baber/WOPTO huggingface dataset:
Patent GB-303011-A (GB)
Title: Improvements in and relating to synchronous inductor frequency changers
IPC: H02K47/24
Filed: 1928-12-20
Abstract: 303,011. British Thomson-Houston Co., Ltd., (Assignees of Merrill, F. W.). Dec 24, 1927, [Convention date]. Rotary transformers. - A frequency changer combining in a single unit a synchronous reaction motor and an inductor-alternator comprises an alternating-current energizing winding on the primary member, polar salients on the secondary member corresponding to the pole-number of the energizing winding, these parts constituting the synchronous motor, and also teeth or the primary member and on the polar salients of the secondary member, the teeth being spaced to produce inductor-alternator distribution of flux in the secondary teeth on which is wound a high-frequency inductor-alternator winding. In in the form shown, the rotor 11 having twelve teeth carries a two-pole, two-phase winding 12 fed through slip-rings 13. The stator 10 is formed with teeth spaced for a tooth-pitch of <1>/24th of the circumference and of approximately the same dimensions as the rotor teeth, but some are omitted to provide two polar salients. The stator carries a squirrel-cage winding 15 whereby the machine can be run up to synchronous speed as a two-pole motor. The stator teeth carry seriesconnected coils 16 wound alternately in opposite directions and the arrangement is such that all the coils on one main pole which are adjacent to rotor teeth at any instant are connected in reverse direction to all the coils on the other main pole which are adjacent to rotor teeth at the same instant. When the machine runs at the two-pole synchronous speed, the two-pole field is stationary in space so that the teeth at one side of the stator may be considered to be a north pole and the teeth on the other side a south pole. The flux therefore shifts backwards and forwards between adjacent stator teeth so that a highfrequency voltage is induced in the winding 16 by inductor alternator action. The stator coils may be connected in parallel. In order to reduce to a minimum the effect of the flux on the squirrel-cage winding at synchronous speed, the bars 15 are located between adjacent pairs of teeth so that the flux in passing from one tooth to another does not cut a bar. In a modification, the primary winding is on the stator and the high-frequency and squirrel-cage windings on the rotor. A single-phase primary winding may be employed, in which case the secondary member may carry a repulsion motor starting winding.
Patent GB-922986-A (GB)
Title: Improvements in or relating to pass-through coal breakers
IPC: B02C4/12
Filed: 1959-11-06
Abstract: 922,986. Roller-and-breast mills. A. OELLRICH, [trading as MASCHINENFABRIK UND EISENGIESEREI.A. BEIEN.]. Nov. 6 1959 [Nov. 15, 1958 (2)], No. 37745/59. Class 59. A coal breaker for co-operation with a conveyer device comprises a vertically movable rocker 1 carrying a driven breaker roller 6, the rocker being mounted on side parts 4 of a substructure 5, the rear end of the rocker being connected to the sub-structure through a pivot joint 2 and brackets 3, and the front end of the rocker being connected to the sub-structure through compression cylinders 7, a breaker plate 9 secured between the side parts 4 being shaped as a conveyer channel and being replaceable either individually or together with the substructure. The conveyer device is in the form of a plate or trough conveyer 8. The plate 9 has the ends of its base preferably tapered off at 9<SP>1</SP> and has side flanges 10<SP>1</SP> supported on and secured to the side parts 4. Feed walls 11, which extend beyond the leading edge of the conveyer, may be secured to the plate 9 or to the side parts 4. The parts 4 may be coupled together by ties 12. In a modification, Figs. 3 and 4 (not shown), the conveyer device is in the form of a belt conveyer. In another modification, Fig. 5 (not shown), the coal breaker is arranged at the upper end of a spiral shoot. In a further modification, Fig. 6 (not shown), the coal breaker is arranged as a transfer shoot between two belt conveyers.
Patent GB-318856-A (GB)
Title: Improvements in delivery apparatus for printing presses
IPC: B65H33/10
Filed: 1928-12-22
Abstract: 318,856. Goss Printing Press Co., (Assignees of Richter, C. J.). Sept. 10, 1928, [Convention date]. Delivery apparatus. - Newspapers delivered from a printing machine by means of an S-fly 20, Fig. 2, and endless belt 24 are separated into counted batches by means which grip one of the papers at intervals and displace it relatively to the remainder of the papers. Each gripper, of which there is one at each side of the machine, Fig. 1, comprises an arm 27 mounted on a, rock-shaft 28 and a jaw 50 pivoted thereto. Cam parts 37, 38, 39 on a rotating disc 36 operate the shaft 28 through a roller 35 on an arm 34 so as to move the gripper into position adjacent to the usual guide 19 so as to receive a paper at the required time, and then lower it on to the belt 24 forward of the position the paper would otherwise occupy. The frequency of operation of the shaft 28 may be doubled by pivoting a shield 40 to inoperative position so as to allow a second set of cam parts 37, 38, 39 on the disc 36 to operate on the roller 35. In order to open and close the jaw 50 at the required times, a second cam 59 is provided on the shaft 26 of the disc 36, which moves a pivoted arm 56 into position to engage a collar 60 fixed to a. link 52 pivoted to the jaw 50 but slidable against the action of a spring 54 in a lug 53 on the arm 27. The arm 56 controls the sliding movement of the link 52 so that the jaw 50 is open when the gripper is raised and, in its inoperative position, allows it to close on the paper at the required time so as to grip the paper until it has been deposited on the belt 24 and sufficient succeeding papers have accumulated to prevent the displaced paper from moving. The grippers are then opened and caused to move laterally along the surface of the paper. For this purpose, the. grippers are carried by sleeves 29, 30 respectively on the shaft 28 pressed towards one another by springs 32 and formed with cone-shaped ends 44. A forked lever 45, actuated from a cam 48 on the shaft 26 through a roller 47, is interposed at the required times between the cone ends 44 and moves the grippers laterally out of engagement with the paper.
Patent GB-1443517-A (GB)
Title: Plant irrigation devices
IPC: A01G9/24
Filed: 1972-08-15
Abstract: 1443517 Treating plants UNITED KING- DOM ATOMIC ENERGY AUTHORITY 18  July 1973 [15 Aug 1972] 37985/72 Heading A1E In a plant-irrigation device for growing plants within an enclosure, water is vapourised by solar heat and condensed on the inside of the enclosure. Reflective surfaces are provided to modify the radiation. A film 5 of plastics material encloses at least part of the surface of soil 2 bounded by a moisture-proof barrier 3. Condensate collects in troughs 8 or on ledges 6 from which it is fed by ties 7 to the plants 1, 11. Rain may provide a source of water and the catchment area may be increased by an extension of the barrier as at 3b. The film 5 which may be used to modify the radiation spectrum reaching the plants may extend under the soil to the side 3b. A trough 9 of local water may be an additional source and some plants I may tolerate the local water while others 11 can be irrigated only by condensate. In a reservoir of acceptable water aeration may be effected by solar heat. The device may form part of a hydroponic system.
Patent GB-1019306-A (GB)
Title: Improvements in or relating to the treatment of ground
Inventor: LISTER ROBERT BROWNING
IPC: A01G13/02
Filed: 1963-09-26
Abstract: A covering for sports pitches or other surfaces comprises a sheeting of plastics or other material held in contact with a ground surface or a wall (Figs. 5-7 not shown) by water filled tubes integral with and adjacent the edges of the sheeting. Alternatively the sheeting may have a plurality of tubes adjacent its edges.  Hot air is introduced beneath the sheeting by a blower.  The sheeting may be held in the position of (Fig. 2 not shown) by the air passing beneath it, or alternatively it may be supported by frames (Fig. 4 not shown).
Patent GB-1391886-A (GB)
Title: Rolling test stand
IPC: G01L5/13
Filed: 1973-08-10
Abstract: 1391886 Vehicle test stand: measuring torque electrically BROWN BOVERI & CIE AG 10 Aug 1973 [12 Aug 1972] 38047/73 Headings G1N and G1W A vehicle test stand comprises a hollow shaft 3, a cylinder 17 supported by bearings on the shaft 3, a pair of drums mounted on the cylinder 17, an induction motor consisting of a stator 8 and a rotor 7 fixed respectively to the shaft 3 and cylinder 17, an adjustable frequency changer for supplying power to the stator 8, and means for measuring the torque on the stator 8. In Fig.1 the shaft 3 is mounted in bearings 41, 42, and an arm 5 rigid with the shaft bears on a load cell 6 to measure the torque on the stator. In an alternative embodiment Fig.2 (not shown), the shaft 3 is clamped against rotation and carries strain gauges. The induction motor may be a three phase motor and the rotor may be a squirrel cage. The speed of the rotor 7 may be measured by a tachometer 12 which supplies a signal to a computer which adjusts the output of the frequency changer to produce a torque corresponding to the simulated vehicle speed, the measured torque signal being also supplied to the computer. A blower 10 is provided to cool the induction motor. The induction motor may be driven by or may drive the wheels.
Patent GB-1268883-A (GB)
Title: Improved stuffer crimper
Inventor: HODGES JAMES RENNISON
IPC: D02G1/12
Filed: 1969-07-30
Abstract: 1,268,883. Stuffer box crimping. JOSEPH BANCROFT & SONS CO. 30 July, 1969, No. 38358/69. Heading D1F. A stuffer crimper comprises a chamber 10 having a saddle 19, a pair of filament feed rolls 11, 12, a sliding support 32 at one side of the chamber, a fixed stop 35 adjacent the saddle 19 to position the saddle relative to the feed rolls 11, 12, a spring 47 holding the saddle against the stop 35 and permitting sliding movement of the chamber 10 along the sliding support to accommodate longitudinal expansion of the chamber, and resilient means 45 engaging the other side of the chamber for holding the chamber in engagement with the sliding support 32 while permitting expansion of the chamber in a transverse direction. The chamber 10 is preferably formed in two halves 14, one half 14 being provided in its bottom wall with a longitudinal groove 31 which engages with the sliding support 32 which is preferably in the form of a fixed rod located in a groove in the surface of a bar 34 the position of which is adjustable by means of screw 37. The bar 34 slides on posts 35 and 36, which also prevent longitudinal movement of the rod 32. The post 35 engages a groove 41 in the wall of the chamber. A similar post and groove arrangement 43, 44 is provided in the other half 14 of the chamber 10. The springs 47 are located on bolts 46 which secure the chamber to a framework member 27d. Means may be provided to adjust the axial alignment of one of the feed rolls to ensure parallelism between the axes of the rolls. A traversing yarn guide 82 is provided to feed yarn to the rolls 11, 12. The exit end of the chamber 10 may be provided with a spring held bottom wall 97 which when depressed by the crimped material contacts a switch to actuate the take-up means. Alternatively the switch may control thedrive to the feed rolls. The position of the feed rolls 11, 12 relative to the saddle 19 may be adjusted by suitable mounting of the shafts of the rolls, and this subject matter is described and claimed in Specification 1,268,885. Mechanism for varying the spacing between the rolls and the parallelism thereof is described and claimed in Specification 1,268,884.
Patent GB-1530887-A (GB)
Title: Safety disconnect electrical switch
IPC: H01H21/00
Filed: 1977-09-19
Abstract: 1530887 Mechanical switches; snap-action CUTLER HAMMER WORLD TRADE Inc 19 Sept 1977 [26 Oct 1976] 38992/77 Heading H1N In an electric switch having a movable contact 24 co-operating with a fixed contact 20 under the action of switch operating means such as a snap-action cam follower 30, a separate safety disconnecting arrangement is provided to open the circuit in the event of the contacts 24, 20 being welded together. As applied to a double pole switch actuated by a trigger 14, a pair of parallel contacts 24 slide on a fixed support 10e of the casing and yielding supports comprising pivoted terminal connections 36 urged upwardly by tension coil springs 40. On movement of the trigger 14 the coupled slider 16 carrying a projection 16e moves against the action of a return spring 18 and causes cam follower 30 to snap endwise together with contact carrier 28. The cam follower 30 is resiliently held in the contact carrier 28 by a resilient arm 28g whereby on release of the trigger 14 and failure of the contacts 20, 24 to separate the follower 30 moves against the arm 28g so that its support legs 30e, 30f drop into holes 28h, 28j in the carrier 28 so that the ends 24b of the contact lift clear of the ends 36d of the terminals 36 whereby the terminals 36 are lifted by the springs 40 to open the circuit.
Patent GB-334815-A (GB)
Title: Improvements in or relating to cutting apparatus employing cutting burners
IPC: B23K7/00
Filed: 1929-12-20
Abstract: 334,815. Oberbau Ges., and Hillmann, W. Dec. 20, 1929. No Patent granted (Sealing fee not paid). Perforating and dividing by fusion.-In a blowpipe apparatus for cutting metals of the type in which the burner is arranged vertically below a tracer which is guided on a drawing or pattern, both sides of the pattern table 1, 2 serve to guide the apparatus which comprises frames 7, 8 connected by spring-pressed bolts 10 and each provided with three ball bearing supports 13, the upper frame carrying the motor 5, handle 6, and tracer which is guided on a drawing or pattern. 16. The burner may be adjustable by a rack and pinion. The legs 3 of the table may be adjusted so as to incline the table for making an inclined cut.
Patent GB-1400572-A (GB)
Title: Vehicle power-steering operated by fluid pressure
IPC: B62D5/08
Filed: 1972-08-22
Abstract: 1400572 Power assisted steering SOC ANON AUTOMOBILES CITROEN 22 Aug 1972 39150/72 Heading B7H A power assisted steering system for a vehicle includes a servomotor 1 of the differential type, the smaller chamber of motor 1 being connected to the source of pressurized fluid and the supply of fluid to the larger chamber being controlled by a movable distribution assembly 11 which co-operates with a control element 12 on the steering column 13 and on which assembly stresses engendered by the fluid pressures exerted on either side of the piston 3 are proportionately applied and in opposition to each other to provide "feel", the distribution assembly including a slide valve 23 which is arranged to close a passage leading to the larger chamber of motor 1 when in a rest position and to connect this passage to the source of fluid pressure, when displaced in one direction from the rest position, and to connect this passage to a fluid discharge passage when displaced in the other direction from the rest position, the pressure of the larger chamber being directly applied to one end of the slide valve. As described the distribution assembly is connected by line 16 to fluid pump 18 and accumulator 17, by line 20 to a reservoir 19, by line 21 to the smaller chamber of motor 1 and by line 22 to the larger chamber of motor 1. In a first embodiment (Fig. 2) the distribution assembly includes a body 11a housing a slide valve 23 connected to a lever 12a on the steering column 12 and a reaction piston 24 connected to the opposite side of the lever 12a. A passage 31 connects the smaller chamber of motor 1 to the piston 24 and to the pump line 16. A passage 27 connects the larger chamber of motor 1 to a chamber 32 at one end of valve 23 which in its neutral position blocks the passage 27 and in its operative position connects the passage 27 either to pump line 16 or reservoir line 20 depending on the direction of turn. The areas of the valve 23 and piston 24 correspond to the areas of the chambers of the motor 1, the arms of the lever 12a being of equal length. In a modification (not shown) the housing 11a surrounds the lever 12a which has a single arm, the valve 23 and piston 24 being arranged on opposite sides of the arm. In this case the valve 23 and piston 24 may be of equal area and are connected to the arm at different locations or may be of unequal area and connected to the arm directly opposite each other. In a second embodiment (Fig. 5) the pressure of the smaller chamber of motor 1 is applied directly to a chamber 35 at the opposite end of valve 23a to chamber 32, the areas of chambers 35 and 32 corresponding to the areas of the piston 3. In this case the valve 23a is positively connected to arm 12e by link 34.
Patent GB-812485-A (GB)
Title: Improvements relating to mechanism for retarding the delivery of cardboard and like blanks from machines
Inventor: BISHOP EDWIN LESLIE
IPC: B65H29/68
Filed: 1956-12-24
Abstract: 812,485. Sheet delivery apparatus. DERITEND ENGINEERING CO. Ltd. Dec. 23,1957 [Dec. 24, 1956], No. 39158/56. Class 100(1) Mechanism for retarding the delivery of cardboard and like blanks m from a machine c by which they have been treated and wherein the treated board is passed between initial twin delivery rollers k which run at a predetermined speed comprises pairs of secondary rollers e, g and d h, between which the board is passed, running at a reduced speed, the lower rollers c and d being connected by endless belts f. The two sets of delaying rollers e, g, and d, h are mounted on a frame a which runs on rails b attached to the machine c so that the mechanism may be used for different sized boards. The roller d is driven by a motor d<1>. The rollers h, g are slidably mounted in slots in brackets h<2> and g<2> so as to be gravity biased towards the rollers d, e respectively. A slanting guide plate j is provided over a grid i between the rollers k and e, g. The roller g is offset slightly forwardly of the roller e so that blanks may be presented at an angle correspnding to the slanting plate j.
Patent GB-362193-A (GB)
Title: Improvements in telescopic curbs or fenders
IPC: F24B1/198
Filed: 1930-12-31
Abstract: 362,193. Domestic fenders. BULLOCK, J. W., 76, Belmont Row, Birmingham. Dec. 31, 1930, No. 39255. [Class 126.] An adjustable fender of the kind in which end sections 2 telescoping in a centre section 1 each carry a toothed rack 11, 12 engaging a pinion 14 on the centre section, which is thus rendered selfcentring, comprises an enclosed reinforcing or guide-bar 3 mounted in the interior of the end sections and passing through the centre section. In the construction shown, the bar 3 is of channel section and passes through bridge-pieces 7, 8 which are secured to the end sections, and slide over the bar when the end sections are being adjusted. The bar is anchored by means of a pin 5 riveted to it and projecting into a recess 6 in the central section 1 ; the pin 5 also forms the pivot of the pinion 14. The racks 12, 13 are located in and guided by the channel bar 3. The Provisional Specification describes a modified construction in which two pinions are employed. Specification 355,996 is referred to.
Patent GB-971628-A (GB)
Title: Process for preparing high molecular weight polymers
IPC: B01J19/00
Filed: 1960-11-17
Abstract: 971,628. Polymerization reactors; controlling mixing by viscosity. GOODYEAR TIRE & RUBBER CO. Nov. 17, 1960 [April 20, 1960], No. 39485/60. Headings B1C and B1X. [Also in Division C3] In producing polymers by condensation reactions accompanied by an increase in viscosity whilst agitating the reaction mixture, after the power required by the agitator reaches a preselected value, it is supplied at a constant level to the agitator whereby degradation due to too rapid stirring of a viscous material, or long reaction times due to slow agitation are avoided. The process may be applied to linear polyamides, linear polyesters and alkyd resins. In the example, an initial stirring speed of 102-104 r.p.m. was employed with a temperature of 430- 560 ‹F. and a pressure of 0À1 mm. mercury. As polymerization progressed, more power was used to maintain this speed but when 24 kilowatts was reached, this energy was maintained while the revolutions fell to 35 r.p.m. The polymerization reactor 7 has a jacket 9 for cooling liquid, an outlet 8 for product, a stirrer 11 driven by motor 14 through a variable speed drive 13 and reducing gear 12. The power supply is maintained constant by a power controller 15 and the variable speed drive.
Patent GB-1102760-A (GB)
Title: Improvements in or relating to apparatus employing sand or other solid particles and for the drying of paper, board or pulp webs, formed from cellulosic fibrous material
Inventor: LUCKINS JOHN
IPC: F26B13/10
Filed: 1964-09-28
Abstract: 1,102,760. Drying webs; heat treatment in fluidized beds; heating granular materials. BRITISH PAPER & BOARD INDUSTRY RESEARCH ASSOCIATION. 28 Sept., 1965 [28 Sept., 1964], No. 39514/64. Headings F4G and F4U. In apparatus for drying web material A in a fluidized bed, the particles of the bed are fiuidized between baffles 12 by gas from two primary and two secondary gas inlets 7, 9 in the lower section of a container 1, and are heated in a chamber 13 at each side of the baffles 12 in two stages formed by a first heating chamber 28 including baffles 50 . . . 55 through which the particles descend in countercurrent flow to hot gases derived from a second heating chamber 38 in which the particles are heated in co-current flow to hot gases from a burner 26. Any particles carried upwardly with the web are directed by curved deflectors 29 into the upper portion of each first chamber 28 and the gases are exhausted therefrom and from each chamber 28 through an aperture 36 beneath a shroud 34 in each deflector. Particles may be fed into each chamber 38 through hoppers 58 and pass downwardly into the chambers 13 for upward fluidized passage in contact with the web. The container is formed of two relatively displaceable and separable halves 60, 61 for positioning of the web.
Patent GB-1329048-A (GB)
Title: Railway points
Inventor: DOHSE R
IPC: E01B7/06
Filed: 1971-08-25
Abstract: 1329048 Flexible points ELEKTRO-THERMIT GmbH 25 Aug 1971 [26 Aug 1970] 39935/71 Heading E1G In a railway switch wherein the tongues 3, 4 have resilient parts 10, 11 adjacent to fixed heels on rails 1, 2 and have means for bending them between either of two positions in which they adjoin eithier main rails 5, 7 or branch rails 6, 8, wedges 32-35 are slidably mounted on the sides of rails 5-8 and have means for sliding them selectively into or out of a position in which they bridge the gaps 28-31 between the tongues and the rails to thereby either lock or release the tongues. The means for moving the tongues and wedges may comprise double acting pneumatic or hydraulic cylinders 18-27; 38-41 or electrical or mechanical means. Guides may be provided in the tongues to receive the wedges, which wedges may be of nickel steel coated with P.T.F.E. and may be adjustably mounted. There may be two wedges per gap 28-31.
Patent GB-1394253-A (GB)
Title: Split bearing bush
IPC: F16C9/04
Filed: 1972-08-30
Abstract: 1394253 Bearings GLYCO-METALLWERKE DAELEN & LOOS GmbH 30 Aug 1972 [10 Sept 1971] 40143/72 Heading F2A The two halves 2, 3 of a split bearing bush for a connecting rod bearing are detachably held together by retaining devices 11 which engage the halves on the radially outer surface of the bush. Each retaining device 11 comprises a bar, the ends 12 of which engage in bores 10 in the halves. In further embodiments, each device comprises: (a) a spring clip with recurved ends which engage in recesses in the halves; (b) a cruciform spring clip; (c) a circlip which engages around a boss formed across the join between the halves; (d) a nut which screws on to a threaded boss formed across the join between the halves. The bush may be retained axially in the housing by means of locking pins.