baber/WOPTO huggingface dataset:
Patent GB-285503-A (GB)
Title: Improvements in or relating to speed control and the like systems
IPC: H04N5/04
Filed: 1928-02-18
Abstract: 285,503. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Ranger, R. H.). Feb. 19, 1927, [Convention date]. Governing by synchronized air-impulses.-To maintain constant speed of an electric or other motor, a tuning-fork controls the periodic admission of compressed air to a bellows operating a mechanical brake on the motor shaft. The tuning- fork 14 periodically covers and uncovers small escape ports in the sides of a chamber 2 through which the air must pass from a supply pipe 1 on its way to a pipe 21 leading to the bellows 32. The action of the escaping air keeps the fork in vibration. Rotation of the motor-shaft 23 by means of a cam 25 and a connecting rod 29 periodically opens and closes a slide-valve 18 at the inlet end of the pipe 21. Any variation of speed varies the phase-relation between the periodic escape of air at the tuning-fork and the periodic admission of air to the bellows, which through a linkage 33, 34 acts to a greater or less extent upon a brake-band 37. Regularity of vibration is aided by forming the air passage between the chamber 2 and the valve 18 as a resonant column 10. Quartz tuning forks may be employed. The apparatus may be used for securing synchronized working in picture telegraphy.
Patent GB-1334324-A (GB)
Title: Sealing unit for pressurized gas container
IPC: B60R21/26
Filed: 1972-02-04
Abstract: 1334324 Compressed gas container discharge device NISSAN MOTOR CO Ltd 4 Feb 1972 [23 Sept 1971 (2)] 5305/72 Heading F4P A frangible seal for a compressed gas container 10 comprises a hollow hemispherical member 14 held against a complementary portion of the container neck 10a by means of a centrally apertured screw cap 17 to which is threaded a gas discharge tube 21 leading to an inflatable protector bag for a motor vehicle (not shown); the concave side of insertion 14 being provided with an explosive charge 22 which is detonated in the event of vehicle collision thus rupturing the seal. The charge 22 is connected by electrical leads to a trigger (not shown). In a modification an 0-packing 16 is replaced by metal foil packing and in a further modification the explosive charge is embedded in gelled material, grease or silicon rubber.
Patent GB-1247577-A (GB)
Title: Method of processing a photographic silver salt layer
Inventor: BOLLER BILLY KENNEDY
IPC: G03C5/39
Filed: 1969-01-31
Abstract: 1,247,577. Photographic water-absorbent processing web or sheet. EASTMAN KODAK CO. Jan.31, 1969 [Jan.31, 1968|, No.5311/69. Heading G2C. A method of processing an imagewise exposed photographic silver salt layer carried on a support comprises bringing the silver salt layer into contact with a water-absorbent processing web or sheet having imbibed therein an aqueous processing solution containing a stabilizing agent which forms a non-diffusible compound with undeveloped silver salt, wherein the support and/or the web are transparent. The stabilizing agent is preferably such that the transmission density of the non- image areas is no more than 0.50, the support and web being transparent. The stabilizing agent preferably has the formula RSH wherein R is alkyl, substituted alkyl, cycloalkyl, aryl or a heterocyclic radical, or may have the general formula (A), (B), (C) or (D) as defined in Specification 1,113,603 or the general formula (I) or (II) as defined in claim 1 of British Patent Specification 1, 019, 222. Many stabilizing agents are listed. The web and the exposed silver salt layer are preferably contacted in the presence of a silver halide developing agent, which may be present as a separate solution, be imbibed in the web, or be incorporated in the silver salt layer or a layer adjacent thereto. The silver salt layer may be a direct-positive silver halide emulsion layer. A hydrophilic colloid layer may be coated over or under the silver salt layer. The processing web or sheet may comprise a support carrying a layer of hydrophilic colloid which may contain silver precipitating nuclei, although a positive image is apparently not obtained in the web. By the method of this invention a stabilized photographic image is produced and may be viewed without separating the processing web from the silver salt layer. The degree of adhesion between the processing web and photographic film surface should preferably be sufficient to prevent delamination of the layers during handling operations.
Patent GB-327242-A (GB)
Title: Improvements in mud guards for submarine drills
IPC: E02B3/02
Filed: 1929-02-18
Abstract: 327,242. Marks, Sir G. C., (Ingersoll- Rand Co.). Feb. 18, 1929. Subaqueous boring.-In a subaqueous drilling unit in which a spud or guide frame K is adjustable on a main frame or tower H by means of a cable T, and a hammer drill C and frame P are adjustable on the spud &c. by means of a cable V, while a mud guard X is slidable in a shoe a<1> at the lower end of the spud &c. and is adapted to be forced down to the rock F by the weight of the drilling element, a chain &c. b is secured to the top of the mud guard, passes downwardly and through a slot in the shoe a<1> and is then connected to a. cable &c. f which passes upwardly above the surface, whereby the mud guard may be forced through the mud or held in position as during the changing of the drill steel W. Preferably the cable f is operated by a hand chain k, self-locking chain block and block and tackle h.
Patent GB-150758-A (GB)
Title: Improvements in means for attracting and killing flies and other insects
Filed: 1919-03-04
Abstract: 150,758. Aston, W. H. March 4, 1919. Insecticides.-A liquid preparation for attracting and destroying flies consists of a solution of formaldehyde and an agent or agents attractive to the insects such as sugar, glucose, fruit sugar, molasses, fruit juices, or essences. A specified preparation consists of formalin, glucose, and apple or pear juice.
Patent GB-114673-A (GB)
Title: An Improved Method of and Means for Removing Ripe Palm Fruit and the like from the Bunches.
IPC: A23N5/08
Filed: 1917-04-17
Abstract: 114,673. Lever Bros., and Wall, B. P. April 17, 1917. Separators other than density and strainer separators.-A method of gathering ripe palm and like fruits consists in rotating the detached bunch rapidly about the stem as an axis so that the ripe fruit only is' thrown off by centrifugal force, the motion being preferably arrested suddenly and reversed at intervals. In the device shown in Fig. 2, the stem of the bunch is gripped between spring jaws 4, 5 by pushing down a collar 6. The spindle 1 carrying the jaws is supported on a ball bearing 9 and is adapted to be rotated first in one and then in the opposite direction, by pulling alternately the ends of a cord 10 wound round a drum 8 fixed to the shaft. The drive may be effected by power, acting through automatic reversing gearing.
Patent GB-641916-A (GB)
Title: Improvements in or relating to electric frequency discriminators
Inventor: STARR ARTHUR TISSO
IPC: H03D9/04
Filed: 1948-02-24
Abstract: 641,916. Frequency and phase modulation. STANDARD TELEPHONES & CABLES, Ltd. Feb. 24, 1948, No. 5407. [Class 40 (v)] A frequency discriminator for demodulating frequency or phase-modulated waves comprises two frequency-dependent networks to which the waves are applied separately, preferably through constant-current pentode valves. The networks have different impedance-frequency characteristic curves which intersect at the mean carrier frequency and have equal and opposite slope and zero curvature at the point of intersection. This results in a linear characteristic over a wide band of frequency deviation and renders the discriminator suitable for wideband multiplex signalling. As shown, the F.M. wave is applied in parallel to the control grids of pentode valves 31, 32, the anodes of which are connected through condensers 41 to dissimilar networks comprising resistors 42, 56 shunted respectively by sections of transmission line 43, 55 open or shorted at their outer ends. The networks are shunted by separate rectifiers 44 feeding load resistors 46 through low-pass filters 45. The resistors 46 are connected in the grid circuits of amplifiers 47, 51 and the demodulated signal is taken off at terminals 29, 30 across the two anodes. The principles involved in the design of the discriminator are explained in Specification 641,915. The coaxial lines 43, 55 may be replaced by parallelresonant circuits or other resonating devices. Trimming adjustments may be provided; for example, the heater current of one of the diode rectifiers 44 may be adjustable. The invention may also be applied to the known discriminators in which the F.M. wave is passed through a quarter-period delay network, and the voltages of the delayed and undelayed waves are added and subtracted, and the resultants applied to the two rectifiers.
Patent GB-820132-A (GB)
Title: A process for the production of dimethyl sulphide
Filed: 1957-02-18
Abstract: Dimethyl sulphide is prepared by reacting the vapour of dimethyl ether with hydrogen sulphide at 150 DEG  to 450 DEG  C. in the presence of a sulphide of a metal of Group VI.  The catalyst may be used on a carrier, e.g. a clay, or admixed with a solid diluent, e.g. aluminium or a silicon oxide.  Alternatively, instead of the sulphide, there may be used an oxide or other compound of the metal convertible to the sulphide under the reaction conditions.  Reaction may be effected under elevated pressure.  Preferably excess of dimethyl ether is used and the reacted mixture condensed to recover the desired sulphide and the residual gases, comprising a little methyl mercaptan, recycled. An example is given using tungsten sulphide as catalyst.  The dimethyl sulphide may be converted to the sulphoxide by oxidation.
Patent GB-368952-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J17/04
Filed: 1931-02-20
Abstract: 368,952. Discharge apparatus. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. Feb. 20, 1931, No. 5450. Convention date, Feb. 20, 1930. [Class 39 (i).] One or more of the conductors supporting an anode and cathode are fused into the bottom of a depression which is pressed, bored or otherwise formed in a foot, and serves to prevent secondary discharges due to the deposit of metal &c. on the foot. As shown, each of two conductors a, supporting the anode of a thermionic valve, is fused into a foot c having depressions b formed around the conductor. In another arrangement, the supports for two anodes of a gas discharge tube are mounted in a similar manner.
Patent GB-511539-A (GB)
Title: Improvements relating to snap mechanisms
IPC: H01H13/36
Filed: 1938-02-21
Abstract: 511,539. Metallic springs for switches. MICRO SWITCH CORPORATION. Feb. 21, 1938, No. 5467. Convention date, Feb. 20, 1937, [Class 108 (iii)] [Also in Group XXXVII] In a snap-action mechanism which includes a flat thin leaf spring, bowed under compression, the pivotal end of the spring is made substantially square to the length and seats in an angle of less than 180 degrees in a groove formed in a support for the spring. As applied to a snap action switch, a leaf spring 8 secured to a terminal 11 is placed under tension by two leaf springs 9 attached to the free end of the spring 8 and placed under compression by being seated in a recess 13 of an abutment 12. The springs 8, 9 are stamped from a sheet of beryllium copper 8.5 thousandths of an inch thick and the moving contact 7 is formed by folding a strip of silver over the free end of the leaf springs. The switch is operated by a plunger 14 which depresses the spring 8 below the pivot axis of the springs 9. The ends of the springs 9 have squared ends and pivot in a recess 13 in the abutment 12, Figs. 5, 6 show different abutments, the line of thrust of the spring acting in the direction of the line 21. Lateral movement along the recesses 13 is prevented by stops. Specification 419,917, [Group XXXVII], is referred to.
Patent GB-657242-A (GB)
Title: Improvements relating to machines for forming and stacking lengths of strip material
IPC: D04H11/00
Filed: 1949-03-01
Abstract: 657,242. Strip-cutting machines. ALLEN, E. B. March 1, 1949, No. 5499. Convention date, March 5, 1948. Drawings to Specification. [Class 145(ii)] [Also in Group VIII] The Specification describes in great detail a machine for simultaneously forming chipboard strips by drawing lengths of strip from rolls of stock, forming the lengths into a bundle and severing by a circular saw. The bundle is then added to a stack which is fed to a machine for forming cemented pile fabric as disclosed in Specifications 560,290 and 634,131, [both in Group IX].
Patent GB-784425-A (GB)
Title: Improvements relating to fuel injection pumps
Inventor: MORRIS JOHN NEVILLE
IPC: F02D1/00
Filed: 1955-02-24
Abstract: 784,425. Fluid-pressure servomotor-control systems. S.U. CARBURETTER CO., Ltd. Jan. 17, 1956 [Feb. 24, 1955], No. 5527/55. Class 135. In a fuel injection pump for spark-ignition internal-combustion engines the spring-loaded plungers 5, Fig. 1, are operated by a wobbleplate 4 controlled by a piston and associated skew shaft 1 longitudinally slidable on a driveshaft 3. The shaft 3 has a central passage 8 having inlet ports 7 and outlet ports 9, the latter being controlled by a sleeve valve member 13. A spring 14 is located between the piston 1 and the member 13 and acts on the latter through a thrust race 15. The valve member 13 is supported by the forked end of a pivoted lever 16, the other end of which is connected by thrust pins 18, 19 to a bellows 20 in a chamber connected by a port 22 to the induction manifold of the engine. Pressurized oil is supplied through an inlet 6 to the upper side of the piston 1 and passes through the ports 7, the passage 8, the ports 9 and ports 13A in the member 13 to the chamber 10 at the other side of the piston. Oil continually leaks from the chamber 10 to the sump, either through a port 11 or through the port 27, the passage 28 and the port 29. To increase the speed with which the sleeve 13 moves to a position in which the pressures on both sides of the piston 1 balance after a sudden decrease in the induction manifold pressure, the rate of leakage from the chamber 10 is momentarily increased. To this end the outlet passage 28 in the shaft 3 is provided with additional inlet ports 26 which are normally closed by the valve member 13. If the induction manifold pressure suddenly drops, the bellows 20 expands and the sleeve 13 is moved upwardly to uncover the ports 26 so that the leakage rate is momentarily increased and the sleeve 13 moves to establish equilibrium. In a modification the lower edge 30, Fig. 3, of the member 13 has a notch 31 which in normal operation successively uncovers the ports 26 to provide a permanent leak from the chamber 10. Upon a sudden reduction of manifold pressure the sleeve 13 is moved to uncover all ports 26 so momentarily increasing the leakage rate. Specifications 533,596 and 552,547, [both in Group XXVIII], are referred to.
Patent GB-163789-A (GB)
Title: Improvements in internal combustion engines
IPC: F02F1/24
Filed: 1920-02-24
Abstract: 163,789. Spina, E. Lanzerotti-, and Thomson, K. J. Feb. 24, 1920. Valve-gear; regulating.-Three or more inclined inlet and exhaust valves 5, arranged alternately either singly or in groups around the cylinder head, are actuated by two concentric plungers 13, 14, one for the inlet valves and the other for the exhaust valves. In one modification, one of the plungers also actuates a valve arranged vertically in the centre of the cylinder head. The plungers carry rollers 16 which engage caps 17 on the valve stems, and adjustment is effected by inserting packing-pieces in the caps. The plungers are actuated by two overhead levers rocking about the same axis, the lever for the outer plunger having an arched end 10 to accommodate the end of the other lever.
Patent GB-683104-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/26
Filed: 1951-03-07
Abstract: 683,104. Electric incandescent lamps with internal screens BRITISH THOMSONHOUSTON CO., Ltd. March 7,1951 [March 31, 1950], No. 5538/51. Class 39(ii) A heat deflector located above the filament of an electric incandescent lamp provided with a glass stem press, consists of a thin disc 13 of metal, such as aluminium, provided with a slot 14 which extends radially inward from the periphery 15 so that the disc can be mounted upon the stem press 4 by sliding it laterally to engage thereon the slot being of a length sufficient for the disc to be coaxial with the lamp stem 3. One or more slots or grooves 16 are moulded on opposite sides of the stem press to engage the sides 19 of the slot 14 with a tight frictional fit and, in the example, the parts of the slot 14 that engage the grooves 16 are formed with offset tongues 20 of a height corresponding to the width of the grooves to provide a locking and supporting engagement.
Patent GB-194283-A (GB)
Title: Improvements in apparatus for measuring the deviation of borings
IPC: E21B47/022
Filed: 1923-02-26
Abstract: 194,283. Foraky, Soc. Anon. Belge d'Entreprise de Forage et de Fongage, and Denis, L. L. B. March 1, 1922, [Convention date]. Bore-hole clinometers.-Relates to a spring suspension device for the pendulum of a borehole clinometer of the kind in which the inclination is determined from electric signals produced by the circular oscillating movement of the pendulum, and to means for starting this oscillating movement. The pendulum rod 6, carrying at its upper end a signalling contact and weighted at its lower end, is suspended intermediately by the device shown in Fig. 2. The main suspension spring comprises an outer portion 11, Figs. 2 and 3, forming nearly a complete circle which is joined bv radial end portions 12, 13 to semicircular members 14, 15 thicker than the portion 11. The member 14 is secured to a support 17 fixed to the main casing 3, and the member 15 is secured to a member 20 fixed to the rod 6. To correct any lack of uniformity of the elastic couple for all positions of the pendulum an adjustable auxiliary spring 22, Figs. 2 and 4, of a split-ring shape, is provided. One end 23 of this spring is secured to a member 24 fixed to a ring 25 adapted to be rotatably adjusted on the member 20, and the spring bears towards its other end on the pointed end of a screw 28 secured to a sleeve 26 mounted on the support 17. Rotation of the ring 25 serves to vary the length of the arc between the end 23 and the point at which the spring bears on the screw 28, and rotation of the sleeve 26 serves to adjust the point of application of the force of the spring 22 on the pendulum. Fig. 5 shows the device for starting the oscillating movement of the pendulum. The lower end of the rod 6 carries a soft metal disc 32 with a convex under surface immediately over the pointed end of a lever 33 pivoted at 34 in a support 35 secured to a central shaft 36. The lever 33 is so weighted that it normally rests against a stop on the support 35 with its pointed end in the axis of the shaft 36. This shaft is formed with a quickmotion screw thread engaging a nut 40 mounted on the armature 39 of an electromagnet of which the coil 43 is disposed in a casing 44 of magnetic material fixed to the casing 3. The upper end of the shaft 36 is adapted to slide and to rotate in a bracket 38 and carries a quadrant 52, Fig. 6, adapted to engage over or under a finger 53 on the bracket 38. Upon closing the circuit in the coil 43 the armature 39 descends, the nut 40 turns the shaft 36, and the quadrant 52 takes the position shown in full lines in Fig. 6. The circuit is then broken, whereupon the armature 39 is raised by an adjustable spring 50, the shaft 36 rises with slight rotation until the quadrant 52 engages the edge of the finger 53; the shaft then rises without rotation until the quadrant is free to pass above the finger, and thereafter rotates without rising, and this rotation is imparted to the disc 32 by a pointed end of the lever 33. The shaft 36 thereupon descends by its own weight leaving-the pendulum oscillating freely.
Patent GB-669340-A (GB)
Title: Crusher
IPC: B02C13/12
Filed: 1949-03-01
Abstract: 669,340. Pulverizers. DULAIT, J. March 1, 1949 [March 5, 1948], No. 5609/49. Class 59 In a crusher in which hammers or the like rotate in a casing, outlet openings for the crushed material are provided in a hollow cylinder situated within the crusher nearer the rotor axis than the hammers and connected with the outside through an aperture in the rear wall of the crusher. As shown, the crusher comprises a rotor formed by providing on each side of a disc 1 beaters 2, 3, rotating within a stator 4 having along its inner periphery chambers 5, 6. Material, fed through inlet 7 is, after treatment, ejected through openings 8 provided in a cylindrical member 9 which rotates with the beaters. In a modification the member 9 is stationary, being formed integral with the rear wall 10 and the openings 8 are inclined so that their outer edges project forwardly in the direction of rotation. The outlet member may also be separately rotated at a lower speed than the rotor.
Patent GB-1144623-A (GB)
Title: Apparatus for introducing granules in a cigarette filter
IPC: A24D3/02
Filed: 1968-02-05
Abstract: 1,144,623. Coating apparatus. BAUMGARTNER PAPIERS S.A. 5 Feb., 1968 [13 Feb., 1967], No. 5612/68. Heading B2L. Granular particles are spread on a cellulose sheet for forming a cigarette filter by apparatus comprising a rotarydisc provided at its periphery with a succession of receptacles of equal capacity, means for continuously supplying the granules to the receptacles successively at a given angular position of the disc, means for removing the granules from the receptacles successively at another angular position, and means for directing the driven granules on to the sheet. As shown, the disc for metering the granules ' comprises a flange 21 rotated with a horizontal shaft 22, an annular member 23 separated from flange 21 by radial bars 24 and a cylinrical mesh 25 located at the base of bars 24, and annular bars 28, 29 interconnecting the bars 24. The spaces 'between the successive bars 24 constitute rectangular receptacles of equal capacity. The receptacles are filled in succession by granules.. flowing continuously from a spout 5, the filled receptacles are successively levelled by air discharged from a nozzle 30 across the rim of the disc, and air discharged from a radially-disposed nozzle 13 drives the contents of each successive filled receptacle into a duct 12 adapted to deposit the granules either on to the centre of a travelling sheet, or on to a horizontal rotary disc which distributes the granules by centrifugal action across the entire width of the sheet. In a modification the disc rotates about a vertical axis, and the receptacles are constituted by a pair of peripheral concentric walls interconnected by radial bars and a perforated bottom, the contents of the filled receptacles being discharged successively into a vertical duct by a vertically-disposed air nozzle. In a further modification the disc rotates about a vertical axis, and radial walls extend from the periphery to a concentric inner perforated wall. The periphery rotates past an arcuate concentric fixed wall which temporarily completes the outer wall of peripheral receptacles defined by the radial walls and the inner wall. The receptacles are filled and levelled while passing the outer wall, and are discharged at the outlet end of the latter into a horizontal duct by a radially-disposed air nozzle.