baber/WOPTO huggingface dataset:
Patent GB-1121790-A (GB)
Title: Parametric mixing circuit
IPC: H03D9/06
Filed: 1967-07-21
Abstract: 1,121,790. Suppressed carrier amplitude modulation; parametric up-converters. INTERNATIONAL STANDARD ELECTRIC CORP. 21 July, 1967 [28 July, 1966], No. 33574/67. Headings H3B and H3R. A circuit for use as a balanced modulator or as an up-converter, comprises a pair of transistors T 1  and T 2  supplied in push-pull with a modulation or other signal W s  and acting as variable capacitances coupled by respective capacitors C 1  and C 2  to ports of a hybrid ring to which the carrier frequency W 0  is supplied, the output being derived at an output port C situated so that the carrier is suppressed in the output. The signal W s  is supplied to the emitters of the transistors through transformer Tr and networks N 1  and N 2  which allow a wide band signal input, the transistors being biased so that the collector-base depletion layer capacitance varies in response to the amplitude of the signal input; the bases of the transistors are earthed, and mixing takes place across the collector-base capacitances. The operating frequency may be higher than the transmit frequency of the transistors.
Patent GB-356567-A (GB)
Title: Improvements in spring driven toy locomotives
IPC: A63H29/04
Filed: 1930-11-08
Abstract: 356,567. Toy locomotives. HORNBY, F., 236, Binns Road, Old Swan, Liverpool. Nov. 8, 1930, No. 33659. [Class 132 (iii).] The second wheel of the spring-driven clockwork train of a toy locomotive is carried upon a stub axle mounted in one side plate only of the movement, allowing distension of the spring past this axle whereby increased travel of the toy is possible. The driving mechanism is carried in a casing comprising side-plates 2 and a centre-plate 3, held together by bending over the tips 14 of lugs 12 on the plate 3, Figs. 3 and 4, after their insertion into slots 13 in plates 2. This casing is removable as a whole and is normally attached to the locobedplate 15, Fig. 1, by notches 16, Fig. 4, engaging the plate 15, a lip 19, at the other end of the casing, being held by lugs 21 of a yoke piece 20 engaging slots in plate 15. The driving spring 1, Figs. 1 and 2, is connected to an element 23, Fig. 9, fixed to the winding shaft 6 by means of square holes in the discs 24. The left-hand disc 24, Fig. 9, has projections 26, Figs. 7 and 9, which normally engage shoulders a of a ratchet disc 28 also fixed to the shaft 6. During winding of the spring 1, the bent-over tips 30 of the resilient arms 18, Fig. 7, pass over the holes 31 in the driving- wheel 7. Thus, when the tensioned spring drives the train, the wheel 7 is rotated by the tips 30 engaging holes 31, the ratchet disc 28 being driven partly by the projections 26 abutting the shoulders a, and partly through the shaft 6. The intermediate wheel 9 carried on a stub axle 10, Fig. 2, is driven by a pinion 8, and for forward motion of the toy drives the track wheels 5 through gear wheels 37, 36. To reverse, a lever 40 is raised rocking a bracket 39, carrying the gear wheels 37, 38, to disengage the former, the drive now being by way of wheels 9, 41, 38, 37. Starting and stopping of the locomotive is effected by a lever 32 pivoted at 33, a jaw 34 thereon acting as a brake on a pinion 35 geared to the wheel train.
Patent GB-1034467-A (GB)
Title: Improvements in or relating to servo systems incorporating thermal transducers
IPC: G05B6/02
Filed: 1963-08-27
Abstract: 1,034,467. Heat sensitive devices. SIEMENS & HALSKE A.G. Aug. 27, 1963 [Aug. 28, 1962], No. 33833/63. Heading H1K. [Also in Division G3] A heat sensitive device is arranged to be in good thermal contact with a first body and spaced from a second body of larger thermal capacity, both of which bodies are heated, the rise in temperature of the device being largely determined by the first body and the cooling thereof being largely determined by the second body. More than one body of the second type may be used. As shown, a thermistor or wound resistance thermometer 1 has a heating element 2 wound around it, the whole being enclosed, if necessary in a thermally conducting potting compound. The assembly is then held by insulating discs 8 within a metal former 4 carrying heating coils 5, 6. In operation the coils 2, 5 and 6 are energized simultaneously, but the rise in temperature of the element 1 is determined by the coil 2 with which it is in contact. When the current is switched off, however, the rate of cooling is controlled by the presence of the hot body 5. The rate of cooling may be adjusted by the amount of heat supplied via the coil 5. In order to overcome the " thermal inertia " of the coils 5, 6 these may be provided with heating power which is initially large but falls off towards the end of the heating period. The application of thermal delay devices of this type to a feed-back circuit in a control system for a motor controlling the fuel feed valve for a furnace is described (see Division G3].
Patent GB-344475-A (GB)
Title: Improved process for projecting photographs or cinematographic films in colour
IPC: G03B33/00
Filed: 1929-11-06
Abstract: 344,475. Projection screens. BASSO, E., 7, Strada di Chieri, Turin, Italy. Nov. 6, 1929, No. 33837. Convention date, Nov. 19, 1928. [Class 97 (i).] Monochromatic images on slides or kinematograph films are projected on to a screen which, with the object of producing projected images in colours, has a layer formed by a uniform mixture of fine particles of transparent material separately coloured in red, green, and blue, or in other complementary colours, the layer being applied to a black background. The particles may consist of glass, celluloid, &c.
Patent GB-467025-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J61/34
Filed: 1935-12-09
Abstract: 467,025. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and HARRIS, N. L. Dec. 9, 1935, No. 34064. [Class 39 (i)] In lamps, more particularly those having a U-shaped discharge tube 1, wherein an openended sheath 14 is interposed between the discharge tube and an outer closed envelope 2, the sheath is supported from a foot tube 8 on the envelope either by wires sealed in the foot tube 8 or from a band 11 surrounding that tube. Springs 15, 16, 17 space the sheath from the envelope and springs 18, 19, such as described in Specification 464,343, are used to hold the tube 1 within the sheath. In manufacture the inner discharge tube and sheath are first mounted on the foot-tube and then introduced into the envelope 2, the foot tube being afterwards sealed to the envelope.
Patent GB-325545-A (GB)
Title: Improvements in the production of half-tone blocks
IPC: B41M9/04
Filed: 1928-11-21
Abstract: 325,545. Bond, A. A., and Browne, Ltd., T. B. Nov. 21, 1928. Make-ready arrangements. - A half-tone block is rendered capable of printing on rough surfaces, with a fine screen if desired, by applying to the rear of a primary printing-plate, which has been etched to the maximum depth, a secondary plate bearing an etched duplicate of the design on the primary plate. The duplicate is formed by making a print from the original negative on a thin metal sheet as of copper or zinc, and etching this so that the high lights entirely disappear, The designs on the two plates having been brought into register, pressure is applied sufficient to raise all the shadow portions on the primary plate to the desired extent, leaving the high lights sunk. Specifications 5744/01; and 14508/01, [Class 101, Printing other than letterpress &c.], are referred to.
Patent GB-465580-A (GB)
Title: Improvements in the lubrication of crankshafts
IPC: F16C3/14
Filed: 1936-12-14
Abstract: 465,580. Crank shafts. GENERAL MOTORS CORPORATION. Dec. 14, 1936, No. 34269. Convention date, Dec. 21, 1935. Drawings to Specification. [Class 80 (ii)] In crank-shafts having journals of various sizes and containing oil passages leading through the crank-arms to the crank-pins, uniform lubrication is obtained by locating each passage at such a distance from the centre line of the shaft that the back pressures in all the journals are equal. The distance in question is obtained from the requirement that r<2>-R<2> shall be constant, where r is the radius of the journal and R is the radius at which the passage is drilled tangentially.
Patent GB-971532-A (GB)
Title: Improvements in or relating to maximum demand meter mechanisms
Inventor: GRIMM OLAF
IPC: G01R11/60
Filed: 1963-08-29
Abstract: 971, 532. Maximum demand meters. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Aug. 29, 1963, No. 34272/63. Heading G1K. Apparatus for indicating or recording the maximum electrical energy demand in a succession of measuring periods p contained within a reading-off period P comprises a drum 1 which under the control of timing mechanism is driven from a zero position by a meter through pinion 2 and returned to zero once in each period p, a storage disc 4 connected to the drum 1 through a slipping clutch 3 and a feeler 10 also under the control of the timing mechanism and adapted to enter a notch 5 whereby the disc 4 is blocked at the beginning of a period P but is advanced in accordance with the displacement of the drum 1 in the first period p and is not further advanced during the same period P unless a subsequent displacement of the drum 1 in a period p exceeds all earlier ones in the same period P. As shown in Fig. 1, at the beginning of a period P the lever 10 enters notch 5 and the clutch 3 slips while the meter drives the drum 1 in direction 13. At the end of period p the lever 10 frees the disc and the drive to drum 1 is disengaged and shaft 7 is turned in direction 15. When slot 8 encounters pawl 9 the drum 1 and disc 4 turn therewith and when drum 1 reaches zero position, the notch 5 in disc 4 is displaced in correspondence with the displacement previously attained by the drum 1. Upon the next run of the drum 1, the feeler 10 will initially strike the edge of disc 4, which thus remains unblocked, and the feeler 10 will only fall into the notch 5 if the drum is displaced further than in the first period p. If it is, then the difference will be added to the displacement stored by the disc for that period p. If the value registered by the drum 1 is printed at the end of each period p, the feeler 10 may also serve as printing lever. It will then also make a mark each time it falls into the notch 5 and so identify the maximum mean value. At the end of a reading-out period P, a bolt 12 is raised into the path of a stop 6 and the spindle 7 turned in direction 15 until both drum 1 and disc 4 are in the initial position shown; the bolt 12 is then lowered. In another embodiment Fig. 2 (not shown) another drum 17 is coupled to the drum 1 each time the feeler 10 falls into the notch 5 so that at the end of a period P the maximum consumption value can be read off the drum 17. In an arrangement Fig. 3 using a plurality of drums 1 with known transfer mechanism there between, their corresponding storage discs 4 are mounted on a separate spindle 21 and coupled through slipping clutches to pinions 22 meshing with those 2 attached to the drums 1.
Patent GB-1405519-A (GB)
Title: Triamcinolone derivative
IPC: C07J71/00
Filed: 1973-07-18
Abstract: 1405519 Medicines comprising steroids AMERICAN CYANAMID CO 18 July 1973 34289/73 Heading A5B [Also in Division C2] Topical antiinflammatory compositions comprise the steroid triamcinolone acetonide 21- valerate, a carrier, and optionally neomycin sulphate.
Patent GB-817324-A (GB)
Title: Improvements in or relating to devices having windows for transferring high frequency energy
Inventor: KREUCHEN KARL HEINZ
IPC: H01J17/04
Filed: 1954-11-27
Abstract: 817,324. Vitreous or ceramic-to-metal seals. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 4, 1955 [Nov. 27, 1954], No. 34446/54. Class 36. [Also in Groups XL (a) and XL (b)] The output window of a hermetically sealed H.F. device is sealed to the device at a position where there is no H.F. field. The output cavity of the device 10 (a klystron) is coupled by an iris 12 to a short length 14 of circular waveguide attached to a flange 13 of the klystron. The guide 14 terminates in flange 15 having an annular choke slot 16. A conical quartz, ceramic or sapphire window 17 is provided with a flange 18 the rim of which is joined to a cylindrical member 19 composed of several rings of glass forming a graded seal. The glass seal is attached to a metal ring 20 forming the edge of a bellows 21 brazed to the flange 13. On completion of the seal the device is heated to a temperature of e.g. 750‹ C., and evacuated. During evacuation the flange 18 of the window is sucked into close contact with the waveguide flange 15, this movement being taken up by the bellows 21. An external waveguide 22 having a flange 23 and choke slot 24 is aligned with the guide 14 and held in position by bolts 25. A modification is described (Fig. 2, not shown), in which the window is planar.
Patent GB-362636-A (GB)
Title: Improvements in and connected with the power unit and transmission system of motor vehicles
IPC: B60K5/02
Filed: 1930-11-15
Abstract: 362,636. Motor vehicles. NORTH, O D., 76, Elm Park Mansions, Park Walk, Chelsea. Nov. 15, 1930, No. 34458. [Classes 79 (ii), 79 (iii), and 79 (iv).] A power unit and transmission system of the type comprising a rear longitudinally-arranged engine 1 situated close to the middle of a driving shaft 4 having its ends directed towards the sides of the vehicle and driving rear road wheels 2, is characterized in that the driving shaft 4 is in advance of the wheel axles 7, these axles being articulated to the shaft 4 by a pair of rearwardly-directed arms or casings 8, and the engine shaft being arranged in the rear of the driving shaft in the space between the arms 8. In a modification the relative positions of the parts may be reversed so that the engine and driving wheels are in advance of the driving shaft. The shaft 4 is in two parts which may extend transversely as shown and drive the wheels through gearing enclosed in the casings 8, or they may be inclined and coupled directly to the wheel axles through bevel or other gearing. In the construction . shown in Figs. 1 and 2 the arms 8 and stays 9 are pivoted on an axle-like casing 3 enclosing the shaft 4. The engine drives the shaft 4 through a clutch 18, forwardly-extending shaft 10, change-speed gearing enclosed in a gear box 6, reducing gearing 14, 15, and differential gearing. Thus the engine and gear-box are on opposite sides of the shaft 4. In a modification the engine and gear-box are both at the rear of the shaft 4. The casing 3 may be dispensed with, the shaft parts 4 being universally-jointed, and the rear ends of the casings 8 being connected to the engine or chassis by pivoted stays.
Patent GB-1190311-A (GB)
Title: Method and Apparatus for forming Individual Portions of Fibrous Material
Inventor: FOCKE HEINZ
IPC: B65B1/34
Filed: 1968-07-19
Abstract: 1,190,311. Weighing apparatus. H. FOCKE. July 19, 1968 [July 20, 1967], No. 31478/68. Heading G1W. A batch of fibrous material of predetermined weight is formed by separating from a continuously advancing fleece 10 of the material a portion of weight less than the predetermined value then adding further material to bring the weight of the portion up to the predetermined weight. As shown, a belt type scales 11 is fed with a continuously advancing fleece 10 until the weight of fleece on the scales 11 is of a value somewhat less than the predetermined value. A parting device 15 is then operated and the fleece portion on the scales 11 is conveyed to a pan 36 of a second weighing apparatus 16. The apparatus 16 drives a metering device 17 corresponding to the amount by which the fleece portion is less than the predetermined weight so that a length of material of constant cross-sectional area and density is supplied to the pan 36 to bring the weight of material therein up to the predetermined value. The pan 36 is then tilted by a piston-cylinder arrangement 37 to discharge the weighed material. The metering device 17 comprises a wheel 19 which is provided with a peripheral groove 21 for the reception of material and which is rotatable about a stationary hub 26 having passages 25, 31 and 32 in communication with the groove 21 and air pressure or vacuum sources. The wheel 19 is controlled by the weighing apparatus 16 and operates to pick up material from a container 20 and convey the material in a strand of constant cross-sectional area and density to a discharge zone 27 above the pan 36. The air pressure and vacuum sources are so controlled that when the length of strand in the discharge zone is sufficient to correct the weight of the material in the pan the strand is discharged from the device 17 with the optional aid of a cutting device 29 and is directed to the pan 36.
Patent GB-521913-A (GB)
Title: Improvements in or relating to gyroscopes
IPC: G01C19/44
Filed: 1938-11-28
Abstract: 521,913. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Nov. 28, 1938, No. 34579. Convention date, Nov. 30, 1937. [Class 97 (iii)] A rotor spinning in a universally gimballed casing is erected by electromagnetic interaction between the casing and a pendulous member and means are provided for simultaneously caging the casing and pendulous member. In the gyro vertical shown, the rotor casing 2 pivots on a horizontal axis 3 in a ring 4, pivoting on a horizontal axis 5 in a ring 9. The latter pivots at 10 in the outer casing 1 and carries on pivots 12, normally aligned with the pivots 3, the pendulous member 11. The erecting means is of the form described in 492,670 and comprises an inductor ring 6 carried by a depending stem 29 on the casing 2 and a winding 8, providing a rotating magnetic field and carried by the pendulum 11. The caging means includes four fingers 17, each pivoted at one end 18 to a rotatable ring 15 and connected at the other end by a link 21 to a flange 16 on the casing 1. When the ring 15 is rotated by moving a knob 19 from the dotted line position to the full line position, Fig. 4, one pair of fingers 17 move inwards to engage abutments 23 on a cylindrical part 11<SP>1</SP> of the pendulum and the other pair of fingers 17 move inwards to engage the end portions 24 of clamping jaws 25, 25'. The latter are thereupon caused to slide inwards on the top of the cylindrical part 11' against the action of the springs 30 and lock the depending stem of the casing 2 as well as the pendulum. The current is supplied to the rotor driving motor through the wires 35, 35' and the spiral springs 37, 37'. In a modification the rotor is driven by a D.C. motor as described in Specification 504,963, the inductor ring 6 is carried by the pendulum and the winding 8 is carried by the casing 2 and supplied with the phase current tapped off from the armature of the rotor driving motor. Specification 492,670 also is referred to.
Patent GB-654966-A (GB)
Title: Improvements in or relating to manoeuvring device
IPC: B66C13/56
Filed: 1947-12-30
Abstract: 654,966. Cranes &c. ATLUNG, G. P. B. Dec. 30, 1947, No. 34645. [Class 78 (iv)] [Also in Groups XXI, XXXI and XXXIII] A manoeuvring device for cranes, transport trucks or vessels, excavators and similar machines comprises a cabin containing a steering unit, means for rotating the operator about the steering unit, and displaceable members surrounding or partly surrounding the steering unit which transmit the displacements to the various operating devices of the driving plant. In one construction, Fig. 1, the cabin 1 is circular and in the floor is provided a bearing 4 carrying an upward extension 5 which houses the steering column 6 and is provided with foot-rests 8. Shoulders 11 of bearing 4 are provided with a ball race 10 for the innermost ring 12 of a number of concentric rings 12, 14, 15, 16. The ring 12 carries seat 13 for the operator. The remaining rings 14, 15, 16 are each supported by compression springs 17, 18, 19 and bear upon a pedal 20, 21, 22 respectively for operating a brake, clutch and gas regulator respectively of the machine to be operated. The seat is revolved to any desired position by pressing with the feet on the foot pedals or grasping a hand rail 9 around the wall. A second construction is shown in plan view, Fig. 2, in which the rings are replaced by U- shaped members 23, 24, 25 which oscillate on shafts 26, this construction being suitable where only half a revolution of the seat is required.
Patent GB-1134968-A (GB)
Title: Polyvinyl alcohol composition
IPC: C08L29/04
Filed: 1967-07-27
Abstract: 1,134,968. Polyvinyl alcohol filaments. KURASHIKI RAYON K.K. 27 July, 1967 [5 Aug., 1966; 11 Oct., 1966], No. 34657/67. Heading B5B. [Also in Division C3] Films and fibres are made from a polyvinyl alcohol composition consisting of (a) 0.1 to 80% by weight of polyvinyl alcohol having a polymerization degree of between 150 and 3000, a saponification degree of at least 95 mol per cent and as terminal group a group selected from R-CH 2 - and R-CH 2 -S-, where R is a saturated non-cyclic aliphatic hydrocarbon group having 5-29 carbon atoms, and R<SP>1</SP> is hydrogen, an alkyl group having 1 to 3 carbon atoms, sodium or potassium, and (b) 99.9 to 20% by weight of polyvinyl alcohol free from said terminal groups and having a saponification degree of at least 95 mol per cent. In Example 7 a composition is spun using a spinning machine having 100 orifices and a coagulating bath consisting of a first bath of Glauber's salt aqueous solution at 40‹ C. and a second bath of Glauber's salt aqueous solution at 80‹ C.
Patent GB-1281300-A (GB)
Title: Improvements in or relating to drafting roll weighting mechanisms
IPC: D01H5/50
Filed: 1970-07-17
Abstract: 1281300 Drafting roll weighting mechanisms MAREMONT CORP 17 July 1970 [28 Aug 1969] 34666/70 Heading DID In a drafting mechanism having a continuously rotating lower roll 30 and a detachable upper roll 44 driven frictionally thereby, the upper roll 44 is supported in an upwardly opening recess 40 of a bearing 38 and is biased against the lower roll by a saddle 46 pivoted centrally at 48 and operated by a spring 52 via a rod 50. The saddle 46 comprises a four link double toggle-joint mechanism which may be locked in the operative position of Fig. 2 or released to free the upper roll 44 as in Fig. 3 (not shown). The upper roll supporting and biasing system is carried on a rod 24 which may be rotated a limited amount to set the peripheral engagement position of the rolls and is located by a lever 72 which is locked by a screw 76. The ends of rod 24 are held in roll support stands 14, which carry the bearings for the lower roll 30, and are held by pinch bolts (26), Fig. 3 (not shown). Roll 30 sits in a bearing recess (28) and is located by a cap 32. Rails 18 extending from stands 14 carry the middle and back rolls (not shown) which are adjustable along the rails.
Patent GB-217614-A (GB)
Title: Improvements in and relating to the production of tetryl and ethyl tetryl
Filed: 1922-12-20
Abstract: 2 : 4 : 6-Trinitrophenyl-methyl- and -ethylnitramines are prepared by nitrating in concentrated sulphuric acid the nitrosamines from monomethyl- or monoethyl-aniline.  The process may be applied to pure monomethyl- or monoethyl-aniline, or to mixtures containing the corresponding dialkylanilines, by conversion to nitrosamines by the known methods, separating the latter from the dialkylaniline if present, and then nitrating in sulphuric acid; the dimethylaniline separated may be added to the phenylmethyl-nitrosamine and the mixture directly nitrated.  In an example commercial monomethylaniline is treated with sodium nitrate in hydrochloric acid solution and the oily nitrosamine separated; the solution remaining is then made alkaline and the dimethylaniline obtained mixed with the nitrosamine and the mixture nitrated in concentrated sulphuric acid: in a second example the nitration of phenylethylnitrosamine is described.