baber/WOPTO huggingface dataset:
Patent GB-1113691-A (GB)
Title: Apparatus for preparing sheet-wrapping material
Inventor: JALLANDS ROY LESLIE
IPC: B65B41/02
Filed: 1964-08-12
Abstract: 1,113,691. Preparing sheet-wrapping material. TRANSPARENT PAPER, Ltd., and WALL PAPER MANUFACTURERS Ltd. 12 Oct., 1965 [12 Aug. 1964], No. 32889/64. Heading B8C. [Also in Divisions B4 and B6] A web of wrapping material to be cut into lengths which can be varied is fed only during part of the rotation of a driving member, and is cut and pasted during the rest of the rotation. In the embodiment shown the web is fed by nip rollers 20, 22 (Fig. 1), one of which is driven from a shaft 54 rotatable in both directions and fitted with a one-way clutch (66) (Fig. 2, not shown) so that the nip rollers are only driven in the sheet-feeding direction, the clutch freewheeling in the reverse direction. The shaft 54 (Fig. 1) is driven in alternate directions by means of a rack and pinion 60, 62 pivotally attached to a crank 56 on a driven shaft 44. The range of angular rotation of the shaft 54 is variable to accommodate different lengths of wrapping material by adjustment of the throw of the rack 60. Also mounted on the shaft 44 are eccentrics 72 carrying links 74 which actuate a movable cutter 26, an adhesive applying device 30, and a sheet clamping means 78. Downward movement of the link 74 firstly causes the newly fed web 12 to be clamped, and then further movement against the action of a spring (84) (Fig. 3, not shown), causes the blade 26 to sever the web. The adhesive applying device 30, which was charged by roller 92 during the previous upward stroke of the link 74, is swung down by the action of a pinion 86A on a rack 88, until it encounters the blade 26, and the further descent required for it to encounter the web 12 is allowed by the action of a spring 90. The wrapper is subsequently fed by means of belts 32 to a wrapping position 34, where wrapping of the cylindrical object 40 may be accomplished manually, and the end wrapping device of the Specification 1,113,692 may be employed.
Patent GB-312307-A (GB)
Title: Improvements in and relating to variable speed gearing
IPC: F16H29/08
Filed: 1928-11-10
Abstract: 312,307. Buckeridge, W. May 24, 1928, [Convention date]. Variable-speed gearing suitable for vehicles comprises a reversible one-way drive using toothed gearing. The reciprocation of connecting- rods 23, 24 is converted into the oscillation about road-wheel axle 4, Fig. 8, of three-armed frames 25, 26. The frames 25, 26 carry one-way devices 29, 30 for forward driving, and other 31, 32 for backward driving. Upon a drum 49 are two toothed wheels 27, 28, Fig. 9, engaged by toothed pinions which turn idly on the idle stroke and on the driving stroke are prevented from turning by friction shoes such as 33, 34, 35, 36, which are advanced automatically into engagement with conical shroulds 46 upon the pinions. A cam 50 is turned to disable the reverse-driving one-way devices when forward driving is required, and vice versa. A balance gear may be carried within the drum 49. A variable throw conical crank shown in Fig. 6 may be used for converting the rotation of engine shaft 10 into the reciprocation of the rods 23, 24. A rod 12 pivots in the plane Fig. 6 about a fixed axle 22 and also about a perpendicular axle 20. Its other end is guided in a radial slot 11<1>, Fig. 7, in an arm 11 secured to shaft 10, and is moved inwards and outwards from a control lever 19 through a toggle linkage 16, 13, 14, The rod 12 thus traces out the surface of a cone, and a frame 21 is rocked about axle 22 with amplitude depending upon the position of lever 19.
Patent GB-282056-A (GB)
Title: Improvements in or relating to absorption refrigerating machines
IPC: F25B17/00
Filed: 1927-12-06
Abstract: 282,056. Kilburn, B. E. D., (Sulzer FrÞres Soc, Anon.). Dec. 6,1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 9, 1927]. Electrically - actuated valves; thermally - actuated valves.-In an intermittently-acting refrigerating system, the condenser is cooled by water flowing through a pipe F, and this water is diverted by a device K through a pipe P in the generatorabsorber A to cool the latter during the absorption period. The device K comprises a cylinder fitted with a pistonvalve 71a which alternately closes the outlet to the pipe P and the outlet through a pipe 72 leading to a balanced tipping tank 73 controlling a switch 77 in the circuit of the heating element H of the generator absorber. With the parts in the position shown in full lines the generator-absorber is being heated, and the rod 17 of the piston-valve 71a is latched against movement to the right by a rod N of a thermostat L located in the generatorabsorber. At the end of a heating period the expansion of the bellows M of the thermostat raises the rod N to release a collar 80 on the rod 17, which then moves to the right under the action of a spring 81. The tank 73 empties and the switch 77 is moved to cut off the heating- clock-drivien disc 20, which carries a pin 19 adapted to engage a collar 17a on the rod 17 to move the rod again to the latched position shown. The speed of the disc 20 may be altered by mechanism such as a centrifugal governor with spring pressure adjusted by hand or automatically by a thermostat in the cooling-cabinet. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following:- The rod 17, Fig. 2 (cancelled) which controls the heating-current and the cooling-water supply in a manner similar to that described above, is controlled in both directions by clockwork. It has lugs 18, 18<1> engageable by a projection 23 on a worm-wheel 20 driven through one revolution only and alternately in opposite directions by a reversible electric motor 22, controlled by variable time switches and electromagnets adapted to open the motor circuit after each complete revolution of the wheel 20. The times of operation are determined by the relative positions of pegs such as 3, 4, 5 placed in holes in discs 1, 2 on the same shaft of an electrically-driven clock. The circuit of the electromagnet 10 is controlled by the disc 2, and that of the electromagnet 29 by the disc 1 and the wheel 20. An electromagnet having its armature mounted on the rod 17 may be employed in place of the motor and worm gear. This subject-matter does not appear in the Specification as accepted.
Patent GB-992365-A (GB)
Title: Improvements in the clarification of water containing mineral solids
IPC: C02F9/00
Filed: 1963-08-20
Abstract: Mineral solids suspended in aqueous solution are flocculated by ammonia.  If the suspension has a negative zeta potential effective flocculation only takes place in the presence of ferric ions.  Sodium carbonate, alum, calcium hydroxide, morpholine, cyclohexylamine, di-N-butylamine, tri-sodium phosphate, amylopectin, ammonium chloride and ammonium sulphate are mentioned as flocculating agents.
Patent GB-206388-A (GB)
Title: Improvements in roller coasters and cars therefor
IPC: A63G7/00
Filed: 1922-12-04
Abstract: 206,388. Feucht, C. G. Dec. 4, 1922. Railways for recreation.-A car for amusement apparatus is provided with a gate or handle-bar having locking means operable non-concurrently with the movement of the bar and only after the bar is properly closed by a device out of the reach of the passengers. The gates comprise crossbars 14, 22 on posts 15, 23 pivoted to the car body at 16, 24, and siderails 18, 25, which are adapted to enter recesses 18<a>, 26 when the gates are open. Latch bars 21, 27 operated by toggles 31, 33 and bars 35 are raised to prevent the gates being. opened, but can only be raised when the gates have been fully closed. The rods 35 are operated by the link 36 and lever 37 on the shaft 38, which is provided with a foot treadle placed externally of the car body. A lever 41 on the shaft 38 raises a rod 42 when the gates are closed, but in the event of the gates not being closed, the rod 42 depends and so engages the upstanding lever 54 placed on the track. The lower end 56 of this lever is connected by a cord 57 to bell-crank mechanism 58, 60 to throw out a switch 53 and prevent the car being drawn up the incline 13<a> until the gates have been properly closed. The rod 42 rides on the bar 54<a>, thus keeping the switch 53 open until the cars have been brought to rest. The gates are automatically unlocked at the end of the journey by a spring-pressed cam on the track engaging a vertically movable shoe 64 on the car. This shoe is provided with teeth engaging a gear segment 69 on the shaft 38, thus withdrawing the latch bars 21, 27. The treadle on the shaft 38 is enclosed by a platform during the journey and a free space at the unloading station is left to enable it to be operated.
Patent GB-949387-A (GB)
Title: Process for the manufacture of polymerisation products of alkenes and alkadienes
IPC: C08F4/58
Filed: 1960-09-26
Abstract: Organo-metallic compounds of the general formula, [M1M11]Rn, where M1 is an alkali metal or an alkaline earth metal, M11 is a metal of Group II(B) of the Mendel<\>eeff Periodic System, R is a substituted or unsubstituted hydrocarbon radical and, n is an integer of 3 or 4, are made by reacting an organometallic compound of an M11 metal, in a solvent with an M1 metal. The M1 metal may be Li, Na, K, Rb, Cs, Mg, Ba, Ca, Sr, or Ra.  The M11 metal may be Cd, Zn, or Hg. In the examples, diethyl zinc is reacted with Ca, or Sr, in hydrogenated diesel oil of boiling range 190 to 230 DEG C.ALSO:Polymers of mono- and/or di-ethylenically unsaturated hydrocarbons alone, or in the presence of substituted hydrocarbon monomers are made by effecting the polymerization of one or more of the monomers in the presence of a substituted or unsubstituted saturated aliphatic or cycloaliphatic hydrocarbon solvent and, a catalyst complex compound of the general formula, [M1M11]Rn in which M1 is an alkali metal o alkaline earth metal, M11 is a metal of Group II (B) of the Mendel<\>aeeff Periodic System, R is a substituted or unsubstituted hydrocarbon radical and, n is the integer 3 or 4. The speed of the reaction may be increased by effecting the polymerization in the presence of an organic silicon compound, preferably, a linear diorganosiloxane polymer, or a cyclic diorganosiloxane polymer, or an organo-silicon compound having hetero-atoms incorporated therein such as A1, Ge or Sn. The polymerization may be started in the presence of a small proportion of solvent, and the polymerizate progressively diluted with additional solvent and/or additional catalyst. Specified hydrocarbon monomers are ethylene, propylene, butene-1,3-methyl-butene-1,4-methyl-pentene-1, styrene, hexene-1, heptene-1, octene-1, isobutylene, methylethylethylene, allene, pentadiene, cyclopentene, cyclopentadiene, or phenyl butadiene. The substituted hydrocarbon monomers may be vinyl chloride, alkyl bromide, allyl iodide, tri- or tetra-chlorethylene, tetrafluoroethylene, chloroprene, dichlorostyrene, vinyl acetate, vinyl butyl ether, acrylic or methacrylic acid esters, acrylonitrile methacrylonitrile, methylvinyl carbinol, acrylic or methacrylic acid, vinylacetic acid, or allyl stearate.  The Specification contains many examples of suitable solvents selected from hydrocarbons, aliphatic alcohols, esters, saturated aldehydes, halogenated hydrocarbons, and nitrogen-substituted hydrocarbons such as nitromethane, nitroethane, acetonitrile, or n-propylamine. The Specification contains an extensive list of organo-silicon compounds. Homopolymers of ethylene, and propylene are exemplified, and also copolymers of ethylene and propylene, ethylene and acrylonitrile, and, ethylene and methylmethacrylate. The preferred catalysts are ethyl - lithium - zinc, ethyl - cadmium - zinc, and ethyl-strontium-zinc.
Patent GB-699289-A (GB)
Title: Improvements in dental chair foot rests
IPC: A61G15/10
Filed: 1952-12-31
Abstract: 699,289. Seats. RITTER CO., Inc. Dec. 31, 1952 [Aug. 15, 1952], No. 33113/52. Class 52 (ii) The foot rest of a dental chair curves outwardly and upwardly from the heel board in such a manner as to accommodate patients having different leg lengths in a more comfortable manner. As shown, the . side brackets 27 below the seat 13 have forward extensions 31 which support the foot board 32, the curvature of which is obtained by means of the radii of patients' progressively longer legs measured from the knee joint to the foot. While the foot board is intended to be rigidly secured to the bracket 27 it may, alternatively, be pivoted thereto.
Patent GB-194398-A (GB)
Title: Improvements in and relating to the bows of violins and the like musical instruments
IPC: G10D3/16
Filed: 1921-12-10
Abstract: 194,398. Pardy, L. M. Dec. 10, 1921. Stringed instruments, bows for.-The hair is fastened at the ends by special clamps engaging slots in the bow. At the point end, the hair, preferably coated with glue, is compressed in a short flattened conical tube f, which is completely inserted in an inclined slot u. The clamp at the frog end consists of a flat tubular grip h which, after insertion of the hair, is folded over and inserted in a holder portion i having a hook t projecting from either side. One of the hooks t is inserted in one of a series of slots d in a plate c in the frog and a locking cover-plate e slid into position. The hairing may be reversed, the other hook t engaging one of the slots d.
Patent GB-897690-A (GB)
Title: Improvements in and relating to the electrodeposition of platinum or palladium
Inventor: WILSON LESLIE FRANK
IPC: C25D3/50
Filed: 1959-09-30
Abstract: 897,690. Electroplating with platinum or palladium. JOHNSON, MATTHEY & CO. Ltd. July 27, 1960 [Sept. 30, 1959], No. 33207/59. Class 41. Base or noble metals are electro-plated with Pt or Pd using an electrolyte containing a platino-nitrite complex of formula where R is chloride, perchlorate, sulphate, sulphamate, oxalate, or hydroxide, and Na may be replaced by K, alkaline earth metal, ammonia or hydrogen. In examples, 5 to 20 g. per litre of or the sulphate H2Pt(NO2)2SO4 and corresponding Pd. compounds are used. As base metal there may be plated Ag, Au, Cu, Ni, Pb and Ti, and after an undercoat of silver or nickel also Fe, Zn, Sn and Cd. The Provisional Specification also refers to the use of ruthenium and rhodium platino-nitrite complexes. This subject matter does not appear in the Complete Specification.
Patent GB-652200-A (GB)
Title: Improvements relating to alternating current dynamo electric machines
Inventor: SIM NORMAN STUART
IPC: H02K3/28
Filed: 1948-12-24
Abstract: 652,200. Winding layouts for dynamoelectric machines. ENGLISH ELECTRIC CO., Ltd. Dec. 24, 1948, No. 33251. [Class 35] In a dynamo-electric machine having a full-pitched three-phase winding, the coils are connected together so that there are alternately n more and n less coil sides in each pole phase layer, i.e. in each phase group occupying the top or bottom slot positions, than there would normally be in a full-pitched winding of the same slotting. In this way the phase spread is increased without short-chording. In a machine having 2¢ slots per pole per phase the number of coil sides per pole phase layer would normally be alternately two and three providing a spread of three slots, but according to the invention, shown for one phase only in the Figure, they are alternately one and four coil sides per pole phase layer, i.e. alternately one more and one less than normal, thus producing a spread of four slots per phase group.
Patent GB-816280-A (GB)
Title: A method for the preparation of aminoaceto nitriles
IPC: C07C255/24
Filed: 1957-10-24
Abstract: Amino-acetonitriles are prepared by maintaining a liquid reaction medium containing formaldehyde and hydrogen cyanide and having a pH value below about 3 at a temperature below about 100 DEG  C., introducing ammonia or an amine at a rate such that all of it reacts substantially immediately to form the corresponding amino-acetonitrile, and separating the product.  Preferred conditions are a temperature of 35-50 DEG  C. and a pH below about 1.  The HCN may be used in liquid or gaseous form, and the formaldehyde may be used as its polymer.  The process may be operated on a batch, semicontinuous or continuous basis. Suitable amines are alkylamines, arylamines, aralkylamines and alkylene di- and poly-amines, specified amines being ethylene and propylene diamine, diethylene triamine, triethylene tetramine, dipropylene triamine, tripropylene tetramine, benzylamine, 1,2-cyclohexylene diamine, 1,2 - cyclopentylene diamine, hydroxyethylethylene diamine, N,N1-dihydroxyethylethylene diamine, aniline, toluidine, m-hydroxyaniline, and N,N1-diphenylethylene diamine.  The resulting amino-acetonitriles may be hydrolysed to the corresponding acids or salts, e.g. with strong mineral acid or alkali metal hydroxide such as sodium, potassium or lithium hydroxide. Examples describe the production of ethylene diamine tetra-acetonitrile and nitrilotriacetonitrile, which are hydrolysed to the corresponding acids and salts.
Patent GB-342689-A (GB)
Title: Process for varying the dyeing properties of cellulosic fibrous material
IPC: D06P5/22
Filed: 1929-11-01
Abstract: The dyeing properties of cellulosic fibrous materials are modified by treatment with caustic alkali and allyl halide, the conditions being such that the formation of allyl cellulose does not lead to loss of the fibrous structure or a diminution in the strength of the fibre. The allyl halide may be applied in the liquid phase with or without a solvent, or in the form of vapour. The treated materials are immune to direct dyestuffs, but are capable of being dyed with basic dyes and with the feebly basic dyes used with cellulose acetate.  In examples, cotton yarn is mercerized in cold soda lye, or while stretched on a glass frame, and is then, after pressing or draining, rapidly wetted with allyl bromide or a mixture of allyl bromide and chloride, and suspended in a current of the reagent until the desired conversion has taken place; the yarn after wetting with hot water and then pressing, is introduced into a solution of allyl bromide in carbon tetrachloride, and the mixture raised to boiling temperature while introducing with vigorous agitation the caustic soda lye. Specification 234,847, [Class 2 (ii), Cellulose &c.], is referred to.
Patent GB-1350612-A (GB)
Title: Depolymerisation of acrylic polymers
IPC: C08F8/50
Filed: 1971-07-15
Abstract: 1350612 Alkyl esters of acrylic acids ROHM & HAAS CO 15 July 1971 [15 July 1970] 33326/71 Heading C2C Alkyl esters of acrylic and/or alpha alkyl substituted acrylic acid esters are prepared by depolymerizing the corresponding polymers by contacting with a constantly renewed surface of a hot molten metal in an inert atmosphere. The molten metal may be lead, tin or cadmium at 400‹ C., and the surface is mechanically agitated. The monomer vapours are condensed in a concurrent or countercurrent condenser with partial recycling. Examples describe the treatment of polymethyl methacrylate.
Patent GB-1393231-A (GB)
Title: Cycloamidines of triiodobenzamides and triiodophenyl-alka lonic acids the preparation thereof and compositions containing them
Inventor: OBERNDORF WERNER DR
IPC: C07D207/22
Filed: 1973-07-12
Abstract: 1393231 X-ray contrast agents CHEMIE LINZ AG 12 July 1973 [21 July 1972] 33383/ 73 Heading A5B [Also in Division C2] Novel compounds I in which X is a bond or -CO-NR 1 -, Y is C 1-4  alkylene Z is a bond or ethylene and R and R 1  are hydrogen, C 1-4  alkyl, C 2-4  alkenyl, hydroxy C 1-4  alkyl alkoxyalkyl of up to 6C atoms, cyclohexyl, phenyl or benzyl and the C 1-4  alkyl esters and salts thereof are X-Ray contrast agents and form with a carrier a preparation which may be administered orally or parenterally.
Patent GB-1150306-A (GB)
Title: Improvements in or relating to method and apparatus for Treating Liquid Fuel Oil
IPC: F02M27/08
Filed: 1966-07-25
Abstract: 1,150,306. Treating fuel oil. COAL RESEARCH INSTITUTE and KAY SEVEN CO. Ltd. 25 July, 1966 [5 Aug., 1965(2); 12 March, 1966; 5 April, 1966], No. 33400/66. Heading C5E. A method for treating liquid fuel oil comprises the steps of circulating the liquid fuel oil from at least one supply source through at least one circulating line including at least one combustion zone of at least one engine and applying at least one ultra-sonic wave to said liquid at at least one point in each circulating line. Suitable apparatus may comprise a line formed with flat faces and optionally containing a flowrestricting plate to cause turbulent flow; the ultrasonic vibrations are applied to one or both of the flat faces. The frequency may be 27 kc./s.
Patent GB-1488514-A (GB)
Title: Operating theatre
IPC: F24F13/068
Filed: 1975-04-08
Abstract: 1488514 Ventilating operating theatres HOWORTH AIR ENG Ltd 8 April 1975 [26 April 1974] 33427/76 Divided out of 1488513 Heading F4V The invention relates to apparatus for providing a clean air zone around a patient undergoing surgery in an operating theatre as described in the Parent Specification and the claims are directed to a dependent wall structure surrounding the air diffusion means which supplies the air at differing velocities, so that any contaminant approaching the clean air zone meets air of progressively increasing velocity.
Patent GB-366577-A (GB)
Title: Improvements in or relating to slip-in mounts for photographic films and the like
IPC: G03B21/64
Filed: 1930-11-06
Abstract: 366,577. Picture mounts &c. RICH, H. C., Magna Works, London Road, Bedford, and ILFORD, Ltd., Ilford, Essex. Nov. 6, 1930, No. 33439. [Class 11.] Relates to slip-in mounts for photographic films, prints, &c. of the type comprising a two-ply sheet pierced with apertures 6 slightly smaller than the films, the two plies being separated around the peripheries of the apertures to form channels to engage the edges of the films, and one ply having insertion openings 8 for the films. According to the invention, a raised ramp 10 is located in each insertion opening, to facilitate the entry of the film and to prevent it from working out.
Patent GB-642768-A (GB)
Title: Improved process for brazing austenitic ferrous metals and articles produced thereby
IPC: B23K1/00
Filed: 1947-12-18
Abstract: 642,768. Plating compound poppet valves. FORD MOTOR CO., Ltd. Dec. 18, 1947, No. 33476. Convention date, Dec. 28, 1946. [Classes 83 (ii) and 83 (iv)] Brazing.-An austentic steel tappet valve is faced with a ring 11 of hard metal by copperplating the head, applying a copper base brazing alloy and holding at an elevated temperature until substantially all the brazing metal is absorbed. The face 12 of the ring, preferably cast by the lost wax process, is machined to a taper less than 7 degrees (preferably 4 degrees) and the valve is machined to give a press fit therein and is copper-plated to a depth of one to two-thousandths of an inch. The assembly with a ring of copper near the joint and a flux of anhydrous borax is heated for 30 minutes in a neutral or reducing atmosphere to a temperature between 2050‹ and 2300‹ F. Tobin bronze may alternatively be used as the brazing metal for which a temperature of 1850‹ F. for 30 minutes will suffice. Lower temperatures may be used for longer periods and the neutral or reducing atmosphere may be dispensed with after the brazing material has melted. The hard metal may be that known under the Registered Trade Mark " Stellite ".
Patent GB-282105-A (GB)
Title: An improved process and apparatus for the production of lumps of sugar
IPC: C13B50/02
Filed: 1927-12-12
Abstract: 282,105. Chambon, Ltd., (Assignees of Chambon, L.). Dec. 11, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Sugar cutters. - A process for making loaves of sugar consists in breaking in the direction of their width slabs of sugar having a greater length than width and further breaking the pieces in the direction of the length of the slabs. Three slabs of sugar 1 are fed to a known form of cuter 2 which breaks the pieces along the lines 3, the pieces being thereafter fed to a second cutter 4 for breakage along the lines 5. The second cutter preferably comprises circular cutter blades 6 separated bv distance rings 7. Both cutting operations can be carried out in one or two machines.