baber/WOPTO huggingface dataset:
Patent GB-588364-A (GB)
Title: Device for tuning a cavity resonator
IPC: H01P7/06
Filed: 1944-04-06
Abstract: 588,364. Magnetrons; electric resonators. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO - HOLDING AKT.-GES. April 6, 1944, No. 6498. Convention date, March 17, 1943. [Classes 39 (i) and 40 (iii)] A magnetron or other ultra-high-frequency oscillator is associated with a cavity resonator 4 whose tuning can be varied by means of a pair 7 of Lecher conductors whose magnetic field is at right angles to that of the resonator so that interference with the mode of oscillation is avoided. Oscillatory energy is extracted by means of a coupling 6 from the interior of the annular hollow resonator 4 whose inner wall is formed by the segments 2, 3 of a magnetron, these segments being connected alternately to the flat end plates of the resonator. The electric vector is parallel to the filament 1 and the magnetic vector is circumferential in planes perpendicular to this filament. One of a pair of Lecher conductors 7 is connected conductively or capacitively to a segment 2 and the other to a diametrically opposite segment 3, and the termination may be a variable inductance or capacitance, a thermionic impedance, a tuned circuit -such as a cavity resonator, or a short-circuiting stirrup. The Lecher conductors may be enclosed in a metal tube to prevent radiation and may serve as a support for the resonator and also for a glass envelope containing it. To this end their inner ends may be bent into the axial direction and protrude, Fig. 2 (not shown).
Patent GB-1522573-A (GB)
Title: Feed regulator clamping device
IPC: D05B27/22
Filed: 1977-02-16
Abstract: 1522573 Feed mechanism in a sewing machine SINGER CO 16 Feb 1977 [12 Aug 1976] 06498/77 Heading D1G The stitch length regulator 50 of a sewing machine is provided with a clamp means 56 effective during a portion of each cycle of operation of the feeding means. The clamp comprises a plate with ends 57, 59 embracing the feed shaft 32 and the regulator shaft 53 respectively. A cam 65 adjustably mounted on shaft 32 tilts the clamp 57, during the period when feed dog 18 is contacting the work, to abut the rear face of the regulator and the face of a fixed lug 63 to hold the regulator in position during the feeding portion of the operative cycle.
Patent GB-977548-A (GB)
Title: Non-consumable arc-melting and arc-welding electrodes
IPC: B23K35/22
Filed: 1963-02-18
Abstract: In a process of making cerium hydride, cerium chips are heated to 600 DEG  F. in an evacuated molybdenum resistance furnace, the furnace is then back-filled with high purity hydrogen, obtained from the decomposition of uranium hydride, to a pressure of 3 p.s.i.  The furnace is slowly cooled, the hydrogen is drawn off and the furnace is then back-filled with argon.  A mixture of columbium and cerium chips may be hydrided in a similar manner. The crushed hydride is mixed with reactive and refractory metal powders compacted and sintered to form a non-consumable arc-melting or arc-welding electrode (see Division C7).ALSO:A sintered non-consumable arc melting or arc welding electrode consisting of cerium and one or more of the reactive and refractory metals Ti, Zr, Cr, V, Rh, Hf, Ru, Cb, Ir, Mo, Ta, Os, Re and W is made from a powder mixture of hydrided cerium and the metal powder which is compacted, heated slowly to a temperature below the sintering temperature to effect dehydriding and finally sintering the dehydrided compact.  The sintered electrode contains 3-25 volume per cent of cerium which is hydrided in vacuum with hydrogen at 600  DEG F. The metal powder may be mixed with the cerium prior to or after hydriding, the hydrided powder is then crushed under argon to minus 325 mesh, compacted under argon and then heated slowly in vacuum to 1400  DEG F. in the case of the cerium hydride metal powder compact or to 1600  DEG F. for the compact in which the cerium and the metal powder were hydrided together. The compact is then sintered in vacuum at 2950  DEG F. for 1 1/2 hours and may be further densified by cold curing and swaging or resintering at 3600  DEG F. in a tungsten resistance furnace.  The following alloys were arc melted under vacuum using the ceriated electrodes: Cb-5% Ti, Cb-5% Zr, Cb-5% Hf, Cb-5% Mo, Cb-5% V.
Patent GB-744537-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P25/24
Filed: 1953-03-10
Abstract: 744,537. Control of A.C. motors. IGRANIC ELECTRIC CO., Ltd. March 10, 1953 [March 10, 1952], No. 6571/53. Class 38 (3) A polyphase slip ring induction motor M has an inching button 17 which, when actuated, completes a circuit to the winding 11 of a relay 2CR. Contacts 11a establish a holding circuit for the coil 11, whilst contacts 11b energize the operating coil 1 of a main contactor F which connects the motor to its supply source. Contacts ld are opened at the end of a predetermined time interval following the initial energization of the winding 1, thus opening the holding circuit of the relay 11 and removing power from the motor M. The motor is thereby inched for a constant and predetermined distance following momentary closure of the switch 17. Inching for a period longer than that permitted by the timing mechanism is effected by sustained closure of the switch 17. For continuous operation of the motor M, a push button 7 is momentarily depressed to energize a winding 9 of switch 1CR which is maintained through contact 9a. The closure of contact 9b energizes the winding 11 of the relay 2CR which, in turn. closes contactor F.
Patent GB-512247-A (GB)
Title: Improvements in or relating to vapour electric arc converter arrangements
IPC: H02H7/12
Filed: 1938-03-02
Abstract: 512,247. Converting. GENERAL ELECTRIC CO., Ltd., and TAYLOUR, H. H. March 2, 1938, No. 6577. [Class 38 (ii)] In a vapour are converter protection against back ignition is afforded by utilizing unbalance appearing at the interphase transformer 6 to cause operation of control means effective to suppress the arc. The two halves of the interphase transformer are interconnected through the centre-tapped winding 10 of a differential relay operating to close a circuit 16 which is effective to apply blocking potential to the grids of the converter or to open circuit-breakers on the D.C. or A.C. sides thereof.
Patent GB-137954-A (GB)
Title: Improvements in "diving bells"
IPC: B63C11/44
Filed: 1919-03-17
Abstract: 137,954. Olson, K. A. March 17, 1919. Drilling submerged work; tapping; screws, inserting; sockets.-A diving bell is provided with a rotary member projecting through the hull and a carrying member rotatably mounted on the hull and adapted to carry a number of tools and attaching devices. A series of fastening members may thereby be attached to a sunken ship &c. at one descent of the diving bell. In the form shown, the carrier 41, comprising spaced disks 42, 43 is rotatable about a shaft 33 and has pairs of alined holes 46 adapted to support a drill 47, a tap and a series of fastening screws, each of which has a flange 48 to retain it in position. The carrier is rotated to bring the desired appliance opposite the rotary shaft 24 which has a laterallyslotted conical recess 30 adapted to receive the conical head 49 of the drill &c. and lateral keys thereon; a threaded rod 26 rotatable within the member 24 engages a threaded recess in the drill &c. to attach the latter to the member 24. A flanged nut 35 on the shaft 33 has a number of pairs of holes corresponding to the number of pairs of holes 46 and adapted to be engaged by a pin 38 so as to hold the carrier first so that the drill &c., while supported by the carrier, is correctly placed for attachment to the member 24, and secondly, so that the apertures 46 are so placed that the attached drill &c. can work through them.
Patent GB-164141-A (GB)
Title: Improvements in automatic weft-replenishing mechanism for looms
IPC: D03D45/50
Filed: 1920-03-04
Abstract: 164,141. Stott, Sir P. S., and Whittaker, J. March 4, 1920. Shuttles, changing bobbins and other weftcarriers in, automatically. -The weft-ends are attached to individual weftholders, each comprising a body part 8 and wires 9, 10, or a single wire, fitting through a slot 13 in a vertical guide 1, which may be the guide for the cop-skewer tips 4. At the moment of transfer, the lowest weftholder occupies a position approximately in line with the shuttle-box, is released from the guide 1 by an escapement mechanism 19, 20, and falls in front of the shuttle box front plate into a receptacle, so that the weftthread carried by the holder engages a strip of carding-cloth or other weftretaining device, such as a pin or row of pins, and is thereby held in proper position for threading the shuttle. When the cop is transferred, the skewer-tip thereof is forced past a retaining-spring 6 at the bottom of a vertical slot 3 leading to an inclined slot 5, or the spring may be moved aside positively. The device may be used with magazines of types other than that shown. In a modification described in the Provisional Specification, the escapement is omitted.
Patent GB-1221514-A (GB)
Title: Process for hardening photographic layers containing gelatine
IPC: G03C1/30
Filed: 1969-02-07
Abstract: 1,221,514. Hardening photographic gelatine layers. CIBA Ltd. Feb.7, 1969 [Feb. 9, 1968], No.6730/69. Heading G2C. Photographic gelatine-containing layers are hardened by incorporating a hardening agent into said layers or an adjacent layer, the hardening agent being a colourless, pyridazine, pyrimidine, pyrazine or 1:3:5-triazine compound which is free from acidic groups and which contains a halogen atom attached to heterocyclic carbon and an organic residue linked with the heterocycle directly or through a sulphur or oxygen atom. The hardener is added to the gelatine solution before coating and may be incorporated into a silver halide emulsion layer or into inter layers, filter layers, subbing layers or baryta layers. The hardeners are preferably halogens-1 :3: 5- triazines or halogens-pyrimidines and the organic residue may be an alkyl, chloralkyl, benzyl, phenyl, thienyl or alkoxy, cyclohexoxy, phenoxy, allyloxy, prop-2-ynyloxy, methoxyethoxy or 2:4-dichloro-1:3:5-triazinyloxy-propoxy group.
Patent GB-297286-A (GB)
Title: Improvements in biscuit jars, and the like vessels or containers
IPC: A47J47/02
Filed: 1928-03-05
Abstract: 297,286. Lawrence, T., and Grundy, J., (trading as Lawrence, T.). March 5, 1928. Handles.-To attach a movable arched handle c to a biscuit jar or like vessel of potteryware perforations a<2> are formed at each side, holes formed in the ends of the handle taking over flanged sleeves f inserted in the perforations, through which sleeves are passed from the interior screwed studs e adapted to be engaged by internallythreaded retaining nuts g.
Patent GB-1428498-A (GB)
Title: Method and apparatus for pneumatically conveying material
IPC: B65G53/52
Filed: 1974-02-14
Abstract: 1428498 Pneumatic conveyers WAESCHLE MASCHINENFABRIK GmbH 14 Feb 1974 [6 July 1973] 6798/74 Heading B8A The introduction of material into a conveying air flow in a conduit is periodically stopped in order that the air flow may clean the conduit walls of material. In the Figure, timing mechansim 10 controls drive motor 8 which drives rotary valve 3 controlling introduction of material from hopper 2 into conduit 1. Rotation of valve 3 is periodically stopped by timing mechanism 10, which also simultaneously closes valve 13 to increase the pressure of the flow of air by preventing air from flowing back through by-pass 11 after passage through compressor 4. The hopper 2 may be pressurized (Fig. 2, not shown), in which case a shut-off valve is operated by timing mechanism 10 in place of rotary valve 3.
Patent GB-689820-A (GB)
Title: Herbicidal or weedkilling granules and method or process of making same
IPC: A01N25/12
Filed: 1951-03-22
Abstract: Weed-killing granules, suitable for aerial distribution comprise a a carrier medium having a hormone substance intimately incorporated therewith formed into granules of a size such that they will pass through a 10 mesh B.S.S. sieve and will be retained on a 60 mesh B.S.S. sieve, the hormone constituting at least 0.1 per cent of the composition and being sufficient to render the composition herbicidal.  Hormones specified are 2, 4-dichlorophenoxyacetic acid amines and sodium salts, 4 chloro-2-methylphenoxyacetic acid and 2, 4, 5 tri-chlorophenoxyacetic acid and their esters.  The carrier may be clay, gypsum, lime or chalk or a fertiliser such as superphosphate especially fines from a granulation process and nitrogen or potash fertilizers.  The hormones may be incorporated with the carrier substance by spraying a solution of the hormone on the carrier during granulation or mixing with the carrier prior to granulation. Specification 573,929, 574,274, 598,104, 598,105, 609,137, [all in Group VI], and 689,819 are referred to.ALSO:Weed-killing granules, suitable for aerial distribution comprise a carrier medium having a hormone substance intimately incorporated therewith formed into granules of a size such that they will pass through a 10 mesh B.S.S. sieve and will be retained on a 60 mesh B.S.S. sieve, the hormone constituting at least 0.1 per cent of the composition and being sufficient to render the composition herbicidal.  Hormones specified are 2,4 - dichlorophenoxyacetic acid amines and sodium salts, 4 chloro-2-methyl-phenoxyacetic acid and 2,4,5 trichlorophenoxyacetic acid and their esters.  The carrier may be clay, gypsum, lime or chalk or a fertiliser such as superphosphate and nitrogen or potash fertilisers.  The hormones may be incorporated with the carrier substance by spraying a solution of the hormone on the carrier during granulation or mixing with the carrier prior to granulation.  Methyl cellulose may be added as a binder.  Specifications 573,929, 574,274, 598,104, 598,105, 609,137 and 689,819 are referred to.
Patent GB-1403277-A (GB)
Title: Glass forming machines
IPC: C03B9/453
Filed: 1973-02-13
Abstract: 1403277 Sweep-out mechanism for glass containers OWENS-ILLINOIS Inc 13 Feb 1973 6881/73 Heading C1M Apparatus for moving newly formed glassware 14 from a glass forming machine dead plate 12 on to a removal conveyer 56, comprises a sweep arm 29 on a shaft 17 for moving the glassware, drive means such as sprocket 20, for driving the shaft 17, means such as a spring- loaded detent 22 engaging a notch 24 normally interconnecting the sprocket 20 and the shaft 17 and adapted to disengage the sprocket 20 from the shaft 17 when the sweep arm 29 meets an abnormal resistance during its motion and means for limiting the angular displacement of the sweep arm 29 on the drive shaft 17 beyond a pre-set angle so that when disengagement of the detent pin 22 is effected, the sweep arm 29 is automatically brought back into the proper phase relationship with the drive sprocket 20 on the return stroke thereof. As shown in this embodiment, the means for limiting the angular displacement of the shaft 17 comprises a notch 62 in the shaft 17 engaged by a stop pin 64 passing through a threaded hole 66 in a body casting 16, a second threaded hole 68 being provided for a left-hand sweep out action. The limitation of rotation of shaft 17 is such that pin 22, on a collar 26 secured to shaft 17, cannot move outside the arc of notch 24 which is formed on the upper surface of the hub 19 of chain sprocket 20. For use on existing sweeping mechanisms, means for limiting the angular displacement comprises a horizontally extending pin secured to the drive shaft 17 and an externally mounted stop plate with two stop rods mounted thereon.
Patent GB-898847-A (GB)
Title: Improvements in or relating to the manufacture of sintered and worked tungsten bodies
Inventor: JONES DAVID JOHN
IPC: C22C1/04
Filed: 1959-02-27
Abstract: 898,847. Powder metallurgy. GENERAL ELECTRIC CO. Ltd. Feb 12, 1960 [Feb. 27, 1959], No. 6931/59. Class 82(1). [Also in Group XI] A composite sintered and worked tungsten body is formed by reducing a mixture of tungsten oxide and a grain growth promoting agent to form a modified tungsten powder which is then compacted adjacent to and together with a normal unmodified tungsten powder, the composite compact being sintered in a reducing atmosphere and finally swaged and/or worked to shape. One % of the modifying agent by weight of the modified tungsten is preferably added as a solution and consists of a mixture of potassium silicate and an aluminium salt e.g. aluminium nitrate which decomposes to Al 2  O 3  on heating. The mixture is reduced to tungsten at up to 850‹C. in hydrogen and the powder may be washed with HCl and HF. The unmodified tungsten powder may contain a small amount of thoria to inhibit grain growth and the two powders are charged into separate compartments of a die the spacers forming the compartments being removed before compaction. A bar having a core of unmodified powder and an exterior of modified powder or vice versa is formed, sintered above the recrystallisation temperature e.g. 2950‹C. in hydrogen, swaged to rod and then drawn into wire. Only 0À001% to 0À005% of the modifying agent remains in the sintered tungsten and for the preparation of incandescent lamp filaments it is preferable to have a core of unmodified tungsten which after sintering consists of small equiaxed crystals an exterior circumferential layer of modified tungsten consisting of large longitudinally elongated crystals. Apparatus for producing the composite bar consists of a mould 1 and a double filling funnel 2 and 3 (Fig. 1). Modified powder for the exterior is filled to level a and unmodified powder for the core is filled to level b in the central compartment 4 via 2. The side compartments 5 are filled with modified powder to level b, the double funnel is removed and modified powder equal to the amount in space a is then added above level b. A solution of 0À5% of camphor in ether may be added to the powders before compaction.
Patent GB-548922-A (GB)
Title: Improvements in and relating to wall and roof constructions of reinforced concrete for houses, sheds, huts and other buildings
IPC: E04B1/16
Filed: 1941-05-30
Abstract: 548,922. Roofs. WALLER, J. H., DE W. May 30, 1941, No. 6942. [Class 20 (iv)] A monolithic conical roof is formed by plastering cement, concrete or the like on flexible fabric in the form of a tent supported at the eaves on walling, or on lintels carried on columns or posts. During plastering the fabric is supported on radial rods 8 attached to upper and lower rings 3, 7 at the apex and eaves respectively supplemented by scaffolding 1, 2, 6 ; after setting, the rings, rods and scaffolding are removed and the load transferred to the walls or lintels. Reinforcement may be embodied in the roof, and in the posts and lintels. The opening above the space left by the ring 3 may be covered by a smaller similarly-constructed cone, or a light, a moulded or metal lantern, or a ventilation capping.
Patent GB-349921-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F27/12
Filed: 1930-01-31
Abstract: 349,921. Printing-machines. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A. Jan. 31, 1930, No. 6948/31. Divided on 348,025. [Class 100 (ii).] Impression surfaces. - An impression cylinder which is to be used in connection with the printing-cylinder described in Specification 349,922 and the printing - machine described in Specification 348,025 is constructed with means for securing the impression blanket 14 around the flange 4 of the cylinders comprising a wedge 13a secured by screws 15 in a corresponding recess in a part 8 of the cylinder and serving to clamp one end of the blanket 14 in position. The other end of the blanket is connected by a screw clamp 18 to a block 16 formed with rack teeth 22 engaged by the teeth 23 of a pinion 24 mounted in an enlarged part 7 of the cylinders. The pinion 24 is prevented from axial movement by a pin and groove, and is formed with a tool grip 29 to receive an actuating-tool. Reverse rotation of the pinion 24 is prevented by a ratchet 27 engaged by a pawl 30 acted on by a spring 32. The clamp 18 is formed with projections which are received in guides in a wall of the recess 9 of the cylinder, and by moving the clamp 18 and block 16 in the recess 9, tension is put on the blanket. In order to permit of adjustment of the blanket, the cylinder 4 is connected to its shaft 5 by means of a pivoted dog 33 which normally engages a recess in the shaft. By moving the dog, the cylinder can be disengaged from its shaft temporarily as required, and restored to its original position.
Patent GB-406867-A (GB)
Title: Improvements in and relating to wheels for power-driven vehicles and the like with detachable rims
IPC: B60B25/04
Filed: 1933-03-07
Abstract: 406,867. Vehicle wheels. ZIPPER, E., and ZIPPER, W., 120A, Hietzinger Hauptstrasse, Vienna. March 7, 1933, No. 6960. Convention date, March 9, 1932. [Class 144 (ii).] A detachable-rim of the kind described in Specification 310,018, [Class 144 (ii)], comprising a split side flange 12 and an endless main portion 11 capable of limited axial separation (due to the tyre pressure) after assemblage on the wheel, is secured by a split ring 25 which, in expanding to lock the rim, moves axially towards the latter so as to minimize the actual separation of the rim-parts 11, 12. In the construction shown, the rim-flange 12, before assemblage of the rim on the wheel, is held fully expanded by means of a toggle 18 fitted between lugs 19 on the flange. The split locking-ring 25 is formed with wedge-shaped projections 28 adapted to engage, in bayonetjoint fashion, in correspondingly-grooved lugs 29 on the ends of the spokes 10. The ring 25 is expanded by means of a pivoted wedge 35 adapted to be forced between the ends 25<1>, 252 of the ring.
Patent GB-245636-A (GB)
Title: Improvements in and relating to dust collectors or separators and the like
IPC: B04C5/12
Filed: 1925-03-14
Abstract: 245,636. Davidson & Co., Ltd., and Whitmore, J. March 14, 1925. Addition to 196,537. Density separators. -The dust separator described in the parent Specification is modified by the addition of stationary guide vanes in or at the air outlet 3 so that the whirling motion of the air is converted gradually and without shock into a substantially linear flow parallel to the axis of the outlet. In the form shown in Fig. 1 the vanes 6 are arranged in pyramid form and their outer ends extend downwards and outwards beneath the outlet pipe 3; these ends are curved to cut into the whirling air. The vanes are enclosed between a conical member 8 and a truncated conical member 7. The vanes may be alternately long and short and may only approach to within a certain distance of the centre. They may be arranged tangentially to a circle and set at the desired angle. In a modification, the vanes are arranged in the outlet, their lower ends being curved to meet the air stream, or they may be arranged in an extension of greater diameter than the outlet pipe. In the modification shown in Fig. 4 the vanes are in the outlet pipe and are deeper at the periphery than at the centre of the pipe. In another modification, the vanes are arranged as an inverted cone, the inclined edges being curved to meet the whirling air.
Patent GB-103591-A (GB)
Title: A New or Improved Automatic Stop for the Feed Motions of Milling Machines and the like.
Inventor: CASH JOSEPH
IPC: B23Q5/22
Filed: 1916-05-17
Abstract: 103,591. Cash, J. May 17, 1916. Driving machines.-A worm drop-box for the feed of a milling or like machine is controlled by a spring bolt g having a reduced end engaged directly by a stop f secured by a screw i, acting through a spring-plunger h, on a rib a<1> formed on part of the table guideway.