 11 is rigid with the pin 9 thus restraining it from rotating about its axis.
Patent GB-579117-A (GB)
Title: Improvements in or relating to means for increasing the signal to noise ratio in radio transmission systems
IPC: H03K9/04
Filed: 1941-12-19
Abstract: 579,117. Wireless receiving systems. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Dec. 19, 1941, No. 16435. [Class 40 (v)] A system for the demodulation of a carrier wave of complex wave form repetitive at some predetermined period of time, the repetitive characteristic being modified by the intelligence bearing modulation, consists in dividing the modulated complex carrier wave along two paths having a difference in electrical length equal to the repetition period of the carrier wave or an exact multiple thereof, and combining the signals from the two paths in a balanced modulator or differential detector. Either or both of the paths may include a further modulator for combining the wave with a carrier -wave of constant frequency. The signal from 1, which comprises a series.of pulses which are modulated as regards amplitude, time or duration, is applied through channel A directly to one input of a differential detector D and indirectly by channel B to the second input. Channel B includes a delay network DN which introduces a time delay equal to the interval between the pulses. The output, taken from a low pass filter LF comprises the intelligence which is in the form of a modification of the pulse or repetitive part of the complex carrier. If either or both channels A, B contains a modulator for combining with a constant frequency wave (Fig. 2, not shown) the output consists of the intelligence modulated on to the constant frequency wave. In these arrangements, all components of the repetitive signal combine in the detector to give an output while noise being of random phase does not tend to combine to produce an output. The Specification describes the application of the system to the following types of signal :-modulated carrier and tone telegraph transmission, amplitude, duration and time modulated pulse transmissions, and modulation on a phase or frequency modulated carrier wave.
Patent GB-543527-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P7/34
Filed: 1940-11-13
Abstract: 543,527. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 13, 1940, No. 16441. Convention date, Nov. 15, 1939. [Class 38 (iii)] The motor M of a Ward-Leonard set M, G, has its field controlled by a rheostat 16 and contactor 17. Upon closure of a switch 18, generator field contact 15 picks-up and after the generator voltage has risen sufficiently, contactor 17 opens thereby weakening the motor field and causing a relay 19 to close. Upon opening the switch 18, contactor 17 drops and strengthens the motor field. Relay 19 remains closed for a time depending on the amount of resistance 16 originally used to weaken the motor field. After decay of flux in the relay, it opens, whereupon contactor 15 opens, and the generator field is discharged through a resistance 20.
Patent GB-434981-A (GB)
Title: A new or improved pivot
IPC: A47G1/24
Filed: 1934-06-02
Abstract: 434,981. Pivots. SPEGELSTEIN, S., 84, Wallis Road, Hackney Wick, and COOK, C. H., 196, St. Albans Avenue, Bedford Park, both in London. June 2, 1934, No. 16507. [Class 65 (ii)] A pivot, particularly for a mirror, shown in plan, comprises a sleeve portion 1 rising from a flange 4 which is rotatably received between a cylindrical part 7, shown as a cup, within the sleeve and a part 9 to which the part 7 is secured by a pin 11, the part 9 being fixed to one of the members to be connected; the sleeve portion is slit longitudinally on a diametral plane and the two parts 2 so produced are arranged to form a wedge fitting in a corresponding member 13 fixed to the other member to be connected, the axis of the wedge being substantially in the plane of the slit of the sleeve portion 1 and the arrangement being such that the weight of the pivoted article acts to force the wedge into the receiving member 13 and so to contract the sleeve round the member 7 and thus to produce friction to hold the article in any position. In the form shown, the parts are attached to the edge of the mirror and to the supporting post respectively ; in an alternative mounting, the members 9 of the two pivots are formed as brackets projecting from the back of the mirror and the members 13 are fixed to the limbs of a single forked post placed behind the mirror. The pivot parts can be separated by simply lifting the wedge 2 out of the member 13.
Patent GB-1118582-A (GB)
Title: Improvements in or relating to the manufacture of fluorochlorohydrocarbons
Inventor: CHAPMAN JAMES
IPC: C07C17/37
Filed: 1965-04-20
Abstract: Fully halogenated fluorochloroethanes containing 1 to 5 fluorine atoms are converted into other fully halogenated ethane products, at least one component of which contains one more fluorine atom in the molecule than does the starting material, by heating at 250-500 DEG C. in the vapour phase in the presence of an unsupported chromium oxide catalyst and in the absence of added hydrogen fluoride.  The mixture of products generally contains hexafluoroethane, various chlorofluoroethanes, hexachloroethane and tetrachloroethylene.
Patent GB-333329-A (GB)
Title: Improvements in or relating to pocket lighters
IPC: F23Q2/46
Filed: 1929-05-29
Abstract: 333,329. Greenhalf, B. T. P. May 29, 1929. Pocket igniters, frictional.-The friction - wheel h is mounted as in an extension h<1> of a pivoted wind-shield l so that it can be displaced for the purpose of renewing the flint a in a direction substantially at rightangles to the operative face of the flint. The friction-wheel is normally held in contact with the flint by a spring-pressed detent m engaging the lower part h<2> of the extension h<1>. The flint a is mounted in a sleeve b extending into a tube d, attached to the top plate e, and engaging an externally threaded stud f<2> provided with diametrically disposed flats f<1> engaging similar flats d<1> on the tube d. The tube b is held against longitudinal movement by the wick-tube j and a plate k engaging over a flange c so that, on rotating the tube b by means of the flange c, the flint is longitudinally adjusted by the stud f<2> and a spring g. A milled disc h<3> is provided on either side of the friction-wheel to facilitate operation. A wick cap o is carried by a spring- controlled pivoted plate o<1>. Specification 297,188 is referred to. The Provisional Specification describes also a construction in which the windshield is provided with a tongue adapted to be engaged by a detent comprising a double-headed pin mounted in a slotted plate and controlled by a curved blade spring
Patent GB-594499-A (GB)
Title: An improved multivibrator
IPC: H03K3/12
Filed: 1945-06-28
Abstract: 594,499. Multivibrator circuits. WHITFIELD, H. R. June 28, 1945. No. 16565. [Class 40 (v)] In a two valve multivibrator circuit, a locking signal consisting of a series of negative Wavefronts is applied to the outer control grids of both valves, where each wavefront changes the circuit from one position over to the other. The outer grids are connected through high resistance leaks to points of positive potential and are non-conducting when anode current is cut off by the inner control grid. Fig. 2 shows a resistance coupled multivibrator comprising two pentode valves 1 and 2 in which the outer grids are connected to the respective anodes in each case through resistances 10 and 11. The locking signals are fed from point 7 to the outer grids via condensers 8 and 9. The outer grids have little effect on the anode current until they are at a potential lower than that of the cathode. In the state when valve 1 is conducting and valve 2 is cut off, the outer grid of valve 2 will be approximately at .H.T. potential, and the outer grid of valve 1 will. not be much above cathode potential, due to grid current, assisted by the lower voltage of the anode of valve 1. Hence the application of a negative locking pulse to each of the outer grids effects a cut-off in the anode current of valve 1, but has little effect on valve 2 which is about to conduct. In the next state, where valve 1 is non-conducting and valve 2 is conducting, the reverse procedure applies on receipt of the next negative locking pulse. ,The invention is applicable to multivibrators with two, one, or no stable states of oscillation.
Patent GB-1109662-A (GB)
Title: Improvements relating to fuel cells
Inventor: TSEUNG ALFRED CHAN CHUNG
IPC: H01M8/02
Filed: 1964-04-21
Abstract: 1,109,662. Moulding electrolytes. ENERGY CONVERSION Ltd. 20 July, 1965 [21 April, 1964], No. 16573/64. Heading B5A. [Also in Division H1] A semi-solid electrolyte body for a fuel cell is made by cold-pressing a porous blank from powdered electrolyte mix and impregnating the blank with a liquid electrolyte phase which may be identical with one of the mix components. Metallic salts are used and the mix may also include a refractory oxide filter.
Patent GB-193771-A (GB)
Title: Improvements in or relating to the spacing of plates and the like
IPC: B04B7/12
Filed: 1922-06-15
Abstract: 193,771. Maskin - och Brobyggnads Aktiebolaget, and Mortensen, F. June 15, 1922. Plate apparatus. - Surface coolers for milk &c. are constructed of plates provided with prominences or distance pieces formed by indenting the plates A to a less extent than the thickness of the plate and removing the top surface of the plate to the depth of the indentations A<2>. The prominences may have apertures D through them.
Patent GB-770739-A (GB)
Title: Improvements in and relating to machines for the mechanical getting of coal
IPC: E21C27/34
Filed: 1955-06-09
Abstract: 770,739. Mineral-mining machines. STAMICARBON, N.V. June 9, 1955 [June 12, 1954], No. 16633/55. Class 68 (1). In a mineral-mining plough in which the cutters 5, 6 are positioned at either end of a holder 2 pivotally mounted at 3 on the body 1 of the plough, the holder 2 is always positively rotated to press the leading cutter against the mineral face as the plough is hauled along the face by relatively displaceable surfaces on the body. The surfaces may be provided by interconnected wedges 8, 9 that are directly or indirectly secured to a haulage cable 7 and have a limited movement along a groove 11 in the body. Alternatively the surfaces are formed on the body 1 to which the cable 7 is attached and the holder 2 is pivotally secured to a part which can slide to a limited extent in a guideway formed in the body. The surfaces may be formed by or co-operate with the surfaces of rollers.