baber/WOPTO huggingface dataset:
Patent GB-545134-A (GB)
Title: Improvements relating to scarifiers or road breakers
IPC: E01C23/12
Filed: 1941-02-17
Abstract: 545,134. Road scarifiers. AVELING-BARFORD, Ltd., and BRAMBLE, W. H. Feb. 17, 1941, No. 2140. [Class 107] Means is provided for lifting the tines 6 automatically when the resistance to the vehicle 1 causes the driving wheels 3 to slip, and for lowering them when the wheels cease to slip. A friction wheel 7 contacting with the driving wheel and a wheel 8 running on the ground or in contact with a steering wheel drive bevel wheels 18, 19 respectively through chain and sprocket gearing in gear casings 10, 12 articulated at 13, 14. A bevel pinion 22 meshing with the bevel wheels rotates on a shaft 23 at right angles to and fast on a rock shaft 15, so that when the speeds of the friction wheels differ the bevel pinion precesses and rocks the shaft 15. This shaft carries an arm 32 connected through a rod 47 and levers to the stem of a valve 56 controlling a hydraulic ram 71 connected to the scarifier frame. The valve may also be controlled by a pedestrian by a lever 63 and from the driver's seat by a push-pull knob 67. The tines may be lifted by mechanical means such as friction couplings and worm gearing controlled by the bevel pinion. Preferably a small bias in favour of the road friction wheel is provided, in order that the tines shall not remain raised for an unnecessarily long period.
Patent GB-893909-A (GB)
Title: Improvements in or relating to processes for decolouring natural fur skins
Inventor: RICHARDSON GEORGE GARY
IPC: D06L4/00
Filed: 1960-01-20
Abstract: Dressed natural fur skins, e.g. dressed natural Persian lamb skins, are decoloured by immersing them in a bath, maintained at a temperature above 0 DEG C. but below human body temperature, containing formic acid in a concentration of 5%-10% by weight and a solvent for the pigment released from the hair by the formic acid, and then washing the skins to remove the formic acid and solvent therefrom.  The solvent, which is preferably a dioxane with a small proportion of an alcohol, e.g. isopropyl alcohol, may contain a wetting agent, e.g. an ethylene oxide-octyl cresol condensate, and sodium chloride in sufficient quantity to prevent swelling of the skin due to the action of the free acid thereon. The skins are preferably immersed in the bath for 12-48 hours at about 30 DEG C. and may be washed in a bath comprising sodium chloride and sodium sesquicarbonate at 25 DEG C.  The skins may subsequently be dyed.
Patent GB-449409-A (GB)
Title: Improvements in or relating to apparatus for detecting breaks or failures in electric circuits
IPC: B60Q11/00
Filed: 1935-01-23
Abstract: 449,409. Lamp - failure alarms. DAVENALL, E. J., 36, Broadway, Codsall, near Wolverhampton, and BROOKES, J. C. L., Kent Street, Upper Gornal. near Dudley, Worcestershire. Jan. 23, 1935, No. 2158. [Class 118 (ii)] The contacts of a buzzer, which indicates current reduction in a lamp circuit, are shunted as by other lamps, to reduce sparking, the buzzer thus sounding when any one of a group of parallel-connected lamps fails. The invention is described as applied to the rear lamp 20 and side lamps 21 of a vehicle, the buzzer 10 being connected in series with the lamps and the armature 12 in parallel. When normal current flows in the circuit the armature 12 is attracted, but when any of the lamps fails the current flow is insufficient to hold the armature and the buzzer actuates to give an audible alarm, the remaining lamps acting as a shunt to the armature contacts.
Patent GB-562367-A (GB)
Title: Catalysts
IPC: B01J23/648
Filed: 1942-02-18
Abstract: 562,367. Catalysts. BAKER & CO., Inc. Feb. 18, 1942, No. 2185. Convention date, Jan. 28, 1941. [Class 1 (i)] A hydrogenation catalyst comprises a platinum group metal and a vanadium compound in which the valency of vanadium is Jess than 5. The mixture may be prepared as a colloidal solution containing a synthetic organic polymer as protective colloid, as described in Specification 562,366.
Patent GB-1391762-A (GB)
Title: Gas laser
IPC: H01S3/081
Filed: 1973-01-16
Abstract: 1391762 Lasers AVCO CORP 16 Jan 1973 [2 May 1972] 2248/73 Heading H1C The output of a gas laser is obtained by focusing the laser radiation and passing it through two small apertures 42, 43, Fig. 2, in the laser envelope adjacent the focus, laser gas being pumped through the apertures to prevent contamination of the laser by ambient air. The laser shown in Fig. 2 is an amplifier and has mirrors 22, 23, 25, 26 which form a zig-zag path through the discharge region. Mirror 23 focuses the laser beam through aperture 42, and the beam leaves the laser through aperture 43. Gas is supplied to, or exhausted from, pipe 46a at a pressure which prevents air passing through aperture 42. The laser input may be similarly arranged, the radiation to be amplified being focused into the laser by lens 53, or may be passed through a plain window, Fig. 1 (not shown). In Fig. 3 the laser is an oscillator having resonator mirrors 65, 66, the latter having a part 68 which focuses the output through apertures 75, 78 as above. In this embodiment gas is drawn out of the space between the apertures, and vanes 83 are provided to break up the flow of air through the outer aperture. The vanes, and a ball valve which allows the whole of the output region of the envelope to be closed off, are shown in detail in Fig. 5 (not shown). An oscillator having a long tubular structure with a resonator mirror at each end is described, Fig. 7 (not shown). The apertures may have conical faces to reduce spurious modes, Fig. 4 (not shown). In the generator shown in Fig. 6 mirrors 143 and 146 form an unstable resonator, while mirror 145 forms an annular output beam. The use of apertures through which gas is caused to flow is intended to overcome the problems encountered when high power beams are extracted through conventional windows.
Patent GB-344605-A (GB)
Title: Improvements in or relating to the setting-up of tuft-yarn spools as used in looms for weaving carpets and like tufted pile fabrics
IPC: D03D39/06
Filed: 1930-01-23
Abstract: 344,605. Winding tuft yarn spools for looms. TOMKINSONS, Ltd., Church Street, and CARTWRIGHT, G. H., Axborough View, Green Hill, both in Kidderminster, Worcestershire. Jan. 23, 1930, No. 2303. [Class 142 (iv).] To facilitate the " setting up " of tuft yarn spools used in weaving Axminster carpets &c., especially those having sections of the pattern separated in diagonally-disposed order, the spools are wound from bobbins o, shown in plan view in Fig. 2, supported on a creel divided longitudinally into transversely displaceable sections a, b, c, d, and pass through a sley &c. comprising corresponding sections j, k, l, m, which may be disposed, as shown, in continuous alignment and be removably fitted into an elongated box-like holder. The sections a, b, c, d may be transversely slidable in pairs at different levels on runners f on the upper and lower rails g, h of a frame shown diagrammatically in Fig. 3. Thus the two pairs of creel sections may be transversely interchanged, the corresponding sections j, k, l, m carrying the loose ends of yarn being correspondingly interchanged, enabling the threads p to be presented to a second spool in the required transversely interchanged groups. Moreover, the rollers g, r, s associated with the spool m are made with end sections which are removable to permit narrower or wider spools being wound when weaving certain patterns referred to wherein complementary sections of the creel and sley are either removed or reinstated, these spools being engageable respectively by long or short driving chucks t, u fitted interchangeably.
Patent GB-1020698-A (GB)
Title: Improvements in the construction of motor vehicle bumpers
IPC: B60R19/18
Filed: 1965-01-19
Abstract: 1,020,698. Vehicle bumpers. DAIMLERBENZ A.G. Jan. 19, 1965 [Jan. 22, 1964], No. 2325/65. Heading B7J. A motor vehicle bumper of the kind having buffer strips is made in two flanged and spotwelded together portions 12, 13 to form a channel section or tubular member. The portions 19 of the flanges lock into a slot 16 in the strip 15 and hold the strip in tension, and over-riders 11, Figs. 2 and 6 (not shown), each comprising two flanged portions 20 support tensioned buffer stops 22. The parts 20 may be flanged as in Fig. 3 or provided with holes 17 into which are interlocked knobs 18 on the strip 22. This form of interlocking fastening may also be used for the strip 15 in which case the portions 19 of the flanges may be omitted.
Patent GB-227289-A (GB)
Title: Improvements in and relating to devices for killing or disabling insects such as flies
IPC: A01M3/02
Filed: 1924-01-29
Abstract: 227,289. Marks, E. C. R., (United States Manufacturing Corporation). Jan. 29, 1924. Wire handles. - A device for killing or disabling flies &c. consists of a wire-netting or like body 1 with its lower corners 3 folded on lines which converge to a point 11 on a handle consisting of a single piece of wire. The looped central parts of this wire embrace an inserted piece 17, with edges grooved to receive the wire, and the free ends diverge in the folds of the corners 3. The intermediate parts of the wire are connected by gripping- pieces 12, 13, or by twisting them together.
Patent GB-764248-A (GB)
Title: Improvements in or relating to preparation of bis (chloromethyl) oxacyclobutane
Filed: 1955-01-26
Abstract: A process of preparing 3,3-bis-(chloromethyl) oxacyclobutane comprises reacting pentaerythritol trichloride or an ester thereof with an alkali metal hydroxide in a reaction medium consisting of a secondary or tertiary alcohol.  The alcohol may be isopropanol, tert-butanol, 2-butanol, 2-pentanol, 3-pentanol, 2-methyl-2-butanol, or the corresponding secondary and tertiary hexyl and heptyl alcohols.  Esters of pentaerythritol trichloride which may be used are the acetate, propionate and the hydrogen sulphate.  Sodium and potassium hydroxides are used as the alkali metal hydroxide. Examples of the process are given.
Patent GB-420731-A (GB)
Title: Improvements in and relating to epicyclic variable speed gearing
IPC: F16H61/02
Filed: 1934-01-24
Abstract: 420,731. Change-speed and reversing epicyclic gearing. BONN, C. R. H., 56, Gibson Street, Hillhead, Glasgow. Jan. 24, 1934, No. 2441. [Class 80 (ii)] Relates to means for effecting reversed driving in change-speed gearing of the kind comprising aligned driving and driven shafts 2, 3, Fig. 1, and different toothed or friction epicyclic trains adapted to be brought in by braking elements such as 9<1>, 9<2>, alternatively. Upon a carrier frame formed by bolting two discs 13 together and connected to the shaft 3 by webs 14 is supported a first planet gear 7 which meshes with a sun gear 6 fast on the shaft 2 and with an annulus 111 rigid with a brakeable planet carrier 91 of the change-speed gear. Rigid with the gear 7 is a gear 17 interengaging with a gear 18, Fig. 4, revoluble with a stepped gear 19 constantly in mesh with an annulus 11 on a loose brakeable drum 9. Lowest forward speed and reversed driving are effected by braking the drums 91, 9, respectively. In the arrangement shown in Fig. 1, the drums 9, 9<1>, 9<2> &c. are cones adapted to be thrust leftwardly selectively into engagement with a fixed coned casing 1 when pressure fluid is admitted behind the selected drum through one of a series of ports 20. There are a pair of suitable geared selector valves 21 operated by a handle 211.
Patent GB-126753-A (GB)
Title: Improvements appertaining to Automatic Fire Extinguishers.
Inventor: CLARKE HENRY
IPC: A62C37/08
Filed: 1918-02-12
Abstract: 126,753. Clarke, H., and Wallace, J. Feb. 12, 1918. Fusible sprinkler heads are provided with covers a of glass or other non-corrosive material formed in halves united by fusible material and capable of being mounted upon the sprinkler after the sections have been assembled and fixed. Pins a<2> and sockets a<3> are provided to ensure correct registering of the halves. The halves are preferably united by a fusible material which fuses at a lower temperature than that at which the sprinkler head operates. A spring h mounted in the groove b<2> forces the halves apart when the fusible material melts.
Patent GB-1310601-A (GB)
Title: Tape apparatus
IPC: G11B15/68
Filed: 1970-01-19
Abstract: 1310601 Film cartridge changers TELEX CORP 19 Jan 1970 [18 March 1969] 2565/70 Heading G2E [Also in Division G5] A tape or film cartridge changer employing a rotary magazine has a drive source common to indexing means for the magazine, means to shift a cartridge from a storage to an operative position and a rotary tape drive member. The changer is primarily for consecutive access but manual cartridge selection is possible by switch contacts on the magazine indexing means. Magazine; The magazine has generally radial compartments whose side walls have integral detents 46 to retain the cartridges, and is attached to a drive hub 33 by a cam 39, cap 36 and O-ring. Operation; A single motor 49 drives a capstan shaft 53 journalled in swivel bearings 54, 55 allowing it to be engaged either with the tape or a drive wheel 76 by a toggle linkage (30', 34', 66), Figs. 7 and 8, (not shown) controlled by a solenoid (68). The wheel 76 drives via gears 77, 87, 88 and a delay disc 78 a crank 89 connected 91 to a ratcheting device 117 to index the magazine by one cartridge position per crank revolution. The crank 89 also rocks a bell crank 94 coupled by a spring 97 to a mechanism 100 including an arm 105 to displace the magazine detent 46 and lower the cartridge 31 on to a bridge 114. A lug 88' on gear 88 then operates an inter-lock switch 89' to energize the solenoid (68) and engage the capstan 53 with the tape to commence play. The mechanism 100 is spring-loaded 104 to allow the cartridge to be removed from the magazine even when in play. At the end of each track a foil bridges contacts 159 to energize a second solenoid 155 to rotate a cam 138 and track-change the head 146. Manual headpositioning may also be effected via gears 142 rotating a threaded shaft 132 on which the head carriage 131 is mounted. A switch on the cam 138 also provides an illuminated indication of the track in play. When all the tracks have been played, this switch and the foil contacts 159 re-energize the solenoid (68) to initiate a change-cycle.
Patent GB-1180206-A (GB)
Title: Improvements in or relating to Transport Rollers for Recording Tapes
IPC: F16H55/34
Filed: 1969-01-16
Abstract: 1,180,206. Feeding record tapes. SIEMENS A.G. 16 Jan., 1969 [17 Jan., 1968], No. 2578/69. Heading G5R. A tape-drive capstan 1 carries a friction lining 3 having cross-grooves 4 at regular intervals on its outer surface, the width of the grooves being smaller than their distance from one another. The object is to prevent the formation of an air cushion between the capstan and the tape and to reduce the deposition of dirt on the driving surface of the capstan. The capstan is selectively coupled to one or other of two drives rotating continuously in opposite directions.
Patent GB-1130926-A (GB)
Title: Zinc alloy and method of making same
Inventor: KIBLER RONALD ALLEN
IPC: C22C1/02
Filed: 1966-01-20
Abstract: 1,130,926. Making Zn base alloys. BALL BROS. CO. Inc. Jan. 20, 1966, No. 2604/66. Headings C7A and C7D. Zinc base alloys are made by introducing an alloying metal with a melting point higher than the boiling point of Zn (e.g. Zn, Ti, V, Cr, Nb, Mo, Ta, W or U) into a zinc melt dispersing it substantially uniformly therethrough and rapidly cooling the melt. A master alloy may be produced in an induction furnace by the method as above, it may be quenched by pouring through a sieve into water, the dried pellets are then added to a zinc melt which is again rapidly cooled (e. g. in a continuous casting process) to give the final alloy which may contain 0.06-0.5% of the alloying metal and optionally up to 2% of copper. The master alloy preferably contains 0À5-5% of the alloying metal.
Patent GB-879616-A (GB)
Title: Plastic window covering and method of making same
IPC: E06B3/28
Filed: 1960-01-25
Abstract: <PICT:0879616/IV (a)/1> A thermoplastic sheet (e.g. of polyethylene) has integral beads 11, 12 at either side and a coextensive integral additional bead 13 of the same width and thickness as beads 11, 12 so that the bead 13 may be cut or otherwise detached and used to strengthen the non-beaded transverse edges of a length of the sheet used to cover a window aperture or protective porch enclosure or boxes of vegetables, fruits &c.
Patent GB-562995-A (GB)
Title: Improvements relating to funnels
IPC: B67C11/02
Filed: 1943-02-18
Abstract: 562,995. Funnels. WESTWOOD RIM & PATENTS, Ltd., and WESTWOOD, S. C. Feb. 18, 1943, No. 2722. [Class 125 (ii)] [Also in Group I] A filtering funne for petrol &c. com prising two trun cated conical parts a, b are secured together by rolling a flange c into a groove d, a perfor ated or wover metal filter f being arranged in the joint. A ring g and spout h may be provided.
Patent GB-909252-A (GB)
Title: Improvements in the manufacture of lawn mower cutter reels
IPC: A01D34/53
Filed: 1958-01-27
Abstract: 909,252. Making lawn mowers; brazing. RANSOMES SIMS & JEFFERIES Ltd., and REVETT, R. H. March 17, 1959 [Jan. 27, 1958], No. 2742/58. Classes 83 (2) and 83 (4). In making a lawn mower cutter reel, spiral cutter collars 1 are assembled on an axle 2 and spiral cutters 3 are fitted into the collars, the assembly is clamped, each joint between the collars and the cutters is encircled or part encircled with a clip 9 of brazing material and the assembly is heated to braze the cutters and collars. The collars 1 may be welded at 8 on to the axle 2 before the spiral cutters 3 are mounted in radial slots 4 and the assembly held together by clamping bands 5 or jigs. If the collars are not welded to the axle, a piece of brazing material is placed over each joint between the collars and axle. Clips 9 of brazing material are placed about the joints between the cutters and collars and the assembly is attached to a hook on a travelling conveyer and is carried through a cyamide salt or neutral salt bath at 930‹ C. The conveyer lifts the assembly to a second bath containing nitrate salt or oil for quenching and tempering. Brazing may be effected in an oven and tempering may be effected in a hot air blast.
Patent GB-306262-A (GB)
Title: Improvements in or relating to apparatus for delivering liquids
IPC: B67D1/00
Filed: 1928-01-28
Abstract: 306,262. Geary, J., and Hill, W. G. Jan. 28, 1928. Splashing, preventing. - A device for reducing the force of a jet of liquid comprises a hollow cylindrical body 4 screwed to the nozzle 7 and having a perforated bottom 5 on which is supported, by a central stem 9, a jet-breaking disc 8. The upper surface of the disc may be convex, as shown, or it may be flat or concave. The disc 8 may be movable towards and away from the nozzle 7 and may be spring controlled. The device is applicable for use with the apparatus described in Specification 298,340, [Class 102 (i). Pumps &c.], for delivering measured quantities of liquid.
Patent GB-864763-A (GB)
Title: A process of preparing aromatic diamines
IPC: C07C209/18
Filed: 1959-01-27
Abstract: A process for preparing aromatic diamines comprises reacting a primary amine with a dihydroxy aromatic compound of the group consisting of hydroquinones, resorcinols and catechols in the presence of a catalyst comprising free iron and free iodine.  The catalyst preferably contains 3-12 parts of iodine per part of iron e.g. in the form of powder or filings, and may be used in the proportion of 3-20 gms. per mole of the phenol.  Several suitable aliphatic and aromatic amines and dihydric phenols are mentioned. An azeotroping agent e.g. xylene may be present during the condensation which is carried out under customary reaction conditions and iron may be removed from the product by treating the product with water soluble salt e.g. sodium carbonate, capable of precipitating iron in the form of an insoluble salt. In examples aniline and hydroquinone are condensed to give N,N1-diphenyl-p-phenylene diamine.
Patent GB-1458014-A (GB)
Title: Apparatus for demonstrating magnetic fields
IPC: G09B23/18
Filed: 1973-01-19
Abstract: 1458014 Educational apparatus J CROOK and I R HARRIS 19 April 1974 [19 Jan 1973] 2926/73 Heading G5G Apparatus for demonstrating magnetic fields comprises a sealed container, e.g. of plastics material, having a transparent portion and filled with a viscous oil, e.g. liquid paraffin, containing ferromagnetic particles such as iron filings. The container may be provided with legs 13. Fig. 1 shows the field displayed when the container is placed over two magnets 16, 17 arranged with unlike poles opposite each other. The container may comprise an annular chamber formed between two co-axial cylinders.
Patent GB-1130161-A (GB)
Title: Improvements relating to automatic control mechanism
Inventor: SEARLE WALTER WILLIAM RALPH
IPC: H01H43/12
Filed: 1965-01-22
Abstract: 1,130,161. Time switches. HOOVER Ltd. 17 Jan., 1966 [22 Jan., 1965], No. 2959/65. Heading H1N. In an automatic control mechanism including a programme cam (20), (Fig. 3, not shown), a stepping mechanism (Fig. 3, not shown), and a timing mechanism, Fig. 2, including a timing cam 44 movable against a return spring 63 to successively actuate timing contacts 70-75 via a cam follower 69, the cam 44 is driven by a gear 43 through a torsion spring 85 which is first strained and then released so that cam 44 actuates its timing contacts with a snap-action at the end of each timed interval. Cam 44 has spaced stop shoulders 101-105 engaged by a fixed pawl 100, and gear 43 has a cam surface (90) with spaced cam rises 91-95 which move the pawl 100 clear of each stop shoulder at the end of each timed interval. A release can (54) rocks a lever (65), (Fig. 1, not shown) to disengage a pinion 42 from the timing gear 43 to allow gear 43, with cam 44, to be returned by spring 63 to its initial position. This position is determined by a spring-urged movable buffer stop (131) which is engageable by a detent 86 of cam 44, which detent passes through an arcuate slot 87 of gear 43 (see also Figs. 8-10, not shown), unless a cam (61) moves the stop (131) clear of the detent.
Patent GB-1178732-A (GB)
Title: Improvements in or relating to Pressure Sensitive Adhesives
Inventor: TURNER STANLEY
IPC: C09J7/38
Filed: 1967-01-19
Abstract: 1,178,732. Coated sheet material. AVERY PRODUCTS CORP. 19 Jan., 1967, No. 2978/67. Heading B2E. [Also in Division C3] A paper or cloth is coated with a pressuresensitive adhesive produced by reacting a polymer or copolymer of vinyl chloride with a larger amount by weight of a polyester formed from a polybasic organic acid free from non- benzenoid unsaturation and a polyhydric alcohol, the polyester being free of product of molecular weight below 1,000; the reaction is effected by mixing the polymer and polyester at 140-220C for 6-30 minutes, preferably in the presence of an ester interchange catalyst which is also a PVC stabiliser, particularly lead and tin compounds. The polyester, subjected to molecular distillation to remove lowboiling material and preferably has a molecular weight of 1,000-4,000 per carboxyl group, and are preferably modified by reaction with an epoxy compound. In the examples the polyesters are prepared from (1) azelaine acid and butylene glycol and modified by reaction with 3,4-epoxy-6-methyl-cyclohexylmethyl-3, 4-epoxy-6-methylcyclohexane carboxylate, (2) as (1) but modified with 1-epoxyethyl-3, 4- expoxycyclohexane, (3) adipic acid, 1,3-butylene glycol and acetic anhydride modified as in (2), (4) as in (3) but modified with epoxidised soy bean fatty acids, (5) sebacic acid, 1,2-propylene glycol and acetic anhydride and modified with a bisphenol A-epichlorhydrin compound. These are reacted with vinyl chloride/ monoethyl maleate/diethyl maleate terpolymer, vinyl chloride/mono-n-butyl maleate copolymer or vinyl chloride/acrylic acid copolymer using an organo-tin stabiliser. The product is extruded through a slit onto a continuously moving paper or cloth web.