baber/WOPTO huggingface dataset:
Patent GB-821734-A (GB)
Title: Improvements in or relating to reversing valves for regenerative ovens, particularly regenerative coke-oven batteries
IPC: C10B21/14
Filed: 1957-04-08
Abstract: 821,734. Valves. KOPPERS G.m.b.H., H. April 8, 1957 [April 13, 1956], No. 11363/57. Class 135. A recovery valve for a regenerator oven, comprises a waste gas valve 5, Fig. 1, operable by a lever 20, Fig. 2, to open and close communication between a sole flue connected at 2 and a waste gas flue connected at 3 and an air valve 7 carried by a rocker-arm 36 which cooperates with the lever 20 to open the valve 7 against gravity to admit combustion air to the sole flue during the final closing movement of the valve 5. The lever 20 pivoted at 21 to a bridge 12 mounted on the valve body 1 and operable through a chain 22 and clamps 23 by a reversing machine is formed with a forked arm 25 which coacts with recesses in a thrust collar 27 resiliently connected by a spring 34 to a bush 31 secured to the waste gas valve spindle 8. The spring 34 permits further movement of the lever 20 after seating of the valve 5 to ensure tight closure of the valve. On closure of the valve 5 a cam-like surface 19 on the lever 20 engages a roller 18 carried on an arm 16 mounted on a pivot-pin 15 to cause a pawl 17 fixed to the pin to rotate during the terminal portion of the movement of the lever 20. This pawl engages either a bolt 43 or a bolt 44 mounted on the rocker-arm 36 depending on the position of a handle 41 and whether " rich " or " lean gas is to be used to heat the oven. When rich " gas is used two regenerators in a battery of four heat the air, the pawl 17 engaging the bolt 44 with lost-motion, the valve 5 being closed before the valve 7 commences to open. When " lean " gas is used only one regenerator in the battery heats the combustion air, the pawl 17 then engaging the bolt 43 to open the valve 7 sooner and wider for increased volume of air flow. When " lean " gas is used it is desirable to heat this gas prior to its mixture with the air for combustion in which case one of the valves is modified to include a "lean" gas inlet, communication between which and the sole flue is controlled by a slide valve operable by the reversing machine. The air valve 7 is then locked in its closed position by a pin passing through a lug on the casing and the rocker-arm 36, the bolt 43 is then swung out of engagement with the pawl 17 so as not to impede the movement of the valve 5 during the operation of the slide valve. Clearance between the collar 27 and the bush 31 enables the rod 8 to be rotated to grind in the valve 5 without disconnecting the lever 20. A butterfly valve 57 may be fitted in the waste gas flue connection 3 to regulate the outflow of waste gases.
Patent GB-963117-A (GB)
Title: Improvements relating to apparatus for contacting liquids
Inventor: KNOWLES KENNETH
IPC: B01D11/04
Filed: 1962-03-26
Abstract: <PICT:0963117/C1/1> In an apparatus for contacting immiscible or partially-miscible liquids there is provided at one end 2 of horizontal or substantially horizontal counter-current contacting vessel 1, at approximately the desired height of the liquid interface at that end of the vessel, an outlet 4 through which liquid is delivered at a suitable rate to keep the interface steady into a separator 7, the inlet at that end 2 of the vessel being connected to the part of the separator in which collects the liquid phase which is supplied at that end of the vessel.  The control of the interface may be by means of pump 5 or a standpipe as depicted in Figs. 2 and 3 (not shown). Specification 860,880 is referred to.
Patent GB-1536483-A (GB)
Title: Blood filter
IPC: A61M5/165
Filed: 1976-03-22
Abstract: 1536483 Blood filter DR EDUARD FRESENIUS CHEMISCH - PHARMAZEUTISCHE INDUSTRIE KG 22 March 1976 [14 April 1975] 11469/76 Heading B1D A blood filter for removing decayed and aggregated blood corpuscles and foreign components from blood, comprising a dense unwoven packing of a crimped fibre or fibres having substantially the same diameter as corpuscles of the blood, characterised in that the packing is formed from a single plastics monofilament or cords of plastics material threads which is or are too long to be carried away by the blood. The filament may be star shaped cross-section, the ends may be secured together to form a loop or loops.
Patent GB-234469-A (GB)
Title: Improvements in or relating to whistling buoys
IPC: B63B22/16
Filed: 1925-05-04
Abstract: 234,469. Naamlooze Vennootschap Machinerieen-en Apparaten Fabrieken. May 24, 1924, [Convention date]. Wave-actuated signals.-A buoy 4, of the kind in which the fall of water in a central chamber 3 sucks in air through a valve 5, and the rise of water expels air through a whistle 1 (the chamber 3 being open to the sea at the bottom) means are provided for causing certain of the consequent whistle-blasts to be omitted, in order to form a code. Thus a by-pass valve 6 may be opened intermittently by a lever 7 pivoted on a bracket 46, the other end of the lever being pressed by a spring 45 against a cam 8 which is revolved by a pawl 10 acting on a ratchet wheel 9. The pawl rod 10 may be reciprocated vertically by the action of a membrane 13 or plunger located in a tube 12, or by a float located in the chamber 3.
Patent GB-1249273-A (GB)
Title: Signal filter
IPC: H03H15/00
Filed: 1970-03-10
Abstract: 1,249,273. Active filters. TELEFONAKTIEBOLAGET L.M. ERICSSON. 10 March, 1970 [11 March, 1969; 6 Feb., 1970], No. 11487/70. Heading H3U. In a digital filter, the delay time T of the delay circuits D1, D2, D3 is made 1/N times the sampling interval, where N is greater than unity, whereby each input sample gives rise to an output at N points of time during a sampling period, each with a different transfer function. The sampling interval may vary from sample to sample, that is N need not be constant. A gate G may be included in the output to remove unwanted outputs. The delays are constituted by shift registers.
Patent GB-115675-A (GB)
IPC: A47G27/06
Abstract: 115,675. Greenland, H. May 14, 1917. Making brackets and stair-rod eyes.-A stairrod eye or angle bracket is built up of a number of thin layers of wood secured together. The glued strips are pressed together and the eye shaped in the angle of a press having a screwoperated pressure block F, a core D being placed between the front and back parts B, A of the eye.
Patent GB-586731-A (GB)
Title: Improvements in or relating to stoves, cookers and the like
IPC: F24C15/02
Filed: 1944-06-17
Abstract: 586,731. Doors for stoves &c. TRIPLEX FOUNDRY, Ltd., and HORRELL, C. R. June 17, 1944, No. 11581. [Class 126] [Also in Group XXV] Relates to a door mounting in which the door is hinged to a frame detachably secured to a stove, cooker, or the like, by means which can be disengaged for detaching the frame only when the door is opened or removed, and in which the frame, the securing means and the hinged parts are concealed when the door is closed. The construction is shown applied to a magazine coke-burning stove, the door 3 having parallel ribs 11 defining a groove 12 filled with packing and co-operating with a flange 21 on the top and sides of the frame 20 which is screwed to the stove through holes 29. Hinge pins 14 engage hinge lugs 28 on the frame 20, which is recessed at 23 and slotted at 24 to accommodate a bracket 13 carrying a limiting stay 15.
Patent GB-1531201-A (GB)
Title: Broadband two-port isolator
IPC: H01P1/383
Filed: 1977-03-21
Abstract: 1531201 Isolators MOTOROLA Inc 21 March 1977 [3 May 1976] 11771/77 Heading H1W A broadband isolator comprises a gyromagnetic (ferrite) element 13 in the vicinity of the intersection of two orthogonal, mutually insulated conductors 10, 11 connected respectively between input and output terminals and a point 15 of reference potential (earth). The dissipative element of the device is provided by a resistance 17. Capacitances 18 in parallel with the conductors provide matching. A magnetic circuit is provided by magnets 14 and a yoke 16. The conductors are enclosed within a (copper) electromagnetic shield 13 which may also enclose the magnets. Ferrite elements on both sides of the conductors may be provided.
Patent GB-1102866-A (GB)
Title: Stable transistor oscillator
IPC: H03B5/36
Filed: 1965-03-19
Abstract: 1,102,866. Transistor oscillator. SANDERS ASSOCIATES Inc. 19 March, 1965 [20 March, 1964], No. 11806/65. Heading H3T. An oscillator comprises a plurality of cascaded transistor amplifying stages including an input stage 10 and an output stage 12, a portion of the output of the output stage being fed back to the input stage to sustain oscillations, the output stage being connected in a common base configuration. As shown, the feedback path includes a piezo electric crystal 14, and the secondary 68 of an auto-transformer 50. The first stage is tuned by capacitor 32 and inductor 30 and the output is taken from a tapping 64 on the choke, chosen to provide an impedance match between the two stages. During operation stage 10 operates as a class A amplifier. Stage 12 operates as class AB, as a result of rectification in the base-emitter circuit.
Patent GB-1132983-A (GB)
Title: Preventing shaft lobing in high-speed machines
Inventor: HAWORTH LIONEL
IPC: F01D5/10
Filed: 1965-03-19
Abstract: 1,132,983. Shafts. ROLLS ROYCE Ltd. 18 March, 1966 [19 March, 1965], No. 11863/65. Heading F2U. Vibrations induced by a periodic force in a hollow shaft 13 rotating at high speed are reduced by rigid discs 20 engaging the interior of the shaft 13 and positioned at antinodes of the natural modes of vibration. As shown each disc 20 is slightly conical and has a flange 21 which abuts a shoulder 22 in the shaft whilst deformed portions of another flange 23 engage a recess in the shaft. In Fig. 5 (not shown), the discs are provided within a gas turbine engine shaft to prevent resonance at all normal operating conditions. Equations for determining the position of the discs are stated.
Patent GB-610972-A (GB)
Title: Improvements in or relating to mixing machines
IPC: B01F15/00
Filed: 1946-04-17
Abstract: 610,972. Mixing - machines. CRUIKSHANK, Ltd., J., and GALLIMORE, F. W. April 17, 1946, No. 11931. [Class 86] In a mixing-machine of the kind in which a stirring device depends from a gear lead which extends laterally from a hollow supporting column enclosing a motor and a self-contained enclosed change-speed gearing mounted one above the other, the change-speed gearing driving the gearing is enclosed within the gear-head through flexible belt or chain transmission which is detachable so that the change-speed gear-box is removable as a unit from the column. A change-speed gear box D is supported on a shelf 24 within a sheet metal column B and is driven by an electric motor C through chain gearing 6 and a clutch 27 operated by a control rod 29 and foot pedal 30. The gearing D drives, at a speed selected by a handle 28, through a chain 7, a pinion 5 on a shaft 4 which passes into a gear head unit A and drives a stirrer shaft 13 through epicyclic gearing. The motor C may alternatively be mounted above the gear box D and either above or below the pinion 5.
Patent GB-216147-A (GB)
Title: Improvements in electric signalling systems
IPC: H04B3/56
Filed: 1924-05-15
Abstract: 216,147. British Thomson-Houston Co., Ltd., (Assignees of Baker, W. R. G.). May 19, 1923, [Convention date]. Combined transmitting and receiving arrangements; wired wireless systems. - Modulated highfrequency oscillations are transmitted over power lines, the receiving and transmitting apparatus being alternately coupled to the power lines, and means are provided to prevent the accumulation of an electric charge on the coupling line when neither receiving nor transmitting apparatus is connected to the line. The Figure shows power lines 1 - - 3 and a coupling conductor 4 extending a thousand feet or more parallel and close thereto. A switch 5 serves to connect either the receiving apparatus 6 or the transmitting apparatus 7, while a coil 9, offering a high impedance to signalling currents and a low impedance to induced currents from the power conductors, is connected between the conductor 4 and earth. The coil 9 may be shunted by a spark-gap 10 to discharge high potentials.
Patent GB-1215742-A (GB)
Title: A method of and apparatus for nipping and smashing books
IPC: B42C19/08
Filed: 1968-03-12
Abstract: 1,215,742. Bookbinding W. KOLBUS, and U. HEITMANN, [trading as RAHDENER MASCHINENFABRIK AUGUST KOLBUS]. 12 March, 1968 [18 March, 1967], No. 12067/68. Heading B6A. Book signatures, book blocks or the like 11 are conveyed through a multi-stage spine nipping unit 2, each stage exerting a greater pressure than the preceding stage, and a whole surface smashing unit 3. The books &c. are fed by a conveyer 1 to rest against a stop 13 which intermittently permits a book to pass on to a further conveyer 5 whereon the book is pushed by a rod 8 connecting parallel conveyer chains 7 to the spine nipping station 2. The spine nipping is effected by projecting bars 19, 20, 21, Fig. 2, mounted on horizontally reciprocable pressure members 17, the bars projecting by progressively increasing amounts. Resiliently mounted pressure pads (18), Fig. 3 (not shown), hold the books steady in a spine nipping position. The book sections may be jogged at the first spine nipping position 14, or before entering the spine nipping unit, by vibrator rollers 22. After the final spine nipping position 16 the book is passed between pressure plates 9 of the whole surface smashing unit 3. The pressure members 17 may be pneumatically or hydraulically actuated.
Patent GB-591613-A (GB)
Title: Improvements in suspension filing systems
IPC: B42F15/02
Filed: 1945-05-14
Abstract: 591,613. Filing papers; index tabs. SHANNON, Ltd., and POSNER, B. B. May 14, 1945, Nos. 12092/45 and 5203/46. [Classes 16 and 146 (i)] A suspension bar or a connecting clip for use with suspended filing folders is made of inverted channel-shape and has a flat outer surface for supporting an index label and longitudinal grooves between the surface and the depending sides for the reception of the interned edges of a transparent sheath for the label. In the form shown in Fig. 2 which is used to connect the suspension bars of adjacent folders, the sides 1, 2 are inclined towards one another and are formed integrally with a T-shaped head providing a flat surface 10 upon which the label 23 is placed and grooves 7 to receive the inturned edges 9 of the transparent sheath 8. The clip is relatively short and preferably has bulges 17 in the sides for engagement with one of a series of holes in the suspension bar to position it as required. The bulges may be replaced by horizontal tongues and the holes by vertical slots. Each side 1, 2 is cut away at one end to facilitate placing the clips in position. In a modified form, Fig. 5, the clip is long enough to constitute the suspension bar and has a separate strip 20 secured thereto to form the flat label receiving surface and the grooves 7 for the sheath 8. Beadings 19 on the sides engage reinforcing strips on the edges of the folder.
Patent GB-731118-A (GB)
Title: Apparatus for registering and teletransmitting images formed with x or gamma rays
IPC: G01T1/26
Filed: 1950-05-15
Abstract: 731,118. Photo-conductive devices. BAZY, P. J. L., BRATCHET, C. M. F., and LEAUTE, P. M. A. May 15, 1950 [Oct. 3, 1949], No. 12114/50. Class 37. [Also in Group XL (a)] Apparatus for transmitting images formed by X or gamma rays includes a target plate composed of crystals of a photo-conductive compound of cadmium or zinc and sulphur selenium or tellurium and containing cadmium or zinc in excess of the stoichiometric formula, in which the crystals are arranged to provide a high lateral resistance. The target 5 of a cathode-ray tube consists of a conductive layer 8 carrying the photo-conductive plate 10, the potential 9 being applied to produce a potential difference across the target. The photo-conductive plate is made by interposing in a stream of cadmium sulphide a plane support of silica, porcelain, ceramic material, coal or a metal such as beryllium, or of a protected metal, heated to more than 300‹ C. The cadmium sulphide vapour is produced by heating cadmium and sulphur in hydrogen sulphide and hydrogen or helium. In an alternative process the support is coated with graphite or metallized with gold, platinum, copper or beryllium or other metals not volatile at 800-900 ‹ C. The process may be operated in vacuum or at low pressure utilizing electronic or ionic bombardment for heating. Several plates may be juxtaposed on one support, being joined together by an insulating substance such as sulphur. Specifications 501,375, 522,860, [both in Group XL], and 685,288, [Group XL (a)], are referred to.
Patent GB-830582-A (GB)
Title: Process and apparatus for comminuting and separating purposes
IPC: B02C9/04
Filed: 1958-04-17
Abstract: 830,582. Comminuting and separating cement, clinker &c. HISCHMANN, R., and HISCHMANN, H., [trading as HISCHMANN GEB.]. April 17, 1958 [April 18 1957], No. 12259/58. Class 59 In a process for comminuting and separating a crushable material e.g. cement clinker, in which material initially comminuted in a preliminary mill 3 is fed to a cyclic crushing apparatus consisting of a fine mill 10 and a separator 15, the initially comminuted material, before entering the cyclic crushing apparatus, is supplied from a storage hopper 6 by way of a regulatable conveyer device 7 to a preliminary separator 9 and is separated into a fine grain fraction I and a coarse grain fraction I and the coarse grain fraction I is fed directly, as shown, or by way of an intermediate hopper 16, Fig. 2 (not shown), to the cyclic crushing apparatus, is further comminuted therein and is separated into a fine grain fraction II and a coarse grain fraction II, the coarse grain fraction II being returned to the fine mill 10 directly or by way of the intermediate hopper 16. The feed of the initially comminuted material to the separator 9 is controlled by means of a level indicator 18 in the intermediate hopper 16, the indicator 18 being connected electrically to an adjustable motor 8 driving the conveyer device 7. Alternatively, the feed of the initially comminuted material to the separator 9 may be controlled by means of a sound-responsive device arranged alongside the mill 10 or by means of a load meter connected to the driving motor of a bucket conveyer 14. The mill 10 is subdivided into two chambers 11, 12 by means of a central partition. As shown the coarse grain fraction I and part of the coarse grain fraction II is fed to the chamber 11 while the remainder of the coarse grain fraction II is fed to the chamber 12. In Fig. 2 (not shown) the coarse grain fractions I and II are mixed in the hopper 16 before being fed to the chambers 11 and 12.
Patent GB-129477-A (GB)
Title: Improvements in Observation or Sighting Apertures for Protective Shields of Armoured Vehicles, Guns, and the like.
Inventor: ROBERTSON JOHN HOGG
IPC: F41H5/26
Filed: 1918-07-27
Abstract: 129,477. Robertson, J. H. July 27, 1918. Field carriages; mountings; armour-clad vehicle mountings.-Relates to observation apertures for the shields of armoured vehicles, guns, and the like, of the kind described in Specification 128,607, comprising a chamber having front and rear observation slots, and consists mainly in adapting the upper and lower portions of the chamber to converge to form the front slot, one of the portions extending in advance of the other, and carrying an inclined face to deflect bullets and the like into the interior opposite portion of the chamber. The invention also comprises various details of construction. One form of the device is shown in section in Fig. 1. The chamber A is of cylindrical form with either a circular or a pear-shaped cross-section, and is formed from two portions a, a<1> which converge forwardly to form the front sighting slot b. The portion a carries a bullet-deflecting plate d, which may be integral with the chamber or be an auxiliary attachment thereto. A second plate may be arranged inside the chamber, or baffle-plates each provided with a slot may be provided. The interior of the chamber A is lined with cushions e of rubber compound or the like. The rear sighting slot c may be fixed, or adapted to slide forwardly or rearwardly in the chamber as shown in Fig. 8, and its parallel inner faces may be provided with ratchet-like teeth to trap stray bullet &c. splashes. According to the Provisional Specification, the rear slot may be provided with a magnifying eyepiece. The chamber is rotatably mounted in bearings g in a frame h riveted to the shield, the gaps between the chamber and the frame being protected by one or more forwardly-projeoting plates i between which and the frame is provided cushioning material e. The bearings g permit only elevation or depression of the sight; but the device may be mounted on a part-spherical joint for all-round observations, and may be duplicated for binocular vision.
Patent GB-215191-A (GB)
Title: Improved bedstead
IPC: A47C19/20
Filed: 1923-05-08
Abstract: 215,191. Nash,.F. W. May 8, 1923. Bedsteads; berths. - A bedstead is provided with two mattresses F, D and can be used as an ordinary bed by supporting the mattresses F on the lugs G, or can be used as two bedsteads by placing the mattress F on the lugs E, in which case a partitioning device, Fig. 5 is placed between the two mattresses and is secured to the lugs G so as to divide the lower bed into two beds suitable for a baby and also for two children.
Patent GB-542621-A (GB)
Title: Improvements relating to roller mills for cereal grain
IPC: B02C4/38
Filed: 1940-07-30
Abstract: 542,621. Roller mills for cereal grain. ROBINSON & SON, Ltd., T., and ROBINSON, C. S. July 30, 1940, No. 12348. [Class 59] Relates to roll adjusting means of the type in which an eccentric j acts upon the lower end of a sleeve k disposed at the upper end of each roll parting rod u, the parting rod acting through a spring box 3 on one side of a swing arm c carrying a roll bearing and directly on the other side of the arm, a hand wheel turning a screwed sleeve being provided for adjusting the parting rod and through it the roll. According to the invention, the upper part of the parting rod is screw-threaded and engages the internally screw-threaded sleeve o. The sleeve o is surrounded by a rotary sleeve q having a handle r pivoted on a pin s in the sleeve q the handle having a lug t which, in the full-line position shown, engages a castellated nut fixed on the upper end of the sleeve o, whereby the sleeve o may be turned. The handle r may be pivoted to the dotted-line, disengaged position. The parting rod is in two axially-aligned parts, the upper part carrying a collar v which bears on the arm c, and the collar v carrying an extension w off the rod u, the extension passing through the arm c and supporting the spring box. Indicators 5 and 6 are provided.