baber/WOPTO huggingface dataset:
Patent GB-777368-A (GB)
Title: Improvements in apparatus for separating metals
IPC: C22B9/02
Filed: 1954-11-11
Abstract: 777,368. Separating metals of different melting points. BRITISH TRANSPORT COMMISSION, and LEANEY, H. Oct. 14, 1955 [Nov. 11, 1954], No. 32674/54. Class 82(1) [Also in Group I] An apparatus for separating metals or alloys of different melting points comprises a rotary container to which the mixed metals may be fed at a predetermined continuous rate, means for keeping the temperature of the container above the solidification point of the constituent metal or alloy having the lowest melting point and tangential outlets near the bottom of the container one of which is marked by a filter which passes the molten metal to its outlet by centrifugal action while screening the solid metal and passing it on to the other outlet. In the form shown, for separating white metal from borings or swarf, an outer frusto-conical sleeve 3 contains an inner sleeve 4 having a series of spiral grooves on its surface. The outer sleeve 3 is rotated by a gear wheel 25 keyed to an extension, 15 of the sleeve and the inner sleeve 4 is rotated by a gear wheel 26 keyed to a central shaft 18 on the inner sleeve, the inner and outer sleeves rotating at slightly different speeds by virtue of the wheel 26 having one more tooth than wheel 25. A sheet metal jacket 1 filled with refractory surrounds the outer sleeve 3 and thermostatically controlled gas burners or electrical heating elements are fitted within the space between the refractory 'and the outer sleeve. The borings or swarf are fed in at 35 and the molten white metal is passed through a filter 27 to a launder 30 and remaining solid metal through an outlet 28 to a channel 5. The molten white metal and solid' metal are removed from the apparatus through tangential exits (not shown) and scavenging blades 32, 33 for the launder 30 and channel 5 respectively are mounted on the outer sleeve 3.
Patent GB-861938-A (GB)
Title: Tetrahydrofuran carbamates
Inventor: WASSON BURTON KENDALL
Filed: 1958-10-14
Abstract: The invention comprises compounds of the formula  <FORM:0861938/IV (b)/1> (wherein R is alkyl, alkenyl or alkynyl of at most 6 carbon atoms or phenyl and R1 is alkyl of at most 6 carbon atoms) and the preparation thereof by reducing a diethyl alpha-R-alpha-(2-R1-allyl)-malonate to the corresponding diol, ring closing this by treatment with a mineral acid, reacting the 2 - methyl - 2 - R1 - 4 - R - 4 - hydroxymethyl-tetrahydrofuran so formed with phosgene and finally treating the chlorocarbonate obtained with anhydrous ammonia or ammonium hydroxide.  Examples are given, in which 2 - allyl - 2 - methallyl -, 2 - propyl - 2 - methallyl- and 2-phenyl-2-methallyl-1:3-propanediol dicarbamates are isolated as by-products in the last stage of the process.  In the Provisional Specification the carbamates are alternatively formulated as 3-R1-5-R-5-carbamoyloxymethyl-tetrahydropyrans.ALSO:Pharmaceutical compositions contain, as essential active ingredients, compounds of the formula <FORM:0861938/VI/1> (wherein R is alkyl, alkenyl or alkynyl of at most 6 carbon atoms or phenyl and R1 is alkyl of at most 6 carbon atoms).  They may take the form of tablets, pills or capsules, or solutions for oral or parenteral administration.
Patent GB-373552-A (GB)
Title: Improvements relating to jute softening machines
IPC: D01B9/00
Filed: 1931-11-27
Abstract: 373,552. Jute - softening machines. FRASER, G., FRASER, N., and FRASER, J., Westburn Foundry. Arbroath, Angus. Nov. 27, 1931, No. 32897. [Class 120 (i).] In a jute-softening machine of the type including a gable frame carrying a cross-shaft 1 fitted with worms 3, Fig. 1, and side shafts 4 having co-operating worm wheels 5 and provided also with bevel pinions driving corresponding bevel pinions on the fluted crushing rollers, a sliding coupling 6, 8 is arranged between each side shaft 4 and its worm wheel 5 so that endwise movement of the side shaft has no effect on the worm gearing 3, 5. The coupling comprises an internally toothed ring 6, Fig. 2, secured to the shaft 4 and a spur pinion 8 on the shaft 10 of the worm wheel 5.
Patent GB-718357-A (GB)
Title: Improvements in well swabs
IPC: E21B37/10
Filed: 1952-12-30
Abstract: 718,357. Piston packing. WEBBER, J. C. Dec. 30, 1952, No. 32992/52. Class 122(1) [Also in Group XXVIII] Packing for a wellswab comprises a member 27, Fig. 3, deformable downwards to seal the space between the tubular body 10 of the swab and the bore of the well flow-conductor c and, when the pressure difference across the member exceeds its strength, further deformable downwards to allow the passage of fluid. A plurality of conical rings 27, of resilient material such as rubber and of diameter substantially equal to that of the bore of the conductor c, are attached to the body 10 as by moulding. The peripheral edges 28 of the rings are bevelled so that they contact the bore over substantially their whole width when deformed into the sealing position, Fig. 4. The packing may comprise a plurality of separate rings which may be mounted on individual metallic backing sleeves that each extend for a distance less than or equal to the width of the respective ring. The sleeves 57 may overlap the ends of adjacent rings 60, Fig. 8, or each may be in two parts extending from the ends of the ring and secured to the ring as by moulding. Alternatively, the inner peripheries of the rings may be rounded to seat in annular grooves in the body of the swab, or be of dovetail section, Fig. 11, to be sandwiched between metallic rings 82.
Patent GB-1504025-A (GB)
Title: Microwave coupling device
IPC: H03B9/12
Filed: 1975-08-07
Abstract: 1504025 Microwave coupling device HUGHES AIRCRAFT CO 7 Aug 1975 [3 Sept 1974] 33021/75 Heading H3T A microwave coupling device, e.g. for an amplifier, oscillator, frequency multiplier or modulator comprises a metallic ground plane and heat sink 12, Fig. 2a, a dielectric waveguide 10 of, for example, high resistivity silicon, GaAs or ceramic and metallization (e.g. evaporated Cr-Au) 16 for coupling microwave energy to the waveguide. In an aperture 14 in the layer 10 is disposed a solid state device such as an IMPATT, Gunn, PIN or varactor diode 26, Fig. 2b. As described, 26 is an IMPATT diode bonded to a copper base 24 in contact with the ground plane 12. Diode 26 is surrounded by a ring 28 having metallized faces and contact is made to the top surface of the diode by a gold ribbon 32 and a solder preform 29 in contact with a molybdenum cap 18. Cap 18 is connected to metallization 16 by a further gold ribbon 20, Fig. 2a, which may be cruciform. Various shapes for the metallization 16 are described, Figs. 3-6 (not shown). D.C. bias for the diode is applied to the metallization 16 and the ground plane 12.
Patent GB-1515184-A (GB)
Title: Semiconductor device manufacture
IPC: H01L21/8222
Filed: 1975-08-08
Abstract: 1515184 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 Aug 1975 [12 Aug 1974] 33182/75 Heading H1K A self-alignment masking technique for semiconductor device manufacture involves forming a basic mask 4 (Fig. 7) of a first material such as silicon oxide, depositing a layer 14 of a second material such as silicon nitride over the entire mask 4 and within apertures therein, removing the basic mask 4 together with the parts of layer 14 thereon so as to leave islands 14c1- 14c4 (Fig. 8) of the second material corresponding accurately in location to apertures in the basic mask, and providing a further mask 15 (Fig. 9) aligned with features in the basic mask by virture of the location of the islands 14c1- 14c4. In the embodiment an integrated circuit comprising a transistor and a resistor is manufactured using various combinations of the apertures of the basic mask 4 to localize the various processes, the apertures being selectively exposed using a sequence of non-critically aligned photo-resist masks. The layer 14 is applied over the last of these masks 12, which has to be removed, together with the portions of layer 14 thereon, before removal of the basic mask 4. The further mask 15 is, in this case, an oxide passivating layer formed by oxidizing the whole of the semi-conductor surface not covered by the islands 14c1-14c4. Apertures in the layer 15 fix the locations of electrodes.
Patent GB-706907-A (GB)
Title: Improvements relating to stop mechanisms for drawing frames and the like
IPC: D01H13/16
Filed: 1949-12-29
Abstract: 706,907. Stop mechanism for drawing frames and like textile machines. MACKIE & SONS, Ltd., J., and MACKIE, J. P. Dec. 21, 1950 [Dec. 29, 1949], No. 33289/49;. Classes 120(1) and 120(2) In a stop mechanism for a drawing frame or similar textile machine, the relative movement between the two front delivery rollers consequent upon any predetermined reduction in the thickness of a sliver passing between them is utilized to operate a device to stop the machine. As shown, the pressing delivery roller 7 which is carried in a bearing block 9 slidable in a bracket 10 secured to the frame of the machine by a bolt 11, is urged against the driving roller 6 by a compression spring 8 acting on the bearing block 9. Movement of the shaft 7 toward the roller 6 due to a predetermined reduction in the thickness of the sliver is transmitted through the adjustable bolt 15 to a lever 16 fulcrummed at 17 and having at its other end 20 another bolt 21 the head of which bears upon the operating plunger of a switch 23. In a second embodiment, the pressure roller is carried in a bracket pivoted to the machine frame and provided at its lower end with an extension carrying an adjustable bolt the end of which bears against the plunger of the stop switch. In a further embodiment, the shaft carrying the pressure roller is provided with actuating cam means which under normal conditions rotates clear of a blade carried by one arm of a bell crank lever the other arm of which is in contact with a toggle mechanism for operating a switch to stop the machine. When the pressure roller moves towards the driving roller, the cam means contacts the blade thus turning the bell crank lever and tripping the toggle mechanism which operates the stop switch. There is described and shown Figs. 3 and 4 (not shown) a sliver guide for combining two slivers which comprises a plate having two oblique slots therein, one sliver passing down through one slot, across the underside of the plate substantially at right angles to its former direction and up through the second slot which again turns it through substantially a right angle, on to the upper surface of the plate where it meets and combines with the second sliver.
Patent GB-829470-A (GB)
Title: Mechanical device for reading and storing the working positions of a moveable machine element
IPC: B41J7/32
Filed: 1957-10-25
Abstract: 829,470. Calculating-apparatus. STANDARD TELEPHONES & CABLES Ltd. Oct. 25, 1957 [Oct. 27, 1956], No. 33389/57. Class 106 (1). The invention relates to a device for reading and storing the working positions of a movable machine element. As described, an accounting or calculating machine is provided with means for reading and storing mechanically the position of movable type carriers. A type-bar 11, Fig. 1, having ten positions for the digits 0-9 is movable vertically and is attached to a code plate 12 provided with five slots 13 having notches 14 so arranged that for each vertical position of the type bar, just two of the notches 14 are aligned with plugs 15 carried by horizontally-slidable bars 16. A sensing cycle is performed by a single rotation of a cam 17 which causes a horizontal reciprocation of a guide bar 18 bearing pins 20 co-operating with notches 19 in the bars 16. The initial rightward movement causes the pins 20 to assume the positions shown in Fig. 3, to the right of lugs 22 formed in spring members 21 carried by the bars 16. Subsequent movement to the left causes the pins co-operating with those of the bars 16 which are not opposite a notch 14 to pass to the left of the lugs 22 so that these bars are carried further to the right on the subsequent rightward movement to the state shown in Fig. 1, where the digit which has been typed is represented by the third and fourth bars 16 being further to the left. The bars 16 remain in the position shown despite any subsequent vertical movement of the type bar with the next sensing cycle. The bars 16 may control electrical contacts which are sensed electrically. The cam 17 is operated by a one-revolution clutch controlled by a relay actuated by the element which sets the type bars. Other codes may be employed and the slots 13 may be in the form of circular arcs.
Patent GB-803606-A (GB)
Title: Analog to digital conversion system
IPC: G01D5/39
Filed: 1956-11-01
Abstract: 803,606. Indicating-apparatus. BENDIX AVIATION CORPORATION. Nov. 1, 1956 [Nov. 10, 1955], No. 33413/56. Class 40 (3). [Also in Group XXXVIII] In a device for producing digital electric signals representative of the position of a hand 24 on an indicating device 20, a light source 32 carried on a continuously rotating member 31 integral with a conventional coding disc constantly scans a reflecting annular region 37 of the dial, the reflected light being received by a photo-electric cell 34, and each time the beam of light is interrupted by the hand the combination of markings then present on a set of four sensing brushes B1-B4 is staticized on four relay devices 54, 56, 58, 60 (only the device 60 being shown in detail) which produce markings on leads C1 to C4 representative of the position of the hand, the markings only changing when the position of the hand changes. Normally, with the beam of light not interrupted, relays 73 and 72 (and the relays corresponding to relay 72 in the other relay staticizors) are energized, thereby isolating the sensing brushes and relays 76 and 80. When the light beam is interrupted these relays drop out and a relay 62 is either energized or not energized in accordance with the marking of brush B4. This causes one of relays 76 and 80 to be energized, which in turn either moves the contact 82 if the marking is different to the previous marking, or has no effect on it. In a second embodiment (Fig. 2, not shown) the scale on the indicating device extends over only 250 degrees and the sensing disc is arranged to make one complete revolution only in response to a start (i.e. read-out) signal. Instead of the hand being non-reflecting it could be reflecting and the region behind it non-reflecting.
Patent GB-604985-A (GB)
Title: Manufacture of new highly polymeric linear esters and the production of filaments, fibres and the like therefrom
IPC: C08G63/06
Filed: 1945-12-11
Abstract: Highly polymeric linear esters are obtained by heating a hydroxycarboxylic acid or a low molecular weight polymer of said acid or ester forming derivatives thereof, the acid having the general formula <FORM:0604985/IV(a)/1> where R is (CH2)x or (CH2)x-O wherein x is an integer not exceeding 2 and z is an integer greater than 1 but not exceeding 3, the heating being effected under conditions whereby at least during the later stages of the reaction, volatile by-products are removed and being continued until filaments formed from a melt of the product can be permanently extended by cold drawing into fibres.  Acids specified are: p-(b -hydroxyethoxy)-benzoic acid, and similar hydroxymethyl, hydroxyethyl, and hydroxypropoxy substituted benzoic acids.  When using esters of the acids, ester exchange catalysts may be present, e.g. metal alcoholates.  In examples (1) p-(b -hydroxyethoxy)-benzoic acid is heated at 200 DEG  C. in a vessel, while a stream of nitrogen is bubbled therethrough.  The temperature is raised to 250 DEG  C. after an hour and then the pressure is reduced to .3 mm. and the heating continued for 5 hours when the melt can be drawn into fibres. The melt is removed from the vessel by extrusion and cools to a crystalline mass.ALSO:p - (b  - Hydroxyethoxy) - benzoic acid is prepared by boiling sodium ethyl p-hydroxybenzoate with ethylene chlorhydrin in ethyl alcohol and hydrolysing the ester obtained.  p - (b  - Hydroxyethyl) - benzoic acid is prepared by hydrobrominating b - phenylethyl alcohol condensing with acetyl chloride, oxidizing to p-b -bromoethyl benzoic acid, and hydrolysing  p - (b  - Hydroxypropoxy) - benzoic acid is prepared by condensing methyl p-hydroxybenzoate with trimethylene chlorhydrin in the presence of sodium ethoxide and hydrolysing.  The benzoic acid derivatives are condensed to form fibre-forming resinous products (see Group IV (a)).
Patent GB-633218-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1947-12-19
Abstract: 633,218. Gas meters. ROBINSON & CO. (LIVERPOOL), Ltd., J. H., and KITCHIN, N. Dec. 19, 1947, No. 33556. [Class 54] A dry diaphragm-type gas meter in which a pair of longitudinally displaceable valves 19, 20 are connected to a crank-shaft 9, driven by the diaphragms, by rods 5, 6 rigidly attached at one end to the valves or valve covers 19, 20 and having transverse slots 7, 8 at their other ends which receive the pins of the crank so that the rods on rotation of the crank are moved in a longitudinal direction, in the direction of displacement of the valves, only, is characterized in that the valve cover 19 or 20 has a pin-and-slot connection 13, 14 with its operating connecting rod 5 or 6 so that it can be adjustably clamped relatively to the rod.
Patent GB-1347829-A (GB)
Title: Process and test pack for the determination of glucose
IPC: C12Q1/54
Filed: 1972-07-18
Abstract: 1347829 Determination of glucose BOEHRINGER MANNHEIM GmbH 18 July 1972 [19 July 1971] 33572/72 Heading B1X In a process for the optical determination of glucose in aqueous solution by means of glucose oxidase, (GOD), peroxidase (POD) and 2-2'-azino-di-(3-ethylbenzthiazolone)-6'- sulphonate as chromogen in the presence of reducing substances, neocuproin and a divalent copper salt are added to the glucose-containing solution before the addition of the enzymes. A test pack for carrying out the process comprises (a) an aqueous solution containing 0.05 to 2 mMol/litre of neocuproin, 0.05 to 2 mMol/litre of a divalent copper salt and optionally 0.5 to 10 mMol/litre of a uranyl salt, and (b) an aqueous solution containing GOD, POD, 2,2' - azino - di - (3 - ethylbenzthiazolone) - 6' - sulphonate. The process is applicable to the determination of glucose in blood, serum or plasma and is unaffected by the presence of uric acid, ascorbic acid, glutathione and like reducing substances.
Patent GB-209918-A (GB)
Title: Improvements in draught, dust and weather excluders
IPC: E06B7/20
Filed: 1922-12-09
Abstract: 209,918. Roberts, W. H. Dec. 9, 1922. Draught, dust, and weather excluders.-The excluding strip 1 of a draught excluder for doors, windows, and the like, is mounted so as to have an eccentric radius travel with respect to and outside the radius travel of the door 6, and also a rising and falling movement in its own plane on an end pivot. At one end of the strip is connected the pivot-joint leaf of a hinge-andpivot joint unit 3, the hinge-joint leaf being connected to the door jamb. An extension 4 of the strip is adapted to pass through a guidemember 5 fixed to the door and thus give the excluder the desired rise and fall movement. In the form shown in Fig. 6, the strip is made of wire and has at one end an eyepiece 8 arranged to engage a similar piece 10 secured to the door jamb. Members in the form of a double inclined plane may be employed to guide the member 4, or a stud on the door may be arranged to engage a slot in the excluding-strip.
Patent GB-338381-A (GB)
IPC: B25D9/20
Abstract: 338,381. Lejeune, L. S. M., and Bongrand, J. E. C. Nov. 25, 1929. Roller heads; treating rovings in spinning-machines.-Fibres such as cotton, wool, silk, flax, hemp, ramie and the like are impregnated with solutions, suspensions, or dispersions of coagulable, polymerizable or condensable elastic or plastic materials on the spinning-frame, when the fibres are in the roving stage, the twist for converting the roving into thread being given to the roving after impregnation. The fibres are joined together throughout the whole depth of the thread by the elastic &c. material which also provides a covering layer for the thread. Threads are produced from short fibres with a small twist which are as strong as those made from long fibres with a greater twist, and are smooth and polished, have high flexibility, are impermeable, electrically resistant and non-rotting. The elastic coagulable. materials used include natural non-vulcanized rubber latex, gutta-percha, balata, latex and similar products, either natural or artificial, or regenerated or synthetic. If rubber latex is used the thread is subjected to a suitable subsequent vulcanization. Coagulable plastic, materials which may be used include aqueous dispersions of viscose and other cellulosic ethers. Polymerizable plastic materials include synthetic resins, condensation products of phenols, aldehydes, and the like. The thread may, according to the nature of the impregnating material used, be subjected to subsequent operations, such as the elimination of the liquid in which the impregnating material was dissolved, polishing or other finishing. The thread may also be twisted or stranded from several threads with additional impregnation before or during the twisting or cording. The impregnation may take place on a ring frame or on a self-acting mule. As applied to a spinning-frame the roving 1 passes from the bobbin 2 under a pulley 3 in a bath 6 of impregnating liquid. The roving passes out over the edge 8 of the bath and thence to the drawing-head 9 - - 11<a>. The rollers 9<a>, 10<a>, 11<a> are of metal and are provided with scrapers, and the rollers 9, 10, 11 are rubber covered. Surplus liquid is collected in the trough 12 and a cleaning liquid, such as soapsuds, is supplied through pipes 17 - - 20. The. bath may be arranged behind the drawing-rollers.
Patent GB-1222114-A (GB)
Title: Facsimile recorder apparatus
Inventor: BROUWER FRANS
IPC: H04N1/032
Filed: 1968-07-16
Abstract: 1,222,114. Facsimile recorder. STEWARTWARNER CORP. 16 July, 1968 [17 July, 1967], No. 33849/68. Heading H4F. In a printer contact assembly 44 for facsimile recorder apparatus, means are provided to prevent the accumulation of fibres of paper, picked up during print-out, on the assembly. The invention relates to recorders of the type in which moist electrolytic recording paper is drawn between the assembly 44 and a printer bar 64, metal from the bar being deposited on the recording paper and reacting with chemicals therein to produce an image of the transmitted copy. In the described embodiment, three assemblies 44 are employed which are attached to a moving belt such that each assembly prints out one line at a time in response to an optical scanner carriage, one for each assembly 44 and also moving with each assembly, which scans the subject line by line. Details of the assembly 44 according to the invention are shown in Figs. 3 and 4 in which 43 indicates the carriage to which assembly 44 is fixed by means of screws 80 in holes 76 and also adjusting screw 82; 74 indicates the contact element, attached to strip 66 and bearing against the printer bar 64 by means of spring 84, and 68 indicates a cut-out portion of strip 66 which bears against a pin 86 to prevent excessive movement of assembly 44. In operation, the bar 64 is biased downwards against element 74 and the recording paper passes from a roll between units 64 and 74 in a direction into the paper (Fig. 3), while element 74 moves across the paper. The gap 70, left by cut-out 68 prevents the accumulation of paper fibres and is preferably wider than bar 64. Specification 1,222,113 is referred to.