baber/WOPTO huggingface dataset:
Patent GB-841320-A (GB)
Title: Improvements in or relating to engine mountings
Inventor: MCLEAN DONALD
IPC: B64D27/04
Filed: 1956-04-09
Abstract: 841,320. Engine mountings for aircraft. ROLLS-ROYCE Ltd. April 5, 1957 [April 9, 1956], No. 10811/56. Class 4. [Also in Groups XXVI and XXXII] An engine mounting for attaching an engine component 11 (stated in the preferred embodiment to be an annular oil tank which encircles the compressor casing of a propeller-driving gas-turbine engine) to part 10 of an airframe bulkhead comprises four similar flexible mounting devices 12 each secured to component 11 by lugs 17 and pairs of struts 19 and brackets 20, and to part 10 by pairs of struts 31 and brackets 33. The connections between struts 19 and devices 12 and brackets 20 comprise partspherical connections which may be locked in selected positions and the lengths of the struts may be adjusted, to suit individual engines. Each device 12, which also may be angularly adjusted to suit individual engines, comprises an outer sleeve 13 and an inner sleeve 25 bonded to a rubber bushing 22. Sleeve 13, which is secured to struts 19, has an end wall 14 formed with attachment lugs 15 and an opposed flange for the attachment of a collar member 24 formed with an annular flange 24a which limits excessive axial movement of sleeve 25. A metal liner 21, bonded to the outer surface of bushing 22, is clamped axially between a flange 23 on sleeve 13 and the member 24. Sleeve 25 is provided internally with a frustoconical flange 26 formed on its internal surface with a part-spherical seating 27 which cooperates with a part-spherical surface 28 on a collar 29 fitted over the cylindrical end of a tapered extension of a member 30 to which struts 31 are attached. Washers 35 of selected thickness may be fitted to ensure that devices 12 lie in a common plane. The faces 27 and 28 are maintained in contact by a bolt 36 and nut 37, which has a splined connection with member 30. In a further embodiment, the cylindrical seating for collar 29 is formed on the flange 26 and the part-spherical surface 28 on the end of the conical extension of member 30.
Patent GB-700928-A (GB)
Title: Improvements in or relating to aerials
Inventor: STRAFFORD FREDERICK RICHMOND W
IPC: H01Q5/48
Filed: 1951-05-08
Abstract: 700,928. Aerials ; aerial coupling arrangements. BELLING & LEE, Ltd. April 28, 1952 [May 8, 1951], No. 10832/51. Classes 40 (5) and 40 (7) An aerial system for receiving two radio transmissions polarized at right-angles to one another and with the radio-frequency of one approximately twice that of the other (e.g. a vertically polarized television transmission at 45 Mc/s and a horizontally polarized V.H.F. transmission at 90 Mc/s) comprises two dipole aerials each comprising two conducting elements of equal length disposed substantially in line with one another and at right-angles to the other pair, the elements of one pair being approximately half the length of the elements of the other pair, and the inner ends of all the elements being closely spaced and so interconnected that the inner end of one element of one pair is connected to the inner end of an element of the other pair and the remaining two inner ends are similarly connected the two junction points being connected to respective conductors of a transmission line. As shown in Figs. 1 and 2 the dipole elements are mounted within an insulating junction box 10 which itself is supported by a hollow tubular element 33. The inner ends of the aerial conductors are connected together as indicated by conducting plates 25, 26, the plates being connected by terminals 31, 32 to the conductors of a transmission line which passes down the element 33 to the receiving apparatus. Fig. 5 shows an alternative manner of constructing the aerial system by attaching elements 43, 44 to a conventional vertical dipole. Figs. 6 and 7 show aerial constructions employing passive reflecting elements. The aerial may be arranged to feed a number of receivers, the single transmission line from the aerial being connected to a splitting device comprising a junction box having a central connecting post from which resistors, having values which may be derived from a formula given in the Specification, are connected to the aerial transmission line and also to transmission lines leading to the receivers. Specification 652,184 is referred to.
Patent GB-623276-A (GB)
Title: Preparation of carboxyalkyl ethers of cellulose
IPC: C08B11/12
Filed: 1947-04-23
Abstract: A carboxyalkyl ether of cellulose is obtained by subjecting cellulose to the action of a carboxyalkyl halide in presence of strong alkali and in presence of sufficient isopropyl alcohol or tert.-butyl alcohol to maintain the cellulose ether formed in a solid undissolved state throughout the reaction.  The product is readily obtained from the reaction medium by draining off or centrifuging off the liquid and washing.  The proportion of alcohol used may be 5-50 parts for each part of cellulose.  The ratio of alcohol to water in the reaction system is preferably greater than 1.5 parts of alcohol to one part of water.  The ethrrifying agent may be chloracetic, chlorpropionic, or chlorbutyric acid, or a sodium, or potassium salt thereof, or a corresponding bromine or iodine compound.  In an example, purified cotton linters are immersed in tertiary butyl alcohol and the resulting slurry is vigorously stirred while caustic soda solution of 30 per cent strength is slowly added.  Agitation is continued and the temperature is gradually reduced from about 30 DEG to 17 DEG  C. Solid monochloracetic acid is slowly added and the mixture is heated to 55 DEG  C.  The reaction product remains fibrous and similar in appearance to the original shredded linters.  The liquid is drained from the fibrous product which is then stirred with aqueous methanol, neutralized with acetic acid, drained, washed with aqueous methanol, and then dried.  The final product is soluble in water.  The reaction is preferably carried out with 0.01-3.0 parts of etherifying agent per part of cellulose. Preferably there are 0.5-1.0 mols. of etherifying agent per mol. of free alkali.  The alkali may be present in the ratio of 0.1-2.0 parts per part of cellulose. Etherification may be effected at 25-100 DEG  C.
Patent GB-1269194-A (GB)
Title: Electroplate honing method and apparatus
IPC: C25D5/22
Filed: 1970-03-06
Abstract: 1,269,194. Honing apparatus. MICROMATIC HONE CORP. 6 March, 1970 [1 July, 1969], No. 10903/70. Heading B3D. [Also in Division C7] An electroplate honing apparatus for finishing the surface 23 of a workpiece 16, e.g. the interior bore surface of a gear, in three stages comprises: a conductive honing tool 14 supporting at least one abrasive member, e.g. honing stones 22 adjustable outwardly from the body by moving a cone 30 connected via rod 31 to a piston 33 slidable in a chamber 35 by fluid pressure through lines 37, 39 in the tool; means, e.g. a pump for flowing plating solution 24, and means for reverisbly passing D.C., between the tool 14 and surface 23; and means for moving the tool with abrasive member(s) over the surface 23 in a combined reciprocating and rotating motion (as shown) to remove metal from the surface electrochemically and mechanically during a first cleaning stage. The three stages are: (a) surface cleaning (removing metal) by electrochemical and mechanical honing with stones 22 in high pressure state, the tool being cathodic and the workpiece anodic; (b) metal electrodeposition, e.g. by plating with Cu, bronze, Co, Ni or Sn, with pressure on the stones reduced and the current flow reversed (workpiece cathodic); and (c) accurate mechanical abrasion with no current flow and pressure on the stones increased. The apparatus may also be used for finishing exterior surfaces of cylindrical or spherical objects and flat surfaces.
Patent GB-655197-A (GB)
Title: Direct current reinsertion circuits for television apparatus
IPC: H04N5/18
Filed: 1948-04-21
Abstract: 655,197. Television. RADIO CORPORATION OF AMERICA. April 21, 1948, No. 11004. Convention date, May 27, 1947. [Class 40 (iii)] Apparatus for direct-current re-insertion in television signals including periodic synchronizing pulses set upon pedestal pulses defining a " black " level comprises means for causing the trailing edges of the synchronizing pulses to shock-excite a resonant circuit from the output of which a train of delayed control pulses is derived, the control pulses being used to actuate a "clamp" circuit which periodically sets the signal level to a predetermined value. Owing to the fact that the control pulses are delayed with respect to the synchronizing pulses, the control pulses may be made to occur during the black-level portions of the pedestal pulses without any interference from the synchronizing pulses even although these may not be perfectly rectangular. Fig. 2 illustrates an arrangement for effecting direct-current re-insertion at the control grid of the modulating valve T4 in a transmitter. The output of amplifier T3, which comprises video signals plus synchronizing and pedestal pulses, is applied via condenser C1 to the grid of modulator T4 and also to the cathode of valve T5, which is so biassed as to pass only the synchronizing pulses. The anode circuit of T5 comprises the primary of the iron-cored transformer Tr1, the secondary of which is arranged, in series with condenser C3, between the control grid and cathode of paraphase amplifier T6. After the passage of a synchronizing pulse, the valve T5 cuts off and so does not load the transformer Tr1 which then oscillates at its resonant frequency, the output from the secondary of the transformer being, for example, as shown in Fig. 3. Owing to the flow of grid current, the condenser C3 is charged to the positive peak of the oscillatory output of the transformer and consequently clips the signal applied thereto, for example, at a level ec. The push-pull output of valve T6 is applied as shown to double-diode T7 which conducts during the control pulse intervals whereby the potential at the grid of modulator T4 is brought to that at the slider of potentiometer R7. Since the control pulses occur during the black-level portions of the signal, the black level is stabilized at the potential of the slider of potentiometer R7. The various bias potentials applied throughout the circuit are coupled to their points of application through ganged switches which may be switched to an alternative position to render the re-inserting circuit non-effective and cause a fixed bias to be applied to the grid of T4. This feature is intended for use when applying test signals to the transmitter.
Patent GB-129118-A (GB)
Title: Improvements in Mowing Machines.
Inventor: WELCH WALTER FREDERICK
IPC: A01D34/02
Filed: 1918-07-05
Abstract: 129,118. Welch, W. F. July 5, 1918. Lawn-mowers.-A mowing-machine comprises a ground engaging wheel 1 provided with a laterally-extending flange 2 and mounted loosely on a fixed axle 6 which supports a side plate 3, forming with the wheel 1 a housing for gearing driving the cutter-bar 14. An horizontal ledge 11 formed at the front of the plate 3 has secured to it the fixed cutter bar 13. The movable cutter bar is reciprocated by the action of a serpentine cam-groove 18 formed in the periphery of a camwheel 19, mounted loosely on the shaft 6 and driven from the ground wheel through gears 20, 21, 10. The cutter-bar is provided with a rod 15 projecting into the housing of the driving-mechanism and provided with a roll which engages in the cam groove. The machine may be manually operated or drawn by a horse.
Patent GB-128760-A (GB)
Title: Improvements in and relating to Mechanism for the Brakes of Motor Lorries.
IPC: B60T11/04
Filed: 1918-07-06
Abstract: 128,760. Hugh, P. G., and Scammell & Nephew, G. July 6, 1918. Brakes, arrangement and disposition of. - Relates to an arrangement of brakes on motor-lorries of the six-wheeled type having a front power chassis to which a lead-carrying trailer is pivotally c o n - nected by a turntable, and consists chiefly in means for facilitating the disconnexion of t h e trailer without affecting the adjustment of the brake mechanism. The brake lever a, Fig. 1, on the power chassis is connected to a bell-crank lever c, Fig. 3, mounted on a vertical pivot near the rear axle of the power chassis and operating a sliding rcd e carrying a slotted link engaging and allowing transverse play in a rod h pivoted to a second bell-crank lever l, Fig. 2, having an horizontal arm in operative contact with the bottom of a pin o passing through the hollow perch pin p of the turntable d. The operation of the brake lever thus causes the pin to rise, and, as its top is in operative contact with a third bell-crank lever s' connected to the brakes on the trailer wheels, the brakes of the trailer are applied from the power chassis, and the trailer can be connected or disconnected without affecting the adjustment of the brakes.
Patent GB-234467-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22B11/00
Filed: 1925-04-29
Abstract: 234,467. Niederbayerische Cellulosewerke Akt.-Ges., and Schneider, A. May 24, 1924, [Convention date]. Compound and composite boilers; tubes, water. - A high-pressure boiler having field-tube elements is combined with a low-pressure fire-tube boiler. One or more drums a, Fig. 1, placed above a locomotive fire-box have Field-tubes b depending into the fire-box. Water is supplied to the drums from the low-pressure boiler a<1>. According to the Specification as open to inspection under Sect. 91 (3) (a), Field tubes b depend into the fire-box of a boiler from drums connected to a transverse drum s<1>, Fig. 1, (Cancelled), which is in communication with the boiler a<1> through a tubular connection s. Each inner tube c is secured to a sieve n at the top of a drum and opens through transverse, passages g into the water space of the drum. The bottom end of each inner tube is fitted with a check valve d. This subject-matter does not appear in the Specification as accepted.
Patent GB-279717-A (GB)
Title: Improvements in washing or like machines for laundry purposes
IPC: D06F37/10
Filed: 1927-04-26
Abstract: 279,717. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). April 26, 1927. Washing-machines u:ith rotary receptacles.-In a. washing machine in which a perforated receptacle 31 is rotated within a stationary cylindrical casing 2, there is provided in one of the lower segments of the casing a circumferentially sliding door 7 through which the contents of the receptacle are discharged. A rubber or other packing member 6, Fig. 6, is secured around the sides and bottom of the opening in the casing and the sides of the door are pressed into close engagement with the side packing members by metal straps anchored at their upper ends and having eyes at the lower ends engaged by arms 12 on a shaft 11 which can be rocked by the linkage shown in Fig. 4 from a shaft 16 under the control of the operator. The shaft 16 also carries sleeve-like cams 16a for forcing the bottom of the door into engagement with the packing member at the bottom of the casing opening. A separate door is provided in the upper portion of the casing for loading the rotary receptacle which may be compartmented. The spring pressed locking bolt 33a Fig. 9 for the door of the rotary receptacle is retracted by a rack and pinion arrangement which is housed in a casing 34.
Patent GB-679716-A (GB)
Title: Improvements relating to the treatment of alginate powders
Filed: 1949-04-27
Abstract: Water-soluble alginate powders of improved solubility rates are made by taking particles of powder of water-soluble alginate and protecting them with a screening substance which remains in situ in the powder and, when the protected particles are placed in an aqueous medium, screens the alginate particles initially from the action of the medium until they have evenly dispersed as discrete particles in the medium.  This is effected by mixing the water-soluble alginate powder with a solution of a salt, the base of which gives an insoluble alginate, and the solvent of which solution is volatile and does not dissolve the water-soluble alginate, and then evaporating off the solvent to leave a powder, each particle of which consists of a core of soluble alginate coated with water-insoluble alginate, the salt being employed in such proportion that the product contains sufficient of the water-soluble alginate to bring the insoluble alginate into solution when the powder is mixed with water or alternatively by mixing water-soluble alginate particles with a highly concentrated aqueous solution of a salt, the base of which forms a soluble alginate and then drying the mixture.  By these means solution of the water-soluble alginate is inhibited until after the particles are dispersed in the aqueous medium so that when the water attacks them they are quickly dissolved Solvents for the first process may be lower alcohols and lower ketones and in an illustration sodium alginate of 40 mesh (the preferred particle size) is damped with an alcoholic solution of calcium chloride and the alcohol removed at 50 DEG  C.  The resulting powder dissolves in water in approximately three minutes.  In an illustration of the second process sodium alginate powder is treated with a saturated aqueous solution of sodium citrate and the powder dried at about 50 DEG  C. An aqueous solution of sodium phosphate may also be used. The products of the first process dissolve in times varying from one to fifteen minutes according to the intensity of the calcium treatment given.
Patent GB-768320-A (GB)
Title: Large agglomerate break up in fluidized coking of heavy hydrocarbon oils
IPC: C10B55/10
Filed: 1955-04-19
Abstract: 768,320. Coking heavy hydrocarbon oils. ESSO RESEARCH & ENGINEERING CO. April 19, 1955 [May 14, 1954], No. 11247/55. Class 55 (1). In a process for coking a heavy hydrocarbon oil, the oil is fed into a zone through line 2 on to a fluidized bed of-coke particles having an average particle of 100-400 microns maintained at a coking temperature of 850-1200‹ F. by circulation between zone 1 and a fluidized heating zone 10, coke being continuously withdrawn from zone 1 through a stripping zone 21 terminating in a conical porton 22 into which an inert stripping gas is introduced through line 20 at a velocity of 500-3000 ft./sec. to break up and elutriate in any large agglomerates, e.g. particles larger than <SP>3</SP>/ 8  in. diameter, collecting in the stripping zone. Stripping gas is also introduced into the zone 21 through line 3, suitable stripping gases being natural gas, flue gas, recycle gas and steam; 25-40 per cent of the stripping gas is introduced through line 20. Coke is passed to the heating zone 10 by line 8 and returned to the zone 1 by line 9. Surplus coke is withdrawn from the heating zone 10 through line 17. Air is supplied to the healing zone 10 through line 11, the zone being maintained at 100-300‹ F. higher than the temperature in the zone 1. Product vapours are withdrawn from zone 1 through line 4 and flue gases from zone 10 through line 16.
Patent GB-378854-A (GB)
Title: Improvements in and relating to reinforcing mats for concrete roads, buildings, and like structures
IPC: E01C11/18
Filed: 1931-04-16
Abstract: 378,854. Reinforced-concrete roads &c. DUNKER, L. H. A., Mole House, Esher Road, Walton-on-Thames. April 16, 1931, No. 11296. [Class 20 (iv).] In reinforcing mats for concrete roads &c. of the kind wherein zig-zag strips, placed on edge, are joined together at their engaging points to provide a mesh-like structure, the joining members comprise a base and an upstanding part having a slot therein to receive the strips, means being provided for retaining them therein. In one form, the member is formed by bending a blank with a central slot to form base parts 9, 10, Figs. 1 and 2, and an inverted U-shaped upright 8 the upper part of which is slotted to receive the straightened angles 15 of the strips, which are retained by nails &c. 11, or by continuous wires 16. Figs. 4 and 5 show a form in which the support consists of strip 17 the lower part of which is split, the parts being oppositely bent to form the base 18, 19 while the upper part is slotted for the strips, the slot having recesses for retaining loops 20, 21. In other similar forms, the recesses are on the outer edges of the top part, or the upper edge is bent over. Figs. 8 and 10 show a variation of the first modification in which the side members 8 are closed to form supports for connecting strips 29.
Patent GB-183239-A (GB)
Title: Improvements in traps for preventing the passage of effluvia from domestic or other sinks
IPC: E03C1/29
Filed: 1921-04-19
Abstract: 183,239. Evans, F. April 19, 1921. Traps.-A plate A is formed with one or more depending J-shaped pipes. The plate is adapted to rest at the top of a waste-pipe.
Patent GB-569263-A (GB)
Title: Improvements in incandescent electric lamp bulbs
IPC: H01K3/00
Filed: 1943-07-13
Abstract: 569,263. Electric incandescent lamps. REICH, O. E. July 13, 1943, No. 11357. [Class 39 (ii)] A reflecting surface which may be translucent is formed on a finished electric lamp by spraying or otherwise applying in suspension in a liquid or analogous medium a material unaffected by heat: the coating is subsequently baked say at 400‹ to 440‹F. Chalk or other calcium carbonate suspended in water glass (sodium silicate) is suggested.
Patent GB-166966-A (GB)
Title: Improvements in automatic train control systems
IPC: B61L3/12
Filed: 1920-04-23
Abstract: 166,966. Howe, W. K. April 23, 1920. Pilot valve apparatus.- Relates to valves actuated in part by fluid pressure control, the control of an auxiliary valve actuated by fluid pressure and by electricity. Fig. 1 shows one form of train apparatus in which, when the magnet 17<1> is de-energized, air pressure passes from the reservoir by way of pipe 9 and valve EPV to pipe 8 and the cylinder 4, and thence by way of the restricted passage 24 to the cylinder 26. The piston 5 is urged to the left and tends to open the driver's valve. If the driver holds the valve closed, the pressure in cylinder 26 after a time rises sufficiently to close the contact 30 and enables the magnet 17<2> to be energized by closing the contact K. If the driver causes or allows a service application of the brakes, a second restricted passage 32 is opened and the valve may be reset after a shorter interval. Fig. 6 shows a construction of the valve EPV. The port 11 to the pressure pipe 9 is normally closed by the spring 22, and the magnet 17 and the pipe 8 is open to atmosphere at the port 19. On de-energization of the magnet, the pressure at the port 11 opens the valve and acts on the piston 12 to keep open the port 14 until such time as the pressure is so reduced that the magnet can overcome its action and re-close the valve. Such a valve may be used in conjunction with an auxiliary reservoir fed through a small orifice which feeds the reservoir at a less rate than air escapes from the outlets on the cylinder 4 which may have an additional hand-controlled vent which the driver may open to allow earlier re-setting by the magnet, which in this case has one coil only, which is momentarily de-energized.
Patent GB-113731-A (GB)
Abstract: 113,731. Snodgrass, A. T. June 23 1917. Abrading-compositions.-Artificial abrasives, for use in the manufacture of grinding-wheels, abrasive cloth or paper, &c. are produced by mixing a raw material or materials containing a high percentage of alumina, for example bauxite or finelydivided waste natural emery or corundum, with flour glass as a flux, and reducing to a molten mass by heating to not less than 1700‹ C., preferably in a gas furnace. When cold, the mass is crushed and graded.