baber/WOPTO huggingface dataset:
Patent GB-665015-A (GB)
Title: Improvements in or relating to voltage dividers
IPC: H01J17/00
Filed: 1949-02-26
Abstract: 665,015. Discharge apparatus. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 26, 1949 [Feb. 26, 1948], No. 5308/49. Class 39 (i). [Also in Group XXXV] In a glow discharge device, used in combination with similar devices or with resistors to provide a voltage divider of low power consumption (see Group XXXV), the discharge occurs between a conductor with a sharply curved end, preferably a pointed conductor, and a plate, said conductor and said plate being arranged opposite each other inside a tube filled with a gas of such a nature and under such a pressure that the glow discharge can occur under the desired potential difference, means being provided for varying the distance between the conductor and the plate and/or the pressure of the gas filling the tube. The filling comprises, for example, nitrogen or hydrogen, which, when the voltage across the device is higher than 6 or 7 kilovolts, should preferably be at atmospheric pressure. For lower voltages, it is advantageous to operate under a reduced pressure. The Specification as open to inspection under Sect. 91 comprises also a device, Fig. 4 (Cancelled), in the form of a tube 23, which can be grounded, closed by end members 24 and 25 which, together with gas-tight jointings 46 are secured by caps 26 or. 27 which are screwed on to the tube. An insulating element 28, through which passes a conductor 29 which can be connected to a high voltage supply, is located within the end member 24, and the spaces between the element 28 and the member 24 and between the said element and the conductor 29 are filled with an insulating compound 30. Conductor 29 is connected to an electrode 31 provided with a point 32 and supported by an insulating cheek 33. A bearing 34, connected to cheek 33 by spacers 35, is secured to the end member 25. A plate-shaped electrode 38 is attached to a screw 37 carried by an internallythreaded sleeve 36 which is secured in an annular recess of the bearing 34. End member 25 is closed by an oil bath stuffing-box 39, held in position by a cap 40, through which passes a control-rod 41 attached to screw 37 by a key 42. The distance between the plate 38 and the point 32 can thus be varied by turning the rod 41. Play is taken up by a spring 43 interposed between a shoulder 37a of screw 37 and the bearing 34. End member 25 is provided with a filling valve 44 which can be closed by a plug 45. This subject-matter does not appear in the Specification as accepted.
Patent GB-300840-A (GB)
Title: A desk structure
IPC: A47B17/00
Filed: 1928-02-20
Abstract: 300,840. Richardson, B. E. Feb. 20, 1928. Chests of drawers; drawer fittings. - In a pedestal desk, each pedestal, Fig. 5, consists of a rectangular sheet-metal base frame, with horizontal flanges 1 and moulded vertical flanges 2 receiving wooden sides 4 with incurved ends 5, and a wooden base plate 6, above which is fitted a drawer-supporting frame made of sheetmetal. This is surmounted by a frame 26, and two such pedestals support an ordinary desk top with a central drawer. The drawer-supporting frame consists of sheet-metal corner posts 7, with flanges 8, 9, connected by drawer-runners 11 at the sides and by V-section cross-bars 14 at the front. The drawer-runners 11 have vertical flanges 10, and are of the cross-section shown in Fig. 4. Near the rear ends the runners 11 are connected by similarly-sectioned cross-bars 21, 22. In each of the corner posts 7 is bolted an angle-bar 15, and on the inner side of each of the rear posts 7 is spot-welded a channel-iron 18. Between the edges of the parts 7, 15 are secured the incurved edges of the panels 5, and in the parts 18 are set the edges of the back panel 25. All these parts are secured together by vertical tie rods 30, and are supported on legs 31.
Patent GB-552048-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23D5/02
Filed: 1941-04-24
Abstract: 552,048. Rifling &c. tools. JAMESON, J. L. April 24, 1941, No. 5315. [Class 83 (iii)] Rifling and similar tools with transverse cutting edges have a number of cutting edges 2 substantially equally spaced on a body slit at 3 or otherwise weakened to permit deformation by a wedge core 5 to produce increasing expansions for successive cuts with contraction to provide clearance on each return stroke. The number of cutting edges may be a sub-multiple of the grooves to be cut, indexing being employed to cut the second or remaining sets. In a modification steadying surfaces 7, Fig. 6, are provided between the cutting edges to prevent chatter.
Patent GB-384140-A (GB)
Title: An improved automatic coupling device for toy railway vehicles
IPC: F02M9/08
Filed: 1932-02-23
Abstract: 384,140. Automatic couplings for railway vehicles. SANDTFOSS, G., 7, Webersplatz, Nuremberg, Germany. Feb. 23, 1932, No. 5430. Convention date, March 13, 1931. [Class 103 (v).] Toy railway carriages are fitted with couplings adapted to be released electromagnetically when a contact on the carriage passes over a contact on the track energized from the live rail by means of a switch. Each carriage carries a coupling loop 1, Figs. 1 and 2, pivoted at 12 and biased by springs 13, and coupling hooks 2 forming arms of bell-crank levers 5, 6 pivoted at 3 and biased by a spring 7 normally to abut against stops 5a, 6a. To engage a coupling two carriages are pushed together, a loop 1 being guided by a fork 4 between the teeth 2a, of hooks 2 which are pushed apart and then reclose behind the bridge-piece 1a. The hooks are opened for uncoupling by manual operation of an extension 8 of lever 6, or by the energization of a magnet 11, the armature 10 of which retracts levers 5, 6 through links 9. The magnet circuit is closed when a roller 15 on an insulated contact arm 14 contacts with rails 21, Figs. 4, 5, and 6, connected in parallel with the live rail 20 at the appropriate moment by manually closing a switch connected between terminals 24, 26. The rails 19, 19, 20 are mounted in clips 17, 17, 18 secured to an insulated plate 16, the rails 21 being connected thereto by bridge-pieces 22. The Specification as open to inspection under Sect. 91 describes an alternative construction in which the armature 10 is replaced by a slide member 29, Figs. 8 (Cancelled) and 9 (Cancelled), guided in lugs 30 and operated for uncoupling when a stop 37 on the track rocks a lever 36 fast on a spindle 34 rotatably mounted in brackets 35, a lever 32 also fast on the spindle and passing through slots 31, 33 in the slide 29 and floor 42 respectively rocking the former to the right, Fig. 9 (Cancelled). The stop 37 is an arm of a bell crank 37, 39 normally urged out of operative position by a spring 41, and brought into operative position by rotating a bell crank 40 resiliently connected thereto. Alternatively the bell crank 37 may be rocked into operative position by energizing a magnet the armature of which is linked to the arm 39. This subjectmatter does not appear in the Specification as accepted.
Patent GB-412525-A (GB)
Title: Process for the production of dispersions of chlorinated rubber
IPC: C08J3/05
Filed: 1934-02-19
Abstract: Dispersions of chlorimated rubber are obtained by stirring finely divided solid chlorinated rubber in a liquid consisting of water and a solvent for the chlorinated rubber, such as toluene. The three components may be introduced simultaneously into the stirring apparatus, or the chlorinated rubber may be introduced into, and stirred with, a mixture of water and the solvent.
Patent GB-705010-A (GB)
Title: Improvements in and relating to dynamoelectric machines
IPC: H02K47/04
Filed: 1952-03-03
Abstract: 705,010. Exciting dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. March 3, 1952 [March 14, 1951], No. 5513/52. Class 35 In order to maintain constant A.C. output voltage and frequency of an alternator driven by a D.C. motor, the alternator has two field windings one of which is fed with a current in accordance with the current in the motor armature and the other field winding is in parallel with a non-linear resistance having a negative voltage-resistance characteristic, this parallel circuit being in series with the motor field shunt winding. The Figure shows an alternator 2 having a field winding 6 in series with the armature of the D.C. driving motor 1, a second field winding 5 in parallel with a non-linear resistance 10, and a motor shunt winding 3 connected in series with this parallel circuit. If the D.C. supply voltage at 7 increases, the motor 1 tends to increase in speed but, owing to an increased current in the winding 3 due mostly to the effect of negative voltage-resistance characteristic of the resistance 10, the motor speed is kept constant. If the supply voltage tends to decrease, the opposite effect is produced by the resistance 10. Any fluctuations in the A.C. load will affect the motor armature current which is also the field winding 6 current. Hence, such load variations do not produce any corresponding A.C. voltage variations because of the compensating effect in the winding 6. In some cases, the motor series winding 4 can be dispensed with, and the linear re: sistors 8, 9, 11 can be omitted by proper design of the windings 3, 5 in association with the non- linear resistor 10. Specification 292,110, [Class 37], is referred to.
Patent GB-839685-A (GB)
Title: Improvements in or relating to delay lines for travelling-wave tubes
IPC: H01J23/24
Filed: 1959-02-18
Abstract: 839,685. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 18, 1959 [Feb. 27, 1958; Dec. 9, 1958], No. 5569/59. Class 39(1). A delay line for a travelling-wave tube consists of T-shaped members 11 and a conductive back plate constituted by the upper surface of the slotted wall 10 of a rectangular waveguide 8. Free expansion of the elements of the line is permitted whilst an adequate separation between symmetric and asymmetric modes is obtained. Several such circuits may be placed side by side to provide a structure periodic in two directions at right angles. In Figs. 9 and 10, the facing ends of the arms 16, 16<SP>1</SP> have stepped overlapping portions 17, 17<SP>1</SP> to increase the capacitative coupling. The band width of the line may be increased by providing ridges 19 on the wall 10 projecting between the T -shaped members. The delay line may be curved into cylindrical form about an axis parallel to or perpendicular to the elements of the line. Specifications 761,768 and 776,072 are referred to.
Patent GB-562968-A (GB)
Title: Improvements in or relating to necktie frames and like supports
IPC: A41D25/04
Filed: 1943-04-08
Abstract: 562,968. Necktie frames. NOBLE, C. April 8, 1943, No. 5597. [Class 141] A tie frame consists of a curved member 1 of metal &c. adapted to be secured round the neck by elastic tapes 3, the member 1 being preferably twisted and provided with a forwardlyprojecting lip 6 around which the tie is knotted.
Patent GB-208669-A (GB)
Title: Improved nail-puller and case opener
IPC: B25C11/00
Filed: 1923-02-26
Abstract: 208,669. Gore, H. C. Feb. 26, 1923. Nail extractors.-A combination tool for opening packing cases consists of a Z-shaped bar A, Fig. 1, curved at its bends and having one end B, Fig. 2, bored out and provided with a tapering slot for extracting nails, and the other end C, Fig. 13, provided with a slanting slot C<1> for bursting hoop iron or wire. The sides of tha slot C' are preferably bevelled to form cutting edges and the inner end of the slot may be provided with a chisel edge C<2> for cutting metal linings of cases. A screw-driver C<3> and wirecutting nick C<4> are provided on the end C and buffer or hammer faces B<3> are formed on one or both of the bends of the bar A. The nail-extracting slot in the end B preferably has its edges inwardly bevelled in cross-section but the edges may be parallel or outwardly bevelled.
Patent GB-644866-A (GB)
Title: Improvements in and relating to automatically stopping textile flyer frames
IPC: D01H1/00
Filed: 1947-02-26
Abstract: 644,866. Stop-motions for textile flyer frames. BLAN & CIE, and CARRETTE, M. Feb. 26, 1947, No. 5613. Convention date, April 23, 1946. [Class 120(ii)] A device for automatically stopping a textile flyer frame by the action of an automatic roving stop mechanism has means for preventing the stoppage of the frame when the bobbin lifter rail is at or near the ends of its travel. The lifter rail 1 is controlled by a rocker 3, through a rod 6 and slideway 8, and on the rocker 3 two adjustable dogs 10, 11 are located to press successively against contact-breakers 12, 13. When the lifter rail 1 is not at the end of its travel, the contact-breakers 12, 13 are positioned to maintain a roving stop mechanism circuit closed. The roving stop mechanism may be as described in Specification 637,520. When the lifter rail 1 is at the end of its travel, one of the two dogs 10, 11 bears against its associated contactbreaker 12, 13 to break the circuit and prevent operation of the stop mechanism. In a modification, a single contact-breaker may be operated by an arm on a pinion meshing with teeth on the top of the rocker 3.
Patent GB-1374816-A (GB)
Title: Hydraulic swash plate pump
IPC: F04B1/20
Filed: 1972-03-01
Abstract: 1374816 Reciprocating pumps DOWTY TECHNICAL DEVELOPMENTS Ltd 1 March 1972 [1 March 1971] 5653/71 Heading F1A In a swash-plate pump comprising a rotary cylinder block 2, Fig.1, with axial or inclined pistons 7 engaging a swash-plate 11 through slippers 15, hydro-kinetic pumping means 27 are provided in or on the block 2 to draw liquid from the inlet 26 over the swash-plate and discharge it to a zone 13, 28, Fig.2, communicating with the arcuate inlet port 29, a restricted vent 34 connecting zone 13, 28 to a low-pressure zone, e.g. a supply reservoir, to provide for a sufficient liquid flow over the swash-plate for cooling and lubrication at small or zero tilt angle of the swashplate. Bearing surfaces 3, 10 support the block in casing 1, and are cooled by flow through pumping passages 27. Swash-plate tilt is controlled by servopiston 21.
Patent GB-977801-A (GB)
Title: Method of and apparatus for harvesting trees
IPC: A01G23/08
Filed: 1961-02-16
Abstract: 977,801. Transporting special loads; sledges. INSTYTUT BADAWCZY LESNICTWA. Feb. 16, 1961 [Feb. 20, 1960; June 24, 1960], No. 5781/61. Heading B7B. [Also in Division B8] To fell or uproot a tree, a dolly A is secured to the trunk and the tree is pulled over by a cable D attached to a winch E or pushed over by a bulldozer, Fig. 9 (not shown), so that it is supported by the dolly. A second dolly B may be provided for supporting the upper part of the tree during transportation. As shown in Fig. 4, the dolly comprises a bolster 5, with side stakes 6 and a support 7, rotatably mounted on a pivot-pin 4 supported by an axle 3 which is provided with wheels 1, 2. In a modification, Fig. 6 (not shown), the wheels 1, 2 are replaced by a single roller extending substantially the full width of the dolly. In further modifications, the wheels 1, 2 are replaced by sledge runners 12, Fig. 7, or by endless tracks (not shown). In Figs. 10, 11 (not shown), the bolster 5 is replaced by a drum mounted on the axle 3 and provided with side stakes.
Patent GB-870246-A (GB)
Title: Improvements in or relating to snow clearing devices
IPC: E01H5/02
Filed: 1959-02-20
Abstract: 870,246. Manually operated snow ploughs. WILLCOX, A. Feb. 11, 1960 [Feb. 20, 1959], No. 5870/59. Class 107 A manually propelled snow clearing device comprising a base 4 attached to a handle 5 and mounted on a roller 15 is operated with the protected leading edge 14 of the base in contact with the ground. As the device is moved forwards the snow rides up the base and is shed to one or other side of the vehicle by a deflecting board 6 pivotally mounted 8 on the base and locked in position by a wing nut 12.
Patent GB-1037151-A (GB)
Title: Improvements in and relating to crop loaders
IPC: A01D87/12
Filed: 1965-02-11
Abstract: 1,037,151. Endless conveyers. R. A. POCKLINGTON and P. CUNNINGTON. Feb. 11, 1965, No. 5889/65. Heading B8A. A tail unit 12 of a crop loader is hinged at 13 to the main frame of an elevator, the weight of the tail unit 12 upon castor wheels 19 and upon the ground being minimized by tension springs 14. To facilitate picking up of the crop, a tail shaft 22 has plain rollers 67 to turn over crop on to surfaces of slipways 10d, Fig. 2 (not shown). A trough 9 includes a bottom grating 11, Fig. 5 (not shown), made up of a series of parallel spaced steel rods 11a. The front and rear ends of the main frame are independently adjustable for height. At the rear, two guides and supports 49 each comprise a tube 50 which is rigidly secured in a bracket 53 and which telescopically receives a shaft 54. The initial length of the support 49 is adjusted by a pin 56 which is received in a selected pair of a series of holes 50a formed in the tube 50. Height adjusters 42 have a similar adjustment and are connected to a pair of arms 47 which may be swung up and down hydraulically. The front of the frame is adjustable by rams 33 coupled to support bars 35 rigidly mounted on the frame. Endless conveyer and drive.-Chains 20 carry brackets 30 to which T- or angle-section slats 29 are attached. When dealing with peas or other similar crops, bars 31 having pins 32 are temporarily attached to the slats 29. The upwardly travelling runs of the chains are supported on flat steel plates 26, the downward runs are supported on rails 27 of round section welded to flat steel bars 28. An hydraulic motor 59 is coupled, via a reduction gear 64 and chain 65, to a head shaft 24 of the conveyer. An hydraulic pump 57 driven from a power take-off shaft 25 is connected to the motor 59, and the circuit includes a reservoir 62. When used for cleaning boot, a trough 69 is anchored on to the tail unit 12 and on to the immediately adjoining portion of the main conveyer. A hopper 71 receives the crop which passes upwards beneath a chain mat 72 adjustably secured by chains 73. Telescopic legs 74 may fold across the hopper. When the loader is used for bales an attachment 68 is provided.
Patent GB-125201-A (GB)
Title: Improvements in and relating to Vacuum Electric Discharge Apparatus for Lighting.
IPC: H01J61/64
Filed: 1918-04-06
Abstract: 125,201. British Thomson - Houston Co., (General Electric Co.). April 6, 1918. Vacuum tubes.-A lamp contains a rare gas at such a vacuum and electrodes at such a distance that at a low electric pressure, say 110-220 volts, a discharge is set up in which substantially only the " negative glow " is visible. No special starting device is required. The gas may be neon, preferably pure, helium, or a mixture of these containing 20 per cent by volume of helium. The pressure may be that of 1 millimetre of mercury, but depends on the composition of the gas and the spacing of the electrodes. With the pressure mentioned, the form shown in Fig. 1 is suitable. Four aluminium electrodes 3-6, spaced apart by a distance small in comparison with their length, are supported by two glass or like spiders 8 on a stem within a bulb adapted for insertion in an ordinary incandescent-lamp holder. The bulb is about 3 in. in diameter and 7 in. long. The electrodes may be alternately connected to opposite supply leads, or two of each polarity may be adjacent. To prevent short-circuiting by deposits produced on the arms, a resistance, say of 300 ohms, may be inserted in the cap. The lamp then takes a current of 0.07-0.1 ampere on a 220 volt supply. Another form of lamp has similar spiders supporting eight parallel filaments of carbon or metal at two distances from the stem. In a third form, four cathodes are arranged as shown in Fig. 1, and a helical anode closely surrounds the stem. A fourth form comprises two disk electrodes transverse to the axis of the bulb. If alternating current is used, the disks are of the same size; otherwise the anode is nearer the cap and is smaller than the cathode. Roughening the electrodes facilitates the discharge. Specification 5611/14 is referred to.
Patent GB-252285-A (GB)
Title: Improvements in and relating to the tuning of wireless circuits and apparatus therefor
IPC: H01F27/00
Filed: 1925-03-04
Abstract: 252,285. Morton, R. J. T., and Stirling, B. March 4, 1925. Transformers. - High-frequency transformers for wireless circuits are provided with a screw-adjusted coil of high conductivity in order that when used in multi-stage high-frequency amplifiers in which the circuits are tuned by simultaneously operated condensers, slight differences in the circuits may be compensated for and the circuits brought into exact tune by an adjustment of the cores. The core comprises a screwed rod a of brass, copper, aluminium, steel, or iron working in a thread in the former b<1> or in a screwed bush a<1> screwed or frictionally secured within the former, and may be provided with a fibre guiding washer c at its lower end. Alternatively, the core a may be made hollow and filled with iron filings. The hoie in the transformer may be wholly or partly lined with metal to form in conjuction with the core a variable condenser which may be connected in a neutrodyne circuit. A bush such as a<1> having an adjustable core may be provided for use with existing high-frequency transformers. According to the Provisional Specification, an adjustable conducting shield or sheath may be used instead of the core.
Patent GB-588896-A (GB)
Title: Improvements in and relating to the treatment of wool-washing effluent
Filed: 1945-03-09
Abstract: <PICT:0588896/III/1> The effluent from a wool-washing plant is concentrated by evaporation until it contains 4 per cent. or more of wool fat, then heat treated by circulating it between a heater and an autoclave until a temperature of 290 to 302 DEG F. at a pressure of 50 lbs per square inch is reached, and it is then allowed to settle in the autoclave so as to separate wool-fat, clear aqueous liquor, and muddy liquor from one another.  The separated layers may be run off and collected separately.  The effluent may be circulated from the bottom of the autoclave chamber to the inlet end of the heating device and from the outlet end of the heating device to the top of the autoclave chamber.  One steam or other heater may be used for heating the contents of a number of different autoclaves in succession.  As shown in Fig. 2, effluent from the wool washery, after preliminary evaporation to give a concentration of 4 per cent. or more of wool fat is admitted through pump 7 and pipe 9 to the lower manifold 14 of heater 1. The effluent passes through steam-heated pipes within the heater 1 and from the upper manifold 14 and pipe 16 to the upper portion of one of several autoclaves 2, 4, which may be operated separately and in succession by means of appropriate connections and valves. The effluent is circulated down through the autoclave 2 and thence through outlet 26, distribution piece 30 and pipe 37 to the pump 7.  The effluent is thus maintained in circulation until the whole body of effluent in the heater is raised to the temperature and pressure desired.  The autoclave 2 is then cut off from the heater 1, and the effluent is allowed to settle.  A further quantity of effluent is passed into another autoclave and treated in a similar manner, while the effluent in autoclave 2 is settling. The mud is drawn off through valve 36, pipe 37, and pump 7, which discharges the mud through pipe 41.  The clear aqueous liquor is then removed by closing valve 36, opening valve 36a, and running the liquor through pipe 35, back to a wool washing plant for re-use.  The wool-fat is removed by closing valves 36, 36a, and opening valve 34.  To prevent bubbling or turbulence of the contents of the autoclave 2 when the constituents are being removed after settling, steam or air may be admitted to the top of the autoclave by appropriate pipes and valves.