baber/WOPTO huggingface dataset:
Patent GB-403293-A (GB)
Title: Improvements in and relating to change-speed gears
IPC: F16H33/04
Filed: 1933-05-25
Abstract: 403,293. Variable-speed gearing. LOOS, H., 18, Franzensgasse, Vienna. May 25, 1933, No. 15204. Convention date, May 25, 1932. [Class 80 (ii).] Variable-speed gearing comprises an epicyclic train controlled by a cam 8, Fig. 4, a toggle 12, 13, a lever 17 of variable arm, and a control spring 18. The cam 8 is formed as a loose hollow wheel with internal eccentric swells 8<1>. It carries planets 4, Fig. 3, meshing with an internal gear 6 fast on a load shaft 2 and with a sun gear 3 fast on an aligned middle shaft 7. To the shaft 7 is secured the lever 17 connected at one end to the spring 18. A disc 9 fast on an aligned power shaft 1 carries rigidly two projecting pillars 10, 11. The pillar 10 is secured to the other end of the control spring 18. The pillar 11 is hinged to one toggle arm 12. The joint of the toggle 12, 13 carries a roller 19 pressed outwards against the cam wheel 8 by a spring 32. The disc 9 turns clockwise of Fig. 4, carrying the pillars 10, 11 with it. Thus the lever 17, shaft 7, and sun gear 3 turn with the same average speed as the disc 9. The roller 19 being thrust round inside the cam wheel causes the toggle arm 13 to reciprocate and so to oscillate the lever 17. The resistance of the spring 18 causes the roller 19 to exert a turning moment on the cam wheel 8 which resists the free escapement of the wheel 8, in consequence of the load wheel 6, Fig. 3, reacting to the effort of the gear 3. The escapement of the cam wheel 8 introduces lost motion which has the effect of adjusting the speed of the drum shaft 2 to the load thereon. The turning of the shaft 2 is rendered uniform by a flywheel, not shown. The escapement of the wheel 8 is automatically adjusted in accordance with the speed of the driving-disc 9 by sectors 14 pivoted at 14<2> on the disc 9 and weighted at 14<1>, Fig. 4. These sectors 14 are connected by a loose central pinion 27, and one of them carries a lug 15, through a hole in which the toggle arm 13 is guided. Speed of the disc 9 causes the lug 15 to move towards the shaft 7 and so shortens the lever-arm with which the toggle-arm 13 acts on the lever 17, and so magnifies the resistance of the spring 18 to the escapement of the cam wheel 8 and therefore changes the speed ratio. In a modified arrangement, there are stepped planet gears and the cam surfaces within the hollow cam wheel are of the sawtooth type.
Patent GB-144319-A (GB)
Title: Improvements in or relating to x-ray plant
IPC: H05G1/14
Filed: 1920-06-04
Abstract: 144,319. H³bers, G. April 8, 1916, [Convention date]. Addation to 144,318. Drawings to Specification. R÷ntgen-ray tubes.-In apparatus as described in the parent Specification in which the cathode of the X-ray tube is at or near earth potential, a tube with a heated or incandescent electrode can be used and the current of the circuit used directly for heating, the insulation of the heating circuit having to stand a low tension only. If the cathode is given a potential of 10,000 volts above that of the earth it will be sufficient for working the heating current to use a small dry transformer such as the smallest size of current transformer for measuring instruments.
Patent GB-138259-A (GB)
Title: Improvements in or relating to advertising devices
IPC: A47F5/11
Filed: 1919-06-17
Abstract: 138,259. Bulman, H. H., and Baumann & Co., P. A. June 17, 1919. Signs, supporting.-A collapsible show card comprises a vertical, horizontal, or inclined base card 10 having apertures 11, preferably formed by cutting out tongues 12, through which pass tongues 21 attached to cards 20 which bear details of the design. A strut 30, hinged to the underside of the base 10, has slots' 34 which surround the lower parts of the tongues 21 and are inclined to the base 10, so that on turning the strut 30 flat against the base 10, the cards 20 are also brought flat against the said base. A front card 31 hinged to the base is secured in an up. right position by a perforated tongue 32 engaging a projection 33 on the strut 30.
Patent GB-688054-A (GB)
Title: Improvements in or relating to bearing casings
IPC: F16C35/04
Filed: 1950-06-19
Abstract: 688,054. Bearing casings. LANVER. MEYER, J. June 19, 1950 [Jan. 31, 1949], No. 15284/50. Class 12 (i). Supporting means for a roller or other bearing is made from sheet-metal parts, the outer race 1 being a press fit in a tube 3 and being held in position by caps 4 which are also press fits in the tube, itself surrounded by sheetmetal parts 5 widened downwardly at 7 and having supporting surfaces 8. The parts 5 are shrunk or spot-welded on to the tube 3 and are connected together by clamps 9. As shown, the bearing may be lubricated through the chamber 17 or alternatively a collar may be drawn out of the tube 3, felt inserts being disposed between discs 11 and the caps 4 to prevent lubricant from leaking out after bearing. A support member 12 may be inserted between the parts 5, which are held apart by threaded bolts 14.
Patent GB-1530256-A (GB)
Title: Cooled blade for a gas turbine engine
IPC: F02C/
Filed: 1975-04-01
Abstract: 1530256 Gas turbine blades ROLLS-ROYCE Ltd 1 April 1975 [8 April 1974] 15310/74 Heading F1T A cooled gas turbine blade comprises an aerofoil portion having a longitudinal cavity 22 within which a cooling air entry tube 28 is housed, a separate resilient member, e.g. a tube 36 having a longitudinal split 37, being trapped between the tube 28 and the interior surface of the cavity 22 so that it presses the tube 28 against a plurality of locating protrusions 26, 27 extending inwardly from the cavity wall. The resilient tube 36 is located between a depression 38 formed in the outer surface of the cooling air entry tube 28 and a facing depression 39 formed in the interior surface of the cavity 22. The tubes 28, 36 are also retained in the cavity 22 by brazing. The cooling air entry tube 28 has holes 32 through which cooling air impinges on the inside of the leading edge the air then flowing through holes 43 in the leading edge to provide film cooling. The portion of the blade to the rear of the cavity 22 is provided with a sinuous passage 23, 24, 25 and holes 42 in the trailing edge for the passage of cooling air. The resilient member could be a complete tube of thin metal rather than the split tube 36, or it could comprise any other suitable form of longitudinally extending resilient member such as a shaped thin metal channel piece. Neither of the depressions 38, 39 is formed initially and a temporary location such as a setscrew is used to locate the tube 28 against the protrusions 26, 27. The depressions 38, 39 are then formed by drilling out a hole slightly smaller in diameter than the unstressed diameter of the tube 36 in between the tube 28 and the wall of the cavity 22. After removing the temporary location, the tube 36 is forced into place between the depressions.
Patent GB-368155-A (GB)
Title: Method of stabilising monocalcic phosphate in its solutions and its transformation into other soluble phosphates, particularly alkaline phosphates
IPC: C05B19/00
Filed: 1931-05-27
Abstract: Stable solutions of monocalcium phosphate are obtained by adding 5-40 per cent of an organic acid either to the solid material such as superphosphate before extraction or to the water used for making the solution.  Acids specified are tartaric, citric, formic, butyric, and lactic.  The solutions obtained may be employed for the production of alkali phosphates, and the organic acids may be recovered either by precipitation from the monocalcium phosphate solution immediately before it is used, or by elimination from the alkali phosphate solution obtained.
Patent GB-775622-A (GB)
Title: Improvements in or relating to magnetic electron lens structures
IPC: H01J29/68
Filed: 1955-05-31
Abstract: 775,622. Electron-beam focusing apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 31, 1955 [June 3, 1954], No. 15569/55. Class 39(1). The adjustment of one component 1 of a magnetic electron lens assembly 1, 3 is effected by an adjusting nut 15 on a single retaining or locating bolt 9 fixed at one end 13, the nut having a cylindrical axial extension 17 of reduced diameter which turns in a channel in the component 1. The bending moment 31, 33 due to the magnetic force would make the component 1 seize on the bolt were it not for the intervening extension 17. The annular ceramic magnets 1, 3 are axially magnetized with like poles adjacent. A sleeve 19 provides a bearing for extension 17. A guide pin 23 is provided to stop rotation of magnet 1.
Patent GB-662280-A (GB)
Title: A device for tuning, and measuring the band width of, band pass filters or separate oscillatory circuits
IPC: G01R27/32
Filed: 1949-06-10
Abstract: 662,280. Measuring coupling of coils. TESLA, NATIONAL CORPORATION, and CARNIOL, B. June 10, 1949 [June 24, 1948], No. 15579/49. Class 37. In order to adjust or measure the bandwidth of band-pass filters or to tune resonant circuits having any type of coupling a free oscillation is produced in one of the resonant circuits by means of a sudden change of current or voltage therein. A generator of square oscillations or a pulse generator G supplies to the coupled circuits F a square oscillation or short pulses of a given frequency. The output voltage of the secondary winding is either observed in an oscillograph O or rectified in a detector D, and is then applied to a measuring instrument M, the deflection of which depends only on the magnitude of the beat frequency produced by the difference in the frequency of the free oscillations in the two coils. One of the circuits is accurately tuned and all other circuits in succession are accurately tuned to the same frequency by varying their inductance or capacitance in such a way that the indicator M shows a minimum deflection all the time. This deflection represents a value which is proportional to the adjusted degree of coupling and hence also the resultant band width.
Patent GB-168436-A (GB)
Title: Improvements in safety devices for aircraft
IPC: B64D17/00
Filed: 1920-06-09
Abstract: 168,436. Ajello, G. June 9, 1920. Parachutes; steering, balancing, and regulating altitude; stopping way.-In a safety device for aircraft, an air resistance member, universally pivoted to the machine above its centre of gravity, may be moved to its operating position :-(1) to prevent a fatal fall of the machine, (2) to provide an air brake, (3) to raise the nose of the machine when landing. The emergency surface 1, which may be of linen, wood veneer, or other flexible material is folded and provided with ribs 12, and is attached to three frames 2, 3, 4 which are mounted on a universal joint 5 and carried in closed position, as shown in Fig. 2, by spring supported rollers 8 on a circular track 6 rigidly fixed to the aeroplane, the fins 11 keeping the device to leeward. The frames are opened and closed by wires a, b which pass down the tubular pivot member 5 and are connected to a hand control which operates them simultaneously in opposite directions. The wire a is connected through ball - bearing slides 17, 18 and the strut 19 to the frame 4. The wires b pass through pulleys 20, 21, 22 and are connected to the frame 4 at 23. To initiate the opening, a smaller arm 24, provided with a spring 25 and a roller 26, is pushed by the movement of the wire b. The apparatus is attached to the main frame 28 of the machine by straps 27. Fig. 4 shows the use of the device for landing, a wheel 29 taking the place of the usual skid. The covering may be in more than the three sections shown, and when opened may be at a constant distance from the joint 5, or may approximate to the cross-section of a standard aeroplane wing.
Patent GB-845450-A (GB)
Title: Improvements relating to separators on ring spinning and ring twisting frames
IPC: D01H1/42
Filed: 1957-05-16
Abstract: 845,450. Separator-plates for textile ring- spinning &c. machines. RIETER & CIE A. G., J. J. May 16,1957 [May 16,1956], No. 15616/57. Class 120(2). Separator-plates for ring spinning &c machines have one end resiliently connected with the ring- rail so that they can be deflected to facilitate doffing, piecing-up &c. Each plate 17 is mounted in a slot in a base portion 7 held in position on the ring rail 1 by a screw 11  surrounded by a spring 13. The aperture 8 through which the screw passes is larger than the shank of the screw to allow the plate to be deflected. A locating-pin 19 in an enlarged slot 20, a cover, 18 for the spring and anti-ballooning rings, which act to limit the deflection of the plates, are provided.
Patent GB-168978-A (GB)
Title: Improvements in and relating to cooking utensils
IPC: A47J27/122
Filed: 1920-06-09
Abstract: 168,978. Spiller, A., and Smith, H. J. June 9, 1920. Cooking-stoves; supports for articles to be heated. - Means for enabling several cooking-vessels to be simultaneously heated comprises a holder a partitioned at the top by bars c into as many sectors or heating units as are desired, and fitted lower down with bars b bisecting the angles between the bars c. An annular space i is formed between the lower reduced parts of the vessels and the holder, through which the gases from the source of heat pass on their way to exit openings near the top of the holder. The holder may be surrounded with asbestos, &c. to prevent loss of heat by radiation. The holder is provided with handles and with an opening o at the bottom to admit the supply pipe of a gas ring.
Patent GB-776805-A (GB)
Title: Process for the production of synthetic elastomers
IPC: C08F236/04
Filed: 1955-06-01
Abstract: Butadiene or a homologue or derivative thereof is copolymerized in aqueous emulsion at a pH of less than 7 with an ester acid of a polybasic unsaturated carboxylic acid.  Specified dienes are 2-methyl butadiene, 2,3-di-methylbutadiene and 2-chlorobutadiene. The ester-acid may be derived from maleic, a -chloromaleic, a -methylmaleic, fumaric and citraconic acids and butyl, octyl, dodecyl, allyl, phenol, p-chlorphenol, cresol, a -naphthol, cyclohexanol, benzyl alcohol and phenyl-ethyl alcohol. Copolymerizable monomers, which may be present as a third component, comprise styrene, a nuclear-substituted halogen or alkyl styrene, acrylonitrile and the methyl, ethyl, butyl, dodecyl, stearyl, cyclohexyl, phenyl and benzyl esters of acrylic and methacrylic acids.  The products may be vulcanized either with sulphur and accelerators or without sulphur using metal oxides, polyhydric alcohols or polybasic amines and their salts. In examples the polymerization is effected in the presence of the sodium salt of a paraffin sulphonic acid, sulphuric acid, the sodium salt of a paraffin sulphinic acid and diisopropyl xanthogen disulphide. Specification 360,822, [Group IV], is referred to.
Patent GB-456642-A (GB)
Title: Improvements in or relating to high-pressure mercury vapour discharge tubes
IPC: H01J5/32
Filed: 1936-06-05
Abstract: 456,642. Uniting metal to vitreous material by heat. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. June 5, 1936, No. 15800. Convention date, Aug. 31, 1935. [Class 39 (ii)] In a seal for the leading-in wires of a highpressure mercury vapour discharge tube of quartz, wherein the leading-in wires are led through the quartz wall with the interposition of one or more transition glasses, at least a portion of the transition glass is so arranged inside the quartz tube that at its end adjacent to the interior of the tube it bears on the quartz with a gradually decreasing thickness. In one method of forming the seal, a quantity of the transition glass is introduced, preferably by suction, into one end of the quartz tube 1, after which the end of the tube is heated to fuse it to the plug of glass drawn therein. The length of the plug within the quartz tube should be at least 1À5 times, preferably three or four times, the thickness of the quartz wall. The hot plug next has blown into it a current of gas, for example air, to form a longitudinal aperture 3, Fig. 2, in such manner that the inner side of the plug 2 has formed on it the edge 4 which is very thin at the top and becomes gradually thicker downwardly. The tungsten wire 5, Fig. 4, coated with a layer 6 of transition glass is next inserted into the aperture 3 and so held that, when the glass layer 6 and plug 2 are sealed together, the transition glass around the wire projects in the form of a rounded hillock 7. The glass used as the transition glass may have the composition described in Specification 431,923.
Patent GB-242557-A (GB)
Title: An improved combined match and cigarette, or the like box
IPC: B65D85/10
Filed: 1925-06-18
Abstract: 242,557. Allison, T. M. June 18, 1925. Boxes made from special blanks; matches, boxes specially designed for; partitioned boxes; lids.- A combined cigarette and match-box in which the match compartment D is provided at one end of the cigarette compartment C is formed from a single blank with the exception that the partition 8 separating the compartments may be formed from a separate piece of cardboard, aluminium, &c. The partition may be formed integrally with the blank by providing side walls A of double thickness, the inner layer on one or both sides being bent inwards at right angles to form the partition. The base and sides of the cigarette compartment may be perforated as at 11 so that when empty the compartment can be torn off. The match receptacle is provided with a lid 9 cut from one side of the box and adapted to be held closed by friction or by one or more elastic strips 10 secured to its inner face. A reinforcing-strip of aluminium, &c. may be provided adjacent the closing flap 3 of the cigarette compartment. A mirror may be placed in the wall of the cigarette compartment.
Patent GB-544620-A (GB)
Title: Improvements in electric lamp fittings
IPC: F21V21/36
Filed: 1940-10-30
Abstract: 544,620. Supporting electric lamps, THORPE, Ltd., F. W., and THORPE, F. W. Oct. 30, 1940, No. 15855. [Classes 75 (iii) and 75 (iv)] [Also in Group XXXVI] A disconnectible mounting for a lamp comprises a fixed.support 1 within which contacts 8 are mounted and connected to the supply leads, and a detachable part 12 carrying a lampholder 24 with blade contacts 28 that engage the contacts 8 when the part 12 is rocked on trunnions 20 into a vertical position. When in an,oblique position as shown the contacts are disengaged and the trunnions 20 can be passed through gaps 10 in their support recesses 9 to detach the part 12 from the support 1. When the contacts are engaged they are enclosed by the walls 5, 14 and the, parts may be locked in this position by a screw 29. The lamp holder 24 is adjustable in relation to a reflector attached to the flange 13 and is clamped in position by a screw 23 entering ,a slot 26 in the oblong shank 25 of the holder.
Patent GB-452534-A (GB)
Title: Improvements in bobbin holders for creels and for yarn winding and like machines
IPC: B65H49/06
Filed: 1935-05-31
Abstract: 452,534. Winding yarns ; bobbins. ARUNDEL, COULTHARD, & CO., Ltd., FLINT, S. O., and RIDGWAY, F., Sovereign Works, Stockport. May 31, 1935, No. 15859. [Classes 120 (ii) and 120 (iii)] A bobbin holder for a creel or for a yarnwinding or like machine comprises a disc or plate with a cam-like peripheral surface mounted upon the creel peg or winding spindle, and binding in a part in a recess in the base of the bobbin when the bobbin and plate have a relative circular motion. As shown in Figs. 2 and 4, the recess b in the base of the bobbin a is provided with a member c having a groove d and the cam plate h is formed on a bearing member f freely mounted on the spindle e secured to a part n pivoted in the bracket p and provided with a pair of notches r, s. A spring q engages the notch r to hold the spindle in the winding position shown, a lug k on the plate h being then disengaged from a tooth t on the bracket p. When a bobbin is to be removed from or placed on the spindle e, the latter is turned so that the spring q engages the notch s with the lug k abutting against the tooth t to prevent rotation of the plate h, the bobbin being then removed from the spindle or secured thereon by rotating it on the plate so that the grooved member c is disengaged from or engaged with the cam edge i of the plate ; the ends of the edge i are provided with stops j, m. When the bobbin is not adapted for rotation, the plate h is fixed.
Patent GB-719071-A (GB)
Title: Method and apparatus for automatic delivery of measured quantities of liquids
IPC: G01F5/00
Filed: 1951-07-04
Abstract: 719,071. Valves. SCHMIDT, A. July 4, 1951 [July 7, 1950], No. 15886/51. Class 135 Predetermined amounts of liquid are measured by separating a liquid flow into a main current and a measuring current, the latter being led into a chamber where, after a predetermined quantity has entered, means is actuated to cut off the liquid flow. In an embodiment, when a valve 2, Fig. 1, is opened, the inflowing stream of liquid is divided into a main stream which continues on down the tube 3 and past a venturi 4 and a subsidiary stream which flows into a measuring chamber 5. The latter slides on the tube 3 and, when lifted by a handle 21, ports 19 therein are brought into register with ports 17 in the tube 3 to allow the subsidiary stream to flow in, and discharge ports 18 in the two members are brought out of register. The valve 2 is also con-' nected to the handle and is opened when the latter is raised. The container 5 is held in the raised position by a pivoted latch 11 which engages a hook 16 carried by a cap-like member 12 on the tube 3. When container 5 is filled, the overflow falls into a tube 8 and on to a piston 9 therein and the pressure of this liquid depresses the piston and, through a lever 10a, releases the latch 11. The container then falls, the valve 2 is closed, and the liquid in the container flows out through the ports 18 to join the main stream. The amount of liquid diverted into the measuring chamber 5 can be varied by rotating the chamber relative to the tube 3 so as to vary the amount of overlap in ports 17, 19. The two are held in the adjusted position by a pivoted catch 13 carried on the cap 12 which engages one of a series of vertical grooves 15 on the container 5. In a modification, the incoming stream flows past the stop valve 31, Fig. 4, and through an apertured plate 25, the flow through one aperture being directed by a funnel 33 into the measuring chamber 22, and the flow through the remaining apertures passing direct to the outlet. When a handle 32 is raised, the discharge apertures 34 at the base of the measuring chamber are closed, the valve 31 is opened, and a hook 35 on the handle engages the end of a pivoted latch 36 to hold the handle in the raised position. As chamber 22 fills, the air therein is forced out past a non-return valve 40 and, when the chamber is full, the pressure of the liquid therein pushes out a piston 38 to act on the upper end of lever 36 and so release handle 32 which will then fall and close valve 31 and open valve 34.