baber/WOPTO huggingface dataset:
Patent GB-1535895-A (GB)
Title: Pneumatic turbo drill
IPC: A61C1/05
Filed: 1978-02-10
Abstract: 1535895 Dental drills H MAKRIS 10 Feb 1978 [11 Feb 1977] 05909/77 Heading A5R A turbine-driven dental drill comprises a handpiece having a main duct 5 for supplying air under pressure to the turbine, a secondary duct 7, an opening 9 venting the interior of the secondary duct to the atmosphere and closable by covering with the operator's finger tip, and means connecting the main and secondary ducts such that closure of the opening 9 causes an increase of air flow through the main duct, for controlling the turbine speed. The main duct includes a pressureresponsive valve (15), Fig. 3 (not shown), which is closed when the hole 9 is open but which opens in response to increasing pressure in the secondary duct 7 when the hole 9 is closed. The device also includes a main duct 6 for the supply of cooling water to the drill head, and a corresponding secondary duct 8, opening 9 and pressure-responsive valve (18) for controlling the flow of water.
Patent GB-622026-A (GB)
Title: Improvements in or relating to nursing chairs
IPC: A47D5/00
Filed: 1947-03-03
Abstract: 622,026. Furniture combinations. YORK, W. March 3, 1947, No. 6056. [Class 52 (iii)] A nursery chair comprises a lower box-like structure 1 the lid 2 of which comprises a seat and a hollow back 3 to serve as a child's wardrobe having clothes hangers. The structure 1 has at one or each side an opening for a drawer 6 to contain toilet articles and an upper shallow receptacle 5 for various articles. The closure 4 of the back 3 is slidable laterally and preferably a rear compartment 8 with door 9 is provided for toys &c. A transverse rod 10 to serve as a towel rail or as a handle for moving the chair is preferably provided while a bracket for supporting a tray may be hinged to the side of the wardrobe. Where two drawers are provided one drawer may contain a child's commode which may be positioned in an apertured seat removably provided on the drawer the sides of which may be extended upwardly to provide arm rests for the child. Castors 12 arranged at the front of the structure 1 may be provided.
Patent GB-1151387-A (GB)
Title: Temperature Responsive Actuator
IPC: F03G7/06
Filed: 1968-02-07
Abstract: 1,151,387. Vehicle heaters. UNITED-CARR Inc. 7 Feb., 1968 [1 March, 1967], No. 6118/68. Heading F4V. [Also in Division G1] An automobile heater system is provided with a hot air inlet conduit 58, a cold air inlet conduit 60 and an outlet conduit 62, the relative proportions of hot and cold air fed to the outlet being controlled by a pivoted baffle 56 operated by a temperature-responsive actuator 1 of the type comprising a sealed housing filled with wax in which is embedded an electrical heating element so that energization of the heater causes the wax to expand and move a piston-rod 36 to pivot the baffle 56 towards the cold air conduit 60 against the action of a spring 50. A bimetallic contact (not shown) is disposed in the hot air conduit 58 and when the temperature falls below a certain value this contact is operated to pass current to the heater of the actuator 1. This action pivots the baffle so as to allow less cold air to reach the outlet 62. A limit switch 66 is provided to prevent damage to the mechanism by cutting off the supply to the heater in the actuator 1 when the expansion of the wax therein is such as to cause the baffle 56 to completely close off the cold air conduit 60.
Patent GB-196761-A (GB)
Title: Improvements in or relating to footboards for motor cycles
IPC: B62J25/00
Filed: 1922-03-02
Abstract: 196,761. Coram, W. G. March 2, 1922. Foot rests.-The footboard A of a motor-cycle is provided near the rear end with an upwardlyprojecting foot-rest, such as B, so that the position and angle of the foot can be varied to reduce fatigue &c. The foot-rest B consists of a detachable rubber block mounted between ears A<3> by means of rods C and further supported upon an upwardly-projecting boss A<4> cast with the footboard A. The lugs A<3> may be formed by brackets adjustable along the footboard to vary the position of the rest B. The footboard may be formed of aluminium, with strengthening ribs on its underside, and with lugs D and jaws F for clamping it to transverse tubes on the cycle. Specification 20672/13 is referred to.
Patent GB-413654-A (GB)
Title: Electric condensers
IPC: H01G2/08
Filed: 1932-11-15
Abstract: 413,654. Condensers. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.- (Allmanna Svenska Elektriska Aktiebolaget; Vasteras, Sweden.) Nov. 15, 1932, No. 6207/34. Divided on 409,425, under which a Specification was laid open to inspection under Sect. 91 of the Acts, May 20, 1933. [Class 38 (ii).] A rigid vessel 9 is divided into two compartments by a yieldable wall 10. One compartment encloses condenser elements 7 entirely immersed in an insulating liquid. The other compartment is filled with fluid under pressure connected by piping 16 with a pump or the like. The wall 10 constitutes the only closing means for the compartment housing the condenser elements. Cooling fluid can pass through coils 8.
Patent GB-557228-A (GB)
Title: Improvements in apparatus for shelling or dehulling of grain
IPC: B02B3/08
Filed: 1942-05-08
Abstract: 557,228. Hulling grain. RYLE, T. May 8, 1942, No. 6251. Convention date, July 11, 1941. [Class 58] Grain is carried by a stream of air through a chamber B provided with circumferential rows of fixed radially-projecting rods M arranged alternately with circumferential rows of radially-projecting rods K on a rotating shaft D. As shown, the chamber B is connected to the inlet of a fan casing C, the shaft D being an extension of the fan shaft. The rods K are screwed into collars L on the shaft D, and the rods M into the casing B, and fixed by locknuts in adjusted positions. The rods K, M may be of circular cross-section or the rods K may have plane surfaces normal to the direction of rotation. Grain is fed into the stream of air drawn into the inlet H and the kernels, hulls and dust are discharged continuously from the fan outlet G, which may be connected to a cyclone or other separator. The fan may be a separate unit, connected by a duct to the chamber B, and the shaft D driven by separate means.
Patent GB-222039-A (GB)
Title: Improvements in machines or apparatus for crushing or reducing minerals and other materials
IPC: B02C1/08
Filed: 1924-03-11
Abstract: 222,039. Stockman, H. A. March 11, 1924. Crushers with vibrating jaws. - Relates to a jaw-crusher for reducing ores, rock, stone, bone, grain, &c. of the type in which a crushing-jaw oscillated by an eccentric at one end is supported at its other end in proximity to a rotatable roller by means capable of yielding when some very hard object comes between the jaw and the roller. The jaw is supported by a toggle system the elements of which are normally maintained substantially in line by a spring. A roller or cylinder is arranged between the roller and the inside of the machine frame to prevent backward rotation of the roller. The roller 5 may comprise an outer hollow cylindrical shell 6 of steel &c. and a centrepiece 7 with radial arms 8 at each end, the space between the shell 6 and piece 7 being filled with cement, concrete, &c. The swing- jaw 12 suspended from the eccentric shaft 13 is fitted with a renewable wearing-plate 15 secured by a bar 16 bolted to the bottom of the jaw. The toggle 26 bears at one end against a wearing- block 27 on the jaw 12, and at the other end against a piece 30 having a rounded rib 31 engaging in a curved recess 32 in a piece 28 adjustable by means of a wedge 29. The piece 30 has a rounded upward extension 34 which engages a recess in a plate 35 fitting into the lower end of a helical spring 36, the upper end of which is fitted with a plate 38 engaged by an adjusting- screw 39. The recess 37 in the piece 30 for the edge of the toggle 26 is at a slightly higher level than the recess 32. A buffer arrangement consisting of two rods 47 passing through the back end of the frame 1 and working against rubber blocks 48 is placed below the toggle-plate 26 and at the sides thereof. At the front ends, the rods 47 are attached to a bent plate 49 fitting a groove 50 in the bottom of the jaw 12 and retained therein by the bar 16. A loose piece of pipe or a solid roller or cylinder 51 between the roller 5 and the end of the frame 1 and above the axis of the roller prevents the roller from moving backwards.
Patent GB-124835-A (GB)
Title: Improvements in or relating to Aircraft.
IPC: F41A19/05
Filed: 1916-05-02
Abstract: 124,835. Vickers, Ltd., Challenger, G. H., and Savage, H. A. May 2, 1916. Fire between aircraft propeller blades, controlling and synchronizing. - Relates to controlling apparatus of the kind described in Specification 124,486, and consists in so constructing and arranging it that the trigger, sear, or other member acted upon by the apparatus is automatically held in the disengaging position when the gun is directed outside the periphery of the propeller blades, the gun then firing continuously. In the form shown, this is done by making a cam B with one or more spherical parts B<2> equal in diameter to the operative projection b.
Patent GB-123640-A (GB)
Title: Improved Apparatus for Lifting and Lowering Bales, Packages and Goods generally.
Inventor: HUNTLEY GEORGE
IPC: B66D1/20
Filed: 1918-04-15
Abstract: 123,640. Huntley, G., and Wilson, E. O. April 15, 1918. Pedal-crank driven-mechanism for apparatus other than vehicles. - Relates to pedal-operated lifting and lowering mechanism for loading and unloading ships and for other purposes. A frame A carries the operators' seats D and pedal (Iriving-gear B connected by sprocket &c. gearing g, G to the shaft F on which the winding-drum H is mounted. The drums may be fixed to the shaft or, as shown, may be connected to it by a epring- pressed friction clutch H' controlled by a bellcrank lever h<2>, flexible connexion h<4>, and handlever h<5>. The clutch may be used as a brake; or a U-shaped rim brake K connected by a flexible connexion h<1> to a second hand-lever h<5> may be used. The appliance may be adapted for one, two, or more operators, and be provided with running wheels for portability.
Patent GB-313144-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D53/06
Filed: 1929-02-26
Abstract: 313,144. Aerocar Corporation, (Assignees of Curtiss, G. H.). June 8, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Bodies.-Vehicle bodies are formed of two or more longitudinally extending frame members united to provide at each side a longitudinally extending truss which trusses are connected by transverse members, the wheels and axles being connected directly to said bodies. As shown, applied to a trailer vehicle the frame members 10 at each side are united by members 11 and cross braces 12 to form side trusses and the trusses are connected transversely by members 19 to form a support for the floor by cross wire braces and by a roof the whole forming a box girder frame. Door and window frame members 13, 21 are provided and the vehicle is articulated to a tow vehicle by means of a king pin 16 carried by a member 18 connected to the members 10 by chord members 15 and the roof truss. The wheels 22 and axles are carried by springs 23 shackled to the members 10 and wheel guards 25 or other suitable wheel housings are provided. Fig. 6 shows a vehicle formed of welded tubes 28. The covering 20 may be of any suitable light material or fabric.
Patent GB-566579-A (GB)
Title: Improvements in processing of lead
IPC: C22C11/02
Filed: 1943-04-20
Abstract: 566,579. Alloys. OKONITE-CALLENDER CABLE CO., Inc. April 20, 1943, No. 6340. Convention date, April 14, 1942. [Class 82 (i)] A method of treating lead to improve its hardness and strength consists in adding to molten commercial lead 0.005-0.05 per cent of sodium, removing the reaction products and thereafter adding to the molten lead 0.01-0.1 per cent of copper in the form of cuprous chloride. The cuprous chloride is added while the molten lead is below red heat. In order to improve hardness and strength and also to reduce " creep," an alloy of lead and silver, containing 2.5 per cent silver, is added to the molten lead after it has been treated with the sodium and the reaction products removed, the quantity of alloy added being such that the final product contains about 0.005 per cent silver. If bismuth is present in the commercial lead treated, the process results in material reduction of the bismuth content. Specification 501,221 is referred to.
Patent GB-541643-A (GB)
Title: Improvements in lasting footwear
IPC: A43D21/02
Filed: 1941-05-19
Abstract: 541,643. Lasting shoes. CLARK, D. M. (General Research Inc.). May 19, 1941, No. 6429. [Class 17 (i)] In lasting an upper, the point of application of the stretching pull is caused to progress along the upper margin maintaining a continuous pull. The margin of the upper U is gripped between a pair of rotating members 36, 37 having helical projections of opposite pitch, the members being rotated in opposite directions. The shaft 23 carrying the member 36 rotates in a fixed bearing, but the shaft 28 of the member 37 rotates in a bearing carried by a slide 26 which can be retracted by a lever 68 for work-changing. The two members are driven by an electric motor, the movable shaft being driven by pinions 30, 32, links 34, 36 maintaining the pinions in mesh when the shaft is retracted. The edge of the insole is held down during the lasting operation by a roll 61 carried by a plunger 50 provided with a roll 52 co-operating with a cam 53 connected by a cable 57 with a treadle. The plunger 50 also depresses an arm 46 fixed to a spindle 43 also carrying a wiper 44, the spindle being journalled in a slide 41 rapidly reciprocated by an eccentric. The wiper may be slotted for tack driving mechanism of ordinary construction, which may secure the lasted upper margin. Stapling mechanism may be substituted for the tacker, or a nozzle 78 may blow latex on to the margin just before it is laid on the insole by the wiper. The latex may be heated. The slide 41 may carry a slitting knife 65 to sever surplus material from the upper margin, and an additional clamping member 67 to prevent the upper creeping back before it is secured. Gauge rolls 63, 64 engage the sides of the ends of the shoe and the waist portion, respectively.
Patent GB-851168-A (GB)
Title: Improvements in multi-colour printing machines
Inventor: STAFFORD WILFRED
IPC: B41F13/14
Filed: 1958-03-03
Abstract: 851,168. Printing machines. MATHER & PLATT Ltd. March 3, 1958. No. 6689/58. Class 100(2) A multicolour printing machine in which a helical toothed crown wheel a drives several printing rollers through pinions b and the relative rotational relationship between the crown wheel a and a printing roller is varied by axial movement of the corresponding pinion b, is characterised in that the corresponding pinion is supported for rotation on a sleeve h which is mounted on a fixed hollow shaft e, the sleeve being secured by means passing through a longitudinal slot in the fixed hollow shaft e to a spindle k which is threaded at one end to engage a hand wheel i, both the spindle and the sleeve being adapted for axial but not rotative movement. The pinion b has helical teeth b<SP>1</SP> meshing with the teeth on the crown wheel a and helical teeth c meshing with the teeth on a spur gear d of printing roller mandrel p.
Patent GB-494072-A (GB)
Title: Improved bobbin holder for artificial silk spinning or winding machines
IPC: B65H54/54
Filed: 1938-03-03
Abstract: 494,072. Spinning yarns; winding bobbins. ELKINGTON, H. D. (Hungarian Rubber Goods Factory. Ltd.) March 3, 1938, No. 6745. [Class 120 (ii)] A bobbin holder for use on the spindle of a machine for spinning or winding artificial silk comprises a ribbed soft rubber sleeve which extends completely or partly into the bobbin, is arranged coaxially therewith, and has the distance between diametrically opposed parts of the sleeve most distant from the axis of the bobbin equal to the inner diameter thereof ; one or more rubber rings may be provided on the part of the holder not covered by the sleeve to assist in holding the bobbin. As shown, the sleeve 11 has longitudinal ribs 21 and is partly closed at the top and a single rubber ring 12 is disposed below the sleeve between retaining 'flanges 14, 22 on the holder. The end of the bobbin is seated against a flange 15 on the holder which has a bore 16 by which it is secured to the spinning or winding spindle by a copper screw 17. An ebonite screw 18 protects the screw 17 from corrosion and a rubber plug 19 in the bore 16 protects the spinning or winding spindle. The sleeve may be interchangeable and may be entirely closed at the top.
Patent GB-925420-A (GB)
Title: Production of zinc oxide
Inventor: WAINER EUGENE
IPC: C01G9/02
Filed: 1962-02-21
Abstract: Zinc oxide is produced by treating an oxidic zinc compound with a gaseous reducing agent in a fused bath of alkali metal halide or alkaline earth metal halide and burning the resulting zinc vapour to zinc oxide without recovering it as metallic zinc.  In an example, the product gases including the zinc vapour are fed to a nozzle surrounded by an apertured annular ring.  Air is fed to the ring to form an air curtain and the product gases issuing from the nozzle pass through the air curtain to produce a continuously burning flame. The heat of combustion of the zinc vapour may be returned to the reducing gas or to reduction furnace.ALSO:Zinc oxide is produced by treating an oxidic zinc compound by the process of the parent Specification and burning the resulting zinc vapour to zinc oxide without recovering it as metallic zinc. In an example, the product gases including the zinc vapour are fed to a nozzle surrounded by an apertured annular ring.  Air is fed to the ring to form an air curtain and the product gases issuing from the nozzle pass through the air curtain to produce a continuously burning flame.  The heat of combustion of the zinc vapour may be returned to the reducing gas or to reduction furnace.
Patent GB-224449-A (GB)
Title: Improvements in toothed gearing
IPC: F16H1/32
Filed: 1924-03-17
Abstract: 224,449. Holdener, S. March 17, 1924. Variable-speed epicyclic gearing of the type in which an eccentric planet wheel has two or more toothed faces engaging with corresponding concentric surfaces on other members. The teeth employed are of circular arc form, or the teeth of the larger of two interengaging wheels are partly formed as circular arcs and partly straight. Fig. 16 shows a rim 9a on the eccentric planet wheel 9 gearing with a rim 8 concentric with the shaft 1. The required tooth dimensions are set out along the pitch circle T of the rim 9<a> and points P, P<1> are selected equidistantly from the pitch point N as the points of intersection of the surfaces of a tooth O with the pitch circle. With centres P and P<1>, arcs R, R' are drawn with radii equal to that of the pitch circle T to cut the circle at S and S<1> respectively. The surfaces both of the tooth 0 and of the teeth X in the rim 8 engaging with the tooth 0 are struck with the points S and S' as centres. The faces above the pitch circle, however, of the teeth X may lie along the tangents W, W<1> from the points P, P<1> to a circle Q concentric with the circle T and of half its radius. A circle T<2> is drawn concentric with the rim 8 and contains the centres of the faces of all the teeth on the said rim. In the form shown in Fig. 1, a planet ring 9 loose on an eccentric 2 on the shaft 1 carries external teeth gearing with a stepped casing 4 coaxial with the shaft 1 and formed as a pulley, toothed wheel, &c. and also carries external or internal teeth gearing with a sleeve 10 loose on the shaft 1. Any of the parts 1, 4, 10 may drive, either of the others be held stationary, and the third constitute the driven member. Fig. 5 shows a three speed and reverse gear for automobiles. The planet wheel 9 loose on the eccentric 2 on the driving-shaft 1 carries four sets of teeth gearing with a drum 12' on the driven shaft 12 and with drums 10, 13, 14, which can be braked to provide two forward speeds and a reverse, a clutch (not shown) connecting the drum 12<1> and eccentric 2 for solid drive.
Patent GB-1492662-A (GB)
Title: Process and apparatus for false twisting thermoplastic synthetic yarn
IPC: D02G1/08
Filed: 1975-02-18
Abstract: 1492662 Determining false twist in yarns TOYO BOSEKI KK 18 Feb 1975 6844/75 Headings D1D and D1F The invention relates to:- (a) a process and apparatus for false-twisting a thermoplastic synthetic yarn wherein the number of false twists imparted to the yarn can be estimated with high accuracy; (b) a process and apparatus for controlling the number of false twists in response to (a). The invention is based on the discovery that twist shrinkage yielded by twisting a yarn is increased exponentially with the increase of the number of twists and, where a very high degree of twist is imparted to a yarn, the actual number of twists can be estimated from the twist shrinkage with high accuracy. The process comprises feeding a thermoplastic synthetic yarn through a feed roller, false twisting the yarn while it is being heated and, then taking-up the false twisted yarn via a delivery roller, characterised in that in a section within the twisting zone formed between the feed roller and the falsetwisting means the speed of the yarn being processed under normal operational conditions is measured and compared with the measured speed of the untwisted yarn to determine the twist shrinkage and, then, extrapolating the determined twist shrinkage into a relationship between number of twists and twist shrinkage, which has previously been determined for the yarn to be processed. The yarn speeds may be measured by applying a marker to the yarn being processed and measuring the time it takes for the marker to pass through a prescribed distance of said section. The measuring means may be (a) a condenser responsive to a marker material varying the dielectric constant of the yarn, (b) an induction coil responsive to a metal marker, (c) a photo-electric device responsive to a colouring or metal marker, (d) a Geiger counter responsive to a radioactive marker; or (e) a static voltage detector responsive to an electrostatic charge. Alternatively the yarn speeds are measured by means of a rotatable roller in contact with the yarn in said section. Control means may be provided to control the number of false twists imparted to the yarn by regulating the difference between the predetermined number of false twists and the estimated number of false twists. Thus; (a) where a false twisting spindle unit is employed the speed of the motor driving the spindle unit may be varied; (b) where a fluid jet type false-twisting unit is employed the air pressure can be varied; and (c) where a friction type false-twisting unit is employed the lap angle where the yarn is in contact with the falsetwisting means may be varied.