baber/WOPTO huggingface dataset:
Patent GB-1524768-A (GB)
Title: Timming signal generating circuits
IPC: H03K5/05
Filed: 1977-03-29
Abstract: 1524768 MOS monostable circuit NIPPON ELECTRIC CO Ltd 29 March 1977 [31 March 1976] 13196/77 Heading H3T In a monostable circuit. Fig. 1, a FET Q3 has a capacitor CF between its gate and source, and an input signal # connected to its drain, means Q1 for applying a precharge voltage to the gate, respective means Q2, Q4 for discharging nodes 1 and 2 and a delay circuit 30 connected as shown. Operation: -# is normally low, and complementary signal #. enables Q1 to charge node 1 thus enabling Q3 when # goes High, #. goes Low, turning off Q 1 and allowing 1 to float. As Q3 is kept ON by the stored charge at 1, Node 2 follows # High and forces Node 1 higher by bootstrapping through CF. After the predetermined delay of 30, Node 3 goes High, enabling Q2 and Q4. Then Node I discharges through Q2, Q3 is turned OFF, Node 2 discharges through Q4 and becomes Low, and Node 3 follows after the predetermined delay, turning off Q2, Q4. Thus the duration of an output pulse at OUT is determined by the delay network 30, which may comprise a series of inverter stages (Q5-Q10, Fig. 3, not shown) gated by # and #. The circuit may be used (Fig. 5, not shown) to generator timing waveforms for driving memory circuits and is said to have less propagation delay from a prior art arrangement (Fig. 7, not shown).
Patent GB-132296-A (GB)
IPC: B64C25/00
Abstract: 132,296. Page, F. H. June 17, 1918. Land - wheels and skids; floats, arrangement of. - Landing-gear for aircraft comprises separately - mounted wheels partly received in recesses in the wings and carried on axles elastically connected to the wing spars so as to permit movement in all directions. One or more wheels may also be mounted in recesses in the fuselage. The wheels may be constructed to serve as floats. Figs. 1 and 2 show a biplane having wheels 9 arranged at either side of the body in the lower wings 2, the wheel axle being connected by rubber thongs to brackets 6 connected to the wing spars 4, 5. A fairing 12 may be provided over the wheel. Auxiliary wheels or skids may be provided at the wing- tips, and wheels 13, 14 mav be mounted in recesses in the fuselage.
Patent GB-132313-A (GB)
IPC: F03B13/26
Abstract: 132,313. Liversedge, A. J. Aug. 12, 1918. Tidal energy, utilizing.-Apparatus for utilizing tidal energy is so arranged that a part of the energy drives an electric generator and part is utilized to pump water to a high-level reservoir G for use when the tide does not serve directly. The pumps are actuated by a separate turbine or from the shaft of the primary turbine B, and the water from the reservoir G may be allowed to act on the primary turbine, on a wheel H on the shaft of the primary turbine. or on a separate turbine E, the waste water from the turbine E passing into the main reservoir.
Patent GB-1388831-A (GB)
Title: Spraying apparatus
IPC: B05B13/04
Filed: 1971-05-05
Abstract: 1388831 Spray producers; coating apparatus TORVALE HOLDINGS Ltd 4 May 1972 [5 May 1971] 13284/71 Headings B2F and B2L In a spraying apparatus in which a spraying head 19, Fig. 3, is reciprocable transversely of a conveyor 10 by a fluid operated piston and cylinder device 16, the movement and spraying is controlled by a control unit positioned remotely therefrom. The control unit comprises a control cylinder 26, Fig. 4, connected in parallel with the cylinder of the device 16 and whose piston rod 27 carries a trip 28 (on wheels 29) which actuates micro switches 32 33, which start and stop the spraying, and also limit switches (only one of which 31 is shown) controlling the extent of travel of the spray head 19. The control cylinder 26 is actuated by a microswitch 23 operated by an upwardly spring biased arm 21 which carries a wheel 20 actuated by an article on the conveyor 10. Some or all of the switches of the control unit are adjustable longitudinally of the path of the trip 28.
Patent GB-983993-A (GB)
Title: Apparatus for transforming a disorderly mass of articles to an ordered array
IPC: B65G47/68
Filed: 1962-04-06
Abstract: 983,993. Endless conveyers. BARRY-WEHMILLER MACHINERY CO. April 6, 1962 [Aug. 28, 1961], No. 13294/62. Heading B8A. A disorderly mass of articles A (Fig. 6) carried on a supply conveyer 10 is transferred to a delivery conveyer 11 in single file by frames 15, 16 (Fig. 1) carrying pivoted bars 23, 40 loaded towards each other by counterweights 29 (Fig. 4). The bars 23, 40 have intermediate bends 27, 44, form a convergent passageway between the conveyers 10, 11 and perform a kneading action on the articles under the influence of their counterweights 29 about pivots 25, 42. An electrical vibrator 60 may be mounted on the frame 15 to augment the kneading action.
Patent GB-442494-A (GB)
Title: Process of producing thickened mineral oil products
IPC: C10L1/00
Filed: 1934-05-02
Abstract: Mineral oils are thickened and converted into preparations of a gel-like, unguentous or pulverulent consistency, by the addition of natural or artificial latex preferably added in an emulsified state, for example, as prepared by emulsification with mineral oil.  The oil to be treated may be petroleum, rock oil, brown tar oil, block coal tar oil and gas oil.  In an example, a mixture of soap, latex and gas oil is emulsified in a mortar, and this emulsion is added to gas oil petroleum jelly at a raised temperature, producing a thick mass capable of being drawn into long threads.  The process may be combined with that described in Specification 416,927, according to which similar effects are obtained by the addition of natural or artificial beeswax, or their constituents, in the presence of soap preferably with organic solvents such as alcohol.  In this modification, the latex may be added before, during or after the emulsification.  To obtain a pulverulent preparation, powdered substances are added to the mass preferably after the latter has been cooled.  The products may be employed according to their consistency for cosmetic and therapeutic purposes; thus, a substitute for petroleum jelly may be prepared from petroleum, beeswax, latex, and a mixture of soap and alcohol, and petroleum may be converted into a gel or unguent for use as an ointment, for destroying insects &c., and for promoting the growth of the hair.  For such uses, the products may be improved by the addition of essential oils &c.  By treating crude oils, lubricating fats may be obtained.ALSO:Mineral oils thickened by the addition of natural or artificial latex, are used in preparations for therapeutic purposes, for instance, as ointments and for destroying insects.  The mineral oil may be thickened to a gel or unguent, and such thickening may be assisted by an addition of natural or artificial beeswax or their constituent, and carried out with the aid of soap and an organic solvent such as alcohol.  In particular, a substitute for petroleum jelly may be prepared from petroleum, beeswax, latex and a mixture of soap and alcohol, and petroleum may be converted into a gel or unguent for use as an ointment.  The preparations may contain appropriate additions, including essential oils, &c.
Patent GB-133227-A (GB)
IPC: B60B25/00
Abstract: 133,227. McRae, W. W. Dec. 30, 1918. Tyre attachments to rims.- In a two-part rim, the edge of one part 5 is slotted at 12 to pass the bolts 9 on the other part, the slotted edge being formed with a flange 13 (or series of projections) to engage behind the nuts 11 when these are screwed home.
Patent GB-769148-A (GB)
Title: Improvements relating to stator blade assemblies for compressors or turbines
Inventor: NICHOLS CHARLES ALVIN
IPC: F01D9/04
Filed: 1955-05-09
Abstract: 769,148. Turbine and compressor blade assemblies. GENERAL MOTORS CORPORATION. May 9, 1955, No. 13329/55. Class 110 (3). A compressor or turbine stator blade assem bly comprises inner and outer arcuate members of strip metal secured together, blades being inserted radially through slots in one of the members, each blade having a root in the form of a flat platform which is sandwiched between the two arcuate members to secure the blade against radial movement, and a shoulder which by interlocking engagement with a slot in one of the members, secures the blade against rotation. In a first embodiment the inner arcuate member 3 is of channel section as shown in Fig. 5, and has surfaces 8 and upstanding flanges 9, and is formed with apertures 10 of polygonal shape. A blade 12 having a platform 15 and a shouldered portion 17 is passed through each aperture 10, the shouldered portion 17 engaging the aperture 10 and being of corresponding shape prevents rotational movement of the blade. The outer arcuate member 4 which is formed with apertures 11 is then placed in position, tangs 16 on the blade roots passing through the apertures 11. The upstanding flanges 9 are finally crimped over the outer edges of the member 4. In a second embodiment (Fig. 7, not shown) both the inner and outer arcuate members 3 and 4 are of channel section and the corners of the tangs 16 on the blade roots are staked to the' outer arcuate member 4. In Fig. 9 the outer arcuate member 4 is received within the channel of the inner member 3 and is welded thereto at 30. In Figs. 10 and 11, the flanges of the inner arcuate member 3 are formed with castellations 24 which engage in notches 23 formed in the edges of the outer member 4, the parts being welded at 25, 28 after assembly. The blade roots are similar to those of the first embodiment. In a further embodiment, the end of the blade root projecting through the outer member is riveted over and the rivets of the plurality of blades form the only means by which the inner and outer members are connected together.
Patent GB-679165-A (GB)
Title: Treatment of iron ore flotation concentrates
IPC: C22B1/24
Filed: 1947-05-17
Abstract: In a process of preparing iron and coal briquettes for blast furnace use from iron ore flotation concentrates by mixing the concentrate with coal and carbonizing, the concentrate is first mixed with a viscous hydrocarbonaceous binder in amount from 2.5-15 per cent to render the concentrate dustless.  The mixture of concentrate and binder is heated to melt the binder, mixed with ground coal, briquetted and carbonized.  Specification 501,374 [Group XII], is referred to.
Patent GB-705936-A (GB)
Title: Process for producing dry, stable, easily dispersible sulfur dyestuff preparations
Filed: 1951-06-05
Abstract: A dyestuff preparation is made by a process comprising treating a sulphur dyestuff in presence of a protective colloid and a dispersing agent with a reducing agent customary for sulphur dyestuff reduction in a quantity substantially less than that required to effect complete reduction of the dyestuff.  The quantity of reducing agent may be between one-fifth and one-tenth of that required to effect complete reduction of the dyestuff. Reducing agents specified are sodium sulphide, sodium hydrosulphide, sodium hydrosulphite, and glucose.  Protective colloid and dispersing agents specified are dextrine, sulphite waste liquor, formaldehyde condensation products with aromatiic sulphonic acids, and certain tanning agents.  In examples (1) sodium sulphide, water, a tanning agent, glucose, and Immedialindon RR are mixed to a paste and dried; (2) Hydronblau R, a tanning agent, water, the sodium salt of oleyl-methyltaurine, glucose and sodium sulphide are mixed to a paste and dried.
Patent GB-150402-A (GB)
Title: Insulated tools
IPC: B25B27/00
Filed: 1919-05-28
Abstract: 150,402. Thorrowgood, W. J., and Tyler, J. F. S. May 28, 1919. Platelayers' tools and appliances; packing, tools for.-Metal tools for use on the permanent ways of electric railways are constructed of a number of parts, mechanically and positively connected together but electrically insulated from one another, any one metal part being too short in itself to make connection between the live conductor and the return conductor or earth. In the hammer head shown in Fig. 1, the part 1 has a projection 3 adapted to engage a corresponding slot in the part 2, and insulating material 4 such as red fibre is placed between the projection 3 and the slot. The parts 1 and 2 are connected by rivets 5 surrounded by short tubes 6 of insulating material where they pass through the projection 3. If required the part 1 may be constructed of two shorter parts connected by a slot and projection 8 at right angies to the projection 3. A pick and tamping tool, a wrench, a pair of rail-lifting dogs are similarly constructed according to the invention.
Patent GB-179960-A (GB)
Title: Improvements in wired wireless telephone systems
IPC: H04J1/06
Filed: 1922-05-13
Abstract: 179,960. Ges. f³r Drahtlose Telegraphie. May 14, 1921, [Convention date]. Wired wireless systems.-A single high-frequency generator supplies a plurality of lines. As shown in the diagram, a valve oscillator 1 has three coils 4, 5, 6 in its oscillatory circuit, each coil being loosely coupled to the grid circuit of a valve modulator 11, 12, 13. These valves also have their grid circuits coupled to telephone transmitters, and their plate circuits connected to telephone lines 14, 15, 16. A second valve oscillator generating a different frequency may be coupled to a second set of modulators associated with different telephone transmitters, but having their plate circuits connected to the same lines 14, 15, 16.
Patent GB-559572-A (GB)
Title: Improvements in and relating to the manufacture of artificial dentures
IPC: A61C13/16
Filed: 1942-09-28
Abstract: 559,572. Dental flasks. RUDKIN, A. H., and KELSEY, W. E. Sept. 28, 1942, No. 13583. [Class 87 (ii)] A step in the process of the production of artificial dentures from synthetic resins &c. comprises positioning between the two halves 4, 6, of a dental flask, during the initial pressing operation, a spacing member 1, to ensure that the dental flask portions will remain parallel with each other and that equal distributions of pressure on the material in the mould will be effected at the end of the initial pressing operation. After the initial pressing, the flask is taken down for inspection of the denture and excess material is trimmed off. The flask is then reassembled and the final pressing operation effected. The spacing member, 1, which is preferably a metal &c. washer, is of substantially the same shape as the abutting faces of the flask and is formed with recesses to accommodate the positioning lugs 3 of the flask portion 4.
Patent GB-1045429-A (GB)
Title: Transistors
Inventor: KING GEOFFREY ARTHUR LEONARD
IPC: H01L21/336
Filed: 1965-03-31
Abstract: 1,045,429. Transistors. STANDARD TELEPHONES & CABLES Ltd. March 31, 1965, No. 13629/65. Heading H1K. An insulated gate field effect transistor has source and drain regions of one conductivity type separated by a channel region consisting of the thickness of an epitaxially deposited layer of opposite conductivity type. In the embodiment a hole 14 (Fig. 2b, not shown) is etched using hydrogen chloride, through 0.001 ohm cm. N-type epitaxial layer 11 and part of substrate 10 of 1 ohm cm. P-type silicon. Epitaxial deposition of 5 ohm cm. P-type silicon results in layer 15, 5 Á thick, which lines the hole 14. The hole is then filled with 0.001 ohm cm. N-type material and the surface covered with silicon oxide. Metal connections 18, 20 and 19 provide contacts to source drain and gate regions respectively. Germanium may be used in place of silicon.
Patent GB-453239-A (GB)
Title: Improvements in and relating to belt gearing
IPC: F16H7/16
Filed: 1935-05-09
Abstract: 453,239. Belt-tensioning arrangements ; electric motor driving arrangements. WEARNS AUTO-FLEX DRIVES, Ltd., and PILKINGTON, D. K., 2, Sloane Terrace, Sloane Square, London. May 9, 1935, No. 13714. [Class 80 (i)] [See also Group XXXV] Relates to a belt-drive for an electric motor in which the belt is automatically tensioned by mounting the driving-pulley 9 on a floating plate 5 which can swing about the motor shaft 3, the pulley being geared to the motor shaft by annular gearing 11, 12. According to the invention, the floating plate 5 swings on a journal 2 which contains a ball or roller bearing 4 for the motor shaft. The journal 2 is mounted either on the motor casing itself or on an associated standard. Misalignment of the pulley due to its overhang is thus avoided. The pulley 9 may be closed to form a container for lubricant by a plate 14 secured to the floating plate 5 and provided with sealing-rings 15, 16.
Patent GB-729545-A (GB)
Title: Improvements relating to duplicating machines
Inventor: CRANE DENNIS PERCY
IPC: B41L7/08
Filed: 1951-06-09
Abstract: Copy sheet moistening arrangements.  In a rotary duplicating machine moistening means for the copy sheet comprise a fabric moistening strip extending transversely of the feed path along which the copy sheets pass to the master cylinder, the strip having a liquid-receiving portion looped round liquid distributing pipes, a liquid-transfer portion from which liquid is applied directly or indirectly to the copy sheets and an extraction portion for withdrawing excess liquid from the strip, and a receptacle positioned so as to collect any surplus liquid delivered to the receiving portion of the strip.  Fig. 3 shows a section through copy sheet forwarding rollers 19, 20 and the moistening means which include a trough member 27 across the top of which are supported parallel distributing pipes 28, 29. Encircling the pipes 28, 29 is the receiving portion 23 of the fabric <PICT:0729545/III/1> <PICT:0729545/III/2> strip 21, the continuations of which are passed down the curved side 60 of the trough to provide the transfer portion 22 and are attached to an absorbent pad 58 at the edges forming the extraction portion 25.  Orifices 36, 37 are provided in pipes 28, 29 directed downwardly and upwardly respectively so that liquid therefrom moistens one or the other side of the strip.  The liquid is transferred from the pipes to the pad by capillarity through the strip 21 and is lost from the pad by evaporation so as to maintain a constant flow of liquid across the strip.  The pad 58 rests against a guide 57 forming, with the roller 19, a tapering space in which the trough 27 is seated.  The portion 22 of the strip is pressed against the roller 19 so as to transfer liquid thereto.  Excess liquid fed to the strip falls into the trough and is returned to a reservoir.  A cover plate 64 mounted on a shaft 65 carries a pad 66 absorbing excess liquid from the feed roller. The liquid is supplied to the pipes 28, 29 by a pump, Fig. 7, comprising a cylinder 42 immersed in the liquid reservoir and a piston 43 mounted on a spring-loaded rod 46 reciprocated by a cam 44 on the main shaft of the printing cylinder.  A pair of pipes 34 connected to pipes 28, 29 enter a fixed closure cap 54, the pump cylinder being rotatable within the cap by means of a handle 53 so that the outlet port 52 may be placed in register with one or the other or both of the pipes 34.  Non-return valves are provided in pipes 34 and between the valves and the distributing pipes 28, 29 are tubes of equal length.  Each distributing pipe has one or more groups of orifices arranged to moisten zones of the strips which do not overlap.  By this means the liquid can be supplied to a variable zone or area of the moistening strip.
Patent GB-946416-A (GB)
Title: Optical projection apparatus
IPC: G03B21/30
Filed: 1961-04-17
Abstract: 946,416. Optical projection apparatus. B. E. LLOYD, and E. A. LLOYD. July 16,1962 [April 17, 1961], No. 13820/61. Heading G2J. In a combined projector and viewing apparatus comprising a box having a base and a lid and a screen adapted to act as or form part of a prop between the lid and the base, the base houses a projection system and a mirror is provided for reflecting a projected image on to the screen. As shown (Fig. 1), a slide projector is housed in the base of a box 1 and a screen 4 in a frame 3 forms a prop between said base and a lid 2, images being projected on to the screen by way of a mirror 5. Storage compartments 14 for slides 12 are provided in the box 1. A semi-automatic slide feeding mechanism is provided (Fig. 3), in which slides initially stacked between a spring-urged plate 18 and a back plate 25 are fed sequentially through a projection position 22 to a second stack formed between a spring urged plate 19 and a guide 34 by means of a carrier 20 manually actuated through a slidable control handle 17, this handle forming a rigid slide engaging projection 21 with one of its ends and the carrier 20 being provided with a springy slide engaging projection 32. Rollers 24 at the projection position 22 press the slides against the plate 25. The projection lens 27 is adjustably mounted to accommodate different thickness slides by means of screws 29 and slots 30. The screen may be of ground glass or translucent plastics material. Flaps may be provided at the sides between the screen and lid.
Patent GB-1279206-A (GB)
Title: Device for separating sheets from a pile
Inventor: REHM K
IPC: B65H3/04
Filed: 1970-03-23
Abstract: 1279206 Feeding sheets LICENTIA PATENT - VERWALTUNGS GmbH 23 March 1970 [24 March 1969] 13823/70 Heading B8R Sheets 1 are separated from the bottom of a pile by a friction belt 2 co-operating with a fixed convex guide surface 3<SP>1</SP> which prevents passage of more than one sheet. Separated sheets are forwarded to conveyer belt 42 via a detector 25, 25<SP>1</SP> which controls the belt drive. The belt 2 is maintained under constant tension by a weight device 5, 7, 8 or by a spring device (12, 13, 13<SP>1</SP>, Fig. 5, not shown).
Patent GB-551516-A (GB)
Title: Improvements in the governing of a prime mover such as a turbine supplied by gas generators
IPC: F02C5/08
Filed: 1941-10-28
Abstract: 551,516. Fluid-pressure servomotor-control systems. ENGLISH ELECTRIC CO., Ltd., CHITTENDEN, J. P., and WELSH, R. J. Oct. 28, 1941, No. 13874. [Class 135] [Also in Group XXVI] A turbine is driven by a mixture of exhaust gases and compressed air supplied by a plurality of internal-combustion engine and air-compressor units. These units may be of the free piston type. The turbine speed governor controls the fuel supply to the units and also the number of units in operation. A speed governor 1, Fig. 1, moves a piston valve 3 controlling a pressure fluid by which the fuel supply to three similar generators 31, 32, 33 is determined. A valve 5a, determines the number of generators in action and in the position shown transmits controlling fluid to all three. The loading spring 2 of the speed-governor abuts against a lever 9 the position of which is determined by a balance between a spring 10 and the fluid pressures in cylinders 11a, 12a, 13a. When the load falls, the speedgovernor reduces the pressure of the controlling fluid and the cylinders 11a ... 13a are open to this fluid, the lever 9 moves clockwise. This lever carries the piston valve 5a with it and thereby, if the fall in the load is sufficient, cuts out the generators 33, 32 in turn. At the same time, the pressure fluid is cut off from the corresponding cylinders 13a, 12a so altering the spring loading on the governor. To avoid hunting there is a lost-motion between th lever 9 and the valve 5a. The sequence in which the generators are put into and out of action can be varied by turning a valve 35. In a modification, pistons 11, 12, 13, Fig. 2, are coaxial and move a piston valve 16 to control the pressure in a cylinder 17a which opposes the spring 10. The upper surface of the piston 16 is also subject to the controlled pressure. The loading of the spring 10 may be adjusted by a lever 22 and the characteristic of the speed governor may be varied by moving the pivot o to right or left by a lever 23. The valve 5a is, in this case, operated by the controlled pressure admitted to a cylinder 18a and hunting, when a unit is cut in or out, is prevented by the use of small pistons 19, 20 which are subjected to the control pressures at the units 27, 28. In a third form, the spring loading of the governor is not varied but the valve 3 is connected to an intermediate point on the lever 9 so that the balance between the spring 10 and the pressure in cylinder 17a affects the positional relationship between the valve 3 and the governor sleeve.