baber/WOPTO huggingface dataset:
Patent GB-1527623-A (GB)
Title: Axial flow fan
IPC: F04D29/36
Filed: 1975-10-22
Abstract: 1527623 Axial-flow fans AXIAL INTERNATIONAL ESTAB 22 Oct 1975 [31 Oct 1974 14 Oct 1975] 43271/75 Heading F1C The blades of an axial-flow fan are each supported by cylindrical portions 19, 20, Figs. 2, 3 fixed to the blade root 13 and located in seats 7a, 8a in supports 7, 8 connected to plates 1, 2 which are held together by bolts 11 to form the hub, portions 19, 20 being rotatable about the blade axis relative to seats 7a, 8a to vary the pitch prior to the associated bolt 11 being tightened. Portions 19, 20 may be connected to blade root 13 by resilient taper pins, or they may be integral with the root. A hole 23 extending through portions 19, 20 and root 13 receives bolt 11 and is enlarged transversely of the blade to permit angular displacement of the blade about its axis. Each plate 1, 2 has a rim 4, 5 with cutaway portions defining holes 6 closed by discs 18 having apertures 18a through which the blades pass. For large fans the blade vanes comprise solid and hollow parts (28), (29), Fig. 7 (not shown), slotted together and fixed with glue, the vane being given a twist about its axis before the glue sets. Any unused holes 6 may be closed with block discs 18. In another embodiment, Fig. 5, the plates are formed as discs 1a, 2a and seats 7a, 8a are fashioned so that the blade axis is inclined to the radial direction to produce a moment on the blade from centrifugal force which resists aerodynamic forces. Bolts 26, 27 pass between discs 1a, 2a and supports 7b, 8b, and bolts 25 pass between the discs. The rims and discs 18 are eliminated and the space between the discs filled with spongy material.
Patent GB-1014030-A (GB)
Title: Improvements relating to air-cooled electric generators, driven through gearing
IPC: H02K9/00
Filed: 1964-10-29
Abstract: 1,014,030. Cooling gearing. DAIMLERBENZ A.G. Oct. 29, 1964 [Oct. 31, 1963], No. 44241/64. Heading F2D. In an arrangement having an internal combustion engine 1 driving an air-cooled generator 4 through a resilient coupling 2 and gearing 3, the generator cooling air is used to cool the gearing. As shown, a fan 9 draws air in through an inlet 10 and discharges through an opening 11. All or parts of the air issuing from the opening 11 enters a trough 12 and flows through a jacket 13 surrounding the gear-box to effectively cool the gear-box lubricant and the gearing. The cooling effect may be increased by roughening the walls of the gear-box or by providing cooling ribs or the like. Alternatively the gear-box may be provided with an oil reservoir and the air be used for cooling the gear-box oil by means of a coil or pipes passing through the reservoir or a jacket bounding the reservoir. The proportion of the generator cooling air delivered to the gear-box may be varied by varying a direct outlet to the atmosphere at the opening 11. The size of the outlet from the jacket 13 may also be adjustable.
Patent GB-1171536-A (GB)
Title: Improvements in or relating to the Production of Explosive Compositions
Inventor: MCKEE JOHN
IPC: C06B21/00
Filed: 1967-09-28
Abstract: 1,171,536. Mixing apparatus. EXPLOSIVES & CHEMICAL PRODUCTS Ltd. 18 Sept., 1968 [28 Sept., 1967], No. 44314/67. Heading B1C. [Also in Divisions B8, Cl and F2] A continuous process for the production of an explosive composition comprises feeding ammonium nitrate at 4 into inclined tube 1 enclosing rotating helix 12, introducing fuel oil at one or more inlets 7, and removing the mixture at 8. The helix is of smaller diameter than the tube 1, and is mounted eccentrically of the tube, so as to effect mixing of the ingredients. Further inlets to the tube 1 may be provided for aluminium, manganese dioxide, or calcium silicide. The mixed explosive passes via hopper 9 into sacks which may be weighed on scales 10. The lower bearing for the helix 12 comprises (Figure 3, not shown) a felt packing and oil seal to protect the bearing (see Division F2). In a modified form (Figure 4, not shown) there is an extension to the tube 1 at the end of which are two bearings, for withstanding lateral forces and longitudinal forces respectively. Fuel oil is pumped to inlet 7 from a tank (Figure 2, not shown) through a flow regulator and flow meter.
Patent GB-1427209-A (GB)
Title: Lattice matched heterojunction devices
IPC: H01L31/11
Filed: 1973-09-21
Abstract: 1427209 Epitaxial growth VARIAN ASSOCIATES 21 Sept 1973 [22 Sept 1972] 44415/ 73 Heading B1S [Also in Division H1] A lattice-matched (within 0.5%) semiconductor heterojunction device is formed by epitaxial deposition, preferably from the liquid phase, or a quaternary InGaAsP alloy on an InP substrate. In Fig. 1 point 108 represents the composition of an InGaAsP alloy latticematched to InP. Conditions such as solution composition, temperature, cooling rate etc, for sliding boat liquid phase epitaxial deposition of such lattice-matched heterojunctions are disclosed. Fig. 7 shows a double heterojunction laser comprising successive lattice-matched layers of Sn, Ta or Sa doped n type InP 127, p type In GaAsP 128 and p type InP 131 on an n type Te doped InP substrate 126. Fig. 6 shows a photocathode 111 for an infrared image intensifier tube 112. The photocathode 111 comprises an n type InP substrate 113 provided with an anti-reflective coating 114 and having epitaxially deposited thereon from this liquid phase a lattice-matched layer 115 of InGaAsP. A low work-function casein oxide layer 116 is provided on the layer 115.
Patent GB-948397-A (GB)
Title: Improvements in or relating to tool and cutter grinding machines
Inventor: ADAMS HERBERT ALFRED
IPC: B24B3/04
Filed: 1961-12-13
Abstract: 948,397. Cutter grinding machines. PRESSED STEEL CO. Ltd. Dec. 12, 1962 [Dec. 13, 1961], No. 44570/61. Heading B3D. A tool or cutter grinder has a spiral pitchgenerating arrangement in which, in response to longitudinal movement of the work-table, a sine bar 11 moves a rack 18 and thereby transmits the movement through at least a pair of gear wheels to rotate the work-head 25, the pair of gear wheels being mounted for interchangeability with at least one other pair of different ratio. In the embodiment of Fig. 1, an integral pair of gears 22, 23 is carried by a bracket 21 to mesh with a rack-engaging gear 12 and a work-head gear 24. The latter is secured to an indexing plate 29 carrying a peg 30 to engage with holes suitably spaced on a ring 31 mounted on a removable setting collar 35, the ring being changeable according to the number of flutes of the tool. A circlip 27 holds the interchangeable pairs of integral gears on a spindle carried by the bracket 21 which is adjustable towards and away from the workhead, the spindle being vertically adjustable in the bracket to enable gears of different ratio to be meshed with the wheels 19 and 24.
Patent GB-1327283-A (GB)
Title: Data handling employing time modulation
IPC: G08C15/12
Filed: 1970-09-22
Abstract: 1327283 Multiplex pulse signalling ADEC CORP 22 Sept 1970 [29 Sept 1969] 45117/70 Heading H4L [Also in Division G4] Signals from tranducers 10 to 10n, Fig. 1, are supplied to time modulators 12 to 12n in which the period of a multivibrator output is varied in accordance with the input signal, Fig. 2 (not shown). The outputs of the modulators are combined in time division multiplex on lead 18 via switches 14 to 14n under the control of sequential addressers 16 to 16n operated by address and reset pulses from control 20 over lines 22 and 24 respectively. Initially all the switches are opened by the reset pulse and an address pulse is supplied to cause addresser 16 to close the switch 14. A counter in address control 20, Fig. 6 (not shown) then counts a predetermined number, e.g. ten, of the data pulse signals passing through switch 14 after which a second address pulse is sent out to open switch 14 and close switch 14a. This second address pulse, which is fed to all the sequential addressers, causes addresser 16 to send a signal to the addresser 16a which in combination with the address pulse causes switch 14a to close and the address control 20 now counts ten of the data pulse signals on the second channel. This sequence is repeated until all the switches have been operated and a fresh cycle begins. The address pulses thus are generated at intervals dependent upon the durations of the data pulse signals on the respective channels. The address control 20 co-operates with a digital translator 21, Fig. 6 (not shown) which includes a crystal oscillator producing clock pulses which are gated for the periods of operation of switches 14...14n respectively, to provide corresponding pulse counts which are supplied to display units. The frequency of the clock pulses may be varied to provide different levels of resolution. If the data is to be transmitted to a remote station a remote address control 200 and a digital translator 206 are provided, the digital translator 21 being dispensed with. Operation of the start button at the remote control 200 will cause address control 20 to operate as described. An alternative pulse period modulator, Fig. 8, comprises a capaciter 208 linearly charged via a circuit 212 from a source 210 until a unijunction transistor 214 is triggered. Voltage V IN  is controlled by the analogue voltage which thus controls the charging time of the capacitor and the output of the transistor controls a bi-stable flip-flop 219 providing a duration modulated square wave output with symmetrical half cycles.
Patent GB-1469102-A (GB)
Title: Signal processors for noise reduction systems
IPC: H04B1/62
Filed: 1974-03-11
Abstract: 1469102 Noise suppression systems DOLBY LABORATORIES Inc 11 March 1974 [23 March 1973] 45148/76 Divided out of 1469101 Heading H4R The description is identical to that of Specification 1,469,101, the claims relate to the decoder portion of the noise suppression system, which may be used to reduce the noise level of uncoded signals or, in conjunction with the processors of the parent Specification 1,469,101 to decode encoded signals.
Patent GB-1354713-A (GB)
Title: Multiple polyphase electric motor unit
IPC: H02K3/28
Filed: 1971-09-28
Abstract: 1354713 Winding lay-outs for dynamoelectric machines KLEIN SCHANZLIN & BECKER AG 28 Sept 1971 [30 Sept 1970] 45150/71 Heading H2A In a multiple, polyphase motor unit driving, for example, a submersible pump wherein the motors are arranged in tandem and limited space is available for the supply conductors in the pipe containing the motors, a conductor is omitted from at least one slot per phase in the stator of at least one of the motors and a separate conductor connected to all the stator windings is inserted therein. Fig. 1 shows a unit with two motors each having a two-pole polyphase stator winding, one phase only being shown and the winding groups a 1 , b 1  and a 2 , b 2  of each winding being connected in series. The end X 1  of the first winding, which would normally terminate in slot 13, is diverted to slot 2 and connected to the beginning U 2  of the second winding. The end X 2  of the second winding is connected to the separate conductor 30 which is taken through the space available in slot 13 of motor 1 to form a supply terminal X adjacent this motor. The two windings are thus connected in series. Alternatively, Fig. 2 (not shown), the groups a 1 , b 1  are diverted to leave a space in two slots (11, 13) of motor 1 and are each connected in series with the groups a 2 , b 2  respectively of motor 2 to form two parallel winding branches, the two return conductors (30a, 30b) of which are taken through the slots 11, 13 of motor 1.
Patent GB-960190-A (GB)
Title: Polypropylene stabilization
IPC: C08K5/49
Filed: 1962-11-29
Abstract: A light and heat stable composition comprises solid, isotactic, crystalline polypropylene and a mixture of (A) carbon black, (B) a compound of formula <FORM:0960190/C3/1> where n is 0-8, R and R1 is a C116 hydrocarbon radical, and (c) a compound of formula <FORM:0960190/C3/2> where R2, R3 and R4 is a C6-20 hydrocarbon radical. 0.01-5% each of (A), (B) and (C) may be used and the composition may contain up to 75% of the polymer in the amorphous state.  R may be a secondary or tertiary alkyl radical, R1 may be a normal alkyl radical, and R2, R3 and R4 may be an alkyl, aryl or cycloalkyl radical.  A number of the trithiophosphites and tris-phenols are listed.  The compositions may be formed into moulded sheets of fibres.  In examples trilauryl trithiophosphite and 2,6-bis-(2-hydroxy-3-t-butyl-5-methyl-benzyl)-4-methyl phenol were used as (C) and (B) respectively.  Specification 888,673 is referred to.
Patent GB-1381417-A (GB)
Title: Method of securing articles
IPC: C30B15/32
Filed: 1973-09-27
Abstract: 1381417 Seed crystal holder MULLARD Ltd 27 Sept 1973 45284/73 Headings B1G and B1S A seed crystal in which part is enclosed by a layer of 0.025 to 0.5 mm. thick metal foil is secured in a V-shaped longitudinally extending recess in a holder by clamping wires acting radially on the foil covered seed crystal. In the recess the angle between the limbs of the V is equal to the angle between two adjacent flat faces of the seed crystal, i.e. from 60 to 120‹. The metal of the foil is selected from annealed gold, nickel, aluminium, lead, tin or platinum. The seed holder has preferably grooves for the wire as has the enclosed seed crystal remote from the recess. As shown in the figures seed crystal 1 is secured in bolder 2, with part of the length of the crystal adjacent the holder enclosed by gold foil 3, by gold wires 4. As shown in Fig. 2, the recess is formed by limbs 6 and 7 and between these limbs a slot 8 is provided which avoids stress on the crystal at its vertex 9. The holder is used in growing single crystals by pulling from a melt. For Figure see next column
Patent GB-1017220-A (GB)
Title: Photochemical process for producing a decorative laminated material
Filed: 1962-11-30
Abstract: 1,017,220. Photographic materials and processes. V.ROGNONI, F.ALLEGRANZINI, F. ALLEGRANZINI, L.GRANZINI AND G. ANDREINI, [Trading as ROGNONI DI VERGILIO ROGNONI & C. SOCI IN NOME COLLETTIVO]. Nov. 30, 1962 [June 28, 1962], No. 45352/62. Addition to 989,542. Heading G2C. A process for producing coloured images comprises fastening a water-permeable base to a temporary support, sizing the base with a hotsoluble glue to render the base water-impermeable, coating the sized base with a mixture of a bichromate and a cold-soluble glue, exposing to a photographic negative, wasing with cold water to remove the unexposed areas of the light sensitive layer, colouring the bichromated glue layer after any of the steps subsequent to the application of the hot soluble glue to the substrate and its fastening to the support, washing with hot water to remove the exposed portions of hot-soluble glue layer, detaching the coloured image thus produced from the temporary support impregnating the base with a heat-hardenable resin and heating under pressure to produce a decorative laminate. Multicoloured images may be produced by using colour separation negatives and blue, red and green coloured materials and repeating the above process three times before impregnating the multicolour print with a heat-hardenable resin and heating to produce a decorative printed laminate. The negative used may be a half-tone negative, preferably one bearing a series of ruled parallel lines, so that in multi-colour production, the angle of the screen can be varied for each exposure. Before impregnation with the resin the resist may be hardened by washing with an aqueous formaldehyde solution. Alternatively, the permeable base may be initially impregnated with the resin.
Patent GB-1359911-A (GB)
Title: Apparatus for filling powder granular and liquid materials into  containers
IPC: B65B39/04
Filed: 1972-10-03
Abstract: 1359911 Filling containers VYZKUMNY USTAV STAVEBNICH HMOT 3 Oct 1972 45481/72 Heading B8C An apparatus for filling powder, granular and liquid materials into containers comprises an extensible feeding hopper 6 and an extensible outer jacket 7 forming mutually an evacuating annular space 5, a conic closure 15 at conical lower ends of the hopper and jacket fixed to a vertically movable lowering hose 8 anchored on lowering means 21 which is connected to a material height-sensing unit 24 and to a source of compressed air, the hose passing through the closure 15 and serving as a sensing indicator as well as through a bracket 12 connected to the conical end of the hopper, the bracket 12 being provided with a stop 11 for closing a sensing nozzle 26 connected to a lowering sensing unit 22 and to a source of compressed air, and suspension chains 3 connected between upper and lower ends of the hopper within the annular space to limit extension of the hopper and opening of the closure when the chains are fully extended. As shown, the material is fed to a container through a device comprising upper and lower concentrically arranged parts 1, 18 and 9, 10 interconnected by the outer jacket 4 and the hopper 6, and by the chains 3. The inner parts 18, 10 and hopper 6 define a passage for flow of the material from a supply source 16, and the annular space between the parts 18, 10 and jackets 4, 6 define an exhaust passage for surplus material. In use, the device is positioned above a filler aperture 27, the outer part 9 is lowered on the aperture by the lowering means 21 which then lowers the closure 15 into the container by means of the hose 8 connected thereto and closes the sensing nozzle 26 which transmits a signal to the sensing unit 23 to limit the descent of the closure 15, to initiate flow of material through the device into the container and to actuate an evacuating unit (not shown) connected through a port 19 to the exhaust passage. When the desired height of material in the container is reached, a sensing indicator 28 is connected through the hose 8 to the height sensing unit 24 which transmits a signal to the unit 23 which terminates flow of material, actuates the lowering means 21, returns the closure to its original position, raises the parts 9, 10 clear of the aperture 27 and stops the evacuating unit.
Patent GB-1440090-A (GB)
Title: Cage system for livestock
IPC: A01K31/00
Filed: 1973-09-28
Abstract: 1440090 Poultry cages INGENIEURBURO FUR GEFLUGELWIRTSCHAFT VEB 28 Sept 1973 [3 Oct 1972 (2)] 45600/73 Heading AIM A cage system comprises an elongate stationary stand 1 carrying, along its length, feeding troughs 10, dropping removal devices 5 and watering troughs 11, and having slidably removable mesh floors 2 which have attached a series of transverse partition walls 3. Each cage in the system is defined on two sides by partition walls 3, the other two sides by grids, attached to the stand 1, below by a floor 2 and above by a droppings collecting tray 4 of the cage above. The floor 2 comprises 2 layers of plastics tube welded to form a mesh, the upper tubes being more elastic than tne lower tubes. The slidably removable floors 2 can be pushed out on rollers 7 into transport stands, which are resigned to accept the integral floor 2 and partition walls 3, by inserting an engaging device 6 into the floor frame on which device droppings removal apparatus 5 can engage, thus enabling easy and quick transfer of the animals
Patent GB-1237292-A (GB)
Title: Oils stable to oxidation
Inventor: BOURDONCLE BERNARD
IPC: H01B3/22
Filed: 1969-02-13
Abstract: 1,237,292. Lubricant base oil composition. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 13 Feb., 1969 [14 Feb., 1968], No. 45632/70. Divided out of 1,237,291. Heading C5F. A lubricant base oil composition comprises by-weight: (a) 80-99À5% of an oil obtained by the oligomerization of C 7 -C 20  α-olefins the oil having a MW of 350-2500 and (b) 0À5 to 20% of a petroleum vacuum distillate, a deasphalted vacuum residue, an aromatic extract of either of these, other conventional base oils or a mixture thereof. The composition may also include a hydrorefined oil. Examples describe compositions comprising an oligomerization oil of C 11 -C 14  α-olefins with (I) a bright stock and (II) with an aromatic extract of a vacuum distillate and a hydrorefined oil.
Patent GB-1424915-A (GB)
Title: Marking tools
IPC: B25D5/00
Filed: 1973-09-29
Abstract: 1424915 Marking tools M CULLOTY 9 Sept 1974 [29 Sept 1973] 45634/73 Heading B4X [Also in Division F2] A marking tool for marking on one workpiece when positioned in predetermined relation to a second the position of a bore in the second, comprises a shank 1 insertable in the bore, a head in the form of a disc or flange 2 for limiting penetration of the shank into the bore and spike means such as central spike 3 protruding so as to make a mark on the said one workpiece. The tool is particularly intended for marking the position of a dowel hole in making a dowelled joint.
Patent GB-1108008-A (GB)
Title: Improvements in and relating to priming
Inventor: DOW JAMES
IPC: C08F2/52
Filed: 1965-10-30
Abstract: A primer coating is formed on a polyvinyl chloride sheet by subjecting the sheet to a glow discharge at a pressure of up to 5 mm. of Hg in an atmosphere of at least one ethylenically unsaturated organic compound containing a polar group e.g. perfluorobutene, perchloroethylene and/or acrylonitrile.  The glow discharge may be carried out in two or more steps successively, each step using a different atmosphere.ALSO:A primer coating is formed on a polyvinyl chloride sheet by subjecting the sheet to a glow discharge at a pressure of up to 5 mm. of Hg in an atmosphere of at least one ethylenically unsaturated organic compound containing a polar group, e.g. prefluorobutene, perchloroethylene and/or acrylonitrile.  The glow discharge may be carried out in two or more steps successively, each step using a different atmosphere.
Patent GB-1279496-A (GB)
Title: Disconnecting contact assembly
IPC: H02B11/00
Filed: 1969-09-18
Abstract: 1279496 Switchgear structures WESTING- HOUSE ELECTRIC CORP 18 Sept 1969 [24 Oct 1968] 46087/69 Heading H1N A withdrawal circuit breaker 26 (not shown) carries a plurality of isolating contacts 52 rockably mounted in and biased out of respective bores 66 in an insulating block 60. Two sets of contacts 52 face one another and co-operate with a probe 30 carrying a plurality of fixed contact strips 32, 34, 36. The strips are attached by bolts 44, 46 to a pair of moulded insulators 42. Three types of contacts can be fitted to the insulators 42, a short contact 34 engaging the contact 52 only in a partially withdrawn test position of the circuit breaker, a longer contact 36 engageable in the fully inserted position and a long contact 32 engageable in both positions. Several forms of contact 52 are described. As shown in Fig. 2 the contact is a rigid member pivoted on a portion 64 of the block 60 and connection is made to it by a crimped joint. In alternative forms (Figs. 6, 9, not shown) the contact is pivoted on a conducting strip laid inside portion 64 and connection is made to the strip by a screw or plug on connector. The contact 52 is urged out of the bore 66 by a spring 54. In a further form (Fig. 11, not shown) the contact is a blade spring having one end gripped by the portion 64 of the block 60 and the other end resiliently urged out of the bore. In each case projections on the contact 52 engage stop surfaces 65 on the block to prevent it coming completely out of the bore.