baber/WOPTO huggingface dataset:
Patent GB-700671-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
Inventor: COOPER VICTOR JAMES
IPC: G05F1/52
Filed: 1948-05-20
Abstract: 700,671. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 19, 1949 [May 20, 1948], No. 13742/48. Class 40 (6) An arrangement of the cathode - follower type, whereby power is supplied to a load under control of a voltage source which itself provides only a small proportion of the total power, comprises a number of resistances R2, Fig. 1, connected in series with the source S and load TL, the load side of each resistance being connected to the cathode of a valve V and the control grid of each valve to the other terminal of the corresponding resistance via a source of positive bias GB. The driving source may-comprise, as shown, a grounded cathode amplifier, or a cathode-follower or grounded grid valve, Figs. 2, 3 (not shown). Specification 526,418 is referred to.
Patent GB-108932-A (GB)
Title: Improvements relating to Poultry Houses.
Inventor: DEBOO WALTER EDGAR
IPC: A01K31/02
Filed: 1916-09-29
Abstract: 108,932. Deboo, W. E. Sept. 29, 1916. Poultry houses.-Relates to means for enabling the birds to open the door of the poultry house to release themselves in the morning. The hatchway is provided with an inner sliding door I and an outer spring actuated door fitted with a latch A which is operated by a projection B on the door I as the latter rises, thus allowing the door to swing open. The door I is connected by a link F to a lever G carrying a perch K, and the weight of a bird on the perch K is sufficient to raise the door I. The perch, as it is lowered, is engaged by a pivoted latch D, which holds it in its depressed position, thus maintaining the doors open until again set for the night.
Patent GB-476370-A (GB)
Title: Improvements in and relating to a universal spring coiling machine
IPC: B21F3/04
Filed: 1937-05-18
Abstract: 476,370. Coiling. BLOUNT, W. H., and SLEEPER & HARTLEY, Inc. May 18, 1937, No. 13891. Convention date, Jan. 30. [Class 83 (iv)] In a spring-coiling machine the feed rolls and the coil cutter are intermittently driven by cam mechanism through a change speed gear to give large variation in cam-shaft speed in forming long or short springs. The cam may be disconnected when forming continuous springs. The wire is fed by grooved rolls 10, 12 over or under an arbor 14 and against an abutment 15 adjustably mounted on an arm 16. Pivoted nipping cutters 20 co-operating with the arbor are actuated bv a cam 30 on a shaft 85. The feed rolls 10. 12 are driven from an electromotor 32 through a variable speed gear 35 and chain 44, clutch 54, shaft 46, shaft 53 and clutch 70 operated by a cam 86 on the shaft 85. In order to stop the feed rolls, a brake is applied by a lever operated by the cam 86. The shaft 53 is rotated by a band of gears 114 selectively engaged by a small pinion 116 or a large pinion 118 keyed on a shaft 125. The pinions are locked in position by a gatechange device. The shaft 125 :rotates pinions 146, 147, 148 which may be engaged with gears 150, 152 on the cam-shaft for high or low speed drive. For a very slow speed drive a sun pinion 155 is loosely mounted on the shaft 85 and engages a planet pinion 164 on a pinion 158. The gear 146 on the shaft 145 drives the pinion 158 loosely mounted on a sleeve 151 with a pinion 162 engaging the pinion 164. The pinion 162 has one tooth more than the pinion 155 causing a very slow rotation of the shaft 85. Operation. The feed roll speed is adjusted by a hand wheel 38 of the variable speed gear or by changing gears 48, 49 on shafts 46, 50. The cam-shaft speed is then adjusted by engaging the gears 116, 118 with the bank of gears 114 or by utilizing the planetary mechanism on the shaft 85. For continuous operation of the machine, a control lever is moved to disengage the drive shaft 85 which is rotated manually to a position in which the cam 86 holds the clutch engaged and the brake released.
Patent GB-241488-A (GB)
Title: Improvements in and relating to article carriers and display devices
IPC: A47F7/00
Filed: 1925-05-27
Abstract: 241,488. Brockley, J. May 27, 1925. Parcel and like carriers.-A device for carrying articles, for example in cooking operations, or for display purposes, comprises a support consisting of one or two rings provided with a carrying handle and having intersecting radial brace members, pairs of spring clamps being mounted on the ring or rings, the supporting means for the device comprising series of feet which serve also for securing the clamps to the rings. Fig. 2 shows a single ring 10 fitted with brace bars and with a handle 13, the spring clamps 14 and the brace bars being secured to the ring by shouldered feet 16, Fig. 3, the upper ends of which are upset at 19. Fig. 4 is ,an inverted bottom plan view of a form having two rings each carrying a set of clamps.
Patent GB-898449-A (GB)
Title: Improvements in or relating to electrolytic cells for the production of metals
Inventor: RANSLEY CHARLES ERIC
IPC: C25C3/16
Filed: 1957-05-01
Abstract: 898,449. Electrolytic cells. BRITISH ALUMINIUM CO. Ltd. May 1, 1958 [May 1, 1957], No. 13969/58. Divided out of 898,602. Class 41. An electrolytic reduction cell for the production of aluminium comprises two spaced anodes 2 and at least one solid current-conducting element 6 disposed substantially midway between the anodes 2 and extending from above the cell into the pool 5 of molten aluminium on the floor of the cell, each element 6 containing at least 90% by weight of at least one of the materials in the group consisting of the carbides and borides of titanium, zirconium, tantalum and niobium. The cell comprises a container 1 composed of hot-pressed silicon carbide or of silicon carbide bonded with silicon boride, and a sleeve 7 on the element 6 is of the same material as the container 1. The anodes 2 are carbon and are in parallel rows separated by a row of elements 6, hangars 8, 11 being connected respectively to positive and negative bus-bars the direction of current flow in which is arranged to produce magnetic fields which tend to neutralize each other, and the bus-bars may be adjustable to vary their heights above the cell. If a carbide is employed for the element 6, the oxygen content should be less than 1% by weight, and the free carbon content should not exceed 0.5% by weight if the porosity exceeds 10% by volume. If borides are employed, boron may be added to the aluminium 5 by amounts of 0.001% to 0.003% by weight, or the metal of the boride concerned may be added in amounts of 0.001% to 0.005% by weight. Reference has been directed by the Comptroller to Specifications 784,695, 784,696 and 802,905.
Patent GB-651908-A (GB)
Title: Improvements in scraper conveyors
IPC: B65G19/28
Filed: 1948-05-24
Abstract: 651,908. Endless-chain scraper conveyers. HOUILLERES DU BASSIN DU NORD ET DU PAS DE CALAIS. May 24, 1948, No. 13972. Convention date, May 23, 1947. [Class 78 (i)] In a scraper conveyer of the kind consisting of a succession of identical elements each formed of a pair of side cheek-plates interconnected medially by a horizontal metal sheet so as to form two superposed compartments, the elements are connected together by means of bolts passing loosely through aligned holes in gusset plates secured to the ends of the elements so that a limited amount of movement in both horizontal and vertical planes is possible, and a flap is secured on the underside of the metal sheet at the upstream end, relative to material flowing in the upper compartment, so as to engage under the metal sheet of the adjacent element and prevent dislocation of the elements in the horizontal plane. Framework.-The elements consist of cheekplates a interconnected by metal sheets b. The ends of each cheek-plate are provided with gusset-plates c by which the elements are connected with long bolts d passing through aligned holes c<1> therein which are oversize with respect to the bolts. The flap b<1> secured to the right-hand sheet b, Fig. 2 (material moving to the right), engages under the left-hand sheet b and at its outer portions carries guides i, Figs. 1 and 2. The trough is shown used with pushers carried by cable chain at the right, Fig. 1, whilst if a roller chain is used, left, Fig. 1, extra guides k, near the ends of the elements, and l, which extend the full length of the elements, are secured to the top and bottom flanges respectively of the check-plates a. As the two elements in Fig. 2 are angularly displaced vertically either guides k and i or flap b<1> and guides l guide the chain, respectively, in the upper and lower compartments. Scrapers.-The cable chain consists of links h, Fig. 7, having at intervals special links m, incorporating a guide-plate g at the outer portion and being pivotally connected at p to cruciform sectioned scrapers e. The roller chain has at intervals one pair of outer links replaced by a guide-plate g and a bracket-plate g<1> to which is pivotally connected at g<3> a scraper r, Figs. 9 and 10, by means of a slotted hole n in the scraper so that the scrapers can take up a diagonal position. The scrapers r are composed of two halves bolted together.
Patent GB-497644-A (GB)
Title: Improvements in and relating to glass to metal seals
IPC: C03C27/02
Filed: 1937-05-19
Abstract: Metal members for sealing to glass are formed of an iron alloy containing from 38 to 44 per cent in all of nickel and cobalt. The cobalt content does not exceed 6 per cent and when cobalt is absent nickel ranges from 39 to 43 per cent.  A specified alloy also contains 0,5 per cent of manganese.
Patent GB-561059-A (GB)
Title: Spraying and frost-preventing device
IPC: A01G13/08
Filed: 1942-10-07
Abstract: 561,059. Spraying orchards with hot air &c. SANDERSON, W. B.. WALTHER, M., and AMELUNG. J. Oct. 7, 1942, No. 14098. [Classes 6 (i) and 6 (ii)] For preventing injury to orchards &c. by frost, or for spraying and dusting purposes, a fan 2 is mounted in a lateral opening 1 in a vehicle body and driven by an enclosed motor M, the exhaust heat of which is used. The opening 41 is frusto-conical in shape, with an adjustable half-frustum 42 and deflecting plates attached thereto. Gas-containers 24 may feed a segmentally-arranged series of burners 23 through a pipe 25 and valve 36. A blower 28, beltdriven from the motor, delivers powder from a hopper 27 through a pipe 31 to a flaring nozzle 35 in the opening 1, distribution being improved by a, conical baffle, 34. Liquid insecticide is drawn through a pipe 37 by a pump P and delivered through a pipe 38 to nozzles protruding from a pipe which rests in bayonet slots 41 in the lower wall of the opening 1.
Patent GB-561944-A (GB)
Title: Improvements in or relating to internal combustion engines operating on the two-stroke cycle
IPC: F02B33/00
Filed: 1942-10-08
Abstract: 561,944. Two-stroke engines. SULZER FRERES SOC. ANON. Oct. 8, 1942, No. 14114. Convention date, Nov. 8, 1941. [Class 7 (ii)] A multi-cylinder two-stroke internal-combustion engine has opposed pistons 1, 2 driving crank-shafts 5, 6 and each cylinder is supplied with air by one of a series of pump cylinders 17 which are arranged in staggered relation to reduce the length of the engine. From the pump cylinders air is delivered to a pipe 11 and thence through ports 13 into the working cylinders. Exhaust passes through ports 14 to a manifold 16. The connecting rods 18 of the pump pistons 19 are coupled to the connecting- rods of the pistons 2. In a modification, Fig. 3, the cylinders 17 are arranged in staggered V formation.
Patent GB-544278-A (GB)
Title: Means for the mounting of clamps on wooden objects
IPC: E04C3/18
Filed: 1940-09-12
Abstract: 544,278. Strapping timber &c. FIELDER, M. Sept. 12, 1940, No. 14126. [Class 45] In a method of, and apparatus for, applying clamping bands around wooden objects one end of the band 1 is carried round the object 7 and laid over the other end which is provided with upstanding side lugs 3 apertured to receive a cross-key 6 for retaining the overlapping parts in contact. The band is tensioned by a tool comprising a U-shaped frame 10 housing a slide 11 mounted on a screw 12 movable longitudinally by a nut 13 rotatable by pivot 15 on a handle whereby the band, when gripped between the slide 11 and a coacting serrated member 16 having an inclined slot engaging a pin 20 mounted in lugs 21 on the frame 10, is tensioned. Extensions 10a of the frame 10 carry pivot pins 22a supporting recessed members 22 adapted to engage the key 6 during tensioning of the band, and when a suitable tension is applied the tool is turned bodily on the pivot pins 22a to bend the band over the key and press it down. The tool is provided with a handle 27 for swinging it over and a central handle 28 for carrying it. The pin 20 has an eccentric part engaging the slot in the member 16 to permit rapid release of the grip on rotating the pin by a handle 25; this handle has a stop pin 26 to engage the frame 10, and the pin may be withdrawn bodily by the handle to facilitate insertion of the band. When the tool is in tensioning position the axis of the pivot pins 22a lies in the central plane of the key and at a distance from the side of the key of one and half times the thickness of the band, whereby the bending over of the band is facilitated. In a modification, the apertured lugs and the key at one end of the band are replaced by a U-shaped clip whose lower limb is housed in a fold in the end of the band and which receives the return end of the band overlying the folded end. The clip provides an abutment for the pivoted members on the tensioning tool which after tensioning is turned over to bend back the tensioned end of the band over the upper limbs of the clip.
Patent GB-378499-A (GB)
Title: Improvements in or relating to the recording and reproduction of sound in connectionwith gramophone discs or like records
IPC: G11B19/265
Filed: 1931-05-13
Abstract: 378,499. Gramophones ; associated working with kinematographs. CHURCHER, G. G. E., Woodcote, Castle Road, Salisbury. May 13, 1931, No. 14149. [Class 40 (ii).] A gramophone adapted for use with a kinematograph projector is provided with a friction wheel 16 which is driven at substantially constant angular velocity from the projector and is also traversed radially inwardly of the disc or turntable so that the disc is driven at constant linear speed relatively to the stylus. The drive from the projector may be a flexible cable 20 which drives the friction wheel 16 by bevel gearing. The wheel 16 is contained in a casing 15 which also encloses a centrifugal governor 24 driven by worm gearing 21, 22 to maintain the speed of the wheel 16 and disc constant. The casing is carried by an arm 14 which is pivotally and slidably mounted on a bar 13. The arm 14 also carries a pivoted shoe 31 engaging a track screw 27 which is driven by worm gearing 29, 30 from a friction wheel 28 coacting with the periphery of the turntable. To enable the casing 15 to be moved relatively to the shoe 31, the latter is formed in two parts which are relatively slidable under the control of a screw 37. The driving wheel 16 may be disposed at a part of the disc remote from the stylus, or, when an electric pick-up is employed, this member may be pivoted on the casing 15. If desired, the gramophone motor may also be adapted to drive the turntable, and the friction disc, which is driven from the projector, then serves to brake the disc. The picture film and sound record are marked correspondingly to indicate the points of commencement of reproduction, and the tyre of the wheel 16 is provided with a circumferential mark to facilitate placing the wheel in correct position. If desired, sound may be recorded on a disc driven or controlled from the kinematograph projector as described above. According to the Provisional Specification the friction member need not necessarily be driven from a kinematograph projector.
Patent GB-652317-A (GB)
Title: Machines for manufacturing umbrella ribs from strips of sheet steel bent to u- or v-shape
IPC: B21D53/00
Filed: 1948-05-25
Abstract: 652,317. Making umbrella ribs. INDUSTRIAL-HOLDING-ESTABLISHMENT. May 25, 1948, No. 14156. Convention date, May 29, 1947. [Classes 83 (ii) and 83 (iv)] Punching ; shearing ; jointing by stamaping.- A machine for making umbrella ribs from strips of sheet steel bent to U or V-shape, Fig. 1, comprises a strip feeding device 6, Fig. 12, a clamping device 33, 34, for interrupting the feed, an annealing device A, and, each spaced apart by one rib length, a wire inlaying, wire enclosing and wire flattening device B, a hole punching and severing device C, and a movable abutment 11 which, by the feeding of the stock 1, operates a clutch 21. which actuates the said devices A, B, and C, and the clamping device through a cam-shaft 15 for a simultaneous operating cycle. After a completed rib has been cut off at C and dropped and the pressure on the stop 11 thereby relieved, the clutch is automatically disengaged, the shaft 15 is stopped and the rib feed is released to initiate a fresh operating period. U-sectioned strip 1 is fed by rollers 6, 7, up to the spring-loaded stop 11, which is thereupon displaced to the right, forcing a rod 14 to the left through a lever 13, actuating clutch 21 to couple the shaft 15 to the motor 25. A notched disc 28 then raises a plunger 31 to cause the wire to be gripped between blocks 33, 34 and the idle feed roller 6 is raised to stop the feed. At the bending station B, a length is cut by a lever 49 from a soft steel wire 43 which is fed against a stop by rollers 46, 47, and placed in the rib, pressing tools, 50a, 50b, mounted on the levers 50, 51 then operating to bend the rib material around the wire at 55, 56, 57, Fig. 11, and flatten the inlaid wire at 58, 59. After a combined shearing and punching tool 64, 65 has severed the foremost rib from the strip by cutting out a portion between the two ribs and simultaneously shaping the rib ends 3, and punched out the holes 67, Fig. 1, in the adjacent ends of the first two ribs, the completed rib falls into a channel 67a, thus releasing the pressure on the stop 11  which returns to the left. The clutch is thereby disengaged and the clamping device opens, allowing the strip feed to operate to push the strip once more against the stop 11. The devices A, B and C are adjustably mounted to allow of the manufacture of different lengths of ribs.
Patent GB-388015-A (GB)
Title: Improvements in and relating to electric regulating systems
IPC: H02P7/34
Filed: 1931-05-13
Abstract: 388,015. Dynamo-electric machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 13, 1931, No. 14176. Convention date, May 13, 1930. Void [Published under Sect. 91 of the Acts]. [Class 35.] Exciting.-The field f of a Ward Leonard generator g is connected in parallel with an auxiliary motor z driving a flywheel m which smooths the changes in the field when regulating resistances ware removed or inserted. The motor z may run light, or may be loaded in dependence on the main motor current. The field variations of a shunt-wound motor may be similarly controlled by connecting the auxiliary motor across the regulating resistances.
Patent GB-119520-A (GB)
Title: Improvements in and relating to Electric Welding Apparatus.
Inventor: WOODBURN RICHARD FRANKLIN
IPC: B23K11/11
Filed: 1917-10-02
Abstract: 119,520. Woodburn, R. F. Oct. 2, 1917. Heating by electricity.-Spot welding of metals is carried out by electrodes 2, 3, the upper one of which is movable by treadle mechanism 7 against the action of springs or counterweights. The electrodes are in the secondary of a transformer circuit which includes a primary 10, the number of operative turns of which is adjustable by a switch 11. The treadle 7 may control a switch for the current, or the current may be controlled by a sliding contact which is adjustably connected to a crank-pin on a disk driven by variable gear which is preferably in the form of a variable friction drive comprising a driving roller which is radially adjustable by lever mechanism relatively to a friction disk driven by the roller. The work can be adjusted during the intervals the current is off, and a visual or audible electric signal is used to indicate when the current is on. A modified form of contact-breaker, which can be applied to several machines, comprises a worm-driven shaft 30, Fig. 4, on which is a disk 31 co-operating with a fixed brush 33 and provided also with a rotating brush 35 which moves on the cylindrical periphery of a commutator composed of metallic segments 38 separated by insulators 39 and provided with sockets for receiving jacks 40 which can be connected up as desired to sockets 41 which are attached to the several welding-machines.
Patent GB-559505-A (GB)
Title: Improvements in and relating to windshield wipers
IPC: B60S1/48
Filed: 1942-10-09
Abstract: 559,505. Electric heating resistances. FIRESTONE TIRE & RUBBER CO. Oct. 9, 1942, No. 14221. Convention date, March 16. [Class 39 (iii)] [Also in Group XXIII] A windscreen wiper 12 which is especially applicable for use on aircraft is constructed of an oscillating frame 14 of arch-shaped section lined with vulcanized rubber 31 and fitted with a pair of rubber wiping blades 45 which are formed with metal casings 46 which are a press fit in the frame and are adapted to contact electrical conductors 42 embedded in the rubber 31 and also to contact the brass linings 48 of a layer of conductive rubber 47 which generates heat when the conductors 42 are put into electrical connection with leads 66, 68, Fig. 2 (not shown), by means of conductors 39 connected to a metal rod and a concentric metal tube separated by insulator sleeves and held in place on a frame 11 connected to the triangular plate 13 on which is mounted the driving-sleeve 24 for oscillating the wiper. A nut 69 holds the conducting rod and tube in place. The frame 14 oscillates about a pivot 19 eccentric to the driving-sleeve 24 which transmits motion to the wiper by means of a pivoted arm 25 and a sliding shoe 29. De-icing fluid such as alcohol is supplied from an inlet tube 52 mounted in the frame 11 to a tube 36 flexibly connected to the lining 31 of the frame, an extension 43 of the duct being arranged to deliver the fluid into a passage between the upper ends of the wiper elements and the lining 31. The fluid is fed as desired from a source under pressure, and it passes to the screen via transverse grooves 50 in the inner adjacent ends of the metal casings 46.
Patent GB-448960-A (GB)
Title: Improvements in or relating to apparatus for crushing coal, ores, rock and other materials
IPC: B02C4/12
Filed: 1935-05-15
Abstract: 448,960. Roller - and - breast mills. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Wetter, J. W. ; Robertsdale, Pennsylvania, U.S.A.- [Representative of Rockhill Coal & Iron Co.]) May 15, 1935, No. 14276. [Class 59] Coal &c. is broken by a spiked or corrugated roller or rollers freely suspended above a conveyer having a substantially straight line movement, the gravitational movement of each roller toward the conveyer being limited by stops which maintain the spikes above the surface of the conveyer. Succeeding rollers may have shorter spikes more closely spaced and may be spaced a shorter distance from the conveyer. As shown, a spiked, fluted, &c. roller 7 is suspended on an arm 9 pivoted at 10 and adjustably positioned for a rising and falling movement above the conveyer belt 2a by a stop 12. Coal &c. is fed by a shoot 1 to the travelling belt and is crushed by the roller 7 which is rotated by the material on the belt. The roller may be weighted and a series of rollers employed at different distances from the belt and having spikes of different size and pitch.