baber/WOPTO huggingface dataset:
Patent GB-1117309-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: H02J13/00
Filed: 1965-03-09
Abstract: 1,117,309. Signalling over power lines. LONDON ELECTRICITY BOARD, and A. J. BAGGOTT. 9 June, 1966 [9 March, 1965], No. 10026/65. Heading G4H. A data transmission system comprises means for repetitively imposing an interrogating signal on a repetitive waveform, a number of responder stations forming a group, means at each responder station to identify the interrogating signal, means to enable the responder stations to respond in sequence to the interrogating signal, storage means at each responder station and means controlled by the stored data to impose a corresponding identifiable response signal on the repetitive waveform. The invention is applied to meter the maximum demand of several consumers on electric power supplied over lines 24, 25, Fig. 1. Each has a meter 20 which gives an output pulse when a given quantity of electricity has been consumed, e.g. 1 kW- hour. This signal is stored in store 21 which is read out and reset periodically by pulses from a selector 22. If the rated maximum consumption is 20 kW the stores are read-out 20 times an hour. The interrogating signal 38, Fig. 3, is a spike on the power waveform. This is transmitted from the central station and detected at the responder stations. It is used to step each of the selectors 22, which may be ring counter. Each responder station is connected to a different one of the outputs so that the corresponding stores are read out in turn each at a particular differential time. If, since a store was last read-out, a kilowatt-hour has been consumed, the store 21 will be set and in being reset, it applies a spike 39 to the waveform of line 24, the timing of which identifies the responder station. At the control station the interrogating pulses are applied to a counter 32 having an output for each consumer, corresponding gates being enabled at the correct differential times to pass the signals to the store of a computer. The interrogating signal is imposed on the waveform by triggering a thyristor or silicon-controlled rectifier connected across the lines, the triggering signal being derived by phase displacing the carrier waveform and deriving a pulse at the zerocrossing point. A series of interrogating signals is sent out at predetermined intervals as determined by a timing device. Each series contains a number of pulses corresponding to the number of consumer stations to be read. A three-phase system is described.
Patent GB-513135-A (GB)
Title: Improvements in or relating to measuring arrangements for high-frequency currents
IPC: G01R19/22
Filed: 1938-04-01
Abstract: 513,135. Current measurements; compensating instruments for temperature errors. SIEMENS & HALSKE AKT.-GES. April 1, 1938, No. 10065. Convention date, April 21, 1937. [Class 37] In instruments for measuring high-frequency currents in which the current to be measured is fed through a dry rectifier to a direct current measuring instrument, temperature errors due to the negative temperature coefficient of the rectifier are eliminated by connecting in parallel with the direct-current instrument, a resistance the value of which varies with temperature in the same sense as the rectifier but is substantially independent of the value of the current flowing through it. For measuring a high-frequency current in a conductor 1 a single-conductor transformer is employed having a secondary winding 2, which is connected in series with a dry rectifier 3, a series resistance 4 independent of temperature, and a direct-current measuring instrument 5. A condenser 6 bypasses the alternating current flowing owing to the capacity of the rectifier 3. In parallel with the instrument 5 is a compensating resistance 7 of negative temperature-coefficient, for example of copper or other metal oxide, in series with a resistance 8 independent of temperature. The series resistance 9 of the instrument 5 may have a positive temperature co-efficient for example it may consist in part of copper.
Patent GB-331501-A (GB)
Title: Improvements in machines for harvesting root crops
IPC: A01D23/04
Filed: 1929-04-02
Abstract: 331,501. Brady, D. and Shanahan, P. April 2, 1929. Crops, root, digging and topping machines for. - A machine for gripping the tops of root crops, pulling the roots from the ground, and topping and tailing them comprises a main frame 1 carried on laterally adjustable main wheels 2 and supporting, by a pivot 5, an auxiliary frame 4, on which an endless chain 6 carrying the gripping devices 8 is supported by sprocket wheels 7 driven from the wheels 2. The front of the machine is carried by steering wheels 55 and is adjustable in height. The grippers 8 are pivoted at 10 to the chain 6 and are closed on the root tops when in suitable position by wheels 11 carried on cranked parts of shafts 14 and normally kept close to each other by a helical spring 13. Guides 15 bring the leaves together so that they may pass between the grippers. The grippers having been closed on the root-top are maintained closed by a pivoted bridle 19 adapted, when a root has been satisfactorily gripped, to pass over a cam member 37 on one leg of the grippers. The gripped root is pulled upwards owing to the inclination of the chain 6 and, guided by rails 23, is carried to an adjustable knife 29 pivoted in a pivoted frame 25 and given an oscillatory motion by a spring-pressed pawl 30. After the top has been cut. off by the knife the bridle 19 is forced upwards by a cam rail over the cam 37 permitting the grippers to open to allow the cut top to fall to the ground.
Patent GB-166336-A (GB)
Title: Improvements in and relating to shock absorbing devices for the frames of motorcycles and side cars
IPC: B62K25/24
Filed: 1920-04-12
Abstract: 166,336. Raven, F. C. J., Raven, F. H., and Raven, B. A. April 12, 1920. Spring devices.-In shock-absorbing devices for motor-cycles and side-cars, of the kind wherein a wheel-carrying fork or its equivalent has a link connection with the steering-pillar or with the frame, the motion is controlled by torsion springs, one end of each of which is connected to the fork and the other end either fixed to the link or arranged to abut against it. As shown in Figs. 1 and 3, the steering-fork is coupled to the pillar by links 4, 5, and a torsion spring 9 is arranged on each side of the stem of the T-shaped link 5. One end of each spring is secured at 10 to the adjacent fork limb 2, 7, and the other ends are connected together by a bolt 11 carrying a roller 12 adapted to roll along the underside of the stem of the link. The springs may be similarly applied to a link connecting to the frame the top ends of jointed upper back stays.
Patent GB-714206-A (GB)
Title: Improvements in the bromination of aromatic compounds
Inventor: BRITTON EDGAR CLAY
IPC: C07C205/12
Filed: 1952-04-23
Abstract: Aromatic compounds consisting of a benzene ring containing not more than 3 substituents, including not more than 2 NO2 groups, not more than 2 carbonyl halide radicals, not more than 2 hydrocarbonoxy groups where the hydrocarbon is free of ethylenic or acetylenic unsaturation, not more than 2 phenyl and not more than 3 chlorine or bromine atoms, are brominated in an anhydrous system with a mixture of bromine and chlorine in the ratio of 0.7 to 1.3 mols. to 1 mol. Practically no chlorination occurs, the chlorine present being converted into HCl.  Ring bromination catalysts may be employed. Mono- or di-bromo-products are obtained.  In examples the bromination of nitrobenzene, 2-chloro-4-nitrotoluene, benzoyl chloride, anisole, toluene and 4-nitrodiphenyl is described.
Patent GB-368105-A (GB)
Title: Improvements in or relating to photometric apparatus
IPC: G01J1/08
Filed: 1931-04-07
Abstract: 368,105. Photometers; exposure meters. REISS, F., 26, Elsslergasse, Vienna. April 7, 1931, No. 10291. Convention date, April 4, 1930. [Classes 97 (i) and 98 (i).] In a comparison photometer the comparison surface consists of phosphorescent material and the measurement is made at a known or determined interval after the exposure of the surface to light to produce phosphorescence. In Fig. 2 the comparison surface L has an annular coating with a central aperture through which passes the light to be measured. The instrument has an iris &c. diaphragm B, filter F, diffusing plate D and coloured filter F<1>. For measuring light intensities either the stop B is adjusted at a given interval after exposure of the phosphorescent material until the surface L appears uniformly bright, or, dispensing with the stop, the time which elapses after exposure before uniformity is reached may be measured. The comparison surface may consist of a disc coated all over with the phosphorescent material and having a circularly arranged row of apertures covered by filters of different opacities, or having an annular slot I, Fig. 6, covered by a graduated filter Q. Fig. 9 shows an exposure meter in which the plate C, which may have the form shown in Fig. 6, is mounted in a tube R rotatably mounted in the casing A. A scale of exposures S is marked on the tube R and scales Sb of diaphragms and Sc of plate speeds are provided on the casing A. The tube R is turned until the part of the filter Q which matches the phosphorescent material comes under an index T and the exposure for a given diaphragm is read on the scale S<1>.
Patent GB-208077-A (GB)
Title: Improved reversing gear for reciprocating engines
IPC: F16C3/28
Filed: 1923-04-17
Abstract: 208,077. Barclay, J. G., Barclay, A. N., and Barclay & Co., Ltd. April 17, 1923. Eccentrics.-In a reversing valve-gear the eccentrics 10 are slotted at 11 for movement across the polygonal shaft 1, and are drilled at 18 to engage guiding studs in the shaft. Lugs on the eccentrics carry rollers 8 which engage inclined slots 7 in members 6 formed on adjusting sleeves 2. The sleeves are connected together and are operated simultaneously by a lever 13. The eccentrics are slotted for the passage of the members 6. Specification 200,861 is referred to.
Patent GB-1287232-A (GB)
Title: Merchandising machine with size-adjustable compartments
Inventor: KURIMSKY ALBERT
IPC: G07F9/10
Filed: 1971-04-21
Abstract: 1287232 Article dispensing apparatus ROWE INTERNATIONAL INC 21 April 1971 [22 April 1970] 10439/71 Heading A4T [Also in Division G4] In a coin-feed vending machine which comprises a plurality of compartments 104 for housing the vendible articles, said compartments being arranged in levels with a plurality of compartments in each level, a vend door 18 for each level and door control means individual to each of said doors and operatively connected thereto, the height of the compartments in a level is readibly changeable and the door for that level is readily replaceable with another of suitable height. In the embodiment shown the compartments are formed by shelves 72 detachably fitted into channel members 70 (see also Fig. 3 (not shown)) which are fixed to conveyer chains (54) Fig. 2 (not shown) running in a loop around sprockets (56) and driven in a step-wise manner by a motor (58). The sliding doors 18 are guided by H-section members 20 (see also Fig. 5 (not shown)) which are fixed to a flange (114) extending from a respective plate 116 which also carries the individual door control means. The plates 116 of adjacent levels abut each other and are secured to a bracket (118) that is attached to the machine housing. Operation, control circuit. The insertion of coinage steps arm 224 of coin mechanism 222, Fig.8, to energize one of price lines 220 to condition one or more of solenoids 148 for operation. An initial movement of the door 18 rotates cam 128 (see also Fig. 7 (not shown)) and actuates switch 170 through link 164 to energize the associated solenoid 148 to pivot latch 152 allowing a stop 134 to move out of the path of a portion (133) of cam 128 and hence permitting full opening of the door. The energization of any solenoid 148 also completes the circuit to winding 2R to open contacts 2R1 and close contacts 2R2 and 2R3 which respectively act to energize stop resetting motor 118 and to reset the coin mechanism. Motor 188 acts through a cam on a sliding bar 176 a pin 190 mounted on each stop 134 being situated in a window 180 in the bar. The stop 134 is comprised of two relatively rotatable components 136 and 138 to ensure that if the door is opened too quickly and cam 128 is blocked by pawl 138, the lever 136 is free to move to the unlocked position, followed by pawl 138 on a subsequent partial closure of the door. Interlocks: On full rotation cam 128 lifts a bar 192 which acts on a switch 204 to disable the conveyer motor 58. This motor may be actuated when the doors are closed by means of a switch 38 on the machine housing, closure of this switch opening the circuit to the switches 170 by means of winding 1R.
Patent GB-352063-A (GB)
Title: Improvements in or relating to electric lamps for vehicle head lamps and the like
IPC: H01K1/14
Filed: 1930-04-03
Abstract: 352,063. Electric incandescent lamp filaments. LUND, W. H., 77, School Road, Moseley, and HOWARD, W. C., Oaklands, Charlotte Road, Edgbaston, both in Birming- ham. April 3, 1930, No. 10526. [Class 39 (ii).] Electric incandescent lamps for vehicle head-lamps and the like are provided with a filament a which is of semicircular form and lies in a plane at right-angles to the longitudinal axis of the lamp, the ends of the filament being uppermost and being so positioned that the central or lowermost part of the filament lies on, or approximately on, the longitudinal axis. The ends of the filament are connected to the ends of a pair of spaced supports b, located above the longitudinal axis of the lamp. The filament is preferably formed of fine wire coiled helically. Specification 291,571, [Class 39 (ii), Electric lamps, Incandescent], is referred to.
Patent GB-1547225-A (GB)
Title: Thermographic and photothermographic sheet materials
IPC: G03C1/498
Filed: 1976-03-16
Abstract: A process for producing thermographic or photothermographic recording material, using silver salt complexes having an overall stability constant of the complexing agent of from 4.50 to 10.00, is described.   The silver-based thermographic or photothermographic recording material consists of a support and at least one layer which contains a binder, a reducing agent and a silver compound. The silver compound is here at least one silver salt. The latter is complexed to the extent of at least 90 % by at least one complexing agent having an overall stability constant of from 4.5 to 10. In the photothermographic recording material, 0.25 to 50 mol % of silver halide, relative to total silver, is distributed in the catalytic proximity to the silver salt complex, i.e. homogeneously in the layer. The layer can be applied very easily. Using a new class of silver compounds, the recording materials can be produced more readily than hitherto and show a high sensitivity and improved storage stability.
Patent GB-182582-A (GB)
Title: Improvements in burners for burning metaldehyde
Filed: 1921-04-11
Abstract: 182,582. Electrizitõtswerk Lonza, and Busch, A. April 11, 1921. Addition to 181,512. Portable oil and spirit stoves. - The metaldehyde burner of the parent Specification consisting of a spring-pressed fuel block A arranged in a protecting sheath B, is surrounded by a perforated cup-shaped carrier T on which additional fuel blocks may be placed for producing a greater initial heating effect. The carrier T carries a retaining wire or wires E<1> against which the fuel block is pressed and is threaded on a foot T supporting the sheath B so that the extent of the burning surface can be regulated. The carrier neck t is perforated and spaced from the sheath B so as to allow the passage of an air current. Alternatively the space between the neck and the sheath may contain a layer of asbestos, asbestoscement or other bad heat conductor or the neck or sheath may be formed of glass, porcelain, asbestos-cement or other bad heat conductor. Instead of the wire E<1>, one or more wire stirrups may be fixed to the sheath B or the neck or other part of the carrier, or a metal gauze may be used. The carrier T may support the article to be heated.
Patent GB-126852-A (GB)
Title: Improvements relating to Sparking Plugs for Internal Combustion Engines.
IPC: H01T13/38
Filed: 1918-06-28
Abstract: 126,852. Hopps, B., Lodge, A. M., and Lodge Sparking Plug Co. June 28, 1918. Sparking - plugs. - A shoulder at the inner end of the casing supports a bush b of mica washers surrounded by a mica wrapping c. A ceramic outer insulator d is retained by a gland or by turning over the outer end of the casing and bears either on an enlargement on the electrode or on an internallyscrewed metal collar g resting on the mica bush. The electrode is screwed within the collar g by means of the fixed hexagonal or like head i.
Patent GB-106807-A (GB)
IPC: F04B25/02
Abstract: 106,807. Cheremisinoff, G. March 13, 1917. Compound or multi-stage piston pumps; revolving-cylinder pumps; radial-cylinder pumps. - In air-compressors, a cylinder is provided with a principal piston and an auxiliary piston independently movable therein, the auxiliary piston forcing a supplementary charge into the compression chamber, and the prin. cipal piston compressing the combined engaging bowls 8 on rods 7 connected to the pistons 6. Each piston 6 is provided with a cup-leather, draws in air from the crank-end of the cylinder, and forces it through valves 15 to the other end of the cylinder, the principal piston drawing in air through inlet valves 16 and forcing it, after main and supplementary charges to delivery, whereby an augmented compression is obtained. In the form of pump illustrated, a number of cylinders I are arranged to rotate round a fixed shaft 5 having a common crankpin 4 to operate the principal pistons 2, the auxiliary pistons 6 being operated by means of cams 9 or equivalents compression, through valves 17 to delivery, or to a high-compression cylinder 12, of which the piston 13 is connected by its rod to the principal piston. A further compression cylinder may be employed. The cylinders may be stationary, in which case the shaft 5 and the cams 9 rotate.
Patent GB-140632-A (GB)
Title: Improvements relating to toy building blocks
IPC: A63H33/10
Filed: 1919-04-30
Abstract: 140,632. Purdy, H. April 30, 1919. Building - blocks.- Relates to toy building-blocks the corner blocks of which have grooves a<1>, Fig. 1, formed in the inclined faces so that two blocks abutting against one another as shown can be locked against horizontal displacement by a bar or key-piece c inserted in the grooves. The invention consists in providing horizontal grooves on the inner faces of the blocks, so that by inserting an horizontal key-piece f, Fig. 5, in these grooves, the blocks can be locked against vertical displacement. The vertical bar g, Fig. 5, is of the shape shown, and the key-piece f is formed with a T-shaped slot f<1> through which the bar passes. Thus, the bar, when inserted, also prevents displacement of the key-piece f.
Patent GB-1308542-A (GB)
Title: Catalysts for the reforming of hydrocarbons
IPC: B01J23/74
Filed: 1970-03-05
Abstract: 1308542 Steam reforming hydrocarbons AZOTE ET PRODUCTS CHIMIQUES SA 5 March 1970 [20 March 1969] 10697/70 Heading C5E [Also in Division B1] Hydrocarbons are steam reformed to produce H 2 - and CH 4 -containing gases in the presence of catalysts formed by impregnating shaped pieces of a carrier with a thermally decomposable compound of cobalt and/or nickel in solution and thermally decomposing the compound(s) in situ, the carrier being composed of, by weight, 70-90% combined and uncombined MgO, 10-30% of a spinel of magnesium with cobalt and/or nickel and optionally also with another trivalent metal, and optionally an aluminium silicate (see Division B1-B2). The example describes the reforming of a light boiling fuel (45-120 C) over NiO or MgO/NiO/Cr 2 O 3 /Na 2 O at a steam to carbon ratio of 2À5 or 4 : 1, 18 bar, flow rate 1, inlet temperature of 500 C. and outlet temperature of 660 or 750 C.
Patent GB-854998-A (GB)
Title: Improvements in or relating to burettes
IPC: G01F11/02
Filed: 1959-03-31
Abstract: <PICT:0854998/III/1> A burette 1 having a motor actuated piston 3 in which the displacement of the piston in the cylinder 2 is transmitted to an indicator 14 such as a counter and/or a digit printer, has the gearing for actuating the piston and the gearing for the indicating device separated from each other so that the gearing can be held free from play between the piston, or the spindle thereof and the indicating device.  Corrective gearings may be introduced between the piston and the indicator so as to correct for variations in solutions &c.
Patent GB-527372-A (GB)
Title: Improvements in charge forming devices for internal combustion engines
IPC: F02M29/02
Filed: 1939-04-06
Abstract: 527,372. Mixing charges. JULICH, A. and JULICH, H., [trading as JULICH A.]. April 6, 1939, Nos. 10850 and 10851. Convention dates, April 8, 1938, and May 28, 1938. [Class 7 (ii)] A rotary mixing device mounted on a shaft diametrically disposed in the induction pipe, comprises a number of rings of approximately circular curvature and preferably of sheet metal, at least one of the rings being provided with an inclined surface to adapt it to be rotated by the mixture stream. A ring 3 rotatable about a pin secured to a spring band 7 disposed in the induction pipe 1 is perforated whereas a second ring 4 fast with the ring 3 has serrated edges 5 and lips 10, which may be recessed or perforated, inclined to co-operate with the mixture stream to drive the rings. An inner ring 8 with serrated edges is also free to rotate on the pin and may be provided with driving lips. In Fig. 2 (not shown) two rings similar to the ring 4 are disposed at right angles and rotate on a shaft mounted in a flanged cone secured between the carburetter and induction pipe flanges, the cone flange, if extending into the flow passage, being apertured to permit mixture to flow therethrough and a curved baffle being provided to screen the part of the device opposite the half of the butterfly throttle valve which moves towards the carburetter as the throttle is opened.
Patent GB-553478-A (GB)
Title: Improvements in or relating to books, memorandum pads and the like
IPC: B42D5/04
Filed: 1942-08-07
Abstract: 553,478. Leaf holders. PANZETTA, H. Aug. 7, 1942, No. 11050. Addition to 534,250 and 545,656. [Class 52 (iii)] In a book provided with a front cover 1 and inner and outer back covers 3, 4 adapted to form a stand for the book as described in the parent Specification a leaf and front cover support comprises one or more tongues 9 projecting from the inner back cover 3. The tongue or tongues may be integral or attached to the back cover and in the latter case may be pivoted thereto so as to move into an inoperative position or positions preferably to recesses in the back cover 3. The book hinges may comprise two or more known wire arrangements 5.