baber/WOPTO huggingface dataset:
Patent GB-1395862-A (GB)
Title: Manufacture of chemical-resistant polyarylate films and coatings
IPC: C08G63/682
Filed: 1973-02-22
Abstract: 1395862 Polyarylate films POLITETECHNIKA WARSZAWSKA 22 Feb 1973 [15 March 1972 27 April 1972] 8631/73 Heading B5B [Also in Divisions B2 and C3] A film of a polyarylate in which a carbon atom in the main chains bonded to two aryl rings is connected by a double bond to a CCl 2  group is subjected to a temperature of 135 to 320 C. for a period of 1 to 10 hours. The film may be made by dissolving the polyarylate in an organic solvent and evaporating the solvent from the solution. The polyarylate used may be obtained by the polycondensation of a chlorobisphenol or of a mixture of a chlorobisphenol with a bis- (hydroxyaryl)alkane and a dicarboxylic acid chloride or a dicarboxylic acid ester, the chlorobisphenol having a group in which a carbon atom between two aryl rings with or without substituents is connected by a double band to a CCl 2  group. Alternatively a suitable chlorobisphenol diester or mixture of such diesters may be polycondensed with a diester of a bis-(hydroxyaryl)alkane and a dicarboxylic acid. Specified bis-(hydroxyaryl)alkanes include bis-(hydrophenyl)alkane, bis-(hydroxynaphthyl)alkane; phthalein and anthrahydroquinone may alternatively be used in admixture with the chlorobisphenol or its diester. Preferred chlorobisphenols include 2,2-bis-(4-hydroxyphenyl)1,1- dichloroethylene, 2,2 - bis - (3,5 - dichloro - 4- hydroxyphenyl) - 1,1 - dichloroethylene, 2,2- bis - (3 - methyl - 4 - hydroxyphenol) - 1,1- dichloroethylene and 2,2 - bis - (4 - hydroxynaphthyl) - 1,1 - dichloroethylene. A preferred mixture of chlorobisphenol with bis-(hydroxyaryl)alkane is that of 2,2-bis-(4-hydroxyphenyl)- 1,1-dichloroethylene with 2,2-bis-(4-hydroxyphenyl)propane. A polyarylate made by the interfacial polycondensation of 2,2 - bis - (4 - hydroxyphenyl) - 1,1 - dichloroethylene or its mixture with 2,2 - bis - (4 - hydroxyphenyl)propane and tere- or isophthalic acid chlorides is especially preferred. Treatment enhances the resistance of the films to chemical reagents, especially to chlorinated aliphatic hydrocarbons.
Patent GB-969264-A (GB)
Title: Improvements in or relating to drives for spindles of spinning and twisting frames
IPC: D01H1/241
Filed: 1962-03-06
Abstract: 969,264. Casings for spindle driving apparatus. SKF KUGELLAGERFABRIKEN G.m.b.H. March 6, 1962 [March 7,1961], No. 8646/62. Heading D1D. In a spinning or twisting machine in which the wharves 8<SP>1</SP> of a group of spindles 8 are driven by an endless belt 18, the belt 18,the wharves 8<SP>1</SP>, the belt tensioning members 16 and 19 and spindle braking members 23 are housed in a closed casing 3, 4, 24 and 47. In the region of the spindles the casing comprises an integral unit made up of the spindle rail 3, a flange 4 and an outer wall 4<SP>1</SP> together with a removable upper cover 24. In other forms the outer wall 4<SP>1</SP> together with the horizontal floor of the casing may be detachable from the spindle rail and in one such form the detachable portion is of sheet metal covered with a soundabsorbing material. As shown in Fig. 2, the main tensioning of the belt 18 is effected by rollers 19 which are guided to move parallel to the central plane of the machine. The rollers are mounted on a common member 45 which engages a screw arrangement 46 so that adjustment of the roller position is passible. The section of spindles and their associated members adjacent the roller 19 on each side of the machine is removable to allow the rollers to move in the belt slackening direction. A removable cover 47 is provided for this apparatus. The belt is also tensioned, adjacent each spindle by a roller 16 which is carried on a resilient holder 13 mounted on the wall 4<SP>1</SP>. Adjus table spring means 13<SP>1</SP>, 13<SP>11</SP> may also be provided to urge the holder towards the belt. In other forms in which the holders 13 are mounted on rails secured to the wall 4<SP>1</SP>, the rails may be adjustable relative to the wall or the holders may be adjustable relative to the rail, in either cases to adjust the position of the roller 16. Each spindle 8 may be individually braked by a friction member 23 movable into engagement with the spindle wharve 8<SP>1</SP> by depression of a knob 21<SP>1</SP>. The knob 21<SP>1</SP> is outwardly urged by a spring 22 and a flange 41 on the shaft 21 of the knob is provided to limit the outward movement. In other forms the shaft 21 is mounted on a rail secured to the inside of the wall 4<SP>1</SP>. To prevent spindles being accidently removed a rail 11 is provided within the casing to engage a wharve 8<SP>1</SP> should the spindle be lifted. A flange 49 having slots 50 is provided on each spindle adjacent the casing so that air current created prevents dust entering the case through the spindle aperture 10.
Patent GB-833483-A (GB)
Title: Improvements in or relating to cathodic protection of metal structures
Inventor: RANDALL JACK HORACE PERCIVAL
IPC: C23F13/02
Filed: 1956-03-21
Abstract: 833,483. Preventing corrosion. HUGHES & CO. Ltd., F. A. March 5, 1957 [March 21, 1956], No. 8796/56. Class 123(1) Consumable anodes for the cathodic protection of ships' tanks are secured to the underside of the top of the tank without the use of scaffolding by providing in the tank top 10 a small bolt hole 11 around which is welded a collar 12, the anode assembly consisting of a bolt 13 of slightly less diameter than the hole 11 to the lower end 14 of which is secured a tube 15 connected to an anode block 29 of, for example, magnesium alloy. Welded to the tube 15 are four arms 18 supporting a steel plate 20. The assembly is lowered through the normal tank hatchway to the bottom of the tank. The lowering cable is then detached, lowered through the hole 11 and secured to the bolt 13. The anode assembly is then hauled up until the bolt 13 projects through the hole 11 when a nut 22 which has been threaded on to the cable is screwed down on to the bolt to pull the plate 20 into contact with the tank top 10. The projecting end of the bolt is concealed by a cover 25. Specifications 765,085 and 833,484 are referred to.
Patent GB-609876-A (GB)
Title: Improvements in systems for selecting perforated cards
IPC: G06K21/02
Filed: 1946-03-22
Abstract: 609,876. Statistical apparatus. DESAUBLIAUX, R. R. M. March 22,1946, No. 8938. Convention date, June 7, 1945. [Class 106 (i)] In apparatus for selecting perforated record cards of the type described in Specification 456,951, selector rods for all the selector holes are always in position in a sliding-rod carrier and are selectively operated to effect a desired card selection whilst maintaining the other rods inoperative. The selector rods t1 ... t5, Fig. 4. are provided with fixed bosses b1, ba1, &c., and are supported in perforated plates 3, 14, the plate 14 forming part of an assembly P2 slidable away from assembly P1 by a handle 9, Fig. 2. A slidable carriage 21, spring-urged to the position shown in Fig. 4, is pushed forward to operate the selector rods, Fig. 2, by a cam 24 operated by a handle 27. The carriage 21 comprises vertical slides 31, Fig. 5, adapted to receive a perforated plate p1 having stops 33 secured in selected perforations according to the desired card selection. Upon movement of the carriage 21 by the handle 27, those rods tl ...t5 engaged by stops 33 are pushed along and their bosses ba1 . . . ba5 engage the plate 14 and push the assembly P2 away from P1. While assemblies P1, P2 are close together, cams C1 and C2 on each, Fig. 4, serve to hold locking shutters 5 and 12 clear of the bosses b1, ba1, &c. As the assembly P2 leaves P1, however, the cams C1, C2 allow the shutters to be lowered and thus prevent subsequent movement of unselected rods, while ensuring positive movement of selected rods. The carriage 21 comprises a plurality of pairs of slides 31, Fig. 5, for further plates p2, p3, thus enabling these to be slid laterally, by a handle 30a, into operative position.
Patent GB-737418-A (GB)
Title: Improvements in or relating to vice jaw attachment for hacksaw machines
Inventor: WARD ERIC HOWARD
IPC: B23Q3/00
Filed: 1953-03-31
Abstract: 737,418. Vices. PROTOTYPE DEVELOPMENTS, Ltd. Feb. 22, 1954 [March 31, 1953], No. 8959/53. Class 61. An inset clamp, tor tne vice of a nacksaw machine, comprises a pair of elongated auxiliary jaws adapted for insertion lengthwise between the jaws of the vice and of such a length as to project beyond the jaw ends, the auxiliary jaws being provided with longitudinal grooves in the inner front end portions to receive one end of a piece of stock, and the rear ends being provided with means to adjust the transverse spacing of the jaws. As shown the outer surface of each auxiliary jaw 1, 2 is provided with transverse abutments 5, 6 which provide a gap to receive one of the vice jaws. The rear ends of the jaws are connected by an adjustable screw 18 carried by the jaw 2 and passing through a threaded hole in the jaw 1, the axis of the hole being perpendicular to the inner face of the jaw. The screw may be graduated to predetermine the spacing between the jaws. The gripping surface of each jaw is provided with a longitudinal V-groove 11 flanked on each side by a shallower and narrower groove 13. A shoulder 14 is provided at the inner end of the groove 11, a converging flute or groove 15 extending rearwardly from the shoulder.
Patent GB-616875-A (GB)
Title: Improvements in or relating to shuttles for looms
IPC: D03J5/00
Filed: 1946-03-23
Abstract: 616,875. Shuttles. SANDERSON, E. P., SUCHY, K. T., and SMITH, R. C. March 23, 1946, No. 9003. [Class 142(iii)] A metal coating is deposited (preferably as in Specifications 572,071 or 597,256, [both in Group XXXVI]) on a shuttle made of wood or of laminated wood bonded by synthetic resin. A smallware shuttle may be coated all over: an ordinary shuttle on the bottom and ends only.
Patent GB-667521-A (GB)
Title: Improvements in balanced phase detectors
IPC: H04N5/12
Filed: 1950-04-12
Abstract: 667,521. Phase measuring. BRITISH THOMSON-HOUSTON CO., Ltd. April 12, 1950 [April 16, 1949], No. 9018/50. Class 37. [Also in Group XXXV]  A phase discriminating circuit comprises two rectifiers 17, 19, Fig. 2, connected inseries opposition, to which one signal is applied from 57 in push-pull and a second signal is applied from 14, 15 in parallel, the terminal 14 being connected to the inner electrodes of the rectifiers, and the other terminal being connected to the outer electrode of rectifier 19 over condenser 20 and to the outer electrode of rectifier 17 at the point where the first signal is connected. The invention is described with reference to a television receiver in which the scanning oscillation is synchronized by synchronizing signals. The scanning generator comprises a condenser 45 which is charged slowly over resistances 44, 46, 47 and discharged rapidly bv valve 40 connected to operate as a cathode tuned Hartley oscillator. The scanning oscillations are applied over valve 52 and fed from transformer 57 to the cathode-ray tube and to the phase discriminator over resistance 58 and condenser 59, for comparison with the synchronizing signals applied at 14, 15. Condenser 20 acquires a charge dependent on the phase difference and thus varies the impedance of valve 30 to vary the frequency of oscillator 40 and thus vary the initiation of the scanning voltage. A differentiating network 26, 27 is provided to eliminate hunting. Operation of phase discriminator.-The secondary winding 57 provides pulses 61, Fig. 7a, during fly-back to the resistance capacity combination 58, 59 to develop a saw-tooth voltage 62, Fig. 7b. During the growth of this voltage from a negative value to zero, diode 17 conducts so that a saw-tooth voltage 63 is produced across resistance 18; similarly, a saw-tooth voltage 64 is produced across resistance 21 by the action of diode 19 during the period when the voltage from 58, 59 is growing from zero to positive. Normally, these two saw-tooth voltages have equal and opposite D.C. components. When synchronizing pulses are applied at 14, 15, if they occur at the mid-points of the fly-back of saw-tooth voltages 63, 64, the D.C. components remain equal and opposite, i.e. the ordinates D1, D2, Fig. 7e remain equal. But, if the synchronizing pulses occur to one side or the other of the mid-point of the fly-back, the ordinates D1, D2 become unequal, Figs. 7f, 7g, and condenser 20 acquires a charge whose sign is dependent on the lag or lead of the synchronizing pulses over the scanning voltage, and whose magnitude is dependent on the phase difference.
Patent GB-1105172-A (GB)
Title: Improvements in and relating to electrical rotary machines
IPC: H02K23/04
Filed: 1965-03-03
Abstract: 1,105,172. Dynamo-electric machines with permanent magnets. COMPAGNIE ELECTROMECANIQUE. 3 March, 1965 [4 March, 1964], No. 9059/65. Heading H2A. A direct current rotary machine comprises a stator and rotor arranged side-by-side, one comprising an annular permanent magnet 3, axially magnetized with alternate polarities, the other comprising a slotted ferromagnetic disc 1 having a drum-type winding disposed in the slots so as to leave a peripheral slotted annular part adjacent the magnetic poles,. free from winding. Fig. 4, shows an end elevation with different sections shown in each quadrant. The armature 1 has slots 13 shaped so as to facilitate machine winding of wave-wound conductors 10 which are connected to a commutator 11. The flux from any N pole of the magnet 3 passes radially along the teeth of the armature 1, across the windings 10 and back via the armature teeth to the adjoining S pole. The armature 1 may be sandwiched between two annular magnets 3 (Fig. 3, not shown), like poles facing one another. The armature 1 may be fixed relative to a rotating field 3.
Patent GB-179044-A (GB)
Title: Improvements relating to steam superheaters
IPC: F22B37/16
Filed: 1921-03-24
Abstract: 179,044. Williams, O. R. March 24, 1921. Superheating tubes with external ribs and coverings.-The covers which are fitted closely over the spearheads of superheater tubes to protect them from the action of the hot furnace gases are provided with ribs c to increase their heating-surface and efficiency. The cover may be made in two castings B bolted together by bolts d over the spear head. The ribs care thickest near the base and are arranged in line parallel with the flow of gases. The bolts d may be replaced by countersunk screws to prevent obstruction of the furnace gases.
Patent GB-109036-A (GB)
Title: Improvements in Mechanical Charging Apparatus for Roasting or Calcining Furnaces.
IPC: F27D3/10
Filed: 1914-05-02
Abstract: 109,036. Akt.-Ges. fur Zink-Industrie vorm. W. Grillo, and Schefczik, W. May 2, 1914. Charging. - A mechanical charging-apparatus for roasting and like furnaces comprises an endless conveyer to which the materials are fed by an adjustable hopper having a movable delivery shoot. The hopper k and shoot l are pivoted on an axis p, and their inclinations can be adjusted by turn-buckles s, t on the suspending-rods. Delivery of material from the hopper is controlled by a gate n, and the feed is equalized by a crushing- roller m, mounted either in front of or behind the gate. The material is delivered to a conveyer g, Fig. 2, moving over the roof of the furnace, and is fed into the furnace through a funnel opening, in which is mounted a vertically adjustable rotatable ribbed cone h. When the cone is lowered to its full extent, the feed is cut off.
Patent GB-127715-A (GB)
Title: Improvements in and relating to the Manufacture of Sulphate of Ammonia.
Inventor: LINDER SAMUEL ERNEST
IPC: C01C1/24
Filed: 1918-06-03
Abstract: 127,715. Linder, S. E. June 3, 1918. Ammonium sulphate.-Neutral ammonium sulphate is produced by neutralizing the acid usually present in the solid sulphate by a small proportion of a fixed alkali, an alkaline earth, or a carbonate of an alkali metal or of an alkaline-earth metal. The neutralizing-agent, which may be in the powdered form or in solution, is added'to the dry or moist ammonium sulphate and is intimately mixed therewith.
Patent GB-742669-A (GB)
Title: Worm extrusion press for working ceramic material
IPC: B28B3/22
Filed: 1953-04-02
Abstract: 742,669. Kneading appliances. SOESTFERRUM APPARATEBAU GES. April 2, 1953 [April 12, 1952; March 18, 1953], No. 9154/53. Class 86. [Also in Group V] The screw chamber 2, Fig. 1, has an extension 3 the interior diameter of which is decreased stepwise to provide at least two shoulders 8, 9, facing the feed, each shoulder being of a convex rounded form in cross-section and terminating abruptly at its junction J with the adjacent larger-diameter passage portion. These shoulders are stated to knead the material and form it into a homogeneous mass. Another shoulder 10 is formed on the mouthpiece 4. The radius of curvature of each shoulder should be at least half the difference in diameter between adjacent portions of the extension; e.g. the radius of curvature of shoulder 10 may be half (b-c); and should not exceed two-thirds of said difference. The lengths L, L<SP>1</SP>, L<SP>11</SP> of the chambers formed by the shoulders are equal to each other. Fig. 2 shows a machine for making pipes, in which the core 14 is complementarily stepped. In a modification of Fig. 2, Fig. 4 (not shown), a smaller stepped core is disposed within the mouthpiece 4 and is joined to the screw by a chain. Specification 6110/09, [Class 87(ii)], is referred to.
Patent GB-454241-A (GB)
Title: Improvements in or relating to casting aluminium magnesium alloys
IPC: B22D21/00
Filed: 1935-03-25
Abstract: 454,241. Mould materials. ALUMINIUM, Ltd., Canada Life Building, Toronto, Canada.- (Assignees of Paine, R. E.) March 25, 1935, No. 9306. Convention date, Nov. 20, 1934. [Class 83 (i)] Green sand moulds, for castings of aluminium alloys containing up to 15 per cent of magnesium, have ammonium fluoride incorporated therewith to prevent porosity of the casting. From 1 to 10 per cent of the salt. may be mixed with the sand or the mould may be sprayed with a solution in methyl or ethyl alcohol. The treatment is most effective with castings containing 4 to 15 per cent of magnesium.
Patent GB-621842-A (GB)
Title: Improvement in method of making screens
IPC: H01J19/00
Filed: 1945-04-13
Abstract: 621,842. Electrolytic manufacture of screens. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 13, 1945, No. 9334. Convention date, April 14 1944. [Class 41] [Also in Groups XV, XX, XXII and XL (a)] A fine-mesh screen for use in an image orthicon television transmission tube is made by sputtering metal onto a matrix grooved with the desired pattern, removing the metal from the ungrooved portion of the matrix, immersing in a plating bath, subjecting the bath to a plating current until the metal in the grooves has been built up by plating, washing, and removing the formed screen from the matrix. Preferably the sputtered metal is palladium, the plating metal is copper, and the removal of metal sputtered outside the grooves is performed by rubbing with a rubber-gloved finger dipped in water. The Specification as open to inspection under Sect. 91 comprises also : (a) producing a finepatterned or meshed screen by exposing a photographic plate (composed of engraver's enamel on a metal base on a glass plate), with a master-opaque (a glass plate grooved and filled with palladium by sputtering) superimposed thereon, to ultra-violet light, developing the exposed plate to produce an intaglio surface having grooves penetrating to the metal base, electro-plating to fill the grooves with metal, and removing the metal base and the enamel by a stripping solution ; (b) producing a fixed-picture-generating or monoscope target by coating a silver plate with engraver's enamel, exposing it to ultra-violet light through a reversed positive of the desired picture, developing and removing unexposed enamel, copper-plating the silver thus . exposed, removing the remaining enamel, and finally etching with a solution which attacks silver rapidly and copper slowly so as to sharpen the pattern. This subject-matter does not appear in the Specification as accepted.
Patent GB-117478-A (GB)
Title: Improvements in Terminal Box Electrical Cable or Conductor Insulators.
IPC: H02G15/06
Filed: 1917-06-29
Abstract: 117,478. British Insulated & Helsby Cables, Ltd., and Blades, R. W. June 29, 1917. Insulators.-Electric conductors are led from a terminal box through an insulator comprising a neck or sleeve portion 4 and a weather-shield portion or portions 5, 5<x> having a relatively large' diameter and of mushroom, disk, or like form. The shield portion may be formed integral with the sleeve portion. Specifications 29783/12 and 103,435 are referred to.
Patent GB-1521640-A (GB)
Title: Plant pots
IPC: A01G9/10
Filed: 1977-03-07
Abstract: 1521640 Plant pots W L GEORGI 7 March 1977 11 March 1976] 09455/77 Heading A1E A plant pot has an aperture 12 in its bottom with an upstanding lip 13 providing an annular reservoir 14, a removable disc 15 supporting soil in the pot and having a run 17 sealingly engaging the lip 13 to prevent water in the reservoir escaping through the aperture. Notches 16 in the periphery of the disc and clearance between the periphery and the side of the pot permit passage of water between the soil and reservoir.
Patent GB-558450-A (GB)
Title: A cathode-ray tube suitable for use as an indicator
IPC: H01J31/14
Filed: 1942-07-08
Abstract: 558,450. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., COCKERELL, C. S., ESTERTON, M., and YOUNG, A. J. July 8, 1942, No. 9516. [Classes 39 (i) and 40 (v)] A cathode-ray tube for use as an indicator in direction finding has a long cathode K between two similar control electrodes D which are used to swing the formed beam in a horizontal plane. These three are placed between two screen electrodes C connected to a backing U-shaped electrode S. In planes at right angles to that containing the electrodes K, D are two parallel electrodes T and DP ; the former has a coating of incandescible carbon or luminescent material which gives an indication of the length of the beam which varies as it is deflected down by the electrode DP. When used to compare signals derived from aerials of different directional properties, a double coil CC, Fig. 2, coupled to the aerials is connected through switching units SU1, SU2 to an amplifier R which is connected to plate DP. A switching oscillator SU3 operates the units SU1, SU2 alternately, and also supplies deflecting voltages to rods D so that the beam is deflected alternately to right and left. When the lengths of the two traces TL, TR are equal, the voltages supplied by the aerials are equal.