baber/WOPTO huggingface dataset:
Patent GB-386005-A (GB)
Title: Process for the production of polyvinyl compounds
IPC: C08F8/12
Filed: 1931-03-30
Abstract: Polyvinyl compounds soluble or dispersible in water are manufactured by partially hydrolysing a polyvinyl ester, in the presence of a solvent therefor, with the aid of aqueous acid hydrolysing agents. The process is advantageously carried out by subjecting the polyvinyl ester, dissolved in acetic or other lower fatty acid, to the action of water in the presence of a strong mineral or other acid. Compounds in which hydrogen atoms in the vinyl residue are replaced by other atoms or groups are manufactured analogously.  The products are valuable materials for sizing or impregnating fibrous materials, particularly textile yarns or other textile materials, being readily removable by washing or scouring in aqueous liquids.  In an example, polyvinyl acetate is hydrolysed in 90 per cent acetic acid in the presence of sulphuric acid.  The product, after separating from acetic acid, e.g. by dilution and dialysis, may be used for sizing textile yarns.  Poly-(methylvinyl) acetate (obtainable by polymerizing methylvinyl acetate which may be prepared by condensing methylacetylene with acetic acid in the presence of a mercury compound) may be similarly treated.  Reference has been directed by the Comptroller to Specification 351,082.ALSO:Partially hydrolysed polyvinyl esters (in which hydrogen atoms in the vinyl residue may be replaced by other atoms or groups) are valuable materials for sizing fibrous materials, especially textile yarns or other textile materials.  The compounds are soluble or dispersible in water and are thus readily removable from the material by washing or scouring in aqueous solutions.  An example describes the use of the compound obtained by hydrolysing polyvinyl acetate or poly-(methylvinyl) acetate in 90 per cent acetic acid in the presence of sulphuric acid, the acetic acid being removed, e.g. by dilution and dialysis. Reference has been directed by the Comptroller to Specification 351,082, [Group IV].
Patent GB-438673-A (GB)
Title: Improvements relating to electric power cable systems
IPC: H02G15/26
Filed: 1934-07-25
Abstract: 438,673. Hydraulic accumulators. OKON1TE - CALLENDAR CABLE CO., Inc., Paterson, New Jersey, U.S.A. July 25, 1934, No. 21767. Convention date, Sept. 2, 1933. [Classes 69 (ii) and 135] [See also Group XXXVI] A device for maintaining a substantially constant pressure on the oil filling of a cable 1 whilst providing for expansion and contraction of the oil comprises a fixed hollow piston 6 on which is adapted to slide a cylinder 7 loaded with weights 8, the piston and cylinder being filled with oil and connected with the cable 1 through a pipe 3 so that the pressure due to the weights is communicated to the oil filling of the cable. Expansion or contraction of the oil filling is accommodated by vertical movement of the cylinder 7 on the piston 6. In a modified construction the loading of the cylinder 7 is effected hydraulically or by compressed air.
Patent GB-846104-A (GB)
Title: Improvements in and relating to the production of wrapped or coated pieces of plastic substance
IPC: A23G3/20
Filed: 1955-07-28
Abstract: 846,104. Moulding and wrapping toffee &c. TURNER, R. Oct. 26, 1956 [July 28, 1955], No. 21829/56. Class 87(2). Warm toffee issues from a batch feeder 1 and is shaped into a strip by pairs of opposed rollers 2, 3, one of which is flanged. Several strips may be formed side by side. The toffee may be shaped by extension and deposited on the conveyer between spacing members. The strip toffee is conveyed by a belt 4 through a tunnel 5 wherein cooling air is circulated by fans 6, the refrigerator being preferably located between the runs of the belt. The strip, thus normalised, is impressed by one or both pairs of rollers 8, 9. The patterned strip is subdivided by blades 12 on an endless moving band 11 interacting with blades 14 on a rotating disc 13, in addition to which there may be a grooved roller cooperating with the blades 12. The blades may be carried on the disc or band only, the other being plain. A reheating unit 22 may condition the toffee for cutting. For round strips the surface of the belt may be longitudinally grooved. The pieces of toffee are fed to a wrapping machine 10.
Patent GB-701790-A (GB)
Title: Improvements in processes for coating with metals by thermal evaporation in vacuo and apparatus therefor
IPC: C23C14/26
Filed: 1950-09-06
Abstract: 701,790. Coating with metals. EASTMAN KODAK CO. Sept. 6, 1950 [Sept. 24, 1949], No. 21912/50. Class 82 (2) [Also in Group XI] Materials are coated with metals by deposition in vacuo of metal vapours produced by melting and evaporating a portion of a body of coating metal by means of a localised alternating electro-magnetic field having a frequency of 5-50 kilocycles per second whereby that portion is electromagnetically compacted and laterally supported, whilst molten, out of lateral contact with physical supporting means. A chamber 10 is connected to pumping means 13, which may comprise diffusion pumps backed by a mechanical pump, and contains an induction coil 16 connected to a generator 18. A rod 27 of coating metal is fed manually, by the screw 22, or by power, into the coil 16. Strip material to be coated passes between driven rollers 28, 30. In a modification, the rod, of coating metal is fed through an aperture in the base of a crucible within the coil. In a batch process, a crucible 37, Fig. 4, containing coating metal is positioned within the coil 16-the metal when molten assuming the configuration shown at 38. Materials coated include foil, plastic films such cellulose acetate, textile materials, paper and leather; coating metals include aluminium, silver, gold, copper and chromium. The material to be coated may first be degassed in the coating chamber or elsewhere. Articles coated include lenses and other optical goods and costume jewellery.
Patent GB-961290-A (GB)
Title: Improvements in resilient surfaces for furniture
IPC: A47C31/04
Filed: 1963-05-31
Abstract: 961,290. Resilient seating surfaces. M. HELLER, and L. J. MOOLENAAR. May 31, 1963, No. 21913/63. Heading A4M. Resilient surfaces consisting of a plurality of tension springs, rubber bands or elastic webbing are connected to rigid support frames by fittings b which each comprise a single length of wire shaped to have a spiral head and two shanks with bent ends which shanks engage in holes d or a slot c in the frame a or hook around the frame.
Patent GB-614734-A (GB)
Title: Improvements in and relating to the trimming of the operating faces of work-pieces such as electrodes
IPC: B23B31/36
Filed: 1946-07-23
Abstract: 614,734. Sockets; making electrodes. MALLORY METALLURGICAL PRODUCTS, Ltd., and TUCKER, N. A. July 23, 1946, No. 21916. [Classes 83 (ii) and 83 (iii)] In a lathe &c. for trimming the operating face of a work-piece, e.g. an electrode, worksupporting means comprise a circular backing plate 7 for centrally mounting on a spindle and a second plate 10 adapted to carry work in several positions so that the face thereof lies perpendicular to the axis of rotation and approximately centred therewith, said second plate being rotatably and eccentrically mounted to allow the work to be displaced angularly and the face thereof accurately centred, by means of a clamping ring 11 engaging a flange on, and allowing rotation of, the eccentric plate and detachably secured to the backing plate. A holder 17 having a socket 18, which may be inclined to the axis, is secured by screws 21 to the eccentric plate 10 and mounts an electrode 20 so that a face 23 may be trimmed.
Patent GB-1162437-A (GB)
Title: Improved Roof Structure for Cylindrical Tanks and Method of Constructing Same.
IPC: E04H7/06
Filed: 1967-05-11
Abstract: 1,162,437. Roof structures for storage tanks. U.S. INDUSTRIES Inc. 11 May, 1967 [8 Feb., 1967], No. 22032/67. Heading E1T. A fixed roof structure for a cylindrical storage tank comprises a compression ring 20 mounted on the wall 16 of the tank, a central column 18 extending vertically above the level of the ring and flexible roof sheeting extending from said column to the ring in a curvature to shed storm water therefrom. The sheeting is formed from metal plates 29, 33 which are of decreasing thickness outwardly from the column 18 and are welded together and to the members 18, 20. In a method of erecting such a tank the central column is first positioned by guys having turnbuckle adjustment means and the crown of the column is secured to the ring by radially-disposed, flexible tension rods or cables for supporting the roof plates prior to welding, the tension rods being then removed. For details of central column, floating roof, reinforcements and minor details of erection the specification and remaining drawings (not shown), should be referred to.
Patent GB-220643-A (GB)
Abstract: 220,643. Shipley, B. M. Dec. 21, 1922, [Convention date]. Voucher-issuing.-In apparatus of the type described in Specifications 8119/15 and 210,713 the voucher-strip is advanced by a feeding means which is normally limited as to its extent of movement provision being made for disabling the limiting means. The voucher-strip 550 is fed by rollers 580, 581, Fig. 2, from a supply roll through a shoot 579 and past a severing plate 582, the tension on the paper being maintained by a spring-controlled arm 585. Rotation of the feed roller 580 'is effected by ratchet mechanism 587, 588 and a pinion 594, Fig. 3, operated by a toothed lever 595 having a stud 596 engaged by the long arm of a bell-crank lever 570 and connected, through a link 597, to a spring-controlled plate 599. Movement of the feed roller for the line spacing of the items is limited by means of a pin 605 on the toothed lever 595 co-operating with a stop member 606, Fig. 3, adapted to be removed out of the path of the pin 605 to allow a full movement of the lever 595 so as to feed the voucher-strip, after the total has been printed, to the severing position. The stop member 606 is loosely mounted on a sleeve 614 and has a projecting pin 616 engaging spring-connected arms 617, 618 adapted to be operated by a pin 620 on a lever 621 secured to the sleeve 614. This sleeve carries a slotted arm 622, Fig. 6, engaged by a roller on a link 463 pivoted on an arm 465 on a shaft 438. As described in Specification 218,688, the shaft 438 is rocked, when the total-taking lever is operated, to allow the main shaft to perform the necessary two cycles of operation for printing totals. During the first cycle the sleeve moves clockwise so as to cause the lug 627 of the stop member to engage the pin 605 and the spring 619 to be tensioned until the toothed lever 595 moves counterclockwise whereupon the stop member is released and the spring moves it out of the path of the pin 605 to permit of a full movement during the second cycle. The lower feed roller 581 is supported by a frame having an extension 633 by means of which the roller may be manually removed to stop the feed when no voucher is to be issued. The roller 581 is retained in its disengaged position by a latch 640 releasable by the operator.
Patent GB-835210-A (GB)
Title: Improvements in or relating to electrical generator regulating sí¡í¡ems, especially for mechanically propelled vehicles
IPC: H02J7/24
Filed: 1957-07-12
Abstract: 835,210. Automatic voltage control systems. BOSCH G.m.b.H., R. July 12, 1957 [July 14, 1956], No. 22091/57. Class 38 (4). The output voltage of a self-excited D.C. generator is controlled by a transistor in series with the field winding, and the transistor is controlled by a voltage-sensitive transistor oscillator. A transistor 110 is connected in series with the field winding F across the armature G and the base bias is derived by rectifying the output of a mono-stable blocking oscillator consisting of a second transistor 120 and a transformer 121. The emitter of transistor 120 is biased negatively by a battery H with respect to the base so that the transistor 120 only conducts when the generator voltage exceeds a set value. When transistor 120 starts to conduct, one cycle of oscillation occurs. The resulting voltage pulse across transformer 121 is rectified at 128, 129 to charge capacitor 135 so as to eventually bias transistor 110 to cut-off and so reduce the generator voltage. Capacitor 135 discharges through resistor 111 to enable the cycle to continue. Load current limiting is effected by causing the load current to heat a temperaturevariable resistor 127 in the base bias circuit of the transistor 120. Surge limiting is effected by a rectifier 136 across the field winding. In a modification, Fig. 2 (not shown), the battery H is replaced by either two rectifiers in series so as to form the non-linear element in a voltagesensitive bridge, or by a Zener diode; and load current limiting is effected by including a resistor carrying the load current in the emitter/base circuit of the transistor 120.
Patent GB-1504977-A (GB)
Title: Hydrophobising finely divided silica and silicates
IPC: C08K3/34
Filed: 1975-05-22
Abstract: 1504977 Hydrophobic silica DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 22 May 1975 [25 July 1974] 22182/75 Heading C1A A finely-divided hydrophobic silica or silicate is made by a process which comprises precipitating an alkali metal silicate solution with a mineral acid or a metal salt solution, followed by addition of a prepolycondensed (mixture of) organo halogen silane(s) to the suspension, filtering off the product, washing and drying it and subjecting it to a heat treatment at 300-400 C. A pre-polycondensed mixture of dimethyl dichlorosilane and methyl trichlorosilane is preferably added to the suspension at a temperature of 50-90 C.
Patent GB-329898-A (GB)
Title: Improvements relating to taps or cocks
IPC: F16K3/06
Filed: 1929-07-19
Abstract: 329,898. Best & Lloyd, Ltd., and Dodsworth, H. July 19, 1929. Oscillating disc valves; sliding valves.-An improved petrol &c. tap or cock comprises a body portion made from two parts a, beach containing a cork or like seating member c, the parts being disposed on opposite sides of a ported flat movable member h and secured together by screws, overlapping parts, or other convenient means. The movable valve member h slides or oscillates between the cork &c. seatings which may be pressed together by springs d acting through metal washers e. When the slide is adapted to oscillate, one end is notched, as at j, to form a kind of loose pivotal connection to the body part, as shown.
Patent GB-405965-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03D7/18
Filed: 1932-08-08
Abstract: 405,965. Valve circuits for wireless reception. GIORGI, V. DE, 6, Via Lucio Bazzani, Turin, Italy. Aug. 8, 1932, No. 22229. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 9, 1932.] [Class 40 (v).] A superheterodyne receiver uses two successive frequency-changing stages V1, V3, and the first intermediate-frequency amplifier operates at a frequency at least as high as the mid-point of the range of frequencies to be received. Circuits with fixed tuning are used in the first intermediate-frequency amplifier V2 and in the input and oscillator circuit of the second frequency-changing stage. The aerial circuit A is aperiodic, and the only tuning control C adjusts the frequency of the first oscillator. The coupling circuits consist of band-pass filters, and the frequency-changing stages comprise two-grid valves.
Patent GB-222854-A (GB)
Title: Improvements in wood-sawing machines
IPC: B27B29/10
Filed: 1924-09-22
Abstract: 222,854. Soc. Anon. Marqcol. Oct. 6, 1923, [Convention date]. Sawing.-In a log-sawing or like machine the log is mounted on its carriage in such a manner as to move freely by its inertia at the beginning of each stroke into contact with a fence l, which is adjusted exactly by means of a hand wheel m. The log is held by hooks e, f mounted on a plate c carried by links b which are mounted by ball bearings on the travelling carriage a. The links b can be locked by means of clamps g and arms g<2> connected to a cable h and actuated by depressing a jockey pulley h<4>. When the forward stroke commences, the clamps g are released, so that the log swings against the fence l. The clamps are then tightened, and the cut taken. On he commencement of the return stroke the clamps are released again, so that the log swings clear of the saw. Fig. 6 shows the clamp for the hooks. The lower hook f is moved by a screw q', the upper hook e slides in an undercut guide and is locked by a clamp p
Patent GB-1307779-A (GB)
Title: Screening machine
Inventor: KRAUSE R
IPC: B07B1/36
Filed: 1971-04-19
Abstract: 1307779 Screening machines "RHEWUM" RHEINISCHE WERKZEUG - UND MASCHINENFABRIK GmbH 19 April 1971 [24 Feb 1970 (2) 7 Aug 1970] 22322/71 Heading B2H A screening machine comprises a screen 1 clamped at edges thereof to a frame 2, shafts 4 located beneath the screen and adapted to swing in constantly changing directions, and impact levers 5 coupled to the shafts and adapted to make contact with the screen surface. As shown in Figs. 1 and 2, each shaft 4 has eccentric pins 10 at its ends which are mounted on the frame 2 by resilient torsion springs. Each spring consist of a metal sleeve mounted on the pin 10 and arranged concentrically in a ring of rubber or elastic synthetic material which is itself received in a larger metal sleeve mounted on the frame. The levers 5 having convex heads 6 are actuated by rocking the shafts 4 by means of electromagnetic drives 7 whose rams 8 reciprocate and are pivoted on levers 9 extending from the shafts 4. Two or more shafts may be coupled together and each group is driven from a common drive or all shafts are driven from a common drive. In another arrangement, the shafts are coupled by way of cranks to motors having rotating driving shafts. In a further arrangement the shafts are provided with flywheel drives. The impact levers may act on the screen with different frequencies and they may have different amplitudes.  In the machine shown in Figs. 5 and 6, the end portions of the levers 5 on each shaft 4 are bridged by a common bar 6 which carries one or, as shown, a number of spaced elastic coverings 12 made of an abrasion-resistant material, e.g. polyurethane. The levers may be made resilient by forming them of flexible material, e.g. rubber, or they may be resiliently mounted on the shaft.
Patent GB-1087928-A (GB)
Title: Bag filling machine
IPC: B65B1/18
Filed: 1966-05-19
Abstract: 1,087,928. Packaging - machines. NATRONZELLSTOFF - UND PAPIERFABRIKEN. May 19, 1966 [May 20, 1965], No. 22335/66. Addition to 1,081,396. Heading B8C. The valve-bag filling machine described in Specification 1,081,396 is modified by the provision of an outlet (41) at the lowest point of the fluidizing chamber (8). The invention is shown applied to a modified form of the embodiment of Fig. 2 of the parent Specification, the fluidizing plate for discharge of filling material residues being an inverted frustum of a cone having joined to the aperture formed by its lower end the outlet (41). The outlet has a closure valve (42). The closure valve may be coupled to the controls for the feed screw (3) and the air blower, i.e. to shut them off when the closure valve is opened. Air flow induction discharge means (50), (51), Fig. 1 (not shown), facilitate removal of the residue.
Patent GB-1178995-A (GB)
Title: Method of producing and covering shaped articles of compressed fibrous materials
Inventor: MUNK EDMUND
IPC: B27N5/00
Filed: 1967-05-15
Abstract: 1,178,995. Laminates. FORMWOOD Ltd. 15 May, 1967, No. 22349/67. Heading B5N. In a method of producing a moulded article having a flat, angled, or curved edge from a mixture of comminuted organic fibrous material, e.g. wood chips, and a heat-setting binder or from a pre-pressing formed from said mixture and providing a covering layer on said article, the mixture or pre-pressing 3 is compressed in a heated two-part mould 1, 2 together with the covering layer 4, 5, and a groove extending parallel and close to said edge is pressed into the covered article by means of a projection 6 on one part of the mould, the groove being so shaped and located relative to said edge as to substantially prevent any shrinkage of the article relative to the covering layer and to produce the back pressure necessary for securing the covering layer to the edge. The groove may be interrupted and may be in one or both faces of the article. In one method wood chips and the heat-setting binder are poured into a cold or pre-heated mould and compressed into a pre-pressing which may include a partdepth groove. The pre-pressing is then covered with the material 4, 5 and hot moulded to give the finished article.
Patent GB-224495-A (GB)
Abstract: 224,495. Wanderer - Werke vorm. Winklhofer & Jaenicke Akt.-Ges. Nov. 8, 1923, [Convention date]. Spring power-storing mechanism. - In a typewriter combined with calculating-machine which is adapted to be driven by a spring motor, the spring is rewound automatically by an electric motor 5 which is coupled to the winding mechanism by the insertion and fixing in bayonet slots in the case 1. The springs are rewound by the worm and worm wheel 11, 12, gearing 13, 14 and sleeve 15 to which the first spring is secured. The sleeve 18b connected to the case of the first spring is connected also to the second spring the outer casing of which drives the wheel 22 which is connected by gearing ani an intermediate shaft 25 to the shaft 28 resiliently coupled at 74 to the calculating machine. To establish the motor circuit a rotary switch 39, Fig. 11, is driven by a spring 38 which is rewound by the main driving wheel 14, pinion 32, worm gear 33, 34 and pinion 36. A slipping device consisting of a rounded stud engagement with the spring case prevents over-winding of the spring. The shaft 35 terminates in a slotted head 40 which forms an escapement for the teeth 54 of the switch. A second slotted escapement shaft 43 is driven by the unwinding pinion 22 through the pinion 23, worm and worm wheel 24, 41. The rotation of the shaft 43 by working the calculating machine releases the switch which is stopped by the motor-driven escapement shaft 40 in such a position that a switch blade 55 enters between the contacts 48, Fig. 3<c>, and completes the circuit. The rotation of the shaft 40 subsequently releases the switch and the circuit is broken until made again by the escapement 43. To indicate failure of the rewinding arrangements and prevent running down of the driving spring a pawl 46 enters a groove 56 in the spring casing and locks it, an alarm disc 45 showing through the opening 3 when this happens. In normal working the pawl 46 is withdrawn by a second pawl 47 connected to the first by spring and actuated by pins 52<a> on the spring casing of the rotary switch. The pins 52a are so placed that the pawl 47 is lifted when the motor is placed in circuit. Contact pins on the motor contact with the circuit closing springs on the case when the motor is connected, as described, to the winding mechanism.