baber/WOPTO huggingface dataset:
Patent GB-315266-A (GB)
Title: Tubular radiator
IPC: F28D1/047
Filed: 1929-07-01
Abstract: 315,266. Soc. Anon. des Anciens Etablissements Liotard FrÞres. July 10, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Serpentine-tube apparatus.-An aeroplane &c. radiator comprises an upper header 1 having a distribution duct 8 and to which water to be cooled is supplied through a pipe 4 and a lower header 2 having a vertical rear leg 3 with a cold water outlet 5, the upper header and its duct being connected to the lower header by pairs of cooling-tubes having a flattened cross-section in the direction of the air stream and defining circular spaces through which the air flows. The cooling-tubes are held in place, by bars 16, 17, and the headers are connected at the front by a st.iffening-bar 15. The upper header and the vertical leg of the lower header communicate through a valved opening so that the cooling-tubes can be bye-passed.
Patent GB-1155963-A (GB)
Title: Improvements in or relating to Grinding Machines.
Inventor: JONES JOHN CYRIL
IPC: H02P29/00
Filed: 1965-05-13
Abstract: 1,155,963. Grinding. CHURCHILL MACHINE TOOL CO. Ltd. 8 Aug., 1966 [13 May, 1965], No. 20174/65. Heading B3D. [Also in Division G3] A grinding machine of the type in which a predetermined fall in the grinding wheel motor current produces an infeed of the grinding wheel relative to a workpiece until such reduced current is increased and restored to a predetermined value includes circuit means adapted to control the longitudinal traverse of the grinding wheel relative to the workpiece in response to such an increase in current. Thus, with a workpiece such as a roll has been worn in the middle there is a gradual fall in the grinding wheel motor current as the wheel traverses from the end of the roll to the middle of lesser diameter; when the current has fallen a predetermined amount the control circuit operates causing the wheel to move further in towards the workpiece thus producing an increase in the load current. This increase in current is utilized to stop the longitudinal traverse of the wheel, and then to reverse the direction of traverse. The full sequence of operations required to control the traverse of the wheel first to grind the tailstock portion of the roll and then the workhead portion, whilst maintaining the load on the grinding wheel substantially constant, is described in the Specification with reference to Figs. 1 to 4 of the drawings (not shown) which depict a suitable relay circuit for effecting the desired control.
Patent GB-1123887-A (GB)
Title: An improved refrigeration system
IPC: F25B41/04
Filed: 1967-05-02
Abstract: 1,123,887. Refrigerating. TRANE CO. 2 May, 1967 [13 May, 1966], No. 20193/67. Heading F4H. In a vapour-compression refrigeration system having a low-pressure cut-out switch 36 for the compressor, the liquid receiver 16 is located above the evaporator 20 on a support 28 and starting of the compressor under conditions of low ambient temperature, when the condenser pressure is lower than that of the evaporator, is achieved by temporarily interrupting communication between the condenser 14 and receiver and equalizing the pressures in the evaporator and receiver via a line 42 so that liquid refrigerant flows to the evaporator by gravity. The refrigerant evaporates and raises the suction line pressure sufficiently to cause switch 36 to start the compressor. As shown, a three-way valve 44 is employed both to interrupt condenser-receiver communication and to open line 42. The system also includes a valve 40 controlled by a load-responsive switch 30 on the evaporator, a valve 48 which is located in a line 46 by-passing the expansion valve 18 and is opened when line 42 is opened, and a valve 34 which maintains condenser head pressure by controlling refrigerant flow through the condenser and a condenser by-pass line 32. An electric control circuit for the system is described (Fig. 3, not shown). In a modification (Fig. 4, not shown) the functions of valve 44 are performed by valve 34 in combination with check valves in lines 32 and 42.
Patent GB-732371-A (GB)
Title: Improvements relating to means for forming a clamp around an elongated body such as a cable
IPC: H02G3/06
Filed: 1952-08-11
Abstract: 732,371. Mechanical couplings for cable sheathing. BENDIX AVIATION CORPORATION. Aug. 11, 1952 [Sept. 21, 1951], No. 20199/52. Class 38 (1). In a device as described in Specification 722,002 for clamping and sealing a cable 15 where it enters a member such as a conduit 10, the resilient sleeve 24 is surrounded adjacent its end remote from the adapter 20 by a rigid retaining sleeve 27, an internal flange 29 on sleeve 27 entering an annular groove 28 in sleeve 24. The lower edge of sleeve 27 is provided with V-shaped teeth 32 which engage the end of conduit 10 on application of the device-thereto and prevent rotation of the sleeve 24 as nut 11 is tightened. Specification 721,872 also is referred to.
Patent GB-314684-A (GB)
Title: Improvements relating to horns for gramophones, loud speakers and the like
IPC: H04R1/00
Filed: 1928-07-11
Abstract: 314,684. Webster, C. July 11, 1928. Sound-magnifying appliances.-A device interposed between the ends of a horn for a gramophone or loud-speaker, for providing a number of sound passages, comprises two chambers consisting of or provided with cones and connected together by a number of tubes preferably of different lengths. As shown in Fig. 1, the chambers 3, 4 are conical and are connected at their apices, and the tubes 5 extend at right-angles to the walls of the chamber. In the modification shown in Fig. 2, the chambers 8, 9 are cylindrical, but may be spherical, and are provided with conical members 10, 11 to direct the sound waves into and from the tubes 12. The tubes 5, 12 may be curved or, as shown, formed of straight sections connected together. The hom may have bowed portions 6, 7.
Patent GB-698582-A (GB)
Title: Improvements relating to protective electrical sparkover devices
IPC: H01T1/04
Filed: 1951-08-28
Abstract: 698,582. Protective arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 28, 1951 [Sept. 15, 1950], No. 20284/51. Class 38 (iv). To extinguish the follow-through power arc following breakdown by excessive voltage of the main spark gap 12, Fig. 1, of a lightning arrester, an auxiliary electrode system 13-17 is disposed between the main electrodes 10, 11, and a magnetic field (perpendicular to the plane of the electrode system and preferably produced by the passage of arc current through coils located on opposite sides of the electrodes) is provided to cause the arc to be deflected from the main gap to the auxiliary electrodes, where it is broken up into a number of series-connected arcs. An oppositely directed field may be provided adjacent the outer ends of the electrode system to limit the extent of movement of the arc. This field may be produced by coils located adjacent the outer ends of the electrodes and carrying the arc current, or the return field of the arc deflecting coils may be utilized-being increased in the vicinity of the outer ends of the electrode system by surrounding this with a wrapping of magnetic material. Further spark gaps shunt each fieldproducing coil to by-pass the coils under surge conditions. In another construction an insulating framework 42-44, Figs. 8 and 11, carry main electrodes 45, 46 and two rows of auxiliary electrodes 48-54 and 53-61, the framework being mounted between insulating plates 40, 41, to the outer faces of which are attached coils for producing the transverse magnetic field. The inner walls of the plates 40, 41 are corrugated, as shown, so as partially to extend between adjacent electrodes and thus prevent direct arcing between, say, electrodes 48, 50. Alternatively, the walls may be parallel and metal rods placed between the electrodes. Voltage-distributing resistors may shunt each main gap when a number of arresters are arranged as a series stack, and a non-linear resistor may be in series with the stack.
Patent GB-672267-A (GB)
Title: Improvements in or relating to a method and apparatus for feeding leather to a smoothing press
IPC: C14B1/44
Filed: 1949-08-04
Abstract: 672,267. Endless-belt conveyers. SVIT, NARODNI PODNIK. Aug. 4, 1949. [Sept. 8, 1948] No. 20300/49. Class 78 (i). Leather is fed to a hydraulically-actuated smoothing press by an endless band conveyer driven hydraulically, pressure liquid being used for this purpose at the instant of opening the press after the pressing operation has ended. The conveyer band 10 is passed round a drum 9 which is driven by a ratchet wheel 8 and associated pawls. The wheel 8 is driven by a gear 7 engaged by a rack 6 formed on the upper end of a piston rod 5. The piston rod works in a cylinder 3 and carries a weight 17 and a shock absorber 20. Liquid from the supply 13 is fed by a pump P through the pipe R, valve 1 and pipe 2 to the lower end of the cylinder. The upper end of the cylinder is connected to the supply 13 by the pipe 12, and the cylinders of the press pistons A, C are connected to supply by a pipe R<SP>1</SP> controlled by a valve 24. The spindle of this valve is pivoted to a lever 22 which is pivoted to a rod 21 connecting the valve 16 and an auxiliary piston 15. This piston is controlled by the valve 1. The pipe R supplies pressure liquid to the space below the lifting piston B and also communicates with the pipe R<SP>1</SP> through the safety valve 25. A valve 26 is arranged to reduce the pressure on the valve 24 when the press is opened in order to secure a rapid transfer of liquid to the supply 13. When the operator moves the handle 14 to close the valve 1, pressure rises in the pipe R and the piston B is forced upwards. At the same time liquid is forced from the supply 13 through the valve 24 into the cylinders containing the pistons A, C so that the latter move upwards as well to close the press. The pressure in the pipe R goes on increasing until (1) it overcomes the resistance of the safety valve 25 and (2) causes the downward movement of the piston 15 and opening of the valve 16 with consequent closing of the valve 24. These movements result in a further increase of pressure under the pistons A, C and the descent of the piston 4 since the liquid below the latter is forced through the pipes 2, 18, valve 16 and pipes 19, 12 to supply and through the pipes 19, 12 and 11 into the cylinder 3 above the piston. When the pressing operation is finished, the valve 1 is opened and liquid from below the piston B and the liquid pumped through the pipe R passes through the valve 1 and pipes 2, 18 to the spaces below the piston 4 and valve 16. The upward movement of the piston 4 causes the band 10 to be advanced. The upward movement of the valve 16 closes it and also opens the valve 24 thereby permitting fluid from the pipe R<SP>1</SP> to return to supply. Specification 626,767 is referred to.
Patent GB-206561-A (GB)
Title: Improvements in or relating to dry meal feeding troughs
IPC: A01K39/012
Filed: 1923-04-16
Abstract: 206,561. Wilmot, A. M., and Wilmot & Co., Ltd., S. M. April 16, 1923. Feeding-appliances for animals.-A dry-meal feeding-trough comprises a container having a perforated bottom, a trough below the container, agitating-appliances above the perforated bottom, and arms depending into the trough adapted to be moved by a pig, to actuate the agitating- appliances and cause the meal to fall through the perforations. The circular container a is supported above the trough j<1> by brackets j. The size of the apertures in the bottom c is regulated by means of an adjustable perforated plate e. A pin m passes through the base h, a coned distributor or guide k, and stays f, g. On the pin m are placed distance pieces n, 7 and collars o provided with stops p to limit the rotary movement of the pin. Above the cone k is a slotted and castellated collar t provided with arms u carrying blocks v for the pigs to push against. connected with the collar t to a disc 2 provided with spokes 3 and a run 4 on which rests a conical shield 5 supporting a cone 6.
Patent GB-201475-A (GB)
Title: Improvements in vehicles of the self-laying track type
IPC: B62D55/065
Filed: 1919-08-19
Abstract: 201,475. Clark, H. C., and Huddart, A. H. Aug. 19, 1919. Transmission gear of invariable ratio.-Endless-track vehicles carry a motor e, clutch k and gear box l mounted above the front bogie b and connected by gearing m with a propeller shaft which is horizontal and drives a differential gear in a casing n. This casing carries the two rear bogies and the transverse shafts have pinions q connected by chains r with the driving-wheels s. Specification 201,578, [Class 79 (v), Motor vehicles, Steering &c.], is referred to.
Patent GB-410351-A (GB)
Title: Improvements relating to spectacle frames
IPC: G02C1/08
Filed: 1933-07-19
Abstract: 410,351. Spectacles. CALLENDER, L. J., 18, Cross Street, Hatton Garden, London. July 19, 1933, No. 20394. [Class 97 (i).] In a spectacle &c. frame having a shell front and grooved metal lens-holding frames in which the shell parts are adapted to allow insertion of the frames and then to embrace and hold them in grooves by contraction radially, the bridge, which is substantially of shell, is reinforced by means of a socket -and -spigot junction between parts of the metal lens frames. As shown, the shell frames 1 are internally grooved to receive the metal frames 3 which are split at 4 and provided with hinge lugs 5, the shell frames being also interrupted at 6 so that thev can contract on to the frames 3. The reinforcement for the bridge 8 consists of a socket 10 extending from one metal frame and a spigot 11 extending from the other and fitting into the socket. The socket and spigot are straight when assembled, and the bridge with the reinforcement is afterwards bent to shape.
Patent GB-971835-A (GB)
Title: Method of and apparatus for the cleaning,sterilising,filling,gassing and closing of ampoules,bottles and similar containers made of glass,plastic or metal
IPC: B08B9/20
Filed: 1961-06-06
Abstract: 971,835. Conveyers; packaging-machines; cleaning and filling containers. SANDOZ Ltd. June 6, 1961 [Oct. 7, 1960], No. 20420/61. Headings B8A, B8C and B8T. Pairs of wires are used to support and guide ampoules to be filled with liquid or powdered material through cleaning, filling and sealing stations in a sterile processing apparatus. Ampoules 33 are loaded into the meshes 16 (Fig. 3) formed between fixed longitudinal and movable transverse pairs of wires 10a, 10b and 11a, 11b by a tube 32 (Fig. 1) having pointed ends to open the meshes so that the enlarged filling neck 42 may be pushed through by a plunger 34. As shown in Fig. 3, the transverse pairs of wires 11a, 11b are tensioned between conveyer chains 12 which are supported against deflection by rollers 31 bearing against the housing 24. Intermittent movement of the chains carries the ampoules through the various processing stations such as ultrasonic cleaning 48, filling 49 and sealing 50. The ampoules are discharged at station 56 by a device 57 similar to the loading device.
Patent GB-1433271-A (GB)
Title: Tool for applying bundle straps
IPC: B65B13/24
Filed: 1974-05-09
Abstract: 1433271 Strap tensioning tool AMP Inc 9 May 1974 [7 June 1973] 20456/74 Heading F2G A tool for tensioning, and optionally trimming, a flexible strap, positioned around a bundle of -wires, comprises a sliding gripper assembly which operates to tension the strap until a predetermined tension is reached when the gripper releases, and if desired severs, the strap according to the positioning of an externally visible selector. The gripper assembly 30 comprises an elongate drawbar 62, mounted for sliding, reciprocating movement, to which is attached the sprung gripper 72 such that when the operating lever 28 is not depressed the spring 48 maintains the grip in a first position at the nose portion of the casing, a cammed surface of the gripper co-operating with surface 78 to rotate the gripper into a non- gripping position. As the operating lever 28 is depressed the gripper spring presses the gripper against the strap 136, and the drawbar 62, guided by shoulder 64 of casing and pin 68 in slot 70 of the drawbar, slides away from the nose, being coupled to the operating lever through tension release lever 38, until the shoulder 98 of tension release lever 38 hits the stop 96 which is integral with the casing whereupon the lever 28 is released and the mechanism returns to its original position under the action of spring 100. This procedure is repeated until the tension in the strap is sufficient to overcome the force exerted by spring 48, which is preset by adjustment of screw member 54, maintaining roller 90 in grooves 88 in drawbar 62 lifting roller 90 out of groove 88. If the selector 122 is in a "no-cut" position the drawbar is still limited by the pin 122 to a travel such that shoulder 98 hits stop 96 and the strap is released but if selector 122 is in a "yes-cut" position the roller 90 is allowed to traverse slit 86 in drawbar 62 such that surface 98 misses stop 96 so that a cam surface 110 of the upper part of lever 28 now contacts roller 108 rotating a lever 104, pivoted at pin 106 attached to the casing, such that the blade 116, attached to the other end of lever 104, co-operates with anvil 117 to sever the strap.
Patent GB-602813-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1945-08-09
Abstract: 602,813. Photographic objectives. KODAK, Ltd. Aug. 9, 1945, No. 20464. Convention date, Aug. 10, 1944. [Class 97 (i)] In an objective comprising four coaxial components separated by air, of which the two outer ones are positive and the inner ones compound negative menisci highly concave towards each other, the second component consists of a biconvex element of refractive index less than 1.56 and dispersive index greater than 55 cemented to the front of a biconcave element whose refractive index is at least .08 greater and whose dispersive index is at least 20 less than that of the biconvex element. The third element may consist of a positive element of refractive and dispersive indices respectively greater than 1.68 and 45 cemented to the back of a biconcave element, whose refractive index is less by .15 and whose dispersive index is less than that of the biconvex element. Data are given for one example of the lens shown. Specifications 559,390 and 602,863 are referred to.
Patent GB-932266-A (GB)
Title: Automatic vehicle guidance system
Inventor: LAWSON ROBERT
IPC: G05D1/02
Filed: 1961-06-07
Abstract: 932,266. Leader gear. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 16, 1962 [June 7, 1961], No. 20569/61. Class 40 (5). A self-propelled vehicle, e.g. a tractor drawing a plough, is inductively controlled and guided by means of six buried conductor loops, only four, A, B, E and F being shown. The loops are rectangular and portions a-b of all the loops are coincident. A power supply PS supplying a signal at a frequency of say, 2 kc/s. is connected via a selector switch SS to each of the loops in turn, the switch SS being operated by a signal from a receiver R controlled by a transmitter TR mounted on the tractor T. A sensing head SH mounted on a boom on the tractor may be moved to any one of positions 1 to 5, or five heads may be mounted in these positions and selected by switching, to control an automatic steering device SD. The plough P has right-hand shares PSR and left-hand shares PSL selectively raised or lowered by means PA controlled by a further sensing head PH on the tractor energized when in proximity to control wires C1, C2 carrying a signal of say 8 kc/s. At the start of a plouging operation the tractor T is in the position shown with the sensing head SH at position 1 and it will follow loop A. When it crosses wire C2 the head PH is energized and the appropriate plough share is lowered until the wire C1 is reached and head PH again is energized to raise the plough share and cause the sensing head SH to be moved to position 5. On reaching point A3 on wire C1 the other plough shares are lowered until the wire C2 is reached and the shares are raised and the sensing head SH moved to position 2 so that when the tractor reaches point A1 the second time it will be parallel to but displaced to the left of its original line of travel up the loop A. Ploughing takes place until wire C1 is reached and this time the head SH is moved to position 4 and ploughing repeated on the downward part of loop A. In this way five complete circuits of the loop A are made and when completed the control wires C1, C2 will have been crossed twenty times. A counter CO on the tractor is energized from the wires C1, C2 and when a count of twenty is reached, the transmitter TR sends a signal of say 15 kc/s. to the fixed receiver R adjacent the portion a, b of the loops to operate the selector switch SS and transfer the power supply PS from loop A to loop B. The transmitter TR is de-energized by the next signal from the counter CO on crossing the wire C2. The above operation is then repeated for loop B and the remaining loops in sequence. When the tractor reaches the end of the last circuit of the last loop F the signal from transmitter TR to the receiver R causes the switch SS to open the circuit of the power supply. The sensing heads are tuned to the required frequencies by connecting a capacitor across the sensing coils.
Patent GB-836419-A (GB)
Title: Improvements in lagging members for underground gallery-support systems
IPC: E21D11/15
Filed: 1956-07-03
Abstract: 836,419. Mine lagging. BOCHUMER G.m.b.H. FUR GRUBENAUSBAU-UND TECHNIK. July 3, 1956 [July 4, 1955; Aug. 29, 1955; Dec. 28, 1955], No. 20618/56. Class 20(2) Mine arches 1 are connected by lagging members comprising two or more members 2 connected by a transverse member 7 and bent at both ends to engage both sides of each arch by parts 4a. The free ends 4c may be bent round the arch in situ. The members 2 are inclined apart towards the free ends to allow the closed end of an adjacent lagging member to fit between them. The members 2 are joined by bracing 8. 'In further modifications the ends are bent to embrace the open sides of U-section arches in one of them Figs. 5-7 (not shown) parallel rods are joined intermediately by transverse and diagonal members