baber/WOPTO huggingface dataset:
Patent GB-1499844-A (GB)
Title: Method and machine for making bags
IPC: B31B41/00
Filed: 1976-03-05
Abstract: 1499844 Making gramophone record bags; cutting out ROBERT STAGE & CO Ltd 5 March 1976 [20 March 1975] 11538/75 Headings B5D and B4B A method of making bags for gramophone records comprises cutting-out substantially triangular portions which may have curved or straight sides, from the edge regions of a web 10, transversely cutting the web 10 into sections so that said cut-outs are located at the middle of opposed edges of each section, folding each section along a line extending between the cutouts therein and securing the folded sections along said opposed edges to form open bags. The sections may include side flaps which are adhered to opposed portions of the sections to form the open bags. The abovementioned web which may be of paper, may be combined with a plastics lining web 22 prior to being cut. The plastics lining is transparent or translucent. A machine for performing the method comprises a plough unit 7 and a roller 6 having turnover treads for turning in and creasing the longitudinal edge regions of the web 10. A turn-back plate 11 then folds the longitudinal edge regions back to their original condition so that a cutting unit 12 may remove portions of said edge regions to produce the side flaps. If the side flaps are to be on the inside of the finished bags, the web is then passed through a plough unit 13 which turns in the side flaps so that they receive gum from an applicator roller 17 which may also applies gum to other portions of the web to secure the lining web 22 thereto. Centre holes may be punched in the web 10 before it is combined with the lining web 22 by a pair of punch rollers 21. The cut-outs may be formed in the longitudinal edges of the web. by knife blades provided on a transverse cutting roller 41 or, if the bags are to be unlined, in the cutting unit 12 or on one of the punch rollers 21. The transverse cutting roller 41 may include a pair of curved cutting blades 45, 46 or a cutting blade (49) Fig. 5 (not shown) having curved bifurcated ends (50) Fig. 5 (not shown). The bag forming sections are folded as described above by suction folding rollers 33, 34 and, if the side flaps are to be located on the outside of the finished bags, turn-over ploughs 38 for the side flaps are provided in the region of rollers 36. The completed bags are stacked by delivery discs 37.
Patent GB-1459933-A (GB)
Title: High vacuum molecular pump procedure and apparatus for wind measurement wherein the position or velocity vector of a meteorological observaton
IPC: F04D19/04
Filed: 1974-03-15
Abstract: 1459933 Molecular pumps COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 15 March 1974 [21 March 1973] 11673/74 Heading F1C In a high vacuum molecular pump comprising a cylindrical drum rotatably mounted in a cylindrical stator, either or both of the opposed cylindrical surfaces of the drum and stator are formed with helical grooves extending from an inlet zone at one end of the drum to an outlet zone at the other end. Each groove, e.g. groove 9 in the developed view shown, is sub-divided towards its downstream end by walls 15, 18, 19 into a number of channels 16, 17 and 20 to 23 to reduce leakage across the grooves and thereby improve the compression ratio. In an alternative embodiment, Fig. 3 (not shown), the groove is sub-divided into three channels by two walls of equal length.
Patent GB-754568-A (GB)
Title: Improvements in photoelectric control apparatus
IPC: H01H47/24
Filed: 1954-04-22
Abstract: 754,568. Light responsive control apparatus. GENERAL ELECTRIC CO. April 22, 1954 [April 23, 1953], No. 11694/54. Class 40 (3). A light responsive control apparatus comprises a resistor and photo-conductive device connected across the A.C. mains, in series with the winding of an A.C. relay which is shunted by a capacitor to form a tuned circuit resonant at the supply frequency, and a load connected in parallel across the supply through the relay contacts. In the first embodiment relay contacts 11 are normally closed and resistor 17 is connected in shunt across photo-conductive device 14 and winding 10 so that when the illumination of the cell increases the current sufficiently to operate the relay the current in the winding is further increased by the opening of this shunt circuit while a reduction of current follows relapse of the relay thereby preventing chattering. The inductance of the winding is greater with the armature attracted and capacitor 12 is chosen to give resonance with the armature in an intermediate position. Consequently when the armature is attracted in response to rising current the winding current is further increased to accelerate the relay action whereas when the armature is released the current falls so hastening the operation. The photo-conductive device is preferably a CdS imperfection free crystal, as described in Specification 685,027 or is of Ge. The load may be a lighting circuit which is thus controlled by the level of illumination. In a modification (Fig. 2, not shown), the contacts are normally open and the disposition of resistor 17 is different to achieve the same effect.
Patent GB-1246784-A (GB)
Title: Circuit boards
Inventor: KELEMEN DENIS GEORGE
IPC: H05K3/40
Filed: 1970-03-11
Abstract: 1,246,784. Ceramic laminates. E. I. DU PONT DE NEMOURS & CO. 11 March, 1970 [11 March, 1969], No. 11753/70. Heading B5N. [Also in Division H1] A multi-layer ceramic circuit board is made by forming holes at desired locations in at least one of a plurality of sheets, each comprising finely divided ceramic particles and a temporary binder therefor; filling the holes with a paste comprising non-oxidizable, gas-free precious metal particles and a temporary binder; forming patterns on selected surface areas of at least one of the sheets with a paste comprising non-oxidizable gas-free metal particles and a temporary binder; bonding the sheets into a laminate; and firing the laminate for a time and at a temperature sufficient to volatilize the binders and sinter the ceramic particles and metal particles into a manolithic structure. Alternatively, the holes may be filled with paste after the formation of the conducting patterns, either prior to or subsequent to the bonding of the sheets into a laminate. The required characteristic of the metal powder is that it is gas-free, i.e. it should not evolve gases during firing. Non-oxidizable gas-free platinum, silver or gold powders may be used. The ceramic sheets may be made of alumina, steatite, zircon, aluminium silicate, zirconium dioxide, titanium dioxide, beryllium oxide, magnesium silicates, or various combinations thereof. Suitable binders for the ceramic particles include polyvinyl chloride polymers, polystyrene polymers, polymethyl methacrylate resins, ethyl cellulose, cellulose acetate polymers, polyester polymers, and cellulose acetatebutyrate polymers. The binder is preferably used together with a suitable solvent, and also a plasticizer, a wetting agent and/or a deflocculant to enhance the sheet-forming characteristics of the ceramic slurry. The conducting pattern may be formed on the sheets by screenprinting. The ceramic sheets may be formed by spraying the sheet formulation on to a support, or an incompatible liquid, or by doctor-blading.
Patent GB-968182-A (GB)
Title: New basic phenoxazine derivatives
IPC: C07D413/06
Filed: 1963-03-26
Abstract: The invention comprises substituted phenoxazines of the general formula: <FORM:0968182/C1/1> wherein A represents a straight or branched alkylene radical containing 2, 3 or 4 carbon atoms, X represents a hydrogen atom or an acyl radical containing up to 3 carbon atoms and n is 1, 2 or 3, and acid addition salts thereof, and the preparation thereof by reacting a substituted phenoxazine of the general formula: <FORM:0968182/C1/2> wherein A has the above significance, Y represents an acid residue and X1 represents a hydrogen atom or an acyl radical containing up to 3 carbon atoms. The keto portion of which may be protected as a dialkylenedioxy group, with a substituted piperidine of the general formula: <FORM:0968182/C1/3> wherein "n" has the above significance and, if necessary converting the group denoted by the symbol X1 into the acyl radical, with dilute mineral acid, and by reacting a substituted phenoxazine of the formula: <FORM:0968182/C1/4> wherein X1 has the above significance, with a substituted piperidine of the general formula: <FORM:0968182/C1/5> wherein A, Y and n have the above significance and, when required, converting the group denoted by the symbol X1 into the acyl radical. For the production of the acyl derivatives of the first general formula above it is preferable to use starting compounds having a protected carbonyl group such as a dialkylene ketal group, and subsequently convert the protected keto group in the resulting 2-acyl-phenoxazine diethylene ketal to a keto group by treatment with dilute acid.  2-Acetyl -10- (3-chloropropyl)-phenoxazine diethylene ketal is prepared by reacting 2-acetylphenoxazine diethylene ketal and 1-chloro -3- bromopropane. Specification 850,334 is referred to.
Patent GB-826188-A (GB)
Title: Improvements in mercury arc rectifier-inverter equipments
Inventor: READ JOHN CARLEY
IPC: H02M7/00
Filed: 1957-04-12
Abstract: 826,188. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. March 26, 1958 [April 12, 1957], No. 12071/57. Class 38 (3). [Also in Group XXXV] A mercury-arc converter system for supplying a variable-speed D.C. motor is of the kind in which a common set of valves and transformer windings are employed for rectification to run the motor and for inversion during braking, and comprises two groups of anodes connected to two star-connected secondary windings 5, 6 displaced by 180 degrees and interconnected through an interphase transformer 7 which is short-circuited during inversion, the secondary windings being zig-zag connected. For braking a reversing switch 3 reverses the motor connections and short-circuits the transformer 7 through a switch 8. For running the motor in the reverse direction the transformer 7 is reinstated by throwing the switch 8. The zig-zag windings ensure that during inversion when commutation takes place between anodes 60 degrees apart the commutating reactance between these anodes and hence the angle of overlap is small. A 12-phase system is also described.
Patent GB-674281-A (GB)
Title: The treatment of aqueous liquids for protection against or destruction of biological contamination
IPC: C02F1/72
Filed: 1950-05-15
Abstract: 674,281. Water sterilizing. WALLACE & TIERNAN PRODUCTS, Inc. May 15, 1950 [June 14, 1949], No. 12088/50. Class 49. An aqueous liquid, e.g. the water of swimming pools or reservoirs, is protected against biological contamination, or such contamination already present is destroyed, by treatment with ozone in the presence of a bromide or iodide. For maintenance of a predetermined content of available bromine or iodine the liquid may be treated continuously or periodically with the ozone, preferably by withdrawing a portion of the liquid from the main body thereof, treating with ozone, and returning to the main body. To compensate for losses of available bromine or iodine by conversion of the halogen into a form other than halide, or by loss of or withdrawal from the body of liquid, bromide or iodide may be added periodically. Example 1 describes passing the water under treatment down a glass tower 5 cm. in diameter and 5 m. high, constricted at the bottom, at such a rate that the tower is filled with water all the time, adding to the water before it enters the tower a dilute solution of sodium bromide to provide 20 parts per million of sodium bromide in the water, and introducing at the bottom of the tower 180 c.cm. per minute of air containing 35-40 mg. per litre of ozone. U.S.A. Specification 2,443,429 is referred to.
Patent GB-1113030-A (GB)
Title: Improvements in or relating to harness for personal wear
Inventor: BASNETT JAMES THOMAS
IPC: B64D17/22
Filed: 1966-03-21
Abstract: 1,113,030. Body harness. G.Q. PARACHUTE CO. Ltd. 20 Jan., 1967 [21 March, 1966], No. 12226/66. Heading A3V. A harness for personal wear e.g. by parachutists and industrial workers, consists of a main sling 11 on which the user can sit, as on a swing, a rear cross brace 12, 13, leg straps 14, 15, a chest strap 24, 25 and straps 50 for connecting the harness to supporting means, such as the rigging lines of a parachute, the harness being adjustable so that it can be fitted to people of differing sizes. The main sling 11 passes around bars of support members 20, 21 on the rear cross brace 13 and to which the support straps 50 are secured, the length of the main sling 11 being adjusted by buckles 30, 31 covered by sleeves 32, 33. The rear cross brace is formed in two parts 13, 14. The part 13 is H-shaped and is formed by straps 34, 35, 36, the straps 34, 36 having the support members 20, 21 at their upper ends and buckles 37, 38 at their lower ends. The second part 12 consists of a strap which passes from buckle 37, through loops 39, 40 on the main sling 11 and back to buckle 38, the strap 12 being adjusted by buckles 37, 38. The chest strap 24, 25 is connected to the main sling 11 by loops which pass around the sling 11, is adjusted by buckle 47 and can be released by a snap hook 26. The leg straps 14, 15 are fixed to the mid point of the main sling 11, are adjusted by buckles 16, 17 and are connected to the side straps of the main sling 11 by snap hooks 18, 19. A reserve parachute can be attached to links 28, 29 on the main sling 11.
Patent GB-1375294-A (GB)
IPC: A61B5/0235
Filed: 1972-03-16
Abstract: 1375294 Sphygmomanometers N PANZER 16 March 1972 [4 May 1971] 12266/72 Heading A5K A sphygmomanometer comprises an inflatable cuff 12, an air line 20 leading to the inflatable cuff, a pressure gauge 18 communicating with the cuff via an air line 16, a bulb 24 having a bleed valve 22, a tube 26 secured between the bulb and an air line 20 and provided with a channel 28 which has a constructed throat 30, and a secondary tube 32 providing communication between the throat 30 and the surrounding atmosphere. In use when air is propelled from the bulb through the channel to inflate the cuff, the acceleration and consequent pressure drop caused by the throat, e.g. a venturi throat, causes entrainment of additional air from outside the tube 26 through. the tube 32 so that inflation of the cuff requires fewer compressions of the bulb. The secondary tube may be provided with bores 34 which can be closed by a slidably mounted sleeve valve 38. The angle of convergence of the channel in a section 60 is greater than that in a section 62, and the inside diameter at the ends of the tube is at least equal to that of the air line. Typical values are for the angles of convergence to be respectively 25-30 and 5-8, for the inside diameter of the ends of the throat to be 3mm, and for this diameter to be 3-4 times that of the throat. This results in entrainment of approximately three times as much air through the tube 32 as is propelled through the throat by the bulb. When the bleed vavle 22 is opened to allow air to pass from the inflatable cuff, air is entrained through the tube 32 so that air loss from the cuff is slowed down and a more accurate reading obtained from the gauge. The material of the tube 28 may be either plastics or aluminium.
Patent GB-216165-A (GB)
Title: Method and apparatus for transmitting heat from one liquid or gaseous fluid to another
IPC: F28D11/02
Filed: 1924-05-19
Abstract: 216,165. Heijkenskj÷ld, G. O. W. May 19, 1923, [Convention date]. Plate apparatus.-In apparatus for transferring heat between liquid or gaseous fluids through a rotating partition complete separation of the fluids is effected. Discs 21 which bear radial ribs 32 for preventing fluid from following the rotation of the partition, are attached to a fixed shaft 20 and are enclosed in casing 23 which are mounted in end bearings 25 and adapted to be rotated as by a pulley 28. One fluid, for example hot gases, passes through a conduit 24 and the other, for example, feed water is caused to flow through the casings. Provision may be made for axial adjustment of the positions of the discs.
Patent GB-478928-A (GB)
Title: A process for stabilising highly viscous products obtained by polymerisation of fatty oils
IPC: C10M159/08
Filed: 1937-04-29
Abstract: Non-drying and semi-drying oils, polymerized in the presence of boron trifluoride, are stabilized before addition to lubricants by the addition of 5 to 300 per cent (or, preferably, 50 to 300 per cent), of a lubricating-oil or grease.  The addition may take place before, during, or after working up the polymerizate.  In examples (1) soya bean oil, (2) a mixture of rapeseed and sunflower oils, (3) a mixture of rapeseed and cottonseed oils is polymerized in the presence of boron trifluoride, repeatedly washed with 96 per cent ethyl alcohol and the alcohol removed by distillation.  The polymerizates were mixed with an equal part, half a part, and two parts of lubricating-oil, respectively. Specifications 428,993 and 465,825 are referred to.
Patent GB-1077431-A (GB)
Title: Asphaltic bitumen roofing composition
Inventor: NIELSEN CARL LOUIS
IPC: C08L95/00
Filed: 1966-03-21
Abstract: An asphaltic roofing composition comprises, in weight per cent based on the total of the basic components (1), (2) and (3): asphalt (1), 45-75; resinous chlorinated polyphenol (2), 15-35; and block copolymer (3), 10-30. Asphalt (1) is (a) straight run asphaltic bitumen of viscosity at 210 DEG  F. of 350-450 SSF, or (b) blown asphaltic bitumen of softening point 110 DEG -185 DEG  F., or a mixture of (a) and (b). Chlorinated polyphenol (2) contains 30-65 weight per cent Cl.  (3) may be (i) a block copolymer having general formula A-B-A, wherein each A is an independently selected polymer block of a vinyl substituted aromatic hydrocarbon, and B is a polymer block of a conjugated diene; or (ii) a hydrogenated derivative of such a block copolymer, or (iii) a mixture of (i) and (ii).  The average M.W. of A is 8000-45,000, and of B is 40,000-125,000, the total A content of (3) being 23-40 weight per cent.  The composition may comprise 10-250% by weight, based on (1) + (2) + (3), of a filler, e.g. whiting and asbestos.
Patent GB-312772-A (GB)
Title: Improvements relating to the mounting of pulleys employed in the tape driving of spindles in ring spinning and doubling frames
IPC: D01H1/241
Filed: 1928-04-27
Abstract: 312,772. Blomley, F., and Tweedales & Smalley (1920), Ltd. April 27, 1928. Spindle-driving apparatus. -The tension or jockey pulleys of the spindle. driving tapes of ring spinning and doubling frames are carried in brackets pivotally mounted about an axis a<1> radial to the pulley in the pivoted supporting- arm A, and secured in one or the other of two positions determined by the ends of a slot a<2>, Fig. 5, so as to be adapted to the run of the belt for twist or weft. The axis a<1> may be in the central plane of the pulley or to one side of it. The arm A is mounted on one or the other of two longitudinally-spaced hoops b on its pivot shaft B according to the twist or weft adjustment of the pulley. In the working position the axis a<1> is inclined to the horizontal at about 45‹.
Patent GB-580308-A (GB)
Title: Improvements in foot-operated air-pumps
IPC: F04B33/00
Filed: 1944-06-29
Abstract: 580,308. Air-pumps. HARRIS & SHELDON, Ltd, and WOOTTON, E. H. June 29, 1944, No. 12365. [Class 8 (i)] In a foot-operated air-pump comprising an oscillating cylinder 1 and reciprocating piston 9 actuated by lever 5 raised automatically by a compression spring 11 the latter is housed within the hollow piston rod 8. The spring abuts the inlet end of the cylinder interior wherein it is provided with a guide spindle 13.
Patent GB-275532-A (GB)
Title: Improvements in electric incandescent lamp
IPC: H01K9/04
Filed: 1927-05-09
Abstract: 275,532. Andersson, R. P. A. May 9, 1927. Multiple-filament lamps.-In bulbs of the kind wherein a filament-selecting switch is located inside the cap, the switch is positioned by a projection 12 adapted to be engaged in the stemtube 8 of the bulb and by a central spindle 13 engaged in the central external contact 28. The moving contact of the switch may comprise a plate 19, Fig. 1, slipped radially on to the spindle 13 and secured positively by a projection on a spring washer, or a member engaging with contacts arranged over a cylindrical surface, as shown in Fig. 5, or a finger 58, Fig. 7. The spindle may be turned by an external disc 29, Fig. 1, or by a screw-driver slot 52, Fig. 5, or by a radial arm 60, Fig. 7, secured to an external ring 64 rotatable on the cap. A ring 25 of cement secures both the cap and the switch to the bulb.
Patent GB-494951-A (GB)
Title: Improvements in or relating to liquid fuel injectors for internal combustion engines
IPC: F02M47/02
Filed: 1937-05-01
Abstract: 494,951. Valve gear ; fuel injectors. ATTWOOD DIESEL EQUIPMENT CO., Ltd., GORDON, H., and ATTWOOD, S. H. May 1, 1937, No. 12499. [Classes 7 (iii) and 7 (vi)] A liquid-fuel injector valve 8 controlling a nozzle orifice 3 leading from a recess 10, which is continuously supplied with fuel through pass. ages 11,12 in the valve stem, is closed by the fuel pressure acting on the upper end 15 of the valve stem, and opened by fuel pressure when admitted through a passage 19 to the underside 21 of an enlarged piston portion 17 of the valve stem. A light closing-spring 16 is also provided. Leak. age past the enlarged portion 17 escapes at 23. Fuel may be supplied to the cavity 13 above the valve stem by pumps constructed as described in Specification 494,952, [Group XXVIII], and to the passage 19 by means of a fuel-distributing valve as described in Specification 494,953. The fuel injection may be automatically controlled in accordance with the engine speed as described in Specification 494,954, [Group XXIX], and all may be combined in a single unit as described in Specification 494,955.
Patent GB-113234-A (GB)
Title: Improvements in Controlling Springs for Doors and the like.
Inventor: LILLY JOSEPH
IPC: E05F1/10
Filed: 1917-09-05
Abstract: 113,234. Lilly, J. Sept. 5, 1917. Operating doors by springs.-Relates to ccntrolling springs for doors of the kind having an arm which makes sliding contact with the door. According to the invention, the bracket for securing the spring to the door frame is preferably made in two parts, one comprising the spring-container 2 and an extension 6 by which it is secured to the. door frame, the other 7 being a separate piece carrying the pivot bearing 8 and adapted to be secured to the door frame. The arm is made in two parts which are detachable at 21 to allow the arm 11 to be employed for tensioning the spring by turning it around the spring axis, the bracket part 7 being formed separate so as to allow of this turning movement. The bearing pin 10 is secured to the arm by a removable pin 17 which fits into one of a series of holes, by which means also adjustment of the tension can be effected. The bearing pin may be formed with a capstan head 30, Fig. 8, if desired. A washer 26 and cross pin 27 secure the bearing pin 10 in position longitudinally. The spring arm may act to open the door if the roller 22 is arranged to operate in a bracket piece 31 constructed as shown in Fig. 9.