baber/WOPTO huggingface dataset:
Patent GB-841405-A (GB)
Title: Aperture mask treatment to prevent cathode poisoning
IPC: H01J29/07
Filed: 1958-02-20
Abstract: 841,405. Cathode ray tubes. CORNING GLASS WORKS. Feb. 20, 1958 [Feb. 25, 1957], No. 5567/58. Drawings to Specification. Class 39(1). [Also in Group XXIII] A perforate shadow mask, for selectively transmitting electron beams in a cathode ray tube and consisting of a thin sheet of glass having a plurality of substantially uniform perforations extending through the sheet, is subjected to a hydrogen-containing atmosphere at elevated temperatures to render the glass capable of bombardment with electrons without appreciable evolution of cathode poisoning gas, such as oxygen, during the life of the tube. The mask is fired in a reducing atmosphere containing at least 25% hydrogen, the remainder consisting of nitrogen. The temperature used will be of the order of 100C below the glass softening point. Specifications 699,897, 752,243 and U.S.A. Specification 2, 625, 734 are referred to.
Patent GB-258165-A (GB)
Title: Improvements in apparatus for evaporating, distilling or concentrating liquid
IPC: B01D1/28
Filed: 1926-02-27
Abstract: 258,165. Soc. des Condenseurs Delas. Jan. 18, 1923, [Convention date]. Vapours. utilizing for effecting further evaporation, multiple-effect apparatus ; injectors. - A steam-jet ejector 12 for compressing the vapours evolved in an evaporator 6 and passing them through a pipe 14 into the heating space 5 is provided round the compression space 13 with a jacket 15 through which fresh liquid from a pipe 17 is passed on its way to the evaporator. The liquid becomes preheated, and the action of the steam-jet ejector is rendered more stable. A second preheater may be used after the ejector or arranged in parallel with the ejector. In the case of multiple-effect apparatus, the ejector withdraws vapours from the final effect and compresses them into the first effect.
Patent GB-823775-A (GB)
Title: Improvements in or relating to electric heater assemblies
Inventor: WEBER VICTOR
IPC: H01H37/36
Filed: 1956-02-23
Abstract: 823,775. Automatic temperature-control systems; control systems for heating resistors. ROBERTSHAW-FULTON CONTROLS CO. Feb. 23, 1956 [July 12, 1955], No. 5657/56. Class 38 (4). In an automatic temperature control system for an electric hot-plate, of the kind in which the heater elements are energized from a single phase and neutral three-wire supply under the control of a thermostat responsive to the temperature of the base of a cooking pot placed on the hot-plate; the heater element is divided into two parts, one part of which is connected either across the full supply voltage or the phase/neutral voltage by changeover contacts controlled by the manual temperature datumsetting control. A spring-loaded bulb 18 senses the temperature of the cooking vessel on the hot-plate and actuates a capsule 28 to first open contacts 48, 50 as the temperature selected by knob 36 is approached, and then open contacts 56, 58 at the selected temperature. Opening contacts 48, 50 disconnects a first heater element 14, which has served to bring the cooking vessel rapidly up to temperature, and leaves a second element 12 to maintain the selected temperature by intermittent. energization over contacts 56, 58. The temperature selector knob 36 not only serves to adjust the datum position of the capsule 28, but also has a cam 66 which opens a main switch 72 in the " Off position; a cam 88 which actuates a change-over switch 96 in the "Medium" position; and a cam 112 which momentarily opens the main switch 72 at the time that switch 96 changes over to prevent the latter from sparking. The change-over causes the element 12 to be supplied between one line and neutral of a single-phase and neutral 3-wire supply for temperatures up to " Medium " and between lines thereafter. In a modification, Fig. 3 (not shown), cam 112 is omitted and a resistor in the line connection to switch 96 reduces arcing.
Patent GB-525239-A (GB)
Title: Improved welding bar
IPC: B23K35/02
Filed: 1939-02-20
Abstract: 525,239. Uniting by fusion. SCHELLER, R. Feb. 20, 1939, No. 5669. Convention date, April 13, 1938. [Class 83 (iv] A welding-bar consists of a bar of cast-iron cast steel or similar material not deformable in the cold state and of open profile form to contain flux or deoxidant, which is sealed by a cohesive plastic layer the fusing point of which is higher than that of the filling but lower than that of the bar. The covering layer may consist of cellulose or oil varnish filling materials such as those containing lead white, oil of turpentine, linseed oil varnish, chalk, umber &c. in addition to cellulose varnish or oil varnish. Fig. 1 shows a channel section bar a containing a flux filling b and a covering layer c. The bar may also be of double T-form or of S or Z-form. The open profile may extend over the entire length of the bar or at spaced points.
Patent GB-932127-A (GB)
Title: Improvements in or relating to work-benches
Inventor: OAKES GEORGE TAYLOR
IPC: B25H1/00
Filed: 1960-02-18
Abstract: 932,127. Work-benches. TAYMAR Ltd. Feb. 7, 1961 [Feb. 18, 1960], No. 5712/60. Class 61. A work-bench adapted to be readily dismantled comprises a wooden top 5, a pair of wooden end supports 14 adapted to be received in transverse channels at the under side of the top, a wooden tie-bar 24 having reduced ends adapted to be fitted into and project through slots 22 in the supports 14, and wooden wedges 26 adapted to be driven through holes in the tie bar 24 to secure the supports in upright position. The working surface 6 is reinforced by depending end pieces 7 and pairs of cross battens 8, the end supports being accommodated in the channels between the battens. The battens 8 extend rearwardly beyond the working surface 6, their extremities being connected by a strip 9 which forms the back wall of a well 10 having a floor 11 and bounded in front by a filling piece 12. The channel between the cross battens 8 is cut away at 15 to fit against the filling piece 12 and well floor 11. Upstanding dowels 18 on the supports engage in sockets in the bench top 5. A lid 27 provided with a tool rack 28 is hinged to the rear wall of the well. A drawer guided for fore and aft movement beneath the bench top 5 may be provided and a vice 32 may be mounted at the front edge of the bench top.
Patent GB-110109-A (GB)
Title: An Improved Bottle.
Inventor: STAPLES SARAH SUSANNAH
IPC: A45F3/18
Filed: 1917-04-24
Abstract: 110,109. Staples, S. S. April 24, 1917. Stoppers, connexions to prevent loss of; stoppers, internal.-The stopper c of a water-bottle is connected by a chain with a disk c<2>, which prevents outflow of liquid if the bottle is upset and also prevents loss of the stopper.
Patent GB-1362264-A (GB)
Title: Dynamo electric machines
IPC: H02K11/04
Filed: 1971-03-02
Abstract: 1362264 Brush gear of dynamoelectric machines JOSEPH LUCAS (INDUSTRIES) Ltd 18 Feb 1972. [2 March 1971] 5860/71 Heading H2A In a dynamo electric machine having rotary contacts, e.g. slip-rings 12, a wiring arrangement supported on an insulating base, e.g. a printed circuit board 14 to which arrangement a plurality of machine circuit components 15 are connected, and brush gear, the latter comprises a housing 16 provided with bosses 23 on which are located respective ones of a plurality of springs 27 which urge into engagement with the contacts a plurality of brushes 22, 25, and a plurality of fixing means, e.g. electrically conductive bolts 28, 29 extending between the housing 16 and base and passing through respective bosses 23 to secure the base to the housing, each such means also providing an electrical connection between an associated brush and a part of the wiring arrangement. The brushes are slidable, respectively in a channel 21 defined by a rectangular portion 19 of the housing which is of insulating material, and an insulating flanged channel 24 located by the bosses 23.
Patent GB-1181435-A (GB)
Title: Adsorbent for Treating Fermented or Fermentable Liquids
IPC: C12H1/048
Filed: 1967-02-07
Abstract: 1,181,435. Clarifying beer. BRAUEREIINDUSTRIE A.G. Feb. 7, 1967 [Feb.11, 1966; Dec.12, 1966], No.5862/67. Heading C6E. [Also in Division C1 ] An absorbent, prepared from expanded montmorillonite clay (see the C1 Division Abridgment) is used in the treatment of beer as a protein content stabilizing control and to reduce the low temperature turbidity of the beer.
Patent GB-954915-A (GB)
Title: Method of stabilising the surface of semi-conductor bodies comprising pn-junctions
IPC: H01L21/18
Filed: 1961-02-17
Abstract: 954,915. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Feb. 17, 1961 [Feb. 20, 1960; March 19, 1960], No. 5950/61. Heading H1K. A silicon or germanium device containing a PN junction is treated by evaporating on to the surface of the device a layer of high resistivity germanium or silicon respectively so as to cover the junction. In one arrangement the surface of a silicon rectifier comprising a diffused PN junction is cleaned by etching or subjection to a glow discharge and the rectifier mounted on a rotatable support in an evaporation chamber containing a crucible of germanium. After evacuation of the chamber the rectifier is maintained at room temperature and moved relative to the crucible by rotation of the support while the germanium is evaporated. A thin uniform layer of amorphous germanium 50-500 Š thick is thus formed on the device which increases the breakdown voltage by a factor of 5 and stabilizes it. A protective layer of thermosetting resin is then applied to the amorphous layer. In an otherwise similar method high resistivity silicon is evaporated from a tungsten coil or beryllium oxide crucible on to a PN germanium device.
Patent GB-465383-A (GB)
Title: Improvements in pianofortes
IPC: G10C3/06
Filed: 1936-02-28
Abstract: 465,383. Pianofortes. MORLEY & CO., Ltd., R., and MORLEY, F. D. Feb. 28, 1936, No. 6028. [Class 88 (ii)] The ribs b are arranged on the same side of the wooden soundboard a as the strings and the bridges c, which latter may rest flat on the ribs or be notched to receive them partly, as shown, or wholly. On the opposite side is arranged a slip f, underlying and conforming to the shape of the bridge c. The frame may be so arranged as to allow the bridges to have a gradually increasing height from the treble to the bass.
Patent GB-676627-A (GB)
Title: Manufacture of reinforced concrete
IPC: B28B23/04
Filed: 1949-03-04
Abstract: 676,627. Electricallycured concrete. DOWSETT ENGINEERING CONSTRUCTION, Ltd., and BARBER, R. S. V. March 6, 1950 [March 4, 1949], No. 6033/49. Class 22 The setting and hardening rate of concrete which is reinforced with non-bonded wires is increased by heating the concrete internally during the setting period or during both setting and hardening, a heating current being passed through the wires which thus serve to heat the surrounding concrete. The concrete may be cast in a mould which has fixed sheaths to accommodate the wires. Current flow is commenced as soon as casting is complete, the concrete being maintained at a temperature of about 100‹C at the early stages of curing. For concrete made under pressure higher temperatures may be employed. Alternatively the mould is provided with cores which are withdrawn when the concrete has set sufficiently, the wires being threaded through the holes thus formed and the heating process commenced. The concrete may be prestressed by tensioning the wires either whilst hot or when they have cooled and anchoring them in a conventional manner. Specification 580,960, [Group X], is referred to.
Patent GB-575725-A (GB)
Title: Improvements in or relating to infinitely variable speed gears
IPC: F16H9/10
Filed: 1944-04-01
Abstract: 575,725. Expanding - wheel chain - gearing. BOOTH, A:, and COLES, F. H. April 1, 1944, No. 6107. [Class 80 (ii)] [Also in Group XXV] A variable-speed expanding chain-wheel comprises axially adjustable conical flanges 1, having radial slots 4, in which slide treadmembers 5, which house layers of loose axial rollers 11, into which internal teeth 13 of the chain 12 may penetrate so as to displace the rollers and form complementary positivedriving tooth spaces. The rollers may be inserted into flanged housings through a plugged side-opening 15 or may be retained in an unflanged housing by a suitable overlying spring clip. The tread-members 5 may be retained in the pulley-slots 4 by washered screws 8, by dovetailed slots or by guide-rods parallel to the slots. The chain 12 comprises pairs of single- or double-toothed links 33, alternating with plain links 34 on pivot-pins 32, the ends of which engage the faces of the pulley flanges or slot-filling lugs on the members 5, to support the chain radially on the pulley. For part of their length, the chain pins 32 are turned eccentric on their side-faces only, so as to be of oval section over this part of their length, thus forming lateral recesses into which the links are pulled by chain-tension so as to retain the links against axial movement on the pins. The oval section results in the bearing- radius of the pins being the same as that of the holes in the links, which holes are circular and of the same diameter as the ends of the pins. Lubricant spaces are also formed thereby. In a modification, the pins are turned eccentric in this manner so as to be of oval section throughout their length, the links being retained by split-pins.
Patent GB-792883-A (GB)
Title: Improvements in or relating to ploughs
Inventor: WARD PETER THOMAS
IPC: A01B3/36
Filed: 1956-02-28
Abstract: 792,883. Agricultural implements. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. Oct. 2, 1956 [Feb. 28, 1956], No. 6169/56. Class 6(1). A two or three furrow plough of the type adapted to be used with three point mounting attachments 7, 11 of a tractor 8 comprises a frame 1 laterally adjustable on a cross shaft 6 and a head-stock 9 adjustably mounted on the frame so that the point of connection of the upper link 11 may be displaced laterally. As shown, the head-stock 9 is pivoted to the frame at its rear end and is provided at the front with a bracket 9a adjustably secured to an arcuate member le of the frame. The head-stock 9 carries a screw 20 for angling the shaft 6 and a screw 13 for operating depth adjusting means. Plough beams 2, 3, 4 are mounted on the frame and the furrow spacing may be adjusted by positioning the beams on either side of the longitudinal frame members, the frame being transversely adjustable on the shaft 6 to suit the furrow spacing. For conversion to a two-furrow plough the frame part 5 together with the beam 4 is removed.
Patent GB-301255-A (GB)
Title: Ferro-concrete poles and towers of the composite type
IPC: E04H12/12
Filed: 1928-02-28
Abstract: 301,255. Chenille, E., Feb. 28, 1928. Reinforced concrete posts; posts of special cross-section.- A reinforced ferro - concrete mast, particularly for carrying electric lines, is cruxiform in section, one or more of the arms of the crosssection diminishing in length from the base of the mast to the top, other arms having a constant length. In the embodiment shown in Figs. 1, 2 and 3, Fig. 2 is a section near the bottom of the mast, and Fig. 3 a section near the top. The web a has one vertical edge and one inclined from the vertical, lateral reinforcements b having constant cross-section. Holes d in the web a serve for handling the pole in transportation &c., and bolts f enter holes d<1> for connecting together masts e, e<1>, Fig. 4. As shown in Fig. 6, a composite mast may be formed by placing masts g round a wood pole h, and bolting the members together. An iron cap is placed on the end of the composite mast. Bracing members of concrete may be placed at different heights. In a modified construction, four masts are braced together, a metal pole being fitted at the top.
Patent GB-536394-A (GB)
Title: Improvements in and relating to propelling plant for aircraft
IPC: F02B37/18
Filed: 1940-04-08
Abstract: 536,394. Motor power plant. BRITISH THOMSON-HOUSTON CO., Ltd. April 8, 1940, No. 6323. Convention date, April 7, 1939. [Class 110 (iii)] The exhaust of an internal-combustion aero engine drives two turbines in parallel: one is used to drive a super-charger and the other is geared to the internal-combustion engine shaft. The banks of internal-combustion engine cylinders 3, 4 have separated exhaust chambers 29, 36, 9, 10, and each turbine has three nozzle chambers. The exhaust chambers 10, 36 are permanently open to the nozzle chamber 26 of the power turbine 12 and the nozzle chamber 33 of the super-charger turbine 11, respectively. The exhaust from the chambers 9, 29 are divided between the two turbines by means of valves 28, 34. Exhaust from the chamber 36 may be opened to waste by a valve 38.
Patent GB-553459-A (GB)
Title: Method of and means for hardening laps in the production of felt
IPC: D04H17/00
Filed: 1942-05-11
Abstract: 553,459. Felt. STREET, W. O. May 11, 1942, No. 6325. [Class 42 (ii)] In the production of felt, wool laps with interleaved sheetings are passed through a succession of co-operating flat hardening machines, H<SP>1</SP>, H<SP>2</SP> in their path from the supply lap stand a to the receiving lap stand a<SP>6</SP>. The flat hardening machines are so spaced or separated that the mechanically actuated oscillating plates h<SP>1</SP>, h<SP>2</SP> of a hardening machine act upon a surface of the felt out of phase with the surface acted upon by the previous hardening machine. Each succeeding hardening machine may exercise a more severe oscillating or hardening treatment upon the felt than the preceeding machine. The wool laps are wetted or steamed in known manner. Specification 536,678 is referred to.
Patent GB-860055-A (GB)
Title: Improvements relating to fluid control valves
IPC: F16K1/226
Filed: 1959-02-24
Abstract: 860,055. Valves. STILLWAGON, C. K. Feb. 24, 1959 [Oct. 21, 1958], No. 6327/59. Class 135. A seat for a valve, such as the butterfly valve shown, comprises a tubular body 12 of resilient material having an annular wall 23 and annular flanges 22 extending radially outwardly from each end of the wall, the inner side of each flange having an annular inturned portion 34, Fig. 4, and the outer side of each flange in its unstressed condition being formed as an outwardly bulging crown or protrusion 33, and the annular wall having an opening 25 through which the stem 29 of the butterfly valve member 13 may be mounted. As shown, the seat is mounted over an annular dovetail 21 of a valve body 11 so that the base line of the crown 33 is substantially in line with planar end faces 19 of the body (Fig. 4), whereby the body, together with the seat, can readily be inserted between opposing pipe flanges 14 without these flanges being widely separated and without unwanted distortion of the seat. On securing the pipe flanges by draw bolts 18, the inturned portions of the seat are squeezed into the dovetail 21 and the body is sealed between the pipe flanges.
Patent GB-766220-A (GB)
Title: Method for the continuous production of tubes from glass and other materials liquefiable in heat
IPC: C03B19/04
Filed: 1955-03-03
Abstract: 766,220. Glass tubing. ZEISS-STIFTUNG, C., [trading as JENAER GLASWERK SCHOTT & GEN.]. March 3. 1955 [March 6, 1954], No. 6333/55. Class 56. Glass tubing is formed by continuously delivering molten metal from the furnace- 1 into a centrifrugal drum 3, the annulus. of glass formed by the centrifugal action being passed through a shaping nozzle 4 which is rotated synchronously with the drum 3. The tubing is continuously drawn from the nozzle 4 by rollers 11. The rollers are driven in the forward direction, re. main stationary, or are driven in the reverse direction (which is necessary when a starting tube has to be inserted at the start of the operations) according to whether a sleeve 7 rotates faster 'than, or the same rate as, or slower than a drum 6 which rotates synchronously with the nozzle 4 and drum 3.
Patent GB-1174813-A (GB)
Title: Improvements in Voltage Regulators
IPC: H02J7/24
Filed: 1967-02-10
Abstract: 1,174,813. Automatic voltage control. ROBERT BOSCH G.m.b.H. Feb.10, 1967 [Feb.12, 1966], No.6458/67. Heading G3R. A voltage regulator for a multi-phase generator 10 having a rectified output on leads 13, 14 comprises thyristors 20, 21 connected to supply the generator field winding 19 from two phase windings S, T of the generator; a comparator 35 which supplies an output voltage proportional to the deviation in the output voltage on lines 13, 14 from a reference voltage defined by a Zener diode 37; a saw-tooth generator including a capacitor 52, a transistor 53 and a resistor 55 which produces an output synchronized to the frequency of the generator 10; and a control switch constituted by a transistor 63 to the base of which is applied a resultant signal formed by superposing the voltage from comparator 35 on the said saw-tooth voltage, the output from this switch being connected over a further transistor 66 to the control electrodes of the thyristors 20, 21. In operation, with the output voltage of the generator below a desired value the resultant signal applied to transistor 63 is such that this transistor and transistor 66 are non-conductive and the potential at the control electrodes of thyristors 20, 21 is sufficient to fire the thyristors, this potential being derived from a voltage divider 69, 70 connected across the output leads 13, 14, and thus a high excitation current flows in the field winding 19. If the output voltage then builds up beyond the predetermined value the resultant signal applied to transistor 63 is such that the transistor 63 and transistor 66 are rendered conductive at a time in the half cycle of applied field voltage dependent upon the variations in the output voltage, the resultant signal being in the form of pulses having a width proportional to said variations, Figs.2 and 3 (not shown) whereby resistor 70 is short-circuited to remove the firing signal from the thyristors 20, 21. Thus, the thyristors 20, 21 operate with phase-angle control to regulate the field current at a value such that the output voltage is maintained constant. A further embodiment, with a modified saw-tooth generator circuit, is described with reference to Figs.4 to 6 (not shown).
Patent GB-101670-A (GB)
Title: Improvements relating to Temporary Binders.
Inventor: GILBERT ALFRED
IPC: B42F3/00
Filed: 1916-05-10
Abstract: 101,670. Gilbert, A. May 10, 1916. Sheets; covers.-Sheets for locse-leaf binders have their binding-edges provided with series of large embossments b in definite relationship to the post-holes in order to maintain accurate alinement of the edges of the sheets. The gripping- jaws also may be provided with similar embossments, or embossed strips, Fig. 2, may be used as liners for the jaws or as intermediate plates between the leaves. The embossments may be in the form of letters, a word, or equivalent distinctive design.
Patent GB-1457185-A (GB)
Title: Apparatus for trasferring substances from one liquid phase to another
IPC: C22B3/02
Filed: 1974-02-14
Abstract: 1457185 Extraction of plutonium KERNFORSCHUNG mbH GES FUER 14 Feb 1974 [15 Feb 1973] 6707/74 Heading G6R [Also in Division B1] The extraction of plutonium from aqueous nitric acid solution into an organic solution of tricaprylmethylammonium nitrate in xylol is described as an example of a process which may be carried out using a particular form of liquidliquid extraction device (see Division B1) wherein two or more phases of differing density are mixed and gravity separated, and one or more of the phases, including the heavier or heaviest phase, is sucked up by an injector device from a vessel containing the separated phases and then atomized and sprayed downwardly back into the vessel.