baber/WOPTO huggingface dataset:
Patent GB-919476-A (GB)
Title: Improved belt drive
IPC: F16G5/16
Filed: 1960-01-16
Abstract: 919,476. Driving belts. JONES, C. W., [trading as JONES & SON, C. W. [Firm of]]. April 12, 1961 [Jan. 16, 1960], No. 1651/60. Class 80 (1). A grooved pulley 10, Fig. 3, is engaged by an inner V-belt 12 on which is superimposed one or more flat or V-belts 16 which may or may not contact the pulley walls and which frictionally engage the belt 12 to participate in the drive without being rigidly secured thereto so that relative movement between the inner and outer belts is allowed during drive. In one form, Fig. 4 (not shown), the grooves of a multigroove pulley are engaged by separate V-belts whose outer surfaces are frictionally engaged by a single wide flat belt. In another form, a multi-groove pulley is engaged by three V-belts, each of which, 24 (Fig. 5), consists of a number of overlapping strips secured together by pins 28, the outer surfaces of the three belts being frictionally engaged by a single flat belt 26 of nylon or other material. The inner and outer belts are loosely coupled by the pins 28 which are extended to engage slots in the belt 26; alternatively, the belt 26 may carry pins engaging slots in the belts 24.
Patent GB-581349-A (GB)
Title: Improvements in insulators and in the method of mounting same
IPC: H01B17/14
Filed: 1945-01-22
Abstract: 581,349. Insulators. GROCOTT, T., and GROCOTT, W. Jan. 22, 1945, No. 1673. [Class 36] An insulator a, Fig. 1, is secured to a bracket c, Fig. 2, by means comprising a slot a<2> in the insulator and a length of string or similar fibrous material d engaging, or engageable with the bracket. The insulator may have a bayonet slot a<1> and a dual key hole slot a for the bracket, and the bracket may have a hole c<1> for the string d, and slots c<2>, c<3> for locking it to a vertical post.
Patent GB-925182-A (GB)
Title: Silver base semiconductor doping alloys
IPC: H01L21/00
Filed: 1960-01-18
Abstract: A semi-conductor doping alloy contains in percentage by weight:- .B..0.01-1 .Ge, Pb, Ga, Sn, In, Al, Si (one.. ..or more).0-6 .Ag..balance The alloy is prepared by mixing together the constituents in particulate form having an average size of up to 150 microns, compacting the mixture at 5-60 tons/sq. inch and heating the resultant compact for at least 1/2 hour in an inert atmosphere at a temperature between 600 DEG  C. and the melting point of silver.  The compact may then be coined, with or without subsequent sintering, and then cold rolled to the desired thickness.  Rolling may be facilitated, particularly if the alloy contains silicon, by intermediate annealing, consisting of, for example, heating at approximately 600 DEG  C. in an inert atmosphere for at least 1/2 hour after each 30% reduction in thickness.
Patent GB-1045324-A (GB)
Title: Improvements in the production of heat-shrinkable thermoplastic tubing
Inventor: CROSS FRANK BAYNHAM
IPC: B29C48/10
Filed: 1964-02-14
Abstract: 1,045,324. Tubular films. VISCOSE DEVELOPMENT CO. Ltd. Feb. 4, 1965 [Feb. 14, 1964], No. 1699/64. Heading B5B. Heat-shrinkable tubing is made from a thermoplastic polymer which is extruded in molten form from an annular extrusion orifice 2, the tubing being drawn from the orifice by a pair of nip rollers 8, that portion of the tubing located between the extrusion die 1 and the nip rollers 8 being inflated by means of air introduced into the tubing through a nozzle 3 in the extrusion die, and the tubing being so cooled by means of an annular jet of chilled air 7 directed on to the tubing immediately adjacent the extrusion orifice, in a direction away from the orifice, that inflation of the tubing takes place within a temperature range such that the stretching of the tubing imparts heat-shrinkability to the tubing. Chilled air is supplied at inlets 5 to coaxial annular nozzle 4 which has internal diffusion baffles 6, and leaves via annular orifice 7. Preferably, the annular orifice is not more than ¢inch from the extrusion orifice and the annular air jet, suitably of internal diameter approximately 1 inch, forms an angle of 25 to 50 degrees with the longitudinal axis of the tube. The gap at the extrusion orifice may be in the region of 0.025 inch, and the external diameter thereof 1/4 to <SP>5</SP>/16 inch. The diameter of the finished tubing may be less than 6 inches, and the wall thickness less than 0À004 inch. Blow ratios (i.e. ratio of initial to final diameter of tubing) of 2 : 1 to 10 : 1, especially 4 : 1 to 6 : 1, may be used, the shrinkability of the film in the transverse direction being at least 25%. Air jet temperatures are suitably less than 10 C. Polyvinyl chloride may be extruded at a melt temperature of 165-180 C., and polystyrene at 140-150 C.
Patent GB-764431-A (GB)
Title: Improvements in or relating to device for removing meat from coconuts and similar products
IPC: A23N5/03
Filed: 1955-01-20
Abstract: 764,431. Shelling coconuts &c. REY, H. D. Jan. 20, 1955 [Jan. 29, 1954], No. 1741/55. Class 28(2) The meat is removed from a half coconut 31 &c. by pressing it against a spoon shaped cutter 24 with sharp sides whereby the cutter holder 15 recedes upwards within its sleeve 12 until its head 18 contacts a rotary hammer or cam 10 which imparts reciprocation to the cutter. On withdrawal of the coconut from the cutter, the cutter is free to slide down by gravity so that it ceases to be reciprocated. A spring 28 may assist the sliding down. The cam 10 on a rotated shaft 8 may reciprocate two or more cutters. The cutter shank 25 is screwed into the threaded sleeve 22 which is screwed over the end of the sliding tool holder 15 which is prevented from rotating in its sleeve 12 by its ribs 19 projecting into slots in the sleeve 12. The top end of 15 is flanged at 18 to prevent it falling out of the holder, and is further provided with a head 17 to receive the blows of the cam or hammer 10. The sleeve 12 is screwed more or less within the bore 5 to vary the stroke of the hammer 10 on the tool, and is secured by a lock nut 14. The device is mounted at a convenient height on a stand 3.
Patent GB-140479-A (GB)
Title: Improvements in kinematographs
IPC: G03B21/32
Filed: 1918-01-31
Abstract: 140,479. Schlicker, H. C. Jan. 31, 1918. Kinematograph apparatus. - A kinematograph camera for taking pictures in a helical path on an endless film, and having an intermittently-rotated drum which carries the film, and an objective which intermittently moves transversely to the film, is so constructed that films in holders may be inserted in daylight, and is driven by a spring motor; various other improvements are also made. As shown in Figs. 1 and 2, the camera comprises a casing having partitions 18, 19 forming a chamber for the reception of a film-holder 25, and has an objective in a slide 82 which is intermittently moved in guides 83, 84. The film-holder contains a prismatic roller 36 and a cylindrical roller 37, the film 50 passing round the rollers, and the roller 37 being mounted in a frame 38 pressed by a spring 39 so as to tension the film. A spring motor 109 is housed below the partition 19 and is geared by bevel-wheels 108, 110, to a governor 115, and by the bevel-wheel 108 and bevel-wheels 107, 105, 104, 101 to a combined spur and bevel wleel 74. The wheel 74 may also be driven by a handle 100, and from it the film, objective, and shutter are operated. The shaft of the wheel 74 carries a pin-wheel engaging a star-wheel 71, and the shaft of the star-wheel carries a wheel 67 engaging a wheel 54 on the shaft of the roller 36, and also a sprocket 70 connected by a chain 95 to a sprocket 94 mounted on a screw 86. The roller 36 and screw 86 are thus intermittently rotated,. and the objective slide 82 is moved by the screw 86, through an arm 89 with a fixed jaw 90, to which is hinged a jaw 91 engaging the screw. The wheel 74 also engages a spur-wheel 75 on the shaft of a shutter 76 comprising a tube with two opposite quadrants cut away. The light acting upon the film is limited to that passing through the objective, by means of fixed partitions 21, 22, by a flexible curtain 96 attached to the slide 82 and wound on spring-actuated rollers 97, 98, and by a masking-plate 85 carried by the slide 82 so as to be close to the film. The filmholder 25 is inserted in the casing of the camera through a door 15, and has a side cover 31 on which the rollers 36, 37 are mounted, and an opening 56 in a curved forward end which is normally covered by a slidiug door 57. When the holder is inserted, a ledge 60 on the door 57 is engaged by hooks 59 on springs 58 so as to cause the door to be pulled open. Means for properly pooitioning the film-holder in the camera are provided. When the film-holder is being removed from the camera, the door 57 closes automatically, and after the film-holder has been removed, the objective slide can be moved along to its starting point by first swinging the jaw 91 out of engagement with the screw 86.
Patent GB-1039231-A (GB)
Title: Continuous process for the manufacture of bis(2-hydroxyethyl) terephthalate and lowmolecular weight polymers thereof
IPC: C08G63/00
Filed: 1963-01-15
Abstract: A continuous process for producing a bis(hydroxyalkyl)terephthalate by the catalytic reaction of a terephthalate of a C1- 8 alkanol with a C2- 10 polymethylene glycol is characterized by a static hold-up of at least 25% of the reactants in the reaction zone; the product may be converted to a polymethylene terephthalate of 8-16 degrees of polymerization by passing it through a heated zone in the form of a thin film.
Patent GB-559441-A (GB)
Title: A castor-action self-centring spring-framed safety motor-cycle of improved design
IPC: B62K25/22
Filed: 1943-02-04
Abstract: 559,441. Motor cycles. THOMSON, R. Feb. 4, 1943, No. 1843. [Classes 79 (iii) and 136 (i) and 136 (iii)] The frame comprises a forked steel pressing O bolted to a pair of laminated springs D bolted to forgings E provided with yokes F for the rear wheel axle. Cross-bars G, J are connected to the frame member O by stays P, and these cross-bars are connected by bars W and the engine and gearbox cradle U. V. The rear crossbar G is further connected by links H to the forgings E, and the front cross-bar J carries links I the forward ends of which carry a vertical steering pivot K for the front wheel hub. Coil springs L are interposed between the links I and the cradle member U, and a laminated spring M is provided between the steering head and the tops of wheel fork or blade members N. The handlebars are mounted on the frame O and are connected to the fork N by steering links Y. The frame is formed with three compartments A, B, C, for oils, tools, accumulator &c. and may be provided with a seat for two riders.
Patent GB-667082-A (GB)
Title: Method of manufacture and machine for hot-stamping of dog-spikes
IPC: B21G3/28
Filed: 1950-01-25
Abstract: 667,082. Making spikes. SOMMER, I., and ALMAAS, O. Jan. 25, 1950, No. 1918/50. Classes 83 (ii) and 83 (iv). Forging; shearing.-A method of forging metal dog-spikes comprises performing, all in one machine, the steps of cutting off the heated metal to the required length, pointing the spike and upsetting and shaping the head. A machine for carrying out the invention comprises a housing 13 containing a punch 19 and die-pieces 3 and 5 carried by pivoted jaws 4 and 8, respectively, having rollers 9 and 11 engaging the upper and lower parts of the housing. The upper die-piece 5 is connected to the jaw 8 by screws 6 and springs 7. Both jaws are pivoted at 17 and are moved towards the punch 19 by a piston 18. The lower jaw 4 which has a cutting-blade 2 is raised by a wedge 10 as the jaws move towards the punch 19. The head of the spike is forged by means of an upsetting-die C (Fig. 4). In operation a heated iron bar 1 is fed through slot A (Fig. 4) in between the jaws 4 and 8 until it abuts against the stop 14. The piston 18 moves the jaws towards the punch 19 and as the lower jaw is raised by the wedge 10 the bar is cut to length by the cutter 2. Further movement of the jaws forces the bar against the punch 19 which is the shape of the spike point and the closed die pieces 3 and 5 which have cutting edges correspondingly shaped to cut a point on the bar I. In the heading operation the piston 18 remains stationary and the stamp C is thrust through the opening B (Fig. 4), the bar being held firmly by the punch 19, the V-shaped portion of the die-pieces 3 and 5 and the cutter 2 which is backed up by a beam 21. After the heading operation the pusher 18 is withdrawn and as the lower jaw descends the dog spike (Fig. 6) falls out of the die block.
Patent GB-649273-A (GB)
Title: Improvements in or relating to electron velocity modulation apparatus
IPC: H01J25/12
Filed: 1948-01-22
Abstract: 649,273. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. Jan. 22, 1948, No. 2003. Convention date, Jan. 22, 1947. [Class 39 (i)] An electron velocity modulation device comprising an input and an output cavity resonator separated by a drift tube adapted to be held at a D.C. potential different from that of the resonators and means for projecting an annular beam of electrons in succession through the input resonator the drift tube and the output resonator is characterized in that the said resonators and drift tube are constructed of magnetic material and are adapted to be magnetically polarized so as to form a magnetic lens on either side of the drift tube, the drift tube being oppositely polarized at its two ends. In the arrangement shown, the drift tube 6 is made of magnetized steel, the magnetic circuit being completed by a soft iron cylinder 9 joining the input resonator 4 and the output resonator 8. The annular electron beam 12, Fig. 2, from the cathode 1 is brought to a crossover at the interaction gap formed by the reentrant wall of resonator 4. The magnetic field 13 between the end of the drift tube. and the adjacent resonator wall causes the divergent electron beam to be collimated as a hollow cylindrical beam through the drift tube 6. After emerging from the drift tube, the electron beam is converged again along the path 15 to form a cross-over at the interaction gap of resonator 8. Maintainance of the shape of the beam throughout the length of the drift tube may be assisted by means of a rod-shaped conducting member of non-magnetic material introduced axially into the drift tube and held at a lower potential than that of the drift tube. This rod expands the cylindrical beam and thus lowers the current density and hence the space charge in the drift tube. In an alternative construction, the permanent magnet drift tube is replaced by a cylinder of soft iron magnetized by a coil surrounding the cylinder and enclosed in a glass envelope. In other alternative constructions the resonators and the drift tube are made of soft iron, the cylinder 9 is omitted and appropriate magnetic. fields to produce the lenses are provided by a cylindrical permanent or electromagnet surrounding the envelope of the tube. Specification 597,511 is referred to.
Patent GB-689630-A (GB)
Title: Improvements in or relating to butterfly valves
Inventor: ROESCH GEORGES HENRY
IPC: F16K1/22
Filed: 1950-01-25
Abstract: 689,630. Butterfly valves. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Jan. 25, 1951 [Jan 25, 1950], No. 2014/50. Class 135. A butterfly valve 1 has a spring piston ring 7 mounted in a groove 6 in the periphery of the valve and adapted to engage a seating 10 which tapers on each side into the larger diameter bore of the rest of the valve casing. The groove 6 is formed on one side by a separate ring 8 secured to one face of the valve 1. A stepped part 9 on the ring 7 and a corresponding recess in the ring 8 limit the outward movement of the ring 7. The valve member 1 is mounted on stub axles 3, 3a and operated by worm gearing 4, 5.
Patent GB-1434541-A (GB)
Title: Combined refrigeration and water heating system
IPC: F25B29/00
Filed: 1973-01-15
Abstract: 1434541 Refrigeration; heating liquids in bulk EXETER REFRIGERATION CO Ltd 11 Feb 1974 [15 Jan 1973] 2024/73 Headings F4H and F4S A combined refrigeration and water heating system for a dairy comprises a bulk milk storage tank; a refrigeration unit having a compressor 5, a pre-condenser 6, a condenser 3 and an evaporator 4 in heat exchange contact with a bulk milk storage tank; a water supply tank 7 within which is disposed the pre-condenser 6, and an electric water heater 14 with a duct 13 for conducting preheated water from the top of the tank 7 to the water heater 14. The electric water heater 14 is heated by an electric immersion heater 15. The water supply tank has a float valve 12 and a warm water outlet 16 in the bottom of the tank. In use of the system, heat derived from the operation of the refrigeration unit is utilized to both preheat water for an electric water heater and to obtain warm water for udder washing purposes. An adjustable pressure reducing valve 8 is included in the refrigeration unit.
Patent GB-1247585-A (GB)
Title: Improvements in or relating to the deposition of layers of inorganic materials on the surfaces of semiconductor bodies
IPC: H01L21/31
Filed: 1969-01-14
Abstract: 1,247,585. Depositing inorganic substances. SIEMENS A.G. 14 Jan., 1969 [15 Jan., 1968], No. 2062/69. Heading C1A. A process for the deposition of a layer of an inorganic material on to the surface of a semiconductor body, contained in a tubular reaction vessel and heated through the wall thereof, from a reaction gas continuously introduced into said vessel, comprises directing fresh reaction gas, entering said vessel at a temperature of at least 100‹ C. below that of said body, radially against a part of the wall of said vessel which is at a temperature above or not more than 50‹ C. below that of said body and thereafter directing the gas to said body at so high a velocity that deposition of the said layer first takes place at the location of said body. The deposited layer may be an insulating protective layer, e.g. of SiO 2 , Si 3 N 4 , or alumina, which may be deposited from reaction gases containing esters. Alternatively, it may be an epitaxially grown layer of a semi-conductor material. The reaction vessel is preferably made of high-purity quartz. The entering reaction gas may conveniently be directed towards the walls of the reaction vessel by an obstacle, e.g. a baffle, interposed in the direct path of the reaction gas to the semiconductor body.
Patent GB-1274971-A (GB)
Title: Moulding process and moulded product
Inventor: KEMP CLIFFORD REGINALD
IPC: B29C70/74
Filed: 1970-01-16
Abstract: 1,274,971. Laminates. MILES REDFERN Ltd. 8 Jan., 1971 [16 Jan., 1970], No. 2137/70. Heading B5N. A method of providing a wear-resistant pad 12 upon a substrate 15 e.g. a carpet having a pile surface 15a comprises the steps of providing a quantity of a thermoplastic pad-forming material 13, in particulate form within an open mould 11, the mould having a shape corresponding to the peripheral shape of the intended pad, heating the mould, e.g. in oven 14, to a degree at least sufficient to form a tacky surface on the material therein, placing the thus formed tacky surface and the substrate in mutual pressure contact, and separating the mould and substrate after cooling of the pad-forming material to leave a shaped pad in position upon and bonded to the substrate. In a preferred embodiment, the mould is vibrated prior to heating. The pile may be of nylon, wool or rayon. The pad-forming material may be admixed with a pigment or wetting agent and may comprise polyethylene, polypropylene, polyvinyl acetate or a copolymer of ethylene with vinyl acetate.
Patent GB-795773-A (GB)
Title: Improvements in or relating to perspiration inhibiting material
Inventor: TELLER W KEDZIE
IPC: A61Q15/00
Filed: 1956-01-23
Abstract: An anti-perspirant stick comprises a soap gel base chosen from the group consisting of sodium stearate-aqueous propylene glycol soap gels or sodium stearate-aqueous alcohol soap gels, and having incorporated as the active ingredient, sodium zirconium lactate. The propertions of the ingredients are such as to depress the ionization of the sodium zirconium lactate below a level at which the zirconium ions will react with the sodium stearate.  The precise proportions may vary but the indicated limits of the primary constituents are: alcohol 17.65 per cent minimum to 75 per cent maximum; water 4 per cent to 14 per cent; sodium stearate 2 per cent to 7 per cent; and sodium zirconium lactate (43.95 per cent solution) 5 per cent to 75 per cent.  The ingredients of the soap gel stick are mixed together and melted and the desired quantity of sodium zirconium lactate solution is added together with deodorant materials such as hexachlorophene, or moisture retention agents such as carbitol and the mixture allowed to set p  in moulds; perfumes may be added if desired just prior to pouring into moulds.
Patent GB-547234-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1941-02-18
Abstract: 547,234. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Feb. 18, 1941, No. 2232. [Class 112] Differential feed.-In a machine in which the work is fed by a feed dog and the sewing-needle, a supplementary feed foot is given a feed motion which may be more or less than the main feed. The needle-bar 19, in a two needle machine, reciprocates in a frame 23 mounted, for oscillation in the line of feed, on a pivot 24. The frame is actuated in unison with the feed dog 34 in known manner. A supplementary feed foot 36 is carried by a rod 66 slidingly mounted in a frame 67 pivoted at 82 upon the needle-bar frame 23. The frame 67 has an extension 85 having a pivotal sliding connection with a bar 88, and the inclination of the bar causes a differential movement of the frame 67 as the frame 23 oscillates. The.bar 88 is carried by a yoke 89 held in a clamp 91 and by altering the inclination of the bar the differential movement can be varied. The presser-foot comprises two feet 55, one for each needle, and between them there is a supplementary foot 58 pivoted at 59 on a part 56, secured to the presser bar and pressed on to the work by a spring 60.
Patent GB-584837-A (GB)
Title: Improvements in or relating to low voltage transformer units
IPC: H01R13/707
Filed: 1945-01-29
Abstract: 584,837. Two-part couplings. PARTRIDGE, WILSON, & CO.. Ltd., and SAWYER, F. G. Jan. 29, 1945, No. 2242. [Class 38 (i)] [Also in Group XXXV] A transformer comprising coils 2 and a core 3 is mounted together with accessory parts on a plate 1, which assembly is held in position by being gripped between projections 17, 17<1> on the cover 15 and backplate 16 respectively. To provide resiliency the cover 15 and backplate 16 may be of rubber, or the tips only of projections 17, 171 may be resilient. The supply is connected to a three pin socket 25 in a wall box 24, Fig. 2, on which the transformer is mounted by inserting into the socket a three pin plug (not shown) mounted behind backplate 16. The supply to the transformer primary from the plug is through leads 14, springloaded. plunger switch 7 operated by a cam 10 on a shaft 9, leads 13 and fuses mounted on an insulating block 5. Other fuses on a block 51 are in the secondary circuit connected to a flexible lead 23. A locking device to prevent the removal of the transformer from the wall box 24 when the switch is " on " is provided by a double-armed member (not shown) on the end of the switch spindle 9 remote from the handle 19, which can enter a hole 28 of similar shape in the wall box when the switch is " off, " but is turned through 90 degrees in the " on " position. A watertight plug and socket coupling is described in which a sleeve abutting against a brass ring let into an extension of the casing surrounding the plug screws on to the socket. The terminals may have rubber caps.