baber/WOPTO huggingface dataset:
Patent GB-275395-A (GB)
Title: Improvements in talking machines
IPC: G10K13/00
Filed: 1926-07-09
Abstract: 275,395. Gramophone Co., Ltd., (Victor Talking Machine Co.). July 9, 1926. Gramophones modified to constitute telephonic loud-speakers.-Relates to devices whereby the horn of a gramophone may be connected either to the usual tone-arm or to a sound conduit from a loud-speaker unit, by means of a rotary valve in a chamber into which all the conduits converge. According to the invention, the rotary valve body 12 has a single curved passage 24, the axis of which lies in a plane at right angles to the axis of rotation of the valve. The part 12 is enclosed within a casting 9, and may be turned, by means of an external knob and bevel gearing (not shown), so that the passage 24 connects an aperture 20 leading to the small end of the horn 7 either, as shown, with a tube 22 carrying a loud-speaker unit 23, or with an aperture 19 leading from the tone-arm 5.
Patent GB-545200-A (GB)
Title: Improvements relating to the construction of perforated metal bar members of angle section
IPC: A47B96/14
Filed: 1940-12-05
Abstract: 545,200. Section-bars of metal. CONSTRUCTORS, Ltd., and FINER, H. J. Dec. 5, 1940, No. 17347. [Class 20 (ii)] Flanged perforated section-bars for use in the construction of shelving in storage racks are formed from sheet metal by bending the metal of a flat strip over upon itself and then bending the double strip to form the bar, so that the flanges and the webs are at least of double thickness with smooth rounded edges, and the perforations are then formed and serve to bind the folded parts together as shown in Fig. 4. The section-bars may be I, T, channel or Z- sections, and the flanges and webs may be corrugated to stiffen them. Fig 1 shows an angle-bar formed in this manner with double thickness flanges a, a<SP>1</SP> and perforations b. Fig. 5 shows a similar angle-section with corrugated flanges.
Patent GB-881188-A (GB)
Title: Differential pressure responsive devices
IPC: G01L7/00
Filed: 1959-05-22
Abstract: 881,188. Differential pressure gauges. REESE, W. M. May 22, 1959, No. 17461/59. Class 106 (2). A differential pressure gauge comprises a housing 5 divided into two chambers 8, 9 by a centre plate 10 which encloses another chamber 24 in which a compression spring 63 is mounted and connected to valves 31, 32 for controlling differentials in pressure between bellows 18, 21 containing liquid for transmitting the pressure differentials, the spring 63 urging the valves 31, 32 in one direction. The gauge may be used for measuring the drop of pressure through an orifice plate in a gas or liquid flow line, the high- and low-pressure sides of which communicate through pipes 3, 4 with chambers 8, 9 respectively. A passage 28 opens directly from the chamber 24 into the bellows 21 while the chamber 24 is closed out of direct communication with the bellows 18 but communicates indirectly therewith through a passage 45, 46. The bellows are filled with a suitable liquid adapted to flow back and forth in response to variations in the pressure in chambers 8, 9. Calibration springs 41 and the spring 63 tend to contract the bellows 21 and close the valve 32. To alter the range of the gauge the spring 63 or the springs 41 or both may be changed. Normal flow is controlled by the valves 31, 32 so that the displacement of the valve shaft 34 gives a measure of the pressure difference. Movement is transmitted from the valve stem 34 to indicating or recording apparatus by its connection to an arm 53. Compensation for variations in the volume of liquid in the bellows 18, 21 due to temperature variation is provided by linking the valve stem 34 to the arm 53 by a bi-metallic bar 55, bracket 58, rod 60 and springs 61. A pulsation dampener restriction valve 47, of needle type and manually adjustable, provided in the passage 45, 46 permits normal flow between the bellows 18, 21, but restricts excessive flow due to sudden surges. A fluid retainer cup 66 to relieve a large part of the fluid head on the bellows 18 is secured to the plate 10. Specification 790,531 is referred to.
Patent GB-148284-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M25/07
Filed: 1920-06-26
Abstract: 148,284. BarbÚ, J. July 24, 1919, [Convention date]. Spray carburcttors.-A floatless carburettor comprises an inner chamber a connected to the fuel supply through a pipe c and enclosed in an outer chamber b supplied with exhaust gases, the two chambers being closed bv a gas-tight plug e having a series of vertical fuel passages h therein leading to nozzles f, and a series of inclined passages i connecting the passages h to the chamber b. An intimate mixture of fuel and exhaust gases is thus supplied to the nozzles f. The nozzles f are each provided with a spring-controlled plunger l containing a hole m, the nozzles being brought into action in succession by the operation of a manually-controlled rod n, which presses in the plungers l in succession to aline the holes m with the passages h. The rod n is connected to a plate s controlling the air inlet t. The fuel chamber a is provided with a passage d controlled by a tap through which it may be placed in communication with the atmosphere. The proportions of the mixture may be varied either by increasing the pressure of the exhaust gases in the chamber b, or by creating a pressure in the main fuel reservoir.
Patent GB-273738-A (GB)
Title: Improvements in and relating to jig conveyors
IPC: B65G27/00
Filed: 1927-06-30
Abstract: 273,738. Klerner, H. June 30, 1926, [Convention date]. Compressed-air engines.- In a controlling-cylinder for a jig conveyer of the kind having a fluid-actuated valve with a valve-controlled auxiliary passage and a valve-controlled main exhaust passage whereby the stroke can be altered and the cylinder changed from a controlled to an uncontrolled one, the auxiliary passage is dispensed with and the exhaust passage 5 is continued to the end of the cylinder and is provided with a valve-controlled port 18 whereby the passage functions as a control passage. Marks e, z are also provided on the piston-rod to facilitate long and short stroke adjustment respectively. In a modification the cylinder is provided with a tandem non-controlled auxiliary opposing cylinder which keeps the conveyer rope taut and prevents damage due to its sagging. When the piston 2 moves to the left and uncovers one or other of the exhaust ports 6, 7, the cylinder exhausts along passage 5 to the outlet A. When the piston is reversed by the power piston fluid is compressed in cylinder 1 and reverses the valve 4 against the pressure of air on its right end. The piston 2 then moves against the resistance of the pressure air until the reversal of the valve in the power cylinder. If the cylinder is to act as a non-controlled one, the ports 6, 7 are closed and port 18 is opened. Corresponding to the marks e, z are holes e<1>, z<1> in a cylinder extension piece to which a chain &c. is secured. Specification 271,099 is referred to.
Patent GB-169519-A (GB)
Title: Brake accelerator for compressed air brakes
IPC: B60T15/30
Filed: 1920-06-26
Abstract: 169,519. Rushen, P. C., (Knorr-Bremse Akt.-Ges.). June 26,1920. Fluid-pressure.-To prevent further venting of the train-pipe after the initial stage in an application of the brakes, a valve is provided adapted, under the influence of the pressure in the brake cylinder, to cut off the venting chamber from its connection with the train-pipe or exhaust passage. As shown in Fig. 1, the valve D is interposed in the pipe e leading from the triple valve to the venting chamber K and comprises differential pistons d1, d2 subject respectively to the pressures in the chamber K and brake cylinder B, so that it is only open when the brake cylinder is exhausted. The chamber K is adapted to be connected with the train-pipe by the pipe l<2>, and with the exhaust pipe f in the application and running positions of the triple valve respectively. The pipe h may be connected to the pipe g instead of the brake cylinder. The chamber between the pistons d1, d2 is open to the atmosphere. Fig. 3 shows an arrangement in which the valve D for establishing a minimum pressure in the brake cylinder is used also to cut off the venting chamber K from its exhaust connection. In this case the exhaust pipe f of the chamber K is connected to the pipe g connecting the valve D to the triple valve. When the valve D is open this pipe g is connected to the pipe o which is connected through the triple valve with an exhaust pipe f. In an application the train-pipe is connected to the chamber K by the pipes l2, e and the pipe g is uncovered by the triple valve so that air is supplied from the auxiliary reservoir H to the brake cylinder through the valve D. In the application position of the triple valve the pipe o is closed to the exhaust pipe f. When the pressure has risen in the brake cylinder to a slight extent, the valve D, of which both the pistons d1, d2 are subject to this pressure is closed. The further increase of the pressure in the brake cylinder takes place through other connections in the triple valve (not shown). When in releasing the brakes, the pressure falls sufficiently to permit the valve D to open, the chamber K is exhausted through the pipes f1, o, f.
Patent GB-758406-A (GB)
Title: Direct-viewing colour storage tube
IPC: H01J31/18
Filed: 1954-06-15
Abstract: 758,406. Cathode-ray tubes. HUGHES AIRCRAFT CO. June 15, 1954 [July 16, 1953], No. 17580/54. Class 39 (1). [Also in Group XL (c)] Stored colour images laid down by guns 20, 22 on storage target 30 are presented simultaneously by flood electrons which are directed through perforations in the target 30 to a phosphor screen 36. The colour images are laid down through a shadow mask 28, and phosphor stripes on screen 36 register with the corresponding colour images. Flood guns are located in tube necks as close to the writing gun necks as possible to give similar angles of incidence at the target. The storage target consists of a stainless steel or nickel grid 45, Fig. 4, with a dielectric layer, e.g. talc on the side facing the guns, and an aluminium grid 47. Conduction electrons released in the dielectric layer under bombardment are attracted to the front surface by the potential on the grid 47. Erasure of the charge images is by secondary emission. The storage time set by the potential on the grid 47 may be short, or long, or infinite, in which case erasure may be for example by momentarily pulsing the grid 47 in a negative direction. The mask 28 consists of a glass core 40, Fig. 3, with a thin coating of aluminium 41. The openings 42 are equal in width to the solid sections for a two-colour embodiment and one-half the width for a threecolour embodiment. The tube is applicable to radar or television.
Patent GB-261059-A (GB)
Title: Improvements relating to apparatus for use in the discharging of retorts
IPC: C10B33/08
Filed: 1925-07-09
Abstract: 261,059. Toogood, H. J., and Dempster & Sons, Ltd., R. July 9, 1925. Discharging.- Apparatus far use in discharging retorts comprises a travelling framework carrying a fixed or detachable plat form which is disposed at such a height that it may support a skip in a suitable position to receive coke from the upper tiers of retorts. Fig. 4 shows a platform A removably mounted by means of wheels A<2> on a travelling framework a which is formed with a vertical part a<2> fitted with wheels a<3> bearing against a guide member B<1>, and supports coke guiding surfaces, the lower of which are marked a<5>, a<6>, a<7>. In operation the skip rests on the platform A to receive coke from the upper retorts b, b<1>, the platform being removed and the skip resting on the ground when the lower retorts b<2>, b<3>, b<4> are being discharged. Fig. 2 shows a modification in which the platform A is integral with the travelling framework a and carries a hopper D, the discharge outlet of which is controlled by a door d and is disposed in close proximity to the furnace mouth E. Lids d<2> are provided and serve, when open, to guide the coke into the hopper from which it is delivered as required into the furnace; when it is desired to load the coke into skips, the lids d<2> are closed and the skips are supported, as shown, on the platform A. A further construction is described in which a platform, removably mounted on the framework a, carries two hoppers D and a single central coke receiving shoot, a pivoted door being provided for putting the shoot into communication with either of the hoppers.
Patent GB-703287-A (GB)
Title: Novel copolymers, process for producing and compositions containing the same
IPC: C08L27/06
Filed: 1951-07-25
Abstract: In a modification of the process of the parent Specification allyl propionate is copolymerized with an alkene which preferably contains 6 to 10 carbon atoms, such as 1-octene, in such a way that initially and in any subsequent small interval of time a copolymer is formed which contains on the average more than 6 but not more than 14 carbon atoms (including the carbon atom of each carboxylic group) per esterified carboxylic group, and has an average molecular weight of at most 1,000.  Copolymerization may be carried out in the presence of chain stoppers, preferably aldehydes and ketones with not more than 6 carbon atoms per molecule such as butanal, methyl ethyl ketone, and methyl isobutyl ketone.  The copolymer products are liquid and may be used as plasticizers for polyvinyl chloride.
Patent GB-334863-A (GB)
Title: Improvements in the manufacture of artificial cream
IPC: A23L9/20
Filed: 1929-06-08
Abstract: 334,863. Bergsvik, A., Vitacream, Ltd., and Hellerud, R. June 8, 1929. Fat preparations; milk preparations; egg preparations.-A whippable artificial cream is obtained by injecting earth nut oil or fat hardened to a melting point of 32‹ C. into milk to which egg yolk or water soluble proteins extracted from egg yolk have been added. The injection is performed under a pressure of 130 atmospheres or more, preferably 180-200 atmospheres and through an orifice the diameter of which is not greater than 0.4 mm. The milk is preferably heated to 60-65‹ C. before or after addition of the egg yolk and the fat preferably to 60‹ C. The product is subsequently heated to 70-90‹ C. In the example given, the final heating is at 74‹ C., pasteurization being effected thereby, and the product is then cooled, agitation being avoided during these steps. A mixture of fresh and dried egg yolk is preferably used. The amount of fat added to the milk may be 20-45 per cent, the best whipping qualities being obtained with a fat content of 34-43 per cent. When skimmed milk is used more fat is added to supply the deficiency in natural butter fat. A richer cream for serving with fruits, sweets &c. but which will not whip so well may be prepared with a fat content of 43-50 per cent or higher. If the phosphorus content is increased by the addition of buffer substances, e.g. phosphorous salts, to the cream, the temperature to which the cream is finally raised may be considerably reduced. Reference is made to the Public Health (Preservatives &c., in Food) Regulations, 1925.
Patent GB-806756-A (GB)
Title: Improvements in or relating to focusing systems for electric discharge devices
IPC: H01J23/083
Filed: 1956-06-08
Abstract: 806,756. Electron beam focusing apparatus; travelling-wave tubes. WESTERN ELECTRIC CO. Inc. June 8, 1956 [June 10, 1955(2)], No. 17786/56. Class 39(1). A beam focusing electrode system consists of an array of wires 16, Fig. 1B, along which the electrons follow, in " Slalom " fashion or sinuously, a neutral equipotential surface 11 or 12 balanced between electrostatic and centtrifugal forces. Electrons may be delivered to both equipotential surfaces. In a travelling- wave tube the array is constituted by the wires of an interdigital or zig-zag delay line or of a flattened helix, or a circular helix may be used with an annular beam. In Fig. 2, the cathode 24 and the collector 26 are in the plane of the wires 21. The cathode 24 is surrounded by an anode 25 and the collector 26 is surrounded by an electrode 27 which is at the potential of the equipotential surface. In Fig. 5 the electron gun 50 is outside the electrode system 51, 52, 53 and the beam is delivered to a tapered section in which both the spacing between outer electrodes 52 and 53 and the spacing between the wires 51 decrease in the direction of travel. The diameters of the wires also decrease. The outer electrodes 52, 53 may be spaced at different distances from the array, may themselves consist of arrays of wires or they may be omitted entirely. The array may be curved instead of linear. In Fig. 9, the anode 98 of the gun and the electrode 101 which isolates the collector 100 have surfaces which lie in the equipotential surfaces 94, 95. The travelling-wave tube may be of the forward or backward wave type and may be an amplifier or oscillator. The electrode system may also be used for beam switching or storage applications by reversing the beam at one point along the array to follow along the other of the two equipotential surfaces, or by trapping the beam between two points of the array. Specification 772,002 is referred to.
Patent GB-811302-A (GB)
Title: Improvements in brake apparatus, more particularly for railway vehicles
IPC: B60T8/74
Filed: 1955-06-21
Abstract: 811,302. Fluid-pressure brakes. WESTING- HOUSE BREMSENG.m.b.H. June 21, 1955 [June 21, 1954], No. 17847/55. Class 103 (1). In apparatus for the control of fluid pressure brakes, particularly in railway vehicles, an electrical control circuit for governing a vent valve for the brake cylinder, whereby the pressure therein may be reduced to prevent skidding, is operated by the difference in the position of two control elements, the position of one being dependent on the motion of a wheel about its axis, and that of the other upon the motion of a non-rotary part relative to the track on which the wheel is running. The control device is mounted within the bore 8 of a rotating axle and comprises a rotary inertia member 11 which is rotated by the axle through a dog 14 and spring 15 such that if the axle is decelerated or accelerated at more than a certain rate a roller 17 on an arm 16 will move down a slot 18 in the member 11 and cause axial movement of a switching disc 12 such as to engage either contact 33a or 33b. Similarly if there is excessive deceleration or acceleration in the translational movement of the vehicle, a pendulum 22 will tilt and cause movement in the slot 24 of a roller 25 so that the member 32 holding the contacts 33a and 33b is moved axially with respect to the switching disc 12. Thus excessive rotational deceleration of the axle without corresponding translational deceleration, or vice versa, will cause the closure of disc 12 with one or other of contacts 33a or 33b so as to operate an electrical circuit which will reduce the brake cylinder pressure so as to prevent skidding. In this way correct brake control may be applied to the wheels of a railway vehicle in which deceleration is also being produced by magnetic rail brakes. In another embodiment described the movement of the pendulum is coupled with that of the rotary inertia element by means of sun and planet gearing. Reference has been directed by the Comptroller to Specifications 662,029 and 766,224.
Patent GB-569323-A (GB)
Title: Improvements relating to diving equipment
IPC: B63C11/02
Filed: 1943-11-01
Abstract: 569,323. Divers' apparel. TRUBENISED, Ltd., and BIHALY, L. Nov. 1, 1943, No. 18022. [Class 68 (ii)] In a diver's equipment there is provided between the helmet 5 and the suit 2 a rubber seal 3 extending around the neck of the wearer, whereby a lower pressure may exist in the helmet than that existing in the suit. Air is supplied to the suit directly from the supply pipe 7 and to the helmet through an adjustable valve 10 under the control of the wearer. The air escape valve 6 is located in the top of the helmet.
Patent GB-620694-A (GB)
Title: Game apparatus
IPC: A63F9/14
Filed: 1946-06-14
Abstract: 620,694. Mechanical race games. MACDONALD R. B., DOCHERTY, J. K., and COLE, G. L. June, 4, 1946, No. 18024. [Class 132 (ii)] [Also in Group XVIII] A race game having figures on movable supports comprises a number of rotary strikers and a number of balls or other rollers in return-sloped runways, there being one roller and at least one striker for each figure, and power-operated mechanism actuated by closure of an electric circuit to rotate the strikers which recurrently drive the rollers up the runways against the supports and also to move an additional figure ahead of the competing figures. Insertion of a coin, which thereby bridges two contacts, energises, an electric motor 1 which drives a shaft 14 having six rotary strikers each consisting of an arm 13 and each arranged to enter a runway 11, of which there are six in parallel. The rotary strikers each drive a ball 15 in its runway against the support 10 of a figure 8 which is thus driven up the runway. In front of the figures 8 is a hare 9 mounted on a bar 12 extending across and above the runways and driven by an hydraulic device consisting of a jack 36 to which oil is supplied by way of a non-return valve 42 by a pump 38 driven by the motor. The member 35 of the jack is lifted by the oil and moves a series of drawing chains 28, one of which is fastened at 34 and passes over a pulley 33 fixed on the member 35 and then to a differential pulley 32. Succeeding chains pass round differential pulleys 32, 31, 30, the final one passing over a pulley 29 and being attached to the hare. A further chain 25 passes round a pulley 26 to a spring-loaded roller 27. In operation, when the foremost figure 8 reaches a plate 18 the plate pivots at 19 and closes a switch 20 which lights an indicator corresponding with that figure and also withdraws one of the contacts holding the coin so that the coin drops and de-energises the whole apparatus. To re-set it, a lever 44 is pressed, allowing oil to flow back to a sump 45 from the jack 36. The jack then falls to its initial position and the wound-up spring-loaded roller 27 pulls the hare back towards the start, the bar 12 returning the dogs 8 to the start. A spill pipe 46 takes any oil overflow from the jack to the sump. According to the Provisional Specification, the hare is connected to the motor through a suitable drive.
Patent GB-186702-A (GB)
Title: Expression control device for pneumatic players
Filed: 1921-07-04
Abstract: 186,702. Marks, E. C. R., (Clark, F. J.). July 4, 1921. Exhausting air; expression-controlling.-In a device for modifying the air tension in a vacuum system by admitting more or less atmospheric air through the action of a pneumatic, the pneumatic has an opening causing it to respond to fluctuations in the air tension in a chamber communicating with the system so as to maintain the tension in the chamber substantially constant, and has one or more passages through which the air tension in the pneumatic can be varied so that the pneumatic may vary the. admission of air to the chamber for expression-control. The chamber 11 is exhausted by the suction at 10, and through a bleed passage 19 in the floating-board 17 of the pneumatic 14 exhausts this pneumatic more or less so that the board 17 rises off its seat and admits more or less atmospheric air to the chamber 11 by the inlet 13, thus maintaining the tension therein constant. A working minimum tension for softest tones is automatically maintained by the action of a pneumatic 24 connected by a tube 26 to the system, which, pneumatic, when the tension sinks too low, is expanded by a spring 25, tripping an arm 23 and opening a valve 20 thus admitting air to the pneumatic 14 and closing the valve 18. To control the expression, air is admitted to the pneumatic 14 either at 30 by the finger-push 32, or by the action of the tune-sheet at 31<1>, 34<2>, 34<3>, through a relay valveset 40 and passages 38 adjustable by needle valves 39<1>, 39<2>, 39<@3>. To obtain full suction, a tracker-duct 57 is uncovered by the tune-sheet which by means of valves in the set 40 admits air to a pouch 53 to cut off the chamber 11 from the action 10 by means of a diaphragm 54. In a modification, the pneumatic 14 is arranged inside the chamber 11.