baber/WOPTO huggingface dataset:
Patent GB-687087-A (GB)
Title: Voice frequency signalling in telephone systems
IPC: H04Q1/446
Filed: 1950-11-02
Abstract: 687,087. Automatic exchange systems. AUTOMATIC ELECTRIC LABORATORIES, Inc. Nov. 2, 1950 [Nov. 22, 1949], No. 26794/60. Class 40 (iv). A signal receiver which can be used in place of that used in the system described in Specification 600,737 can receive and transmit frequency-modulated, e.g. 2000 ~ at 60 ~, dial and supervisory signals over an associated fourwire toll line 1161, 1162, Fig. 1. Incoming signals are passed through a tuned amplifier 1 and a limiter 2 to a demodulator which feeds the final amplifier 3. A relay 30 is operated from the associated repeater when dialled impulses are to be received so that the signal relay 40 sends corresponding pulses to the repeater over a pair of outgoing conductors 1163, 1164. Otherwise with relay 30 back, a condenser 18 introduces a short delay and the signal relay 40 repeats the pulses over conductor 1163 alone. Frequency-modulated signals in the reverse direction are generated by a valve reactor 5 connected to an electron-coupled Hartley oscillator 6 which feeds an amplifier 4, or, alternatively, relay 20 is operated to send pure carrier signals. In a modification, Fig. 2, the dialled impulses are pulses of unmodulated carrier and are passed through filters to a class B amplifier 7 actuating a second signal relay 50. When noise is present, triode 8 back-biases the amplifier 7 to prevent false operation of relay 50. A modified demodulator using a double - diode tube in place of the rectifiers 16, 17 is also described. Specification 503,497 also is referred to.
Patent GB-1041647-A (GB)
Title: Lead-in wire orienting apparatus
IPC: H01J9/28
Filed: 1964-06-29
Abstract: 1,041,647. Making electric lamps. SYLVANIA ELECTRIC PRODUCTS Inc. June 28, 1963, No. 26834/64. Heading H1J. Apparatus for locating a lead-in wire projecting from an end of a tubular lamp envelope comprises means for rotating the envelope about its longitudinal axis and detecting means lying in the path traversed by the wire during the rotation, engagement of the detecting means by the wire actuating control means the electrical circuit of which is wholly external to the envelope to terminate the rotation of the envelope. The means for rotating the lamp comprises a pair of wheels 30, 32 which are mounted on shafts 26, 28 continuously rotated by a sprocket chain 38 driven by an electric motor 44. The shafts are journalled in bosses 14b, 16b on a pair of yokes 14, 16 having forwardly extending legs 14c, 16c pivoted between brackets 18 and 20 (not shown) mounted on a baseplate 10. The yokes are biased to tilt the wheels 30, 32 into contact with a lamp tube 3 by means of springs 24 which are mounted on pins 22 and bear against rearwardly extending plates 14e, 16e of the yokes. The yokes further have depending legs 14d, 16d carrying respective rollers 46, 48 riding on the lower and upper faces of a spring- loaded slide 50 which carries the detecting means at its forward end. The sequence of operations is as follows. On arrival of a lamp 3 at the orientating station the wheels 30, 32 are closed into contact with the lamp which then begins to rotate. In due course one of the lead-in wires 4 abuts the feeler finger 86 of the detecting means, which normally completes a circuit between contacts 82 and 84, and deflects the finger away from the contact 82. The breaking of this circuit energizes a solenoid 78 causing the plunger 76 to advance and tilt a pivoted link 70 to retract the slide 50 against the action of a spring 60. The slide has a pair of inclined faces 50a which move between the rollers 46, 48 as the slide retracts and separate the rollers thereby tilting the yokes 14, 16 and moving the wheels 30, 32 out of contact with the lamp tube. The lamp 3 with its wires correctly orientated is now indexed to the next work station and a further lamp is positioned between the wheels. A cam-operated timing switch keeps the solenoid 78 energized until the further tube is in position, de-energization of the solenoid permitting the slide 50 to move forward under the action of the spring 60 to bring the detecting means into its operative position and to close the wheels 30, 32 on to the tube. A cam-operated switch is also provided to open the circuit across the contacts 82, 84 at a suitable stage in each operating cycle so that the wheels separate to receive the next tube even if no tube is present at the station. The feeler finger is set to detect the lead-in wire 4 a predetermined distance before the lead-in wires reach the desired location to allow for the time delay which occurs before the wheels actually separate.
Patent GB-1063862-A (GB)
Title: Process for manufacturing a flexible re-sealable container
IPC: B65D33/20
Filed: 1964-06-30
Abstract: 1,063,862. Making plastics bags. E. W. PLATT. June 30, 1964 [July 8, 1963], No. 26970/64. Heading B5D. [Also in Division B8] A line of bags formed by transversely sealing at (7) . . . (11) (Fig. 3, not shown) a longitudinally folded thermoplastic web, are closed by an adhesive strip 2 (Fig. 7) secured to an inturned margin 19, and permitting the bags to be opened and re-sealed. A further pocket 18 may be closed by a flap 17 secured to the bag wall 14 by,a strip 12 having adhesive on both sides. The pocket 18 may be omitted. A line of weakness down the centre of each transverse heat seal (8) ... (11) (Fig. 3, not shown) may permit the bags to be separated. The line of bags may be rolled in a dispenser provided with a sharp edge for separating the bags.
Patent GB-206163-A (GB)
Title: Improvements in and relating to the treatment of rubber latex and the like
IPC: C08C1/02
Filed: 1923-10-29
Abstract: 206,163. Bostock, N. S. Oct. 30, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Latex, treating.-Caustic soda, with or without known preservatives such as phenol, formaldehyde, or ammonia, is added to latex to prevent coagulation.
Patent GB-1039865-A (GB)
Title: Viewfinder for photographic camera
IPC: G03B13/02
Filed: 1963-07-08
Abstract: 1,039,865. Viewfinders. VOIGTLANDER A.G. July 8, 1963 [July 7, 1962], No. 27018/63. Heading G2J. A plane-parallel sided cover plate which closes the rear of the housing containing an "Albada" viewfinder is arranged at an angle to the optic axis so that substantially all rays reflected at its surfaces are deflected away from the observer's eye. As shown the cover plate may comprise two elements 23, 24 having a frame of reflecting material between them. The cover plate is mounted so that the top is inclined forwardly with respect to the optical axis and the interface is inclined rearwardly with respect to the same axis. Rays, e.g. ray 25, are reflected from the front and back faces of the plate to strike a concave semi-reflecting surface 4 and are reflected out of the line of vision of an eye 3. In a modification, Fig. 4 (not shown) the plate is inclined about its vertical axis.
Patent GB-1118189-A (GB)
Title: Improvements in or relating to the bonding of micapaper
Inventor: ASHPOLE RAYMOND SIDNEY
IPC: H01B3/04
Filed: 1964-07-01
Abstract: Mica paper impregnated with dilute phosphoric acid is hot pressed at 200-400 DEG  C. and fired at 400-500 DEG  C.  The acid may be added to mica pulp prior to formation of the paper, or may be applied to preformed paper by spraying or brushing.  The concn. of the acid may be 20-25% by wt.  Hot pressing may be effected under 20-300 lb./in.2 pressure.  Several sheets can be pressed together and are thereby bonded.  Firing may be effected with or without pressure.  Insoluble phosphates are said to form. The paper my be 0.0018 to 0.005 ins. thick.ALSO:Mica paper impregnated with dilute phosphoric acid is hot pressed at 200-400 DEG C and fired at 400-500 DEG C.  The acid may be added to mica pulp prior to formation of the paper, or may be applied to preformed paper by spraying or brushing.  The concentration of the acid may be 20-25% by wt.  Hot pressing may be effected under 20-300 lb/in2 pressure.  Several sheets can be pressed together and are thereby bonded.  Fixing may be effected with or without pressure. Insoluble phosphates are said to form.  The paper may be .0018 to .005 ins. thick.
Patent GB-396574-A (GB)
Title: An improvement in inking rollers for printing machines
IPC: B41N7/06
Filed: 1932-09-30
Abstract: 396,574. Printing-machines. CROWLEY, H. F., 25, Belmont Road, Ilford, Essex. Sept. 30, 1932, No. 27191. [Class 100 (ii).] An inking - roller serving also as an ink container is made of pottery, natural stone, or like porous material, or of segmental pieces of wood held together by y interengaging tongues or dowel strips, to provide a rigid inking- surface. The cylinder wall b and impermeable side walls a enclose a chamber c, which has a normally-plugged filling aperture d. In the case of a long roller, internal webs or partitions may be furnished, or a number of separate short rollers may be interchangeably mounted side by side on a common spindle e and held thereon by a collar f and a nut g. The separate rollers or partitions may be filled with differently coloured inks and a thin layer of impervious material h may be inserted to prevent intermingling of the inks. The wall b of each roller, when made of wood, is built up of segments held concentric with the spindle by interengaging tongues j and grooves k, the parts being held together by screws l, and the segments united circumferentially by interengaging tongues and grooves or by dowel strips. In a modification, the partitions are formed by radial longitudinal ribs, which also serve to support the segments of the cylinder wall.
Patent GB-1061708-A (GB)
Title: An evaporator crystalliser,particularly for use in the sugar industry
IPC: C13B30/02
Filed: 1965-06-28
Abstract: 1,061,708. Evaporators; crystallizing sugar. BRAUNSCHWEIGISCHE MASCHINENBAUNSTALT. June 28, 1965 [July 22, 1964], No. 27285/65. Heading B1B. In an evaporator crystalliser for sugar juices to which juice is introduced initially through a valved inlet 3 and is circulated by means of a propeller 9 up through tubes 7 in a heating chamber 6 and down through a central tube 8, further fresh juice is introduced during the crystallisation process through a distributor 14 which has its outlet(s) upstream of the propeller such that the fresh juice emitted comes immediately under the direct action of the propeller. The distributor consists of a chamber 14 which concentrically surrounds the propeller shaft and has tubular arms 19 having outlets 17 at their lower ends.
Patent GB-1406943-A (GB)
Title: Method of and an apparatus for the production of porous  plastics
IPC: C08J9/30
Filed: 1973-06-08
Abstract: 1406943 Aerating liquids BAYER AG 8 June 1973 [8 June 1972] 27342/73 Heading B1C [Also in Division C3] An apparatus for producing porous plastics from liquid precursors for a plastics material comprises a plurality of capillaries, 3, (e.g. in the form of bushings each of which contain a bundle of hexagonally close-packed copper wires of the same diameter which are arranged in the bottom, 1, of a container, 2, and which all communicate with a pressure connection, 4, suitable for feeding gases into liquid systems. The capillaries may be formed by (the spaces between) copper wires coated with polyethylene, and a plurality of the capillaries may be enclosed within a glass tube.
Patent GB-209205-A (GB)
Title: Improvements in a device for sowing and distributing flower, vegetable, and other like seeds
IPC: A01C7/02
Filed: 1922-10-11
Abstract: 209,205. Sells, W. Oct. 11, 1922. Envelopes having apertures near the crease line of the flap for effecting the sowing of seeds contained in them are provided with means for rendering the apertures temporarily ineffective. The envelopes may be provided with two flaps 8, 11, Fig. 1, and with holes 9, in the inner flap near the crease, line 10. Both flaps are fastened down over the cut-away part 14 after the seeds have been placed in the envelope. When the seeds are sewn the outer flap 11 is removed and the edges 12, 13 of the envelope pressed towards one another to form the container into a somewhat cylindrical shape, the seeds being shaken out through the apertures. In a modification, the outer flap is dispensed with and the envelope 7 inserted in a second flap, which may be transparent. In another modification, the envelope 7 is placed in a folded wrapper or label, which projects beyond the perforations 9, and may contain printed matter. The edges of the wrapper are stuck together or to the envelope. In another modification, the wrapper projects beyond three sides of the envelope. In another, it is only large enough to cover the upper part of the envelope. Threads or strips may be provided to facilitate the removal or rupture of the outer flap or the wrapper or label. In the modification shown in Fig. 6, removable staples or stitches along the line 18 separate the perforated part from the body of the envelope. The apertures 9 may be of various shapes and sizes and may be arranged in two or more rows.
Patent GB-1181644-A (GB)
Title: Electrical Connector Assembly
IPC: H01R12/18
Filed: 1968-06-11
Abstract: 1,181,644. Electric couplings. AMP Inc. 11 June, 1968 [26 June, 1967], No. 27628/68. Heading H2E. An electrical connector, e.g. a printed circuit edge connector EC (Fig. 1), comprises an insulating housing 1 containing contact elements 2, formed integral with posts 4 which extend beyond the housing 1 through cylindrical projections 6, 6a in its base 5. The connector is designed for use with a mounting member 7 containing a plurality of holes 8, 81 to receive the projections, which are firmly gripped by protrusions 9 (Fig. 3) in the holes, these protrusions biting into the material of the projections. The projections 6, 6a are respectively longer, and shorter than the thickness of the mounting member 7. If the mounting member is of metal, earthing connection to it may be made by means of a metal collar 10, which is inserted into a hole 8<SP>1</SP> which receives a short projection 6a. The collar has sharp grooved outer edges 12 which scour the inner edge of the hole, so making good electrical contact, and two pairs of inner spring fingers, one pair of which scours the surface of the inserted contact post 4<SP>1</SP>, so making good contact, and the other pair providing lateral support if required.
Patent GB-1417383-A (GB)
Title: Admixing apparatus for fire-fighting by means of foam
IPC: A62C5/00
Filed: 1974-06-21
Abstract: 1417383 Mixing fluids in controlled proportions ALBACH & CO 21 June 1974 [22 June 1973] 27633/74 Heading B1C Apparatus for mixing foam forming liquid and water in constant proportion comprises a pump 2 drawing water from a container I and having a recirculation duct 20 in which is a jet pump 10 which induces foaming agent from a container 8 through a flow control valve 12. The valve is actuated by a float 4 in a conical portion 13 of the foam discharge line through a lever 15 which has a movable fulcrum 16 whereby the proportions of the constituents may be altered. In another embodiment (Figs. 2 and 3, not shown) the valve is rigidly connected to the float by a rod (5) and the proportions of the constituents are altered by rotating a sleeve (11) in which the valve member slides to adjust the size of the inlet port (25) thereto.
Patent GB-928803-A (GB)
Title: Resin complexes of amines
IPC: A61K47/48
Filed: 1959-08-13
Abstract: A resin complex of formula <FORM:0928803/IV(a)/1> wherein R is H, C1 to C6 alkyl, C1 to C6 alkoxyl, nitro, halogen or methylenedioxy, X is hydrogen or halogen and A is the anion of a sulphonic acid cation exchange resin, is prepared by hydrolysing the corresponding N-formyl compound <FORM:0928803/IV(a)/2> to the amine and then reacting the amine with a sulphonic acid cation exchange resin.  Preferably both R and X are H, and the complex is prepared by heating an aqueous mixture of the N-formyl compound, the resin and a mineral acid.  The examples illustrate the formation of a complex of phenyl-t-butylamine and a sulphonated styrene copolymer.  Specifications 577,707, 726,782 and 824,337 are referred to.
Patent GB-339676-A (GB)
Title: Improvements in or relating to the manufacture of goods of or containing rubber or similar resins
IPC: B29D99/00
Filed: 1929-09-13
Abstract: 339,676. Dunlop Rubber Co., Ltd., Gorham, W. G., and Murphy, E. A. Sept. 13, 1929. Indiarubber threads &c. are made by cutting an unvulcanized sheet produced directly from latex &c., and subsequently vulcanized, after skeining if desired. The sheets may be made from a dispersion prepared according to Specification 290,313 bv the process described in Specification 302,201.
Patent GB-465596-A (GB)
Title: Improvements relating to visible index filing systems
IPC: B42F17/18
Filed: 1935-10-09
Abstract: 465,596. Visible - card indexes. LIBRARY BUREAU, Ltd., and JACKSON, A. R. (Schmid, H.) Oct. 9, 1935, Nos. 27902 /35 and 28226 /36. [Class 146 (i)] A card or a card-holder a for a visible-card index system is provided with a bent-back part k at one edge which is itself bent-back at b in the reverse direction at its free edge or has secured to it a part that bends back, so as to form a V-shaped structure the open end of which is accessible for the entry of the apex of the V-shaped structure of an adjacent card or holder, the V-shaped structure being obstructed along a line parallel to the edge of the card and displaced from its apex so as to prevent complete entry of the V-structure of the adjacent card and thus cause the cards to be displaced relatively in order to give the desired overlapping relationship. In one form, the obstruction consists of a V-shaped part c, Fig. 3, formed integrally with the part band secured to the upper part a<1> of the part k by staples d, holes e being provided in the parts b, c, to facilitate the stapling. The free edge of the part c may extend beyond the part b for stapling, no perforations e then being required. The parts a, al, b, c, may be separate strips attached to one another, for example by stapling, or the part k may be attached to the holder or card a by press buttons. Further, the part a<1> may be made of stouter material than the holder a or may be reinforced. The ends of the parts a<1>, b, c are arranged to project beyond the holder a for engagement beneath the side flanges of a drawer or holder. The index cards proper may rest in the folds between the parts a, k and project at their upper edges, or parts of the upper edges of the holders a may be cut away at o to expose the upper edges of the cards. In a modification, the part c may be formed by bending back the edge of the part k, so that the parts b, a<1> are extensions of the part c. The V-shaped structures may be slightly truncated if desired. In a modification, the part c is dispensed with, and the spacing obstruction formed by fastening the part b to the part k along a horizontal line parallel to and spaced from the fold between the parts a<1>, b. A celluloid sheath m is placed on the free edges of the holders to assist in retaining the index cards or to receive index tabs. A carrier for a series of cards or card holders as described comprises a back u, Fig. 9, with a metal trough s at its bottom end and a flange t for engaging the ends of the assembled holders and holding them against disengagement. The flange t is secured to the back u in spaced relationship and is formed on a sheet w secured to the upper edge of the back u in inclined position to support the holders so that the visible part of the index is approximately parallel to the back. Carriers u are adapted to be stacked in a drawer having hinged ends and in some cases hinged partitions.
Patent GB-1081345-A (GB)
Title: Silicic acid esters and lubricants and hydraulic fluids derived therefrom
IPC: C07F7/04
Filed: 1965-07-07
Abstract: A synthetic lubricant or power-transmitting fluid comprises at least 5 vol. per cent of one or more diorthosilicic acid esters of the formula A(OSi)2(OR)6- n(OR1)n wherein A is a 2-24 C alkanediol residue, each R (individually the same or different) is a polyoxyalkylene glycol ether residue with 1-4 etheric O atoms, each R1 (individually the same or different) is an alkyl radical with up to 3 C atoms, and n is 0, 1, 2, 3 or 4: together with up to 95 vol. per cent of another lubricant, e.g. mineral or ester oils (see also Division C3).ALSO:Novel diorthosilicic acid esters have the formula A(OSi)2(OR)6- n(OR1)n wherein A is a 2-24 C alkanediol radical, each R (which may be the same or different) is a polyoxyalkylene radical with 1-4 etheric C atoms, each R1 (which may be the same or different) is an alkyl radical with up to 3 C atoms, and n is 0, 1, 2, 3 or 4, and are prepared by conventional means: e.g. by reacting SiCl4 with the requisite mono- and di-ols in appropriate proportions. Suitably n = 0 or 3, A is the residue of ethylene glycol, 2,2 - dimethyl - 1,3 - propanediol or isononadecanediol, R1 is an isodecyl or isotridecyl radical, and R is the radical of diethylene glycol n-butyl ether.  The novel esters are stated to be of value as synthetic lubricants and power-transmitting fluids (see Division C5).
Patent GB-483470-A (GB)
Title: Improvements in or relating to collapsible furniture
IPC: A47B3/08
Filed: 1936-10-15
Abstract: 483,470. Collapsable furniture. FREE- 'STONE, A. H. Oct. 15, 1936, No. 27976. [Classes 52 (ii) and 52 (iii)] In articles of furniture having folding legs 48, 51 a member 53 is movable axially of the legs from a stowed position to a position in which it prevents collapse of the legs. As shown the member 53 comprises a shelf having cut-away corners and which in the folded position lies beneath the table top 46 and falls, when the table top is held by its edges, to extend the legs, the downward movement being limited by rungs 52 joining the pairs of legs. In a modification the shelf is provided with key-pieces which slide in longitudinal grooves in the legs and have notches which interlock with plates at the lower ends of the grooves. Fig. 6 shows a further modification in which the shelf 32 is connected to each of the legs 18 by a rod 43 pivoted at 44 to brackets 45 on the shelf and telescoping in a tube 40 secured in a recess 42 in the leg. When the shelf falls it swings the legs to their extended position, the downward movement being limited by the engagement of the brackets 45 with the upper ends of the tubes 40. The shelf may be cut away to provide knee room or may be replaced by a frame. Reference has been directed by the Comptroller to Specifications 4948/05, [Class 52], 286,326, [Class 52 (iii)], and 350,843.