baber/WOPTO huggingface dataset:
Patent GB-1285762-A (GB)
Title: Improvements in strain gauges
Inventor: MACLACHLAN DONALD FULTON ALEXA
IPC: G01L1/14
Filed: 1969-02-12
Abstract: 1285762 Strain gauges CENTRAL ELECTRICITY GENERATING BOARD 29 Jan 1970 [12 Feb 1969] 7606/69 Heading G1N A capacitive strain gauge transducer comprises two flexible lever arms 1, Fig.1 carrying spaced electrodes 3 in the centres and attached to spacers 4 which are fixed to a test surface by blocks 5. In one embodiment the electrodes 3 are made of alumina with a film of platinum and are brazed to raised central areas 2 of the arms 1, which are stainless steel strips. Other constructions are described. The gauge may be enclosed in a steel shield to reduce temperature gradients and stray capacitances.
Patent GB-611930-A (GB)
Title: Improvements in and relating to the condensation of zinc from its vapour in gaseous mixtures
IPC: C22B19/18
Filed: 1946-03-12
Abstract: 611,930. Distilling metals. NATIONAL SMELTING CO., Ltd., and ROBSON, S. March, 12, 1946, No. 7621. [Class 82(i)] In a process for the condensation of zinc from gases containing zinc vapour the gases are brought directly from the furnace (or after a preliminary surface condensation) into intimate contact with a mechanically produced shower of molten metal at a temperature below the dew point for zinc and scrubbed and stripped of a large proportion of their zinc content and then passed to a vertical stack situated centrally above the spray producing device so that the residual zinc vapour is precipitated as blue powder which falls into the shower of molten metal and is thereby absorbed, dissolved or entrained, as metal for future recovery. As shown, the gases containing zinc vapour pass into a chamber 1 containing a spray producing device 2 such as a rotating paddle wheel and most of the zinc in condensed by this metallic spray, which may be zinc or lead as described in Specification 572,961, the residual gas passing through a thin walled metallic stack 5 situated centrally above the paddle wheel 2 and wherein any zinc is precipitated as blue powder which falls through the spray into the liquid metal pool 3. The gases may first pass through a surface condenser as described in Specification 611,928 or there may be two or more spraying chambers as described in Specification 611,929. The spray producing device may be of the forms described in these two latter Specifications.
Patent GB-140114-A (GB)
Title: Improvements in the preparation of anhydrous metallic chlorides
IPC: C01G1/06
Filed: 1918-05-07
Abstract: The process of dehydrating magnesium chloride described in the parent Specification is applied to the dehydration of other chlorides which are decomposed by heat, such as cerium, chromium, and iron chlorides. The process described in the parent Specification may be modified both as regards magnesium chloride and as regards the other chlorides, by partly dehydrating the chlorides by heating preferably under vacuum, before the treatment with synthetic hydrochloric acid. The chlorine and hydrogen may be combined in a chamber separate from the dehydrating-chamber.
Patent GB-934516-A (GB)
Title: Temperature history indicator
IPC: H01M6/36
Filed: 1962-02-27
Abstract: 934,516. Thermometers. MINNEAPOLIS HONEYWELL REGULATOR CO. Feb. 27, 1962 [Feb. 27, 1961], No. 7706/62. Drawings to Specification. Class 97 (3). In an indicator as in Specification 903,967 for showing the temperature history of a frozen food package or other article, in which a porous medium impregnated with an electrolyte and an indicator substance, has a pair of spaced dissimilar metal electrodes, e.g. tin and copper in contact therewith to act as a galvanic cell when the temperature rises above a predetermined minimum, a complexing agent is added to the porous medium so that the metal ions generated by the less noble metal, e.g. tin ions, are bound up into a stable complex and are . unable to precipitate the hydroxyl or other ions which then give a clear indication of their migration in dependence on time and temperature. The complexing agent may be a tartrate or a citrate such as ethylenediaminetetraacetic acid.
Patent GB-1455503-A (GB)
Title: Indicators
IPC: G01R13/40
Filed: 1974-02-20
Abstract: 1455503 Illuminated indicators MARCONI CO Ltd 20 Feb 1974 [22 May 1973] 7751/74 Headings G5C and G4H An indicator providing a thermometer-type display has n sets of display elements (n # 2), each set being connected to one of n power supplies such that failure of any one of the power supplies affects only 1/n of the total number of display elements. In the ease of two indicators with two power supplies, supply PS1 is connected to lamps 1, 3, 5, 7, 9 of each indicator, while supply PS2 is connected to lamps 2, 4, 6, 8, 10; the odd lamps are one set, and the even lamps are the other. Gas discharge or other lamps may be used. The power supplies may feed their lamp sets through logic units controlled by an analogue/digital converter receiving signals from a sensor.
Patent GB-1299952-A (GB)
Title: Improvements in or relating to single-phase asynchronous motors provided with phase-shift rings
IPC: H02K17/10
Filed: 1970-02-18
Abstract: 1299952 Asynchronous motors CALOR 18 Feb 1970 [5 March 1969] 7859/70 Heading H2A The stator of a single phase shaded pole asynchronous motor comprises a yoke 2 to which are secured two opposed polepieces 3, 3<SP>1</SP> having extended pole horns 5, 5<SP>1</SP> whose ends confront one another, resilient split pins 6, e.g. of magnetic material, being interposed between the confronting ends. Each polepiece carries a main winding 9, 9<SP>1</SP> and two auxiliary windings 7a, 7b or 8a, 8b. The auxiliary windings are connected together in diametrically-opposed pairs, and a switch (I, Fig. 2, not shown) is provided for shorting one or other of the pairs to enable the motor to start in either direction. A centrifugal switch may be provided for opening the auxiliary coil circuit. The auxiliary windings each comprise enamelled wire wound on a tapering former 11 (Fig. 5, not shown) provided with a flap 12 which is folded over after winding to protect the wire.
Patent GB-412527-A (GB)
Title: Improvements in or relating to artificial legs
IPC: A61F2/60
Filed: 1934-03-13
Abstract: 412,527. Artificial legs. HANGER & CO., Ltd., J. E., and SMITH, T. BRYANT-, Roehampton House, Roehamp. ton Lane, London. March 13, 1934, No. 7910. [Class 81 (ii).] An artificial leg is attached to a pelvic band by a bearer c formed with a spindle e inserted into a tubular bearing b and surrounded by rollers f. A nut g screws on to the spindle and is locked by a cap h. Ball races j, k are provided at the ends of the spindle. The bearing b is provided on a metal plate a attached to the pelvic band.
Patent GB-1243311-A (GB)
Title: Hub
Inventor: BURRELL ALFRED A
IPC: F16D1/08
Filed: 1970-02-19
Abstract: 1,243,311. Mounting members on shafts. A. A. BURRELL. 19 Feb., 1970 [14 March, 1969], No. 7953/70. Heading F2U. A member, such as a gear pinion, sprocket or pulley sheave 3, is secured on a drive-shaft by a hub sleeve 1 the inner bore of which has one or more keyways 6, while the outer surface is formed with splines 7 interspersed with block teeth 8, each keyway being in radial register with a block tooth. The hub is pressed axially on to a correspondingly formed outer sleeve 2 to which the member 3 is secured by axial bolts 11. As shown in Fig. 9, member 3<SP>111</SP> is mounted on sleeve 1<SP>11</SP> by fine screw-threads 15 and is held between screwed collars 211, 2<SP>111</SP>. The hub sleeve 1 is made of metal, while the outer sleeve 2 may be of metal or plastics material.
Patent GB-104596-A (GB)
Title: An Improved Plastering Material for Walls, Partitions, Ceilings, Floors and the like.
Inventor: CURTIS CHARLES FROUDE
IPC: C04B28/04
Filed: 1916-06-06
Abstract: 104,596. Curtis, C. F. June 6, 1916. Compositions containing plaster, lime, whiting, chalk, and fibres.-A plastering-material consists of lime and plaster in the proportion of about three to one, sawdust equal in quantity to the lime and plaster, and one per cent. of a mixture composed of three parts of sand and one part of whitening or powdered chalk. For outside work and for flooring, Portland cement may be used instead of the lime and plaster. The material may be coloured and may be moulded into slabs or blocks.
Patent GB-704721-A (GB)
Title: Sledge device for use in collecting bales of straw, hay and the like
Inventor: KEEN ROBERT CHARLES
IPC: A01D85/00
Filed: 1952-03-28
Abstract: 704,721. Sledges for collecting bales of straw &c. W. & G. (CHALLOW), Ltd. Aug. 27, 1952 [March 28, 1952], No. 8009/52. Class 78 (4) [Also in Group XXXII] A sledge adapted to be towed behind a baler to receive bales of hay, straw or the like and to deposit a pile of the bales at convenient points comprises ground-engaging runners 2, a fixed platform 5 at the leading end, and a rear platform 7 mounted for tilting about an axis 11 near the rear ends of the runners but normally held in alignment with the fixed platform by a retaining device 13. As illustrated the device 13 comprises a bolt mounted in a transverse cross member 12 and guided by a bridge-piece 16. The bolt is biased by a spring 15 to retain the tilting platform 7 but has a projection 14 which may be engaged by the foot of an operator standing on the platform 5 to cause bales which he has piled on the platform 7 to be discharged on to the ground. The platform 5 comprises parallel planks secured to the two main runners 2 and to a central runner which does not extend rearwardly beyond the transverse member 12. The platform 7 comprises planks secured to three parallel members 10 tapered as illustrated and receiving the axle 11. which passes through the rear ends of the runners 2. The runners 2 are metal-bound and are provided at their forward ends with hooks 4 to receive chains by which they are towed behind the baler. Spikes 21 on the runners 2 project through holes 23 in the platform 7 to assist in retaining the bales.
Patent GB-139049-A (GB)
Title: Improvements in boot, floor and furniture polish
IPC: C09G1/08
Filed: 1919-03-31
Abstract: 139,049. Morton, A. March 31, 1919. Polishing-compositions.-A polish for boots, floors, furniture, &c. consists of yolk of egg, wax, turpentine, and charcoal, or a red or other colouring-matter.
Patent GB-929159-A (GB)
Title: Formwork fastening
IPC: E04G17/075
Filed: 1962-03-01
Abstract: 929,159. Rib or other fastenings. S. E. ANDERSSON. March 1, 1962, No. 8050/62. Class 44. A formwork fastening comprises a rectangular plate which is provided with a wedge-shaped longitudinal slot 4 having straight edges and a maximum width which is greater than that of a formwork stay 9, the plate being bent along the centre line of the slot 4 so that portions of the plate 1, 2 on each side of the slot form in crosssection an obtuse angle with one another, the edges of the slot in cross-section forming an acute angle with one another, the plate also being bent along a line parallel to the centre line of the slot 4 so that its three portions form in cross-section an isosceles triangle the portion 3 which forms the base of the triangle being pro. vided with a wedge-shaped slot 6 parallel to the slot 4 and one edge 7 of which extending inside the corresponding edge of the slot 4 is bent inwards towards the inside of the triangle so that when the formwork stay is fitted into the slot and the fastening is struck down over the stay it engages the stay. The edge 7 extends substantially to half the height of the triangle ; the other edge 8 of the slot 6 is also slightly bent inwardly.
Patent GB-310151-A (GB)
Title: Improvements relating to upholstered chairs, couches, settees, and the like
IPC: A47C7/22
Filed: 1928-02-23
Abstract: 310,151. Whittle, R., Whittle, J., Whittle, T., and Whittle, R., (trading as Whittle & Sons, R. H.). Feb. 23, 1928. Divided application. Seat bottoms. - A seat bottom comprising a sheet of fabric D attached to two rails A, A', supports a detachable cushion E in an upholstered chair. The rails are detachably or otherwise connected to the sides B of the chair frame in proximity to the front and back frame bars C. C<1>.
Patent GB-1388016-A (GB)
Title: Method and apparatus for determining the permeability  characteristics of a porous or fissured medium especially of  soils and of rocks
IPC: G01N33/24
Filed: 1972-02-22
Abstract: 1388016 Testing permeability of materials in situ AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 22 Feb 1972 [25 Feb 1971] 8071/72 Heading G1S The permeability measuring apparatus comprises tubes 6, 7, Fig. 2, arranged side by side within  superposed sleeves 8, 9, and at least three inflatable closures 10, 11, 12 adapted to close at three different places along the axis of a borehole T the annular space between the outer walls of the sleeves 8, 9 and the wall of the borehole. The tubes 6, 7 and the sleeves 8, 9 are perforated in particular places so that liquid may be supplied by the pipe 6 to the space 1 and the space 3 through its open end 14a, and the liquid may be supplied by pipe 7 only to the space 2. The liquid so pumped into the spaces 1-3 flows outwardly through the wall of the borehole at E 1 , E 2 , and E 3  and the various flow-rates are measured by flowmeters such as 17. Approximate readings of liquid pressures in the spaces can be obtained by detectors (not shown) lodged in these spaces or by means of auxiliary pipes (18), (19) Fig. 3 (not shown) connecting the spaces to the surface, and a pressure in cavity 2 is obtained which is different from the pressure in cavities 1 and 3. From these pressure and flowrates a determination of permeability at various depths may be obtained using a formula disclosed. In Fig. 1 the pressures are obtained from Piezometers 4 introduced into the soil adjacent the main borehole. In the embodiment of Fig. 4 the apparatus comprises a single pipe 20 perforated at 21 and 22 and open at its lower end so that all the cavities are filled with liquid at the same pressure and flowmeters 24, 25 are provided. A Piezo-metric cell 27 measures pressure in the cavity 2 or the pressure could be measured by an auxiliary tube.
Patent GB-385277-A (GB)
Title: Improvement in elastic exercisers
IPC: A61H7/00
Filed: 1931-03-17
Abstract: 385,277. Massage. G 0 RDON, L. D., 173, W. Madeson Street, Chicago, U.S.A. March 17, 1931, No. 8140. Convention date, March 17, 1930. Void [Published under Sect. 91 of the Acts.] [Class 81 (ii).] An exercising appliance comprising an elastic strip 10 provided with integral hand grips 12 has ribs 14 formed thereon by which the muscles of the hand are massaged.
Patent GB-1462623-A (GB)
Title: Vacuum moulding
IPC: B29C70/86
Filed: 1973-02-20
Abstract: 1462623 Vacuum casting CLEAREX PLASTICS Ltd 9 May 1976 [20 Feb 1973] 8208/73 Heading B5A A method of producing a vacuum moulded product, e.g. a part of a caravan, comprises placing a core 12 of foamed synthetic resin together with a mat 13 in a mould, closing the mould and thereafter applying suction at a port 14 and allowing a settable material into the mould via a port 15. The mat 13 can be formed from a continuous filament, woven or chopped glass fibres or woven textile or wire mesh. The settable material can be a polyester or epoxy resin. A tissue can be applied to the surface of the mat.
Patent GB-1262103-A (GB)
Title: Control arrangement
Inventor: VIERSMA TACO JAN
IPC: F15B13/02
Filed: 1969-02-14
Abstract: 1,262,103. Machine tool details. T. J. VIERSMA, and P. BLOK. 14 Feb., 1969 [19 Feb., 1968], No. 8226/69. Heading B3B. [Also in Division G3]  A control arrangement for a machine tool comprises a duct 24 which has a flow restriction 22 at one end and can be connected through this restriction to a source of liquid at constant pressure and which has an outlet aperture 21 at the other end, and a movable surface 25 arranged to close the outlet aperture 21 to a variable extent, the surface 25 being movable by a command device 18, and the pressure in the duct 24 serving as a control signal for a main control valve 12, 13, wherein the movable surface 25 is formed by the surface of a lead screw, and the aperture 21 is formed in a movable part 20 coupled to the main valve 12, 13. The space 7 on one side of the piston 3 of a servomotor is in communication with the liquid at constant pressure, whilst the other side 9 communicates, via aperture 30, with the duct 24. A restriction 10 ensures that the pressure in chamber 9 is at a constantly low level. On rotation of the lead screw 17, the pressure balance on the piston 3 is disturbed, for example, by closing aperture 21 to raise the pressure in duct 24. Thus diaphragm 13 tends to close the aperture 12 shutting off flow to the chamber 9 and the piston 3 moves to the right in a follow up action. To deviate any side thrust on the part 20, a plurality of outlet apertures 21 may be provided, distributed evenly and in a helix corresponding to the screwthread. In an alternative construction (Fig. 3, not shown) the pre-control arrangement supplies two control pressures, each derived from one flank of the lead screw, which vary in phase opposition. In this case the piston is stationary, the cylinder moving in a follow up action. Another arrangement (not illustrated) comprises arranging the lead screw 19 for axial movement instead of the part 20.
Patent GB-824209-A (GB)
Title: Heat exchange apparatus
IPC: F28F9/00
Filed: 1957-03-13
Abstract: 824,209. Heat exchangers. MARSTON EXCELSIOR Ltd., DE HAVILLAND PROPELLERS Ltd., BERGWERK, W., and GOODWIN, L. Feb. 28, 1958 [March 13, 1957], No. 8246/57. Class 64(3) In a heat exchanger matrix 1 in which the passages 7 of at least one of two passage systems extend between two header tanks 17, 19, a vapour outlet passage 27 extends outwardly from the central region of the matrix, and at least one cross passage 25 connects (e.g. by way of further passages 21, 23 as shown) that end of the vapour outlet passage 27 which is in the central region of the matrix with the two header tanks. In operation, in the position shown, air to be cooled is caused to flow through the other set of passages 5, and a water level is maintained in the passages 7 up to a static level less than halfway up the passages 21, 23 and 25. Any steam generated in cooling the air passes to header tank 19, and thence by way of passages 21 and/or 23 and 25 to the vapour outlet 27. The small amount of condensate which may form in the upper part of the matrix drains to the lower part by way of tubes 29. The matrix is particularly intended for use in aircraft, the arrangement being such that when water not in excess of a predetermined amount is present in the passages 7, any steam generated may escape by way of the passage 27 without spillage of water, irrespective of the position of the aircraft. In a modification (Fig. 3, not shown), each of the ends of the passages 21, 23 is provided with a vapour receiving chamber having openings at spaced points leading into the header tanks. The passages 5, 7 in the apparatus shown are defined by parallel spaced plates 3 and the air makes two passes in flowing through the matrix from an inlet header 11 to a return header 15 and thence to an outlet header 13. Secondary heating surface may be provided in the matrix passages.
Patent GB-126806-A (GB)
Title: Improvements in Electric Heating Stoves.
Inventor: COPE HERBERT AMBROSE
IPC: F24H7/02
Filed: 1918-05-17
Abstract: 126,806. Cope, H. A., (Soc. Anon. HÚcla). May 17, 1918. Electric stoves.-Resistance wires g of German silver &c. are located in passages formed in the tiles a of the stove. The passages are closed at their lower ends by plugs m and are filled with sand &c. which can be withdrawn by removing the plugs m. In a modification, shown in plan in Fig. 4, the resistances are located in glass &c. tubes o, which are filled with sand and situated between inner and outer tile walls q, p. The spaces between the tubes o are filled with bricks r. The passages containing the wires may be arranged at any angle in the walk of the stove.
Patent GB-526408-A (GB)
Title: Individual axle drive for a diesel locomotive
IPC: B61C9/10
Filed: 1939-03-15
Abstract: 526,408. Internal-combustion engine locomotives. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. March 15, 1939, No. 8319. Convention date, March 30, 1938. [Classes 79 (i), 79 (ii) and 79 (iii)] In a locomotive pro pelled by several trans versely-arranged Diese engines acting on individ ual axles through gearing and flexible couplings, the engines 2, 3 &c. are mount ed on an outside frame 1 and drive extended whee: axles 9 through externally disposed gears 4, 5, 6 and flexible couplings 7. The gears are enclosed ir casings 11 mounted on the frame, relative movement between the frame and axles being accommodated by the couplings 7. Ir the ' construction shown each engine drives twc axles and all the axles and engines are coupled together through the gear trains. Modifications are described in which each engine drives one or two axles at one or both ends, and when an engine drives one axle only it may be situated above that axle.
Patent GB-1151449-A (GB)
Title: Two-for-One Spindle
IPC: D01H1/10
Filed: 1967-02-22
Abstract: 1,151,449. Two-for-one spindles. PALITEXPROJECT-CO. G.m.b.H. 22 Feb., 1967 [2 March, 1966], No. 8327/67. Heading DID. Yarn is wound onto the spool 22 of a twofor-one twisting spindle by pressing the spool against the inside of a cylinder 8 that is magnetically rotated on the spindle 1 and' thus causing the spool to rotate about its own spindle 21. A stationary disc 13 has mounted on it a spring loaded pivoted lever 19 that supports the spindle 21 and a traversing mechanism 27 slidable on a member 29. The traversing mechanism 27 contains a magnet 28 that cooperates with a movable magnet 40 to traverse the mechanism and to maintain the disc stationary. The cylinder 8 contains a ring of magnets 15 that are acted on by a magnetic chain or by an asynchronous motor to rotate the cylinder. A yarn guide 37 is mounted on the traverse mechanism and is pivotal to allow the spool to be removed.
Patent GB-162160-A (GB)
Title: Improvements in method of and apparatus for controlling internal combustion engines
IPC: F02M1/00
Filed: 1920-03-20
Abstract: 162,160. Wilsey, I. H. March 20, 1920. Valves; regulating.-A proportion of the mixture from the carburettor, depending on the fall in pressure in the induction manifold or regulated by hand, is preheated and returned to the main portion of the charge. By this means, at all loads a certain proportion of the charge, including any liquid particles, is heated so that the liquid is vaporized, but the proportion which is preheated is a minimum at full load, and loss of maximum power through reduction in density of the charge is avoided. The carburettor 2 is connected by a pipe 9 to a separator 11 containing vertical partitions 13 and a horizontal partition 14, whereby liquid particles are trapped and passed with part of the mixture through a pipe 15 to a chamber A in the inlet manifold heated by exhaust passages 5, 6. The remainder of the charge passes from the separator 11 through pipes 12 to the ends of the induction manifold, which are not heated and are connected with the cylinders by pipes 17. Throttle valves 19, in the pipes 12, and a throttle 20 in the pipe 15, are interconnected so that the valves are full open when the valve 20 is closed. These valves may 'be actuated by a spring-pressed piston exposed at one end to the reduced pressure in the pipe 9, so that at full load, when owing to the opening of the throttle or the slowing of the engine the reduction of pressure in the pipe 9 is not great, the valves are in the position shown and the bulk of the mixture passes through the pipes 12 without preheating, whilst at light loads, owing to the high vacuum in the pipe 9, the valves 19 are closed and the valve 20 is opened so that the bulk of the charge is passed through the heating- chamber A. Reference has been directed by the Comptroller to Specification 143,213, [Class 7 (ii), Internalcombustion engines, Arrangement &c. of].