baber/WOPTO huggingface dataset:
Patent GB-446885-A (GB)
Title: Improvements in and relating to machines for blowing glass bulbs from tubing
IPC: C03B23/07
Filed: 1935-12-12
Abstract: 446,885. Glass manufacture. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 12, 1935, No. 34515. Convention date, Dec. 12, 1934. [Class 56] A machine for blowing glass bulbs from tubing comprises a turret rotatable about an horizontal axis, a number of heads carried by the turret and extending radially outwards, means for inserting in the heads lengths of glass tubing which are open at one end only, and means for heating the closed, projecting ends of the tubes and enclosing them in moulds. The machine is similar to that described in Specification 437,909 and comprises a turret 11 rotated step by step about an horizontal shaft and provided with four series of radial chucks or heads 10. In the first operating position, the heads are loaded with the glass tubes 12 from a hopper 41 by means of plungers 44. When the heads are loaded, the projecting closed ends of the glass tubes are softened by burners 70, while the heads are in rotation. The movement of the turret then carries the heads to the second position where the ends of the tubes are again headed by burners 72, and the softened ends are upset by slides 78 which are forced downwards by cams 89. In the next position of the heads, the ends of the tubes are again heated by burners 94, 97, and in the next position, the heated ends are enclosed in moulds 101 and are blown to shape by air supplied through the tubular shaft 69 on which the turret 11 rotates. After blowing is completed, the moulds are opened and the finished bulbs are dropped on to a conveyer belt 130.
Patent GB-195154-A (GB)
Title: Improvements in and relating to pumps
IPC: F04B9/14
Filed: 1921-12-22
Abstract: 195,154. Anderson, H. P. H. Dec. 22, 1921. Lever-actuated pumps.-In a double-acting pump the inlet and outlet valves 10, 11 respe-ctively, which are in the cylinder ends communicate with suction and delivery reservoirs 4, 4a formed by an outer tubular casing 2 and webs 3. To accommodate the valves, a double piston rod 13 is used, operated by a lever 27. In a modification the pivot 28 is adjustable by means of a screw to alter the stroke.
Patent GB-1380687-A (GB)
Title: Multispectral projection apparatus
IPC: G03B33/04
Filed: 1972-04-06
Abstract: 1380687 Projection apparatus SPECTRAL DATA CORP 6 April 1972 34586/70 Heading G2J Apparatus for projecting colour separation transparencies in accurate super position comprises multiple projection lenses 120, 124 each lens corresponding to one of the transparencies 35', 38', the lenses being mounted on individual microscope stages for adjustment independently to the X and Y directions to bring fiducial marks beside each of the pictures into coincidence. The pictures 35', 38' &c. and the fiducial marks are  formed in a staggered array on a common film 16'. A separate lamp 176, 180 and condenser 156, 158 are provided for each picture, intensity and hue of the illumination being separately variable. Half-silvered mirrors 162, 166 permit illumination of the transparencies by desaturation lamps 170, 174.
Patent GB-902160-A (GB)
Title: Improvements in windscreen cleaning systems
Inventor: DEIBEL RAYMOND AMANDUS
IPC: B60S1/48
Filed: 1958-10-29
Abstract: 902,160. Windscreen cleaners. TRICO PRODUCTS CORPORATION. Oct. 29, 1958, No. 34699/58. Class 138 (1). A windscreen washer wiper comprises a motor which drives a shaft capable of being connected to drive a windscreen wiper, a pump capable of drawing liquid from a reservoir and delivering it to a nozzle, and a coupling serving to transmit drive from the output shaft to the pump and capable of disconnection to permit the motor to operate the wiper without operating the pump. To operate the washer wiper when the wipers are not working, cable 48 is actuated by a button 92 (not shown) to cause the snap-action rotation of arm 47 and the joined parts 39, 6T and 44 (Fig. 11) anticlockwise. Portion 67 engages flat portion 63 of lever 61 and causes it also to rotate about pin 42 and depress switchbutton 64, closing switch 66 (Fig. 12). This makes a circuit from battery 93 through wire 112, switch 66, wire 113, field resistance 104 and coil 102, and also through wire 106 and the armature, the motor thus running at high speed. Also, the rotation of lever 39 rocks yoke 33 about its pivot on stationary arm 34, moving with it sleeve 29 and bringing tooth 28 into engagement with tooth 27. Shaft 23 driven from gear-box 25 and motor 24 has affixed to its end a sleeve 26 which drives the wipers through conventional cranks. The engagement of teeth 27 and 28 causes the eccentric 50 on sleeve 29 to be driven from shaft 23 and the reciprocation of piston-rod 52 and piston 69. Cleaning liquid is pumped into cylinder 71 via valve 74 and out to the windscreen through valve 76, and to chamber 84 via passageway 82, driving back diaphragm 87 against the compression of spring 88 and also moving rod 59 connected to lever 56 and spring 46. When this spring is moved over-centre it pulls lever 44 and joined parts clockwise with a snap action, disengaging teeth 27 and 28 due to the movement of yoke 33 and thus stopping the action of the pump. Switch 64, however, is unaffected because arm 68 is now in contact with part 61. The wipers continue to operate while liquid in chamber 84 returns via a controllable bleed valve 90 (not shown) and the return movement of rod 59, lever 56, and arm 68 eventually release switch 66 which becomes open-circuited, but the motor does not stop until parking switch 107 opens. The normal control of the wipers is by means of contact arm 97. When in the extreme position shown, the wipers are stopped; when in the position joining contacts 98 and 99 there is a direct supply via wire 101 to field coil 102 and the wipers operate at low speed whereas when 97 engages 99 only the wipers operate at full speed due to the restriction of current through the field coil by resistor 104. If button 92 is operated when wiping at low speed, normally closed switch 114 is opened by part 63 breaking the direct circuit to the field coil.
Patent GB-880879-A (GB)
Title: An improved washing, separating and grading machine for granulated material such as sand and gravel
Inventor: SOUTHALL THOMAS JOSEPH
IPC: B03B5/02
Filed: 1958-10-30
Abstract: 880,879. Washing granular materials. HARDY & PADMORE Ltd. Nov. 30, 1959 [Oct 30, 1958], No. 34760/58. Class 82 (2) A washing separating and grading machine comprises a tank containing water, a feed hopper, a vibratory frame supporting a flat, tilted screen for vertical vibration, the screen being submerger and arranged so that the upper part, below the hopper, has a smaller mesh than the lower part, and compartments below the screen each associated with an elevator to remove the underpass from each screen and the material passing over the larger mesh. As shown feed, from hopper i is supplied to screen h<SP>4</SP>, h<SP>2</SP> submerged in tank a and vibrated by eccentric h<SP>1</SP> upon springs h<SP>3</SP>. The feed is separated into three fractions which fall into compartments e, f and g from which they are removed by conveyers b, c and d. Flanges h<SP>5</SP> on the screen co-operate with dividing walls f<SP>1</SP> and g<SP>1</SP>. The base of the tank a is of V section.
Patent GB-201842-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D1/06
Filed: 1922-12-21
Abstract: 201,842. Drysdale & Co., Ltd., Drysdale, J. W. W., and Young, J. Dec. 21, 1922. Multi-stage pumps; casings; leakage-preventing devices.-A two-stage pump for withdrawing liquid from vessels under high vacua, such as condensers and the like is constructed so as to prevent air-locks. The liquid flows into the eye k of the impeller a, thence up through the passage e to the second-stage impeller b and through a chamber to the delivery pipe d. The pump is so disposed that the liquid tends to gravitate towards it from the condenser, which is connected to the inlet pipe p at the point of highest vacuum. A chamber t above the suction port c is in communication with the condenser by a balance-pipe q and with the eye of the impeller a by passages r, u, v for the return of any air drawn in from the condenser. The pressure at the eye of the impeller b is preferably above atmospheric. The pressure in the chamber f seals the shaft bearing against air-leakage. The casing is split vertically through the axis of rotation.
Patent GB-774432-A (GB)
Title: Artificial stone and building elements and process for their manufacture
IPC: C04B2/00
Filed: 1954-12-02
Abstract: An aqueous suspension of hydrated lime is treated with carbon dioxide under conditions whereby water is progressively removed as formation of carbonate proceeds, such water removal being controlled so that the mixture is not dry before all the hydrate has been converted to carbonate and during the treatment the water content, which at the beginning is 30-120 per cent (relative to dry hydroxide), is lowered to 1-10 per cent of the carbonate formed.  The term hydrated lime includes high-calcium, magnesian and dolomitic hydrated lime and chemically precipitated hydroxide. In the examples, a gas containing carbon dioxide is passed over a mixture of lime and other materials moulded to the desired shape for an extended period of time.ALSO:Artificial stone building elements are obtained by reaction of carbon dioxide with an aqueous suspension of hydrated lime, with or without aggregate, under conditions whereby water is progressively removed as the carbonate formation proceeds, the water removal being controlled so that the mixture is not dry before all the hydrate has been converted to carbonate, and during the process the water content which at the beginning is 30-120 per cent (relative to dry hydroxide) is lowered to 1 to 10 per cent of the carbonate formed.  The term hydrated lime includes high-calcium, magnesium and dolomitic hydrated lime and chemically precipitated hydroxide.  Wood, straw, rock wool and asbestos may be included, and for light weight elements specified expanded materials can be added or foam or aluminium powder.  The elements may be re-inforced with or without prestressing.
Patent GB-764483-A (GB)
Title: Process for cleaning textile fabrics and fibrous materials in sheet or web form such as desizing, scalding and/or bleaching
IPC: D06L4/30
Filed: 1953-12-16
Abstract: Textile fabrics or fibrous materials in sheet or web form are impregnated with a liquid which will react chemically with an impurity in the material and the wet material is passed continuously in flat condition through a chamber having a heated, drying atmosphere of sufficient intensity to raise the temperature of the treatment liquid rapidly to a high value and cause its very rapid evaporation, and the treated material is then washed.  The material treated may be card or paper or textile fabrics of cotton, linen, silk, rayon or artificial fibres.  The treatment liquid may be an aqueous solution of soda lye, sodium hypochlorite or a mixture thereof which may include a wetting agent.  The heating chamber may be maintained at pressures below or slightly above atmospheric and the heating may be effected by directing high speed streams of a heated, inert gaseous mixture or a mixture of superheated steam and an inert gas against the material.  After leaving the heating chamber the material may be acidified and washed with soap and water.
Patent GB-346455-A (GB)
Title: Improvements in or relating to apparatus for aerating and/or mixing liquids
IPC: B01F3/04
Filed: 1930-01-13
Abstract: 346,455. Mixing liquids and gases. JONES, W. N., 132, Church Street, Maryville, Tennessee, U.S.A. Jan. 13, 1930, No. 35444. Divided on 346,815. [Class 86.] Screw blades 13 driven by a motor 11 rotate in a space formed by cut-away portions of vertical baffles 15. They are surrounded by a cylinder 20 which is capped by a conical ring 27, above which is a baffle 25. Liquid or gas to be mixed with the liquid in which the blades are immersed is drawn in along pipes 23 having bevelled ends 24. The various parts are mounted in a derricklike frame 7 forming a complete portable unit. Any required number of such units may be used together in a tank, stream, sewer or the like.
Patent GB-522284-A (GB)
Title: Improved display stand
IPC: A47F7/16
Filed: 1938-12-05
Abstract: 522,284. Tables &c. SHIPWAY, S. P., and WHITBYS, Ltd. Dec. 5, 1938, No. 35444. [Class 52 (iii)] A display stand for rugs &c. comprises a platform 1 on legs 2, 6, and a clamping bar 14 adjustably secured along one edge, as by eyes 13 in rods 12 sliding in the uprights 8 of the legs 6 with spring pegs 15 engaging in holes 11. A bowed stiffening bar 9 may connect the uprights.
Patent GB-876415-A (GB)
Title: Improvements in or relating to undervoltage sensing circuits
IPC: G05B1/02
Filed: 1959-10-20
Abstract: 876,415. Protective arrangements. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 20, 1959 [Oct. 27, 1958], No. 35454/59. Class 38 (5). [Also in Group XL (c)] An undervoltage protective arrangement comprises means connected to each phase of a polyphase system for providing a signal voltage when the corresponding phase voltage is above a predetermined value, and transistor means controlled by the signal voltages for providing an output signal in the absence of any one of the signal voltages. In Fig. 1 there is connected to each phase voltage-dividing resistors 2, 3, a rectifier 4 and a potentiometer 5, and the resulting unidirectional voltage signals normally bias rectifiers 7 to their non-conducting condition so that the bias applied to the base of a transistor 11 from a source 8 causes the transistor to conduct. Under these conditions no voltage is applied across a capacitor 13. If the voltage of any phase falls below the predetermined value, the corresponding rectifier 7 is " unblocked " so that current can flow from the source 8 through the rectifier to earth causing the transistor to become non-conductive. The resulting output signal appearing at the collector of the transistor charges the capacitor 13 until the breakdown voltage of a Zener diode 14 is reached and a control device 15 is then operated. The device 15 may be a relay, a flip-flop circuit or an amplifier. Fig. 2 (not shown) illustrates a modified circuit in which a transistor is associated with each phase.
Patent GB-814813-A (GB)
Title: Variable resistor
Inventor: DAILY ARTHUR M
IPC: H01C10/36
Filed: 1955-12-09
Abstract: 814,813. Variable resistors. CHICAGO TELEPHONE SUPPLY CORPORATION. Dec. 9, 1955, No. 35480/55. Glass 37. A variable resistor of the rotary type comprises a length of resistance wire wound toroidally around a strip of insulating material curled into a hoop with the opposite ends thereof abutting, a terminal tag for each end of the winding having a U-shaped portion formed therewith and embracing the respective end of the strip and riveted thereto so as to make contact with the end of the wire and a further short insulating strip overlying the abutting ends of the strip and retained in position by the terminal tags and supporting a further terminal tag connected electrically to a sliding member making electrical contact with the resistance wire. The resistance wire and terminal assembly is mounted within a metal casing having an inner layer of insulating varnish; by virtue of the close contact between the resistance element and the casing the resistor has good heat-dissipation properties. Fig. 5 shows the resistance element 20 with terminals 31 riveted to the ends of the resistance winding and also embracing an insulating strip 33 on which is mounted a terminal 40. Contact ring 18 having legs which rest on the front surface of the casing 4 when the resistance assembly is mounted therein, is attached to terminal 40. As shown in Fig. 1, a contact 16 attached to a disc 22 driven by the shaft 9 makes contact with the ring 18 while further contacts 19 also attached to the disc 22 and connected to the contact 16 make contact with the inner surface of the resistance element 20. Also attached to the disc 22 is a plate 23 having a forwardly bent portion 24 which limits the rotation of shaft 9 by engaging with a piece 25 bent in from the front surface of the casing 4. A rearwardly bent portion 26 engages with the operating member of a switch 8 attached to the rear wall of the casing to actuate the switch during the rotation of the shaft. The front wall of the casing is provided with forwardlybent portions 14, Fig. 5, which hold the resistor against rotation relative to the surface upon which it is mounted and an indentation 50 which engages a slot 51 in the insulating strip 33 to hold the resistance assembly against rotation within the casing.
Patent GB-1269376-A (GB)
Title: Dyeing process
Inventor: BUECHELER PAUL
IPC: D06P3/54
Filed: 1969-07-15
Abstract: 1,269,376. Dyeing semi-synthetic and synthetic materials. SANDOZ Ltd. 15 July, 1969 [29 Aug., 1968; 12 Nov., 1968], No. 35561/69. Heading D1B. [Also in Division C4] Fibres and textiles of semi-synthetic and synthetic textile materials, e.g. linear aromatic polyesters, polyamides, polyolefins cellulose di- and tri-acetates are dyed with an aqueous dispersion of a dye of formula I: in which both R symbols separately represent hydrogen, halogen, cyano, nitro, hydroxyl, optionally substituted alkyl, alkoxy, alkanoyl, benzoyl, alkanoyloxy, alkoxy carbonyl, aminocarbonyl, alkanoylamino, alkylsulphonyl, alkylaminosulphonyl or phenyl, n is 0 or 1 and the molecule is free of carboxylic acid and sulphonic acid groups.
Patent GB-523600-A (GB)
Title: Improvements in or relating to the control of hydraulic or other fluid-pressure operated presses
IPC: B30B15/22
Filed: 1938-12-07
Abstract: 523,600. Pneumatic single-stroke apparatus. MILLS, J. E., MILLS, R. G., JENKINS, J. DAVIES-, and OWEN, T. F. Dec. 7,1938, No. 35672. [Class 8 (ii)] [Also in Groups XXIX and XXVI] A hydraulic or other fluid-pressure press used for the assembly of components having a relative interference fit is fitted with a control valve 3 electrically operated in such a manner that the movement of the ram 4 is arrested if a load is required higher than a predetermined value or lower than a predetermined value. The valve 3 is maintained open by the energization of a solenoid 5 in a circuit 2 which comprises push buttons 7, 8 and switches 9, 14, 18, the switch 9 being in parallel with the switch 14. The switches 14, 18 are controlled by a pressure gauge 15 and the switch 14 is normally open, but is closed at a pressure corresponding to the " low " predetermined pressure, and the switch 18 is normally closed but is opened at the high pressure limit. When the button 7 is operated to close the circuit and the ram 4 descends, an adjustable tappet rod 10, which is supported by a sleeve 13 on the ram 4 controlled by springs 13a, 13b, acts on the switch 9 to open the switch. The control valve is operated to stop movement of the ram at this time ; (a) if the low limit switch 14 has not closed owing to the reaching of the predetermined low pressure ; (b) if the high limit switch 18 has opened. When the push button 7 is operated to close the circuit 2 a switch 19 in parallel therewith is operated by the solenoid 5 to maintain the circuit closed.
Patent GB-744455-A (GB)
Title: Improvements in shock-resistant plastic compositions
IPC: C08F236/04
Filed: 1953-12-23
Abstract: A butadiene-styrene-acrylonitrile terpolymer is prepared by polymerizing monomeric butadiene in the presence of a polymerization catalyst at below 60 DEG  C. to form a polymer having a specific viscosity of at least 0.3, adding a mixture of monomeric styrene and acrylonitrile and polymerizing until the resultant resin has a composition of from 23-41 per cent butadiene, 10-30 per cent acrylonitrile and 29-67 per cent styrene.  This resin has a brittle point temperature below - 20 DEG  C. and a stiffness modulus at 30 DEG  C. of at least 50,000 lbs. per square inch.  The polymerization of the butadiene may be taken to 75 per cent conversion and the unreacted butadiene distilled off. The second polymerization may take place at 30-90  DEG  C. in aqueous emulsion, to substantial completion under a nitrogen atmosphere using a persulphate as catalyst.  Emulsifiers (sodium oleate), viscosity control agents (tertiary hexadecyl mercaptan) and the usual polymerization ingredients, may also be present. Specification 658,301 is referred to.
Patent GB-381410-A (GB)
Title: Improvements in or relating to milling and like machine tools
IPC: B23C1/027
Filed: 1931-12-28
Abstract: 381,410. Machine framings. EISELE, F., 220, Reinsburgstrasse, Stuttgart, Germany. Dec. 28, 1931, No. 35785. [Class 83 (iii).] Milling- machines.-The vertical main and auxiliary tool slides embodied in some types of milling, grinding and like machines are connected below the work table by a brace to form a rigid, substantially, U-shaped structure laterally adjustable on the bedplate of the machine. The invention is more particularly concerned with Lincoln-type milling-machines in which main and auxiliary slides 25, 6, Fig. 1, carrying the cutting arbor 19, are arranged for transverse movement relative to the work table 2. A hollow brace 4, integral with the upright 3, passes underneath the table and is suitably connected to the auxiliary upright 5 ; the brace and uprights slide over a common inclined or stair-like guide surface provided on the bed. The auxiliary upright may be disconnected and removed, in which case the member 4 acts as a bracket for the single main upright. More than one brace to connect the uprights may be used.
Patent GB-1019560-A (GB)
Title: Improvements in dental treatment apparatuses
IPC: A61C17/00
Filed: 1962-09-20
Abstract: In a dental instrument the pressurized air supply is used to direct a stream of liquid into a tooth cavity and simultaneously to create a suction for withdrawing fluid from the cavity.  The body portion 23, Fig. 2 (not shown), supports a liquid medicament chamber 12 communicating with the air supply tube 19 through a duct 24, and a suction chamber 13 which communicates through a hollow stem 42 with the suction side of a Venturi arrangement 40 through which a jet of air is directed from a nozzle 36.  The liquid medicament, being under pressure of the air supply; passes upwards through a vertical tube to a duct 29, Fig. 5 (not shown), and thence to a narrow bore tube 101, by which it is directed into the tooth cavity.  A second fine tube 1011, having its outer end immediately adjacent that of the tube 101, communicates through a duct 35 with a second vertical tube leading into the chamber 13, Fig. 2 (not shown), and thus withdraws fluid from the cavity into the chamber.  If desired, screw down valves may be fitted in the ducts 29, 35 to stop either the liquid stream or the suction and an additional air port may be associated with the former to produce a spray instead of a continuous stream.