baber/WOPTO huggingface dataset:
Patent GB-340154-A (GB)
Title: Improvements in machines for weighing and sorting sheet metal plates
IPC: B07C5/24
Filed: 1930-01-21
Abstract: 340,154. Sorting by weighing. KRUMM, F., 47, Stefan Karl Michelstrasse, and WERNER & MERTZ, AKT.- GES., 3, Ander Kaiserbrucke, both in Mainz, Germany. Jan. 21, 1930, No. 2102. [Class 143.] An automatic machine for weighing and sorting sheet metal plates comprises a number of weighing devices mounted for revolving about a central vertical axis, and each provided with a supporting device adapted to release the plates being weighed at [definite parts of their path and in different positions of their weighbeams, the supporting devices being constructed for supporting the sheet metal plates in upright positions so that when released they are automatically delivered to different piles or machines. As shown in Fig. 5, a revolving frame m carries a number of scale beams b with inclined supports a for receiving the metal plates x. The plates are retained on the supports by pawls i locked by latches k and are balanced by sliding poise weights or by springs h connected to the beams through levers e. Cam-operated clamping members temporarily hold the beams in their depressed positions. An endless band 25 feeds the plates singly to a table 27 from which they are lifted by cam-operated levers 29 terminating in sucking heads 30 and are transferred to the supports a. Cam-operated arms 34 temporarily hold down the plates until the sucking heads are in tight engagement therewith, and rocking arms 40 arrest the feed of plates whilst the levers 29 are raised. As the scale beams are carried round by the frame m the pawls k are displaced, according to the depressions of the beams, by stationary abutments or cams, so as to deposit the plates in different places according to their weights. In a modified feeding arrangement, Fig. 9, the plates are fed from a pile 11 by means of sucking heads 56 controlled by a rocking arm 54 and cam 10 so that the sucking heads descend upon the topmost plate, raise it from the pile, carry it to the support a and, with the assistance of a vertical wall 12 leave the plate on the pawl i during the return movement of the rocking arm. In a modified means for releasing the plates from the beams, each weighing device is provided with a hand for indicating the weight and the hand engages electric contacts on the dial connected to brushes 1 .. 4, Fig. 13. As the weighing devices are carried round, the brushes 1 .. 4 engage contacts I, II &c. arranged at different heights at the plate-delivering stations and by completing the circuits cause electromagnets 64 to liberate the catches i and discharge the plates.
Patent GB-1104227-A (GB)
Title: Improvements in or relating to fastening devices
Inventor: LIPYEAT DENIS ALEXANDER
IPC: H02G7/00
Filed: 1966-01-18
Abstract: 1,104,227. Fastenings. G. Q. PARACHUTE CO. Ltd. 16 Dec., 1966 [18 Jan., 1966], No. 2234/66. Heading E2A. A fastening device for detachably attaching an article to a support, such as a tree, a post or the like, comprises a main strap 11 which is passed round the support 30 and the article 27 or a part thereof, a slotted link or tensioning lever 12 to which both end portions of the main strap are connected and a retaining strap 13 which is connected to the main strap and lever 12 and holds the lever in the position in which the article is securely attached to the support. The lever 12 has three parallel uprights 20, 31, 16, at one end and one upright 15 at the other end. One end portion of the strap 11 is attached by sewing to the upright 16. The other end portion of the strap 11 is passed round central upright 31 and is frictionally held. The lever is swung to lie against the support. One end portion of the strap 13 is secured to the strap 11 or attached thereto by a sliding lug 17 and the other end portion is adjustably passed round the central bar of a buckle 18. A strap 19 attached to the buckle is secured to the upright 15. The strap 13 is tightened to secure the article which is released by raising the tab 24 of the buckle 18. Alternatively the tensioning lever may comprise a rectangular frame with three bars at one end and a slotted bar at the other end, and the buckle may be secured to the sliding lug 17 directly.
Patent GB-1299549-A (GB)
Title: Aiii-bv cathodes having a built-in gradient of potential energy for increasing the emission efficiency
IPC: H01J1/34
Filed: 1971-01-18
Abstract: 1299549 Cathode materials VARIAN ASSOCIATES 18 Jan 1971 [19 Jan 1970] 2261/71 Heading H1D A photo-cathode comprises an A III B V  crystalline layer 34 containing a third constituent whose concentration changes through the layer to establish a potential energy gradient, e.g. 1000 volts/cm. which promotes free electron drift towards an emissive surface, the constituent may be Al, Ga, In, P, As, Sb or Zn. The cathode comprises a conductor 36, a P-type semi-conductor substrate 32 heavily doped with Zn or Be, the graded layer 34 an alkali metal layer 38 and an N-type Cs 2 O and/or Ce layer 40 to lower the work function. The constituent may be introduced as an increasing fraction during growth of the layer 34 by liquid or vapour epitaxy or vapour deposition. GaAs 0À85 Sb 0À15  is grown on GaAs substrates by liquid epitaxy. The gradient of Zn is effected by reducing the flow of organo-zinc vapour to the growth area or by lowering the temperature of the Zn or Zn alloy source during growth. The photo-cathode 14 is used in an infra-red image intensifier tube comprising an envelope 20, focusing lens 16, mirror 18, fluorescent screen 24 and accelerating electrodes 22 which focus the electron image emitted by the photo-cathode on to the screen. If the cathode is sufficiently thin the electron image may emerge on the side opposite that receiving incident radiation.
Patent GB-1491101-A (GB)
Title: Injector type liquid cooling apparatus
IPC: F28F25/00
Filed: 1975-01-20
Abstract: 1491101 Evaporative heat exchangers BALTIMORE AIRCOIL CO Inc 20 Jan 1975 [6 March 1974] 2305/75 Heading F4K [Also in Division B1] In an injector type evaporative cooler comprising a plurality of spray nozzles 24 for injecting water to be cooled into the inlet end 12 of a rectangular conduit 10 which is open at both ends to the atmosphere, liquid-air separation means, in the form of a plurality of parallel spaced apart vertically extending corrugated strips 28 divided into upper and lower banks 28a and 28b by a horizontal collection tray 30, are located at the outlet end 14 of the conduit 10. Openings 34 are provided in the bottom of the tray 30 to allow water collected therein to flow down into a common sump 42 below conduit 10. Curved turning vanes 44 extend horizontally across the conduit 10 downstream of the liquid-air separator strips 28. A plurality of closely spaced vertical air flow stabilizing strips 26 are distributed across the conduit immediately upstream of the spray nozzles 24, each strip 26 being formed with at least one corrugation 26a to provide waterair separation in the event of fluid blowback through the conduit 10 during adverse wind conditions. An air inlet slot 64 extending across the top of conduit 10 is provided immediately downstream of the air flow stabilizing strips 26. All the cooled water collected in the sump 42 is constrained to pass through a strainer or filter 54 before leaving through an outlet 58.
Patent GB-555644-A (GB)
Title: Improvements in or relating to mechanical loaders for loose materials
IPC: E21F13/06
Filed: 1942-02-21
Abstract: 555,644. Mechanical loaders. SUTCLIFFE. Ltd., R., and SHEPPARD, J. Feb. 21, 1942, No. 2321. [Class 78 (iv)] In mechanical loaders, for loose material, of the kind in which a positively driven gathering arm controlled to move in an orbital path gathers the loose coal, &c. on to the leading end of a loading conveyer, traversing mechanism for the forward or backward motion of the loader is effected by the gathering arm, the operation being through a ratchet drive or epicyclic gear. The heel 4x of the gathering arm 1 actuates a lever 2x through the intermediary of a distance piece 2 and thereby rocks a pawl whch advances a ratchet sector mounted on one of the road wheel axles. The piece 2 is cam shaped and is movable by a rod and adjustable bell-crank connected to the conveyer so that change of angle between head and conveyer effects longitudinal movement of the piece 2 in such a way that the action of the heel 4x on the lever 2x varies from full effect to zero. The piece 2 can be set by a screw 18. In a modification the heel 4x may be formed as a cam which acts on one end of a push rod, &c. to operate the pawl. Further the road wheel may be replaced by a tractor chain, and the pawl and ratchet by an epicyclic reduction gear giving a free-wheel action so that steering can be effected by driving one or both tracks.
Patent GB-624893-A (GB)
Title: Improvements in or relating to facsimile recorders
IPC: H04N1/23
Filed: 1947-01-24
Abstract: 624,893. Copying telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 24, 1947, No. 2336. Convention date, Dec. 28, 1945. [Class 40 (iii)] In connection with a recording device, such as a facsimile electrical recorder in which the message or design to be recorded appears as a deposit of marking material upon a fibrous strip, means are provided to cause the marking material to penetrate into the strip so as to prevent smudging, and in some cases to modify the appearance of the received design. The printed record strip 28, Fig. 1, after receiving an impression by a printing-bar 14 which presses a carbon paper 36 against the strip 28 so as to print by co-operation of a projecting helix 12 on a rotary drum 10, is passed over a rotatable heating device 39 comprising a filament 40 connected to a battery 41 and controlled by a rheostat 42. The heat causes the design to penetrate into the strip 28. The bar 14 is connected by a spring 22 to an armature 20 controlled by the energization of a magnet 19 in response to printing or image signals. In a modification, Fig. 2, the strip 28a after being printed upon is passed over a drum 34a so as to receive the application of a solvent from a drum 46 supplied from a tank 51 by a roller 48. The solvent is applied as shown to the unprinted side of the strip 38a, but may be applied to the printed side.
Patent GB-1096511-A (GB)
Title: Improvements relating to protective devices for split-phase electric motors
IPC: H02K11/25
Filed: 1966-01-18
Abstract: 1,096,511. Control of A.C. motors. DANFOSS A.S. Jan. 18, 1966 [Jan. 20, 1965], No. 2338/66. Heading H2J. A split-phase induction motor, e.g. in a refrigerator, has a resistor of high positive temperature co-efficient in series with the starting winding, and a switch responsive to main winding temperature either in the main winding circuit or the supply circuit.
Patent GB-1334591-A (GB)
Title: Process for the preparation of l-dopa and l-m-tyrosine and related compounds and intermediates used in such a process
IPC: C07D317/60
Filed: 1971-01-18
Abstract: 1334591 Substituted phenyl alanines ASTRA LAKEMEDEL AB 18 Jan 1971 [19 Jan 1970 25 June 1970 (2)] 2381/71 Heading C2C L-isomers of compounds of Formula IV wherein R<SP>11</SP> is a hydroxy group or an alkoxy group with not more than 5 carbon atoms and R<SP>111</SP> is hydrogen, a hydroxy group or an alkoxy group with not more than 5 carbon atoms or wherein R<SP>11</SP> and R<SP>111</SP> together is an alkylenedioxy group with one or two carbon atoms which comprises incubating a stereoselective acting E. coli-acylase with a novel compound of formula wherein X is H, F, Cl, Br or NO 2  which is prepared either by acylation of a dl-compound of Formula III above or an ester thereof followed by hydrolysis of any ester link, or by hydrogenation of a compound of formula Ethers may be converted to OH compounds by standard methods.  Intermediates are obtained according to the following reaction scheme Pharmaceutical compositions in conventional forms comprise an above L-isomer prepared by the above process and a diluent or carrier therefor.
Patent GB-555259-A (GB)
Title: Improvements in or relating to remote control mechanism for firing guns on aircraft or the like
IPC: F41A19/55
Filed: 1940-02-08
Abstract: 555,259. Electrically-actuated valves. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. Feb. 8, 1940, No. 2429. [Class 135'] [Also in Group XXI] Fluid pressure trigger motors or rear seat release devices for automatic guns have the control valve 12 electrically actuated from a remote position by a pair of solenoids 11 having cores 15 movable in opposite directions to open the valve against spring load. The arrangement of the solenoids is such that the valve cannot be inadvertently operated by gravitational action during landing or aerobatics. The solenoid cores are movable on a common axis and the valve is positioned between the cores and is displaceable along a path at right angles to this axis by the action of levers 30 which press on a piston having a projection 25 engaging the stem of the valve 12. Specification 518,113 is referred to.
Patent GB-741411-A (GB)
Title: Welding or cutting metal by fusion
IPC: B23K35/38
Filed: 1944-02-09
Abstract: 741,411. Welding and dividing by fusion. PRIEST, H. F., and GROSSE, A. V. Feb. 9, 1944 [Feb. 14, 1943], No. 2440/44. Class 83 (4). Metal, particularly copper, is cut or welded by a flame containing gaseous fluorine, preferably a hydrogen-fluorine flame. The fluorine should be supplied at a greater pressure than the hydrogen, the preferred ratio being more than 10 to 1, for example 50 Ib./inch<SP>2</SP>. A concentric torch made of copper, nickel or copper alloy containing more than 60 per cent copper, e.g. of copper with joints soldered with silver solder containing 60 per cent copper, may be employed, the fluorine being fed to the inner passage 11 and the hydrogen to the outer passage 12. When welding copper a copper fluoride is said to be formed over the weld, preventing oxidation thereof. Specification 730,271, [Group XXVIII], is referred to.
Patent GB-668775-A (GB)
Title: Improvements in or relating to pulverising mills
IPC: B02C13/13
Filed: 1950-01-31
Abstract: 668,775. Hammer-mills. BABCOCK & WILCOX, Ltd. Jan. 31, 1950 [April 28, 1949], No. 2481/50. Class 59 In a pulverizing mill comprising classifying means arranged to receive gas-borne particles and to deliver oversize particles to a milling zone fan means are arranged to effect the flow of two streams of gaseous fluid, one of which is arranged to pass to a classifier together with material delivered by a feeder and the second of which is adapted to carry from a milling zone material delivered to that zone by the classifier. As shown, Fig. 1, fuel from feeder 1 is introduced into a preliminary milling zone comprising beaters 3 by a stream of hot gaseous fluid which issues from a duct 5 and is induced by a fan 9 the stream then carrying the particles of pulverization to a classifier 12. The classifier comprises an impact core 13 and whirl chamber 14, the fine material leaving through outlet sleeve '16,. whilst oversized particles discharged from the classifier enter the fine milling zone defined by the beaters 6 via a shoot 18 and duct 19. Pulverized material from the zone of action of the beaters 6 is carried to the classifier by a second stream of hot gaseous fluid which issues from a duct 8 and is also induced by the fan 9. It will be seen that the milling zones are arranged in parallel as regards the flow of gaseous fluid and in series as regards the flow of fuel to be milled. A centrifugal tramp iron separator is associated with the beaters 3, the renewable heads of which are of softer material than the hardened metal forming the renewable heads of beaters 6. The fan 9 may be provided with vanes such that the two gas streams may flow at different rates which are separately controlled by external means. The temperature of the two streams may also be separately controllable, the temperature of that from duct 5 being generally higher than that from duct 8. In a modification, the preliminary milling zone and associated beaters 3 are omitted the fuel being blown directly from the feeder to the classifier.
Patent GB-705505-A (GB)
Title: Improvements in or relating to oil-modified resins
Inventor: CARTER RONALD JAMES
IPC: C08G63/48
Filed: 1950-10-09
Abstract: An oil modified alkyd resin is made from dehydrated castor oil having a viscosity of less than 1.5 poise at 25 DEG C.  Such an oil may be made by the method of Specification 703,363, [Group III]. With this oil it is possible to cook the resin to a low acid number while avoiding undue polymerization so that the finished resin has good brushing qualities when made up into paints.  The use of the low viscosity oil is particularly valuable in short oil alkyds, i.e. less than 50 per cent. oil length.  Tables are given showing cooking time and temperature, acid value and viscosity at 21.5 DEG C. of oil modified resins of 42 per cent. and 77 per cent. oil length from (a) linseed oil and (b) 5 poise (c) 1.6 poise, (d) 1.3 poise dehydrated castor oil.  The resins were made by the "mono-glyceride" process, i.e. phthalic anhydride was added to the product obtained by interesterifying glycerol and drying oil. It is stated that the resins of the invention suffer less from surface nip or after-tack than resins from higher viscosity dehydrated castor oil.
Patent GB-396093-A (GB)
Title: Improvements relating to nuts and bolts
IPC: F16B31/04
Filed: 1932-01-27
Abstract: 396,093. Bolts and nuts. GUY, H. L., Thornhill, Hale Road, Hale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 27, 1932, No. 2527. [Class 89 (i).] A nut and bolt unit is provided with a member having a screw-threaded engagement with the bolt and bearing on an annular end face thereof. The bolt 1 and nut 2 co-operate with a second nut 7 which screws on to the reduced portion 4 and bears on a shoulder 6 of the bolt 1. The latter has a central hole 8 and annular groove 5. The bolt 1 may be hollow and contain a supplementary bolt 10 which is engaged by the second nut 7. The'additional member may take the form of a screw 18 which screws into a tapped hole 14 in the main bolt and the head 15 of which engages the end surface 13. In the arrangement, Fig. 4, the main nut 2 is continued beyond the bearing face 3, the extension 2a having a conical exterior.
Patent GB-1002537-A (GB)
Title: Method of, and apparatus for, measuring the power transmitted by a wave-guide
Inventor: SPOONER PETER WILLIAM
IPC: G01R21/00
Filed: 1961-01-23
Abstract: 1,002,537. Power measurement JOSEPH LUCAS (INDUSTRIES) Ltd. Feb.19, 1962 [Jan. 23, 1961], No. 2561/61. Heading G1U. [Also in Division H1] To measure the power transmitted by a waveguide, a portion of the current carrying part of the waveguide is formed of material of higher resistivity than the remainder of the guide so as to increase the transverse temperature differences which occur in use and are dependent on the transmitted power, and the temperature difference between a point on the portion and a second point at a lower temperature is measured. In one embodiment, a waveguide has a lower wall 3 incorporating a ridge 4, sidewalls 5, 6 and an upper wall 7 to which is secured a plate 8; all parts being copper. A cut away portion 9 in the plate 8, parallel to the ridge 4, is closed by a strip of constantan foil 10, secured to which are a plurality of thermocouples consisting of copper wires 11 and constantan wires 12. The output from the thermocouples is taken through the wires 13,14 and a connector 15. In use the greater proportion of the current transmitted by the waveguide is in and opposite the ridge, producing a marked temperature difference between successive junctions of the thermocouple, this temperature difference being a measure of the power transmitted by the waveguide. The voltage developed by the thermocouple is measured by an instrument which may be calibrated to read power directly. Thermistors may be used instead of thermocouples in order to carry out the temperature measurement. The constantan foil together with the thermocouples may be pre-assembled prior to use in the waveguide.
Patent GB-1507622-A (GB)
Title: Cakeboards and like supports
IPC: A47G19/00
Filed: 1976-12-08
Abstract: 1507622 Cakeboards AMALGAMATED MINING & TRADING Ltd 8 Dec 1976 [23 Jan 1976] 02632/76 Heading A4A A plastics cakeboard comprises oppositely facing trays 10, 11 that are telescoped and secured together, and strengthened by an internal plate 15 and at least one corrugated expanded folded or otherwise deformed structure 16. The structure 16 may comprise a strip whose folds extend radially or chordally. Alternatively the structure may be a honeycomb or a sheet with domes or bowls moulded therein.
Patent GB-1342825-A (GB)
Title: Method of controlling a process and apparatus for use in the method involving calibration of a pick-up
IPC: G06G7/66
Filed: 1971-01-19
Abstract: 1342825 Measuring pressure electrically BALLAST-NEDAM GROEP NV 19 Jan 1971 [23 Jan 1970] 2653/71 Heading G1N A method for linearizing the output of a pressure transducer involves the determination of signals for two or more calibration pressures as well as for the measured pressure. In Fig. 3 L' represents the actual output of a pressure transducer, and L the idealized linear graph. It is required to find the idealized value S<SP>III</SP> III  for a measured signal S III . Values Y 1  Y 2  Y 3  &c on the idealized curve are known for a set of calibration pressures P 1  P 2  P 3  &c for which actual values W 1  W 2  W 3  apply. It is assumed that sections of the curve between W 1  and W 2  &c are linear. The ratio of the slopes of the appropriate corresponding sections of the curves is given by Y 3 -Y 2 /W 3 -W 2 , and hence the corrected value is   S<SP>III</SP> III  = Y 2  + (S III  - W 2 )(Y 3 -Y 2 )/(W 3 -W 2 ).   Fig. 1 shows a circuit for making measurements in any of the sections I, II, III, IV. A differential transducer 1 supplies signals for calibration pressures set by valves 5, 5', 5", which are operated by selector switches 20, these signals being stored at 21, 22, 23, 24. Values of Y 1  Y 2  Y 3  Y 4  are stored at 26, 27, 28, 29. A measured signal S in the first range is directed by a selector switch to the upper corrector unit I and is reduced in subtractor 40 by W 0  yielding S 1  - W 0  W 1  - W 0  and Y 1  - Y 0  are determined in subtractors 31 and 35 and their ratio determined at 44 and stored at 48. This output is fed to a multiplier 52 together with the signal S 1  - W 0 , and the product output is added to Y 0  to yield the correct value, which is passed via selector 9c to an indicator and control device 19. Similar processing arises for signals in the other ranges II, III, IV. The output may control a dredging process as at 141. A simplified arrangement for a single range only is disclosed Fig. 2 (not shown) and a circuit arrangement for the switches 9a 9b 9c whereby the measured signal is directed to the appropriate corrector range is also disclosed Fig. 4 (not shown). A completely different arrangement is disclosed in Fig. 5. During a calibration run with switches 208, 209 in the lower position a flexible tube is raised and "calibration" signals from transducer 201 are fed on to one track of a two track recorder, whilst corresponding "linear" signals are fed to the other track from a potentiometer 211. On a subsequent measuring operation (switches as shown) the measured signal is fed to a comparator 216 together with the signal from the "calibration" track which a head 215 happens to be reading at the time. Any imbalance causes a recorder motor to drive the recorder until a zero reading obtains when the motor stops. The appropriate "linear" value on the other track is then read by a head 214.