baber/WOPTO huggingface dataset:
Patent GB-1353821-A (GB)
Title: Variable display devices
IPC: B44F5/00
Filed: 1971-05-06
Abstract: 1353821 Animated displays R L CLOUTIER 6 May 1971 [7 May 1970] 13569/71 Heading G5C A display device comprises a mass of fine, dry, rigid particles including at least two groups, those of the second group having physical characteristics not possessed by the first group, the particles tending to remain in their own groups when the device is moved manually or mechanically. The particles may be of four different types 21 to 24 contained between glass plates 18, 19. Particles 21 are NaCl crystals, particles 22, 23 are glass beads and particles 24 are glass microballoons. Upon agitation of the device, different flow patterns are produced, enhanced by different colours applied to the four different particle groups or classes. The device may be illuminated by light transmission or reflection, Fig. 5 (not shown). One or more particle classes may have fluorescent coatings, in which case ultraviolet light may be used. The particles may be coated with a heatactivatable adhesive material so that the particles, although initially dry, may be caused to adhere after a particular design is obtained, and hence the design becomes fixed. In alternative embodiments, Figs. 4 and 6 (not shown), the glass plates may be in the form of a circular and convex disc, or in the form of concentric cylinders with an axial source of illumination. If one class of particles is magnetic, e.g. iron filings, a magnet may be externally applied to provide an additional means for changing the pattern. A light may be shone through the device to provide an image which may be projected on a screen, e.g. by the use of a standard projector. Alternatively the device in disc form, Fig. 4 (not shown), may be placed in a projector and rotated to project a varying image.
Patent GB-291940-A (GB)
Title: Improvements in or relating to display stands or supports
IPC: A47F5/11
Filed: 1927-05-21
Abstract: 291,940. Bevins, J. M. May 21, 1927. Card stands.-A collapsable stand for displaying a box &c. consists of a stop piece, engaged by the front edge of the box, and a collapsable triangular structure including a strut member hinged to the base of the triangle, the stop piece forming, in effect, an enlargement of a forward extension of the base of the triangular structure. In the construction shown, the strut member d is of stiff cardboard and the remaining sides b, c of the triangle, which are gummed &c. to a stop piece a, are of fiexible material such as paper, tape &c. In a modification, the stand is made of cardboard and the strut d is formed with a tongue at its upper end to engage a slot in the side b when the stand is erected.
Patent GB-216334-A (GB)
Title: Improvements in electrical condensers
IPC: H01G2/00
Filed: 1923-05-23
Abstract: 216,334. Dubilier, W. May 23, 1923. Condensers. - In a condensen of the kind in which the condenser elements are disposed in a number of groups or sections 7 connected in parallel, each group comprising a plurality of metallic plates arranged in alternate relation and separated by insulating plates, each individual group is connected to main conductor bars 15, 16 through the medium of light fusible, conductors 14. Adjacent groups are separated by insulators 17 and the whole assemblage is clamped between end plates 5, 6, as shown.
Patent GB-760986-A (GB)
Title: Aromatic condensation products
IPC: C07D307/91
Filed: 1954-05-11
Abstract: The invention comprises new compounds of general formula: <FORM:0760986/IV(b)/1> in which R is an aryl radical, Z is hydrogen or an alkyl radical, and X is one of the divalent radicals -O-, -S-, -NH-, <FORM:0760986/IV(b)/2> -CO-, -CH2- or -CH=CH-.  The benzene rings may be further substituted by hydrocarbon groups.  They may be prepared by condensing a diphenyl compound, bridged in the 6,61 position by one of the specified divalent radicals, with an aromatic vinyl compound in the presence of a bleaching earth. Suitable diphenyl compounds are, for example, diphenylene oxide, diphenylene sulphide, carbazole, fluorene, fluorenone, phenanthrene, N-methyl carbazole and N-ethyl carbazole. Suitable aromatic vinyl compounds include styrene, a -methyl styrene and vinyl naphthalene.  It is preferred to carry out the condensation in the presence of a volatile organic solvent, e.g. toluene, xylene or cumene.  In the examples: (a) diphenylene oxide is dissolved in xylene and condensed with a -methyl styrene in the presence of a bleaching earth; (b) carbazole is dissolved in cumene and is condensed with a -methyl styrene in the presence of a bleaching earth; (c) phenanthrene is dissolved in xylene and reacted with a -methyl styrene in the presence of a bleaching earth; (d) fluorene is dissolved in toluene and condensed with a -methyl styrene in the presence of a bleaching earth; and (e) phenanthrene is dissolved in xylene and is condensed with styrene in the presence of a bleaching earth.
Patent GB-108765-A (GB)
Title: Improvements in and relating to Autopianos and analogous Musical Instruments.
Inventor: LYON CLARENCE EDWARD
IPC: G10F5/06
Filed: 1916-09-27
Abstract: 108,765. Lyon, C. E., and Towner, A. D. Sept. 27, 1916. Registering webs. - Automatic mechanism for guiding tune-sheets in automatic musical instruments, comprises a double bellows a, the common rocking board b being connected by a link c to the frame of the music roller, and the interiors of the bellows being connected by pipes d to a pair of auxiliary tracker ducts, one at each end of the tracker bar, and by passages f, small bleed-holes h and a pipe m to the main exhaust. The holes h are smaller than the auxiliary tracker ducts.
Patent GB-117181-A (GB)
Title: Improvements in and relating to Electrical Systems of Power Transmission and Regenerative Braking.
IPC: H02P3/14
Filed: 1917-09-24
Abstract: 117,181. British Thomson - Houston Co., (General Electric Co.). Sept. 24, 1917. Systems for continuous-current motors only.- A series motor runs regeneratively with a source of variable electromotive force connected across its field winding and varied by means responsive to the regenerated current. In the first position of the controller, the machine 1, Fig. 2, runs as a series motor, its armature 2 and field coil 3 being connected between the trolly and earth. The circuit also includes a field winding 12 of the exciter 10 opposed to the shunt field winding 11. The exciter armature is disconnected and runs idly. To start regenerative braking, the controller is moved to its second position. This reverses the connexion of the field coil 3 with respect to the armature 2 and connects the exciter 10 across the coil as shown in Fig. 3. The coil 12 carries the regenerated current, and, when this is large, part travels through the coil 3 and part through the armature 10 in opposition to the exciter electromotive force. When the regenerated current is small it is assisted by the exciter current to energize the coil 3. Further movement of the controller cuts out the resistance 16 in steps.
Patent GB-1146181-A (GB)
Title: Improvements in or relating to power assisted steering
Inventor: ALDERTON HOWARD KENNETH
IPC: B62D5/22
Filed: 1966-03-29
Abstract: 1,146,181. Power-assisted steering. CAM GEARS (LUTON) Ltd. 25 Nov., 1966 [29 March, 1966], No. 13749/66. Addition to 1,111,565. Heading B7H. In a rack and pinion steering mechanism in which an hydraulic servopiston 23 moves, with the rack bar 1, in a cylinder 21 which is rigid with a steering box 2 housing the pinion 3, the pinion is borne by a lever-like member 11 which is pivotally mounted in and projects from the steering box and is articularly connected at 14 and 15 to a slide valve in a valve unit 17 rigid with the steering box 2 and the piston 23 works in the annular space 22 between the cylinder 21 and a coaxial cylinder 19. The piston rod 24 is pivotally connected to the rack bar by a pin 25 and the rack is maintained in engagement with the pinion, which is borne in two ball races 12, 13 (Fig. 2) in the lever-like member, by an adjustable spring 6. The pinion shaft extends through the wall of the steering box through a flexible seal which permits rocking of the shaft.
Patent GB-740157-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: FORRESTER PETER GARNETT
IPC: F16C33/12
Filed: 1952-05-30
Abstract: A plain bearing comprises a steel backing having a porous iron layer, obtained by sintering metal powder containing 95 per cent or more of iron, impregnated with tin or tin base alloy, bonded thereto.  In one method of making the bearing, a layer of tin-base alloy powder mixed with 0.05 per cent by weight of ammonium chloride is spread on a layer of sintered iron which is then passed through a reducing atmosphere furnace at about 350 DEG  C. causing the tin alloy to penetrate the pores in the iron and leave an overlay of about 0.002 inch.  In a modification a steel backing having a porous iron layer bonded thereto is passed through a bath of molten tin-base alloy under reduced pressure.  The tin-base alloy is then solidified by quenching.  The porous iron layer may be produced by means of a spray gun.  The tin-base alloy may comprise 90 per cent tin, 7 per cent antimony and 3 per cent copper.  Specification 496,763 and 544,903 are referred to.
Patent GB-748413-A (GB)
Title: Manufacture of fluorinated ketals and acetals
Inventor: BOURNE EDWARD JOHN
Filed: 1953-05-18
Abstract: Fluoroketals and fluoroacetals are obtained by condensing a fluorinated ketone or a fluorinated aldehyde with a hydroxy carbon compound.  If a polyhydroxy carbon compound is employed, a heterocyclic compound is obtained.  According to Examples: (1) a mixture of dry ethyl alcohol, ammonium chloride and a -trifluoroacetone is kept at 15 DEG  C. for 1 week, the resulting ketal being recovered by distillation; (2) a mixture of mannitol, concentrated sulphuric acid and a -trifluoroacetone is shaken at 15 DEG  C. for 4 days, the mixture then being diluted with water, extracted several times with chloroform, the extracts washed with NaHCO3, dried and evaporated to give a residue which on distillation in vacuo gave the pure triketal; (3) a mixture of sorbitol sulphuric acid and a -trifluoroacetone is similarly treated to give the triketal; (4) a mixture of mannitol, heptafluorobutyraldehyde and sulphuric acid similarly treated gives a mixture of acetals.  By using less ketone or aldehyde partially substituted ketals or acetals may be obtained.  The products may be used as stable oils, hydraulic fluids, heat transfer media or solvents.
Patent GB-1011830-A (GB)
Title: Aircraft undercarriages
IPC: B64C25/12
Filed: 1964-04-03
Abstract: 1,011,830. Jacks. RECHERCHES ETUDES PRODUCTION R.E.P. April 3, 1964 [May 8, 1963], No. 13882/64. Addition to 1,010,920. Heading B8J. [Also in Divisions B7 and E2] A jack for releasing a safety catch in a retractable aircraft undercarriage comprises a fluid actuated spring-biased piston 30 in a cylinder 31. The piston is fixed to a rod 29 which extends out of the cylinder and engages a spring-loaded sleeve 27 to which is fixed a rod 26 connected to the safety catch.
Patent GB-919478-A (GB)
Title: Improvements in and relating to a method of and apparatus for mixing loose solid materials
IPC: B65G69/10
Filed: 1960-04-20
Abstract: 919,478. Mixing granular material ; average discharge apparatus. STAMICARBON N.V. April 20, 1960 [April 21, 1959], No. 13886/60. Class 86. [Also in Group XXX] In a method of mixing loose solid material such as coal, the materials 1 are filled in horizontal strata into a V-shaped bunker 2 having a discharge slot 3 through which the materials pass to rest on a bottom plate 4. The bunker is filled from one end leaving a sloping face 11 of material against which operates a rake 10; loosened materials taken from all the strata then commingle as they flow to the bottom of the slope where they are swept off the plate 4 as by a discharge wheel 13 on to a band conveyer 14. The rake 10 may be a rotating spindle having radial pins 12 and attached as at 9, 9<SP>1</SP> to a vertical spindle 8 having a motion of rotary reciprocation, so that the rake 10 while rotating about its own axis sweeps out a sector of a cone against the slope 11. The angle of inclination of the rake is adjustable to be the same as the angle of repose of the slope 11, and the pins 12 may be longer at the foot of the rake. The rake and the discharge wheel 13 travel together along the length of the bunker, the discharge rate of the wheel and the longitudinal motion being co-ordinated. There may be more than one rake and in a wide bunker the rake(s) may be mounted for complete revolution about the spindle 8 instead of reciprocation. The discharge wheel 13 may be replaced by plates covering the slot 3 which are progressively removed as discharge takes place.
Patent GB-273871-A (GB)
Title: Improvements in electric switches
IPC: H01H13/28
Filed: 1926-06-02
Abstract: 273,871. Denny, C. W. June 2, 1926. Retractive switches; switches, qvick-action; handles. - In switches fitted in the handles of electric irons &c., a knife-blade F operated on and off with a quick action carries insulated contacts f<1>, f<2> on opposite sides of the blade adapted to engage fixed contacts G<1>, G<2>. G<3> arranged to provide four breaks in series. The contacts G<1>, G<2>, shown separated in Fig. 5, are mounted on the contact G' but insulated from it, and current is adapted to flow from the contact G<1> along the blade f<1> to the contact G<3> and thence along the blade f<2> to the contact G<2>. This contact arrangement is a modification of that described in Specification 189,573, the lessened resistance it offers to the knife blade making it specially suitable for a " quick-make " switch. The blade F is actuated on and off by a " dead-centre " toggle arrangement H connected to the grip handle B which is returned to the position shown, when released, by a retractive spring K. The handle B may be retained in the " on " position by the fusible cartridge described in Specification 258,990. The leads to the switch may comprise respectively the one end of the heating resistance of the iron, reinforced and brought up to the handle, and an asbestos-covered stranded copper cable.
Patent GB-475501-A (GB)
Title: Improvements relating to hydraulic power transmitters
IPC: F16H41/30
Filed: 1936-05-18
Abstract: 475,501. Hydraulic transmission of power. CAMPBELL, D., and CRAIG, T. J. May 18, 1936, No. 13995. [Class 69 (ii)] In a hydraulic power transmitter of the type wherein a vaned impeller of the outward radial flow type discharges directly into a single-stage turbine wheel from which the liquid is discharged radially into a casing which encloses a working chamber in which the liquid returns to the impeller, a plurality of byepass outlet passages open out radially from the working chamber at points where the liquid is in radially outward motion after leaving the turbine vanes and means are provided whereby liquid which leaves the working circuit through these passages is returned to the working circuit near the inlet to the impeller. As applied to the reversible transmitter described in Specification 367,241, liquid in radially outward motion after its discharge from the ahead turbine vanes D leaves the working circuit through ports in the casing I, each of these ports being connected by a pipe 3 to a chamber 6 communicating with the box 4 which in turn communicates through one or more ports 5 in the casing H with the working circuit near the inlet to the impeller B. The pipes 3 being outside the casing are air-cooled. Alternatively, the separate pipes may be replaced by a chamber surrounding the casing. According to the Provisional Specification, an air release valve may be provided in the external circuit in combination with suitable baffle devices for the admission to or escape of air from the external circuit and for preventing the discharge of the working liquid through said air release valve during fluctuations in the speed of the impeller ; the air release valve and baffle devices may be fitted to the box enclosing the hub of the impeller.
Patent GB-169481-A (GB)
Title: Improvements in glass manufacture
IPC: C03B11/00
Filed: 1920-05-21
Abstract: 169,481. Hailwood, E. A. May 21, 1920. Gauge glasses and the like.- In making cylindrical glasses suitable for lubricators &c., rings R, R<1>, of aluminium &c. may be placed in the mould A so as to adhere to the glass and form the top and bottom edges.
Patent GB-537602-A (GB)
Title: Method of and apparatus for the production of artificial fibres such as glass fibres
IPC: C03B37/03
Filed: 1940-09-12
Abstract: 537,602. Artificial fibres. GLASS FIBRES, Ltd. Sept. 12, 1940, No. 14130. Convention date, Sept. 12, 1939. [Class 2 (ii)] [Also in Group XXIII] A method of forming fibres from molten material comprises flowing a stream of the material from an orifice into contact with an endless surface moving substantially in the direction of flow, and forcing the stream against the surface, to exert a drawing action on the stream, by establishing a differential air pressure on opposite sides of the surface. The method may be used to produce straight fibres, or fibres which are so crimped that they interlock with one another to form a tangled or felted mat. As shown, streams 12, Fig. 1, of molten material flow from apertures in a feeder 10, the temperature of the streams being regulated, if desired, by blowers 13, as described in Specification. 482,085, [Group XXIII]. The streams are drawn out by a rapidly rotating drum 14 of squirrel-cage construction composed of parallel bars 15 secured between end plates 16. The streams are forced into contact with the drum by blasts of air from a blower 19, or by an air flow caused by a suction hood arranged inside, or surrounding part of the outside, of the drum 14. If desired, both the air blast and the suction may be used together. In another construction, shown in Fig. 10, the bars 617 are carried by a pair of endless parallel chains 615, the fibres 12 being forced against the bars either by a blower 619 or a suction box 642, or by both together. The fibres may be straight or crimped according to the temperature of the streams as they reach the drum, the temperature being controlled by regulating the blowers 13. Crimping also is effected if the fibres are still plastic as they leave the drum, the crimping being due to the high speed at which the fibres move. The crimped fibres may be collected on a moving band, and interfelting may be caused by passing the matted product beneath driven rollers which may also be reciprocated longitudinally to felt the material. Any " shot " that may be formed with the fibres is thrown off by the drum and may be collected in a shoot 27. Materials such as cellulose acetate, resins or sugar may be used to produce the fibres.
Patent GB-671949-A (GB)
Title: Improvements in or relating to machines for performing lasting or analogous operations upon shoe parts
Inventor: LANE HAROLD
IPC: A43D21/12
Filed: 1949-05-27
Abstract: 671,949. Lasting shoe uppers. BRITISH UNITED SHOE MACHINERY CO., Ltd. May 26, 1950 [May 27, 1949], No. 14199/49. Addition to 598,216. Class 17 (i). The rotary device 320 of Specification 613,393 is replaced by a member 501 comprising a substantially vertical freely rotatable but undriven spindle 505 and an enlarged head portion 503 which is convex on its underside and concave on its upper face. The spindle 505 is adjustable heightwise in a trunnion block 512 pivoted to a bracket on the machine frame and operable by a treadle to facilitate introduction of the work. In operation, the rear edge of head 503 of the device 501 projects slightly beyond the edge of shoe bottom member so as to tend to separate the portion of lasting margin just in advance of gripper from edge of shoe bottom member. The head 503 is rotated by contact with the lasting margin of the stock, and the pulling action of the grippers is facilitated. According to the Provisional Specification the device may be mounted in a machine constructed as in Specification 648,073.
Patent GB-1001232-A (GB)
Title: Improved fuel system for a gas turbine engine
Inventor: HUNT EDGAR GERALD
IPC: F02C9/16
Filed: 1961-04-20
Abstract: 1,001,232. Gas turbine fuel sustems. DOWTY FUEL SYSTEMS Ltd. April 19, 1962 [April 20, 1961], No. 14335/61. Addition to 834,916. Heading FIG. A fuel system for a gas turbine engine comprises a fuel pump 1 delivering to the engine combustion chamber, a by-pass valve responsive to an engine control and a slowly adjustable restrictor 23 which maintains a minimum fuel flow when the by-pass valve is substantially fully opened or fully opened. The setting of the by-pass valve is determined by the compression of a spring 9 acting on a rod 11 which contacts levers 13 of governor weights 6. The adjustable restrictor 23 is connected to the compressor inlet by a pipe 26 containing a fixed restrictor 27. Rapid movement of the lever 4 to reduce speed may open the by-pass valve to such an extent that insufficient fuel for combustion is pumped. This is prevented by the restrictor 23, the setting of which varies with atmospheric pressure.
Patent GB-1101467-A (GB)
Title: Improvements relating to the cooling and ventilation of air-cooled internal combustion engines
IPC: B60F3/00
Filed: 1966-03-31
Abstract: 1,101,467. Engine covers; cooling motors. DAIMLER-BENZ A.G. 31 March, 1966 [1 April, 1965], No. 14363/66. Heading B7H. [Also in Division F1] A water-tight casing 10 for an air cooled engine 12 is provided with cooling air intake and discharge passages 22, 23, separated by partitions 21, flap valves 24-26 therein being controlled by a thermostat responsive, at least, to engine temperature. During normal running flaps 26 are closed and flaps 24, 25, open so that fresh air is drawn, in through passage 22 and the heated cooling air discharged through passage 23. During starting or cold running conditions, flaps 24, 25, are closed and 26 open so that the warmed cooling air is recirculated. The passages 22, 23, are surrounded by a filter casing 39 with openings in its upper part 39 and by-pass flaps 35 in its side walls. Flaps 35 are opened for normal running conditions to bypass the filter and closed when the atmosphere is contaminated, the fresh cooling air then entering through the filter. Stagnant air in the base 30 of the casing 10 is removed by pipes 32 leading to the suction side of the cooling air blower 14. Servo means may be interposed between the thermostat and the flaps.