baber/WOPTO huggingface dataset:
Patent GB-373294-A (GB)
Title: Improvements in or relating to the electrical control of the intensity of a beam of light
IPC: G02F1/07
Filed: 1931-02-26
Abstract: 373,294. Electro-optical light-valves. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and WRIGHT, W. D., 69, Lakeside Road, Palmers Green, London. Feb. 26, 1931, No. 6102. [Class 40 (iii).] In light-modulating apparatus comprising a Kerr cell situated between polarizing and analysing devices, means are provided for rendering the light incident on the Kerr cell elliptically or circularly polarized and thereby introducing a predetermined, fixed retardation between those components of the light which lie parallel and perpendicular to the lines of electric force within the Kerr cell. The means, which may alternatively be applied to the light emerging from the Kerr cell before it passes through the analysing device, may be a mica plate, a piece of celluloid strained so that it becomes birefracting, or a second Kerr cell subjected to a constant biasing potential. The Figure, which serves to illustrate the operation of the apparatus, shows the characteristics of a modified and of an unmodified Kerr cell arrangement. In the curve OPABCD relating to an unmodified cell, the intensity of the light transmitted increases gradually to a maximum with the increase of the potential applied to the cell. With the modified cell, if the fixed polarizing means is arranged to produce a phase retardation of one half wave-length, the intensity of the light transmitted is a maximum when no potential is applied to the cell and gradually decreases with increased potential as indicated by the curve TGHBJF. In the application of the apparatus, to obtain variations of intensity from zero to that represented by MC, a range of applied potential PM is necessary with the normal Kerr cell, whereas in the modified arrangement a reduced range, represented by KF, will be sufficient, thus indicating an increased sensitivity in the light-modulating apparatus.
Patent GB-679817-A (GB)
Title: Improvements in magnetic recording and reproducing systems
IPC: G11B15/62
Filed: 1948-02-27
Abstract: 679,817. Magnetic recording and reproducing apparatus. BRUSH DEVELOPMENT CO. Feb. 27, 1948. [May 25, 1944] No. 6150/48. Class 40 (ii). In a magnetic transducing apparatus, the transducer comprises a magnetic circuit in which the pole tips make contact with the magnetic steel record and the interlinking magnetic flux variations correspond to the signals. As shown, Fig. 1, the magnetic transducer head 10 comprises two pole pieces 11 between which the gap 12 is bridged by the record track 41 and which are joined by the yoke 17 supporting the coil 18. The pole pieces are rigidly secured to the non-magnetic ring 31 and held between the wall members 35, 36. The carrier sheet 41, Fig. 5, is guided past the head 10 by the rollers 61, 62 which also move with the head, transversely across the sheet.
Patent GB-198091-A (GB)
Title: A new or improved device for supporting an umbrella or sunshade on the handle bar of a perambulator, bicycle or the like
IPC: A45B11/00
Filed: 1922-03-02
Abstract: 198,091. Loosley, E. M. March 2, 1922. No Patent granted (Sealing fee not paid). Attaching to perambulators, bicycles, &c.-An umbrella or sunshade is attached by straps 3, Fig. 1, to a semicylindrical plate 1, lined with felt, &c. which has a boss 5 cooperating with a boss 8 on a clamp 7. The faces of the bosses are serrated, one being concave and the other convex, and are maintained in the desired angular relation by a nut 9 on a screw 6, which projects from the boss 8. The clamp 7, which is attached to the handle-bar of the perambulator &c., comprises two curved portions 13 lined with felt &c. and pivoted together, a screw 15 and nut 16 effecting the clamping- action. The clamp 7 instead of gripping the handle-bar may surround a cross-bar 21, Fig. 2, of a bracket 20 secured to the side of the perambulator by screws or by a clamp 22. Specification 115,574 is referred to.
Patent GB-675402-A (GB)
Title: An arrangement for dispensing paste and like substances
IPC: B65D35/30
Filed: 1950-03-13
Abstract: 675,402. Extrusion apparatus. GADELIUS, K. M. March 13, 1950 [March 12, 1949], No. 6287/50. Class 102 (ii) An arrangement for dispensing tooth paste or like material comprises a stand 2 for attachment to a wall, a tube 7 secured to the stand at the top and having an outlet 11 at the bottom, and a piston 6 movable in the tube by a lever 15 to press out a portion of paste. The tube 7 is secured to the stand by a T- shaped spring member 12 passing through holes in the stand and pressing into a cardboard ring 8 secured to the inside of the tube. The lever 15, shaped to receive a tooth brush 17 at one end 16 and pivoted at the other end 18 to the stand, is loaded by a spring 22 and carries a screw 21 contacting a spring pressed disc 23 loosely surrounding the rod 4. An arm 25 passing through a slot in the lever 15 and constrained by a spring 28 on the lever supports a closing device 29 and a cut off device 32. On inserting the tooth brush, the lever 15 is rocked and with it the arm 25 to open the tube, the disc 23 is tilted to grip the rod 4, and to depress it to squeeze the paste onto the brush. On removing the brush the arm 25 moves to close the outlet and the disc rises on the rod assisted by the spring 24. To replace the tube the rod is withdrawn so that the constricted part 14 passes the spring 12 which then no longer grips the tube 7 which can be removed.
Patent GB-1359555-A (GB)
Title: Spool cores
IPC: B65H75/22
Filed: 1972-02-08
Abstract: 1359555 Roll core OMAL GROUP Ltd 8 Feb 1972 [9 March 1971] 6332/71 Heading B8M A cardboard or plastics core 12 for a copy paper roll to be mounted in a photocopier has cylindrical sockets 20 in one of its end faces engageable with corresponding pins (22), Fig. 4 (not shown) on a cheek plate (16) of a device adapted to rotatably mount the roll within the photocopier. There are four sockets spaced at clockwise intervals of 0, 160, 220 and 340 degrees. A second plain cheek plate may screw on to the mounting device to hold the roll thereon.
Patent GB-1533884-A (GB)
Title: Connection device for temporarily connecting two stages in a multi-stage turbine
IPC: F02C7/36
Filed: 1976-02-18
Abstract: 1533884 Gas turbine plant STAL-LAVAL TURBIN AB 18 Feb 1976 [19 Feb 1975] 06334/76 Heading F1G [Also in Division F2] In a ratchet clutch for connecting two stages of a multi-stage turbine wherein pawls 11 pivoted at 10 on a driving sleeve 8 are engageable with teeth 12 on a driven sleeve 9, the pawls are moved into engagement with the teeth by radially slidable pistons 14 when hydraulic or pneumatic pressure is supplied to cylinders 13. The pawls are biased to a disengaged position by springs 16. The pawls 11  may have holes 17 therein so that centrifugal force assists the action of the springs 16. The sleeve 9 is fast with a high-pressure turbine and the sleeve 8 is fast with a low-pressure turbine. The clutch is engaged when the low-pressure turbine is driven by a barring motor.
Patent GB-1398675-A (GB)
Title: Application of dyestuffs etc to textile web
IPC: D06B9/00
Filed: 1973-02-09
Abstract: 1398675 Dyeing textile material BRUCKNER APPARATEBAU GmbH 9 Feb 1973 [21 Feb 1972] 6419/73 Heading D1L A web 1 (Fig. 4) of textile material is dyed by passage over and in contact with a finite area of an embossed roller 2 the surface of which carries a dyestuff solution or other treating liquid containing an organic solvent. After dyeing &c the web may be passed through a chamber 13 filled with solvent vapour 12 before being dried in drying zone 4. The dyestuff solution &c may be applied to the roller by a spray 10 (Fig. 3) fed by pump 9 communicating with a bath 6 of dyeing liquor &c. Alternatively the embossed applicator roller may rotate in a trough containing the liquor (Fig. 2, not shown). For Figures see next column
Patent GB-194135-A (GB)
Title: Improvements in or relating to cop-winding machines
IPC: B65H54/14
Filed: 1922-03-04
Abstract: 194,135. Muller, F. [Firm of]. March 7, 1921, [Convention date]. Addition to 176,364. Winding-machines.-In a cop-winding machine in which the reciprocating motion of the rotating spindle is obtained from a cam mounted on the said spindle, as described in the parent Specification, the actuating cam is provided with an external groove 18 which actuates a runner 15 carried by a bracket 14 secured to the reciprocating spindle. The cam is driven through reduction gearing 11, 12.
Patent GB-932060-A (GB)
Title: A typewriter with half-dead keys
IPC: B41J25/20
Filed: 1960-02-24
Abstract: 932,060. Typewriters. OLYMPIA WERKE A.G. Feb. 24, 1960 [March 2, 1959], No. 6479/60. Class 100 (4). In a typewriter in which letter-spacing is omitted when certain keys 1 are depressed and then only in a certain case-shift position, the escapement mechanism 17 is operated by a yoke 15 which is raised and lowered, as shown at A by case shift operation, the yoke being actuated by a lever 14 on a shaft 12 rocked by lever 11, link 10 and a bail 8 to which type actions are connected as required by hooked-on links 6. Operation of the lever 14 causes contact with the edge 15a of the yoke 15 in only one caseshift position.
Patent GB-323957-A (GB)
Title: Improvements in means for adjusting and fastening the bands or webbing used in connection with stocking suspenders, braces and the like
IPC: A41F11/12
Filed: 1929-02-28
Abstract: 323,957. Walker, Ltd., T., Walker, G. T., and Wood, H. H. Feb. 28, 1929. Clips, lever, for suspenders, braces, and the like, comprise a plate having two slots 1, 2 and three bars 3, 4, 5, a toothed gripping lever 6, 8 being pivoted to the central bar 3, as by bent lugs 7. As shown, one end of a strap 9 forming an adjustable loop carrying a suspender-grip 10 is permanently secured to the lower bar 5. The other end is passed rearwardly through the lower slot under the gripping edge 8 of the lever, and forwardly through the upper slot. The plate is bent as shown so that the central bar is displaced from the plane of the other bars.
Patent GB-197773-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1922-03-06
Abstract: 197,773. Rogers, F. H., (Eclipse Machine Co.). March 6, 1922. Turning-gear.-An engine starter comprises a driving shaft on which are mounted (1) a driving- member such as a pinion 11 having a free axial and rotary movement, and (2) a control member 19 having automatic axial movement and rotating with the shaft, clutch means being provided for connecting the members 11, 19 for positive driving after the member 11 is stopped in its axial movement. In the form the control member 19 is a nut mounted on a screw-thread 3 on a sleeve 4 driven through a spring 9 from the armature shaft of an electric motor; and the pinion 11 has a smooth bore. The members are normally held in the position shown by a spring 14 between a stop 5 and a slidable collar 15, and by a spring between the members 11, 19. Discs 16, 20 on the members 11. 19 are provided respectively with grooves 18 and ribs 22, the grooves being wider and slightly deeper than the ribs. When the starting motor drives the shaft 2. the members 11, 19 move axially until the collar 15 is arrested by the stop 5. The discs 16, 20 are then in contact and the pinion is positively driven through the. ribs 22 and grooves 18.
Patent GB-704166-A (GB)
Title: Improvements in or relating to luminescent indicators of voltage
Inventor: KEMP ROLAND JOHN
IPC: H05B33/26
Filed: 1951-03-19
Abstract: 704,166. Applications of luminescence. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 13, 1952 [March 19, 1951], No. 6584/51. Class 39(1) [Also in Group XXXVI] Apparatus for providing an indication of the values of two voltages by producing a dark spot on a luminescent indicator screen, comprises a layer of transparent insulating material 1, covered on.either side with a series of parallel conducting strips 2, 3 running at right angles to each other, over which is applied a layer 4, 5 of electro-luminescent suspension followed by a further series of mutually perpendicular conducting strips 6, 7. One voltage to be indicated is applied to all the strips 6, while a range of voltages containing the voltage on 6 is applied to successive conductors of strips 2. Thus between one conductor 6 and two conductors 2 there will be little or no potential difference, producing a non-luminescent strip across the screen. The other two grids 3, 7 are similarly employed to' produce a dark strip indicative of the other unknown voltage, thus forming a black spot where the dark strips cross whose position gives the values of the applied voltages.
Patent GB-410938-A (GB)
Title: Improvements in or relating to automatic spreading machines for flax
IPC: D01B5/00
Filed: 1933-03-04
Abstract: 410,938. Spreading-machines for flax. EWART & SON, Ltd., W., 17, Bedford Street, and RADCLIFFE, F. W., Crumlin Road Mills, both in Belfast. March 4, 1933, No. 6594. [Class 120 (i).] In a spread board for flax an air pipe B and nozzles b are provided to blow a jet of air upon the pieces of flax in the direction of travel of the conveyer A so as tc prevent the ends curling back.
Patent GB-332896-A (GB)
Title: Improvements in devices for the maintenance of telegraph, telephone or signalling lines
IPC: H04M3/28
Filed: 1929-02-28
Abstract: 332,896. Viard, G. Oct. 18, 1928, [Convention date]. Addition to 307,458. Locating faults.-Leakage faults in phantomed telephone quads are located by employing the means for testing for faults described in the Parent Specification, the middle point of the phantom transformer of a faulty quad being connected to that of a sound quad, any known loop test being employed. When a sound quad is unavailable, similar batteries E,r are connected in series at each end of the faulty quad, a variable resistance R<1> being located in series at the testing end. An auxiliary circuit is preferably employed and comprises a battery 2(E,r), a fixed resistance R equal to the resistance of the faultless quad and an adjustable resistance R<2> equal to the, resistance R'. The resistances R<1>, R<2> are adjusted until the voltage drop in the auxiliary circuit is equal to that in the circuit through the leak to earth, the location of the fault in terms of resistance X from the testing end of the quad being equal to R-R<1>/2.
Patent GB-159820-A (GB)
Title: Improvements in beater rolls
IPC: D21D1/02
Filed: 1921-02-28
Abstract: 159,820. Bidwell, G. L. March 1, 1920, [Convention date]. Pulping-engines. - A beater roll for Hollanders comprises segments 5 having integral knives 7 secured bv screws 6 to spiders 2, 3 the segments having lapped joints filled with sheet or molten lead while their ends project and form a recessed end which is closed by end-plates 8. Bangers 9 comprising ribs secured to the end-plates or integral therewith prevent the accumulation of pulp between the sides of the roll and the walls of the vat.
Patent GB-264358-A (GB)
Title: Improvements in bases for current collectors for electric railways
IPC: B60L5/16
Filed: 1926-03-10
Abstract: 264,358. Fischer de T¾var¾s, J. March 10, 1926. Supporting arrangements for collectors.-The raising-springs 4a, 4b are connected to arms 7 pivoted at 6 to the trolly pole 3 in such a way that, as the pole approaches the horizontal position, the inclination of the operative arm 7 increases with the decrease of the inclination of the pole. This is effected either by the stop 8, Fig. 1, carried by the pole or by links 10, Fig. 3, p:voted to the base. In the latter arrangement, the position of the pins 6, 9 and the lengths of the arms 7 and links 10 may be arranged to give an approximate constant pressure to the operative spring, but the sum of the lengths 7, 10 must be greater than the sum of the distances of the pivots 6, 9 from the main pivot 2. Reference has been directed by the Comptroller to Specification 200,316.
Patent GB-674880-A (GB)
Title: A new or improved device for weeding and cultivating
IPC: A01B1/12
Filed: 1949-03-12
Abstract: 674,880. Weed-extractors; rakes. HUMPHRIS, G. F. March 13, 1950 [March 12, 1949], No. 6803/49. Class 6(ii) Weed-stems are wedged between tapering teeth 2 projecting from the blade 1. After uprooting, the weeds are dislodged by reversal of the tool blade, and collected by the more widely-toothed other edge 4 of the blade.
Patent GB-249138-A (GB)
Title: Improved manufacture of charcoal
IPC: C01B31/12
Filed: 1926-03-11
Abstract: 249,138. Urbain, E. March 12, 1925, [Convention date]. Materials for making coke and other products. -A vegetable material such as peat, wood, straw, corozo nut, starch, glucose, or lignite, is mixed with bi-calcium phosphate and sulphuric acid and the resulting paste, preferably after agglomeration, is calcined until a portion of the phosphorus is removed as hydrogen phosphide &c. and the remainder is retained in the form of tri-calcium phosphate. When the vegetable material is already partially carbonized, as in the case of lignite, the sulphuric acid may be omitted.
Patent GB-993254-A (GB)
Title: Improvements in or relating to games
IPC: A63F9/02
Filed: 1962-02-21
Abstract: 993,254. Indoor games. A. POHLENZ. Feb. 21, 1962 [Feb. 23, 1961], No. 6831/62. Heading A6D and A6H. In order to promote the temporary adhesion of members which are brought into engagement with each other during the playing of a game, one member is covered with a plastics fabric comprising a hook-like pile, and the other member is covered with a fabric adapted to be engaged by the filaments of the said hook-like pile when the two members are brought into contact. As particularly described, one member comprises a target board 1 having a base of elastomeric material to which are fixed variously coloured strips 2 of a plastics material having a hooked pile, whilst the projectile comprises a ball 8 having an elastomeric core and a felt or woollen covering. Alternatively, the coverings of the target board and ball could be interchanged.
Patent GB-702900-A (GB)
Title: Improvements in or relating to a windshield cleaner
IPC: B60S1/38
Filed: 1951-05-04
Abstract: 702,900. Windscreen wipers. TRICO PRODUCTS CORPORATION. May 4, 1951. [May 10, 1950], No. 6877/53. Divided out of 702,849. Drawings to Specification. Class 138 (1) A rubber windshield cleaner squeegee comprises an elongate body of triangular shape in cross-section with a wiping edge along one apex, an anchoring bead also of a triangular shape in cross-section inversely arranged relative to the body with their base faces opposing one another and a reduced flexible neck joining the opposing base faces to form oppositely facing grooves. The subject-matter of this Specification is disclosed in Specification 702,849. Specification 702,899 also is referred to.
Patent GB-993555-A (GB)
Title: Improvements in or relating to fittings for roof gutters
Inventor: KIRKPATRICK WILLIAM RONALD
IPC: E04D13/064
Filed: 1961-02-24
Abstract: 993,555. Gutters. ASSOCIATED BUILDERS MERCHANTS Ltd. April 19, 1962 [Feb. 24, 1961], No. 6931/61. Heading E1V. [Also in Division A4] A polyvinyl chloride gutter connection piece 1, of channel section, has in- and down-turned flange edges 2 which grip the adjacent guttering, neoprene or sponge-rubber sealing strips 17, longitudinal ribs 10 and a transverse rib 7. Other embodiments (not shown) are a rightangled connection (Fig. 2), a gutter end stop (Fig. 3), and a T-piece, (Fig. 4).
Patent GB-609753-A (GB)
Title: An improved condenser trumpet or funnel for textile draw frames
IPC: D01H5/72
Filed: 1946-03-06
Abstract: 609,753. Sliver guides. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, and DAKIN, G. March 6, 1946, No 6952. [Class 120(i)] A sliver is consolidated by drawing through a progressively restricting passage, the consolidation being effected in a series of defined stages of compression with an intervening stage or stages of compression control in which there is little or no increase of compression, there being no intervening release of compression between the compression stages. As shown, a known type of trumpet 4 is bored at 6 to take an adaptor nozzle 1 having a flared portion 8, a portion 9 of uniform diameter, a converging portion 10 and a further short length 11 of uniform bore. Sliver compression takes place at 8 and 10 in addition to initial compression at the entrance of the trumpet bore. The bore 11 defines the final compression of the sliver and reduces the effect of wear; radiusing of the outer end of the passage can be removed by grinding. When an obstruction occurs. the adaptor nozzle 1 can be removed easily and a new one fitted. In a modification, a trumpet is bored to provide an internal shoulder on which the adaptor nozzle rests. Instead of being detachable the adaptor nozzle may be formed integral with the trumpet or fixed thereto by welding &c.
Patent GB-272590-A (GB)
Title: Improved automatic fastening device
IPC: G05G1/12
Filed: 1926-03-13
Abstract: 272,590. Woollett, T., and Box, H. H. March 13, 1926. Knobs and handles, attaching.-For securing knobs, handles, dials, and like fittings to screwed spindles, particularly of wireless apparatus, the knob is provided with a flat plate having a central hole and slotted to form resilient tongues which act as a nut when turned on the spindle, but which yield sufficiently to allow it to pass on to the spindle. As applied to a knob 6 secured to the spindle 9 of a condenser for wireless apparatus, a thin metal circular plate 1 provided with slots radiating from a central hole 3 to form resilient tongues is clamped between the knob 6 and a dial 10. A washer 7 serves as an abutment for the dial. When the knob is thrust on to the screwed spindle 9 the tongues yield and then act as a nut when the knob is turned. A lock nut 11 is provided, and the vernier spindle 14 passes through a hole 12 in the knob. The knob 13 on the. spindle 14 may be provided with a resilient slotted plate similar to the plate 1. In a modified construction, a squared slotted plate is secured in a recess in the knob.
Patent GB-330283-A (GB)
Title: Improvements in wood working machine
IPC: B27C5/00
Filed: 1929-03-04
Abstract: 330,283. Balzi, C. A., and Juravcoff, P. N. March 4, 1929. Carving.-In a woodworking machine an overhanging arm 2 is attached to the base 1 and carries a vertical shaft 6 to which is attached the cutter 7 protected by suitable guards 22 and 23. A guide 17 is adjustably mounted on an adjustable bracket 18. The cutter is driven by the belt 12 from pulley 14 mounted on the base.
Patent GB-955069-A (GB)
Title: Improvements in or relating to methods of producing vacuumtight sintered bodies of insulating material
IPC: H01J1/24
Filed: 1962-02-23
Abstract: <PICT:0955069/C1/1> A vacuum-tight insulating body is made by filling a mould, in vacuo, with a homogeneous suspension of charged particles in a liquid which contains an electrolyte, and which constitutes not more than 20% by weight of the suspension. The liquid is then evaporated and the residual mass sintered.  The method may be used for the production of insulating bodies for securing and locating electrical leads, components and parts thereof, and, as shown, for locating a heater 3 within a cathode 1, 2.  The heater may be first coated with a thin insulating layer by cataphoresis, and is wetted by insertion in a suspension of charged, insulating particles in vacuo before being inserted in a similar suspension in molybdenum cathode body 1, 2, the body and/or the coil being vibrated initially.  The insulating material may be aluminium oxide, magnesium oxide or beryllium oxide and the liquid may be water with a pyro-phosphate as electrolyte. Sintering may be effected at 1600 DEG  C. in vacuo or in hydrogen.  Reference has been directed by the Comptroller to Specification 868,431.