baber/WOPTO huggingface dataset:
Patent GB-1201063-A (GB)
Title: Method and apparatus for the production of multi-layer building boards
Inventor: PRIGNITZ HERBERT
IPC: B29C44/32
Filed: 1967-08-17
Abstract: 1,201,063. Laminated building board; circular saws. H. PRIGNITZ, [trading as HAPRILEICHTBAUPLATTENWERK]. 17 Aug., 1967 [22 Aug., 1966; 23 Nov., 1966], No 37881/67. Headings B5L and B5N. In a method of producing a multi-layer building board having a foamed plastics material layer e.g. of polyurethane bonded to a layer of strong facing material, a length of strong facing material 13, Fig. 3, is carried on a moving conveyer belt 10 under a foaming head 15, constituents of the plastics material to be foamed are fed in liquid state from a nozzle of the foaming head onto the upper face of the material 13 to form a layer 12 thereon, a fabric web 16 is run substantially parallel to and above the material 13 on the belt 10 into the material 12 as the latter is formed, and foamed plastics is allowed to harden and bond to the material 13 and web 16 to form a composite multi-layer structure from which a building board of the required length is severed transversely to the direction of movement of the structure, the fabric web 16 serving to compensate for shrinkage stresses set up on hardening of the foamed plastics. In one apparatus Fig. 3 for performing the method the foam constituents are applied from the head 15 onto a strong lining 13 of bitumen paper carried by the conveyer 10, and foaming occurs between the lining 13 and an upper moulding belt 14 which may be shaped to form protuberances on the foamed plastics and may be covered by a plastics foil. The fabric web 16 is also fed into the plastics material as it foams to prevent the finished board bending due to differential shrinkage of the plastics foam as it sets. If the fabric web 16, which may be of jute, cotton, or plastics material, is of narrow mesh, the foam materials may be applied through it to the lining 13. In a further process, Figs. 6 and 8, for producing building boards in which the lining material projects at at least one edge of the foamed plastics body, cut lining pieces 30, 30<SP>1</SP>, 30<SP>11</SP> are arranged in overlapping relation on a belt 25 using a gauge 31, and foam plastics constituents applied thereto from a head 29 are allowed to foam between upper and lower belts 26, 25 and side rails 27. The rails 27 are spaced above the belt 25 to allow the linings to project at the edges of the plastics body. The edges of the foamed and set plastics are trimmed by saws 39, one of which is positioned by feeler roller 37 so as not to cut through the lining pieces, and the plastics foam is cut transversely to form individual boards by a saw 45 which moves transversely of the boards on a carriage 43 and is moved along with the boards on a carriage 40. A hooked lever on the carriage 40 locates the saw relative to the overlapping edges of the lining pieces and the saw is arranged not to cut through such pieces. In an alternative process the lining pieces are replaced by a continuous web of lining material, and the carriage 40 is attached to the foamed material by a clamp 36 during cutting by saw 45.
Patent GB-964704-A (GB)
Title: Internally heated saltpetre tank furnace
Inventor: VOLZKE HEINZ
IPC: B01J6/00
Filed: 1960-11-05
Abstract: 964,704. Electric saltpetre tank furnaces. FLUGZEUGWERKE DRESDEN VEB. Nov. 5, 1960, No. 38104/60. Heading H5H. In an internally-heated saltpetre tank furnace electrical heating tubes 1 enter the end of the tank and descend obliquely towards a side wall 4, thence extending parallel in spaced relationship along the wall, each tube being offset towards the centre of the tank in relation to the tube immediately above. Circulation of the saltpetre melt is thus ensured, and there is no overheating of the slurry which settles on the tank floor 6 and can be removed while the furnace is in operation. The temperature may be accurately adjusted by switching the heating tubes on and off in groups of two or individually under the control of a compensating regulator or photo-cell.
Patent GB-1275087-A (GB)
Title: Musical instrument
Inventor: JAKUBOVICZ JOSE
IPC: G10D13/08
Filed: 1969-07-29
Abstract: 1275087 Sonorous bars J JAKUBOVICZ 29 July 1969 [29 July 1968] 38123/69 Headings G5J and G5X A musical instrument comprises sonorous bars 1 arranged in sequence of pitch, a flexible band of material 4 with a musical staff and notes indicated thereon, an arrangement, e.g. box 9 for mounting the band 4 in juxtaposed relation above bars 1, and percussion arrangement, e.g. beaters for striking the band at the notes to strike the bars to produce a sound corresponding to each note. A plurality of replaceable bands having musical staff of different clefs thereon are provided in the chromatic or diatonic scales. The bars may be arranged in a chromatic scale as in Fig. 1 with the associated musical staff having a chromatic scale as in Fig. 5 wherein equal spaces are provided between the natural and altered notes irrespective of whether intermediate altered notes are present or with a staff having a diatonic scale (Fig. 6) with larger spaces between the natural notes having intermediate altered notes. Alternatively the bars may be arranged in a diatonic scale (Fig. 9) with the associated staffs (Figs. 10, 11) having equal spacing between the notes.
Patent GB-819882-A (GB)
Title: Process and apparatus for reducing the coking capacity of coal
IPC: C10L9/06
Filed: 1956-12-14
Abstract: 819,882. Treating coal. RUHRKOHLENBERATUNG G.m.b.H. Dec. 14, 1956 [Nov. 12, 1956], No. 38176/56. Classes 50 and 55 (2). A process for reducing the coking capacity of coal comprises bringing a layer of coal on a travelling grate into contact with hot oxygencontaining gas passing through the thickness of the layer, whilst the temperature of the coal is kept below 300 ‹ C. to prevent it softening. The coal is fed from hopper 21 to the travelling grate 19a and passes from grate to grate until it reaches the outlet 22, the grates 19a, 19b, 19c being arranged so that alternate ones travel in opposite directions. Hot gas, such as furnace gases with or without additional air, and preferably having an oxygen content between 10 and 21 per cent, is fed separately to each tier as shown at 23 so as to pass through the thickness of the coal layers on the travelling grates, the waste gases being withdrawn separately at 25a, 25b and 25c.
Patent GB-828387-A (GB)
Title: Improvements in skips for skip hoists
IPC: B66B17/26
Filed: 1957-12-09
Abstract: 828,387. Operating the doors of skips in shafts. WRIGHT BOAG & HEAD WRIGHTSON (PROPRIETARY) Ltd. Dec. 9, 1957 [Dec. 8, 1956], No. 38206/57. Class 78 (4). Guide formations 15, 14 control the opening and closing of the hinged bottom door 9 of a skip 6 swung for unloading about a pivot 7 on a bridle 4 by which it is carried from guides 5 in a hoist in a shaft. In the construction illustrated the skip is swung to the unloading position shown by fixed guides 3 engaging rollers 8 on the skip. As the skip swings rollers 11 on the door 9 are drawn clear of supports 13 on the bridle 4 so that the door is subsequently held by engagement of rollers 12 with guides 15. After the skip has risen sufficiently for the door to open to the position illustrated, the rollers 11 engage a further guide 14 to prevent the roller 12 swinging through the gap between the guide 15 and a further guide 16. The door 19 is normally held in its closed position by a latch 15a opened against the bias of gravity or a spring by a guide 18. The guide 3 for swinging the skip may be carried on the skip to engage a fixed roller.
Patent GB-382575-A (GB)
Abstract: 382,575. Calculating-machines. RHEINISCHE METALLWAAREN-UND MASCHINENFABRIK SOMMERDA AKT.- GES., S÷mmerda, Germany. May 27, 1932, No. 15131. Convention date, June 5, 1931. [Class 106 (i).] In a machine having unidirectional rotary actuating mechanism each differential actuating segment 1 is in the form of a lateral enlargement of a part of a gear wheel 1a and these wheels, mounted on a spindle 5, are driven by a toothed roller 4 given a complete rotation at each operation of the machine. The spindle is supported by side levers 2 which may be depressed to disengage the wheels from the roller and engage them with setting racks 3. The segments having been set the levers are released to restore the engagement and the roller is then rotated. At the commencement of the movement a cam 11 geared with the roller rocks a stirrup 6, pivoted on the roller axis and forked to straddle the spindle, so as to carry the segments into gear with the transmission pinions 17 of the counter 18. The roller having received a rotation equivalent to the entry of nine, and that value or less according to the setting of the segment having thus been entered in the counter, the cam 11 rocks the stirrup to the disengaged position again, after which transfers may be effected in a known manner. The rate at which the stirrup is rocked corresponds with the velocity of the roller so that at the moment of disengagement no relative rotation of the segments and roller occurs, thus preventing overthrow.
Patent GB-894818-A (GB)
Title: Improvements in paints
IPC: C09D7/47
Filed: 1959-11-11
Abstract: A paint comprising a vehicle constituted by an oil or varnish and a water sensitive pigment is stabilized against thickening on storage by incorporation therein of a compatible readily hydrolysable ester of an organic acid, the ester being soluble in the vehicle of the paint.  The vehicle may comprise a drying or a semi-drying oil in admixture with a natural or synthetic resin. The pigment may be zinc oxide, white lead, red lead, calcium plumbate, basic lead sulphate or metallic pigments, e.g. aluminium.  Suitable esters may be formed from a low molecular weight aliphatic alcohol (containing up to 8 carbon atoms/molecule) or an aromatic hydroxy compound (containing up to 8 carbon atoms/molecule) and a saturated or unsaturated mono-, di- or tri-carboxylic aliphatic acid (containing up to 8 carbon atoms/molecule).  The carboxylic acids may have amino, hydroxy, keto or halogen substituents.  Specified suitable esters are methyl and ethyl chloroformates, triethyl citrate, dimethyl fumarate, dimethyl maleate, dimethyl malate, dimethyl malonate, diethyl, di-n-propyl, dioctyl diphenyl, dibenzyl and ditolyl oxalates, ethyl oxamate and ethyl pyruvate.  Driers such as lead and cobalt naphthenates may be present in the paint. Specification 574,826 is referred to.
Patent GB-1445132-A (GB)
Title: Chewing gums of longer lasting sweetness and flavour
IPC: A23L27/30
Filed: 1973-08-13
Abstract: 1445132 Chewing gum compositions GENERAL FOODS CORP 13 Aug 1973 [5 Oct 1972] 38315/73 Heading A2B Chewing gum contains aspartyl phenylolamine methyl ester (A.P.M.) in order to increase the period of sweetness and flavour retention. The composition is sweetened by sugar or an artificial sweetener e.g. saccharine, or A.P.M. itself. The A.P.M. is present in an amount of 0.1 to 1.5% of the whole composition, or in an amount of 0.05 to 0.4% if modified by converting it to a salt or cogrinding it with an acid, e.g. citric acid, to make it more soluble.
Patent GB-823579-A (GB)
Title: Improvements relating to disc brakes for rail vehicles
Inventor: JACKSON GEOFFREY CARL
IPC: B61H5/00
Filed: 1956-12-15
Abstract: 823,579. Disc brakes. GIRLING Ltd. [Dec. 16, 1957 [Dec. 15, 1956], No. 38338/56. Class 103 (1). In a disc brake for railway vehicles in which calliper levers 15, 16 are adapted to be actuated by a fluid pressure actuator 19 to apply friction pads 13 against opposite faces of a brake disc secured to an axial shaft 10 of the vehicle, the levers 15 and 16 are coupled together adjacent the periphery of the-disc by a transverse coupling member 28 connected to the lower end of a flexible leaf spring 29 secured at its other end to the vehicle frame on bracket 31. The spring 29 permits sufficient lateral movement of the calliper levers 15, 16 to enable the brake to be applied but automatically centralizes the levers and friction pads when the brake is released. The coupling member 28 is in the form of a rotatable turn-buckle nut which is adjustable on oppositely screw-threaded portions of members 25, pivoted at 26 to levers 15, 16 to permit adjustment for wear of the friction pads 13. The brakes may be applied mechanically; in which case the inner calliper lever 16 on each axle of the vehicle are connected bv flexible pull-rods 41 to opposite ends of a short horizontal lever 42 mounted on a vertical shaft 43 which is angularly movable in bearings on a bracket 44 secured to the fluid pressure actuator. A lever 45 mounted on one end of the shaft is coupled through a convenient form of rigging to a hand lever or the like. Balancing of the braking forces in 4-wheeled bogeys or vehicles is obtained through a short equalizing lever 46 to the centre of which is connected a pull-rod from the hand lever or rigging. The brake pads may be replaced when worn since each pad is bonded to a steel backing plate of which the upper end is engaged under a stepped flange 48 on the brake shoe and the lower end is retained 'by a keeper 49 which is held'in place by a nut 50 on a screw-threaded latch member 51 pivoted to the shoe and engaging a slot in the keeper. By slackening the nut, the latch member 51 is swung down and the keeper thus released to allow the friction pad and its backing plate to be withdrawn in a downward direction.
Patent GB-1071134-A (GB)
Title: Improvements in and relating to automatic textile winding machines
IPC: B65H54/24
Filed: 1964-09-21
Abstract: An automatic winding machine in which a plurality of winding stations are attended to in turn by a single device for replacing empty yarn supplying cops with full ones, is characterized in that each winding station has its own individual tying means for repairing broken yarn ends as and when they occur and that the device for supplying fresh cops has a tying device for knotting yarn from a new supply cop to a package being wound.  In Fig. 3 (not shown) each winding machine 12 is carried, in turn, past a cop supplying magazine 16 that supplies a new cop when necessary.  The magazine 16 is part of a device 13 that employs a suction pipe 17 and tying means 14 for joining new ends to old. It may also join broken yarn ends.  The winding machine 12 includes thread balloon disturber 22, a thread cleaning and breaking device 23, tying means 27, and a grooved drum 24 driving the package 18.
Patent GB-870639-A (GB)
Title: Recovery of polymethylene terephthalate
IPC: G03C11/24
Filed: 1959-11-12
Abstract: Recovered polyethylene terephthalate, from which an alkali-soluble polymeric coating has been removed by treatment with aqueous alkali, is added to the reaction product of dimethyl terephthalate and ethylene glycol, and the mixture converted to linear polyethylene terephthalate.  Specifications 524,973, 617,129, 718,422, 786,176, 800,119, 804,069 and U.S.A. Specifications 2,160,903, 2,160,931, 2,160,932, 2,160,933, 2,160,934, 2,160,935, 2,160,936, 2,160,937, 2,160,938, 2,160,939, 2,160,940, 2,160,941, 2,160,942, 2,160,943, 2,160,945, 2,160,947 and 2,465,319 are referred to.ALSO:Polymethylene terephthalate coated with a macromolecular hydrophobic copolymer removable in aqueous alkali is recovered by treatment with a 0.25 to 50% aqueous solution of an alkali-metal hydroxide or alkaline-earth-metal hydroxide at a temperature from 40 DEG  to 130 DEG C. for at least one minute, followed by washing.  The washing may include the step of washing in a dilute aqueous solution of a mineral acid.  Examples are given of stripping solutions consisting of 5% sodium hydroxide at 100 DEG , 10% sodium hydroxide at 80 DEG  and 100 DEG , and 5% barium hydroxide at 100 DEG C.  The polymer removed may be a copolymer of vinylidene chloride, itaconic acid and any one of acrylonitrile, methacrylonitrile, and alkyl acrylates and methacrylates having 1 to 4 carbon atoms in the alkyl group; and may have further coatings thereon.  The recovered polymethylene terephthalate may be remelted and re-used immediately, or may be added to the raw materials in the production of further polymethylene terephthalate. Specifications 524,973, 617,129, 718,422, 786,176, 804,069 and U.S.A. Specifications 2,160,903, 2,160,931, 2,160,932, 2,160,933, 2,160,934, 2,160,935, 2,160,936, 2,160,937, 2,160,938, 2,160,939, 2,160,940, 2,160,941, 2,160,942, 2,160,943, 2,160,945, 2,160,947 and 2,465,319 are referred to.
Patent GB-1012848-A (GB)
Title: A device for extracting oil from an oil sump
Inventor: HAWKES CHARLES
IPC: F01M11/04
Filed: 1964-09-22
Abstract: 1,012,848. Sampling liquids. PETTERS Ltd. Sept. 22, 1964, No. 38551/64. Heading B8N. A device for extracting oil from an oil sump comprises a tube 1 adapted to be inserted into both an oil sump and the inlet port of a cylinder head and a flexible squeeze-bulb 3 containing a spring 8 biasing the bulb into its extended position to create a suction so as to draw a charge of oil into the tube. The tube 1 is formed with a flange 2 secured to the resilient bulb 3 by means of a sealing ring 4 which is urged by a spring 5 into contact with a cork washer 7 held in a cap 6 ; the cap is provided with dimples in order to engage with a bayonet-type fitting on the sump. In operation, the bulb 3 is depressed against the action of the returning spring 8 and then released in order to draw a quantity of oil into the tube. The oil may then be discharged into the cylinder head port of an engine. Oil level indicating rings 9, 10 are formed on the tube. The tube and bulb may be of plastic material.
Patent GB-856253-A (GB)
Title: Improvements in the formation or sharpening of teeth on multi-tooth tools
IPC: B23D73/10
Filed: 1956-01-25
Abstract: 856,253. Grinding files, saws &c. teeth. BOOTH, C. H. March 27, 1957 [Jan. 25, 1956; (2)], Nos. 38930/59 and 38931 /59. Divided out of 856,252. Class 60. A method of forming or sharpening the teeth of a multi-tooth tool blank, such as a file, saw, or milling cutter, comprises engaging the blank with an endless band 16 having a sharpening formation or an abrasive structure of a form complementary to that of the teeth and fashioned on the band as a screw thread or helix whose pitch is equal to, or an integral multiple of, that of the teeth so that engagement of the teeth with the moving band causes or permits progressive advance of the blank past the band whereby successive teeth are machined in a continuous operation. The blank is traversed past the band, which is driven over a guide 19 by pulleys 15, with a bias in the direction of the arrow A, Fig. 2, at a speed depending upon the speed of the band so that the leading faces 2 of the teeth are ground by a flank 12 of the structure, which may be of abrasive or plain metal fed with abrasion paste or powder. The clearance faces 3 of the teeth are ground either by reversing the direction of movement of the band or by traversing the blank past the tool in the same direction while maintaining a bias to keep the clearance faces in contact with a flank 13. Stops 11 control the depth of engagement blank with the band. Both faces of the teeth of the blank may be grooved simultaneously by using a band which has a discontinuous surface consisting of bars 6a, 6b, Figs. 3 and 5, the teeth on each bar having a pitch which is twice that of the teeth on the blank. A blank which has alternate teeth having faces with right and left-hand rakes may be sharpened by a band having the pitch of its abrasive structure twice that of the teeth on the blank and supporting the blank on a rest 14 which can be set at one angle for sharpening, say, the odd-numbered teeth, and to another angle for sharpening the evennumbered teeth.
Patent GB-1014641-A (GB)
Title: Improvements relating to weighing apparatus
Inventor: JONES WILLIAM
IPC: G01G3/02
Filed: 1961-11-01
Abstract: 1,014,641. Weighing apparatus. W. & T. AVERY Ltd. Nov. 1, 1962 [Nov. 1, 1961], No. 39026/61. Heading G1W. Apparatus for weighing charges of fluid fed into gas cylinders, comprises a load supporting cradle 3 (Fig. 1) mounted on a fixed frame 6 for vertical movement only by a parallel motion linkage system formed by pairs of flexure strips 7, 8. Connected to an extension arm 14 of the cradle is one end of a tension spring 15 the other end of which is connected to a manually adjustable screw support 16 attached to the frame. The arm 14 is also linked by means of a ribbon 18 to a cam 19 which carries a pointer 21 having a counterweight 23 to tension the ribbon 8. When the load reaches a predetermined value the pointer unlatches an indicating flash (Fig. 2 not shown) which swings to an exposed position to give visual warning that the required weight has been reached. Stops 12,13 are provided to prevent damage due to undue movement of the cradle when placing the cylinder. Tare Adjustment. A container is loaded into the cradle and screw 16 is adjusted until the cradle arm 14 is raised from a stop 31 on the frame and the pointer is at zero on a chart 22.
Patent GB-832485-A (GB)
Title: Improvements in or relating to the application of chemically-bonded coatings to the surface of aluminium
IPC: C23C22/38
Filed: 1957-12-16
Abstract: A bath for the application of chemically bonded coatings to the surface of aluminium or aluminium-base alloys has a pH of 0.8-4.5 and contains 0.15-12.5 g/l. fluoride ion, 3-60 g/l. hexavalent chromium (expressed as CrO3), 2-285 g/l. phosphate (expressed as PO4), 0.0026-0.526 mols in total of sodium and potassium per gram of fluoride ion, and the amount of dissolved aluminium restricted by the solubility limit of sodium potassium fluoaluminate having at least 6 fluorine atoms for each atom of aluminium.  Aluminium may be added as scrap metal or in the form of a soluble compound, e.g. aluminium primary or tertiary phosphate.  Cryolite may also be added to the bath in a proportion of 1-5 g/l.  The bath is replenished with fluoride, hexavalent chromium, phosphate and sodium plus potassium, replenishment with fluoride and sodium plus potassium being effected independently to maintain the desired ratio therebetween.  Specified reagents are HF, NaF, KF, NaF.HF, KF.HF, CrO3 and H3PO4. Specifications 632,097, 632,102, 708.937 and 832,486 are referred to.
Patent GB-974446-A (GB)
Title: Improvements in apparatus for feeding powdered material
Inventor: SULLIVAN STANLEY OSCAR
IPC: B01F15/02
Filed: 1962-10-16
Abstract: 974,446. Discharging material from hoppers. NOVADEL Ltd. Oct. 15, 1963 [Oct. 16, 1902], No. 39082/62. Heading B8S. An agitator has arms 7 provided in an upper hopper 1 and also arms 6 provided in a lower hopper 2, the hoppers being connected by an aperture, and is provided with a rubber seal 11 beneath the cone part 5 of the agitator so that, as the agitator is rotated from the gear-box 4, material, which passes from hopper 1 to hopper 2 and is then discharged at 10, is prevented from passing inside the cone 5 by the seal. Specification 913,671 is referred to.
Patent GB-1383033-A (GB)
Title: Vacuum tubes
IPC: H01J29/38
Filed: 1972-08-23
Abstract: 1383033 Cathode-ray tubes ENGLISH ELECTRIC VALVE CO Ltd 18 July 1973 [23 Aug 1972] 39169/72 Heading H1D In a vacuum discharge tube incorporating a semi-conductor element constituting a photocathode or secondary-electron emissive cathode -e.g. a television camera, image converter, or photomultiplier-the element is cooled by a thermoelectric device. In the image converter shown, having a phosphor screen 18 and a semi-conductor photocathode 20-e.g. of Si, GaInAs, or InAsP, doped on the surface facing the screen 18 with Cs or 0-the photocathode is supported by the annular thermoelectric device 26, which is preferably itself secured to a thermally conductive portion of the tube envelope.