baber/WOPTO huggingface dataset:
Patent GB-1112976-A (GB)
Title: Process for the production of organo-phosphorus compounds
Inventor: KELLERMAN DAGOBERT
IPC: C07F9/08
Filed: 1965-06-16
Abstract: Additives for lubricating oils comprise compounds prepared by reacting white phosphorus oxygen, and a hydrocarbon compound containing at least one phenolic hydroxyl group, or a hydrocarbon compound containing more than one alcoholic hydroxyl group, or a hydrocarbon compound containing at least one thiol group, in a non-aqueous reaction medium at a temperature of up to about 60 DEG C. until substantially all the elementary phosphorus has been converted into esters of oxyacids of phosphorus in which the average overall oxidation state is substantially 4.  Specified substituted hydrocarbon compounds are phenol, cresol, hydroquinone, ethylene glycol, polyethylene glycols, glycerol, sugars, chlorinated propylene glycol, 1,4-butane diol, 1-methyl-1,3-pentane diol, decane-thiol, dodecanethiol, t-butylmercaptan, isobutylmercaptan and thiophenol.ALSO:Organo-phosphorus compounds are prepared by reacting white phosphorus, oxygen (preferably provided as a stream of air), and a hydrocarbon compound containing at least one phenolic hydroxyl group, or a hydrocarbon compound containing more than one alcoholic hydroxyl group, or a hydrocarbon compound containing a thiol group, in a non-aqueous reaction system at a temperature of up to about 60 DEG  C., until substantially all the elementary phosphorus present has been converted into esters of oxyacids of phosphorus in which the average overall oxidation state of the phosphorus is substantially 4. The reaction is preferably effected in the presence of an inert organic solvent, e.g. ethyl acetate or butyl acetate, in which the reactants and products are both soluble, and in which the phosphorus and oxygen are at least slightly soluble.  Suitable starting materials are phenol, cresol, hydroquinone, ethylene, glycol, polyethylene glycols, glycerol, sugars, chlorinated propylene glycol, 1,4-butane diol, 1-methyl-1,3-pentane diol, decanethiol, dodecanethiol, t-butylmercaptan, isobutylmercaptan and thiophenol. The products may be used as additives for motor fuels, lubricating oils, plastics and paint, as flame-proofing agents, and as intermediates for the production of organophosphorus compounds.
Patent GB-361927-A (GB)
Title: Improvements in switching arrangements for automatic telephone systems
IPC: H04Q3/00
Filed: 1930-08-27
Abstract: 361,927. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Aug. 27, 1930, No. 25589. Convention date, Aug. 28, 1929. [Class 40 (iv).] In a register-marker system in which the lines are grouped into a number of exchange sections which are organized as independent exchanges but are not necessarily at different places, the whole number is recorded on a local register R1 which if necessary controls the extension of the call to another section, and, over marking wires ML, controls the marker GR of that section. In the system described, each section has 200 lines and connections are completed by the called party's line switch S which hunts for the link FL to which the calling party's line switch S (or the incoming junction line switch CAS, BAS, ACS, ABS, &c.) has made connection. Recording number. Line relay LR1 makes a driving circuit for line switch magnet ADR1 which is interrupted, when an idle link is reached, by LY1 which operates in series with SAK provided the register set is idle. Impulse relay RI in the latter energizes RT1 which energizes DRO, to move the sequence switch SO off-normal so that dialling tone is sent back, and the holding magnets SMO, SMH .. SMU of the sequence switch and the registers RSH .. RSU. Establishment of local call. At the end of the hundreds digit a temporary circuit is made by the dialling relays. RT2 and its slave RT3 for AR1 which locks up and if the call is local energizes GA11 in the marker GB1. GH1 is energized also if the hundreds digit is odd. When the units digit has been received, marking impulses are sent with the aid of AR3, AR2, RT4, to the hundreds, tens, and units relays EH1, OH1, EHT1, OHT1, MR<1>1. If the subscriber is idle his line relay LR<1>1 starts his line switch which is stopped on the calling link by LY<1>1 which is operated over the d wire in series with SAM which replaces SAR by STR to connect up the feed coil MS and release the responder. If the subscriber is busy the responder remains connected up and sends back busy tone until the calling party clears. Establishment of external call. In this case one of a number of relays FSR is energized instead of GA11 after the first digit. FSR starts the finder ACS1 of the junction going to the wanted exchange section, and when the calling link is found LYR1 starts the line switch ACS3 in search of a local link FL3 in the distant section. LYR3 stops ACS3 and energizes ER3 to disconnect the outgoing parts of the link. FBR which is energized in series with LYR1 energizes GA31 which extends the marking circuits from the responder R1 to the marker GR3 of the distant section. The wanted party's line switch hunts for the link FL3 under control of LY3 which pulls up in series with SAM of the link FL1 over circuit 42. The responder is released as in a local call. Release. When the calling party hangs up, LR1 disconnects LY1 and STR falls and then in the case of external calls LYR1, LYR3, ER3.
Patent GB-871384-A (GB)
Title: Improvements in or relating to methods of manufacturing waveguide structures
Inventor: WOOD JOHN DENNY
IPC: H01P5/16
Filed: 1958-08-08
Abstract: 871,384. Waveguides. GENERAL ELECTRIC CO. Ltd. July 20, 1959 [Aug. 8, 1958], No. 25632/58. Class 40(8) [Also in Group XXII] A multiple waveguide operates in a similar manner to that described in Specification 871,383 but is constructed in a different manner. That part of the circuit illustrated in Fig. 1 which lies between the dotted lines 24 and 30 is formed by the structure illustrated in Figs. 2, 5 and 7. The centre four waveguides 43 to 46 are the input waveguides and receive the signals from the part of the circuit of Fig. 1 to the left of line 24. The coupler 8 is formed by two openings 57 (Fig. 5) in the member 48 and the coupler 9 by two openings 56 in the member 47. There are two openings 54 and 55 in the member 49 which form the couplers 10 and 11. The block forming the centre waveguides is encased by further plates 78 to 84, 93 and 94 which form the two outer layers of waveguides 35, 36, 37 and 38 and 39, 40, 41 and 42. The waveguides 36 and 37 are connected to 43 and 44 by openings 90 and 91. There is a similar opening between waveguides 40 and 45 but not between 41 and 46. The couplers 21, 25 and 26 are in the outer layer of the assembly and are formed for example by the opening 103 in the common wall of the guides 35 and 36. A rod 92 passes through the waveguides 35 and 38 and into this are screwed studs 116 which form terminals for rectifiers which are placed in the holders 108. Reference has been directed by the Comptroller to Specification 822,274.
Patent GB-642513-A (GB)
Title: An improved skirt hanger
IPC: A47G25/48
Filed: 1948-10-01
Abstract: 642,513. Garment hangers. BURNELL, W. A. Oct. 1, 1948, No. 25647. Addition to 624,293. [Class 52 (v)] The skirt-hanger described in the parent Specification is modified in that its base plate a is off-set centrally to provide a recess b within which is mounted a plate to hold the supporting hook f. The plate is also formed with recesses h where the leaf springs g contact the plate thus preventing the skirt from slipping. In modifications various forms of projections for preventing slipping are described.
Patent GB-601495-A (GB)
Title: Improvements in parting-off tools
IPC: B23D45/04
Filed: 1945-10-03
Abstract: 601,495. Sawing-machines. OSMOND, Ltd., A. & S., and OSMOND, A. W. Oct. 3, 1945, No. 25723. [Class 145 (ii)] In a machine of the kind in which a cutting disc 20 and its driving motor 10 are carried by a platform 9 movable about a pivot 8 to bring the disc into and out of engagement with work pieces on a base 5, the base is provided with an adjustable stop 23 to limit the downward movement of the platform and with an arcuate bracket 24 to which the platform may, if desired, be secured in an adjusted position by screw means 25. The platform is provided with adjustable fences 6.
Patent GB-806538-A (GB)
Title: Organosilanes
IPC: C07F7/18
Filed: 1956-08-23
Abstract: The invention comprises the compounds hexaphenoxy disilyl benzenes, useful as heat transfer liquids.  The ortho-, meta- and para-isomers and mixtures thereof are included.  They may be prepared by reacting hexachlorodisilyl benzenes with a slight excess of phenol, preferably at elevated, e.g. reflux, temperatures.  A hydrogen chloride acceptor, such as ammonia, pyridine or a tertiary amine may be added, or the HCl may be removed by a stream of inert gas.  An example describes the preparation of a mixture of the meta- and para-isomers. The viscosities of the compounds decrease on heating.
Patent GB-970397-A (GB)
Title: Apparatus for treating the inside surface of hollow closed bodies
IPC: C23G3/00
Filed: 1961-07-17
Abstract: <PICT:0970397/C6-C7/1> Apparatus for treating the inside of a hollow, closed body with a gas vapour or liquid comprises a closed housing having a mounting for the body and provision for maintaining a predetermined temperature within the casing and pipes for circulating the fluid into and out of the body.  As shown, a casing 15 has a mounting comprising a cage, which may be rotatable, for the body 1 and pipes 21, 211 for the inflow and outflow respectively of the treating fluid which may be a pickling gas or a paint, a pivoting packing 24 being provided to allow the pipes to rotate with the body. A further pipe 22 connected to a pivoting packing 25 may be provided for connecting the interior of the body to atmosphere or a vacuum. The temperature within the casing may be maintained at the predetermined value by the admission of a gas from sleeves 26 which gas is extracted by a fan 27.
Patent GB-1189871-A (GB)
Title: Improvements in and relating to Compression Tube Couplings
IPC: F16L19/10
Filed: 1967-06-05
Abstract: 1,189,871. Pipe couplings. HOKE MFG. CO. Inc. 5 June, 1967 [6 June, 1966], No. 25857/67. Heading F2G. In a compression coupling for joining a tube 7 to a body 1, the body has a tube receiving bore which includes, in succession from the outer end, a flared outer end portion 10 for engagement with a corresponding tapered portion of a ferrule 2 which has an edge 4 adapted to bite into the tube 7 when a nut 6 is tightened on to the body, a first cylindrical portion 11 of a diameter F sufficient to allow insertion of a tube whose diameter is at the maximum tolerance limit even if the diameter F is at the minimum tolerance limit, a flared annular step, a second cylindrical portion of a smaller diameter E which will just receive a tube whose diameter is at the minimum tolerance limit, and a shoulder 14. The halfcone angle of the flared annular step is preferably between 12 and 20 degrees, and the shoulder 14 preferably forms an acute angle of between 70 and 80 degrees with the second cylindrical portion. Preferably the coupling includes a second ferrule 3 having a convex outer surface engaging a complementary concave inner surface 16 of the ferrule 2. The diameters E and F and the length of the second cylindrical portion are chosen such that all tubes with diameters within acceptable tolerance limits are accommodated without flaring of the end of the tube and such that the bulging of all tubes in the region of the first cylindrical portion 11 is controlled, whereby a tube previously joined to one body can be subsequently joined to another body without difficulty. Specification 978,343 is referred to.
Patent GB-1433972-A (GB)
Title: Prostaglandin intermediates
IPC: C07D307/935
Filed: 1974-06-11
Abstract: The final substances of the process correspond to the formulae <IMAGE> in which the substituents have the meaning mentioned in Claim 1. The 2S-compound is prepared from the corresponding 2R-compound and the 2R-compound from the corresponding 2S-compound. In this reaction, the H atom in the C-2 hydroxyl radical is replaced by a sulphonyl group and the hydrogen atom in the C-1 hydroxyl radical by an acyl radical. Treatment is then carried out with acetic acid and sodium acetate, mixed monoesters being obtained. Finally, the acyl group is then replaced by hydrogen by hydrolysis. The lactone glycols are useful intermediate compounds for the preparation of pharmacologically active prostaglandins.
Patent GB-1475023-A (GB)
Title: Single pole rotary or slide switch
IPC: H01H19/36
Filed: 1975-06-18
Abstract: 1475023 Mechanical switches WILHELM RUF KG 18 June 1975 [21 June 1974] 25972/75 Heading H1N A rotary or slide switch comprises a switch actuator 1 having a peripheral recess 5, a peripheral projection 6 and an opening 7 to enable the projection 6 to be resiliently deformed, an abutment member 16 positioned adjacent the projection 6 and a contact member 8 having a portion 19 resting in the recess 5 in a first position of the actuator 1, movement of which towards a second position causes the contact member 8 to engage a second contact member 10 and the projection 6 to be resiliently deformed as it moves past the abutment member 16. A snapping noise is produced when the projection 6 moves past the abutment member 16 to provide confirmation to the operator of the completion of the switching process. The contacts 8, 10 are in the form of leaf spings, the contact 10 being movable between projections 12, 14 of the switch housing 3. The switch actuator 1 may be rotatable, as shown, or slidable.
Patent GB-1080255-A (GB)
Title: Current driver for writing information into a magnetic core memory system
IPC: H03K17/64
Filed: 1965-06-21
Abstract: 1,080,255. Transistor switching circuits; circuits employing bi-stable magnetic elements. GENERAL PRECISION Inc. June 21, 1965 [July 20, 1964], No. 26052/65. Headings H3B and H3T. A current driver for a magnetic memory core directs the current from a constant current source selectively in one or other direction through the memory and limits the voltage across the memory during build-up of the current therein. In the circuit shown, to supply a half amplitude pulse to the core X or Y lines connected between 78 and the respective junctions of diodes 36 and 38, one pair of the pairs of transistors 40, 24 and 22, 34 is made conductive according to the required direction of the pulse. The corresponding transistor of an emitter coupled pair 10, 12 is then made conductive and when noise due to the transistor switching has subsided a corresponding one of 26 and 32 is rendered conductive. The base of the conductive one of transistors 10 and 12 is clamped through diode 60 or 62 to the voltage of a Zener diode 58 and, as initially the transistor saturates, this voltage is also applied to the cores. Current builds up until it reaches a value equal to the emitter current of the transistor whereupon the transistor becomes unsaturated and a constant current flows to the cores. Diodes 64 and 67 clamp the emitter voltage of transistors 10 and 12 and diodes 72, 74 and 76 provide a fixed emitter voltage for 26 and 32. Other planes of the core matrix are supplied by further sets of transistors 22, 24, 34, 40 connected to transistors 10, 12, 26, 32 which are common to all planes.
Patent GB-735453-A (GB)
Title: Improved power operated hitch for connecting an implement to a tractor
Inventor: SENKOWSKI ALEXANDER
IPC: A01B63/112
Filed: 1952-10-17
Abstract: 735,453. Agricultural implements. MASSEYHARRIS-FERGUSON (SALES), Ltd., [formerly FERGUSON, Ltd., H.]. Oct. 16, 1953 [Oct. 17, 1952]. No. 26057/52. Class 6 (1). In a power-operated hitch for agricultural implements of the type in which a power unit is under automatic control by the implement acting through a control link of the linkage upon a movable controller co-operating with a spring 7, the control link has a direct operative association with the controller and is connected through a variable leverage mechanism with the spring. As shown the control link is pivotally connected to a rocker 5 which is pivotally connected to a plunger 1 movable against the resistance of the spring and connected with the controller, namely the control valve of a hydraulic power lift unit. The variable leverage mechanism comprises two levers 14, 15 which are pivotally mounted at or near one end and interconnected by a short link 16 with two withdrawable cross-pins. The lever 15 is pivoted to the rocker 5 and the lever 14 is pivotally connected by pins 18 to side lugs on a ring 17 which abuts against the outer end of the spring 7. When the thrust of the implement through the control link increases, the plunger 1 and therefore the control valve of the hydraulic power lift are moved correspondingly. Simultaneously the lever 15 swings counter-clockwise (as viewed in Fig. 2) and acting through the link 16 forces the lever 14 to move clockwise compressing the spring 7. The link 16 may be located at any selected one of the positions A, B and C to vary the effective resistance of the spring 7 to movement of the control link.
Patent GB-1327515-A (GB)
Title: Semiconductor device fabrication
IPC: H01L27/12
Filed: 1971-04-19
Abstract: 1327515 Semiconductor devices RCA CORPORATION 19 April 1971 [7 April 1970] 26140/71 Heading H1K An insulant substrate 10 of, e.g. monocrystal sapphire is coated epitaxially with a layer 12 of, e.g., monocrystal silicon; the substrate being alternatively spinel, diamond or silicon carbide and the semiconductor material being alternatively of germanium, silicon carbide or III-V compounds such as gallium arsenide; and the crystal lattice of the substrate being similar to that of the semiconductor. The semiconductor layer has a specific conductivity characteristic. Portions of layer 12 are etched off using photolitho masking to leave a P-type region 14 or plural such regions. A masking layer 16 of, e.g. oxide of the material is thermally grown thereon (Fig. 4) or a layer of, e.g. SiO 2 , Si 3 N 4  is applied over the whole substrate and etched over photolitho masking to leave covering only on region 14. A layer 20 of N-type monocrystal silicon is epitaxially deposited over the substrate layer 16 and region 14, having a differing conductivity characteristic, and a second region 24 on the substrate is defined by etching over photoresist while leaving layer 16 untouched (Fig. 5). A P channel FET of source 32, channel 34, drain 36 is formed in region 14 covered by insulant layer 42, which may be the original mask layer 16. Source and drain electrodes extend through apertures of layer 42 on which gate electrode 50 is formed; and a N-type FET is similarly formed in region 24; (Fig. 6). An insulant, e.g. SiO 2  or a blocking junction may intervene between regions 14, 24. Differing s./c. materials are usable for each region.
Patent GB-142032-A (GB)
Title: Improvements in or relating to mechanism for the transmission of power
IPC: B60K17/02
Filed: 1919-10-24
Abstract: 142,032. Wade, E. J., and Jacobs, G. W. Oct. 24, 1919. Toothed wheels. - In toothed gearing for use in variablespeed gearing &c., alternate teeth, or the like are cut away at their ends to form enlarged entrance gaps. The leading ends l<1>, k' of the teeth of the wheels l, k are cut away as shown in Fig. 4, one wheel having staggered teeth if required to slide in opposite directions into gear with two separate gear-wheels. Reference has been directed by the Comptroller to Specifications 7682/01, 23165/02, 22386/03, and 114,112, [Class 80 (ii), Gearing, Variablespeed &c.].
Patent GB-751451-A (GB)
Title: Improvements in or relating to devices for mixing fluid streams
IPC: F02C7/22
Filed: 1954-09-10
Abstract: 751,451. Mixing fluids in flow. GENERAL MOTORS CORPORATION. Sept. 10, 1954 [Sept. 30, 1953], No. 26218/54. Class 86. A device 16 for mixing two fluid streams comprises an inlet passage 38 of substantially circular cross-section around which is looped an inlet passage 36 of decreasing cross-sectional area 40, the two inlet passages opening into a common swirl chamber 32. As shown in Fig. 1, the device is incorporated in a gas turbine fuel supply system. The mixing device outlet is connected to the inlet of a centrifugal pump 14 and the pump outlet connected to a fuel control 24 by a conduit 22. Excess fuel is returned to the mixing device 16 through conduit 30 and passage 36 where it joins the main fuel supply from a conduit 10.
Patent GB-600379-A (GB)
Title: Improvements in or relating to reversible tractor vehicles
IPC: B62D49/06
Filed: 1945-10-09
Abstract: 600,379. Agricultural tractors. ODDIE, G. S. Oct. 9, 1945, Nos. 26258 and 26259. [Class 79 (v)] A reversible, steerable, self-propelled tractor vehicle comprises a rigid frame, a centrallydisposed steering column, a seat or seats so that the driver may face the steering column in either direction of travel and means for driving the vehicle up to the same full speed in either direction, and power lift mechanism provided at each end for the attachment of a cultivating implement and by which both implements may be raised together or one may be raised and the other lowered to a regulated working depth. As shown, the tractor is equipped with four wheels and is substantially symmetrical about its centre. It is provided with a variable speed gear box and may be driven in either direction at the same top speed. Steering of each set of wheels is effected by one of a pair of steering wheels 2 mounted on a vertical steering column 1 and which are operated from one of two seats 3, 4 such that the driver always faces the direction of travel. Land cultivating tools 8, 9 are secured at each end of the tractor, only one set of which can be in operation at one time, the other set being retracted. Operation of the tools is effected by power lift means 6, 7, operated by a lever 5 adjacent the steering column. Apart from ploughing the soil a ridging implement may be attached to the tractor for covering the seeds. The tractor may be of the endless track type. In an alternative construction the motor may have one seat rotatably mounted on the steering column and means may be provided so that when the seat is rotated, reversal of the steering and reversal of the direction in which the tractor is driven is automatically effected.
Patent GB-1375779-A (GB)
IPC: H03H9/02
Filed: 1972-06-06
Abstract: 1375779 Acoustic wave devices INTERNATIONAL BUSINESS MACHINES CORP 6 June 1972 [30 June 1971] 26263/72 Heading H3U In an acoustic surface wave device in which pulse information from generators passes from input transducers 40 to output transducers 42, the surface waves are guided by passing between transducers via regions 24 in which the surface wave velocity is less than that in the surrounding region. The substrate of PZT ceramic, or gadolinium molybdate Gd 2  (MoO 4 ) 3  ferroelectric is polarized except in regions 24, disclosed analysis indicating that polarization increases the local substrate stiffness and hence local wave velocity. Method of manufacture.-Deposited layers 44 46 are applied to the substrate and the areas of layer 44 defining the unpolarized regions are removed. For a PZT substrate, the latter is heated and cooled in the presence of a poling potential +V applied between the layers, heat being unnecessary for the ferroelectric whose polarization can be switched at will. Alternatively the whole substrate may be polarized, areas 24 subsequently being depolarized. Transducer pattern masks (not shown) are then applied to layer 44 which, along with all of layer 46 is etched away. Alternatively, the transducers may be formed prior to forming layers of correspondingly reduced area to avoid the transducers. The method is illustrated for a single pair of transducers in Figs. 1-3 (not shown). There may be several hundred devices on a single substrate chip. Resonators can be made.