baber/WOPTO huggingface dataset:
Patent GB-263436-A (GB)
Title: Improvements in or relating to metal pipes
IPC: F16L58/10
Filed: 1926-08-23
Abstract: 263,436. Bock, M. Aug. 23, 1926. Metal pipes.-Rigid iron, lead, or other metal water pipes, gas pipes, &c. are lined by inserting a tube of soft unvulcanized or slightly vulcanized rubber which lies against the inside of the wall. The inner wall of the metal pipe and the outer wall of the rubber tube may be coated with paraffin &c., and the rubber tube caused to adhere by introducing warm air. In the case of lead pipes, the pipe may be extruded from a press k over a mandrel s, the end of the rubber lining tube c being secured to a stop a on the mandrel so that the lead pipe is forced over the rubber lining.
Patent GB-675506-A (GB)
Title: Connection for scaffoldings, shelves, racks and like constructions
IPC: E04G7/26
Filed: 1950-08-22
Abstract: 675,506. Scaffold clamps. TUBCOR INTERNATIONAL. Aug. 22, 1950 [Sept. 22, 1949], No. 20768/50. Class 20(ii) In a scaffold construction having two stirrups engaged by their middle parts and having clamps at the outer ends, one or both stirrups, 33, Fig. 1, have a middle portion adapted to accommodate an angle iron 32 on a tube 50, and the wing portions 43 are bent back to form arcuate hinging means for the clamps 46. The other stirrups may be of the same form, but in Figs. 1 and 2 this stirrup 34 has turned back ends to accommodate the heads of bolts 37 for a strap 35 clamping the tube in the stirrup 34. The ends of the wings 43 of the stirrup 33 bear on the tube 31. In a further modification, Fig. 3, (not shown), the straps 46 are replaced by a V-shaped strap and clamping bolts passing through slots in the wings 43 of the stirrup 33. An arrangement is described, Fig. 5, (not shown), in which two angle iron bars at right angles are clamped to a tube by means of two stirrups 33 with clamps 46, the two stirrups co-operating with a stirrup having two seats at right-angles and clamped to the tube. The Specification as open to inspection under Sect. 91, comprises also a scaffold clamp having two stirrups 1, 2, Fig. 1, (Cancelled), and engaged by the inner faces of their middle parts and having clamps 11 hinged on their free ends. Each clamp has a rounded end 13 engaging in a curved wing 6 on the stirrups and these parts are assembled by passing the wing 6 through a slot in the clamp 11, which is adapted to be clamped on to a scaffold tube by a bolt 21 projecting through a slot in a wing 7 of the stirrup. In a modification, Fig. 5 (Cancelled) (not shown), a stirrup has a flat wing carrying a pivot 25 bearing inclined faces engaging the wings on the stirrup and clamps to produce a clamping action. This subject-matter does not appear in the Specification as accepted.
Patent GB-614293-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B21/02
Filed: 1946-07-11
Abstract: 614,293. Optical systems. SCOPHONY, Ltd., and LEE, H. W. July 11, 1946, No. 20785. [Class 97 (i)] A system in which both conjugate planes and at least one stop plane are real and intended particularly as a microscope objective or telescope eyepiece, comprises a plurality of collective components 9, 10, 11, of which at least two are compound, followed by a meniscus component 12 which may be collective or dispersive and is convex to the collective components and a dispersive component 13 having a concave surface facing the meniscus. When used as an eyepiece, the collective components are adjacent the -eye, and when used as a microscope objective the object is placed adjacent the collective components. Data for one example of an eyepiece are given.
Patent GB-848064-A (GB)
Title: Polymerization process and product
IPC: C08F36/04
Filed: 1956-10-17
Abstract: Rubbery polybutadiene is prepared by means of a catalyst comprising MAIH4 (M = Na, K, Rb, Cs and preferably Li) and TiCl4, and preferably AlCl3; the MAIH4 is preferably used with a solvent (particularly an ether), and an inert diluent (e.g. benzene, toluene, xylene, ethylbenzene and paraffin with up to 10 carbon atoms) is preferably used in polymerisation.  Preferred conditions are (a) 0 DEG -150 DEG C. and pressure sufficiently to maintain the reaction mixture in the liquid phase; (b) ageing the catalyst in mid diluent before use, at about 30 DEG -100 DEG  C for 10 minutes-24 hours; (c) isolating the polymer by means of an alcohol, particularly isopropyl alcohol; (d) using an antioxidant, e.g. phenylbetanaphthylamine during isolation. The proportions of 1:2-, cis-1:4- and trans-1:4-structures in the polybutadiene are noted.  The products are blended and cured according to a conventional rubber compounding recipe.  The following applications are mentioned :-tyres, gaskets, tubing, heels, tile and covering for wire and cable.  Specification 776,326 also is referred to.ALSO:A catalyst for polymerizing butadiene comprises (a) MAlH4 wherein M is Na, K, Rb, Cs or preferably Li and (b) TiCl4. Additionally, AlCl3 may be used as a catalyst constituent. Preferably, (1) use is made of an inert diluent in mixing the constituents and in subsequent polymerization e.g. benzene, toluene, xylene, ethylbenzene and paraffins with up to 10 carbon atoms; (2) the MAlH4 is added to a solvent before use, e.g. dialkyl ethers such as diethyl ether and cyclic ethers such as dioxane and tetrahydrofuran; (3) the catalyst is aged before use at about 30-100 DEG C. for 10 minutes24 hours. Specification 776,326 also is referred to.
Patent GB-427940-A (GB)
Title: Improvement in machine for operating upon warps
IPC: D03J1/16
Filed: 1934-07-16
Abstract: 427,940. Warp-uniting machines &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Barber-Colman Co. ; River Street, Rockford, Illinois, U.S.A.) July 16, 1934, No. 20792. [Class 142 (ii)] In machines for warp-tying, warp-twisting, warp-drawing, &c. in which the foremost thread of a leased warp supported in the machine is separated by selecting means from the next adjacent threads, the adjacent threads are set off from the selected thread and from the selecting means by pusher devices acting adjacent the point of crossing of the leased threads. The threads are selected from the old warp by wings A, B and from the new warp by wings C, D. Each wing is carried by a sleeve which is oscillated on a lease rod 61<a>-61<d>, and is tapered from its outer end towards the hub, while its forward and rear sides are inclined rearwardly, as shown in Fig. 7. The pusher devices each comprise a finger 83 carried by a rod 84 rotatable in the sleeve and reciprocable axially therein. The rods 84 are connected by link devices whereby the free ends of the pusher fingers are maintained adjacent the warp crossings. In the position shown, the fingers 83 are moved outwardly from the selecting wings and their notched ends have pressed back the unselected threads c of the old and new warps. When the fingers are retracted, they lie flush with the outer faces of the selecting wings. When a thread has been selected, it passes behind and down the rear face of the wing where it is received in a camopened spring closed clamp 104. The warps held by the clamps are severed from the waste ends by shears 102, while the pair of selected ends connected to the harness and the warp beam are moved toward each other by projections 112 on the sleeves carrying the selector wings, parts 113 being provided to deflect the unwanted threads. The approached threads are moved by rakes into position to be acted upon by the knotter, and are clamped by one of the rakes against a spring while being withdrawn from the clamps 104 of the selector wings. The waste ends produced by the tying operation are removed by a reciprocating blade into a shoot from which they are prevented from returning by a spring-pressed member. Feeler-operated means is provided for stopping the machine in case one thread only is selected, while further feelers are provided to adjust the motion of the machine to compensate for differences in the spacing of the threads of the new and old warps.
Patent GB-349353-A (GB)
Title: Improvements in system of mounting of the fly-wheel on the shafts of thermic motors, and chiefly of multi-cylinder explosion engines for propelling land, sea, or aerial vehicles
IPC: F16F15/14
Filed: 1930-07-10
Abstract: 349,353. Universal joints. BUGATTI, E., Molsheim, Bas-Rhin, France. July 10, 1930, No. 20921. Convention date, Nov. 14, 1929. [Class 80 (ii).] A flywheel is elastically mounted on a shaft or clutch drum by rubber means provided with studs, nuts, and washers to effect radial and axial adjustment. A rubber ring, or rubber washers or blocks e are arranged between the clutch drum c on the shaft b and a fly rim d. Transverse studs m, integral with radial arms n are secured to the drum and carry nuts p<1>, p2 and washers q<1>, qz by which adjustment is effected. Other studs &c. are also provided to secure the rim d.
Patent GB-275989-A (GB)
Title: Improvements in and relating to brush-holders for dynamoelectric machines
IPC: H01R39/38
Filed: 1927-08-09
Abstract: 275,989. Schunk, L., and Ebe, H., (trading as Schunk & Ebe). Aug. 16, 1926, [Convention date]. Brush-holders. - A spring holder for the brushes of dvnamoelectric machines comprises (i) a coiled spring t attached at one end to a spindle m, (ii) a catch connected with the spindle in such a manner that rotation can be imparted to the spindle by moving the catch into engagement with a notch r so that the end g of the spring bears on the brush k, and (iii) gearing such as worm wheel e on the spindle and a worm c to enable rotation of the spindle to be effected for accurate adjustment of the spring pressure. A plate n, rotatably mounted on the spindle, carries the bearings u for the worm c and an eye v holding the catch d. The plate n is locked in position and the spring tensioned when the catch engages with the notch in the side of the brush-holder h, and accurate adjustment is effected by turning the milled head s on the worm shaft. According to the Specification as open to inspection under Sect. 91 (3) (a), the invention is not limited to brush-holders for dynamo-electric machines. This subject-matter does not appear in the Specification as accepted.
Patent GB-1532097-A (GB)
Title: Integrated gate assisted turn-off amplifying gate thyristor and a method for making same
IPC: H01L21/263
Filed: 1976-05-21
Abstract: 1532097 Thyristor devices WESTINGHOUSE ELECTRIC CORP 21 May 1976 [27 May 1975] 21027/76 Heading H1K An integrated thyristor device with a gateassist turn-off capability comprises main and pilot thyristors 23, 31 respectively having common cathode-base, anode-base, and anode regions 25-27 respectively, and spaced apart cathode regions 24, 32; an additional cathode region 35 adjoining a first major surface 21 forming a diode 34 with the common-cathodebase region 25; a gate electrode in ohmic contact with the region 25 and also with the cathode region 35 of the diode, a floating electrode 40 making ohmic contact with the region 25 between the thyristors and with the cathodeemitter region of the pilot thyristor, the device being characterized in that the transistor structure comprising the cathode-region 35 of the diode and the common cathode-base region adjoining the cathode region 35 has a current gain less than the ratio I FB /I g . where I FB  is the forward guide current triggering the main thyristor into the conducting state and Ig is the gate-assist current required to turn-off the main thyristor, the low value of the current gain enabling the main thyristor to be turnedoff by gate-assist through forward-bias of PN junction 36 of the diode without causing the main thyristor to retrigger into the conduction state. A low value, typically 0À2, of the current gain may be achieved by electron-irradiating the diode using a steel plate 50 as a mask, when the lattice-defects introduced decreases the carrier-life time.
Patent GB-260921-A (GB)
Title: Improvements in or relating to expanding trunks, cases and the like
IPC: A45C7/00
Filed: 1926-08-27
Abstract: 260,921. Schwarzenberger, H., and Schmidt, W. Aug. 27, 1926. Cases designed to be of variable capacity.-In an expanding case &c. the hinges and fastening means comprise flexible bands, each of which is rigidly secured at one end to either the lid or body of the case and is adapted for adjustable connection with the other element of the case. The hinge bands 3 are preferably secured to the lid 2 and pass through slots 6 in the body 1 wherein are provided studs 7 with which slots in the bands engage. The fastening bands 8 are also secured to the lid and are held towards their free ends by pins 12 of locks 11, loops being provided on the bottom of the body to receive the free ends of the bands. The bands may be of leather, flexible metal, chain, &c.
Patent GB-814895-A (GB)
Title: Improvements in or relating to aircraft armament
IPC: F41A21/32
Filed: 1955-07-21
Abstract: 814,895. Gun mountings for aircraft. FOLLAND AIRCRAFT Ltd., and PETTER, W. E. W. July 23, 1956 [July 21, 1955], No. 21190/55. Class 4. [Also in Group XXI] An aircraft gun is mounted between the fuselage wall (not shown) and the fairing 13 of a forward-facing scoop-type air intake 14 with its muzzle aimed forwardly through the lip 15 where the front of the fairing meets the outer edge of the intake opening. The barrel 16 of the gun is surrounded by a first pressure chamber 18 extending forward of its muzzle and situated behind a second pressure chamber 23 ; the chambers 18 and 23 being vented to the atmosphere at their sides 26 and/or rear 22 and having convex baffles 20 and 24 at their front ends with holes to allow the passage of the bullet. The blast chamber may be further raised forward of the second chamber 23 as at 25.
Patent GB-169326-A (GB)
Title: Improvements in reversible handles for perambulators and other like vehicles
IPC: B62B9/20
Filed: 1920-07-14
Abstract: 169,326. Field, E. D. July 14, 1920. Draught and push bars.-An adjustable reversible handle for perambulators, folding baby carriages, invalid carriages, &c. comprises a U- shaped bar having the ends of each arm a, Figs. 1 and 4, slotted at c to engage pivots d on the ends of a central transverse bar e secured to the body or undercarriage of the perambulator &c., the handle being held in various positions by the engagement of a stop m on each arm a with one of a series of notches l on a quadrant k. The stops w are held in engagement with the quadrants by springs p, the engagement being released by a pull on the handle-bar. The ends of the quadrants k are turned up at j and secured to the ends of bars g, which are secured centrally to the ends of the transverse bar e. As shown in Fig. 4, the bar e is secured to the frame of a perambulator &c. by means of a plate w and bolts u, u<1>. In the modification shown in Fig. 5, notches l<1> are formed on the inside of the quadrant k<1>, and the arm a<1> of the handle-bar is provided with a spring- controlled telescopic end y so that the stop on the arm a<1> is released from engagement with the quadrant by pressure on the handle-bar. Movement of the member y is limited by a set-screw 1 carried by the member y and engaging a slot z in the arm a'. In a further modification shown in Fig. 6, the stop is carried by a block 4, which slides downwardly in the arm 5 of the handlebar against the action of a spring 11. The stop projects through a slot in the arm 5, and the block 4 carries a rod 6 which bears against a cam mounted on the end of a handle 7 which is hinged at 15 to the arm 5. A link 8 pivoted at one end 9 to the arm 5 has a pin-and-slot connection at its other end with the handle 7. The stop is released from engagement with the quadrant by lifting the handle 7. The arms of the reversible handle may be jointed for folding.
Patent GB-624368-A (GB)
Title: Improvements in and relating to shedding motions
IPC: D03C1/14
Filed: 1946-07-16
Abstract: 624,368. Dobbies. STAUBLI, R., STAUBLI, H., and STAUBLI, O., (trading as STAUBLI & CO., GEB.). July 16, 1946, No. 21287. Convention date, July 16, 1945. [Class 142 (i)] In a dobby which can be reversed for unweaving, the sheds for the last two picks are read from a paper pattern 2 by reading needles 5<SP>1</SP>, 6<SP>1</SP>, and the sheds for the next two picks are simultaneously read by needles 5, 6 ; but only those draw hooks 32 fall into the path of the lifting knife 33 which have to open the next shed if the dobby is running forwards, or which have to open the preceding shed if the dobby is being turned backwards, the draw hooks associated with the other lifting knife (not shown) remaining still, even though the sheds to be formed by them have been read from the pattern. Each draw hook 32 is moved into or out of the path of the lifting knife 33 by a rising rail 9 acting through a lifting needle 15 which has a flexible joint 15c so that it can be swung clear of the rising rail. The lifting needle is embraced by two push needles 18, 19 from which hang the reading needles 5, 6. The other set of draw hooks (not shown), actuated by another lifting knife, is similarly controlled by a rising rail 10, lifting needles 16, push needles 18<SP>1</SP>, 19<SP>1</SP> (alternating with the needles 18, 19) and the reading needles 5<SP>1</SP>, 61. All the reading needles are lifted by bars 25 to clear the pattern 2 as it is advanced ; when the bars 25 allow the reading needles to fall, the needles which encounter blanks in the pattern hold up their push needles so that cranked parts 18a are clear of driving bars 7, 8. The driving bar 7 operates the push needles 18, 181 when the dobby is running normally ; the driving bar 8 operates the needles 19, 191 when the dobby is turned backwards. In order that the driving bar 7 shall affect only the lifting needles 15 or 16 operated by the rail 9 or 10 which is to rise next, its shoulder 7a which engages the push needles 18, 181 is notched as shown in Fig. 4, and in addition to operative strokes imparted to it by a cam 21 through a follower 22, the bar 7 is shogged after each stroke by the side of the cam 21 acting through a follower 22a. During reverse running, the driving bar 8 is operated in the same way by a cam 20, the bar 7 then being stopped. Specification 271,825, [Class 142 (i)], is referred to.
Patent GB-411317-A (GB)
Title: Improvements relating to slop-pails, buckets and other hollow-ware articles
IPC: A47J47/19
Filed: 1933-12-12
Abstract: 411,317. Buckets &c. BRADLEY, W., 90, Empress Road, Derby. Dec. 12, 1933, No. 21415. [Class 66.] To reduce noise, the ends of the bail handles of slop pails, buckets, coal hods, and the like are fitted with washers 5, Fig. 5, of indiarubber or other resilient material disposed to lie at either side of the cranked attachment ears 4, the ends being screw-threaded and fitted with nuts 6. The separate washers may be replaced by caps 15, Fig. 7, fitted over the ears. The wooden grip portion of the handle may be covered with rubber. The cover, fitting within the vessel, may have the edge covered with rubber, and the foot of the vessel may have a channelled rubber covering 11, Fig. 4, retained in place by an attachment wire 12 disposed in a housing 11<a>.
Patent GB-1330586-A (GB)
Title: Process for rubber polyphenylene ether
IPC: C08G65/44
Filed: 1971-04-19
Abstract: 1330586 Polyphenylene ether and rubber compositions GENERAL ELECTRIC CO 19 April 1971 [9 March 1970] 21419/71 Headings C3R and C3P A composition comprising a polyphenylene ether and a rubber is obtained by polymerizing a monomeric phenol in a liquid reaction medium containing dissolved rubber and then adding a liquid non-solvent for the polymeric components to precipitate the polyphenylene ether and rubber composition. The phenol is polymerized by adding a complex catalyst formed from a copper salt and an amine, to the reaction medium and passing oxygen-containing gas through the medium. The reaction medium also may contain a styrene polymer. In examples the phenol is 2,6-dimethylphenol and the rubbers are cis-polyisoprene, a styrene-butadiene block copolymer, polybutadiene, rubber modified polystyrene and styrene-butadiene copolymer; in some instances polystyrene is present in the reaction mixtures; the reaction media are toluene and benzene and the precipitant is methanol. Other rubbers, solvents and precipitants are mentioned.
Patent GB-826487-A (GB)
Title: 1-thienyl-3-amino-propanol derivatives
IPC: C07D333/20
Filed: 1956-07-11
Abstract: The invention comprises compounds of the formula <FORM:0826487/IV (b)/1> wherein R is a cycloalkyl radical, R1 is a thienyl radical or an alkyl-substituted thienyl radical, Y is an ethylene group and <FORM:0826487/IV (b)/2> is an aliphatic tertiary amino group wherein X and X1 are alkyl groups of 1-6 carbon atoms which are optionally joined either directly or through a hetero-atom to form a saturated heterocyclic group such as piperidine, morpholine or pyrrolidine, and acid addition and quaternary salts of these compounds.  The compounds are made by reacting a ketone R1.CO.Y.NXX1 or R.CO.Y.NXX1 with an organo-metallic compound RM or R1M, respectively, wherein M is an alkali-metal or a halomagnesium group, and hydrolysing the resultant complex.  The products may be converted into acid addition salts such as the hydrohalides, nitrate, phosphate, sulphate, acetate, citrate, tartrate, lactate or quinolinate or quaternary salts with alkyl, alkenyl or aralkyl esters of strong acids such as methyl, ethyl, propyl, or allyl bromides, iodides or chlorides, methyl sulphate, methyl benzenesulphonate, methyl p-toluenesulphonate, benzyl halides or substituted benzyl halides such as p-nitro-, p-chloro-, o-chloro-, p-methoxy- or p-methylsulphonyl benzyl chloride.  The products are used pharmaceutically as anti-spasmodic agents.  The optically active isomers may be obtained by combining the racemic compound with an optically active acid and recrystallizing.  In examples: (1) b -diethylaminoethyl 2-thienyl ketone is treated with cyclohexyl magnesium bromide to give 1-(2-thienyl)-1-cyclohexyl-3-diethylamino - 1 - propanol hydrochloride; (2) the method of (1) is used to prepare 1-(2-thienyl)-1 - cyclohexyl - 3 - (1 - piperidyl) - 1 - propanol; (3) the product of (2) is converted into its d-bitartrate and recrystallized whereby the d- and l-salts and corresponding free bases are separated, the latter being purified by recombination with l-tartaric acid and converted subsequently to its hydrochloride and quinolinate; and (4) the product of (2) is converted into its quaternary methobromide: by similar methods 1-(2-thienyl) - 1 - cyclopentyl - 3 - (4 - morpholinyl)-1-propanol, 1 - (2 - thienyl) - 1 - cyclohexyl - 3 - (1 - pyrrolidyl) - 1 - propanol, 1 - (3 - thienyl) - 1 - cyclohexyl - 3 - (1 - piperidyl) - 1 - propanol, 1 - (2 - thienyl) - 1 - (4 - methylcyclohexyl) - 3 - dipropylamino - 1 - propanol, 1 - (2 - thienyl) - 1 - cyclopentyl - 3 - (4 - methyl - 1 - piperidyl) - 1 - propanol and 1 - (3 : 4 - dimethyl - 2 - thienyl) - 1 - cyclohexyl - 3 - (1 - piperidyl) - 1 - propanol can be prepared. Amino - alkyl ketones of the formula R1CO.Y.NXX1 or R.CO.Y.NXX1, especially the amino-ethyl thienyl ketones corresponding to the products of the above examples are made by the condensation of a ketone R1COCH3 or RCOCH3 with formaldehyde and an amine HNXX1. Specification 646,198 is referred to.