baber/WOPTO huggingface dataset:
Patent GB-1470974-A (GB)
Title: Removable lids for containers
IPC: B65F1/16
Filed: 1974-08-16
Abstract: 1470974 Lids JUDGE INTERNATIONAL Ltd 16 Aug 1974 [5 July 1973] 32037/73 Heading B8P [Also in Division E2] A removable lid 11 for a moulded plastics container 12 is hinged to a peripheral rim 13 by an integrally formed hinge element 15 comprising a first part 21 extending downwardly from the edge of a depressed portion 22 to engage the inner surface of container 12, and a second part 23 extending downwardly on either side of part 21 to engage the outer surface of rim 13. The lid has a domed shape to give an over-centre stable position when the lid is opened and part 23 rests against the outside of the container. A cut-out 24 between the first and second hinge element parts assists opening of the lid to the over-centre position.
Patent GB-231229-A (GB)
Title: Improvements in or relating to the gyroscopic steering apparatus of automobile torpedoes
IPC: G01C19/38
Filed: 1923-12-21
Abstract: 231,229. Whitehead Torpedo Co., Ltd., and Jones, A. E. Dec. 21, 1933. Toperdoes, locomotive.-Relates to steering gyroscopes which are kept spinning by jets of air directed aginst buckets a on the rotor A by nozzles b<1> carried axially by the trunnions b of the inner or horizontal gimbal ring B, and consists in supplying air to these nozzles by nozzles c<1> carried by the outer or vertical gimbal ring C and arranged around or close to, but not connected with, the nozzles b<1>. The nozzles c<1> are supplied with air through passages c<2> - - c'. In connection with this arrangement, the rotor is started in a known way by a large flared nozzle E carried by the outer gimbal ring C and initially opposite a nozzle d' but free to move relatively thereto with the gimbal ring after the rotor has been started and the gimbal rings unlocked.
Patent GB-262950-A (GB)
Title: Improvements in or relating to cocoanut splitters
IPC: A23N5/03
Filed: 1925-12-21
Abstract: 262,950. Carter, R. J. Dec. 21, 1925. Addition to 241,027. Cracking nuts.-The javelin-shaped knife or splitter of the parent Specification is provided with any number of straight or curved blades with saw-tooth or knife-like edges. The splitter is applicable for treating all nuts, kernels, seed pods, and seeds.
Patent GB-534921-A (GB)
Title: Improvements relating to hospital and like institution bedsteads
IPC: A61G13/00
Filed: 1939-12-18
Abstract: 534,921. Surgical bedsteads. PHILLIPS, Ltd., A., and ROGERS, A. E. Dec. 18, 1939, No. 32401. [Class 52 (ii)] In a hospital bed wherein the mattress and frame structure are each divided transversely into two sections, the mattress section 10 at the foot end is carried by pivoted struts 11, 11a and may be lowered on to its frame structure 6b by first detaching the hooked end He from a cross bar 12. The underframe, which is provided at one end with wheels 7, may then be pushed beneath the head-end section 8a to the position shown by broken lines, the forward end of the frame 6b being provided with rollers 16 running along channel irons 14. In the collapsed position, space is economized and obstruction in attending to the patient is obviated. The abutting ends 9 of the mattress-supporting secions 8a, 10 are joined by a spigot and socket connection. The frame 6b extends beyond the abutting ends 9 of the mattress sections, and the lower ends of the struts 11 are pivoted to the extended ends so that overlapping of the foot rail 6 by the superposed mattress, when lowered, is reduced to a minimum.
Patent GB-969756-A (GB)
Title: Improvements in or relating to insole construction for footwear
IPC: A43B13/41
Filed: 1960-09-21
Abstract: 969,756. Shoe insoles; shank stiffeners. L. A. LOAKES, and F. D. ABBOTT. Dec. 21, 1961 [Sept. 21, 1960], No. 32463/60. Heading A3B. A composite shoe insole construction comprises an insole proper having one face recessed at 12 to accommodate a shank stiffener 13 and a groove 15 formed at the bottom of the recess to receive a strengthening rib 14. The waist and heel portion 10 of the insole may be of fibre board, or of two thicknesses of material, one receiving the rib 14, the other embracing the stiffener. Alternatively the part 10 may be moulded in one piece from a plastic. The stiffener may be held in place by adhesive and may be covered by a sheet 16 of canvas. The forepart of the insole may comprise a highly flexible rearward portion 17, attached by a scarf joint to a less flexible toe-end portion 18.
Patent GB-968039-A (GB)
Title: Improvements in or relating to nuclear reactor fuel elements
Inventor: SUMNER GERALD
IPC: G21C3/28
Filed: 1962-08-27
Abstract: 968, 039. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 19, 1963 [Aug.27, 1962], No. 32758/62. Heading G6C. A nuclear reactor fuel element comprises a thin-walled metallic sheath containing discrete bodies of nuclear fuel material and is internally pressurised to such a degree as to prevent collapse of the sheath on to the enclosed fuel bodies due to creep under external pressure at reactor operating temperatures. In the example described, a beryllium sheath of 0. 300 to 0. 302 inch internal bore and 0. 035 to 0. 044 inch wall thickness contains a column of right cylindrical sintered U0 2  pellets of 0. 298 to 0. 299 inch dia., thereby leaving a gap of 0. 0005 to 0. 002 inch between the pellets and the sheath. The ends of the sheath are closed by beryllium end caps welded in position in a 60: 40 parts by volume argon-helium mixture of pure helium at a pressure of 50 lbs./sq. inch at room temperature. Filling to this internal pressure means that when the fuel element is used in a reactor at 700‹C. under an external pressure of C0 2  coolant at 270 lbs./sq. inch the net external pressure is reduced to approximately 1501bs./sq.inch and no collapse of the sheath occurs.
Patent GB-863146-A (GB)
Title: Improvements in or relating to the control of drafting systems in textile spinning machines
IPC: D01H5/42
Filed: 1958-10-14
Abstract: 863,146. Electric correspondence control systems. ZELLWEGER Ltd. Oct. 14, 1958 [Jan. 9, 1958], No. 32771/58. Class 40 (1). [Also in Groups XXXVI and XL (b)] Textile material 9 (Fig. 1), is fed sequentially through a measuring device 1, giving a voltage U 1  indicative of the distributed weight per unit length of the material, a first pair of drafting rollers 7, 8 driven at a constant speed n 2 , and a second pair of drafting rollers 5, 6 driven at a variable speed n 3  determined partly by the signal U 1 , so that the weight per unit length of the material after leaving the rollers is constant. The speed n 2  is reduced by the average drafting factor by gears 10, 11 to speed n 1 , which is compared with the constant speed n 2  in a differential gear 12, and produces a signal U 3  from potentiometer 16 indicative of the speed difference, which at 2 is algebraically added to signal U 1  from the measuring device 1, fed through a delay circuit 30, and a rate signal U 5  from tachogenerator 31, to control the drive motor 4 for rollers 5, 6. Long term variations cause the slider 17 to move to one end of potentiometer 16 to close alarm circuits at 20 or 21. In one modification (Fig. 2, not shown), potentiometer 16 acts as one branch of a bridge with a ratio determined by the position of slider 17, the measuring device 1 being one of the other arms, whereby the bridge unbalance voltage is a combination of signals U 1  and U 3 . In a further modification potentiometer 16 is replaced by a variable capacitor. The measuring device 1 is preferably in the form of a test capacitor with the material 9 as its dielectric. In one embodiment (Fig. 4, not shown) the quality of the material 9 is determined by the light (or other radiation) reacting a first photo-cell 29 from a lamp 28 through the material, which is balanced by corresponding movement of a vane 25 between the lamp 28 and a second photo-cell 24 to produce the required control signals. Specification 816,375 is referred to.
Patent GB-305324-A (GB)
Title: Improvements in, and connected with, sight testing instruments
IPC: A61B3/024
Filed: 1927-12-05
Abstract: 305,324. Whitehead, F. P., (trading as Whitehead & Co., F ). Dec. 5, 1927. Sight-testing apparatus. - A scot-o-meter or perimeter for sight-testing comprises two toothed racks slidable within a pivoted bar and connected by gearing so that their rates of movement along the bar bear a constant ratio to aach other, one rack carrying a coloured object and the other a plotting implement. A tube A1 slidably and rotatably mounted in a support A carries a plate A3 to which is attached a plate B carrying supports B1 for the frame B2 to which is secured a chart &c. C. Pivoted to the plate A3 is the bar D1 comprising a hollow tube formed with a slot in which is slidably mounted the rack D3. Attached to the bar D1 is another bar D4 in which is slidably mounted a rack D5, and the two racks are connected together by gearing E1 - - E4 so that their rates of movement along the bar are in a constant ratio which is equal to the ratio of their distances from the centre of the plate A3, The rack D3 is operated by a handle F, Fig. 2. and is provided at its outer end with a coloured object O; a marking point D6 carried by the rack D5 then makes the desired record on the chart.
Patent GB-1012530-A (GB)
IPC: B29C59/02
Filed: 1963-08-19
Abstract: 1,012,530. Embossing surfaces. E. I. DU PONT DE NEMOURS. Aug. 19, 1963 [Aug. 20, 1962], No. 32787/63. Heading B6C. [Also in Division B3] A metal article, suitable for embossing thermoplastic surfaces such as a web for use in a wrapping and packaging machine, comprises a metal base having a Rockwell Hardness of between B85 and C30 supporting a chromium layer of no more than 0À002 inch in thickness, said article having 2 x 10<SP>4</SP> to 12 x 10<SP>6</SP> randomly spaced hemi-spherical indentations per square inch in its surface separated by highly polished areas, and said indentations having diameters within the range 50-1500 microinches. The article is used in the form of a cooled roller in the coating of a cellulose film with polythene resin, said roller producing a coated film having high gloss, good transparency, excellent slip and good anti-blocking properties. In an example a steel roller of the required hardness is polished and plated with a 0.00075 inch thick layer of chromium. This layer is polished to a 1-1À5 microinch finish and the roller rotated while being blasted with a stream of water containing 1 lb./gal. of glass beads 200-600 microinches in diameter at a pressure of 50 p.s.i.
Patent GB-1199751-A (GB)
Title: Process for the Manufacture of Polyesters Containing Ether Groups
IPC: C08G63/00
Filed: 1967-07-17
Abstract: 1,199,751. Polyesters from cyclic acetals and ketenes. WACKER-CHEMIE G.m.b.H. 17 July, 1967 [22 July, 1966], No. 32804/67. Heading C2C. [Also in Division C3] Polyesters containing repeat units in which each R represents a hydrogen or halogen atom, or a saturated or unsaturated aliphatic or an aromatic or heterocyclic radical, which may be substituted, R<SP>1</SP> represents a hydrogen atom or a saturated or unsaturated aliphatic or an aromatic or heterocyclic radical, which may be substituted, R<SP>11</SP> represents a hydrogen atom or alkyl group, and n is 2, 3, 4 or 5, are prepared by reacting a cyclic acetal with a ketene R<SP>11</SP> 2  = C = O, in presence of an acid catalyst at - 80 to 160 C. Suitable catalysts include mineral acids, e.g. H 2 SO 4 , H 3 PO 4 , HPO 2 F 2  and HPF 6 , and Friedel-Crafts catalysts, e.g. BF 3 .Et 2 O, AlCl 3 , ZnCl 2 , FeCl 3 , in amount 0À05-5 wt. per cent of the acetal. A solvent may be used, e.g. an ether, CH 2 Cl 2 , CHCl = CCl 2 , DMF, toluene, cyclohexane and benzene. The acetal may be partly or entirely a polycyclic acetal having one acetal group per ring. In examples, ketene is reacted with 2-methyl-1: 3- dioxolane in presence of BF 3 (Et 2 O) 2 , 4-methyl- 1: 3-dioxane in presence of BF 3 (Et 2 O) 2 , 5: 5- dimethyl-1: 3-dioxane in presence of BF 3 (Et 2 O) 2 , 1: 3-dioxepane in presence of HPF 6  in ether, 2- phenyl-5; 5-dimethyl-1: 3-dioxane in presence of HPF 6  in benzene, 4-methyl-1: 3-dioxane in presence of BF 3 (Et 2 O) 2  in CH 2 Cl 2 , and 1: 3- dioxepane in presence of HPF 6  in CH 2 Cl 2 . The products have molecular weights of 465-1470.
Patent GB-670155-A (GB)
Title: Improvements in or relating to the separation of chlorine and sulphur dioxide
IPC: C01B7/07
Filed: 1949-12-22
Abstract: Chlorine is separated from a mixture thereof with sulphur dioxide such as results from the decomposition of chlorosulphonic acid, by bringing the mixture into contact with liquid sulphur trioxide which absorbs the sulphur dioxide.  A countercurrent process is preferably employed wherein sulphur trioxide trickles down a packed tower to the bottom of which the mixture is passed.  The chlorine effluent at the top of the tower is freed from sulphur trioxide by washing with 98 per cent sulphuric acid whilst sulphur dioxide may be recovered by fractional distillation of the liquid sulphur trioxide from the bottom of the tower.
Patent GB-863105-A (GB)
Title: Re-inforced flexible plastic hose pipes and method of making same
IPC: B29C53/30
Filed: 1958-10-14
Abstract: 863,105. Flexible hoses. TITEFLEX Inc. Oct. 14, 1958 [Oct. 31, 1957], No. 32840/58. Class 99(2). A flexible, reinforced plastic hose is made by wrapping a helix of the plastic and reinforcing material around a malleable and collapsible tube that provides a temporary inner layer of the hose, corrugating the inner layer, plastic and reinforcement simultaneously whilst holding them together during the corrugating step, heat treating the plastic while preventing collapse of the hose by means of the support afforded by the inner layer, and, after the heat treatment, crushing the inner layer and withdrawing that layer from the hose. As shown a strip 12 of aluminium or copper foil, one or more strips 15 of polytetrafluoroethylene and a strip 18 of woven fibre-glass fabric impregnated and covered with polytetrafluoroethylene are wound helically on to a rotatable or stationary, hollow mandrel 11, the strip 12 having the inner side thereof coated with polytetrafluoroethylene to facilitate stripping of the hose from the mandrel, and the convolutions of the tensioned strips overlapping. The hose is corrugated by a rotatable grooving worm 25 and nut 26 and the hose 28 passes between a fixed, inner compressing element, which retards axial and rotational movement of the hose, and a rotatable outer thread-forming element 32, both these elements rotating at a speed so as to cause the corrugations of the hose to be pressed close together and shaped by the element 32 as shown in Fig. 2. The hose is subjected to heat treatment, e.g. sintering by means of induction coils 35, 36, and a metal braid 40 is applied to the hose. To remove the inner layer of foil, the hose is passed between rollers to crush the foil so that the latter can be removed.
Patent GB-1383207-A (GB)
Title: Olefin polymerisation catalysts comprising such compounds including  trivalent phosphorus compounds
IPC: C08F4/60
Filed: 1971-07-13
Abstract: 1383207 Trivalent organophosphorus compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 30 June 1972 [13 July 1971] 32856/71 Heading C2P [Also in Division C3] Compounds of Formula I  where B is halogen, hydrocarbyl, -NR 2  or -OR, where R is hydrocarbyl, X is -O-, -S- or -NR-, A is a bivalent organic radical such that X and Y are separated by not more than 3 carbon atoms, Y is -OR, -SR, -NR 2 , -PR 2  or a heterocyclic ring system whereof the heteroatom is O, S, N or P and n is 1, 2 or 3, which compounds are used as components of olefine polymerization catalysts, are prepared by reacting a compound H(X-A-Y) or a salt thereof with a compound PB<SP>1</SP>B<SP>11</SP>B<SP>111</SP> where B<SP>1</SP>, B<SP>11</SP> and B<SP>111</SP> are halogen, hydrocarbyl, -NR 2  or -OR.
Patent GB-437226-A (GB)
Title: Improvements in the treatment of textile materials
IPC: D06M13/368
Filed: 1934-11-15
Abstract: 437,226. Fireproofing textiles; electric conductors. BRITISH CELANESE, Ltd., 22, Hanover Square, London. Nov. 15, 1934, No. 32889. Convention date, Nov. 15, 1933. [Class 140] [See also Group XXXVI] The inflammability of textile materials particularly artificial textile materials such as those made of cellulose acetate or other organic derivatives of cellulose, is reduced by coating or impregnating with an alkylolamine salt of an inorganic acid, such as a halide, phosphate or borate. Yarns so treated are suitable for knitting or for braiding or wrapping on electric conductors. The salts are applied in the form of solutions or dispersions in water or organic liquids, and the solution may contain an excess of alkylolamine or of the acid in order that it may not be strongly acid or alkaline ; and the solution may be applied to the yarn, or to the fabric or to braided or wrapped wire, or to both the yarn and to the braided covering. Specifications 388,426, 388,427, 388,769, and 416,028, [all in Group IV], are referred to.
Patent GB-997532-A (GB)
Title: Apparatus and method for applying unvulcanized rubber material for the carcass
IPC: B29D30/30
Filed: 1963-08-21
Abstract: 997,532. Applying material to tyres. FIRESTONE TIRE & RUBBER CO. Aug. 21, 1963 [Sept. 18, 1962], No. 33069/63. Heading B7C. A calender 40 (Fig. 2) produces a sheet of unvulcanized rubber from which a strip S is segregated by trimming means 44, the strip being applied by roll means 55 to a tyre carcase on a rotatable mandrel 30 and cut off by means 50 after the proper length has been applied. Fig. 1 shows a rotatable turret table 12, which carries a series of expandable mandrels 30, and is indexed by a cylinder 20 (Fig. 3, not shown) to bring each mandrel in turn opposite Stations 1 . . . 5. At Station 1 a carcase is loaded on to a mandrel 30 and at Stations 2 . . . 4 apparatus as in Fig. 2 delivers and applies sidewalls and tread layers to the carcase. The arrangement (Fig. 4, not shown) is applicable to manufacture or retreading of tyres. When a mandrel is lowered to contact roll 55 (Fig. 2) a gripper head 62 grips the strip by vacuum means and applies it to roll 55 for pressing on to the carcase. Spaced trimming knives 45 segregate a strip or strips (e.g. shoulder strips) of the right width and in the correct positions axially of the carcase. More than one turn of strip may be applied and the knives 45 may move to cut for example tapering strips for tread shoulders (Fig. 4, not shown). Roll knife 50 then cuts the strip(s), and the carcase is lifted by cylinder 35 and moved round to the next station. At Station 5 mandrels are collapsed and raw tyres removed for moulding. The different calendars may produce different grades of rubber appropriate to the different parts of the tyre. The rolls 41, 42 may be relatively adjustable.
Patent GB-1361933-A (GB)
Title: Tracked air-cushion vehicle
IPC: B60V3/04
Filed: 1972-07-14
Abstract: 1361933 Air cushion vehicles MASCHINENFABRIK AUGSBURG-NURNBERG AG 14 July 1972 [17 July 1971] 33123/72 Heading B7K An air cushion vehicle 4, in the preferred embodiment for operating over a track 1, 3, has provision for tapping and directing air from support, and when provided, guidance cushions for the purpose of propelling or braking the vehicle. An air supply duct 5 extends over the length of the vehicle to supply air to a support cushion space 7 and a guidance cushion space 11  the air from space 7 being discharged through a propulsion/braking device 9 comprising a set of vanes 8 which may be adjusted in unison by a mechanism 10 in order to divert the airflow backwards or forwards. Air from cushion space 11 is delivered to a device 19 similar to the device 9. The vehicle cushion pad wall backing cushion 11 comprises a pad 13 carried by a plunger 14 in a cylinder 16 supplied with pressure liquid through a conduit 15, movement of the pad being stabilized by springs 17. In an alternative embodiment the backing member for both support and guidance cushions is a perforated member supported by a bellows device and the air from both cushions is directed to device 9.
Patent GB-788527-A (GB)
Title: Improvements in or relating to apparatus for heat treatment of thermo-plastic or thermo-setting yarn
IPC: D02G1/02
Filed: 1954-11-26
Abstract: 788,527. Electric heating. KLINGER MANUFACTURING CO., Ltd., SCRAGG & SONS, Ltd., E., GILCHRIST, R. S., SCRAGG, E. P., and MATTINGLY, D. A. E. Nov. 22, 1955 [Nov. 26, 1954], No. 33501/55. Divided out of 788,526 [Group IX]. Class 39(3) [Also in Group IX] In electric heating apparatus for the treatment of thermoplastic or thermosetting yarn (see Group IX) a body formed by an oil-containing pipe 11 houses a pipe 22 (into which the heat rseponsive element 27 of a thermostat propects) connected to the outlet of a centrifugal pump casing 23, and an electric heating element 24; a compartment 21 housing the rotor 30 of the pump circulating the oil is connected with an expansion chamber 29 by a pipe 28 through which pass the rotor shaft 31 and a tube 33 housing electric leads 32 to the heater 24. The pipes 11 and 22 and the compartment 21 are fitted with a non-carbonizing oil of low vapour pressure a column of which extends through the pipe 28 and partly fills the chamber 29; the pump provides a closed circuit of oil through the pipes as shown by the arrows. In a modification the pipes 11 and 22 are coaxial and the element 24 is wound around the pipe 22. In a multiple assembly, the leads 32 and the elements 27 are connected to a common controller 34 through which each element 27 controls a switch (in circuit with its associated element 24) with which time-controlled means (not shown) may be associated for successively energizing the elements when they have been rendered operable by their respective thermostats. The apparatus comprises metal tongues 10 as described in Specification 788,526 [Group IX].
Patent GB-653269-A (GB)
Title: Improvements in thread-advancing reels
IPC: D01D10/04
Filed: 1947-12-22
Abstract: 653,269. Thread advancing reels. BRITISH CELANESE, Ltd. Dec. 22, 1947, No. 33815. Convention date, Dec. 27, 1946. [Class 120(ii)] A thread advancing reel comprises a series of bars divided into two interdigitating sets and arranged parallel to one another approximately in the form of a cylinder, each bar comprising an outer member carried by and sliding on an inner member, means whereby the whole series of bars is caused to rotate about a single axis and separate means for each set of bars, operated by the rotation of the bars, whereby the inner members of the bars are caused to reciprocate radially carrying with them the outer members and the outer members are caused also to reciprocate lengthwise, so that the position of each bar with respect to both radial and lengthwise reciprocation depends on its angular position. The bars 8 of both sets each comprise an outer member 21 carried by and slidable upon an inner member 22 attached by brackets 29, 31 and links 27, 28 to spiders 25, 26 fixed to the rotation shaft 11 carrying the reel. The inner members 22 are reciprocated radially against spring action 51 by an edge cam 49 through a follower 48 and bracket 46, the cam 49 being fixed to a bushing 12 attached to the supporting means of the reel structure by brackets 14 ; and the outer members 21 of the bars are reciprocated longitudinally by a face cam 38, fixed to the bushing 12. which operates against spring action 41 through followers 37 attached to extensions 36 on the outer bar members 21. Each bar may be provided with a contour strip 58 fastened to it, such strip being provided with grooves 59 and functioning to compensate for alteration in length of the yarn advancing along the reel.