baber/WOPTO huggingface dataset:
Patent GB-1514742-A (GB)
Title: Electronic switching devices
IPC: H05K5/03
Filed: 1975-05-21
Abstract: 1514742 Semi-conductor devices ROBERT BOSCH GmbH 21 May 1975 [30 Nov 1974] 21698/75 Heading H1K An electronic switching device for I.C. engines comprises a housing 1 which serves as a heat sink for the device, and a power semi-conductor component in good thermal but electrically insulating contact with the outside of the housing 1 and including a component-housing 2 with a part for attaching it to the housing 1, wherein a protective layer 5 extends over the component-housing 2, the part for attaching it to the housing 1, and over the surface of the housing 1 around the power component. The protective layer may be a lacquer and may be covered by a plastics hood (not shown) which has a shoulder and an elastic sealing lip and is attached to the housing 1 by a variety of alternative means such as nuts and bolts, a bayonet joint, spring hooks, spring clips, &c. The power component may be a transistor.
Patent GB-1140442-A (GB)
Title: An improved device for use in applying sprayable material to walls, ceilings and othersurfaces
Inventor: CARO ERIC STUART
IPC: E04F21/12
Filed: 1966-05-16
Abstract: 1,140,442. Spray-producers. ENGINEERING ALLIANCE Ltd. 16 Feb., 1967 [16 May, 1966], No. 21710/66. Heading B2F. In a spray pistol for delivering plaster or like cementious materials or sand, marble, metallic particles or like granular materials, the spray material is introduced through a hopper connected to the top of a barrel 10, the outlet for the spray material being controlled by a spring-biased needle-like valve comprising an air jet tube 41 with a conical head 42 seating in a conical recess in a nozzle head 13, the air jet tube 41 being axially displaceable by a trigger (46), Figs. 1, 3 (not shown), connected thereto. The air jet tube is slidably mounted within a guide tube 26 slidably mounted within the barrel 10 and projects from the rearward end thereof. A plug (36), Figs. 1-3 (not shown), is mounted in the rearward end of the guide tube 26, the plug being screw-threaded to receive a union nut (37), Fig. 1 (not shown), incorporating a nipple (38) for connection to a compressed air hose. In operation, air flow is controlled at source, and the flow of spray material is controlled by the trigger (46); the plug (34) may act as a stop for the trigger, and the air jet tube 41 may be locked in place by a thumb screw (49), Figs. 1, 2 (not shown). The air may flow with the air jet tube in a position to close the spray material outlet, in order to purge the nozzle or to texture a plaster surface. By using a suitable form of hopper, the spray pistol may be used with the barrel vertical. A flexible seal 50 prevents spray material from entering the guide tube 26.
Patent GB-700950-A (GB)
Title: Improvements in or relating to welding electrodes
IPC: B23K35/02
Filed: 1951-09-17
Abstract: 700,950. Welding by fusion. ROCKWELD. Ltd., and BOAG, D. J. W. Aug. 8, 1952 [Sept. 17, 1951], No. 21785/51. Class 83 (4) In a continuous welding electrode having a metal core, a metal sheath wound on the core and comprising a single layer of two or more spaced wires wound helically and unidirectionally to form a plurality of cells between adjacent wires and a coating of flux incorporated in the sheath the core has a diameter which does not exceed 0.128 inch and the sheath wires have a diameter between 0.032 inch and 0.092 inch. Two, three, four or more sheath wires may be employed and may be of the same material as the core, e.g. mild steel, or may be of different material.
Patent GB-1239903-A (GB)
Title: Improvements in or relating to the cleansing of refuse bins
Inventor: WHITE WALTER GEORGE CHARLES
IPC: B08B9/08
Filed: 1967-05-10
Abstract: 1,239,903. Washing containers. ALWAYS WELDING Ltd. 2 Aug., 1968 [10 May, 1967], No. 21820/67. Heading B8T. A refuse bin cleaning vehicle comprises lifting gear 12, 16 to raise and invert each bin 13, a spray 18, 19 to spray each bin internally with washing liquid and disinfectant, and a foul liquid collection tank 28 to collect and filter the washing liquid running from an inverted bin while the bin is being sprayed. Each bin may be held by a yoke 14, the yoke running on tracks 15 during lifting and being provided with cam tracks 17 which co-operate with cam members on the vehicle to invert the bin. Washing water from a supply tank 24 may be heated by electrical elements 26 in a tank 22, the hot water being supplied via pump 23 to the spray 18, 19. A tank 31 may supply disinfectant into the pipe 34, the quantity of disinfectant being metered by a device 33. The foul liquid collection tank 28 may be provided with a filter 29 composed of two expanded metal elements (20), Fig. 3 (not shown).
Patent GB-1000530-A (GB)
Title: Alternator
IPC: H01L25/03
Filed: 1964-05-28
Abstract: 1,000,530. Alternators with rectifiers. FORD MOTOR CO. Ltd. May 28, 1964 [July 29, 1963], No. 22055/64. Heading H2A. In an alternator-rectifier unit for motor vehicles, the rectifiers 15, 16, 17 and 18, 21, 22 are soldered to arcuate metal terminal plates 63, 62 respectively on either side of the brush-gear, the input terminals of the rectifiers being connected to the alternator leads 26, 27, 28 by a printed circuit board 66. This board is carried on the terminal plates by insulating spacers 83 and spring clips 86. The plates are secured to the end-cover by bolts 91, 92 and terminals 93, 94.
Patent GB-294903-A (GB)
Title: A process and apparatus for preserving liquid nutriment such as milk and the like
IPC: A23L3/32
Filed: 1928-07-30
Abstract: 294,903. Seidel, F., and Giani, A., (Assignees of Parcus, G.). July 28, 1927, [Convention date]. Preserving milk etc.; conditioning food.-Milk and other nutrient liquids are sterilized and preserved by treatment, after they have been freed from gas, at a raised non-injurious temperature and under vacuum with electricity, the liquid flowing over a conducting plate' connected to one terminal of a current supply beneath conducting needles connected to the other terminal of the supply and being then hermetically sealed in flasks or cans. The raw milk is heated to below 66‹ C. and the air exhausted therefrom, and is then fed through a pipe 2 and sieve 6 to an airtight casing 1 which is maintained at about 1/# atmosphere pressure by connection through pipe 4 to vacuum. The milk flows in a layer 1 cm. deep down an insulated rustless steel plate 8 where it is electrically treated, the sterilized milk leaving through pipe 3. Current is supplied to plate S by cylindrical iron electrodes 10 each having a winding 11, the windings being connected in series to a current source. The current flows from plate 8 through the milk and the rarefied air above to an insulated metal plate 13 having a plurality of downwardly directed metal needles. The sterilized milk is cooled to 1‹ C. and then hermetically sealed in containers which may first be sterilized. The vitamin content of the milk is said to be increased by the treatment.
Patent GB-1021823-A (GB)
Title: Improved pyrotechnic propellant charge
Inventor: SCHERMULY ALFRED JAMES
IPC: F42B5/16
Filed: 1961-06-20
Abstract: 1,021,823. Pyrotechnic propellent charges. SCHERMULY Ltd. June 19, 1962 [June 20, 1961], No. 22199/61. Heading F3A. A method of making a pyrotechnic propellent charge comprises placing in a soft metal container, preferably of circular cross-section, a propellent composition such as a standard " black " or perchlorate composition and compressing the container until a reduction in volume of between 30-70% has been obtained. The Figure shows a container 1 of circular cross-section which after being placed in a mould has been subjected to compression along its longitudinal axis by a hydraulic press, pressure being applied first to one end of the container and then to the other. The mould prevents any substantial change in the cross-sectional area of the charge and the reduction in length of the container is taken up by convolutions 8. In one embodiment a rocket motor having a main charge 10, Fig. 3 (not shown) and a booster charge 11, is formed by suitably machining a compacted charge and fitting it into a light alloy casing 12. According to the invention, the main charge 10 burns to give a substantially constant thrust. A recess 21 may be provided, varnished or lined with a metal tube, to transfer the ignition flash to a pyrotechnic device (not shown) at the head of the rocket.
Patent GB-1260944-A (GB)
Title: An apparatus for drying a web
IPC: B31F1/28
Filed: 1969-05-01
Abstract: 1,260,944. Web-drying apparatus. SOC. D'ETUDES ET DE VENTE DE MATERIELS POUR LA FABRICATION ET LE FACONNAGE DU CARTON ONDULE-MARTIN. 1 May, 1969 [10 May, 1968], No. 22283/69. Heading F4G. [Also in Division G1] In an apparatus for drying webs, e.g. of corrugated cardboard, the web 4 is moved over heating chests 3 under the pressure exerted by a continuous belt 6 loaded by rollers 11, each roller 11 being connected to one or more pneumatic rams 15 for adjusting the contact pressure of the web on the heating chests 3. The rams 15 are supplied with compressed air via a pressure control valve 20 and a line 19, to vary the contact pressure in response to the speed of strip movement. The pressure of the gas supplied by the valve 20 is varied by an adjusting rod which is connected to a servomotor 22 through a series of gear-wheels. A potentiometer 33 connected to the shaft of gear-wheel 28 reflects the position of the rod as a voltage which is compared with the voltage produced by a tachometer dynamo (43), Fig. 4 (not shown), connected to a motor (42) moving the strip, in an electronic voltage comparator (44) of the regulating circuit. Depending on the sign of the voltage difference a reversing switch (41) operates the servomotor 22 to set that position of the rod which produces a balancing voltage on the potentiometer. The rod may also be adjusted manually by a spindle 31 having a calibrated dial 32.
Patent GB-222148-A (GB)
Title: Improvements in apparatus for the supply of fuel to ceramic furnaces or the like
IPC: F27D99/00
Filed: 1923-09-25
Abstract: 222,148. Monnier, A. Oct. 4, 1922, [Convention date]. Charging. - The driving-gear for a line of fuel-feeding devices 3 of the kind described in Specification 205,066, comprises a chain 16, which passes over a free-wheel sprocket 13 on each feeder, the chain being weighted at one end and connected at the other to a lever 18 operated either by hand or by an adjustable connecting-rod 23 from a crank shaft. When the lever is hand-operated the throw is limited by adjustable stops on the plate 20. When a multiple-throw crank-shaft is used in connection. with a number of lines of containers the cranks may be set at different angles so that the feed is not effected simultaneously in the different lines.
Patent GB-1305972-A (GB)
IPC: G01N31/00
Filed: 1970-05-08
Abstract: 1305972 Measuring oxygen demand of water photo-electrically REDERIAKTIEBOLAGET NORDSTJERNAN 8 May 1970 [9 May 1969 30 Jan 1970] 22426/70 Heading G1A [Also in Division B1] The oxygen demand of water is measured by treating a sample thereof with potassium dichromate, and sulphuric acid, and preferably boiling the reactants, and measuring by absorption photo-metry the amount of trivalent chromium ions produced. In the apparatus of Fig.1, a programming unit controls the operation of single stroke dosage pumps 11-14. The first, 11, is arranged to remove samples as required from a line through which water to be monitored is continuously flowing. A fixed volume is applied to reaction vessel 15. This is followed by addition of dichromate solution from 12 and acid from 13. Alternatively, the dichromate may be dissolved in the acid for delivery by one of pumps 12 or 13. If the water is known to contain a large amount of chloride ions, these are complexed by addition of divalent mercury ions from another dosage pump. Silver sulphate may be provided as catalyst for the main reaction which is promoted by boiling the reaction solution, a heating coil 20 being provided for the purpose. If the heat generated by the addition of the sulphuric acid is sufficient, or a lower temperature is sufficient for conversion of the dichromate to Cr<SP>3+</SP>, heating may be omitted, but thermostatic control and agitation is necessary since the transmissivity of the solution is affected by temperature variations. Other details of sample delivery apparatus &c. are reflux cooler 17; splash trap 16; fluorine rubber outlet hose 18 with a magnetically driven hose clamp 19; alternative drain value, Fig.2  (not shown) of corrosion proof material and generally cylindrical construction photo-electric apparatus. A helium filled glow discharge lamp 21 emitting 600 mÁ the absorption maximum of trivalent chromium light illuminates end 22 of branched fibre optic light guide 23, 24. The light is transmitted through the reaction vessel and a vessel 25 of similar dimensions containing reference solution. The photo-cell (cadmium sulphide cell) outputs are connected to logarithmic converters, a comparator 28 and a recorder. An actual measurement is carried out after the reaction solution has been boiling for a predetermined time, and while the solution is boiling, since by providing a detector with a high time constant the effect of bubbles is obviated. Standardization of the photo-electric system is by delivery of a standard solution of e.g. glucose potassium hydrogen phthalate solution, &c. from dosage pump 14 at predetermined intervals.
Patent GB-1497982-A (GB)
Title: Sliding bolt fastening for a wall or tailboard of a utility vehicle
IPC: B62D33/037
Filed: 1976-05-28
Abstract: 1497982 Sliding bolt fastenings F HESTERBERG & SOHNE 28 May 1976 [28 May 1975] 22444/76 Heading E2A A bolt 3 is constrained to slide in a channel provided in a fitting 2 under the action of a handle which is pulled away from the fitting to move the bolt to the unfastening position. A safety catch 10 is provided, this must be manually released before the bolt can be so moved. The handle may be a part of a toggle having arms 4, 5 one pivotally mounted on the casing and the other on the bolt 3. A spring-biased hook 11 engages a projection 15 on handle 4 and is releasable by depressing finger-hold 12. In other embodiments (not shown) the handle may be a lever hinged at one end to the bolt and hinged also to a radius arm hinged to the casing or it may be a spring strap.
Patent GB-831078-A (GB)
Title: Process for the production of regenerated cellulose threads from viscose
IPC: D01F2/10
Filed: 1956-07-20
Abstract: Regenerated cellulose threads are made by spinning a viscose containing 0.08-0.4% by weight of a water-soluble condensation product of the formula CnH2n+1O(CH2CH2O)mH o CnH2n+1COO(CH2CH2O)mH, in which n is an integer from 10 to 18 and m is an integer, e.g. from 16 to 20, into an aqueous coagulating and regenerating bath which is at an elevated temperature and contains, per litre, 41-68 grams of sulphuric and 186-250 grams, preferably 210 grams, of sodium sulphate and more than 37 grams of zinc sulphate, and highly stretching the resultant threads in a second bath which is hot and contains, per litre, 2-32 grams of sulphuric acid.  The first bath may also contain ferrous sulphate, the zinc sulphate content of the bath in this case still being more than 37 grams per litre of bath.  The viscose should generally contain 6.5-8.5% of cellulose, and preferably about 5-6% of sodium hydroxide and 32-45% of carbon bisulphide, based on the cellulose in the viscose.  The ball fall viscosity of the viscose is preferably 25-100 seconds at 20 DEG  C. and its gamma value is preferably 40-50.  The spinning bath preferably contains 44-75 grams of zinc sulphate per litre.  The temperature of the first bath is preferably 40-70 DEG  C. and of the second bath 90-98 DEG  C.  The length of the path of travel of the thread in the first bath is preferably 20-200 cm. and in the second bath 40-200 cm., and the degree of stretch in the second bath is preferably 50-120%.  The rate of withdrawal of the thread from the spinning nozzle is preferably 15-50 metres per minute.  The second bath preferably contains acid and salts in about one tenth to one fifth of the concentration of the acid and salts in the first bath.  The threads have higher basic yarn strengths and higher cord strengths than threads obtained from viscose without additives.  In an example, viscose containing 0.15% of an ethenoxylated oleyl alcohol having 11-20 ethylene oxide groups per molecule is spun into a bath at 60 DEG  C. containing, per litre, 54 grams of sulphuric acid, 210 grams of sodium sulphate and 50 grams of zinc sulphate. In a second bath at 90 DEG  C., of about one tenth to one fifth of the concentration of the first bath, the thread produced in the first bath is stretched by 100%.  Specification 541,099 is referred to.
Patent GB-442154-A (GB)
Title: Improvements in exhaust driven supercharging blowers
IPC: F04D25/04
Filed: 1934-08-02
Abstract: 442,154. Pumps. ELLIOTT, A. G., Darley Dene, Belper Road, Derby, STARK, F. H., 20, Monthermer Road, Cathays, Cardiff, and WOOD, H., 18, Overdale Road, Derby. Aug. 2, 1934, No. 22589. [Class 7 (ii)] In a multi-cylinder in-line engine a supercharging pump and an exhaust driven turbine are arranged on opposite sides of the cylinder block and connected by a shaft passing through the block, or adjacent thereto. In the V- engine shown a double rotary blower receives combustible mixture from a down-draught carburetter b and delivers it through volute chambers b<6>, b' to intake manifolds a3, a'. A shaft d passes to two turbines arranged outside the V and comprising rotors f, the blades g<1> of which are fed by nozzles from chambers f<4> and manifolds f which should be arranged so that the exhaust periods of cylinders communicating with the same nozzle do not overlap. Similarly the intake manifolds should be arranged so that the inlet periods of the cylinders served by the same pump ports do not overlap. Separate pumps may be provided for each bank of cylinders and, in this case, two connecting shafts will each be transverse to their respective cylinder block. Alternatively the shafts may be at the ends of the banks and connected by gearing.
Patent GB-316146-A (GB)
IPC: H02G3/04
Filed: 1929-07-23
Abstract: 316,146. Wacker Ges. fiir Elektrochemische Industrie Ges., Dr. A. July, 23, 1928, [Convention date]. Insulation; insulators.- Cylindrical insulating bodies of the type formed with collars are produced by winding a thread of paper, cotton or of a cellulose derivative, impregnated with lacquer on to a rotating or stationary roller, the collars being formed by superimposing layers of thread. The solvent is removed during rotation of the roller by a current of warm air or by heat applied to the roller; or the threads may be impregnated with material which does not require a solvent but which softens under the action of heat. The threads may be impregnated by the immersion in impregnating material of the rotating roller, or by coating or spraying on the roller. Several threads may be wound simultaneously, either parallel to each other or crossed, and mica, pasteboard, metal foil or metal wire windings may be interposed between wound layers to produce condenser effects. Threads of different layers may be impregnated with different materials. The cross-section of the threads may be oval or polygonal, or the threads may be of ribbon form.
Patent GB-423525-A (GB)
Title: Improvements relating to piston packing rings and methods for utilizing same
IPC: F16J9/20
Filed: 1933-08-14
Abstract: 423,525. Making piston &c. rings. MORGAN, J. D., 7, Newhall Street, Birming- ham.-(Cords, W. H.; San Diego, California, U.S.A.) Aug. 14, 1933, No. 22629. [Class 83 (ii)] [See also Group XXVI] A packing-ring for pistons &c., is made from steel or other resilient metal strip the width of which is many times the thickness, and is bent edgewise into an annulus of dished or frustro-conical form during the bending operation. Flat bands from elongated straight stock or from spools of steel ribon are taken, are cut into length and bent into circular form. In bending, the rim is allowed to assume a dished or frustro-conical form. The ring may be forced to take a slight convex or concave form or other curvature. Machines of the kind described in Specification 420,247 may be used in making the rings. The rings are split and are expanded radially by their own resiliency and by fluid-pressure which acts laterally thereon. In the arrangement shown in Fig. 4, alternate pairs of rings a with their dished sides facing in opposite directions, are shown in a groove. A helical, gapless ring is shown in Fig. 7. A crimped portion of the convolution closes the gap. In a modified form of ring, Fig. 11, the crimping is eliminated and one end is tapered at n and rounded at o.
Patent GB-373489-A (GB)
Title: Rotary agricultural tillers
IPC: H02K23/20
Filed: 1931-08-11
Abstract: 373,489. Machines for working land. MOTORKULTUR AKT.-GES., 24, Wallstrasse, Basle, Switzerland. Aug. 11, 1931, No. 22708. Convention date, Aug. 14, 1930. [Class 6 (i).] In a rotary tilling-machine in which the tines are secured to their driving-shaft by independent helical or spiral springs wound around the shaft, the springs are so formed that under the normal working stresses the greater part stands away from the shaft, but when an abnormal resistance is encountered the springs wind close on the circular or other shaft so as to shorten the arm at which the bending moment acts and avoid distortion and breakage. Double round-steel springs b, Figs. 1 and 3, may be fastened to the shaft a by hooks d fitting into recesses c. The looped end of the single or forked claw tine i is fastened to the looped end of the spring b by a key m passing through the loops and by a metal casing k sprung over them. Interchangeable flat-steel tines b, Fig. 4, may have claws b3 at their inner ends engaging in longitudinal slots o in the shaft a, and may be reinforced by ribbed plates engaging beneath the hooks d. Two or more flat springs may be arranged in the same transverse plane, as shown, so that the springs may come into contact with one another when stressed. The claw i has a loop i<2> at the end which is wedged between converging flanges b<4> on the spring b. A laterally bent steel claw j, Fig. 7, may be fastened to a flat spring by springing a flat loop on the claw over the bent end of the spring. Two similar or dissimilar claws may be fastened to one spring as shown in Fig. 8. Several symmetrical double springs may be secured on the shaft a with their claws in staggered relation, as shown in Fig. 9, the ends of the springs being engaged by hooks d<1> on neighbouring bushes u keyed on the shaft. Reference has been directed by the Comptroller to Specification 143,057, [Class 6 (i), Cultivating implements &c.].
Patent GB-168507-A (GB)
Title: Improvements in the manufacture of brackets and the like
IPC: B23P13/04
Filed: 1920-07-31
Abstract: 168,507. Williams Bros. & Piggott, Ltd., and Williams, W. R. July 31, 1920. Brackets.-A bracket socket is made by severing lengths from a bar of extruded or drawn metal formed as shown in Fig. 1, holes 6 being drilled through the base portion 1 to support the bracket proper. Countersunk holes 7 are drilled in the flanges 3 to receive the attaching-screws. Double sockets, shown in Fig. 4, may also be made in this manner. Specification 17557/04 is referred to.
Patent GB-314711-A (GB)
Title: Improvements in or relating to spring bolts
IPC: E05C1/04
Filed: 1928-08-09
Abstract: 314,711. Wells, E. G., and Dacke, C. E. H. Aug. 9, 1928. Sliding bolts.-A flat spring-shot bolt 15 is guided in loops 14 struck up from, or riveted to, a back-plate 11 secured by screws 12, and has a depending tongue 17 passing through a slot in the plate into a cavity 18 cut in the article &c. 10 to which the bolt is secured, the spring 19 also being housed in the cavity and bearing at one end against one end of said cavity and at the other against the tongue 17. The end 16 of the bolt is upturned to serve as an operating handle.