baber/WOPTO huggingface dataset:
Patent GB-481804-A (GB)
Title: Improvements in brake control mechanism for aircraft
IPC: G01P1/08
Filed: 1936-09-17
Abstract: 481,804. Aircraft braking systems. BENDIX AVIATION CORPORATION. Sept. 17, 1936, No. 25321. Convention date, Sept. 18, 1935. [Class 4] In a hydraulic brake system for aircraft master cylinders, each operatively associated with a brake pedal carried by a rudder stirrup, are pivotally mounted on a supporting member to which the stirrups are also independently pivoted. Rudder-control stirrups 18, 20, Fig. 2, are pivotally mounted on lugs welded to a cross-shaft 30. Connection to the rudder is by cables attached to projections, 32, 34. Shafts 36, 38 are rotatably mounted in stirrups 18, 20 and carry pedals 40, 42 and levers 44, Fig. 3. Each lever 44 is connected to rod 56 of a piston 54 working in a master cylinder 50 or 52 pivotally connected at its upper end to a lug 46 or 48 secured to shaft 30. Rotation of the brake pedals forces fluid out of the master cylinders through conduits 15 to the wheel cylinders. The cylinder is replenished from a reservoir through conduit 60 and check valve 62. A byepass 64 leads from the conduit side of valve 62 to a port 66 so arranged that when piston 54 is in the " off " position fluid may flow freely from conduit 60 into the master cylinder and thence through conduit 15 to the brake cylinder thus obviating effects due to changes in temperature or to other changes in volume. The arrangement of the stirrups and the links composed of the cylinders and piston rods is not quite a parallelogram arrangement since arm 44 is slightly longer than the distance between the pivot axes of the cylinder and the stirrup so that the pedal swings slightly toward the pilot relative to the stirrup as the latter is pushed forward and vice versa. Means for holding the brakes applied comprise a toothed member 90 fixed to the brake pedals and pawls 92 pivoted on the stirrups and normally held clear of members 90 by springs 94. To latch the brake a pull is exerted on a cable 96 connected to pawl 92 by a spring 98 of greater force than spring 94. In a modification, Fig. 4, check valve 62 is omitted and to prevent drawing in of air at the wheel cylinders piston rod 156 is connected with lost motion to a two part piston 154, 155. The working cylinder comprises a sleeve 152 inserted in a casting 170. Sleeve 152 is provided with a port 166 communicating with a source 160.
Patent GB-610019-A (GB)
Title: Improvements in or relating to method of polishing an article having a surface of nickel or of a non-ferrous nickel alloy
IPC: C25F3/22
Filed: 1944-12-18
Abstract: 610,019. Electrolytic polishing of nickel or a non-ferrous nickel alloy. STEVENS, A. H. (Battelle Memorial' Institute). Dec. 18, 1944, No. 25364. [Class 41] An article having a surface of nickel or a non-ferrous nickel alloy is polished by anodic treatment in a solution containing 33-85 per cent phosphoric acid, 0.1-38 per cent CrO3 and 13-42 per cent water, the total acid concentration being 58-87 per cent, the percentages further being such as to be represented on the diagram within the area bounded by the line ACB and the straight line BA. A preferred range of proportions is 46-85 per cent phosphoric acid, 0.1-29 per cent CrO3 and 13- 34 per cent water, the percentages being such as to be represented within the area bounded by the line AD, the straight line DE and the straight line EA. Chromic acid (CrO3) may be replaced by stoichiometrically equivalent weights of soluble chromates and bichromates; similarly ortho-phosphoric acid may be replaced by equivalent quantities of meta- or pyro-phosphoric acids. Small quantities of additional ingredients introduced by the operation of the process are not objectionable. With current density 125-250 amps. per sq. ft. and bath temperature 100-155‹ F. the treatment takes 4-12 minutes. Higher and lower temperatures and higher and lower current densities may be employed.
Patent GB-1237541-A (GB)
Title: Prevention of bronzing in photographic silver halide material
Inventor: WILLEMS JOZEF FRANS
IPC: G03C1/35
Filed: 1968-05-28
Abstract: 1,237,541. Prevention of bronzing in photographic silver halide materials. GEVAERTAGFA N.V. May 13, 1969 [May 28, 1968], No.25451/68. Heading G2C. A process for the preparation of photographic images comprises hot-glazing or drying at elevated temperature an imagewise exposed, developed and fixed light-sensitive photographic material comprising at least one silver halide emulsion layer, characterised in that said photographic material when being hot-glazed or dried at elevated temperature is in working contact with a compound of the following general formula or a tautomeric form thereof or a salt of such tautomeric form: wherein R is alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, aralkyl, substituted aralkyl or aryl or substituted aryl. The compound defined above may be incorporated in the light-sensitive silver halide emulsion layer and/or in a waterpermeable layer present at the same side of the support as the light-sensitive emulsion layer or in at least one of the baths for processing the photographic material such as the developing bath, the fixing bath, an additional hardening bath, and a bath which contains surface-active compounds. The object of the present invention is to prevent the silver-containing image from losing density (i.e. bronzing or plumming) or hot-glazing or drying at elevated temperature. The compounds defined above also reduce fog without influencing the sensitivity and gradation to any noteworthy extent, when incorporated in the material.
Patent GB-1433570-A (GB)
Title: Apparatus for rotating a hoop
IPC: B21F37/00
Filed: 1974-06-10
Abstract: 1433570 Rotating hoops MONSANTO CO 10 June 1974 [11 June 1973] 25611/74 Addition to 1415790 Heading B3E Apparatus for rotating an annular bead 233, Fig. 3, comprises grippers (200). Fig. 1 (not shown), which include movable jaws 220 to exert gripping pressure on the bead, supports 204, 204a, for the grippers having a recessed curved track, a device for moving the grippers on an endless path into and out of engagement with the bead and a device 209 for separating the jaws to insert and remove the bead. The grippers are mounted on an endless chain 201, Fig. 2, driven by a drive shaft 202 and sprocket 202a. Track plates 204, 204a are attached to a spacer block 207, and rods 206 pass through the plates and exert damping pressure on the grippers through damping plates 205, 205a. The width between the clamping plates is adjustable by a nut 211 and bolt 212. The grippers are guided through a curved path conforming to an arc of the bead by a groove track in the plates 204, 204a. Springs 216 between the track plates and clamping plates provide a self-centering system for the plates. The grippers come together under the influence of pressure exerted by an air cylinder 209 on the plates 205, 205a, which overcomes the effect of compression spring 211. The grippers are moved apart by the moving apart of the plates 205, 205a by action of the air cylinder 209. The grippers are positioned on alternate sides of the chain to exert pressure at alternate areas on opposite sides of the bead surface. Each gripper has a neoprene insert 220 to grip the bead.
Patent GB-1417464-A (GB)
Title: Method of introducing catlayst into a polymerization vessel
IPC: B01J4/00
Filed: 1973-05-30
Abstract: 1417464 Polymerization vessels; catalyst inlet devices therefor SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 30 May 1973 [2 June 1972] 25638/73 Heading B1F [Also in Division C3] A polymerization vessel is provided with a device for introducing catalyst into the vessel, the device comprising a first conduit, which has an exit within the vessel, and a second conduit which extends at least as far as the exit of the first conduit and which forms, with the first conduit, an annular passage surrounding the exit of the first conduit. At least part of the second conduit, which preferably extends into the vessel a distance equal to at least one inside diameter of the second conduit beyond the exit of the first conduit, may be provided with a lining of a material having a low coefficient of static friction, for example polytetrafluoroethylene, which lining may extend into the vessel beyond the exit of the second conduit. As illustrated in the Figure, the top 5 of a polymerization vessel is provided with a device comprising a first conduit 1, which is provided with a valve 2 for controlling addition of catalyst and with a side tube 3 for supply of flushing fluid, and a second conduit 4 which is provided with a side tube 6 for supply of flushing fluid through the annular passage 11 and with a polytetrafluoroethylene lining 9 having an obliquely cut end 10 which is beyond the second conduit end 8 which, in turn, is beyond the first conduit end 7.
Patent GB-1379343-A (GB)
Title: Error checking circuits
IPC: G06F11/16
Filed: 1973-05-30
Abstract: 1379343 Testing logic circuits INTERNATIONAL BUSINESS MACHINES CORP 30 May 1973 [30 June 1972] 25829/73 Heading G1U An arrangement for testing a logic circuit Fig. 6 designed to evaluate a function F (x 1 , x 2 , ..., x n ) of n # 3 independent binary variables, comprises a "1 cover" logic circuit designed to evaluate a function C 1  (x 1 , ..., x n ), a "0 cover" circuit designed to evaluate a function C 0  (x 1 , ..., x n ), and a further logic circuit designed to evaluate, when the arrangement is connected, as shown in Fig. 6, to the circuit under test, the function E = FC 0  + FC 1 , the functions C 1  and C 0  comprising, respectively, prime implicants selected from the functions F and F. A prime implicant of a function is defined by reference to the complete Karnaugh table of the function, and is a monomial corresponding to any set of two or more row- or column-wise adjacent ones in the table. In the example given, Fig. 2, which shows a circuit for evaluating the function F = 123 + 124 + 123 + 124 the Karnaugh map is shown in Fig. 3 and the prime implicants can be seen to be:-  P1 = 123 P2 = 124 P3 = 123 P4 = 124 P5 = 34 According to the Specification every possible fault in the circuit for evaluating F is tabulated Fig.4 (not  shown) together with the prime implicant that would be affected by the fault, (for example in Fig. 2, if the input Gl to gate 35 is stuck at 0 due to a defect in the gate then prime implicants P1 and P5 are affected by effectively being stuck at 0 also), and then the prime implicants are listed in their order of importance with respect to the number of faults that each is affected by. Prime implicants of F and of F are then selected, in their order of importance, to form the functions C 1  and C 0 , and it is usually possible, according to the Specification to detect 90% of the possible faults with only an additional 30% of hardware. Moreover, since the functions C 1  and C 0  should never both be 1, a check on their operation is possible, and by exclusive oring their outputs with  that from the circuit under test automatic correction of detected errors is possible.
Patent GB-1116346-A (GB)
Title: Agricultural cultivator attachment
IPC: A01B39/16
Filed: 1964-06-23
Abstract: 1,116,346. Agricultural implements. W. W. HALLY. 23 June, 1965 [23 June, 1964], No. 25833/64. Heading A1B. A machine for cultivating between plants comprises a caliper frame having a leg 3 attachable to a tractor the other leg 2 being moved by means of a hydraulic ram 5 to adjust the position of a rotary tool 22 which is driven from the tract power shaft through gear boxes 29, 33, the tool assembly being provided with tubes 14 which slide on members 13. In a modification the tool is driven by a hydraulic motor.
Patent GB-844685-A (GB)
Title: Improvements in transistors and methods of manufacture thereof
IPC: H01L29/00
Filed: 1956-08-27
Abstract: 844,685. Transistors. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 27, 1956 [Aug. 29, 1955], No. 26079/56. Class 37. A transistor comprises a PNI or NPI body with an ohmic connection to each of its three zones. Such a device may be made by pulling a seed crystal from a germanium melt to which a donor or acceptor impurity is added at some stage in the growth. A PI or NI junction body with the dimensions shown in Fig. 1 is cut from the resulting ingot and an N or P type zone 5 (Fig. 4) formed in the surface of the P or N zone by an alloying process. Ohmic connections 7, 8, 9 are then made to the P, N and I zones. The resistivity of the middle zone (3), which should be not much thicker than the minority carrier diffusion length, is less than 10 ohm. cm. whereas the intrinsic region 2 has a resistivity as high as possible, i.e. about 50 ohm cm. An alternative method of making such a transistor is to heat a metal such as Pb or Au, doped with donor and acceptor impurities having different rates of diffusion e.g. As and In in contact with a surface of a body of intrinsic Ge. The resulting diffusion gives rise to a PNI structure on account of the more rapid diffusion of the arsenic. Ohmic connections are made to the zones as before. A third method of making the device is to heat a body of intrinsic Ge at 700C. in the vapour of As to form a region 18 (Fig. 7) of N type conductivity completely surrounding an intrinsic core 17. A P type layer 20 is then formed by alloying or deposited by electrolysis on part of the upper surface of the body and an ohmic contact 19 made on another part of the same surface by electro-plating or soldering. The surface of the body is then covered with an acid resistant coating 21 and the body etched to expose the intrinsic material as shown in Fig. 9. After removal of the resistant coating ohmic connections are made to the N and I regions and to the contact 19.
Patent GB-608764-A (GB)
Title: Improvements in and relating to umbrellas and sunshades
IPC: A45B25/18
Filed: 1945-10-06
Abstract: 608,764. Riveted joints. CATHCART, S. D., and KENDALL & SONS, Ltd. Oct. 6, 1945, Nos. 26096/45, 29820/46 (divided out of 31963/45) and 29202/46. [Class 83 (iv)] [Also in Group VII] Figs. 1, 2 and 4 show an umbrella cover 1 which has a series of bushed eyelets 3 through each of which passes a solid rivet 9 which also passes through a transverse, passage 7 in a socket member 5 having a friction fit over the end 6 of a rib 4 of the umbrella. The eyelet 3 is seated on a flat face 13 of a groove 12 of the socket member. In the construction shown in Fig. 8, the socket element of the connection is formed by the end 15 of the rib 4 and the member 16 riveted to the cover is formed with a plug end to fit into the socket element. In the construction shown in Fig. 9, a bifurcated rivet 24 is used, the free ends 25 being turned back,to lie in an arcuate groove 26 in the socket member 5. In the construction shown in Fig. 10. the cover 1 is riveted to the ribs 4 by rivets 27 passing through the eyelets 3 and through holes 29 in the flattened ends 28 of the ribs, the ends of the ribs being swaged over at 30. The members 5 and 16 are of partly cylindrical and partly conical form with a ball end, but they may be round or square-ended, cylindrical or hexagonal members and may be of metal, if desired plated, or coloured or anodized, or they may be made of plastic material. The bushed eyelets 3 are of aluminium or aluminium alloy anodized to a wide variation of colours or may be made of or coated with coloured plastic material; the heads of the rivets may also be so coated.
Patent GB-364139-A (GB)
Title: Improvements in stamping or printing and recording mechanism
IPC: B41L45/00
Filed: 1930-09-02
Abstract: 364,139. Printing-machines. ADDRESSOGRAPH, Ltd., Grange Road, Willesden Green, London, SCOTT, J. R., 3, Cross Street, WILSON, K. M., 38, Longford Place, Victoria Park, LASCELLES, W. J., 24, Grangethorpe Drive, Levenshulme, and PETERSON, M. F., 39, Egerton Road South, Chorlton-cum-Hardy, all in Manchester. Sept. 2, 1930, No. 26139. [Class 100 (ii).] Addressing - machines ; franking - machines ; printing-surfaces ; counting-apparatus.-Franking, addressing, and like printing-machines are provided with a sectional auxiliary die or printing-device comprising a movable section adapted to be depressed during an impression operation by the action of the impression member, and a counting-mechanism operatively associated with the movable die section. The auxiliary die may be composed of a fixed section 2 in the plane of the main printing bed, and a movable section 1 normally held above this plane by a spring 12 but adapted to be brought into the same plane by the action of the platen. Depression of the member 1 rotates a shaft 11 carrying a lever 13 connected by a link 18 to the operating lever of the counting-mechanism. Should the spring 12 fail, the die section 1 falls by gravity below the plane of the main bed.
Patent GB-279065-A (GB)
Title: Cooling arrangement for electric motors driving multi-stage force pumps
IPC: H02K9/19
Filed: 1927-10-04
Abstract: 279,065. Maschinenfabrik Oerlikon. Oct. 18, 1926, [Convention date]. Pumping-machines, multi-stage.-An electric motor driving a multi-stage pump is constructed between two pressure stages and the motor is cooled by allowing part of the medium pumped to flow through the motor from the higher to the lower pressure stage. In the centrifugal twostage oil pump shown, oil enters the first stage at 1 and leaves the second stage at 9. Part of the oil is allowed to flow into the motor from the rotor 5 of the second stage through a slot 7 and returns to the diffuser 3 of the first stage through a slot 8.
Patent GB-275822-A (GB)
Title: Improvements in projectiles
IPC: F42B12/38
Filed: 1926-10-21
Abstract: 275,822. Blanarovits, A., and Hovora, P. Oct. 21, 1926. Projectiles. - Relates to projectiles charged with a material or materials adapted to produce smoke or flame to indicate the trajectory of the projectile, and consists in delaying the appearance of the smoke or flame for a predetermined time by means of a preliminary charge of material producing no flame or smoke, which must first escape before the smoke or Same-producing material can pass out. In the form shown in Fig. 1, a charge of beeswax or other fat e<1> first escapes through an outlet e<2>, after which a charge of red phosphorus d<1> escapes through the same outlet, both charges being melted by the heat due to the discharge of the projectile. In a modification, Fig. 2, plugs d and i are melted by the heat of discharge and allow charges of fat f, h to escape, after which a charge of red phosphorus e and a charge of ammonium bichromate or sodium thiosulphate g, which have also been melted, mix together and escape at the bottom of the projectile where they produce a flame. Suitable fats for the charges f, h are beeswax, carnauba wax, Japan wax, and paraffin wax, and these materials serve also for the plugs i. The plugs d are of an alloy of low melting point such as amalgam.
Patent GB-939368-A (GB)
Title: High-octane hydrocarbon mixtures
IPC: C10L1/06
Filed: 1961-07-20
Abstract: A high octane hydrocarbon mixture is obtained by catalytically reforming the starting material, e.g. naphthas derived from Middle East crudes, in the presence of a platinum catalyst to a product of F-I-O octane number of at least 96 separating from this product a fraction boiling between 75 DEG -80 DEG C. and 140 DEG -144 DEG C. and preparing a mixture consisting of 65-79% of this fraction, 1-10% of a component which is itself a mixture of hydrocarbons and boiling between 30 DEG -35 DEG C. and 75 DEG -80 DEG C., and from 20-34% of a component at least 90% of which consists of isopentane.  The two latter components can be separated as fractions of the reformate or be portions of such fractions.  Fractions not used for forming the high octane mixtures can be combined to form a regular grade motor fuel.  Optional ingredients are butane, tetra ethyl- and tetra methyl-lead.
Patent GB-367735-A (GB)
Title: Improvements in and relating to display devices
IPC: A47F3/08
Filed: 1931-09-22
Abstract: 367,735. Displaying. LOMNITZ, A., 115, Bismarkstrasse, Charlottenburg, Berlin. Sept. 22, 1931, No. 26448. Convention date, May 23. [Class 3 (i).] Apparatus for displaying goods &c. comprises vertically moving trays g carried on endless chains &c. e, the whole being mounted on a rotary platform b. Two endless moving tray sets may be provided, disposed at right-angles to one another, and screened from side view by partitions c. Supplementary rotary tables h may be located on the platform b. The apparatus may be arranged in a shop window, and may extend through the floor and ceiling thereof. An electric motor disposed in the base a drives all the members, bevel wheel and sprocket gearing being employed for the chains e, and a friction belt for the tables h.
Patent GB-455107-A (GB)
Title: Improvements in or relating to microphones of the type used in telephone systems
IPC: H04R21/02
Filed: 1935-09-25
Abstract: 455,107. Microphones. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and KAHL, A. R., c/o General Electric Co., Ltd., Stoke, Coventry. Sept. 25, 1935, No. 26534. [Class 40 (iv)] In a microphone in which a main diaphragm responding to the sound vibrations transmits its movements to an auxiliary diaphragm and an electrode member, as described in Specification 371,501, the main diaphragm 1, its case 2 and a spun clamping ring 4 form one unit which is attached by means of a ring 12, internally and externally threaded, to a second unit comprising the auxiliary diaphragm 7, and electrode holder 6 and a cup-shaped member 9 containing the granules. The auxiliary diaphragm is secured to the member 6 carrying the electrode 19 by a washer 11 and nut 10, whilst the main diaphragm 1 is clamped to the diaphragm 7 by a domed washer 23 and nut 21. The electric current passes from the stem 13 of the electrode 18 to the electrode 19 and member 6 and through the nut 10 and washer 11 to the diaphragm 7 and a ring 21 arranged to contact with a spring in the case of the transmitter. The nut 10, washer 11 and holder 6 are of the same material as the diaphragm e.g. aluminium alloy. The large diaphragm may be protected by a silk membrane 3 and may be insulated at its periphery. A thin sheet of silk 20 prevents granules from touching the diaphragm 7.
Patent GB-1423629-A (GB)
Title: Yellow to orange disazo acid dyes for nylon
IPC: C09B31/065
Filed: 1973-06-04
Abstract: 1423629 Disazo dyes E I DU PONT DE NEMOURS & CO 4 June 1973 [8 June 1972] 26547/73 Heading C4P New disazo dyes of formula wherein SO 3 M is meta or para to -N=N-, R 1  is H, CH 3 , OCH 3  or Cl, R 2  and R 3  are independently H, CH 3  or OCH 3 , R 4  and R 5  are independently H, Cl or CH 3  but only one can be Cl, R 6  is CH 3  or C 2 H 5  and M is H or an alkali metal, ammonium or substituted ammonium cation are prepared by condensing disazo dyes of the above formula but wherein is replaced by OH, with propylene oxide or butylene oxide in aqueous alkaline medium. The dyes are preferably used to colour synthetic polyamide fibres in yellow to orange shades. Reference has been directed by the Comptroller to Specification 1,330,383.
Patent GB-241939-A (GB)
Title: Improvements in or relating to means for heating and suppyling feed water to feed space accumulators of steam generators
IPC: F22D3/04
Filed: 1925-10-23
Abstract: 241,939. Siemens - Schuckertwerke Ges., (Assignees of Simmermacher, W.). Oct. 24, 1924, [Convention date]. Feed-water, heat ing. - Boiler feed water before enter ing a hot-water stor age tank b, Fig. 1 is heated to a con stant temperature by surplus boiler steam in a mixing device c comprising rows of opposite inclined nozzles k, Fig. 3, which are opened in turn by a slide m operated by a piston acted upon by steam or other pressure varying in accordance with the steam consumption. The pressure of the feed-water supplied to the mixing device by a pump e is maintained constant, and the boiler steam pressure being approximately coastant, the respective opposite nozzles are so designed that the water is heated to the required constant temperature. The feed-water may be first heated by exhaust steam in a mixing device similar to that described.