baber/WOPTO huggingface dataset:
Patent GB-1008348-A (GB)
Title: Improvements in cathode ray tubes
Inventor: BOOTH GEORGE ARTHUR
IPC: H01J29/82
Filed: 1963-07-23
Abstract: 1,008,348. Cathode-ray tubes. RANK BUSH MURPHY Ltd. July 15, 1964 [July 23, 1963], No. 29145/63. Heading H1D. In a cathode-ray tube a tubular electrode 11 is secured to at least three insulating rods 12, 13, 14 by straps 15, 16, 17, Fig. 2, and 18, 19, 20, Fig. 3, applied tangentially to the electrode and arranged in axially spaced sets as shown in the Figures. In another embodiment there are four insulating rods with two straps in each set applied to the electrodes in each circumferential direction. The strap arrangement is applied to the anode and shielding electrodes of the electron gun.
Patent GB-536138-A (GB)
Title: Improvements in or relating to supports for steam generator and like tubes
IPC: F22B37/20
Filed: 1939-11-02
Abstract: 536,138. Tubular heat exchangers. SULZER FRERES SOC. ANON. Nov. 2, 1939, No. 29221. Convention date, March 18. [Class 64 (iii)] In a boiler tube support comprising a slotted member 2 welded longitudinally tc the tube 1, the member has one or more slots 5 each made of greater depth than width in order to increase the elasticity of the support so that stresses caused by expansion of the tube are decreased. The strips at the sides of the slots are about the same width as the thickness of the wall of the tube.
Patent GB-1445612-A (GB)
Title: Foot-operated control device
IPC: A61C1/00
Filed: 1973-06-20
Abstract: 1445612 Actuation of switches & rheostats; electric motor control SIEMENS AG 20 June 1973 [26 June 1972] 29391/73 Headings H1N and H1S [Also in Division H2] In a foot-operated control device as used for actuating dentral apparatus the foot application means 3 of an actuating member 2 projecting out of a housing 1 is movable in a horizontal plane along a predetermined curved path on either side of a central basic position to actuate a rheostat control element and switches. The actuating member is T-shaped and the crossarm extremities determine two pivotal positions 14, 15 of an articulated mounting linkage comprising the crossarm 10 of the actuating member 2, two movable link elements 11, 13 of equal length and an element 12 fixed to the base 18 at pivotal locations 16, 17 which in turn are disposed nearer to the foot application means 3 than are the locations 14, 15. The elements 11, 12 are preferably parallel to one another as in Fig. 3 but the linkage may be trapezial with the fixed element 12 as the longer of the two parallel sides. The fixed element is also T-shaped having a limb 19 extending within the housing and carrying two switches 26, 27 separately actuated by depressible actuating elements 6 and 7 as well as mounting a rotary type potentiometer rheostat 20 with a central tap which is driven by a gearwheel 22 from a pinion 23 attached to an arm 21 pivoted at 24 in slotted engagement with a drive pin 21 secured to the actuating member 2. The rotating portion of the potentiometer carries a cam disc 34 arranged with a notch 35 and a recess 36 which cooperate with the actuating elements of two switches 30, 31. At the end operating positions of the actuating member 2 and actuated by the link elements 11 or 13 are further switches 28 or 29, the linkage being detented in these end positions and by spring loaded bull mechanism 37 which engages with grooves in the baseplate 18. Another switch 32 is provided inside the housing and can be actuated by downward pressure on a tiltable footplate 4. The potentiometer is for the control of speed of an electric motor such as for a dental drill and the functions of the various switches are described with reference to Fig. 4 (not shown) [in Division H2J]- Specifications 1,445,613 1,445,614 1,445,615 and 1,445,616 are referred to.
Patent GB-1015551-A (GB)
Title: Box and carton handle
IPC: B65D5/465
Filed: 1963-07-25
Abstract: 1,015,551. Handle for cartons. J. H. VINEBERG. July 25, 1963 [Aug. 10, 1962], No. 29436/63. Heading B8P. A handle member for cardboard boxes has a base portion with side tabs 19 (Fig. 1) and a handle portion 11 hinged thereto with a flap 15 cut to form part of the base and an additional strengthening portion 20 with a slit through which the handle is passed prior to attaching to a box. An additional flap 16 may be cut from the hand hole 14 to give a folded edge to the handle. The handle portion may be passed through an additional strengthening portion 20 prior to attaching to a box. In an alternative embodiment (Fig. 2, not shown) a blank is folded about a central line 23, tabs 33 overlie the opposite base portion, flap 29 overlies base portion 36 and flap 31 is passed through the hand hole. The handle member may be made from two separate blanks identical with the opposed halves of Fig. 2 or from a single blank in which the two halves are joined along the lines 89 or 38 so that in the latter case tabs 32, 33 overlie each other. When the halves are joined along the lines 89 so that tabs 32, 33 overlie each other these tabs may have extensions which are folded between the main tab portions.
Patent GB-889260-A (GB)
Title: Process for the preparation of stable resin syrups
Inventor: CHALMERS DAVID
IPC: C08G12/34
Filed: 1959-08-28
Abstract: A process for preparing a resin syrup comprises heating melamine and dicyandiamide with an aqueous solution of formaldehyde and methanol having a pH within the range 6,5 to 10, at a temperature between 70 DEG C. and the reflux temperature of the reactants, to a desired degree of condensation beyond the 25 DEG C. cloud point and then cooling the mixture.  The molar ratio of melamine to dicyandiamide is from 1:1 to 5:1; that of formaldehyde to melamine and dicyandiamide together is from 2:1 to 4:1; and that of methanol to formaldehyde is from 1:3 to 2:1. In an example methanol (12,5 moles), formalin (containing 12 moles of formaldehyde were brought to pH 7,5 by means of sodium hydroxide and heated to 75 DEG C.; melamine (3,2 moles) and dicyandiamide (0,8 moles) were added.  The mixture was heated for 45 minutes beyond the 25 DEG C. cloud point and was then concentrated under vacuum to yield a storable syrup.
Patent GB-393167-A (GB)
Title: Improvements in and relating to skips
IPC: B61D9/02
Filed: 1932-10-21
Abstract: 393,167. Tipping-skips. SOC. ALGERIENNE DE CONSTRUCTION D'OUTILLAGE ET DE MACHINE AGRICOLE, 1, Chemin de Gascogne, Algiers, Algeria. Oct. 21, 1932, No. 29498. Convention date, Oct. 27, 1931. [Class 78 (iv).] A skip A is fitted with a pair of rollers 1 moving on guides for tipping in either direction, and means is provided for braking the tipping motion by storing up energy for righting the empty skip and for locking the skip in its upright position. As shown, a roller 2 on the member 1 normally rests in a groove 12 and during tipping moves along a guide 13 and turns a lever 3 around its pivot P against the pull of a spring 6 until the lever engages a stop 5. The lever is held in this position by a pawl 7 engaging teeth 12a on the lever 3. On releasing the pawl by a lever 8, the skip is returned by the spring 6. The skip is held in the upright position by a catch lever 9. The mechanism is duplicated for tipping in the other direction.
Patent GB-927285-A (GB)
Title: A new or improved process for the manufacture of microporous metallic membranes
Inventor: LACROIX ROGER
IPC: C22C1/08
Filed: 1959-08-28
Abstract: Microporous membranes are produced by forming a foil from an alloy consisting of one or more metals of a first group and at least 40 atomic per cent of one or more metals from a less noble group, and chemically dissolving out one constituent of the alloy by attacking it with a solution to which has been added an oxidation-reduction reagent having a redox potential greater than the dissolution potentials in the alloyed state of the metals of the second group. The redox potential may be less than the dissolution potentials of the metals of the first group, in which case the dissolution is either allowed to go to completion or stopped when sufficient solute has been removed or it may be greater than the said dissolution potentials, when the reaction is stopped after the appropriate amount of the second group metals has been removed.  This point may be determined by weighing the membrane or by analysis of the solution.
Patent GB-1109793-A (GB)
Title: Releasable fasteners
Inventor: GRIFFITHS ALAN ROGER
IPC: F16B37/04
Filed: 1965-07-13
Abstract: 1,109,793. Screw sockets. ITW Ltd. 11 July, 1966 [13 July, 1965], No. 29701/65. Heading F2H. [Also in Division E2] A pin-and-socket fastener comprises a pin member 10 which has a head 12 and shaft 14, the free end portion of the shaft being screwthreaded, and a socket member 18 which includes a boss 20 having a socket 22 passing through it, legs 24, 26 extending axially from the boss and surfaces 34, at the junction of the boss and the legs, facing towards the free ends of the legs and extending radially outwards from the legs, the space between the legs lying in line with the socket, one of the legs being-resiliently flexible in a radially outward direction by virtue of its cantilever attachment to the boss, one of the legs having a projection 30 which protrudes into the space between the legs and has a form such that it can lie within the groove of the threaded portion of the shaft. As described the socket member at least, is made of a resilient plastics material and the pin member is either of the same plastics material in which case, as shown, it is moulded in one piece with the socket member, the connection being broken when the fastener is put into use. As shown, both legs are resiliently flexible and each has a said projection to engage the threaded portion of the pin member; when the threaded portion engages the projection it forces the leg slightly apart; in addition, however, the surfaces 38, 40 of the legs normally diverge from the junction with the boss and the legs are each formed with a projecting part 48, 50, the projecting part having surfaces parallel to and facing the shoulder, to impede withdrawal of the legs, and inwardly sloping surfaces 52 to assist insertion of the legs into an aperture. The overall form of the legs radially, is substantially square or rectangular, to resist rotation of the fastener in the aperture. When the socket member is located securely in the aperture the boss connects as a spacing member to hold something between the pin member head and itself and away from the surface through which the legs extend or the fastener can be used to hold two members together and spaced apart from the surface through which the legs extend, i.e. holding both between the head and the boss; the boss can also serve as a pivot for a link.
Patent GB-244580-A (GB)
Title: An adjustable, heat-resisting baking sheet for domestic ovens
IPC: F24C15/00
Filed: 1924-12-11
Abstract: 244,580. Bissell, M. A. Dec. 11, 1924. Supports for articles to be heated; heat-distributors.-A baking-sheet for use in domestic ovens is made in expanding sectional form of heatresisting material. That shown comprises three sections formed of slag wool, asbestos, or the like encased in sheet metal, the two outer sections a sliding on the frame b towards and from the centre section, in order to regulate the heat passing through the spaces beween them. The movement may be effected by mechanism, that shown comprising a lever d pivoted on the centre section and connected by links e to the moving sections. 160,191. Hewson, F. T. Jan. 20, 1920. Ovens; casings; doors.-Inner and outer casings 1, 2, Fig. III, spaced by heat-insulating distance pieces 3, have their edges secured together without metallic contact or overlapping, the gaps be. tween the metallic parts being bridged by non- conducting connecting pieces 4 strengthened by backing-strips 9. The strips &c. are secured together, without metallic contact, by rivets or bolts or otherwise. As shown, there are two plates 7, 8 thus connected between the inner and outer casings, and one of thes plates 8 forms a bevel seating for the oven door. Inner and outer plates 16, 17, Fig. IV, of the door are similarly cannected. A window comprises a pane 15 held by clips 23 in the door. Above the window is a vent consisting of coaxial tubes attached to the inner and outer plates and separated by non-conducting material.
Patent GB-948135-A (GB)
Title: Improvements relating to organic silicates
Inventor: EMBLEM HAROLD GARTON
IPC: C07F7/04
Filed: 1960-08-29
Abstract: In a two stage process for making an organic silicate hydrolysate by making a mixture of a first silicate, water and an acid, allowing hydrolysis to proceed, and subsequently adding a second silicate thereto, one silicate is an ethyl silicate and the other is an isopropyl silicate, or both are isopropylsilicates. The silicates used preferably have a silica content of at least 30% by weight. suitable acids are sulphuric and hydrochloric. In a typical example (2) isopropyl silicate (38% SiO2) was added to a mixture of isopropyl alcohol, water and 2N HCl solution; the mixture was stirred until homogeneity was attained, and then divided into two parts; to one part isopropyl silicate was added, and to the other ethyl silicate was added; on standing overnight, no sludge developed, and after standing for 3 days, both solutions had increased in viscosity. Uses: for binding refractory materials.  Specification 948,132 is referred to.
Patent GB-679488-A (GB)
Title: Improved belt lap supports for conveyors
IPC: B65G39/10
Filed: 1949-11-22
Abstract: 679,488. Endless-belt conveyers. LOWE, J. H., and TOPHAM, A. ,Feb. 22, 1951. [Nov. 22, 1949] No. 29795/49. Class 78 (i). A support for the lap of an endless conveyer belt consists of a rod or bar which extends immediately below the belt to support it and has projecting laterally from it, at least one angular or hook member constructed for releasable engagement with a fixed support member. The figures show the application to a conveyer belt extending lengthwise of the coal face in a mine, the coal being conveyed on the lower lap 1a, Fig. 1, which is supported on idlers. The upper lap is supported by member 8 on roof-supporting members consisting of a post 3 on each side of the belt and a cross bar 5 of corrugated cross section resting on wedges 4 on the posts 3. In one form Fig. 8, each member 8 consists of a metal rod 10 having one end bent to form parts 11, 12, the part 12 being threaded through a hole formed by one of the hollows 6, or 7 of the bar 5 and the wedge 4 of the near side post 3. In a modification, Fig. 10, an additional cranked part 14 is pivotally mounted on the rod 10 for engaging the opposite post 3. The rod 10 and at least one of the parts 11, 16 may be adjustable in length. In Fig. 6, a pair of cranked members 20, 21 are pivotally mounted on the rod 18 by means of members 26 and retained by enlargements 19. They may also be pivotally mounted about the axes of the parts 24, 25, each being formed with a neck extending through a hole in one of the members 26 and with a head 27. In Fig. 7, the support consists of a bar 28 with angle members 29 freely mounted thereon, and hooks 30 pivotally connected to the members 29 at 31 and engaging in the recesses 33 in the roof bars 34.
Patent GB-617566-A (GB)
Title: Improvements in or relating to circuit-arrangements for interrupting electric currents by means of a gas- or vapour-filled discharge tube
IPC: H02M1/06
Filed: 1946-10-07
Abstract: 617,566. Switching systems for consumption apparatus; converting. PHILIPS LAMPS, Ltd. Oct. 7, 1946, No. 29886. Convention date, Jan. 26, 1943. [Classes 38 (ii) and 38 (iv)] To prevent re-ignition, due to residual ionization, after extinction of a gas- or vapourfilled discharge tube for interrupting a high voltage and high power circuit, as for instance an inverter circuit, the current passed by the tube is transferred at the moment of extinction to a hard valve in parallel with the tube and which after short period, sufficient for the filling of the tube to de-ionize. under the relatively low anode-cathode voltage then obtaining, is rendered non-conducting to interrupt the circuit. As shown in Fig. 1, a load 2 is supplied from a high voltage D.C. source 1 through a mercury cathode discharge tube 3 having an ignition electrode 6. In parallel with the tube 3 is a hand triode 7 and an extinguishing circuit for the tube comprising in series a condenser 12 charged from a source 11, a smaller condenser 14 and an auxiliary discharge tube 13 having an igniter 17. To interrupt the load current, triode 7 is rendered ready for conduction by removal of a blocking grid bias; igniter 17 is then energized to discharge the condensers 12, 14, thereby bringing about a momentary reduction, or reversal, of voltage across the tube 3 which consequently extinguishes. The triode then takes over the load current and limits the anode voltage rise of tube 3 to a value, say, 500 to 1000 volts, insufficient to cause re-ignition during deionization. The grid blocking voltage is subsequently re-applied to triode 7 to interrupt the load circuit. The full source voltage then appearing across the extinguishing circuit is absorbed mainly by the small condenser 14. The hand valve may have magnetic, instead of grid, control. Two sets of tubes and valves may be used back-to-back for the cyclic switching of alternating current.
Patent GB-1142659-A (GB)
Title: Improvements in or relating to cap devices for closing fountain pens and the like
IPC: B43K23/12
Filed: 1966-07-04
Abstract: 1,142,659. Writing instruments. LE FOYER ET CIE. 4 July, 1966 [21 Jan., 1966], No. 29890/66. Heading B6P. A writing instrument point protector comprises a metal cap having three circumferentially spaced internal projections 24 at the entrance thereof, which "snap" into a peripheral groove 12 on the instrument body 11, when placed thereon. In the case of a fountain pen, a polyethylene lining 30 is provided inside the cap, which comprises a cylindrical body 31 closed at one end with a truncated-conical portion 32. The projections 24 may be obtained by driving three balls into the outer portion of the cap.
Patent GB-878471-A (GB)
Title: Improvements in or relating to transistor electric amplifiers
IPC: H03F1/30
Filed: 1958-09-18
Abstract: 878,471. Protective cut-out arrangements. GENERAL MOTORS CORPORATION. Sept. 18, 1958 [Sept. 27, 1957], No. 29897/58. Class 38 (5). [Also in Groups XXXVI and XL (c)] Fig. 2 shows an audio amplifier stage having a transistor 18 of which the emitter is fed from the H.T. supply via a fused resistor 13. This element as shown in Fig. 1 comprises a resistance element 2 of positive temperature coefficient wound on an insulator core 4 for example of fibre-glass, a brass ring 6 acts as a terminal and the resistance element is surrounded by an insulator sleeve 10. The whole is mounted in a ceramic case 12 filled with potting material 16. Any change in ambient temperature which causes an increase in collector, emitter current is compensated by the positive temperature coefficient of the element 13, but if the emitter current exceeds a predetermined value the resistor 13 fuses thus protecting the transistor. Similarly should the transistor develop an emitter to collector short during normal operation, the resistor 13 fuses and protects the choke 28 and the coil 25 of the speaker.
Patent GB-1329798-A (GB)
Title: Preservation of beverages
IPC: C12H1/14
Filed: 1972-06-26
Abstract: 1329798 Preserving beverages F & M SCHAEFER BREWING CO 26 June 1972 [13 July 1971] 29903/72 Heading A2D Malt beverages are preserved against undesirable microbial growth by separately admixing with the unpasteurised finished beverage (A) a compound of formula: wherein X is a hydrogen, alkali metal or alkaline earth metal atom, n is an integer equal to the valency of X, and R is a heptyl group, and (B) pyrocarbonic acid diethyl ester. (A) is preferably used in 8 to 10 ppm wt/vol., and (B) in 10 to 50 ppm wt/vol. (A) is preferably mixed with the beverage before (B). (A) and (B) may be added as stock solutions, dissolved in suitable solvents e.g. absolute alcohol.
Patent GB-538828-A (GB)
Title: Improvements in or relating to record-strip controlled single-typecasting and composing machines
IPC: B41B7/04
Filed: 1939-11-15
Abstract: 538,828. Type-making machines. BOOTH, J. B. S., and MONOTYPE CORPORATION, Ltd. Nov. 15, 1939, No. 30124. [Class 100 (iii)] Moulds, low-quad. Relates to means for casting low quads by means of a divided mouldblade, in which the cut-off section of the blade is operated by a lever I, Fig. 1, and two pivoted actuators D, E, one or the other of which is operated by a control-lever C, Fig. 3, the position of which is determined by special matrices in the die-case, as described in Specifications 22303/13, [Class 100 (iii)], and 430,153. According to the invention, the control-lever is positioned by an air-motor governed by the record-strip. The control-lever C, which is horizontally movable on a vertically rocking arm J of the machine, is positioned by a pivoted setting- member B, which is caused to occupy one or the other of two positions by a motor A having a single-acting piston, to which air is admitted by a signal in the record-strip, the piston being moved in opposition to a spring. As the arm J carrying the control-lever C rises, the lever is moved into one position or the other by the setting-member B. Specifications 184,983, [Class 100 (iii)], and 354,633 also are referred to.
Patent GB-843364-A (GB)
Title: Improvements in electrical pulse circuits
Inventor: DOUGLAS WILLIAM SHOLTO
IPC: H04Q3/00
Filed: 1957-09-25
Abstract: 843,364. Automatic exchange systems. ERICSSON TELEPHONES Ltd. Sept. 19, 1958 [Sept. 25, 1957], No. 30140/57. Class 40 (4). [Also in Group XL (c)] A pulse train is inspected by causing it to set to zero a counter which is continually registering the input of a source of clock pulses, the counter being such that if the pulse train allows it to register more than a given number of clock pulses an alarm is set off. A two-stage counter 11, 12, is illustrated and clock pulses applied to terminal 14 fire tube 11 to prime tube 12 and will fire tube 12 with a subsequent pulse to operate alarm relay F unless continually inhibited by a pulse train applied to terminal 16 to fire tube 13 and extinguish tube 11. If more counter stages than two are employed the repetition rate of the clock pulses is increased accordingly as compared with the pulse train on terminal 16.