baber/WOPTO huggingface dataset:
Patent GB-851226-A (GB)
Title: Improvements in or relating to ovens for dielectric heating
Inventor: NAYLOR JOSEPH FRANCIS
IPC: H05B6/78
Filed: 1957-07-25
Abstract: 851,226. Dielectric heating ovens. T. & T. VICARS Ltd., RADIO HEATERS Ltd., and WEST LANCASHIRE RADIO & TELEVISION LABORATORIES Ltd. July 24, 1958 [July 25, 1957], No. 23537/57. Addition to 768,725. Class 39(3). The dielectric heating oven of the parent Specification is modified by the provision of a screening hood the top of which is apertured to allow forced convection gaseous currents to pass downwardly therethrough on to the products passing on a conveyer band through the oven. As shown, the top of the hood is constituted by a group of spaced parallel tubes 10, e.g. of aluminium, of which three at each end, connected to brackets 19 of pulleys 20 by which the hood is suspended within the oven, and three spaced pairs, supporting insulators 17 carrying two balanced electrodes 16, have internal sitffeners 18. The electrodes 16 comprise groups of tubes which extend at right angles to the tubes 10 and which have contacts 21, 22 for power supply strips or leads (not shown). A cam follower 23 on one end wall 13 of the hood engages with an inclined cam surface on a stationary oven part so that vertical displacement of the hood within the oven is accompanied by lateral displacement; during movement of the hood the supply leads thus remain taut and do not short circuit.
Patent GB-989848-A (GB)
Title: A method for continuously controlling the operation of a stuffer-box crimper
Inventor: BLERK VICTOR BRUCE VAN
IPC: D02G1/12
Filed: 1962-06-19
Abstract: 989, 848. Crimping and measuring yarn. BRITISH NYLON SPINNERS Ltd. May 30, 1963 [June 19, 1962], No. 23537/62. Heading D1F. [Also in Divisions G1 and G3] The spatial frequency of crimps in nylon yarn or tow is measured photo-electrically (see Division G1) and the result used to control the pressure exerting means of a stuffer-box crimper. The output of the crimper head, Fig. 4, is held in a conveyer or J-tube type collector unit and withdrawn at a rate dependent upon the weight of the collector unit as determined by a collector unit contents detector. The tow is then taken at a tension of 100 gms through an orientation unit where the crimp frequency is measured.
Patent GB-1113437-A (GB)
Title: Apparatus and method for removing tree stumps
IPC: A01G23/06
Filed: 1964-06-06
Abstract: 1,113,437. Sawing. J. H. CORK. 19 Aug., 1965 [6 June, 1964], No. 23538/64. Heading B5L. A method of removing tree stumps from the ground comprises cutting the stump substantially vertically downwardly along at least one line of reference, cutting the earth, and thus the roots around the stump, attaching a rope, chain or the like successively to each cut section and drawing the sections from the ground in succession. In apparatus for carrying out the method, a bar 10, Fig. 2, at one end, is adapted to be attached to the three point linkage of a tractor, and, at the other end, carries a saw 13 mounted in slides 15 on the member 10 and connected to an arm 16 joined to a crank 16a adapted to be rotated by the power take-off of the tractor. In another embodiment, the saw 21, Fig. 3, is in the form of a segment which is rocked about a pivot 22 on the member 10 by a linkage 23, 24 driven by the power take-off of the tractor.
Patent GB-187095-A (GB)
Title: Improvements with regard to the rollers of sugar cane mills
IPC: C13B10/06
Filed: 1921-09-05
Abstract: 187,095. Aitken, H. W. Sept. 5, 1921. Rollers. - The ends of the rollers of sugar-cane mills are hermetically sealed by means of rings at the ends of the rollers welded to the roller and to the shaft. Divided rings e, Fig. 2, abut at one side against the roller a at h and at the other side against a shoulder on the shaft b at k. Solid rings g are shrunk on to the exterior of the rings e, and a ring r welded at p, q to roller and shaft respectively covers in the rings c, g and hermetically seals the end of the roller. The ring r may be in more than one piece, the portions being welded together at the same time as the ring is welded to the shaft and roller. In a modification, Fig. 5, the ring r is replaced by two rings r', r<2>, the ring r<1> being welded at p to the roller and at u to the ring g while the ring r<2> is welded at v to the ring g and at q to the shaft b. Instead of providing shrunk rings at the ends of the roller, the shaft may be formed with collars w, Fig. 6, at the ends.
Patent GB-316879-A (GB)
Title: Improvements in operating devices for trailable track points
IPC: B61L5/06
Filed: 1929-07-31
Abstract: 316,879. Telefonaktiebolaget L. M. Ericsson. Aug. 4, 1928, [Convention date]. Locking rotary elements by positive detents.- Electric points-motors have the main driving- shaft locked against rotation during movement of the slipping friction coupling by the points being trailed through, the lock being released by the action of the motor. The driving-shaft 14 carries a sleeve 25 with a pin 28 and with projections 32 engaging with lost motion recesses in a sleeve 26 pinned to the driven shaft 17. Pivoted to the sleeve 26 at 36, 37 are arms 23, 24 having pawls 43, 44 which engage the teeth of a disc 22 bolted to a bearing in the main casing. Initial movement of the shaft 14 causes the pin 28 to move the ends 40, 41 of the arms 23, 24 against the action of a spring 42 and disengage the pawls 43, 44 from the teeth of the disc 22. The pawls prevent movement of the, shaft 17 while the shaft 14 is stationary, so that the slipping coupling must absorb the whole of the motion caused by local operation of the points.
Patent GB-443025-A (GB)
Title: Improvements in or relating to apparatus for indicating and recording the dust content of blast furnace gases
IPC: G01N15/06
Filed: 1934-08-15
Abstract: 443,025. Electric signalling systems. BRASSERT & CO., Ltd., H. A.; Brook House, Walbrook, London.-(Wilhelmi, A., ; 33, Am Grafenbusch, Oberhausen, Rhineland, Germany) Aug. 15, 1934, No. 23587. [Class 40 (i)] [See also Groups XX and XVIII] The movements of a weigh beam are transmitted to a distance electrically. The weigh beam h moves a contact j<1> along a resistance j in circuit with a battery j<3> and solenoid j<2> having a spring controlled armature j<4> connected by lever j<5> to the recording pen i.
Patent GB-874275-A (GB)
Title: Improvements in or relating to magnetic core structures
IPC: H01F3/04
Filed: 1958-07-23
Abstract: 874,275. Magnetic storage devices. WESTERN ELECTRIC CO. Inc. July 23, 1958 [July 24, 1957], No. 23714/58. Class 38 (2). [Also in Groups XIX and XXXIX] Magnetic cores for information storage are formed by winding magnetic tape 13 (Fig. 1) tightly round sensing and read-out wires 10, 11, 12 each of part-circular cross-section and fitting together to form a cylindrical base on which the tape can be wound. The core structures may be heat treated after formation. The three wires are coated with magnesium oxide in unit 18 (Fig. 2), which also cuts and bends wire 12, are held together by the adhesive insulating coating thus formed and are wrapped with magnetic tape from 19, the tape being cut and welded in place by unit 24. The wires with the tape cores wound on them are stored on reel 26 and are subsequently cut into the lengths required for making up magnetic core matrices. One such matrix is shown in Fig. 3 in which the cores are secured to printed circuit board 30 by the bent ends 14, 15 (Fig. 1) of wire 12 which pass through holes in the board and are soldered on the underside to printed wires 33 to form the horizontal co-ordinate sensing wires. Wires 10 are similarly joined at opposite ends by printed wires 35 to form the read-out wire. In another structure (Fig. 6) which dispenses with printed wiring only one end of short wire 12 is bent and passes through board 30 to hold the core in position and half the cores are on one side and half on the other side of board 30. The wires and cores may be used to make multidimensional matrix structures.
Patent GB-750343-A (GB)
Title: Improvements in control gear for steam turbines
Inventor: TWYNHAM WILLIAM
IPC: F01D17/26
Filed: 1953-08-28
Abstract: 750,343. Fluid-pressure servomotor-control systems. ENGLISH ELECTRIC CO., Ltd. Aug. 27, 1954 [Aug. 28, 1953], No. 23815/53. Class 135. A hydraulic system including a servomotor for actuating the main steam valve of a turbine is controlled from a speed governor and by boiler pressure, and the variable hydraulic pressure actuating the servomotor is controlled by a leak responsive to boiler pressure in the sense of reducing the steam supply to the turbine with falling boiler pressure down to a quantity corresponding to a predetermined minimum load to be left on the turbine. The invention is described in connection with the control system disclosed in Specification 677,097. The pressure controlling the servomotor 25 actuating the turbine inlet valve 28 is subject to two variable leaks, one under the control of the speed governor 1 and the other, 152, under the control of the boiler pressure. The latter is applied to a bellows 129 which, through a floating lever 105, actuates a valve 115 controlling a servomotor 125 actuating the needle leak valve 152, and a feedback from the servomotor to valve 115 is obtained by connecting the servomotor to the floating lever 105. The control pressure produced in conduit 154 is fed back to act on a cylinder 119 which constitutes a seat for valve 115 and when, on a falling boiler pressure, the pressure acting on cylinder 119 falls sufficiently low for it to be overcome by the adjustable loading spring 118 of the cylinder, the latter will be moved down to recentre valve 115, and the turbine inlet valve 28 will be arrested at the position corresponding to the minimum load it is desired to keep on the turbine.
Patent GB-1593637-A (GB)
Title: Pulse-duration modulation circuit
IPC: H03C1/16
Filed: 1978-05-30
Abstract: For all-band transmitters, modulators with which high amplification efficiency, good modulation linearity and low harmonic or intermodulation distortion can be achieved are required. For this purpose, high pulse repetition frequencies are required. In the proposed PWM circuit, the anode of the modulation tube (PR) is connected via an oscillation coil (SS) to the earthed cathode of the high frequency output tube (HF), and via a free-running diode (FD) to the positive voltage output of the mains rectifier (GR). A low pass filter (TF) is connected in series before the HF output tube. To reduce transmission of low frequency signals via the rectifier (GR) into the alternating voltage mains (N), further filter elements or absorption circuits (FDr1, FDr2, Sk, C) are provided. <IMAGE>
Patent GB-227156-A (GB)
Title: Improvements in boilers for heating water and generating steam
IPC: F22B17/10
Filed: 1923-09-24
Abstract: 227,156. Murray, T. E. Sept. 24, 1923. Superheating tubes with external ribs.-The walls around the furnace of a boiler or superheater consist of groups of spaced vertical pipe-like members with welded or drawn flanges or plates which close the spaces between the members. The spaces between the members 20, Fig. 1, forming the side and end walls of a water-tube boiler are closed by plates 42. Each member may be formed by welding two channel irons together along their edges. The roof sections may also be formed of channel irons. The vertical members are connected to top and bottom horizontal headers. The front and rear groups are connected by water-tubes 62. The outer surfaces of the walls are covered with heat-insulating material reinforced with woven wire. The walls may consist of a group of spaced pipes 86, Fig. 7, with intermediate I or T irons 90, the flanges of which are welded to the tubes. The spaces between the tubes 86<a>, Fig. 9, are closed by over-lapping plates 100. The boiler tubes 102, Fig. 10, are of square-section and have T irons 106 welded to or drawn on them to close partly or wholly the spaces between the tubes. Groups of tubes formed in this manner may be used to form the walls.
Patent GB-799593-A (GB)
Title: Apparatus for producing slag wool from blast furnace slag
IPC: C03B37/06
Filed: 1956-08-02
Abstract: 799,593. Slag wool. DORTMUND-HORDER HœTTENUNION AKT.-GES. Aug. 2, 1956 [Aug. 8, 1955; Nov. 29, 1955], No. 23895/65. Class 56. Apparatus for making slag wool from blast furnace slag comprises a tilting vessel 1 into which the slag is charged and from which the melt is discharged at a substantially constant rate into a stationary vessel 6 having an outlet 8 adjacent the slag-disintegrating blower A. The vessels are heated by burners 5, 9 and the hearths may have cooling jackets. More than one tilting vessel may be used.
Patent GB-1130164-A (GB)
Title: Slide valves
Inventor: SPENCE PETER
IPC: F16K11/065
Filed: 1965-06-04
Abstract: 1,130,164. Valves. DOWTY HYDRAULIC UNITS Ltd. 19 Nov., 1965 [4 June, 1965], No. 23897/65. Heading F2V. In a parallel slide valve, the slider has a main port 32 in permanent communication with a supply pressure through a passage 35 in the , casing 12 to 16, Figs. 1 to 3 and 5 (not shown). The slider is arranged to direct pressure fluid into one or the other of two service ports 48, 49, Fig. 5, in the casing, or from these ports to exhaust at 24, Fig. 6. The slider includes a pair of unloader ports 54, 55 extending transversely through it. When the slider is in a neutral position, these ports register on one side with ducting 60, 61 in the adjacent casing part 12 which communicates with the valve inlet 19, and on the other side the unloader ports register with ducting 65 communicating with the exhaust 24. Two such slide valves are associated together in one casing. The unloader ducting 60, 61 is bifurcated from the inlet 19, 35. Similarly, the ducting 65 on the other side of the first valve bifurcates into two ducts 62, 63 cooperating with the two unloader ports 54, 55 of the second valve, and these ports co-operate with a single duct 67 communicating with the exhaust 24. The supply to these two valves is commoned through a passage 26, Fig. 3, and individual check valves 20, 22 precede the entry supply ports 35, 34 into the valve chambers. A relief valve 25, Fig. 3, can by-pass the supply directly to exhaust. Balance ports 56, 57 and 58, 59 are provided in association respectively with the supply and unloader ports which in turn have associated inching grooves 70 to 75. In neutral position these balance ports register with the service ports so that the services S 1 , S 2  are held in a state of hydraulic lock.
Patent GB-1138901-A (GB)
Title: Method and apparatus for producing perforated memory cards
IPC: G09B29/00
Filed: 1966-05-27
Abstract: 1,138,901. Record sheets. J. KESSLER. 27 May, 1966 [28 May, 1965], No. 23992/66. Heading B6E. Perforated memory cards are produced by inserting a plurality of categories of data into at least one document having a plurality of predetermined positions for the data, superimposing over the document a stencil having at least one window of predetermined shape and location to select a predetermined category of data from the document, and perforating a memory card to record the selected predetermined category of data. The data may relate to the payment of periodically due annuities, e.g. patent renewal fees, and may be inserted into first or second documents depending upon whether the annuities are due for payment after or before the date of expiry of a period of exemption from payment. The documents (Figs. 1 and 2), may be adapted to receive each category of data in a plurality of columns, at least one column receiving entries common to at least two categories of data, the remaining entries for each of the at least two categories being in columns unique to that category, each stencil having at least one window which selects the entry in the at least one column and at least one further window which selects the entries in the unique columns. The documents may each have a compartment (g), for recording the date of the beginning of the period of exemption, the compartments being connected by a respective visual indicator (f) to respective scales showing a first symbol indicating the said date, and comprising a series of compartments, a first portion of each scale being adapted to receive further symbols indicating that the document contains data relating to annuities due for payment after the date of expiry of the period of exemption but within one year of the beginning of the period, and a second portion of each scale being adapted to receive further symbols indicating that the document contains data relating to annuities due for payment after the date of expiry. The first document may have a further visual indicator connecting the first portion of the scale to a table adapted to receive data concerning annuities due after the date of expiry, and the second document may have a further visual indicator connecting the second portion of the scale to a table adapted to receive data concerning annuities due before the date of expiry.
Patent GB-282882-A (GB)
Title: Improvements in or relating to buckets and bucket elevators and dredges
IPC: E02F3/14
Filed: 1926-09-29
Abstract: 282,882. Cothay, F. H., and Ropp Tin, Ltd. Sept. 29, 1926. Discharging devices for endless belt & chain elevators.-For removing clay and like materials from buckets, skips and bucket dredgers or elevators, water is introduced under pressure to the interior of the bottom of the bucket behind or underneath the material. In Figs. 1 and 3, buckets 13 of an elevator or dredge have cast &c. therein passages 15 with reduced mouths 16, - the passages widening rearwardly and opening into the bottom of the bucket behind a lip 19 which deflects the clay etc.; the openings are interrupted by spaced bars. A pipe 22, supplied with water under pressure, is pivotally supported in bearings 23 and carries nozzles 21 through which water passes in a close jet to the passages 15; to extend the period of supply to each bucket, the pipe 22 is oscillated by means of a counterweight 30 and a lever 28 carrying a roller 29 engaging a cam, striker &c. 27 carried by the upper tumbler 10 or other suitable part. The pipe 22 has limited endwise movement under control of a lever 42, shaft 41, lever 40 and a flanged roller 33 engaging the bucket chain, whereby the jets are maintained in line with the passages 15 in spite of sideways movement of the bucket chain on the ladder. In Figs. 4 and 5, the passages 15 are formed bv ribbed recesses covered by a plate 52 and have laterally opening mouths protected forwardly by cowls 51. The shaft 58 of the upper tumbler has a carrier 57 rotatably supporting a sheave 56 provided with a counterweight 88 and a radial arm 55 provided with a slot 72 in which a slide 71 is adjustable by screws 73, 74;the. slide supports' a nozzle 50 in a ball and socket mount, the nozzle being radially adjusted by a screw 77. The carrier 57 carries radially movable pawls 59 which coact with an abutment 60 on the arm 55 to move the nozzle to extend the time of supply of water to each bucket 13. Rollers 61 on the pawls 59 engage a cam groove 60 in a cam 63 supported on the carrier 57 and adjustably held by a screw 65; each pawl is disengaged from the abutment 60 when the roller 61 thereon enters an offset part 70 of the cam groove 62, the counterweight 88 then returning the nozzle. Adjustable cushioning means 89 is provided for the counterweight 88. A second arm 55 and nozzle 50 may be provided so that two buckets are supplied with water simultaneously. In both forms, means may be provided to cut off the water supply during return movement of the nozzles. Specifications 12439/98, [Class 69, Hydraulic machinery &c.], and 190,347, [Class 78 (iv), Loading &c.], are referred to.
Patent GB-680384-A (GB)
Title: Improvements in can sealing machines
IPC: B21D51/32
Filed: 1950-10-02
Abstract: 680,384. Seaming cans. LUNDH, H. Oct. 2, 1950 [Oct. 5, 1949], No. 24080/50. Class 83 (iv). In a can-head or like seaming machine the seaming last moves vertically during the seaming operation and actuates means forcing seaming rollers against the seam. The seaming last 2 for the can 1 is vertically slidable in the machine frame 20 and carries a rotating roller head 5 driven through a belt on a pulley 21 on a sleeve 19. The sleeve 19 is rotatably fixed on the frame 20 and coupled to the head 5 through a key 22 which is axially slidable in a keyway 23 in the sleeve 19 to permit relative axial movement. The head 5 has projecting arms 8, 9, Fig. 2, carrying seaming rollers 12, 25 at one end of each of two levers 10, 26 which are balanced so that the rollers tend to move outwards under the action of centrifugal forces when the roller head 5 rotates. The lever 10 carrying the first seaming roller 12 has a lever 14 pivoted at its other end and carrying a roller 17 which engages a cam face 18 on the end of the sleeve 19 when the roller head 5 is raised so that the seaming roller 12 is forced inwards to engage the seam. A balance weight 14<SP>1</SP> normally tends to move the roller 17 inwards against the cam under the action of centrifugal forces, a projection 24 on the lever 14 locating it in position. On further raising of the head 5 the roller 17 over-runs the cam face 18 so that the seaming roller 12 is released. The lever 26 carrying the second seaming roller 25 has a rigid projecting arm 28 carrying a roller 29 which engages a second cam face 30 on the end of the sleeve 19 to force the roller 25 in engagement with the seam. This roller 29 is arranged below the level of the roller 17, or the heights of the cam faces 18, 30 are arranged so that the first seaming roller 12 is engaged and released from the seam before the second seaming roller 25 is actuated. The cans are carried to the seaming position over a pair of rails by a chain between the rails having catches extending above the rails to engage the cans and intermittently moved by a ratchet-gear between the seaming operations. Cam-operated verticallyreciprocating plungers for raising and lowering the cans in synchronism with the intermittent movement of the chain are arranged below the seaming stations and have recesses on their upper ends for the passage of the chain.
Patent GB-1112247-A (GB)
Title: Improvements in packaging machines
Inventor: CROOK GERALD FREDERICK
IPC: B65B61/08
Filed: 1966-05-31
Abstract: 1,112,247. Wrapping machines; packages. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND) Ltd. 20 April, 1967 [31 May, 1966; 18 Jan., 1967], Nos. 24084/66 and 2592/67. Heading B8C. An apparatus for feeding a length of web material 12 to an article, e.g. a batch of cigarettes 7, for wrapping it into a block-ended package, comprises a knife arrangement 5, 6 that makes perforations across the web, e.g. of tissue backed foil, in two places 13, 14 before severing the length 15 from a reel 1. As shown, the knife 6 rotates so that firstly a blade 8, notched along the edge (11), Fig. 2 (not shown), as it reaches the stationary blade 5 cuts perforations 14, then a similarly notched blade 10 cuts a further set of perforations 13, and lastly a blade 9 severs the length of web at 15. Alternatively, the perforating may be done by a single notched blade separate from the severing blade. The perforations 13, 14 enable the upper or cap end of the wrapper to be removed from the cigarettes 7 by tearing. The cigarettes 7 are fed along by conveyer means. The web is fed by driven rollers 3, 4.