baber/WOPTO huggingface dataset:
Patent GB-1298628-A (GB)
Title: Polyamide compositions
Inventor: KATO TETSUYA
IPC: C08K5/521
Filed: 1970-06-10
Abstract: 1298628 Antistatic polyamides TORAY INDUSTRIES Inc and SANYO CHEMICAL INDUSTRIES Ltd 10 June 1970 28054/70 Heading C3R Antistatic properties are imparted to synthetic linear polyamides by incorporation of 0À5 to 15 wt. per cent of a phosphoric ester component which is predominantly a triester of the formula obtained by triesterifying an addition product of a compound containing a carbonamide group and ethylene and/or propylene oxide. The balance of the ester component may be metal salts of the mono- and di-esters whose similar use is described and claimed in Specification 1,226,114. It is stated that predominantly triesterification may be accomplished by using a strong esterifying agent such as phosphorus oxychloride. Specified compounds containing carbonamide groups are 4 to 13 member lactams, oligomers up to the hexamer thereof, or of the corresponding amino acid, and up to trimers of a diacid and diamine. Specified polyamides are nylons 6, 66, 7, 8, 610, 11 and 12 and poly-pxylylene dodecanoamide. Various techniques for incorporating the antistatic agent are described. U.-V. and heat stabilizers, delustrants, dyes and pigments may also be incorporated. Uses.-The antistatic polyamides are particularly useful as fibres for various textile uses but reference is also made to their use in other shaped articles.
Patent GB-835331-A (GB)
Title: Improvements in or relating to valve assemblies for controlling fluid flow
IPC: F15B13/08
Filed: 1957-09-05
Abstract: 835,331. Valves. PARKER-HANNIFIN CORPORATION, [formerly PARKER APPLIANCE CO.]. Sept. 5, 1957 [Sept. 6, 1956], No. 28057/57. Class 135. A unitary valve housing 1, Fig. 3, is provided with an inlet 2, an outlet 3 and two parallel bores 7, 8 in which are slidably disposed valve spools 17, 18, respectively, each being spring-centred into the neutral position shown; the four lands of each spool are " V " notched. Passages 11, 12, 14 connect different parts of each bore 7, 8 with the outlet 3 whilst bore 8 has an additional outlet connection 13. Each pair of ports 19, 19 and 20, 20 is connected to a double-acting hydraulic motor, not shown, whilst the inlet 2 opens directly into a passage 6 leading into the bore 7 and into ports 9, 10 in bores 7, 8 disposed between the motor ports. The bores 7, 8 are interconnected by a by-pass 15. A spring- loaded check valve is located in each connection between passage 6 and ports 9, 10 whilst an adjustable spring-loaded relief-valve is provided in a connection between passages 6 and 11. With the spools 17, 18 in the position shown, fluid flows from the inlet 2 to outlet 3 via passages 6, 13 and by-pass 15, the motor ports being blocked; upon moving one or both spools in either direction the by-pass 15 is closed and one of the ports 19, 20 is supplied with pressure fluid from port 9 or 10 whilst the other motor port 19 or 20 is connected to the outlet 3 by passages 11 or 12. A port 25 is provided to accommodate a fitting which enables a second valve housing to have its inlet connected with inlet 2. In a modification, a three-landed spool 42, 46, Fig. 7, is used in bore 8, the upper motor port 20 in the latter being plugged. The passage 12, Fig. 3, is replaced by ports 43, 44, Fig. 7, associated with bore 7 and communicating with by-pass 15 which, via a check valve, communicates with a passage leading to the motor port 20 whilst bore 8 is provided with two ports 46 opening to the outlet 3. A single-acting motor is connected to the upper port 20. Separate movement of either spool causes actuation of the motor associated therewith but if both are translated the single-acting motor is operated by the fluid discharged from the double-acting motor connected to ports 19. The single-acting motor may be replaced by a double-acting one if spool 42 is replaced by a four-landed closure and the lower port 20 is unplugged.
Patent GB-145339-A (GB)
Title: Improvements in or relating to straining or filtering apparatus
IPC: B01D29/03
Filed: 1919-11-13
Abstract: 145,339. Fulcher, F. C. Nov. 13, 1919. Strainers. - A slotted cylindrical or plane strainer is combined with a scraper the blades of which pass into the slots and are in permanent engagement therewith, the strainer and blades being capable of relative rotation or reciprocation. On the form shown in Fig. 1, a cylinder a has four slots 1 and is mounted in a. housing 6. Blades 5 carried by a spindle 4 project into the slots and are capable of to-andfro movement therein. In a modified construetion, Fig. 4, the blades pass into slots between disks 9 mounted on the spindle 4 and rotated by means of a handle b, the blades,being prevented from rotating by stops on the casing; or the casing and scrapens, or both the scrapers and the disks may be rotated. In. another form, the strainer takes the form of a cylinder with a helical slot, which the scrapers traverse on rotation. In another form, Fig. 13, the strainer 17 is flat and has circular slots in which move scrapers 5 on a disk 16. Other forms differing in detail from some of the above are described. The dirt dislodged by the scrapers may be removed by bypassing some of the fluid through a valve in the casing or the dirt may be allowed to accumulatein a sump.
Patent GB-172934-A (GB)
Title: Process for the manufacture of a light sheet metal warpable surface
IPC: B64C1/12
Filed: 1921-10-24
Abstract: 172,934. Soc. Anon. des Ateliers d'Aviation L. BrÚguet. Dec. 15, 1920, [Convention date]. Ironwork, constructional.-A light and flexible metallic sheet suitable for covering aircraft and other structures and consisting of very thin sheet iron strips a of channel or other section connected by clamps b and hollow rivets c, is placed on the structure so that the clamps are on the inside. The clamps may be riveted before or after the surface is placed in position.
Patent GB-305058-A (GB)
Title: Improvements in electromagnetic reproducing and recording devices for gramophones
Inventor: LINSELL ALFRED AUBYN
IPC: G10K11/08
Filed: 1927-10-25
Abstract: 305,058. Linsell, A. A. Oct. 25, 1927. Phonographic recorders and reproducers; diaphragms; magnetic instruments. - The vibratory member of an acoustic instrument. such as a phonographic recording and reproducing device, microphone &c., has associated thenewith one or more substantially reflectionless lines of rubber or the like folded or bent back upon themsselves one or more times. In the construction Fib. 1, a freely pivoted stylus bar 1 carries or is formed integral with an armature 3 which may be provided with stiffening ribs and which co-operates with an electromagnetic. system 4, 5. A rod or tube 7 of rubber &c. is secured at one end on the member 6 at the upper end of the bar 1, and lias its other end connected by a washer 8 with a concentric tube 9, the parts 7, 8, 9 forming the reflectionless line. The inner end of the tube 9 is secured by a band clip 10 to a projection on the casing housing the electromagnetic mechanism, Means may be provided for adjusting the reflectionless line which may be enclosed within a light protecting cover. Material, such as rubber sponge, cotton wool &c., may be inserted in the space between the rod 7 and tube 9 and/or between the tube and cover. In modified constructions, the reflectionless line may be made integrally in the form of a re-entrant tube, Fig. 3, or by splitting a tube longitudinally for half its length a plurality of times, Fig. 7, the freed portions being bent back as shown. Fig. 8 shows a construction smilar to that shown in Fig. 1, but in which the inner end of the tube 9 is pressed against an outer container 12 by an externally expanding spring clip 10<a>. The reflectionless line may, if desired, be attached to the stylus bar either above or below the point of attachment of the armature 3 or may be arranged in line with the stylus bar instead of at right angles thereto as shown in Fig. 1. Further modifications are described in which a strictly limited amount of reflection is provided. Thus, as shown in Fig. 9, a number of intermediate connecting members 13 in the form of steel needles, pins, wooden plugs, rubber &c. washers or the like are embedded in the reflectionless line. Other forms of construction for this purpose comprise (a) the insertion of a stiff spring between the bar 1 and rod 7, (b) the attachment of the bar 1 to the rod 7 by a U-shaped steel wire 17, Fig. 13, or (c) the provision of a member 15, Fig. 12, of mica, bamboo or cane inserted in the tube 7 and attached to the bar 1 by nuts 16. Fig. 15 shows a construction of microphone in which the magnetic diaphragm 1<1> and cooperating electromagnetic systems 4<1> are carried at opposite ends of a reflectionless line 7<1> constituted by a re-entrant rubber tube.
Patent GB-391474-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B23K9/073
Filed: 1931-10-12
Abstract: 391,474. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Nagashev, B. V. ; 878, Western Avenue, Lynn, Massachusetts, U.S.A.) Oct. 12, 1931, No. 28315. Convention date, Oct. 11, 1930. [Class 38 (iv).] An A.C. motor in a regulating system con. trolling, for example, an induction regulator has its armature connected across a bridge 8 .. 11 constituted by coils of a magnetic structure of its field 22 is constantly excited, A magnetizing coil 25 on the structure disturbs the balance of the bridge according to the degree of magnetization thereof and so causes the motor to rotate in one direction or the other. If the magnetizing coil 25 is traversed by direct-current, the coils 8, 9, 10 are divided between two magnetic structures, the coil 25 being associated with one of the structures. The field of the motor may be divided and constitute part of the two arms of the bridge. The motor may be used as the feed motor of an arc-welding machine, the coil 25 being energized according to arc voltage, to welding current, or to both of these. Specification 256,221, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Patent GB-1479281-A (GB)
Title: Linear actuator mechanisms
IPC: E05F11/48
Filed: 1974-06-12
Abstract: 1479281 Gearing for converting rotary motion into reciprocating motion G W FLOYD 12 June 1974 [14 June 1973] 28435/73 Heading F2Q [Also in Division E2] A linear actuating mechanism (e.g. for sliding doors and windows and particularly suitable for electrically operated vehicle window winders), comprises a motor driven pinion A which applies different linear speeds in the same direction to an endless belt-the resulting imbalance is transmitted to two idler pulleys at least one of which is freely movable in a guide which imposes on said pulley a linear motion. As shown in Fig. 1 pinion A acts on two gear-wheels B, C (B having less teeth than C) which have wheels B1 C1 to engage belt portions D1, D2 and idler pulleys El, E2 are linked by a rod F and guided to move linearly. In the embodiment shown in Fig. 3 a slider F movable in a slot S carries the idler pulleys. The toothed drives may be replaced by friction drives if necessary. In a modification of the device shown in Fig. 1 pulley E1 is guided to move in a linear path while pulley E2 follows a non-linear path extending transversely to the path of E1.
Patent GB-1116766-A (GB)
Title: Probe
IPC: A61B5/00
Filed: 1966-06-24
Abstract: 1,116,766. Measuring blood pressure; surgical electrodes. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 24 June, 1966 [24. June, 1965], No. 28444/66. Heading ASK and A5R. [Also in Division G1] An electrode comprises a tube having two longitudinally extending bores, one bore 1 housing a cathode 5 and an anode 7 for determining the partial pressure of oxygen in a liquid, e.g. blood, and having a lead 11 with an end 11' projecting through the tube wall for obtaining an electro cardiogram and the other bore 2 providing for measuring blood pressure monometrically.
Patent GB-924030-A (GB)
Title: Bags
IPC: B65D33/26
Filed: 1961-08-08
Abstract: 924,030. Bag closures. BEMIS BROS. BAG CO. Aug. 8, 1961, No. 28653/61. Classes 94(1) and 94(2). A paper bag which may be multiply is closed by stitching a folded-over tape 29 to the mouth by chain stitch, the tape extending beyond the closure at least at the end 15 from which the stitching may be unravelled and the stitching being temporarily locked against unravelling in the extension. Locking may be achieved by bending back the extension 15 and adhesively securing it to the bag side leaving an extremity free for gripping, Fig. 4, or to the tape proper, Fig. 1 (not shown). Alternatively a spot of glue or a staple 33 may be applied to the extension. The stitching may be applied through a ribbon 17.
Patent GB-889003-A (GB)
Title: Synthesis of diamines
Inventor: MADOR IRVING LESTER
IPC: C07C209/02
Filed: 1959-08-21
Abstract: Substituted or unsubstituted diamino dimer derivatives of C4-8 aliphatic or cycloaliphatic conjugated diolefinic hydrocarbons are prepared by maintaining in the liquid phase a hydroxylamine having the formula RR1N-OH (where R and R1 are hydrogen atoms, aliphatic radicals and/or aromatic radicals) or the formula R11=NOH (where R11 is a substituted methylene group) and in an amount at least substantially equivalent to the hydroxylamine, a C4-8 aliphatic or cycloaliphatic conjugated diolefinic hydrocarbon; reacting said hydroxylamine in situ with a salt of a multivalent metal in an amount substantially less than equivalent to the hydroxylamine, in order to provide, by reduction of the hydroxylamine by the metal, free amino radicals for the reaction, the metal thus oxidised to a higher-valent non-reducing form being simultaneously reduced in situ to its lower-valent reducing form for further reaction with the hydroxylamine.  The simultaneous reduction may be achieved (1) by carrying out the reaction in the presence of a metal higher in the electromotive series of elements than the metal of the salt that is oxidized in the reduction of the hydroxylamine; (2) by carrying out the reaction in an electrolytic cell; and (3) by carrying out the reaction in the presence of hydrogen and a hydrogenation catalyst, in which case the double bonds of the dimer are simultaneously hydrogenated to give a saturated product.  Specified diolefin starting materials are butadiene, isoprene, dimethyl butadiene, pentadienes, methyl-1,3-pentadiene, cyclohexadiene-1,3 and cyclopentadiene. Specified multivalent metal ions are Ti, Sn, Mn and V.  Such ions may be added initially in a higher-valent non-reducing form and reduced in situ to a lower-valent reducing form.  If desired the reaction may be conducted in an inert solvent.  The examples describe the preparation of diaminooctadiene and diaminooctane. Specifications 802,185, 804,312 and 821,984 are referred to.
Patent GB-375653-A (GB)
Title: Improvements in or relating to pendulums
IPC: G04B17/02
Filed: 1931-10-15
Abstract: 375,653. Clocks. SCHULER, M., 26, Am Goldgraben, G÷ttingen, Germany. Oct. 15, 1931, No. 28720. Convention date, Oct. 15, 1930. [Class 139.] Pendulums.-In a pendulum for measuring time, the distance from the point of suspension A to the centre of gravity S is equal to the radius R of gyration of the pendulum mass about an axis which passes through the centre of gravity and is parallel to the pendulum's axis of oscillation. This radius is given by the formula R = #I/m, where m is the mass of the pendulum and I the moment of inertia of the pendulum about the axis through the centre of gravity. The pendulum may consist of a rod with a weight w at the bottom and an additional weight w<1> (1) above, (2) below, or (3) at the point of suspension of the pendulum. The pendulum may consist of a cylindrical rod without weights. In (1) and (2) the additional weight is smaller and greater respectively than the bottom weight. Figs. 5 and 6 show a pendulum with weights according to (1) integral with it. The pendulum p is suspended by knife edges a<1>, a<2> on stones a<3>, a<4> on the support b. In the case of the cylindrical rod pendulum R = ¢ #r<2>+1/3h<2> where r is the radius and h is the length of the cylindrical rod. Electric clocks.-Figs. 5 and 6 show an arrangement in which the pendulum is reenergized electromagnetically. The pendulum carries a permanent horseshoe magnet c which oscillates close to a coil d which is energized in each direction of swing of the pendulum through a contact f<2>, or f<3>, against which a contact blade f<1> is pressed by the end t of the pendulum. Preferably the whole device is enclosed in a gas-tight case el, e<2> filled with hydrogen or helium. A pendulum with the additional weight w<1> just below the leaf spring suspension of the pendulum, is shown applied to the ordinary anchor escapement.
Patent GB-1535189-A (GB)
Title: Cable clamps
IPC: F16G11/06
Filed: 1976-10-08
Abstract: 1535189 Clamps CABLE SUPPORTS Ltd 8 Oct 1976 [8 July 1975] 28748/75 Heading E2B A cable clamp has two arms 11, 12 pivoted to a base 10 and fastenable together e.g. by nut and bolt 13, 14. The arms each bear a pad 23 of, for example, nylon which clips by means of projections 25 (Fig. 4) into grooves 22 in the arms. The base 10 may also bear a similarly mounted pad. The pads have a small longitudinal motion permitted so that cables 26 may be easily clamped. The arms and base are preferably of glassfilled nylon about a steel core.
Patent GB-935241-A (GB)
Title: Improvements in or relating to potentiometers
IPC: G05D3/12
Filed: 1958-09-08
Abstract: 935,241. Electric positional control systems. SERVOMATIC HYDRAULICS (GUILDFORD) Ltd., and C. F. WOLFENDALE. Sept. 4, 1959 [Sept. 8, 1958], No. 28794/58. Class 40(1). A transducer for e.g. measuring the position of a machine tool relative to a workpiece, comprises an axial assembly.of ring electrodes fed with successively greater A.C. voltages, and a co-operating, relatively movable, coaxial counter-electrode whose potential, picked up from its opposite ring electrode, is indicative of its position, and may be used to control the position of the tool relative to the workpiece. Construction (Fig. 1). A series of conductive rings 1 separated by insulating washers 2 and mounted on a tube 3 with an insulating coating 4, are rigidly assembled between end-plates 9, 10. Symmetrically below the assembly are two guide rods 13 for a carriage carrying a pick-up electrode 12 insulated by washers 17, 18 and rings 19, 20, the carriage being earthed to act as a guard ring for the pick-up electrode. Connections to the ring electrodes 1 are made by spring contacts 24 and leads 25, and connection to the pick-up electrode 12 by a spring contact 26. In a modification (Fig. 4, not shown), the pick-up electrode is mounted centrally, and is surrounded by the series of insulated, conductive rings. Circuitry (Fig. 3). The ring electrodes 1 are separately connected to the tappings on an auto-transformer T1 energized by an oscillator comprising valves V5, V6 whose anodes are interconnected by a parallel tuned circuit. The pick-up electrode 12 is connected to the grid of a valve V1 whose cathode is fed with a reference potential obtained from a bank of five autotransformers T1-T5, each having ten taps and energized by one-tenth of the voltage across the preceding transformer, so that the voltage between the centre tap of T1 and the tap on T5 can be selected to within <1>/100,000th of the voltage across T1. This potential can be modified by a further voltage obtained from decade transformers T6-T10, the two voltages being added in a centre-tapped autotransformer T11. The difference between the grid and cathode potentials of V1 is amplified and rectified by a phase-sensitive detector comprising diodes V7, V8, a meter M indicating the magnitude and sense of the difference between the signal voltage on pick-up electrode 12 indicating the actual position of electrode 12, and the reference voltage indicative of the required position of electrode 12. This difference may be used to adjust the position of electrode 12, and its carriage, automatically by a servo system. The relationship between the displacement of electrode 12 from its central position and its voltage may be made exactly linear by algebraically adding correcting voltages to each of the ring electrodes 1 from an auxiliary transformer, as required.
Patent GB-248291-A (GB)
Title: Improvements in the manufacture of rollers for printing wallpaper, fabric and the like
IPC: B41C1/18
Filed: 1925-11-16
Abstract: 248,291. Leak, W. A. Nov. 16, 1925. No Patent granted (Sealing fee not paid). Printing-surfaces.-A printing-roller for printing wallpaper, fabrics, &c. is prepared by cementing a sheet of felt to a wooden roller, cutting away parts of the felt to leave the design in relief, coating the whole with copper by electrodeposition, and turning the roller in a lathe to remove the copper from the printing-surface of the felt. Specification 10039/89, [Class 101, Printing other than letterpress &c.], is referred to.
Patent GB-536374-A (GB)
Title: Improvements in and relating to tractor drawn vehicles or implements
IPC: B62D53/02
Filed: 1939-10-27
Abstract: 536,374. Tractor-drawn implements. JENNINGS, H. W. K. (Le-Tourneau, Inc., R. F.). Oct. 27, 1939, No. 28864. [Class 68 (i)] [Also in Groups XXXI and XXXII] A combined tractor and implement comprises a .tractor mounted to tilt in a vertical longitudinal plane on a pair of wheels driven by the tractor, and an implement similarly tiltable on a rear wheel or wheels and connected tc the tractor by means permitting relative tilting in said plane while the combination is in motion, means for controlling the tilting from the tractor being provided. An earth scraper 1 is mounted on rear wheels 2 and forwardly carries horizontal pivots 4 for a draft unit 7 carrying spaced eyes 8 rotatable about longitudinal axes. The tractor 9 is mounted on independently driven wheels 13 and carries a clevis 14, while another clevis 15 is carried by a draft bar 16 swingable horizontally about an axis intersecting the axis of wheels 13. The eyes 8 are held in the clevises by pins 18, the eyes 8 being normally respectively nearer to the upper ear of clevis 14 and lower ear of clevis 15 to allow relative lateral tilting of the scraper. Sheave blocks 21, 23, are respectively carried by a beam 20 pivoted to the scraper and by the draft units 7, a cable 22 passing over the sheave blocks and controlling relative vertical tilting of the tractor and scraper. Specification 536,404 is referred to.