baber/WOPTO huggingface dataset:
Patent GB-571411-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B9/20
Filed: 1944-02-02
Abstract: 571,411. Vehicle wheels. BENNETT, G. A. Feb. 2, 1944, No. 1943. [Class 144 (i)] Pneumatic wheels.-A small wheel, particularly for trucks, barrows, perambulators, stretchers, and wheeled furniture, consists of a hollow rubber &c. body 21 gripped between the facing heads of a pair of axially-alined stub axles. In the form shown in Fig. 1, the axles 13 are threaded through bushes 11 supporting ballbearings 16 fitted in an attachment-bracket 10. The outer ends of the axles have slots 18 by means of which adjustable pressure of the heads 20 at the inner ends may be exerted on the sidewalls of the wheel-body 21. The latter is shown formed with ribs 22 to prevent vertical displacement of the wheel-body and the heads 20. The latter may be provided with protruberances adapted to bed into the material of the wheel-body to prevent vertical and circumferential displacements. In the form shown in Fig. 5, the bearings for the axle 11 are mounted in arms 61, 62 which are pivoted on a baseplate 60 and rocked, to set up the desired compression in the wheel-body 21 of a turnbuckledevice 65.
Patent GB-414583-A (GB)
Title: Improvements relating to tables
IPC: B63H1/12
Filed: 1934-01-19
Abstract: 414,583. Tables. WALDSCHOCK, O., 12, Bahnhofstrasse, Golssen, Nieder Lausitz, Germany. Jan. 19, 1934, No. 1971. Convention date, Jan. 10, 1933. [Class 52 (iii).] A table or other article with folding legs is provided with a handle parallel to the top, and gearing connected to it to effect the erection or the folding of the legs. The table shown comprises a top with a frame c<2> to which are pivoted two pairs of legs d, each pair being connected to or integral with a bar k. Attached to the frame are uprights a supporting a rotatable handle b, to one end of which is secured a cord e led over pulleys r, r<1> and the parts k so that when the handle is rotated the legs are moved from the horizontal to the vertical or vice versa. Springs n may be fitted to assist the movements to the final positions. In modifications, the parts k are parallel to the long sides of the table ; the mechanism comprises bevel gearing ; additional shelves may be fitted above the table top, and these may be rocked by the handle b.
Patent GB-1074664-A (GB)
Title: Carbon black process
Inventor: THORNHILL FRED S
IPC: C08K3/04
Filed: 1966-01-14
Abstract: A process for the manufacture of carbon black having improved ageing properties and resistant to burning during manufacture comprises the steps of introducing a fluid hydrocarbon into a hot reaction zone for thermal decomposition to form carbon black and a gaseous effluent, quenching the hot mixture with water, separating the carbon black from the gaseous effluent and pelletizing the carbon black, and a characterizing step of introducing into the process an inorganic, water-soluble, non-volatile phosphorus compound, e.g. H3PO4, NH4H2PO4 in an amount sufficient to provide in the carbon black an equivalent amount of elemental phosphorus equal to at least 0.1% by weight of carbon black.  The process includes a treatment of the black under oxidizing conditions, e.g. heating with HNO3, O3, O2, NO2 etc. to form an oxidized carbon black product. The phosphorus compound may be introduced into the reaction zone portion of the process or in the quenching or pelletizing water or bath.
Patent GB-699281-A (GB)
Title: Improvements in and relating to regulators for dynamo-electric machines
IPC: H02P9/10
Filed: 1952-01-24
Abstract: 699,281. Automatic voltage control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1952 [Feb. 1, 1951], No. 1986/52. Class 38 (iv). In an automatic control system for a synchronous alternator, reduction of field excitation below a predetermined value is prevented by a circuit, responsive to increase of K.V.A.R. above a predetermined value, which includes opposed bridge rectifiers, the output of which is applied through a half-wave rectifier and a saturable reactor to control the field. To maintain constant the voltage of a three-phase alternator despite variations of speed, load and power factor, a three-phase to twophase transformer 14 connected to the alternator terminals supplies a bridge rectifier 30 through a non-linear impedance 26, e.g. a saturable reactor, and supplies another bridge rectifier 32 through a linear impedance 29, e.g. a resistor. When the alternator voltage has the value desired, the rectifier outputs are equal, but voltage deviation results in a difference to energize a control field winding 11 of an amplidyne generator 8 in the appropriate sense to correct alternator voltage by bucking or boosting the supply to the shunt field winding 7 of exciter 5. The non-linear impedance circuit includes a resistor 19 and an inductance 20 to be responsive only to one phase sequence. The voltage regulator is compensated against frequency variations by a capacitor 23 and an inductance 24 in parallel and resonant at normal frequency. Sensitivity of the voltage regulator is adjustable by a resistor 28. If, for example, due to a disturbance on a system to which the alternator is connected, the voltage regulator attempts to maintain voltage by reducing the excitation below a value at which the alternator might get out of synchronism with the rest of the system, this condition is prevented by a circuit 12 responsive to rise of K.V.A.R. supplied by the alternator. Circuit 12 includes a potential transformer 40 and a current transformer 48, the outputs of which control the supply to two bridge rectifiers 50 and 51, the difference voltage of which constitutes the output of circuit 12. This output is normally zero but above a predetermined value of K.V.A.R. which is determined by the setting of a tap E and a resistor 46 and varies inversely with alternator load, a D.C. output is produced proportional to the K.V.A.R. rise above the predetermined value. This D.C. output is applied to the control winding 59 of a saturable reactor 58 which is included in the circuit of rectifier 30 so that alternator excitation is increased and loss of synchronism avoided. A rectifier 60 prevents reversal of current in winding 59. Negative feed-back from an anti-hunt transformer 36 responsive to changes of exciter voltage is applied through winding 39 to the field circuit of amplidyne 8 and through winding 38 to the control circuit of saturable reactor 58. An inductance 47 is set to compensate a particular load impedance. Specification 669,520 is referred to.
Patent GB-584834-A (GB)
Title: Improvements in and connected with electric switches having oil-immersed contacts
IPC: H01H33/55
Filed: 1945-01-29
Abstract: 584,834. Oil-break switches. CRABTREE & CO., Ltd., J. A., HILL, W. E., and STOKES, B. Jan. 29, 1945, Nos. 2200 and 20642. [Class 38 (v)] The oil-tank a of a switch b having oilimmersed contacts, is detachable therefrom by swinging bolts c from an inclined position to the perpendicular, these bolts having rounded pivot formations d at their upper ends. Nuts h and washers i on the bolts c engage shoulders k on the tank a when it is in position or lugs m when the tank is lowered. The pivots d extend laterally to either side of the bolts c and the upper ends of the bolts move freely in recesses g in the casing. The lugs m are slotted to'permit the bolts c to swing.
Patent GB-536984-A (GB)
Title: Improvements relating to electrical signalling systems
IPC: H04Q1/44
Filed: 1940-02-05
Abstract: 536,984. Manual exchange systems. SIEMENS BROS. & CO., Ltd., and FOSSETT, L. Feb. 5, 1940, No. 2220. [Class 40 (iv)] In an arrangement for responding to an alternating current calling or supervisory signal, two relays LA, LB, Fig, 2, or two windings of a shunt-field relay LC, Fig. 5, are shunted by opposed rectifiers RA, RB so that they are energized respectively by alternate half-cycles and the effectiveness of the signal is dependent on the momentary simultaneous energization of both relays or both windings of the shuntfield relay. A locking circuit is then closed for maintaining a lamp L alight, the circuit being opened by the sleeve relay CO or by break contacts of the jack in the case of a calling signal or by the answering key k in the case of a supervisory signal. Instead of the responding relays or relay locking as shown, the lamp may be controlled by an additional 'self-locking relay which is connected up when the simultaneous energization occurs. Moreover the lamp may be included in the locking circuit instead of in a separate circuit.
Patent GB-1287364-A (GB)
Title: Shape grading of articles
Inventor: LEFEVRE RAYMOND LEON RENE
IPC: B07C5/04
Filed: 1970-01-16
Abstract: 1287364 Grading articles UNITED KING- DOM ATOMIC ENERGY AUTHORITY 11 Jan 1971 [16 Jan 1970] 2314/70 Heading B2H A device, for grading articles according to their roundness by testing the facility with which they roll down an inclined plane, comprises a member 1, e.g. a cylinder, having a channel 2 therein for receiving the articles to be tested and being movable, e.g. rotatable, between a position, Fig. 1, where the surfaces defining the channel retain the articles as a single row in equilibrium and a second position, Fig. 3, in which the articles roll down a side wall 3b of the channel and out of the channel, and means whereby the articles are graded according to the degree of inclination imparted to the channel through movement of the member 1 to make the articles roll out of the channel. A hopper 4 is adapted to open when the cylinder is in the Fig. 1 position to deliver a single row of articles into the channel 2. When the cylinder reaches the Fig. 3 position, the articles of greater roundness have rolled down the side wall 3b of the channel to the periphery of the cylinder and pass down a divider sheet 5 into a receptacle 7. The sheet 5 is supported on opposite edges by two arms 6 pivotably adjustable by hand to change the position of the edge 5a of the divider sheet. The less round articles fall from the channel into an adjoining receptacle 11 as the cylinder rotates from the Fig. 3 to the Fig. 4 position. More than one channel may be provided in the cylinder. The surfaces of the channel side walls may be roughened or polished according to whether it is desired to increase or reduce friction.
Patent GB-1192293-A (GB)
Title: Connecting Devices
IPC: E06B3/972
Filed: 1968-01-16
Abstract: 1,192,293. Corner joints for window door frames. ANCIEN ETAB. ED. GEISLERLIGNIAN S.A. 16 Jan., 1968 [18 Jan., 1967], No. 2375/68. Heading E1J. Hollow window or door frame sections 17, 18 are connected at an angle by an angle member 1, which may have hollow wings 2, 3 provided with slots having serrated walls 7, 8, 9 and 10 which co-operate with the threads of clamipiing screws 27, and by a fixing element or key 12 which, is shaped to enter and to close an aperture 24 in the member 18 and to interlock with the member 18 whilst it is clamped against the inside surface 'of the member 17 by a screw 25 so as to fix the joint at the nose of the mitre between the members 17, 18. The member 1 may be cut from extruded bar.
Patent GB-981415-A (GB)
Title: Thermographic reproduction on heat sensitive copy sheets
IPC: B41M5/48
Filed: 1961-01-20
Abstract: A heat-sensitive copy sheet comprises a tracing paper coated successively with a polyvinyl butyral binder dispersion of heat interreactant particles of ferric stearate and methyl gallate and an opaque surface coating of 166 parts by weight titanium dioxide, 100 parts by weight ethyl cellulose and 134 parts by weight triphenyl phosphate which becomes tacky at about 65 DEG  C. Specifications 829,001, 863,366, and 863,641 are referred to.ALSO:A temporary adhesive layer which is nontacky at room temperature and is rendered tacky by heating may be impregnated on to both sides of a paper tissue.  Reference is made to using for the temperary adhesive layer cellulose esters and ethers, vinyl polymers or natural gums or resins with other plasticizers such as dioctyl phthalate.  Specifications 829,001, 863,366 and 863,641 are referred to.
Patent GB-164069-A (GB)
Title: Improvements in or relating to magneto-starters
IPC: F02P7/00
Filed: 1920-01-26
Abstract: 164,069. Adye, J. F. Jan. 26, 1920. Magnetos, driving. - In a magneto trip-starter in which the driven member has a slot engaged by a retaining pawl which is displaced by the driving- member after a limiting rotation during which a coupling spring is stressed, the nose of the pawl and the opposite edge of the slot are rounded so that the pawl disengages itself from the slot if it has only partially entered it and the length of the slot is so selected with regard to the pawl that, when the two members rotate at or above a limiting speed, the pawl is thrown clear of the slot without engaging it. Fig. 2 shows a section through the coupled members on the line 2, 2 of Fig. 1, and Fig. 3 shows a median section of the driven member. The recessed disc-like driven member A en the magneto shaft D<1> contains the spring C which couples it to the flanged driving member B and has two peripheral slots A<4> with rounded edges preferably formed in the backs of two stops A<2> which, in normal running, engage two studs B<2> machined integrally with the member B. These slots receive a, pawl F mounted on a transverse pivot F<1> and so weighted at F<2> or spring-controlled that in the position shown in full lines it rests yieldingly against the disc A, and when thrown over to the disengaged position, shown in dotted lines. it remains in that position. It may be additionally held by the attraction of the magneto magnet D and may be pulled over to engage the slots by a spring-restored pivoted cradle G and cord G<2>. The nose of the pawl is rounded and projects beyond the slots A<4> into the path of cams B<1> on the flange of the member B. Slow movement of the shaft E in the direction of the arrow stresses the. spring prior to jerking the armature shaft round when the pawl is forced out of the slot by one of the cams B<1>. The pawl, if not thrown over by the cam to the position shown in dotted lines, is knocked over, as the speed increases, either by one of the cams or the rounded edge of one of the slots. Holes H<1>. H<2> in the flanges enable the members A, B to be locked together by means of a pin if the spring C should be broken. By reversing the spring and transferring the pawl to the other side of the shaft D<1>, the device may be adapted for rotation in the reverse direction. Specifications 151,357, 151,564, and 160,559 are referred to.
Patent GB-580252-A (GB)
Title: Improvements in or relating to calculating instruments
IPC: G06G1/04
Filed: 1944-02-10
Abstract: 580,252. Calculating. LIEBMANN, D. M., and LIEBMANN, G. Feb. 10, 1944, Nos. 2452 and 2453. [Class 106 (i)] A calculating device comprises a disc with at least one scale on either side, and two sets of flat cursors arranged on opposite sides of the disc. The two cursors of each set are mounted on a common centre at different distances from the disc so that they may be rotated and slide one over the other, and the friction between the cursors is less than the friction between the disc' and the nearer cursor. In Fig. 2, the disc 20 is made of wood, metal or plastic material. Transparent cursors 22, provided with a milled edge are connected by a bush 31 arranged in a central hole in the disc, and by peripheral distance-pieces 28, 32. A felt strip 29 on the distance-piece and washers 33 on the bush provide the desired amount of friction. Transparent cursors 23 connected to a'distance-piece 30 are mounted on a bush 24 journalled in-the bush 31 and provided with friction washers 34. In Fig. 4, the bush 24 is replaced by a flanged.stud 35 and screw 36 separable to facilitate cleaning. In a modification distance-pieces separate from the cursors are avoided by bending a strip of material to form spaced cursors adapted for arrangement on opposite sides of the disc. Opaque material provided with windows may be used. The scales are produced by drawing, engraving, embossing, printing, pressing or moulding, or by photo-sensitizing the surface of the disc, projecting an image thereon and developing and fixing the photograph.
Patent GB-122514-A (GB)
Title: Improvements in Self-acting Mules and Twiners for Spinning and Doubling Cotton and other Fibrous Materials.
IPC: D01H3/12
Filed: 1918-02-12
Abstract: 122,514. Platt Bros. & Co., and Nichols, W. Feb. 12, 1918. Mules and twiners. - An axially movable cam or cone b for controlling the winding-click c is positioned to disengage t h e click from the click wheel and hold it disengaged, by a spring. against the action of which the cone is moved, in order to allow the click to engage, during the locking-movement of the faller-locking lever, by a member normally held by the spring in the path of such lever or of a member thereon, the spring effecting the reverse movement during the unlocking-movement of the lever. In the construction shown, the spring h acts upon an adjustable sliding rod e connected by a lever a to the cone b, and operated against the spring by the faller-locking lever or boot-leg k by means of the striking face l of an adjustable bracket j, which engages a striking face i on an arm g of the sliding rod.
Patent GB-680406-A (GB)
Title: Improvements in or relating to electrical terminal blocks
IPC: H01R9/24
Filed: 1951-02-01
Abstract: 680,406. Distribution boards; two-part couplings ; sleeve couplings. KELLER, B. Feb. 1, 1951 [March 5, 1950], No. 2538/51. Class 38 (i). A terminal block comprises a resilient insulating body 1, for example of polyvinyl chloride, provided with conducting sleeves 7 in apertures 3, the sleeves having clamping screws 10 which move in the bores 6 of guides 2 to clamp or release cables 9, 11. The bores 6 are of such length and diameter that they grip the screws even when fully unscrewed. The body 1 has perforations 4 in order that it can be easily broken to size. Fig. 6 shows a plug socket with a bore 21 intersected by two sockets 14, 15 which receive plug pins 12, 13 and have clamping screws 22, 23, the heads of which fit tightly in the bore 21. The bore 21 of the body of Fig. 6 may alternatively contain a single sleeve 24, Fig. 7, the clamping screws 28, 29 being held in apertures 19, 20.
Patent GB-1185271-A (GB)
Title: Improvements relating to Rail Fastenings
Inventor: WATERS JOHN MURRAY
IPC: E01B9/30
Filed: 1968-01-18
Abstract: 1,185,271. Securing rails to sleepers. BRITISH RAILWAYS BOARD. 18 Jan., 1968, No. 2835/68. Addition to 1042991. Heading E1G. In a rail fastening comprising a forked plate spring 3, reaction hoop 4 and back support 7, wherein the rail foot 6 is laterally located in the sleeper 2 by a shoulder 9 engaging a portion 10 of an insulator 11, as in Specification 1169715, the laterally abutting surfaces are curved in plan view along the arc of a circle. At the ends of the arc the parts are shaped to diverge gradually. The insulator shown has an upstanding flange 12 and honeycomb formations 15, while the shoulder 9 is reinforced by a plate 16 of steel, nylon or glass fibre. In a modification the insulator is undercut where it engages the rail edge to promote resilience. The sleeper 2 may be of concrete reinforced - e.g. down to boundary 18 - by metallic or non-metallic fibres, or may be of concrete modified by plastics, rubber or bitumen.
Patent GB-510430-A (GB)
Title: Improvements in or relating to hair nets
IPC: A45D8/40
Filed: 1939-01-27
Abstract: 510,430. Hair-nets. BEDWELL, R. G. Jan. 27, 1939, No. 2873. Convention date, July 22, 1938. [Class 131] A hair-net comprises a length of netting 5 having elastic strips 6, 7 interwoven along the edges and lengthwise between the edges, the two ends of the netting and elastic strips being gathered and fastened into tufts 11, which may be concealed by an ornament.
Patent GB-548348-A (GB)
Title: A new or improved foldable bicycle
IPC: B62K15/00
Filed: 1941-03-04
Abstract: 548,348. Folding cycles. RALEIGH CYCLE CO., Ltd., and BUXTON S. W. March 4, 1941, No. 2905. [Class 136 (iii)] The top and bottom tubes are divided ,thedivided parts each having half-knuckles 1 which enclose hinge pins 2. Wobbling of the divided parts is resisted by reason of the facts that (q) the sleeve 9, when slid over the joint and secured in place, places the joint under tension, and tendency for joints to separate being resisted by the sleeve, and (b) the sleeve engages each of the two parts at a point near to and at a point remote from the hinge axis. When the sleeve is slid into locking position a nut 10 secured thereto can be screwed on to a threaded collar 8 secured to the upper divided part, and the right-hand end of the sleeve abuts and pushes against a flange 7a formed on a collar 7 secured to the lower divided part, thus tensioning the joint. The sleeve engages flanges 1b and the backs of the knuckles. The hinge axis x is at right angles to the bisector y of the angle between the top and bottom tubes. Stops 11 limit withdrawal of the sleeves, to prevent exposure of the collar 8, and each stop may be associated with a spring to hold the sleeve in the withdrawn position. The stop 11 on the bottom tube may serve as a brake rod guide. The draw rod for the rear brake is articulated on the axis x. The handlebar 14 may be turned down sideways from the normal position shown in Fig. 7, to the position shown in Fig. 6; it is secured in a housing 15 pivoted at 17 on a member 16a secured to a stem extension 16, and is locked in the normal position by a wing-nut 20 which screws on a stud 18 extending rearwardly from the part 15 into an openended slot 19 in the part 16a. The wing-nut has a conical nose which enters a conical recess at the inmost end of the slot 19. The brake levers 21 are hinged bv ball-and-socket connections 24 on the axis of the pivot 17.
Patent GB-574853-A (GB)
Title: Improvements relating to control means of marine engines
Filed: 1944-02-16
Abstract: 574,853. Marine engine speed-governors. DUFTY, N. E. Feb. 16, 1944, No. 2916. [Class 57] Means for preventing, racing of a ship's engines when the propeller rises out of the water comprises a kinetic coupling operating in an air chamber communicating with a port in the hull near the propeller, so that the change of air density due to pitching changes the coupling effect and so operates on an engine control. Fig. 1 shows a coupling comprising an impeller 22 driven at constant speed by an enclosed electric motor and acting through the atmosphere in the chamber on a driven vaned element 23 which is thus caused to rotate against the action of a spring 48 limiting its motion; a cam disc 36 on its shaft coacts with a roller on an electric contact to control the power output of the engine. Fig. 4 shows apparatus in which the spring is replaced by a second kinetic coupling operating in a chamber in communication with atmosphere or with air-vessels forward of the propeller, the couplings acting in opposite senses through their driven members on a link 61 to control the position of the cam disc 36A. In another form, the driven members are coaxial, being mounted oppositely on a screwed shaft which may thus be given a motion of translation to actuate an electric contact. Fig. 8 shows apparatus in which a balancing linkage 81 connects the impeller elements 22E, 22F to a hollow driving shaft 80, the driven elements being rigid with the body, which is divided into main and control air chambers. Element 22F can rotate without sliding on the shaft, and element 22E can both slide and rotate. Rotation of the linkage by variation of air density causes a rack and pinion 89, 88 to shift a rod 90 to operate the contacts. The control may be operated through a progressive relay, e.g., a telemotor.
Patent GB-1511092-A (GB)
Title: Magnetic bubble domain systems
IPC: H01F5/00
Filed: 1976-01-27
Abstract: 1511092 Magnetic bubble devices ROCKWELL INTERNATIONAL CORP 27 Jan 1976 [11 Feb 1975] 3033/76 Heading H3B A magnetic bubble device 12 is located in a magnetic (rotating) field produced parallel to and between a pair of planar magnetic cores each embraced by at least one coil.