baber/WOPTO huggingface dataset:
Patent GB-972053-A (GB)
Title: Improvements in or relating to non-return or similar valves
Inventor: TRIDGELL CYRIL WILLIAM
IPC: F16K15/04
Filed: 1962-03-22
Abstract: 972,053. Valves. POWER JACKS Ltd. March 22, 1963 [March 22, 1962], No. 10927/62. Heading F2V. A pressure-closed ball valve of non-return or mechanically opened type comprises, secured within a housing 10 by a screwed fitment 11, a seating member 12 of deformable material such as nylon within which the spring-loaded ball 13 is a light interference fit so that should the ball fail to seal completely on its seat in a shoulder 17, that portion of the seating member surrounding the right-hand half of the ball will be subject internally to a pressure lower than that which has access to an annular space between the housing and the seating member resulting in inward deformation of the latter to seal against the ball. The inner end of the seating member is chamfered and engages a sealing ring 15.
Patent GB-109427-A (GB)
IPC: F23H11/04
Abstract: 109,427. Parker, C. H., and Court Works, Ltd. Sept. 5, 1916. Grates.-In a travelling grate built up of transverse bars hinged together, each bar is formed of a number of sections. These are preferably arranged, as shown in the plan view Fig. 1, to break joint along the grate, so that each complete section is connected to two sections of the adjoining bar. Hall sections are provided to complete alternate bars. The bars are preferably webbed at their upper parts as shown. The bosses c, Fig. 2, in which the pin and socket connexions are formed, are extended beneath the longitudinal webs of the sections to provide supporting surfaces. Specification 109,296 is referred to.
Patent GB-555717-A (GB)
Title: Improvements in the manufacture of sized paper
IPC: D21H17/60
Filed: 1942-08-07
Abstract: 555,717. Sizing paper. ASSOCIATED PAPER MILLS, Ltd., and HARRISON, H. A. Aug. 7, 1942, No. 11031. [Class 96] Paper pulp is sized as with rosin or rosinwax, a non-aluminous precipitant, e.g. sulphuric acid, acid sulphate of sodium, potassium or ammonium, or nitre cake is added followed by a deflocculant, e.g. deacetylated Karaya gum, Bassorah gum or extracts from quince, payllium, linseed, hyacinth, bracken or cactus. The deflocculant may be added at the sand tables, its efficacy remaining substantially unimpaired by the use of the non-aluminous sizing precipitant. Specifications 462,508 and 554,536, [Group IV], are referred to.
Patent GB-112393-A (GB)
Title: Improvements in Electric Circuit Controllers.
IPC: H02P1/06
Filed: 1917-07-31
Abstract: 112,393. Igranic Electric Co., (Cutler- Hammer Manufacturing Co.). July 31, 1917. Controllers, drum; with auxiliary switches.-A drum controller is provided with a field-regulating switch operated in the same direction by forward and reverse movements of the drum by means of a cam and roller connexion. The drum section 9 is enclosed in the part 11 of the casing and its shaft 13 carries a cam 25 which is engaged by a roller 26 on the field rheostat arm 21. This arm is supported on a pivot 22 and a helical spring 23 tends to keep the arm to the position in which all resistance is in circuit. The resistance units 18 are mounted on the insulating panel 17 which carries the contacts 20 and are contained in the lower part of the casing. When the drum is in the " off " position, the rheostat arm is on an intermediate resistance stud as shown in Fig. 3. While the drum is being moved to its first forward position, the surface a of the cam engages the roller 26 and the rheostat arm is moved to the left to exclude all the field resistance. As the drum is moved through its second, third, and fourth positions, the cam surface b engages the roller and the arm remains stationary. Further movement of the drum causes the cam surface c to engage the roller and to move the arm to include resistance in the field circuit. This arrangement permits the arm to have a greater range of movement than the drum possesses. A reverse movement of the drum from the zero position causes the cam surfaces a, f, e to engage the roller 26 and these cause similar variations to those obtained during the forward movement.
Patent GB-1071279-A (GB)
Title: Improvements in pumping
IPC: G21C15/25
Filed: 1966-03-14
Abstract: 1,071,279. Reactors. GENERAL ELECTRIC CO. March 14, 1966 [April 5, 1965], No. 11060/66. Heading G6C. In a water-cooled and moderated steam generating nuclear reactor, water is circulated by a Venturi-type jet pump. The pump is mounted within the pressure vessel at the side of the core and urges the coolant downwards to entry ports in the core base. The pump and the associated ducting is supported so as to minimize stressing due to thermal dimension changes and to prevent total loss of water from the core upon rupture of the water supply lines to the pressure vessel. Steam, after leaving the upper surface of the core, passes through separators and driers before passing to a turboalternator plant. The condensate from the latter is pumped back into the pressure vessel and passed into an annular zone between the core and pressure vessel inner surface. A third of the coolant mass is withdrawn from the lower section of the pressure vessel and pumped through the jet pump which draws the remainder of the water through the suction apertures.
Patent GB-591204-A (GB)
Title: Improvements relating to electromagnetic telephone instruments
IPC: H04R11/00
Filed: 1944-05-02
Abstract: 591,204. Telephone instruments. SIEMENS BROS. & CO., Ltd., and BONE, R. S. May 2, 1945, No. 11114. [Class 40 (iv)] The magnet system of a telephone instrument of the balanced armature type consists of a short bar-magnet 2 to which are clamped two identically shaped plates 4, forming pole-shoes 5-6, and bent in such a manner as to lie within a dimension of the barmagnet 2 transverse to the polar axis, and so that the armature 9 lies at right angles to, but in the same plane as the polar axis (perpendicular to the plane of paper) of the magnet 2. The gaps between the polepieces 5 and 6 are maintained by brass pillars 8 held by screws. The armature 9 is situated between the polepieces 5 and 6, and has one end wrapped in non-magnetic material 10 which is clamped between the polepieces 6. The other end of the armature 9 is connected to the centre of a diaphragm by a rod 11. The current coil 15 surrounds the armature 9 within the confines of the polepieces 5 and 6 as indicated by the chain-dotted lines. Specification 547,728 is referred to.
Patent GB-759250-A (GB)
Title: Devices for electrically insulating metal elements
IPC: F16B19/04
Filed: 1954-04-15
Abstract: 759,250. Riveted joints. COMPAGNIE GENERALE D'ELECTRICITE. April 15, 1954 [April 17, 1953], No. 11116/54. Class 83 (4). In a riveted joint, the metal plates 1, 2, 3 secured together by the rivet 4, are separated by insulating sheets and sheath, 5 and 6. A steel sheath 7 is interposed between 4 and 6. The insulation may consist of a synthetic material with a reinforcement of glass fibres.
Patent GB-849660-A (GB)
Title: Improvements in electrically heated boiling and heating plates
Inventor: MOULE GORDON HENRY
IPC: F24C15/10
Filed: 1956-04-12
Abstract: 849,660. Electric hotplates. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. April 12, 1957 [April 12, 1956], No. 11175/56. Class 39(3). An electric hotplate comprises a tubular sheathed heating element 1 supported on a spider 2 one limb of which is rigidly connected to a hinge bracket 5 pivotally mounted with respect to a base 4, the ends 1a of the element extending past said bracket 5, being bent first downwardly to extend freely through open ended clearance slots 6 in the bracket 5 and then inwardly and upwardly toward the centre of the hotplate. A detachable reflector tray 3, on which the spider 2 rests in the normal horizontal position, is supported by the base plate 4 which also carries plug contacts 4c connected by flexible conductors to the element 1. The element is given a generally dished shape so that the outermost convolution, with is free to adjust itself to the underside of a vessel placed thereon, is spaced above the spider 2. In another embodiment inner and outer elements are provided.
Patent GB-1073141-A (GB)
Title: Improvements relating to apparatus for heating liquids in bulk
IPC: F28F1/36
Filed: 1964-03-17
Abstract: 1,073,141. Heating liquids in bulk; heat exchange elements. F. HOWARTH. March 17, 1965 [March 17, 1964], No. 11181/64. Heading F4S. Transversely finned heat exchanger tube coils are arranged in a tank of oil or other viscous liquid to be heated by said coils. the tubing being arranged so that the fins extend in substantially vertical planes and so that there is a continuous incline along the tube axis whereby the coils are self-draining. In use, the individual coils are " threaded " through a relatively small opening in the tank wall normally closed by a cover, and a plurality of the coils are connected to a ring main located within the tank (Figs. 1 and 4).
Patent GB-309600-A (GB)
Title: Valve
IPC: F16K15/08
Filed: 1929-04-11
Abstract: 309,600. Hoerbiger, H., Hoerbiger, J. R., and Hoerbiger, A., (trading as Hoerbiger & Co.). April 13, 1928, [Convention date]. Electrically actuated valves; locking.- A valve comprising a thin annular plate 7 arranged between a seat 9 and stop 8 has electromagnetic windings 11 and 12 located in the stop and seat respectively. The windings have a diameter approximately equal to that of the valve member. The windings may be alternately switched into circuit by a switching device controlled by pressure, temperature, &c. When used as a non-return valve the windings are kept permanently in circuit, and act to delay the initial movement of the valve consequent on the flow of fluid.
Patent GB-671606-A (GB)
Title: Piston for internal combustion engines
IPC: C23C28/00
Filed: 1950-05-05
Abstract: 671,606. Pistons. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. May- 5, 1950 [Oct. 1, 1948], No. 11215/50. Drawings to Specification. Class 122(i) A piston is formed entirely or partly of a mixture of sintered metal and ceramic powder. The proportion of ceramic powder may increase from 0 per cent to 100 per cent in the direction of the piston head or the head may comprise a layer of pure ceramic ajoining a layer having varying proportions of metal powder terminating in a layer of pure metal which is welded or sintered to a metal skirt.
Patent GB-768321-A (GB)
Title: Improvements in or relating to guiding means for sheet-metal bands or strips in motion
IPC: B21B39/14
Filed: 1955-04-19
Abstract: 768,321. Metal strip guides. UNGERER, F. April 19, 1955, No. 11250/55. Class 83 (4). Moving metal strip 8 is guided by two link chains 6, 7 moving parallel to the strip, each link 13 of each chain having a recess 14 which receives and guides the adjacent side edge of the strip. The chains 6, 7 are moved at the same speed as the strip 8, e.g. by a drive derived from a metal working machine to which the strip is being fed, and acting through polygonal wheels 2. Members 9, 10 locate the links adjacent the strip. The surfaces of the recesses 14 are hardened and lubricated. The guide may be used for guiding strip passing through edgetrimming shears.
Patent GB-165272-A (GB)
Title: Electrical double pole switching plug
IPC: H01R13/707
Filed: 1920-04-23
Abstract: 165,272. Sanders, H. C. April 23, 1920. Two-part couplings.- A double-pole switching- plug has a plug-body A carrying blade-contacts I and a spring-catch E which are inserted into a suitably-formed aperture in the cover of a base having fixed contacts H. A loose handle B on the plug-body has a pin< >B<1> which lies between the two ends of a spring A<2> encircling the plug-body A; a pin A<3> in the plugbody has a pin B<1> which lies between the two ends of a spring A<2> encircling the plug-body A, a pin A<3> in the plug-body lying also between the same spring-ends. The loose handle is turned through 90‹ thus stressing the spring, the plugbody being held by the catch E. A cam-plate L on the loose handle, with cam-faces L', frees the catch E at the end of the quarter turn and the plug-body contacts I make quick connection with the contacts H in the base. The catch E then engages one of the contact apertures in the cover and locks the coupling. A reverse quarter turn of the handle similarly causes quick disconnection and the plug-body may then be withdrawn.
Patent GB-648630-A (GB)
Title: Improvements in or relating to electric circuit-breakers of the gas-blast type
IPC: H01H33/867
Filed: 1948-04-23
Abstract: 648,630. Gas-blast switches. REYROLLE & CO., Ltd., A., and AMER, D. F. April 23, 1948, No. 11264. [Class 38(v)] In a gas - blast circuit-breaker ir which the contacts separate within ar arcing enclosure maintained filled with gas under pressure, mean: are provided to increase the' gas pressure during the opening of the circuit-breaker sc as to obtain ar adequate blast of deionizing gas tc extinguish the arc In Fig. 1, the enclosure C containing the fixed contact C<SP>1</SP> and moving contact C<SP>2</SP> is maintained at a superatmospheric pressure by gas which is supplied from a reservoir B<SP>1</SP> through a reducing valve B<SP>2</SP>, the pressure being sufficient to provide an adequate dielectric break-down strength. The increase in the pressure occurs when the main blast valve B<SP>3</SP> is opened to cause the opening of the contacts by applying pressure to a piston C<SP>3</SP>. The increased pressure in the enclosure is also effective to open an exhaust valve E<SP>3</SP> which is moved by a diaphragm E<SP>4</SP> closing a chamber E<SP>5</SP> connected by. a bleed pipe E‹ to the enclosure. C. Hence, when the valve B3 is opened, the contact C<SP>2</SP> is retracted and the end of the arc rooted on this contact is blown by a blast of gas at the increased pressure on to the wall of a metallic skirt D and then to and through a nozzle E whereby the arc is extinguished. When the blast valve is closed the pressure in the enclosure returns to the initial pressure, the exhaust valve E<SP>3</SP> closes and the pressure on both sides of the piston C<SP>3</SP> is equalized by means of the bleed passage C<SP>5</SP> so that the contacts remain open. To reclose the circuit-breaker, a relief valve B<SP>4</SP> is opened and the sudden pressure-drop in the enclosure causes the piston C<SP>3</SP> to move the contact C<SP>2</SP> back into engagement with the fixed contact C<SP>1</SP>. The valve B<SP>4</SP> is then closed so that the pressure in the enclosure returns to its initial value. Figs. 2 and 3 (not shown), illustrate modifications of this arrangement in which additional blow-out nozzles are provided.
Patent GB-626610-A (GB)
Title: Improvements in or relating to frequency modulation radio altimeters
IPC: G01S13/34
Filed: 1945-05-03
Abstract: 626,610. Radiolocation. SHARPE, B. A. May 3, 1945, No. 11307. [Class 40 (vii)] In a frequency modulation radio altimeter of the type providing an electrical output which is a function both of the height to be measured and the modulation frequency, the indicator comprises a pointer driven by servomotor means for comparing the said electrical output with a further output which is proportional to the instantaneous modulation frequency, so that the indication provided is independent of the modulation frequency. A frequencymodulated signal generated at TX is radiated from the aerial TA and the echo signals received at RA are mixed with the signals then being transmitted, the beat frequency signal being applied to a frequency counting circuit FC1 which generates a voltage Va proportional to the beat frequency. A variable condenser in the transmitter TX is driven continuously by the motor MM to provide the frequency modulation. A voltage ripple produced in the field winding F and consequently related to the modulation frequency, is applied through bandpass filter BPF and limiter L2 to the frequency counter FC2 which provides a voltage Vb proportional to the modulation frequency. A fraction of the potential Vb is tapped off by the potentiometer POT and applied in opposition to the potential Va to the grid of a valve, the anode circuit of which contains a change-over relay RE arranged to control a reversible motor SM which accordingly drives the potentiometer arm to maintain the voltage applied to the grid of the valve constant. A pointer P attached to the potentiometer arm indicates the altitude. The indication, which is a function of the ratio of Va to Vb is consequently independent of the modulation frequency as both potentials are directly proportional thereto. Moreover by supplying at least both the limiter circuits from a common H.T. supply, Va and Vb may be made to vary proportionately should the H.T. supply alter, whereby the meter reading may be rendered independent of the supply voltage. Since the indicator may be made to provide substantial torque, the system is suitable for providing remote indications.
Patent GB-1411728-A (GB)
Title: Valves
IPC: F16K1/02
Filed: 1974-03-14
Abstract: 1411728 Valves RELF RESEARCH Ltd 14 March 1974 [15 March 1973] 11399/74 Heading F2V  A stop valve in a domestic hot water system comprises a body 3 having an inlet 6, outlet 15 and a seat 5 against which a valve member 9 is biased by a spring 12 bearing on a collar 13 on the valve stem 8. The valve can be opened by screwing a threaded cap 17 on to body 3 such that cap abutment 19 bears on collar 13 to unseat valve member 9. An 0-ring 20 prevents leakage past cap 20. Valve member 9 or seat 5 may also be provided with an 0-ring. A nylon gauze filter 14 surrounds spring 11 and can be purged of dirt by depressing collar 13 with cap 17 removed. A pressure reducing valve (1, Figs. 1, 3, not shown) may be connected by a nut (28) to outlet 15, the latter having a seat 22 for the reducing valve member (24). Most of the valve parts are of plastics material.
Patent GB-101216-A (GB)
Title: Improvements in or relating to Machines for Skiving Leather and the like.
IPC: C14B1/00
Filed: 1916-08-12
Abstract: 101,216. United Shoe Machinery Co., (Assignees of Latham, A.). Aug. 13, 1915, [Convention date]. Disk apparatus; machine cutters, grinding in situ.- The cutting-edge of an annular rotary cutter 7 in a machine for skiving leather &c. is ground to a bevel on the outside by a grinding-d i s k , while its inner surface is trued by an annular grinder 30 set at a small angle to the plane of rotation of the cutter, the annular face of the grinder contacting with the cutter at two points. The grinder is mounted on a holder which projects through the side 3 of the machine casing and is adjustably mounted on a bracket 22. The grinder is drawn into action by a spring 36 acting through a ball bearing upon a collar 37 on its spindle, which is provided with a knob 41 whereby the grinder may be manipulated and lifted out of action. A screw sleeve 40 forms an abutment for the collar and serves as a stop for inward movement of the grinder.
Patent GB-479720-A (GB)
Title: Improvements in or relating to bags, sacks and like containers
IPC: D06F95/00
Filed: 1937-04-21
Abstract: 479,720. Sacks &c. PUSEY, W. April 21, 1937. No. 11425. [Class 94 (ii)] In a closure means for a sack &c., particularly a laundry-bag, one side 3 at the open end extends at 3b beyond the other side 2 so that in closing the sack it may be first folded over, Fig. 3, and held by detachable buttons &c. 4,. in holes 3a, and then folded again, Fig. 4, the final closure being secured by the buttons &c. 4, being passed through the holes 2b, 3c. In a further modification, Figs. 7, 9, a locking strip of material 5 is attached to the side 2, the buttons &c. 4, in the final closure, engaging with the holes 5a in the locking strip which covers the folded material at the bag top, Fig. 9. The body proper of the bag may be of net-work, the top closuring members being sewn thereto. An internal tongue may be formed at each side of the sack opening or oblique stitching may be employed to prevent creeping out of contents. The closure may be locked, particularly for mail-bags, by passing a rod through the rings and padlocking the same.
Patent GB-120588-A (GB)
Title: Improvements in or relating to the Production of Dyes.
Inventor: HART ALICE MARION
IPC: C09B59/00
Filed: 1917-08-13
Abstract: 120,588. Hart, A. M. Aug. 13, 1917. Ferrocyanides.-Peat is treated with sulphuric and nitric acids and the bulk of the iron present in the resulting acid liquid is precipitated by potassium ferrocyanide or ferricyanide.
Patent GB-804506-A (GB)
Title: Vehicle for conveying and spreading manure
IPC: A01C3/06
Filed: 1956-04-17
Abstract: 804,506. Manure distributers. VAN DER LELY, C. April 17, 1956 [April 19, 1955], No. 11695/56. Class 6(1). [Also in Group XXX] A vehicle for spreading manure comprises a container 104 provided with a spreading device 112 and a loading device including a fork 142 arranged to draw material through the open rear end of the container. The fork 142 is mounted on a system of lazy-tong links 132 operated by a hydraulic cylinder 126. Two guide rails 144 support a tube mounted on a shaft 129 of the links 132 and is operated by hydraulic cylinders 145 to raise and lower the fork 142. The vehicle is provided with a hydraulic cylinder 114 which is operated to lower the container 104 so that the rear end contacts the ground. Operation of the cylinder 126 causes the fork 142 to draw material into the container to the front thereof, the tines of the fork sliding over the bottom wall of the container. The fork is then withdrawn and the process is repeated until the container is filled. When discharging the vehicle the spreading device 112 is brought into use and the fork 142 is caused to advance slowly towards the front of the container to feed material to the device 112. The device 112 comprises two paddle-like feed wheels rotated about vertical axes behind which are two vertically superposed toothed feeding drums.
Patent GB-438323-A (GB)
Title: An improved device for automatically controlling the water level in a steam condenser
IPC: F28B11/00
Filed: 1935-04-16
Abstract: 438,323. Fluid-pressure servomotorcontrol systems. SOC. RATEAU, 40, Rue du ColisÚe, Paris. April 16, 1935, No. 11735. Convention date, April 23, 1934. [Class 135] In apparatus for regulating the water level in a condenser a, the valves h, g controlling respectively the delivery of water from the feed tank f to the condenser and return from the condenser to the feed tank are operated by the water pressure in the feed tank, which pressure is transmitted to pistons on the valves through pipes p, j and v, i under the control of float valves m, s in free communication with the condenser. The valve m closes when the water level in the condenser is high, and the valve s closes when the water level is low.
Patent GB-167002-A (GB)
Title: Improved means for attaching bushes or sockets to plate-like bodies by flanging
IPC: B21D39/03
Filed: 1920-12-02
Abstract: 167,002. Cockburn, J. B. Dec. 2, 1920. Flanging; jointing by stamping.-In connecting sockets H to plates &c. J by flanging, the bore of the socket is supported by a die A which is expanded by a conical part c of the flanging-die B when it comes in contact with a spring-pressed cap F carried by the bottom die D.