baber/WOPTO huggingface dataset:
Patent GB-1458198-A (GB)
Title: Micoporous filters
IPC: B01D46/54
Filed: 1973-12-04
Abstract: 1458198 Porous polyvinyl chloride filters AMERACE CORP 4 Dec 1973 [13 Dec 1972] 56138/73 Heading C3C [Also in Division B1] A filter comprises a microporous member, e.g. a flat sheet, having a tensile strength greater than 250 lb./sq. in. at an elongation of less than 30% and having at least a pair of opposed surfaces and consisting of a matrix of polyvinyl chloride resin having particles of silica filler dispersed throughout said matrix and a network of pores formed therein, the pores being formed within the matrix, between the particles of silica and the matrix, and between neighbouring particles of the silica, the silica being present in an amount by weight of from 50% to 67%, the size distribution of the pores varying non- uniformly across each of the surfaces and across the thickness between the opposed surfaces through the range of from 0À01 microns to 100 microns, the pores having a mean pore diameter of 0À1 microns, the microporous member being pervious to the flow of a fluid stream therethrough from one of the surfaces to the other of the surfaces and being impervious to particles suspended within the fluid stream, the rate of flow of the fluid stream through the microporous member ranging from 0À4 gallons/min./ sq. ft. to 9 gallons/min./sq. ft. when measured under a pressure gradient of 10 psig through a microporous member having a thickness of 0À02 inches, the size of the particles being smaller than the upper limit defining the range of pore size distribution. The filters are made by forming a mixture of a polyvinyl chloride resinous binder and silica filler, the filler being present in an amount by weight ranging from 1 part per part of binder to 2 parts per part of binder, a solvent for solvating the binder, the solvent being present in an amount by weight from 1À5 parts per part of binder to 3 parts per part of binder, and a non-solvent, the non-solvent being present in an amount by weight ranging from 0À9 to 1À3 times the amount of the solvent, the solvent comprising from 29% to 35% of the total composition by weight, extruding or moulding the mixture and passing it through an extraction medium to replace the solvent in the mixture with the extraction medium, and removing the extraction medium to form the filter. In the examples mixtures of polyvinylchloride hydrated silica, cyclohexanone, water and optionally the ground porous material made from the above composition were formed into sheets which were then extracted with water and dried to form porous sheets which were used as filters (see Division B1).
Patent GB-1359027-A (GB)
Title: Apparatus for guiding sheet metal
IPC: B21C47/34
Filed: 1971-12-03
Abstract: 1359027 Grinding sheet or strip metal BRITISH IRON & STEEL RESEARCH ASSOCIATION 30 Nov 1972 [3 Dec 1971] 56287/71 Heading B3W Magnetizable metal sheet or strip 2 being fed in a predetermined direction P is guided laterally by a first series of rollers 18, the longitudinal axes of which are inclined to the normal to the direction P so that sheet contacting the rollers is given a lateral component of movement in a first sense, and one or more linear linear induction motor primary members 24 disposed relative to the rollers so that when the primary member(s) is/are energized, a lateral force in the first sense is applied to the sheet and the sheet is attracted to contact the rollers. A fixed guide may be arranged at one opposite edge of the sheet but preferably a second series of rollers 20 with linear induction motor primary members 24 are arranged below the sheet to operate in the opposite sense to the first sense. The angle of the roller axes to the normal direction P is less than 3 degrees. A sensor 30 actuates the primary members when the sheet deviates from its predetermined path. The primary members 24 may be energized with their windings reversed to supplement the guiding action of rollers 18 and primary members 20 and vice versa. The supplementary primary members are energized with less power than, or slightly after, the main primary members. In an alternative embodiment, Figs. 3 and 4 (not shown), the first and second series of rollers and their associated primary members are mounted in respective frames (54) (56) urged apart by springs (58). Whichever series of primary members is energized the frame (54) will move towards the frame (56). A stop 60 limits upward movement of the frame (54). A pair of rolls (62) located at the front and the rear of the frames space the frames by a distance which takes into account the thickness of the sheet being fed. Each series of rollers has a load cell which indicates which series is in contact with the sheet. In a further embodiment, Figs. 5-7 (not shown), both series of rollers &c. are on the same side of the sheet with a roller of one series arranged end to end across the sheet with a roller of the other series, the planes tangent to the respective series of rollers being inclined to one another so that energizing one series of primary members and rollers lifts the sheet from the other. The sheet guide may be mounted on a carriage (10), Fig. 1 (not shown), biased by a spring (12) to take up slack while a new coil is welded to the end of the sheet being processed. Alternatively the guide may be mounted on a separate carriage.
Patent GB-1494080-A (GB)
Title: Wheels for machinery for rowcrop working
IPC: B60B23/12
Filed: 1974-11-21
Abstract: 1494080 Vehicle wheels FA STANDEN & SONS (ENGS) Ltd 21 Nov 1974 [5 Dec 1973] 56463/73 Heading B7C An adjustable track, single or twin rim wheel, for agricultural machinery, comprises a wheel body portion or disc 3 detachably mounted on a hub 1, and a wheel rim 4 or rim pair (4, 4a, Fig. 10, not shown) releasably secured to the disc by means of bolts 10 passing through slot means, in each of a number, e.g. six, of lugs provided on one of the rim or rim pair and disc and through selected ones of uniformly spaced bolt holes 9 in each of a number of complementary lugs 8 (or 8a) provided on the other of the rim or rim pair and disc. The arrangement is such that axial movement of the rim or rim pair relative to the disc, by a distance corresponding to the pitch of the bolt holes, can take place when the bolts are loosened, and without all the bolts being removed. As illustrated the slot means in each lug 6 comprises two slots 7 each of a length corresponding to that spanned by two bolt holes 9. The rim can be adjusted relative to the disc between the positions illustrated in Figs. 4 and 5, and further adjustment of the track can be achieved by reversing the disc on the hub so that the lugs are on the axially inner side of the disc (Figs. 7-9, not shown).
Patent GB-1386086-A (GB)
Title: Article handling device
IPC: B66C1/42
Filed: 1971-12-07
Abstract: 1386086 Article handling devices BRITISH STEEL CORP 5 Dec 1972 [7 Dec 1971] 56783/71 Heading B8H An article handling device comprises a pair of dog arms 1, 2 pivotally interconnected by a pivot pin 3 and also pivotally connected by means of arms 9, 10 to a beam 13 to which lifting tackle (not shown) is attached, a tumbler hook 17 depending from a bracket 12 on the beam 13, said hook in the position shown engaging with a pin 18 on an upstanding bracket 16 to lock the arms 1, 2 in the open position shown, such that on lowering of the beam 13 and bracket 12 towards the bracket 16 the hook 17 is flipped from under the pin 18 so that on upward movement of the beam 13 the arms 1, 2 are free to move inwardly to engage an article 19. When the article is subsequently deposited in its new position the beam 13 is again lowered relative to the bracket 16 causing the lower cam surface (22) of the hook 17 to move along the upper part of the pin 18, Fig. 6 (not shown), and then settle about the pin, the device then being again in the condition shown in Fig. 1, in which the arms 1, 2 are in their open condition. The movement of the members 12, 13 is only in a plane containing the axis of the pivot pin 3.
Patent GB-1389842-A (GB)
Title: Casks or containers
IPC: B67D1/04
Filed: 1971-12-08
Abstract: 1389842 Casks GRUNDY (TEDDINGTON) Ltd 7 Dec 1972 [8 Dec 1971] 57056/71 Heading B8D A cask 10 for containing a liquid dispensed under pressure has an extractor tube 13 extending from the inlet/outlet and terminating short of the cask bottom and carrying at its lower end a deflector having an annular part  to deflect liquids forced down the tube 13 during washing over the outer surface of the tube 13. The deflector comprises a hollow boss or tube 14 engaging the end of the tube 13 and a deflector skirt 15 secured to the boss or tube 14 by webs 16. The skirt edge 15a bears on or is close to the bottom wall of the cask and is gapped or  scalloped.
Patent GB-1444437-A (GB)
Title: Device for protecting welders respiratory organs against fumes
IPC: A61F9/06
Filed: 1973-12-11
Abstract: 1444437 Welders' shields INST ELEKTROSVARKI IM E O PATONA AKAD NAUK UKRAINSKOI SSR 11 Dec 1973 57332/73 Headings A5A A5R and A5T A shield 1 for welders &c, includes a light filter window 2 and a perforated tube 3 secured to the outside of the shield below the window, the tube having a connector for connection to a supply of compressed air. The tube is closed at one end, and supplied at the other end, through the hose 4, with compressed air which escapes through perforations 5 at an angle of 0‹-60‹ with the plane of the window, so as to deflect fumes away from the operator. The device may be made of aluminium, light alloy, or plastics. It may be hand-held, or worn by the operator in the form of a mask. In other embodiments, Figures 3 and 4 (not shown), the tube 3 is closed at both ends, and supplied with compressed air through a T-connection 11. The tube which may be curved is fastened to the shield 1 by means of a stud 8, welded to the tube.
Patent GB-1363210-A (GB)
Title: Vacuum cleaner nozzle
IPC: A47L9/02
Filed: 1972-12-13
Abstract: 1363210 Suction cleaner nozzles GENERAL SIGNAL CORP 13 Dec 1972 [30 Dec 1971] 57520/72 Heading A4F A suction cleaner nozzle has, mounted in a portion 40A of the suction flow passage 40 therethrough of restricted cross-section, a flexible member 42 which is vibrated with a whip action by the air-flow to produce pulsations therein. The member 42 is of rubber and is carried by a plate 46 having a projection 58 engageable by a cam 56 Fig. 2 (not shown) on a beam (52) adjustable by rotating buttons 50 Fig. 5 (not shown) to displace the plate 46 into a recess 44A Fig. 6 (not shown) so that the member 42 is rotated through 90 degrees into an in operative position. Brushes at the sides of the inlet opening 16 are adjustable by a rotary cam 20.
Patent GB-1431502-A (GB)
Title: Gas purification apparatus
IPC: B01D53/04
Filed: 1973-12-13
Abstract: 1431502 Absorption of gases DEUTSCHE BABCOCK & WILCOX AG 13 Dec 1973 [15 Dec 1972 11 Oct 1973] 57757/73 Heading B1L An apparatus for the purification of gases by removal of impurities by absorption by particulate material has a vertical housing divided by two substantially vertical apertured walls 3 and 4 which define between them a chamber for containing the absorbent and further intermediate walls 11-15 which divide the chamber into at least three sections bounded by the apertured walls. The inlet for gas 9 is positioned and connected to permit gas for filtering to pass horizontally through all sections and the outlet 10 to permit gas to flow from the housing. The flow of gas through the sections is controlled to prevent flow through two sections at any time e.g. 17 and 18 while allowing flow through the or each other sections and the absorbent is replaced in sections while flow of gas therethrough is prevented. In one construction described in relation to Fig. 1 the apertured walls are concentric and the intermediate walls are radial with the gas flowing through sections outwardly in a radial direction. Refinements allow gas to pass through sections in groups so that with reversing arrangements the gas can partially flow inward and partially flow outwards.
Patent GB-1335596-A (GB)
Title: Meat analogue
IPC: A23J3/26
Filed: 1971-12-20
Abstract: 1335596 Meat analog PROCTER & GAMBLE CO 20 Dec 1971 [21 Dec 1970] 59019/71 Heading A2B A process for preparing meat analogs comprises treating a dry protein mix to adjust the moisture content until a dough-like protein wet mix is formed, forming this mix into a sheet, cutting the sheet into strands, aggregating the strands into a desired fibre alignment and stabilising the fibres to form a coherent fibre mass, provided that if the protein is not heat-coagulable, either a binding material is utilised in the dry mix or the fibres after alignment and before stabilising are coated with an edible binding material. The protein may be soy or wheat protein, or egg albumen. Stabilisation may be achieved by heating the aligned fibres. A fat composition may be added prior to stabilisation.
Patent GB-1421150-A (GB)
Title: Developing apparatus useful in electrophotography
IPC: G03G15/10
Filed: 1972-12-21
Abstract: 1421150 Developing CANON KK 21 Dec 1972 [25 Dec 1971 29 Dec 1971] 59292/72 Heading G2H An electrostatic copying apparatus comprises means for pumping liquid developer from a storage tank I to a tray through which the surface 14 bearing the image to be developed is moved and a toner concentration detector in the tank arranged to receive developing liquid from the pumping means. A pump 4 supplies developer through pipes 12 and 19 to the space between photo-conductive drum 14 and developing electrode 18 which electrode provides the tray The developer is continuously agitated by a bladed impeller 3 and is filtered before entering the pump intake port 10 by passage through a filter 11. Photo-electric means, Figs. 4, 5, 7, 8 and 9, (not shown), is provided in the tank for detecting the toner concentration and control means responsive to the detector supplies additional toner as required. The detecting means may have a passage through which freshly agitated developer from the pump passes. The walls of this passage may be coated with a material to prevent contamination by toner (examples of suitable materials are given). The walls may also be charged to prevent toner deposition thereon. The photo-cell and its light source may be positioned on opposite sides of the passage or on the same side with a reflective element situated on the opposite side. Developer liquid may also be pumped to a cleaning position through pipes 20, 21 and 22 where it acts as a cleaning fluid. A blade cleaner 23 may be provided.
Patent GB-1240197-A (GB)
Title: Process for the preparation of normal mono-olefins
Inventor: BLOCH HERMAN SAMUEL
IPC: B01J23/58
Filed: 1968-12-17
Abstract: 1,240,197. Dehydrogenating n - paraffins. UNIVERSAL OIL PRODUCTS CO. 17 Dec., 1968 [22 Dec., 1967], No. 59829/68. Heading C5E. n - Paraffins are dehydrogenated to n - monoolefins in the presence of hydrogen and a catalyst comprising a platinum metal component, an alkali component and alumina, the operating conditions including a liquid hourly space velocity in the range 10-40 and a superficial linear gas velocity of at least 0À305 metres / second. The catalyst preferably contains a fourth component selected from As, Sb, Bi, S, Se, Te and compounds thereof. An inert diluent may be present, e.g. steam, CO 2 , methane or benzene. In examples, the feed is n - dodecane or a mixture of C 11-24  n - paraffins.
Patent GB-1333318-A (GB)
Title: Plastics laminate
IPC: C08L33/00
Filed: 1971-12-23
Abstract: 1333318 Laminates SUMITOMO CHEMICAL CO Ltd 23 Dec 1971 [29 Dec 1970] 59948/71 Heading B5N [Also in Division C3] A laminate comprises a syntheitc resin layer and a layer adhered thereto which comprises an acrylic resin and has incorporated therein a graft copolymer of an ethylene/vinyl acetate copolymer with vinyl chloride or with vinyl chloride and another graft comonomer. The synthetic resin may be copolymer of butadiene and styrene with acrylonitrile (ABS) or methyl methacrylate (MBS), a polystyrene, polypropylene of PVC resin or a blend of PVC with MBS. The acrylic resin may be a homopolymer of methyl methacrylate or methyl acrylate or a copolymer of one of those monomers with one or more vinyl monomers. The graft copolymer and additives such as ultra-violet absorbing species, colouring agents or stabilizers may be incorporated into the acrylic resin by kneading, rolling or extruding. The layers may be bonded by the use of an ethylene/vinyl acetate copolymer adhesive or film. The laminate may be bonded to a substrate such as metal, wood or glass. The acrylic/graft copolymer layer is said to weather proof the resin layer.
Patent GB-1330646-A (GB)
Title: Rail vehicle bogies
IPC: B61K11/00
Filed: 1970-12-18
Abstract: 1330646 Lifting rail vehicles RHEINSTAHL AG 18 Dec 1970 [31 Jan 1970] 60183/70 Heading B7L A rail vehicle has provided on the undersides of the ends of bogie cross members lifting claws which are engagable by ropes 5 of lifting gear 6, the said cross members extending to the width of the vehicle body.
Patent GB-1337351-A (GB)
Title: Electronic control circuits for a mechanical oscillator
IPC: G04C3/06
Filed: 1971-12-29
Abstract: 1337351 Electronic watches KIENZLE UHRENFABRIKEN GmbH 29 Dec 1971 [28 Dec 1970] 60292/71 Heading G3T A drive circuit for maintaining and stabilizing the amplitude of oscillation of a mechanical oscillatory system e.g. in a watch, is illustrated in Fig.1 and includes a drive transistor 3, first and second control transistors 1, 2, and drive and control coils 4, 5 respectively. In an alternative circuit Fig.2 (not shown) the base of transistor 2 is connected to the junction of a pair of resistors connected in series across the emitter/collector path of transistor 3. In a further modification the control coil and capacitor are transposed. The control coil 5 is inductively coupled to the mechanical system and when a voltage of appropriate polarity is induced therein transistor 3 and to some extent 1, 2 are rendered conducting at the same time. The degree of conductivity of 1, 2 depends upon the magnitude of the induced voltage pulse and the amplitude of oscillation. The more conductive the control transistors 1, 2 become, the less conductive will be the drive transistor 3 and vice-versa, since the working point of 3 depends upon the charge in a capacitor 7 and the potential at the junction of the transistor 1 and R6 which form a voltage divider.
Patent GB-1372060-A (GB)
Title: Method and device for gaining fish meat
IPC: A22C25/16
Filed: 1971-12-31
Abstract: 1372060 Processing fish NORDISCHER MASCHINENBAU RUD BAADER 31 Dec 1971 61045/71 Heading A2U The skeleton of a fish remaining after filleting is cut to separate the dorsal and belly extensions of the vertibrae from the vertibral column, or at least from that part of the column in the region of the abdominal cavity. The dorsal and belly extensions may then be pressed to recover flesh. The method may be performed by manually handled, power driven scissors or a circular saw, or by an arrangement, Fig. 4 (not shown), in which the skeleton is drawn by hand past rotary cutters or an endless band knife to make a cut so that the skeleton is divided into one part comprising the vertibral column in the region of the abdominal cavity and a second part comprising the remainder of the skeleton. Fig. 1 shows a combined filleting and skeleton-cutting machine in which fish 27 are advanced tail first by conveyer elements 22 between guides 26, bellyslitting cutters 23, back-slitting cutters 24, and inclined rib cutters 25 for the severance of two fillets 28, and the skeletons are then conveyed between upper and lower pairs of guides 6, 12 to a station at which further cutters 18, 19 sever the dorsal and belly extensions 31, 32. The cutters 18, 19 may be circular discs, as shown, or pairs of shears or endless band knives. Alternative conveyor means for the fish may comprise a tail clamp, or bands, rollers or discs with serrations or prongs.
Patent GB-1293947-A (GB)
Title: An induction motor
Inventor: FABBRINI ORAZIO
IPC: H02K17/30
Filed: 1969-12-18
Abstract: 1293947 Magnetic amplifiers O FABBRINI 18 Dec 1969 [19 Dec 1968] 61664/69 Heading H3B [Also in Divisions H1 and H2] The stator winding of a single or polyphase squirrel-cage induction motor 1, 2 and the A.C. winding of a saturable reactor 3, 4, are constituted by a single winding 7. The common winding 7 extends through slots 11 in both the motor stator core 1 and an annular outer core 3 of the reactor. The D.C. winding of the reactor is wound in slots 12 of a cylindrical inner core 4 which may be fixed to the outer core 3, fixed to the motor shaft 6 or mounted in bearings on the motor shaft 5. The motor stator core 1 and the reactor outer core 3 may be integral. The reactor may be used to limit the starting current, correct the power factor or control the speed of the motor.
Patent GB-667433-A (GB)
Abstract: 667,433. Docks; locks. ETABLISSEMENTS NEYRPIC, and ENTREPRISE FOUGEROLLE POUR TRAVAUX PUBLICS. Feb. 7, 1950. [Feb. 9, 1949] No. 3191/50. Classes 68 (i) and 68 (ii). In a dock or lock having one or more spaces 6 beneath the bottom 5, the intake and discharge of water is effected through apertures 11 in the bottom communicating with the spaces 6 which themselves communicate with a conduit 9.
Patent GB-674350-A (GB)
Abstract: 674,350. Endless conveyers. WOLVERHAMPTON DIE-CASTING CO., Ltd., WEST, V. J. and STOCKHAM, F. C. Jan. 26, 1951. [Jan. 31, 1950] No. 2439/50. Class 78 (i). [Also in. Groups V and XXII] In a die-casting or injection-moulding machine each article is formed integral with a slug or runner, part of which is cast on to a movable band extending between the dies. In one form, Fig. 1, an endless steel band 5 is mounted on a carrier 4. After the casting or injection moulding operation, the dies 1 and 2 (not shown) are separated and the band is moved longitudinally by a pawl engaging a series of holes 25 in the band and reciprocated by a fluid pressure cylinder 24. On a further longitudinal movement of the band, a slug is removed from the band by the inclined edge of a shoot 27. The band may be formed with notches 28 for the better keying of the slug. In a modification Fig. 5, two parallel bands 5 pass between the dies, the mould cavity 9 communicating with transverse spacers 34 in which are cast bars 35 keyed to the bands 5. The bands are moved by means of a member 21 operated by a fluid pressure cylinder 24 and having pegs 36 engaging in holes 25 in the return runs of the bands when the die 2 is in the fully withdrawn position.
Patent GB-703335-A (GB)
Abstract: 703,335. Knitting. LOMBARDI, V. May 3, 1949, No. 11793/49. Class 74 (2) In order to provide that knitting of yarn laid on the reverse swing of a wrap yarn feed, during round and round knitting, shall proceed from that point furthest from the feed and so allow the normal yarn robbing to occur, cam means are provided to set up, in knitting elements concerned, a knitting wave travelling in the direction opposite to that of the normal knitting wave. Wrap yarn feeds such as 30- 40 swing, first in one direction and then in the opposite direction, each across sixteen needles, and are spaced eight needles apart, so that two lots of wrap yarn may be laid in the hooks of selected needles. All or selected ones of alternate feeds are operated at one needle operation and all or selected ones of intervening feeds at a succeeding needle operation. At the first swing, knitting is effected by normal needle cams ; but on the reverse swing the needles are lowered in reverse order by cam sets such as 73, acting on jack butts 12. Sinkers 140, additional to normal sinkers 16b may similarly be projected in reverse order by cams 153 acting on butts 145. The normal and additional sinkers are accommodated in pairs in common slots, being ground away in thickness where necessary. The butts 145 are borne on portions 148, extensions 150 of which enter guide slot 151 in a ring 152. Alternatively, butts 171 may be provided on horizontal portions 170 of the additional sinkers. The fabric may be of wrap yarns only ; or yarn may also be supplied from main feeds and needles selected by a drum for advance to clearing height or tucking height. Specifications 517,219 and 601,252 are referred to.