baber/WOPTO huggingface dataset:
Patent GB-1441487-A (GB)
Title: Self-purging centrifuges
IPC: B04B1/02
Filed: 1974-06-10
Abstract: 1441487 Centrifugal separator DONALDSON CO INC 10 June 1974 [20 June 1973] 25590/74 Heading B2P A self-purging centrifuge comprises a drum 10, 12, 14 rotatable about a vertical axis, and having means for e.g. a pipe 40, for introducing into the drum a fluid containing solid particles, e.g. machine tool coolant carrying metal clips means 42 for discharging clarified fluid after separation of the particles, and means for discharging the separated particles; a rotor 18, 20 mounted inside the drum for coaxial but independent rotation therewith, the periphery of the rotor being spaced apart from the interior surface of the drum where particles separated by centrifugal force are deposited; and means, e.g. an air brake 56, to provide an abrupt change in the relative angular velocity between the interior surface of the drum and the periphery of the rotor such that the deposited particles are removed from the said surface under the influence of the resulting change in motion of fluid in the drum, and are thereby re-suspended in the fluid to be subsequently discharged therewith from the drum. The rotor consists of vanes 20 bolted to a pin assembly 18 secured to a shaft 16 which is driven by a motor through belts 36 and a pulley 38. The drum rotates on a bearing 28 mounted in a cover 24 of a surrounding housing 22 and on a bearing 30 mounted in the bottom member 14 of the drum. The rotor rotates in bearings 32 and 34 mounted in the top well 12 of the drum and in bottom portion 26 of the housing respectively. The fluid with suspended particles is fed through the pipe 40 into the rotor and is thrown by the latter towards the drum side wall 10, the fluid rotating with the rotor and the rotating fluid in turn causing rotation of the drum, clarified fluid is discharged via openings 42 in the top wall of the drum and is directed by anti-splash baffles 52, 54 downwardly onto a chamber 44 for removal through an outlet pipe 70. During the purge cycle the brake 56 is actuated and causes a shoe 58 to engage a projection 60 on the drum to slow down or stop the drum. When this is done, the rotating vanes 20 of the rotor disrupt the fluid and the deposited particles become re-suspended in the fluid. As the purge cycle continues the fluid and the re-suspended particles flow inwardly and downwardly along the upper surface 72 of a triangular-shaped annular baffle 62 secured at the bottom of the drum side wall 10, then outwardly through openings in the side wall and openings 27 in the bottom portion of the housing 22, and finally through an outlet 66 in a lower well of the housing. A ring 50 having louvred openings therein is placed over the inside of the openings 42 to prevent escape of fluid and suspended particles through the openings during the purge cycle. During the latter the feed of fluid and particles through the inlet pipe 40 may be shut off or reduced. Instead of the drum, the rotor may be braked.
Patent GB-742760-A (GB)
Title: Improvements in or relating to methods for the production of an insulating layer of foam plastics on an electrical conductor
IPC: B29C48/645
Filed: 1953-09-16
Abstract: 742,760. Coating electrical conductors with plastic material. TELEFONAKTIE-BOLAGET L. M. ERICSSON. Sept. 16, 1953 [Sept. 29, 1952], No. 25610/53. Class 87 (2). In a method for making a foam insulated conductor, the plastic material (e.g. polyethylene, polystyrol, polyvinylchloride, polyvinylchloride acetate) is fed through a heated cylinder 3 by screw 2 where it is heated partly by friction and partly by heat from the cylinder and through a percolator plate 4 where a gas such as propane, butane or methyl chloride, is fed through input 6 to dissolve in the material which then passes through further percolator plates 7, 11, in extrusion head 8, to a heated nozzle 12 where it is extruded and expands around a conductor 9 which may be electrically pre-heated by transformer 15. The percolator plate 4 may be such that gas supplied through feed pipes 18, 19, Fig. 2, is distributed in two halves of the percolator plate by axial and radial channels 20, the material entering through apertures 17 and being pressed out through holes 21. The gas supply zone may be extended in such a manner that the cylinder is provided with several percolator plates and input terminals for the gas or the material may pass to contact with the gas, through a chamber provided in the screw length, Fig. 3 (not shown), and where an alteration of screw pitch or thread may be provided to prevent an accumulation of material. The apparatus may be provided with two or several parallel screws.
Patent GB-823477-A (GB)
Title: Improvements in or relating to bracelets for wrist-watches
IPC: A44C5/14
Filed: 1957-08-14
Abstract: 823,477. Watch bracelets. MULLER, E., [trading as KOLB, W., [Firm of ]]. Aug. 14, 1957 [Aug. 31, 1956; Sept. 8, 1956; Dec. 24, 1956; April 29, 1957], No. 25623/57. Addition to 784,470. Class 43 A wrist watch bracelet comprises two sheath coverings 2 with end openings 3 for the insertion of a leaf spring 1 curved to engage the wrist and a pair of leaf springs arms 7 having fastening means 4, the arms being freely enclosed in the coverings or secured by adhesives or rivetting. The fastening means on the arms 7 may comprise hooks, eyelets or loops. A protective lining 8 may be inserted on the coverings or the coverings may be plastic, heat sealed at the edges with flaps covering the hooks and with an outer covering of leather. The leaf spring 1 may have a covering 10 between the ends of the coverings 2. The hook may have a central recess with lateral parts which engage the ends of a pin passed through a bore on the shoulders of a watch case. So that the pin will fit any size of bore, the pin has opposite screw threads engaging two conical chucks, which may be adjusted in position on the pin according to the size of bore. A cap may fit over the recess. The spring may have a bent recessed end which engages a screw with a stop peg fitted with a screw cap, the screw passing through the shoulder on the watch case.
Patent GB-1310339-A (GB)
Title: Structural polyisocyanurate foams
IPC: C08J9/34
Filed: 1971-04-19
Abstract: 1310339 Moulding cellular articles UPJOHN CO 19 April 1971 [7 April 1970 12 June 1970] 25630/71 Heading B5A [Also in Divisions C3 and E1] Polyisocyanurate foams, optionally containing a reinforcing web element, and having an integrally formed microcellular polymeric outer layer and an inner cellular polymeric core may be prepared by introducing the foam-forming reaction mix into a mould, optionally containing the web element, the mould being closed and having a volume less than that which would be occupied by the resultant foam if allowed to rise freely. Fig. 2 shows a panel (2) having an opening (10) therein formed during the moulding by inserting an appropriate cylindrical projection in the desired place in the wall of the mould in which the panel is prepared. A plurality of such openings (10) can be provided in the panel (2). In Example 2 a self-skinned rigid polyisocyanurate foam is prepared in a mould having a solid cylindrical pin of diameter <SP>1</SP>/ 8  inch and length 1 inch attached by one end to the centre of the inner face of one half of the mould so that it projects into the core of the mould. The foam so produced had a hollow cylindrical cavity in the centre of one face.
Patent GB-1427990-A (GB)
Title: Jet propulsion engine
IPC: F23R3/20
Filed: 1973-05-30
Abstract: 1427990 Gas turbine by-pass type jet engines; re-heat equipment GENERAL ELECTRIC CO 30 May 1973 25668/73 Headings F1J and F1L The invention relates to a gas turbine ducted fan or by-pass type engine and to a flow mixing and re-heat combustion system therefor. The mixing device comprises a corrugated member 22 of increasing depth in the direction of flow, being formed of radial walls 24, circumferentiallyextending walls 25 at the outer periphery and circumferentially-extending walls 26 at the inner periphery, the walls defining first passages 27 for flow of by-pass air as indicated by the arrows 81 and second passages 28 for flow of turbine exhaust gases as indicated by arrows 82, the passages alternating circumferentially. Radial flame-holders 40 of V-section formed by walls 44, 46 are located within the exhaust gas passages 28 towards the outlet ends thereof and a circumferentiallyextending flame-holder 42 is disposed within the turbine exhaust gas flow passage radially inward of the mixer, the radial flame-holders communicating with the circumferential flame-holder. Staged fuel injection means is provided and comprises a first radial injector 50 disposed adjacent and upstream of the apex 47 of each radial flameholder, a second radial injector 52 disposed adjacent the apex 47 within each flame-holder and a third radial injector 56 disposed at the inlet of the mixer device within the turbine exhaust passage. An ignition means 60 is provided. The injectors are connected to annular manifolds 53, 54, 55. The first injector 50 injects fuel upstream of the apex 47 of the circumferential flame-holder 42, the second injector injects fuel into the recirculation zone of the flame-holder, and the third injector injects fuel into the turbine exhaust gas flow at higher engine power requirements. The maximum aerodynamic thickness of the flameholder is indicated in Fig. 5a and is downstream of the open end of the flame-holder; it is arranged that this position of maximum thickness lies in the same plane as that in which the static pressures in the by-pass air-flow and the turbine exhaust gas flow are equal.
Patent GB-937663-A (GB)
Title: Improvements in or relating to the detection of fission products
Inventor: WILSON MURRAY VINCENT
IPC: G21C17/04
Filed: 1959-07-27
Abstract: 937,663. Nuclear reactors. PLESSEY CO. Ltd. July 22, 1960 [July 27, 1959], No. 25674/59. Class 39 (4). A method of detecting and measuring the presence of fission products carried in a gaseous phase comprises electrostatically precipitating the daughter products of the fission products on to an inactive liquid in the presence of a gas phase, and transferring the liquid to an activity counting device shielded from the active gas phase. In the apparatus shown in the Figure gas to be monitored passes from an inlet 13 through a porous sintered stainless steel plate 12 into a precipitation chamber 8 where an electrostatic field maintained between plates 12 and 16 causes any daughter products formed to deposit on the plate 16. Plate 16 is porous and water under pressure passes from an inlet (not shown) to a chamber 20 beneath the plate and then through the plate to collect the daughter products. Gas from the chamber 8 passes through a bore 17 to an outlet, whilst water draining from plate 16 passes into the annular chamber 17B surrounding the bore 17; from there the water passes through a labyrinth 22 formed in a lead shield 6 to a phosphor chamber 23 provided in a shield 7 and then to an outlet. The phosphor chamber 23 is associated with a scintillation counter 25 through the intermediary of a light guide 26. The counter and light guide are surrounded by a massive radiation shield and the whole apparatus is enclosed by a stainless steel container 1.
Patent GB-502688-A (GB)
Title: Improvements in and relating to multiple leaf sliding doors
IPC: E06B3/92
Filed: 1937-09-22
Abstract: 502,688. Collapsable gates. WAYGOOD-OTIS, Ltd., and IRWIN, E. G. Sept. 22, 1937, No. 25738. [Class 45] [Also in Group X] A sliding door comprises a plurality of panels or leaves arranged to slide substantially in the plane of the door into a nested formation, one behind . the other, at the side of the door opening, the leading panel being suspended at its upper edge by means adapted to guide the panel, and the intermediate panels being supported and/or controlled by a collapsable lattice or lazyongs connected to the leading panel. In the construction shown, the leading panel 3 is supported by two rollers 10, 11 movable along a guide-rail 12 at the top of the door opening, smaller auxiliary rollers 15, 16 engaging with the underside of the rail 12 to prevent tilting of the panel. The upper edges of the panels are provided with members 30 which engage in a channel formed by a metal strip 31 attached to the rail 12, and members 28 at the lower edges of the panels engage in a guideway 28 formed in the door sill. As shown in Fig. 6, the edges of the panels are formed with flanges 17 ... 20, which serve for the reception of the pivot pins of the bars 21 of the collapsable lattice. In order to prevent relative transverse movement between the panels, each is provided on the inside with a bar 33 which is engaged by a finger-piece 34 on the outside of the adjacent panel.
Patent GB-430728-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/04
Filed: 1933-09-18
Abstract: 430,728. Discharge devices. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl- Ufer, Berlin) Sept. 18, 1933, No. 25773. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 20, 1934]. Drawings to Specification. [Class 39 (i)] A gas- or vapour-filled discharge device has each of its anodes associated with electrostatic controlling means such as a grid and with a grid which has a constant potential negative with respect to the cathode. The negative grid may be located on either side of the control grid and may be connected to the anode shield, and all the negative grids may be connected together inside the device. In other forms, the control grid may be replaced by an auxiliary anode which is located within the anode shield and surrounds, or is adjacent, the anode. Resistances are connected in the grid circuits.
Patent GB-995208-A (GB)
Title: Strip rolling mill
IPC: B21B37/28
Filed: 1963-06-28
Abstract: 995,208. Rolling. T. A. FOX. June 28, 1963, No. 25787/63. Addition to 904,075. Heading B3M. [Also in Division G3] An improved strip rolling apparatus, as claimed in the parent Specification, includes sensing means adjacent the exit side of the work rolls to measure the thickness of the strip at least at spaced points across the width of the strip, servo means being provided to translate variations in strip thickness into pressure changes in pressure means acting on the ends of the work rolls. Hydraulic cylinders 20 and 21 act as pressure means between the chocks of work rolls 11 and 12 and backup rolls 15 and 15<SP>1</SP>. The strip thickness is measured by fixed or traversing X-ray gauges 40 and 41, or fixed or traversing magnetic gauges. The outputs from the gauges are fed through amplifiers 42 and 43 to servomotors 44 and 45 which control the pressure applied to hydraulic cylinders 46-49.
Patent GB-1434683-A (GB)
Title: Wiping and washing installation for a vehicle windscreen and headlamps
IPC: B60S1/48
Filed: 1974-06-11
Abstract: 1434683 Cleaning vehicle windscreens and head-lamps SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 11 June 1974 [4 Aug 1973] 25799/74 Heading A4F A wiping and washing installation for a vehicle windscreen and head-lamps comprises a reservoir WB and a pump WP for washing liquid and an electromagnetic valve MV which when non- energized permits flow to windscreen washing nozzles WD only and when energized passes the washing liquid to head-lamp washing nozzles SDI, SDr only, the valve MV being controlled by a relay R in the output circuit of an electrical pulse generator JG. The latter is energized via a head-lamp lighting control switch LS and a washer pump switch WaS in such manner that after the switch WaS has been opened the relay R is energized for a predetermined time, a relay control r 2  simultaneously energizing the valve MV and a headlamp wiper motor SWM, whilst a relay contact r 1  maintains energization of the washer pump WP for said predetermined time.
Patent GB-356459-A (GB)
Title: Improvements in picks for coal cutting machines with hard metal cutting edge
IPC: E21C35/183
Filed: 1930-08-29
Abstract: 356,459. Coal-cutting machines. GEWERKSCHAFT WALLRAM, 96, Kruppstrasse, Essen, Germany. Aug. 29, 1930, No. 25843. Convention date, June 30. Addition to 356,396. [Class 68 (i).] In a pick for a coalcutting machine as described in the parent Specification, the parts supporting the hard metal insertion 3 are provided with a hardened surface layer. Preferably the front of the pick is originally overdimensioned so that on insertion of the hard metal into the bore &c. 7, and application of solder, the hard metal is entirely enclosed so as to be protected during the hardening operation; the superfluous metal is then removed.
Patent GB-1314446-A (GB)
Title: Binocular rangefinders
IPC: G01C3/14
Filed: 1970-05-29
Abstract: 1314446 Binocular rangefinder POLAROID CORP 29 May 1970 [4 June 1969] 26055/70 Headings G2A and G2J A camera 10, incorporates a rangefinder 22 which includes a pair of stereoscopically related reticles 52, 54, two eye-pieces 26, 28 for superimposing images of the reticles on the left and right fields of view whereby an observer sees a composite image of the reticles extending along the line of sight so that a first portion thereof appears nearer than a second portion, and adjustable means Fig.4 for varying the apparent position of the composite image along the line of sight so that a selected object in the field of view appears to be at a distance from the rangefinder lying between the apparent distances of the first and second portions of the composite image. The two eye-pieces 26, 28 each comprise a partial mirror 34 and transparent elements 36, 38 having a partially silvered interface 44; light from a lamp 56 passes through the reticles 52, 54 to the eye-pieces wherein reflection by the mirrors 44 and 34 form two stereoscopically related virtual images Fig.3b superimposed on the view through the eye-pieces. The reticles are mounted on plates 88, 82 which are pivotable against the bias of a spring 92. Translation of the reticles along a line parallel to an eye-piece optical axis controls the apparent position of the virtual image relative to the axis: the ocular convergence angle α Fig. 2 increases or decreases according as the image appears to approach or recede from the camera. Movement normal to the axis alters the path length and hence adjusts the magnification and focus of the image. In use, the rangefinder is adjusted until the convergence angle α for the reticles matches that of the selected object, the change in α effecting a proportional change in the apparent spatial separation of the first and second portions: for a given lens, the reticles are configured so that the near and far extremes of the composite image coincide with the limits on the depth of field of the lens 12. In the camera 10, the rangefinder 22 is coupled to the focusing mechanism for the camera objective 12 by gears 100-106 and linkage 24, whereby rotation of gear 100 to focus lens 12 results in linear movement of a projection 138 and consequent pivoting of plates 82, 88 to give the above mentioned parallel and perpendicular adjustment of the reticles (there being only a negligibly small variation in their relative angular orientation).
Patent GB-1524759-A (GB)
Title: Interface for use in a combined liquid chromatographymass spectrometry system
IPC: G01N27/62
Filed: 1977-06-22
Abstract: 1524759 Chromatography HITACHI Ltd 22 June 1977 [30 June 1976] 26175/77 Heading B1H Effluent from a liquid chromatography is nebulised and heated to evaporate the solvent component which is separated from the nebulised sample component for supply of the latter to a mass spectrometer. The heating may follow or precede the nebulisation and the separation may be effected by cooling or by means of a jet separator or both.
Patent GB-409273-A (GB)
Title: Improvements in elastic fabrics
IPC: D03D15/56
Filed: 1932-09-21
Abstract: 409,273. Corsets and girdles. MOORE CO., G. C., Westerly, Rhode Island, U.S.A. Sept. 21, 1932, No. 26256. Convention date, Oct. 27, 1931. [Class 141.] Corsets, girdles, and other garments are made from fabrics which are elastic both lengthwise and transversely and comprise elastic warps and wefts of covered vulcanized rubber and inelastic fibrous threads. The fabric may be made more contractile in the direction of the warp than in that of the weft by employing elastic warps which are thicker, more numerous, or under greater tension than the elastic wefts. A girdle may be made therefrom which has less stretch up and down the wearer's body than across it. A two-way stretch fabric may be combined by weaving with a one-way stretch fabric as shown in Fig. 1, wherein an elastic weft 7 extending only part way across the fabric is used, elastic warps 1 being used throughout the fabric, so that the fabric has parts A to B and C to D that are elastic only in one direction, and a part B to C, which is elastic in two directions. Or two-way and one-way stretch fabrics may be combined by sewing and used to make a two-way stretch girdle or corset with top and bottom one-way stretch cuff portions. Various two-way stretch fabrics are described.
Patent GB-1313429-A (GB)
Title: Penicillins
IPC: A61K31/43
Filed: 1970-06-01
Abstract: 1313429 Penicillins AMERICAN HOME PRODUCTS CORP 1 June 1970 [22 Aug 1969] 26263/70 Headings C2A and C2C Broad spectrum penicillins of Formula I in which Z is amino, protected amino, azido or NO 2 ; R<SP>1</SP> and R<SP>2</SP> are H, C1-C7 alkyl, C1-C7 alkoxy, aryl or aryloxy; and n is 1 or 2, or salts thereof, are prepared by reacting (A) 6-aminopenicillanic acid or a salt or organosilyl or organosilenyl derivative thereof with (B) an acid of general Formula II or a functional derivative thereof, wherein R<SP>1</SP>, R<SP>2</SP>, Z and n have the above meaning and, if desired, a protecting group is removed or an azido or NO 2  group Z is reduced to an amino group. It is preferred to acylate by means of an N-carboxy amino acid anhydride of Formula III wherein R<SP>1</SP>, R<SP>2</SP> and n have the above meaning. The N-carboxy amino acid anhydrides of Formula IIIa may be prepared by the following reaction scheme:- wherein R<SP>1</SP>, R<SP>2</SP> and n are as defined above and Y is -CH= or -CH 2 -CH=. Examples relate to the preparation of N- carboxyanhydrides of 2-amino-, 2-amino-4- butyl-, 2-amino-3-phenoxy- and 2-amino-4- phenyl-, hexahydro-2-indan-carboxylic acids; and the N-carboxyanhydrides of 2-aminodecahydro-3,6-dimethyl-, 2-amino-decahydro- 7-ethoxy- and 2-amino-decahydro-6-methoxy- 2-naphthoic acids.