baber/WOPTO huggingface dataset:
Patent GB-219286-A (GB)
Title: Improvements in and relating to electric control systems
IPC: H02P7/34
Filed: 1924-06-04
Abstract: 219,286. British Thomson-Houston Co., Ltd., (Assignees of Burgeson, C. F.). July 19, 1923, [Convention date]. Systems for continuous-current motors only; regenerative braking. - Motors for operating power shovel dippers are supplied from a controllable generator having series and shunt field windings for normal or hoisting operation, and strengthened series field windings only for regenerative or lowering operation. The arrangement shown comprises two series motors 11, 12 in parallel, with each other and a generator 13 having a series field 16 and a shunt field 15 in addition to a commutating field 17 and a controllable separately excited field 14. A controller 20 has contact segments on the left hand side for hoisting and on the right hand side for lowering. the dipper 10. When the controller is on the lowering side the field windings 14, 15 are disconnected and a shunt about a portion of the winding 16 is broken by the opening of a switch 21. The machine 13 is thus caused to run as a high speed motor driving back on a synchronous motor 18 to return energy to mains 19.
Patent GB-682073-A (GB)
Title: Improvements in sporting cartridge cases
IPC: F42B7/06
Filed: 1949-05-23
Abstract: 682,073. Ammunition cartridges. PARIS. C. May 23, 1949, No. 13732/49. Class 9(i) A cartridge case 1 for a sporting gun is moulded from plastic material and formed with a shoulder 2 engaging an undershot wad 3 and defining the volume of the powder chamber. The shoulder 2 is tapered and may have a slope of 45 degrees. The case is produced by compression moulding or injection moulding and may be provided with strengthening ribs 5, Fig. 2. These ribs may extend from a boss in the base. and may lie along a paraboloid. A passageway 6 housing a detonator capsule may extend to the centre of the powder charge. Specification 436,928 is referred to.
Patent GB-804326-A (GB)
Title: Improvements relating to holders or suspension devices for magazines, books and the like
IPC: B42D17/00
Filed: 1956-05-04
Abstract: 804,326. Filing papers. BOWER, E. W., and BOWER, J. May 6, 1957 [May 4, 1956], No. 13765/56. Class 146(1) [Also in Group XXV] A device for suspending periodicals, books, &c. from a support 15, Fig. 3, comprises a shank 10 intended to lie in a fold of the book and having opposed hooks or lugs 11, 12 engaging the ends of the book spine, one end 13 of the shank extending beyond the adjacent hook and being shaped as an off-set hook to engage the support. The hook end 13 may be fitted with a rubber tip 14. In a modification, hook 11 is on a block slidable on the stem and resiliently urged towards hook 12 by a tension spring or an elastic band, to accommodate books, &c. of various sizes. In a further modification, the device carries upper hooks 18, 19, Fig. 4, and lower hooks 20, 21 to accommodate two different sizes of book.
Patent GB-719664-A (GB)
Title: Improvements in or relating to cheese package
Inventor: CHEREPOW FREDERIC HAROLD
IPC: A23C19/16
Filed: 1952-05-30
Abstract: Cheese is enclosed in a grease-resistant moisture-proof wrapper consisting of an outer base sheet and an inner continuous film of a composition comprising 3-40 per cent polyethylene of mol. wt. at least 12,000, e.g. 18,000-20,000, 25-50 per cent solid polyisobutylene of mol. wt. at least 60,000, e.g. 100,000-140,000 and 10-72 per cent petroleum wax, e.g. microcrystalline wax of m.pt. 155-160 DEG F or paraffin wax of m.pt. 130-132 DEG F.  The film and backing sheet may be applied to the cheese separately, or the film may be a coating on the backing sheet (see Group VIII).  The base sheet, which may be regenerated cellulose, rubber hydrochloride, polyvinyl alcohol, or paper impregnated with microcrystalline, or a mixture of microcrystalline and paraffin, waxes has an oxygen permeability of not more than 250 c.c./sq. m./24 hrs. at 45 DEG F and 760 mm., and a carbon dioxide permeability which is, say, greater than 270 c.c./sq. m./24 hrs. at 70 DEG F and 760 mm.  The film has a gas permeability in excess of the base sheet, and the wrapper inhibits moisture loss, is peelable from the cheese, and permits carbon dioxide generated by the cheese to escape while preventing the entry of oxygen in amount sufficient to effect surface flavour. Specifications 481,426, 481,427, [both in Group VIII], and 496,870, [Group XVII], are referred to.
Patent GB-611773-A (GB)
Title: Improvements relating to the seats of motor vehicles
IPC: B60N2/68
Filed: 1946-05-08
Abstract: 611,773. Vehicle seats. SARJEANT, F. C., (trading as SARJEANT & CO., E.). May 8, 1946, No. 13852. Addition to 592,879. [Class 52(ii)] The motor vehicle seat described in the parent Specification is modified by the provision of a pair of independently hinged back rests and of rollers, carried by brackets fixable to the floor, for the guidance of the U-shaped supporting frames of the seat. The pair of back rests a<4>, a<5> are pivoted independently to brackets a<6>, a<7> secured to the seat frame a and may be provided with slats a<8> connected to the back rest frames by springs a<9>. The U-shaped frames a<1> of the seat a are guided by rollers b<1> carried by brackets b fixed to the vehicle floor.
Patent GB-1244233-A (GB)
Title: Improvements in and relating to titanium chelates
Inventor: BROOK DAVID WHITELEY
IPC: C07F7/00
Filed: 1969-03-18
Abstract: 1,244,233. Titania dispersions. BRITISH TITAN Ltd. 26 Feb., 1970 [18 March, 1969], No. 14049/69. Headings C1A and C1N. [Also in Division C2] A stabilizing agent for a slurry containing a high proportion of a dispersed solid such as titanium dioxide, comprises a titanium chelate which is the reaction product of monoethanolamine, a titanium orthoester and at least one other chelating agent being an alkanolamine other than monoethanolamine, a #-diketone or an α-hydroxy carboxylic acid. The said other alkylating agent is suitably di- or tri-ethanolamine, mono-, di- or tri-isopropanolamine, 2 - amino - 2 - methylpropane - 1,3 - diol, acetyl acetone, or lactic acid. The chelate is preferably added in an amount of from 0À2 to 2% by weight of the slurry.
Patent GB-278625-A (GB)
Title: An improved chuck for screw making machines
IPC: B23G7/00
Filed: 1927-05-25
Abstract: 278,625. Pohl, A. May 25, 1927. Chucks. - A chuck for a screw machine comprises a driven sleeve 1, 5 provided with cam surfaces 12, Fig. 2 which engage ball, roller or disc jaws 6 carried in a cage 7. A spring 21 normally thrusts pins 18 carried by an axial member 17 along a helical guiding slot 19 thereby retaining the jaw cage, which is splined to the member 17, in the closed position. The jaw cams 12 are each provided with a recess 14 and on releasing the grip by an axial push rod acting on the member 17 the jaws are thrust into the recesses 14 by a spring pressed member 10 which also ejects the work. The ends of the jaws may be undercut to grip only the screw heads.
Patent GB-626108-A (GB)
Title: Improvement in well drilling draworks
IPC: E21B19/00
Filed: 1947-05-27
Abstract: 626,108. Well drilling. OIL WELL SUPPLY CO. May 27, 1947, No. 14114. Convention date, May 24, 1946. [Class 85] A draw-works for use in well drilling comprises a drum shaft, a line shaft, a rotary shaft, and a pair of jack shafts all mounted on a unitary framework, said jack shafts selectively driving the drum shaft at different speeds and being driven by a removable transmission positioned between them. In Fig. 1, a skid 2 carries a hoist frame 4 supporting in bearings 10, 10<SP>1</SP>, a drum shaft 8 to which low and high speed sprockets 12, 14 are connectible by pneumatic clutches 20, 22 : a jaw clutch 24 may connect shaft 8 to a hydraulic brake 26. Sprockets 12, 14 are driven respectively from sprockets 38, 66, carried by aligned jack shafts 30, 32, jack shaft 32 being connectible through pneumatic clutch 48 to a sprocket 50 adapted to drive the rotary table through gearing 52, 54, 62, 64. An enclosed transmission unit 72, comprising a three-speed and a reverse drive, is connectible to the jack-shafts through couplings 42, 70, and is removable, without exposing gears &c. of the draw-works, to reduce the width of the latter for transport. Fixed to the low speed sprocket 12 is a sprocket 28 driving a line shaft 90 carrying a cathead 98 driven through clutch 120, and sand reel 96 driven through clutch 122, and a cathead 100. The transmission unit 72 may be replaced by a shaft connecting jack shafts 30, 32 and driven through chain gearing and jaw clutches from steam or electric prime movers. The pneumatic clutches comprise inner and outer flanges 106, 108, Fig. 5, one of which carries a pneumatic member 110 adapted to press shoes 112 against the other flange ; if the air supply fails, the webs of the flanges are connected by a pin 114.
Patent GB-840174-A (GB)
Title: Improvements in or relating to wide-band antennae for supersonic aircraft
IPC: H01Q1/28
Filed: 1957-05-03
Abstract: 840,174. Aerials. LABORATOIRES R. DERVEAUX. May 3, 1957 [May 12, 1956], No. 14196/57. Class 40 (7). An aircraft aerial consists of a two-part conductive envelope the upper part 1 of which is separated from the lower 2 by means of a plate 3 of insulating material. In order to secure the parts together bars 4 of reinforced laminated plastic are arranged inside the envelope and each of the parts is attached to these bars by means of rivets 11 (see also Fig. 7, which is a section of Fig. 4 at VII-VII). The bottom part 2 is formed with a flange 8 provided with a plurality of holes 9 for mounting screws or rivets. Also in the base of the part 2 is a coaxial connector 15 associated with a coaxial line consisting of an outer tube 18 extending as far as the plate 3 and an inner core 5 which is extended into the part 1 and whose end is terminated by being soldered to a conductive bridge 16. The ends of the bridge are attached to the upper part 1 of the envelope by rivets 17 (see also Fig. 5). The core 5 is centred by insulators 19 and 20. The height of each of the two parts of the envelope is #/8 and the tube 18 may be made integral with the lower part as shown.
Patent GB-1356733-A (GB)
Title: Asbestos yarn reinforced with continuous strand of polyvinyl alcohol
IPC: D02G3/20
Filed: 1972-03-27
Abstract: 1356733 Spinning yarns JOHNS-MANVILLE CORP 27 March 1972 [29 March 1971] 14203/72 Headings D1F and D1W Asbestos yarn is composed of a combination including staple asbestos fibres and spun yarn of staple polyvinyl alcohol fibres. The latter may constitute a reinforcing core strand for intertwined asbestos fibres overlying thereabout and interlocked therewith by twist The asbestos fibres may be blended with up to 25% by weight of staple, organic e.g. rayon, cotton, polyamide or polyester, fibres. In a process of manufacture, carded webs or ribbons of the asbestos fibres or fibre blend are combined with reinforcement strands and both are subjected to the rolling, rubbing and falsetwisting action of successive rubbing aprons to produce "rovings" which are directly twisted into yarns.
Patent GB-1188603-A (GB)
Title: Shunt Transistor Voltage or Current Regulating System for Saturable Core Reactors and Magnetic Amplifiers
Inventor: HASE ALFRED MAX
IPC: C23C14/30
Filed: 1968-03-25
Abstract: 1,188,603. Automatic control of voltage and current. AM. HASE. March 25, 1968, No.14227/68. Heading G3R. A regulated power supply comprises an A.C. source 10 which is connected over a transductor 12 to a rectifier 14 providing a D.C. output for connection to a load, e.g. a battery to be charged, the control winding 20 of the transductor being connected in parallel with a transistor 22 and the parallel combination being connected in series with a resistor 18 across the said D.C. output; variations in the output voltage are detected by a sensing circuit including a voltage divider 16 and a Zener diode 26 connected to the base of transistor 22, the arrangement being such that the current in the winding 20, and thus the operation of the transductor 12, is automatically controlled so as to correct for the detected variations. The sensing circuit may include an amplifier, a bridge sensing network and a differential error detector, such modifications being described with reference to Figs.2 to 6 (not shown). The control current may be derived from an auxiliary supply source Fig.7 (not shown), and the shunt transistor 22 may be replaced by a uni-junction transistor or thyristor with suitable modification of the control circuit. The sensing circuit may be arranged to detect a current-dependant voltage whereby current, rather than voltage, is maintained constant.
Patent GB-109329-A (GB)
Title: Improvements in or relating to Refrigerating Apparatus.
Inventor: KILBURN BERTRAM EDWARD DUNBAR
IPC: F25B1/06
Filed: 1916-10-06
Abstract: 109,329. Kilburn, B. E. D., (Sulzer frÞres, Soc. Anon.). Oct. 6, 1916. Ejector condensers.-In a refrigerating-apparatus an ejector b supplied with inducing liquid from a pump a withdraws gas or vapour from an evaporator e and liquefies it, the mixed liquids passing to a chamber d' at the top of the cooler. The refrigerant flows back to the evaporator by a pipe f and the inducing-liquid passes through the cooler to the pump. One form of ejector is shown in Fig. 2, the liquid passing through the jet nozzle h, inducing a flow of refrigerant into the chamber k. The refrigerant liquid may be used as the inducing liquid for the ejector, and the pump may be located within the cooler.
Patent GB-130822-A (GB)
Title: Improvements in or relating to Boxes.
IPC: B65D5/32
Filed: 1918-09-06
Abstract: 130,822. Thompson & Norris Manufacturing Co., and Howard, E. C. Sept. 6, 1918. Folding boxes; tampering with, preventing and detecting; strengthening by corrugating.-A collapsible box made of corrugated cardboard comprises a tubular body portion A, B, C, D, Fig. 1, provided with flaps A<1>, A<2>, B<1>, B<2> adapted to be turned over the open ends of the box body. The box is completed by a corrugated cardboard strip E, Fig. 3, which engages beneath the flaps A<2>, B<2>, and has extensions E<4>, E<5>, which are folded over the flaps A<1>, B<1>, the meeting edges of the flaps A<1>, B<1> being secured together by one or more adhesive strips, which are secured also to the body portion of the box. The portion forming the sides C. D of the box has horizontal corrugations, the corrugations in the other parts of the box being vertical.
Patent GB-120593-A (GB)
Title: Improvements in Magnet Coil Windings, specially applicable to Field Coil Windings for Dynamo Electric Machines, Transformers and the like.
IPC: H02K3/18
Filed: 1917-10-08
Abstract: 120,593. Lancashire Dynamo & Motor Co., and Whitmore, H. B. Oct. 8, 1917. Coils.-Relates to coil windings for the magnets of dynamo-electric machines of the type in which the coil is made from a number of stampings of flat sheet metal or the like which are fitted together to form a coil, and consists in so forming the stampings as to facilitate ventilation and cooling of the coil. For this purpose, the stampings may be formed with the outer contour eccentric with respect to the inner contour, as shown in Figs. 1 and 2<a>, so that when the stampings are assembled with their ends overlapping as indicated by the dotted lines, successive stampings will project at different portions of the circumference of the coil and produce projecting flanges giving increased cooling surface. Alternatively, slots may be formed in the body of the stamping as shown in Fig. 5, or notches may be formed on the inner contour, as shown in Fig. 4, so as to form ventilating passages through the substance of the coil, or between the coil and the core. Each stamping may completely surround the core, as in the forms shown, or each turn may be built up of two or four pieces, metal being thus saved in the stamping. A method is described of forming the stampings with lugs to provide terminals.
Patent GB-170886-A (GB)
Title: Improvements in pile fabrics weaving looms
IPC: D03D39/24
Filed: 1920-05-28
Abstract: 170,886. Veluard, A. May 28, 1920. Pile-fabric looms.-The weft floats of the fabric being woven are cut by devices each of which comprises a hardened steel vertical fixed member or plate 2 and a movable member 1 loosely pivoted at 3 on the member 2 and caused by projections 12, 13 to be inclined to the member 2. The projection 13 is formed on a spring tongue 14, whereby the cutting-edges 47 of the members 1, 2 are kept in contact. A tongue 8 on the part 2 is so bent that a perforation 9 therein, to which the pile-wire 10 is connected, lies in the plane of the cutting-edge 4. The members 2 have hooked parts 6 with reinforcing- plates 6a fitting side by side in an L-shaped groove in a bar 19, and they are kept in position by a cover-plate 20, the tongues resting on a beam 15. The members 1 have projecting heads 5 engaging in a longitudinal groove in a bar 18, which is rocked about end brackets and an intermediate support by lever mechanism 25, 30 operated from the lay &c. whereby the members 1 are rocked and cut the weft-pile threads advance along the wires 10 and parts 8. The wires 10 pass through a heald.
Patent GB-496223-A (GB)
Title: Improvements in or relating to distributors for pneumatically transported finely divided solid material
IPC: F23K3/00
Filed: 1937-05-26
Abstract: 496,223. Pneumatic conveyers; mixing- apparatus. BABCOCK & WILCOX, Ltd. May 26, 1937, No. 14631. Convention date, June 1, 1936. [Class 78 (i)] [Also in Group II] A distributer for mixing the coal-air streams from a plurality of pulverizers, and transmitting a flow of uniform coal-air ratio to all the burners of a furnace, comprises a frustoconical shell 15 within which is fixed a coaxial frusto-conical baffle 18. The inlet pipes 13 from the pulverizers are disposed symmetrically around the top of the annulus between the cones 15 and 18, and the delivery pipes 21 to the burners symmetrically at the top of the inside of the baffle. The cone 18 has a steeper angle than the cone 15, and the downward moving streams are deflected by. a curved impingement plate 20 up into the pipes 21. Valves 22 allow of manual control of the flow through each pipe 21. In a variation of this form the baffle 18 is adjustable vertically by a hand-operated screw to alter the gap above the plate 20. Fig. 3 shows a modification in which the inlet streams first mix in a cone 25 and then proceed downward into a conical baffle 30 to be deflected at 31 into the annulus between the baffle and an outer frusto-conical shell 29 to reach the delivery tubes 21. In Fig. 5, the baffle 39 is of streamlined form, and a damper 44 is located beneath it to regulate the effective flow and keep the bottom of the casing 33 free of deposited coal. Slidable disc valves 41, 42 cover the inlet pipes 40 and the outlet pipes 42.
Patent GB-1248633-A (GB)
Title: Improvements in tow trucks for sub floor tow conveyors
Inventor: KLAMP PAUL
IPC: B61B10/04
Filed: 1969-03-20
Abstract: 1,248,633. Tow trucks (vehicle bumpers). P. KLAMP. 20 March, 1969 [21 March, 1968], No. 14659/69. Headings B7J and B7L. A tow truck having vertically movable front and rear bumpers 34, 113 is driven by means of a tow pin 27 engaged by chain driven underfloor pusher dog 60, and the front bumper 34 is rearwardly movable when in its lower position so as to lift the tow pin 27 from engagement with the pusher 60 and to lower the rear bumper 113. The front bumper is mounted on two tubes 35 interconnected by a cross brace 50, guided by front and rear rollers 40, 36, and supported at the front by rollers 42 mounted on bell cranks 43 and urged upwardly by springs 47. The tubes 35 are urged forwardly by a tension spring 51, this forward movement being limited by a roller 54 which abuts the cross brace 50. Rearward movement of the tubes is prevented by stop bars 58 which, when the front bumper is in its upper position, abut a stop plate 57 secured to the truck frame. The front bumper 34 also supports two rotable cams 63 which on rearward movement of the front bumper 134 ride up on rollers 67 and lift the tow pin 27 by engaging a collar 33 thereon. Each tube 35 supports a brake cam 71 which on rearward movement of the tubes engages a roller 76 to rotate a bell crank 75 keyed on to a cam shaft 72, and thus brakes a rear wheel 19 of the truck by way of a brake lever 70 and a connecting rod 79. The cam shaft 72 also supports a latch lever 85 which on rotation of the shaft 72 engages a pawl lever 87 to lock the shaft 72 and hence the rear wheel brakes. A connecting rod 110 connects the pawl 87 to an angle 107 bolted to a strap 93 through which the tow pin 27 projects with clearance. Two springs 109 are connected between the angle 107 and an angle 108 secured to a strap 101 which is interconnected between a shock absorber 98 secured to the strap 93, and an arm 103 mounted on a rotable tube 118. Thus when the tow pin 27 is engaged by a pusher 60 the strap 93 is moved forward against the action of the springs 109 and the connecting rod 110 rotates the pawl 87 to release the latch 85 and hence the rear wheel brakes. The rear bumper 113 is mounted on two tubes 114 hinged at 116 to two arms 117 welded to the tube 118 and held against stops 122 by the springs 109. The tubes 114 are guided by rollers 123, 124 and are supported on rollers 126 mounted on bell cranks 127 urged by springs 130 to lift the tubes 114. The bell cranks 127 are connected to the bell cranks 75 by interconnecting rods 133, and thus the rear bumper 113 is lowered on rotation of the crank 75 by rearward movement of the front bumper 34. The bottom 138 of the tow pin 27 is a truncated cone so as to prevent accidental lifting of the tow pin 27 on inclines.
Patent GB-311416-A (GB)
Title: Improvements in junctions for cables
IPC: H02G15/14
Filed: 1929-05-10
Abstract: 311,416. Felten & Guilleaume Carlswerk Akt.-Ges. May 11, 1928, [Convention date]. Cable joints.-A joint or coil casing for cables armoured with shaped wires is sheathed with similar-shaped wires. The wires of the cable armouring K are cut away to form a flange K<1>, Fig. 1, with which corresponding teeth formed on the wires a that enclose the joint &c. V, engage, The shaped wires a are held in place by interposed circular wires b, Figs. 3 and 7, that are introduced as the sheathing is built up round the joint &c. The last wires are either dispensed with and the spaces bo, Fig. 3, filled with cast metal introduced through holes 0, or are introduced between suitably-shaped sectors at a<1>, a<2> of one of the wires a, the adjacent wires being undercut if necessary. A wrapping B of metal strip or wire may be employed instead of or in addition to the other means for retaining the wires a in position. The Pupin-coil casing V, Fig. 8, is connected by conical divided members E to the cable K, the parts being grooved to interlock with the flanges formed on the armouring and connected together by screws S. The metal used to fill the spaces bo has a melting- point below 120‹ C., and may be " roses " alloy composed of one part of lead, one part of tin and two parts of bismuth.
Patent GB-128081-A (GB)
Title: A New Arrangement and Construction of Internal Combustion Engine, applicable to Engines of the Four-stroke Cycle.
Inventor: KNIGHT JOSEPH
IPC: F01L5/06
Filed: 1918-09-11
Abstract: 128,081. Knight, J. Sept. 11, 1918. Valves; valvegear. - The engine unit consists of two cylinders 1, 2 having a common combustion chamber, and suctionoperated inlet valves 14, the exhaust of both cylinders being controlled by one .sleeve valve 3 in the cylinder 2. The pistons of each pair of cylinders are connected to one crank. Terminal exhaust ports may be formed in the cylinder 1 only, or in both cylinders. The sleeve valve 3 has one port 16 always open to the inlet passage 15, and another port 28 controlling the exhaust through a port 27<a>. Two oppositely-moving pistons may be employed in each cylinder; in this case, the additional pistons are yoked together and connected to a central, crank between the two cylinders, the ordinary pistons being connected to the outer cranks each 180 degrees from the central crank. A V-type engine may be formed, the unit consisting of two of the above units arranged at an angle to each other, the sleeve valves being operated from a shaft situated between the cylinder pairs.