baber/WOPTO huggingface dataset:
Patent GB-651103-A (GB)
Title: Improvements in or relating to a substructure for use in an oil well derrick
IPC: E21B15/00
Filed: 1948-11-04
Abstract: 651,103. Substructures for oil well derricks. MOORE CORPORATION, L. C. Nov. 4, 1948, No. 28667. Convention date, Nov. 15, 1947. [Class 78 (iv)] A shown in Figs. 1 and 3 a substructure for an oil well derrick is supported on the concrete walls 4 of a rectangular cellar into which opens a well 3 drilled by means of a derrick, the legs 1 of which are supported on foundations 2 at considerable distances from the cellar. The substructure comprises posts 11 each comprising an I-section beam notched at its upper end to receive an I-beam 7 projecting beyond the posts 11. The beams 7 are connected by shallower I-beams 9 and by further I-beams 8 having the same depth as the beams 7, the whole forming a base 6 only wide enough to span the cellar 4. Braces 12 are connected to the posts 11 and beams 7. Brackets 18 are secured to the ends of the beams 7 and support end sills 16 which, as shown in Fig. 1, project further at one side of the structure than at the opposite sides. The end sills 16 and further sills 16 are joined at their ends by side-members 17 to form a frame for a floor, which frame is provided with a slot defined by parallel stringers 21 secured to the sills 16 which are suitably interrupted, the slot serving to support the rotary table skids. A support for a pipe setback is formed by I-section cross-members 13. The draw-works are mounted on an independent support close to the well and at that side of the substructure which projects least from the side of the base 6. Further braces (not shown), provide further support for the frame for the floor.
Patent GB-1325156-A (GB)
Title: V-triazoles
IPC: C08K5/3472
Filed: 1970-06-12
Abstract: 1325156 Triazolyl-coumarin CIBA-GEIGY AG 12 June 1970 [13 June 1969] 28671/70 Heading C2C [Also in Division D1] Compounds of formula wherein R is hydrogen, chlorine or a C 1-14  alkyl group, are prepared by reaction of a compound to form a v-trazole-l-oxide, and either (a) reacting this with hydrogen chloride or (b) reacting this with sulphonyl chloride to form the 5- chloro-v-triazole-1-oxide and reducing this with nascent hydrogen, for example using zinc and acetic acid. The products are optical brighteners (see Division Dl). Isonitrobenzalacetone - [3 - phenylcoumarinyl- 7]-hydrazone is prepared by reaction of isonitroso - benzal - acetone with 3 - phenyl - 7- hydrazinocoumarin.
Patent GB-482804-A (GB)
Title: Improvements in cases for wrist watches
IPC: G04B37/14
Filed: 1937-10-21
Abstract: 482,804. Watch cases. NICOLET, G., (trading as STAUFFER, SON, & CO.). Oct. 21, 1937, No. 28700. Convention date, Sept. 18. [Class 139] On the front portion 1 of a wrist watch case, lugs 2 for receiving the loops of the bracelet cords are each formed with a transverse recess 3 open on the inside wall of the lug, the other portion 4 of the case having at each end a lug adapted to close the opening in the adjacent lug 2 of the front portion. Interlocking means 5, 6 may be provided to strengthen the case.
Patent GB-150923-A (GB)
Title: Improvements in internal combustion turbines
IPC: F02C5/06
Filed: 1919-11-19
Abstract: 150,923. Schmidt, F., Girard, E. L., and Messlein, M. A. Nov. 19, 1919. Jet-wheels; reversing; working-fluid supply.- An internal-combustion jet-wheel 25 with staggered vanes 31 as shown in Fig. 14 is surrounded by a number of combustion chambers 35, which are fed by compressor cylinders 50 and discharges on to the vanes through reversing-valves 37 and curved slide valves 40. The gases exhaust through ports 47. The compressor pistons 51 are connected in pairs by rods 70, which are reciprocated by links 103, 102, and a crank 93 driven by a gear 91 in mesh with a gear 90 on the rotor shaft 27. For the purpose of periodically shutting off the compressor cylinders from the combustion chambers, each piston 50 is adapted to be oscillated on its rod so as to cut off its supply conduit 53 from the port 58 leading to the combustion chamber. This oscillation is effected by a cam- 62, Fig. 7, engaging a pin 60 on the piston, and the pin 60 is used also (a) to actuate the slide valve 40 by striking a 'bell-crank lever 81, and (b) to open the inlet valve 57 of the compressor cylinder 50 by striking a lever 112.
Patent GB-503802-A (GB)
Title: Improvements in adjustable chairs and the like
IPC: A47C1/027
Filed: 1937-10-21
Abstract: 503,802. Adjustable seats. MELDAN, A. H. Oct. 21, 1937, No. 28737. [Class 52 (ii)] In an adjustable seat of the kind comprising a pivoted back, a sliding seat and means for causing the weight of the occupant to oppose the angular movement of the back, the said means comprises a friction brake device in the form of a rotatable or slidable member driven from and by the tilting movement of the backrest, and a second brake member in frictional engagement with the first member and adapted to be pressed against it by the weight of the occupant. For example, a pair of rails 11, Fig. 1, are connected by hinged links 12 to the lower end of the pivoted back 5. A cross rail 16 secured to the seat frame 2, which is pivotally attached at 3 to the fixed chair frame, bears at its ends on the rails 11, friction material 17 being provided on the cross rail 16. Similar material 10 is also provided on the lower rail 7 of the frame, and the rails 11 are thus gripped to resist movement of the back.' Springs 18 may be provided to return the back to normal position. In a modified construction, drums 19, Fig. 2, are secured to the back rest with their centres in line with the hinges on which the latter is pivoted to the seat frame 2. The seat frame is suspended at the rear by brake bands 25 secured to the fixed frame and passed round the drums. Tension springs 28 may also be provided to raise the seat slightly when not occupied. In other constructions segmental blocks or drums are rotatably mounted on the pivoted seat frame and bear against brake blocks on the fixed frame and are connected to the pivoted back by links or toothed gearing.
Patent GB-1236491-A (GB)
Title: Web feed registration means having a coarse and fine feed
Inventor: SCULLY JOHN WILLIAM
IPC: B65H23/188
Filed: 1968-06-17
Abstract: 1,236,491. Feeding webs. PNEUMATIC SCALE CORP. 17 June, 1968, No. 28759/68. Heading B8R. Apparatus for advancing a printed web to a package forming machine (12, Fig. 1) includes a metering roller 18 rotated one revolution per cycle of its machine, the roller 18 having a circumference substantially less (e.g. # inch) than the printed format on the web, means operative each cycle for effecting a further rotation of the roller 18 to effect a net advance slightly less (e.g. <SP>1</SP>/ 32  inch) than the printed format, control means including a registration mark detector, and means responsive to the control means when an unacceptable misregistration occurs for effecting a still further rotation of the roller 18 to feed an additional increment providing a net advance slightly more than the printed format. The web is withdrawn from a supply roll 16 by the metering roll 18 co-operating with a pressure roller 20, and passes through adhesive applying rollers 54, 56, over a photo-sensitive control unit 34, and through a looping device 24 including a looping roller 64, before being intermittently advanced by nip rollers 26, 28 into the package forming machine 12. The looping device absorbs the slack in the web between the metering roller 18 and the intermittent feed rollers 26, 28. The drive for the metering roller 18 includes three overrunning clutches (112, 114, Fig. 3) and 140, Fig. 2. The first clutch (112) rotates the metering roller 18 one revolution per cycle of the machine, and is driven via a chain and sprocket drive 44 from a cam-shaft 46, which in turn is driven by a chain and sprocket drive 47 from the main cam-shaft 48 forming part of the machine. The second clutch (114) effects a further rotation of the roller 18, and is driven via a linkage (120, 122, 124, 132, Fig. 6) driven by a cam (136) fixed to the cam-shaft 46. The third clutch 140 effects a still further rotation of roller 18 when unacceptable misregistration occurs, detected by the photosensitive control unit 34; and is driven via a linkage 146, 148, 150, 156, a cam 160 on camshaft 46 co-operating with a follower roller 158 mounted on link 156. A slot and link pin, 152 and 154 for the third clutch 140, provides for adjustment of the drive of the second and third clutches. The third clutch 140 is prevented from operating, when not required to, by a latching mechanism 164 which includes an arm 166 provided with a latch bar 168, the arm 166 being pivotably mounted on shaft 126 and provided with an extension 170 adjustably secured to link 150 by a pin and slot connection 172. A fluid pressure cylinder 180 controlled via a valve 184 by the control unit 34, releases the latching mechanism 164 when unacceptable misregistration occurs.
Patent GB-413630-A (GB)
Title: Improvements in carburettors
IPC: F02M19/12
Filed: 1932-10-14
Abstract: 413,630. Spray carburetters. WATCHORN, R., 404, West Highland Avenue, Redlands, California, U.S.A.-(Assignees of Jolmston, H. A. ; State Street, Redlands, California, U.S.A.) Oct. 14, 1932, No. 28777. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 16, 1933]. [Class 7 (iii).] In a carburetter, an air stream whirling about an axis of rotation and travelling therealong has fuel injected into it on the line of the axis. A converging spiral passage then forces the air and fuel into spiral rotation from which they pass through a port in a cylindrical throttle valve. Inclined fins 20, Figs. 1 and 5, impart a rotary motion to air sucked through an inlet 16 past a conical valve plug 22 normally held against a seat 15 by a spring 23, the tension of which can be increased, to use the plug as a choke, by displacement of a central rod 25 by a stud 35 on a lever 34 operated by an external lever 31, Fig. 2. Tapering walls 39, 41 constrain the air to swirl in vortex from towards a fuel valve 50 located substantially at the apex of the vortex, the mixture then pursuing a narrowing spiral course between an external spiral wall 61 and an inner cylindrical wall 63 which is cut short at 66 to leave an entrance port 65 to a cylindrical throttle valve 69. The throttle valve 69 is rotatable by an arm 101 to control the port 65 and to its spindle 62 is secured an arm 103, the effective length of which is adjustable by a slide 106 connected at its outer end by a ball and socket joint 109 to an adjustable link 111. The opposite end of the link 111 engages a bell crank lever 118 adapted to raise, against spring pressure, a needle valve 53 which co-operates with the coned end 51 of a fuel nozzle 46. The arm 103 is adjusted angularly on the spindle 62 to determine whether movement of the throttle shall effect rapid or slow opening of the fuel valve. The spiral whirl of the mixture is converted to a helical motion as it passes downwards through the open bottom of the throttle valve into a spherical expansion chamber 85 and a stepped spiral cone member 91, loosely mounted on the spindle 62 and lightly pressed against the entrance 100 to the spherical chamber 85, deflects the whirling mixture outwards, whereupon the lower half of the chamber 85 contracts it again before passing it to the port 86 of the induction manifold, the arrangement ensuring thorough vaporization and mixing. In a modification, a choke valve 168, Fig. 9, normally closes the entrance to helical passages 140 leading to a mixing chamber 142, the walls of which first diverge and then converge to form a conical seat 146 for a throttle valve 154 in the form of a double cone. The upper cone 153 of the valve 154 confines the whirling air and directs it past a fuel nozzle 180 to the space between the raised valve 154 and the seat 146, where it acquires a vortex motion which continues into the engine cylinder.
Patent GB-154568-A (GB)
Title: Improvements in or relating to photographic and cinematographic projection apparatus
IPC: G03B21/60
Filed: 1920-10-11
Abstract: 154,568. Marion, A. V. F. Nov. 27, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 149,633. Optical-projection apparatus.-A refracting optical system of any suitable kind is placed between an optical-projection screen and the observers to ccnvey to them a sense of relief in the projected picture. The system may comprise a plurality of plates having parallel surfaces, or converging lenses of any suitable form, such as spherical, elliptical, cylindrical, conical or toric, and is at least equal in size to the projection screen. The axis of the system may be inclined to the proiection screen instead of being perpendicular thereto, and the projection screen may be opaque- or transparent.
Patent GB-252750-A (GB)
Title: Improvements in or relating to the earthing of electrical apparatus
IPC: H02H11/00
Filed: 1924-12-02
Abstract: 252,750. Switchgear & Cowans, Ltd., and Neep, G. H. Dec. 2, 1924. Protective arrangements.- In the event of failure or disconnection of the earthing connections of the trailing supply cable of electrical machinery, particularly coalcutting machines, the main circuit-breaker is tripped or released by the actuating coil which is connected across the supply pressure and in series (or in inductive relation with) an additional or separate impedance coil normally short-circuited by the safety earthing circuit of the cable. As shown in Fig. 1, the actuating coil 12 of the main circuitbreaker 11 is connected in series with the impedance coil 14 is arranged in inductive relation with the first and normally short-circuited by the earthing connections comprising the earth conductor 9 in the trailing cable and the cable sheathing 10. With the earth circuit intact, the impedance of the coil 13 is relatively low and sufficient current flows through the coil 12 to permit the closure or maintain the closure of the circuit-breaker. If the earth circuit is interrupted, the current in the coil 12 is reduced and the circuit-breaker caused to open. The coil 12 may be energized inductively from the circuit of the impedance 13 instead of being connected in series therewith. The coil 12 may take the place of the impedance coil 13 which may be dispensed with. In the arrangement shown in Fig. 4, the impedance 13 is connected in series with another impedance 13<a> conductively related with it; the neutralizing winding 14 is inductively related to the winding 13 and is connected to the earth.connection and the circuit-breaker coil 12 is supplied from a secondary 18. Specification 209,831 is referred to. Reference has been directed by the Comptroller to Specification 246,893.
Patent GB-888505-A (GB)
Title: Improvements in and relating to electrical-motor-driven pump units and their application to the cooling of electrical switchgear
Inventor: BOLTON ERIC
IPC: H02K5/132
Filed: 1957-09-13
Abstract: 888,505. Electric motors. ENGLISH ELECTRIC CO. Ltd. Sept. 11, 1958 [Sept. 13, 1957], No. 28857/57. Class 35. [Also in Group XXXVII] An electric motor-driven pump unit, for circulating cooling oil in a low-oil-content circuit-breaker, comprises a pump 31 driven by a shaded pole induction motor, both mounted in a common housing 30. The motor comprises a squirrel-cage rotor 34 and a laminated magnetic stator 32 bolted to the housing 30 and carrying shading rings 33 on its split poles. A conductor 38 has one end bolted to the housing and the other to a bracket 39 connected to a terminal 37, these two members being insulated from the housing 30, so that the bracket, conductor and housing form a single-turn energizing winding for the stator. This winding is in series with the breaker contacts and the motor operates at approximately constant speed when the current exceeds a certain value. The housing 30 forms part of the breaker oil-circulation path, the oil serving to insulate the conductor 38 from the stator 32 and to cool the conductor.
Patent GB-1506113-A (GB)
Title: Feeder for loose leaf or folded sheets of paper or other pliable material
IPC: B65H5/24
Filed: 1976-07-12
Abstract: 1506113 Separating and feeding sheets GRAPHA-HOLDING AG 12 July 1976 [12 July 1975] 28909/76 Heading B8R Sucker 22, or a second sucker operating alternately with sucker 22, pulls the edge of a sheet to be fed into recesses in rotating feed wheels 12, so that it is engaged by projections 27 at the edges of the recesses and forced downwards to be grasped between the feed wheels and roller 9. After that the rotation of the feed wheels pulls the sheet out from below the feed pile. The sheets leave the feed wheels as a shingled stream, and may be pulled apart by passage of the stream between accelerator rollers. The sheets may be fed to the pile in an initial shingled stream by means of a conveyer belt, so that the apparatus acts to manipulate the sheet stream.
Patent GB-1043334-A (GB)
Title: Improvements in or relating to amplifying circuit arrangements
IPC: H03F3/30
Filed: 1965-07-08
Abstract: 1,043,334. Transistor amplifying circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 8, 1965 [July 11, 1964], No. 28993/65. Heading H3T. In a class B push-pull amplifier comprising two series-connected output transistors, preceded by a phase inverting transistor, the quiescent current is stabilized by negative feedback from the common point of the output transistors to the base of the phase inverter, the collector load of the latter having positive temperature coefficient. The load is preferably formed as a P-type layer on the same substrate as the silicon transistors and may have a coefficient of +% per C.
Patent GB-404913-A (GB)
Title: Improved method of and machine for forming ribbons of glass having spaced bosses thereon
IPC: C03B9/12
Filed: 1933-10-19
Abstract: 404,913. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Weber, W. C.; 209, Wall Street, Corning, New York, U.S.A.) Oct. 19, 1933, No. 29005. Convention date, Dec. 5, 1932. [Class 56.] Relates to apparatus for forming a ribbon of glass with spaced bosses thereon, for use in a glassware-forming machine of the kind described in Specifications 276,606 and 334,453, [both in Class 56, Glass]. The present invention consists of apparatus for forming a ribbon in which the amount of glass connecting the bosses, which is not formed into ware, is reduced to a minimum. The ribbon-former is supported below the outlet of a feeder forehearth 11 and comprises of two rolls 24, preferbly of conical shape, which are rotated in unison with one another in the direction indicated by the arrows. Helical grooves 25 are formed on the surfaces of the rolls and the distance between the convolutions is increased towards the vertices of the rolls, so that the ribs 26 formed by the grooves become narrower towards the bases of the rolls. The two ribs 26 run against one another, as shown in Fig. 1, and a stream 27 of glass, as it issues from the forehearth 11, is deposited on the rolls at the point where the ribs 26 are thinnest. The grooves form pockets in which the glass accumulates to form bosses ; and the glass that connects these bosses is stretched, as it travels along the rolls, by the increasing width of the rib 26, and is thus reduced to a minimum. The bearings of the rolls are inclined downwards towards the conveyer 12 on which the glass ribbon is deposited. The rolls may be hollow and may be cooled by water circulated through their interiors.
Patent GB-470145-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/34
Filed: 1936-10-26
Abstract: 470,145. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 26, 1936, Nos. 29059, 29060, 29061, and 29062. Convention dates, Oct. 25, 1935, Nov. 2, 1935, Nov. 2, 1935, and Nov. 23, 1935. [Class 38 (ii)] In polyphase transformers the core structure is arranged so that two sets of polyphase fluxes phase displaced by 30‹ may circulate, and the relative reluctance of the different core parts is so determined either by dimensioning, selection of material, or by loading by auxiliary windings that for each closed flux path substantially equal and opposite magnetomotive forces are required for the development of 5th and 7th harmonic fluxes. Thus the magnetizing current may be made substantially free from these harmonics. Figs. 1 and 8 show alternative forms of core in which each winding limb 1, 2, 3 is joined to each of the others through separate yokes 12, 23, 31, whereby one set of fluxes circulate in the yokes 30‹ phase displaced from the fluxes in the winding limbs. Fig. 13 shows another arrangement in which the same effect is obtained by forming slots 90 in the yokes, the slots extending over unequal parts of the limbs so as to equalize the effective length of all the yoke portions. In other arrangements conductive inserts, or auxiliary windings formed by linking together a row of clamping bolts are used to split up the yokes into parts effectively connecting each limb to each of the others. The Specification further demonstrates that a core having three wound limbs and two unwound limbs united by common yokes may be made to form an equivalent of the other core structures referred to. Auxiliary windings connected in a closed circuit or individually connected to adjustable saturated chokes may be provided on the yokes to enable the magnetomotive forces required for the harmonics in question to be adjusted. In order to compensate for 5th and 7th harmonics present in the line to which the transformer is connected, the core structure may be designed so that the 5th' and 7th harmonic components of the magnetomotive forces do not completely cancel out but leave a resultant which absorbs the harmonics in the magnetizing current.
Patent GB-140726-A (GB)
Title: Improvements in or relating to boring tools
IPC: B23B5/38
Filed: 1919-11-22
Abstract: 140,726. Brown, G. J. Nov. 22, 1919. Boring - bars. - A boring-bar for taper work consists of a bar a slotted at b to receive a frame c which carries the feed-screw and tool-head; the frame is pivoted at one end j to the bar and is adjusted at its other end to vary the taper by a screw bolt m, bolts n securing the frame in any adjustable position. Keys 2 and x are provided for causing the feed, and star wheelsmay be placed on these keys for automatic feeding.
Patent GB-816620-A (GB)
Title: Method for treating fluorides by sublimation and apparatus for the working thereof
IPC: C01B9/08
Filed: 1956-09-24
Abstract: Metal fluorides, particularly zinc and zirconium fluorides, are sublimed in an apparatus in which a low pressure prevails.  A vessel containing the fluorides is arranged below a condensing plate made of a material capable of withstanding the action of fluorides and which closes the vessel in a non-sealing way.  The plate is indirectly cooled by a cooling device, the distance between the plate and cooling device being variable, thus enabling the temperature of said condensing plate to be adjusted.  In a modification of this apparatus guiding surfaces, e.g. skew holes, are provided to give an upward helical movement to the fluoride vapours from the vessel, and prevent the walls being contaminated by the volatile materials.