baber/WOPTO huggingface dataset:
Patent GB-875074-A (GB)
Title: Improvements in or relating to processes and apparatus for moulding thermoplastic materials
Inventor: ALBRECHT RANSOM CARROLL
IPC: B29C43/16
Filed: 1957-12-02
Abstract: Polyethylene is modified with minor amounts of other materials, e.g. 1% or 2% of polyisobutylene or butyl rubber to improve stretching characteristics, 1% or 2% of hydrocarbon waxes such as paraffin wax or stearates such as calcium and butyl stearates to serve as lubricants in the forming operation, and fillers such as 10% calcium carbonate, 1% titanium dioxide or 15% calcium carbonate to improve stretching characteristics without substantially impairing the breaking point.  The oxidation of polyethylene surfaces using hydrogen peroxide in the presence of a detergent such as an alkyl sulphonate and optionally an accelerating agent is also described. The compositions may be formed into tubes, squeezable bottles or containers.
Patent GB-1436220-A (GB)
Title: Detergent motor fuels
IPC: C10L1/18
Filed: 1973-08-08
Abstract: 1436220 Fuel additive composition ROHM & HAAS CO 8 Aug 1973 [11 Aug 1972] 37540/73 Headings C5G and C5D A detergent composition suitable for addition to gasoline to clean the carburetter of an internal combustion engine comprises a mixture of (1) 20-250 parts by weight of a tertiary alkyl C 6 -C 24  primary amine of the formula where R 1 , R 2  and R 3  are alkyl groups containing in total 5-23 carbon atoms, at least one of R 1 , R 2 , and R 3  being branched and (2) 10 to 100 parts by weight of one or more surface active alkyl ammonium carboxylate salt-ethoxylated and/or propoxylated alkyl phenol esters of a trimer or dimer acid, having the formula where n=1À5 to 12À5 in the case of a single compound and is an average number in the case of a mixture; in the case of a trimer acid x is 1 or 2, y is 1 or 2 and x+y=3, or in the case of a dimer acid x=y=1; A = ethylene oxide or propylene oxide; R 4  is C 4-12  alkyl group; R is H or C 4-12  alkyl group; R 6  is a C 2-24  alkyl group which may be straight chain or branched chain, or may be amine substituted and Z is a saturated or unsaturated C 34 -C 51  hydrocarbon acid residue. 150-160 parts by weight of a hydrocarbon-soluble polybutene having a number average molecular weight of 700-3000 may be added to the composition. The polybutene may be replaced by mineral oil. Further the composition may also contain a minor amount of an alcohol, e.g. 5-15 wt. per cent of nbutanol and minor amounts of monocarboxylic C 18  acids in the ester or salt form may be tolerated. The composition may be added in an amount of 30-350 p.p.m. to the fuel. An extensive list of conventional additives is given.
Patent GB-849257-A (GB)
Title: Improvements in semi-trailer or trailer road vehicles
IPC: B62D59/02
Filed: 1957-12-03
Abstract: 849,257. Motor vehicle driving gear. SOC. NOUVELLE DES VEHICULES INDUSTRIELS TITAN. Dec. 3, 1957 [Dec. 3, 1956], No. 37663/57. Classes 79(2) and 79(3). A trailer or semi-trailer has at least one pair of wheels 1 driven at crawling speed by an auxiliary motor 9 coupled to the wheels through a freewheel device 12 which permits the wheels to turn freely when the towing vehicle takes over the whole of the drive at higher speeds. The motor 9 may be electric or hydraulic and supplied with power from a generator or pump 4 on the towing vehicle. Alternatively the motor 9 may be a selfcontained internal combustion engine. The drive includes a change-speed gear 13 and a clutch 14 which may be remotely controlled from the driver's cabin together with a remote control for locking the freewheel 12.
Patent GB-1018578-A (GB)
Title: A control unit for use in laundrettes
Inventor: MAXWELL STEWART ALFRED
IPC: G07F5/18
Filed: 1963-09-25
Abstract: 1,018,578. Coin operated laundry machines. FISHER & LUDLOW Ltd. Sept. 24, 1964 [Sept. 25, 1963], No. 37680/63. Heading G4V. A control unit includes coin freed means having a stepper advanced in accordance with the value of inserted coins, and controls the operation of a selected one of a plurality of laundering machines, e.g. washing machines and tumbler driers, at least one of which requires payment different from that of another. In the Figure, insertion of a sixpence changes over switch CS1, to deliver one pulse to a coil SC and advance a stepper S one step. Insertion of a shilling operates switches CS1 and CS2 in succession, to deliver two pulses. Insertion of a florin operates switch CS3, energizing a motor, a cam driven by which delivers four pulses, and then releases switch CS3, whereby the stepper position reflects the credit total, On insertion of a total of two, three, and four shillings, an arm of the stepper S energizes switch dial S1, S2, or S3, respectively, of a four-pole eight-way selector switch, each of dials S1, S2, S3 selecting one of eight machines. Thus on insertion of two shillings with the selector in the position shown, machine W3 is chosen. This energizes relay E/3, closing holding contact E2, and contact E1 to energize the machine control relay WR3. This holds itself on until de-energized by the machine timer motor contact TC3 opens, and energizes lamp IL3 and relay F/3. The latter opens contacts F1 and F2, so that relays E/3 and WR3 are held by their holding circuits. Also, contacts E3 and F3 are changed over. Should the selected machine be in operation, the changing over of contact F3 de-energizes relay B, to block the coin slots. When the machine is operated, current is fed through contacts E3 and F3 to relay VB and operations counter OC2. Relay VB closes a holding contact VB2, and contact VB1 energizes timer motor TM, solenoid CBS which passes the coins to a coin box, and the stepper reset coil SRC. Contact VB3 opens to de-energize the coin slot blocking solenoid B. Motor TM closes a holding contact CA1, and opens contact CA2 to break the hold of relay VB. A switch CR can be operated to energize a coin return solenoid CRS. The relays E/3, F/3, WR/3, and lamp IL3 are duplicated for each further machine, and relay VB and counter OC2 for each price. If the coin mechanism fails, a lock-operated switch MS and pushbutton P will operate the selected machine. A control unit door operated safety switch IS is provided.
Patent GB-1121600-A (GB)
Title: Balancing of precision rotary systems
IPC: G01R11/02
Filed: 1966-08-23
Abstract: 1,121,600. Balancing. ERNST U. WILHELM BERTRAM FABRIK PHOTOTECHNISCHER MESSGERATE. 23 Aug., 1966 [15 Sept., 1965], No. 37714/66. Heading F2U. In a precision rotary system, for a measuring, optical, or like instrument, wherein a balancing device thereof includes at least one weight adjustable relative to the system axis, the weight comprises a ring 6 which encircles with a clearance a shaft defining the system axis and is adjustable in all directions in its own plane. As shown, e.g. in a fully automatic photo camera, the rotary system comprises a photo-electric-controlled aperture plate 4 connected by an arm 3 to a moving coil 2. A system shaft 5 is encircled by the ring 6 which is adjustably clamped to the system. The ring may be clamped to the arm 3 and a further arm 7 by a spring device 8; alternatively, the ring may be of elastic material and may be constructed as a spring ring or disc. In Figs. 3, 4 (not shown), e.g. in a dial indicator, the rotary system comprises a pointer (10) and counterbalance (11) against which the ring 6 is clamped by a resilient (or Bellville) washer (12) reacting against a shaft collar (13). For adjustment, the system shaft is placed horizontally in low friction bearings of a test stand, after which, alternately, the system may be allowed to come to rest and the ring 6 moved only vertically upwardly, until balance is obtained.
Patent GB-1491439-A (GB)
Title: Devices for detecting and indicating the proportions of liquid and gas in fluid or emulsion
IPC: G05D21/02
Filed: 1974-11-07
Abstract: 1491439 Electro-physical measurement: foam density MALCOM-ELLIS (LIVERPOOL) Ltd 7 Nov 1974 [9 Aug 1973] 37877/73 Heading G1N [Also in Division G3 ] A detector for foam in a fluid (e.g. due to detergent in a washing machine) comprises an oscillator whose feedback is determined by electrodes subjected to the foam. As shown Fig. 3, resonant circuit 4, L 1  is connected to amplifier 2 which is provided with positive feedback by coupling coil L 2  and negative feedback from capacitor divider 6 plus the capacity between sensor electrodes 26, 28, (which depends on the dielectric constant of the liquid/foam between them). CONTROL: The liquid/gas proportions of the fluid may be controlled to a predetermined value e.g. by automatically regulating the amount of detergent added.
Patent GB-1015397-A (GB)
Title: Self extinquishing plastic compositions
Inventor: RAUSCHENBACH ROLF DIETER
IPC: C08K5/56
Filed: 1962-10-09
Abstract: A self-extinguishing plastic composition comprises (a) a polymer or copolymer of styrene or a -methyl styrene; (b) an organic chlorine compound in amount sufficient to provide a chlorine content of 2 to 7% by weight of the composition; (c) a complex MexAry- 1(CO)z- 1, wherein X and Y are 1,2 or 3, Z is from 1 to 13, (Y - 1) + (Z - 1) is from 2 to 12; Me is Cr, Mn, Fe, Co, Ni, Mo, Tc, Ru, Rh, Pd, W, Re, Os, Ir or Pt; and Ar is a substituted or unsubstituted cyclopentadienyl or benzene radical, and, optionally (for making the composition expandable; (d) a volatile liquid expanding agent which does not dissolve the polymer and which has a boiling point below the softening point of the polymer. The polymer may be a copolymer with acrylonitrile, butadiene, an ester of acrylic or methacrylic acid, vinyl carbazole or divinyl benzene. Component (b) may be chlorinated polyvinyl chloride, chlorinated polyisobutylene, chlorinated polystyrene, chlorinated paraffins, hexachlorocyclododecane, hexachlorocyclopentadiene, hexachloroendomethylene tetrahydrophthalic acid, tetrachlorobutyrolactone or tetrachlorobutanediol diacetate. Many suitable complexes (c) are specified, those used in the examples being ferrocene and various derivatives thereof, nickelocene, dibenzene chromium, carbonyls of Mn, Mo and Co, chlorobenzene chromium tricarbonyl and various cyclopentadienyl carbonyl complexes of Cr, Mo, Co, Ni and Fe.  The expanding agent (d) may be a hydrocarbon or halohydrocarbon and in the examples pentane and hexane are used.  The compositions may be obtained by lead polymerization of the monomer in the presence of the ingredients (b) and (c) \sB (d), or all the components may be dissolved in an organic solvent immiscible in water (e.g. methylene chloride or dichloroethylene), following which the solution is poured into water containing a protective colloid. The products find application as moulded articles, e.g. sheet, and as coatings.
Patent GB-863476-A (GB)
Title: Improvements in electrical dischargers for pyrotechnic devices, and pyrotechnic devices for use therewith
Inventor: SCHERMULY ALFRED JAMES
IPC: F41A19/69
Filed: 1958-11-27
Abstract: 863,476. Discharges for pyrotechnic devices. SCHERMULY PISTOL ROCKET APPARATUS Ltd. Nov. 26, 1959 [Nov. 27, 1958], No. 38269/58. Class 9(2). A discharger, for an electrically ignitible pyrotechnic device as in Specification 863,477 comprises an elongated guide tube 24 open at both ends and having a substantially straight longitudinal axis, so that for at least one instant during the passage of the device (not shown) along the guide, a potential difference applied across two members 25, each comprising a sprung ball contact, mounted on, or forming part of, the guide is applied across the electrically ignitible means of the device. Specification 622,029 also is referred to.
Patent GB-1156931-A (GB)
Title: Improvements in Waveguide Components
IPC: H01Q1/38
Filed: 1966-08-26
Abstract: 1,156,931. Waveguides and directional couplers. UNITED STATES OF AMERICA, ARMY, SECRETARY OF. 26 Aug., 1966 [26 Aug., 1965], No. 38311/66. Heading H1W. [Also in Division H4] A waveguide component comprises a rigid, low-loss, foam dielectric material having a dielectric constant approximately equal to that of air and having the internal shape of the component, selected areas of its surface being covered with a thin metallic coating sufficient to support r.f. currents. The material may comprise an organic foam, e.g. foamed polystyrene or polyurethane, or an inorganic foam e.g. borosilicate cellular glass or a material consisting of silica glass in the form of tiny spheres pressed together. After shaping, the dielectric material is de-glazed by abrasion (scrubbing with pumice and water may be necessary in some cases) and then cleaned by an appropriate alkaline or acid cleaner. A solution of stannous chloride is used to develop a film of tin on the surface which is then treated with an activator solution e.g. palladium chloride. The material is then immersed in an electroless copper bath containing Fehling-formaldehyde solution where chemical reduction takes place. Apertures in the coated surface may be produced by milling or by masking appropriate areas before the plating process. The antenna shown comprises slots 13 in a metallic coating 11 upon the surface of a foam dielectric body 12. Waveguide channel 14 are defined by internally plated holes 15 which behave as metal posts. Conventional waveguides and waveguide flanges may be made using the method of the invention (Fig. 4, not shown). Fig. 3 shows in a self-explanatory manner the way in which the invention is applied to the manufacture of a directional coupler.
Patent GB-817621-A (GB)
Title: Method of and apparatus for producing film
IPC: B29C48/32
Filed: 1956-12-17
Abstract: <PICT:0817621/IV (a)/1> <PICT:0817621/IV (a)/2> <PICT:0817621/IV (a)/3> In the manufacture of tubular films, a molten thermoplastic mass is continuously fed through a passage, then parted and reunited, then homogenized by simultaneously increasing the velocity of the mass and applying external rotational motion, and finally extruded through an annular orifice.  As shown, passage 14 conveys the molten thermoplastic mass to hollow cylindrical core 28, around a "spider" whose radial legs 22 effect partings in the flow path of the mass, the separate streams of which are reunited in lower cup section 56 disposed in concentric relationship to permit uninterrupted passage to upper cup section 50 and annular orifice 46.  Above the lower cup section 56 is a rotatable section 76 provided with teeth 84 co-operating with pinions 86 driven by motor 102 through shafts 88, 92.  The constricted space between core 28 and convex inner surface 110 of section 76, and the rotation of section 76, produce increased velocity and simultaneous circumferential homogenization of the mass. Heating chambers 120, 126, 132, 140, 148, 154, 160 may have steam at the appropriate temperature passed through them to maintain even heating throughout the apparatus.  Passage 111 may supply compressed air for inflation of the extruded film, which is withdrawn by squeeze rolls 1121, 112, the latter being rotatably mounted.  Specifications 654,550 and 716,160 are referred to.
Patent GB-963498-A (GB)
Title: Apparatus for closing filled bags
IPC: B65B51/07
Filed: 1961-10-27
Abstract: 963,498. Sewing machines. RALSTON PURINA CO. Oct. 27,1961 [Dec. 13, 1960], No. 38503/61. Heading D1G. In a sewing machine for closing filled bags, the closed mouth of a bag on leaving the sewing position passes between a pair of rolls which are movable apart but which are biased together, the rolls being driven at a speed higher than the speed at which the work is fed past the stitching pring, whereby the thread chain trailing from the bag is held taut and can thereby be engaged with certainty by means adapted to move the thread into engagement with a thread cutter offset from the line of stitching. Filled bags B are passed in succession past the horizontal needle N of a sewing maching 3 which also comprises a feed dog 5 and presser plate 7. Positioned on the outlet side of the sewing machine is a pneumatic jack 11 the plunger 13 of which carries a fork 17 adapted, on actuation of the jack, to move the trailing thread chain C into engagement with a continuouslyoperated thread-cutter blade 9 offset from the line of stitching. The rigidity of paper bags holds the thread chain taut and in alignment with the fork 17, but in order that the chain-cutting device may operate with certainty on collapsible fabric bags, the filled mouth of each bag is passed between a pair of rolls 19, 21 which are driven at a speed about 50% higher than the feeding speed of dog 5. Roll 19 is carried by a shaft 23 journalled in a fixed sleeve 25 and driven via a universal coupling 61 and gears 59 form a shaft 63. Roll 21 is carried by a shaft 33 journalled in a sleeve 35 from which projects an arm 43 provided with a pintle 45 pivoted on a fixed bracket 51. A torsion spring acting on pintle 45 biases roll 21 into engagement with roll 19 and a gear pinion 39 on shaft 33 into member with a gear pinion 37 on shaft 23. Latch means, acting on arm 43, are provided for holding the rolls and pinions disengaged.
Patent GB-1394977-A (GB)
Title: Process for the treatment of dinitriles
IPC: C07C255/04
Filed: 1973-08-15
Abstract: 1394977 Treatment of aliphatic dinitriles DU PONT OF CANADA Ltd 15 Aug 1973 [16 Aug 1972] 38515/73 Heading C2C A process for the treatment of an aliphatic dinitrile containing a hydrolysable impurity comprises injecting a gas or water or mixture thereof at a temperature of at least 100‹ C. into the dinitrile and subsequently removing the gas or water or mixture thereof from the dinitrile at substantially the same rate at which it is injected thereinto; the gas or water or mixture thereof being inert with respect to the dinitrile under the process conditions and there being present either initially or by injection at least the stoichiometric amount of water required for hydrolysing the impurity. The gas is suitably nitrogen and the purification may be carried out in the presence of an acidic catalyst. Examples describe the removal of 2-cyanocyclopentylideneimine from adiponitrile.
Patent GB-1002822-A (GB)
Title: Improvements in runners for umbrellas
Inventor: BROOK ERIC PERRY
IPC: A45B25/06
Filed: 1961-10-28
Abstract: 1,002,822. Umbrellas &c. BROOK & BURGESS (PLASTICS) Ltd. Oct. 29, 1962 [Oct. 28, 1961], No. 38650/61. Heading A4P. A runner A for an umbrella &c. is made of plastic and has a metal or nylon ring d incorporated during the moulding process. The ring is near the end of the runner and reinforces the surface engaged by retaining springs c on the stick B during folding and unfolding of the umbrella canopy. A recess or groove d<SP>1</SP> in the ring is undercut, or the outer surface of the ring is knurled, to key with the plastic.
Patent GB-1086648-A (GB)
Title: Improvements in or relating to arrangements for identifying push-button signals
IPC: H04Q1/38
Filed: 1965-09-10
Abstract: 1,086,648. Automatic exchange systems; circuits employing bi-stable magnetic elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 10, 1965 [Sept. 15, 1964], No. 38722/65. Headings H3B and H4K. In a telephone system in which the digital information signals are D.C. signals of different levels produced by the subscriber inserting a combination of a diode and resistance into the loop and the exchange applying in succession two interrogating voltages of opposite polarity, the exchange receiving circuit identifying the signals has a number of saturable magnetic cores arranged to switch at different levels of the line current due to different degrees of bias applied to them, which bias is automatically adjusted prior to dialling in dependence upon the resistance of the line. In the receiving circuit shown in Fig. 1 cores 13 . . . 16 provide the identification and core 17 the adjustment. The line current flowing in windings 18 and 19 polarizes the cores in a direction opposite to that of the polarizing bias windings 20. The readout pulse on winding 21 will for the identifying cores 13. . . 16 only give an output from winding 22 for those cores which have not already switched i.e. for those with switching levels higher than the D.C. signal. For core 17 the read-out pulse only produces an output from winding 22 if the core has already switched, i.e. the D.C. signal is higher than the level of core 17. Upon the initial closing of the loop and prior to dialling the line current is high and core 17 will have switched and therefore give an output for each read-out pulse. By means of these pulses which are provided every 5 msecs. the trigger arrangement 29 is repeatedly opened to raise by steps the voltage upon capacitor 33, providing a bias for transistor 35 which controls the current in the additional polarizing windings 23. The polarization of all the cores is thereby raised until the level of core 17 is above the line current and output pulses from it no longer appear. The receiving circuit is now matched to the loop resistance and dialling tone is supplied. The signal value for each digit appears as two sets of pulses at output windings 22 of cores 13-16. The amount of additional polarization decreases due to the discharge of the capacitor and it can be readjusted during the inter-digital pause.
Patent GB-1216278-A (GB)
Title: Production of c7 olefins
Inventor: MCGRATH BRIAN PATRICK
IPC: C07C2/30
Filed: 1968-08-14
Abstract: 1,216,278. Heptenes. BRITISH PETROLEUM CO. Ltd. 6 June, 1969 [14 Aug., 1968], No. 38839/68. Heading C5E. C 7  Olefins are obtained by (a) catalytically disproportionating a mixture of butene-1 and butene-2 to yield propylene and pentene-2, and catalytically co-dimerizing the pentene-2 thus obtained with ethylene. Suitable disproportionation catalysts are Mo/Al 2 O 3 Œcobalt oxidesŒ alkali or alkaline earth metals, carbonyls of Mo, W or Re supported on Al 2 O 3 , SiO 2  or Al 2 O 3 / SiO 2 , and preferably Re 2 O 7 /Al 2 O 3 . Suitable codimerization catalysts are alkali or alkaline earth metals or hydrides, and organo-metallic alkali metal compounds and preferably Na or NaH supported on K 2 CO 3 . The feed to step (a) may be an n-butene raffinate stream, which may first be treated by (i) selective hydrogenation to remove dienes and acetylenes, e.g. over a sulphided nickel on sepiolite catalyst, and/or (ii) isomerization to increase the butene-2 content, preferably simultaneously with (i) by suitable adjustment of the reaction conditions. In the example, the C 7 -olefin fraction produced comprises 81.7% 3-ethyl-pentene-1 with small amounts of other heptenes.
Patent GB-1155866-A (GB)
Title: A Method Of Producing Concrete Piles For Foundations
Inventor: PLEUGER FRIEDRICH WILHELM
Filed: 1966-08-31
Abstract: 1,155,866. Concrete piles. F. W. PLEUGER. 31 Aug., 1966 [8 Sept., 1965], No. 38876/66. Addition to 1145914. Heading E1H. In a method of producing pile foundations of concrete which includes the steps of inserting an open or closed bottomed tube 5 consisting wholly or in part of water soluble material into a drilling pipe 4 placed in the earth layers 1 and 2, then filling the water soluble tube with the concrete mixture 8 and afterwards removing the drilling pipe 4 as disclosed in Specification 1145914, a cylindrical cage 10 of wires is arranged around the tube 5 before inserting the tube into the drilling pipe. The wires of the cage 10 prevent a thickening of tube 5 due to the hydrostatic pressure of the wet concrete column so that the drilling pipe 4 can be removed without difficulty after filling the tube 5 with the concrete mixture.