baber/WOPTO huggingface dataset:
Patent GB-421680-A (GB)
Title: Improvements in sound records
IPC: G11B17/028
Filed: 1933-10-26
Abstract: 421,680. Gramophone records. WHYTE, S., Rostherne, Upper Bridge Road, Redhill, Surrey, and SPEED, A. J., Jedlea, Compton Place Road, Eastbourne. Oct. 26, 1933, No. 29773. [Class 40 (ii)] The central aperture 9 in a gramophone record is made of such a size as to fit snugly over a round turntable pin 1 of normal diameter, and is of regular polygonal form, having not less than eight and not more than fourteen sides. The object of the invention is to provide improved means for preventing slipping of the record when in use, the polygonal aperture being designed to co-operate more effectively with a spring blade 7 provided in known manner in a slot in the turntable spindle. The specified minimum limit in the number of sides in the polygon is necessary to avoid moulding difficulties, while the upper limit is chosen to ensure that a flat side of the polygon will be large enough for effective engagement with the spring blade. According to the Provisional Specification, the hole in the record may be mainly circular, with one or more flats or recesses at the periphery ; or it may be formed as a curved-sided figure, or like a ratchet wheel.
Patent GB-802525-A (GB)
Title: Improvements in or relating to gas-operated heaters
IPC: F23D14/18
Filed: 1955-10-19
Abstract: 802,525. Catalytic gas burners. BELLO, G. Oct. 19, 1955, No. 29794/55. Classes 75(1) and 75(3) In a gas heater comprise ing a space fed with gas and closed by a catalytic gas oxidizing mass having an electrical preheater 7, the latter is enclosed between two layers 3, 4 of the catalytic mass. The layers of catalytic material are contained between two wire gauges or perforated sheets 5, 6, the outer of which has reinforcing ribs. The preheater 7 is of zigzag form and is connected to terminals on the side of a box 1 forming the gas space; it may be in two or more sections fed with different voltages. The gas is fed to the box by a perforated sinusoidal or spiral tube 9 closed at its ends and fed centrally. A third perforated sheet 12 is located between the gas supply tube 9 and the catalytic material. In a further embodiment the catalytic mass is of part cylindrical form and the preheater comprises a series of parallel wires. The gas tube is sinusoidal and has its outlet apertures directed away from the catalytic material.
Patent GB-401100-A (GB)
Title: Recording thermometers and the like
IPC: G01K1/02
Filed: 1932-10-25
Abstract: <PICT:0401100/III/1> <PICT:0401100/III/2> Apparatus for recording the level of an electrically conducting liquid in a tube, e.g. the mercury in a thermometer, &c., comprises an exploring needle which moves up and down in the tube and on touching the surface of the liquid closes a circuit causing an electromagnet to arrest an iron plate moving with the needle at a position corresponding to the height of the liquid.  Thereupon a pen mounted on the plate may make a mark on a moving chart.  In the form shown in Fig. 1, a needle 2 in the stem of a thermometer 1 and a needle 3 which always contacts with mercury in a tube 4 are mounted on a soft iron plate 7 and moved up and down by a cord 8.  When the needle 2 is lowered into contact with the mercury in the thermometer 1 an electromagnet 5 grips the plate 7.  Suitable means then cause a pen 10 to make a mark on the chart 11 and open a switch 12 to free the plate 7 which is raised by cord 8 and in its topmost position recloses switch 12 preparatory to another cycle of operations.  Alternatively the plate 7 may be made to rotate with up and down movements of the needles 2, 3.  The needle 3 and tube 4 may be replaced by a flexible wire.  The apparatus may be modified to record the difference in the levels of liquid in two tubes.  As shown in Fig. 3, exploring needles 13, 14 and permanently contacting needle 29 are moved up and down by cord 38 in the thermometer tubes 16, 15 and a central tube respectively. An electromagnet 17 is attached to and reciprocated by the cord 38 and is energized when a needle 14 contacts with liquid in thermometer 15 through leads 30, 31, sliding contacts 32, 33, leads 34, 36, switch 20, lead 37 and needle 29, and is de-energized when needle 13 contacts with liquid in the thermometer 16 closing a circuit through electromagnets 24, 18, lead 36, switch 20, lead 37, and needle 29. The electromagnet 18 opens switch 20 and breaks both circuits.  The electromagnet 17, while energized, grips and carries with it through a distance proportional to the difference of liquid levels in the thermometers 15, 16, an armature 21.  The latter is provided with a pen 22 which is caused by electromagnet 24 to mark a chart at the end of the armature's movement, an abutment 26, which enables the electromagnet to return the armature to zero position after each movement by means of a co-acting projection 25, and an abutment 28 which closes the switch 20 preparatory to a fresh cycle of operations.  The apparatus may be used to record the indications of burettes.
Patent GB-491632-A (GB)
Title: Improvements in hammermills
IPC: B02C13/00
Filed: 1937-11-01
Abstract: 491,632. Impact pulverizers. PENNSYLVANIA CRUSHER CO. Nov. 1, 1937, No. 29833. Convention date, Nov. 2, 1936. [Class 59] In a hammer mill the direction of rotation of the hammer system is reversible and the inlet for the material, the breaker plates of the upper crushing stage, the screen parts and the hammer system are arranged symmetrically with respect to a vertical plane passing through the hammer shaft. As shown in Fig. 2, hammer heads 47 are pivoted on bars 45 threaded through discs 42 spaced apart by rings 43 which are fixed to a rotatable shaft 34. The hammers rotate within a cage formed by upper impact plates 11, 12 adjoining the feed inlet 48 and lower screen plates 13, 14 pivoted at 15, 16 and adjustable toward the hammers by eccentrics 27, 28. Crushed material passes through the grid bars 19 and coarse material slides over plates 23, 24 and is projected by the hammers against an impact block 32 pivoted at 33, the block being inclined as at 32a for clockwise rotation of the hammers or in the reverse direction for an anticlockwise' rotation. In Fig. 3, the grids 56, 57 are connected to a floating pivot 58 by arms 59, 60 and are connected at their upper ends to arms 61, 62 mounted on shafts 63, 64 operated by worm and wormwheel. The spaces between the grids and upper impact plates 72, 73 are closed by transverse bars 78, 79. The space 81 between the bottom of the grids is closed by a hinged flap 82 secured by a latch 88 and forms a tramp-iron recess. In a further modification the upper end of each grid is mounted on an eccentric and the bottom is supported by a link and lever arm, the trampiron space at the bottom of the grids being bridged by a pivoted plate.
Patent GB-1119094-A (GB)
Title: Sieve drum device for the treatment of materials
IPC: F26B13/16
Filed: 1966-07-04
Abstract: 1,119,094. Textile treating apparatus. VEPA A.G. 4 July, 1966 [26 July, 1965], No. 29881/66. Heading D1L. [Also in Division F4] Textile treatment apparatus particularly for steaming, drying and setting loose textile material, slivers or hanks of textile material comprises a closed housing 1 divided by a partition 2 into a fan chamber 4 and a treatment chamber 3, the chamber 3 being provided with a sieve drum 5 subjected to suction by means of a fan 10, the drum 5 having a diameter of 2 or more metres. The fan chamber may be further divided into several chambers each having tubular heating elements 12 provided therein, and each having an opening 15 for communication with the treatment chamber. The sieve drum 5 may be supported in bearings which are flanged to the housing 1 or to a cast-iron spider 9 in the partition 2. The sieve drum may be provided with a wire mesh covering and/or a cloth covering for better distribution of the treatment medium. The drum may further be constructed for at least two working widths side by side, and part only of the drum may be permeable to air. Means are provided, in this case, for transferring the material from one working width to the adjacent working width, such means preferably consisting of several rollers at least one of which is arranged obliquely to the drum axis. Means such as pins fitted to rings may be provided for tensicning the material. In a preferred embodiment, a conveyor belt (18) is provided for feeding material to and from the drum, which belt may be in contact with the drum or with the middle roller (20) of a set of three guiding rollers, Figs. 3 and 4 (not shown). The middle roller may be designed as a brush. The apparatus may also be used for treating tow passing in zig-zag folds over the drum. Sieve drums with smaller diameters may be connected in front of and/or behind the large sieve drum.
Patent GB-235091-A (GB)
Title: An improved hot air bath
IPC: A45D20/24
Filed: 1924-12-12
Abstract: 235,091. Trost, E. Dec. 12, 1924. Hot-air baths. - An electric fan 8 with motor 7 and heaters 9 is enclosed by a casing 2 fitted with a flexible hood 4. The apparatus is intended for treating the head and other parts of the body.
Patent GB-1513002-A (GB)
Title: Low-tin terne coating
IPC: C23C2/10
Filed: 1975-07-17
Abstract: 1513002 Terne coated strip or sheet steel ARMCO STEEL CORP 17 July 1975 [22 July 1974] 30052/75 Heading C7F Steel sheet or strip is hot dip coated with a terne alloy consisting of 2-less than 7% Sn and balance Pb and impurities and jet finished immediately on leaving the coating bath. Prior to hot dipping the sheet or strip is annealed, pickled in a solution of 8-15% H 2 SO 4  and 4-15% ferrous sulphate.
Patent GB-1101051-A (GB)
Title: Page-turning devices
IPC: B42D9/04
Filed: 1963-07-30
Abstract: 1,101,051. Leaf-turners. W. H. SIMS. 29 Oct., 1964 [30 July, 1963], No. 30102/63. Heading G5X. Upon rotating the page-turning device shown, the page separating blade 9, which projects a little below the transparent disc 3, enters between the topmost page 5 and the adjacent one 10 and lifts the top page by means of its stepped portion 9b and ramp portion 9a into the slot 8. Further rotation causes the trailing edges 8a and 8b of the slot to turn the page smartly over.
Patent GB-861554-A (GB)
Title: Improvements relating to electrical capacitors
IPC: C25D11/12
Filed: 1959-09-03
Abstract: A capacitor electrode is made of an alloy of aluminium and aluminium oxide, the oxide being present in the proportion of 4-18% and preferably 6-8% by weght.  Pure aluminium powder, with a grain size of about two microns, is exposed to air to form a film of oxide on the surface of the particles and is then compacted at high temperature, whereupon the oxide film breaks and the aluminium flows to weld the particles together; thereby forming a dense, non-porous mass of aluminium in which fine particles of the oxide are dispersed. The compacted mass thus formed may be extruded into sheets or thin foils.
Patent GB-934654-A (GB)
Title: Electronic transistor-controlled device for measuring or control of temperatures
IPC: G01K3/00
Filed: 1960-09-01
Abstract: 934,654. Electric bridge measuring circuits. K. G. BERG. Sept. 1, 1960 [Sept. 4, 1959]' No. 30146/60. Class 37. [Also in Groups XXXV and XXXVIII] Apparatus for simultaneously sensing the temperature at a series of locations and indicating the value of the highest, comprises a multiple bridge circuit having common ratio arm resistors 20, 21 (Fig. 3) and a series of thermistors 22, 28 which, together with preset resistors 23, 29 form parallel bridges, each bridge having a PNP transistor 26, 30 in the unbalance diagonal with the emitters joined together so that the thermistor at the highest temperature, say 28, makes the base of transistor 30 more negative than the base of the other transistors, whereby only transistor 30 passes current through instrument G where it is indicated, or operates an alarm. Each preset resistor 23, 29 may be set to make its associated thermistor 22, 28 and transistor 26, 30 take over control at different temperatures. Transistor 31 compensates for variations in transistor characteristics due to changes in the common ambient temperature. By transposing each thermistor and its preset resistor, or by changing the transistor to an NPN type, the circuit is made to respond to the minimum temperature. The two circuits may be combined (Fig. 6) with a changeover switch 39 to enable the maximum or minimum temperature to be ascertained. In a circuit for determining the mean temperature of a number of locations by means of thermistors 40, 41, 42 (Fig. 7), each thermistor forms one arm of a series of parallel bridge branches, the total unbalance voltage producing the emitter current of a transistor 49, indicated on instrument G. The invention may be used for automatic control of the temperature of hot air fed through a conduit 60 (Fig. 8). The air is heated at 62 by hot water entering at 63 and passing through a valve 65, set by a motor 72, controlled by a regulator 70. Normally thermistor 69 and bridge resistors 75, 20, 21 ensure that the flow of hot water maintains a constant temperature at the outflow 68, but if the temperature in the water outlet 66, as sensed by thermistor 74, falls below a limiting value, control of transistor 77 and regulator 70 passes to thermistor 74. In another control arrangement (Fig. 9), the temperature in a room 80 is maintained constant by thermistor 81, but a further thermistor 82 prevents the temperature of the heated air from falling below a predetermined value.
Patent GB-1468845-A (GB)
Title: Friction clutches and release bearing therefor
IPC: F16D23/14
Filed: 1974-07-08
Abstract: 1468845 Friction clutches SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 8 July 1974 [7 July 1973] 30174/74 Heading F2C In an assembly of a clutch release bearing with a diaphragm spring the clutch release bearing is disposed within an annular housing 8 having a circumferential channel on its outer surface which receives the inner ends of the spring tongues 11, the release bearing being located in one axial direction by a portion of the housing 8 directed inwardly. As shown the bearing has sheet metal races 2, 3, the outer race being located in housing 8 with the interposition of a resilient plastics ring 9 and held axially by a circlip 15 which bears on a flange 16. The inner race 3 is mounted on a guide sleeve 4 and is pulled by a clutch release yoke 7 to disengage the clutch. The channel for the ends of tongues 11 is formed by a bent out portion 10 and a member 13. The release bearing can be removed from the housing 8 by removal of circlip 15. The housing may be formed by a moulded plastics member (Fig. 2, not shown), the resilient ring 9 need not be provided (Figs. 2 to 7, not shown), the outer race may be mounted on the guide sleeve (Figs. 5, 6 and 7, not shown), a second bent out portion may replace the ring 13 (Figs. 3, 4, 5 and 7, not shown) and alternative releasable means for connecting one race axially to housing are described. These alternative means include a split ring located in a channel of the housing (Fig. 3, not shown) a circlip which locates an annular member which in turn locates the race (Fig. 4, not shown), a ring having bent out spring portions engaging a flange of the housing, the ring also engaging a flange of a bearing race (Fig. 5, not shown) and a bearing race which has radially outwardly directed projections which are passed through slots of a flange of the housing, a circlip retaining the bearing in the housing after assembly (Figs. 6 and 7, not shown).
Patent GB-1490697-A (GB)
Title: Radial piston pump or motor with unrestricted inlet means
IPC: F04B1/04
Filed: 1976-07-20
Abstract: 1490697 Reciprocating pumps and motors CATERPILLAR TRACTOR CO 20 July 1976 [8 Dec 1975] 30204/76 Heading F1A In a pump or motor comprising a rotor 29 with hollow radial pistons 31 fixed thereto on which are reciprocable cylinders 33 slidably engaging a cylindrical surface 34 on an annular member 22, the rotor is mounted on a fixed pintle valve 23 formed with a single inlet chamber 25 communicating with an inlet 19 through an unrestricted passage 24 of constant cross-sectional area. The valve outlet chamber communicates with an outlet 21 via a plurality of passages and a manifold, Figs. 2 and 3 (not shown). Rotor 29 is splined to driveshaft 18. Member 22 is movable within housing 13 to adjust its eccentricity, and hence the piston stroke.
Patent GB-1384615-A (GB)
Title: Injection moulding machine
Inventor: REES H
IPC: B29C45/32
Filed: 1972-06-28
Abstract: 1384615 Injection mould HUSKY MFG & TOOL WORKS Ltd 28 June 1972 [12 July 1971] 30205/72 Heading B5A An injection mould comprises two halves interconnected by an articulated linkage which derives motion from the mould opening action to operate either a stripper plate 124 (Fig. 4), or 224 (Fig. 6), positioned between the mould halves or an external ejector plate 424 (Fig. 8), carrying an ejector pin 459 passing through one mould half. In Fig. 4, two sets of moulds for lids are formed by cores 122 in plates 120, 121, which are fixed and reciprocated by ram 113 respectively, and cavities 119 in mould plate 145, 146 sliding on tie bars 114. Plastics material is injected through passages in plate 145, 146. Guide pins and the cores 122 pass through stripper plates 124 which are pivotally connected by links 140 to levers 139 and bell cranks 134. The bell cranks are caused to rotate when the plates 120, 121 move apart by levers 128 pivoted  to the plate 145, 146, and a similar rotation is transmitted to arms 139 by shaft 137 to move the stripper plates away from plates 120, 121. In Figs. 1, 2 (not shown), a similar arrangement is applied to a single set of moulds formed by a pair of mould plates, the levers (28) being telescopic and urged into extension by an internal spring to provide lost motion whereby the stripping action occurs towards the end of the mould opening stroke. Material is injected in the direction of mould closing through one of the mould plates. In Fig. 8, an ejector plate 424 is operated by levers 428 (similar to levers 128), to eject spoons 460. In Fig. 6, levers 228 pivotally connected to platens 217 by links 240 have studs 253 which engage lugs 254 on stripper plates 224 towards the end of the mould opening stroke to force the stripper plates 224 away from the mould plate 245, 246 against the urging of springs 249.
Patent GB-1426186-A (GB)
Title: Process for the resolution of d,1 2- 6-methoxy-2-naphthyl- propionic acid
IPC: C07B57/00
Filed: 1973-06-26
Abstract: 1426186 Resolution of d-, l- 2 - (6 - methoxy - 2 - naphthyl) - propionic acid SYNTEX CORP 26 June 1973 [10 Aug 1972] 30268/73 Heading C2C A process for separating d-2-(6-methoxy-2- naphthyl) propionic acid from a mixture of d- and l-2-(6-methoxy-2-naphthyl) propionic acid comprises providing a heated two-phased system having water as an aqueous phase and a water-immiscible, inert non-polar organic solvent as an organic phase, a salt of d-2-(6-methoxy-2-naphthyl) propionic acid and a salt of l-2- (6-methoxy-2-naphthyl) propionic acid being in said two-phase system, and a salt of dehydroabietylamine which is soluble in said organic phase but is essentially insoluble in said aqueous phase; holding said two-phase system at a temperature from 40 to 100 C. Vo promote the formation of the dehydroabietylamine salt of l-2-(6-methoxy-2-naphthyl) propionic acid; crystallizing said dehydroabietylamine salt of l - 2 - (6 - methoxy - 2 - naphthyl) propionic acid; separating said crystallized salt from said two-phase system to thereby provide a mother liquor which is enriched in the water soluble salt of d-2-(6-methoxy-2-naphthyl) propionic acid; separating said aqueous phase from said organic phase; and salting out a salt of d-2-(6-methoxy-2-naphthyl) propionic acid by adding to said aqueous phase an inorganic salt which is more soluble in said aqueous phase than in said water-soluble salt of d-2-(6-methoxy-2-naphthyl) propionic acid and crystallizing the least water-soluble salt of d-2-(6-methoxy-2-naphthyl) propionic acid from said aqueous phase and optionally dissolving said crystalline salt of d - 2 - (6 - methoxy - 2 - naphthyl) propionic acid in a solvent, acidifying said solution with a mineral acid to yield d-2-(6-methoxy- 2-naphthyl) propionic acid, and crystallizing substantially pure d-2-(6-methoxy-2-naphthyl) propionic acid therefrom. Examples of the water-immiscible, inert organic solvents are toluene, benzene and xylene.
Patent GB-1176912-A (GB)
Title: Photoreactive Titanium Dioxide Material
IPC: G03C1/705
Filed: 1968-06-25
Abstract: 1,176,912. Photoreactive TiO2- NATIONAL LEAD CO. 25 June, 1968 [26 June, 1967], No. 30333/68. Addition to 1,168,136. Heading C1N. A photoreactive anatase TiO2 having an average particle size of 25-50 mÁ, a surface area of 35-55 m<2>/gm., a sulphur content of 0À15-0À4%, a spectral characteristic of at least + 4, and a loss in reflectance of at least 5 units in 10 mins., is prepared by forming hydrous TiO2, e.g. by hydrolysing a Ti sulphate-Fe sulphate solution, filtering, bleaching, e.g. with H2SO4 and Al metal, washing, optionally adding up to 0À3% P2O5 and/or up to 0À3% K2O, e.g. as H3PO4 and KOH, calcining at 725-760‹ C. to reduce the S content to 0À15-0À4%, and milling to reduce the particle size to 25-50 mÁ, e.g. in a steam mill at a steam: TiO2 ratio of 5:1.
Patent GB-948354-A (GB)
Title: Improvements relating to nickel steels
IPC: C22C38/08
Filed: 1960-09-02
Abstract: A nickel steel containing 18-30% Ni, at least 1% Ti with or without Al, the total amount of Ti and Al being 1.5-3%, not more than 2% Nb, from 0-0.1% B, 0-0.1% Zr, up to 0.1% C, 0-20% Co, 0-0.25% V, 0-1% Mn, 0-0.5% Si, and 0-0.1% Ca, the balance being Fe and impurities, is heat treated to produce a martensitic structure and then aged for 1/4 -24 hours at 260-650  DEG C. The steel is solution treated for at least 1/4 hour at 760-1175  DEG C. and for steels containing more than 24% Ni a preliminary ageing at 590-760  DEG C. for 1-24 hours is needed. Final ageing is then effected preferably at a maximum of 540 DEG C. The preferred composition contains less than 0.05% C and the Nb content is at least ten times the carbon content. The impurities such as S, P and N should not exceed 0.05% and the total of Cr and Mo should not exceed 2%. Specification 948,355 is referred to.
Patent GB-284429-A (GB)
Title: Improved means for retaining packets and other articles on the running boards of automobiles
IPC: B60R9/02
Filed: 1926-12-01
Abstract: 284,429. Sch÷ld, G. Dec. 1, 1926. No Patent granted (Sealing fee not paid). Receptacles, detachably securing to running- boards and other flat bases.-A device for securing luggage to the running-board, step, or similar support on a motor-vehicle comprises clamps 5 engaging the edge of the running-board and supporting hinged arms or frame members which are interconnected so as to be simultaneously moved from the inoperative to operative position, springs 6 coiled on pins 2 on the clamps being arranged normally to press the arms or frames to the downwardly folded or inoperative position and pressing the arms or frames against the luggage in the operative position. In the construction shown the folding parts comprise an inverted U-shaped member 1 connected at its ends to the pins 2, connecting arms 8 against which the springs 6 bear, and strengthening arms 9 connected to the inner ends of the pins 2.
Patent GB-248126-A (GB)
Title: Arrangement for removing the soot in steam boiler flues by means of a steam blast
IPC: F28G1/16
Filed: 1924-12-18
Abstract: 248,126. Jensen, O. J. Dec. 18, 1924. Cleaning, fluid-pressure processes for.-Boiler cleaners of the kind in which steam pipes e, Figs. 1, 2 and 4, are disposed longitudinally in the boiler flues a - - d, and have small branchings f from which steam is blown to impinge obliquely against the flue walls, have the orifices g in the form of narrow curved slits, so shaped and disposed that the jet is applied approximately tangentially, the shape of the surface of the jet being approximately the same as the shape of the surface to be cleaned at the surface of impact. The steam pipes e meet in a valve casing k containing a valve body o with a passage p which can be turned to communicate with any of the passages.