baber/WOPTO huggingface dataset:
Patent GB-625015-A (GB)
Title: An improved straining separator
IPC: B04B1/12
Filed: 1946-01-16
Abstract: A strainer separator, Fig. 1, having a perforated conical wall 1, discharges separated solids continuously through ports 8 in the floor.  The discharge may be controlled by rollers 10 having ridged or toothed surfaces and rotated at a controlled speed by a separate drive, or, by gears from a sleeve 13 driven through a governor-controlled friction clutch 11.  The discharge may be controlled by flap valves 23, Fig. 6, which are positioned by an axially-adjustable ring 27.  Or, the valves may be opened, in turn, once in each revolution of the separator, by contact with an adjustable stationary trip piece.  The rollers 10 may be perforated as shown in Fig. 5 and, in that case, the conical wall may have no perforations.  The perforations in the rollers may be provided by a wire gauze envelope.  The rollers may be washed by, or the material therein treated with, a liquid introduced by a pipe 46.  The materials may be carried round in the strainer by ribs 34, Fig. 1. In a modification, the separator is cruciform in crosssection and the materials are distributed on entry by positively-rotated axially-directed rollers at the re-entrant corners.
Patent GB-436934-A (GB)
Title: Improved level for use in air-craft and for other purposes for indicating inclination from the horizontal plane
IPC: G01C9/36
Filed: 1934-01-16
Abstract: 436,934. Levels. HANSON, A. R., 1, Sawell Terrace, Boulder City, Western Australia. Jan. 16, 1934, No. 1597. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 28, 1934]. [Class 97 (ii)] A level particu larly for use on air craft comprises a circular brass con tainer 2, having the bottom slightly convex upwardly, and a convex glass top 1 clamped between a flange 5 on the container 2 and a threaded bezel 3. The container is filled with transparent liquid through a hole closed by a screw 6 with the exception of a small vacuum space serving as a bubble. Alternatively a hollow glass globule internally coated with luminous paint may be used. The glass top preferably consists of two layers of glass with an intermediate layer of celluloid. Markings, e.g. a circle and two diameters at right angles may be etched on the inner surface of the lower glass layer and the markings filled with luminous paint.
Patent GB-1333163-A (GB)
Title: Apparatus for producing casting moulds
IPC: B22C23/00
Filed: 1971-01-13
Abstract: 1333163 Moulding machines; patterns KARLSTADS MEKANISKA WERKSTAD AB 13 Jan 1971 [31 March 1970] 1624/71 Heading B3F  A casting mould, for a casting having a uniform cross-section along a straight axis, is prepared in an apparatus including a pattern 17 between and spaced from an outer cylinder member 1 and an inner cylinder member 21, the pattern 17 being shorter than the length of the mould to be made and being movable upwardly. When making a mould for cylindrical drums used in paper-making machines the outer cylindrical member 1 on an annular base board 3 (resting on studs 5) is attached at its top and base by stay wires 11 to a central dowel 17 resting on a pin 9. The pattern 17 and the inner cylindrical member 21 depend from a member 15 which is itself attached to a gripping device 13 which moves upwardly along the dowel 7. Firstly, a ring 25 of moulding sand is formed on the base board 3, the pattern 17 is lowered to touch the ring and then tiles 27 are assembled as a ring to form an undercut portion of the casting mould. Sand is rammed by hand rammers into the cavities between the pattern and cylinder members. The pattern is raised as the cylindrical mould is built up. At the top of the mould, the gating is formed by a pattern piece 19.
Patent GB-1467391-A (GB)
Title: Multi-speed transmission hub for bicycles
IPC: B62L5/04
Filed: 1974-02-05
Abstract: 1467391 Change-speed gears SHIMANO INDUSTRIAL CO Ltd 5 Feb 1974 [5 Feb 1973] 01642/74 Heading F2D In a multi-speed, e.g. three-speed, hub for bicycles incorporating a back-pedal brake, the gearing assembly is positioned axially on a fixed shaft 1 between a screw-threaded ball race 13 and a spring 25 abutting an annular stop 102 in a groove in the shaft, and the brake consists of a core 73 and shoe 71 with interengaging parts 712, 731 so that the cone and shoe are removable together from the hub shell 5. The gearing comprises a fixed sun 61 on the shaft, planets 62 in a carrier 63, a ring gear 64, and an axially movable toothed coupling 8. The parts are shown in their high ratio positions, in which a driving member 4 rotates the carrier 63 through the coupling 8, and the ring gear drives the hub shell through pawls 643 and ratchet teeth 53 in a sleeve 51 screwed into the hub shell. When the coupling is displaced partly to the right by means 19, 20 the pawls 643 are retracted by an inclined surface 83 of the coupling and a 1 : 1 drive is transmitted through the driving member 4, coupling 8, carrier 63, pawls 633 and ratchet teeth 54 in a sleeve 52 screwed into the hub shell. Displacement of the coupling fully to the right disengages teeth 84 of the coupling from teeth 632 of the carrier, and the ring gear is driven from the member 4 through the coupling and pawls 643 so that the carrier drives the hub shell at low ratio through the pawls 633. Backpedalling causes an annular edge-cam formation between the driving member 4 and a ring 9 to move the latter and the gear assembly leftwardly to cause cones 635, 711 to expand the brake shoe into engagement with the hub.
Patent GB-935926-A (GB)
Title: Process for the manufacture of polyurethane products
Inventor: TAYLOR JOHN HEYWARD
IPC: C08K5/51
Filed: 1961-01-16
Abstract: In the preparation of flame-retardant polyurethanes from hydroxyl-containing polymeric compounds a reaction product of a phosphorus oxyhalide and an organic polyhydroxy compound is added to the reactants.  The hydroxylcontaining polymeric compounds may be polyesters, polyesteramides or polyethers having at least two hydroxyl groups in the molecule.  Organic di- or poly-isocyanates or mixtures thereof may be used.  The phosphorus oxyhalide may be reacted with alkylene glycols, glycerol, pentaerythritol and tris(hydroxymethyl)phosphine oxide or mixtures thereof.  To obtain cellular products the polyurethanes are prepared in the presence of water and/or a low boiling point liquid such as a halogenated hydrocarbon.  Additional fireproofing compounds such as tris(2-chloroethyl) phosphate and chlorinated paraffin wax may be added.  In the examples a condensate of ethylene oxide and octylcresol is also present.ALSO:In the preparation of flame-retardant polyurethanes from hydroxyl-containing polymeric compounds a reaction product of a phosphorus oxyhalide and an organic polyhydroxy compound is added to the reactants.  The hydroxyl-containing polymeric compounds may be polyesters, polyesteramides or polyethers having at least two hydroxyl groups in the molecule.  Organic di- or poly-isocyanates or mixture thereof may be used.  The phosphorus oxyhalide may be reacted with alkylene glycols, glycerol, pentaerythritol and tris(hydroxymethyl)-phosphine oxide or mixtures thereof.  To obtain cellular products the polyurethanes are prepared in the presence of water and/or a low boiling point liquid such as a halogenated hydrocarbon.  Additional fireproofing compounds such as tris (2-chloroethyl) phosphate and chlorinated paraffin wax may be added.  In the examples a condensate of ethylene oxide and octylcresol is also present.
Patent GB-136012-A (GB)
Title: Improvements in Lamp Shade Tilting Devices.
Inventor: CUBITT ARCHIBALD STANNARD
IPC: F21V21/16
Filed: 1919-01-23
Abstract: 136,012. Cubitt, A. S. Jan. 23, 1919. Supporting.-A lamp-shade-tilting device comprises two members 2, 4 pivotally connected together at 7, the member 2 being secured to the shade-holder 8 and the member 4 engaging with the suspending-cord 11, the friction between the members being such that their relative positions may be adjusted and fixed, and will not be altered by the weight of the fitting. The arrangement, shown in Fig. 1, by which the arm 4 is held between the helices formed by the members 2 may be modified by forming the members 1 and 4 from flat strips of metal, Fig. 2, and replacing the helices by disks 2 having ridges formed on their circumferences and secured by a central screw.
Patent GB-1211346-A (GB)
Title: Liquid fuel injection pumps
Inventor: WARWICKER PETER GRIGGS
IPC: F02M59/10
Filed: 1967-01-13
Abstract: 1,211,346. Fuel injection pumps. BRYCE BERGER Ltd. Jan.5, 1968 [Jan.13, 1967], No.1939/67. Heading F1A. A fuel injection pump plunger 10 is reciprocated on the delivery stroke by a piston 18 subjected to fluid pressure from a source 20 in timed relation to an engine. Supply of fluid takes place through a piston passage 22 and a cylinder port 23, the arrangement being such that the port 23 is closed towards the end of the delivery stroke. To allow return of the piston a passage 24 is opened by a valve 25 connected to the valve 21. To avoid wastage of actuating fluid the stroke of the piston 18 is made variable by shaping the end of the passage 22 which co-operates with the port 23, and coupling the piston for rotational adjustment with the plunger 10.
Patent GB-1292088-A (GB)
Title: Air conditioning and refrigeration unit
Inventor: HINTZE RUDOLF
IPC: F25B3/00
Filed: 1971-01-14
Abstract: 1292088 Reciprocating compressors R HINTZE 14 Jan 1971 [14 Jan 1970] 1968/71 Heading F1N [Also in Division F4] A refrigeration unit which may be used as a vehicle air conditioner comprises a compressor cylinder 5 rotatable by a drive-shaft 6 about a crank-shaft 4 and having a piston 10 disposed therein which is rotatable about a crank pin 11, a tubular condenser 24 and a tubular-evaporator 28 which are co-axially coiled about the crank-shaft. The evaporator is positioned within the condenser and communicates therewith at one end through an expansion device 27, e.g. a capillary, and at the other end is connected by a tube 29, distributer 30 and parts 31 with the compressor cylinder. The coiled evaporator 28 is supported on a rotary bearing tube 8 forming an extension of the compressor by helical fins 32 which suck warmed air from the vehicle interior through an inlet 44 of a double-walled air hose 43 and further helical fins 33 extend between the evaporator and a thermal insulator tube 35 separating the evaporator from the condenser to blow cooled air over the evaporator and out of the unit through the hose 43. The condenser is supported on a rotatable body (25) having fins (26) to act as a blower for passing cooling air over the condenser Fig. 3 (not shown). The compressor cylinder is symmetrically designed with its ends having valve plates 14, 15 and valve covers 16, 17 of the same weight. The piston 10 has a guide 13 halfway along its length housing a sliding block 12 with a bore (not shown) to receive the crank pin 11. The crank shaft 4 is stationary while the tube 8 forming a bearing 9 for the shaft rotates, a rotary seal 34 being formed therebetween.
Patent GB-657415-A (GB)
Title: Rotary sirens
IPC: G10K7/04
Filed: 1948-01-22
Abstract: 657,415. Sirens. RUSSELL, E. S., and SERVICE ELECTRIC CO., Ltd. Jan. 22, 1948, No. 2031. [Classes 13 and 118 (ii)] In order to facilitate signalling, a cover 9 and a valve 13 respectively controlling the air outlet and inlet of a rotary siren 7 are actuated by fluid pressure. In an electrically-driven siren as described in Specification 634,875, the actuating rod 14 for the valve 13 and cover. 9. is raised by a piston 15 when an electromagnet 23 is energized to close a relief valve 22 for the pressure liquid supplied by a centrifugal pump 17 mounted on the rotor shaft 27. The piston rises until spill ports 25 are uncovered and is returned by gravity when the electromagnet is de-energized to allow the relief valve 22 to lift.
Patent GB-1342223-A (GB)
Title: Electronic wrist watches
IPC: G04G5/04
Filed: 1972-01-17
Abstract: 1342223 Electronic watches SUWA SEIKOSHA KK 17 Jan 1972 [6 Feb 1971] 2131/72 Heading G3T An electronic wrist watch comprises a timestandard quartz crystal oscillator, a timeindicating electronic display device 3, frequency dividing circuits driven by the oscillator and deriving operating signals for the display device, and push-button switches 4... 6 for altering the displayed time and for resetting certain of the circuits, the push-buttons being located on the upper or front face of the watch where the display device 3 is situated. The push-button switches may comprise switches 4 for altering the hour, tens of minutes and minute indications, a switch 5 for resetting the dividers and a start-stop switch 6. The display device may be a LED device, a liquid crystal device, or a plasma device and the circuits of the watch may be of the COS/ MOS integrated circuit type. The push-buttons 4... 6 may be locked against accidental operation by mechanical locking means, Fig. 2 (not shown), which may be released by a push-button 7. Alternatively the push-button 7 may operate a switch in series with the switches 4... 6. Figs. 3 to 6 (not shown) illustrate portions of the watch circuits.
Patent GB-978561-A (GB)
Title: Improvements relating to transistors
IPC: H01L29/06
Filed: 1961-01-19
Abstract: 978,561. Transistors. TEXAS INSTRUMENTS Inc. Jan. 19, 1961 [Jan. 20, 1960], No. 2280/61. Heading H1K. A transistor comprises a body of gallium arsenide including a P-type region with a body of tin alloyed to it. A typical device is made by diffusing zinc into an N-type gallium arsenide wafer to form a thin P-type layer, etching to remove the layer except from the upper face, evaporating tin 33 and zinc-gold 34 on an adjacent region of the remainder of the layer 32 (Fig. 2c) and heating to 600-800 C. to form a PN junction between the tin and layer and an ohmic contact between the zinc-gold and the layer by alloying. The tin and zincgold and the immediately adjacent parts of the layer are then masked and the wafer etched to a mesa configuration. A tab is finally soldered to the wafer and wires thermocompression bonded to the tin and zinc-gold. Another type of NPN transistor is made by alloying tin 41, 42 (Fig. 3), and a ring base contact 44 of silver-zinc alloy to a wafer 43 of P-type gallium arsenide.
Patent GB-338439-A (GB)
Title: Method of manufacturing crank shafts or cranks
IPC: B21K1/08
Filed: 1930-01-24
Abstract: 338,439. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Nierhaus, F. W.). March 15, 1929, [Convention date]. Shafts.-Cranks, crank shafts &c. are formed from metal blocks which before being worked to crank &c. form are freed from piping and segregation by removing the core 1 by boring or piercing, the block 2 being then forged to ring form 3, flattened at 5 and divided at 4, resulting in a crank wherein there is no sharp bending of, the fibres tending to weaken the metal. In a modification shown in Fig. 7, a bored ingot is expanded to tubular formation 8 with a centre collar 7, slit longitudinally by radial cuts into a number of sections and each section bent to crank form by bending down the ends as shown by the arrows. In another modification the bored ingot is expanded and worked to a flat ring, cut across and straightened to form a flat bar and bent and further worked to multiple throw crank form.
Patent GB-788580-A (GB)
Title: Improvements in the preservation of natural rubber latex
Inventor: TOWNSEND HENRY BAILEY
IPC: C08C1/06
Filed: 1956-01-26
Abstract: Natural rubber latex is preserved, particularly from bacterial and enzyme degradation, by the addition of one or more zinc dialkyl dithiocarbamate(s) and one or more anionic and/or non-ionic surface active agent(s), and if desired an amount of ammonia less than that required to preserve the latex.  Zinc dimethyl dithiocarbamate is preferably used.  The surface active agent may be a soap such as ammonium oleate or other reaction product of a fatty acid and an alkali, or sodium salts of sulphate monoesters of a mixture of higher fatty acids consisting chiefly of lauryl and myristyl derivatives, or an aqueous solution of C-cetyl betaine.
Patent GB-1101214-A (GB)
Title: Photographic developing apparatus
Inventor: MULVANY RICHARD BURKE
IPC: G03D5/00
Filed: 1966-01-20
Abstract: 1,101,214. Photographic developing apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 20, 1966 [Feb. 3, 1965; March 17, 1965], No. 2600/66. Heading G2A. Apparatus 18 for developing photographic film by passing ammonia under pressure across film surface 17 comprises a seal plate 19 having a diffuser plate 16 placed in a cavity therein and a closure platen 22 which presses an inserted film tightly against the seal plate 19. Ammonia under pressure is fed by a valve 32 to a hole 28 in the base of the plate 19 and from there it flows as indicated, forcing the trapped air before it into a reservoir 15. In another embodiment, Figs. 1, 2 (not shown), the trapped air is forced into a reservoir (11) between a metal seal (2) and an elastomer seal (3). In a further embodiment, Figs. 5-7 (not shown), a three way solenoid valve (110) controls the feeding of ammonia from a store to a development cavity (114), and after development, to exhaust the ammonia out of the development platen into an absorber (115). A fluid other than ammonia may be used.
Patent GB-877770-A (GB)
Title: Improvements in air line lubricators
IPC: F16N7/34
Filed: 1960-01-25
Abstract: 877,770. Lubricators. JAMES, G. E., LANGDON, A. B., and DARBY, V. E. Jan. 25, 1960, No. 2670/60. Class 12 (3). An air line lubricator comprises a lubricant reservoir 2 having a duct 10 therethrough, a tangential air inlet 7 to a jacket 1 enclosing the reservoir and a balance hole 12 and a lubricant orifice 13 connecting the reservoir to the interior of duct and jacket respectively. A disc 14 forms a dirt trap with the lower end of the reservoir 2, the dirt being removed through an outlet 17. The disc 14 acts to reflect pressure-waves in a pulsating air stream through the duct 10 to the outlet 11, causing high-pressure zones in the vicinity of the hole 12 and ejection of grease through the orifice 13, where it is mixed with the turbulent air above the disc 14. A non-pulsating air stream may also be used if the disc 14 is mounted close to the reservoir. The disc 14 may be omitted so that the device acts purely as a lubricator and not as a filter also. For use with oil, a jet 18, Fig. 4, is fitted and an extension tube 23 from the orifice 12 to permit the device to be inverted in use.
Patent GB-841178-A (GB)
Title: Strip accumulator
IPC: B21C49/00
Filed: 1958-01-27
Abstract: 841,178. Making processed strip. UNITED STATES STEEL CORPORATION. Jan. 27, 1958 [June 18, 1957], No. 2710/58. Class 83 (2). [Also in Groups XVI and XXX] An accumulator for storing strip entering a storage section at one end thereof and emerging at an opposite end comprises means for moving strip carriers successively from the entry end to the exit end of the storage section, each carrier having a horizontal arm extending over the storage section during said movement, and means for looping strip at the entry end of said storage section over the arms of successive carriers, the loops being removed from the carrier arms successively at the exit end of the storage section when the strip emerges therefrom. To keep a strip processing line in continuous operation, e.g. while two strips are joined as by welding, the strip is passed through a storage pit 68, while looped over horizontal arms 38 attached to carriers 24 which move on a closed track 4, the length 4a- 4c of the track being located over the pit. The carriers 24 are moved by a power chain 40 supported from an endless track 6 and having equally-spaced lugs 46, each of which engages a dog 28 on a carrier. A bending roller 70 orbits about a shaft 72 to loop the strip S successively over the arms 38 as the strip is fed to the pit by rolls 2. The drive motor 78 for the roller 70 being synchronized with the drive motor for the power chain 40 and the drive motor for the rolls 2. After receiving a loop of strip each carrier 24 moves on a horizontal portion of track to a point 46 where it disengages from the power chain and drifts downhill to the outlet end of the pit 68 where it is located under pinch rolls 90 which receive the strip vertically from the loop and pass it to the strip processing line. As each loop is exhausted the change in inclination of the strip moves a frame 92 to the left, thus closing a switch 98 to energize a motor which operates a carrier release device 54 (Fig. 5, not shown), which spaces the carriers and moves the next carrier under the rolls 90 for discharge of its loop of strip. The empty carriers are returned to the entry end of the storage pit by re-engagement with the power chain 40. Before reaching the entry end once again, each carrier 24 first disengages from the power chain on a downward slope of the track 4 and then is reengaged for further reception of strip. The carriers are correctly spaced for re-engagement with the power chain by the release device 56. Safety devices are provided, i.e. switches to stop the drive motors when the storage section is full and further switches serving an indicator light to warn the operator of the strip-processing line when the storage section is empty. The strip accumulator may be located before or after a processing line.
Patent GB-951894-A (GB)
Title: Improvements in or relating to fluid control taps
Inventor: STEVENS EDWIN ARTHUR
IPC: F16K31/58
Filed: 1962-01-24
Abstract: 951,894. Valves; hose connections. F. H. BOURNER & CO. (ENGINEERS) Ltd., and E. A. STEVENS. Jan. 24, 1963 [Jan. 24, 1962], No. 2745/62. Headings F2G and F2V. A tap of the kind which is opened and closed by the rotation of an internally threaded axially movable sleeve 16 engaged upon an externally threaded fixed part 13 of the tap body, is characterized in that the sleeve 16 is rotated by a manual operating member 29 or a part 19, 20 fixed thereto, the sleeve being axially slidably engaged in this member or part and relative rotation between the two being prevented, and the manual operating member or part 19, 20 thereof being rotatably mounted on the externally threaded fixed part 13 of the tap. As shown, the manual operating member comprises outer and inner sleeve-like parts 24, 19 respectively which are secured together by a screw thread at 46, and having polygonally faceted inner and outer circumferences respectively which fit together. The inner circumference of the inner sleeve part 19 is similarly faceted and engages a correspondingly faceted surface of the internally threaded sleeve 16 so that this sleeve is axially slidable within the part 19 and is rotated thereby. The axially movable threaded sleeve 16 carries a hub 37 located by radial ribs 38 thereof in a reduced portion 17 of the sleeve. A valve closure member or washer 34 seating on the end of the fixed part 13 of the tap body is located by a stem 35 in a bore of the hub 37. This bore is provided with a part which snaps into a groove 36 of the stem 35. A loose valve member 41 having a stem bearing on the washer 34 seals on a seat 42 when the sleeve containing the washer 34 is removed. The reduced portion 17 of the sleeve is engaged by a hose coupling 43 carrying hinged loops 46 which can be hooked over handgrip ribs on the manual operating member. Specification 928,280 is referred to.
Patent GB-171638-A (GB)
Title: Improved stop rod finger for fast reed weaving loom
IPC: D03D51/00
Filed: 1921-01-21
Abstract: 171,638. Burns, E. Jan. 21, 1921. Stop-motions, shuttle.-A leather strip A is held in position by flanges B<1>, B<2> on the tapering blade of the stop-rod finger B in a fast-reed loom, to take the blow from the swell. The stop-rod finger, which is of malleable iron, is secured to the stop-rod by a set-screw.