baber/WOPTO huggingface dataset:
Patent GB-609690-A (GB)
Title: Improvements in electromagnetic clutches
IPC: H02K49/00
Filed: 1946-03-20
Abstract: 609,690. Electromagnetic clutches; starting prime movers. SAMPIETRO, A. C., and ROBERTSON, D. R. March 20, 1946, No. 8694. [Classes 35 and 38 (iv)] An eddy current clutch has a rotatable field element comprising two annular D.C. excited electromagnets having radial polepieces and disposed on opposite sides of a disc-shaped armature with similar polepieces on each side co-operating with those on the field element so that they sustain flux reversals, the clutch also having a bearing member for locating the members relatively to each other. In one form, the armature which may be plated with copper or silver, or as stated in the Provisional Specification, may carry a squirrel-cage winding, consists of a single disc 23 having teeth or poles 24 which co-operate with similar poles 32, 33, 38, 39 on the C-shaped electromagnets excited by coils 26, 35. The electromagnets are composed of a pair of rings 27, 28 and 36, 37, respectively assembled with a tubular spacer 40 and secured by bolts 41. The electromagnet 25 has a hub 29 which is bolted to the engine crank-shaft 30 and provides a housing for a roller bearing 31 supporting the armature hub 20 which is keyed. at 21 to a shaft 22. The other electromagnet has a hub 42 which carries the slip-ring 47 and in which is secured the locating ball-bearing 43 which is also fixed to the armature hub. Ventilation holes 48, 49 may be provided. The poles 32, 38 whose width is adapted to suit conditions, may be staggered with respect to poles 33, 39 and also may be helically chamfered to increase the synchronous torque in one direction. In a modified form, Figs. 3 and 4 (not shown), the armature comprises a pair of spaced discs secured to the boss and each having radial ribs on the outside to act as poles. The electromagnet cores consist of closely-coiled strip material having radial coils situated in slots. The circuit shown in Fig. 7 enables the clutch to be used as an engine starter. A cam 68 mounted on the armature shaft is arranged to operate contact blades 69A, 69B carried on the electromagnet in such a way that the current supplied from the battery 77 through slip-ring 47 is successively reversed. The armature has permanently magnetic inserts to place it in a favourable starting position and the alternating energization of the field causes it to accelerate rapidly. At a predetermined speed, holding devices 73A, 73B are supplied with enough current from an alternator on the armature shaft to stop the operation of the contact blades so that the clutch can be energized normally or through rectifiers from an alternator to transfer its momentum to the engine.
Patent GB-553404-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/12
Filed: 1939-03-18
Abstract: 553,404. Fluid-pressure servomotor-control systems. WEIR, Ltd., G. & J., and PULLIN, C. G. March 18, 1939, No. 8695. [Class 135] [Also in Group XXXIII] An aircraft having a sustaining rotor system normally driven from a power unit has a variable speed gear in the transmission under the control of a speed governor. The variable speed gear may be of an infinitely variable type or a threespeed or two-speed gear such as the epicyclic gear employed as an overdrive in cars. Fig. 3 shows a part plan of an aircraft having two rotors driven by shafts 30, 31 extending from a gear-box 32, a variable speed gear 18 being provided in the transmission controlled by a lever 26 connected to a piston in a fluid-pressure cylinder controlled by a speed governor 35. A fluid coupling 17 and a fan 20 for delivering cooling air to the motor also are provided. In a modification, a change speed gear-box is provided in each shaft 30, 31 which are driven through a differential gear, both gear-boxes being simultaneously controlled by a speed governor driven from one of the shafts. The speed governor actuates a distribution valve.
Patent GB-905249-A (GB)
Title: Lamp assembly
IPC: F21V15/00
Filed: 1960-03-11
Abstract: 905,249. Lamp shades. SHAW, J. B., and ROBERTS, G. G. March 11, 1960 [March 12, 1959], No. 8697/60. Classes 75 (2) and 75 (4). A lamp assembly comprises a lamp housing of ' insulating material flared towards an open bottom to provide a lamp shade portion 80 and having an upper end wall provided with a drip shield 60 extending radially outwardly therefrom, which is positioned above circumferentially-spaced ventilation apertures 54 disposed around a central axial opening for receiving an electric cable 30, a socket-holder 13 of insulating material secured' to and below the upper end wall and having a periphery spaced radially inwardly from the walls of the lamp housing, a metal lamp socket 11 supported by the socket holder and having its outer wall spaced radially inwardly from the walls of the lamp housing. A metal nipple connects the drip shield 60 and projection 67 with the upper end of the housing and provides a passage for the electric cable, which is secured to recessed terminals in the socket holder. Screws connect the socket holder with a portion of the bottom of the lamp socket and secure ears on the socket holder to projections 46 on the housing. A lamp shade 100 positioned radially outwardly of the lamp housing and extending axially downwardly has a channel at its upper edge and a coil 93 engages in the channel and ribs 90 on the housing and is held in position by a wire 91 engaging notches in the ribs. The attachment provides a ventilation passage between the shade and housing. A wire guard extends below the housing and has upper wires 83, 84 which engage part-way round the rim of the housing. A perforated guard 95 fits within the housing. In an alternative form the socketholder comprises a terminal carrying disc with a bracket secured to the socket. Spacing members at the top of the housing secure the disc. A cap fits over the nipple and secures the drip shield and housing together. The lower shade may have an upturned end which engages a notch in the ribs or the shade may be permanently secured thereto. A further alternative form comprises a hand lamp. The lower shade is dispensed with and the guard flares outwardly towards the bottom and then inwardly to provide a flat bottom with a central opening. The spring metal handle engages the sides of the housing and the ends pass under a locking wire. The lamp may be permanently secured to a ceiling. '
Patent GB-351933-A (GB)
Title: Improvements in or relating to sliding windows
IPC: E06B3/44
Filed: 1930-03-18
Abstract: 351,933. Weather excluders. HERMAN, A., 29, Pankstrasse, Berlin. March 18, 1930, No. 8729. [Class 20 (iii).] A sliding window of the kind which is opened by lowering the sash into a well in the window parapet, and which has a weather - excluding cover ledge secured rotatably to the frame, has means whereby the free edge of the ledge is guided and the ledge e actuated by fixed grooves, or by guide-bars. According to one construction, a hollow metal window frame a, Fig. 1, has a ledge b rotatably secured thereto. The ledge is guided by lateral rollers c which engage in vertical grooves d in the well e. The grooves d have a bent-over portion at the top, which portion is adapted, when the window is raised, to swing the ledge b into its outward operative position. In one modification, the cover ledge f, Fig. 3, is pivoted at g and is adapted to slide into a slot h in the frame a. In the raised position of the window the ledge is pushed outwards by a spring i, and on lowering the sash the lateral walls k of the ledge engage with guide-rods l and the ledge is pressed into the frame. In a further modification, Fig. 5 (not shown), the free edge of the hinged ledge, such as that shown in Fig. 1, is connected by a spring to a bracket secured to the bottom of the frame. On lowering the sash, the ledge engages with the upper edge of the parapet, and is pressed, against the action of the spring, against the face of the frame a. Reference has been directed by the Comptroller to Specification 290,842, [Class 20 (iii), Doors &c.l.
Patent GB-681738-A (GB)
Title: Improvements in or relating to polymethine compounds and to the sensitising of photographic silver halide emulsions therewith
Inventor: KENDALL JOHN DAVID
IPC: C09B23/01
Filed: 1950-04-06
Abstract: Dyes of the general formula <FORM:0681738/IV (c)/1> where R1 and R2 are alkyl or aralkyl groups, R3 is H or an alkyl or aralkyl group, D is the residue or a 5- or 6-membered heterocyclic nitrogen nucleus, and n and x are 0 or 1, are prepared by reacting dyes of the general formula <FORM:0681738/IV (c)/2> wherein R4 is an alkyl or aralkyl group and X is O or S, with a compound of the general formula R3NH2. Ethyl 6-(31-methyl-21 : 31-dihydrobenzthiazolylidene - 21) - 3 - ethylamino - 2 - cyano - 2 : 4 - hexadienoate is prepared by refluxing together ethyl 6-(31-methyl-21 : 31)-dihydrobenzthiazolylidene - 21) - 3 - ethylthio - 2-cyano-2 : 4-hexadienoate, ethyl alcohol, and aqueous methylamine.  Ethyl 6-(31-methyl-21 : 31 - dihydrobenzthiazolylidene - 21) - 3 - methylamino - 2 - cyano - 2 : 4 - hexadienoate, ethyl 4 - (31 - methyl - 21 : 31 - dihydrobenzthiazolylidene - 21) - 3 - ethylamino - 2 - cyano - 2 - butenoate, ethyl 4 - (31 - methyl - 21 : 31 - dihydrobenzthiazolylidene - 21) - 3 - methylamino - 2 - cyano - 2 - butenoate, ethyl 4 - (31 - methyl - 21 : 31-dihydro - 41 : 51 - benzbenzthiazolylidene - 21) - 3 - ethylamino - 2 - cyano - 2 - butenoate, ethyl 4 - (31-methyl - 21 : 31 - dihydro - 41 : 51 - benzbenzthiazolylidene - 21) - 3 - methylamino - 2 - cyano - 2 - butenoate, ethyl 6 - (11 - ethyl - 11 : 21 - dihydroquinolylidene - 21) - 3 - ethylamino - 2 - cyano - 2 : 4 - hexadienoate, ethyl 6 - (11 - ethyl - 11 : 21 - dihydroquinolylidene - 21) - 3 - methylamino - 2 - cyano - 2 : 4 - hexadienoate, ethyl 4 - (11 - methyl - 11 : 21 - dihydroquinolylidene - 21) - 3 - ethyl amino - 2 - cyano - 2 - butenoate, ethyl 4 - (11 - methyl - 11 : 21 - dihydroquinolylidene - 21) - 3 - methylamino - 2 - cyano - 2 - butenoate, ethyl 6 - (11 : 31 : 31 - trimethyl - 11 : 21 - dihydroindolylidene - 21) - 3 - ethylamino - 2 - cyano - 2 : 4 - hexadienoate, ethyl 6 - (31 - methyl - 21 : 31 - dihydrobenzthiazolylidene - 21) - 3 - amino - 2 - cyano - 2 : 4 - hexadienoate, methyl 4 - (3 - methyl - 2 : 3 - dihydrobenzthiazolylidene - 2) - 3 - methylamino - 2 - cyano - 2 - butenoate, and ethyl 4 - (3 - ethyl - 2 : 3 - benzthiazolylidene - 2) - 3 - benzylamino - 2 - cyano-2-butenoate are similarly prepared. Specifications 642,516, 642,517 and 670,998 are referred to.
Patent GB-273400-A (GB)
Title: Improvements in and relating to the coating of confectionery and the like
IPC: A23G3/22
Filed: 1926-03-31
Abstract: 273,400. Baker Perkins, Ltd., Baker, G. R., Epps, J. W., Perks, G. W., and Soc. Anon. des Anciens Etablissements A. Savy, Jeanjean, et Cie. March 31, 1926. Coating confectioners' goods.-Confectionery is coated by depositing thereon a coating-substance, one portion of which, forming the outside of the coating, is in a " grained " or partly crystallized condition, the graining of the outside layer being effected by lowering its temperature. As shown in Fig. 5, the flooding-tank c, jacketed at c<1> for the circulation of a warm tempering-medium, is provided with an outlet c<2> above the coating conveyer h. Adjacent to the outlet c is provided cooling-means c<3> which may be a jacket or one or more pipes containing water or cool air. The outlet is thus heated on one side and cooled on the other, the material issuing having thus a warm or " ungrained " layer y and a cooled or " grained " layer x which latter forms the exterior of the coating. The cooling-means produces a mass of solid coating-material w adjacent to the outlet. In a modification, Fig. 1, the invention is applied to a feeding-device as described in Specification 227,954; the material which has been acted on by the mixers a<1> and the cooling-jacket a<4>, passing over a weir a<3> into a delivery vessel b having a heated jacket b<1> at one side of the outlet. Alternatively, certain of the plates b<2> may be heated. In another modifi. cation, the outlet of the jacketed flooding- vessel leads to a cooled roller which cools one side of the falling stream, or a hot roller and a. cold roller, one on each side of the stream, may be used. The rollers are cleaned by scrapers, mutually inclined to form a funnel. In a further modification, the material issuing from the flooding vessel is cooled on one side by an air blast. The material which passes through the pervious conveyer h is reheated and reconditioned and returned to the vessel c, the reconditioning being effected without " graining " the material. As shown in Fig. 5 this is effected by collecting the material in a warm jacketed trough f from which it passes between heated rollers f<1>, f<2> which may revolve at different speeds. The lumps are thereby liquefied and the rollers are cleaned by scrapers. The material passes to a jacketed trough f<3> from which it is elevated by a worm conveyer f<4> in a jacketed casing f<6> in which it is heated or cooled as desired and from which it is discharged either directly into the flooding vessel c or into a hopper f<7> having exit rollers f<8> jacketed for a warm medium. Scrapers f<9> are provided. The flooding tank is vibrated by the shaker apparatus j, j<1>, or by means described in Specification 227,954. The cores must be sufficiently warm to ensure that solidification progresses from the exterior towards the interior. When several coatings are applied, the method is only used in the final coating.
Patent GB-1450601-A (GB)
Title: Water resistant pigmented metallic acrylic resin lacquer
IPC: C09D5/38
Filed: 1974-02-27
Abstract: 1450601 Metallic acrylic lacquers CIBAGEIGY AG 27 Feb 1974 [28 Feb 1973] 8769/74 Headings C3F C3P and C3R Weather-resistant pigmented lacquers comprise an acrylic resin, a nickel phthalocyanine pigment and aluminium bronze. The acrylic resin may be derived from acrylic acid, acrylic or methacrylic esters, or acrylonitrile, and may be thermosetting or thermoplastic. The compositions may also contain other resins, e.g. melamine resins, cellulose acetate and cellulose acetate/butyrate, and plasticizers, e.g. butyl benzyl phthalate; and may be prepared by mixing the pigments with solvents, adding the binder and further mixing. Examples describe lacquers comprising aluminium pastes, nickel phthalocyanines, solvents and (1-3) thermoplastic acrylic resin, cellulose acetate/butyrate and butyl benzyl phthalate, and (4-8) thermosetting acrylic resins and melamine resin crosslinking agents.
Patent GB-492686-A (GB)
Title: An improved fastening device incorporating a nut
IPC: F16B37/04
Filed: 1937-03-25
Abstract: 492,686. Fastening-devices incorporating nuts. SIMMONDS, O. E., and SIMMONDS DEVELOPMENT CORPORATION, Ltd. March 25, 1937, No. 8803. [Class 89 (i)] A fastening-device comprises a nut non- rotatably housed between a plurality of flanges or lugs upstanding from a plate or like member, the nut being removably secured to the plate against unintentional withdrawal by means which engage one or more of the flanges or lugs. In the form shown in Figs. 1 and 3, a cylindrical nut 3 with a square flange 4 is secured between flanges 2 on a plate 1 by means of a spring clip 5 formed from a single piece of bent wire having projecting parts 6 to extend through holes 7 in the flanges 2, and ends forming finger grips 12. The nut has limited lateral movement relative to the plate and the latter is formed with a hole 8 which is larger than the bore of the nut. The plate 1 may be secured to a structural part by means of apertured ears 11, spot welding, or projections on the underside of the plate. The nut is made self-locking by means of an insert 9 of vulcanized fibre which is retained in position by an inturned edge 10. As shown in Fig. 9, a plurality of nuts 3 may be secured to a single plate 1<1> which may be straight, bent, or curved, and provided with rivet holes 13. The spring clips 42 are shown with projections 43 which extend through closed or open slots 44 in flanges 41 and with upturned ends 46 which extend through open slots 45 in flanges 40. Other forms shown in the Specification include nut-enclosing plates, with resilient arms or lugs to engage openings or recesses in the flanges on the base plate, and with resilient arms for disengaging the nutengaging plates from the flanges. In one form the nut-enclosing plate is hinged to one of the flanges. Specifications 228,505 and 296,636, [both in Class 89 (i)], are referred to in the Provisional Specification.
Patent GB-1166597-A (GB)
Title: A Planar Air Gap Electric Motor
IPC: H02K23/54
Filed: 1968-02-23
Abstract: 1,166,597. Machines with permanent magnets. SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 23 Feb., 1968 [4 March, 1967], No. 8811/68. Heading H2A. In a planar air gap motor the stator comprises an axially magnetized ring in which the direction of magnetization alternates round the ring, and the rotor structure, which includes a winding, has parts located axially on both sides of the stator ring. The stator ring 19 may comprise either a continuous annulus or a plurality of segments and the rotor structure comprises two groups 15, 16 of laminations slotted radially to form rotor pole segments (as best depicted in Figs. 2, 3, not shown), the groups of laminations being joined by a plurality of magnetic cores 17 carrying windings 23. In the embodiment described there are twelve cores 17 and the windings are each looped around three cores to give a four-pole arrangement, each winding being connected to a segment of a disc-shaped commutator 26. The cores 17 are provided with axially extending slots to reduce the flow of eddy currents.
Patent GB-351018-A (GB)
Title: Improvements in or relating to telegraph systems
IPC: H04L12/06
Filed: 1930-03-19
Abstract: 351,018. Type-printing telegraphy; exchange systems. CREED & CO., Ltd., SALMON, R. D., and THOMAS, F. R., Telegraph Works, Croydon. March 19, 1930, No. 8821. [Class 40 (iii).] A calling station can ascertain the identity of a called station by sending a special signal eliciting an automatically-sent return signal. The special signal effects, through the combination discs 22 .. 26 at the called station, selection of a selector-bar 21 which determines the emission of the return signal by releasing (through mechanical means as shown or through electromagnetic means) the detent 16 of a start-stop clutch. The cam 13 thereupon rotates once, rocking the shaft 9 by means of the arm 10, and so causing the pawl 19 to turn the sleeve 6 step by step. At each step, a fresh line of projections 37 is brought to act on the notched combination bars I . . 5 of the local keyboard transmitter. Meanwhile the universal clutch-bar 8, normally actuated by the keys, has been tripped by lever 12. A series of impulse-groups, determined by the projections 37 and representing the successive characters composing the call of the called station, is thus emitted. The keys of the called station may be locked against actuation during emission of the call, the usual keylocking-bar being actuated by a cam which rotates with the cam 13 (Fig. 2, not shown) or by an electromagnet; or the " Who are you ? " key F at the calling station may disable the replyapparatus at that station, its extension 31 disconnecting the bar 32 from the detent 16. In a modification, the detent 16 may be released by an electromagnet which operates on the establishment of a call but is unaffected by messageimpulses.
Patent GB-124114-A (GB)
Title: An Improved Mud-guard for Motor-cars and other Vehicles.
Inventor: MAURER GUSTAVE
IPC: B62D25/18
Filed: 1918-05-29
Abstract: 124,114. Maurer, G., and Buyle, L. May 29, 1918. Mud-guards for motor-vehicles &c of the kind stamped in one sheet of metal and provided with beads at the edges for strengthening purposes, are constructed with the upper face 1 horizontal or substantially horizontal without any angle therein, the two edges being bent downwards into small semicircular beads 2 which are continued by vertical or approximately vertical borders 6. For the front guards the border on the chassis side is bent at its lower edge to form a flange 3 for the attachment of a side-piece 4 connecting the mudguard to the vehicle chassis. As put upon the market, the side-piece has a border 5 equal in width to the greatest distance between a chassis and mud-guard; the excess is then cut off when the side-piece and mud-guard are fitted upon the vehicle.
Patent GB-1367099-A (GB)
Title: Pigments
Inventor: HINLEY J J
IPC: B01J2/00
Filed: 1971-04-07
Abstract: 1367099 TiO2 pellets BRITISH TITAN Ltd 21 March 1972 [7 April 1971] 9036/71 Heading C1N Pellets are produced from TiO2 particles having a coating of one or more hydrous oxides in a total amount of at least 3À5% by wt. of TiO2 The oxides may be of Al, Ti, Ce, Zr and Si, preferably Al and Si in a molar SiO2 : Al2O3 ratio of 1 : 2 to 3 : 1, and are precipitated from hydrolysable compounds. Convention coating processes are described. The coated particles are dried and fluid energy milled, optionally in the presence of triethanolamine, pentaerythritol or trimethylolpropane. The particles may be pelleted by dry bundling to a size of 5-72 BSS mesh, and may be passed through a 5-44 mesh sieve prior to pelleting. The TiO2 may be rutile or anatase and may be produced by the sulphate or chloride process. In the latter case, the TiO2 may also be vapour phase coated with oxide of Al, Si, Zr and Ce.
Patent GB-622818-A (GB)
Title: Improvements in and relating to liquid sprayers
IPC: B05B7/24
Filed: 1945-04-11
Abstract: 622,818. Spraying liquids. VOSE, E. W. April 11, 1945, No. 9055. Convention date, Dec. 7, 1944. [Class 69 (iii)] In liquid spraying apparatus comprising a pipe 25 for injecting liquid under pressure from a tank 10 into the end of a pipe 26 conveying air under pressure, the air pipe 26 is mounted to swivel on the end of the outlet pipe from the tank for the purpose of controlling the direction of spray through a nozzle 48. The form shown comprises a liquid container 10, which can be attached by hook 11 to a harness worn by the operator. A source of low pressure air supply such as a motor-driven blower unit 32 connects by a flexible tube 29 to an air pipe 26. A flexible conduit 46 subjects the liquid in the container to air pressure and another conduit from the bushing 17 leads to a liquid injector tube 25 inserted through a hole in the air tube. 38 is a bushing to decrease the diameter of the air tube before entering the mixing chamber defined between the bevelled face 35 of the injector tube and the end of the bushing 48 forming the spray nozzle. The combination of pressure in the injector tube and diminution of pressure in the restricted air tube ensures the delivery of a steady stream of liquid to meet the air stream in the mixing chamber. 43 is the head of a screw 41 extending through a hole in the wall of the injector tube to break the liquid into small streams. Free swivelling of the pipe 26 is permitted by the threaded ends of the elbow pipe 23 and by the flexible pipes 19, 46, 29.
Patent GB-567850-A (GB)
Title: Improvements relating to plug gauges
IPC: G01B3/26
Filed: 1943-06-07
Abstract: 567,850. Gauges. DELORO SMELTING & REFINING CO., Ltd., and RIDDIHOUGH, M. June 7, 1943, No. 9124. [Class 106 (ii)] A plug gauge comprises a metal core a, a hard metal sleeve b and an intermediate uniting member made from a thermo-setting or thermo - plastic resinous material. The core a mav be made from steel and the sleeve b may be made from the alloy known by the Registered Trade Mark " Stellite." The uniting member, which may be moulded under the action of heat and/or pressure, may be made from the phenolformaldehyde or urea-formaldehyde condensation product known by the Registered Trade Mark " Mouldrite." A thermo-plastio such as the methyl methacrylate polymerisation product known by the Registered Trade Mark " Diakon " may be used as the uniting member. The uniting member may be extended and shaped to serve as a handle d.