baber/WOPTO huggingface dataset:
Patent GB-491968-A (GB)
Title: Improvements in or relating to two-part hinged lasts
IPC: A43D3/02
Filed: 1937-03-13
Abstract: 491,968. Lasts. MOBBS & LEWIS, Ltd., and BUTLIN, H. E. B. March 13, 1937, No. 7447. [Class 17 (i)] Relates to two-part hinged lasts of the kind wherein the parts are relatively movable on a hinge and connected by a link pivoted at its opposite ends in the respective parts of the last, and consists in providing unyielding pivots and unyielding hinge, the necessary yield to enable the last to be shortened and extended being provided by a connecting link of curved or arcuate form. The link 4 may be a steel bar of <3>/16" thickness and <1>/4" depth, flat sided and rounded at top and bottom. The hinge may comprise a dowel pin 12 of wood or metal or a transverse knuckle.
Patent GB-971846-A (GB)
Title: Yarn holding device
IPC: D04B35/00
Filed: 1963-02-25
Abstract: 971,846. Knitting-machines. MONSANTO CO. Feb. 25, 1963 [March 9, 1962], No. 7490/63. Heading D1C. A yarn clamping device for a knitting machine comprises a fixed support 35 having a foot portion 47 and against which a leaf spring 36 is urged by a further leaf spring 39. The yarn is clamped by a member 34 passing and pressing the yarn between the foot portion 47 and spring 36.
Patent GB-854721-A (GB)
Title: Protective helmet linings
IPC: A42B3/14
Filed: 1959-03-04
Abstract: 854,721. Helmets. MINE SAFETY APPLIANCES CO. March 4, 1959 [June 24, 1958], No. 7495/59. Class 63 in a helmet comprising a shell 1 in which there is a suspension that includes a head cradle 2 formed from straps 4, 5 the lower ends of which are connected to a lower part of the helmet shell, adjustable head-engaging means 8, 9, Fig. 2, are carried by the cradle 2 in a position to space the wearer's head from the top of the helmet shell a distance greater than provided by the helmet straps, a headband 3 being carried by the cradle 2 at the lower ends of the straps 4, 5 and means being provided for connecting the headband 3 to the cradle selectively at different levels therein. The headband 3 is provided with fasteners 12 which engage in one of several vertically spaced slots 11 formed in supporting members 6 which are riveted to the ends of the straps 4, 5. As shown in Fig. 2 the adjustable head engaging means consist of flexible loops 8 drawn together the required amount by a lace 9. Alternatively, the adjustment may be made by means of a disc 16, Fig. 3, provided with several sets of circumferentially spaced slots. In other modifications adjustable flexible loops are attached to the cradle straps 4, 5. The lace-like element that connects the inner ends of the loops may be formed from two threaded flexible cables adjustably connected by sleeves. In the modification shown in Fig. 7 adjusting strips 36 are secured to the straps 37. The strips 36 cross at their centre and extend up through narrow slots 38 in an adjusting member 39. As shown in Fig. 10 two discs 42, 45 and one slot 43 are used. Teeth 46 are formed on the lower disc to increase the friction with the adjusting strip 44. In a further double disc adjusting means shown in Fig. 12, the upper disc 52 is rotated relative to the lower one 53 and two adjusting strips 54 are used.
Patent GB-1119633-A (GB)
Title: Olefin polymerisation and copolymerisation process
IPC: C08F291/00
Filed: 1967-02-16
Abstract: A catalyst composition is obtained by activation by a metal or hydride or organometallic compound of a metal of Groups I to III of the Periodic Table of the reaction product (in the absence of moisture) between one or more transition metal compounds and a polymer of an ethylenically or acetylenically unsaturated compound, this polymer having carbon-carbon double bonds in its molecule or being capable of forming such bonds under the conditions of the reaction with the transition metal compound(s). The composition is used for the polymerization of olefins alone or in admixture with each other or with conjugated or non-conjugated dienes.  In the examples, the polymers used in catalyst formation are polybutadiene, polyvinyl chloride, and polyacetylene, and they are reacted with TiCl4, VOCl3, CrO2Cl2 TiCl4 mixed with Ti(OC4H9)4 to give TiCl2(OC4H9)2 in situ, and TiCl4 mixed with VOCl3.  The resulting catalyst components are activated with Al(C2H5)3 or Al(i-C4H9)3 and used to homopolymerize ethylene or propylene, copolymerize ethylene and propylene, or copolymerize ethylene, propylene and dicyclopentadiene.  In Example 22, the polyacetylene used for catalyst formation is obtained by means of a titanium tetrabutylate/triethylaluminium catalyst.
Patent GB-416491-A (GB)
Title: Improved means for starting diesel engines
IPC: F01L13/00
Filed: 1933-03-13
Abstract: 416,491. Starting oil engines. KAMPER MOTORENFABRIK AKT.-GES., H., 46, Grossbeerenstrasse, Marienfelde, Berlin. March 13, 1933, No. 7525. Convention date, March 12, 1932. [Classes 7 (ii) and 7 (v).] A Diesel engine is started as a low-pressure engine by adding a space d to the normal clearance space by opening a valve g or by stopping the action of the air-admission valve w ; this is effected by rotation of a shaft i through the action of a cam m and an eccentric pivot for the rocker shaft o. When normal Diesel working is desired, return of the shaft i first closes the valve g and then gradually starts the operation of the admission valve w. This action is delayed, to evacuate petrol from the cylinder, by the action of a spring-pressed pin q on the handle of the shaft i, the pin engaging a slot in a fixed disc a from which it must be removed either by hand or by an inclined end of the slot ; alternatively a dashpot, or gearing, may be employed to delay the action. The petrol-air mixture is drawn from a carburetter through a pipe v and a suctionoperated valve.
Patent GB-622407-A (GB)
Title: Railway draft rigging
IPC: B61G9/10
Filed: 1947-03-19
Abstract: 622,407. Railway draught gear. MINER, Inc., W. H. March 19, 1947, No. 7611. Convention date, Sept. 11, 1946. [Class 103 (v)] In a railway draught gear, a friction casing C bears against a front stop B secured on the vehicle end sill 10 and contains a spring F which resists inward movement of a wedge block D and friction shoes E. A draw-bar A passes through the front stop B, casing C, and wedge D, and is in shouldered engagement with a follower G guided on bars H. Compression of the device is limited by the follower G engaging the inner end of the casing C as shown.
Patent GB-997689-A (GB)
Title: Process and apparatus for forming and wrapping cigars
IPC: A24C3/00
Filed: 1964-02-24
Abstract: 997,689. Cigar-making machines. S. J. SILBERMAN. Feb. 24, 1964 [Feb. 26, 1963], No. 7622/64. Heading A2C. In a cigar-making machine a tobacco feed device includes a longitudinally extending tube 10 (Fig. 2) into which tobacco is fed to be carried along by a plurality of endless bands 21, 20 and 19 which have helical runs 21a, 20a and 19a (Fig. 3) disposed within and extending coaxially along the tube 10. A wrapper sheet W to which adhesive 48 is applied is fed helically into the tube 10 by the band 19 and is wrapped around the tobacco to form a continuous cigar rod 49. The endless bands are guided into and out of the tube 10 by slots 1A-3A and 1B-3B and the tobacco T is initially fed into the tube 10 by a screw device 14. The relative speeds of the screw 14 and bands 19, 20, 21 determine the degree of compactness of the tobacco. A fourth endless band having a helical run 56a (Fig. 11) may be added which runs through inlet and outlet slots 4A and 4B. In a further embodiment (Fig. 14) the tobacco is fed directly to a guide tube 65, in which two endless bands have helical runs corresponding to bands 19 and 20, by co-operating conveyers 17 and 18 slightly inclined towards each other and operating in a trough 66. The tobacco is guided into the tube opening by the conveyers 70 and 80 and by lips 69 on the side walls 68 of the trough.
Patent GB-649350-A (GB)
Title: Improvements in the automatic control of superheated steam temperature
Inventor: GROUT JOHN ARTHUR MUNFORD
IPC: F22G5/20
Filed: 1948-03-12
Abstract: 649,350. Automatic temperature control systems. KENT, Ltd., G. March 12, 1948, No. 7652. [Class 38 (iv)] [Also in Groups XIII and XXIX] In apparatus for automatically controlling the temperature of steam which is superheated in successive stages, wherein a proportion of steam from one stage 2 is subjected to a desuperheater 5 before rejoining the steam flowing to the next stage 6, the proportion of steam diverted for desuperheating is automatically varied to maintain the steam from the point 7 at a constant temperature. In response to a thermocouple 9 responsive to temperature of the steam at a point just after the desuperheater stage, a controller 12 actuates a fluid pressure device 13 to adjust valves 3, 4 in the desuperheater and desuperheater byepass in a sense to maintain the temperature at the point 9 constant. An overriding control is provided by a controller 17, operating a bellows 20 for adjusting the controller 12, in response to a further thermocouple 14 located after the next superheater stage 6, so that the temperature of the point 7 is maintained constant. Indication of the temperature are give by scale 10 and 15. Alternatively the controller 17 may effect a temperature control on the stage 6 independent of the controller 12 (Fig. 2, not shown), or may effect a control on the stage 6 together with the overriding control of the controller 12. Specification 433,149, [Group XIII], is referred to.
Patent GB-178670-A (GB)
Title: Improvements in and relating to bellows cameras
IPC: G03B17/04
Filed: 1921-03-10
Abstract: 178,670. Sark, E. J. March 10, 1921. Cameras, bellows for.-Consists in preventing the collapse of the bellows of a folding camera, for example as a result of wind pressure, by inserting therein from the rear a removable shield or protector. In the form described the shield B has thin wooden tapering sides 10, 11, 12, 13 flexibly jointed together, and lined inside with black cloth.
Patent GB-997977-A (GB)
Title: Process for removal of impurities from water
IPC: C02F1/52
Filed: 1964-02-24
Abstract: Dispersed solid materials in aqueous waste waters are agglomerated for easier filtering by adding a polyelectrolyte, a floc former and a filter aid in any order in which the filter aid is present for incipient floc formation.  The electrolytes exemplified are branch chain amines, quaternary ammonium or sulphonium salts. The floc formers exemplified are tri- and tetravalent metal salts and the filter aids exemplified are diatomaceous silica, perlite, or non-organic fibre.
Patent GB-679674-A (GB)
Title: Improvements in semi-conductor devices
IPC: H03F3/14
Filed: 1950-03-28
Abstract: 679,674. Semi-conductor amplifiers. RADIO CORPORATION OF AMERICA. March 28, 1950 [March 31, 1949], No. 7748/50. Class 40 (iv). [Also in Group XL (c)] A semi-conductor device comprises a semiconductor body having a large area electrode, and further electrodes each consisting of a thin wire and forming a line contact with the semiconductor, the further electrodes being close together and equally spaced. In Fig. 2, a block of semi-conductor 12, such as germanium, silicon, boron, tellurium or selenium, has a large area, low resistance electrode 13, and two electrodes 14 and 15 each in the form of a wire and making linear contact with the surface. Electrodes 14 and 15, which may be the emitter and collector electrodes of a transistor, are pressed against the semiconductor by an insulating block. The arrangement enables the collector to collect a larger proportion of the emitter current. Fig. 4 shows an assembly in which the semi-conductor 12 is secured to a brass stud 25 which is resiliently mounted in insulating support 28. Electrodes 14 and 15 are secured to a ceramic support 35 which also carries connecting wires 36 and 37. The face of support 35 may be grooved to position electrodes 14 and 15. Support 35 is slidably mounted, and is moved into contact with the semi-conductor by lead screw 40, adjustment being effected until the resistance between semi-conductor 12 and the wires 14 or 15 does not vary with increase of pressure. Fig. 6 shows an alternative arrangement, in which the semi-conductor 12 is soldered to a copper foil 55 which encloses a rubber pad 56. Electrodes 14 and 15 are stretched across a glass plate 50, and may be held in position by a coat of varnish. Fig. 11 shows a modified arrangement of the electrodes, in which one set of wires 95 which are connected together and may form the emitter electrode are interspaced with a second set of wires 96 which may form the collector electrode. In another arrangement, one wire forming the emitter electrode is spaced between two wires, each forming a collector electrode, a corresponding twin-amplifier circuit having two pairs of output terminals being described. In a further modification, a collector electrode is placed between two wires each acting as an emitter electrode, and the arrangement may be used to provide a mixer circuit, or an amplifier with a push-pull input and an unbalanced output.
Patent GB-285668-A (GB)
Title: Process and device for converting heavy hydrocarbons into light and stable hydrocarbons
IPC: C10G11/02
Filed: 1927-03-21
Abstract: 285,668. GrenÚ, P. March 21, 1927. Hydrocarbons, cracking; hydrogenation, destructive.-Heavy oils obtained by distilling coal &c. are cracked and hydrogenated by passing them preferably mixed with neutral gases through heated tubes A<1> - - A<4> containing superposed layers of (1) a non-metallic porous catalyst e.g. actuated carbon &c. (2) oxides of manganese or tin (3) a porous catalyst similar to the first layer (4) a hydrogenating catalyst e.g. nickel. The neutral gases e.g. blast furnace gases &c. containing oxides of carbon are supplied through pipes r<1> - - r4 to dilute the oil vapours to a " constant concentration " and thus oppose the formation of fixed gases. The hydrogen required for the hydrogenation is formed in situ (1) by decomposition of sulphuretted hydrogen formed from sulphur compounds contained in the cils (2) by reaction of the oxides of carbon of the neutral gases with water vapour. The tubes A<1> - - A<4> are arranged at the apices of a hexagon and are heated by an outer refractory casing c and a central cone N, all the joints, valves, &c. being placed outside the heating zone. The heavier products are separated at S, the remaining vapours passing through condensers E<1>, E<2> and scrubbers F. Regeneration of the materials in the tubes A<1> - - A<4> is obtained by admitting air through pipes g<1>, - - g<4>, h<1 >- - h<4>.
Patent GB-313644-A (GB)
Title: Improvements in or relating to electric lamps
IPC: F21V17/00
Filed: 1928-03-14
Abstract: 313,644. Simplex Conduits, Ltd., and McLoughlin, H. F. March 14, 1928. Reflector holders; securing reflectors to holders; mounting reflectors on rods or tubes.-In a factory, street, or like suspended electric lamp, in which a reflector a is provided with a tubular extension a<1> of the crown a<3> of which is formed with an aperture a<2> whereby the reflector may be passed upwardly over and inter-connected with a coupling spider c associated with a lamp holder b mounted on the lower end of a tubular wiring conduit, the reflector is locked in inter-connected relationship with the coupling spider by screwing down a locking device d mounted on a screwed. extension c<3> provided on the coupling spider and. extending through the crown a<3> of the reflector. In the form shown in Figs. 2 and 3, the crown a<3> is provided with a series of radially disposed gaps a<4> adapted to pass over correspondingly arranged projections c<2> provided on the outer periphery of the spider c and having upstanding studs c<1> adapted, on a partial rotation of the reflector, to engage in holes a<5> pierced in the crown a<8> between the gaps a<4>. The locking device preferably comprises a domed ring d provided on its under side with spaced lugs d<1>, the spaces between the lugs affording ventilation between the domed ring and the crown of the reflector. In the form shown in Fig. 10, the spider c and the aperture a<2> are both of oval shape so that, on a partial rotation of the reflector, gaps a<5> on the shorter axis of the aperture engage over upstanding ribs c<5> on the larger axis of the spider. According to the Provisional Specification the extension of the coupling spider may be associated with a hook or bracket for the passage of cables or wires to the lamp holder terminals.
Patent GB-184215-A (GB)
Title: Apparatus for the determination of the percentage of carbon in iron and steel
IPC: G01N27/80
Filed: 1921-03-11
Abstract: 184,215. Malmberg, C. J. G., and Holstr÷m, J. G. March 11, 1921. Magnetic measure - ments.- The percentage of carbon in a specimen of iron or steel is obtained by apparatus provided with means for subjecting the specimen to re. peated magnetizations and demagnetizations between two chosen values of magnetizing-force and for then measuring the difference of magnetic flux at these two values. In one arrangement for carrying out the invention, shown in Fig. 2, the specimen is inserted into a coil 2, and is of such a length and shape that it form a magnetic circuit with screens 5. 6 and core-piece 8. The magnetizing - coil 1 is wound around the core-piece and is in series with a rheostat 12. A second rhecstat 13 may be shunted across this circuit which is completed when a lever 14 operated by clock-work described below makes contact with the projection 19 carried by a blade spring 15. Instead of using a magnetizing-coil permanent magnets geared up to the clock-work for rotation may be employed. One such arrangement is shown in Fig. 4 wherein the screens 5, 6 project through the box 61 constructed of insulating-material. Soft-iron pieces 51, 52 are slidably mounted with a bolt 56 to increase or decrease as desired, air gaps between the rotating magnet and screens. A softiron plate 66 prevents any leakage of magnetizing-forces at the half-revolution periods. Instead of rotating the magnet as shown the shaft may be displaced through 90‹ so that the magnetizing- force fluctuates between a positive and a negative value. In a further arrangement a soft-iron armature is geared to the clock-work and rotates between extensions of the magnet which in this case is stationary, and the adjustable air gap consists of a spring plate depressed and elevated by a thumb-screw. In another modification both softiron pieces between the magnet and screens are mounted on a drum which is rotated by the clockwork, and the air gaps are adjusted by moving the magnet itself. The coil 2 may be placed on other parts of the magnet itself. The parts of the magnet circuit, which is, with all its constituent parts, enclosed in an iron box. Clock-work for automatically effecting the measurement has a shaft 18 upon which are mounted a pinion 16 and cams 25, 32. and it is started by pressing the button 44, which movement is transmitted through spring-retained levers, and allows a catch 36 to lift over a tooth 34 on the cam 32. Rotation of the pinion and cams then proceeds until the catch 36 is brought up against a tooth 33 on the cam 32. The button 44 is then again depressed and the galvanometer circuit is completed by the cam 25, forcing the lever 21 against a contact 28 carried by a blade spring 22. This operation takes place first after the final magnetization has taken place and when completed, the lever 21 drops behind the cam projection 26 and damps the galvanometer by short-circuiting it through a resistance 31.
Patent GB-567402-A (GB)
Title: An improved lighter for burners, cigars and the like
IPC: F23Q2/24
Filed: 1943-05-18
Abstract: 567,402. Boxes. JONES, T. C. LITLER-. May 18, 1943, No. 7899. [Class 18] [Also in Group XI] An oblong magazine 1 containing balls of a match-head or similar igniting composition is provided along one of its longitudinal edges with a square-sectioned tube 2 to house a striker comprising a tube 8 surrounding an axially sliding rod 11 carrying four resilient chuck arms 12 which when the rod 11 is pressed inwards lift a hinged flap 4 at the inner end of the tube 2. The edge 4a of the flap is cut away and a recess 7a is provided in a strip 7 secured to the end wall of the magazine for the reception of a single ball 5 which is embraced by the arms 12. When the rod 11 is withdrawn, a compression spring 14 arranged between a button 13 on the rod 11 and a tapered head 9 on the tube 8 causes the arms 12 to grip the ball. The head 9 during insertion and withdrawal snaps past a detent spring 10. A friction strip on which the balls can be ignited is preferably provided on a slide covering the hole through which the magazine is charged. The igniter balls may have a core of wood or paraffin wax. The Provisional Specification describes an alternative form of striker in which the chuck arms are pivoted to a block on the striker and are normally closed by a spring- pressed guide collar which may be withdrawn by a rod slidable in the block.
Patent GB-100643-A (GB)
Title: An Improved Portable Electric Battery.
Inventor: SANDRINI ALFREDO
IPC: H01M50/522
Filed: 1916-06-05
Abstract: 100,643. Sandrini, A. June 5, 1915, [Convention date]. Cases; connexions to carbons; arrangement.-In a battery, a number of cells are contained in a case of tin plate or other material which is filled with cement, such as formalin-gelatine, so as to cover the cells and hold them rigidly in position Each cell, as shown in Fig. 1, consists of a celluloid case containing a hollow cylindrical carbon element b having perforations and closed by a disk e of cork or other insulating-material. The cork e is perforated to receive a metal sleeve g through which a zinc rod g passes. The rod is provided with a split collar k' having a head for withdrawing the zinc when necessary. Surrounding the top of the carbon cylinder is a metal ring f to which is fixed a metal strip f<1>, for making connexion with the zinc of the adjacent cell. The electrolyte may consist of an acid solution of bichromate of soda and mercury.
Patent GB-544805-A (GB)
Title: Improvements in and relating to metallic expansion joints for connecting air and gas conduits and the like
IPC: F16L51/02
Filed: 1941-06-25
Abstract: 544,805. Jointing conduits. INTERNATIONAL COMBUSTION, Ltd., and LEES, W. P. June 25, 1941, No.' 7978. [Class 99 (i)] [Also in Group X] A metallic expansion joint for connecting air and gas conduits and the like comprises side members each composed of plates 1,2 secured at 3 to the corresponding sides of the conduits 5, 6, and welded or otherwise connected together in V form at 9 so as to allow a hinge-like movement, the plates being connected to one another at the corners by pyramidal plates 7a ... 7d, 8a ... 8d, also having hinge-like flexibility about the lines of connection. The apices A of the pyramidal corners are preferably offset towards the outer corners. Stiffening- bars may be secured at 9 in the angles between the portions 1, 2.
Patent GB-431885-A (GB)
Title: Improvements in or relating to lamp fittings and reflectors
IPC: F21V7/04
Filed: 1934-03-14
Abstract: 431,885. Street &c. lamps. ENGINEERING & LIGHTING EQUIPMENT CO., Ltd., and WELLS, G. J., Sphere Works, St. Albans, Hertfordshire. March 14, 1934, No. 8066. [Classes 75 (ii) and 75 (iv)] A street or other lamp with an elongated vertical light source L, e.g. a high-pressure gas mantle or an elctrical discharge lamp, has in the upper part two or more mirrors B pivoted vertically and horizontally, and two or more reflecting and/or diffusing plates M adjacent to .the lower part of the light source. Each plate M is carried in a frame N pivoted horizontally at P and vertically at O. The member F which supports the carriers C for the reflectors B may be made in two or more parts, as shown in Fig. 4, with arcuate slots to permit partial rotational movement about the rods G when the nuts S are slackened. Vertical adjustment of the light source L may be obtained by mounting its holder on a bracket K sliding on the rods G.