baber/WOPTO huggingface dataset:
Patent GB-1483751-A (GB)
Title: Toy caravan
IPC: A63H17/00
Filed: 1975-01-24
Abstract: 1483751 Toy caravans AIRFIX PRODUCTS Ltd 24 Jan 1975 [24 Jan 1974] 03433/74 Heading A6S A toy caravan has a base 10, a roof, end walls and drop-down side walls 14, 15 the latter attached to the base 10 by hinges 16, 17 and carrying one or more wheels 20, 21 such that they retract when the side walls 14, 15 are lowered. The roof and end walls may comprise a single curved item 11 having two slots at each end for securing corresponding tongues 31 on the base 10, a screw 32 at each end completing the assembly. Between each pair of hinges 16, 17 is a well 18, 19 having a rear wall 18a, (19a Fig 1, not shown) parallel to the side wall and carrying two wheels 20, 21 on stub spindles 22 normal to the walls 18a, (19a Fig.1 not shown). The base 10 also has wells 10a, 10b to accomodate the wells 18, 19 and the wheels 20, 21. With the side walls 14, 15 upright the wheels 20, 21 extend below the base 10 and the caravan may be towed by means of a hitch 23; with the side walls 14, 15 down the base 10, side walls 14, 15 and the ends of the spindles 22 are co-planar. Windows W and a door D in the side walls 14, 15 have frames which together with frames surrounding the wells 18, 19 project to raise the side walls 14, 15 and base 10 clear of the supporting surface. To keep the side walls 14, 15 upright each has a rib 24 near its upper edge for locating in a complementary groove 25 in each side of the combined roof-and-end-walls 11. Each side wall 14, 15 also has a lug 14a, 15a that snaps into a recess in the roof of 11. A table 27, seats 28, 28 swimming pool 29, platform 30 and diving board are fixed to the inner surfaces of the side walls 14, 15, the seats 28, 28 being formed with the window W as a single unit that is pushed through holes in the side wall 14, and the platform 30 formed similarly with the door D. A horizontal partition 26 within the caravan has depressions forming or holding beds. A ventilator 12 and end windows 13 are also provided.
Patent GB-886876-A (GB)
Title: Weighing apparatus
IPC: G01G23/18
Filed: 1958-02-03
Abstract: 886,876. Digital electric calculating apparatus. HOBART MANUFACTURING CO. Feb. 3, 1958 [Feb. 1, 1957], No. 3458/58. Class 106 (1). A weighing system comprises in combination a power-operated scale, a computer responsive to operation of the scale and to a manually entered price per unit weight, a printer and a ticket issuing machine for issuing a ticket recording the value and weight of the article being weighed, the system being characterized by a manual control which is only effective to cause a ticket to be issued when the article being weighed lies within a certain weight range and when the scale has completed its weighing. The system described comprises a scale, as described in Specifications 643,466 and 773,395, a computer similar to that described in Specification 803,413, a printer as described in Specification 808,235 and a ticket-issuing machine as described in Specification 809,719. In operation an article is placed on the scale, the price per unit weight is set on rotary switches, a control button is depressed and then a ticket recording the weight and price is issued. The computing system differs from that described in Specification 803,413 in that once the movement of the scale pan has been followed by a servo-mechanism, as described in Specification 808,549, to position rotary switches in accordance with the weight, the rotary switches control relays which record the weight (instead of, as in Specification 803,413, the rotary switches having their positions stored by further rotary switches). Fig. 16 shows the rotary switch for the one-hundredth digit of the weight. For each of its ten positions corresponding ones of relays 310-315 are energized, and the contacts of these relays effect the entry of the weight into the calculation which is done in the same way as that described in Specification 803,413. All the above-mentioned Specifications, and Specifications 733,396, 886,877 and 886,878, are referred to.
Patent GB-544834-A (GB)
Title: Piezoelectric crystal apparatus
IPC: H03H9/05
Filed: 1941-03-14
Abstract: 544,834. Piezo electric crystals. STANDARD TELEPHONES & CABLES, Ltd. March 14, 1941, No. 3491. Convention date, March 29, 1940. [Class 40 (v)] A quartz crystal plate 1 adapted to have a low temperature coefficient in a longitudinal mode is cut from the mother crystal such that its length L is substantially in the YZ plane and is inclined from 0 degrees to 10 degrees to the Y axis, its major surfaces are inclined from 30 degrees to 48 degrees to the YZ plane, and the ratio of length L to width W lies between .25 and .85. Curves are given to show how a low temperature coefficient crystal can be chosen from this range to provide desired frequencies. Fig. 4 shows a holder for a crystal plate 1 having four electrodes deposited on its surfaces. The crystal is clamped between four screws 25, 26 the screws 25 being biased by springs 27 carried by the insulating supporting block 10. The screws 25, 26 also serve for the connection of leads the other ends of which are attached to contact pins 12 carried by the base 13 of the evacuated metal bulb 11. The assembly is resiliently mounted on phosphor bronze springs 30, 31. Other methods of mounting the crystal may be used. Specifications 533,731 and 540,184 are referred to.
Patent GB-156424-A (GB)
Title: Improvements in or relating to sand-filters
IPC: B01D35/14
Filed: 1919-10-01
Abstract: 156,424. Barron, N. M. Oct. 1, 1919. Upward-current classifiers.-Sand-washing and elevating apparatus used in filtering-plant comprises a series of buckets P connected by pipes Q fitted with injectors R' to which water under pressure is supplied from a chamber R<1>. Water for washing is supplied through pipes o<2>, o<3> to the bottom of each bucket, overflow from the buckets passing away through pipes P<1>.
Patent GB-1073846-A (GB)
Title: Automatic weapon mounted in an armoured turret
IPC: F41A9/54
Filed: 1966-01-26
Abstract: 1,073,846. Automatic weapons. RHEINMETALL G.m.b.H. Jan. 26, 1966 [Feb. 6, 1965], No. 3524/66. Heading F3C. An automatic weapon having a shield 4 is mounted in an armoured turret 1 (Figs. 1, 2, not shown) for pivotal movement in a vertical plane. A belt feeder 5 is detachably connected to the weapon and operable to feed ammunition to the weapon, the feeder 5 being pivotally mounted on a spindle arrangement disposed in a plane parallel to the vertical longitudinal plane of the weapon. The spindle arrangement is guidedly supported so that it is vertically movable in the parallel plane. The spindle arrangement may comprise a spindle 12 or short bearing pins projecting from the feeder 5, the ends of the spindle or pins co-operating with slots 13, 14 in metal guides 13<SP>1</SP>, 141 which are secured to the weapon cradle 3. The feeder 5 is packed in position on the cradle 3 by means of a projection 7 and recess 9 assembly, a projection 8 and latch 10 assembly, and a claw attached to the spindle and co-operating through rotation of the spindle with a notch in the guide 141 (Figs. 6, 7, not shown). The front end of the feeder 5 is supported by a spring 15. As the slot 14 is larger than the slot 13, on release of the feeder 5, the feeder moves downwardly and then pivots about the slot 14 to disengage the mouth 6 from the weapon. The feeder 5 is further guided by two rollers 23 mounted on the metal guides 13<SP>1</SP>, 14<SP>1</SP>. The feeder may then be swung away from the cradle about the longitudinal axis of the pivot spindle 12. A flat magazine may be substituted for the feeder 5 (Fig. 5, not shown).
Patent GB-1089266-A (GB)
Title: Production of polymers having improved dye and ink receptivity
IPC: C08F8/00
Filed: 1965-01-27
Abstract: Polymers containing polar groups are obtained from hydrocarbon polymers by subjecting a hydrocarbon polymer having ethylenic unsaturation, in the presence of a free radical initiator, to reaction with a chain transfer agent which contains one or more polar groups and is used in a quantity stoichiometrically exceeding the degree of unsaturation of the polymer, and continuing the reaction until a polymer having the desired content of polar groups is obtained.  The unsaturation in the hydrocarbon polymer may be obtained by polymerizing an appropriate monomer, or may be introduced as an after-treatment, e.g. pyrolysis. Specified hydrocarbon polymers are the pyrolysis products of homopolymers of ethylene, propylene, 3-methylbutene-1, 4-methylpentene1, vinylcyclohexanes, vinylnapthalenes, allylbenzenes, methallylbenzenes, styrene, alphamethylstyrene, alpha-methyl-p-methylstyrene, isopropenyltoluene and of copolymers of ethylene with propylene, and ethylene and/or propylene with styrene, vinylcyclohexane, 3methylbutene-1 or 4-methylpentene-1. Suitable chain transfer agents include alkanoic acids and anhydrides, sulphonic acids or salts thereof, alcohols, nitriles, esters, aldehydes and ketones, preferably such compounds in which the polar functional group is linked to an alkyl group having up to 5 or 6 carbon atoms.  The free radical initiator may be an aliphatic, cycloaliphatic or aromatic hydrocarbyl peroxide, a diacyl peroxide, a per-ester, or an inorganic persalt. The components may be reacted in an inert liquid medium, e.g. a liquid saturated aliphatic hydrocarbon, or in a large excess of a liquid chain transfer agent. Heating is generally employed, e.g. from 60-300 DEG  C.  The products containing polar groups can be blended with polymers having low dye or ink receptivity to improve said receptivity of the latter polymers; an example discloses polyethylene blended with a carboxylated polyethylene pyrolysis product and heat stabilized with diethyl maleate, from which blend films are obtained which can take up dye or ink.
Patent GB-524610-A (GB)
Title: Submarine high frequency electric cables
IPC: H01B7/14
Filed: 1939-02-02
Abstract: 524,610. Cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd., and SMITH, E. W. Feb. 2, 1939, No. 3562. [Class 36] Submarine high-frequency cables having airspace insulation, for example such as described in Specifications 467,268 and 470,760, and having either twin conductors enclosed in a common sheath or having inner and outer conductors 1, 3, surrounded by cotton binding 4 and a thin lead covering 5, are provided with a pressure-resisting armouring comprising two layers 6, 7 of steel or like metal tape wound with a short lay and with the outer tape bridging the gaps between adjacent turns of the inner tape, the tape being of greater width than the distance between the successive spacing washers 2. The armouring 6, 7 is surrounded by a water-resistant lead sheath 8 which is armoured and served. The gaps between the adjacent turns of the tapes 6, 7 may be filled in with paper, string or other fairly hard material. The outer conductor 3 may be in the form of a tape so shaped that the successive turns interlock with one another, and the tapes 6, 7 may be so shaped that the tapes of the upper and lower layers interengage. In making a joint between successive lengths of the cable, the conductor 3, lead covering 5, and steel tapes 6, 7 on the abutting ends are cut back in stepped formation, and the washers 2 are melted out for a certain distance and replaced by solid plugs and plastic material. The ends of the central conductor 1, are bound with wire 11 and soldered, and a copper sleeve 10 is placed over the conductor 1 and welded to the conductor 3. Wiped joints are provided over the lead covering 5, conductor 3, and sleeve 10, and the ends of the layers 6, 7 are welded together. The interior is filled with plastic material through a hole in the sleeve 10 which is afterwards closed by a cap 15 welded thereon. In a modification, the tapes 6, 7 may be wound back from the ends prior to jointing and afterwards replaced and welded.
Patent GB-1409534-A (GB)
Title: Erasure of tape-carried information
IPC: G11B11/03
Filed: 1972-01-26
Abstract: 1409534 Erasing records MARCONI CO Ltd 16 Jan 1973 [26 Jan 1972] 3567/72 Heading G5R A topographical recording 8 on a thermoplastic tape 6 is erased by infra-red heating from a source 1.
Patent GB-265970-A (GB)
Title: Improved process of goffering films for colour photography
IPC: G03C7/14
Filed: 1927-02-08
Abstract: 265,970. Brosse, P. Feb. 9, 1926, [Convention date]. Burnishing by compression. - Kinematograph films are directly impressed with a pattern of linear refracting elements by means of a cylinder upon the polished surface of which has been formed either a continuous helical groove or a series of parallel peripheral grooves by means of a diamond burnisher which is perfectly shaped and polished. The surface of the cylinder may be covered with a layer of sheet metal, such as gold or silver, adapted to give a high polish. The Specification as open to inspection under Sect. 91 (3) (a) describes also a tool A, Fig. 1 (Cancelled) having for example a diamond point, and mounted on a block B pivoted between the arms of a yoke D fixed on the tool-holder of a dividing machine. A spring E or screw-compressed felt, bearing on the block B presses the tool upon the cylinder. The diamond point may be replaced by a calibrated hard metal wire resting in a notch in a hard steel thrust block, and the wire may be paid off at a speed slower than the peripheral speed of the cylinder so that the effective part is continually renewed. Several wires, each in a separate notch in the thrust block, may be used. The tool for producing parallel grooves, for example on a long cylinder intended for impressing wide bands of film material, may comprise a hard metal wire wound round a rectified chuck connected by two perpendicular arms with a parallel bar, the winding being such that the wire crosses over between the chuck and the bar at every other turn. This subject-matter does not appear in the Specification as accepted.
Patent GB-628638-A (GB)
Title: Improvements in or relating to devices for discharging liquids in the form of a shower
IPC: B05B1/18
Filed: 1947-02-07
Abstract: 628,638. Spray-producers; valve closure members. PINTO, D. DA C., and CAMPOS, L. V. Feb. 7, 1947, No. 3743. [Classes 69 (iii) and 135] In a spraying device comprising a conical valve closure C accommodated within a seating B screwed to a rose A, the closure has openings in its side for the passage of liquid. A valve guide D is screwed to the seating B and limits the movement of the valve C which is operated by a string or chain attached to a rod G. The device is fitted to a bucket or pipe by clamping the base thereof between portions D and B.
Patent GB-1409843-A (GB)
Title: Prostaglandin intermediates
IPC: C07F9/40
Filed: 1973-05-02
Abstract: 1409843 Prostaglandin intermediates UPJOHN CO 2 May 1973 [10 May 1972] 3791/75 Divided out of 1409841 Heading C2C Optically active prostaglandin intermediates of the Formula I or racemates thereof, wherein g is 2 to 5, E is oxo or M is or wherein THP is 2-tetrahydropyranyl, R 2  and R 3  each are H, methyl or ethyl, T is C 1-3  alkyl, C 1-3  alkoxyl, F, Cl or CF 3 , and s is 0 to 3, with the proviso that not more than two T's are other than alkyl and when s is 2 or 3 the T's may be the same or different are prepared by reducing optically active lactones of the formula or racemates thereof, the Wittig alkylation with compounds of the formula wherein Hal is Cl or Br, of the resulting lactols, and, if desired, oxidizing the 9-hydroxy group in the compounds of Formula I above, in which E is thus obtained.
Patent GB-873564-A (GB)
Title: Circuit with transistors for wide-band amplification
IPC: H03G1/00
Filed: 1960-02-03
Abstract: 873,564. Transistor amplifying circuits. TELEFUNKEN G.m.b.H. Feb. 3, 1960 [Feb. 4, 1959], No. 3822/60. Class 40(6) A wide-band transistor amplifier comprises an emitter follower directly connected to the base of a common-emitter transistor, temperature stabilized by means of current and voltage feedback; gain control being provided by variable resistance means in parallel with a resistor in the emitter circuit of the common-emitter transistor. Input signals are applied at terminal 1 of an emitter follower 3 directly connected to transistor 7 provided with a load 8 and emitter resistors 10, 11; output signals being obtained from terminal 9. The circuit is stabilized against temperature variations by current feedback through resistors 6, 10, 11 and voltage feedback through resistor 12 and voltage divider 13, 14; resistor 14 being temperature dependant. The variable resistance means are provided either by transistor 17, the collector-emitter impedance of which is made to vary by a regulating voltage applied to the base through resistor 18, diodes, variable resistors or potentiometers. Transistor 3 may be connected to transistor 7 via a resistor bridged by a capacitor.
Patent GB-300434-A (GB)
Title: Improvement in sump or bilge pump
IPC: F04D9/04
Filed: 1928-02-07
Abstract: 300,434. Jennings, I. C. Feb. 7, 1928. Pumping-machines; casings; impeller blades; starting, facilitating.-A pump for removing seepage or drainage water from a sump and discharging it at a higher level into a sewer, has a volute casing with a hole at the side of the impeller through which air can be exhausted from the pump and inlet. The suction pipe B extends into the sump A and has an elbow C bolted to the side of the pump casing E containing the inlet E<1>. The impeller F and a rotary air pump K are carried by the shaft L of an electric motor and are separated by an air head I associated with the pump casing. A manifold Q has two passages R, S connected at the top and communicating with passages R', S<1>, in the pump casing. A hole T connects the passage R<1> with the interior of the pump at a point outside the inlet eye, while the opening U connects the passage S' with the central inlet. A separator tank M is arranged above the manifold Q and is connected by a pipe N to the air pump K. When the liquid in the sump A reaches a predetermined height, the float A operates an electric switch to start the motor. The air pump K then draws air from the centrifugal pump through the openings T, U, until the latter pump is completely filled with water. Any additional air entrained by the liquid will be passed out through the opening T; water will also pass out through the opening T and will pass back through the passage S to the entry E<1>. The air passes upwards into the separating chamber M and from thence to the air pump K and discharge pipe O. The chamber M contains a valve which is opened to the atmosphere by a float if the liquid level rises high enough. The impeller has two blades and is held in place by the rounded nut 10, Fig. 2. The faces of the blades are gouged as shown at 11 in Fig. 7, so that the gouged part extends inside and outside the area of the inlet eye. The construction provides a smooth clear passage through the pump. The part B<1>, D are provided for convenience in cleaning. In a modification the opening U is arranged in the elbow C and is connected to the air pump by a pipe to which is joined another pipe from the opening T.
Patent GB-347332-A (GB)
Title: Improvements connected with holders for gramophone records
IPC: G11B33/04
Filed: 1930-02-05
Abstract: 347,332. Holders for gramophone records. REES, D. E., 1, Oxford Street, Barry, Glamorganshire. Feb. 5, 1930, No. 3844. [Class 18.] A holder for gramophone records in which a pivoted lever 9 slidable along a rod 8 may be operated by depressing a knob 11 to raise a selected record 5 so that its top projects above a containing rack 4, has the rod 8 mounted in slots 7 with curved ends 13 so that the rod may be held by springs 14 either at the inner ends of the slots 7 or at the outer curved ends 13 so that the knob 11 is outside the holder for actuation or inside for facilitating transport. A part 12 on the holder may be graduated to serve as an indicator, and a comb may be positioned behind the rod 8 which normally allows the rod 9 to slide but which, when the knob 11 is depressed, engages the lever 9 between two of its teeth to keep it in correct position. The slots of the rack may be lined and the bottom of the rack on which the records rest slopes inwardly.
Patent GB-1000821-A (GB)
Title: Improvements in or relating to the manufacture of non-woven fabrics
Inventor: DAVIES THOMAS PARRY
IPC: D04H1/64
Filed: 1961-02-01
Abstract: Non-woven fabric is made from an "unbonded textile fibre web" in which the fibres lie mostly in one direction by re-orienting the fibres by stretching or contracting the web in a direction normal to the one in which the fibres originally lie, by causing the web to adhere with an endless moving belt comprising an elastic fabric incorporating "naked threads" of rubber or of other elastomeric materials and which is stretched or contracted latually.  The expression "unbonded textile fibre web" includes a web which has been treated with a bonding agent without reducing the capacity of the fibres to re-orientate when the web is stretched or contracted.  The expression "naked threads of rubber &c." denotes threads which before incorporation or conversion into a fabric have not been covered with textile threads or filaments; a suitable carrier incorporating such threads is made from a fabric comprising warp-knitted 100 denier flat nylon thread and naked rubber threads made up of three 56-count parallel filaments adhesively secured together.  The web may comprise fibres of one or more of cotton, rayon, cellulose ester, polyethylene terephthalate, polyamides or acrylies.  A web of carded fibres A is fed on to an endless belt 20 of fabric of the kind referred to which is connected at its edges to chains or belts 25, 26 passing over sprockets on shafts 21, 23, the sprockets on shaft 23 being further apart than those on shaft 21. Water, or a solution &c. of a bonding agent, e.g. polyvinyl acetate is fed by a spray 31 on to a wet-out roller 28, the amount of liquid carried along being controlled by adjusting the distance of roller 28 above the belt surface.  Excess liquid is removed by a suction box 32, and the web is fed on to an air-oven with or without prior treatment between a pair of print rollers which deposit an emulsion of polyvinyl acetate in defined areas.  The web may be stretched by from 100% to 300% of its original width by adjusting the positions of the sprockets on shaft 23, but for large extensions, the angles formed by the edge of the belt with the shaft 21 should be kept at a minimum value by adjusting the distance between the two shafts.  A second belt 33 may be superposed to prevent the web slipping on the carrier, in which case no liquid need be used.  The stretched web is supported on an inextensible carrier until it has been bonded and dried to prevent longitudinal stresses being set up which would tend to re-orientate the fibres towards their original direction of alignment.  The stretching may be carried out in stages by passing the web through a series of units each imparting a proportion of the ultimate stretch desired; also, the stretching of the web can be followed by stretching in a direction at right angles to that of the original stretching so that some of the fibres return to their original orientation.
Patent GB-179292-A (GB)
Title: Improvements in combined electric plugs or holders and circuit breaking devices
IPC: H01R13/71
Filed: 1921-02-02
Abstract: 179,292. Poncet, L. Feb. 2, 1921. Electric hand-irons.-The incoming leads pass through plug connectors one of which comprises a combined switch and plug which is controlled by the projecting roughened head a<2> of an insulating member carrying the movable socket. To permit the switch to be mounted in a position clear of the operator's hand gripping the handle y it is secured at right-angles to an inclined portion g of the outer casing joining the arched front portion g<1> to the horizontal rear portion g<2>. The switch can therefore be operated while the iron is held.