baber/WOPTO huggingface dataset:
Patent GB-738013-A (GB)
Title: New nitrogen containing heterocyclic compounds
Inventor: SHORT WALLACE FRANK
Filed: 1952-10-15
Abstract: The invention comprises compounds of the formula <FORM:0738013/IV (b)/1> and their production from 2-acylamino-diphenylamines of the formula <FORM:0738013/IV (b)/2> by heating with a phosphorus oxide, halide or oxyhalide; R is hydrogen or an alkyl, aryl, aralkyl or heterocyclic radical, R1 is alkyl, aryl or aralkyl and R2 is hydrogen, lower alkyl or aralkyl; and nuclei X and Y may carry substituents which are not affected by the reaction conditions, e.g. alkylsulphonyl, halogen, nitro or alkoxy.  The reaction may be carried out in an inert solvent such as nitrobenzene, but this is unnecessary if R2 is hydrogen.  Examples show the production of the following substituted 2 : 3 : 6 : 7 - dibenz - 1 : 4 - diazepines (the nature of the Group R2 in the starting material being indicated):-1 - methyl - 31 - nitro - 5 - phenyl (R2=methyl), 1 - methyl - 31 - nitro - 5 - p - nitrophenyl (R2=methyl), 1 - methyl - 211 : 31 - dinitro - 5 - phenyl (R2=H and methyl), 211 : 31-dibromo - 1 - methyl - 5 - phenyl (R2=H and methyl), 211 - methoxy - 1 - methyl - 31 - nitro - 5 - phenyl (R2=H), 211 - methoxy - 1 : 5 - dimethyl-31-nitro (R2=H, acylamino compound prepared in situ), 211-methoxy-1-methyl-31-nitro (R2=H, acylamino compound prepared in situ), 1 - methyl - 5 - phenyl (R2=H), and 1 : 5-diphenyl (R2=H). Diphenylamines.-The following are made by direct acylation:- 2-benzoylamino-N-methyldiphenylamine, 2 - benzoylamino - 4 : 41 - dibromo-diphenylamine, 2-benzoylamino-4 : 41-dibromo - N - methyl - diphenylamine, 2 - benzoylamino - 41 - methoxy - N - methyl - 4 - nitro - diphenylamine, 4 - nitro - 2 - (p - nitrobenzoylamino) - diphenylamine, 2 - benzoylamino - 4 : 41 - dinitro - diphenylamine, 2 - benzoylamino - 4 : 41 - dinitro - N - methyl - diphenylamine and 2 - benzoylamino - triphenylamine. The following are made by N-methylation:-N - methyl - 2 - nitro - diphenylamine, 2 - amino - 41 - methoxy - N - methyl - 4 - nitro - diphenylamine, 2 - amino - 4 : 41 - dinitro - N - methyl - diphenylamine, 2 - benzomethylamino - 4 : 41 - dibromo - N - methyl - diphenylamine, 4 : 41 - dibromo - N - methyl - 2 - nitro - diphenylamine, 2 - benzomethylamino - N - methyl - 4 - nitro - diphenylamine, 2 - benzomethylamino - 4 : 41 - dinitro - N - methyl - diphenylamine and N - methyl - 4 - nitro - 2 - (p - nitrobenzomethylamino) - diphenylamine. The following are made by reduction of the corresponding nitro compounds:- 2 - amino - N - methyl - diphenylamine, 2 - amino - 4 : 41 - dinitro - diphenylamine, 2 - amino - 41 - methoxy-4 - nitro - diphenylamine, 2 - amino - 4 : 41 - dibromo - diphenylamine and 2 - amino - 4 : 41 - dibromo - N - methyl - diphenylamine.  4 : 41 - Dibromo - 2 - nitro - diphenylamine is made by condensing aniline with 2 : 5-dibromonitrobenzene and brominating the product.
Patent GB-982588-A (GB)
Title: Highly chlorinated aryl sulphides and processes for their manufacture
IPC: C07D327/08
Filed: 1961-07-17
Abstract: The invention comprises compounds of formulae <FORM:0982588/C2/1> and <FORM:0982588/C2/2> wherein m and n are each 0, 1 or 2; q is 1 or 2; x and y are each 3, 4 or 5; p is 0 or 1 and Z is O, S, Se or Te, the sum of each of the pairs n and x, m and y, and q and y being at most 5. Such compounds are manufactured by chlorinating benzene, toluene or xylene (or a chlorinated derivative thereof) in the presence of sulphur, a sulphur halide or a mixture thereof.  Alternatively, compounds of the second of the above formulae may be manufactured by effecting the same reaction on a starting material of formula <FORM:0982588/C2/3> or a chlorinated derivative thereof.  The chlorination reactions are preferably effected in presence of a Friedel-Crafts catalyst such as AlCl3.  Examples describe the preparation of compounds of the second formula wherein p=o, or p=1 and Z=O or S, and compounds of the first formula.
Patent GB-1278039-A (GB)
Title: Discontinuity processing apparatus for automatic curve tracing system
IPC: G06K11/02
Filed: 1970-05-29
Abstract: 1278039 Automatic tracing apparatus IWATSU ELECTRIC CO Ltd 29 May 1970 [31 May 1969] 25972/70 Heading G4H In automatic tracing apparatus in which the pattern to be followed is traced by a series of closed path scan, I, II (Fig. 8) the intersection a 1 , a 2 , a 3  of the scan path and curve determining the next scan position, when a discontinuity 50, 55 is found in the pattern the scan path size is increased to perform a larger scan III. This is effected by counting the number of intersections found in a scan in a counter (128, Fig. 7, not shown) which controls the scan drive mechanism to enlarge the scan size when only one intersection is found. When a second intersection is found the scan size is then gradually reduced. When with an enlarged scan a further point on the curve is not detected the curve is assumed to have terminated.
Patent GB-1049157-A (GB)
Title: Apparatus for handling workpieces
Inventor: BUECHTING KARL ERNST
IPC: B21B39/22
Filed: 1963-07-01
Abstract: 1,049,157. Manipulators. UNITED ENGINEERING & FOUNDRY CO. June 17, 1964 [July 1, 1963], No. 25980/63. Heading B3M. Manipulating apparatus for workpieces in a reversing rolling mill comprises two heads 14 and 15 which are normally situated on either side of a workpiece table 11 (Fig. 1 (in plan), not shown), the head 15 incorporating workpiece tilting fingers. The head 14 is mounted on beams 16 and 1-7 which are slidable relative to supports 21 and 22, while the head 15 is slidably adjustable on the beams 16 and 17 of head 14. The heads are each movable from their retracted position clear of table 11, Fig. 2, to an operative position (in dotted lines) by means of a rotatable pinion 32 which co-operates with a rack 33 integral with the beam 16, the beams being supported on rollers 23 and 24. The pinions for both beams are driven from a motor 35 through shafts 36. Head 15, and its supporting frame 38 and 39, is movable relative to head 14 by means of piston-cylinder assemblies 48 and 49, each assembly having an overload device for protecting the heads if an excess pressure is exerted on them. Movement of the frames 38 and 39 is synchronized by a shaft 51 connecting the pinions on two shafts 42, the pinions co-operating with racks on the beams 16 and 17. Fingers 61, Fig. 3 (not shown), arranged in vertical slots in the head 15, are raised by means of levers 63 and 64 and a piston-cylinder assembly 66 in order to tilt a workpiece. A shaft 64 operatively connects all the fingers 61 for simultaneous movement.
Patent GB-1179189-A (GB)
Title: Electric Motor.
Inventor: URBAN SEIGFRIED
IPC: G04C3/16
Filed: 1967-06-07
Abstract: 1,179,189. Electric motors. S. URBAN. 7 June, 1967 [10 June, 1966], No. 26204/67. Heading H2A. An electric motor, used, e.g. in a clock drive or magnetic-tape equipment, comprises a rotor which includes a speed regulating mechanical oscillating structure which co-operates with an electrical drive controlled in time with its mechanical oscillations to produce magnetic flux pulses for driving the rotor, such structure including at least one resilient swing arm 7 having a free oscillator end on which the pulses act periodically during the rotor rotation. As shown, the drive comprises stationary control and energizing coils 14, 15 mutually coupled through a two-state circuit element, e.g. a transistor 16 or a relay or a switching diode, and the rotor comprises two such arms 7 mounted via a shaft 5 in two plates 1, 2 and carrying at their free ends U-shaped soft Fe brackets 10 bearing permanent magnets 11 whose vertical axes 18 are radially offset from those of the coils whereby after the rotor has been started by a lever 20 and gearing 22, 23 the magnets follow a circulatory path 19 at a constant speed dependent upon the resonance frequency of the arms 7 which is selected by regulating weights 13. In modifications, the arms oscillate at higher harmonics than the fundamental frequency shown, there are different numbers of arms, the arms are planar and swing parallel with the shaft, the coils and magnets lie radially outside the arms, the magnets are stationary and the coils are secured to the arms, and the magnets are disposed centrally and pole shoes are secured to the arm ends. The motor may also be used as a pulse or frequency generator by the addition of at least one further coil within the path 19.
Patent GB-504830-A (GB)
Title: Improvements relating to electric filters
IPC: H03H7/01
Filed: 1937-09-29
Abstract: 504,830. Impedance networks. ALLGEMEINE ELEKTRICITATS-GES.. Sept. 29, 1937, Nos. 26424 and 26425. Convention dates, Sept. 29, 1936 and Sept. 30. 1936. [Class 40 (iii)] A separating filter is formed by connecting the input terminals of two complementary symmetrical filters in series or parallel, and a constant input impedance is obtained by removing impedances present in the input, this being equivalent to adding a negative impedance. One of the constituent filters may be an antimetrical filter, i.e. a filter whose input and output impedances when multiplied together give a constant resistive impedance. The filters B, B<1> of Fig. 1, have their iriput connected in series, the impedances A, A<1>, being removed to give the separator of Fig. 2. Other examples are shown. In general, the separator is designed according to the Cauer methods. The hyperbolic cotangent of the propagation constant, coth g, for each of the component filters, and the image impedance R of the separator are chosen. The image impedance of filter B is then R /coth g<1> and the, image impedance of filter B<1> is then R /coth g, while the impedance to be removed is R/coth g.coth g<1>. Thus, the image impedance and coth g for each filter is determined and the filter can be designed to have the requisite impedance to be removed occurring in series or shunt, according as the filters are to be connected in series or parallel.
Patent GB-1140011-A (GB)
Title: Bottom closure for straining tanks
IPC: B65D90/62
Filed: 1966-06-14
Abstract: 1,140,011. Discharging wet grain. NOOTER CORP. 14 June, 1966 [21 Oct., 1965], No. 26553/66. Heading B8S. Wet grain from straining tank T discharges past doors 7, each door being pivoted at 9 and controlled by two fluid cylinders 16 via rods 15 and chains 14, the chains at 12 wrapping round the door 7. The doors 7 are closed by the cylinders 16 and fall open under gravity when the cylinders are released.
Patent GB-804376-A (GB)
Title: Method of and apparatus for making abrasive tools
IPC: C25D1/00
Filed: 1955-09-16
Abstract: 804,376. Electrodeposition. FERRA.ND, M. Sept. 16, 1955 [April 18, 1955], No. 26588/55. Class 41. [Also in Groups XXII and XXIII] A method of producing an abrasive tool in the form of an endless belt of metal containing layers of even thickness of abrasive particles, e.g. diamond particles, comprises the step of depositing successive layers of the particles 11 on each surface portion of a moving endless belt 6 and simultaneously and continuously depositing bonding metal, e.g. nickel, by electrodeposition at a rate such that particles deposited on the belt 6 forming one layer are completely enclosed in metal before the next succeeding deposition of particles occurs on that portion of the belt. The belt 6, which has a flexible cathode connection 7 secured to it, is of an electrically conductive material which is readily parted from the nickel and passes round two narrow rollers 3, 4 in the direction A, B, the rollers being supported in an electrolyte container 1 having two anodes, one being shown at 12. Diamond particles are delivered from a hopper 10 having an adjustable outlet valve 9, the setting of this, and the speed of the belt 6, determining the thickness of each layer of particles on the belt 6. Excess particles fall into a receptacle 15. The side of the belt 6 contacting the rollers 3, 4 is varnished to prevent electrodeposition. A plating bath may comprise, in grams per litre, nickel sulphate 250, nickel chloride 50, boric acid 35. The pH is 5, the temperature 50 C. to 60 C., and the current density 8 amps. per square cm.
Patent GB-607783-A (GB)
Title: Improvements in the rotors of magneto electric machines
IPC: H02K1/27
Filed: 1945-10-12
Abstract: 607,783. Machines with permanent magnets. BOHLI, J. Oct. 12, 1945, No. 26714. [Class 35] A permanently magnetized rotor has laminated poles 2 energized by a transversely magnetized ring 1a, soft iron spacing rings 3 being incorporated in the pole stacks. It is stated that these rings also act as magnetic shunts reducing strong fields, flux leakage and armature reaction. Non-magnetic end members 1, e.g. of aluminium, support the assembly.
Patent GB-1070393-A (GB)
Title: Improvements in or relating to epicyclic transmission systems
IPC: B60K17/28
Filed: 1964-06-29
Abstract: 1,070,393. Change-speed gear. INTERNATIONAL HARVESTER CO. June 29, 1964 [June 29, 1963], No. 26721/64. Heading F2D. To prevent or cushion shock in a planetary overdrive gear for a motor car on disengagement of a main driving clutch, with concomitant inhibition of simultaneous ratio shift in an associated main change-speed gear, a reaction member of the planetary gear is rotated slowly in reverse. As shown, an engine shaft 1 drives through a main clutch 17 to a shaft 1a fast with a carrier 2 journalling planet pinions 3. A ring gear 4 fast on an output shaft 5 is meshed by the planet pinions 3, which also mesh a sun gear fast upon a sleeve 6. A brake 7 is applied to establish over-drive, direct drive being established through a ratchet clutch 8 on brake disengagement. A second ratchet clutch 9 in parallel with the brake 7 is driven slowly backwards from the engine shaft 1 through a reduction gear train 12-16. When direct drive is established, over-run of the car disengages the ratchet clutch 8, and engine braking is obtained through the ratchet clutch 9. On disengagement of the main clutch 17a with the engine driving the car and overdrive established, the shaft 1a, &c. tends to rotate momentarily in the reverse direction as the load is released. Accordingly, the ratchet clutch 8 engages, transmitting a sudden load. However, reverse rotation of the sleeve 6 through the gearing 12-16 either prevents or cushions the development of a shock in the planetary gearing. In one modification, the shaft (1), Fig. 9 (not shown), is driven through a double clutch (23), and a power take-off (22) is provided in the train to the ratchet clutch (9), &c. In another modification, the power takeoff (22), Fig. 10 (not shown), is driven through a friction slip coupling (25).
Patent GB-887485-A (GB)
Title: Device for holding a rope, wire, or similar line to a prop
IPC: D06F53/00
Filed: 1957-08-26
Abstract: 887,485. Clothes-props. KEENAN, M. Aug. 25, 1958 [Aug. 26, 1957], No. 26803/57. Class 52(5) [Also in Groups XXIII and XXV] A device for holding a clothes line to a prop comprises a rod 1 secured at one end of the prop and bent spirally at the other end to form two bights A, B the line being engaged in the bight A and the prop raised and turned to engage the rope in the bight B also. The bight B is preferably at right angles to the bight A and the lower end of the rod is pointed and offset at 1a, enabling the point to be driven into the prop, or is formed as a screw.
Patent GB-1390942-A (GB)
Title: Stencil duplicating machine drum
IPC: B41L13/06
Filed: 1972-06-16
Abstract: 1390942 Stencil-printing apparatus HEYER Inc 16 June 1972 [6 Oct 1971] 26820/73 Divided out of 1390941 Heading B6C An internally-inked stencil-carrying cylinder 44 comprises an apertured cylindrical surface 162, a mesh 166 and an inking pad 168 with an inner surface having a nap extending into the mesh 166. Preferably the outer surface of the pad is of a fine weave nylon or silk material. The pad is held on to the surface of the cylinder by spring, tension exerted from within the cylinder, and extends over a segment only of the cylinder. Capillary action of the fibres of the nap in the mesh helps the flow of ink from the apertures 164 in the cylindrical surface into the pad, and the mesh prevents the pattern of the apertures being reproduced in a variable ink content of the pad.
Patent GB-602383-A (GB)
Title: Improvements in or relating to die-stocks for cutting conical or cylindrical screw threads
IPC: B23G5/04
Filed: 1945-10-13
Abstract: 602,383. Screwing die-heads. RICKENMANN, A. Oct. 13, 1945, No. 26834. [Class 83 (iii)] In a die-stock for cutting conical or cylindrical threads automatic adjustment of the dies is effected by the return movement of a sliding housing. Dies 6 are housed in a frame 8, and unidirectional work gripping jaws 11 in a frame 13, Fig. 1, the two frames being bolted to opposite ends of a body 1 on which is rotatably mounted an operating member 2 having a worm-thread 36 and carrying a spring-loaded ratchet 32, Fig. 4 engaging circumferential teeth on the body 1. A casing 3, Figs. 1 and 3, has journalled therein a spindle 37 having a worm 371 engaging the thread 36, and a gearwheel 38 meshing with another gear-wheel 22, Fig. 2, mounted on a spindle 21. This spindle is threaded, to move axially a block 24 engaging one of the dies whereby the dies move each other to vary the diameter D. In a similar manner the work-gripping jaws are moved to accommodate varying sizes of work. According to the setting of the ratchet 32, so either left or right-hand threads will be cut by the dies, the oscillatory movement of the member 2 moving the assembly against the stationary work in one direction to cut the thread, whilst in the reverse direction the jaws 11 grip the work giving relative motion between the body assembly and the operating member 2,  causing the dies to be opened for the next part of the cutting operation. For cutting cylindrical threads, the spindle 37 is displaced axially to disengage the die opening drive between the worm threads.
Patent GB-813082-A (GB)
Title: Pedal-actuated water tap
IPC: F16K21/12
Filed: 1957-08-26
Abstract: 813,082. Valves. TRUBERT, R., and TRUBERT, M. Aug. 26, 1957, No. 26869/57 Class 135. A pedal-actuated valve including a telemotor link between the pedal and the valve, comprises a valve body 1, Fig. 1, having an inlet 2 and an outlet 3 disposed at right angles to each other and a valve plug 12 urged towards a removable seat 4 by a spring 19. The plug 12 includes a stem 11 having a lost-motion connection with a piston 8 slidable in a bore 7 forming one end of the link 22 connected at its other end to a cylinder 28, Fig. 2, slidably mounting a piston 30 operable by a floormounted pedal 38. An adjustable needle valve 40 controls the rate at which the valve closes once it has been opened on depression of the pedal, which operation forces liquid through a hole 20 in the body 1 into the space behind the piston 8. A piston ring 9 seals this space against leakage and also controls a port 26 admitting liquid to the link 22. The port 26 is only open when the piston 8 is fully retracted and the plug 12 in its closed position. The piston 30 is formed with a shoulder limiting its upward movement and a bore 34 closed by a purging valve 33.
Patent GB-1218052-A (GB)
Title: Improvements relating to securing an electrical connector in a mounting panel
Inventor: FURNESS GRAHAM
IPC: H01R13/74
Filed: 1968-06-06
Abstract: 1,218,052. Spring clips. STANDARD TELEPHONES & CABLES Ltd. 6 June, 1968, No. 26938/68. Heading E2B. A clip for securing an electrical connector 11 within a slot 31 in a mounting panel 30 comprises a rectangular plate from one edge of which a first flap 26 extends, the flap being intended to engage the front surface of the panel, a second flap 24 which extends from one part of the edge of a rectangular hole 21 in the plate and which is intended to be disposed on the underside of the panel and two arms 27 on opposite sides of the plate which arms extend from the plate at an acute angle thereto towards the two flaps and which in use lodge against the back of the panel the hole 21 being intended to engage a boss 10 on the end face of the connector and the second flap having a lug 25 for engaging the boss so that the boss is disposed between the end of the lug and the opposite edge of the hole from that from which the second flap extends. As shown two of the clips are used to secure the connector in place the clips being disposed at opposite ends of the slot and each engaging an individual boss.
Patent GB-426139-A (GB)
Title: Improvements in and connected with ventilators
IPC: F23L17/02
Filed: 1933-09-30
Abstract: 426,139. Ventilators. MUSGRAVE, J. L., and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, London. Sept. 30, 1933 No. 26954. [Class 137] A ventilator so constructed that air is admitted to an enclosure on the windward side and extracted on the leeward side, comprises a hollow trunk A containing partitions B, B <1> the tops of which are formed with shoulders supporting discs D<1> ... D<3> of increasing diameter. The lowermost disc D is fixed round the top of the trunk A, the discs D<1>, D<2> have openings of decreasing diameter, and the top disc D<3> closes the top of the ventilator. The midfeathers a<5> cause a downward air flow on the windward side and an extraction of air on the leeward side, perforations in the midfeathers assisting the extraction effect owing to the induction caused by air passing through the holes.
Patent GB-830648-A (GB)
Title: Improvements in or relating to braking governors
IPC: H04M1/315
Filed: 1958-08-21
Abstract: 830,648. Centrifugal governors. SIEMENS & HALSKE A.G. Aug. 21, 1958 [Sept. 10, 1957 (2)], No. 26954/58. Class 57. [Also in Group XXXIV] In a braking governor for a telephone dial, brake shoes 6, 7 formed of a synthetic plastic material and provided with a heavy insert 12 at the end remote from the shoe pivot 4 or 5, are displaceably mounted on a rotatable cross member 3 mounted on a spindle 1 driven by a pinion 2 meshing with a driving gear-wheel 11; the shoes being arranged to spread apart during rotation of the cross member 3 to a degree dependent on the speed of rotation so as to frictionally engage the interior surface of a brake drum 13<1>. The brake shoes 7, 6 are provided with respective brake bosses 14, 15 which are integrally formed as projections with the plastic brake shoes and the spreading apart of the brake shoes 6, 7 dependent upon the speed of rotation of the cross member 3 is resisted by a torsion spring 8 which is coiled around the spindle 1, without touching it, and which is provided with bent-portions each engaging one of the slots 9 of the brake shoes 6, 7.