baber/WOPTO huggingface dataset:
Patent GB-1532396-A (GB)
Title: Method and apparatus for making an end cover sheet for a coil of steel strip and a coil packing including the end cover sheet
IPC: B21C47/24
Filed: 1977-03-15
Abstract: 1532396 Making metal covers HOOGOVENS IJMUIDEN BV 15 March 1977 [18 March 1976] 10956/77 Heading B3A [Also in Division B8] An end cover for a coil of steel strip is formed from an apertured disc by slitting the periphery radially, and turning up the resulting tabs 22 to form a flange 23. Fig. 1 shows apparatus for doing this, comprising table 2 with clamps 3 for gripping the disc at its aperture, with outrigged ball-race supports 10. The table is rotated stepwise by pneumatic motor 4. A pneumatically operated shear 5, and clamp and bender 7 are radially adjustable by handle 9 to suit the disc diameter. The pneumatic drives are interconnected so that shearing and bending take place while the table is stationary. A pneumatic sensor 11 on the shear prevents operation in the absence of a disc, and a pneumatic sensor 12 on the bender stops the operation when an already bent up tab is offered to the bender.
Patent GB-906676-A (GB)
Title: Electric motor control systems
IPC: H02P7/30
Filed: 1960-03-29
Abstract: 906,676. Control of D.C. motors. BROOKHIRST IGRANIC Ltd. March 29, 1960 [April 6, 1959], No. 11026/60. Class 38 (3). [Also in Group XXXV] A reference voltage for controlling the speed of an electric motor M is developed across potentiometer SS so rendering transistors T1, T2 conductive, and causing a control winding CW of magnetic amplifier MA to be energized through transistor T3. Rectified voltage is then applied to armature A, and the motor is accelerated to a speed determined by the setting of potentiometer SS. If the armature current during acceleration exceeds a predetermined safe value, the voltage across resistor R11 causes Zener diode ZD2 to break down so reducing the reference voltage. A feedback voltage representing the armature voltage, is derived from resistors DR1, DR2 for comparison with the reference and current-limit voltages, the resultant being applied through comparator circuit CM and power amplifier PAM to control the magnetic amplifier MA. The maximum voltage obtainable by adjustment of potentiometer SS is determined by the setting of rheostat MS. Transistor T3 is protected from the inductive effect of winding CW by means of rectifier RCT-1 and diode ZD1. Currentlimiting during deceleration is provided by replacing the circuit elements RCT-2, ZD2 by the elements RCT-3, ZD3. The armature voltage at which current-limiting is initiated may be adjusted by potentiometer 72 whilst rheostat 74 adjusts the difference between the maximum value to which armature current increases at a given time and the current value at which limiting is initiated. The voltage gain of comparator circuit CM is adjusted by rheostat 26. In a modification, a tachometer generator is substituted for resistors DR1, DR2, and the armature voltage feedback connection, Fig. 2 (not shown). In another embodiment, the magnetic amplifier MA is replaced by a magnetic amplifier providing adjustable excitation for a Ward Leonard generator supplying the motor M, Fig. 3 (not shown). The system comprises a number of modular component circuits, only those elements adapted to be varied in value being connected externally of the modules. The modular circuits are enclosed in plastic material. Specifications 906,672, 906,673 and 906,674 are referred to.
Patent GB-740063-A (GB)
Title: Improvements relating to electrolytic aluminium furnaces
IPC: C25C3/16
Filed: 1954-04-15
Abstract: 740,063. Electrolytic production of aluminium. ELEKTROKEMISK AKTIESELSKAP. April 15, 1954 [April 16, 1953], No. 11114/54. Class 41. [Also in Group. XI] In an electrolytic furnace for the production of aluminium having a furnace pot lined with carbon 15 to which current is supplied through cathode conductors or irons 17 extending transversely to the sides of the furnace in contact with the carbon, the cathode conductors 17 have their central parts substantially horizontal and their end parts diverging downwardly so that the thickness of the carbon lining overlying the irons 17 is greater adjacent the sides of the furnace pot than in the central region of the furnace bottom. The irons 17 are smoothly curved longitudinally and lie in vertical planes with their portions adjacent the furnace sides diverging downwardly from the horizontal. The lower surface of the furnace pot is curved corresponding to the curve of the irons 17, and the side walls of the pot are at least in part outwardly inclined. The cathode irons 17 are parabolic with a degree of curvature less than is necessary to produce a uniform current distribution in the carbon lining over its surface when the lining is new but greater than that necessary to do so when the lining has been much used.
Patent GB-674066-A (GB)
Title: A tool holder or boring head
IPC: B23B29/034
Filed: 1949-04-27
Abstract: 674,066. Boring heads ; tool - holders. LUCAS, J. April 5, 1950 [April 27, 1949], No. 11125/49. Class 83 (iii). A boring-head or a tool-holder comprises a shank 2 having a socket 3 to receive the tail of a tool 5 or a carrier therefor, and set-screws 6, 7 in the head for engaging opposite sides of the tool &c. to adjust it angularly and laterally of the direction in which the cut is being made. The screws 6, 7 lock the tool against a convex edge 8 on the wall of the socket which may be closed by riveting, welding, or otherwise securing a pad on the open side thereof so as to closely house the tool. A clamping-screw, perpendicular to the screws 6, 7, is provided for the tool. In a modification, the socket 3 may be formed by milling or slotting and the wall thereof carrying the screw 6 formed separately to be secured in position by welding, riveting or other means.
Patent GB-1042121-A (GB)
Title: Improvements in and relating to bags of paper or like material with opening devices
IPC: B65D75/58
Filed: 1963-03-21
Abstract: 1,042,121. Bags with tearing devices. KORSNAS A.B. March 21, 1963 [March 24, 1962], No. 11217/63. Heading B8K. Tearing tongues 4, Fig. 6, are provided on the overlapping parts of the bottom flaps 5, 6 of a crossed bottom valve bag by making a cut 2, Fig. 1, in a hose-shaped member 1 from which the bag is formed. The cut, which may also be right-angled or curved, is produced on a hoseforming machine or base forming machine and is located so that the tongues 4 are produced when the hose-shaped member is folded to form flaps 3, 3a as in Fig. 3. A valve hose is then inserted and the bottom flaps 5, 6 folded over as shown in Fig. 6. The tearing zone may have perforations to facilitate its opening and the flaps 5, 6 may have reinforcing strips. A bottom cover sheet applied over the closed flaps 5, 6 may be perforated and may allow the tongues 4 to project to facilitate gripping thereof.
Patent GB-1442572-A (GB)
Title: Thread storage feeder for textile machines
IPC: D04B15/48
Filed: 1974-03-13
Abstract: 1442572 Knitting machines IRO AB 13 March 1974 [15 March 1973] 11235/74 Heading D1C A thread storage feeder for textile, e.g. knitting, machines, which is capable of operating in at least a positive-feed mode and which may be of the forms described in the Specification of 1442571, comprises a winding shaft 12 operative to form a thread reservoir on a rotary or stationary storage drum, the shaft being coupled, on the engagement of a clutch 15, 17, to a main drive transmission member 13 and, on disengagement of the clutch as shown, being rotatable by means of an auxiliary drive means 21 or 23 in order initially to set up or subsequently to replenish the thread reservoir. A spring 22 normally biasses the toothed clutch parts 15, 17 into engagement. The transmission members 13 at the respective feeds of a knitting machine are driven by a common perforated belt. The application of the auxiliary drive means-a manual crank 21 or portable electric motor 23-to a cover part rigid with the shaft 12 serves to disengage the clutch and accordingly each storage feeder may have its reservoir replenished independently of the others.
Patent GB-1071854-A (GB)
Title: Improvements in or relating to radar systems
Inventor: BRANDON PERCY SAMUEL
IPC: H01Q3/22
Filed: 1963-03-21
Abstract: 1,071,854. Radar. MARCONI CO. Ltd. Feb. 28, 1964 [March 21, 1963], No. 11290/63. Heading H4D. Relates to a radar in which angular scanning in azimuth or elevation is effected by variation of transmitted frequency. According to the invention the receiver includes a first dispersive network producing simultaneously at its output signals corresponding to echo signals from targets at the same range, a range-selective time gate connected to the output of the first dispersive network, and a second dispersive network fed from that gate to give time spaced output signals; the latter may be displayed on a cathode-ray tube the time base of which corresponds to the maximum time over which output signals may be spaced. The time position of an output signal corresponds to target bearing (or elevation). In the embodiment the transmission is a ten microsecond pulse linearly frequency modulated over a rising range of 100 Mc/s. and the first dispersive network provides a differential delay falling linearly by ten microseconds over the same frequency range. Echo signals from all targets at the same range give rise to very short, e.g. 0À1 microsecond, signals simultaneously which after passing through the gate are separated in time by an amount proportional to bearing by the second dispersive network which has a delay/ frequency characteristic inverse to that of the first dispersive network.
Patent GB-822798-A (GB)
Title: Improvements in or relating to umbrella stick assemblies
IPC: A45B9/02
Filed: 1958-04-09
Abstract: 822,798. Umbrellas. WUSTER, H. April 9, 1958 [Feb. 5, 1958], No. 11299/58. Class 134 In an umbrella stick assembly, a fitting sleeve carried by the umbrella handle is detachably fixed to the stick of the umbrella by means of a resilient locking nose accommodated in the stick and extending into the fitting sleeve. This locking nose is formed on a spring which carries a second nose adapted to lock the runner of the umbrella in its lower position, the two noses being formed on separate limbs or at opposite ends of the spring. The end portion of the stick and the fitting sleeve are of non-circular cross-sectional shape so as to be secured against rotation relative to one another. As shown, a sleeve 2, Fig. 1, formed with a longitudinal groove 7 corresponding to a groove in the lower part of the stick 3, is secured, preferably by glueing, in the handle 1. The lower stick spring 4 is provided with a nose 5 for engaging the runner and a nose 6 which engages in apertures in the sleeve 2 and stick 3. An extension 4c on the spring may be actuated by means of a suitable tool passing through an aperture 8 in the stick to release the locking nose 6. To prevent axial movement between the stick and the handle the lower end of the stck 3 is held with an initial stress aaginst a resilient member 10 supported in the sleeve 2 by inturned lugs 2b. A handle for use in a collapsable umbrella comprises sheet metal pressings 1a, 1b 1c, Fig. 4, a plastic core member 11 and a sleeve 2 of polygonal, preferably hexagonal, cross-section in which the stick 3 of similar cross-section is located. In an alternative embodiment the sleeve 2 is replaced by an extension 11a, Fig. 9, of the core member. One or more resilient inserts 16 which may be of rubber, may be provided in recesses in the extension 11a to prevent radial movement between the handle and stick.
Patent GB-311527-A (GB)
Title: Improvements in direction indicator casings for road vehicles
IPC: B60Q1/34
Filed: 1928-04-17
Abstract: 311,527. Johnson, A. R. P. April 17, 192,8. Road-traffic signals on vehicles.-A rear signal casing 1 for a motor-vehicle, comprises a series of compartments housing lamps 6, 7 for direction signals 20, 21, a lamp 13 for stop signal 22, and a tail lamp 5 illuminating a sheet 36 of semiopaque red celluloid which is shaped as shown and secured, together with the other celluloid sheets 32 and the front plate 18, bv means of studs 15 having end portions engaged by screws 31, and by nuts 15‹ for securing the casing to the support X. The tail-light compartment has grooves 8<x>, 9<x>, 10<x> and a rib 10 curved as shown to accommodate a celluloid strip 25 for illuminating the licence plate below. The three super. imposed sheets 32 may be coloured orange, black, and purple respectively as described in Specification 290,085.
Patent GB-502841-A (GB)
Title: Improvements in steamers for domestic and such-like purposes
IPC: A47J27/16
Filed: 1938-04-13
Abstract: 502,841. Steam cooking - apparatus ; sterilizing-chambers. CAMPBELL, R. F;, and O'FLANAGAN, J. April 13; 1938, No. 11332. [Classes 28 (i) and 81(i)] A steamer for cooking or sterilizing purposes comprises a water trough 8 extending partially over the area of the bottom of the container 1, a water-supply cistern 14 arranged at a level higher than that of the trough 8, and a float 21 in the trough to regulate the feed from the cistern to the trough. The float 21 is arranged also to regulate the supply of gas to a burner 9, so that, as the level in the trough 8 falls, the water feed thereto is increased and the gas supply to the burner is decreased. The water and gas control valves may be outside the container 1 and operated by links connected with the float, or they may be inside the container, the tapered plug bores of the two valves being co-axially arranged to be engaged by two plugs integrally connected in alignment, the float arm being directly connected to the plug spindle which is turned as the water level varies. A thermostatically controlled 'electric immersion heater 13 is arranged in the trough 8 which is preferably of conical form. The container 1 is surrounded by a lagged casing 3 from which it is separated by an air space 5. The cistern 14 is connected to the water main 15 and the water level is controlled by a ball-cock valve 16. Alternatively, the cistern may be refilled through an aperture 17 in the removable lid 18. The cistern is arranged in the rear upper corner of. the casing and is connected to the trough 8 by a pipe 19 having a capped downward extension 19<1> which serves as a drain and as a trap for solid matter., The steamer may work.at atmospheric pressure or above, the door, in the latter case, being connected by screw means to a hinge, whereby the door may, by adjustment of the screw means, be pressed tightly against its frame. when closed. A, screw or wedge fastening is provided for the side of the door remote from the hinge. If desired, the container 1 may be removed from the stand 32 and placed on an existing stove, range or other source of heat. The steamer may be heated by an oil burner or solely by electricity. A drain cock may be provided in the floor of the container and a relief valve 35 in the top. , A removable tray may be placed above the trough to prevent articles from falling therein.
Patent GB-891962-A (GB)
Title: Surgical dressings
IPC: A61F13/00
Filed: 1957-04-08
Abstract: Non-stick surgical dressings comprise a sterilized fabric made from smooth, continuous filaments of flexible non-toxic material. The fabric may be woven, knitted or formed from a series of warp threads superimposed on a series of weft threads and secured together at their points of intersection.  Preferably each yarn comprises between 15 and 40 mono-filaments and suggested, suitable materials are viscose rayon, acetate rayon, nylon and polyethylene terephthalate. Preferably the fabric is backed by an absorbent pad or forms an envelope enclosing such a pad and a composite dressing of this nature may be mounted on an adhesive backing.  If desired, the dressing may be medicated.  Specifications 792,277 and 891,963 are referred to.
Patent GB-399574-A (GB)
Title: Improvements in and relating to coin-freed apparatus for playing a game of skill
IPC: G07F17/34
Filed: 1932-04-21
Abstract: 399,574. Coin-freed amusement apparatus. SMITH, G., 34, Clieveden Road, Thorpe Bay, Essex, and LENNARDS, W., 175, Railway Approach, Shepherd's Bush, London. April 21, 1932, No. 11431. Divided on 390,180. [Class 27.] Prize-delivery mechanism.-Relates to apparatus of the kind having wheels a, Fig. 2, which are set in rotation and, if stopped in winning positions with certain peripheral markings in alignment, allow prizedelivery slides to move and delivery coins to the player. The slides are not freed until a time-controlled member 84 returns to an initial position. According to the invention, the member 84 is prevented from fully returning until a coin to purchase the prizes is inserted in a shoot 99. This coin hits the arm 98 of a lever 94 pivoted at 95 and tilts this lever to cause one leg 96 of its other U-shaped end to lift a detent 92 preventing the return of the lever. The second leg-97 of the U-shaped end constitutes a counterweight for the lever 94 and a stop to limit its movement in one direction. A second detent 100 co-operates with the detent 92 to prevent the latter from returning to its locking position before the time-controlled member 84 has passed it. Specification 391,169 is referred to.
Patent GB-238279-A (GB)
Title: Improvements in or relating to protectors for fencing, walls and other suitable surfaces
IPC: E04H17/00
Filed: 1924-05-09
Abstract: 238,279. Fenemore, A. May 9, 1924. Spiked plates. - Spiked plates having two or more outwardly directed barbs, and an integral or separate securing means, are used for protecting walls, fences &c. from damage by cattle. Figs. 6 and 10 show typical examples. Reference has been directed by the Comptroller to Specifications 5976/88, [Class 44, Fastenings, Lock &c.], 5534/00; 19722/02; 8290/03, [Class 5, Agricultural appliances, Farmyard &c.], 28357/04, 35/10, and 203,030.
Patent GB-693865-A (GB)
Title: Water heater
IPC: F24H1/20
Filed: 1951-05-16
Abstract: 693,865. Water heaters. VAPOR HEATING CORPORATION. May 16, 1951 [Jan. 19, 1951], No. 11478/51. Class 64 (i) A water heater has an inner water jacket 30 surrounding a central heating chamber fired by a fuel burner 55 at one end, the inner peripheral wall of the jacket having fins 50a formed by axiallyspaced toothed rings 50, the teeth occupying most of the radial depth of the ring, and being preferably staggered in adjacent rings. Furthermore, the hot gases are projected past the toothed rings with a whirling vortex movement produced by a fan for combustion air. In the example shown, a second preheating water jacket 22 surrounds a space 86 forming a return flue for the hot gases leading to an uptake 87, and a further set of toothed rings 51 in the space 86 are attached to the outer periphery of the inner jacket 30. Water from the mains or returning from space-heating radiators enters the outer jacket at 45 and leaves at 47 where it is fed by pipe 48 to the inlet 38 of the inner jacket, the hot water outlet 39 leading to the place of use. The burner fire chamber 61 is surrounded by spaces fed with combustion air by a fan 15 driven by motor 14 drawing air past a damper 96 and delivering it tangentially to the fire chamber in whirling vortex fashion through passage 80, over a baffle 63 through apertured cone 58, and past a flamedeflecting cone 62. The burner has spark ignition electrodes 57 connected to a magneto 17 on the shaft of motor 14 which also drives a fuel pump 16. The motor 14 operates under the control of a thermostat 9. Damper 96 is automatically opened by oil pressure derived from the fuel pump.
Patent GB-941317-A (GB)
Title: Flotation fluid particularly for a fluid-supported gyroscope
IPC: G01C19/20
Filed: 1960-04-01
Abstract: 941,317. Gyroscopic apparatus. SPERRY RAND CORPORATION. April 1,1960 [April 8, 1959], No.11532/60. Drawings to Specification. Heading G1C. A flotation liquid, for use in a liquid-floated instrument such as a gyroscope, consists wholly of polybromotrifluoroethylene, or a mixture wherein it is mixed with polychlorotrifluoroethylene with or without a polymeric thickener. The specific gravity may be between 1. 85 and 2. 5, and the vapour pressure 20 to 180 microns, at 165F. and the solidification point may be between -65 F. and 5 F. Specification 772, 432 is referred to.
Patent GB-820061-A (GB)
Title: Wind tunnel model support
Inventor: WHITENER PHILIP CHARLES
IPC: G01M9/04
Filed: 1957-04-09
Abstract: 820,061. Wind tunnels. BOEING AIRPLANE CO. April 9, 1957 No. 11588/57. Class 4. A device for supporting a model aircraft M within the working section 9 of a wind tunnel for pitching movement about a point P comprises a column 2 guided at 32 in a fixed structure 3, the column having a pivot 12 for an arm 1 to which the model is attached. The arm 1 is extended across the pivot to carry a nut 17 engaged by a screw jack 16 formed on a shaft 15 which is mounted in column 2 by a thrust bearing 18 and is formed with a splined extension 13. A further nut 20 on the column is engaged by a screw jack 21 and both jacks are driven through differential gearing 4 from a motor 40. When the two jacks are driven at identical rates of axial advance the model will be moved vertically within the tunnel without change of incidence but operation of the differential gear 4 to produce relative axial movement between the nuts 17 and 20 will change the incidence of the model without vertical movement of the point P. In a further embodiment the differential gear may be replaced by hydraulic transmission mechanism. A clutch (not shown) may be inserted in the drive to shaft 15 to enable the column 2 and the model to be moved bodily vertically without pitching movement of the model about pivot 12. Specification 820,062 is referred to.
Patent GB-651020-A (GB)
Title: Tractor coupling arrangement
IPC: B62D49/06
Filed: 1948-04-28
Abstract: 651,020. Flexible towing connections. SOC. ANON. AUTOMOBILES INDUSTRIELS LATIL. April 28, 1948, No. 11676. Convention date, June 14, 1947. [Class 78 (ii)] A coupling arrangement for. hitching a tractor b to a towed machine (not shown) comprises a chain or like flexible towing device d and means for securing the chain at one end c to approximately the mid-point of the longitudinal axis of the underpart of the tractor chassis and at the other end to approximately the mid-point of the longitudinal axis of the towed machine, said chain extending below the axles of both tractor and towed machine. The end c of chain d is attached to a frame a journalled at e to the tractor and movable to, and retainable in, a suitable position by chains f, g, attached at points h to the chassis. On reversing, the wheels of the tractor pass over the chain to enable the towed machine to be hauled in the opposite direction.
Patent GB-1423473-A (GB)
Title: Process for the conversion of hydrocarbon fractions containing polycyclic aromatic hydrocarbon
IPC: B01J29/00
Filed: 1974-03-15
Abstract: 1423473 Cracking catalyst MITSUBISHI PETROCHEMICAL CO Ltd 15 March 1974 [15 March 1973] 11730/74 Heading B1E [Also in Division C5] A cracking catalyst comprises a carrier of Y-type zeolite with at least 60% of the Na ions container therein having been exchanged with Ni ions, and having deposited thereon 1-25 wt% Ni, 1-20 wt% W and 0.1-5 wt% V, based on total weight. The catalyst may be sulphurised before use.