baber/WOPTO huggingface dataset:
Patent GB-813309-A (GB)
Title: Improvements in or relating to apparatus for cutting grooves, especially in worn vehicle tyres
IPC: B29D30/68
Filed: 1957-11-20
Abstract: 813,309. Grooving apparatus. RUFF, H. Nov. 20, 1957 [April 26, 1957], No. 36085/57. Class 31 (2). Apparatus with an adjustably and replaceably mounted electrically-heated U- or V-shaped cutter for cutting grooves, especially in worn vehicle tyres is characterized in that the cutter is clampable by means of its arms against contact jaws insulated electrically from one another, the arms of the cutter being mounted edgewise in clamping means which are guided for adjustment and securing in the contact jaws. As shown, the arms 1<SP>1</SP> of a cutter 1 are clamped against the end faces of contact jaws 2, 3 which are insulated from one another by an insert 4, by means of screws 11 passing through metal blocks 9 and counter-pieces 10, the counterpieces being slidable in recesses 8 in the contact jaws. The blocks 9 are provided with one or more grooves 12 to receive the arms 1<SP>1</SP> in different positions. The contact jaws are provided with contact elements 5 constructed as plugs for removable attachment to a handle 6.
Patent GB-1195651-A (GB)
Title: An improved Lens for Spectacles
Inventor: FRAIGE RICHARD
IPC: G02C7/00
Filed: 1968-07-30
Abstract: 1,195,651. Spectacles. R. FRAIGE. July 30, 1968 [March 26, 1968], No. 36205/68. Heading G2J. A pair of spectacles which form several overlapping images of an object to provide a kaleidoscopic and possibly enhanced three dimensional effect has each lens 1, 2, in the form of a plurality of facets 9, 10, in different planes at intersecting angles on at least one face 4. Each lens has an inner face which is flat and recessed away from the eyes and an outer surface of generally dome shape with the facets sloping downwardly towards the periphery away from the thickest point 8.
Patent GB-1032179-A (GB)
Title: Improved agricultural nutrient containing urea
IPC: C05G3/90
Filed: 1963-09-16
Abstract: A fertilizer composition comprises urea, a solid hydrocarbon binder, and a urea derivative which is a urea decomposition inhibitor.  The hydrocarbon may be wax, asphalt, petroleum resin, polyethylene, polypropylene, or a polyvinyl resin.  The urea derivative may be thio, methyl, sym-dimethyl, unsym-dimethyl, n-butyl, t-butyl, or phenyl urea.  The composition may also contain chalk, limestone, calcined lime, gypsum, clay, or phosphate rock.  It may contain 99.9-75% of urea, 0.1-25% of hydrocarbon, and 0.01-10% of alkylated urea.  The hydrocarbon constituent may comprise 5-50% of wax and 95-50% of asphalt. The binder may be incorporated in the molten state or dissolved in a volatile solvent.  The composition may be formed into agglomerates, pellets, or prills. The shaped composition may have a diameter of 1/16 to 1/2 inch.
Patent GB-344480-A (GB)
Title: Improvements in the manufacture of organic substitution derivatives of cellulose
IPC: C08B11/12
Filed: 1929-11-28
Abstract: Nitrogen containing cellulose derivatives are obtained by reacting on a carboxy or hydroxy ester or ether of cellulose by the known methods for substituting amino or substituted amino groups for simple hydroxy groups or for hydroxy radicles in carboxy groups.  The substitution may be effected by treatment with ammonia or with an organic amine, if desired in presence of sulphur dioxide.  Cellulose derivatives containing a carboxy group may be heated in the form of their ammonium or amino salts, or alternatively the free cellulose carboxy acid or a salt or ester thereof may be heated with ammonia or an amine or a salt thereof. Or the substitution may be carried out in two stages, for example by first replacing the hydroxy groups by halogen atoms, and then substituting the halogen atoms by amino groups.  The halogenation of the cellulose derivatives may be carried out according to the process of Specification 344,529.  The substitution by amino groups is preferably effected by treating with ammonia under pressure, or by boiling with an organic amine in presence of a solvent or non-solvent diluent for the cellulose ester or ether treated.  Products containing carboxylic acid amide groups may be further treated so as to convert these groups into simple amino groups, for example, by reacting with hypochlorites or hypobromites.  Derivatives containing primary or secondary amino groups may, if desired, be acylated, alkylated, or further alkylated or aralkylated, and when the initial cellulose derivatives are not completely etherified or esterified, subsequent etherification or acylation may result in an etherification or acylation of the remaining hydroxy groups in the cellulose molecule.  By effecting the reactions in the presence of nonsolvent diluents, derivatives having the fibrous structure of cellulose are obtained.  According to examples, (1) cellulose glycollic acid dissolved or suspended in benzene is treated with thionyl chloride, the excess thionylchloride and the benzene being subsequently removed under reduced pressure. The halogenated product is heated under pressure with aqueous ammonia at 100-110 DEG  C.  (2) Oxyethyl cellulose is treated as above.  (3) Cellulose malonate, phthalate, malate, or maleate is treated with thionyl chloride as in (1) above, and the product boiled with excess of aniline.  (4) The ammonium salt of cellulose glycollic acid or of the oxalic or maleic acid ester of cellulose is suspended in anthracene oil and heated to 180-220 DEG  C.  (5) The product of example (1) is suspended in water and added with cooling to a suspension of slaked lime and bleaching powder.  Sodium carbonate is then slowly added over a period of three hours, after which the temperature is brought up to 70-75 DEG  C.  The products may be formed into filaments or the like having an affinity for acid wool colours.  Specifications 166,767, 277,721, 316,160, 320,842, [all in Class 2 (ii), Cellulose &c.], and 343,521 also are referred to.
Patent GB-1041136-A (GB)
Title: A window assembly comprising at least one pivoting window
IPC: E06B7/23
Filed: 1964-09-07
Abstract: 1,041,136. Reversible windows. A. FELIX. Sept. 7, 1964 [Sept. 9, 1963], No. 36519/64. Heading E1J. In a reversible sash 1 pivotable about a vertical central axis and incorporating a blind 29, the sash has sealing strips 23, 24 on the top and bottom sides of the sash and on the stiles of the sash, which in the closed position of the sash make sealing contact with wavy surfaces 30 on the confronting sides of the window frame 2. The strips 23 are accommodated in T-shaped grooves 19, 20, 21, 22 and the contacting surfaces 30 are removably secured in the frame 2 by flexible legs 31 hooking on to lugs 32 integral with the frame 2.
Patent GB-334802-A (GB)
Title: Improvements in and relating to ignition devices for internal combustion engines
IPC: H01F29/10
Filed: 1929-11-29
Abstract: 334,802. British Thomson-Houston Co., Ltd., Griffiths, L., and Morton, C. J., Nov. 29, 1929. Transformers. - An induction coil for internal-combustion engines is provided with a core 2 comprising two relatively movable parts in order that the self-inductance of the primary winding may be varied. The primary and secondary windings 2, 3'surround an iron wire core piece 1 from the ends of which sets of laminations 6 project radially, these laminations being secured in caps 5 of moulded insulation which close the ends of a tubular casing 7. A laminated member 8 adapted to bridge the sets of laminations 6 is secured between supporting lugs 9 externally of the casing, and the latter is adapted to be rotated within straps 10 so as to vary the gaps between the laminations 6 and 8, the extreme positions of the laminations 6 being indicated by full and broken lines respectively.
Patent GB-1211921-A (GB)
Title: Improvements in or relating to ramp signal generators
Inventor: WOLK THEODORE EVERETT DONALD
IPC: H03K4/56
Filed: 1968-08-01
Abstract: 1,211,921. Transistor ramp generating circuits. HONEYWELL Inc. 1 Aug., 1968 [15 Aug., 1967], No. 36684/68. Heading H3T. A ramp generator comprises an amplifier 21 having negative feedback via a capacitor 64 so as to generate a linear ramp function and a switching device 19 arranged to connect a second feedback path so as to generate a logarithmic ramp function. As shown, when switches 16, 19 are set to their lower positions, the inverting input 25 of amplifier 21 is earthed via resistors 17, 58, whilst the non-inverting input 26 is supplied with voltage V1. Negative feedback via transistor Q2 and capacitor 64 allows the output V0 to execute a linear rise following an initial step of voltage V1. When the output V0 reaches a reference voltage at terminal 76, a comparator 75 resets a bi-stable circuit in control block 60 so that field effect transistor Q4 is turned on, discharging capacitor 64 and returning the output to voltage V1. Transistor Q2 is then switched off and Q1 switched on so that a further linear ramp is generated using a feedback path via Q1 and capacitor 65. The feedback capacitors 64 and 65 are thus used on alternate ramps. If switches 16, 19 are set to their upper positions, the inverting input 25 to amplifier 21 is supplied with voltage V2 and a positive feedback resistor 20 is connected to the non-inverting input 26 so that the ramp output follows a logarithmic law, e.g. to base 10. Starting arrangement.-Transistors Q5, Q6 may be initially conductive so as to clamp the input 25 until a starting switch (not shown) is closed when a monostable circuit (also not shown) will turn off Q5 and Q6 after a predetermined time.
Patent GB-780442-A (GB)
Title: Improvements relating to radio receivers
Inventor: FEWINGS DAVID JOHN
IPC: H03J5/14
Filed: 1954-12-21
Abstract: 780,442. Electric control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 19, 1955 [Dec. 21, 1954], No. 36872/54. Class 40 (1). In a remotely controllable switch tuning arrangement for radio equipment, of the type described in Specification 780,252, the control switches situated at the remote control point are operated by differently-apertured punched cards or the like to obtain the different tuning settings. As shown, 10a and 10b are two of a number of rotary actuators provided at the tuning equipment, each being connected in series with a battery and driving selector switches 11 and 15, 16, respectively, the arrangement being such that the switches are driven until the circuit of the motor is interrupted at the selected position determined by the setting of the control switches. The control switch for the motor 10a comprises spring-loaded plungers K0, K1, K2, connected to corresponding contacts on the switch 11, contact between the plungers and an earthed metal strip 6 being selectively determined by the insertion of a punched card, Fig. 3. The control switch for the motor 10b comprises two rows of spring- loaded plungers, LA to LD and LA<SP>1</SP> to LD<SP>1</SP>, which are connected as shown to the switches 15 and 16. The plungers LA<SP>1</SP> to LD<SP>1</SP> selectively co-operate with a common earthed metal strip and the plungers LA to LD selectively co-operate with a common unconnected strip as determined by the apertures in the punched card, and by this means ten different positions of the motor 10b may be obtained. The ten different combinations are given in a table in the Specification. As described, the plungers KO to K2 are intended to select tuning in steps of 10 Mc/s., LA to LD and LA<SP>1</SP> to LD<SP>1</SP> in steps of 1 Mc/s., and the remaining groups in steps of 100 kc/s., 10 kc/s. and 1 kc. A final plunger P would switch in a small tuning element to give ¢ kc. steps. The parts 1 and 5 of the control panel may be movable with respect to one another, e.g. hinged, so that when the apparatus is not in use the plungers 7 and contacts 6 are separated. Instead of separate punched cards a continuous tape may be used, and means provided for pulling the tape into operative position as required.
Patent GB-356597-A (GB)
Title: Continuous cycle absorption refrigerating machine
IPC: F16C9/06
Filed: 1930-12-06
Abstract: 356,597. Refrigerating. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Dec. 6, 1930, No. 36873. Convention date, Dec. 7, 1929. [Class 29.] Absorption systems.-In continuous-cycle inert gas systems having a common absorptionevaporation diffusion chamber, an amount of inert gas is used such that the total pressure in the diffusion chamber is less than that in the generator and condenser and not much greater than the refrigerant vapour pressure at the normal evaporating temperature, the pressure difference in the system being balanced by liquid columns of moderate height. The system is particularly applicable to air-cooled machines employing refrigerants of low vapour pressure, such as water, with sulphuric acid or alkali lye as absorbent, and toluene, with chinolin or paraffin oil as absorbent. A mixture of water and sulphuric acid in a heated generator 1 is lifted by evolution of vapour to a separation chamber 4, whence the liquid flows through a pipe 7 to a perforated annular channel 8 in an annular absorption-evaporation chamber 9, while vapour flows to a condenser 6 and the condensate through a pipe 17 to a channel 16. The concentric or eccentric walls 11, 12 of the chamber 9 are covered with porous material, and the strong liquor collects in a reservoir 23 and returns by pipe 26 to the generator. The space 13 inside the wall 12 may form an air flue for cooling the absorber wall, and the condenser may be located in it, while the outer wall 11 is surrounded by an insulated cooling chamber 22. Alternatively the cooling chamber may be inside and the air space outside the diffusion chamber.
Patent GB-625458-A (GB)
Title: Improvements relating to ceilings
IPC: E04B9/20
Filed: 1946-12-18
Abstract: 625,458. Nails. OCHSENBEIN, E. Dec. 18, 1946, Nos. 37321 and 37322. Convention dates, Nov. 17, 1945 and May 23, 1946. [Class 89 (ii)] [Also in Group X] A ceiling comprising plaster 9 carried by a lath grid 8 is suspended from beams 7 by means of twopart nails which permit a slight rocking movement of the ceiling relatively to the beams whereby swelling or shrinking of the latter does not cause cracks &c. in the plaster. In the form shown in Fig. 5 each nail comprises a pointed sleeve 1 having a partially closed end 3 and in which the nail portion, having a head 5, 5<SP>1</SP> at each end, is slidably mounted. The grid is nailed on to the beams by driving the two-part nail in the usual way ; the grid is then allowed to move downwardly to the position shown wherein the head 5 contacts the partially closed end of the sleeve. In the form shown in Fig. 10 the nail portion proper is pointed and is driven in by blows on the fully-closed end of the sleeve.
Patent GB-1449056-A (GB)
Title: Lasers
IPC: H01S3/036
Filed: 1973-08-07
Abstract: 1449056 Separating helium from gas mixtures BOC INTERNATIONAL Ltd 7 Aug 1974 [7 Aug 1973] 37410/73 Heading B1L [Also in Division H1] In a gas laser in which a 75% He, 15% N and 10% CO 2  active gas medium flows through a gas tube 1 from an inlet to an exhaust, the helium content of the exhaust gas is substantially recovered by diffusion through one or more semi-permeable membranes 5 and is then used to augment the fresh gases 9 applied to the laser inlet. A high gas flow rate system is shown which includes a blower 2 and compressor 3 in the exhaust gas path leading to gas fractionation units 4, 7. Each unit includes at least one fluorinated ethylene propylene copolymer membrane 0.001 inch thick, and at least 3 square metres in area. Both units are coupled in parallel to a water vapour and impurity trap 8 and a controlling valve 9 in the inlet path. A low gas flow rate system may alternatively be used comprising a vacuum pump 2 and an oil vapour trap 3.
Patent GB-1334026-A (GB)
Title: Rotary cutter-head
IPC: B23B3/26
Filed: 1971-08-10
Abstract: 1334026 Rotary tool heads TH KIESERLING & ALBRECHT 10 Aug 1971 [3 Dec 1970] 37527/71 Heading B3T A rotary cutter head comprises one or more radially displaceable cutter holders 8 mounted on a hollow drive shaft 2 mounted on bearings 3, 4, within the head, the radial displacement of the cutters 6 with holders 8 being effected by an annular adjusting sleeve 9 within the drive shaft and which is axially movable relative to the drive shaft, the sleeve and tool holder(s) having complementary co-operating inclined surfaces 8a, 9a whereby axial movement of the sleeve causes radial movement of the or each tool holder. The sleeve 9 is attached by rods 10 to a thrust bearing 11 which is axially displaceable relative to the drive shaft 2 by way of threaded spindles 14 within the head and having gears 15 engaging with a common rotatable ring gear 16. One of the spindles carries a drive gear 17 which is connected to a drive motor through two alternative gear trains which provide rapid initial adjustment of the cutting tools and final fine adjustment respectively.
Patent GB-1247988-A (GB)
Title: Resonant induction manifold for internal combustion reciprocating engines
IPC: F02B27/00
Filed: 1969-07-25
Abstract: 1,247,988. I.C. engine induction passages. FIAT SpA. July 25, 1969 [Aug. 1, 1968], No.37536/69. Heading F1B. In an I. C. engine having an even number of cylinders the induction manifold comprises two symmetrical manifold sections connected to equal numbers of cylinders, the free ends of the sections remote from the cylinders being inter-connected without a break in continuity other than a central air supply inlet which is disposed at the junction inter-connection of the manifold sections at a point corresponding to a pressure node therein, whereby the manifolds form a half wave resonant standing wave system when the engine speed corresponds to maximum power output. A six cylinder engine has the respective inlet manifold sections (2, 3, 4) and (5, 6, 7) Fig. 1 (not shown) of each set of three cylinders (A, B, C) and (D, E, F) connected to inlet pipe sections (8, 9) which are joined together at their junction with an air supply inlet (10). In another embodiment the manifold sections are formed from a single length of tube having a central divider 20, Fig. 5. A sealing plug 23 divides the cylinders and the air inlet 10 is located at the junctions of the tubes 18, 19. In a further embodiment a pipe (24), Fig. 6 (not shown) is arranged non-coaxially in an external pipe (26).
Patent GB-1481980-A (GB)
Title: Ceiling structures
IPC: E04B9/20
Filed: 1974-08-29
Abstract: 1481980 Beams for suspended ceiling frameworks TRIVA AS 29 Aug 1974 [29 Aug 1973] 37835/74 Headings E1K and E1W A beam 21 has upwardly directed resilient side flanges 28a, 28b connected together by a resilient smoothly curved intermediate U- shaped web which flanges may be manually pressed towards each other to engage projections on a support and which beam also has lower resilient flanges 24a, 24b with facing portions for resiliently gripping panel fixing means 22. The support 23 may be a spanning beam. The panels fixing means 22 may be an inverted T-section rail or short clamp which may either directly engage a groove in a panel edge or where weak gypsum panels are used it may engage a strengthening strip (29) Fig. 7 (not shown) let into the panel edge. Alternatively the panels may be of chipboard, mineral wool slabs or long narrow perforated aluminium trays filled with sound absorbing material.
Patent GB-841884-A (GB)
Title: The production of granules of red lead and/or litharge
IPC: C01G21/02
Filed: 1956-12-12
Abstract: Granules of red lead or litharge are prepared by mixing the powdered oxide with 5% to 15% by weight of a binding agent whilst maintaining the mixture in constant movement until granules are formed, heating the granules to a temperature not exceeding 300 DEG C., cooling, and sifting.  The binding agent may be added all at once or dropwise to the oxide, or it may be sprayed on.  A wetting agent may be added to the mixture.  Binding agents specified are sodium and potassium silicates, polyhydric alcohols, especially glycerol, dispersions of synthetic resins, for example polyvinyl chloride, polyacrylic acid, and polystyrene, waste sulphite liquor, and waste molasses.
Patent GB-1287105-A (GB)
Title: Improvements in or relating to tank washers
Inventor: ROBINSON MICHAEL
IPC: B08B9/093
Filed: 1969-07-29
Abstract: 1287105 Cleaning tanks STREAMFISHER Ltd 27 July 1970 [29 July 1969] 38049/69 Heading A4F [Also in Divisions B2 and F1] A tank washing apparatus comprises nozzles 7 to 10 pivotally mounted on a base 3 formed from a substantially cuboid metal block and rotatable on a mounting 1 secured to a supply pipe (not shown) for cleaning liquid, a piston and cylinder device 12, 14 for oscillating the nozzles about an axis transverse to that about which the base 3 is rotatable, and a one-way drive mechanism actuated by the nozzles for rotating the base 3, the mounting 1 and a shaft 6 carrying the nozzles being journalled in mutually perpendicular intercommunicating holes in the base 3. Liquid is fed to the nozzles via apertures in the hollow rotatable shaft 6. Cleaning liquid also passes via a pipe (15) Fig. 7 (not shown) or 16 to one or other end of the cylinder 14, to move the piston 12 up or down, depending upon the position of a valve 19 actuated at the end of a piston stroke by mechanism comprising a lever 23, springs 28, and a toggle 27 coupled to the piston rod 13. The nozzles are oscillated by a connecting rod (30) Fig.6 (not shown) coupled to the piston rod 13 and to a crank (31) secured to the shaft 6. The mechanism for rotating the base 3 includes a lever 50, extending between the nozzles 9, 10 to be struck thereby, and held between a pulley 46 secured non-rotatably to the mounting 1, and a pin 49, Fig.4, on an eccentric sleeve 48 rotatable on the pulley 46. The lever 50 is so held that when it is urged by a nozzle in the direction A the sleeve 48 is prevented from rotating on the pulley 46 and the base 3 carrying the nozzles is caused to rotate relatively to the mounting 1. When however, the lever 50 is urged in the direction B it rotates with the sleeve 48 relatively to the pulley 46, and no relative motion occurs between the base 3 and the mounting 1.
Patent GB-348558-A (GB)
Title: Improvements in drying and/or cooling apparatus
IPC: F26B17/00
Filed: 1929-12-12
Abstract: 348,558. Drying and cooling cattle food &c. DRYDEN, W., Grimshaw Street Foundry, Preston, Lancashire. Dec. 12, 1929, No. 38073. [Classes 29 and 34 (ii).] In apparatus for drying or cooling cattle cake &c. the material is fed over a fixed or rotating perforated cone B from the edges of which it falls on to a perforated inverted cone C over which the material is fed to a central outlet O by means of a spiral conveyer D rotated by a shaft K. Air is drawn into the casing A at T and exhausted at S, passing upwards transversely through the material. The conical spiral conveyer D is carried by a frame q<2> on the shaft K which shaft is divided from a shaft P by bevel gearing housed in a casing H within the cone B. Dust passing through the cone C is swept by rotary inclined scrapers E to a separate outlet F. The conveyer D may be stationary, the cone C being made to rotate. In a modification the shaft K is driven by worm gearing. A conical spiral conveyer may be arranged on the cone B. The direction of flow of the air may be reversed, and auxiliary air may be supplied through the radial casings G carrying the gear-box. The main axis may be inclined.