baber/WOPTO huggingface dataset:
Patent GB-315751-A (GB)
Title: Improvements in or relating to indicating and/or recording mechanism
Filed: 1928-04-17
Abstract: 315,751. Hodgson, J. L., Gray, F., and Raggatt, R. B. April 17, 1928. Indicating departure from efficiency relations, -Means for indicating and recording variations from a predetermined ratio between two or more variables comprises two or more apparatus moved in accordance with variations in each of the factors, interconnecting means adapted to indicate or record the variations, and means for adjusting the ratio. As shown in Fig. 2, for determining the efficiency of a boiler from the quantity of air passing through the furnace and the steam flow from the boiler, the air flow is measured by a differential pressure device 2 and the steam flow by a mercury U-tube 20. The movements of the bell 3 due to variations in the pressure difference are transmitted to a lever 6 pivoted at 7 and connected to a link 8 the other end of which works in the arcuate slot 9 of a bell crank 10 while variations in the steam flow are transmited by a float 21 to a pivoted lever 22 connected by a link 24 to a lever 26 connected at one end to the bell crank 10 and movable in a slot 28 of a lever 29. Pivotally attached to the link 8 is one end of a link 14 the other end of which is connected to one arm 16 of a bell crank the other arm 18 of which constitutes a pointer which can be clamped in any desired position in accordance with the predetermined ratio. The lever 29 carries a pointer 31 co-operating with a scale 32 to indicate the departure from efficiency relations. The levers 6, 22 may be provided with indicating pointers co-operating with scales 36, 33 and with recording arms 37, 34, a recording arm 35 being associated also with the pointer 31.
Patent GB-436954-A (GB)
Title: Improvements in electric switch boxes
IPC: H02G3/12
Filed: 1934-04-17
Abstract: 436,954. Switch cases. ALLDAY, N., The Nest, Streetly Lane, Four Oaks, Warwickshire, and BAIN, R., 25, Beaudesert Road, Handsworth, Birmingham. April 17, 1934, No. 11521. [Class 38 (v)] A switch box is provided with a base or back of channelled form, the channel 7 being adapted to fit into the semicircular channels 10 normally provided in brickwork for the reception of conduit tubes 9. The channel 7 thus provides space for the conductors or cables and the rest of the box can be made relatively shallow so as to be accommodated within the normal thickness of plaster provided on the face of the brickwork. The switch is mounted on a plate 15 having hooks 16 diagonally opposite pairs of which engage two screws 18 on the base of the box. The switch can thus be mounted with its dolly capable of horizontal or vertical movement. The switch is preferably of the shallow kind described in Specifications 398,322 and 401,939.
Patent GB-1102298-A (GB)
Title: Improvements relating to the oligomerisation of olefines and catalysts therefor
Inventor: ADDY LESLIE ERNEST
IPC: B01J23/70
Filed: 1965-03-18
Abstract: Olefines are oligomerized in the presence of a cobalt or activated carbon catalyst, which additionally contains an alkali metal, and has not been subjected to heat in the presence of reducing gases or added molecular oxygen. Suitable olefines are those containing up to 10C especially C3-C8. Oligomerization temperatures usually lie in the -100 to +200 DEG  C. range. The reaction is usually effected at such a pressure that the feed is liquefied but if desired a solvent e.g. pentane, hexane or cyclohexane can be used.  In examples (1) propylene was oligomerized at 80 DEG  C. in the presence of Co + K on C to yield 4 methyl pentene-1, cis 4 methyl pentene-2, trans 4-methyl pentene-2, 2-methyl pentene-1, hexene-1, cis hexene-3, trans-hexene-3, cis hexene-2, trans-hexene-2, and 2-methyl pentene-2; (2) butene-1 yielded 73% octenes at a slightly greater temperature; (3) a mixture of butene-1, cis-butene-2 and trans butene-2 gave 11% of octenes and (4) pentenes yielded C10 dimers.ALSO:Oligomerisation catalysts are made by depositing a cobalt compound and nitric acid or a nitrate on activated carbon heating the carbon in the absence of reducing gases or added molecular oxygen at temperatures below 400 DEG C. to decompose the nitrate, then heating further in an inert gas while maintaining the temperature of the catalyst below 500 DEG C, and then impregnating the carbon with alkali metal.  Specified alkali metals are Li, Na and K.  If desired the alkali metal may be incorporated in the feedstock to be treated.
Patent GB-834871-A (GB)
Title: Improvements in or relating to tools for securing component parts to mounting plates
IPC: H05K13/04
Filed: 1958-04-11
Abstract: 834,871. Making electrical components; shearing. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 11, 1958 [April 13, 1957], No. 11581/58. Classes 83 (2) and 83 (4). A tool for securing component parts, e.g. resistors or capacitors 6 to a mounting plate 1 for electrical and electronic apparatus, the said parts having two wire projections 7 for inserting and soldering into apertures in said plates and the tool comprising an adjustable housing having two guides 10, 11 for the wire projections, is characterized in that the path 12 for one projection is fixed relatively to the housing which is adjustable relatively to the mounting plate in order to align the path 12 with an aperture 4 on the plate, while the path 13 of the second projection is adjustable relatively to the path 12 of the first projection by movement of the second guide 11 in the housing so that the path 13 of the second projection is aligned with another aperture 5 in the plate. Each mounting plate is located by stops 14, 15 and 16. If the component part occupies an oblique position on the mounting plate, the housing 9 is rotated to effect alignment. The housing 38 is rotatably mounted on a frame 21 and adjustably mounted on a shaft 23 carried in a support 20. The axis of rotation of the housing lies in the path 12 of the projection 7 in the first guide 10. The mounting plate is carried on a holder 30 adjustable on a slide 29 fixed to the support 20 and locked in position by a spring-loaded stop-pin 32 on a bracket 33 slidable on shafts 34, 35 and located by spring-loaded pins 37. The tool may be used for securing parts having more than two wire projections, e.g. a rectangular coil box. If the component part is a bridge wire, the tool includes a device comprising a first guide 39 (Fig. 6) secured to a shaft 41 and provided with a pair of jaws 46, 47 and a second guide 40 also secured to the shaft 41. A stop 50 is fixed to the second guide which is adjustable relatively to the first guide. A wire guide 52 provided with teeth 51 for gripping the wire 55 supplied from a reel 53 is reciprocable along the shaft 41 to feed the wire into the jaws 46, 47 of the first guide. On return of the wire guide it is arrested by the stop 50 and knives 54 cut the wire to the desired length after which the ends are bent by means not shown and the wire connected to a mounting plate.
Patent GB-732179-A (GB)
Title: Method of and apparatus for obtaining dense media of variable and/or different specific gravities from a single dense suspension of heavy comminuted particles in a liquid
IPC: B03B13/00
Filed: 1953-04-27
Abstract: 732,179. Washing granular materials. COMPAGNIE DE FIVES-LILLE POUR CONSTRUCTIONS MECANIQUES ET ENTREPRISES. April 27, 1953 [Dec. 9, 1952], No. 11634/53. Class 82 (2). The dense suspension required for sink and float separation of granular materials is obtained at a predetermined density by an apparatus having a settling tank in which the bulk liquid is freely decanted, at least one inverted cup adapted to be immersed in said liquid so as to float with its mouth at a depth or level of predetermined density, and means for drawing off the liquid of predetermined density from the interior of said cup. By using two inverted cups floating at different levels, two liquids of different predetermined S.G. may be drawn off. A settling tank 1 carries pipes 10, 13 with inverted cups 2, 6 thereover, vertical movement of the cups varying the point at which the liquid is drawn off. Counterweights 5, 7 are provided. The outlet for the selected liquid may be siphons 11, 12. A motor system for varying the height of the cups may be controlled by a density indicator in the washing vessel.
Patent GB-186094-A (GB)
Title: Improvements in high frequency telephone transmitters
IPC: H03C3/28
Filed: 1921-04-22
Abstract: 186,094. Ransford, R. B., (Naamlooze Vennootschap Nederlandsche Radio-Industrie). April 22, 1921. Thermionic oscillation generators and modulating systems.-In a valve transmitter in which high-frequency carrier waves are modulated by a microphone associated with the grid circuit, the microphone M is connected in the diagonal of a bridge arrangement, the arms of which are composed of variable inductances L', L<2> and capacities C, VC. Figs. 1 and 4 show two examples of a number of alternative arrangements described, the bridge being connected to the grid G and filament F of the valve either across one arm or across the other diagonal. The microphone may be directly shunted by an additional impedance L<3>.
Patent GB-396880-A (GB)
Title: Improvements in or relating to the manufacture of unvulcanised india-rubber from rubber latex
IPC: C08C1/00
Filed: 1932-04-23
Abstract: Coagulum in crumb or powder form is produced by adding substances to latex which render the wet coagulum short and weak, coagulating, cr<\>zepeing by passing several times through rolls the spacing of which decreases as the operation proceeds, and disintegrating the shredded cr<\>zepe thus obtained.  The additions may be substantial quantities of mineral compounding ingredients, such as china clay, carbon black, or zinc oxide, or substances which dissolve in the caoutchouc without causing coagulation, such as oleic acid, stearic acid, ammonium stearate, linseed oil, palm oil, lecithin, and other higher fatty acid compounds.  Disintegration is preferably effected by rubbing the cr<\>zepe through a sieve, in which case it is necessary to employ a dusting powder to prevent subsequent coherence of the particles. Such powders may be talc, zinc stearate, powdered antioxidants, sulphur, accelerators such as lecithin.  According to an example, 7 litres of 40 per cent latex have added thereto 35 gm. powdered stearic acid, and after 20 mins., 7 litres of 5 per cent acetic acid.  The coagulum is washed and cr<\>zeped by passing six times through rolls, the nip of which progressively decreases from 0,1 in. to 0,0015 in.  This material is passed three times between smooth rolls, and is immersed in ammonia and dusted with zinc stearate before the third passage.  The resulting coarse crumb is immersed in ammonia, washed, squeezed, mixed with 1 gm. zinc stearate per 100 gm. crumb, and passed through a disintegrator containing a sieve having 16 meshes per in., and finally dried on trays.
Patent GB-682709-A (GB)
Title: Manufacture of salt
IPC: A23L27/40
Filed: 1950-05-11
Abstract: Lump salt, formed by packing into moulds the crystals from brine evaporating in a crystallizing pan and drying the blocks so formed, is iodized by adding to the brine prior to its delivery to the crystallizing pan a solution of an inorganic iodine compound, e.g. potassium iodide, in such a proportion that the brine adhering to the salt filled into the mould shall contain p  sufficient iodine to iodize the lump to the desired degree.
Patent GB-165595-A (GB)
Title: Improvements in driving gearing for motor trucks
IPC: F16H1/16
Filed: 1920-04-28
Abstract: 165,595. Hudson, W. F. April 28, 1920. Gearing with provision for permitting flexure or distortion; extensible driving-shafts. - In a motor-truck the longitudinal propeller shaft and its casing are removed and replaced by a readilyfitted telescopic shaft having a universal joint at each end. When the propeller shaft and casing have been removed, the worm-shaft 11 is left projecting from its bearing 16 in the axle casing 10. A plate 14 carrying a plain or other bearing 17 is bolted to the axle casing. The splined end of the shaft 11 is now engaged by a driving member 24 to which is connected a driving shaft 30 having a sliding joint 31 and universal joints 29, 32. A bearing sleeve 13 is fitted on the shaft 11 within the bearing 17, and a felt washer 18 is provided to prevent escape of lubricant from the axle casing 10.
Patent GB-400600-A (GB)
Title: High tension and grid bias wireless batteries incorporating improved tappings
IPC: H01M6/42
Filed: 1932-04-25
Abstract: 400,600. Galvanic batteries. PAPPADAKIS, A. R., 18, Waverley Way, and SIVESS, N. J., 16, Waverley Way, Carshalton Beeches, Surrey. April 25, 1932, No. 11809. [Class 53.] A high-tension battery is provided with a sliding contact 13 in the form of a socket which moves in a slot in the cover 9 and makes contact with the positive or negative cell poles 5 which project through the sealing material 8. The cover 9 may be supported by wood members 11 which are pressed into the surface of the sealing material 8. The ends of the slot in the cover are enlarged to allow the contact 13 to be inserted. The contact is in the form of a tube having a spring-pressed disc 15 at its lower end as shown in Fig. 6. The tube may be surrounded by a grooved insulating member 18 which slides in the slot in the cover. The member 18 may be dispensed with, in which case the upper end of the spring 16 abuts against a washer which bears against the undersurface of the cover 9. The latter may also be dispensed with, the slot being formed in an outer cover 21. Defective cells may be shortcircuited by a metal rod 23 inserted in slots in the polepieces 5.
Patent GB-1468266-A (GB)
Title: Construction arrangements for building and the like structures
IPC: E04B1/24
Filed: 1975-05-15
Abstract: 1468266 Structural joints J W PRATT 15 May 1975 [16 March 1974] 11814/74 Heading F2M [Also in Division E1] A building or like structure comprises stanchions 2 connected together at an angle by a plate 8 in the shape of a trapezium, each stanchion being of hollow form, e.g. of sheet steel formed to the cross-section shown, providing grooves 4 and a slot 6, and the plate 8 having its two non-parallel side edges 14, (16) adapted, e.g. by spacer sleeves 17 welded on opposite sides of the plate to fit into the slot 6 of two of the stanchions 2 to be secured together at an angle equal to that between the sides 14, (16) of the plate 8. Securing bolts are passed through apertures in the bases of the grooves 4 on either side of the slot 6, through the sleeves 17 and through apertures in the plate 8 to secure the assembly.
Patent GB-576837-A (GB)
Title: Improvement in or relating to abrasive composition
IPC: B24D3/28
Filed: 1943-07-21
Abstract: Grinding-wheels and like abrasive articles are prepared by making a mix of abrasive grains (alumina, silicon carbide, quartz, glass, garnet or diamonds), an aromatic amine formaldehyde resin and di-2-chlorethyl phthalate, maleate or succinate, shaping and heating the mix.  The esters act as wetting and plasticising agents and on heating cross-link with the aromatic amine resin and harden it.  525 grs. abrasive grains wet with 20 c.c. di-2-chlorethyl phthalate are mixed with 165 grs. of a mixture comprising 65 per cent aniline-formaldehyde resin, 30 per cent cryolite and 5 per cent soluble anhydrite.  The mixture is shaped in a mould, stripped therefrom and heated from 95-175 DEG  C. for 2 hours.  Specification 576,882 is referred to.
Patent GB-1492826-A (GB)
Title: Pickup arm control for disc player
IPC: G11B21/04
Filed: 1975-03-21
Abstract: 1492826 Moving transducer heads RCA CORPORATION 21 March 1975 [25 March 1974] 11897/75 Heading G5R A transducer assembly 11 can be moved either towards the centre of a disc record 2 at one speed, e.g. for playback, by clamping at 48 to a first drive belt 42, or towards or away from the centre at a different speed, e.g. for forward or back spacing, by clamping at 36 or 34 to a second drive belt 22. A latch 68, 74 holding the assembly in inoperative position is released by operation of clamp 36, and a switch 62 may transfer operation from clamp 36 to clamp 48 when the transducer reaches the start of the record. Release of clamp 48 lifts the transducer from the record.
Patent GB-528053-A (GB)
Title: Improvements relating to filing systems
IPC: B42F15/02
Filed: 1939-04-20
Abstract: 528,053. Filing papers &c. YOUNG, S. G. April 20, 1939, No. 11907. [Class 146 (i)] In filing systems employing folders supported on horizontal guide-rails, both edges of a folder have combined stiffening and supporting strips, which serve for loosely coupling together the leaves f<SP>1</SP>, Fig. 1, of the same or adjacent folders, and also serve as, or support, an indexing label. One of the stiffening -strips S<SP>1</SP>, S<SP>2</SP>, Fig. 3, may be formed with a channel-shaped coupling-element C, which embraces an adjacent strip. The ends of the strips are formed with hooks H or with small wheels &c. to engage the supporting-rails r. Short interfitting channel-members C, Fig. 5, may be employed, and may carry frames C<SP>2</SP> for displaying index-strips. The coupling-members may be L-shaped, as shown in Fig. 7. Adjacent leaves may have flanges extending in opposite directions, so as to form a T-shaped assembly, which is embraced by a clip of flattened C-shape. Reference has been directed by the Comptroller to Specification 526,470.
Patent GB-401192-A (GB)
Title: Recording of sound
IPC: G11B7/00
Filed: 1933-04-24
Abstract: 401,192. Optical sound-recording apparatus. RADIO CORPORATION OF AMERICA, 570, Lexington Avenue, New York, U.S.A. April 24, 1933, No. 11918. Convention date, July 11, 1932. [Class 40 (ii).] Optical recording- apparatus designed to reduce background noise by limiting the clear part of the film to the necessary minimum comprises a low-impedance coil 14 fed with currents corresponding to the actual sound impulses and a high-impedance bias coil 15 fed with currents corresponding to the envelope of the impulses, both coils controlling a common armature 13 the free end of which pivots in a block 19 carrying a mirror 16 and supported by a strap 17. The bias coil 15 is fed with the sound currents through a rectifier and filter, the latter of which may accentuate the higher frequency components. The apparatus may be used with an optical system in which the movements of the image of a triangular aperture illuminate more or less of the width of a slit thus producing a record of varying width down the centre of the film, or with a system in which the medium line is shifted so that the record peaks are maintained near one edge of the film. In the latter system an apertured screen in the path of the beam serves to permit observation of the movements of the beam.
Patent GB-305877-A (GB)
Title: Apparatus for producing an intimate mixture of several media by means of centrifugalforce
IPC: F24F6/06
Filed: 1928-04-23
Abstract: 305,877. Janes, P. April 23, 1928. Addition to 283,975. Mixing-apparatus; spreading liquids. -- An apparatus for producing an intimate mixture of several media as described in the parent Specification has a running wheel w provided with a single set of blades 5; the gaseous medium enters the wheel through the openings y while the liquid and pulverulent media are drawn from the container 14 through the suction pipe 28. The mixture passes across the annular corrugations 9<1>, 9 and leaves the wheel by the annular discharge opening z. A stationary deflector s of porous material causes the larger particles in the mixture to collect on the flange 26 of the container 14 from which they pass again into the container. The suction pipe is detachable and may be replaced by another of different size. Vertical channels 36 are arranged in the container in order to increase the air supply. An annular reservoir 30 is arranged round the motor 1 and is connected to the container 14 by a pipe 32. A float 33 operates a valve 34 to maintain a constant level in the container. With a number of machines on the same level, one reservoir and one governing valve will supply and control the fluid for all.
Patent GB-510374-A (GB)
Title: Cross bar selecting switches
IPC: H01H67/26
Filed: 1938-04-21
Abstract: 510,374. Cross-bar switches. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). April 21, 1938, No. 11984. [Class 40 (iv)] In a switch of the type described in U.S.A. Specification 2,021,329, the operating springs such as 16, 17 are provided with sloped projecting portions 40, 41 so that if a selecting (horizontal) bar 5 is operate while an actuating and holding (vertical) bar 6 is operated the selecting finger 20 at the intersection is guided to its correct position when the vertical bar is released. The actuating springs also have stops 30, 37 and depressed portions 33, 39 in which the finger is held by the actuating bar after the restoration of the selecting bar.
Patent GB-552128-A (GB)
Title: Improvements in coupling means for uniting lengths of angle section metal rods, barsand the like
IPC: E04B1/58
Filed: 1941-09-19
Abstract: 552,128. Wall and ceiling coverings. HITCHENS, S. Sept. 19, 1941, No. 12054. [Classe 20 (ii) and 20 (iv)] Lengths of angle section rods a<SP>1</SP> used for supporting wall and ceiling boards, are united by a U-shaped bent metal junction b which slidably engages in slots c cut in the webs a at the ends of two abutting rod lengths. H-section rods are united by two U-shaped junctions or by a C- shaped junction engaging slots. in the webs adjacent both flanges of the rods. To, facilitate the connection of an end length, the U-shaped junction is only partially bent before application and is bent to its final form after engaging the slots in the rod lengths. The junctions may be bolted to the rods.
Patent GB-165284-A (GB)
Title: Improvements in the manufacture of metal castings
IPC: B22D7/10
Filed: 1920-04-30
Abstract: 165,284. Dodgson, A. H., Trotter, G. W., and Dodgson, W. April 30, 1920. Moulds.-In casting iron, gunmetal, brass, &c., a header A having an elongated or rectangular gate C is used. The header A is composed of or is lined with refractory material D and has one or more narrow slots C to feed one or two metal moulds B. If the mould is 5¢ ft. deep and 1 to 1“ sq. ft. in section, the slot may be 8 in. long and # in. wide. The shape of the header and of the slot may be modified to suit an intricate casting. The metal connecting the casting and the metal in the header is easily broken if it does not break during cooling.
Patent GB-494677-A (GB)
Title: Improvements in or relating to television or like systems
IPC: H04N5/12
Filed: 1937-04-28
Abstract: 494,677. Television receivers ; valve generating circuits. BAIRD TELEVISION, Ltd., and GILBERT, A. H. April 28, 1937, No. 12094. [Classes 40 (iii) and 40 (v)] A unilateral conductor, e.g. a diode 3, is connected between the anode of a valve 1 which separates synchronizing signals and the grid of a scanning oscillator 4 so as to prevent negative potentials developed on the grid being fed back to the anode. The oscillator 4 is preferably that described in Specification 456,640.
Patent GB-494678-A (GB)
Title: Improvements in boiler feed water regulators and liquid level indicators
IPC: F22D5/14
Filed: 1937-04-28
Abstract: 494,678. Thermal switches. HAYWARD, TYLER, & CO., Ltd., and HOWARD, G. P. E. April 28, 1937, No. 12111. [Class 38 (v)] A boiler feed water regulator comprises a cast iron plate 1 to which is connected one end of a brass tube 4, the other end of which carries a socket 5 having an adjustable tappet 8 for engaging the operating member of a snap-action switch 10. The upper end of tube 4 is connected with the vapour space of the boiler and the lower end is connected to the water space. As the water level in the boiler changes, the length of tube 4 which is exposed to vapour is varied and the consequent expansion or contraction operates the switch to control a feed pump or valve or to operate an alarm. The switch 10 may be a tilting mercury switch, or a switch of the kind described in Specification 419,917.