baber/WOPTO huggingface dataset:
Patent GB-188179-A (GB)
Title: Improvements relating to gas fireplaces and gas fires for domestic and other uses
IPC: F24C3/04
Filed: 1921-10-19
Abstract: 188,179. Hassall, W. Oct. 19, 1921. Gas fires.-The refractory back A of an incandescent gas fire is formed with a series of plane surfaces a, b, c. arranged at different inclinations one above another in order to direct the heat into the room. The lowermost surface a is directly heated by the radiants B which stand against ribs or bosses C. As shown in Fig. 4, the radiants mav rest on the inclined face of a block H, in order to throw the heat upwards, in which case a second series of substantially upright radiants L may be arranged above them, being heated by burners K arranged in recesses h in the back of the block H. The radiants B may be provided with holes only or mainly' on the side nearest the block H. A lip f on the front of the hollow base containing the burners diverts the intense heat at the base of the radiants from the floor. The inclined face of the block H together with the top and bottom front edges may be curved in various ways, Figs. 9 and 10 showing one form in which the face and top edge are convexly curved so that the radiants B are all of the same length, the radiants L being arranged in convex formation.
Patent GB-1106747-A (GB)
Title: Forming shrink film closures on filled receptacles
IPC: B65B7/16
Filed: 1965-06-30
Abstract: 1,106,747. Sealing covers to filled containers. LILY CUPS OVERSEAS Ltd. 30 June, 1965 [10 July, 1964], No. 27796/65. Headings B8C and B8D. In a method of applying a cover to a filled open-mouthed container, heat shrinkable film is laid across the mouth with free areas on all sides, the free areas are trapped between opposed plates and heated and then released to contract about the container mouth. An unheated area 106 having a cut 105, Fig. 10, may be arranged in the free areas to facilitate opening. The area may be provided with colour indicia. One form of apparatus for carrying out the method has container supports 35 with film gripping upper surfaces, e.g. of neoprene, against which the film is pressed by heated plates 52 on a pivoted frame 29. The frame also carries knives 42, 53 for severing the film and further knives 51 for forming the opening cuts 105. The plates 52 have apertures 55 to leave the areas 106 adjacent these cuts unheated. Needles 79 are provided to form gas escape holes in the closures. In operation, a transparent film is drawn manually from a roll 25 beneath a weight 44 and across the container mouths. The frame 29 is lowered and raised after a second or so to permit the heated film to grip the rims. In other arrangements, similar to that shown, the heated plates may be mounted for downward pivoting by pantograph linkage, Fig. 21 (not shown). In another arrangement for a single container, the latter is supported directly on the machine base and a lower aper. tured gripping plate (147), Fig. 22 (not shown), is pivoted down to provide a film support about its rim. The upper heated plate is mounted as in the embodiment of Fig. 1 and the lower plate is connected to it by lost motion links (149) so that after the lower plate has abutted stops, the upper plate may descend in a continued pivotal movement, the film having previously been drawn across the lower plate. Where container supports are used, these may be changed for various shapes of container, Figs. 12-19 (not shown), as may the heated plates. Containers may be of plastics or paper and comprise a frusto-conical lower portion joined to an upper dish-shaped portion, Fig. 10. They may be of frusto-conical shape with generally triangular rims, Figs. 15, 16, 17 (not shown), or of a rectangular basket shape with the rim sides curved outwardly, Fig. 12 (not shown). Reference has been directed by the Comptroller to Specifications 827,246, 922,338 and 1,065,098.
Patent GB-158690-A (GB)
Title: Improvements in or relating to lifting devices for tramway and like heavy vehicles
IPC: B66F3/08
Filed: 1919-11-10
Abstract: 158,690. Blake, R., and Pringle, W. B. P. Nov. 10, 1919. Supports for vehicles. - A screw jack for raising tramcars and like heavy vehicles is pivotally mounted on a structural part so that when out of use it can be swung laterally and inverted above the structural part. When in use the lower side of the structural part is engaged by the head of the jack, which is automatically locked against movement by the projection i. As shown the lower screw is attached to a base-plate p formed with claws r and with a rib s to engage the tram line. The upper screw is connected to an L-shaped member e, f provided with a pivot d which engages slots g in a pair of standards b bolted to a girder a of the vehicle. The slots g are closed by removable plates h. When not in use, the jack is turned up into position shown in broken lines.
Patent GB-1419512-A (GB)
Title: Presensitised lithographic material
IPC: B41N3/03
Filed: 1972-01-07
Abstract: 1419512 Presensitized lithographic material KODAK Ltd 2 Jan 1973 [7 Jan 1972 19 April 1972] 27933/75 and 27934/75 Divided out of 1419511 Heading G2C A presensitized lithographic material comprises a support, a hydrophilic layer containing poly (vinyl alcohol) and/or other synthetic polymer latex or latices as a binder and the hydrolysis product of an alkyl orthosilicate, and over the hydrophilic layer a light-sensitive layer containing a polymer. The hydrophilic layer may contain colloidal silica, fumed silica, fumed alumina, particles of titanium dioxide or other heavy metal oxide having an average diameter of at least 200Š or particles of alumina or clay having an average diameter of at least 200Š. The hydrolysis product is preferably obtained by hydrolysis of tetraethyl orthosilicate in an acidic medium. The hydrophilic layer is preferably coated at a pK of 7-9. The light-sensitive layer may be a silver halide emulsion layer capable of being etch-bleached after exposure and development, or a light-sensitive polymer which may be negative - or positive-working (See the light-sensitive compositions described in Specification 1191906).
Patent GB-1376166-A (GB)
Title: Apparatus for encouraging emulsification
IPC: B01F7/00
Filed: 1972-05-22
Abstract: 1376166 Scavenging vessels BRITISH PETROLEUM CO Ltd 22 May 1972 [15 June 1971] 27941/71 Headings B7A and B7V [Also in Division B1] Apparatus for emulsifying oil on the sea surface comprises a drum as 4a, 4b supported by floats 2a, 2b and rotated by motors 3a, 3b, the drum surface being capable of agitating the sea surface. The drum may be made of perforated or expanded metal. Emulsifying agent may be fed from tank 8 along channel 9 to shaft 1 and dispensed through orifices therein. The apparatus may be towed, or self-propelled by the rotation of the drum. Alternatively the drum may be used with a conventional ship, e.g. between the hulls of a catamaran.
Patent GB-499680-A (GB)
Title: Improvements in or relating to artificial teeth
IPC: A61C13/10
Filed: 1937-10-14
Abstract: 499,680. Artificial teeth. BLEICHER, S. Oct. 14, 1937, No. 27961. [Class 81 (ii)] An artificial tooth A having a central tube T, is formed with a groove g extending round its lingual. half, and with a recess or aperture a opening into the groove and intersecting the tube T. The groove and recess respectively receive the curved portion i and the central prong s of a trident-shaped gold clasp B. A pin P fitting within the tube T passes through a hole h in the prong s. The groove g and recess a are arranged at such an angle as to lie in a plane perpendicular to the bucally or labially directed chewing forces. In an incisor tooth the groove and recess are arranged at an acute angle to the central tube. The ends of the clasp are reinforced at p, Fig. 1, to facilitate soldering adjacent clasps in constructing bridgework.
Patent GB-1463485-A (GB)
Title: Pallets
IPC: B65D19/00
Filed: 1973-06-13
Abstract: 1463485 Load handling pallets G P G HOLDINGS Ltd 10 June 1974 [13 June 1973] 28153/73 Heading B8H A pallet for use in the handling of kegs or other substantially cylindrical articles comprises longitudinally extending wooden cross bearers 1 to which are secured upper and lower main bearers 2, the latter being individually moulded in plastics material, the upper main bearers 2 having recesses 3 for receiving kegs while the lower main bearers 2 have similar recesses for resting upon a keg. The bearers 1, 2 are secured by means of bolts 6 and drive screws 7. In an alternative construction of pallet the recesses (3) at the upper and lower side of the pallet are formed in one-piece main bearers, Fig. 3 (not shown), which are each moulded as a one piece in plastics material and have ports (8) spaced therealong in which the wooden cross bearers 1 are received, as well as apertures (9) for receiving the tines of a fork lift truck. The side walls of the ports (8) are tapered at a small angle (α), Fig. 5 (not shown), to permit a limited amount of rocking movement between the main and cross bearers if the main bearers are subjected to shock loading. A pallet may comprise both forms of main bearers.
Patent GB-1344348-A (GB)
Title: Composite units for use in a dewatering unit for a paper-making  machine
IPC: D21F1/48
Filed: 1971-06-16
Abstract: 1344348 Paper-making FELDMUHLE ANLAGEN-UND PRODUCTIONS GmbH 16 June 1971 [16 June 1970 28 May 1971 (2)] 28203/71 Heading D2A  A dewatering unit of a paper-making machine comprises a plurality of sub-units disposed in contiguous side-by-side relationship across the width of the machine wire, the sub-units comprising carriers 6, 7 on which are mounted bar segments 12 of a wear-resistant sintered hard material, preferably having a hardness of 7 Mohs, e.g. aluminium oxide. The wire-contacting surfaces of the segments 12 are substantially coplanar, and the unit may be subject to a vacuum. The segments are secured by bolts 14 which pass through slots 11 permitting longitudinal adjustment of the segments, the bolts engaging with spiral springs disposed in tappings 13. In a second embodiment, Fig. 3 (not shown), the segments are secured to the carriers by notched pins driven into the carriers and extending into the segments where they are fixed by a twocomponent adhesive based on an epoxy resin. The segments may also be secured to the carrier by an adhesive. In a third embodiment, Fig. 4 (not shown), the carriers are bolts passing through the segments which have bushes extending beyond the sides of the segments for receiving the bolts and spacing the segments along the bolts. The segments may be secured to the bushes by an adhesive, and distance pieces may be disposed between adjacent bushes. Adhesive joints may be coated in acid-proof chlorinated rubber.
Patent GB-1483958-A (GB)
Title: Bleaching composition
IPC: D06L3/02
Filed: 1975-07-04
Abstract: 1483958 Germicides containing hydrogen peroxide adducts KAO SOAP CO Ltd 4 July 1975 [3 Oct 1974] 28262/75 Heading A5E [Also in Division D1] A stable powder bleaching or germicide composition comprises (1) the adduct 4Na 2 SO 4 . 2H 2 O . NaCl and (2) an activating agent capable of reacting with hydrogen peroxide in aqueous solution to form an organic peracid, the weight ratio of (2)/(1) being 99/1 to 1/99 and the sum of (1) and (2) comprising 20 to 100% of the composition. The activating agent may be selected from glucose pentaacetate, octa-acetylated sucrose, triacetin, acetoxybenzene sulphonates, triacetylcyanurate, tetraacetylethylenediamine, tetraacetylglycoluril, phthalic anhydride, succinic anhydride and mixtures thereof. The remaining components may be 0-10% surfactant, 0 to 80% neutral inorganic salt (sodium sulphate or sodium chloride), 0-30% alkaline inorganic builder salt and 0-10% organic builder. The optional components are also specified in Specification 28263/75.
Patent GB-682005-A (GB)
Title: Improved means for indicating temperatures of and for feeding a treating medium to remote positions inside a stack or the like
IPC: G01K13/10
Filed: 1949-11-04
Abstract: 682,005. Wire-wound resistors; temperaturevariable resistors; casings and enclosures for resistors. MIEVES, A., and KENNEDY, A. Oct. 9, 1950 [Nov. 4, 1949], No. 28290/49. Class 37. A device for ascertaining temperatures of remote sources comprises a lance constituted by an assembly of collinear tubular members, detachably connected together, one of which has a point or probe and contains near the probe end a resistance winding, each tubular member embodying a pair of conductors insulated from one another within the tubular member but so connected throughout the length of the lance as to constitute leads from the said resistance to suitable external electric temperature measuring means. The central bore of the lance may be used to supply cooling or heating fluid to the source being measured. The lance comprises a tubular member 1 having a probe 5 and carrying a resistance winding beneath the cover 25a, a tubular member 2 having a handle 13 and any desired number of intermediate members 3. The tubular members are suitably threaded (as at 4 and 4<SP>1</SP>) for connection together and each has a thin inner concentric tube 20 (see Fig. 4) insulated from the main tube 30 by material 25 and extended at one end to form a plug 20a (Fig. 1) which fits a corresponding socket in the opposite end of the inner tube 20 of the adjacent tubular member. Thus the outer and inner tubes 30 and 20 form continuous conductors throughout the length of the lance and at the probe end are connected to a resistance 21 as shown in Fig. 4. A sleeve 23 is screwed at its ends 23a into the outer tube 30 of the tubular member 1 and into the pointed probe 5 and carries two insulating collars 24 separated by a cylindrical metallic distance-piece 25a. The resistance 21 is wound on insulation 22 in the space between the cover 25a and the sleeve 23 and its ends are connected by leads 30c and 20c to tubes 30 and 20 respectively. Near the handle end of tubular member 2 the twin conductors 20e, 30e of a flexible lead are connected to the tubes 30 and 20, Fig. 6 (not shown), and serve to connect the resistance 21 in series with a battery and milliammeter which may be calibrated directly in temperature. The outer tube 30 of the member 2 is prolonged beyond the handle 13 and formed as a plug 7 to receive flexible tubing which may supply cooling or heating fluid (e.g. CO 2 ) via the central bore of the inner tubes 20 to apertures 6 in the probe 5 and hence to the source to adjust the temperature thereof. The inner surface of the central bore may be insulated. An electrical unit for heating the flow of fluid, if desired, is described, Fig. 9 (not shown). If necessary, the outer tube of each section of the lance assembly can have an insulating coating, or, alternatively, two internal concentric insulated tubes may be provided as conductors instead of utilizing the outer tube 30.
Patent GB-925087-A (GB)
Title: Improvements in brake or other power cylinders
Inventor: LINDSTROM GEORGE ADAM
IPC: F16J10/02
Filed: 1959-08-19
Abstract: 925,087. Brake cylinders. AMSTED INDUSTRIES Inc. Aug. 19, 1959, No. 28386/59. Class 103 (1).  A brake cylinder 10, fixed by lugs 12 to a vehicle frame, includes two pistons 30 separated by a circlip 18. Piston-rods 32 which may be integral with the pistons, slide in bushes 52 in cylinder end caps 44 held in recesses 46 by circlips 54, a flexible boot 56 being fixed to the rods 32 and caps 44; a bore 58 in each cap and a slit in the boot enables air to escape from the cylinder when the pistons are moved apart by the admission of pressure fluid through connection 28, Fig. 1, rods 26 on either side of this connection extend into the cylinder to prevent circlip 18 rotating to block connection 28. A sealing ring 38 of channel-shaped crosssection is mounted in a recess in each piston adjacent a piston ring 36. The ring 36 and bushing 52 maintain the piston axis coaxial with the longitudinal axis of the cylinder.
Patent GB-927680-A (GB)
Title: A boiler plant for the production of electrical energy from low-grade fuels
IPC: F23C1/00
Filed: 1961-08-04
Abstract: 927,680. Burning refuse. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Aug. 4, 1961 [Aug. 10, 1960], No. 28407/61. Class 51 (1). [Also in Group XIII] In a steam generator fired with a low-grade fuel such as refuse and supplying superheated steam to a turbine driving an electric generator the evaporating surfaces comprise radiantly heated tubes lining a combustion chamber whilst the superheater, and reheater where reheating is used, is located in a separate chamber fired with coal, gas or oil, combustion gases from the steam heating chamber passing into the said combustion chamber to promote therein combustion of the low-grade fuel. In the form shown the low-grade fuel is fed to a reverse feed grate disposed below a combustion chamber 2 lined with steam generating tubes. The hot gases discharge from the chamber through a lateral pass and a down pass respectively locating a primary superheater 3 and a feedwater preheater 4 and two-stage air preheaters 5. A separate combustion chamber 6 fired by coal, gas or oil contains a superheater, and reheater where reheating is used, a high excess of air being introduced so that the combustion gases discharging from the chamber 6 over the grate provide secondary air for the gases formed thereon, the flow of gases also serving to dry and to ensure reliable ignition of the low-grade fuel on the grate.
Patent GB-1056519-A (GB)
Title: Sealing device
Inventor: LLEWELLYN WILLIAM ALVA
IPC: F16J15/34
Filed: 1964-07-09
Abstract: 1,056,519. Mechanical seals. MORGANITE CARBON Ltd. June 9, 1965 [July 9, 1964], No. 28455/64. Heading F2B. In a rotary shaft seal comprising a sealing member of resilient material having a body portion 1 secured to the shaft and a continuously outwardly flaring skirt portion 2 having at its free end an edge 3 that makes sealing line contact with an annular counterface, either the edge 3 is non-circular and the sealing member is concentrically mounted on the shaft or the edge 3 is circular and the sealing member is eccentrically mounted on the shaft. The sealing member may be of natural or synthetic rubber or, preferably, butadiene acrylonitrile copolymer and the body portion 1 is reinforced by a spring 4. The term " non-circular " is defined in the Specification as including any continuous line other than a circle that is everywhere outwardly convex and a closed loop having one or more discontinuities, the portions between which are straight or outwardly convex and the angles formed by adjoining portions at the discontinuities being not less than 120 degrees, e.g. straight-sided polygons of six or more sides. Preferably, the edge 3 is elliptical or, alternatively, a continuously arcuate line having three or four peaks.
Patent GB-970547-A (GB)
Title: Called-line tone-signalling system
IPC: H04Q3/00
Filed: 1961-08-04
Abstract: 970,547. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Aug. 4, 1961 [Aug. 5, 1960], No. 28471/61. Heading H4K. A line connector (final selector) is provided with means for signalling to a busy called line that the latter is being called and further means are provided for preventing such signals from reaching the line with which the busy called line is connected. The busy-calling signal may take the form of a V.F. signal in the range 1100 -1200 c.p.s. which can be applied to a busy line, it being prevented from reaching the other line of the connection by inserting a suitable band-reject filter into the line as described below, by maintaining such a filter in the line (Fig. 3, not shown) or by a straightforward momentary disconnection of the line (Fig. 4, not shown). Operation.-The up-and-around connector is set in the usual manner by tens and units digits received over the preceding switch train, and busy earth on bank S (105) brings up BU. The latter causes reversion of busy tone and unbalances the outgoing speech conductors. In the connector already in use by the wanted party, this unbalance operates either 205 or 201 (according as the wanted party is either a calling or a called party). Relay 203 is thereby operated to insert a band-reject filter C1F in the speech path. In the connector through which a call is being attempted, operation of the busy relay BU also applies a busy-call V.F. signal from CT to the tip conductor of the busy line, this signal being heard by the relevant called party but, due to the intervention of the filter, not by the other party. After a short time relay 210 releases to remove the unbalance and busy-call signals. Upon hearing the busy and busy-call tones, the calling and wanted parties respectively hang-up and the calling subscriber then attempts the call again. Provision may be made for withholding busy tone for a short period so that if the wanted party immediately hangs-up, the new call may be extended at once.
Patent GB-207949-A (GB)
Title: Improvements in or relating to screw propellers, windmills and the like
IPC: B64C11/24
Filed: 1922-10-19
Abstract: 207,949. Ireland, A. J. T. Oct. 19, 1922. Screw propellers.-In the manufacture of metal air screws the blades are formed from a tube of convenient cross-section which increases in size from root to tip, and at the tip triangular pieces are cut out, the tube being then pressed or moulded into its aerofoil section and the edges at the tip being welded or otherwise united. The tube is preferably of tapering thickness. The former on which the tube is shaped is constructed of three or more pieces which can be successively withdrawn at the root. The tube may be seamless or made from a plate with one seam. Stiffening distance-pieces may connect the inner surfaces of the blade faces. A seamless tube of diminishing thickness and increasing diameter has triangular pieces 17, Fig. 8, removed, the parts being drawn together and welded, Fig. 7, or triangular pieces instead of being cut out are folded in Fig. 8. In place of a graduated thick. ness in one tube, a laminated construction may be used with a larger number of laminations at the root. The blades are shaped on a three-piece former 18, 19, 20, Figs. 11 and 12, the centre part 19 having parallel sides and being capable of removable at the butt end, after which the remaining parts 18 and 20 can be withdrawn. Hollow distance-pieces 21 are inserted into the blades when formed and are loosely heM in position opposite holes in the blade faces. The pieces are finally secured by turning in the edges 29, Fig. 15, of the holes and inserting a rivet 25 which is headed at 26. Alternatively the rivet is screwed at both ends and tapered nuts screwed thereon into the flared opening formed by turning in the edges. Additional diaphragm stiffeners may also be used.