baber/WOPTO huggingface dataset:
Patent GB-1157895-A (GB)
Title: Apparatus for the Injection Moulding of Footwear
IPC: B29C45/03
Filed: 1966-07-21
Abstract: 1,157,895. Injection moulding footwear. BRITISH BATA SHOE CO. Ltd. 21 July, 1966 [22 July, 1965], No. 32914/66. Heading B5A. In an apparatus for injection moulding footwear an injection cylinder 22 is pivoted during a mould closing operation so that it remains in alignment with a wooden or metal last 10, an injection nozzle 34 being located in a port 38 formed between mould parts 12, 14 and communicating with a mould cavity 36. In the embodiment of Figs. 1, 2 two soles are moulded on to uppers on two inverted lasts 10 located either side of a central stationary mould part part 12 shaped to the contour of the sole, side plates 14, 16 closing with the side of part 12, and two vertically reciprocable mould parts 8 closing the top of each cavity 36. The lasts 10 and plates 14, 16 are moved towards the part 12, the plates 14, 16 contacting the nozzle 34 of an injection unit and pivoting it horizontally until each plate meets the part 12, opposed grooves 40, 41 thereon mating to form the port 38. Injection is stopped when a pressure limit switch 48 or an overflow limit switch 50 is actuated, the cylinder returning to its initial position under spring pressure when the mould parts move apart to facilitate removal of a shoe, the nozzle end of the cylinder being supported by an extension 44 and wheel 46 on a runway 42. In a modification, Figs. 3-5 (not shown), there is only one vertically reciprocable last 10 the injection cylinder being vertically pivoted about an axis (78) prior to injection by a support (82) which is connected to a last-support beam (70) and supports a wheel (84) connected to the nozzle end of the cylinder. The top mould plate (68) is only movable vertically when pressure of the material in the cavity exceeds a certain value, a cut-out limit switch (44) then being operable to stop injection. Side mould plates (74), (76) close to the side of the last around the nozzle (34) which seats in a port (38) formed by mating grooves (75), (77). In both embodiments the injection cylinder 22 is heated by heaters 30, the temperature of which is controlled and indicated by a regulator 32, the nozzle being cooled by fins 35 while a plasticizing screw 24 feeds material to the cavity 36. The mould parts may be moved together either hydraulically, pneumatically or mechanically and the screw is driven by a motor 26. The invention may also be used for moulding soles for subsequent attachment to uppers.
Patent GB-1519773-A (GB)
Title: Refrigerant compressors
IPC: F04B39/02
Filed: 1975-10-21
Abstract: 1519773 Dynamo electric machines SEALED MOTOR CONSTRUCTION CO Ltd 21 Oct 1975 [25 July 1974 23 Oct 1974] 32973/74 and 45953/74 Heading H2A A refrigerant compressor comprises a sealed housing 10 containing a refrigerant pump 16 and a planar air gap induction motor 18 where rotor 44, 46, 48 is drivably coupled to the pump. The motor rotor may be of the Ferraris disc or squirrel cage type and may be mounted below or, as shown, above the stator 50, 52. The rotor drives the pump piston 24 through a Scotch yoke connection. The lower half of the housing forms a reservoir for lubricating oil. This oil may be drawn up inside a hollow shaft of the rotor and then fed through to a helical groove on the exterior of the shaft at the level of bearing 40. Alternatively, as shown, the low pressure gas may be passed through a conduit 56, oil being drawn into the conduit by the Venturi effect at 60, droplets of oil then dropping from the exit 58 of the conduit 56 on to the Scotch yoke.
Patent GB-768003-A (GB)
Title: Improvements in high vacuum pumps
IPC: H01J41/16
Filed: 1954-11-17
Abstract: 768,003. High vacuum pumps. WIS CONSIN ALUMNI RESEARCH FOUN DATION. Nov. 17, 1954 [Nov. 23, 1953] No. 33276/54. Class, 8(1) [Also in Group XL(a)] In a high vacuum pump comprising a chamber 10 connected to a system to be evacuated and containing a crucible which is intermittently or continuously fed with gettering material 16. e.g. titanium wire, the chamber contains gas ionizing means which comprises a cathode 21 and two spaced concentric anodes 22, 23 electrically connected and of grid like construction. The potentials on the cathode, anodes and chamber walls are arranged to cause electrons to oscillate between the cathode and chamber walls. A continuous or oscillating magnetic field may be used to increase the electron path. Ionized gas is driven into the walls and covered by successive layers of getter material. In a modification the getter material is vaporized by engagement with a post heated by electron bombardment. The getter wire may be heated by periodic intense pulses of electrons. The chamber is first evacuated by a fore pump connected through a valve 15 and subsequently a primer getter charge may be vaporized. The Specification gives details of a wire feeding device enclosed within the chamber and actuated by a rotary shaft on the exterior. Mention is also made of a further feeding device operated by expansion and contraction of a steel strip. The getter wire may be supported on another wire which is bound from one reel on to another. The wire feeding device may be shielded to prevent condensation of the getter thereon and the wire may be heated to straighten it.
Patent GB-211273-A (GB)
Title: Improvements in or relating to excavating machines
IPC: E02F3/348
Filed: 1922-12-06
Abstract: 211,273. Pettman, C. W. Dec. 6, 1922. Scoop-arm machines.-An excavator comprises a digging bucket fixed to the end of an arm and adapted to be moved over the face being excavated and capable of discharging its load to a fixed point in the machine, about which point a discharge conveyer is adapted to be swung laterally independently of the rest of the machine. In the form shown, a platform 9 mounted on a tractor carries a steam generator 10 and an engine 11 driving a shaft 12; this shaft drives one or both sides of the tractor through gearing 13, 14 and clutches, rotates the platform on the tractor through gearing 13, 18, clutch 19 and gearing 20 - - 23, and drives hollow segmental drums 29 in opposite directions about their shafts 33 through gearing 24, 25, clutches and pinions engaging toothed segments 28. Channel-iron arms 37 carrying excavating buckets 38 slidably engage the sides of each drum 29 through bearing rollers 41 and are moved radially of the drum by the piston rod 40, Fig. 5, of a steam cylinder 31 carried by a cross pin 30 within the drum, oil dash-pots 32 controlling the motion; steam is passed to the cylinder through a passage 35 in one end of the drum shaft 33, its distribution being controlled by a valve manually-operated by a spindle 35<a> passing through the other end of the shaft 33. Each bucket 38 has a closure 48 normally held by a catch 49 with a counterweight 50 and finger 51; at the top of the stroke of the bucket, the finger 51 engages a stop 52 and releases the catch, the bucket then discharging to a horizontally and vertically pivoted conveyer 45 through a shoot 43 and a horse-shoe shoot 44 carried by the conveyer frame. The conveyer is driven by a motor 45<a> and serves both buckets 38. As a bucket 38 reaches the top of its stroke, an eccentric shaft 33 acts through linkage and a bell-crank lever 55 to move the link motion of the engine 11 to mid position, so stopping the engine until the operator completes the reversal of the latter. Any number of digging buckets may be provided.
Patent GB-467228-A (GB)
Title: Improvements in or relating to the production of glycol derivatives
IPC: C08G65/28
Filed: 1935-12-03
Abstract: Glycol ethers are produced by reacting an olefine oxide such as ethylene oxide with a monohydric aliphatic alcohol in the presence of a tertiary amine or of a primary or secondary amine (which under the conditions is converted into a tertiary amine) or a hydroxy amine such as triethanolamine.  The reaction is preferably effected under such temperature and pressure as to maintain the reactants in the liquid phase.  Examples describe the production of the monoethyl ether of ethylene glycol from ethylene oxide and ethyl alcohol in the presence of triamylamine and trimethylamine respectively.  According to the Provisional Specification the olefine oxide may be reacted with a phenol.  Reference has been directed by the Comptroller to Specification 430,013.
Patent GB-211612-A (GB)
Title: Apparatus for improving the performance of magnetos
IPC: H01F7/02
Filed: 1922-12-08
Abstract: 211,612. Boaler, R. C. J. Dec. 8, 1922. Magneto-electric machines; regulation of machines by auxiliary detachable field-magnets; cores; yokes; magnets.-To strengthen the field of an ignition magneto when starting an engine, or to control a motor or dynamo by varying the strength of the field, an auxiliary magnet is brought into co-operation with the field-magnet of the machine. The yoke A is shaped to enable it to be passed over the magneto &c. When an electromagnet is used, the excitation of its coils B, B<1>, Fig. 1, may be controlled by resistances. When a permanent magnet is used, it is adapted to be moved into and out of proximity to the fieldmagnets, and for manual operation a handle F, Fig. 2, is provided. The keeper G is arranged to slide up to stops H, H<1> when the magnet is placed over a magneto.
Patent GB-752646-A (GB)
Title: Improvements in or relating to fluidtight casings for cameras
IPC: G03B17/08
Filed: 1954-11-19
Abstract: 752,646. Photographic cameras. JAYET, D. L. Nov. 19, 1954 [Nov. 21, 1953], No. 33522/54. Class 98 (1). A fluid-tight casing for a camera has convex walls 1, 2 and 3, a convex base 5, and a convex cover 6 held down by means of a bar 13 connected to cylinders 11, 12, the piston rods 18 of which are pivoted to the casing at 19 and urge the cylinders 11, 12 and bar 13 against the cover 6 by means of springs (not shown), fluid-tight joints being provided in the casing through which pass rods for controlling the camera adjustments. The bar 13 is provided with a handle 14. The view finder comprises a back sight 24 in the form of a small sphere and two front apertures 22, 23 in a transparent plate 21. The line 24-22 is parallel to the optical axis while line 24-23 converges towards that axis and is used for close objects. The surface of the plate 21 defines the field of view of the objective. The diaphragm control rod (Fig. 3) comprises two threads 28, 29 of opposite pitches. Thread 28 works in a nut 32 secured to the case, while thread 29 engages a rack 30 on guide 31, the rack controlling a wheel 26 which is connected to the camera diaphragm. The stuffing box comprises a screw cap 34 and a clamping ring 36 which presses against the packing material 37. A scale on bar 38 indicates the position of the control knob 27. The focusing rod 39 is of similar construction and has a knob 40 and scale 41 (Fig. 1). The film wind rod 42 is provided with a crank 43 and winding handle 44 and also with baffles 50 (Fig. 4) where it passes through the material 47 in the stuffing box. The transparent covers for the objective window 51 and the film wind window (not shown) are clamped with fluid-tight packing material between them and the case. The shutter is released by lever 63 against the action of spring 65.
Patent GB-845111-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: BURGESS PETER JOHN
IPC: H01L23/48
Filed: 1956-11-02
Abstract: 845,111. Welding by pressure. GENERAL ELECTRIC CO. Ltd. Oct. 31, 1957 [Nov. 2, 1956], No. 33567/56. Class 83 (4). [Also in Group XXXVI] In making a semi-conductor device of the junction type an electrode is attached to the junction element by sliding the surface of the electrode relatively to the surface of the element, one of which surfaces is of indium or like soft metal, to provide a clean surface on the indium &c. and pressing the electrode and element together to effect bonding. In an embodiment the rectifying element is formed by evaporating &c. a layer of gold on a slice of single crystal N-type germanium, placing indium thereupon and heating to produce a P-N junction and form a bead consisting mainly of indium. The other surface of the germanium is soldered to a copper block electrode during the heating. A further copper block electrode to be attached to the bead is coated with indium on which a flat surface is formed by slicing or turning and a flat surface is similarly formed on the bead. One or both of the indium surfaces may be convex. One of the blocks 2 is held in a collet 1 fixed in the base of a tube 3 and the other block 6 is held in piston 5 slidable in the tube and carrying projections 12 which engage ball bearings on the ends of a cross member 9 on a shaft 8 rotatable by a drive 11. With the two indium surfaces in contact the piston is rotated to slide the surfaces relatively and the weight of the piston, e.g. 3 pounds for 0.5 square inch diameter indium surfaces, provides the axial force. The indium bead on the germanium element may be replaced by indium-gallium alloy and the further copper block need not be provided with an indium coating but may be cleaned and directly bonded. According to the Provisional Specification the parts may be mounted in a lathe for pressing and sliding, and a silicon element having a bead of tin may be employed. Specifications 806,596 and 845,112 are referred to.
Patent GB-618913-A (GB)
Title: Improvements in or relating to apparatus for preventing the accumulation of ice on asurface
IPC: B64D15/16
Filed: 1946-11-12
Abstract: 618,913. Compound sheet materials. GOODRICH CO., B. F. Nov. 12, 1946, No. 33576. Convention date, Nov. 13, 1945. [Class 140] [Also in Group XXXIII] An elastic sheet material for an inflatable aircraft de-icing shoe incorporates paral lel sinuous warp threads 24 which are straightened by the inflation of the shoe, thus distorting the material to promote the breaking up and detachment of ice. A few widely-spaced wefts, or weakwefts arranged to break when the shoe is in use may be incorporated. In the construction shown the inflating tubes 22, 23, and the threads 24 are adhesively secured to a sheet of rubber 15, then covered by a second rubber sheet 16, and the whole united by vulcanizing. The ends of the threads are folded over marginal beads 25. The sheets 15, 16 maybe of natural or synthetic rubber, and the threads 24 of natural or synthetic fibre, or of glass, metal or asbestos.
Patent GB-1280343-A (GB)
Title: Improvements in or relating to casting of heavy steel blooms by bottom pouring into moulds
Inventor: BAU PAUL
IPC: B22D9/00
Filed: 1969-07-03
Abstract: 1280343 Casting apparatus P BAU and M SORNBERGER 3 July 1969 [3 July 1968] 33640/69 Heading B3F In a bottom-pouring casting apparatus, the trumpet 3 and runner 4 are made from bricks whose main ingredients are alumina and silica, the alumina content being 40% or more. It is preferred that the said bricks are made of sillimanite and have a thermal conductivity of more than 0À9 Kcal./m.h.‹ C. at 1000‹ C. The ladle 2 has a ring main 18 for supplying an inert gas to the air gap 16 between the outlet nozzle 15 of the ladle and the top of the trumpet 17. In operation, the molten steel flowing through the runner system is absorbed into the surface of the bricks and solidifies therein forming a steel skin which protects the bricks.
Patent GB-203969-A (GB)
Title: Adhesive and processes of producing same
IPC: C09J189/00
Filed: 1922-12-11
Abstract: Soya beans or the seeds of other leguminous plants are soaked in water to produce a pulpy mass which is ground, boiled, and filtered. The filtrate is treated as by centrifuging to extract oil and is then curdled.  The curd is preferably washed with sodium-arsenate solution to remove acid and is finally dried and ground.  The product may be mixed with materials such as hydrated lime, sodium fluoride, and water to produce an adhesive; it may also be used as a base for sizes, calcimines, and paints.  The step of filtering the boiled pulp may be omitted.
Patent GB-815134-A (GB)
Title: A visual aid for vehicle drivers
IPC: B60R1/00
Filed: 1956-11-06
Abstract: 815,134. Observation devices for vehicles. SOC. CLACAUTO. Nov. 6, 1956 [Jan. 18, 1956], No. 33847/56. Class 103(2) A device for viewing the zone 1 in front of a vehicle comprises a mirror 3 mounted under a sun-visor outside the windshield and a mirror 5 mounted on the vehicle dashboard. The mirror 3 may be disposed inside the driving compartment at the upper edge of the windshield or substantially above the driver's head and supported from the roof. The mirrors may be plane or curved, concave or convex, and formed in one piece or constituted by a plurality of plane reflectors arranged on one or several supports, which may be rotatable.
Patent GB-822059-A (GB)
Title: Method of treating articles of aluminium or aluminium alloy for producing surfaces with a mirror-like lustre
IPC: C22F1/047
Filed: 1956-11-06
Abstract: Aluminium and aluminium alloys are treated, prior to a polishing and brightening treatment, to re-crystallization at a temperature above that of homogenization and preferably at a temperature 10-30 degrees below the solids.  The articles may be in the cast condition or may have been plastically deformed.  The treatment may be carried out during another process, e.g. when solution-heating before age hardening, the solution heating temperature may be increased to 600 DEG C and maintained for 8-10 hours.  It is stated that the reflection of a polished surface after the treatment is considerably higher than that obtained without the treatment, even with alloys containing 0.029% iron.
Patent GB-778614-A (GB)
Title: Improvements in or relating to apparatus for manufacturing reinforced tubular or flexible tubular articles
IPC: B29C48/09
Filed: 1954-11-23
Abstract: 778,614. Extruding reinforced plastic tubes &c. KRAUSS-MAFFEI AKT.-GES. Nov. 23, 1954 [Nov. 24, 1953; Oct. 26, 1954], No. 33910/54. Class 87(2). Apparatus for making reinforced plastic tubes comprises an annular extension nozzle in which an intermediate space is enclosed by a rotatable member having a supply bore with which is associated a spool carrying the reinforcement, the arrangement being such that with the rotation of the rotatable member the reinforcement is continuously embedded in the wall of the flexible tube as it is being extruded. Material, e.g. polyvinyl chloride, is forced from a screw press through a perforated plate 1 and is extruded between a core 5 carried by the plate and successive wall portions 3, 4. The ends of the wall portions are stepped where they meet to form between them an annular groove in which a member 8 can rotate, as driven through a pin 11 from a spool carrier 10. A textile or metal thread 12 is fed through a radial hole in the member and the gap between the wall portions 3, 4 into the extrusion space, where it becomes embedded in and carried along by, the material being extruded and, due to the rotation of the-member 8, is formed into a helix. The wire or other thread is-carried on a spool 9 and its rate of feeding may be regulated by braking the spool more or less by a wing nut 14 engaging a coil spring which presses against the bottom flange of the spool. The spool carrier 10 is pulley shaped to enable it to be belt driven. The member 8 may be more elaborately shaped with grooves which fit over shoulders on the wall portions 3, 4 and limit their movement away from each other, so controlling the gap between them. Ribs may be provided on the part of the core 5 where the wire enters, to limit the depth to which it becomes embedded. The wire is preferably fed tangentially to the core. The walls may be subdivided to provide a plurality of gaps, each with an associated turntable member, by which means a multi-helical reinforcement may be formed ; if desired the turntables may rotate in opposite directions to give oppositely wound helices. The lower wall portion 4 is held against rotation by screws, as shown, or by an arm extending upwards from the bottom frame.
Patent GB-521642-A (GB)
Title: Improvements in or relating to apparatus for use in weighing materials
IPC: G01G13/00
Filed: 1938-11-22
Abstract: 521,642. Automatic-feed weighers. THOMAS, C. W., and RUDDICK, H. G. Nov. 22, 1938, No. 33934. [Class 143] In an automatic weighing apparatus wherein the material is fed to the weigh pan 35 by an oscillating tray 3 the oscillations of the tray are effected from a continuously rotating eccentric shaft 13 through a rockable link motion 11 having one pivot 8 connected to the tray and another pivot 17 slidable along the link 10 and carried by a cam-controlled arm 16, the arrangement being such that the tray is oscillated when the pivots 8, 17 are out of alignment, but is at rest when the pivots are coaxial, at which time the link rocks idly to and fro. As shown, two trays 3, 4 are provided, both being similarly oscillated from the eccentric shaft 13, the two movable pivots 17 being controlled respectively by cams 20, 24 on a shaft 21 intermittently rotated as described below in order to move the pivots 17 into and out of line with the pivots 8 and thereby stop and start the oscillating movements of the trays. In operation, the material introduced into a hopper 26, Fig. 1, passes to the weigh pan 35 along the oscillating trays 3, 4, the lower tray being supplied from the upper tray by way of an adjustable shoot 28 projecting through the base of the upper tray. As the weigh hopper falls, electric contacts 50, 49 are successively closed and thereby cause the energization of electromagnets 41, 46, Fig. 2, permitting the temporary engagement of clutches 39, 43 in order to impart angular movements to the cam shaft 21 and to a shaft 42. The oscillations of the trays 3, 4, and consequently the feeds therefrom are thus successively arrested and a cam 47, Fig. 1, on the shaft 42 controls the discharge from the weigh pan. Specification 521,686 is referred to.
Patent GB-864958-A (GB)
Title: A cover for motor vehicles
IPC: B60J11/00
Filed: 1958-10-24
Abstract: 864,958. Portable shelters for cars. ROWLANDS, T. W. Sept. 15, 1959 [Oct. 24, 1958], No. 34028/58. Class 20(1) A portable shelter for a car comprises a wood, metal or synthetic resin cover having three sides 12 and a roof 11 which can be rolled over the bonnet of a car by means of wheels 15. A canvas sheet 17 secured to the open end of the cover and supported by a hinged frame 18 surrounds the body of the car.
Patent GB-429616-A (GB)
Title: Improved packing for fractionating columns
IPC: B01J19/30
Filed: 1933-12-04
Abstract: <PICT:0429616/III/1> In the manufacture of porous silicon carbide for use as a packing in fractionating columns, a mixture containing a small amount of sawdust with as much as 97,5 per cent of amorphous silicon carbide known as "fire sand" is packed around a graphite core in an electric furnace.  Around this layer is packed the usual mixture of coke, sand, sawdust and salt, and the charge is raised to a temperature approaching 2000 C.  Crystals of large size are formed about the core, and may be crushed to pieces 3 having dimensions of from 1 to 3 inches for use in stills.  In an alternative method, ordinary silicon carbide reduced to the size of grit is moistened with a binder, such as the residue obtained by evaporating sulphite cellulose lye, and moulded into spherical or other forms.  The latter are heated in a sand-carbon mixture or in a reducing atmosphere to temperatures of 2000--2600 DEG  C., and recrystallization of the silicon carbide is effected with the formation of large crystals. Specifications 366,605 and 393,283 are referred to.
Patent GB-452856-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J19/44
Filed: 1934-11-27
Abstract: Pure magnesium oxide in admixture with pure beryllium oxide in amounts up to 40 per cent is heated to sintering temperature to form an insulating material having a low dielectric loss and suitable for use in short-wave apparatus and high-frequency condensers.  The mixture of oxides may be moulded before sintering and may be worked by boring, sawing, &c. after being sintered.