baber/WOPTO huggingface dataset:
Patent GB-1513357-A (GB)
Title: Apparatus for exhausting the brake pipe in an electropneumatic brake particularly for railway vehicles
IPC: B60T13/66
Filed: 1976-05-11
Abstract: 1513357 Electropneumatic brakes WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 11 May 1976 [17 July 1975] 19242/76 Heading F2F Apparatus for exhausting the brake pipe 12 of an electropneumatic rail brake comprises an exhaust valve 31 controlled by an electromagnetic valve 19 which is open when energized and which exhaust valve 31 is closed when the electromagnetic valve 19 is open, having a stop valve 26 between the exhaust valve 31 and valve 19 for automatically closing off the brake pipe 12 from exhaust when the pipe has been fully exhausted. In the preferred embodiment the main brake system comprises control reservoir 13, triple valve 10, check valve 17, air pipe 18 and brake pipe 12. As is conventional the pressure in the brake pipe 12 is maintained at a given level when the brakes are released and is reduced by exhausting to apply the brakes. The brake pipe is recharged after an application by opening electromagnetic release valve 20. In the released state electromagnetic valve 19 is open to allow air from the brake pipe into chamber 25 of the stop valve 26 and also into chamber 30 of exhaust valve 31. The air in chamber 25 retains stop valve 26 open against spring 36 to allow air into chamber 44 of exhaust valve 31 to equalize pressures across piston 40 so that spring 43 maintains exhaust valve 31 in a closed position. On receipt of a brake actuation signal electromagnetic valve 19 closes so that chambers 25 and 30 of the stop and exhaust valves are exhausted through hollow tappet 22 of valve 19. However valve 26 remains open as the working pressure still obtains in chamber 37 thereof so air from the brake pipe in chamber 44 is effective to open exhaust valve 31 against spring 43 until the brake pipe pressure has reduced to the point where the pressure in chamber 37 is no longer sufficient to resist spring 36 and valve 26 recloses.
Patent GB-213491-A (GB)
Title: Improvements relating to double acting jacquard machines for weaving
IPC: D03C3/06
Filed: 1923-07-27
Abstract: 213,491. Brown, G. N. July 27, 1923. Jacquards.-In a double-acting jacquard wherein the cards are reversed by using two catches c and e or d and f, Fig. 2, for each cylinder a or b, the means for reversing the cards are so arranged that one card is operated twice in succession by its cylinder, so as to make the cards after reversal come into action in the correct order. Thus, if one half of a symmetrical design requires 95 cards, the odd numbered cards being on one cylinder and the even numbered ones on the other, and these cylinders coming into action alternately, the correct order of the cards after reversal should be 93, 94, 95, 94, 93, thus the card 94 requires to come into action twice in succession. In the arrangement described, for reversal, the two catches of one cylinder are first put into a neutral position, the other two catches are then reversed, and finally the first two catches are put into reversed position. The first three and last three cards of the design operate two special hooks q<1>, q<2>, Fig. 6, connected by wire tugs &c. to a lever q, which is connected by adjustable linkage q<3> to a spring- controlled ratchet lever p<1> furnished with a spring-controlled pawl p<2> for turning a ratchetwheel p and cams n, o, Figs. 5 and 7. These cams operate respective tappets n<1>, o<1> on spindles s, t carrying catch-operating levers w<1>, w<2>, v<1>, v<2> connected by springs to double catches h, j for turning the cylinders a, b of the jacquard, and also, in the particular case illustrated, the double catches of a second jacquard having cylinders a<1>, b'. Instead of two double catches, four single catches controlled by four cams may be used. Devices are described for preventing a lower catch from coming into operative position before the corresponding upper catch has moved out of operative position. Devices are also described for preventing overrunning of the cams. Discs k are used to guide the tappets n', o<1>.
Patent GB-426753-A (GB)
Title: Improved production of polychrome high-gloss printed matter
IPC: B41M7/00
Filed: 1934-06-29
Abstract: A high gloss transparent coloured varnish for overprinting a picture printed in black or other colour consists of 120 parts of clear resin ester, 40 parts of chinawood oil, 40 parts of slightly boiled linseed oil, 6 parts of petroleum, 5 pairs of cobalt linoleate and colouring matter which may be oil-soluble colours or highly glazing insoluble pigments or both.  Examples of suitable colouring matter are rhodamine base dissolved in olein, Berlin blue, alizarin madder lake, milori blue, and Sudan yellow.
Patent GB-293982-A (GB)
Title: Improvements in smokers' ash trays
IPC: A24F19/00
Filed: 1927-07-20
Abstract: 293,982. Smith, J. B. July 20, 1927. Ast-trays. - In an ash receptacle into which ash &c. is admitted through one or more openings formed between parts that nearly overhang so that the contents of the receptacle are substantially concealed, the overhanging parts are of bent strip or blade form and constitute integral or fixed portions of a detachable cover. In one form, Fig. 1, the cover 2 is divided by radial slits 6, continued circumferentially at 7, into segments 8 which are bent at an angle to the horizontal. The rim 3 of the cover rests on the rim of the receptacle and is provided with depressions 4 to support cigarettes. In a modification, Fig. 5, inclined parallel strips 11 are provided. In another form, Fig. 8, a halfcylindrical depression 13 is provided with a slot 14 concealed by a V-shaped strip 15. Fig 10 shows a form having a V-shaped depression 17 slit at 18 the sides being bent to overlap one another; and Fig. 12 shows a form having a half-cylindrical depression slit to form two sides 19<a>, bent upwards to overlap a central strip 20 of arcuate or V section. The parts may be made of integral or separate metal stampings or of moulded material.
Patent GB-603712-A (GB)
Title: A new or improved method of effecting speed change in change pole a.c. motors
IPC: H02P25/20
Filed: 1944-10-09
Abstract: 603,712. Induction motors. ASEA ELECTRIC, Ltd., SINGLE, G., and BAYNES, S. Oct. 9, 1944, No. 19366. [Class 35] [Also in Group XXXVII] To change the number of field poles in a three-phase induction motor, while maintaining a magnetic field the transition from the connection shown in Fig. 1, wherein the supply terminals L1, L2, L3 are connected to the ends a 1 , b 1 , c 1 , of the star-connected windings to give the higher pole number, to that shown in Fig. 5, giving the lower pole number, is through three intermediate stages by the following steps :- (1) the terminals L2, L3 are also connected to the taps c 2 , b 2  as in Figs. 2 ; (2) the supply is disconnected from a 1 , b 1 , c 1  but remains connected to c 2 , b 2  ; (3) points a 1 , b 1 , c 1  are connected together as indicated by the circle in Fig. 5 and finally the terminal L1 is connected to tap a 2 .
Patent GB-1024581-A (GB)
Title: Loud speakers
IPC: H04R1/28
Filed: 1961-05-30
Abstract: 1,024,581. Loud-speakers. F. V. WHITEHEAD. May 29, 1962 [May 30, 1961], No. 19402/61. Heading H4J. A cone of a loud-speaker unit 3 is mounted within a hollow chamber 2 to which is connected one end of a tube 10 which exits into an open chamber 1, the exit end of the tube 1 facing a flexible membrane 6, sound waves from the back of this cone being deflected by way of this tube 10 against the membrane 6, whilst the sound waves from the front of the cone pass directly outwardly. The membrane 6 is a circular and is composed of rippled parchment paper coated on both sides with cellulose varnish or lacquer. It is held in tension and in its centre is an aperture 8 bounded by an annular rubber weight 9. Adjacent the exit end of the tube 10 is a conical sound deflector 11. A second loud-speaker unit 4 is housed at the top of the chamber and both loud-speaker units are wired together.
Patent GB-635373-A (GB)
Title: Means for measuring the speed of rotation of a shaft or other rotating member
IPC: G01P3/14
Filed: 1947-07-21
Abstract: 635,373. Speedometers. DAVIS, WYNN, & ANDREWS, Ltd., and WYNN, E. D. July 21, 1947, No. 19415. [Class 106 (iii)] Means for measuring the speed of rotation of a shaft or the like (19) comprises a member 17 adapted to be rotationally driven by the shaft and arranged to be out of balance about its axis of rotation whereby the frequency of the resulting vibration, determined by an associated vibrometer 10, is a measure of the speed of rotation. In the described embodiment the vibrometer is of the type described in Specification 613,578, a reed 14 extending from the casing 10 being adjustable for length and frequency (indicated on a dial 24) by rotating a drum 11 by means of a knurled knob 13. A ball-bearing 23 takes the thrust and reduces the effect. of friction when the head 18 is pressed against the end of the shaft 19. In a modification, the eccentrically mounted flywheel 21, Fig. 1, is replaced by a pair of flywheels 25, 26, Fig. 3. Each is made out-ofbalance by drillings 33, 33a and the two may be relatively adjustable to vary the amount of out-of-balance mass. According to the Provisional Specification, reduction gearing may be employed to increase the range of the instrument.
Patent GB-634525-A (GB)
Title: Improvements in or relating to embroidery stitching device for sewing machines
IPC: D05B19/00
Filed: 1947-07-21
Abstract: 634,525. Sewing-machines. MAN-SEW CORPORATION. July 21, 1947, No. 19457. Convention date, Feb. 4, 1941. [Class 112] Needles, vibrating laterally. The invention provides a device for use in a sewing-machine having a laterally vibrating needle, in substitution for the usual vibrating mechanism, to enable the field of vibration to be shifted according to a predetermined pattern ; provision may be made for shifting the needle laterally without its being vibrated. In application to a machine having a gear-driven transverse shaft carrying an adjustable eccentric with its pitman attached to the needle-bar gate, this mechanism is removed and replaced by a longer transverse shaft with similar gear 28 and adjustable eccentric 30; a housing 19, attached to two pivot studs carrying the presser-footlifting linkage contains a shaft 21, driven by a worm 23 on the transverse shaft, and carries an arm 35 engaging a pattern cam 42 on the shaft 21. A second arm 34, rigid with the arm 35, has pivoted to its upper end a floating lever 37 which is connected at its upper end to the pitman of the eccentric 30 and at its middle to a link 39 for vibrating the needle-bar gate ; the eccentric thus determines the extent of vibration and the cam 42, by shifting the fulcrum of the lever 37, alters the position of the field of vibration. The pattern cam is interchangeable with others giving different designs. Cords, applying: presser-feet. A surface cord or thread may be laid, to be covered by the ziz-zag stitching by a thread finger detachably pivoted to the presser-bar and actuated by a link 50 from the arm 34 to follow the pattern. Alternatively the cord or thread may be led through a hole in the presser-foot, which has behind this hole a slot to accommodate the needle in its lateral shift, so that the cord lies in a straight line and is covered by the stitching at those parts where the stitching is central and is clear of the stitching where the field of needle vibration is shifted laterally. The Specification as open to inspection under Sect. 91 describes also a modification, enabling the machine to produce a line of plain stitching in scalloped or other pattern, without vibration of the needle. In this form, the gear 28 of the machine is replaced by a gear incorporating a pattern cam, its follower arm being pivoted on a stud carried by a modified cover replacing the cover 26 and an arm rigid with the follower arm having an arcuate slot for adjustable connection of the link which shifts the needle-bar gate. This subject-matter does not appear in the Specification as accepted.
Patent GB-457053-A (GB)
Title: Improvements in reciprocating engines
IPC: F02B75/32
Filed: 1935-07-10
Abstract: 457,053. Driving - gear. LEE, G. H., Causeway House, Sawley, near Clitheroe, Lancashire, and WOROBJEFF, N., 198, Goldhurst Terrace, Kilburn, London. July 10, 1935, No. 19659. Addition to 453,288. [Class 7 (ii)] Piston movement is transmitted to concentric propellershafts 5, 8 through eccentrics 14 integral with or fixed to a sleeve 11 rotatably mounted on the crank-pin of the shaft 1. A toothed rim 15 on the sleeve 11 gears with an internally toothed ring on an extension of the shaft 8, which also has fixed to it a toothed wheel 19. Planetwheels 17 carried by the inner propeller-shaft 5 engage both the wheel 19 and an internallytoothed rim 18 on the crankshaft 1. The opposite end of the crank-shaft may have associated with it a transverse spindle 24 with bevel-gears engaged by further bevel-gears on the sleeve 11 and fixed to the casing, respectively. This gearing serves to maintain the correct relation between the pistons and crank-shaft.
Patent GB-358084-A (GB)
Title: Improved sharpener for razor blades, knives and the like
IPC: B24D15/08
Filed: 1930-06-30
Abstract: 358,084. V-slot blade sharpeners. NEWTON, H. E., 10, Barden Park Road, Tonbridge, Kent. June 30, 1930, No. 19775. (Class 60.] A sharpener for razor blades, knives, &c., consists of three or more steel balls b arranged in staggered relation and to touch one another in a wooden &c. holder a having a guide slot a<1> for the blade. In the construction shown in Fig. 7, the holder has therein three slots a<1>. The holder may be cast or moulded and the balls may be secured in position during formation of the holder; in the constructions shown, the balls are inserted in an opening in the rear face of the holder and secured by a plug or other closure.
Patent GB-434383-A (GB)
Title: Improvements relating to hammer drills
IPC: B23B51/02
Filed: 1934-07-05
Abstract: 434,383. Percussive drills. BRUSH, A. P., Greenwich, Connecticut, U.S.A. July 5, 1934, No. 19809. [Class 124] A drill bit has chisel cutting edges 37 formed on each end, the end not in use being received into a split holder. In a modification the drill is formed with portions of different diameters at each end.
Patent GB-1269498-A (GB)
Title: Fluid control valves
Inventor: WOOD DAVID CHARLES
IPC: F16K11/02
Filed: 1968-04-26
Abstract: 1,269,498. Sampling valve for gas chromatography. PERKIN-ELMER Ltd. 16 April, 1969 [26 April, 1968], No. 19831/68. Heading B1X. [Also in Division F2] A sampling valve for gas chromatography has six ports such as 10 opening into the floor of a circular groove 1C formed in the upper face of block 1B. Overlying the face is a diaphragm 4 which has spaced portions thereof pressed into the groove by three balls such as 8 subjected to a spring load 11 via balls 13 and washer 15. Balls 8 are carried by a cage 9 rotatable via screw 10A by knob 10 threaded on diaphragm clamp ring 6. The groove may alternatively be defined wholly or partly in the diaphragm. In use, balls 8 in one position are located between selected adjacent pairs of ports such that a carrier gas flows in one port and out another, whilst a sample gas flows in one port, out to a sample loop, back in from the loop and then out of another port. Upon rotation of knob 10, balls 8 are eventually repositioned to divert the carrier gas through the sample loop instead of the sample gas. In Fig. 4, six non-rotatable balls 25 are used and are depressed in two groups of three, to connect the ports as above, by face cam 28 which transmits an adjustable load from spring stack 29 and bearing 31 to balls 25 via balls 27 and tappets. A vacuum may be applied at 41 to assist unseating of the diaphragm; springs may also be used. The diaphragm can be of glass-fibre filled silicone rubber with a p.t.f.e. facing, or of nylon-reinforced nitrile rubber.
Patent GB-617920-A (GB)
Title: Improvements relating to the hydroforming of normal hexane
IPC: C10G35/04
Filed: 1946-07-05
Abstract: An olefine-free mixture of normal hexane, methylcyclopentane and benzene, such as a commercial n-hexane cut, is fractionated under a reflux ratio of at least 20:1 in a distillation column having the equivalent of at least 20 theoretical plates.  The overhead product consists essentially of the n-hexane-benzene azeotrope containing 4.3 per cent by weight of benzene, and is an advantageous feedstock for a hydroforming process.  The bottom product, when free of n-hexane, can be used as aviation fuel.  An Iranian "n-hexane" cut of boiling range 68 DEG  to 74 DEG  C. was distilled in a batch column equivalent to 100 theoretical plates (at total reflux), at a reflux ratio of 200 to 1.  Over 90 per cent of the total n-hexane was recovered, in the form of the azeotrope with benzene, completely free from methylcyclopentane. The azeotrope was passed, together with hydrogen, over an activated molybdic oxide-on-alumina catalyst at 1000 DEG  F. and under a gauge pressure of 200 lbs. per sq. inch.  The aromatic content of the product was 58 per cent by weight.ALSO:An olefine-free mixture of n-hexane, methylclopentane and benzene, such as a commercial n-hexane cut, is fractionated under a reflux ratio of at least 20 : 1 in a distillation column having the equivalent of at least 20 theoretical plates.  The overhead product consists essentially of the n-hexane-benzene azeotrope, containing 4.3 per cent by weight of benzene, and is passed to a conventional hydroforming process.  An Iranian "n-hexane" cut of boiling range 68 DEG  to 74 DEG  C. was distilled in a batch column equivalent to 100 theoretical plates (at total reflux), at a reflux ratio of 200 to 1. Over 90 per cent of the total n-hexane was recovered, in the form of the azeotrope with benzene, completely free from methylcyclopentane. The azeotrope was passed, together with hydrogen, over an activated molybdic oxide-on-alumina catalyst at 1000 DEG  F. and under a gauge pressure of 200 lbs. per sq. inch.  The aromatic content of the product was 58 per cent by weight.
Patent GB-1383388-A (GB)
Title: Laminated diffusion bonded battery plaques
IPC: H01M4/74
Filed: 1972-05-01
Abstract: 1383388 Laminated battery plaques WESTINGHOUSE ELECTRIC CORP 1 May 1972 [17 May 1971] 20148/72 Heading B3A [Also in Division H1] A laminated battery plaque 10 is formed of metal fibres at least 4 in. long and of cross-sectional dimension from ¢ to 5 mil. arranged in at least three layers. Within each layer the fibres are substantially parallel to each other end in the the two outer layers the fibre direction is parallel to the length of the plaque. The fibre direction of the inner layers is arranged such that the fibres of any two adjacent layers are oriented from 30 to 90 degrees with respect to each other. Metallurgical diffusion bonds are formed, by heating, at the points of contact between fibres of any given layer and at the cross-over points of fibres of adjacent layers. The plaque is then subjected to a coining operation to produce a main body portion of 70-97% porosity for receiving the active material and a more highly coined bus 11 and tab area 12 of 50% porosity. After the coining operation the plaque is subjected to a second diffusion bonding process. If the fibres are of iron they may be electrocoated after the diffusion bonding, with Cu, Ni, Ag or Cd. Preferably, the fibres are of nickel. The coining is performed by a platen apparatus (Fig. 3, not shown), the denser areas 11, 12 being obtained by inserting in the apparatus on the top of the several fibre layers, an additional fibre layer having the shape of those areas. The porous plaque is finally impregnated with nickel hydroxide for a positive electrode or with zinc hydroxide, cadmium hydroxide oriron hydroxide for a negative electrode.
Patent GB-1201888-A (GB)
Title: Apparatus for a continuous swaging of rod-shaped workpieces
IPC: B21J7/16
Filed: 1969-04-21
Abstract: 1,201,888. Swaging. FERTIGUNGSTECHNIK UND MASCHINENBAU G.m.b.H. GES. FUR. 21 April, 1969 [3 May, 1968], No. 20162/69. Heading B3H. A continuous swaging apparatus comprises at least two swaging units A, B which each have dies 1 moved radially by eccentric shafts 2 parallel to the workpiece axis and slidable in guides 11 rotatable about axes transverse to the workpiece axis. The dies 1 each have a forked rear part 12 which receives a plunger 13 with a threaded end 15. A nut 16 on the end 15 is rotated by linkage 18, 19 connected to a chuck 20 on an eccentric 22 on each shaft 2. The rotation of the shafts 2 causes the dies to move radially relative to the workpiece and the plungers to reciprocate to oscillate the dies. Each chuck 20 is pivoted to a ring 23 rotatable about the workpiece axis to change the range of oscillation. The swaging units are driven from a common transmission C comprising spur gears (3), (4), Fig. 4 (not shown). The eccentrics 8 on the shafts 2 of each unit are arranged to drive six dies such that alternate dies are retracting and advancing. One shaft of each set driving three dies is mounted in a rotatable housing 24, Fig. 3 (not shown), and the housing is held against rotation by an hydraulic pistoncylinder assembly (25), (26). The swaging pressure can be sensed by the assembly and an alarm signal given upon overload. Further the assemblies (25), (26) can be used to retract the dies if the unit jams. A stop (28) determines the position of the housing 24. Adjustment of the stop (28) by worms (29) changes the stroke position of one of the dies of each set so that the workpiece axis is displaced slightly upon adjustment.
Patent GB-383240-A (GB)
Title: Cord pulley for metal construction sets
IPC: F16H55/50
Filed: 1932-07-16
Abstract: 383,240. Securing pulleys on shafts. TRIX, Ltd., 4, Golden Lane, London.- (Assignees of Vereinigte Spielwaren-fabriken A. F÷rtner & J. Haffner's Nachf. Ges. ; 15, Kobergerstrasse, Nuremberg, Germany.) July 16, 1932, No. 20183. Convention date, July 23, 1931. [Classes 80 (i) and 80 (ii).] A cord-pulley for a metal construction set comprises two stamped sheet-metal discs 1, 2 having conical interior recesses 4, 4a receiving an eccentric collar 8 which is slipped over the shaft 7 and pressed against it, to fix the pulley on the shaft, by tightening bolts 9 which secure the discs together. The discs may also be used as model boiler endplates, bearing- plates, or other independent structural elements.
Patent GB-935370-A (GB)
Title: Improvements in or relating to cylinder blocks and cylinder heads
IPC: F02F1/04
Filed: 1961-06-05
Abstract: 935,370. Joint-making packing. H. MAHLE, and E. MAHLE, [trading as MAHLE KOMM.- GES.]. June 5, 1961 [June 10, 1960], No. 20193/61. Class 122 (3). [Also in Group XXVII] A cylinder head gasket comprises a spring steel ring 3 which is covered on the side to face the cylinder block with a layer 34 of copper and on the opposite side with a layer 35 of resin containing graphite or molybdenum disulphide.