baber/WOPTO huggingface dataset:
Patent GB-1373852-A (GB)
Title: Distributors for liquids
IPC: D06B1/00
Filed: 1972-04-11
Abstract: 1373852 Textile treating apparatus COLGATE-PALMOLIVE CO 11 April 1972 [13 April 1971] 16625/72 Heading D1L For use in combination with a perforated dryer drum a distributor for liquid textile conditioners which comprises an elongated container having a filler opening, a removable closure for the opening, means suitable for engaging perforations in the drum to attach the container to the drum, and a surface with a series of fluid discharge aperatures extending therethrough, preferably covered with a porous covering e.g. felt or a porous plastics. The means for attaching the container to the drum is preferably a clip which also secures the porous covering. Figure 4 shows a container 22 provided with a porous covering 84 for transferring liquid metered through openings 30, when in the dead centre position shown in Figure 9, wherein the container is secured on the inner surface of a dryer drum 34. The drum 34 is provided with a series of perforations 36 to receive a securing clip 38.
Patent GB-919641-A (GB)
Title: Improvements in or relating to control systems
Inventor: ROBINSON KENNETH ARTHUR
IPC: H02P9/34
Filed: 1958-05-23
Abstract: 919,641. Automatic voltage control. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. May 21, 1959 [May 23, 1958], No. 16675/58. Class 38 (4). In a control system the saturating current of a magnetic amplifier is controlled by an amplifier the output of which is fed back to a trigger circuit in the input of the control amplifier so that the output of the latter is repeatedly switched between high and low values, the relative duration of which is dependent on a control signal applied to the control amplifier input. In Fig. 1 deviations of the output voltage of a potentiometer 3, representing the voltage at output terminals 2 of a generator G, from a value determined by a reference voltage 4, are automatically corrected by applying the error voltage derived by a resistance network 5 to vary the relative periods of maximum and minimum output of a transistor amplifier 9 produced by a trigger circuit 19, e.g. a transistor multivibrator, operating continuously by virtue of feed-back through an integrator circuit 20. The average energization of the saturating winding 11 of a magnetic amplifier 10 controlling the current to generator field winding 1 from an A.C. source 13 through a rectifier 14 is thus adjusted to correct the generator voltage.
Patent GB-931517-A (GB)
Title: Improved brushes, e.g. paint brushes
Inventor: CRAWFORD CYRIL GUNN
IPC: A46B15/00
Filed: 1960-05-11
Abstract: 931,517. Paint brushes. JOHNSON & JOHNSON. July 25, 1961 [May 11, 1960], No. 16675/60. Class 19. A brush comprises a synthetic plastic handle 7 secured to a synthetic plastic ferrule 5 and bristles 4 secured within the ferrule by means of a wedge 1 which is resiliently compressible to accommodate swelling of the bristles sufficiently to prevent any substantial damage to the ferrule. The wedge may take the form of a V- or U-shaped steel spring but preferably comprises a resiliently compressible polythene tube. Specification 889,336 is referred to.
Patent GB-200672-A (GB)
Title: An improved fastening for doors, gates, boxes and the like
IPC: E05B67/36
Filed: 1922-06-16
Abstract: 200,672. Macdonald, H. J. June 16, 1922. Hasp locks.- In a fastening of the kind wherein a staple d on the door a passes through a slot in the doorbar b and fits into a cavity in a metal block g and is secured by a locking-pin l passing through the eye of the staple, the block g is provided with marginal flanges j between which the bar b lies, whilst the flanges contact the face of the door.
Patent GB-855134-A (GB)
Title: Improvements in or relating to electric switches for controlling the supply of current to the heating circuits of an electric cooker
IPC: H01H3/00
Filed: 1957-05-27
Abstract: 855,134. Interrupters. MIDGLEY, A. H., and MIDGLEY, A. M. May 15, 1958 [May 27, 1957], No. 16771/57. Class 38 (5). A switch comprises contacts 1, 1<SP>1</SP>, mounted on leaf-springs 5, 6 and having cams 4, 7, which bear on springs 5, 6, respectively. Cam 4 is mounted on a motor-driven shaft whilst cam 7 is mounted on a sleeve surrounding the shaft, Fig. 1 (not shown), the sleeve being rotated by a lever 8 having a knob 10. Cam 4 opens and closes the contacts 1, 1<SP>1</SP>, once during each revolution of the shaft and cam 7 varies the initial contact setting by means of the lever 8 and a graduated scale 11, thus determining the time for which the contacts 1, 1<SP>1</SP>, remain closed during each revolution of the shaft. Several of these switches may be mounted side by side with their driving shafts in line for driving by a common motor, or with a common driving shaft.
Patent GB-1498943-A (GB)
Title: Plastics fasteners
IPC: F16B19/00
Filed: 1974-04-17
Abstract: 1498943 Releasable fastenings ITW Ltd 16 April 1975 [17 April 1974] 16796/74 Headings E2A and E2B [Also in Division F2]  A one piece wire fastener 10 comprises a head 14 and a shank 12; a slot 16 common to the head and shank; in the head 14 a transverse passage 22 opening into the slot for receiving a wire 36; a bore 24 through the head, opening into the slot, and an integral pin 26 held aligned with the bore by a frangible rib 28. In use, when the fastener is inserted into a cavity 38 the pin 26 is driven into the bore 24 which is coextensive to the slot 16 so that the shank 12 grips the cavity 38 by friction. Protruberances 32 may be provided to assist frictional gripping. The legs formed by the slotted shank may diverge towards their free ends when not in use, and the fastener may have a cross-section other than circular to resist rotation.
Patent GB-417476-A (GB)
Title: Improvements in thermionic valve caps and valve holders
IPC: H01J19/66
Filed: 1933-06-13
Abstract: 417,476. Thermionic valve caps and holders. M-O VALVE CO., Ltd., Marconi House, Strand, London, EDEN, C. G., and SMITHELLS, C. J., c/o General Electric Co., Wembley, Middlesex. June 13, 1933, No. 16826. [Class 39 (i).] A valve cap comprises a cylinder 1 of moulded insulating-material provided with a shoulder 2. Four contacts 3 are spaced unequally around the cylinder and are attached thereto by end strips, bent at their upper ends 5 into slits in the material and at their lower ends 4 over the rim. The lower ends have slots to receive the connecting wires to the electrodes within the valve and one strip is extended upwards to form a connection 6 for a siren connected to the cathode. The socket to receive this cap comprises contact bars 8 spaced apart by two parallel insulating-plates. The upper ends of the bars are bent over and an insulating cover plate (not shown) is placed over these ends. The cap contacts may be springy or, as shown, leaf springs 11 are formed on each contact bar by bending over its end. Specifications 247,937 and 274,431, [both in Class 39 (i)], are referred to.
Patent GB-1445808-A (GB)
Title: Thermal stabilisation of a polyurethane elastomer or sealant
IPC: C08L75/00
Filed: 1974-04-17
Abstract: 1445808 Improving the thermal stability of polyurethanes MITSUI TOATSU CHEMICALS Inc 17 April 1974 [18 April 1973] 16855/74 Heading C3R The thermal stability of polyurethane elastomers or sealants is improved by incorporating therein during the manufacture of the polyurethane or by subsequent treatment of the polyurethane a compound of the formula wherein R 1  and R 2 , which may be the same or different are C 1-4  alkyl, m is 0 or 1 and n is 0 or 1. Suitable compounds are catechol, 3-methyl catechol, 4-methyl catechol, 4-tert-butyl catechol or 4,6-di-tert-butyl catechol. It is preferred to manufacture the polyurethanes by mixing an isocyanate prepolymer with a hardening agent containing the stabilizing compound.
Patent GB-315070-A (GB)
Title: Improvements in or relating to jewelry
IPC: A44C17/02
Filed: 1928-06-11
Abstract: 315,070. Zieher, O. June 11, 1928. Mounting and setting gems and the like. - A mount or setting e for a precious stone f or the like carries two resilient hinged eyes g which may be turned into parallel relation, as shown in Fig. 3, to pass through a hole d in an element c and then turned at rightangles and locked on studs or projections h, carried by an element b on a ring a or the like article of jewellery, Fig. 5. The element c may be omitted.
Patent GB-325450-A (GB)
Title: Improvements in, or relating to, manually operated starting devices for internal combustion engines
IPC: F02N1/02
Filed: 1929-06-01
Abstract: 325,450. Bartlett, B. G. June 1, 1929. Turning-gear.-In a manually actuated engine starter, an axially movable shaft a carries a member d for engagement with a clutch pin i on the engine shaft ž, and is driven from the shaft s of a starting handle t through gear wheels p, l and an intermediate floating gear u having no fixed axial support or annular bearing, concentric rolling surfaces r, v, m being provided on each gear adjacent to the teeth. As shown in Figs. 1 and 2, the gear p is fixed on the shaft s and the gear u engages splines on the sliding shaft a, the gears being enclosed in a fixed casing n provided with ball bearings o, q. In a modification, the floating gear is an internally toothed annulus having internal rolling surfaces concentric with the pitch circle. The rolling surfaces are formed by the peripheries of shrouds or rings on each side of the gear wheels, which are concentric with and may be equal in diameter to the pitch circle of each gear, so that the rolling surfaces abut when the gears are in mesh and prevent the gears from meshing too deeply. As shown in Fig. 6, the rolling surfaces m are formed on the peripheries of rings 11 each provided with a boss 12 pressed into a recess 13 in the side of the gear, and a sleeve 14 on the ring may engage the boss 15 on the gear. In other forms, the rolling surfaces are formed on annular rings running on ball races on the bosses 15 of the gears, or on discs fixed on these bosses, the diameters of the rolling surfaces being less or greater than the pitch diameters of the gears. In a further form, the gears are each mounted on ball, roller, or plain bearings on a sleeve rigidly connecting the rolling surfaces on each side of the gear. When the rolling surfaces are of large diameter, they may be formed with a rib 24, Fig. 9, on one rolling surface fitting a groove 23 on the other. The gears may have helical teeth or the cycloidal, epicycloidal, or hypocycloidal type of generated teeth.
Patent GB-444523-A (GB)
Title: Steam heating system
IPC: F24D1/00
Filed: 1935-06-12
Abstract: 444,523. Heating by circulation of fluids. CASTELLAZZI, G. A., 4, Via E. Cernuschi, Milan, Italy. June 12, 1935, No. 16982. Addition to 444,522. [Class 64 (ii)] The steam heating system of the parent Specification in which a heating body 1 is connected between a steam supply chamber 5 and a condensate receiver 6 the chambers being provided with an hydraulic seal at their lower ends and with orifices at their upper ends, is modified by arranging the orifices 9, 10, in external chambers 17, 18 so that the pressure conditions in the chambers 5, 6 are uninfluenced by the condensate entering the latter. In a modification, the outlet pipe 41, Fig. 2, of the heating body communicates with a chamber 6<11>, arranged at the upper end of chamber 5, and provided with the orifices as before. The steam supply chamber 5 communicates across the condensate receiver 6<1> with the inlet of the heater. In a further modification, a separate condensate return pipe connected to chamber 6<1> is used in addition to the pipe 41.
Patent GB-1421101-A (GB)
Title: Citcuit arrangement for processing signals for the adaptive control  of machine tools
IPC: B23B25/06
Filed: 1974-04-18
Abstract: 1421101 Automatic control of vibration WERKZEUGMASCHINENKOMBINAT FRITZ HECKERT KARL MARX-STADT VEB 18 April 1974 [18 April 1973] 17008/74 Heading G3R Vibration of a machine tool is kept at a desired value by a system in which the output of a vibration sensor 1 (which may alternatively detect the resultant variations in force or torque) is filtered by a band stop filter 2 and a band pass filter 3, the band of each being that due to "self excited" vibration, i.e. resonances in the machine; thus, the frequencies which are not stopped by 2 are those produced by "external excitation", i.e. dependent on tool cutting conditions, and these are passed to a "peak value rectifier" 4 and thence to a comparator 5 where comparison with a reference value is continuously made. Any difference is applied through an inhibit gate 6 to an output 7 which adjusts feed speed, cutting depth or cutting speed. At the same time the resonant frequencies passed by 3 are passed to a second "peak value rectifier" 8 and thence to a threshold device 9 which passes the signals, if they exceed a pre-set level, to an OR gate 10 and second output 11 which adjusts, e.g. cutting depth (if not performed by 7) or the engagement width of the tool. The output at 7 is inhibited at 6 when there is an output at 11. The output at 7 is also applied to a threshold device 12 set at a lower limit of feed speed and a further threshold device 13 passes the signal from 4 if it exceeds the prescribed desired value. 12 and 13 are connected to an AND gate 14 which thus produces a signal if the "external excited" vibrations are still excessive when the feed speed is reduced to its allowable minimum, and this signal produces an adjustment via OR gate 10 and the output 11.
Patent GB-497157-A (GB)
Title: Improvements in mechanism for producing welts on straight bar knitting machines
IPC: D04B11/32
Filed: 1937-06-18
Abstract: 497,157. Knitting - machines. BERRIDGE & CO., Ltd., I. L., and COLTON, L. H. June 18, 1937, Nos. 17038 and 19576. [Class 74 (ii)] In a straight-bar machine having welting mechanism located above the frame needles for producing a turn-over welt, the thread of the first welt course is prevented, by means independent of the welt hooks, from being engaged in the beards of spaced needles with which the welt hooks co-operate. As shown in Fig. 1, thread fed to all the needles is prevented from passing into the beards of selected needles by presser elements 27 on a bar 28 operated by a cam 32 on the worm cam shaft 16, the pressers being moved towards the needles by the engagement of a member 134, with faces 35 on the arms 36. Alternatively, depending presser elements may be carried by a bar above the needles or presser elements 37, Fig. 8, may be mounted for horizontal reciprocating movement in the presser bar 26<1>. According to a further modification alternate needles are projected to a greater height than the remaining needles for actuation by the customary presser. Alternatively the thread of the first welt course may be laid on the shanks of alternate needles only by mounting the needles on two bars which are pivotally connected as shown in Fig. 11 or otherwise relatively movable to permit of one bar being moved to or left in inoperative position. The weft loops extending between alternate needles, or cast off by means of the pressers, are received by the knocking over bits 25, when the needles are lowered, and transfixed by welt hooks 12 inserted at the back of the needles. Specification 476,045 is referred to.
Patent GB-314488-A (GB)
Title: Improvements in pipe unions
IPC: F16L19/075
Filed: 1929-06-04
Abstract: 314,488. Soc. Electro-MÚcanique d' Appareillage pour l'Essence. June 28, 1928, [Convention date]. Stuffing-box joints.-The adjacent ends of two tubes are connected in a fluidtight manner by means of a union consisting of two tubular members 1, 2, Fig. 1, and a coupling nut 3, the members 1, 2, being formed internally with inclined shoulders 1', 2<1> respectively, between which and like surfaces 6, 6<1> on the ends of an inner member 4, resilient packing rings 8, 10 are positioned and compressed to grip the ends of the tubes inserted therethrough. The packing rings are formed with bevelled ends, while the distance piece 4 is provided with an internal shoulder 5 against which the ends of the tubes abut. A slightly modified union is shown in Fig. 7.
Patent GB-392752-A (GB)
Title: Improvements in and connected with the tyres of motor cars, motor cycles and other vehicles
IPC: B60C7/10
Filed: 1932-06-17
Abstract: 392,752. Wheel tyres. MILLER, A., Scrabster House, Thurso, Caithness, Scotland. June 17, 1932, No. 17128. [Class 144 (ii).] The tyre cover F is packed with tubular rubber sections A which are slightly vulcanized on the outside and reinforced at the rim-seating portion by canvas &c. strips D with feather edges. The sections are formed with interfitting concave and convex ends B, C respectively.
Patent GB-927049-A (GB)
Title: Polymer/stabiliser compositions
Inventor: SMALL PERCY ARTHUR
IPC: C08K5/00
Filed: 1960-05-16
Abstract: A polymer or copolymer of a mono-olefin and/or a diolefin, or natural rubber is stabilized with a phenolic stabilizer which is the condensation product of a phenolic compound substituted with carboxyl, amino or alcoholic hydroxy groups, and an organic compound containing at least two groups selected from hydroxyl, amino and carboxyl groups.  The condensation product preferably is of molecular weight from 500 to 5,000, and optionally contains sulphur containing groups.  The compositions may also contain calcium or zinc soaps, carbon black or organic sulphur compounds such as diesters or diamides of thiodialkanoic acids, mercaptans, sulphides, polymeric sulphides or sulphur compounds of molecular weight of at least 300. The description contains a list of compounds from which the phenolic stabilizers and the sulphur compounds of M.W. > 300, may be derived. The examples illustrate the use of phenolic stabilizers derived from (1) 3-Me-6-tBu phenol/laevulinic acid condensation product, thiodiglycol and thiodipropionic acid, (2) 3-Me-6-tBu phenol/laevulinic acid condensation product, 4-thiaoctanoic acid and tri(hydroxymethyl) propane, and (3) 3-Me-6-tBu phenol/laevulinic acid condensation product and hexamethylene glycol.  Specifications 469,548, 484,151, 768,206 and 790,373 are referred to.
Patent GB-1048261-A (GB)
Title: The manufacture of p - n junction semiconductor elements
Inventor: JACKSON THOMAS MEIRON
IPC: H01L21/00
Filed: 1963-05-01
Abstract: 1,048,261. Spark erosion. STANDARD TELEPHONES & CABLES Ltd. April 24, 1964 [May 1, 1963], No. 17172/63. Heading B3V. [Also in Division H1] PN junction semi-conductor elements are machined by a spark erosion process. The Figure shows a silicon slice 3 on a support electrode 2 in a container 4. The silicon has been treated to provide a plurality of regions of opposite conductivity in grid-like formation, each region being covered with an oxide layer. Copper electrode 4 is then placed over the lines of the grid and spark erosion takes place to remove a portion of the silicon in channels to provide scoring, so that the slice may then be broken into a plurality of PN junction elements. The erosion takes place in a dielectric liquid such as benzene or kerosene.
Patent GB-1345550-A (GB)
Title: Procision astable multivibrator
IPC: H03K3/0231
Filed: 1971-05-26
Abstract: 1345550 Astable multivibrator circuits WESTINGHOUSE ELECTRIC CORP 26 May 1971 [5 June 1970] 17173/71 Heading H3T An astable multivibrator comprises two amplifier elements 10, 12 with a common bearing impedance 14 to provide a differential amplifier, the output of which is amplified by a further pair of amplifier elements 18, 20 making a second differential amplifier with a second common biasing impedance 22, the output of the second amplifier being passed through an output stage 30 to one input of the first amplifier and to a resistor 38 to the other input, which input is connected to a reference potential by a capacitor 36. The circuit, which is shown as using transistors, oscillates at a frequency determined by resistor 38 and capacitor 36. Hysteresis necessary for oscillation is provided by resistors 42, 44, 40 which raise the potential at the gate of transistor 10 when the capacitor 36 is charging and lower it when the capacitor is discharging so providing two reference levels.
Patent GB-386546-A (GB)
Title: Improvements in sleeve valve mechanism for internal combustion engines
IPC: F01L7/04
Filed: 1932-06-17
Abstract: 386,546. Valve mechanism. PATERSON, T. W., 85, Springwood Avenue, Allerton, Liverpool. June 17, 1932, No. 17183. [Class 7 (vi).] Valves.-A rotary sleeve valve 1 is fitted above and below the sleeve ports 4 with packing-rings 10 each comprising a series of segments formed with overlapping portions 11, so that the rings expand under the action of centrifugal force, and wider packing-segments 16 are fitted between the spaced sleeve ports 4. Keys 14 on the rings ensure their rotation with the valve. The upper part of the sleeve is shrouded by a depending portion 20 of the cylinder head. Expansion of the segments 16 may be assisted by providing a number of small apertures in the valve so that the cylinder gases have access to the segments. Longitudinal adjustment of the valve is obtained by means of a ring 26 screwing into a fixed ring 27 and bearing against the lower thrust bearing 25 of the driving-gear 23, a spring ring 29 being inserted to prevent the rings 26, 27 from being thrust out. Helical oil grooves 53 extend between the packing- rings 10, 16. Regulating.-For timing adjustments, the driving pinion 32 may have serrated engagement at 40, Fig. 7, with a collar 42 fixed on the driving-shaft 35, the engagement of the serrations being maintained by screw members 43, 44. In a modification, the gear wheel 37 driven from the shaft is adjustably connected to a disc on the shaft 35 by means of a bolt inserted through one of a series of holes formed around the disc.
Patent GB-529967-A (GB)
Title: Improvements in or connected with cutter-chain machines for use in mining coal and other minerals
IPC: E21C25/50
Filed: 1939-06-14
Abstract: 529,967. Mining machines; conveyers. MAVOR & COULSON, Ltd., and SPROUL, J. C. June 14,1939. No. 17361. [Class 68 (i)] [Also in Group XXX] A cutter-chain machine for mining coal and other minerals is provided with means for removing cuttings comprising a shaft on which are mounted a plurality of vanes or blades movable relative to the shaft so as to be capable of assuming two opposite obliquities, equivalent to two helices of opposite hand, whereby, when the cutter chain is moved to cut on the opposite side of the machine and the motor is reversed the conveyer may be adjusted to move the cuttings in the same direction as before. The blades 4 are carried by a shaft 3 within a housing 2, a carrier C connecting the device to the machine A and enclosing transmission gearing for driving the shaft 3 from the machine. Each blade is pivotally mounted by a pin passing through the shaft and is held by a collar 7, a cut-away part 9 and stop 10 limiting the pivotal movement; if the rotation of the shaft 3 is reversed, the thrust of the cuttings on the blades reverses the latter. Alternatively, the blades may be manually adjusted, and to different degrees of obliquity, by a common operating member passing through the shaft 3. Specification 512,442 is referred to. The Provisional Specification also states that the conveyer housing may decrease in diameter from front to rear, the front diameter being approximately equal to the height of the machine, the conveyer shaft may be connected by bevel gearing to a shaft parallel thereto and driven through a dog clutch and bevel gearing from the crown wheel driving the cutter chain, a rotatable ring may be provided at the rear of the conveyer for adjusting the blades, and means may be provided for " feathering the blades to compensate for inclination of the conveyer shaft.