baber/WOPTO huggingface dataset:
Patent GB-1198611-A (GB)
Title: Closed Loop Control System.
Inventor: HILL GEORGE LEONARD
IPC: G05D3/14
Filed: 1966-04-20
Abstract: 1,198,611. Automatic speed control. ROLLS-ROYCE Ltd. July 20, 1967 [April 20, 1966], No. 17194/66. Heading G3R. A gas turbine engine 30 is controlled by throttle valve unit 31, the speed being selected by lever 33 determining a demand signal 35 fed to summing junction 36 which also receives a speed feedback signal 38. The error signal 39 which is converted into a control signal 40 for the fuel flow, is applied through junctions 42,44, to amplifier 46 whose output signal 47 constitutes the input to unit 31. The unit 44 operates to subtract the feedback signal 38 from the signal 39. Seat 53 and stop 54 define the limits of movement of valve member 52, so limiting the control signal 40. The member 52 is driven by motor 56 whose position is monitored by transducer 59 for feeding back signal 60 to junction 55 which also receives the signal 47 and whose output 62 represents the positional error. An integrator 64 receives the positional signal 65 which passes through amplifier 67, junction 69, and delay unit 66 to the junction 42 where it is added to the signal 39. The junction 69 also receives the feedback signal 38. The signal 43, which is derived from the junction 42, is an integral of the signals 39 and 60, the latter signal being subject to the same limitation as the control signal 40 whereby the integral signal 43 cannot continue to increase after the valve member 52 engages stop 54. This prevents over-shooting of the demanded speed when the signal 35 is suddenly increased. Instability is reduced by differentiator 71 which feeds back into the junction 36. The elements 67, 69, have a performance which is the mathematical converse of that of the elements 44, 46, and the effect of the latter is thus removed from the feedback signal 65. The control system may either be analogue or digital in character, and, in the latter case, the unit 66 is dispensed with. The integrated error signal may be limited by saturation or rate unit 81 instead of the stop 54, the feedback signal 65 being taken directly from the output of the limiter.
Patent GB-724532-A (GB)
Title: Steroids
IPC: C12P33/00
Filed: 1952-07-08
Abstract: The invention comprises 11(a )-hydroxy-6-dehydroprogesterone and the preparation thereof by bringing 6-dehydroprogesterone into contact with oxygenating substances produced by a growing fungus of the genus Rhizopus, e.g. Rhizopus arrhizus or Rhizopus nigricans, under aerobic conditions.  The fermentation may be effected by the growing fungus in the presence of a nutrient medium.  The product may be isolated by chromatographic technique.
Patent GB-146153-A (GB)
Title: Improvements in roller drawing heads for spinning machines
IPC: D01H5/22
Filed: 1920-06-24
Abstract: 146,153. Cesoni, F., and Lirussi, A. Feb. 12, 1914, [Convention date]. Rollers and roller heads.-A roller drawing-head for spinning-machines comprises a pair of smalldiameter rollers 1, 2, arranged at a distance from the drawing-rollers 5, 6 considerably shorter than the normal fibre length of the sliver being drawn. The lower roller 2 is driven from the lower feedroller 4 by gearing 7, 8, 9 or by other suitable means. Reference has been directed by the Comptroller to Specifications 11967/11, 27429/11, 14627/12, and 29316/12.
Patent GB-380151-A (GB)
Title: Motor car elevator, being a means of lifting or elevating motor vehicles and the like
IPC: B66F7/24
Filed: 1931-06-15
Abstract: 380,151. Stands and supports for vehicles. MORTER, E. R., 3, Salisbury Mansions, St. Ann's Road, Harringay, London. June 15, 1931, No. 17280. [Class 79 (iii).] A raised support for motor vehicles comprises a braced pair of runways 10 pivoted on a trestle or the like 12 and resting normally with one end upon the ground, being tilted to the horizontal by the weight of the vehicle when the centre of gravity thereof passes over the pivot 13. A rigidly secured frame 14 at the upper end, in conjunction with a pivoted frame 15 at the lower end, renders the support stable in the horizontal position. The pivoted frame 15 may be dispensed with, the upper or rear part of the support being extended in this case so that the vehicle may be located over the trestle 12 and frame 14. In the horizontal position, the hinged parts may be secured, as by clamping bolts 23. The ends 19 of the runways may be closed to provide wheel stops. Detachable extension runways 21 may be fitted to enable the gradient to be reduced. An intermediate detachable runway 22 may be provided for vehicles of narrow wheel base. The trestle may be mounted on wheels 20 which may be removed or raised off the ground when not required for transport purposes. Reference has been directed by the Comptroller to Specifications 15336/05, [Class 78, Lifting &c.], 190,610, 206,403, and 251,831, [all in Class 79 (iii), Motor vehicles, Arrangement &c. of parts of].
Patent GB-690944-A (GB)
Title: Improvements in and relating to the recovery of gases from gas mixtures
Inventor: HODGSON MAURICE ARTHUR ERIC
IPC: B01D53/14
Filed: 1950-07-11
Abstract: Acetylene is recovered from gaseous mixtures, for example from mixtures obtained by the partial combustion of methane/hydrogen mixtures with oxygen, by scrubbing the mixture with a solvent p consisting of dimethyl formamide or ethylene diacetate, scrubbing the residual gas with water to recover volatilized solvent, and then subjecting the solvent and aqueous solutions to distillation in a single distillation column such that the acetylene and water distil off, leaving a residue of solvent for re-use in the process.  During the distillation water is allowed to reflux in the distillation column and thereby substantially completely strips the acetylene of solvent.  The acetylene and water are separated in a condenser and catchpot from where the water may be recycled to the distillation tower as an external reflux and also to the second scrubbing tower.ALSO:<PICT:0690944/III/1> A desired gas is recovered from a gas mixture by first scrubbing the mixture in a tower 1 with a solvent having preferential solvent properties for the desired gas, then scrubbing the residual gas in a tower 9, to recover volatilized solvent therefrom, with a liquid which can dissolve the solvent vapours, but which is a non-solvent for the desired gas, the said non-solvent liquids having a lower B.P. than the said solvent, being readily substantially separable from said solvent by distillation and not being an undesired contaminant in the desired gas, and then subjecting the solvents and non-solvent solutions to distillation in a single distillation column 5 such that the desired gas and non-solvent distil off leaving a residue of solvent.  During the distillation non-solvent is allowed to reflux in the distilling column and thereby substantially completely strips the desired gas of solvent.  The desired gas and non-solvent are separated in a condenser 18 and a catchpot 20 from where the non-solvent is recycled partly through conduit 21 to the top of the tower 5 as an external reflux and partly through conduit 19 to tower 9.  The solvent is recycled to tower 1.  The invention may be applied to the recovery of acetylene, dimethyl formamide or ethylene diacetate being employed as solvent and water conveniently being employed as non-solvent.
Patent GB-717404-A (GB)
Title: Improvements in or relating to clutch mechanism
Inventor: MEACHER WYATT
IPC: B23K11/10
Filed: 1950-07-11
Abstract: 717,404. Operating clutches. WESTMINSTER ENGINEERING CO., Ltd. July 10, 1951 [July 11, 1950], No. 17337/50. Class 80 (2) A clutch is engageable in any one of a number of positions by an operator and is disengaged by power actuated mechanism, at a predetermined point near the end of a machine cycle, only when said engaging mechanism is released and a trip associated therewith is released from a pawl on the disengaging mechanism which may then function. A pivoted arm on a spot-welding machine is operated through a spring and a rod 10, Fig. 1, by an eccentric 13 freely mounted on a shaft 14 and attached to a claw clutch member 15. A complementary clutch member 30 is keyed to the shaft 14, which is driven by an electric motor through a worm gear, and is movable into engagement with the member 15 by means of a pedal-operated lever 32 carrying a roller 31. A spring 52 is disposed between the operating pedal and the lever 32 which lever is incapable of disengaging the clutch. An adjustable abutment 42 on the rod 10 actuates a spring-biased lever 40 pivoted to a member 43 which engages a shoulder on the member 30 to disengage the clutch at the end of a machine cycle. The member 43 is rendered inoperative, to allow clutch engagement, by a projection 45 on the lever 32. The tops 21, 21A, Fig. 2, of the clutch teeth 20, 20A, are inclined to facilitate engagement.
Patent GB-222084-A (GB)
Title: Improvements in or relating to self-acting mules
IPC: D01H3/06
Filed: 1924-07-21
Abstract: 222,084. Compagnie d'Applications mÚcaniques. Sept. 20, 1923, [Convention date]. Spring supports; dust &c., excluding; covers.- The spindles of self-acting mules are supported in ball bearings mounted within tubes 4 connecting the rails 1, 2. The ball bearings 10, 11 are carried in casings 12, 13 supported in an elastic manner by springs 14, 15. A spring 29 bearing against a plug 19 secured in the top of the tube, and against a washer 30 allows longitudinal elasticity and also serves to take up wear. The tube 4 is provided with openings 31, 62 to allow the passage of the driving-band 6, and an opening 28 to allow lubrication of the lower bearing 11. A leather washer 20 closes the hole 21 in plug 19, and a removable cap 27 closes the top of the lower casing 13. An oil deflecting device 18 is secured to the spindle in the casing 12.
Patent GB-924081-A (GB)
Title: Method of treating expanded sponge material to render it hydrophilic and product thereof
IPC: C08J9/40
Filed: 1959-05-22
Abstract: Sponges, particularly those of polyurethane, cellulose, rubber, polyvinyl chloride or polyvinyl formal, having improved hydrophilic properties are obtained by soaking the sponge in an aqueous dispersion containing at least 0,1%, preferably 1-2%, by weight of a generally water insoluble or only slightly water soluble non-ionic or cationic surface active agent at 20-85 DEG C. for a time sufficient for the sponge to absorb at least 1%, preferably 5-20%, by weight of the agent, calculated on a dry basis.  On removal from the treatment bath, the sponge is wrung out and dried, for example at 130 DEG F. The dispersion of the surface active agent may be facilitated by the use of such solvents as low molecular weight ketones, aliphatic alcohols and aliphatic ethers, a suitable bath comprising 40-95% water and 5-60% methanol.  Where the bath comprises such a dispersing solution the sponge is usually treated at the lower part of the temperature range quoted; when only water is present, the upper part of the temperature range is preferred.  Suitable surface active agents are fatty alkanolanides, various oxazolines, and ethylene oxide condensates with alkylphenols and fatty alcohols.  U.S.A. Specifications 2,085,052, 2,386,995, 2,444,546, 2,444,869 and 2,609,347 are referred to.
Patent GB-544960-A (GB)
Title: Improvements in or relating to steam superheating apparatus equipped with de-superheating means
IPC: F22G5/16
Filed: 1940-12-12
Abstract: 544,960. Steam superheaters. SUPERHEATER CO., Ltd., and BARCLAYS BANK, Ltd., (Representatives of WOOD, J. E.). Dec. 12, 1940, No. 17599. Addition to 523,014. [Class 123 (iii) In a steam superheater header provided with a hinged valve 33 directing the superheated steam partly through a pass containing cooling coils 16 and partly through a byepass 13, as described in the parent Specification, the steam from the two passes flows to the outlet 21 through a third pass 14 in a direction opposite to the direction of flow in the first two passes. The cooling coils are supported in a casing 17 with a steam inlet 24 at one end and an outlet 42 at the other end. The casing and the coils are made in sections to facilitate removal. The boiler feedwater is used as the cooling medium. The valve 33 is controlled by a temperature responsive element in the steam delivery pipe. Specification 424,357 is referred to.
Patent GB-1125457-A (GB)
Title: Improvements in or relating to telecommunications exchange systems
IPC: H04Q3/555
Filed: 1966-04-22
Abstract: 1,125,457. Automatic exchange systems. SIEMENS, A.G. 22 April, 1966 [23 April, 1965], No. 17617/66. Heading H4K. In an exchange system having a multistage switching network, the inlets of the network are arranged in a plurality of groups each of which includes subscribers' lines T and incoming junctions LA and similarly the outlets are formed in groups each of which contains outgoing junctions R, digit receivers Reg and link circuits JV. This form of "grading" is said to distribute the traffic more evenly so that the network is used to its maximum extent. In order to provide overflow facilities some of the outlets are connected directly to some of the inlets. Some lines may be multiplied over a number of inlets. The link circuits may act as feedbridges or as direct couplersdepending on the nature of the line circuits connected to the network-and they may include facilities for call transfer. Separate ringing current and ringing tone circuits which are accessible over a path through the network which in general is different from that to be used for the speech path are provided. A marker is called into use as and when required, for example during the course of setting up a call it will cause ringing to be applied to the calling and called parties and when the latter replies it will be reseized in order to then set up a path between the two parties. The choice of a route for each connection is performed in the marker by a route simulating network but the method of operation and precise nature of this is not disclosed. It is mentioned however that the order in which interstage links are selected during route finding is varied so as to further ensure equal distribution of traffic. The latter may be effected for example by statistically metering the number of unsuccessful call-attempts or by measuring the actual load on each switch or simply by cyclically altering the starting point in successive selections.
Patent GB-353995-A (GB)
Title: A device for the disinfection of telephonic instruments
IPC: H04R1/12
Filed: 1930-06-06
Abstract: 353,995. Sanitary and hygienic devices. SARDAFARIGOLA, M., 54, Rue Princessa, Madrid. June 6, 1930, No. 17629. Convention date, June 10, 1929. [Class 40 (iv).] A disinfecting device for telephone instruments such as earpieces, comprises two cylindrical members provided respectively with a flat top and flat bottom, each having a central circular hole therein and being adapted to fit into one another with gentle friction so as to form a cylindrical box, the member constituting the body of the box being formed with an internal flange at the periphery of the circular hole of a height slightly less than the depth of the box so as to form an annular chamber for the reception of a microbicide substance. Perforations are formed in the lid and body of the device and the body is formed with curved flanges 1 for attachment to the earpiece.
Patent GB-1432228-A (GB)
Title: Polymeric absorbents and method for manufacture thereof
IPC: B01D53/50
Filed: 1973-04-12
Abstract: 1432228 Treating water ASAHI KASEI KOGYO KK 12 April 1973 [13 April 1972] 17655/73 Heading C1C [Also in Divisions B5 B1 and C3] An adsorbent material is composed of a mass of microfibrils of a synthetic polymer or copolymer. These fibrils may be formed into a structure through being sandwiched between two textile layers, preferably made of the same material and may also have a powdered adsorbent added to them. In the examples many types of adsorption are illustrated. In Example 3, a mass of nylon- 6 fibrils is used to adsorb phenol from aqueous solution. In Example 4, nylon-6 fibrils and polyethylene terephthalate fibrils and fibrils composed of a copolymer of hexamethylenediamonium adipate and hexamethylene diammonium monopotassium 5-sulpho-isophthalate are shown to be able to adsorb acid, basic, direct and disperse dyes. In Example 6 fibrils of a copolymer of nylon 6, nylon 66 and nylon 612 are used to remove colon bacilli from aqueous medium, and also to remove L-glutamin fermenting cells. In Example 7, fibrils of nylon 6, polyethylene terephthalate, polypropylene and polystyrene are shown to be able to remove oil from water. In Example 8, nylon 6 microfibrils to which powdered activated carbon, diatomaceous earth or activated terra alba has been added are shown to be able to adsorb phenol from aqueous medium to a greater extent than the simple additive adsorption of the components. In Example 9 polypropylene fibrils containing activated carbon or nitrohumic acid are shown to be able to adsorb simultaneously copper sulphate and vacuum pump oil from aqueous medium. In Example 10 a styrene-butadiene rubber latex, of mean particle diameter 0À2 Á, and paraffin are removed from water by a structure containing polypropylene microfibrils. In Example 11 nylon-6 fibrils with added activated carbon are shown to be able to remove chlorine from aqueous solution, the adsorption being greater than the simple, added, adsorption of the components. Example 5 shows that microfibrils of nylon-6, polyethylene terephthalate, polypropylene and polystyrene are able to adsorb H 2 S and SO 2 + SO from the gas phase.
Patent GB-688175-A (GB)
Title: Improvements in high-inductance loop antennas
IPC: H01Q7/00
Filed: 1951-07-26
Abstract: 688,175. Aerials; radio receiving circuits. RADIO CORPORATION OF AMERICA. July 26, 1951 [Aug. 3, 1950], No. 17755/51. Classes 40 (v) and 40 (vii). A high inductance aerial for the reception of radio waves, comprises, in combination, an elongated ferro-magnetic core and an antenna coil extending over a small section of the length of the core near one end. The aerial is stated to combine the advantages of small size, high sensitivity, and satisfactory response over a wide band. For tuning over a band of, say, 600 to 1150 kc./sec., the core may be a rod 10 seven inches long and a quarter of an inch diameter. The coil 11 may be a winding of 104 turns, the length of the coil being five-eighths of an inch and the centre of the coil approximately one inch from one end of the core. As shown, the aerial may be incorporated in a standard superheterodyne receiver circuit and tuned over the frequency band by variable condenser 36 ganged with the oscillator tuning condenser 30. Tracking at the low frequency end of the tuning range can be achieved by moving the coil bodily relative to the core, only a small movement being necessary. The core 10, with the aerial coil 11 mounted thereon and secured by means of sealing wax or other binding material after the tracking adjustment has been made, may be mounted inside a radio receiver by means of brackets of non-magnetic material and associated rubber grommets, Fig. 4 (not shown). Reference has been directed by the Comptroller to Specification 522,492.
Patent GB-126091-A (GB)
Title: Improvements in Detachable Wire Spoked Wheel.
Inventor: BUDD EDWARD GOWEN
IPC: B60B3/18
Filed: 1917-12-03
Abstract: 126,091. Budd, E. G., and Ledwinka, J. Dec. 3, 1917. Locking nuts for securing detachable wheels on permanent hubs. In the form shown in Fig. 1, the nut 38 carries a plate 39 having a fluted face which is pressed into engagement with the fluted end of the hub 8 by a, spring. Similarly, the plate may engage the end of a live axle. Fig. 12 shows a modification in which a pawl 131 pivoted to the nut 122 has one end normally pressed into engagement with ratchet, teeth 133 on the end of the hub by a button 134 actuated by a spring 135. The button may be pressed inwardly to free the nut by means of a projection on the spanner, or otherwise.
Patent GB-863609-A (GB)
Title: Improvements in or related to textile material test piece carriers for laboratory dyeing apparatus
IPC: D06B23/10
Filed: 1957-04-04
Abstract: <PICT:0863609/IV(c)/1> A carrier for holding textile material test pieces during a dyeing operation comprises a rod 4 mounting a wire spiral holder 1 on which the test pieces may be threaded.  The carrier may be used by hand, or with apparatus as described in Specification 863,608.
Patent GB-1004806-A (GB)
Title: A tensioning device for transmission belts and the like
IPC: F16H7/08
Filed: 1964-04-30
Abstract: 1,004,806. Belt tensioning. MASCHINENFABRIK FAHR A.G. April 30, 1964 [May 27, 1963], No. 17958/64. Heading F2Q. A belt tensioning pulley 9 is carried by an arm 5 which is adjustably supported on a frame 2 by a mounting comprising inter-engaging frusto-conical members 1, 6 which are clamped together by a bolt 4. The member 1 is secured to the frame 2 and has a screw-threaded bore 3 into which the bolt 4 screws. The member 6 is secured to the arm 5 and has a central hole 7 through which the bolt 4 passes freely. A collar 8 on the bolt 4 facilitates disengagement of the members 1, 6 when the bolt 4 is loosened.
Patent GB-724868-A (GB)
Title: Apparatus for delivering metered shots of molten metal for castings
IPC: B22D17/30
Filed: 1953-06-29
Abstract: 724,868. Casting-machines. DOW CHEMICAL CO. June 29, 1953 [July 30, 1952], No. 18007/53. Class 83 (1). Apparatus for delivering accurately metered shots of molten metal to a casting apparatus comprises a vessel 1, a first valve 13 therein and operable to start and stop the flow of metal, a conduit 10 having one end below the level of molten metal in the vessel, a trap at the other end for maintaining the conduit filled with molten metal when the first valve is closed, said trap having a downwardly directed discharge opening, a pipe conveying an inert gas to a point between the trap and discharge opening and a valve 27 which may be quickly opened and closed in the gas supply, a by-pass 28 and a third valve 29 regulating the flow of gas therein, a timer 31 controlling the length of time the valve 13 remains open, and a delay means 30 which momentarily opens said second valve 27 after the first valve closes. Opening of the valve 27 after closure of the valve 13 causes a sudden flow of gas to empty the trap 18, Fig. 1, or 41, Fig. 2, back to the level 58, and leave the discharge orifice 21 or 54 clear. The by-pass valve 29 is adjusted to maintain a small, continuous flow of gas to prevent air reaching the metal level 58 when flow of molten metal through the conduit is stopped. The conduit 10 and traps 18, 41 are provided with thermal insulation 55 carrying electric resistance heating elements 56. The apparatus is shown as applied to a die-casting mould 35, 36 and a protective gas such as SO 2  may be supplied through a pipe 40 to protect readily-oxidizable metal in and on the way to the pressure cylinder.
Patent GB-556411-A (GB)
Title: A combined kettle and pannikin
IPC: A47J36/00
Filed: 1942-12-21
Abstract: 556,411. Kettles. PRITCHARD, M. A. Dec. 21, 1942, No. 18093. [Class 66] A small pan 2 provided with an external mouth rim is supported by it in the top opening of a kettle. The pan has a heat-insulating handle 4 and the kettle lid, which also fits the pan, a knob 3, also of heat-insulating material. Specifications 26893/07, 28068/07 and 309,263, [all in Class 66], are referred to.
Patent GB-1547714-A (GB)
Title: Electric switch
IPC: H01H19/62
Filed: 1977-04-29
Abstract: Said contact arrangement contains moving contact springs (11, 12, 13, 14; 11', 12', 13', 14') in two contact spring units in which the contact springs are located essentially at the same level. Said contact arrangement furthermore contains stationary contact segments (31, 32, 33, 34; 31', 32', 33', 34') in two contact segment units, as well as a contact element in the form of a camshaft (71) between the two contact spring units. The ends of the moving contact springs (11, 12, 13, 14; 11', 12', 13', 14') in this case project into a chamber which is bounded by the two contact segment units. Such a contact arrangement represents a miniaturised spring group and is used, for example, in telephony, and is suitable for installation on printed-circuit boards. <IMAGE>