baber/WOPTO huggingface dataset:
Patent GB-1490020-A (GB)
Title: Roll changing device for a rolling mill
IPC: B21B31/10
Filed: 1975-02-17
Abstract: 1490020 Roll changing apparatus WEAN UNITED Inc 17 Feb 1975 [27 March 1974] 6528/75 Heading B3M Apparatus for changing the rolls of a rolling mill or calender includes a carriage 10 on which is mounted a support 20 for engaging the ends 24 of a pair of rolls and holding them cantilever fashion in an extended horizontal position, the support being connected by parallel links 40a and 50 to the carriage and being coupled to a counterweight 40. The counterweight is slightly heavier than a pair of rolls 26 and therefore tends to raise the support 20 and rolls. To lift the counterweight (and hence lower the rolls) a single-acting ram 56, Fig. 4, is operated. A motor-driven jack 58 limits movement of the counterweight and controls its lowering movement. To change the rolls of a mill, the carriage 10 is moved on rails 12 towards the operative side of the mill, and the rolls are withdrawn. The rolls are then deposited on a laterally movable carriage 30 which supports a replacement set of rolls. By aligning the replacement set with the carriage 10 and laterally withdrawing the carriage 30, the new rolls can be inserted in the mill. The support 20 may be provided with only one recess 22, if desired, and the roll sets may have a nested chock construction or may employ chock spacing stools.
Patent GB-229871-A (GB)
Title: Improvements in and relating to vertical water tube boilers
IPC: F22B21/04
Filed: 1924-03-13
Abstract: 229,871. Marks, E. C. R., (Maschinenbau- Anstalt Humboldt). March 1:3, 1924. Water-tube, boilers.-In a boiler having a longitudinal upper drum a and a lower transverse drum b connected by banks of tubes c, spaces d longitudinally of the lower drum are formed between the banks of tubes to afford access for insertion and removal of the tubes. The tubes of each bank are preferably arranged in two rows, the tubes of one row being placed opposite the narrow spaces between the tubes of the other row.
Patent GB-1142091-A (GB)
Title: High sensitivity beam-index target screens and cathode ray tubes embodying same
IPC: H01J29/32
Filed: 1966-02-15
Abstract: 1,142,091. Light guides. D.M. GOODMAN. Feb.15, 1966, No.6540/66. Heading G2J. [Also in Division H1] In a cathode-ray tube in which electromagnetic radiation is picked up from the screen end of the tube as indexing signals in a multi-colour television tube, the radiation is picked up by a light guide constituted by arrays of optical fibres 88, Fig.4, which are incorporated in the tube screen as indexing strips, one associated with each colour triplet R, G, B. The fibres emerge from the top and bottom of the screen 72, Fig. 1, in two arrays 74, 76 which are led along the inside of the envelope wall 80 to the gun end of the tube where they emerge in clusters 78 or possibly in four clusters, Fig.3 (not shown). The fibres may be round or rectangular, single strand or multi-filament. The indexing optical fibres may carry dimples or recesses 94, Fig.4, coated with phosphor material or they may be formed of electron sensitive scintillating glass and the fibres may be placed directly on the tube faceplate, Fig.6 (not shown), or on top of the screen phosphors, Fig.7 (not shown). The fibres may be in two interlaced arrays to pick-up separate indexing signals, Fig.5 (not shown), the fibres being linked together by the rods so that all the fibres may be pre-formed into a single subassembly which is deposited on the screen after the deposition of the colour phosphors. In a further embodiment the indexing optical fibres are in contact with the tube faceplate and the tube envelope constitutes a light guide which leads the optical indexing signals to the gun end of the tube, Figs.8-10 (not shown). In this arrangement the tube neck projects beyond the glass seal containing the pin connections. The indexing optical fibres may be constituted by glass powder material embedded in the faceplate. The strips may be in the same plane as the colour phosphors or they may extend through the phosphor layers or they may be covered with the phosphor layers. Reference is also made to the use of a scanning light beam, e.g. an ultraviolet beam, instead of an electron beam.
Patent GB-1522411-A (GB)
Title: Semiconductor device
IPC: H01L29/423
Filed: 1976-02-19
Abstract: 1522411 Semiconductor devices R C A CORPORATION 19 Feb 1976 [26 Feb 1975 06579/76 Heading H1K In a semiconductor device, connection to a terminal lead from a first region within the semiconductor body is made via an electrode which is also in ohmic contact with a second region, connected to the first region, which has a higher conductivity and is of opposite conductivity type to the first region. In an embodiment, the P-type base region 16 of a transistor, having a collector region 14 and emitter region 18, is connected to a terminal lead 36 via an electrode 32, which is also in ohmic contact with a highly doped N-type region 44 within the base region 16. The electrode 32 comprises a 200  thick Ni film overlaid with solder.
Patent GB-580738-A (GB)
Title: Improvements in or relating to signal transmission systems employing phase or frequency modulation
IPC: H03K7/00
Filed: 1943-04-23
Abstract: 580,738. Frequency and phase modulation. STANDARD TELEPHONES & CABLES, Ltd., and SCULLY, C. T. April 23, 1943, No. 6589. [Class 40 (v)] A phase or frequency modulated carrier wave is generated by first applying the signal to modulate unsymmetrically the duration of repetitive pulses, and then extracting (e.g. by filtering) one of the harmonics of the pulse train to serve as the modulated' carrier, amplitude modulation being removed by controlling the gain of an amplifier. Preferably, the asymmetry of modulation is effected by maintaining either the leading or lagging edge of the pulses unaffected by the signal. Amplitude modulation present in the carrier is removed by automatic control of amplification ; but the amount of such amplitude modulation may be reduced by suitable choice of the width ratio, i.e. the ratio of normal pulse duration to the repetitive period of the pulses. In Fig. 4, the signal source SS is coupled through a network SN to a pulse generator PG from which modulated pulses are fed through an amplifier A to a filter F by which a desired harmonic is selected. The signal is also applied through a rectifier R to increase the gain of the amplifier A as the signal amplitude rises. The amplifier may be placed after the filter and its gain regulated by rectifying the filter output. The network SN is omitted when phase modulation is desired, but for a frequency-modulated output the network should be designed to attenuate signal voltages of higher frequency. The pulse generator may comprise a cascade pair of valves V1, V2 with the signal applied to the grid of V1 in series with a saw-tooth voltage from the source RO, the grid being back-biassed by a source B1. The valve V1 is thus opened for periods depending on the signal voltage, and substantially square-topped pulses are derived from the anode of the valve V2, the pulses being of varying duration with one edge fixed. Preferably, a high harmonic of the pulse frequency is chosen, as it then contains a deeper phase modulation ; moreover, less multiplication of frequency is required.
Patent GB-142605-A (GB)
Title: Improvements in and relating to springs for road vehicles
IPC: B60G11/10
Filed: 1919-03-17
Abstract: 142,605. Ryner, A., and Wilson, W. B. March 17, 1919. Laminar springs. - Front-wheel suspension springs for road vehicles are arranged with the ends of the springs pivoted in bifurcated blocks c which move as pistons in cylinder casings e. Thecasings have internal collars f and are closed at the rear by dust-caps m. The pistons have stem extensions g. At the front end of the spring, the stem passes through a bushing in the collar and carries a resilient or other washer between the piston and collar. At the rear end of the spring, the stem is more extended and carries a helical or other spring behind the collar.
Patent GB-1465263-A (GB)
Title: Packing of foodstuffs in containers
IPC: A23L29/269
Filed: 1974-04-03
Abstract: 1465263 Mould release agent NORTHERN FOODS Ltd 3 April 1974 [10 Feb 1973] 6644/73 Heading A2B Foodstuffs comprising at least one gelled component e.g. blancmange, egg custard or gelled yoghurt are packed into a container in the bottom of which is previously placed a layer of a solution containing xanthan gum such that on inverting the mould and puncturing the base or removing a tear off strip the xanthan gum layer is easily released to demould the gelled foodstuff. The xanthan gum may be dispersed in milk or water to about 1% by wt. additionally with a gellable starch and thus may act as a sauce to the gelled component. A foodstuff coated with a solution containing xanthan gum is claimed per se.
Patent GB-775920-A (GB)
Title: A control unit for controlling the supply of gas under pressure to a gas supply line
IPC: F16K31/143
Filed: 1955-03-07
Abstract: 775,920. Valves. STAMICARBON N.V. March 7, 1955 [March 8, 1954], No. 6647/55. Class 135. A gas flow control unit comprises a valve 15 19 which opens to place the inlet and outlet 1, 2 in to communication and closes to close off the inlet and open the outlet to atmosphere via port 18, a double-acting diaphragm or piston 21 having one of the spaces 25 communicating with the outlet at 7 and the other having an inlet for gas under pressure at 24, the diaphragm or piston and valve being so related that on opening the valve, outlet pressure at 7 acts on the diaphragm or piston to maintain the valve open against a yielding force, e.g. the spring 29, and whereby the valve may be closed by admission of gas under pressure to the other side of the diaphragm or piston. The valve may be opened by manually depressing the button 27 or by supplying pressure at 11 which displaces the ball valve 30 downwards and passes to the piston chamber 25. Outlet pressure then passes along passage 7, displaces the ball-valve 30 upwards and holds the valve open by acting on top of the piston. As valve 15 opens so valve 19 closes the outlet from the atmosphere 18. To close the valve 15 pressure is admitted from passage 13 to displace a ball valve 31 downwards and pass at 24 to the lower side of the piston. The valve 15 may be locked in its closed position by the pressure at 12 lifting the ball valve 13 and acting on the under face of the piston.
Patent GB-456276-A (GB)
Title: Improvements in or relating to hydraulic power transmission apparatus
IPC: F16H41/26
Filed: 1935-03-02
Abstract: 456,276. Hydraulic transmission of power. SALERNI, P. M., 23, Carlton House Terrace, St. James's, Westminster. March 2, 1935, Nos. 6661/35 and 4545/36, (divided out of 456,277). [Class 69 (ii)] In a hydraulic torque converter, the vanes of the reaction member have rounded, bulbous, receiving ends, their thickness t, Fig. 3, being at least one-third of the pitch of the vanes, or one third of the length l. As shown in Fig. 1, the vanes may taper towards the axis of the converter, so that the thickness and length are greater at a point farther from the axis than at a point nearer the axis, and the lines of the extreme front and rear edges, and other lines extending towards the centre intersect at or near the axis. Further, as shown in Fig. 2, the receiving ends have the shape of truncated cones. The vanes may be movable as described in Specifications 425,538 and 456,277, and the passages between them may be as described in Specification 456,306. Specification 436,740 also is referred to.
Patent GB-966745-A (GB)
Title: Improvements in or relating to the securing of handle buttons to containers or container blanks
Inventor: SMITH WILLIAM HENRY
IPC: B23K11/14
Filed: 1960-02-25
Abstract: 966,745. Attaching handles; welding by pressure. READS Ltd. Feb. 27, 1961 [Feb. 25, 1960], No. 6686/60. Headings B3A and B3R. [Also in Division B8] A handle button is attached to a container or container blank by forming embossments on the button and/or the container or container blank, so that when positioned the button and container or container blank make contact at spaced locations through the embossments, and resistance welding the button to the container or container blank. An annular button 10, Fig. 1, having an aperture 15 for one end of a handle has a flange 12 with radial embossments 13 engaging an annular embossment 14 on the container 11. The embossments 13 may be separated on two sides from the flange 12 to form spring fingers 29a, Fig. 10A. Alternatively, the button 10 may have an annular embossment which if desired can be made more resilient by radial slots 27, Fig. 9, and be used with a container having radial embossments. In a modification a flanged channel-shaped button 36, Fig. 13A, has linear embossments 35 which contact two rows of embossments 37, Fig. 14, on the container. Welding is performed by electrodes 16, Fig. 5, and 18 engaging the button 10a and the container 11 respectively and positioned on the same or opposite sides of the assembly but not contacting the welding points. In this way an outer printed label 20 and an inner coating 19 of tin or lacquer is undamaged. Two buttons may be simultaneously welded to a container by engaging the buttons with electrodes of opposite polarity the circuit being completed through a conductor extending diametrically across the container or through the periphery of the container. Alternatively the two electrodes may be in parallel and a third electrode contacting the container completes the welding circuit. In a modification the button 10, Fig. 17A, has point embossments 43 engaging an unembossed container 11. Welding is effected by an electrode engaging the button 10 and an electrode 44 shaving cut-away portions 40 located beneath the embossments 43.
Patent GB-741316-A (GB)
Title: Improvements relating to pirns, bobbins and the like for textile machinery
Inventor: BAYES ALFRED WALTER
IPC: B65H75/18
Filed: 1953-03-12
Abstract: 741,316. Pirns; locating pirns on spindles. ASHTON BROS. & CO., Ltd. March 11, 1954 [March 12, 1953], No. 6784/53. Classes 120 (2) and 120'(3). In order to obtain in spinning frames &c. a standard axial height of the pirns relatively to the yarn-feeding devices, with a non-slip driving engagement between the spindle and pirn, the latter is provided within its lower end with a rubber or like resilient bush having formations, such as cavities or recesses, which allow it to deform if and when its internal bore is expanded, as when the pirn is being forced on to t spindle. As shown, a rubber &c. bush 12 is fitted into the enlarged bore 11 at the lower end of a pirn 10, the bush being provided with longi tudinal grooves 13 separated by rectangular sectioned ribs 14, the outer ends of which are bevelled off at 15 and 16. The inner end of the bush may also be bevelled off at its outer corner 17. If desired, the grooves 13 may be helica and cavities in the form of longitudinal holes within the wall thickness of the bush may be provided instead of or in addition to the oper grooves. The bush may also be formed with external annular grooves. To ensure locatior of the pirns in the correct position on the spindles, a gauge in the form of a flat metal bar 18, Fig. 4, having a number of notches 19, 20 ir one edge thereof may be used.
Patent GB-306294-A (GB)
Title: Improvements in tools for cutting out discs and the like from sheet material
IPC: B23B51/04
Filed: 1928-03-05
Abstract: 306,294. Abel, J. H. March 5, 1928, Drilling-machines ; drills and cutters.-A tool for cutting discs from or holes in sheet metal or other material comprises a head 1 having an annular flange to support a cutter 2 which may be formed from a piece of hack saw or band saw blade. A gap is left between the ends of the cutter to receive a bolt 4 passed radially through the flange and carrying a rectangular nut 5 through which the bolt is secured to clamp the cutter. To accommodate cutters of different diameter rings 3, Fig. 4, are used, the, rings having an external diameter to fit in the flange and an internal diameter equal to that of the hole which it is desired to cut. The head 1 is rotatably mounted on a spindle 7 secured at both ends, the upper end receiving a nut 8A attached to a feeding handle 8 and the lower end serving for attachment to the work 11 by means of a tapped or plain hole in the work and nuts on one or both sides of the work. The feed is transmitted to the cutter through a spring 10 and the head is rotated bv means of a non-circular extension 6 thereon and a ratchet spanner 9. The handle 8 may be secured to the spindle 7 by means of a screw 13, in which case the cutter is fed by rotating the spindle in its threaded hole in the work. The feed device may be arranged at the side of the work remote from the cutter. The Provisional Specification states that more than one screw 4 may be used and the cutter may befed by the device described in Specification 222,171.
Patent GB-214213-A (GB)
Title: Floating trolleys for launching and beaching seaplanes
IPC: B64F1/22
Filed: 1924-03-17
Abstract: 214,213. Rohrbach, A. April 11, 1923, [Convention date]. Ships adapted to run on land.-A detachable floating trolly for launching and beaching seaplanes has at least one of its attaching stays rigidly fixed to the trolly in an erect position. In the arrangement shown in Fig. 1, the trolly comprises a boat-shaped float 7 and a pneumatic wheel 2 mounted upon an axle 1 integral with an upright stay 3. Additional stays 4 arranged in V-shape are also attached to the axle 1. The stays, which are detachably secured to the body or wings of the seaplane, may consist of two telescopic parts 5. 3, Fig. 3, the extending portions 5 being provided with spring pins 16 which automatically enter holes 17 in the lower portions 3 as the seaplane beaches. The pins 16 may be withdrawn by a cord acting upon crossed levers 15. For attaching the stays to the seaplane they may be provided with an under-cut head which after being inserted into a slotted socket on the machine, is rotated by cords to effect a bayonet joint. The Specification as open to inspection under Sect. 91 (3) (a) describes a modification in which the telescopic portions of the stays may be locked in any position by hand-operated devices 9, 10, Fig. 1 (Cancelled), and in which floats 7, 8 are mounted on each side of the trolly wheel. In a still further modification, the wheel 2, Fig. 5 (Cancelled), is elastically mounted in an aperture in a supporting float 19, by means of rubber ties 18. An additional stay pivoted to turn in a horizontal plane is also provided. This subjectmatter does not appear in the Specification as accepted.
Patent GB-138057-A (GB)
Title: Improvements in or relating to tunnelling
IPC: E02D29/063
Filed: 1919-03-19
Abstract: 138,057. Rabut, C. Jan. 18, 1919, [Convention date]. Tunnels.-In subaqueous tunnelling, an independent tunnel A<1>, A<2> is provided for each railway track and prospecting tunnels B, B', B<2> are formed ahead of the main tunnels to obtain data to ensure that the continuations of the main tunnels are placed in the most suitable positions; the prospecting tunnels are so spaced that the zones b, b<1>, b<2> of possible earth disturbance above them do not encroach on the disturbance zones a<1>, a<2> above the main tunnels. All the tunnels are lined as the excavations proceed. The rails are welded end to end and laid on longitudinal sleepers or on soft wood transverse sleepers resting on the tunnel floor or on sand ballast.
Patent GB-757747-A (GB)
Title: Improved spinnable polyvinyl chloride compositions
IPC: C08J3/09
Filed: 1954-03-09
Abstract: The invention comprises solutions of polyvinyl chloride in N-methyl-tetrahydro-furfurylamine and the production of filaments by spinning such solutions into an aqueous solution of N-methyl-tetrahydrofurfurylamine.  The solutions are obtained by adding the polymer to the amine, heating to 45 DEG  C. for one hour and allowing to stand at 18 DEG  C. until the viscosity has risen to the desired value.  Preferred solutions contain 8-14 per cent of polymer.  The coagulation bath becomse richer in amine during the spinning and its composition must be adjusted to prevent the concentration exceeding 75 per cent.  The preferred value is 20 per cent at 18 DEG  C., but spinning may be carried out at any temperature between 1 DEG  and 80 DEG  C.ALSO:N - Methyl - tetrahydrofurfurylamine is prepared by the catalytic hydrogenation of the Schiff's base obtained from tetrahydrofurfuryl-amine and formaldehyde.  The preparation and hydrogenation of the Schiff's base may be carried out in water, in methanol, or in the absence of a solvent.  Suitable conditions using Raney nickel are 60-80 DEG  C. and 60-120 atmospheres.
Patent GB-567576-A (GB)
Title: Improvements in or relating to the preparation of benzene carbonamido alkane sulphonic acids
IPC: A21D2/08
Filed: 1943-04-30
Abstract: Para-substituted benzene carbonamido alkane sulphonic acids of the general formula <FORM:0567576/IV/1> are prepared by treating an o -amino alkane sulphonic acid of the formula NHR.(CH2)nSO3H with a benzoyl halide having X in the para position, or by treating a benzamide parasubstituted by the substituent X with an o -halogen substituted alkane sulphonic acid containing not more than six carbon atoms or with a salt thereof.  In the above formul , X indicates a nitro, nitroso, azo, or hydrazo group.  R is hydrogen or an alkyl, aryl, aralkyl or acyl group and n is an integer not greater than six. The reaction is preferably carried out in the presence of an acid acceptor, such as an aqueous alkali, the alkane sulphonic acid may be taurine, but the treatment of taurine or an N-substituted taurine with an iodobenzoyl halide is specifically excluded from the scope of the present invention.  If desired, the condensation product may be reduced to convert the substituent X into an amino group, the reduction being preferably effected with hydrogen in presence of a hydrogenation catalyst, such as Raney nickel.  In an example, taurine is reacted with p-nitrobenzoyl chloride in the presence of aqueous-acetone sodium hydroxide.  The acetone is removed and the sodium salt of p-nitrobenzamidoethane sulphonic acid separated and reduced with sodium sulphide to give p-aminobenzamidoethane sulphonic acid.  Specification 563,559 is referred to.
Patent GB-679090-A (GB)
Title: Improvements in or relating to lathes and other machines
IPC: B23Q1/70
Filed: 1951-03-22
Abstract: 679,090. Machine tool details. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 22, 1951 [March 25, 1950], No. 6897/51. Class 83 (iii). [Also in Groups XXIII and XXXIV] A lathe &c. has the main spindle subject in the longitudinal direction to relatively different pressures which tend to urge it against a thrust bearing, one end of the spindle being located in a space in which the pressure is lower than atmosphere, the thrust bearing, preferably being located in this space also. The spindle 1 is supported in a bearing sleeve 2a enclosed in a housing 2. A V-pulley 3 drives the spindle which, in a lathe, carries a work-holder 6 at one end with work 8 acted upon by a tool 9. At the other end of the spindle an adjustable thrust bearing 20 is provided in a space 18 recessed in a cover member 11. The space 18 communicates through a conduit 15 with a space in which a pressure lower than atmospheric is maintained so that the spindle is thus held by the pressure difference at its ends, against the thrust bearing. This pressure difference may also be used to draw lubricant through a conduit 16 and along passageways in the bearing 2a to cool and lubricate the spindle. The spindle is stated to be applicable also to milling and grinding machines.