baber/WOPTO huggingface dataset:
Patent GB-203254-A (GB)
Title: Improvements in mechanisms for the reversing of locomotives
IPC: F01L29/04
Filed: 1922-12-19
Abstract: 203,254. Lentz, H. Dec. 19, 1922. Link motions. - In a locomotive valve-gear wherein the rotation axis of the slide-block o is mounted upon an arm g of the eccentric e fitted to the axle a, the axis is arranged at an intermediate part of the arm g and the rods h connected to the valve-gear shafts i are connected near the end of the arms. A bracket b, mounted and oscillating upon the axle a and pivoted by a rod c to the engine or frame d, carries a cylindrical drum m, Fig. 1, having at each end a slot to receive a sliding block o connected to the arm g, the drum m having a lever p operated from the cab by a rod q. In a modification, Fig. 5, the drum m carries blocks o which slide in slots n in discs s which revolve in the arms g. In another modification, the drum carries rocking-arms connected by links to the arms g. When outside cylinders are used, two independent brackets are provided, one for each eccentric, each being separately controlled.
Patent GB-343505-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/38
Filed: 1929-11-13
Abstract: 343,505. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. Nov. 13, 1929, No. 34649. [Class 35.] Armatures, short-circuited screens on cores of; windings.-In a commutator machine, coils are wound on the armature teeth to maintain the flux emerging from any one tooth equal to the flux associated with other teeth occupying corresponding positions with regard to the main poles, the coils surrounding teeth a pole-pitch apart being connected together. In a modified form, the coils surrounding teeth two pole-pitches apart are connected together, but in both cases the connections are such that there are no circulating currents. In the form shown, the armature teeth 1 are surrounded by coils 2, 3, 4 &c., and the coils 2 and 2a, 3 and 3a &c., which are a pole-pitch a apart, are connected together. When coils surrounding teeth two pole-pitches apart are connected together, the connections of the two conductors emerging from the two sides of the teeth are crossed over. Reference has been directed by the Comptroller to Specification 174,345, [Class 35, Dynamo-electrio generators &c.].
Patent GB-448044-A (GB)
Title: Improvements in furnace grates
IPC: F23H17/12
Filed: 1934-12-03
Abstract: 448,044. Furnace firebars. HANSON, J., Pencroft, Sutton Park Road, Kidderminster, and GRIFFITHS, W. W. R. F., Lyncotte, Salford Road, Bidford-on-Avon. Dec. 3, 1934, No. 34656. [Class 51 (i)] Each side f of a furnace firebar a is provided with a number of spaced substantially pearshaped projections b so that when the bars are assembled the projections of one bar abut against those of the adjacent bars forming between them vertical air passages which converge to a throat c and then diverge and merge into a longitudinal passage extending to the upper surface of the bar. The side faces of the bars are formed with vertical grooves h which begin within the diverging portions of the nozzles and gradually increase in depth towards the upper surface of the bars. The grooves on opposite sides of the bars are relatively staggered. The bars may be provided with holes allowing them to be connected together for use as a chain grate.
Patent GB-1273304-A (GB)
Title: N-(substituted)-2-quinoxalinylnitrone-1,4-dioxides
IPC: C07D241/52
Filed: 1970-07-17
Abstract: 1,273,304. Quinoxalinylnitrone-1,4-dioxides; formylquinoxaline dioxides. PFIZER Inc. 17 July, 1970 [3 April, 1970], No. 34664/70. Heading C2C. The invention comprises compounds of the formula in which X is a 6- or 7-hydrogen, methyl, methoxy, chloro, bromo, fluoro or trifluoromethyl substituent; R 1  is hydrogen or methyl; and R 2  is a C 1 -C 4  alkyl or hydroxyalkyl radical. They may be prepared by reacting equimolar proportions of 2-formylquinoxaline-1,4-dioxide or 2-formyl-3-methyl-quinoxaline-1,4-dioxide carrying a substituent X where required, with the appropriate N-substituted hydroxylamine (R 2 -NHOH) or acid salt thereof in an inert solvent. When a hydroxylamine salt is used the process is carried out in the presence of a base. The formylquinoxaline-1,4-dioxide starting materials may be produced by reacting the appropriate benzofuroxan with a dialkyl acetal of pyruvaldehyde or acetaacetaldehyde in the presence of a base. The compounds may be used for promoting growth and improving feed efficiency of animals and may be compounded with apharmaceutically accepted carrier or added to a nutritionallybalanced animal feed.
Patent GB-626981-A (GB)
Title: Improvements in and relating to the voltage regulation of a power supply system incorporating a rectifier
IPC: G05F1/52
Filed: 1946-11-22
Abstract: 626,981. Rectifying ; automatic voltage control systems. SPERRY GYROSCOPE CO., Inc. Nov. 22, 1946, No. 34674. Convention date, Nov. 23, 1945. [Classes 38 (ii) and 38 (iv)] A rectifying circuit supplies a load through a thermionic valve the resistance of which is variable, and the voltage across which regulates a voltage controlling device connected in the A.C. supply to the associated rectifier and filter. By making the valve resistance variable with the output voltage, this voltage is kept substantially constant. A.C. supply 15 is connected through a voltage controller 10, and rectifier and filter 17 to D.C. output terminals 23, 25 across which are fixed and variable resistances 34, 35 in series. The voltage across resistance 34 is compared, in valve 39, with the D.C. voltage at terminal 42 obtained from an auxiliary voltage source 26 supplied from A.C. source 15. The amplified difference is again amplified in valve 46, developed across resistance 49 and applied to the grid of valve 21, thereby altering its resistance and the voltage drop across it. This voltage drop is fed back to the voltage controller 10 at 13, 14. The resistance of valve 21 increases with rise in voltage at terminals 23, 25, to keep this voltage stable, and the voltage controller 10 decreases the volts supplied to rectifier 17 with increase in voltage drop across valve 21 to keep the latter voltage drop safe for the valve. The output voltage is varied by variable resistance 35. The range over which the load voltage is adjustable may be increased by connecting the load to terminals 25, 42 or 25, 32. Fig. 2 shows a suitable circuit for the auxiliary voltage source in which the input A.C. at 27 is connected through transformer 52, fullwave rectifier 55 and series regulator valve 59 to output terminals 28, 31. The output voltage is controlled by the action of vacuum tube 60 in furnishing the correct bias potential to series regulator tube 59 and by the action of voltage regulator tubes 69, 70, 71, which are connected between output terminals 28, 29, 30, 31. The voltage controller 10 may be a saturable core reactor or transformer, a variable capacitor, or an auto transformer or voltage divider operated by a servo-mechanism. An example of the latter is described in which one or other of two relays close to operate the servomechanism, the relays being energized or not, according as to whether the grid voltage derived from the input terminals 13, 14 of an associated valve is at an appropriate level. There is an intermediate position at which the servo-mechanism is stationary, Fig. 3 (not shown).
Patent GB-1586841-A (GB)
Title: Mounting differential gears in axle casings
IPC: F16H48/40
Filed: 1977-08-18
Abstract: A bearing support of a differential gear in an undivided axis housing with two substantially coaxial roller bearings arranged at approximately the same distance to and on different sides of the plane of the axes of rotation of differential bevel gears; each of the roller bearings supports a bearing neck of the differential gear housing within a bearing opening of the axle housing, whereby at least one of the roller bearings includes an outer race which is inserted directly into its bearing opening and is enlarged in its outer diameter, with respect to the corresponding standard diameter.
Patent GB-1357531-A (GB)
Title: Art of moulding
IPC: B29C45/14
Filed: 1970-07-17
Abstract: 1357531 Moulding containers AIRFIX INDUSTRIES Ltd 2 July 1971 [17 July 197( 9 Dec 1970 12 Jan 1971] 34920/70 58558/7( and 29253/71 Divided out of 1348370 Heading B5A [Also in Divisions B6 and B8] A moulding machine for making thin walled containers such as described in Specification 1,348,370 comprises a tool 5, Figs. 2 and 3, carrying six cores 10 in two rows of three, each movable into a cavity 9 of a tool 4 comprising two parts 6, 7 each having six cavities 9 in two rows of three and being carried on a bar 8 which is slidable to bring each part in turn into moulding position opposite the cores 10 and the other into position for the cavities to receive foils from foil carriers 12.
Patent GB-319988-A (GB)
Title: Improvements in and relating to sinks and the like
IPC: E03C1/26
Filed: 1928-11-27
Abstract: 319,988. Coulter, F. C. V. S. Nov. 27, 1928. Sink waste fittings.-A sink is provided with a depression outlet in its floor adapted to receive a straining basket, extending a substantial distance along the length of one side, the depression including the outlet 3 and being preferably constituted by a trough-like formation. The basket may have a flange supported by a recess 5 and members 6, or may have feet resting on the floor of the depression. Cross members 12 may be provided.
Patent GB-1255389-A (GB)
Title: Improvements in and relating to a writing instrument
Inventor: BROOKS ARTHUR DENIS
IPC: B43K24/08
Filed: 1969-07-14
Abstract: 1,255,389. Retractable writing instruments. CONWAY STEWART & CO. Ltd. 10 Sept., 1970 [14 July, 1969], No. 35235/69. Heading B6P. A writing instrument such as a ball pen is projected and retracted by depression of a plunger 14 actuation of which causes tilting and axial movement of a latch member 16 so that the member 16 engages catch means 22 or 23 for holding the pen respectively in retracted or projected position under the action of a retracting spring 13, the catch means 22, 23 being provided on the inner surface of sleeve 15 fitted in the barrel 10 of the instrument and the member 16 having an undercut groove 16g on a head portion for engaging the catch means 22, 23. A deep conical or concave recess 16c in the latch member head is engaged at a by the inner end of the ink cartridge 11 under the action of the spring 13. A shallow depression 16d is provided in the other end of the member 16, and the adjacent end of the plunger 14 has a conical or concave depression 14c. With the pen in a retracted position as shown, operation of the plunger 14 causes the part b thereof to abut the end of the member 16 exerting a force along line c to move the member 16 and pen forwardly until the groove 16g passes beyond the catch 23, the latch tilting slightly under the rearward thrust of the cartridge 11 so that the groove 16g is axially aligned with the catch 23. Upon release of the plunger 14, the groove 16g engages the catch 23, and the end of the cartridge 11 is moved under the action of spring 13 to bear against the side d of the conical recess 16c, whereby the member 16 is caused to take up the position shown dotted with the pen held in projected position. Upon the next actuation of the plunger to move the groove 16g out of engagement with the catch 23, the cartridge will act on the member 16 so as to cause it to tilt to a position opposite to that shown in full lines. Thus, when the plunger 14 is released, the member 16 will engage the catch 22 and be moved back to its original position.
Patent GB-791122-A (GB)
Title: Improvements in or relating to telephone answering machines
Inventor: O'DWYER MARTIN THOMAS
IPC: H04M1/65
Filed: 1954-12-06
Abstract: 791,122. Substation equipment. PYE, Ltd. Dec. 6, 1955 [Dec. 6, 1954], No. 35251/54. Class 40 (4). In a telephone answering machine which is actuated by ringing current and besides sending a message to a caller invites him to record a message; a switch associated with the recording device is operated to render the machine non- responsive when insufficient recording medium is available. In the tape recorder shown contacts 10, 11 are closed when a feeler 7 resting on the tap 3 on feed spool 1 reaches dotted position X to short-circuit operating relay R. A switch S in series with the relay is opened during a call so that the closing of the contacts does not interrupt a call in progress. The feeler which is urged by a spring 9 may when desired be held out of engagement by a stop 12. Where the recording medium is in theform of a disc the switch is operated by the tracking arm.
Patent GB-335443-A (GB)
Title: Improvements in or relating to radio receiving systems
IPC: H04B7/08
Filed: 1929-11-18
Abstract: 335,443. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Moore, J. B.). Nov. 16, 1928, [Convention date]. Fading, preventing; thermionic valve circuits. -Tbe signals from a plurality of aerials, which are either geographically spaced or in different planes of polarization and thus have different fading characteristics, are amplified, rectified and combined, and the combined energy utilized to control the gain of each of the amplifiers, in addition to passing to a utilization circuit. Signals from aerials 2, 4, 6 are passed by transmission lines 8, 10, 12, to amplifiers 14, 16, 18, the output from which is fed to heterodyning devices and detectors, or autodyne circuits 20, 22, 24. The intermediate frequencies thus produced are amplified by amplifiers 26, 28, 30, and detected by valves 32, 34, 36, the output from which passes through low-pass filters 38, 40, 42, a volume control impedance 54, and a condenser 56 for providing the correct time-constant to the volume-control action. The impedance 54 is connected on the earth side of the source 52 of anode potential, and a lead 58 is taken from one side of it, to control the grid bias of valves in each of the amplifying systems. In parallel with the impedance 54 is an impedance 68, from which potentials may be drawn for utilization by an amplifying stage 70, followed by a stage of pushpull amplification 76. The coupling impedance and volume-control impedance may be in series, and the time-constant condenser and volume,- control impedance, in parallel.
Patent GB-848934-A (GB)
Title: Shuttles for looms
Inventor: ENNING FRANZ
IPC: D03J5/00
Filed: 1956-11-20
Abstract: 848,934. Loom shuttles. SCHMEING B., and SCHMEING, K., [trading as SCHMEING GEB]. Nov. 20, 1956 No. 35446/56. Class 142(2). A clamp for preventing axial displacement of the bobbin comprises two arms 1a 1b of an elastic non-metallic material shaped to the bobbin curvature. A steel spring loop may be arranged outside or embedded in the clamp. The'clamp engages grooves 6 in the shuttle walls and is retained therein by projections 8 or by a pin 3.
Patent GB-662841-A (GB)
Title: A control system for alternating-current motors
IPC: H02P27/02
Filed: 1946-11-29
Abstract: 662,841. Control of A.C. motors. BENDIX AVIATION CORPORATION. Nov. 29. 1946. [Jan. 10, 1946] No. 35452/46. Class 38 (iii). [Also in Group XXXV] A control system for reversing the direction of rotation of a polyphase motor comprises a polyphase source of current therefor, energy transfer means interconnecting said motor to said source and normally being in a balanced condition when said motor is at rest, and means provided for said energy transfer means responding to a control signal for unbalancing said energy transfer means whereby current flows from said source to energize said motor, wherein the energy transfer means comprise alternating current transformed interconnecting series motor to said source and having series opposed windings whereby in a balanced condition the motor is de-energized. As shown, the stator windings of a polyphase motor 10 are supplied with two-phase current from a three-phase alternator 15 through Scott-connected transformers 20, 21, 33, and 34, an alternator winding 18 being connected, through transformer primary windings 31 and 32, to the mid-point of a transformer primary winding 22 which is connected in series with the divided primary winding 23 to the alternator windings 16 and 17. One phase-voltage of the two-phase supply is derived from the transformer secondary windings 26 and 27, which are connected in series-opposition and are normally balanced, and is applied to the motor windings 11 and 12. The motor winding 13 is energized with a quadrature voltage which is derived from the opposing and normally-balanced transformer secondary windings 35 and 36. The transformers 33 and 34 are provided with saturating windings 38 and 39 which are energized from an alternating-current source through grid-controlled rectifier valves 47 and 48, the cathodes of which are both connected to a divided saturating winding 54 on the transformer 21. One or other of the valves 47, 48, conducts in dependence upon the direction of a control signal which is derived from a signal generator 60, which may be of the type described in Specification 662,831, [Group XXXV], and is applied to the grids of the valves. When one of the windings 38 or 39 is energized the balance of the transformer secondary windings 35 and 36, is upset and the motor winding 13 is excited by a current the direction of which is dependent upon that of the control signal. Saturating winding 54 is excited whenever one of the windings 38 or 39 is energized, thus disturbing the balance of the transformer secondary windings 26 and 27 and exciting the motor windings 11 and 12. Fig. 3 (not shown) illustrates the positioning of the various transformer windings on the appropriate cores. The primary windings of the saturable transformers may be connected in series-opposition, instead of the secondary windings referred to above. Specification 390,165, (Group XXXV], is referred to.
Patent GB-1341574-A (GB)
Inventor: ISAAC O
IPC: A61K31/70
Filed: 1971-07-28
Abstract: 1341574 Hellebrin DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 28 July 1971 [31 July 1970] 35485/71 Heading C2U In the adsorptive purification of hellebrincontaining extracts on silica gel, the silica gel used has a grain size of from 0À15 to 10 mm. The extract, which may be obtained from the roots of a plant of the hellebore species, may be in solid, semisolid or dissolved form, and has preferably been prepurified by conventional degreasing and solvent-extraction steps. The technique for the inventive purification step may be column or preparative-layer chromatography. The hellebrin-containing eluate may be evaporated and the residue further purified by recrystallization, e.g. in accordance with the process of Specification 1,341,573.
Patent GB-448630-A (GB)
Title: Improved crank actuated driving claw particularly adapted for feeding cinematograph film
IPC: G03B1/22
Filed: 1934-12-11
Abstract: 448,630. Linkwork. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Dec. 11, 1934, Nos. 35575 and 35576. Convention dates, Dec. 14, 1933 and July 18, 1934. [Class 80 (iii)] [See also Groups XX and XVI] A feed mechanism particularly for use in kinematograph apparatus comprises a claw 2 on an arm 1 reciprocated by a crank 3, and a bearing slide 6 on the arm carried by a lever oscillated about a fixed point so that the path of the claw is as shown in dotted lines. Fig. 1 shows a form of the apparatus in which the claw arm 1 is pivoted on a crank-pin 3 on a crank disc 4 actuated by a shaft 5. On the arm 1 is a bearing slide 6 controlled by a lever 7 pivotally connected to an oscillating lever 8 by a pin 9. The lever which is slotted at 13 is pivoted on a fixed pin 11. The lever 8 is rocked about a pivot 14 by an eccentric 16 on the shaft 5 engaging the flanges 15, 15a. In the form shown in Figs. 3 and 4 the claw 2 is pivoted to a crank-pin 3 and the slide 6 pivoted on a Z-shaped lever 18 pivoted on the shaft 5. The slide 6 is controlled by a connecting rod 19 pivoted on the crank-pin 3 and sliding on a sleeve 20 mounted in a bore in the shaft 15 so that it rocks a lever 21 provided with a pin 22 by which the lever 9 is rocked about the axis of the shaft 5.
Patent GB-1039348-A (GB)
Title: Improvements in or relating to float jackets
IPC: A41D13/012
Filed: 1963-09-10
Abstract: 1,039,348. Laminates. K. A. L. NOJD. Sept. 10, 1963 [Sept. 11, 1962], No. 35741/63. Heading B5N. [Also in Division A3] A life jacket comprising flexible, cellular buoyant material has an inflatable bladder which extends from each front part of the jacket through the collar. Between the outer and inner members 90, 92 of the two front parts, collar and upper parts of the sleeves and back there are pieces of foam plastics or rubber. At the front the pieces of foam plastics or rubber comprise a number of strips, severed transversely at the waist and held in place by rows of longitudinal stitching. The back piece is wedge shaped. The lower parts of the back and sleeves are provided with a layer of non-buoyant material such as glass wool.
Patent GB-1156141-A (GB)
Title: An improvement in or relating to Ripping Apparatus for use in Mines
Inventor: DUFFTY JOHN BERNARD
IPC: E21D9/00
Filed: 1965-08-20
Abstract: 1,156,141. Blasting. J. B. DUFFTY. 11 Aug., 1966 [20 Aug., 1965], No. 35892/65. Heading E1F. In a ripping apparatus skirt-mounted plates 12 associated with the head of a conveyer 10 direct ripping blown down onto the plates onto the conveyer.
Patent GB-898317-A (GB)
Title: Improvements in and relating to the manufacture of particle boards
Inventor: WAENERLUND LARS EDWARD
IPC: B27N3/14
Filed: 1960-10-19
Abstract: <PICT:0898317/IV (a)/1> Particle boards are made from shavings impregnated with an adhesive by feeding the impregnated shavings continuously from a hopper on to a balance device, regulating the feed according to the position of the balance device to obtain a constant quantity by weight of shavings per unit of time, unloading the balance device continuously on to a bed plate and pressing the bed of shavings to form particle boards.  Referring to the arriving shavings from hopper 1 pass to belt 2, shoot 6 and to free end of balance arm 7-stripper belt 9 and stripper roller 11 removing excess shavings from the belt 2.  When too little shavings reach arm 7 with conveyer belt 15, the arm pivots upwards to meet contact 27 and complete a circuit which causes motor 3 to increase in speed so delivering more shavings; similarly too many shavings move arm to contact 28 so slowing motor 3.  Motor 14 operating belt 15 acts as the balance counterweight as also does adjustable chain 30.
Patent GB-622958-A (GB)
Title: Improvements in or relating to apparatus for cooling curved stereotype printing plates
IPC: B41D3/00
Filed: 1946-12-04
Abstract: 622,958. Stereotype. LINOTYPE & MACHINERY, Ltd., and BUGLER, A. V. Dec. 4, 1946, No. 35909. [Class 100 (ii)] Apparatus for cooling curved stereotype printing plates 1 comprises a parti-cylindrical chamber 3 above which the plate is supported and having an outlet 4 whence water under pressure can be discharged on the inner surface of the plate through its length, a deflector plate 6 secured along the centre of the outlet, and a second deflector plate 7 above and perpendicular to the first, the plates serving to diffuse water over the inner surface of the plate, and rigid strips 10 being adjustably secured to the chamber 3 for limiting the inwardly contracting movement of the plate during cooling. Each strip 10 is secured to the chamber by screw-threaded members 11 adjustable by nuts 12. The plate 6 passes between packing strips in transverse walls which divide the chamber 3 longitudinally. A slide underlies one end of the plate and has a slot engaging a screw on the chamber 3, and can be slid inwards when a short plate is cooled to cover the unused end of the outlet 4. The outer surface of the chamber 3 could be plain instead of serrated. Specification 470,016 is referred to.