baber/WOPTO huggingface dataset:
Patent GB-360962-A (GB)
Title: Improvements in automatic weighing machines
IPC: G01G23/20
Filed: 1930-08-13
Abstract: 360,962. Weighing-apparatus. RAASCHE, M. and RAASCHE, R., (trading as RAASCHE SÍHNE, P.), 69, Elisabethstrasse, Riga, Latvia. Aug. 13, 1930, No. 24260. Convention date, Aug. 15, 1929. [Class 143.] Indicating-mechanism; pendulum-weight apparatus.-In an automatic weighing-machine having an index arm 17 registering with an arcuate uniformlydivided chart 24 to indicate the major units of weight, the minor units of weight are indicated by a chart 20 and pointer 21 carried by the index arm, a pinion on the pointer spindle meshing with a fixed arcuate rack 23 and the zero mark of the chart 20 serving as an index for the chart 24. The pointer 21 may be provided with two or more arms to allow the divisions on the chart 20 to be condensed into a corresponding fraction of a circle. The load is counterbalanced by a pendulum lever 11, Fig. 2, fulcrumed on a knife-edge 2 and connected to the platform mechanism by draw-rods 9, 10. The index arm 17 swings about the pivot 18, is provided with a counterweight 19, and is connected through arm r and link 14 to an arm r<x> on the pendulum lever. To enable the use of uniformly divided charts, the relative lengths of the arms r, r<x> are calculated from the formula : r<x> = 1À7453 r sin 350‹-#/4, where # is the maximum deflection of the index arm in degrees. Platform machines.-The platform is supported on knife-edges 34, Fig. 3, carried by arms projecting from elongated knife-edges 29, 30, two of the arms 7, 8 being extended for connection to the draw-rods 9, 10. The plane of the counterbalancing mechanism may be at any angle relative to the vertical planes of the arms 7, 8. The platform levers may be situated in different planes and may have a triangular configuration. Vibration, preventing and neutralizing.-The movements of the pendulum are limited by the abutment of a rubber stop thereon, with fixed stops 25, Fig. 2. The vibrations of the platform are damped by a dashpot 27, Fig. 3, connected to the platform spider, and the vibrations of the pendulum are damped by a dashpot 15, Fig. 2, connected to the arm r<x>.
Patent GB-626066-A (GB)
Title: Improvements in or relating to double-agitator kneader
IPC: B01F7/04
Filed: 1946-08-15
Abstract: 626,066. Kneading machines. LIST, H. Aug. 15, 1946, No. 24312. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 21, 1947]. [Class 86] A kneading machine has two agitators 1 and 2 which rotate about axes inclined at an angle thereby causing the agitator arms 4 to approach in the lower portion of a V-shaped mixing vessel 3 and to diverge from one another in the upper portion thereof. In a modification, a spider is loosely mounted between and has arms which interengage with those of the agitators 1 and 2. In a further modification, the arms of the two agitators lie in planes askew to the axes of the two agitators. The vessel 3 is discharged by tilting and one of the walls may be made detachable.
Patent GB-615024-A (GB)
Title: Improvements in or relating to screw-operated jacking devices
IPC: B66F3/08
Filed: 1946-08-15
Abstract: 615,024. Jacking apparatus for vehicles. ALLEY, S. E., and ALLEY TRAILERS, Ltd. Aug. 15, 1946, No. 24327. [Class 79 (iii)] [Also in Group XXX] In a screw jack, which may be attached to the chassis 10, Fig. 1, of a vehicle, the nut 14, Fig. 4, is elongated and its bore is enlarged at 16 so that a space is formed between it and the spindle 11 which is filled with lubricant. The nut may be threaded at 18, 20 or at 18 only. The nut may be a casting as shown, or may be composed of three units welded together. The flange 15, by which the nut is secured to the chassis, may be welded to the upper end or to the side of the nut.
Patent GB-637472-A (GB)
Title: Improvements in method and apparatus for handling pulverulent materials
IPC: B63B27/25
Filed: 1947-09-04
Abstract: 637,472. Pneumatic conveyers. FULLER CO. Sept. 4, 1947, Nos. 24455 and 24456. Convention dates, Oct. 17, 1946. [Class 78 (i)] A method of conveying powder materials through an open pipe 15 (Fig. 1) from a bin 12 which is at atmospheric pressure comprises introducing inert gas (e.g. at 14) into the bin to fluidise the material and also introducing it in larger volume into the material (e.g. at 18) within the lower end 17 of the pipe to cause the material to be discharged up the pipe. Fig. 1. Material introduced through pipe 22 is fluidised by air introduced through permeable plates 13 from inlet 14 and is raised by a jet of air from pipe 18 blown into the pipe 15, the material collecting finally in container 16. Outlets 19, 20 lead to the atmosphere. Fig. 2. Material fed into chamber 23 at 27 from hopper 26 is fluidised by air introduced at 25 through porous material 24 and is raised up pipe 29 by air in greater volume introduced from pipe 31. The material passes to chamber 32 where air is injected at 36 to raise the material to chamber 34. Chambers 23 and 34 are maintained at atmospheric pressure by vents 28, 38 and pipe 37 ensures that chamber 32 is also at atmospheric pressure. Fig. 3. Material introduced at 52 into chamber 39 is fluidised by air passing up from pipe 49 up through porous plate 43 and is elevated up pipe 46 by air in greater volume introduced from pipe 44 through pipe 48, the pipes 44 and 49 having a common source 51. Chamber 39 is vented at 55 and has its input of material governed automatically between the limits 53 and 54. The material may be discharged from pipe 46 into a side hopper, the pipe being bent and cut away underneath to allow the material better to fall into the hopper and the hopper leading to an air conveyer. Fig. 7. The material raised up pipe 82 as before by fluidising air at 79 and elevating air at 84 passes into chamber 86 where it is maintained at a constant level, the excess passing through outlet 93 back to the lower chamber 77 and the contents fed out by screw 90 through pipe 92 at uniform rate.
Patent GB-743040-A (GB)
Title: An improved toy motor car
IPC: A63H17/00
Filed: 1953-09-04
Abstract: 743,040. Mechanical toy vehicles. ERHARD, K. and JACOBOWITZ, M. Sept. 4, 1953 [April 29, 1953], No. 24533/53. Class 132(3) A toy clockwork driven motor car is provided with means to temporarily interrupt its travel, open the sliding roof of the car, and cause a driver figure to be lifted up through the roof. Three arms 6, 7, 8 are secured to a shaft 5, a portion of arm 6 being engageable by pins 9, 10 of a slowly revolvable member of the driving mechanism 2. Arm 7 is pivotally connected to the sliding roof 16, and a figure 11 weighted at 17 is freely mounted on arm 8. Upon pin 9 or 10 engaging arm 6, a downwardly extending portion of this arm lifts the rear end of the car, the arm 7 slides the roof 16 rearwardly, and arm 8 raises the figure 11 which tilts forwardly slightly Fig. 4 (not shown).
Patent GB-236782-A (GB)
Title: Improvements in or relating to purifying antimonial lead alloys or other antimonial metals
IPC: C22C11/00
Filed: 1924-10-16
Abstract: 236,782. Wade, H., (United States Smelting, Refining, & Mining Co.). Oct. 16, 1924. Alloys.-Impurities such as arsenic or arsenic and copper are removed from antimonial metals or alloys such as lead-antimony alloys or leadantimony-tin alloys by treating the molten alloy with caustic alkali such as caustic soda, or an alkali salt such as soda ash, at such a temperature that the arsenic unites with the alkali without the antimony being affected. In the case of caustic soda the preferred temperature is 480- 540‹ C. The alkali is stirred into the molten alloy mechanically or by blowing in air or steam. The treatment may be effected in successive stages, the spent reagent being removed from time to time. Removal of the molten alkali and dross from the treated metal may be facilitated by adding to it an inert thickening material such as cement, slag, firebrick, clay, or sand. Copper may be removed by treating the molten alloy, preferably before the removal of the arsenic, with sulphur at about 295-315‹ C.
Patent GB-590499-A (GB)
Title: Improvement in magnetos
IPC: H02K21/22
Filed: 1944-12-08
Abstract: 590,499. Ignition magnetos. WICO ELECTRIC CO. Dec. 8, 1944, No. 24624. Convention date, Oct. 12, 1943. [Class 35] A magneto has an annular rotor comprising two short magnets with their like poles connected by arcuate magnetic members of unequal length each having arcuate pole shoes at each end and co-operating with the two polepieces of a stator surrounded by the rotor. In the form shown, the arcuate pole members have pole faces 37, 38, 39, 40 co-operating with the armature polepieces 11 and a projection 44 for balancing purposes, the airgap between the latter and the polepieces 11 being too great to vary the flux sufficiently to produce an additional'spark, since the magneto is intended to give one spark per revolution only. For this reason, the arcuate members have inclined portions 37<1>, 38<1>, 39<1>, 401 to change the flux gradually. The accessories are mounted on a back-plate, with provision for adjustment, the plate having a flange forming with the flywheel carrying the magnets an almost complete enclosure.
Patent GB-948476-A (GB)
Title: An apparatus for the production of pressed synthetic plastics mouldings
IPC: B29C45/26
Filed: 1961-07-07
Abstract: 948,476. Moulds for gramophone records &c. W. BATTENFELD. July 7, 1961 [March 22, 1961], No. 24698/61. Heading B5A. Improved strain free reproduction for thin section parts e.g. gramophone records, results from the use of a mould having a cavity 21 formed by a stationary die core 12 circumscribed by a spring supported and vertically movable annular sealing frame 10 which acts also as support for a matrix plate 20. Synthetic plastics material is fed to the cavity by injection through and from below the bottom force 12 Fig. 1 or laterally from a worm fed nozzle, Fig. 4 (not shown), and moulded by moving a top face 11 towards the bottom face 12 and into contact with matrix plate 20. Conical mating surfaces 17 and 18 are provided for alignment on the bottom force 10 and top force 11 and the bottom force 10 is sprung either by coil springs 16 or hydraulic or pneumatic means (not shown). Sealing frame 10, top force 11 and bottom force 12 may be provided with channels for heating or cooling medium.
Patent GB-596303-A (GB)
Title: Improvements in or relating to the production of nitro olefines
Filed: 1944-12-11
Abstract: Nitro-olefines with at least 3 carbon atoms are prepared from the mono-nitro derivatives of the nitrates of saturated aliphatic hydrocarbons containing at least 3 carbon atoms or of saturated alicyclic or saturated aliphaticalicyclic hydrocarbons containing at least 5 carbon atoms in the ring, in all of which the nitro and nitrate groups are attached to adjacent carbon atoms, the former carbon atom having attached thereto at least one hydrogen atom, by treating them in the presence of water with an inorganic basic substance such as the oxides (where they exist), hydroxides, carbonates (including bicarbonates and basic carbonates where they exist) of the alkali metals, ammonium, alkaline earth metals, magnesium, lead, and the oxide, hydroxide, carbonate and basic carbonate of zinc.  The preferred products are the nitro-aliphatic olefines obtained from the nitrates of saturated nitro-aliphatic hydrocarbons containing up to 8 carbon atoms.  The basic substances may be used in solution or suspension; those preferred are the oxides and hydroxides of the alkali metals, the proportion used being preferably equivalent to one mole. of nitric acid produced per mole. of nitro/nitrate compound.  The reaction may be carried out at atmospheric temperature or in the arm, but temperatures approaching that of boiling water should be avoided.  Desirably, an excess of water is used relative to the nitro/nitrate compound.  The nitro/nitrate compound may be reacted in a dispersed state or a solvent for the compound may be present. In examples: (1) aqueous sodium hydroxide is added with stirring to an aqueous suspension of nitro-tertiary butyl nitrate and a -isobutene recovered by extraction with ethyl acetate followed by distillation; (2) aqueous ammonium bicarbonate is added with stirring to a suspension of 1-nitro propanol-2 nitrate ester in methanol at 15 DEG  C., the solution acidified with hydrochloric acid and polynitro propylene filtered off; (3) the nitrate ester of 1-nitrocyclohexanol-2 in ether is treated with aqueous caustic soda and the product worked up to recover 1-nitro-cyclohexene-1. Specification 573,785 is referred to. A sample has been furnished under Sect. 2 (5) of nitro-cyclohexene prepared according to example 3.
Patent GB-162988-A (GB)
Title: Improved means or apparatus for opening and closing ports employed in charging coal into a ship
IPC: B63B19/10
Filed: 1920-08-26
Abstract: 162,988. Powell, A. Aug. 26, 1920. Ports.-A cording- port a hinged along its bottom edge at c to the ships' side and provided with internally projecting side mem. bers d is operated from the ship's deck by a screwed shaft f fitted with a. screwed cross-head j connected by links k to a crossbar l fixed between the side member extension pieces d'. The links k may function as a strong-back to hold the door in the closed position, by disconnecting them from the bar l and connecting the forked ends p of the bolts r tn the lugs q on the door, as shown in dotted lines. The door is rendered watertight by jointing t and a guard o may be fitted to protect the hinge c from fouling by the coal. The shaft f passes through a pedestal on the deck, provided at the top with a screwed cap.
Patent GB-1065624-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
IPC: G01C19/38
Filed: 1965-06-11
Abstract: 1,065,624. Friction brakes. TELDIX LUFTFAHRT - AUSRœSTUNGS - G.m.b.H. June 11, 1965 [June 27, 1964], No. 24776/65. Heading F2E. [Also in Division G1] A gyroscopic apparatus (see Division G1) is mounted in a cylindrical oscillating housing 1 suspended by means of a universal joint 2 in a casing 3, 4, 5, the central part 3 of the casing being mounted on a series of oscillation dampers 7 and the cylindrical oscillating housing 1 is provided with a curved undersurface which is adapted to be acted upon by a braking device 9. The braking device 9 consists of a plunger 10 on which an armature plate 11 is rigidly mounted such that the plunger is retracted when an electrical winding 15 is energized and is applied against the surface la when the winding is de-energized by means of a spring 13. The magnet winding 15 is connected through a line 16 directly and through a line 17 via a contact 18 of a switching device 19 to an electronic pulse generator 20. In operation, assuming that the oscillating housing 1 assumes the deflected position 30 shown in broken lines, the winding 15 of the brake release mechanism is de-energized and the plunger presses against the braking surface 1a to arrest the oscillating housing 1. If the gyroscope is to be brought into the vertical position, the operator presses a button 24 to close the circuit of a battery 28 through a contact 22 to allow the charging current to energize a relay winding 25 such that all the relay contacts remain in the switchedover position. When the first pulse reaches the magnet winding 15 via the contact 18, the armature 11 is attracted and the plunger 10 releases the housing 1 for oscillation. Before the housing 1 has reached a zero position in the course of this movement, the winding of the brake release mechanism is again deenergized and the housing 1 is firmly braked again. When the plunger 10 again releases during the next pulse the housing 1 continues its movement and approaches the zero position in successively smaller steps.
Patent GB-193447-A (GB)
Title: Improvements in and relating to automatic accompaniment apparatus for harmoniums
IPC: G10B3/10
Filed: 1921-09-20
Abstract: 193,447. Suarez, M. D. Sept. 20, 1921. Reed organs; stop actions.-A harmonium is provided with two extra series of reeds to give an automatic accompaniment in major or minor thirds. Each key operates a valve which controls a reed in each of the accompaniment series, in addition to operating the valve of the ordinarv reed of the note. The reed of the major or minor third is sounded according to whether the double spring-controlled flap-valves 10, 11, mounted on bars 12 pivoted at 13, cover the apertures 8 or 9 of the two sets of reeds. The valves 10, 11 of the right and left hand sides of the chest, corresponding to the right and left hand parts of the keyboard, are operated separately by two pedals having connections 15 to the valves, but they may be coupled to operate simultaneously by lateral movement of the left hand bars 12 by a lever.
Patent GB-1418702-A (GB)
Title: Moulding compositions and a process for their production
IPC: F21V3/04
Filed: 1973-05-24
Abstract: 1418702 Translucent moulding compositions and their production ROHM GmbH 24 May 1973 [26 May 1972] 24960/73 Heading C3P A moulding composition for the production of translucent articles comprises a methyl methacrylate homopolymer or copolymer containing a major proportion of methyl methacrylate units, having dispersed therein finely divided non-agglomerated (i.e. homogeneous) cross-linked or cross-linkable particles of a styrene polymer, of sufficient size to provide translucency in the moulded products. The compositions are produced by dissolution of a cross-linkable styrene polymer in monomeric methyl methacrylate alone or with minor proportions of other monomer(s), and polymerization of said mixture, whereby the styrene polymer is precipitated in finely divided form in the forming acrylic polymer, and thereafter optionally cross-linking the styrene polymer. The styrene polymer may be cross-linkable by virtue of the presence of units of an N-alkoxymethyl acrylamide and/or an N-alkoxy methyl methacrylamide. The N-methoxy-, -ethoxy- and -butoxy-, derivatives are specified. Alternative cross-linkable units are units of a glycidyl acrylate or -methacrylate, acrylic or methacrylic acid and hydroxyalkyl esters thereof, maleic anhydride, and ethylene glycol monoacrylate or -methacrylate. In an example, styrene N - methoxymethylmethacrylamide and methacrylamide are copolymerized to produce the cross-linkable styrene copolymer. This is dissolved in a methylmethacrylate methyl acrylate mixture, and the whole is bulk polymerized.
Patent GB-1286206-A (GB)
Title: Epoxy resin compositions
IPC: C08G59/72
Filed: 1970-05-22
Abstract: 1286206 Curing epoxy resins HITACHI Ltd and HITACHI CHEMICAL CO Ltd 22 May 1970 [26 May 1969 (2)] 25040/70 Heading C3B A curable composition comprises an epoxy resin, a polycarboxylic acid anhydride and a curing promoter of formula in which M is P or As; R 1  to R 4  which may be the same or different are each alkyl, hydroxyethyl, alkenyl or aryl; R 5  is alkyl, alkenyl or aryl or when M is M and R 1 , R 2 , R 3  and R 4  are Ph, R 4  is 2-hydroxyethyl or Examples of suitable anhydrides are methylendomethylenetetrahydrophthalic, hexa- or tetrahydrophthalic, dodecenyl - succinic, phthalic or trimellitic anhydrides. Examples of I are tetraphenylphosphonium tetraphenylborate, (n - butyl)triphenylphosphonium tetraphenylborate, (ethyl)triphenylphosphonium tetraphenylborate, tetra - n - butylphosphonium borate, p - xylene - bis - (triphenylphosphonium) tetraphenylborate and tetraphenylarsonium tetraphenylborate. The composition may also comprise a filler, e.g. 5-60% by volume of the total composition of a filler having a granularity of <44 Á and 10-70% by volume of a filler having granularity >64 Á. I may be present at 0À1-10 parts by wt. per 100 parts by wt. of epoxy resin. The anhydride may be present at 0À001-1À5 moles per epoxide equivalent of the epoxy resin. Uses.-Electrical insulation.
Patent GB-779690-A (GB)
Title: Improvements in or relating to supersonic devices for measuring workpieces
IPC: G01B17/02
Filed: 1955-08-31
Abstract: 779,690. Ultrasonic gauging. SIEMENSREINIGER-WERKE AKT.-GES. Aug. 31, 1955 [Aug. 31, 1954], No. 25046/55. Class 118 (2). Apparatus for determining the thickness of workpieces by multiple echoes of an ultrasonic pulse comprises a pulse transmitter, a pulse receiver, and an automatic device for measuring the time within which a predetermined constant number of echo pulses are received. A rectangular pulse generator 7 provides synchronizing pulses 20 (Fig. 2), the leading edge 21 of a pulse causing a transmitter 2 to generate a pulse 22 which is fed to transducer 3. Echo pulses 23 from the workpiece 4 are received by receiver 5, amplified, limited and demodulated to produce a series of rectangular pulses 24. The initial large pulse 25 is due to direct reception and may interfere with the first one or two echo pulses, hence the rear edge 26 of a pulse 20 is used to activate a step-down counter 6 which proceeds to count the next light echo pulses. The first of these eight echo pulses initiates a rectangular pulse 27 in a generator 7 and the eighth pulse terminates it. This rectangular pulse 27 feeds a sawtooth voltage generator 8 which produces a sawtooth 28 having the same base length as pulse 27 and hence its peak voltage is dependent upon the time taken to receive the eight echo pulses. A peak voltage valve voltmeter 9 may therefore be calibrated directly in thickness. The varying velocity of sound in different workpiece materials may be allowed for by adjusting the generator 8 to give a different slope to the sawtooth 28. In a modification (Fig. 3, not shown), the rear edge of the synchronizing pulse besides activating a counter also triggers an adjustable calibrated pulse generator, the pulses from which are passed to a second counter. The eighth pulses from both the echo pulse counter and the calibrated pulse counter are fed to a coincidence amplifier which operates a relay to signal when coincidence occurs. The calibrated pulse generator frequency is adjusted to the desired thickness of workpiece and the signal indicates automatically if the actual thickness of the workpiece agrees with the desired value. Reference has been directed by the Comptroller to Specification 708,413.
Patent GB-413520-A (GB)
Title: Piston for internal combustion engines
IPC: F02F3/00
Filed: 1933-09-11
Abstract: 413,520. Pistons. BORRMANN, W., Badersleben, and AHRENS, F., Vogelsdorf, Oschersleben, both in Germany. Sept. 11, 1933, No. 25144. [Class 122 (i).] A piston comprises a head d carrying the rings f and a skirt b carrying the gudgeon-pin bearings a. The bearings a extend above the level of the skirt at c and are formed with steps e of conical form. The interior of the head d is provided with circumferential grooves to fit upon the steps e. Screwed spindles g are attached to plates j bent at right angles at k and cast in the gudgeon pin bosses. Nuts h secure the head to the skirt.
Patent GB-345918-A (GB)
Title: Improvements in or relating to duplex radio communication
IPC: H01Q1/52
Filed: 1930-08-23
Abstract: 345,918. Duplex wireless signalling. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Aug. 23, 1930, No. 25240. Convention date, Sept. 16, 1929. [Class 40 (v).] Duplex signalling particularly on short waves is effected on a single wave-length by employing an aerial one wavelength long and by coupling the receiver to the aerial at a point which is a nodal point for the oscillations fed by the transmitting generator. Fig. 1 shows the current distribution along a straight aerial when excited by received waves a and by a transmitting oscillator b, the wavelength in both cases being equal to the aerial length. Transmitter oscillations, fed inductively from S at a point a quarter wave-length from one end of the aerial, create a current node at the midpoint of the aerial, and a receiver E coupled inductively at that point will be affected by received oscillations, but not by the transmitter. If capacity coupling is employed, the transmitter coupling is located at a voltage antinode, e.g. at one end of the aerial ; the receiver being either coupled inductively at the mid-point, or coupled by capacity at a quarter wave-length from one end.