baber/WOPTO huggingface dataset:
Patent GB-148987-A (GB)
Title: Submarine sound transmitter
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,987. Signal Ges. May 3, 1918, [Convention date]. Subaqueous audible signals.-The exciting-device e of a transmitter acts on the diaphragm b through a reducing-lever a, which, instead of being pivoted, is constructed so as to be flexible at the point of bending c, but is otherwise rigid with respect to the frequency employed. The lever may be of single or double T cross-section, and tapered towards the high-amplitude end. The small-amplitude end may be attached to the casing g, Fig. 1, or to a heavy free mass m, Fig. 2, which remains stationary when the lever vibrates. The diaphragm may be tuned to the signal frequency, or if signalling is to be effected over a range of frequencies the natural frequency of the diaphragm is made considerably higher or lower. In the latter case the diaphragm may have a rigid central portion p, Fig. 3, oscillating like a piston, and a flexible rim, which may be stiffened by ribs i to determine its mode of vibration. The amplitude-transformation may take place in more than one stage, and mechanical or hydraulic methods of excitation may be employed.
Patent GB-483988-A (GB)
Title: Improvements in or relating to the finishing of the surfaces of articles of aluminium and its alloys
IPC: C25D11/18
Filed: 1936-07-28
Abstract: A non-reflecting finish is formed on surfaces of aluminium and aluminium alloys, e.g. articles such as fog lamps, photographic apparatus, and aircraft propellers, by eroding the surface to give it a matted finish, e.g. by sandblasting, subjecting it to anodic oxidation in a bath of dilute inorganic acid, e.g. sulphuric acid, substantially free from metallic salts until a thick coating is obtained, and then dyeing the coating black.  The Provisional Specification is not limited to anodic oxidation and states that the anoding may be effected by scratchbrushing and that the dyeing step is not essential but may be used to colour the coating maroon, black, or other suitable colour.  Specification 455,412 is referred to.
Patent GB-365112-A (GB)
Title: Compound winding for inductances
IPC: H02M7/06
Filed: 1930-07-10
Abstract: 365,112. Inductances ; converting. SOC. ANON. POUR L'EXPLOITATION DES PROC•D•S M. LEBLANC-VICKERS, 12, Rue Portalis, Paris. July 10, 1930, No. 20939. Convention date, Aug. 16, 1929. Void [Published under Sect. 91 of the Acts]. [Class 37.] An inductance for a rectifying and filtering unit comprises a core 3 having alternating-current windings 4, 5, and a continuous current winding 6 wound on a metallic spool 7, so that pulsating or alternating fluxes are prevented from effecting the continuous current supply through filters 10 .. 13. In a modification, continuous current is supplied on two circuits connected to separate rectifiers and filters.
Patent GB-614461-A (GB)
Title: Ink-distributing devices for printing machines for use in making films for colour photography
IPC: G03C7/10
Filed: 1946-07-12
Abstract: 614,461. Printing processes; inking- apparatus. DUFAY-CHROMEX, Ltd., and ALEXANDER, W. M. July 12. 1946, No. 20979. [Class 100(ii)] An ink-distributing roller for a rotary printing-machine for use in making films for colour photography, e.g. for printing parallel lines to form a grating pattern on a film passing in web form through the machine comprises a number of annular or sleeve sections 252-254 abutting one another to form a continuous roller and having helical grooves, preferably rectangular in section, the relative width of relief to recess in each section being selected to determine the ink supply by the roller in the zone of that section. The roller may have a relative axial reciprocation relative to contacting rollers and may itself be reciprocated. The sections may be a sliding fit on a shaft 251, or one section may be secured to the shaft and inter-engaging dogs provided on the end faces of the sections. Fig. 1 shows a machine for printing on a web 12 of cellulose ester by means of a cylinder 20 supplied with ink from a duct-roller 22 by a messenger roller 23, distributing-rollers 25 29 made of steel; gelatine rollers 26-28, 31, 32 and 37-40, and steel rollers 30 and 33 to 36. The rollers 25, 29, 35 and 36 are axially reciprocated. Rollers 14. 16 are tacky rollers for removing dust. Specification 322,454, [Class 98(ii)], is referred to.
Patent GB-401822-A (GB)
Title: Improvements in and relating to brakes of bicycles, motor bicycles or the like
IPC: B62L3/02
Filed: 1932-07-25
Abstract: 401,822. Cycle brake-levers. SWALES, E. W. and RUDGE-WHITWORTH, Ltd., Crow Lane, Coventry. July 25, 1932, No. 20994. [Class 136 (i).] In a cycle brake-lever assembly for use with a flexible cable, an attachment member (e.g. a nut) for securing the assembly to a handle-bar &c. is adapted also to form an abutment for locating a flexible cable. The assembly comprises a strap 2 and a clip member 3 engaging the handle-bar 1 and secured thereto by a bolt 4 and a nut 5, which is slotted for the passage of the inner wire 9 of the cable 7 and is recessed to receive the ferrule 8 of the outer sleeve of the cable. The strap 2 is formed from strip material folded upon itself to provide a double thickness and wrapped around wires 10 to form beaded edges, which are engaged with slots in the head of the bolt 4. The clip member 3 is provided with lugs 18 to which the lever 6 is pivoted at 35. The inner end of the lever 6 is slotted to receive the wire 9, and is provided with a transverse hole to receive laterally a disc 28 on the end of the wire, the wire being passed through an opening 33 on one side of the lever and then turned through 90‹ into the slot in the lever.
Patent GB-983898-A (GB)
Title: Improvements in or relating to rotary displacement pumps
Inventor: WOOD ROBERT SPURGEON
IPC: F04C2/14
Filed: 1960-06-15
Abstract: 983,898. Gear pumps. PLESSEY CO. Ltd. June 8, 1961 [June 15, 1960], No. 21086/60. Heading F1F. A gear pump is provided with an inlet port in an end wall so that the operating liquid flows axially into the pump. The radial distance of the outer edges of the inlet port from the axis of each rotor decreases in the direction of rotation so that the outer portions of the tooth gaps are separated from the inlet before the inner portions. The area of tooth exposed to the inlet is reduced by cutting away (as at 6) the trailing flanks of the teeth of the driving gear and the leading flanks 4 of the teeth of the driven gear, that is, those flanks not in sealing engagement. Backlash is prevented by leaving part of the flanks 12 uncut. Inlets may be formed in each end wall, both ends of the teeth being cut away.
Patent GB-399455-A (GB)
Title: Improvements in or relating to vehicle lamp glasses
IPC: F21V5/00
Filed: 1933-07-27
Abstract: 399,455. Vehicle lamps. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. July 27, 1933, No. 21092. Convention date, Aug. 1, 1932. [Class 75 (ii).] Lamp fronts.-A front glass c for motor-cycle and other vehicle lamps is provided near its margin with one or more reflecting extensions such as the totally-reflecting prisms d having reflecting surfaces e at about 45‹ to the forward beam of light so as to project lateral light beams for warning &c. purposes. The prisms d may be coloured and concave or convex or fluted on their outer surfaces. They may be cemented to or integral with the glass c, which may be fluted. In another form, the glass is formed with an annular bead of cross section similar to the prisms d and made solid only at the points corresponding to the prisms d or hollow throughout and provided with a reflecting coating at the required points. When two lamps are used there may be a single reflector only on each lamp.
Patent GB-684021-A (GB)
Title: Improvements in or relating to a method of treating an article to discover flaws, and a testing agent therefor
IPC: G01N21/91
Filed: 1946-07-15
Abstract: A testing agent for detecting surface cracks in castings &c (see Group XIX) comprises a water - insoluble, water-emulsifiable, flaw-penetrating oily testing liquid containing a non-fluorescent colouring material.  The oily constituent may be a mineral oil or a commercial penetrating oil, or kerosene.  To secure emulsifiability, an oil-soluble soap or other detergent or surface-tension reducing agent may be added.  Alternatively, the emulsifier need not be oil-soluble, but a mutual solvent, e.g. an alcohol, for both emulsifier and oil must then be added.  Examples of testing liquids given include (a) petroleum distillate 83 per cent, naphthenic acid soap 16.7 per cent, dye 0.3 per cent; (b) kerosene 77.6 per cent, octylaminoethanol soap of tetradecyl sulphuric acid 22 per cent, dye 0.4 per cent; (c) kerosene 53 per cent, sodium dodecyl benzenesulphonate 18 per cent, cyclohexanol (acting as the mutual solvent) 27 per cent, dye 2 per cent; (d) penetrating oil 67.3 per cent, ethylene glycol monobutyl ether 16 per cent, naphthenic acid soap 16 per cent, dye 0.7 per cent.
Patent GB-276973-A (GB)
Title: Apparatus for amusement or for use in playing games
IPC: A63B59/30
Filed: 1927-08-11
Abstract: 276,973. Kostboth, F. Sept. 6, 1926, [Convention date]. Projecting- appliances. - An amusement or game apparatus comprises a light cylindrical hollow body and an instrument adapted to throw the body into the air and having a rolling surface which imparts rotation to the hollow body, the friction of the circumference of the cylindrical body in the air enabling the socalled Magnus Effect to be utilized, and causing the cylindrical body to describe loops and curves in the air. The cylinder d, Fig. 9, has one or more guide ribs g engaging corresponding grooves in the throwing implement a which is provided with a handle b, Fig. 2, and with a projection c to return the cylinder prior to throwing. The running surface of the throwing implement may be faced with rubber or fabric. The cylinder is preferably completely closed but may be provided with an opening for the insertion of chocolates or other sweets.
Patent GB-470534-A (GB)
Title: Process for producing lubricating oils
IPC: C10G50/00
Filed: 1936-08-01
Abstract: Lubricating oils are produced from the conversion products of the hydrogenation of carbon monoxide boiling above 150 DEG  C. by p cracking the products at 450--550 DEG  C., and polymerizing the resulting hydrocarbons rich in unsaturated compounds with condensing agents, e.g. aluminium chloride.  The condensing agents may be used repeatedly to condense fresh charges of cracked products the condensing temperature being raised successively.  A gas consisting of one part carbon monoxide and two parts hydrogen is led over a cobalt catalyst at 180 DEG  C.  The resulting gases are cooled to condense liquid products and then passed over active carbon to absorb benzines.  The liquid hydrocarbons boiling over 150 DEG  C. are cracked at 493 DEG  C. under 8 atmos. pressure and the distillate obtained boiling up to 200 DEG  C. is treated with aluminium chloride in a stirred vessel at -20 DEG  C.  The reaction product is washed, bleached, and distilled in vacuo, 43 parts of lubricating oil being obtained.
Patent GB-594467-A (GB)
Title: Improvements in typewriting and like machines
IPC: B41J21/04
Filed: 1944-11-02
Abstract: 594,467. Typewriters. ROYAL TYPEWRITER CO., Inc. Nov. 2, 1944, No. 21507. Convention date, March 8. [Class 100 (iv)] Tabulating mechanism.-A tabulating mechanism for a typewriter comprises a stopbar 3, 4, and a number of tabular stops D mounted on the bar for movement from inoperative to operative position, a universal resetterbar 84 being provided for shifting all the stops which are in operative position to inoperative position. The stopbar consists of two bars 3, 4, mounted in end-plates fixed to the carriage B, grooves being formed at letter-space intervals in the adjacent faces of the bars to receive the tabular stops. Each stop D is formed with a pair of lugs 13, 14 embracing the top-bar 3 and another pair of lugs 15, 16, embracing the lower bar 4, and is held either in its operative position, Fig. 2, where it can engage a tabular finger 21 when.the latter is set, or in its inoperative position, Fig. 1, by a spring 17. To move a particular tabular stop to operative position, the carriage is positioned with the stop opposite a lever 44 which is then actuated against the action of a spring 45 by a key 23 through linkages 32, 33, 37a, 40 so as to engage the lug 16 and set the stop. By means of another key 50 acting through linkages 60, 61, 62, 66, 68 and 72, a spring-controlled lever 76 with a bearer-roller 79 thereon may be moved to return the stop to inoperative position. The universal resetter-bar 84 is sector-shaped and its curved surface bears against a concave groove 83 in the bar 4. It is pivoted at its ends on the plates carrying the bars 3, 4, and is cut away to form a lip 84a which engages all the lugs 16. A finger piece 95 has a projection 97 which engages a lug 90 on the bar 84, so that depression of the finger-piece causes the bar to pivot against the action of a sprng 92 and to move simultaneously all the displaced stops to inoperative position.
Patent GB-713736-A (GB)
Title: Improvements in or relating to kilns
IPC: F27B7/22
Filed: 1950-08-31
Abstract: 713,736. Rotary kilns. PARKER, L. D. Aug. 22, 1951 [Aug. 31, 1950], No. 21527/50. Class 51 (2) A kiln for burning raw materials comprises an inclined rotating body fed at or near one end and discharged at or near the other end and either fired by a burner at the upper end which directs hot gases downwards through the kiln or fired by solid fuel which is introduced through the body walls intermediate its ends. As shown in Fig. 1 the kiln body, comprising cylindrical portion 1 and frusto-conical portion 4, is inclined and is fed with raw material at its upper end from a hopper 6. Solid fuel is added to the charge through openings 12 such fuel being fed to the openings from a fuel container 15 by scoops 14 which rotate with the body. Combustion air is admitted to the kiln via adjustable air inlets 10, 13. The hot gases rising from the sintering charge are drawn from the kiln body through a conduit 5A. Helical baffles 20 control the rate of downward movement of the raw material from the hopper 6. In a second embodiment, Fig. 2, the kiln is fired by a burner 24 preheated air for combustion being supplied through a pipe 26 which connects with a cooler in which the hot material leaving the kiln through the discharge outlets 8 is cooled. Cold air for the partial cooling of the sintered charge is supplied through adjustable openings 23 and the hot gases are withdrawn through a conduit 21. The raw material may, in this embodiment, be pumped into the burning zone in the form of a slurry spray at or near the upper end of the body 1. The lower end 4 may be extended for the purpose of providing an integral cooler. In a modification of this embodiment the openings 23 are covered with a hood connected to a fan such that cold air is drawn through the conduit 21 and lower zone of the sintered material before leaving the kiln through the openings together with the hot kiln gases which are thereby diverted from the conduit 21. In a third embodiment, Fig. 3, the kiln body 1, 4 is furnished with an extension 27 provided with a number of feed openings 30 such that raw material is fed through the openings by a rotary feeder 29 which is disposed within a stationary annular chamber 28 surrounding the extension 27. In an alternative form of feeder, scoops rotating with the extension extend into the chamber 28 and direct the material through the openings 30. The chamber 28 is provided with adjustable air inlets and the gases leave the kiln through the conduit 21. The sintered material is discharged by spilling over the upper edge of the body. The raw material may be sprayed in the form of slurry from near or at one end of the kiln and instead of discharge by spilling the sintered material may leave the kiln through peripheral apertures located at the burner end of the body portion 1.
Patent GB-543178-A (GB)
Title: An improved alloy steel for casting cutting tools
IPC: C22C38/30
Filed: 1939-07-25
Abstract: 543,178. Alloys: heat treatment. AKOMFINA AKT.-GES FUR KOMMERZIELLE UND FINANZIELLE ANGELEGENHEITEN. July 25, 1939, No. 21574. Convention date, July 25, 1938. [Classes 72 and 82 (i)] An alloy steel for casting cutting tools contains 0.25-1.3 per cent. of carbon, 8-16 per cent. of chromium, 3-6 per cent. of tungsten, 0.25-2.5 per cent. of molybdenum, 0.25-6 per cent. of cobalt, and 0.215-3 per cent. of tantalum, with or without 0.1-1 per cent. of copper and small amounts of elements such as manganese, silicon, and vanadium. The tool may be hardened at about 900-1200‹C. Reference has been directed by the Comptroller to Specification 499,561.
Patent GB-154704-A (GB)
Title: Improvements relating to carrier bags
IPC: B65D33/12
Filed: 1919-09-02
Abstract: 154,704. Seargeant, P. H. Sept. 2, 1919. Bags.-The flap a of a carrier bag has two strengthening pieces b of paper &c. disposed transversely across the crease c, co-incident holes d for the carrying cord &c. e being punched through the front and rear folds. Instead of 'being outside the flap a, as shown, the pieces b may be inside, or may be both inside and out, and may further be so arranged that the holes pass through the lateral gussets of the bag.
Patent GB-831230-A (GB)
Title: Improvements in and relating to sheet-feeding apparatus
IPC: B65H3/06
Filed: 1957-07-08
Abstract: 831,230. Feeding sheets. ZEUTHEN & AAGAARD A. S. July 8, 1957 [July 9, 1956], No. 21618/57. Class 100(1) In apparatus for separating sheets from the top of a pile comprising an oscillating arm 8 carrying a feeding arm 12 on the lower end of which is a roll 13 or other friction-feed member, the arm 12 is connected to the arm 8 by two links 10, 11 whereby as the pile 7 is depleted, the angle of inclination that the longitudinal axis of the arm 12 makes with the top of the pile remains substantially constant at the beginning of a feed stroke. As shown, the sheets separated from the pile 7 are guided by a member 18 to an assembly of feed rollers 4-6, which feed the sheets to a rotary duplicator. The arm 8 is oscillated about a pivot 9, and the roll 13 is arranged to rotate only when it is swung backwardly over the; pile to starting position.
Patent GB-738806-A (GB)
Title: Improvements in or relating to conveying apparatus comprising an endless conveyor belt
IPC: B65G17/06
Filed: 1953-08-05
Abstract: 738,806. Endless conveyers. RAVESTEIN, J. Aug. 5, 1953 [Aug. 15, 1952], No. 21633/53. Class 78 (1). An endless-band conveyer adapted to be bent or curved in a horizontal plane comprises a bearing surface built up of strips 20, 21 supported by rods 11 which are secured to an endless driving chain 1 and provided with rollers 12, 13 engaging inner and outer guide rails 14, 15 and 16, 17 respectively, supported on beams 8 having trestle legs 9, 10. Each strip is formed with a circular aperture at one end and an elongated slot at the other to receive adjacent rods, each rod supporting some strips by engaging their apertures and others by engaging their slots, and the strips being spaced by metal pieces 22. The rails 14, 16 at one side and the rails 15, 17 at the other side of the chain 1 are staggered relatively to one another so that the rollers 12, 13 will always be supported as they move round a curve. The chain 1 is guided round curves between pulleys 2, 3.
Patent GB-875506-A (GB)
Title: Improvements in or relating to steering gear for motor vehicles
IPC: B62D3/08
Filed: 1958-07-07
Abstract: 875,506. Vehicle steering mechanisms. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. July 7, 1958 [July 6, 1957], No. 21760/58. Class 80 (1). In a vehicle steering mechanism a half-nut 13, preferably of the recirculating ball type, is moved axially on rotation of a worm 7 on the steering wheel shaft and engages by a conical projection 15 thereon with a prismatic guide 16 on an arm 4 of the steering shaft 3. A further projecting pin 21 of the nut carries a bush 23 engaging in an aperture 19 of the arm 4 and also engages in a groove 25 in the housing parallel to the worm axis. A spring 26 is inserted between the bush 23 and nut 13 to take up backlash in the worm and nut gearing and an adjustment screw 28 is also provided acting on the end of the steering arm shaft 3.
Patent GB-201052-A (GB)
Title: Improvements in or relating to suction cleaning apparatus
IPC: A47L5/34
Filed: 1922-08-10
Abstract: 201,052. Hoover Suction Sweeper Co., Ltd., (Hoover Suction Sweeper Co.). Aug. 10, 1922. Vacuum cleaning-apparatus.-In a vacuum cleaner in which the casing is formed with suction hood or nozzle and supported on wheels, a means for adjusting the height of the nozzle above the carpet or floor by adjustment of the wheels consists in a screw-threaded rod on the rear axle, which axle is connected to the casing by a pivoted link, the rod engaging a nut supported on a ring pivotally connected with another part of the casing. As shown, a rod 22 is secured at right angles to the rear axle 21 and is formed with a screwed portion 23 and an upper reduced portion. The axle 21 is carried by a link 20 pivoted to a bracket 17 on the under side of the casing. A nut 25 is screwed on the rod 22 and rests on a ring 35 supported on pivots from sida arms 29 of a bracket on the casing. A pin 47, passing through a hole in the ring and received in a horizontal groove in the nut, hplds the two in contact. They are held against accidental rotary displacement by spring-pressed balls in the nut engaging recesses in the face of the ring. A pin 43 in the upper part of the rod prevents undue longitudinal motion of the nut on the rod. An indicator is secured on the rod and a scale is formed on one of the bracket arms.
Patent GB-376040-A (GB)
Title: Improvements in or relating to the making of craped metal foil
IPC: B21D13/04
Filed: 1931-07-30
Abstract: 376,040. Craping foil. SPAHN, J., Tõgerwilen, Switzerland. July 30, 1931, No. 21787. [Class 83 (ii).] Aluminium, tin, or other metal foil is craped by pressing it between two surfaces of tensioned rubber, or other material capable of contraction and having somewhat rough surfaces, and then causing or allowing contraction. Bands 1 of rubber are carried by driven rollers 3, 4, 6, 7 and idlers 5, 8, 9, 10, the rollers 3, 6 being larger than 4, 7 but driven at the same'speed thus putting the part t of the bands under greater tension than the parts u. A strip of foil 11 passed between the bands is thus craped as well as being given any pattern existing on the faces of the bands.
Patent GB-479757-A (GB)
Title: Improvements in or relating to power transmission drums or pulleys
IPC: B65G39/07
Filed: 1936-08-07
Abstract: 479,757. Driving and conveyer drums. MARSON, B. J., and DONCASTER COLLIERIES ASSOCIATION (SALES), Ltd, Aug. 7, 1936, No. 21839. [Class 80 (i)] [Also in Group XXX] In a driving or conveyer belt-drum, strips 18 of rubber or other friction material, arranged longitudinally to the drum as shown, helically, or otherwise, have projections 19, which may be of varying heights, passing through holes in an outer cylindrical shell 13 formed in segments which are screwed down upon spacing pieces 14 bearing on an inner cylindrical shell 12 secured to spiders 11, so that the strips are clamped in position. Dowels 16 assist in ensuring simultaneous rotation of the shells. Holes 20 in both shells are arranged between the strips to permit escape of mud, slime, and moisture.
Patent GB-427242-A (GB)
Title: Improvements in or connected with baskets and the like
IPC: B65D25/22
Filed: 1934-07-26
Abstract: 427,242. Baskets etc.; stud-and-slot fastenings. McINTYRE, J., 53, Park Road, Brechin, Angus, Forfarshire. July 26, 1934, Nos. 21851 and 22755. [Classes 18 and 133] [See also Group XXV] A device for suspending a basket from a waist belt &c. D comprises a sheet metal member C formed at one end with a hook 2 to engage the belt, the other end being formed as a key adapted to be passed through the longitudinal part 8 of a slot F in the basket handle and thereafter manipulated so that the narrow portion 7 of the key lies in the transverse part 9 of the slot, the basket then being retained by the device in the position shown, with the longer sides substantially parallel to the body of the user.