baber/WOPTO huggingface dataset:
Patent GB-1034243-A (GB)
Title: Concrete ring and arrangement for connecting such concrete rings
IPC: E03F3/04
Filed: 1964-05-14
Abstract: 1,034,243. Pipe coupling; concrete pipes. VALLBO CEMENT & BYGGNADSVAROR A.B. May 14, 1964 [May 16, 1963; May 11, 1964], No. 20173/64. Headings F2G and F2P. A pipe or ring coupling comprises two concrete rings 1, 2 arranged vertically end to end each ring having a groove 4 in one end face and a ridge 6 in the other, and a rubber or plastics ring 7, fitting in said groove, wherein the height of the ridge is less than the depth of the groove and the thickness of the ring is greater than the difference between the height of the ridge and the depth of the groove. The groove preferably tapers outwardly from its base and the ridge tapers outwardly from its outer face 9. The ring may be cured or partially cured, may be secured to the base of the groove by adhesives, and may be supplied as one strip with bevelled ends for attachment by adhesives or by completion of curing of the ring in a compressed condition. The ring may have one flat face in contact with the base of the groove or may be provided with ridges (Fig. 4, not shown).
Patent GB-358094-A (GB)
Title: Improvements in and relating to tents, awnings and like portable structures
IPC: E04H15/20
Filed: 1930-07-03
Abstract: 358,094. Tents. DIXON, H. S., Terrey Cottage, Burwood Road, Hersham, Surrey. July 3, 1930, No. 20192. [Class 20 (i).] Tents of the kind having inflatable ribs, have the ribs less extensible on the inner face, or of curved shape when deflated, so that on inflation they assume the naturally curved condition required. In one form, two tubular ribs b are used crossing over each other at the apex, where they are secured together by a nipple c, while in another form separate tubes are used joined together at the apex by a union-piece. All the tubes may be inflated through a single nipple or each tube separately and the exhaust gases of a motor vehicle may be used for this purpose. The tubes are of rubber-treated or rubber-lined canvas, and have secured to their walls inextensible strips g provided with folds g<1>, Fig. 8, for attachment of the covering material, or separate flaps may be attached to the ribs for this purpose. The flaps may be secured to the inside of a rib and the inextensible strip 7 to the outside over the joint 8, and the tube then turned inside out. The inextensible strips may be secured to the outer canvas covers of the ribs. The free ends of the ribs are secured in screw clamps j having resilient gripping pieces l. Ventilation for the tent is provided through the apex at n, and a reinforcing arched member u is provided over the entrance flaps in the cover and these flaps may be secured together by an alligator fastening.
Patent GB-1156748-A (GB)
Title: Self-Loading Scraper Elevator Mounting.
IPC: E02F3/64
Filed: 1967-05-02
Abstract: 1,156,748. Earth-moving scraper bowls. CATERPILLAR TRACTOR CO. 2 May, 1967 [7 July, 1966], No. 20258/67. Heading E1F. In a bowl type scraper 13 is provided an elevator 43 that is connected to the bowl through four pivot arms 53, 58 in an arrangement through which the upper end of the elevator is pivoted forwardly during ejection, whilst the lower end of the elevator may pivot . upwardly along a path fairly closely coinci- , dent with the soil failure plane and against a constantly increasing holddown force inherent in the geometry, of the pivot structure.
Patent GB-516083-A (GB)
Title: Improvements in or relating to the sharpening of the knives of tobacco cutting machines
IPC: B24B3/36
Filed: 1938-07-08
Abstract: 516,083. Sharpening machine cutters. MOLINS MACHINE CO., Ltd. (Gooch, C. W.). July 8, 1938, Nos. 20319/38 and 1579/39. [Class 60] A rotary tobacco cutting machine having blades 5 which move in a substantially vertical plane and have cutting edges inclined at a substantial angle to their direction of movement, has sharpening means comprising a grinding- wheel 7 having its plane inclined downwardly away from the path of the blades so that grinding swarf discharged downwardly falls clear of the lower part of the grinding-wheel. The knives rotate round a centre support 4 and pass in succession across a mouthpiece A for shredding a cheese of tobacco. The knives may be automatically fed to compensate for wear as described in Specification 365,997, [Group I]. The cup-shaped grinding-wheel has an annular operating surface 18 and is located at a point where the knives are moving downwardly. The grinding-spindle 16 is inclined at about 2 degrees in a vertical plane. In order that the knife-edges may be correctly sharpened throughout the inner part of the blade is protruded slightly more than the outer part so that there is slight axial projection of the lower part. Owing to the tilting of the grinding- wheel only the left hand, Fig. 1, part of the grinding annulus is effective. In order to prevent the adherence of tobacco juice &c. to the grinding surface the inner and outer peripheral surfaces of the wheel are impregnated with. shellac or otherwise rendered waterproof and water is fed to the wheel interior by a conduit 12, a non- rotary shield 14 serving to prevent splashing. Alternatively water may be directed on to the grinding surface 18 by an atomising device. Instead of water, glycerine or other polyhydric alcohols may be used. Specification 406,320, [Group I], also is referred to.
Patent GB-148398-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/20
Filed: 1920-07-09
Abstract: 148,398. Junkers, H. Dec. 27, 1916, [Convention date]. Movable-abutment type; discharge and suction passages.-In a pump of the rotary abutment type, the piston vanes 5 are supported at both ends by disks 10, 11 rotating round stationary pins, and the rotary abutment 21 with which they co-operate is provided with a greater number of recesses than there are vanes, so that it rotates at a slower angular speed than the piston. Two or more pistons 5, Fig. 5, may coact with the same abutment 21, and the fluid may be admitted axially to chambers 25, Figs. 7 and 8, and ports 27, and discharged axially through ports 20 and chambers 30.
Patent GB-148411-A (GB)
Title: Transmitting and receiving device for subaqueous sound waves
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,411. Signal Ges. April 4, 1916, [Convention date]. Addition to 147,935. Subaqueous sound signals.-The two masses 1, 2, Fig. 1, constituting an oscillatory structure as in the parent Specification are connected by a rod 5 and a returning-tube 7. The mass 1 is of laminated iron and is enclosed in a non-magnetic holder 3. The mass 2, also laminated, constitutes an electro-magnet with exciting and polarizing coils 8, 9 and is enclosed in the non-magnetic holder 4 The whole is secured to the sound-plate or diaphragm 10 and may be employed either as a transmitter or receiver according as the coils are connected to an alternating current generator or a telephonic receiver. Concentric tubes may be used instead of the rod and tube. When the apparatus is used in an horizontal position, two separate magnet systems are provided, and the exciting current in the upper one is greater than in the lower so as to compensate for the tendency to distortion due to the weight of the mass 2, 4. Fig. 3 shows apparatus used for receiving only. Between the mass 11 and the electrode 15 carried by the mass 12 are carbon granules, retained in place by soft asbestos 16. A soft diaphragm 17 shuts off the space between the masses from the exterior.
Patent GB-255656-A (GB)
Title: Improvements in and relating to toe stiffeners for boots and shoes
IPC: A43B23/08
Filed: 1925-08-13
Abstract: 255,656. Pochin, H. S., Rock, W., and Lawson, B. Aug. 13, 1925. Stiffeners.-Toe puffs, which may be softened by heat or by solvent, have top and bottom layers B, 0, Fig. 1, formed of a single piece of fabric folded centrally at A, one or more layers of absorbent fabrics g, h, i, Fig. 2, being inserted therein. This is done to prevent the stiffening medium being squeezed out at the edge D of the puff during lasting. The inner layers are so arranged stepwise that the marginal portion near the fold D, Fig. 2, is of gradually increasing thickness. The outer layer of fabric is of close texture to prevent passage therethrough of the stiffening medium contained in the absorbent fabric. The layers g, h, i, may be made of buckram steeped or coated with a coating of gum, resin, tar, or other suitable material. The complete puff may be rolled, the edge D being first inserted between the rollers so that the stiffening medium is not squeezed towards the edge D. The outer layers B, C may be of such a size as to project at L beyound the inner layer or layers. The outer layers may be gummed externally.
Patent GB-735401-A (GB)
Title: Flow controlling fitting
IPC: F16K3/312
Filed: 1953-07-22
Abstract: 735,401. Valve closure members. HAMER, L. S. July 22, 1953. No. 20375/53. Class 135. A flow control fitting for pipe-lines and the like comprises a body having a clamp section B with a flow passage 41 and a nose 42 telescopically engaging a counterbore 15 in a main body section A having a flow passage 11 and a laterally-opening pocket 13 intersecting the passage 11 and adapted to receive a valvelike plate E which is clamped between a seat 20 and the nose 42 by means of equi-spaced operating members D each having a threaded shank 60 screwed into a part of the body section, a flanged intermediate section 62 arranged for rotational but not axial movement in openended slots or recesses 73 in the clamp section B, and a head section 61. The heads 61 have openings 66 for operation by a tommy-bar or the like. The intermediate sections 62 are of smooth cylindrical contour and each is provided with a thrust collar 63 co-operating with the corresponding head section 61 to restrict axial movement of the operating member D. The plate E has a perforate disc 28 and an imperforate disc 27 joined by a web 29. Either disc may be inserted in the pocket 13. The slots or recesses 73 are U-shaped and are formed in flange-like projections 72 on the clamp section. The uppermost operating member D screws into one of the side walls 23 of the pocket 13 whilst the two lower ones screw into lugs projecting from the body section A. The pocket 13 has a drain plug 34.
Patent GB-673691-A (GB)
Title: Improvements relating to dynamo-electric machines
IPC: H02K3/28
Filed: 1949-08-05
Abstract: 673,691. Winding layouts for dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd., CLARK, L. J., MAGGS, A. H., and CHOUDHURY, S. U. A. July 4, 1950 [Aug. 5, 1949], No. 20379/49. Class 35. The winding of a dynamo-electric machine is given a sinusoidal distribution by making the pitch of the coils two-thirds of the pole-pitch, by making the number of coils per pole-pair per phase equal to (the nearest integer to) two-thirds the number of slots per pole-pair, and making the number of turns in each coil approximately equal to sin (#/3 Œ α), where " a " is the electrical angle between the axes of the coil and its pole-phase group. The single-phase winding shown in Fig. 3 has 24 slots per pole-pair, the pole groups 1 to 8 and 13 to 20 being similarly varied, as regards coil numbers, in accordance with the invention. Thus, the conductors in coils 1-9 and 8-16 which are the first and last coils of one pole group and coils 13-21 and 20-4, which are the first and last coils of the other group, have only a few conductors, i.e. proportional to sin 7.5 degrees. The coils towards the centre of each group have larger numbers of conductors, i.e. proportional to the sines of larger angles up to 52.5 degrees. In polyphase windings, each phase is equally divided into two consecutively wound sections superimposed in the same slots so that the end portions of each section may be symmetrically interwoven by inserting all the left or right hand coil sides into the slots first. Fig. 5 shows one form of three-phase winding in which the coils having numbers of turns increasing with " α " are wound in one direction and those having numbers of turns decreasing with " α " are wound in the other section, the sections being interconnected at points AX, BX, CX. In an alternative arrangement, all the coils of one polarity in each phase are wound in one section and the coils of the other polarity in the other section.
Patent GB-958820-A (GB)
Title: Improvements in or relating to methods of and apparatus for the preparation of pure metals
Inventor: KAHAN HENRICK
IPC: C22B5/16
Filed: 1962-05-28
Abstract: <PICT:0958820/C3/1> <PICT:0958820/C3/2> A method of preparing pure metals which can be volatilized under vacuum, such as alkali metals, alkaline earth metals, magnesium, beryllium, or manganese, comprises heating a compound of the metal to be prepared under reduced pressure in a crucible, the required metal being condensed on a surface having adjustable temperature and/or position, baffles being provided in between the crucible and said condensing surface. The baffles, or at least their surfaces, may be formed of a substance which acts as a chemical trap for part of the vapours produced, and are preferably heated to a temperature in excess of the condensation temperature of the metal to be prepared.  The gap between the baffles is at least as large, preferably 1 - 100 times at large, as the mean free path of the gaseous molecules in the hottest part of the device.  In Figs. 1 and 3 the compound (e.g. CaC2 or beryllium carbide) 4 is heated by means 7 (high frequency induction, electronic bombardment or Joule effect) and the gases rise through column 5 of baffles 6 which is hotter at the bottom than at the top.  In Fig. 1 the top of the column is below the maximum condensation temperature of the metal to be produced, which therefore condenses as shown at 12.  In the embodiment of Fig. 3 all the column 5 is above said temperature, the products gases being condensed on one of the parts 81 (a cooled arch), 82 (a cold annular portion), and 83 which may be heated to any required temperature.  Thus in use the more volatile impurities can be collected on 82 during a first period of time, then when the metal to be produced the chamber 8 is lowered so that the portion 83 is opposite the vapour opening, this portion being heated to a temperature between the condensation point of the metal and 200  DEG C. less than this to condense the said metal as shown at 13 in Fig. 3.  Examples describe the preparation of calcium and beryllium by distillation of their carbides and magnesium by silicothermy of calcined dolomite.
Patent GB-230718-A (GB)
Title: Improvements in automatic scales
IPC: G01G23/18
Filed: 1924-08-29
Abstract: 230,718. Torgersen, C. March 13, 1924, [Convention date]. Printed records, apparatus for giving.-In an automatic weighing scale of the type provided with means for giving a printed record, a contact arm rotates with the indicating pointer and is adapted to rock at right angles thereto so as to touch one or more of a series of electrical contacts corresponding to the dial graduation thereby energizing electromagnets which are used to arrest the printing discs at the correct setting in readiness for a printing operation. The spindle 7, Fig. 1, of the indicating pointer 2, carries a contact arm 6 capable of rocking on a pin 9 so as to bring spring contacts k - - k<4>, carried by the arm, against groups of contacts a. b, c, d arranged in circular formation around the spindle 7. The contacts a, b, c, d are connected to electromagnets E, Fig. 6, which actuate sliding locking pawls e, f, g, h so as to intercept teeth arranged upon the printing discs 19 - - 22. For instance, the contacts a control the vertical series of locking pawls e, one pawl for each number on the disc 19, the position assumed by the disc depending upon which pawl is actuated to intercept the tooth on the disc. After the indicating pointer has come to rest the operator closes an electrical contact and thereby energizes an electromagnet 15, Fig. 1, which attracts an armature 17 and rocks the contact arm 6 so as to close the contacts k<1> - k<4>, a, b, c, d. An annular contact 14 and a spring contact 13 complete the circuit through the selected electromagnets, and the corresponding locking pawls e, f, g, h are advanced towards the type discs. The shaft 23 of the type discs is now rotated and the type discs (which are resiliently mounted on the shaft) are arrested by the locking pawls with the correct figures at the top, and a, printed record may be obtained in known manner on a paper strip, cut off, and automatically delivered. To distinguish between zero and maximum weighings, where the pointer position is the same, a spiral tube 16, Fig. 1, containing a bead of mercury is provided and rotates with the spindle 7. After a complete revolution the mercury establishes a circuit through an insulated contact 12, contact 32, and an additional electromagnet, which arrests the type disc 22, Fig. 6, so that a number representing the maximum weight is presented in printing position.
Patent GB-643166-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B66C17/06
Filed: 1947-07-29
Abstract: 643,166. Elevated railways. KING, D. M. July 29, 1947, No. 20508. [Class 104 (ii)] A drop or transfer section 20 forming part of an overhead track system from which loadcarrying trolleys are suspended is arranged to be brought into register with an end of either of two fixed tracks or track sections such as 17, 18, to transfer a trolley or trolleys from one to the other, or to transfer trolleys between tracks at different levels, the track section 20 being attached to a frame 19 suspended by hoisting- cables 21 from a crab 11 which runs along a track 15 on a travelling crane or gantry 10 arranged to be traversed on girders 13 at its ends. Unwanted lateral or swinging movement of the section 20 is prevented during hoisting and lowering by providing its associated frame 19 with guide-wheels or rollers 23 which run in vertical channels 24 extending downwardly from the crab 11 to which they are rigidly attached at their upper ends. The ends of the tracks 17, 18, and of the section 20, are preferably provided with automatic stops to prevent over-running of trolleys thereon when the movable section 20 is out of register with a fixed section. The crab 11 is provided with a poweroperated winch or other hoisting mechanism.
Patent GB-240280-A (GB)
Title: Improvements relating to carding machines
IPC: D01G15/56
Filed: 1924-08-30
Abstract: 240,280. Ballantyne Bros. & Co., Ltd., D., and Brown, J. Aug. 30, 1924. Carding-engines.-In a carding-engine with a single doffer tape condenser an endless apron 1 is led around rollers 4, 5 near the cylinder and the doffer 2. A support 6 holds the apron up to the cylinder 3. The rollers 4, 5 and the support 6 may be adjustable. -.
Patent GB-357306-A (GB)
Title: Improvements in or relating to push-pull thermionic amplifiers
IPC: H03F3/32
Filed: 1930-07-08
Abstract: 357,306. Valve amplifying circuits. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 78, 22nd Street, Jackson Heights, New York, U.S.A.) July 8, 1930, No. 20662. Convention date, Aug. 17, 1929. [Class 40 (v).] In a push-pull thermionic amplifier operating without a grid bias battery, impedances Z1, Z2 are arranged in series with the grids of the valves which are thus alternately active. The Figure shows an arrangement in which an impedance L is provided so that the output of the active valve flows through the inactive valve instead of through the plate supply source to avoid the shunting effect of the inactive valve. In a modification, (Fig. 3, not shown), the output is applied to a loudspeaker of the kind in which the armature moves in a plane parallel with the faces of two pairs of polepieces each pair being provided with a winding in the output of one of the valves.
Patent GB-152168-A (GB)
Title: Improvements in and relating to steam superheater apparatus
IPC: F22G5/04
Filed: 1919-08-22
Abstract: 152,168. Marks, E. C. R., (Locomotive Superheater Co.). Aug. 22, 1919. Dampers for controlling superheaters. - The passage of hot gases through a superheater chamber is controlled by means responsive to the changes of temperature of the gases and of the superheated steam. Dampers 13, 14, Fig. 1, controlling the outlet of the hot gases from a superheater chamber 3 are operated by piston devices 18, 19 under the control of thermostats placed respectively in the path of the gases and in the superheated-steam pipe 10. The thermostats operate pilot valves 28, 29 controlling the supply and discharge of pressure fluid to and from the piston devices. A single damper may be used in place of two dampers, the piston-rods of the piston devices separately engaging with the damper counterweight. The pilot valves 28<a> 29<a>, Fig. 5, control the supply and discharge of pressure fluid to and from a single piston device 18a, the pistonrod being connected to the damper counterweight 15a. A rotary damper operated through a slotted lever arm may be used in place of a counterweighted damper. The thermostats 36<a>, 37<a>, Fig. 10, control the operation of the damper 10<a> elactrically. The chain of the damper is wound over a pulley 62, which is rotated in one direction or the other by a reversible electric motor 61. The motor switch 60 is thrown over by electro-magnets 64, 65, which are separately included in the circuit of a transformer coil 66 according to the position of switch arms 69, 70 connected to the thermostats.
Patent GB-864123-A (GB)
Title: Improvements in or relating to arrangements for use in supporting brackets or shelves
Inventor: HOBSON CHARLES WILLIAM
IPC: A47B47/02
Filed: 1957-07-01
Abstract: 864,123. Shelves; brackets; joints. HOBSON, N. June 30, 1958 [July 1, 1957; Sept. 17 1957], Nos. 20741/57 and 29240/57. Classes 52(1). 52(2) and 52(5). A vertically adjustable support member for a bracket or shelf and a vertical upright have each a complementary pair of faces forming a substantial angle with each other, the faces having interfitting projection and engagement means one of which slopes downwardly and inwardly so that as the member is applied to the upright it is wedged into the corner formed by the faces thereof. As shown in Fig. 1, four L-shaped uprights 1 have on each flange a series of headed studs 3 disposed in pairs at the same height and a shelf 4, which may be made as a sheet or, as shown, is a sheet 9 received in a frame 7, has a sloping lug 6 at each corner to take behind the heads of a pair of studs 3. The lugs may have hair-springs to catch under the studs to retain the parts assembled . As shown in Fig. 3, each upright co-operates with a block 14 having sloping grooves 17 co-operating with the headed studs, retaining springs 22 being provided. The shelf has a resilient stud 20 taking into a hole 21 in the block or the hole 21 may contain a spring to grip a plain stud on the shelf. As shown in Fig. 7 a corner block has sloping grooves 27 to receive the studs and a smaller top portion 29 to leave a space to receive the depending flange of bracket shelf or shelf-bearer. The flange and the portion may have complementary shaped parts such as grooves 28 and slots to locate the parts. The uprights may be secured to wooden legs if the shelf takes the form of a table top. As shown in Fig. 11, a bracket has inclined slots taking over studs 37 on the upright. The upright may be of X-shape in cross-section to accommodate four brackets or shelves or each flange of the upright may be of channel form to receive a vertical panel. The studs may be carried on the shelf or bracket and be received in slots in the upright. As shown in Fig. 16, uprights 58, 59 are joined end to end by a part having sloping grooves 56 taking over a pair of studs 57 on each upright. The angle between the upright's flanges may be greater or less than 90 degrees.