baber/WOPTO huggingface dataset:
Patent GB-221507-A (GB)
Title: Improvements in or relating to frequency transformers
IPC: H03B19/03
Filed: 1924-09-04
Abstract: 221,507. Lorenz Akt.-Ges., C. Sept. 7, 1923, [Convention date]. Transformers.-The cores of frequency transformers are made of sheets of metal, e.g. nickel steel, not exceeding 0.02 millimetres in thickness. When the transformer is immersed in oil the sheets may be loosely placed together without employing solid insulating materials, the oil being driven between the sheets by capillary forces. Specification 194,007 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that alloys of iron with metalloids, e.g. silicon, may be used. This subject-matter does not appear in the Specification as 'accepted.
Patent GB-665788-A (GB)
Title: Improvements in hand-operated power-driven nibbling tools
IPC: B23D27/02
Filed: 1949-08-11
Abstract: 665,788. Cutting shaped holes in plates. SANDERS, A. V., and HAWKER SANDERS, Ltd. June 30, 1950 [Aug. 11, 1949], No. 20919/49. Class 83 (iv). A hand-operated power-driven nibbling tool is characterized in that the die with which the reciprocatory punch co-operates is of hardened steel detachably mounted in the beak of the foot, the body of the foot and the beak being made of toughened steel. The tool-head comprises a housing 1 containing a shaft 2 which is reciprocated by an eccentric 7 on a spindle 4 rotated by a flexible drive-shaft. The shaft 2 moves in a bush 9 which is retained in the housing 1 by the detachable foot 11 which is clamped to the housing by a sleeve 13. A pair of diametricallyopposite dogs 14 on the foot interlock with slots in the bush 9 to prevent rotation. The foot has a shank 15 and a beak 16 and the workpiece is fed into the slot 17. A nibbling punch 19, which may be cylindrical or semi-cylindrical, fits into an axial bore in the shaft 2 and is located and retained in position by a collar 22 and a pin 23. The hardened steel die 20 screws into the beak 16 and is held in position by a setscrew. The die 20 (Fig. 3) may be in the form of a block which fits between two cheeks of the beak 16 and has a disc-like flange 26 attached to the beak by screws 27. The Provisional Specification describes also a modification in which the nibbling punch and die are replaced by an upper reciprocating and a lower fixed shearing-blade. Specification 665,777 is referred to.
Patent GB-696728-A (GB)
Title: Improvements in apparatus for unloading containers from vehicles
IPC: B60P1/64
Filed: 1951-09-05
Abstract: 696,728. Load-handling appliances; vehicle fittings. ANDISON, S. I. Nov. 16, 1951. [Sept. 5, 1951] No. 20937/51. Classes 78 (iii) and 78 (iv). Means for unloading containers from vehicles comprises parallel legs 9 pivoted to the container and mounted on ground engaging feet 10. The legs 9 have the upper plate 8 and the container has fitted plates 3 with a boss 3a for a projection on the plate 8. The plates 3 have a groove 3b in which the plate 8 can slide, an end abutment 3c and a spring pressed catch 4, the catch being retained in the out of use position by rotating the plate 6. For unloading a container a latch 13 is engaged with the container and the vehicle is moved forwardly causing the legs to rotate to the vertical position. The catch 4 engages behind the plate 8 to hold the leg vertical and retain the container in the raised position. To load the container, the catch 4 is moved to the inoperative position, the vehicle is run beneath the container, and the legs rotate from the vertical position. The legs 9 are mounted on a pin adjustably secured between two side plates having a number of holes, the plates being mounted on a ground engaging member; by this means the length of the legs can be adjusted. The legs can be swung to inoperative position when not in use.
Patent GB-807031-A (GB)
Title: Improvements in or relating to apparatus for dispensing aerated or like liquids
Inventor: MARRIOTT CHARLES HENRY
IPC: B67D1/12
Filed: 1956-07-09
Abstract: 807,031. Dispensing liquids. PEPSI-COLA Ltd. July 9, 1957 [July 9, 1956], No. 21157/56. Class 116 In apparatus for dispensing aerated liquids from a bulk supply through a delivery orifice, a receptacle is supported in a tilted position so that the liquid impinges on its side wall at a small angle and the minimum of effervescence is caused. As shown, the receptacle 5 is supported below the orifice 3 on a pivoted forked arm 1 which is spring-loaded at 4 so that it is in the position shown when empty but becomes upright under the weight of the liquid. Guide arms 6 fixed to the dispensing apparatus engage the ends of the fork 1 and guide receptacles fed down a shoot 8 on to the support 1. In alternative arrangements (not shown). the guides 6 may be attached to the fork arms or may be replaced by upwardly inclined end portions to the fork arms. The spring 4 may be replaced by any other form of spring or counterbalance.
Patent GB-1112076-A (GB)
Title: Method for introducing a hydroxy group into a steroid molecule containing a keto group
IPC: C07J75/00
Filed: 1966-05-12
Abstract: The invention comprises a process for introducing a hydroxy group on to a tertiary carbon atom adjacent to a keto group in a steroid molecule by reacting the steroid with oxygen in a mixture containing a strongly basic enolizing agent and a reducing agent capable of reducing the hydroperoxy group formed and substantially insensitive to the oxidizing agent under the reaction conditions. Enolizing agents specified are alkali metal alkoxides, hydrides and amides, hindered alkali metal alkyl derivatives and tetra-alkyl ammonium hydroxides.  Reducing agents specified are tri-hydrocarbonyl phosphines, tri-alkyl phosphites and salts of alkyl sulphinic acids. Exemplified reactions introduce a -hydroxy groups at the 9 and 17-positions, and 5,8 and 14-hydroxylations are also mentioned.
Patent GB-837555-A (GB)
Title: Thresher machine body
IPC: A01F7/00
Filed: 1956-07-09
Abstract: 837,555. Combine harbesters. BRAUD, A. July 9, 1956 [July 7, 1955], No. 21216/56. Class 6(3). In a thrashing machine in which thrashed grain is fed into a hopper 15 and from thence via a screw conveyer 9 and a vertical conveyer 1 to a storage hopper 17, and in which waste material from the threshing process is fed to a hopper 16 and from thence via the screw conveyer 14 and a second conveyer 2 to a separator mechanism for extracting unthrashed grain from the waste, the conveyers 1, 2 are mounted on the exterior of the side walls of the machine and are enclosed by sheet metal conduits which may be threesided or four-sided, and are welded, rivetted, or bolted to the side walls. The conduits also serve to increase the rigidity of the walls of the machine.
Patent GB-1087215-A (GB)
Title: Data storage and selection apparatus
IPC: G06K17/00
Filed: 1966-05-13
Abstract: 1,087,215. Selecting records. INTERNATIONAL BUSINESS MACHINES COR-  PORATION. May 13, 1966 [May 24, 1965], No. 21260/66. Heading G4M. Data storage apparatus comprises a continuously rotating drum 20 having a plurality of compartments 26 in which cells 30 containing record strips are located. Each compartment has magnetic identifying indicia which are sensed at 200 and compared with a selected address to energize a solenoid 60 when the desired cell arrives at selection station 61. Solenoid 60 cams pins 56 on the selected cell into track 45, 46 so that the cell is withdrawn from its compartment 26 as drum 20 rotates further and continues under its own momentum until it is gripped by belts 71, 72 and is arrested at a station 74. Subsequently the cell is moved to translating station 76 where it is aligned with strip selecting apparatus by means of stops 81, 82. Strip selection and transducing apparatus of the type described in Specifications 918,581 and 918,582 may be employed. When a strip has been returned to its cell after a transducing operation, the cell is moved to station 78. When any vacant compartment or the compartment from which the cell was removed reaches station 190, a solenoid is energized to project a pin 188 carried by that compartment towards an arm 160. A camming surface on the arm is engaged by the projected pin 188 so that the arm 160 is gradually accelerated into synchronism with the vacant compartment. Another camming surface 169 on arm 160 engages a pin on the cell at station 78 and accelerates this cell along track 42, 52 so as to return the cell to the vacant compartment 26 by the time it reaches station 178. At this point the pin 188 disengages and arm 160 is spring returned to station 190.
Patent GB-282849-A (GB)
Title: Improvements in or relating to apparatus for separating dust from suspension in gases and vapours
IPC: B01D46/02
Filed: 1926-08-28
Abstract: 282,849. Waring, H., and Associated Lead Manufacturers, Ltd. Aug. 28, 1926. Filtering. - Dust-laden gases are cleansed by passing them through an inlet 12 to a cyclone settling chamber 10 whence they pass up through an internal cone 14 to a series of tubular tapering hessian &c. filter bags 16 secured by circular wedge clamps at their tops to a yielding counter-balanced plate 20. Specification 21200/12 is referred to.
Patent GB-189844-A (GB)
Title: Improvements in color photography
IPC: G03C7/46
Filed: 1921-08-10
Abstract: 189,844. Carpmael, W. P., (Deeks, H. C. J.). Aug. 10, 1921. Colour photography; plates and films with multiple sensitive layers.-In the production of monochrome prints, or multicolour photographs obtained by the superimposition of films carrying monochrome prints, the films employed contain colouring-matter consisting of resin or other transparent substance insoluble in water, combined with a dye. The films may be of celluloid coated with gelatine layers containing less colouring-matter nearest the celluloid than next the outer surface. In the form described, three selective-colour negatives are obtained side by side on a single plate, and three prints are produced in juxtaposition from these by contact or projection on a printing surface comprising a transparent base 6, preferably celluloid, carrying three coatings 9 each consisting of gelatine or its equivalent, a monochrome colouring matter in which a resin is combined with a dye, and a sensitizer such as potassium bichromate, the colours of the three coatings being complementary to those of the colour filters used in producing the negatives. The colouring-matter is prepared in a finely-divided state by dissolving in alcohol a dye-stuft together with a resin such as gumsandarach and spraying the solution through a small orifice into a closed chamber. Examples of suitable ingredients are given. The powdered colouring-matter is incorporated with a solution of gelatine in warm water and spread on the base 6, a number of applications being preferably made with the object of producing a gradual increase in colour-density from the base outwards. The coatings are sensitized in a solution of potassium bichromate, and printing takes place through the celluloid, which is stretched on a frame 7 during the printing, and development of the images. The superimposition of the three images in register is carried out in the manner described in Specification 190,424.
Patent GB-1011563-A (GB)
Title: Improvements in or relating to heating up furnaces
Inventor: WARD TREVOR
IPC: C03B5/235
Filed: 1962-06-01
Abstract: 1,011,563. Heating up furnaces. HOTWORK Ltd. July 23, 1963 [June 1, 1962], No. 21280/62. Heading F4B. A method of heating up a furnace from cold consists in injecting the combustion products of removable external burner at high velocity into the furnace so that said products mix with, circulate, and evenly heat up the furnace atmosphere. The burner is of the tubular type and preferably has a convergent mouth which projects through and is spaced from the furnace walls to enable diluent air or inert gas to be drawn in with the combustion products. By adjustment of the said spacing the temperature of the combined streams of gases may be varied without altering the combustion air/fuel ratio. Alternatively, the temperature of the combustion gases may be controlled by varying the quantity of fuel to be mixed with combustion air at the point of combustion in the burner as described in Specification 1,000,231.
Patent GB-971369-A (GB)
Title: Polymers of fluorocarbon epoxides
IPC: C08G65/08
Filed: 1962-06-04
Abstract: The invention comprises polyethers of tetrafluoroethylene epoxide having the general formula CF3-CH2-O-(CF2-CF2-O-)nCF2-COX wherein n=0 or is n the integer and X is F, OH, OR, NH2, NHR or a salt radical OM (e.g. ON or OK) where R is a monovalent organic radical and M is a monovalent metal. The compound where X=F may be prepared by contacting tetrafluoroethylene epoxide with activated charcoal at -80 DEG  to +40 DEG C.  Subsequent hydrolysis and introduction of -OR, -NH2, NHR and salt groups OM may take place by known methods. Example (1) describes the preparation of polymers having molecular weights of approximately 600, 1,000, 2,550 and 4,700 and Example (2) the preparation of compounds where n = 0, 1 or 2 and the conversion of these products to the above-mentioned derivatives, e.g. the acid fluoride of the trimer is treated with (1) methanol to give the methyl ester, (2) water to give the acid, (3) aqueous NaOH or KOH to give the sodium or potassium salt of the acid. (4) MgCO3 to give the magnesium salt.  (5) ammonia bubbled through a solution of the trimer in perfluorodimethylcyclobutane to give the amide.  (6) methylamine bubbled through the solution in (5) to give the methylamine salt and (7) ice and NH4OH to give the amide. Tetrafluoroethylene epoxide is prepared by oxidation of tetrafluoromethylene with molecular oxygen in presence of either actinic radiation or a free radical source e.g. bromine.ALSO:The invention comprises polyethers of tetrafluoroethylene epoxide having the general formula CF3-CF2-O-(CF2-CF2-O)nCF2-COX where n=0 or an integer e.g. up to 100 or more, and X is F, OH, OR, NH, NHR or a salt radical OM, where R is a monovalent organic radical and M is a monovalent metal e.g. Na or K. The compound where X=F may be prepared by contacting tetrafluoroethylene epoxide with activated charcoal at -80 DEG  to +40 DEG C.  Subsequent hydrolysis to -COOH and introduction of OR, NH2, -NHR and salt groups OM may take place by known methods.  The products are extremely soluble in perfluorocarbon solvents.  Example (1) describes the preparation of polymers having molecular weights of 600, 1,000, 2,550 and 4,700.  The polyethers are suitable for use as lubricants or hydraulic fluids.
Patent GB-1387245-A (GB)
Title: Apparatus for the manufacture of helically wound pipes
IPC: B29B11/02
Filed: 1973-05-04
Abstract: 1387245 Extruding for pipe winding DYNAMIT NOBEL AG 4 May 1973 [4 May 1972] 21454/73 Heading B5A [Also in Divisions F2 and G3] A plastics pipe is made by helically winding an extruded band 2 of thermoplastic material having a longitudinal tongue and channel so that the tongue of one turn is engaged in the channel of the previous turn in apparatus comprising a rotatable mandrel 3, at least one pressure means 4 for forcing the tongue into the channel, means 5 for monitoring the speed of the band 2 as it approaches the mandrel and means 6 for regulating the speed of rotation of the mandrel in accordance with this approach speed. As shown, the means 5 comprises a sensor which monitors the sag 9 in the band between the extruder head 11 and the mandrel. The pressure means 4 are a series of profiled rollers and an additional water cooled calibration shoe (10, 13, 14) (Figs. 3-5, not shown) is provided to ensure a uniform outer diameter of the pipe. The channel is widened by a wedge device to aid insertion of the tongue and hot air is blown along the seam to weld the tongue in the channel. The pipe is removed by take-off rollers. A sensing device (16) (Fig. 6, not shown) senses a metal basket (15) in the pipe end to determine the pipe length to be severed. A saw moves along with the pipe so that it cuts squarely. Specifications 1,231,660 and 1,321,187 are referred to.
Patent GB-614511-A (GB)
Title: Improvements in or relating to ventilators and like air supply and distributing devices
IPC: F24F13/062
Filed: 1946-07-18
Abstract: 614,511. Ventilators. FITT, T. C. July 18, 1946, No. 21467. [Class 137] An air distributing device of the kind comprising an inlet tube to which is attached a diffuser consisting of a number of nested plates with passages therebetween and arranged so that the crosssection of the passages increases in the direction of air flow, has an inlet opening and diffuser of elongated form and is provided in the inlet opening with baffle means adapted to break up the air flow and distribute it to the diffuser, so that it is discharged therefrom uniformly, thus avoiding localised draughts In the form shown in the drawings accompanying the Provisional Specification, baffle plates 20 are provided in the elongated inlet opening 10, which is formed from a metal strip 11 bent to form a tube. The air flow past the baffles, which are individually adjustable, is distributed thereby to the diffuser 14 which comprises four nested plates 15 of frustro-conical section welded or soldered to the tube 11. The diffuser may be made from a single strip of metal wound spirally, whilst a gauze may be provided spanning the inner ends 25 of the plates 15. Specifications 566,605 and 614,512 are referred to.
Patent GB-711235-A (GB)
Title: Improvements in loading apparatus for use on vehicles
Inventor: JENSEN ERLING
IPC: B60P1/44
Filed: 1951-09-12
Abstract: 711,235. Platform elevators on vehicles. JENSEN, E. Sept. 12, 1951, No. 21473/51. Classes 78 (3) and 78 (4) A platform 9 (Fig. 1) carried by a frame 6 so that it may swing about a pivot 6a between the position shown in Fig. 1 in which it is aligned with the floor 3 of a vehicle and a lowered position has associated with it a member 11 which is adapted to lie flush with the ground when the platform is lowered but automatically turns upwardly about a pivot 10 on the frame to retain a load on the platform 9 when the platform is about to be raised. The platform is raised by a cable 16 passing from a winch 16a on the vehicle, over pulleys 17. 15 carried respectively by the vehicle and by the frame 6, and secured to a bar 13 joining the front ends of a pair of arms which together form the member 11. The bar 13 limits the movement of the arms 11 in both directions by abutting on parts 6e and 6b of the frame 6. The frame is of U-form in plan view, the base of the U forming the pivot 6a which is supported by loops 7 adapted to slide on inclined guides 8 so that the frame 6 and platform 9 may be retracted to a housed position beneath the vehicle where it is supported by suitable hooks (not shown). To facilitate this retraction the rear parts of the ams 11 may be connected by elbow joints to the front parts so that the rear parts may be folded down over the platform. 9. The platform 9 may move with the arms 11 instead of being secured directly to the frame 6 as shown, and the frame 6 may be formed as :a triangle turned about a pivot at its vertex on the vehicle by two laterally spaced cables replacing the single cable 16. In the alternative construction shown in Fig. 5, the platform 26 is carried by a pair of rods 21 which are telescoped into a pair of connected tubes 20 when the device is to be housed beneath the vehicle. The platform 26 has flanges 26a by which it is pivoted to lugs 24 on the rods 21 so that it may be inverted before the device is housed. The tubes 20 may be swung about a shaft 19, carried in brackets 18 depending from the vehicle chassis, by a cable 16 passing from a winch (not shown) over a pulley 17 on the vehicle to be secured to a rod 23 carried by brackets 22 on the tubes. In the position shown in full lines in Fig. 5 the platform 26 is held in alignment with the floor 3 of the vehicle by the abutment of a stop 27 on the platform against the ends of the rods 21. As the tubes 20 and rods 21 swing downwardly however the platform swings to the position shown in broken lines in Fig. 5. A pair of .arms 29 pivoted at 29<SP>1</SP> to the platform is moved between the two positions illustrated, by rods 30 which are pivoted to a collar 29a integral with the arms 29 and guided by slots in the stop 27, and in a guide 31 secured to the platform, to abut against the Lugs 24. When the device is to be housed the arms 29 are folded over the platform 26 before the latter is inverted. The arms 11 (Fig. 1) or 29 (Fig. 5) may be replaced'by a further platform.
Patent GB-1046447-A (GB)
Title: Improvements in or relating to d.c. to a.c. signal converters
Inventor: DAVIS HERBERT MACDONALD
IPC: H03K17/60
Filed: 1962-06-04
Abstract: 1,046,447. Transistor switching and amplifying circuits. SOUTHERN INSTRUMENTS Ltd. May 2, 1963 [June 4, 1962], No. 21535/62. Heading H3T. A D.C. to A.C. signal converter for the measurement of D.C. currents comprises a pair of semi-conductor switching devices T4, T6 arranged to be both switched on and off simultaneously, each device being supplied with an input D.C. signal, their outputs being combined in such a way that residues produced in the switching process are substantially cancelled and an output signal is produced dependent on the difference between the two D.C. signals. A further pair of transistors T3, T5 may be employed, arranged so that T4 and T6 are switched on before T3 and T5 are switched off. The circuit is balanced so that residues due to capacitance and carrier storage and the ringing transients set up in transformer TR1 are minimized. The invention may be applied to a differential polarograph in which current differences between two cell circuits of the order of 10<SP>-10</SP> amps. may be detected in the presence of standing currents several orders larger. Reference has been directed by the Comptroller to Specification 990,685.
Patent GB-803004-A (GB)
Title: Saddle mountings for bicycles and the like
IPC: B62K19/36
Filed: 1956-07-12
Abstract: 803,004. Saddle supports. DAVIES, R. V. June 28, 1957 [July 12, 1956], No. 21539/56. Class 136(3) A bicycle or like saddle mounting comprises a stem 14 which slidably engages in the seat tube 10 of the cycle frame, a pivotally connected tube 20 to which the saddle is attached, and one or more control links 24x pivotally connected' at 23 to the pivoted saddle attachement tube 20 and to a clamping bolt 13 for tightening up the upper split end of the seat tube 10 to secure the stem 14 in adjusted position; the arrangement being such that, under' the control of the link or links 24x, in raising the saddle through the full range of adjustment the tube 20 to which it is attached is turned upwardly and rearwardly about its pivotal connection 21 with the stem from a substantially horizontal position to an upwardly and rearwardy inclined position, tightening up the clamping bolt to secure the stem 14 in its position of adjustment in the seat tube 10 serving also to lock the link or links 24x so as to secure the tube 20 in its corresponding adjusted position. A depending holed lug 18 is brazed to the tube 20 and is flanked by the correspondingly holed limbs of a bifurcated spigot member 17 at the upper end of the stem tube 14. The pivot pin 21 passes through the holes in the lug and the flanking limbs.
Patent GB-570479-A (GB)
Title: Improvements in or relating to means for preventing escape of pressure fluid from a pressure fluid container through an aperture therein formed by or for a tool or test piece
IPC: C10J3/34
Filed: 1943-12-23
Abstract: 570,479. Gas-producers. NORTHERN ALUMINIUM, CO., Ltd., and PRESTON, J. Dec. 23, 1943, No. 21545. [Classes 51. (i) and 51 (ii)] [Also in Group XXVI] A bearing member 1 for a tool or test-piece is angularly adjustable in a base member 3 on a pressure container, e.g. a gas producer, and has an annular recess 5 to which fluid is supplied under pressure greater than the -internal pressure of the container to maintain a seal about the tool 2.