baber/WOPTO huggingface dataset:
Patent GB-491199-A (GB)
Title: An improved manufacture of cellulose compound compositions
IPC: C08L1/10
Filed: 1938-02-11
Abstract: Cellulose compositions comprise a cellulose ether or organic ester, and not more than 50 per cent, usually 0,1-20 per cent, of a substantially saturated linear aliphatic iso-olefine polymer having a molecular weight above 800, usually 40,000-200,000. Polymers of diolefins and isodiolefins and their hydrogenated products are specifically excluded.  Polymers specified are polyisobutylene and polyisopentene.  Cellulose compounds specified are the acetate, nitrate, oleate, stearate, naphthenate, acetobutyrate, propionate, and laurate, and benzyl and ethyl cellulose.  The cellulose compound and the polymer may be dissolved in a mutual solvent such as carbon tetrachloride, tetrachlorethane, trichlorethylene, dichlorethylene, fluorbenzene, or ethyl fluoride, and the solution may be spun or used for example in the production of films, lacquers, moulded articles, or laminated glass, or for waterproofing textiles, cellulose foil, &c.  Materials, e.g. dyes, pigments, rubber, resins, plasticizers, waxes, metal soaps, anti-oxidants, &c. may also be incorporated.  The polymer may be treated with sulphur chloride alone or in the presence of the cellulose compound.
Patent GB-562825-A (GB)
Title: Crankshafts for fluid-pressure engines
IPC: F16C3/08
Filed: 1943-03-18
Abstract: 562,825. Crankshafts. SINGER MOTORS, Ltd., and SHORTER, L. J. March 18, 1943, No. 4388. Drawings to Specification. [Class 80 (ii)] [Also in Group XXII] A crankshaft, for a fluid-pressure engine, is cast, integrally with the engine flywheel, of a. ferrous alloy.
Patent GB-880712-A (GB)
Title: Improvements in the control of electrically operated machines particularly washing machines
IPC: D06F34/34
Filed: 1958-02-11
Abstract: 880,712. Washing-machines. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 11, 1958 [Feb. 22, 1957], No. 4448/58. Drawings to Specification. Class 138 (2). An electrically operated washing machine has a control box connectable by a plug-and-socket connector to the machine, and also control elements within the machine, the arrangement being such that when the box is connected, control of the machine is transferred from said control elements to said control box. The control box may be removably mounted on the machine casing. The machine may operate automatically when the box is connected and semi-automatically when controlled by the elements.
Patent GB-1191437-A (GB)
Title: Improvements in or relating to the Manufacture of Short Lengths of Dough of Butterfly Shape.
IPC: A21C11/00
Filed: 1969-01-28
Abstract: 1,191,437. Cutting dough shapes. BARILLA G. & R. F. LLI S.p.A. 28 Jan., 1969 [20 Feb., 1968], No. 4645/69. Heading B5A. Short lengths of dough of butterfly shape are made by extruding a strip 6 of shaped crosssection, cutting the strip to form a serrated leading edge 6a, pinching together the longitudinal edges of the strip upstream of the edge 6a to form a pleated neck region 6b and cutting the strip upstream of the neck region to form a serrated edge 6c. The extruder preferably comprises a multi-orifice die, each orifice being W-shaped with rounded edges. The extruded strips pass individually through openings 20, 23 in the cutting device which comprises a fixed top plate 19 with openings 20 and corrugations 21 on its bottom face and a movable bottom plate 22 with openings 23 and corrugations 24 on its top face mating with those on the top plate. The top plate 19 is bolted to a fixed carrier plate 15 and the bottom plate 22 is fixed by large headed bolts 26 engaging grooves 27 which permit sliding movement provided by cam driven pin 29 engaging in slot 28. The pinching device comprises two rocking levers 36 mounted on pivot 37 beneath the movable plate. Jaws 41 are attached to one end of levers 36 and cam rollers 40 to the other and the levers are biased apart by springs 38. A cam 34 is slidably mounted on the carrier plate 15 and is attached to pin 29 and engages the cam rollers 40. In operation, the cutter and pinching device is rigidly mounted on a circular table beneath the fixed extruder. A rotatable annular ring on the table carries cam members which engage pin 33a of cam 34 and reciprocate it from left to right (as shown in Fig. 5) as the annular ring rotates. The cam 34 is moved to the far left, allowing jaws 31 to open and moving the bottom plate 22 so that the openings 20, 23 are not lined up and the dough is severed with a corrugated edge. As the cam moves to the right, the openings 20, 23 become aligned, the dough passes through and by the action of cam 34 on cam rollers 40, the jaws 41 close and pinch the dough at a distance above the cut which can be varied. Further movement of the cam to the right, opens jaws 41 and moves the openings 20, 23 out of alignment so that the butterfly shaped dough pieces are severed from the extrudate. A second set of dough pieces are formed as the cam 34 moves back to the left.
Patent GB-213888-A (GB)
IPC: B25D17/08
Filed: 1924-02-23
Abstract: 213,888. Chicago Pneumatic Tool Co., (Assignees of Penberthy, E.). April 5, 1923. [Convention date]. Sockets. - A holder for attaching a drill or other tool to a spindle carries a retaining member B the ends of which project through holes in the holder into a hole in the tool shank. To release the tool the member B is moved into the position shown in dotted lines, whereby the ends 12 move apart by the action of inclines 17, the ends 12 acting as pivots.
Patent GB-549488-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1941-04-08
Abstract: 549,488. Automatic exchange metering systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., TAYLOR, R., and BAKER, G. T. April 8, 1941, No. 4663. [Class 40 (iv)] In a satellite system, metering charges for calls originated at a satellite such as A and going to exchanges outside the central area through an outgoing selector OGS are assessed at the main exchange M, apparatus thereat controlling the repeated operation of the meter over the conversational circuit when the called subscriber replies. The signals consist of trains of impulses at characteristic low rates and are shaped by filter circuits so that they have no audible components. In the arrangement described, rates of one and two impulses per second are employed, one rate causing one operation of the meter in addition to its normal operation by the reply signal and the other rate causing two such operations. A signal comprising both rates in turn causes three additional operations. The signal responding apparatus is of the kind described in Specification 518,877. Non-linear resistance material may be shunted across the input coils of the responding apparatus to prevent false operation. Circuit arrangements. As shown, a first' digit 8, signifying that the,call is to go outside the central area, causes a route discriminating equipment RDE to be associated with the outgoing junction set OJS and the outgoing selector OGS at the main exchange and this, in addition to controlling the extension of the call with the aid of an impulse regenerator of the kind described in Specification 458,095, [Group XL], operates one or both of two relays MMA, MMB, Fig. 4. When the called party replies, the supervisory relay DM reverses the current in the junction 10, 11 to the satellite to operate the meter once in the usual way and causes the operation of relays DA, DB in succession from S and Z pulse wires. During the first half of the Z pulse, impulses at a rate of one per second are generated at contacts PA and during the second half impulses at the rate of two per second are generated at PB and. either or both sets are sent over the junction according to the condition of relays MMA, MMB. Condensers QA, QB and inductance L remove all audible components. In response to these signals, the tuned responding- devices RA, RB are operated. If only RA is operated, MA, SA pull up, the meter is operated and MA is then released. If RB is operated, MB pulls up, operates (or re-operates) MA, which co-operates with SA as before to operate the meter, and energizes SB which locks. SA therefore falls on the relapse of MA and a further impulse is given during the release time of MB. The currents are arranged at both ends to prevent incorrect metering as a result of switch-hook manipulation by the calling party. The receiving circuit may include a thermionic valve which operates in response to each signal impulse to give operating pulses of constant value to the' responding devices. Specification 549,510 also is referred to.
Patent GB-249092-A (GB)
Title: Improvements in electric switches
IPC: H01H5/18
Filed: 1926-02-19
Abstract: 249,092. Favarger et Cie Soc. Anon. March 12, 1925, [Convention date]. Oscillating machines.-An electromagnet 1, in series with a switch 4 and supplied by a battery 3, alternately attracts and releases its armature 5 against the action of a spring 7. The oscillation of the armature is communicated by a pawl to a ratchet wheel 9 acting on the driving spring of a clock. As shown, the magnet is deenergized and the armature 5 is rising; thus a spring 10 carried thereby will lift off from a pin 13 carried by a pivoted pawl 14. The spring contact 4 by pressing on another pin 16 on the pawl 14 will tend to turn it anticlockwise, but is prevented by reason of a detent 19 until a rod 11 carried bv the armature 5 lifts the detent and allows the pawl to assume the position shown in dotted lines. Whereupon the switch closes quickly and the magnet 1 is energized to pull the armature 5 downwards. During this downward movement, the spring 10 re-engages the pin 13, but the pawl 14 is prevented from turning clockwise by a detent 20 until this detent is depressed by a rod 12 carried by the armature 5. Thereupon the switch opens quickly and the cycle of operations is repeated. The oscillation of the member 5 may be produced by any means, for example the alternate thermal expansion and contraction of a metallic body.
Patent GB-1463214-A (GB)
Title: Retaining arrangements for rubber liners
IPC: B29C51/00
Filed: 1975-02-05
Abstract: 1463214 Shoots TRELLEBORGS GUMMIFABRIKS AB 5 Feb 1975 [11 Feb 1974] 4916/75 Heading B8S [Also in Division B2] A lining-and-fastener arrangement, particularly for a mill or shoot having a surface to be protected against wear, comprises an elastomeric layer and a fastener 16 screwed into the layer from the side facing the surface to be protected against wear. The fastener comprises a screw bolt or pin with a tubular externallythreaded self-tapping shank portion 24, 26, 32 screwed into the elastomeric layer and an abutment surface limiting the depth to which the fastener can penetrate. When screwed in, the elastomer extends at least partially into the tubular shank. The abutment comprises a flange which is formed as a tool grip portion 40. The solid part of the shank is threaded 20 to permit fastening with a nut 22. The self-tapping threads on the hollow shank have a trapeziform profile and the end of the tube is knife-edged, 36. In a second embodiment, the bolt head 62 serves as the abutment, Fig. 3. The liner may include lining and wear bar components. The lining segments 82, Fig. 4, are clamped by a wear bar 84 which engages steel plates 86 vulcanized to the respective lining segments.
Patent GB-599370-A (GB)
Title: Improvements in multiple electrical recording systems
IPC: G01R17/04
Filed: 1944-03-16
Abstract: 599,370. Electric measuring systems. KEINATH, G. March 16, 1944, No. 4945. Convention date, Dec. 24, 1942. Addition to 581,977. [Class 40 (i)] In a system for recording a number of measurements, the variable elements to be measured are connected sequentially by a contact device to a ,variable circuit member, such as a potentiometer, the adjusting member of which is driven round continuously and operates a relay when it reaches a point on the variable member indicative of the magnitude to be measured and so causes a mark to be made on the recording sheet. In the Figure shown, the voltage from a pick-up coil 111 is applied across the potentiometer 120, a point being reached in the rotation of the contact arm 125 when the voltage applied to relay 167 is large enough to cause it to operate and close contact 170. The condenser 171 then discharges and makes a mark on the recording drum 151, which is driven at the same speed as the contact device 140. The potentiometer contact 125 is driven through gearing 130 so that it completes one revolution while the contact 145 of the contact device 140 passes over one segment, zero lines are marked on the recording sheet by arranging that every time contact 125 passes over contact 0 the relay is energized from battery 186. In a modification, Fig. 2 (not shown), the pick-up coils are connected as one arm of a Wheatstone bridge, a point of balance being obtained in the rotation of the potentiometer contact, when the relay closes the switch contacts. In another arrangement, Fig. 4 (not shown), a variable condenser is used instead of the potentiometer. The system is applicable to testing aircraft, the impulses produced by the discharge of the condenser being transmitted to a distant recording mechanism and the recorder drum being driven in synchronism with the potentiometer contact or other adjustable element. Specification 556,134 is referred to.
Patent GB-1494519-A (GB)
Title: Preparation of radiograms
IPC: G03G15/054
Filed: 1975-02-05
Abstract: 1494519 Electroradiography SIEMENS AG 5 Feb 1975 [28 Feb 1974] 4958/75 Heading G2H In a radiographic apparatus of the type in which a sensitive material, such as a sheet of dielectric on which a charge image is obtained for xerographic reproduction, is exposed between two conductive layers between which there is an electric field, the change in electrical condition, e.g. the integrated value of ionization of a gas over the image area, is sensed and used to control the exposure given to the sensitive material. In Fig. 1 the device is in the form of a cassette accommodating a recording material consisting of a conductive base 6 and a dielectric layer 7. The cassette includes conductive layers 4 and 5, the latter being divided to permit measurements over two areas, the layers being used as above.
Patent GB-624673-A (GB)
Title: Battery terminal connector
IPC: H01R11/28
Filed: 1947-02-20
Abstract: 624,673. Cable terminals. THOMAS, O. H. Feb. 20, 1947, No. 4973. [Class 38 (i)] In a battery connector comprising a split socket, the clamping pressure is supplied by co-operating cam surfaces. Fig. 1 shows one embodiment wherein the jaws 38, 39 of the socket are secured together at one end by a stud 41 having left- and right-hand threads at its ends on which are threaded latches 46, 47. The outer faces of the jaws adjacent the outer ends thereof and adjacent the ends of the stud have cam surfaces 44, 45 and 42, 43, respec. tively, with which co-operate cam surfaces 52, 53 and 50, 51 on the latches. The jaw 38 carries a cable socket 40. In a modification (Fig. 2, not shown), the latches are connected by a yoke so that they can be turned together. In a further modification (Fig. 5, not shown), cam surfaces are provided only on the outer faces of the jaws adjacent the ends of the stud and on the co-operating faces of the latches. For use with battery lugs of a standard size, the stud may be plain (Fig. 6, not shown), the latches being freely rotatable thereon. Also in this modification the stud passes through the outer ends of the jaws, the inner ends being solid and carrying a cable socket. In Fig. 9, the hubs of the latches 69, 72 have journals 67, 70, respectively, the latter one being tapped to receive a screwed stud 65 passing through the journals to hold the latches and clamping jaws 61, 62 together. Co-operating cam surfaces 63, 64 and 74, 75 are provided only on the outer ends of the jaws and latches respectively. In order to prevent corrosion, bushings 73, Fig. 9, of phenolite or other non-corrosive alloy, may be provided, and the studs and latches may be formed of stainless steel or the like.
Patent GB-366296-A (GB)
Title: Improvements in and relating to dewatering towers
IPC: F26B25/00
Filed: 1931-02-17
Abstract: 366,296. Drying coal &c. GES. FUR FORDERANLAGEN E. HECKEL, 27, Graf- Johann Strasse, Saarbr³cken, Germany. Feb. 17, 1931, No. 5070. Convention date, Feb. 17, 1930. [Class 34 (ii).] A tower a for draining moist fine coal &c. is provided with a fixed tube c within which slides a tube d, so that the upper (drier) layer x may first be removed by opening the shutter b, the lower (moister) layer y being subsequently removed by drawing up the tubed. The tube c may be funnel shaped, and the tube d may be in a number of telescopio sections to control different layers.
Patent GB-1055057-A (GB)
Title: Benzo-cyclohepta-thiophene derivative and method of producing it
Inventor: JUCKER ERNST
IPC: C07F9/6553
Filed: 1963-08-16
Abstract: 1,055,057. Benzo-eyelohepiaihiophen-4-one and thiophene intermediates. SANDOZ PATENTS Ltd. Aug. 16, 1963 [Aug. 31, 1962; July 8, 1963]. No. 5178/65. Divided out of 1,055,055. Heading C2C. The invention comprises 9,10-dihydro-4H- benzo[4,5]cyclohepta [1,2-b]thiophen - (4) - one and the preparation thereof by the cyclization of o-[2-thienyl-(2<SP>1</SP>)-ethyl]-benzoic acid with polyphosphoric acid. o - [2 - Thienyl (21) - ethyl] - benzoic acid is prepared by the reduction of thenylidene-(2)- phthalide with red phosphorus and hydroiodic acid or by reduction of o-[2-thienyl-(21) -ethenyl]- benzoic acid. The thenylidene.(2)-phthalide itself may be obtained by reaction of thienyl-(2)-acetic acid with phthalic acid anhydride, while the o-[2- thienyl - (2<SP>1</SP>) - ethenyl] benzoic acid may be obtained by reaction of thenyl-diethyl-phosphonate with o-phthalaldehydic acid. Thienyl-diethyl-phosphonate is prepared by the reaction of triethyl phosphite and 2-thienyl chloride.
Patent GB-1428605-A (GB)
Title: Voltage-regulators for three-phase generators
IPC: H02J7/24
Filed: 1974-02-05
Abstract: 1428605 Semi-conductor voltage regulator construction SIEMENS AG 5 Feb 1974 [5 Feb 1973] 05206/74 Heading G3R A semi-conductor voltage regulator for a threephase generator includes components for controlling the generator excitation current and a Zener diode for excess voltage protection. The Zener diode is mounted on a metallic substrate, and the other components form a thick film hybrid circuit on an insulating substrate. The substrates are fixed inside a housing by a heat-conducting adhesive. As shown, a regulator for a vehicle alternator includes a heat conducting housing 1 containing a hybrid circuit 6-9 on a substrate 3 and a Zener diode 5 on a substrate 4. Connections are made through an insulating sheet 16 held by projections 20 on the housing and on a cover which fits into a channel 15 on the housing. A hardenable synthetic resin is poured into the housing through the wall 13 to fill the space between that wall and the sheet 16. The regulator circuit may include a Darlington transistor pair and a Zener diode comparator in chip form.
Patent GB-1242320-A (GB)
Title: Process for the dehydration of maleic acid
Inventor: WEYENS ERNEST
IPC: C07D307/60
Filed: 1968-01-30
Abstract: 1,242,320. Maleic anhydride. UCB (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) S.A. 28 Jan., 1970 [30 Jan., 1969], No. 5221/69. Heading C2C. Maleic anhydride of at least 99% by weight purity and containing 0-0À1% by weight of fumaric acid is prepared in a continuous process from an aqueous solution of maleic acid by: (a) Heating the maleic acid solution in a concentration zone at a temperature of between 100 and 150 C. and at a pressure of between 400 and 760 mm. Hg until the water content of the maleic acid is reduced to 0-10% by weight; (b) Treating the maleic acid obtained in stage (a) in a conversion zone at a temperature of between 150 and 200 C. and at a pressure of between 40 and 300 mm. Hg until from 10 to 97% by weight of the maleic acid is converted into maleic anhydride, to give a liquid phase of impure maleic acid and a purified gaseous phase containing maleic anhydride and water vapour; (c) Treating the impure liquid phase produced in stage (b) with an aqueous solution of maleic acid in a dissolution and filtration zone to provide a solid residue containing the impurities and any fumaric acid which may have been formed, which is removed from the system, and a filtrate consisting of an aqueous solution of purified maleic acid, which is either recycled partly to stage (a) and partly to the impure liquid phase produced in stage (b) or is removed from the system; (d) Condensing in a condensation zone the gaseous phase consisting of maleic anhydride and water vapour produced in stage (b) at a temperature higher than the dewpoint of the water vapour present in the gaseous phase, thus obtaining maleic anhydride of the desired purity; washing the residual vapour with water and returning, if desired, to stage (a) the solution thus obtained containing maleic acid. The temperature employed in step (a) is preferably 135 C. and pressure 500 mm. Hg. The maleic acid solution used as starting material may be obtained by washing the effluent of a catalytic oxidation reactor for hydrocarbons, such as benzene, with or without the previous condensation of part of the maleic anhydride.
Patent GB-681882-A (GB)
Title: Electronic apparatus responsive to electrical impulses
IPC: G06F7/498
Filed: 1951-03-05
Abstract: 681,882. Digital electric calculating-apparatus. NATIONAL CASH REGISTER CO. March 5, 1951 [May 25, 1950 ; May 25, 1950], No. 5227/51. Class 106 (i). [Also in Group XL (c)] Apparatus for counting electrical impulses comprises electron tubes which are rendered conducting seriatim in response to impulses, in which corresponding electrodes of the tubes are interconnected so that the impulses are applied in common to these electrodes in order that, when a tube is initially rendered conducting, the variation of potential at its said electrode is transmitted to the interconnected electrodes of the other tubes to cause any conducting tubes to be rendered non-conducting, and so that the potential at said electrode, on stabilization of the circuit after the impulse, is applied to the tube next in sequence to prime that tube so that it will be rendered conducting in response to the next impulse. Each order of an accumulator comprises ten digit-representing tubes, an entry tube E and a transfer tube T, all of which are gas-filled tetrodes. The control electrode of each digit-representing tube is negatively biased but also connected to the cathode of the preceding tube so that when one tube is conducting, the next is primed. Positive input pulses on a lead 59, applied to the control electrode of the tube E, which is self-extinguishing, produce negative pulses at the anode, which is connected to a common lead 47, resistance-capacity coupled to the cathodes of all the digit-representing tubes. Each such pulse, by lowering the cathode potentials, fires the primed tube. The consequent rise in the cathode potential of the fired tube produces a positive pulse at each of the other cathodes which is sufficient to extinguish the previously conducting tube. When the " 9 " tube is conducting, both the " 0 " tube and the transfer tube T are primed. The next positive pulse fires the " 0 " tube as previously described, and is directly applied to the control electrode of the tube T so as to fire this tube, which is self-extinguishing, and to produce a positive pulse at its cathode which is connected by a lead 78 to the tens input lead 65. The closing of a switch 60 in each order removes the negative bias on the control electrode of the " 0 " tube to render it conducting.