baber/WOPTO huggingface dataset:
Patent GB-1026993-A (GB)
Title: Polyester compositions for bonding glass fibre mats
IPC: C08G63/672
Filed: 1964-05-05
Abstract: A polyester having a molecular weight of 3000-5000 and a softening point of at least 80 DEG  C. is produced by interacting a polyhydric alcohol component and a dicarboxylic acid component in within 10 mole per cent of equimolar proportions, the polyhydric alcohol component containing at least 75 mole per cent of a glycol of formula <FORM:1026993/C3/1> in which R and R1 are alkyl groups of 1-4 carbon atoms and the dicarboxylic acid component containing a dicarboxylic acid or esterforming derivative thereof, 25 mole per cent of which is iso- and/or terephthalic acid, the reaction mixture also containing in one or other component at least 1 mole per cent of either (a) a polyglycol having 4-18 carbon atoms or (b) a dicarboxylic acid of formula HOCO(CH2)nCOOH having 4-10 carbon atoms.  The poyhydric alcohol component may comprise 75-99% of neopentylene glycol and 25-1% of diethylene glycol. Other glycols specified are propane-1,3-diol and its 2-ethyl-2-butyl-, 2,2-diethyl- and 2 - methyl - 2 - ethyl - derivatives.  The dicarboxylic acid component may contain up to 90% iso-or terephthalic acid giving a concentration in the whole mixture of 50% or more.  The total amount of (a) and (b) may be up to 25 mole per cent.  Acids (b) specified are succinic, adipic and sebacic.  The polyhydric alcohol component may also contain a compound having 3-6 carbon atoms and at least 3 hydroxyl groups which may provide 3-20% of all the hydroxyl groups.  Alcohols of this type specified are glycerol, trimethylol propane and pentaerythritol. The mixture may also contain 10-50% of an unsaturated a ,b -dicarboxylic acid.  Such acids specified are maleic, fumeric, itaconic, citraconic, mesaconic and chloromaleic. Litharge may be added as a polyesterification catalyst. Unsaturated polyesters can be cured by cross-linking either in a hot molten state or in solution in styrene or diallyl phthalate. In the latter case copolymerization will occur. The products may have softening points up to 200 DEG  C.  They may be granulated, mixed with glass fibres, melted and then cooled to bond them together. In Example (1) the polymerization is carried out under N2 in the presence of toluhydroquinone.
Patent GB-1391849-A (GB)
Title: Heat treating
IPC: C04B35/64
Filed: 1972-04-21
Abstract: 1391849 Vertical tube furnaces ELECTRONIC MEMORIES & MAGNETICS CORP 21 April 1972 [21 April 1971] 18676/72 Heading F4B  A vertical tube furnace for sintering magnetic cores comrises a treatment tube 18 with an upper parts feeder 14 and a pressure gas regulator 34, an outer tube 20 disposed within a refractory lining 24 enclosing electric heating elements 22, and a bore 16 for treated cores leaving the tube at 30. Cooling gas is supplied through a pipe 38. The furnace is divided into heating zones 41-44 by baffles 48 each zone having a thermocouple 50. The treatment tube 18 is about  inch wide and may be made of Pt, the heating elements may be SiC rods and the tube 20 may be made of Al 2 O 3 . Owing to the presence of the gas, the cores, which may be <SP>1</SP>/ 50  inch in diameter, fall at random down the 7 foot treatment tube 18, the gas rate being controlled so that the cores take about 3 sees. in said fall. The cores may be rapidly tested to enable speedy adjustment of the furnace conditions.
Patent GB-357239-A (GB)
IPC: F21K5/08
Filed: 1930-06-19
Abstract: 357,239. Photographic flash lamps. OSTERMEIER, J., Althegnenberg, Bavaria, Germany. June 19, 1930, No. 18758. Convention date, June 22, 1929. Addition to 324,578, [Class 75 (i), Burners &c.]. [Class 75 (i).] The charge of oxygen in the flash lamp of the parent Specification is replaced wholly or in part by a non-gaseous oxygen-carrying material which is held in contact with the oxidizable material. The oxidizable material, either in the form of foil or a layer of powder of the thickness of foil, may be secured to one or both sides of paper impregnated with an oxygen-evolving substance, such as a peroxide of an alkali metal, alkaline-earth metal, or manganese.
Patent GB-789135-A (GB)
Title: Improvements in textile ring spinning machines
IPC: D01H13/04
Filed: 1955-06-29
Abstract: 789,135. Lappet yarn guides. BREMATEX. June 29, 1955 [July 7, 1954], No. 18820/55. Class 120(2) Lappet yarn guides are carried at the ends of arms mounted . for pivoting about a horizontal axis on a support participating in the movement of the ring rail of a ring spinning machine, so as to permit pivoting of said guides to an out-of-the-way position and means are provided which are operative when the ring rail is moving on a supplementary underwinding stroke to act on the arms to automatically pivot them upwards into the out-of-the-way position during the underwinding stroke. In the arrangement shown, yarn guides 2 are disposed at the end of pivoted arms 3 mounted on a support 4 which participates in the vertical movements of the ring rail of the machine. Bars 8 are slidably disposed on either side of the support 4 and when moved upwards by contacting fixed abutments 10, pivot the arms 3 upwards. The abutments 10 are carried by the frame of the machine and are positioned so that they cause the bars 8 to move upwardly with respect to the support 4 when the ring rail is moving down in the course of the underwinding stroke.
Patent GB-568968-A (GB)
Title: Improved method of and apparatus for producing high vacua
IPC: H01J41/18
Filed: 1943-11-12
Abstract: 568,968. Obtaining high vacua. TILLS, J. W., LOVATT, J. B., and POTTS, F. C. Nov. 12, 1943, No. 18822. [Class 8 (i)] A high vacuum is obtained in a vessel 12 by irradiating the gas therein by an X-ray tube 11 or by Y rays and alternating the ionized gas molecules by ring electrodes 14, 14<1> maintained at opposite high potentials. The gas is carried by its momentum through or past the electrodes to diffusion pumps 18, 181 and discharged through an outlet 21 to a backing pump. In modifications (1) an electromagnetic field may replace or assist the electrostatic field, and (2) the X-ray tube may be combined with the vessel 12. The caps of the diffusion pumps may serve as the electrodes. The apparatus may be enclosed in a vacuous vessel containing transformer oil, the pumps discharging to the vacuous space above the oil, which is connected to a backing pump. The vessel 12 may be arcuate, the two ends being evacuated by the same pump, or if the gas produces ions of only one sign gas may be admitted at one end of a potential gradient in a vessel leading to a pump at the other end. One of the electrodes may be heated to provide an electronic stream. The X-ray current may be automatically controlled in accordance with the current flowing in a lead to an electrode, and a meter may indicate the ionic concentration.
Patent GB-578098-A (GB)
Title: Improvements relating to the application of coatings to webs
IPC: G03C1/74
Filed: 1943-11-13
Abstract: 578,098. Photo - electric control of film-coating mechanism. KODAK, Ltd. Nov. 13, 1943, No. 18935. Convention date, Nov. 16, 1942. [Class 40 (iii)] [Also in Groups VIII and XXIX] In an apparatus for coating webs with liquid (see Group VIII), the rate of removal of surplus coating liquid from the web is controlled by variation of air pressure in an air knife, such variation being effected by opening or closing a damper 45<1> and this operates in response to the liquid level in container 11<1>. Movement of float 115 and hence angular mirror 114 causes a ray of light from lamp 112 to strike one or other light-sensitive cells 110 and 111 and by amplifier A or A' energize the relay shown in the lower part of the drawing to drive shunt wound motor M' in the appropriate direction to open or close the damper 45<1>.
Patent GB-1155127-A (GB)
Title: Improvements in or relating to Clamping Bolts
Inventor: ARCO ANTONIA DEL
IPC: F16B21/10
Filed: 1967-04-26
Abstract: 1,155,127. Clamps. AGROMAN EMPRESA CONSTRUCTORA S.A. 26 April, 1967, No. 19161/67. Heading E2B. A clamping bolt comprises a slotted body 1 which is passed through apertures in members 5 and 7 and a wedge member 9 which is engageable in the slot to clamp the members 5,7 together. The bolt is secured to a head 2 to the member 5. The slot extends to the outer end of the member 5 or head 2.
Patent GB-572182-A (GB)
Title: Improvements in the lubrication of high speed shafts or spindles
IPC: F16N31/02
Filed: 1943-11-17
Abstract: 572,182. Bearings ; lubricating. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Nov. 17, 1943, No. 19218. [Classes 12 (i) and 12 (iii)] [Also in Group XXVI] In a lubricated shaft bearing, excess of oil is removed by a porous wiper or collector connected to a suction source. The wiper may consist of a ring or plug of porous metal or of non-metallic material such as felt, asbestos, or fibre, and is pressed by one or more springs into close contact with the shaft. Similar wipers connected to oil under pressure may be used to supply oil to the bearing. The shaft 1, Fig. 1, turns in bushes 2, 2A which enclose an annular carrier 5 for a porous metal ring 6 made in two or more segments pressed by a garter spring 7 and connected to an oil-supply pipe 8A. Carriers 13, 14 are pressed by springs against the flanged outer ends of the bushes and contain porous metal rings 15, 16 with spring rings 17, 18, the rings being connected by pipes 19A, 20A to a suction source. The carriers may be in segments. The wiper may consist of a porous plug 23, Fig. 2, fixed in a carrier 24 and pressed by a leaf spring 25. In a modification, Fig. 5, a porous metal plug 40 is soldered into a carrier 41 which slides within a housing 42 under the action of one or more springs 46, the capillary feed pipe 44 being coiled to serve as a spring. The porous plug may be pre-formed in situ.
Patent GB-782781-A (GB)
Title: Improvements in magazines for cigarettes in cigarette-making machines
IPC: A24C5/32
Filed: 1955-07-04
Abstract: 782,781. Cigarette hoppers. KORBER, K. July 4, 1955 [July 21, 1954], No. 19242/55. Class 78 (1). Agitating means 7 for agitating cigarettes 2 in a hopper 1 is rocked by motor driven eccentric rolls 9a, 9b which rotate to displace block 12 so that said agitating means oscillates about pivot 8. Additionally, the rolls project through recesses 7a, 7b in the means 7 to positively feed the cigarettes downwards. As shown, elliptical elements 14a, 14b may be rocked by hand lever 18 to provide a further agitation, the cigarettes being fed from the hopper by eccentric rolls 5a, 5b to passage 3 and thence into the grooves of drum 4. The whole device may be incorporated in a cigarette machine of the type employing two cigarettes separated by a double filter tip.
Patent GB-530765-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K9/04
Filed: 1939-07-03
Abstract: 530,765. Lamp-caps. MISSOL, S., and FELD, L. July 3, 1939, No. 19304. [Class 38 (i)] A multiple filament lamp has a screw cap to which one end of each filament is connected and contact plates f, g to which the other ends of the filaments are separately attached. A centre contact r is pressed down by a spring p on to the plates f, g and is rotatable to act as a switch, an insulating insert s preventing contact with more than one of the plates f, g. Projections on the contact r and corresponding recesses in the insulation of the cap, prevent accidental rotation of the contact. The filament leads connected to the plates f, g pass through holes j, k.
Patent GB-662712-A (GB)
Title: Improvements in or relating to method of and apparatus for casting and processing elongated articles
IPC: B22D13/02
Filed: 1949-07-22
Abstract: 662,712. Foundry plant. STEVENS, A. H. (Herman Pneumatic Machine Co.). July 22, 1949, No. 19338/49. Drawings to Specification. Class 83 (i). The subject-matter is the same as in Specification 670,118, but the invention claimed comprises a method of casting and processing an elongated article including the steps of discharging the article endwise from its mould in a downward direction, arresting it by engaging its lower end, engaging it at a higher point and lowering it into the right position relative to a conveyer which carries it away for processing. It also comprises means for carrying out this method and lowering the article into roughly horizontal position. Specification 650,683 is referred to.
Patent GB-1534781-A (GB)
Title: Winding machine guard
IPC: F16P3/00
Filed: 1977-05-11
Abstract: 1534781 Machinery safety devices BOWATER-SCOTT CORP Ltd 11 May 1977 [11 May 1976] 19376/76 Heading F2J A web winding machine has a movably mounted guard frame disposed adjacent the web winding mechanism, i.e. rollers 8, 9, the guard frame including a protective grid of spaced apart rods 13 defining gaps through which an operator's finger tips only can pass, the guard frame being movable from a first retracted position, in which contact with the web winding rollers 8, 9 is prevented, to a second operative position close to the web winding rollers 8, 9 in which an operator may extend his finger tips through the rod gaps in the protective grid and feed the web on to the web winding rollers 8, 9 whilst his hands are prevented from being drawn into the machine. The guard frame is movable between the two positions by pneumatic or hydraulic piston/ cylinder units 25-27, each acting through a parallelogram linkage 17, 18, 24. A photoelectric cell 29 automatically cuts the power to the main machine drive if, during winding, &c. the sheet web 1 breaks. The guard frame, which is normally retracted when the machine is running, is then brought into the operative position by operation of a control switch (not shown) to actuate the piston/cylinder units 25-27. In this position the operator can extend his finger tips through the grid to refeed the sheet web 1 around the rollers 8, 9 and can run the machine slowly by pressing a start button (not shown) to thread the sheet web on to the roller 9. In this operative position of the guard, automatic continuous operation of the machine is prevented since the guard itself interrupts the photo-electric beam. Once the threading-up has been accomplished, the guard frame is retracted and the machine can be restarted to run continuously under automatic control.
Patent GB-295501-A (GB)
Title: Improvements in and relating to the supply of current to radio apparatus
IPC: H04B1/16
Filed: 1927-07-21
Abstract: 295,501. Igranic Electric Co., Ltd., Wright, S. R., and Currah, L. E. July 21,1927. Thermionic amplifiers.-In amplifiers supplied with high tension from rectifiers, the rectifiers are connected in series, and grid bias for one of the amplifiers is tapped from the output of the rectifier supplying high tension to another amplifier circuit. The Figure shows rectifiers r1, r2, having output circuits 1, 2, and 3, 4 supplying high tension to valves v1, v2, the filament of the latter being heated with alternating current. A tapping on a resistance s across the output 1-2 supplies the grid bias to the valve v2 and additional tappings may supply high tension voltages for other valves in the set. An additional potentiometer connected across a portion of the resistance s may be used for the grid bias tapping.
Patent GB-1058547-A (GB)
Title: Accident preventing guard for injection moulding machines
IPC: B29C45/84
Filed: 1964-05-11
Abstract: 1,058,547. Machinery safety devices. ARBURG MASCHINENFABRIK HEHL & SOEHNE. May 11, 1964 [June 6. 1963]. No. 19471/64. Heading F2J. When the guard 2 of an injection moulding machine (10) is swung away from the injection cylinder (9), Fig. 1 (not shown), the control circuit of the machine (10) is interrupted by one of two fingers 3 on the guard 2 disengaging from a switch unit 6. The switch unit 6 has two micro-switches 15, 16 operated through rollers 17, 18 on either side of a U-shaped finger 3 which is so shaped that one switch is on and the other is off, thus closing the machine control unit.
Patent GB-659669-A (GB)
Title: Identifying means for attachment to or holding diamonds or other precious stones
IPC: A44C27/00
Filed: 1949-07-25
Abstract: 659,669. Seal fastenings. OBSTFELD, S. M. July 25, 1949. No. 19486. [Class 44] [Also in Group VII] Locking means secured by a seal are provided to secure holding means adjusted to grip the periphery of a precious stone. A headed locking pin g is inserted in a bore made through a stone-holding member a, Fig. 1, and a cap e which supports a slidable sleeve d, the upper end of which forces jaws b to grip the stone, or through a stoneholding member j, Fig. 3, and a gripping sleeve L; a piece of wire h is then passed through a hole in the protruding end of the pin g and secured by a seal i.
Patent GB-1056071-A (GB)
Title: Glow-distance tube indicating circuit for transistorised counter decades
IPC: H03K21/08
Filed: 1963-05-16
Abstract: 1,056,071. Counters; electric selective signalling. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG. May 16, 1963 [May 18, 1962], No. 19499/63. Headings G4A and G4H. An indicator circuit for a transistorized counter comprises glow discharge tubes associated with multiple voltage dividers in such a way that the high voltage necessary for the glow discharge tube is isolated from the transistors. Only one indicating stage is shown which is operative when transistors Tl, T4, T6 are non-conducting. Voltages E2, E3, the former being higher are applied to the glowdischarge tube circuit. The one electrode B of tube G is connected to the emitter of a single transistor T11, the base of which is fed through resistors by the potential on the emitters of the two counting tubes T4, T6. The other electrode A of tube G on the other hand is connected to the emitter of counting tube Tl through two transistors T9, T10 which operate as an inverter.
Patent GB-765114-A (GB)
Title: Improvements relating to front forks for cycles
IPC: B62K21/04
Filed: 1954-07-03
Abstract: 765,114. Cycle frames. HIPWOOD, G. June 28, 1955 [July 3, 1954], No. 19545/54. Class 136(3). A cycle front fork comprises a fork crown 1 formed as a malleable casting with tubular end portions 3 carrying depending legs 5 which are engaged by the fork blades 2, the legs being without external shouldered portions and the blades fitting over the legs up to the tubular end portion 3 of the crown and having the edges of their upper ends shaped and curved at 7 to fit against the curved undersides of the tubular end portions 3. The tubular end portions 3 are closed by caps.
Patent GB-1459254-A (GB)
Title: High pressure seal
IPC: F16J15/28
Filed: 1974-05-06
Abstract: 1459254 Extruding ASEA AB 6 May 1974 [7 May 1973] 19762/74 Heading B3P [Also in Division F2] A seal between the inner wall of a cylinder and a plunger 1 or die of a hydrostatic extrusion press comprises two metallic rings 9, 10, 30, 34 both abutting a holder 6, the ring 9 or 30 being prestressed by being an interference fit in liner 5. Draining channels 15, 33 (42 and 56) may be provided in the ring 9 or 30. If the ring 9 is of steel, it may be coated with copper 16 to promote sealing. The two rings 30, 31 are bridged by an elastomeric ring 39.
Patent GB-452845-A (GB)
Title: Improvements in or relating to multi-piston-flow-through meters
IPC: G01F3/18
Filed: 1934-12-24
Abstract: 452,845. Sampling liquids. HEJDUK, F., 11, Jecna Street, and NEUMANN, J., 13, E. Peskove Street, both in Prague. Dec. 24, 1934, No. 19935/36. Divided out of 452,712, [Group XXIX]. [Class 106 (v)] [See also Group XXIX] In a liquid-meter of the radial cylinder type, a stroke-limiting abutment member comprises a spring- pressed piston 18<1> within a cylinder 43 provided with a pipe 51, by means of which samples may be obtained.
Patent GB-508626-A (GB)
Title: Improvements in and relating to coffee infusing apparatus
IPC: A47J31/043
Filed: 1938-07-06
Abstract: 508,626. Heating by electricity. CONA, Ltd., and LORCH, W. July 6, 1938, No. 20067. [Class 39 (iii)] A radiant electric heater for a coffeeinfusing apparatus having a round bottomed flask 1 containing water to be heated, comprises an electric resistance wire 9 wound on a conical steatite former 8, mounted in a conical reflector 10 which directs heat towards the base of the flask. A grid 11 is provided between the heater and the flask 1. The heater unit is positioned between the bifurcated feet of the base 14 of a stand supporting the flask 1. A lug 13 on the base of the heater fits into a socket 13a in the base 14, so that an imperforate part 12 of the grid 11 is arranged to protect the upright 5 of the stand from radiation.
Patent GB-183827-A (GB)
Title: Improvements in or relating to spoons and forks
IPC: A47G21/02
Filed: 1922-07-22
Abstract: 183,827. Deutschberg, D. L. July 27, 1921, [Convention date]. Spoons and forks are made with a handle a having a screw-threaded pin standing out therefrom and a spoon bowl or fork end b internally screwed so that they may be detachably secured to the pin, so that they may be renewed each time the spoon or fork is used. The spoon bowl or fork end is served in a dust-proof packing. Reference has been directed by the Comptroller to Specifications 7500/99, [Class 30, Cutlery], and 5362/00.
Patent GB-1391671-A (GB)
Title: Battery charging arrangement
IPC: H02J7/34
Filed: 1972-05-01
Abstract: 1391671 Battery charging circuits SOC DES ACCUMULATEURS FIXES ET DE TRACTION 1 May 1972 [30 April 1971] 20219/72 Heading H2H A circuit for charging a battery 10 at high and low charging rates comprises a charge storage accumulator 16 which discharges during the charging of the battery at the high rate, the accumulator discharge current being proportional to the battery charge current and the battery being charged at the slow rate when the charge stored by the accumulator has fallen below a predetermined level so that the accumulator controls the duration of the high rate battery charging. The battery is normally charged from A.C. mains 12 via a bridge rectifier 130. On failure of the mains, a cut-out 9 is closed to enable the battery 10 to supply a load 11 such as emergency lighting, the discharge current of the battery establishing a potential across a resistor 14. This potential controls the conduction of a transistor T4 so that the charging current for the accumulator 16, supplied by the battery 10 via resistors 18, R13, a diode D7, a resistor R10, the transistor T4 and a resistor R11, is proportional to the voltage across the resistor 14 and is therefore proportional to the discharge current of the battery 10. When the mains supply returns the battery 10 is recharged and a potential is established across a resistor 18. This potential controls the conduction of a transistor T7 in the discharge path, comprising a potentiometer P1, a resistor R15, the transistor T7 and a resistor R13, for the accumulator 16. Hence the discharge current of the accumulator is proportional to the charging current of the battery 10. Initially, as the accumulator 16 discharges, a control circuit including transistors T1, T2, T5 and a relay having a coil 132 and a contact 133 is operative to ensure that the coil is energized. The contact 133 therefore engages a contact R to enable a rapid charge of the battery 10. As the accumulator 16 discharges the transistors T5, T1 become non-conductive thereby switching off the transistor T2 and de-energizing the relay coil. The contact 133 therefore engages a contact L to enable a slow charge of the battery. At the same time, a transistor T6 controlled by the transistor T1 connects a resistor R14 in parallel with the resistor R15 to maintain the strength of the accumulator discharge current and prevent heating of the relay contact.