baber/WOPTO huggingface dataset:
Patent GB-573563-A (GB)
Title: Method of making nitriles and products thereof
Filed: 1942-02-26
Abstract: Halogen is partly or wholly removed by treating with alkali metal alcoholates a  : b -dichlorpropionitriles containing in the a -position either another chlorine atom or a methyl group.  In examples, a  : b -dichlor-a -methylpropionitrile and trichlorpropionitrile are treated with sodium methylate and ethylate. Products include a  - methyl - b  - chloracrylonitrile, which may be interpolymerized with butadiene-1 : 3, a  - methyl - b  - methoxyacrylonitrile, a  : b  - dimethoxy - a  - methylpropionitrile and a  : a  : b  - trimethoxy propionitrile. The a  : b -dichlor-a -methylpropionitrile is prepared by treating a -methylacrylonitrile with chlorine.  Specification 572,298 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the treatment with alcoholates of a  : b -dihalogenpropionitriles containing in the a -position another halogen atom or an alkyl group. Bromine compounds are mentioned. This subject-matter does not appear in the Specification as accepted.
Patent GB-368923-A (GB)
Title: Improvements in or relating to wireless signal receiving apparatus
IPC: H04H20/77
Filed: 1931-01-26
Abstract: 368,923. Wired wireless systems ; valve circuits. HOLMES, H. C., Kiln House Lane, and COMMUNITY RADIO (1928), Ltd., 10, West Crescent, both in St. Anne's-on-Sea. Jan. 26, 1931, No. 2579. [Class 40 (v).] A reception unit adapted to receive one or other of two programmes distributed over the same lines at high and low frequencies respectively comprises a single valve which can be switched to act either as a rectifier or as a low-frequency amplifier. In one embodiment, when the switch J, Fig. 1, is in the position J<2> the valve D is adapted to amplify a low-frequency programme coming from the line through condensers P, P<1>, through the L.F. transformer A, C, the valve being appropriately biased from a tapping F on the grid battery G. When the switch J is in position J<1>, a tuned circuit HK supplies the valve grid with a high-frequency programme, the valve being biased for anode-bend detection from the tapping L. A high resistance E is placed in the lead to the tapping F so that the portion of the grid battery between tappings F and L is not short-circuited when the switch J is in position J<1>. A reaction coil M may be provided, and when a high-frequency programme is being received the connection of coil K across the secondary winding C of the L.F. transformer is said to form a filter to stop low-frequency interference. In a second modification, Fig. 2 (not shown), the grid battery is replaced by a resistance between the valve cathode and H.T. negative. In this case the resistance E may be omitted if the resistance of the portion of the biasing resistance between tappings L and F is smaller than the resistance of transformer secondary C. In another modification, Fig. 3, the inductance K and transformer primary A are connected in series and placed across the line, the tuning condenser H being shunted across the primary A which is made of such an impedance as to affect the tuning only to a small extent. The inductance K functions as a high-frequency choke to prevent leakage of high-frequency currents through the primary A. In a fourth embodiment, Fig. 4, a tuned high-frequency transformer R, Q and the L.F. transformer A, C are shunted across the line and a double-pole switch J selects one or other of the secondaries and during the change-over switches off the filament current. Specification 332,771, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-1527394-A (GB)
Title: Apparatus for encoding images
IPC: H04N1/405
Filed: 1976-01-23
Abstract: 1527394 Facsimile systems; data compression INTERNATIONAL BUSINESS MACHINES CORP 23 Jan 1976 [27 Jan 1975] 2614/76 Heading H4P Grey levels of elements of a raster scanned picture are represented by different matrix patterns of bits and adjacent patterns are run-length encoded. Each picture element may thus appear as a matrix of dots the number of which determines the grey level of the reproduced picture. The patterns may be such that they can be efficiently run length encoded. For text images a logarithmic code is preferable but for drawings, charts, &c. whose run lengths do not include any distinct maxima a linear code is advantageous. After scanning at 20 individual analogue grey values are measured by unit 21 and assigned a digital value at 22 for encoding at 23 as a matrix pattern of bits. Two possible series of matrix patterns are illustrated in Figs. 1 and 2 (not shown), a completely white matrix not being included. Run length encoding is effected in unit 24 and the result stored in 25 for subsequent transmission display or printing. Control of the various units is performed by 26. Run lengths of low probability may be assigned a long code word and of high probability a short code word (Huffman distribution). Fig. 6 (not shown) gives an arrangement for generating patterns for the grey values given in Figs. 1 and 2. The 8 grey values require a triplet of bits which is fed in parallel through lines (1-3) and adder 4 to the first stage, of a triple N section shift register where N = number of areas. The shift register has cyclic feedback since the grey value of an area is required several times during the generation of patterns, hence as each matrix has four rows, the content of shift register has to be cycled four times via lines (8-10) through circuit (4). The triplets are clocked through the register and arrive at an adder 6 also receiving a signal whose value depends on which image element pair (see Fig. 5, not shown) is to be generated from the grey value of the image area. The sum is examined at (7) to determine whether the result is smaller than the number of possible amplitude intervals (in the embodiment = 9) and if so the corresponding image element pair is printed in black. If not it is printed in white. This information is stored and code optimized. In an alternative arrangement adder (6) and compare circuit (7) are replaced by an arrangement which for each predetermined grey value of an area performs a table look up operation containing all possible image element patterns for the various grey values.
Patent GB-1361943-A (GB)
Title: Shelf supporting foot
IPC: A47B91/00
Filed: 1972-01-19
Abstract: 1361943 Shelf supporting foot ELECTROLUX A B 19 Jan 1972 [20 Jan 1971] 2644/72 Headings A4U and A4B A foot for supporting shelves comprises a bottom plate with two spaced, upstanding walls 12, 13 between which is received the web 20 of a T-section upright 15, the walls 12, 13 being formed with aligned holes 14 to receive a bolt (16), Fig. 3 (not shown), which extends through the web 20, and the holes 14 being surrounded by depressions 18, 19 which project inwardly towards the opposite wall 12 or 13. In use the flanged ends 23a, 24a, of the shelves are supported on the inwardly projecting depressions 18, 19.
Patent GB-763715-A (GB)
Title: Improvements in juice extracting machines
IPC: A47J19/02
Filed: 1955-01-31
Abstract: 763,715. Grating and juice extracting. BILLARD, A. F. Jan. 31, 1955 [April 2, 1954], No. 2822/55. Class 28(2) Vegetable, fruit &c. placed in a shoot 35 are grated by a rotated cylindrical grating tool 26 having rings of teeth 30, the shoot bottom covering the full height of the teeth 30. The juice passes through a centrifugal perforated receptacle 21 to an exit spout 20. The bottom opening of the shoot is provided with teeth 37 to mate with the teeth 30 and one side of it has a deflecting extension 38 across which the teeth 37 extend. The shoot 35 is integral with a cover 32 hinged at 33 and latched at 34. The motor 14 is contained in a lower compartment 11.
Patent GB-194496-A (GB)
Title: Improved box for holding and displaying small articles
IPC: B65D5/50
Filed: 1922-01-31
Abstract: 194,496. Ford, V. C., and Clelend, Ltd., W. W. Jan. 31,1922. Packing bottles &c.-Small articles, such as bottles containing scent, &c., are supported within a box in stampedout apertures 3 in a cardboard, metal, &c. strip. The apertures are so proportioned that the articles 5 cannot assume a horizontal position and are held at an angle to the bottom of the box. The strip has a turned-down flange 7 which engage the sides of the box.
Patent GB-110280-A (GB)
Title: Fuel Pumping Means.
Inventor: TWOMBLY WILLARD IRVING
IPC: F02M59/10
Filed: 1917-02-27
Abstract: 110,280. Twombly, W. I. Feb. 27, 1917. Auxiliary actuating-gear; actuating by pulsating fluid pressure; actuating by weights; indicators.- A pump for supplying fuel to the engine of a motor-vehicle &c. comprises a compound piston 14, 15 working in cylinders 12, 13, the narrow portion 15 of the piston acting as a pump piston to draw liquid into the cylinder 12 through the valve 17 and force it through the valve 22. The chamber above the wide portion 14 of the piston is connected by a pipe 28 to a. source of suction, which raises the piston until a valve 29 in the part 14 contacts with the top of the cylinder and is opened, thereby connecting the atmospheric chamber 24 to the chamber 26 and destroying the vacuum. The piston then descends by gravity and expels the liquid which has been drawn into the chamber 12. A rod 38' connected to the piston indicates the action of the pump and may be used for operating the pump by hand. In a modification, the pump is horizontal and the delivery stroke is effected by a spring. In one application, the pump is inserted between the fuel tank and the carburettor of an engine, the pipe 28 being connected to the manifold.
Patent GB-652417-A (GB)
Title: A process for refining ethanol
IPC: C07C31/08
Filed: 1948-01-30
Abstract: Ethanol obtained by the direct hydration of ethylene and having a pH below 6 or above 9 is purified and improved as to odour by adjusting the pH of the crude product, so that in condensed form it has a pH of between 6 and 9, preferably between 6.5 and 7.5, and subjecting, if necessary after condensation, the adjusted product to fractional distillation.  Preferably, the distillate is hydrogenated as with a nickel catalyst and may then be again fractionally distilled.  The pH is adjusted by adding acid or alkali or a phosphate buffer solution, preferably by spraying it into the gaseous effluent from the initial manufacturing process to prevent its corroding metal surfaces of the plant.  The catalyst (nickel on calcined diatomaceous earth or majolica) in the subsequent hydrogenation may be of high nickel content, e.g. p  60 per cent, or preferably of low content, e.g. 5 to 15 per cent.
Patent GB-323942-A (GB)
Title: Improvements in or relating to grinding or abrading wheels
IPC: B24D7/06
Filed: 1929-01-29
Abstract: 323,942. Snow, R. G. Jan. 29, 1929. Wheels.-In a segmental grinding-wheel having the abrasive sectors projecting axially on both sides of the wheel frame, so that both end faces of the sectors are usuable for grinding parallel surfaces, axial movement of the sectors is prevented by a circumferential tongue and groove engagement between the sectors and a clamping-piece, cushioning pads being used between engaging parts. The wheel frame consists of a hub 6 to which is secured a ring portion 7 having secured thereto an outer hoop 9, and the abrasive sectors 18 are held in pockets 11 in the ring 7 by clamping-bolts 12 having long heads 16 and adjustable by nuts 14. Grooves are formed in the sectors 18 and heads 16 to receive pads 19 of rubber, leather, &c., which may have a central wire 20 and form the tongues. The hoop 9 may be of circular section to engage a groove in the sectors and a cushioning strip may be inserted between the hoop and each sector; the tongues, which may be of semi-circular section, may be secured to the heads 16. The heads 16 are recessed or otherwise formed at their ends to engage shaped walls 21 of the pockets to prevent rotation of the bolts.
Patent GB-946203-A (GB)
Title: Improvements in and relating to apparatus for calibrating and adjusting rotating disc electricity meters
Inventor: PEDLEY DAVID
IPC: G01R35/04
Filed: 1959-01-28
Abstract: 946,203. Testing electricity meters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 19,1960 [Jan. 28, 1959], No. 3102/59. Heading G1U. An apparatus for calibrating and adjusting rotating disc electricity meters comprises a member 1 rotating at a reference speed determined by the rotation of a reference meter under a given load, the member being arranged to direct or obscure repeatedly at regular intervals during each revolution a ray L from a light source 6 to a light sensitive device 8; an electronic counting circuit 16 connected to count the signals from the said device; a second member 2 rotating at a speed determined by the rotation of a meter under test the load of which is fixedly related to the first load, the second member being arranged to direct or obscure at one position 5 of the second member in each of its revolutions a ray R1 from a light source 11 to a second light sensitive device 14, and a gating circuit 9 controlled by the signals from the second device and controlling the counting circuit to start and to stop by successive signals the operation of the counting circuit. An electric motor RM is connected so as to adjust by its rotation an adjustable element in the meter under test, and a switching arrangement CU connects the motor to a supply source in accordance with signals derived from the result of the counting operation, so that the motor is energized to adjust the meter so as to reduce its error to a predetermined tolerance in accordance with the error detected by the counting circuit. The light sensitive devices 8 and 14 may be photo-cells or phototransistors and the outputs from these are passed through amplifier and wave shaper stages 10 or 15 before being applied to the gate 9. The disc 1 is provided with peripheral slits 3, of which there may be for example 200, so that errors in the speed of rotation of the meter under test exceeding ¢% may be detected in one revolution. The accuracy of the system may be improved by including a circuit RS between the stage 15 and the gate 9 which arranges that the gate 9 may be held open for more than one revolution of the disc 2. In the counter 16 digital display tubes may be used, and the cathode resistors of these tubes are connected to the contacts of a switch GS. When the gate 9 closes, the control unit CU is energized so as to set the motor RM into motion, thus driving the wiper WP of the switch GS through the clutch CL and also the adjustments of the meters under test through the clutch selector unit. The switch GS has potentials at its contacts set up according to the digital count set up by the meter under test, and when these potentials have been fully interpreted by the control unit CU and found to agree with the required count the motor RM is stopped and the clutches disengaged. The wiper WP is then returned to its rest position. The rate of rotation of the reference disc 1 may be checked against a standard clock SC by operating the switch SO.
Patent GB-193033-A (GB)
Title: Improvements in and connected with oil and fuel pumps for internal combustion engines and driving mechanism therefor
IPC: F02B1/00
Filed: 1923-02-02
Abstract: 193,033. Daimler-Motoren-Ges. Feb. 10, 1922, [Convention date]. Cylinders receiving liquid fuel.-In an internal - combustion engine installation comprising a fuel pump and lubricating-oil pump driven by a common driving means, the shaft a of the oil pump (not shown) drives the shaft b of the fuel pump, preferably of the gear wheel type, through a freewheel clutch d so that the fuel pump can be driven alone by a hand crank e at starting to feed fuel to the engine. The fuel pump may be mounted in the casing of the oil pump.
Patent GB-1490772-A (GB)
Title: Process for welding low-alloy steels containing niobium
IPC: C22C38/00
Filed: 1975-01-24
Abstract: 1490772 Welding low alloy steel AMAX Inc 24 Jan 1975 [3 April 1974] 3242/75 Heading C7A [Also in Division B3] In gas-shielded, submerged, or flux-cored electrode arc welding of low alloy steel of more than 0À02% Nb, e.g. in longitudinal or helical pipe seaming, Ti and/or V is added to the melt such that in the resultant weld metal alloy 2À5 (%Ti) + 0À4 (%V) = 0À5 to 2À0 (%Nb). Ti or V may be placed in a weld preparation groove as wire or powder in pure or alloyed form, may be mixed with flux, e.g. in submerged arc welding, or, in submerged arc welding, may be included in a consumable electrode. Submerged arc welding examples include single electrode two-side welding and the use of tandem electrodes. Typical steels to be welded include 0À08% C, 1À45% Mn, 0À2% Mo and 0À05% Nb, and 0À05% C, 1À8% Mn, 0À3% Mo and 0À06% Nb. Disclosed weld metal alloy constitutent percentage ranges are in addition to the Ti and V in the above relationship with Nb, N 0À01-0À12 Mn 0À5-3À0 Mo 0À1-1À5 C 0À02-0À15 Ni up to 3À0 Cu up to 0À6 Si up to 0À6 Cr up to 1À0 P up to 0À03 S up to 0À03 Fe, with usual residuals and impurities, Bal. Example recoveries of Ti and V are 20 and 95% respectively. Typical consumable electrode constituent percentage ranges are Ti, V respectively 0À13-0À51 and 0À15-0À64 Mn 1À0-3À5 Mo 0À2-2À0 C 0À02-0À15 Ni up to 5À0 Cu up to 0À4 Si up to 0À4 Cr up to 0À4 P less than 0À01 S less than 0À01 Fe Bal In submerged arc welding of <SP>11</SP>/ 16  inch thick plates using a consumable electrode of 1/8 inch diameter with small diameter wires of pure Ti or V are laid in the joint to produce weld metals within the ranges of 0À005-0À020 Ti and 0À01-0À10 V, and with 0À046% Nb.
Patent GB-1156292-A (GB)
Title: Machine Tool with Automatic Tool Changer
Inventor: OLLEARO GEORGIO
IPC: B23B39/20
Filed: 1966-08-31
Abstract: 1,156,292. Tool changes in machine tools. ING. C. OLIVETTI & C. S.p.A. 31 Aug., 1966 [2 Sept., 1965], No. 3380/69. Divided out of 1,156,291. Heading B3B. The subject matter is as described in the parent Specification but the claims are directed to a machine tool having a tool magazine with a plurality of tool storing cells, drive means for moving the magazine so as to locate a cell as the working station, means for connecting the tool in the cell to the tool spindle, and an adjustable tool spindle speed changing device, comprising a plurality of variable setting elements, one for each cell, the elements having a stepped edge which co-operates with a slide having a second stepped edge, so that the slide adjusts the speed changing device when it is advanced.
Patent GB-433127-A (GB)
Title: Improvements in or relating to the firing of baths for melting metals or heating liquids
IPC: F27D1/12
Filed: 1934-02-02
Abstract: 433,127. Pot furnaces for melting metals &c. SOUTH METROPOLITAN GAS CO., CHANDLER, D., and SKINNER, A. J., 709, Old Kent Road, London. Feb. 2, 1934, No. 3556. [Class 51 (ii)] In a gas-fired furnace for melting metals or heating liquids of the kind in which flames and hot gases from burners 10, after passing upwardly around the pot 1, escape through a chamber 6 to down flues 7 having outlets 8 at their lower ends, the inner face of the refractory wall 3 is lined with cast-iron plates 2 which are spaced from the wall by ribs 4 and have vertical ribs on their inner faces to divide the heating space 1<1> into separate passages. Below the pot 1 are provided further linerplates 13 having upstanding ribs 13<1> which serve to support the pot and to provide preheating passages for combustion air passing from the inlet flues 11 to the lower end of the heating space 1<1>. The burners 10 are of the luminous flame type, gas only being delivered through the supply pipes 9.
Patent GB-265965-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/22
Filed: 1927-02-08
Abstract: 265,965. Siemens - Schuckertwerke Ges. Feb. 9, 1926, [Convention date]. Vacuum cleaners.-The motor 9 and fan 6 of an electric vacuum cleaner are carried in a liner 12 within the dust receptacle 3 and fitted bag 4. The commutator brushes 31 may be at about the level of the top of the liner. The filter 4 surrounds the liner and is supported and distanced therefrom by a wire grating 16 and a ring 30 let into the packing between the dust container and the top of the liner. The motor is supported from the base of the liner by screws 15 which also secure the wire grating. A cover 17 is secured to the liner by nuts 19 on screw bolts 18 carrying also nuts 20 to attach the handle bracket 21. Pivoted screws 23 connect the cover 17 to the dust receptacle; the motor and fan may thus be removed from the dust receptacle, allowing the filter to be removed and the receptacle emptied. By loosening the nuts 19, the motor and fan may be inspected, or the commutator brushes replaced.
Patent GB-1423374-A (GB)
Title: Method of and an apparatus for assessing the running behaviour of textile machines
IPC: D01H1/24
Filed: 1973-01-24
Abstract: 1423374 Monitoring textile machines ZELLWEGER USTER Ltd 24 Jan 1973 [24 Jan 1972] 3573/73 Heading D1F In a method of assessing the running behaviour of a textile machine comprising a plurality of spindles, an operational characteristic of the machine is counted at each spindle and a signal is generated in an indicater associated with a spindle when the number or duration of the characteristic at that spindle exceeds a predetermined value, counting being stepped when the total number or duration of the characteristic determined by a central calculating unit reaches a predetermined value. At each spindle of a ring spinning machine, yarn breakage causes monitor 20 to release a signal which is stored in unit 22 comprising bistable multivibrators. When the number of yarn breakages, or stored signals, exceeds a predetermined number, signal lamp 24 is lit and it is ensured that no further signals reach unit 22. The sum of all the yarn breakages is determined by central evaluating unit 27, and when the sum reaches a maximum value the unit transmits a signal stopping counting at the units 22. Alternatively, to monitor the duration of stoppages, unit 27 releases signals at regular intervals of time, and these are counted by the units 22 if the associated monitor 20 signals a yarn stoppage. The number of cuts performed by an electronic yarn cleaner may also be a characteristic which is counted.
Patent GB-1031023-A (GB)
Title: Fan drive for ventilation plant in air-raid shelters
IPC: F04D25/02
Filed: 1964-01-28
Abstract: 1,031,023. Centrifugal fans. LUWA A.G. Jan. 28, 1964 [Feb. 1, 1963], No. 3598/64. Heading F1C. In a fan in a ventilation plant for air-raid shelters, driven selectively by an electric motor or by hand, a transmission system between a hand crank and the fan shaft is multi-stage, has a belt and/or chain drive and is coupled with the fan shaft by a free-wheel arrangement. In the event of failure of the electrical supply to the motor 5 driving the fan 21, the fan is driven manually through a crank 26 and a three-stage transmission system comprising a first stage chain drive 27-29 and second and third stage belt drives 32-34 and 37, 38, 40 respectively, the part 40 being a free-wheel device which free-wheels on the fan and motor shaft 39 when the motor is driving the fan. Intermediate shafts 30, 35 are adjustably mounted in slots 31, 36 in the lateral walls of a casing 24. The motor 5 may be mounted laterally of the fan 21 and arranged to drive the latter through a belt and a free-wheel device which free-wheels when the fan is driven manually. A dtnamo 41 driven by the wheel 32 supplies an emergency lamp 42; the dynamo and lamp may be of the conventional bicycle type. The plant is mounted to a wall by a flange 23. In an alternative embodiment the transmission system comprises two stages, the first a chain drive and the second a belt drive. The transmission system may comprise belt drives only or chain drives only, or the first stage may comprise gear-wheels.