baber/WOPTO huggingface dataset:
Patent GB-1139184-A (GB)
Title: Torque-sensitive infinitely variable change speed gear
IPC: F16H61/662
Filed: 1966-04-29
Abstract: 1,139,184. Variable-speed gear. PIAGGIO & C. S.p.A. 29 April, 1966 [15 May, 1965], No. 19024/66. Heading F2D. The speed ratio of an I.C. engine transmission comprising driving and driven expandable sheaves connected by a V-belt, is steplessly varied by (a) speed sensitive means, comprising centrifugal masses, which upshifts the transmission as the speed of the driving sheave increases, and (b) torque sensitive means effective to counteract (a) to downshift the transmission when the transferred torque is increased above a predetermined value. In Fig. 1, driving half-sheave 6 is axially movable to increase, or decrease, the diameter wrapped by V-belt 11, (a) by means of centrifugal masses 9 as the speed of the driving shaft 1 increases, and (b) by means of sleeve 2, which has a helical path 4 in which a pin 3 on the driving shaft runs, and which sleeve, above a value of torque which corresponds to the pre-loading at assembly of spring 8, abuts stops 10 on guides 5 to downshift the transmission. Preloading of the spring 8 may be obtained through a lost motion stroke of the sleeve 2. In Figure 2, (not shown), centrifugal masses 25 move helical ramps 20 on which rollers 20<SP>1</SP>, of a pitman 21 connected to the movable halfsheave 17<SP>1</SP>, run to upshift the transmission. A box 16, connected to axially-fixed halfsheave 17 and carrying toothed sections 14 which mesh with a pinion 13 on the driving shaft 12, is rotated by a transferred torque giving rise to an angular displacement of sectors 14, counteracted by pre-loaded springs 18, which sectors act on the masses 25 to return them to the centre to downshift the transmission.
Patent GB-1111571-A (GB)
Title: Differential current amplifier
Inventor: DORSMAN ADRIAN KRYN
IPC: H03F3/45
Filed: 1965-05-05
Abstract: 1,111,571. Differential amplifiers. NORTH AMERICAN AVIATION Inc. 5 May, 1965, No. 19031/65. Heading H3T. A differential amplifier has an output stage which amplifies both voltage and current and which has a point from which common mode signals are fed back negatively to the input terminals. As shown, the output stage provides both current and voltage amplification for the signal derived from the collectors and has a common emitter point from which common mode signals are fed back negatively through resistors 13 and 14 to the bases of the input transistors. Negative feedback is also provided for the differential signals and the common emitter impedance 36 of the output stage may be replaced by a constant current transistor (Fig. 2, not shown).
Patent GB-1083801-A (GB)
Title: Improvements in or relating to telecommunication system
Inventor: FLOWERS THOMAS HAROLD
IPC: H04Q1/444
Filed: 1965-05-06
Abstract: 1,083,801. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. April 29, 1966 [May 6, 1965], No. 19116/65. Heading H4K. Supervisory signals between two exchanges interconnected by a group of junctions are sent' over all the junctions which do not carry conversation, each signal being indicative of the condition it represents and of the junction to which it relates. The signals concerned are normally call and clear forward signals from the outgoing end, and reply, clear back and release hold signals from the incoming end. The system described employs recurrent pulse technique, and the signals may take the form of a 2-out-of-6 code. Common sending and receiving equipment at both exchanges includes a memory having a compartment individual to each junction with means for scanning the compartments. Each such memory comprises a matrix of ferromagnetic elements. The junctions may be 4-wire, and VF numbersending is employed over the selected junction between registers at the two exchanges. An additional junction not used for normal traffic may be provided in case all the regular junctions are in use.
Patent GB-739111-A (GB)
Title: Means for supporting a dropped foot
IPC: A61F5/01
Filed: 1953-07-10
Abstract: 739,111. Dropped-foot appliances. BLACKBURN, W. D. July 2, 1954 [July 10, 1953], No. 19178/53. Class 81 (2). A dropped-foot appliance comprises a relatively stiff spring member of J-shape having an upwardly directed part to be secured above the ankle and a forwardly extending part to rest upon the user's instep within a shoe, boot or a band passing round the boot. The appliance comprises a plate of spring metal having an upwardly extending portion 11 which is secured to the user's leg by straps 19, 20 and a portion 13 which extends over the user's instep and is held against the foot by the user's footwear or a band passing round the foot (not shown). The forward end of the instep portion 13 may be deflected so that it lies against the side of the instep (not shown). The plate has a padding of felt or plastic material, and may be perforated for ventilation. The plate may be formed in two pieces (not shown) which can be flexed relative to one another against a stiff resistance to vary the angularity between the upwardly and forwardly extending parts. The device may be built into the tongue of a boot or shoe (not shown).
Patent GB-1209123-A (GB)
Title: Weaving method, weft selection device for use in carrying out the method, and fabric produced by the method
IPC: D03D47/38
Filed: 1968-04-23
Abstract: 1,209,123. Weft selection; shuttleless looms. NORTH AMERICAN ROCKWELL CORP. 23 April, 1968 [24 April, 1967], No. 19210/68. Heading D1E. A shuttleless loom which inserts hairpins of weft has a weft selection mechanism which presents weft to an inserter so that the first pick of a cycle inserts the second leg of a previously inserted hairpin, the second pick inserts the first leg of a new hairpin of the same weft, selection is then made and the third cycle inserts the second leg of the selected weft, the fourth cycle inserts the first leg of a hairpin of the same weft as selected in the third cycle, selection is then again made and weaving then proceeds with a selected weft always being inserted as the second leg of a previously inserted hairpin followed immediately by the first leg of a new hairpin of the same weft. In Figure 4 selection bars 80 to 84 are pivoted on a spindle 37 and, when selected, are pivoted clockwise by Bowden cables 93 to 96. The ends of the bars 80 to 84 have pins 87 which run in cam tracks 78 of plates 77 which are pivoted on a spindle 36 of a longitudinally movable rod 23. Pivotal weft guides 41 to 44 have plates 60 which are acted on by pins 79 of the plates 77. In use, and with all the guides 41 to 44 in the lowermost non-selected position of Fig. 2 and with all the wefts extending through the mechanism to the selvedge and into ithe fabric as first legs of hairpins, selection is made. The selected arm 80 then pivots to pivot the plate 77 (Fig. 6) so that it moves to an intermediate position A (Fig. 7) to move a weft guide eyelet 59 to position B, the selected weft then being in a position to be depressed by a presenter 105 in the path of a forked weft inserter operated by a tape wheel. As insertion is made the rod 23 is moved longitudinally so that a nose 33 acts on the weft to move it into a cutter and clamp 31 so that the cut weft is straightened out in the shed and forms the second leg of the hairpin and the clamped weft end extends from the clamp 31 to the supply by way of the guide eye 59 which has now been moved to a position C (Fig. 7) so that the weft is again in position to be depressed by the presenter 105 into as the first leg of the next hairpin and will again extend to the selvedge prior to the next selection being made.
Patent GB-741508-A (GB)
Title: Air cooled turbine blade
Inventor: RAINBOW HORACE SINCLAIR
IPC: F01D5/18
Filed: 1953-07-11
Abstract: 741,508. Turbine blades. ARMSTRONG SIDDELEY MOTORS, Ltd. June 18, 1954 [July 11, 1953], No. 19297/53. Class 110(3) An air-cooled turbine rotor or stator blade of a gas turbine engine is formed of two parts 34, 35, one 34 constituting the concave surface of the blade and the other 35 the convex surface, and each part is formed with internal ribs 37. 38 which are subsequently permanently united to one another to provide internal cooling passages. Each of the blade parts may also be formed integrally with a portion of the root, the root portions also being permanently united to one another. The two blade parts are shaped so as to provide a shallow internal chamber 16 at the root end of the blade to which cooling air is supplied through ducts 20, 21. The blade shown in Figs. 1, 2 and 3 is a rotor blade whereas that in Fig. 8 is a stator blade, the the root end of which is formed with flanges 26, 27 and a boss 28, a hole 29 for a securing bolt being provided through the flanges and boss. 'The parts may be united by brazing.
Patent GB-1331137-A (GB)
Title: Foldable chair
IPC: A47C9/10
Filed: 1971-06-08
Abstract: 1331137 Folding chairs J GAIL 8 June 1971 [ 9 June 1970 3 March 1971] 19395/71 Heading A4J A folding chair comprises three upper rods 4, 5, 6 and three lower rods 1, 2, 3 pivotally connected at their lower and upper ends, respectively to a centre part 8 which includes means for locking the rods in their unfolded position, the two sets of rods being moveable in the same direction to their folded position Fig. 6 (not shown). A flexible material seat 7 is attached to the upper ends of the upper rods 4, 5, 6 by clamping the material between the ends of the rods and a clamp 34 Fig. 5 (not shown) or 170 Figs. 10-12 (not shown) or by inserting the outwardly folded ends of the rods into envelopes 138-140 Fig. 7 (not shown) sewn on to the lower face of the seat. A bag in which the folded chair may be stored may be secured to the underside of the flexible material when the chair is in use.
Patent GB-465927-A (GB)
Title: Improved apparatus for the continuous distillation of high-boiling hydro-carbons to coke
IPC: C10B55/00
Filed: 1936-07-13
Abstract: <PICT:0465927/III/1> <PICT:0465927/III/2> The apparatus described in the parent Specification for distilling and coking oils by heating the oils in individual containers forming members of a chain moved intermittently through a furnace the openings of which are sealed by sealing members placed between groups of containers, is modified in that sealing members are built into the furnace openings and the conveyer chain is comprised entirely of containers, adapted to receive oil, which are moved continuously through the furnace.  The oil containers 3 form an unbroken chain moved continuously on toothed wheels through a furnace 10 and filling and steam chambers 5, 6 arranged on each side thereof.  The entrance of the chamber 6 and exit of the chamber 5 are provided with sealing elements, Fig. 2, comprising a casing 35 enclosing a number of adjacent asbestos rings 33 provided with iron reinforcements.  The inner surface of each ring is lined with four thin steel plates 32.  Springs 34 connected by pieces 38 act on the rings 33 so that the plates are pressed against the surfaces of the containers.  Steam may be supplied to the elements through nozzles 36.  The containers are filled from a vessel 29 and after passage through the furnace where the oil is reduced to coke are sprayed with steam to cool and harden the coke.  The coke is removed by a rotary milling head 30.
Patent GB-233209-A (GB)
Title: Improvements in or relating to tags or labels
IPC: G09F3/14
Filed: 1924-08-18
Abstract: 233,209. Thompson, F. H. Aug. 18, 1924. Label fastenings. -Tying - strings 18 are attached to tags by forming a loop, passing both ends through a single eyelet 12, Fig. 1, or through two eyelets 21, Fig. 3, in the tag, folding the ends back along the loop, and securing the four strands together close to the edge of the tag by means of a binder 17. The loop may be cut to provide free ends.
Patent GB-576464-A (GB)
Title: Improvements in and relating to potato diggers and attachments therefor
IPC: A01D19/10
Filed: 1944-10-11
Abstract: 576,464. Potato harvesters. DUNCAN, J. Oct. 11, 1944, No. 19560. [Class 6 (iii)] Relates to potato harvesters of the type comprising a conveyer having side walls 1, 2, and laterally spaced longitudinally extending bottom bars 3 between which travel pins 7 on transverse bars carried by side chains 6, the chains being trained over driving sprockets 12 and return pulleys or flanged drums 14. According to the invention the pulleys or drums 14 are mounted on a spindle 13 carried by brackets 21 secured to spring urged levers 22 and the pins 7 travelling between the bottom bars of the conveyer co-operate with projecting fingers 27 on the bars 3 to eject any stones which may be picked up by the fingers. In operation, when the fingers 27 are in the, act of dislodging a stone, the spindle 13 is permitted to yield by reason of its connection to the brackets. In the construction shown potatoes are fed to the conveyer by bent arms 10 extending from a shaft 9 above a share 4, and between each arm 10 and its neighbour is arranged a shorter arm 30 which assists in throwing shaws on to the conveyer. The driving shaft 11 for the chains 6 is driven as shown from the shaft 9. To provide the spring support for levers 22 a spring 26 is arranged between the side wall of the conveyer and one of the brackets 21, and the two levers are interconnected by a bar 24 to move in unison. The potatoes are discharged on to the ground between a textile sheet on a fixed frame 36 and an adjustable frame 33.
Patent GB-1385367-A (GB)
Title: Illumination apparatus
IPC: G03B27/52
Filed: 1972-04-27
Abstract: 1385367 Photocopies AGFA-GEVAERT AG 27 April 1972 [27 April 1971] 19567/72 Heading G2A A lamp 3 illuminates a strip an original 4 to form an image which is projected on to a film 8 by a lens 7, the image passing through a slit 5 which is shaped to compensate for low illumination at the edges of the original and for intensity fall-off at the edges of the objective. A shield 17 prevents light from the lamp passing directly to the lens 7. Lamp 3 is preferably adjustable in directions 14, 15. The original 6 and film 8 are preferably continuously fed. The invention is intended for microfilm cameras.
Patent GB-473375-A (GB)
Title: Improvements in taps for casks or other vessels containing liquid
IPC: B67D3/04
Filed: 1936-07-14
Abstract: 473,375. Valves. BULMER & CO., Ltd., H. P., DURHAM, H. E., and THOMAS, V. BEACH-. July 14, 1936, No. 19582. [Class 135] A draw-off' tap for casks or other vessels of the kind provided with a body part adapted to be driven into the tap hole of the cask, said body being bored longitudinally from end to end to house a valve and valve-operating member, has a resilient valve member and has the operating member provided with a part outside the body to limit the movement of the valve-operating member in the direction to press the valve onto its seat. In the form shown in the Figure, the body is made of incorrodible steel, has a detachable outlet 17 and houses an indiarubber ball 18. The ball is adapted to be pressed into engagement with a seat 14 by the recessed end of a member 13 having a screw-threaded engagement with the body. The member 13 is formed with a manipulating handle 20 having a flat shoulder 21 adapted to abut the end of the body, so preventing further valve-closing movement and also providing an abutment between handle and body when hammering the body into the tap hole. In a modification, a rubber ball or a hemispherical or other rubber pad is housed in an undercut recess in the member 13 so as to move with it. According to the Provisional Specification, the end of the member 13 may be coned to engage a corresponding seat or may be fitted with a washer of rubber or vulcanized fibre. The body may be made from steel sold under the name of " Staybrite." In place of the manipulating handle the end of the member 13 may be formed with a square or two round holes to receive a key. In this modification the outer end of the member 13 in the closed position of the tap is arranged to lie flush with or slightly inset in the end of the body, thus preventing damage to the thread when forcing the tap body into the tap hole.
Patent GB-627170-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers or the like
IPC: F16F9/43
Filed: 1947-07-22
Abstract: 627,170. Hydraulic shock-absorbers. NEWTON, N. B. July 22, 1947, No. 19584. [Class 108 (iii)] In a hydraulic shockabsorber comprising a liquid filled cylinder c having a piston movable therein, a concentric outer cylinder b forming a compensating chamber partly containing liquid and partly containing air and wherein the piston-rod carries a dust cover which projects over the outer cylinder, a filling hole is provided in the wall of the outer cylinder so positioned that it is co-related with the dust cover to determine the liquid level in the outer cylinder for the correct volume of liquid in the shockabsorber. In the arrangement shown, a screwed socket a projects into the space between the cylinders band c and carries a countersunk screwed plug d. The length of the dust cover is such that its lower edge just clears the filling hole when the piston is about 2/ 3 rd of its stroke within the cylinder c, in which position the liquid level e<SP>1</SP> corresponds to that for the correct volume of liquid in the shock-absorber. The shock-absorber is filled by placing it in a horizontal position and working the piston to completely fill the cylinders band c. The shock-absorber is then raised to the vertical position and with the lower edge of the dust cover just clear of the filling hole surplus liquid allowed to drain off, before inserting the plug d. Alternatively, liquid may be inserted into the shock-absorber in situ on the vehicle to which it is attached, by means of a pump connected to the filling hole. The air in the compensation chamber may provide suspension resilience.
Patent GB-408843-A (GB)
Title: Improvements relating to non-refillable bottles
IPC: B65D49/04
Filed: 1933-07-11
Abstract: 408,843. Non - refillable bottles. GATT, J., 48, Strada Santa, Maria, Cospicua, Malta. July 11, 1933, No. 19606. [Class 125 (i).] A non-refillable bottle 1 comprises an outer casing 5, fixedly mounted on the beaded exterior of the mouth of the bottle, with a contracted upper end 6, an inner casing 7 with a contracted upper end 8 resting on the edge of the mouth of the bottle and tightly fitting the outer casing 5, an upwardly dished perforated baffle plate 9 fixedly mounted in the inner casing 7, a tapered gravity stopper 3, preferably rounded at 4, and means for limiting the movement of the stopper consisting of a disc-like member 12, located in the inner casing, preferably carried by a spindle 11 and dished to conform to the shape of the stopper head. A cap 13, fitted with a pouring nozzle, or a cork 14, may cover the discharge aperture.
Patent GB-804160-A (GB)
Title: Improvements in or relating to asbestos fibre paper
Inventor: WILSON LUCIUS HAVINGTON
IPC: D21H17/43
Filed: 1956-06-25
Abstract: A water-dispersible, linear-carbon-chain polymer having carboxylic and amide groups in relative proportions 3 : 97 to 40 : 60 and in total proportion to the linear carbon atoms between 1 : 4 and 3 : 4, or a polyvalent metal salt thereof is used for bonding asbestos fibres in making paper or board &c.  The polymers may be prepared by copolymerizing acrylamide, methacrylamide or N-hydroxyalkylacrylamides with acrylic, methacrylic or ethacrylic acids in aqueous media in the presence of ammonium persulphate. Salts may be formed by adding polyvalent metal salts such as sulphates, acetates, or chlorides of aluminium, nickel, copper, cobalt, iron, manganese, zirconium, tin, chromium, or zinc.
Patent GB-705552-A (GB)
Title: Improvements in and relating to electrical information storage apparatus
Inventor: WILLIAMS FREDERIC CALLAND
IPC: G11C11/23
Filed: 1948-11-01
Abstract: 705,552. Pulse storing and gating circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 22, 1949 [Nov. 1, 1948], No. 19731/52. Divided out of 705,474 and Addition to 657,591. Drawings to Specification. Class 40 (6). In a store of the type described in the parent Specification in which areas on a C.R.T. screen assume one or other of two charge conditions, a first kind of pulse is continuously applied to a modulator circuit to set up one charge condition and a second kind of pulse is fed to the modulator circuit when the output from a plate associated with the screen indicates the presence of the second type of charge to regenerate this charge. The circuit is arranged so that the second kind of. pulse is longer than the first and the leading edge occurs before the end of the pulse of the first kind. The subject-matter of this Specification is identical with part of that described in Specification 705,474. Specifications 645,691 and 682,156 are referred to.
Patent GB-401622-A (GB)
Title: Egg opener
IPC: A47G19/28
Filed: 1933-07-14
Abstract: 401,622. Opening eggs. DAY, H., 19, Mansell Road, Acton Vale, London. July 14, 1933, No. 19893. [Class 28 (ii).] An egg - opener comprises two cutters b pivoted at d' in a housing in two halves a and formed with a handle portion, and is characterized by the provision of lugs b<5>, on the cutters immediately behind the cutting-edges b<1>, operable by the pressure of the thumb and finger of the hand grasping the handle. Downward pressure is also exerted on the lugs to prevent the cutters from slipping on the egg shell. The cutters are normally retained open by a spring c housed in recesses b<3> in the shanks of the cutters. The parts a, which are preferably of synthetic resin, are secured together by rivets d and are spaced by lugs a<1> which also serve to limit the outward movement of the blades b.