baber/WOPTO huggingface dataset:
Patent GB-462012-A (GB)
Title: Improved apparatus for preparatory processes, such as mixing or kneading
IPC: B29B7/48
Filed: 1935-08-31
Abstract: 462,012. Kneading &c. apparatus. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges,) Aug. 31, 1935, No. 24396. [Class 86] [Also in Group XXVI] Mixing and kneading apparatus comprises right- and left-handed intermeshing worms the threads of which are narrow at one end relatively to the pitch and increase in crosssection towards the other until they engage closely and form with the casing, a pump. The centre line a<1> .. a<6>, Fig. 1 of each thread is a helix of constant pitch, and the initial width of the thread is constant where.the pumping action takes place ; from this point, b<2>, c<2>, the thread gradually diminishes in thickness. Fig. 5 shows an assembly in which material acted upon by a pair of worms S<1>, S<2> is forced through a press plate R to a second pair of worms and thence through a second press plate to a third pair. The material may be treated by a liquid in countercurrent which is forced into the apparatus at V<1> and discharged at U after traversing the paths V2, V<3>.
Patent GB-383339-A (GB)
Title: Improvements in or relating to dynamo electric machinery
IPC: H02K3/51
Filed: 1931-08-31
Abstract: 383,339. Dynamo-electric machines. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. Aug. 31, 1931, No. 24467. Convention date, Aug. 29, 1930. [Class 35.] Coils; field magnets, cooling.-The end connections of the rotating field magnet of a dynamo-electric machine are clamped by caps or bands on supports centred and guided on the ends of the rotor body through friction reducing means such as balls or rollers whereby the end connections and the supports can move together axially as the result of the expansion of the winding due to heating. The end connections a are clamped by divided bands b on a carrier ring f, insulation c being interposed. The ring f is freely displaceable on the rotor d in the axial direction, movement in the circumferential direction being prevented by keys &c. Balls or rollers are inserted between the ring and the rotor body. The passage h for the rotor cooling air extend under the carrier ring and air is admitted to the end connections through slots k in the ring. The carrier rings may be divided transversely into a number of smaller rings, spaced apart, or by axial slits into a number of axially directed bars or segments.
Patent GB-376081-A (GB)
Title: Improvements in and relating to electric lifts
IPC: B66B1/52
Filed: 1931-09-01
Abstract: 376,081. Lifts. FOTHERGILL, J., Greystones, Carmel Road, Darlington. Sept. 1, 1931, No. 24544. Addition to 297,562, [Class 78 (ii), Lifting &c.]. [Class 78 (ii).] Electric plant.-In order to facilitate supervision and to reduce noise some or all of the operating switches of the apparatus described in the parent Specification are taken from the well and associated in a remote unitary structure, the striker associated with the control solenoid being replaced by a contact member movable with the control solenoid in a direction parallel to the axis of a plurality of rotary devices each embodying a pair of switch contacts for the completion of " up " and " down " levelling circuits, the number of rotary devices employed corresponding to the number of floors and being axially displaced to correspond to the linear distance travelled by the companion solenoidcontrolled contact member during movement of the cage from one floor level to another. A shaft 2 mounted in the structure 1 is driven by the cage and carries slip rings 4, 5 and insulating discs 7, 8. Each disc is adjustable angularly and axially, and has contacts 9, 10 connected to the slip rings 5, 4, respectively. Stationary brushes 6 engage the rings 4, 5. A threaded spindle 11 and a shaft 13 are driven by the shaft 2 through chain-and-sprocket gearing 12, 14. A solenoid 16 is carried by a holder 17 which is guided by the shaft 15 and formed with a nut which is engaged by the spindle 11. When the solenoid is de-energized a contact 18 carried by its plunger rests upon one of the contacts 9, 10 or upon the insulated gap between them. Three rubbing contacts 19 mounted on the holder 17 engage three conductor rails 20. The usual switches (not shown) for breaking the " up " and " down " circuits when the cage is at a floor level are mounted on the shaft 13, and these circuits are completed through a levelling interlock switch and " up " and " down " levelling relays in such a manner that only one levelling operation can take place after a normal cage operation. The parts are arranged so that the gap between the contacts 9, 10 is beneath the contact 18 when the cage is at floor level, and the distance between the discs 7, 8 is equal to the distance travelled by the holder 17 as the cage moves from one floor to the next.
Patent GB-1082991-A (GB)
Title: Step-by-step box or carton partition strip feeding mechanism
IPC: B31B11/00
Filed: 1965-06-10
Abstract: 1,082,991. Making boxes. U.S. PARTITION & PACKAGING CORPORATION. June 10, 1965 [July 20, 1964], No. 24576/65. Heading B5D. In a machine assembling box partition blanks into a cellular structure, partitions are fed into the assembly area by a mechanism which reciprocates and acts through one-way grippers to advance each blank a step at a time. Partition blanks 50, one behind the other, are fed - in leftwards between guide cords 207 on a conveyer (206), Fig. 2 (not shown), to pass between guide fingers 210, Fig. 14. The partition blanks 50 are each received at their tops between inverted U-shaped channel guides 35 mounted on the tops of height-adjustable posts 51, themselves laterally adjustable along a frame member 61 adjustably secured in the machine. At the same time, the blanks 50 each pass between the posts 51 and adjacent posts (76), Fig. 5 (not shown), carried on the machine frame. Each post (76) mounts an adjustable spring finger (84) which biases the associated blank against the adjacent post 51. Each U-shaped channel guide 35 contains a spring- biased detent finger (118), Fig. 5 (not shown), carried by a slide block 110 hand-adjusted along the guide by turning a screw 111. As each blank 50 is passed through its channel guide 35, it slides leftwards under the detent finger (118), which engages slots 215 &c. in the blank to prevent its return rightwards. Each blank 50 is stepped forward by a spring-biased pusher finger 139 mounted at the top of a height-adjustable post 37 on a reciprocating carriage 38, there being a finger 139 &c. associated with each channel-shaped guide 35. The pusher fingers 139 engage the slots 215 &c. in the blanks 50, to slide the latter step-by-step along guide plates 96. The carriage 38 is formed with upper and lower guide rails 166 which move between horizontally-mounted rollers 158, the carriage also engaging verticallymounted rollers (161), Fig. 4 (not shown). The partition assembly machine drives through an eccentric (200), Fig. 3 (not shown), and links &c. (198, 197, 195, 192, 180) to reciprocate the carriage 38. When each blank 50 has been pushed forward into the assembly position shown, transversely-arranged blanks are inserted into the slots 215.
Patent GB-1512097-A (GB)
Title: Automatic focusing system
IPC: H04N5/232
Filed: 1975-06-09
Abstract: 1512097 Automatic control of focus BELL & HOWELL CO 9 June 1975 [26 Dec 1974 2 Jan 1975] 24605/75 Heading G3R [Also in Division H4]  Optical apparatus 10 comprises means 51 for automatically moving an element 22 along an axis for focusing an object 50, means 30, 31, 63 producing a pulsed train of light signals at a constant angle to the axis, a pair of photo receptors 41, 42 movable by means 51, and circuitry 60-80 for controlling means 51 in dependence on a difference signal 60c derived from the photo receptors. As described, apparatus 10 is a camera, means 31 is an infrared LED, and photo receptors 41, 42 are linked by a cam mechanism to a focusing ring 21 driven by a motor 51. It is stated that the amounts of reflected light received by receptor 41, 42 will only be equal when object 50 is in focus, otherwise difference signal 60c is sufficiently large to drive motor 51. As described, focusing is automatic between 5 and 25 feet, and manual otherwise. Means 70 are provided Fig. 4 (not shown) to increase the gain when object 50 is more than 10 feet away, and limit switches 80 Fig. 6 (not shown) decouplemotor 51 at 5 and 25 feet. The difference signal is fed to motor 51 via a sampling gate 62 and an amplifier 65, provided with means 66 to produce a control signal if signal 60c is absent (indicating that object 50 is far away) and with a stabilization network 90, Fig. 5 (not shown). Capacitors are also provided to block unwanted signals from 41 and 42 caused by sunshine or artificial illumination.
Patent GB-1048713-A (GB)
Title: Air flow control apparatus
IPC: F24F11/75
Filed: 1963-06-20
Abstract: 1, 048, 713. Fluid pressure servomotor control systems. GARRETT CORPORATION. June 20, 1963 [June 21, 1962], No. 24624/63. Heading G3P. Apparatus for controlling the flow of air from two compressor stages of a jet engine to a pressurized enclosure to maintain a predetermined flow rate comprises a first valve 26 which regulates the flow from one stage supplied past a non- return valve 22 and a normally closed second valve 28 which controls the flow from another stage and opens when the one stage is inadequate to provide the required flow rate. The flow to the cabin is measured by a Venturi 27, the pressure at the throat being fed through a conduit 58 to act on one side of a diaphragm 35 while the pressure at the entrance is fed through conduits 43, 44 to chamber 33 to act on the other side of the diaphragm. The pressure in chamber 33 is also supplied through orifice 45, conduit 46 and port 47 to a chamber 51, the rate of pressure increase in chamber 51 being restricted by a valve 55. Movement of the diaphragm 35 actuates a valve 40 through lever 37 to control leakage from the conduit 46. The pressure in chamber 51 acts on a diaphragm 50 in opposition to the entrance pressure supplied to chamber 52 whereby the valve 26 is adjusted to maintain a predetermined flow rate to the cabin. The valve 40 may also be subjected to cabin pressure acting on a diaphragm 63 and since the cabin pressure is regulated as a function of altitude, this provides a regulation of flow through the Venturi as a function of altitude. Cabin pressure may also act on a piston 66 loaded by a variable rate spring 65, this modulates the action of the valve 40 to provide a constant weight of air flow irrespective of changes in upstream or downstream pressure. If the flow from the one stage is inadequate to maintain the desired flow rate, the pressure upstream of the valve 26 drops suddenly and this drop is reflected in a chamber 97 through conduit 102 thus allowing a valve 83 to move to the left to the position shown in the drawing. Pressure from the other stage is then fed through conduit 84, pressure rate valve 86, valve 83 and conduit 77 to a chamber 73 to act on a piston 72 to open the second valve 28 to allow flow from the other source. The lower side of the piston 72 is connected to the duct 20 and prior to connect of the valve 83, the chamber 73 is connected by conduits 77, 106 to the downstream side of valve 26 so that the valve 28 is held closed. The non-return valve 22 prevents backflow to the one stage and when this pressure again rises, it flows past the non-return valve and causes the valve 83 to move to the right, closing conduit 84 and thus causing closure of the valve 28. Actuation of the valve 28 may be providby the position of the diaphragm 50 of valve 26 which controls a metering valve.
Patent GB-456189-A (GB)
Title: Improvements in and relating to windshield wipers
IPC: B60S1/38
Filed: 1935-09-04
Abstract: 456,189. Windscreen-cleaners. TRICO PRODUCTS CORPORATION, 817, Washington Street, Buffalo, New York, U.S.A. Sept. 4, 1935, No. 24642. Convention date, Dec. 24, 1934. [Classes 19 and 138 (i)] In a windscreen-cleaner blade, the flexible element of the blade has a longitudinal enlargement which is a loose fit in a channelled holding element,permitting bodily movement of the flexible element. In the construction shown, the wiping strip comprises a marginal enlargement 5, a reduced web 1<1> and a wiping head 11 formed with ribs 10. The enlargement 5 is loosely held in a channelled holder 2 and is prevented from longitudinal displacement by stops 6 on the holder engaging openings 7 in the wiping strip. The stops may comprise fasteners for a clip 8 to which the wiper arm is attached. The clip is U -shaped and is provided with an opening 12 and a slot 13 whereby the wiper may be attached to a hooked arm as shown in Fig. 5. The back wall between the openings 12 and 13 is slotted as at 14 to receive a stud 14 swaged over at 18 whereby the wiper may be attached to an arm of the slotted type shown in Fig. 1. The stud 15 overhangs the clip 8 to form an opening 21 so that a wiper arm of the type with spaced flanges may be secured to the clip by a removable bolt.
Patent GB-1367983-A (GB)
Title: Electrical circuit elements
IPC: H01L49/02
Filed: 1972-05-25
Abstract: 1367983 Resistors; inductors; component assemblies STANDARD TELEPHONES & CABLES Ltd 25 May 1972 24692/72 Headings H1R H1S and H1T A thin or thick film resistor element formed on an insulating substrate comprises a closed loop 1 (or a C-shaped element) of material, e.g. nickel-chrome, with conducting electrodes 2 and 3 contacting the inner and outer peripheries of the loop respectively, connection being made to the centre electrode 2 via a bridging conductor carried on an insulating bridge (not shown) across the resistor element or by an insulated extension 8 formed in a channel 7 in the resistor element and outer electrode. The resistor may be incorporated in planar, spiral inductors, being positioned at the centre of the spiral, for use in low "Q" tuned circuits, and also in RC networks, the film being formed on the surface of a substrate in which interleaved plates are embedded, Fig. 4 (not shown). Other closed loops may be used, i.e. annular, and formulµ for calculating the resistance across a square loop and annular loop are derived.
Patent GB-929757-A (GB)
Title: Pump, especially for a viscid mass
IPC: F04B15/02
Filed: 1960-07-16
Abstract: 929,757. Reciprocating pumps. J. KAESTNER. July 16, 1960, No. 24845/60. Class 102(1). A flexible inlet conduit 13 and an outlet conduit 25 are secured to a plate 14 which is movable to bring the appropriate conduit into alignment with the end of the pump cylinder. The inlet/outlet assembly may be hinged away from the cylinder when one guide bar 19 is withdrawn. The piston 2 may be withdrawn from the cylinder and hinged clear together with the actuator, about a pivot 8.
Patent GB-925328-A (GB)
Title: Improvements in or relating to trigger circuit arrangements
IPC: H03K3/2893
Filed: 1961-07-11
Abstract: 925,328. Transistor switching circuits. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. July 11, 1961 [July 14, 1960], No. 25026/61. Class 40 (6). In a Schmitt triggers circuit, controlled by a unidirectional input voltage, comprising transistors TS 1 , TS 2 , an initial voltage U 20  of opposite polarity to the input voltage is applied to the base of the transistor TS 1  through an impedance network including a negative temperature coefficient resistor NTC 2 , to stabilize the circuit against temperature variations. The circuit is described as a voltage discriminator, in which, when the input voltage exceeds a predetermined level, the state of the circuit changes to operate a relay in the collector circuit of TS 2 . The impedance network consists of an ohmic resistor R 11  in series with the resistor NTC 2 , the series combination being shunted by a further ohmic resistor R 12 .
Patent GB-680427-A (GB)
Title: Improvements relating to the production of chlorinated water
IPC: C02F1/76
Filed: 1948-09-25
Abstract: The free or available chlorine content of chlorinated water is controlled by adding chlorine to unchlorinated water, ascertaining whether any of the chlorine so added remains in a free or available condition by adding to a volume of the chlorinated water a quantity of a solution of neutral ortho-tolidine and a quantity of a dispersing agent which acts to stabilize the blue colour produced in the water by the reaction of the ortho-tolidine and the chlorine present in the water, estimating the nature of the free or available chlorine present indicated by the blue colour produced and adjusting the free or available chlorine content in accordance with the estimation. Phosphates, particularly sodium hexametaphosphate may be used as a dispersing agent, the pH being adjusted within the range of 5.5 to 6.5, by the addition of necessary of a buffer such as a mixture of citric acid or monosodium phosphate and disodium phosphate. Other dispersing agents such as alkyl aryl sulphates or sulphonates particularly sodium lauryl sulphonate may be employed, a buffering agent being added if necessary.  Estimation of the free chlorine may be effected by comparing the blue colour produced with standard colours, visually or photometrically, or by titration using ferrous ammonium sulphate.  In the latter case, separate estimations of free chlorine, monochloramine and dichloramine may be made by first titrating to give a reading for free chlorine, adding potassium iodide and titrating, the additional quantity indicating monochloramine, adding an acid followed by an alkali (e.g. sulphuric acid followed by sodium carbonate), and again titrating when the additional quantity indicates dichloramine.  If nitrogen trichloride is present it may be removed by extracting the sample with carbon tetrachloride and treating as before.  The difference between this reading and that for the free chlorine estimation of a similar sample without extraction multiplied by 1.5 gives the nitrogen trichloride content.
Patent GB-588154-A (GB)
Title: Improvements in rotary feeding and discharging apparatus
IPC: B65G53/46
Filed: 1944-12-15
Abstract: 588,154. Rotary pumps. COLLINS, J.N. Dec. 15, 1944, No, 25162. [Class 110 (ii)] [Also in Group XXX] In apparatus for feeding granular or farinaceous material, particularly where the material is fed to or discharged from a hopper and the flow line has to be maintained under suction or pressure, the material is delivered to the inlet of a flexible tube of elliptical crosssection disposed in a drum-like casing and fed through the tube by a rotor in the casing which distorts and nips the tube periodically to form a closed pocket. In the embodiment shown, material is delivered to a rubber tube b of flattened elliptical cross-section in a casing a, the tube being squeezed periodically at two points by rollers e on the arms d of a rotor mounted on a driven shaft c.
Patent GB-977785-A (GB)
Title: A new or improved mine roof support
Inventor: BAKER WILFRED EDMUND
IPC: E21D11/15
Filed: 1961-07-12
Abstract: 977,785. Tunnels &c. FISHER & LUDLOW Ltd. July 9, 1962 [July 12, 1961], No. 25166/61. Heading E1F. A lagging iron comprises a corrugated sheet provided at opposite ends with apertures adapted for engagement with the arches. In the embodiments shown in Figs. 1-3, and 4, the apertures 16 are adapted to receive the arch 17, the embodiment shown in Fig. 4 having a tongue 19 protruding into each aperture and adapted to coact with the flange 21 of an arch.
Patent GB-1461957-A (GB)
Title: Production of 1chloroanthraquinone
IPC: C07C67/00
Filed: 1974-06-06
Abstract: 1461957 1-Chloroanthraquinone BASF AG 6 June 1974 [7 June 1973] 25179/74 Heading C2C 1-Chloroanthraquinone is prepared by decarboxylating 4 - chloroanthraquinone - 1- carboxylic acid at elevated temperature in the presence of an N,N-disubstituted carboxamide. The carboxamide preferably has the general formula wherein the radicals R 1 , R 2  and R 3 , which are the same or different, are C 1  to C 4  alkyl, cyclohexyl, C 7  to C 12  aralkyl, or phenyl; or R 1  and R 3  together or R 2  and R 3  together may be members of a five- or six-membered heterocyclic ring; or R 1  may be or hydrogen; and the radicals and rings may bear groups which are inert under the reaction conditions as substituents. The reaction may be carried out in the presence of an optionally supported heavy metal catalyst containing a heavy metal of group Ib, IVb or VIIIb of the Periodic Table, and/or in the presence of a chelating agent.
Patent GB-1113564-A (GB)
Title: Improvements relating to claws for milking machines
Inventor: DYKE EDWARD
IPC: A01J5/04
Filed: 1966-06-06
Abstract: 1,113,564. Claws for milking machines. GASCOIGNES (RESEARCH & DEVELOPMENT) Ltd. 6 June, 1966, No. 25199/66. Heading A1M. A claw for a milking machine comprises a body 1 having a through bore la with which communicate a tube 5 leading to a milk receptacle and tubes 4 connecting with the teat cups, communication between the tube 5 and tubes 4 being controlled by a piston valve 13 slidable in bore 1 and retainable in the open position shown by engagement of pin 15 in slot 16, means being provided for admitting air into the interior of the claw when the valve is in its open position. The valve has an enlarged end 14 against which is fitted a sealing washer 30 which also seals against the claw body. The opposite end of the valve is provided with an annular groove 13b into which is fitted a flexible bellows 31 which also seals against the claw body and incorporates an eyelet 33 allowing passage of air into the claw. In a modification the air inlet is provided in the wall of tube 5.
Patent GB-658330-A (GB)
Title: Improvements in household implements for sieving, mashing and crushing
IPC: A47J19/00
Filed: 1949-09-30
Abstract: 658,330. Graters and mashers. MOULINLEGUMES MANUFACTURE D'TMBOUTISSAGE DE BAGNOLET M. E. B. ANCIENS ETABLISSEMENTS MANTELET & BOUCHIER, Soc. Anon. Sept. 30, 1949, Nos. 25219 and 25220. Convention dates, Oct. 6, 1948, and Aug. 1, 1949. [Class 28(ii)] In a domestic masher in which a handturned helical crusher forces foodstuffs through the perforated bottom of a container 1 the holding handle 8, 11 is bent down to act as a third foot contacting the table whereby the torque reaction caused by hand rotation of the handle 5 is eased. All the feet are formed of bent wire with a bottom loop each to hold a suction or friction washer 13 which may be further secured by a metal eyelet 14. The pair of wires of the handle 8 hold between them a hand grip 11. All the wires are secured at. the top in a curl-over of the top of the container 1. The feet 6 and 7 together or all the feet may be made of a single wire (9, Fig. 6, not shown).
Patent GB-186608-A (GB)
Title: Improvements in the treatment of skins
IPC: C14C1/06
Filed: 1922-09-19
Abstract: 186,608. Duckworth, G. Sept. 28, 1921, [Convention date]. Furs and furriery; treatment preliminary to tanning.-Skins, especially those of rabbits, hares, kangaroos, and opossums, are treated for the removal and recovery of the fur and hair without impairing the usefulness of the skins for the production of leather, by immersing them in a solution of sulphite of soda, then in a solution of ammonia, and finally subjecting them to a swe,ating process. The solution of sulphite of soda is of about 3 per cent strength, and the skins are soaked therein for about 12 hours to remove blood and fatty matter. The solution of ammonia contains about 4 pints of 880 ammonia in 4 gallons of water, and the treatment therewith is carried out in a closed vessel at a temperature of 80- 120‹ F. for about 12 hours. The skins are left in the sweating-vat for 12-24 hours, the time varying according to the strength of the ammonia solution used and the temperature at which the sweating is carried out. The hair is then removed by scraping or brushing, which operation should be carried out as soon as possible after the removal of the skins from the sweating-vat.