baber/WOPTO huggingface dataset:
Patent GB-445918-A (GB)
Title: Fastener device
IPC: B62D13/04
Filed: 1935-07-22
Abstract: 445,918. Stud-and-slot fastenings. FORD MOTOR CO., Ltd., 88, Regent Street, London. July 22, 1935, No. 20750. Convention date, March 6. [Class 44] A fastening, described as applied to securing a trim moulding in place on an automobile, but applicable to securing other members, such as instrument panels or name plates, and of the kind comprising a pin secured to the article and passed through an aperture in the support, where it is secured by a spring member with key-hole slot engaging a groove in the pin, is characterized by the provision of a hump on the spring member to retain it in place. Figs. 1 and 2 show a mounting strip 11 with pin 12, cast integral therewith passed through a panel 10 and secured by a member 14 having spring arms bearing against the panel and a keyhole slot 16 receiving the end of the pin, the narrow portion of the slot being engaged by sliding movement with a groove 13. The hump 18 is provided to retain member 14 against accidental release movement.
Patent GB-940206-A (GB)
Title: Improvements relating to drills
Inventor: COTTRELL ALFRED CHARLES
IPC: B23B51/02
Filed: 1960-06-14
Abstract: 940,206. Drills. BROOKE TOOL MANUFACTURING CO. Ltd. June 14, 1961 [June 14, 1960], No. 20769/60. Heading B3C. A fluted drill has chip breakers formed by a recess 13 on the leading face 16 of each flute, the faces 16 being of convex form and the trailing edges 18 being relieved to maintain a clearance C substantially equivalent to that of a conventional drill.
Patent GB-1427108-A (GB)
Title: Digital/analogue converters
IPC: H03K9/08
Filed: 1974-05-10
Abstract: 1427108 Digital-to-analogue conversion GRUNDIG EMV 10 May 1974 [10 May 1973] 20787/74 Heading H3H In digital-to-analogue conversion involving intermediate production of a square-wave signal of mark/space ratio dependent on the digital input signal, two antiphase mark/space square wave signals of like periodicity R 10 , R 20  are produced and applied to terminals E 1 , Eg respectively of the circuit shown in Fig. 2 to neutralize the fundamental alternating component. Signals R 10 , R 20  may be of equal or different amplitudes, resistors R 1 , R 2  being equal or different accordingly.
Patent GB-258064-A (GB)
Title: Improvements in engine starter
IPC: F02N99/00
Filed: 1925-08-19
Abstract: 258,064. Dehn, F. B., (Aeromarine Plane & Motor Co., Inc.). Aug. 19, 1925. Securing together machine elements for transmitting rotary motion.-In an engine starter in which a flywheel is set in rotation and then connected to the engine, a transmission between the flywheel and the engine includes a coupling preset for slipping under a predetermined load, in order to limit the driving effort of the flywheel upon the engine. As shown, the coupling comprises a rotary drum 18 surrounded by a helical friction band 20. The drum 18 is connected to the engine shaft 13 by toothed gearing 19, 35 and an axially movable dog-clutch member 38. The band 20 may be formed by cutting a helical slot in a cylinder and is provided at one end with splines 21 in engagement with splines on a gearwheel 24 meshing with a pinion 15 on the shaft of the flywheel 11. Splines 22 on the other end of the band 20 engage splines in a cylindrical member 27 carrying a spider 30, tension springs 33 being connected to lugs 31 on the spider and to lugs 34 on the gear 24 in order to tighten the band 20 on the drum 18. The spider is adjustable relatively to the member 27 by means of an adjusting screw in order to vary the limiting load which causes the band 20 to slip on the drum.
Patent GB-725503-A (GB)
Title: Ceramic protective layer for metallic gas turbine elements containing chromium
IPC: F01D5/28
Filed: 1953-07-28
Abstract: 725,503. Elastic-fluid turbines; jet-propulsion plant. AKT.-GES. BROWN, BOVERI, & CIE. July 28, 1953 [July 28, 1952], No. 20875/53. Drawings to Specification. Class 110 (3). [Also in Groups XII and XXIII] The chrome-steel of gas-turbine constructional elements such as gas-turbine blades or exhaust pipes of aircraft engines is protected against the effects of vanadium compounds in oil fuel slags by multiple layers of vitreous ceramic material fused thereon. The foundation layer contains Cr 2 O 3  ; the, subsequent layers each fused to a preceding layer also contain Cr 2 O 3  together with increasing amounts of MgO. A final layer of pure chromium may be provided.
Patent GB-844928-A (GB)
Title: Improvements in induction motors
Inventor: MAGGS ARTHUR HEMBOROUGH
IPC: H02K17/08
Filed: 1956-07-05
Abstract: 844,928. Induction motors. BRITISH THOMSON-HOUSTON CO. Ltd. May 21, 1957 [July 5, 1956], No. 20904/56. Class 35. To reduce the value of the peak voltage applied to the capacitor during starting, the starting winding of a capacitor-start singlephase induction motor has a resistance at least twice that of a normal starting winding by forming it from a conductor of smaller diameter than normal having regard to the intended duty of the motor, and a permanently opencircuited winding is provided in juxtaposition to the starting winding and has its turns electrically insulated from but in heat exchangement with those of the starting winding. This enables an electrolytic capacitor to be used and the open-circuited winding acts a sump to maintain the high resistance starting winding temperature comparable with that of a starting winding of normal resistance. The two windings may be of enamelled copper wire of the same diameter and wound in the same slots.
Patent GB-662025-A (GB)
Title: Diversified transmission
IPC: H04B7/02
Filed: 1949-08-11
Abstract: 662,025. Radio signalling. CLARK, G. M. (Radio Corporation of America). Aug. 11, 1949, No. 20926/49. Class 40 (v). In a diversity radio signalling system having a plurality of spaced aerials each fed by a highfrequency generator, the generated frequencies differ by an audio frequency and are transmitted simultaneously by the respective aerials, and apparatus is 'provided for shifting the generated frequencies in unison in accordance with telegraphic signals, the amount of said shifting being also an audio frequency. As shown in Fig. 1 the spaced aerial systems A and B are connected with transmitters C and D respectively which radiate the same message on carriers of two different wavelengths, a key K shifting the frequencies of the transmitters between two frequencies representing mark and space respectively. Fig. 2 (not shown), gives a transmitter arrangement providing rest frequencies of 12444.4 kc/s. and 12444.5 kc/s., respectively, each carrier frequency being shifted by keying 450 cycles per sec. The wave transmitted is shown in Fig. 3, the frequency F1 varying between Fm and Fs, and frequency F1+100 varying between Fm+100 and Fs+100. At the receiver, Fig. 3, the unit 10 includes an R.F. amplifier, oscillator, frequency changer, and I.F. amplifier passing a band of frequencies between 449 and 452 kc/s., the output being fed to a second I.F. amplifier and frequency changer system in a unit 12 providing an output in a band between 49 and 52 kc/s., A.G.C. being connected between the units 10 and 12. These signals are fed to a unit 14 in which limiting takes place, the two carriers and their sidebands being passed to band-pass filters 16 and 18, the filter 16 passing the space frequencies and having a mean passband frequency of 50 kc/s. and a band-width of 800 cycles, and the filter 18 passing the mark frequencies and having the same characteristics with a mean frequency of 51 kc/s. The space and mark frequencies are then passed to detectors 20 and 22, respectively, the load resistors 24 and 26 being connected so that the differential of the detector outputs is supplied through a filter 30 to a recording apparatus. In an alternative arrangement more suitable for high-speed keying the two frequencies transmitted differ by 2 kc/s. and are each shifted  450 cycles per sec. by keying. At the receiver, Fig. 4 (not shown), the mark and space frequencies of both carriers are fed to units 10, 12 and 14 as in Fig. 3, and the mark and space frequencies are selected by four filters whose outputs are rectified, the mark and space currents being respectively combined and connected differentially in series so that the grid of a valve is driven more negative on " mark " and more positive on " space."
Patent GB-1127843-A (GB)
Title: Process for the improved drying of synthetic rubber
IPC: B29B13/06
Filed: 1967-05-05
Abstract: 1,127,843.  Drying synthetic rubber. CHEMISCHE WERKE HULS A.G. 5 May, 1967 [6 May, 1966], No. 20974/67. Heading C3P. Pellets of synthetic rubber having a moisture content of 5-30% by weight are accelerated and/or decelerated at 10 to 10,000 times the acceleration due to gravity at a temperature of 20‹ to 100‹ C. before being supplied to a conventional hot air dryer. The pellets may be accelerated by a radial blower or by a hammer mill whose screen cage has been enlarged. Deceleration may be caused by the pellets hitting a stationary surface.
Patent GB-675464-A (GB)
Title: Reflecting sheets for photographic assemblies
IPC: G03B35/24
Filed: 1945-08-17
Abstract: 675,464. Stereograms. RELIEPHOGRAPHIE, SOC. POUR L'EXPLOITATION DES PROCEDES DE PHOTOGRAPHIE EN RELIEF M. BONNET. Aug. 17,1945 [Oct. 6, 1943], No. 21041/45. Classes 97 (i) and 98 (ii). [Also in Group XV] In a photographic assembly the image-layer is applied to a rear reflecting sheet, one surface of which is striated with parallel rectilinear grooves of substantially triangular section. As shown in Fig. 1, the image-layer 1 is carried by a support 2 as of glass and is backed by a fluted reflecting sheet 3. The flutes may be filled up with a transparent material such as gelatine to provide a plane surface on which the image-layer may be applied. This material may include particles in suspension (e.g. titanium dioxide or baryta sulphate) to ensure diffusion of the light. In another form, the support 3 is transparent or slightly opalescent and the image-layer is applied to the plane face thereof; in this case, a reflecting coating is provided on the fluted surface. Specification 615,629 is referred to. The Specification as open to inspection under Sect. 91 describes also a parallax panoramagram image-layer 1 coated on a layer 5 of transparent material which fills the flutes of a reflecting sheet 3 attached to a support 2. A lenticular screen 16, 17 is applied to the image-layer. A device for determining the correct inclination of the flutes to the sides of the image-layer is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-878909-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1958-07-02
Abstract: 878,909. Attaching glass scales to metal panels. F. T. PRODUCTS Ltd. June 16, 1959 [July 2, 1958], No. 21219/58. Class 20(3) [Also in Group XXV]  Two panels, e.g. a glass panel bearing a scale and a metal panel part of a radio set chassis are attached together so that their edges are flush by a U-shaped resilient single strip clip fastener 10 Fig. 5 having a lug 13 on an inwardly bent limb 16 engaging in a hole or recess 20 in one of the panels 18, 19, its lug 13 being rounded as shown in Fig. 1. Alternatively, the inwardly bent limb 22A Figs. 6, 8 may be convex towards the opposite limb and provided with a sheared out lug 13A to engage the hole 20.
Patent GB-730443-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/08
Filed: 1953-07-31
Abstract: 730,443. Duplicating machines. RITZERFELD, W., and RITZERFELD, G. July 31, 1953, No. 21270/53. Class 100 (2). A rotary duplicating machine. comprises side walls 1 carrying printing and impression cylinders 4, 7, the side walls being connected to and stiffened by a member a portion 2 of which forms a feed table and another portion 3 of which forms the bottom of the machine, a strut 21 being arranged between the side walls for stiffening the portion of the side walls remote from the bottom and for preventing a mirrorscript original 23 when attached to the printing cylinder from folding over and detaching itself from the cylinder during rotation. The portions 2, 3 of the stiffening member may comprise a single piece of sheet metal, or it may comprise two or more interconnected parts. A curved lid 28 may be connected to the rear end of the bottom portion 3 by hinges or plug- and-socket joints and a latch and lock 30, 31 may be provided for securing the free end of the lid to the other end of the bottom portion 3. A handle 29 may be provided at this point to facilitate carrying the machine. The sheetdamping device comprises a felt 14 pivotally mounted about pins 12 fixed to the side wall. A lever 16 fixed to the damping device carries a roller 17 adapted to co-operate with a cam 15 mounted on the end of the printing cylinder and is loaded by a spring 20 tending to rotate the damping device to the sheet damping position. In the initial position of the printing cylinder a rise part 18 of the cam 15 maintains the damping device in the inoperative position. Rotation of the cylinder by the handle 14 causes the damping device to move to operative position. The impression cylinder 7 is mounted on swinging arms 8 pivoted at 9 to the side walls and urged upwards to apply pressure by adjustable screws 10. The upper edges of the arms 8 extend in the same direction as that in which the sheet leaves the printing cylinder and strippers 26 mounted on a transverse rail 25 on the arms 8 remove the sheets from the printing cylinder. The distance between the strippers is greater than the width of the master sheet 23 so that it can pass between them. The master sheet is adapted to fall out of the retaining slot 22 in the cylinder after the printing operation and be received in a collecting tray 27 also attached to the transverse rail 25. It is thereby possible to attach a fresh mirror-script master sheet to the cylinder after every rotation without manually removing the previous one. The handle 14 may be detachable for location inside the machine when closed.
Patent GB-1475712-A (GB)
Title: Gun mounting
IPC: F41A23/00
Filed: 1974-05-14
Abstract: 1475712 Gun mountings DANSK INDUSTRI SYNDIKAT A/S 14 May 1974 [15 May 1973] 21352/74 Heading F3C [Also in Division F2] A swivel arm system for supporting a gun mounting fork has two arm arrangements one above the other, the first arm arrangement 1 having four members, two long members 11, 19 of unequal length connected to two short members 14, 15 of unequal length, members 11, 15 being equal in total length to members 19, 14; adjacent ends of members 11, 19 are connected by the shortest member 14 at fused points 3, 13, the second arm arrangement 2 being pivoted at a point 12 to a connection between members 11 and 15, the member 15 being fixed to the second arrangement in respect of movement in its plane of pivoting, the other end 10 of the second arrangement being suitable for carrying the weapon fork. Fig. 5 shows the first arm arrangement 1 pivoted on a fixed part of a vehicle turret such that the pivots 3, 13 lie on a line passing through a gunners position, the free end 10 having a locus approximating a circle around the gunner. When moved, the end 10 does not follow a true circle whose centre corresponds with the gunner at a latch centre point C when transversed a large angle from an initial line of symmetry U to overcome this, the member 11 is articulated at 16, Fig. 6, so that after a small movement from the initial line of symmetry U, a part 17 of the member 11 is held stationary by said stop 18 and the remainder of the member rotates about the point 16, enabling the end 10 substantially to traverse the circle of centre C. A further stop 18<SP>1</SP> is provided for movement in the other direction from the line of symmetry U. The arm arrangement 2 may be in the form of a parallelogram link, Fig. 1, not shown, enabling vertical gun movement; here a spring is used to control such movement, and a brake may be used to retain the weapon in a given vertical position. The weapon fork may be constructed as a spring loaded tipping fork or a recoil absorbing spring or buffer mechanism. The pivots 3, 13 may be mounted on a common bearing block or casing carried by a fixed mounting which may also carry the stops 18, 18<SP>1</SP>. This block or casing may be in two parts comprising a lower portion non-rotatable in a fixed bearing and an upper part rotatable on the lower part so that the circle centre C can be moved to effectively coincide with more than one hatch for different swivelling operations.
Patent GB-352267-A (GB)
Title: An apparatus for detecting and indicating the presence of inflammable gases in air
IPC: G01N25/36
Filed: 1930-07-15
Abstract: <PICT:0352267/III/1> A device for detecting combustible gases in air comprises a bi-metallic strip 1 formed into a helix or like shape capable of acting as a chimney to the flame 5 of a lamp.  An increase in the flame due to the presence of inflammable gas causes the strip to expand and close a contact 7 lighting a lamp 12 or operating any other form of alarm.
Patent GB-870178-A (GB)
Title: Improvements in interchangeable signs and accessories
IPC: G09F7/12
Filed: 1959-06-23
Abstract: 870,178. Signs. MILLS, E. Aug. 21, 1959 [June 23, 1959], No. 21411/59. Drawings to Specification. Class 3(2) In a sign comprising a polished plastic base plate adapted to frictionally receive removable indicia-bearing members the said members each consist of a plastic tablet which has a moulded letter or the like bonded thereto and which is bevelled at one edge to permit its easy removal. The base plate consists of a flexible plastic cushion disposed between a rigid plastic base and a flexible plastic outer face.
Patent GB-1341664-A (GB)
Title: Method of electrophotographic copying
IPC: G03G15/22
Filed: 1972-05-08
Abstract: 1341664 Electro-photographic copying FUJI PHOTO FILM CO Ltd 8 May 1972 [7 May 1971] 21460/72 Heading G2H [Also in Division B5] Electrostatic latent images are formed on a web 3 of transparent, insulating material as it is fed about a photo-conductive drum, are developed with a liquid suspension or a powder cloud and are fixed by application of an opaque or transparent support web 11, so that the developed image is visible either through the transparent material against an opaque background or as a transparency. The transparent, insulating web may be polyethylene, polyvinyl chloride, polyethylene terephthalate, polypropylene, polyvinylidene chloride or polycarbonate, the support web may be a plastics material film containing a dispersed white pigment, or a baryta or other paper, and the two may be held together by application of heat to thermoplastic materials, or by a pressure-sensitive material such as natural rubber adhesives, polybutene, polyisobutylene, polyacrylic ester, polyvinyl acetate, polyvinyl ether maleic anhydride copolymer, and polyisobutyl ethervinyl chloride copolymer. Coatings on either or both webs at ethylenevinylacetate copolymer, polyethylene, polyvinyl acetal, polyester adhesives, polystyrene and resin may alternatively be used to improve heat bonding.
Patent GB-1419056-A (GB)
Title: Manufacture of protein foods
IPC: A23C20/02
Filed: 1974-05-15
Abstract: 1419056 Coagulated protein products CLAUDEL SA 15 May 1974 [18 June 1973] 21470/74 Heading A2B Milk (which may be of animal or vegetable origin) is coagulated to produce a curd, and subjected to ultrafiltration to give a concentrated curd containing only compounds of high molecular weight, especially proteins, the concentrated curd then being further treated. The milk may be obtained from cows, goats, ewes, buffaloes, zebras, mares, camels or asses, or from protein derived from soya beans, chick peas, lentils, rape, sesame or cotton. The milk may be skim milk, or reconstituted milk, and may be pasteurised, sterilised, standardised or homogenised. The curd may also be so treated, either before or after ultrafiltration. The coagulation may be by rennet, lactic acid, bacteria, addition of metal cations or mineral acids, or by heat. The ultrafiltration may be carried out using a pressure of 1 to 60 atm. at 0 to 70C. The concentrated curd contains 10 to 20% solids. Fats, flavourings, and colourings may be added to the curd, or micro-organisms may be inoculated, and the curd matured.
Patent GB-136907-A (GB)
Title: Improvements in and relating to Adjustable Bearing Face for Planing Tools.
Inventor: KRABER GEORGE LOGAN
IPC: B27G13/04
Filed: 1918-12-23
Abstract: 136,907. Kraber, G. L. Dec. 23, 1918. Planing. - In hand-planes having power.operated cutters, the bearing-face of the body h is offset inwardly from a point v, preferably near the line of action of the cutters, and a shoe-plate u is arranged over the offset end and is angularly adjustable by means of a screw y, the depth of cut thus being regulated. The end of the plate u is turned up at w to enable the plane to be passed over rough surfaces and to act upon curved surfaces. The cutter is rotated by compressed air controlled by a valve in the handle j, the blades being secured by the means described in Specification 136,906.
Patent GB-1148077-A (GB)
Title: Pulp compositions
IPC: D21H17/55
Filed: 1966-05-16
Abstract: 1,148,077. Paper. OWENS-ILLINOIS, Inc. 16 May, 1966 [14 May, 1965], No. 21609/66. Heading D2B. A pulp-plastic composition is made by adding to an aqueous slurry of fibres, the major proportion of which are cellulose pulp fibres, at least 10% dry wt. of the pulp solids of an organo-metal compound and an organic thermoplastic polymer. The pulp is then agi tated and the organo-metal compound is hydrolysed to cause fibrillation of the pulp and deposit the hydrolysis product (metal oxide) and polymer onto the fibres. The bulk of the aqueous phase is then removed from the slurry. The pulp may additionally contain glass fibres or flakes. The resulting composition may be shaped, e.g. by pressure and/or heat, into sheet material which can be used for corrugated or liner sheets or board which can be bonded without the use of other adhesives. The pulp-plastic composition can be used as a laminating article with paper, wood and plastic and metal sheets. The polymer can be hydrocarbon wax, a homopolymer or copolymer of ethylene, propylene and but-1-ene, polyvinyl chloride, polyvinyl pyrrolidone, polyvinyl alcohol, polyvinyl acetate, polystyrene, nylon, or preferably an aqueous emulsion of polyethylene. The polymer may be added as a powder or in solution or emulsion form. The organo-metal compound may be of Ti, Zr, Sn or. V, e.g. alkyl titanates, preferably C 1 -C 8  alkyls e.g. tetrabutyl titanates, tetraisopropyl titanates, tetrahexyl titanates, alkyl zirconates, and tin salts of monocarboxylic acids of up to 18 carbon atoms per mol, e.g. stannous oleate, stearate and palmitate, and stannous naphthenate. Corresponding vanadium compounds are also suitable. Dyes, pigments and fillers and dispensing agents, e.g. oleic acid and sodium hydroxide, can be added to the pulp.
Patent GB-603349-A (GB)
Title: An improved method of and means for eliminating electro-static charges in industrial processes
IPC: H05F3/04
Filed: 1946-07-19
Abstract: 603,349. Discharging electricity from fabrics &c. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, HENRY, P. S. H., McDONALD, 1. G., and TODD, J. B. July 19, 1946, No. 21617. [Class 35] Electro-static charges are eliminated by ionisation produced by point discharge, the points being supplied by rectified A.C. In the form shown, a single conducting rod c, carrying the discharge points c' is supported by insulating endplates b, b<SP>1</SP> within a slotted, earthed tube a of conducting material. This rod has a shrouded terminal e connected through a switch f for reversing the polarity of the discharge. In an alternative form, a pair of such rods, separated by a cellulose acetate baffle, are mounted inside the earthed tube and supplied with opposite voltages. Circuit diagrams are given showing how several discharge units are supplied through resistances from a single transformer-rectifier unit, and curves are given showing how the capacity of the circuit has a smoothing action on the discharge voltage.