baber/WOPTO huggingface dataset:
Patent GB-1238546-A (GB)
IPC: B60G17/033
Filed: 1969-07-23
Abstract: 1,238,546. Regulating vehicle height. ALFRED TEVES G.m.b.H. 23 July, 1969 [26 July, 1968], No. 36989/69. Heading B7D. A vehicle height regulating system comprises a pair of pressure medium springs 23, 24, one at either end of an axle 28, and each connected to a respective chamber 5, 6 of a stabilizer 20 by ducts 21, 22, the stabilizer receiving the pressure medium via a pump 18 from a reservoir 16 into a chamber 2, and from the chamber 2 the medium passes to a level regulator 25 via duct 30, the regulator being operated mechanically by rod 27 from the axle, the arrangement being such that if regulator 25 requires addition pressure medium in the springs the medum passes from chamber 2 via chambers 5 and 6 to the springs, and if the medium is to be withdrawn from the springs it passes out from chambers 5 and 6 to chamber 3 and to the reservoir via duct 26, regulator 25 and duct 19. Under no circumstances can the pressure medium pass direct from one spring to the other.
Patent GB-1238578-A (GB)
IPC: E02F5/10
Filed: 1969-05-17
Abstract: 1,238,578. Releasable fastenings. HEPWORTH IRON CO. Ltd. 4 May, 1970 [17 May, 1969], No. 25251/69. Headings E2A and E2B. [Also in Division F2] Two forms of a clamp which may be expanded to grip the internal surface of a pipe 2 are described. In a first form, Fig. 8, a frusto conical member 15, carried by a cable 1À3, may be moved to the right to expand an annular rubber sleeve 16 having a tapered bore 17. The sleeve is located between washers 18 fixed on rods 19 which prevent movement of the sleeve to the right. In a second form, Fig. 14, a sleeve 31, sealed at 32 to a tube 13 may be expanded by compressed air led through the bore of the. tube and opening 33.
Patent GB-1238879-A (GB)
IPC: H05K7/14
Filed: 1968-09-12
Abstract: 1,238,879. Clips. HEWLETT-PACKARD Ltd. 12 Sept., 1968, No. 43489/68. Headings E2A and E2B. [Also in Division Hl] A planar member 10, such as a printed circuit instrument board, is retained in guides 14 by means of a spring latch 20 having a hole through which the corner of the board projects. The guides 14 are in the form of bent-up metal strips 16 secured at 22 to the frame, e.g. by rivets. The latch 20, which may be of metal or plastics, is integral with one guide, and if it is of metal, it may serve as an electrical earth connection.
Patent GB-1250967-A (GB)
IPC: G11B5/74
Filed: 1969-12-15
Abstract: 1,250,967. Magnetic recording medium. AGFA-GEVAERT A.G. 15 Dec., 1969 [17 Dec., 1968], No. 60971/69. Heading H1H. [Also in Division B6] A symmetrizing magnetic tape is made by printing parallel strips, of uniform width and spacing, of a magnetic suspension on to a carrier tape, using a printing cylinder in a rotary printing method. In Fig. 1 (not shown), magnetic suspension 2 in trough 1 is uniformly coated on to dipping cylinder 3 using doctor blade 5 and is transferred firstly to a toothed printing cylinder 6 rotating in close proximity (e.g. 0À1 mm.) to cylinder 3, and thence to carrier tape 8 on coacting cylinder 9. In one embodiment, the peripheral speed of printing cylinder 6 is greater than the running speed of carrier tape 8, in order to avoid build-up of magnetic solution on the rear edge of the strip, caused by the suction effect of the printing cylinder.
Patent GB-1251860-A (GB)
IPC: B23Q1/52
Filed: 1969-07-16
Abstract: 1,251,860. Milling; worktables. F. R. GLADWIN. 16 July, 1969, No. 35760/69. Headings B3B and B3K. Apparatus for milling a curved surface on a large workpiece 11 comprises a worktable 15 supported on and adapted to be reciprocated on a pair of curved guide rails 21 secured to the bed plate of the milling machine. The rails are received in correspondingly curved grooves on the underside of the table, the grooves being defined by guide bushings 19, 20. Reciprocation of the table is effected through a lead screw 29, the cutter 14 being advanced axially to machine the whole width of the workpiece.
Patent GB-1258001-A (GB)
IPC: F26B17/04
Filed: 1969-02-26
Abstract: 1,258,001. Drying apparatus. FORGES DE STRASBOURG, and PROMOCI PROMOTION DES CULTURES INDUSTRIELLES. 26 Feb., 1969 [13 Aug., 1968], No. 10330/69. Heading F4G.  A drying apparatus comprises an endless conveyer 2 for carrying material (e.g. rubber) through several drying zones, each zone being provided with its own air circulation system having a reversible blower 13 and heating means 10, a fixed side piece 17 mounted above and at each side of the conveyer 2, the spacing apart of the side pieces 17 being less than the conveyer width and the conveyer 2 being pierced with holes only in its part between the side pieces 17, and a flexible member 18 fixed to each side piece 17 and sealingly engaging the conveyer 2. The conveyer may be constituted by a metal fabric band or hinged plates. The drying zones may be defined by collapsible or removable partitions. The air flow in adjacent drying zones may be in opposite directions. The drying apparatus may comprise superimposed endless conveyers.
Patent GB-1266403-A (GB)
IPC: B65G47/91
Filed: 1969-03-20
Abstract: 1,266,403. Removing ceramic plates from moulds. NETZSCH MASCHINENFABRIK GEB. 20 March, 1969 [21 March, 1968], No. 14645/69. Heading B5A. [Also in Division B8] Ceramic plates 14, each conveyed from a drier in a mould located in rows along rockers 12 pivotally mounted between chain conveyers 10, are transferred to spindles 16 whereon they are trimmed, or to a conveyer (not shown), by suction heads 32 mounted between arms 26 which are arcuately reciprocable, through 180 degrees, to a position over the spindles 16 and beneath suction heads 42 which descend to engage and then lift the plates 14 from the heads 32, to provide clearance for the return arcuate movement thereof, and then lower the plates 14 for release on to the spindles 16. The arms 26 are reciprocated from the main drive shaft 24 by a crank 44 driven rack 46 and pinion 48. The suction heads 42 are mounted on a cross member 36 which is pivotally mounted between arms 34 mounted on a shaft 22 which is arcuately reciprocated, to perform the raising and lowering movement of the heads 42, via a lever 54 and follower 52 connection to a cam 50 on the mainshaft 24; arms 38 pivotally connected to the member 36 and the machine frame providing a parallelogram linkage whereby the heads 42 remain vertical. The suction effect of the heads 32 and 42 is controlled from cams 56 carried on the mainshaft 24 which actuate suction control vessels 84 and 68 which are each connected to one of the heads 32 or 42 by hoses 86 and 80. The vessels 84 and 68 may each comprise a cylinder and piston arrangement (not shown), or comprise a bellows (70), Fig. 3 (not printed), which is compressed against a spring (76), to release the suction, and expanded by the spring (76) to produce the suction, via the action of the cams 56 on a shaft (60) to which the bellows are mounted and which is guided, e.g. by guide rods 62, for reciprocable displacement radially of the shaft 24; the respective guide rods for the vessels 84 and 68 being arcuately separated whereby the required synchronization of suction and release to the heads 32 and 42 is obtained. The suction heads 32 or 42 each comprise a flexible bellows 98 laterally stabilized by a perforated disc 96 from which extends a guide tube 92 which slides in a holder 90, the bellows 98 contracting under the suction effect to lift the plate 14 out of the mould.
Patent GB-1267013-A (GB)
IPC: B65B43/28
Filed: 1970-09-24
Abstract: 1,267,013. Opening the mouth of a bag. HAVER & BOECKER. 24 Sept., 1970 [24 Sept., 1969], No. 45651/70. Heading B8C. ' The mouth of a bag or sack is opened by separating the lips of the mouth and then folding the lips outwardly by means of a pivoted tool 21, 22 at each end of the mouth. The lips may be separated by suckers 2 with each pivoted tool moving inwardly and having a U-shaped trailing portion 22<SP>11</SP>. The bag may be gusseted with the tools moving outwardly and having a flat trailing portion. Alternatively the lips may be separated by a blade attached to each tool which moves inwardly of a gusseted bag held in spring-loaded battens, and cuts the top of the inner fold. The outwardly folded lips may be folded downwardly by a pair of vertically movable, pivoted jaws.
Patent GB-1287838-A (GB)
IPC: F04D15/00
Filed: 1970-11-25
Abstract: 1287838 Gas turbine engine fuel control systems AVCO CORP 25 Nov 1970 56113/70 Heading F1G The invention relates to a fuel control system for a gas turbine engine in which the fuel pump is driven from the rotor assembly of the engine through an infinitely variable speed ratio transmission, there being means for controlling the speed ratio of the variable transmission so as to suit the fuel supply requirements of the engine irrespective of the rate of rotation of the engine rotor assembly. The engine shown comprises a fuel pump 32 which supplies fuel through a flowmeter 38 and line 18 to the combustion equipment 16, the pump being driven from the engine rotor assembly through a toroidal transmission 22 which comprises an input shaft 23 having a toroidal plate 24, and an output shaft 25 having a toroidal plate 26. Wheels 28 are disposed between the toroidal plates, the angle of inclination of the rotational axes of the wheels being variable so as to provide the variable transmission. The inclination of the wheel axes is effected by a torque motor 30 which receives signals indicative of scheduled fuel flow from flowmeter 38. The pump and transmission is shown in Figs.3 and 4, the input shaft and toroidal plate being indicated at 23, 24 and the output toroidal plate and shaft at 26, 25, the pump impeller 36 being formed integrally with the shaft 25. The input shaft 23 is mounted in a bearing 74 and the output shaft 25 in spaced bearings 78, 102, an alternator rotor 114 being mounted on the shaft 25 between the bearings 78, 102, and co-operating with a stator assembly 108, 116. The pump inlet line is at 124 and the outlet at 134. Three wheels 28 are disposed between the toroidal plates 24, 26, the wheels each being mounted on a shaft 86 which is mounted in a yoke 88, each yoke being mounted in bearings 90 in a frame 80 which is secured to the casing 70 of the transmission. The angular position of the shafts 86 is varied by means of a torque motor 96 the shaft 94 of which is connected to the yoke members 88. The comparator 42 and computer 44 are disposed within a casing 142 disposed around the intake duct 140 of the fuel pump. Carbon seals for the pump impeller are indicated at 136, 138. In a second embodiment the motor which varies the angular position of the wheel axes is a piston device which is acted on at its opposite sides by the pressures upstream and downstream of a metering valve disposed in the pump outlet line to the fuel burners.
Patent GB-1288868-A (GB)
IPC: H02K44/06
Filed: 1970-02-23
Abstract: 1288868 Discharging molten metal AEG-ELOTHERM GmbH 23 Feb 1970 [21 June 1969] 8594/70 Heading F4B [Also in Division H2] In controlling the flow of molten metal in an electromagnetic conveyer trough against the force of gravity by means of a travelling magnetic field, the field strength is raised to a value sufficiently high that a further increase in field strength would cause substantially no increase in the thickness of the layer of metal in the trough. Such a trough may be used for conveying molten metal, e.g. aluminium, copper, nickel or iron, from a holding or smelting furnace 1 to a collecting vessel 10, the trough 2 being associated with a three phase winding 3, The metal layer thickness and hence the quantity of metal conveyed may be varieo by changing the frequency of the supply to winding 3 or by changing the trough gradient, a lower frequency or lower gradient providing an increased layer thickness.
Patent GB-1295259-A (GB)
IPC: B08B7/04
Filed: 1969-12-02
Abstract: 1295259 Cleaning carpets, &c. LEIFHEIT INTERNATIONAL GNTER LEIFHEIT KG 2 Dec 1969 [2 Dec 1968] 58822/69 Heading A4F Apparatus for foaming and applying detergent, e.g. to carpets, and movable over material to be treated, comprises a container 12 for detergent to be foamed and from which detergent is passed to an absorbent element 18 so mounted that the apparatus is operable without direct compression of the element 18 by engagement with material to be treated, members, such as the members 16, 19, 20, mounted on opposite sides of the element 18, and driving means operated by movement of the apparatus over the material to be treated to produce relative movement between at least one of said members and the element 18 to compress the latter between the members. The member 16 is a non-rotatable hollow cylinder to which the element 18 is adhered and to which detergent is fed via a tube 15. The members 19, 20 are carried by supports 21 on a shaft 22 carrying wheels 23 on which the apparatus is moved to and fro to revolve the members 19, 20 to squeeze the element 18 against the cylinder 16 to generate foam, which passes through apertures 17 in the cylinder 16 to an applying roller 25 which has bristles or formatives of non flat or toothed discs 28, 29, Figs.3 and 4 (not shown). Other embodiments comprise (a) a fixed cylinder arranged for compressing an absorbent element within a rotary cylinder (b) an annular absorbent element compressible between inner and outer rollers (c) arrangements of three peripherally engaging rollers carrying absorbent elements and associated with either one or two foam applying brush rollers (d) an absorbent element carried by a roller rotatable in a cage formed by rods against which the element is squeezed (e) absorbent elements spaced along a roller by driving discs which roller over the surface to be treated and cause the elements to be squeezed against two rollers, and (f) absorbent elements spaced along two shafts by driving discs angularly arranged so that they squeeze the elements as they rotate.
Patent GB-1295305-A (GB)
IPC: F16B45/06
Filed: 1970-04-14
Abstract: 1295305 Hooks LEWALS Inc 14 April 1970 [25 April 1969] 17673/70 Heading E2A A plastics hook hanger has a pair of crossedover limbs 16, 18 which engage over a support 12 in opposite directions at 22, 22'. These limbs hinge at a bight or hinge 20 from which hooks 25, 26 project and which may carry a load 90. The limbs are latched together to prevent a twisting and accidental opening by means of tongues 38 43 engaging grooves 40, 42, see Fig. 6. In a modification (Figs. 8-11, not shown) projecting lugs (56) on the hooks 22, 22', prevent twisting of the legs relative to each other. In a further modification (Figs. 12 and 13 not shown) the hooks are secured by an interengaging tongue and slot (70, 73) connection, and the legs may also interengage at the cross-over. The hooks 25, 26 may be replaced by a single, central depending hook (80, Fig. 14, not shown).
Patent GB-1295699-A (GB)
IPC: B23B31/20
Filed: 1970-12-04
Abstract: 1295699 Chucks HOUDAILLE INDUSTRIES Inc 4 Dec 1970 [2 July 1970] 57743/70 Heading B3B A collet chuck comprises a housing 11 having an internal cam surface 17; a collet 12 contractible in response to axial movement against said cam surface and having a peripheral groove 22 axially remote from said cam surface; a lock nut 13 having a threaded engagement 18, 19 with said housing 11 and having a radially inwardly projecting flange 25 serving as a bearing race 26; a ring 14 disposed within said race 26; a ring 14 disposed within said lock nut 13 and extending radially inwardly into said collet groove 22, said ring 14 having portions 27, 28 engageable with opposite sides of said groove 22 and a portion 29 projecting radially outwardly to serve as a bearing race 30 and radially overlapping said flange 25; a series of bearing elements 15 trapped between said bearing races 26, 30; and a removable retainer ring 16 in said lock nut for holding said ring 14 and bearing elements 15 within the lock nut and for ensuring extraction of the collet 12 from the housing 11. A surface 27 of the groove 22, or alternatively a surface of the ring 14, may be spherical to ensure line contact, therebetween and the threaded connection 18, 19 is provided by loose fit threads to allow lateral or rocking movements during clamping. The bearing elements 15 are spaced axially aligned with the groove 22 and only a compression force acts on the ring 14 during clamping at an angle of 45 degrees to the axis of rotation of the chuck.
Patent GB-1296197-A (GB)
IPC: H03K17/73
Filed: 1970-01-21
Abstract: 1296197 Thyristor inverter circuits USTREDI PRO ROZVOJ AUTOMATISACE A VYPOCETNI TECHNIKY PRI MINISTERSTVU TECHNIKY 21 Jan 1970 [22 Jan 1969] 3058/70 Heading H3T A thyristor inverter, e.g. II contains a load resistor 22 and a thyristor 20 from whose anode an output 29 is taken, and an input terminal 311 is connected to the control electrode 201, through a delay circuit 30 including an RC circuit 312, 313, 321, in which R321 is significantly larger than R312. The input and output are connected in the Fig. 1 embodiment to the output and input respectively of similar stages I, III whose thyristors are off when thyristor 20 is on. When the supply U is pulsed positively, the positive potential appears at 24<SP>1</SP> to charge C313 so that thyristor 20 can be turned on by the same supply pulse U. Conduction of thyristor 20 short circuits C313<SP>11</SP> so that thyristor 20<SP>11</SP> cannot conduct, and this capacitor C313<SP>11</SP> prevents any transient impulses during the pulse U from passing to thyristor 20<SP>11</SP> gate. The resistor 312 may be bridged by a speed-up capacitor (322, Fig. 2, not shown) and a diode (35, Fig. 3, not shown) may separate R312 and R321. In further developments of the circuit, the delay circuit may have a plurality of first stages (310a, 310b, Fig. 4, not shown) each including a resistor and capacitor R312, C313 and receiving a respective input, and all connected to a single second part (320) including the resistor R321. The inputs in this case are each derived from the junction of two diodes (45a, 43a) are receiving an input signal and the other receiving a positive supply pulse 11 through a resistor (42a); several input signals may be applied to respective diodes (451, 452, 453, Fig. 5, not shown). The inputs are effectively combined in NAND or NOR relation. A bi-stable circuit (Fig. 6, not shown) is formed from one inverter as in I, Fig. 1, which derives its input from the output of a second inverter embodying some of the above modifications (Figs. 4 and 5, not shown) and which has an output fed to one of the inputs of the second inverter.
Patent GB-1301387-A (GB)
IPC: F04B53/12
Filed: 1970-03-20
Abstract: 1301387 Silencing gaseous flow NORDSON CORP 20 March 1970 [21 March 1969] 14171/72 Divided out of 1301386 Heading F1B The subject-matter is the same as that of the parent Specification, but the claims relate to the construction of the exhaust gas silencer.
Patent GB-1301425-A (GB)
IPC: D04B15/70
Filed: 1971-04-19
Abstract: 1301425 Knitting-machines H STOLL G STOLL E STOLL E STOLL J STOLL A STOLL R E STOLL and M STOLL 19 April 1971 [9 March 1970] 23250/71 Heading D1C In a flat knitting-machine the needles 12 are controlled by jacks 13, and selector jacks 20 which have associated butts 26 selectively movable out of the lock path by electrical pattern means. The butts are disposed in a staggered arrangement and the pattern means provided in stages accordingly. The jacks are pivoted at 15 to the needles and supported at the other end by a hook 14; and can be flexed so that the operating butt 16 is below the operating cams. To flex the jack the selector 20 is pushed forward so that its pivoted end 18 slides beneath a fixed bar 21. The selector movement is controlled by a bridging member 28 pivoted thereon, having an operating butt 26 and a selection butt 29. Prior positions E-L in their paths where the jack butts 16 can change tracks during movement of the carriage in either direction the butts 26 are depressed by cams 51-56 to present butts 29 to magnets 35 at positions D 2 . If the butts 29 are held thereby the selector 20 remains stationary, and the butt 16 remains engaged in the lock. Non-retained butts allow the other end to spring upwards, placing the butt 26 in the path of an advancing cam 57-63 following the magnet in the direction of carriage movement. The selector is thus advanced to depress the butt 16. The initial positions of the selectors are restored by retracting cams 64-68 acting when required on butts 24. The arrangement of butts 26, 29 are staggered (as shown) so that the magnets and cams are provided in corresponding rows A-C, A'-C'. The electromagnets are permanently energised and the two conditions provided for either by an opposing energisation or no further energisation respectively, or by an opposing or strengthening energisation. Retaining magnets D 1  are provided between the selecting magnets D 2 .
Patent GB-1304856-A (GB)
IPC: G01L1/04
Filed: 1969-08-21
Abstract: 1304856 Weighing apparatus; measuring force or weight W & T AVERY Ltd 20 Aug 1970 [21 Aug 1969] 41758/69 Headings G1N, G1W A load indicating apparatus comprises a resistant system and indicating means responsive to displacement of said system and is characterized in that the system comprises a primary resistant and a secondary resistant inter-connected so that the load is applied to both resistants, the resistants exhibiting respective mechanical hysteresis characteristics which are mutually compensating in their effect on the indicating means. The hysteresis characteristics of the resistants may either be of the same sign when the resistants are inter-connected so that a difference in magnitude of their respective displacements forms the indicated measure of magnitude of the load, or they may be opposite in sign when the resistants are inter-connected so that the algebraic sum of the values forms part of the measure of magnitude of the load. The primary and secondary resistants may be helical tension springs 11, 12 Figs. 3 and 4 and the springs linked end to end by a flexible band 14 passed around a pivotally mounted drum 15, carrying an indicating pointer 16. The primary resistant may be a tension spring 36 Fig. 5 connected to a lever 33 on one arm 35 thereof, the other arm 38 being divided into two parts 39 and 40 connected by a flexure strip 41 (the secondary resistant) to a rack 43 and pinion 44 device whereby angular movement of the lever 33 is shown against a dial 46. In a third embodiment, Fig. 6 pendulum units 53 act as the primary resistants and climb up ribbons 55 as the device is loaded, the upper ends of the ribbons being attached through a pair of bifurcated leaf springs 60 (the secondary resistants) to anchorage points on the frame 56. A fourth embodiment Fig. 7 (not shown) comprises a self indicating optical bench scale including a primary second order lever (70) fulcrummed on a rigid base (72) and linked to one arm of a secondary first order lever (74) the other arm being "broken", the two rigid parts being connected by a flexure strip (76) serving as a secondary  resistant. In a modified form of the above embodiment. Fig.8 (not shown) a self-indicating counter scale is described. In a fifth embodiment Fig. 9 (not shown) the load to be measured is applied as a vertical upwards force through a ribbon (90) to a pendulum drum (91) carrying a pendulum (92)  acting as the primary resistant, the drum mounting (94) being carried by a horizontal beam (96) connected to a flexure strip (97) acting as the  secondary resistant.  In a sixth embodiment Fig. 12 (not shown) a system using resistants with different hysteresis characteristics is utilized in which strain gauges embodied in the system are connected into a Wheatstone bridge Fig. 14 (not shown) whereby an electrical output proportional to the applied load results.