baber/WOPTO huggingface dataset:
Patent GB-122465-A (GB)
Title: Improvement in or relating to the Manufacture of Vegetable Charcoal.
Inventor: PENROSE GEORGE
IPC: C01B31/12
Filed: 1918-01-22
Abstract: 122,465. Penrose, G., and Penrose, J. D. Jan. 22, 1918. Charcoal.-Vegetable charcoal for filtering, deodorizing, or decolorizing purposes is prepared by mixing pine and like needles with from 1 to 5 per cent of lime or soda-lime, carbonizing at a brightred heat, treating with dilute hydrochloric acid, and finally washing with water or with a dilute alkaline solution. The lime may be replaced by somewhat more than an equivalent amount of calcium carbonate.
Patent GB-509157-A (GB)
Title: Improvements in checking devices for doors and the like
IPC: E05F3/20
Filed: 1938-01-14
Abstract: 509,157. Fluid checks for doors &c. GALLOWAY, L. W., and ADAMS (VICTOR), Ltd., R. Jan. 14, 1938, No. 1307. [Class 65 (i)] In a door check of the kind in which a piston &c. 6 is displaceable axially along a fixed cylinder 1 by rotation of a spindle 4 fixed to the door, and has a valve to allow easy passage of fluid from one side of the piston to the other when the piston moves one way, and restricts such flow when the piston moves the opposite way, the valve, which may be an annulus 17, rests on a friction sleeve 16 embracing the lower end 4a of the spindle 4, and adapted to remain stationary during the initial movement of the piston so as to close or open the ports 18 quickly, through which the fluid passes. When the ports are closed, fluid passes from the space under the piston through ports 11 up the spindle 4a and through ports 12 restricted by an adjustable rod 13 in the spindle 4. The piston is moved by a quick-pitch, double helical thread 5 engaging a threaded portion of the piston. The sleeve 16 may comprise a split inner sleeve of friction material surrounded by a split sleeve of metal.
Patent GB-262286-A (GB)
Title: Improvements in apparatus for self propelled vehicles for preventing splashing by the wheels and sweeping the track of same
IPC: B60S1/62
Filed: 1926-01-18
Abstract: 262,286. Quack, H. K., and Lowthian, R. J. Jan. 18, 1926. Sweeping-machines.-Apparatus positioned in front of the wheels of motor vehicles for preventing the splashing of mud and for sweeping the wheel track, comprises a bundle of bristles 2 held adjustably in a hollow carrier 1 attached to the axle or frame of the vehicle, the bristles being gripped in spread-out fan form preferably by a hinged clamp 13 which under the action of a screw 15 presses the bristles against an extension 11 on the carrier. The carrier is detachably mounted at one end of a rod 3 the other end of which is clamped to the steering arm 4 and the brush is inclined so as to sweep the mud inwards. Specifications 4400/13, 151,817, and 217,114, [all in Class 19, Brushing &c.], are referred to.
Patent GB-509431-A (GB)
Title: Improvements in and relating to bib-cocks and the like
IPC: F16K31/50
Filed: 1938-01-17
Abstract: 509,431. Bib-cocks. BURROWS, S. F. Jan. 17, 1938, No. 1461. [Class 135] A screw-actuated bib-cock of the kind in which the valve member closes in the direction of flow and is provided with a screwed spindle 13 engaging a 'threaded socket in an actuating spindle 7 rotatably mounted in the casing has the valve member provided with a depending spindle 10 slidably engaging a socket 14a in a removable closure plug 14 to prevent rotation of the valve member. The spindle 7 is formed with a collar 7a adapted to be held against,the bottom of a recess 15 in the casing by a packing 16 compressed by a gland nut 17. The valve seat is coned or radiused and the valve member 9 is provided with a thick washer 8 held in place by a central nut 12 and a flanged ring 11 screwed on to the valve member 9.
Patent GB-1279073-A (GB)
Title: Letter opener
IPC: B43M7/00
Filed: 1971-01-12
Abstract: 1279073 Cutting apparatus KWOK-KWAN LO [trading as TUNG HING PLASTIC FACTORY] 12 Jan 1971 1504/71 Heading B4B An apparatus for opening envelopes comprises motor-driven rotatable cutting-wheels 6, 6<SP>1</SP> and a pivotable lever 11 arranged so that as an envelope is fed towards the nip of the cutting wheels, the envelope pivots the lever to actuate the motor. The cutting wheels are driven, via gears (not shown), by means of an electric motor 4, the gears also driving a toothed feed-wheel 7 against which a second wheel 7<SP>1</SP> is held by a spring 8. The lever 11 is pivoted at 13 on the apparatus frame 12 and is normally urged by a spring 14 against a stop 17. In operation, when an envelope is fed through the apparatus, the lever is deflected so that a projection 15 thereon contacts a fixed contact 16 thereby completing a circuit between batteries 5 and the electric motor.
Patent GB-1063313-A (GB)
Title: Heel and heel dowel and toplift
IPC: A43B21/36
Filed: 1965-01-13
Abstract: 1,063,313. Boots &c. ESSEX PRODUCTS Inc. Jan. 13, 1965 [Aug. 14, 1964], No. 1557/65. Heading A3B. A heel reinforcing dowel 10, e.g. of steel, is formed at one end with two flanges 20, 22, at least one of which is curved towards the other to form a locking pocket into which the material 30 of a top lift is embedded. The upper flange, lower flange or both flanges may be curved towards the other and the flanges may be integral with the dowel, or formed by splaying the end of the dowel into a trefoil configuration or formed by washers riveted on to the dowel.
Patent GB-679804-A (GB)
Title: Improvements in and relating to chromium-alumina metal ceramics
IPC: C22C32/00
Filed: 1951-01-22
Abstract: A metal ceramic product having high strength at elevated temperatures and high resistance to oxidation and thermal shock consists of a strongly cohesive mass consisting of 25-50 per cent by volume of finely divided alumina having a particle size 0.1-45 microns intimately dispersed in a continuous phase of 75-50 per cent by volume of sintered chromium particles not exceeding 45 microns in size.  Materials of high purity should preferably be used and in particular the chromium should contain less than 0.3 per cent of carbon.  The product is made by forming a shaped mixture of the materials and firing at 1450 DEG  1800 DEG C for a sufficient time and in an atmosphere of dry hydrogen or argon for example.  The shaped mixture may be formed from dry constituents or by a slip-casting procedure (see Group XXII).
Patent GB-1236586-A (GB)
Title: Improved load handling means primarily for vehicle containers
Inventor: TAYLOR LAWRENCE WILLIAM
IPC: B65D90/14
Filed: 1968-01-11
Abstract: 1,236,586. Lifting containers. W. E. & F. DOBSON Ltd. 5 Dec., 1968 [11 Jan., 1968], No. 1590/68. Headings B8H and B8Q. A lifting frame for containers has corner twist locks 4 operated by rams 5 and telescopic legs 6 which may be provided with wheels. The legs are retractable to the inoperative position shown in full lines, Fig. 1 (not shown), by rams 9. The latter push rods 8 outwards and these rods together with the legs 6 are rotated by a helical groove 10 which co-operates with a fixed pin. Lugs are provided for the attachment of lifting slings.
Patent GB-816254-A (GB)
Title: Preparation of foamed bitumen
Inventor: PORDES OTTO
IPC: C08J9/00
Filed: 1957-01-16
Abstract: In a method of making foamed bitumen, an asphaltic bitumen, in which are dispersed a blowing agent and a surface-active agent soluble in the bitumen, is heated to a temperature above the decomposition temperature of the blowing agent but below the temperature at which the viscosity of the bitumen falls to such a low value that a substantial escape of emitted gas occurs, the mixture is maintained at this temperature until the desired foam volume has been obtained, and is then cooled.  Specific examples are given of surface active agents which can be used belonging to the following classes of compounds: quarternary ammonium compounds; alkyl amines and their salts; cyclic amines; partial amides of polyamines, and salts thereof; complex polyamino compounds derived from ammonolysis of chlorinated paraffin wax, the higher fatty acid salts of polyamines derived from reaction between acrolein and ammonia, adducts of hydrogen sulphide and diallyl amine; complex polyamines containing amino and hydroxyl groups, e.g. condensation products of epihalohydrins with ammonia or amino compounds; partial amides of these latter complex polyamines obtained by treatment with a variety of fatty, naphthenic, resin, and cyclic acids and certain mixtures thereof; salts of carboxylic and organic sulphonic acids and of acids derived from animal, plant, and fish oils; high molecular weight acids such as carboxylic, sulphinic, sulphonic, and organic sulphuric acids, e.g. sulphated fatty oils and sulphonated mineral oils; hydroxy fatty acids; hydroxyl-containing organic compounds, e.g. glycols, partially hydrolysed glycerides, monohydric alcohols, condensation products of ethylene or propylene glycol with alcohols or carboxylic acids; organic compounds or phosphorus.  The surface-active agent may be added to the bitumen to be foamed after the latter has been warmed to facilitate mixing, or it may first be mixed with a small amount of softer grade bitumen which mixture is then added to the main bulk of bitumen.  The blowing agent, which is stable at room temperature but decomposes below 450 DEG C., may be inorganic or organic, e.g. sodium bicarbonate, ammonium carbonate, hydrated ammonium alum, urea, diazoaminobenzene, dinitrosopentamethylene.  The asphaltic bitumen is a solid or semi-solid product derived from asphaltic, semi-asphaltic, or non-asphaltic crude petroleum oils, and may be naturally-occurring or prepared by treating residual petroleum oils by steam or vacuum distillation; it may also be a straight-run, steam refined or a so-called blown asphaltic bitumen.  The mixture of bitumen, blowing agent, and surface-active agent is heated in a mould preferably between 100 DEG  and 180 DEG C.  In two examples a dispersion of sodium bicarbonate in soft grade bitumen at 100 DEG C. is added to blown bitmen at 175 DEG C. containing aluminium stearate as surface-active agent, and the mix is heated to 135 DEG C. for 2 hours.
Patent GB-1472004-A (GB)
Title: Packaging bag for bread
IPC: B65D33/01
Filed: 1975-01-15
Abstract: 1472004 Bags BREVETEAM SA 15 Jan 1975 [17 Jan 1974] 1691/75 Heading B8K A packaging bag for bread is made of film material, the walls of the bag having at least 500 slits per dm.<SP>2</SP>, each slit 4 having a length of 2-6 mm., and at least one of the lips 4, 6 of each slit being displaced perpendicularly to the plane of the film. The walls may be of polyethylene, polyethylene/vinyl acetate copolymer, or cellulose acetate. The films may be transparent and joined about three edges 1 by heat-sealing, adhesive, stitching, or stapling. In a particular example the walls have 4 mm. slits distributed at 750 slits/dm.<SP>2</SP>. The slits may be arranged as shown or slits in adjacent rows may be offset.
Patent GB-1157638-A (GB)
Title: Aminonitrile Derivatives and Process for their Preparation
IPC: C07C237/00
Filed: 1966-07-01
Abstract: 1,157,638. Aminonitrile derivatives and their preparation. STERLING DRUG Inc. 1 July, 1966 [1 July, 1965], No. 1746/69. Divided out of 1,157,637. Heading C2C. Compounds of the formulae may be obtained by reductively alkylating 2- methylglutaronitrile in the presence of an amine, HNR 1 R 2 , where NR 1 R 2  is a tertiary amino group and R 1  and R 2  are the same or different and represent lower or higher alkyl, hydroxy lower or higher alkyl, lower alkoxy higher or lower alkyl, di-lower alkylamino lower or higher alkyl, C3<SP>_</SP>7 cycloalkyl, phenyl or substituted phenyl, said substitutents being hydroxy, lower alkoxy, di-lower alkyl amino, trifluoro methyl, lower alkyl mercapto or halo, or R 1  and R 2  taken together form a heterocyclic ring containing at least one heteroatom, the terms " lower and " higher " denoting C 1-8  and C 8-18  respectively. The 2-methyl glutaronitrile may be prepared in a first stage by reducing 2- methylene glutaronitrile at 60-80‹ C. under a pressure of 100-200 p.s.i. hydrogen in the presence of a catalyst such as palladium, platinum, Raney cobalt or Raney nickel which may be supported on a carrier such as carbon, barium sulphate, strontium carbonate, calcium carbonate or alumina. The reductive alkylation step is preferably effected at 90-110‹ C. under a hydrogen pressure of 100-500 p.s.i. employing the same catalyst as in the above first stage. Example 3 also illustrates the preparation of a compound of the Formula I by alkylation of the corresponding free amine.
Patent GB-651074-A (GB)
Title: Improvements in edge protectors for skis
IPC: A63C5/048
Filed: 1948-01-21
Abstract: 651,074. Edge protectors for skis. STEFFEN, O. Jan. 21, 1948, No. 1871. Convention date, Jan. 21, 1947. [Class 132 (i)] A protective edging for skis, comprises a strip, which may be divided in sections, of relatively hard material (e.g. steel, fibre or celluloid), adapted to be secured in a recess along a marginal edge of the running surface of a ski, so that the flat under-side of the strip lies flush with said running surface of the ski and a side surface forming part of the side of the ski, the strip being so formed that its said side surface meets its said under surface at an acute angle. As shown the protective edge has thickening ribs a and b at either side embracing a feather f formed in the recess of the ski. Incisions may be made in the thickenings so that the edge protectors can bend with the ski and they may have an insertion or mounting to prevent icing. The Specification as open to inspection under Sect. 91 describes also edge protectors wherein the side surface and under surface are not at an acute angle to one another. The protector may have only one longitudinal rib and its under side may be shaped as shown in Fig. 3 (Cancelled). A de-icing insertion g, shaped as shown, may be used. Two methods of securing successive sections of the protector are described. This subject-matter does not appear in the Specification as accepted.
Patent GB-948618-A (GB)
Title: Resinous compositions
IPC: B05D1/04
Filed: 1960-01-19
Abstract: 948,618. Resinous compositions. RANSBURG ELECTRO-COATING CORPORATION. Jan. 19, 1960, No. 1892/60. Headings C3B, C3P and C3R. [Also in Divisions B2 and C4] A paint composition for electrostatic spraying comprises a film-forming material and from 0À1% to 10 % by weight based on the weight of the paint of charged colloidal particles of one sign having a diameter of at least 1000Š and mobile counterions associated therewith, the film-forming material charged colloidal particles and associated counter-ions being dispersed in an organic liquid paint continuum, the latter including from 3 % to 25 % by weight based on the weight of the paint of a liquid polar component having a dielectric constant in excess of 8. A pigment may be included. The resin may be an alkyd resin, a phenolic resin reacted with tung oil; an acrylic polymer, a vinyl chloride polymer or copolymer, a melamine-formaldehyde resin, a copolymer of tall oil, phthalic anhydride, glycerol and an epoxy resin, or a mixture of epoxy resin and ureaformaldehyde resin. Pigments mentioned include red lead, titanium dioxide, calcium carbonate, aluminium silicates, lamp black, zinc oxide, magnesium silicate, and iron oxide. The colloidal particles may be of an acidic clay, e.g. montmorillonite, triethanolamine titanate, a urea-fatty acid clathrate complex, or a phenol- or amine-aldehyde resin. The counter-ions may be provided by a quaternary ammonium hydroxide, an amine, an oxime or an amide; other onium compounds such as phosphonium, arsonium, stibonium, oxonium, sulphonium, selenonium, stannonium or iodonium compounds may also be used; alternatively, the ions may come from an amphoteric metal soap having no drier activity, in which case driers such as lead naphathente may not be present. The polar constituent may be a nitro paraffin, ester or ketone, acrylonitrile or acetonitrile. Compositions may also include solvents, chlorinated rubber, fillers such as talc, and, except as noted above, metallic driers.
Patent GB-228334-A (GB)
Title: Improvements in crystal detectors
IPC: H01L29/00
Filed: 1924-01-24
Abstract: 228,334. British Thomson-Houston Co., Ltd., and Stace, A. T. Jan. 24, 1924. Crystal detectors are constructed so that rotation of the crystal cup or of a member geared thereto rocks a pivoted lever carrying the contact wire to make and break contact with the crystal. As shown in Fig. 2, the crystal is held between toothed cups e, d<1> the latter of which is secured to a ratchet wheel d. The contact wire is carried by a stiff wire wound in a helix on a pin h and having its other end resting on the periphery of the ratchet wheel. In a modification, Fig. 3, the crystal cup e is rotated frictionally when the ratchet wheel d is turned. Reduction gearing may be provided between the ratchet wheel and the crystal cup and a lateral movement may be given to the contact member by means of a cam.
Patent GB-538486-A (GB)
Title: Improvements in or relating to variable-gain thermionic amplifiers
IPC: H03G3/08
Filed: 1940-02-02
Abstract: 538,486. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., ROCHE, A. H., and BLASHILL, T. Feb. 2, 1940, No. 2069. [Class 40 (v)] In an amplifier in which gain is controlled by varying the negative feedback by varying a resistance in the cathode lead means are provided to compensate for change in grid bias produced. The Fig. shows an arrangement in which the gain of the valve V, is effected by adjustment of the slider of cathode potentiometer P, connected between the cathode and earth and the bias correction is obtained by connecting the heating battery through a limiting resistance R 24  to the potentiometer. A similar gain control is applied to valve V 2  except that resistances R 12 , R 13  are inserted in a single step by switch KD, auxiliary contacts KD of which shortcircuit inductances L 1 , L 2  to correct for the change in input capacity. Inductance L 3  is provided in the anode circuit of valve V 2  to compensate phase change. The decoupling C 7 , R 11  and C 9 , R 16  further prevents phase shift at low frequencies, but by suitable choice of the latter elements correction of a small residual phase angle may be effected. The high tension supply should be of low impedance and may include stabilising means as described in Specification 526,665, [Group XXXV].
Patent GB-823624-A (GB)
Title: Weighing scale
IPC: G01G23/32
Filed: 1958-01-21
Abstract: 823,624. Weighing apparatus. TOLEDO SCALE CORPORATION. Jan. 21, 1958 [March 4, 1957], No. 2078/58. Class 143 A weighing scale has an optical system which projects on to a screen 157 (Fig. 1), an image of weight and computed price indicia marked on a transparent chart 34 which is moved in an arcuate path during weighing movement of the load counterbalancing mechanism of the scale, the optical system being provided with means for retaining the image in sharp focus in all positions of the chart. The load receiving platter 1 is clipped by catches 32 on to legs 29 which bear through a spider 2 on a lever 4 which is fulcrumed at 5 and is connected to the lower end of a load counterbalancing spring 7. The chart 34 is connected to a lever 4 through flexure plates 36 and, through flexure plates 38. to a further lever 37, which is fulcrumed on a flexure plate 39; the arrangement being such that although the inclination of the chart remains constant, it undergoes a small horizontal movement as it is moved vertically. A frame 77, mounted on the base 6 by means of flexure plates 78 (Fig. II), carries a first optical system comprising a projection lens 103 and mirrors 154, 106, 104 (Figs. I and IX) which project the weight indicia column on chart 34, and a second optical system comprising a projection lens 112 and mirrors 159, 114, 115 which is movable across chart 34 on a sliding carriage 107 to correspond with the desired computed price column by a spring tensioned endless wire (not shown), which is driven by rotation of a drum 118 (Fig. I) secured to a shaft 119 which is rotated by a knob (not shown) secured to the scale adjacent the tare adjustment knob 64. The optical frame 77 is connected through a flexure plate 169 to a link 171 which is pivoted to lever 37 by means of a ball race 172 so that as the lever 37 pivots it imparts a horizontal movement to frame 77 which is substantially the same as the horizontal movement of the chart 34. Thus the spacing between the chart and the components of the two optical systems remains constant thereby maintaining a sharp image. In a modification (not shown) link 171 is pivoted on lever 4. In another modification, Fig. XVI, the frame remains stationary and the correction is obtained by locating a positive lens 202 and a negative lens 203 on opposite sides of the chart 34a. The Specification describes in detail how the various components of the optical systems are adjusted to accurately set the scale. The projection lamp 131 is provided with two filaments and is movable by a snap acting toggle device to two positions of adjustment in which one or other of the filaments is correctly aligned with the optical systems. The fulcrum bearings 5 of the lever 4 and the bearings 3 through which the spider 2 is supported on the lever 4 are ball races and screws 208, 209 are provided to lock the bearings during transit. Movement of lever 4 is damped by a dash pot 26.
Patent GB-154099-A (GB)
Title: Improvements in and relating to tyre pumps
IPC: F04B33/00
Filed: 1920-01-23
Abstract: 154,099. Davies, I. L. Jan. 23, 1920. Actuating pumps by hand power.-A pump for inflating pneumatic tyres comprises one or more pairs of horizontally opposed double-acting cylinders b, b<1>, Figs. 1 and 2, the pistons c of which are connected to a common hand-operated lever f. The cylinders have suction valves g and discharge valves g , and the discharge valves communicate through a pipe h with a distributing-chamber i having an outlet i<2> to the tyres. The pump is secured to the underside of the footboard a provided with a flap k which, when moved, discloses the piston-actuating lever.
Patent GB-1351537-A (GB)
Title: Apparatus for the controlled venting of gaseous effluents
IPC: A62C4/02
Filed: 1972-01-17
Abstract: 1351537 Valves AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE ETAB PUBLIC 17 Jan 1972 [19 Jan 1971 4 Jan 1972] 2197/72 Heading F2V An apparatus for discharging gaseous effluents through a liquid comprises an inlet tube 2 and three chambers 8, 9, 10 through which the gas passes progressively as its flow rate increases. The liquid is initially at a common level, which is depressed in tube 2 when the pressure of the gas increases to a stage where gas bubbles through the liquid via the serrations 4. A higher gas pressure forces liquid out of chamber 8 so that gas freely escapes through this chamber but bubbles through chamber 9. A still greater pressure causes bubbling of gas through chamber 10 and discharge of liquid from chamber 9. Each of the chambers 8, 9, 10 may be formed as a U-shaped chamber (28, 29, 30, Fig. 3, not shown).
Patent GB-1048821-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B60N2/005
Filed: 1962-01-22
Abstract: 1,048,821. Motor vehicles; vehicle bodies. P. BROWN and A. T. L. MACKENZIE. April 22, 1963 [Jan. 22, 1962], No. 2216/62. Headings B7B and B7H. A motor vehicle comprises a frame 1, at least two castor wheels 4 and a unit 9 having a pair of steerage wheels 3 driven by an engine 5 the unit 9 being rotatable about a vertical axis relative to the frame 1. Springs or shock absorbers may be associated with the wheels 3, 4. The vehicle is normally steered by differential rotation of the steerage wheels 3 under the control of steering wheel 10. The degree of rotation of unit 9 is normally limited by latches which are releasable to permit further rotation of the unit for parking. A driver's seat 11 is arranged in front of the casing for engine 5 and passenger seats are arranged on each side of the vehicle. Arch like members 15 mounted on frame 1 support the bodywork which includes a door 19, windows 12, 16, 17 and a roof 18 which may be detachable or hinged.