baber/WOPTO huggingface dataset:
Patent GB-829762-A (GB)
Title: Actuating mechanism for stitch severing devices
IPC: D06H3/16
Filed: 1956-09-20
Abstract: 829,762. Inspecting hosiery. ALAMANCE INDUSTRIES Inc. Sept. 20, 1956 [July 19, 1956], No. 28738/56. Class 42 (2). A machine for inspecting full-fashioned hosiery comprises a form 11 on which the stockings are inspected, a device 45 for severing stitching connecting adjacent stockings and a mechanism operated by rotation of the form to bring the device 45 into and out of severing engagement with the stitching. The device is connected by an arm 46 to a shaft 35 oscillated by a spring-loaded linkage 31, 34 and a lever 22 pivoted at 24 by a cam 20 secured to the form by set screws 21. Clippers or a blade may be used as the severing device, but an electrically heated element 50, which seals the nylon thread, is preferred. The element is mounted in an insulated guard 51. The stocking awaiting inspection is held in a tubular guide 17 by a pivoted U-shaped weight 19. Specification 829,761 is referred to.
Patent GB-440677-A (GB)
Title: Improvements in means for locking and adjusting sliding windows and other panels
IPC: E05F11/00
Filed: 1934-10-09
Abstract: 440,677. Sliding-window holders &c. SLEIGH, H. L., CHESTON, A. S., and STUART, F. J., Widney Works, Bagot Street, Birmingham. Oct. 9, 1934, No. 28849. [Class 44] [See also Group X] In a vertically sliding window operated by a handle, which may also control pawl or other positive holding devices, operation of the handle to depress the window actuates means for applying braking action during downward movement of the window. Operation of the handle to raise the window may lessen braking action or render it inoperative. As shown, a plate spring 15 carried by the sliding window has a portion 15<a> bearing against the front inner face of the guide channel and a depending portion 15b normally clear of a rack member 10 mounted on the rear inner face of the channel. Part 15b is of greater depth than the width of the slots 11 in the rack member so that when moved into contact with said member it bridges the slots during upward movement of the window, to prevent noise in operation. The window also carries a plate spring 14 with a hooked end 16 normally engaging the lower edge of a slot 11 to hold the window, and with an off-set upstanding attachment 17. A similar arrangement is provided in the opposite guide channel. The top edge of the window carries a shaft 4 which is rocked by the operating handle, not shown, and has terminal arms 6 with cranked ends 7 located between the parts 15b, 17. When the operating handle is depressed, part 7 is moved to the left, withdrawing hook 16 and causing member 17 to bear against the part 15<a>, spring reaction causing the window to be pressed against the rear inner face of the guide channel to give braking action. When the handle is raised, part 7 moves to the right, causing part 15<b> to bear against the rack 10, and rocking the window bodily away from the rear face of the channel to release hook 16 and minimize friction during upward movement of the window. Parts 14, 15, 16 may be integrally formed as in Fig. 7.
Patent GB-288784-A (GB)
Abstract: 288,784. Hickisson, A. M. Feb. 26, 1927. Stencils.-A stencil for marking material, such as linen and other fabrics, is cut out of flexible material, such as waterproof paper, coated on one side with an adhesive, so that the stencil may be temporarily stuck on to the fabric while the marking ink is being applied. To facilitate its removal from the fabric, one or both ends of the stencil may be left free from adhesive. Also, the paper may be in the form of a perforated roll, so that any required number of stencilled lengths may be torn off for use; alternatively, the lengths may be divided by ungummed transverse bands.
Patent GB-305114-A (GB)
Title: Improvements in milk bottles and like receptacles
IPC: B65D1/02
Filed: 1927-10-29
Abstract: 305,114. Richter, K. Oct. 29, 1927. Drawings to Specification. Stoneware bottles.-Bottles and like receptacles for milk or food are made of wholly or partially glazed aluminium silicates. The receptacles, which can be sterilized by heating at 500‹ C., are stated to be permeable to air, and to cool the contents by allowing evaporation. Specifications 7056/85, 19850/89, 27431/12; 163,578 and 253,438, [both in Class 29, Cooling &c.], are referred to.
Patent GB-749667-A (GB)
Title: Improvements in means for guiding a magnetic tape
IPC: G06K13/28
Filed: 1954-10-08
Abstract: 749,667. Magnetic recording and reproducing apparatus. STANDARD TELEPHONES & CABLES, Ltd. Oct. 8. 1954 [Oct. 15, 1953] No. 29050/54. Class 40(2) [Also in Group XIX] Means for guiding a magnetic tape 3 from, and back to, a storage box 2, includes a pneumatic device 10 for producing a first air pressure to press the tape 3 against magnetic heads 8, and a second air pressure for introduction into the box 2 to keep the two parts of the tape separated to counteract the effect of static charges tending to hold the two parts of the tape together. Air from a point 13 is fed into the device 10 from which vent holes 19 from an adjustable valve 18 direct jets of air against the tape and press it against heads 8. Similar vent holes F2, F3 and F4 from a valve 20 direct jets of air into the box 2 to hold the two parts of the tape separated, the air eventually making is way out through vents 17.
Patent GB-806528-A (GB)
Title: Improvements in or relating to electric discharge tubes comprising a getter
IPC: H01J7/18
Filed: 1955-10-12
Abstract: 806,528. Thermionic cathode contructions. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 12, 1955 [Oct. 15, 1954], No. 29073/55. Class 39(1). An electric discharge tube has one or more getters 14, 15, comprising preferably tungsten helices having helically wound on them wires of one or more of the metals zirconium tantalum, hafnium, nio bium, (columbium), tit anium and thorium, and a cathode consisting of a number of parallel thoria ted tungsten cathode wires 1-6 arranged on ar imaginary cylindrical sur face, each welded to the flattened end of a supply wire 8-13 respectively at one end thereof and con nected together at their other ends 7, the arrange ment being such that during operation the getter 14 is connected between two cathode wires 1 and 2, not connected in parallel, near the supply wires 8 and 9 so that the ends of the two cathode wires near the supply wires are traversed not only by the heating current of the cathode wires but also by the heating current of the getter. Further getters similar to the getter 14 can be arranged between the cathode wires 3 and 4 and cathode wires 5 and 6. A getter 15 can be arranged between two cathode wires 1 and 5 connected in parallel during operation of the tube. When the tube is bieng evacuated and the cathode degassed the cathode wires 1, 2 and 3 are connected in parallel as are also the cathode wires 4, 5 and 6 so that the getter 14 remains cold and does not absorb gases such as oxygen and nitrogen, whilst the getter 15 can attain a temperature at which all gases are driven off. After sealing of the tube the cathode wires 1, 3 and 5 are connected in parallel as are also the cathode wires 2, 4 and 6 so that the getter 14 can attain a temperature such that oxygen and nitrogen are readliy absorbed, whilst the getter 15 is substantially not heated and can only absorb hydrogen.
Patent GB-434246-A (GB)
Title: Improvements in or relating to pressing or treatment rollers
IPC: D06C15/08
Filed: 1934-10-11
Abstract: 434,246. Collapsable rollers. SCHUSTER, F., 39, Furtherstrasse, Chemnitz, Germany. Oct. 11, 1934, No. 29118. Convention date, Nov. 25, 1933. [Class 100 (i)] [See also Group VIII] A roller with a removable covering 5 has its core in thin sections 2 which are radially adjustable by means of wedges 4 on the sections and corresponding wedges 7 slidable on the shaft 1, the wedges 4 being in segmental form and secured to the ends of the sections 2. The wedges 7 can be adjusted by nuts 8 or by rams 18 working in a pressure cylinder 19. Projections 11 on the wedges 4 and flanged discs 9 prevent the displacement of the sections when the covering is removed.
Patent GB-229012-A (GB)
Title: Improvements in the ventilation of vehicle bodies
IPC: B60H1/00
Filed: 1923-11-19
Abstract: 229,012. Riley, A., and Riley, S. Nov. 19, 1923. Air, heating and cooling; forced ventilation; ventilating vehicles.-The interior of a motor vehicle body is ventilated by admitting controlled supplies of hot and cold air to a mixing chamber in front of the instrument board from which air of the required temperature enters the body. In one construction, Fig. 1, the fan A behind the radiator B is enclosed in a compartment C, which communicates by means of a conduit D, which may pass round the exhaust pipe, with a mixing chamber J behind the dashboard Z. The cold air is admitted at E<2> to a chamber E preferably provided with a blower G and communicating by way of a conduit F with the chamber J. Each conduit D, F is provided with a valve G<2> preferably operable from the dashboard or instrument hoard Y. In a modification, the compartment C, Fig. 3, and-cold-air passage E<3> communicate with a mixing chamber K formed by providing a partition K<2> across the bonnet, a double flap-valve L controlling the admission of either hot or cold air. The compartment C also has lateral outlets C<3> provided with shutters which may be interconnected with the valve L. In a further modification, the hot air passes through the upper part only of the radiator B, Fig. 4, and enters the mixing chamber K at N controlled by a flap valve 0, a second flap valve P being provided to prevent the hot air passing over the engine when not so required. The cold air in this construction enters at the aperture M controlled by the valve R.
Patent GB-1427910-A (GB)
Title: Method of preparing a methacrylic acid ester
IPC: C07C51/235
Filed: 1974-07-02
Abstract: 1427910 Methacrylic acid esters INSTYTUT CIEZKIEJ SYNTEZY ORGANICZNEJ BLACHOWNIA 2 July 1974 [12 July 1973] 29203/74 Heading C2C Methacrylic acid esters are prepared by oxidizing isobutyraldehyde with oxygen or an oxygen-containing gas, esterifying the resulting acid with an alcohol, oxidizing the isobutyric acid ester with oxygen or an oxygen-containing gas to form a hydroxy derivative of the ester and dehydrating to the methacrylate. The reaction may be continuous in the liquid phase and an aliphatic alcohol (1-4C) may be used. A catalyst such as cobalt, manganese, copper or nickel acetates, butyrates and naphthenates with or without promotors may be used for the oxidation stage, and the dehydration may be in the presence of a sulphonated cation exchanger.
Patent GB-520083-A (GB)
Title: A device for reducing disturbance in fluid flows
IPC: F22D11/00
Filed: 1938-10-08
Abstract: 520083. Regulating fluid flow. KENT, Ltd., G. and DALL, H. E. Oct. 8, 1938, No. 29225. [Class 135] A device for preventing swirling in the flow of a fluid before it enters a meter consists of two apertured plates 7, 8 spaced apart, one plate 7 having holes which are long compared with their diameter, and the other plate 8 having holes which are preferably short compared with their diameter. The holes in the plate 8 are staggered in relation to those in the plate 7.
Patent GB-774424-A (GB)
Title: Electrodeposition of copper
IPC: C25D3/38
Filed: 1954-10-11
Abstract: 774,424. Electrodeposition of copper. METAL & THERMIT CORPORATION. Oct. 11, 1954 [Oct. 14, 1953], No. 29285/54. Class 41. An aqueous pyrophosphate copper electroplating bath is characterized by the addition thereto of 2-mercaptobenzimidazole or its substituted- or unsubstituted-alkyl or -amino derivatives. Preferably the bath contains per litre 7.5 to 45 grams of bivalent copper, pyrophosphate in an amount ranging from that necessary to convert the copper to the complex radical Cu(P 2 O 7 ) 2 <SP>6E</SP> to that which saturates the solution, 5 to 20 grams of nitrate radical, 1 to 3 grams of ammonia, and 0.0005 to 0.5 gram of 2-mercaptobenzimidazole or its substituted or unsubstituted amino derivatives, together with 15 to 30 grams of oxalate radical, either as the acid or its alkali metal or ammonium salt, and plating is effected with a cathode current density of 2 to 75 amps/sq. ft. with the bath at 70‹ to 160‹ F. and pH 7.5 to 9.5. The copper may be added as copper pyrophosphate, sulphate, or acetate; the pyrophosphate may be added as any of the sodium or potassium salts; the nitric may be added as nitric acid or sodium or potassium nitrate ; and the ammonia may be supplied as a gas or in aqueous solution. Suitable derivatives of 2-mercaptobenzimidazole are those having one or more groups such as 4- butyl, 4- or 5-amino, substituted amino radicals such as sulphanilamido p-toluene sulphanilamido and acylamido in which the acyl group has up to 10 carbon atoms, and alkylol and carboxyalkyl radicals having up to 6 carbon atoms, e.g. 6-sulphanilamido, 5-propionamido, 4-amino 7-acetamido, N: N-dihydroxymethyl,  5 - carboxymethyl. Instead of the oxalate radical, 5 to 15 grams of citrate, 5 to 20 grams of tartrate, or carbonate radicals may be used. Thick level platings, e.g. more than “ inch thick, may be produced. Specifications 509,650 and 597,407 are referred to.
Patent GB-909028-A (GB)
Title: Improvements in or relating to transistor circuit arrangements for supplying a current of a given value and reversible polarity
IPC: F04D29/44
Filed: 1961-08-15
Abstract: 909,028. Electric selective signalling systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 15, 1961 [Aug. 18, 1960], No. 29415/61. Class 40 (1). [Also in Group XL (c)] In a circuit for a digital voltmeter in which equal and opposite voltages are connectible to a comparison circuit by rendering one or other of two oppositely conductive type transistors conductive, the output current may be reduced to zero by making both transistors conductive. In the digital voltmeter shown the left- and right-hand resistors 4<SP>1</SP> respectively connect the unknown and known voltages to a meter connected to the junction of the resistors. The known voltage is obtained by adding in a ladder attenuating network 2, 3, 4 a selectable combination equal currents I, II, (n-I) ... n of reversible polarity supplied by similar circuits of which one, comprising transistors 7, 8 of complementary type, is shown. The attenuating network is such that the output currents at 4<SP>1</SP> from the respective inputs I, II ... n have a value 2<SP>n-1</SP> times the input current so that a desired value of comparison current may be built up. When a bi-stable circuit 21 is in one state, the lower electrode of a diode 19 is earthed so that transistor 7 is conducting and a battery 5 supplies the current I, whereas when the bi-stable circuit is in the opposite condition transistor 7 is rendered non-conducting and the output at 23 renders the transistor 22 conducting and thus transistor 8 conducting so that battery 6 supplies an equal but opposite current I. The transistors are each of the symmetrical type and when they are conducting are saturated to an extent such that emitter and collector currents are equal. To reduce the current I to zero, a bi-stable circuit 30 is operated to render a transistor 27 conducting. This connects the bases of transistors 7, 8 together and a common base current flows sufficient to so saturate the transistors that emitter and collector currents of each transistor are equal. Thus collector currents of the two transistors are equal and opposite and the current I is zero. The bi-stable circuit 21 and transistor 20 may operate the current generators in the other stages II ... n.
Patent GB-1214790-A (GB)
Title: An annealing hood
IPC: C21D9/00
Filed: 1969-06-11
Abstract: 1,214,790. Annealing hood. NYBY BRUKS AB. June 11, 1969 [Nov.15, 1968], No.29565/69. Heading C7N. A cylindrical steel annealing hood comprises a shell 1 which in a section taken across the axis of the hood has a corrugated contour, and which is reinforced by a plurality of axially spaced girth rings 2, the top of said shell being closed by a welded cover 10, whereas the bottom end abuts a welded flange ring extending radially across the entire width occupied by the corrugations of the shell and which has a collar downwardly extending the annealing hood, and is characterized in that the reinforcing girth rings 2 are secured only against axial displacement but not against circumferential displacement and that the peripheral margin of the cover 10 is provided with recesses or openings of which the edges nearest the centre of the cover are adjacent the surface of the valleys on the outside of the corrugations of the shell. The girth rings may be secured to the shell by brackets attached thereto so as to give a U-shaped loop wider than the ring, through which the ring passes, and the recesses or openings in cover 10 are provided either by drilling holes therethrough or by shaping 10 to follow the corrugated edge of the cylinder.
Patent GB-709031-A (GB)
Title: Mining machine
IPC: H03G7/00
Filed: 1951-12-18
Abstract: 709,031. Mining machines. JOY MANUFACTURING CO. Dec. 18, 1951 [Dec. 18, 1950], No. 29577/51. Class 68(1) In a mining machine, the vein attacking and disintegrating means are moved automatically through a cycle of operations, and either of the hydraulic motors for elevating or advancing the said means at. the completion of each operation of the cycle operates a limit switch of a control circuit to cause the control circuit to move responsive means suitably to position a selector valve to supply fluid under pressure to the appropriate hydraulic motor for carrying out the next operation of the cycle. In one embodiment the elevating' and sumping jacks 18, 16 at the end of each stroke engage one of the limit switches 64-72, switches 64-70 being connected by a closed circuit to a slave cylinder 82. Movement of one of the switches 64-70 causes movement of the piston in the slave cylinder 82 so as to connect a pressure fluid source to a motor 102 that rotates a rotary selector valve 42 through a quarter turn by a rack and pinion 134, 138 to redistribute the supply of pressure fluid to the cylinders 18, 16 to permit of the next operation. Initiation of this operation permits the release of one of the limit switches, thus allowing the return of the piston of the slave cylinder, the reversal of the supply of pressure fluid to the motor 102 and return of the rack, the valve remaining stationary through a free wheel mechanism provided between the pinion and the valve spindle. The closing of limit switch 72 operates, through a slave cylinder 212, a piston cylinder control unit to operate the lateral swinging cylinders 20. To stop operation of cylinders 20, the supply of pressure fluid is cut off after a given time on the engagement of a cam surface with a pivoted cam mounted on the spring loaded piston of the piston and cylinder control unit 244, 268. The hydraulic control circuit can be replaced by analagous electrical circuits of which four are described. Specifications 681,364 and 681,365 are referred to.
Patent GB-286185-A (GB)
Title: Improvements in or relating to telephone head-piece receivers
IPC: H04R1/10
Filed: 1927-11-04
Abstract: 286,185. General Acoustics, Ltd., (Dictograph Products Corporation). Nov. 4, 1927. Head-sets.-A head-band 4 is connected to a telephone receiver 2 by means of a flat arcuate spring member 6, which is connected to the band by a swivel joint 5 and is adapted to engage in a groove 3 in the rim 1 of the receiver. The member 5. which is preferably formed from a metal blank of the shape shown in Fig. 8, has the back plate 7 secured tc the band 4 by a pin 8 passing through the hole 9, a pivot pin 11 on the spring member 6 being passed through holes 12 in the parallel spaced long and short lugs 15, 14. The tongues 17, Fig. 8, are bent round the edges of the band 4. the semi-circular cut-away portions 18 coming together to grip the pin 8. Clearance spaces 19 are left between the tongues 17 and band 4, as shown in Fig. 7, so as to allow of limited angular movement of the receiver in its own plane.
Patent GB-1066358-A (GB)
Title: Improvements in and relating to the reproduction of images by heat
Inventor: GOLD ROBERT MURRAY
IPC: B41M5/36
Filed: 1964-07-22
Abstract: 1,66,358. Heat images. KEUFFEL & ESSER CO. July 22, 1964, No.29609/64. Heading G2C. Images are produced by exposing a layer of a polymer to a heat image to form a persistent, invisible, imagewise change in inherent properties of the polymer, and then developing the image by a treatment having a differential effect on the original and transformed polymer. Suitable polymers, which may contain a pigment (e.g. a metal oxide) or a filler (e. g. talc or clay), are vinyl, styrene, polyester, polyacrylic and polyamide resins. The heat image may be applied by heated type, or by infrared irradiation of the layer which is either in contact with an original or has markings on its surface (e. g. pencil markings) which absorb heat. The latent image may be developed by using the different solubility, resistance to mechanical abrasion, or wettability (e.g. to solutions of dyes or dye precursors) of the original and transformed polymer. The layer may have a coloured support.
Patent GB-264965-A (GB)
Title: Improvements in or relating to aircraft with rotative wings
IPC: B64C27/02
Filed: 1925-11-24
Abstract: 264,965. La Cierva, J. de. Nov. 24, 1925. Screw and like propellers.- The wings of a freely-rotative wing-system for aircraft are constructed with a varying chord which reaches its maximum in the outer half of the wing's length, preferably at a point between one-half and three-quarters of the total wing length from the root, and with a varying incidence increasing to a maximum at, or in the neighbourhood of, the tip. After reaching its maximum, the chord may decrease towards the tip as shown in Figs. 1 to 3, or it may continue uniform to the tip as shown in Fig. 4, or it may continue constant for a substantial length and then decrease as shown in Fig. 5. The cord may be gradually diminished towards the root to such an extent that that part becomes a supporting spar, which is preferably biconvex in section. The greater portion of the effective wing surface is in rear of this spar with regard to the direction of rotation. The incidence of the wing is at a maximum near the tip decreasing to a point in the outer half of the total wing length, from which point it remains constant to the root as shown in Fig. 4. For small wing- systems, the longitudinal edge profile is straight, but for large systems it is worked upwardly and comprises two or mure straight portions joined by arcuate sections Z, Fig. 8. In the latter case the tip may be loaded to maintain a desired value of centrifugal force. The first Provisional Specification describes a modification in which the wing is lozenge-shaped in plan with the maximum chord midway of its length, and a modification in which the thickness of the longitudinal edge profile is at a maximum at a point one-third of its length from the root and progressively decreases on either side of this point. A modifition is also referred to in this Provisional Specification, in which the incidence is at a maximum at the tip and decreases to a point about onethird from the root, from which point it increases or remains constant. Specification 196,594 is referred to in the first Provisional Specification.