baber/WOPTO huggingface dataset:
Patent GB-1439288-A (GB)
Title: Apparatus for the protection against erosion at the base of underwate structures
IPC: E02B17/02
Filed: 1973-08-29
Abstract: 1439288 Preventing erosion C G DORIS (COMPAGNIE GENERAL POUR LES DEVELOPPEMENTS OPERATIONNELS DES RICHESSES SOUS-MARINES) 29 Aug 1973 [15 Sept 1972] 40563/73 Heading E1H To prevent erosion and undermining of the foundation of a wholly or partly submerged object 1 it is surrounded by a perforate wall 2, whose perforations 4a, 4b, 4c are shaped to enhance the flow of water towards the object 1 near its base, or enhance the flow of water away from the object in a zone above the base of the object or both. To achieve this the perforations are convergently tapered in the desired direction of flow. In another arrangement Figs. 4-6 (not shown), perforated walls are located on each side of an underwater pipeline resting on the sea bed, or box-like assemblies having perforated side walls are located around support-blocks on which the pipe is supported at intervals.
Patent GB-1307206-A (GB)
Title: Method and apparatus for producing coloured prints
IPC: G03F3/10
Filed: 1971-08-31
Abstract: 1307206 Colour printing AGFA-GEVAERT AG 31 Aug 1971 [31 Aug 1970] 40574/71 Heading H4F Colour prints are produced on a paper strip 18 by superimposing individual colour component images which are first produced on respective ink supports 3 in respective exposure stations (two such stations are shown although for high-quality colour printing there would be from four to six such stations for different colour components). In each station a laser beam 5 modulated by a component colour video signal, derived by point-by-point analysis of an original, is line deflected by mirror drum 6 over an ink support 3, e.g. a paper foil having a thin coating of wax. The resulting supports 3 with changed hydrophilic and oleophilic properties are moistened 9 and inked 8 with appropriate coloured inks and then urged into contact with the paper strip by means of a pressure roller 16 which is biased towards the printing drum 7. By placing a grid over the original which is transversely scanned by a rotating mirror, half tone shadings may be reproduced. The individual finished colour prints are separated by a cutting device 19-21. One continuous wave or pulsed laser for each station may be provided, although it is preferable to use a single laser, e.g. a 10À6 Á CO 2  laser, the beam being distributed to each station and modulated by a gallium arsenide electrooptic device.
Patent GB-407493-A (GB)
Abstract: 407,493. Door - operating apparatus. NEWMAN & SONS, Ltd., W., and SHEAD, H. C., 268, Hospital Street, Birmingham. Jan. 4, 1933, No. 236. [Class 65 (i).] In a system for unfastening and opening doors by the fall of a weight which is normally supported by a detent releasable when it is required to open the doors, as described in Specification 407,494, the detent is normally held in position by a trip lever which is released when an electromagnet is energized, so that the weight can disengage from the detent and fall in order to open the doors. The weight 2 is carried by a rod 13 attached to a dooroperating cable, and is normally supported by a hook 16 pivoted on the weight and engaging the nose 22 of a detent 23 pivotally mounted at 18. A latch member 25 pivoted to the free end of the detent 23 has a shoulder engaging a pivoted trip arm 27 and also has a bevelled portion which engages a fixed part 33 to raise the latch clear of the trip arm when the latter allows the latch to move to the right. The trip arm is normally held in the position shown by the pivoted armature 29 of an electromagnet 30. Energization of the electromagnet moves its armature clear of the trip arm 27, which is then free to be moved by the weight 2 acting through the detent 23 and latch 25 ; the movement of the latch carries it up clear of the trip arm, and the detent can then swing over to free the hook 16 and allow the weight to fall. The detent, the trip arm, and the armature 29 are returned to their normal position by springs. A cable 38 is provided for lifting the weight to its normal position after operation.
Patent GB-943830-A (GB)
Title: Improvements in or relating to the grinding of material
IPC: B02C17/16
Filed: 1962-10-29
Abstract: 943,830. Ball &c. mills ; separating solids. NISSO SEIKO KABUSHIKI KAISHA. Oct. 29, 1962 [Oct. 27, 1961 (4)], No. 40834/62. Headings B2A and B2H. A grinding mill comprises a shell 1 having on its inner surface peripheral ribs 3 and generally vertical ribs 4, and a rotatably mounted helical feed screw 2 which serves on rotation to push grinding media packed between the shell and screw upwardly with respect to the screw. The ribs may be provided with an abrasion resisting coating. The lower end of the screw has fixed thereto a disc 14 the underside of which has inclined ribs 5 which define an inverted conical surface. Material to be ground and fluid enter a classifier 8, 11 through an inlet funnel 10 and are recirculated from the bottom of the shell by means of a pump 12. The size of the ground particles which are allowed to overflow the edge of classifier vessel 8 into an outlet via channel 9 can be controlled by raising or lowering size controller 11 by means of mechanism 13. The mill may be modified in various ways. For example, the grinding media located under the disc 14 may be replaced by other substances. Further, the disc may be supported from below by a slide mechanism. Also, the packed column may be supported by a grid plate. Further, the internal surface of the shell can be provided with a rubber coating and the internal surface of the classifier serve as the inlet funnel. In addition, the suspension of the material particles and the circulated fluid can be conveyed upward to the upper part of the packed column through pipes extending along the shell wall. Further, the suspension can be flowed out from the circumference of the enlarged part of the shell.
Patent GB-1522668-A (GB)
Title: Dynamoelectric machines
IPC: H02K3/04
Filed: 1975-10-07
Abstract: 1522668 Temperature simulating arrangements SPRECHER & SCHUH AG 22 Oct 1975 [13 Nov 1974] 43395/75 Heading H2K An R.C. temperature-simulating network 1 responsive to a signal I L  representing the current through a transformer or motor is recharged after a temporary interruption of the supply in accordance with the voltage remaining on a Capacitor C 3  of an auxiliary simulator 2. Under normal conditions the output of the primary simulator 1 is supplied via a sample-and-hold circuit 5 to the auxiliary simulator capacitor C 3 . If a signal U SEN  representing the supply voltage (to both the protected apparatus and the protecting circuit) fails, switches S 1 , S 2  change over, and on restoration of the supply amplifier O 2  becomes operative to pass the auxiliary simulator voltage back to the main simulator, diode D 1  ensuring that both C 1  and C 2  are charged correctly. The switches S 1 , S 2  then reset after a time delay. A detailed circuit using a transistor/zener diode network to derive U SEN , a MOSFET as switch S 1 , and a MOSFET differential amplifier as switch S 2 /amplifier O 2  is described.
Patent GB-1156924-A (GB)
Title: Improvements in or relating to Boiler Installations containing Hot Water Storage Vessels
Inventor: VIESSMANN HANS
IPC: F24H1/50
Filed: 1966-09-14
Abstract: 1,156,924. Hot water boilers. H. VIESSMANN. 14 Sept., 1966 [30 Sept., 1965], No. 41146/66. Heading F4A. A hot water storage tank 1 located within the water containing shell of a boiler, comprises a corrugated cylindrical wall portion 2 and sealing end portions 3, 4. Water inlet and outlet tubes 6, 7 and a cleaning hole 5 are provided in one or other of the end portions. The end portions 3, 4 which include flow channels 15 to aid the flow of heating water about the outside of the tank 1, are provided with reinforcing means. These may comprise correspondingly shaped portions 8, 8<SP>1</SP> of the adjacent boiler walls, or else perforated sheet steel covers (Figs. 3 and 4, not shown). Additionally ring shaped perforated sectional elements 10, 10<SP>1</SP> attached to the boiler walls 9, 9<SP>1</SP> support concave longitudinal straps 11 which reinforce the tank 1 whilst allowing its longitudinal expansion. Alternatively one of the ring shaped elements may be dispensed with, the straps being secured directly to the perforated covers and the boiler walls. The tank may be vertically mounted within the boiler.
Patent GB-1248981-A (GB)
Title: Improvements in or relating to rack and pinion assemblies
Inventor: ADAMS FREDERICK JOHN
IPC: B62D3/12
Filed: 1968-08-30
Abstract: 1,248,981. Rack-and-pinion gearing. CAM GEARS Ltd. 5 June, 1969 [30 Aug., 1968], No. 41435/68. Heading F2Q. In a rack-and-pinion assembly for a vehicle steering gear, the pinion 1 is rotatably supported in a housing 4 by bearings 2, 3, of which the bearing 3 comprises co-operating pin-andsocket parts 9, 11, one part mounted in the housing and the other carried for rotation with the pinion 1, with the pin part 9 having a hemispherical or other axially convex bearing head profile. As shown, the socket 11 is in the pinion end face, but in Fig. 3 (not shown) the socket is in an insert (22) of the housing and the pin part (20) is integral with the pinion. The bearing 2 is axially adjustable by a nut 16 to preload the bearings. A shoe 8 of the type described in Specification 1,248,982 supports the rack bar 7 and urges the rack 6 into mesh with the pinion 1.
Patent GB-1208539-A (GB)
Title: Improvements in or relating to roller assemblies
IPC: B30B9/20
Filed: 1969-08-20
Abstract: 1,208,539. Rollers. ARTOS DR. ING. MEIER WINDHORST K.G. 20 Aug., 1969 [23 Aug., 1968], No. 41465/69. Heading F2U. A squeeze roller for treating textiles consists of an outer jacket tube 5 rigidly secured to an inner carrier tube or rod 1 over a short central zone 6, the tubes being mounted in end bearings 2, 11 carried by crosspieces 12 to which transverse loading 4 can be applied by hydraulic or pneumatic means through axially movable bearings 13, to vary the relative loadings on the bearings 2,11 to provide a more uniform pressure loading along the length of the roller.
Patent GB-1104459-A (GB)
Title: Improvements in or relating to apparatus for use in gas-liquid chromatography
Inventor: BOTTOMLEY WILLIAM KELVIN
IPC: G01N30/86
Filed: 1965-09-30
Abstract: 1,104,459. Apparatus for gas liquid. chromotography. HONEYWELL CONTROLS Ltd. 16 Nov., 1966 [30 Sept., 1965], No.4.1485/65. Heading G4H. Apparatus for use in gas liquid chromatography includes means for integrating an electrical signal having a main peak and a subsidiary peak (Fig. 2) and means for generating timing signals when the electrical signal passes X through pre-set magnitudes X, and Y = -, to 2 cause read-out of the integrator means. In the embodiment described the timing signals are generated by comparing the electrical input signal on terminal 1 (Fig. 1) with a reference signal X from an adjustable tapping 6 on a resistor 5 in a first comparator 4 and with a X reference signal - from the centre tapping 9 2 of a potentiometer 8 in a second comparator 3. The output from the comparators control pulse generators 10, 12 so that timing pulses are applied on leads 14, 15 to the integrator circuit which is as described in Specification 1,007,114 to cause read-out when the input drops through the pre-set values. Consequently values representing the areas A, B, C, D (Fig. 2) are read out to a printer, the area of the subsidiary peak being represented by C + D - B.
Patent GB-1116447-A (GB)
Title: Improvements in and relating to surgical probes
Inventor: ROBERTS DAVID COULTER
IPC: A61B18/02
Filed: 1965-09-30
Abstract: 1,116,447. Cryogenic probes for surgery. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 30 Sept., 1966 [30 Sept., 1965], No. 41619/65. Heading A5R. A surgical probe comprises an outer vacuumjacketed casing within which is located an inner tube and from one end of which projects a probe head. The inner tube which is detachable from the casing, is arranged to receive cryogenic fluid at its end remote from the probe head and is in thermal contact with the probe head at its other end; the probe head has a closed end carrying a removable probe tip which is cooled by thermal contact with the probe head. As illustrated in Figure 1. the probe comprises a vacuum-jacketed casing 1 at one end of which is secured a probe head 4, on to which is screwed a probe tip 5. Located within the casing is an inner tube 2 one end of which is secured to the other end of the casing by screwed attachment and flange assembly 13 and optional expansion joint 14: on the other end of the inner tube is mounted hollow end assembly 6 having a threaded portion 6a which screws into. the probe head. The end of the probe head adjacent the probe tip either is made solid or is sealed with a plug to prevent contact of cyrogenic fluid with the probe tip. Cryogenic fluid is introduced into the inner tube through inlet duct 3. flows inside the tube into the hollow end assembly, passes from the tube through openings 9 adjacent the probe head to the annular space 10, and flows in the reverse direction around the tube to vent to the atmosphere via outlet 11. Electric leads 12 pass through the outlet to an electric heating element in the form of a coil 7 and a thermally sensitive electric device, for example thermocouple 8, which are carried in the inner tube to be located within the probe head. The casing also may include additional thermal insulation to reduce radiation losses. As illustrated in Figure 2 (not shown), the inner tube is connected via the inlet duct and a flexible duct to a vessel containing cyrogenic fluid, for example a liquid which is evaporated by an electric heater contained in the vessel and connected to an electric supply through transformer and a variable auto-transformer. Advantageously, the gaseous fluid contains liquid  droplets. Alternatively, the probe may contain a cooler making use of the Joule-Thomson effect to produce a cryogenic fluid. The casing may be made of stainless steel or a copper alloy of low thermal conductivity, for example cupro-nickel; the inner tube may be made of stainless steal; the hollow end assembly is made of a material having high thermal conductivity, for example copper, a copper alloy or silver; the probe tip is made or a readily sterilisable metal having high thermal conductivity, for example silver. The cryogenic fluid may be nitrogen or argon. The probe may be used as an ophthalmic probe or for other surgical purposes, for example in the treatment of tumours.
Patent GB-1341771-A (GB)
Title: Adjustable louvred shutter
IPC: F24F13/15
Filed: 1971-09-07
Abstract: 1341771 Louvre operating mechanism INDUSTRIELE ONDERNEMING W H BRASKAMP NV 7 Sept 1971 [7 Sept 1970] 41734/71 Heading E2M [Also in Division F4] An adjustable louvre shutter includes a housing 1, a louvre 2 mounted in the housing for pivotal movement between an open position and a closed position, the louvre being biased to one of said positions and being movable to the other position against the bias by an actuating means. The actuating means comprises a frame formed by two strips 14 connected by spacing means 15-19, pivotally mounted at one end to the housing and connected at the other end to the louvre by an arm 7 which is common to all the louvres 2, and a hollow cylinder 21 connected at each end to spacing members 17 and 19. The cylinder 21 is closed at one end by a plug 22, and at the other by a pin 23 axially slidable within the cylinder 21, and mounted between the plug 22 and pin 23 is a rod 24 of silicone rubber. An electric heating element 26 surrounds the cylinder 21, and when energized heats the rod 24 causing it to expand and move pin 23 out of the cylinder 21 and cause the frame to swing upwardly about a pivot 13, moving rod 7 upwards and thus opening the louvres. A tension spring (20) is arranged between the frame and a bow 10 which urges the frame pivotally downwards about pivot 13 and biases the louvre to the closed position when the rod cools. The louvres are formed of plastics material and pivotally mounted by means of hinge pins 3 integral with the louvres. Each louvre 2 has a triangular plate 5 at one end having a pin 6 which engages in slots of the common actuating rod 7. An electric fan may be mounted behind the shutter, and connected so that the shutter is opened when the fan is switched on.
Patent GB-1099246-A (GB)
Title: Fabrication of films of organic or organosilicon polymers
IPC: B29D7/01
Filed: 1966-09-19
Abstract: 1,099,246. Making films of organic or organosilicon polymers. DOW CORNING CORPORATION. Sept. 19, 1966 [Oct. 1, 1965], No. 41773/66. Heading B5B. Films are made from organic or organosilicon polymers which are soluble in volatile organic solvents by forming a 0À2 to 50% by weight solution of the polymer in a volatile organic solvent, placing the solution in contact with a membrane which is permeable to the solvent but not to the polymer, and to which the polymer film to be formed does not adhere, drawing the solvent through the membrane by means of a partial vacuum applied to the other side of the membrane thereby leaving a polymer film in the membrane, and removing the film from the membrane. The polymers used may be infusible at temperatures up to and above 300 C. and may be members of the group of organo-polysiloxanes known as phenylsilsesquioxanes, which are infusible at temperatures in excess of 350 C. and are readily soluble in solvents such as benzene. The films may be made by means of an apparatus comprising a housing, a support grid in the housing, a silicone rubber membrane supported by the grid and sealed against the housing, and means for producing a partial vacuum in the housing on one side of the silicone rubber membrane whereby solvent may be drawn through the membrane from a solvent-polymer solution. In operation the silicone rubber membrane is first removed from the housing, and swelled by immersion in an organic solvent such as benzene or Stoddard solvent for several hours. The sheet is then replaced on the support grid in the housing and the polymer solution, for example, a 5% by weight solution of a poly (phenylsilsesquioxane), is poured on to the membrane and a partial vacuum (e.g. 7-8 mm. Hg pressure absolute) is applied to the portion of the housing below the membrane and its support grid. When all the solvent has been removed a smooth and wrinkle-free film of the polymer which does not adhere to the membrane remains on the upper surface of the membrane and is stripped from the latter after the pressure in the portion of the housing below the supported membrane is restored to atmospheric. The films may be mass produced by means of an apparatus comprising a drum rotatable about its horizontal axis and having a perforated periphery covered with a membrane permeable to the solvent but not the polymer. The drum is partially immersed in a tank of a solution of the polymer in an organic solvent. A series of heating coils are located around the inner surface of the periphery of the drum and a partial vacuum is applied to the interior of the drum. The polymeric film thereby left on the peripheral surface of the drum as it rotates is continuously stripped from the drum and wound on rolls.
Patent GB-1032997-A (GB)
Title: Improvements in or relating to planking or plating constructions and structural elements therefor
IPC: B63B3/16
Filed: 1964-10-14
Abstract: 1,032,997. Boot skins. L. R. LYON. Oct. 14, 1964, No. 41963/64. Heading B7S. [Also in Division E1]  A planking or plating element 24 (Fig. 2, not shown), having parallel longitudinal edges has one edge 26 comprising two cylindrical wall portions 30, 32 defining parts of a common cylinder extending along such edge, the other edge 28 comprising a generally cylindrical groove-defining portion 36 extending along the edge with an internal surface 34 which is greater than hemicylindrical in extent and the diameter of which corresponds to the effective external diameter of the cylinder defined by the wall portions 30, 32 so that the wall portions of one element may be inserted into the groove of another element, the interfitted portions being effective to transmit stresses from one element to the other. The longitudinal recess formed between the interfitted portions may be filled with a sealing compound 44. The elements may be secured by rivets 46 to a rib 50. The lower end 38 of the grooveforming portion 36 of one element may be accepted between the wall portion 32 and a locking projection 40 on another.
Patent GB-904137-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/45
Filed: 1958-12-30
Abstract: 904,137. Electrostatic precipitators. PENNEY, G. W. Dec. 30, 1958 [Jan. 8, 1958]; No. 41997/58. Class 39 (1). A large number of precipitator plates are held parallel to the gas stream by a plurality of spacerstrips extending parallel to the gas flow and at regular lateral spacing. The plates may be of any shape which permits a reasonably uniform spacing between adjacent plates to be maintained, in particular they may be flat, cylindrical or spiral. The plates may be flexible or rigid and the spacing must be of between 0.015 and 0.08 inch. The flexibility and closeness of the plates gives rise to possible shorting. The effects of this may be localized by associating a 10<SP>8</SP> ohm resistance comprising a semi-conductive covering on a wire with each adjacent pair of positively charged metal plates. If the plates are of the flexible type such as tricresyl phosphate coated paper then the filtering system may be split into two halves, 7, 7<SP>1</SP>; 8, 8<SP>1</SP>, Fig. 1. In this case the incoming gas stream is ionized in chamber 1 by corona set up between wires 5 and grounded electrode 6a-6d. This ionized gas passes into the collector chamber 2 where it is fed through precipitators 7, 8 which in one form have 229 plates, every 38th plate being good conductor such as metal foil, or foil-coated paper, connected as shown to +13kv. or earth. The remaining plates need only be semi-conducting. The spacer strips must be semi-conducting if the electrodes are mainly semi-conducting, and if metallic electrodes are used the spacers must be insulating. A preferred form is metal electrode 0.005-0.006 inch thick for plates P1, P39, etc.; paper at 0.003 inch thick for plates P2-P38, P40-P76, &c., and cardboard spacer strips. After being joined together using shellac, the whole assembly is then soaked in tricresyl phosphate. The cleaned gas passes out through a blower used to generate an air velocity of about 300 feet per minute. Due to the close spacing of the plates the collector-unit need only be 2-3 inches long in the direction of their flow. Many details of leakage currents and powers, and desired field gradients are given by way of illustration. Short-circuiting in the paper collector does not have any serious effect due to the high resistivity of the plates and spacers since the potential gradient is only adversely affected in the vicinity of the short. When cleansing of this collector is necessary it is preferred that they should be discarded and new ones put in in their place. In the case of a metal-plated collector the plates may be oil-washed, vacuum-cleaned, tapped, or cleaned by other known methods. The preferred potential in this form are + 300V. and 0, all the odd-numbered plates being at earth potential. Specification 475,443 is referred to.