baber/WOPTO huggingface dataset:
Patent GB-700645-A (GB)
Title: Improvements in the spring suspension of seats of chairs, stools and the like
IPC: A47C9/00
Filed: 1951-09-05
Abstract: 700,645. Seats. POULTNEY, S. V. Aug. 26, 1952 [Sept. 5, 1951], No. 20960/51. Classes 52(1) and 52(2) A stool comprises a seat unit, a central column to which a flange or other spring attachment means is rigidly secured, frame members having lug or other spring: attachment means, and radial tension springs secured at their ends to the attachment means on the column and on the frame members. As shown, an adjustable seat 3 is supported for vertical and lateral displacement by a column 10 and tension springs 13, 15 extending between flanges 11, 12 on the column and lugs 14, 15a mounted on frame members or legs 7 which are inturned and secured to a collar 5b limiting the lateral movement of the column. In modifications having straight legs, an upper bracing ring replacing the collar,. a back support is provided, or the legs are secured to the seat and the column is a rigid structure mounted on a short leg. In a further modification the lower set of tension springs is replaced by a vertical coil spring housed in a cylinder mounted in a spider from the legs, or is dispensed with, the column having a ball and cup bearing on the spider. In vehicle seating lateral movement is prevented, by providing a collar in which the column is a sliding fit, on a spider or bracing from the legs.
Patent GB-581067-A (GB)
Title: Improvements in and relating to means for transmitting indications to a distance
IPC: G08C19/02
Filed: 1944-10-27
Abstract: 581,067. Electric indicating systems. HOLMES, E. L., HUGHES, A. J., and HUGHES & SON, Ltd., H. Oct. 27, 1.944, No. 20982. [Class 40 (i)] In a remote indicating system, the controlling element operates one selsyn transmitter through multiplying gearing, the corresponding receiver rotating a dial through reducing gearing, and operates a second selsyn transmitter directly the second receiver rotating a second dial to show whether the reading of the first dial is correct, since the first transmitter and receiver may be out of step. by one or more complete revolutions. As shown in Fig. 1, the moving element a drives the rotor of a selsyn transmitter f through multiplying gearing having a velocity ratio, say twelve to one, and the receiver g drives the dial m through gearing having a ratio one to twelve. Since the dial m has twelve positions of coincidence for each position of element a, the direct transmitter p and receiver q operating a dial s concentric with dial m are provided, the correct reading being given when the indices u and t coincide. The. dial may be rnanually adjusted in thirty degree steps by knob v, Fig. 2, which drives gear-wheel x through pinion w, the movement of the knob being limited to steps of sixty degrees by spring-pressed means. An interrupted gear-wheel y, having six spaced groups of teeth is mounted on wheel x, so that the gear-wheel l carrying dial m is temporarily engaged by a group of teeth and turned through thirty degrees when the knob v is turned one step, there being no interaction normally between the wheel l and a group of teeth.
Patent GB-600793-A (GB)
Title: Steam generator
IPC: F22B21/24
Filed: 1945-08-17
Abstract: 600,793. Water-tube steam boilers. NORDLUND, K. F. Aug. 17, 1945, No. 20986. [Class 123(ii)] In a boiler comprising parallel - coupled water tubes 5, preferably coiled and of small internal diameter, which extend from a lower waterinlet header 3, connected to an upper steam and water drum 1 by a downcomer 2, to a higher outlet header 6 connected to the drum 1 by a riser 7, the upper end of the header 3 is in direct or indirect communication with the steam space of said drum by one or more tubes 4 located externally of the boiler furnace to permit the escape of steam accumulated therewithin, and, preferably, the downcomer 2 is provided with a water-seal 9, choke nozzle or other steam-flow preventing device. The outlet header 6 may be dispensed with, in which case the tubes 5 are connected direct to the steam space of the drum 1.
Patent GB-318711-A (GB)
Title: Improvements in or relating to spring motors for gramophones and the like
IPC: G11B17/04
Filed: 1928-07-19
Abstract: 318,711. Potter, W. G., and Chesiiire, E. L. July 19, 1928. Spring power-storing mechanism.-A spring motor for a gramophone &c. is constructed so that the parts may be readily detached for removal or repair. The parts are housed in a cylindrical casing a which is carried by a base plate d adapted, to be secured to the board b. Upon removing the end cover f, the spring unit i may be drawn out, and upon removing the end cover e the sub-casing a<1> contaning the governing mechanism and part of the transmission gear may be drawn out. The central sleeve l of the spring unit has a polygonal bore adapted to receive the similarly shaped end of a shaft t carried by the other unit, and the spring housing j has pins o adapted to engage holes in a gear wheel m which meshes with a pinion p on the winding spindle. q. The transverse main shaft f<1>, which is driven from the shaft t by gearing v, w, d<1>, may be withdrawn from the casing a when the bush g<1> has been removed. The shaft f<1> is formed in two sections connected by a projection-and-slot joint n<1> having slight lateral play, and a spring o' which takes up shock on stopping the motor, and assists in overcoming the inertia of the turntable on starting. The governor q<1> on the cross-shaft co-operates with a brake pad which bears upon the disc t<1>. Two spring units may be provided.
Patent GB-1127806-A (GB)
Title: Bag
IPC: B65D30/18
Filed: 1966-05-12
Abstract: 1,127,806. Bags; packages. E. S. KARDON. 12 May, 1966 [17 May, 1965], No. 21010/66. Headings B8C and B8K. An insert 40 such as a packet of seeds is positioned between the rectangular diamond folded bottom of a bag and the portions 30, 28 which are adhesively secured to one another between their contiguous faces. The diamond fold is formed with a tab portion 22 forming part of the bottom fold portion 28, and with flaps 24 glued together to form a fin seal. The insert 40 is preferably retained in position by a glue deposit 33 prior to folding over the fold portions 28 and 30. The bag may be formed of an outer sheet of paper and an inner heat sealable lining.
Patent GB-209128-A (GB)
Title: Improved manufacture of liquid fuel
IPC: C10L1/02
Filed: 1922-08-01
Abstract: In the processes of Specifications 138,113 and 173,750 for the partial oxidation of mineral oils by passing the oil vapour in admixture with air through one or more heated catalytic screens, the lighter portion of the product is separated by distillation up to about 200 DEG  C. and the heavier portion, together if desired with fresh mineral oil, is then distilled in the presence of a basic oxide and its vapour resubjected to the partial oxidation treatment.  The apparatus employed is that described in Specification 173,750, except that a layer of a basic oxide, preferably an oxide such as magnesium oxide whose carbonate decomposes at a relatively low temperature, is provided at the bottom of the vaporizer.  The product comprises a mixture of low molecular-weight hydrocarbons, alcohols, aldehyde alcohols, aldehydes, ketones, ethers and aldehyde acids, which, after purification by distillation in the presence of dry caustic soda, may be used, together with the lighter portion previously separated, as a fuel for internal-combustion engines.  The residue from the distillation is substantially a soap.ALSO:In the process of Specification 173,750, [Class 1 (i), Chemical processes &c.], for the partial oxidation of mineral oils by passing the oil vapour in admixture with air through heated catalytic screens, the lighter portion of the product is separated by distillation up to about 200 DEG  C. and the heavier portion, together if desired with fresh mineral oil, is then distilled in the presence of a basic oxide and its vapour resubjected to the partial oxidation treatment.  The basic oxide is preferably one whose carbonate decomposes at a relatively low temperature, for example magnesium oxide, and a layer of it is placed in the vaporizer for the oil.  The product comprises a mixture of low molecular-weight hydrocarbons, alcohols, aldehyde alcohols, aldehydes, ketones, ethers, and aldehyde acids, which, after purification by distillation in the presence of dry caustic soda, may be used, together with the lighter portion previously separated, as a fuel for internal-combustion engines.  The residue from the distillation is substantially a soap.
Patent GB-405268-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1932-07-26
Abstract: 405,268. Knitting-machines. BENTLEY, P. A., GODDARD, J. H., DEANS, F. E., MANGER, C. F., a,nd WAINWRIGHT, C. H., Komet Works, New Bridge Street, Leicester. July 26, 1932, No. 21117. [Class 74 (ii).] A French welt is knitted upon a circular rib machine by knitting part or whole of one layer of the welt by needles of one bed while needles of the other bed do not knit, but merely hold their loops, and then knitting part or whole of the other layer by the second set of needles while the first needles idly hold their loops. The method permits the welt to be formed by one yarn only. In a superposed cylinder machine a pattern controlled bolt cam 20, 78 is provided in each cam system so that when one set of needles are knitting, the sliders of the other set can be deflected to an idle track 100, 104. Hooked sinkers as in Specification 321,210, [Class 74 (ii), Knitting &c.], may be provided to assist the rib needles in their loop-drawing operation during the formation of the inner layer of the welt, together with means for tensioning the work as in Specification 331,901, [Class 74 (ii) Knitting &c.]. Specifications 15008/00, [Class 74, Lace-making &c.], 24290/12, 171,483, [both in Class 74 (ii) Knitting &c.], and 400,623 also are referred to.
Patent GB-1273928-A (GB)
Title: Protective circuit for a field effect transistor
IPC: H03F3/347
Filed: 1971-04-19
Abstract: 1,273,928. IGFET circuits. NATIONAL CASH REGISTER CO. 19 April, 1971 [13 Feb., 1970], No. 21229/71. Heading H3T. A protective circuit for an enhancement type IGFET 16 having its source to drain path connected between a bias terminal 26 and a reference terminal 28, includes a depletion type IGFET 36, 38 having its source to drain path connected between the gate and source of the transistor 16 and the gate electrode of the depletion type transistor 36, 38 is connected to the bias terminal 26 so that application of the appropriate bias potential to the bias terminal 26 renders the enhancement transistor 16 operable and the depletion transistor 36, 38 non- conductive. With no bias potential or input signal applied to terminals 26, 30 a positive static electric source (indicated as 58) which may occur causes N channel depletion transistors 36 and 38 to conduct and protect the gate to source of the P channel enhancement transistor 16. Any negative static build up (indicated by 60) causes diode 56 to be forward biased so as to protect the transistor 16. When a bias voltage and a negative input signal are applied to terminals 26, 30 the depletion type transistors 36, 38 are non-conductive as is diode 56 so that they do not affect the operation of enhancement type transistor 16. Many transistors 16 may be included in the transistor array 12 and the circuit may be in integrated circuit form. The Specification indicates that it is known to protect the gate source path of a FET by means of a Zener diode.
Patent GB-473571-A (GB)
Title: Improvements in or relating to secondary emission electron multipliers
IPC: H01J43/18
Filed: 1936-07-31
Abstract: 473,571. Electron multipliers. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. July 31, 1936, No. 21233. [Class 39 (i)] Modulation of the output current, in a multistage electron multiplier of the type in which electrons are guided in a non- straight path between the secondary electron emitting targets, is effected by dividing one target into two or more parts having different coefficients of emission and moving the incident electron stream from one part to another. In one form the targets are arranged linearly in one plane with opposed accelerating electrodes each connected to the succeeding target, and a magnetic field guides the electrons from one target to the next. One target is divided into two portions having different emissions, the dividing line being either parallel or perpendicular to the direction of electron travel, and the beam is deflected by varying the accelerating field, the magnetic field or a separate transverse electric field. In the zigzag type shown, the target B is divided into two parts B1, B2 of different emissions and the electron beam, focused by electrostatic or magnetic lenses, is deflected from one to the other by deflecting plates C. To avoid disturbance of the electron path by the modulation deflection, two targets may be divided into two parts B1, B2; B<1>1, B<1>2 (not shown), such that B1 is similarly situated to B<1>1 but has the same emission as B<1>2 and vice versa ; the beam is deflected simultaneously from B1 to B2 and from B<1>2 to B<1>1. A target may be divided into three parts, the outer parts being similar in emission ; if a sinusoidal deflection is applied to the beam, harmonics will be generated. Specification 427,509 is referred to.
Patent GB-885084-A (GB)
Title: Bonded fibre webs
Inventor: LOWE ARTHUR
IPC: D04H1/68
Filed: 1957-07-05
Abstract: 885,084. Agglutinated fibrous materials; coated non-woven fabrics. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 16, 1958 [July 5, 1957], No. 21326/57. Class 140. A bonded fibre web is characterized in that the fibres are held together solely by the bonding agent which comprises a polyurethane that is applied in an uncured state and is subsequently cured and wherein the polyurethaneforming ingredients are chosen so that the polyurethane product is a flexible foam. The web may be obtained from a carding machine. Specified fibres are cotton, wool, viscose or acetate rayon, nylon, polyethylene terephthalate, polyacrylonitrile, glass, asbestos or mixtures thereof. Bonding may be effected by applying to the web the polyurethane-forming ingredients by spraying, pouring, spreading, dipping or coating by roller. The polyurethane may be prepared by reaction between polyesters, polyesteramides, or polyethers and polyisocyanates in the presence of catalysts. Specifications 769,680, 839,183 and 845,206 are referred to.
Patent GB-1279176-A (GB)
Title: Clutch mechanism for an impact wrench
IPC: B25B21/02
Filed: 1970-05-04
Abstract: 1279176 Rotary impact wrenches INGERSOLL-RAND CO 4 May 1970 [24 June 1969] 21244/70 Heading B3N An impact clutch mechanism for an air driven rotary impact wrench comprises an anvil 15 having an impact jaw 16, a hammer carrier having end plates 23, 24 connected by a pin 25 and a hammer dog 28 pivoted on pin 25 and having impact faces 29. Pin 25 is a sliding fit in bores 26 and allows the pin to rock slightly so that the pin is not quite parallel to the anvil axis. This hammer dog 28 can automatically adjust itself during impact without producing excessively high stress loads in the hammer carrier. Hammer dog 28 is driven by a driver cam 20 via a cam projection 30, the driver cam being splined to the output shaft of an air motor.
Patent GB-1218835-A (GB)
Title: Improvements in or relating to soldering and unsoldering devices
Inventor: KRIEG HANS
IPC: B23K1/018
Filed: 1968-05-06
Abstract: 1,218,835. Soldering. H. KRIEG. 6 May, 1968 [6 May, 1967], No. 21302/68. Heading B3R.  A device for soldering and unsoldering components on printed circuits comprises a handle 12, a bit 1 having an axial bore 10 extending from one end of at least a portion of the bit to the other, a sleeve 7 connecting the handle to the bit, a heating element 4 in the sleeve to heat the bit and a slidable pin 11 extending into the axial bore in the bit from a retracted position in which the end of a wire of a component can enter the bore, into an advanced position in which the pin projects from the bit to push the wire out of a hole in which it is soldered. The metal sleeve 7 extending from the wood or plastics handle 12 has a collar 8 at its lower end in which the copper bit 1 is held by a screw 9, the bit entering the bore in an electric heating element 4 held in the lower end of the sleeve 7. The pin 11 has reduced diameter portions 13, 14 on its lower end which project into a reduced diameter portion 15 of the bore 10 of the bit and slides at its upper end through bores 16, 17 in plates 18, 19 fixed in a recess 20 in the handle. A compression spring 25 is arranged between the upper plate 18 and a stop 24 on the pin and a ball ended lever 21 is fixed to the pin to be movable in a slot in the handle having horizontal and vertical portions. In operation with the pin its retracted position as shown the heated bit is placed over a wire extending from a printed circuit to melt the solder joint and then the lever 21 is moved from the horizontal leg of the slot to the vertical portion when the spring 25 urges the pin downwardly to cause the portion 14 of the pin to push the wire from the board and to clean the hole of solder. In a modification the bit has one portion coaxial with the handle and a second portion at an angle to the axis of the handle, the pin then being mounted for movement along the axis of the second portion of the bit by a two-armed operating lever on the exterior of the handle.
Patent GB-1345416-A (GB)
Title: Disposable diaper
IPC: A61F13/15
Filed: 1971-04-19
Abstract: 1345416 Diaper MOLNLYCKE AB 19 April 1971 [10 Feb 1970] 21409/71 Heading A3V A diaper comprises a T-shaped fluid absorbing body which is formed of defibred cellulose 1 wrapped in water-transmitting, non-woven, fibrous material 2 and has an insert 5, e.g. of plastics mesh or foam plastics, embedded therein to extend throughout the cross portion 3 of the T and into the stem portion 6 of the T as shown. In use the insert 5 serves to stabilize that portion of the body in which it is located in both the wet and dry states of the body thereby to prevent displacement of the diaper from its intended position on the wearer with the portion 6 between the wearer's legs the portion 3 on the front of the wearer's body above the legs. The portion 3 of the body may be made thicker than the portion 6, and an acrylic resin binder may be include in the cellulose 1. A plastics covering may be provided on that side of the portion 3 intended to lie nearest the wearer in use.
Patent GB-224968-A (GB)
Title: Improvements in or connected with apparatus for boring earth and rock
IPC: E21B21/00
Filed: 1923-08-24
Abstract: 224,968. Reichwald, A. W., (Schweitzer, E.). Aug. 24, 1923. Bore-hole apparatus.-Apparatus for boring earth and rock comprises a slide 4 adjustable in guides 5 in a framework by means of a winch 7 and a flexible connection 6 passing over pulleys on the slide and framework, the slide 4 carrying a single-acting reciprocating motor 3 and the boring bar 1 being attached to the motor piston 2; handles are provided on the boring bar to rotate the latter and a pipe 8, fixed to the upper cylinder cover of the motor, passes through a gland in the motor piston and into the boring bar to supply scavenging water. The Provisional Specification states that the apparatus may be adapted for boring upwardly,
Patent GB-1182730-A (GB)
Title: Improvements in and relating to Roller Apparatus more especially for Stretching Film Webs Longitudinally
IPC: B21C47/00
Filed: 1968-05-07
Abstract: 1,182,730. Film web stretching apparatus. KALLE A.G. 7 May, 1968 [8 May, 1967], No. 21544/68. Heading B5B. A roller assembly, for use more especially for the longitudinal stretching of webs of plastics film, comprises freely rotatable rollers 1, 2 (Figs. 1 and 2) mounted parallel to one another on fixed axes. A third roller 3, acting as a driving roller and itself driven through a suitable flexible coupling 25 by means of a motor 26, is mounted in two vertically yieldable bearings, one of which is shown at 9, the axis of the roller 3 being located in the plane of symmetry a-b of the rollers I and 2. The bearings 9 of the driving roller 3 are adapted to allow the roller to move in a vertical plane so that its weight is supported by the rollers 1 and 2 |(or by the film web passing through the nips between the rollers 3 and 1 and 3 and 2 respectively). In a plane perpendicular to the three roller axes, lines joining them form a triangle having an apical angle of 120 degrees. A further roller 4 parallel to the other rollers is positioned over the driving roller 3, its axis being in the plane of symmetry a-b of the other three rollers, and the journals of this roller, one of which is shown at 5, are mounted to be freely rotatable in bearings at the outer ends of levers 6 mounted on pivots 7. The arrangement is such that the plane in which lie the pivots 7 and the axis of the roller 4 also contains the line on the further side of the periphery of the roller 4 where the approaching film web 8 first contacts the roller, the direction of this approach being such that there is a small clearance between the web and the periphery of the roller 1. The web 8 after passing around the freely rotatable roller 4 passes around the driving roller 3 after which the emerging web 10 continues its course from any required line on the periphery of the roller 2. When first introducing the web 8 into the roller assembly the rollers 3 and 4 are raised by known means, such as hydraulic jacks, so as to facilitate the introduction of the web. In the modification shown in Fig. 3, the freely rotatable pivotably mounted roller 4 is replaced by two rollers 12 and 13 freely rotatable in bearings at the ends of levers pivoted on pivots one of which is shown at 18. An apparatus for the longitudinal stretching of a film web may comprise a mirror-image duplication of the roller assemblies shown in Figs. 1 and 2. In this case the web is stretched between a zone between the two assemblies and the zone is provided with heating means. The positively driven roller of the draw roller assembly is driven at a higher peripheral speed than the corresponding roller of the feed roller assembly. The arrangement according to the invention enables the forces necessary to exert pressure at the roller nips to be derived from the tension in the film web.
Patent GB-678339-A (GB)
Title: Improved magnetic materials and devices
IPC: C22C1/02
Filed: 1950-09-01
Abstract: In a modification of the invention of the parent Specification, alloys containing 75-85 per cent Ni, 2-7 per cent Mo and the remainder Fe and prepared under such conditions that the molten alloy is essentially free, any time at which oxidizing conditions exist in the melt, of deoxidizers having a greater affinity for oxygen than Mn and which are capable of forming oxides which are stable at the temperature of the melt.  Thus by employing Mn as deoxidizer, e.g. up to 2 per cent by weight of the melt, the whole or part of the melting operation may be carried out in air.  The initial part of the melting operation may be carried out in air and the latter part under vacuum or under an inert gas such as helium.  Co may be present in the alloy as an impurity up to 1 per cent by weight.
Patent GB-404386-A (GB)
Title: Improvements in or relating to the manufacture of paper
IPC: D21C9/00
Filed: 1932-08-02
Abstract: 404,386. Treatment of fibrous cellulose. PAPETERIES NAVARRE SOC. ANON., 52, Avenue Marechal Foch, Lyons, France. Aug. 2, 1932, No. 21676. Convention date, April 22. [Class 96.] To fibrous cellulose, before or in the course of its manufacture into sheet form but before its use for making sized paper or board is added a sizing material comprising wax and insoluble in water. In an example 3-5 per cent of paraffin wax is added to cellulose, as an emulsion or solution, or is melted and applied by atomization or by rollers. Cellulose thus treated may be mixed with ordinary cellulose.