baber/WOPTO huggingface dataset:
Patent GB-967775-A (GB)
Title: Optical objectives
IPC: G02B15/14
Filed: 1962-11-21
Abstract: 967, 775. Varifocal objectives. M. C. SCHNEIDER, and H. J. SCHNEIDER, [trading as JOS. SCHNEIDER & CO.]. Nov. 21, 1962 [Jan. 20, 1962], No. 44005/62. Heading G2J. A varifocal objective comprises eight components of which the second and third component, which are both diverging, are movable, the sum of the variable air gaps is less than the least focal length of the objective as a whole; the focal length of the first component is less than 2 times the focal length of the rear four components taken as a group, with the individual focal lengths of the second. These and fourth components are each less than that of the rear four components taken as a group. The second component has a refractive index less than 1. 60 and the front face of the third component is concave to the front and has a radius more than 0. 65 times the focal length of the third component. Optical data are given for the objective shown and for another objective in which the second component is a cemented doublet.
Patent GB-874869-A (GB)
Title: New bis (hydroxynaphthylmethyl)-alkylphenols and their use as antioxidants for fats
Inventor: TAWNEY P O
IPC: C07C37/16
Filed: 1959-12-30
Abstract: The invention comprises 2:6-Bis-(21-hydroxy -11 - naphthylmethyl) -4- alkylphenols in which the alkyl group contains not more than 10 carbon atoms.  They are used as antioxidants in fats (see Groups I and III).  2 : 6-Bis(21-hydroxy -11- naphthylmethyl) -4-tert.-butylphenyl is prepared by refluxing 2 : 6-dimethyl-4-tert.-butylphenol, beta-naphthol and p-toluenesulphonic acid in benzene.  The 4-methyl compound is similarly prepared.ALSO:Fats are protected against oxidation by incorporating therein a 2:6-bis(21hydroxy-11-naphthylmethyl)-4-alkylphenol, in which the alkyl group contains not more than 10 carbon atoms (see Group IV(b)).  Specified compounds are 2:6-bis(21-hydroxy-11-naphthylmethyl) -4-methyl-or-tert.-butyl-phenols.  Fats specified include lard, tallow and castor, corn, cottonseed, herring, linseed, menhaden, neatsfoot, olive, oiticica, palm, peanut, perilla, rapeseed, safflower, sardine, sesame, soybean, sperm, tall, tung and whale oils which may be partially hydrogenated.ALSO:Fats, such as butter fat, are protected against oxidation by incorporating therein a 2 : 6 -bis (21 -hydroxy -11 -naphthylmethyl)-4-alkylphenol, in which the alkyl group contains not more than 10 carbon atoms (see Group IV(b)). Specified compounds are 2 : 6 -bis (21 -hydroxy-11- napthhylmethyl)-4-methyl-or-tert.-butyl-phenols.
Patent GB-1059138-A (GB)
Title: An electric switch including a magnetic blowout device
IPC: H01H9/44
Filed: 1963-11-11
Abstract: 1,059,138. Arc extinguishing in switches. SIEMENS-SCHUCKERTWERKE A.G. Nov. 11, 1963 [Nov. 10, 1962],No. 44513/63. Heading H2B. An arc extinguishing device comprises coil 3 surrounding part of the initial arc path and a cooling chamber 6 located at one end of the coil, the coil being energized at interruption. by a pulse of current whose magnitude is independent of the arc current. As shown, coils 3 with cores 4 alternate with cooling chambers 6. The cores produce an essentially radial field in the cooling chambers; this effect may be increased by connecting the coils alternately oppositely. Upon interruption a pulse of current is applied to the coils 3 by discharging a high voltage capacitor 7 through them, the capacitor having previously been charged by the transformer-rectifier arrangement shown. In a modification (Figs. 2, 3. not shown), the coil (14) is conical with its axis perpendicular to the initial arc path and a single cooling chamber is aligned with the axis. The contact chamber may be evacuated.
Patent GB-1245925-A (GB)
Title: Improvements in or relating to the fitting of rings round cylindrical objects
Inventor: ASHBRIDGE-THOMLINSON MICHAEL F
IPC: B26D7/26
Filed: 1967-09-29
Abstract: 1,245,925. Slitting webs. MASSON SCOTT THRISSELL ENG. Ltd., WALMSLEYS (WIGAN) Ltd., and M. F. ASHBRIDGE-THOMLINSON. 25 Sept., 1968 [29 Sept., 1967], No. 44546/67. Heading B4B. [Also in Division F2] A cutter roll for slitting paper webs comprises a knife block 12 mounted on a cylinder 1 which can be filled with liquid, F, such as light hydraulic oil, and an adjustable screw-operated plunger 10, 11 for applying pressure to the liquid so as to cause it to expand the cylinder wall into contact with the knife block. The adjustable screw may be replaced by an hydraulic or pneumatic cylinder device.
Patent GB-1101879-A (GB)
Title: Improvements in or relating to graft polymers
IPC: C08F8/30
Filed: 1965-10-22
Abstract: Substantially non-crosslinked graft copolymers of a lactam having at least 6 atoms in the ring and a copolymer of an unsaturated carboxylic acid and a monovinyl aromatic compound wherein the molar ratio of the units of aromatic compound to the units of the acid in the copolymer are in the range of from 15:1 to 100:1, and the graft polymer contains from 0.15 to 0.6 moles of aromatic compound units per mole of total monomeric units in the graft polymer are made by feeding at a controlled rate the appropriate amounts of monovinyl aromatic compound and unsaturated carboxylic acid to a polymerization zone containing the lactam, under such conditions that copolymerization of the aromatic and acid compounds take place without significant lactam polymerization and then causing the lactam to polymerize and graft on to the copolymer by changing the polymerization conditions.  The lactam may be caprolactam, 2-oxo-pentamethyleneimine, 2 - oxo - heptamethyleneine, 2 - oxo - octamethyleneimine, or 2 - oxo - decamethyleneimine. A list of monovinyl aromatic compounds is given of which styrene is preferred. The unsaturated acid may be acrylic, methacrylic, or p-vinylbenzoic acid. The copolymerization reaction is preferably carried out in aqueous media in the presence of a peroxy or azo-type initiator, and subsequently a catalyst for the lactam is added, the temperature raised from 200 DEG  to 300 DEG  C., and the lactam graft polymerized.  The second stage catalyst may be aminocaproic acid, or hexamethylene diammonium adipate.  The copolymerization of the monovinyl compound and acid may be effected by adding these compounds portionwise to the molten lactam, or as a premixed stream.
Patent GB-1075793-A (GB)
Title: Improvements in multi-storey car parks
IPC: E04H6/26
Filed: 1963-11-15
Abstract: 1,075,793. Mechanical garages. R. G. EDKINS. Nov. 12, 1964 [Nov. 15, 1963], No. 45163/63. Heading B8E. A multi-storey car-park comprises on each storey two rows of parking cells B, Fig. 1, separated by a central corridor C, Fig. 2 (not shown), the latter sloping down from the shaft A of an in-lift M to the shaft D of an out-lift F so that wheeled pallets on which the cars are carried will run down the corridor C under the control of a preceding brake trolley between the lifts M, F and the cells B, means being provided on the trolley for moving pallets to be parked into the cells B the floors of which are tiltable so that the pallets will run theredown into the cells and which when the cars are to be retrieved are tiltable in the opposite direction so that the pallets will run from the cells into the corridor C. The structure of the car park is portable and dismountable and has one or more entrances E and an exit G at ground level; the ground floor slopes towards the lift M. In operation a car is driven on to a pallet 1, Fig. 4 (not shown), held in an entrance E by a pivoted arrester arm 2 which when disengaged allows the pallet to run out of the entrance into the ground-floor corridor and so into the lift M. The pallet 1 consists of a frame mounted on castors 6, Figs. 7, 8, 9 (not shown), and having lateral guide wheels 7. The floor of the lift M is tiltable to facilitate movement of the pallet into and out of the lift, Fig. 4 (not shown). The pallet runs from the lift in a direction transverse to the selected corridor C which is provided with lateral shock absorbers 12 carrying longitudinal guides 11. The brake trolley comprises a frame mounted on non-castoring wheels and carrying a winch 15 provided with a brake system, and a wire extends from the winch to an anchorage on the car-park structure near the lift M, the structure carrying electrical conductors which co-operate with contacts on the frame. A single brake trolley may be provided which is moved to the different floors in a lift S; the wire is anchored at the top of the lift M. The tiltable floor of each cell B has a lateral slope equal to that of the corridor C and has guides for the wheels 6 and 7 of the pallets 1. The floor is hinged at 25, Fig. 4 (not shown), and is moved by a motor-driven screwed'rod 29 which engages a threaded sleeve 28 on the floor. When the floor is horizontal entry to and exit from the cell is barred by a spring-loaded guide 11, Fig. 6 (not shown), which is mechanically moved to a depressed position 11a when the floor is tilted. The means on the brake trolley for moving the cars into the cells comprises a continuous belt 39, Fig. 5 (not shown). Transverse guides 42, Figs. 10, 11 (not shown), are provided in the corridor C at each cell B for correctly positioning a pallet 1 when the latter leaves the cell, the guides 42 having gaps therein for passage of the supporting wheels of the brake trolley and the pallet.
Patent GB-1535204-A (GB)
Title: Stop-start units for rail vehicles
IPC: B61K7/22
Filed: 1975-11-01
Abstract: 1535204 Axle stop devices KINGSWINFORD ENG CO Ltd 13 Jan 1977 [1 Nov 1975] 45610/75 Heading B7L A section of rail track 10 carrying an axle stop 28 is pivotally mounted at 18, the stop and track being linked so that the stop is lowered as track end A is raised and the linkage is adjustable to vary the extent of lifting necessary for stop retraction. The stop 28 is mounted for vertical movement in a horizontally slidable spring-loaded block 20. Links 30, 34, 38 cause lifting and lowering of the stop as the tract tilts and the position of link 38, between link 34 and track carrier 12, is adjustable to vary the degree of tilt necessary for retraction. Variation, in the degree of tilt allows for different accelera. tion force when vehicles are released.
Patent GB-1060257-A (GB)
Title: Improvements in and relating to the anodic treatment of metallic films
IPC: H01L49/02
Filed: 1964-11-09
Abstract: <PICT:1060257/C6-C7/1> A process for anodically oxidizing a selected area of a metallic film other than Al, e.g. a film of Ta, W or Ti, comprises masking the area not to be oxidized with a film of Al, and anodizing the resultant surface in an electrolyte, e.g. either of 1 part by weight oxalic acid, 2 parts water, and 3 parts ethylene glycol or of 1 part by weight propane diol and 1 part of a saturated solution of oxalic acid in water.  For the anodizing, a Pt sheet electrode may be used with an applied potential between it and the surface to be anodized of 10 volts which is gradually increased to 150 volts and then held at this value until the current becomes stable.  The process may be used in making electrical capacitors and thin film resistance-capacitance circuits fabricated on a single substrate.  These may be made by cathodically sputtering a film 12, Fig. 1A, of W, Ti or Ta on a glass substrate 10 (the glass may first be coated with a layer of Au, not shown), vacuum depositing a layer 22 of Al and then applying a layer 24 of a photographically sensitive lacquer, removing the lacquer from at least one predetermined area of the Al, removing the Al from the predetermined area, anodically oxidizing the film of W, Ti or Ta in the predetermined area, removing the remaining portion of the lacquer film, removing the remaining portion of the Al film, and applying a contact to the anodically oxidized portion 14, Fig. 1G, of the film 12 of W, Ti or Ta by evaporating thereon a layer 16 of Cr and a layer 18 of Au.  In a modified process, the use of a photo-resist lacquer layer is omitted. After selective removal of the Al and during anodizing, both the remaining Al and the exposed part of the layer of W, Ti or Ta become coated with their oxides. The Al2O3 and remaining Al are subsequently etched away.
Patent GB-1481549-A (GB)
Title: Antimicrobial dihalonitromethyl heterocyclic compounds
IPC: C07D277/60
Filed: 1974-10-24
Abstract: 1481549 Dihalonitromethyl heterocyclic compounds PURDUE RESEARCH FOUNDATION 24 Oct 1974 [25 Oct 1973] 46001/74 Heading C2C Novel dihalonitromethyl heterocyclic compounds of general formula wherein X is Cl or Br and R is in which E is O or S; Ar combined with the 2 C atoms to which it is attached forms a phenyl or naphthyl ring system; each R<SP>1</SP> group is C 1-3  alkyl or phenyl; n = 0-2 when R<SP>1</SP> is C 1-3  alkyl; n=0 or 1 when R<SP>1</SP>=phenyl; R<SP>2</SP> is H, C 1-3  alkyl or phenyl; R<SP>3</SP> is H or C 1-3  alkyl and R<SP>4</SP> is C 1-3  alkyl provided that n is not zero when Ar combined with the 2 C atoms to which it is attached forms phenyl, are prepared by reacting a compound of general formula with a hydrogenating agent; M is an alkali metal. Amongst numerous examples the compounds 3 - dibromonitromethyl - 5 - phenylisoxazole and 2-dichloronitromethyl-2-oxazoline are prepared. Potassium 3 - methyl - 5 - phenylisoxarole nitronate is obtained by treating 3-methyl-5- phenylisoxazole with metallic K at- 33 C. with ferric nitrate catalyst. Biocidal compositions comprise a compound of Formula I above in association with a suitable carrier.
Patent GB-1006661-A (GB)
Title: Apparatus for transporting webs
IPC: F26B13/14
Filed: 1961-12-22
Abstract: 1,006,661. Films. SHIN-MITSUBISHI JUKOGYO KABUSHIKI KAISHA. Dec. 22, 1961 [Dec. 27, 1960], No. 46009/61. Heading B5B. [Also in Divisions B6 and F4] Web, regenerated cellulose film, fabric and yarn feeding apparatus comprises a plurality of rollers or drums, characterized in that two rollers are connected to a driving source through infinitely variable speed gear means respectively and the remaining rollers between the said two rollers are operatively connected one by one through differential gear means to the said two rollers. A web W is fed through treating apparatus in a manner as shown in Fig. 2. During treatment the web may shrink or expand and it is the object of the invention to prevent excessive tensioning and/or slackening. The two rollers R D  and Rc of the group b, Figs. 2 and 3, are driven at differing speeds through respective infinitely variable speed gear means V, Fig. 1 (not shown), by a common driving source. Intermediate rollers R1<SP>1</SP>, R4 are driven at speeds differing to each other through gear trains G and differential gears D so that the web W is fed by the whole plurality of rollers without tensioning and/or slackening. In a second embodiment, Figs. 5 and 6 (not shown, the web is fed by a plurality of driven rollers in a zig-zag fashion as opposed to the looping fashion of Fig. 2 in which the bottom rollers were idler rollers. Two rollers R B  and R c  are driven in the same manner as above, and the intermediate rollers are driven by gear trains G and differential gears D in a similar manner except that the intermediate shafts r 1  and r 2  are dispensed with and the differential gear d is mounted on the shaft of the associated roller.
Patent GB-1451239-A (GB)
Title: Film magazine
IPC: G03B17/30
Filed: 1973-10-02
Abstract: 1451239 Film magazines FUJI SHASHIN KOKI KK 2 Oct 1973 46075/73 Heading G2A A film magazine has a spool in the take-up chamber, which spool is spring-loaded so as to take up the film, but is locked against such movement until it is mounted in a camera, upon which the locking means is rendered inoperable. As shown, the take-up spool 7 is rotatably supported in the take-up chamber 3 of the magazine of Fig. 1 (not shown). A spring 6 has one end anchored in the inner wall of chamber 3 and the other end anchored in spool 7. Spring 6 is tensioned during manufacture of the magazine, so as to urge spool 7 in the take-up direction. Such movement, however, is prevented by locking engagement between projections 8, 9 on the under surface of spool 7 and projections 11, 12 on the inner surface of the magazine. Projections 11, 12 are carried by a flap 13 urged into a closed position by a spring hinge 14. When the magazine is positioned in a camera, and the back closed, this causes a rod 16 to be pressed downwards from the Fig. 2 position to the Fig. 3 position. This pushes open the flap 13, so that the locking engagement between the two sets of projections is released, and the film may be wound on to take-up spool 7.
Patent GB-1316245-A (GB)
Title: Centrifugal devices
IPC: G05D13/08
Filed: 1971-10-05
Abstract: 1316245 Centrifugal shaft coupling ROBERT BOSCH GmbH 5 Oct 1971 [6 Oct 1970] 46210/71 Heading F2U A centrifugal coupling for varying the relative angular positions of two shafts comprises a flyweight 18 pivoted (e.g. at 15) to one shaft to move radially outwardly under the effect of centrifugal force against the action of a return spring 45, the flyweight 18 having a projecting pin 25 engaging a cam surface 27 fixed to the other shaft, the pin 25 engaging a selected one, 8, of a series of cut-outs 30 (e.g. of different length) in a disc 31 to limit the relative angular displacement. The cut-outs 30 may be straight radial slots, as shown, slots parallel to the cam surface 27, Fig. 5 (not shown), or internal recesses in a ring fixed to parts 28 formed with the cam surface 27, Fig. 4 (not shown).
Patent GB-991915-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: BELL ALAN
IPC: F28D7/00
Filed: 1961-12-11
Abstract: 991,915. Tubular heat exchangers. FOSTER WHEELER Ltd. Dec. 11, 1962 [Dec. 11, 1961; Nov. 23, 1962], Nos. 46552/62 and 44407/62. Divided out of 991,911. Heading F4S. A shell and tube type heat-exchanger has a number of clusters 16 of tubes 24 which are attached at their ends to headers 26 each cluster being provided with an inlet and an outlet tube 18 leading respectively from and to common inlet and outlet tube headers 20. The tubes 24 are threaded through spacer plates 30 provided with elongated holes (Fig. 5, not shown) so that the tubes may be sprung outwardly and held in this position by means of taper keys (Fig. 7, not shown) inserted into the holes in order to ensure uniform distribution of all the tubes over the cross-section of the shell of the heat-exchanger for the greater part of their length. The preferred outline for the cluster of tubes where they are sprung is hexagonal both where the headers are circular and hexagonal since this shape lends itself to the uniform distribution of the tubes. In order to prevent restriction to the flow of medium outside the tubes which would occur with juxtaposed hexagonal spacer plates the tube clusters may be staggered slightly as shown.
Patent GB-1224958-A (GB)
Title: Production of ribonucleic acid
Inventor: BIRNBAUM JEROME
IPC: C12P19/34
Filed: 1969-09-22
Abstract: 1,224,958. Ribonucleic acid. MERCK & CO. Inc. 22 Sept., 1969, No. 46577/69. Heading C3H. A process for obtaining double-stranded RNA comprises adding Escherichia coli to a nutrient culture medium and permitting growth to occur, adding Mu-9 mutant to infect the growing E. coli, then adding an antibiotic to inhibit the growth of the E. coli and thereby obtain an increased productivity of DS-RNA relative to the E. coli cells. Suitable media include tryptone and corn-steep liquor. The antibiotic may be streptomycin, oxytetracycline or chloramphenicol added in an amount of 5 to 200 Ág per ml. of culture at 45 to 120 minutes after infection.
Patent GB-1248613-A (GB)
Title: Method of and apparatus for use in securing a metallic member to a flat metal sheet
Inventor: BECK EDWARD GEORGE
IPC: B23K20/02
Filed: 1968-10-02
Abstract: 1,248,613. Making heat exchangers; jointing. STOLLE CORP. 2 Oct., 1968 [5 Oct., 1967], No. 46721/68. Addition to 1,175,086. Headings B3A and B3V. To secure an elongated metal member to a flat metal sheet the member is laid on the sheet in contact with a strip of thermoplastic synthetic resin adhesive; the sheet is clamped over the area not occupied by the member and the assembly is heated to melt the strip. In securing a sinuous copper tube 15 to a flat aluminium sheet 16 to produce a radiant heating-cooling panel three stations A, B, and C are employed. Stations A and C are assembly and cooling stations and B is a heating station. At each station a support block 10, 11 or 12 of annealed steel or cast aluminium is provided and over these blocks a perforated aluminium belt 13 is arranged to pass. The aluminium sheet 16 is placed on the belt with strips of thermoplastic synthetic resin adhesive on the sheet. The resin may be screen printed on the sheet. The sheet is located by fingers 30 and a jig 14, comprising a cast aluminium plate 17 to which is secured a block 19 of asbestos fibre and binder, the underside of the block having a groove 20 with a strip 21 of silicone rubber or stainless steel springs, holds the tubing in the groove by pressure pins engaging the sides of the tubing and fingers engaging under the ends of the tubing emerging from the groove. The jig is releasably attached by a pin 81 to a shank 34 vertically slidable in a guide 35 on the frame 35a and the jig is lowered on to the sheet 16 and released from the shank to press the tubing on to the sheet and the sheet on to the belt. The block 10 at station B is heated to 510‹ F. to soften the bonding material. After a short time the assembly is moved by the belt to station A or C where the block is heated to 300‹ F. to permit cooling.
Patent GB-1040148-A (GB)
Title: Improvements in driving mirrors for motor vehicles
IPC: B60R1/08
Filed: 1963-11-27
Abstract: 1,040,148. Driving mirrors for motor vehicles. H. LEWIS and E. LEWIS. Feb. 23, 1965 [Nov. 27, 1963], No. 46758/63. Heading B7J. A driving mirror for motor vehicles comprises a moulded plastics casing A having a top a curved downwardly at the ends and base a<SP>1</SP> spaced apart by integral walls B extending perpendicular to, and further walls extending obliquely to, the longitudinal axes of the top and bottom, a rectangular anti-dazzle mirror D being secured by adhesive to the front of each further wall to give a substantially continuous view rearwardly when mounted above the windscreen of a vehicle and viewed from the driver's seat, each end mirror being curved at its upper edge. The casing A is secured by brackets C<SP>1</SP>, to the vehicle body above the windscreen (not shown) with the right-hand end of the easing in line with the centre of the steering column. A bracket c<SP>2</SP> having a rubber pad c<SP>3</SP> is mounted on the casing, the pad engaging the vehicle body to act as a vibration damper. The casing A is closed at the rear by a cover C, Figs. 2, 3 (not shown), has a lip or bead a<SP>3</SP>. Dimensions are given.
Patent GB-1514969-A (GB)
Title: Apparatus for guiding a flowable material from a position to a lower located position
IPC: E02D15/06
Filed: 1975-11-12
Abstract: 1514969 Shoots HOLLANDSCHE BETON GROEP NV 12 Nov 1975 [13 Nov 1974] 46775/75 Heading B8S Apparatus for guiding a flowable material such as a concrete mixture 11 from a level above water level 2 to a level below such, comprises a tube 1 in which a bag 4 is located, the latter being connected to a part of the tube wall and to a cover plate 6 so that a channel for the passage of the mixture 11 exists between the bag 4 and tube 1, the bag 4 containing water whose level 8 is above that of the level 2 so that when no material is being guided the bag 4 fills the entire cross section of the tube 1, as shown in Fig. 2 (not shown). In a second embodiment, Figs. 3, 4 (not shown), a rigid gutter-shaped member (12) is joined at its edges to the edges of a rigid or flexible cap (14), a flexible sheet (16) which is connected between the edges of the member (12) and cap (14) forming with the cap (14) a space (17) for holding water while the space between the sheet (16) and member (12) provides a passage through which a mixture (18) can pass.