baber/WOPTO huggingface dataset:
Patent GB-582893-A (GB)
Title: Improvements in switching arrangements for electric vehicles
IPC: H01H9/42
Filed: 1944-02-07
Abstract: 582,893. Retractive switches. TATTERSALL, T. W. Feb. 7, 1944, No. 2257. [Class 38 (v)] A two-speed switch intended for light electric vehicles in which a bar 1 carrying insulated contact discs 3, 14, slides through a hole in framework 13 on which are mounted two fixed contacts 7, 8. A circuit through motor 18, battery 17 and resistance 16 is closed when the driver operates a lever (not shown) which, through a bowden wire 2 moves bar 1 against spring 6 and carries contact 3 to bridge contacts 7, 8. Further movement carries contact 14 against spring 15 to touch contact 3 and thereby short circuit resistance 16. Spring 12 takes up extra movement of the bar. In Fig. 3, 8', 8" are each one of a pair of contacts mounted on an insulating base 13<1>. The pairs are bridged by moving contacts 3' and 14<1> when insulating block 19 moves against spring 12 on bar 1 being pulled. Contact 3' bridges its pair of fixed contacts first and completes a circuit including a resistance, and then contact 14<1> bridges its pair and short-circuits the resistance, compression of spring 24 allowing the further movement needed. A combined twospeed and reversing switch is described in which two further fixed and one further moving contacts are provided, block 19 can rotate through 90‹ relative to block 13, contacts 3<1>, 14' bridge fixed contacts simultaneously and one of them is then connected by the extra moving contact to one of the extra fixed contacts to short-circuit the resistance; Figs. 5, 6 (not shown).
Patent GB-174625-A (GB)
Title: Method of manufacturing yeast
IPC: C12N1/16
Filed: 1922-01-26
Abstract: 174,625. Moskovits, N. Dec. 5, 1913, [Convention date]. Yeast.-Nitrogen for the growth of yeast is supplied in the form of ammonium salts, or salts of amides or amines, such as acetyl, methylamine and lactyl methylamine, the solution being very slightly acid. The yeast is aerated during cultivation. A suitable solution contains sugar and ammonium lactate, with sufficient lactic acid to neutralize not more than 0.3 c.c. normal soda solution per 20 c.c. of filtered culture medium.
Patent GB-1180739-A (GB)
Title: Improvements in or relating to Desalination
Inventor: MARTINDALE ALLAN
IPC: C02F1/22
Filed: 1967-01-17
Abstract: 1,180,739. Desalination of water. SIMONCARVES Ltd. 9 Jan., 1968 [17 Jan., 1967]. No. 2348/67. Heading B1B. In a process for the desalination of saline water by boiling in it a volatile immiscible liquid refrigerant, such as butane, whereby ice crystals are formed, separating the ice crystals from the saline water, and melting the ice to obtain desalinated water, small quantities of dissolved and suspended butane are removed from both the desalinated and saline water by passing the separate streams down a tower 26, (Fig. 1) divided into superposed compartments 238, 240, 242 (Fig. 13) by liquid-seal devices 244, 246, each compartment being packed with rings and maintained at a higher vacuum than the preceding one by pumps 35, 37, 39 which remove vaporized butane from the compartments. Tower 26 is divided by a vertical partition 256 into two flow paths so that saline and desalinated water can be treated separately; the two streams being introduced through spray devices 248, 250, respectively. Holes 265 are provided in the partition 256 to equalize the pressure on either side of it. Residual butane is removed from the desalinated water by spraying it down packed tower 272 against a counter-current stream of air supplied by fan 278. The plant shown also comprises freezer 12, melter 14, and a condenser 24 where butane vapour is condensed by direct contact with water. Condenser 24 (Fig. 9) has a vertical partition 202 and is divided into upper and lower compartments by bubble cap tray 204. The compartments contain packings 198, 200, 206, 207. Butane vapour enters the condenser through inlets 224, 226; and saline water is sprayed into it through device 194, while desalinated water is sprayed in through device 196. The liquid butane and water form two layers in compartment 192 on both sides of partition 202. Liquid butane leaves the condenser through outlets 228, 230.
Patent GB-852872-A (GB)
Title: Improvements in trawls or like fishing nets
IPC: A01K75/04
Filed: 1957-04-17
Abstract: 852,872. Trawl nets. GROUSELLE, Y. April 17, 1957 [May 31; 1956], No. 2376/60. Divided out of 851,832. Class 48 A board p for lifting the headrope c of a trawl is combined with a float f which is attached to the headrope c at points located in a plane perpendicular to the board and intersecting the board at one third of its length from the leading edge. The float may be spherical or elongated and is connected to the board by casting or welding and by brackets d, e, The trailing edge of the board is laced to the trawl.
Patent GB-1045096-A (GB)
Title: Improved fuel injection internal combustion engine
IPC: F02B3/06
Filed: 1965-01-20
Abstract: 1,045,096. I.C. engine combustion chambers; cooling. MOTORENFABRIK HATZ, G.m.b.H. Jan. 20, 1965 [Jan. 29, 1964], No. 2404/65. In an air-cooled fuel injection I.C. engine having a light-metal cylinder head 1, Fig. 1, part of a swirl chamber 9 is formed by a cupform insert body 15, made of a very low heat conductivity material, having an inclined outlet 15a of arcuate cross-section. In a modification the insert is formed to engage with the cylinder block thereby preventing rotation. Cooling Vertical cooling fins 10, Fig. 3 (not shown) are joined to a surrounding jacket 11 to define vertical axial channels which open into corresponding axial channels in the cylinder block 2. An additional transverse channel 12 having two entrances 12a, 12b is divided by a longitudinal rib 14 and opens into the vertical axial ducts of the cylinder.
Patent GB-661200-A (GB)
Title: Improvements in or relating to motor-control systems
IPC: G05D3/12
Filed: 1949-01-28
Abstract: 661,200. Control of motors. SPERRY CORPORATION. Jan. 28, 1949. [Jan. 29, 1948] No. 242449. Class 38 (iii). [Also in Group XXXV] In a motor control system, the motor has two windings, one of which is continuously excited and controlled by an impedance that is varied by the excitation current of the other winding of the motor so that under conditions of zero excitation the power dissipation in the first winding is reduced. As applied to an automatic pilot (Fig. 1) a displacement signal is fed through a phase sensitive amplifier 13 to differential field windings 14 of a D.C. motor 15. The motor which positions a control surface 27, has an armature 19 fed from a rectifier 21, the rectifier being from an A.C. fed source 24 via inductances 22, 23. As shown in Fig. 2 these inductances may be mounted on the stator core 16 of the motor itself and are such that when current is supplied to the field windings 14 a unidirectional flux is set up in the core of the motor which causes the impedance of the inductances to decrease, thus allowing increased armature current under operating conditions. If desired, separate saturable sections may be provided distinct from the motor Fig. 5 (not shown). In a further embodiment Fig. 3 (not shown) the motor drives a generator, the energisation of which is also controlled by the field excitation current of the motor, the generator output being fed to a winding opposing the motor field windings to prevent hunting of the system. As applied to an A.C. motor Fig. 6 (not shown) the output of the amplifier controls an A.C. bridge feeding the field of the motor as well as the impedance of the inductances in the armature circuit. Fig. 7 has the invention applied to a two phase A.C. motor 60 having a differential winding 62 connected to the amplifier and constantly excited winding 61, the par dissipation in which, under conditions of zero excitation, is reduced by the reactor combination 66, 67.
Patent GB-1240093-A (GB)
Title: Vulcanizable compositions
IPC: C08L27/00
Filed: 1970-01-19
Abstract: 1,240,093. Curing liquid polymers of conjugated dienes. POLYMER CORP. Ltd. 19 Jan., 1970 [10 Feb., 1969], No. 2442/70. Heading C3P. A vulcanizable composition comprises a mixture of (1) a polymer of C 4 -C 8  conjugated diolefin, said polymer containing polymeric molecules with more than one allylic halide group, the halogen being selected from chlorine, bromine and iodine, (2) a polyalkylene imine having a molecular weight of at least 250 and more than five amine groups per molecule, and (3) 20 to 400 parts per 100 parts of polymer of a plasticizer therefor. Materials (1) may be allyl bromide terminated polybutadiene, (2) may be polyethylene imine, and (3) may be coal tar, asphalt, oil, or a polychlorinated polyphenyl. The composition may also contain fillers, pigments &c., e.g. black, lead carbonate, calcium carbonate, low density polyethylene, titanium dioxide, nickel dibutyl dithiocarbamate (antiozonant), peppermint oil or a dye. Water retards the curing reaction. The composition may be used for dental impressions.
Patent GB-1106776-A (GB)
Title: Damping device for an aerial target towing system
Inventor: BUSCH HEINZ
IPC: B64D5/00
Filed: 1966-01-19
Abstract: 1,106,776. Towed targets. DORNIER SYSTEM G.m.b.H. 19 Jan., 1966 [10 March, 1965], No. 2480/66. Heading B7W. [Also in Division F2] A target intended to be towed by an aircraft is connected to the towing cable by a coil spring provided with means for damping the rebound of the spring, e.g. after the cable becomes taut on initial deployment of the target. The spring may be so constructed as to deform plastically when subjected to the shock loads normally sustained, or the rebound may be prevented by a conical washer 8 on a body 5 connected to the spring 6. The washer engaging the walls of a sleeve 4 through which the towing cable passes, and allowing movement in one direction only. Alternatively, the body (5) may be grooved (at 9, Fig. 3, not shown) or part conical, to receive balls (10) which jam against the wall (4) to prevent movement to contract the spring. The conical washer or the wall may be constructed to allow the spring to contract, but with friction damping. The spring is located at the rear of the target, the towing cable extending through the sleeve (4) and tube (2) through a front portion of the target which may contain e.g. radar reflectors and a hit indicator.
Patent GB-1327348-A (GB)
Title: High voltage connector
IPC: H01R13/53
Filed: 1972-01-19
Abstract: 1327348 Two-part couplings AMP Inc 19 Jan 1972 [4 Feb 1971] 2506/72 Heading H2E Before a high voltage plug is mated with a live socket 136 the male contact 18 is pushed into a sleeve 32 against the resistance of a coil spring 42. It is automatically locked in position by a plunger 72 which is urged by a leaf spring 68 into a hole 44 in the contact. When the connectors are mated the end 138 of the socket pushes on a trigger 84, causing it to slide against the resistance of a coil spring (80, Fig. 7, not shown). A ramp at the end of the trigger 84 slides over shoulders (74) on the plunger 72 and forces the plunger downwards. The male contact 18 is thus released, and is urged forward by the spring 42 to mate with the contact in the socket very rapidly, thus minimizing arcing. Any gases produced by arcing pass through a vent 24 and a hole 26 to a passageway 20. The contact comprises an arc-extinguishing insulating tip 28 and a mating part 22 screwed on to the hollow part. A flexible conductor 104 is welded at one end to a key 30 brazed on to the male contact, and at the other end to a connector 110 crimped to a cable core 105. The key 30 slides in a slot 36 in the sleeve 32 and stops against the end of the slot to prevent removal of the contact. When the contact 18 moves forward to the mating position leaf springs 58 (Fig. 6), attached to slightly outwardly flared fingers 54 on the sleeve 32, easily bend outwards to allow a shoulder 64 on the contact to pass, but the ends 62 of the springs rest over the ends 56 of the fingers in such a way that a large force is needed to move the shoulder past when the contact is pushed back into the sleeve. The contact 18 and the sliding trigger 84 are guided in holes in a dielectric cap 98 which is fixed at one end of the sleeve 32 and supports this end in a housing 116, 118, A plate 46 fits in the housing and is fixed to a plug 45 in the other end of the sleeve 32 by a screw 50 which also supports the coil spring 42. The housing is covered by a moulding 119, 128 of resilient insulating material, which in turn is covered by a conductive shield 134. The socket 136 fits in a conical cavity 132 in the moulding, a groove 139 engaging a ridge 133. The plug is manipulated by a "hot stick" which engages a stiff wire loop 14 fixed to a pin 10 which fits in a vertical hole 16 or, as shown, in a horizontal hole (not shown). A plate 124 with a probe 122 serves as a capacitive-divider-type voltage detector, and has a conductive cap 126.
Patent GB-1491361-A (GB)
Title: Single crystals based on stabilised zirconium dioxide or hafnium dioxide
IPC: C30B11/00
Filed: 1975-01-21
Abstract: 1491361 Stabilized ZrO 2  or HfO 2  crystals FIZICHE INST IM PN LEBEDEVA AKAD NAUK SSSR 21 Jan 1975 2507/75 Heading ClA Single crystals based on ZrO 2  or HfO 2  contain as a stabilizer an oxide of Sc or one of elements of atomic number 58-71. The crystals preferably have a ZrO 2 /HfO 2 :stabilizer ratio of 70-95:30-5. The crystals may further contain 0À01-5% of a transition metal oxide or an oxide of a different element of atomic number 58-71 to provide coloration. The crystals are preferably grown from the melt by the Stockbarger method. The crystals may be used as artificial gems, lenses or laser elements.
Patent GB-1173401-A (GB)
Title: Insulated Cable
IPC: C08J7/046
Filed: 1968-01-17
Abstract: 1,173,401. Cables. WESTINGHOUSE ELECTRIC CORP. 17 Jan., 1968 [16 Feb., 1967], No. 2511/68. Heading H1A. A cable comprises a wire 12, an innermost layer 14 of thermoplastic fluorocarbon polymer on the wire, an intermediate layer 16 of a polyimide resin and an outer layer 18 of a thermoplastic fluorocarbon polymer with at least one of the inner and outer layers being fused to form a continuous sheath and either layers 18 and 16, 16 and 14 or both being bonded together by a layer, such as 24, applied to one or both sides of intermediate layer 16. Layers 14 and 18 may be P.T.F.E. or trifluoromonochloroethylene.
Patent GB-649079-A (GB)
Title: Improvements relating to machines for filling and capping bottles and like containers
IPC: B67C7/00
Filed: 1947-10-24
Abstract: 649,079. Filling and capping bottles &c. ENOCK, A. GRAHAM-, and GRAHAMENOCK MANUFACTURING CO., Ltd. Oct. 24, 1947. No. 2527/50. Divided out of 649,036. [Class 125(ii)] A bottle filling and capping machine, of the type incorporating a rotary vacuum filling mechanism and capping mechanism, has a base or support for the filling and capping units comprising a load supporting member having supporting legs, the upper surface of said member being covered by a thin sheet metal covering having a depending skirt of substantial depth adapted to enclose the operative mechanism and gearing for driving shafts extending through apertures in the supporting member for driving or controlling the various units supported on the base. As shown, the base consists of a thick metal plate 1 with supporting feet 2 (not shown) and a thin covering sheet 3 having a depending skirt 4 strengthened by a backing plate 4a supported from plate 1 by brackets 4b. A filling unit 6, a capping unit '7, a cap-making unit 8, (not shown), and bottle feeding and transfer wheels 26 (not shown), 27, and 28 (not shown) are mounted on hollow pedestals bolted to the base from below. Supplemental supporting means for filling unit 6 consists of a bearing 18 carried by a pair of bars 19 connected to two of the feet 2 ; a similar bearing 20 for capping unit 7 is supported by a member 119 suspended from plate 1 by posts 21. The lower part of each foot 2 telescopes into the upper part, and can be screwed up or down for height adjustment.
Patent GB-110098-A (GB)
Title: Improvements in Shuttles of Looms for Weaving.
Inventor: STEAD JOHN CLAYTON
IPC: D03J5/08
Filed: 1917-02-21
Abstract: 110,098. Stead, J. C. Feb. 21, 1917. Shuttles.-A clip A of any ordinary type for the detachable peg B is provided with a pendent hollow cylindrical piece C closed at one end and adapted to slide in the cylindrical bore of a square-sectioned box D, whch is secured in a slot E in the shuttle and has a longitudinal slot I along its upper face. A helical spring F is fitted in the piece C and is confined between its closed end and a stop-pin H passing through the box, a similar pin G limiting the movement of the piece C in the other direction. The spring absorbs the shock on the bobbin J in the direction of the nose of the cop and thus prevents sloughing of the cop. A spring may be fitted at each end of the piece C so that the clip may slide against spring action in both directions.
Patent GB-509326-A (GB)
Title: Improvements in or applicable to spring seats
IPC: A47C23/053
Filed: 1938-01-27
Abstract: 509,326. Metallic springs. MARSHALL, J. E. L. Jan. 27, 1938, No. 2562. [Class 108 (iii)] [Also in Group XIV] The lower turns of upholstery springs have integral diametrical ties C formed as an extension of the end coil and bracing the latter against the pull of the tension springs D by which the coils are interconnected. Specification 478,196, [Group XIV], is referred to.
Patent GB-657199-A (GB)
Title: A mechanical device for playing a game of chance
IPC: A63F5/04
Filed: 1949-01-31
Abstract: 657,199. Chance apparatus. FREEMAN, S. Jan. 31, 1949, No. 2578. Convention date, April 1, 1948. [Class 132 (ii)] Chance apparatus comprises a casing 11 having mounted on a support 12 a stationary disc 16 marked with symbols, an outer rotating member 15 having five pointers 17 and an inner rotating member 18 having four pointers 19 which are numbered. The pointers 19 may be hinged for folding. Fixtures 22 may be provided for advertising matter or merchandise. A tray 23 may be provided in the base of the device.
Patent GB-607148-A (GB)
Title: Improvements in or relating to door and like catches
IPC: E05C19/16
Filed: 1946-01-28
Abstract: 607,148. Magnets. NEILL & CO: (SHEFFIELD), Ltd., J., and EDWARDS, A. Jan. 28; 1946, No. 2662. [Class 35] [Also in Group XXV]  A catch for doors or the like comprises a permanent magnet 10, Fig. 1, cast with a central gap 11 leaving on one side two polar faces 12, 13 spaced well apart, the gap being continued shallower into the adjacent side 14, and with two slots 18 for fixing the door to the frame, and a mild steel keeper 21, Fig. 3, secured at a point intermediate the pole faces to 'a leaf spring 23 attached to the frame or door 26. Alternatively, the magnet, or both magnet and keeper, may be resiliently mounted. A modification is described in which the magnet consists of a member of square cross-section secured between two mild steel polepieces of greater cross-section by a non-magnetic rivet, the polepieces having lugs for securing the magnet in position so that there are three remaining pairs of pole edges exposed, of which any pair may be used to attract the keeper. The keeper may be somewhat longer than the magnet to provide for irregularities. A magnetic alloy of the iron-nickel-aluminium type, with or without other elements such as copper cobalt and titanium should preferably be used, and may be cooled in a magnetic field to render it anisotropic. Instead of being cast, the magnet may be made by moulding, pressing and sintering powdered ingredients.
Patent GB-523878-A (GB)
Title: Improvements relating to the traversible carriages used in rectangular sprinkler installations for treating sewage
IPC: C02F3/04
Filed: 1939-01-26
Abstract: 523,878. Liquid distributers. MILLS & CO. (ENGINEERS), Ltd., J., and BOLTON, J. F. Jan. 26, 1939, No. 2694. [Class 69 (iii)] Travelling carriage apparatus for sprinkling liquids on rectangular beds in which traversing is effected by water wheels the reversal of which is effected at the end of each travel by a weir or valve actuated by contact of a reversing lever mounted in connection with the track. The carriage runs on rails 2, Figs. 1 and 2, mounted' on each side of a feed trough delivering water through a syphon 14 to water wheels 10 which drive traction wheels 3 through chain gearing 25. Water is delivered to weir boxes 12 on either side of a reversible water wheel 10, each of which is provided with a packing strip 16 engaging a movable casing 17, Fig. 5, having on each side a weir 19 so arranged that the casing 17 may be rocked to raise one weir and lower the other to allow water to flow to the water wheel on one side. From the wheel the water escapes into a chamber 9 and thence to the delivery pipes 20, 21. The end plate 18 of the casing 17 is pivotally connected to a rod 31 connected to an arm 32 on a shaft 33 carrying a segment 34 having adjustable abutment studs 35 which may be acted on by the fall of a reversing lever 36 freely pivoted on the shaft 33. This reversing lever 36 at the end of its travel engages an abutment 37 to actuate the segment 34. As soon as the lever 36 passes its said position a rolling weight 38 moves across the lever 36 to effect a quick, movement of the reversing gear. Hydraulic buffers 47, 48 may be provided to minimise shock. A modification is described in which in place of a movable under-casing, weir valves are provided which are simultaneously operated at the end of each travel.
Patent GB-406716-A (GB)
Title: Improvements in or relating to plungers, and packing members therefor, particularly for use in dispensing containers
IPC: B27G11/02
Filed: 1932-08-23
Abstract: 406,716. Fiston apparatus for discharging receptacles. MARR, P. G., Rydens End, Rydens Avenue, Walton-on- Thames. Aug. 23, 1932, No. 2711/34. Divided on 406,693. Drawings to Specification. [Class 102 (ii).] The subject-matter is the same as that of Specification 406,693.
Patent GB-469668-A (GB)
Title: Improvements in and relating to annealing apparatus for drawn glass
IPC: C03B15/18
Filed: 1936-01-29
Abstract: 469,668. Making sheet glass. PILKINGTON BROS., Ltd., and GASKELL, J. Jan. 29, 1936, No. 2754. [Class 56] Relates to the annealing tower, used with drawing-apparatus of the vertical type, through which the glass strip is drawn by pairs of rollers, one roller 4 of each pair being fixed in position while the other roller 8 is pressed towards it by a counterweight 12 to grip the glass. According to the invention, the two rollers of each pair are geared together, some at one end and some at the other, in order that the pressure of the rollers may be more evenly distributed over the glass strip. In the construction shown, every alternate fixed roller 4 has at one end a gear 24 which is driven by a worm wheel 13 on a shaft 14, and the intermediate rollers are also provided with gear wheels 23 which are driven by a shaft similar to the shaft 14, both shafts being driven in unison with one another. The movable rollers 8 are provided at one end with gear wheels 25 or 26 which engage the gear wheels 24, 23 on the fixed rollers, respectively.
Patent GB-1374811-A (GB)
Title: Display or storage apparatus
IPC: A47B57/56
Filed: 1972-03-30
Abstract: 1374811 Brackets VERSATILE FITTINGS (WHS) Ltd and D H PEACOCK 30 March 1972 [20 Jan 1971] 2805/71 Heading A4B A bracket 40, e.g. for supporting a shelf, is cantilevered from an upright 10 including a channel section 11 or 12 having sides 15, 16 provided at their free ends with inward projections 19-21, the bracket 40 having a flange 42 engaged behind a wall 19 of a said projection and being supported on a movable support 25 releasably secured to the upright 10 at any desired position along the length of the latter, the movable support 25 comprising a body portion 26 with legs 20 for engaging the base of the channel 11 or 12 and a strip portion which is movable relative to the body portion 26 by means of a cam member 28 to engage a lip 35a of the strip portion with the inner face of the projection wall 19 thereby to clamp the support 25 on the upright 10.