baber/WOPTO huggingface dataset:
Patent GB-1530640-A (GB)
Title: Imaging method
IPC: G03F7/28
Filed: 1976-03-30
Abstract: 1530640 Photographic processes XEROX CORP 30 March 1976 12756/76 Heading G2C A method of forming a positive image on a surface comprises: (a) forming a first uniform coating of sulphur on the surface; (b) exposing the surface of the first sulphur coating to an imagewise pattern of electromagnetic radiation; (c) wiping the exposed surface of the first sulphur coating; (d) coating the wiped surface with a second uniform coating of sulphur; and (e) developing the recoated surface with a dry particulate material. The surface may be coated either by spraying with or dipping into a solution of roll, crystalline amorphous, flowers of sulphur or mixtures thereof in toluene, chloroform, trichloroethylene, carbon tetrachloride, benzene, acetone or mixtures thereof and dried with an air blast. The surface of the first sulphur coating is preferably disturbed by wiping with rayon wool. It is stated that this wiping smears the portions of the sulphur surface that have been exposed and that, in applying the second sulphur coating (by dipping the surface into or spraying it with any of the above-mentioned sulphur solutions) these smeared portions become sites for the formation of randomly oriented sulphur crystals. The particulate material, while adhering to amorphous sulphur sites corresponding to the unexposed portions of the first sulphur coating does not adhere to the crystalline sulphur sites. An improved positive image is obtained if the sulphur coating solutions contain a polymer dissolved therein. The polymer may be polystyrene, polymethylmethacrylate, PVC, polystyrene-acrylonitrile, polyurethane, polybutadiene, polyethylene, polypropylene or polybutadiene.
Patent GB-1198024-A (GB)
Title: Automatically-Adjusting Belt-Tensioning Device for Revolving Endless Belts
IPC: B65G23/44
Filed: 1968-03-15
Abstract: 1,198,024. Drying paper with felts. J. M. VOITH G.m.b.H. 15 March, 1968 [18 March, 1967], No. 12758/68. Heading F4G. [Also in Division D2] A belt-tensioning device comprises: a belttensioning roll 1 mounted in bearings engaged by closed loop traction means 7, and is movable perpendicularly to the roll axis, the closed loop passing over two spaced rolls 8 and 9, one of which, 8, is mounted on a torsion-resistant, rotatable shaft; a drive transmission, 11, 12 connecting the shaft with a drive mechanism 14. Two independently operable drivers are associated with the drive mechanism, the first having limited movement, and controlling the belt tension; and the second, controlled by switching means actuated by the first driver on reaching its limit of movement, to restore the first driver to its initial position without also driving the traction means; the drive mechanism having two degrees of freedom: the first only allows drive to be transmitted from the second driver to the first driver, and is self-looking in the reverse direction; and the second degree of freedom allowing the first driver unimpeded movement between its limiting and initial positions. The first driver may operate with rectilinear motion, e.g. rod 29 driven by compressed air in chamber 17c, and the second driver may operate with rotary motion, e.g. air motor 24 driving shaft 31 and sprocket 30, which carries chain 15a. Shift finger 23a actuates dogs 21 or 21a at the limit of movement of member 29 to actuate air motor 24. The drive mechanism may also comprise a worm carried by a reciprocable shaft having at one end a piston head forming one side of a fluid pressure chamber, the shaft being rotatable about its axis by the second driver, the worm meshing with a worm-wheel driving the torsion-resistant shaft via transmission means (Fig. 2, not shown). A modification is described which allows the use of the device with the tensioning roll moving vertically.
Patent GB-1028102-A (GB)
Title: Piezoelectric crystal elements
IPC: H03H9/19
Filed: 1964-03-26
Abstract: 1,028,102. Piezo-electric crystals. A. D. BALLATO, and R. BECHMANN. March 26, 1964 [April 3, 1963], No. 12831/64. Heading H1E. A quartz crystal plate capable of simultaneous vibration in two thicknessshear modes has major surfaces parallel to the X-axis of the original crystal and inclined to the Z-axis at an angle # lying in the range -12‹50<SP>1</SP> and -34‹50<SP>1</SP>. It is stated that at an angle # = -23‹50<SP>1</SP> the two shear modes have equal frequencies and at other angles within the range the frequencies are unequal. According to the invention, the plate is excited by electrodes 12, 14 which provide an electric field in the plane of the plate and at an azimuth angle to the X-axis which determines the relative strength of excitation of the two modes. It is stated that for any value of # within the given range a value of # within the range 20 to 60 degrees may be found such that both modes are excited equally. The plate is not necessarily of rectangular form. The gap between the edges 18, 20 of the electrodes may be chosen to provide a desired shunt inductance.
Patent GB-1526375-A (GB)
Title: Method of identifying streaks on a web
IPC: G01N21/892
Filed: 1977-03-23
Abstract: 1526375 Detecting streaks on a web CIBAGEIGY AG 23 March 1977 [31 March 1976] 12902/76 Heading G1A A method of identifying streaks on a web comprises creating relative movement in a first direction between the web and an inspection station, scanning the web in a second direction and deriving from the signal thus produced a succession of digital signals each corresponding to a different element of web, feeding each digital signal into a different arithmetic register in a computer, repeating the scan during or after relative movement in the first direction, feeding each digital signal from an element to the corresponding arithmetic register of the earlier scan(s) and, after a predetermined number of scans, making the computer compare the contents of each register and of one or more of the other registers to see if the differences exceed a predetermined amount thereby indicating a streak. A first source of a frequency determined by scan requirements, web speed and resolution controls the scan rate, the digital signals being fed into register 112 and then transferred through register 13 into the arithmetic registers at a rate determined by a second frequency source. The digital signals may be obtained from a combination of the inspection signals with a noise signal.
Patent GB-993324-A (GB)
Title: Optical instrument for surgical use
IPC: A61B1/12
Filed: 1962-04-04
Abstract: 993,324. Endoscopes. AMERICAN CYSTOSCOPE MAKERS Inc. April 4, 1962 [April 14, 1961], No. 12925/62. Heading A5R. [Also in Division G2] A flexible endoscope for intestinal examination comprises elongated flexible means 12 including an elongated bundle 28 or 104 of a very large number of extremely fine lightconducting fibres mutually oriented at the ends 20 that an image presented by means 13 or 102 to the end face 32 or 108 is conducted to the end face 31 to be viewed through the eyepiece assembly 11 and a member 78 mounted externally of the means 13 or 102 can be inflated by way of means extending along the means 12. The air for inflation may pass along a tube 75 or just through the spaces around the bundle. The means 12 consists of from one to three stainless steel spirals 44, or alternatively a polyvinylchloride tube, from five to six feet in length and covered with a resilient sheath 79. The spirals or tube are fastened at their distal end to a connector 35 and at their proximal end to a sleeve 26. The sleeve 26 is joined by a collar 22 to a body 15 in which the fibrebundle endface 31 is held at 29 and in which the eyepiece 11 with its lenses 33 screws telescopically. The connector 35 holds the fibre-bundle end-face 32 at 34 (Fig. 2) and is connected flexibly by a metallic spring 45 to a tube 47 which carries a panoramic lens 49 and a lamp 61 surrounded by a fuzed quartz window 62 to illuminate the inside of the large intestine or other surface to be examined. Electrical connections for the lamp are provided through an axial spring 57 and an insulated wire 64 which connect with a source at the proximal end by way of split rings 38 insulated at 40. The annular image from the lens 48 is received by lenses 52 and 53 and focused on to the end face 32 of the bundle 28. Fig. 7 shows the distal end of an alternative embodiment with a lens 113 giving forward vision along the interior of the large intestine. The lamp is omitted and illumination is provided through an annular ring 106 of light-conducting fibres which surrounds the image-conducting bundle 104 and has its end-face 107 in contact with a glass cylinder 115 silvered inside and out which transmits the light around the lens system 112. This latter embodiment has a proximal end similar to that shown in Fig. 3 except that the annular fibres 106 are gathered into a single bundle and brought out through the side of the collar 22 to receive light from an external source. Specifications 993,322 and 993,323 are referred to.
Patent GB-1327005-A (GB)
Title: Method of manufacturing curved tube sections
IPC: B21D26/02
Filed: 1972-03-20
Abstract: 1327005 Making tube bends; fluid inflation J D B OSTBO 20 March 1972 [6 April 1971] 12926/72 Headings B3A and B3Q [Also in Division F2] Tube bends are made by joining together with inner and outer continuous joints two blanks to form a continuous tube, inflating the tube to desired cross-section and cutting it into sections. Circular or other blanks 1, 2 of metal are joined by welding and are inflated, with or without the external constraint of a die 9, 10, by gas or liquid pressure. Inflation may be performed at an elevated temperature which is at least partially provided by the inflation fluid. The tubes may be cut by sawing or by gas or electric equipment.
Patent GB-390008-A (GB)
Title: Improvements in hydraulic brake systems and piston devices therefor
IPC: B60T11/22
Filed: 1932-05-05
Abstract: 390,008. Fluid-pressure brakes; pistons. HYDRAULIC BRAKE CO., 2843, East Grand Boulevard, Detroit, Michigan, U.S.A. May 5, 1932, No. 12978. Convention date, May 6, 1931. [Class 103 (i).] In an hydraulic braking system comprising a master cylinder 3 containing a piston 9 manually actuated through a lever 6 to eject liquid to the brakes through a valve 21 and having a series of holes 47 extending therethrough covered by a packing cup 36 during the pressure stroke and in its retracted position, the holes 47 lead into a circular V-section groove 28 on the forward face of the piston, a ring-member 40 being seated in the groove to provide a flat bearing-surface for the packing-cup 36 during the pressure stroke of the piston thus preventing the cup material from being forced into the holes. During the return movement effected by the spring 42, there is a reduction of pressure in the cylinder 3 due to retardation of the flow of liquid by a valve 20 so that liquid from the reservoir is forced through the holes 47 and around the tapered base 39 of the packing cup which is thereby flexed inwardly. Excess fluid passes through an aperture 46 to the reservoir. The return movement of the piston is limited by a split ring 35 in a groove in the cylinder. The cover 11 of the reservoir contains a filling cap 12 comprising a doubleacting valve 13. In a modification the ring- member 40 is provided with pins which extend into the holes 47 and keep the member 40, approximately central should it be forced out of the groove 28.
Patent GB-1146911-A (GB)
Title: Method for the continuous casting of a molten metal
IPC: B22D11/06
Filed: 1966-03-24
Abstract: 1,146,911. Continuous-casting machines. A. R. WAGNER. 24 March, 1966 [27 March, 1965], No. 13086/66. Heading B3F. A method of continuously casting molten metal comprises continually producing a substantially vertical tubular metallic envelope, pouring molten metal into the upper open end of the envelope and moving the envelope and solidifying metal therein downwards at a rate corresponding to the rate of pouring and to the rate of production of the envelope. The envelope is formed by feeding metal sheet 2 from drum 5 and welding the edges together. The envelope and molten metal are guided by rollers 7, 8, the first set of rollers 7 being only slightly cooled by spray nozzles 4a and the subsequent rollers 8 being cooled to a greater extent by nozzles 4b, for example by steam, sufficient to preserve the strength of the envelope but without solidifying the molten core 9 so that axial rather than radial solidification is achieved. The metal of the envelope may be the same as or different to the molten metal and may be permanently retained on the solidified casting or be removed. Oxides, oxide solvents and inert gas degassing techniques may be used to prevent or ensure adhesion of the envelope to the casting as required.
Patent GB-1423434-A (GB)
Title: Image-reproducing devices
IPC: H04N3/32
Filed: 1973-03-19
Abstract: 1423434 Cathode ray tubes SONY CORP 19 March 1973 [23 March 1972] 13134/73 Heading H1D [Also in Division H4] In a television tube in which degradation of the image at regions of abrupt brightness change, due to the associated variation of beam spat size, is compensated for by modulating the scanning speed in the neighbourhood of such regions, a signal derived from the brightness signal variation (see Division H4) is applied either to the main, or to auxiliary, deflection plates, via one or more capacitors formed by opposed conductive layers on the outer and inner surfaces of the tube envelope. In the colour tube shown, an auxiliary deflection system consisting of plates 101A and 101B is disposed between the last of four successive grid electrodes 104G 1 , G 2 , G 3 , and G 4  and a converging deflection system consisting of two inner parallel electrodes 105I 1  and I 2  and two outer electrodes 105 01  and 105 02 . The second and third grids constitute a prefocus lens producing crossing of the beams at the centre of the main lens formed by the third and fourth grids, and subsequent passage of the two outer beams between the inner and outer plates of the converging deflection systems. An anode button 112 permits the application of a converging voltage to the inner plates of the converging deflection system, to one of the plates, 101B, of the auxiliary deflection system, and to the fourth grid 104G 4 , via the envelope conductive coating 108. The other plate 101A of the auxiliary deflection system is connected to the fourth grid through a resistor 80, and to an annular conductive film 71 on the inner surface of the envelope which forms a capacitor with an opposed film 72 on the envelope outer surface. In a modified arrangement, positive and negative scanning modulation pulses corresponding to brightness changes of opposite sense-may be separately applied to plates 101A and 101B, respectively, by the use of two oppossed envelope capacitors. In a further embodiment (Figs. 8 and 9, not shown), the auxiliary deflection system is dispensed with, and different fractions of the scanning modulation signal are applied, respectively, to plates 105 01 , 105I 1 , and 105I 2 , of the convergence deflection system, and three separate envelope capacitors of the type described above.
Patent GB-751157-A (GB)
Title: Method and means for granulating molten blast furnace slag
IPC: C21B3/08
Filed: 1954-05-05
Abstract: 751,157. Granulating slag. APPLEBY SLAG CO., Ltd. (Huttenwerk Rheinhausen Akt.-Ges.). May 5, 1954, No. 13171/54. Class 82(2). Slag is granulated by being poured into a container into the bottom of which is projected a stream of water whilst simultaneously subjecting the slag to the force of impinging jets of high pressure fluid directed onto the slag from orifices in the side and rear walls of the container. The container sides 3 are formed as a water jacket 2 having nozzles 4 formed in the inner wall. The nozzles may be integral with the wall or screwed into it. The main fluid flow is from a streamlined tapering nozzle 6. The bottom of the container may be detachable and the container may be made of separate parts secured together for ease of replacement of a cracked section.
Patent GB-131838-A (GB)
IPC: B65D25/00
Abstract: 131,838. Bey, H. March 3, 1919. Boxes made from special boxes; lined &c. boxes; corner joints; joints between box bottoms and bodies; fittings, internal; lids &c.-Metal cash and deed boxes &c. have the body, lid, and the inner plates that serve to hold and cover the attachment means of the handles, locks, &c. cut from sheet metal and bent and folded into shape, the corners being joined up by welding, and the parts being then separately coated with vitreous enamel and afterwards assembled. Fig. 5 shows the body part of a box having projections p and a depending part f for locking in position a cover plate dd, Fig. 8, to which plate the lock is secured. The lid bb, Fig. 6, has a plate cc, Fig. 7, formed with slots q, secured to it and serving to carry the hasp and catch of the lock and also to cover the attachment means of the lifting-handle. The lid is attached to the box by tubular hinges and a pin (not illustrated).
Patent GB-132985-A (GB)
IPC: B02C17/20
Abstract: 132,985. Watkins, W. G. March 25, 1919. Ball and like mills. -Grinding-bodies for use in tube mills consist of a short bar or tube which is of greater length than diameter, and is formed with straight or helical longitudinal ribs. The bodies may be formed from cast, rolled, or wrought metal, and may be hardened. The bodies may be of cruciform section, as shown for example in Fig. 5, or of trefoil section as shown in Fig. 6. Or, as shown in Fig. 7, a body with longitudinal ribs may be twisted about the longitudinal axis.
Patent GB-1461924-A (GB)
Title: Process for the manufacture of unsaturated esters of carboxylic acids
IPC: C07C69/14
Filed: 1974-03-26
Abstract: 1461924 Unsaturated esters of carboxylic acids HOECHST AG 26 March 1974 [26 March 1973] 13330/74 Heading C2C [Also in Division B1] A process for the preparation of an unsaturated ester of a carboxylic acid comprises reacting an olefine or cycloolefine with a carboxylic acid and oxygen in the gaseous phase in the presence of a supported catalyst containing at least one noble metal salt or noble metal of the VIIIth group of the periodic system and optionally gold or gold salt and, as activator, at least one potassium salt and, if gold or a gold salt is not present, at least one cadmium salt and/or at least one bismuth salt, the presence of a cadmium and/or bismuth salt being optional if gold or a gold salt is present, at a temperature in the range from 100 to 250 C. and at a pressure in the range from 2 to 20 atmospheres, wherein the total noble metal content of the catalyst and its support is in the range of from 1À3 to 3 wt. per cent and the weight ratio of the metal fraction of each individual activator to the total noble metal content is from 0À5 : 1 to 1À26 : 1. Examples describe the production of vinyl acetate and allyl acetate.
Patent GB-873058-A (GB)
Title: Improvements in and relating to maximum and minimum thermometers
Inventor: DREW MORICE JAMES
IPC: G01K5/20
Filed: 1959-04-20
Abstract: 873,058. Thermometers. CLARITAS Ltd. April 20, 1960 [April 20, 1959], No. 13383/59. Class 97(3) A maximum and minimum thermometer of the type in which a U-tube has its limbs horizontal in use and vertical when setting the indices, is pivoted at 6 to a mounting plate 2 secured to a wall or other support and stops 4, 5, are provided to hold the thermometer in its two extreme positions. As shown, the stops 4, 5, are pressed out tongues on the plate 2. Alternatively, a ball catch or spring finger is provided on either the scale-carrying plate 1a or the plate 2 to engage either of two depressions in the plate 2 or plate 1a respectively.
Patent GB-1299356-A (GB)
Title: Improvements relating to pressure fluid units
Inventor: LOVE DOUGLAS STANLEY
IPC: F16J10/02
Filed: 1969-03-14
Abstract: 1299356 Piston rings; seals EMI Ltd 13 March 1970 [14 March 1969] 13433/69 Headings F2B and F2T The piston 2 or cylinder 1 of a pressure fluid unit is fitted with an elastomeric sealing ring 4 and, axially separated from the elastomeric ring on one or both sides, a metal ring 5, 6 such that in operation the elastomeric ring is protected against shock loading. The elastomeric ring 4 may be an 0-ring and the metal rings 5, 6 may be split rings.
Patent GB-1495427-A (GB)
Title: Doublerow rolling bearing and a method of assembling the same
IPC: F16C33/40
Filed: 1975-04-02
Abstract: 1495427 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 2 April 1975 [3 April 1974] 13499/75 Heading F2A To facilitate the assembly of a double-row rolling bearing in which the cages can be introduced into the space between the races only at one axial end of the bearing, the cage adjacent the other axial end is comprised of a plurality of part-annular portions 8. The method of assembly comprises (a) eccentrically displacing one bearing race relative to the other, (b) introducing from said one axial end the elements of each row through the space provided between the races, (c) retaining the elements of the row 5 in one half of the bearing by an assembly device, (d) distributing the elements of the row 4 so that they are disposed in the other half of the bearing, (e) introducing the cage portions 8 consecutively through the free space provided between the races so that the elements of row 4 are retained thereby, (f) introducing between the races a cage 7 for the elements of row 5. The cages can be snap cages of plastics or metal and the cage 7 may also comprise two or more portions.
Patent GB-1459304-A (GB)
Title: Process for the alkaline cleaning pre-treatment of the surface  of steel strip before annealing
IPC: C23G1/19
Filed: 1974-03-27
Abstract: 1459304 Alkali cleaning of steel surfaces HENKEL & CIE GmbH 27 March 1974 [28 March 1973] 13501/74 Headings C7B and C7E Steel to be annealed is surface cleaned, with or without use of an electric current in an aqueous bath at pH above 13 containing 0À5-35 g/l of at least one silicate calculated as SiO 2  and 0À05-5 g/l of at least one alkanolamine having at least 3 OH groups in the molecule at a temperature from 50-100‹C. The bath may contain NaOH or KOH as alkali, and the silicate may be of alkali metal and have an Na 2 O or K20 to SiO 2  ratio of 1 : 0À5 to 1 : 4 e.g. sesqui and/or metasilicates. Suitable amine compounds are triethanolamine, tri-n-(or iso)-propanolamine and N, N, N', N'-tetrakis-(2- hydroxyethyl)-ethylene diamine. Optional ingredients are: 0À5-10 g/l gluconic or heptagluconic acid and/or salt or a complex boric acid; 0À1-10 g/l alkali metal phosphate e.g. pyro- or polyphosphate and 0À03-1 g/l of a wetting agent e.g. a propylene oxide condensate with a polyol or polyamine or end-stopped ethylene oxide condensates with alkyl phenols. For electrolytic treatment a c.d. of 3-25 A/dm<SP>2</SP> is suitable using alternating current. An electrolytic treatment may immediately follow a non-electrolytic treatment, both using the same bath.