baber/WOPTO huggingface dataset:
Patent GB-800800-A (GB)
Title: Improvements in or relating to waveguide isolators
Inventor: HAWKES LEONARD FRANK
IPC: H01P1/37
Filed: 1956-04-25
Abstract: 800,800. Non-reciprocal waveguide devices. MULLARD RADIO VALVE CO., Ltd. Oct. 24, 1956 [April 25, 1956], No. 12696/56. Class 40 (8). A waveguide isolator comprises a length 1 of rectangular waveguide provided with two sheets of ferrite material, one sheet 13 being disposed against and in contact with one of the narrow walls of the waveguide and the other sheet 12 being spaced away from the opposite narrow wall and having a power-absorbing card 6 attached to its inner face. The ferrite sheets are polarized by a magnetic field H perpendicular to the broad walls of the waveguide. The effect of the polarized sheets is to displace the electric field to one side of the central longitudinal plane of the guide for one direction of propagation and to the other side for the reverse direction of propagation. Thus different amounts of energy are absorbed by the card 6 for the two directions of propagation. The ferrite sheet 12 may be supported from the side wall of the guide by one or more spacers 17 of mica. Alternatively, the spacers may be omitted and the edges of the sheet secured, e.g. with an adhesive, to the broad walls of the guide. The ferrite sheets are rectangular in shape and may have their shorter edges bevelled. They may have different thicknesses. The card 6 is rectangular and is disposed with its longer sides parallel to the waveguide axis.
Patent GB-271635-A (GB)
Title: Improvements in liquid containers and density determining means for use therewith
IPC: G01N9/14
Filed: 1926-05-18
Abstract: 271,635. Linebarger, C. E. May 18, 1926. Charge indicators.-The cover of the cell of a storage battery or other liquid container carries a transparent chamber containing specific-gravity indicating floats, and into which a portion of the liquid can be raised or rises above the level of the liquid in the cell. In the arrangement shown in Fig. 1 a. nipple 13 on the cover 11 dips into the liquid in the vessel 12. Above the nipple 13 a chamber 10 is fixed to the cover 12 and contains a piston 16 with a hollow rod 17. On closing the rod 17 with the finger and raising the piston 16 liquid is drawn into the chamber 10, and floats 19 indicate its specific gravity. A rubber ball or the like may be substituted for the piston. The nipple 13 may be replaced by an extension of the chamber 10. The chamber may be mounted in a vent cap. Arrangements in which the chamber slides in the opening in the cover are also described. In the form shown in Fig. 7 the liquid is raised above the general level in the chamber by capillary attraction. It consists of a fine tube 70 with an opening 76 in its side suspended from the cap 71 by means of a slotted disc 73.
Patent GB-565176-A (GB)
Title: Improvements in internal combustion and steam turbines
IPC: F01K21/04
Filed: 1942-09-10
Abstract: 565,176. Internal-combustion turbines. STANLEY, G. W., and WILD, F. Sept. 10, 1942, No. 12762. [Class 110 (iii)] Steam generated in water jackets of combustion chambers C is used in the combustion turbine A, or may be directed to a separatesteam turbine driving the same shaft B, or another shaft. Air is supplied by a compressor D<1> to an inlet c, and fuel by a pump C<1>. A valve E controls the entry of the gases into the turbine. Water is sprayed into each jacket by a pump G. Steam from the jackets may be collected in an accumulator G<1> and supplied under control of a valve g<1> to the turbine, or to another. Steam may also be injected through nozzles h in a condenser H. The accumulator may be dispensed with. Specification 491,616 is referred to. The Provisional Specification states that each combustion chamber may have internal spiral fins or ribs, the edges of which become very hot and fire charges of gas, after initial firing by electrical means.
Patent GB-706156-A (GB)
Title: Apparatus for spray varnishing hides and skins
IPC: B05B12/12
Filed: 1952-05-21
Abstract: 706,156. Photo-electric control of hide spraying. GIRAUDO, E., GIRAUDO, G., AMMENDOLA, P., AMMENDOLA, S., PEPINO, L., and PEPINO, S., [trading as CONCERIE ALTA ITALIA GIRAUDO, AMMENDOLA & PEPINO]. May 21, 1952 [May 26, 1951], No 12815/52. Class 40 (3) In a machine for spraying hides, a carriage on which are mounted a light projector and photoelectric cell is reciprocated traversely of a conveyer on which the hides are carried so as to control the operation of a spraying head, which is also mounted on the conveyer. As shown, the conveyer consists of an endless belt 1 formed of wire gauze, or of sets of bars or articulated frames. The conveyer is driven by a motor 3 through a chain and pulley arrangement and the motor also reciprocates the carriage 10 through a chain 17, bevel gearing 14 and a further chain, not shown, which passes over sprockets at opposite ends of the carriage. The light source 23, photo-cell 24, and spraying head 19 are carried by a vertical member which carries ball races running against a fixed guide and a vertical slot with which a pin carried by the chain coacts to reciprocate the carriage. When no hide is in position the light beam is reflected from a mirror 25 running the full width of the conveyer and received by a photo-electric cell which through a relay and electromagnetic valve mechanism cuts off the air and colour supply to the spraying head. When the hide is in position the spray is switched on. The spray falls on the hide slightly before and leaves it slightly after, the light beam. Air enters a shroud 7 inside which the spraying takes place, through a pipe 29 near the mirror 25 and is withdrawn through a tube 30. Thus the deposition of colour on the mirror is prevented.
Patent GB-560987-A (GB)
Title: Improvements relating to rotary internal combustion engines
IPC: F02B53/00
Filed: 1942-09-14
Abstract: 560,987. Rotary engines. EVELEIGH, E. F. Sept. 14, 1942, No. 12905. [Class 110 (ii)] A rotary engine as illustrated has outer rotors D, C, C<1>, D<1>, with vanes X, geared to a central abutment rotor A, all rotors being tapered axially. Contact is maintained by axial spring pressure along the abutment rotor shaft. Packing rings are provided. The rotors D, D<1> are power units and rotors C, C<1>, compressor units. Fuel enters through ports M and burnt gases are exhausted through ports L. Steam may be used as the motive fluid.
Patent GB-401321-A (GB)
Title: Improvements in electric lamp fittings for illuminated signs
IPC: H01R33/02
Filed: 1932-05-06
Abstract: 401,321. Electric - lamp holders. LONDON SAND BLAST DECORATIVE GLASS WORKS, Ltd. and BEAGLE, E. W., 180¢, Burdett Road, London. May 6, 1932, No. 13140. [Class 39 (ii).] In lampholder fittings for tubular electric incandescent lamps for illuminated signs current is supplied to the lamps by conductors 5, Figs. 2 and 4 which are either moulded into a rigid batten of insulating material such as ebonite or synthetic resin, or laid or embedded between, separate lengths 1, 1a, Fig. 1, of the insulating material made in box or strip form and screwed or otherwise fixed together, the lamp sockets 6 being attached to the composite batten by screws 10 which are connected to the respective insulated conducting strips 5 by short lengths of wire 14 sunk into the insulating material and covered by a mastic stopping. One end of each wire connector 14 is held beneath the head of a screw 10, while the other end is secured to a conducting strip 5 by a screw 16. A metal reflector 3 may be secured behind the tubular lamp 8 by screws 2 which also secure the insulating strips 1, 1a together. The lamp sockets 6 are made of insulating material with an inner metal member 12 into which the screw 10 is screwed, a single contact plunger within the member 12 being controlled by a helical spring 13. A series of lamps may be mounted in a line upon a long composite strip, with one end of each lamp in contact with a spring plunger and its other end against the rigid socket of the adjacent plunger, or each socket may be modified to contain two oppositely directed plungers. Split pins 18 are provided to plug the device on to the supply mains. The conducting strips 5 are preferably cut shorter than the insulating strips 1, 1a to enable their ends to be insulated by a mastic stopping 17, Fig. 2.
Patent GB-314174-A (GB)
Title: Process and apparatus for simultaneously making sugar and paper pulp from cane
IPC: D21B1/06
Filed: 1928-05-04
Abstract: 314,174. Fairweather, H. G. C., (Vazcane Process, Inc.). May 4, 1928. Pulp, preparation of.-A pulp suitable for paper making is obtained by grinding or abrading sugarcane into individual fibres or aggregates of relatively few fibres in the presence of a liquid, with removal of the sugar. A hopper 1 contains the sugar-cane which comes in contact with a grindstone 2 running in a receptacle 3 containing a solvent liquid, preferably distilled water from the condensed vapours from the evaporators in the sugar house. The pulp passes after screening to an agitator or mixing box 4 containing blades 5. The overflow from the box 4 passes into a. separator 6 in which a cylindrical screen 7 revolves partially submerged in the pulp so that the liquid passes through the screen and is drawn off through the opening 8, while the solid portion of the pulp is deposited on the screen, carried out of the bath and scraped by doctors 9 into a second mixing box 4. The pipe 10 discharges the weak sugar solution from a subsequent separator into this mixing box. Any number of separators and mixing boxes may be used, fresh water being directed into the last mixing box. The liquid from the second separator is conducted through the pipe 10<a> to the grinder 2, where it is sprayed uniformly over the surface of the grindstone. The pulp is discharged from the last separator into a conduit from whence it may be taken directly to a paper making plant.
Patent GB-844836-A (GB)
Title: Improvements relating to collapsible umbrellas
IPC: A45B19/04
Filed: 1959-04-17
Abstract: 844,836. Telescopic umbrellas. BREMSHEY. F., and EICKHORN. K. H.. [trading as BREMSHEY & CO.]. April 17, 1959 [May 2. 1958]. No. 13212/59. Class 134 In an umbrella frame, which comprises telescopic stick and ribs, main struts pivoted to the outer rib parts and to a main slider, and auxiliary struts pivoted to the main struts and to an auxiliary slider located between the main slider and the umbrella crown, a checking device, which comprises a resilient member which co-operates with a locking nose mounted on the stick, is provided to temporarily limit movement of the auxiliary slider along the stick during the opening of the frame. The resilient member is stressed by the locking nose during the checking process until the tension becomes so great that the member slides off the locking nose thereby releasing it. As shown, the resilient member is constituted by a resilient steel sleeve 32 formed with a slit 33 and forming part of the auxiliary slider, which co-operates with a locking nose 26 which also serves to lock the stick parts 10, 11 in the extended position. When the umbrella is opened, upward movement of the auxiliary slider is checked until the main slider moves upward, forcing the frame to open correctly, whereupon the tension becomes so great that the edges 36 of the slit 33 are forced apart to allow the auxiliary slider to pass beyond the locking nose. The spring action of the sleeve 32 may be reinforced by a spring 35. The sleeve 32 is formed with a funnel-shaped opening in the region of the slit 33 so that movement of the auxiliary slider is not checked when the umbrella is closed.
Patent GB-831600-A (GB)
Title: Improvements in or relating to electronic testing apparatus for polarised relays
Inventor: MARTIN RONALD GEORGE JOHN
IPC: G01R31/327
Filed: 1955-05-09
Abstract: 831,600. Cathode ray oscillographs; electric pulse testing. PLESSEY CO. Ltd. May 3, 1956 [May 9. 1955], No. 13295/55. Class 37. The operating coil of a polarized relay A under test is energized over variable resistance Rl and current meter M from a sinusoidal alternating voltage supply to change over contacts A1 in each direction once per cycle. During each changeover the disconnection of the moving contact from the fixed contacts enables capacitance C1 to charge in series with resistance R2 from a D.C. source to impulse the Y plates of a cathode-ray tube, whose X plates are energized from the alternating voltage source whereby there are displayed two adjacent pulses separated by an interval; the edge of each pulse coinciding with the opening of A1 being greater in amplitude than the edge coinciding with the closing of A1 by reason of the discharge of the capacitance over R2 while the contacts are open. Unidirectional pulses derived from the alternating supply over rectifier bridge MRA, MRB, MRC, MRD excite a trigger circuit to supply to the Y plates successive differentiated pulses whose edges correspond to zero voltage points in coincidence with the centre of symmetry of the timebase, to produce a marker. A phase shift circuit comprising capacitance C2 and variable resistance R4 enables the leading edge of one pulse to be adjusted to coincidence with the marker, after which the contacts of the relay may be adjusted until the leading edge of the other pulse is coincident therewith; the process being repeated until the leading edges of both pulses are coincident with or symmetrically disposed with regard to the marker. For measurement of the relay contact transit time operation of key K enables a phase shift network comprising capacitance C3 and variable resistance R5 calibrated in terms of transit time to adjust the marker pulse to coincide successively with the leading and trailing edges of a selected pulse. Variable resistance R3 shunting the input to the rectifier bridge in series with a capacitance enables the marker pulse to be accurately centred; and sensitivity may be improved by increasing the alternating voltage applied to the X plates. The Provisional Specification describes a modification wherein the marker pulse is applied to the oscillograph grid to brighten the trace.
Patent GB-133520-A (GB)
IPC: A01C9/00
Abstract: 133,520. Buchtrup, H. T. Nov. 18, 1918. Dibbling-apparatus; ploughs; potato planters.- Plough attachments for use in planting potatoes consist of appliances for making a groove in the soil turned over by the plough and for making holes in the loose earth formed by cutting the groove. Two shares or plates f, g, Fig. 2, are attached to a fork-shaped frame d which is pivoted on a rod c clamped to the plough handles. The share f cuts the groove and the plate g smooths the upper surface of the ploughed land. The lower part of the shart f is notched and the front portion e bent out laterally. The holes are made by two knobs j on a toothed wheel h journaled in the frame d. A cutter m makes a groove in the ground to serve as a guide for the cultivator before the potatoes come up. In the modified hole-making appliance shown in Fig. 3, four spades or blades n are adjustably secured on four spokes by means of slots and bolts. The groove in the soil may be cut by a disk &c. instead of the share f.
Patent GB-706535-A (GB)
Title: An improved method of and apparatus for determining gases contained in metals
IPC: G01N33/20
Filed: 1952-05-27
Abstract: <PICT:0706535/III/1> In the determination of gases contained in metals by heating the metal under high vacuum, the vacuum is maintained during heating by means of a cooled adsorbent which adsorbs the gases liberated, and the gases are then released by allowing the adsorbent to rise in temperature and are pumped to a gas-collecting vessel.  As shown the specimen 1 in a quartz tube 2 is heated by a movable electric oven 5, and vacuum is applied through tube 10 by means of mercury air pump 11, 12, 13 which includes a tube 14 leading through a pneumatic trough 15, containing mercury, to a gas-collecting vessel 16.  The adsorbent container 19 is cooled by raising Dewar vessel 18 containing, for example, liquid air.  When heating has been completed, the specimen is allowed to cool, Dewar vessel 18 is removed, and the gases are pumped by means of pump 11, 12, 13, to vessel 16 from which they are transferred to a gas analyzer.  Suitable adsorbents are active carbon, or dehydrated chabazite or other zeolite minerals for hydrogen.  In a modification Fig. 2 (not shown), two additional cooled adsorption vessels are provided to produce the original vacuum.  Reference is made to the determination of hydrogen in steel.
Patent GB-549895-A (GB)
Title: Improvements in or relating to the treatment of vulcanised rubber articles and the products obtained thereby
IPC: C08J5/02
Filed: 1941-10-20
Abstract: 549,895. Preserving indiarubber. UNITED STATES RUBBER CO. Oct. 20, 1941, No. 13451. Convention date, Oct. 30, 1940. [Class 70] The tensile strength and the resistance to ageing of vulcanized articles made directly from aqueous dispersions of rubber are increased by soaking them in a monohydric or dihydric aliphatic alcohol to which an acid or alkali may be added. Denatured ethyl alcohol containing a small proportion of acetic acid is preferred, but ethyl butanol, diethylene glycol, amyl and methyl alcohols are also suitable, and potassium hydroxide may be used in place of the acid.
Patent GB-528374-A (GB)
Title: Improvements in or relating to process of manufacturing alkaline silicates in powder form
Inventor: KUSMAN DAVID
IPC: C01B33/32
Filed: 1939-05-05
Abstract: 528,374. Alkali silicates. FLORIDIENNE, J. BUTTGENBACH & CO. SOC. ANON. May 5, 1939, Nos. 13468 and 13469. Convention dates, May 5, 1938, and April 13, 1939. [Class 1 (iii)] Alkali silicates are obtained in the form of crystalline soluble powders by treating a solution of a silicate with a volatile precipitating or coagulating agent, e.g. an alcohol or acetone, removing liquid from the coagulate, e.g. in a press or filtering bag, reducing the resulting cake to powder and drying the powder with continuous stirring at not more than 45‹C. A powder obtained from a silicate solution containing about one molecule of Na 2 O to 3 parts SiO 2  may be dried to give a product containing 6 molecules of water of crystallization. Further dehydration may be effected at temperatures up to 100‹C.
Patent GB-141946-A (GB)
Title: Improvements in and relating to oil immersed water cooled electric transformers
IPC: H01F27/12
Filed: 1919-05-28
Abstract: 141,946. Lulofs, W., and Ferranti, Ltd. May 28, 1919. Transformers.-Oil-immersed transformers are cooled by circulating water in such a manner that the water in the circulatory system is at a lower pressure than the body of oil in the transformer casing. The object is to prevent water from escaping into the oil tank in the event of a leak. Fig. 1 shows a siphon arrangement for this purpose. Water circulates upwards through a helical coil of piping s supplied from a constant-level tank o. The siphon action is started by pouring in water through a funnel m. In case of a leaky pipe, oil is forced into the tank o, and the head of oil is gradually lowered until it reaches the level of the leak, when air enters the pipe and stops the siphon action. A float on the oil may call attention to this by causing a bell to ring.
Patent GB-747311-A (GB)
Title: Improvements relating to goggles for aviators
IPC: G02C7/16
Filed: 1954-05-10
Abstract: 747,311. Goggles. FRANCIS, G. C., and PATTERSON; N. T. May 10, 1954, No. 13510/54. Class 97 (1). A device for use in instruction of aviators comprises an opaque hood adped to be secured to the aviators head and having a substantially planar front wall, spaced from the eyes and provided with horizontally elongated sight openings by which the aviator's field of vision is limited to the aircraft instrument panel. As shown, the hood 22 has at its rear a bead 23 of yielding material to engage the face whilst its planar front portion 24 is provided with sightopenings 26 and a forwardly projecting shield structure 27 whereby, in the position shown in Fig. 9, vision is limited to the instrument panel 12. If the head is raised to permit vision out of the aircraft the panel 12 becomes obscured by the portion 30a of the hood. The lower portion of the front wall 24 may be cut away to permit vision of a map together with the panel 12, as shown in Fig. 9.
Patent GB-596992-A (GB)
Title: A traveller's laundry case
IPC: A45C5/14
Filed: 1945-05-30
Abstract: 596,992. Domestic drying-cabinets. JESSIMAN, H. M. May 30, 1945, No. 13515. [Class 34 (i)] [Also in Group XVII] A portable laundry in the form of a suitcase 10 comprises supports 16 for drying clothes, an air inlet 26 with fitting extending externally for accommodating an electric blower 27 of the hairdryer type carried when not in use in clips in the case. A deflector plate 59 against which air from the inlet 26 is diverted, distributes it around the case to the outlets 13. Foldable legs 22 may support the case and the usual laundry fittings are detachably mounted therein. Specification 523,437 is referred to.
Patent GB-937213-A (GB)
Title: Crucible arrangements in induction furnaces
Inventor: MOORE JOSEPH EDWARD
IPC: H05B6/24
Filed: 1961-04-14
Abstract: 937,213. Crucibles. WILD BARFIELD Ltd. April 16, 1962 [April 14, 1961], No. 13601/61. Class 82. A replaceable crucible assembly comprises an outer sheath 6 of a non-magnetic metal of high resistivity, e.g. stainless steel, which has longitudinal slits 17 in it to prevent flow of induced currents, an inner crucible 2 and a rammed lining 1 of a thermally insulating powder which together with a shaped insulating brick 3 is enclosed in a lining bag 5 of silica or glass cloth. Plates 10 and 8 are provided 8 being removable so that the powder can be rammed from the bottom. Heating is accomplished by means of inductive heating means 4.
Patent GB-528467-A (GB)
Title: Improvements in apparatus for the treatment of articles with liquids
IPC: B08B3/06
Filed: 1939-05-08
Abstract: 528,467. Cleaning metals. WACKER GES FUR ELEKTROCHEMISCHE INDUSTRIE GES., A. May 8, 1939, No. 13688. Convention date, Feb. 27. [Class 82 (ii)] In an apparatus for the treatment of articles with liquids a basket 9 containing the articles is carried by a frame 7 supported on the conveyer belt 5 and provided with a boss 10 which as the basket is immersed in the bath by the motion of the belt, engages with guides 11 and then with a pivoted lever 2. The lever is rocked by mechanism outside the bath 1 so that the frame and basket are rocked to and fro in the bath. When the basket is fully immersed the motion of the conveyer chain may be temporarily stopped so as to prolong the duration of immersion. More than one basket may be immersed at once and in the case of several baths each is provided with a pivoted rocking lever, the several levers being coupled together. The immersion and lifting of the basket may be effected by hand, provided that in the immersed position the basket is engaged with the rocking lever.
Patent GB-1020356-A (GB)
Title: Transducer
Inventor: DREW DENIS ARTHUR
IPC: G01L1/22
Filed: 1964-04-02
Abstract: 1,020,356. Measuring strain electrically. ROLLS-ROYCE Ltd. April 2, 1964, No. 13722/64. Addition to 1,008,627. Heading G1N. A device measuring the strain in a pressure vessel comprises a frame 11, 12 surrounding the vessel and mechanically connected to it by a plurality of struts 15 with one or more strain gauges on reduced cross-section parts 13 of the frame (the foregoing as in the parent Specification), with the added feature of one or more thermistors 24 contacting the vessel, and a bridge containing the strain gauges 14 and thermistors 24 (Fig. 4 not shown) or two bridges in series one containing the gauges 14 (Fig. 3) and one containing the thermistors 24. The output of the one bridge, or the combined output from the two, provides an amplifier 31 and indicator 32 with a signal representing the strain independent of the effects of temperature on the vessel, on the frame, and on the gauges. Self compensating strain gauges may be used.