baber/WOPTO huggingface dataset:
Patent GB-148689-A (GB)
Title: Improvements relating to starters for internal combustion engines
IPC: F02N99/00
Filed: 1919-07-17
Abstract: 148,689. Dyer, C. M. July 17, 1919. Starting.-In an auxiliary carburettor for supplying a rich combustible mixture to the induction pipe for starting or for use in emergency, a cylindrical chamber 3, perforated at 12, and adapted to be screwed into the induction pipe 13, encloses a hollow stem 1, perforated at 2 and connected through a cock 16 with a liquid-fuel supply pipe 17. Mounted on the chamber 3 is a sleeve 9 rotatable by an arm 14, forked at 20 to embrace the arm 19 of the cock 16. To start the engine, the arm 14 is turned, simultaneously rotating the arm 19 to open to cock 16 and turning the sleeve to cause a hole 8 therein to register with a hole 6 in the chamber 3. The suction in the induction pipe 13 draws air through the holes 8, 6, and the air in passing the perforated top 2 of the stem 1 draws out fuel, the mixture passing through the holes 12 into the pipe 13. A roll of gauze 21 may be fitted in the perforated end of the chamber 3. When the engine has started, the arm 14 is turned back to its normal position. A further rotation in the same direction causes the hole 8 to register with a second hole 7 in the chamber 3, without opening the cock 16, in order that air may be drawn in without fuel for braking or for cooling the cylinders.
Patent GB-973877-A (GB)
Title: Electronic control apparatus
IPC: G05B11/36
Filed: 1962-05-09
Abstract: 973, 877. Automatic control. FOXBORO CO. May 9, 1962 [May 18, 1961], No. 17900/62. Heading G3R. In an electronic system for controlling a process in which an error signal is amplified and negative feedback applied through a capacitor to introduce an integral component of controls a circuit is connected between the output of the amplifier and the condenser to limit the condenser charge when the control signal is large. In Fig. 1 a direct voltage developed across a resistor 14 corresponding to the magnitude of a variable to be controlled, e.g. rate of flow or temperature, is compared with a voltage from a potentiometer 16 corresponding to a desired value of the variable, and any difference, representing the error in magnitude and sense, is applied across each of the two upper arms of an A.C. bridge 24 in opposition to a feedback voltage from a potentiometer 26. The bridge arms contain semi-conductor diodes 42, 44 of high resistance which are oppositely poled so that their capacities are varied in opposite senses by changes in the applied control voltage. Bridge 24 is arranged in a positive feedback path 52 associated with a transistor amplifier 60 to form an oscillator the output of which increases or decreases, according to the sense of variation of the applied control voltage, to operate a valve controller 68 in the appropriate sense to correct the variable. Negative feedback is applied from the output of the oscillator through rectifiers 72 and R C networks including condensers 80 and 90 which respectively introduce differential and integral components of control. To avoid difficulties due to excessive charging of condenser 90 during start up of the process, the high oscillator output under these conditions is effective to overcome Zener diodes 100 and apply negative feedback through a transistor ampli fier 104 to potentiometer 26 so that both the oscillator output and the charge on condenser 90 are reduced. An arrangement is also described in which two oscillators are separately controlled by independently measured variables of the process, that oscillator having the greater output being selected to control the process by virtue of the conduction of an associated rectifier. Non conduction of the rectifier associated with the other oscillator is then effective to control the feedback circuit of that oscillator so that its output is increased to be near that of the controlling oscillator in readiness for changeover without difficulties due to a greatly differing charge on the feedback condenser. Specifications 857,984 and 887,004 are referred to.
Patent GB-1271093-A (GB)
Title: Stethoscope chestpiece
IPC: A61B7/02
Filed: 1969-04-08
Abstract: 1,271,093. Stethoscope chestpiece. MINNESOTA MINING & MFG. CO. 8 April, 1969 [9 April, 1968], No. 17972/69. Heading ASR. A diaphragm 2 for use with a stethoscope chestpiece 1 comprises a flat flexible body 3 with a lip 4 adapted to engage an annular member 8 of a chestpiece and hold the diaphragm thereto. The lip 4 may be of greater thickness than the body 3, which may be circular. The diaphragm may have a bevelled surface 14 adjacent the lip, which surface cooperates with a corresponding surface 10 on the chestpiece to centralise the diaphragm on the chestpiece. Both diaphragm and chestpiece may be of a plastics material. An adhesive material may be used to secure the diaphragm in position on a patient.
Patent GB-682889-A (GB)
Title: Improvements in or relating to carriers or supports for buckets and the like domestic equipment
IPC: A47J47/18
Filed: 1950-07-19
Abstract: 682,889. Wheeled carriers. HALL, L. W. July 18, 1951 [July 19, 1950], No. 17988/50. Class 108 (i). A wheeled carrier for a bucket comprises a peripheral rim 10 formed with recesses 17 to house castor supports 18 interconnected by radial arms 11 having downwardly bent ends 13 secured to the rim and lateral extensions 14 forming supports for castor frames 15.
Patent GB-957420-A (GB)
Title: Apparatus for the transmission to a distance of the indications of a liquid meter
IPC: G01F15/06
Filed: 1960-05-20
Abstract: 957,420. Electric selective signalling systems. CONTIGEA S.A. May 20,1960 [May 20, 1959], No. 17988/60. Heading G4H. In a fluid-flow measuring system the shaft of a fluid-flow meter is coupled to an electromagnetic pulse generator 18, 19, Fig. 3, via a worm .gear and a lost motion connection comprising a pin 26 on the meter shaft and a projection 23 on the rotor 18, the arrangement being such that as the meter shaft rotates the pin 26 pushes the rotor 18 round half a revolution until it reaches the position where a spring is fully extended and then the spring jerks the rotor suddenly through the next half revolution inducing a pulse in an output coil, which pulse is transmitted to a remote counter.
Patent GB-859444-A (GB)
Title: Monoazo-dyestuffs of the oxdiazole series insoluble in water and process for their manufacture
IPC: C09B29/20
Filed: 1957-06-06
Abstract: 3-(31-amino-41-methoxyphenyl)-4-methyl-1, 2, 5-oxdiazole may be made by converting the monoxime obtained on treating diazotised 4-methoxyaniline with isonitroacetone into the dioxime of 4-1methoxyphenyl-methyl di-ketone ring closing to 3-(41-methoxyphenyl)4-methyl-1, 2, 5-oxdiazole, nitrating, and reducing to the desired amine.ALSO:The invention comprises water-insoluble dyes of formula:  <FORM:0859444/IV (c)/1> where R is an aryl radical and X is H or Hlg.  They are prepared by coupling appropriate diazonium compounds in substance or on the fibre or another substratum with an arylamide of 2- naphthol -3- carboxylic acid or a 6- halogen derivative thereof.  The dyes are used to colour vegetable fibres, including regenerated cellulose, and synthetic fibres such as acetyl cellulose and polyamides.  They may also be used for colouring plastic masses and for preparing colour lakes. Examples are provided of the preparation of the dyes and their use in dyeing processes in which various shades of red are obtained.  In the reactants used X is H or Br and R is a naphthalene residue or a benzene residue which may contain methyl, methoxy and chlorine groups as substituents.
Patent GB-152446-A (GB)
Title: Improvements in or relating to the manufacture of cartons and similar receptacles orcontainers
IPC: B65D3/18
Filed: 1919-07-21
Abstract: 152,446. Crossby, W. E. J., and Mellor, J. July 21, 1919. Covers; powder-distributors.-A carton or similar container is formed with a reduced portion c so arranged that, when the upper end of the carton has been removed by cutting through the body portion just below the end disk b<1>, the cut-off portion, on inversion, serves as a cap lid engaging the part c. The disk b<1> may be formed with temporarily covered perforations enabling the cover to be used as a sprinkler.
Patent GB-644954-A (GB)
Title: Process for producing precious metals
IPC: C22B11/08
Filed: 1948-07-06
Abstract: In the production of precious metals by the cyanide-leaching process, raw materials containing the metals, preferably in a finely-crushed condition, are exposed to leaching by a solution of cyanide with the addition of oxygen during which direct current is led through the material to facilitate dissolving of the precious metals in the solution.  The voltage and amperage are preferably maintained as constant as possible and a preferred voltage for the extraction of gold or silver is 6-8 volts.  The raw material may be placed in a wooden vessel on top of sheets of lead, which are connected to the negative pole of an electric circuit, and beneath sheets of iron which are connected to the positive pole. The leaching liquid may be one containing about 11 k'grams of cyanide, 150 grams of caustic soda and about 330 grams of slaked limestone per cubic metre.
Patent GB-422050-A (GB)
Title: Improvements in or relating to photometric apparatus
IPC: G01J1/42
Filed: 1933-06-27
Abstract: 422,050. Photometric apparatus. DIXON, H. O., Lostock Grange, Westhoughton, Bolton. June 27, 1933, No. 18228. [Class 97 (i)] Apparatus for measuring the intensity of light from miners' lamps &c., by means of a lightsensitive cell and an indicating instrument in circuit with it, comprises a cabinet containing a cell 15 adjustable rectilinearly and angularly, and a stand 16 for the lamp. The cell 15 is mounted on an insulating block 14 carried by slide 12 adjustable on a graduated arcuate bracket 11 carried by a slide 9 vertically adjustable on a standard 8. The stand 16 may comprise a base 17 carrying pillars 18 having reduced ends 18<a> to form bearing surfaces for a lamp-supporting plate 19. The plate 19 may have key-hole slots 19<a> permitting the plate to be carried by the pillars 18 or to be lowered on to the base 17. The stand may be rotatable on a pivot 20 and have a scale 21 projecting through a slot in a wall 6 of the cabinet, a reading pointer 22 being fixed on the wall. The stand is so placed in the cabinet that the light source lies in a vertical line containing the centre of the arcuate bracket 11 ; the cabinet is light-excluding and has non-reflecting interior surfaces.
Patent GB-1061602-A (GB)
Title: A receiver of modulated alternating input signals
IPC: H04L1/20
Filed: 1965-04-30
Abstract: 1,061,602. Data transmission. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 30, 1965 [May 5, 1964], No. 18241/65. Heading H4P. The outputs of the various circuits in a demodulator of, for example, a frequency shift signal subject to frequency or amplitude wander are checked to provide error signals when prescribed conditions are met. The received signal A fed to the demodulator, Fig. 4 (not shown), is transformed in a pulse forming circuit, waveform D. This is fed to a clock retrieval circuit whose output E coacts with D to give RZ signals F. Pulses E pass to a clock sync. circuit to appear as C, C and F being used to form the output demodulated data G. To provide an indication if the frequency of the received signals increases excessively, the pulses C, D, E and F are passed to individual circuits each comprising an AND gate to which the pulses are fed both direct and via an inverter series connected to a flip-flop. The unstable period of the flip-flop determines the maximum permitted frequency. As a further check, two AND gates are fed direct by E and F, respectively and, via a delay and a flip-flop, by C and D. The gate pulses if C and D, or E and F, are out of phase. In another circuit, waveform C is filtered, giving B. This is rectified and filtered, and fed to a threshold unit which indicates when the D.C. level is too high. The demodulated signals pass to a further checking circuit, in which they are remodulated and compared in phase and amplitude with the received modulated signals. Outputs are produced if the amplitudes differ excessively or if a noise pulse is present in the received signal.
Patent GB-243414-A (GB)
Title: Improvements in or relating to methods of and apparatus for the coking of coal
IPC: C10B21/20
Filed: 1924-07-30
Abstract: 243,414. Rushen, P. C., (Koppers Co.). July 30, 1924. C o k e ovens. - A method of coking coal comprises heating externally a charge having the lower part thinner than the upper part, and, when the thinner part is practically completely coked, introducing steam into this part. The coking operation in the lower part of the retort or oven is completed before that in the upper part and the steaming takes place in the early part of the coking process. The heating walls 11 of the coking chambers 12 are thicker towards the bottom and the tapered chambers are provided with heating flues 17 enlarged towards the bottom. Supporting walls 13 and 22 include regenerators 18 leading by pairs of ducts 23 to heating flues 17. A vertical partition 19 separates the regenerators 18 into two sections and each regenerator may be divided by a partition 109 into two compartments. The regenerators are grouped into pairs such as R, L, the gas flow in each pair being in the same direction, cross-over flues 26 communicating with adjacent heating flues 17 and the corresponding regenerators. Coke oven gas is supplied through channels 29 and ducts 31 to the heating flues 17. Steam is introduced and heated in a channel 35 leading by channels 34 and ports 37 to the bottom of the coking chambers 12. The distillates are withdrawn through outlets 16. Specification 171,117 is referred to.
Patent GB-1100847-A (GB)
Title: Process for the manufacture of a calcium boride
IPC: C01B35/04
Filed: 1965-04-30
Abstract: Ca boride is produced by fusing an ore containing B2O3 and CaO with carbon in an arc furnace.  Boric acid may also be present.  The ore may be colemanite (Ca2B6O11.5H2O) or pendermite.  The preferred proportions are 35-45% ore, 32-42% H3BO3, and 18-25% C; or 71-80% ore and 20-29% C.  Example 1 is said to produce CaB6.2 containing 3.6% C in the lattice, and Example 2, a mixture of 2/3 CaB6 and 1/3 B4C.
Patent GB-596375-A (GB)
Title: Improvements in electrolytic deposition of tin
IPC: C25C1/14
Filed: 1944-09-25
Abstract: Alloys for use as anodes in the electrodeposition of tin consist of alloys of tin with aluminium, gallium or manganese, the proportion of alloying metal to tin being 0.1-2.0 per cent, preferably 0.1-1.0 per cent by weight.  Tin-aluminium anodes may be prepared by first making up a master alloy of 90 per cent tin and 10 per cent aluminium and adding a calculated amount of this to a pure tin melt before casting. Similarly a master alloy containing 8 per cent of manganese may be used in the preparation of tin-manganese anodes.
Patent GB-1433832-A (GB)
Title: Ultrasonic inspection
IPC: G01N29/30
Filed: 1973-04-16
Abstract: 1433832 Ultrasonic inspection KRAUTKRAMER GmbH 16 April 1973 [14 April 1972] 18314/73 Heading H4D Testing a thick-walled workpiece is accomplished by dividing the piece into a number of zones parallel to the two surfaces, having at least two transmitters on one surface and at least one receiver on the same surface, whereby energy from each transmitter is reflected from a flow at its respective test zone centre, is reflected along the line joining all the test zone centres and which is inclined to the surfaces and is reflected from the other surface to the receiver. Thus energy from flows at the test zone centres is reflected from the same point on the rear surface, thereby equalizing losses for all echoes. With ganged switch planes 27, 27b in the position shown, transmitter 21 feeds pulses to transducer 5a which transmits ultrasonic pulses via point 8 on the opposite face of the workpiece to receiving transducer 5. The received pulse is fed via amplifier 23 to control element 20. Amplifier 23 contains a comparator which compares the pulse amplitude with a predetermined value. Control element 20 may be a photo-resistor controlled by lamps and adjusts the pulse output from transducer 5. As switches 27, 27b rotate, transmitting transducers 2, 3, 4 are connected in turn to the transmitter 21 and the receiving transducer 5 is connected via amplifiers 24, 24a, 24b to indicator 22. If any defects occur in the relevant inspection zones (1, 1a, 1b, Fig. 2, not shown) the ultrasonic beam is reflected from the crack, via the opposite workpiece face 18 to the receiving transducer. Since the centres of the inspections zones are arranged on a straight line passing through the common reflection point 8 the displayed echoes from any zone will have the same amplitude due to control element 20. In a modification, each transducer also transmits ultrasonic pulses perpendicularly into the workpiece. After reflection at the opposite face 18 the received pulse is compared to a predetermined standard and the transmitted pulse amplitude from each transducer is varied to take account of the coupling between workpiece and transducer (Fig. 5, not shown).
Patent GB-1185256-A (GB)
Title: Improvements in or relating to Automatic Tearing Devices for Plastics Film
Inventor: ROSSI GIUSEPPE
IPC: B32B37/22
Filed: 1968-04-18
Abstract: 1,185,256. Severing by tearing. G. ROSSI. 18 April, 1968, No. 18339/68. Heading B4B. An automatic tearing device for plastics film comprises a pair of feed rollers 1, 2 for feeding coupled cardboard sheets F in marginal superimposed relationship and connected to each other by a plastics film v, a pair of incision rollers 7, 8 the upper roller of which has spikes 9 and the lower roller of which has a rubber covering so as to incise the edge of the film v adjacent the superimposed margin N of the sheets F, and a pair of tearing rollers 4, 5 for dragging the plasticized coupled sheets with a greater translational speed than that of the rollers 1, 2 so as to cause a progressive divergent tearing of the film adjacent the margin N. The feed rollers and the incision rollers preferably form part of a continuous coupling machine. Preferably, one or both rollers 4, 5 are inclined to the axes of the other rollers. The roller 7 is driven from a shaft 35, Fig. 4, through two pairs of helical gear-wheels 50, 70 and 40, 90, the gear-wheel 50 being mounted on a slide 42 which is translatable, by means of a threaded bolt 19 and a hand wheel 3, so as to synchronize the roller 7 with the drive of the coupling machine without stopping the machine. The shaft 89 of the roller 7 is mounted in a slide 30 which is shiftable vertically, by means of a threaded bolt 47 and a hand wheel 14, so as to adjust the distance between the rollers 7 and 8. An end 11 of the roller 4 and that of roller 5 are mounted to revolve in a slide 56 which is shiftable vertically, by means of a threaded bolt and a hand wheel 33, so as to alter the angle of the axes of the rollers 4, 5 with respect to the other roller axes. The rollers 4, 5 are pressed against each other by means of two hand wheels 55 pressing bushes 60 upwardly by helical return springs 46. A slide grate (23), Fig. 6 (not shown), downstream of the rollers 7, 8 supports two coupled sheets 7 just before the tearing operation. The roller 4 is preferably formed by sections (4a), (4c) and (4e), Fig. 6.
Patent GB-300106-A (GB)
Title: Improvements in tipping devices for excavation wagons
IPC: B65G67/00
Filed: 1928-06-25
Abstract: 300,106. Mines Domaniales de Potasse d'Alsace. May 9, 1928, [Convention date]. Addition to 286,595. Tipping -apparatus. - The apparatus described in the parent Specification is modified to avoid cutting the permanent way. The base A with brackets a, b forming tipping guides and centres is passed beneath the rails of the permanent way and secured by spikes. A frame B carrying rollers e and ramps d is placed between the rails, and the tipping cradle C rests upon the rollers e. The wagon enters the tipping cradle over the ramps and the wheels engage angle irons h. The cradle is pushed towards the left on the rollers e and overturns, and the frame B is then lifted off the track to permit use of the permanent way.
Patent GB-910671-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K7/20
Filed: 1961-05-23
Abstract: 910,671. Valves. TOMLINSON INDUSTRIES Inc. May 23, 1961, [July 27, 1960], No. 18507/61. Class 135. The body 12, Fig. 1, of a valve has an inlet 28, an outlet 18 and a stepped bore 20, 22, the latter being closed by a threaded bonnet 16; the bore 20, 22 houses an elastomeric cup-like member 34 comprising a body portion 36 held between a bonnet rib 30 and the body 12, and a nipple portion 38 co-operating with a seat 26, the portions 36, 38 being connected by a radial wall and the latter being twice the length of the former. The button 46 of an actuating plunger 44 is snap-fitted into a recess 48 in the bottom wall of the nipple portion 38, the plunger 44 being spring-loaded. A handle 56 for operating the plunger 44 has a pair of parallel and resilient flanges 58, 60, Fig. 4, the space between which houses the outer end of the plunger 44, each flange edge having parallel sides 61, 64, Fig. 1, that join the bottom surface through cam surfaces 68, 70 of different contour. The outer end of the plunger 44 has a pair of opposed blind bores 72, Fig. 4, the bottom wall of each bore embodying a conical protuberance, whilst sloping guide surfaces 84 enable lugs 80 on the flanges 58, 60 to be snapped into the bores 72, the conical protuberances prevent collapse of the flanges 58, 60. Upon moving the handle 56 in a counterclockwise direction the cam surface 70 coacts with the bonnet 16 to axially lift the nipple portion 38 from its seat 26 by telescoping it within the body portion 36 due to flexure of the radial connecting wall; when the handle is released the cam surface 70 is such that the valve automatically recloses. Clockwise motion of the handle 56 will also open the valve, the cam surface 68 being so abrupt that the side 64 is caused to engage the upper face of the bonnet whereupon the valve will remain open until closed by a reverse movement of the handle 56. Specification 901,759 is referred to.
Patent GB-926736-A (GB)
Title: Process and apparatus for impregnating fibrous materials
Inventor: ROBERTS DOUGLAS
IPC: D06B3/10
Filed: 1959-06-01
Abstract: <FORM:0926736/IV(a)/1> A process for manufacturing impregnated woven or unwoven fibrous sheet material comprises the steps of applying an impregnant in the form of a foam on to a perforated support positioned in contact with or close to the upper surface of the fibrous sheet material and applying suction to the opposite surface of the material to sink the impregnant into the material through the perforated support.  The said perforated support may form a template or stencil whereby impregnation is effected according to a pattern. As shown, an endless perforated conveyer belt 1, e.g. of wire mesh, passes over guide rollers 2 and is driven by motor 3 and driving belt 4.  Rollers 2 are carried on supports 6 and 7 mounted on pillars 8. Web W of fibrous sheet material to be impregnated is fed on to belt 1 from a source not shown and travels past doctor blade 9 and over suction boxes 10.  Upper endless perforated conveyer 12, which may be a wire mesh or a stencil, is carried on rollers 13 mounted on supports 14 and 15 which are interconnected by struts 16 and capable of being raised and lowered by sliding on pillars 8.  The foamed impregnant is deposited on upper conveyer 12 through nozzles 24 extending across the width of the conveyer and the thickness of the deposited foam layer is controlled by doctor blade 25.  Conveyer 12 is driven by motor 26 through belt 27 and is arranged to travel at the same speed as conveyer 1.  In operation the upper conveyer assembly is lowered so that conveyer 12 just contacts the upper surface of web W; then, as web W on conveyer 1, together with conveyer 12 carrying the foamed impregnant, pass over suction boxes 10, the suction causes the impregnant to be drawn into the fibrous sheet material.  Subsequently conveyers 1 and 12 pass through separate cleaning baths.  Specification 856,389 is referred to.