baber/WOPTO huggingface dataset:
Patent GB-1275657-A (GB)
Title: Photographic silver and vesicular images and a process for their production
Inventor: RANZ ERWIN
IPC: G03C5/40
Filed: 1969-12-05
Abstract: 1275657 Protection of silver and vesicular images AGFA GEVAERT A G 5 Dec 1969 [17 Dec 1968] 59485/69 Heading G2C A photographic material comprises a supported hydrophilic layer which carries an image composed of metallic silver and vesicles superimposed imagewise on the silver image and an outermost water-impermeable hydrophobic protective layer. The hydrophobic layer may be polyvinyl chloride, polyvinylidene chloride, polymethacrylate resin or a silicone resin containing methyl siloxane or phenylsiloxane units. The material is formed by imagewise exposing a supported silver halide emulsion layer, processing to form a silver image, treating the silver image with a compound which is decomposed on the particles of the silver image to yield an image of light scattering vesicles, and applying to the image-carrying layer a waterimpermeable hydrophobic protective layer, which stabilizes the images against moisture. Specification 1196200 is referred to.
Patent GB-1340149-A (GB)
Title: Process for the recovery of isoprene from mixtures containing the same
IPC: C07C7/08
Filed: 1971-12-23
Abstract: 1340149 Isoprene SNAM PROGETTI SpA 23 Dec 1971 [29 Dec 1970] 60089/71 Heading C5E A process for the recovery of isoprene from a feed mixture constituted at least mainly by hydrocarbons having 5 carbon atoms and including isoprene, which process comprises the following steps: (a) feeding to a first extractive distillation column the feed mixture and a first solvent mixture containing water; (b) discharging from the first extractive distillation column an overhead product which includes monoolefinic and/or saturated hydrocarbons originally present in the feed; (c) feeding a bottom product from the first extractive distillation column, which bottom product includes the first solvent mixture, to a second extractive distillation column; (d) withdrawing as a sidestream from the second extractive distillation column stream containing isoprene cyclopentadiene and acetylenic compounds; (e) recovering as a bottom product of the second extractive distillation column the first solvent mixture; (f) recycling the recovered first solvent mixture to the first and second extractive distillation columns; (g) feeding to a third extractive distillation column an overhead product of the second extractive distillation column and a second solvent mixture containing water, which may be the same as or different from the first solvent mixture; (h) discharging, as an overhead product, from the third extractive distillation column a stream containing isoprene (which stream is optionally subjected to rectification so as to purify the isoprene;) (i) subjecting the bottom product of the third extractive distillation column to stripping in a stripping column so as to recover the second solvent mixture which is recycled to the third extractive distillation column; and (j) removing any dimers and oligomers formed from a lower region of the stripping column. The sidestream from (d) may be discharged or may be treated by dimerizing the cyclopentadiene therein, separating the dicyclopentadiene and separating the acetylenic compounds before being recycled to the first exhaustive distillation column. The overhead product of the stripping column may be (i) recycled to the second extractive distillation column, (ii) discharged or (iii) treated similarly to (d) and recycled to one of the extractive distillation columns. The first and second solvent mixtures may comprise water and at least one solvent selected from morpholine, N-formyl morpholine, aniline, furfural, DMF, dimethylocetamide, NMP and #-methoxypropionitrile.
Patent GB-1339210-A (GB)
Title: Venous injection for safety and effective plasma substitute including artificial starch and the preparation thereof
IPC: C08B31/12
Filed: 1971-12-29
Abstract: 1339210 Plasma substitute KYORIN SEIYAKU KK 29 Dec 1971 [21 Aug 1971] 60496/ 71 Heading A5B A sterile, pyrogen free, aqueous solution containing 5.8-6.2% W/V of hydroxy ethyl starch having a degree of substitution of 0.5 to 0.6 and an intrinsic viscosity of 0.08 to 0.14, and containing sufficient inorganic and/or organic adjuvants (e.g. sodium, potassium and calcium salts, lactates and glucose) to ensure an ionic balance with blood and a pH of 6.2 Œ 0.5 may be used as a blood plasma substitute. It may be prepared by treating a solution of HES having the same degree of substitution but an intrinsic viscosity of 0.28 to 0.30 with an acid having a physiologically acceptable anion (e.g. HCl), adding appropriate adjuvants, sterilizing and removing pyrogens, e.g. by treatment with Raney nickel.
Patent GB-1272980-A (GB)
Title: Welding apparatus
IPC: B23K9/028
Filed: 1969-12-16
Abstract: 1,272,980. Fusion welding. COMPAK-OMATIC Inc. 16 Dec., 1969 [21 March, 1969], No. 61219/69. Heading B3R. A welding unit for effecting circular welds particularly by consumable electrode inert-gas shielded welding comprises telescopic tubular members 42, 46 carrying an angularly disposed welding tip 50 arranged to be rotated by a drive motor 56 driving through bevel gears 29, 30. The tubes 42, 46 are plastics-lined, the welding current path extending from a connection 77 through a contact block 66 to the tubes and down to the tip 50. The tip 50 is removable and may be straight or angled to provide adjustment of its angular disposition, its radius of operation being adjustable by telescopic adjustment of members 42, 46.
Patent GB-1280836-A (GB)
Title: Method for orientation of current-conducting non-magnetic bodies in a magnetic field and a device for carrying same into effect
Inventor: IOFFE BENYAMIN ALEXANDROVICH
IPC: H01F7/20
Filed: 1969-12-17
Abstract: 1280836 Orienting articles INSTITUT FIZIKI AN LATVIISKOI SSR 17 Dec 1969 [25 Dec 1968] 61630/69 Heading B8S Components 13, which are current conducting and non-magnetic and are positioned at random in magazine 8, are discharged one by one from the bottom thereof by a reciprocating pusher 9. Each component falls on to a platform 14 of the pusher which introduces the component into the alternating magnetic field of an electromagnet 7. The field causes the components to be oriented with the same end first. Components fall into shoot 15 to be discharged therefrom. Pusher 9 is provided with steel needles 10 and 11 which concentrate the magnetic field and improve the orientation of the component.
Patent GB-666400-A (GB)
IPC: C22C19/05
Abstract: 666,400. Alloys; annealing. ROLLSROYCE, Ltd. June 1, 1949. [June 1, 1948] No. 14824/48. Classes 72 and 82(i). An alloy suitable for engineering parts exposed to stress at high temperature, has the following composition, Mo 1-7 per cent; Al 3-7 per cent; Co 10.1-25 per cent; Cr 16- 25 per cent; Ni the balance, the sum Mo + 2 Al being not less than 12.5 and not more than 19. The alloy may also contain up to 0.01 per cent Ti; up to 10 per cent V; up to 4 per cent Nb; up to 5 per cent Fe; up to 2 per cent Mn; up to 1.5 per cent Si; up to 0.5 per cent C; up to 0.25 per cent N and up to 0.5 per cent in total of one or more of Ca, Mg, Ce and rare earth metals. The alloy may be heat treated by heating at 1,050-1,250‹C for 2-20 hours followed by heating at 700-1,000‹C for 2-50 hours. Specifications 583,212, 583,845 and 666,399 are referred to.
Patent GB-705319-A (GB)
Abstract: 705,319. Counting-apparatus. DEUTSCHER SPINNEREIMASCHINENBAU INGOLSTADT, NIEDERLASSUNG DER SCHUBERT & SALZER MASCHINENFABRIK AKT.-GES. Sept. 21, 1951 [April 27, 1951], No. 22162/51. Class 106 (1). [Also in Group XXXVI] The number of variations in thickness above a predetermined measurement, in a length of textile thread, is recorded together with the total length passed through the apparatus, to indicate the relative merit of different lengths of thread. A lap 1, Fig. 1, taken from a preparing machine, for instance a scutching machine, is placed in the lap guide 2 of the lap testing apparatus and rests on the unwinding roller 3. The fleece 4 drawn off the lap 1 is passed through between the condenser plates 5 and 6 and together with a winding tube placed in the second lap guide 7, which rests on the winding up rollers 8 and 9, is wound up into a fresh lap 10. The condenser plate 5 which is set in the non-conducting carrier 11 is supported in a carrier 12 and is adjustable in its distance from the condenser plate 6. Variations in capacity caused by change in the dimensions of the fleece 4 are conveyed to a device 15 shown as a recording instrument, which acts as a maximum and minimum switch. The apparatus 20 contains two counting mechanisms 21 and 22 driven by a small electric motor 23, Fig. 3. After the lap 1 to be tested has entered the lap testing machine, the motor is started by a switch 37. The counting mechanism 21 runs continuously with the motor 23 and this records the total length of the lap. The worm wheel 27 is conneced with an electromagnetic coupling 28 which is controlled by the device 15 through a relay 30 and actuates the associated counter only when the circuit is closed. When the lap is within the tolerance range the counting mechanism will remain stationary and will commence running when the predetermined tolerance range is exceeded and the relay 30 energizes the clutch 28. In this way lengths of lap exceeding the tolerance range are measured and added together so that, after the lap has run through the machine it is possible to read off the ratio of lengths of excess thickness to the total length of the lap, and to calculate the percentage. Fig. 5 shows an electronic controlling apparatus. The parts correspond to the previous example and bear the same reference numerals, the controlling impulse enters the circuit at 49 and is conveyed to the grid of one of the thyratron control tubes 46, 47, according to whether the set tolerance range is exceeded or not reached. Potentiometers 48 are provided to enable adjustment of the range to be made. The anode current of either thyratron serves to actuate the relay 30, which then operates the magentic clutch 28 as in the previous example.
Patent GB-739665-A (GB)
IPC: G03F5/22
Filed: 1954-03-22
Abstract: 739,665. Engraving by scanning. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. March 22, 1954 [March 31, 1953], No. 8296/54. Class 40 (3). To reduce moire patterns in a colour reproduction produced by means of a correlated set of screen - pattern colour - separation engraving plates each of which comprises a regular pattern of elementary deformations, the engraving of each plate is such that the centres of adjacent deformations lie at the apices of a series of parallelograms with the sides of the parallelograms of different ones of a plurality of plates forming different corresponding angles. The plates may be formed by conventional photoengraving methods by employing engravers' screens having the configuration required but. are preferably formed by means of the apparatus described in Specification 692,349 with suitable adjustments which are set forth in detail. Figs. 2a to 2d show one set of plates according to the invention the centres of adjacent deformations lying at the apices of parallelograms the sides of the parallelograms of different plates forming different angles a. Since the separations of the centres of the deformations in a direction parallel to a reference base line vary progressively from plate to plate as sin α the number of deformations per unit area for all plates is kept constant (so that all plates have the same resolution) the separation normal to this base line are varied from plate to plate as 1/sin α. Other plates according to the invention and which may be produced by means of the apparatus of Specification 692,349 suitably adjusted are shown in Figs. 3a to 3d and in Figs. 4a and 4b, the latter of which may replace the plates shown in Figs. 2b and 2d.
Patent GB-2005349-A (GB)
Title: Axial flow slurry pump
IPC: F04D3/00
Filed: 1978-07-06
Abstract: A pump suitable for pumping mineral slurries in volume over long pipe runs comprises a cylindrical housing 24 connected between an inlet elbow 14 and an outlet elbow 16. A drive shaft 34 extends through the housing and out through both elbows, for attachment of an electric motor to one or each end. The shaft is journalled in bearings 32 attached to the outsides of the elbows and preferably in an intermediate water-lubricated bearing between low and high pressure rotor sections on the shaft. <IMAGE>
Patent GB-2003181-A (GB)
Title: Improvements in cleaning of metal strip material
IPC: C25D7/06
Filed: 1978-08-02
Abstract: Apparatus is provided for cleaning metal strip prior to treatment thereof and essentially comprises a process tank (1) incorporating a bath (6) of a low-vapourising temperature cleaning liquid through which the metal strip (4) will be conveyed by conveying means (22). Before entry into the bath the strip is subjected to heating and washing by steam from steam spray nozzles (2). The cleaning liquid may be recirculated between the bath (6) and separate tanks where purification and recovery of the cleaning liquid may take place. The cleaning liquid is preferably a freon, e.g. trichloro- ethane. The metal strip may be of steel which then passes to an electrolytic tinning line. <IMAGE>
Patent GB-2008570-A (GB)
Title: The preparation of thiophene 2- and 3-malonic and acetic acids and esters
IPC: C07D333/24
Filed: 1978-08-24
Abstract: Thiophene 2- and 3-malonic and acetic acids and esters are made by reacting a thiophene or a derivative thereof with a diazo compound in the presence, as catalyst, of a rhodium (II) carboxylate. The process may be a one stage process, or a two stage process via thiophenium ylid or a cyclopropane derivative as an intermediate compound. The product is useful in the synthesis of penicillin and cephalosporin.
Patent GB-2008830-A (GB)
Title: A safety and alarm device for securing doors.
IPC: G08B13/08
Filed: 1978-11-06
Abstract: The device comprises a lock (5) which may be attached to the door frame, and an alarm contained in a housing (3) which may be attached to the door leaf from the inside thereof. A mechanical securing element, such as a door safety chain (6) is connected at one end to the housing and electricity conducting means, such as a flexible cable (8) is connected at one end to the alarm, the mechanical securing element and the conducting means being either mutually independent elements or being combined Figs 5-8 (not shown), the free ends of the mechanical securing element and of the conducting means being connected to an end piece (7) which may be locked in the lock when the door is nearly closed. The alarm is responsive to a pulling force exceeding a preselected threshold value and exerted on the mechanical securing element, and is an electronically triggerable acoustic signalling means. The conducting means forms part of a closed-circuit loop incorporating the alarm. <IMAGE>
Patent GB-2012621-A (GB)
Title: Concentration of coal by froth flotation
IPC: B03D1/016
Filed: 1978-11-08
Abstract: A method and treating agent for increasing the yield of deep mined coal where the particles in the coal are concentrated by froth flotation. This method consists of utilizing as a promoter an invertible water-in-oil emulsion of sodium polyacrylate (0.017 - 0.5 lb of dry sodium polyacrylate per ton of dry coal), having an average molecular weight of about 100,000 to 1,000,000 and more. The promoter is preferably used with an alcohol-type frother. The emulsion may be utilized neat and self inverts with the assistance of an oil-in-water surfactant (or activator) and the water in the system upon application to form an oil-in-water emulsion, or it may be used as a two-part system with an activator (aqueous) to promote inversion.
Patent GB-2009563-A (GB)
Title: Ultrasonic probes
Inventor: IAN MACDONALD GREEN
IPC: G01N29/24
Filed: 1978-11-16
Abstract: For ultrasonic examination of a body, such as the body of a patient, it is usual to place a transducer in contact with the body. A stand-off cell may be placed between the body and the transducer, for example to allow imaging of the skin line. The invention provides a solid stand-off cell which has input and output faces (3 and 4) inclined at an angle  theta . The angle  theta  is chosen so that components of energy which are reflected at the stand-off cell output face (4) interfere destructively to reduce the intensity of such reflected energy at the transducer (1). <IMAGE>
Patent GB-2036156-A (GB)
Title: Fastening bolts for doors
IPC: E05C3/12
Filed: 1978-12-05
Abstract: This invention relates to lock mechanisms for doors. Keeper portion (12a, 12b) in the edge portion (11) of a door can be engaged by fastening bolt (13) pivotably mounted about a vertical axis in the door frame for swinging into and out of the path of the swing of the door by means of a control mechanism in door frame. An actuating link (16) of the control mechanism is pivotably mounted about vertical axis (18) at the inner edge of the door frame. The bolt (13) has a longitudinal guide slot (13e) for receiving a guide member (21) at end of the actuating link 16. <IMAGE>
Patent GB-2038122-A (GB)
Title: Improvements in or relating to comparing/subtracting analog- digital converters
IPC: H03M1/00
Filed: 1978-12-19
Abstract: A comparing/subtracting analog- digital converter comprises a number of measuring units 2 equal to the number of bits of a given code. Each measuring unit 2 determines the value of a digit of the code by comparing the analog magnitude being connected with a reference magnitude proportional to the weight of bit of the code and has outputs 3 for supplying the result of the conversion. The outputs 3 are connected to a conversion error code detector 10 having outputs 11 forming outputs of the converter and supplying a conversion error code. The reference magnitudes are selected to be proportional to preset values, such as Fibonacci p-numbers or powers of a golden p-proportion. <IMAGE>
Patent GB-2045542-A (GB)
Title: Locking structure for rotor end winding of a distributed pole electric machine
IPC: H02K3/51
Filed: 1979-03-23
Abstract: A locking structure for rotor end winding (e.g. of a turbo-generator) comprises a retaining ring (1) to embrace the rotor end winding and a locking ring (3) to prevent the retaining ring from shifting axially with respect to the rotor body. Both rings are also secured by shrink fitting. Each ring has teeth to form a bayonet-joint, mating portions of the bayonet joint being provided on the outer surface of the retaining ring, and on the inner surface of the locking ring, while a ring key (4) is located on the rotor body (2) for a ring-bead on the end of the locking ring to abut against. <IMAGE>
Patent GB-2018872-A (GB)
Title: A double-glazed window structure and method of making it
IPC: E06B3/28
Filed: 1979-04-04
Abstract: A structure for constructing a double- glazed window by attaching an add- on outer window frame (B) to the exterior surface (3) of an existing window opening (1) having a ready-built inner window frame (A) is provided, in which an intermediate frame (C) is connected to the inboard periphery of the outer window frame (B) to enter the window opening (1) closely reaching the outboard periphery of the ready-built inner window frame (A), and a gap (12) between the intermediate frame (C) and the ready-built inner window frame (A) is filled by a sealing material (13) to form a joint (D). <IMAGE>
Patent GB-2019476-A (GB)
Title: Sprag Plates for Mine Roof Supports
IPC: E21D23/06
Filed: 1979-04-20
Abstract: The sprag plate 21 of a mine roof support is pivoted between a generally vertical (operative) position and a generally horizontal (retracted) position as a cantilever extension 22 on which it is mounted is extended and retracted. This is achieved by a ram 48 connected at 44 to links 43, slidably guided within the extension 22 and to which are pivoted further links 61 which are also pivoted to the sprag plate 21. As the ram 48 is retracted the links 43 slide relative to the extension 22 to which the sprag plate 21 is pivoted, thus causing it to swing into a longitudinal position. Further retraction of the ram causes retraction of the extension 22 relative to the roof plate 1. On extending the ram 48 the links 43 slide in the opposite direction relative to the extension 22 and cause the sprag plate to swing back into a vertical position, and further extension of the ram causes the extension 22 itself to extend relative to the roof plate 1. The roof plate 1 also contains a conventional cantilever extension 17 which is operated by a ram 15. One of the guides 18b of thin extension engages a plate 35 on the sprag plate 21 when the extension 22 is fully retracted to hold it horizontal. <IMAGE>
Patent GB-2048073-A (GB)
Title: A Tooth Cleaner
IPC: A46B5/04
Filed: 1979-05-01
Abstract: The tooth cleaner comprises a sleeve of or lined with water retaining material, and carries a cleaning agent. The sleeve may be of such dimensions as to be mountable on a user's finger and in this case may be closed at one end to define a finger stall.
Patent GB-2022521-A (GB)
Title: A dockship
IPC: B63B25/00
Filed: 1979-05-25
Abstract: To transport very large loads 5 which are too great to be stowed in its hold, a dockship is equipped with craft deck 13, between the port and starboard double sidewalls, on which one or more platform cars 14 can travel to carry such a large load from a ramp 21 extended between the ship and a quay 20. Rows of jack dollies 11 which travel on roll tracks 8 on the double sidewalls are used to transfer the load between the platform car and forward hatch covers which form a deck on which the load is stowed. The dockship has a large unobstructed hold extending aft from a forepeak bulkhead to a stern gate for the transport of smaller dry or wet cargo and a gantry crane which travels along the sidewalls. The deck 13 may be vertically adjustable. During loading and unloading the ship is moored by a spud arranged in the fore part. <IMAGE>
Patent GB-2056073-A (GB)
Title: DC tachogenerators
IPC: H02K23/54
Filed: 1979-08-03
Abstract: Arcuate magnetic poles (22, 24) are coaxially arranged with respect to coils (N1 to N4) wound on a toroid (36) rotatable with a shaft (12). The flux from the poles (22, 24) in the air gap between them and the toroid (36) is uniform around the angular extent of each pole, the arrangement being such that each coil pair (N1, N3 and N2, N4) produces one of alternating waveforms (V1, V2) that have flat peaks of identical amplitude and overlapping in time. Switching between the waveforms (V1, V2) is effected by a commutator (34) and brushes (42) during the overlap intervals (X) to produce a substantially ripple-free output voltage (V0) of amplitude proportional to the relative speed of rotation of the poles (22, 24) and toroid (36), i.e. the speed of rotation of the shaft. The poles can alternatively be rotated with the coils stationary, in which case brushless switching and rectification is used. <IMAGE>
Patent GB-2029787-A (GB)
Title: Conveyor With Buffer Storage
IPC: A24C5/35
Filed: 1979-08-13
Abstract: A system (5) for feeding elongated elements, particularly cigarettes, to a packaging machine (1), including at least two feed devices (6, 7), each having means (8-24, 25) for connection to an inlet hopper (2) of said packaging machine (1) in order to feed this latter with said elongated elements; and storage means (32) disposed below at least one of said connection means (24, 25); this latter having an end duct (25) having a substantially horizontal terminal portion communicating at one end with said hopper (2) and provided with an aperture (30), through which said duct (25) communicates with said storage means (32), the portion of said duct (25) lying between said hopper (2) and said aperture (30) being defined by reversible conveyor means (27, 29). <IMAGE>