baber/WOPTO huggingface dataset:
Patent GB-222547-A (GB)
Title: Improvements in and relating to apparatus for the simultaneous reception and re-transmission of radio-telephone signals, applicable to the automatic control of sub-stations from a main broadcasting centre
IPC: H04B7/155
Filed: 1923-06-27
Abstract: 222,547. Sharman, A. W. June 27, 1923.. Relaying or repeating systems.-A substation is automatically controlled from a main broadcasting station by radiation from the latter, thereby dispensing with the necessity for using a connecting land line. The incoming signals are received at the sub-station on a frame or open aerial 1 connected to an amplifier 2 and rectifier 3, the output of which is passed through the primary winding of a modulation transformer 4. The secondary of this transformer is connected at AB across the grid and filaments of a control valve 5 which modulates the output of a power valve 6 coupled to the transmitting aerial 11. Interference between the incoming and outgoing signals is prevented by using two frequencies separated by a difference of at least three per cent on wave-length.
Patent GB-646504-A (GB)
Title: Improvements in or relating to automatically variable delivery reciprocating pumps
IPC: F04B1/14
Filed: 1947-06-24
Abstract: 646,504. Swash-plate. pumps. ROUSTAN, J. G. June 24, 1947, No. 16689. Convention date, Feb. 13, 1945. [Class 102(i)] [Also in Groups XXIX and XXXV] A swash-plate pump comprising a swashplate 9 on a rotatable driving shaft 1 adapted to assume a variable angle therewith and carrying, through bearings 12, 13, a non-rotatable disc 14 adapted to reciprocate a number of parallel pump pistons 15 in. cylinders 16 concentric with the shaft, the swash-plate being provided with trunnion projections 7 engaging in inclined grooves 6 in rotatable sliding gear 4 which is moved along the shaft to vary the inclination of the swash-plate and is controlled automatically by a device operating according to a predetermined junction of the delivery pressure. In one embodiment, the pressure liquid acts on a piston 34, to move a fork-lever 5 engaging the gear against a spring 35a, through a fluid pressure servomotor control system (see Group XXIX). In other embodiments the lever 5 may be moved by either opposed electro magnets or by a reversible electric motor through a lead screw (see Group XXXV). The swash-plate which is adapted to rock about a stub shaft 10 may be provided with a part spherical bearing washer for taking the axial thrust whilst the disc 14 may be positively prevented from rotating by an arm thereon engaging in an arcuate groove in the pump casing. In another embodiment the inclination of the swash-plate may be reversed for reversing the flow. Liquid is distributed to and from the pump cylinders by means of a rotary valve 20 of which several forms are described. Two pumps may be driven from the same driving motor. The Specification as open to inspection ,under Sect. 91 refers to the swash-plate being controlled manually. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1012773-A (GB)
Title: Method and apparatus for completing wells
IPC: E21B33/122
Filed: 1963-04-29
Abstract: 1,012,773. Wells &c. BAKER OIL TOOLS, Inc. April 29, 1963 [May 8, 1962], No. 16708/63. Heading E1F. A well packer A having a releasable lock 100 (Fig. 3b) adjusted to prevent silting of the packer is lowered into a well, a tubular string D extending from the top of the well is connected to the packer, the string is stressed sufficiently to set the packer, a wellhead 180 (Fig. 13) is installed and connected to the string, and the lock is released so that the energy stored in the string sets the packer. The packer A comprises a packing structure 20, slips 57, tubular members 12, 13 and a guide 17. A packer P is set in the well above a formation Z (Fig. 11), the packer A with a tail pipe 150 is lowered into the position shown in Fig. 11, and the string D is latched within the part 16 of the member 13. The string C is held in tension whilst compressive stress is applied to the string D. The wellhead is connected to the strings whilst maintaining the stresses in the strings, and fluid is pumped down the string D to remove drilling mud from the well. The lock is released by pumping a ball 131 down the string D with sufficient pressure to shear a screw 129 and force a sleeve 122 from behind the latch fingers 117 of a support sleeve 111. The energy stored in the string D then moves the sleeve 111, and the member 13, together with rings 14, 21, 22, downwardly relative to the rest of the packer to set the packing and slips so that the formations Z, Y may be produced through the strings C, D respectively. The packer A may be retrieved by removing the wellhead, pulling on string D to retract the packing and slips and disconnect the string D from the packer, and raising the string C with the packer A and tailpipe. After the string D has been removed from the packer A which is unset in the well, a further string D may be pressed downwardly into the part 16 of the packer to connect the string and set the packer.
Patent GB-423006-A (GB)
Title: Improvements in stock drenching instrument
IPC: A61D7/00
Filed: 1934-06-05
Abstract: 423,006. Delivering measured quantities. JECT-IN, Ltd., 27, Hunter Street, Sydney; Australia.-(Assignees of Kauzal, G. P. ; University of Sydney, Sydney, Australia) June 5, 1934, No. 16714. Convention date, June 6, 1933. [Class 102 (i)] A drenching appliance foi animals, comprising a barrel 2C containing a plunger 3 actuated by a trigger 24 in a " pistol - grip " stock 23, is char. acterized by the provision of a dose. adjusting device, comprising a sleeve like stop 38 adjustable longitudinally behind the plunger by rotation of a disc 31 at the rear of the stock. The disc 31 is secured to a spindle 33, rotatable in a sleeve 34 and carries a pin 37 engaging a helical groove 40 in the sleeve 38. Rota. tion of the sleeve 38 is prevented by longitudinal extensions thereon en gaging open-ended slots in the sleeve 34. The disc 31 has a grooved edge engaged by a spring detent 32 or a spring plunger or ball catch. The plunger 3 is connected to the forked inner end 39 of the trigger 24 by a pivoted crosspiece 29 and a pair of links 27 and is normally held in its rearward position by a spring 25 secured to the trigger, and to the stock 23. The appliance is charged by gravity through a spring-pressed valve 45 in a ported cross sleeve 46 in the forward end of the barrel 3, the sleeve being connected by a flexible tube 44 to a reservoir which may be a knapsack carried by the operator. Pressure on the trigger 24 forces the charge past a valve 49 and out through the nozzle 52. The longitudinal position of the stop-sleeve 38, as set by the disc 31, determines the extent of withdrawal of the plunger 3 on release of the trigger, and hence the volume of charge drawn into the barrel for the succeeding injection. The inner end of the sleeve 38 may carry a screw and lock nut for fine adjustment of its action.
Patent GB-1007418-A (GB)
Title: Method and apparatus for perforating plates for subsequent metallization
Inventor: KATZERA HANS
IPC: B26F1/00
Filed: 1964-04-22
Abstract: 1,007,418. Burnishing. H. KOLBE and H. KOHLER, [trading as FUBA WERK ELEKTRONISCHER BAUTEILE UND GERATE, HANS KOLBE & CO.]. April 22, 1964, No. 16738/64. Heading B3X. [Also in Division B4] A method of perforating an electrically insulating plate for subsequent metallization includes the steps of punching the perforations and smoothing the surfaces of the perforations before metallization, by a planing process effected in the same direction as the punching operation. An apparatus for carrying out the method comprises a die 2 which has dieopenings 3 and 4 and a peripheral cutting edge corresponding to the desired shape of the plate 5 and which co-operates with a cutting die 1. The punch unit comprises a plate 7 in which are mounted punches 8 and 9, and a guide plate 10, the whole unit being slidable in a member 6. The smoothing punches 8<SP>1</SP> and 9<SP>1</SP> are mounted in a plate 7<SP>1</SP> and pass through a guide plate 10<SP>1</SP>. The smoothing punch unit is interchangeable with the perforating punch unit. A set of burnishing punches, Fig. 6, may be mounted in a similar way to the perforating and smoothing punches for additionally smoothing the holes by compression.
Patent GB-110963-A (GB)
Title: Improvements in Window Casings or Sash Frames.
IPC: E06B1/34
Filed: 1916-11-22
Abstract: 110,963. Brill, Co., J. G., and Heulings, W. H. Nov. 22, 1916. Window frames; vehicle windows; window holders for sliding sashes.-A window casing or sash frame comprises a post 1, an exterior sheetmetal covering 8 secured thereto, and a removable interior sheet-metal covering 10 having one or both sides flexible and provided with flanges 13 which interlock with flanges 9 on the outer covering, and clips 15 which engage loops 7 on the post 1. One or two sash grooves 16 are formed on each side of the covering 10, the single grooves being used when the invention is applied to vehicles; the sashes can be removed by depressing the flexible sides of the covering, and the pressure on the sashes may be regulated by a spring 21 and screws 22. The sashes may be held when in the raised position by a spring bolt which engages a hole in the flexible covering; or the sash groove may be formed with a corrugated rach 19 and the sash provided with a corrugated spring pawl 20, or vice versa. Grooves 24 may be provided for a curtain-rod.
Patent GB-1305571-A (GB)
IPC: F16H61/433
Filed: 1970-04-08
Abstract: 1305571 Driving trailer wheels; hydrostatic transmissions SUNDSTRAND CORP 8 April 1970 [2 June 1969] 16772/70 Heading B7H [Also in Division F2] A hydrostatic assist drive in a tractortrailer vehicle comprises a variable displacernent pump 25 which is driven by the tractor engine 12 and connected through flexible conduits 29, 30, 31 to a motor 26 coupled through a one-way clutch 58 to a two-speed axle 21 on a trailer or dolly. The axle ratio is selected by a pneumatic actuator controlled by a range control 63 linked to a vehicle speed sensor 64 so that the axle gears are shifted from low to high ratio when a predetermined speed is reached and are shifted into neutral when a second higher predetermined speed is reached or when a main transmission 14 driving the tractor axle 17 is shifted into a high or reverse ratio. The pump 25 is driven from a p.t.o 39 through a clutch 42 which is actuated by control means 44 linked to the range control 63 and speed sensor 64 so as to be disengaged when the second predetermined speed is reached or when a high or reverse transmission ratio is selected. The displacement of the pump 25 is controlled by a torque control 54 linked to the throttle control 51 of the engine 12 and arranged to maintain the pressure in the supply line 29 to the motor 26 proportional to the throttle position so that the assist drive effort is a constant proportion of the total tractive effort. The torque control 54 reduces the pump displacement to zero during axle gear ratio shifting, and includes a dashpot for delaying a reduction in pump displacement upon a sudden closure of the engine throttle 51 so that the assist drive remains operative during ratio changes in the main transmission 14.
Patent GB-576970-A (GB)
Title: Improvements in apparatus for rendering saline water potable
IPC: B01J47/00
Filed: 1941-12-30
Abstract: 576,970. Cans ; stoppers. PERMUTIT CO., Ltd., PEMBERTON, R. T., and HOLMES, E. L. Dec. 30, 1941, No. 16798. [Classes 66, 125 (i) and 125 (iii)] [Also in Group I] A container 1, in which sea or other saline water may be shaken with granular material to render it potable, e.g., as described in Specification 576,969, [Group I], comprises rigid detachable end caps 2, 11, provided with a drinking spout 9 and a vent 12 respectively, and a filter paper or pad 6 arranged so that only filtered liquid can pass through the spout. As shown, the filter pad 6 is clamped between the screw cover 2 and a flange 4. When not in use, the cover 2 may be reversed to protect the spout. The vent 12 may be provided with a stopper or a non-return valve, preferably a slit rubber disc 13. Spare cartridges of granular material and filter pads may be stored in the container. Alternatively, the filter pad may be clamped in the cap 2 by a separate detachable element. The Provisional Specification states also that identical caps, each provided with a spout, may be fitted.
Patent GB-612778-A (GB)
Title: Improved apparatus for heating with masut or the like
IPC: F23D11/44
Filed: 1946-06-03
Abstract: 612,778. Vapour burners. HEYNDERICKX, F. M. J., and SELIFFET, F. June 3, 1946, Nos. 16813 and 16814. Convention dates, Oct. 19, 1945 and April 30, 1946. [Class 75 (i)] A liquid-fuel burner apparatus comprises a U- shaped vaporizing tube 3 connected to a lower U- shaped burner tube 1 formed with apertures 2 for the emission of flames playing directly on the tube 3. The tube 3 is fed by gravity from a tank 8 provided with a filter 7 and level indicator 9. The valve 6 regulating the fuel flow may be controlled thermostatically. The pipe 3 may be heated at starting by burning gas or liquid fuel or by an electric resistance. A heat distributing cone 4 may be arranged above the burner.
Patent GB-1035849-A (GB)
Title: Polymeric composition
IPC: C08F287/00
Filed: 1964-04-23
Abstract: Polymer blends comprise (1) a hydrogenated block copolymer of the formula A-B-A in which each A, prior to hydrogenation, is a polymer of an alkenyl aromatic hydrocarbon having an average molecular weight of 4000 to 115,000 and in which B, prior to hydrogenation, is a polymerized conjugated diene having an average molecular weight of 20,000 to 450,000, polymer A constituting 2 to 33% of the block copolymer, the residual unsaturation in both the aromatic and aliphatic blocks being less than 30% of the original value, and (2) an alpha-olefin polymer having a molecular weight of at least 5000. The hydrogenated block copolymers may be obtained as described in Specification 1,020,709.  The blends may be either thermoplastic or elastomeric depending upon whether they contain major or minor proportions of polyolefins.  The examples describe making blends of polyethylene and polypropylene with polystyrene-polyisoprene-polystyrene block copolymers.
Patent GB-333965-A (GB)
Title: Window roller blinds
IPC: E06B9/64
Filed: 1929-05-31
Abstract: 333,965. Gardner, C. May 31, 1929. Roller blind.-A blind roller 20 is supported in end brackets 15 each connected to an endless chain 13 and slidable in slotted tubular guides 3 secured to the window frame, the chains 13 being connected, for simultaneous adjustment, by passing over sprocket wheels 6 mounted on a shalt 7. The bottom rod 30 of the blind is provided with extensions 28 which pass through the slots in the guides 3. To permit the roller to be adjusted to a true horizontal position each end bracket is provided with a rotatable disc 16 having a number of holes 17 at various distances from the centre, or with slots of different depths, any one of which can be brought into register with a slot in the bracket to receive the end of the roller.
Patent GB-712188-A (GB)
Title: Brushes for dynamo-electric machines
Inventor: CASHMORE JOSEPH ALFRED
IPC: H01R43/12
Filed: 1951-07-16
Abstract: Carbon brushes for dynamo electric machines having increased resistance to wear at high altitudes are produced by dispersing an inorganic adjuvant within the brush material and impregnating the consolidated material with an organic impregnant of a drying oil basis.  Inorganic adjuvants may be salts or oxides of alkaline earth metals, metal halides or sulphides, or metallic lead, e.g. barium oxide, barium carbonate, barium fluoride, silver sulphide, lead iodide, calcium sulphate, cadmium bromide or cadmium iodide. The organic impregnant may be a varnish of a drying oil, e.g. raw or boiled linseed oil or raw tung oil, containing a drier, e.g. naphthenates of metals such as cobalt or driers based on lead or manganese, and may include a natural or synthetic resin, e.g. wood rosin, copal resin, or alkyd resin, which latter may be combined as an oil-modified alkyd resin, and a volatile organic solvent, e.g. white spirit or turpentine; various specific combinations of these ingredients are exemplified.  The brushes may be carbon and/or graphite with or without metals, e.g. copper, and a preparation of an electrographitic and copper-graphite brush is described.  The inorganic adjuvant may be added to the brush material before pressing or the brush may be impregnated with the adjuvant alone or in admixture with the organic impregnant.  For example, a brush may be impregnated with an aqueous solution of barium or lead acetates which are converted to barium carbonate and lead respectively on heating, or successively with solutions of silver nitrate and ammonium sulphide to form silver sulphide, or with solutions of sodium iodide and lead acetate to form lead iodide, or with molten lead iodide; alternatively, barium fluoride or lead may be incorporated in the brush powder before pressing.  The amount of inorganic material may be up to 15 per cent.  The impregnation with the drying oil material may be with vacuum and pressure and the final amount in the pores of the brush may be up to 10 per cent.  After impregnation the brush may be stoved 4-24 hours at 80-200 DEG C. or over.  Specification 616,257 is referred to.
Patent GB-792322-A (GB)
Title: Improvements in or relating to electric induction furnaces
Inventor: ALLEN ALEC GEORGE
IPC: H05B6/20
Filed: 1955-06-14
Abstract: 792,322. Induction furnaces. BIRLEC, Ltd. June 14, 1956 [June 14, 1955], No. 17075/55. Class 39(3) An induction furnace of the submerged resistor type includes a secondary loop 7 of which the opposite ends open into a channel 5 formed in the base of a refractory hearth lining 4. A tunnel 8 formed in a refractory body 6 houses a primary winding 9 which is threaded by an iron core 10. To ensure that molten metal entering a fissure or other fault in the the refractory material between the tun- and the loop or channel is cooled to below its melting point before reaching the tunnel surface and damaging the winding 9, the tunnel surface is lined with two copper sheets 11 each having a sinuous duct 12 for cooling fluid. The adjoining marginal zones of the sheets are electrically insulated one from the other by insulating material 13. The exterior of the refractory lining and body 4, 6 may also have cooled copper sheets applied to them to avoid leakage of metal. The furnace hearth may be circular in form, a helically wound cooling duct being secured to a number of copper plates applied to the outside of the hearth.
Patent GB-373800-A (GB)
Title: Improvements in or relating to projectors for colour cinematography
IPC: G03B33/08
Filed: 1931-06-12
Abstract: 373,800. Colour kinematography. SOC. ITALIANA PER LA CINEMATOGRAFIA A COLORI NATURALI CI. CO. NA. ANON., 3, Piazza. Eleonora Duse, Milan, Italy. June 12, 1931, No. 17185. Convention date, June 18, 1930. [Class 97 (i).] Sets of filters are mounted on a disc in a projector, and the set in use is replaced by another, as desired during projection, by rotating the disc electrically. As shown, pairs of filters f are mounted on a disc D carried by a hollow spindle A, and projection is effected simultaneously through the filters of one set by lenses O. The diso is rotatable by a pawl and ratchet device E actuated by an electromagnet G through a link L and bell-crank lever K. The magnet G may be energized through a relay controlled by a pushbutton. The shutter shaft B may be housed within the shaft A.
Patent GB-423166-A (GB)
Title: Improvements in and relating to systems of electric welding
IPC: B23K11/24
Filed: 1933-06-16
Abstract: 423,166. Switching systems for resistance welding ; valve amplifying circuits. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and KNIGHT, H. DE B., 108, Eastlands Road, Rugby. June 16, 1933, No. 17248. [Class 38 (iv)] [See also Group XL] A grid controlled vapour discharge device T<1> supplied with alternating anode voltage is controlled so as to be conductive for a predetermined short period by energizing its grid with a negative bias potential and, in addition, in accordance with the voltage developed across a resistance R<3> which is connected in series with a previously discharged condenser C<2> across a D.C. supply source. In the control of welding current, the valve T<1> is connected in series in the primary circuit of the welding transformer W. D.C. supply is obtained from the A.C. mains through a rectifier T<2> the output of which is connected across two resistances R<1>, R<2> a movable tapping A being connected to the cathode of the valve T<1>. In one position of a switch K<2> the condenser C<2> is short circuited, and in the other position the condenser is connected in series with the resistance R<3> across the D.C. supply. The grid of the valve T<1> is connected to the junction of the condenser C<2> and resistance R<3> through a resistance R<5> or by transformer or capacity coupling. The period of conductivity of the valve is varied by varying the resistance R<3>, or the position of the tapping point A or by varying the capacity C<2> as by connecting additional condensers in series or in parallel therewith by a switch K<3>. Two valves such as T' may be used so as to pass both half waves of the alternating current. Reference has been directed by the Comptroller to Specifications 414,889, 416,374, and 420,100.
Patent GB-1432913-A (GB)
Title: Milling cutter with exchangeable cutting plates
IPC: B23C5/22
Filed: 1974-04-19
Abstract: 1432913 Milling cutters FRIED KRUPP G.m.b.H. 19 April 1974 [21 April 1973] 17324/74 Heading B3K In a milling cutter 1 with replaceable and reversible cutter blades 5 located in peripheral slots 2 in the cutter body which extend parallel to cutter axis for the full depth of the cutter at its periphery, each blade 5 is heated in a support member 3 and clamped in the slot by a wedge 6 which urges it with clamping abutment with the side wall 8 of the slot. The support member 3 is provided with a projection 3<SP>1</SP> which engages the top surface 4 of the cutter body and the member 3 is secured within the groove 2 by a screw member 11 which engages in a recess 12 in the wall of the slot 2, the action of which urges the projection 3<SP>1</SP> and surface 4 into abutment. The wedge 6 is urged into engagement with the support member 3 by screw 7 and the engagement between the wedge surface 9 and the oblique surface 9 of the slot 2 effects the clamping action between the wedge and the cutter blade 5 clamps the blade in the slot against the wall 8. In an alternative embodiment the oblique surface is provided in the support member 3.