baber/WOPTO huggingface dataset:
Patent GB-522644-A (GB)
Title: Improvements in or relating to the production of ethers of methylol urea
IPC: C07C275/10
Filed: 1938-12-16
Abstract: 522,644. Ethers of methylolureas. DU PONT DE NEMOURS & CO., E. I. Dec. 16, 1938, No. 36721. Convention date, Dec. 17, 1937. [Class 2 (iii)] Ethers of methylolureas are manufactured by reacting a water wet methylolurea with a monohydric alcohol in the presence of an acid catalyst, and neutralizing the acid catalyst after substantial completion of the reaction. The methylolurea may contain 5-50 per cent. of water. In examples : (1) dimethylolurea containing 30 per cent. of water is warmed with isobutyl alcohol in the presence of phosphoric acid, yielding the diisobutyl ether ; (2) the isobutyl alcohol of (1) is replaced by n-butyl alcohol; (3) dimethylolurea (30 per cent. water wet) is warmed with sec. butyl alcohol in the presence of concentrated hydrochloric acid ; (4) the sec. butyl alcohol of (3) is replaced by isopropyl alcohol, and (5) by methyl alcohol; (6) monomethylolurea (8 per cent. water wet) is warmed with isobutyl alcohol in the presence of hydrochloric acid ; (7) the isobutyl alcohol of (6) is replaced by n-butyl alcohol. The aralkyl ethers, e.g. the benzyl ether, of mono- and dimethylolurea may be similarly prepared.
Patent GB-1426743-A (GB)
Title: Motor vehicles
IPC: G02B27/01
Filed: 1972-08-08
Abstract: 1426743 Controlling vehicles ROVER CO Ltd 10 July 1973 [8 Aug 1972] 36923/72 Heading B7H A motor vehicle including a steering wheel in the form of a disc has an optical projection system for projecting information such as vehicle speed on to a windscreen or other transparent member above the steering wheel in the line of vision between the driving position and front of the vehicle. The steering wheel can be used with a collapsible or hinged steering column and may be padded adjacent the driver.
Patent GB-1049528-A (GB)
Title: Deformation of substances which are brittle or not readily deformable
IPC: B21D11/20
Filed: 1962-09-28
Abstract: 1,049,528. Making helmets and plates; stamping. R. L. MOORE. Sept. 30, 1963 [Sept. 28, 1962], No. 36951/62. Headings B3A and B3Q. [Also in Divisions A3 and B5] Aluminium honeycomb, usable for linings for protective helmets is shaped to a curved form dissecting it by a system of cuts extending from at least one face and through at least the greater part of its thickness, while it is adhered to a thin flexible, elastic base such as scrim, stockinette crimped thread material, or sheet rubber and thereafter deforming it to the desired shape.
Patent GB-454313-A (GB)
Title: An improved process and apparatus for photography
IPC: G03B19/02
Filed: 1934-12-24
Abstract: 454,313. Multiple - photograph cameras. SCHAAN, A., 12, Rue du Trone, Brussels, and TODSEN, H., 37, Oberfelderstrasse, Hamburg, Germany. Dec. 24, 1934, No. 36957. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 27, 1935]. [Class 98 (i)] Successive photo graphs are taken or a single plate in horizontal and vertical rows and the plate is stepped be tween exposures, the steps being limitec by means which must be manually released to allow further movement A short focus lens may be used in the camera. In the form shown, the plate holder 22 is carried in a frame 17, sliding vertically in a frame 13 which itself slides horizontally on the bars 12, 12a forming the top and bottom walls of a box 8. The frames 13, 17, carry springs 14, 18 bearing pegs 15, 19 each engaging one of. series of holes 16, 20 in the bar 12 and frame 13 respectively. The box 8 has an aperture 28 in its front wall in front of which the lens and shutter are mounted and is ' supported by uprights 4 which also carry a canopy forming a focusing cloth. For focusing, a screen may replace the plate holder 22 and is viewed through a magnifying glass.
Patent GB-344881-A (GB)
Title: Pumps, especially for refrigerating machines
IPC: B25B7/12
Filed: 1929-12-03
Abstract: 344,881. Refrigerating. EINSTEIN, A., 5, Haberlandstrasse, and SZILARD, L., 95, Prinz Regentenstrasse, Wilmersdorf, both in Berlin. Dec. 3, 1929, No. 37004. Convention date, Dec. 3, 1928. [Class 29.] Compression machines and systems.-A pump for circulating liquid or compressing vapours, e.g. in refrigerating systems, employs an alkali metal or alloy in the liquid state as the medium through which pumping is effected. Sodium potassium alloy, liquid at - 12‹ C. maybe employed. The liquid may be moved by a magnetic field acting on it while it is traversed by an electric current. Fig. 2 shows a jet pump in which the liquid metal, circulated by the apparatus 10, entrains a refrigerant, drawing it from the evaporator 18 and passing the mixture to a separator 15 from which the metal returns to the apparatus 10 while the refrigerant passes to the condenser 17 of the refrigerating system.
Patent GB-1180538-A (GB)
Title: Device for Photoelectric Detection of Moving Filaments or Strips
Inventor: SICK ERWIN
IPC: D03D51/34
Filed: 1968-08-02
Abstract: 1,180,538. Phako-electric detection of moving yarn or filament. E. SICK. Aug.2, 1968 [Aug.12, 1967], No.37054/68. Heading G1A. A moving yarn or filament is detected by a photoelectric receiver responsive to the light scattered by the yarn or filament when at least a portion of it is encompassed by a pencil of light directed parallel to and lengthwise of the yarn or strip. The invertion may be applied to detect the waft yarn in a shuttleless loom and may be caused to operate an alarm or control. In cases where the detected light varies in a periodic manner an A.C. amplifier may be used and the results of standing light thus suppressed.
Patent GB-1352592-A (GB)
Title: Film drier
IPC: G03D15/02
Filed: 1971-08-06
Abstract: 1352592 Automatic control of temperature AGFA-GEVAERT A G 6 Aug 1971 [6 Aug 1970] 37065/71 Heading G3R In a film drier, film 4 Fig. 1 is fed by a motor (not shown) in direction of arrow A and air from blowers 5, (6) is warmed by heaters 9 and directed parallel to the film by ducts, part of the air being recirculated in direction E back to the blowers intakes. Each heater 9 comprises groups of elements 10, 11, 12. Element 11 is connected direct to the mains and supplies the minimum heat requirement. Element 10 is connected to mains via a controlled rectifier 24 e.g. triac adjustable by means of a potentiometer 25. Element 12 is controlled by a thermostat 15 located in the drying air-stream, whereby to control the air temperature and smooth out any fluctuations thereof. There may be two or more blowers each blower co-operating with a respective heater 9.
Patent GB-836075-A (GB)
Title: Improvements in or relating to tanks and other containers intended to be repeatedly filled with liquids
IPC: B60K15/06
Filed: 1957-11-29
Abstract: 836,075. Filling tanks ; venting-apparatus. ELLIOTT, G. H. Nov. 29, 1957 [July 24, 1957], No. 37247/57. Class 21. [Also in Groups XVIII and XXIX] To enable the supply of liquid to a tank to be cut off when the tank is full, the tank is provided with an auxiliary container, receptacle or compartment normally containing air and into which the liquid supplied to the tank can freely flow when the tank is full, the liquid flowing into the auxiliary container, receptacle or compartment causing operation of an audible or visible indicating or signalling device. As shown in Fig. 1, an auxiliary container 4 is provided in the tank 1 adjacent the lower end of a filler pipe 2. A transfer tube 5 connects the pipe 2 and the container 4, a deflector 6 being provided. The container has a vent 7 fitted with a reed 8 which produces a whistling noise when air is driven up the vent 7 from the container. The container 4 communicates with the tank 1 through a hole 9. A needle-valve 10 carried by a float 11 is provided in a cage 12 below the container. In operation fluid is supplied to the tank 1 through the filler pipe 2, the deflector 6 preventing the fluid from flowing into the transfer tube 5. When the level of fluid in the tank rises up to the float 11, the upward movement of the float causes the needle-valve to close the hole 9. If the supply of fluid is further continued, when the tank is quite full, the extra fluid rises in the lower part of the filler pipe 2 and then flows into the transfer tube 5 and thus into the container 4. Flow of fluid into the container 4 causes displacement of air in the container and a whistling noise is produced by the reed 8. When due to consumption the level of fluid in the tank 1 falls below the elevated position of the float 11 the float and needle-valve will descend, thus opening the perforation 9 and allowing fluid to pass from the container 4 into the tank 1. In a modification the container is mounted on top of the tank, the needle valve and float being dispensed with. A small hole in the side of the container leads into the filler pipe and provides a communication between the container and the tank. In a further modification, shown in Fig. 5, the tank 1 is formed with a compartment 16 communicating with the tank through a hole 17. Fig. 9 shows a modification in which the vent tube 7 and its reed 8 are replaced by a vertical shaft 19 fitted with a turbine wheel 20. When the fluid flows down the transfer tube 5 into the container 4 it will act on the turbine wheel 20 and rotate the shaft 19, such rotation being utilized to cause operation of an audible signalling device, such as a small siren.
Patent GB-625932-A (GB)
Title: Improvements in or relating to methods of press powder moulding
IPC: B28B7/00
Filed: 1946-12-18
Abstract: 625,932. Moulding articles from powder. STANDARD TELEPHONES & CABLES, Ltd., and MAY, F. W. Dec. 18, 1946, No. 37268. [Class 87 (ii)] In a moulding press for ceramic powder slots 13 are provided in the face of the die or the punches to allow powder to escape from parts which are subjected to the highest compression. The press shown produces a rectangular lampholder with a collar and comprises a die 4, Fig. 2, having a bottom punch 5, a central core 6 passing through the punch 5 and fixed to the' press and a top punch 7, Fig. 5, having a sleeve 9 which is forced back during the moulding operation against springs 17 to produce the collar. The yielding of the sleeve 9 produces a light pressure on the powder of the collar therefore slots 13 are provided in the die to compensate for the higher pressure on the powder of the body. The sleeve 9 may be forced back by pins 18 engaging the die. The sleeve 9 ejects the holder from the top punch and the punch 5 from the die.
Patent GB-373992-A (GB)
Abstract: 373,992. Time recorders for workmen &c. HEAP, A. E., 159, Grange Road, Bermondsey, London. Nov. 26, 1930, No. 35560. [Class 106 (iv).] Apparatus of the individual card type comprises a card-punching mechanism, a feeler means cooperating with the card on its insertion into the card holder, and means for preventing operation of the main handle until the feeler has entered a hole previously punched in the card. The card holder is laterally movable to effect impressions in different columns dailv. The card used as shown in Fig. 6 has a number of day columns and a row of holes o previously punched one in each column. When the card is inserted in the holder b, Figs. 1 and 2, the leading edge engages a feeler arm p on a rock-shaft q carrying an arm r connected by a spring to an arm t on a rock-shaft u which carries a feeler v adapted to enter a hole o in the card and arrest its movement. Movement of the shaft u, through an arm 1 pressing on a pin 2 on a detent arm w, rocks the arm w to release a bar x normally supporting and preventing operation of the main handle e. When the handle is freed depression thereof, through a link g and lug k thereon engaging an arm l on the impression hammer c, retracts the hammer until the lug k is freed, whereupon the hammer is suddenly released and effects an impression under spring action. Movement of the link g is produced by its edge engaging a pin i on the framework. At the same time the main handle through linkage 3, 4, 5 operates a punch 6 to perforate the card in the same column as shown at 7, Fig. 6. The card holder is mounted on a bar 10 having a pin 11 engaging the slotted end of a spring-controlled lever 13 which carries a pin 16 engaging a cam groove 17 in a disc 18 rotated by a clock spring to determine the columnar position of the card holder. The spring is attached to the disc 18 and to a winding spindle 19 on which is mounted a ratchet wheel engaging a pawl to prevent backward movement. A step-by-step movement is imparted to the disc 18 by an escapement mechan. ism controlled manually or by clockwork. This mechanism comprises a pivoted member 22 having a lug 24 and a pawl 27 co-operating with pins 35 to a disc secured to the disc 18.
Patent GB-322664-A (GB)
Title: Improvements in or relating to apparatus for preparing pneumatic tyres for vulcanisation
IPC: B29D30/06
Filed: 1928-12-24
Abstract: 322,664. Firestone Tyre &. Rubber Co. (1922), Ltd., (Firestone Tire & Rubber Co.). Dec. 24, 1928. Moulding wheeltyres.-Apparatus for collapsing air bags to enable them to be inserted into tyre covers prior to vulcanizing, c o m - prises co-operating members adapted to engage the inner and outer peripheries of the bag, and by their contraction to flatten and fold the bag, and by expansion to force it into the cover. A frame 12 carries two cross-heads 18, 19, the lower 18 of which is operated by the piston 16 of a cylinder 14, and is connected with the upper through a lost motion. The lower cross head 18 carries a projecting pin 21, and the upper cross-liead 19 carries a pin 22, and pivoted links 24, connected to links 25 pivoted to the frame 12, and carrying at their joint, projecting pins 27. With the cross-heads at the bottom of their stroke an air bag 32 is supported on adjustable members 33, 35, the pin 21 being outside, and the pins 22, 27 being inside the periphery of the bag. On admitting pressure to the cylinder 14, the crosshead 18 rises, until it reaches the upper crosshead 19, Battening the bag between the pins 21, 22. Continued upward movement of the crossheads causes the pins 27 on the links 24, 25 (which in the starting position are almost in a straight line) to swing first outwards and then inwards, folding the bag into the position shown. A cover 37 is now placed in position, and pressure is admitted to the top of the cylinder 14 to draw the cross-heads down, and the pins 27 to move outwards and force the bag into the cover. The pin 21 on the lower cross-head 18 is connected to the piston of a cylinder mounted on the cross-, head. A cam-surface on the frame 12 operates the valve of this cylinder on the down stroke, to admit pressure and retract the pin from between the bag and the cover.
Patent GB-1473711-A (GB)
Title: Apparatus for lifting root crops sown in rows more particu larly sugar beet
IPC: A01D25/04
Filed: 1974-08-30
Abstract: 1473711 Lifting root crops MACHINEFABRIEK J DE JONGE BV 30 Aug 1974 [31 Aug 1973] 38085/74 Heading A1F An apparatus for lifting root-crops sown in rows comprises a frame 1, two transversely extending guides 2, 3 over which bushes 4 to 7 supporting beams 8, 9 can slide. Connecting beams 8 and 9 is a beam 10 on which a number of brackets 11, 12 (Figure 2) are clamped by bolts 13, 14. Mounted with provision for vertical adjustment in brackets 11, 12 are vertical pivots 15, 16 bearing lifting shares 17, 18 and having, at their upper ends arms 19, 20 extending in the same direction as the shares and interconnected via a turn buckle 21 for adjusting the distance between lifting shares 17, 18. Attached to the turn buckle are a pair of collars 22, 23 between which is positioned the free end of a resilient strip 24 attached at its other end to a plate 25 on the beam 10 and designed to move the lifters into a normal working position. Another resilient strip 26 urges the beam 10, with the three pairs of lifting shares, into a normal working position with respect to the frame 1.
Patent GB-1195084-A (GB)
Title: Improvements in or relating to Cylindrical Cutters.
Inventor: KOHLER ALFRED
IPC: B23F21/16
Filed: 1967-08-18
Abstract: 1,195,084. Milling cutters. A. KOHLER. 18 Aug., 1967 [18 Aug., 1966], No. 38151/67. Heading B3K. In a cylindrical milling cutter for cutting gear teeth and having teeth 12 arranged in series, e.g. helically as in a hob, around the periphery of the cutter, at least one of the outer peripherally extending corners of each tooth is formed to provide top and side relief for the tooth the corner being tapered by variation of its radii or incline of the bevel so that the top and side relief increase in the direction of cut. The teeth may be arranged so that alternate corners of successive teeth taper in the same direction and both corners of each tooth may taper in opposite or similar directions.
Patent GB-1366353-A (GB)
Title: Process for the production of thin aluminium strip of sheet
IPC: H01G9/04
Filed: 1971-08-13
Abstract: 1366353 Production of aluminium sheet COMPAGNIE PECHINEY 13 Aug 1971 [16 Nov 1970] 38158/71 Heading B3A [Also in Division C7] A process for the production of aluminium strip or sheet with a preferred cubic texture comprises hot-rolling an aluminium blank, subsequent cold-rolling to give at least 90% reduction, annealing at a temperature of from 180‹ to 350‹ C., cold-working to produce a 5 to 35% reduction, and finally annealing at a temperature of from 300‹ to 650‹ C. to cause recrystallization. The percentage reduction in the initial cold-rolling stage is preferably greater than 95% and the intermediate annealing of the sheet in coil form is carried out over a period of 1 hour- 25 hours at a temperature of from 200‹ to 270‹ C. Further cold-working may involve coldrolling or drawing to produce sheet or strip of less than 0À2 mm. thickness. The fnal anneal is preferably carried out in a nitrogen atmosphere for two hours at 450‹ C. followed by air cooling, and under these conditions sheet containing 0À04% total Fe, Si and Cu was obtained with 70% cubic texture. Examples are given of various conditions of treatment used in order to determine the maximum modification of the crystal structure of the sheet or strip.
Patent GB-966544-A (GB)
Title: Manufacture of pimelic acid
IPC: C07C51/295
Filed: 1960-11-07
Abstract: Pimelic acid is prepared either by reacting a mono-chlorocyclohexane carboxylic acid with aqueous alkali metal hydroxide between 250 DEG and 450 DEG C. and then acidifying the salt thus obtained to liberate the free acid or by dehydro-halogenating alpha-chlorocyclohexanecarboxylic acid with an alkali metal hydroxide at 0-110 DEG C. to obtain an alkali metal 1-cyclohexene-1-carboxylate, reacting this product with aqueous alkali metal hydroxide between 250-450 DEG C. and then acidifying the salt to liberate the free acid. The mono-chlorocyclohexane carboxylic acid is preferably alpha-chlorocyclohexane carboxylic acid.  This alpha acid may be prepared by chlorinating cyclohexane carboxylic acid with sufficient chlorinating agent to monochlorinate 20% of the acid in a non-aqueous phase from 0-150 DEG C. with a chloride, oxyhalide, oxide or oxygen acid of phosphorus, antimony or arsenic as catalyst.  Specified chlorinating agents are chlorine, sulphuryl chloride, phosphorus pentachloride, N-chlorosuccinimide, N-chlorourea and dichlorohydantoin.
Patent GB-1326488-A (GB)
Title: Blade holder
IPC: B26B5/00
Filed: 1971-08-16
Abstract: 1326488 Hand cutting tools; hand tool handles STANLEY WORKS 16 Aug 1971 [11 Jan 1971] 38387/71 Headings B4B and B4K A blade holder 10 comprises a blade carrier 66 within a handle 12 and connecting means 54 releasably securing two parts 14, 16 of the handle 12 together, the means 54 being reciprocable in an unlocked position to move the blade carrier 66 between operative and retracted positions, positionable to allow pivoting of one part 14 relative to the other 16, and lockable to locate the blade carrier 66 and rigidly connect the handle parts 14, 16. A threaded stem 52 of the locking means 54 passes through slots 56, 58 of the parts 14, 16 to engage a nut 64, and also through apertures 74, 50 of the carrier 66 and a spring 44 for holding a blade 40 on a stud 76 of the carrier 66. With the nut 64 tightened, the blade 40 may be fixed in operative projection from the holder 10 or in a retracted position, while release of the means 54 by action on its knurled head allows sliding within the slots 56, 58. With the blade 40 in the fully forward position and the means 54 loosened, the part 54 may be pivoted on the part 16, projections 80, 80<SP>1</SP> runningin a recess 82, allowing removal of the blade 40, e.g. for replacement from a stack 42 within a compartment 24.
Patent GB-1124253-A (GB)
Title: Improvements in or relating to moulds for continuous casting
IPC: B22D11/041
Filed: 1965-09-09
Abstract: 1,124,253. Continuous casting. GEBR. BOHLER & CO. A.G. 9 Sept., 1965 [28 Sept., 1964], No. 38513/65. Heading B3F. A vertical mould, e.g. of copper and for casting iron and steel, has expansion grooves, i.e. narrow machined slots, at least 4 mm. deep in the surfaces defining the mould cavity at least adjacent the melt surface. The grooves are 0À2-0À8 mm. in width, 5-50 mm. apart and may be formed by milling cutters. They may begin 10-50 mm. below the top edge and extend below the melt surface. There may also be horizontal grooves adjacent the melt surface. The mould is a tube, a cast or forged block or an assembly of plates.
Patent GB-818611-A (GB)
Title: Improvements in or relating to hydraulic variable pitch propellers
Inventor: CHILMAN JOHN ALFRED
IPC: B64C11/38
Filed: 1956-12-18
Abstract: 818,611. Variable pitch propellers. ROTOL Ltd. Aug. 14, 1957 [Dec. 18, 1956], No. 38606/56. Class 114. A propeller comprising, in the hub 12, a hydraulic pitch change motor 22, pitch stop means 25 operative to prevent the propeller fining off below a predetermined pitch and stop retaining means 28 displaceable between a first position (shown in Fig. 1) in which said retaining means maintains the stop 25 operative and a second position in which the stop is rendered inoperative, has a fluid pressure operated switch 51 outside the hub, conduit means 46 for communicating the switch with a source of hydraulic fluid under pressure to operate the switch, and hydraulic valve means 34 in the propeller hub, said valve means communicating said switch with a bleed 35 to relieve the pressure of fluid in said switch only when the stop retaining means 28 is in its operative position, the switch being operable only when the pressure of fluid in the switch is unrelieved through the bleed 35. A pump 17 supplies pressure fluid via a constant speed unit 14 and conduits 18, 19 to the pitch change motor 22, and also to a solenoid-operated valve 37 which is energized when it is required to render the stop 25 inoperative to permit fining off the propeller pitch, and to a control valve 39 from which a conduit 44, separate from the motor conduits 18, 19, is taken to a piston 31 for moving the stop retaining means 28 against the action of a spring 29 and to an annulus 33 communicating with said hydraulic means 34, formed by an annular recess in the stop retaining means 28 which recess is normally in communication with the bleed 35. Whenever, intentionally or unintentionally, the retaining means 28 is in the position allowing the stop 25 to be inoperative, the recess 34 is out of register with the bleed 35 so that pressure builds up on the spring- loaded piston 50 of the switch 51 to close the switch so that an indicator light (not shown) comes on. The invention is shown applied to a propeller in which the stop means has two stop positions, i.e. a first predetermined fine pitch position and then a second and finer pitch position. Specifications 742,148 and 818,612 are referred to.