baber/WOPTO huggingface dataset:
Patent GB-243559-A (GB)
Title: Improvements in and relating to illuminating appliances
IPC: F21S13/00
Filed: 1925-01-14
Abstract: 243,559. Dorey, W. A. Jan. 14, 1925. Shades and reflectors; lenses.- An illuminating appliance suitable for use in shop windows where the greatest intensity of light is required immediately below the source with considerable intensity up to high angles within the window, and a rapid falling of intensity on the side towards the window glass comprises a reflector having its axis passing through the light source at a considerable angle td the axis of the lamp bulb and a cover or screen which is secured to the bottom of the reflector and is formed on its outer surface with concentric refracting prisms having their centre at a point between the axes of the reflector and the lamp bulb. Fig. 1 shows an illuminating appliance in which the glass reflector 5 is formed on its outer surface with radial double reflecting prisms 8 and on the lower part of its inner surface with transverse refracting prisms 10. The mouth of the reflector is closed by a shallow glass cover 11 having its outer surface 13 formed with concentric prisms having their centre 14 between the axis 2 - - 2 of the bulb 1 and the axis 6 - - 6 of the reflector. The arrangement of the cover relatively to the light source is such that the section 17 of the cover on the window glass side of the reflector will give a greater concentration of the light than the opposite section 18. The upper surface of the cover 11 may be formed with shallow flutings parallel to the plane containing the axes 2 - - 2, 6 - - 6 so as to diffuse the light laterally. Fig. 5 shows another form of the illuminating appliance comprising a metal reflector 38 having its upper portion similar in contour to the reflector 5, Fig. 1, and its lower portion 40 formed at such an angle as to depress the reflected light equivalently to the prisms 10.
Patent GB-606378-A (GB)
Title: Improvements relating to portable engine driven compressor sets
IPC: F04B39/06
Filed: 1946-01-14
Abstract: 606,378. Air compressors. HYMATIC ENGINEERING CO., -Ltd., (formerly HEYWOOD COMPRESSOR CO., Ltd.), MOREILLON, A. E., and HUNT, J. A. Jan. 14, 1946, No. 1207. [Class 8 (i)] [Also in Group XXVII] A portable reciprocating compressor b, Fig. 1, driven by a two-stroke internal-combustion engine a (see Group XXVII) with which it shares a common crank-case and crank-shaft k with the pins at 180 degrees, and wherein the shaft k propels a fan d for supplying cooling air beneath a cowl f on the fan casing through fins g, h on the heads and cylinders of both the engine and the compressor is characterised by the engine and the compressor being mounted in a tubular frame 4, Fig. 2, which acts as an after cooler for the compressed air and the means, whereby the set is carried. A dipper p on the connecting-rod big end dips through a slot in a screen p into oil to give splash lubrication of the compressor.
Patent GB-160980-A (GB)
Title: Improvements in direct acting rotary fluid pressure engines
IPC: F01D1/34
Filed: 1920-01-14
Abstract: 160,980. Hussey, H. Jan. 14, 1920. Screw motors.-The sleeve d of the rotor secured to the shaft e carries two or more pairs of helical vanes v, the vanes in each pair being oppositely inclined one to another. Driving-fluid, for example steam, enters the casing a through the ports o<1> and exhausts the pipe p. To prevent leakage of pressure radially, the peripheries of the vanes may be connected together by a tubular sheath. If desired, the shaft e may be made hollow and fixed, the driving fluid being introduced through the shaft, and the vanes secured to the casing, which in this case rotates.
Patent GB-1329672-A (GB)
Title: Image pick-up tube including an electron gun having current- limiting means
IPC: H01J3/02
Filed: 1972-01-11
Abstract: 1329672 Electron guns PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Jan 1972 [14 Jan 1971] 1242/72 Heading H1D In an electron gun for a camera tube adverse effects caused by coulomb interactions at a cross-over point are reduced by reducing the current at that point by providing on the cathode current-limiting means which limit the effective emissive area of the cathode to a portion which is less than 25% of the area of the control grid aperture. As described the central emissive area of a planar cathode is bounded by a non-emissive area which may be but need not be circular; this may be so wide that the outer area of the cathode does not contribute to the electron beam, or alternatively the outer area may be rendered non-emissive. The central area may be less than 0À1 mm<SP>2</SP>. or even than 0À01 mm<SP>2</SP>. If the the camera tube has a large dark current a diaphragm may be provided in the plane of the cross-over to allow passage of not more than 25% of the electrons without at the same time limiting the area of the cathode which contributes to the beam, which may be limited to 10 ÁA. The camera tube may be of the vidicon or of the SEC type.
Patent GB-975279-A (GB)
Title: A method of and apparatus for continuous freeze drying
IPC: F26B15/00
Filed: 1962-01-12
Abstract: 975,279. Vacuum freeze drying. LEYBOLD-ANLAGEN HOLDING A.G. Jan. 12, 1962 [Jan. 19, 1961], No. 1277/62. Heading F4G. In a method of continuous freeze drying, the material to be dried is conducted through a tubular vacuum-drying chamber having at least two longitudinal zones which are arranged to be at least partly isolated from one another, the process being controlled by producing in the zones predetermined levels of pressure and/or temperature which correspond to the required degree of dryness of the material in the zones. Material to be dried is conveyed through a tubular vacuum drying chamber 1 on linked trolleys 7 having baffles 20 thereon which conform to the cross-section of the chamber so as substantially to divide it into zones 2, 3, 4, in which the pressure and/or temperature can be controlled by evacuating means 17, 18, 19 respectively in accordance with a predetermined pressure and/or temperature programme. Vacuum gauges 14, 15 and 16 are provided, indicating the pressures in each zone and heatexchange devices (not shown) may also be utilized in each zone.
Patent GB-864657-A (GB)
Title: Improvements relating to electrical plug-in type contact pins
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R13/428
Filed: 1958-01-14
Abstract: 864,657. Two-part couplings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 14, 1959 [Jan. 14, 1958], No. 13568/58. Class 38 (1). A pin contact comprises a strip of resilient metal bent transversely to form a pair of arms 2, 3, the outer ends of which are outwardly bent to form flanges 4, 5 whilst lugs 6, 7, 8 are bent out from the edges of the arms intermediate their ends. The lugs and flanges are adapted to snap into engagement with opposite faces of a panel 10 when the pin is pushed through an aperture 9 therein as shown in Fig. 4. The panel may have a printed circuit thereon to which the contacts are dip-soldered (Fig. 5, not shown) or it may form part of the body of a plug with circularly arranged contacts (Fig. 7, not shown). Where the contact is to be dip-soldered, the inner ends of the arms 2, 3 may be covered with a resist to prevent them being wetted by solder. In another construction (Fig. 9, not shown) the arms 2, 3 are formed with longitudinal ribs to increase their rigidity.
Patent GB-584652-A (GB)
Title: Improvement in brushing and cleaning apparatus for carpets and the like
IPC: A47L11/33
Filed: 1945-01-17
Abstract: 584,652. Carpet sweepers. LINDEROTH, E. T. Jan. 17, 1945, No. 1455. Convention date, Jan. 21, 1944, [Class 138 (i)] A carpet sweeper of the kind in which the brushes 4 - are arranged in a dust-collecting receptacle 1 fitted with a cover 2 provided with a pivoted operating-handle 17 is constructed with a locking-device for securing the cover 2 to the receptacle 1 which is controlled by the position of the handle 17 and is so arranged that the cover is unlocked when the handle 17 is moved from the operating position shown in full lines to the raised position. In one form, a hollow post 9, Fig. 1, projecting from the centre of the receptacle is formed with apertures 11, one of which is engaged by a spring-pressed bolt 12. The handle 17 is mounted in a bracket 21 and, when moved counter-clockwise from operating position, a projection 19 attached to the handle engages a projection 20 on an abutment member 16 connected to the bolt and the bolt is withdrawn. The bracket 21 serves as a stop to limit the upward movement of the handle 17. In Fig. 4, a solid post 23 with a continuous groove 27 replaces the post 9, and the locking-member 28 is moved into locking position by a cam projection 31 on the handle which engages an abutment 29 on the member 28. A projection 31 engages an abutment 30 to release the locking device.
Patent GB-204997-A (GB)
Title: Improvements in or relating to domestic coppers
IPC: D06F1/00
Filed: 1923-01-17
Abstract: 204,997. Pearce, F. R. R. J. Jan. 17, 1923. Washing - boilers.- A domestic copper comprises in combination a circulating ring 5 of the kind described in Specification 189,713 heated by a gas ring 5a and connected to the copper 1 by pipes 6, 7, a drawoff tap 8 on the water circulation, a casing 3 supporting the copper lined with asbestos, reinforced cement or like insulating material 2, a hinged lid 10 connected to a funnelshaped exhaust 17 for the steam, an extension 18 of the exhaust having a conduit 21 leading back to the casing and carrying a vapourcondensing appliance 22, a framework fitted with clothes racks 27, and means, such as hooks, for carrying a scrubbing-board. The lid 10 is preferably lined with asbestos and connected to the exhaust 17 by a cord 16, the whole being counterbalanced by a weight 20 connected to a cord 19 passing over pulleys. The vapour-condensing appliance consists of a cone 22, which is supported in a tray 23 containing charcoal or like absorbent material and ends in a tubular passage 24 leading back to the tray 23. The rods 27 are carried by extensions of the legs 4a supporting the casing 3, such extensions also serving as guides for a transverse bar attached to the exhaust 17 and guiding its movements.
Patent GB-1136582-A (GB)
Title: Rotary piston i.c. engine pistons
Inventor: REITZ JOHANNES
IPC: F02B53/00
Filed: 1966-01-12
Abstract: 1,136,582. Rotary-piston internal combustion engines. KARL SCHMIDT G.m.b.H. Jan. 12, 1966 [Feb. 10, 1965; Oct. 30, 1965], No. 1526/66. Heading F1F. In a rotary-piston I. C. engine of the kind comprising a three-sided piston planetarily rotatable within a casing having a bi-arcuate epitrochoidal inner profile, the end-faces of the piston are ground in accordance with the isotherms on these faces deduced from the temperatures prevailing under engine operating conditions. The best circular arc is drawn through each isotherm 3, Fig. 2, and its centre of curvature R<SP>1</SP> 1 , R<SP>1</SP> 2 , ... determined. These centres are then meaned to give a centre R for machining the end-faces to produce between each adjacent pair of corners and the piston centre a convex curved surface so that under engine operating conditions the whole end-faces of the piston are closely adjacent the end surfaces of the casing to form an effective seal. At the lines of intersection between the convex surfaces an oil wedge is developed to produce an oil film under pressure to ensure that the engine runs on a good oil film over the whole of its operating range. Internal cooling of the pistons is found to be unnecessary whence the pistons may be made solid of aluminium or aluminium all9y with insulating strips protecting the bearings and the axially-extending corner seals. The axiallyextending slots in the piston have slightly tapered sides to prevent jamming of the strips owing to the higher operating temperatures of the piston due to the lack of internal cooling.
Patent GB-929416-A (GB)
Title: Crack resistant stainless steel alloys
IPC: C22C38/58
Filed: 1961-01-13
Abstract: A steel which is not susceptible to hot cracking, tearing or micro-fissuring comprises:  Fe  Cr 14-28%  Ni 6.5-26% (replaceable by up to 5% Co)  Mn 7.5-15% Total Mn + Mo 9-16%  Mo 0.5-3.75% Total Mn + Mo 9-16%  C-0.08% preferably-0.05%  N-0.15% preferably-0.1%  Si-2.0% 0.25-1.5% total of Ti and/or Nb + Ta may be added, impurity amounts of R and W and V such that  (% Mo) + (%W / 2 + 2(%V) is 0.5-3.75% The F(C) value which is defined as (% Ni) + 0.02(% Mn) + 27(% C + % N) - 2(% V) - 1.6 (% Ti) - 0.8(% Mo) - 0.7(% Cr - 16) - 0.5 (% W) - 0.4(% Si) - 0.1(% Nb) is from 7.5-22.
Patent GB-864403-A (GB)
Title: A process for acylating polyoxymethylenes
IPC: C08G2/00
Filed: 1960-01-15
Abstract: High molecular weight polyoxymethylenes are acylated by reacting them at elevated temperature with at least one carboxylic acid anhydride in the presence of a carbodiimide. Specified carbodiimides are diethyl, dicyclohexyl, methyl-n-propyl, methyl t-butyl, tertiary butyl isopropyl, dibenzyl, diphenyl and dinaphthyl carbodiimides, tetramethylene w, w1-bis-tert-butyl and hexamethylene w, w1-bis-tert-butyl carbodiimides.  Specified anhydrides are those of acetic, propionic, stearic, benzoic, cyclohexyl carboxylic, phenylacetic acids and their mixtures and mixed anhydrides. Specified solvents which may be used are thiodiglycol diacetate and propionate, diacylated polythioethers, and polyglycolethers, dimethyl formamide and acetamide, tetramethyl urea, alphadimethyl or diethyl malonic acid disters with methanol or ethanol and esters of phenylethyl alcohol with monocarboxylic acids, e.g. acetic or propionic acids.  An organic tertiary nitrogen base or salt of an alkali metal and/or alkaline earth metal with an organic acid, e.g. sodium or potassium acetate, propionate, stearates, secondary sodium phosphate, trimethylamine, triethyl amine, dimethyl benzyl amine, peralkylated polyalkylene polyamines, alkylene diamines, pyridine and N-methyl morpholine.  Specification 857,321 is referred to.
Patent GB-195796-A (GB)
Title: An improved general character signal transmitting device for wireless, flash-light and land line systems of telegraphy
IPC: G02B26/02
Filed: 1922-01-19
Abstract: 195,796. Quinn, E. J. Jan. 19, 1922. Morse and like code multi-signal transmitting arrangements. - Code-transmitting apparatus for line, wireless, or flash-light telegraphy, comprises one or more semi-circular members 1 with alternate conducting and insulating strips 2, 3, arranged in accordance with the signal, and a roller 4 carried on a resilient arm 5 which is rotated by a spring-returned key 10 connected to a rack 8 engaging a pinion 7. A free-wheel clutch is arranged between the pinion 7 and the spindle carrying the arm 5, so that the arm may complete its rotation whilst the key is being returned by its spring 11. After a complete rotation of the arm, the roller rests against a stop 20. A number of such apparatus may be built up to form a keyboard transmitter.
Patent GB-392130-A (GB)
Title: A new or improved hand tool for reseating valves
IPC: B23C3/05
Filed: 1933-01-18
Abstract: 392,130. Valve-reseating tools. A. C. F. BARS, Ltd., ROSENMANN, G., GRUENBERG, S., and NEUBURGER, F. C., 26, Holborn Viaduct, London. Jan. 18, 1933, No. 1668. [Class 83 (iii).] Portable turning-apparatus.- A tool for refacing valve seatings comprises a spindle a carrying a cutter c and sliding in a sleeve e which is threaded to receive an adaptor g of double conical form, the cones being of different sizes and being united by a common base ring m. The adaptor is seated in a valve opening and the lower end of the sleeve brought to bear on the back of the cutter, the depth of cut being increased by rotating the head f of the sleeve.
Patent GB-866231-A (GB)
Title: Improvements in or relating to floor tiles
IPC: E04F15/06
Filed: 1959-01-16
Abstract: 866,231. Floor tiles. RUBERY OWEN & KEMSLEY PROPRIETARY Ltd. Jan. 16, 1959 [Jan. 16, 1958], No. 1670/59. Class 87(1) [Also in Group XXII] A metal floor tile for bedding into concrete has a plurality of downwardly sloping tangs 4 formed from the face portion 1 by shearing and downwardly displaying part of the metal thereof, each of said tangs being tapered to be wider near its lower end than near its upper end and each of the tangs being swaged to have a central longitudinal deformation 7 to stiffen them. Marginal flanges 2 depend from at least some edges of the face portion and may be provided with inwardly disposed tangs 8 which may be hook shaped.
Patent GB-806483-A (GB)
Title: Preparation of flexible cellular materials
IPC: C08J9/02
Filed: 1956-01-18
Abstract: A process of preparing flexible elastomeric cellular products comprises mixing a liquid reaction mixture containing water, an activehydrogen-containing polymeric material and an organic polyisocyanate present in an amount ranging from 2 to 8 equivalents of isocyanate per mol. of the polymeric material, the mixing being conducted under a pressure ranging from 0.5 to 60 pounds per square inch above atmospheric pressure, the pressure being applied after the components have been introduced into a mixing zone and, after the pressure mixing of the reactants has been completed, permitting the reaction mixture to foam and cure at atmospheric pressure to form the flexible elastomeric cellular product.  By the expression "active-hydrogen-containing polymeric materials" are meant polyesters, polyesteramides, polyalkylene ether glycols, and mixtures of two or more of these. Preferred polymeric materials are polyesters and polyesteramides of molecular weight 1000 to 5000, acid number not greater than 5 and hydroxyl number of 20 to 110, especially polyesters of acid number not greater than 2, hydroxyl number 60 and average molecular weight 2000.  In examples a diethylene glycol/adipic acid polyester of molecular weight 1530, acid number 1.96 and hydroxyl number 71.2 is blended with a polyoxyethylated vegetable oil, N-methyl-morpholine, water and hexanetriol-1,2,6. Mixed 2,4- and 2,6-tolylene diisocyanate (6 equivalents) are mixed in and the mixture is poured into a mould and heated at 160 DEG  F.  The mixing is effected variously at (1) atmospheric pressure (for comparison); (2) 0.5 to 4 pounds per square inch; (3) 4 to 8 pounds per square inch; (4) 8 to 15 pounds per square inch.  Other products are prepared with mixing being effected at up to 60 lbs. per sq. inch, the cell size increasing with increased pressure.
Patent GB-1356587-A (GB)
Title: Producting resin sheet
IPC: B29C44/50
Filed: 1971-01-13
Abstract: 1356587 Foamed extruded sheet MONSANTO Ltd 3 Jan 1972 [13 Jan 1971] 1720/71 Addition to 1334062 Heading B5A [Also in Division C3] In a modification of the extrusion process of the parent Specification 1,334,062, surface undulations arising in the surface of the foaming resin adjacent the concave surface of the expansion zone downstream of the extrusion die, are partially smoothed at their crests during continuing expansion of the resin by contact with the concave surface, to produce a foamed sheet with a pattern simulating a woodgrain effect on one surface. The resin sheet may leave the expansion zone spaced from the concave surface, and the patterning may be regulated in degree, by variation in the speed of the convex surface. The examples relate to: (1) acrylonitrile/butadiene/styrene resin sheet extruded with talc nucleating agent and foamed by dichlorotetrafluoroethane, and carbon dioxide, injected into the extruder; (2) and (3), the same resin and nucleating agent foamed by dichlorodifluoromethane and isobutylene.
Patent GB-747523-A (GB)
Title: Improvements in or relating to furnace heating installations
Inventor: BOWEN IDRIS GWYNNE
IPC: F23D11/00
Filed: 1954-01-20
Abstract: 747,523. Liquid fuel burners. SHELL REFINING & MARKETING CO., Ltd. Oct. 7, 1954 [Jan. 20,1954],No. 1745/54. Class 75(1). A furnace installation comprises a wide range burner 1 wherein oil fuel pressure is maintained at its full value up to .the burner nozzle, a wide range air control 4 wherein full air pressure is maintained until it flows into the. combustion zone 2, a mechanical linkage whereby both the fuel and air controls may be operated by the movement of a single element to give correct fuel/air ratios over a wide range of fuel feeds, and sources of supply for both fuel and air which maintain constant pressures throughout the range of operation. By wide range is meant a flow range in which the maximum flow is at least three times the minimum flow. The air control controls the flow of air into the combustion zone where sub-atmospheric pressure is main. tained by a fan 3 in the furnace flue and comprises fixed sectors 32 carrying swirler vanes 31 and co-operating with sectors 30 rotatable about the axis of the burner ; the fixed sectors and an outer shroud 25 are fixed in relation to a shell 5 secured to the wall 28 of the furnace and the rotatable sectors are carried by an inner shroud 24 fitting closely within the outer shroud 25. The inner shroud 24 also carries the burner 1 and an operating handle 43. Ports 26, 27 are formed in the shrouds to admit air into the passage surrounding the burner. The burner is either of the type having a vortex chamber provided with an axial discharge orifice and with valve means for admtitting fuel through different axially displaced parts of tangential fuel inlet means in the wall of the chamber in accordance with the rate of fuel flow, or of the type in which fuel is returned from the nozzle through a spill duct. The fuel flow is controlled by a lance 23 having on its end a roller 22 engaging with an inclined face on a push rod 7 disposed in a guide 20 secured to the burner. The upper end of the push rod has a roller 40 urged by a spring 21 into engagement with a cam 6 secured to the shell 5 and consequently when the air valve is operated by the handle 43, the guide 20 rotates to move the roller 40 over the cam 6 whereby the rod 7 moves radially'within the guide and moves the lance longitudinally. The fuel supply system to the burner includes a fuel tank 14 a filter 13, a pump .12, a heater 11, a further filter 10 a pressure gauge 8 and a re-circulation line 16. A pressure regulating valve 15 connects the inlet and outlet of the pump. Specification 672,530 is referred to.
Patent GB-269264-A (GB)
Title: A dental appliance
IPC: A61C11/06
Filed: 1926-01-22
Abstract: 269,264. Sellors, J. E. Jan. 22, 1926. No Patent granted (Sealing fee not paid). Teeth, artificial.-A detachable fitting for a dental articulator is provided with indicating means adjustable in accordance with the lip lines, median line. canine positions, and the position of the incisal edge of the teeth as marked in the usual way on the wax bite, so that these positions may be reproduced after removal of the wax bite. The appliance comprises a plug A keyed to the plaster and attached to a barrel B in which a transverse rod C mav rotate but cannot move longitudinally. Vertical bars E, E<1> may be clamped in position along the rod C so that their inside edges indicate the canine positions, and these bars carry transverse wires G, G1, G11 which may be set to the positions of the lip lines and median line. A small disc H on the wire G, indicates the position of the centre of the mouth, the wire being transversely adjustable for this purpose. Rotary adjustment of the bar C in the barrel B allows the instrument to be set angularly so that the wire G, rests on the wax X added to the bite and thus indicates the position of the incisal edge of the front teeth.