baber/WOPTO huggingface dataset:
Patent GB-898108-A (GB)
Title: Control mechanism for operating steam turbines
IPC: F01D17/26
Filed: 1960-09-29
Abstract: 898,108. Turbines. GENERAL ELECTRIC CO. Sept. 29, 1960 [Sept. 30, 1959], No. 33466/60. Class 110 (3). [Also in Group XXIX] In a control for a steam turbine having a plurality of steam admission nozzles around the turbine casing controlled respectively by valves 3, 3a in parallel, the valves are opened sequentially by a main governor control means 2 adjustable over a first speed range, and an upstream valve 18 positioned by auxiliary control means 21 adjustable over a second speed range overlapping the first range. For starting the turbine the auxiliary governor 25 is given a low speed setting at 23 and the main governor 15 a high speed setting at 13. Limit stop 14 is fully raised so that break-down link 16 expands and fully opens nozzle valves 3 via relay 5 and the turbine casing is heated uniformly. Limit stop 24 is now raised from its fully lowered position whereby link 26 expands and raises valve 29 supplying oil pressure to raise piston 20 and open pilot valve 18c by-passing main valve 18a so that the turbine reaches the low speed setting controlled by governor 25, governor 15 exercising no control, and small movements of valve 18c producing large followup movements of valve 29 via floating lever 28 and compound lever 31 pivoted at 37. Control is now shifted from governor 25 to governor 15 by increasing the speed setting at 23 and decreasing it at 13. Lever 36 of compound lever 31 then abuts stop 41 under spring load at 40 and follow-up lever 32 pivots at 38 whereby large movements of valves 18c and 18a produce small follow-up movements of valve 29, so that a small stroke of governor 25 then opens main valve 18a. Thus, during starting or under partial load, control is by governor 25 with broad or coarse regulation of and high ratio feed-back from valve 18 while for high speeds and full loads, control is by governor 15 through the sequential operation of nozzle valves 3, valve 18a then being controlled by governor 25 with narrow or fine regulation and low ratio feed-back. An intermediate pressure turbine 8 supplied by steam via reheat coils 7 may be controlled by valve 9 under the control of governor 15, 17 indicates the steam generating and superheating coils. Valve 18 also acts as a stop valve under the control of overspeed governor 20a. Governor 21 may be omitted and the low speed achieved by operating a handle moving link 27 and observing a tachometer. Valves 3 are operated through cams by a common actuator. Specification 580,933 and U.S.A. Specification 2,811,837 are referred to.
Patent GB-1087309-A (GB)
Title: Improvements in or relating to stabilization of polyacetals
IPC: C08K5/20
Filed: 1965-08-05
Abstract: A polyacetal composition comprises a formaldehyde polymer of molecular weight 10,000 to 200,000 and melting point over 170 DEG C., and from 0.1 to 30% (based on the formaldehyde polymer) of a poly(amide - acetal) of melting point 150-200 DEG  C. and molecular weight 1000 to 10,000.  The poly(amide-acetal) may contain the recurring unit:  <FORM:1087309/C3/1> in which each x is 4 to 16, y 2 to 12 and m 1 to 10, and may be prepared by reacting stoichiometric equivalents amounts of (a) a cyclic acetal of formula <FORM:1087309/C3/2> in which each R is hydrogen and/or alkyl of 1-6 carbon atoms and each x is 4 to 16 with (b) an alkylene diamine having 2 to 12 carbon atoms. A dicarboxylic acid may also be present especially one of formula <FORM:1087309/C3/3> where R is hydrogen and/or an alkyl group having from 1 to 6 carbon atoms and x is an integer from 4 to 16, e.g. dimethyl azelate.  A specified cyclic acetal is 3.9-bis-(7-carbomethoxyheptyl) - 2,4,8,10 - tetraoxaspiro - (5,5) - undecane while hexamethylene diamine is a specified diamine. Antioxidants such as hydroquinone, N - acyl - p - aminophenols and alkylene-bis-phenols such as 4,4 -butylidene-bis - (3 - methyl - 6 - tert. - butylphenol) may also be present.
Patent GB-329617-A (GB)
Title: Improvements relating to photographic copying apparatus
IPC: G03B27/36
Filed: 1928-11-16
Abstract: 329,617. Dunlop, S., (Pearson & Co.). Nov. 16, 1928. Projection printing-apparatus. - Continuous focusing adjustment is provided by means of two hyperbolic cams operating over the ratios of enlargement and of reduction respectively, and a spiral cam which comes into action for ratios of the order of 1 : 1. The light box 8 and negative holder 9 are mounted on a frame 7 sliding on vertical supports 5 to which the table 3 for the sensitive material is secured, and are moved by a hand wheel 17 driving an endless chain 22, Fig. 8, bearing a lug 24, which raises and lowers a counterweight 26 attached to the frame 7. The chain 22 also drives a wheel 34, toothed on half the circumference and engaging alternatively two complete gears 35 and 36. The lens 2 is mounted on a carriage 11 and connected by a bellows 10 to the light box 8. During the descent of the frame 7, the carriage is moved by a cam 12, Fig. 3, rotated by the frame 7, for example, by means of a spring barrel. When the frame 7 reaches the lowest point of its travel, the carriage 11 rests on a support 46, being then adjusted by a spiral cam 16 operated by the gear 36, through the transmission 51, 52. As the frame again rises a cam 50a unlocks the carriage 11 from its support and it is then lowered on the frame 46 by the cam 13 driven from the gear 35, the motion of the cam being transmitted by racks 39, 44 and gears 41, 42, 43. The hyperbolic cams have a central body on which are mounted eccentrics which support a flexible band forming the periphery.
Patent GB-1020443-A (GB)
Title: Improvements in or relating to machine tools
Inventor: CULL WILLIAM
IPC: B23C3/34
Filed: 1961-09-21
Abstract: 1,020,443. Copy-milling. BIRFIELD ENGINEERING Ltd. Sept. 7, 1962 [Sept. 21, 1961], No. 33747/61. Headings B3B, B3D and B3K. [Also in Division F2] A milling or grinding machine tool comprises a work-head 7 movable by power means about a horizontal axis 8 above its centre of gravity, so that a workpiece 3 to be machined along an arcuate path, such as for cutting the tracks in a ball-type constant velocity universal joint, can be mounted with the centre of the path on the axis. A programme of cutter approach, work movement and gradual in-feed of the cutter, indexing, and cutter withdrawal, is carried out under control of a cam drum 6 and a disc 20, advanced by a ratchet 24, and operating electric switches to control hydraulically-operated rack- and-pinion mechanisms 16, 33 &c. The cutter spindle 2 is mounted in a head 13 adjustable axially on slides 21 and fed by an hydraulic cylinder 25 against a cam 15 and two return hydraulic cylinders. Links 9 carrying the work-head 7 are swung about pivots 26 to-andfrom an operative position determined by shimmed stops 27, 28, by toggles 30 each having an adjustable link 34. The links enclose rack- and-pinion means for swinging the head at its natural frequency in a generating motion, the pinions being integral with the pivots 8. Oscillating with the head 7 is a control drum 38 driven through universal joints 44. The workpiece is clamped hydraulically and is indexed by pawls 48, Fig. 5 (not shown), on a ring 52 moved by rack-and-pinion gearing and locked by a plunger 68, Fig. 6 (not shown), moved by a spring 70 and released by an hydraulic plunger 67.
Patent GB-1492418-A (GB)
Title: Submarine launched devices
IPC: B63B22/00
Filed: 1975-08-13
Abstract: 1492418 Bathythermograph system SIPPICAN CORP 13 Aug 1975 [24 Jan 1975] 33809/75 Heading G1N A bathythermograph system for launching from a submarine comprising a housing 12, 14 carrying an element 51, e.g. a thermistor, responsive to a property of water to be measured; a lifting body releasably coupled to the housing 12, 14, being so shaped as to provide hydrodynamic lift and preferably including an air-filled float 110. An electric cable connected to the element Sl is in part stored in the lifting body and also provides a tether for, in use, connecting the system to the submarine. The releasable coupling comprises a double loop member, Fig. 7 (not shown), which is held at one end to the housing by springs 190, 192 and at the other end to the lifting body by tabs 182, 184, engagement of the member with the latter being ensured by coils of the cable. When the cable is payed out the coupling is released. The housing and the float 110 are both sealed by valve arrangements which are pressure resistive and which at a predetermined pressure open to allow the same to fill and sink. As the housing fills the element 51 which is housed in a probe 38 falls therefrom and measurements can then be commenced. Apart from the cable being coiled as aforesaid on the lifting body it is also coiled on a spool 62 mounted in the housing 12, 14. During transport of the system the housing is closed by a plug 200 and a cup 208. The firing tube of the submarine is provided with a cable clamp and a cable sheering device, Fig. 1 (not shown). The cable has a flat connector at its end for reception in a channel of a box, the channel having opposed pairs of spring-loaded contacts projecting thereinto. Signals are transmitted from the element to a recorder.
Patent GB-1059028-A (GB)
Title: Improvements in and relating to the separation of mixtures of textile fibres
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01G11/00
Filed: 1963-08-27
Abstract: 1,059,028. Separating and sorting fibres. RECLAMATION TRADES RESEARCH ORGANISATION Ltd. Aug. 27, 1964 [Aug. 27, 1963], No. 33870/63. Addition to 1,043,245. Heading D1F. [Also in Division B2] The apparatus for separating a mixture of textile fibres of the parent Specification is modified by the provision of electrodes 32, 33 behind the collecting surfaces. The collecting conducting material, such as polyethylene, and preferably one electrode is electrostatically charged and the other earthed.
Patent GB-486405-A (GB)
Title: Two-needle button sewing machine
IPC: D05B3/14
Filed: 1937-12-08
Abstract: 486,405. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) Dec. 8, 1937, No. 33943. [Class 112] In a two-needle button-sewing machine having a pair of opposed rotary chain-stitch loopers and a button-clamp vibrated relatively to the needles in a direction transverse to the plane of the latter, means are provided to position the limbs of the expanded needle-loops so that each looper can carry the succeeding loop through the previous loop. In the machine shown, the needles 9 reciprocate in a fixed vertical plane, and the button clamp 33 is vibrated laterally by mechanism such as that described in Specification 21128 /12, [Class 112]. The main looper-shaft 11, driven at the same speed as the upper main shaft, carries one of the loopers 12, the other being carried by a short shaft 13 driven from the shaft 11 by gears 17, 18 and a side shaft 16. The loopers are similar, but of opposite hand, to one another and run in synchronism, each comprising a loop-seizing beak 19, a loop-spreading wing 20, and an arcuate loop-spreading shoulder 22 adapted to hold the expanded loop high enough for the beak 19 to pass through it. A loop-positioning device 23, carried by a rocking shaft 25 which is actuated against a. return spring by a cam 11a on the looper-shaft 11, gathers the limbs of the expanded needleloops 27 and carries them across the path of the needles so that the next loops 29 are formed in a position to be carried through the expanded loops by the beaks 19. Needle-guards 31 are fixed on opposite sides of the loop-positioner 23 to prevent the needles from being struck by the looper beaks, and the stem 24 of the loop-positioner 23 also guides the needles. Thread-cutting and thread-end-holding means, similar to that described in Specification 183,586, [Class 112], but with the threadengaging parts duplicated, are provided. Specification 106,310, [Class 112], also is referred to.
Patent GB-1193795-A (GB)
Title: Front Wheel Suspension System in Motor Vehicles
IPC: B60G11/44
Filed: 1968-07-17
Abstract: 1,193,795. Steering knuckles; vehicle suspensions. FORD MOTOR CO. Ltd. 17 July, 1968 [30 Aug., 1967], No. 33945/68. Headings B7D and B7H. A front wheel suspension comprises a wheelsupporting swivelling link 9 connected at its upper and lower ends to transverse suspension members the link having a lower forged part 10 which is integral with the stub shaft 15 and an upper drawn sheet-metal part 12 which extends upwardly and partially around the tyre of the road-wheel. As shown in Fig. 2, the suspension comprises transverse arms, 7 and 3, a coil-spring 21, a vibration damper 23, and a stabilizer torsion bar 6 which extends rearwardly and outwardly at its ends to connect with the two front wheel suspensions and is pivoted in vehicle frame brackets 5. In a modification, Fig. 4, a transverse leaf-spring 24 seated in rubber bushes 25 replaces the upper suspension arm and coil spring, and two locating links 6<SP>11</SP> replace the torsion bar 6. A steering arm 20 may be connected to the upper part of the steering link.
Patent GB-1194540-A (GB)
Title: Jet Displacement Servo Valve
IPC: F15B13/043
Filed: 1967-07-24
Abstract: 1,194,540. Fluid-pressure servomotor systems. ABEX CORP. July 24, 1967 [July 29, 1966], No.33970/67. Heading G3P. The position of a valve 43 is dependent upon the degree of alignment of a cantilevered flexible jet tube 105 with a single orifice 108, the position of the jet being controlled by an electromagnet 13 which exerts a force in opposition to a resilient mechanical feedback connection 122 between the valve and the tube. The valve has a supply port 20, an exhaust port 23 and two service ports 22, 24 and is connected by the spring 122 to a coil assembly 74 which is suspended on pairs of J- or U-shaped spring supports 87, 96 in an annular gap between the polepieces 67, 72 of a permanent magnet 71 and connected by a non magnetic tubular element 94 to an adjustable loading spring 137. When no current is applied to the coil, fluid flows through the jet 105 and into the orifice 108, with which it is aligned by an adjustable stop 127, until fluid-pressure in chamber 62 moves the valve 43 to the right to flex the jet into a position of misalignment and compress the springs 122, 137 until equilibrium is again established. In this position, the ports 22, 24 are closed. Energization of the coil 74 reduces or increases the extent of misalignment in accordance with the polarity of the current and causes valve displacement in proportion to current strength. The supports 87, 96 may comprise leads for the coil current or separate flexible leads may be used. A tie wire (not shown) restricts movement of the jet in a direction at right angles to that of the valve.
Patent GB-911580-A (GB)
Title: Polyphase motor protecting switch
IPC: H01H71/16
Filed: 1960-10-04
Abstract: 911,580. Protective cut-out arrangements; thermal switches. ELLENBERGER & POENSGEN G.m.b.H. Oct. 4, 1960 [Oct. 24, 1959], No. 34022/60. Class 38 (5). A polyphase motor-protection switch having moving contact springs in each phase normally biased into contact with a respective fixed contact, has a common pivoted control member acted upon by a separate bimetal strip for each phase and a common rockable member having V-shaped recesses in opposite sides thereof by means of which it is suspended between the ends of the moving contact springs and the control member. The fixed contacts 11 are mounted on springs 9 secured by screws 8 to the base 1 and respective terminals 4. Each moving contact 12 is mounted on a spring 13 having a " claw-shaped " end inserted in a slot in a leaf-spring 14 so as to form a pivot. The other end of each spring 13 is formed as a knife edge 15 and engages in a V-shaped recess 16 in the common rockable member 17 which is made of insulating material and has further V-shaped recesses 19 in its opposite side engaged by knife-edge ends 22, 23 of a strips 20, 21 secured by rivets 24, 25, to the common insulating control member 26. The other ends 27, 28 of strips 20, 21 engage loosely in slots in parts 29, 30 secured to the base 1, the slots allowing pivotal movement of the parts 20, 21, 26. Screws 35<SP>1</SP> and nuts 36<SP>1</SP> secure the respective springs 14 and bimetal strips 34 together and to the base 1 and the heater windings 35 are connected to their respective bimetal strips at 36 and to terminals 5 at 37. As a bimetal strip 34 is heated its end engages a conical ended screw 38 in the member 26 to rotate it anti-clockwise against the bias of a spring 46 until the knife edges 22, 23 move over centre so that member 17 tilts clockwise and " snaps " the contacts 11, 12 open. As the bimetals cool the switch resets with a temperature differential which can be preset by means of the screws 38 and an adjustable stop screw 49 which engages the member 17. Ribs 41, 41<SP>1</SP>, 41<SP>11</SP> on the member 26 and ribs 45 on the member 17, together with corresponding webs 43 and recesses 42 on the base 1 form separate compartments for the phases. One bimetal strip may be omitted and, as shown in Fig. 7, the associated spring 13 may be arranged to control a set of contacts which close when the other contacts 11, 12 open.
Patent GB-885794-A (GB)
Title: Abrasive cutting devices
IPC: B28D1/12
Filed: 1959-10-07
Abstract: 885,794. Abrasive tools. CHRISTENSEN DIAMOND PRODUCTS CO. Oct. 7, 1959 [April 20, 1959], No. 34036/59. Class 60. An abrasive cutting device comprises a supporting member having an edge portion which enters in the work to be cut and which presents opposite side faces parallel with the direction of entry into the work, and an abrasive member or members bonded separately to each of such opposite side faces to provide a cutting face or faces together constituting a cutting surface transverse to the direction of entry with the edge portion of the supporting member extending at least almost up to the cutting surface, the cutting face or faces of the abrasive member or members on each of the opposite side faces of the edge portion being displaced with respect to the cutting face or faces associated with the other side face of the edge portion in the direction transverse to entry into the work. A wheel, Figs. 1 and 3, for cutting abrasive, coarse aggregates such as concrete and brick has a central support 10, e.g. of steel, with radial slots 12. Abrasive segments 14, 15 comprising diamonds in a matrix, e.g. of tungsten or tungsten carbide, are secured as by brazing, e.g. silver soldering, on opposite sides of the reduced thickness rim 18 of the support. The peripheral surfaces of the segments project beyond the peripheral surface of the rim 18, so that a rib 26 is left in the bottom of the cut made by the wheel. Alternatively, the surfaces may be flush, but the rate of wear of the rim 18 being faster than that of the segments, the rib 26 is still produced. In a wheel, Fig. 5, for cutting fine, dense aggregates such as marble, glazed tile, slate, granite and onyx, the segments 14a are separated by narrow gaps 30 and the segments 15a by narrow gaps 31, the gaps 30, 31 being within the confines of the radial slots 12 but out of alignment. Another wheel, Figs 7, 8, 9 and 16, for cutting fine dense aggregates has a support 10b without radial slots. The segments 14b, 15b are staggered. A wheel, Figs. 10, 11 and 12, for cutting coarse abrasive materials has segments 14c, 15c overlapping axially of the wheel. A tool, Figs. 13 and 15, for cutting cores from concrete consists of a rotatable cylindrical support 51 to which is secured, as by brazing, an annular bit crown 50 comprising rings 52, 53, 54 of diamond impregnated matrix separated by reinforcing rings 55, 56, e.g. of steel. The end faces of the abrasive rings may be flush with or project beyond the end faces of the reinforcing rings. In either case ribs 26d are formed in the bottom of the cut.
Patent GB-193577-A (GB)
Title: Improvements in ink bottles for draughtsmen
IPC: B43L25/00
Filed: 1921-12-17
Abstract: 193,577. Rottenburg, H. Dec. 17, 1921- Inkstands; pen-fillers. - A draughtsman's ink bottle is provided with a clamp which can be used alternatively to secure the bottle upon a table or drawing-board when it is in use, or to. secure a sealing-stopper of the kind provided with a pipette for filling a drawing-pen. As shown in Fig. 5, the flat base Q of the clamp is provided with a slot N, and the lower end of the clamping- screw 0 carries a disc P which is preferaoly free to turn. The pipette, Fig. 3, consists of a stopper K, of vulcanite or other material, traversed by a. tubular stem H and covered by a diaphragm L of indiarubber which is secured by a metal ferrule J of sufficient length to project above the diaphragm. An indiarubber washer V is provided on the lower edge of the. stopper. To secure an ink bottle upon a table or drawing-board, the clamp is inverted to receive the neck of the bottle within the groove N, while the base Q presses upon the shoulder of the bottle. The disc-head of the clamping-screw is screwed against the under side of the board or table. To clamp the sealing.. stopper and pipette in position, the bottle is placed upon the base of the clamp, and the clamping-screw is projected until the disc P presses upon the rim of the ferrule J and forces the stopper into position. A modified form of clamp, shown in Fig. 1, is made of bent metal rod. A disc B with a screw-threaded hole to receive the clamping-screw C is gripped between a looped portion of the rod, and the base comprises two U-shaped members with portions covered by indiarubber tubes E, F to engage either the base or the shoulders of an ink bottle.
Patent GB-1499838-A (GB)
Title: Toy motor cars
IPC: A63H29/20
Filed: 1975-08-15
Abstract: 1499838 Flywheel driven toy motor cars NOMURA TOYS Ltd 15 Aug 1975 34119/75 Heading A6S A toy motor car is driven by a fly wheel 4 and includes a safety device and a group of transmission gears 7, the fly wheel being fixed to a shaft 5 and the safety device comprising a pair of clutch members 6, 9 one of which (6) is attached co-axially to a face of the fly wheel or is integral with it and the other of which clutch members is attached to or forms part of an idler pinnion 8 which is rotatably and slidably mounted on the shaft 5, and meshes with one of the gears 7. A coiled spring 10 urges the idler pinion towards the fly wheel so that the clutch members 6 and 9 remain in mesh when the car is being driven freely by the fly wheel but disengage if one of the driving wheels is suddenly stopped. In use a player grips the body frame 1 of the toy and rotates the driving wheels 2 by pressing them repeatedly against a floor and drawing the car across it. The fly wheel 4 is thus accelerated and can be used to drive the car. The safety device prevents damage to fingers should they become trapped between a drive wheel and the body frame 1.
Patent GB-352363-A (GB)
Title: Improvements relating to drying apparatus, and particularly to apparatus of the continuously operating type
IPC: F26B15/14
Filed: 1930-11-13
Abstract: 352,363. Drying textile and granular materials ; elevated and rope railways. SOC. ANON. DES ETABLISSEMENTS NEU, 47, Rue Fourier, Lille, France. Nov. 13, 1930, No. 34180. Convention date, Nov. 13, 1929. [Class 34 (ii).] A continuously operating drying apparatus comprises wheeled trays 22 attached by the spindles of one pair of wheels only to endless chains 5 by which they are drawn along an upper track 2 and returned, by pushing, along a lower track 3, entry and exit being at the same end of the chamber 1. The passage of the trays from one track to the other is controlled by hinged tongues 13, 19 (the former being counterweighted at 16) which are operated by the free pair of wheels of the tray. Drying air is circulated by a fan 33 and passes through a heating radiator 34; damp air is exhausted by a fan 35 or flue.