baber/WOPTO huggingface dataset:
Patent GB-683345-A (GB)
Title: Improvements in and relating to electric circuits
IPC: H02M1/04
Filed: 1950-11-29
Abstract: 683,345. Changing waveform. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 29, 1950 [Dec. 16, 1949], No. 29249/50. Class 38 (ii). For producing steep wavefront voltages for application to a unidirectionally conducting path such as that of the control grid 6 to cathode 4 of a discontinuous control type of discharge device 1, e.g. a thyratron, a half-wave rectifier 15 is serially connected with an inductance 14 across an A.C. supply, the inductance causing the rectifier to conduct until substantially the peak value of the cycle in which it would otherwise be non-conductive, the inverse voltage then appearing across it being applied through a condenser 16 to the said path to initiate firing of the device. The instant of firing is determined by a phase shifter 8 supplied through a transformer 9 from the main supply at 2, 2, to the load 3, the anode 5 and cathode 4 of the device. A resistor 17 shunts the rectifier and condenser to complete a discharge path for the latter through the phase shifter and inductance. In a modification, the unidirectionally conducting path comprises a rectifier similar to that 15 in the firing circuit.
Patent GB-533404-A (GB)
Title: Improvements in and relating to the manufacture of syrups
IPC: C13K1/06
Filed: 1939-11-03
Abstract: 533,404. Sugar syrup. STEIN, L., WALSH, J. F., NEEDLE, H. C., and AMERICAN MAIZEPRODUCTS CO. Nov. 3, 1939, No. 29333 [Class 127] A syrup having a malt-like flavour and useful in the baking, confectionery and brewing industries is formed by mixing steep water obtained in preparing starch from corn after treatment to separate heat-coagulable proteins, sulphur dioxide and excess acid, with syrup obtained by acid conversion of corn starch, concentrating the mixture in vacuo and heating it to 150 - 165 F. to darken it and develop a malt flavour. The steep liquor is neutralized with lime to pH 6.2 and filtered. It may be treated with potassium chlorate or hydrogen peroxide to oxidize sulphur dioxide. The mixture with starch-conversion liquor is adjusted before concentration by addition of lactic or phosphoric acid to pH5. Similar syrups may be prepared from aqueous extracts of wheat, rice, potatoes, &c. and from conversion products of other starches or syrup obtained from sugar cane. The syrups may be evaporated to dryness.
Patent GB-488908-A (GB)
Title: Improvements relating to stretchers
IPC: A61G1/013
Filed: 1937-10-27
Abstract: 488,908. Stretchers. WILLIAMS, D. L. H., LEATHER, G. B., and GENERAL AIRCRAFT, Ltd. Oct. 27, 1937, No. 29399. [Class 108 (i)] In a stretcher of the kind comprising longitudinal side rails 11 supporting a canvas &c. web 22 and transverse members 13 arranged to allow approach of the side rails to permit removal and replacement of the web, a transverse member is knuckle-jointed between its ends and incorporates means for supporting the web clear of the ground, the member being adapted to be removably attached to the side rails by means of a spigot carried at the extremities of the member. The web 22 of the stretcher shown in Figs. 1, 3, has tubular pockets 23 for receiving the side rails 11 which are spaced apart by collapsable transverse members 13 consisting of links 14, 15 carrying at their outer ends feet 17 secured to spigots 18 adapted to pass through bushes 19 carried by the rails 11 and to be secured therein by spring clips engaging oppositely-disposed grooves in the spigots and bushes. Tags 25 secured to tapes 26 on the web 22 engage in grooves 20 at the upper ends of the spigots 18 in order to stretch the canvas on the frame and assist in retaining the spigots in place. In another construction, Fig. 7, the ends of the rails are adapted to receive telescopically spigot handle portions 29 which carry feet 30 and are spaced apart by a two-part collapsable member 13 pivotally secured to the portions 29 which are prevented from sliding out of the rails by tags 25 on the canvas engaging spindles 31 on which the parts of the transverse member are pivoted. A bag or pocket &c. for receiving the framework of an oxygen tent or for carrying oxygen bottles may be provided on the frame.
Patent GB-334733-A (GB)
Title: Apparatus for apportioning or dividing plastic material in prescribed quantities
IPC: A21C5/00
Filed: 1929-09-28
Abstract: 334,733. Schilling, H. O. G., and P³hl, A. G. Oct. 18, 1928, [Convention date]. Hopper-and-plunger machines.-Apparatus for dividing plastic material, of the kind in which the material is extruded by a piston through an opening periodically closed by a slide, is provided with a hollow piston having a relatively-movable core the stroke of which is adjusted by a manually operated stop to regulate the quantity of material delivered. Fig. 1 shows the extrusion machine in which the material supplied by rollers a is delivered by the piston through the nozzle c' when the slide d is withdrawn by the cam mechanism f. The core n<2>, which can move relatively to the outer part m of the piston in the slotted portion m<1> of the piston rod, is driven normally by the arm o so that the piston functions as an entity and delivers a full charge through the nozzle. By setting the cam r, the arm can be withdrawn from the driving position at any predetermined point, thus allowing the core n<2> to recede under the pressure of the material for the whole or part of the remainder of the stroke. Suitable stops are provided to limit the movement and to restore the core on the return stroke, and by regulation of the stops and cam r the quantity delivered can be varied within fine limits.
Patent GB-917982-A (GB)
Title: Improvements in baking ovens
IPC: A21B1/48
Filed: 1960-08-26
Abstract: 917,982. Bakers' ovens. COLLINS & CO. Ltd., THOMAS, and COLLINS, A. T. Aug. 14, 1961 [Aug. 26, 1960], No. 29508/60. Class 51(2). A baking oven in which goods to be baked pass through the oven on a conveyer 2 has heaters 5 and a number of water troughs 6 extending across the baking chamber. The troughs are above the path of the goods and are supplied with water from a reservoir 10 via a pipeline 9, valves 8, and pipes 7. The reservoir 10 has means such as a ball valve (not shown) for controlling the level of water in the troughs and the valves 8 provide means for controlling or shutting off the supply of water to each trough. In operation the water troughs maintain the oven atmosphere at a humidity sufficient to prevent cracking of the surface of the baked goods but insufficient to cause the adherence of the paper surrounding the goods during baking.
Patent GB-358719-A (GB)
Title: Improvements in and relating to carrying ropes
IPC: E01D19/16
Filed: 1930-10-02
Abstract: 358,719. Ropes. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., Mulheim, Cologne, Germany. Oct. 2, 1930, No. 29559. Convention date, Oct. 23, 1929. [Class 109.] A wire rope for a suspension bridge &c. is hollow to contain a measuring wire. The wire is capable of sliding freely within the space in the rope, and the parts of the wire projecting from the ends of the rope are preferably provided with measuring scales. The wire may be rotated at high speed to insert it into the rope.
Patent GB-364175-A (GB)
Title: Improved sliver conveying apparatus
IPC: D01G27/00
Filed: 1930-10-04
Abstract: 364,175. Sliver-conveying apparatus for carding-engines &c. FRASER, G., FRASER, N., and FRASER, J., Westburn Foundry, Arbroath, Angus. Oct. 4, 1930, No. 29723. [Class 120 (i).] Sliver 21, Figs. 1 and 4, is conveyed from point to point in a carding-engine or other textile machine by a circulating conveyer band 1 having a stationary plate 3 thereabove, the plate having a smooth underface and being convex towards the band 1 the upper flight of which bears closely on the underface of the plate. The band 1 extends from the rear to the front of the carding-engine 2 and passes under the driving pulleys 4, 5, being driven by a roller 11, guided over rollers 10, 14 and tensioned by a weighted roller 15. The finished sliver 2<1> passes from rollers 6, 7 to the band 1 over a plate 8 angled at 9 and is delivered by rollers 12, 13 and formed into rolls at 16. The roller 10 and plate 8 are universally adjustable. The rollers 11, 12, 13 are driven through a shaft 20 from the delivery roller driving shaft.
Patent GB-1395881-A (GB)
Title: Printing fabrics
IPC: D06P3/14
Filed: 1971-06-24
Abstract: 1395881 Transfer printing PRECISION PROCESSES (TEXTILES) Ltd 31 July 1972 [24 June 1971] 29759/71 Heading D1B Fabrics are printed by a dry transfer process which comprises:-a) providing a fabric containing keratinous fibres and causing a compound of a polyvalent metal to become associated with the fibres, b) providing a support having printed thereon a dyestuff which sublimes at a temperature of not more than 220‹C and is capable of forming a complex with the said polyvalent metal, and c) effecting contact between the fabric and the printed support and heating the support so as to transfer the dyestuff to the fabric, whereby complex formation between the polyvalent metal and dyestuff is effected preferably the fabric is then treated with water or steam to effect complex formation. The metal is preferably aluminium, cobalt, copper, manganese nickel or zinc. The fabric may be wholly wool or wool blended with other fibres.
Patent GB-1518972-A (GB)
Title: Weighing machines
IPC: G01G19/36
Filed: 1976-10-07
Abstract: 1518972 Proportioning by weight R W CULLEY 7 Oct 1976 [16 July 1975] 29811/75 Heading G1W A machine for proportioning materials by weight prior to mixing thereof comprises a plurality of weighing units, each unit comprising a hopper 10 and a weighing container 4 movable between a filling position, a holding position and a discharge position, the container being carried by a counterbalanced member 1, overbalance of which under the weight of material in the container, releases the container for movement from the filling position to the holding position, the containers being releasable from the holding position only when all the containers are in the holding position. Each container 4 comprises a drum having four compartments 9, and rotatably mounted on lever 1 which is pivoted on a rod 12 and carries an adjustable counterweight 5. With the container empty, it is raised to an uppermost filling position shown in Fig. 1 by the counterweight. In this position its angular orientation is defined by a fixed bar 19 engaging two of the four studs 18 on the side of the drum, the orientation being such that the uppermost compartment 9 is asymmetrical with respect to the vertical so that material in the compartment tends to turn the container clockwise. Material flows from the hopper into the container until its weight is sufficient to pivot lever 1 into engagement with stop 13. This pivoting movement acts via a linkage 15 on a shutter 11 of hopper 10 to close the hopper outlet, and also disengages studs 18 from bar 19 so that the container rotates until one of four members 21 on the container engages a latch bar 22. In this position, shown in Fig. 2, one of four light tubes 25 coincides with the path of a light beam 28. The weighing units of the machine are aligned side by side, Fig. 4 (not shown), and when all the units have achieved the state shown in Fig. 2, light from source 26 passes through the light tubes 25 to a detector which acts via a solenoid to move the latch bar 22 which is common to all the units, out of the paths of members 21. The containers then simultaneously rotate to the discharge position and discharge into a common receptacle, Fig. 3 (not shown). When a container is empty, it is moved to the uppermost position, with the next compartment 9 in the filling position, by the action of counterweight 5. The shutters of the supply hoppers and the release of the drums from the holding position may be effected manually.
Patent GB-1304733-A (GB)
IPC: D06C7/02
Filed: 1970-06-19
Abstract: 1304733 Apparatus for destressing fabrics INSTITUT TEXTILE DE FRANCE 19 June 1970 [23 June 1969] 29826/70 Heading D1L In a device for destressing fabrics, the fabric 7 is folded by device 8 and 9, onto a belt 10 which runs on one or more intermediate supporting belts 1 as shown. Vibrations are induced in belts I, preferably by means of agitator bars 5 and transmitted via belt 10 to the fabric the length of the belts 1 being such that the frequency of the vibrations of the bar does not equal the natural frequency of the belt. Incorporated in the apparatus is means for impregnating fabric 7 with steam or hot air. As shown belts 1 and 10 are of open weave and steam or hot air are supplied from diffusers 6.
Patent GB-617885-A (GB)
Title: Improvements in electrolysis of fused baths
IPC: C25C7/00
Filed: 1945-11-08
Abstract: 617,885. Cooling liquids. McNITT, R. J. Nov. 8, 1945. No. 29839. [Class 64(iii)] [Also in Group XXXVI] A heat transfer system, e.g. for absorbing heat from a portion of the cathode stream in the electrolytic production of sodium in a bath of fused sodium chloride (Group XXXVI) to enhance the circulation of electrolyte, comprises tubular coils 21 and 22 placed at the desired place in the cathode stream and provided with staggered heat-conducting fins 45. The tubes forming coils 21, 22 pass out through the cell wall to heat exchangers 25, 28, Fig. 4, and are so connected that the heatabsorbing medium, e.g. liquid sodium, flows in opposite directions in coils 21, 22. Heat exchangers 25, 28 may be in the form of steam boilers each comprising a steel tube 35 cast into a metal jacket 37 having metal fins 36 and enclosed by housing 38. Water is admitted to the boiler by tube 41 from a reservoir (not shown) at the bottom of condenser 40. Risers 24, 27 and return tubes 26, 29 are each connected above the heat exchangers to expansion chambers 30 and each riser is provided with a valve 50 to control the flow of liquid sodium in the tube system. Pockets or catchalls 31 are provided at convenient points in the bottom of tubes 21, 22 to drain sedimentary substances from the coils.
Patent GB-791873-A (GB)
Title: Improvements in and relating to a method and a plant for vacuum-drying heat-sensitive materials
IPC: A23B7/024
Filed: 1956-10-01
Abstract: 791,873. Drying by freezing and subsequent sublimation. AKTIESELSKABET ATLAS. Oct. 1, 1956 [Nov. 3, 1955], No. 29889/56. Class 34(2) Apparatus for vacuum-drying heat sensitive materials comprises a chamber 1 containing a pile of movable hollow heating plates 2 through which hot water is circulated. Steam jet ejectors 5, 6 operated by live steam supplied through pipe 7 are connected to the chamber 1. The discharge end of ejector 6 is connected to a condensor 8 supplied with cooling water from pipe 9 and connected to a water jet ejector 11 supplied with water under pressure from a pump 12. In operation the material is placed, on trays between the plates 2 which are kept cool while the ejector 11 produces a partial vacuum of about 30 mm. Hg absolute in the chamber 1. The ejectors 5, 6 are then put into operation to obtain a pressure of about 3 mm. Hg absolute when the material freezes. Hot water is thus circulated through the plates 2 which are brought closer together and simultaneously one of the steam ejectors is put out of action so that the material is dried at a pressure of 5-30 mm. Hg. As the drying proceeds the temperature of the plates 2 is gradually reduced until the drying is almost completed when the circulation of the hot water is stopped, the plates are opened and the ejectors 5, 6 put into operation and the drying is completed by evaporation at a pressure of 3mm. Hg.
Patent GB-510837-A (GB)
Title: Improvements in conveyors
IPC: B65G19/16
Filed: 1938-10-17
Abstract: 510,837. Endless chain elevators. WHITE, A. F. Oct. 17, 1938, No. 30055. [Class 78 (i)] In a continuous flow elevator of the kind in which the flights 13 substantially fill the crosssection of the rising leg 1 of the casing, each flight is secured rigidly to a hanger 12 which is pivoted to a short arm 11 formed integral with a link of the chain 8. The flights are tilted by engagement with the teeth of a sprocket wheel 7 to discharge any material remaining on them. Specification 458,465 is referred to.
Patent GB-340616-A (GB)
Title: Improvements in or relating to wire-stitching or stapling machines
IPC: B25C5/02
Filed: 1929-10-04
Abstract: 340,616. Stapling-machines. BOSTON WIRE STITCHER CO., Devision Street, East Greenwich, Rhode Island, U.S.A.-(Assignees of Maynard, A. H.; Warwick, Rhode Island, U.S.A.) Oct. 4, 1929, No. 30168. Convention date, April 30. [Class 89 (iii).] A stapling-machine is provided with a clinching anvil which is rotatable and is formed with a plurality of alternative clinching faces disposed at an angle to one another, turning of the anvil bringing one or other of the faces into co-operation with the staple-inserting instrumentalities. As shown applied to a hand stapling tool of the kind described in Specification 206,932, [Class 89 (iii), Nailing &c.], the anvil 30 is rotatably mounted by means of a stem 31 in an aperture 32 in the baseplate 2 of the stapler. It is formed with two pairs of clinching recesses 36, 37 and 38, 39, and with arms or extensions 33 for its manipulation by hand. The anvil is held in the aperture 32 by an arched spring 35 which is apertured to pass over the anvil and engage on the arms 33. The anvil is held in either position of adjustment by projections 40 on it engaging in holes 41 or 42 in the baseplate 2. The clinching recesses 36, 37 are arranged to bend both staple legs inwardly, and the recesses 38, 39 to bend one leg inwardly and one outwardly. An additional pair of recesses, arranged to bend both legs outwardly, may be provided.
Patent GB-772534-A (GB)
Title: Improvements in or relating to titanium base alloys
IPC: C22C14/00
Filed: 1953-11-02
Abstract: Alpha titanium-base alloys have a composition, in percentages by weight, within the following range ..Sn 0.5 - 31.0 ..and/or Al-0.5 - 10.0 together with one or more of the following elements .V.up to.3.0 .Nb.up to.3.5 .Ta.up to.12.0 .Cu.up to.2.1 .Fe.up to.0.95 .Mo.up to.0.75 .Si.up to.0.9 .Mn.up to.0.5 .W.up to.1.0 the balance of the alloy, apart from impurities, being Ti Specifications 738,882 and 741,003 are referred to.
Patent GB-931519-A (GB)
Title: Improvements in or relating to locking mechanisms for egg laying boxes
IPC: A01K31/16
Filed: 1960-09-02
Abstract: 931,519. Nest boxes. M. F. H. FIDLER. Sept. 2, 1960, No. 30309/60. Class 5(2). [Also in Group XXV] A nest box 1 comprises a door 2 pivoted on pins 4 so as to be movable inwards or outwards, its movement being controlled by a latching mechanism which is so constructed that a second hen is prevented from entering the box when it is already occupied. The pivot pins 4 pass through blocks 3 fixed to the door 2, one of the blocks 3 mounting a resilient arm 6 which follows the contour of a metal, S-shaped cam member 7 as the door moves. Thus as the door 2 is swung outwards from the position shown in Fig. 1, the arm 6 will be urged past the off-set portion 10 of the member 7, and as the door is allowed to swing shut, the arm will re-engage with the other side of the cam member. The door is then free to be pushed inwards by a hen, the arm 6 co-operating in the same manner with the portion 9 of the cam member, and as the door closes behind the fowl to resume the position illustrated in Fig. 1, the arm passes behind a detent 11 which prevents the door from being opened inwards.
Patent GB-484676-A (GB)
Title: Improvements in or relating to electric battery lamps or torches
IPC: F21L4/00
Filed: 1936-11-06
Abstract: 484,676. Electric battery lamps. WISEMAN, S. Nov. 6, 1936, No. 30314. [Class 39 (ii)] The lamp bulb 15 is carried in a head or cap 13 which is rotatable relatively to the battery casing 10, thereby producing a longitudinal movement of the bulb which is effected, when in an inward direction, against the action of a spring 23 forming part of the lamp circuit, the lamp being switched on when a flange 19 on the base of the bulb carrier 17 is brought into contact with the end 20 of a metal strip 21 connected to the spring 23. In the example the head 13 is made of insulating material and is preferably transparent or translucent. A central recess 14 is provided in the head to receive a tubular bulb 15 with its tip or outer end located adjacent to a central aperture 16, so that the light is emitted in the form of a clear central beam surrounded by a corona of diffused light. The cap 13 is screwthreaded to engage screw-threads 12 in the upper end of the lamp casing, which is made of metal and closed at its bottom end. The bulb carrier 17 is provided with tongues 18 resiliently engaging the bulb and the recess 14 in the head. In a modification the central contact of the bulb and the central contact of the adjacent cell are normally held apart by a helical spring one end of which forms a socket engaging the bulb cap whilst the other end makes contact with either the metal casing of the adjacent cell or the outer metal casing which houses the cell. A helical spring provides connection between the bottom of the cell and the outer casing. Specification 458,327 is referred to.
Patent GB-204571-A (GB)
Title: Improvements in variable speed gears for motor-cycles and the like
IPC: B62M25/00
Filed: 1922-11-07
Abstract: 204,571. Jardine, Sir E., Watchorn, E., and Cohen, t. Nov. 7, 1922. Variable - speed gearing of the kind in which the changes are effected by moving a single dog clutch member as described in Specification 21109/14 is modified to provide three speeds. This member or sleeve P, Fig. 1, has internal dogs at one end constantly engaging splines on a driven sleeve C, and like dogs at the other end adapted to mesh with clutch dogs B<1>, E<2>, D<1> alternatively to effect the three speeds. The dogs B<1> are direct on driving-shaft A to which is secured a pinion F driving constantly a set of three gears M, L, K loose upon a fixed lay shaft O. The dogs E<2> are upon a sleeve E<1> to which is secured gear E driven from the gear L. The dogs D<1> are carried by a wheel D driven from the pinion K and supported on the sleeve E<1>. The member P is operated by a fork Q extending from a sleeve R sliding on the shaft O. Locking may be effected by an internal dog S acted on directly by a spring T, Fig. 1, and engaging notches O<1> in the shaft O. The dog S may have an inclined end Y, Fig. 2, engaged by a like end on a perpendicular spring-pressed rod V. Control is effected by way of a rock shaft W, which may alternatively carry the locking-means. A kick-starter may be combined as described in Specification 12295/15.
Patent GB-182734-A (GB)
Title: Improvements in bench drilling machines
IPC: B23B39/12
Filed: 1921-11-15
Abstract: 182,734. Schofield, A., and Schofield, F. Nov. 15, 1921. Drilling-machines. - In a hand-power bench drilling-machine the drilling-head is adjustably mounted on horizontal guide-rods carried in a slide which is itself vertically adjustable on guiderods A by means of hand-driven bevel-gearing F, D and a screw C. The vertical guide-rods are carried in a casting G which is angularly adjustable on the bed, the latter carrying a longitudinally adjustable work-table Y. Two speeds are provided for the drilling- spindle by means of an epicyclic gear mounted in the hand-driven flywheel.
Patent GB-358286-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/08
Filed: 1930-10-11
Abstract: 358,286. Wrenches. FOWLER, A. E., 2, Thyra Grove, North Finchley, London. Oct. 11, 1930, No. 30430. [Class 61 (iii).] A spanner for holding a nut or other movable portion of a body in a fixed position permitting both hands to be free for adjusting other portions of the body, such as engine tappets of motor vehicles, comprises a base piece a flanged to engage a fixed ledge, a centre piece b guided on rods d projecting from base a and adjustable by a nut f and screw e and a jaw c detachably fixed to the centre piece.