baber/WOPTO huggingface dataset:
Patent GB-977835-A (GB)
Title: Improvements in or relating to ceramic materials
Inventor: WHITE ALFRED DUTTON
IPC: C04B35/01
Filed: 1962-03-20
Abstract: A mixture consisting of (a) 25% to 99.99% of indium trioxide \sB up to 20% of gallium trioxide; and (b) at least one of stannic oxide, titania, zirconia, nisbium, pentoxide is fired at 800-1550 DEG  C. for at least one hour.  In a modification at least part of (b) is replaced by an equivalent quantity of germanium dioxide and/or tungsten trioxide.  The mixture is prefired, crushed, shaped after adding camphor and fired. For the lower temperatures high pressures are applied.
Patent GB-1253498-A (GB)
Title: Electronic supervision circuit for telecommunication systems
IPC: H04Q3/00
Filed: 1970-03-05
Abstract: 1,253,498. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 5 March, 1970 [7 March, 1969], No. 10628/70. Heading H4K. A circuit for supervising the state of a line circuit uses four transistors with two 1, 5 connected to the "a" ling through choke 11 and two 3, 6 connected to the "b" line through choke 14. A battery is connected to resistor 15 and to Zener diode 20. The output of the two circuits are connected to detector scanner terminals 7, 8 respectively. The transistor 3 is biased to become conductive or non-conductive dependent on the resistance of the subscriber loop. The transistor 1 is connected to conduct and remain conducting whenever the subscriber loop is closed. Thus signals (0, 0) and (1, 1) at terminals 7, 8 represent on hook and off hook conditions respectively. - An additional recall facility is obtained by operating switch 18 which inserts high resistance 18 in the loop thus turning off transistor 3 and provides signals (1, 0) at terminals 7, 8 of detector scanner. Spurious calling conditions caused by earth faults and short circuits are indicated as (0, 1) at terminals 7, 8.
Patent GB-527266-A (GB)
Title: Improvements in optical display devices
IPC: G09F13/12
Filed: 1939-04-05
Abstract: 527,266. Optical display apparatus. WHITE, R., GOODCHILD, H., and NEALE, J. April 5, 1939, No. 10662. [Classes 3 (i) and 3 (ii)] An optical display device for dis playing objects, intermittently if desired, and also multiple reflection! of other objects or outlines asso. ciated with the principal object! comprises a casing containing ar object C arranged behind a semi. transparent mirror B and also a lamp A, and further objects or out. lines are arranged between reflecting surfaces E and a semi-transparent mirror D arranged at another aperture or apertures in the front of the casing. The latter objects or outlines may be luminous or may be translucent parts or cut-outs in an otherwise opaque reflector E for illumination by the lamp A. Colour filters may if desired be arranged behind the reflectors E and these reflectors and the mirrors D may be inclined to one another or curved or cyclically varied to give various effects to the multiple images displayed to the observer, who will see also the object C at the times the lamp A is switched on.
Patent GB-1256308-A (GB)
Title: Improvements in or relating to stackable file trays
Inventor: HANSMANN ROBERT
IPC: B42F7/12
Filed: 1969-02-28
Abstract: 1,256,308. Trays. R. HANSMANN. 28 Feb., 1969 [1 March, 1968], No. 10711/69. Heading B8P. [Also in Division E2] A fire tray is formed with side portions 1, 1<SP>1</SP> having towards their rear ends apertures 2, 2<SP>1</SP> on the lower outside edges and connecting heads 3, 3<SP>1</SP> on the upper inside edges. The connecting heads of one tray engage in the apertures of the tray above allowing pivotal motion of the upper tray about an axis through the centres of the connecting heads of the lower tray and parallel to the rear wall 10.
Patent GB-659649-A (GB)
Title: Improvements in devices for extracting a thermionic tube from a holder
IPC: H01J9/00
Filed: 1949-04-22
Abstract: 659,649. Thermionic valve extractors. BARTLETT, W. F. April 22, 1949, No. 10731. [Class 61(ii)] A device for extracting a thermionic tube from a holder comprises an outer sleeve 1 internally tapered at 2 and an inner sleeve 3 slidable to a limited extent within the outer sleeve and carrying adjacent the tapered portion 2 of the outer sleeve a number of resilient grippers 7 each of which has a head 8 disposed between the inner and outer sleeves and a rubber pad 9. The inner sleeve is passed over the envelope of the thermionic tube and the tube is then extracted from its holder by pulling on a handle 5 carried by the outer sleeve 1, the grippers 7 being urged inwardly by the tapered portion 2 and their gripping action being increased as their heads 8 become wedged between the inner and the outer sleeves.
Patent GB-1337370-A (GB)
Title: Preparing 2-alkoxy-5-methoxybenzaldehydes
IPC: C07C47/575
Filed: 1972-03-08
Abstract: 1337370 2 - Alkoxy - 5 - methoxy benzaldehydes FUJI PHOTO FILM CO Ltd 8 March 1972 [12 March 1971] 10879/72 Heading C2C The invention comprises a process for the preparation of 2,5-dimethoxy- and 2-ethoxy-5- methoxy benzaldehydes by reaction of 2- hydroxy-5-methoxy benzaldehyde with dimethyl or diethyl sulphate in the presence of K 2 CO 3 , optionally in a solvent inert to the dialkyl sulphate. 2-Ethoxy-5-methoxy benzaldehyde is claimed per se.
Patent GB-984111-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: BENNETT ANTHONY WILFRED
IPC: H01J29/43
Filed: 1960-03-30
Abstract: 984,111. Television pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 22, 1961 [March 30, 1960], No. 11131/60. Drawings to Specification. Heading H1D. An electron discharge device, e.g. a television camera tube, has a photo-emissive cathode for converting a light image into an electron image and a charge storage target comprising a dielectric member having one surface disposed to receive the image electrons, wherein the surface is provided with a deposit of metal which increases the electron acceptance of the target relative to that of the dielectric member, the metal having a vapour pressure not exceeding 10<SP>-2</SP> mm. of mercury at 300‹ C., and a vapour pressure exceeding 10<SP>-2</SP> mm. of mercury at 700‹ C. The photo-cathode is sensitized by one or more alkali metals and then the deposit of metal on the target, e.g. antimony, tellurium or bismuth, is obtained by evaporating a bead of the metal in the tube until the electron acceptance of the surface is at a maximum as measured by the ratio Im/Ic, where Im is the current collected by a mesh electrode in proximity to the surface and Ic is the current supplied to the photo-cathode. Specification 971,534 is referred to.
Patent GB-911624-A (GB)
Title: Improvements relating to apparatus for laterally guiding a longitudinally moving web
Inventor: RUDDY JAMES
IPC: D06C3/00
Filed: 1958-04-09
Abstract: 911,624. Guiding webs transversely. FULTON & SONS Ltd., WILLIAM. April 8, 1959 [April 9, 1958], No. 11151/58. Class 100 (1). An apparatus for transversely guiding a web W comprises guide rollers 6 arranged one at each selvedge, the rollers 6 being freely rotatable on an axle 8 carried by a bracket 9 mounted on a bracket 44 to pivot about an axis 43. The bracket 44 is secured to a spindle 10 of a pneumatic motor 45. The motor 45 has a radial vane 11, Fig. 2 (not shown), within a casing 12 supplied with air under pressure through pipes 23A or 25A depending on the position of a web-engaging pivotally mounted feeler 34, Fig. 3. The feeler 34 carries a valve 30 co-operating with a block 22 having ports 26, 27 and 28. The port 26 admits air under pressure to the valve 30 to supply pipes 23 or 25, leading to the pipes 23A, 25A, Fig. 2 (not shown), depending on the position of the feeler, both pipes 23, 25, Fig. 3, being supplied when the valve is in the central position shown. A second feeler 49A, Fig. 1, engages the selvedge as the web leaves the roller. The feeler 49A controls admission of air to a double-acting cylinder unit 47 having a connecting rod 48 pivotally connected to the bracket 9. Deviations, detected by the feeler 49A, cause the bracket 9 to pivot about the axis 43. In operation, deviations of the web from its lateral path cause the bracket 44 to pivot about the axis of the motor 45 and the bracket 9 to pivot about the axis 43, the movement of the roller 6 being a combination of these motions. Specification 903,708 is referred to.
Patent GB-184542-A (GB)
Title: Improvements in hose mender
IPC: F16L55/16
Filed: 1921-04-18
Abstract: 184,542. Golby, F. W., (Independent Pneumatic Tool Co.). April 18, 1921. Joints with yielding outer part compressed.-A hose-mender comprises a core 1 with a central rib 3 which is inserted in the hose ends 4, 5, and a shell 2 with end clamps 6, 7, which surrounds the hose to grip the ends 4, 5, on to the core 1. The shell 2 is in one piece split longitudinally, the clamps 6, 7, being connected by side-portiom 8. The clamps 6, 7, are of the construction described in Specification 171,204. Reference has been directed by the Comptroller to Specifications 19232/09, and 133,909.
Patent GB-766570-A (GB)
Title: Improvements in or related to calendering machines
Inventor: FREDHOLM GUNNARIVAR
IPC: B29B7/62
Filed: 1954-04-15
Abstract: 766,570. Finishing fabrics. VERKSTADS AKTIEBOLAGET CALOR. April 15, 1954, No. 11222/54. Class 42 (1). [Also in Group XIII] A calendering machine having a bed or chest capable of being heated and forming a bearing for a calendering roller is characterized in that the roller comprises a perforated cylindrical casing, a weighted core within said casing and means at one end of the roller for connecting the interior thereof to a suction device the other end of the roller being adapted through a universal joint for connection to driving means for rotating the same. In the arrangement shown the roller 1 is supported on a bed 6 so as to press by gravity on the surface 7 of the bed. The roller is loaded by means of a cylindrical concrete core 12 and is driven from one end through a " cardan " joint.
Patent GB-157467-A (GB)
Title: Improvements in or relating to revolving churns
IPC: A01J15/06
Filed: 1916-08-09
Abstract: 157,467. Berghmark, C. S. Aug. 9, 1919. No Patent granted (Sealing fee not paid). Rotary batch-mixers-The stationary resistance wing of a revolving churn is shaped and arranged as shown in plan in Fig. 2. The curved wing 2 extends vertically for substantially the whole depth of the churning-vessel, and its upper end has an inwardly-extending flange 1, Fig. 1, to prevent the fluid from escaping upwardly when the vessel revolves. The flange 1 may have a slight inclination towards the bottom of the churn, and may be provided with a downwardly-projecting ledge 3, Fig. 3, the section of the channel being curved plain.
Patent GB-1038788-A (GB)
Title: Differential microcalorimeter
IPC: G01N25/02
Filed: 1963-03-21
Abstract: 1,038,788. Automatic temperature control. PERKIN-ELMER CORPORATION. March 21, 1963 [April 4, 1962], No. 11298/63. Heading G3R. [Also in Division G1] Differential thermal analysis of a sample material is effected by subjecting it and a reference material to a programmed heating run and noting the temperature difference between the sample and reference materials, the position and magnitude of these differences enabling a qualitiative and quantitative analysis of the sample to be made. As shown (Fig. 2), the sample and reference materials are heated by resistors Hs, Hr fed initially with equal power from a transformer 50 through diodes 54, 56. The sample and reference temperatures Ts, Tr, are measured by resistors Rs, Rr, connected in a bridge circuit with a resistor r across the unbalance diagonal. The bridge unbalance voltage, representative of the difference in temperatures Ts and Tr is amplified at 28 and fed to a transformer 52 to differentially affect the voltages applied to heaters Hs, Hr so that their heating powers are varied to make the sample and reference temperatures equal. It is shown that the difference in heating power is proportional to the output voltage from amplifier 28, and is recorded at 61. The potential between the centre point of resistor r and the join between the temperaturesensitive resistors Rs, Rr is representative of the average temperature, and is compared at 20 with a programmed reference value on potentiometer 42 to provide a signal which, through a silicon-controlled rectifier 62 feeds current through heating resistors Hs, Hr during the half-cycle when the main heating current from transformer 50 is blocked by diodes 54, 56, to make the average temperature of the sample and reference materials equal to the programmed reference temperature. Thus the recorder 61 which is driven by the programming motor 44, effectively shows the temperature difference between the sample and reference materials against a programmed average temperature. The motor speed may be controlled by the temperature difference signal (Fig. 3, not shown) to reduce the speed during transition periods. In a modification (Fig. 4), instead of programming the average temperature of the sample and reference materials, the temperature of the oven enclosure is programmed, this temperature being measured by a resistor 43 and compared at 20 with the varying program value on potentiometer 42 to control the power fed to oven heater 74 by a silicon-controlled rectifier 60. The average temperature is measured separately at 33. In a further modification of the circuit of Figure 2, the average temperature signal from amplifier 20 is also used to control an auxiliary heater for the oven (Fig. 9, not shown).
Patent GB-450714-A (GB)
Title: Improvements in or relating to wireless aerials
IPC: H01Q5/00
Filed: 1935-08-23
Abstract: 450,714. Aerials. HARDMAN, K. T., 110, Singleton Avenue, Birkenhead. Aug. 23, 1935, No. 11338. [Class 40 (v)] An aerial system comprises a plurality of conductors a, b, c of different lengths carried by spaced brackets d, e, f, g carrying insulators d<1>, e<1>, f<1>, g<1> which act as spacers as well as terminating fixtures. The wires are connected to a switch so that any combination thereof may be associated with a receiver. One or more of the wires may be connected to loading devices for increasing their capacity. Specification 443,820, [Group XXXVI], is referred to.
Patent GB-270085-A (GB)
Title: Improvements relating to winding machines for yarns or threads
IPC: D02H3/00
Filed: 1926-04-30
Abstract: 270,085. Abbott, E. J. April 30, 1926. Winding-machines; creel arrangements. -In winding yarn from a multiple yarn package directly to a series of winding packages wound of one or more yarns, the unwinding and winding packages are driven frictionally at different surface speeds which are such as to maintain a constant tension in the yarns. In a machine for winding cross-wound cheeses 34, Fig. 1, of single, double, or triple yarns the cheeses are driven by a line of drums 1 on a shaft 2, the unwinding yarn package 15 being driven by a drum 16 on a shaft 9. The shaft 2 is driven through a countershaft 22 from the shaft 3 which also drives the shaft 9 through a chain 17 and a gear-train 7 Fig. 3. The belt 20 connecting the cones 19, 21 may be moved by the shifter 23 actuated by a link 24 from a hand-wheel 28. In a machine for rewinding yarns for inspection, the yarns Y, Fig. 6, pass over guide rolls 97, 98, 99, downwardly over the inspection space 100 and thence over guide-rolls 101, 102 to be rewound. The unwinding yarn packages 15 are driven by drums 75 on shafts 63 while the winding packages are driven bv drums 76 on shafts 64, the drumshafts being driven by bevel gearing 77, 78, and 80, 81 from the shafts 79, 82. The shaft 79 is driven thruugh gearing 85, 84 from the cone pulley 88 which also drives a complemental cone pullev 89 on the shaft 82. The belt 89<a> connecting the pulleys 88, 89 is shiftable by a member 90. During rewinding, the yarns are traversed by slots 95a in a guide roll 95, Fig. 8.
Patent GB-373356-A (GB)
Title: Raising and traversing mechanism for suspended street lamps
IPC: F21V21/38
Filed: 1931-04-17
Abstract: 373,356. Raising and lowering street lamps. KROHN, F., 8, Liinebergerstrasse, Essen-West, Germany. April 17, 1931, No. 11424. Convention date, April 17, 1930. [Class 78 (iv).] In a device for raising and traversing street lamps, a lamp a, Fig. 1, is suspended from a trolley c, Figs. 1 and 2, by a rope m<1> wound on a drum m, the trolley being moved along a rope b by an endless cable d which is wound once round a drum f rigidly connected with the drum m. The drum m is normally locked against rotation by lugs i, Figs. 2 and 3, engaging slotted slides s, pivoted to a member q mounted on the axis q<1> of a spring-controlled lever n, n<1>. On rotating a handle k of a drum i, the cable d pulls the trolley along until the arm n engages an.abutment o and the slides s, sliding on pins t, are withdrawn from the path of the lugs v thereby allowing the drum m to rotate and the lamp to be lowered. When the handle k is rotated in the reverse direction, the lamp is raised until it abuts the trolley c when further rotation of the drum m is prevented and the trolley is moved along the rope b to its normal position. The drum m is locked again by the slides s when the arm n has moved away from the abutment o.
Patent GB-777120-A (GB)
Title: Improvements in or relating to gaseous electric discharge devices and envelopes therefor
IPC: H01J61/30
Filed: 1954-04-21
Abstract: 777,120. Glass. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 21, 1954 [April 27, 1953], No. 11445/54. Drawings to Specification. Class 56 [Also in Group XL(a)] The envelope of a discharge lamp containing material such as sodium or caesium consists of a plurality of layers of glass (including quartz glass) comprising (a) an outermost layer of a glass susceptable to chemical attack by the material; (b) an innermost layer which is resistant to attack, and (c) at least one intermediate layer of a glass having a coefficient of thermal expansion intermediate those of the outermost and innermost layers, With a plurality of intermediate layers they consist of glasses having graduated coefficients of thermal expansion. The or each intermediate layer can consist of mixtures of the materials constituting the outermost and innermost layers, e.g. equal quantities of such materials with only one intermediate layer. The outermost layer can consist of a boro-silicate glass and the innermost layer of a barium-aluminoborate glass comprising 22 per cent boric oxide, 12 per cent calcium oxide, 16 per cent aluminium oxide, 20 per cent barium oxide, 10 per cent magnesium oxide, 7 per cent beryllium oxide and 13 per cent silicon dioxide. Alternatively the outermost layer can consist of quartz glass and the intermediate layers of varying percentages of quartz and barium-aluminoborate glass. The envelope is made by coating the inner surface of the outermost layer with successive coatings of a suspension consisting' of a binder such as nitrocellulose, a solvent such as amyl acetate and crushed glass and separately of using each coating on to its supporting surface. Alternatively the crushed glasses can be dusted on the outermost layer and fired.
Patent GB-800345-A (GB)
Title: Improvements in or relating to gas cleaning
Inventor: HINCHLIFFE NORMAN
IPC: B03C3/15
Filed: 1955-04-21
Abstract: 800,345. Centrifugal separators. HOLMES & CO., Ltd., W. C., and SYKES, W. March 29, 1956 [April 21, 1955], No. 11488/55. Class 23 [Also in Group XL(a)] An insulated ionizing negative electrode is mounted coaxially within a cyclone separator, the electrode comprising a helical portion 20. The electrode may include a plate 19 supported by a rod 17 and have an extension 21 entering the cylone inlet 12. The apparatus is used to separate conductive particles from a gas stream, and may be used to separate non-conductive particles by introducing into the stream a substance which renders the particles conductive or induces their agglomeration under ionizing conditions.
Patent GB-423000-A (GB)
Title: Improvements in automatic regulators
IPC: G05D23/12
Filed: 1934-04-17
Abstract: 423,000. Automatic regulators. WING- FIELD, B. T., Brooklyn, The Green, West Drayton, Middlesex. April 17, 1934, No. 11535. [Class 135] In an automatic regulator in which a lever is actuated by an impulse to control an orifice to regulate the pressure of an operating fluid, the lever is arranged between two opposed pressure release openings 5 and 6, one of which is closed by an interchangeable cap 6a according to the direction of working required, the other being controlled by the lever. The impulse actuates the lever 1 through a diaphragm 11, the lever being pivoted at 2a and balanced by a spring 10. The diaphragm 11 is carried on an arm 12 the position of which can be adjusted by a cam 15 upon which it is held by a spring 14. A valve 8 serves to adjust the supply of operat. ing fluid.
Patent GB-1490756-A (GB)
Title: Method of and apparatus for open-end spinning yarns from staple fibres
IPC: D01H4/32
Filed: 1975-03-20
Abstract: 1490756 Open end spinners with multiple sliver feed VYZKUMNY USTAV BAVLNARSKY 20 March 1975 [3 April 1974 (3)] 11552/75 Headings DID DIF and DIN An open-end spinning apparatus comprising a spinning rotor I and a fibre separating device, is provided with means for supplying to the fibre separating device at least two slivers 12 out of which separate flows of separated fibres are formed, these fibres being united to form a single combined flow 11 of separated fibres before entering the spinning rotor 1. The fibre separating device comprises at least one combing-out cylinder 7 received in a cavity 6, the rotational axis of the cylinder 7 and the axis of the rotor 1 being skew lines. In one embodiment, Fig. 1, two combing- out cylinders 7 are provided and protrude into a common fibre feeding duct 8 partially penetrating into the interior of the rotor 1. Two slivers 12 are fed to the cylinders 7 by devices each comprising a positively driven feed roller 14 and a pressure element 15 or 16. The element 15 comprises a shoe and the element 16 a second roller. Condensers 13 shape the slivers 12 to approximately rectangular form. The separated fibres are stripped from the cylinders 7 in zones 10 and are combined in the duct 8. In another embodiment, Fig. 2, two or more slivers 12 are each fed from a condenser 13 by a driven roller 14 and a pressure shoe 15 to a single cylinder 7. The two separated fibre flows are united downstream of the second feed device to form a single flow in the duct 8. In a further embodiment, Fig. 3, two sideby-side fibre feeding devices cooperate with a single cylinder 7 and are formed by two coaxial driven rollers 14 and two coaxial pressure rollers 16. The condenser 13 comprises two side-by-side shaping ducts. More than two slivers may be combined using as many coaxial feed and pressure rollers and condenser ducts as required. In a modification, Fig. 6 (not shown), the condenser (13) comprises individual sections and the feed roller (14) comprises grooved sections having unaligned grooves. In another modification, Fig. 8 (not shown), the coaxial pressure rollers (16) are individually spring loaded. In a still further embodiment, Fig. 4, a single feeding device, comprising a driven roller 14 and a pressure shoe 15 having a fork 17 for guiding two separate slivers, cooperates with a single cylinder 7. The condenser 13 has two shaping ducts. In a modification, Fig. 7 (not shown), a single feed roller (14) is provided but is engaged by two separate spring-loaded shoes 15, the pressure of which is adjustable. In any embodiment other than those of Figs. 1 and 2, the cylinder 7 may be provided with a surface of saw-teeth 18, Fig. 9, and is divided into two sections 19 having differently shaped teeth. In any embodiments, the slivers may be of different fibre types, e.g. slivers of cotton and viscose rayon are specified.