baber/WOPTO huggingface dataset:
Patent GB-604803-A (GB)
Title: Modulating device, in particular for carrier current telephonic installations
IPC: H03C1/58
Filed: 1945-12-04
Abstract: 604,803. Modulating arrangements. SOC. ANON. DE TELECOMMUNICATIONS. Dec. 4, 1945, No. 32759. Convention date, Aug. 6, 1942. [Class 40 (v)] A ring modulator comprising metal oxide or valve rectifiers 1, 1<1>, 2, 2<1> is fed with a carrier wave at terminals 9, 9<1> and modulating signals are applied through transformer 5. The halves of the primary winding 7 of the output transformer 8 may be connected through a balancing resistance 11, and unbalance caused by the external circuits connected to either or both transformers 5, 8 is compensated by high resistance potentiometer connected across each transformer contributing to the unbalance, the slider and an adjustable condenser being connected across half of the transformer winding. The variable condensers 20, 18 shown may be replaced by a differential condenser connected across the whole of each winding, with its tapping connected to the mid-point of the winding.
Patent GB-907419-A (GB)
Title: Automatic frequency tuning circuit for an oscillator
IPC: H03J7/04
Filed: 1960-09-23
Abstract: 907,419. Automatic frequency control systems. STANDARD TELEPHONES & CABLES Ltd. Sept. 23, 1960 [Sept. 28, 1959], No. 32783/60. Class 40 (5). A receiver local oscillator 14 is automatically tuned by a frequency discriminator with output applied through a cathode follower 1 to vary the effective resistance of a rectifier 33 in series with the tuning capacitor 34 of the oscillator 14. Further, the cathode follower output is connected through a voltage dependent resistance 43 to the junction of a resistance 44 and thermionic valve 48 series-connected with a voltage source V<SP>11</SP> so that, on switching on the receiver, the rectifier 33 is rendered conductive by the source V<SP>11</SP> and the oscillator is prevented from producing a higher (inaccurate) frequency until the valves 1, 48, 14, warm up. Thereupon the voltage on rectifier 33 is supplied by the cathode follower 1 and, since the valve 48 is then also conductive, the potential across voltage dependent resistance 43 decreases to increase its resistance and isolate circuit 43, 44, 48 to prevent it loading the oscillator circuit. As shown, valve 1 is a television I.F. amplifier, the discriminator being tuned to the video carrier I.F. with its D.C. output applied between the grid and cathode through filters 28-31. The valve 48 may have its grid and cathode connected, to act as a diode, and preferably is contained in the same envelope as valve 1. The oscillator 14 is part of the channel selector.
Patent GB-744348-A (GB)
Title: Improvements in or relating to motor vehicle bodies
IPC: B60J7/02
Filed: 1953-11-26
Abstract: 744,348. Vehicle hoods; vehicle bodies. FORD MOTOR CO., Ltd. Nov. 26, 1953 [Nov. 26, 1952], No. 32831/53. Class 108 (1). A motor vehicle has a rigid roof 32, Figs. 4, 5, comprising a main supporting member 43, a trolley 47 attached to the member and carrying rollers 48 running in a guideway 33 so that the roof may be moved to lie beneath a pivoted deck lid 38, and a window 34 pivoted to the body by links 36, 37, which window may first be moved to overlap the roof by rotation of a link 56 pivoted to the trolley 47 and 54 and tied at its other end to an endless cable 58, and is then moved to slide rearwardly with the roof. A boot lid 87 pivoted at 88 and supporting a spare wheel, may be lowered to give access to a luggage compartment. The window, roof, and deck lid, may be operated in timed sequence by an electric motor, which moves the window and roof by rotating a drum 67 to move the cable 58 around pulleys 62, 63, and rotates gearing 72 to lift the lid. Beneath the guideway 33 and pivoted at 77 to the trolley 47, Figs. 10-13, are a pawl 81 and a catch 76. In the hood-operative position the pawl and catch are as in Figs. 12 and 13, the catch 76 engaging a lock-plate 73 on the guideway, thus preventing the trolley 47 from moving, and the pawl 81 engaging a camrelease plate 74 so that it is held in an inoperative position. When the motor operates to lower the hood, the cable 58 rotates the lever 56 in a counter-clockwise direction which actuates the link 37 to move the window over the roof, Fig. 5. When the window is fully retracted the lever 56 engages the arm 79 and unlatches the catch 76, Fig. 11, which allows the trolley 47 to be moved by the cable and lever 56. Simultaneously with the raising of the window, the lid 38 is raised by rotation of the gears 72 and movement of the toggles 41, 42, and as the roof is moved to its stored position the lid is closed again by return movement of the toggles. To raise the roof the motor and cable are moved in reverse, and since the lever 56 is prevented from clockwise movement by the pawl 81 which has now moved off the cam-plate 74 and obstructs the lever, Fig. 11, then the roof and rear window are moved forwardly and the toggles raise the lid. As the roof approaches the end of its forward movement, the plate 74 swings the pawl to release the lever 56 and allow it to return the window 34. Limit switches may be used to control the motor. In Fig. 15, the window 101 may be moved by levers gear-driven from the cable drum to storage behind the back seat, the window being provided with rollers 106 moving in guideways 107. In another modification the deck lid may be also pivoted at its front end to give access to the luggage compartment. In a further modification the deck lid may be raised by providing the roof with guideways for rollers on the lid so that the lid is automatically raised when the roof is moved rearwardly.
Patent GB-466605-A (GB)
Title: Improvements in transmission mechanism for road vehicles
IPC: B60K17/04
Filed: 1935-11-27
Abstract: 466,605. Motor vehicles. GARNER, J. P. Nov. 27, 1935, No. 32840. [Classes 79 (ii) and 79 (iii)] Transmission mechanism comprises an upper casing 10 fitting on and secured to the top of a lower casing 5, the upper casing being adapted to receive a standard construction of variable gear 11 or an electric motor, and the lower casing containing a standard construction of differential gear 2 and a transmission shaft 19 which is driven by the variable gear or the electric motor. In the construction shown the upper casing contains a variable gear having side-by-side shafts 13, 14 driven by an internalcombustion engine (not shown) through a clutch 15, and driving the shaft 19 through chain or other gearing 16, 18 the ratio of which is changeable to suit the work of the vehicle. An auxiliary gear-box may be provided between the variable gear and the shaft 19. The differential gear 2 drives axle shafts 3, 4 which drive the front wheels of the vehicle. When an electric motor is used the variable gear 11 may be dispensed with. The casings 5, 10 are joined at 9- in the horizontal plane containing the centre lines of the axle shafts.
Patent GB-638665-A (GB)
Title: Automatic weighing machine
IPC: G01G13/00
Filed: 1946-11-06
Abstract: 638,665. Weighing-apparatus. WRIGHT'S AUTOMATIC MACHINERY CO. Nov. 6, 1946, No. 32942. Convention date, April 3. [Class 143] In an automatic feed weigher, on receipt of a predetermined weight of material, the receiver is lifted from the weigher, traversed laterally therefrom, then tipped to discharge the material and finally returned to the weigher. Material is fed from a continuously operating conveyer 22, Fig. 1, into that container 20 or 21 which is supported, through its trunnions 42, Figs. 10 and 5, by a yoke 47 secured to a preloaded float weighing scale as described in Specification 633,075, said trunnions being located on said yoke by means of slots between each of two pairs of fixed cam plates 44. The yoke 47 is operatively attached to a switch which is closed when a predetermined weight of material is in the container 20 or 21 and triggers off a motor driven mechanism which first raises a pair of rods 106, 107 which lift the trunnions off the yoke 47 and above the slots between said cams 44 so that they may subsequently be engaged by a traversing mechanism and then, through a series of cranks, moves a lever arm 102 to its other extreme position. This arm is operatively connected, through a pin 103, with a carriage 27 which is pushed thereby from end to end of the guideway 33 and has cut therein slots 43 which, when the trunnions are not engaged by the cam plates 44, the weigh yoke 47 or the rods 106, 107, support said trunnions and carry the containers 20, 21. Movement of the carriage 27 to the right in Fig. 1 first pulls the trunnions 42 of the container 21 off the rods 106, 107 and traverses said container in a horizontal position until a pin 121 secured thereto passes over the curved portion of a guide 119 so tipping said container and discharging its contents into a shoot 25. Simultaneously, the other container 20 is righted by means of a similar pin and guide mechanism, and traversed to the right and up the slope of cams 44 which temporarily support the container until it contacts the forked tops of rods 106, 107 which rods are then gently lowered by the above mentioned motor driven mechanism until the trunnions of the container 20 are supported on the weigh yoke 47, whereupon a new weighing cycle commences. Spillage is prevented by securing a hopper 39 to the carriage 27, which hopper carries the bearings of a pivoting material deflecting vane 123 swingable from left to right by means of a roller 127, attached thereto, engaging a ramp 128 secured to a fixed member of the apparatus.
Patent GB-1397271-A (GB)
Title: Bidirectional data shift unit
IPC: G06F7/00
Filed: 1972-07-14
Abstract: 1397271 Shift network INTERNATIONAL BUSINESS MACHINES CORP 14 July 1972 [14 Aug 1971] 32965/72 Heading G4A A bidirectional data shift unit includes a number of cascaded shift levels each arranged in response to control signals to shift a group of binary bits by different amounts, a number of overflow indicator circuits associated with respective ones of the shift levels and arranged to generate an output in response to the shift control signals associated with their associated level and those bits supplied to their associated level which may overflow as a result of a shift in that level, and a logic circuit responsive to the signals from the indicator circuits and a parity bit for the group of bits originally supplied to the shift unit to generate a parity bit for the shifted output produced by the unit. In an embodiment the unit includes three levels I, II and III arranged to shift an input group of bits by no bit positions or by one, two and four bit positions respectively to the right or left. Each level consists of AND gates enabled by control signals and fed with bits from the previous level (or the input), the position of the bit supplied to any gate relative to the position of the gate being determined by the degree of shift induced by that gate. Associated with each level is an overflow indicator circuit 36, 37, 38 which receives the shift control signals for the associated level and consists of AND gates fed with the bits which are supplied to the associated level and which may overflow as a result of a shift in that level, and the control signal which produces the particular shifts producing the overflows. The outputs of the indicator circuits are fed together with the parity bit of the original group of bits to a tree of exclusive OR gates. The output of the tree is a parity bit for the shifted output of the device. In a second embodiment arranged to shift a two byte, 16 bit input group, each byte having an associated parity bit, the first level is arranged to shift right or left by eight bit positions or to pass the input unshifted. Three lower levels are the same as in the first embodiment above. The indicator circuit associated with the first level consists of two AND gates fed with the shift control signals and the two byte parity bits, and an exclusive OR gate fed with the two byte parity bits. An exclusive OR tree is provided to generate a single parity bit for the 16 bit shifted output group. The output of an exclusive OR tree for generating a parity bit for one of the output bytes is fed together with the single parity bit to an exclusive OR gate to produce a parity bit for the other output byte. The parity generated for the shifted output may be compared with a parity bit generated from the shifted output for error detection purposes.
Patent GB-673720-A (GB)
Title: Magnetic core composition and method of producing the same
IPC: C04B35/26
Filed: 1949-12-29
Abstract: 673,720. Magnetic compositions. ALADDIN INDUSTRIES, Inc. Dec. 29, 1949 [Jan. 3, 1949], No. 33267/49. Class 38 (ii). A magnetic core for use in coils and transformers requiring a high Q at frequencies above 200 m/s. contains as its major constituent a complex compound of composition corresponding, with variations in the proportions of metal oxides of 10 per cent from theoretical values, to the formula where M is a nickel or cobalt atom. The composition is made by mixing the finely-divided oxides (Fe 2 O 3 , Ni 2 O 3  and Co 2 O 3 ); firing at 2000-2500 F., moulding under pressure the powdered product with an organic resinous, organo-silicon or silicate binder and heating between 1800 and 2350 F. Zinc oxide and/or vanadium oxide with sufficient iron oxide to neutralize them may be added to increase the frequency range of satisfactory performance. The thermal drift may be lowered by addition of a small amount of magnesium zirconate to which may be added a little lead titanate. Specification 673,719 is referred to.
Patent GB-964001-A (GB)
Title: Improvements in and relating to the production of unsaturated esters
Inventor: CLARK Duncan
IPC: C07C69/01
Filed: 1960-09-28
Abstract: Carboxylic esters of unsaturated alcohols are made by contacting an alpha-olefine with a palladium salt, either under substantially anhydrous conditions or in the presence of a minor amount, as hereafter defined, of water in the presence of a carboxylic acid, carboxylate ions, a redose system and molecular oxygen.  "Minor amount" of water means an amount which is small in comparison with the total amount of liquid constituents of the reaction mixture.  The redox system may comprise a salt of copper and/ or iron, preferably the chloride(s), or a copper carboxylate, preferably the ester of which it is the object to produce. Para-benzoquinone, duroquinone, or 2-ethyl anthraquinone may be used as redox system, palladous chloride, bromide or carboxylate, preferably acetate as the palladium salt.  Ethylene is prefered as the alpha-olefine, however C3 to C20 aliphatic alpha olefins, which may also be aryl substituted, specifically styrene may also be employed.  An alkali metal halide, e.g. lithium or sodium chloride may be present in the reaction mixture.  The carboxylic acid may be aliphatic monocarboxylic e.g. acetic, propianic, n-hexanoic, aromatic monocarboxylic, e.g. benzoic or a monoester of a dicarboxylic acid, e.g. ethylhydrogen phthalate, an aliphatic dicarboxylic acid e.g. adipic, an aromatic dicarboxylic acid e.g. terephthalic acid.  The carboxylate ions may be provided by an alkali metal e.g. sodium, potassium or lithium carboxylate, preferably corresponding to the carboxylic acid and preferably made in situ.  Molecular oxygen in the form of pure oxygen or air may be used, the olefin being introduced into the reaction in admixture therewith: The water content of the reaction mixture is preferably kept to a minimum . The reaction is improved by adding thereto one or more of urea, acetamide methyl or dimethyl acetamide, dimethyl formamide, acetonitrile, benzonitrile, dimethyl sulphoxide, or esters of the acid corresponding to the ester being produced, e.g. benzyl acetate. Reaction temperatures in the range 50 DEG  to 180 DEG C. and atmospheric and 10 ats are preferred.  Numerous examples also illustrate various mechanical methods of practically carrying out the invention.  In the synthesis of vinyl acetate, acetaldelyde, ethylidene diacetate and ethyleneglycol diacetate are by products.
Patent GB-1352583-A (GB)
Title: Polyether graft co-polymers
IPC: C08F283/06
Filed: 1971-07-15
Abstract: 1352583 Graft polymers HERCULES Inc 15 July 1971 33376/71 Heading C3G A graft polymer is obtained from a branched polyether polymer containing at least 1 mole per cent of a monomer unit having at least one halo-substituted branch radical which is a halosubstituted hydrocarbon, halo-substituted hydrocarbon-oxy or halo-substituted hydrocarbonoxy-hydrocarbon radical by replacing at least one halogen of the halogen-substituted branch radical with at least one graft composed of monomer units derived from at least one free radically polymerizable ethylenically unsaturated monomer. The reaction of (a) the polyether and (b) the grafting monomer is carried out by reacting (a) to (b) in a mole ratio of 1 : 0À005- 1 : 400 at -50‹-250‹ C. in the presence of a catalyst which is a transition metal-labile ligand complex in which the transition metal portion is in a valence state less than its maximum valence state. Numerous polyethers and grafting monomers are specified in the description. In the examples a copolymer of epiohlorohydrin and ethylene oxide is grafted with (a) methyl methacrylate (1-17, 22, and 23) (b) acrylamide (18), (c) styrene (19), (d) acrylonitrile (20); polyepichlorohydrin is grafted with methyl methacrylate (21); and a terpolymer of epichlorohydrin, ethylene oxide and 1,1,1-trichloro-3,4- epoxybutane is grafted with methyl methacylate. In the examples use is made of a liquid reaction medium, e.g. benzene. Specific catalysts in the examples are Fe(CO) 5 , [C 6 H 5 PCH 2 CH 2 P(C 6 U 5 ) 2 ]- Ni(CO), Ru(CO) 2 [P(C 6 H 5 ) 3 ] 2 Cl 2 , Ni[(EtO) 3 P] 4 , C 6 H 5 COC 5 H 5 Mn(CO) 3 , C 6 H 6 Cr(CO) 3  H 2 Fe- [(EtO) 3 P] 4 , Ni(CO) 2 [P(C 6 H 5 ) 3 ] 2 , Mn(CO) 4  and Mo(CO) 6 .
Patent GB-873612-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: PARR RONALD
IPC: G21C3/36
Filed: 1956-11-01
Abstract: 873,612. Nuclear reactors. A.E.I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. Aug. 14, 1957 [Nov. 1, 1956], No. 33394/56. Class 39(4). Fuel elements arranged in vertical channels in the reactor core each comprise an array of spaced parallel plates extending transversely or obliquely across a channel, the arrangement being such that the coolant is caused to follow a zig-zig path as it flows along a channel. As shown, Figs. 1 A, 1B, fuel plates 7 forming a pair of fuel elements are arranged such that the elements extend across the channel 2 and coolant flowing downwardly along the channel is constrained to pass between the plates as indicated by the arrows. In another arrangement, Fig. 2B, the stack of fuel elements is vertical and the coolant is caused to pass through the stack from side to side by baffles 9 - - - 11. In a further construction. Fig. 3B, thechannel walls 3<SP>1</SP>, 4<SP>1</SP> are shaped as shown to cause passage of coolant through the stack. The leading and trailing edges of the plates 7 may be curved to assist the coolant flow and the plate surfaces may be roughened or formed with hillocksto improve the heat transfer (Figs. 5, 8, not shown). Each plate 7 comprises uranium fuel having a magnesium or beryllium coating. Specification 790,688 is referred to.
Patent GB-845959-A (GB)
Title: Method and apparatus for producing multiple sheet glazing units
IPC: C03B23/24
Filed: 1958-10-21
Abstract: 845,959. Multiple sheet glazing units. LIBBEY-OWENS-FORD GLASS CO. Oct. 21, 1958 [Oct. 24, 1957], No. 33517/58. Class 56. In the production of multiple glass sheet glazing units, two hard sheets of glass are supported in spaced vertical face-to-face relation and the edges heated until pliable, a hollow insert is positioned between the heated marginal edges and the heated edge portions progressively brought into engagement with one another to fuse them together to form an edge wall and simultaneously seal the hollow insert in the edge wall to form a pore hole. The two sheets 21, 22 of glass are supported on carriages by suction cups to pass from series of stations at each of which a pair of edges are heated at 55, sealed at 57 and fire polished at 58. The carriages being rotated between each series to seal the next pair of edges. At one of the series, the hollow insert 64 is positioned between the edges at 56 and moved with the edges to the sealing rolls 61 at 57, where the curved sections 63 bring the edges together to form an edge wall 23 in which the insert 64 is embedded. The insert may be cylindrical or have an outer edge flange 66 as in Fig. 15. The inserts 64 are stored in a tube 70 and pressed outwardly by a spring 73 so that the end insert is held in a pair of spring clips 75 united to the open end of the tube 70. In timed relation to and initiated by the passage of a pair of sheets 21, 22, the tube 70 is pivoted downwardly so that the end insert 64 is passed onto a finger 77 and the tube 70 then moving outwardly at right angles to the movement of the sheets and finger 77 and returning to the rest position of Fig. 7. The tube 70 is secured to a body 69 mounted on a base 80 by a pin 79 riding in a sloping slot 78, the body 69 having a series of pins 81 similarly sloping and engaged by a spur gear 82 to give the required movements, the gear 82 being mounted on a shaft 83 and rotated from motor 88 by means of driving gear 87, chain 86 and a gear on shaft 83. The insertion device 68 comprises a body portion 89, from which the finger 77 extends upwardly mounted on the base 92 of the heating unit 55 by a pin 91 riding in a slot 90 and moved substantially horizontally by a gear 96 engaging a series of pins 93 and a pin 95 slightly below the other pins 93 which gives a slight upward movement to the finger 77 and insert 64 at the moment of sealing and just before the finger 77 moves downwardly as the gear 96 rounds the pin 95. The device 68 is moved in timed relation with the pair of sheets 21, 22 from a motor 108 bymeans of a shaft 116, chain 117 and sprocket 118 on shaft 97 of gear 96, the shaft 97 having an extension riding in a slot 98 surrounding the pins 93, 95. The pore hole inserts 64 are preferably made from a nickelcobalt-iron alloy.
Patent GB-960119-A (GB)
Title: Improvements in or relating to shower heads
Inventor: MCLEAN EDWARD SPRINGER
IPC: B05B1/26
Filed: 1961-09-19
Abstract: 960,119. Liquid distributing sprinklers. SPEAKMAN CO. Inc. Sept. 19, 1961, No. 33536/61. Heading B2F. A shower head comprises a bell-shaped body 20, Fig. 4, having a water inlet 21 at the smaller end thereof and a water outlet opening 22 at the larger end thereof, a circular face member 24 mounted transversely inside said body intermediate said inlet and outlet openings, said face member defining an annular opening between its periphery and the inner surface of the body to provide a discharge port for water which in operation forms an outer water curtain, and water discharge or water deflector means to provide a water shower within the area enclosed by said outer water curtain. In Figs. 2, 4, 5 and Figs, 1, 3 (not shown) the position of face member 24 is axially adjustable to provide an annular opening 27 between it and the body 20. The face member has a series of vanes 28 thereon and tapered annular slots 30, 31 cut therein so that the vanes hold the face member divisions together. In operation water flows into the upper chamber behind the face plate and is discharged through the opening 27, being given a swirling motion by the vanes 28 which tends to force the water against and around the lower interior surface of body 20, and water is also discharged through the annular slits 30, 31. In a second embodiment, Figs. 6, 7, 8 (not shown) the vanes are omitted and the face member divisions are held together by lugs. In a third embodiment, Figs. 9, 10, 11 (not shown) there are short straight vanes to give the water an outward swirling motion and instead of the annular slots there are radial slots. A fourth embodiment, Figs. 12, 13 (not shown) is similar to the first, but instead of the slots 30, 31 there are deflectors formed on the inner surface of the bell to deflect some of the discharging water inwardly toward the centre of the shower.