baber/WOPTO huggingface dataset:
Patent GB-1221853-A (GB)
Title: Magnetic transducers
Inventor: KRONFELD LEONARD E
IPC: G11B5/10
Filed: 1968-04-08
Abstract: 1,221,853. Magnetic heads. NORTRONICS CO. Inc. 8 April, 1968, No. 16879/68. Heading G5R. A magnetic transducer comprises a plurality of body sections containing respective core pieces having flat tip faces arranged to be held together by first and second U-shaped spring clamps. As shown, two body sections 11, 12 containing core halves 14a, 15a and 14b, 15b are clamped together by springs 20 located by shoulders 40-43. The sections 11, 12 may be aligned and secured by adhesive then the assembly potted in a screening can. A terminal board 35 is located and held by lugs 34. In the case of three or more body sections, the Specification states that the adjacent flat tip faces may each define magnetic flux gaps.
Patent GB-594868-A (GB)
Title: Sewing machine loop-taker mechanism
IPC: D05B71/02
Filed: 1945-07-03
Abstract: 594,868. Sewing-machines. SINGER MANUFACTURING CO. July 3, 1945, No. 16891. Convention date, March 16. [Class 112] Lock - stitching by hook.-The. shaft 21 of a horizontal-axis rotary hook 23 is driven at twice the speed of the main under-shaft 18 by means of an internal gear 19 on the latter engaging a pinion 20 on the former shaft the. shaft 21 is carried by bearings 32, 33 in a main bush 35, being prevented from axial movement therein by the pinion 20, which is preferably integral with the shaft, fitting between a block 40 fixed to an extension of the bush and a washer seated in the end of the bush; the bush is secured in the machine frame by a set-screw which engages a groove 38 in the bush to allow axial adjustment of the latter for positioning the loop-taker. Lubricating.-The rotary hook 23 has the usual channel 31 by which the raceway is fed with lubricant from a bore in the shaft 21, lubricant being pumped into the bore and the pressure therein being kept constant by means of a relief passage having a valve whereby the pressure may be adjusted to suit the flow to the speed of operation of the machine. The gears 19, 20 are enclosed in an oil chamber 13, and when in operation they splash oil into a cavity 42 in the upper part of the bush 35, whence it passes to the bore of the bearing 33 and is fed by a helical groove in the shaft 21 to a hole 46 leading to the bore of the shaft; a wick 49 in the shaft bore filters the oil on its way to an oil-retaining recess 30, closed by a disc, in the base of the loop-taker. The pressure-of the oil in the shaft bore is regulated by a screw valve (not shown) lying parallel to the shaft and controlling a passage connecting a groove 52 in the bearing 33, which groove communicates with the shaft bore by a hole 51, with a duct leading to the oil chamber; the head of the valve stem lies at the left-hand end of the bush 35, and is accessible through the base of the loop-taker when the thread-case is removed. The bearing 32 is lubricated by a wick 58 drawing oil from the cavity 34 between the bearings 32, 33, which receives some oil from the helical groove within the bearing 33; excess oil in the bearing 32 is fed back to the cavity by a helical groove in the shaft. The amount of oil that can collect in the cavity 34 is limited by an overflow duct 60 opening into the cavity at a point above the bottom and communicating with the groove 38, which extends into the chamber 13. Specification 534,653 is referred to.
Patent GB-1003845-A (GB)
Title: Improvements in or relating to heating by means of electron beams
Inventor: BURDEN MICHAEL ST JOHN
IPC: H01J37/305
Filed: 1962-05-03
Abstract: In apparatus for coating by evaporation the crucible which heated by an electron beam (see Division H1) consists of electrically conductive ceramic-metal composition, e.g. alumina-molybdenum or thorium oxide-tungsten, or of ceramic in contact with an electrically conducting member or coating, e.g. a molybdenum or tungsten crucible may be provided with an inner alumina or boron nitride liner, or a metal coating may be sprayed on a ceramic crucible.  The crucible may be supplied from a continuously advancing metal feed or from a hopper.  Suitable materials for evaporation mentioned are gold, silicon, silicon monoxide, palladium, copper, silver, nickel, tin, antimony, lead, chromium, indium and also aluminium which however requires the use of a boron nitride insert in the crucible.
Patent GB-722062-A (GB)
Title: Improvements relating to the manufacture of ceramic hollow-ware and moulds for use in such manufacture
IPC: B28B7/10
Filed: 1952-07-07
Abstract: 722,062. Moulding ceramic hollow-ware. BOOTHS & COLCLOUGHS, Ltd., and WALLEY, J. Sept. 24, 1953 [July 7, 1952]. No. 16975/52. Class 87 (2). In making potter's hollow-ware moulds 14, a loose compressible liner 12, Fig. 2, e.g. of rubber, having a design thereon, is lightly stuck, e.g. with soft soap, to a core of plaster 11a, used in forming the plaster mould 14, so that, on removing the core, the liner is removed with the moulded mould from which it is later peeled off. The mould is then used to make clay articles such as cups or mugs which are to bear the design, the shrinkage of the clay. article during drying enabling it to be removed without damage to the design.
Patent GB-256199-A (GB)
Title: Improvements in plants for producing boiler feed water in connection with marine steam engines
IPC: B01D1/10
Filed: 1926-07-07
Abstract: 256,199. Meyer, A. July 31, 1925, [Convention date]. Draught inducers.-The exhaust steam from marine engines particularly for steam tugs is divided into two streams, one of which is discharged into the funnel to increase the draught through the firebox and the other is used to distil water, the distillate and the condensate from the exhaust being used as boiler feed water. The exhaust steam conduit R of an engine M has a branch R', leading part of the steam to a nozzle in the funnel 5. The remainder of the exhaust steam passes through an oil separator 0, into a water-distilling apparatus 2.
Patent GB-125577-A (GB)
Title: Improvements in Hot Air Baths and in Hot Air Generators therefor.
IPC: A61H33/06
Filed: 1918-10-17
Abstract: 125,577. Eisinger fils, F. April 18, 1918, [Convention date]. Hot-air baths; bidets. A hot-air bath for parts of the body comprises an electric air-heater a and a hot-air container o. The heater a consists of resistances f between insulating plates held by rods h, and so connected to a switchboard : i that they can be lifted as a whole out of the box a. The hot air passes into the container by way of a funnel containing removable metal plates d and covered by gauze. The container o has sleeved apertures and supporting straps r for the reception of the parts to be treated. A damper u in an outlet t may be used to regulate the current of air. A bell-shaped cover v is provided with a glow lamp for treatment with ultra-violet rays. The height of the heater in the tripod A may be adjusted by means of screws z; alone, it may be used for thermal treatment in bed or as a thermal bidet.
Patent GB-273709-A (GB)
Title: Improvements in pressed metal automobile bodies
IPC: B62D25/00
Filed: 1927-06-27
Abstract: 273,709. Budd Manufacturing Co., E. G., (Assignees of Ledwinka, J.). July 3, 1926, [Convention date]. Bodies.-In pressed metal touring bodies of the kind assembled from cowl, side and tonneau units the units are constructed in a simplified manner with a minimum of framework, the side sills are provided with a number of inwardly projecting brackets connected together by transverse cross braces, which, in certain instances, have forwardly projecting brackets to support the heel board and the front seat is adjustable in position longitudinally of the body. The cowl unit comprises a cowl panel 10, Fig. 1, connected at the rear to the A post and at the front to a sheet member carrying a fuel tank, brace members 21 in two parts being provided, which members are adapted to support the wind shield stanchion and the instrument board 18. The A post is connected to the sill by a channel member 81. The side sills 29, Fig. 10, are provided with inwardly projecting brackets 42, Fig. 13, and 45, Fig. 11, which brackets are connected transversely by cross braces 43, 44 respectively. The side post B, C is of box section, comprising inner and outer channels 33, 35, Fig. 12, and is connected to the side sill. The cross brace 43 is provided with forwardly projecting brackets 58 having a series of apertures whereby the heel board may be adjustably fixed longitudinally of the body. The seat back panel 52 is adjustably fixed longitudinally by a series of apertures at the top in the channel 35, Fig. 12, and at the bottom by a similar series provided in the projecting brackets 45 of the cross brace 44. The tonneau unit comprises a D post and bracket 64, 65, Fig. 18, connected to the tonneau side sills 62, rear sills 63, panels 68, 69 and bracings 71, 72. Specification 273,703 is referred to.
Patent GB-697096-A (GB)
Title: Improvements in fluorescent discharge-tube safety lamps
IPC: F21V23/04
Filed: 1950-07-10
Abstract: 697,096. Lamp-holders. ARLUX. July 10, 1950 [July 8, 1949], No. 17170/50. Class 38 (i). [Also in Group XI] In a safety lamp comprising explosion-proof end housings A, B interconnected by a transparent protecting sleeve 16 enclosing a fluorescent discharge tube 23, an auto-transformer 22 is carried in one end housing A and the circuit connections are arranged to break the supply to the transformer primary winding 27 automatically on dismantling of the lamp or breakage of the tube. As shown, the supply lead enters the housing A through a gland 2, and connects with plunger contacts 9, 25 mounted in a fixed insulating disc 8. These contacts engage studs 11a and 24 respectively mounted in a cylindrical core 11 which is slidably arranged in a fixed insulating sleeve 6, one 11a of the studs extending through the core to engage the adjacent tube terminal 33 received in a bore 34 in the core and both studs being connected to the primary winding 27 of the transformer. The disc 8 carries springs 10b which tend to move the core 11 out of engagement with the plunger contacts, such movement being prevented when a tube 23 is in position. The other end terminal 35 of the tube 23 engages in a slidable core 18 through which passes a supply lead connected by a rod 7 extending through the tube 16, to the transformer secondary winding. The core 18 is mounted in the other end housing B which has a bossed removable cover 1e screwed thereto and encased by a cap 20. The cap 20, which has a bayonet engagement with a cover boss 19 to allow for rotation to uncover the screws 1d securing the cover 1e to its housing, carries a central rod 21 which extends through the boss 19 and abuts the core 18 so that when the cap is screwed, by screws 29, to the boss 19 the tube 23 is pressed against the core 11 and holds the latter in engagement with disc 8. Should the tube 23 break, or the cap-retaining screws 29 be removed the springs on disc 8 automatically break the engagement between the studs in core 11 and the plunger contacts. Reference has been directed by the Comptroller to Specification 646,431.
Patent GB-949046-A (GB)
Title: Benzene purification process
IPC: C07C7/06
Filed: 1960-05-17
Abstract: Benzene containing n-heptane and cyclohexane and optionally toluene and xylene as impurities is distilled at 2-20 atmospheres absolute pressure to obtain n-heptane and benzene as bottoms and cyclohexane and benzene overhead or as a side cut.  In one embodiment the overheads consist of a cyclohexane-benzene azeotrope and a side cut of benzene, containing some cyclohexane is distilled in a side column to obtain cyclohexanebenzene first column and pure benzene as bottoms. In a second embodiment all the benzene and cyclohexane is taken overhead in the first column and distilled in a second column at normal or reduced pressure, e.g. 400 mm. Hg, to take the azeotrope overhead and obtain pure benzene bottoms.  The reflux in the first column may be 1 : 2.5 to 1 : 5 and in the second column 1 : 300 to 1 : 1,000.
Patent GB-862844-A (GB)
Title: A process for curing organopolysiloxanes
IPC: C08K3/18
Filed: 1958-05-30
Abstract: 862,844. Reticulated surfaces. MIDLAND SILICONES Ltd. May 30, 1958 [Aug. 9, 1957], No. 17387/58. Class 93. [Also in Group IV(a)] In preparing embossed surfaces, the surface of a curable siloxane is covered with a stencil carrying the proper design and thereafter exposed to ozone at a temperature below 80‹C. but sufficiently high to effect curing of the exposed surfaces (see Group IV(a)), The uncured portions of the siloxane can then be etched away with solvent to the desired depth to give the design in bold relief. The remaining uncured portions of the siloxane can then be cured in any desired manner.
Patent GB-1278163-A (GB)
Title: Improvements in or relating to transistor logic circuits
IPC: H03K3/037
Filed: 1970-04-13
Abstract: 1278163 Transistor gate circuits SIEMENS AG 13 April 1970 [14 April 1969] 17409/70 Heading H3T An AND gate has a plurality of inputs E1, E2, E3 connected through emitter followers T6, T7, T8 to respective emitters of T5 whose collector and base are together connected to the input of an emitter coupled pair T1, T2. When E1, E2, E3 are all positive T1 turns on and T2 collector goes positive. An OR function may be introduced by connecting two or more input transistors in parallel to a common emitter resistor (receiving A, B inputs, Fig. 2, not shown); and also by connecting a transistor (receiving D) across one of the emitter coupled pair T1, T2. A bi-stable (Fig. 3a, not shown) has one of the outputs of the emitter coupled pair T1, T2 connected to the base of a further multi-emitter transistor one of whose emitters gives the Q output, and another of whose emitters is connected through a resistor to the supply and provides a feedback signal to one of an OR- connected pair of input transistors, the other of which receives the S input. An R signal is fed to an AND input. The emitter currents of T6, T7, T8 are matched to the respective emitter currents of the multi-emitter T5.
Patent GB-578542-A (GB)
Title: Strip metal hand-feeder for use with presses, power and hand presses, stamps and such like
IPC: B21D43/10
Filed: 1944-09-14
Abstract: 578,542. Holding-tools. HAMMERSLEY, A. E. Sept. 14, 1944, No: 17545. [Class 61 (ii)] A device for gripping metal strip for feeding it to presses &c, comprises two metal cheeks a, b held at spaced distance apart by springs c and limiting screws, one cheek provided with a steel bar g adapted to abut the top edge of the metal strip and the two cheeks lined with leather &c. h to grip the metal strip when the cheeks are pressed together in the hand.
Patent GB-1097223-A (GB)
Title: Swivel scaffold couplings
IPC: B23K20/12
Filed: 1964-04-29
Abstract: 1,097,223. Swivel scaffold clamps. J. M. MARLEY. May 26. 1965 [April 29, 1964], No. 17698/64. Heading E2B. A swivel scaffold coupling comprising a pair of pivotally interconnected body parts 10, 11 and means 18 for clamping a pair of tubes against said body parts wherein one body part 10 has integrally formed thereon a tubular projection 13a extending through a hole in the other body part and expanded at its free end 13b to form the pivotal connection between the body parts. In the embodiment shown the body parts 10, 11 are of generally cuboidal cup-shaped form, the part 10 having a portion 13a projecting outwardly from the base into a hole in the base 14 of the other body part 11. Each body part is formed with recesses to receive the tubes which are clamped in position by a cover 18 and a bolt 24. The cover and bolt are connected to the body parts in various ways as disclosed in Specification 1,097,225. The body parts may also be of cruciform cross-section (Fig. 7, not shown).
Patent GB-562337-A (GB)
Title: Improvements in or relating to liquid containers
IPC: B64D37/06
Filed: 1942-12-14
Abstract: 562,337. Compound fabrics. STREET, W.O., SHAKESBY, L., BURY FELT MANUFACTURING CO., Ltd., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 14, 1942, No. 17735. [Classes 42 (ii) and 140] [Also in Group XXIX] In a liquid container for aircraft &c. with a protective covering secured thereto and comprising one or more layers of swellable rubber or rubber-like material and one or more layers of wood felt, said felt has one or more layers of woven reinforcing material incorporated in its structure. The woven material may be introduced as an open-weave material, preferably about ten threads per inch, which may be of worsted yarn with a mesh about ten threads to the inch, the material being contracted to a close-weave during the manufacture of the felt, alternatively an unmilled cloth may be used of the same wool as that used for the felt. Layers of felt on opposite sides of the woven material, or on opposite sides of a layer of rubber, may have their fibres substantially parallel or relatively inclined. The rubber may be vulcanised to the felt or secured thereto by adhesive. An outer cover of canvas &c. may be provided.
Patent GB-696530-A (GB)
Title: Improvements in electric converters
Inventor: LUDBROOK LESLIE CARTER
IPC: H02M3/18
Filed: 1951-07-26
Abstract: 696,530. Condenser arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. April 30, 1952 [July 26, 1951], No. 17760/51. Class 38 (iv). [Also in Group XL (c)] In a circuit for producing an output D.C. voltage of one sign proportional to the magnitude only of an input D.C. voltage a capacitor C in series with a resistor R shunted by a rectifier D is alternately charged and discharged. A contact 4 may be vibrated between the input contact L and earth E, Fig. 1, or alternatively, a bridge of rectifiers 6 may be made conducting once every cycle, alternating with a second bridge 61, Fig. 4, the rectifier bridges acting as single pole switches. In a modification, Fig. 7, only two pairs of rectifiers 9 are employed biased from a single A.C. source 8, the bias of rectifier D being varied by potentiometer 11 to alter the quiescent level. A smoothing resistor 13 and capacitor 14 may be employed and a biased diode 12 used to limit the output. Specification 613,049 is referred to.
Patent GB-1516828-A (GB)
Title: Folding baby carriage
IPC: B62B7/06
Filed: 1977-04-28
Abstract: 1516828 Folding pushchair KASSAI KK 28 April 1977 [19 Aug 1976] 17764/77 Heading B7B The chair is folded and erected by sliding a backrest 4 along a rod 6 which has a footrest 12 secured to its lower end. A handle 1 is secured to the backrest and is associated with a lever 16 for locking the backrest in position relative to the rod 6. The arrangement allows on, handed operation of the pushchair.
Patent GB-1087166-A (GB)
Title: A method of preparing high-molecular polyether resins
IPC: C08G65/28
Filed: 1965-04-28
Abstract: Polyhydroxyethers of molecular weight between 40,000 and 100,000 are prepared by the reaction of a diepoxide compound with a bisphenol or a diphenol.  Reaction occurs at a temperature below the softening point of the reaction product and in the presence of a tertiary amine, having a dissociation constant between 10-3 and 10-8, and a boiling point 7100 DEG  C., as catalyst.  The molar ratio of epoxide group to hydroxyl group is between 1.0 and 1.2  The amine catalyst has the general formula <FORM:1087166/C3/1> where R1 is a C2 to C20 alkyl radical, or an aralkyl radical, R2 and R3 are C1 to C5 alkyl radicals which may be the same or different or may be epoxy radicals. Examples are benzyldiethylamine, 2 - (phenyl) - ethyldiethylamine, 2-(phenyl) - ethyldipropylamine and benzyldipropylamine. The amount of catalyst may be from 0.01 to 5% by wt. of the reaction mixture. The reaction may take in a mould at between 60 DEG  and 160 DEG  C., the solid cast polymer being subsequently removed after cooling.
Patent GB-313498-A (GB)
Title: Improvements in chasers and method of forming the same
IPC: B23P15/48
Filed: 1929-06-11
Abstract: 313,498. Jones & Lamson Machine Co., (Assignees of Bysshe, E. T., and Finn, R. R.). June 12, 1928, [Convention date]. Void [PubLished under Sect. 91 of the Acts]. Chasers. - The cutting-teeth 2, 6, 10 of screw chasers are made progressively narrower towards the forward end than the full width of the spaces between the finished threads so that succeeding teeth take finishing cuts on the flanks of the partially formed teeth. This narrowing of the teeth may be effected by feeding the grinding wheel y, Fig. 13, progressively deeper into the chaser x when forming the end teeth, causing the teeth 35, 36 to be set back from the axis of the work W, Fig. 2, and the spaces 41, 45 between the teeth to be progressively deeper. The tips of the cutting teeth may be cut off along straight lines or on a concave curve, preferably of parabolic form, as shown in Fig. 9.
Patent GB-701758-A (GB)
Title: Improved device and excipient for the administration of medicinal doses in the natural cavities of the organism
IPC: A61M3/00
Filed: 1951-07-31
Abstract: 701,758. Surgical syringes. LABORATOIRES FRANCAIS DE CHIMIOTHERAPIE.. July 31, 1951 [Sept. 8, 1950], No 18112/51. Class 81(2) Apparatus for introducing paste or jelly comprises an open - ended syringe barrel having a nozzle 3 and cannula 4, together with a resilient sealing member 11 which can be screwed on to the neck of a collapsible tube 16 of medicament and then applied, in a liquid-tight manner, to the open end 2 of the syringe; while the medicament is transferred into it. The syringe barrel is graduated from the open end and, after the desired amount of paste has been transferred, the tube 16 and seal 11 are withdrawn and a liquid-tight plunger is introduced into the barrel to expel the medicament through the cannula 4.