baber/WOPTO huggingface dataset:
Patent GB-717290-A (GB)
Title: Improvements relating to spectacle frames or sun-glasses
Inventor: ROSSER GLYNNE DAVID
IPC: G02C7/08
Filed: 1952-08-01
Abstract: 717,290. Spectacles. HADLEY CO., Ltd. Aug. 4, 1953 [Aug. 1, 1952], No. 19500/52. Class 97(1) A front frame carrying lenses or filters is mounted to swing out of the line of sight on hinges each consisting of plates urged together with a spring and indented in complementary fashion so that the indentations engage when the front frame is in a forwardly projecting position. As shown, the front frame is integral with plates 10 and the plates 11 are integral with a brow bar which carries nose-pads and temples and, if desired, a fixed lens carrying frame. The plate 11 has a single corrugation 16 which engages either of the corrugations 17, 18 in the member 10 under pressure of a spring washer 15. A bolt 12 secures the parts and acts as hinge pin.
Patent GB-1348916-A (GB)
Title: Construction of electrolytic cell
IPC: C25C7/00
Filed: 1971-06-08
Abstract: 1348916 Fused salt cell F B HASKETT 8 June 1971 [8 June 1970] 19502/71 Heading C7B An electrolytic cell for fused salts has at least one horizontal anode 11 in the form of a slab of graphite supported between the refractory lining 7, 9 of the upper and lower halves of the cell. The cathode may be liquid lead or lead alloy flowing from inlet 27 to outlet 29. The cell may have part cylindrical or part spherical nickel clad mild steel shells 3, 5, held together by bolts 25. Electrical connection may be made to the anode by bus bar 21 and to the cathode via the metallic shell at 19, the liquid contacting the shell via perforation 12. The anode 11 which is completely submerged in the electrolyte 15 may have holes 33 through which evolved gases pass before escaping through outlet 31. The anode may be held directly between the refractory lining 7, 9 or a gasket 26 may be provided or refractory bricks may be introduced between the anode and the lower refractory 9. The cell is "freeze sealed" at the refractory/anode junction i.e. the fused electrolyte solidifies in contact with the atmosphere. The junction may be artificially cooled by water or air blowing. For sodium chloride electrolysis the cell operates at 825C., sodium is dissolved in the liquid cathode and chlorine is evolved at the anode.
Patent GB-1102578-A (GB)
Title: Improvements in or relating to pig feeders
Inventor: GREGORY FRED
IPC: A01K5/02
Filed: 1964-05-12
Abstract: 1,102,578. Pig-feeding apparatus. GREGORY & HEPHRUN Ltd. 11 May, 1965 [12 May, 1964], No. 19637/64. Heading A1M. A pig feeder comprises a tube 10 within which an open-ended control cylinder 15 is a slidable fit, the cylinder being carried by a rod 17 provided at its upper end 20 with a series of holes to receive a pin 23 secured to lid 14 so that the cylinder may be secured at varying heights above the base of circular trough 11. Triangular ribs 12 extend outwardly from tube 10 to the upper edge of trough 11 and between adjacent ribs is a pivoted flap 13 capable of being raised by the pig. The two parts 18 and 20 of rod 17 are detachably secured together. A triangular frame may be located within the trough and serves as an agitator, the frame being rotated as the pigs eat the feed.
Patent GB-401810-A (GB)
Title: Improvements in or relating to assorting tables or the like
IPC: G01G23/00
Filed: 1932-07-12
Abstract: 401,810. Work benches. THOMAS & CO., Ltd., R., and DAVIES, D. H., Bush House, Aldwych, London. July 12, 1932, No. 19712. [Class 61 (ii).] A table or bench, e.g., for assorting tinplates comprises a vertically-movable platform supported and arranged so that the height of a pile of articles placed thereon, measured from the floor, remains substantially constant, irrespective of the number or weight of the articles. Fig. 1 shows a table comprising two platforms A, A<1> supported on pillars D, D<1> by springs H, H<1>, and supporting piles K, K<1>. The compression of the springs may be adjusted by nuts J, J<1>.
Patent GB-689481-A (GB)
Title: Improved detachable handle for cooking utensils
Inventor: COX SHAUN MATURIN
IPC: A47J45/10
Filed: 1950-08-08
Abstract: 689,481. Detachable handles for cooking utensils. JOBLING & CO., Ltd., J. A. April 19, 1951 [Aug. 8, 1950; Sept. 28, 1950], Nos. 19714/50 and 23804/50. Class 61 (ii). [Also in Group XVII] A detachable handle for cooking utensils comprises a pair of hinged jaws adapted to grip a flange or lug provided on the rim of the utensil, each jaw being carried by a hand-grip and one jaw or hand-grip having a part to engage frictionally with a part of the other jaw or handgrip in order to hold both jaws in gripping position. As shown in Fig. 1 the main handgrip 1 comprises a length of stiff metal wire bent to U-shape and having secured to the ends of the arms a metal plate 2 'provided with depending and forwardly projecting ears 3 adapted to bear on the side wall of the utensil 4. The secondary hand-grip 5 comprises a length of stiff metal wire bent to form a narrower and shorter U than that of the hand-grip 1, the ends of the arms being bent outwardly to pivotally engage in holes in the ears 3. A jaw plate 7 secured to the ends of the arms of the handgrip 5, is bent upwardly and rearwardly at the forward edge to' form a resilient gripping surface 8 lying between the ears. The jaws are held in gripping position by an upwardly extending tongue 9 provided on the rear edge of the jaw 7 which frictionally engages with a downwardly extending tongue 10 on the jaw plate 2. In a modification, Fig. 5, the secondary hand-grip comprises a length of wire, the end portion of which engages in holes in the ears 3, the part of the wire lying between the ears being cranked to form a jaw 12. The remaining portion of the wire is bent as shown, the end 17 forming a stem which extends centrally of the arms of the handgrip 1. An upwardly bent part 16 is curved to allow frictional engagement with the tongue 10.
Patent GB-901471-A (GB)
Title: Improvements in or relating to wrapping machines
Inventor: FRANK ANTON RICHARD
IPC: B65B11/42
Filed: 1959-06-09
Abstract: 901,471. Wrapping machines; wrappers. VAN BUREN MACHINE CORPORATION. June 9, 1959, No. 19725/59. Class 94(1). A machine for wrapping articles such as cakes of soap comprises an oscillatable folding box, a vertical folding channel and two sets of heating and cooling means arranged alternately, to seal first the wrapper overlap and then the end folds. Articles C are thrust by a pusher 11 into the folding box 12 carrying the wrapper with them. The box includes elements, Fig. 4 (not shown), which form tucks at the ends of the leading face of the wrapper. The box rotates through 90 degrees and a rod 21 thrusts the article into the folding channel 38, the wrapper ends being thereby overlapped and the other pair of end tucks formed, a heater 32 and a cooler securing the overlap. At the base of the channel, plates 52 fold down one pair of end flaps and the other pair are folded on to the first when a plunger 53 thrusts the package between heaters 55. Coolers 61 complete the end seals.  The wrapper may be of laminated form consisting of layers as follows: outermost, gloss lacquer, then print, sulphite paper, grease proof lacquer, wax, and innermost, porous tissue.
Patent GB-1510519-A (GB)
Title: Surveillance systems
IPC: H04M11/04
Filed: 1975-11-25
Abstract: 1510519 Selective signalling SAAB-SCANIA AB 25 Nov 1975 [26 Nov 1974] 19771/76 Divided out of 1510518 Heading G4H In a surveillance system having a central unit connected to a plurality of terminal units having sensors, each terminal unit has a sensor status register with a memory cell for each sensor, and a change register with a memory cell for each sensor for storing information concerning a change in the status of the sensors and for retaining such information until the contents of both registers have been transferred to the central unit. In each terminal unit, the sensors are multiplexed to a comparator together with the contents of the sensor status register to detect changes, each change causing the sensor outputs to be stored in the status register and pulsing a dial-up unit to established a connection over the telephone network to the central unit. The address of the terminal unit and the contents of the two registers are sent, and the central unit sends a reply back, e.g. to give an alarm. The change register is provided in case a sensor status changes and then changes back before the new status can be sent to the central unit. A blocking register (with a memory cell for each of some of the sensors) can be set from the central unit and permits notification of status changes in said some sensors to be blocked either by disabling a gate between the comparator and dial-up unit or by inhibiting the comparator (at multiplexer time slots corresponding to the sensors to be blocked).
Patent GB-1428901-A (GB)
Title: Processing for high permeability silicon steel
IPC: H01F1/16
Filed: 1974-05-06
Abstract: 1428901 Heat-treating silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 6 May 1974 [7 May 1973] 19803/74 Heading C7A  Silicon steel containing in percentage by weight. is hot-rolled, cold-rolled at least once, decarburized and finally annealed to produce a cube-on-edge structure, the final cold rolling involving a reduction of at least 80% and being preceded by an anneal at 1400-2150F for 15 seconds to 2 hours with cooling from the maximum annealing temperature to a temperature in the range 750 - 1700 F at a rate not faster than that in still air, and cooling from that temperature down to 500F or below at a rate faster than that in still air, e,g. by liquid or a gaseous stream.
Patent GB-1217557-A (GB)
Title: Steam-turbine installation
IPC: F01K11/02
Filed: 1968-04-26
Abstract: 1,217,557. Steam turbines. LICENTIA PATENT-VERWALTUNGS G.m.b.H. April 26, 1968 [April 28, 1967], No. 19868/68. Heading F1T. In a multi-cylinder steam turbine plant at least one low pressure cylinder has a casing 1 mounted on, and rigidly connected to, a condenser 3 to form a structural unit, the unit being mounted on the sole plate 5 of the foundation and being provided with guide means 12 for vertical thermal movement in relation to the foundation. In the embodiment shown, there are two low pressure cylinders having outer casings 1 welded at 6 to a common condenser 3, the latter being located against axial and transverse movement by means 14, 13 respectively. Each inner casing 2 is supported by arms 7 resting on the machine bed 4, bellows 8 effecting sealing where the arms pass through the outer casing 1. The bed 4 also carries the shaft bearings 10 and is itself supported from the sole plate 5 on pillars 9. In a modification, Fig. 2 (not shown), the structural unit formed by the casing 1 and condenser 3 is mounted on springs (16) on the sole plate 5 and tension rods (17 or 19) are provided between brackets (18) on the casings 1 and the sole plate 5 or machine bed 4. The constructions are particularly intended to reduce the undesirable thermal effects which normally result when steam is passed directly from the boiler to the condenser, by-passing the turbine.
Patent GB-355432-A (GB)
Title: Improvements relating to machines for making butter prints
IPC: A01J19/00
Filed: 1930-07-01
Abstract: 355,432. Moulding butter by stationary-mould machines. POLLOK, J. C., 14, Muir Street, Hamilton, Lanarkshire, and MoERLANE, D. A., 9, Carbrook Street, Garngad, Glasgow. July 1, 1930, No. 19906. [Class 87 (ii).] In a butterprint moulding machine of the type in which a die 2 co-operates with a matrix 1 having an ejecting plunger 4, the die 2 is adapted to be swung manually about a vertical axis against the action of a spring into the operative position, retained by a latch 10, and then released from said latch by a retrograde movement of the die so as to be swung clear of the matrix by the spring. The die 2 is detachably secured to a carrier 5 engaging vertical guides 6<1> and entrained by a slide 7 connected to the hand-lever 3, The carrier 5 is restrained in the operative position by the latch 10 which is tripped by the striker 12 on its upward movement. The ejector 4 is carried by a rod 15, having a crosshead 16 engaging the guides 6<1>, and restrained in its lower position by a spring 15<1>. On upward movement of the die 2 the shoulder 22 on the arm 20 is brought into contact with the projection 17 and raises the ejector 4. After further movement, the tappet 23 strikes the bracket 24 and trips the lever 20 which allows the ejector 4 to fall again. The upward movement of the hand-lever 3 is assisted by the spring 30. The Provisional Specification describes an ejector which is urged towards the ejecting position by a spring and is restrained by a trigger which is released automatically when the carrier reaches its highest position.
Patent GB-416168-A (GB)
Title: Method of aerating slurries
IPC: B28C5/38
Filed: 1933-07-14
Abstract: 416,168. Foam. HARRISON, A. H., Gold Pines, Ontario, Canada. July 14, 1933, No. 19929. [Class 47 (ii).] An aerated slurry of inorganic building materials such as cement, plaster of Paris, lime, or clay, is prepared by the process of agitation in an enclosed space under pressure in the presence of an emulsifying agent, characterized in that a product of predetermined density is formed by regulating the pressure to a predetermined amount. The slurry is admitted to the closed space to but partially fill the space, so that the volume of air in the agitating chamber is greater than that incorporated in the slurry. The relative volumes of air and unaerated slurry in the mixing chamber are preferably 2 : 1. The aerated slurry may be agitated after relieving the pressure to reduce the size of the cells. In a preferred form the apparatus comprises a chamber 1 containing shafts 2, carrying a plurality of agitator blades 3, which revolve at 270 r.p.m. and have the ends bent at right angles along the sides of the chamber to scrape and clean the inner walls. Slurry is fed in at inlet 5 by a pump, and discharged at outlet 7 by a pump 8 driven from shaft 10. Impellers 11 to accelerate the travel of the slurry are provided. Air is admitted under pressure at 12. A travelling belt 16 is provided to remove the unaerated slurry. The time of agitation is approximately 2 minutes. Examples are given showing the density of the slurry which may be produced under different conditions.
Patent GB-286964-A (GB)
Title: Improvements in and relating to sliding calipers
IPC: G01B3/20
Filed: 1927-07-27
Abstract: 286,964. Borel, M. A., (Assignee of Challet, E.). June 11, 1927, [Convention date]. Linear-dimension gauges.-The bar or beam of a sliding calliper gauge is formed by a length of tape of rectangular cross section, and the fixed jaw comprises a separate piece mounted on the bar. The tube 1 is strengthened by a tube 3 of square section placed inside, one end of which rests in a V-shaped recess 4 formed in the fixed jaw 2, while the other end is engaged in a plug 5 secured by pins to the tube 1. The longer sides of the rectangular tube are extended at the end next the fixed jaw to engage over the latter to which they are removably secured by conical pins 12. As an alternative construction, the fixed jaw ends in a conical lug which enters within the tube instead of being provided with the V-shaped recess.
Patent GB-149838-A (GB)
Title: Sewing machine
IPC: D05B55/14
Filed: 1919-08-14
Abstract: 149,838. Fairweather, W., (Singer Manufacturing Co.). Aug. 14, 1919. Sewing-machines; frames; chain - stitching; governing needle thread; needles, driving; threads controlling otherwise than in stitch-forming; presser-bar lifting device.-The overhanging arm and head c of sewing-machines is formed with a continuous, unbrokan, and unobstructed surface for the purpose of enabling tubular articles, after being sewn, to be threaded thereon in succession without breaking the sewing-threads. The invention is described as applied to a twin-needle double chain-stitch sewing-machine. A bush 56 is secured in the lower end of the head and is provided with sockets for the needle-bar and presser-bar 29 respectively. Guides 59, 60 are also formed in the bush for the needle-bar actuating-link 12 and a guide piece 61 on the presser-bar. The needlebar lever 18 is pivoted inside the arm c and is driven in the usual manner from a crank and pitman bar situated within the standard. The presser-bar is controlled by a bell-crank lever 33 pivoted inside the arm near the head and connected by a rod 37 to another lever 43 pivoted in the standard. The rod 37 has a swivel connexion with a spring-pressed rod 45 which holds the presser-bar on the work. A treadle-rod is provided for lifting the presser-foot. The needle-threads are led from the tension devices through a channel 64 formed in the side of the head and closed, except for a narrow passage 64<1> by a plate 63. The plate 63 carries at intervals wire guides 65 into which the threads are passed by inserting them through the passage 64<1> and lifting them upwardly and inwardly when one of the V-shaped notches 81 is reached. This causes the threads to snap into the guides. Near the head, the groove 64 merges into an irregularlyshaped aperture 69 in which is held a channelshaped guide 70 into which the thread is introduced by the passage 64'. The take-up 76, carried by the needle-lever works across a slot 74 in the sides of the channel and has a rounded lower edge which, when the take-up is in its lowest position, causes the thread to slip round to the upper side. From the take up the threads pass through guides 8 on the needle-holder to the respective needles. The tension devices 54 for the needle and loop threads are arranged at the rear of the machine and are released when the presser-bar is raised by an offset extension 50 of the lever 43 with inclined faces bearing on the releasing-pins 53.
Patent GB-707039-A (GB)
Title: Ball bearing for linear motion
Inventor: MAGEE ROBERT COLLINS
IPC: F16C29/06
Filed: 1952-08-08
Abstract: 707,039. Rectilinear-motion bearings. THOMSON, J. B. Aug. 8, 1952, No. 19981/52. Class 12(1) A rectilinear-motion bearing for a shaft 21 comprises a sleeve 22, a ball retainer 25 between the shaft 21 and sleeve 22 and a plurality of longitudinally-extending oval-shaped ball raceways substantially filled with balls some of which are under load by being in contact with the shaft 21 and longitudinally-extending raised portions 26 of the sleeve 22. The retainer 25 is preferably of sheet metal divided into a plurality of sections by longitudinal slits 31, each section having a straight slotted load portion 20 joined to a no-load portion 23 by curved end portions 24. The retainer 25 and sleeve 22 are firmly secured together by end rings 36, Fig. 9. In a modification the shaft is supported externally of the bearing by posts 51, Fig. 10, which pass through longitudinal splits in the members 22, 25. The retainer 25 has end flanges 34<SP>1</SP>, Fig. 11, which are bent round the ends of the sleeve, 22. The edges of the outer sleeve 22 along the split may have flanges 55 which are adjustably spaced by a bolt 56, Fig. 12. The invention is applicable to shafts of rectangular cross section as shown in Fig. 13.
Patent GB-1372673-A (GB)
Title: Packing materials
IPC: C09K3/10
Filed: 1973-04-27
Abstract: 1372673 Gland and joint packing W L GORE & ASSOCIATES Inc 27 April 1973 [8 May 1972] 20013/73 Heading F2B A packing material comprises a core of polymer fluorocarbon preferably polytetrafluoroethylene wrapped in a tape of expanded porous tetrafluoroethylene having a longitudinal tensile strength of at least 3000 Ibs./m<SP>2</SP>. and an s.g. of less than 1À4, the tape being subjected to heat to fuse it in position without fusing the core and the temperature applied being above the crystalline melting point. The wrapping tape material may be made as described in Specification 1,355,373 and the core may be an extrusion or one or a number of tapes 4, 5, 6.
Patent GB-195992-A (GB)
Title: Improvements in lenses
IPC: G02C7/06
Filed: 1920-07-09
Abstract: 195,992. Redfern, C. G., (American Optical Co.). July 9, 1920. Spectacle lenses.-Comprises a set of optical lens blanks arranged in several series, each unit of each series consisting of fused and counterbored two-piece bifocal blanks, the face having the counterbore being finished to a definite curvature and the back surface left unfinished. Any required prescription may be made up, by selecting the appropriate unit of the appropriate series and grinding the back surface with a curved tool in accordance with the indications of a given chart. Each unit of a series is provided with a counterbore of different effective curvature to any other in the series, but corresponding units in each series have the same effective curvature of the counterbore. Numerical examples of the tools required are given on a chart accompanying the Specification, and the complete set of 60 blanks is also set out in a chart.
Patent GB-1209771-A (GB)
Title: Improvements relating to plastics compositions
Inventor: DRYER STANLEY RAYMOND COLLINS
IPC: C08K5/01
Filed: 1967-05-02
Abstract: 1,209,771. Plasticizing polymers. BRITISH PETROLEUM CO. Ltd. 23 April, 1968 [2 May, 1967], No. 20165/67. Addition to 1,068,936. Heading C3P. Synthetic plastics (eg. PVC) are plasticized or extended with a material derived from a multi-stage selective solvent re-extraction of an extract obtained, during the selective solvent extraction of a mineral oil, the re-extraction being carried out under a temperature gradient of 10-70‹ F., a solvent to feed ratio by volume of not more than 4: 1 and a column base temperature of not more than 160‹ F. and the final extract containing at least 90% by wt. of aromatics. Amounts of 11-100 parts per hundred parts by wt. of resin are used.
Patent GB-797840-A (GB)
Title: Improvements relating to hydrolically actuated diaphragm pumps
Inventor: PHILIP THOMAS BRUCE
IPC: F04B43/00
Filed: 1955-07-13
Abstract: 797,840. Hydraulically actuated diaphragm pumps. DISTILLERS CO., Ltd. June 26, 1956 [July 13, 1955], No. 20223/55. Class 102(1). A pump for pumping liquids, e.g., liquid CO 2  comprises a diaphragm pump 4 having inlet and outlet valves 5, 6, the diaphragm being actuated by liquid pressure generated by a reciprocating piston 1 in a cylinder connected to a reservoir 8 through a non-return valve 11 and an adjustable pressure relief valve 7. The actuating liquid is cooled by means of a cooling coil 10 disposed in the reservoir 8 or the connection between the diaphragm pump 4 and the piston 1 is surrounded by a cooler 2 ; alternatively the portion of the pump containing hydraulic medium may be surrounded by a jacket through which coolant circulates.