baber/WOPTO huggingface dataset:
Patent GB-1063950-A (GB)
Title: Improvements in and relating to extrusion presses
IPC: B21C23/21
Filed: 1965-06-25
Abstract: 1,063,950. Extrusion. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 25, 1965 [July 3, 1964], No. 27014/65. Heading B3P. An extrusion press which includes a container 6 for a billet 15, a die 4, and a plugging block 8 containing a ram 10, is provided with a passage 14 through which a lubricant for the billet is forced at high pressure. A flange 11 retains the lubricant in the block 8 surrounding the ram 10. The billet is introduced into the container and the block brought firmly into contact with a recess 9 of the container, the ram then being moved to the left to extrude the billet, Fig. 4 (not shown). Before the billet reaches the die the flange 11 clears the block 8 to allow lubricant to surround the billet. When the billet reaches the die a plug 7 which retains the lubricant within the container is removed. A by-pass system (not shown) permits the evacuation of excess lubricant.
Patent GB-299983-A (GB)
Title: Improvements in lenses
IPC: G02B9/34
Filed: 1927-10-12
Abstract: 299,983. Lee, H. W., and Kapella, Ltd. Oct. 12, 1927. Lenses.-To provide a lens with an aperture of F/1.8 and adequate corrections, the front doublet of a Petzval lens is replaced by a triple anastigmat lens, e.g. of the type described in Specification 155.640. The back doublet may be of the original form or with the flint component towards the focal plane. Alternatively, the triplet back element and the doublet may be interchanged. The focal length of neither triplet nor doublet exceeds twice that of the other, and the negative element of the doublet is either plano or double concave. Numerical data of two examples are given in the Specification.
Patent GB-247292-A (GB)
Title: Improvements in and relating to apparatus for drying gaskets on package, or the like, covers or ends
IPC: F26B15/26
Filed: 1924-11-13
Abstract: 247,292. Bisset, D. L., and Whittall Can Co., Ltd., A. R. Nov. 13, 1924. Articles traversed during drying.-Apparatus for drying the gummed ends of paper containers comprises two cylindrical drums 53, 57 which are provided with threads on their exterior and interior surfaces respectively, the threads serving as guides for the articles, which are rotated, and so elevated, by a series of rotating rods 46 carried by spiders 43, 47. Alternatively, the drums may rotate while the rods remain stationary. The articles are fed singly by means of a reciprocating slide 100, and should an article become bent or fail to enter the apparatus properly, it deflects an arm which operates a clutch through a cam 111 and link-work 112, 114, 115 to stop the machine. The articles are traversed to the top of the drums and are ejected on to a shoot 82 by fingers carried on the arms which support the rods 46. Air from a blower 117 is heated by a burner 116 and passes into a dished chamber 61 which supports the drums. The air leaves at the top of the apparatus and returns to the blower 117 by a pipe 125. In the apparatus described, two sets of drums 53, 57 are mounted on a common base 12, both being driven from one shaft 29.
Patent GB-477717-A (GB)
Title: An improved apparatus for the heat treatment of fatty oils in contact with steam
IPC: C11B3/14
Filed: 1936-10-07
Abstract: <PICT:0477717/III/1> Apparatus for the heat-treatment of fatty oils in contact with steam, more particularly for deodorizing, improving the colour, or polymerizing vegetable oils, comprises an oil vessel, a heater externally of the oil vessel, an ascending circulating pipe connecting the lower part of the oil vessel to the heater, an oil return pipe connecting the heater to the oil vessel, a vapour outlet connection from the heater, and a steam jet or steam injector in the lower part of the ascending circulating pipe.  As shown, the apparatus comprises a pair of oil vessels 1, 2 connected by valve-controlled flow and return pipes 4, 5 to a common heater 3. Pipes 6 connect the oil uptake pipes 4 to the vessels 1, 2.  A charging tank 10 supplies oil by pipes 11 and valves 12, 13 to pumps 14 connected to byepass pipes 15 opening into the pipes 4.  A steam injector 17 is fitted at the lower part of each pipe 4.  The heater may comprise a heating unit enclosed in a casing to the upper part of which the oil is supplied, and is preferably of the form described in Specification 476,975.  In use, the oil vessel is charged with oil from the tank 10 by means of the pump 14 or of the injector, and the vessel is then put into circulatory connection with the heater 3 by adjusting valves 7, 8, superheated steam being supplied to the injector to effect the circulation.  When the oil reaches the desired temperature, the valve 8 is closed and the oil circulated to and from the oil vessel (without passing through the heater) using steam without superheat, until the treatment is complete.  Should the steam injector fail, the oil may be circulated by the pump 14, and steam p supplied through a perforated pipe 18 in the oil vessel.  The oil may be treated with alkali in the oil vessel to remove free fatty acid before the steam treatment.  In modifications, the heater is mounted below the oil vessels, and the tank is mounted above the oil vessels.
Patent GB-227944-A (GB)
Title: Improvements in or relating to dish washing machines
IPC: A47L15/32
Filed: 1923-10-30
Abstract: 227,944. Breton, J. L. Oct. 30, 1923. Plates, dishes, and the like, washing.-Dishes &c. are placed in a vertical cylindrical cage 6 which is rotated within a tank 1 by successive jets of water and of air, supplied from a pump 10 and blower 39, alternately driven from the same electric motor 33, acting on the dishes which thus serve as paddles. The water is withdrawn from the tank by a duct 8 leading to a heater 9 and, after passing through a strainer 12, is pumped through vertical and horizontal perforated pipes 30, the angular positions of which can be varied to determine the direction of rotation of the cage and to enable the dishes to be washed on both sides. A hollow waste and overflow pipe 17 in the heater is prevented from being lifted until the gas cock 15 is moved out of the way of the pipe to shut off the supply of gas to the burner 16. A float-operated valve prevents the supply of fuel until the heater contains a sufficient quantity of water and an audible signal is given when such a state is reached. Alternatively a similarly-controlled electric or other heating device may be used. A coil through which cold water is passed may be immersed in the heated water in the heater so that the water in the coil is heated rapidly for use in washing the dishes the other water being used in rinsing them so that no delay occurs in the use of the apparatus in houses without a hot-water supply. Air is withdrawn from the tank by a duct 40 and is passed by the pump 39 through a pipe 41 to impinge on the dishes. Manually controlled clutches between the motor shaft and the pump and blower are provided and other clutches may be provided to enable the motor to drive other apparatus. The machine may be provided with a wooden cover to serve as a table, a portion of the cover being pivoted to give access to the interior of the cage.
Patent GB-1204222-A (GB)
Title: Optical projection system
IPC: G03B21/20
Filed: 1968-06-07
Abstract: 1,204,222. Optical projection systems. SYLVANIA ELECTRIC PRODUCTS Inc. June 7, 1968 [June 9, 1967], No.27196/68. Headings G2A and G2J.  An optical projection system comprises a condensing lens 10 forming an image at 11 of the entrance pupil of an objective lens, an arc-light source 13 off-set from the optical axis at 11, a spherical reflection 15 to return light from source 13 back through the source to lens 10, and at least one ellipsoidal reflector segment 18 having one focus at the source 13 and another in the plane of 11 at 16 to provide a real image source which will illumine a part of the exit pupil of said objective which is not covered by the source directly. Spherical segments may replace the ellipsoidal segment 18.
Patent GB-981203-A (GB)
Title: Process and moulding tool for manufacturing hollow or solid articles from thermoplastic or duroplastic materials
IPC: B29C43/36
Filed: 1962-07-16
Abstract: 981,203. Impact moulding thermoplastics- H. KNABEL. July 16, 1962 [July 15, 1961; May 23, 1962], No. 27208/62. Heading B5A. Thermoplastic material in powder or granular form is placed in a mould comprising a top die and bottom die, and an impact is applied whose kinetic energy causes the thermoplastic material to melt and fill the moulding space to form an article. Fig. 2 shows a top die 7 and a bottom die 5, which fit together (Fig. 3, not shown), to enclose a moulding space in the shape of a hollow beaker, an upper cylindrical part 8 of the top die then abutting the upper face of the bottom die. Thermoplastic material 14 is placed in the bottom die 5 and the top die lowered on to the material, which is then subjected to a blow from a drop-forging hammer on port 8. A knife 9, whose edge co-operates with the edge of part 8 of the top die, is raised to trim off surplus plastic (Fig. 3, not shown). The formed beaker is lifted out on a false bottom 12 mounted on a rod 11, and blown away by an air current. In Fig. 5 material 14 is introduced into a subsidiary cavity, through a bore 30. Rows 22, 23, when fully inserted into top and bottom dies 7, 5 just fill the subsidiary cavity, but do not penetrate into moulding space 15. In use, both rows are driven in simultaneously to impact mould the plastic. Dies may be wormed to 40-60 C. before starting operations, and may be cooled later. The moulding spaces may be evacuated prior to the impact step.
Patent GB-787642-A (GB)
Title: Improvements in or relating to electromagnetic deflecting means for cathode ray tubes
IPC: H01J29/76
Filed: 1954-09-20
Abstract: 787,642. Electric coils. CENTRE D'ETUDES ET DE DEVELOPMENTS DE L'ELECTRONIQUE CEDEL. Sept. 20, 1954 [Sept. 24, 1953], No. 27212/54. Class 35. [Also in Group XL (a)] A cathode-ray tube deflecting system comprises one or more pairs of spirally wound coils, the coils of each pair being oppositely wound and connected together in series. The coils may be rectangular, Fig. 5, or circular spirals, Fig. 4. Each coil may be folded over itself as shown in Fig. 7. The coils may be printed on an insulating backing which is bent around the tube neck. In a photographic process a copper foil is glued to a foil of plastic material or coated with a film of plastic material by spraying with an atomized solution of vinyl chloride in methyl-ethyl-ketone. A photosensitive material is deposited on the copper foil. A picture of the coils is impressed on the photo-sensitive film and after developing and washing the unprotected areas are washed away. The composite foil is brought to uniform thickness by inserting colloidal iron between the turns. Several foils may be piled together to form a deflecting unit of suitable power, all the coils in the pile being converted together in series.
Patent GB-602765-A (GB)
Title: Improvements in and relating to releasing apparatus for ships' life-boats
IPC: B63B23/58
Filed: 1945-10-17
Abstract: 602,765. Boat-disengaging gear. AGGE, N. Oct. 17, 1945, No. 27254. Convention date, Dec. 18, 1940. [Class 115] Davit - releasing gear comprises a hooklever 1, 1a, whose release from the lug 2 is effected by rotation of a longitudinal shaft 11 on to which the locking members 10 are directly secured, one at either end. The members 10 have an oblique or rounded surface 17 which is acted upon by the end 1a of the hook-lever and quickens the release. The shaft 11 is placed in an elevated position in the boat and turned by a lever, which may be at the end or the middle of the shaft. The two locking members 10 may be mounted on the shaft 11 with slight relative angular displacement if the handle is at one end of the shaft.
Patent GB-883631-A (GB)
Title: An immersion temperature-sensing device
Inventor: MEAD HAROLD GRAY
IPC: H01R13/64
Filed: 1958-02-03
Abstract: 883,631. Measuring temperature electrically. LEEDS & NORTHRUP CO. Feb. 3, 1958, No. 27306/61. Divided out of 883,629. Drawings to Specification. Class 40 (1). The subject-matter of this Specification is included in Specification 883,629 from which it has been divided but the claims relate to a temperature-sensing assembly including an expendable unit comprising a projecting temperature-sensitive element sheathed by a refractory insulating member the unit being mounted within one end of a heavy paper tube through which conductors from the unit extend and from which the sheathed temperaturesensitive element projects.
Patent GB-358234-A (GB)
Title: Improvements in and relating to the decortication of fibrous plants
IPC: D01B1/22
Filed: 1930-09-13
Abstract: 358,234. Decorticating and stripping fibrous stalks. TEBYRICA, I. W., Caixa Postal, 1330, San Paulo, Brazil. Sept. 13, 1930, No. 27411. Convention date, July 9. [Class 120 (i).] Leaves, buds, and twigs are removed from the stem of a textile plant such as the Hibiscus at the same time as the bark is stripped, by passage through a machine consisting of two contacting corrugated rollers a, b and an apertured plate d; the end of the stem is passed through the aperture and gripped by the rollers, which crack the bark off while the edges of the aperture remove leaves &c.
Patent GB-942345-A (GB)
Title: New and improved explosive elements
Inventor: SEED JOHN BRYAN
IPC: F42B3/02
Filed: 1961-07-28
Abstract: 942,345. Blasting cartridges, IMPERIAL CHEMICAL INDUSTRIES Ltd. July 4, 1962 [July 28, 1961], No. 27438/61. Heading F3A. The cartridge described in Specification 693,795 is modified to allow for expansion due to variations in ambient temperature by providing flutes 17 in the cylindrical metal wall 11. The flutes may be produced by pressing the canister in a mould, either before or after filling with explosive. The charge may be ammonium nitrate 91.85 parts, orthonitroluene 8.0 parts, water 0.15 parts, all parts being by weight. Specification 776,185 also is referred to.
Patent GB-762671-A (GB)
Title: Improvements in soil stabilising
Inventor: FOULGER FRANK
IPC: C09K17/40
Filed: 1953-10-08
Abstract: 762,671. Soil stabilization. GRANT, D. S., and LYON, L. W. Jan. 10, 1955 [Oct. 8, 1953], No. 27622/53. Class 68 (1). To permit of the filling of the voids in and the stabilization of a soil at an optimum moisture content and compaction cement, which has been treated with means that render the cement particles water repellent until they are vigorously agitated in the soil and which thereafter disassociates from the particles and re-attaches to hygroscopic particles in the agitated soil, is mixed therewith, and either simultaneously or separately there is also mixed with the soil a water resistant filling, e.g. natural or artificial asphalt powder, in a quantity equal to the volume of the voids in said untreated soil when compacted. The cement may be such as is described in Specification 762,669, which is referred to.
Patent GB-369545-A (GB)
Title: Two-stroke controlling device
IPC: B60T11/10
Filed: 1930-09-16
Abstract: 369,545. Fluid-pressure brakes and other apparatus. HOUPLAIN, G., 40, Rue Bargue, Paris. Sept. 16, 1930, No. 27627. Convention date, March 22. Void [Published under Sect. 91 of the Acts]. [Class 103 (i).] Fluid-pressure apparatus for operating brakes, for use as a hydraulic jack or for other purposes, wherein an auxiliary piston is first displaced to take up the slack or idle stroke in the mechanism, a main piston then becoming operative to apply the pressure comprises a small piston 9 connected to the brakes &c. and slidable in the tubular pistonrod 4 of the main piston 3 which normally seats at 5 on the end wall of the main cylinder 1. A spring-closed valve 42 controls access of the pressure fluid to the cylinder 1. Balls 32 disposed in recesses in a collar 31 free on the rod 11 of the piston 9 are arranged to wedge in a tapered recess 33 in the end of the pistonrod 4 to clutch these rods together during the operative stroke of the piston 3. In the construction shown, operation is effected by a pedal 40 connected to a piston 38 which forces fluid through the port 2 so as first to move the piston 9 and when by reason of the idle stroke in the brake mechanism &c. having been taken up the fluid pressure rises sufficiently to open the valve 42 pressure fluid is supplied to the cylinder 1 to act on the main piston 3 which through the clutch device 32 and rod 11 acts on the brakes &c.
Patent GB-762674-A (GB)
Title: Improvements in or relating to burners
Inventor: FLOOD HARRY GUY
IPC: F23D14/42
Filed: 1953-10-08
Abstract: 762,674. Gas burners. MULLARD RADIO VALVE CO., Ltd. Oct. 8, 1953, No. 27676/53. Class 75(1) A burner comprises a gas and/or vapour inlet leading into a first-chamber connected through a plurality of passages to a second chamber communicating with a long narrow arcuate or annular burner slit, so proportioned that a thin flame is obtainable, the outer edge of which is either concentric with the burner slit or in a plane parallel to the plane in which the outlet edge of the slit lies. The flame may be directed outwardly or inwardly, e.g. to form a truncated cone, or it may be cylindrical. The burner may comprise arcuate upper and lower members 1, 2, Fig. 3, bolted together and having arcuate recesses co-operating to form chambers 4, 6 separated by engaging pairs of projections 9, 11. Gas or vapour is supplied through two inlets 13 to the outer chamber 4 and passes through flow restricting passages (not shown) between the pairs of projections 9, 11, into the chamber 6, to discharge through an arcuate narrow slit formed between spaced surfaces 16, 17 on the members 1, 2. The ends of the chambers 4, 6 are closed by plates 19 secured by bolts 20. In an alternative construction the burner body comprises upper and lower annular members and the gas is discharged radially outwardly through a narrow annular slit. In a further construction the burner body comprises inner and outer coaxial annular members 1, 2, Fig. 6, secured together by bolts 12, and gas is supplied to the first chamber 4 through four inlets 22 (not shown), through the end plate 19, and flows through passages formed by cooperating grooves (not shown) in the members 1, 2, into the second chamber 6. The burner outlet slit is formed between frustoconical surfaces 16, 17, so as to provide a convergent frusto-conical flame, particularly suitable for sealing a glass plate to the end of a glass cylinder.
Patent GB-321771-A (GB)
Title: Improvements in or relating to high frequency amplifiers
IPC: H03H7/01
Filed: 1928-09-27
Abstract: 321,771. Bailey, C. E. G., and Gramophone Co., Ltd. Sept. 27, 1928. Thermionic amplifiers. - In a highfrequency amplifier the coupling is effected by a tuned circuit 2 in parallel with respect to the anode circuit of the valve and by an auxiliary circuit 3, 5, 6 in series between the anode of the valve and the grid of the succeeding valve. The auxiliary circuit is less heavily damped than the tuned circuit 2 and is provided to reduce the amplification of the carrier and lower audio frequencies to compensate for the loss in the circuit 2 of the higher audio-frequencies. The Figure shows the series circuit autotransformer coupledrand'provided with resistance 7 to give the desired damping since the circuit 2 is damped by the valve V1. The tuning condensers of the two circuits may be mechanically coupled. The coupling is preferably employed in the intermediate circuit amplifier of a supersonic heterodyne receiver.
Patent GB-1355086-A (GB)
Title: Rotary positive-displacement compressors
IPC: F04C27/00
Filed: 1971-06-14
Abstract: 1355086 Rotary positive-displacement compressors TRW Inc 14 June 1971 [22 June 1970] 27806/71 Heading F1F A sliding-vane compressor is lodged in a housing 11 and has a rotor 15 with diametrical pairs of spring-loaded vanes 18, which have pivoted shoes 19 engaging with the inner peripheral wall 13 of a fixed member 12, a pressureloaded member 38 being provided in a region 20 to prevent leakage between the high and low pressure sides. An inlet 24 is formed in one of two end caps (not shown) on the member 12. An outlet 25 communicates with a space 26 within the housing. The member 38 is flexible and resilient and is secured to the bottom 44 of a portion 35b of an axially-extending groove 35 by e.g. an adhesive, welding or brazing. A gap 41 and a port 36 controlled by a one-way valve 37 give compressed fluid access to the back of the member 38 and allow any fluid trapped between the rotor and the portion of the member 12 betwixt the outlet and the member 38 to escape. The member 38 may be replaced by a flexible and resilient member 56, Fig. 3, retained in an axially-extending groove 50 by the rotor and furnished with notches, Fig. 4 (not shown), on its leading edge 53.
Patent GB-605205-A (GB)
Title: Screw and nut mechanisms
IPC: B62D3/06
Filed: 1945-10-23
Abstract: 605,205. Gearing for conveying rotary motion. MILL, A. P. Oct. 23, 1945, No. 27889. [Classes 80 (i) and 80 (iii)] In screw and nut steering gear having an associated rocker arm actuated by the nut, the nut is rotatable in relation to the housing by means of a roller or the like carried by the nut engaging a fixed curved guideway. As shown, the steering rod 12 has a screw part 16 on which are mounted two half-nuts 26 adjustably secured to a cylindrical portion 30 rotatable in a cylindrical housing 20. The portion 30 has a projecting shank 28, rotatably carrying rollers 56, 70. The roller 56 moves in a guide 60 on a rocker arm 62 integral with the rock-shaft 66, and the roller 70 moves in a curved guide 54 in a cover-plate 46 in the housing 20, the guides 54, 60 being substantially perpendicular to each other. The guide 54 may be of a regular or irregular shape and may be formed directly in the housing. Backlash between the screw 16 and nut 26 is taken up by using half washers 36, 38 of different thicknesses (see Fig. 7). Specification 502,745 is referred to.
Patent GB-1188782-A (GB)
Title: Grab apparatus for Picking up Cylindrical or Conical Articles.
Inventor: THOMAS HANS
IPC: B66C1/02
Filed: 1968-06-12
Abstract: 1,188,782. Suction lifting heads. KERAMIKMASCHINEN GORLITZ VEB. 12 June, 1968, No. 27928/68. Heading B8H. A suction lifting head for cylindrical or conical pipes 14, Fig. 2, comprises sealing lips 6 which are drawn into sealing contact with the load by the suction, and are bridged by a flexible apertured sheet 1. The latter forms a suction chamber 4 with a profiled sheet 3. Arms 10 and a tumbuckle 11 provide means for adjusting the curvature of the sheet 1. End seals 9, Fig. 1 (not shown), are provided. Fig. 3 shows an embodiment which includes a stamp 28 with interchangeable types 29 mounted on a spring-loaded rod. The stamp is pulled into contact with the pipe by suction acting on a diaphragm 18. The rod carrying the stamp operates a switch 31 through a pivoted arm 32. The switch acts either on a working contact or as a lock for the means which transport the suction head.
Patent GB-944786-A (GB)
Title: Improvements in hydraulically operated earth-working machines
IPC: E02F3/32
Filed: 1962-07-20
Abstract: 944,786. Shovelling machines; earth graders. ETABLISSEMENTS F. POTAIN & CIE S.A. July 20, 1962 [Aug. 3, 1961], No. 27960/62. Heading E1F. To ensure of substantially horizontal movement of a tool, e.g. bucket, scoop 12 or grader, during the major portion of the traverse of the tool in contact with earth by a ram 9 acting between a vertically swingable boom 5 and a tool-carrying arm 8 pivotally mounted at 7 on the boom the ram 6 for vertically swinging the boom is so connected to the boom and to the arm that as the arm swings relatively to the boom the boom swings vertically to cause the tool to appropriately rise or fall as necessary for horizontal movement thereof. A transversely extending stud 6a on the piston rod of the ram 6 may slide in an elongated opening 16 in the boom 5, or be connected to a lever pivotally dependent from the boom, or to one arm of a two arm lever pivoted on the boom whilst a rod 17 of fixed length is pivotally connected between the arm 8 and the stud 6a or to the other arm of the two arm lever.