baber/WOPTO huggingface dataset:
Patent GB-316649-A (GB)
Title: Improvements in the qualities of porous materials by an impregnation process
IPC: B27K3/34
Filed: 1928-05-02
Abstract: 316,649. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 2, 1928. Waterproofing; proofing against bacteria and fungi; proofing processes and compositions.- Porous materials such as wood, millboard, leather, bricks, concrete, and building stone, are impregnated with montan wax bleached by means of a solution of an oxidizing agent, or with esterification or saponification products of such wax, or mixtures of these. Bactericidal or fungicidal agents and other waxes, fats, oils or resins may be added. The bleached montan wax mav be obtained by oxidizing and saponifying crude or purified montan wax in the presence of a strong, preferably mineral, acid. Metallic compounds that possess bactericidal or fungicidal action such as salts of zinc, mercury, copper, &c. may be added, together with carnauba or Japan wax, linseed oil, colophony, or paraffin wax. Phenol or its homologues may also be added. Impregnation may be effected at any suitable pressure or pressures, and the wax may be melted or in solution. In one example, bleached montan wax prepared by simultaneusly saponifying and oxidicing crude or purified montan wax in the presence of a strong acic is allowed to act on dry pine timber at from 100‹ to 110‹ C. at a pressure of 50 to 80 m.m. of mercury until air no longer escapes. The vacuum is then relieved, while the temperature is maintained for about three hours. The bleached montan wax may be replaced by montan wax prepared by partially or wholly converting the free organic acids present in the bleached wax into salts or esters or by converting the carbonyl groups of the said acids or esters into other groups containing no carbonyl hydrogen atom. In a second example bricks are immersed in an esterification product of bleached montan wax and ethylene glycol at the same temperature and pressure as in the first example until all air has escaped. Air or inert gas at a pressure of 10 atmospheres is then forced into the apparatus, and the pressure maintained for 3 hours. Part of the esterification product may be replaced by paraffin wax melting at 52‹ C.
Patent GB-660864-A (GB)
Title: Improvements relating to gas filters
IPC: F02M35/024
Filed: 1949-05-16
Abstract: 660,864. Gas filters. FRAM CORPORATION. May 16, 1949, No. 12985/49. Class 8 (ii). In a gas filter comprising a casing 10 Fig. 1, having an inlet 19, first and second filtering stages 24, 29 to remove successively coarse and fine dust particles, and an outlet 11, the first stage comprises curled casein fibres and the second stage is of paper. The casein is mixed with wool fibres and is fireproofed and rendered adhesive with crezyl phosphate. The paper is corrugated and the two filters are held in a removable cartridge 21. In a modification the paper is formed as a bellows 47 Fig. 2, and the fibres are in sleeve form; the two filters being held in a removable cartridge 42 held down by a spring 49. In a further modification the paper is radially pleated within the fibre sleeve.
Patent GB-1015042-A (GB)
Title: Electro thermal work tables
IPC: H05B3/00
Filed: 1963-04-02
Abstract: 1,015,042. Electric heating resistances. A. WADE. March 31, 1964 [April 2, 1963], No. 12989/63. Heading H5H. An electrically-heated table comprises a rigid base 1 of say wood overlying which is a layer 2 of low electrical and heat conductivity such as expanded polystyrene. A heating element 4 comprising parallel closely spaced lengths of resistance wire looped at each end under the teeth of ramps of paper-based phenolithic laminate set along opposing sides of the table is sandwiched between a layer 3 of low electrical and high thermal conductivity, such as P.V.C., and a layer 8 (Fig. 2, not shown) of material of high thermal conductivity such as phenolithic laminate, forming the working surface. One ramp may be tensioned by a chain or wire 9.
Patent GB-295074-A (GB)
Title: Improvements in or relating to carding devices
IPC: D01G15/80
Filed: 1927-05-14
Abstract: 295,074. Fairbairn, Lawson, Combe, Barbour, Ltd., (Fievet, E.). May 14, 1927. Carding - engines.- In a carding arrangement employing worker and stripper rollers cooperating with intermediate means the fibre is separated from the worker roller and passes independently of such means to other rollers which transfer it to the stripper to be replaced on the main cylinder. The fibre on the worker 2, Fig. 1, is removed therefrom by a detaching device 5 such as a stationary, oscillating, or revolving stripper plate, and is guided by a cover 4, and an inclined sheet 10 to rollers 7, 8 which clean, comb, &c. the material and cooperate with the stripper roller 3. The fibres from two worker rollers disposed in close proximity may be detached and guided by suitable means to a common set of rollers and stripper roller. A shell 6 is arranged below the rollers 7, 8, and a grating may be provided at the exit end of the shell to allow for the expulsion of impurities. A cover taking the form of rollers may be used where it is desired to retain as much fibre as possible. A device of the kind described in Specifications 5468/13, 26500/13. 5661/14, and 236,813 may be used in connection with the present arrangement.
Patent GB-636590-A (GB)
Title: Improvements relating to fire-fighting appliances
IPC: A62C8/08
Filed: 1948-05-12
Abstract: 636,590. Fire-extinguishing. ECKINGTON, F. J. May 12, 1948, No. 13026. [Class 47 (ii)] A fire-fighting appliance comprises two corrugated asbestos sheets 10, 11 held together and closed at the edges by a frame 14. Water &c. supplied through a connection 13 passes along a sinuous passage 12 formed in the appliance and issues from perforations 17 in one or both sheets. The appliance may be weighted by a chain 15 and may be provided with handling ropes 16,
Patent GB-185471-A (GB)
Title: Improvements in or relating to heating apparatus particularly for use with foster-mothers and the like
IPC: A01K31/19
Filed: 1921-05-07
Abstract: 185,471. Robinson, T. May 7, 1921. Air-heating stoves.-A stove for heating brooders &c. comprises a hollow-walled casing a carried by a stand comprising tubular supports n carrying a trough o into which the open lower end of the casing fits. External air enters the casing through the tubes n and after being heated passes into the brooder, the products of combustion from the heating-means ! l being vented outside the brooder. In the stove shown the casing a is of conical form and the tubes n are, surrounded by gauze or mica screens -enclosing the heating-means l, which may be a lamp serving also to light the interior of the brooder. The tubes n may pass through the lamp reservoir, which is cooled by the air circulation. The combustion products pass through a chimney q to the interior of the casing a, which they leave by a tube d, passing thence by openings j in a baffle-plate i arranged in the conical hood h to the outlet k. The air, after leaving the hollow casing a at the top, passes beneath a partition g in the hood h, and finally enters the brooder under the edge of the hood. The casing a may be of double conical form as shown in dotted lines. In a modification, the inner wall of the casing is formed with an inwardly projecting enlargement at the lower end having a central opening for the combustion products. In a further modification adapted to stand against the side of the brooder, the coned top h is dispensed with and one side of the casing a is made flat.
Patent GB-552034-A (GB)
Title: Improvements in and relating to electric resistances
IPC: H01C1/148
Filed: 1941-10-10
Abstract: 552,034. Wire resistances ; resistance supports. HUHNE, H. P. Oct. 10, 1941, No. 13069. [Class 37] Resistances are provided at their ends with flat contact blades which fit into fixed spring clips, the blades and clips being formed so as to enable the resistance to be secured in place with good electrical contact against displacement by accident or vibration, whilst permitting ready removal and replacement. Slotted flat end blades 1, Fig. 1, are carried by supports 2 secured to each end of a porcelain or earthenware tube A which carries a resistance wire B embedded in a vitreous enamel covering. The blades 1 detachably engage spring clips 4 mounted on a base. The blades 1 are pressed up from metal blanks of' the 'shape shown in Fig. 2. These are folded in half along the centre line x to form the blade 1, Fig. 5, and the perforated semi-circular ends 1a are bent up along the lines 1y, 1z to form a perforated end plate 1e. This is secured in the flanged end of a tubular support 2 forming a plug which fits into the end of the tube A. The spring clips 4 comprise flat resilient jaws 4a which are perforated to take a screwed cross pin 5 over which a slot 1d in the blade 1 fits. Alternatively counterpart dimples and bosses may be provided on the blades and the spring jaws. The pin 5 engages a spring nut 5a so that the jaws of the clip can be tightened against the blade 1. The clip is held to the base by a bolt and nuts, which also serve as a terminal. The leads C of the resistance unit are connected to the blades 1 by screw terminals 1f. In a modification the blades are cast integral with caps fitting over the ends of the tube A, to which they are cemented. The clips 4 may have their resilient jaws 4a formed by the flat returned ends of the sides 4x of the clip as shown in Fig. 11. In a modification the blades 1 are secured to the projecting ends of central internal partitions at each end of the tube A or of a single partition extending the length of the tube and projecting at each end. Alternatively the blades may be riveted or otherwise secured to the ends of a flat insulating plate about which the resistance is wound.
Patent GB-1391421-A (GB)
Title: Folding device for use in cigarette filter rod making apparatus
IPC: A24D3/02
Filed: 1971-05-04
Abstract: 1391421 Tobacco-smoke filter manufacture ROTHMANS INTERNATIONAL LTD 4 May 1972 [4 May 1971] 13071/71 Heading A2C [Also in Division Dl] A folding device, for use in cigarette filter rod making apparatus, comprises a transversly corrugated channel through which filter material to be folded can be drawn, the channel being formed by two rows of intermeshing ribs 2 of such dimensions that the material is progressively stretched transversely and folded into corrugations as it passes through the length of the channel. The amplitude of each rib 2, and the distance over the surface of the ribs between the tip of a rib in one row and the tip of a rib next to it in the other row, progressively increase, and the distance between adjacent ribs in each row progressively decreases, from the entrance end of the passage (Fig 3) to its exit end (Fig 4). The corrugated and stretched filter material is passed directly into a bustle to form a tow.
Patent GB-1118126-A (GB)
Title: Sewer augering machine with automatic feed mechanism and interchangeable drum means
Inventor: COONEY LAWRENCE J
IPC: E03F9/00
Filed: 1966-03-24
Abstract: 1,118,126. Sewer cleaning machines; springs GENERAL WIRE SPRING CO. 24 March, 1966, No. 13104/66. Headings F2N and F2S. A storage drum 5 containing a coiled sewer auger 9 having a helically wound armour is detachably supported on a rearwardly retractable frame pivotally secured on the two rearwardly positioned legs 4 of a tripod frame supporting a feed mechanism 19 which, together with the drum is rotated by a motor 26 and at a speed different from that of the drum. The feed mechanism includes control means which engages the armour of the snake to feed the snake along the rotary axis of the drum and into a sewer to be cleaned. Mounted on the legs 4 are wheels 8 which are lifted from the ground when the machine is in operation, and the frame 6 carries a handle 18 mounting a wheel 23 which facilitates movement of the machine upon retraction of the frame to remove the drum 5. The feed mechanism includes guides 63 biased outwardly by conical springs 72 and passing in non-rotatable manner through the throat 43 to engage the armour of the snake, the guides being adjustable towards or away from the axis of the mechanism by a follower 55 having an internal conical surface 61 and adjusted axially of the throat by a cam plate 51 rotated by a handle 53.
Patent GB-1018421-A (GB)
Title: Improvements in and relating to a bridge network for controlling heaters and like transducers
Inventor: WILLIAMSON ROY FRANK
IPC: G05D23/24
Filed: 1962-04-05
Abstract: 1,018,421. Automatic temperature control. A. C. COSSOR Ltd. July 5, 1963 [April 5, 1962], No. 13170/62. Heading G3R. Control apparatus for a plurality of transducers such as heating devices 11 each comprising a fixed heater 12 and a heater 12 capable of being switched into and out of circuit by a relay 32 operated by an amplifier 19 includes a bridge circuit having a pair of primary arms 15,16 and a plurality of pairs of secondary arms 17, 18, each arm 18 comprising a detector 30 responsive to its associated heater 11 whereby imbalance of each bridge causes operation of the respective relay 32 to control the heating of the devices 11. The devices 11 may be heaters for treating textile yarns the heating of all the devices being simultaneously adjusted by the element 27 and contact 28. The amplifiers 19 may comprise transistors at thermionic valves.
Patent GB-216890-A (GB)
Title: Improvements in machines for sowing grain
IPC: A01C7/04
Filed: 1924-05-29
Abstract: 216,890. Poleschensky, R. May 30, 1923, [Convention date]. Seed drills.-A machine for depositing seed grains singly comprises scooping and gripping members mounted on a rotary disc and having automatic opening and closing motions. Each scooping-member 2 is fixed to the disc 1 and is provided with a dished end 3 capable of holding one grain only. The gripping-members 7 are pivoted on the members 2 and are normally pressed against the dished end by springs. They are opened periodically by engagement with a cam 8. Each closes on a seed in the container 17 as it leaves the cam, and carries it round until it strikes the cam again and drops the seed through a funnel 10 into the furrow. The disc is driven by gearing from a shaft 12 rotated at a variable speed. The sowing-apparatus may be pivotally mounted on the frame 18 so as to trail on the ground. It may be lifted by a lever 13 which coacts with another lever for putting the apparatus out of operation.
Patent GB-1495362-A (GB)
Title: Trifluoroethylanilines
IPC: C07C/
Filed: 1975-04-01
Abstract: 1495362 Trifluoroethylanilines PRODUITS CHIMIQUES UGINE KUHLMANN 1 April 1975 [29 March 1974] 13240/75 Heading C2C [Also in Division C4] The invention comprises compounds having the formula in which the nucleus A is unsubstituted or substituted by one or two nitro, amino, C1 to C2 alkyl or C1 to C2 alkoxy groups or chlorine or bromine atoms. In the examples aniline is reacted with 1-chloro-2,2,2-trifluoroethane to form 2-(2,2,2-trifluoroethyl)aniline which is reacted with acetic anhydride in glacial acetic acid to form 2-(2,2,2-trifluoroethyl) acetanilide which is nitrated with nitric acid to form 4- nitro-2-(2,2,2-trifluoroethyl)acetanilide which is hydrolysed to form 4-nitro-2-(2,2,2-trifluoroethyl)aniline; and 2-trifluoroethylacetanilide is brominated to form 2-(2,2,2-trifluoroethyl)-4- bromoacetanilide which is hydrolysed to form 2-(2,2,2-trifluoroethyl)-4-bromoaniline.
Patent GB-372939-A (GB)
Title: Improvements relating to cabinets or the like
IPC: A47B51/00
Filed: 1931-05-05
Abstract: 372,939. Cabinets. BETJEMANN & SONS, Ltd., G. and ANDREW, H. V., 36, Pentonville Road, London. May 5, 1931, No. 13247. [Class 52 (i).] In a cabinet of the kind with an internal shelf or tray movable vertically to an exposed position leaves or flaps which form the top of the cabinet are opened by the upward movement of the shelf, and are closed, after releasing a catch, by the descent of the shelf under its own weight ; preferably a dashpot checks its downward movements. The Figure shows a cabinet 1 consisting of a hollow box-like casing with a tray or shelf 2 adapted to be raised to the top of the casing. The shelf 2 is secured to the lower end of a cylinder 4, at-the upper end of which is a handle 5 for raising it. When the shelf 2 reaches the top of the cylinder 4, a spring catch -17 snaps under the edge of a recess in the skirting 3, and retains it. On withdrawing the catch the cylinder 4 falls, moving down over a cup leather piston 6 on the upper end of a rod 7 ; air escapes by an adjustable vent 8, and past the skirting 3 of the tray 2. As the shelf 2 falls, links 12 pull inwards the sliding covers 11. An air inlet valve 10 is fitted at the base of the cylinder 1.
Patent GB-1187760-A (GB)
Title: Phase-Shifting Arrangement
Inventor: EARP CHARLES WILLIAM
IPC: H01P1/185
Filed: 1969-03-13
Abstract: 1,187,760. Phase shifters. STANDARD TELEPHONES & CABLES Ltd. 13 March, 1969, No. 13249/69. Heading H1W. A phase-shifting arrangement comprises an input terminal 2 and an arcuate transmission line 3 connected thereto at equally spaced points 4 by n#3 switchable radial feeds 5, the spacing between the end points being equal to (n-1)/n times the transmission line wavelength at the input frequency, and means 7 for cyclically and successively switching the radial feeds. One output (A) advances continuously in phase by digital steps whilst the other output (B) is retarded by similar steps. The two outputs represent upper and lower digital side bands. Each feed 5 may comprise a switching diode and a capacitor in series, the switching pulse being applied through a resistor or choke to a point between the diode and the capacitor. If the line 3 is a strip line, the capacitor may take the form of a segmental arcuate strip overlying and dielectrically spaced from the arcuate strip line. In a modification, each feed is provided with a pair of back-to-back diodes and the switching pulse is applied between them. The outputs A, B may be connected across the diagonal of a bridge comprising three #/4 lines and a 3#/4 line. Double sidebands may be derived at the other diagonal terminals.
Patent GB-747064-A (GB)
Title: Improved multiple passage tube and method of making same
IPC: F28D7/08
Filed: 1954-05-07
Abstract: 747,064. Making multiple bore pipes for heat-exchangers. GENERAL MOTORS CORPORATION. May 7, 1954 [May 21, 1953], No. 13329/54. Classes 83 (2) and 83 (4). [Also in Group XXVIII] A method of manufacturing a multiple bore tube for heat exchangers comprises introducing stop-weld material in longitudinal stripes on each side of the middle sheet of three superposed strips or sheets of metal, the stripes on opposite sides of the middle sheet being offset relative to one another, pressure welding the sheets by rolling and thereafter introducing pressure fluid between the sheets in the zones of the stop-weld material to separate the sheets and form the tube passages. Three aluminium strips 10, 11 and 12 are superposed and a stopweld material 14 consisting of a water suspension of colloidal graphite, ground oyster shells and sodium silicate is applied as shown in Fig. 1 to both sides of the middle strip 11. Adjacent the narrow neck portions of the stopweld material a marking spot 16 of the same material is applied at one edge of the strip. The strips are hot rolled to weld the uncoated portions together after which the single strip is further hot or cold rolled to the desired length and thickness and annealed. The strip is then cut at the spots 16 and each length bent into serpentine shape. Inlet and outlet tubes are inserted in the ends of each length of bent strip which is placed in the recess 30 of a die 32, Fig. 6, and held in position by a plate 35. Fluid pressure is introduced into the zones of stop-weld material to form the internal passages as shown in Fig. 7. External pins may be secured to the flat side walls of the formed tube which may also be made from copper or bonze. The strips may be of unequal thickness and the stop-weld material can be applied by rolling, spraying, painting or printing to both sides of the middle strip or to the inner surfaces of the outer strips.
Patent GB-1197817-A (GB)
Title: Detergent Bar.
Inventor: CHENG WAI MING
IPC: C11D3/48
Filed: 1968-03-19
Abstract: 1,197,817. Anti-bacterial detergent bar. UNILEVER Ltd. 17 March, 1969 [19 March, 1968], No. 13345/68. Heading C5D. A detergent bar contains a synergistic mixture of the antibacterial compounds 4,2<SP>1</SP>,4<SP>1</SP>-trichloro- 2-hydroxydiphenylether, 3,4,4<SP>1 </SP>- trichlorocarbanilide and 4,4<SP>1</SP>-dichloro-3-trifluoromethylcarbanilide. The bar contains 0À5 to 5% of the mixture which contains at least 10% wt. of each of the three compounds. The bar is preferably a soap bar containing 2% coconut fatty acid. Specification 1,175,408 is referred to.
Patent GB-1507662-A (GB)
Title: System of positive identification
IPC: A61C19/00
Filed: 1974-03-26
Abstract: 1507662 Identifying bodies P L SAMIS 11 March 1975 [26 March 1974] 13353/74 Heading B8F In order to identify the body of a human or animal, e.g. post-mortem, identifying intelligence is placed on a radiographically detectable carrier which is then embedded in a cavity in a highly mineralized portion of the body, so that the carrier is protected against heat and impact. The carrier 10 may be embedded in a mandible or, as in the Figure, in a tooth 26, being buried at the bottom of a cavity 28 formed and filled in the course of normal dental treatment. To facilitate detecting the presence of a carrier in the course of dental X-rays post-mortem, a stainless steel pin 34 having a distinctively shaped end so as to distinguish it from other dental implants is inserted in an adjacent specially made cavity 38, which may be made slightly smaller than the pin, or slightly larger and filled with cement. The carrier may be made of ceramic or porcelain material, or a length of metallic ribbon, e.g. stainless steel, tantalum, gold, silver, or alloys thereof. In a preferred embodiment of carrier, a gold layer is vacuum deposited on a wafer substrate of BeO or Al 2 O 3 , with or without an intermediate vacuum deposited layer of NiCr steel. A sheet of 100 identifications arranged 10 x 10 is photographically reduced, and used to prepare a mask by which the identifications are etched into the gold layer by aqua regia. The resulting wafer is then scored by laser beam, and broken into 100 individual carriers each 1À5 mm. square and 0À6 mm. thick. The carrier may have a radiographically detectable shape, and its reverse side may be colour coded so that during re-excavation of the cavity to retrieve the carrier for visual read-out of the identification, the operator is aware upon reaching the carrier and will not damage it. If the carrier is flush with the surface of a tooth or bone, it is coated, e.g. with a transparent shellac resin.
Patent GB-133659-A (GB)
IPC: F16B39/02
Abstract: 133,659. Margetts, F. W. Aug. 14, 1919. Locking nuts. - Holes are formed in a nut at an angle of 45 degrees to the axis to receive a punch or like tool by which the thread is indented on to the thread of the bolt. The holes A<3> may open at the top or sides of the nut, or, as shown, at the shoulder A<2>.
Patent GB-582640-A (GB)
Title: Improvements in connecting devices or hitches for motor or other power vehicles
IPC: B60D1/02
Filed: 1944-07-13
Abstract: 582,640. Releasable fastenings ; shackles. DANIELS, A. July 13, 1944, No. 13396. [Classes 24 and 44] [Also in Group XXXII] A connecting device, particularly a vehicle coupling (see Group XXXII), comprises a body part a formed with bevelled jaws c for the reception of an eye-bolt d, the connection being effected by a slidable plunger i, j which is urged into engagement with the eye-bolt and jaws by a spring k. The head m of the plunger is fitted with two pins n, which, in the engaged position, are housed in complementary holes n' in a cylindrical member e attached to the body part. To release the connection, the head m is pulled up and rotated so that the pins n rest on the top of the member e. Specification 455,050 is referred to.