baber/WOPTO huggingface dataset:
Patent GB-383397-A (GB)
Title: Improvements in machines for treating gummed web
IPC: B31F7/02
Filed: 1931-11-02
Abstract: 383,397. Adhesive-coated paper. BARKER, R. W., 56, Ludgate Hill, London. -(American Bank Note Co. ; 70, Broad Street, Manhattan, New York, U.S.A.) Nov. 2, 1931, No. 30304. [Class 140.] A machine for treating a gum-coated paper web to prevent curling of the corners of sheets cut therefrom, comprises means for supporting a roll of the gummed web, a rewind mechanism for the web, web guide rollers parallel to the supply and rewind rolls, and a pair of blades inclined to one another and to the run of the web with which are associated guide rollers which cause the web to be sharply bent over the edges of the blades to break the film of gum and destroy its surface tension. The supply roll 23, Fig. 1, having the gummed surface of the paper outside is mounted in bearings 12 one of which is movable by a screw 15 for slight angular adjustment of the roll. Lateral adjustment of the roll is effected by a blade 19 engaging a grooved collar 18 on the roll shaft and operable by a screw 21. The web passes over guide rollers 47, 48, 50 .. 53 to a rewinding shaft 24 on which the web is wound by a friction drum 28 driven by toothed gearing 29 and a belt 30 from a power shaft 31. A pressure roller 32 rests on the roll 46 and may be raised by cords 34 wound on drums 36 on a shaft 37 operable by a hand crank 41 and gearing. The roller 32 may be supported in a recess 45 in the guide bracket 26 during the attachment of a web to the winding shaft 24. Between the guide rollers 50, 51 are arranged a pair of blades 54, 55, Figs. 1 and 5, inclined to each other horizontally and vertically and on opposite sides of each blade are a pair of rollers 56 .. 59, adapted to cause the web to be bent sharply over the edges of the blade to break up the gum coating.
Patent GB-665429-A (GB)
Title: Apparatus for testing the wear and abrasion resistance of hard materials
IPC: G01N3/46
Filed: 1949-11-28
Abstract: 665,429. Testing physical properties of materials. GRODZINSKI, P., JACOBSOHN, W. R. J., and INDUSTRIAL DISTRIBUTORS (SALES), Ltd. Nov. 28, 1949, No. 30420/49. Class 106 (ii). Apparatus for testing the wear or abrasion resistance of materials, in particular of hard and brittle substances, comprises an abrading disc supported in fixed bearings mounted on a base and connected to a power drive through a vibration absorbing device, a specimen holder finely adjustable in relation to the abrading disc, and a device for applying a predetermined force feeding the specimen towards the abrading disc. An abrading disc 2 is held between frusto-conical clamping-pieces 3 whose spindle 4 has hardened, ground conical centres 5, 6 running in countersunk fibre inserts in a bearing-block 9, one of which has a central bore through which passes one end of an S-shaped piano wire 10 to be fixed in the conical centre 5 by a set-screw, lubrication being provided by grease-boxes. The other end of the wire 10 is fixed by a set-screw in a centre hole in a shaft of an electric motor 32 whose stator 34 is supported for rotary motion in ball-bearings 35. A yoke 36 screwed to the stator 34 has projecting rods 37, 38 carrying balance weights 39, 40 set to keep the stator stationary at a certain speed of idle running. The additional torque exerted when running under load is counterbalanced by shifting the weight 40 and can be calculated from the reading of a scale 41 indicating the position of the weight 40. The other end of the motor shaft drives a revolution counter. The specimen to be tested is held on a block in a tubular holder 19 and clamped against an inwardly-projecting rim, graduations thereon facilitate angular adjustments of the block for directional abrasion tests. The holder 19 is adjustably mounted and secured by ring nuts on one end of a balance lever 12 which is pivoted on ground conical sintered carbide centres 13, 14 in countersunk sintered carbide inserts in a bracket 17 which is adjustably mounted on a compound slide system 18 permitting angular, height and lateral adjustment. A platform 24 for carrying a load to press the specimen against the abrading disc 2 with a predetermined force is adjustable on a part of the lever 12 carrying counterweights 26, 27 by moving rubber discs attached to the platform 24 and rolling with slight friction in grooves. A spirit level 25 is provided to assist levelling by adjustment of weights 26, 27. In operation the abrasion time is checked by a stop-watch and the speed checked from the revolution counter and the abrasion marks produced in the specimen are measured under a microscope or by interferometer. Vibration damping or absorbing devices other than the S-shaped wire 10 may be employed and miniature ball-bearings may be employed instead of the sintered carbide centres for mounting the balance lever 12. The apparatus is designed for use at high speeds with small loads applied for short periods.
Patent GB-1361011-A (GB)
Title: Motor vehicle differentials
IPC: F16H57/02
Filed: 1971-06-29
Abstract: 1361011 Toothed gearing; differential gear SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 29 June 1971 [30 June 1970] 30448/71 Headings F2Q and F2D In a motor vehicle differential gear housing fabricated from two simple pressed sheet metal parts 1, 4 welded together or formed as a simple coreless die cast body, both the crown wheel 8 and pinion 10 are mounted in the housing 1, 4 by a single and a double annular set of balls 9, 11 respectively located between peripheral grooves in the crown wheel 8 and pinion 10 and outer race grooves formed directly in the material of the housing (as shown) or in steel rings (not shown) cast or pressed in the housing and subsequently machined to form the outer race grooves. Various alternative forms of pressed and welded differential gear housing constructions are illustrated in Figs. 2 to 4 (not shown).
Patent GB-1061782-A (GB)
Title: Improvements in and relating to electric signalling
Inventor: SMITH DAVID HESELTINE
IPC: H04K1/02
Filed: 1962-08-08
Abstract: 1,061,782. Secret transmission. COMMUNICATIONS CONSULTANTS Ltd. Aug. 22, 1963 [Aug. 8, 1962], No. 30463/62. Heading H4R. In a secret transmission system the signals are transmitted with the frequency spectrum alternately inverted and unmodified at a rate dependent on the signal being transmitted, with a synchronizing signal, which may be the carrier of the inverting modulator, transmitted during the periods in which the unmodified signal is transmitted. Fig. 1 shows a transmitter station of a transmission system in which speech is fed from a microphone via a switch 13 either direct or through the inverter 12 to an output line. An oscillator 14 supplies the carrier frequency for the inverter 12 and also supplies a signal which is added to the samples of speech fed direct to the line through the switch 13 to provide a synchronizing signal for the other station. At the co-operating substation, Fig. 2, the synchronizing tone is recovered from the incoming signal by a filter 16 and applied via an amplifier 17 and detector 18 to operate a switch 21 to allow the inverted and erect portions of the incoming signal to pass respectively through the inverter 19 and low-pass filter 20 to the loud-speaker 22. The switch at the transmitter is controlled by the speech signal itself, e.g. by integrating the speech signal and operating a mono-stable multi-vibrator which either operates the switch directly, or overrides, for a period, an astable multivibrator controlling the switch.
Patent GB-480896-A (GB)
Title: Improvements in or relating to devices for demonstrating the waterproofness and air porosity of fabrics
IPC: G01N15/08
Filed: 1936-11-11
Abstract: 480,896. Testing fabrics. HEALEY, C. J. Nov. 11, 1936, No. 30811. [Class 42 (ii)] A device for demonstrating the waterproofness and air porosity of fabrics comprises means for clamping the fabric to one or more sides of a transparent chamber J, means 7 for supplying gas to the chamber, the gas being coloured, or caused to colour on passing through the fabric 2, or its passage being shown by bubbles rising in the water 8, or by its being ignited after passing through a wire screen 19 separated slightly from the fabric. The water 8 may be inside the container as shown in Fig. 4, may be in a superposed container 10, Fig. 2, or may be sprayed on the outer side of the fabric. The fabric may be vibrated or rubbed &c. by brushes, rotating spokes, cams, &c. 11, 17.
Patent GB-346734-A (GB)
Title: Improvements in and relating to the production of potassium nitrate with simultaneous obtaining of dimagnesium phosphate
IPC: C01D9/00
Filed: 1929-10-11
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) comprises a modification of the process of the parent Specification for producing potassium nitrate and dimagnesium phosphate, wherein crude phosphate is decomposed with nitric acid, and is treated with a mixture of potassium and magnesium sulphates, or a suitable natural compound such as schonite, leonite or langbeinite, the quantity of magnesium being chosen equivalent to precipitate the phosphoric acid as dimagnesium phosphate.  After the separation of gypsum, the solution is treated with potassium carbonate to precipitate the bulk of the magnesium as dimagnesium phosphate, which is separated.  The remaining, say, 1 per cent is precipitated by further addition of potassium carbonate as trimagnesium phosphate, which is subsequently used to precipitate dimagnesium phosphate.  Potassium nitrate is obtained by evaporation and cooling of the mother liquor, or by cooling alone.
Patent GB-480664-A (GB)
Title: Improvements in engraving machines
IPC: B23Q35/20
Filed: 1936-05-19
Abstract: 480,664. Trueing grinding wheels. KAPELLA, Ltd., and RO 13 WELL. R. V., TAYLOR, E. M., and STAFFORD, G., [Representatives of TAYLOR, W.]. May 19, 1936, No. 30940/37. Divided out of 430,584. [Class 60] In an engraving or like copying machine wherein the tool employed is a grinding-wheel D, the operative portion of which corresponds in shape to that of a tracer C, the wheel is trued by a diamond, &c., O<3> mounted on the work supporting table H of the machine, and moved under control of a pantograph B<1> . . B<4>, whilst a follower O<2> is moved in contact with the tracer. In order that the shape of the diamond may correspond to that of the follower, the tracer is replaced by a straight edged former O<1> and the grinding-wheel is replaced by a lap 0 having a cylindrical working edge, the diamond then being shaped by movement of the pantograph whilst the follower O<2> is moved in contact with the former O<1>. The edges of the lap and the follower are set in a plane containing the axis B of the pantograph by the aid of two microscopes or other sighting- devices which also are employed in the actual trueing operation, and the lap is reciprocated np and down ; the line of reciprocation may be inclined to the vertical to give a front rake to the diamond. Specifications 480,584, 480,661, 480,663, and 480,668 are referred to.
Patent GB-1498858-A (GB)
Title: Hot water boilers
IPC: F24H1/18
Filed: 1975-07-24
Abstract: 1498858 Solid fuel water heating boilers DAIICHI CHUZO CO Ltd 24 July 1975 [18 June 1975] 31047/75 Heading F4A A water heating boiler burning chaff, sawdust or suchlike solid waste as fuel comprises a burner compartment 2 and a boiler compartment 3 arranged in spaced relationship on a base 1, a tube 20 supplying combustion gases from a solid fuel burner 5 to water tubes 26 which interconnect a feedwater chamber 24 and a hot water tank 27; a further tube 17 being arranged about tube 20 to define with it a passage for secondary combustion air. Primary combustion air is admitted at 15 to rise through a combustion cylinder 10 and fuel is put in via lid 4. Water is supplied by pipe 39 and hot water delivered at 34. A baffle 28 having a side wall 29 and a base 30 provided with an aperture 31 causes water to circulate upwards close to the walls of tank 27 to be further heated by gases passing to outlet 35. An auxiliary grate 45 and doors 47 to admit air are provided and an alternative burner can be introduced at 42.
Patent GB-247705-A (GB)
Title: Improvements in methods of and means for measuring and selling electricity
IPC: G01R11/56
Filed: 1924-12-29
Abstract: 247,705. Wilkinson, G. Dec. 29, 1924. Special quantities, registering. - A meter registering on separate counting-trains L, H according as the current is above or below a predetermined value has magnetic means for ensuring that the driving-wheel D shall not take up an intermediate position between the trains L, H. In series with the series coil S of the meter is a solenoid D<1> acting on a magnetic plunger I which is pivoted to a lever C fulcrumed at C<1> and carrying the driving-wheel D at its other end. In the normal position shown in which the driving-wheel D engages the lowrate counting-mechanism L. the plunger I rests upon or in close proximity to a magnetized screw B'. No motion of the plunger I takes place until the current in the solenoid D<1> is such that the upward pull on the plunger is sufficient to overcome the magnetic attraction and tear it away from the screw B<1>. The plunger is then carried into the field of a second magnetized screw B, which ensures the engagement of the driving- wheel D with the high-rate train H. Stops G, G<1> may be provided for the lever C. The value of the current at which the high-rate train is brought into operation may be varied by adjusting the screws B, B<1>. For alternating-current meters the plunger I may be made of a close coil of iron wire, and may be jacketted with cotton or other soft fibre to ensure silent working.
Patent GB-722496-A (GB)
Title: Improvements in lathes
IPC: B23Q3/18
Filed: 1952-12-09
Abstract: 722,496. Lathe details; chucks. MULLER, W., and SCHAFHAUSEN, K. Dec. 9, 1952 [Dec. 11, 1951], No. 31142/52. Class 83 (3). A lathe for turning tapered ingots of circular cross-section has means for centring the work 1, Fig. 1, comprising a roller 18 radially adjusted to bear against the work adjacent a chuck 2 for supporting one end of the ingot, the chuck being displaced eccentrically against friction means which are tightened to prevent movement during cutting. The chuck 2 has a cup-end for supporting the "dead" end of the ingot. The cup portion is supported radially by spring plungers 5 in a casing 8 provided with a series of driving and driven rings and rings 14 of friction material between them, similar to a clutch. The ingot is placed with its "dead" end in the cup and a fluid-operated tailstock centre 3 brought up to exert a light pressure on the other end. The centring roller 18 is then moved against the periphery of the ingot adjacent the " dead end and the cup portion of the chuck is thereby moved to an eccentric position with the ingot running approximately " true." The tailstock is then moved further to the left, Fig. 1, to tighten the cup portion of the chuck against the driving rings for the turning operation on the ingot. The lathe has an overhead tool slide 22, Fig. 2, carrying a turning tool 26 all supported on a carriage 23 fed by an independent electric motor 28. A bar 20 pivoted to the machine frame at 20a is set to the required taper for the ingot and guides the tool slide during the longitudinal traverse of the carriage.
Patent GB-909131-A (GB)
Title: Improvements in or relating to flooring or roof slabs or beams in building construction
IPC: E04B5/06
Filed: 1957-10-04
Abstract: 909,131. Floors and roofs. WEST OF ENGLAND CONCRETE CO. Ltd., and LOVE, A. C. Jan. 5, 1959 [Oct. 4, 1957], No. 31185/57. Class 20 (4). A roofing or floor slab or beam of concrete &c. has ribs on its under surface, at least two adjacent ribs 3, 4 being apertured to receive a rod 8 extending transversely across the space between the ribs 3, 4 to support service conduits, electric cables &c. within said space, a gap being provided adjacent one of said ribs to provide a clearance for introducing the rod into the apertures. In the embodiment described the clearance gap is provided by a comparatively wide space between the rib 3 and a third rib 2. The slabs are joined together by series of inter-engaging complementary rebates 11, 12 on the sides of the slabs. Additional channels 7 may be provided to receive service conduits &c. extending transversely of the ribs and supported on rods introduced across the channels 7 from the channels 6. Plaster board 13 under the assembled slabs and one or more layers of rubberoid above the assembly are provided.
Patent GB-1012710-A (GB)
Title: Golf balls
IPC: A63B37/00
Filed: 1964-08-04
Abstract: A golf ball consists essentially of a vulcanized composition the polymeric component of which is at least one synthetic trans-polymer of a conjugated diolefin hydrocarbon containing up to eight carbon atoms in the molecule, optionally in admixture with a minor proportion of a rubbery hydrocarbon polymer.  In the examples, the polymeric component of the ball is either wholly trans-polyisoprene, a blend of trans-polyisoprene and a polybutadiene, or an inner core contains trans-polybutadiene and an outer covering contains trans-polyisoprene.  Other specified dienes are piperylene and 2,3-di-methyl - 1,3 - butadiene. Suitable rubbery hydrocarbon polymers are natural rubbers, 1,4-polyisoprene, polymers of butadiene and piperylene, copolymers of butadiene with styrene or acrylonitrile and copolymers of ethylene and propylene.  The polymer has a trans-content of at least 80%.  Vulcanization is effected by heat, vulcanizing agents and pigments being added to the mix.ALSO:Golf balls, having a high resistance to cut, consist essentially of a vulcanised composition the polymeric component of which is at least one synthetic trans-polymer of a conjugated diolefin hydrocarbon containing up to eight carbon atoms in the molecule, optionally in admixture with a minor proportion of a rubbery hydrocarbon polymer. The balls may be made wholly of one composition or an inner core may be made of one transpolymer containing composition and an outer covering made of another trans-polymer containing composition.
Patent GB-404251-A (GB)
Title: Method of producing firmly adherent galvanic deposits on aluminium and its alloys
IPC: C25D5/44
Filed: 1933-11-09
Abstract: 404,251. Electroplating. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Nov. 9, 1933, No. 31263. Convention date, Feb. 15. Addition to 385,067. [Class 41.] Aluminium or an alloy thereof is prepared for electro-plating by anodic treatment in a bath containing phosphoric acid to form an oxide film which is then reduced in an alkaline bath containing metallic compounds with simultaneous deposition of metal such as copper or brass which forms a base for further electrodeposition. The anodic bath preferably contains 1-10 per cent of phosphoric acid and is operated at 40-50‹ C. The temperature should, however, be lower for alloys having a considerable heavy metal content. The period of oxidation, the bath temperature and the concentration should be regulated to obtain a porous oxide layer. Direct or alternating current may be used. Alloys containing magnesium may be treated. Specification 394,637, is referred to.
Patent GB-299847-A (GB)
Title: Improvements in or relating to sound-emitting apparatus
IPC: H04R23/00
Filed: 1928-10-29
Abstract: 299,847. Pintsch Akt.-Ges., J. Nov. 2, 1927, [Convention date]. Instruments utilizing arc, spark, or other discharge effects.-In a sound-emitting apparatus, an electric spark or sparks for generating the sound waves is combined with a resonator which is tuned approximately to the frequency with which the spark is fed or which is superimposed thereon. Fig. 1 shows a construction in which a spark gap C, D is enclosed in a resonator A having an opening B. The poles C, D may be insulated from the walls of the resonator as shown in Fig. 1, or the resonator itself may constitute one pole as shown in Fig. 2. A plurality of spark gaps may be employed as shown in Figs. 3 and 3a. In a modified construction, a horn may be associated with the opening B of the resonator whilst in a further modification the resonator is formed with two openings, each of which has a horn associated therewith. The Specification as open to inspection under Sect. 91 (3) (a) comprises also arrangements employing electric arcs instead of spark gaps. This subject-matter does not appear in the Specification as accepted.
Patent GB-588429-A (GB)
Title: A friction hinge device particularly applicable to endless tracks for vehicles
IPC: B62D55/088
Filed: 1939-12-04
Abstract: 588,429. Hinges for endless tracks for vehicles. SOC NOUVELLE DES AUTOMOBILES UNIC. Dec. 4, 1939, No. 31415. Convention date, Dec. 9, 1938. [Class 79 (i)] [Also in Group XXV] A hinge for chains, endless tracks &c. comprises a spindle 5 rotatably secured to one set 4 of links or the like and rotating in a sleeve 2 secured to the other set of links 1, a bearing such as a bush 6 taking all the radial loads of the hinge, and two rubber rings 3b secured to the ends of the sleeve to protect the bearing, which may be self-lubricating or lubricated in any suitable manner. In the construction shown in Figs. 1, 3 and 4 the spindle 5 is grooved as shown, these grooves engaging similar grooves in the links 4 and the bush 6 so that these parts are locked together against rotation. Each link 1 has a central boss within which the sleeve 2 is secured, the sleeve 2 having a bearing on the bush 6. The ends of the bush sleeve 2 are sealed by rubber rings 3b secured in place under slight compression by metal rings 3a, 3c, the latter being grooved to fit on the spindle 5. The Specification as open to inspection under Sect. 91 comprises also a modification, Fig. 5, (Cancelled) in which the bearing bush 6, sleeve 2, , and the rubber seals 3b are all enclosed by a sleeve 3 so that the whole hinge fitting can be inserted in the link 1 as a unit, the sleeve 8 being a force fit in the link. Roller bearings may be used instead of the plain bearing 6. The bearing may be sealed by rubber rings forcibly inserted between the spindle 5 and the bore of the link 1. This subject-matter does not appear in the Specification as accepted...
Patent GB-1184374-A (GB)
Title: Improvements in and relating to the machining of gear wheels
IPC: B23F21/28
Filed: 1967-07-07
Abstract: 1,184,374. Gear finishing cutters. CARL HURTH MASCHINEN-UND ZAHNRADFABRIK. 7 July, 1967 [25 July, 1966], No. 31455/67. Heading B3K. In a gear shaving cutter the total width across a tooth flank of the land portions 12, 12a, (Fig. 1) or 18, (Fig. 4) varies discontinuously from root to tip of the tooth. This may be achieved by forming alternate land portions 12 (Fig. 1) of less height than the other land portions 12a or as shown in Fig. 4. In other embodiments (Figs. 2, 3, not shown) the tooth is recessed either at the tip or root so that the outer land portions are of reduced effective height.