baber/WOPTO huggingface dataset:
Patent GB-1495768-A (GB)
Title: Fluid pressure control device for a vehicle brake system
IPC: B60T8/26
Filed: 1975-05-02
Abstract: 1495768 Brake proportioning valves NISSHIN KOGYO KK 2 May 1975 [7 May 1974] 18565/75 Heading F2F A fluid pressure control device for fitting into a vehicle brake system comprises a casing 3 defining a cylinder bore 4 in which two differential pistons 7 1 , 7 2  are disposed in spaced relationship for axial movement in the bore. The pistons define first and second input chambers a 1 , a 2  at their respective axially inner sides and output chambers b 1 , b 2  at their respective axially outer sides, the input chambers communicating with input ports 11 1 , 11 2  connected to a master cylinder M and the output chambers communicating with output ports 12 1 , 12 2  connected to the rear brakes. The pistons 7 1 , 7 2  are biased outwardly and each has an axially inner face exposed to the respective input chamber which is smaller in area that its outer face which is exposed to the output chamber. A fluid control valve is provided between each respective input and output chamber which is open when the differential piston is in an outer position and closed when it is in an inner position whereby, in use, the valve is closed intermittently to supply a reduced fluid pressure to the output port so that a variable pressure is delivered to the brakes. The device also includes a balance piston 6 disposed between the differential pistons with one end bounding the first input chamber and the other end bounding the second input chamber, the balance piston 6 being slidable axially from a neutral position to operate a switch 21 to activate an alarm 24 when there is imbalance due to fluid leakage.
Patent GB-475826-A (GB)
Title: Improvements in and relating to ventilators
IPC: F23L17/02
Filed: 1936-07-04
Abstract: 475,826. Ventilating shaft tops. JAMIESON, T. July 4, 1936, No. 18631. [Class 25] A top for a ventilating shaft a comprises a number of portions of tube b, d, f each larger than the one below and arranged in overlapping relation to form a number of open annular spaces, a cap k spaced above the uppermost tube f and a wall m of perforated metal protecting the space between the cap and the tube. The cap may be provided with one or more depending rings n of perforated metal arranged in such a position that any rain passing through the wall m will collect on the rings and drip off through the spaces between the tubes. The tubes are supported by vanes h, i, j which form staggered ribs up the sides of the top. The cap k or the wall m may be mounted to rotate and formed with wind vanes or louvres.
Patent GB-883000-A (GB)
Title: Improvements in and relating to photographic view finders
IPC: G02B23/14
Filed: 1958-06-11
Abstract: 883,000. Albada view finders. VOIGTLANDER A.G. June 11, 1958 [June 13, 1957], No. 18694/58. Classes 97(1) and 98(1). A photographic viewfinder comprises a semi-transparent spherical concave mirror through which the field of view is observed, a reflective frame arranged in the focal plane of the mirror so as to be reflected into the field of view, an objective lens and an eyepiece lens arranged to produce an erect virtual image of the field of view, the viewfinder being of a block-form construction in which the space between the two lenses, including the mirror and the frame, is completely filled by a block of transparent material of a substantially different refractive index to that of the lenses. The Newtonian finder shown in Fig. 1 comprises a negative front lens 5 and a positive eye lens 6 joined by a transparent block 7, the lens 6 and block 7 being of a less refractive material than the lens 5. A part-transparent concave mirror 8 is provided on the cemented surface common to lens 5 and block 7, while the usual field-bounding frame 9 is on the common surface of the block 7 and lens 6. In an alternative form, Fig. 2, the front lens of the finder is made up of two parts 15, 17, the rear surface of the part 17 carrying the part-transparent mirror 19 and being cemented to the middle block 20 between which and the eye lens 24 cemented thereto is carried the field bounding frame. In a further alternative, (Fig, 3 not shown) a positive meniscus front lens carrying a parttransparent concave mirror on its rear surface and a negative eye-lens carrying the field bounding frame on its front surface are embedded in a synthetic resin mass having an index of refraction less than that of each lens. The lenses are pressed into the synthetic material while it is still in the plastic stage. Though it is preferred that all the cemented surfaces shall be formed by polished lens surfaces, some of the surfaces may only be worked roughly and an optical cement applied thereto e.g. an epoxide resin or an ethoxylin resin.
Patent GB-1419574-A (GB)
Title: Coin release apparatus with coin return arrangement for automatic  vending machines
IPC: G07F5/08
Filed: 1973-04-18
Abstract: 1419574 Coin-freed mechanism SEITZ. AUTOMATEN GmbH 18 April 1973 [21 April 1972] 18719/73 Heading G4V A coin-freed mechanism comprises a base plate 10 provided with apertures 57, coin channels 18, 19 for feeding coins to respective apertures in the base plate, a pair of coin return plungers 60, 61 pivotally mounted below the base plate and normally covering the apertures 57, and a pair of coin plungers 12, 14 pivotally mounted above the base plate for receiving coins fed by said channels and normally locked against rotation in the absence of a coin received therein. In the embodiment shown a further coin plunger 13 is mounted above plunger 12 on the same pivot 23, the plunger 12 being provided with a member 55 to entrain it for rotation with the plunger 13. In the absence of coins the plungers are locked by respective pawls 15, 16 and 17 a coin received in recess 21 in plunger 13 for example acting on initial rotation of the plunger to cam the pawl 16 away from a locking position (Figs. 5 and 6, not shown). The channels 18, 19 are for 1 DM and 2 DM coins respectively. If the sale price is 2 DM Bowden cable 37 is actuated and either its core or sheath will pivot plungers 12 and 13 or plunger 14 depending on whether two 1 DM coins or one 2 DM coin has been inserted. If the sale price is 1 DM Bowden cable 36 is actuated to pivot plunger 12 alone, and if the price is 4 DM two actuations of cable 36 provide successive pivoting of plunger 14 and plunger 12, cams 30 and 32 being provided on these plungers to prevent simultaneous pivoting thereof. To return the inserted coins the return plungers 60, 61 are pivoted to bring apertures 62, 63 therein beneath the apertures 57 in the baseplate. In another embodiment (Figs. 8 to 12, not shown) five coin plungers 12, (75) are mounted on pivot 32, each of the plungers (75) being provided with a member (76) for entraining those plungers below it. Individual Bowden cables (77) are provided for actuating the plungers 12, (75) and cable (78) for actuating plunger 14.
Patent GB-961048-A (GB)
Title: Improvements in winding support system for a dynamoelectric machine
IPC: H02K3/50
Filed: 1961-05-24
Abstract: 961,048. Securing end turns in dynamoelectric machines. GENERAL ELECTRIC CO. May 24, 1961 [June 3, 1960], No. 18725/61. Heading H2A. End turns of the stator of a dynamo-electric machine are supported by and clamped between two radially separated supports, thermo-setting pads being arranged between the turns and between the supports and the turns and one of the supports is mounted on the stator in such a manner as to accommodate axial movement due to expansion. A stator 1 having a rotor bore 3 has its end turns such as 8 arranged as shown in Fig. 1 and supported on the radially outer side by insulating members 12 secured to the stator by brackets 25. The radially inner side of the turns is supported by members 11 and the members 11 and 12 are drawn together by bolts 16 and insulating tension members 17. Pads of resin material are arranged as at 15 in grooves in the support members and these are cured after assembly. Similar pads 18, 19, 20 are also interposed between the turns. The support members 12 are each secured in a pair of brackets 25 by pins (Fig. 3, not shown) which engage in a slot in the brackets to allow the supports to move axially as expansion occurs. Additional support for the turns is provided by a ring 21 of insulating material. The end turns are connected by conductors (Fig. 3, not shown) to collecting rings such as 9a secured by clamps 10b, 1Oc 10f fastened to the stator by bracket 10a. The end members 10f of the clamps are slidable in grooves 10h to allow for expansion. Thermosetting resin pads such as 10p are arranged within the assembly and then cured. A baffle ring 32 formed from arcuate sections restricts the flow of cooling gas through the gap between the rotor and stator end turns.
Patent GB-1059601-A (GB)
Title: Dehydrogenation of hydrocarbons and catalysts therefor
IPC: C07C5/32
Filed: 1965-05-04
Abstract: A process for the dehydrogenation of a hydrocarbon feed comprising at least one hydrocarbon selected from aliphatic monoolefins having at least 4 C in their unsaturated chains, alkylated aromatic hydrocarbons having at least 2 C in their alkyl groups, cycloaliphatic olefins having 5 to 8 C in their olefinically unsaturated ring and cycloalkanes having 5 to 7 C, is effected at 500 DEG  to 750 DEG  C. in the presence of steam and a dehydrogenation catalyst made by precipitating calcium nickel phosphate from an aqueous solution containing Ca++, Ni++ and PO4111,there being from 6.0 to 12.0 Ca++ per Ni,++ and separating and drying the precipitate such that 0.5 to 10% of chromium phosphate is incorporated therein. Reference is made to the dehydrogenation of butenes-1 and/or -2 to butadiene, isoamylene to isoprene, and ethyl benzene to styrene. Examples describe the dehydrogenation of butene to butadiene.ALSO:Calcium nickel phosphate is precipated from an aqueous solution containing Ca\sW\sW, Ni\sW\sW, and Po4\yG, there being from 6.0 to 12.0 Ca\sW\sW per Mi\sW\sW, the precipitate is separated, dried and from 0.5 to 10% of chromium phosphate is incorporated therein.  Precipitation may be effected in aqueous NH3.  The catalyst may additionally contain Cr2O3.  Regeneration may be effected by heating in air and steam mixtures.
Patent GB-1428965-A (GB)
Title: Locking devices
IPC: B60R25/22
Filed: 1972-04-22
Abstract: 1428965 Rotating barrel locks WILMOTBREEDEN Ltd 16 April 1973 [22 April 1972] 18777/72 Heading E2A A barrel for a rotating barrel lock has a key receiving slot and two separate banks of tumblers A4, B4 respectively positioned at opposite sides of the slot, the tumblers being operable independently of each other by a key the key engaging surfaces of the tumblers being adjacent to opposite edges of the slot. As shown the tumblers of one bank are paired with the tumblers in the other bank and are spring loaded outwardly of the barrel, the springs of each bank being held in the barrel by a respective bar 23. Each tumbler has a shoulder 12 projecting into the key receiving slot whereby the tumbler can be urged to their withdrawn position by a key. The barrel is provided with a further spring loaded tumbler by which the barrel may be held within a lock casing (Figs. 1, 3, not shown). The barrel is formed with a pair of axially extending stubs for providing a coupling of the barrel to a device such as a steering column or ignition switch mechanism. Key guides 20 are provided in the slot. The projecting edges of the tumblers may be cut back to prevent lock picking by "jiggling". The key for operating a lock having the above described barrel has profiles along both its edges, the key being insertable in the slot in two positions of the key. The key projects into the barrel further in one position than in the other end to this end the barrel is provided with axially spaced faces (Fig. 8, not shown) each for co-operation with a different one of a pair of shoulders 17, 18 of the key in one position thereof and one of the faces co-operating with one of the shoulders in the other position of the key. The faces are spaced by half the tumbler separation and the cuts of the keys, which on each edge are equal to the total number of tumblers, one, on each edge, taken in pairs the same as the other edge but reversed. Reference has been directed by the comptroller to Specification 1282969.
Patent GB-298677-A (GB)
Title: Improvements relating to electric signalling systems
IPC: H04Q3/42
Filed: 1927-07-15
Abstract: 298,677. Siemens Bros. & Co., Ltd., Christian, D. A.., and Long, D. P. July 15, 1927. Order and order-type apparatus.-A storage relay set in which the relays operate and lock up in combinations is controlled by an intermediate set of relays only over front contacts of the latter, in order to eliminate the possibility of the locking up of a wrong combination due to faulty timing of relay contacts when back contacts are also used. Fig. 1 shows an intermediate relay set comprising six polarized relays CA-CF connected in pairs in star to the wires a, b, c to which battery and earth are connected by relays A-F controlled by the keyboard KS. The polarizing windings of the relays CA-CF are closed over the wire d by relay ST on operation of the start key SK. The front contacts of the relays CA-CF connect earth to wires a<1> - - d<1> to operate the storage relay set SA-SD, in which the relays lock and mark one of ten outgoing wires according to the setting- of the keyboard. In a modification of this arrangement, five polarized relays only are employed, Fig. 3 shows an arrangement in which the polarized relays CA-CF are connected in mesh to the wires a, b, c. Specification 292',331, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-1083502-A (GB)
Title: Stabilisation process
Inventor: ASHTON STANLEY
IPC: C08K5/18
Filed: 1964-05-06
Abstract: Polymers are stabilized by adding thereto at least one stabilizer having either of formulae <FORM:1083502/C3/1> <FORM:1083502/C3/2> where R3 and R4 are hydrogen or alkyl, at least one being tertiary alkyl, R1 and R2 are hydrogen, alkyl, aralkyl or acyl, or R1 is either of <FORM:1083502/C3/3> <FORM:1083502/C3/4> where A is a divalent radical.  A may be alkylene; R1 and R2 may be up to C24 alkyl or C9- 18 aliphatic or aromatic acyl and R3 and R4 may be up to C18 tert.-alkyl.  0.01-2% stabilizer may be added to the polymerization melt or to the finished polymer.  Specified polymers are polyamides, such as polyhexamethylene adipamide and polycaprolactam, and polyolefins, such as polyethylene and polypropylene. In Examples 1-6 polyhexamethylene adipamide is stabilized with (1) 2-(N-sec.-butylamino)-4-t.-butyl phenol, (2) 4-amino-2,6-di-t.-butyl phenol, (3) 2-N-sec.-butyl-amino-4,6-di-t.-butyl phenol, (4) 4-N-isopropylamino-4,6-di-t. - butyl phenol, (5) 4 - N - stearoylamino - 3 - methyl - 6 - t. - butyl phenol and (6) bis - N,N1 (21 - hydroxy - 51 - t. - butylphenyl) ethylene-diamine. The stabilizer and polymer both in formic acid solution are mixed and the solvent evaporated.  In Example 8 polypropylene is stabilized with 4 - N - stearoylamino - 2,6 - di - t,-butyl phenol, 4-N-stearoylamino-3-methyl-6-t.-butyl phenol, 2-N-stearoylamino-4-t.-butyl-and -4-t.-octyl phenols, with and without dilauryl thiodipropionate; and in Example 9 polyhexamethylene adipamide is prepared from hexamethylenediamine adipate in the presence of 4 - t. - octyl - 2 - stearoylamino phenol, water and acetic acid.
Patent GB-1464498-A (GB)
Title: Filled thermoplastic
IPC: C08K3/00
Filed: 1975-05-06
Abstract: 1464498 Filled polystyrene compositions POLYSAR Ltd 6 May 1975 [7 May 1974] 18863/75 Heading C3G and C3P Filled mouldable polystyrene compositions comprise (1) polystyrene and (2) a master batch comprising by weight (a) 100 parts of impact resistant polystyrene, (b) 1 to 40 parts of a diene polymer rubber, (c) 10 to 200 parts filler selected from calcium carbonate, magnesium carbonate, calcium sulphate, clay, aluminium silicate, silica, talc, mica, vermiculite, asbestos, glass fibres, particulate starch, sawdust, wood flour and/or glass beads of diameter 10 to 60 microns and (d) 1 to 40 parts of mixed naphthenic/aromatic or highly aromatic oil, such that the final composition contains 5 to 50 weight per cent of filler. Examples describe the preparation of moulding compositions by blending polystyrene with master batches comprising impact polystyrenes prepared by polymerizing styrene in the presence of cis-1,4-polybutadienes, mixed naphthenic/paraffinic mineral oils and (1) wood flour and styrene/butadiene rubber, (2) corn starch, calcium carbonate and styrene/ butadiene rubber, (3) calcium carbonate -and styrene/butadiene, polybutadiene or ethylene/ propylene/ethylidene norbornene rubber, (4 and 6) calcium carbonate and styrene/butadiene rubber and (5) wood flour or calcium carbonate and glass beads, or asbestos together with styrene/butadiene rubber.
Patent GB-1356402-A (GB)
Title: Colour developer sheets for pressuresensitive recording
IPC: B41M5/155
Filed: 1971-06-03
Abstract: 1356402 Colour developer sheets FUJI PHOTO FILM CO Ltd 3 June 1971 [5 June 1970] 18883/71 Heading D2B A colour developer sheet comprises a support having coated on one face thereof at least one monomeric phenolic compound together with one or more clays capable of acting as colour developers. Specified phenolic compounds include p-cresol, p-phenylphenol, (p-bromophenyl) phenols, biphenols, 2, 4-xylenol, 2, 4-diphenyl phenol, 2-chloro-4-phenyl phenol, 2, 3, 5-trimethyl phenol, tetramethyl phenols, 4-phenylpyrocatechol, 4, 4'-bi-o-cresol, α, α'-diphenyl-4, 4'-bi-o-cresol, biphenyl tetrols, 2, 4'-methylene diphenol, methylene diresoroinols, 2, 2'-methylene di-p-cresol, methylene bis (benzyl phenols), p, p'-isopropylidenediphenol, methylene his (phenyl phenols), methylene-bis(halophenols) and 4, 4'-thiodiphenol. Microcapsules containing a colour former may be included on the same face, or applied to the opposite face or a separate sheet.
Patent GB-189153-A (GB)
Abstract: 189,153. Brandt, E. J. May 18, 1921. Money-delivering apparatus.-In a machine for delivering money. of the type in which coins are ejected from a number of coin receptacles 13 by key actuated mechanism, the required combination of coin ejector operating members 14 is selected and actuated by mechanism comprising selector bars 46 secured to the lower ends of key stems 47, and combination bars 39, each connected to a particular coin ejector 14 and provided with spaced fingers 44 arranged in the downward path of movement of the required bar or bars 46. The fingers 44 are detachably mounted on the bars 39 and are spaced in the deshed positions by spacing members 45, while the bars 39 are each connected by links 40, 43 to a crank 35 formed on the and of a rock-shaft 34 which operates the coin ejector mechanism through a connecting arm 36. The coin ejector mechanism comprises the ejector 14 pivoted to a slidable carrier 18 surrounded by a spring 20 which normally tends to retain the ejector in its withdrawn position, the carrier 18 being operated by the connecting arm 36 through a link 37. Each coin receptacle 13 is provided at its lower end with a discharge notch 58 and a leaf-spring 61, having its upper end attached rigidly to one side wall 56, and provided at its lower end with a projecting tooth 64 which engages a locking-bolt 66 adapted to be moved into the path of the ejector 14. The locking-bolt is normally restrained from movement into operative position by the spring 61 which is held retracted by the coins in the receptacle, but when only a predetermined number of coins remain in the coin receptacle the spring is freed to project the bolt into the path of the ejector. If it is desired to clear the coin receptacle of these remaining coins the spring 61 may be retracted by a contact pin 71 engaging therewith and operated by a slide 69 to which it is attached.
Patent GB-1008271-A (GB)
Title: Process for the manufacture of 19-nor-steroids
IPC: C07J7/00
Filed: 1963-05-13
Abstract: The invention comprises (1) a process for preparing D 4-3-oxo-10b -acyloxy-19-nor-steroids by treating D 4-3-oxo-19-hydroxy-steroids with an acylate of tetravelent lead; and (2) D 4,6-3-oxo - 10b  - acyloxy - 19 - nor - androstadienes and -pregnadienes.  In the products of process (1) an oxo group, particularly a 17-oxo group, can be reduced to an hydroxyl group or reacted with a Grignard reagent or hydrocarbon metal compound to give, for example, a 17b -hydroxy-17a -hydrocarbon compound; and a D 1-double bond may also be introduced.  Starting materials for process (1) may be of the androstane, pregnane, cholestane, spirostane or carcanolide series and may contain as further substituents alkyl, alkenyl or alkynyl or the corresponding halogenated groups, halogen atoms, esterified or etherified hydroxyl groups and free, ketalized or enolized oxo groups, in the steroid nucleus or 17-side chain, and they may also contain one or more additional double bonds, e.g. D 6.  Examples are given, and the conversion of D 4 - 3 - oxo - 10b  - acetoxy - 17b  - hydroxy-19-nor -androstene into the 10,17-diacetate is also described.  Specifications 1,007,756, 1,008,272, 1,008,273 and 1,008,274 are referred to.
Patent GB-831296-A (GB)
Title: Annular brush element
Inventor: NELSON BROOKS EDWARD
IPC: A46B13/00
Filed: 1957-06-17
Abstract: 831,296. Brushes. OSBORN MANUFACTURING CO. June 17,1957, No. 19021/57. Class 19. A circular brush unit having bristles radial or inclined to its axis comprises one or more annular brush members 5, 6 (e.g. a brush strip as described in Specification 645,407 bent backwards into a ring) mounted on a sheet metal or synthetic resin annulus 1 having radially outwardly extending end portions embracing the brush member sides, the outer edges of these end portions being provided with teeth 4, 16 which project into the brush material. The annulus 1 may be formed by punching circular notches 2, Fig. 1, in opposite pairs (or staggered as at 14, Fig. 4) in the edges of steel, copper, brass, aluminium or thermosetting plastics ribbon, turning up the points 4, 16, bending a length of the ribbon into a ring and welding its ends together as at 11, Fig. 1 ; for small diameter brushes this ring may be formed from tubing. After mounting the brush members 5, 6 the ring edges are flared and pressed so that the teeth 4, 16 engage the edges 12 of the channel back 5 ; where two or more brush members 5, 6 are mounted on a single annulus 1, Fig. 6, they may be separated by flat metal annuli 17 with retaining teeth 18 on both sides (as described in Specification 698,727) functioning similarly to the teeth 4, 16. If the ends 9, 10 of the brush member are diametrically opposite the joint in the annulus 1, welding at 11 may be omitted. Several turns of brush strip may be helically arranged on a single wide annulus.
Patent GB-147058-A (GB)
Title: Improvements in or relating to circular knitting frames
IPC: D04B13/02
Filed: 1920-07-06
Abstract: 147,058. Kaaga, E. June 12, 1918, [Convention date]. Circular machines.-The sinker wheel 25 is driven from the rotary needle bed 11 as usual, but can be readily detached from the bevel driving wheel 7 for inspection of the fabric, or in theevent of anything going wrong can be quickly withdrawn out of reach of the needles 39 by loosening a screw 30 and sliding the wheel along the driving-shaft 8 on a feather 33. The screw 30 also serves to adjust the position of the sinkers relative to the needles. The wheel 25 is connected to the driver 7 by means of a crank pin 22, the end of which fits in a hole 21 in a disk 16, and can be withdrawn therefrom when the screw 30 is. loosened. In a modified form, the disk 16 carries the crank-pin and a crank-arm on the wheel 25 carries an adjustable set-pin, which is held against the crank-pin by a spring. The disk 16. is connected by pin-and-slot connexions to a wheel 14, on the hub of which the driver 7 is mounted. The relative positions of the disk 16 and wheel 14 are adjustable by means of a bolt 19, the conical end 35 of which fits in a similar recess in the wheel 14, while the stem 19 is held against the end of an arcuate slot in the wheel 16 by means of a spring. Should the sinkers encounter resistance in the loop-sinking operation, the spring yields to allow the sinker wheel to take up a new position.