baber/WOPTO huggingface dataset:
Patent GB-1529915-A (GB)
Title: Astigmatic focus correction circuit
IPC: H01J29/56
Filed: 1976-03-01
Abstract: 1529915 Correcting astigmatism UNITED TECHNOLOGIES CORP 1 March 1976 [4 March 1975] 08094/76 Heading H4T Astigmatism error arising in the magnetic deflection of the electron beam in a CRT is corrected by pairs of coils whose excitation currents are functions of the horizontal and vertical deflection signals. The error arises through non- uniformity of the deflection field and consequent change in the focal point of the beam with change in the deflection signals V x , V y . The error causes an elongation of the cross-section of the beam in a direction transverse to the direction of deflection, the elongation being a function of the deflection. In the stroke-write display system shown, deflection signals V x , V y  are fed from a character generator 10 to horizontal and vertical deflection amplifiers 34, 35 and to a focus amplifier 40. They are also fed to multipliers 46, 52 which respectively produce signals proportional to V x <SP>2</SP> and V y <SP>2</SP> and to a multiplier 48 which produces a signal proportional to V x  V y . The outputs of multipliers 46,52 are fed to an adder 64 which provides a signal for the driving circuit 72 of a correction coil set Fl. A voltage feedback circuit 89, 90 from the coils to the adder is dimensioned such that the current in the coil set F1 is proportional to V x <SP>2</SP>-V y <SP>2</SP>. The output of multiplier 48 is similarly coupled to correction coil set F2 through adder 80, coil driver 84 and feedback circuit 92, 93 such that the current in coil set F2 is proportional to 2V x V y  The coil set Fl consists of coils 96, 97, 98, 99, Fig. 2, and coil set F2 of coils 112, 113, 114, 115, all coils being wound on the same yoke 94 and adjacent coils in the same set being oppositely wound. The last feature results in minimum inductance and fast response. When either V x  or V y  is zero and the other signal non-zero, correspondingly to Y deflections or X deflections, the current in coil set F2 is zero and the current in coil set F1 is proportional to either V x <SP>2</SP> or to V y <SP>2</SP>. The coils 96-99 of coil set F I produce magnetic fields along the X and Y axes respectively proportional to V x <SP>2</SP> and V y <SP>2</SP> whereby the cross-section of the beam is elongated in a direction parallel to the direction of deflection. Where V x  and V are both non-zero the coil set F2 will be excited. For equal values of the same sign, excitation of coils 112-115 is such that maximum elongation of the beam section occurs along axis X a , and for equal values of opposite sign, maximum elongation occurs along the axis Y a . For both these cases, excitation of coil set Fl is zero. The distortion of the beam crosssection produced by coils F1, F2 is such as to precorrect that caused by the deflection coil 38.
Patent GB-460819-A (GB)
Title: Improvements in or relating to devices for manipulating containers for the transport of merchandise
IPC: B62B5/00
Filed: 1936-03-18
Abstract: 460,819. Vehicles with removable bodies ; arrangement of wheels. CRESCENT, A. J. A. March 18, 1936, No. 8110. Convention date, June 25, 1935. [Classes 108 (i) and 108 (ii)] A transportable container is adapted to have attached to each lateral face a wheel arrangement in which the axle is slidable in a guide member adapted to be raised relatively to the axle by a jack. The guide member 1 is adapted to be secured to the side face of the container at its base and at its upper portion by means of two bolts 2 or other means. The sliding axle 3 carrying the wheel 4 is mounted in the guide member 1 and jacks 5, 6 supplied by a pump 7 are interposed between the guide member 1 and axle member 3. Two small wheels 9, 10 are arranged in the central plane in pivoted brackets and are vertically adjustable. As shown in Fig. 2, a driving arrangement is fitted to each wheel and comprises pinions, an idler and a hand crank. Any other driving arrangement may however be employed. Fig. 4 shows an adjustable brake comprising shoes 18 pivoted at 0 and connected by links 12 to a rocking lever 13 pivoted at e and connected to an operating rod 14 which is provided with a controlling spring 15 and an adjustable abutment 17.
Patent GB-100785-A (GB)
Title: Milling-machine.
Inventor: SCHURR CHARLES HENRY
IPC: B23Q5/56
Filed: 1916-06-08
Abstract: 100,785. Schurr, C. H., and Lees, E. J. June 30, 1915, [Convention date]. Lathes; milling.-A milling-machine is arranged to permit a series of cuts to be taken without declutching or reversing the feed-train, so avoiding lost motion due to this cause. The invention is described with reference to a milling-lathe. The cutter saddle 15 is traversed by a lead-screw, driven through a pinion and clutch 13 from a pinion 11 splined to a shaft 10 geared to the work spindle, along an auxiliary saddle 19 clamped to the bed. To take a second cut, the saddle 19 is released, is returned by rack-and-pinion gear, and is reclamped, the feed between the saddles 19, 15 not being interrupted due to the splined pinion 11. When the saddle 15 has traversed the full length of the lead-screw. a splined hand-wheel 16 is operated to disconnect the clutch and return the saddle.
Patent GB-360787-A (GB)
Title: Improvements in an emergency brake operating lever
IPC: G05G5/18
Filed: 1931-03-17
Abstract: 360,787. Hand-brake levers. FORD MOTOR CO., Ltd., 88, Regent Street, London.-(Assignees of Sheldrick, L. S. ; 2509, Hazelwood Avenue, Detroit, Michigan, U.S.A.) March 17, 1931, No. 8150. Convention date, April 23, 1930. [Class 103 (i).] A brake lever 30 is formed from sheet metal bent to form a tube which encloses the ratchet operating rod 29. The metal is stamped to form a bifurcated end, forming a pair of arms 20 on which the lever is mounted. Embossed portions 21 stiffen the arms 20. The lever is pivoted on a bolt 23 supported on a plate 16 which is straddled by the arms 20. The ratchetoperating rod 29 is connected to the panel 27 which is pivoted at 26 on the lever and engages ratchet teeth 18 formed on the bottom of the plate 16. The brake-rod 28 is connected to the lever at 36 or may be provided with a clevis which is attached directly to the pin 26. A cap 35 spun over a flange at the top of the lever guides a button 33 on the top of the rod 29. A flanged cup 32 held in place by the flange 35 contains a spring 34 urging the button 33, rod 29, and ratchet 27 upwardly. The plate 16 is mounted by means of screws 17 on the gearbox.
Patent GB-661491-A (GB)
Title: Improvements in or relating to the preparation of sodium penicillin
IPC: C07D499/00
Filed: 1949-03-25
Abstract: Sodium penicillin (especially sodium penicillin G) is manufactured by reacting sodium iodide with a trialkylamine salt of penicillin in a substantially anhydrous solvent therefor, (advantageously at 0-35 DEG C., and preferably at room temperature), and recovering the resulting sodium penicillin (e.g. by crystallization).  Preferably a solution containing about 5-15 per cent by weight of sodium iodide in acetone and/or ethyl alcohol is added to a solution of the triethylamine salt of penicillin in ethyl alcohol and/or chloroform in such quantity that at least a molecular excess of sodium iodide is present in relation to the penicillin salt.  Examples illustrate the use of the specified solvents.
Patent GB-272640-A (GB)
Title: Improvements relating to machines for making envelopes, paper bags and the like
IPC: B31B23/00
Filed: 1926-03-29
Abstract: 272,640. Hugo, T. March 29, 1926. Paper bags, envelopes, and the like, making.- In a machine for making envelopes, paper bags, &c. from a web which is continuously fed in a direction inclined to the positions of the cutting and stamping knives and folding boxes, the unwinding of the web from its reel, the printing, the gumming of the closing flaps and, if required, the embossing, are effected during the continuous movement, whilst during temporary stoppage of the end of the web the corners are stamped out and the blanks cut from the web by vertically-reciprocating blades and the folding is effected without altering the angular position of the blanks. The web 1 is drawn continuously from a holder 2 by pairs of rollers 7, 8 and 10, 11 between which are disposed a printing roller 12 and gumming roller 16 for the closing flaps. From the rollers 10, 11 the web is drawn intermittently by pairs of rollers 19, 20 and 21, 22 to a reciprocating stamping and cutting device 23, a roller 18 engaging the web in the loop formed when its feeding movement is arrested and being raised when the feeding movement is resumed. The holders 2 are adjustable as regards their distance from and position with respect to the work-table and means are provided for adjusting or exchanging the printing and gumming devices and the blades of the stamping and cutting device. The continuouslymoving parts are mounted on a frame adapted to be moved through a circular arc to adjust the inclination of the web. The machine may be adapted to work with two or more webs simultaneously. Specification 234,418 is referred to.
Patent GB-323688-A (GB)
Title: Improvements in or relating to matrix setting and type line casting machines
IPC: B41B7/18
Filed: 1929-03-15
Abstract: 323,688. Wade, H., (Typograph Gcs.). March 15, 1929. Justifying matrices.-In machines having ring spacers, the square spindle that carries the spacers is resiliently mounted, so as to adjust itself automatically for any body height of line. In the form shown in Fig. 1, two space-rings b, arranged on a bar c, are held in setting position by square spindles d mounted at both ends in supports e. The supports e are mounted to slide in guides h, and are pressed forwards by springs i. When lines of unusual height are to be cast, the spacerings are pressed forwards, so as to close the mould, as shown in Fig. 4. For lines of ordinary height, the rings are forced back by the mould, as shown in Fig. 3.
Patent GB-474080-A (GB)
Title: Improvements in or relating to scaffolding and like clips or clamps
IPC: E04G7/14
Filed: 1936-03-21
Abstract: 474,080. Scaffold clamps. MILLS SCAFFOLD CO., Ltd., and MACBETH, A. March 21, 1936, No. 8542. Addition to 452,286. [Class 20 (ii)] A modification of the scaffold clamp described in the parent Specification consists in the provision on each arm 1 of each clamp portion, of a diverging inclined lip portion 7, slotted to receive a clamping bolt 10 provided with a coned head 11 and washer 13, so that each bolt is slidden laterally with a parallel motion to bind against the corresponding scaffold member 4. The washer 13 may be omitted, and the face of the nut itself shaped to cause sliding movement of the bolt, which is provided with a square shank under the coned-head. The head and washer may have eccentrically disposed coned faces with respect to the axis of the bolt, in order to provide a range of adjustment for different diameters of scaffold members.
Patent GB-601979-A (GB)
Title: Periodic circuit breaker with a liquid conductor, particularly for contact current changers
IPC: H02M1/30
Filed: 1945-04-06
Abstract: 601,979. Mercury switches. WIDAKOWICH, M. April 6, 1945, No. 8578. Convention date, April 6, 1944. [Class 38 (v)] In a mercury jet interrupter suitable for converting A.C. to D.C. or vice versa, wherein mercury is drawn up from a stationary outer receptacle 1 into a rotating inner receptacle 2 and issues thence in the form of jets, the mercury is divided during its circulation so as to form a series of stationary jets and a series of rotating jets, the latter making periodic contact with the former. The mercury divides at the partition 24, the lower portion issuing through rotating nozzles 23 and the upper portion issuing through rotating nozzles 25 into a series of troughs 26 formed in a number of stationary contact pieces 27 arranged round the receptacle 1 and thence issuing through a series of stationary jets 29. During operation circuit is completed periodically to each of the fixed contacts 27 by both jets 23, 25, the actual point in time at which circuit is made being determined by the moment when the jet 25 passes the edge of an insulating partition (not shown) and falls into a trough 26. The jet 25 then sweeps over the length of the contact 27 till it is cut off by the next insulating partition, after which circuit is still maintained for a short period while the stationary jet 29 engages the rotating jet 23. The actual break then occurs between two mercury jets. In a modification, the jets 25 feed one long continuous trough provided with holes in the bottom from which it passes in the form of small drops to the troughs 26.
Patent GB-1388685-A (GB)
Title: Method of and machine for filling containers
IPC: B29C65/78
Filed: 1971-04-03
Abstract: 1388685 Seaming non-metallic sheet material J H GAUNTLETT 30 March 1972 [3 April 1971] 8613/71 Heading B5K [Also in Division B8] In a machine for producing liquid filled containers, two filled, flanged part containers 11  are ultrasonically welded together. The machine comprises in one embodiment, Fig. 5, a rotatable index plate 16, a welding horn 21 and an anvil 19. The part containers 11 are fed to the welding horn and anvil and held therein during the filling and welding operations. In an alternative embodiment, Fig. 7, one of the pair of part containers is held in a rigid external body 48 and a welding horn 49 is arranged within this body 48. Liquid seals 31, 51 are provided between the welding components to define a liquid tight chamber. The machine may be of duplex form.
Patent GB-216620-A (GB)
Title: Improvements in advertising apparatus
IPC: G09G3/00
Filed: 1923-03-26
Abstract: 216,620. Maile, W. S. March 26, 1923. Radial boards and like elements, oscillating.- In advertising devices in which interchangeable panels arranged in rows and bearing successive letters of a word &c. are automatically uncovered in succession by pivoted opaque shutters to permit illumination thereof by a source of light, the shutters 6 are hinged at their lower edges on common rods 7 in a rear frame 5 and are closed by wipers moving over the faces of the shutters. The wipers comprise rods 18 mounted on endless chains 13 which pass over toothed wheels 14 driven by a motor 17. The rods 18 or the top edges of the shutters 6 are inclined so that the shutters in any one row are released in succession either singly or in groups, and fall by gravity to spell out a word, &c. The panels 4 are removably held in grooves 3 in a front frame 1, and the letters are framed by cross-members 9. One long plate or separate letter-carrying plates may comprise the panel. The shutters 6 fall back upon wires, threads, &c. 8. The rods 18 are spaced on the chains 13 at distances which determine the order in which the rows of shutters 6 fall. The shutters 6 may have convex rear faces, and may comprise an opaque plate backed by one or more separately hinged transparent coloured plates of different lengths, the rods 18 first allowing the opaque plate to fall and then the transparent plates in succession. Daylight or a lamp 21 illuminates the panels 4, which, when of a stencil nature, may be covered at the rear with transparent coloured material. According to the Provisional Specification, the shutters in any one row may be hinged at different levels and may be operated other than successively. Some of the wipers may not engage with all the shutters. The shutters may bear advertising matter.
Patent GB-512812-A (GB)
Title: Improvements in or relating to devices for mounting mirrors, lamps and other articles more particularly upon road and other vehicles
IPC: B60R1/06
Filed: 1938-03-21
Abstract: 512,812. Look-out reflectors for vehicles. STADIUM, Ltd., and SEYMOUR, L. G. March 21, 1938, No. 8691. [Class 103 (ii)] [Also in Group XI] A device for mounting a driving mirror, spotlight, or other article, more particularly on a road vehicle, comprises a supporting arm 20 provided at its article-engaging end with an enlarged head 21 which is of smoothly rounded contour and which has a part-spherical surface 22 held in close fitting and adjustable relation to a complementary part-spherical surface 19 formed upon the body of the article to be mounted, the two complementary surfaces being maintained in their adjusted position by clamping means which are located entirely within the enlarged head and the body of the article, and whose clamping pressure can be controlled by a screw 26 whose head is arranged to be flush with the surface of said enlarged head. The clamping-members comprise, in the form shown, a nut 28 and plates 31. The nut 28 is provided with a squared shank 32 which fits into a corresponding bore 23 in the head 21 to prevent the nut from turning. A rim 34 on the nut is adapted to come into positive contact with the clamping-plate 31 and lock the whole joint in a rigid manner. The part-spherical body portion 19 may be eccentric in relation to the article to permit of an extended range of adjustment.
Patent GB-397413-A (GB)
Title: Improvements in and connected with containers for packing cut flowers, plants and for like purposes
IPC: B65D85/50
Filed: 1933-03-23
Abstract: 397,413. Boxes for flowers &c. RENOUF, W. J., Bellis, St. Andrews, Guernsey. March 23, 1933, No. 8759. [Class 18.] Means for securing cut flowers &c. in a box comprises a wooden bar into the ends of which are driven pins or spikes, each of which is formed with an abutment between its ends to abut against an end of the bar, the outer ends of the pins being pointed and the bar being secured in position by flexing the walls of the box outwardly to receive the bar and pins and then pressing back the walls on to the pins. The abutments may take the form of flanges 6 integral with or threaded on the pins, or the pins may be split longitudinally and doubled laterally as shown in Fig. 4, or an eye 8 may be punched in the pin and the opposed arcuate parts flattened, or a pin 9 may be driven through a hole formed in the pin.
Patent GB-209015-A (GB)
Title: Improvements in street boxes for fire alarm and like systems
IPC: G08B25/12
Filed: 1923-03-28
Abstract: 209,015. Gamewell Fire Alarm Telegraph Co., (Assignees of Jackson, G. A.). Dec. 27, 1922, [Convention date]. Fire, police, and like alarm systems and apparatus.-In street box apparatus for fire alarms the manually operable member for starting the clockwork transmitting apparatus, is protected by an attachment which affords a clear view of the member and may be fitted to existing street boxes. The manually operable member 32 carried by a pivoted arm 30 working between stops 38, 39, projects through an opening 27 in a recess 25 of the hinged door 21 of the street box. The member 30, normally held in the raised position by a spring 41, has lugs 33, 34 one or other of which engages the clockwork starting lever depending upon the type of transmitter used. The member 30 is adapted to cover in both of its extreme positions the opening 27 to prevent the ingress of dirt, rain &c. into the compartment enclosing the transmitter. The member 32 is enclosed by a cover which comprises a frame 42 hinged at 43 to the door 21 and normally retained closed by a spring 44 which engages a plate 45 carried by the frame 42. The frame has a handle 46, by which it may be opened and closed and a panel 48 of glass, celluloid &c. through which a legend 47 on the door 21 may be seen. Legends 52, 53 carried by the portion 28 of the door 21 and the handle 46 respectively give instructions for obtaining access to the member 32. A reserve supply of panels 48 are carried on the rear side of the door 21 by a spring 58. A spring 55 acting on plunger 54 imparts an opening tendency to the frame 42 so that if the frame is not completely restored after use, attention is drawn thereto.
Patent GB-728993-A (GB)
Title: Non-freezing hydrant
Inventor: BAKER ALBERT ALLEN
IPC: E03B7/10
Filed: 1953-03-31
Abstract: 728,993. Hydrants. ZURN MFG. CO., J. A. March 31, 1953, No. 8951/53. Class 69 (1). A non-freezing hydrant comprises a housing 1 for disposal below the frost line of the earth and containing a valve housing 7 for a conical - shaped valve head 19 which is connected to a valve rod 17 extending upwardly through a riser 23 attached to the housing 1 and carrying a head 24 with a spout 28, the valve rod 17 being operable from above the hydrant, and a rubber or other flexible sleeve 14 spaced from the wall of the riser extends.from the valve casing 7 to the upper end of the head 24. The valve head 19 carries a cupshaped sealing washer 20d, there is a threaded and caulked connection 20a, 20c between the riser 23 and the housing 1, and the valve rod 17 is surrounded by a supporting sleeve 39 seated in counterbores 40, 38 in the valve casing 7 and the cap 44 of the head 24, respectively. The head 24 is expanded outwardly as at 27, the flexible sleeve 14 is secured in position by clamps 15, 33 and serrations 13, 32, and the valve rod 17 is operated by a hand wheel 50.
Patent GB-463351-A (GB)
Title: Improvements in steam desuperheaters
IPC: F22G5/12
Filed: 1936-03-26
Abstract: 463,351. Desuperheating steam. HOPKINSONS, Ltd., BROWN, R. L., and DALE, W. B. March 26, 1936, No. 8987. [Class 55 (ii)] Steam is caused to flow in contact with the outside of a spray-type desuperheater before entering it so as to effect evaporation of spray impinging on the walls. An outer casing c surrounding an open-bottomed desuperheater chamber a receives superheated steam which heats the chamber walls before diversion upwardly by a baffle f into contact with water sprays from nozzles e. Water draining from the chamber passes through a hole g in the baffle and openings h<1> in the rim of a platform h to a collecting compartment j, a packing ring m held by spring pressure between the baffle and platform and in contact with the outer casing preventing superheated steam passing directly into the compartment.
Patent GB-1211791-A (GB)
Title: Control circuit for electrical generating system
Inventor: SNEDEKER MARION LESTER
IPC: H02J7/16
Filed: 1968-02-23
Abstract: 1,211,791. Automatic control of current or voltage. LEECE NEVILLE CO. Feb.23, 1968 [Feb.23, 1967], No.8992/68. Heading G3R. In a supply system, e.g. the electrical generating system of a motor vehicle, of the type including a generator, a field regulator for the generator and a battery, a static switch is provided to prevent, inter alia, current drain from the battery through the field circuit of the generator when the system is not operating. As shown, an alternator 10 having a rectified output supplies a load including a battery 19 over output conductors 16, 18. The generator field winding 12 is connected between the conductors 16, 18 in series with a regulator 20 Fig.2 (now shown) and the collector/emitter path of a transistor 17 which is associated with a control transistor 27 responsive to the output from the alternator 10. When the system is not operating, transistor 17 is non-conductive and the regulator 20 and field winding 12 are electrically isolated from the battery 19. When a switch 24, e.g. the ignition switch of a vehicle, is closed and the alternator 10 is started up, a bleed current flows from battery 19 by way of the parallel combination of a resistor 25 and lamp 26 through the regulator 20 and field winding 12 whereupon the output voltage builds up to render transistor 27 conductive; the signal from transistor 27 in turn renders transistor 17 conductive to connect the field winding 12 and regulator 20 across the output conductors 16, 18. The regulator 20 then operates in known manner to regulate the electrical output, e.g. voltage or current, of the alternator 10. The lamp 26, which lights when the switch 24 is initially closed, is extinguished when the voltage on the terminal 20a of the regulator approaches that of the load conductor 18, this occurring as the transistor 17 becomes conductive.