baber/WOPTO huggingface dataset:
Patent GB-696379-A (GB)
Title: Improvements in or relating to backing members for machine sanding apparatus
IPC: B24B21/08
Filed: 1950-11-16
Abstract: The fibres of a fabric are strengthened to make it more water-resistant by impregnation with a polymeric vinyl acetate emulsion containing a maleate prepared as follows:-3300 pts. water, 37 pts. polyvinyl alcohol, 15 pts. sodium bicarbonate, and 30 pts. sodium lauryl sulphate are mixed and heated to 135-140 DEG  F. 1953 pts. of vinyl acetate monomer and 18 pts. ammonium persulphate are then added and the mixture held at 138-140 DEG  F. for 30 mins.  446 pts. of di-2-ethyl butyl maleate monomer are then added slowly, and the temperature is again held at 138-140 DEG  F. for 30 mins., after which it is allowed to rise to 185 DEG  F. for final reaction.  Also disclosed in examples are adhesive compositions as follows:-(2) adhesive based on an oil-modified alkyd resin and prepared by mixing and heating to 450 DEG  F. 660 pts. dehydrated castor oil, 1060 pts. linseed free fatty acids, 595 parts glycerine, and 1130 pts. phthalic anhydride; after 2-3 hrs. the product is cooled to 400 DEG  F. and 550 pts. xylol are added; other drying oils, e.g. oiticica, tung, perilla and soyabean, may also be used; (3) adhesive based on oil-modified phenol-formaldehyde resin and prepared by mixing 270 pts. tung oil, and 90 parts oil-soluble phenol-formaldehyde resin and heating at 450 DEG  F. for 40-50 mins.; the product is cooled to 400 DEG  F. and 110 pts. xylol and 110 pts. of mineral spirits are added.
Patent GB-727553-A (GB)
Title: Improvements in or relating to systems for supplying electric power to an x-ray generator from a source of voltage
IPC: H01F29/04
Filed: 1953-10-13
Abstract: 727,553. Supply and switching systems for X-ray tubes; transformer systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 13, 1953 [Oct. 21, 1952], No. 28118/53. Class 38 (4). In a supply system for an X-ray tube 17, requiring a wide range of operating voltages, comprising a high-tension transformer 20 supplied from mains 51, 52 over a multi-tapped autotransformer 50 and a pair of back-to-back switching ignitrons 95, 96, the range of voltages over which the ignitrons must be capable of operating is reduced by the provision of two primary windings 21, 22, on the transformer 20 and of a series/parallel contactor 42 for these windings whereby the step-up ratio of the transformer may be varied. The contactor is controlled by a switch 90, operated by a cam 86 which is moved with the coarse voltagetapping switch 84 of the autotransformer, the arrangement being such that as switch 84 is moved progressively from position 11 to position 1 to effect successive increases in tube voltage, at some intermediate position switch 90 closes to change the initial series connection of windings 21, 22 into a parallel connection. A different fine-tapping switch 80, or. 82, is effective for the two ratios of the transformer 20.
Patent GB-1003834-A (GB)
Title: Improvements in or relating to dispensers for articles
IPC: G07F11/18
Filed: 1962-07-23
Abstract: 1,003,834. Dispensing bottles and the like. F. BETTINI. July 23, 1962 [Aug. 4, 1961], No. 28173/62. Heading B8S. Bottles or like generally cylindrical articles 2, 2<SP>1</SP>... arranged in a staggered pair of columns in a hopper 1 are dispensed singly by alternate operation of a pair of hinged gates 3, 3<SP>1</SP>. Normally one of the gates, covering half the width of the hopper, is closed and engages the lowermost bottle 2 which in turn supports the superimposed bottles. When this gate is opened, the bottle 2 is released and the other gate, in closing, engages the next lowest bottle 2<SP>1</SP>. Linkages 7 by which the gates are operated are interconnected as shown in Fig. 2 and operated by a cam 13, Fig. 4 (not shown), which engages cam followers 12 on the two linkages 7. In a bottle dispenser comprising a plurality of such hoppers, the operating cam of each hopper is driven by its own individual motor so that a failure of one of the hoppers need not immobilize the whole dispenser.
Patent GB-935064-A (GB)
Title: Character recognition apparatus
IPC: G06K9/00
Filed: 1962-07-23
Abstract: 935,064. Automatic character reading. ING. C. OLIVETTI & C. S.p.A. July 23, 1962 [July 25, 1961], No. 28201/62. Class 106 (1). Characters in magnetic ink are A.C. magnetized at 2, Fig. 1a, and passed under a sensing head 3, the signal being demodulated to produce a characteristic waveform as shown in Fig. 2. The waveform 46 is sampled in gates 22-28 by distributed pulses P0-P6 and the samples stored in stores 30-36. Each sample value is compared with three voltage levels M<SP>1</SP> M<SP>11</SP>, M<SP>111</SP> which are set proportions of the maximum value of the waveform 46 stored in store 44. The comparators give outputs on one or other of two leads 76, 77 depending on whether the sample exceeds the applied reference voltage or not, so that each sample is converted into three binary digits, the character being represented by seven such groups. Combinations appropriate to each expected character are gated together in gates 55, Fig. 1b and an output identifies the character sensed. Alternatively, the combinations for each character are added in resistive adders 61 and the character is identified by the highest adder output on leads 64. The gate method is used for two symbols E 1 , E 2  and the adder method for digits 0-9. The highest adder output is found by mixing all the outputs in a diode gate 68 and taking a predetermined major part of the highest signal as the threshold level in circuits 65. Output gates 73, 58 are opened by the pulse P7 from the distributer 12 and a signal on either of the symbol leads 57 prevents the digit gates 73 being opened.
Patent GB-503932-A (GB)
Title: Improvements in or relating to levelling devices
IPC: E02F9/02
Filed: 1937-10-16
Abstract: 503,932. Gravity switches ; selflevelling arrangements. RUSTONBUCYRUS, Ltd. (Bucyrus-Erie Co.) Oct. 16, 1937, No. 28216. [Class 38 (v)] [Also in Group XXXIII] A self-levelling device for an excavator comprises a switch box 18 on a triangular platform 17 suspended by rods 16 from girders 15 on the main platform of the excavator. This allows the platform 17 to swing freely but remain parallel to the excavator platform, and saves the switch mechanism from lateral shocks. The switch mechanism comprises four cylinders 21 joined in opposite pairs by pipes 22 provided with valves V for preventing surging of mercury contained in the cylinders and pipes. Each cylinder is provided with a piston 26, Fig. 4, which acts on a counterpoised lever 24 pivoted at 25 and carrying an adjustable tilting mercury switch 29. Variations of level of the excavator cause operation of one or more of the four mercury switches 29 which control motor driven pumps driving levelling jacks to keep the excavator level in accordance with the system described in Specification 503,931, [Group XXXV].
Patent GB-793508-A (GB)
Title: Improvements relating to perforating machines
IPC: B26F1/36
Filed: 1956-09-14
Abstract: 793,508. Perforating-machines. ZANDER, A. K. Sept. 14, 1956 [Sept. 15, 1955], No. 28218/56. Class 31 (2). [Also in Group XV] A perforating machine with adhesive tape supply means for strengthening the regions around the hole perforations and having at one side a single punch and at the other side at least two selectively-operable punches is characterized in that the two or more punches at the one side are axially displaceable and lockable in operative and inoperative positions while adhesive tape carrier and feeding means at the said side of the machine is mounted on the machine in a laterally displaceable manner so as to be capable of serving any one of the two or more punches at the said side of the machine. As shown, punches 6, 7 are mounted in a depressible beam 8, the punch 6 being fixed and the punches 7 being axially displaceable. The punches 7 are located between clamping blocks 9, 11, the block 9 having parallel punch-locating grooves 12 and the block 11 having a ridge 13 for engaging spaced transverse notches 14 in the sides of the punches. The blocks 9, 11 are pressed towards each other against the action of springs by means of a screw 15. On the sides directed towards the screw 15, the punches are provided over a short length with flat recesses 18 for preventing rotation of the punches while being guided along the screw, the ends of the recesses serving to limit the axial movement of the punches. The punches 7 are provided at their upper ends with handles 19 to facilitate sliding the punches when they are unlocked. An adhesive tape supply drum 21, and an adhesive tape feeding roller 22 and pressure roller 23 are mounted on a carrier bracket 24 which is slidably mounted on the shaft 25 of the roller 22 and on the non-rotatable shaft 27 of the drum 21. A pin 26, Fig. 3, fixed on the bracket 24 is guided into the base part 5 of the machine and is provided with a stop whereby outward movement of the bracket is limited. The shaft 27 is provided with grooves for selective engagement by a ball catch provided in the drum 21. The adhesive tape adhering to the region of the material to be perforated is severed by means of a knife 32. A mounting foot adjacent the rear of the machine and at the displaceable punch side of the machine is slidable in a transverse direction with the carrier bracket 24. The punches co-operate with die holes 3 in a platform 4 which is provided on its underside with hingedly-mounted containers for punchings. In a modification, Figs. 12 and 13 (not shown), the means for locking the two or more punches at one side of the machine comprise a spring-loaded horizontal slide having a slot provided with enlarged portions corresponding to the spacing of the punches, the restricted parts of the slot being capable of being slid on to reduced portions of the punches.
Patent GB-983413-A (GB)
Title: Improvements in and relating to uniting members of thermo-plastic synthetic resin bywelding
Inventor: ALBRECHT CHRISTHART
IPC: B29C65/28
Filed: 1962-07-24
Abstract: 983,413. Pipe joints. FELTON & GUILLEAUME CARLSWERK A.G. July 24, 1962, No. 28337/62. Heading F2G. [Also in Divisions B5 and H2] Two thermoplastic tubes 6, 7 of e.g. polyethylene or P.V.C. are joined by supporting the tubes internally by heat-resistant ring 9 and bandaging the joint 3 tightly with a formretaining, heat-resistant bandage 4 and then welding the rods together by applying heat. The bandage may be removed after the rod has been allowed to cool. The bandage, preferably elastic and transparent, may be a foil of a synthetic resinous material, e.g. a fluorized high molecular weight polymer of it may be porous, i.e. cotton tape or a strip of glass fibre material. The tubular ends may be shaped to co-operate as in Figs. 5 and 6 (not shown). Tubes having different diameters are united by the above method by first winding tape on to the smaller until the diameters are equal. In the embodiment shown in Fig. 4, the rod, or tube 10 is welded to the tube 11 by means of the thermoplastic collar 13. The collar may previously be welded on to the rod or tube or wound on to it in strip form until it has the same diameter as the tube 11 the joint then being bandaged and the welding performed as before.
Patent GB-1487463-A (GB)
Title: Vapour trap
IPC: F16T1/10
Filed: 1975-07-04
Abstract: 1487463 Steam traps KERAG KESSEL APPARATE-UND ANLAGENBAU 4 July 1975 [9 July 1974] 28370/75 Heading F4U [Also in Division F2] A vapour or steam trap comprises an inlet opening 6, a discharge opening 3, a valve seat 4 surrounding the discharge opening 3, a valve member in the form of a continuous membrane 7 covering the openings 3 and 6, a chamber 8 containing a liquid control medium vaporizable at the normal working temperature of the trap, and a check valve member in the form of an annular membrane 11 positioned in the trap on the side of the membrane 7 away from the chamber 8. A stop plate 10 is provided for the membrane 7. The membranes are clamped together at their outer peripheries by an 0-ring 12. The pliability of membrane 11, adjacent O- ring 12, is greater than that of membrane 7, while in the region of valve seat 4, the pliability of membrane 11 is less than that of membrane 7. Consequently, if a back pressure develops (dashed arrows), this pressure forces membrane 7 away from valve seat 4, but forces the annular membrane 11 over the inlet opening 6 (see dashed lines).
Patent GB-1516173-A (GB)
Title: Fluid fractionating tubular membrane apparatus
IPC: B01D65/00
Filed: 1975-07-04
Abstract: 1516173 Tubular membrane apparatus; Dispersing gas in liquids RHONE-POULENC -INDUSTRIES 4 July 1975 [5 July 1974] 28371/75 Headings B1C, BIL and B1X Fluid fractionating apparatus comprises a jacket 1, 2 having a fluid inlet 18 and outlet 19 for introducing and extracting a first fluid, at least one hollow core 4 within the jacket, at least one continuous porous tubular membrane support element 7 (also represented by 6) having at least one longitudinal channel 9 connected to the exterior of the jacket (via 11, 12, 15 and 17), the support being wound uniformly around the core, a membrane covering the support element externally and means 17 for supplying and/or removing a second fluid to or from the channel. A horizontally disposed embodiment is also described. The apparatus is used for exchange operations, e.g. dialysis, direct osmosis, liquidgas and gas-gas exchange operation, fluid separation, e.g. reverse osmosis, gas permeation and mixing operations, e.g. dissolving gases in liquids.
Patent GB-246424-A (GB)
Title: Improvements in boots and like footwear
IPC: A43B9/02
Filed: 1924-10-16
Abstract: 246,424. Benda, J. Oct. 16, 1924. Welts.-Boots and shoes are provided with an ornamental false welt 3 of patent leather of the same nature and colour as the upper 2 or differing therefrom. The welt mav be cemented under pressure to an outer sole 1 by celluloid solution. The sole may be prepared and connected to the welt 3 before attachment to the insole. In a modification, the false welt is cemented over the real welt as a facing to the latter.
Patent GB-616947-A (GB)
Title: Improvements in or relating to apparatus for handling strips of sheet material
IPC: B29D7/00
Filed: 1946-09-25
Abstract: 616,947. Feeding webs. KODAK, Ltd. Sept. 25, 1946, No. 28604. Convention date, Oct. 6, 1945. [Class 100(i)] An apparatus for guiding strips of plastic sheet material such as cellulose derivatives or artificial resins is formed of one or more pairs of spaced edge rollers 2, 3 adapted to engage the extreme edges E of the strip S, the rollers 2, 3 being mounted on bearing members 10, 11, and being formed with flanges 6, 7. The bearing surfaces are pinned to a connecting shaft 14, and are arranged with their axes angularly displaced, as indicated in Fig. 2, to meet at a point midway between the extreme edges of the strip, so that the edges of the strip are smoothed by sliding contact with the rollers, and the strip is maintained in arch therebetween. The angular displacement of the bearing members is less than 10 degrees, and is preferably between .25 degrees and 5 degrees. The bearers are pinned to the shaft 14 and the rollers 2, 3 are held in place by an end block 20 and a collar 23 pinned to the shaft 14.
Patent GB-405076-A (GB)
Title: Improvements in and relating to shoes
IPC: A43B3/10
Filed: 1932-10-13
Abstract: 405,076. Sahara sandals. ROLLMANN, H., 223, Goltsteinstrasse, Marienburg, Cologne, Germany. Oct. 13, 1932, No. 28626. [Class 17 (ii).] The moulded upturned edge of the sole of a Sahara sandal or the lower edge of the upper to which it is to be attached is provided with an ornamentation such as an ornamental seam or strip which is applied by machine, and is in turn connected to the other part by a machine made seam to connect the upper and sole together. As shown in Fig. 1, an ornamental seam c is braided through perforations b in the flange a on the sole and the upper f is connected to this seam c by a machine made seam p. Incisions h closed by lacing i may be made in the upper so that the flaps so formed may be turned back to facilitate making the seam p on an ordinary sewing machine. In the form shown in Fig. 4, a strip o is secured to the lower edge of the upper, which may be upturned as shown on the right hand side, and to the upper edge of the flange on the sole a by machine made seams p, m respectively. The strip o projects laterally so as to conceal at least one of the seams m, p. Specifications 380,623, 383,935 and 387,602 are referred to.
Patent GB-865827-A (GB)
Title: Improvements in gear pumps
Inventor: CLERK ROBERT CECIL
IPC: F04C2/14
Filed: 1958-09-05
Abstract: 865,827. Gear pumps. GYREACTA TRANSMISSIONS Ltd. Dec. 1, 1959 [Sept. 5, 1958], No. 28658/58. Class 110 (2). Meshing gears 2, 3 have helical teeth 4, and inlets 10, 11 through which oil and air are supplied separately. Oil at, or slightly above, atmospheric pressure, is also supplied through parts 12, 13 compressing the air in the root spaces of the teeth, before the delivery port 14 is reached, and the oil and air discharged and separated. The pump may be used to evacuate a flywheel chamber such as described in Specification 728,122.
Patent GB-246087-A (GB)
Title: Improvements in lubricators
IPC: B60R17/00
Filed: 1925-11-14
Abstract: 246,087. Facks, W. Nov. 14, 1925. Force-feed lubricators.-In a lubricator comprising a chamber i containing a spring-loaded plunger j and located between a non-return grease-injection nipple a and on outlet g connected to a bearing, the stroke of the plunger j is approximately twice its diameter. A rod m extends from the plunger through the cover l to indicate the quantity of grease in the chamber.
Patent GB-259408-A (GB)
Title: Improvements in screw propellers
IPC: B64C11/00
Filed: 1925-11-26
Abstract: 259,408. Pepper, F. W. Nov. 26, 1925. Screw propellers.-Screw propeller blades are inclined 67¢‹ to the line of thrust. Reference has been directed by the Comptroller to Specification 8093/02.
Patent GB-503037-A (GB)
Title: Automatically actuated date indicator
IPC: G04B19/243
Filed: 1937-10-22
Abstract: 503,037. Date indicators. BURNETT, S. Oct. 22, 1937, No. 28831. [Class 106 (iv)] A date indicator comprises an endless band on which are printed all the dates for a year, the band passing over a number of rollers in a zigzag manner and being operated by hand, by clockwork or electromagnetically. As shown, the band 1 passes over a number of guide rollers 3 and also over intergeared driving rollers 11, 12, 12a and over a roller 5 mounted on a slidable block' 6 whereby the tension in the band can be adjusted. The roller 11 is driven by ratchet gearing comprising a pawl pivoted to a lever connected to a rod spring-pressed against a cam on a clock-driven wheel rotating once in twenty-four hours, the actuating movement of the pawl lever occurring suddenly. The roller 12a can be operated by hand to adjust the band and the cam wheel can be slid along its shaft to permit this adjustment. Alternatively, instead of the clock drive the roller 11 may be driven by a pawl pivoted to a spring-controlled rod having a knob which may be manually depressed to move the band. A wheel 24 indicates the day names and is connected to the roller 11 through gearing including a clutch. The band has 366 dates.
Patent GB-1076550-A (GB)
Title: Improvements in or relating to fuel elements
IPC: G21C3/16
Filed: 1965-04-28
Abstract: 1,076,550. Fuel elements. GENERAL DYNAMICS CORPORATION. April 28, 1965 [May 5, 1964; July 22, 1964], No. 28852/66. Divided out of 1,076,549. Heading G6C. A fuel element is made by mixing nuclear fuel particles with a viscous liquid to form a paste and forcing the paste under pressure into a chamber in a refractory material of high thermal conductivity so as to completely fill the chamber. By way of example, a fuel element as described in Specification 1,076,549 for use in a helium-cooled HTGR has a graphite body section made by extruding a charge of graphite flour and coal tar pitch. Twelve radially disposed fuel chambers are provided in the extrusion, having wedge-shaped crosssections. The extrusion is baked at 900 C. and then the temperature is slowly raised to 2600 C. to effect graphitization. To lower the gas permeability to helium to the desired level of about 5 x 10<SP>-2</SP> cm.<SP>2</SP>/sec. (at room temperature), the extrusion is impregnated with a mixture of furfuryl alcohol and maleic anhydride. Ethylcellulose is added to increase the viscosity of the mixture to about 10,000 cps. The impregnated extrusion is baked to carbonize the impregnant and graphitization is then effected by passing the extrusion through a furnace. A paste is made of fuel particles, graphite and coal tar pitch. Fuel particles of ThC 2  and enriched UC 2  (in a 10 : 1 atom ratio, Th : U) are used which have an average diameter of about 700 microns, including a 100 micron thick coating of pyrolytic carbon. The paste comprises 85 parts by weight coated fuel particles, 5 parts graphite (of particle size no more than about 40 microns) and 10 parts coal tar pitch, the fuel particles occupying about 70 volume per cent of the paste. The fuel chambers are filled with the paste and the body section is baked by heating to about 1800 C. for about 20 hours to drive off volatiles from the coal tar pitch. The body section is now ready for assembly with the rest of the components of the fuel element.
Patent GB-1400491-A (GB)
Title: Reforming catalyst and method of preparation thereof
IPC: B01J23/648
Filed: 1972-06-20
Abstract: 1400491 Reforming catalysts AIR PRODUCTS & CHEMICALS INC 20 June 1972 [21 June 1971] 28852/72 Heading B1E [Also in Division C5] Supported catalysts comprise 0.2-1.5 wt% of a Group VIII noble metal (based on the weight of the catalyst) deposited uniformly on alumina having a surface area of at least 200 m<SP>2</SP>/g, a bulk density less than 0.55 kg/l, and an X-ray detectable crystallinity of 25- 50% X, less than 5%# and at least 90% of the balance γ and containing 0.05-0.5 wt% of a Group VA metal oxide. The catalyst may be prepared by mixing a specified hydrated alumina gel with the Group VA metal oxide, drying and calcining the mixture to form an aluminaceousmaterial having the alumina phase content and surface area specified, leaching the aluminaceous material with dilute acetic acid, washing, drying and calcining at 800-1000‹F the leached material, cooling and humidifying the calcined product, impregnating the support with a solution of a Group VIII metal compound under CO 2 , and drying and calcining at 800 - 1000‹F the product.
Patent GB-1512716-A (GB)
Title: Selective fluoride-sensitive electrode
IPC: G01N27/30
Filed: 1975-07-09
Abstract: 1512716 Fluoride selective electrode RADELKIS ELEKTROKEMIAI MUSZERGYARTO SZOVETKEZET 9 July 1975 [31 Oct 1974] 28855/75 Heading G1N A fluoride selective electrode comprises a solid block of two or more of the fluorides of rare earth and Group IIIA (excluding actinium) metals mounted in a hollow insulating electrode body by a flexible elastic sleeve, a portion of the block face of the sleeve having a rounded profile free of edges or apices and the other portion free of the sleeve contacting a reference fluoride solution containing a pick-up electrode. The sleeve is preferably silicone rubber and the rounded portions may have been subjected to surface isothermal recrystalization. The rounded portion contacts the solution to be measured and the sensor 4 is mounted in a plastics electrode body 6 by the elastic layer 5. The fluorides may be fluorides of Yb and Lu, or of Dy, Ho, Er and Tm, or of Eu, Gd and Te or of Sc and Y or of La, Ce, Pr, Nd, Te and Sa or of La and Pr or La, Eu and Dy or any selection of IIIA metals (excluding actinium and naturally occurring rare earth elements). Double fluorides of Formula XY 3 P 10  where X = Na, K or NH 4  and Y = Group IIIB metal may be used as components and so may a mixture of fluorides and oxides or hydroxides of Group IIIB metals. The sensor is preferably a single crystal. The cell reference electrolyte 8 is a mixture of [deci] molar NaCl and NaF and the reference electrode 9 is Ag/AgCl.