baber/WOPTO huggingface dataset:
Patent GB-517182-A (GB)
Title: Improvements in or relating to piston machines
IPC: F16F15/22
Filed: 1938-07-21
Abstract: 517,182. Balancing, steam &c. engine parts. AKTIEBOLAGET BOLINDER - MUNKTELL. July 21, 1938, No. 21701. Convention date, July 21, 1937. [Class 122 (iii)] [Also in Group XXXI] An internal - combustion or other piston machine, with a crank-shaft and having relatively few cylinders and unsymmetrical in shape with respect to the axis of rotation, is dynamically balanced. A machine body enclosing the piston mechanism is journalled movably about a centre on the axis 'of rotation in bearings so that impulses are taken up by the machine body, spring members being interfixed between this body and a fixed abutment such as the machine bed. As shown, the body is rotatably journalled in the base 18 in bearing elements 16, which can rotate relatively to the bearings 17, rigidly secured to the base. The centres of the bearings 16, 17 coincide with the axes of the crank-shaft. Below the shaft, the casing is formed as a balance weight 20, which statically and dynamically balances the engine body. An arm 23 rigidly secured to the crank case, engages a spring 22 housed in a piston 24 in a cylinder 25 connected tu a second cylinder 27 containing a piston slide valve connected to the arm 23. A port 32 in the valve puts a passage 26 in communication with pressure oil 33 or an outlet 34. An oil outlet 36 with a non-return valve 37 is connected to the bottom of the cylinder 27. An oil discharge channel 38 opens into the cylinder 27 at a distance above its bottom. Eccentrics 41 are arranged on the shaft on each side of discs 40 and have a stroke about one third of the crank throw. Eccentric straps 41 carry a member 44 mounted on guides 45. The balance weight 44 is three times the weight of the piston 12 and rod 13. A silencer 51 is connected to the cylinder by a conduit 50, with spherical engaging surfaces containing packing rings 53 to permit oscillations. When the arm 23 moves downwardly under a high reactive impulse, oil is supplied from the pipe 33 to the cylinder 25. In an upper position, the channel 32 communicates with the discharge 34. The setting length or stroke of the piston 24 is, e.g., ten times the oscillation amplitude of the casing 11. If the engine is to be constructed for reverse running as well as forward running, a further spring device of a similar kind is provided on the opposite side of the shaft. A modified manner of balancing the interior-moving members of the engine is shown in Fig. IV. A weight 44 is connected by a rod 43 to a crank pin 41 with half the throw of the crank 14. The weight of the piston and rod 44, 41 are double those of the piston 12 and rod 13.
Patent GB-151254-A (GB)
Title: Improvements in or relating to casting curved tubular bodies
IPC: B22D19/04
Filed: 1920-07-19
Abstract: 151,254. Acme Die Casting Corporation, (Assignees of Bungay, G. W.). April 21, 1920, [Convention date]. Moulding pipes and tubes.-A three-part core for use in casting curved tubular bodies is described as applied to die-casting a gramophone tone-arm. The parts 1, 2 engage on the outer curve and retain firmly between them the part 3 which forms the inner curve. The engaging surfaces 4, 7 are flat and the surfaces 5, 6 are recessed at 10, 11 and arranged at an obtuse angle. The parts 1, 2 may be supported and operated by the die-casting machine, the part 3 being placed on the part 1 by hand.
Patent GB-159452-A (GB)
Title: Improvements in devices for facilitating the threading of needles
IPC: D05B87/00
Filed: 1920-07-20
Abstract: 159,452. Giesser, W. July 20, 1920. Needle - threaders. -A needle d is inserted in a recess c where it is held by a spring - pressed plunger f. The needle is used to depress a part m and when that is depressed a positioning pin k is freed, is moved forward by a spring and, entering the needle - eye, positions it in front of the funnel b. The pin k is then removed and being turned through a right-angle is held withdrawn by a cross-pin p while the thread is passed through the funnel b and the needle eye. The end of the thread is then gripped between two sliding blocks r and s and the needle is withdrawn.
Patent GB-858738-A (GB)
Title: Graduated grading stick
IPC: A22B5/00
Filed: 1959-06-25
Abstract: 858,738. Measures of length. HYGRADE FOOD PRODUCTS CORPORATION. June 25, 1959 [Jan. 27, 1959], No. 21822/59. Class 106 (2). [Also in Group XX] A measuring stick 10 with a scale 12 for grading animal carcasses has a flange 11 projecting from one end at right-angles, with its inner side disposed at the zero mark, and a second flange 13 projecting in the opposite direction with its outer side at the zero mark. To measure the length of a carcass the outer side of flange 13 is placed against the aitch bone, and to measure the back fat thickness the inner side 19 of flange 11 is hooked over the back of the carcass.
Patent GB-636357-A (GB)
Title: Improvements in or relating to stabilizing circuits for electron discharge devices
IPC: H05G1/34
Filed: 1947-08-08
Abstract: 636,357. Automatic current control systems; rectifying. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 8, 1947, No. 21835. Convention date, Oct. 9, 1941. [Classes 38 (ii) and 38 (iv)] The space current of an X-ray tube fed with rectified H.T. is maintained constant by variation of the cathode heater current in response to changes in space current. A transformer 5 having double secondary windings 9, 10 connected to pairs of rectifiers 13, 14 ; 17, 18 provides a full-wave rectified, unsmoothed, high-tension supply for the X-ray tube 12..The circuit includes a variable series resistor 20, the voltage drop across which is proportional to the space current of the tube. A gaseous discharge device 32 is connected through resistors 33, 34, in parallel with resistor 20. If the space current increases, the voltage peaks, due to the unsmoothed supply, which appear across resistor 20 cause device 32 to conduct periodically and place a negative bias voltage on the grid of valve 36, reducing the current in the control winding of a saturable reactor 30 connected in the anode circuit of valve 36. The D.C. control current is derived from a transformer 40 and rectifier 48. The saturable reactor being in series with the primary of transformer 25 controls the heater current of the tube cathode to restore the space current to its predetermined value. In a modification, Fig. 2 (not shown), the tube H.T. supply is derived from a transformer having a split secondary supplying a bridge rectifier.
Patent GB-1339784-A (GB)
Title: Production of mixed oxides containing aluminium oxide
IPC: C01F7/56
Filed: 1971-04-19
Abstract: 1339784 Mixed oxides containing Al 2 O 3  BAYER AG 19 April 1971 [5 March 1970] 21871/71 Headings C1A and C1N Mixed oxides containing Al 2 O 3  are produced by vapour phase oxidation of an AlCl 3 /MCl 4  mixture which is obtained by reacting non- fluidized finely divided Al with a Cl 2 /MCl 4  gas mixture. The temperature of the Cl 2 /MCl 4  mixture should be at least 140 C., e.g. 250- 600 C., and be such that the resulting AlCl 3 / MCl 4  mixture is at most 900 C. M may be Si, Ti, Sn, or Zr. The Al may be sprayed, in liquid or powder form, optionally with inert gas, e.g. Ar, into a swirling mixture of Cl 2  and MCl 4 , to give a mixture containing 1-15 vol. per cent AlCl 3 , to which further MCl 4  may then be added. The mixture is then oxidized with O 2  or air at above 900 C., preferably in the apparatus of U.K. Specification 1,233,921 in which O 2  is introduced axially and chloride is introduced radially, surrounded by inert gas, e.g. Cl 2  or N 2 , optionally with CO or CCl 4 , inert gas also being fed through porous walls. Examples describe the production of TiO 2  and SnO 2  containing minor amounts of Al 2 O 3 .
Patent GB-170646-A (GB)
Title: Improvements in brake mechanism for motor cycles and the like
IPC: B62L3/02
Filed: 1920-07-22
Abstract: 170,646. B.S.A. Cycles, Ltd., and Poole, H. July 22, 1920. Brake mechanism.-In brake mechanism for motor-cycles &c. wherein a brake shoe 1 is carried on a pivoted operating arm or lever 2 mounted on a bracket 4 upon the frame, the shoe is mounted on parallel-link mechanism 2, 7, 8, 12 so constructed and arranged as to cause the shoe to move in a direction approximately radial in relation to the brake rim, the whole of the inner surface of the brake block being simultaneously brought into contact with the brake rim. As shown, the operating-lever forms one member of the parallel-link mechanism, and its fulcrum pin 3 is adjustably mounted in the bracket, being fixed in position by a set-screw 15 and lock-nut. The link 7 is mounted on a squared portion of the pin 3 and constitutes an anchor link for the mechanism.
Patent GB-789243-A (GB)
Title: Improvements in and relating to the dyeing of textile materials
Inventor: BRADSHAW SAUL NELSON
Filed: 1955-07-29
Abstract: Textile materials are dyed by applying a dyestuff and a mixture of urea with one or more substances soluble in molten urea and capable of lowering the melting-point thereof, then baking at a temperature between the melting-point of the mixture and 160 DEG  C., and finally washing and drying.  Specified substances are thiourea, dicyandiamide, boric acid, glycerol, ethylene glycol, sodium chloride, ammonium chloride, ammonium sulphate and decomposition products formed in situ by heating urea above its melting-point and allowing it to resolidify.  The dyestuff and the mixture may be applied to the textile from aqueous solutions or dispersions, specified dyestuffs being direct, dispersed acetate, soluble acetate, aggregated acid, metal complex and leuco esters of vat dyestuffs. The process is applicable to textiles of cotton, wool, regenerated cellulose, regenerated proteins, cellulose esters, polyamides, polyesters, polyvinyl compounds and mixtures thereof.  Examples describe the dyeing of viscose rayon, cellulose acetate yarn, nylon yarn and regenerated protein staple yarn.
Patent GB-356167-A (GB)
Title: Improvements in or relating to screw-cutting die heads
IPC: B23G1/22
Filed: 1930-04-02
Abstract: 356,167. Screwing dies and dieheads. JONES & LAMSON MACHINE CO., Springfield, Vermont, U.S.A.-(Assignees of Bysshe, E. T. ; 91, Summer Street, and Finn, R. R. ; 98, Wall Street, both in Springfield, Vermont, U.S.A.) April 2, 1930, No. 21941/31. Convention date, April 3, 1929. Divided on 356,185. [Class 83 (iii).] Chasers.-In a screw-cutting die-head, chasers of the tangent type are carried in holders movable to and from the axis of the head and are spaced from the end face of the head only sufficient for sliding clearance. The tangential chasers 10 are adjustably mounted in carriers 6 radially adjustable in dove-tailed grooves in the body 3 and have dovetailed projections 13 closely fitting similar grooves in the carriers, the interengaging parts on the chasers, carriers and head being ground and lapped to provide an accurate fit free from play. The rear edges of the chasers lie substantially against the forward face of the body 3, as shown in Fig. 1, with clearance just sufficient to allow sliding without tilting. The rear ends of the dovetails 13 on the chasers are provided with ratchet teeth 15 for engagement with similar teeth on plugs 19 located in housings in the carriers 6 and pressed against the chasers by springs 21. Plugs 26 are located in apertures 27 in the carriers and have conical ends engaging slots 25 in the plugs 19, the construction being such that the chasers may be pushed forwards, but are prevented from being retracted until the plugs 19 have been withdrawn by end pressure on the plugs 26. The latter are retained in position by spring rings 270.
Patent GB-1007249-A (GB)
Title: Joint for use in scaffolding
Inventor: CADMAN KENNETH JOHN
IPC: E04G7/30
Filed: 1963-06-04
Abstract: 1,007,249. Scaffolding joints. RAPID METAL DEVELOPMENTS Ltd. May 29, 1964 [June 4, 1963; Aug. 2, 1963], No. 22116/63 and 30694/63. Heading E1S. A lug 10 on a scaffolding standard is engaged by a socket 12 on a scaffolding tube 13, a screw 14 in the socket having a conical surface 14b adapted to engage the end of the lug and force undercut parts 12b of the socket against undercut parts of the lug. The inter-engaging undercut parts are inclined downwardly and inwardly towards the standard and the socket rests on stops at the bottom of the lugs. In a modification the lug has an upstanding part which is inserted between the screw 14 and the base 12a of the socket which is however of different construction to that of Fig. 1 and the screw 14 has a lock nut device.
Patent GB-1416127-A (GB)
Title: Method of dispersability of small matellic magnetic particles in organic resin binders
IPC: C09D7/12
Filed: 1974-05-17
Abstract: 1416127 Treating Co-P particles with H 2 SO 4  solution INTERNATIONAL BUSINESS MACHINES CORP 17 May 1974 [30 Aug 1973] 22233/74 Headings C7D and C7E Magnetic Co-P particles made by reduction of Co-salt solutions with hypo-phosphite are treated with sulphuric acid to increase their dispersability in organic resin binders. Aluminium chloride may be added to the H 2 SO 4  solution as an additional etchant. A specified binder is polyurethane.
Patent GB-1353463-A (GB)
Title: Conveyor roller
IPC: B65G39/02
Filed: 1972-05-15
Abstract: 1353463 Conveyer rollers HANS VOM STEIN OHG 15 May 1972 [4 Feb 1972] 22609/72 Heading B8A [Also in Division F2] A conveyer roller, Fig. 1, (top half) comprises an end assembly 12 consisting of an inner sleeve 16, an intermediate ring 24, and an outer ring 40. The sleeve 16 and ring 24 support a ball bearing 19-21 which is sealed by a packing ring 48 and by a ring 34 which is spring urged against a flange 32 of a ring 30. The outer ring 40 and the intermediate ring 24 have coacting splines and are further secured by a rib 43 and a groove 27. The wall thickness of the intermediate ring 24 or of the outer ring (or of both rings) increases (not shown) from the inner to the outer end so that one or both rings form an annular wedge. In assembly, the rings 48, 34, 30 and ball bearing 19-21 are mounted on the sleeve 16 before being located in the intermediate ring 24 which is itself located in the end of the shell 10 of the roller. The outer ring 40 is then forced between the ring 24 and the shell, with the rib 43 engaging in the groove 27. Sprockets 60 driven by chains 61 are secured by splines on the sprockets and a sleeve 54. Plastics material is specified but the shell 10 may be of metal. When larger sprockets are used, (lower half of Fig. 1) a second ball bearing 19-21 is provided at this end of the roller.  In the modification in Fig. 2, the outer ring 40a is of U-shaped cross-section and a support ring 69 is radially split at (70), Fig. 3 not shown.
Patent GB-154015-A (GB)
Title: Improvements in machinery for forming and applying wire staples
IPC: B27F7/21
Filed: 1919-09-15
Abstract: 154,015. Sharp, J. W., and Sharp, J. W. Sept. 15, 1919. Stapling.-The invention relates to improvements in cutting-plates and clenching-devices in machines, such as of the type described in Specification 8634/86, which are provided with a cam-operated stapling-head, Fig. 2, and a camoperated clinch block. The cutting-plate a<1>, Figs. 1 and 3, is made adjustable horizontally towards a vertically reciprocating knife and bender b. The adjustment is made by a screw s and the plate is then held by other screws s<1> &c. passing through elongated slots a<4>, a<3>. The wire is shown at w passing through the cutting- block towards the staple-forming head, Fig. 3. After the staple is made over a former b<3> and passed through the work, such as cardboard, the ends are clinched by a plate d', Fig. 9. The plate is pushed upwards by links d<3>, Fig. 2, connected to a rod e acted on by a spring pusher e' operated by a cam h. The clinch block is provided with a part d<6> renewable when required. The stapling head is provided with a spring h<1>, Fig. 1, which prevents shake when the cams wear.
Patent GB-956081-A (GB)
Title: Improved power feed drill
Inventor: WEBB GEORGE HENRY
IPC: B23B47/22
Filed: 1962-06-13
Abstract: 956,081. Drilling and boring. DESOUTTER BROS Ltd. April 9, 1963 [June 13, 1962], No. 22710/62. Heading B3C. A pneumatic power feed drill comprises a central valve portion 1 attached to an outer casing 3 and a two-port inner casing 9, longitudinally slidable within the outer casing, housing a pneumatic motor 4 and gearing 5. The inner casing 9 constitutes a piston which effects the tool feed, the motor 4 rotatably driving the output shaft 6 by way of the gearing 5. Air under pressure is admitted to the tool through connector 21 and the feed movement produced is controlled by a shuttle valve 19. As the feed movement continues, radial bores 23 in coaxial tube 20 are uncovered and air present in the annular space 22 around the tube 20 enters the bores 23 to start the motor 4. To stop the feed at the required depth there is provided on the tube 20 a crosshead 56 which carries a threaded rod 58 which is adjustable and is adapted to co-operate with a valve 60. The operation of valve 60 permits air to by-pass the piston only and stops the feed, the piston then being returned under the action of spring 14. The feed rate at which the tool approaches the work is controlled by an adjustable needle valve within the valve portion 1. To control the feed stroke the rate of penetration of the tool into the workpiece to allow for tool size and nature of material of the workpiece a dash-pot 66 may be provided which contains a piston with an extension 62 which is engageable with a threaded rod 63 on the crosshead 56. The position of contact between the rod and piston extension are adjustable and can be locked by nut 64. The dash-pot may therefore be used in conjunction with the needle valve to control the feed rate throughout the whole drilling operation.
Patent GB-648876-A (GB)
Title: Windows
IPC: E06B1/36
Filed: 1948-08-30
Abstract: 648,876. Windows. PERSSON, E. S. Aug. 30, 1948, No. 22797. Convention date, Sept. 8, 1947. [Class 20(iii)] In a double-light casement window with or without a central stationary light as in Figs. 7 and 4 respectively the frame of each casement comprises a U-shaped metal member 2 with rounded corners between the web and the legs. The frame is profiled to permit the insertion of the glass from the open side of the U. The fourth side may be completed by a member connecting the free ends of the legs.
Patent GB-953796-A (GB)
Title: Speed regulators for rotary electrical machines
IPC: H02P25/18
Filed: 1960-06-30
Abstract: 953,796. Centrifugal switches. ELECTROLUX A.B. June 30, 1960 [July 3, 1959], No. 22907/60. Heading H2B. [Also in Division G3] In a centrifugal switch for controlling the speed of an electric motor the movable contact 36 is carried by a leaf spring 37 adjacent to which is a second leaf spring 38, the spacing of the free ends of the springs being adjustable by a screw 45 which thus provides a fine adjustment of the governed speed. When the contacts open a ceramic resistance 41, mounted on a cooling flange 43, is inserted in series with the motor, which is a series wound, universal machine. The switch is mounted on two mica separated plates 22, 23 to which contact is made by brushes, not shown.
Patent GB-811554-A (GB)
Title: Improvements in or relating to switching-circuit arrangements incorporating electric discharge tubes
IPC: H03K3/04
Filed: 1957-07-19
Abstract: 811,554. Multivibrator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 19, 1957 [July 23, 1956; May 21, 1957], No. 22937/57. Class 40 (6). A switching circuit comprises two pentode tubes reciprocally coupled as a multivibrator between anode and suppressor grids the suppressor grid of each tube also being connected to the anode of a respective diode the cathodes of which are connected to the cathodes of the pentode tubes. An auxiliary tube which furnishes switching pulses has its anodes connected to the control grids of the pentode tubes and its control grids connected to the screen grid of these tubes. The pentodes are simultaneously cut off periodically by the rectangular switching pulses and when the trailing edge of a switch impulse occurs one or other of the pentodes is changed into its conductive condition. The Figure shows a switching circuit in which pentode tubes 1, 2 are reciprocally coupled between anode suppressor grid so that by normal multivibrator action when tube 1 is conducting tube 2 is cut off. A control voltage is applied via resistor 31 to the control grid of tube 1 and a reference voltage via resistor 32 to the control grid of tube 2. When the anode current in tube 1 increases the screen voltage drops so that switching tube 21 is cut off until after a period determined by the time constant of network 22, 23, tube 21 conducts and both tubes 1 and 2 are cut off. This action is repeated periodically with tubes 1, 21 and tubes 2, 21 acting as multivibrators, the period being determined by the time constant of the coupling networks in the normal manner. Thus a series of negative switch impulses occur at the anode of tube 21 so that the pentodes 1, 2 are simultaneously cut off. In this position the anode voltages of the two tubes are equal, diodes 5, 6 conduct and the suppressor grids of the tubes 1, 2 have equal potentials. When the trailing edge of the negative switch impulse occurs one of the tubes 1, 2 starts to draw current, for example when the control voltage supplying the control grid of tube 1 exceeds the reference voltage at the control grid of tube 2, tube 1 draws currents. Thus an auxiliary voltage appears at the anode of tube 1 or 2 respectively when the level of their control voltage, exceeds the respective reference voltage.
Patent GB-769795-A (GB)
Title: Improvements in and relating to trucks for lifting, carrying, tipping and setting down tubs
Inventor: SAUER LEO
IPC: B60P1/16
Filed: 1954-08-06
Abstract: 769,795. Lift trucks; portable apparatus for tipping containers. STOLBERGER MASCHINEN-UND APPARATEBAU GES. Aug. 6, 1954, No. 22978/54. Classes 78 (3) and 78 (4). A truck for transporting and tipping tubs 10 comprises a two-wheel tractor 13 pivoted at 16, 17 to a wheeled fork member 14 provided with a pair of spaced linkage 19, 20, 21, 22 which, when extended by hydraulic thrusters 23, first engage lips 11 on the tub and raise it to a transport position in which links 21 abut members 24 secured to the fork, and then, on further extension of the thrusters, move the tub to the discharge position shown in Fig. 3. Fingers 20a on links 20 engage a projection 12 on the tub during raising of the linkages and so secure the tub thereto.
Patent GB-1205490-A (GB)
Title: Machine for opening up fibrous materials
IPC: D21B1/32
Filed: 1968-05-15
Abstract: 1,205,490. Defibrating apparatus. H. H. BURKHARDT, H. M. KURTZ and M. KURTZ [trading as HERMANN FINCKH, METALLTUCH - UND MASCHINENFABRIK]. 15 May, 1968 [22 June, 1967], No. 23061/68. Heading B2A. [Also in Division D2] A machine for opening up fibrous material comprises a casing, tangential feed 15b, and discharge, 15c, connections in the casing, an impeller wheel, 14, mounted for high-speed rotation within the casing, the cavity containing the wheel being only slightly wider than the wheel itself, the portion of the periphery of the wheel extending from the feed to the discharge connections forming, with the periphery of the cavity, a gap, through which the material flows in the direction of rotation of the wheel, a plurality of spaced-apart insert elements being mounted in the gap, the elements being wedgeshaped, and increasing in thickness in the direction of flow, there being a minimum radial gap width of at least 10 mm. The surfaces of the casing and inserts may be roughened, and the impeller wheel may be provided with teeth 14b. The minimum gap, X, is preferably such that the flow velocity at this minimum gap is 100 times greater than that adjacent the feed connection 15b. The wheel is preferably driven at such a speed that the flow velocity is increased from 1m./sec to the feedconnection to 100-120 m./sec. at the narrowest part of the flow passage. The maximum value preferred for X is 25 m.m.