baber/WOPTO huggingface dataset:
Patent GB-975259-A (GB)
Title: Improvements in and relating to fluid pressure braking systems
Inventor: CHOWINGS LESLIE CYRIL
IPC: B60T13/24
Filed: 1961-03-08
Abstract: 975,259. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. March 8, 1962 [March 8, 1961], No. 8534/61. Heading F2F. The fluid pressure braking system of the present invention is as in Specification 975,260, the system also being provided with a second valve 7 operating a piston 27a of a second servo-unit, the second valve 7 and servo-unit being in tandem with the first valve 6 and servo-unit. The valves 6, 7 are each provided with only one spring-loaded valve disc which normally isolates the working chambers of the valves from the atmosphere but which, when braking has been initiated is unseated by and seals a tubular extension of the diaphragm. The valves 6, 7 are supplied by separate vacuum systems. Valve 6 is mounted for reciprocation so that a member secured to its casing actuates valve 7. The chamber of servo-units 5 is divided so that pistons 26a, 27a may be actuated together, or if failure occurs, singly. In a modification (Fig. 6, not shown) the valves 6, 7 are mounted side by side in the first master cylinder casing so that, on the engagement of a master cylinder piston tappet with a plunger 53, the valves are actuated through a crossbar 52. In a further modification (Fig. 7) a tandem master cylinder 57 is included which drives two further master cylinders 65, 66, the servo-pistons 60, 61 of which work in opposite directions in a divided cylinder 62. In the construction of Fig. 8 (not shown) a single piston master cylinder provides pressurized fluid to only one of the pair of servo-assisted master cylinders, the other being solely servooperated. The valves 6, 7 may be actuated directly by a pedal control to the exclusion of the first master cylinder (Fig. 9, not shown), the servo-unit operating two separate master cylinders.
Patent GB-398880-A (GB)
Title: Improvements in or relating to liquid flow operated safety or indicating devices
IPC: G01P13/00
Filed: 1932-03-23
Abstract: 398,880. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and EWEN, H. A., Gray Walls, Priest Lane, Shenfield, Essex. March 23, 1932, No. 8680. [Class 39 (i).] A safety or indicating device, applicable for use in connection with liquid cooled thermionic valves, and operated by failure of liquid flow, comprises a pipe 4 leading into a chamber having, a weir 2 or equivalent, and a plate 6 which descends when flow ceases. A stem 7 carries an adjustable nut 10 adapted to move a spring blade 12 to close an electric circuit, and a pointer 14 co-operating with a fixed scale. A single casing may contain several devices separated by partitions, and a temperatureoperated switch.
Patent GB-341342-A (GB)
Title: Improvements in or relating to dyeing and like machines
IPC: D06B5/00
Filed: 1930-03-20
Abstract: Vats and like liquid receptacles, raising and lowering; dipping apparatus.-In a dyeing machine, of the kind in which the material to be treated is contained in a box or cage with a false or perforated bottom adapted to be raised out of a treating vat, and also traversed laterally and tipped, the box or cage is raised and lowered by means of chains or cables as shown.  Two pulleys 26, 27 are mounted loosely on a main driving shaft 28 with a clutch member 30 enabling either of the pulleys to be driven at will. The pulley 26 through belt 12 and gearing 13-15 actuates chains 5 to raise or lower the box 3, whilst the pulley 27 through the belt 25, gearing 23, 24 and ropes 21 traverses <PICT:0341342/IV/1> the carriage 17 on rails 18 across the vat 2.  The box is carried by arms 7, pivoted at 6, and retained vertically by pivoted brackets 37.  To tip the box when it is being raised from the vat, the rod 38x is retained between brackets 39 by removable pins, so that the box is pivotally carried thereby.  On raising, the pivoted lever 38 bears upon the bracket 37 and turns it out of the path of the arm 7 so that the box can turn about pivot 6, and empty its goods.  The bottom is formed in two portions 31, 32 carried by nuts 35 and opened or closed by rotating an oppositely threaded screwed member 34; or alternatively it may be operated by suitable links.  The vat carries a door at either end, hinged thereto and held open by balance weights.
Patent GB-512960-A (GB)
Title: Improvements in the manufacture of nitrocellulose products
IPC: D01F2/26
Filed: 1938-03-24
Abstract: 512,960. Artificial filaments, films &c. REICHEL, F. H., and CRAVER, A. E. March 24, 1938, No. 9053. [Class 2 (ii)] Elongate articles such as filaments, films, tubing and fabrics, made of nitrocellulose are treated with a swelling agent for the nitrocellulose before being denitrated by passage through a dilute aqueous solution of a reducing agent. The swelling agent may be a non- solvent for nitrocellulose, such as. ethyl alcohol or diethylene glycol. Alternatively a solvent for nitrocellulose such as methyl alcohol, acetone or butyl acetate may be used in admixture with sufficient non-solvent diluent, such as water, glycerine or ethylene glycol to ensure that the mixture will swell but not dissolve the nitrocellulose ; in particular, aqueous solutions of mono-ethanolamine, acetone, dioxan, " methyl cellosolve," morpholine, acetic acid or methyl alcohol may be used. The treatment of the nitrocellulose article with a swelling agent may be a separate operation or, in the case of wet-spinning, the swelling agent may be added to the coagulating bath or even constitute the. coagulating bath. The articles, after coagulation and treatment with a swelling agent but before denitration, may be stretched. Reducing agents mentioned are water-soluble alkali hydrosulphides such as calcium, sodium, potassium or ammonium hydrosulphide, ferrous chloride, stannous chloride and formaldehyde. A mixture of a hydrosulphide and another reducing agent may be employed, while the denitrating solution may contain a swelling agent for the nitrocellulose and also a catalyst for the denitration, such as a small amount of free ammonia or sodium sulphide. In examples, wet-spun filaments and tubes produced in a coagulating bath containing a swelling agent and cast films treated with a swelling agent are denitrated with a solution containing sodium hydrosulphide and sodium polysulphide.
Patent GB-417259-A (GB)
Title: Improved collar stud
IPC: A44B3/00
Filed: 1933-03-25
Abstract: 417,259. Studs; necktie retainers. TAYLOR, C. E. W., TAYLOR, C. O. L., and LUCKING, G. E., (trading as TAYLOR & CO., G.), 16, Well Street, Jewin Street, London. March 25, 1933, No. 9087. [Class 43.] A back collar stud having a base a of concave shape to fit the neck is provided with an upstanding ridge b to engage the stud opening in the neck band of a shirt and prevent rotation of the stud. The stud is completed by a shank e terminating in a head k of a shape having the major axis at right angles to the stud opening in the neck band, the lower portion of the head being adapted to fit over the band of a necktie. The shank e may be cylindrical or it may be of flattened shape engaged with the vertical opening on the collar.
Patent GB-1455163-A (GB)
Title: Removal of sulphur dioxide from gases
IPC: B01D53/77
Filed: 1974-02-28
Abstract: 1455163 Scrubbing solutions DRAVO CORP 28 Feb 1974 [8 March 1973] 9170/74 Heading C1A Sulphur dioxide is removed from the combusion gases of sulphur-rich fuels, by wet scrubbing with an aqueous solution of calcium and magnesium "oxides" plus a recycled portion of the aqueous solution that had previously been passed through the scrubber and clarified; the aqueous scrubbing solution contains 2-10% by weight of MgO based on the total calcium + magnesium oxide weight. The mixture of CaO and MgO may be prepared by simple calculated admixture of limes obtained from dolomitic stone and pure calcitic limestones, by the calcining of a limestone. containing the required percentage of magnesium, or by the calcining of a calculated mixture of limestone and dolomitic stone.
Patent GB-128172-A (GB)
Title: Improvements in Machines for Making Hollow Glass Ware.
Inventor: GRAHAM JOSEPH BOLDEN
IPC: C03B9/30
Filed: 1918-06-12
Abstract: 128,172. Graham, J. B. June 12, 1918. Delivering molten metal; blowing.-Relates to rotary-table glass-blowing machines of the kind described in Specification 127,995, and consists of means for adjusting the height of the machine relativelv to the outlet of molten metal for charging the parison mould and to mechanism for regulating the severing of the charge. The machine is mounted on a base 50, Fig. 1, having wheels 51 which run on rails 52. The rails are braced together and are mounted on four posts 55 which are threaded to engage sockets 56 and can thus be raised and lowered by rotating the sockets. Simultaneous movement of the posts is effected by a chain 58 passing round sprocket wheels fixed to the sockets, one of the sprocket wheels being actuated through gearing by a handle 59 on a motor. Fig. 3 shows the glassdelivery device. Molten metal flowing from an extension 200 of the furnace is received into a divided receptacle 201 provided with a cut-off blade 202. The blade and parts of the receptacle are moved by cams on a vertical shaft 220 which is actuated through universal joints and gearing by the motor 85 which drives the table of the machine. One of the gear wheels is connected by a feather to a longitudinal shaft, but is movable thereon so that the machine can be moved without affecting the gear. A handoperated clutch allows the vertical shaft 220 to be disconnected when required, and a handle is also provided to allow the receptacle to be opened if the machine is stopped to allow the free passage of the molten metal.
Patent GB-101278-A (GB)
Title: Improvements in or connected with Telegraph Transmitting Apparatus.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: H04L25/03
Filed: 1915-11-04
Abstract: 101,278. Jackson, W. J. Mellersh-, (Western Union Telegraph Co). Nov. 4, 1915. Polarized relays; transmitting systems and apparatus.-A transmitting - apparatus comprises a manually or automatically operated key and a polarized relay the armature of which is initially operated by the discharge of a condenser. In the arrangement shown, the contacts 18, 19 of a key T are connected to one pole of a current source 17 through resistances 21, 23, the other pole of the source 17 being connected to the key T. The coils 24 of a polarized relay E are connected in a branch circuit 25 containing a resistance 26 and a condenser 27. When the key T is in the position shown, the armature of the relay E is moved to the position shown and the condenser 27 is charged. When the arm of the key T leaves the contact 19, the condenser 27 is discharged to move the relay armature to its second position, and when the arm of the key T engages the contact 18, the condenser 27 is charged in the opposite sense and the armature of the relay E is held in its second position.
Patent GB-701881-A (GB)
Title: Improvements in and relating to wheel slip detecting devices for electrically drivenvehicles
IPC: B60L3/10
Filed: 1952-04-10
Abstract: 701,881. Control of several motors. BRITISH THOMSON-HOUSTON CO., Ltd. April 10, 1952 [April 13, 1951], No. 9254/52. Class 38(3) In a system for readily detecting wheel-slip when electrically-driven vehicles are operated at high speeds a relay coil is connected across normally equi-potential points in the circuits of two of the traction motors, and biasing means responsive to the speed of the vehicle are provided for recalibrating the relay coil. If the traction motors are of the series type the wheel-slip detection means may comprise a pair of relay coils connected across the armature-field junction points of a pair of motors, a resistor being connected between one side of the traction generator and the mid-point of the relay coils to supply a bias voltage responsive to the speed of the vehicle, Fig. 1 (not shown). The indicating means may further comprise a relay having a coil connected across normally equipotential points in the motor circuits, and a second coil energized in accordance with the motor speed. This second coil may be supplied in accordance with the traction generator voltage, Fig. 2 (not shown), or it may be energized through a rectifier from a tachometer generator driven by the vehicle, Fig. 3 (not shown). In the Figure, a generator 1 supplies traction motors 29-32 having series field windings 33-36 and adapted for series-parallel control with field-weakening provided by resistors 40. Wheel-slip relays 42-45 each have a field-drop differential coil 46 and a potential bias coil 47, bridging resistors 48 being used for adjusting the sensitivity of the relays. The coils 47 are energized through resistor 54 which is calibrated to suit different modes of operation of the traction motors, relay 56 being energized during the parallel-connection and relay 58 being responsive to field shunting. The relays 42-45 have contacts in the circuit of indicating lamp 60, or are connected in other suitable protective circuits. When the traction motors are connected in series-pairs 29, 30, and 31, 32, the wheel slip relays 43, 44, alone are effective, all the relays are effective, however, for parallel operation. The coils 46 are disconnected during changes of the motor-connections. Specification 563,177 is referred to.
Patent GB-769206-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/30
Filed: 1954-03-30
Abstract: 769,206. Helicopters. BREWER, W. L. E. March 21, 1955 [March 30, 1954 ; Dec. 13, 1954]; Nos. 9271/54 and 36016/54. Class 4. A helicopter rotor comprising a hub and radially disposed blades which are connected to the hub by means which permit flapping of the blades as well as pitch angle adjustment thereof, has provision for adjusting the pitch of the blades to a selected flight condition and means whereby in the selected flight condition flapping movement of the blades due to any tendency of external forces to disturb the flight condition causes the prevailing pitch of the blades to be adjusted automatically until the flight condition is stabilized. The rotor comprises a hollow hub member 1 which carries blocks 3 having blades 2<SP>1</SP>, 2<SP>11</SP>, 2<SP>111</SP> pivotally mounted therein for pitch changing movement, each block being mounted on the hub 1 by pivots 4 to permit flapping movements of the blades. Each block 3 carries a horn 8 secured by a link 10 to a plate 5 secured by a universal joint (not shown) to a column 19 mounted for universal freedom of movement on a gimbal 20. Rods 7 fast with the plate 5 support a star plate 6 with freedom for axial movement so that the two plates tilt in unison for cyclic or differential pitch change and plate 6 may be moved axially with respect to plate 5 for collective pitch change by a collective pitch control rod 21 passing through the centre of the column 19. The root end 18 of each blade carries an arm 17 connected by a link 16 to a further arm 15 pivotally mounted by a shaft 13 in a block 14 fast with the block 3. The shaft 13 is fast with one end of a link 11, each connected at its other end with one arm of the star plate 6. Rocking of the two plates 5 and 6 causes rocking of the links 11 with consequent change of pitch of the appropriate blades. When the fuselage is displaced, say, nose down, the advancing blade 2<SP>1</SP> flaps up relative to the rotor column and the retreating blades 2<SP>11</SP> and 2<SP>111</SP> flap down. As a result, and through the arm 8 and links 10, the plate 5 is tilted to the left and simultaneously the star-plate 6 is carried to the left causing the pitch control rods 11 to transmit pitch adjustment to the respective blades in the appropriate sense continuously until the aircraft is restored to its normal flight condition.
Patent GB-834934-A (GB)
Title: Process for the manufacture of magnesium alumino-silicate for medical uses
IPC: A61K33/12
Filed: 1957-03-21
Abstract: A magnesium alumino silicate, of formula MgO.Al2O3.2SiO2.2H2O, is prepared by mixin an aqueous sodium aluminate solution, having an Al2O3/Na2O ratio of 1 : 1 to 1 : 3 and an alumina concentration of 1.7% to 6.9%, with an aqueous sodium silicate solution, having a silica concentration of 2% to 8%, in a mol. ratio more than 1 : 2 of Al2O3 to SiO2, to form a reaction mixture containing sodium alumino silicate, and forming magnesium aluminosilicate from this mixture by adding magnesium hydroxide.  The product is washed with an aqueous solution of aluminium sulphate or a mineral acid, further washed with water, and dried.  The magnesium hydroxide may be formed in situ by adding a magnesium salt to the reaction mixture.  In an example, magnesium chloride is added to the reaction mixture, and, after washing, the product is dried in two stages, firstly below 100 DEG C. and then at 250 DEG  C.  The product has antiacid properties.
Patent GB-580132-A (GB)
Title: Improvements in filters for oil or liquids
IPC: B01D29/15
Filed: 1944-05-15
Abstract: 580,132. Filters. TECALEMIT, Ltd., and LE CLAIR, C. C. S. May 15, 1944, No. 9286. [Class 46] A filter for liquids comprises a pervious central supporting frame 11 surrounded by one or more layers 10 of felt or fabric filtering material which projects beyond the ends of the frame, cement or the equivalent 16 being applied to the end parts to a depth sufficient to ensure adhesion of the cement not only to the edges of the filtering material but also to the frame 11. The cement may comprise an air-drying or thermalhardening varnish to which a plasticiser may be added in accordance with the degree of hardness required. A hard-setting cement may be applied of sufficient depth to adhere to the frame 11, followed by a soft-setting cement to provide relatively soft end faces for engagement with the pressure plates 7, 8. A layer 17 of linen as described in Specification 580,133 may be provided around the frame 11 and reinforcing felt strips 12, 13 may be provided between the layer 17 and the layer 10.
Patent GB-550261-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D13/04
Filed: 1941-07-23
Abstract: 550,261. Friction clutches. BURMAN & SONS, Ltd., BRIGGS, T. H., and BRIGGS, W. H. July 23, 1941, No. 9312. [Class 80 (ii)] A multi-plate friction clutch comprises the combination of a spring-loaded clutch assembly adapted to be controlled by the user, a second coaxially arranged clutch assembly and means for controlling the second clutch assembly in response to angular movements of the driven member of the first clutch assembly relative to an adjacent part of the second clutch assembly. A sprocket wheel b transmits motion to a member a into which projects a hollow shaft c to which is secured a driven member d of the clutch. This member is splined at e for the engagement of clutch plates f, and the member a is notched at g to receive clutch plates h. The plates f, h are adapted to be acted upon by a pressure plate j slidable in notches k in the member d and adapted to be moved by a short ring m having a face cam n adapted to co-operate with a cam o on a sleeve p rotatably but non- slidably mounted on the shaft c and having driving connection with the driven member r of another clutch assembly. This comprises plates s splined to member r and plates t engaging the notches in the member a. This clutch is normally engaged by springs x acting upon a pressure plate v and may be actuated by a rod w passing through the shaft c. The clutch s, t is normally in action, but when increased resistance is encountered the relative motion of the parts r, m causes axial movement of the plate j and the engagement of the other clutch.
Patent GB-1112599-A (GB)
Title: Improvements relating to circular knitting machines
IPC: G06K7/10
Filed: 1966-03-03
Abstract: 1,112,599. Knitting-machines. FRANZ MORAT G.m.b.H. 3 March, 1966 [6 March, 1965; 31 March, 1965], No. 9384/66. Heading D1C. [Also in Division G3] Needle selection is achieved at each station on a multifeed circular machine by the provision of jacks 3 adapted to fulcrum in the cylinder tricks about their lower ends 3a and which are influenced by magnetic means to deflect them into or out of operative paths of controlling cams such that their butts 3' are caused to engage or disengage a raising cam 20, Fig.- 1, which raises the selected jacks and consequetly the corresponding needles 1 so that the latter are brought into engagement with their knitting cams. As illustrated in Fig. I, the needle cam track 6 has interposed a pivotable cam 15 which can be used to bring all of the needles into the knitting path. Needle selection by the jack occurs before the rising cam part 7, 7' and raises the needles so that their butts are landed on this cam part which further raises them to tuck height. A second pivoted cam 11 determines : whether the needles remain at this height or are raised to clear and knit under stitch cams 13 and 10. The jacks 3 are normally urged outwardly by springs 19 to engage the jack cam 20 as their butts pass along their guide channel 5, 5', 5". Prior to ,their engaging the raising cam 20 a spring rod 21 is influenced by, a maget to engage behind or in front of a cam 8, Fig. 15, which deflects or restricts the spring rods into or out of engagement with the jacks so as to move the jacks and their butts out of or permit them to continue in contact with their cams to effect the selection. The magnets are controlled, for - selection purposes in influencing the spring rods from a film photoelectrically scanned in a manner similar to that described in Specification 967818. The tracks on the film correspond to the number of knitting stations so that selection can be made at each feed. In addition a comparison is made between the machine speed and film speed to ensure synchronisation.
Patent GB-1128102-A (GB)
Title: Improvements in or relating to the taper-rolling of metals
Inventor: FIELDING ROBERT
IPC: B21H7/00
Filed: 1966-03-04
Abstract: 1,128,102. Rolling. ENGLISH STEEL CORP. Ltd. 28 Feb., 1967 [4 March, 1966], No. 9490/66. Heading B3M. A length of metal, suitable for forming into a leaf spring, is pulled under tension, together with tapered formers positioned alongside the length, between a pair of idle rolls, such that the length is deformed by the rolls into a tapered shape corresponding to the formers. The length 7, and a pair of formers 16, are mounted on a carriage 10 which is hydraulically traversed over a base 1. An hydraulic g@pper 17 holds the length fixed relative to the chick ends of the formers, the carriage 10 moving from the left to the right during a rolling step. A pair of guide rollers 44, Fig. 2, act on opposite edges of the length, the rollers being mounted in C- shaped supports through which the formers 16 pass. The carriage can automatically perform up to 12 passes on a length, the longitudinal travel of the carriage being variable for different passes, if desired. An axially fixed beam 19, provided with 12 longitudinal slots in which stops can be adjustably fitted is automatically indexed after each pass. The final spacing of the movable, upper, roll 4 from the fixed roll 3 is similarly automatically adjustable for each pass. Thus tapered profiles varying slightly from that of the formers can be produced (Figs. 17A to 17H, not shown). The movement of the carriage can be controlled by means of ultrasonic, optical, or magnetic sensors positioned near the roll gap for sensing the free end of the length 7. A four-high roll arrangement may replace the two-high arrangement shown.
Patent GB-1476711-A (GB)
Title: Perfuming ingredients
IPC: C11B9/00
Filed: 1975-03-07
Abstract: 1476711 Perfume compositions FIRMENICH SA 7 March 1975 [7 March 1974] 9497/ 75 Heading A5B A perfume composition comprises a compound having the formula wherein one of the symbols R represents a methyl group and the other a methyl or ethyl group or H and R<SP>1</SP> represents H or a C 1 -C 5  alkyl group together with at least one perfuming co-ingredient.