baber/WOPTO huggingface dataset:
Patent GB-2475738-A (GB)
Title: Light guide with heat sink
Inventor: GOURLAY JAMES
IPC: G02B6/00
Filed: 2009-11-30
Abstract: This invention relates to light guide devices and methods of manufacture. The light guide device is suitable for use in a range of applications, particularly in connection with the backlighting of displays, for example, liquid crystal displays. A light guide device comprises a substrate 2 upon a first surface of which are mounted LED light sources 3. Light guide 4 is mounted on the substrate 2 such that it encapsulates the light sources 3. Scattering, reflective or refractive light extraction features 6a are provided to direct the emitted light out of the device through a light output surface 7a. A heat sink 8 is attached via thermal bonding material 9 to a second surface of the substrate 2. A second light guide 15 and second extraction features 16 may be provided over light guide 4. The substrate 2 may comprise microstructures.
Patent GB-333157-A (GB)
Title: Cooling or heating apparatus particularly applicable to viscous fluids
IPC: F28F19/00
Filed: 1929-03-28
Abstract: 333,157. Seligman, R. March 28, 1929. Heating liquids.-In an inclined rotary cylinder 1 for heating jams or other viscous liquids by an external spray of heating liquid, scrapers 14 for controlling the height of the material in the cylinder extend for part of tha length of the cylinder. The cylinder is peripherally mounted in members one or both of which is or are pivoted to the framework. A series of buckets &c. 15 are arranged adjacent the delivery end of the cylinder to raise the fluid and drop it on to a delivery shoot. External scrapers 9 deflect the heating liquid.
Patent GB-1056137-A (GB)
Title: A claw for a tyre remover and a tyre remover provided with such a claw
IPC: B60C25/132
Filed: 1964-03-10
Abstract: 1,056,137. Tyre-demounting apparatus. V. DUQUESNE. March 10, 1964 [March 18, 1963], No. 10045/64. Heading B7C. A tyre b is removed from a wheel rim a by axial advance of a spider 11, whose arms bear radially adjustable claws 12 with pivotable spatulas 15, spatulas 15 swinging radially inwards, as spider 11 descends, to limits set by shoulders 19, 20, abutting to engage and displace the tyre beads but not touch or score the bead seating parts of the wheel rim. Spider 11 is moved by an hydraulic jack 3, 4, to whose piston-rod 5 threaded shaft 10 is screwed. Spider 11 screws on shaft 10 by its hub 11<SP>1</SP> and is locked in place by locking nut 11<SP>11</SP>. Screws 14 on claws 12 engage notches (18) in spider arms for adjusting the claws for different tyre diameters (Figs. 2, 3, 5, not shown). Spider 11 preferably has eight arms of inverted T-section. Shaft 10 may be suspended on a counterweighted cable, for convenience when unscrewed from rod 5, and jack 3, 4 is located in a well below base plate 2.
Patent GB-590852-A (GB)
Title: Improvements in and relating to the treatment of phosphate-coated metal surfaces
IPC: C23C22/80
Filed: 1945-04-23
Abstract: Improved resistance to corrosion of a phosphate-coated ferrous metal or alloy surface is obtained by immersion in an aqueous solution containing 2-25 per cent. of a stannous salt-preferably stannous chloride.  Colouration and further enhanced resistance to corrosion of the surface is obtained by including a compatible dye in the stannous salt solution.  The treating solution may be anywhere between room temperature and boiling point, while an inhibitor or stabilizer such as mannitol, gum arabic, a carbohydrate, gelatine &c. may be added.  The amount of dye present may vary from 0.1 to 10 per cent. depending on the weight of stannous salt in the treating solution; with a minimum of 0.4 per cent. in weight of stannous salt. Suitable stannous salts are the halides, sulphate, fluoborate, acetate, oxalate, tartrate. Specification 2813/09, [Class 55 (ii)], U.S.A. Specifications 1,651,694 and 1,911,726 are referred to.
Patent GB-1246876-A (GB)
Title: Reed relay
Inventor: MORI TETSUO
IPC: H01H51/28
Filed: 1969-02-26
Abstract: 1,246,876. Electromagnetic reed relays. MATSUSHITA DENKO K.K. 26 Feb., 1969 [27 Feb., 1968; 12 April, 1968; 30 May, 1968], No. 10199/69. Heading H1N. A reed relay has a coil former comprising two synthetic resin moulded members A, B each having a main body part 1 and flanges 4, 4<SP>1</SP> at the ends thereof and having terminal members 6, 7, 9, 10, 21, 22 embedded therein with the fixed end of the reed armature contact 27 secured to a plate 5 from which the member 6 extends. The reed 27 is accommodated in a passage formed by recesses 2, (17) in the moulded members and its free end co-operates with opposed fixed contacts 8, 20 embedded in respective members A, B and having terminal members 9, 21 extending therefrom. The moulded members A, B for a plurality of relays may be formed around strips 34, 35, 36, 37 (Fig. 4A) which are subsequently cut to form the respective members 9, 10, 6, 7, as shown in Fig. 4B. Projections 13 on the member 18 set the gap between the fixed contacts 8, 20 and walls (12), (24) separate the contact area from recesses in which a permanent magnet 28 may be mounted with one pole adjacent a magnetic contact member 20, and the other pole spaced from the other magnetic contact member. The members are shaped to permit cutting away of unnecessary parts of the terminal members during manufacture. The reed may be adjusted after manufacture by altering the shape of the plate 5 which extends through an opening 5a in the former A, B.
Patent GB-1491583-A (GB)
Title: Flat knitting machine
IPC: D04B15/00
Filed: 1975-03-12
Abstract: 1491583 Knitting-machines EDOUARD DUBIED & CIE (SA) 12 March 1975 [27 March 1974] 10285/75 Heading D1C The subject-matter of this Specification is substantially the same as that described in Specifications 1491581 and 1491582, but the claims are concerned with the construction of the means for resetting the stitch pressers to their new position after each stroke of the carriage.
Patent GB-434613-A (GB)
Title: Improvements in and relating to alternating current electricity meters
IPC: G01R11/00
Filed: 1934-04-05
Abstract: 434,613. Supply meters. FERRANTI, Ltd., FERRANTI, D. Z. DE, and BATT, F. H., Hollinwood, Lancashire. April 5, 1934, No. 10316. [Class 37] In a meter of the induction type in which the leakage flux is used to obtain quadrature between the voltage and current fluxes, the leakage flux is also used for braking purposes, the permanent magnet usually employed for this purpose being dispensed with. In the construction shown, the core comprises two E-shaped members a with their centre limbs extending beyond the side limbs and abutting, and with two L-shaped arms b extending from the backs of each E. The core is mounted on pillars c attached to a base plate d. The voltage coil e surrounds the central limb of the core, and current coils f are mounted on the arms b, the coils f being connected together in series or parallel as desired. The return paths for the magnetic circuit are formed by a claw-shaped member of magnetic material which is attached to the base plate and provided with poles h, j j lying on the surface of a cylinder, the axis of which passes through the centre of the core. Braking poles m are attached to the core adjacent the poles j, the poles m and arms b lying on the surface of an inner cylinder. The rotor k comprises a cylindrical shell of aluminium or other conducting material and is mounted on a spindle n so as to be rotatable in the gap between the cylinders previously mentioned. If desired, the rotor may be formed partly of insulating material, as described in Specification 370,067, in 'order to decrease the interaction between driving and braking fluxes and to reduce losses from eddy currents. The relative reluctance of the driving and braking flux paths may be so varied as to cause the driving flux to increase more rapidly than in direct proportion to the applied voltage, in order to compensate for the increase in braking flux with increasing voltage. This may be effected by causing the braking flux path to become saturated with rising voltage, by making the braking poles of large area, or iron armatures controlled by springs o, and automatically movable in accordance with variations in supply voltage, may be provided.
Patent GB-579603-A (GB)
Title: Improvements in and relating to electric drum controllers
IPC: H01H43/06
Filed: 1944-06-01
Abstract: 579,603. Snap-action switches; interrupters. BRITISH THOMSON-HOUSTON CO., Ltd., and CLARK, F. J. June 1, 1944, No. 10558. [Class 38 (v)] A drum controller consists of strikers 14, 14<1> adjustably mounted on the metal or insulating discs 12 which form the drum, by means of screws and square nuts 15 situated in the slots 13. The discs 12 are mounted on shaft 11 and are rotated by gear wheel 18 or by a handwheel. When the strikers 14 engage rollers 16 on rocker arm 4, which is pivoted at 5, the arm is forced downwards until the spring 8, attached to the bracket 7 and to the rear end of the arm 4, moves over its deadcentre position, the resiliently mounted contact 3 then bridging fixed contacts 2 with a snap action. Upon further rotation of the drum, striker 14<1> engages rollers 17 and moves the rear end of rocker arm 4 downwards to open the contacts with a snap action.
Patent GB-105588-A (GB)
IPC: B64B1/00
Abstract: 105,588. Kapferer, H., and Soc. Anon. Astra. April 12, 1916. Aerostats.-In dirigible balloons having a number of cells separated by transverse diaphragms, each diaphragm comprises an upper impermeable part a and a lower permeable part f, the upper part being continued downwards and sub-divided into two flexible partitions b connected to adjacent parts of contiguous partitions, as shown, to form an inner partition c. This partition c is adapted to contact either with the lower or upper wall of the envelope according as the gas cell is filled or empty and is connected at the sides to the envelope at opposite ends of a diameter d. The part f is formed by netting or light fabric and assists in tensioning the whole of the diaphragm a. Each cell, having a valve s', can be independently inflated or deflated. In the construction shown in Fig. 10, the end compartment B' is separated from the compartment B<5> by an impermeable diaphragm f whereby, should the cell A<6> be pierced, the gas from the cell A<5> can be forced into the chamber B<6> through the tube g. This arrangement provides for the supporting of the rear planes even when the balloon is pierced.
Patent GB-1075917-A (GB)
Title: Live roller conveyors
IPC: B65G13/00
Filed: 1966-03-10
Abstract: 1,075,917. Roller conveyers, RAPIDS-STANDARD CO. Inc. March 10, 1966 [May 24, 1965], No. 10574/66. Heading B8A. A friction drive belt 28 for conveyer rollers 18 has an undulated configuration (38, 38<SP>1</SP>, Fig. 5, not shown) interfitting with a chain drive having roller elements 36. The belt 28 is of channel section (Fig. 4, not shown) and straddies the chain, the combination being guided by a track bar 62 and a channel-shaped support 60 which are vertically adjustable. The chain is driven by a single electric motor 46<SP>1</SP>, but additional motor drives may be engaged with the chain along its length. In Fig. 6, (not shown), the belt (28) is allowed to drop away slightly to obtain full engagement between the chain and a powered sprocket (71).
Patent GB-181687-A (GB)
Title: Improvements in supporting strips for conical liner plates in the bowls of centrifugal separators
IPC: B04B1/08
Filed: 1922-04-13
Abstract: 181,687. Aktiebolaget Separator. June 17, 1921, [Convention date]. Density separators.- A centrifugal separator with conical liner plates B is provided with supporting strips C at the wall of the bowl A and the strips have grooves D which allow the mud deposit to be equalized between the various sections of the annular space between the liner plates and the wall.
Patent GB-102132-A (GB)
Title: Improvements in or relating to Type Bars or Slugs.
Inventor: WALKER ARTHUR HENRY
IPC: B41B1/28
Filed: 1916-07-28
Abstract: 102,132. Walker, A. H., (Mergenthaler Linotype Co.). July 28, 1916. Type - bais.- Relates to the securing of cut or plate blocks C in a form A composed of slugs or type-bars B, and comprises slugs having flat surfaces B<2> for supporting the plate C and each having one or two upstanding projections B<3> with preferably overhanging edges to engage the bevelled edges of the plate C. Irregularly-shaped plates C are supported on slugs having their overhanging projections B<3> spaced accordingly. The slugs may be divided vertically and centrally under the plate C. Some of the slugs B may also have printing-characters B<1> thereon, according to the class of work being executed.
Patent GB-183207-A (GB)
Title: An improved method of, and apparatus for, reproducing the sounds obtained by the playing of musical instruments or by the operation of gramophones or the like
Filed: 1921-04-13
Abstract: 183,207. Harris, A. W. April 13, 1921. Violins, &c. - Relates to the reproduction of sounds by means of an electric transmission system comprising two friction members through which a varying electric current flows producing a corresponding variation in the friction between the members while they are moved relatively to each other as described in Specification 144,761, [Class 40 (iv), Telephones &c.]. According to the invention, (1) musical sounds emanating from a musical instrument or from a gramophone: record thereof are reproduced on a violin or piano-like musical instrument associated with the friction members, and (2) the same kind of instrument is used for the source and the reproduction of the sounds. As shown in Fig. 3 the original sounds are made to affect a microphone 8 in circuit with a battery 10, an adjustable resistance 12, and one coil of a transformer 11; and the other coil of the transformer is in circuit with a battery 27, an adjustable regulator 13, and the friction members which are connected up to the leads 22, 24. The microphone 8 may replace the horn of a gramophone, as shown in Fig. 1; and the rest of the electric apparatus, except the friction members, may be put in a box 9<a>. When a violin reproducer is used, one friction member 2 replaces the strings and is made of gold or tin foil 3 backed with canvas 4 for strength and coated with gelatine 5, against which a bow 6 having a surface 7 of metal instead of horse hair is drawn. When a pianolike instrument is used as reproducer, the friction members are made to rotate relatively to each other and one member is mounted on the soundboard of the piano.
Patent GB-793842-A (GB)
Title: Connector for scaffolding
IPC: E04G7/02
Filed: 1956-04-09
Abstract: 793,842. Scaffoldrng; shuttering; shores. HOLMBOE, L. S. April 9, 1956, No. 10764/56. Class 20(2) A connection for scaffold members comprises a square rod frame 14 having on two opposite sides vertical rods 12. 13 adapted to locate a horizontal scaffold member 4, the lower ends of these rods and downwardly bent loops 20, 25 in the other two opposite sides locating the upper end of a vertical scaffold member 30 which may be guided into the socket thus formed by first having its end engaged with the lower ends of the rod 12 and the loop 20 which are shorter than the other rod and loop, and then moving the end laterally to engage the other rod and loop when the end slips into the socket and engages the other scaffold member 4. Nails may be driven through holes 31, into the member 4. In a modification the loops and rods are of equal length but are flared out to facilitate engagement of the scaffold member 30
Patent GB-580284-A (GB)
Title: Improvements relating to sliding roofs for vehicles
IPC: B60J7/053
Filed: 1944-06-05
Abstract: 580,284. Fastenings. MOBBS, H., and SMITH, G. H. June 5, 1944, No. 10796. [Class 44] [Also in Group XXXII] The fastening for locking a horizontally sliding panel 21 in the roof of an automobile in any position is controlled by the handle 60 provided for moving the panel. Rotation of this handle causes rotation of a disc 61 and thus extension of the rods 63 through the guides 62 to engage the rounded blocks 64 secured to channel members 22 so locking the panel 21 down. The disc 61 is held in locking position by a spring 67 co-operating with steps in the disc.
Patent GB-165073-A (GB)
Title: Improvements in letter files
IPC: B42F13/00
Filed: 1921-04-14
Abstract: 165,073. Fles, L., (Assignee of Pagina Fachhaus f³r Maschinen und Burobedarf Verlag und Versandbuchhandlung F. W. Starke). June 16, 1920, [Convention date]. Post files; attaching files to covers. - The invention consists in a combination of known elements; a known type of post files in which the filing-members e, f are supported upon plates mounted on a pin i sliclably in, slots in upstanding members on a base plate k, is combined with a known form of bed-plate fixed to the cover and having in-turned flanges d forming guides to removably hold the filing-mechanism. Specifications 727/96 and 18297/03 are referred to.
Patent GB-843722-A (GB)
Title: Electric comparator network
IPC: G06F7/02
Filed: 1958-04-08
Abstract: 843,722. Comparing digital data. WESTERN ELECTRIC CO. Inc. April 8, 1958 [April 10, 1957], No. 11041/58. Class 106 (1). [Also in Group XXXVIII] An electrical network for comparing two binary numbers comprises a plurality of comparison circuits each receiving binary digit signals of like significance and corresponding output circuits so arranged to indicate which of the compared numbers is the larger and to provide a distinctly weighted output signal indicating the magnitude of the difference between them. The comparator network shown comprises stages A, B ... N to which are applied the digits a 1 , a 2  ... a n  and b 1 , b 2  ... b n  of the two binary numbers to be compared. " Exclusive OR " circuits such as 100, Fig. 2A, convert the number b 1 , b 2  ... b n  into reflected binary form g 1 , g 2  . . . g n  before comparison. The comparator stages, Fig. 2B, are identical except that the end stages A and N are simplified. Each intermediate stage such as B comprises: a comparison portion including an " exclusive OR " circuit 220, AND circuits 225, 230 and inverters 224, 232; a carry portion, including OR circuits 240, 235, which receives a " carry " signal c 1  or d 1  from the next higher stage A and supplies carry signal c 2  or d 2  to the next lower stage; and an output portion including AND circuits 255, 260 which are responsive to the carry signals and also to signals from the next lower stage. The output signals from circuits 255, 260 are applied to resistors R 2  connected via inhibit circuits 296 to positive and negative lines 290, 291 respectively. The resistors such as R 2  have values weighted according to the corresponding binary powers, thus forming a digital-to-analogue converter 295; and only the output signal having the largest weighting is permitted to reach the output leads, such signal inhibiting circuits 296 for the lower stages. The comparator network operates according to rules such that, an output is obtained from the most significant stage in which the compared digits mismatch, unless the digits in one or more succeeding positions mismatch in the opposite direction when an output is obtained from the stage corresponding to the last of the oppositely mismatched digit pairs but with the polarity of the highest mismatched pair. Thus e.g. if the two numbers are 6 = 0110 and 9 = 1001 applied to stages A, B, N-1, N, there would be no output in response to the negative mismatch in stage A but an output, representing " - 2 " would be obtained from stage N-1. In a modification (Fig. 3, not shown), an output is obtained on one lead to indicate relative magnitude (i.e. which number is greater) and an output on a second lead (which normally carries a signal representing " 1 ") indicating the approximate magnitude of the difference. The comparator may be employed for address selection in a C.R.T. storage system as described in Specification 836,235. Specifications 663,872, 836,234 and 843,723 also are referred to.
Patent GB-1090563-A (GB)
Title: Crystalline synthetic zeolites
IPC: B01J29/12
Filed: 1965-03-16
Abstract: Crystalline aluminosilicate zeolite having a fanjasite structure of Si, Al, O, alkali metal and H+ and/or NH4+ ions (see Division C1) may be modified for use as a hydrocracking catalyst for feedstocks such as cycle oil by impregnating with Pd, Pt, Rh, Mb, Cr, V, Co, Ni, Cu, Ag or Mn in amount 0.01 to 5.0 weight per cent based on the dry zeolite.ALSO:Crystalline aluminosilicate zeolites having a fanjasite structure of Si, Al, O, alkali metal and hydrogen-containing ions (i.e. H+ of NH4+) are characterized by cage and bridge cation positions which are predominately occupied by the hydrogen-containing ions and alkali metal ions respectively wherein the electron density at the bridge position is 1.0 to 2.0 electrons per cubic Angstrom and the electron density at the cage position is less than 75% of the value corresponding to complete occupancy of the cage position by alkali metal ions.  A synthetic fanjasite of the formula 0.9\sB0.2 M2O : Al2O3 : xSiO2 when in the anhydrous form where M = alkali metal and x is >2.5 may be contacted with a solution of (NH4)2CO3 or NH4NO3 selectively to replace the cage M+ by NH4+ leaving M+ at the bridge positions.  Alternatively, all the M+ may be replaced by treatment with other reagents, e.g. NH4Cl and the bridge M+ reintroduced by reaction with aqueous alkali metal hydroxide.  Ammonium cations may be decomposed to hydrogen ions by calcination at about 1000 DEG  F.
Patent GB-277576-A (GB)
Title: Improvements relating to window shades
IPC: E06B9/64
Filed: 1927-04-26
Abstract: 277,576. Snyder, S. E. April 26, 1927. Roller-blinds, spring.-Relates to spring roller window shades of the type described in Specification 265,061, in which the shade member and roller to which it is attached can be raised or lowered separately or simultaneously. The spring rollers 8 carrying the shade 7 is suspended from a spring roller 17 by means of cords 16 which pass round conical sections 24 on the ends of the roller 17 and are attached to eyes 19 on a bar 10 carrying the roller 8. The trunnions 13, 14 of the roller 8 are carried in depending ears 11, 12 at the ends of the bar 10, and the trunnions 22, 23 of the roller 17 are carried in the ears 21 of brackets 20. Spiral grooves 25 are provided on the cones 24 for the cords 16, and flanges 26 on the cones prevent overwinding of the cords. Cords 27, 28 secured to the bar 10 and stick 30 of the shade respectively enable the position of the shade relatively to the window opening, 5 and the length of the shade to be adjusted. When the shade is at the top of the opening 5 and the spring of the roller 17 is unwound, the cords 16 engage the cones 24 at their smaller diameter, and when the shade is at the bottom of the opening 5 and the spring of the roller 17 is wound up, the cords 16 engage the cones 24 at their larger diameter, so that the leverage is equalized in proportion to the variation of the tension of the roller 17.