baber/WOPTO huggingface dataset:
Patent GB-147505-A (GB)
Title: Improvements in moulding presses for plastic materials
IPC: B29C43/02
Filed: 1920-07-08
Abstract: 147,505. Columbia Graphophone Manufacturing Co., (Assignees of Burroughs, C. F.). Feb. 7, 1918, [Convention date]. Stationary - mould machines; heating and cooling moulds; pressing plungers and dies; moulding phonograph records.-A press for moulding disks &c. from plastic material comprises a fixed base a<3> supporting the lower matrix a' through members a<2>, a, and formed with a piston extension d on which slides a cylinder d<1> formed with a cross-piece d<2> provided with studs h on which are journaled arms g carrying the press head B supporting the upper matrix b<1>. In the open position, the cylinder d' is supported by a small hydraulic piston l under constant pressure through a pipe l<2>, and the head B can be swung aside to an extent limited by a crossbar g<1> by admitting pressure to a cylinder m furnished with a piston connected to a carriage n<1> coupled to the arms g by links p<1>. The head B may also be turned by gearing G, H', J to bring the upper matrix into an accessible position for cleaning &c., the head being locked in its operative position by a spring stud J<1> on the crank arm J. Upon opening the cylinder m to exhaust, constant pressure through a pipe m<4> returns the carriage n<1> and brings the arms g into a vertical position against stops i. Pressure is then admitted to the cylinder d<1> through a valve k<1> and pipe k to depress the head Band mould the article, registration of the matrices being ensured by pins e on the bend entering sockets on the member a. Should the valve k<1> be inadvertently opened, a stream of water is directed towards the. operator through a pipe z<5> supplied through a pipe k<3> and valve z<4> which is normally held open by a weighted lever o<5> but is closed by a stop o<3> on the carriage n<1> engaging a lever o<4>. The matrices are heated and cooled by steam and water supplied through duplex valves controlled by the movement of the arms g, steam being supplied whilst the press is open and water being supplied as the press is closed. The valves are controlled by a lever I, connected to a link s having a slotted portion embracing a pin s<1> on one arm g, and furnished with a portion z' connected to a dash-pot device t<1>. When the press is open the device t' is held up by a latch w<1> which is tripped, to cut off the steam and open the water supply, by a member w<2> engaging a lever x. The moulded article is detached from the upper matrix by a member z, carried by a rod z<1> which is depressed by a lever z<3>, rod z<4>, and catch z<5> engaging beneath the member a as the head B rises; and is ejected from the lower matrix by a member y carried by a member y<2> which is raised by the cylinder d<1> through rods y<4> and a yoke y<3>. The ejector y is provided with a spring-pressed spindle w<5> to form a central perforation in the article. The matrices are detachably secured to mould-blocks c, c' by clamps c' secured by screws e<2>.
Patent GB-733533-A (GB)
Title: Improvements in or relating to centrifugal blowers, compressors, pumps and the like
IPC: F04D29/44
Filed: 1953-07-14
Abstract: 733,533. Centrifugal pumps &c. SOC. ANON. DES ETABLISSEMENTS NEU. July 14, 1953 [Aug. 26, 1952], No. 19548/53. Class 110(1). In a centrifugal blower, compressor or pump, the impeller blades 2, Figs. 1 and 2, are enclosed between discs 3, 4 extending beyond the blades to form a rotary diffuser 5, and the impeller is contained in a volute 6, the sides 7, 8 of which are spaced from the discs by between one and two times the outlet width of the diffuser. Vortices are induced in the lateral spaces 11, 12 by friction and are stated to increase the pressure at low outputs. In addition, the pressure at the clearances 13, 14 is reduced, obviating the need for labyrinth packings. To reduce pumping action, the usual cut-off 18 is replaced by a curved portion 17, with a radius of the order of about <SP>1</SP>/ 10 of the radius of the impeller or the rotary diffuser. Instead of being rectangular, the cross-section of the volute may be circular or trapezoidal. The impeller blades, which may be of aerofoil or of laminar form, may each comprise an intake portion 42, Fig. 6, of cylindrical form with its axis disposed in the radial direction, merging tangentially at 44 into a flat portion 40. The impeller may be of the double-intake type, with either a single diffuser or a separate diffuser for each intake.
Patent GB-1183822-A (GB)
Title: Improvements in Vibratory Finishing Machines.
Inventor: STROM JOHN RUTLEDGE
IPC: B24B31/073
Filed: 1966-05-04
Abstract: 1,183,822. Vibratory finishing. SWECO Inc. 25 April, 1967 [4 May, 1966], No. 19653/66. Heading B3D. A vibratory finishing mill comprises: (i) a base; (ii) a container for receiving media and parts to be finished, said container forming a channel; (iii) means for resiliently mounting said container on said base; (iv) vibratory means for imparting relatively high frequency vibrations to said container; and (v) a weir located in said container and forming a wall therein, the weir having a height less than the depth of said channel, extending completely across the width of said channel and being vertically disposed within said channel. The following alternatives are mentioned: (a) the weir may be a permanent, internally mounted fabrication; (b) the weir may be of a composite design with a movable or retractable component held within an internally mounted fabrication which extends permanently for some distance into the finishing vessel; (c) the entire weir may be removed and inserted from the top of the opening finishing vessel; (d) the weir may be introduced through a slot in either side of the finishing vessel; (e) the weir may be introduced from the bottom of the bowl and be partially or fully retractable; it may be hinged and retained within the finishing vessel and elevated by manual, air or mechanical means to operating position; the finishing vessel may be slotted in the bottom and the weir operated by air, mechanical or manual means to attain proper position. A tub 12, Fig. 1, supported by springs 11 on a base 10 is vibrated by an electric motor 13 having dissimilar eccentric weights 14, 15 on the ends of its shaft. The tub contains deburring media 16 and workpieces. A weir 17 is placed across one end of the tub, the contents flowing thereover into the discharge section 19 and being recycled to the other end. If the workpieces are completely finished in a single pass through the tub, a screen separator or magnetic drum may be used to separate the workpieces from the media, only the latter being recycled. Alternatively the weir may be inserted only after the finishing vibration has been applied for a required time. An annular tub 20, Fig. 3, having a centre post 21 is supported by springs 25 on a base frame 26 and is vibrated by a unit 22 with eccentric weights 23, 24. A weir 27 is provided; as the contents process round the tub they flow over the weir, where finished workpieces may be separated from media. In a modification, Fig. 4, the tub 30 has a wide diameter centre post 31 housing the top portion of the vibrator unit 32; a weir 33 is provided. A finishing chamber 50, Fig. 6, is in the form of an ascending helix mounted round a central column 51. Workpieces and media fed to the portion 52 precess up the helix and flow over the weir 53. A screen member may be mounted horizontally for co-operation with the weir.
Patent GB-516646-A (GB)
Title: Improvements relating to the aligning or orientation of filaments or strands
IPC: D04H3/02
Filed: 1938-07-04
Abstract: 516,646. Making glass fibres. FLEISHER, W. L. July 4, 1938, No. 19717. Convention date, July 3, 1937. [Class 56] [Also in Group IX] Glass filaments are aligned by a lattice device 12 formed of cross-members 14a, 14b and having depending pins 16. The device is lowered into the filament mass' and then elongated. The aligned filaments may pass through an anealing chamber 13. .Specification 477,478, [Group XII], is referred to.
Patent GB-849410-A (GB)
Title: Salts of bis-dithiocarbamic acids
IPC: C07C333/16
Filed: 1959-06-09
Abstract: The invention comprises metal¦salts of:  <FORM:0849410/IV(b)/1> wherein R is a saturated or unsaturated aliphatic hydrocarbon residue or an optionally chlorinated aromatic hydrocarbon residue, x is 2 or 3 and y is 0, 1, 2 or 3.  The compounds are prepared by reacting one mole of a dicarboxylic acid: HOOC,R,COOH, or an anhydride, monoalcohol ester or halide thereof, with at least two moles of a polyamine of the formula: H2N(CH2)x-[NH(CH2)x]y-NH2 treating the resulting diamide: H2N - [(CH2)xNH]y-NHCO,R,CONH-(CH2) x-[NH(CH2)x]y-NH2, preferably after dilution with water, with carbon disulphide and an aqueous alkali, and converting the alkali salts formed into other metal salts. Preferred salts are those of Na, Zn, Cu, Fe or Mn.  Specified dicarboxylic reactants are oxalic, glutaric, succinic, adipic, pimelic, sebacic, fumaric, maleic, phthalic and tetrachlorophthalic acids.ALSO:A fungicidal composition comprises a metal salt of a bis-dithiocarbamate of the formula: <FORM:0849410/VI/1> wherein R is a saturated or unsaturated aliphatic hydrocarbon radical or an optionally chlorinated aromatic hydrocarbon radical, together with a carrier, wetting agent, emulsifying agent, solvent, other fungicide and/or insecticide.  Specified salt-forming metals are Na, Zn, Cu, Fe or Mn.  Carriers specified are cell-pitch powder, kaolin and chalk powder.  Further fungicides specified are metal salts of ethylene-bis-dithiocarbamic acid and the trichloromethylsulphenyl derivative of tetrahydrophthalimide (Captan).  Insecticides specified are 2-benzene hexachloride and 1:1:1-trichloro-2:2-bis-(para-chlorophenyl) ethane.
Patent GB-748269-A (GB)
Title: Catalytic conversion of methyl substituted phenols
Filed: 1952-08-06
Abstract: Methyl homologues of phenol having no more than three methyl substituents are converted into phenol and other methyl homologues of phenol by contacting the former in the vapour phase at a temperature of 450-700 DEG  F. with a silica-alumina catalyst having carbon deposited initially thereon in an amount equal to at least 5 per cent of the weight of said catalyst, and collecting the product vapours. The methylphenyl vapour is preferably diluted with an inert gas (e.g. nitrogen, carbon monoxide, carbon dioxide, steam or flue gas) prior to contacting with the catalyst.  The carbon support preferably comprises 1-50 weight per cent alumina and 99-50 weight per cent silica (more particularly 1-20 and 99-80 weight per cent respectively) and may contain up to 10 per cent by weight of magnesia, boria or zirconia.  The carbon coating is deposited by passing vaporized hydrocarbonaceous material through the catalyst at an elevated temperature, and the catalyst is preferably regenerated by burning off the carbon and repeating the coating procedure.  The starting materials preferably consist of cresols, xylenols or a mixture thereof. Thus (1) ortho-, meta- or para-cresols are converted into phenol and a mixture of isomerized cresols, e.g. ortho-cresol yields phenol and a mixture of meta- and para-cresol; (2) 2 : 4-, 2 : 5-, 2 : 6- or 3 : 4-xylenols are converted into a mixture of phenol, trimethyl phenols, cresols and isomeric xylenols including 2 : 3- and 3 : 5-xylenol; (3) a mixture of one volume of cresols with one-half to two volumes of xylenols are converted (using a catalyst with a 10 per cent carbon coating) into a mixture of phenol, isomeric cresols and isomeric xylenols, e.g. an equal mixture of 2 : 4-xylenol and ortho-cresol yields phenol, trimethyl phenols, meta- and para-cresol, 2 : 3-, 2 : 5-, 2 : 6-, 3 : 4- and 3 : 5-xylenol; (4) trimethyl phenols are converted at temperatures around 500 DEG  F. into a mixture of phenol, cresols and xylenols.
Patent GB-801250-A (GB)
Title: Improvements in fire alarms
IPC: G08B17/04
Filed: 1957-06-24
Abstract: 801,250. Automatic fire alarms. BAER, A. R. June 24,1957, No. 19809/57. Class 118 (1), An automatic fire alarm comprises a container 10 for compressed gas, an inner cover 11 provided with a part annular depression 20 and having a hole 15 communicating with the inside of the container, and an outer cover 12 provided with whistle slots 14 and an annular raised portion 21. The outer cover 12 is fastened down over and co-operates with the inner cover 11 to define a sound chamber formed by the depression 20 and the raised part 21, and the hole 15 is normally stopped by a metal filling 17 which fuses at alarm temperature. In operation the melting of the metal at alarm temperature releases the gas which is directed by raised parts 16 on the cover 11 and by the contour of the cover 12 to the whistles 14. A pea 22 or the like is provided. In further embodiments only one whistle is provided, the sound chamber may be of cylindrical or other shape, and a reflector plate is provided to co-operate with the whistle.
Patent GB-1303582-A (GB)
IPC: F23Q2/36
Filed: 1971-06-10
Abstract: 1303582 Mobile jib cranes RHEINSTAHL AG 10 June 1971 [19 June 1970] 19920/71 Heading B8B A mobile jib crane 1 comprises an undercarriage 2 with pairs of endless tracks 3, 13 arranged on both sides and a telescopic jib 5 mounted for luffing on an upper carriage 4. The crane 1 is shown mounted for transport on bogies 9, 10 by pairs of cantilever arms 6, 7 detachably mounted at each end of the undercarriage 2 by pins 8. The bogies 9, 10 may be steerably connected together and the apparatus towed by a tractor through a tow-bar 16. The crane 1 may be lifted into the transport position by built-in hydraulic supports 17 (which may also serve as outriggers). Figs. 2 to 5 (not shown) illustrate various types of cantilever arms and their mountings, including folding and telescopic constructions.
Patent GB-390037-A (GB)
Title: An improvement in photographic emulsions
IPC: G03C1/28
Filed: 1932-07-14
Abstract: 390,037. Photographic emulsions. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. July 14, 1932, No. 19959. Convention date, July 24, 1931. [Class 98 (ii).] Silver halide gelatin emulsions optically sensitized or hyper-sensitized in known manner are stabilized by adding to the emulsion before it is poured on the support an organic compound forming a silver salt, the solubility of which in water at 18‹ C. does not surpass that of silver chloride. The organic compounds may be an iminazole, a tetrazole, a mercaptopenthiophen, a thioglycollic acid or a mercaptotriazole. In the particular examples ethylthiotriazole and 6-nitrobenziminazole are employed. Specifications 271,475 and 305,143, [both in Class 98 (ii), Photographic processes &c.], are referred to.
Patent GB-459548-A (GB)
Title: Improvements in apparatus for thinning turnip, mangold, beet, and other crops
IPC: A01B41/04
Filed: 1935-07-13
Abstract: 459,548. Machines for working land. KENT, H. C., Gurthalougha, Ballinderry, Borrisokane, Tipperary, Irish Free State. July 13, 1935, No. 20059. [Class 6 (i)] A gapping-machine for thinning crops comprises a wheeled frame carrying two rotary bladed gapping devices of disc-like form mounted for rotation on the same longitudinal axis and relatively adjustable angularly and axially, the blades being adapted to enter the drill substantially edgewise in a plane transverse to the path of the machine. The main frame 1 is provided with a draw-bar 2, upturned guiding handles 3, and travelling wheels 4. A pivoted auxiliary frame 5 carrying drillcleaning discs 6 has an upturned front extension bar 8 adjustably connected by a spring 9 and chain 10 to a hook 11 on one of the handles 3. The axle 12 drives, through bevel gearing 14, a longitudinal shaft 15 on which the gapping- devices 18, 19 are adjustably secured by bosses 18a, 19a and studs 20. The gappers may consist of dished disc-shaped elements, the front one of which comprises two diametrically opposed quadrantal blades 18b separated by gaps 18c, while the larger rear one comprises two similar blades 19b with gaps 19c. The spacing and size of the plant bunches left may be varied by changing the gearing or adjusting the gappers 18, 19 angularly or axially. Chains 29 may be trailed behind the gappers to prevent the plants from being buried. The edges of the gappers may be serrated, and a sheet metal guard may be provided at one side. The rear disc may be reversed or replaced by a flat disc. By raising the handles 3 the gappers may be lifted while the cleaning discs 6 remain on the ground. When the auxiliary frame 5 engages an adjustable stop 21 the discs 6 are also raised. The Y-shaped draw-bar 2 is hinged on a centrally pivoted cross-bar 23 which may be turned about its pivot by means of a steering lever 25. A pin engaging one of a series of holes in a cross-bar 27 may be employed to lock the lever 25 in position. In a modification the bar 23 is turned about its pivot by a pair of handles on a cross-bar pivoted on an extension of the main frame and connected to the bar 23 by two levers having a pin-and-slot connection. To facilitate turning at the headlands means are provided for locking the handles in position. Two or more sets of gappers may be provided, and the plane of the cutters may be oblique to the path of the machine. Specification 440,372 is referred to.
Patent GB-275612-A (GB)
Title: Improvements in or relating to control mechanism for the slide rests or tool holdersof lathes and other machine tools
IPC: B23B5/28
Filed: 1927-07-28
Abstract: 275,612. Freund, O. Aug. 7, 1926, [Convention date]. Lathes.-In a lathe or other machine tool of the kind having one or more tool-holding sliderests each provided with rapid and slow feeds, each slide rest carries means in the form of a resilient work-engaging stop, whereby the rapid feed is automatically disengaged before the tool can come into contact with the work. A wheel lathe may be provided with slide rests 1 - - 4, the rests 1, 2 carrying roughing tools and the rests 3, 4 finishing tools. The rapid feed of the former pair of rests is derived from an electromotor 5 through gearing 6, and of the latter pair from an electromotor 7 through gearing 8. The withdrawal movements of the rests to allow the insertion of the work 9 are limited by the engagement of stops 10 - - 13 with respective abutments 14 - - 17, this engagement serving to cut off the current supply to the electromotors. On the forward movement of the rests, adjustable resilient stops 18 - - 21 engage the work to cut off the motor current and stop the rapid feed at any desired distance of the tools from the work. Instead of cutting off the motor supply current, the engagement of the stops with the work may cause the disengagement of a clutch connecting the motors to the feed mechanism.
Patent GB-1259756-A (GB)
Title: Polyurethanes
Inventor: FERTIG JOSEPH
IPC: C08G18/22
Filed: 1970-04-27
Abstract: 1,259,756. Polyurethanes. MERCK & CO. Inc. 27 April, 1970 [5 May, 1969], No. 20126/70. Heading C3R. Polyurethanes are prepared by reacting at an elevated temperature an organic polyisocyanate with an organic polyol in the presence of a catalytic amount of an organomercuric catalyst of the formula wherein n is 2, 3 or 4; X is an anion and R is a radical having a valency of n and derived from an aralkane, arene, alkarene, heterocyclic compound or straight, branched or cyclic alkane or a halo, amido, C 1-5  alkoxy, carboxy, or nitro-substituted derivative thereof; and each mercury atom is bound directly to a carbon atom of the radical R. The catalyst may be used in admixture with an ambient, temperature co-catalyst, in which case it is not necessary to provide mechanical heat to effect the reaction. The co-catalyst may be a monomercurated salt of the formula RHgX or catalysts conventionally used such as tertiary amines and metal salts, particularly lead octoate. In particular examples, polyoxypropylene glycol is reacted with 4,4<SP>1</SP>-diphenylmethane diisocyanate in the presence of, as catalyst (1) bis-[(propionato-mercuri)]-benzene and (2) bis-[benzoato-mercuri)]-chlorobenzene and lead octoate.
Patent GB-876885-A (GB)
Title: Improvements relating to counting apparatus
Inventor: KNOWLES ALFRED JOHN
IPC: G06M1/10
Filed: 1958-06-24
Abstract: 876,885. Counting-apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 18, 1959 [June 24, 1958], No. 20240/58. Class 106 (1). In apparatus for counting small objects such as the sapphire tips of gramophone needle styli, the objects are fed one at a time down a shoot 2 from which they fall on to a disc 3 rigidly attached to a piezo-electric crystal 4. The electric pulses so produced are fed to an amplifier 7 and shaper 9 to trigger a flip-flop 11 to produce square pulses which are counted on an electronic counter 13, the counted-down output of which may be applied to an electromechanical counter. The shaper 9 has a slightly longer recovery time than the crystal to prevent double counting due to the overswing voltage from the crystal.
Patent GB-386672-A (GB)
Title: Improvements in band brakes
IPC: F16D51/04
Filed: 1931-07-14
Abstract: 386,672. Internal - expanding bandbrakes. FROMAGET, P. M., MontÚe Queyvas, Toulon, Var, France. July 14, 1931, No. 20242. Convention date, July 16, 1930. [Class 103 (i).] In an internal expanding self-energizing band-brake of the type in which one end of the band is adapted to abut a stop 8 situated between the ends of the band and in which floating levers 2, 2<1> act on these ends, the axes 2a, 2a<1> of the levers are so located relatively to the brake band ends and to each other and the lengths of the levers are so chosen that when the brake is applied the band ends are moved in an arc of a circle such that the angle at which the extremities of the friction lining are applied to the drum is a small angle which is maintained substantially constant. An example of such a brake including dimensions is described. The bell-crank levers 2, 21 are pivotally mounted on levers 3, 3<1> pivoted at 13 to a member 9 fixed to the cover-plate of the brake-drum, the overlapping inner ends of the levers 2, 2<1> being acted on by the flat or concave end of an operating-lever 6, or by a cam, or by a rack-and-pinion device, actuated manually, or by a flexible membrane, or by an air or hydraulic piston, to force the ends of the band into contact with the drum. In the inoperative position the band closes on the stop 8 by its own resiliency and with the aid of a spring 14. The band is guided and supported at intermediate points by bolts 21 carried by fixed angle-plates 22 engaging slots in the band. The heels 5, 5<1>, Fig. 1, of the levers 2, 2<1> may be on the same level or, to compensate for the heels being at unequal distances, as shown, from the pivot 61, the levers 2, 2<1> may be of different lengths. In the case of brakes of small diameter, e.g. motorcycle brakes, the pivots 13 may be on the opposite side of the wheel hub to the position shown in Fig. 2 and the levers 3, 3<1> arched to clear the hub. A cooling-device for the brake comprises ribs 25, Fig. 8, welded on the brakedrum and holes 27 in the drum through which cooling air passes to escape by the opening 28 between the cover-plate and the drum. Openings in the band may be provided to allow the passage of a greater quantity of air between the band and the drum.