baber/WOPTO huggingface dataset:
Patent GB-341913-A (GB)
Title: Improvements in brake mechanism
IPC: B60T13/06
Filed: 1929-10-21
Abstract: 341,913. Brakes applied by running shaft; lubricating passages. ROCKWELL, E. A., 1826, Diversey Parkway, Chicago, U.S.A. Oct. 21, 1929, No. 31890. Convention date, May 22. [Classes 12 (ii) and 103 (i).] Brake mechanism is provided with a dashpot to cushion the movement thereof, the plunger of the dashpot being associated with a part of a frictionally operated power brake unit and is movable within a chamber included in the housing of this unit. A sleeve 18 is freely mounted on the shaft 10 and carries a brake drum 27, retardation of which, by the shoes 40 operated by the foot pedal, causes axial movement of concentric sleeves 45, 46 engaging each other and the sleeve 18 by right- and left-hand threads respectively so that whatever the direction of movement of the vehicle this axial movement, the sleeve 46 being splined to the shaft 40, will move a lever 54 to apply the brakes. This lever is in the form of a yoke engaging the sleeve 46 by means of a ball bearing 48 and having a depending arm 70 engaging by means of a rounded end 71 the plunger 72 of the dashpot. The plunger has a longitudinal groove and loosely fits a sleeve 68 to allow leakage of oil past it. The plunger is controlled for each direction of movement by a valve in a passage, one of which, the low-pressure valve 82 is shown. One of these valves opens to allow a relatively full flow when the pressure in the end of the cylinder which the valve controls attains a certain magnitude. A stud 81 forms a seat for the valve and it is closed by the spring 84. A snifter valve is provided which makes up for loss of oil in the dashpot and communicates with the low-pressure valve passage and the interior of the casing 14 of the power brake device. These valve passages are contained in a detachable plate 78. A plug 67 is provided to bleed air from the dashpot. Oil-sealing means for the casing 14 comprise a retaining channel member 31 and curved packing 32 which is held in place by a spring 33. A deflector 34 prevents oil reaching the brake drum and directs it through a pump 35. The surrounding lips of ventilation openings 37 in the brake drum are so formed that oil is not blown back through the openings. A passage 16 equalizes the lubricant levels in the casing 14 and the transmission casing 13.
Patent GB-271761-A (GB)
Title: Improvements relating to the manufacture of poppet valves
Filed: 1926-12-17
Abstract: 271,761. Knudsen, W. S. Dec. 17, 1926. Valves.-Poppet valves are made by extruding part of a heated metal blank through a die. A blank, cut from a bar, is heated to 1500‹ to 1900‹ F. and inserted in a die 10 and the shank 23 is extruded by a punch 18 which is shaped to give the desired form to the head 22. The die is relieved at 14 to avoid friction. The valve is forced out of the die by steady pressure of a rod 28 actuated by compressed air. A suitable steel for making poppet valves comprises silicon 3.60 to 4.20 per cent, chromium 1.85 to 2.50, carbon 0.35 to 0.45, manganese 0.25 to 0.40 and phosphorus plus sulphur under 0.05 per cent. The die is preferably lubricated by swabbing with quenching or tempering oil with a flash point of about 700‹ F. The shank 23, Fig. 3, of the valve while still hot is clamped by members 37, 38 and punched. It is then cut to length by an inclined knife 57. Fig. 5, and anvil 58 moved in opposite directions by racks 55, 56 double pinion 50 and rack 54. An etched section of a valve Fig. 6, made bv this process, shows smooth flow lines parallel with the surface.
Patent GB-932739-A (GB)
Title: Improvements in or relating to framework assembling members and frameworks incorporating the same
IPC: E04B1/58
Filed: 1959-09-21
Abstract: 932,739. Structural joints. P. CADOVIUS. Sept. 21, 1959 [Oct. 1, 1958], No. 32113/59. Class 20 (2). [Also in Groups XIV and XXVIII] A connecting or supporting device for tubes 7 of a tubular framework comprises a spigot having a reduced part 6 between two parts 4, 5 over which a tube 7 can be engaged out of alignment with the spigot to avoid obstruction by another part of the framework, to fit eventually on the parts 4, 5. These devices at the end of a framework may be secured to a floor or a wall and the devices may be connected together by bracing wires. The base 1 of the device may carry a number of spigots. The spigot may be reduced on only two opposite sides. There may be only three or four (Fig. 3) points of contact between a tube and the outer part 5. The use of the device with tubes of different crosssection is described and the tube and device may be secured together by rivets, deformation of the tube or welding or by wedging apart the . split end 5.
Patent GB-160553-A (GB)
Title: Improvements in or relating to roller grinding mills
IPC: B02C4/32
Filed: 1919-12-22
Abstract: 160,553. Brinjes & Goodwin, Ltd., and Seaman, C. J. Dec. 22, 1919. Roller mills.-In a roller grinding-mill in which the bearings of one or more of the rollers are adapted to yield against the action of resilient means on the passage of foreign material between the roller and an adjacent or co-operating roller, one or more of the rollers are supported so that the bearings of the roller can be positively adjusted to and from a co-operating roller without affecting the tension of the resilient cushioning-means. The roller 3 may be carried in bushes 1 slidably disposed between flanges 4, 5 depending from a bracket 6 adapted to be dis. placed relatively to and guided by the frame 9 of the mill, the bushes 1 being displaceable independently of the bracket 6 against the action of the spring 16 which returns the bushes 1 and roller 3 to normal grinding position. An upstanding projection 7 on the bracket 6 may engage a slot 8 in the frame 9 so as to guide the bracket, and the flange 5 of the bracket may be provided with forwardly-extending projecting ribs to pre. vent lateral displacement of the bracket. The flange 5 is slotted or provided with a hole to receive a screwed rod 11 which carries a handwheel 12 at its outer end and is secured at its inner end by a washer 14 and pin 15 to the flange 5. The rod 11 engages a screwed hole 19 in the frame 20, and by turning the hand-wheel 12 the roller 3 can be adjusted towards or from the adjacent roller 23.
Patent GB-473389-A (GB)
Title: A new or improved composition for preventing condensation of moisture on glazed surfaces, mirrors or windows
IPC: C09K3/18
Filed: 1936-11-24
Abstract: 473,389. Preventing condensation on glazed surfaces. JACOB, L., JACOB, L. A., and WARREN, W. Nov. 24, 1936, No. 32125. [Class 20 (iii)] A composition for preventing or minimizing the condensation of water on glazed surfaces, mirrors, windows or the like, comprises glycerine and tannic acid, in substantially equal proportions, in solution in ethyl or methyl alcohol. According to an example, such a composition consists of 9 ounces of a mixture of pure and crude tannic acid, 10 ounces of pure glycerine, and 1 gallon of wood spirit.
Patent GB-536276-A (GB)
Title: Improvements in or relating to combined electric switches and plug couplings
IPC: H01R13/707
Filed: 1939-12-14
Abstract: 536,276. Two-part couplings. WALSALL CONDUITS, Ltd., and GOUGH, E. Dec. 14, 1939, No. 32212. [Class 38 (i)] A switch socket fitting having means for locking the switch open when the plug is removed has also a resilient device associated with one of the sockets so as to surround one of the pins, e.g. the earthing pin, and to bind on it to prevent removal of the plug when the switch is closed. The device consists of a ring 18 loosely mounted in a cavity 16 formed above the earthing socket 14. An anchoring plate 21 has a dovetail extension 20 engaging overlapping ends 19 of the ring 18. When the plate 21 is free to rise, the ring 18, if lifted when the plug is removed, beds squarely on the upper surface of the cavity 16 and does not bind on the earthing pin 15. If, however, the plate 21 is prevented from rising the ring 18 tilts and binds on the pin 15. The movement of the plate 21 is controlled by an arm 24 passing through a slot in the plate 21 into the socket 14 so as to be depressed by the pin 15. A lever 28 rocked on the pivot 29 by closing the switch moves over the top of the extension 25 thus preventing the arm 24 and plate 21 from rising. In the normal position shown, the extension 25 lies in the path of the lever 28 and prevents closing of the switch. In a modification, the lever 28 may act directly on the ring 18 to anchor one side of it. Alternatively, one side of the ring may be permanently anchored and the other side biassed to bind on the pin unless it is depressed by a link actuated by opening the switch.
Patent GB-1570440-A (GB)
Title: Rotor for a concrete spray machine
IPC: E04F21/08
Filed: 1977-08-01
Abstract: The rotor (2) has chambers (5, 6) which are arranged concentrically about its axis (4), are open in the axial direction and are intended for receiving free-flowing concrete. The rotor body containing the chambers (5, 6) consists of an elastic material, for example of a single-part rubber body which is enclosed and supported on all sides by a metal cage (7, 8, 9), so that the chamber walls (6') yield as a result of superatmospheric pressure, when blowing out the concrete, in order to avoid adhesion of any remaining concrete. <IMAGE>
Patent GB-581000-A (GB)
Title: Improvements in doors for buildings or shelters
IPC: E06B3/01
Filed: 1936-11-25
Abstract: 581,000. Shelters for aircraft etc.; doors. BELLMAN, N. S. Nov. 25, 1936, No. 32264. [Classes 20 (i) and 20 (iii)] [Also in Group XXV] Relates to doors for buildings or shelters such as aeroplane sheds, particularly those which are camouflaged and turtle-back shaped so as to cast no sharp shadows. According to the invention, one or more sloping doors are adapted to close a doorway aperture in a sloping end or side wall of the building, the door surface, when in the closed position, being substantially flush with the wall, and the door or doors being arranged for movement, first inwardly from the plane of the wall and then laterally so as to leave the doorway unobstructed. Fig. 2 shows in sectional plan one end of an aircraft shed having a doorway b which is adapted to be closed by two doors d, one of which is shown in sectional elevation in Fig. 3. Each door is mounted on a truck with a braced superstructure g to support the door surface, the truck having flanged castors h, to run along a rail track i of L-shape within the shed. To open the doorway fully, both trucks are moved inwardly along the tracks and then to right or left to positions under the roof at the sides of the doorway. One door is shown in Fig. 2 as having been so moved, the other being in closed position. The trucks may be operated by hand, e.g., by means of crank handles z driving through bevel gears a pinion z' meshing with a rack i<2> arranged between the guide-tracks i. The door surfaces may consist of steel plates j, Fig. 3, supported on corrugated steel sheets k laid upon horizontal angle-members l, which are secured to two parallel frame members m extending along the full depth of the door. The members m, which are cross-braced, are mounted upon the truck f. A small wicket-gate r is provided at the bottom of the door. It is carried by rollers so that it can move up and dowrf on tracks between which the gate is mounted. The gate is counterbalanced by weights which are connected to it by cables s, Fig. 3, and are housed in pipes s' upon the truck. A simple fastening for the gate is described. A gutter may be attached to the inner side of one door, near the edge which meets the other door, to collect rain. A fixed hood or canopy e located above the doorway forms a continuation of the sloping wall and doors, and is secured to a reinforced concrete arch y' supporting or adjacent to an inner door y. The main part of the shelter may be excavated in the side of a hill, with the hood and sloping walls covered with earth and turf and the doors painted to match the grass.
Patent GB-209901-A (GB)
Title: A removable bolt head
IPC: F16B21/12
Filed: 1922-11-25
Abstract: 209,901. Mitchell, J., and Cossey, J. C. G. Nov. 25, 1922. Bolts, nuts.-A. box-shaped removable bolt-head or nut B, for use where it is not convenient to apply a screw-threaded nut &c., has a rectangular hole in one wall adapted to be passed over a lug a on the end of a bolt, bar, &c. A, and a recess b in adjacent wall in which the lug a engages when the bolt-head is moved laterally on to it. The head is fixed by a cotter C which is driven through an aperture in the wall opposite to that through which the bar &c. enters. The cotter is held in position by means of a pin D. In a modification, the cotter D is driven through slots in the sides so that it extends transversely across the bolt and is secured by a split pin driven through the projecting end.
Patent GB-379923-A (GB)
Title: A device for preventing variation in the speed of the electrons in the case of braun tubes
IPC: H01J29/52
Filed: 1931-11-23
Abstract: 379,923. Cathode-ray tubes ; television. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. Nov. 23, 1931, No. 32359. Convention date, Nov. 22, 1930. [Classes 39 (i) and 40 (iii).] In Braun tubes in which the intensity of the light spot is controlled, particularly for television, by a cylinder 4 around the cathode 2 or by a grid or other control, the speed of the electrons is maintained constant, as the intensity is varied, by varying the effective part of the potential of the anode supply source 12 by means such as a resistance 13 in the anode circuit. The potential on the anode 3 fluctuates in phase-opposition to the intensity changes ; at weak intensities and low potentials on the control 4 tending to cause reduced speed of the electrons, the anode current is reduced and the anode voltage increased to accelerate the electrons. The resistance 13 may be 100,000 ohms and is adjusted to give a sharp image when the deflected cathode-ray is subject to the control 4.
Patent GB-862890-A (GB)
Title: Improvements in plied cord rope construction
IPC: D07B1/02
Filed: 1957-10-16
Abstract: 862,890. Rope. HIMMELFARB, D., and KAES, W. J. Oct. 16, 1957 [Oct. 16, 1956], No. 32373/57. Class 109. A rope 16 of natural or synthetic material, such as nylon, acrylonitrile or polyester fibres or filaments comprises strands 15 built up from cords 14 of twisted yarns, the cords 14 being balanced. It is stated that a balanced cord structure is attained by controlling the directions and degrees of twist.
Patent GB-274717-A (GB)
Title: Improvements in pirn winders
IPC: B65H54/32
Filed: 1926-12-22
Abstract: 274,717. Brettell, F. G., (Schõrer-Nuss-baumer & Co.). Dec. 22, 1926. Winding-machines.-In a pirnwinder having a thread-guide rod 10, Fig. 1, actuated by a link lever 8 pivoted at 6 and moved by a sliding piece 11, 12 which is automatically adjusted on the lever 8 to reduce the stroke of the thread-guide, the stationary pivot 6 of the lever 8 may be adjusted in the direction of the axis of the cam 33, e.g. in different sockets 3, 4, 5 or along a slot, to co-operate with one or other of the grooves 30, 31, 32 or to wind pirns having unequally coned ends. The sliding member 11, 12 is traversed by a rod 22 engaging in a bore 23, Fig. 2, in the member 24 carrying the cam-roller 29. The rod 13 on which the sleeve 12 slides is fixed in brackets 14. 15 carried by pivoted levers 18, and as the winding proceeds the rod 13 is brought nearer to the plate 1 by a tension-rod 21 against the action of a spring 20, whereby the block 11 is displaced from the pivot of the lever 8 and the stroke reduced to wind a pirn having conical ends. In a modification, the block 11 engages in a transverse slot in the slide 24. Figs. 3 and 4, while the second arm of the lever 18<1> is formed with a cam face 18<11>, or a slot, in engagement with a roller 34 carried on an arm 37 adjustable in the cradle 38 which carries the pirn tube 44. The cradle 38 is mounted on a support turnable on an axle 41 and the tube 44 is pressed by a spring 42 against a roller 43. As the pirn is wound the cradle is turned away from the roller 43 whereby the roller 34 causes a corresponding displacement of the elements 18<1>, 13, 18 to move the block 11 in the lever 8 and shorten the traverse.
Patent GB-1468354-A (GB)
Title: Beam joint
IPC: E04B9/12
Filed: 1974-09-10
Abstract: 1468354 Structural joints METAL SECTIONS Ltd 10 Sept 1974 [6 July 1973] 32428/73 Heading F2M A sheet metal beam 10 of a ceiling structure is connected to a similar beam 11 lying at right angles to it by forming an aperture 25 in the latter which presents one or more straight lateral edges 22 and one or more inclined opposed edges 23, the or each of the latter being adapted to engage a rounded or tapered portion 15 of a tongue 13 on the beam 10 as the latter is inserted into the aperture so that as a resilient integral catch portion 18 of the tongue passes through the aperture the tongue is gradually forced against the edge 22 so that the catch portion snaps behind the aperture in the beam 11 and retains the tongue in a position in which it is prevented from withdrawal by the catch portion and further insertion is prevented by abutments 16, 17 on the tongue. The tongue is preferably strengthened by a raised portion 14.
Patent GB-959090-A (GB)
Title: Permanent magnet work holding device
IPC: B23Q3/154
Filed: 1960-09-21
Abstract: 959,090. Magnetic holding devices. O. S. WALKER CO. Inc. Sept. 21, 1960 [May 5, 1960], No. 32478/60. Heading H1P. A permanent magnet work-holding device which can be used as a rotary chuck for metal turning, includes a circular unit mounted in a ring 10, comprising parallel magnetic polepieces 22 between similarly poled faces of ceramic permanent magnets 24 extending chordwise on a circular base-plate 18 and having notches which engage notches on a positioning member 20. To hold the work the unit is first rotated from the chain dotted position (Fig. 1), in which the polepieces are shunted by pole members 14 lying above the unit and separated by non-magnetic spacers 16, to the dotted position, in which the polepieces 22 are in line with the pole members 14. The unit is then lifted until the polepieces 22 touch the pole members 14. The movements are effected by a shaft 26 operated by a removable wrench and having cams 28 to raise the unit. To prevent ingress of dirt the lower surface is sealed by a disc 33 and an arcuate hole (Fig. 4, not shown), in ring 10 through which the end of the shaft 26 moves is closed by a ring 34 which rotates with the shaft.
Patent GB-1355157-A (GB)
Title: Electrical inverter circuit
IPC: H02M7/537
Filed: 1972-07-12
Abstract: 1355157 Inverting INTERNATIONAL BUSINESS MACHINES CORP 12 July 1972 [16 Sept 1971] 32505/72 Heading H2F [Also in Division H3] An inverter comprises the series arrangement of transistors 20-1 ... 20-N interposed by primary windings 22-1 ... 22-N of a transformer 21 the transistors being driven by respective secondary windings of an input transformer 42. As described, the output transformer 21 may comprise two sets of primary windings 22-1 ... 22-N and 26-1 ... 26-N, the D.C. supply 28 being connected to a centre-tap formed between the two groups. The voltages across the respective transistors are equalized by means of resistors such as 38-1 ... 38-N and by respective Zener or other diodes 52-1, capacitors 60-1 and resistors 56-1 across the individual primary windings 22-1. Respective Zener diodes may also be connected across capacitors such as 60-1. Voltage control may also be achieved by feedback to the base of the respective transistors so as to change the saturation time. The transistors may be driven with a sine or square wave from driver 44 via respective secondary windings 30-1 ... 30-N.
Patent GB-255720-A (GB)
Title: Improvements in rotary pumps and the like, with outwardly sliding spring balanced vanes
IPC: F01C21/08
Filed: 1925-12-24
Abstract: 255,720. Sorge, O. Dec. 24, 1925. Addition to 224,900. Balancing moving parts; fixed - abutment type.-In a rotary pump with outwardly - sliding abutments as described in the parent Specification, in which the outward centrifugal force is balanced by springs attached at each end to diametrically opposite vanes, the springs are attached at the centre to permit of an odd number of vanes, or are in the case of diametrically opposite vanes, attached to rods protruding therefrom. The vanes a, Fig. 1, have rods d<1> extending from their rear faces and the springs b are compressed between the ends of the rods. A resilient ring e<1> may be used instead of the springs, Fig. 4. For pumps employing an odd number of vanes, the springs b are attached at a central point or to a central ring e which moves freely over the central shaft f as the vanes move in and out, Fig. 3.
Patent GB-684246-A (GB)
Title: A new or improved device for transmitting rotary motion from a driving element simultaneously to a plurality of driven elements
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: F16H57/035
Filed: 1949-12-20
Abstract: 684,246. Toothed gearing; belt and chaingearing. RENOLD & COVENTRY CHAIN CO., Ltd. Nov. 8, 1950 [Dec. 20, 1949], No. 32561/49. Addition to 6.53,425. Class 80 (i). [Also in Group XXXI] A. modification of the invention in the parent Specification comprises a device for driving simultaneously two or more driven elements, the distances between which are variable, from a single driving element and having hollow arms 10 pivotally mounted about the driving element 19 and containing chain, belt or toothed gearing transmitting the drive to driven elements 24, 25 at the extremities of the arms. The arms 10 can thus pivot independently to allow for the varying distance between the driven elements which can be at different distances from the driving element and can be driven at different speeds. The invention is particularly applicable to driving shafts of an agricultural implement from a single take-off shaft of a tractor.
Patent GB-380999-A (GB)
Title: Couplings, more particularly for use with feed mechanism for machine tools
IPC: F16D3/12
Filed: 1931-11-24
Abstract: 380,999. Flexibly securing claw clutch members to toothed wheels. HOPPE, O., 27, Kirchstrasse, Rorschach, Switzerland. Nov. 24, 1931, No. 32566. [Class 80 (ii).] A claw clutch element 3 within the hub 2 of a machine-tool feedwheel is yieldingly connected to it by balls 6 pressed radially inwards by helical springs 8 into V-shaped recesses 5 in lugs 9 on the element, which lugs, by abutting against surrounding shoulders 11 in the hub when the balls ride up the recesses, limit the relative movement permitted. The facial clutching teeth 4 on the element have pointed ends.
Patent GB-758843-A (GB)
Title: Magnetic recording material
IPC: G11B5/70
Filed: 1953-11-24
Abstract: Acicular gamma ferric oxide crystals are produced from acicular red iron oxide of particle size in the range 0.2x1 micron to 0.5 x 3.5 micons, which may themselves be formed by dehydrating alpha ferric oxide monohydrate.  The red oxide is heated for 1/2 -2 hours at 315-380 DEG C. in a reducing gas such as town gas or a mixture of CO and H2.  When the particles are black and have an analysis of 25-31 per cent FeO, remainder Fe2O3, they are cooled to 200 DEG C. and oxidized in air at 200-400 DEG C. until they are reddish yellow, the FeO content being less than 1 per cent.  Specification 684,970 [Group IV(a)], is referred to.
Patent GB-928953-A (GB)
Title: Frequency-control circuit for an electronic oscillator
IPC: H04N5/202
Filed: 1959-09-25
Abstract: 928,953. Thermionic-cathode tubes. STANDARD TELEPHONES & CABLES Ltd. Sept. 25, 1959 [Sept. 27, 1958], No. 32656/59. Class 39 (1). [Also in Group XL (c)] An oscillator frequency is controlled by one or more capacitors C3, C2 and a diode K1, A1 connected in series between the anode and cathode of the oscillator tube and in the same envelope as the latter, a control voltage being applied to vary the diode impedance. The capacitor C3 may be formed by a metal annulus S surrounding a cylindrical anode A (Fig. 5) and the diode anode by a reduced diameter section S1 of the annulus surrounding the cathode K. Alternatively a metal plate may be capacitively coupled with the oscillator tube anode and may be extended to form with the oscillator cathode a diode control tube.