baber/WOPTO huggingface dataset:
Patent GB-1084791-A (GB)
Title: Improvements in or relating to shaft couplings
IPC: F16D3/60
Filed: 1963-02-21
Abstract: 1,084,791. Shaft couplings. WILLIAM DOXFORD & SONS (ENGINEERS) Ltd., and J. F. BUTLER. March 23, 1964 [Feb. 2], 1963], No. 7086/63. Heading F2U. In an articulated shaft coupling the driving and driven members are connected by pairs of drive transmitting links 16, 19 pivotally jointed together, each of the links 19 having an enlarged portion 24 forming a centrifugal weight operating to reduce torsional oscillations. The driving shaft 10 has a circular flange 31 carrying pivot pins 30 for the links 16 and the members 19 are carried by pins 20 between axially spaced square flanges 15, 16 of a hub 14 secured on the driven shaft 11. Each associated pair of links 16, 19 are pivotally connected by a pin 25. Each weight portion 24 has wings 18a, 18b sufficiently thin to enter the space between the flanges 15, 16, and having flat bearing faces 18c engageable with buffers 23 mounted between the flanges. Under initial load the links 16 are tensioned to rotate the member 19 inwardly so that their leading surfaces 18c engage the buffers 23, but as speed increases the weights 24 swing outwards and reduce the angular displacement between the driving and driven members. The pins are lubricated from an axial supply passage 40 in the driven shaft 11 which communicates with transverse passages 46, 51, 57 and axial passages 47, 54 in pins 20, 25.
Patent GB-494394-A (GB)
Title: Improvements in or relating to a process of preventing scale formation in steam generating plant
IPC: C02F5/02
Filed: 1938-03-07
Abstract: To prevent the deposit of scale in steam-generating plant having a pre-heating stage, the water is treated with lime to remove temporary hardness before it enters the pre-heater and the water in the boiler is circulated through a purifier where it is treated with soda to remove permanent hardness.
Patent GB-736538-A (GB)
Title: Improvements in aerials
Inventor: STRAFFORD FREDERICK RICHMOND W
IPC: H01Q9/08
Filed: 1953-03-16
Abstract: 736,538. Aerials. BELLING & LEE, Ltd. March 16, 1954 [March 16, 1953], No. 7219/53. Class 40 (7). A primary aerial or aerial element consisting of a rigid dipole is formed in two halves linked by a central insulator and is characterized by the fact that the insulator is in two parts, one associated with each half of the dipole, which are interconnectable to locate the dipole halves in their correct relative position and to enclose the connections for a transmission line to the dipole halves. In one embodiment the dipole rods 32, 33 are attached to conductors 16 and 17 which pass through, and have heads 14 and 15 located in interior recesses in, the two parts 1 and 2 of the central insulator. These two portions of the insulator have body portions surrounding the conductors 16 and 17 and semi-cylindrical projections 5 and 6 on one side and hinge arms 7 and 8 on the other. The hinge is completed by bolt 28 provided with a rubber washer 29. For storage and transport the hinge may be opened so that the elements 32 and 33 lie side by side (Fig. 5, not shown). In order to erect the dipole a coaxial feeder is led in a semi-circular groove 22 up the projecting part 6, its outer conductor being in contact with and secured by clamp 25 and its inner conductor fixed by screw 19 threaded into conductor 17. Insulator part 1 has a cooperating groove 21 in its projecting part 5 on either side of which lies a forked spring metal connector 24 attached by screw 18 to conductor 16. Folding the hinge brings the dipole elements into alignment and at the same time the spring piece 24 makes contact with lugs 27 on clamp 25 to complete the connection between dipole element 32 and the feeder A rubber gasket 23 serves to protect the connections from the weather when the dipole is erected and this is held in compression by inserting the projections 5 and 6 into tubular cross arm 40 along which the feeder 41 may be led. A bolt 44 can be used to secure the insulator to the cross-arm. Instead of the two parts of the insulator being connected by a hinge they may be provided with interengaging lugs or co-operating screw threads. Specification 677,108 is referred to.
Patent GB-1450934-A (GB)
Title: Corsslinking process
IPC: B29C48/09
Filed: 1973-02-14
Abstract: 1450934 Cross-linking ethylene polymers DOW CORNING Ltd 11 Feb 1974 [14 Feb 1973] 7316/73 Heading C3P Polyethylenes, copolymers of ethylene with up to 10 mole per cent of propylene, butene-1 or hexene-1 and copolymers of ethylene with up to 50 mole per cent of vinyl acetate or ethyl acrylate, are cross-linked by reacting with a silane of formula RR<SP>1</SP>SiY 2  where R is a monovalent olefinically unsaturated radical attached to silicon through a silicon-carbon bond and composed of carbon, hydrogen and optionally oxygen, Y is a hydrolysable organic radical and R<SP>1</SP> is a monovalent hydrocarbon radical free from aliphatic unsaturation or Y, in the presence of a free radical generating compound of the general formula R<SP>11</SP>CO.OOR<SP>111</SP> where R<SP>11</SP> is a secondary or tertiary alkyl radical, a cycloalkyl radical having more than 4 carbon atoms or benzyl and R<SP>111</SP> is a tertiary alkyl or cumyl radical, at a temperature at which the halflife of the free radical generating compound is less than 6 minutes; and subsequently exposing the product to water in the presence of a silanol condensation catalyst. In examples polyethylene is reacted with vinyl trimethoxysilane and t-butyl perpivalate and the product blended with (1 and 3) a mixture of polyethylene and dibutyltinlaurate and (2) dibutyltinlaurate and cross-linked by immersing in water; (4) polyethylene is reacted with vinyltrimethoxysilane and t-butyl per(sec)octoate and the product blended with a mixture of polyethylene and dibutyltindilaurate and immersed in water; and (5) ethylene/vinyl acetate copolymer is reacted with vinyltrimethoxysilane and t-butyl perpivalate, (6) polyethylene is reacted with vinyl trimethoxysilane and t-butyl perdiethylacetate, (7) polyethylene is reacted with vinyl trimethoxysilane and t-butyl perisobutyrate, (8) polyethylene is reacted with vinyl trimethoxysilane and cumyl perpivalate and (9) polyethylene is reacted with vinyl trimethoxysilane and t-butyl pivalate and the products immersed in an aqueous emulsion of dibutyl tin dilaurate.
Patent GB-966129-A (GB)
Title: Method and apparatus for etching printing cylinders
Inventor: MANNER PAAVO LENNART
IPC: B41C1/02
Filed: 1963-02-22
Abstract: 966,129. Etching. KASTANNUSOSAKEYHTIO OTAVA. Feb. 22, 1963, No. 7338/63. Heading B6J. In a method of etching a printing cylinder in relief, the text and pictures are printed on pigment paper which is attached to the cylinder and developed; the thicknesses of the developed gelatine relief corresponding to the darkest and lightest tones are measured, either directly, by taking a test-piece from the relief, or by a test strip, on which the strongest and weakest densities of the toning surfaces are used, falling on a transparent strip fixed on the cylinder; a mathematical model is then calculated from the above measured data, giving the relationship between the initial specific gravity of the etching liquid, and the amount of water to be added at various times. The cylinder is then etched with ferric chloride solution according to the resulting formula.
Patent GB-287321-A (GB)
Title: Apparatus applicable to coin operated slot machines for preventing and detecting insertion of spurious coins therein
Filed: 1927-03-17
Abstract: 287,321. Cowan, H. March 17, 1927. No Patent granted (Sealing fee not paid). Fraud, preventing; testing coins.-In a coinfreed machine the coin inserted through a slot 3, Fig. 2, passes by way of a tipping shoot portion 5 and a shoot 14 to the releasing mechanism. A magnet 2 surrounds the coin slot and the portion 5 is part of a magnet 4 pivoted at 15 and counterbalanced by weights 17 on a screw 16. A magnetizable disc is arrested by the magnets 2, 4 and presses a spring contact 6 against a contact 7 on the side of the shoot, thereby ringing continuously an electric bell 8, Fig. 1, to give warning of an attempted fraud. A heavy non- magnetizable disc tilts the shoot 5 and does not pass to the shoot 14. A light non-magnetizable disc is arrested by a light spring 11 adjustable by a screw 19. The spring 11 is insulated at its sides from the shoot 14 and is inclined in the electrical circuit through a pivoted switch 19'. A genuine coin rings the bell 8 momentarily when passing the contact 6 and is heavy enough to pass the spring 11 without causing its point 12 to contact at 13 with the shoot 14. A heavy non- magnetizable disc which has not tilted the shoot 5 will close the contacts 12, 13 and cause the bell 8 to ring momentarily a second time thus giving a warning. The coin slot 3 is formed in a door to allow discs to be. cleared from the magnets 2, 4. The switch 19<1> and bell 8 are connected to a dry battery access to which is had through a door at the bark of the machine.
Patent GB-609262-A (GB)
Title: Improvements relating to radial-cylinder rotary pumps
IPC: F04B1/04
Filed: 1946-03-09
Abstract: 609,262. Revolving-cylinder reciprocating pumps. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. March 9, 1946, No. 7417. [Class 102 (i)] In a revolving-cylinder reciprocating pump, the cylinder block is driven from the shaft 5 through an Oldham-type coupling 6 and the eccentrically arranged body 17, 18 is driven through a further Oldham-type coupling 36 from the shaft 5. The pistons 7 have rounded heads 13 that engage slots 15 in shoes 14 that rest against rollers 161 carried by the body 17, 18. The pistons have grooves 25 in which engage flanges 24 on the bodies 17, 18 to hold the shoes against the rollers. The bodies 17, 18 are guided laterally and adjustable by a hand wheel to vary the stroke of the pistons.
Patent GB-817980-A (GB)
Title: A valve for anesthesia equipment
IPC: A61M16/10
Filed: 1957-03-06
Abstract: 817,980. Anaesthetic apparatus. BROOKE, R. March 6, 1957 [March 9, 1956], No. 7438/57. Class 81 (2). [Also in Group XXIX] In apparatus for administering anaesthetics &c. and including a breathing chamber 10, Fig. 1, a soda lime container 11, inhaling and exhaliing tubes 14, 13 respectively, and oxygen and ether vessels 19, 18 connected by a tube 20 to a valve unit 17 attached to a face mask 15, the valve unit comprises upper and lower sections 21, 22, Fig. 3, separated by a ported plate 23. The upper section comprises parallel channels 24, 25, the inhaling tube 14 and the tube 20 being connected to the channel 25 which communicates through a pair of ports 36, controlled by downwardly-opening rubber disc valves 43, with a small dead-air chamber 48, Fig. 5, of, e.g., 10 c.cs. capacity, in the section 22. The exhaling tube 13 is connected to the channel 24 which communicates with the chamber 48 through a pair of ports 35 controlled by upwardly-opening rubber disc valves 42. The channel 24 is fitted with an outlet valve comprising a closure disc 65, Fig. 7, and adjusting screw 64 interconnected by a loading spring 66 and enclosed in a housing 61 adapted to be screwed into a boss on the channel. By means of an adapter, the valve unit may be attached to an endotracheal tube after the patient has been put to sleep by use of the mask. In a modified apparatus for use with infants, the passages 24, 25 have only a single valve and the dead-air space is reduced to 5 c.cs.
Patent GB-1472345-A (GB)
Title: Process and device for making wood-waste board
IPC: B27N3/08
Filed: 1975-02-21
Abstract: 1472345 Making wood-waste board G SIEMPELKAMP & CO 21 Feb 1975 [24 May 1974] 7508/75 Heading B5A In a method of making board from woodwaste and binder, a preformed mat 7 of such material is located in a press 2, 2, between sheets 4 and 6 and cold-pressed; whilst pressure on the mat is sustained, heat is applied to it by one or both sheets; cooling of the mat is then effected by the circulation of coolant through channels 3 of the press platens. The sheet 4 may comprise a conveyer belt or a support coated with a heating layer.
Patent GB-447940-A (GB)
Title: Improvements relating to bobbins for trawl fishing net ground ropes
IPC: A01K75/06
Filed: 1935-03-11
Abstract: 447,940. Trawling. SHAW, E. H., Ashdene, Vicarage Lane, Bowdon, Cheshire, PHILLIPS, J. W., Barton House, Laceby, Lincolnshire, and METROPOLITAN VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London. March 11, 1935, No. 7593. [Class 48] A trawl net roller comprises end caps 4 and a central zone 5 welded together at 6. Extending through the rollers is a tube 2 with flanged ferrules 9. Liquid or solid ballast is admitted to the interior through an orifice fitted with a plug.
Patent GB-1282191-A (GB)
Title: Process for production of polyolefins
IPC: C08F10/00
Filed: 1970-02-17
Abstract: 1282191 Three-component catalysts containing two transition metal compounds VEBA CHEMIE AG 17 Feb 1970 [18 April 1969] 7613/70 Heading C3P Olefins are polymerized in the presence of (a) a mixture of halogen-free organic titanium and vanadium compounds, (b) an alkyl aluminium iodide, which may be formed in situ, and optionally (c) a further aluminium alkyl or alcoholate compound. In examples, ethylene is homopolymerized or copolymerized with propylene, butylene-1 or 4-methyl-pentene-1 in the presence of, e.g. Ti(OC 4 H 9 ) 4 , vanadium oxytricaprylate, and Al(C 2 H 5 ) 2 I, vanadyltriacetate or VO(O 2 CCH 3 ) 3 , Ti(OC 6 H 5 ) 4 , Ti(naphtholate) 4 , Ti(O 2 C.CH 2 .CH 3 ) 4 , or tetrakis(hydroxy - oxo - dihydro - dicyclopentadienyl) titanate, and in some cases with additional organoaluminium compound.
Patent GB-207491-A (GB)
Title: Improvements in sighting apparatus for artillery on aeroplanes
IPC: G01C3/04
Filed: 1923-03-16
Abstract: 207,491. Schneider et Cie. Nov. 25, 1922, [Convention date]. Addition to 195,371. Sights.-The sight-correcting apparatus for guns mounted on aircraft as described with reference to Figs. 11 to 14 of the parent Specification, is improved by modifying the arrangement of the cams H, K, which impart rotation to the objective G" of the sight to apply to the angle of elevation the corrections #, # for tangent elevation and longitudinal component of wind respectively. In the form shown in Fig. 1, the cams H, K are non-rotary and are initially adjusted to bring their pointers h<1>, K<2> on to the appropriate scales by rotating pinions H<3>, k' engaging a fixed rack g<12> which causes the cams to slide along a spindle Y keyed to the trunnion f. The spindle Y has a guide Y' for a crosshead Z' supporting a beam T, T<1> which rocks on the crosshead and carries the spring-pressed plungers T<2>, T<3> which engage the cams. The corrections imparted by the cams are therefore combined into a sliding movement of the crosshead which, through a connecting-rod Z and crank Y<1>, produces rotation of the prism G". When the gun is elevated keeping the target in view, the spindle Y is rotated and through gearing y<2>, y<3>, y<4>, friction clutch y' and crank Y' rotates the sight through the same angle, which angle however is corrected by the angles # and oby the movement of the plungers T<2>, T<3> round the cams. In the modification shown in Figs. 5 and 6, segmental cams H, K are adjustably feathered on the shaft Y and the correcting movement is imparted to the objective by a flexible band Y<10> which passes over the spring- pressed rollers T<2>, T<3> engaging the cams and round a pulley Y' on the shaft Y. The rotation of the pulley Y<8> is communicated to a pulley y<3> on the axis of the objective by a second flexible band Y<4> kept taut by a clock spring.
Patent GB-540800-A (GB)
Title: Improvements in fading compensation arrangements for radio-receivers
IPC: H04B14/08
Filed: 1940-04-29
Abstract: 540,800. Valve circuits ; frequency modulation; copying telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 29, 1940, No. 7657. Convention date, April 27, 1939. Addition to 539,793. [Classes 40 (iii) and 40 (v)] In a telecommunication system employing a frequency modulated sub-carrier which is used to amplitude modulate a radio-frequency carrier, selective use is made of the sub-carrier or its second harmonic to reduce the effects of fading, which is stated to produce the second harmonic. A picture transmitter is shown in Fig. 1. The tone output 2 is varied according to the intensity of light received by a scanner 1 and is rectified at 4 to vary the impedance of valve 5 and hence to vary the frequency of an oscillator 7 ... 10. The output from this oscillator is mixed in valve 12 with the output from a fixed oscillator 6 to give a beat frequency, constituting a frequency modulated sub-carrier which is filtered at 15, amplified at 20 and employed at 211 to modulate a radio frequency carrier which is radiated by an antenna 23. The receiver, Fig. 2, comprises a first stage 25 the detected output of which comprises the frequency modulated sub-carrier and harmonics, and is fed to two channels F, H for the sub-carrier and its second harmonic respectively. The channel F comprises a filter 28, limiter 29, filter 30 and frequency doubler 31 while channel H comprises a filter 34. In this way both channels feed at the frequency of the second harmonic into a selector circuit 33 as in Fig. 5 (not shown) the output of which passes to a limiter 37, frequency detector 38, rectifier 39 and picture recording means 40. The selector 33 is arranged so that if the fundamental sub-carrier signal in channel F fades, the reduced voltage on lines 33<SP>1</SP> allows a pair of gas discharge tubes to operate to block the fundamental channel through the selector and unblock a channel for the second harmonic from filter 34. Suitable forms of limiter and frequency detector are described, Figs. 3 and 6 (not shown). In a modification, Fig. 9 (not shown), the selector circuit is dispensed with and the outputs from the two channels are combined, one of the channels being provided with a network to effect the necessary phase correction. In a further modification, Figs. 10 and 11 (not shown), the transmission comprises both the modulated sub-carrier and its second harmonic and the receiver is tuned to the second harmonic. Thus during fading, the second harmonic due to fading is received.
Patent GB-241792-A (GB)
Title: Improvements relating to means for fixing handles to dust brooms
IPC: B25G1/06
Filed: 1925-03-23
Abstract: 241,792. Goldstein, W. March 23, 1925. Pivo'ted handles.-A broom handle 4 is provided with a resilient extension 5 pivoted on a pin 3 secured to a bar 2 which is provided with pins 6, 6<1> for engagement with a hole 7 in the extension 5, the bar 2 being secured by screws to the stock of the broom.
Patent GB-1468521-A (GB)
Title: Control apparatus
IPC: E05F15/00
Filed: 1974-04-03
Abstract: 1468521 Fluid-pressure actuators; moving air HERGA ELECTRIC Ltd 3 April 1974 [16 Feb 1973 16 July 1973] 7855/73 and 33803/73 Headings F1D and F1N A control system 14, Fig. 1, for a sliding door 2, which has a tubular member 6 along its leading edge, comprises a solenoid 22, Fig. 7, and a relay 24 which are energized when a push-button 26 is depressed. The solenoid causes contacts 18c, 18b to be closed and the relay holds contacts 24a closed so that a door closing motor 4 remains operative when the button 26 is released. Energization of the solenoid 22, Fig. 4, causes a valve 36, Fig. 6, to move up and close a bleed hole 30, which when open allows for expansion and contraction of the air in the system caused by changes in temperature, and also extends bellows 20, Fig. 4. This lowers the pressure in the system and causes a diaphragm 18d to close contacts 18c, 18b. When the tube 6 meets an obstruction a pressure rise is produced in the system which raises the diaphragm 18d, thus opening the contacts 18c, 18b and arresting the door. Fig. 9 shows a "master cylinder" device in which depression of a plunger 122 closes a bleed orifice 120 and compresses a diaphragm 114 to produce an increase in pressure which is transmitted through a line 106 to a slave device. Fig. 11 shows an alternative construction in which a bleed 174 is closed when a member 162 is depressed by gripping it. Pressure is thus increased in a chamber 158. A notch 178 co-operates with a detent to hold the member 162 in the depressed condition.
Patent GB-612729-A (GB)
Title: Improvements in and relating to the lubrication of rotary valves for internal combustion engines
IPC: F01L7/08
Filed: 1946-03-13
Abstract: 612,729. Lubricating rotary valves. BRIGGS MANUFACTURING CO. March 13, 1946, No. 7907. Convention date, Jan. 12. [Classes 7 (ii) and 7 (vi)] In a rotary valve, oil is conveyed to a circumferential oil groove located at one end of the valve-bearing surface and a conduit within the valve-seating body conveys. oil at predetermined times from said groove to the other end of the bearing surface. As shown in Fig. 9, which is a development view of the valve surface of a frustro-conical rotary valve, when an orifice 39 in the valve housing registers with the parts 36a, 36b of a zig-zag oil groove 36 on the valve, oil discharge outlets 40, 41 register with parts 36c, 36d and oil circulates through the groove and is discharged through conduits 42, 43 to an oil sump 24. Further, a duct 48 registers with a groove 36e, and oil flows through a conduit drilled within the valve seat 12 to a groove in the bottom part of the valve housing, the oil discharging through the passage 43. Hence the upper part of the valve bearing is lubricated twice each revolution and the lower part once. The valve, having a coolant such as sodium in a cavity 21, is driven from a gear 32 through a toothedring 31 meshing with a disc 27 having teeth 28 engaging the valve stem 23 a spring 26 acting on the disc 27 to hold the valve to its seat.
Patent GB-1191398-A (GB)
Title: Circuit Arrangement for Operating Electric Typewriters.
IPC: B41J25/02
Filed: 1968-02-19
Abstract: 1,191,398. Selective signalling. EICHNER ORGANISATION G.m.b.H. 19 Feb., 1968 [11 March, 1967], No. 7924/68. Heading G4H. Operation of the type levers of an electrictypewriter is controlled by a circuit comprising a plurality of function-supervisory circuits, at least one of which prevents operation of a further type lever until operation of a previously actuated lever has been completed. The circuit also causes repeated operation of a type lever if the initial strike attempt is not completed in a predetermined time.
Patent GB-374858-A (GB)
Title: Improvements in and relating to laundry ironing machines
IPC: D06F67/04
Filed: 1931-03-14
Abstract: 374,858. Ironing-machines. BAKER PERKINS, Ltd., Willesden Works, Hythe Road, Willesden, and OWEN, R. J., Westwood Works, Peterborough. March 14, 1931, Nos. 7935 and :.2214. [Class 138 (ii).] In an ironing-machine wherein a number of padded rolls 3 coact with concave beds, the feeding end of the machine is provided with a heated polished member between which and an endless apron or ribbons supported beneath the polished member the articles are passed. The endless apron or ribbons pass over a guide roller situated in front of and spaced from the polished member. The member may comprise a heated polished roll 5, Fig. 1, and the articles are carried on an apron or ribbons 8 which pass over a guide roller 9 in front of the machine and are supported by a plate having an arcuate portion 6 beneath the roll and an extension 7. Guide rollers 10 are provided for delivering the articles adjacent the nip of the first, ironing roller and bed 4. Alternatively the member may comprise a heated concave bed 16 having a convex feeding edge 18 and located over a padded roller 12 which is of smaller diameter than the ironing rollers. Endless ribbons 14 pass between the roller and the bed and around guide rollers 13, 15, the former of which directs the articles to the first ironing roller. Scraping means may be provided for removing the starch collecting on the roller 5, and the bed 16 may be moved away from the padded roller 12 so that its under surface may be cleaned.