baber/WOPTO huggingface dataset:
Patent GB-1221657-A (GB)
Title: Preparation of moulding material starting from polyethylene terepthalate
Inventor: CONIX ANDRE JAN
IPC: C08L67/02
Filed: 1967-06-29
Abstract: 1,221,657. Moulding materials. GEVAERTAGFA N.V. 27 June, 1968 [29 June, 1967], No. 30139/67. Heading C3R. A moulding material is prepared by mixing polyethylene terephthalate, of inherent viscosity of at least 0.65 dl/g. (at 25 C. in 60 : 40 volume ratio phenol : sym-tetrachloroethane), with (a) 0À1-10% by weight based on the polyethylene terephthalate of a polyester whose polyme melt temperature is at most 150 C. and whose inherent viscosity is at least 0À3 dl/g. and with (b) 0-1% by weight based on the polyethylene terephthalate of an inert mineral solid substance of average particle diameter less than 10 Á. Preferably polyethylene terephthalate having the required properties is obtained by re-polycondensation of polyethylene terephthalate, preferably film scrap. The re-polycondensation may be a solid phase polymerization reaction, and this may be carried out by heating powdered polyethylene terephthalate in a fluidized bed in an inert gas at about 200 C., or by subjection to high temperature vacuum treatment. Preferably, film scrap in chips of at most 10 sq. cm. is heated at 200-240 C. at 0À1-5 mm./Hg pressure for 2-20 hours. The repolycondensation may also be executed in the melt in a high vacuum multi-shaft reaction screw. The polyester may be polyneopentyl isophthalate, polyneopentyl terephthalate, polyethylene sebacate, polyethylene phthalate, polyethylene isophthalate, polyhexamethylene adipate, polypentamethylene isophthalate, and the polyesters of 2,2-diethyl-propane-1,3-diol and isophthalic acid, of 1,4-cyclohexanedimethanol and adipic acid, and of 1,4-cyclohexanedimethanol and isophthalic acid. The inert solid may be talcum, alumina, gypsum, silica, calcium carbonate, titania, dolomite, aluminium silicate or calcium silicate. The moulding material may also be mixed with glass fibres during its working up.
Patent GB-153003-A (GB)
Title: A method of operating vacuum tubes
IPC: H05B41/232
Filed: 1920-10-25
Abstract: 153,003. Schaeffer, E. Oct. 24, 1919, [Convention date]. Vacuum tubes; R÷ntgen-ray tubes.-In a tube according to Specification 153,002, two internal electrodes are provided. These may be connected to the supply mains of a single-phase system, the external conducting liquid being connected to one of the mains or earthed; or the two internal electrodes and the liquid may each be connected to one phase of a three-phase system. The invention is particularly applicable to lamps for use on lowvoltage or low-frequency circuits.
Patent GB-414342-A (GB)
Title: Improvements in and relating to developing tanks for photographic films
IPC: G03D13/02
Filed: 1932-10-27
Abstract: 414,342. Developing - apparatus. BERCHT, H., Reifnitz-on-Worthersee, Karnten, Austria. Oct. 27, 1932, No. 30147. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 29, 1932]. [Class 98 (ii).] A vessel for developing roll films 23 shown in edgeview in the plan Fig. 1 comprises a number of intercommunicating parts A, B, C, D, with narrowed mouths and a central disc 4 for retaining the film. The upright walls may be made outwardly inclined, and inlet and outlet tubes 13, 14 may be provided. A container for developing flat films; shown in plan, Fig. 3, has pairs of curved ribs 15 between which the films 21 are retained in an upright position. 13 and 14 are inlet and outlet tubes.
Patent GB-305705-A (GB)
Title: Improvements in and connected with steam or other gaseous fluid supply or controlling valves or valvular apparatus
IPC: F16K31/363
Filed: 1927-11-10
Abstract: 305,705. Bruce, W. J. W. Nov. 10, 1927. Valves controlled by pilot or relay valves.-A valve device for controlling the supply or release of fluids and particularly applicable for use on board ship as for example for controlling the supply to steam or compressed air whistles or sirens has the pilot valve casing 20 mounted on an extension of one of the connecting flanges 12 of the main casing 1 and is coupled to the main conduit and actuating cylinder by passages 10, 15, 15x and 16 formed, as by drilling, in the flange and body of the main casing. The main valve 3 is opened by a piston 5 subject to inlet pressure admitted through an auxiliary valve 9. The auxiliary valve co-operates with a seat formed about the passage 15 in the flange 12 and is normally held to its seat by a spring 23 arranged between an adjustable abutment 24 and a piston 18 on the valve spindle 25, which piston has a stepped part 21 and a sealing collar 22. The pilot valve may be arranged so that it lifts automatically with abnormal inlet pressure or it may be opened by a hand lever 8 pivoted at 26. An annular spring plate 28 may surround the main valve spindle 4 to prevent leakage into the actuating cylinder and an automatic drain valve may be fitted to drain condensation water from the main casing and the actuating cylinder. Specification 17058/95, [Class 13, Bells &c.], is referred to.
Patent GB-994054-A (GB)
Title: Improvements in or relating to hydropneumatic suspensions
Inventor: CHAMBERS HARRY DONALD
IPC: B60G17/04
Filed: 1962-03-26
Abstract: 994,054. Road vehicle suspensions. EATON AXLES Ltd. March 26, 1962, No. 30157/64. Divided out of 994,053. Heading B7D. The control arm E of an axle A associated with a suspension unit D is connected to a hanger bracket F by means of a pin 124 upon which is slidable a sleeved bush 121, the bracket F comprising an end wall 129, side walls 130 and 131, and a cap 132 by means of which and by means of a horizontal member 126 the pin 124 is retained. A modified form of rubber bush connection is shown in Fig. 4 and the suspension device is described in connection with front and rear axles and in connection with a modified form of suspension arm, Fig. 5. In a tandem axle construction, Figs. 7 and 9, a swinging arm E is connected to a bracket F by means of the spherical rubberbushed joint shown in Fig. 9, the arm E also being connected to a suspension unit D and to a balance beam 160 upon which the axles 161 are mounted.
Patent GB-849610-A (GB)
Title: Improvements in measuring dial gauges
IPC: B25D5/02
Filed: 1958-09-22
Abstract: 849,610. Dial-gauges; indicating-apparatus. DRAKE, S. Oct. 8, 1958 [Sept. 22, 1958], No. 30160/58. Classes 106 (2) and 106 (4). A measuring dial gauge comprises a housing f, and two dials e<SP>2</SP>, one on each opposite face of the housing f, and a pointer e<SP>1</SP> co-operating with each dial, and operated by the feeler a.
Patent GB-281262-A (GB)
Title: Improvements in or relating to electron emitting cathodes
IPC: H01J9/04
Filed: 1927-11-10
Abstract: 281,262. Radiotechnique. Nov. 26, 1926, [Convention date]. Drawings to Specification. Vacuum tubes.-A thermionic cathode consists of a core of tungsten or other refractory metal with an adherent sheath of insulating material such as magnesia, baryta, strontia, or lime. which is applied by heating the wire in the material, an electron-emitting metal or compound such as thoriated tungsten being mounted on the sheath, for example in the form of a helical wire with close or open turns disposed along the length or at the centre of the sheath, or of a ring at the centre. The electron-emitting wire may be connected with the core wire or with a separate lead. The melting point of the sheath is lower than that of the core, and higher tLan the temperature at which electrons are emitted by the helix or ring.
Patent GB-520384-A (GB)
Title: Improvements in or relating to injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1938-10-19
Abstract: 520,384. Injection pumps. BOSCH GES., R. Oct. 19, 1938, No. 30211. Convention date, Oct. 19, 1937. [Class 102(i)] [Also in Groups XXIX and XXXIV] In a petrol or other injection pump for internal combustion engines in which a cam shaft 3 is located above the oil level 5 in a lubricating oil reservoir 6 and is supplied with oil by means of a delivery pump driven by the injection pump, the delivery pump 9 is disposed within the oil reservoir and is associated with a second delivery pump 10, the inlet end of the suction pipes 11, 15 of both of which are located in said reservoir. The pumps 9, 10 are preferably of the toothed wheel type disposed side by side at one end of the cam shaft 3. Surplus oil from the cam shaft chamber 13 returns through an overflow pipe 14 into the reservoir. The suction pipe 15 of pump 10 extends lower than the suction pipe 11 of the pump 9, and the delivery pipe 18 of pump 10 is connected to a booster or servo-motor 17, the rod 25 of which operates rack means 26 to rotate the pistons 2 of the injection pump 1 and thereby vary its delivery. The servo-motor 17 is controlled by a slide valve 20 which is adjusted by means of a lever 27 pivoted approximately at its mid-point 28 on a rod 29 connected to an aneroid or like pressure-sensitive device 30 which acts against the action of a spring 31. The lower end of the lever 27 may also be operated by a spring-loaded diaphragm 32 in a chamber 35 connected by a pipe 33 to the induction pipe of the engine. The delivery pipe 18 of pump 10 is also connected by a pipe 38 to a leakage barrier 39, 40, 41 for lubricating and sealing each of the pistons 2, any oil trickling upwards escaping through a port 43 back into the reservoir. Alternatively, the pipe 38 may be replaced by a pipe leading to the circulating pump of the lubrication plant of the engine. This latter pipe may also supply the servo-motor, the oil flowing away from which passes into the reservoir, whilst the second delivery pump returns superfluous oil from the reservoir back to the lubricating plant. The reservoir 17 and governor 30 are mounted within the reservoir 6 which is preferably flanged with an open side built on to. the end wall 7 of the injection pump 1.
Patent GB-256451-A (GB)
Title: An anti-theft device for use on motor vehicles and the like
IPC: B60R25/021
Filed: 1925-11-30
Abstract: 256,451. Turner, C. J. Nov. 30, 1925. Guarding against unauthorized use. - A one-piece sleeve 1 having.a recess 2 is secured to the steering-column support 7, and a key-operated bolt 4 is housed in the recess. The wheel W is locked by the engagement of the bolt with one end of a number of holes 8 in the hub 9 of the wheel. Alternatively, the sleeve 1 may be secured to the column 11, the bolt engaging a hole in a collar on the support 7.
Patent GB-1270856-A (GB)
Title: An annular sealing ring and a method of forming the same
IPC: F16J15/32
Filed: 1969-06-16
Abstract: 1,270,856. Shaft seals. STEFA INDUSTRI AB. 16 June, 1969 [13 Jan., 1969], No. 30295/69. Heading F2B. A sliding ring seal for rotation on a shaft comprises a liner 10, e.g. of metal, and an elastically deformable ring including a base portion 14, a waisted portion 15 and one or more lips 17<SP>1</SP>, 17<SP>11</SP> for engaging a surface 19, the ring being so formed that its inner surface 21, Fig. 2 is twisted through an angle, e.g. of 10 degrees, on joining to the liner 10. The ring may be vulcanized to the liner, and is engaged by an inwardly turned flange 23, Fig. 4. Alternatively, Figs. 5-9 (not shown), an internal ridge in the region 12<SP>11</SP> of the liner 10 may enter a groove in the ring, and the flange 23 may be arranged to cut into the surface of the ring on attachment.
Patent GB-1122866-A (GB)
Title: Improvements in high borate glasses
Inventor: ADAMS REGINALD VICTOR
IPC: C03C3/064
Filed: 1966-07-06
Abstract: A high borate glass composition with good resistance to sodium and low absorption of argon has the following limits except for impurities in percentages by weight:B2O3 45-65; Al2O3 0-5; SiO2 0-10; MgO+CaO+BaO 10-20, at least two components being present; Na2O and/or K2O 10-30.  Preferred limits are B2O3 55-62; Al2O3 1-5; SiO2 2-10; MgO 2-9; CaO 5-13; BaO 1-5; Na2O 10-20.
Patent GB-1434081-A (GB)
Title: Tooth whitening cosmetic composition
IPC: A61K8/73
Filed: 1973-06-27
Abstract: 1434081 Tooth whitening compositions KOH-I-NOOR RAPIDOGRAPH Inc and V A BURELL 27 June 1973 [2 April 1973] 30494/73 Headings C3P and C3F A tooth whitening composition comprises a mixture of (a) an aqueous solution or dispersion of zinc oxide, ammonium hydroxide and ammonium carbonate, (b) a solution or dispersion in ethanol of an acrylic film-forming resin and methyl cellulose, (c) a dispersion in ethanol of non-toxic colouring pigments, and optionally (d) a yellow dye solution. The colouring pigments preferably include titanium dioxide, and the yellow dye, where used, is preferably dissolved in ethanol. Other optional components include preservatives such as methyl or propyl Paraben, and flavouring agents such as peppermint.
Patent GB-211085-A (GB)
Title: Improvements in and relating to brush-making machines
IPC: A46D3/04
Filed: 1923-05-18
Abstract: 211,085. Robinson, J. May 18, 1923. Stapling.-A driving-rod 1, for inserting stapled tufts in a brush stock comprises a steel rod of circular crosssection with a short flat grooved portion 2 at its lower end. The rod passes through a member 5 adapted to be reciprocated vertically in guideways by means of an oscillating lever 3 and is adjustably secured by an apertured bolt 12 which fits in a recess in the member 5 and is clamped against the side of the rod by means comprising a nut 13 and a washer 14.
Patent GB-282962-A (GB)
Title: Improvements in magnetically-actuated friction clutches
IPC: F16D27/112
Filed: 1926-12-03
Abstract: 282,962. Walker, M. Dec. 3, 1926. Electromagnets. - The plate 8 and armature or armatures 7 of an electromagnetic friction clutch are connected by rods 6, slidable through the hollow cores 5 of the magnets 4, which are surrounded by grids formed of pole-members 11, extending from the pole-shoes 12 and optionally connected at their ends by rings 13. Non-magnetic spacing-buttons 14 may be carried on the cores 5 or rings 13.
Patent GB-302782-A (GB)
Title: A new or improved process for charging containers of liquid carbon dioxide, and improved containers for use in conjunction with the said process
IPC: C01B32/50
Filed: 1927-11-15
Abstract: 302,782. Thurston, A. P., (Dryice Corporation of America). Nov. 15, 1927, Storing under pressure. - A closed container is charged with a predetermined quantity of liquid carbon dioxide by a weighed or otherwise determined quantity of carbon dioxide ice inserted, for example, in the form of blocks A, the container being then closed hermetically. The container is made without any contracted neck, so as to be opened, on removing the cover 10, to the full internal diameter.
Patent GB-616161-A (GB)
Title: Improvements in indicating or recording instruments
IPC: G01D15/24
Filed: 1945-11-16
Abstract: 616,161. Indicating-apparatus. SMITH & SONS (NOTTINGHAM), Ltd., S., and WELLER, A. G. Nov. 16, 1945, No. 30715. [Classes 106 (ii) and 106 (iv)] In indicating-apparatus motion is supplied to a pointer 1 through a link 6 by means which are adjustable so that while one end of the pointer moves in a rectilinear guide 3 the indicating end 4 moves in a rectilinear path normal to the guide 3. The adjustment may be provided by a turn-buckle connecting-rod 9 between an operating lever 10 and lever 11 connected to the link 6 through its pivot 7, the connections also being adjustable. Limit stops 15 may co-operate with the lever 11. If the motion is derived from a " Bourdon " tube 12, it may be connected to a nipple 13 through a spiral tube 14 of capillary size to protect the gauge from vibrations. Supports 20, 21 for the mechanism are carried by a plate 18 fixed in the casing, which plate 18 has series of holes 19 for facilitating bending and protecting the gauge further from vibration. The invention may be applied to recording apparatus. Specification 597,644 is referred to.
Patent GB-487478-A (GB)
Title: Tufting attachment for sewing machines
IPC: D05C15/24
Filed: 1937-11-10
Abstract: 487,478. Tufting-machines. STRAIN, O. R., and SPARKS, W. H. Nov. 10, 1937, No. 30863. [Class 112] A tufting attachment capable of being fitted to the under part of the base plate of a sewing machine has a loop-forming member oscillated from the machine shaft, and either an oscillating cutting knife operated by the same shaft but supported independently of the looper, or a stationary knife adjustable relative to the looper. A central shaft E under the base plate a is actuated from the main sewing-machine shaft. Bearings 1 and 3 attached to the base plate support a shaft 6 with a forked member 7 engaging an eccentric 9 on the shaft E, by which the shaft 6 is rocked. A block 15 is adjustably carried on a collar 10 on the shaft 6. The shank of the loop-forming hook 17 is secured to the block 15. A lever 20 is pivoted to the member 3 on a bolt 21. The outer end of the lever is forked to engage a roller on an arm 28 attached to the shaft 6, whereby the lever 20 is rocked. The inner end of the lever carries the loopcutting knife 31. The knife is adjustably yieldingly held against the hook 17 by a spring 23. The knife can be adjusted vertically in its clamp. In the form shown in Fig. 7, the knife 31<1> is flexible and stationary, and is adjustably mounted in a holder 34 on the bearing stirrup 3. A screw 43 presses the knife against the hook member. Take up. The thread passes through an eye 47 in a rod 46 so arranged that as the needle bar D moves up, the rod 46 moves up to take up slack from the loops.
Patent GB-361527-A (GB)
Title: Improvements in devices for permanently waving the hair
IPC: A45D6/08
Filed: 1930-10-15
Abstract: 361,527. Hair - waving appliances. DUCART, G., 27, Boulevard Voltaire, Paris. Oct. 15, 1930, No. 30830. Convention date, Oct. 24, 1929. [Class 131.] A device for closing the ends of heating-tubes employed in permanent hairwaving processes, which also protects the scalp from heat, comprises a rubber block 1 provided with a recess 2 for receiving the end of the heating- tube 3 in which is situated the tress of hair 4 on a curler 5, the block being split diametrically at 9 over the whole of its height but leaving a solid portion 9a forming a hinge, and being secured in position by a clamping-device comprising pivoted arms 10, 11 and a securing bar 13. The recess 2 is provided at the bottom with a groove 6 in which the rolled edge 7 of the tube 3 engages. The bottom 1a of the block 1 is provided with wedge-shaped pins 8 to reduce the area of contact with the scalp and to prevent the circulation of the air. The arms 10, 11 of the clamping device seat in a groove 17 in the block 1, and are provided at the ends opposite the hinge 12 with inclined raised portions 10a, 11a. The bar 13 is pivoted at 15 to the portion 10a and is provided with a slot 14 which engages over the portion 11a, a screw 16 mounted in the end of the bar 13 bearing on the portion 11a. To increase the clamping action of the arms 10, 11 on the block 1, the arms are provided at the free ends with projections 10b, 11b which engage over the outer surface of the block and bear laterally against lug 1c formed on the upper surface of the block adjacent the slit 9.
Patent GB-916276-A (GB)
Title: Improvements in or relating to the production of sulphur trioxide
IPC: C01B17/765
Filed: 1961-08-29
Abstract: In a process for the production of SO3 from a gas containing SO2 and O2 by oxidation on a catalyst arranged in a series of separated sections, air is introduced at a temperature of from 200 DEG -400 DEG C. into the last section of the catalyst in an amount of from 15-400% of the initial quantity of gas.  The process permits the use of the lowest possible temperature in the end section of the catalyst material (usually V2O5) and the greatest possible increase of the oxygen proportion.  An example is given.
Patent GB-904642-A (GB)
Title: A tool holding device
IPC: B23B31/107
Filed: 1960-09-09
Abstract: 904,642. Sockets. WOHLHAUPTER, E., and WOHLHAUPTER, E., [trading as WOHLHAUPTER & CO., EMIL]. Sept. 9, 1960 [Sept. 11, 1959], No. 31106/60. Class 83 (3). A conical tool shank 12a has a transverse pin 13 which co-operates with a rotary member 18 to force the shank into a co-operating socket 11, the conical angle being large. The ring 18 has cam surfaces which, on rotation of the ring, engage balls 17 which wedge beneath inclined surfaces on the pin 13 and force the shank into the socket. The side ends of the pin are flattened to act as drivers. The pin is retained in the shank by a ball 15. In a modification, when relative rotation occurs between the shank and socket, the pin 23, Fig. 4, rides up an inclined cam surface 21e on the socket.
Patent GB-224740-A (GB)
Title: Improvements relating to the making of joints
IPC: F16L23/16
Filed: 1923-12-12
Abstract: 224,740. Aiken, T. L. Dec. 12, 1923. Butt joints. - A fluid-tight joint between pipe flanges 2, 3 is made by providing a projecting ring 4 with a pointed outer edge 4<a> on the flange 3; the ring 4 bears on the surface of the flange 2, and is drawn into effective jointing contact therewith bv means of bolts 5. If desired, the open portion 11 between the flanges 2, 3 may be filled in with bituminous material &c. for excluding air and water.
Patent GB-189135-A (GB)
Title: Improvements in and relating to electron discharge devices and methods of operating same
IPC: H01J21/18
Filed: 1922-11-15
Abstract: 189,135. British Thomson - Houston Co., Ltd., (Assignees of Hull, A. W.). Nov. 15, 1921, [Convention date]. Frequency, changing.- In a two electrode thermionic valve for use as a frequency doubler and amplifier, one of the electrodes is made of helical form, and is adapted to carry a current of sufficient magnitude to produce a magnetic field parallel with the axis of the cathode capable of suppressing the discharge between the electrodes. A magnetic field due to an external winding may be superposed on that due to the electrode. The cathode 7 is heated by the alternating or variable current to be amplified, and the anode 6 is connected with the cathode through a battery 11 and the primary of a transformer 26, the secondary of which is connected with the cathode of a second valve 27. The primary may be shunted by a variable condenser 28. Each valve acts as a frequency-doubler, so that the frequency in the output circuit 31 of the valve 27 will be four times that of the input circuit 20 of the valve 25. Specification 182,516, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-1283134-A (GB)
Title: Piezoelectric transducer configuration
IPC: H04R17/00
Filed: 1970-06-29
Abstract: 1283134 Piezo-electric elements BENDIX CORP 29 June 1970 [25 July 1969] 31328/70 Heading H1E In a piezo-electric transducer a high tensile strength layer is bonded to the opposite faces of the transducer which are subject to tensile stress to improve the power handling capacity. The transducer (Fig. 1) consists of two ceramic piezo-electric discs 12, 22 arranged back-to-back. Each disc has a conductive coating e.g. silver or copper and has a metal backing plate 14, 16, the backing plates being separated by a spacer ring so as to produce an air space 20. Thin metal discs 24, 26 are bonded to the external faces of the transducer by an epoxy cement such that the surface tensile strength is increased to allow increased deflection. In an alternative embodiment (Fig. 3) a bender bar comprises a series of piezo-electric bars 30a, 30b . . . 42a, 42b connected side-by-side in series and back-to-back with segments between electrodes 29, 31.. 43 poled alternately such that the upper segments expand while the lower segments contract. Bonded to the external tensioned faces are layers of insulating material 44, 46 such as glass epoxy resin and outer metal laminate strips 48, 50. In a further embodiment (Fig. 4, not shown) a flexural bar transducer is constructed similarly to the transducer in Fig. 1 with the backing plates 14, 16 and the air space 20 omitted such that each ceramic disc acts as a backing plate for the other.