baber/WOPTO huggingface dataset:
Patent GB-570299-A (GB)
Title: Improvements relating to thermionic valve voltage and/or current regulators
IPC: G05F1/52
Filed: 1943-09-06
Abstract: 570,299. Rectifying alternating current. BRITISH THOMSON-HOUSTON CO., Ltd., and MOIR, J. Sept. 6, 1943, No. 14515. [Class 38 (ii)] The output voltage of a rectifying arrangement is stabilized by using as the rectifying element a grid-controlled high vacuum valve 2, the grid of which has impressed upon it the voltage drop across a resistance 7 connected in series with an auxiliary grid-controlled valve 6 and glow discharge tube 4 across the output terminals, the grid of the auxiliary valve being connected to a tapping on a potentiometer 8 connected across the output terminals. Current stabilization also may be effected by connecting a resistance 10 in series with the valve 2 so that the voltage applied to the grid of the latter is caused to vary with load current. A full-wave rectifying arrangement is described with reference to Fig. 1 (not shown). In a further modification. Fig. 2 (not shown), a screen grid valve is used, the screen grid being supplied with raw A.C. Specifications 438,521 and 547,588 are referred to.
Patent GB-556540-A (GB)
Title: Improvements in rifling machines
IPC: B23D5/02
Filed: 1942-10-17
Abstract: 556,540. Rifling gun-barrels. SCHWEIZ INDUSTRIE-GESELLSCHAFT, Oct. 17, 1942, No. 14570. Convention date, Oct. 4, 1941. [Class 83 (iii)] A machine for rifling a gun-barrel 2 has the cutter head (not shown), operated by a draw bar 5 having a helical groove 8 of the same lead as the rifling to be cut. In one form the bar 5 is secured to the piston 4 of a hydraulic operating- cylinder 3, the supply from a pump 6 being controlled by a valve 7. The grooved bar 5 passes through packing arranged in a member 9 and comprising elements 14, 15 complementary in shape to the grooved bar. A closing cap 18 has a further packing element 23 and provides chambers 19, 20 for returning leakage past the gland 13 to the sump 22. The groove in the bar 5 engages a pin 10 fixed to the frame 1 to impart rotary movement to the cutter head. The Specification as open to inspection under Sect. 91 describes also a modification, Fig. 5 (Cancelled), in which the draw bar is operated by a screw 33 running in a nut 36 which is driven by worm gearing 35 from a motor. The screw has a helical groove 37 of greater depth than the thread, the groove 37 coacting with a fixed pin to impart the required rifling movement to the cutter head. This subject-matter does not appear in the Specification as accepted.
Patent GB-259509-A (GB)
Title: Improvements in electrically driven locomotives
IPC: B61C9/40
Filed: 1926-06-09
Abstract: 259,509. Marks, E. C. R., (Swiss Locomotive & Machine Worsk). June 9, 1926. Electric locomotives.-In machines in which the motors 1, 2 project above the floor 10, from which they are separated by a gap to allow relative movement on curves, plates 14 are secured to the motors to cover the gap.
Patent GB-1397474-A (GB)
Title: Method for forming the bell end of a bell and spigot joint and an assembly for use in the method
IPC: B29C57/04
Filed: 1973-03-27
Abstract: 1397474 Grooving pipe ends JOHNS-MANVILLE CORP 27 March 1973 [31 March 1972] 14635/73 Heading B5A [Also in Division F2] A rubber gasket 24 and PVC support rings 26 are positioned on a mandrel 36 which is lubricated and/or heated. The end of a PVC pipe is heated to the range of thermoelastic deformability, and pushed over the mandrel 36 until one support ring 26 engages a mandrel collar 60, and the pipe end engages a mandrel end ring 56. External pressure and/or suction through a mandrel cavity 46 are applied. After cooling, e.g. by a cooling fluid, the pipe is pulled from the mandrel; the gasket 24 rides up a mandrel ramp 44 so that it and the support rings 26 remain within the moulded pipe groove 20. The pipe may be inserted on to, and removed from, the mandrel by apparatus as described in Specification 1,157,929.
Patent GB-903071-A (GB)
Title: Improvements in fluid-flow control devices, particularly for use with washing machines
Inventor: ARAM ERIC HAROLD GEORGE
IPC: D06F34/22
Filed: 1958-05-07
Abstract: 903,071. Automatic control systems for washing machines. MANLOVE, ALLIOTT & CO. Ltd. May 7, 1959 [May 7, 1958], No. 14644/58. Class 38 (4). Washing fluid is bled from a washing machine and agitated, the amount of lather so formed being utilized to automatically control the supply of soap or detergent to the washing machine. In Fig. 1 washing fluid is bled intermittently or continuously from a washing machine (not shown) through a pipe 12 into a cylindrical vessel 14 supported by one end of a pivoted beam 24 having a counterbalance weight 28. The fluid in vessel 14 is agitated by a stirrer 16 driven by a constant speed electric motor 22, and the amount spilt over the upper edge depends on the amount of lather formed. If the amount of lather formed is below a desired value the excessive weight of vessel 14 operates a switch 30 to increase or initiate flow of soap or detergent to the washing machine by controlling a valve (not shown). The power supplied to the electric motor or to a high-frequency vibrator for agitating the fluid may alternatively control the supply of soap or detergent.
Patent GB-1022919-A (GB)
Title: Temporary form support for concrete construction
IPC: E04G25/06
Filed: 1964-04-09
Abstract: 1,022,919. Shores. HICO CORPORATION OF AMERICA. April 9, 1964 [April 10, 1963], No. 14824/64. Heading E1E. A telescopic shore for a ledger 14 in concrete formwork comprises an inner H-section member 1 having slots 7 in its web, an outer tube 2 having near its upper end spirally-arranged pairs of aligned slots 5, and an interconnecting wedge 8 providing fine adjustment of the shore length. The wedge 8 is locked in position by a screw clamp 17, the wedge and clamp being retained by a chain and ring 16.
Patent GB-159443-A (GB)
Title: Improvements in driving gear for ignition magnetos
IPC: F02B67/00
Filed: 1920-06-01
Abstract: 159,443. Murray, T. B., and Albion Motor Car Co., Ltd. June 1, 1920. Magnetos, driving.-In a trip-gear for ignition magnetos, in which the element attached to the armature carries pawls one of which, at low speeds, falls gravitationally into engagement with a fixed detent to hold the armature against a spring drive until it is raised by pawl-releasing means, the parts are arranged within a fan-driving belt pulley. The armature shaft B, Figs. 1 and 2, is coupled to a drum C on the enginedriven sleeve D by a spring A and carries pawls G freely pivoted on arms F integral with the shaft. The pawl in the uppermost position, as shown in dotted lines, Fig. 1, drops into engagement with a fixed detent H on the framing J and retains the armature until a cam K on the driving member lifts the pawl and allows the spring to jerk the armature round. The cam is formed on the periphery of the drum C, the arms L of which carry the rim M for a fan belt. At high speeds, the pawls clear the detent H centrifugally and there is direct drive through the spring. In an alternative form, Fig. 3, the detent and cam of Fig. 1 are replaced by a detent N at one end of a short rotary shaft in the frame J, the other end of which carries a spring- pulley arm N<1>. When the torque of the driving spring A overcomes the spring P, the pawl is pushed out of the detent H and the trip rotation follows. In either arrangement, adjustment may be provided by forming the arms F on a plate S, Fig. 3, which has curved slots for the studs T that secure it to the shaft B.
Patent GB-883281-A (GB)
Title: Door hinging device which makes it possible to move heavy doors with a reduced effort
Inventor: HAGUET RAYMOND
IPC: E05D11/02
Filed: 1959-05-01
Abstract: 883,281. Doors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 1, 1959 [May 6, 1958], No. 14935/59. Class 20(3) [Also in Groups XXV and XXXIV] Each member of a pair of heavy doors, e.g. for a vault containing radioactive material, is provided with a hydraulic system for lubricating the hinges and withdrawing the bolts (see Group XXV) and comprises a framework of U-beams 21-26 covered on both sides by sheet metal plates 27 and lined with cast lead 29. A dust seal 35 is provided.
Patent GB-470034-A (GB)
Title: Improved safety razor
IPC: B26B19/26
Filed: 1936-05-27
Abstract: 470,034. Hair-clippers. FRAZER, F. A. May 27, 1936, No. 14951. [Class 131] A safety razor of the clipper-type comprises a curved blade 1 slotted transversely to provide arcuate cutting edges in the curved surface of the blade, a correspondingly slotted guard 2 within. which the blade 1 is normally mounted, and a comb device for guiding the hairs into the slots. The blade 1 is cylindrical and is forced against the bend of the U-shaped guard 2 by two spring-urged balls 8. The blade is given a reciprocating and turning movement by means of an eccentric pin 3 on the end of the shaft 5 of an electric motor mounted in the handle. The comb consists of a pair of toothed plates 13, the teeth 14 of which may be bent over the guard as shown in dotted lines in Fig. 3. These plates may serve to clamp the guard against the side walls of the base block 7 by the use of rivets or screws.
Patent GB-911734-A (GB)
Title: Prepayment meter
Inventor: HARRISON HERBERT GEORGE
IPC: G07F5/00
Filed: 1960-04-28
Abstract: 911,734. Coin-freed apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 17, 1961 [April 28, 1960], No. 14991/60. Class 27. A prepayment meter for controlling the time during which an electrical circuit is energized comprises a disc 17 which is set forward in one direction by the insertion of coins and is returned by an electrical timing motor through a ratchet-and-pawl drive 16, 19. An inserted coin, if not rejected as oversize by a coin slot 3 or as undersize by a reject slot 4, comes to rest on a lever 29 on a shaft 37 carrying a disc 34. An external knob 6 rotates the shaft 37 through an abutment 38 engaging an abutment 39 on a lever 40 on the disc 34 until they are disengaged by the lever 40 meeting a bolt 36. During this rotation, a spring 35 is stressed and the coin is raised in the passage 3 until it can fall down again on the other side of the lever 29 and act as a link between the lever 29 and a pawl lever 32 when the spring 35 returns the disc 34 and shaft 37 anti-clockwise. As the lever 32 tilts, a pawl 43 pivoted on it moves away from a cam surface 46 and engages a gear 45 on the disc 17 so that the disc is rotated one step clockwise. An abutment 22 is moved away from two gauged contacts 14, 15 and the timer motor and the circuit to be controlled are energized until the disc 17 is returned again by the timer motor. A cam surface 53 on the disc 17 operates a lever 51 to block the coin slot after the successive insertion of, say, five coins and numerals on a disc secured to the disc 17 indicate the amount of time paid for but not yet used. An indicator driven by the timer motor indicates the total time used.
Patent GB-529021-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R11/48
Filed: 1939-05-19
Abstract: 529,021. Power meters. SANGAMO WESTON, Ltd. May 19, 1939, No. 15008. Convention date, Nov. 28, 1938. [Class 37] A reactance of predetermined value is provided in the voltage circuit of a voltampere meter in order to shift the voltage component into a predetermined phase relation with the current component for a given range of power factors. Fig. 1 shows a thermal kilovolt-ampere demand meter having heating elements 14, 15 connected at one end 16 to one terminal of the secondary winding 18 of a current transformer 17. The other ends of the heating elements 14, 15 are connected to the secondary winding 20 of a potential transformer 21, the mid-tap 19 being connected to the other terminal of the secondary winding 18 of the current transformer 17. An adjustable or fixed reactor 28 is provided in the primary circuit of the potential transformer 21 in order to shift the voltage component applied to the heater elements into phase with the current component either exactly or approximately. In a modification, Fig. 2, the separate reactor is dispensed with and the potential transformer 21<1> has arms 31, 32 projecting inwardly from its core so as to provide a definite flux leakage and thereby cause a predetermined phase shift of the voltage applied to the heater elements 14, 15. A movable shunt 34 may be provided for adjusting the phase shift. Two. such instruments may be connected for measuring kilovoltampere demand on a three-phase circuit. Other types of meter, such as the induction type, may replace the thermal meter. U.S.A. Specification 1,673,919 is referred to.
Patent GB-135793-A (GB)
Title: An Improved Device for Holding the Blades of Safety Razors for use in Setting and Stropping.
Inventor: GRAY ANDREW THOMAS
IPC: B24D15/10
Filed: 1919-06-16
Abstract: 135,793. Gray, A. T. June 16. 1919. Razors. - A holder for safety-razor blades, to enable them to be set or stropped, consists of a tubular handle a having a slot b at one end, from one end of which extend two arms c turned over at the ends to form hooks. The blade e is gripped by the hooked parts passing through the usual holes in the blade. The holder may be made from a slotted and tongued sheet-metal blank, which is rolled and bent.
Patent GB-1134662-A (GB)
Title: Improvements in or relating to roller presses for the removal of water from clean wetwashing
IPC: D06F45/28
Filed: 1966-04-05
Abstract: 1,134,662. Wringers. H. F. ARENDT. 5 April, 1966 [7 April, 1965; 17 Nov., 1965; 16 March, 1966], No. 15156/66. Heading D1A. A wringer comprises at least two rollers 1,2 one of which is made up of several elastic compressed air vessels having smooth cylindrical surfaces. The other roller 2 is rigid and perforated and may comprise a vacuum container 4 connected to a vacuum pump. Instead of being perforated, roller 2 may be covered with a wire-mesh screen. Roller 1 is made from the body 34 of automobile tyres with a mass of rubber 35 vulcanised thereon and carried on wheels 8 mounted on a shaft 9 carried in bearings 10, 11 and having metal side plates 12. The wet washing is carried by conveyor from the washing machine to the wringer.
Patent GB-1136052-A (GB)
Title: Drying gas in compressed gas systems
IPC: B60T17/00
Filed: 1966-04-05
Abstract: 1,136,052. Drying gas in compressed gas systems. HANKISON CORP. April 5, 1966 [April 5, 1965; March 22,1966], No. 15191/66. Heading F1N. [Also in Divisions B1, F4 and G3] A compressed gas system comprises a compressor 51 supplying a receiver 28' through a drying tower 15' filled with desiccant material and provided with a dump valve 57 which when opened allows gas in the receiver 28' to flow back into the drying tower 15' through a restricted passage 26' and thus regenerate the desiccant before escaping to atmosphere. The dump valve 57 is opened when the receiver pressure is sufficient to operate a pressure switch 58. Operation of the switch 58 simultaneously opens the dump valve and stops the electric motor 50 driving the compressor 51. In an alternative arrangement (see Division G3), the dump valve and the compressor suction valve are opened by a predetermined pressure occurring in the receiver. The compressor output may be supplied to a refrigerated drying unit (78) Fig. 8 (not shown) before entering the desiccant tower. For details of the construction of the drying tower (see Division B1).
Patent GB-438607-A (GB)
Title: Improvements relating to folding stands, trestles, and the like
IPC: A61G17/04
Filed: 1934-05-22
Abstract: 438,607. Folding stands; trestles. HILL, E. B., 30, Darwin Street, Birmingham. May 22, 1934, No. 15207. [Class 52 (v)] [See also Group XXV]. A folding stand or trestle comprises an outer tubular frame a<1> of inverted U-shape with an intermediate cross-tube a<3>, and an inner tubular U-shaped frame b located beneath the intermediate cross-tube and connected therewith by a single central vertical pivot g with means for securing the frames in their open setting. The frames are formed of metal tubes of square cross-section with non-slip rubber feet c and the outer frame has on its upper cross-tube a<2> a row of buffers or cushions d. Midway within the intermediate cross-tube a3 is fixed a bearing block e with a central hole e<1> and a groove e<2> in its base and in the underside of the tube a<3>. Fixed midway of the inner frame b is a striking plate f with which engages a clamping screw g passing through the hole e<1> of the bearing block and provided with an actuating head g<1>. A spring h is provided within the head g<1>, and with the screw loosened the striking plate f clicks into the groove e<2> in the open position. By tightening the screw the frame is locked in this position. The striking plate may be replaced by a pair of ratchet discs.
Patent GB-1415134-A (GB)
Title: Preserving red colour in meats
IPC: A23L13/00
Filed: 1974-04-05
Abstract: 1415134 Preserving the red colour in meat ARMOUR & CO 5 April 1974 [23 April 1973 20 June 1973] 15231/74 Heading A2D The red colour in fresh raw uncured meat is preserved by incorporating into the meat 0.01 to 0.50% by weight of 3-hydroxy-2- methyl-gamma-pyrone, 3-hydroxy- 2 -ethylgamma pyrone or 5-hydroxy-2-methyl-gammapyrone. The meat may be comminuted and mixed with the gamma-pyrone. Alternatively, the gamma-pyrone may be applied in the form of an aqueous solution to the surface of the meat. The treatment of beef, sausage meat, pork and pork sausage is exemplified.
Patent GB-637952-A (GB)
Title: Improvements relating to powder mixing machines
IPC: B01F15/00
Filed: 1948-06-07
Abstract: 637,952. Mixing appliances. FOSTER, YATES & THOM, Ltd., and DOWELL, H. June 7, 1948, No. 15289. [Class 86] The rotating container a of a mixing machine is supported by hollow trunnions b which have spherical inner terminal portions f to facilitate the setting up of the trunnions at an angle to the walls k. The trunnions are located in the correct position with the spherical portion f received by an aperture in the wall and a flange g is welded to the portion f at h. The wall is then clamped between the flange g and an internal annular member i. Mixing blades e are carried for rotation about a shaft d which passes through the hollow trunnions b.
Patent GB-579986-A (GB)
Title: Improvements in the construction of electric dry cells
IPC: H01M4/06
Filed: 1943-09-17
Abstract: 579,986. Layer-type batteries. BURNDEPT, Ltd., RICHARDSON, R. P., and LEWIS, R. W. Sept. 17, 1943, Nos. 15299 and 17085. [Class 53] In a layer-type battery, the zinc or like negative electrodes 3 are of dish-form, are coated with carbon on the outside, and rest one within the other. They are insulated from one another by absorbent cardboard liners 10 which are inserted in the dishes after layers 8 and 9 of absorbent paper and starch respectively, which are impregnated with electrolyte. The liners 10 are formed from blanks which are cut away to facilitate folding and so that the liner does not buckle. The edges 11 of the liner are impregnated with paraffin wax, insulating varnish or pitch (see the second Provisional Specification) to seal them. The absorbent paper layer 8 could be extended to form the liner. Each dish holds a depolarizing lozenge 12 through which contact is made between the electrolyte of one cell and the carbon coating of the next. A space 14 round each lozenge receives gas given off from the cell. The battery assembly is completed by a steel dish 17 resting in the open end cell and having a contact tab 18, the assembly then being compressed and bound with tape and then sealed with insulating material such as polystyrene, which may unite with the varnish on the edges of the dishes 3. Alternatively paraffin wax may be used for sealing or a rubber or waterproof paper skin (see the first Provisional Specification) having holes through which electric contact can be made with each end of the assembly. Specifications 219,769, [ Class 39 (ii)], 482,363, 549,036, 554,926, 558,207, [Group IV], and 564,264 are referred to.
Patent GB-545323-A (GB)
Title: Improvements in pumps
IPC: F04B23/10
Filed: 1940-10-16
Abstract: 545,323. Radial cylinder pumps. AIRCRAFT HYDRAULIC APPLIANCES, Ltd., WYLIE, H. N., and GROVES, W. R. Oct. 16, 1940, No. 15331. [Class 102 (i)] In an inwardly-acting rotating radial cylinder pump in which the stroke is controlled by varying. the eccentricity of a track ring, partitions are provided in the space between the periphery of the ring and the adjacent surface of the pump casing to divide this space into compartments adapted to contain fluid at different pressures. In the form shown, the track ring 1 is pivoted about a knife edge 3 forming one partition,.the periphery of the ring diametrically opposite the knife edge contacts the pump casing 2 to form a second partition 8, whilst a third partition 5 is bolted to the casing on that side of an exit port 4 in the ring which is remote from the knife edge. The partition 5 can be by-passed by providing grooves 7 in the surface of the ring which are covered by the partition when the eccentricity is small and are gradually uncovered as the eccentricity increases. In one modification a relatively thick pad is secured to the partition 5, whilst in another the partition is fixed to the track ring and bears against the casing. The partition 5 may be made of metallic or non- metallic flexible material, it may be rigid and hinged, or be foldable and attached to both the ring and the casing. Specification 524,384 is referred to.
Patent GB-1481579-A (GB)
Title: Filtering installation
IPC: B01D46/00
Filed: 1975-04-15
Abstract: In the air duct (1, 2), which is entered by operating staff (18) in protective clothing, in addition to filter walls (4) containing activated charcoal there are also arranged filter walls (9) containing exchangeable suspended particle filter cells (10). In the duct side wall (1) are inserted gastightly tubular hatchway ports (12), through which the operator (18) can pass the contaminated filter cells (10) to a person (19) standing on the clean air side. The hatchway ports (12) are furnished on both sides with gastight interlocking doors (14, 15), where one interlocking door can only be opened when the other interlocking door is closed. On the clean air side is provided a multiple-grooved edge ring (16) for the gastight reception of plastic bags (17). The contaminated filter cell is transferred into the plastic bag (17) and is sealed on the clean air side by the operator (19) by welding. The filter cell (10) enclosed in a contamination-free manner can then be taken to the destruction site. <IMAGE>
Patent GB-355251-A (GB)
Title: Improvements in or relating to taping machines for electric cables and the like
IPC: H01B13/08
Filed: 1930-05-19
Abstract: 355,251. Covering cores by winding. CARPMAEL, A., 24, Southampton Buildings, London.-(Soc. Anon. Ing. V. Tedeschi & Co. ; 7, Via Montebianco, Turin, Italy.) May 19, 1930, No. 15387. [Class 109.] A machine for winding tape upon an electric conductor or other like body is provided with means for automatically maintaining the appropriate inclination of the tape as it is applied to the body. The tape 7 is guided by a pair of rollers 4, 5, one of which has a fixed axis, whilst the other, 4, turns upon an axis which is free to rotate in a plane parallel to the axis of the roller 5 and about a second axis which remains always tangential to the two rollers at about the middle point of their length. The roller 4 is mounted in a ring 3<1>, Fig. 12, rotatably mounted in a collar 3 which can be swung about a diametral axis. In a modification the roller 5 is replaced by a fork secured to the rotating ring 3<1>, the tape passing between the prongs of the fork. A device for ensuring that the tape is guided to the centre of the rollers 4, 5 comprises a sleeve 8, Fig. 7, having flanges 10, 101 between which the roll of tape is mounted and having left- and right-handed screw threads controlling the flanges 10, 10<1>.