baber/WOPTO huggingface dataset:
Patent GB-766909-A (GB)
Title: Improvements in spectrographs and monochromators
Inventor: MENZIES ALEXANDER CHARLES GEOR
IPC: G01J3/18
Filed: 1954-07-02
Abstract: 766,909. Spectroscopic apparatus. HILGER & WATTS, Ltd. June 29, 1955 [July 2, 1954], No. 19502/54. Class 97(1) In a spectrograph or monochromator in which the dispersive element, when used with the slit alone, produces superimposed spectra of different orders; a second dispersive means is placed behind the slit so that the spectra are presented separately and individually. Preferably, the dispersive element and the dispersive means disperse the light in directions which are substantially at right-angles so that the spectra 9, 10, 11 of successive orders appear side by side. In the spectrograph or monochromator shown in Fig. 2, the slit 2 is placed at the focus of a concave mirror 3 and a plane reflection grating 4 having rulings parallel to the direction of the slit may be placed nearer to the mirror 3 than the focal distance. A thin prism 6 separates the spectra 9, 10, 11 which may be formed on a photographic plate (not shown). Alternatively, a larger form of prism 6 may be interposed between the mirror 3 and the photographic plate. In the monochromator shown in Fig. 3, the first order spectrum is given by light which has only passed once into the prism 14 and the second order by light which has passed twice. A prism 20 may be interposed in the light beam in either of the positions shown to separate the spectra.
Patent GB-596556-A (GB)
Title: Improvements relating to laminated magnetic cores
IPC: H01F27/25
Filed: 1945-07-30
Abstract: 596,556. Transformers. ENGLISH ELECTRIC CO., Ltd., and CHADWICK, A. T. July 30, 1945, No. 19515. [Class 38 (ii)] A three - phase magnetic core comprises two similar coils 1, 1, each formed by winding strip material and each having a straight side cut longitudinally to halve its thickness, the two cut sides being placed together at 2 to form a core with three similar limbs. The turns may be bonded by material such as synthetic resin applied before or after winding, and cuts 3 are made to insert the windings.
Patent GB-487462-A (GB)
Title: Improvements in and relating to vapour electric discharge devices
IPC: H01J13/48
Filed: 1937-07-14
Abstract: 487,462. Metal - vapour lamps. BRITISH THOMSON-HOUSTON CO., Ltd. July 14, 1937, No. 19544. Convention date, July 16, 1936. [Class 39 (i)] [Also in Group XXXV] In an electric discharge device of the type comprising a liquid pool cathode 3, Fig. 1, of mercury, gallium, sodium, cadmium, &c., an anode 2, a fixed ignition electrode 6 coacting with an anchoring electrode 4 of porous capillary material, such as described in Specification 481,078, and means for impressing a cyclically alternating potential between the cathode and the anode and ignition electrode, means are provided for making the ignition discharge of a non-oscillatory character and for regulating it in predetermined timed relation to the alternations of the main circuit. As shown in Fig. 3, the potential is impressed on the ignition electrode from a transformer 20 through a circuit including a resistance 23, a condenser C, and a resistance R, such that the inductance of the circuit is less than the product of the capacity of the condenser C and the square of the resistance R and also that the peak current in the spark exceeds approximately half an ampere. Fig. 3 shows an arrangement for modifying the characteristics of an alternating potential supplied from an input circuit 16 to a load connected at 17. The regulating system consists of two discharge devices 1, 1<1> in reverse arrangement. The transformer 20 is in circuit with a phase shifting transformer 19 of usual construction. The ignition electrode 6 is a strip with a tapering edge directed to the anchoring electrode. In a modification the resistance 23 may be replaced by a thermionic rectifier.
Patent GB-461075-A (GB)
Title: Improvements in or relating to apparatus for weighing filamentary bodies such as threads
IPC: D01H13/32
Filed: 1935-07-09
Abstract: 461,075. Weighing threads &c. ORLING, C. W., ORLING, A., and CREED, F. G. July 9, 1935, Nos. 19558/35 and 17544/36. [Class 143] [Also in Group IX] Apparatus for weighing filamentary bodies such as threads comprises a sensitive torsion balance, gripping means for gripping the length of thread to be weighed and means for recording the deflection of the balance beam. As shown in Fig. 1, wherein the thread 16 is passed from a freely rotatable wind-off bobbin 17 to a take-up bobbin 18 driven through a clutch 31, the weighing and recording operations are effected automatically and periodically under the control of cams 35, 36, 37. The cam 35 uncouples the clutch 31 to stop the take-up bobbin 18 ; the cam 37 actuates thread-gripping devices 21, 23 so as to grip a length of thread and by swinging inwards cause the gripped length to sag on to a balance beam 4 supported on a torsion element 3 ; and the cam 36 rocks a beamcarrying frame 1 about its pivots 2 to return the deflected beam to its normal position on a contact 15. The angular extent of this return movement is a measure of the weight of the thread. On closing the contact 15, a relay 10 is energized and its armature 11 strikes an upstanding blade 8 on the frame 1 and causes a type mark 8<1> to mark a paper strip 9 fed. forward by a pawl 48 on the armature. Tension devices 20, 20<1> and a spreader 19 are provided. Instead of a type mark 8<1>, the blade 8 may carry a pen in the form of a bent capillary tube 49, Fig. 2, dipping into an ink-well 50 mounted on the blade. The pen is mounted on a pivot 52 and during movement of the beam-carrying frame 1 traces a line across the tape but when struck by the armature 13 abruptly deflects the line. According to the first Provisional Specification, the balance beam is returned to its electric contact by sending an electric current through copper coils fixed to the beam and situated in a magnetic field.
Patent GB-646384-A (GB)
Title: New or improved exhaust silencer for internal combustion engines
IPC: F01N13/20
Filed: 1947-07-22
Abstract: 646,384. Exhaust silencers. SMITH, E. July 22, 1947, No. 19560. [Class 7(ii)] An exhaust silencer comprises a casing a with a series of baffles b, d, f, g having central coned portions b<SP>1</SP>, d<SP>1</SP>, f<SP>1</SP>, g<SP>1</SP>, the outlets b<SP>2</SP>-g<SP>2</SP> of which increase in diameter from the inlet to the outlet end of the casing, and a series of angularly spaced Venturi passages c surrounds the cone portions b<SP>1</SP>, d<SP>1</SP>, f<SP>1</SP>. Air is drawn in through perforations i and heated in passing through a tube h surrounding the casing a, the cone g<SP>1</SP> acting as an injector to draw the air through holes j. The silencer is connected to a fishtail outlet m in which is located a plate n with passages n<SP>1</SP> each surrounded by a short tube p with orifices p<SP>1</SP> through which air, entering through orifices m<SP>1</SP>, is drawn by the action of the gases flowing through the passages n<SP>1</SP>.
Patent GB-937064-A (GB)
Title: Improvements in and relating to apparatus for collecting and loading refuse
Inventor: ALLCHURCH SIDNEY
IPC: B65F3/08
Filed: 1959-06-08
Abstract: 937,064. Tipping refuse bins into vehicles. SHEFFLEX Ltd. Sept. 6, 1960 [June 8, 1959], No. 19581/59. Class 78 (4). The hoisting gear of a refuse vehicle for raising and lowering a bin-tipping cradle 35 is mounted on the roof of the vehicle and comprises purchase 19, 24 operated by an hydraulic ram 11. In the construction illustrated, a purchase 24, 19 is provided on each side of the vehicle and a single cable 36 passes from the purchase on one side through a tubular member 38 on the cradle 35 to the purchase on the other side. The moving sheave blocks 18 are joined by a transverse member 16 to which the ram 11, which is pivoted at its remote end 13, is connected. Material in the body of the vehicle is compacted by a member 34 carried by arms 31 depending through slots in the roof of the vehicle from pivots 33 on a carriage 28 fixed to the moving blocks 18 and guided by rollers 20, 29, engaging tracks 21, 30. When a bin 27 has been raised to the tipping position the position of the carriage 28 is such that the arms 31 bear on stops 40 so that the member 34 is disposed to form a shoot receiving the material from the bin. Pivotal movement of the arms 31 on their hinges 33 is limited by stops 41 so that, on forward movement of the carriage 28, the arms 31 are held in a position near the vertical. The hoisting gear may be carried by a frame and movably mounted on the roof.
Patent GB-1364672-A (GB)
Title: Penicillins
IPC: A61P31/04
Filed: 1971-06-09
Abstract: 1364672 Penicillin esters and bromophthalide BEECHAM GROUP Ltd 23 June 1972 [9 June 1971] 19604/71 Headings C2A and C2C The novel phthalidyl ester of 6 - [D(-) - α- aminophenylacetamido] penicillanic acid of Formula I: and pharmaceutically acceptable acid addition salts thereof, e.g. salts with hydrochloric acid and 3 - (2<SP>1</SP> - chloro - 6<SP>1</SP> - fluorophenyl) - 5 - methyl- 4-isoxazolyl - penicillin, may be prepared (1) by reacting 6-aminopenicillanic acid phthalide ester or a silyl derivative thereof with a reactive N-acylating derivative of the (-) isomer of a compound of Formula II: wherein X is an amino group, a protected amino group or a group which is convertible to an amino group, removing the silyl group, if present, by hydrolysis or alcoholysis, and if X is not an amino group, converting it to such a group under neutral or acid conditions or (2) by reacting a compound of Formula V: or a reactive esterifying derivative thereof, in which X is as above defined, with a compound of Formula VI: or a reactive esterifying derivative thereof, and, if X is not an amino group, subsequently converting it to an amino group under neutral or acid conditions. The novel 6-aminopenicillanic acid phthalidyl ester may be prepared by coupling 6-aminopenicillanic acid with 3-bromophthalide or by coupling an N-protected derivative of 6-aminopenicillanic acid with 3-bromophthalide and thereafter removing the protecting group. The phthalidyl esters of 6-[D(-)α-aminophenylacetamido] penicillanic acid having an N- protected amino group or a group convertible to an amino group are also stated to be novel. 3-Bromo-phthalide is prepared by reacting phthalide with N-bromosuccinimide. Pharmaceutical compositions comprise the phthalidyl ester of 6-[D(-)α-aminophenylacetamido] penicillanic acid or a pharmaceutically acceptable acid addition salt thereof and a carrier. The compositions may be administered orally in the form of powders, syrups, tablets, capsules or pills.
Patent GB-187042-A (GB)
Title: An improved method of and means for compensating for wear in driving chains
IPC: F16G13/02
Filed: 1921-07-21
Abstract: 187,042. Nuttall, P. July 21, 1921. Rivet and bush extractors.-The pitch of worn chains is restored by turning the pins and bushes to bring unworn parts thereof into bearing contact. A roller chain is secured upon a support by teeth 2, 3, 4 engaging between the rollers, and by a wedge pin 6 inserted through an aperture in the tooth 3. The narrow ends of stepped plungers 16 are pressed against two chain studs by a screw 13 to force them out of one of the outer link plates. These plungers are then withdrawn and corresponding plungers 18 actuated from the opposite side of the chain to free the second outer link plate. The plungers abut against plates 24 slidable upon rods 11 which carry slides 9, 10 wherein the plungers are slidable and rotatable. The slides can be pressed towards the chain by reduced ends 14 of the screws 13, and the plates 24 are similarly actuated by the main body of the screws. After freeing the outer link plates, the studs are held between the opposing plungers and these are turned together with the studs by handles 21, 23. Packing pieces 27, 28 are then removed from behind the plate 24 of the slide 10, which allows this to be advanced, without moving the plungers, to replace one outer plate upon the turned studs. These connected studs and link plate are then removed from the chain, and the adjacent inner link plates are operated upon similarly, but by the wider parts of the plungers, to remove, turn, and replace the bushes. The connected studs and outer link plate are then replaced, and the remaining outer link plate forced on to the studs. To enable " silent " chains to be operated upon, they are secured by screws 52 upon holders 47 shaped as shown in Fig. 7. Interchangeable chain-holders may be clamped between the opposing halves 7, 8 of the bed of the apparatus.
Patent GB-1488078-A (GB)
Title: Method of manufacturing a discharge lamp electrode
IPC: H01J9/02
Filed: 1975-05-09
Abstract: 1488078 Isostatic moulding PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 May 1975 [13 May 1974] 19631/75 Heading B5A [Also in Division H1] One or both electrodes of a high pressure discharge lamp filled, e.g. with Hg and Xe, is/are made, e.g. of W or TaC or a mixture thereof possibly with an activator, e.g. ThO 2 , to reduce the work function, and is/are isostatically pressed. The powdered constituents are loaded with vibration into elastomer bag 5, premoulded on a jig to the required electrode shape, a deformable component such as a cork block 7 being added before the mouth of the bag is tied off under vacuum. The bag is immersed in liquid 4, e.g. petrol, in a press die 1 in which hydrostatic pressure is applied by ram 3 on all surfaces of the bag. After compaction the powder, if W, is sintered above 2000 C. in H 2 .
Patent GB-381246-A (GB)
Title: Improvements in or relating to boxes or containers for cigarettes, matches, or othersmall articles
IPC: A24F15/12
Filed: 1932-05-02
Abstract: 381,246. Cases for cigarettes &c. GAUNT, C. F., Warstone Parade Works, Birmingham. May 2, 1932, No. 19726/31. [Class 18.] A case or box for cigarettes &c. comprises a body portion 1 closed by a hinged lid 13 and an internal tray 22 carrying the articles, the tray being projected from the portion 1 for access to the articles by a spring 24 or manually through a finger hole 28 and being restored to its original position as the lid is closed by a pair of spaced cams or projections 27 on the interior of the lid which engage a part on or of the tray. The lid is held closed by a pin 21 thereon engaging a hole 20 in a lip 19 on the body 1 and, when released, the lid is opened by a spring 17; in its closed position the lid abuts against a beading 18 extending around the front and ends of the body 1. The body is formed of two similar dished parts 2, 3 having spaced and interengaging tubular lugs 5, 7 at the side edges locked together by wire rods passing through the lugs and the lower edges of the body may be similarly secured together or by lugs 11 on the one part doubled over lugs 12 on the other part : the side edges may be connected together by interengaging and doubled-over lugs. The tray 22 may have a central partition 23 and the spring 24 may be attached to the tray by passing it through a pair of spaced transverse incisions 25 in the bottom thereof. The cams or projections 27 may engage turned-out projections 26 on the sides of the tray and spring means may be provided to prevent the tray shaking in the body part. Specification 362,031 is referred to.
Patent GB-516648-A (GB)
Title: Improvements in or relating to remote control systems
IPC: H02J13/00
Filed: 1938-07-04
Abstract: 516,648. Electric control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 4, 1938, No. 19738. Convention date, July 3, 1937. [Class 40 (i)] Receivers for responding to control frequencies on A.C. supply mains comprise gas discharge tubes having an anode and two other electrodes, one being connected to the junction of the elements of a series-tuned shunt on the mains and the other to a capacity or resistance polarizing potentiometer so that the presence of control frequency on the first causes ionization. The transmitter may be a tuned valve oscillator, the anode being fed,from the A.C. mains so that superimposition occurs of control frequency, say on +ve half-cycles, switch being provided to reverse the connection to provide superimposition an - ve half-cycles. Different receivers are correspondingly connected. High frequency currents from the oscillator O pass over supply lines to the remote point where the circuit 25, 26 is tuned to the frequency of the superimposed current. Upon switch 23 being put in the upper position, oscillations will be generated during the half-cycle when line 1 is positive and if the combined voltages are sufficient tube 24 will flash and relay 30 operate to complete the circuit for outlet 29. Otherwise, the potential between the subsidiary electrodes is adjusted, using the capacity potentiometer 27, 28, to be just below flashing potential so that the superimposed voltage is sufficient to start a discharge between them, when the main discharge will commence. As tube 24 will only operate when anode A is positive, it is unaffected when switch 23 is in the position shown, tube 34 and its associated circuits then being operative. In a modification, Fig. 2 (not shown), a second oscillator operating at a different frequency is utilised controlling two further outlets, the combination of oscillators being used to control four further outlets by combinations of two relays, each relay being connected across one of the first four outlets. Specification 246,466, [Class 40 (i)], is referred to.
Patent GB-867704-A (GB)
Title: Improvements in drawbenches
IPC: B21C1/32
Filed: 1959-06-09
Abstract: 867,704. Drawing; bars and tubes. COMPAGNIE FRANCAISE DES METAUX. June 9, 1959 [June 25, 1958], No. 19743/59. Class 83(4). A draw-bench comprises a fixed die carrier 1<SP>1</SP> with at least two dies 21, 22 of decreasing dimensions, a drawing carriage 4<SP>1</SP> with gripping members 10<SP>1</SP> for the work, a device arranged on each side of the bench for receiving the work, supporting-means for the work to be drawn, said supporting means being arranged in tiers and facilitating the engagement of the work in the dies, one such means being adapted to receive a workpiece directly taken from one of the receiving devices and another such means being adapted to receive a workpiece passing out of one of the dies. Tubes of diameter D accommodated in a receiving device or cradle 141 are passed successively first through the die 21 to effect a reduction to diameter D 1  and then through the die 22 for reduction to a diameter D 2 , each tube following the path indicated at f<SP>1</SP> in Fig. 2. After the cradle 141 is empty the dies are changed and the tubes further drawn down in passing back from the cradle 17<SP>1</SP> to the cradle 14<SP>1</SP> on a similar path. Mandrels 8<SP>1</SP> and 9<SP>1</SP> are provided for supporting and engaging the work with the dies each mandrel being capable of pivoting about one end in a horizontal plane through an angle α<SP>1</SP> on either side of the die axis. Two mandrels 8<SP>1</SP> and two mandrels 9<SP>1</SP> are provided so that one each of the mandrels 81, 91 may receive a tube while a preceding tube is still being drawn, mandrel 8<SP>1</SP> receiving a tube D from the cradle 141 while the mandrel 91 receives a tube of diameter D, after its passage through the die 21. Skid arms 16<SP>1</SP> are changed over when the dies are changed. A conventional drawbench for drawing a pair of tubes simultaneously to the same diameter is also described.
Patent GB-1169265-A (GB)
Title: Improvements in or relating to comparison circuit arrangements
Inventor: HUBBARD WILLIAM MARSHALL
IPC: H03K5/24
Filed: 1967-04-28
Abstract: 1,169,265. Signal comparison circuits; pulse signalling. WESTERN ELECTRIC CO. Inc. 28 April, 1967 [29 April, 1966; 28 March, 1967], No. 19749/67. Headings H3T and H4L. In a comparison circuit having two negative resistance diodes 10, 11, e.g. tunnel diodes, with the anode of one connected to the cathode of the other to form an output junction 18 and means for forward biasing each of the diodes, the polarity of the output at the junction 18 of the two diodes is dependent on which of two signals applied across the respective diodes is the greater. As shown the diodes are both forward biased at A (Fig. 2) by source 12. When timing pulses from 13 are applied to the diodes they become further forward biased at B so that if timing pulses and input signals from the wave guides 21 and 22 are applied simultaneously the input signal having the greater magnitude will cause either diode 10 or 11 to obtain the second voltage state at C. If diode 10 conducts the output 18 becomes positive and if diode 11 conducts the output becomes negative. The circuit may be used as a phase detector (Fig. 3, not shown), by dividing the input signal equally in a first hybrid junction (41) feeding one component via a delaying network (42) and phase shifter (43) and recombining with the other component in a further hybrid junction (44). The output from this junction forming the input signals to the diodes (48, 49) so that the output signal corresponds to the original modulating signal. Repeater (Fig. 4, not shown).-Signals from a transmission line (50) are fed via channel dropping filters (51), a down converter (52), limiter (53) and amplifier (54) to a detector circuit (55) of the above type. The modulating signal from the detector circuit is then fed to a phase modulator (56), up converter (57) and channel adding filters (58) to an output transmission line (59). In a modified comparison circuit (Fig. 5, not shown), the input signals to be compared are fed to the series connected diodes (60, 61) via the centre conductor of a pair of strip transmission lines. Each transmission line has a pair of outer conductors one of which (64) is common to both lines and is connected to the junction of the diodes to form the output and is coupled via a capacitor (70) to earth.
Patent GB-1433857-A (GB)
Title: Stainless steels
IPC: C22C38/58
Filed: 1974-05-06
Abstract: 1433857 Stainless steel NIPPON STEEL CORP 6 May 1974 [4 May 1973] 19778/74 Heading C7A A stainless steel of composition:- The steel may additionally contain 0À1 to 4% Cu, 0À1 to 2% Nb and 0À001 to 0À2% Boron and may be prepared using a converter or electric furnace and vacuum degassing. The calcium and aluminium constituents may be added direct to the melt after slag removal or may be added to the molten steel contained in the ingot mould.
Patent GB-837882-A (GB)
Title: Improvements in or relating to apparatus for loading root crops
IPC: A01D51/00
Filed: 1956-06-27
Abstract: 837,882. Loading apparatus for root crops. OVERUMS BRUK A.B. June 27, 1956 [Sept. 22, 1955], No. 19825/56. Class 78 (1). A loading apparatus for root crops has its loading means 17 mounted on an endless conveyer 5 which is disposed transversely of the direction of movement of the loading apparatus so that, as the loading apparatus advances, crops are discharged up the inclined plane 3. As shown, frame 1 carries ramp 3 and is supported by a wheel 23 and is pulled by a tractor. The frame carries shafts 7 carrying sprockets 6 around which are trained conveyer chains carrying prongs 17 and pegs 18. The chains are driven from shaft 14 by the tractor so that, as the tractor moves forward (i.e. into the paper), the prongs 17 and pegs 18 move the crops to the left up ramp 3 on to a truck.