baber/WOPTO huggingface dataset:
Patent GB-2452991-A (GB)
Title: Acknowledging receipt of data to both a relay node and a sending node
Inventor: JACKSON TIMOTHY
IPC: H04L1/16
Filed: 2007-09-24
Abstract: The invention concerns sending data from a sending node to a recipient node via a relay device and acknowledging receipt. In one embodiment the recipient node issues an acknowledgment which comprises information for notifying the relay node and the recipient node of receipt. In an alternative embodiment the recipient node issues to the relay node acknowledgment of receipt and in response the relay node issues to the sending node acknowledgment of receipt. Preferably, the acknowledgment issued by the recipient node combines acknowledgments from different protocol layers, such as layer 2 and layer 3. The relay node may cease monitoring acknowledgments after receiving the first acknowledgment. The recipient may issue at least two different types of acknowledgments.
Patent GB-2453989-A (GB)
Title: Thermal Treatment Chamber with External Heat Source
Inventor: HUNT MR STEVEN GEOFFREY
IPC: F23G1/00
Filed: 2007-10-25
Abstract: A thermal treatment apparatus 1 comprises a heat treatment chamber (4, figure 2), a heat source 5 external to the heat treatment chamber 4 and at least one heat transfer member 6 to transfer the heat from the heat source to the chamber. The heat source 5 may be a liquid petroleum gas (LPG), diesel or natural gas burner. The transfer member 6 may be a heat pipe having one end 6a proximate the heat source 5. The second end of the tube 6b may be cooled to remove excess heat from self-sustaining processes such as incinerating pig carcasses. Several tubes 6 may be arranged in parallel, less than 10cm apart defining a plane dividing the chamber 4 into two sections such that gasses released from the material to be treated must pass over the heat pipes 6, preferably reaching 850{C for at least 2 seconds before exiting the chamber 4. The chamber 4 may be designed to focus the heat from the transfer members 6 onto a point or line. Oxygen levels in the chamber can be accurately controlled for gasification, incineration or pyrolysis.
Patent GB-2442414-A (GB)
Title: Equalizer valve assembly
Inventor: ROGERS HENRY E
IPC: E21B21/10
Filed: 2006-07-11
Abstract: A method for controlling a fluid pressure applied to a cementing plug (160) comprises disposing the cementing plug (160) within a casing string (110) to define a trapped volume of fluid within the casing string, isolating a portion of the trapped volume of fluid adjacent the cementing plug (160) to define an isolated volume of fluid, and relieving the fluid pressure within the isolated volume of fluid at a first rate sufficient to prevent damage to or inadvertent release of the cementing plug. An apparatus for relieving fluid pressure within a casing string (110) being ran into a well bore comprises at, least one equalizer valve (140,240) connected to a work string (130) extending into the casing string (110), and a sealing device (180) disposed above the equalizer valve (140) to seal an annular space (170) formed between the work string (130) and the casing string (110).
Patent GB-2456590-A (GB)
Title: Water cooled heat dissipation device for a notebook computer
Inventor: LIN CHIA-CHING
IPC: G06F1/20
Filed: 2008-03-13
Abstract: A water-cooled heat dissipation device for a notebook computer includes a pad or stand 1 with an air through-hole 11, a finned heat sink 23, a water cooling circuit 24 passing through the heat sink, and a fan 21 to blow cool air across the fins of the heat sink. The heat sink is fixed below the air through-hole of the pad or stand with a U-shape plate or bracket 22, and the fan is also mounted on top of the heat sink by means of this same bracket. In use, a notebook computer is put on the pad or stand, conducting heat from the notebook computer to the heat sink. A water pump 25 circulates cooling water through the heat sink 23 via metal tubing 24 and air blown out by the fan 21 passes around the fins to cool the computer rapidly. The stand may also have a USB connection and the water pump and fan may be powered from the USB port of the notebook computer.
Patent GB-2462917-A (GB)
Title: Revolving grinding wheel with thicker outer portion
Inventor: LL XUE SHENG
IPC: B24D7/04
Filed: 2009-08-25
Abstract: A revolving whetstone or grinding wheel 11 comprises a central portion 12a including a centre hole 13 for driving shaft (32 fig. 5) of a grinder (31 fig. 5) and a disc-shaped whetstone body 12b outside the central portion 12a, the wall thickness of the outer portion 12b being thicker than the wall thickness of the central portion 12a. The body 12 may be made of an abrasive such as bauxite moulded and sintered in a binder resin and glass cloth reinforcements 15 may be provided. Compared to the prior art (fig. 9) grinding wheel 11 includes additional usable material 12d within outer portion 12b by using less material towards the centre, shown cross hatched at D, thus reducing waste for the same amount of material used to make the wheel 11. A reinforced metal fitting 14 may be provided at the centre hole 13.
Patent GB-2473853-A (GB)
Title: AC motor control device
Inventor: ZHONG QINGCHANG
IPC: H02P6/08
Filed: 2009-09-25
Abstract: A control device for an AC motor comprises units to provide speed and torque information, speed controller, a torque controller, a unit to compensate the voltage drop on the stator resistance and a voltage generation unit. The control device may be used in the implementation of an AC Ward Leonard type variable speed drive (VSD) system where an AC motor is powered by a synchronous generator driven by a variable-speed prime mover. The synchronous generator and the prime mover may be replaced with an inverter that behaves as a synchronous generator. The torque and speed of the AC motor may be controlled via controlling the torque and frequency of the synchronous generator.
Patent GB-2475544-A (GB)
Title: A clockwork mechanism for moving a parasol to track the sun
Inventor: OSBORN BRADLEY
IPC: A45B9/00
Filed: 2009-11-21
Abstract: A mechanism (100, fig. 1) for moving a parasol in relation to the sun as it traverses the sky comprises a housing 202, a positioning element 204 rotatably mounted on the housing and connected to a parasol, and a clockwork mechanism (not shown) having a ratchet and torsion springs mounted inside the housing. The clockwork mechanism is connected to the positioning element, so that the ratchet allows the clockwork mechanism to slowly unwind and rotate the positioning element in synchrony with the sun. The mechanism is would by means of a lever 206. In this way the parasol creates static shade over a user. The mechanism may be integrated into a parasol, or may be used with existing parasols.
Patent GB-1418345-A (GB)
Title: Method and apparatus for drying a gas and chilling it to low temperatures
IPC: F25B29/00
Filed: 1973-03-01
Abstract: 1418345 Refrigeration; defrosting PEUCHEN Inc 1 March 1973 [1 March 1972] 10004/73 Heading F4H A refrigeration unit for continuously cooling and drying a hot pressurized gas, such as air for blow-moulding, comprises heat exchangers 1, 1A containing cooling coils 36, 37 which are selectively connectable to the compressor 4 for defrosting or to the condenser 6 of the refrigeration circuit. During the first stage of operation, solenoid valves 10-13 are operated to supply hot refrigerant from the compressor 4 to the coils 37 and cold refrigerant from the condenser 6 to the coils 36. Pressurized gas to be cooled is then passed through a pre-cooler 2 to the heat exchanger 1, by operation of solenoid valves 8, 9, and then the cooled gas is passed through a line 22, through the cooler 2 to the outlet line 23. In the second stage, the valves 10, 11 are operated to allow cold refrigerant to pass to the coils 37. The valves are then operated to cause the pressurized gas to flow to the heat exchanger 1A and the coils 36 are defrosted by hot refrigerant from the compressor 4. The cooled gas in the outlet line 23 passes through a further heat exchanger 3 to an outlet valve 39. The heat exchanger 3 is provided with cooling coils 38 connected to a second compressor 5 and condenser 7. Expansion valves 16-18 are actuated by sensors measuring the temperature and pressure of the refrigerant gas after absorbing heat from the gas being cooled. The solenoid valves may be actuated manually or in a timed sequence.
Patent GB-1214684-A (GB)
Title: Wall construction
Inventor: IMBRECHT ARTHUR G
IPC: E04B2/82
Filed: 1968-03-01
Abstract: 1,214,684. Partition structure. HUPP Inc. 1 March, 1968, No. 10024/68. Heading E1W. The space between an edge of a room partition panel 12 and a boundary surface of a room, particularly a suspended ceiling, is filled by a filler member 28 telescopically extendible from the panel and retained in an appropriate extended position by co-operating magnetic means 50, 52 fixed respectively to the filler member 28 and the boundary surface of the room. In the embodiment described an elongated strip 52 of plastics permanently magnetic material clipped to a suspended ceiling T-bar 46 is received within a recess 36 in the filler member 28 where it co-operates with a ferromagnetic metal strip 50 fixed to the filler member.
Patent GB-868857-A (GB)
Title: Apparatus for the continuous vacuum treatment of metals
Inventor: SCHEUER ERNST
IPC: F27B5/04
Filed: 1958-03-28
Abstract: 868.857. Degasifying metals. INTERNATIONAL ALLOYS Ltd. March 19, 1959 [March 28, 19581, No. 10042/58. Class 72 [Also in Group XXVIII] An apparatus for continuous vacuum treatment of liquid metal comprises electrically heated barometric legs made of tubes of material permeable to gas but impermeable to metal, enclosed within a gas tight shell, a tubular extension of the shell being joined by liquid tight seals to each tube and dipping into sumps of metal. As shown, metal from sump 2 is drawn by the vacuum in steel shell 1 up the tubular extension 3 and through the feed tube 4, which is made of graphite or silicon carbide and heated by heaters 21. From an overflow 5 the metal flows to an evaporator tray 6 where impurities are evolved. The purified metal flows to the overflow 7 and the tube 8 and is returned to a sump 9 by another tubular extension 3. The seals between the extensions 3 and the tubes 4 and 8 (Fig. 3 not shown) comprise a series of cups inserted one inside the other, a seal between an outer steel and an inner graphite cup being maintained by the permeation and solidification of some liquid metal, e.g. aluminium, into any gap between them.
Patent GB-727420-A (GB)
Title: Improvements in or connected with fastening devices for handbags
Inventor: SILVERMAN FRED
IPC: A45C13/06
Filed: 1952-04-22
Abstract: 727,420. Handbag fastenings. MAYER (LONDON), Ltd., L. S. July 20,1953 [April 22, 1952], No.10075/52. Class 44. A fastener for a hinged mouth frame of a handbag comprises a locking member in the form of a short rod 1 hingedly connected (at 4) to the rear member 6 of the frame a ball or knob 3 at the free end of the rod, a U-shaped member 8 and a ball or knob 9 on the front member 7 of the frame so arranged that the rod 1 can be turned down to engage in the U-shaped member 8 to hold the members of the frame closed and the balls or knobs 3, 9 interengaged to hold the rod 1 in locked position.
Patent GB-215731-A (GB)
Title: Improvements relating to the reproduction of sound records
IPC: G11B7/00
Filed: 1924-04-23
Abstract: 215,731. Poulsen, A., and Petersen, A. C. G., (Assignees of Willadsen, A. 0. S.). May 11, 1923, [Convention date]. Optical apparatus. - Relates to apparatus for reproducing sound from a film record by passing the film between a source of light and a photoelectric cell. According to the invention, an enlarged image of the illuminated portion of the record is formed directly on a linear light-sensitive cell, without the use of a slit between the record and the cell. In the apparatus shown, a film record 1 is illuminated through a lens 3, and an enlarged image of the illiiminated portion is formed by a lens 4 upon a selenium or like cell 7 of linear shape. The cell is arranged in the usual way in an electric circuit including a soundreproducer. The Specification, as open to inspection under Sect. 91 (3) (a), describes also an arrangement shown in Fig. 1 (Cancelled) in which a screen 5 having a slit 6 is inset, a magnified image of a part of the same record film 1 being produced on the screen by means of a light source 2 and lenses 3, 4. Light passing through the slit 6, which is adjusted in width according to the width of the sound signs in the image, is focussed by a lens 8 on a photo-electric cell 7. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1155153-A (GB)
Title: Process for Pad Dyeing and Printing Mixtures of Cellulose Fibres and Fibrous MAterials of Linear Polyesters
IPC: D06P3/66
Filed: 1967-03-03
Abstract: 1,155,153. Dyeing cellulose/polyester fibre mixtures. FARBWERKE HOECHST A.G. 3 March, 1967 [5 March, 1966], No. 10223/67. Heading D1B. Mixtures of cellulose and linear polyester fibres are pad-dyed or printed simultaneously with reactive and disperse dyes in a single operation by padding or printing with a liquor or paste containing the dyestuffs and a mixture of an alkali metal bicarbonate e.g. sodium or potassium and a free weak acid or compound having a weakly acid reaction and a dissociation constant of 1 x 10<SP>-7</SP> to 1 to 10<SP>-11</SP> as fixing agent the liquor or paste having an initial pH below 8.5 e.g. 6.5 to to 7.8, the quantities of the fixing agent components being such that on heating to above 100‹C to fix the dyeing or print, the pH rises to at least 9, e.g. 9.5 to 10. Weakly acid compounds used are phenols, nitrophenols, cresols, di- and trihydroxybenzenes, hydroxybenzene or naphthalene carboxylic or sulphonic acids, acetylacetone, acetoacetic acid anilides, and boric or silicic acids. 1000 grams of liquor or paste used preferably contains 5 to 30 grams alkali metal bicarbonate and 1 to 1.5 mols of weakly acid compound per mol of alkali metal bicarbonate. Fixation preferably takes place by steaming at above 100‹C or by dry-heating at 130‹ to 250‹C. The disperse dyes mentioned are azo or anthraquinone and the reactive dyes are azo, anthraquinone or phthalocyanine. The pad-liquor or print paste may contain the conventional carrier or thickening agents.
Patent GB-473337-A (GB)
Title: Improvements relating to printing machines
IPC: B65H29/04
Filed: 1936-04-07
Abstract: 473,337. Delivery-apparatus for printing-machines. CRABTREE & SONS, Ltd., R. W., and EVAD7S, A. B. April 7, 1936, No. 10251. [Class 100 (i)] In a sheet-delivery apparatus for printing- machines the sheets are delivered to a pile x from a stream of successively-overlapping sheets t held at their upper edges by grippers v carried by endless chains k and spaced apart a distance substantially less than the sheet length. The sheets are taken from the impression cylinder a by grippers g on endless chains e and transferred to the grippers v, the grippers g, v moving in opposite directions at the point of transfer. The grippers v are rotated relatively to the chain k so that initially the sheets hang vertically therefrom but subsequently are turned into the horizontal position so as to overlap prior to their release from the grippers v and delivery to the pile x. A table z supports the lower ends of the sheets during their passage to the pile x. In order to operate the grippers in the desired manner, the gripper-carrying brackets k<5> are fixed to shafts k<3> mounted in links k<2> of the chains k. Each shaft k<3> has two extending arms s, s<1> provided with runners s', s<3>, adapted to co-operate with cam-grooves q, r, so as to rotate the gripper v as desired.
Patent GB-197500-A (GB)
Title: Improvements relating to glass
IPC: C03C4/08
Filed: 1922-04-11
Abstract: 197,500. Chance Bros. & Co., Ltd., and Forster, A. L. April 11, 1922. Production of metal.-Relates to glass of the kind in which iron oxide is combined in the ferrous state to enable the glass to act as a good absorber of thermal radiation. According to the invention, the proportion of iron oxide is such that the amount of ferrous oxide per unit area of the glass will give the desired absorption and transmission of thermal and luminous radiations. For example, hammer scale or iron oxalate is added in such quantity that the finished glass sheet contains about 0.01 of a gram of ferrous oxide per square centimetre of surface. It is found that with such a glass the ratio of luminous radiation transmitted to thermal radiation absorbed is a maximum, and the glass is suitable for window and roofing purposes in hot countries.
Patent GB-1525177-A (GB)
Title: Membrane apparatus for treating ascites
IPC: A61M1/36
Filed: 1976-03-16
Abstract: 1525177 Treating body fluids in extracorporeal circuit ASAHI KASEI KOGYO KK 16 March 1976 [20 March 1975 29 May 1975 19 Sept 1975] 10472/76 Heading A5R [Also in Divisions Bl and Fl] A membrane apparatus for treating ascites comprises a transporting means, e.g. a pump (see Division Fl), a filter including a first membrane means for blocking the passage of bacteria, cancer cells and other substances of similar size but allowing the passage of protein, a hemolysis preventative means removing air bubbles from the ascites before the filter, an ascites concentrating means coupled to the filter output comprising a second membrane means permeable only to substances smaller than those passed by the first membrane means so retaining the protein in a protein-concentrated ascites which is collected for return to the body. The assembly may also include an adsorber, e.g. activated carbon, for removing pyrogens. The filter membranes are of the type generally employed in ultra filtration, either flat or preferably of hollow fibre form. The first filter has a pore size of 0.2Á or less.
Patent GB-352027-A (GB)
Title: Improved power transmission device
IPC: F16D3/12
Filed: 1930-04-02
Abstract: 352,027. Resilient shaft couplings. HOLMAN, H. E., 64A, The Chase, Clapham Common, London. April 2, 1930, No. 10495. [Classes 80 (i) and 80 (iii).] A resilient shaft coupling for transmitting a constant angular velocity at a substantially constant phase from a source of cyclically varying angular velocity, for use in synchronous sound motion picture production, comprises an intermediate flywheel A freely mounted on a driving shaft B to which it is resiliently connected to allow a limited relative movement by an arm H fixed to the shaft and having its end arranged between two springs 9 or like resilient or buffer devices attached to lugs K on the flywheel, which springs may be damped. The flywheel carries on a shaft C planet elements D, D<1> geared up and down respectively to a wheel F fixed on the driving shaft and a wheel F<1> fixed to a driven shaft E. Cyclic variation is absorbed by relative acceleration or retardation of the flywheel, relative movement of which causes a larger relative movement between the shafts by virtue of the reduction gear. The springs also assist in overcoming the effect of a retardation of the driver. The springs may be replaced by a friction clutch or pad between the flywheel and the driving shaft or pinion or the arm H. Bevel or internal spur gearing may be used. An equivalent lever system may replace the gearing, in which case the ends of the levers projecting radially from shafts B, C, and also from shafts C, E, may be in direct forked engagement or be connected by a rod. The planets are balanced by drilling the flywheel.
Patent GB-679160-A (GB)
Title: Improvements in hot water supply systems
Inventor: RYDBERG JOHN ANDERS
IPC: F24D17/00
Filed: 1950-04-28
Abstract: 679,160. Hot - water supply systems. AKTIEBOLAGET GUSTAVSBERGS FABRIKER. April 28, 1950, No. 10513/50. Class 64(i) In a hot-water supply system in which water is heated in a heat-exchanger 8 by hot water drawn from a boiler 3 and passed through the heat-exchanger and back to the boiler by a pump 4 in either the flow line 13 from (as shown) or the return line 7 to the boiler 3, the hot and cold ends of a hot-water storage tank 2 are connected to the flow and return lines 13, 7 respectively, the connection of one of them being to the delivery and suction sides of the pump 4 by a three-way valve 5 actuated by a temperature-responsive device 11 controlled by the temperature of either the heating or the heated water leaving the heat-exchanger, so that the tank is connected to the delivery or suction side of the pump when the said temperature is respectively above or below a certain temperature or temperature range. Thus the tank 2 is charged with hot water when the flow of water for consumption is low and discharges it when the flow for consumption is high. A byepass pipe 12 is provided. Hand-operated valves 17, 18, 19, 20 control the amount of flow through the various pipes. The tank 2 can be replaced by two or more tanks in series and/or parallel. The boiler 3 heats the water circulating through it to a constant temperature.
Patent GB-768904-A (GB)
Title: Process for preparing 1, 1, 2-trichlorethane
IPC: C07C17/08
Filed: 1955-04-12
Abstract: 1,1,2-Trichlorethane is prepared by reacting 1,2-dichlorethylene with hydrogen chloride, the reaction being started under a partial pressure of hydrogen chloride between about 5 and 50 atmospheres gauge at between about 50 DEG  and about 110 DEG  C. and in the presence of aluminium chloride.  The reaction is preferably started at between about 50 DEG  C. and 70 DEG  C. at between about 10 and 20 atmospheres gauge and is preferably finished at between about 50 DEG and 110 DEG  C. under a pressure between atmospheric and a partial pressure of hydrogen chloride of about 40 atmospheres gauge.  The preferred quantity of aluminium chloride catalyst is in the range of 0.2 to 5 per cent referred to the trichlorethane formed.  The starting materials are advantageously dried before use and the process may be continuous or discontinuous.  The hydrogen chloride can be diluted with gases indifferent to the reaction.  In examples: (1) hydrogen chloride is introduced at 30 atmospheres gauge into 1,2-dichlorethylene containing aluminium chloride in an autoclave, which is then heated to 60 DEG  C., when the pressure rises to 40-50 atmospheres. At 60-70 DEG  C. the pressure drops to atmospheric. Heating is continued to 90 DEG  C. and hydrogen chloride is continuously added at normal pressure until absorption ceases.  After cooling, the reaction product is recovered by distillation.  (2) The initial stages are as in Example (1) but when the pressure starts to drop at 60 DEG  C. it is maintained at 25-30 atmospheres at 85-90 DEG C. by the continuous introduction of hydrogen chloride.  A higher yield of trichlorethane is thus obtained.
Patent GB-1139012-A (GB)
Title: Improvements relating to compressed-air braking systems for commercial motor vehicles
IPC: B60T13/40
Filed: 1967-03-07
Abstract: 1,139,012. Vehicle brake arrangements. DAIMLER-BENZ A.G. 7 March, 1967 [9 March, 1966], No. 10594/67. Heading B7H. [Also in Division F2] A motor vehicle 1 provided with a compressed air braking system has a coupling 9 at its front end whereby when pushing a trailer 2 the trailer brakes may be operated. The braking system comprises compressor 3, reservoir 4, vehicle brake valve 5, trailer brake valve 6 and a rear coupling 7. In the event of vehicle 1 being towed an air line from the towing vehicle may be connected with the braking system of vehicle 1 via coupling 9 and a change over valve 8 to the reservoir. A double stop cock type and a rotary type change-over valve are illustrated in Figs. 3 and 4 (not shown), respectively.