baber/WOPTO huggingface dataset:
Patent GB-544614-A (GB)
Title: Improvements in and relating to remote control systems
IPC: G05D3/18
Filed: 1940-05-22
Abstract: 544,614. Distant control. AGA-BALTIC RADIO AKTIEBOLAG. May 22, 1940, No. 9072. [Class 40 (i)] In a system in which a transmitted frequency varies in accordance with the transmitter position and a receiver automatically moves in correspondence, the transmitter comprises means for sending signals covering at least two different frequency ranges and the receiver comprises a corresponding number of receiving units. In one arrangement, Figs. 1 and 2 (not shown), two oscillators are provided and are tuned by variable condensers driven by the transmitter, a. cam-actuated switch rendering one operative over one-half of the transmitter range and the other over the other half. At the receiver a pair of error-detector circuits of a kind known in connection with the automatic tuning of wireless receivers operate in turn to bring the tuning of the receiver into conformity with that of the transmitter with the aid of a reversible D.C. motor which at the same time drives the controlled object. In a modification, the transmitter, Fig. 3, varies the frequency of an oscillator 29 covering one range of frequencies to give a coarse reading and of two oscillators 22, 24 covering the same different range and rendered operative in turn by a cam-operated switch 18 to give a fine reading. At the moment of change-over, both oscillators 22, 24 are effective together. At the receiving end, Fig. 5, an oscillator-mixer 36 is automatically tuned with the aid of a known type of errordetector and a motor 41 to give a constant beat frequency with the frequency received from oscillator 29 and similar arrangements are provided to vary the tuning of oscillatormixers 136, 236 in accordance with the frequencies received from oscillators 22, 24. Only one of the two error-detectors associated with valves 136, 236 is effective at a time, the beat frequency in the other case being too widely different from the error-detector tuning to produce an effect. Preferably logarithmic condensers are used at both ends. To ensure that the motor 60 shall not take charge with the receiver and transmitter considerably out of step at starting it is made weaker than the motor 41 or is cut out by a differential relav while there is a substantial difference between the field currents of motor 41. Alternatively the valves 152, 153, 252, 253 may be rendered ineffective by additional grids biased from the common cathode circuits of valves 52, 53 until the latter valves are taking their maximum current.
Patent GB-1425111-A (GB)
Title: High speed printed with intermittent print wheel with carriage  movement
IPC: B41J1/24
Filed: 1973-02-23
Abstract: 1425111 Selective printing XEROX CORP 23 Feb 1973 [25 Feb 1972] 9073/73 Heading B6F [Also in Divisions G4 and G3] A printer comprises a type disc 18 stepped to printing position by a stepping motor 27, and acted on by a hammer 19, the disc and hammer being supported on carriage which is stepped along a print line with respect to a platen 11. The disc comprises glass filled nylon radial spokes, and is fixed to the shaft 28 of the motor 27 by a releasable coupling comprising a rubber hub 31. The position of the disc 18 is detected by discs 36, 35 and the motor is driven in such a direction as to position the disc the more quickly.
Patent GB-807573-A (GB)
Title: Method of making a structure built up from die-pressings
IPC: B65D19/00
Filed: 1956-03-23
Abstract: 807,573. Making pallets and pallet covers. WHEELING STEEL CORPORATION. March 23, 1956 [Sept. 6, 1955], No. 9116/56. Drawings to Specification. Class 83 (2). [Also in Groups XVII and XXX] The description is identical with that in Specification 807,572. The claims are directed to a method of forming a structure, e.g. a pallet or pallet cover, from overlapping and interfitting die-formed elements such that the same dies can be used for structures of different sizes. Specification 807,571 also is referred to.
Patent GB-198845-A (GB)
Title: Improvements in weighing machines
IPC: G01G1/18
Filed: 1922-03-30
Abstract: 198,845. Hollis, T., (trading as Mutlow & Co., T.). March 30, 1922. Bearings.-The bearings of weighing machines are made separately of hardened steel &c. so that they may be driven into position within their supporting members. The bearings are interchangeable so as to be readily renewable. As applied to the pan supports of a counter scale the bearing 7, Fig. 2, is slightly tapered and is driven into its support from the outside of the stirrup 9, a pivoted cover plate 15 being afterwards applied to retain the bearing in place. The centre support for the beam is similarly provided with a bearing which is retained by a plate 17, Fig. 3, with the addition of a screw 18.
Patent GB-146615-A (GB)
Title: Improvements in or connected with miners' safety and other electric hand lamps
IPC: F21L4/00
Filed: 1919-04-10
Abstract: 146,615. Oldham, G., and Oldham, J. April 10, 1919. Lens-holders. - The lens 9 of an electric battery lamp is held in position by means of a ring 8 which can be locked by a pivoted catch 12, holes 16 being provided for a cord and seal.
Patent GB-641394-A (GB)
Title: An improved hand-operated perforating or the like tool primarily for puncturing identification marks in the ears of cattle and for other purposes
IPC: A01K11/00
Filed: 1948-04-01
Abstract: 641,394. Hand-punches. HORSTMANN, B. G. April 1, 1948, No. 9235. Drawings to Specification. [Class 31 (ii)] [Also in Groups VI and XXIII] Pliers for embossing, cutting, punching or for perforating the ears of animals comprise pivoted jaws carried by handles and means which close the jaws when the handles are squeezed together and on continued pressure cause the jaws to snap open. A perforated stripper or ejector plate is rigidly mounted between the two jaws. One of the jaws has piercing elements and the other has corresponding recesses. Alternatively, jaws for embossing, cutting or punching may be provided.
Patent GB-609938-A (GB)
Title: Improvements in or relating to automatic electrical circuit breakers
IPC: H01H71/52
Filed: 1946-03-26
Abstract: 609,938. Automatic circuit-breakers. FOSTER TRANSFORMERS & SWITCHGEAR, Ltd., and BAGNALL, R. I. March 26, 1946, No. 9261. [Class 38 (v)] A contact-operating arm 3, pivoted at 4, is held closed by toggle-arms 6, 7 connecting the arm 3 and a handle 8, the toggle 6 having a tail-piece 10 which projects into the path of a movable spring-loaded lever 11, which is pivoted at 12 and is normally held out of engagement with the tail-piece 10 by the engagement of a conical-stop 15 with the correspondingly-shaped edge of an aperture in a triangular lever 16. The lover 16 is pivoted at 17, and its apex 21 is latched by a lug 22 on an electromagnetically actuated bell-crank 23, 24. On overload, the belt-crank 23, 24 is rotated and releases the lever 16, which is then rotated to disengage the stop 15 by the action of springs 14 on the lever 11. The lever 11 thereupon flies upwards, strikes the tail-piece 10 and collapses the toggle 6, 7 to open the switch. The tripmechanism is automatically re-set as the switch opens by a tongue 29 on the arm 3 forcing the lever 11 back to its original position.
Patent GB-1425276-A (GB)
Title: Pressure differential valve
IPC: B60T11/34
Filed: 1974-03-01
Abstract: 1425276 Pressure differential valves; valves VOLKSWAGENWERK AG 1 March 1974 [2 March 1973] 9272/74 Headings F2F and F2V A differential pressure valve for a vehicle braking system comprises a piston 2, Fig. 1, slidable in a housing 1 and disposed between an inlet 7 and an outlet 8 of the housing and urged away from the outlet by a master spring 4. The piston has a port or ports 2.1 extending therethrough to provide direct communication between the inlet and outlet and which are closed at a predetermined inlet pressure by a valve disc 3 urged away from the piston by an auxiliary spring 5 which abuts the piston and valve disc, the latter presenting a differential area to the inlet pressure so as to be urged on to the piston against the spring 5 to close the port or ports 2.1 at the said predetermined inlet pressure, e.g. 1À5 atmospheres. The inlet pressure can be increased to a value of 10 atmospheres without a change in outlet pressure due to the action of the spring 4 but above this pressure the piston is moved to increase the outlet pressure. In modifications, (a) the valve has a differential piston 2, 2.4, Fig. 2, whereby the pressure differential of the valve is reduced with increasing inlet pressure, and (b) the valve forms an integral part of a brake cylinder in which is disposed an actuating piston. A switch may be incorporated in the valve to act as a brake or warning switch.
Patent GB-105293-A (GB)
Title: An Improved Artificial Foot.
Inventor: SALMON CHARLES
IPC: A61F2/66
Filed: 1916-07-03
Abstract: 105,293. Salmon, C. July 3, 1916. Limbs, artificial.-An artificial foot comprises a flexible sole part a provided with a sock portion a<2> engaging the leg portion b. A wooden instep part c is pivoted to a bolt f<1> carried in the leg, and an india-rubber cushion d is interposed between the instep and the leg. The hinge-joint consists of a rectangular tongue c<1> which passes through a similarly-shaped slot f in the bolt, and a hingepin m. A dowel-pin h prevents relative lateral movement of the instep.
Patent GB-1101085-A (GB)
Title: Improvements in or relating to mining-pick-securing arrangements
IPC: E21C35/18
Filed: 1965-03-04
Abstract: 1,101,085. Mining pick-securing means. GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI m.b.H. 4, March, 1965 [5, March, 1964], No. 9296/65. Heading E1F. A pick is secured in a box by a resilient member, preferably a ring, located axially along a shank-receiving bore in the box expanding into a recess in the shank of the pick after the member has been compressed by to allow entry of the shank into the bore.
Patent GB-539628-A (GB)
Title: Improvements in or relating to packet making and like machines
IPC: B65B11/28
Filed: 1940-05-27
Abstract: 539,628. Making packets. KIDD, D. B., and MOLINS MACHINE CO, Ltd May 27, 1940 No. 9314. [Class 94 (ii)] In a packet-making machine of the type described in Sipecification 495,275, the overlapping adhesive portions of the packets on the mandrels 1 are pressed together during a stationary phase of the machine by a member 5 carried by the intermittently - rotating conveyer 8, and a roller 6 engaging the member 5 and carried by a support 10 mounted on the shaft 2. The folds at the bottom of the packet are pressed by a frusfo-conical roller 12 engaging an end face of the mandrel.
Patent GB-458891-A (GB)
Title: Improvements in or relating to kitchen clocks
IPC: G04B39/00
Filed: 1936-03-30
Abstract: 458,891. Clocks. JUNGHANS AKT.- GES., GEB., Schramberg, W³rtemberg, Germany. March 30, 1936, No. 9372. Convention date, April 5, 1935. [Class 139] In a kitchen clock with an earthenware dial plate a, the bezel b for the glass b<1> is hinged, at c2 to the earthenware plate. To hold the glass cover closed, the bezel has a split pin e which engages in a sleeve d bolted to the earthenware plate. Reference has been directed by the Comptroller to Specifications 24284/11 and 153,565, [both in Class 139].
Patent GB-1488998-A (GB)
Title: Buoyancy belt
IPC: B63C9/115
Filed: 1975-03-06
Abstract: 1488998 Life jackets I SANDERSON 6 March 1975 [14 Aug 1974] 9409/75 Heading B7U [Also in Division A3] A buoyancy belt comprises a yoke-like garment having shoulder straps of elastic material defining a neck-hole 5 and two arm-holes 6 and a skirt portion 7 for encircling the upper back and chest region only of a wearer, the skirt portion including a front closed compartment and a back closed compartment each of double walled construction, said compartments being spaced apart and neither of which compartments extends through the under-arm portions 9 of said skirt portion 7, each of said compartments containing a single compartment-distending mass of buoyant material 10. Material 10 is a block of disconnectedly-cellular, non- absorbent and water-impervious polyvinyl chloride. The ends of the compartments are are closed by stitching or other seaming in the under-arm portions 9, the garment thus having no under-arm bulk sufficient to impede swimming motion of the arms. The compartments have hems 11 housing a draw-cord 12 for tying about the chest either at one side or at the back or front. The garment is made of elastic material.
Patent GB-889892-A (GB)
Title: Sound signal system
IPC: H04M3/487
Filed: 1959-03-18
Abstract: 889,892. Time recording systems. DICTAPHONE CORPORATION. March 18, 1959 [March 25, 1958], No. 9426/59. Class 40 (2). An apparatus, particularly for use with centralized dictation systems, is arranged to provide a sound signal, particularly a time recording signal, whenever a telephone handset, connected to the system is lifted. As shown, a perforated 16 mm. magnetic sound film 26 with two tracks, is fed at one-minute intervals between the spools 22, 24 in amounts determined by the metering sprocket 28. The stationary loop resting around the drum 30 is scanned by one or other of the heads 32, which make one complete revolution for each time signal required. Each track of the film contains signals for 12 hours, and automatic reversing of the spool drive and changeover of operation of the heads is effected by mechanism connected to one or other of the members 54, 56. The control of drive and function is by a relay network (Fig. 18, not shown).
Patent GB-161827-A (GB)
Title: Improvements in and relating to electrical resistance apparatus
IPC: H05B3/26
Filed: 1920-04-06
Abstract: 161,827. Margerison, C. J., and Shenton & Co., Ltd., F. J. April 6, 1920. Wire and ribbon resistances, mounted on flat or curved surfaces.-Wire coils e are arranged in interrupted grooves formed by projections b on a base plate a. The projections may be staggered to form sinuous grooves, and holes for air circulation may be provided in the base a between the horizontal rows of projections. The wire may be one continuous length wound round the base, the projections being provided on both sides of the base. In this case, the projections on the rear side are arranged to form grooves at an angle to those on the front as shown in Fig. 1. Notches a<2> are formed in the edges of the plate to hold the wire which may also be wound round metal studs f forming connections for the tappings. Fig. 4 shows a modification in which the coils are anchored to studs fixed to a fiange a<5> or to separate lugs projecting from one edge of the base plate. Fig. 6 shows a modification in which the wire is held by slotted members b<1> formed integrally with the projections b. The members b<1> may be provided on two opposite edges, or along one edge only, of the base a. In the latter case the opposite edge carries studs to which the ends of the separate coils are attached. In a further modification the wire is held in the grooves by means of a cross-bar fixed at the ends to the base a.
Patent GB-1103205-A (GB)
Title: 6,13- and 7,13-dialkylgonatriene compounds
Inventor: HUGHES GORDON ALAN
IPC: C07J5/00
Filed: 1964-03-06
Abstract: Novel steroids of the formula <FORM:1103205/C2/1> (where one R is methyl or ethyl and the other H; R1 is n-alkyl of 2 to 4 carbon atoms; R2 is H, alkyl or acyl; and Y is carbonyl, ketalized carbonyl, hydroxymethylene or acyloxymethylene; and the hydrogen atoms and the group R1 at the ring C junctions are in the trans-antitrans configuration) are prepared by reduction of the corresponding D 8(9) or D 9(11) compounds. When an alkali metal in liquid ammonia is used for reduction, a 17-carbonyl group is reduced also.  The resulting 17-ol may be oxidized and 17-ones may be separately reduced.  Ketals may be deketalized and 17-ols esterified.  The above structure includes all states of resolution except the resolved 13 a -enantiomers.
Patent GB-784244-A (GB)
Title: Improvements in or relating to portable cases for housing and carrying electrical equipment
IPC: H02B1/46
Filed: 1955-04-01
Abstract: 784,244. Radio transmitting apparatus. RAYTHEON MANUFACTURING CO. April 1, 1955 [April 8, 1954], No. 9652/55. Class 40 (5). A portable case for housing and carrying electronic equipment comprises (1) an equipment mounting panel 20 with sides 38, 39 terminating in flanges 40, 41, (2) an inner rectangular frame 18, 19 of sheet metal having outwardly extending flanges 24, 25 and 28, 29 with ends 26, 27 bent over parallel to the four sides of the frame and arranged to accommodate the panel 20 with its flanges 40, 41 overlapping the flanges 28 so that they may be bolted together; (3) an outer sheet-metal frame 16, 17 mounted over the inner frame and secured in spaced relation from it by welding or bolting it to the bent-over edges 26, 27; and (4) cover-plates 43, 44 (Figs. 4, 5, 6) enclosing the open ends of the outer frame 16, 17. Preferably the inner and outer frames are formed from two parts with abutting edges welded together. Also the end covers 43, 44 may be secured to the outer frame by spring-loaded catches 45 (Fig. 5) engaging depending latches 45a in the outer frame, the bottom edges of the covers 43, 44 initially being located by pilot pins 45b in the outer frame engaging holes in the covers. A second equipment mounting panel may also bridge the flanges 40, 41 of the panel 20. The panel 20 may also have folded over edges connected by triangular bracing plates 20A. A carrying handle 15 is connected to the outer frame 16, and apertures in the two frames permit the entry of an electrical supply cable. Other apertures permit ventilation.
Patent GB-579257-A (GB)
Title: Improvements in trimmer condensers
IPC: H01G5/06
Filed: 1944-05-19
Abstract: 579,257. Variable condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GRAHAM, J. W. May 19, 1944, No. 9705. [Class 37] A cylindrical ceramic base a is covered with a metallised layer b and a further layer of protective dielectric c such as a glaze. The movable electrode cooperating with the metallised layer comprises a cylindrical metal cap e, a sliding fit on the glaze and adjustable by screwing up or down on a supporting screw f which also serves as a connection.
Patent GB-1456270-A (GB)
Title: Density threshold detection
IPC: H01M50/569
Filed: 1974-03-04
Abstract: 1456270 Determining specific gravity electrically COMPAGNIE EUROPEENNE D'ACCUMULATEURS 4 March 1974 [12 March 1973] 9715/74 Heading G1N [Also in Division H1] A device for indicating a threshold value of density of a liquid 2 e.g. the electrolyte of a storage cell includes a tube 3 open at both ends and partly immersed in the liquid and containing a column of a second liquid 4 immiscible with the first, and two thermistors 9, 10 arranged respectively in electrical heating elements 7, 8 in the first and second liquids the bottoms of the respective thermistors being spaced apart vertically by a distance #H corresponding to the difference in free surface levels #H of the liquids when the electrolyte density is at the threshold level. The thermistors constitute adjacent resistance arms R 1 , R 2  of a first bridge circuit monitoring the density threshold. The resistance arm R 1  is also in a second bridge circuit monitoring the level of the first liquid.
Patent GB-526925-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/30
Filed: 1939-03-29
Abstract: 526,925. Vacuum cleaners. BRITISH THOMSON-HOUSTON CO., Ltd., STENT, T. F., and BOCOCK. W. A. March 29, 1939, No. 9826. [Class 8 (i)] The casing of a vacuum cleaner comprises a. fore part 1 and a separate rear part with open front and bottom, secured thereto by screws &c., clamping between them a partition plate 8 which supports the motor 10 and fan 15 and forms the rear closure of the fan chamber. The motor is also supported by a plate 12 on a castor 13, while the fore part of the casing is supported by floor wheels mounted on a pivoted frame adjustable by a screw 22. The sides 24 of the handle bail are pivoted within the rear part of the casing, projecting through slots in the top, and a pedal actuated spring catch 26 holds the handle in position. If the casing is of metal, the motor may be protected by a plate of metal or insulating material secured in the bottom of the rear portion, and insulated from the front and rear casing portions. Radio interference may be suppressed by a condenser unit, and choke coils may also be provided.
Patent GB-1336067-A (GB)
Title: Inspection of small objects
IPC: G02B21/00
Filed: 1971-04-19
Abstract: 1336067 Inspection microscope WESTERN ELECTRIC CO Inc 19 April 1971 [21 April 1970] 9876/71 Heading G2J In a microscope for examining both sides of a specimen, the specimen 11 is mounted on a transparent support 31 and by unfocusing the objective 22, the underside of the specimen can also be inspected using a plane mirror 35. The support 31 may be slidable between an inspection position and a loading/unloading position and may be slid on a bed of pressurized fluid to reduce friction.
Patent GB-781711-A (GB)
Title: Improvements in or relating to a method of producing sheet metal strip for making heat exchangers by fluid pressure inflation
IPC: B21D51/28
Filed: 1955-04-05
Abstract: 781,711. Making heat exchangers. OLIN MATHIESON CHEMICAL CORPORATION. April 5, 1955 [April 13, 1954], No. 9911(55. Classes 83 (2) and 83 (4). [Also in Groups XIII and XXIII] Stamping; jointing by rolling.- A method of making a composite aluminium blank for making heat exchangers, e.g. refrigerator evaporators and aircraft radiators comprises applying a pattern of stop weld material to the treated, e.g. scratch brushed face of an aluminium sheet, superimposing a similarly treated face of another aluminium sheet'and securing the sheets against relative slippage, heating the assembled sheets to between 700 and 1050 F. and welding the sheets together by passing them through a rolling mill which reduces their thickness more than 60 per cent. Degreased straightened aluminium sheets 1 and 2 have their adjacent opposing surfaces scratch brushed by wire rolls 7 and 8 which removes the oxidized surface and produces a crest and trough surface structure. After scratch brushing an applicator roll 10 applies a foreshortened pattern of stop weld material, e.g. colloidal graphite mixed with ground oyster shell, to the strip 2. The pattern is dried by passing the strip under an infra-red heater 12. The strips are brought together by pinch rolls 15, 16 and staking rolls 17, 18 join the edges of the strips at spaced intervals to prevent slippage. The fastened strip assembly is then heated to a temperature of from 980 to 1000 F. in an electric induction furnace 23 supplied with an inert gas, e.g. argon or helium, through an inlet 24. From the furnace the assembly passes to heated rolls 26, 27 of a 4-high hot mill where the assembly is hot roll bonded at a reduction of about 65 per cent. Final reduction to elongate the embryonic conduit pattern (Fig. 5) to its final desired configuration and size is accurately performed in a cold mill 29. Next, the cold worked strip 30 enters an annealing furnace 31. The final roll bonded stock 32 is thinner than either of the strips 1 or 2. In order to develop the conduit pattern an injection nozzle connected to a fluid pressure source at about 1000 to 7500 pounds per square inch is inserted in an extended portion 46 (Fig. 5), of the pattern. The metal in the unwelded parts of the stock defined by the pattern is then expanded whilst the stock is positioned between spaced platens 39, 40 (Fig. 4), of a press. The crest and trough structure produced by the scratch brushing has not, due to the presence of the stop-weld material, been obliterated in the regions of the pattern by the rolling so that the expanded tubular portions are internally striated which improves the heat transmission of the expanded portions. Specification 759,804 is referred to.