baber/WOPTO huggingface dataset:
Patent GB-726165-A (GB)
Title: Improvements in or relating to three-phase electric arc furnaces
IPC: H02J3/26
Filed: 1953-11-13
Abstract: 726,165. Electric arc furnaces; current supply. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 13, 1953 [Dec. 15, 1952], No. 31481/53. Class 39 (3). In three phase electric arc furnaces having a middle electrode 3 and two outer electrodes 1. 2 each connected by a supply line to its associated phase on the transformer, reactance means is introduced into the supply system to reduce or eliminate asymmetry of the load; and the reactance of the middle phase is increased with respect to the reactances of the outer phases preferably by an amount x 2 d which related to the low side of the furnace transformers has a value x 1 +x 3 /2 - 2y, where x, and x, are the reactances of the single phase circuits established. by the middle electrode and one of the outer electrodes including their supply lines and y is the mutual inductance between said single-phase circuits. Reactance means preferably comprises a laminated iron core 10 with an air gap surrounding the supply line to the middle electrode. A current loop 11 embracing half the magnetic field of the iron core is connected in series with the connection lead 12 between the neutral point of the furnace and the neutral point 13 of the voltage coils of the relays in an electrode control regulator 14, thereby applying an additional value derived from half the value of the reactance obtained in the middle phase of the furnace to said connection lead from the mantle of the furnace to the electrode regulator, in order to compensate. asymmetry in the phase voltages received by the relay.coils of the regulator. If the transformer phases are y connected on the low voltage side, increase of reactance may also be obtained on the primary side by decreasing the reactances of the outer phases on the primary side. Negative reactances i.e. serigs condensers may be connected in the outer phases of the transformer.
Patent GB-673808-A (GB)
Title: Improvements in and relating to windings for electric induction apparatus
IPC: H01F27/38
Filed: 1950-12-28
Abstract: 673,808. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 28, 1950 [Dec. 31, 1949], No. 31487/50. Class 38 (ii). A three-phase induction apparatus is provided with a magnetic core 1 having three main legs A, B, C, and a pair of auxiliary legs 8, 9, the main primary and secondary windings 2, 3 being wound on the main legs and connected in starstar relationship and a pair of auxiliary equalizing windings 10, 11 being wound on the auxiliary legs and connected in opposition in a closed loop relation so as to reduce to a minimum the neutral shift in the fluxes in the main legs and in the voltages in the main windings. The net fluxes #A, #C are equal in magnitude and symmetrically spaced with respect to #B, but #B is smaller than #A or #B due to the shift of the neutral point caused by the fact that although #4 is equal in magnitude to #7 they are not in phase. The effect of the equalizing windings 10, 11 is to force the fluxes #4, #7 into phase, thus preventing a shift of the neutral point. The core construction may be of wound strip or punched laminations.
Patent GB-1536274-A (GB)
Title: Bale collectors
Inventor: JACKSON MICHAEL VIVIAN
IPC: A01D87/12
Filed: 1975-10-31
Abstract: 1536274 Bale collecting FARMHAND (UK) Ltd 31 Oct 1975 [31 July 1974 25 July 1975 15 Sept 1975] 31516/78 31517/78 and 31518/78 Divided out of 1536273 Heading B8H A loose bale accumulator of the kind which will retrieve individual bales on the ground and accumulate those bales into a regular array for subsequent mechanical handling comprises a plurality of bale-receiving areas, a corresponding plurality of bale entry points at each of which bales may enter the accumulator for collection within the respective area, and means to facilitate entry of bales into the entry points. As shown four bale-receiving areas are formed by guide members 33 and guide rails 12. The device is advanced over the ground in the direction of arrow A towards a bale B lying on the ground as discharged by a baling machine. Right-hand static guide 13 and adjacent rotatable deflector plate 25 form a funnel-like bale-entry point. The bale B is retained in position B<SP>1</SP>, when a second bale can be be collected in position B<SP>11</SP>. This latter bale B<SP>11</SP> holds a sensor 27 deflected against spring loading resulting in the associated plate 25 being rotated through a link 29 into the position shown dotted. The next bale-receiving bay is then provided by its two associated plates 25 with a funnel-like entry point and a total of eight bales can be accumulated in this way. In a modification upwardly pivoting gates at the bale entry points may be used, Fig. 12 (not shown). Entry into the bale-receiving areas may be facilitated by a single guide arrangement (replacing the guides 13 and 25), which can be aligned successively with the bale entry points, Figs. 17, 18 (not shown).
Patent GB-285606-A (GB)
Title: Improvements in means for controlling the relative speeds of a series of machines for drying, stentering and otherwise treating fabrics
IPC: D06C7/00
Filed: 1926-12-14
Abstract: 285,606. Isherwood, N. Dec. 14, 1926. Feeding and winding webs.-The tension of a one machine to another, or from a machine to a one machine to another, or from a machine to a winding apparatus, is maintained constant by driving the second machine or the winding- spindle by one shaft of a, differential gear, the other shaft of which is controlled by a. brake. As applied to a winding spindle G for receiving a web as it is delivered from a drying-machine, the spindle is connected by a clutch u to one shaft a of a differential gear of known construction driven by the pulley f, the other shaft b of the differential gear being provided with a brake drum s engaged by a brake strap t which is tensioned by a spring t<1> adjustable by a nut t<2> to vary the normal winding tension of the web. Instead of using a band brake, the shaft b may be caused to drive a rotary or other pump, the load on which may be adjusted by a throttle valve.
Patent GB-263489-A (GB)
Title: Improvements in collapsible cores or mandrels
IPC: B28B7/30
Filed: 1926-12-14
Abstract: 263,489. Truman, C. P. Dec. 22, 1925, [Convention date]. Moulding pipes and tubes. - A mandrel or core for making pipes, tubes, conduits &c. from cement, asbestos or fibrous cement, paper &c. comprises a tube slotted longitudinally and adapted to be expanded by a bar removably held in the slot. As shown, the tube 8 is furnished with a longitudinal slot 10 having bevelled edges 11 and is expanded by a bar 9 having a curved face 12 and provided with grooves 13 complementary to the edges 11. Both slot and bar are tapered. At each end of the bar is a lug 14 having a screwed hole 15 to receive an eye bolt &c. to facilitate insertion and withdrawal of the bar.
Patent GB-1221085-A (GB)
Title: Chromatograph for determination of admixtures in gases
Inventor: SAMUILOV VIKTOR IVANOVICH
IPC: G01N30/30
Filed: 1968-07-03
Abstract: 1,221,085. Gas chromatography. MOSKOVSKY ZAVOD SZHIZHENIA PRIRODNOGO GAZA. 3 July, 1968, No. 31762/68. Heading B1L. A gas chromatograph which is capable of continuous separations, and is especially suitable for determining and separating impurities in low-boiling gases such as helium and neon, comprises a circular (or helical-see Fig. 3, not shown) column 3, which is rotated about axial shaft 5 by electric motor 10 and gearing 42, 43. The column itself is mounted so that part is always immersed in a refrigerant bath 1, e.g. containing liquid nitrogen, while another part is passing through a hot zone created by heater 2. The sample passes along shaft 5 (see Fig. 4, not shown) and channel 14 to column 3 which rotates clockwise so that the high temperature field created by heater 2 moves along the column in the direction of gas flow. A fan 23 is provided to cool the heated column before it enters refrigerant bath 1. A comparative control system is also described (see Fig. 7, not shown).
Patent GB-604539-A (GB)
Title: Improvements in or relating to safety devices for electrical heating apparatus
IPC: F24C7/08
Filed: 1945-11-26
Abstract: 604,539. Electric stoves. COCKMAN, F. R. Nov. 26, 1945, No. 31869. [Class 126] [Also in Group XXXVII] Movement of a pivoted electric-fire guard 6 in either direction causes an arm 9 to be raised by a V-ramp 16, so that the detent 15 releases a switch arm 12 to de-energise the heating element. The switch may be spring or gravity operated, or alternatively may be positively operated by displacement of the guard. A shield normally forming part of the reflector may be moved to cover the element when the switch is operated.
Patent GB-337585-A (GB)
Title: Method and apparatus for skinning slaughtered cattle
IPC: A22B5/16
Filed: 1929-10-21
Abstract: 337,585. Mothes, E. F. Oct. 21, 1929. No Patent granted (Sealing fee not paid). Slaughtering. - The skinning of slaughtered animals is facilitated by injecting carbon-di-oxidebeneath the skin. As shown, the gas is supplied from an ordinary steel bottle a. The injection nozzles are inserted each at the end of a leg and are connected to a header b by flexible connections d. The nozzles have perforated cone-shaped ends.
Patent GB-1108819-A (GB)
Title: Derivatives of 2-acylaminobicarboxylic acids and method for preparing same
IPC: C07C233/12
Filed: 1965-07-26
Abstract: Novel compounds of the formulae <FORM:1108819/C2/1> and <FORM:1108819/C2/2> where R2 is an alkyl or aryl group, n is 1 or 2 and one of the R1 and R3 substituents is -OH group, the other substituent being a mono- or di-substituted amino group in which the substituent is an alkyl, aryl, or heterocyclic group, and their non-toxic, pharmaceutically acceptable addition salts, are obtained in a process which comprises contacting a compound of the formula <FORM:1108819/C2/3> wherein R2 and n are as defined above with a member selected from the group consisting of primary and secondary amines and thereafter forming a salt.ALSO:Pharmaceutical compositions which may act as central nervous depressants or stimulants and may be used as gastro-intestinal antisecretory agents, comprise compounds of the formulae:  <FORM:1108819/A5-A6/1> and <FORM:1108819/A5-A6/2> wherein R2 is an alkyl or aryl group, n is 1 or 2 and one of the R1 and R3 substituents is an -OH group, the other substituent being a mono-or di-substituted amino group in which the substituent is an alkyl, aryl, or heterocyclic group or their pharmaceutically acceptable addition salts and other agents, e.g. spasmolytics such as the opium or belladonna alkaloids, parasympatholytics such as tridihexethyl iodide, anticholinergies such as propantheline bromide, antacids such as aluminium, calcium and magnesium hydroxide or magnesium trisilicate, and tranquilizers such as 1, 4-benzodiazepines and meprobamate.  They may be administered orally, parenterally or as a suppository.
Patent GB-520312-A (GB)
Title: Improvement in mechanism for effecting discharge in upright and inverted positions of liquid containers having the contents under gas pressure
IPC: A62C13/00
Filed: 1938-11-04
Abstract: 520,312. Fire - extinguishing; discharging receptacles by direct gas pressure. GRAVINER MANUFACTURING CO., Ltd., SALMOND, H. M., and MATHISEN, A. Nov. 4, 1938, No. 32014. [Class 47 (ii)] [Also in Group XXVIII] A metal bottle 1 for storing liquid such as carbon tetrachloride under gas pressure, particularly for fire extinguishing in aircraft engine nacelles comprises a container 1 with known discharge fittings 5 and an open supply tube 13, 14, the ends of which are disposed near the ends of the container and substantially centrally thereof. Valves 15, 16 are connected together by a rod 17 so that whichever valve is uppermost is closed by gravity leaving the  other open. There is also an intermediate chamber 11 connected by three conduits such as 8, 9 leading to the discharge. Thus the  apparatus which is twothirds full of liquid will function in any position even when horizontal as the central tube will then be submerged. Specification 458,429 is referred to.
Patent GB-1394242-A (GB)
Title: Circuit arrangement including an inductive load circuit which is provided with a switching transistor for switching on and off the load current therein
IPC: H03K17/64
Filed: 1972-07-07
Abstract: 1394242 Protecting inverter SIEMENS AG 7 July 1972 [12 May 1972] 32034/72 Heading H2F [Also in Division H3] In a three phase inverter, each transistor of a three phase bridge T 3 -T 8  is protected from secondary breakdown when it switches its inductive load off by a protection circuit S 2  or S 1  comprising a switching device such as transistor H 2  in series with a resistor across the collectoremitter path of the protected transistor, the switching device being made conductive to dissipate the excess voltage by a network such as resistor R<SP>1</SP> 2  and capacitor C 2 . A Zener diode n2 may also be provided to limit the voltage across transistor H 2 . Diodes n3-n8 appropriately connect the protection circuits to each transistor in turn, i.e. circuit S2 protects transistors T 6 -T 8  sequentially. The resistor R 2  may be non-linear and the resistor R<SP>1</SP> 2  of the resistance of conductor wires to the circuit.
Patent GB-341140-A (GB)
IPC: F26B11/04
Filed: 1929-10-22
Abstract: 341,140. Rotary drying-apparatus. SACHTLEBEN AKT.-GES. FœR BERGBAU UND CHEMISCHE INDUSTRIE, Homberg, Niederrhein, Germany. Oct. 22, 1929, No. 32099. Convention date, Oct. 25, 1928. [Class 34 (ii).] A rotary drum 3 for drying material such as lithopone contains a rotating muffle 4, heated externally by furnace gases passing in the same direction as the material inside the muffle, and internally by hot gases of a suitable character in counter current. The material introduced by a worm 1 traverses helices 5 and is broken up by shovels 6 before passing by way of scoops or ladles 7 into telescoping tubes 8, whence it falls into a chamber 15. The external heating furnace gases pass through a heat exchanger 16 on the way to the flue. A fan 17 forces the air or other gases used inside the rotating muffle first through the exchanger 16, part being diverted into the receiving chamber 15. These gases are relieved of much of the dust and water vapour they carry when they impinge on the wet material in the conical charging end 2. They are further treated and washed by a rinsing nozzle 20 in the discharge tube and finally by passage through a tank 21 partially filled with water provided with a mixing screw 22 covered with a wire sieve. The discharging ends of the tubes 8 are surrounded by a sheet metal casing 11 with tightening means 12 to prevent the escape of the furnace gases except at the discharging conduit 14.
Patent GB-355107-A (GB)
Title: Prepayment gasmeter particularly for supplying gas under a tariff with a fixed due, the meter housing being provided with two slots
IPC: G07F15/06
Filed: 1930-10-25
Abstract: 355,107. Prepayment mechanism for meters. NAAMLOOZE VENNOOTSCHAP DE NEDERLANDSCHE GASMETER FABRIEK G. WILSON, MAATSCHAPPIJ VOOR AANLEG VAN GAS-EN WATERLEIDINGEN, 241, Loosduinscheweg, The Hague. Oct. 25; 1930, No. 32127. Convention date, Oct. 28, 1929. [Class 27.] Mechanism for preparing fix e d charges.-The meter casing has two coin slots behind which is a single rotary drum 2, Fig. 3, provided with h two coin slots 3, 4, a sleeve 6, having slots 3<1>, 4<1>, being loosely mounted on the drum 2. When the fixed charge is to be paid, a coin can be inserted in the slot 3 only, the slot 4 being closed by the sleeve. This coin, by engagement in the slot 3<1>, couples the drum and sleeve together so that, when the drum is rotated in the direction of the arrow, the sleeve is also turned. After the coin drops out, the drum is turned back but the sleeve remains stationary and blocks the slot 3, Fig. 5. Coins can now be inserted into the slot 4 through the slot 4<1>, which allows the coins to pass to the slot 4, but such coins do not couple the drum and sleeve together, the slots 3, 4 being arranged in staggered relationship to effect this. The drum is turned in the opposite direction for coins in the slot 4 to actuate the toothed quantity wheel 5. The parts are reset in their initial position by a collector pulling a button 7 connected to a slotted link 8 pivoted to the sleeve 6 and rotated about a pin 9 which is located in the slot of the link.
Patent GB-446021-A (GB)
Title: Improvements in presses for artificial resins
IPC: B30B1/04
Filed: 1934-11-09
Abstract: 446,021. Presses for artificial resin. BERGES, C., and BERGES, W., (trading as BERGES MASCHINENFABRIK, C. & W.), Am Kruenberg, Marienheide, Rhineland, Germany. Nov. 9, 11134, No. 32272. Convention date, Nov. 10, 1933. [Class 87 (ii)] A lever system 6 ... 10 for operating the head 3 is actuated by toothed segments 11, 12 with profiles comprising both convex and concave portions such that the die moves rapidly down to the work, moves into contact therewith at a slower speed without undue impact, and then moves at a speed corresponding to the rate of softening or yielding and final hardening of the resin. The press may be driven by hand or power. A lower guide 2 for the head 3 is adjustable vertically to suit the work, and the frame of the machine is strengthened by bars 32. As shown in Fig. 1, the head 3 is connected to the lever 6 by a screwed rod 5 adjustable in a nut 4 and secured by a lock-nut. The lever system 6 ... 10 is arranged to give slow movement of the die at the limit of the down stroke. The press is actuated by a double hand lever mounted directly on the shaft 13. The hand lever comprises a shorter lever 14 for quick movements without load and a longer lever 15 for applying power. In a modification, Fig. 3, the press is provided with a hand lever 16 and a motor 26 for alternative use, both operating a pulley 19 loose on the shaft 13. This pulley drives the shaft 13 by means of a rope or chain 21 and a pulley (not shown), keyed to the shaft. The rope 21 passes over a pulley 22 mounted on a pivoted lever 23 connected to a spring 20. During the latter part of the operative movement of the lever 16 or pulley 19 the resistance to the die causes movement of the lever 23 extending the spring, and the final movement of the die is effected by the return movement of the lever 23 effected by the spring, whilst the lever 16 is locked by a catch 24. The final pressure is regulated by adjusting the anchorage of the spring against a scale 25. The return of the die is ensured by a lug 30 on the wheel 19 engaging an arm 18 on the shaft 13. The motor 26 drives the pulley 19 through reversing gearing which provides a higher speed for the return stroke. A clutch is provided on the motor shaft.
Patent GB-300140-A (GB)
Title: Improvements in or relating to the manufacture of organic esters of cellulose
IPC: C08B3/22
Filed: 1928-11-05
Abstract: 300,140. British Celanese, Ltd., (Assignees of Schneider, G.). Nov. 5, 1927, [Convention date]. The Specification as open to inspection under Sect. 91 (3) (a) includes the subject-matter of Specification 326.515. This subject-matter does not appear in the Specification as accepted.
Patent GB-1004646-A (GB)
Title: Inflatable flexible structure
Inventor: SHAW RONALD ANDREW
IPC: B60V1/00
Filed: 1963-08-15
Abstract: 1,004,646. Air cushion vehicles. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 13, 1964 [Aug. 15, 1963], No. 32287/63. Heading B7K. A flexible structure comprises at least one bag member inflatable to a desired configuration, the said bag member being provided with at least one aperture arranged to be closed when the structure is in the desired configuration, a separately inflatable framework arranged to define said desired configuration when inflated, and valve means operable by inflation of the framework so as to cause inflation of the bag member. In the embodiment, for an air cushion vehicle, a flexible skirt comprises a plurality of adjoining sections, of which the centre one in the Figure is shown in detail and comprises a tubular framework la inflated. from a highpressure air duct 8 and closed at the top by a top panel 7 and side panels and is divided by a further panel 11. The panels 7 and 11 are provided respectively with valves 12; 13 actuated by means 14a, 14b connected to the tubular framework so that inflation of the framework causes the valves to open and admit low pressure air from an air duct 15 to the cavities formed by panel 11. Optimum pressure in the cavities operates through a conduit 16 to close a valve 10. Adjoining side panels are formed with apertures 17, 18 and matching closure members 19, 20, whereby the cavities are normally sealed. Upon a skirt striking an obstacle one or more sections will be deflected with separation of closure members from the apertures, thereby permitting the section(s) to deflate without damage. When the obstacle has been cleared, the framework(s) la restore the sections to their correct positions for re-inflation.
Patent GB-745321-A (GB)
Title: Improvements in or relating to collapsible deck chairs
IPC: A47C4/30
Filed: 1953-12-20
Abstract: 745,321. Folding chairs. POWER, R. F. April 12, 1954 [Dec. 20, 1953], No. 32313/53. Class 52(2). A collapsible deck chair has a stretcher member 11 interposed between the canvas body support 8 and the back of limbs 4 of the strut to form a substantially horizontal seat. The stretcher member 11 is located below abutments 12 on the limbs 4, and it may be notched to embrace limbs 4. A modification has the transverse stretcher member carried in a transverse pocket in the canvas body support 8. Member 11 may be received in notches in the limbs 4.
Patent GB-668081-A (GB)
Title: Improvements in or relating to machines for cutting thin material
IPC: B26D5/22
Filed: 1948-12-15
Abstract: 668,081. Cutting strip material. FORSTER, L. G. Dec. 15, 1948, No. 32471/48. Class 31 (i). A machine for cutting lengths of thin material comprises a movable cutter co-operating with a rotating cutter, a driving feed roller co-operating with a non-driven roller, gearing connecting the cutters and the driving feed roller and means permitting driving feed rollers of differing diameter to be interchanged without changing the gearing. As shown in Fig. 1, strip material is fed, from a roll, over an adjustable swinging pulley 13 which serves to straighten the strip which then passes between guides 10, 11, Fig. 4, to an idle roller 30 and a driving roller 53 mounted on a spindle 47 which is driven through an intermediate idle gear by a gear on spindle 25. The rotating cutter 26 is secured to a squared portion of the spindle 25 which is driven by a gear on a shaft 33 on which is mounted an eccentric cam 35 surrounded by a ball-race 36. A cutter 66 is mounted in a frame 68 which reciprocates under the action of the eccentric assembly 35, 36 coacting with a stop 86 on the frame, thus intermittently bringing the cutter 66 into a forward position where it coacts with the rotary cutter to shear the strip. The length of the strips cut may be varied by using a roller 53 of different diameter, thus altering the speed at which the material passes through the machine. The spindle 47 is journalled in a frame 40 which is pivoted about the shaft 25, thus allowing the frame to be swung away from the machine so that the driving roller assembly which is held in U- shaped slots in the frame may readily be changed for one having a roller of different diameter. Specifications 668,080 and 668,082 are referred to.