baber/WOPTO huggingface dataset:
Patent GB-1385531-A (GB)
Title: Surgical drainage device
IPC: A61M39/24
Filed: 1972-08-29
Abstract: 1385531 Drainage appliances PETER STEER DEVELOPMENTS Ltd 5 July 1973 [29 Aug 1972] 39936/72 Heading A5R A surgical drainage device comprises a valve chamber 1 having a liquid inlet 2 and a liquid outlet 4 arranged opposite each other, a main valve 6 inside the chamber 1 in line with inlet 2 and outlet 4, so that a trocar can be passed therethrough, the main valve 6 being opened by passage of the trocar but being unable to open under pressure of liquid, and a non-return valve 7 communicating with the inlet 2 to by-pass the main valve 6 and to permit liquid flow from the inlet 2 into the chamber 1 but not in the reverse direction. Chamber 1 is made of transparent, preferably flexible plastics material, of cylindrical, elliptical or oval cross-section. A catheter 3 is preferably permanently attached to inlet 2. A trocar is inserted through outlet 4, valve 6, inlet 2 and catheter 3. When the trocar is withdrawn, valve 6 closes under spring action. Liquid flows through catheter 3, inlet 2 and a non-return valve 7 into chamber 1 and out by outlet 4. Thus, in case of mishap air entering chamber 1 from outlet 4 cannot enter the patient's body via catheter 3.
Patent GB-1328374-A (GB)
Title: Electrophotographic copying process
IPC: G03G15/05
Filed: 1970-08-19
Abstract: 1328374 Electro-photographic material ITEK CORP 19 Aug 1970 [3 Sept 1969] 40003/70 Heading G2H  An electro-photographic medium which may be rendered irreversibly conductive, comprises a support having coated thereon an organic halogen derivative capable of forming a hydrohalide acid on exposure to light and (a) a cyanine dye base of formula (b) a spiropyran of formula (c) an N-vinyl carbazole of formula (d) a dipheny ethylene of formula or (e) a leuco xanthene of formula In the above formulae, d and e are 1 or 2; n is 1 to 4; R is alkyl, aralkyl or aryl; R<SP>1</SP> is H or CN; Q and Z are the atoms necessary to complete a 5 or 6- membered heterocylic nucleus; Y<SP>1</SP> is two radicals at least one being NO 2  and the other NO 2 , OCH 3 , Ce, Br, I or F; R<SP>11</SP> is H or alkyl; a is O to the number of replaceable hydrogen atoms in the aryl nucleus and Y is a substituent radical preferably Br. In the specific embodiments the organic halogen derivative is carbon tetrabromide, hexabromoethane or tribromoacetophenone together with N-vinyl carbazole or a specific cyanine dye base and a resin Many organic halogen derivatives, resins and examples of the compounds of Formulae I to V are given. In use the medium is exposed to an image, charged and then developed. Multiple copies may be taken from the exposed medium by repeating the charging and developing steps.
Patent GB-1406612-A (GB)
Title: Continuous rod making machines
IPC: A24C5/34
Filed: 1971-08-26
Abstract: 1406612 Recovering surplus tobacco MOLINS LTD 24 Aug 1972 [26 Aug 1971] 40166/71 Heading A2E [Also in Division Gl] In a cigarette rod guiding system with means for blowing away surplus tobacco waste caught in a cigarette guide for a scanning system (such as that disclosed in Specification 1342064), wherein a rod guide member supports the rod upstream and downstream of the scanning region (see dotted line square Fig 6) in which beta radiation is passed through windows (20), (22) formed in the guide member and received by an ionisation chamber, the guide member is positioned inside a hollow tubular member 4 adjacent surfaces 2 and 4 of the member being formed to define at least one passage 45, 56 (Fig 7) through which air is passed during use along the outside of the guide member and inwards through the windows to blow out tobacco etc which may be caught between the rod and the rod guide member. As shown in Fig 6 compressed air may be fed during use to an annular space 42, through an opening 44 into an oblique passage 46 so that the air from the passage 46 is directed towards the lap of the cigarette rod wrapper. Air also may be fed from the annular space 42, via a top slot (aligned with opening 44) into an annular space 52 through which the air flows to the window and into the side passages 54 and 56. The hollow tubular memiber 4 is formed with windows aligned with the windows in the rod guide 2 and which are covered internally by a thin metal sheet.  An artificial cigarette (Fig 10 not shown) may be inserted into the rod guide member to check the correct operation of the scanning system, the presence of the artificial cigarette being sensed by a switch or other means which automatically moves a shutter to allow a radiation beam to be passed through the artificial cigarette. The shutter has an associated spring so that the shutter returns to block the beam path when the artificial cigarette is removed from the rod guide member.
Patent GB-1016381-A (GB)
Title: Process and machine for making valve bags
IPC: B31B70/00
Filed: 1962-10-23
Abstract: 1,016,381. Plastics valve bags. G. HANSEN. Oct. 23, 1962 [Nov. 21, 1961], No. 40176/62. Heading B8K. [Also in Division B5] A slit 14 (Fig. 3, not shown) in a flat plastics bag has a valve flap 150 welded behind it on three sides 151.
Patent GB-1061760-A (GB)
Title: Improvements in or relating to electrodialysis apparatus
IPC: B01D61/46
Filed: 1963-10-11
Abstract: <PICT:1061760/C6-C7/1> <PICT:1061760/C6-C7/2> Electrodialytic fluid treatment apparatus comprise a tank containing at least one dilute or product stream outlet opening 37 in its upper portion and a concentrate stream opening 38 in its lower portion, membrane supports 27 disposed across the top of the tank, strips of ion permeable membrane 31 hanging from the supports and extending across the tank between the side walls, tensioning means such as weights 32 at the lower edge of each strip of membrane, and electrodes 21, 22 disposed within the tank adjacent the end walls.  Liquid inlets may be provided at 36 or near the bottom of the cell.  The membranes may be parallel sided strips of cationic material secured by O-ring ropes within keyhole slots in the supports and weights, the supports being extended at the top to a width greater than the tank which may be castellated as at 30 to receive them.  Alternatively the membranes which tend to flex away from the cathode may be provided with wings 67, Fig. 13, which bear in a trailing sense against the side walls, the membranes being cut away adjacent the top and bottom to provide free access of liquid between the compartments. In other arrangements the membranes may be formed by loops of material, which may be endless, suspended from the supports with a weight carried within the bight Figs. 8 to 12 (not shown).  With such membranes each compartment between vertical runs of membrane may be supplied with a central inlet and upper and lower outlet pipes. If desired the straight-sided membranes may be made of greater width than the weights and the inside of the tank, vertical slots being cut in the side walls to accommodate them Figs. 6, 9 (not shown).  The electrodes are disposed in chambers defined by fixed membranes and are fed with a washing fluid at by pipes 25, 26, this fluid being removed with the concentrate fluid.
Patent GB-1534568-A (GB)
Title: Grinding machine
IPC: B24B19/11
Filed: 1977-08-23
Abstract: 1534568 Grinding ELECTROFABRICATION & ENG CO Ltd 23 Aug 1977 [28 Sept 1976] 40274/76 Heading B3D A machine for shaping the arcuate outer surface of a ring, disc or like circular member, such as a piston ring 6, comprises at least one rotatable grindstone 12 having a surface 14 which is concave and symmetrically disposed about the axis of rotation, support means 4 for locating the member in a plane containing said axis of rotation, and drive means 8 for providing relative rotation between the member and the or each grindstone about the central axis of the member, the concave surface 14 making pressurized contact with the arcuate outer surface of member to impart thereto a curvature in a direction parallel to the central axis of the member. The support means consists of a plurality of rollers 4 freely rotatable about vertical axes on a table 2 and the drive means consists of a pair of drive rollers 8 which frictionally engage the circular member so as to rotate it about its central axis P with its outer surface engaged by the concave surface 14 of the grinding wheel 12 which is adjustable radially of the member. The radius of the concave surface 14 equals the radius of the outer surface of the circular member which is thereby ground to a barrel-like configuration. The circular member is located vertically at the grinding zone by rollers 14 which press the member against upstanding hardened skirts 16 on the table. In other embodiments, a plurality of grindstones may be disposed around the periphery of the circular member, and the latter may be held stationary and the or each grindstone rotated about the ring. The or each grindstone may be pivotable about the region of grinding contact to decrease the radius of curvature ground on the ring.
Patent GB-1322594-A (GB)
Title: Friction dampers in washing machines
IPC: D06F37/22
Filed: 1970-08-21
Abstract: 1322594 Resiliently mounted friction dampers THOMSON-BRANDT 21 Aug 1970 [9 Sept 1969] 40489/70 Heading F2S [Also in Division D1] A member 4 is mounted on a member 2 by a friction damper comprising a friction pad 9 between a plate 7 and a plate 8, in series with a resilient member e.g. a rubber block 20, having different flexibilities in perpendicular directions. The friction damper comprises two spring plates 8 bearing pads 9 which press on a spring plate 7. Instead of being interposed between the member 4 and the plate 7, the block may (Fig. 4, not shown) come between the member 2 and the plates 8. The member 4 is a chamber surrounding the rotating drum of a washing machine, and is suspended (Fig. 1, not shown, but see Division D1) from the casing member 2 by springs (6) acting in parallel with the above series arrangement.
Patent GB-897228-A (GB)
Title: Improvements in or relating to display cartons
Inventor: DEVERY KEERRAN VIVIAN
IPC: B65D5/50
Filed: 1959-11-30
Abstract: 897,228. Display cartons. TAYLOWE Ltd. Nov. 25, 1960 [Nov. 30, 1959], No. 40608/59. Class 18. A display carton comprises top and side walls 1 and 4, formed from a pair of similar blanks, each having a pair of arcuate scorings 3 with the side walls when assembled assuming a longitudinally fluted configuration. A particle is retained between a top platform (not shown), which is held in position frictionally by the side wells 4 and a bottom platform 6, held in position between bent-up flaps 5 and located by tongues 9, engaged contiguously within slots 10, formed in the bottom platform, which is provided with an opening 7 to locate the article in the carton and the former may be viewed through a cutout window 15. Folding of the abutting side walls is facilitated by scoring at 16 and additional rigidly imparted by forming the side wall flaps on one blank with tabs 12, which can lock into the flaps 5 on the other blank.
Patent GB-1032123-A (GB)
Title: A filter
IPC: B01D29/00
Filed: 1962-10-29
Abstract: Suspension is admitted at 311, Fig. 1 (not shown) to fill a cylindrical vessel 1 with conical base 4.  Vacuum is then applied to vertical leaf elements 24, Figs 3 and 4 (not shown) filtrate being withdrawn at their tops 29, Fig 3, to a filtrate tank 31 on the vessel cover 5.  Thereafter compressed air is introduced to the vessel interior at 51 to effect filtration under pressure.  Next, feed is stopped and suspension is withdrawn through a pipe 39 at the base of the tank, compressed air being fed in to dry the filter cakes.  Then pneumatic seals 11, Fig 3, and 37, Fig. 4, are depressurized, a bayonet ring 6, Fig. 2, is rotated to release cover 5, and a hatch slide 38 at the base of the vessel 1 is moved to permit cake discharge.  Then a vibrator 12 on cover 5 is set in motion, to vibrate the cover and the filter elements, which are attached to it, to shake off the cakes, the filter elements being pressurized by compressed air.  (The cover 5 rests on springs, not shown, on jacks 15 to enable this to be done).  Then vibrator 12 is stopped and hot water is sprayed from perforated tubes 40, Fig. 4, on to the filter elements. Finally, spraying is stopped and the filter units are depressurized.
Patent GB-1122065-A (GB)
Title: Herbicides
Inventor: WOOD THOMAS F
IPC: C07C205/06
Filed: 1965-09-27
Abstract: 1,1,4,6 - Tetramethyl - 5,7 - dinitroindane, 1,1 - dimethyl - 6 - ethyl - 5,7 - dinitroindane, 1,1,3,3 - tetramethyl - 5 - ethyl - 4,6 - dinitroindane, 1,1,3,3,5 - pentamethyl - 2 - ethyl - 4,6-dinitroindane, 1,1,3,5 - pentamethyl - 6 - ethyl-4,7 - dinitroindane, 5- (and 7) - nitro - 1,1,4,6-tetramethylindane, 6 - ethyl - 4 - (and 7-)nitro-1,1,3,3,5-pentamethylindane and 1,1-dimethyl-6 - cyclohexyl - 5,7 - dinitroindane are prepared by direct nitration of the corresponding unnitrated indane.ALSO:A herbicidal composition comprises a compound of the formula:- <FORM:1122065/A5-A6/1> wherein R1 is a hydrogen atom or a C1-C3 alkyl radical, with the proviso that at least one of the radicals R1 is hydrogen, and further provided that if dimethyl substitution occurs in both the 1 and 3 positions at least one of the following conditions must prevail: a) there is at least one alkyl substituent having from 2 to 3 carbon atoms in the 2 position, and b) there is an alkyl substituent having from 2 to 5 carbon atoms in the 5 position; R2 is a hydrogen atom, an alkyl radical with from 1 to 5 carbon atoms or a cycloalkyl radical; A is a hydrogen or oxygen atom; n is an integer of from 0 to 2; m is an integer of from 1 to 4, and where m plus n is a maximum of 4, dissolved in or dispersed on an agricultural carrier.  The composition may take the form of a dust, wettable powder, solution or aqueous emulsion.
Patent GB-1346809-A (GB)
Title: Remote control assembly
Inventor: BENNETT W
IPC: F16C1/22
Filed: 1971-09-03
Abstract: 1346809 Actuating push-pull cables TELEFLEX Inc 3 Sept 1971 [8 Oct 1970] 41231/71 Heading B7E [Also in Division F2] A Bowden mechanism comprises a fixed outer sheath 12 and a movable core 14 having adjustment means 28, 30 which allows the core 14 to move relative its plastics end fitting 22 on the application of a push, or pull, force in excess of the normal operating force required for controlling for example an automobile heater vent (not shown), whereby the overall effective length of the core 14 relative the outer sheath 12 may be automatically readily adjusted to correctly position, as required, the core operating knob (not shown) when the core 14 and connected heater vent have been moved to a maximum i.e. extreme position and bottomed out during initial installation of the arrangement. As shown the core 14 is formed at its end with a coiled elongated, or circular, loop 30 which expansively frictionally grips a channel 28 in the nylon or polyethylene end fitting 22 sufficient for normal push-pull operation but slips on excess load for adjustment purposes as above described, whilst in Fig. 4 (not shown) the core 14 has a serrated ratchet connection 40, 44 which can allow one-way relative movement, i.e. ratchets, on excess load.
Patent GB-1525840-A (GB)
Title: Pressure-sensitive or heat-sensitive recording material
IPC: C09B23/00
Filed: 1976-10-06
Abstract: 1525840 Thermographic materials CIBAGEIGY AG 6 Oct 1976 [8 Oct 1975] 41576/76 Heading G2C [Also in Divisions C4 and D2] A heat-sensitive recording sheet contains as a colour former at least one compound of the Formula wherein each of R 1  and R 2  represents C 1-  5  alkyl, cycloalkyl, or benzyl, or together represent alkylene and X represents alkyl of at most 12C atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano, C 1-5  alkoxy, or alkoxycarbonyl having 1 to 5C atoms in the alkoxy group, or benzyl which is unsubstituted or substituted by halogen, nitro, C 1-5  alkyl or C 1-5  alkoxy, and the rings A are unsubstituted or substituted by halogen, nitro, cyano, trifluoro-methyl, C 1-5  alkyl, C 1-5  alkoxy, alkoxycarbonyl having 1-5C atoms in the alkoxy group, phenyloxy, amino, C 1-5  alkylamino, or N-C 1-5  alkyl-carbonylamino. This colour former is mixed with an acid and a binder and coated on a support to produce the sheet.
Patent GB-1190980-A (GB)
Title: Treatment of Silica Sols
Inventor: BURNS PATRICIA GERTRUDE
IPC: C01B33/145
Filed: 1967-09-12
Abstract: 1,190,980. Analysing silica sols. MONSANTO CHEMICALS Ltd. 23 Aug., 1968 [12 Sept., 1967], No. 41593/67. Heading B1X. [Also in Division C1] A process for determining a particle size distribution curve for silica particles in a sol comprises placing the sol on a permeable bed of a porous gel, which gel comprises a solid phase substantially insoluble in the liquid dispersion medium of the silica sol and a liquid which which is the same as or is at least partially miscible with that liquid dispersion medium, the gel having an average pore size of the same order of magnitude as the average particle size of the silica, washing the silica through the bed with an eluant which is the same as or at least partially miscible with the liquid dispersion medium and with the liquid phase of the gel, collecting one or more fractions of the effluent and determining the silica content of each fraction, for example by measuring its specific gravity. The molecular weight of the silica in each fraction may be determined by light scattering. The solid phase may be a polysaccharide e.g. agar agarose, or dextran, a cross-linked polysaocharide e.g. dextran cross-linked by treatment with epichlorhydrin, silica gel, or materials based on cross-linked polyethylene and cross linked polystyrene. The eluant and the gel liquid phase may be water brought to the same pH as the sol in the case of alkaline silica aquasols and 0.1% formalin may be added to combat growth of algae etc. The bed is usually in the form of a column, and may be eluted under pressure. The gel bed may be calibrated with a control sol.
Patent GB-1043529-A (GB)
Title: Improved reversible mechanical drive
Inventor: SANDERSON GEORGE DOUGLAS
IPC: F16H13/00
Filed: 1962-11-02
Abstract: 1,043,529. Friction gearing. SOUTHERN INSTRUMENTS Ltd. Sept. 2, 1963 [Nov. 2, 1962], No. 41615/62. Heading F2Q. Two output friction wheels 11, 12 are selectively driven through an idler 8 from an input wheel 3 in accordance with the direction of rotation of the latter, and the idler 8 is carried by a lever 6 pivotally mounted on the input shaft. The input wheel 3 is driven by a reversible electric motor 1. A forked end 5 of the lever 6 engages recesses in a bearing 2 and a spring 10 urges the idler into engagement with the input wheel 3. The idler 8 is provided with a rubber tyre 9. The device may be used to drive the spools of a tape recorder.
Patent GB-1375763-A (GB)
IPC: F22B37/14
Filed: 1972-09-07
Abstract: 1375763 Boilers KRAFTWERK UNION AG 7 Sept 1972 [7 Sept 1971] 41662/72 Heading F4A In a boiler having a combustion chamber wall and at least one partition 4 formed as tube assemblies, the inlet of the partition tubes is connected to the inlet of the wall tubes and the outlet of the partition tubes is connected between the inlet and the outlet of the wall tubes; a valve 10 being provided to regulate the rate of flow through the partition tubes to maintain the outlet temperatures of the wall tubes and partition tubes at predetermined values. In the embodiment shown a helical wall tube assembly 51 is employed for approximately two-thirds of the boiler wall and vertical tubes 54 then continue from a distributer pipe 53; the outlet of tubes 4 feeding into pipe 53. A further control valve 9 is employed at the inlet to the wall tubes and, as disclosed in Specification 1,374,835, a control device (not shown) can operate the valves 9, 10 in response to the outlet temperatures of, and flow rates through the wall and partition tubes to ensure that the enthalpy of steam at the partition tube outlet is the same as that at the distributer pipe 53 to ensure satisfactory mixing of the two steam flows.
Patent GB-1419116-A (GB)
Title: Shapoo composition
IPC: A61K8/92
Filed: 1972-09-08
Abstract: 1419116 Shampoos UNILEVER Ltd 26 July 1973 [1 Aug 1972 8 Sept 1972] 35901/72 and 41715/72 Heading C5D An aqueous shampoo for imparting cosmetic attributes to the hair comprises a surfactant, a perfume and a solubilized or dispersed waterinsoluble wood rosin which is deposited on to hair upon dilution of the shampoo during shampooing. The wood rosin may be pine rosin or a polymerized, hydrogenated, isomerized, disproportionated esterified or etherified wood rosin. It may be a mixture of rosins to provide a product with a softening point of 0‹ to 50‹ C., e.g. a mixture of a glycerol ester of polymerized rosin and a hydrogenated methyl ester of rosin of softening point 30‹ to 40‹ C. The shampoo contains 2À5 to 15% wt. of the rosin. Solubilization is by means of a surfactant, e.g. salt of a C 12 -C 21  fatty alcohol sulphate or a C 12 -C 21  fatty alcohol ether sulphate and a water miscible solvent, e.g. C 2 -C 3  alkanol, a di- or tri-hydric alcohol, a glycol ether or a mixture thereof. The suspending agent is one which provides thickening, structure and thixotropy to the shampoo, e.g. carboxylated acrylic polymers and is used in quantities of 0À5 to 5%. Optional ingredients are (A) water-immiscible solvents, e.g. halogenated hydrocarbons, (B) lubricants, e.g. cetyl palmitate, glycol polysiloxanes, mineral oils and mixtures thereof, (C) lather boosters and/or stabilizers, e.g. coconut amide and laurie diethanolamide, (D) soaps, non-ionic and cationic surfactants, (E) colouring.
Patent GB-859859-A (GB)
Title: Improvements in or relating to stuffing box glands
Inventor: HOPKINS ERNEST
IPC: F16J15/18
Filed: 1958-12-29
Abstract: 859,859. Stuffing-boxes. BELL'S ASBESTOS & ENGINEERING Ltd. Nov. 11, 1959 [Dec. 29, 1958], No. 41871/58. Class 122 (5). To facilitate its application or removal a stuffing-box gland is formed by two co-operating parts 1, 2, each including a half-cylindrical portion 1a, 2a and an end flange portion 1b, 2b with a stud hole 1c, 2c. One part 1 has two limbs 1d spaced apart a distance at least equal to the internal diameter of the cylindrical portion 1a and provided with abutments 1e, and the other part has shoulders 2e adapted to coact with the abutments 1e so that the parts, when assembled together, resist lateral separation. The limbs 1d are reduced in thickness towards the abutments 1e to form tapered surfaces 1# which co-operate with corresponding surfaces 2f on the part 2.
Patent GB-1291907-A (GB)
Title: Muffling the exhaust of compressed gas actuated tools
IPC: E21B7/02
Filed: 1970-09-02
Abstract: 1291907 Rock drills WORTHINGTON CORP 2 Sept 1970 [2 Sept 1969 30 April 1970] 41920/70 Heading B3C [Also in Divisions B4 and F1] Rock drilling apparatus comprises a pneumatic hammer drill 20 mounted for movement along a mast 44, which defines an internal chamber 42 into which exhaust air from the drill is discharged via exhaust ports 88, chamber 90 and openings 96 in the front wall 38 of the mast. The mast includes an apertured plate 46 the edges of which form guides along which the drill slides. The drill is driven by a motor (76), (Fig. 1, not shown), via a chain 78 attached at each end to a drill mounting plate 62. In operation compressed air with entrained oil upon exhaust from the drill passes into the atmosphere via the chamber 90, openings 96 and chamber 42 and is thus muffled and oilis deposited on the chain and on the sliding surfaces. In a modified embodiment (Fig. 5) the drill includes a percussion motor 20 and a separate pneumatic motor 100 for rotating the drill bit and exhaust air from this separate motor is conveyed to the chamber 90 via a conduit 102. The chamber 42 is provided with sound absorbing material 106. A portion 112 of the front wall 38 and the plate 46 is not apertured so that when the drill is positioned thereover exhaust air cannot escape to atmosphere. The drill then ceases to operate. In the embodiment of Fig. 8, a muffler 200 is positioned within chamber 90. The muffler comprises spaced plates 202, 204 of which the latter is apertured, each aperture being about # inch in diameter.