baber/WOPTO huggingface dataset:
Patent GB-1370834-A (GB)
Title: Packaging machines
IPC: B65B43/10
Filed: 1972-02-21
Abstract: 1370834 Packaging machine TETRA PAK INTERNATIONAL AB 21 Feb 1972 [25 March 1971] 33530/73 Divided out of 1370831 Heading B5D [Also in Division B8] The machine described is the same as that described in Specification 1,370,831, but the claims relate to the jaws which seal the tops of filled packages.
Patent GB-752062-A (GB)
Title: Improvements in or relating to rotary exhausters and the like
Inventor: BARNES NEVILLE ADRIAN
IPC: F04C18/344
Filed: 1954-11-19
Abstract: 752,062. Rotary pumps. CLAYTON DEWANDRE CO., Ltd. Nov. 19, 1954, No. 33593/54. Class 110(2) [Aso in Groups XXIX] A rotary exhauster or the like of the radially outwardly sliding vane type similar to that described in Specification 752,061 has an adjustable inlet or vacuum reservoir connection, a relief valve, a non-return valve and a lubricant inlet all forming a sub-assembly to be mounted asa unit upon the stator casing. Air is drawn through the inlet 18, which is adjustable in position relative to the plug 19 screwed into a block 26, past a non-return ball valve 35 to the arcuate inlet port 24 and then discharged through the outlet port 47. When the vacuum rises above a predetermined value an adjustable spring loaded ball valve 28 is unseated and air at atmospheric pressure enters the inlet port 24 while the ball valve 35 is closed to maintain the vacuum in the inlet connection 18. The ball valve 35 may be replaced by a hemispherical valve (see Fig. 5, not shown), and may be made of synthetic rubber. A filter is mounted in the block 26 for the lubricant supplied to the bearings. Specifications 563, 454, 752,060, '752,063 and 752, 064 also are referred to.
Patent GB-1049856-A (GB)
Title: Improvements in or relating to digital counters
Inventor: NEWMAN JOHN DAVID
IPC: G06F7/68
Filed: 1962-08-31
Abstract: 1,049,856. Automatic frequency control systems. PLESSEY-U.K. Ltd. Aug. 23, 1963 [Aug. 31, 1962], No. 33600/62. Heading H3A. [Also in Division G4] Gating devices control the input to a predetermined number counter or frequencydivider to enable instantaneous re-setting. The counters (see Division G4-G6) may be used to control an oscillation generator to fine limits. A standard frequency F s  is divided at 2 by K, Fig. 1, while the oscillator frequency F 0  to be controlled is divided at 6 by N, the resultant values being controlled to be equal by frequency comparator 8 and phase comparator 9 acting on the oscillator. The frequency comparator is shown in Fig. 2. Pulses from 2 and 6 are applied to opposite sides of a binary device 13 which controls gates 14, 15. As long as pulses appear alternately on leads 3 and 7 the gates 14, 15 are closed to the passage of pulses on leads 11b, 12b, but when two pulses occur in succession on one or other lead 3 or 7 the second pulse finds its gate 14 or 15 open and passes through to step a counter 17 forwards or backwards and via a reactor set 18 to alter the tuning of the oscillator 4. To prevent errors due to slow operation of gate 14 or 15 due to pulses on leads 3 and 7 being too close, circuits 11, 12 widen the input pulses. If then the widened pulses overlap an inhibit circuit 21 prevents stepping of the counter 17. The phase comparator 10, Fig. 3, provides fine control of the oscillator. When the two inputs from 2 and 6 are in phase a unidirectional voltage of constant level is produced at 53. If the inputs are not in phase a saw-tooth waveform of a frequency proportional to the difference in frequency of the two pulse trains is produced.
Patent GB-1095607-A (GB)
Title: Improvements in or relating to an hoist
IPC: F16D59/02
Filed: 1966-07-26
Abstract: 1,095,607. Electric hoists. DRESSER INDUSTRIES Inc., July 26, 1966 [Aug. 25, 1965], No. 33679/66. Heading B8B. In an electric hoist comprising a frame 2, a motor shaft 8 on the frame and a brake 14, 15, 18 normally braking the shaft 8, a control shaft 20 normally in a neutral position is oscillatable in either direction to release the brake via a self aligning cam follower 44 and a brake actuator 34. The brake comprising a disc 18 splined to the motor shaft 8 and intermediate two discs 14, 15 rotationally fixed but axially movable relative to the shaft 8, is applied by the actuator 34 which pivots about points 35 under the force of a spring 47 and compresses the discs together. The cam follower 44 is a slack fit on the shaft 20 whereby it can align itself in diametrically opposed V- grooves forming a cam track on the end of the brake actuator 34. Oscillation of the shaft 20 in either direction by a lever and rope arrangement, causes the cam follower 44 to ride the cam track on the actuator 34 and pivot the same into the brake release position. Oscillation of the shaft 20 also operates a motor reversing switch 13 via a rack 31 and pinion 32. The direction of motor drive depends on the direction of oscillation of the shaft 20 which is returned to its neutral position by a spring 25 when the rope and lever arrangement is released.
Patent GB-630834-A (GB)
Title: Protective devices for three phase electric alternating current systems
IPC: H01H83/14
Filed: 1947-12-22
Abstract: 630,834. Protective cut-out systems; electromagnetic switches; thermal switches. ROTAX, Ltd., and BOURNE, W. G. Dec. 22, 1947, No. 33769. [Class 38(v)] A device for tripping open a three-phase circuit in the event of unbalanced phase conditions, comprises three U-shaped bimetal strips b, c, d connected in respective phases and supporting at points f an insulating rocker disc e controlled by a spring j and carrying a contact h which co-operates with an annular contact i. An electromagnet' k, controlled by the contacts h, i, has an L-shaped armature m supported by a spring blade n such that contacts o. p are normally closed and contacts q, r open. D.C. is fed to the terminals 2, 3 of the tripping and closing circuit, and the electromagnet 4 is. normally energized to hold the breaker closed. On unbalancedphase conditions the rocker e is tilted so that the contacts h, i are closed and the electromagnet k is energized to open contacts o, p, whereby the magnet 4 is deenergized and the breaker opens, the magnet k being held energized over closed contacts q, r to prevent automatic reclosure of the breaker when the normal condition of the device is restored. Reclosure is effected by momentarily opening a push-button switch 6 which permits'the armature m to return and complete the closing circuit of the magnet 4.
Patent GB-802549-A (GB)
Title: Modified amine-formaldehyde resin compositions
IPC: C03C25/34
Filed: 1956-11-06
Abstract: A synthetic resin composition comprises a mixture of 80 to 97 per cent by weight of a melamine-formaldehyde or urea-formaldehyde resin and 20 to 3 per cent by weight of a polymer of N-vinyl pyrrolidene having the general formula <FORM:0802549/IV (a)/1> wherein R and R1 represent hydrogen, methyl or ethyl. Monomers from which the polymers may be prepared comprise N-vinyl-2-pyrrolidone, 5-methyl-, 5-ethyl-, 3,3-dimethyl-, 3-methyl-, 4-methyl- and 4-ethyl-N-vinyl-2-pyrrolidone, and copolymers which may be utilized include those of N-vinyl-pyrrolidone and vinyl acetate, maleic anhydride, diallyl phthalate and acrylonitrile.  Mixture may be effected by direct admixture of solids or of aqueous solutions.  The composition may be used to bond glass fibres.  The Specification describes in detail the production of melamine- and urea-formaldehyde resins using sodium hydroxide as catalyst.  The urea-formaldehyde resin is prepared by first forming dimethylol urea from urea and formaldehyde, dissolving the dimethylol urea in formalin solution, heating to 80 DEG  C., and adding urea.
Patent GB-393938-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01H35/32
Filed: 1931-12-08
Abstract: 393,938. Retractive switches; actuation of switches. WHITING, W. G. P., 6, Woodford Villas, Mannamead, Plymouth. Dec. 8, 1931, No. 33993. [Class 38 (v).] In an electric switch comprising a collapsable bellows-chamber 4 on the fixed base of which one or more contacts 15, 15a are mounted, the other contact 13 being mounted on the movable end 7 of the chamber, the chamber is expanded to its normal inoperative position by a spring 24 and/or compressed air or gas and is made gas and/or liquid tight so that the switch is operable by gas and/or liquid pressure and also by mechanical means acting directly on a plunger 10 on the movable end of the chamber. The chamber is surrounded by a casing 2 having holes 12, 12a, 12b, 12c to permit fluid to act on the end of the chamber. The contacts 15, 15a are mounted on arms 16, 16a connected by a spring 17 and pivoted on pins 19, 19a in a support 20 carried by a platform 21 through which the insulated cores of a cable 22 are led into the chamber 4 which may be a corrugated copper cylinder. A cap 25 on the plunger 10 limits the collapse of the cylinder and for intensifying the pressure on the plunger when the switch is operated by fluid, the plunger may be fitted with a solid or hollow flange or flanges. In a modification, a rod 13, Fig. 2, secured to the plunger 10 has a pin-and-slot connection 19, 20 with a rod 17 supporting a contact spring 16, the rods being connected and normally held with the pin 19 central in the slot 20, by a spring 21. Flat springs 22, 22a secured to the rod 17 carry rollers 23, 23a for engaging notches 26 so that when the cylinder 4 is collapsed a quick make-and-break action is obtained.
Patent GB-212964-A (GB)
Title: Improvements in motor cycle driving belts
IPC: F16G5/08
Filed: 1922-12-15
Abstract: 212,964. Dunlop Rubber Co., Ltd., Paull, W. H., and Fellowes, F. Dec. 15, 1922. Belts. - Motor-cycle driving-belts have a central core 1 of indiarubber or a compound thereof vulcanized or unvulcanized surrounded bv one or more layers 2 of rubberproofed canvas and an outer covering 3 of indiarubber or a compound thereof, the whole being vulcanized. The central core may be hollow.
Patent GB-899061-A (GB)
Title: Improvements relating to shoe-drum brakes
Inventor: WALKER STANLEY
IPC: F16D65/09
Filed: 1957-11-02
Abstract: 899,061. Internal shoe-drum brakes. GIRLING Ltd. Nov. 3, 1958 [Nov. 2, 1957], No. 34273/57. Class 103 (1). [Also in Group XXV] A device for locating a brake shoe web 10, 11 in a position parallel to the brake back plate comprises a U-shaped spring 15 adapted to fit between the shoe web and the head 16 of a pin 17 anchored to the back plate 13 and passing through an opening in the shoe web, aligned central slots 20 being provided in the limbs extending in from their free ends to receive the pin and a transverse channel 21 formed in at least one limb 18, 19 to receive the head 16 of the pin 17 wherein the free end of the limb beyond the channel is inclined inwardly towards the other limb such that the spacing between the free ends of the limbs in the unstressed condition of the spring enables the free ends of the limbs to meet when pressed together before the spring is stressed beyond its elastic limit. The spring is removed by withdrawing the lower limb 19 away from the shoe web in a direction away from the pin 17 so as to cause the upper limb to slide out from under the head 16 of the pin.
Patent GB-339086-A (GB)
Title: Automatic flat-bottom unloading device
IPC: B61D7/08
Filed: 1929-11-09
Abstract: 339,086. Meyer, A., and Dierks, O. Nov. 9, 1928, [Convention date]. Tipping carts; dumping- carts.-A wagon body or floor is supported by pairs of collapsable struts which when selectively released allow the load to be discharged to either side. As shown, a bottom e is supported on pairs of struts l, m connected by joints n and rigidly secured together by pins passed through apertures o. The struts l are fulcrumed on a transverse bearer h at k and when the pins at one side are withdrawn the bottom collapses at that side under the pressure of the load to discharge it. The sides b are pivoted at c to the rigid end walls a and are connected together by a bar d. When the load is discharged the weight of the sides b tend to return the bottom to its normal position, when the locking pins may be inserted in the apertures o either manually or automatically.
Patent GB-624462-A (GB)
Title: Improvements in photographic materials containing dyestuffs
IPC: G03C1/83
Filed: 1946-11-22
Abstract: 4 - (o  - Anilido - D  - 2 : 4 - pentadienylidene)-1-phenyl-3-methyl-5-pyrazolone is prepared by refluxing together 1-phenyl-3-methyl-5-pyrazolone and glutaconic dialdehyde dianilide hydrochloride in ethyl alcohol containing triethylamine. 5-(o -Anilido-D -2:4-pentadienylidene)-3-methylrhodanine is similarly prepared. Pentamethine oxonol dyes are prepared by refluxing together (1) and (2) 4-(o -anilido-D -2 : 4-pentadienylidene)-1-phenyl-3-methyl-5-pyrazolone and N-methylrhodanine or thiobarbituric acid in pyridine containing triethylamine; and (3) to (5) 5-(o -anilido-D -2:4-pentadienylidene)-3-methylrhodanine and thiobarbituric acid, 1-(p-sulphophenyl)-3-methyl-5-pyrazolone, or N-phenylrhodanine.
Patent GB-1368991-A (GB)
Title: Apparatus for recovering the oil content of waste soluble oil  emulsions
IPC: C10M175/04
Filed: 1972-10-20
Abstract: 1368991 Recovery of oil from waste oil emulsions MIDLAND OIL REFINERIES Ltd 20 Oct 1972 [23 July 1971] 34681/71 Heading C1C [Also in Division C5] An apparatus for recovering oil from waste oil emulsions comprises a main tank 1 divided internally by a weir 4 to define a first reaction compartment 5 into which the emulsion is pumped and an oil receiving compartment 6; three reservoirs 10, 11 and 12 (Fig. 3, not shown) for receiving respectively emulsion breaking agent, acid and alkali, each reservoir having a valve 13; an impeller 14 for agitating liquids in compartment 5; and horizontal rails 7 extending across the side walls of tank 1 in compartment 5 which carry a skimming board to skim separated oil from the surface of liquid in compartment 5 over the weir into compartment 6. The emulsion breaking agent is Fe2(SO4)3, Al2(SO4)3 or CaCl2, and the pH of the emulsion is adjusted to about 2 by adding acid, e.g. H2SO4. After removal of oil the effluent remaining in the first compartment is agitated and neutralized with alkali, e.g. caustic soda, soda ash or lime, and the neutralized effluent drained away, the apparatus then being ready for a further batch of emulsion.
Patent GB-1011984-A (GB)
Title: Heterocyclic aminochloro compounds
Inventor: WEIDINGER HANS
IPC: C07C209/36
Filed: 1962-09-12
Abstract: Amino derivatives of heterocycles, defined as quinazolines, or quinazolines, pyrimidines and 1,3,5-triazines containing an aryl radical, which heterocycles contain one or two <FORM:1011984/C2/1> in which R1 is hydrogen or aryl, R2 is morpholino or aryl, R3 is chlorine, morpholine, aryl, arylamino, R4 is morpholine, aryl, arylamino, and the carbocyclic rings in the above formulae may be chlorine or methoxy substituted. Specified diluents preferred are water miscible, e.g. aliphatic ketones, cyclic ethers such as dioxan, groupings and wherein the amino groups are attached to a carboxylic ring, are produced by hydrogenating the corresponding nitro derivatives in a solvent or diluent in the presence of Raney nickel catalyst and of tertiary amines or stoically hindered secondary amines, the amount of hydrogen absorbed being that required to convert a nitro into an amino group, the hydrogenation being preferably conducted at 10 DEG  to 50 DEG  C.  Per se are claimed compounds of the general Formula I to VII: <FORM:1011984/C2/2> tetrahydrofuran, which may also contain water. Numerous detailed working examples of the process and named products are given. Specification 927,974 is referred to.
Patent GB-430246-A (GB)
Title: Improvements in and relating to ejector apparatus for producing vacuum
IPC: F04F5/46
Filed: 1933-12-11
Abstract: 430,246. Ejectors. KOBIOLKE, A. G., Gilderoy, and FITZPATRICK, A. W., Yarra Junction, both in Victoria, Australia. Dec. 11, 1933, No. 34848. Convention date, Jan. 20. [Class 71] In ejector apparatus for creating a vacuum, a conical nozzle 15 supplying the inducing water or other fluid is provided with an adjustable regulating cone 19 whereby a narrow annular aperture 25 is provided which supplies water in a finely divided state or film to a diffusion chamber 21 in a discharge nozzle 9 constructed as a Venturi tube. The cone 19 is hollow, and has grooves 26 arranged parallel or in spiral form to assist in creating a vacuum. The cone may be solid, bevelled or rounded at the outer end, or extended to form a double cone. One or more diffusion chambers 21 are provided. In the Specification as open to inspection under Sect. 91, a modified form of tapered and flanged nozzle is described whereby the deflector cone is dispensed with. In a further modification, the parts rotate and are of disc form. The outer hollow discs have curved peripheries and are carried by a hollow air supply spindle driven by a pulley. The interior discs are similarly shaped and are connected to a depending tube flared to receive a screw or propeller blades to raise the inducing- water. The deflecting-surfaces are of V- section ; the base is positioned in annular restricted openings of an annular diffusion chamber. This subject-matter does not appear in the Specification as accepted.
Patent GB-490666-A (GB)
Title: Improvements in and relating to filters
IPC: B01D33/00
Filed: 1936-12-18
Abstract: 490,666. Filters. ZWICKY, J. Dec. 18, 1936, No. 34862. [Class 46] A filter element 4 such as described in Specification 487,164 comprising gauze enclosed between two closely fitting perforated cylinders is cleansed, as the element rotates, by a reverse flow of liquid into an elongated nozzle 6, which is pressed by a spring 9 against a generator of the element. The casing has an inlet 1 and filtrate outlet 3. The nozzle 6 normally engages an imperforate strip of the element. The outlet from the nozzle is controlled by a valve 12 which is opened by a tappet 16 when the filter element is rotated by means of a handle 5 and a roller 15 engaging a cam 14 on the element is brought into contact with the tappet. A perforated pipe 23 for the supply of steam to aid in cleansing may extend within the element. A diaphragm 18 subject to the pressures within and without the element operates a visual or audible signal, e.g. a spring- wound bell 22, when the element requires cleaning. Alternatively, the diaphragm 18 may control a motor which rotates the filter. As shown in Fig. 4 the diaphragm is replaced by a piston 28 which operates a switch 27 controlling a motor 26 which rotates the filter element through a friction clutch. After a single revolution the switch is opened by an arm 31 engaging a notch in a cam surface 33, unless the pressure difference on the two sides of the piston is still sufficient to hold the piston in its outer position.
Patent GB-507400-A (GB)
Title: A spacing ring for clock lunettes
IPC: G04B39/00
Filed: 1938-11-30
Abstract: 507,400. Clocks. JUNGHANS AKT.-GES., GEB. Nov. 30, 1938, No. 34901. Convention date, Dec. 6, 1937. [Class 139] Bezels.-To accommodate clock. glasses of varying thickness, a glass e is held in the bezel b by a spacing ring d which has, at regular intervals, slots d<2>. By inserting a screwdriver in each slot, the corresponding, web d<3> is deformed till it reaches tho flange b<1> c,f the bezel.
Patent GB-816078-A (GB)
Title: Improvements in electric lanterns for outdoor illumination
Inventor: CLARKE MAURICE GEORGE
IPC: F21V29/15
Filed: 1956-11-15
Abstract: 816,078. Street &c. lamps. BRITISH THOMSON-HOUSTON CO. Ltd. Oct. 22, 1957 [Nov. 15, 1956], No. 34983/56. Class 75(4) [Also in Group XL(a)] In an electric lantern primarily for outdoor illumination such as street-lighting and comprising a plurality of tubular fluorescent-lamps mounted horizontally within a light transmitting vessel seated against the ingress of dirt and moisture, an electric fan effective during operation of the lantern provides a stream or streams of relatively cool air for cooling a small area of the wall of each lamp located at or near the top of the lamp enclosure so that liquid mercury within the lamp envelope will automatically locate itself at the cooled part of the lamp wall whereby its temperature and hence the gas and/or vapour pressure of the lamp can be controlled independently of the temperature of the major part of the wall and thereby to refrain the lamp from suffering a deterioration in light output due to increase in said pressure above a certain value. As shown, the cooling fan 16 is mounted together with the control gear for the several lamps 15 in an upper compartment 13 thermally shielded from the lamps and formed by inverted channel members 8 supported at its ends on lamp-holder mounting plates 7 tied together also by a tie bar 9, the supporting structure being hingedly secured on one side at 10 to the canopy structure 4, screw means 11 releasably retaining the other side to the canopy. The fan draws relatively cool air from the upper compartment 13 and projects it through ducts 17 on to small areas of the walls of the upper lamps. A plane reflector 12 extends over the entire length of the vessel 1 and coacts with the canopy structure 4 to define the enclosure 13 and thermally shield this latter from the lamps.
Patent GB-932604-A (GB)
Title: A machine tool feed control means
IPC: B23Q5/34
Filed: 1959-10-15
Abstract: 932,604. Lathe details. F. PETZOLDT. Oct. 15, 1959 [Oct. 30, 1958], No. 35012/59. Class 83 (3). A machine tool comprises a drive mechanism for moving a slide 95 through a lever 90, a control slide 11 moved rectilinearly by the mechanism and a cam 67 on the control slide engaged by a follower 83 connected with the lever. A cam 16 is rotated to move the tool slide 95 first at a fast approach speed and then at a feed rate. In an automatic lathe with two or more spindles having two or more such tool slides controlled simultaneously from one lever system, the template slide 11 carries two oscillating plates 65 carrying cams 67 to provide a working feed. The initial fast approach is provided by a cam 73 which moves a rack 72 to swing followers 71 upwardly, thus raising the plates 65. The approach movement is adjusted by the lever 90.
Patent GB-619860-A (GB)
Title: A new or improved garment support
IPC: D06F59/06
Filed: 1945-12-28
Abstract: 619,860. Drying frames. HARTLEY, S., and EVANS, D. R. Dec. 28, 1945, No. 35020. [Class 34(i)] [Also in Group VII] An internal garment support for preventing shrinkage during drying consists of a frame or profile member having suspension means including a pair of spring arms adapted to grip a clothes line or other support. A support for a sock comprises an open frame of wire or strip on which the upper ends after overlapping are bent parallel to each other at 14, the ends 15 being each fitted with a sleeve 16 circumferentially grooved at 17 to engage with a clothes line. The sleeves are moved apart by bending toward each other the two parallel portions 19 of the wire or strip, which are connected by a band 20. In a modification, the clip members 26, Fig. 3, have convex surfaces 27, the lower ends of which can be pressed together to cause the other ends to pivot outwardly, to allow the notches 28 to engage with a clothes line. The garment support may be made of sheet material.