baber/WOPTO huggingface dataset:
Patent GB-172818-A (GB)
Title: Improvements in or relating to measuring, gauging, setting out and like instruments
Filed: 1920-10-18
Abstract: 172,818. Humpage, A. J., and Finney, W. Oct. 18, 1920. Tools for setting-out work.-Comprises a combination tool for setting out work which may be used as a protractor, depth gauge, marking-out gauge and scribing block &c. The member 1 having at least one straight edge 2 is curved and provided with a protractor scale 18 on one face as shown. The member is provided on each side with a circular recess to accommodate a circular plate 13 the edge of which is split to the centre to receive a rule 19 which may slide relative to or turn with the plate 13. A projection 12 on the plate passes through a hole in the web between the recesses on each face and forms the pivot, being clamped in any adjusted position by a nut 16. The edge 19 of the rule forms the reading edge of the protractor and passes through the axis of the disc. The face of the device in which is located the recess 10 is also provided with a recess 22 square to the edge 2 and in which the rule may lie so that longitudinal motion only of the rule is possible. The device may be bifurcated at 7 to receive the rule, the latter being provided with a slide and scriber, a fine adjustment device also being fitted. Specification 162,048, [Class 106 (ii), Dynamometers &c.], is referred to.
Patent GB-1445046-A (GB)
Title: Polarizing microscopes
IPC: G02B21/06
Filed: 1974-07-02
Abstract: 1445046 Polarizing microscopes AMERICAN OPTICAL CORP 2 July 1974 [2 July 1973]  29368/74 Heading G2J A differential interference contrast microscope comprises in the optical path from light source to eye-piece at least one birefringent element between a polarizer and an analyzer and a compensating plate formed of a birefringent material said plate having an optic axis substantially parallel to the optical axis of the instrument and a thickness such as to correct phase variations in the microscope field produced by said birefringent element. The element may be quartz and the plate a magnesium fluoride crystal the quartz element having an actual thickness of 1.5 mm whilst the magnesium fluoride plate has a thickness of 0.9 mm to compensate for both light traversals of the element. The element and plate may have the same incident light angle.
Patent GB-503244-A (GB)
Title: Improvements in or relating to cold beer mains
IPC: F25D31/00
Filed: 1937-10-28
Abstract: 503,244. Nonconducting coverings for heat. DIXON, B. Oct. 28, 1937, No. 29456. [Classes 64 (ii) and 64 (iii)] The separate lengths 1 of a beer main are each provided with tubular jackets 3 locked thereto by fittings 5 to form units easily disconnectible by undoing the unions 2 for steaming or other cleaning purposes, an expanded part 4 being provided near the end of each jacket to allow for unequal expansion of the pipes. The space between the pipes may be evacuated or filled with a solid insulation such as cork 8, or may contain a brine of temperature above 28‹ F., in which case the outer jackets are interconnected by flexible tubes.
Patent GB-364662-A (GB)
Title: Improvements in coin-collecting mechanism for hire-purchase systems
IPC: G07F15/06
Filed: 1930-10-02
Abstract: 364,662. Coin-freed apparatus. HORNBY, R., 7, Carlisle Street, Dean Street, London. Oct. 2, 1930, No. 29511. [Class 27.] Collecting hire-purchase payments.-Prepayment mechanism for collecting hire-purchase instalments is provided with means for automatically stopping the operation of the collecting mechanism, when the final instalment is paid. As applied to a collecting mechanism such as described in Specification 282,509, [Class 27, Coin-freed apparatus &c.], two usual gears 2, 3, Fig. 1, of the mechanism drive by a worm 4 a toothed wheel 1 loose on a small spindle, the wheel 1 driving a wheel 6, fast on the spindle, by a friction clutch 7 formed of spring fingers. The wheel 6 drives a unit figure drum 11 of a counter, the other drums 12, 13 of which are rotated by wheels 8, 9 loose on the spindle. The wheels 6, 8, 9 have extended bosses, each provided with a slot 14 in which fingers 15, formed as branches of a pivoted spring-controlled plate, engage, when the counter is at zero, thereby locking the counter. In this position, another branch 18, Fig. 3, through an insulating stud 19 raises a spring contact arm 20 of an auxiliary switch 20, 21 to interrupt the shank circuit, which constitutes the driving force of the collecting mechanism. The counter is first set by turning an extended end 23 of the spindle carrying the wheels 6, 8, 9 by a key inserted through a sealable aperture, to a figure representing the number of payments which make up the total hire-purchase price. Insertion of coins in the collecting mechanism automatically alters the counter 11, 12, 13 towards zero by the operation of the gears 2, 3. When the final payment is made, the counter is locked and the collector apparatus is thrown out of action by the opening of the switch 20, 21, thus preventing any further interruption of the main supply to the apparatus which it has controlled. A pointer indicates on a dial the number of coins to the credit of the purchaser beyond his actual minimum schedule of prepayment.
Patent GB-697837-A (GB)
Title: Textile spinning and twisting rings
IPC: D01H7/62
Filed: 1951-12-18
Abstract: 697.837. Spinning ring assembly. ALBRECHT, G. F. Dec. 18, 1951, No. 29596/51. Class 120(ii) A spinning ring assembly has two coaxial annuli, one being a traveller guiding ring of oil-absorbent type and the other being a supporting ring of oil-impervious material, the traveller-guiding ring comprising a body portion having inner and outer concentric cylindrical surfaces arid an annular bottom surface, the assembly being such that opposed surfaces of the supporting annulus and traveller guiding ring are shaped to provide an annular concealed channel for the reception of lubricant, the supporting annulus has an annular upstanding wall which contacts said outer cylindrical surface of the traveller guiding ring with an oil-tight fit, the supporting annulus has a passage leading from its interior to said channel for delivering lubricant to said channel, and an annular liner of oil impervious material is arranged within and concentric with said inner cylindrical surface of the traveller guiding ring which liner is operative to prevent contact of yarn with the oil absorbent traveller-guiding ring. As shown, the ring assembly comprises a supporting annulus 11 and a traveller-guiding ring 12 made of oil-absorbent material. said supporting annulus has upstanding wall elements 22 and 23 which engage inner and outer cylindrical surfaces 14 and 15 of the traveller guiding ring 12 in an oil-tight manner. The ring 12 is recessed at the outer lower corner to form, with the supporting annulus 11, an annular oil-resisting channel 25 which is in communication by means of an opening 28 with an oil reservoir R. The supporting annulus is made from an oil-impervious material, e.g. of metal or a suitable plastic, so that oil is prevented from reaching the surfaces with which a broken end of yarn may come into contact thus minimizing the risk of soiling said yarn. Other embodiments show a a separate outer member and an inner liner for the traveller-guiding ring and also an inner member which has a cylindrical portion spaced away from the inner surface of the traveller-guiding ring.
Patent GB-798138-A (GB)
Title: Improvements in or relating to means for erasing magnetic records
IPC: H04M1/65
Filed: 1956-09-28
Abstract: 798,138. Magnetic recording and reproducing apparatus. WESTERN ELECTRIC CO., Inc. Sept. 28, 1956 [Oct. 5, 1955], No. 29687/56. Class 40 (2). Means for erazing a rotating magnetic record medium comprises an erazing head having a stationary core extending across the width of the record bearing surface and having a centre portion substantially parallel to the rotational axis of said record surface, and the end portions diverging from said surface. Fig. 1 illustrates an embodiment in which two record cylinders 22, 24 and erazing heads 18, 20 are shown. A source of alternating current 16 is connected to one or other head by a change-over switch 25. To avoid leaving a line of magnetization, known as a " noise bar," of intolerable magnitude, means are provided for causing a decay of current when the erazing current is switched off comprising a cam 26 to break the circuit by means of a switch 38 which is short-circuited by a non-linear resistor or similar device having a positive temperature coefficient whereby the erazing current is reduced by 75 per cent to a steady value in a period of 0.2 of a second, corresponding to one fifteenth of a revolution of the record cylinder. U.S.A. Specification 2,733,300 is referred to.
Patent GB-427557-A (GB)
Title: Improvements in and relating to the casting of magnesium and magnesium alloys
IPC: B22C9/08
Filed: 1933-10-26
Abstract: 427,557. Moulds for casting magnesium. DAY, L. G., 49, Merriman Road, Blackheath, and BRITISH MAXIUM, Ltd., Point Pleasant, Wandsworth, both in London. Oct. 26, 1933, No. 29698. [Class 83 (i)] In the casting of magnesium or its alloys in dies or permanent moulds a porous metallic plug is placed in the bottom of the runner. The runner may have a constricted neck to hold the plug which may be made of steel wool. British Specification 375,979, French Specification 659,879, and U.S.A. Specification 1,710,398 are referred to.
Patent GB-1038378-A (GB)
Title: A laminated panel
Inventor: LEWIS ERNEST
IPC: E04C2/38
Filed: 1963-07-27
Abstract: 1,038,378. Laminates. MATTHEW SWAIN Ltd. July 17, 1964 [July 27, 1963], No. 29864/63. Heading B5N. [Also in Division E1] A building panel comprises a sheet 10 of vitreous-enamelled or plastics-coated steel adhesively secured to a channel-section frame 15 having infilling layers 11, 12 of asbestos and mineral wool materials flush with the frame surface. The panel is backed by a layer 13 of aluminium foil and a sheet 14 of asbestos material secured by screws 16. Screws 18 engage studs 17 welded to the sheet 10. Two brackets 19 secured to the frame 15 have weldedon nuts 22 by which the panel is fixed to a building framework.
Patent GB-1401400-A (GB)
Title: Solid fuel rocket motors
IPC: F02K9/28
Filed: 1973-06-22
Abstract: 1401400 Valves DYNAMIT NOBEL AG 22 June 1973 [22 June 1972] 29909/73 Heading F2V [Also in Division F3] A partition 5 separating the combustion chambers of a multi-stage solid fuel rocket comprises one or more plugs 11 which are axially displaceable by propellant gas pressure from apertures in the partition and are then displaceable laterally to partially or completely open the apertures. The plugs in the embodiment shown are carried by radial arms 13 extending from a sleeve 23. A pin 21 extending radially from a spigot 14 co-operates with slots 22a, 22b in the sleeve to permit the axial and lateral displacement of the plugs. In other embodiments the plugs are laterally displaceable by springs or by means of a rotatable ring.
Patent GB-708369-A (GB)
Title: Improvements in rotary regenerative air preheaters or like rotary drum apparatus
IPC: F28D19/04
Filed: 1951-12-21
Abstract: 708,369. Rotary regenerative heat exchangers and like apparatus. SVENSKA ROTOR MASKINER AKTIEBOLAG. Dec. 21, 1951 [Dec. 28, 1950], No. 29954/51. Class 64(1) In rotary drum type apparatus, e.g. regenerators in which the rotor comprises a cylindrical shell 10 divided by radially extending partitions into compartments containing discrete material, e.g. pellets, the said material is contained in a plurality of cells 31 disposed in each compartment of the-rotor and spaced apart to form passages therebetween for fluids passing through the apparatus, said cells having opposed perforate or foraminous wall members 33 extending parallel to the general direction of fluid flow through said passages, successive passages in a compartment of the rotor being closed at alterately opposite ends so as to direct fluid flowing therethrough to and through the foraminous wall members of the cells and over the material contained therein. The wall members 33 may be of metal or other material and may comprise perforated or reticulated plates or screen cloth. The pebble-like bodies or pellets may be of metal, ceramics or other material and may be any suitable size from #-in. to ¢-in. in diameter. Fig. 2 shows a rotor arranged for a generally axial flow of fluids therethrough, the cells being radially spaced in each rotor compartment. Fig. 4 shows an alternative form of rotor in which one fluid enters radially and is discharged axially and the other fluid enters axially' and is discharged radially, the cells in each rotor compartment being spaced axially from one another.
Patent GB-979200-A (GB)
Title: Filling attachment for fluid reservoirs
IPC: B67D7/44
Filed: 1963-07-29
Abstract: 979,200. Filling containers. ZUNDMETALLVERKAUFS-G.m.b.H. July 29, 1963 [Aug. 4, 1962], No. 29985/63. Heading B8T. A lighter containing gas liquefied under pressure is replenished with compressed liquefied gas by means of a valve stem 2 attached to a supply reservoir 1 being pressed down to engage a valve pin 4 and open the lighter inlet valve, a resilient sleeve 3 at the same time engaging the outer side of a valve seat 8. When the downward pressure is further increased the valve stem 2 is pressed into the outlet valve 6 on the supply reservoir 1 causing it to open. During this operation a stop 10 on the sleeve co-operates with a stop on the stem and then the sleeve is axially compressed and forms a seal with the outer side of the valve seat thus preventing gas from escaping. The valve stem may be formed integrally with the storage reservoir or may have a detachable portion slidable upon a portion fixed to the reservoir. The sleeve is made from natural rubber, synthetic rubber or a plastics material and the valve stem of metal or plastics material.
Patent GB-660648-A (GB)
Title: Improved means for mounting a pulsator on a suspended milker
IPC: A01J5/10
Filed: 1948-12-23
Abstract: 660,648. Suspended milker-pulsator mounting. ECREMEUSES MELOTTE SOC. ANON. Dec. 23, 1948 [Feb. 18, 1948], No. 30009/50. Divided out of 660,609. Class 84 A suspended milker comprises a lid having a pulsator post mounted thereon, the post having a passageway therethrough, an annular resilient gasket immediately surrounding the post and so disposed as to be : under compression between the lid and the pulsator when the latter is in operative position on the post. As shown in Figs. 1 and 2, pulsator post 12 defining a vacuum passageway 19 has a reduced neck portion surrounded by a flange 12b in which a notch 12a is cut. Resilient gasket 24 has an upwardly extending portion which fits in a V-notched groove in the pulsator body 13. The pulsator fits over the post and is locked in position by a pin 13d which passes notch 12a and is retained under the flange 12b by being turned through an angle. On removal of the pulsator from the post the gasket normally remains attached to the pulsator.
Patent GB-346314-A (GB)
Title: Composition of matter and method of manufacture
IPC: H01F1/24
Filed: 1929-10-03
Abstract: A composition for cores for magnetic inductances and other purposes consists of finely divided metal and mica consolidated by pressure. The ingredients are ground together and compressed to 200,000 pounds per square inch.  For a magnetic core iron, nickel or an iron-nickel alloy is mixed with from 8 to 10 per cent of mica.  The material may be compressed into discs with a central hole which are threaded on a rod to form a core.
Patent GB-152885-A (GB)
Title: Improved screw
IPC: F16B35/06
Filed: 1919-12-02
Abstract: 152,885. Goodman, R. J. Dec. 2, 1919. Wood-screws. - A selfcountersinking screw has one or more V-shaped notches 2 in the head, the edges of the notches being of different lengths and tangential to circles of different diameters concentric with the head of the screw. Inclined or curved grooves 4 run from the notches down the stem of the screw to the thread. Reference has been directed by the Comptroller to Specifications 11387/05, 24725/12, and 140,983.
Patent GB-1523816-A (GB)
Title: Preparation of (2,2-disubstituted vinyl)-y-butyrolactione
IPC: C07D303/08
Filed: 1976-07-19
Abstract: The lactones of formula I, in which the symbols have the meaning given in Claim 1, are obtained by reacting an unsaturated alcohol of formula III with a compound of formula IV in which X1 and X2 are a halogen, in order to form a compound of formula V, which is treated with one equivalent of a base in order to convert it to an epoxide by departure of an HX2 molecule. The epoxide is finally converted to a compound of formula I by reaction with a dialkyl malonate in the presence of two equivalents of a base. The lactones of formula I are useful intermediates for the synthesis of pyrethroid insecticides. <IMAGE>
Patent GB-263768-A (GB)
Title: Improvements in bearings of rotary liquid distributors for washing machines
IPC: A47L15/23
Filed: 1926-11-27
Abstract: 263,768. Merseles, H. E., (Assignee of Dahllof, T. W.). Dec. 26, 1925, [Convention date]. Rotary apparatus. - In a washing machine having a rotary distributor 10 supplied with liquid through a fixed conduit 15, and mounted on a lubricated bearing, means are provided to exclude the liquid from and to retain the lubricant in the bearing. As shown iu Fig. 1, the distributor is mounted on a pin 18 fixed in the conduit 15 by ball bearings 35, 35<1> arranged within an inverted cup 21 secured in the hub 22 of the distributor by screws 33. The open end of the cup 21 is closed by a cap 34 containing a packing ring 42, the' cup being filled with lubricant. A shallow cup 44 secured on the pin overlaps the cap 34. A slight clearance space between the end of the hub and a projection 26 in the conduit 15, and between the pin and the opening therefor in the hub. communicates with the exterior of the conduit through holes 45. When the apparatus is in use with the pin 18 projecting upwards, as shown, liquid entering the clearance between the hub and the projection 26 drains through the holes 45, so that the liquid is excluded from the bearing, while the cup 44 provides a seal for the bearing so as to retain the lubricant therein. When the apparatus is in use with the pin 18 projecting downwards, any liquid entering the hub 22 is deflected by the cup 44 and drains out through holes 46 leading from the end of the annular space between the hub 22 and the cup 21 to the exterior of the distributor. In a modification the arrangement is reversed, the pin 18 being fixed to the distributor and the bearing being arranged in the conduit. In the modification shown in Fig. 5, the distributor is mounted by plain bearings 35b on a pin 18b fixed in the conduit, the bearings being enclosed by a lubricant-filled sleeve 21b depending from the distributor, the open end of the sleeve being overlapped by a cup 44b. Specification 241,238 is referred to.
Patent GB-1494471-A (GB)
Title: Logic gates employing field-effect transistors
IPC: H03K19/094
Filed: 1974-11-21
Abstract: 1494471 FET logic circuits TEXAS INSTRUMENTS Ltd 21 Nov 1974 30065/77 Divided out of 1492589 Heading H3T In a logic gate having first and second impedances 25, 26, Fig. 1, connected between gates and connected sources of FET's 32, 33, first and second input terminals 23, 24 are connected to respective gates of the FET's, an output terminal 31 is connected to the drains of the FET's and the first and second impedances are so arranged as to provide, in operation, direct current paths from each input terminal to the sources of the FET's without substantially shunting the first and second input terminals. The impedances can be resistors or semi-conductor diodes. Fig. 1 shows P-channel MOS transistors which function as an exclusive OR gate. A further MOS transistor may be added to provide a three input gate (Fig. 2, not shown). P- channel junction FET's (Fig. 4, not shown) can replace the MOSFET's. N-channel junction FET's may be used in place of the MOSFET's and the diodes 25 and 26 are reversed so as to form an exclusive NOR gate (Fig. 3, not shown). The output of one logic gate may be connected to one input of a next logic gate. The outputs of the logic gates can be connected in parallel. Integrated circuit techniques may be used.
Patent GB-1412182-A (GB)
Title: Graphite heating elements
IPC: H05B3/06
Filed: 1973-06-25
Abstract: 1412182 Graphite tube heating resistor SIGRI ELEKTROGRAPHIT GmbH 25 June 1973 [13 July 1972] 30166/73 Heading H5H A resistance heating element has an elongate graphite member with relatively cold terminal ends 2 and a tubular longitudinally curved heating length 1, in which the electrically conductive cross-sectional area is two to five times greater at the ends 2 than at the heating length 1. The ends 2 may have a tungsten or molybdenum rod connected to copper cables 5 screwed in. The heating part proper may have a meander, U or helical shape. The increased crosssectional area at the ends may be achieved by narrowing the bore (Fig. 3, not shown).
Patent GB-626719-A (GB)
Title: Improvements in or relating to textile looms
IPC: D03D49/44
Filed: 1946-10-10
Abstract: 626,719. Picking and checking loom shuttles. FORMAN, J. Oct. 10, 1946, No. 30322. [Class 142 (iii)] [Also in Group XXXV] A shuttle is picked and checked by discharging condensers to produce heavy pulses of current through coils at opposite ends of, a loom. A timing switch driven by the loom, and switches actuated by the shuttle as it approaches the end of its traverse, initiate the pulses. The voltage' to which the condensers are charged (and hence the strength of the pulses) may be controlled automatically in accordance with temperature, humidity, or the speed of the loom ; or a circuit (see Group XXXV) closed by the shuttle when it is halfway across the loom may increase or decrease the voltage if the shuttle passes the midpoint early or late. Checking and positioning shuttle. The checking pulses may be adjusted to bring the shuttle neatly to rest, after which it is stopped in the shuttle box by mechanical means. It may be moved out of the shuttle box in readiness for the next pick by a mechanically or electromagnetically operated ram ; or the picking pulse may be preceded by a current passed through the same or a separate coil to draw the shuttle out of the box. Shuttle. The shuttle shown has a ferromagnetic band 1M and two conductive paramagnetic bands 1R, 1R<SP>1</SP> which adapt it for acceleration and retardation in two or more stages by means of coils 2M, 2R. The coil 2M is pulsed first to accelerate the shuttle electromagnetically by co-operation with the band 1M ; when the shuttle reaches the position shown in broken lines, the coil 2R is pulsed to give further acceleration by repulsion on the band 1R ; a third impulse may be given by again pulsing the coil 2R when the band 1 R<SP>1</SP> passes the coil. Retardation may be effected in similar steps. Specification 605,747, [Group XXXV], is referred to.
Patent GB-251891-A (GB)
Title: Improvements in spinning machines for capsuling bottles
IPC: B67B3/14
Filed: 1925-12-02
Abstract: 251,891. Vingerling, S. E., and Wolfswinkel, J. A. van. Dec. 2, 1925. Capsules, applying.-In a spinning-machine for capsuling bottles and comprising a rotary head 8 of hollow sleeve-link form having at its forward end one or more levers 13 carrying rotatable capsuling-rollers 12 which are adapted to be moved inwardly by centrifugal force due to rotation of the head, a supporting piece 15 for the neck of the bottle is adapted to slide in the head to a position in which it is wholly therein so that the neck of the bottle also enters the head, the arrangement permitting the overhang of the levers to be reduced. The inward movement of the levers is limited by the flared end 18 of the head and the levers are guided by projections 14 on the head between which their heavy outer ends move.
Patent GB-687719-A (GB)
Title: Composition for use in training domestic animals
IPC: A01K15/02
Filed: 1949-11-28
Abstract: Valerian extract comprising isomeric valeric acids is intimately mixed with an absorbent, e.g. saw-dust to provide a composition suitable for use in training domestic animals, particularly cats, in clean habits.