baber/WOPTO huggingface dataset:
Patent GB-718526-A (GB)
Title: Methanol modified urea-formaldehyde resins
Inventor: TURNER JOHN HARRY WALLICE
IPC: C08G12/42
Filed: 1951-11-26
Abstract: A substantially dehydrated urea-formaldehyde condensate is heated preferably under reflux with methanol in the presence of sufficient acid with a dissociation constant greater than 1 x 10-2 to prevent gelation of the solution.  The solutions produced are stable but cure to hard films on air drying or stoving to evaporate the solvent. They may be used for films, lacquers or enamels.  Acids mentioned are hydrochloric, phosphoric, sulphuric, aryl sulphonic and oxalic. Acids such as nitric acid which are strong oxidizing agents are not suitable. Methanol containing a little water may be employed. Solutions containing at least 60 per cent. non-volatile matter may be produced and are, in fact, less liable to form precipitates on standing.  Some ethanol may be mixed with the methanol of the process, and other alcoholic solvents or alcohol-soluble resins may be mixed with the solutions.  On evaporation of the methanol, the acid acts as a curing catalysts.  In example (1) a condensate was formed by refluxing 1 mol of urea with 2 of formalin.  It was dehydrated by spray drying dispersed in methanol and mixed with a solution of concentrated hydrochloric acid in methylated spirit. The mixture was refluxed until the viscosity after an initial fall rose to a maximum.  The solution air-dried to a hard film. Example (2) is similar comparing a number of different acids, concentrations of reagents, and reaction conditions.  Example (3) illustrates the addition of a cardanol-cresolformaldehyde resol to a solution according to the invention.  In Example (4) a phenolformaldehyde resin etherified with epichlorhydrin was added to a solution according to the invention; and in Example (5) a butyl phenol resol.
Patent GB-880069-A (GB)
Title: Improvements in or relating to turbine or like blades and rotors incorporating such blades
Inventor: STEWART ALEXANDER
IPC: F01D5/18
Filed: 1958-08-28
Abstract: 880,069. Turbine and compressor blades. ROLLS-ROYCE Ltd. May 27, 1959 [Aug. 28, 1958], No. 27729/58. Class 110 (3). A turbine or compressor blade is formed with internal fluid-flow passages to carry cooling or heating fluid and there is at least one passage having two passes extending lengthwise through the blade and into the root, one pass leading from an inlet in a surface of the root other than a circumferentially facing surface and the second pass leading to an outlet in a circumferentially-facing surface of the root, the passes being joined in series from the inlet to the outlet, there being provided also at least one single pass passage leading from an inlet in a circumferentially-facing surface of the root to an outlet in the blade tip. In the bladed turbine rotor shown, the blade comprises an aerofoil portion 13, a root and a tip shroud 14, the root itself comprising an attachment portion 15, a platform 16 and a circumferentiallynarrow stem portion 17 therebetween. The blade is mounted by entering its attachment portion 15 in a correspondingly-shaped recess formed in the rim 11 of the rotor disc 10, a shallow recess 20 in the rotor disc co-operating with a recess 21 at the bottom of the attachment portion 15 to form a chamber to which fluid such as high-pressure air is supplied from space 18 through bores 19. Three bores 22, 23, 24 communicate with the chamber 20, 21 and extend through the attachment portion 15 and stem 17. The bore 22 leads to a pair of two-pass passages formed side-by-side in the blade, each passage comprising a pass 25 through which fluid flows radially-outwardly and a pass 26 through which fluid flows radiallyinwardly. The passes 25, 26 of each passage are connected by a transfer passage 27 formed in the tip shroud 14 and closed by a plate 28 welded to the tip shroud. The passes 26 communicate with a fluid outlet orifice 30 formed in one of the circumferentially-facing surfaces of the stem 17. Two single-pass passages 33 disposed side-by-side also extend through the blade from an inlet orifice 34 in the other circumferentially-facing surface of the blade stem 17 to outlets in the tip shroud. The bores 23, 24 communicate with further single-pass passages 31, 32 respectively extending through the leading and trailing edge portions of the blade, the passages having outlets through the tip shroud 14. The spaces between adjacent blade stems 17 are closed at their ends by sealing plates 36 whereby fluid discharging through an outlet 30 in one blade after flowing through the passages 25, 26 then enters the inlet 34 of the adjacent blade to flow through the passages 33.
Patent GB-831582-A (GB)
Title: Seat structures for mounting on the roofs of motor cars and the like
IPC: B60N2/30
Filed: 1957-09-03
Abstract: 831,582. Seats for vehicles. BALFOUR, L. M. J. Aug. 29, 1958 [Sept. 3, 1957], No. 27784/57. Addition to 743,570. Class 103(2) [Also in Group XIV] In an improvement in or modification of the seat arrangement of the parent Specification the frame 10 carries four seats 12 at least one of which has pins on back support 46 and cross member 50 which engage holes 45 in main frame members 13, 14. Arm rests 42 have pins 43 fitting into holes in the members 13, 14 the pins of the outermost arms being threaded and secured by wing nuts 44. A seat web 52 of flexible fabric is attached to members 48, 50 and the cross bars 48, 49 of the back support 46 are pivotally connected to the uprights to render the back support collapsible. In a modification the arm rests are omitted and rotation of members 13, 14 is prevented by providing rear frame member 14A, Fig. 4, with holes 54 which are entered by clamping screw 21. In a further modification, Fig. 5, a collar 55 secured to member 14 has an extension piece 56 engaging end frame member 19.
Patent GB-288496-A (GB)
Title: An improved method of and apparatus for identifying crystals
IPC: G01N33/38
Filed: 1927-10-19
Abstract: 288,496. Read, F. F. Oct. 19, 1927. Examining gems.-For the purpose of examining gems and crystals, more particularly diamonds, the gem 18 is mounted in a holder capable of universal movement and a narrow beam of light 14 from an arc lamp 11 is projected on to it through a hole 15 in a screen 16. The beam of light is reflected and refracted from the various facets of the gem, and the reflected and refracted rays 19, 22 are received on screens 16, 21 placed at definite distances from the gem. The positions of such rays may be marked on the screens, as in Fig. 2, and thus constitute identification charts.
Patent GB-1121178-A (GB)
Title: Articulated chain means for supporting flexible conductors
IPC: B66C13/12
Filed: 1966-06-21
Abstract: 1,121,178. Chains. KABELSCHLEPP G.m.b.H. 21 June, 1966 [23 June, 1965], No. 27788/66. Heading F2Q. [Also in Division B8] One or more flexible conduits 14 conveying electric power, gases, or liquids between a fixed part and a moving part of a machine tool are supported, shielded, and prevented from bending to less than a predetermined radius, by a substantially tubular chain (11) comprising links (12) (Fig. 2, not shown) pivoted together by bolts 37 having lock-nuts 38. Alternate links comprise parallel side-plates 25, 26 secured together by a transverse web (50), (Fig. 4, not shown) which has studs (51) and lugs (57, 58) engaging holes in the side plates, and holes (72-74), centred in the plane containing the end pivots of the link, through which the conduit(s) 14 extend. The remaining links have reinforcing plates 65 extending between their end pivots 24 contiguous with side plates 20, 21. The chain may flex between a linear form, in which edges 29, 31 of adjacent links abut one another, and a curve of predetermined radius in which edges 30, 32 of adjacent links abut one another. Portions of the inner and outer faces of the chain are closed by flexible shields 75, e.g. of mild steel sheet, slidable between the transverse edges (59, 60) of the webs (50) and rollers 80 retained between the side plates 25, 26 by folded edges 35, 36 thereof, one end of each shield being bent round a roller 80 as at 84. The webs (50) may be provided at spacings other than every other link.
Patent GB-401861-A (GB)
Title: Improvements in or relating to draining baskets for sinks
IPC: A47J47/20
Filed: 1932-10-06
Abstract: 401,861. Strainers. BURTON, F. J., Xela, Station Road West, Oxted, Surrey. Oct. 6, 1932, No. 27838. [Class 46.] Draining - baskets for sinks are provided with feet or short legs secured by screw or other pins and made of non-metallic material such as rubber, ebonite, or wood. Screw pins 4 may pass through holes in the basket 1 and enter threaded or plain bores in the legs or feet 3. The lower ends of the legs may be recessed to receive nuts screwing on to the screw pins. The upper ends may be concave to fit against depressed parts 2 of the basket. Flexible washers 5 may be used. Plain or ragged pins may be employed, and the legs may fit into sockets on the basket. The pins may be fixed on the basket during manufacture. The legs or feet may be made of more than one material, and wooden legs may have rubber tips.
Patent GB-304364-A (GB)
Title: Improvements in or relating to buildings or garages for stowing motor cars and othervehicles
IPC: E04H6/08
Filed: 1927-10-20
Abstract: 304,364. Johnston, N. F. Oct. 20, 1927. Garages.-A garage is divided into two rows of multi-storey rectangular stalls erected on each side of a central corridor along which moves a traversing hoist fitted with a rotary turntable. The building is formed of uprights A connected by beams B and covered by wall sheets G. The floors F are supported by bars C, D, E, the inner parts of the floors projecting beyond the corridor uprights and being supported by brackets H. The traversing carriage 5 runs on sunken rails in the corridor 3 and is provided with inclined runways 7, and carries a hoist framework 6. The hoist platform 8 is provided with a turntable 9 so that the cars which enter the platform 8 from the corridor can be turned at right-angles in order that they may be run off into any compartment with which the platform is caused to align. In its lowest position, the hoist platform rests on the ground.
Patent GB-1110584-A (GB)
Title: Improvements in electric motor control circuits
IPC: H02P25/14
Filed: 1965-07-01
Abstract: 1,110,584. Control of A.C. motors. W. J. BROWN. 1 July, 1965 [3 July, 1964], No. 27850/65. Heading H2J. [Also in Division G3] A.C. supply to a series motor 8, 9 is regulated by a device 1 controlled, via 18, by the difference in amplitude and phase sense between point 10 and the slider 12 of potentiometer 11. Connected as shown, the system maintains a constant ratio between armature and field voltages; variations (Figs. 2-5, not shown), maintain constant ratio of armature voltage to field current, or motor voltage to motor current. In all cases the object is to keep speed constant with varying load. The regulator 1 comprises a TRIAC (Fig. 6, not shown), which passes current in either direction according to the polarity of triggering current, or two thyristors back-to-back (Fig. 8, not shown), or one thyristor across a diode bridge in series with the motor. Control is by varying the firing angle, the triggering pulses being produced by a pair of oppositely poled saturable transformers in device 18, having primary windings connected to the points 10, 12.
Patent GB-297843-A (GB)
Title: Device for bed-warming by means of introducing hot air
IPC: A61F7/00
Filed: 1928-09-28
Abstract: 297,843. Horlacher, A. von. Sept. 29, 1927, [Convention date]. Bed-warmers and airers.-A device for warming beds by means of hot air comprises a tube 1 connected to a hot-air supply, terminating in a nozzle 2 having a semi-circular opening 9. The bed clothes are held away from the nozzle by plates 3, 4, which may be perforated, and which may be supported by struts 7. A handle 5 is provided.
Patent GB-1300887-A (GB)
Title: Sewage sludge and municipal refuse liquid phase coking process
IPC: C02F11/18
Filed: 1971-06-15
Abstract: 1300887 Materials for coking TEXACO DEVELOPMENT CORP 15 June 1971 [15 June 1970] 27861/71 Heading C5F [Also in Division C1] A process for treating sewage and municipal refuse comprises forming a sewage sludge, forming a slurry of municipal refuse with water derived from a subsequent coking step, separating heavy materials from the slurry with the aid of a gas which causes flotation of organic particulates, mixing the slurry with the sewage sludge, and coking the mixture under a pressure sufficient to prevent the vaporization of water, to form gas, grease, water of reduced BOD and coke. In one embodiment sewage which has been screened and comminuted is passed through a primary settler to form a primary sludge, an activated sludge chamber and a secondary settler to form a secondary sludge, part of which is mixed with the primary sludge and part returned to the activated sludge chamber. Municipal refuse which has been shredded, slurried with water is passed to a settler where with the aid of carbon dioxide or air, glass and metal are separated. The refuse slurry is then mixed with the sludge mixture and the resultant mixture is heated (e.g. 400-750F.) under pressure (e.g. 250-2400 p.s.i.g.) in a tubular reactor. The heated mixture is passed to a chamber where gas and grease are separated from the water and coke which are subsequently separated e.g. in a filter or cyclone. Part of the water is used in forming the refuse slurry and part mixed with the effluent entering the activated sludge chamber.
Patent GB-1389197-A (GB)
Title: Film folding machine
IPC: B65H45/101
Filed: 1971-06-15
Abstract: 1389197 Packaging; folding sheet material FITZWILTON Ltd 15 Sept 1972 [15 June 1971] 27939/71 Headings B8C and B8R Apparatus for folding lengths of plastics film concertina-fashion to form a pack comprises a main frame 6 reciprocably-mounted by rollers 11 on a support frame 15, a feed frame 5 mounting pairs of feed rollers 1 and 2 and a movable knife 3 for cutting a length of film from a supply, two opposed, sequentially-operable sets of jets 12 on the main frame for delivering air blasts 29 and 30 alternately to opposite sides of the film to initiate the formation of oppositelydirected folds in the film, and two opposed arrays of fingers 9 pivoted on the main frame and operable so that the folds initiated in the film by each of the sets of jets are completed by that respective array of fingers on the opposite side of the film. The main frame is reciprocated by linkage 13 to bring each set of jets, when operable, adjacent the film to increase their effectiveness. The end portions of the fingers are cranked so that they extend vertically when each array is returned to their inoperative position after being pivoted downwardly to complete the respective film fold. Horizontal doors 18 support the film as it is folded, said doors being opened to discharge the formed pack on to a conveyor 17 for conveyance to an air table 16. A pair of pivoted retaining fingers 8 are provided to hold back the next length of film until the folding operations on the preceding length are completed. The film may be in the form of a sheet film or a slit or unslit tube.
Patent GB-355975-A (GB)
Title: Improvements relating to compressed-gas blow-out electric switches
IPC: H01H33/12
Filed: 1930-09-18
Abstract: 355,975. Switchgear structures. RUPPEL, S., 8, Palmengartenstrasse, Frankfort-on-Main, Germany. Sept. 18, 1930, No. 27974. Convention date, Sept. 26, 1929. [Class 38 (v).] Pneumatic blow-outs; locking and unlocking.-The insulating casing of a switch having a compressed - gas blow-out is arranged so as to be rotatable about its axis and to carry the blades of an isolating switch (or switches) whereby the latter can be operated on or off, and, in the latter position, the blades can be earthed. The stationary earthed member 9 carries rotatable insulator 6, 13 carrying, respectively, contacts 5, 16 and isolating blades 4, 15, the latter engaging their respective fixed contacts 21, 24 which are mounted on pillars 20, 23 on the gas container 19. The pillars 6 carry also the fixed contacts of the main switches and a valve 18 admits gas to the central member 9 and passage 27 whereby the outer poles are supplied. Links 11, 26 are connected to levers 28 whereby all the blades 4, 15 with the contacts 5, 16 may be operated simultaneously from a shaft 29. Operation of the latter moves the parts from the full-line position shown in Fig. 2 to the dotted position so that the three poles are short-circuited and earthed at a contact 30, Each movable contact 1 is formed with a hexagonal or other surface, the faces of which are engaged by contact fingers 35 which lead current from the lower blades 15 to the contact 1 and also prevent rotation of the blades 15, and consequently also of the blades 4, to the isolating position when the contact 1 is in the " on " position. In the " off " position, the fingers 35 slide on the cylindrical surface of contact 1 and the latter cannot then be moved to the " on " position until the isolating blades are closed. Alternatively, a pin on the contact 1 may co-operate with a suitably shaped slot to give the same action. With an isolating blade on each side of the main switch, as shown, the main switch may be arranged to be operable when the isolating switches are open, the latter being, however, locked against closure until the main switch is again in the " off " position. The Specification also refers to an enclosing structure the front of which is interlocked with the earthing switch mechanism. The Specification as open to inspection under Sect. 91 (3) (a) describes also a construction (Fig. 3, Cancelled) in which an auxiliary switch is shunted across the main switch for assuming part of the load, interlocks preventing opening of the auxiliary switch unless the main switch in closed. This matter does not appear in the Specification as accepted.
Patent GB-1191634-A (GB)
Title: Injection Needle and Container
IPC: B65D85/24
Filed: 1966-06-22
Abstract: 1,191,634. Hypodermic needle assembly and packaging therefor. PIERREL S.p.A. 13 June, 1967 '[22 June, 1966], No. 27994[67. Heading A5R.  A unit package comprises a hypodermic needle assembly which is intended for use with a tubular vial syringe and which consists of a double-pointed-ended needle and a needle support secured thereto, a detachable cap which encloses that end' of the needle adapted for fitting to the syringe and a detachable cover which encloses the other end of the needle, the cover being removably held in place 'by contact with the needle support and the .cap being removably held in ,place by contact with the cover. As illustrated in Figure 1, a hypodermic needle assembly 10 consists of a doublepointed-ended needle 1 secured "by means of a metal sleeve 4 to a support 5 which is made of plastics material and which consists of a core 6 and a body 7 provided wisth a stop collar 8 and' preferably also with diametrically-opposed 'pins 9 which form part of a bayonet joint the other part of which is formed by appropriate slots provided on a syringe; alternatively, the needle assembly and! syringe may be coupled by means comprising screw threads. A cover 11, which encloses that end 2 of the needle intended to pierce the tissues of a patient, is provided with a seat 12 for receiving the mouth 13 of a cap 14 which encloses that end 3 of the needle intended' to pierce the stopper of a vial. The cover and cap 'preferably are secured together by readily separable spot welds 20 and preferably are made of a material, for example polyethylene, which is permeable to sterilising gases but impermeable to microorganisms.
Patent GB-1014537-A (GB)
Title: Improvements relating to hose couplings
IPC: F16L35/00
Filed: 1963-07-15
Abstract: 1,014,537. Pipe couplings. HOOVER Ltd. July 15, 1963, No. 28008/63. Heading F2G. A hose coupling for connecting the end of a hose to a companion part, comprises a tubular nipple fitting into the end of the hose, a split inner plastics sleeve having a helical groove and formed in two or more part-circular sections hinged together by a thin web joining adjacent sections and surrounding the end of the hose, an outer sleeve constituted by or connected to the companion member and shaped to be slid axially over the inner sleeve to compress it against the hose, and means for preventing the outer sleeve from sliding axially off the inner sleeve. In one embodiment a hose 4 receives a nipple 3 and is surrounded at one end by a split sleeve 7, having diametrically opposite the slit, a hinge constituted by a flexible strip integral with the sections either side of the strip. The sleeve carries two or more bosses 10 on its extremity and is received within an elbow 1, apertures 12 in the elbow 1 serving to co-operate with the bosses 10 to lock the sleeve in position. Tapering grooves 11 in the elbow 1 locate and guide the bosses 10. The inner surface of the sleeve 7 is corrugated to fit a corrugated tube and may have very small webs transverse to the corrugations to further grip the hose. In a second embodiment the hose 4 receives an insert 3 and is surrounded by a hinged split sleeve 23 containing a circumferential groove 24 in its outer surface. The companion member is in the form of a metal sleeve 17 one end of which 18 is flanged. The flange co-operates with a gasket 20 to connect a flanged wand 14 to the hose 4. Depressions 22 in the form of cantilevered tongues spring into the groove 24 to lock the metal sleeve 17 to the inner sleeve 23. A protective handle 15 is shown covering the joint and may be riveted to the wand or may be rotatably mounted on the wand. The outer and inner sleeves 17 and 23 of Fig. 3 may be replaced by the inner sleeve 7 of Fig. 1 and the handle 15 may be provided with the grooves 11 and apertures 12 of Fig. 1.
Patent GB-669475-A (GB)
Title: Travelling wave amplifier discharge device
IPC: H01J23/30
Filed: 1947-10-22
Abstract: 669,475. Travelling-wave tubes. WESTERN ELECTRIC CO., Inc. Oct. 22, 1947 [Oct. 22, 1946], No. 28261/47. Addition to 669,474. Drawings to Specification. Class 39 (i). In the travelling-wave amplifier of the parent Specification the insulating-rods which support and space the helix from the tube wall, are given an electrically-resistive coating of colloidal graphite to provide attenuation of the high-frequency travelling-wave and so to prevent self-oscillation. The coating also serves to prevent the accumulation of static charges on the rods and envelope wall. The coating is preferably of non-uniform thickness, being thicker at the centre and tapering off at the ends. In manufacture the colloidal graphite is dissolved in alcohol and applied by spraying with nitrogen. A number of successive coats may be applied. The turns at either end of the helix are of varying pitch so as to provide an impedance match between the helix and strips serving as input and output coupling devices, as described in the parent Specification. The envelope is of glass or quartz. The device is otherwise similar to that shown in Fig. 2 of the parent Specification. Specifications 652,155 and 669,473 are referred to.
Patent GB-354595-A (GB)
Title: Improvements in dress or like shirts
IPC: A41B1/02
Filed: 1930-09-23
Abstract: 354,595. Shirts. NEELY & WILKINSON, Ltd., NEELY, R., Aberfoyle Factory, Strand Road, Londonderry, and WILKINSON, M. S., 43, Virginia Street, Glasgow. Sept. 23, 1930, No. 28360. [Class 141.] In a dress or like shirt of the kind which fastens down the front and in which the lower part of the.dress front 2 is not attached to the body 1 of the shirt, the body part, which extends behind the unattached portion of the front, is provided with adjustable fastening means, such as a button 4 and two buttonholes 5, 5a.