baber/WOPTO huggingface dataset:
Patent GB-874748-A (GB)
Title: Improvements relating to the cooling of electric motors
IPC: H02K9/18
Filed: 1958-04-11
Abstract: 874,748. Cooling dynamo-electric machines. LAURENCE, SCOTT & ELECTROMOTORS Ltd., and CRAIG, M. D. April 10, 1959 [April 11, 1958], No. 11670/58. Class 35. An electric motor, e.g. for mining machinery, having a welded casing 1 is surrounded by a high-pressure water jacket 6 arranged so that the weld 2 is not subjected to the water pressure. The motor and jacket are enclosed in a metal box 3 to which both the motor casing and the jacket are welded, either as shown or at both top and bottom, or at the bottom only, i.e. opposite inlet and outlet 8, 9. The jacket has welded baffles 10 to increase the length of the path taken by the water.
Patent GB-220028-A (GB)
Title: Improvements in back pressure valves for the pumps of fire engines
IPC: F16K15/06
Filed: 1923-05-01
Abstract: 220,028. Morris & Sons, Ltd., J., Morris, J., and Morris, F. May 1, 1923. Controlling.-Fire engine turbine pumps are provided with a back pressure valve B in the delivery conduit, held closed by the vacuum during priming, but opened by the flow of water. A hand-operated control valve may be added, such as a slide valve D worked by rack and pinion gear.
Patent GB-551949-A (GB)
Title: Improvements in and relating to electric phase converting motors
IPC: H01F30/14
Filed: 1941-09-15
Abstract: 551,949. Rotary converters. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. Sept. 15, 1941, No. 11759. [Class 35] Single-phase is converted into three-phase current by a capacitor type squirrel cage induction motor having a three-phase stator winding of which two legs 3, 4 are connected to the single phase supply 1; 2 when running to provide a main winding and the third leg 5 which may have the same or a different number of turns from each of the other two forms the auxiliary winding and is connected to the third line 9 of the three-phase supply, the other two lines 10, 11 of which are connected to the single-phase supply. Figs. 5 and 6 show starting and running connections respectively. A transformer winding 6 co-phasial with the single-phase supply may be connected in series' with one leg 4 during starting. The capacitors , 7, 8 are connected in parallel for starting and in series for running: An additional winding 12 may be connected in series with auxiliary winding 5 to ensure optimum voltage conditions for the capacitors; the third line is connected to the junction of 5 and 12 in this case. Similar windings 13, 14 may be added to windings 3 and and the three-phase lines are then connected to the outer ends, as shown in Fig. 6, so as to give an increase in output voltage by auto-transformer action. Winding t4 may replace transformer winding 6. Specification 535,715 is referred to
Patent GB-874348-A (GB)
Title: Improvements in or relating to acoustic equipment
IPC: H04R1/08
Filed: 1959-04-07
Abstract: 874,348. Microphones. MITCHELL ENGINEERING Ltd., and WOLFE-CURRY, L. L. April 21, 1960 [April 7, 1959], No. 11780/59. Class 40 (4). Streams of gas are blown across the mouth of a microphone 10 or the like to reduce the ingress of dust. As shown, compressed-air is supplied through a pipe 16 to an annular manifold 11 surrounding the mouth of microphone 10 and having inwardlydirected radial orifices 14 and a frusto-conical outlet 18. The microphone is intended for use in acoustic control equipment for industrial plant such as a pulverizing mill.
Patent GB-241116-A (GB)
Title: Improvements in containers for dehydrating pads for use in connection with receptacles for food-stuffs, or the like
IPC: B65D51/30
Filed: 1925-05-09
Abstract: 241,116. Frenkel, G. May 9, 1925. Internal fittings.- In a jar or other receptacle in which the lid is provided with a container for an hygroscopic pad, the container is formed with a central aperture 4, Fig. II adapted to be wholly or partly covered by a shutter 5 adjustably mounted on the upwardly arched centre portion of a spring 6 which is secured to the container at the points 7 and has a length greater than the diameter of the jar so that its ends are bent upwards to straighten the central portion and, within variable limits, to draw the shutter 5 away from the aperture 4 when the lid is applied to the jar. The shutter 5 is mounted between two threaded discs 9, 10 on a screw 8 secured to the spring 6 but its distance from the container may be regulated by forming serrations or undulations on the ends 6b, Fig. IV, of the spring and providing them with corresponding adjusting members 6<c>. Projections 11 on the shutter 5 may be provided to prevent it from closing entirely the aperture 4.
Patent GB-437028-A (GB)
Title: An improved method and means for the transmission of electric signals
IPC: H04R3/12
Filed: 1934-04-23
Abstract: 437,028. Substation circuits. RIMMINGTON, F., 14, Norbury Avenue, Thornton Heath, and GRANTHAM, A. W., 39, Ruskin Road, Carshalton, both in Surrey. April 23, 1934, No. 12164. [Class 40 (iv)] Signal currents from a speaker's microphone 1 or gramophone pick-up at an office or institution are fed through separate secondary windings 7<1> ... 7<3> of the output transformer of an amplifier 4 to a number of listeners over a corresponding number of exchange lines 15. Each line 15 is provided with a local-operator's three-position key 10 by which the line may be connected to a calling relay 12, the operator's head-set 16 ... 18, and the appropriate secondary winding 7<1>, respectively. A further key 19 connects the operator's head-set alternatively to the keys 10 and to an additional (monitoring) secondary winding 7. Relays 13 connected in series with windings 7<1> control clearing signals 13<1>. For use with a large number of lines, a cascade arrangement of transformers may be used, each secondary winding of the output transformer 6 being connected to the primary of a further transformer which itself has a plurality of separate secondaries.
Patent GB-201623-A (GB)
Title: A process and apparatus for forming articles of comminuted cork
IPC: B27J5/00
Filed: 1922-05-01
Abstract: 201,623. Bond, W. G. May 1, 1922. Moulding cork; hopper-and-plunger machines; cooling and heating apparatus. - Relates to the manufacture of bottle-sealing discs, gaskets, rods, gun-wads, &c. from comminuted cork mixed with a binder, and consists in forcing successive charges of the material in loose condition into and through a confining tube or chamber, the material being introduced into the tube without raising its temperature, and while under compression therein, traversing a heating and a cooling zone. As shown in Figs. 3 and 4, the material passes from a hopper B to a hopper bottom C, in which is mounted a reciprocating plunger E which forces successive charges of material through a moulding-tube D surrounded by waterjackets K, M for cooling, and an oil jacket L heated by a burner N. The jacket K prevents heating of the material until under compression. In passing from the heating to the cooling zone, the cork is permitted to expand by enlarging the tube. D as indicated at D<1>. Resistance may be imposed longitudinally upon the material by means of a split, coned discharge end P adjusted by a clamping nut! P<1>. Fig. 5 shows a modification for producing apertured articles, the tube D being fitted with a core R tapered at R' and cooled internally by fluid passed through a pipe r. A number of tubes D &c. are arranged side by side in the machine, and, as shown in Fig. 3, two sets of oppositely-disposed tubes and plungers are provided.
Patent GB-960287-A (GB)
Title: Improvements in indoor game apparatus using rolling balls
IPC: A63F7/04
Filed: 1962-03-30
Abstract: 960,287. Games of chance. F. P. AYERS, and G. H. PLUMMER. Jan. 18, 1963 [March 30, 1962], No. 12299/62. Heading A6H. A device for playing a game of chance comprises a sloping playing surface bounded by walls provided with obstacles, and over which balls are rolled, one end of the surface being further provided with an upstanding ledge serving as a lead in to a pocket which is dimensioned to receive a single line of balls, the pocket extending in the longitudinal direction of the playing surface. As particularly described the surface 4 is formed from a plastics material and has humps 5 pressed up therefrom together with projections 6 at the sides thereof to obstruct the passage of the balls over the surface, said balls eventually coming to rest against the ledges 10, 10a, with a predetermined number lying in the pocket 9. In practice, balls of different colours are used and bets laid as to which balls will come to rest in the pocket. The device also comprises a passage 15 for returning the balls to the top end of the surface, a cover 18 which is mainly transparent but may be opaque in the region 18a, and legs 17. The apparatus is biased so that normally the surface slopes downwards towards the pocket 9, but is arranged to be tiltable about the legs 17 in order to return the balls to the top end of the surface. Mention is also made of the possibility of replacing the legs 17 by a roller mounted transversely of the device.
Patent GB-201640-A (GB)
Title: Improvements in apparatus for measuring and feeding plastic substances
IPC: A23G1/20
Filed: 1922-05-03
Abstract: 201,640. Baker, Sons, &. Perkins, Ltd., J., and Prescott, W. E. May 3, 1922. Feeding and measuring; extrusion machines ; stream-cutting machines; delivery. - Chocolate &c. is divided into measured portions for forming bars &c. in a machine comprising one or more pairs of Intermittently operated rollers e, Fig. 3, disposed in a jacketed container b, each pair of rollers having closely intermeshing teeth of large dimensions and both rollers of a pair being given similar intermittent rotational movements. The plastic material is fed on to a conveyer a by the rollers through a die c altenately opened and shut by a perforated slide c<2>. The container b is made in two parts b<1>, b<2> hinged together on a pivot d and locked by a bolt d<1>. The rollers e may be provided with grooves to receive partition plates which thus divide the container into a number of compartments. The various parts of the machine are operated from the main drive shaft g as shown in Fig. 1. The conveyer a, carried on sprockets f, f<1> and tensioning roller f<2>, is advanced intermittently by a pawl g<4> operated through gearing g<10>, g<11>, cam g<1>, and adjustable lever and link g<2>, g<5>. The rollers e are rotated through gearing j - - j<5> operated through the adjustable lever system i<1>, i<2>, i<3> by a crank i on the shaft g<12> which also carries a cam k arranged to reciprocate the slide c<2> through levers k<1>. The material in the container b is agitated by a paddle h operated through a rod h<3> from an arm m on the lever i<2>, while discharge rollers are oscillated by an arm l<2> reciprocated by a crank disc and arm l<3>, l<4>.
Patent GB-705293-A (GB)
Title: Optical objective
IPC: G02B9/12
Filed: 1951-05-29
Abstract: 705,293. Optical objective. BERTELE, L. May 29, 1951 [June 6, 1950], No. 12542/51. Class 97(1) Optical objective having an aperture ratio substantially less than 1:2.2 consists of three airseparated members of which the first and third members are simple positive lenses while the middle member is meniscus and has its more strongly curved surface convex towards the object. This meniscus comprises a positive element L<SP>2</SP> and a negative element L<SP>4</SP> and a positive element L<SP>3</SP> therebetween, lens L<SP>3</SP> having a refractive index lower than that of each of the lenses L<SP>2</SP> and L<SP>4</SP>. The air space l, has the form of a negative lens the more strongly curved surface of which is on the image side and is convex towards the object, and the air space l<SP>2</SP> has an axial-thickness between 0.2 and 0.5 times the focal length f, has its more strongly curved surface convex towards the object and on the object side of the air space. This objective is characterized in that the thickness of the meniscus member L<SP>2</SP>, L<SP>3</SP> and L<SP>4</SP> lies between 0.13f and 0.205f. There may be broken contact between lenses L<SP>2</SP> and L<SP>3</SP>.
Patent GB-1391081-A (GB)
Title: Optically active benzodiazepines
IPC: C07D243/32
Filed: 1972-03-17
Abstract: 1391081 Benzodiazepines CRC COMPAGNIA DI RICERCA CHIMICA SA 17 March 1972 [17 March 1971] 12567/72 Heading C2C 38-Compounds of the general formula (R<SP>1</SP> = H, halogen, NO 2 ; R<SP>2</SP> = H, C 1-4  alkyl; R<SP>3</SP> = C 1-4  alkyl, benzyl, substituted benzyl) are prepared by cyclizing a compound of the formula (A = protecting group) by removing the protecting group. The above compounds are sedatives and tranquillizers, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-183931-A (GB)
Title: An improved bust bodice
IPC: A41C1/06
Filed: 1921-05-02
Abstract: 183,931. Henderson, M. Bland. May 2, 1921. Underbodices. - Relates to a bust bodice or underment shaped to the figure with some parts extensible and other parts practically inextensible. Each front half a is made from a single piece which is of the form shown in Fig. 6, and which is taken in to fit the figure, a dart d, Fig. 1, being made at the breast and the part f being overlapped and stitched. The shoulder part a' is joined to the corresponding part of the back i, Fig. 3 and detachable elastic strips may be used. The back piece has a tuck at i<1> and is cut to join up with wedge shaped pieces j cut on the cross. The parts h under the arms are reinforced by stiffeners and the garment is secured in front by lacing or otherwise and held down by suspenders. Pantaloon garments.-A similar type of garment is described which terminates at the bottom in a bifurcated portion, is used under a bathing costume, and is preferably made of waterproof net with the extremities of the legs drawn in by elastic.
Patent GB-108909-A (GB)
Title: An Improved Machine or Apparatus for Slicing or Shredding Palm-kernels, Nuts and the like.
Inventor: SCHUELER GEORGE RICHARD
IPC: A23N5/00
Filed: 1916-09-06
Abstract: 108,909. Schueler, G. R. Sept. 6, 1916. Roller mills; rasping - apparatu s.-A machine for slicing or shredding nuts, beans, &c. comprises a number of rotary toothed wheels mounted within a ring of knives and arranged to feed the nuts to, and back them up against the knives. In the machine shown, knives D, formed with a knife-edge at the inner end, are mounted in vertical or inclined slots E in a ring C and are secured by clamp-plates F or a ring. The wheels K are secured to spindles J mounted in a sleeve H, which is formed at the level of the wheels with a flange h<1>, embracing the wheels, and with recesses I to receive the nuts. The sleeve is secured to a shaft G rotated by gearing or a pulley W, and gearing is also provided for rotating wheels K. The gearing consists of pinions L, Fig. 1, on the spindles J engaging a pinion m on a loose pulley N driven by a belt from a pulley O provided with a pulley O<1> driven by a belt from a pulley N' on the shaft G. The shaft P of the pulley 0, O<1> is mounted in a frame R which can be turned on a pivot R' to adjust the tension of the belts to give access to the pulleys. The frame is normally secured by a bolt r'. The nuts are fed into a hopper T arranged over the recesses I, and the slices fall into a chamber U provided with a discharge outlet. The sleeve H may be provided with sweep-arms h<2> for discharging the slices.
Patent GB-722508-A (GB)
Title: Improvements relating to polygonal and arched structures for use in mining
IPC: E21D11/24
Filed: 1951-05-30
Abstract: 722,508. Hinges. MOLL, F. W., [trading as MOLL SOHNE MASCHINENFABRIK, F. W.]. May 30, 1951, No. 12729/51. Class 65 (2). [Also in Group X] A mine arch comprises two segments 1, Figs. 3 and 4 connected by a pivot 3, 4 the mating surfaces of which are in the form of a sector of the frustrum of a double cone formed by two coaxial cones with the bases together. There is a resilient insert 5 between the two parts of the pivot. The two parts 3, 4 of the pivot may have different conicity. The pivot part 3 forming the outer cone is in two parts riveted together and between which the web of the arch segment is bolted or it may be in one part and have bent back flanges engaged by a claw on a girder connecting parallel arches. The inner pivot part which may also be in two parts is connected to the corresponding segment by lugs 11 which may be welded in a slot in the inner part. An upper extension 3<SP>1</SP> of the outer pivot-part limits pivoting. A lower extension may also be provided. In further modifications the pivot consists of two similarly constructed halves, Figs. 23, 25 each half comprising a pin 24 and a cavity 25, the pin of one half engaging the cavity in the other, the pins also engage laterally by surfaces 24a. Radial surfaces limiting the pivoting movement may have overlapping projections engaging laterally. Arches are connected by girders which have apertures accommodating the pivots. A girder Fig. 45 (not shown) crossing above the joint may have a downward extension carrying a disc which is clamped between the faces 24a, Fig. 23. Where two girders abut at a pivot they are joined by a bolt passing through the pivot, the bolt having forked ends secured by wedges to the girders. A modified bolt Fig. 49 comprises two parts 32a, 32b interengaging by inclined surfaces 42 and having a hook for connection with withdrawal means and stages 47. Webs welded between the flanges at the ends of the girders 18b form apertures in which the reduced ends of the bolts are secured by wedges 46. Wooden filler blocks Figs. 38-40 (not shown) may be provided between pivot and the arch segments. The segments may be formed in two parts la, 1b Fig. 3 which telescope under load against the grip of clamps 22, wedges 23 and ribs 56.
Patent GB-831145-A (GB)
Title: Improvements in the production of solid polyethylene
IPC: C08F2/00
Filed: 1956-04-26
Abstract: A catalyst used in the polymerization of ethylene, is formed by mixing a metal with a compound of formula MeXm or MeOnXp, wherein Me is a metal of Group Ib, IIb, IVa, Va, VIa, VIIa or VIII, X is halogen, -CN, -SCN, -OR, -SR or -OCOR (R being a saturated organic radical) and m and n + p are the valencies of the metal.  Metals specified are Li, Na, K, Mg, Ca, Al, Zn, Cd, Sn, Pb, Ti, V, Cr, W, Fe, Cu and mixtures as well as amalgams thereof, and the other catalyst component may be e.g. a compound of Fe, Co (but not cobaltous halide), Ni, Cr, Mo, W, V, Cu, Ag or Hg, but is preferably vanadium tetrachloride or oxytrichloride, chromyl chloride, chromium trichloride, iron trichloride or cupric chloride.  If desired the metal may be activated before use with hydrogen or a halogen (film of metal halide obtained).  Hydrocarbon diluents may be present.  The use of organic halides is specifically excluded.ALSO:Ethylene is polymerized, in the absence of organic halides, using a mixture of a metal with a compound of formula MeXm or MeOnXp, wherein Me is a metal of Group IB, IIB, VA, VIA, VIIA or VIII, X is halogen, -CN, -SCN, -OR, -SR or -OCOR (R being a saturated organic radical) and m and n + p are the valencies of the metal.  Metal components specified are Li, Na, K, Mg, Ca, Al, Zn, Cd, Sn, Pb, Ti, V, Cr, W, Fe, Cu and mixtures thereof, and the other catalyst component may be vanadium tetrachloride or oxytrichloride, chromyl chloride, chromium chloride, iron trichloride or cupric chloride.  The use of cobaltous halide is excluded.  If desired the metal may be activated before use with hydrogen or with a halogen (film of metal halide obtained).  The polymerization may be continuous or with addition of ethylene during the reaction, and may be in bulk or in a hydrocarbon liquid such as xylene, hexane or cyclohexane. Purification may be effected by distillation, if desired with the use of steam or alcohol vapour, followed by extraction with alcohols, methanolic HCl, or aqueous acids or bases.  By varying the catalyst components, products ranging from wax-like to crystalline materials may be obtained.
Patent GB-875491-A (GB)
Title: Machine-tool or measuring machine comprising a visual and photo-electric device for locating the position of a movable member
IPC: B23Q17/22
Filed: 1959-04-16
Abstract: 875,491. Photo-electric measuring. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. April 16, 1959 [April 24, 1958], No. 13007/59. Class 40(3) [Also in Group XXII] In an arrangement allowing precise determination of the position of the work-table 2 of a drilling machine (Fig. 1) an image of a scale 12 (Fig. 2) carried by the table is directed by optical means 14 .... 18 on to a screen 19 (Fig. 4) carried by the frame of the machine and behind which a cursor 21 fixed to a carriage 22 (Figs. 4 and 6) may be traversed by means of a calibrated control knob T so as to bring the cursor into registration with the image of a scale calibration mark as viewed in a mirror 20 (Fig. 4). To ensure that such registration is precise a trace on an oscilloscope (Fig. 8, not shown) is produced from signals generated in a photo-electric cell 24 (fixed to the carriage 22) when part of the image of the scale calibration is oscillated across a narrow slot 26 in front of the cell by means of a mirror 18b driven by an electromechanical device 36 (described in detail in connection with Fig. 7, not shown) supplied with alternating current, the arrangement being such that the (pulse) signals produced by the cell have a uniform spacing only when the registration is precise. These signals are then employed to control one coordinate deflection of the oscilloscope the other of which is produced by means of A.C. of the same frequency as that which supplies the mechanism for the mirror 18b so that the oscilloscope trace consists of a straight line the position of which with respect to a fixed reference mark is a measure of the distance of table 2 from a desired position as determined by the setting of the cursor 21. This distance is then measured by means of the calibrated control T which is adjusted to make the oscilloscope trace coincide with the reference mark. The output from cell 24 may also be employed to stop the motor which produces movement of the table 2 when a predetermined position determined by the setting of the cursor has been reached (Fig. 9, not shown). Specification 684,435 is referred to.
Patent GB-523243-A (GB)
Title: Improvements in hydrovanes and landing floats
IPC: B63B1/18
Filed: 1939-05-02
Abstract: 523,243. Hydrovanes and landing floats ; rudders. WADDINGTON, E. May 2, 1939, No. 13043. [Classes 113 (ii) and 114] A hydrovane or landing float comprises a flat-bottomed vessel turned up at one or both ends and fitted on its under-surface with two or more parallel longitudinal ribs A, B, C, D forming one or more parallel-sided channels under the vessel. The sides of the vessel may be vertical, slanting or curved, and the bottom edges may be slightly rounded. At the after end of two of the ribs the vessel may be fitted with two plungers X, which may be triangular in plan, and which may be projected downwardly from a position flush with the bottom of the vessel, either together to retard progress, or separately for steering purposes.
Patent GB-1453110-A (GB)
Title: Radially compressible bobbin tube
IPC: D06B23/04
Filed: 1974-03-25
Abstract: 1453110 Bobbins GRETENER AG 25 March 1974 [3 April 1973] 13060/74 Heading B8M  A radially compressible, cylindrical or conical bobbin tube of thermoplastic material comprises rigid longitudinal webs between and connected to which are elastic supporting elements each made up of a flexible U-shaped element consisting of two arms joined by a yoke, the arms being connected at their ends with one web and the yoke being connected to the next adjacent web by a rigid element. The tube shown in Fig. 1 (compressed in Fig. 3) consists of webs 2 and supporting elements 3 formed by U-shaped elements 4 each comprising arms 5 and yoke 6 and a rigid linear web 7: the arms 5 of every second element 4 extend in the opposite direction to those of the preceding element. In another tube, Fig. 4 (compressed in Fig. 6) the same elements of a supporting element 3 lie opposite one another on both sides of one longitudinal web 9.