baber/WOPTO huggingface dataset:
Patent GB-628222-A (GB)
Title: Improvements in or relating to stems for electrical devices
IPC: H01J9/32
Filed: 1947-09-23
Abstract: 628,222. Glass-to-metal seals. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 23, 1947, No. 25856. Convention date, Sept. 24, 1945. [Class 36]  Stems for electrical devices are made by heating an assembly comprising a glass flare 25, glass exhaust tube 26 and leads 23, 24, until the glass parts, are sufficiently soft for consolidation, pressing the glass parts around the leads, continuing the heating and repeating the pressing operation. The assembly is then annealed and an exhaust opening 84 blown in the flare. The apparatus for carrying out this process comprises a conveyer 12, rotatable about a shaft 13, and carrying a plurality of heads 19 for holding the stem assemblies. The conveyer is operated by a motor which drives a shaft 32 carrying a worm 33 meshing with a gear 34 on a driving shaft 35. The shaft 35 also carries a mutilated gear 37 so that the gear 38 which it engages is stationary for a considerable part of the operating time. The gear 38 is mounted on a shaft 39, the upper portion of which carries a member 41, a portion 42 of which engages slots 43 in a Geneva 16 mounted on the hub 15 of the conveyer 12. Mounted above the pressing station 44 are presser jaws 45, 46, pivoted to an arm 47 projecting from the shaft 13. The jaws are connected to a bracket 51 carried by a rod 56 reciprocating in the shaft 13 and operated by a lever 57 which carries a roller 62 adapted to engage frogs 65, 66 secured to a cam 64. A stem assembly is placed on a head 19 and successively indexed at stations 77, 78 where it is pre-heated, and then at station 44 where it is softened. The rod 56 is caused to descend by engagement of the roller 62 with the frog 65, thus causing the jaws 45, 46 to close on the stem assembly. The jaws then re-open and are closed again by the engagement of the roller 62 with the frog 66. The formed stem then moves to the station 79 where the exhaust tube is opened by a blast of air from a pipe 83, and the stem annealed before being removed from the machine. This process is stated to prevent over-oxidation of the leads, particularly when these are made of " Kovar " (Registered Trade Mark).
Patent GB-1218186-A (GB)
Title: Roll changing device for rolling mills and the like
Inventor: SHUMAKER CHARLES STORER
IPC: B21B31/10
Filed: 1967-06-05
Abstract: 1,218,186. Rolling. UNITED ENG. & FOUNDRY CO. 5 June, 1968 [5 June, 1967], No. 25866/67. Heading B3M. [Also in Divisions B5 and D2] A rolling mill, or a calender for processing paper, plastics or rubber, includes a pair of rolls 13, 14 which can be removed laterally from their housing, whilst a workpiece 5 is passing between the rolls but not being processed by them. To remove the rolls, the screwdowns 32 are released, a spacer 41 is placed between the chocks 15 and 17, and a latch 51 is shifted beneath a hook on the chock 16. The latch is carried on a C-shaped frame 43 connected by a pin 47 to a sled 36 supporting the roll assemblies. A piston-cylinder assembly 38 shifts the roll assemblies to the dotted position and simultaneously draws the frame 43 into the housing, but clear of the strip 5. A similar arrangement is described (Fig. 3, not shown) in which only the lower roll is provided with a driving spindle and in which the frame 43 is vertically adjustable.
Patent GB-773294-A (GB)
Title: Improvements in and relating to lawn mowers, hedge cutters and like devices
IPC: A01G3/04
Filed: 1955-09-09
Abstract: 773,294. Mowing machines; hedge-cutters. HAST, P. S. Sept. 9, 1955 [Sept. 14, 1954], No. 25917/55. Classes 6(2) and 6(3). In a vegetation-cutter, of the type having a fixed finger-bar 11 and a relatively reciprocable knife-bar 16 adjacent to it, both bars are constituted by a resilient metal band, that forming the finger-bar being mounted at its ends on the machine-frame 10 and having fingers 13, of sheet metal, fixed to it perpendicularly, the fingers having slots through which passes the knife-bar. The frame 10 is U-shaped and carries the finger-bar 11 across its open ends. Levers 19 carrying the knife-bar are pivoted at 20 to the frame and are connected by wires 22 to a disc 24 which is reciprocated by a motor or by landwheels (not shown). The band 16 is formed with teeth 17 which pass through slots in the fingers 13, the fingers being formed by pairs of sheetmetal pieces 13<SP>1</SP>, 13<SP>11</SP> secured one on each side of the band 11 to leave a slot. The forward ends of the pieces 13<SP>1</SP>, 1311 are welded together, in front of the slot. The band 16 is slightly thinner than the band 11, so as to slide freely in the slots.
Patent GB-700986-A (GB)
Title: Improvements in or relating to the treatment or temperature control of milk or otherliquid
Inventor: HUTCHINSON JOHN
IPC: A01J7/00
Filed: 1950-10-25
Abstract: 700,986. Milkcoolers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 25, 1951 [Oct. 25, 1950], No. 25990/50. Class 84. [Also in Group III A milking apparatus includes an air-tight churn 11 having a milk inlet pipe 12 and an air outlet pipe 13 connected to the top and bottom' respectively of a tank 18 which is connected to a vacuum pump for effecting the milking operation by a pipe 21. The reduced pressure in the tank 18 draws in milk through the pipe 20 which then flows to the churn 11 and also reduces the pressure in the churn causing air to enter the chum through an air inlet pipe 14 which is connected to the atmosphere through a restricted orifice in an air inlet control device 15. Air from the pipe 14 bubbles up through the milk and thereby effects agitation to facilitate heating or cooling of the milk. Specification 14340/14, [Class 86], is referred to.
Patent GB-1343844-A (GB)
Title: Valve
IPC: F16K1/36
Filed: 1971-04-19
Abstract: 1343844 Valves L CAZZANIGA 19 April 1971 [5 Sept 1970] 26072/71 Heading F2V In a valve having a cylindrical cavity 2, an annular seat portion 3 perpendicular to the axis of the cylinder, and an angled seat portion 4, the valve member 5 is encased in a resilient sealing member having a cylindrical portion 6, a toroidal portion 7 and a frusto-conical end portion 8, the outside diameter of the cylindrical portion 6 being slightly less than the inner diameter of the cavity 2. In operation, as the valve member is moved to obturate flow between inlet la and outlet 1b, firstly only the toroidal portion 7 engages seat portion 3. Thereafter, further movement of the valve member results in the toroidal portion being compressed and so in the cylindrical portion 6 being laterally expanded to engage the walls of cavity 2. Still further movement of the valve member results in the conical portion 8 engaging the seat angled portion 4. The sealing member is secured to the valve member 5 by projections 9, 10. In modifications (Figs. 2-4, not shown) the frusto-conical portion 8 of the sealing member is dispensed with, the sealing member is secured to the valve member in a different manner, and the uppermost portion of the sealing member is formed integrally with a diaphragm anchored at its periphery.
Patent GB-171554-A (GB)
Title: Improvements in electric power transmission
IPC: H02J3/04
Filed: 1920-09-11
Abstract: 171,554. Taylor, A. M. Sept. 11, 1920. Equalizing load on generator; distributing mains, arrangements of; system depending on the use of static transformers.-In existing threephase systems employing three or more three-core feeders, the bus-bars of these feeders are divided into three sections, each provided with one or more generators, and selected cores of the feeders are supplied with extra currents of the same frequency and phase as the main currents, but of higher voltage. The main station bus-bars B'B', Fig. 2, are divided into sections and connected to generators G<1>, G<2>, G<3> respectively, the neutral points of which are not earthed. The cores a, b, c of feeders A, B, C, connecting the bus-bars B<1>, B<1> with the sub-station bus-bars B<2>, B<2> are connected to the secondary winding of a transformer T' supplying current of the same frequency as the generators G<1>, G<2>, G<3> but of higher voltage. The transformer T<1> may be replaced by three transformers T<33> which also operate to maintain the generators in synchronism and equally loaded. The substation bus-bars B<2>, B<2> may be connected to direct-current bus-bars B<4>, B<4> through converters R<1> C<1>, R<2> C<2> which assist in providing a uniform load on the main generators.
Patent GB-264253-A (GB)
Title: Improvements in graders, sorters and like appliances
IPC: B07B1/52
Filed: 1925-10-20
Abstract: 264,253. Pessell, C. A., and Pessell, R. C. Oct. 20, 1925. Fixed sieves; sieves and screens, forms and construction of.-A screen for grading or sorting minerals, roots, fruit, &c. consists of spaced rods or bars arranged in two parallel series in different planes, the bars in one series being disposed intermediate the bars in the other series. The material is conveyed over the screen by a number of tine-carrying bars mounted on endless chains and means are provided for varying the a distance between the bars in the upper series and between the upper and lower series so as to vary the size of the grading openings. In the construction shown in Figs. 1, 3 and 4, the upper series of bars 5 are arranged in an inclined plane and, at their lower ends 13, are hinged to a transverse member of the supporting frame. The bars are made of angle section material, the horizontal part a of which is cut away about midway of their length leaving the upper parts 5<a> in the form of vertical slats the ends of which are connected by springs 16. The lower series of bars 17 are in the form of slats pivoted about a, transverse shaft 18 and disposed between the bars of the upper series. The means for varying the spacing of the bars consists of a transverse shaft 14 carrying a number of edge and face cams 15 which respectively determine the height of the bars 17 and the distance between the bars 5. Alternatively this adjustment may be provided at the lower end of the screen or at both ends. The material is deposited from a hopper 4 on to the lower end of the screen over which it is carried by a conveyer consisting of chains 8 passing round sprockets 9 - - 12 and carrying transverse bars 7 with tines 6. A rotary brush 20<a> mounted on a vertically adjustable shaft 21 may be provided for cleaning the material. The apparatus is supported by a frame 1, 2, 3 which may be mounted on a wheeled vehicle.
Patent GB-421360-A (GB)
Title: A process for producing white or coloured matt effects on artificial silk made from regenerated cellulose or acylated cellulose
IPC: D06M11/67
Filed: 1933-09-25
Abstract: Local white or coloured matt effects are produced on textile materials of regenerated cellulose or acylated cellulose artificial silk by precipitating locally thereon an insoluble colourless heavy metal salt of hydroferrocyanic or hydroferricyanic acid by printing the material with one of the reagents (a solution of a heavy metal salt or of a ferrocyanide or ferricyanide), treating the printed material with a solution of the other reagent, and, if coloured matt effects are desired, dyeing the material with a basic dyestuff.  The precipitation may be effected in presence of the basic dyestuff.  The penetration of the heavy metal salt into acetate artificial silk is assisted by the use of a sulphocyanide.  The following examples are specified. (1) A web woven from viscose artificial silk is printed with a paste containing British gum, zinc sulphate and the product of example (1) of Specification 371,144 from amyl alcohol and sulphophthalic anhydride and the printed material is dried, passed through an aqueous solution of potassium ferrocyanide at 50 DEG  C., washed and dried to obtain a white matt effect on a lustrous white ground.  (2) A similar web is printed with an aqueous paste containing British gum, zinc sulphate and Methylene blue and the printed material dried and further treated as in (1) to obtain a blue matt effect on a lustrous white ground.  (3) An acetate artificial silk fabric is printed with a mixture of British gum and zinc sulphocyanide solution and the printed material is dried and further treated as in (1) to obtain an effect similar to that of (1).
Patent GB-341980-A (GB)
Title: An improved construction of wringing machine
IPC: D06F45/00
Filed: 1930-05-23
Abstract: 341,980. Hand-wheels. WELLS, G. L., 132, Carbrook Street, Carbrook, Sheffield. May 23, 1930, No. 26421/29. [Class 80 (iv).] In order that a hand-wheel R, Fig. 4, which drives the shaft B<1> of one of the rollers of a wringer through reduction gearing may be lowered so that its rim lies below the top of the side frames J when it is desired to place a table cover in position, a radial slot L, Fig. 6, is formed in the hand-wheel so that it may be moved radially about the pin B on which it is supported. The hand-wheel is coupled to a sprocket-wheel A<3>, Fig. 4, which is rotatably mounted on the pin B adjustably supported by one of the stationary side frames J. The sprocketwheel is formed with a sleeve A<5> on which is formed a lug, not shown, which engages the radial slot in the hand-wheel. The hand-wheel is secured to the sprocket-wheel by means of a screw Z which engages the hub of the hand-wheel after passing through a plate W secured to the other end of the sleeve of the sprocket-wheel. By loosening the screw Z the hand-wheel may be lowered below the table top as shown in Fig. 1, the radial slot in the wheel sliding over the sleeve A<5>.
Patent GB-1391659-A (GB)
Title: Alarm system for breathing device
IPC: A61H31/02
Filed: 1972-06-07
Abstract: 1391659 Alarm system for breathing device SANDOZ Ltd 7 June 1972 [11 June 1971] 26484/72 Heading AST [Also in Division H1] An alarm system for a breathing device comprises a pressure chamber 4 connected at 6 to a gas flow line of the breathing device, an interval timer 8 operating in conjunction with a response mechanism 10 which is responsive to pressure changes in the pressure chamber, and an alarm actuated by irregularly timed pressure changes in the pressure chamber. The response mechanism 10 consists of a flexible diaphragm 14 exposed on one side to the interior of the pressure chamber 4, a ferromagnetic rod 16 displaceable with displacement of the diaphragm, and an interval timer switch 18. The timer switch 18 comprises a pivotable switch arm 24 which may move between a first contact 26 and a second contact 28 of the switch 18, the switch arm being biassed towards the contact 26 by a spring (not shown). The switch arm is moved by a magnetised bar 20 held by magnetic force on the rod 16 so that its position is adjustable. In operation the diaphragm 14 oscillates regularly dependent, for example on the patients breathing. If, however, for some reason the pressure in the chamber 4 becomes greater or less than the normal limits or remains stationary then the switching interval is altered so actuating the alarm via the timer 8. As an alternative to the diaphragm 14, a piston having its working face exposed to the interior of the pressure chamber may be used.
Patent GB-1418834-A (GB)
Title: Injector for introducing material into a mixing chamber
IPC: B29B9/00
Filed: 1973-06-04
Abstract: 1418834 Supplying material to a mixing chamber UPJOHN CO 4 June 1973 [6 June 1972 21 Dec 1972] 26577/73 Heading B1C In apparatus for use in introducing materials such as liquid components in the formation of moulded plastics materials, into a mixing chamber 4, there is provided an injector 1 which comprises an inlet port connectable to a supply of material under pressure, a nozzle for passing the material into the mixing chamber, a return port for any material not passed through the nozzle to pass to a reservoir a matched pair of valves consisting of an injection valve located between the inlet port and the nozzle and a return valve located between the inlet port and the return port, a control device for controlling the valves in synchronism such that the sum of the flow cross sections of the two valves is substantially constant and independant of the positions of the valves. In the embodiment described material is supplied to the injector 1 from a reservoir 10 by a pump 6 through a supply line 5 to a valve chamber in the injector which controls the flow of material passing through the nozzle into the mixing chamber 4. Closing of the injection valve 2a simultaneously opens a return valve 2b whereby the material by-passes valve 2a by way of a return port 8 to return line 7 and then to the reservoir 10. The characteristics of the valves 2a, 2b are so arranged that the pressure in the circuit remains constant. The valves are actuated by a common actuator which in Figs. 1 to 5 is a piston 2 operated by fluid pressure 9. In order to control the valves in relation to materials having differing flow characteristics an adjustable member 3 connects the seating 18 of the return valve 2b whereby the seating can be axially displaced with respect to the valve piston 2 so that the annular clearance between the valves 2a and 2b and their respective seatings can be varied in direct relationship to the material being used. In Figs. 1 and 2 the member 3 is thereably actuated and in Fig. 3 the seating is controlled by the initial setting of a treaded member 21 and subsequently by the combined action of fluid pressure and spring 26 between the seating and the member 21. In an embodiment described with reference to Figs. 4 and 5 (not shown), the adjusting member 21 is actuated by rack and pinion means which is itself controlled by pressure determined by the supply pressure. Figs. 6-7 not shown show alternative constructional details of the injector in which the material passing through the inlet and return ports 113 and 120' is controlled by the respective valves 106b and 105b respectively the valve 106b cooperating with a nozzle 106a which is exohangable. The valve parts may be hollow 111 to permit the return flow of material or the valves may have flats on their outer surfaces Figs. 8-10 (not shown) around which the material can flow.
Patent GB-289708-A (GB)
Title: Improvements in and relating to spool or cop cores for spool or cop dyeing
IPC: D06B23/04
Filed: 1927-10-10
Abstract: 289,708. Annicq, J. Oct. 10, 1927. Tubes or bobbins.-A supporting core for cops of textile material to be dyed in cops comprises a coil spring 2 covered by a lace, thread, or fabric 1 wattled or tressed as shown to form a practically plain surface. The covering 1 may be of material inert to the dye bath used, cellulose acetate may be used for example where cotton is to be dyed, or the covering may be of metal or like material inert to dyes.
Patent GB-923636-A (GB)
Title: Improvements in or relating to stripping mining devices guided along conveyors in underground mining
IPC: E21C29/00
Filed: 1959-08-05
Abstract: 923,636. Mining-apparatus. A. OELLRICH, [trading as MASCHINENFABRIK EISENGIESSEREI A. BEIEN]. Aug. 5, 1959 [Aug. 11, 1958], No. 26788/59. Class 68 (1). A stripping mining device 2 is guided along a conveyer 1 which is pressed towards the coal face, e.g. by compressed air cylinders, and the traction chain 3 is driven by a sprocket 4 driven by an hydraulic piston motor 6 through a reduction gear 6a, the motor and reduction gear being mounted on the conveyer 1 and connected by flexible hoses 7a, 7b to a drive unit consisting of an electric motor 8, clutch 11, hydraulic piston pump 9 and a reservoir 10 on which the motor and pump are mounted. As the stripper 2 and conveyer 1 are fed forward, the hoses 7a, 7b, or slightly shorter cables, pull the drive unit along over skids. The chain 3 is endless, the lower run being guided in a tube, and the reversal of the chain is effected by reversing the motor 6, e.g. by reversing the flow of oil through the hoses 7a, 7b by means of the regulator 12. The pump 9 is provided with a pressure regulator 13 which increases the pressure of the supply to the motor 6 as the volume of supply drops. This enables a temporary increase in the resistance to cutting to be overcome by a slow cutting speed without an increase in the power requirements of the motor 8.
Patent GB-1410096-A (GB)
Title: Cigarette filters
IPC: A24D3/16
Filed: 1973-06-05
Abstract: 1410096 Filters DEUTSCHE PHODIACETA AG 5 June 1973 [5 June 1972] 26830/73 Heading A2C  A cigarette filter is made from a fibrous tow and comprises aluminium hydroxide of which more than 80% has a mono-clinicpseudohexagonal crystalline platelet structure of specific surface area of 4-15 m<SP>2</SP>/g. A cellulose 2¢ acetate tow may be impregnated with hydragillite having such structure and properties and serves to remove both acidic and basic materials contained in tobacco smoke.
Patent GB-1516302-A (GB)
Title: Process control apparatus
IPC: F02D41/30
Filed: 1974-06-18
Abstract: 1516302 Control of fuel supply in IC engines LUCAS ELECTRICAL CO Ltd 12 June 1975 [18 June 1974] 26870/74 Heading G3N [Also in Division G4] Apparatus for producing a pulse width modulated signal, particularly for controlling fuel injection in an I.C. engine, comprises a memory ROM 1 which produces an n-bit digital signal in dependance on two independant digital input signals; a counter 20 which is pre-set to the m most significant bits of the ROM 1 output; a clock 22; a gate 23 controlling application of clockpulses to the counter; a delay circuit 26 controlling the gate; and a sampling circuit 28, 32-36 responsive to the other n-m bits of ROM 1 output to vary the delay, the output pulse width depending on the sum of the delay and the time taken for the counter to count clockpulses from the count preset by the m most significant bits to a predetermined count. Transduces 13. 14 deliver 7 and 8 bit words representing throttle angle and engine speed respectively. The three and four most significant bits respectively address ROM 1 which is a diode matrix type as described in Specifications 1422324 and 1431772. Interpolation according to the least significant bits is provided by adders 17, 18 and a ROM 2 as described in Specification 1422324. The counter 26 effectively inserts a 6 or 7 clockpulse delay between the start of an output pulse and counter 20 starting to count from the pre-set value. When counter 20 is full it ends the output pulse after a further delay by circuit 30 dependant upon battery voltage. To compensate for slower reaction of the injection valves when battery voltage is low. The speed of clock 22 may also vary according to yet a further engine parameter such as air or coolant temperature.