baber/WOPTO huggingface dataset:
Patent GB-841129-A (GB)
Title: Improvements in the polymerisation of ethyenically unsaturated monomers
IPC: C08F2/00
Filed: 1958-04-08
Abstract: Addition polymers are produced from ethylenically unsaturated monomers containing polar radicals and free from ionizable hydrogen atoms and capable of dissolving polymer formed therefrom by polymerization in bulk under substantially anhydrous conditions in the presence of a catalyst comprising (1) a compound of a metal of Group IVa, Va or VIa of the Periodic Table, or iron, silver or manganese in which the metal is directly attached to one or more of: a halogen, oxygen or a radical of formula -OR where R is a hydrocarbon residue, and (2) a reducing compound containing a metal atom directly attached by a single bond to a trigaral or tetrahedral carbon atom.  The monomer may be vinyl acetate, formate, pivalate or benzoate, 4-vinyl-pyridine, methyl acrylate, methyl methacrylate, vinyl ethyl or vinyl isobutyl ether, allylidene diacetate or methoxy butadiene and copolymers of these, as well as homopolymers, may be made.  The catalyst components may be TiCl4, TiOCl2, VCl4, VCl3, VCl2, VOCl3, FeBr3, CrCl3, MnBr2, MoCl5, Ag2O, 2-ethyl-hexyl vanadate, tetra-isopropyl-or -idobutyl-titanate, tetraethyl zirconate; aluminium triisobutyl, zinc diisobutyl, lithium butyl, sodium naphthalene, lithium aluminium tetradecyl, ethyl magnesium bromide, aluminium isobutyl dichloride, isobutyl dibutoxide or diisobutyl butoxide.  The polymerization reaction may be stopped by addition of acetic acid or water and the polymer may be purified by reprecipitation or solvent extraction and washing with dilute acid and water. Specification 806,095 is referred to.
Patent GB-108359-A (GB)
Title: Improvements in Belt Fasteners.
Inventor: TALCOTT WALTER ORLANDO
IPC: F16G3/08
Filed: 1916-08-03
Abstract: 108,359. Talcott, W. O., and Talcott, M. W. Aug. 3, 1916. Belt fastenings.-A fas tening for driving-belts comprises a sheet-metal plate 10 formed with rivet holes 11 and with one or more central turned-up lips 12 which serve as a templet for punching the rivet holes in the belt ends and also as a gauge for positioning the plate to cause its rivet holes to register with those in the belt. The plate is applied either between the layers of the belt or to its outer surface. Instead of one broad plate, a number of narrow plates may be used.
Patent GB-1293092-A (GB)
Title: Improvements in or relating to magazines for perforated roll film
Inventor: WALTHER BERNHARD
IPC: G03B17/30
Filed: 1971-04-23
Abstract: 1293092 Film magazines FILMFABRIK WOLFEN VEB 23 April 1971 11003/71 Heading G3T  A film magazine has a supply chamber 5 and a take-up chamber 6, each chamber having a curved guide passage 1, and one of which chambers has a cut-out 3 in line with the film perforations 2. The film is of the type having one perforation per frame. A recess 4 may be provided in the guide passage immediately opposite to the cutout 3, which is intended to permit entry of a locking claw on the camera to terminate the film wind. The construction is particularly suitable for cameras with focal plane shutters.
Patent GB-767654-A (GB)
Title: Process for hydrolysing organic silicon compounds
IPC: C08G77/00
Filed: 1953-04-22
Abstract: In the hydrolysis of halogenated silanes by the process of the parent Specification water is used as the hydrolysing liquid and the resulting solution of hydrohalic acid is recirculated to the process, after cooling, as hydrolysis liquor.  When a suitable concentration of acid has built up this is maintained by withdrawing some acid and adding a corresponding quantity of water.  The process reduces the quantity of hydrolysis liquor to be handled and prevents loss of hydrolysis product remaining in the hydrolysis liquor.  In an examplex, 33 kg. of dimethyl dichlorosilane, 75 litres of water and 250 litres of circulated 20 per cent hydrochloric acid are introduced per hour into the top of the apparatus, while 56 kg. of polysiloxane per hour are removed and also such a quantity of 20 per cent hydrochloric acid as to maintain the apparatus in equilibrium.
Patent GB-200912-A (GB)
Title: Improvements in or relating to split belt pulleys
IPC: F16H55/46
Filed: 1922-04-20
Abstract: 200,912. Wottle, H. April 20, 1922. Securing pulleys on shafts.-In split beltpulleys, the hub is replaced by ribs transverse to the shaft axis and other ribs parallel to it, the ends of these latter being so spaced as to grip the shaft when the pulley-halves are bolted together. As applied to a cast-metal pulley, the rim-halves and ribs are integral, lightening-holes being provided in the transverse ribs and pockets being formed in the rim to receive the heads and nuts of the bolts securing the halves together. As applied to a pulley with a segmental wooden rim 7, Figs. 3 and 4, arms 8, 8<1>, 9, 9<1> are cast with gripping-ribs 18, 18<1>, 19<1> and drum-halves 10, 10<1>, the end walls of which constitute the transverse ribs.
Patent GB-540275-A (GB)
Title: An improved device for supporting trousers in wear, applicable also to other garments
IPC: A41F3/02
Filed: 1940-07-04
Abstract: 540,275. Supporting trousers &c. CHARMOY, L. G. R. DE. July 4, 1940, No. 11217. [Classes 43 and 141] To dispense with sewing buttons on garments, particularly trousers, a stud-like device comprising a back plate a, head b, shank c and collar d is used, the back plate being inserted in the brace tag, and the head b through a buttonhole in the trousers located where the buttons are usually sewn. In a second construction, the collar d is omitted and the back plate extended and provided with a slot, by means of which the back plate may be secured by sewing, riveting &c. to the brace tag.
Patent GB-306754-A (GB)
Title: Improvements in freezing or cooling fish and other articles of food
IPC: A23L3/37
Filed: 1928-04-16
Abstract: 306,754. Nielsen. H. L. Raaschou-. April 16, 1928. Cooling fish.-Fish &c. prior to freezing proper is coated with a protective film of ice. The fish, preferably after covering to about 0‹ C., is dropped into water or sprayed &c. and cooled in a glacing chamber. Two or more superposed ice films may be formed on the fish. When the freezing proper is effected by contact with a liquid, the temperature of the ice film is previously brought close to that of the liquid.
Patent GB-1536392-A (GB)
Title: Aircraft and air cushion supported vehicles having an air cushion type undercarriage
IPC: B60V3/08
Filed: 1977-03-17
Abstract: 1536392 Track brakes TEXTRON Inc 17 March 1977 [25 March 1976] 11294/77 Heading F2E [Also in Division B7] To control the direction of an aircraft or aircushion vehicle during landing/taxing an inflatable undercarriage is provided with a trunk 20 of elastic sheet material on the base of which are fixed the elastomeric base plates 26 of brake units 25 comprising paired longitudinally parallel friction brake shoes 28 whereby when actuated under pilot control the brake units and associated portion of sheet project below the normal sheet profile so that the shoes engage a reaction surface but upon deflation of the trunk and deactivation of the brake units the shoes assume pleat-folded relationship as shown in Fig. 4A.
Patent GB-292311-A (GB)
Title: Improvements in or relating to portable trays, stands, tables, dinner wagons and the like
IPC: A47B31/00
Filed: 1927-04-29
Abstract: 292,311. Bailey, F. April 29, 1927. Rack stands. - A stand, table dinner-waggon, or the like a, Figs. 4 and 7, is provided with a pair of U-shaped members e pivotally connected therewith at the sides b so as to come together to form a handle in the erect position, or to fold against the sides. The base c of the stand &c. may be extended beyond the sides to support the members e in the folded position. The stand, table or dinner-waggon may have fixed legs f and a shelf a', Fig. 4, or the legs may be hinged at i, Fig. 7, below an extension b' below the top of the stand &c., and operating means, comprising a pivotal handle m and link members k, l, Fig. 7, for the legs f, may be provided, together with catches or stops to maintain the legs in the folded or extended position. Catches or stops may also be provided to keep the handle members in the raised or folded positions.
Patent GB-114745-A (GB)
IPC: B61G1/36
Abstract: 114,745. Davies, A. July 25, 1917. Accidents through breakdowns, preventing.- A safety device for preventing accidents in collieries owing to the breakage of tram couplings comprises an auxiliary wire rope A passing under a journey of trams and connected at one end to the haulage rope M, at the other end to the other haulage rope or to the hitching plate of the last tram, and at intermediate points bv means of links D, E or similar means to the link couplings F, G, H between each tram or groups of trams.
Patent GB-271844-A (GB)
Title: Improvements in and relating to packing means for engines, turbines and the like
IPC: F16J15/28
Filed: 1927-04-29
Abstract: 271,844. Leroy, J. E. J. May 29, 1926, [Convention date]. Addition to 166,142. Stuffing - boxes, substitutes for; packing, metallic.-In the packing described in the parent Specification the notched discs 11, which form labyrinth packings, are each formed in two or more parts held together by a garter spring 14. The split packing-rings are replaced by segmental packing-rings 15 relative rotation being prevented by pins 18. Each ring is compressed by a spring 17 or the pair may be surrounded by a segmental ring compressed by a spring. Each container ring consists of a halved disc 1 fitted into a recess in the end of an outer ring 2. The packing abuts at one end against a washer 5 and, at the other end, is pressed axially by a Belleville washer or other spring 8 confined between washers 7, 9. Specifications 186,478 and 193,643 are referred to.
Patent GB-114851-A (GB)
IPC: G01F23/02
Abstract: 114,851. Parks, H. S. April 12, 1917, [Convention date]. Indicators actuated by pressure of head of liquid.-The water level in a steam-boiler or the like is indicated at a distance by means of a differential-pressure indicator connected to the boiler by two pipes, one opening into the boiler steam space and filled with water maintained at a fixed level, and the other opening into the boiler below the water level therein. The pipe connexion 15 between the boiler 11 and a distant pressure gauge 18 opens into the bottom of a chamber 17, which is in communication with the boiler steam space through a pipe 22, and which has an overflow pipe projecting into the chamber so as to maintain the water collecting in the chamber by condensation of boiler steam at a constant level. The overflow pipe forms a con. tinuation of the pipe connexion 16 between the boiler water space and the pressure gauge. The gauge consists of a glass tube closed at its top and surrounding a second glass tube open at both ends, the tubes being connected at their bottom ends to the pipe connexions 15, 16 so as to act in the manner of an inverted U-tube. A sliding scale in front of the tubes is initially adjusted so that its zero is opposite the level indication in the tubes corresponding to the constant pressure head in the pipe connexion 15.
Patent GB-230665-A (GB)
Title: Improvements in or relating to lighting arrangements or installations
IPC: F21S8/00
Filed: 1924-05-09
Abstract: 230,665. Bernard, O. P. May 9, 1924. Lighting, systems of; stage and like lamps.- In order to illuminate uniformly a relatively large irregular or curved surface, such as a panoramic picture or the painted scenery of a theatrical stage, a number of lamps are arranged as nearly as possible in strict parallelism with the surface so as to form as a whole a lighting source of a configuration corresponding to that of the surface, each lamp projecting upon a section of the surface a beam of equal intensity and at substantially the. same angle as those projected by adjacent lamps upon adjacent sections. For lighting a stage A having an arc-shaped back screen B, adjustable tubular lamps 1 having their axes vertical or horizontal are arranged in tiers on arc-shaped brackets 2 concentric and as nearly as possible on a level with the screen B and are secured to a wall C above a proscenium A<1>, the brackets 2 being superposed or some advanced or retracted as required by the configuration or colouring of any particular section of the screen. In order to illuminate the ceiling and to obtain coloured lighting effects on the screen B, a series of lamps L may be arranged in a series D behind a stage section S, these lamps preferably being carried bv individual carriers of a configuration corresponding to that of the ceiling or other part to be illuminated. Each lamp is mounted in a lantern having exchangeable plain or coloured glass or mica panels.
Patent GB-115203-A (GB)
IPC: B29B7/56
Abstract: 115,203. Jackson, W. J. Mellersh-, (Goodycar's Metallic Rubber Shoe Co.). April 25, 1917. India-rubber, calendering.- Relates to a calendering or moulding machine for rubber comprising two or more sets of substantially horizontal rolls 41 - - 46, Fig. 1, the respective rolls being substantially in vertical alinement and capable of being separately adjusted or removed, independently heated, and driven so that the speed of any set may be changed independently of the other sets. They are preferably driven by a series of sprocket chains each of which is provided with a safetylink. As the stock passes from one set of rolls to the next, it may be deflected, for example, by off-set and yielding rollers 74, 75, so that the position of the bank may be controlled, and a yielding tension may be applied to the stock. This tension may be automatically indicated on a gauge 78 attached to a slide 76. For making sheets from which boot soles are to be cut, the roller 45 may be engraved and the nip at one end of the rollers may be greater than at the other, the heel portion being subsequently cut from this thick end. Fig. 4 shows one method of driving the rolls, any pair of which may be adjusted by means of screws 37 engaging with removable cheeks 39. To remove any set of rolls, the bolts 40 are unscrewed, whereby the cheeks 39 with the adjusting screws 37 may be detached so that the journals and rolls also may be removed. Fig. 1 also shows a preferred form of automatic feeding and folding device. The sheet of rubber 15 from the feed-rolls 7, 8 passes over a roller 14, between endless conveying belts 12, 13 to the folding-device 22, 26 which comprises a disk 22 and pair of rolls 26 set at right-angles to the roller 18. The sheet then passes over rollers 28, 72 to the calendering or moulding rolls. Reference is made to Specification 115,091.
Patent GB-849637-A (GB)
Title: Improvements in methods & devices for separating a granular material from a liquid
Inventor: LARA GEORGES COHEN DE
IPC: B01J8/00
Filed: 1958-04-11
Abstract: 849,637. Filters ; gravity-separation apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 11, 1958 [April 12, 1957], No. 11523/58. Class 46. [Also in Group XIII] A suspension of granular solids (e.g. ion-exchange resin) in a certain liquid (e.g. water) is fed at 15 into a tank 1 containing a quantity of that liquid, and through which moves an endless conveyer belt 4 disposed at an angle in the tank less than the angle of repose (in the liquid) of the granular material, so that excess grains on the belt are removed near the liquid surface by surface tension and connection effects, and so that the portion of the belt emerging from the tank carries a substantially continuous single layer of grains. The belt angle may be varied by moving roller 7 laterally, the upwardly-spring- urged perforate guiding plate 14 maintaining close contact with the belt. The belt passes over a suction drying roller 9.
Patent GB-347464-A (GB)
Title: Improvements in or relating to motor vehicle bodies
IPC: B60J7/053
Filed: 1930-04-12
Abstract: 347,464. Road vehicle opening tops. TASKER, H., Manora, Brodrick Road, Hampden Park, Eastbourne. April 12, 1930, No. 11627. [Class 108 (i).] Road vehicle roofs having suitable guttering and a closable aperture are provided with a rigid cover N which is normally flush with the line or plane of the roof when closed and is adapted to be withdrawn, by sliding in a frame, beneath the fixed part D of the roof to open the aperture. The front end of the cover N is slidably connected to guides J in the roof opening which guides slope upwardly as shown towards the front end of the roof. The rear end of the cover is slidably connected to guides o on a frame M which is pivoted at the rear end to some fixed part of the roof while the front end is adapted for limited vertical movement the front end of the frame M being held in either lowered or raised position by means of a pin L in an apertured bracket K. The rear end of the cover N is provided with a suitable gutter B into which projects a drip C<2>. The sides of the roof opening are provided with gutters P while its front end also has a gutter R. In a modification the frame M may be secured at its rear end to the fixed part of the roof by a spring bolt which allows limited longitudinal and pivotal movements the front end of the frame being engaged by means of a projection in either one of two slots.
Patent GB-332272-A (GB)
Title: Improvements in or relating to telephone transmitters or receivers for reproducing or recording sound waves
IPC: H04R7/18
Filed: 1929-04-15
Abstract: 332,272. Midgley, A. H. April 15, 1929. L o u d - speakers; diaphragms.-A telephone transmitter or receiver comprises a vibratory member loaded with an inertia weight or ring to modify the frequency - response characteristics thereof and so mounted as to be peripherally free and not subjected to any restoring force at its periphery. The diaphragm d of a moving coil loud-speaker consists of a flat disc of paper or metal fixed to an annular ring e of metal or wood which is slidably mounted on three pins f on the magnet frame. The holes in the ring e are bushed with felt g, stops h being provided to limit the travel of the ring. The diaphragm may be stretched within the ring so that its natural frequency is above the audible range, and the weight of the ring e is ten to twenty times that 'of the diaphragm and moving coil, so that at low frequencies the diaphragm vibrates as a whole, while at higher frequencies only the centre of the diaphragm will vibrate. The clearance between the diaphragm and baffle board, if provided, may be filled with a strip of velvet, and a rigid cone of light material may be fixed to the centre of the diaphragm to focus the sound; alternatively a flare or horn may be provided for that purpose.
Patent GB-601164-A (GB)
Title: Frequency control of oscillation generators
IPC: H03C3/14
Filed: 1945-05-07
Abstract: 601,164. Automatic control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 7, 1945, No. 11647. Convention date, May 6, 1944. [Class 38 (iv)] [Also in Group XL (c)] Frequency.-The operating frequency of a crystal-controlled oscillator is varied in accordance with a control potential by means of variable reactances associated with the piezoelectric crystal in the grid-cathode circuit of the oscillator valve. In one embodiment, Fig. 8, the crystal C and series inductance Ls are shunted by an inductance Lp in parallel with a thermionic reactance RT<SP>1</SP>. Inductance Ls is shunted by a thermionic reactance RT, and the control potentials are applied to the grids of the valves RT, RT<SP>1</SP> in parallel. In a modification, Fig. 9 (not shown), the series inductance is shunted by a reactance valve connected to simulate a capacity. The inductance of the thermionic reactance in shunt to the parallel inductance and the capacity of the thermionic reactance in shunt to the series inductance are varied in by control potentials applied to the grids in push-pull. In another arrangement, Fig. 10, the crystal C, shunted by an inductance Lp, is connected in series with a condenser Cs, and an inductance Ls in parallel. A thermionic capacitance M is connected across condenser Cs and a thermionic inductance N is connected, across inductance Ls. The thermionic reactances M, N are varied by control voltages applied in push-pull. The thermionic reactance circuits shown may be replaced by any other reactance valve arrangements. The Specification includes a discussion of the effect of a variable reactance connected in series or parallel with a resonant piezoelectric crystal.
Patent GB-1442862-A (GB)
Title: Methods of forming thermoplastic encapsulated articles
IPC: B29C51/12
Filed: 1974-03-15
Abstract: 1442862 Bottle crates BRIDGEND INVESTMENTS Ltd 4 March 1975 [15 March 1974] 11647/74 Heading B8P [Also in Division B5] A bottle crate is shaped from a cruciform planar structure comprised of metallic reinforcement elements 22, 23 encapsulated in thermoplastics material 24 [See Div. B4-5]. The adjacent edges of the crate sides, which may be welded together, have tab and slot connections 26, 27; a separating element 25 may be attached by tab and slot connections 27, 28.
Patent GB-1440262-A (GB)
Title: Apparatus for removing particulate matter from air
IPC: B01D47/02
Filed: 1973-03-10
Abstract: 1440262 Gas washing P DALY 21 March 1974 [10 March 1973] 11684/73 Heading B1R An apparatus for removing particles from air comprises a closed tank having a liquid inlet through which liquid can be introduced so that the tank is filled to a level controlled ball-cock 17, an air inlet 19 in the top 10 of the tank which in conjunction with centrifugal fan 27 feeds air at pressure into the plenum above the liquid level in the tank, an air outlet 21, a conduit formed by a part cylindrical casing in the sloping floor of the tank and extending beyond the exterior thereof and above the liquid level as a tube 16 and containing an auger 24 for discharging liquid-laden dust which has collected in the floor of the tank, and a baffle 20 depending from the top 10 of the tank and extending the full width thereacross and extending downwardly so that the lower edge is adjacent the liquid level and divides the plenum above the liquid into two chambers so that when gas to be cleaned is fed under pressure by fan 27 through inlet 19 into the first chamber the pressure distorts the liquid surface so that air escapes between the liquid surface and baffle end and is cleaned by the turbulence caused thereby. A flue 22 with an interposed baffle box 23 is mounted over the air outlet 21.
Patent GB-179171-A (GB)
Title: Mills for grinding hard material
IPC: B02C23/00
Filed: 1922-04-26
Abstract: 179,171. Aldehoff, H. April 27, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Roller-and-ring mills. - In a mill for grinding hard material, the ground material is discharged from the mill on to a sieve 3, Fig. 1, the fine material passing through the sieve being directed by a funnel 6 to a bag-filling apparatus while the coarser material passes by a channel or tube 7 to a trough 8, whence it is returned by an elevator 11 and shoot 12 to the feed-hopper 2 of the mill. The sieve is suspended by rods 4, 5 from the mill so as to be vibrated by the mill. In a modification, Figs. 2 and 3, the sieve 23 is mounted on a shaft 18 carried by a frame 19 suspended bv rods 24, 25 from the rockers 13, 14 of the rollers 9, 10 of the mill, and is connected by arms 17 and a rod 16 with a cam 22 on the roller 15. The sieve 23 is roof-shaped and may be provided at its apex with a partition wall 26 extending upwards into the discharge of the mill to direct the ground material to the opposite sides of the sieve.