baber/WOPTO huggingface dataset:
Patent GB-151016-A (GB)
Title: Process for the manufacture of condensation products of formaldehyde and carbamide or carbamide derivatives
IPC: C08G12/12
Filed: 1920-09-14
Abstract: Condensation products are obtained from aliphatic aldehydes, particularly formaldehyde, and urea, urea derivatives, or thiourea, by reaction of the components under application of heat in the absence of any condensing agent.  Reaction for a short period gives a water-soluble product, which may be employed as an adhesive for cementing glass, metal, &c.ALSO:Condensation products are obtained from formaldehyde and urea, urea derivatives, or thiourea, by reaction of the components under application of heat in the absence of any condensing agent. Reaction for a short period gives a water-soluble product, which may be employed as an adhesive for cementing glass, metal, &c., or as a stopping for teeth, or as a lacquer, or for impregnating fabrics, e.g. the planes of aircraft; when dried it is insoluble. Reaction for a longer period gives a gelatinous elastic product insoluble in water or alcohol, which may be used as a rubber substitute.  Heating this product to 80 DEG  C. gives a hard inert substance, which may be used as a substitute for celluloid. Examples are given of the preparation of these several products from formaldehyde and urea or thiourea.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of aliphatic aldehydes in general, and of acetyl- or benzoyl-urea, in the process.  This subject-matter does not appear in the Specification as accepted.
Patent GB-519025-A (GB)
Title: Improvements in conveyors
IPC: B65G25/02
Filed: 1938-09-09
Abstract: 519,025. Step-by-step conveyers. GIBBONS BROS., Ltd., MARLE, M. V., and WEBB, A. W. OGILVY-. Sept. 9, 1938, No. 26399. [Class 78 (i)] Conveyers for conveying goods step - by - step through furnaces by lifting them from supports or alternatively by elevating pushers to engage behind them, moving them' forward horizontally and then lowering them again on to the supports at each cycle of operations, comprise secondary elements, which, in reciprocating, first raise or lower a' series of separate primary elements ' and then carry them along for the latter part of the stroke in each direction. Fig. 1 shows members 26 reciprocated in any convenient manner. On the forward stroke towards the right, the initial movement raises the pivoted levers 20 which lift the articles from fixed side supports, and the continued movement, after the roller 30 strikes the stop 34, carries the sliding frame 40 and the levers 20 also to the right. On the return stroke the levers 20 are initially lowered to deposit the articles, and the frame 40 is retracted with the members 26 when the roller 30 strikes the stop 33. Fig. 6 shows a modification in which the reciprocating member 45 forms the article support and initially on each stroke moves relatively to the inclined member 47 before carrying the latter along with it. In a further modification shown in Fig. 10, the wheeled members 47 are the reciprocating members and are additionally connected to the supporting members 45 by links 64. In another construction these links form the sole connection between 47 and 45. the inclined surfaces on 47 being omitted. These links co-operate with end stops on the members 47. Fig. 14 shows a reciprocating member 82 which by means of a pin 81 swings the lever 79 to elevate or depress the noses 85 into and out of an article-pushing position. When the stops 83 or 84 contact the respective members 82, 75, the members 75, 79 and 82 move as a unit.
Patent GB-1038495-A (GB)
Title: Improvements in or relating to maser devices
IPC: H01S3/093
Filed: 1963-07-03
Abstract: 1,038,495. Flash bulbs. J.DeMENT. July 3, 1963 [July 10, 1962], No. 26403/63. Heading G2L. [Also in Division H3] A pumping cartridge for use in a laser comprises a sealed envelope bounded by a radially outer peripheral wall and by a light transmitting radially inner peripheral wall, a charge being placed within the envelope to generate light when ignited. As shown in Fig. 1 the cartridge 1 comprises a shock proof envelope defined by light transmitting external walls 2, 22 and internal wall 222, the latter forming a cylindrical passage into which is fitted a cylindrical laser rod 4. The envelope is surrounded by reflector R and contains charge 6 ignited by means of electrodes 3 which are connected to a source of e.m.f. situated in space 333. The ignitable charge 6 of metallic powder in an oxidizing atmosphere may be in the form of a relatively thick layer attached around the inside surface of wall 2, Fig. 3 (not shown) or as in Fig. 4 (not shown) loosely packed in the envelope. In Fig. 5 (not shown) the external wall 2 is curved along its length in a parabola, and the walls 22 angle out from the ends of the internal wall 222, the focus of the parabola defined by the wall 2 lying at the centre of the laser rod. The envelope may be divided into a number of separate longitudinal compartments by walls extending radially towards the laser rod, which walls may be of thermally insulating or conducting materials or a mixture of the two, Figs. 6-10 (not shown). When the compartments are separated by thermally insulating radial walls each compartment is provided with its own ignition electrodes and two separate charges can be ignited simultaneously, sequentially or individually as desired.
Patent GB-1175337-A (GB)
Title: Improvements in or relating to Umbrellas.
IPC: A45B19/04
Filed: 1968-06-04
Abstract: 1,175,337. Telescopic umbrellas; slide retainers. KORTENBACH & RAUH. 4 June, 1968 [10 June, 1967], No. 26421/68. Heading A4P. In a telescopic pocket or handbag umbrella, the retainer for locking the main slider in its position adjacent to the handle consists of a catch 2b normally projecting through a slot 1a in the stick 1, and a springy member 2 having an achoring portion 2a which is a close fit in the end of the stick or in a bore in the inner end of a handle-securing plug, the anchoring portion 2a which is a close fit in the end of the stick or in a bore in the inner end of a handle-securing plug, the anchoring portion 2a being secured in position by a transverse pin 3. The walls of the handle bushing fitting the end of the stick retain the pin 3 in position, or the pin may project from each side of the stick to engage longitudinal slots in the handle to prevent rotation of the latter. A screw-on handle for a ladies' handbag umbrella is described, the handle-securing plug having an extending threaded bolt, to which a tubular handle with a separate end cap is secured by a wide flanged nut engaging the projecting end of the bolt.
Patent GB-1042136-A (GB)
Title: Liquid pumps
Inventor: BROWN WILLIAM
IPC: F04B23/10
Filed: 1962-07-10
Abstract: 1,042,136. Reciprocating and axial-flow pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. June 20, 1963 [July 10, 1962], No. 26434/62. Headings F1A and F1C. A liquid pump comprises a hollow body, 1, 15, Fig. 1, a relatively fixed part 4 having a truncated conical external periphery within the body, an opposed and relatively eccentric surface 9 on the interior of the body, an annular rotor 5 rotatable about the part 4 and having a complementary conical internal surface, a number of angularly spaced cylinders 6 formed in the rotor and each containing a piston 7 provided with a slipper 8 at its outer end for engaging the opposing surface 9, a circumferentially elongated inlet port 12 and a diametrically opposed circumferentially elongated outlet port 11 in the periphery of the part 4, and drive transmitting means for rotating the rotor 5, the arrangement being such that, in use, the slippers 8 will be maintained in contact with the opposing surface 9, and the forces acting on the pistons 6 will tend to cause the rotor to move axially towards the wider end of the part 4 to maintain a liquid seal therebetween. Liquid entering an annular chamber 16 through a tangential inlet 17 is passed to the inlet port 12 by an impeller 20 to reduce the risk of cavitation in the chamber 16. The impeller and the rotor 5 are driven by a shaft 19, the rim 21 of the impeller having slots located by teeth extending from the rotor 5. In an alternative embodiment, Fig. 3 in which the impeller is omitted, a carbon seal 33 is held against the rotor by the resilient tongues 35 of a washer 34. Further, an annular lip seal 36 and a leakage drain passage 37a are provided. The inlet 28 and outlet 29 are provided in a part 23 and the rotor 30 is driven by a shaft 41.
Patent GB-879827-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: FROHLICH JOSEF
IPC: F16L27/08
Filed: 1960-07-29
Abstract: 879,827. Pipe joints. MANNESMANN A.G. July 29, 1960, No. 26558/60. Class 99(1). Two elbow-like coupling members 1, 2, are supported by ball-bearings 6, 7, on a common rigid shaft 4 and are rotatably connected together at their rims 1b, 2b, which are sealed by packing 13, the members having inner hubs 1c, 2c, which abut and are sealed by packing 14. The bearings 6, 7, are secured in position, and the coupling members held together, by screw-threaded rings 8, 10 and spacers 5. The outer ends of the bores in the hubs 1c, 2c, are closed by caps 3.
Patent GB-437845-A (GB)
Title: Improvements in or relating to tins having plug-in lids
IPC: B65D51/20
Filed: 1934-09-17
Abstract: 437,845. Tins. ROBINSON, F. G., Canister Works, Southcoates Lane, Kingston-upon-Hull. Sept. 17, 1934, No. 26606. [Class 66] The lower portion of the mouth-ring 2 receiving the lever-lid or plug-in lid 3 of a tin is closed by a frangible cardboard or like sealing member 4 which is secured against the under face of an inwardly-directed bead 2<x> by the turning-up of the lower edge 2<y>. To facilitate removal, the sealing member may be weakened adjacent to the bead. The upper surface of the bead serves as an abutment limiting the insertion of the lid. Specifications 120,490, [Class 66], and 385,392 are referred to.
Patent GB-159551-A (GB)
Title: Improvements in and relating to garbage cans
IPC: B65F1/10
Filed: 1919-10-30
Abstract: 159,551. Urbano, F. B. Oct. 30, 1919. Dust-bins.-A conical cover 3 for a garbage receptacle 1, supports a hopper 5 having a lid 16. A pan or valve 7 is hinged at 13 by means of a handle 10, to bars 12 connecting the parts 3, 5. Refuse thrown into the hopper 5 rests on the pan until the latter, after the closing of the lid 16, is turned on its pivot by means of the handle. The pan is normally held to its seat, in order to prevent the escape of odours, by a ring 15 engaging a hook 14.
Patent GB-248701-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C5/10
Filed: 1925-10-26
Abstract: 248,701. Ponsard, R. March 3, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Air tubes and chambers.-A pneumatic tyre comprises a series of separate air chambers C, each fitted with an inflation valve F, and an outer cover A provided with dished partitions B which permit continuity of the air-cushion in case of puncture of any one chamber. The air chambers are assembled through holes E in the rim which are closed by plugs J.
Patent GB-714710-A (GB)
Title: Photographic halftone screens
IPC: G03F5/12
Filed: 1951-11-15
Abstract: 714,710. Photographic half-tone screen. STICHTING INSTITUUT VOOR GRAFISCHE TECHNIEK VAN DE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPEUJK ONDERZOEK. Nov. 15, 1951 [Nov. 15, 1950], No. 26817/51. Class 98(2) A variable density cross line screen has a ruling of lines the opacity of which decreases across each line from a maximum value along one edge of the line to a minimum value along the other edge. the direction in which the opacity decreases within each line being the same for each set of parallel lines of the screen, and the parallel lines being either contiguous to each other or separated from each other by opaque lines. The screen is made photographically, the successive lines being exposed on a sensitive surface by a light spot with constant velocity rectilinear motion of either the sensitive surface or the illuminating and optical system producing the light spot; thus, shown in high magnification, a diaphragm aperture 6, Fig. 2, of triangular shape and relative motion in the direction of the arrow 7 produces, after processing. lines 8 of uniformly decreasing opacity and the final cross line-screen of Fig. 4, while aperture 13, 14, Fig. 3, similarly, produces lines with opaque portion 16 and opacity-decreasing portion 15 and the final cross line screen of Fig. 5. The two sets of lines of Figs. 4 and 5 may result from right-angular cementation of pairs of first-produced line screens or from direct exposure of the two sets on a single sensitive surface.
Patent GB-425878-A (GB)
Title: Improvements in or relating to gas or electric light fittings
IPC: F21V17/12
Filed: 1934-09-18
Abstract: 425,878. Globe galleries. FALK, STADELMANN, & CO., Ltd., and FALK, H., 83, Farringdon Road, London. Sept. 18, 1934, No. 26847. [Class 75 (ii)] In a gas or electric lamp in which the open top of a globe 2 hangs from the edge of a gallery 1, the suspensory part of the gallery is a flanged portion 6, 7 thereof of such form as to underlie the overhanging margin 3 of the opening at the top of the globe while permitting the latter to be introduced into position over the flange by relative tilting movement of the globe and the gallery, and said flanged portion is formed with upwardly directed projections 5 upon the tops of which the margin of the globe rests, being thereby spaced from the flanged portion by an air space 8 permitting ready escape of hot gas or heated air from within the globe past the edge of the gallery. Other forms of flanges may be employed and the projections 5 may be replaced by radial or other ribs.
Patent GB-1462270-A (GB)
Title: Warp knitting machines
IPC: D04B23/08
Filed: 1974-06-18
Abstract: 1462270 Knitting-machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 18 June 1974 [22 June 1973] 26910/74 Heading D1C A warp pile machine including front and rear pile instruments 4, 3 respectively also functioning as knocking over and hold down devices, is provided with weft thread pressers 9. The front instruments 4 are U-shaped to guide the pressers and have a slot through which projection 10 emerges. Pile threads are supplied by guides 12, 13 and a ground yarn by guide 14. Guides 8 lay wefts 17 between the pile instruments. When the needles are projected, pressers 9 are depressed, so that projections 10 hold down the wefts. Front instruments are adjustable to vary the pile height.
Patent GB-1377264-A (GB)
Title: Machines for loading artiles into bags
IPC: B65B25/00
Filed: 1972-06-09
Abstract: 1377264 Apparatus for loading articles into bags EMI ELECTROLA GmbH 9 June 1972 [25 June 1971] 26966/72 Heading B8C A machine for loading articles into bags at a loading station includes means for holding a bag in a substantially horizontal position, means for opening the mouth of the bag, means for partially inserting an article into the opened mouth of the bag and means for rotating the bag to a substantially vertical position with the mouth uppermost so that insertion of the article into the bag is completed by gravity. As shown, a record sleeve held in a horizontal position by suction heads 5, 6, 7 is opened by suction heads 13 carried by a support 11 and a gramophone record 10 is transferred by a suction head 9, on transfer means (not shown) to a position in which it is partially inserted on the sleeve. The head 9 is released and therafter gripped by a suction head 16, also carried by the support 11, and the heads 5, 6, 7 are then released and retracted by an arm 4, and the head 9 moved to pick up another record. The support 11 with the heads 13 and 16 are then rotated anticlockwise to a vertical position by a device 15, the record is released by the head 16 and drops into the sleeve 8, heads 13 are retracted and released and the sleeve falls into a box 19 on an inclined conveyer 18. The box 19 is retained by discs 22, 23 having oppositely located cutaway segments, which when the box is full, are rotated by a device so to allow the box to slide down the conveyer and an empty box to take its place. The head 9 may be arranged to pick up records from an edgetrimming station of a record press.
Patent GB-1180965-A (GB)
Title: An Improved Coping for External Walls.
Inventor: REVELL PETER
IPC: E04D3/40
Filed: 1967-06-12
Abstract: 1,180,965. Copings. P.J.P. TRADING Ltd. 12 June, 1967, No. 26994/67. Heading E1B. A capping for copings 5 comprises a resilient P.V.C. or aluminium trough like member 1 having flanges. 3 with inturned ends 4 which spring over and interlock with the downturned ends 8 of rigid metal brackets 7 secured to the coping by screws 10. Butt joints between adjacent trough like sections are sealed by a butyl mastic sealer applied to a flashing beneath the joint.
Patent GB-1533678-A (GB)
Title: Fsk transmitter having frequency band-limitation
IPC: H04L27/12
Filed: 1976-06-29
Abstract: 1533678 Data transmission: FSK modulators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1976 [2 July 1975] 27027/76 Heading H4P An f.s.k. transmitter having a limited frequency spread has a square wave data signal controlled first device I generating symmetrical trapezoidal pulses, of frequency equal to the square wave signal, feeding (a) a second device 2 generating a D.C. voltage showing a positive pulsatory variation at each edge of the trapezoidal signal and (b) the frequency control input of an oscillator modulator 3 formed by a substantially instantaneously linearly controllable gyrator generating a f.s.k. output signal which is applied to a first input of an amplitude modulator 5, the second input of which receives the output from the device 2. The modulator 5 providing an output from which a band limited f.s.k. signal is derived for application to a carrier modulator 8.
Patent GB-1438641-A (GB)
Title: Arcuate tunnell lining segments
IPC: E21D11/04
Filed: 1972-06-09
Abstract: 1438641 Tunnels &c CHARCON TUNNELS Ltd 11 June 1973 [9 June 1972] 27120/ 72 Heading E1F An arcuate tunnel lining segment comprises a plurality of blocks 11 secured together, one face 12 of each block being convex and the opposite face 13 being concave, the concave face being of greater diameter than the convex face. The faces 12 and 13 preferably abut over a central portion equal to half the block thickness. The blocks which are preferably of concrete are secured together by an epoxy resin adhesive, and have two circumferentially extending bores 14 to receive tie members (not shown) for securing adjacent segments. A lining ring constructed of the segments is completed with a key segment (25), Fig. 3 (not shown), of U-shaped crosssection and having the required concave and convex abutting surfaces (29, 30). The abutting surfaces may be such as to extend in a helical manner about the tunnel lining axis.
Patent GB-1277720-A (GB)
Title: Two cavity laser
IPC: H01S3/082
Filed: 1971-04-19
Abstract: 1277720 Lasers UNION CARBIDE CORP 19 April 1971 [27 April 1970] 27137/71 Heading H1C A laser particularly suitable for holography comprises a single active medium with two resonators which produce two output beams of the same frequency but of different mode. For holography one of the beams is a single mode or TEM 00  transverse mode and forms the reference beam, while the second beam is a multimode beam of 10-20 times the energy and forms the object beam. In Fig. 2, a ruby laser 24 and an active or passive Q switch are disposed in a first resonator comprising mirrors 25 and 26, and in a second resonator comprising mirrors 25, 27 and 29. Mirror 27 is apertured so that the output from mirror 26 is a single mode while the output from mirror 29 is multimode. In Fig. 3 a beamsplitter 35 is used, the straight-through resonator now giving the multimode output while the single mode emerges from mirror 34. In Fig. 4, only three reflectors are used, the multimode output being shown at 47 and the single mode at 48. In all the embodiments further combining mirrors would be used for holography in known manner, Fig. 1 (not shown). Additional laser amplifiers may be used.
Patent GB-385681-A (GB)
Title: Cowlings for air-cooled internal-combustion engines
IPC: F01P7/02
Filed: 1931-09-30
Abstract: 385,681. Cooling cylinders. ARMSTRONG SIDDELEY MOTORS, Ltd. and GREEN, F. M., Armstrong Siddeley Works, Park Side, Coventry. Sept. 30, 1931, No. 27209. [Class 7 (ii).] In an air-cooled engine, cowling for diverting the cooling current is formed of two plates for each cylinder, the one 5 surrounding the exhaust valve being larger than the other 4 surrounding the inlet valve. For a star engine with two banks of cylinders 15, 17, Fig. 4, only the rear bank has cowling as above described, the plate 4 adjacent each inlet valve carrying a plate 16 for the exhaust valve in a cylinder of the front bank. The plates are turned in at the bottom as at 9 and also carry spacers 8 to hold the plates away from the cooling ribs; the turned-in parts and the spacers take over wires which grip the cylinder. In one form the ends of the wires are joined by a link and an adjusting screw 12 ; in another arrangement the wires at one end hook over projections 13 and are connected together by a spring 14.
Patent GB-252613-A (GB)
Title: Improvements in or relating to machines for treating grain, pulse, seeds or the like
IPC: B02B7/02
Filed: 1925-10-29
Abstract: 252,613. Pollak, J. E., (Kaspar Getreides chalmaschine Ges.). Oct. 29, 1925. Hulling, husking, and decorticating; scouring and polishing.-A machine for husking, pulsing, podding, polishing, brushing, or similarly treating grain comprises a number of independent treating chambers, which may be arranged in pairs, and charging devices arranged so that two or more chambers may be simultaneously charged, or the chambers may be charged successively. The charging devices are arranged so that the flow of material may be varied and are controlled, together with the discharge openings, from a common control. In the form shown in Figs. 3 and 4, the chambers 1 - - 4 are arranged in pairs and are fed from charging devices 5, 6 controlled by valves 5', 6<1>. Between the pairs of chambers are valves 10, 11 which, together with the valves 5', 6<1> and the discharge openings 13, are operated from a cam shaft 20 driven from the shaft 19 on which the beaters 12 of the treating chambers are mounted. Air is admitted to the chambers through holes 9 in the sides. Fig. 5 shows a slide valve replacing the flap valves 10, 11 and comprises a shoot 42 fitted with apertures 46 controlled by slides 43 operated by rocking levers to which they are adjustably connected to vary the valve openings. In this case air is admitted to the chambers through holes 53. In another form a common screw conveyor supplies the charging device, the valves for which are successively operated to charge the chambers. The timing-devices are similar to those described in Specification 153,253.
Patent GB-422431-A (GB)
Title: Improvements in or relating to smokers' ashtrays
IPC: A24F19/00
Filed: 1933-10-04
Abstract: 422,431. Smokers' ash-trays. JOSEPH, F. A., Michen Hall, Shackleford, near Godalming, Surrey. Oct. 4, 1933, No. 27350. [Class 130] A smoker's ash-tray is formed by a dish 4, Fig. 2, and a fluted member 7, the combination having an opening 2 for ash and grooves 8 to extinguish burning cigarettes. Grooves 10 on the member 7 form cigar or cigarette rests. To facilitate cleaning of the grooves, part of the wall between adjacent grooves is removed or discontinued; alternatively, each groove may receive two cigarettes and a plane with pairs of holes may be located over each groove to position the cigarette ends. In the construction shown in Fig. 8, the open sides of the grooves 8 are closed by a plate 17 to which the member 7 which carries the ash-tray 2 is clamped by thumb nuts 18. In the modification shown in Fig. 10, the edge of the dish 4 is bevelled to facilitate the entry of the member 7, and is cut away at 21 to receive the grooves 10 ; the member 7 has a flange 22 overhanging the dish 4 and cut is away at 24 to reduce the length of the grooves 10.