baber/WOPTO huggingface dataset:
Patent GB-1055740-A (GB)
Title: A composition comprising a polymer of a cyclic ester of a hydroxycarboxylic acid and a stabilizer
Inventor: KLOOTWIJK ARIE
IPC: C08K5/39
Filed: 1965-11-24
Abstract: Polyesters obtained by polymerizing lactones are stabilized by adding to them a compound containing the group <FORM:1055740/C3/1> or <FORM:1055740/C3/2> where n is 1 to 40 and A is chromium, manganese, iron, cobalt, nickel or copper.  Preferred stabilizers are those of formula <FORM:1055740/C3/3> , <FORM:1055740/C3/4> , <FORM:1055740/C3/5> and <FORM:1055740/C3/6> where R5, R6, R7 and R8 are hydrogen atoms or substituted or unsubstituted hydrocarbon groups.  The lactone may be a lactide, a betalactone or a deltato eta-lactone.  The composition may also contain an anti-antioxidant, e.g. phenyl - beta - naphthylamine; 2,6 - diisopropylphenol; 2,6 - di - tert - butyl - 4 - methylphenol; 2,2 - bis - (31,51 - di - tert - butyl - 41-hydroxyphenyl) - propane; 1,3,5 - tris - (31,51-di - tert - butyl - 41 - hydroxybenzyl) - 2,4,6-trimethylbenzen or tri-(nonylphenyl) -phosphite. The stabilizers and anti-oxidants may be added during polymerization or to the preformed polymer, possibly in solution (e.g. in an aromatic hydrocarbon, or in an alcohol, ether or ketone). Examples describe the stabilization of polymerized alpha, alpha-dimethyl-beta-propiolactone.
Patent GB-994740-A (GB)
Title: Improvements in or relating to methods of forming super-conductive metal layers on electrically non-conductive supports
IPC: C23C18/16
Filed: 1963-12-18
Abstract: A super-conductive layer of lead or tin is formed on an electrically non-conductive support, e.g. cellulose triacetate foil, by exchanging electrochemically a first metal layer, e.g. of copper, in a desired pattern on the support at least partly for lead or tin by contact with a solution containing ions of lead or tin, e.g. an alkaline solution containing cyanide ions and SnCl2 (stannate ions) or Pb(NO3)2 (plumbate ions), the first metal having a higher electrode potential relative to the lead or tin ions in the solution.  For cryotrons, the base may be suitably prepared for the first metal layer, e.g. to be electrodeposited, by forming thereon photographically a thin pattern of noble metal such as Hg, Ag, Au, or Pt.  Specification 953,431 is referred to.
Patent GB-1318796-A (GB)
Title: Thiolcarbamates
IPC: A01N47/18
Filed: 1970-10-22
Abstract: 1318796 Thiolcarbamates BADISCHE AMLIN- & SODA-FABRIK AG 22 Oct 1970 [23 Oct 1969] 50119/70 Heading C2C Novel thiolcarbamates of the formula wherein R 1  is a C 1-4  alkyl group, R 2  is bicycloalkyl, tricycloalkyl or tetracycloalkyl having 7 to 12 carbon atoms, R 3  is a C 1-4  alkyl, C 1-4  chloroalkyl, C 2-4  alkenyl or C 2-4  chloroalkenyl group and X is an oxygen or sulphur atom; are obtained by reacting appropriate amines (R 1 -NH-R 2 ) with chlorothioformic acid esters (Cl-CO-S-R 3 ) or with carbon disulphide and halides (R 3 -Y, where Y is chlorine, bromine or iodine). Herbicidal compositions comprise the above thiolcarbamates together with solid or liquid carriers.
Patent GB-1529730-A (GB)
Title: Conveyor systems
IPC: B65G17/06
Filed: 1975-12-08
Abstract: 1529730 Discharging endless chain conveyers KOSAN CRISPLANT A/S 6 Dec 1976 [8 Dec 1975] 50198/75 Heading B8A In normal running of a conveyer trolley (2) (Fig. 1, not shown), a sector-shaped member 16 is in the position A. At a discharge station B, (provided discharge is desired at this particu ar station) a member 42 is projected so as to engage a flank of the member 16 and deflects it. This causes rotation of an internally toothed annular gear 28<SP>1</SP> which is in permanent mesh with a gear wheel 30<SP>1</SP>. The latter is rigid with a rack disc 34 which is thereby swung into engagement with a fixed rack 36. As the conveyer proceeds, the interengagent between the rack disc 34 and the rack 36, causes rotation of the disc 34, and consequent eccentric load-discharging lateral movement of a load carrying member (22). There may be a second rack 60 for causing discharge towards the other side of the conveyer. Instead of the gear 28<SP>1</SP> and gear wheel 30<SP>1</SP>, there may be respective annular members (28<SP>11</SP>) and (30<SP>11</SP>) (Fig. 3, not shown), which are not in actual engagement in the normal operation (i.e. other than in the vicinity of a discharge station) of the conveyer.
Patent GB-1242108-A (GB)
Title: Improvements in or relating to master cylinders
IPC: B60T11/22
Filed: 1968-10-23
Abstract: 1,242,108. Master cylinders for hydraulic braking systems. ALFRED TEVES G.m.b.H. 23 Oct., 1968 [23 Jan., 1968], No. 50360/68. Heading F2F. In a master cylinder having a vertically disposed operating cylinder for hydraulic braking systems, a thrust member (e.g. a piston 3 in Fig. 1 or a cylinder in Fig. 3) is movable in the vertical direction by an actuating linkage (not shown) at the lower end of the master cylinder, the thrust member being provided with a compensating bore 12, connected to a compensating reservoir 10, disposed at the highest point of a pressure medium chamber 15 associated with the thrust member such that, upon initial movement of the thrust member, the latter is displaced relative to a further member (sealing gasket 5 in Fig. 1, sealing gasket 32 in Fig. 3) which is at least initially stationary to cause the compensating bore 12 to be closed. In the embodiment shown in Fig. 1 reciprocal movement of the piston 3 closes the bore 12 in the upper part of the piston as the latter moves through the sealing gasket 5 retained by a filling disc 37 and a stop disc 7. The hydraulic pressure created in the pressure chamber 15 is then transmitted to the working cylinders of the brakes (not shown), via connections 14. When the master cylinder piston 3 is returned by the action of a spring 6 when the brake pedal is released, loss of fluid is replenished by flow from the reservoir 10 via a longitudinal bore 11 in the piston 3 and the compensating bore 12. Vacuum destroying holes 13 are provided in the stop disc 7. In the embodiment illustrated in Fig. 3 the piston 3 is fixed at its upper end to a bracket 33 and the cylinder 1<SP>1</SP> is urged upwards against a spring 31 by an actuating linkage (not shown) to cause pressurization of the chamber 15 such that the wheel brake cylinders (not shown) are actuated via bore 11 in the fixed piston and a connection 30. Fig. 2 (not shown) illustrates an alternative embodiment applied to a tandem master cylinder and Fig. 4 (not shown) illustrates a fixed piston arrangement similar to that described above with reference to Fig. 3 modified in that the compensating reservoir 10 moves together with the cylinder 1<SP>1</SP> to actuate the wheel brake cylinders. Reference has been directed by the Comptroller to Specification 979,810.
Patent GB-1452334-A (GB)
Title: Aircraft doors
IPC: B64C1/14
Filed: 1973-10-30
Abstract: 1452334 Sliding door for aircraft BOEING CO 30 Oct 1973 50380/73 Heading E2M An aircraft door assembly has an operating mechanism comprising, first and second tracks 34, (32), Fig. 1 (not shown), mounted on wall structure (12) and extending one on each side of the opening from the lower end to the upper end of the opening, a central third track 92 mounted on wall structure above, the opening and extending upwardly from a position adjacent the opening, and a door 24 having followers 40, (38) and 42 for engagement in and movement along tracks 34, (32) and 92, respectively, the followers 34 and (32) being mounted on adjacent the lower corners of the door and the follower 42 being mounted centrally of the upper end of the door. The lower ends of the tracks curve inwardly upwardly to move the door inwardly during the initial opening movement. The followers comprise arms each provided with track-engaging rollers 80, 82, 88, 90. The upper follower 42 is pivotally connected to a link 104 in a continuous chain 56 driven by assembly (44), Fig. 5 (not shown), retains the door in the closed position, and is released manually from the inside and outside of the aircraft by means of handles (126, 152). Disengagement of the latching assembly also energises the drive motor (50). Opening of the door is assisted by means of a pair of compressed gas cylinders (72) having their pistons acting on the shaft (58) of the motor (50) via a rack and pinion arrangement (68, 66, 62, 60).
Patent GB-963684-A (GB)
Title: Improvements in or relating to friction welding
IPC: B23K20/12
Filed: 1960-07-25
Abstract: 963,684. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. July 25, 1960 [Aug. 12, 1959], No. 50388/63. Divided out of 963,681. Drawings to Specification. Heading B3R. The subject-matter of this Specification is substantially the same as matter described in Specification 963,681, but the claims are directed to a method of friction welding which includes rotating at least one of the workpieces relative to the other, forcing the pieces together at a first pressure to generate heat from friction at the contact area until material in the area becomes molten or plastic, stopping the relative rotation and forcing the pieces together at an increased second pressure until the weld is complete.
Patent GB-1491588-A (GB)
Title: Mattress foundation
IPC: A47C27/04
Filed: 1975-12-11
Abstract: 1491588 Mattresses SIMMONS CO 11 Dec 1975 [16 Dec 1974 28 Nov 1975] 50840/75 Heading A4M A mattress support comprises a base frame 15 supporting a structure rising from the base frame to provide an elevated supporting platform which structure is substantially co-extensive with the area of the mattress to be supported and includes a central area which is substantially rigid and unyielding, and a peripheral area which is resiliently deformable under the weight of a person sitting on an edge of the mattress. In one embodiment, Fig. 3, the base 15 is spanned in one or two directions by arched beams 19 which support a relatively stiff sheet 21 of plywood, chip or fibre board, or a metal or plastics mesh. The periphery of the sheet 21 is resiliently supported by coil springs carried by the frame 15. The sheet 21 may rest on sound deadening insulation 20 in the form of a fibrous batt secured to the beams 19. A padding layer 35 overlies the sheet 21. In another embodiment, Figs. 9, 10 (not shown), the stiff sheet (21') is coextensive only with the overall area defined by the upper surfaces of the beams 19, the peripheral springs being secured to the beams and to a border wire. In another embodiment, the base frame 45 is formed in one piece as an inverted pan with a rolled edge 49 for reinforcement and with integral ribs 47. A collar 51 of foamed polyurethane surrounds the bar and is covered with a topper pad 13. In another embodiment, Fig. 17, wire supports 57 are carried by slats 55 spanning the base frame 15a and are secured together by tie wires 68 which may extend both longitudinally and transversely. Alternatively, Fig. 19 (not shown), the wire supports 57 may carry a wire grid.
Patent GB-1330012-A (GB)
Title: Agglomerated magnesium chloride
IPC: C01F5/30
Filed: 1970-10-28
Abstract: 1330012 Anhydrous MgCl 2  NORSK HYDRO AS 28 Oct 1970 [29 Oct 1969] 51271/70 Heading C1A Anhydrous MgCl 2  is prepared by (a) agglomerating particles of MgCl 2  hydrate, containing not more than 4 moles of water per mole of MgCl 2 , with molten MgCl 2  hydrate or an aq. soln. of MgCl 2 , into spheroids and then (b) dehydrating the agglomerates in one or more stages, in a countercurrent flow of hot gas, the only or final dehydration stage being carried out in a countercurrent flow of HCl. The particles of MgCl 2  hydrate used may be prills having a size of 0À2-1À0 mm. The molten MgCl 2  hydrate may contain 3À9-11À0 moles of water per mole of MgCl 2  and the spheroidal agglomerates formed may contain 2À0-3À5 moles of water per mole MgCl 2  and have a diam. of 5-20 mm. The agglomeration may be carried out on a rotating disc or in a granulating drum. The dehydration may be carried out in a shaft kiln.
Patent GB-1135186-A (GB)
Title: Improvements in or relating to frequency synthesizer systems
IPC: H03L7/183
Filed: 1965-12-03
Abstract: 1,135,186. Automatic frequency control systems. HOFFMAN ELECTRONICS CORP. 3 Dec., 1965 [8 April, 1965], No. 51413/65. Heading H3A. A frequency synthesizer system comprising a voltage controlled oscillator 10 feeding a controlled divider 13 which provides one input to a phase detector 15 controlling the frequency of oscillator 10, is characterized by the provision of an offset divider 11 which opens the gate 12 after it has counted to its set value. The oscillator 10 may be the local oscillator of the receiver and the offset divider is set to correspond to the intermediate frequency (e.g. 8 kc/s), so that if the divider 13 is set to 61.9 the oscillator 10 oscillates at 69À9 kc/s. and the receiver is sensitive to an input frequency of 61À9 kc./s. In this example the reference frequency 16 is 100 cycles/sec, and the offset divider 11 is set to a count of 80; the divider 13 re-sets itself and the divider 11 each time it reaches its set value. To bring the frequency within the range of detector 15 the output of divider 13 is fed to a frequency discriminator 18 which provides a second input to the frequency control circuit 17.
Patent GB-1315424-A (GB)
Title: Process for producing semi-synthetic penicillins
IPC: C12N9/78
Filed: 1971-11-08
Abstract: 1315424 Producing semi-synthetic penicillins ALFA FARMACEUTICI SpA 8 Nov 1971 [7 Nov 1970] 51807/71 Heading C2A A process for producing penicillins of Formula I wherein R is an α-aminobenzyl group, an α- carboxybenzyl group, a 2- or 3-thienylmethyl group, a 2- or 3-thienylaminomethyl group or an isoxazole group of Formula III in which R 1  is phenyl, 2-chlorophenyl or 2,6-dichlorophenyl or R is a group of Formula IV wherein R 2  is aryl, aryloxy or arylmercaptyl which may optionally be substituted with one or more halogen atoms, R 3  is hydrogen, an alkyl group having one to ten carbon atoms, an amino group or a monoalkyl or dialkylamino group wherein the alkyl moieties have from 1 to 6 carbon atoms, a carboxyl group, a carboxyalkyl group wherein the alkyl moiety has from 1 to 8 carbon atoms, a carboxymethylacetoxy group or a carboxybenzyl group, or R 2  and R 3  together form a cycloaliphatic ring having 5 to 7 carbon atoms, R 4  is an amino group or a monoalkyl or dialkylamino group wherein the alkyl moieties have from 1 to 6 carbon atoms and non-toxic salts and esters thereof, comprises the enzymatic dephenylacetylation of a diacylpenicillin of Formula II by means of penicillin acylase. The dephenylacetylation may be carried out at a temperature of from 30‹ to 42‹ C. at a pH of from 7À5 to 8À0. The penicillin acylase used may be produced by a micro-organism of the genus Alternatia, Aspergillus, Botritis, Cephalosporium, Cryptococcus, Emericellopsis, Eipcoccum, Epiolermophyton, Fusarium, Mucor, Penicillum, Phoma, Trichoderma, Trichophyton, Trichosporon, Streptomyces, Aerobacter Alcaligenes, Bordetella, Cellulomonas, Corynebacterium, Erwinia, Escherichia, Flavobacterium, Micrococcus, Proteus, Pseudomonas, Salmonella, Sarcina, Xantomonas, Torulopsis, Rhodotorula or Arthrobacter. Specific strains which may be used include Escherichia coli and Aerobacter aerogenes. Penicillins which may be produced by this process include oxacillin, cloxacillin, dicloxacillin, ampicillin, phenethicillin and methicillin. Reference has been directed by the Comptroller to Specification 922,278, 978,229, 1,004,670, 1,017,615 and 1,227,042.
Patent GB-1160068-A (GB)
Title: Elastic Thermoplastic Moulding Compositions with High Stability to Heat and Light
Inventor: OTT KARL HEINZ
IPC: C08F279/04
Filed: 1967-01-12
Abstract: 1,160,068. Stabilized ABS polymers. FARBENFABRIKEN BAYER A.G. 12 Jan., 1967 [12 Jan., 1966], No. 51929/68. Divided out of 1,160,067. Headings C3G and C3P. A moulding composition comprises (a) a mixture of a conjugated diene polymer and a styreneacrylonitrile copolymer, or (b) a conjugated diene polymer grafted with styrene- and acrylonitrile and optionally a styrene-acrylonitrile copolymer wherein the sum of styrene and acrylonitrile in (a) or (b) must not be less than 50% by weight of the total of (a) or (b) and the styrene and acrylonitrile may be wholly or partially replaced by their alkyl derivatives, which composition contains as stabilizer 0À1-3% by weight, based on the weight of (a) or (b) of a mixture of 2,6-ditertiary butyl-p-cresol and an alkyl ester of thiodipropionic acid, the ratio by weight between the stabilizing components being 1: 6 to 6:1. Methacrylic acid esters may be included in the graft polymer superstrates . In the examples, aqueous emulsions of 2,6-di-tertiary butyl-pcresol and dilauryl thiodipropionate are blended with latices of polybutadiene grafted with styrene and acrylonitrile and a styrene-acrylonitrile copolymer. The mixture is coagulated and a lubricant added. Similar blends are prepared, in which distearyl- or ditridecylthiodipropionate replaces the dilauryl ester or an alphamethyl styrene-acrylonitrile copolymer replaces the styrene-acrylonitrle copolymer.
Patent GB-1084899-A (GB)
Title: A lockable push-button switch
IPC: H01H27/06
Filed: 1965-12-09
Abstract: 1,084,899. Switches held set and freed mechanically. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Dec. 9, 1965 [Dec. 12, 1964], No. 52289/65. Heading H2B. [Also in Division E2] On depression of a push-button slidably mounted in the housing 1, 4 of a switch having a contact set 2 operated on depression of the button, a projection 7 on the pushbutton momentarily pushes aside a catch 3 pivotally mounted on the housing so as to latch the pushbutton in its depressed position (Fig. 2). To release the button, it is first unlocked by a key which is inserted into a cylinder 16 in the button and rotated to the left. This rotates the cylinder 16, and a stud 8 thereon projecting through a circumferential slot in the button is also rotated and pushes catch 3 aside to release projection 7 and allow the button to return to its undepressed position under spring action. In a further form (Figs. 3, 4), when the push-button is undepressed the stud 8 engages a fixed detent (12, Fig. 4) and before the push-button can be depressed it has to be unlocked by the key so as to disengage the stud 8 from the detent (12). In another form (Fig. 5), additional contact set (14) is operated each time the button is depressed or released.
Patent GB-1514833-A (GB)
Title: Portable battery operated device including a switch
IPC: H04R5/033
Filed: 1975-05-09
Abstract: 1514833 Headsets; receiver on-off switching T G PALMAER 9 May 1975 52333/77 Divided out of 1514832 Headings H3Q and H4J A headphone 15 of a battery operated pair of headphones is mounted by a pin 17 on a supporting bracket 14 attached to a head band 13 such that when the headphones are mounted on a person's head, the pin 17 moves a spring contact 21 located within the bracket 14 into engagement with a contact arm 19 of a switch whereby a battery 18 is connected with a radio receiver. When the headphones are removed, the spring contact 21 moves away from the contact arm 19 so as to switch off the receiver.
Patent GB-1409828-A (GB)
Title: Pharmaceuticals and process for their preparation
IPC: C07D401/14
Filed: 1973-11-12
Abstract: 1409828 Indole-derived imines BRISTOLMYERS CO 12 Nov 1973 [13 Nov 1972] 52484/73 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein R<SP>1</SP> is H or C 1-4  alkyl, Y is H or C 1-4  alkoxy, and A is wherein a is -CH:CH- or -CH 2 OH 2 -; X is H or C 1-4  alkoxy; R<SP>2</SP> is H and R<SP>3</SP> is C 1-4  alkyl or C 3-6  cycloalkyl, or R<SP>2</SP>C :NR<SP>3</SP> form a 5-membered ring, possibly substituted by up to 2 C 1-4  alkyl groups. In examples, these compounds are prepared by (1) (the dihydro-compounds in which R<SP>1</SP> is H: Ia) reacting in presence of POCl 3 , (a) a 6-X-quinoline, benzo[f]quinoline, isoquinoline or phenanthridine, with (b) a 5-Y- indole and (c) R<SP>2</SP>CONHR<SP>3</SP>; (2) (the dihydrocompounds in which R<SP>1</SP> is C 1-4  alkyl : Ib) reacting Ia with NaH and an alkyl halide; and (3) (the tetrahydro - compounds) catalytically hydrogenating Ia or Ib. Therapeutic compositions having diuretic and/or antithrombogenic activity comprise compounds of the above Formula (I), and may be administered orally or parenterally.
Patent GB-1441083-A (GB)
Title: Silicon polishing solution
IPC: H01L21/306
Filed: 1974-12-05
Abstract: 1441083 Etching INTERNATIONAL BUSINESS MACHINES CORP 5 Dec 1974 [28 Dec 1973] 52612/74 Heading B6J A solution for etching silicon comprises an aqueous solution of cupric nitrate, nitric acid and ammonium nitrate, to which has been added ammonium fluoride.
Patent GB-1320158-A (GB)
Title: Spring urged pyrotechnically actuated control elements
IPC: F42B3/00
Filed: 1970-11-05
Abstract: 1320158 Pyrotechnical actuator DYNAMIT NOBEL AG 5 Nov 1970 [5 Nov 1969] 52770/70 Heading F3A [Also in Divisions F2 and H1] A pyrotechnical actuator for control purposes comprises a propellant charge 16 which, when fired, generates sufficient gas to drive a non- fusible support disc 17, of copper or brass, against the spring-biased rod 8 so as to fracture the disc and allow the rod, with its extension 2, to be moved into its actuated position by a spring 6, see Fig. 4 (not shown). The charge 16 may be ignited through a delay charge 26, by an igniting charge 25 fired through electrical connections 12, 13. In Fig. 1 (not shown) no delay charge is used, there being only a single, propellant charge having suitable ignition means such as a wire fuse or a combination fuse. In some cases a combination fuse alone may be sufficient. The charge may be covered with lead-tin foil and lacquered to exclude moisture.
Patent GB-1087778-A (GB)
Title: Telephone holder
IPC: H04M1/05
Filed: 1965-12-13
Abstract: 1,087,778. Supporting telephone handsets. PHILIPPE DARRASSE. Dec. 13, 1965 [Dec. 14, 1964], No. 52808/65. Heading H4J. A shoulder rest for a telephone handset comprises a rigid, expanded plastics, shaped base portion 1 having serrations or, the like on its underside and two bars 4, 5 projecting from its upperside. A two-part, vice-like structure 7 (Figs. 3-7, not shown) is assembled so as to grip the handset and is then locked on to bars 4, 5 either by means of a removable, resilient plate 20 which clips into recesses formed in the bars (Fig. 8, not shown) or by means of nuts (Fig. 9, not shown). A safety rod 34 insertable into blind holes 31 or 32 for left- or right-handed use engages the back of the user's neck.
Patent GB-1101954-A (GB)
Title: Building product
IPC: C04B14/14
Filed: 1964-12-31
Abstract: A unified building product in sheet form comprises thermally expanded perlite bonded by a dewatered and dried gelatinous binder which, in its original hydrated state, has a low freeness.  The binder may be made by subjecting an aqueous slurry of cellulosic fibres to a series of refining and gelatinizing steps.  The product may also contain minor proportions of ceramic clay, boric acid as a fire-retardant, a wax, e.g. microcrystalline or paraffin wax, for water-repellency, or alum.  It may be used as insulating floor underlay, ceiling or wall tiles or insulating board.