baber/WOPTO huggingface dataset:
Patent GB-1467001-A (GB)
Title: Centrifugal pumps
IPC: F04D9/02
Filed: 1973-03-06
Abstract: 1467001 Centrifugal pumps SYKES PUMPS Ltd 28 Feb 1974 [6 March 1973] 10923/73 Heading F1C [Also in Division F2] A priming arrangement of a centrifugal pump having an inlet 16 and an outlet 23, comprises a primary chamber 10 communicating with the pump impeller chamber via entries (not shown) and having a port 17 communicating with a vacuum source, e.g. a vacuum pump, via a secondary chamber 19 which communicates with the vacuum source via ports 33, 34 and collects any liquid entrained with the air withdrawn from the primary chamber. A float actuated valve arrangement 25 comprises a valve 37, an atmospheric valve 38 and a disc 39 which is slidable along a shaft 36. Surges in the liquid in the chamber 10 operate the valve arrangement to temporarily close the port 17. Rising liquid in the chamber 10 opens valve 38 whereby the inflow of atmospheric air forces the disc 39 downwardly to close the port 17. The consequent atmospheric pressure built up in chamber 19 forces any liquid therein back in chamber 10 via valve 30 and passage 29. Alternatively, the liquid may be returned from the chamber 19 by briefly opening a manual atmospheric valve 35, a glass 31 allowing an operator to see the liquid level in the chamber 19. By fully depressing the valve 35 so that it closes associated port 34, the vacuum source becomes isolated and both chambers 10, 19 are subjected to atmospheric pressure whereby a suction entry may be unblocked by flushing back water in the system. Adjustment of the degree of compression of spring 44 causes the valve 35 to open at desired vacuum and control the pump output and match the liquid flow to the pump suction. The vacuum pump may be tested by fitting a gauge to orifice 48 and isolating the vacuum pump via the valve 35. The port 33 may be fitted with a liquid-inhibiting device such as a float or ball valve 49.
Patent GB-115970-A (GB)
Title: Improvements connected with Printing Machines.
IPC: B41F13/22
Filed: 1917-07-30
Abstract: 115.970. Amalgamated Press. Ltd., Wright, J. H., and Harrison, A. S. July 30, 1917. Cylinder, rotary, and plate machines; heating, drying, and damping apparatus; inking-apparatus. -Printing-machines are provided with a system of pipes passing through and about the machine near the groups of inking-rollers and other elements, for supplying either steam, or hot, cold, dry ,or moist air, or a mixture of air and steam, for regulating the temperature and humidity of the air surrounding the machine and in the room. As shown, pipes A connected with a pump, fan or blower B may be supplied with steam, if necessary, from a pipe F having regulating-valves G, and the steam or air, or a mixture of steam and air, is forced through branches of the pipes A extending across and through the machine. The pipes are perforated where required, for exit of the air or steam, &c., and a drain trap or syphon may be provided for condensed steam. The pump B may be driven from a shaft E of the machine.
Patent GB-954156-A (GB)
Title: Improvements in or relating to pulse amplitude analysing circuits
Inventor: SAUNDERS PATRICK WILLIAM
IPC: H03K21/00
Filed: 1962-03-22
Abstract: 954,156. Classifying pulses; amplifying circuits. E. K. COLE Ltd. March 22, 1963 [March 22, 1962], No. 10934/62. Headings H3P and H3W. Pulse amplitude analysing apparatus comprises a pair of virtual-earth amplifiers A, A1 having different gain and connected to respective amplitude-sensitive devices D1, D2, the gain being conjointly adjustable by means of a pair of ganged input resistors R1. D1, D2 are inherently responsive only to pulses above the same amplitude level. Since the gain of the two channels is different, D2 responds only to input pulses at T3 having amplitude greater than V1 whilst D1 only responds to pulses at T3 having amplitude greater than V1+V2. R1 is adjustable so that the system is responsive to a range of threshold levels (V1). The gatewidth V2 remains constant when R1 is adjusted but may be independently adjusted by variation of R3. In Fig. 3 (not shown), R3 is omitted and the different gain of the channels is achieved by use of feed-back resistors R2 of different value. Both threshold level V1 and gatewidth V2 are thus adjustable by variation of R1. The amplifiers A, A1 may use one or more valves or transistors.
Patent GB-1135446-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: H04L7/06
Filed: 1966-03-11
Abstract: 1,135,446. Multiplex signalling. TELEFONAKTIEBOLAGET L. M. ERICSSON. 11 March, 1966 [11 March, 1965], No. 10939/66. Headings H4L and H4R. In a data transmission system wherein a plurality of parallel channels are used for data transmission and a clock pulse channel is used for synchronizing a clock pulse generator at the receiver, the clock pulse channel is utilized for the transmission of additional message signals. As described, four channel plus the clock pulse channel are provided, the clock pulse information being transmitted by means of two frequencies and the remaining channels each requiring four frequencies. At the sender, Fig. 3, frequency-shift clock pulses are developed at SK and frequency-shift data signals at MO, these signals being combined at SU and transmitted to the receiver. Message signals to be sent over the clock pulse channel are supplied via pulse shaper SP to an inverter FV in the clock pulse channel which operates to double the normal duration of a clock pulse. The received signals are amplified at A, the clock pulses P1 being selected at RK and the data pulses at DM, the data pulses being supplied to the output circuits via a sensing means SA under the control of clock pulses P2 at twice the repetition frequency of the incoming clock pulses and provided by the local clock OS via amplifier F. The pulses P2 are converted to square wave pulses P5 at half the repetition frequency of pulses P2 in a frequency divider FD, these pulses being 90 degrees out of phase with the incoming clock pulses when the receiver is synchronized. The pulses P5 are combined at MD with the incoming pulses P1 and the resulting signal is integrated at I, limited at B and used to control the frequency of the clock pulse generator OS. The limiter B ensures that the voltage increase from the integrator I resulting when the clock pulses carry the additional signal is minimized to prevent loss of synchronism. Narrow sampling pulses P7 occurring at each change of polarity of pulses P5 are derived at PU and control pulse sampler SB to which the clock pulses P1 are applied. The resulting output P8 which is a replica of the input P1 delayed by one half period is supplied to a signal detector SD for the additional signal which is controlled by pulses P5, this additional signal P9 being supplied to an output circuit via AND gate OK. A further signal detector KD operated by the incoming clock signal P1 delays the clock signals, these delayed signals connecting the limiter B into circuit and also controlling AND circuit OK. This ensures that the limiter B is effective only after synchronization has been carried out. Alternatively the limiter B can be controlled by the signal P9 so that the clock OS is not frequency-controlled during the time when the additional signal is present. The limiter I also reduces distortion due to pulse " jitter."
Patent GB-548686-A (GB)
Title: Improvements in and relating to the manufacture of heat exchangers
IPC: B21D53/02
Filed: 1941-08-28
Abstract: 548,686. Making heat exchangers. ASCOT GAS WATER HEATERS, Ltd., and FRIEDMAN, L. Aug. 28, 1941, No. 10983. [Classes 83 (ii) and 83 (iv)] Angular bending; coiling soldering.-A coiled liquid conveying tube is applied to a shell to form part of a heat exchanger such as a gas water-heater by means of a grooved roller, one end of the tube being held on the shell and the shell and roller rotated in opposite directions without any relative longitudinal movement. The tube 21 which may be bent to U-shape so as to form a double coil is secured by a clip 22 to one end of a shaft 9 carried by an expanding mandrel 8 which may be operated by fluid pressure and provided with a dash pot for ensuring slow expansion movement. The mandrel, which is rotated by chain gear from an electric motor, is geared to a roller 6 provided with grooves 19 of constant or variable pitch. The free ends of the roller mandrel spindles are connected by a handled yoke 13. The legs of the tube pass into the grooves of the roller being guided thereto by channel guides 29 on sleeves 30 slidably mounted on bars 23 and shoes 28 on levers 27 pivoted on the bars 23. The bars 23 depend from a block which is urged by springs in the direction of travel of the tube along the shell as coiling proceeds. The levers 27 pass between lugs 27a on the sleeves and may be pushed down so as to raise the shoes 28 to release the tube. Solder strips 31 may be passed from a supply drum over rollers 32 on the bars 23 and through funnel guides 32a carried by the guides 29 so as to pass between the tube and shell. Towards the finish of the coiling operation the strips are cut by hand operated shears 36, 37 mounted on a box 34. This box also carries a grooved guide 40 for receiving the ends of the tube which are bent by hand so that they can lie in the grooves 41 of the roller. This bending is effected between the rollers 43 on a handoperated lever the pivot of the outer roller being placed in one of the holes 44 in the box. This end of the coil may then be secured by a clip to the shell. Prior to effecting the bending operation the machine is automatically stopped by trip pins 50 on a plate 49 geared to the roller shaft, the pins operating trip switches in the motor circuit. When the machine is stopped a member 45 is at the same time automatically moved, e.g. by fluid pressure, into position to support the mandrel during bending. After coiling, the mandrel is collapsed and the article removed therefrom and placed in an oven to effect the soldering. The mandrel may be longitudinally grooved to receive a seam on the shell.
Patent GB-969838-A (GB)
Title: Induction motor braking device
IPC: H02K7/102
Filed: 1963-03-20
Abstract: 969,838. Electric motors having brakes. HELIN HAGENER ELEKTRIZITAETS INDUSTRIE G.m.b.H. March 20, 1963 [Feb. 5, 1963], No. 11013/63. Heading H2A. [Also in Division F2] Two complementary composite castings 14, 11, Fig. 3, respectively of magnetic steel and non - magnetic metal, form a pole body 7, Fig. 1, which with a magnetic body 8 disengages a friction brake 10 when the stator winding 3 of an induction motor is energized. A helical compression spring 9 acting between the two bodies engages the brake, and steel rods 19 embedded in the rotor pass through the body 7, a short-circuit ring 18, and plastic bushes 22 in the body 8.
Patent GB-627017-A (GB)
Title: Improvements in or relating to air-cooled internal-combustion engines
IPC: F01P7/02
Filed: 1946-04-10
Abstract: 627,017. Cooling cylinders. BRISTOL AEROPLANE CO., Ltd., MANSELL, H. C., and GORRELL, H. N. April 10, 1946, No. 11065. [Class 7 (ii)] In a sleeve-valve engine cylinder cooling air is divided by baffles to flow in two paths as shown by arrows, one path being across the cylinder head and the other down the cylinder barrel. The air enters by a duct 19 and part is deflected by a cowl 21 and a trough 29 to flow past fins 28 on the junk head. The remainder flows round the annular space formed by cutting away the tops of longitudinal cylinder fins and bounded by a casing 20 formed in two parts connected by a band 36. The upper part is attached to the cylinder by bolts 53, and the two parts are drawn together by bolts 32 and wing nuts 35. Openings 47, 48 are arranged for the exhaust and inlet pipes, that for the exhaust pipe being large enough to allow cooling air to escape and thus cool the pipe. Baffles 49 prevent air from flowing through gaps left between groups of cylinder fins. Specifications 610,584 and 627,018 are referred to in the Provisional Specification.
Patent GB-336550-A (GB)
Title: Receiving or casting table for glass works
IPC: C03B19/02
Filed: 1930-04-08
Abstract: 336,550. Locreille, C. April 9, 1929, [Convention date]. Rolling.-A table for receiving or casting glass plates or sheets is made of a sandless concrete composed of fragments of porphyry and of a ground mixture of burned lime, silica, and alumina, the porphyry fragments being distributed in several layers through the thickness of the table according to their size. The bottom layer a contains the largest fragments of porphyry and is reinforced by transverse bars 1, longitudinal bars 2, and rings 3 covered with wire netting 4. A second layer b, and a third layer c, contains smaller fragments of porphyry, and the top layer d contains porphyry which has been pulverized. The reinforcing bars and rings are made of a metal having a low coefficient of expansion.
Patent GB-418305-A (GB)
Title: A device for use in radiating parts of the human body with cathode rays
IPC: H01J33/00
Filed: 1933-04-13
Abstract: 418,305. Cathode-ray tubes. BRASCH, A., 4, Clausewitzstrasse, Charlottenburg, and LANGE, F., 19, Waldowstrasse, Friedrichshagen, both in Berlin. April 13, 1933, No. 11212. Convention date, April 13, 1932. [Class 39 (i).] Apparatus for treating the human body with cathode rays comprises a cathode-ray tube and a narrow conduit of a diameter not more than about 1 cm. forming an extension thereof and adapted for insertion into the body, and conveying the electrons which pass through the anode in such a way that they only emerge in the interior of the body. The conduit is preferably a tube of metal. of high atomic weight and may be exchangeable for another of different size. It may be formed as a probe, cannula, or injection needle and capable of movement with respect to the discharge tube. Magnetic fields produced by solenoids may be provided at the exit from the tube or entrance to the conduit for concentrating the ray. A longitudinal field may be produced in the conduit by a coil wound round it, to ensure axial directioning of the electrons even when the conduit is moved or bent. The conduit has a transparent window of beryllium or other substance of low atomic weight, a separate window being provided for the discharge tube. The conduit may be evacuated or filled with a gas. The discharge tube 1 may operate with condenser shock excitation, the wall being formed as described in Specification 376,761. The electrons pass by the window 2 to a cannula 3 connected by means of an insulating member 4. A flexible tombac tube 5 wound with a solenoid 7 permits bending. The oblique end of the cannula is closed by a window 6. In the case of a probe, a conical window may be provided or a narrow strip of beryllium can be welded in to permit passage in one direction only. The apparatus can be employed also in treating normally inaccessible or deeply seated parts of organic matter other than the human body, or to radiate a remote portion of some other liquid or solid. Specifications 27133/03, [Class 39], 364,706, 373,900, and 388,836 also are referred to.
Patent GB-891489-A (GB)
Title: Suspension device for document files
IPC: B42F15/00
Filed: 1958-04-09
Abstract: 891,489. Filing papers. SCHMID, H. April 9, 1958, No. 11298/58. Class 146(1) A hanging document folder is provided with a mounting 2 centrally of two of its abutting edges, the mounting having an open recess 3 to receive a rail 4 from which the folder is suspended. The folder may be engaged in an inclined position (Fig. 2) by the provision of a step 2b on the inclined edge 2a opposite a supporting nose 5 which edge engages the vertical flange 4b of the rail; the unbalanced weight of the folder produces a turning moment which maintains this engagement. In the horizontal position of the folder, Fig. 1, the flange 4b engages a notch 2c, while the horizontal flange 4a engages under the nose 5. In a modification (Figs. 3 and 4, not shown) the rail has a vertical flange above a horizontal flange the nose and opposite edge having steps to maintain the folder in inclined position. In a further modification, Figs 5 and 6 (not shown), the rail is channel sectioned, the nose having a notch on its top and underside for holding the folder in horizontal and inclined position respectively.
Patent GB-550550-A (GB)
Title: Improvements in clocks
IPC: G04C15/00
Filed: 1941-09-04
Abstract: 550,550. Clocks. DRUMMOND, C. T. Sept. 4, 1941, No. 11305. [Class 139] In a clock toothed gearing between certain of the spindles is avoided by the use of a cam or eccentric and oscillating lever. As shown in Fig. 1, the seconds spindle 1 which is driven by the ratchet wheel 2 carries a snail cam 3 with which co-operates a spring controlled lever 4 having a pawl 7 to actuate the ratchet wheel 10 on the minute spindle 9. Roller detents 11, 13 on spring arms 12, 14 serve to maintain the actuated wheels 2, 10 in adjusted position. The wheel 2 may be actuated as described in Specification 549,409. The snail cam may be replaced by' an eccentric. In a synchronous electric motor clock a wheel 17, Fig. 2, driven by the motor,'to make one revolution per second reciprocates a lever 15 to drive the wheel 2 on the seconds spindle 1. Reference has been directed by the Comptroller to Specifications 439;035 abd 527,820.
Patent GB-479719-A (GB)
Title: Improvements in and relating to the tying or securing of arteries, veins and the like by means of ligatures and the like
IPC: A61B17/04
Filed: 1937-04-21
Abstract: 479,719. Ligaturing-appliances. WEBB, C. H., and SHAWE, D. W. G. BUTLER-. April 21,1937, No. 11366. [Class 81 (ii)] A device for applying gut, silver wire, or silk ligatures to the cut ends of veins, arteries, or other members, comprises a forceps a, Fig. 2, having slidable in lugs d thereon a rod c with a terminal apertured disc k embracing the forceps beaks b. A second rod e is rotatably mounted in lugs f, g on the rod and carries a centrally bored flanged bead q and a knurled handle h. In use, a ligature is tied in a loose knot m around the beaks h and the ends are passed through spaced holes in the disc k, caught in an eye o on lug g and passed through and wound around the bead q. The artery or vein having been gripped by the forceps, the rods are moved forward to transfer the knot to the cut end thereof; the handle h is then rotated to tension the ligature and tighten the knot after which the ends may be cut or removed from the device. The rods c, e may be parallel to the plane of the forceps or at an angle thereto. The disc k may be replaced by a crescent t, Fig. 8, having apertures, or as shown, notches u for guiding the ligature. Alternatively, the following may be employed : a pair of parallel wires mounted in a cross-head and having terminal eyes or connected by a loop passing beneath the forceps beaks and having reentrant portions guiding the ligature ; a semicircular wire having outwardly bent ends forming ligature guides. The disc k or its equivalent may be made detachable from rod c as by screwing. The knot may have a double twist or comprise two loops with a twist on each side of the forceps.
Patent GB-1133450-A (GB)
Title: Improvements in traction devices for handling flexible products
IPC: B29C48/355
Filed: 1966-03-16
Abstract: 1,133,450. Endless conveyers. SOCIETE STEPHANOISE DE CONSTRUCTIONS MECANIQUES. 16 March, 1966 [17 March, 1965], No. 11485/66. Heading B8A. A cable 7 is hauled by opposed endless members 5, 6 each of which comprises an endless hollow resilient member 8 which can be inflated through a valve (not shown) to a predetermined pressure. The cable-engaging run of each member 5, 6 is supported on rails 40, 41 by rollers 36, 37. The latter engage between teeth of drive and return sprockets 1-4.
Patent GB-623322-A (GB)
Title: Sustaining blade for rotating wing aircraft
IPC: B64C27/473
Filed: 1947-04-29
Abstract: 623,322. Rotary-wing aircraft. SOC. RATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU NORD. April 29, 1947, No. 11494. Convention date, Nov. 14, 1946. [Class 4] A blade for a rotary wing system comprises a spar, metal skin and a series of shaping members extending between the leading and trailing edges, at least two of these members being separable to press the others into engagement with each other and with the metal skin. In the form of blade shown in Figs. 2 and 3, two formers 2, 3 are provided in front of the tubular spar 1, while the rear portion of the blade consists of ribs 5 integral with a trailing edge member 7, to which the rear edges of the covering skin 9 are secured. The members 2, 3 are pressed apart by screws 11, 12 so that the member 2 and ribs 5 are forced against the skin 9. The ends of the screws 11, 12 are made flush with the leading edge of the blade after adjustment of the members 2, 3. In the modification shown in Fig. 5, an inflatable tube 24 is used to separate the leading edge members 2, 3. As shown in Fig. 4, the end of the spar 1 may be connected to a root member 23 by a welded sleeve 17 and lock-nuts 18, 20.
Patent GB-115178-A (GB)
IPC: B23B31/107
Abstract: 115,178. Sandstrom. G. T., and Berglund, N. G. Sept, 24, 1917 Sockets.-The socket 1 has a loose piece 3, movable radially to grip and release the drillhead. By braking by hand the sleeve 5, the recess 7 is brought behind the loose piece 3, so that the balls 6 can be pushed into the recess and the loose piece moved outwards to release the drill. The sleeve is secured to the socket by a spring 2 which holds it in the locking position, and its movement is limited by a pin. 12 and slot 13. Plates 8, 9 close the end of the sleeve and secure it on the socket. A detachable piece 10 can be secured by pins 11 in the interior of the socket to engage a flat formed on a broken-head drill.
Patent GB-1488235-A (GB)
Title: Alloy suitable for fusion to porcelain
IPC: C22C19/03
Filed: 1976-03-22
Abstract: 1488235 Dental alloys HOWMEDICA Inc 22 March 1976 [2 June 1975] 11521/76 Heading C7A Alloys suitable for fusion to porcelain for dental restorations contain  Cr 12 - 15 Al 0 - 1 Si 0 - 1 Sn 0 - 1À25 Mn 0À01 - 0À75 Ga 4À5 - 8 Mo 5 - 8 Fe 3 - 10 Ni Balance, and the total of Sn + Ga + Si must be at least 5À75%. The alloys have compatible coefficients of expansion with standard dental porcelains, and the method of porcelain application is described.
Patent GB-115659-A (GB)
IPC: F02N1/00
Abstract: 115,659. Marks, E. C. R., (Allison, F.) April 13, 1917. Turning-gear.-In electric or other power turning-gear which can be operated manually if necessary, a starter shaft 14 is normally connected to a rctatable sprocket 29 or other powertransmitting member by means of a releasable member 37 rotatable with the shaft 14 and having a pin 38 normally locking the member 29 to the shaft 14. In the form shown, the sprocket 29 has a collar portion 26 fitting over the socket head 15 of the starter shaft 14. The pin 38 fits in corresponding slots in the members 15, 26, and is held in place by a spring 39 bearing against a screw cap 33. When a starting-handle is to be employed, the cap 33 is unscrewed and the members 37, 38 removed, and a crank-handle is inserted, having a short transverse pin engaging only the slots 16 of the head 15. The clutch between the shaft 14 and the engine shaft 5 is an internally threaded member 21, mounted on a threaded sleeve 17 for longitudinal and rotary movement, and adapted to engage dogs 8 on the engine shaft. A leaf spring 25 engages ribs x on the clutch member 21 to cause it to move longitudinally into engagement with the dogs 8, and when the engine picks up speed, the dogs 8 engage cam surfaces 24 to effect the withdrawal of the clutch member 21.