baber/WOPTO huggingface dataset:
Patent GB-702756-A (GB)
Title: Improvements in or relating to optical projection screens
IPC: G03B21/60
Filed: 1951-01-23
Abstract: 702,756. Projection screens. STABLEFORD, J. L. Jan. 21, 1952 [Jan. 23, J951], No. 1779/51. Class 97(1) A screen surface is prepared by spraying a base with a plurality, e.g. seven to nine, coats of a concentrated suspension of aluminium flakes in a transparent adhesive liquid medium, each coat being sprayed with a pressure, and from a distance, so chosen in relation to the drying and/or setting rate of the medium that the flakes in at least the outer layers are distributed at random with normals inclined at up to 25 degrees to the screen plane. To increase the diffusion the screen base may be initially ribbed horizontally and vertically, or both, or may have concentric circular ribs. The screen may be curved cylindrically or spherically to a radius approximately equal to the throw. Specification 534.483 is referred to.
Patent GB-353397-A (GB)
Title: Process for the manufacture of alkali lyes from alkali sulphates
IPC: C01D1/20
Filed: 1930-01-18
Abstract: Caustic alkali is made by treating alkali sulphate with solid strontium oxide or hydroxide.  The latter may be added in excess to a concentrated solution of the sulphate, or solid alkali sulphate, such as Glauber's salt may be introduced into a suspension of strontium hydroxide.  The heat of slaking aids the decomposition, and the excess strontia separates on cooling.  The strontium sulphate may be reconverted into oxide by the intermediate formation of sulphide or hydrosulphide, or by boiling with sodium carbonate in known manner, or by treating with ammonium carbonate, or ammonia and carbon dioxide and calcining the strontium carbonate formed, for instance in a rotary furnace at 1200 DEG  C.  The carbon dioxide evolved, and the ammonia recovered from the ammonium sulphate lyes are used again.
Patent GB-645155-A (GB)
Title: Improvements in or relating to frequency shift telegraph, facsimile and other signalreceivers
IPC: H04L27/14
Filed: 1948-01-21
Abstract: 645,155. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 21, 1948, No. 1880. Convention date, May 16, 1946. [Class 40 (v)] In a receiver for frequency-shift telegraphic and like signals, currents derived from the received waves are applied to a limiter-amplifier stage, the output of which controls a locked-in oscillator feeding discriminator and detector circuits. The detected pulse output may be fed through reciprocally-coupled valve pairs to a tele-typewriter or other recorder; and means may be provided whereby when signalling is terminated the reciprocally-coupled valves always assume the " mark " condition. As shown, IF signals derived from the incoming waves are fed from the last IF amplifier V1 through a short time-constant circuit C15, R14 to the grid of a limiter valve V2, the screen of which is operated at a voltage lower than normal. The output, limited in both positive and negative swings, is fed by switch-controlled resistors R21, R22 and coupling C20, R24<SP>1</SP> to the control grid of the oscillator valve V3 tuned to the mean frequency of the control wave. Oscillations generated in the tuned circuit L19, C26 by virtue of the back-coupling L15 to the screen grid, are locked in frequency by the voltage on the control grid, the locking range being adjustable by the switching arrangement S. Oscillations from the anode of the valve V3 are passed to a phasing discriminator T4 and detector V4 4 to give a pulse output at the terminals T. The pulse output is taken through a reversing switch RS to an amplifier 40, and if desired through a low-pass filter LF to a first pair of reciprocally-coupled relay valves V6, V7 and thence to a second output pair of reciprocally-coupled valves V10, V11. The currents through this last pair of valves pass alternately in opposite directions through a recording relay connected to terminals a, e, via a low-pass filter F, a meter M1 and a resistor R66. During spaces a negative voltage is supplied from the output valve V10 to the suppressor grid of a pentode amplifier V13, the control grid of which is fed from a tonefrequency source 74. In this way, tone frequency is fed from the pentode anodes to an outgoing line during marks, but is cut off during spaces. In order to ensure that the valve pairs V6, V7; V10, V11 are in the mark condition in the absence of received signals, the anode of the valve V7 is connected to the anode of a valve V9, the control grid of which receives negative bias from the grid circuit of the limiter valve V2, thus blocking the valve V9 during normal reception. Should the incoming signals fail, the valve V9 is rendered conductive and as it draws current through the anode resistor R74 of the valve V7, the anode voltage of that valve falls and with it the screen voltage of the valve V6. This latter valve is thus blocked and the valve V7 opened, which is the condition corresponding to a mark. Operation of the relay valves V6, V7, V10, V11 by noise impulses is thus prevented in the absence of signals.
Patent GB-122892-A (GB)
Title: Improvements in or relating to Box-fasteners.
Inventor: CHAMBERLIN FREDERICK GEORGE
IPC: E05C19/14
Filed: 1918-02-05
Abstract: 122,892. Chamberlin, F. G. Feb. 5, 1918. Hasp fastenings and locks. -A box-fastener, comprising a lever hinged to one side of the box and a link pivoted to it in such a manner that it can be engaged with a catch on the lid, is secured to the box by screws &c. accessible only when the box is unlocked. The lever C<5> to which the catch link D is pivoted is arranged to cover the attaching-bolts C<2> when in the closed position shown, and it may be held in this position by a spring- pressed bolt E adapted to be released by a key. The sides of the link D prevent removal of the lever hinge-pin C<4> when the box is locked. The catch B<3> may form part of one of the hinge plates as shown.
Patent GB-112687-A (GB)
Title: Improvements in and relating to Boiler Furnaces and the like.
Inventor: HOLEHOUSE WILLIAM HENRY
IPC: F23H3/02
Filed: 1917-02-12
Abstract: 112,687. Holehouse, W. H., and Holehouse, W. Feb. 12. 1917. Grates.-In a sectional grate, such as described in Specification 28643/10, with transverse bars such as described in Specification 1689/12, the bars are mounted between dead plates D, D<1> connected by bolts. Each section of the grate is carried by moving carriers C actuated by cranks, and each section, or the whole grate, is combined with a push-plate P actuated so as to move oppositely to the corresponding section of the grate. In the furnace described, the fire bars F are mounted transversely on four reciprocating carriers C, the bottoms of which are perforated and work in conjunction with a stationary perforated plate C<2> to discharge ashes. The pusher-plates are actuated by levers P<2>, P<4>, each from its corresponding carrier. The carriers may be in the form of troughs to which air is supplied at the rear, or they, may be combined with stationary troughs.
Patent GB-725809-A (GB)
Title: Improvements in or relating to partitioned boxes made of cardboard and other similarmaterials
Inventor: HIGHAM WALTER ERNEST
IPC: B65D5/49
Filed: 1953-01-23
Abstract: 725,809. Boxes. DRING, Ltd., J. Jan. 6, 1954 [Jan. 23, 1953], No. 2090/53. Class 18. The partitions 13, 14 of a box for chicks etc. are secured in position by tongue-and-slot connections consisting of angled slits 23 and tongues 16, 17 having lugs 18. The lugs 18 are bent to pass the tongue through the slit and then return into the plane of the partition to lock it in' the box. Similar connections (not shown) may secure a lid in place. Tongues engaging the base of the box may be reinforced by portions 28 to form feet. Each compartment may have a separate lid. It may have inserts as described in Specification 647,731.
Patent GB-332522-A (GB)
Title: Improvements in or relating to the conforming of shoe uppers to lasts
IPC: A43D23/06
Filed: 1929-01-22
Abstract: 332,522. British United Shoe Machinery Co., Ltd., and Bates, A. Jan. 22, 1929. Lasting and pulling-over. - In conforming an upper to the forepart of a last, a yielding pad is caused to press against a substantial proportion of the total area of the upper which lies between the toe portion and the waist of the shoe, to prevent the upper being drawn away from the hollow portion of the last forepart rearward of the toe. As applied to the toe moulding machine described in Specification 328,193, for dealing with a loose upper for a welted shoe, the toe rest carrier 1 is fitted with a casing 3 lined with an inflatable pad 5. The casing is supported at its forward end on a pin 13 in a lug loosely mounted on a pin 17, this arrangement providing a universal joint, and at its rear end by an adjustable ball-ended member 19. Springs 21 centralize the casing when no last is present. The inflatable bag may overlie the toe-rest. The bag is inflated by a valve 11 before the wiper advances. to mould the feather line on the upper. After the operation, fine wire staples may be inserted at each end of the tip line and rearward of the ball line. The work may then pass to the machine described in Specification 235,286 for heel seat lasting, and may thereafter be side-lasted. The inflatable pad device may be applied to a bed-lasting machine. Specification 206,438, and 332,563, [Class 17 (ii), Boots and shoes, Construction of], also are referred to.
Patent GB-1416816-A (GB)
Title: Dispensing containers for liquids
IPC: B65D77/06
Filed: 1973-01-16
Abstract: 1416816 Dispensing containers SCHOLLE CORP 16 Jan 1973 [17 Jan 1972] 2162/73 Heading B8P A flexible bag 16 with dispensing means 20 is retained in a dairy case 10 by a member 22 of tubular metal, or of a metal or plastic sheet, or in the form of a wooden lath and which engages hand holes 12 in the case. The dairy case may be of wire, wood, or a plastic. The member 22 may alternatively cover the open top of the case or be a removable or hinged lid. There may be a liner 26 of kraft paper between the bag and the case, flaps 28 formed by slitting the corners 36 of the liner fold down over the top of the bag. A weakened portion in the liner enables the dispensing means 20 to be drawn out through one of the hand holes.
Patent GB-807489-A (GB)
Title: Pneumatic conveyor pipe line for conveying material in dust or powder form
IPC: B65G53/20
Filed: 1957-01-21
Abstract: 807,489. Pneumatic conveyers. HERMANNS, W. Jan. 21, 1957, No. 2167/57. Class 78 (1). Compressed air carrying powdered material along flexible tube 4 is given a boost and a turbulent movement by the introduction of additional air from inlet 3, the additional air passing into the tube 4 through a porous section S thereof which is centred in the jacket 2 by supports 6 and is strengthened by wire lattice 5.
Patent GB-588076-A (GB)
Title: Improvements in or relating to foldable chairs
IPC: A47C4/52
Filed: 1945-01-29
Abstract: 588,076. Foldable chairs. COMPACTIBLE FURNITURE, Ltd., HUTCHISON, C. A., STEBBING, W. J., and SUMNER, W. Jan. 29, 1945, No. 2247. [Class 52 (ii)] A foldable chair comprises two side frames 1, 2, each including a series of struts 3, 4, 5, 6 pivoted together at 7, 8, 9, 10 to form a lazy tongs which is foldable in the plane of the side frame, means for connecting the side' frames and supporting them in upright spaced relationship when the chair is erected, and a backrest and seating surface conjointly formed of a length of flexible material slung between cross members attached. to the upper part of the back and to side frame struts at the front of the chair. The frames 1, 2 are connected together by the pivotally mounted, foldable cross struts 11, 12, which are each formed in two parts pivoted together in overlapping relation at 13 and provided with stops 14, and by the foldable strut 17 hinged at 18 and with a similar stop 14. Tubular members 19 mounted on the upper ends of the struts 3 form sockets 20 which receive the lower ends of extension members 21. Pins 24 in the upper ends of extensions 21 and struts 6 receive detachable cross bars 22, 23 between which the canvas seat 25 is slung. The cross bar 22 is provided with a handle 26 attached by tacks 27 and having tying cords 28 by which the collapsed chair may be tied up and transported. In a modification a separate cover which also serves as an awning is provided.
Patent GB-603912-A (GB)
Title: Improvements in or relating to the manufacture of shellacs
IPC: C09F1/00
Filed: 1946-01-23
Abstract: <PICT:0603912/III/1> <PICT:0603912/III/2> Shellac is obtained in a readily soluble form with a low moisture content by extruding it, while in a plastic state resulting from its treatment with hot or boiling water, into a fine thread-like form by means of an extrusion apparatus maintained at a raised temperature.  Referring to Fig. 1, a centrifugal bowl a is driven by belt b from motor c which also drives fan d delivering air through heater e to two pipes f and g.  Pipe f is located above the bowl and projects hot air on to the contents, while pipe g below the bowl projects air upwards on to the bowl. Shellac introduced through hopper h and heated by air from pipe f passes through numerous small holes in the side walls of the bowl in the form of fine rods which break off through their own weight and drop on to a conveyer belt.  Air from pipe g flows past the shellac coming out of the holes and removes moisture therefrom. Projections on casing i can assist in the breaking off process while the heater e should be thermostatically controlled at about 105 DEG  C.  Fig. 3 shows a press with a ram k, a container m and a perforated die-plate n.  Around the container is a steam heating pipe o and in the container a thermometer p.ALSO:Shellac is obtained in a readily soluble form with a low moisture content by extruding it, while in a plastic state resulting from its treatment with hot or boiling water, into a fine thread-like form by means of an extrusion apparatus maintained at a raised temperature.  Referring to Fig. 1, a centrifugal bowl a is driven by belt b from motor c which also drives fan d delivering air through heater e to two pipes f and g. Pipe f is located above the bowl and projects hot air on to the contents, while pipe g below the bowl projects air upwards on to the bowl.  Shellac introduced through hopper h and heated by air from pipe f passes through numerous small holes in the side walls of the bowl in the form of fine rods which break off through their own weight and drop on to a conveyer belt.  Air from pipe g flows past the shellac coming out of the holes and removes moisture therefrom.  Projections on casing i <PICT:0603912/IV(a)/1> <PICT:0603912/IV(a)/2> can assist in the breaking off process while the heater e should be thermostatically controlled at about 105 DEG  C.  Fig. 3 shows a press with a ram k, a container m and a perforated die-plate n. Around the container is a steam heating pipe o and in the container a thermometer p.
Patent GB-983051-A (GB)
Title: Aircraft
Inventor: SHAW WILLIAM
IPC: F02C7/042
Filed: 1964-01-17
Abstract: 983,051. Gas turbine plant. ROLLS-ROYCE Ltd. Jan. 17, 1964, No. 2267/64. Heading FIG. [Also in Division B7] A gas turbine jet propulsion engine has an intake 15 hinged at 16 for retraction into the fuselage to prevent the entry of ram air. In addition fairing 20 may be extended by a jack 24 to cover the tailpipe. The engine described is the central one of three tail-mounted engines, the other two being podded.
Patent GB-1161184-A (GB)
Title: Hair Curler.
Inventor: COMPERE ALPHONSE
IPC: A45D6/04
Filed: 1968-01-16
Abstract: 1,161,184. Hair curling; self-winding roller. A. COMPERE. 16 Jan., 1968 [17 May, 1967], No. 2278/68. Heading A4V. A hair curler which automatically winds a lock of hair upon a spring-driven rotating roller on release of a manually operated clutch, comprises a hollow drum 1 rotatably mounted on a spindle consisting of telescopically engaged inner and outer members 4 and 5, that are urged apart by a compression spring 13. The spindle members are preferably non-rotatable relative to each other and have end portions 7 and 14 projecting through cylindrical apertures in end caps 2 and 3, these end caps being rigidly secured to the drum. The spindle end portion 14 has a ridged frusto-conical clutch surface 15 engaging with a corresponding ridged inner face of the aperture in end cap 3. A coiled torsion spring 18 surrounding the spindle, has its one end attached thereto at a point adjacent to the clutch head, and its other end 18<SP>1</SP> secured to the inside of the drum at 1<SP>1</SP>. A hair clamping jaw 21, fitting into a corresponding recess 20 in the outer face of the drum, is hinged to the drum at 22 and has a fastening stud 27 which enters an aperture 28 to engage with a clasp 29 on the inner face of the drum. Along its opening edge the jaw has a strip of resilient friction material which mates with grooves 26 when the jaw is closed. An L-shaped rod 8 is non-rotatably secured by its shorter arm in the spindle end portion 7, with its longer arm extended over and along the drum. In use, the torsion spring 16 is initially stressed, a lock of hair is inserted under rod 8 and clamped against the drum face by closing on it the jaw 21. The spindle ends 7 and 14 are then manually pressed towards each other against the action of the compression spring 13, whereupon the cooperating clutch faces at 15 are disengaged and the stressed torsion spring rotates the drum and winds the hair-lock thereon. The hair is removed by again disengaging the clutch and pulling on the hair curler, when the hair unwinds and re-stresses the torsion spring for another curling operation. Several alternative types of hair locking jaw are described; also the coiled form of torsion spring may be replaced by a helical clockwork type spring.
Patent GB-236835-A (GB)
Title: Improvements in rag picking machine
IPC: D01G11/04
Filed: 1925-01-26
Abstract: 236,835. Alexander, H. G. Jan. 26, 1925. Openers.-A cylinder for a rag-picking machine comprises a metal cylinder 15, Fig. 2, with undercut grooves 16 in which are held toothed bars 20, Fig. 4. The bars have. flanges 22 and ane secured in pairs by bars 24 held by bolts 18. The teeth are radial and are staggered in adjacent bars. The cylinder is mounted by bolts 27 on spiders 26, secured to the shaft and is provided with end plates 28.
Patent GB-166573-A (GB)
Title: Clips for connecting metal rails, plates, castings, or sectional material and the like, to other forms of construction including timber, without directly bolting
IPC: E01B9/28
Filed: 1918-02-08
Abstract: 166,573. Kay, W. Feb. 8, 1918. Girders and beams.-A clip for securing together transverse constructional members of metal or wood without direct bolting, consists of a lower and upper plate held together by a screw, bolt &c., which passes into or through the, lower constructional member. The lower plate has an upper inclined straight or curved surface, the outer end of which forms a fulcrum for the upper plate and has an upstanding flange; a chiselshaped projection may be formed on the lower surface for use with wood-work. The upper plate acts as a tilting gripping-jaw and is held down by the bolt.
Patent GB-876019-A (GB)
Title: Improvements in pipe connections
Inventor: ALEXANDER ARTHUR
IPC: G01F15/18
Filed: 1957-01-22
Abstract: 876,019. Pipe joints. PARKINSON COWAN Ltd. Jan. 9, 1958 [Jan. 22, 1957], No. 2325/57. Class 99(1). A pipe connecting arrangement for making a fluid-tight connection between two adjacent ends of a pipe line comprises a connecting piece 17 having co-axial or parallel ends 15, 16. Pipe line end pieces 23 slidably fit inside or outside the ends 15, 16, with fluid tight packing 27 therebetween. The pieces 23 which may be angled have a screwed part 24 for connection to the pipe line so that they can be adjusted axially and angularly and finally secured by a grub screw 28. As shown, the connecting piece 17 is formed, as described in Specification 876,018 so as to connect the pipe line to a meter.
Patent GB-305982-A (GB)
Title: Improvements in pedal protectors for musical instruments
Filed: 1929-01-23
Abstract: 305,982. D÷l1ing, A., and D÷lling, A., (trading as D÷lling, A. & M.). Feb. 13, 1928, CConvention date]. Pianoforte &c. pedals.- An indiarubber pedalprotector in the form of a sheath, ribbed at a for the foot, has a constricted opening g to the cavity h, which cavity is slightly larger than the pedal, so that the sheath may be retained in place by suction.
Patent GB-581831-A (GB)
Title: An improved multi-outlet plug and socket adaptor for electric circuits
IPC: H01R13/68
Filed: 1945-01-31
Abstract: 581,831. Two-part couplings. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and MOOR, E. Jan. 31, 1945, No. 2407. [Class 38 (i)] In a two-pin and a three-pin adaptor the sockets 23, 24, Fig. 4, and 46, 47, 51, 52, 59, 60, Figs. 11, 14, and 21, are mounted upon an insulating support 10 which is secured to a top portion 5 of the adaptor body 2 and has projections 21, Fig. 3, or shoulders 68, Fig. 10, to support the sockets. A base portion 4 of the body is detachably secured to the support 10 by a screw 14, to give access to fuses 39. Pins 1, 41, are screwed into feet 19 on the support and in the two-pin adaptor, Fig. 3, each fuse is interposed between resilient contacts 32 on the unitary socket structure and contacts 36 secured under the feet 19 and to the pins 1. In Fig. 10, a single fuse 39 is' beld by contacts 58, 76, connected to a socket 51 and pin 1, respectively. Spare fuses 74, Fig. 11, are held in place by projections 75. The support 10 has a projection 72 bracing the earthing socket structure 59, 61 which is secured at 63 under the foot 19, Fig. 11. The socket-structure 46, 47, is secured under the third foot 19.
Patent GB-1109373-A (GB)
Title: Plug contact
Inventor: HEATH CLARENCE WILLANS
IPC: H01R13/04
Filed: 1966-01-19
Abstract: 1,109,373. Connector contacts. CARR FASTENERS CO. Ltd. 8 Nov., 1966 [19 Jan., 1966], No. 2487/66. Heading H2E. [Also in Division B3] An electrical plug contact is made of sheet metal and includes a body 1 having integral clamping means 2, 3 for securing a lead wire and an integral plate-like element 4 at the opposite end, which element is defined by overlapping portions 5, 6 of the body, at least one of the portions having an integral resilient tongue 5a. 6a extending at an angle to the plane of the plate-like element 4.
Patent GB-1202721-A (GB)
Title: Polyamides
Inventor: INGHAM PHILIP BRIERLEY
IPC: C08G69/26
Filed: 1967-01-18
Abstract: 1,202,721. Basic-dyeable polyamide. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 Dec., 1967 [IS Jan., 1967], No. 2634/67. Heading C3R.  Polyamides of enhanced affinity for basic dyestuffs are obtained by incorporating therein 0À1  to 10 mol. per cent of units derived from a diamine or diacid of the formula where X is -COOH or -(CH 2 ) m NH 2 , m is 1 to 6 and M is alkali metal. The polyamides are derived from a lactam having 7 to 13 ring atoms or the corresponding.amino acid or from substantially equimolar proportions of a diamine and a dicarboxylic acid each containing at least 2 carbon atoms between the functional groups. The sulphonated diamine or diacid may be used in the form of its salt with an appropriate diacid or diamine to ensure that the resulting copolyamide is fibre-forming. Conventional ingredients such as heat and light stabilizers and molecular weight regulators may be present during the polymer preparation. Various polyamide monomers are specified. In the example 2À23 parts 2,2<SP>1</SP>.di(sodiosulpho)diphenyl.5,5<SP>1</SP>. dicarboxylic acid together with 0À58 parts hexamethylene diamine are incorporated with 131 parts nylon 66 salt which are hydrolytically polymerized in the presence of 0À3 parts acetic acid.