baber/WOPTO huggingface dataset:
Patent GB-1329361-A (GB)
Title: Expansion of thermoplastic polymer beads
IPC: B29C44/34
Filed: 1971-09-01
Abstract: 1329361 Expanding thermoplastic particles KOPPERS CO Inc 1 Sept 1971 [2 Nov 1970] 40843/71 Heading C3C [Also in Division F4] A method of expanding thermoplastic polymer beads comprises introducing polymer beads containing a blowing agent into one axial end of a vessel rotating about the axis, introducing a heating fluid into the vessel to heat the polymer beads to expand them, the expanded polymer beads leaving the vessel via an aperture in the other axial end of the vessel, which aperture is substantially coaxial with the vessel. The vessel preferably comprises a cylindrical portion and a coaxial frusto-conical portion, the polymer beads entering the rotatable vessel via the end of the cylindrical portion which is remote from the frusto-conical portion and the expanded polymer leaving the rotatable vessel via the aperture in the end of the frusto-conical portion which is remote from the cylindrical portion of the vessel. The polymer beads may be of polystyrene, polymers of alkyl substituted styrenes, polyvinyl chloride, polyvinylidene chloride, polyacrylic esters, copolymers of styrene and α- methyl styrene or alkyl substituted styrenes, copolymers of styrene with divinyl benzene, copolymers of butadiene or other dienes or acrylonitrile and styrene and mixtures of polystyrene and natural or synthetic rubbers. The blowing agent is preferably a volatile aliphatic or cycloaliphatic hydrocarbon, generally in an amount 3-15% by weight. The beads are generally round but may be pillow-shaped and heating fluid specifically used is steam. An apparatus is described for carrying out the method.
Patent GB-946737-A (GB)
Title: Electrical counting device
IPC: G11C19/06
Filed: 1962-10-30
Abstract: 946,737. Magnetic storage devices. AMP Inc. Oct. 30, 1962 [Nov. 3, 1961], No. 40916/62. Heading H3B. [Also in Division G4] A magnetic core counter of the ring type is provided with readout means. The counter comprises a ring of ten cores " 0 "-" 9 " and ten transfer cores 1-10. All the cores have a main aperture 11 and four small apertures 12-15, but some of these are not used in certain cores. In the 0 or clear state all the flux is clockwise, whereas in the 1 or set state part of the flux is anti-clockwise. Momentary closure of switch 25 sets the counter to 0 with core " 0 " set and all others clear, by pulsing windings through aperture 15 of core " 0 " and apertures 11 of all other cores. Each count pulse at 17 operates drive circuit 16 to produce pulses on leads 18 and 21 and then on leads 19 and 21. The first pair of pulses transfers the set condition from core "0 "to core 1 and the second pair from core 1 to core " 1," and so on round the ring. Read-out is effected by pulsing circuit 22 when aperture 14 of the set core reads out in decimal code on winding 47 or in excess-3 binary code on windings 48-51. Specifications 899,366 and 919,940 are referred to.
Patent GB-1370330-A (GB)
Title: Metal casting apparatus 1370331supran l d sports ball having an electrically conducting surface
IPC: B22D27/15
Filed: 1971-12-07
Abstract: 1370330 Apparatus for vacuum casting PRECISION METALSMITHS Inc 7 Dec 1971 [28 May 1971] 40946/73 Divided out of 1370329 Heading B3F  Apparatus for casting molten metal comprises a mould 120 having an opening 122 through which molten metal is introduced and gas-permeable walls 128, a chamber 66 for receiving such a mould, a pouring chamber 65 for introducing molten metal into the mould, and means for varying the pressure applied to the mould opening, and the pressure externally applied to the mould walls, the apparatus being so arranged that, in use, molten metal may be introduced from the pouring chamber into the mould in vacuo and, at least until molten metal in the mould has partially solidified, a vacuum may be applied externally to the mould walls whilst a higher pressure is applied to the mould opening. The apparatus is as described in Specification 1,370,329.
Patent GB-1084948-A (GB)
Title: Improvements in or relating to head rests
IPC: B60N2/48
Filed: 1965-09-28
Abstract: 1,084,948. Head rests; securing cushions.- ANDRE CITROEN S.A. Sept. 28, 1965 [Sept. 30, 1964], No. 41142/65. Headings A4J and A4M. A head-rest for mounting on the back portion (16) of a seat comprises a body of stuffing 1, Fig. 1, enclosed in a cover formed of linen cloth 4 and elastic material 3. Straps 7 are sewn to a cloth 4 and pass through openings in a decorative casing 5. Straps 10 are adjustably engageable with straps 7, a part 9 of a press stud being provided on each strap 7 to co-operate with a press stud part 12a or 12b on each strap 10. Straps 10 are slidably mounted in openings 8 in casing 5 and in loops 11 sewn to cover 4. Button holes 15 are provided on straps 10 to engage upholstery buttons on seat back (16), Fig. 5 (not shown). Snap-hooks 13 are attached to straps 10 to engage D-rings (18) on seat back (16), Fig. 4 (not shown). In a modification, Fig. 7 (not shown) the straps are disposed obliquely and are attached to lower parts of the seat back by hooks or press studs.
Patent GB-1336914-A (GB)
Title: Document encoding apparatus
IPC: G06K13/02
Filed: 1971-09-03
Abstract: 1336914 Selective signalling BURROUGHS CORP 3 Sept 1971 [17 Sept 1970] 41275/71 Heading G4H  The invention relates to modifying the starting position of printing on a record. In Fig. 2, a unit record (e.g. blank cheque) 10 is fed through a printing station for printing of a series of multi-character fields by a hammer 48, interposer 46, print wheel 24 and ink ribbon 58, the print wheel 24 being stepped to the required position before each character. A plugboard specifies field beginning and end characters, and other characters to be printed come from a memory. Feed of the record is at high speed by rollers 60 until the document reaches (and is stopped by) rollers 64, 66 when photodetectors 71, 72 detect it and cause constant lower speed feed by rollers 64, 66. Printing commences in response to a photodetector 70 detecting the leading edge of the record, but photodetectors 71, 72, 74 also detect whether the record is long or short and if photodetector 74 sees the record when 71 and 72 do, an extra field is "printed" before the normal fields, under control of the plugboard, this field consisting entirely of blanks, so with the larger size record the actual printing starts further from the leading edge than with the smaller size. The precise position of the characters printed can be shifted in units of one eighth of the character width to compen sate for minor variations in record length by manually setting a rotary switch, clock pulses (8 per character) derived from the document drive incrementing a binary delay counter, the count of which is compared with the switch position (converted to binary), the clock pulses being gated to a zone counter (controlling printing) only after equality. The characters printed may be in a machine-readable font.
Patent GB-1303690-A (GB)
IPC: H03F3/347
Filed: 1970-08-27
Abstract: 1303690 Transistor amplifiers SIEMENS AG 27 Aug 1970 [28 Aug 1969] 41291/70 Heading H3T A phase inverter comprises an emitter follower having a resistance and a diode connected transistor in its emitter circuit and having the base of a common emitter stage connected to the resistor-diode junction. Preferably resistors 2 and 4 are equal
Patent GB-1436075-A (GB)
Title: Dispenser for insect control
IPC: A01N25/10
Filed: 1974-09-24
Abstract: 1436075 Dispenser for insect control HERCULITE PROTECTIVE FABRICS CORP 24 Sept 1974 [25 Sept 1973] 41474/74 Heading A5E A dispenser for insecticidal agents effective against cockroaches and other insects comprises a laminated polymeric article comprising a first outer layer, at least one core layer, and a second outer layer, the core layer comprising a solid, non-porous layer of polymeric material selected from polyethylene, polypropylene and polyvinylchloride, and containing an anticockroach agent selected from chlorpyrifos, diazinon, ohlordane, carboxyl, proposcus, malathion, bioresmethrin, and penchlorphos, and mixtures thereof, the first outer layer being a polymer selected from polyethylene, polypropylene and polyvinylchloride, through which the agent is capable of migrating from the core layer to provide an effective level of the agent on the exposed surface of the outer layer, the agent being present in an amount of at least 10% by wt of the total weight of the laminate. The second layer may be comprised of the same material as the first layer or a material Which acts as a -barrier to migration of the agent e.g. nylon or polyester. It is preferred that the dispenser have a first outer layer thickness of .001-0.10", core thickness of .002-.020" and a total thickness of up to .030".
Patent GB-1400289-A (GB)
Title: Cotelomers
IPC: C07C17/00
Filed: 1972-09-11
Abstract: 1400289 Ethylene-vinyl chloride telomers RHONE-PROGIL SA 11 Sept 1972 [12 Sept 1971] 42144/72 Heading C3P Telomers of ethylene, vinyl chloride and carbon tetrachloride are obtained in the presence of iron or an iron compound as catalyst at up to 200‹ C; the products have the formula in which n and m are each 1-10. In examples the reaction is effected in solution using as catalyst (1) ferric or ferrous chloride with or without benzoin, (2) ferric chloride with triethyl ammonium chloride. The products can be used as plasticizers for PVC
Patent GB-1524086-A (GB)
Title: Electronic alarm timepiece
IPC: G04G15/00
Filed: 1976-10-12
Abstract: 1524086 Electronic alarm timepieces DAINI SEIKOSHA KK 12 Oct 1976 [13 Oct 1975] 42343/76 Heading G3T In an electronic timepiece, the same, or different alarm times can be pre-set into two storage counters 3, 4, Fig. 2; when the actual time of day counted by a timekeeping counter 1 coincides with the content of counter 3 a once only momentary alarm signal is produced by an alarm device 5 whereupon the set time in counter 3 is cancelled, and a continuous alarm signal is produced when it coincides with the content of the counter 4 being terminated only upon resetting the counter 4 by external means and which will be repeated at the same time each day without further setting. Coincidence is detected by a circuit 2. The contents of counters 3, 4 are applied alternately to comparator circuit 2 via AND gates 23, 21 respectively and OR gate 22, the AND gate 21 being opened by each clockpulse (32 Hz) from a divider 7 when in the logic "1" state; the AND gate 23 is opened by the clockpulses when in logic "0" state. The once only alarm counter 3 is reset by the output of an AND gate 24 upon the occurrence of a clock signal and the coincidence signal and thereby the momentary alarm signal is terminated. A new alarm time will therefore require to be set into counter 3. A setting circuit for setting/correcting the time of day counter and setting the alarm time in counters 3, 4 is illustrated in Fig. 3 (not shown), and is responsive to selective manual operation of three switches (SW 1 , SW 2 , SW 3 ). Each time a switch (SW 1 ), (SW 2 ) is operated a respective shift register is shifted and its output controls transmission gates to individually connect the hours and minutes portions of the counters to the setting switch SW 3 . The alarm device may be a buzzer or an LED or LCD.
Patent GB-1200594-A (GB)
Title: Gas burners
Inventor: BUSBY PETER ALAN
IPC: F23D14/10
Filed: 1966-12-31
Abstract: 1,200,594. Gas burners. PARKINSON COWAN Ltd. 22 Dec., 1967 [31 Dec., 1966], No. 42436/66. Heading F4T. A gas burner for use with natural gas or other gases has a main gas chamber 4 with gas inlet 5 and flame ports 6 and an auxiliary chamber 7 with a slot-like gas port 8 to which gas is supplied from the main chamber 4 through slots 9, an auxiliary flame at the port 8 preventing lift off of the main flame and the burner being formed of upper and lower sheet metal pressings 1, 2 in face-to-face relationship and an intermediate strip section 3.
Patent GB-1405907-A (GB)
Title: Quarrying equipment
IPC: B02C21/02
Filed: 1972-09-15
Abstract: 1405907 Air cushion vehicles GEC-ELLIOTT MECHANICAL HANDLING Ltd 31 Aug 1973 [15 Sept 1972] 42888/72 Heading B7K Quarrying equipment, normally operating in a stationary condition, is provided with an air cushion device to enable it to be moved, the power unit for operating the quarrying equipment also driving the blower for generating the cushion. The machine comprises a base 1 provided with a flexible skirt 20 and a blower 9 to deliver pressure air through duets and openings 10 to the cushion. The base supports crushers 2 and 3, a feeder conveyer 4 and an output conveyer 7. In an alternative arrangement, (Fig. 2, not shown) the base is provided with a plurality of adjoining cushions and in a still further embodiment (Figs. 3 and 4, not shown) curtain air blowing slots are provided, with or without the skirt. A stillfurtherembodiment discloses two connected platforms each formed with a flexible skirt fed with cushion air from a blower on one platform.
Patent GB-1404235-A (GB)
Title: Process of and installation for purifying sewage
IPC: C02F3/12
Filed: 1972-09-15
Abstract: 1404235 Biologically purifying sewage C BRUCKER 15 Sept 1972 42974/72 Heading C1C In a biological process in which sewage is flowed through an aeration zone, the sludge which settles in the aerating zone is sucked therefrom and sprayed through the air back into the aerating aone by nozzles which direct the sludge in an upstream direction and which are mounted on a bridge which is reciprocably movable between the upstream and downstream ends of the zone. In the apparatus of Fig. 2, the aerating basin 1 has a bridge 3 reciprocable on tracks on the walls of basin 1, which bridge carries two scraper baldes 4 forming a V-shaped sludge trap, suction pipe 7, nozzle 8, deflector 9 and agitator 10. In use sewage is introduced from funnel 31 into compartment 13 where floating material (e.g. oil) is trapped. The sludge in basin is sucked up pipe 7 and sprayed via nozzle 8 back into basin 1. Aerated liquid is removed through telescopic pipe 17 to a settling basin 2 adjacent basin 1, which basin 2 may also comprise a scraper (not shown) mounted on a carriage (not shown). A suitable apparatus may comprise an annular aeration zone surrounding a circular settling zone. Another apparatus may comprise a single aeration and settling basin with the travelling bridge carrying a second suction pipe for discharging sludge to a drying bed.
Patent GB-1152078-A (GB)
Title: Compacting Packages of Finely Divided Materials
IPC: B65B61/24
Filed: 1967-09-22
Abstract: 1,152,078. Packaging finely-divided material; endless conveyers. P.P.G. INDUSTRIES Inc. 22 Sept., 1967 [26 Sept., 1966], No. 43203/67. Headings B8A and B8C. Packages of finely-divided material in airporous extensible wrapping are compacted by repeatedly applying and releasing a squeezing action along one axis, while allowing the package to spread in at least one other direction. In the machine illustrated siliceous pigment packaged in bags of kraft paper are passed along an endless belt 3 under a series of compacting belts 7. Each compacting belt is carried by a frame 5 supported by rollers 6 so that it can be pulled downwardly by springs, or by penumatic rams 9, to an extent limited by stops 10. The bags preferably have a higher water content than usual.
Patent GB-954658-A (GB)
Title: Improvements of rotary hook devices for sewing machines
IPC: D05B57/16
Filed: 1960-12-16
Abstract: 954,658. Sewing-machines. M. CERLIANI. Dec. 16, 1960 [July 13, 1960], No. 43327/60. Heading D1G. The bobbin case raceway of a rotary hook has one side formed by a C-shaped ring which is resiliently attached to the rotary hook so that dust and residues of thread are automatically eliminated from within the hook body by centrifugal force. The bobbin case has a rib 6 engaging a recess 4 formed in the rim of the hook cup 1 and secured therein by the projecting rim 13<SP>1</SP> of a C-shaped ring 13. A spring 8, secured at its centre to the inside of the hook cup by screws, has three arms 9 each tapped at its free end to receive a screw 16. Each screw 16 has a shank which passes through a hole in the hook cup and has a screwed portion 17 near its head which engages a tapped hole in the ring 13. Spaces 19 are maintained between the ring and cup to permit the passage of the thread residues &c. removed by centrifugal force. The hook beak 20 has a slot 21 which limits the movement of the ring 13. The Specification also describes several modifications to the screw 16 and the manner in which it is attached to the spring 8 and the ring 13.
Patent GB-924344-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/26
Filed: 1961-12-05
Abstract: 924,344. Gas burners. JUNKERS & CO. G.m.b.H. Dec. 5, 1961 [Dec. 6, 1960], No. 43407/61. Class 75 (1). A perforated tube gas burner producing butterfly flames from orifices 16 has side members 12 arranged along the burner walls to form, with the side walls of the burner, chambers 11 communicating through throttling bores 13 with the main burner chamber 14 and having outwardly directed auxiliary flame slits 15<SP>1</SP> and/or orifices 24<SP>1</SP>. A flame deflector may be disposed above the orifices. In another embodiment, Fig. 3 (not shown), the side members are joined to form an apertured cap member fitting over the burner and the auxiliary flame orifices may be of varying diameter and spaced at varying intervals. In another embodiment, Fig. 5 (not shown), the side members are again joined to form a cap, the auxiliary orifices are omitted and slits are formed between the lower edges of the cap and the burner walls. In a further embodiment, Fig. 4 (not shown), the side members are located inside the burner chamber 14 and are joined by a perforated wall, the auxiliary flame orifices being formed in the wall of the burner chamber 14 and the throttling bores in the side members.
Patent GB-1269171-A (GB)
Title: Means for controlling the speed of railway vehicles
Inventor: REICH SIMON
IPC: H02P23/00
Filed: 1970-09-14
Abstract: 1,269,171. Automatic speed control systems. GENERAL SIGNAL CORP. Sept. 14, 1970 [Sept. 15, 1969], No. 53822/70. Heading G3R. The speed of a railway vehicle is governed in accordance with the difference between desired and actual speed signals VD, VA. An axle frequency generator and shaper 11 provides the signal VA, and an oscillator 12 is connected to a generator 13 which provides signals defining time gate intervals. The duration of these intervals is modified by unit 14 in accordance with a wheelwear selector switch 15 which is manually reset from time to time. Counters 16, 17, are responsive during each time gate interval to the pulses from the generator 11, these pulses being applied through AND gate 18, which is enabled by the signals from the generator 13. The output of gate 18 is transmitted through a divider 19 to the counter 16. At the end of each timing interval as defined by the generator 13, a read pulse is delivered over line 29 which causes the counters 16, 17 to provide an output to a comparator and converter 20. The latter provides signals at either of its outputs 31, 32 as a function of the relative values of the signals VA, VD, which are converted from digital to analogue form. The signal on line 31 or 32 to counter 21 may be integrated to distinguish from noise pulses, the counter being stepped up or down to call for more or less tractive effort. The traction and braking apparatus 22 controls the speed of the vehicle, which is monitored for further correction during subsequent timing cycles of the generator 11. The read pulse which is delivered over line 29 also causes the counters 16, 17 to apply the signal VA to a storage and converter unit 24 which is reset by a pulse on line 30 from differentiator 25. The unit 24 is connected to a speed indicator 23.
Patent GB-1148888-A (GB)
Title: Improvements in or relating to directional aerials
Inventor: RADFORD MATTHEW FREDERICK
IPC: H01Q21/08
Filed: 1965-10-15
Abstract: 1,148,888. Aerials. MARCONI CO. Ltd. 26 July, 1966 [15 Oct., 1965], No. 43919/65. Heading H4A. In a directional aerial a plurality of pairs of convergent waveguides feed into a common radiating aperture, their other ends terminating in a further waveguide which is centrally fed, the arrangement being such that for each pair the lengths of their paths from the central feed to the said aperture are substantially the same. As described, a radiator fed from a central waveguide 11 is formed from side plates 1, 2 and a back plate comprising straight portions 3, 3 and angled outer portions 4, 5. The radiator is divided into cells forming a linear array by a series of sloping spacing plates 10, 8, 8... on one side of the centre and a series of oppositely sloping spacing plates 9, 7, 7 ... on the other side of the centre. The spacing plates stop short of the back plate, and the ends of the spacing plates 9, 10 are joined by a plate 6 which is parallel to the straight portions 3, 3. The top surface of the radiator may be made of two flat portions meeting at an obtuse angle at the centre in order to improve matching, and the ends of the spacing plates may be curved outwards for the same purpose (Fig. 4, not shown). The side plates 1, 2, may be extended beyond the ends of the spacing plates and may be bent to form a flared aperture. The central feed waveguide may be divided into two waveguides (11<SP>1</SP>), (11<SP>11</SP>), Fig. 3 (not shown), each supplying one side only of the aerial, and connected together by means of a 3dB directional coupler (12). This arrangement permits " static split " operation. The aerial is stated to be effective over a wide bandwidth, for example with a 3 : 2 ratio.
Patent GB-1070387-A (GB)
Title: Improvements in torch devices
IPC: F23D14/32
Filed: 1963-11-08
Abstract: 1,070,387. Blowpipe burners. A. D. L. BULGIN. Nov. 8; 1963 [Nov. 8, 1962], No. 44112/63. Heading F4T. A gas torch comprises an injector (12), Fig. 4 (not shown), adjacent primary air ports (7) in the end of a mixing tube (5) leading to a tubular flame former body 15 with a main gas passage restricted by a shoulder 20A which diverts gas from the main gas passage sidewardly to an annular space 23 formed between the flame former body 15 and an encasing shroud 21. The flame former body 15 is provided with gas ports 19 allowing the gas to pass into the annular space 23 and secondary air to enter the main gas passage upstream of the shoulder 20A. The injector 12 is screwed into an assembly having gauze filters (13). The torch may be used with butane and methane.
Patent GB-1023965-A (GB)
Title: Improvements in or relating to liquid level detectors
Inventor: LIDDIARD FRANCIS ERNEST
IPC: G01F23/24
Filed: 1963-11-11
Abstract: 1,023,965. Liquid level indication. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 11, 1964 [Nov. 11, 1963], No. 44464/63. Heading G1H. In a method of, or apparatus for, testing the presence or absence of liquid at a certain level a probe 1 has two pairs of electrodes 2, 3 and 4, 5 so placed that when both pairs of electrodes are emmersed in the liquid and a first alternating voltage is applied across electrodes 4, 5, Fig. 2 (not shown), a second voltage appears across the electrodes 2, 3 and this voltage is amplified to give an indication, such as the actuating of a lamp of the pressure of liquid.