baber/WOPTO huggingface dataset:
Patent GB-731565-A (GB)
Title: Apparatus for overheat and fire detection or for temperature control
IPC: G08B17/04
Filed: 1953-03-31
Abstract: 731,565. Temperature-responsive actuating elements. POITRAS, E. J. March 31, 1953 [June 14, 1952], No. 8968/53. Class 64 (2). [Also in Groups XXXVII and XXXVIII] An excess-temperature detector, e.g. a temperature alarm for use in aircraft, comprises at least two bellows 30, 40 to which are respectively connected two parallel extending and closely associated lengths of tubing 10, 20 closed at their outer ends, each bellows and associated length of tubing being filled with liquid effecting equal expansions of volume for equal temperature rises but having different boiling points so that when the temperature exceeds the lower boiling point there occurs a differential expansion of the two bellows, thus opening or closing a pair of contacts 60, one contact 61 being controlled by the movement of one bellows 30 while the other contact 62 is controlled by the movement of the other bellows 40. The device also provides a warning in the event of a uniform heating of the tubing which is in excess of the normal range of temperatures but insufficient to cause boiling in either tube. In this case the large expansion which occurs in the bellows causes bellows 30 to close contacts 50. The same liquid may be used to fill both assemblies but under different pressures. Alternatively, different liquids may be used, in which case the dimensions of the two assemblies (e.g. the relative cross-sectional areas of the bellows) may be different to compensate for the different expansions or the contacts 50 and 60 may be connected to their respective bellows through different mechanical linkages- or gearing. The lower bellows 30 connected to the tubing 10 has a fixed lower plate 31 and a spring-loaded upper plate 32 (having an inverted cup-like shape). The spring 33 also rests against the fixed base 41 of bellows 40 which is connected to tubing 20 and .also comprises a spring-loaded movable upper plate 42. The upper plate 32 of bellows 30 is connected through pillars 34 to a movable cross-piece 35 carrying one of each of the pairs of contacts 50 and 60 which are electrically connected to the housing of the device and thence to a terminal 15. Contacts 50 comprise a contact 51 and a fixed contact 52. Contact 61 is associated with a contact 62 mounted on the movable upper plate 42 of the bellows 40. Contacts 52 and 62 are connected to respective insulated terminals 55 and 65. In one embodiment, Fig. 10 (not shown), three bellows are used whereby warnings of overheating having different degrees of urgency may be given. It is also stated that an increased sensitivity may be obtained by using material having different heat-conductivity properties for the different lengths of tubing.
Patent GB-681251-A (GB)
Title: Method of and apparatus for cooling nitrous gases
IPC: C01B21/26
Filed: 1949-04-02
Abstract: A method of withdrawing water from nitrous gases containing water vapour comprises passing the gases substantially horizontally through a cooler, Fig. 1, provided with hollow cooling elements, preferably pipes 2, running perpendicularly to the gas flow while a cooling medium (e.g. water) is passed through the elements.  The resulting condensate from the nitrous gases is preferably discharged through a pipe 4 at the hot end of the cooler.  In the process described for the manufacture of nitric acid in which hot nitrous gases formed by oxidation of ammonia at atmospheric pressure are cooled and subsequently compressed and fed into oxidation chambers and then supplied to absorption vessels, the said gases are cooled by the above method subsequently to the compression and prior to being fed into the oxidation chambers.  In Fig. 2, nitrous gases from a recuperation boiler 5 are cooled to 125/250 DEG  C in a heat exchanger 7a by the residual gas from absorption vessels 13 which is thereby heated to approximately 150 DEG  C and subsequently used to drive the turbine 8a of the compressor unit 8 before discharging to the chimney 16. The nitrous gases are then cooled to 35 DEG C in a condenser cooler 7b <PICT:0681251/III/1> <PICT:0681251/III/2> from which water and HNO3 are discharge at 7c.  The gases are then compressed in the compressor 8b while simultaneously diluted nitric acid is injected after the required amount of supplementary air has been added at 9.  Finally the gases are cooled to 50 DEG  in a cooler 10 before being passed to the oxidation towers 11, 12 and from there to the absorption vessels 13 from which the residual gas is withdrawn at 15.  The coolers 7b and 10 are heat exchanger 7a and the turbine 8a.  Nitric acid of 60 per cent concentration is withdrawn at 15. The coolers 7b and 10 are preferably of the type shown in Fig. 1. The heat exchanger 7a and the cooler 7b may be combined into a single unit.  For a cooler of p  square cross-section the vertical length of the cooling elements is only slightly greater than the horizontal length of the cooler. For coolers of cylindrical or oblong cross-section, the horizontal length of the cooler may be equal to the square root of the surface of the cross-sectional area.  The coolers are made of nitric acid resisting material, e.g. chrome nickel steel. Specification 345,662 is referred to.
Patent GB-351980-A (GB)
Title: Improvements in, or relating to, switch and other wall-boxes for use in connection with electrical wiring conduits
IPC: H02G3/08
Filed: 1930-03-21
Abstract: 351,980. Bases for couplings. SIMPLEX CONDUITS, Ltd. and McLOUGHLIN, H. F., Simplex Works, Garrison Lane, Birmingham. March 21, 1930, No. 9036. [Class 38 (i).] Bases for switches, wall sockets, &c. are made up of parts that enable a flush mounting or surface mounting construction to be produced alternativelv. The bodv of the fitting is a channelshaped pressing a, Fig. 2, having vertical sides a<1>, that can however be bent inwardly. In length the body a is shorter than the cover-plate c, Fig. 5, or e, Fig. 7. For a surface fitting the sides a<1> remain vertical and endplates b are fitted that are dished so as to extend the length of the body to correspond with that of the cover-plate c. For flush fitting the sides a<1> are bent inwardly and secured to flat endplates d, Fig. 7, with inclined sides, so that the cover-plate e overlaps the body on all sides. The endplates are attached by L- shaped bolts k having nuts k<1> with a collar that enters an enlarged hole in the body.
Patent GB-1244802-A (GB)
Title: A method of producing elements for layer chromatography
Inventor: RADMACKER EDMUND
IPC: G01N30/93
Filed: 1969-02-19
Abstract: 1,244,802. Elements for thin layer chromatography. E. RADMACHER [trading as MACHEREY, NAGEL & CO.] 19 Feb., 1969 [23 Feb., 1968], No. 9036/69. Heading B1X. Thin layer chromatography elements are produced by forming a suspension of a finely divided sorbent in a liquid, e.g. water, adding without coagulation a dispersion of a crosslinkable synthetic resin or a composition thereof, forming an element, e.g. by applying the suspension to a base, and finally drying the element and curing it so as to promote crosslinking. The sorbents employed include silica gel, kieselguhr, alumina, magnesium silicate, calcium phosphate, cellulose and derivatives thereoff polyamides, polycarbonates and natural and synthetic ion exchangers. Any resin which when cross-linked is chemically inert and insoluble in organic solvents may be employed, but a polyacrylate is preferred, particularly copolymers of acrylates and/or methacrylates with acrylamides and/or methacrylamides, or the N-methylol derivatives thereof. Base support materials to which the dispersion is applied include glass, plastics and metal plates and foils and metallised or plastics-lined paper.
Patent GB-417984-A (GB)
Title: Method and means for making comparison between columns on a number of sheets of tables
IPC: B42D12/00
Filed: 1934-03-23
Abstract: 417,984. Book - keeping sheets. BEHRENS, (nee MAAS), M., 108, Bismarckstrasse, Charlottenburg, Berlin. March 23, 1934, No. 9223. [Classes 16 and 146 (i).] A method of comparing any desired columns on sheets 1 containing various tables comprises folding the sheets along prepared grooves, scorings, or flexible hinges 2 so that the desired columns lie against the edges of the sheets, the latter being placed one over the other and clamped in a holding-device in such manner that the columns on the different sheets to be compared lie side by side. The sheets may comprise strips of cardboard constituting the columns, joined by strips of linen. The sheets are placed in a tray comprising a base 4 and four upstanding sides 5, 5a, and the clamping- device may comprise a rubber or other elastic band 6, Fig. 4, which may be wholly or in part transparent secured at each end by a member 7. The clamping-device may take the form of a number of spring-clips threaded on a spindle extending across the base 4, the upper part of each clip being adapted to lock in both the open and closed positions. In the form shown in Fig. 7, a clamping-strip 15 extending the width of the tray is pressed downwardly by coil or flat springs 17 mounted on a traverse plate 11. The strip 15 is loosely attached to the springs, and rounded off at 16 to facilitate insertion of sheets thereunder. The strip may be pivoted at one end, and spring-pressed at the other. The plate 11 may be secured to the tray by means such as screws 18. In addition to the abovementioned clamping- devices one or more rods each pivoted at one end and retained by any means at the other end may be provided at the lower ends of the sheets and at intermediate stages, the rods being preferably transparent.
Patent GB-236665-A (GB)
Title: Improvements in apparatus for re-rubbering pneumatic tyres
IPC: B29C35/00
Filed: 1924-04-11
Abstract: 236,665. Eymael, A., and Dall'este, M. April 11, 1924. Moulding wheel tyres. -Apparatus for rerubbering tyre covers comprises a two - part mould 1, 2 fitted with a tread ring 4 and an expansible annulus composed of sections 5 which are moved relatively to one another by an expanding device having ends adapted to be wedged apart. As shown, the sections 5 interfit with a pin-and-slot connection 7, 8 and have inturned flanges 9 adapted to be engaged by the bevelled edges 11 of an expanding-ring 10. The ring 10 is furnished with ends 10<1> having nibs 12 engagable by a wedging-device 14 composed of a pair of legs hinged together at 15 and furnished with nuts 17 to receive a screw 18 having at the ends strong springs 19 held by nuts 20. A current of cold air may be passed through the annulus to prevent overheating of the canvas layers.
Patent GB-1359501-A (GB)
Title: Electric switches with mechanical contact actuation
IPC: H01H13/20
Filed: 1971-04-13
Abstract: 1359501 Mechanical switches HONEYWELL Ltd 4 April 1972 [13 April 1971] 9255/71 Heading H1N In an electric switch, rotary contacts 24, Fig. 1, are mounted for joint rotation with toothed gears 22, Fig. 2, movable over fixed racks 25 or pinions whereby the contacts 24 engage the fixed contacts 27 or 27<SP>1</SP> with a combined sliding and rotary motion. In the example shown three rotary contacts 24 comprising silver sleeves on insulating supports 23 are mounted on a spindle 20 in a yoke 14 of a moving actuator 6, 7 having a return spring 10 comprising a stack of spring washers. The contacts 24 move in unison from a normally closed circuit position at which they bridge three pairs of contact blades 27 to a second position bridging three pairs of blades 27<SP>1</SP>. The combined sliding and rotary movement provides a cleaning action at the contact surfaces. In a modification the return spring 10 may be omitted so that the switch may be pushed or pulled between its two positions. Another embodiment is described in which a single rotary contact (58), Fig. 8 (not shown), carried by a push button (53) has one lobe which alternately moves to bridge pairs of fixed contact blades (59), (60) arranged an opposite sides of the spindle (56). The rotary contact (40), Fig. 4 (not shown) may alternatively be carried an arms (37) of a rotary spindle (33) and is rotated by a pinion, on its shaft (38) engageable with a fixed pinion (6). In this example the contact (40) bridges a single pair of parallel contact blades (41).
Patent GB-721306-A (GB)
Title: Improvements in or relating to machines for the manufacture of ribbed insoles
IPC: A43D43/06
Filed: 1952-04-10
Abstract: 721,306. Insoles. HEIDE, H. C. (Prime Manufacturing Co.). July 25, 1952 [April 10, 1952], No. 9299/52. Class 17 (1). A machine for applying and adhesively attaching strip material to an insole to form a sewing rib is provided with a slashing or pinking knife to facilitate the application of the tape more especially around the convex portion at the toe end. The machine has a work-supporting roll 17 and a pair of driven shafts 18, 19 on which are mounted eccentrics to operate arms 20, 21 each carrying a feed foot which are moved alternately to feed the strip material through the machine and press the tape against the insole. The strip material is fed through a guide foot 22 adjustably fastened to a bracket 23 and rocked about pivot 24 by link 25 and member 26 when treadle 28 is operated. Tape cut-off mechanism 29 is also operated from the treadle alternately with guide foot 22. A feed foot 30 which is carried by arm 21 has an inner portion 32 and outer portion 33 divided by a rib-receiving groove 31 which receives the insole and ribbing material in such manner that the inturned part of the adhesive coated tape 12 is engaged by a portion 32 and the flange of the tape on the outside of the rib is laid substantially flush with the insole edge by the portion 33. Arm 20 carries a similar feed foot. A segmental-shaped slashing knife 35 is adjustably secured by a screw 36 in a groove 34 in the outer portion of the feed foot 30 and operates through an opening in the work-engaging face of the part 33 of the feed foot. A screw 37 retains the knife in position.
Patent GB-121908-A (GB)
Title: Improved Picture Hooks.
Inventor: TAYLOR JOSEPH WARE
IPC: A47G1/16
Filed: 1918-06-06
Abstract: 121,908. Taylor, J. W. June 6, 1918. Hooks.-A moulding hook for suspending pictures &c. has two grooved pulleys to receive picture cords, mounted on the same axis and concealed by an ornament or button. A heel B at the back of the hook bears against the wall.
Patent GB-248942-A (GB)
Title: Improvements in or relating to electric cells
IPC: H01M6/04
Filed: 1925-04-08
Abstract: 248,942. Gaiser, C. April 8, 1925. Electrodes; electrolytes; absorbents. - Electrodes for wet or dry cells are made flexible so that only a part is used, the remainder being coiled or folded up as a reserve and unwound as required. On a flexible wire or thin strip metallic electrode is fastened an intermediate layer for the reception of electrolyte, and on this another metallic strip or a wire or like sheath is wound to form a second electrode, the whole forming a flexible band. The intermediate layer may act as electrolyte or consist of absorbent substance such a cloth or glass wool so as to produce a current when dipped into liquid electrolyte; or it may contain the electrolyte in a dry form to be moistened for use. In the last case, a semi-permeable membrane may surround the electrolyte. To prevent water from diffusing too far into the electrolytic layer, this may be divided into sections by spaced resin or similar impervious blocks e<1>, and as each section is consumed it is cut off and a fresh section moistened. For use as dry cells, the electrolyte comprises a ponder or gelatinous substance which wells up easily, such as water glass, impregnated with the required salts; to prevent waste, an insulating strip d such as mica or waxed paper is inserted, which is withdrawn from each section or destroyed as required. The outer electrode may comprise two bands or a flexible cylinder. from which the current may be taken at any point by rubbing rollers l, m, the central electrode being connected to another terminal, preferably attached to the bobbin on which the band is wound. The electrodes may also be cut into insulated sections, which may be connected detachably or permanently in any way; the sections of the centre electrode may pass out at the ends through the intermediate electrolytic layer, which may be continuous. Magnesium or a more electro positive element or a metal of the magnesium group may serve as positive electrode and a metallic oxide, preferably a higher oxide of lead or copper as negative electrode. Magnesium compounds, such as sulphate or acetate may be used as electrolyte.
Patent GB-833031-A (GB)
Title: Electron guns
IPC: H01J3/02
Filed: 1957-03-22
Abstract: 833,031. Velocity modulated tubes. SPERRY RAND CORPORATION. March 22, 1957 March 28, 1956], No. 9482/57. Class 39(1). In a high power klystron or travelling wave tube having a high density beam the cathode, ring focusing electrode and accelerating anode of the gun may serve as a cavity resonator excited by the beam and producing spurious velocity modulation thereof which may be within the operating band of the tube; to prevent this the focusing electrode is formed with one or more slots extending perpendicular to the beam axis so as to interrupt the current paths of a (TM) mode of this resonator (the current paths of some TM modes normally being parallel to the electron path and the parts of the focusing electrode on either side of the slot or slots being at the same DC potential). The TMo1 and TMo2 modes are instanced. There may be four slots 23 separated by necks 24 or if the capacity of the slots is such that currents still flow the slots are filled with lossy material such as porous ceramic impregnated with carbon or the focusing electrode may be in two completely separated parts with external insulating means supporting one from the other but the two parts of the focusing electrode are still at the same DC. potential (i.e. are electrically connected together). The slots may be positioned in a region of maximum current flow in the resonator. The concave emissive cathode surface is carried from casing 14 by supports 12, 13 and has a heater 15, and the focusing electrode 18 is connected to the emissive cathode surface. The electrode 18 has flanges 19, 21, the inner diameter of flange 19 being equal to the outer diameter of the cathode and the inner diameter of flange 21 being slightly less than that of 19 but greater than that of anode 16. The flange 21 is thickened to withstand high temperatures and rounded to prevent breakdown.
Patent GB-715753-A (GB)
Title: Improvements in or relating to a circuit for use with electronic counting means
IPC: H03K21/02
Filed: 1951-04-24
Abstract: 715,753. Transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 24, 1951 [May 4, 1950], No. 9493/51. Class 40 (6). [Also in Group XXXVI] An electronic counting circuit comprises a transistor having two whisker emitter electrodes 38 and 40 and a collector electrode 42, an electronic counter 90 connected to collector 42, a source of voltage 66 controlled by switch 88 connected to emitter 40, and a source of signal voltage 84 connected to emitter 38. The bias sources and signal amplitude are selected so that counter 90 may be operated by input signal 84 only when switch 88 is closed to provide a positive bias to emitter 40 which increases the response of the collector current to input signals applied to emitter 38. Fig. 1 shows a suitable form of transistor comprising two emitter electrodes 38, 40 and collector electrode 42, which are positioned to define an equi!ateral triangle on the surface of crystal 36.
Patent GB-331210-A (GB)
Title: Improvements in metal seals
IPC: G09F3/03
Filed: 1929-03-25
Abstract: 331,210. Mathews, G. S. March 25,. 1929. No Patent granted (Seading fee not paid). Spiked plates. - The prongs C of a metal seal are provided with inclined slits A. When the prongs curl on being driven into wood these slits form forks to prevent withdrawal.
Patent GB-103432-A (GB)
Title: Improved Manufacture of Cotton Fabrics.
IPC: D06M11/38
Filed: 1916-07-06
Abstract: 103,432. Akt.-Ges. Cilander. Feb. 9, 1916, [Convention date]. Resist printing; inkless printing by chemical reaction.-Pattern effects are produced on cotton fabrics by printing them with a resist and treating them with sulphuric acid of a strength not above 50¢‹ BÚ. and at a temperature not above -4‹C. The parts treated by the acid become transparent after mercerization, and previously non-mercerized fabric, so treated, has parts having a wool-like appearance. The effect is increased by subsequent dyeing, the dyestuffs having a greater affinity for the parts treated by the acid.
Patent GB-1527971-A (GB)
Title: Finned tail unit for a missile
IPC: F42B10/16
Filed: 1977-03-07
Abstract: 1527971 Finned tail units MESSERSCHMITT-BOLKOW-BLOHM GmbH 7 March 1977 [10 March 1876] C9546/77 Heading F3A A tail unit for a missile 1 has tapered, erectile fins 2, 3 made of a hard but elastic material, e.g. spring steel, which enables the fins to be flexed around the missile body in a launching tube 9. The fins may be inclined, or be assymetrical, with respect to the longitudinal axis of the missile.
Patent GB-1383816-A (GB)
Title: Plant lifter for use with a tractor
IPC: A01G23/02
Filed: 1972-03-01
Abstract: 1383816 Plant lifters S H MARAIN 1 March 1972 [1 March 1971] 9555/72 Heading A1E A plant lifter for raising saplings comprises a vertical cutting disc 9, disposed ahead of a horizontal cutting blade 4 and a shaker 8 arranged so that the cutting members 9 and 4 sever the saplings' roots and a strip of earth containing the saplings which then passes over the shaker 8. The shaker 8 consists of parallel rods having a common transverse hinge located at the lower end of an arm 3 and shaking movement is imparted to these rods by a bar 7 reciprocated by an eccentric 6 itself driven from a tractor on which the plant lifter is mounted. The angle of incidence of the cutting disc 9, to the direction of travel is controlled via an arm 9 2 .
Patent GB-635419-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D13/02
Filed: 1948-04-06
Abstract: 635,419. Centrifugal pumps. DRYSDALE & CO., Ltd., and DRYSDALE, J. W. W. April 6, 1948, No. 9580. [Class 110(i)] In a submersible electrically driven centrifugal pump 9 of the type comprising an air bell 1 surmounting the driving motor 2, the motor and pump shafts 3, 8 are vertical and are connected by gearing which includes an idler gear 5. The gears run in an oil bath 10. An oil pump 11 and a waterring air exhauster 14 are included. In the submerged condition the air in the bell 1 circulates as shown by arrows 16. In the non-submerged condition air enters at 12 and leaves at 13.