baber/WOPTO huggingface dataset:
Patent GB-1029203-A (GB)
Title: Apparatus for cooling foundry sands in process
IPC: B22C5/08
Filed: 1963-04-24
Abstract: 1,029,203. Treating mould and core material. PEKAY MACHINE & ENGINEERING CO. Inc. April 24, 1963 [May 4, 1962], No. 16220/63. Heading B3F. [Also in Division G1] Heated foundry sands 12 in transport on a reach 14 of a conveyer are cooled by application of fluid through a plurality of valves 44, the valves being selectively controlled by means of an array 24 of temperature-sensing elements. As described, elements 24 are thermistors, each being enclosed in a copper sheath, which is mounted in a steel holder. Each thermistor is connected in a separate bridge circuit (Fig. 4, not shown), all the bridges having a common adjustable resistance 37 in one arm. Fixed resistors 151, 152 in each bridge are selected so that the bridges balance at different temperatures. Each bridge controls a separate relay 161, 162, 163, 164 through diodes 196. As the temperature is raised each relay is closed in turn to operate corresponding solenoid-operated valves 44 controlling the flow of coolant (water) through a common header to nozzles 46. In addition an arm 52 riding on the surface of the sand controls the pressure of the fluid in accordance with the volume of sand, by means of a mechanical linkage 62 and pressure-regulating valve 48.
Patent GB-1105056-A (GB)
Title: Improvements in or relating to electrical delay lines
Inventor: HOBBS DONALD SYDNEY
IPC: H03H7/34
Filed: 1965-04-15
Abstract: 1,105,056. Delay lines. MULLARD Ltd. 12 Jan., 1966 [15 April, 1965], No. 16250/65. Heading H1W. [Also in Division H3] In a method of making sectioned electrical delay lines, a continuous conductive winding 14, preferably of self-fluxing wire, is formed on an insulating former 1 and subdivided into sections by the application of conductive shortcircuiting elements 15. These elements may comprise patches of solder and in a lumpedconstant delay line capacitors (23) are attached to the winding by the solder patches, the other ends of the capacitors being connected to a busbar (26) (Fig. 5, not shown).
Patent GB-884401-A (GB)
Title: Improvements in or relating to apparatus for measuring the temperature of a solid body
IPC: B65D35/26
Filed: 1959-05-12
Abstract: 884,401. Thermocouple mountings. CENTRAL ELECTRICITY GENERATING BOARD, PEPLOW, M. E., WEAVER, J., and DAWSON, J. H. April 1, 1960 [May 12, 1959], No. 16284/59. Class 40 (1). The temperature of a solid body such as a superheater tube is measured by means of a thermocouple whose hot junction is sealed in a metallic sheath which in turn is welded to the solid body by using fusible metal powder. In Fig. 1 a superheater tube 10 is subjected to the flow of furnace gases 11 and its temperature is measured by a thermocouple hot junction 12 located on the side facing the flow. The wires leading to the junction are embedded in a mineral insulating material contained in a steel sheath whose tip is narrowed and flattened and then fused to the tube by means of a fusible metal powder which encloses the whole of the flattened portion of the sheath except where it is in direct contact with the tube. The sheath 13 extends over the whole length of the leads to the junction and is held in thermal contact with the tube by clips 15; it is preferably led round to the downstream side of the tube (as shown) to protect it from erosion by particles in the gas stream. If the thermocouple is small it will not appreciably affect the heat transfer from the gas to the tube, but if necessary a slot can be cut to accommodate it (Fig. 3) and the excess fused metal ground off to restore the original profile of the tube. The sheath carrying the leads may also be located in a slot which is preferably shaped so that it reduces the proportion of material removed from the tube in the axial direction. The cable can be protected from buckling in the hot gas stream by enclosing it in a tube which is clipped or welded to the superheater tube. The thermocouple can be first attached to a separate piece of tube which is then welded into position in the superheater.
Patent GB-226249-A (GB)
Title: An automatic regulator for electric, steam or hot water radiators, the same being also applicable for gas heating, fire alarm devices, refrigerating control and other temperature control uses
IPC: G01K5/16
Filed: 1923-06-23
Abstract: 226,249. Maclaren, R. June 23, 1923. Mercury switches.- A thermostatic regulator for electric, steam, or hot water radiators applicable also to gas heating, fire alarm and refrigerating control devices comprises a mercur container F with a capilliary extension G in which an electrode K is located, and an adjustable plunger H for varying the working temperature having a concave face and adapted to slide within a cylinder A having a dome-shaped end Q terminating in a capilliary bore S leading to the container F.
Patent GB-915223-A (GB)
Title: Tools for pressure forming the teeth of toothed elements
IPC: B21H5/02
Filed: 1960-05-09
Abstract: 915,223. Rolling. MICHIGAN TOOL CO. May 9, 1960 [May 14, 1959], No. 16359/60. Class 83 (4). Apparatus for rolling gear-teeth, splines, &c., comprises a substantially cylindrical toothed platen 1 adjustable angularly to expose unworn parts of the teeth. The work W is fed axially and rotated between centres 5, 9, Fig. 2, by traverse in opposite directions of opposed cylindrical platens 1, 3. Traverse is by adjustable cylinders 23, 24, controlled by a valve (Fig. 3, not shown). The platens are disposed between sloping surfaces 70, 72, and resilient bumpers 64 on slides 50, and have indexing pockets 78 at each end engaged by a pin 74. For an even number of splines &c. the operative platen-teeth are in vertical alignment when the work is introduced ; an odd number results if the teeth of one platen are between those of the other. Axial adjustment of the platens is by a screw 80 between one end of each platen and an abutment 54 and shims between the other end and an abutment 52. Shouldered work W<SP>1</SP>, Fig. 9, may be toothed by platens T recessed at 92. Specification 915,224 is referred to.
Patent GB-1416031-A (GB)
Title: Alarm clock mechanism
IPC: H01H43/10
Filed: 1973-04-05
Abstract: 1416031 Time switches GENERAL ELECTRIC CO 5 April 1973 [7 April 1972] 16400/73 Heading H1N [Also in Division G3] In an alarm clock mechanism having two coaxial cam members 219 and 220 which are mutually axially movable by spring force at a predetermined relative angular position to actuate a control mechanism (such as a vibrator or a switch), one of said cam members 219 supports a cam follower 222 which is rotatable therewith for co-operation with axially raised and lower cam surfaces of the other cam member 220 to permit their relative axial movement, and said cam follower 222 is mounted for movement with respect to the cam member 219 on which it is supported for permitting said follower 222 to remain on the lower cam surface so that the clock mechanism is not required to restore said follower 222 to said raised surface against the spring force. As shown, cam member 220 is carried by a gear 218 which is driven at one revolution in twelve hours by timer pinion 224 and is mounted on a shaft 242, the front end of which is slidable in a bore (Fig. 6, not shown) in shaft 230. A switch blade 202 acts on shaft 242 to urge cam 220 into abutment with follower 222. Cam member 219 together with indicator disc 234 and knob 232 are secured on shaft 230 and allow the angular position of follower 222, and hence the operating time, to be set manually. The follower 222 comprises a sheet metal angle piece (308, 310, Figs. 9 and 10, not shown) passing through a slot in member 219 and held in the position shown by a leaf spring 252 but able to pivot on member 219. After dropping into the recess, or lower cam surface, of cam 220, and thus allowing contacts 206, 208 to close, follower 222 is pivoted slightly outwardly by the continuing rotation of cam 220 to remain on its periphery. Thus no appreciable addition is made to the torque requirements of the clock motor, the follower 222 being returned to the raised surface of cam 220 by manual rotation of a cam 216. This acts on one arm 264 of a lever pivoted at 256, 258, the other arm 260 then moving cam 220 and shaft 242 rearwardly. Cam 216 may be left in this position when it is desired to prevent timed closure of the contacts.
Patent GB-953774-A (GB)
Title: Improvements in electron discharge device
IPC: H01J19/38
Filed: 1962-04-30
Abstract: 953,774. Thermionic valves. GENERAL ELECTRIC CO. April 30, 1962 [May 1, 1961], No. 16403/62. Heading H1D. A grid assembly includes a grid support ring 8 and a grid terminal ring 6, which have unequal coefficients of expansion, are in contact only over diametrically opposed portions 32, and fuse together at elevated temperatures during tube processing, the arrangement being such that upon contraction, the grid support ring is distorted in such a way that parallel grid wires 10 stretched thereacross are tensioned. As shown, the triode envelope includes electrode terminals 2, 6, 14, 24 of titanium, and insulating portions 4, 12, 18 of forsterite. The grid terminal 6 includes ears 32, 32<SP>1</SP>, which extend arcuately for 60 degrees each, and during tube processing at 800‹ to 1100‹ C., fuse to the tungsten grid support ring 8. Since the radial contraction of ring 6 is greater than that of ring 8, ring 8 is compressed in a direction perpendicular to the wires 10, and the wires 10 are correspondingly tensioned. The spacing between grid wires 10 and cathode 16 is determined by a molybdenum or tantalum spacer 34. The grid includes 143 tungsten wires at a density of 736 per inch.
Patent GB-796660-A (GB)
Title: H.f. electrical wave guide coupling arrangement
Inventor: LEWIN LEONARD
IPC: H01P1/213
Filed: 1956-05-28
Abstract: 796,660. Waveguide couplings and band-pass filters. STANDARD TELEPHONES & CABLES, Ltd. May 28, 1956, No. 16428/56. Class 40 (8). A metal circular waveguide 1 is connected to at least one circumferentially disposed waveguide 2, forming a substantially complete turn therearound, through cophasally acting coupling apertures in the common wall spaced circumferentially with at least one aperture per free space wavelength at the mean operating frequency of the waveguide 2. The coupling may function as a band-pass filter. The common wall forms the shorter side of the rectangular waveguide 2, Figs. 1 and 2, and the slots 3 are alternately inclined in opposite directions and are preferably spaced at intervals of one half of the mean operating free space wavelength of the guide 2. One end of the guide 2 is connected to an input or output circuit and the other end is terminated by a short-circuiting element 5 preferably spaced from the nearest slot by substantially one quarter of said wavelength of the guide 2. A conductor 6 extends axially through the guide 1 and is spaced radially therefrom by between a half and a whole of said wavelength of the guide 2, except at the ends and away from the region of coupling with the guide 2 and any similar feeder guides. Fig. 3 illustrates a directional coupling in which two rectangular guides 2, 2<SP>1</SP>, disposed around a circular guide 1 are spaced axially thereof by three (or other odd number of) quarter wavelengths at the mean operating frequency in the guide 1. The guides 2, 2<SP>1</SP> are connected to a common circuit through a hybrid T-junction displaced from the centre line between the guides 2, 2<SP>1</SP> by one-eighth of the wavelength in the latter at the mean operating frequency. If energy is fed into the arm 13 of the T, it will flow along the guide 1 only in the direction 15, and if supplied through the arm 14 it will flow only in the direction 16. The efficiency of the coupling arrangement as a band-pass filter is discussed mathematically, and it is shown that an effective filter is obtained by providing at least one resonant cavity between the rectangular guide and the circuit connected thereto, e.g. the resonators 19, 20, Fig. 3.
Patent GB-760066-A (GB)
Title: An improvement in or relating to textile waste-opening and other textile fibre processing machines
IPC: D01B3/02
Filed: 1954-06-03
Abstract: 760,066. Magnetic separators. EARNSHAW, A. June 8, 1955 [June 3, 1954], No. 16434/54. Class 117 A magnetic separator for use in a textile fibre processing machine comprises a non- magnetic bar 13 on which are secured a series of permanent horseshoe magnets 12 having their poles on each side of the bar 13 arranged alternately,. Fig. 2. The curvature of the magnets is such as to form a gap of constant width: between each magnet and the top shaft 10 of a waste opening machine. Material being treated travels through these gaps at right angles to the bar 13, and passes in succession the sets of poles either side of the bar. Specification 722,798 is referred to.
Patent GB-1105594-A (GB)
Title: Improvements in shaft seals
Inventor: STEPHENS JACK ANTHONY
IPC: F16J15/34
Filed: 1966-04-14
Abstract: 1,105,594. Mechanical seals. TRISTS MOULDINGS & SEALS Ltd. 3 April, 1967 [14 April, 1966], No. 16449/66. Heading F2B. In a shaft seal comprising a sleeve 14 slidably mounted around a rotary shaft 1 and carrying a sealing ring 15 urged by spring pressure acting axially on the sleeve into contact with a tapered surface 8 rigid with the shaft, the shaft housing 2 is provided with a liner 9 of non- corrodible material and the sleeve is sealed to the liner by two axially-spaced sealing rings 18 and 26 forming an annular space 30 between the sleeve and the liner which is filled with grease. The ring 18 is an 0-ring housed in a groove 19 in the sleeve and the ring 26 is a felt washer clamped in a recess 28 in the liner. The surface 8 is formed on a ring 4 made in halves joined by bolts 5 and the sleeve 14 is urged towards the ring 4 by springs 23 compressed by nuts 25 on studs 13 which project through notches 22 in a flange 21 on the sleeve. Grease is injected into the space 30 through a passage 31 in the liner. The sleeve 14 is of glass fibre reinforced polyester resin and the liner 9 is of stainless steel.
Patent GB-846576-A (GB)
Title: Improvements in or relating to pressure vessels
Inventor: WOOTTON WILLIAM ROBERT
IPC: F17C13/06
Filed: 1957-05-27
Abstract: 846,576. Closure for resisting fluid pressure. BABCOCK & WILCOX Ltd. May 27, 1958 [May 27, 1957], No. 16700/57. Class 123(1) In a pressure vessel having a container 1 and a closure 3, sealing is effected by a soft iron ring 13 and by auxiliary external means comprising annular strips 14, 16 welded to the closure 3 and the container 1 respectively, the strips being welded together at 18 to form a chamber 19 which collects fluid should a leakage occur. The closure 3 is held to the container by bolts 8 passing through flanges 7, 6 respectively, said bolts being tightened prior to the seal-welding of strips 14, 16. A passage 20 connects the chamber 19 and the clearance space between faces 4, 5 to an indicator 23 and a valve 24 allows exhaust of surplus fluid. Welding of the strips 14, 16 to the closure 3 and the container 1 respectively is facilitated by annular grooves 29, 30, 25, 26 which forms tongues 28, 27 for engagement by said strips. Alternatively the tongues may be replaced by annular rings welded to the closure 3 and the container 1 respectively, the strips 16, 14 being welded thereto. The chamber 19 is connected to the indicator 23 and the valve 24 through a passage 20 which passes through one of the annular rings. In a modification the closure member 43, Fig. 4, enters an opening 42 of the container 41 and is supported by a ring 56 fixed internally to the container. The member 43 inclines inwardly at 45 forming a stepped portion to receive a sealing ring 48, a backing ring 49 and a locking ring 47, the latter engaging a groove 46 in the container 41. The member 43 is raised until abutment with the locking-ring resists further movement and is then clamped in position by clamps 52 engaging the member 43 and an extension 53 of the container 41, the clamps being tightened by studs 54 passing therethrough and screwing into said member 43. Annular strips 59, 57, Fig. 5, are welded to the components 43, 41 respectively and are seal-welded at 61. In a further modification a packing-piece 70, Figs. 7 and 8, is interposed between the member 43 and the container 41 and is retained by a stud 83 passing through the clamp 52. Strips 72, 77 are welded at 74, 79 respectively to the piece 70 and strips 71, 76 are welded to the container 41 and the member 43 respectively. The strips 71, 72 and 76, 77 are seal-welded at 75 and 80 respectively forming chambers 81, 82 which are connected to an indication gauge 231 and valve 241 by a passage 201 in the piece 70 and by clearances between the components 41, 70, 43.
Patent GB-120763-A (GB)
Title: Improvements in and relating to Separators for Sand.
Inventor: HOPE GEORGE FOUNTAINE WEARE
IPC: B07B11/00
Filed: 1917-11-19
Abstract: 120,763. Hope, G. F. W. Nov. 19, 1917. Pneumatic separating; reciprocating or oscillating sieves.-In a separator for sand, a chamber 1 is divided by a series of screens 3 which can be removed or reversed without stopping the machine. The screens are introduced into transverse guides 2 within the chamber through openings in one or both walls, the openings being closed by airtight doors 4 held in position by means such as a wing-nut. An air space is arranged around the sides and top of the screens, and the dust-laden air is drawn by a fan or the like 8 into a settling chamber 7, or can be passed back into the grinding-mill. A fan 9 draws the air from the mill or the like into the separator. A device for giving a sharp reciprocating or shaking motion to the screens is provided, such device comprising, for example, a sliding rod 10 with forks 11 engaging with the top edges of the screens, the rod being reciprocated by a lever 12 which is rocked by a connecting-rod 14 from a crank-pin 15. The upper part 19 of the chamber 7 may be expansible under air pressure. Two chambers 1 preferably are employed, the current of sand-laden air being passed first through one chamber for a time and then shut off from this chamber and passed through the other chamber.
Patent GB-258953-A (GB)
Title: Improved manufacture of vermin-killer
Filed: 1925-07-02
Abstract: 258,953. DerrÚgibus, E. July 2, 1925. Vermin-destroying compositions; fumigants.- A composition which gives off fumes which are destructive to rats, insects, and other vermin is prepared by dissolving 30 gms. naphthalene in 950 c.c. coal tar by heating, and then adding 20 c.c. methyl salicylate. The composition in liquid form may be applied by spraying, pouring over floors, or for saturating sacking or tow, or may be converted into a paste or powder by adding inactive powders. Specification 4107/80 is referred to.
Patent GB-772578-A (GB)
Title: High grade paving asphalt
IPC: C08L95/00
Filed: 1955-06-14
Abstract: An asphaltic composition comprises oxidized asphalt, vacuum reduced asphalt, a hydrocarbon oil of a viscosity at 210 DEG F. of 70-1,000 S.U.S., and a copolymer of an aliphatic mono-olefin with an aromatic mono-olefin.  Preferably, the aliphatic mono-olefin contains 4 to 8 carbon atoms e.g. iso-pentane and iso-butylene, while the aromatic mono-olefin is e.g. styrene and its homologues or dihydronaphthalene. The term asphalt is defined and includes bituminous materials e.g. pitch and tar, but does not include aggregate or filler.
Patent GB-1205207-A (GB)
Title: Incandescent lamp
IPC: H01K1/32
Filed: 1969-04-01
Abstract: 1,205,207. Incandescent lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 1 April, 1969 [1 April, 1968], No. 17082/69. Heading H1F. In an incandescent halogen lamp comprising a quartz envelope 24 closed by a quartz disc 16, wherein the lead wires 20 to the filament 22 pass through and are attached to a sealing assembly of refractory metal cups 10 encapsulated in glass jackets 12 fused to quartz sleeves 14 fused in apertures in the quartz disc 16, the heat generated by the filament is reflected away from the assembly of refractory metal cups by a reflective refractory oxide coating on the exterior surface of the disc. This reflective coating is preferably zirconium oxide, but may be any other refractory, non-volatile, highmelting point, low vapour pressure, reflective oxide such as alumina or titania, and is brush painted on the disc surface in the form of a slurry and allowed to air dry. The refractory metal cups are made of molybdenum.
Patent GB-126242-A (GB)
Title: Improvements in Devices for Protecting Vehicle Wheels.
Inventor: KRZAN ANTON
IPC: B60C27/16
Filed: 1918-10-21
Abstract: 126,242. Krzan, A. Oct. 21, 1918, Tread bands, projections, and surfaces.-A protective armour for wheels consists of a dished metal disk 14, to the outer edge of which are hinged curved tread plates 20 detachably secured at the inner side of the wheel to hooked rods 27 connected by turn-buckles 33 to rods 32 threaded into a collar 30 on the axle 10. As shown, the plates 20 abut and are fitted with projecting tread grips 22.
Patent GB-769857-A (GB)
Title: Improved direction indicator control device for motor vehicles
IPC: B60Q1/42
Filed: 1955-06-15
Abstract: 769,857. Road traffic signals on vehicles. GENERAL MOTORS CORPORATION. June 15, 1955 [July 19, 1954], No. 17216/55. Class 118 (2). A direction indicator control switch of the automatic cancelling type for mounting on the steering column of a motor vehicle has an operating lever 14 attached to a ring 6, the assembly being rotatably mounted in a bore 12 in the housing. A switch 18 is positioned on the far side of the housing to the bore 12 and includes a slidable carrier 20 having bridge contacts which in the respective " on " positions bridge pairs of fixed contacts. The carrier 20 has an upwardly-extending operating pin 34 projecting through a slot 32 in the switch casing 22 and engaged by a notch 36 in the ring 6. Rotation of the handle 14 thus operates the switch. A spring-loaded detent 40 cooperates with a notch 46 and shoulders 58 and 60 to locate the switch in one of its three positions. The automatic return device comprises a U-shaped wire spring 80 having loops 82 and 84 at its ends which terminate in bentover ends 92 and 94 inserted in holes 96 and 98 in the ring 6. This spring co-operates with limiting stops 100 and 102 standing up from the ring and having their outer ends turned over to serve as retaining devices. A projecting pin 112 is attached to the underside of the steering wheel 108 and clears both loops 82 and 84 when the switch is in its neutral position. When the switch is operated to one side or the other the corresponding loop is moved into the path of the pin 112. Rotation of the steering wheel in a direction to effect the corresponding turn results in the pin 112 springing by the loop as the centre part of the U-spring flexes. When the wheel is turned in the opposite direction the pin 112 tends to push the loop inwards against its limit stop and then forces the loop and the switch ring 6 carrying it outwards as a unit thus freeing the pin from the loop and returning the switch to its neutral position. If the switch is jammed or forcibly maintained in the operated position the loop can be distorted to allow pin 112 to pass without damage occurring although considerably greater pressure is required. A modified form of U-shaped spring is shown in, and described with reference to, Fig. 6 (not shown), and a modified construction of detent holder and operating device for projection 34 with reference to Figs. 3 and 4 (also not shown).
Patent GB-678882-A (GB)
Title: Improvements in and relating to trolleys
IPC: B62B3/10
Filed: 1950-07-10
Abstract: 678,882. Hand trucks. ROBERTS, L. W., and UNIVERSAL POSTAL FRANKERS, Ltd. May 2, 1951 [July 10, 1950], No. 17219/50. Class 108(i) A trolley for holding sacks comprises a wheeled base 1 having a base plate 2 and provided with a vertical pillar 4 slidably engaging a tube 5 to which is secured a frame 6 formed with arms 7 projecting over the base. Hooks 8, 9 are used to secure the bag on the trolley and the screw 11 enables the height of the mouth of the sack to be adjusted.