baber/WOPTO huggingface dataset:
Patent GB-793403-A (GB)
Title: Improvements in or relating to electric thermostatically controlled switches
Inventor: ESKIN SAMUEL GREGORY
IPC: H01H15/10
Filed: 1956-05-14
Abstract: 793,403. Thermal switches. DOLE VALVE CO. May 14, 1956, No. 14961/56. Class 38 (5). A thermostatic switch has a cam member which is moved axially by the thermal element to move a cam follower radially and operate a switch. As shown, a thermal element 54 has a piston 55 which moves upward on temperature rise and lifts rod 57 which has a cam member 61 mounted thereon. Upward movement of cam face 62 moves a ball 63 into a passage 64 to move a spacer 66 and an operating pin 65 of a microswitch 52. The temperature setting is adjusted by movement of a screwed rod 57 in the cam member 61 by a knob 51 which also has a cam face 74 acting on an operating button 73 of a microswitch 71. In Figs. 1 and 2 (not shown), the cam member 61 has three angularly and axially spaced cam faces to effect operation of three micro-switches at different temperatures. In Fig. 4 (not shown), two microswitches are operated by the temperature setting knob.
Patent GB-683234-A (GB)
Title: Locomotive draft appliance
IPC: F23L17/16
Filed: 1950-06-15
Abstract: 683,234. Blast apparatus for locomotives. GIESLINGEN, A. GIESL-. June 15, 1950 [June 21, 1949 ; June 21, 1949], No. 14987/50. Class 51 (i). A locomotive draft appliance is characterised by at least one smokestack of elongated crosssectional shape and at least one exhaust nozzle opening which discharges steam within an elongated circumscribed area the major dimension of which is substantially smaller than the corresponding major dimension of the outlet area of the said smokestack, the major dimension of said area measuring not more than 60 per cent of the major dimension of the smokestack outlet area. As shown in Fig. 1 an exhaust nozzle 7 is mounted on a standpipe 8 and is provided with several exhaust openings separated from each other by partitions 13, the transverse width of the nozzle 7 being greater at each end than in the centre. In a modification, Fig. 12, the central axis 21 of the smokestack 5 is inclined with respect to the central axis 19 of the incoming steam conduit (not shown) which is connected to the standpipe 8. In a further modification, Fig. 13, two smokestacks are provided, the longitudinal central planes of which are substantially in line with the direction of motion of the locomotive.
Patent GB-744630-A (GB)
Title: Improvements in and relating to servo-mechanical control systems
Inventor: SYKES WILLIAM HARRISON
IPC: G01S3/42
Filed: 1953-05-29
Abstract: 744,630. Electric correspondence control systems. ENGLISH ELECTRIC CO.. Ltd. May 28, 1954 [May 29, 1953], No. 15006/53. Class 40(1) [Also in Group XL(c)] A follow-up servo-system wherein the error voltage is derived from the sliders of two potentiometers is characterized in that this voltage is fed through an amplifier with a feedback circuit whose resistance is automatically changed at a predetermined level of error voltage so that the amplifier has a larger gain for a low error voltage, in order to reduce the zone of no-response due to static friction. As shown (Fig.. 2) where the movement of slide 4 of potentiometer 1 is to be followed by corresponding movement of slider 5 of potentiometer 2 the error voltage Ve is amplified at 6 to energize the field winding 7 of a generator 8 which feeds a servo motor 9 to drive the slider 5 until the error signal is reduced to zero. A feedback network comprising resistors 12-15 and rectifiers 16, 17 is connected between 'the output of generator 8 and the input of the amplifier 6, the network containing a source 18 of bias current, such that when the output voltage Vg from generator 8 is high and e.g. positive, the feedback path is through low resistance 15 and rectifier 17 to give a large feedback factor and restrict the overall gain of the system, but when the output voltage Vg is small the current through rectifier 17 ceases and the feedback path passes through the larger resistance 13 and the overall gain of the system is increased.
Patent GB-438606-A (GB)
Title: Method for the treatment of ready dressed and tanned pelts
IPC: C14C11/00
Filed: 1934-05-18
Abstract: The hairs of pelts are agglutinated and stuck down on to the skin by treatment with a solution prepared by adding to a solution of glue containing lactic acid, a second solution comprising sugar, glycerine, logwood extract, castor oil and water and chrome leather black dye.  After application of the solution, the adhering composition is rendered insoluble by treatment with a tanning substance, e g ammonium bichromate.  An alternative method of treatment is by applying an alkali resin soap and then ferrous sulphate to produce insoluble iron resin soap.
Patent GB-223270-A (GB)
Title: Improvements in mine signal recording apparatus
IPC: B66B19/06
Filed: 1923-06-08
Abstract: 223,270. August, J. R. C., and Hunter, E. K. June 8, 1923. Mine signalling systems; recording orders.-In a mine signalling apparatus, the signals are recorded by punching a record strip in one or more of a number of areas disposed laterally of the strip. The areas may have values in the geometrical progression 1, 2, 4, 8 &c., so that the signals may be recorded in code. The recording apparatus may be combined with a dial indicating apparatus or may be used alone as a receiver. As shown in Fig. 1 the record strip 1 has four areas 2 - - 5 5 corresponding to the values 1, 2, 4, 8 and by a suitable combination of punchings 6 in the areas, any one of fifteen different signals may be recorded in code. For example, the strip 1 indicates that the signal " three " (men) was sent at nine fifty-seven and the signal " four " (raise steadily) was sent at ten eighteen. The time of the signal may .be printed on the strip and the strip may be fed forward step-by-step by mechanism controlled automatically by the punchings. Alternatively, the strip is marked with time indications and is moved forward continuously. In the modified arrangement shown in Fig. 3, the areas 13 are reserved for signal indications and the areas 14 for indicating the origin of the signals. Instead of a code signal, the strip may be divided into areas, each of which corresponds to a particular signal. Fig. 4 show the recording apparatus combined with a step-by-step visual signalling apparatus wherein a pointer 16 is rotated around a dial 17. A contact finger 19, which rotates with the pointer 16, closes the circuit through one or more of the cores 21 which effect the punching of the strip 22 and simultaneously, the time printing operation of the clockwork 24. The punchings may be circular or of peculiar shape to diminish the risk of unauthorized subsequent punching of the record strip. Reference has been directed by the Comptroller to Specifications 27709/13, 3774/15, and 121,308.
Patent GB-1207714-A (GB)
Title: Improvements in or relating to the electrolysis of alkali metal salt solutions
IPC: C25B9/14
Filed: 1968-03-29
Abstract: 1,207,714. Mercury cathode cells. KUREHA KAGAKU KOGYO K.K. March 29, 1968 [April 5, 1967], No.15089/68. Heading C7B. In the electrolysis of alkali metal salt solutions in an electrolysis vessel 1 using a mercury cathode, the alkali metal e.g. sodium amalgam formed is first separated from electrolyte and contaminants (amalgam butter) e.g. by passing through gas and mercury baffles 4 and 5 into outlet passage 6, then denuded in a denuding tower 7 to recover mercury which is separated from the caustic alkali e.g. soda and caused to flow e.g. by pump 9, after or prior to addition of wash water thereto e.g. from inlet 10, into a mercury return passageway 11 to pass under a baffle 12, thereby separating the mercury 16 from the mercury emulsion 17 (butter-like emulsion of mercury particles and graphite in water) and wash water 18, so that most of the mercury is recirculated e.g. via inlet passage 13 to the vessel 1, and the mercury emulsion and wash water and a minor part of the mercury flows over a weir 14 and is recirculated along an auxiliary passageway 15 to the denuding tower 7. A common side wall may be provided between the return passageway and electrolysis vessel, Figs.4 and 5 (not shown) for the passage therethrough of mercury, a weir and auxiliary passageway to the denuding tower being provided at the downflow end of the return passageway.
Patent GB-1522632-A (GB)
Title: Fenestrated cuffed tracheotomy tube
IPC: A61M16/04
Filed: 1975-08-14
Abstract: 1522632 Tracheotomy tubes B C FIRTH 13 April 1976 [14 April 1975 19 June 1975] 15148/75 and 26058/75 Heading A5R A tracheotomy tube having an inflatable cuff 4 at one end for holding it in position has an aperture 3 in its wall and an insert 2 for selectively opening or closing the aperture for permitting the patient to breathe naturally when the aperture is open or through a ventilator secured to the tube when the aperture is closed. The insert 2 may be a tube which is slidable within the tracheotomy tube and having cut-away portions 8, 10, 12 and a sealing surface 9 which closes the aperture 3 for ventilator breathing when the insert is placed in the tracheotomy tube the insert in wholly removed to open the aperture 3 or is replaced by a similar insert having an aperture corresponding to the aperture 3 in place of the sealing surface 9 for natural breathing. Alternatively, the insert may be a resilient strip (43) Fig. 4 (not shown) slidable in guides (41) internally of the tracheotomy tube for selectively opening or closing the aperture. The ventilator may be connected with the tracheotomy tube through a connector (17) Fig. 3 (not shown) rotatable relative to the tracheotomy tube and having a part (21) closable by a plug 22 for permitting the insertion of a catheter.
Patent GB-944343-A (GB)
Title: Improvements in or relating to crystallization processes
IPC: B01D9/00
Filed: 1960-05-02
Abstract: p-Xylene can be crystallized from a solution of a mixture which also contains o- and m-xylenes and ethylbenzene by direct contact with a non-miscible coolant liquid, e.g. an aqueous brine at - 40 DEG  C., which has a density sufficiently different from the mother liquid for easy decantation of the mother liquors and coolant.ALSO:Concentrated solutions are crystallized by direct contact with a non-miscible, coolant liquid, which is chemically inert, does not emulsify and with a density such that the liquids can be decanted easily from the crystals.  The process may be performed in an apparatus (not shown) with several compartments to which coolant can be added while the crystals and liquid move under the influence of a screw conveyer.
Patent GB-674554-A (GB)
Title: Apparatus for use in cement lasting footwear
IPC: A43D25/18
Filed: 1950-06-21
Abstract: Apparatus for applying adhesive to the marginal portion of one end of an insole, and wherein a rigid foot, designed to rest on the insole, has a curved outer edge shaped to conform to the upstanding lasting margin of the upper, the foot having an orifice in its under surface for the delivery of adhesive and means for supplying adhesive, is characterized in that the orifice is spaced inwardly from and is of a curvature conforming to that of the curved outer edge of the foot whereby adhesive expelled from the orifice forms a U-shaped gob on the insole closely adjacent to the curved end of the latter. Referring to the drawings spring 10 supported at 6 from arms 5 and 7 which swing freely at 4 and 8 on post 1 carries the adhesive containing and applying apparatus.  In operation the apparatus is moved by handle 50 so that its forward edge 16 fits within the upstanding margin M of the upper U, and finger piece 52 actuated thus admitting compressed air to chamber 19 and forcing liquid adhesive therefrom through opening 18 to recess 17 <PICT:0674554/III/1> <PICT:0674554/III/2> <PICT:0674554/III/3> <PICT:0674554/III/4> <PICT:0674554/III/5> and floor plate 20a.  This floor plate i curved to the same curvature as the inner surface 22a of the lower part recess 17, said surface 22a being substantially concentric with the outer surface 16 of the foot but of lesser radius, the edge 22 being spaced from the surface 22a to define a narrow orifice which is of substantially U-shape.  A valve member 23 of a contour generally similar to floor plate 20a is arranged immediately above this plate and normally resiliently engages the shoulder 171 thus preventing escape of the liquid adhesive.  However, as the pressure of liquid adhesive builds up, the valve member is forced open and a U-shaped gob of adhesive deposited on the sole; this gob may be spread out by movement of the foot.  In a preferred modification, Figs. 8 and 12, the extending portion 15a of the foot member is connected with the bottom 14 by a relatively narrow neck portion N and the adhesive flows along channels 180 and 172 to press open valve 30 and deposit adhesive on the insole S along the U-shaped delivery orifice 175.
Patent GB-669068-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/54
Filed: 1949-06-10
Abstract: 669,068. Electric discharge tubes. PHILIPS ELECTRICAL, Ltd. June 10, 1949 [June 15, 1948], No. 15516/49. Class 39 (i). In a fluorescent discharge lamp or a cathoderay tube 1 in which an electrically conductive layer 2 is applied to the inner surface of the tube wall, the said layer having applied to it, at least part of the time, an electric voltage by means of a bi-metallic element 8, the latter, at least in the non-heated condition, engages the conductive layer 2 and is arranged so that electrical contact between the bimetallic element, and the conductive layer is broken when the bimetallic element is sufficiently heated. The layer 2 can be made of silver. The bi-metallic strip 8 is secured to the stay wire of the electrode 6 which is covered with highly electronemissive material, the elements 6, 8 and stem 3 constituting a single unit which is introduced into the end of the tube 1 whilst the element 8 is heated by a gas flame. The inner surface of the tube may be coated with a fluorescent layer. The bi-metallic element may be supported on a separate stay wire in the stem 3 and this stay wire may be brought into electrical contact with the electrode 6 internally or externally of the discharge tube. The electrode 6 may be provided with two supply wires.
Patent GB-1507825-A (GB)
Title: Method and device for stripping excess ink from a rotating printing roll in rotogravure presses
IPC: B41F9/10
Filed: 1974-04-08
Abstract: 1507825 Doctor blades AHLEN & AKERLUNDS FORLAGS AB 7 April 1975 [8 April 1974] 15554/74 Heading B6C A removable doctor blade assembly comprises a blade holder 19 and a blade 17 of steel strip having a uniform thickness of between 0À05 and 0À15 mm., the blade being held against printing roll 1la with a predetermined pressure. The blade holder 19 has a plate 18 clamped in a further holder 10, 11 and a smaller plate 20 joined to plate 18 by sprung bolts 21 which when depressed against leaf springs 25 release blade 17. To remove or insert blade 17 it may be bent in its own plane, by virtue of its thinness, which dimension is constant.
Patent GB-242555-A (GB)
Title: Fastening means or lock for bracelets
IPC: A44C5/20
Filed: 1925-06-17
Abstract: 242,555. Werndle, F. June 17, 1925. No Patent granted (Sealing fee not paid). Bracelets.-A fastening for an elastic expanding bracelet comprises three links b, c, d of which the links b, d are connected at one end to the ends a, e respectively of the bracelet. The link c is pivoted to, and is adapted to fold inside, the link b, and the link d is free to slide along the link c. Fig. 2 shows the fastening in a semi-opened position. The fastening is held in the closed position when the link d is engaged in an indentation f in the link b by the tension in the bracelet. Fig. 5 shows, also in a semiopened position, a modified form adapted to give still further increased size to the opened bracelet by the, addition of a link c<1>.
Patent GB-140837-A (GB)
Title: Improvements connected with the ventilation, cooling, conditioning, preservation and discharge of grain, seed and the like when stored in silos and other holders or containers
IPC: B65D88/64
Filed: 1918-09-26
Abstract: 140,837. Collins, J. W., and Rang, H. A. J. Sept. 26, 1918. Corn-silos; ventilating, conditioning, and damping grain and seeds.-For the purpose of ventilating, cooling, conditioning, and preserving grain, seeds, &c. stored in a silo or other container, by the introduction of air &c., and for facilitating discharge of the grain &c., the silo is provided near its lower end with a transverse structure consisting of members of semicircular, inverted Y or V, or like shape in cross-section, arranged with their outer ends against openings formed in the walls of the silo. The structure 4 shown is cruciform in plan and made up of members shaped to bear against the walls of a square silo 1. It is located at or immediately below the junction of the vertical walls and the hopper-shaped lower part 3 of the silo. It may be made of cast iron, reinforced concrete, &c., but is preferably' built up of iron or steel strips 5 bent to an obtuse angle and riveted together so as to form sections of inverted-Y shape. The structure members and the grain &c. form the upper and lower walls, respectively, of channels into which air passes through the openings 7 in the silo. According to the Provisional Specification, the air may be heated or moistened and may be mixed with other gases. It may be forced into the silo under pressure and may be withdrawn by fans communicating with the upper part of the silo.
Patent GB-578875-A (GB)
Title: An improved system of charging pulse shaping networks
IPC: H03K3/537
Filed: 1941-12-08
Abstract: 578,875. Impulse generators. BRITISH THOMSON - HOUSTON CO., Ltd., and WILKINSON, K. J. R. Dec. 8, 1941, No. 15797. [Class 40 (v)] [Also in Group XXXV] Recurrent voltage impulses are produced by charging a condenser 5, or a network of series inductance and shunt capacity elements, from a single-phase source 1 through a transformer 3, and periodically discharging it through a gasfilled discharge tube or a spark gap 6 and load 7. An inductance 2 allows a desired choice of the resonant frequency of the charging circuit. The device 6 is triggered by a pulse applied thereto by the secondary coil of a peaking transformer 4, thereby effecting the discharge at the instant at which the source 1 is supplying zero current. When the device 6 is a gas-filled discharge tube, the ratio of the resonant frequency of the network to the working frequency is chosen between 0.5 and 0.8, or between 1.3 and 1.6. For a triggered spark gap, the ratio should lie between 0.8 and 1.3.
Patent GB-666565-A (GB)
Title: An improved mechanical system for moving the lifter rail of a textile spinning or twisting machine preparatory to a doffing operation
IPC: D01H9/14
Filed: 1948-06-14
Abstract: 666,565. Lifter-rail motion for spinning or twisting machines. WADEMAN, W., and WADEMAN, J. May 6, 1949 [June 14, 1948), No. 15906/48. Class 120(ii) A mechanical system for moving the lifter rail of a spinning or twisting machine or the like includes a spring actuated member mechanically connected to said rail and adapted to move within another member against the action of a spring means in one direction and to be urged in the other direction by said spring means, the movement of the spring actuated member being controlled by two mutually threadedly engaged members, one of which is prevented from rotating, whereby rotation of the other causes a relative displacement of the two in the direction of the thread axis. As shown, a tube 11 is secured to the machine frame 12. Within the tube is a screwed shaft 14 which engages with an internally threaded bush, having projections which slide in longitudinal slots 11a in tube 11 when shaft 14 is rotated. Between the shaft 14 and tube 11 another tube 16 is inserted, said tube 16 having a bayonet slot 16a which engages projections 15a of bush 15. An end cap 14a, having a cover 17, is fixed to the end of shaft 14 and is slidable within tube 16 the other end of which is blind and provided with an adjustable screw 19 having a flat end piece 19a. Between the end piece 19a and cover 17 is a helical spring 20. On the protruding end of shaft 14 is a gear wheel 90 which may connect with a machine drive, and a handwheel 28. Cap rail 21 of the machine rests on castings 22 which slide on shafts 23 and are connected by chain 24 to lugs 25 on tube 16 which is loosely supported on carriers 26. In operation as the ring rail is lowered spring 20 is compressed and as it is raised the energy stored in the spring aids in the raising. A second embodiment shows a similar device fitted to a ring frame.
Patent GB-254093-A (GB)
Title: Improved resetting device for regulators operated by a pressure medium
IPC: F16K31/124
Filed: 1925-06-19
Abstract: 254,093. Roucka, E. June 19, 1925. Relay devices.-A servo-motor gear for use in connection with apparatus for regulating any operation and in connection with measuring methods which operate with an auxiliary energy is provided with two separate resetting members arranged in series in the two exhaust passages from the control valve. The Figure shows the invention applied to the actuation of a damper 4 so as to maintain a constant partial vacuum in the flue 2. The damper is actuated by a piston 7 working in a cylinder 8 connected by pipes 38 with a control valve 24. The control valve is actuated by a liquid sealed bell 12 subject to conduit pressure 10 and acting through links 16, 22 and spring-loaded lever 18 and acts to connect a supply pipe 28 to one or other of the pipes 38 while connecting the free pipe 38 to one or other of the pipes 30. The pipes 30 lead into cylinders 40, 42 provided with spring-loaded leaky pistons 44, 46 coupled to conical valves 48, 50 so that part of the fluid flowing through the conduits 30 discharges into the vesrel 60 and thence back to the pump. This enables the resetting device to work according to some other law which would operate were the resetting cylinders connected directly to the conduit 30. Fluid parsing through the piston 44, 46 passes to the resetting cylinders 72, 74, and there acts on pistons 76, 78 connected by rods 90 to points on the lever 18 on opposite sides of the pivot 20. The pistons 76, 78 also act as damping pistons, and to that end are provided with ports 80, 82 more or less covered by plates 94 on tubes 88 adjusted. by discs 84, 86 and held in position by springs 92. Fluid passing over the edges of the cylinders 72, 74 falls into the receptacle 60.
Patent GB-742677-A (GB)
Title: Improvements in supports for the platforms of weighing apparatus
Inventor: RICHARDS HORACE CLAUDE
IPC: G01G21/23
Filed: 1953-06-11
Abstract: 742,677. Weighing apparatus. AVERY, Ltd., W. & T. June 4, 1954 [June 11, 1953], No. 16068/53. Class 143 A bearing for the load platform of a weighing machine consists of a bar f engaging a stool of the platform, suspended at both ends by pairs of interconnected links e', e<SP>2</SP> which are in turn suspended from bars b secured to the triangular member a. This member a is approximately H-shaped in cross-section, Fig. 2 (not shown), the bars b linking the upper arm of the H; the lower arms being linked by a knife edge g.
Patent GB-216360-A (GB)
Title: Improvement connected with music cases, satchels, bags and the like
IPC: A45C3/04
Filed: 1923-06-21
Abstract: 216,360. Jarvis, F. June 21, 1923. Bags; satchels.-A music case, satchel, bag or the like of the kind provided with a bar handle F has the loop handle C provided with hooks E adapted to engage the bar and so distribute the weight of the contents equally or both sides of the case. In the form shown, the hooks are formed at the ends of a wire D, over which the central or hand-grip portion of the handle C is curled; but the hooks may be riveted to the handle C.