baber/WOPTO huggingface dataset:
Patent GB-684657-A (GB)
Title: Impulse sender of the type used in telephone systems
IPC: H04M1/54
Filed: 1951-06-04
Abstract: 684,657. Party-line substation apparatus. GENERAL ELECTRIC CO., Ltd., PUCKETTE, C. C., and SCOWCROFT, J. March 31, 1952 [June 4, 1951], No. 13216/51. Class 40 (iv). A substation set for use in the party line system described in Specification 684,637 includes apparatus controlled by a push-button for sending a fixed number of impulses to identify a calling party. On the removal of the handset from the cradle, the hinged plate 5 rises and allows cradle springs 4 to close as shown. The push-button 12 bears on two levers 11, 13, and the former near the limit of its travel depresses a plunger 14 which closes springs 15 to short-circuit a condenser in the line loop and is locked by a catch 16 on the plate 5 until the handset is replaced. The impulse sender resembles that described in Specification 518,721, but its impulse wheel 10 has a number of teeth characteristic of the substation and is wound up by the movement of the lever 11. A trip 24 which is brought into engagement with the controlling governor 17 by the lever 13 when fully depressed prevents Impulsing until the latter (which is spring- leaded) has returned to normal, when the trip is withdrawn. The push-button returns with the over 13 and is retained by a catch 18 which is eleased when the lever 11 reaches normal after mpulse transmission.
Patent GB-257020-A (GB)
Title: Improvement in spray nozzles for oil engines
IPC: F02M67/12
Filed: 1925-05-20
Abstract: 257,020. Marks, E. C. R., (Worthington Pump & Machinery Corporation). May 20, 1925. Cylinders receiving liquid fuel.-Fuel from a pipe 7 passes through passages 5 and tangential orifices 10 into an annular chamber x wherein it is whirled as a body, air under pressure from a pipe 13 being supplied over the rear surface of such whirling body of fuel to force it, through an atomizer 14, into the combustion, chamber. The chamber x is formed between a cup-shaped member 11 having perforations 12 in the bottom thereof, and a ring-shaped member 9 having an .annular fuel space 8 which is in connection with the passages 5 and the tangential orifices 10. The atomizer 14 comprises a number of spaced rings having staggered peripheral openings therein. Three fuel passages 5 are provided, all in connection with the fuel-supply pipe 7 through an annular groove 6. The fuel passes to the cylinder through a conical nozzle 1 having a plurality of spraying orifices 3. The nozzle 1 is pressed into contact with the combustion chamber wall by the holding-down bolts 16, and is so arranged that whereas only a small portion projects into the combustion space, a large mass of metal is in contact with the cooled walls A. In a modified construction, the atomizer 14 is omitted and the members 9 and 11 are of greater axial length. The injector will work efficiently inclined at any angle to the vertical.
Patent GB-1357903-A (GB)
Title: Method of and means for introducing anti-freeze solution into  compressed air systems
IPC: F16L55/07
Filed: 1971-05-05
Abstract: 1357903 Introducing liquid into compressed gas CLAYTON DEWANDRE CO Ltd 5 April 1972 [5 May 1971] 13255/71 Heading B1R A device for introducing antifreeze liquid into a compressed air system containing a compressor, reservoir, compressor unloader means and governor valve responsive to governer pressure comprises a conduit 2 adapted to be connected to the compressed air system, a cylindrical chamber 3a, 3b communicating with the conduit via a spring biassed non-return valve 5 and with a source of the liquid 7, a piston 11 displaceable in the chamber under air pressure to cut off the source of liquid 7 from the chamber and to eject the liquid already in the chamber into the conduit via the non-return valve. The supply of liquid from the source to the chamber is controlled by a tilt valve 8, normally open (as shown) so that the chamber is full of liquid. When the piston 11 is actuated by compressed air from duct 10, the stem 8a of the tilt valve is released by a groove 13 in the piston and the valve 8 seals the chamber from the liquid source. Continued movement of the piston ejects the liquid remaining in the chamber past the valve 5. The stroke of the piston may be adjusted by means of a spacer member 14 and thumbscrew 15.
Patent GB-1192156-A (GB)
Title: Electromagnetically Actuated, High Inertia Clutch-Brake Motor
IPC: H02K7/112
Filed: 1969-03-13
Abstract: 1,192,156. Electric motors. SINGER CO. 13 March, 1969 [20 March, 1968], No. 13262/69. Heading H2A. [Also in Division F2] A clutch-brake motor, particularly for a loom or sewing machine, has an external rotor 19 secured at one end to a flywheel 20 of magnetic material attached to a shaft 21 journalled in an extension 15 on an end cap 11 of the motor housing 10. Rotatable with the flywheel is a ring 41 comprising inner and outer rings 42, 43 of magnetic material separated by a ring 44 of non-magnetic material so as to present a bipolar surface to a clutch disc 31 of magnetic material secured to an output shaft 24 journalled in shaft 21. Ring 41 is faced with friction material 48 which is engaged by the disc 31 when a clutch coil 36 secured to housing 10 is energized. The disc initially may be flexed into engagement with ring 41 prior to axial movement of shaft 24 which is permitted by bearings 25, 26. Alternatively, disc 31 may be splined on shaft 24. A second end cap 12 on the housing 10 has an annular recess in which is secured a brake coil 51, the cap presenting polar surfaces 53, 54 to the disc 31 and the space between the surfaces being filled with friction material 55. The disc may be biased into engagement with material 55 a predetermined amount determined by a spring (61), Fig. 3 (not shown), acting between the flywheel and a cup (59) rotatably mounted on the hub (29<1>) of disc 31.
Patent GB-612803-A (GB)
Title: Improvements in or relating to automatic thermomagnetic control
IPC: H01H37/58
Filed: 1947-05-17
Abstract: 612,803. Magnetic switches. VALENSI, G. May 17, 1947, No. 13308. Convention date, June 20, 1946. Addition to 612,802. [Class 38 (v)] In an arrangement for protecting transmission lines in signalling systems against high currents, the leads 11, 11<1> are normally connected through two contact arms 4, 41, fixed contacts 8, 81 and resistances 3, 31 to the telephone exchange or subscriber's substation 10, a permanent magnet 6 attracting the armature 1 so that the arms 4, 4<1> engage the contacts 8, 8<1>. On a sustained high current, one or both of the resistances 3, 3<1> are heated, the armature 1 passes its Curie point, ceases to be ferromagnetic and is released so that the contacts 4, 4<1> leave the contacts 8, 81 and engage an earthing contact 9, whereby the lines 11, 11<1> are disconnected from the exchange 10 and connected to earth. Spark-gaps 12, 121 may also be provided. When overload disappears, magnet re-attracts the armature.
Patent GB-854705-A (GB)
Title: Improvements in or relating to ships for carrying liquefied gases
IPC: B63B25/12
Filed: 1957-04-26
Abstract: 854,705. Carrying liquified gas. CONSTOCK LIQUID METHANE CORPORATION. April 26,1957 [May 7, 1956], No. 13331/57. Class 113. [Also in Group XXVIII] A ship (having a depth to beam ratio of about 1 : 1À1) comprises an outer hull 3, an inner wall 4 defining a fluid-tight cargo space, cargo tanks 17 (about twice as high as they are wide) in said cargo space, and a thick layer 16 of a thermal insulating material (e.g. balsa wood) on the wall 4 (see Fig. 11) between the cargo tanks 17 and the wall 4. The doublewalled sides and bottom of the ship are divided into wing tanks 11 and bottom tanks 8, 9. Cofferdams 2 extend across the ship. Each tank 17 has a thermally insulated dome 21 extending upwardly through the deck of the ship, through which dome the liquid cargo may be loaded and unloaded. In the embodiment of Fig. 13 the weight of the dome is carried by the deck 28. Circumferential corrugations 25 between lower and upper portions 26, 27 allow for temperature changes. In the event that the insulation 16 should be inadequate, to prevent the extremely cold cargo from refrigerating the load carrying structure of the ship a system of conduits and pumps is provided whereby the liquid ballast in the tanks 8, 9, and 11 is circulated to effect a heat exchange between the inner walls 4 and the outer hull 3 and the sea and air surrounding the ship. A spray may be projected against the upper surface of the walls 4 by means of conduits 50, Fig. 10. The structural portion of the hull may also be protected from becoming refrigerated by the inclusion of steam lines in the bottom and wing tank spaces. Specifications 781,354, 854,706, 854,707 and 854,708 are referred to.
Patent GB-237685-A (GB)
Title: Improvements in, or relating to, the preparation of alkali celluloses
IPC: C08B1/08
Filed: 1924-05-30
Abstract: Alkali-celluloses containing not less than 30 per cent of caustic alkali and not more than 35 per cent of water, are prepared by steeping cellulose in caustic alkali solution of more than 50 per cent strength and maintained at a temperature not lower than 40 DEG C., and subsequently removing the excess of caustic alkali solution while maintaining a raised temperature.  In an example, cotton wool is immersed in 60 per cent caustic soda solution at 65 DEG  C., and after steeping for five minutes, the cotton is removed and immediately pressed, while still hot. During the steeping and pressing stages, contact of the cotton &c. with the air is to be avoided.  The alkali-celluloses obtained, are suitable for the manufacture of cellulose esters.
Patent GB-133998-A (GB)
IPC: B60B37/04
Abstract: 133,998. Jenkins, L., and Davison, J. W. Oct. 12, 1918. Channels and reservoirs in vehicle-wheel bearings.-Wheels for colliery trams &c. are secured on their axles by means of a stirrup h, the limbs of which pass through parallel grooves in the hub on opposite sides of the axle and engage an annular groove in the axle. The limbs of the stirrup also secure a bush j, and a cotter-pin m is passed through their free ends. The hub b which may be cast in one piece is formed with a central cavity c for lubricant, and is provided with a boss e at its outer end to receive the end of the axle. The boss is formed with a diametrical channel k, through which the lubricant passes from the opening d to the cavity c.
Patent GB-806530-A (GB)
Title: Improvements relating to control means for magnetic amplifiers
IPC: H02P9/32
Filed: 1956-05-02
Abstract: 806,530. Magnetic amplifiers. FERRANTI METERS Ltd., D., and BELSEY, F. H. April 26, 1957 [May 2, 1956], No. 13507/56. Class 40 (9). A carbon pile 8 is used to control a magnetic amplifier of a known resetting type, Fig. 3. The pile is operated electromagnetically by a control signal in coil 9. The flux resetting circuit is separate from the power circuit in the embodiment shown in Fig. 2. The two cores of an autoself-excited full-wave rectifying arrangement are connected to a centre-tapped secondary winding 11 on a supply transformer 1, the rectifiers being poled so as to reset the cores in the half-cycles in which no current flows in the corresponding main windings 4. A second control coil 12 on the carbon pile may be connected in series with the load to provide either positive or negative feedback. Positive current feedback and negative voltage feedback may be combined.
Patent GB-778789-A (GB)
Title: Improvements in remote-controlled electric switches for mounting on distribution boards
IPC: H01H51/06
Filed: 1955-05-10
Abstract: 778,789. Two-part couplings. HILFIKER, H., and SCHREIBER, A. May 10, 1955 [May 11, 1954], No. 13508/55. Class 38 (1). [Also in Group XXXVII]  A switch (see Group XXXVII) is mounted between a pair of transverse angle-section bars 7 of a distribution board by insertion between a pair of insulating blocks 15 respectively carried by the bars. The bars are apertured at 18, 19 at intervals along their length receiving projections 16, 17 on the blocks whereby the blocks may be mounted at a desired position on the bars and are held in place by spring clips 20. The blocks 15 engage the upper and lower sides of the switch casing, sideways movement of the switch out of blocks being prevented by finlike projections on the blocks engaging grooves formed along the length of the casing part 2, the inward movement of the switch being arrested by the engagement between the front of the bars 7 and the rear of the front casing part 1. Circuit connections to the switch contacts are made by pairs of terminal clamps 105, 106 and 107, 108 mounted in chambers in the blocks 15, these clamps being connected, respectively, to plates 100 ... 103. When the switch is inserted between the blocks the inner ends of the plates engage, respectively, four contact springs 86 ... 89 mounted on the central casing part 2 and projecting through grooves 90 on the upper and lower surface of the latter, this engagement also serving to retain the switch in its mounted position.
Patent GB-316689-A (GB)
Title: Improvements in gears
IPC: F16H55/14
Filed: 1928-05-08
Abstract: 316,689. Dalton, G. A., and Dunham, J. R. May 8, 1928. By solid or semi-solid lubricants.-A laminated metal gear wheel is composed of plates 9 between which are placed discs of graphite or other lubricant. The plates may be scored or corrugated to support the lubricant, which in this case may be plastic and of such quality as only to fill the depressions.
Patent GB-422760-A (GB)
Title: Protective screen for tennis and like courts
IPC: E04H17/16
Filed: 1934-05-04
Abstract: 422,760. Fencing; ground anchors. PANZER, B., 14, Gloriettegasse, Vienna. May 4, 1934, No. 13578. Convention date, May 9, 1933. [Class 45] [See also Group XV] A protective screen for tennis and like courts comprises sections a removably connected to T-section iron posts b by hooks c engaging holes in brackets d fixed to the webs of the posts. In modifications clamping plates, or springs fixed to the webs, press the edges of the screen sections against the flanges of the posts (Figs. 3, 4 and 7 not shown), or the screen sections are hung by hooks upon wires or rods extending between the webs of the posts (Figs. 5 and 6, not shown). The Specification as open to inspection under Sect. 91 describes socket devices for seouring boundary posts in the ground. A socket k, Fig. 8 (Cancelled), sunk in the ground and supported by a tripod l has slots n to receive pins m on the post b. In a modified form the post has a foot-plate resting on the socket, and ribs on the post engage slots in the socket to prevent rotation. The removable screens may be sprayed with rust-protecting means. This subject-matter does not appear in the Specification as accepted.
Patent GB-1268861-A (GB)
Title: Improvements in or relating to synthetic fibrillary products
Inventor: FONTIJN WILHELMUS JOHANNES
IPC: B29C48/06
Filed: 1969-03-14
Abstract: 1,268,861. Extruding composite polymer products. ALGEMENE KUNSTZIJDE UNIE N.V. 14 March, 1969 [16 March, 1968], No. 13610/69. Headings B5A and B5B. [Also in Division D1] An elongated extruded synthetic polymer product, e.g. a sheet, film, tube or rod, comprises at least two different synthetic polymer components, at least one component forming a matrix in which another component occurs in the form of at least 100 continuous fibres, the fibres being distributed in superimposed layers at differing angles to the longitudinal axis of the product. The matrix material may be polystyrene, polypropylene, polyethylene or nylon and the fibres may be of nylon or a polyester. In the embodiment shown, Fig. 3, layers 18, 19, 20 comprise fibres making successively smaller angles to the tube axis 17. Such a tube may be made using the apparatus of Fig. 1 where different polymers are fed by pumps 1, 2 through mixers 6, 7 as described in Specification 883,989 (see Division B1) or mixer 6 followed by a gauze pack, as described in Specification 1,188,843, to form a stream in conduit 8 comprising continuous filaments of one resin embedded in the other. This stream enters an annular space 12 defined between a housing 9 and a rotating mandrel 13 and is subsequently extruded as a tube 16, the shear effect caused by mandrel 13 producing a continuously differing orientation of the filaments from one surface of the tube to the other. In a second embodiment, Figs. 4 and 5 (not shown), a rod (21) is formed with the fibre angle decreasing from the axis of the rod to the circumference thereof, in a third embodiment, Figs. 6 and 7 (not shown) a film or sheet is formed where the fibre angle is zero at the surfaces and 90 degrees at the central plane of the sheet, and in a fourth embodiment, Figs. 8 and 9 (not shown), the housing 9 of Fig. 1 is provided with an inner wall (36) which rotates in the opposite direction to mandrel 13, the resulting tube having an intermediate layer (44) of fibre angle zero with increasing angles up to 90 degrees on both sides thereof, the increases being in opposite senses. Tubular films may be made by the normal inflation technique. Fibre sheets, filament sheets and yarns may be produced by wholly or partially removing the matrix material, e.g. by means of a solvent.
Patent GB-570271-A (GB)
Title: Improvements in or relating to the manufacture of carboxylic acid anhydrides
IPC: C07C51/56
Filed: 1943-08-23
Abstract: Carboxylic acid anhydrides are prepared by heating together the acid and acetic anhydride in the presence of an organic azeotroping agent, whereby the acetic acid produced is removed from the reaction mixture.  Suitable organic azeotroping agents are toluene, ethyl benzene and tetrachlorethylene.  Examples describe the preparation of stearic and 2-ethyl hexoic acid anhydrides, toluene being used as azeotroping agent.  The production of the anhydrides of lauric, palmitic, propionic, butyric, succinic, ethyl succinic and benzoic acids is referred to.
Patent GB-184430-A (GB)
Title: An improved combined mop and squeezer
IPC: A47L13/14
Filed: 1922-05-16
Abstract: 184,430. Airey, M., Airey, G., and Airey, E. May 16, 1922. Mop wringers. - In a mop wringer of the cylindrical-tube type, the tube d is formed at its upper end with a lip g and a constriction e to secure thereto a wooden or other collar f through which the mop handle passes loosely. A stop h is secured to the mop handle in such a position as to engage the collar when the mop head is nearly uncovered. The lower end of the tube is flared.
Patent GB-266183-A (GB)
Title: Improvements connected with the nailing of sheet metal plates to foundry patterns
IPC: B22C7/00
Filed: 1926-06-01
Abstract: 266,183. Turner, J. June 1, 1926. No Patent granted (Sealing fee not paid). Patterns. - In order to facilitate the attachment of stamped sheet-metal identification letters or numerals to foundry-patterns by brads, cone-shaped projections are formed around the holes in the flanges in such a manner as to grip the brads. Specifications 8980/00, [Class 3, Advertising &c.], and 12058/07 are referred to.
Patent GB-1220677-A (GB)
Title: Improvements in or relating to power-generating apparatus for incorporation in the human body
Inventor: TATE PATRICIA ANN
IPC: A61M60/468
Filed: 1967-03-23
Abstract: 1,220,677. Surgical pacemakers. PLESSEY CO. Ltd. 22 March, 1968 [23 March, 1967], No. 13827/67. Heading ASR. [Also in Division H2] Apparatus for the derivation of auxiliary power from the beat of a heart comprises a hollow cuff 1 to be secured around a blood vessel, the cuff having an outer wall which resists expansion while the inner wall will closely follow the peristaltic expansion and contraction of the blood vessel, the hollow cuff being filled with a liquid for the transmission of hydraulic power. As shown, for providing power to a pacemaker 7, the cuff 1 is of a synthetic plastics material fitted within a relatively rigid split collar 2 and arranged around an artery A, the cuff transmitting arterial pulses through a line 3 to a bellows member 4 which acts upon a transducer 5. The electrical output from the transducer is passed through a rectifier 8 to a battery 9 for energizing a cardiac pacemaker 7. In an alternative apparatus (Figure 1, not shown), an arterial liquid filled cuff (a) provides power to drive a motor (B), two hydraulic lines (e, f) transmitting pulses derived from the cuff as blood pressure waves (g) pass through it, the lines applying the pulses to the motor.
Patent GB-660870-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/50
Filed: 1949-05-24
Abstract: 660,870. Electric discharge apparatus. MULLARD RADIO VALVE CO., Ltd., and BROOKER, M. W. May 24, 1949, No. 13849/49. Class 39 (i). A cap 4 having a central pin 5 is sealed into an aperture in a glass envelope 10, and an electrode 1 having a corresponding pin 2 is mounted in position by welding the pins end-to-end. Projection welding may be used, i.e. the ends of both pins are chisel-pointed, and the two sharp edges held at right angles for the welding operation, which is improved if carried out in a protective hydrogen-nitrogen atmosphere. Fig. 6 (not shown) illustrates the invention applied to the anode of a mercury vapour rectifier.
Patent GB-370697-A (GB)
Title: Improvements in axial flow blade systems for steam or gas turbines
IPC: F01D1/24
Filed: 1931-05-11
Abstract: 370,697. Turbines. AKTIEBOLAGET LJUNGSTRÍMS ANGTURBIN, 17, Vastra Trõdgardsgatan, Stockholm. May 11, 1931, No. 13940. Convention date, March 24. [Class 110 (iii).] The axial blading of a L.P. turbine 21 of the combined-flow Ljungstrom type is divided such that in the penultimate stage an outer stream of steam or gas flows through guideblades 72 while the inner stream of working fluid flows through moving blades 69 and guideblades 71 which are supported by the outer guide-blades 72. The working-fluid of the two streams then flows through the last moving blades 70 to guide-blades 75 which direct the fluid towards the outlets 22 leading to condensers 38a, 38. Moisture is collected in a channel 74 and led through a pipe 73 to a preheater 20. Further moisture enters the preheater through a port 76. A welded partition divides the working fluid into two chambers 51, 52. The blades 70 may be supported in pairs by screwed rods 80, Fig. 3, and the blades may be of the same section throughout their lengths, or may be slightly twisted. The guide-blades 71, 72 may be split up into more than two sections. In a plant embodying the invention, Fig. 1, a H.P. turbine 28 exhausts to an I.P. turbine 31, through a pipe 30, and the I.P. turbine exhausts through pipes 33, 34, and branch pipes, to the L.P. turbine 21. Preheaters 35, 35a, 20 are in series. Steam tapped off through a channel 60, Fig. 2, is led to a chamber 61, through a conduit 37 to the preheater 35a, Fig. 1, and steam tapped off through the chamber 64 passes through a conduit 36 to the preheater 35. The preheaters are supported on the casings of generators 27, 32. The outer blades of the radial flow system have ring bonds with portions cut away and end-pieces 66 which counteract bending of the blades due to centrifugal force. The sum of the squares of the blade speeds in the outer passage 67, Fig. 2, lies between 0À7 and 1À0 times the sum of the squares of the blade speeds in the inner passage 68. It is stated that the plant illustrated is capable of an output of 100,000 k.w. at 3000 r.p.m. with an initial pressure of 100 atmospheres. The electrical generators may be replaced by compressors or other machines. The Parson's figures for the outer and inner steam passages, that is #Á<2>/h, Á being the blade speed and h the heat drop, may be made equal.
Patent GB-118909-A (GB)
Title: Improvements in or connected with Motor Tractors for Agricultural Purposes.
Inventor: PICK JOHN HENRY
IPC: A01B59/042
Filed: 1917-09-27
Abstract: 118,909. Pick, J. H., (trading as Pick Motor Co.). Sept. 27, 1917. Couplings f o r tractors. - A draught attachment for a plough &c. comprises a rocking - frame c, shown in plan, mounted on the axle of the tractor wheels a, and a turntable f pivoted thereon by the cross-bar d, one member of the turntable being connected to the implement by means of a frame m which can be adjusted laterally. The rocking-frame c may be raised and lowered, and the motor may be arranged as described in Specification 117,699, [Class 79 (i), Locomotives &c.].