baber/WOPTO huggingface dataset:
Patent GB-384552-A (GB)
Title: Improvements in or relating to fluid-pressure engines for operating and controlling d
IPC: E05F15/56
Filed: 1932-05-11
Abstract: 384,552. Door-operating appliances. NATIONAL PNEUMATIC CO., 420, Lexing- ton Avenue, New York, U.S.A. May 11, 1932, No. 13613. Convention date, Dec. 29, 1931. [Class 65 (i).] A fluid-pressure engine, more especially for operating vehicle doors and the like, comprises a cylinder 1 closed at both ends by caps 2, and containing a pair of pistons 12, 15, connected by a hollow rod 13. Rods 25, 26 are slidably mounted on the pistons to engage each a check valve and cushion the movement towards the ends of the strokes. The cylinder caps 2 carry bored extensions 4 for connection by pipes with a valve adapted in one position to place the opposite ends of the cylinder under vacuum and atmospheric pressure respectively, and, in another position, to reverse these pressures to actuate the door-operating mechanism or the like which is connected to a bracket 20 carried by a sleeve 17 on the rod 13. Each extension 4 has a ball check valve 8 adapted to seat, under pressure, against a ring 6. Grooves 10 and a small pressure byepass passage 14 to prevent stalling are formed in the walls of the extensions 4. Springs 27, 28 are held between a pin 22 carried by the piston-rod 13 and shoulders on the outer ends of the rods 25, 26 so that, as the pistons move towards the ends of their strokes, one rod opens the corresponding check valve 8 and its spring is compressed. Return movement of the piston, on operation of the control valve mentioned above, results in this spring being gradually released and compression of the opposite spring, when the opposite rod engages its check valve and the piston is slowed down.
Patent GB-1427293-A (GB)
Title: Reciprocating pump
IPC: F04B53/12
Filed: 1974-03-28
Abstract: 1427293 Reciprocating pumps CAT PUMPS INTERNATIONAL 28 March 1974 [2 April 1973] 13719/74 Heading F1A In a pump comprising a bucket piston 8 reciprocated in a cylinder 3 by a piston rod 7, a replaceable sleeve 19 surrounds the rod and slidingly and sealingly engages a seal 20 to prevent wearing of the rod by the seal. Seals 17, 18 are provided between the sleeve and the rod. A step 21 formed between different diameter portions of the rod reduces migration of liquid along the rod. A second seal 22 engages the larger diameter portion of the rod. Piston 8 is movable between an imperforate plate 11 and a perforated plate 12 to permit flow through piston passage 9 during the return  stroke, and prevent such flow during the forward stroke, delivery taking place via check-valve 16. In Fig. 2 (not shown), step 21 is omitted and sleeve 19 extends along the whole length of the piston rod. In Fig. 3 (not shown), two short sleeve portions (19À3a-b) mounted on the piston rod slidably engage respective seals (20, 22À3). In Fig. 5 (not shown), sleeves (19, 19À5) are provided on the larger and smaller diameter portions of a stepped piston rod.
Patent GB-349749-A (GB)
Title: Improvements in fly-wheel ignition magnetos of internal combustion engines
IPC: H02K21/22
Filed: 1930-05-05
Abstract: 349,749. Magneto-electric machines. CHRISTIANSEN, H., Pinneberg, Germany. May 5, 1930, No. 13786. [Class 35.] In an ignition magneto especially for small internal-combustion engines, the hollow flywheel space enclosing the magneto parts is arranged on the side of the spoke disc u remote from the engine t, and the stationary parts of the magneto are carried by a removable cover f. The flywheel carries also the fan blades v and is arranged in the fan casing g. The permanent magnets k are secured to the flywheel by screws and wedges and are magnetically isolated therefrom by sectors p of non-magnetic material. The rim of the wheel is formed with a groove o<1> having a radial edge o<2> whereby oil &c. is trapped and thrown out centrifugally into the casing g whence it escapes at z. The cover f carries the armature core a, interrupter c, condenser d and collector e. and fits into an opening in the casing g. A groove f<3> is provided in the cover to trap moisture &c. which runs into the casing through channels s<1>. The interrupter cam q is held on the flywheel by a pin x and nut r. The condenser d and interrupter c are carried by a bowed part f<1> fixed or formed on the cover f, and the opening f2 is closed by a spring-held cap h. In order to avoid condensation on the contacts, the interrupter and, if desired, the condenser also, may be enclosed in an air-tight chamber, Fig. 3. A cover F fixed on or formed integrally with the cover f encloses the parts and also the interrupter cam q and a packed joint is provided at y between the casing F and the flywheel hub u<1> or shaft w. The interrupter and condenser may be secured to either of the covers f, F.
Patent GB-1430763-A (GB)
Title: Tyres and means for producing tyres
IPC: B29B7/00
Filed: 1972-03-24
Abstract: 1430763 Non-inflatable tyres RALEIGH INDUSTRIES Ltd 22 March 1973 [24 March 1972] 13859/72 Heading B7C [Also in Division B5]. A hollow non-inflatable tyre in the form of a one-piece moulding of resilient material comprises a tread portion 23, a pair of sidewalls 25, a wheel engaging portion 27 having two separable but interengaging parts each continuous with a respective sidewall, and, internally of the tyre at each side thereof, a single series of like integral ribs 31 which are substantially regularly spaced circumferentially of the tyre and extend inwardly of the tyre in such manner as to provide greater reinforcement to the sidewalls than to the central part of the tread portion so that, in use, the tyre will flex preferentially in the central part of the tread portion.  The ribs 31 of one series may be aligned, or staggered, with respect to those of the other series, and in each series the ratio of rib spacing to thickness may be 6. The tyre may be mounted in use on a wheel rim such as that 29 shown in Fig. 2, and the portion 27 may have shoulders 28 shaped to seat on flanges 30 of the rim. The interior surface of the tread portion 23 may have a central circumferential groove 32 to facilitate fitting of the tyre on the rim, a method of the tyre fitting being described in the Specification (see Fig. 4, not shown). The contacting surfaces 33, 34 of the two parts of the portion 27 may be of interfitting V-shape and, like the sides of the groove 32, may be coated with adhesive so as to become adhered together when the tyre has been mounted on the rim. The interior cavity of the tyre may be filled with foam plastics, e.g. through an aperture 36 in one sidewall, when the tyre has been fitted to the rim. The tyre shown in Fig. 2 may be moulded in the apparatus shown in Fig. 1 which consists of two annular halves 10, 11 which define the outer contour of the tyre, and a core 16 which by means of spaces between lugs 20 defines the ribs 31, and also defines the groove 32 by means of a projection 19, and the V-shaped surfaces 33, 34 by means of a projection 17 and recess 18, respectively.
Patent GB-1024024-A (GB)
Title: Improvements in or relating to polymerising or co-polymerising organosilicon compounds
IPC: C08G77/08
Filed: 1964-04-03
Abstract: Siloxanes of the formula <FORM:1024024/C3/1> , wherein each R is H or a monovalent hydrocarbon (saturated or unsaturated) or halohydrocarbon radical and n has an average value of from 1 to less than 3, and/or compounds of the formula HO(R)2SiQSi(R)2OH, wherein Q is a divalent hydrocarbon or ether radical of less than 15 C atoms, are polymerized or copolymerized, in an aqueous medium, while in a dispersed state, in the presence of a sulphonic acid of the formula R1C6H4SO3H, wherein R1 is a monovalent aliphatic hydrocarbon radical of at least 6 C atoms. Mixtures of catalysts are generally used, and they may be formed in situ.  The siloxanes may also be formed in situ from the corresponding alkoxy silanes or mixtures thereof.  The starting siloxanes may contain alkyl, alkenyl, aryl or halohydrocarbon radicals and Si-bonded OH, alkoxy, acyloxy or oxime radicals, and the organosilicon compounds may contain p- or m-phenylene, p-xylylene, p-xenylene, p-diphenyl ether, p-dimethylene diphenyl ether, methylene, ethylene, propylene, butylene, pentamethylene, dipropylene ether or butylene radicals.  If desired, the process may be effected by emulsification with or without additional emulsifying agents.  When polymerization is complete, the siloxane &c. may be recovered by breaking the emulsion, such as by addition of salts, e.g. NaCl, or by evaporation of water, or by addition of water-soluble alcohols.  If desired, the emulsion can be neutralized with an alkaline compound, e.g. NH4OH, NaOH, K2CO3 or LiHCO3.  Examples are given.  Uses.-The emulsions can be used as release agents; pigments and fillers, e.g. silica sol (Examples 16, 17, 19 and 20), silica or diatomaceous earth may be added to the emulsions to be used as coating compositions, such as latex paints, or polishes.ALSO:Emulsions obtained by emulsion-polymerization of organopolysiloxanes or organosilicon polymers containing siloxane and silcarbane or silylether units (see Division C3), may have fillers, suitably in colloid form, added thereto and be used as coating compositions.  In examples: (16) a colloidal silica sol was added to an aqueous emulsion of a dimethylpolysiloxane and the resulting product was suitable for coating surfaces, e.g. paper and cloth, with a tough, rubbery film (as release coating); (17, 19) a similar emulsion containing a silica sol was filmed out on Kraft paper, and dried at 300  DEG F. to yield a rubbery coating which had little or no tack, did not transfer to cellulose tape and gave good release.
Patent GB-348368-A (GB)
Title: Improvements in or relating to electrical roasting and baking ovens
IPC: F24C7/06
Filed: 1930-05-06
Abstract: 348,368. Electric cooking-ovens. MAXIM SOC. ANON. FABRIQUE D'APPAREILS THERMOELECTRIQUES, Aarau, Switzerland. May 6, 1930, No. 13925. [Class 39 (iii).] In an electric roasting and baking oven comprising an outer casing 3, a steam-tight cooking compartment 1 removably fitted therein, and removable electric resistance heating elements 5, 6 disposed in the air space 4 surrounduig the compartment 1, the elements 5, 6 are mounted in open casings disposed above and below the compartment and carried by the outer casing. On removal of compartment 1, the open casings become accessible for removal or replacement. The outer casing 3 may consist of nonconducting material or metal with a polished inner surface, and the compartment 1 may be provided with a door at each end.
Patent GB-615470-A (GB)
Title: Improvements in or relating to the joining of or joints for woodwork
IPC: E04B1/61
Filed: 1946-05-08
Abstract: 615,470. Joints for woodwork. ALENIUS, N. R. May 8, 1946, Nos. 13945 and 13946. Convention dates, May 29, 1945. Addition to 615,443. [Class 20(ii)] The invention comprised in the parent Specification is modified in that the joining piece consists of one part only, one or both sides of the groove presenting a wedge or zig - zag shaped surface to s similarly shaped sur. face or surfaces on the joining piece. The invention may be applied to the wall plates described in the parent Specification or to the modified wall plates shown in Figs. 7, 9. In this modification a grooved batten 6' forming part of the frame of wall plate 6 is joined by a joining piece 8 to the frame 9<1> of wall plate 9. Fig. 7 shows the joining piece 8 in its expanded state. A wooden board may be made of battens placed edge to edge held together by joining pieces fitting into grooves extending continuously across the battens. The joining pieces in this case may be of dove-tail shape in cross section and may be sunk wholly into the grooves.
Patent GB-356236-A (GB)
Title: Process for manufacturing briquettes and like agglomerated bodies or lamp black from coal dust
IPC: C10L5/08
Filed: 1930-05-07
Abstract: Coal or lignite fusing to a pasty condition on heating or mixtures of such coals with other material such as poor coal dust, coke cinders or slimes, are heated during agitation to a temperature between 350-500 DEG  C., or lower in the case of lignites, which is lower than that of the fusing point but sufficient to cause the individual particles to assume a spheroidal shape, each globule being of cellular structure filled with gas and surrounded by an unapertured casing.  The globules are sprayed with water whilst still hot, the resulting mixture of steam and lampblack caused by the bursting of the globules passing into a separation vessel.
Patent GB-481703-A (GB)
Title: Improvements in clocks
IPC: G04B45/04
Filed: 1937-05-19
Abstract: 481,703. Clocks. ETABLISSEMENTS E. JAEGER. May 19, 1937, No. 13996. Convention date, June 18, 1936. [Class 139] In a clock of the type comprising transparent front and rear faces 4 between which are arranged two intermediate transparent discs 15, 16 driven at their periphery from suitable chronometric mechanism in the clock base and carrying members 17, 18 indicating the minutes and hours, these members do not extend to the centre of the discs 15, 16 which carry them and the discs are supported and rotatably guided by rollers 20 pivotally mounted in the clock base. A self-starting synchronous motor drives a vertical shaft marked at its upper end 57, Fig. 2, for observation purposes and carrying a screw which meshes with a helical wheel 33 on a shaft which, in turn, drives a shaft 38 in a similar manner, a pinion 39 thereon meshing with a gear-wheel 44 frictionally secured to a shaft 41 by a spring 43 while a gear-wheel 13 fixed to the shaft 41 engages and drives the toothed rim 11, Fig. 4, surrounding the minute hand transparent disc 15, the hour hand disc 16 being driven similarly by a gear-wheel 14 after suitable speed reduction by gears 47, 48, 50. The knob 53 fixed to shaft 41 serves for setting the clock right. Suitable ring members 24, 25 screen the mechanism from outside observation.
Patent GB-528646-A (GB)
Title: Improvements in or relating to safety shutters for motion picture projectors
IPC: G03B21/18
Filed: 1939-05-11
Abstract: 528,646. Kinematograph projectors. KODAK, Ltd. May 11, 1939, No. 14050. Convention date, May 11, 1938. [Class 97 (i)] A cut-off shutter is held in operative position by connection with a weight and is moved therefrom when the shaft of the intermittent shutter has attained a predetermined speed, by connection with that shaft; the weight eliminates oscillation when the shutter moves into operative position and may be operative both during forward running and reverse running of the apparatus. The cut-off shutter 56 may comprise copper gauze, gold-plated glass, mica, slotted metal, &c. and be clipped to a ring 55 secured to a member 50 which is pivoted about the shaft 21 of an intermittent shutter 28, and carries a counterweight disc 61. The shutter 28 is held on the shaft 21 by a nut 27 having a shoulder engaged by a spring 46 enclosed by a sleeve 41 ; shoulders 59, 60 on the sleeve 41 loosely retain the member 50 between them. Weighted arms 36, 37 are pivoted in a slotted extension of the nut 27, and are formed with cams 40 which, when the speed of the shaft 21 is sufficient, move the. sleeve 41 axially so that arms 51 on the member 50 engage the shutter 28 with such friction that the member 50 is rotated. Rotation of the member 50 is restricted to that sufficient to remove the shutter 56 from a light aperture 18 by a link 85 connected to a weight comprising slotted portions 76, 78 connected by a bar 81 and passing over fixed studs 73, 74. A second link 84 connects the disc 61 with the weight, and both links pass through countersunk holes in lugs on the weight to permit freedom of movement. Rotation of the shaft 21 in the opposite direction causes the link 84 to be operative. A modification is described in which the portions 76, 78 of the weight are unconnected and move vertically.
Patent GB-1235276-A (GB)
Title: Stabilized formaldehyde polymer compositions
IPC: C08L79/00
Filed: 1969-03-18
Abstract: 1,235,276. Stabilized formaldehyde polymers- SOC. ITALIANA RESINE S.p.A. 18 March, 1969 [11 April, 1968; 14 Sept., 1968], No. 14140/69. Heading C3P. Formaldehyde polymers are stabilized by the addition of 0À05-10% by weight of the polymer of a stabilizing complex AB t  wherein A is a phenolic compound of acid character, having one of the formulµ wherein R<SP>1</SP> =C 1-5  alkyl; R<SP>2</SP> = H or C 1-5  alkyl; R<SP>3</SP> = O, S or C 1-4  aliphatic; R<SP>4</SP> = H or C 1-18  aliphatic; R<SP>5</SP> = R<SP>4</SP> or R<SP>6</SP> = C 1-4  alkylene, B<SP>7</SP> = C 1-30  aliphatic which may be substituted by 1-10 hydroxyl groups; R<SP>8</SP> = O or NH; and n is an integer, preferably from 1-4; and wherein B is a polymeric nitrogen compound of basic character, having one of the formulµ wherein x and y are integers of more than 10; m is an integer of 3 to 6; R is hydrogen or the substituent obtained by reacting (VII), wherein R is hydrogen, with acetic anhydride, cetone, aldehydes, carbo-diimides, isocyanates, epoxides, episulphides or acrylonitrile; and t is 0À1 to 2À0. The stabilizers exemplified are complexes of polyvinylpyrrolidone and 4,41-isopropylidene bisphenol, 4,4<SP>1</SP>-thiobis-(6-tert.-isobutyl-3-methyl phenol), the reaction product of 3-methyl-6-tert.-butyl phenol and crotonaldehyde, 4,4<SP>1</SP> - butylidene - bis - (6 - tert. - butyl- 3 - methyl phenol), 2,2<SP>1</SP>- methylene - bis - (4- methyl - 6 - tert. - butylphenol), 2,4<SP>1</SP> - di - tert.- amylhydroquinone, 4,4<SP>1 </SP>- thiobis - (6 - tertiary butylphenol), 2,2<SP>1</SP>- bis - (4 - hydroxyphenylpropane), 3 - methyl - 6 - tertiary isobutylphenol, and n - octadecyl - beta - (4<SP>1</SP> - hydroxy- 3<SP>1</SP>,5<SP>1</SP>-ditertiary isobutyl)phenyl propionate; and the polymers stabilized are an acetylated polyformaldehyde -and the reaction product of trioxane polymerized in the presence of ethylene oxide.
Patent GB-141418-A (GB)
IPC: B23B47/18
Abstract: 141,418. Hough, S. Jan. 11, 1919. Attachments for boring; boring-bar machines.-In a lathe, the slidable boring- bar 9 with cutter head 49 has a squared part 10 engaging a square hole in the bracket 11, and is fed forward by a rotating splitnut, the parts 13 of which are carried in a. housing 17 mounted rotatably in a forked bracket 20 and actuating the nut parts 13 by cam-slots 16. The nut may be rotated by a worm-wheel 24 and released from the screw 12 on the end of the bar 9, at the desired time to stop the feed, by an adjustable dog 46 engaging the end 45 of a spring-controlled catch 44, thus releasing a spring-pressed bar 34, the bevelled end 35 of which will engage a projection 23 on the housing 17 to rotate it, thus withdrawing the nut parts 13. A handle 22 may also be provided to operate the housing 17 when the parts are stationary.
Patent GB-182275-A (GB)
Title: Improvements in and relating to tire protectors
IPC: B60C19/12
Filed: 1921-05-20
Abstract: 182,275. Virga, J. B. May 20, 1921. Tread bands are formed in sections 15 each built up of circumferential and transverse rows of blocks 12, preferably of metal, pivotally connected together by linked staples 14 disposed in recesses 13 in the blocks. The sections are connected together by a row of blocks 16, carrying a tension spring 22 enclosed in a sliding sleeve 21. The blocks are connected to the section at one end by links 17 and screw pins 19, and at the other end by hooks 24 on the springs engaging staples on the end of the section. Side plates 25 are connected by staples to the tread and are connected by springs 27 to rings 28 which are made of zigzag shape to provide spaced attachment points for the springs and are in turn connected to rings 31 by heavier springs 30. The rings 28, 31 are made in two parts.
Patent GB-239300-A (GB)
Title: Improvements in or relating to controlling and steering means for airships
IPC: B64B1/40
Filed: 1924-06-11
Abstract: 239,300. Airship Guarantee Co., Ltd., and Wallis, B. N. June 11, 1924. Aerostats; steering and balancing.-In an airship of the kind in which four stabilizing surfaces are symmetrically disposed around the tail end of the aerostat, one or more of the surfaces are movable as a whole for controlling purposes. The movable surfaces are each mounted on a pivot adapted to turn in a bearing arranged on a special framework or on one of the usual transverse frames of the airship. In the construction shown in Figs. 1 and 2, the vertical and horizontal fins B are detachably secured to pyramidal pivots E adapted to turn in bearings mounted in the four arms of a transverse cruciform frame D, connected to the longitudinal girders and, if desired. to one of the usual transverse frames. The inner ends e of the pivots E are provided with adjustable retaining foot-step bearings, and their outer ends with bearings e', consisting of pairs of rollers e<3>, Fig. 3, which are mounted at the corners of the pivot and which work over curved corner pieces e' attached to the frame D. The pivots are rotated by cables C in which are interposed springs C' which allow the fins to give under sudden wind-gusts; safety cables C<2> are attached across the springs C<1>. The control apparatus may incorporate means whereby an increased mechanical effort is exerted as the angle through which the fins are moved increases. The above construction may be used for the elevators only, the usual construction being utilized for the vertical fins.
Patent GB-1283004-A (GB)
Title: Monitoring diffusion processes in the manufacture of semiconductor devices
Inventor: BERGER HORST HEINZ
IPC: G01R31/26
Filed: 1971-05-11
Abstract: 1283004 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 11 May 1971 [4 June 1970] 14189/71 Heading HlK In a method of monitoring the diffusion of a dopant in a wafer in which a plurality of semiconductor devices are being simultaneously manufactured the mean diffusion lengths and mean life of minority carriers are measured from two laterally formed transistors forming a test structure, these two transistors being identical except that they have different base widths. From the measured values of the current amplification factor α 1 , α 2 , of these two transistors, the mean diffusion length L is calculated from the equation L=#W/log (α 1 /α 2 ) where #W is the difference between the two transistors base widths determined from the photomask used in making the transistors. The mean life of the minority carriers # is then determined from the equation #=L<SP>2</SP>(q/ÁKT) where q is the electronic charge, Á is the known mobility of the charge carriers, K is Boltzmann's constant and T is the absolute temperature. The method is described as used in the doping of silicon with gold.
Patent GB-1365076-A (GB)
Title: Jigs
IPC: B23B47/28
Filed: 1972-08-10
Abstract: 1365076 Jigs for drilling machines T WARIN 10 Aug 1972 [11 May 1971] 14223/71 Heading B3C A jig for use in conjunction with a drilling or analogous machine, for locating a workpiece 15 relatively to a rotating drill 3 or analogous rotating tool, comprises a support 7 carrying a table 8 on which the workpiece is laid, and a fence 9 for locating the workpiece. The table is constructed and arranged so that it can be turned through 180 degrees with respect to the support 7 and repositioned to locate the fence 9 in a position parallel to its former position and spaced therefrom, i.e. the position shown in dot-dashed lines in Fig. 2. The table is guided for sliding movement on the support in a direction parallel to the workpiece locating surface of the fence, e.g. by means of grooves or ribs 13, 14. To turn the table it may be lifted from the support 7, turned and repositioned. The fence may be adjustable in a direction perpendicular to the plane of its locating surface by means of slot 11 and nut 12. A further fence 16, Fig. 3, may be provided and may be adjustable in position. For drilling holes in mitred workpieces, Fig. 9, a slotted (21) triangular member 20 may be mounted on the fence 9 and carries undercut stops 24 to locate the workpiece 25. The table for all embodiments may be vertically adjustable by screw or worm means between support 7 and the base of the machine. Alternatively, the support may be lifted from the base and shims inserted.