baber/WOPTO huggingface dataset:
Patent GB-328418-A (GB)
Title: Improvements in the manufacture of m-2-xylidine
Filed: 1929-04-11
Abstract: 328,418. Imperial Chemical Industries, Ltd., and Allchin, L. J. April 11, 1929. Vic-m-xylidine is obtained from the mixture of isomeric xylidines remaining, after the removal of the bulk of the p- and asym-m-xylidines by the usual processes from the reduction product of crude nitroxylenes, by dissolving in moderately concentrated hydrochloric acid and adding to the hot solution the chloride of a metal of group II(b) of the Periodic System, e.g. zinc chloride, cooling, and filtering the crystalline precipitate. In an example, the crude oil obtained as described above, is dissolved in hydrochloric acid, heated, and powdered zinc chloride is added solid or in solution. The crystalline precipitate obtained on standing is filtered, washed, and basified with sufficient or slight excess of alkali, and the m-2- xylidine distilled in steam.
Patent GB-1026357-A (GB)
Title: Improvements relating to photosensitive material and its preparation
IPC: G03C1/64
Filed: 1964-03-17
Abstract: 1,026,357. Photographic print-out material. P. F. VAN VLISSINGEN & CO's KATOENFABRIEKEN.N.V. March 17,1964 [March 19,1963],No. 11289/64. Heading G2C. A photosensitive print-out material comprises a base, such as paper, a ceramic tile or cotton fabric, impregnated with or carrying as a layer or layers a cyclotetra-isoindolenine-(endo-isoindolenino)-cobalt complex with a polyamine and at least one photosensitive ferric salt capable of reducing the complex to a phthalocyanine pigment under the influence of light, such as ferric chloride, ferric oxalate, ferric ammonium oxalate, ferric citrate or ferric ammonium citrate. The photosensitive material is made by applying to the base, separately or after mixing, a solution of the ferric salt and a weakly acid solution of the complex. Thickeners such as gelatin or tragacanth may be present. After exposure to an image, the unexposed ferric salt is washed out with water to give a negative blue image on a yellow ground or both the ferric salt and the complex are removed by washing with aqueous acetic acid which may contain ethyl acetate or spirit and sulphuric acid to give ablue-on-white result. A deeper image is obtained by moistening the exposed material before the washing step with a solution of borax and sodium tartrate and drying at an elevated temperature.
Patent GB-543253-A (GB)
Title: Improvements in or relating to the drawing of metals
IPC: B21C9/02
Filed: 1940-07-05
Abstract: 543,253. Lubricants for drawing metals. CROWTHER, H. A. H., and INDUSTRIAL & COMMERCIAL DETERGENTS, Ltd. July 5, 1940, No. 11303. [Class 91] The manufacture of metal tubes, shells and the like is carried out by a drawing operation using as the drawing lubricant an emulsion containing mineral oil and an alumino silicate which is characterized in that it has been prepared by first mixing the mineral oil and alumino silicate into a paste and then mixing this paste with .water in the presence of an emulsify-. ing agent. The preparation of the lubricant is described and claimed in Specification 543,284,
Patent GB-468534-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/14
Filed: 1936-04-20
Abstract: 468,534. Piston-rings. STOFFEL, C. April 20, 1936, No. 11313. Convention date, April 19, 1935. [Class 122 (i)] A cross-shaped member 2, 3 is secured in slots in one end of a split ring by spreading its tenons under pressure and is slidable in corresponding slots in the other ring end. The ring ends may be inclined or stepped or of other form. The surfaces of the ring in contact with the groove may be coated with metal foil, e.g. brass. One or more continuous or interrupted oil grooves may be cut in the inner circum. ference of the ring. The Specification as open to inspection under Sect. 91 describes also the constructions shown in Figs. 2 and 3 (Cancelled), in which boxshaped members 8 shrunk on to one end of the ring are provided with one or more projections 9, 10, 14, 15 engaging recesses in the other ring end. This subject-matter does not appear in the Specification as accepted.
Patent GB-177425-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M11/02
Filed: 1921-04-19
Abstract: 177,425. Allen & Co., Ltd., E., and Green, W. April 19, 1921. Air supply, regulating; doors.-The furnace door a serving as an air-inlet closure slides vertically in the guide b and is connected to the dashpot h by a chain c passing over a plain pulley d and a differential pulley e, f. A chain i, having a handle l adapted to engage a projection o so as to hold the door a open in various positions, passes over a pulley k and is connected to the chain c in order to raise the door. On the door a being raised, the piston in the dash-pot h falls and liquid from the tank r flows into the cylinder through the non-return valve p, the quantity being regulated by the valve q. On the door being released, the liquid is driven from the cylinder through the pipe s, having a plug with a suitable aperture placed in it, to the tank r. A screwed rod t through the lower end of the dashpot determines the distance, through which the piston falls, and consequently the time of closing of the door a.
Patent GB-759548-A (GB)
Title: Improvements in hydraulic servo systems
IPC: F15B11/05
Filed: 1954-04-20
Abstract: 759,548. Radial cylinder pumps. HOBSON, Ltd., H. M., and SMITH, C. P. March 8, 1955 [April 20, 1954], No. 11343/54. Class 102(1). [Also in Group XXIX] A two-stage pump similar to that described in Specification 681,625 supplies a hydraulic actuator 14 through a control valve 15, the velocity of the actuator being controlled by the displacement of the valve 15 from the neutral position shown, a valve 16 being subject to the pressure drop across the valve 15 and serving to maintain it constant at a value determined by a spring 23. The output velocity for any selected setting of the valve 15 is thereby maintained constant and independent of the output load. The first stage 10 of the pump supplies liquid to the second stage 12, the valve 16 serving, on an increase in the pressure drop across valve 15, to throttle the supply to the second stage and to by-pass part of the first stage delivery back to a. reservoir 11. Specifications 582,182 and 659,010 also are referred to.
Patent GB-546813-A (GB)
Title: Improved support for fire hose
IPC: A62C31/28
Filed: 1941-09-06
Abstract: 546,813. Support for fire hose. BURT, F. W. Sept. 6, 1941. No. 11417. [Class 47 (ii)) A support for a fire hose comprises a steel tubular member a having secured to it straps a<SP>1</SP>, a<SP>2</SP> for engaging the hose, a member b with U-shaped lugs c adapted to engage lugs on the hose coupling, curved guides d, e, e<SP>1</SP>, of which the two front ones are formed with ground-engaging prongs, and a handle f, which is bent at g near to its point of attachment to the member a by means of a pin removably engaging a frame member l. The handle is furnished with a cross. bar carrying hooks h adapted to engage the fireman's belt.
Patent GB-578822-A (GB)
Title: Delay-action locking or unlocking mechanism
IPC: G04F3/02
Filed: 1944-06-15
Abstract: 578,822. Time-delay locks. ROTHERHAM & SONS. Ltd., and LITCHFIELD, S. E. June 15, 1944, No. 11425. [Class 44] A time lag locking device to release parachutes, operate electric contacts or door locks, comprises a bolt 31 adapted for instance to engage the loop of a parachute and held retracted by a ball 30 which is released by a plunger 11 by means of a step 27 when the plunger has effected a predetermined movement under the influence of the time delay mechanism. When the bolt 31 is moved into locking position the ball 30 which is contained in a slot in the bolt is moved opposite a depression 35. The plunger 11 is then depressed against a spring 17 and the step 27 on the plunger forces the ball into the depression 35. The end of the plunger protrudes from the casing and is held in this position by a release pin. The plunger 11 is controlled by the time delay mechanism 22 by means of a gear train 21 and a rack 19 on the plunger, a free-wheel device allows depression of the plunger, for locking, without disturbing the time delay mechanism. To unlock the bolt the pin is withdrawn from the plunger which after a time delay, releases the ball and allows the bolt 31 to be projected by a spring 34 or if the spring abutment 16 is dispensed with, by the plunger spring 17. The time delay mechanism may be controlled by an escapement, wind vane or eddy current disc. A number of holes may be provided in the end of the plunger for the release pin in order that the apparatus may operate after different time intervals. A modification is shown in which the bolt 31 has a detent to hold the loop of a parachute.
Patent GB-253318-A (GB)
Title: Improvements in or relating to shuttering for the casting in situ of hollow concretewalls
IPC: E04G11/18
Filed: 1925-05-02
Abstract: 253,318. Gammell, S. J. May 2, 1925. Casting walls in situ.-Hollow walls are cast in situ by the use of removable cores 1 which rest on bridge-pieces 2 forming bonds between the sides of the wall, and the sections of the cores are separated by distance-pieces 5 formed of flexible material of rectangular tubular cross section, and which may be either removed or left in position in the wall. The distance-pieces 5 may be supported on the bridge-pieces 2 or on separate wall-ties 6. The cores are provided with wedge expanders, and the distance-pieces may be formed of mating portions of sheet metal of channel-section.
Patent GB-508613-A (GB)
Title: Improvements relating to metal and other grinding or cutting machines
IPC: B23F1/02
Filed: 1938-04-14
Abstract: 508,613. Grinding and cutting metal etc.; gauging-devices. GEAR GRINDING CO., Ltd., and ORCUTT, A. H. April 14, 1938, No. 11484. [Class 60] [Also in Group XXII] In a machine for grinding or cutting metal, &c., and described as a machine for grinding toothed wheels, splined shafts, &c., means are provided for indicating when the desired relative feed,of the work and the tool has been completed. The machine comprises a slide b movable on a bed a and carrying, in head- and tail-stocks f, g, the work i. On the bed is a vertical guide c in which is movable a slide d, carrying the grinding-wheel c, and movable towards and from the work by a feed screw k, which engages a nut rotatable in a casing s either directly by a disengageable hand-wheel u, or, for slow feed, through worm-gearing o, p by a spindle m carrying a hand-wheel n and mounted in a housing z. Concentric with the spindle m is a screwed sleeve x which engages a nut 2 slidably guided in the housing z, and the sleeve x is driven by the spindle m through a friction clutch 3, 4 engaged by springs 5 in a member 6 rotatable with the sleeve x. The nut 2 has an extension 7 which, when the wheel e has been fed down the desired extent, projects through an opening 8 in the housing z into the path of a projection 9 on the member 6, thereby stopping rotation of the sleeve, and indicating that feed has been completed. In setting up the device, a wheel trimming tool j, the position of which corresponds to the finished size of the work, is moved into operative position. The wheel e is then fed down for trimming by rotation of the hand-wheel n, this operation bringing the extension 7 into position to engage the projection 9 and causing the friction clutch to slip so that further feed of the wheel e is caused by rotation of the spindle m only. Upon subsequent feed of the trued wheel, this reaches its position for finished size of the work, when the extension 7 again arrests the projection 9.
Patent GB-861584-A (GB)
Title: Ultrasonic flowmeter
IPC: G01F1/66
Filed: 1958-04-11
Abstract: 861,584. Ultrasonic fluid-flow meters; valve oscillator circuits. TECHNICAL CERAMICS Ltd. (Gulton Manufacturing Corporation). April 11,1958,No. 11529/58. Classes 40 (6) and 40 (7). [Also in Group XXXV] Relates to the indication of the rate of mass fluid flow by ultrasonic devices. According to the invention a voltage proportional to V/V<SP>1</SP>, where V is the fluid-flow velocity and V<SP>1</SP> is the wave-propagation velocity in the fluid, is generated according to the system disclosed in Specification 856,415 and this voltage is modified by the factor PV<SP>1</SP>, i.e. the acoustic impedance of the fluid, where P is the fluid pressure, to give an output voltage proportional to the rate of mass fluid flow PV. Variation of velocity V<SP>1</SP> with temperature &c. does not therefore affect the measurement. The output voltage is indicated by a meter or cathode-ray oscilloscope. In the preferred embodiment the output of detector 20, Fig. 1, is proportional to V/V<SP>1</SP> and a receiving transducer 17 (see also Fig. 3) is in a circuit containing adjustable inductor 22 for neutralizing the transducer capacitance and the output of detector 31 is proportional to factor PV<SP>1</SP>, the correct adjustment of the inductor being found using a resonance indicator (not shown), e.g. a neon lamp, in amplifier 26 anode circuit. Pierce oscillator 15 frequency is determined by transmitting transducer 13 and the oscillator output is stabilized by feeding a detected output of amplifier 26 to the control grid of oscillator valve 25. Transducer 17 is mounted with its surface in contact with the outer surface of pipe 10 or with the fluid. Amplifier 19 is tuned and feeds a detector circuit, Fig. 4 (not shown). In the alternative embodiment the factor PV<SP>1</SP> is introduced at the output of amplifier 19 and the detected circuit output is fed to the indicator, Figs. 5 and 6 (neither shown).
Patent GB-1495681-A (GB)
Title: Coilers
IPC: B21C47/24
Filed: 1975-03-20
Abstract: 1495681 Wire coiling apparatus FRIEDRICH KOCKS GmbH & CO 20 March 1975 [13 April 1974] 11581/75 Heading DIT A wire coiling apparatus Fig. 1 of the kind in which wire is deposited by guide means 9 onto a table 1 that is rotatable about a vertical axis 3, the edge resion of the table 1 carrying upstanding retaining rods 2 or a  cylinder to surround the deposited coil, is characterised in that on the table 1 is a transfer plate 7 that can be moved along the axis 3 away from the table 1, the apparatus being tiltable through 90‹ to a horizontal setting Fig. 2 so that the deposited coil can be displaced axially by the transfer plate 7 onto a C-shaped hook 17. The apparatus tilts about the axis of the motor 4 that is used to rotate the table 1. One or more catch hooks 21 prevent the uppermost turns from spilling out whilst the apparatus is tilted into the horizontal setting shown in Fig. 2, there catches 21 being swung to an inoperative position prior to the coil being pushed onto the C-shaped hook 17. The guide rods 8 that are also secured to the table 1 act as guides for the sliding transfer plate 7 and as interior retaining rods for the coil being formed.
Patent GB-773988-A (GB)
Title: Improvements in or relating to high frequency apparatus
Inventor: COLLARD JOHN
IPC: G01R21/12
Filed: 1954-04-22
Abstract: 773,988. High-frequency discharge apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 12, 1955 [April 22, 1954], No. 11598/54. Class 39(1). Apparatus in which a high frequency field is set up contains within the field a discharge tube in which the anode is large compared with the cathode, although subtending an angle of substantially less than 360 degrees ; the disposition is such that the h.f. field becomes progressively weaker from cathode to anode, so that it is too weak to affect electrons when the field is reversed. As shown, the tube is a cylindrical diode, having a filamentary cathode 4 and an arcuate anode 5, placed at the centre of a rectangular waveguide 1 excited to set up a field of H10 type. The tube leads 9, 10 are bent at right angles to the electric field to support the tube in the guide. Suitable dimensions are given. Such an arrangement is convenient for measuring the power propagated along the guide, by measuring the anode potential, and also for signal detection, mixing, or modulation. Fig. 2 (not shown) of the Provisional Specification has a differently shaped diode.
Patent GB-199704-A (GB)
Title: Improvements in flyers for roving, twisting and like machines
IPC: D01H7/30
Filed: 1923-05-01
Abstract: 199,704. Feaster, E. B., (Assignee of Sahlin, H.). June 24, 1922, [Convention date]. Spindle apparatus.-A flyer for roving, twisting and like machines is formed with a solid metal arm a and a composite hollow arm b, the arm b consisting of a forged metal upper portion 14 and a sheet metal lower portion 39 welded together at 45 and provided with communicating longitudinal slots 25. The forged blank 14, Fig. 5, forming the upper portion of the arm b, is provided with a lug 33, from which the ears 20, 21, Fig. 1, are cut to form the mounting for the usual presser arm. The arm a may be integral with the forged blank 14, Fig. 5, or may be welded thereto. Specification 189,930 is referred to.
Patent GB-552093-A (GB)
Title: Improvements relating to the production of shaped articles having a fabric base
IPC: B32B27/00
Filed: 1941-09-16
Abstract: 552,093. Moulding brassieres and other articles of wearing apparel. BRITISH CELANESE Ltd. Sept. 16, 1941, No. 11837. Convention date, Sept. 20, 1940. [Class 87 (ii)] [Also in Groups VII and VIII] The material to form a brassiere (or hat, cap or suspensory), made of fabric comprising filaments or fibres of a thermoplastic derivative of cellulose, is first shaped to form a hollow article larger internally than the desired article, and is then moulded and shrunk to the desired shape and size. The resultant article then keeps its shape on washing, wringing &c. The initial shaping may be carried out by pressing between male and female mould parts 4, 11, the parts 11 having removable caps 17 ; the material may be forced over the cap by hand or by mechanical means. The caps are then removed, and the moulding is then effected between the parts 4 and the bare parts 11. Channels 5, 6, 9 and 12 conduct heated fluid (steam, water) to the mould surfaces. The caps 17 may be made of aluminium, copper or lead. In a modification, the initial shaping may be carried out on a large mould, the shaped article being then transferred to a smaller mould. Wetting during the initial shaping may be by means of wet towels. The material may be formed of an outer layer of fabric of natural silk, artificial silk, cotton or a mixture of these, an intermediate layer of fabric of thermoplastic cellulose derivative with or without cotton, and an inner facing of the same fabric as the outer layer or of different fabric. The fabrics may be woven, circular knitted, warp knitted or netted.
Patent GB-768530-A (GB)
Title: Large-size containers such as silos and the like
IPC: B65D88/74
Filed: 1955-04-25
Abstract: 768,530. Granaries and silos. REIMBERT. A. April 25, 1955 [Nov. 19, 1954], No. 11901/55. Class 20(1) A silo or the like comprises a frame carrying a plurality of superposed ring elements 1 with their walls inclined inwardly and downwardly with regard to the axis of the container and so arranged that material is retained within the container and. at the same time, aerated. As shown in Fig. 3, the spacing of the rings is such that a line 3 marking the angle of repose of the material (a) and passing through the lower edge 1a of one ring does not pass higher than the upper edge 1b of the adjacent ring, so that the contents do not run out. The rings are mounted on metal or wooden posts 5 and may be secured by welding, riveting or bolting. Otherwise the posts may extend through the rings and be secured thereto by angle-irons, gusset-plates or nuts and bolts. Further ring elements 7, Fig. 6, may be provided. The rings may be curved instead of flat, Fig. 7 (not shown).
Patent GB-325164-A (GB)
Title: Improvements in or relating to lasting machines
IPC: A43D71/00
Filed: 1929-04-17
Abstract: 325,164. Wade, H., (Nollesche Werke Kommandit Ges.). April 17, 1929. Loose-nailing.-Relates to step-by-step lasting machines having a tack hopper with three separate chambers, three raceways leading therefrom, and means for allowing two raceways to be used while operating on a shoe. The side and rear covers of the hopper rotate and lift the tacks, which fall into fixed shoots and slide therefrom into the raceways. A housing accommodating the three raceways is swung by a cam adjustable so that two raceways may be chosen out of the three. The machine is of the kind described in Specification 7156/01, [Class 17, Boots &c.], wherein change of tack is automatically effected simultaneously with the change of the shoe gauge as different parts of the shoe are operated on by a rack and sector 31, Fig. 5. The housing is pivoted at 10 and connected by a ball-ended rod 11 to a pin 15, the rod being forked to embrace and be guided on a spindle 28, which is oscillated by the sector 31. If it is desired to select any two of the three raceways a, b, c to be alternately aligned with the delivery shoot 16, the selector mechanism comprises two discs 3, 4, Fig. 7, each formed with a slot so shaped that on relatively moving the discs about the spindle 28 the common portions of the superposed slots actuate the pin 15. The disc 3 is secured to a cap 2, the assembly being adjustable about a sleeve 1 secured to the spindle 28 and provided with two notches 8. The cap has two similar notches 7, and the notches co-operate with a pawl 5 pivoted to the disc 4. The disc 4 has a projecting handle for adjustment, and the arrangement is such that after adjustment and locking by the pawl 5, the assembly provides a common cam slot shaped (1) as shaded in Fig. 11, when the raceways a, c are alternately brought into action, or (2) as in full lines in this Figure, when the raceways b, c are used, or (3) as in dotted lines, when the raceways b, c will be used. In a modification, one of the slotted discs is omitted, limiting the choice to two of the three combinations. The slide and rear covers of the tack hoppers, Fig. 2, are each provided with lifting scoops g, for elevating the tacks and delivering them to shoots o leading to the raceways. These covers are rotated by gearing j, m.