baber/WOPTO huggingface dataset:
Patent GB-1002569-A (GB)
Title: Improvements in or relating to hydraulic control systems
IPC: B29C45/82
Filed: 1962-06-13
Abstract: 1,002,569. Controlling injection moulding machines. D. T. N. WILLIAMSON, G. ORLOFF, D. J. BARBER, and MOLINS ORGANISATION Ltd. June 10, 1963 [June 13, 1962], No. 22706/62. Heading B5A. In an injection moulding machine wherein plastic material is injected under pressure into a cavity formed in two halves 29, 30 of a mould 6, a closing force is applied to the mould halves which is proportional to the pressure of the plastic material and to the effective area of the mould cavity. In operation, the mould halves are closed by a piston 28, thermoplastic material M is metered into a heating cylinder 2 and fed to the front of cylinder 2 by rotation of a screw plunger 4. Low pressure fluid from a valve 17 is fed to a piston 10 and the material M is forced into the mould. The locking force for the mould halves is provided by fluid fed from a high pressure valve 16 through a combined multiplier and variable pressure reducing valve 36 which adjusts the pressure so that the locking force is just sufficiently greater than the pressure within the mould. The component 36 comprises a body 45 (Fig. 2) provided with three openings 67, 68, 69 and a bore 46 in which slides a spool formed from three pistons 47, 48, 49. High pressure fluid is fed through openings 67 and as the spool moves downwardly under the action of a spring 53, the fluid is admitted to the space below piston 49, forcing the spool upwardly. Eventually a position is reached where the forces are equal, determining the fluid pressure in the opening 68 and hence on the piston 28. The downward force exerted on spring 53 is determined by the combination of the force on a piston 65 and the position of a nut 62. The former is due to pressure fluid fed to the valve through pipe 39 and opening 63 from valve 17, and hence is proportional to the pressure within the mould 6. The position of the nut 62 can be adjusted by the hand setting regulator 41, the movement of which is calibrated so as to be proportional to the area of the mould. In an alternative arrangement (Fig. 3, not shown) the downward pressure on the spool 47, 48, 49 is determined by an electrical voltage which varies as the pressure of the material within the mould and the area of the mould.
Patent GB-732816-A (GB)
Title: Improvements in drawbar couplings for vehicles
IPC: B60D1/07
Filed: 1953-08-19
Abstract: 732,816. Vehicle couplings. HITCHCOCK, J. C. July 20, 1954 [Aug. 19, 1953], No. 22839/53. Class 103 (5). A tractor, having a hook 10 which may be lowered to engage a conventional eye-type coupling on a trailer, may be provided with a draw-bar attachment which will enable it to be connected to other types of trailer couplings. A trailer having a bifurcated coupling 13 may be connected by a pin-and-slot arrangement to a plate 3 forming part of the draw-bar, which drawbar also comprises side members 1 attached by means of a pin 6 to extensions 11 of the hook, and a cross-rod 2 which in the coupled-up position engages within the hook. If, however, the trailer has an eye coupling, then the eye is brought under the draw-bar to lift it about the pin 6 to enable the eye to engage the hook.
Patent GB-490164-A (GB)
Title: Improvements in or relating to coding and decoding machines
IPC: G09C3/00
Filed: 1937-08-20
Abstract: 490,164. Ciphering-apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 20, 1937, No. 22885. Convention date, Aug. 27, 1936. [Class 146 (ii)] Ciphering and deciphering apparatus comprises a primary machine such as a typewriter connected through a number of coding-elements to a secondary machine, the coding- elements comprising circuit-changing devices which are set individually under the control of mechanisms adapted to be operated singly or in selected combinations. Each coding- element 6, Fig. 1, comprises a series of brushes 7 carried by a fixed insulating-ring and adapted to engage conducting-segments on a ring rotatable with a shaft 14. The segments are connected to slip-rings rotatable on the shaft 14 and engaged by brushes 8. Depression of a key in the keyboard T<1> of the primary typewriter closes a circuit from the battery 15 through the normally-closed switch 16 and the elements 6, leads 19, 20, 21, normally-closed switches 22, and leads 23, 24 to the solenoids 3 operating the keys of the secondary typewriter T<2>. Depression of the keys of the primary typewriter also actuates one or more permutation bars similar to those of a Baudot transmitter to close corresponding contacts 5 whereby magnets 10 are energized to step forward the corresponding element 6. For deciphering, the ciphered message may be typed on the primary typewriter, and the plain message received by the secondary typewriter, but since the closing of the contacts 5 depends on the letters of the plain message, the switch 28 is operated, so that the switches 5a actuated by the keys of the secondary typewriter control the energization of the magnets 10 ; alternatively, the ciphered message may be typed on the secondary typewriter, the switch 28 being in the original position, but the switch 31 closed to energize magnet 17, thus closing switches 25, 26 and opening switches 16, 22. To reset the machine to original position at the commencement of a ciphering or deciphering operation, switches 33, 34 are closed. Each element 6 carries a brush 38 moving over a ring 37 having a single conducting segment 39. If any element is not in home position, closing of switch 34 connects battery 36 to magnet 10a through switches 43, 41, thus opening switch 43, and moving the element forward one step. The de-energization of the magnet again closes the switch 43, so that the element is moved forward step by step until the brush 38 engages the segment 39, when the battery 35 energizes magnet 40 and opens switch 41 to prevent any further energization of magnet 10a. In order further to complicate the code, the elements 6 may carry discs 50, Fig. 2, having movable plugs 52 which may be set arbitrarily to close switches 60, whereby when any of the contacts 5 are closed on operation of a key, a magnet 10 other than the one directly connected to the contact is energized.
Patent GB-531948-A (GB)
Title: Method of and means for manufacturing mouthpiece filter plugs for cigarettes
IPC: A24C5/47
Filed: 1939-08-09
Abstract: 531,948. Cigarette-making machines. MULLER, J. C. Aug. 9, 1939, No. 22969. Convention date, Sept. 17, 1938. [Class 130] [Also in Group XVI] In making mouthpiece filter plugs for cigarettes from a strip formed of several layers of crepe paper, the strip is unwound from a spool 2 longer than the width of the strip and on which it is wound in overlapping layers. The spool may be reciprocated so that the strip 1 leaving the spool remains in the same horizontal plane. As shown, the spool comprises a core 25 and flanges 26. The strip passes over guide plates 5 and a length severed by knives 6, 7 is pushed by a sliding rod into a folding channel 8 leading to a channel 11 in which a plunger 12 forms the plug. The plug is then forced by a horizontal plunger into a length of cigarettepaper tube on a spool 15 on an intermittently rotated disc 14, and the tube is severed by shears 21 and delivered on a conveyer 24.
Patent GB-1100612-A (GB)
Title: Improvements in or relating to bronchial dilators
IPC: A63B23/18
Filed: 1965-05-31
Abstract: 1,100,612. Bronchial dilator. C. E. G. LUNDGREN and I. J. A. LICHTWECKERT. 31 May, 1965 [4 June, 1964], No. 22984/65. Heading AST. A bronchial dilator which may be carried in a patient's pocket and which is illustrated with reference to Fig. II, comprises a housing 1 which may be connected to the patient's respiratory system, e.g. by a mouthpiece 2, an air inlet 3, 4, 5, and air outlet means comprising a spring-loaded or elastic valve 6 to 13 and a valve having an adjustable passage area 14-17, the elastic valve having a larger capacity and working at a higher pressure than the adjustable valve. The spring-loaded valve may be adjustable. Means may be provided for supplying medicine to the inhalation air.
Patent GB-170151-A (GB)
Title: Improvements in chain-making machines
IPC: B21L15/00
Filed: 1920-08-04
Abstract: 170,151. Johnson, J. Y., (United States Chain & Forging Co.). Aug. 4, 1920. Making chains; bending-formers; shearing- adjuncts.-In a machine for cutting-off lengths of rod or wire and bending them round a former into links to form a chain, the rod or wire x is fed by the apparatus shown in Figs. 1 and 5. By means of the cam 14, and actuating a slotted lever 26, a slide 35 is reciprocated on a bracket 25 at the side of the machine. The slide carries straightening rollers 37, 38 and a pair of grippers 30, 34. Before the slide is moved to the right in Fig. 5, a cam 15 depresses a gripper 41 to prevent the rod from being moved with the slide. The first movement of the lever 26 opens the jaws 30, 34 and the slide is then moved to the right in Fig. 5, and the rod is straightened by the rollers. Before the slide is moved to the left the gripper 41 is raised, and the jaws 30, 34 closed so that the rod is fed with the slide. The rod is fed between a pair of rollers 49, Fig. 16, and a pair of studs 50, the upper ends of which have semi-circular parts cut away, all mounted on a slide 47 reciprocated by a cam. When the slide is moved to the right in Fig. 16, a knife 93 cuts off a link-length of rod. A former 65, shown in cross-section, is now lowered by a cam, and the slide 47 is then moved to the left so that the rollers 49 bend the rod x<1> round the former. The studs 50 are then rotated to bends the ends of the rod, as shown in Fig. 19. A split finger 78, Fig. 12, is pushed forward by a cam to grip the link, and the former raised. Whereupon the finger is rotated through 90‹ by rack-and-pinion gear actuated by the cam 88, Fig. 1. The link x<2> is thus turned into the vertical position, and is held in this position by the finger 79, Fig. 12, which is actuated by a cam and presses the link into a groove in the former. A further length of rod is fed through the link, which is then released by the finger 79 so that it hangs freely on the rod or wire and the cycle is repeated.
Patent GB-1271103-A (GB)
Title: PROCESS FOR THE PREPARATION OF alpha,beta-UNSATURATED KETONES
Inventor: THOMSON JAMES BERNARD
IPC: C07C45/30
Filed: 1969-05-06
Abstract: 1,271,103. α,#-Unsaturated ketones. BIOREX LABORATORIES Ltd. 28 April, 1970 [6 May, 1969], No. 23070/69. Headings C2C and C2U. α,#-Unsaturated ketones are prepared by dissolving an ethylenically unsaturated compound having a free allylic methylene group in a watermiscible or water-soluble ether (which may be cyclic or acyclic) containing water, and stirring with N-bromosuccinimide and calcium carbonate under visible light irradiation from tungsten or fluorescent lamps. The examples relate to the production of compounds of the oleanane, D-friedo-oleanane, ursane, cholestane and ergostane series.
Patent GB-321451-A (GB)
Title: Improvements in periodically controlled mechanism for advertisement and other purposes
IPC: G09F11/23
Filed: 1928-08-10
Abstract: 321,451. Marples, S. A. Aug. 10, 1928. Feeding, and driving means for record surfaces. -Advertising transparencies &c. 6 mounted on a disc, drum, &c. a rotated through gearing 23, 21, 22, 20, 19, 18, 17, 15, 13, 12 by a spring 24, are combined with a clock 3. A translucent screen 8 may be provided on which advertisements are in sequence optically projected after reflection from a mirror 7. Intermittent movement of the disc is secured by a crank, eccentric. or cam 16 in the gear train which oscillates a connecting rod the free end of which carries a cross pin which takes over the teeth of a ratchet wheel on a separate gear train and spring which control the clock hands 3a, 3b. The crank 16 can thus turn freely through one half revolution, but is restrained during the other half revolution for an interval determined by the clock. To reduce friction of the cross pin on the teeth of the ratchet wheel the connecting rod may rest on guides or be suspended by a link, or the teeth of the wheel may be of tangential form. A gravity pawl 45 engages notches 46 in the disc a to register the transparencies, and a flexible connection between the pinion 13 and its spindle 14, or play between the teeth of the pinion 12, 13, allows partial rotation of the crank 16 to take place while the disc a is locked. The connecting rod may be bent to form a spring and reduce shock when engaging its ratchet wheel. In a modification the clock train may be driven by the spring 24, a flexible drive being provided between the two trains of gear wheels. The transparencies &c. 6 may be mounted on the disc a between angle pieces or in slides, and may comprise kinematograph films with or without sound effects, or charts &c. marked by a pen &c. operated by the train of gear wheels. A number of lens projection systems with or without a number of discs a may be provided. The mechanism may be employed for electric switching, or for imparting impulses for any purpose.
Patent GB-284558-A (GB)
Title: Electric signalling circuits
IPC: G01S1/02
Filed: 1927-09-02
Abstract: 284,558. Submarine Signal Corporation, (Assignees of Turner, E. E.). June 20, 1927, [Convention date]. Thermionic relays.-In a system for measuring distances in submarine signalling, the moment of arrival of the signal at the receiver is indicated by transmitting the sound impulse received through an electronic relay circuit in which the impulse can be effectively impressed only in one direction and an indicator 20 is operated by the rapid change of current in the plate circuit of a thermionic valve 13 brought about by the rapid building up of the potential of the grid of the valve through an oppositely impressed potential on the grid of a prior valve 12 upon which the change of plate current in the valve 13 reacts to increase the rapidity of production of the indication. The grid of the valve 12 is given a negative potential to reduce the plate current so that the relay will only respond to positive impulses and a resistance 16 common to the plate circuits of the valves 12, 13 and the grid circuit of the valve 12 produces the reaction effect since the greater part of the current flowing through it consists of the plate current of the valve 13. A detecting valve 11 precedes the valve 12 to ensure .that the received impulse is in the correct direction. The detector is actuated through an amplifying-valve from a transformer 6 in circuit with a' microphone 1 and a filter 2 for suppressing undesired sounds. The indication is given by a spark across a gap 20 which is connected to the plate circuit of the valve 13 through a step-up transformer 21. The normal condition of the circuit is restored after the indication through the grid of the valve 13 being connected to the positive side of the lowtension battery. According to modifications : the detecting-valve works on the anode bend and has its plate connected to a potentiometer across the low-tension battery to limit the strength of the signal fed to the relay (Fig. 2, not shown); the valve 12 is resistance coupled to the valve 13 and the normal condition is restored, after a signal has been received, by a key connected across the resistance (Fig. 3, not. shown).
Patent GB-231246-A (GB)
Abstract: 231,246. Ewijk, L. J. G. van, and Prins, H. J. Jan. 2, 1924. Developing and after-treatment.-The process of producing reversed images from developed but unfixed silver images by removing the developed image, exposing a second time to light, and redeveloping, is modified by effecting the second exposure to light before the primary negative image is removed. A non-staining developer such as metol-hydroquinone (formula specified) is used for the first development, and an intense and clearly-acting developer, such as glycin, for the second. The second exposure to light is regulated in known manner in accordance with the characteristics of the sensitive layer. The removal of the primary image is effected by known baths, such as that containing bichromate and nitric acid. The process may be applied to the production of kinematograph pictures, lantern slides, enlarged duplicate negatives, and positives on paper.
Patent GB-302305-A (GB)
Title: Tapping device for electrical furnaces
IPC: F27D3/18
Filed: 1928-08-11
Abstract: 302,305. Siemens & Halske Akt.- Ges. Dec. 14, 1927, [Convention date]. Furnace details.-In a furnace having a tapping electrode 2 supplied with current from a bus-bar 12 the current collector for the electrode makes resilient contact with the bus-bar 12 and the contact pressure is adjustable by gearing. The bar 12 is bolted to iron rails 13 and is carried by insulators 11 mounted on a joist 10 carrying runners 9 on which a frame 30 is mounted for movement parallel to the bus-bar. The current collector comprises a hood 15 separated from a cylinder 17 by a spring 16 and connected by a cable 29 to the electrode. The cylinder 17 is mounted on a member 21 capable of vertical movement in a sleeve 22 carried by the frame 30, and having a screwed end 23 engaging a screwed socket formed in a bevel wheel 26 gearing with a wheel 27 on a shaft fitted with a handwheel 28. The electrode is mounted for vertical or pivotal movement on a frame 4 having rollers engaging a joist 6 carried by the frame 30. One electrode may co-operate with a number of furnaces.
Patent GB-1306044-A (GB)
IPC: C08F10/00
Filed: 1971-04-19
Abstract: 1306044 Polymerizing olefins SOLVAY & CIE 19 April 1971 [5 March 1970] 23239/71 Heading C3P  Olefins are polymerized in the presence of a catalyst comprising (a) at least one organometallic or organosilicon compound and (b) a solid obtained by reacting a support comprising silica and/or alumina with excess of (1) a compound MR n X m-n , where M is aluminium or magnesium, R is a hydrocarbon radical containing 1 to 20 carbon atoms, X is hydrogen or halogen, n is at least 1 not greater than m and m is the valence of M, or (2) an alkyl aluminium diene polymer, separating and washing with an inert solvent the solid reaction product, reacting the washed solid reaction product with an excess of a halogen-containing transition metal compound containing at least one halogenmetal bond, and separating the resulting product. The support may be reacted with a trihydrocarbyl aluminium, a hydrooarbyl aluminium halide or hydride, an alkyl aluminium diene polymer, dihydrocarbyl magnesium or hydrocarbyl magnesium halide, and subsequently with a halide, oxyhalide or alkoxyhalide, e.g. of titanium, vanadium, zirconium or chromium. Component (a) may be an alkyl lithium, magnesium, zinc, aluminium, tin or silicon, an alkyl aluminium hydride, an alkyl aluminium halide or a reaction product of a trialkyl aluminium or dialkyl aluminium hydride with a diolefin. Specified olefins are ethylene, propylene, butene-1, 4-methylpentene- 1 and hexene, which may be copolymerized with aliphatic and alicyclic diolefins. Polymerization may be effected in the gas phase, in a liquid diluent or in excess liquified monomer, optionally in the presence of molecular weight modifiers, e.g. hydrogen, diethyl zinc, diethyl cadmium, alcohol or carbon dioxide, and specific gravity modifiers, e.g. titanium and vanadium alkoxides. The polymers are suitable for extrusion and extrusion-blowing. Examples describe the polymerization of ethylene in the presence of hydrogen and catalysts comprising (a) triisobutyl aluminium and (b) reaction products of titanium tetrachloride with prereaction products of (1 and 4) alumina and ethyl magnesium chloride, (2) silica and ethyl magnesium chloride, (3) alumina and triethyl aluminium and (5) silica and triethyl aluminium.
Patent GB-614852-A (GB)
Title: Improvements in cigarette lighters
IPC: F23Q2/08
Filed: 1946-08-06
Abstract: 614,852. Frictional lighters. BEECH, E. E., and PEARLMAN, B. Aug. 6, 1946, No. 23319. [Class 75 (iii)] A pocket or table lighter is provided with a hinged cover 3 from which depends a pivoted arm 15 having a projection 15<1> engaging a partially rotatable operating member 10 mounted on the spindle 8 of the friction wheel 5. On manually opening the cover 3 the operating member 10 is rotated anticlockwise by the arm 15 until it is released and returned by a spiral spring housed between the friction wheel 5 and the spindle 8. A leaf spring 16 urges the arm 15 to rotate anticlockwise so that on closing the cover 3 it slides over the top of the operating member 10 and on opening the cover 3 it abuts against a plate 12 partially closing the cover 3. The operating member 10 is U-shaped and rotates the flint wheel 5 by means of a one way clutch to ignite the wick.
Patent GB-532037-A (GB)
Title: Improvements relating to the control of soot blower installations of steam generators
IPC: F28G15/00
Filed: 1939-08-12
Abstract: 532,037. Electric motor controls for soot blowers. HOPKINSONS, Ltd., BROWN, R. L., and DALE, W. B. Aug. 12, 1939, No. 23334. [Class 99 (ii)] [Also in Group XXXVII] A control unit for the soot blower installation of a steam generator comprises a cubicle having a face panel with a diagram a of the steam generator thereon, the positions of the blowers g on the diagram being indicated by lights connected to grouped control switches b so that a light is exhibited at any blower which is in operation and a similar light at the appropriate control switch. An automatic switch r for the sequential operation of the blower heads has a wheel s for optional manual operation. A hooter t operates when any blower is in action beyond a pre-determined length of time.
Patent GB-813570-A (GB)
Title: Process for the manufacture of sheets of polymers of olefinic compounds free from plasticizers
IPC: B29C43/24
Filed: 1955-08-12
Abstract: Thermoplastic material free from plasticizer, which does not spread rapidly to full roller width, is fed to a four roller calender as a sheet having a width at least 85 per cent. of the working breadth of the calender and is passed through at a speed of at least 15 metres per minute.  The method is used for sheeting polyvinvyl cloride or polymers of other olefinic compounds with stabilizers, lubricants and filling or colouring material but no plasicizer.  The material is advantageously fed immediately from the rolling mill to the calender without substantial loss of heat.  The four calender rollers are disposed vertically above one another, following the milling rollers, all the rollers being provided with heating means.
Patent GB-172687-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02B75/36
Filed: 1920-08-10
Abstract: 172,687. Franks, E. A., and Hansen, S. W. Aug. 10, 1920. Cylinders, cushioning.-To flatten the peak of the indicator diagram a loose piston b takes the place of the cylinder cover and is supported from the bed-plate by bolts d and a cross-head e and springs g, h.
Patent GB-1215562-A (GB)
Title: A liquid cooled dynamoelectric machine
IPC: H02K9/19
Filed: 1969-05-08
Abstract: 1,215,562. Liquid cooling of dynamoelectric machines. BENDIX CORP. 8 May, 1969 [5 June, 1968], No. 23518/69. Heading H2A. The disclosure is generally similar to that in Specification 1,211,660, but differs in that secured between the rotor pole windings 8 are wedges 45 having channels 47 connected to the rotor helical grooves 28 for the circulation therethrough of a portion of the cooling liquid. Such connection is made via a circumferential shaft groove 42 and openings 43, and channels 44, 48 in the rotor core laminations 9 and an insulating member 49; this liquid, together with that discharged by the slingers 36, 40 over the rotor end windings, then passes through openings 57 in bands 52 retaining the wedges and end windings, to be thrown centrifugally on to the stator winding 7. The wedges 45, 50 may be of Al, and the surface adjacent the winding has an anodic insulation coating.