baber/WOPTO huggingface dataset:
Patent GB-884562-A (GB)
Title: Railway locomotive transmissions
Inventor: EVERNDEN HAROLD IVAN FREDERICK
IPC: F16H47/07
Filed: 1959-05-01
Abstract: 884,562. Hydro-mechanical variable-speed gear. ROLLS-ROYCE Ltd. April 25, 1960 [May 1, 1959], No. 15047/59. Class 80 (2). [Also in Group XXXI] A split-torque transmission comprises hydrodynamic torque converters 4, 5 and a fluid coupling 11a driven in parallel by a driving shaft 1, the torque converters driving the ring gear 9 of an epicyclic gear 9a the planet carrier of which is fast with an output shaft 17 and the sun gear of which is selectively stationable by a brake 18 and drivable by the coupling 11a. Under starting conditions the coupling is emptied, the brake 18 is applied, and drive is transmitted through the torque converters and the epicyclic gear. The converters are of the type having free-wheel mounted stators, and when the converters have reached the coupling stage the fluid coupling is filled and the brake 18 is released. Instead of using converters having free-wheeling stators, converters with fixed stators may be used if the turbine drives its output shaft through a free-wheel and this output shaft can be directly driven. In a modification the epicyclic gear provides two speeds, in this case a second planet carrier is fast with the output shaft and carries planets meshing a selectively stationable ring gear and also meshing a sun gear fast with the ring gear 9. The output shaft may drive a constant-mesh reversing gear, and the transmission may be employed in a railway locomotive. The construction has the advantage that the torque converters and the coupling may be comparatively small and correspond to those available for other purposes.
Patent GB-1025412-A (GB)
Title: Resilient tooth of a harrow
IPC: A01B35/24
Filed: 1964-04-13
Abstract: 1,025,412. Harrows. A. ANDERSENS STAALVAREFABRIK A/S. April 13, 1964 [May 4, 1963], No. 15098/64. Heading A1B. A harrow is provided with a resilient tooth comprising a soil working portion 4 clamped to a leaf spring 9 and a second leaf spring 16 which reaches down to the back of the portion 4 and is guided by members 5 of a clamp 6, a third leaf spring 18 being provided and formed with a portion 22 which may rest on the back of the spring 16.
Patent GB-1035994-A (GB)
Title: Trunnion roll type cable reel takeup stand
IPC: B65H54/54
Filed: 1963-04-17
Abstract: 1,035,994. Reel carriages. GENERAL CABLE CORPORATION. April 17, 1963 [June 20, 1962], No. 15103/63. Headings B8G and B8M. A reel stand comprises a carriage 36 or 40 on each side of the reel, with each carriage consisting of a truck mounted for horizontal movement on rails 42. As described, an electric cable after having passed through paper taping stands 16, Fig. 1 (not shown), is taken up by a reel 30 supported on and rotated by trunnion rollers 72 mounted in yokes 62 which can be raised on rails 58 by screws 64. The reel can thus be reciprocated sideways and raised vertically to keep the unwound portion of the cable in a horizontal straight line through the stands 16 during the winding of successive layers of cable. The relative positions of the carriages are varied by a screw 50, which engages a threaded shaft in truck 39 and is rotatably driven by a reversible electric motor 52 in truck 41, until the flanges of the reel engage rollers 84 supported in slotted shafts 83, Fig. 3 (not shown). The shafts 83 are adjustably mounted in yokes 62.
Patent GB-650501-A (GB)
Title: Improvements in and relating to artificial hands
IPC: A61F2/58
Filed: 1948-06-04
Abstract: 650,501. Artificial hands. STEEPER, Ltd., H., and PHILPOTT, W. J. June 4, 1948, No. 15125. '[Class 81(ii)] In an artificial hand adapted to be opened by control of the Wearer, one or more fingers have pivoted middle joints, whereby the upper part of such finger may be bent independently of the lower part, the arrangement being such that the upper part may be locked in one of a plurality of positions against opening, movement from a bent position to the normal position being effected by release mechanism automatically actuated when the hand is opened to a predetermined degree. As shown in Fig. 1 the upper part 30 of an artificial finger is pivoted on a spindle 31 carried by a lower part 32 and when the finger is bent by applying an external force it is retained in that position by means of pawl 33 which engages, a recess 37. in the part 30. Release is effected by movement of the part 32 through a control means, (not shown), thus causing a buffer 42 on the end of lever 41 to impinge against the inner surface of the palm, further movement of the part 32 causing the pawl 33 to be tripped by lever 41, the part 30 then returning to the .position shown in Fig. 1 under the force of spring 38. A number of recesses 37 may be provided on the part 30. Specifications 650,500 and 650,502 are referred to.
Patent GB-1276784-A (GB)
Title: Slide rule
Inventor: DOGIGLI JOHANNES
IPC: G06G1/04
Filed: 1970-03-31
Abstract: 1276784 Slide rules ITAB DOGIGLI KG 31 March 1970 15215/70 Heading G4B In a slide rule the slide is located in a channel in the body of a rule by the interaction of magnetic inserts in one part with magnetic or magnetizable inserts in the other, the inserts in at least either the slide or body being covered by a layer of non-magnetizable material. The cursor may be held on the body in a similar manner. In the embodiment shown a slide 3 consists of non-magnetizable layers 17 and 16 and strip 15 with magnetic inserts 42<SP>1</SP>, 43<SP>1</SP> filling holes 40<SP>1</SP>, 41<SP>1</SP> and magnetic inserts 44<SP>1</SP>, 45<SP>1</SP> movable in elongated holes 20<SP>1</SP>, 21<SP>1</SP>. The bottom of the slide-receiving channel in body 1 is formed from a strip 48 of magnetizable material and is covered with a plastics layer. The base of the slide-rule is also provided with a layer 19 of non- magnetizable material. The limited free movement of inserts 44<SP>1</SP>, 45<SP>1</SP> allows for easy fine adjustment of the slide. In other embodiments completely fixed or movable magnetic inserts are provided beneath the channel and a magnetizable strip is located in the slide (Figs. 1, 3), magnetic inserts are located in the sides of the channel (Fig. 2) and two slides are magnetically located in a common channel (Fig. 5). Cursor 4<SP>1</SP> has two guiding faces 25, 25<SP>1</SP> and magnetizable inserts 26, 27 perpendicular to them, another embodiment (4) is similar but has only one guiding face. Cursor 4<SP>11</SP> has magnetizable elements 26<SP>1</SP>, 27<SP>1</SP> parallel to the guiding faces. Grooves 9 and 12 are provided for the use of a non-magnetizable cursor. The scale markings are preferably stamped on to the lower surface of plastics strips 8, 11 and 17 which are accurately located on the body by cross-pieces 6, 7 and on the slide by a cross-marking (not shown). The magnetic or magnetizable materials employed may be iron alloys, ferrites or mouldable synthetic resins containing suitable powders.
Patent GB-593851-A (GB)
Title: Improvements in or relating to the manufacture of acrylonitrile
IPC: F23N5/08
Filed: 1945-06-15
Abstract: Acrylonitrile is prepared by reacting acetylene with hydrogen cyanide in the presence of an aqueous solution containing a cuprous salt and mercury, for example in the form of a mercury compound.  An aqueous acid medium is usually employed containing, for example, cuprous ammonium chloride, hydrochloric acid and mercuric chloride.  A solution of cuprous ammonium and cuprous chlorides may be used which is practically saturated at the reaction temperature of 80 DEG  C., and contains 1-5 per cent mercuric chloride, 3-5 per cent hydrochloric acid to maintain a pH of 1-2 and, preferably, 5-10 per cent copper powder.  This may be heated to 80-95 DEG  C. and acetylene dna hydrogen cyanide, desirably in a molar ratio of 3-6 : 1, passed in at a feed rate which may exceed that giving maximum yield in absence of mercury. An inert gas may also be supplied to increase agitation. Acrylonitrile distils as an azeotrope with water. By leading the products to a water-cooled separator connected at the top to two condensers in series, the first cooled to -10 DEG , the second to -70 DEG  to -60 DEG  C., the lower aqueous layer separating may be returned while the acrylonitrile is led off.  Examples give comparative results using catalyst solutions containing 1.25, 2.5 and 5 per cent mercuric chloride, and in the absence of mercury compounds.
Patent GB-623970-A (GB)
Title: Improvements relating to frequency-responsive electric relays
IPC: H01H51/32
Filed: 1947-06-11
Abstract: 623,970. Electromagnetic relays. ROTAX Ltd., and HAMILTON, R. F. G. June 11. 1947, No. 15359. '[Class 38(v)] A frequency-responsive relay has two windings 7, 8 acting in opposition and respectively connected through rectifiers 9. 10 to two resonant circuits 2, 4 and 1, 3 which are arranged in parallel and are turned to different frequencies. The terminals 5, 6 are connected to a variable speed A.C. dynamo so that as the speed, and therefore the frequency, increases, one winder, say 7, will reach its maximum current first and will overpower the other winding 8. As the frequency continues to increase, the current in winding 7 will decrease, while that in winding 8 increases on its way to its maximum, till eventually winding 8. As the frequency continues this particular frequency, the polarized armature 11 moves to the dotted position operating contacts 12. A contact 15 also cuts out a resistance 18 to prevent "hunting."
Patent GB-1145740-A (GB)
Title: Acylated amino phenols and their use as antioxidants
Inventor: COUPLAND KEITH
IPC: C09K23/00
Filed: 1966-04-06
Abstract: 1,145,740. Acylated aminophenols. DISTILLERS CHEMICALS & PLASTICS Ltd. 28 Feb., 1967 [6 April, 1966], No. 15385/66. Heading C2C. [Also in Division C5] The invention comprises compounds of the formula where R<SP>1</SP> and R<SP>2</SP> are alkyl, aralkyl, alkenyl or aralkenyl radicals, R<SP>3</SP> is an alkyl, aralkyl or aryl radical, and X is a phenyl radical optionally substituted by alkyl, alkoxy or halogen or a naphthyl or biphenyl radical or a radical of the formula where Y is an arylene radical. The compounds are prepared by condensing a disubstituted catechol of the formula with an aromatic amine or diamine followed by acylating the amino group(s). Further substituents may be present in the aromatic rings.
Patent GB-1241127-A (GB)
Title: Heating apparatus
IPC: G03G15/20
Filed: 1969-03-25
Abstract: 1,241,127. Heating apparatus. INTERNATIONAL BUSINESS MACHINES CORP. March 25, 1969 [April 18, 1968], No. 15470/69. Addition to 1, 224, 200. Headings G2A and G2H. In a copying machine as described in the parent Specification, in which a copy sheet moving along a path 25 Fig. 2 after developing is heated by an infrared unit 37 moving between positions 50, 50<SP>1</SP> at a speed slower than the sheet, the unit 37 may be retracted to a safety position 50<SP>11</SP> where a heat shield 150 protects the copy sheet. During operation, a rotating cam 54 pivots a lever 121 which, through a latch 122, pivots a crank 67 to move pulleys 72, 73, thus moving a cord 75 fixed at points 89 to the unit 37. If a fault occurs, e.g. the copy sheet is not detected at the output, a solenoid 131 swings the latch 122 anti-clockwise disengaging its step 124 from a lip 125 on the crank 67 thus allowing the crank to be pivoted by a spring 69 to move the unit 37 to position 50<SP>11</SP>. The mechanism is re-set on further rotation of cam 54. A step 126 in the latch 122 engages the lip 125 and pivots the crank 67 anti-clockwise where it is held by a member 134 abutting a pin 147 while the latch 122 pivots down again so that its step 124 can re-engage the lip 125. The heating unit may be used to evaporate solvent from and/or dry sheets in liquid developing apparatus.
Patent GB-529737-A (GB)
Title: Improvements in or relating to thermostats
IPC: G01K5/68
Filed: 1939-05-25
Abstract: 529,737. Thermostats. MAIN WATER HEATERS, Ltd., PETTERSSON, H. E., and CHAPMAN, F. W. May 25, 1939, No. 15595. [Class 64.(ii)] A composite metal strip formed from metals of different co-efficients of expansion is constructed so that flexure along one part due to heating takes place in a different direction, and to a different extent to that produced along another part. This may be done in the case of a bimetallic strip by having one metal continuous throughout the length of the strip and the other applied to opposite sides of the first metal in an alternating manner-or, as shown, the bi-metallic strip may be twisted through 180 degrees about its longitudinal axis. The thermostatic element is bent into the form of a U, one limb 10 having a forked end 11 disposed between conical abutments 12, 13 on the stem 14 of a disc valve 15. The other limb 16 is secured to a part 19 of the valve casing. The limbs 10, 16 are twisted at 21, 22 in opposite directions. The bend is protected by a guard plate 20, and heat applied to the bend tends to bring the limbs together, while heat applied to the ends tends to separate the limbs. Should the element be overheated, instead of straining the device by bringing the abutment 13 against the valve casing, an outward deflection at the ends of the limbs takes place to prevent this. When the heating flame is extinguished, the valve will be moved to a closed position, an intermediate position beng shown in Fig. 6.
Patent GB-588812-A (GB)
Title: Improvements in fire-grates
IPC: F24B13/02
Filed: 1941-12-04
Abstract: 588,812. Furnace grates. NIE, J. DE., and KNOL, H. D. M. Dec. 4, 1941, No. 15619. [Class 51 (i)] In a shaking grate of the type in which the bars are curved and can be oscillated or rotated about their centre of curvature, the grate is built up of one or more elements, Fig. 3, comprising flanges 2, carrying axles 4 connected by a transverse bar 3 from which the grate bars 5 project like-the teeth of a comb. The grate bars 5, Fig. 1, of the left hand unit are made longer than the others so that small oscillations may be given by the levers 6, 7, or the elements may be turned through 90 degrees to dump the contents of the grate.
Patent GB-1198964-A (GB)
Title: Method of Preparing Fuel Plates for a Nuclear Reactor
IPC: G21C21/02
Filed: 1969-03-25
Abstract: 1,198,964. Nuclear fuel. UNITED STATES ATOMIC ENERGY COMMISSION. 25 March, 1969 [2 May, 1968], No. 15685/69. Heading G6C. [Also in Division C1] A plurality of fuel plates for a nuclear reactor is made simultaneously by successively adding accurately weighed increments of urannia or mixed urania-plutonia powder to a graphite die which is oriented vertically, levelling the powder to a sufficient extent to permit the addition of another increment after each such addition, and finally compressing the charge at a pressure of above 4000 p.s.i. and a temperature of 1400-1625‹ C.
Patent GB-1282697-A (GB)
Title: Electrical apparatus
Inventor: MITCHELL LEONARD AUGUSTINE
IPC: G06F1/18
Filed: 1971-05-19
Abstract: 1282697 Electric couplings INTERNATIONAL BUSINESS MACHINES CORP 19 May 1971 [17 July 1970] 15758/71 Heading H2E [Also in Division H1] In an electrical apparatus, the conductive frame which supports the screening doors and panel is coated with a conductive paint 21, Fig. 6, and the door or panel 1 provided with a conductive finger stock 60 to make contact between the paint and the door. A further metal conductive strip may be riveted (Fig. 1) or stuck (Fig. 3) to the frame to improve wear and contact. The strip may be copper or plated steel or an epoxy adhesive 32 and conductive adhesive 31 may be used. The finger stock may be riveted to the painted frame (Fig. 5) and engaged by a strip 53 attached to the door. The conductive strip may be in the form of an embossed conductive tape (Fig. 7, not shown) with a conductive adhesive layer. The paint may include conductive epoxy material, e.g. a rosin modified phenol formaldehyde type resin. A typical solvent system comprises by weight: Acetone 13% Methanol 3% Ethanol 55% Methyl isobutyl ketone 8% Toluene 8% Water 7% Mesityl oxide 5% and the conductivity is provided by addition of carbon granules (size 10-1000‹ A.) (10% by weight of the final mixture). Cadmium, tin or nickel may be used to plate the conductive strips and in the arrangement of Fig. 3 cooling fluid may be circulated within the frame.
Patent GB-1440165-A (GB)
Title: Method and apparatus for obtaining the cyclic code of a binary message
IPC: G06F11/10
Filed: 1974-04-09
Abstract: 1440165 Deriving cyclic codes COMPAGNIE HONEYWELL BULL 9 April 1974 [13 April 1973] 15775/74 Heading G4A The cyclic code of an n bit message is derived by (1) splitting the message into a whole number S of q bit words plus a residue r such that n=Sq+r (r may be zero), (2) calculating the cyclic code of the group of S words, (3) checking whether r is zero and (4) if r is not zero forming the cyclic code of the group and the residue. In the embodiment of Fig. 3 the original message is held in register RM and split by means N into S words (the number S being held in counter Cs) and a residue r, a counter Cr holding the value r. Initially the first word K 1  is fed into shift register R D  and subsequently shifted q times, the value of the binary digit emerging from the register being examined at each shift and if it is "1" the contents of the register are exclusively ORed in a circuit A 2  with the contents of register RA 1  holding the generating polynomial for the cyclic code. The result is fed back into the register. After q shifts the second word K 2  is exclusively ORed in circuit A 1  with the contents of register R D  and the shifting process repeated. The contents of counter C s  are decremented as each word is entered. The operation is repeated until all S words have been processed. If there is a residue it is then exclusively ORed in a circuit A3 with the contents of the register R D  which are shifted r times and at each shift if a binary 1 emerges from the register the contents of the register are exclusively ORed in circuit A 4  with the contents of a second register RA 2  also holding the generating polynomial. The cyclic code for the whole message is then available at outputs S T . Aflow drawing for this embodiment is given in Fig. 2 (not shown). In a modification (Figs. 4, 5, not shown) for each word of the message the cyclic code is read out from a look up table (T1) and the shift register then shifted two places. After all the complete words of the message have been processed the residue is exclusively ORed with the contents of the shift register (R D ) and the result fed to both the shift register and to an additional register (R T ). The shift register is then shifted 2-r places and a table (T2) accessed for the cyclic code of the q elements nearest the output of the register, the retrieved word being exclusively ORed with the contents of the additional register (R T ) after it has been shifted r places and the result is fed to the shift register. The tables are constructed by storing the results of exclusively ORing all possible input numbers with the coefficients of the generating polynomial. A flow drawing and suitable apparatus for this operation are given in Figs. 6, 7 (not shown). The completed cyclic code is transmitted with the original message and may be used to detect transmission errors.
Patent GB-621799-A (GB)
Title: Improvements in and relating to ovens for baking bread or the like
IPC: A21B1/08
Filed: 1946-05-24
Abstract: 621,799. Bakers' ovens. POINTON, J. E., and BAKER PERKINS, Ltd. May 24, 1946, Nos. 15782 and 31342. [Class 51 (ii)] In a baker's oven of the type disclosed in Specification 526,670, steam admitted into one chamber is prevented from diffusing into the other by withdrawing atmosphere under suction at the rear of the oven, from either the second chamber or from both of said chambers. A single aperture 9, Fig. 1, located in the rear wall has a pivoted arcuate damper 10 controlled by a hand wheel 10a so that in the mid-position openings 9a and 9b are provided, or alternatively the aperture may be totally closed by the valve in its mid-position. The single aperture may be replaced by a double aperture and a flue 12 is connected either to a chimney or a fan and has a break-draught damper 13. In one modification the single aperture is controlled by a double section arcuate valve in which the separately controlled sections slide over one another and in another an additional dampered aperture is provided in the roof towards the rear of the oven. In a further modification, Fig. 5, in which the extracted atmosphere is recirculated, a transverse conduit 9c with slot 9d controlled as above, delivers atmosphere gases either to a chimney 17 or an inlet conduit 16 or both under control of the fan 12a and dampers 17a and 18 respectively. According to the first Provisional Specification the height and longitudinal position of the transverse conduit 9c and the angular position of the slot 9d may be adjustable.
Patent GB-457489-A (GB)
Title: Improvements in or relating to reciprocable valves
IPC: F24H9/20
Filed: 1935-05-30
Abstract: 457,489. Valves. CHAPMAN, F. W., FORSHAW, A., and OMNIA MANUFACTURING CO., Ltd., 48, Grosvenor Gardens, Westminster. May 30, 1935, No. 15785. [Class 135] The gas valve 35 of a gas-heated water heater controls the passage of gas from the gas inlet 36 to the burner jets 13 and is actuated by an operating rod or stem 29. A resilient metal bellows 22 is secured in a fluidtight manner between the stem 29 and the valve casing to prevent leakage and projects into a water chamber in communication with the water supply at 24 to the heater so that the pressure of the supply opens and maintains open the gas valve 35 which, if the supply fails or is cut off, closes under the action of gravity assisted by the resilience of the bellows 22. The lower end of the bellows 22 which faces the water inlet 24 is provided with a relatively large disc 23 on which the water impinges when flowing so that a pressure due to the velocity as well as the static pressure of the supply acts upon the bellows 22. Specification 457,490 is referred to.
Patent GB-1127298-A (GB)
Title: Turbo-compressor
IPC: F04D29/10
Filed: 1967-04-06
Abstract: 1,127,298. Axial-flow compressors. FRIEDRICH UHDE G.m.b.H. April 6, 1967 [April 6, 1966], No. 15809/67. Heading F1C. [ Also in Division F2] In a rotodynamic compressor comprising a housing 1 having two compressor chambers with rotors 3, 4 therein for simultaneously and separately compressing two gas streams e.g. in an ammonia synthesizing process, the compressor chambers are separated by an intermediate chamber 9 connected to the compressor chambers through labyrinth shaft seals 6, 7, and the pressure in the intermediate chamber is maintained lower than that in each of the compressor chambers. Thus leakage from either compressor chamber through its seal 6 or 7 does not flow to the other compressor chamber but instead is drawn off through pipe 14, liquid/gas separator 15, pipe 16 and pressure regulator 17. The formation of solid deposits in the intermediate chamber may be prevented by injecting through a pipe 18 a suitable solvent liquid, e. g. water or an aqueous ammonia solution.