baber/WOPTO huggingface dataset:
Patent GB-711591-A (GB)
Title: Improvements in the manufacture of strands or threads of glass fibres or other similar thermoplastic mineral materials
IPC: D02G3/18
Filed: 1950-03-10
Abstract: 711,591. Process and apparatus for the manufacture of glass &c. threads. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Marcn 10, 1950 [March 10, 1949], No. 6080/50. Classes 120(1), 120(2), and 120(3) A process for the production of strands or threads from continuous fibres of glass or other thermoplastic material of the kind in which the material in a viscous state is contained in a crucible provided with spinning orifices and flows from the orifices in thin streams, comprises the steps of converting the streams into continuous fibres by attenuation by a means whose sole function is to exercise the traction necessary to produce the said attenuation, grouping the fibres into a strand or thread and thereafter introducing the strand or thread into a pneumatic ejector and afterwards into a spinning pot so as to effect spinning and winding, the peripheral speed of the pot being greater than the speed of the strand or thread as it leaves the said means, and the difference between these speeds ensuring twisting of the strand or thread after it leaves the said means, the value of the twist being governed by the speed difference. As shown the molten material issues from the spinnerettes 2 in a crucible 3 in the form of streams 1 which are grouped together and sized by the member 4 and are then subjected to a mechanical drawing action by drawing rollers 5 to form a strand of untwisted fibres. This strand passes into the pneumatic ejector 7 and is introduced by this ejector into a spinning pot 9. The axis of the spinning pot may be offset from the line of attenuation suitable means being provided to guide the thread into the offset spinning pot. By this means several spinning pots can be arranged around the axis of attenuation one pot being filled whilst the others are being unwound. The unwinding may be done by a further ejector guiding the thread from the spinning pot on to a bobbin or other receiving member.
Patent GB-1484539-A (GB)
Title: Pressure method and device
IPC: G01N30/18
Filed: 1975-02-13
Abstract: 1484539 High-pressure liquid chromatography UNIVERSITY OF EDINBURGH 11 Feb 1976 [13 Feb 1975] 6132/75 Heading B1H A method of passing an end of a cylindrical device from without to the pressure regime within a pressure-tight vessel having an outer sealing member with a bore, and a compressible inner sealing member aligned with said bore and sealed by compression comprises inserting said end of the device into the bore of said outer sealing member so that said device forms a substantially leak-tight seal in said bore, relieving the compression on said compressible inner sealing member, and passing the leading end of said device through said inner sealing member into said pressure regime. As applied to the introduction of a sample into a high-pressure liquid chromatograph column 9 the outer member 2 is fixed in a carrier 3 movable in a recess in the body 1 and sealed liquid-tight therein by sealing ring 6. Inner seal 4 may have a preformed bore or may be a septum which is pierced upon passage of the probe 7 therethrough; it may be compressed by carrier 3 under the influence of member 5 so that any bore is closed and it forms an effective seal. Member 5 may be reciprocated pneumatically or by springs or a screw mechanism to apply and release pressure as required.
Patent GB-412699-A (GB)
Title: Improvements in crushers for ore and the like
IPC: B02C2/04
Filed: 1933-02-28
Abstract: 412,699. Conical mills. COOK, J. F., 112, Stanley House, Commissioner Street, Johannesburg, South Africa. Feb. 28, 1933, No. 6158. [Class 59.] In a cone crusher in which the concave 6 and head 21 rotate about spaced axes 8, 22 respectively so that the crushing chamber between them is of unvarying eccentric annular form, the lower terminations of the crushing surfaces are on their conical formations to provide an uninterrupted and downwardly directed discharge gap. As shown the conical head 21 is revoluble on a shaft 16 the axis 22 of which is displaced relatively to the axis 8 of the surrounding concave 6. The head is supported on springs 23 in telescopic casings 24 which limit the upward movement of the head. The concave 6 is supported by a spider 12 having a bearing 13 surrounding the shaft 16, the upper part of the concave abutting a thrust bearing 10 fixed in an outer frame work 4. A rope drive 20 is provided on the concave 6 and the head may be positively driven. Material enters through the thrust bearing 10 and apex of the concave and is gripped in the space between the concave and head. The head then revolves with the concave and carries the material 8 round until it is crushed at the narrowest part 29 between the concave and head. Crushed material is discharged through the bottom of the mill. The crushing chamber is so curved in cross section as to be steeper at its upper end than at its lower end so that the material passes through the entrance of the mill by gravity and is finally discharged by centrifugal force.
Patent GB-1103544-A (GB)
Title: Improvements in or relating to lubricants
Filed: 1964-02-14
Abstract: A lubricant which inhibits the setting of cement comprises an oil or grease and 0.25 to 10% by weight of a sugar solution.  The sugar may be cane sugar, beet sugar, honey, fructose or dextrose dissolved in water, acetone, polyglycol or ethylene dichloride, kerosene or petrol in a concentration of at least 5%, preferably at least 80%.  The grease may be aluminium, calcium lithium or sodium stearate or a bentone gel grease.
Patent GB-491029-A (GB)
Title: Improvements in toasting, grilling and like devices for use with gas burners or the like
IPC: A47J37/06
Filed: 1937-03-04
Abstract: 491,029. Grilling and toasting apparatus. WILSON, W. A. March 4, 1937, No. 6401. [Class 28 (i)] [Also in Group XI] Grilling and toasting apparatus comprises a casing A having its bottom edges shaped to engage the bars B2 usually provided to support a pan or kettle over a burner B, and having parts A<1> upstanding from its end walls to locate a grid G for supporting toast. A grill plate C, which may be perforated and corrugated, is supported horizontally or at an angle, by ledges A<2>. The grid G is shaped to embrace the parts A<1>, and when desired, to be inserted in clips D to form a back rest for a grilling-grid H having hooks H<1> for attachment to the grid G and a handle H<2> for manipulation. The grid H may support the food on its upper face or it may be a reversible double grid, the food then being held between two faces. Drip ledges H<3>, H<4> direct grease into a removable trough T. The grid H may be supported at an inclination by means other than the grid G, e.g. by an extension of the back of the casing A, or by extensible arms provided with a cross piece to receive the hooks H<1>. The grid G may be hinged to the casing A. Combustion products escape through holes A<3>, A4.
Patent GB-1055294-A (GB)
Title: Improvements in costing apparatus
Inventor: SMITH CLIFFORD DOUGLAS
IPC: G07C1/10
Filed: 1964-02-17
Abstract: 1,055,294. Time and cost apparatus. BRECKNELL - REDCLIFFE ELECTRONICS Ltd. Feb. 5, 1965 [Feb. 17, 1964], No. 6505/64. Heading G4T. In a workman's timekeeping and labour-cost computing apparatus, cyclically operated switches 51 (Fig. 1, not shown) pulse wage counters 12 controlled by workmen's switches 42 and labour-cost counters 17 selectively connected by plugs and sockets 18, 19 to lines corresponding to the workers on each job. The switches 51 may be operated at different rates corresponding to different wage rates and the appropriate switch selected by plugs and sockets 43, 46. At commencement, a clock 22, 23 operates a bell 36 and a relay RL1/1 to close switch RL1A to a latching relay RL2/2 which closes a switch RL2A for driving motors 20 for the switch cams 51 and changes contacts of a switch RL2B to extinguish an " off " lamp 39 and energize an " on " lamp 41 and workers lamps 13, 14. After a period of grace, relay RL4/1 is operated to switch RL4A and operate a " late " lamp 25 and operate relays RL3/1. Thus, if a workman arrives late, lamp 13 is extinguished but lamp 14 remains energized, whereas if he arrives before operation of relays RL4/1 and RL3/1 both lamps 13 and 14 are extinguished. At the end of the day relay RL1/1 is again operated and releases relay RL2/2. To permit overtime, switch 37 may be adjusted to " manual " and a button 75 depressed. To check that all the workmen's keys are finally removed, a button 76 is depressed illuminating lamps 13, 14 except where the switches 42 are not turned off. To check correct operation of the apparatus a corrector 61 receives constant pulses throughout working hours and should thus record a constant figure at the end of the week. Apertured cards may be placed on the apparatus adjacent the job counters 17 to record the relevant costing information.
Patent GB-1261941-A (GB)
Title: Apparatus for sequentially dispensing stock material in elongated form from a cartridge unit for coils of such stock material
Inventor: FEDOR RICHARD M
IPC: B21C47/22
Filed: 1969-02-06
Abstract: 1,261,941. Unwinding. R. M. FEDOR, and J. W. ROSUL. 6 Feb., 1969 [13 Feb., 1968], No. 6509/69. Heading B3E. [Also in Division A4] A cartridge unit holding and dispensing coils of e.g. wire, metal, paper or plastics strip comprises a container formed by side walls 2 having wheels 27, 28 running on tracks 31, 32 with removable end walls 21, 22 and removable transverse partitions 11-18 received in slots in removable side bars 10, different bars being used to adjust the partitions for different widths of strip which may be programmed by their positioning in the cartridge. A motor 33 and screw 34 moves the cartridge via a nut to position a coil over a lifting and driving means 37 adjustably secured at 60 between the tracks comprising support rollers 40, 41 and coil rotating motor driven rollers 38, 39 raised by jacks 46, 47 to bring the rollers into contact with the coil for lifting it above the other coils as at 3, Fig. 2, to facilitate dispensing.
Patent GB-106280-A (GB)
Title: Improvements in and relating to U-shaped Superheater Elements.
Inventor: TEMMER ADOLF
IPC: B21C37/28
Filed: 1917-05-09
Abstract: 106,280. Temmer, A. April 26, 1916, [Convention date]. U-tube superheaters. - To form a U-shaped superheater tube and maintain the thickness of tube wall at the middle-portion of the bend and the full inside area of the tube, a tube filled with resin or the like is first bent to a U-shape having a considerable greater radius of curvature than the finished bend, and then the parallel legs of the U are brought towards one another in dies, which prevent the legs from moving laterally and at the same time reduce the radius of curvature of the bend to the required dimension. The bottom of the die A, in which the U-tube c is placed, and the face of the die B, which is pressed down upon the tube, are concave to correspond to the curvature of the tube walls. The ends a, b of the dies are curved to the radius of the bend of the finished U-tube.
Patent GB-207450-A (GB)
Title: Improvements in or relating to long distance telephony
IPC: H04B3/40
Filed: 1923-03-07
Abstract: 207,450. Kilburn, B. E. D., (Naamlooze Vennootschap de Nederlandsche Thermo-Telephoon Maatschappij). March 7, 1923. Induction, preventing.-Cross-communication in a system of long-distance telephony is reduced or neutralized by connecting artificial conductors similar to the lines in parallel with the lines and by providing a variable coupling of capacity, inductance or resistance between the artificial conductors. The Figure shows lines a, b and artificial conductors e, f, connected by transformers c, d. Condensers h, i are arranged to couple the artificial conductors between tappings g. A reversing switch h is provided so that the coupling may be in the correct sense.
Patent GB-272582-A (GB)
Title: Improvements in coloured materials suitable for use in the manufacture of hard tennis courts and the like
IPC: E01C13/06
Filed: 1926-03-10
Abstract: 272,582. Idris, W. H. W. March 10, 1926. Stone, colouring.-Aggregates such as sand, ground brick, slag, stone chips, pumice, shingle, &c. used in the manufacture of tennis courts and like surfaces are coloured by coating with an enamel comprising a colouring matter and a flux oi low melting point. For example, 6-10 parts of the aggregate are heated to 800‹ C. with 1 part of a mixture of 1 part of green chromium oxide, 2 parts of borax, and 2 parts of litharge.
Patent GB-635671-A (GB)
Title: Improvements in or relating to electric conductors
IPC: H01H11/04
Filed: 1948-03-04
Abstract: 635,671. Coating with metals. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 4, 1948, No. 6761. Convention date, March 27,.1947. [Class 82(ii)] [Also in Groups XXXVI and XXXVII] A low-voltage-drop contact surface 20 on a conductor 22 is prepared by depositing a thin, highly-adherent sintered layer of silver 18 by flame spraying in a reducing-gas atmosphere. The contact surface is pre-heated above 200‹C but below the melting point of silver in the reducing-gas atmosphere and the silver in the form of a powder finer than 20 mesh, and preferably mixed with metallic hydride, is sprayed through a nozzle 10. The nozzle has orifices to combine a combustible gas, e.g., acetylene, propane, hydrogen, with an oxidizing gas as at 12, and also to provide an inert gaseous envelope, e.g., of nitrogen, argon. for the combusted gases as at 14, the silver being projected through a central jet as at 16. Proportions of the silver/ metal hydride mixture may vary from 80 per cent to 98 per cent silver by weight and the hydride is preferably titanium hydride or zirconium hydride varying from 5 per cent to 10 per cent of the mixture; but tungsten hydride or barium hydride may also be used.
Patent GB-557585-A (GB)
Title: Improvements in and relating to electromagnets
IPC: H01F7/16
Filed: 1942-05-20
Abstract: 557,585. Electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd. May 20, 1942, No. 6870. Convention date, May 24, 1941. [Class 35] A plunger type electromagnet comprises a rectangular laminated core structure having an aperture in one side, a pair of polar projections extending outwardly from the core on opposite sides of the aperture, a movable magnetic member extending through the aperture and engaging the projections, a tension member having a central aperture shaped to embrace the polar projections, and means for connecting the tension member to the core structure. In the form shown in section in Fig. 2 and in expanded view in Fig. 3, the rectangular laminated yoke 10 is held between flanged plates 11, 12. The yoke has an internal pole face 16 and two external pole-pieces 18, 19 on either side of an aperture 15, through which projects a T-shaped armature 13. Pole-faces 17, 20, 25 engage yoke faces 16, 18, 19 respectively. The laminations of pole-pieces 18, 19 are reinforced by the tension member in the form of a tie plate 34, which does not link any resultant flux. A shading ring 28 passes into recesses 26, 27. To prevent sticking, the shank of armature 13 is split and a high reluctance shim 65 is inserted, the whole being held together by riveted non-magnetic strips 31, 32. These strips slide in guides 57, 58 and project beyond the yoke to provide a bolt 70 for a pushing load. For a pulling load, the bottom of the armature is divided into two arms 75 each with a riveted bolt-hole 78, 79 engaging facing plates 76, 77. The coil former 45 has an internal split metal sheath 44, and is held firmly by insulated springs 49, 50. An insulating block carries the coil terminals. For D.C. operation, a switch, Fig. 1 (not shown), is provided to reduce the current after operation to the value necessary to hold the armature. This switch is operated by a bar 102 as the armature rises.
Patent GB-1130868-A (GB)
Title: Alpha cyanoesters and their conversion to dicarboxylic derivatives
Inventor: HINKLEY DAVID FREDERICK
IPC: B24C1/10
Filed: 1966-10-19
Abstract: 1,130,868. α - Methyl - α - cyano - # - (alkoxyphenyl) - propionic acid esters and conversion to acids. MERCK & CO. Inc. 19 Oct. 1966 [22 Oct., 1965], No. 6920/68. Divided out of 1,130,867. Heading C2C. Novel compounds of formula wherein R is a C 1-5 alkyl radical and R<SP>1</SP> is a C 1-5 alkyl radical are prepared by reacting a C 1-5 alkoxylated benzyl halide and a C 1-5  alkyl ester of α-cyano propionic acid. The novel compounds are converted to diesters of formula where R<SP>11</SP> is C 1-5 alkyl identical to R<SP>1</SP> by action of a strong mineral acid and R<SP>11</SP>OH, and then to mono esters R<SP>11</SP>=H by partial hydrolysis with NaOH. 4 - Methoxybenzylchloride is prepared by action of HC1 and paraformaldehyde on methoxybenzene.
Patent GB-737937-A (GB)
Title: Improved spinning process
Inventor: JONES EVAN ISLWYN
IPC: D01F6/18
Filed: 1953-03-13
Abstract: Filaments and yarns of polyacrylonitrile, and copolymers of acrylonitrile with minor proportions of other vinyl compounds, but excluding grafted acrylonitrile polymers, are spun from solution in an ethylene carbonate/water mixture by extrusion into a coagulating bath which preferably contains water as a major constituent, at least some of the ethylene carbonate which accumulates in the bath being recovered by freezing, which causes the ethylene carbonate to separate out.  Preferably the ethylene carbonate/water mixture contains more than 60 per cent of the former.  Specifications 638,331 and 715,194 are referred to.
Patent GB-679605-A (GB)
Title: Improvements in or relating to the preparation of malononitriles
Filed: 1951-03-27
Abstract: Malononitriles are prepared by heating an aliphatic nitrile with a cyanogen halide at a temperature of at least 600 DEG  C.  The preferred temperature is in the range 600-700 DEG  C. and preferably excess nitrile is used.  Superatmospheric pressures may be used if required.  In the example acetonitrile is heated with cyanogen chloride to give malononitrile.  If desired, cyanogen bromide may be used instead of cyanogen chloride.
Patent GB-224149-A (GB)
Title: Improvements in boxes
IPC: B65D81/36
Filed: 1924-03-20
Abstract: 224,149. Hamilton, W. H. March 20, 1924. Ornamenting boxes; contents, viewing.-The lid of a cardboard, metal, &c. box is provided with a detachable ornamental portion 3 having a strut or tab 4 by which it is supported when detached from the remainder or rim 2 of the lid. A calendar may be secured by ribbon or adhesive to this removable portion and a second removable portion 11 which can be replaced so that the lid can perform its usual function when the ornamental portion 3 is removed may be provided. The element 11 may be provided with an aperture which can be covered by celluloid or other transparent material.
Patent GB-471760-A (GB)
Title: Improvements in gas checks for breech-loading firearms
IPC: F41A3/74
Filed: 1936-03-09
Abstract: 471,760. Breech-loading guns. HASEK, J. March 9. 1936, No. 7131. Convention date, March 8, 1935. Addition to 466,811. [Classes 9 (i) and 92 (ii)] The deformable bulged gas-check 2 described and claimed in the parent Specification is, according to the present invention, attached to a rigid backing disc 9 having a flat front against which the deformable disc 2 can flatten on firing, both discs being extracted after firing by the engagement of the usual extractor 11 with a rim 8 on the disc 9. In the form shown in Fig. 1, the periphery of the disc 2 engages the usual obturator seating 7 of the gun chamber and the disc 9 is arranged outside the barrel, the discs being connected centrally by a screw on the part 4 forming the housing for the primer or percussion cap 3. Fig. 2 shows a modification in which the discs are connected by a peripheral screw 17. On firing, the peripheral expansion of the disc 2 causes a break in the threaded connection, but the discs are then connected by interengaging projections and recesses 13, 19 so as to be extracted together,
Patent GB-195068-A (GB)
Title: Improvements in hydraulic transmission mechanism
IPC: F16D31/06
Filed: 1923-03-13
Abstract: 195,068. Servon, J. L., and Chateaurenard, J. C. M. J. de Croisoe³il. March 15, 1922, [Convention date]. Clutches and speed-varying mechanism.- Hydraulic power transmission mechanism comprises a disc on the driven shaft provided with an ellipitical groove 6, Fig. 5, and a disc on the driving shaft provided with a number of liquid containing casings 8, in each of which is a vane 11 pivotally mounted at 16 and carrying a lever 17 with a roller 18 thereon received in the groove 6. When the driving shaft rotates, valves 13 are closed by the action of centrifugal force on the weighted and spring-controlled valve arms 19, Fig. 6, and a drive is transmitted. The movement of the arms 19 may be limited by spring- controlled pins 38 co-operating with extensions 21 of the arms 19 and movable by means of bevelled rods 27, Fig. 7, carried by a slidable sleeve 25. In a modification, discs 1, 50, Fig. 9, on the driving and driven shafts are provided with casings 8 and associated parts, the rollers 18 of both sets engaging grooves 6 in an intermediate disc 51, Fig. 9. In this case, the valves associated with the disc 50 are partly closed at starting by the pins 38 acting on the valve arms.
Patent GB-638466-A (GB)
Title: Method and means for magnetic separation
IPC: B03C1/253
Filed: 1948-03-10
Abstract: 638,466. Magnetic separators. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 10, 1948, No. 7331. Convention date, March 12, 1947. [Class 72] In a method of separating magnetic from non-magnetic material by means of relative movement between the material and a magnetic field the magnetic field is composed of a stationary unidirectional fundamental field and a superposed field intersecting the fundamental field at large angles. As shown the material fed at A to a rotating drum 4 is initially attracted by simple magnets 5 and 6 and then by the composite poles 7 magnetized by direct current windings 8 and also having slots containing alternating current windings, the direct current lines of force (full lines) being cut at large angles by the alternating current lines of force (dotted lines). A shaking action is produced which causes entrained non-magnetic material to drop and the magnetic material is discharged at B. In a modification Fig. 3 (not shown) the poles of the fundamental field are of large pitch and the poles of the superposed field of small pitch, direct current being used for both fields. In a further modification, Fig. 6 (not shown) a polyphase current is used for the superposed field.
Patent GB-1503076-A (GB)
Title: Electric switch
IPC: H01H11/00
Filed: 1976-02-25
Abstract: 1503076 Mechanical switches AMP Inc 25 Feb 1976 [10 March 1975] 7333/76 Heading H1N An electric switch including a diode comprises an insulating housing consisting of a base 12 with a cover 14, resilient contact terminals 17, 18 moulded into the bases, and contact members 25, 26 stamped from a metal carrier strip (42, Fig. 3, not shown) and moulded into or bonded to an operating member 27 of insulating material, member 27 being pivotally mounted by trunnions 28 on partition walls 13, a diode 39 being press-fitted between contact 26 and a resilient arm of contact 25 and bonded in position by adhesive and/or encapsulated in potting material 41 the arrangement being such that the diode prevents reverse current flow between the terminals. A number of such switches are mounted side-by-side on a single base 12 with a common cover 14, the contact terminals of each switch extending through the base as posts 19, 20 which are soldered in sockets 21, 22 of a printed circuit board, In an alternative embodiment (Figs. 4 and 5, not shown) a slidable insulated operating member (68) is mounted in a housing comprising a channel-shaped base (52) with a lid (72), a spring (69) biasing the contact members into contact with terminal members (53, 54) moulded into the base.