baber/WOPTO huggingface dataset:
Patent GB-1409566-A (GB)
Title: Pneumatic classifier for threshing machine
IPC: A01F12/44
Filed: 1972-11-17
Abstract: 1409566 Combine harvester WESTERN ROTO THRESH Ltd 17 Nov 1972 [22 Nov 1971 2 March 1972] 53103/72 Heading A1F [Also in Division B2] A combine harvester has a header 12, a threshing drum 28, a concave 30, a rotary straw separator 15, cleaning means 18, a conveyor 70 for the clean grain, or recycling conveyor 68 for unclean grain and is characterised by pneumatic means 16 for separating chaff from the grain. The crop is fed to the threshing drum 28 by chain conveyors 23 and 24 and then into the rotary straw separator 15 where centrifugal force drives the grain and chaff through openings in the surface into area 32 and from thereby gravity onto conveyor 42 which carries it back to the vertical passage 38 to add to the grain passing through the concave 30. The straw continues along the rotary separator, assisted by the auger 48 in removing material adhering to the inner surface, until it is ejected at the rear. The grain and chaff fall under gravity down the passage 38 where an air draught from a fan 50 rotating in direction B causes the lighter particles of chaff to be carried along a duct 7 to an outlet 51 Fig. 2. The grain and other materials fall firstly onto rotary screens 52, 54 and then onto a reciprocating sieve 56, the effect being to direct the clean grain into the trough containing an auger 58 and the uncleaned grain into a trough 64, the main fan 60 and an auxiliary fan 62 assisting the separation. The auger 58, followed by the conveyor 70 transfer the clean grain into the grain tank 72 while the unclean grain is recycled back to the threshing cylinder 28 by the auger 66 and the conveyor 68.  In a second embodiment Fig. 5 (not shown) there are no rotary screens adjacent to the reciprocating screen, the pre-separation being carried out pneumatically by a suction fan 152 with a divided input which causes separate draughts at two different levels in the vertical passage and exhausts the air and chaff mixture to the atmosphere. Balance between the air flows in the two channels 160, 162 and also with the fan associated with the reciprocating screen 164 is controlled by two hinged baffle plates, 154, 158.
Patent GB-1179345-A (GB)
Title: Continuous Particle Electrophoresis Cell
IPC: G01N27/447
Filed: 1967-11-22
Abstract: 1,179,345. Electro-phoresis cell. BECKMAN INSTRUMENTS Inc. Nov. 22, 1967 [April 14, 1967], No.53149/67. Heading C7B. In a cell for continuous separation of particles by electro-phoresis, the electro-phoresis space is defined by front and back plates 12 and 14, preferably transparent, maintained in parallel, spaced relationship by non deformable spaces. Inlet 24 and outlet 26 are provided for electrolyte flow to maintain a curtain of electrolyte in the space. Inlet 42 and outlet 42 are provided for introducing the sample and for removing a selected portion thereof, and a gas outlet 27 for removing air bubbles. A rigid backing plate 32 is attached by screws 34 to the rear plate 14, and has flange 36 for mounting the apparatus in a vertical position. The electrode assembly is attached to the rear plate 14 and communicates with the electrophoresis space through slots 50. Wire electrodes 66 are supported in fittings 68 in housing element 60 and between the electrodes and the electrophoresis space are a perforated partition 62, bridging channel 56 and an ion-permeable membrane 64. Electrode channels 54 and channel 56 are provided with buffer solution circulating from inlet 74, outlet 76, inlet 70 and outlet 72. Some cross flow occurs through the perforated partition. The electrode assembly is clamped to plate 14 with interposed sealing ring 80. Specification 1,179,344 is referred to.
Patent GB-1200306-A (GB)
Title: Frames
Inventor: HUGHES GRAEME
IPC: E06B1/28
Filed: 1966-11-28
Abstract: 1,200,306. Plastic hollow frames. IMPECHEMICAL INDUSTRIES Ltd 6 Nov., 1967 [28 Nov., 1966; 9 Feb., 1967], Nos. 53153/66 and 6173/67. Heading E1J. A frame member for forming frames of plastics materials e.g. synthetic polymeric material, fibre reinforced polyester resin, moulded from partially cured mat thereof for doors and windows and having a main hollow rectangular or other cross section, is formed from two components A, B Fig. 2 and has a hollow ridge extending longitudinally therealong produced upon assembly of the two components my uniting a flange 11 a (or 11b of the component A (or B) extending from the side 10a (or 10b which forms one side of the main hollow section, with a flange 12b (or 12a) of the component B of an extension 9" (or 9') of the side 9b (or 9a) which forms a side adjacent the side 10a (or 10b) of the hollow section so that the end of the flange 11 a (or 11b abuts against the flange 12b (or 12a), and a projection 13b (or 13a) on the component A (or B) engages the other component B (or A) to locate the abutment of the flanges 16a, 12b (or 16b, 12a). The projection 13a (or 13b) may have an inclined surface as shown to engage the corner 15a to guide the flange 11a on assembly. The components A, B may be of L- shape as shown or with two ridges at one end of the hollow section, e.g. mirror images of one half of Fig. 2, (as shown in Fig. 3). The inclined surface 14a, 14b may terminate in a horizontal ledge to receive the corner 15a, 15b and the end of the flange 12a or 12b may be provided with a rebate or recess to receive the end 16a, or 16b of the flange 11 a or 11b and the joints may be secured by adhesive. Various shaped joints are illustrated (Figs. 7-13) including interfitting castellated members (Fig. 13).
Patent GB-1426890-A (GB)
Title: Positive or negative developable photosensitive composition
IPC: G03C1/675
Filed: 1973-11-19
Abstract: 1426890 Photopolymerizable materials MINNESOTA MINING & MFG CO 19 Nov 1973 [20 Nov 1972] 53665/73 Heading G2C [Also in Division C3] Positive or negative working photopolymerizable elements comprise a substrate bearing a light-sensitive layer of a composition comprising (1) at least one free radical polymerizable monomer having at least one ethylenically unsaturated terminal group and a boiling point above 100C (2) at least one photoinitiator in an amount sufficient to polymerize the monomer(s) upon exposure to actinic radiation, and (3) a blend comprising (a) at least one acid-soluble amino-containing polymer and (b) at least one compatible, acidinsoluble, film-forming polymer. The compositions may additionally include such additives as pigments and sensitizers. After exposure, positive development can be achieved with dilute acid, e.g. 2-5% aqueous acetic acid; alternatively negative development is effected by treating with a dilute base, e.g. 0.1% ammonia solution. In Examples the amino polymer is selected from poly(2- dimethylaminoethyl methacrylate), poly(2- diethylaminoethyl methacrylate), poly(3-dimethylaminopropyl methacrylate), poly(11-dimethylaminoundecyl methacrylate), and copolymers of 2-dimethylaminoethyl methacrylate with isoarryl acrylate, lauryl methacrylate or tetrahydrofurfuryl methacrylate; and the acid-insoluble polymer is selected from polyvinyl acetate having pendant carboxyl groups, polyvinyl formal, hydroxypropylcellulose, diacetone acrylamide/formaldehyde condensation product and vinylpyrrolidone/methyl methacrylate copolymer. Applications include silk screen printing of Fig. 3 (not shown) printed cir cuits and lithographic plates. The p/p composition may be coated on a polyester support subbed with a polyvinyl alcohol or any watersoluble polymer and be covered with a film (e.g. polyethylene) which can be removed so that the p/p layer can be applied to a silk screen and the support peeled off so it can be used in silk screen printing.
Patent GB-1524569-A (GB)
Title: Scouring desizing and bleaching of cotton greige goods
IPC: D06L3/02
Filed: 1975-10-03
Abstract: 1524569 Scouring, desizing and bleaching J KATZ 3 Oct 1975 53835/77 Divided out of 1524568 Heading DIP A process for scouring, desizing and bleaching cotton greige goods comprises the steps of: (a) immersing said goods for a time not more than 30 minutes to achieve commercially acceptable whiteness in an aqueous solution having a temperature in the range from 100 to 212 degrees F and consisting of from 0.3 to 70% by volume hydrogen peroxide, water and sufficient hydroxide to adjust said solution to a pH in the range from 10-14, said solution being substantially free of heavy metal ions and maintained out of contact with all metals while said goods are immersed therein; (b) cycling at least a portion of said solution through a filtration means to remove solid impurities therefrom or through purification means to remove contaminants therefrom while maintaining the volume, composition and pH of said solution in contact with said goods substantially the same; (c) rinsing said goods with water to wash said aqueous solution therefrom; and (d) drying said goods. The recycling may be effected continuously or intermittently through a mechanical filter such as a fibre e.g. plastic screen or a microporous membrane. Chemical purification may also be used. Scouring, desizing and bleaching may be simultaneous and carried out in one or a plurality of glass-lined or hard polypropylene tanks through which the goods may be advanced e.g. as a web. The hydrogen peroxide solution may contain additives such as fluorescent brighteners and bluing agents or these may be contained in a separate tank. Each bath may be preceded by a water-dip at elevated temperature. The temperature of the various baths may be maintained by steam heat exchangers. Optionally steamheated squeeze-rolls may be provided to prevent solution carry over between baths. Temperature, pH and concentration parameters are optimised for the many treatments disclosed.
Patent GB-1282630-A (GB)
Title: Single lever control for coordinating multiple motion transmitting devices
Inventor: HOUK RICHARD DAVID
IPC: E02F9/20
Filed: 1969-11-05
Abstract: 1282630 Hydrostatic transmission control; linkwork NORTH AMERICAN ROCKWELL CORP 5 Nov 1969 [23 Jan 1969] 54322/69 Heading F2D A single lever control for two hydrostatic transmissions driving tracks on opposite sides of a vehicle and each having a variable displacement swash plate pump supplying pressure liquid to a fixed displacement motor comprises a control lever 76 fast with a yoke 29 having arms 34, 35 connected by Bowden cables 15, 16 to the swash plate adjusting mechanisms and the yoke 29 pivots about an axis 33 relative to a block 20 and pivots with the block 20 about a transverse axis 28 of a shaft 18. Movement of the lever 76 about the axis 28 causes identical displacement changes in both pumps and movement about the axis 33 produces equal and opposite displacement changes in the pumps for steering. The lever 76 passes through a gate 81 having forward and reverse apertures 82, 83 and a spin turn slot 84. The apertures 82, 83 are shaped to prevent reverse rotation of one track whilst the vehicle is moving forwardly and vice versa and also limit the differential speed between the tracks. The spin turn slot 84 permits the tracks to rotate at equal speeds in opposite directions.
Patent GB-1278550-A (GB)
Title: Conditioning apparatus for yarn or thread
IPC: B65H71/00
Filed: 1970-11-16
Abstract: 1278550 Coating apparatus SCHWEITER ENG WORKS Ltd 16 Nov 1970 [18 Nov 1969] 54509/70 Heading D1L Apparatus for conditioning a yarn or thread comprises a conditioning device 6 which includes a drive shaft 13, a trough 8 for storing the conditioning agent, a finishing roll 9 removably and magnetically coupled to the drive shaft 13 in order that the finishing roll 9 during rotation passes through the trough 8, the finishing roll 9 and the drive shaft 13 being maintained in a mutual co-axial relationship by centreing means. The finishing roll 9 includes a front flange 10 of magnetic material which is magnetically coupled to a holding disc 11 via a ring-shaped magnetic disc 15 which is secured in a recess of the disc 11, the latter of which is connected to one end of a shaft 13. To ensure coaxial alignment of the finishing roll 9 to the drive shaft 13 a centreing shoulder 16 which widens conically outward is provided on front flange 10 and the holding disc 11 engages flange 10 of the centreing shoulder 16 to provide alignment. Alternatively the magnet 15 may be located in the flange 10, or in both the flange 10 and the disc 11 with proper pole orientation. In another embodiment, to ensure coaxial alignment of the roll 9 with the shaft 10 the shaft 13 is extended in the form of a point which then engages a corresponding conical depression in the centre of the front flange 10 of the finishing roll 9. The finishing roll 9 can be easily separated from the driving shaft 13.
Patent GB-1434061-A (GB)
Title: Process for purification
IPC: C07C59/265
Filed: 1973-11-23
Abstract: 1434061 Gas purification liquors O ERGA 23 Nov 1973 [24 Nov 1972] 54532/73 Heading C1A [Also in Division C2] Sodium citrate and sodium sulphate impurity are separately crystallized from aqueous sodium citrate solutions which have been used to remove sulphur dioxide from gases and subsequently stripped of their sulphur dioxide content, said sodium sulphate being formed by absorption of minor proportions of sulphur trioxide and sulphuric acid in said gases, by evaporating the solution, adding a sodium citrate seed thereto, and allowing it to stand at an elevated temperature to precipitate sodium citrate, and then cooling the resulting solution to less than 15 C. to precipitate sodium sulphate. The resulting solution may be subjected to a further evaporation to precipitate more sodium citrate. The evaporation is preferably carried out at 80- 105 C., at approximately atmospheric pressure, until at least 80% of the water present has evaporated (or at least 30% of the weight of the solution has evaporated), whereafter the solution is allowed to stand at 25-35 C. (most preferably 28-32 C.).
Patent GB-1487840-A (GB)
Title: Machine for knotting threads with the so-called weaver's knot
IPC: B65H69/04
Filed: 1974-12-19
Abstract: 1487840 Knotting machine P MESSA [trading as MESDAN DI MESSA PIETRO] 19 Dec 1974 [4 Jan 1974] 54974/74 Heading D1C In a weavers knot making machine of the rotary bill type the thread crossing device comprises a single member 41 pivoted to the associated sidewall 1 and formed with spaced throats 35, 37 for the respective threads Y, X, two spring members 102, 103 also being mounted on the sidewalls with spacing therefrom and being each formed with a throat 106, 107 so that when the crossing device is pivoted from the rest position of Fig. 1 to the crossed-over position of Fig. 3 the device bears frictionally on the spring members with the threads resiliently gripped therebetween, thereby braking the threads during the knot making process. The members 102, 103 are formed as prongs of a single spring 101, each prong being slightly bent along a line 104, 105 and having a pin 108, 109 which limits deformation of the prong.
Patent GB-1409097-A (GB)
Title: Method of assembling extensible elements on web portions in a continuous process of garment manufacture
IPC: A41F9/02
Filed: 1972-11-29
Abstract: 1409097 Making garments with extensible elements C R PIERRON 29 Nov 1972 [3 Dec 1971] 55161/72 Heading A3V Garments or garment parts e.g. sleeves 17a are formed continuously by separating portions from a web, each web portion being fashioned by the provision of an opening, fold or gore to allow extension thereof without stretching the web material and an extensible, preferably resilient, element 10a is attached to the web portion while in unstretched condition so as to oppose said extension thereof. As shown the element 10a provides a resilient cuff on a sleeve formed by glueing and cutting along a line 11a. Instead of the opening shown one or more slits may be formed and the opening or slit may be provided on its side remote from the resilient element with a flat tubular patch. Fig 11 shows a gore 36 formed horizontally on a garment back and bridged by a plurality of extensible strips. Alternatively the gore may be replaced by a fold. The resilient element(s) may be attached by sewing, welding or adhesive. The invention is applicable to making jackets, coats, blouses, trousers, overalls, dresses, skirts, headgear and footwear.
Patent GB-1193548-A (GB)
Title: Integrated Circuit Carrier.
IPC: H01L21/673
Filed: 1968-11-21
Abstract: 1,193,548. Integrated circuit carriers. BARNES CORP. 21 Nov., 1968 [1 May, 1968], No. 55250/68. Heading H1K. A carrier for holding a flat pack integrated circuit during testing and marking operations consists of an apertured body of thermoplastic (e.g. polysulphone) or thermosetting resin with edge flanges 14, 16 on one face and two sets of upstanding ridges on the opposite face defining sets of aligned grooves 38 to accommodate the circuit leads. Indexing holes 24, 26, 28 and slots 18-22 and 30 to facilitate machine handling are provided in the flanges and the integrated circuit is held in place in the aperture with its faces fully exposed by a pair of resilient latches 58, 60. These consist of reduced section extensions of the outermost ridges and terminate in inwardly facing portions with oppositely inclined cam surfaces. To insert the circuit these surfaces are engaged by a mechanical device to force them apart. When released the latches spring back to a position overlying the outermost leads of the circuit thereby locking it in position.
Patent GB-1215294-A (GB)
Title: Potentiometers
Inventor: GALL DOUGLAS CRISP
IPC: G01R1/28
Filed: 1966-12-13
Abstract: 1, 215,294. Voltage measuring potentiometers. H. TINSLEY & CO. Ltd. Dec. 1, 1967 [Dec. 13, 1966], No. 55736/66. Heading G1U. A voltage measuring potentiometer incorporates at least first, second and third dials for representing scales of different orders of magnitude, each dial being associated with a corresponding dial resistance divided into a number of equal steps. The first and second dial resistances 13,14 are arranged in series for connection to and energization by a constant current power supply 12, the second dial representing a lower order scale than the first. The third dial resistance 16 in series with an associated series resistance 17 is connectible across any step of the first resistance by slide contacts 15a, 15b, the third dial representing a lower order scale than the second dial. The series resistance 17 is a substantial multiple of the third dial resistance 16, e.g. 99 times the third dial resistance, to reduce errors introduced by variations in contact resistance. Further lower order dial resistances 19, 22 may be similarly connected across steps of the resistance of next but one higher order to increase the resolution of the system, each dial resistance having a much larger resistor 20, 23 respectively in series with it. The system is adjusted to balance a voltage to be measured connected at 30, 31 with the switches 25, 29 as shown. By adjusting these switches to their alternative positions, the system may be calibrated with reference to the standard cell 33.
Patent GB-1503921-A (GB)
Title: Method of manufacturing combustion chambers for gas turbine engines
IPC: B23P15/00
Filed: 1975-12-19
Abstract: 1503921 Making combustion chambers ROLLS-ROYCE Ltd 19 Dec 1975 [24 Dec 1974] 55769/74 Heading B3A A method of making combustion chambers for gas turbine engines comprises electro-chemically machining a series of grooves 3 in one or both of strips 1, 2, bonding strips 1, 2 together, forming the bonded strips into an annulus 7 and bonding the annulus 7 between two cylindrical wall members 11, 12, 13. Alternatively, the grooves may be formed directly in an upset or deformed portion of the cylindrical wall members. The grooves 3 form holes allowing the entry of cooling air, and may be slanted to give the air a swirl, rough sided or have their ends chamfered or flared to affect the air flow.
Patent GB-1459610-A (GB)
Title: Commutator electric machine
IPC: H02K13/14
Filed: 1974-12-27
Abstract: 1459610 Commutators G N FRIDMAN V V ALEXANDROVSKY S B JUDITSKY I L LITVAK A B ALTMAN P R BARYSHEV O I SCHUSTER I V ZAITSEV V L MAMELOV N A MYASNOKOV P I FEDOTOV and M A OSTROUMOVA 27 Dec 1974 55922/74 Heading H2A A commutator electric machine has semiconductor rectifier elements built into its commutator segments. In the arrangement shown, the segments each comprise two contact bars 3, 4 and a current-carrying bar 1 having a tag 2 to which an armature winding lead (not illustrated) is connected, the bars being separated by insulation spacers 5 and incorporating two semiconductor rectifier elements 7 in a slot 6 at one end of the segment. The bars 3, 4 respectively form contact tracks (13, 14) for a pair of positive/negative brushes (15, 17) of a unidirectional flow commutator, as in Fig. 7 (not shown), or form corresponding tracks for two pairs of brushes (15, 17 and 16, 18) in a bi-directional flow commutator, as in Fig. 6 (not shown). In the arrangement of Figs. 4, 5 (not shown), each segment comprises a contact bar (8), a current carrying bar (9), and insulation (11), and has a built-in semi-conductor element (12), and is used in a two-commutator machine (Fig. 8, not shown) wherein one commutator (19) is contacted by positive brushes (22, 23) and the other by negative brushes (24, 25). In the unidirectional flow circuit arrangement of Fig. 9 (not shown), current flows from a positive brush (28) to a contact bar (29) of a segment, and then through a semi-conductor element (26) to a contact bar (30). From there, it travels to the armature winding (33) and returns via the contact bar (30), an element (27), a contact bar (31) and a negative brush (32). Fig. 10 (not shown) relates to a bi-directional flow system incorporating switching thyristors (38-41), the system being usable to control the speed of the machine by controlling the speed of switching. Figs. 14, 15 (not shown) relate to machines having interpoles (45), and Figs. 16-19 (not shown) relate to various internal connection arrangements in machines without interpoles.
Patent GB-1449219-A (GB)
Title: Electronic thread regulator for textile machines
IPC: B65H63/06
Filed: 1973-12-04
Abstract: 1449219 Pulse discriminators time delay circuits W REINERS VERWALTUNGS GmbH 4 Dec 1973 [5 Dec 1972] 56100/73 Heading H3T [Also in Division D1] In a circuit for thread breakage detection by detection of the interruption for a given period of the voltage from a thread detector, the period is reduced as the thread speed and thus the D.C. level of the voltage from the detector is increased. The D.C. signal derived from the thread detector is amplified at 5 and used to charge a timing capacitor 8c to a fixed value determined by a Zener diode 6b. It is also used to charge a storage capacitor 7d to a value dependent upon the D.C. signal level. When the signal is interrupted the timing capacitor discharges through transistor 8a at a rate determined by the stored value at its base and if the interruption is long enough a threshold level detector fires a thyristor (11) Fig. 2 not shown. Diodes are provided to reduce temperature instabillity.
Patent GB-1255274-A (GB)
Title: Improvements in circular hosiery machines
Inventor: SANGIACOMO FULVIO
IPC: D04B35/34
Filed: 1969-11-17
Abstract: 1,255,274. Knitting-machines. F. SANGIACOMO. 17 Nov., 1969 [5 Dec., 1968], No. 56103/69. Heading D1C. In a circular hosiery knitting machine a device for longitudinally slitting the work comprises a member 1 having a slit 4 through which protrudes a heating filament 5 which can be heated to sever the work. The member 1 and the heating filament 5 mounted thereon are removably positioned on the needle cylinder and contacts 7, 8 engage relatively fixed rings 9 which are provided with electrical energy by means of leads 11.