baber/WOPTO huggingface dataset:
Patent GB-126072-A (GB)
Title: Improvements in or relating to Aeroplane-wheel Bearings.
Inventor: SLOPER THOMAS
IPC: B60B3/00
Filed: 1916-11-29
Abstract: 126,072. Sloper, T. Nov. 29, 1916. Vehicle - axle bearings; bushes.-A wheel for aeroplanes is fitted at each end with a loose bush B retained in the hub A by a spring- pressed ball detent C, which allows the bush to be removed without the use of a tool. The bush normally rotates on the axle, but if it seizes, the hub rotates on its outer surface.
Patent GB-1470333-A (GB)
Title: Punch press
IPC: B26D7/02
Filed: 1974-04-18
Abstract: 1470333 Workholders WARNER & SWASEY CO 18 April 1974 [6 June 1973] 17094/74 Heading B3W A workholder 18 for presenting a sheet workpiece 80 to a punch 34 includes a gripper 74 connected to a fixed member 106 by bendable means 116 which allow the gripper to move up and down with the workpiece during punching and stripping. The gripper comprises a pair of arms 86, (84), Fig. 2 (not shown), carrying a lower jaw 96 and arranged one each side of an upper arm 88 carrying a jaw 94. The arm 88 is pivoted to arms (84), 86 at 90 and is movable about the pivot 90 by a pneumatic actuator 76. The workholder is mounted on a slide 64 movable axially of a shaft 66 by a drive screw (not shown). A carriage 72 carrying the slide and shaft is movable along guides 73 by a screw 70. The arms (84), 86 are connected to the member 106 which is fixed to the slide 64 by portions 116 of reduced vertical thickness which allow the arms to bend in a vertical plane, The member 106 and the arms (84), 86 may be cast integrally and the portions 116 reduced by machining. To prevent permanent or plastic deformation of the portions 116, a pin 146 on each arm engages in a slot 148 in a respective guard 150 fixed to the member 106 at 166. An upper section 164, of each guard protects the upper surface of the portions 116. The pin and slot device may be omitted, the forward edge 170 of the sections 164 acting as a stop for upward movement of the arm. Two workholders 18, 20 may be mounted on the slide 64 and be associated with a roller table 52 and fixed side tables 48, 50 in a turret press 10.
Patent GB-386009-A (GB)
Title: Improvements in direct current motor control
IPC: H02P7/282
Filed: 1931-06-12
Abstract: 386,009. Field control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. June 12, 1931, No. 17121. Convention date, June 24, 1930. [Class 38 (iii).] A traction motor M, which may be one of four, is accelerated by exclusion of starting resistances in the usual way so as to keep the current constant, thereafter acceleration is continued by control of an independent field P in such a manner that the torque is maintained constant. The field P is supplied from an exciter E having a shunt field sh the resistance of which is such that its resistance curve coincides with the initial straight part of the no-load volts-excitation characteristic of the. exciter, a cumulative field s traversed by the motor current and an opposition field d energized by a pilot exciter p driven at a speed proportional to that of the vehicle. As the vehicle accelerates, the field d increases causing reduced excitation of the field P to such a value that the current in the motor and therefore in the field s increases to balance the increase of the field d. Thus the motor current is increased proportionally to speed, that is, the motor torque is maintained constant.. In a four-motor system, after the motor current has been doubled by halving the motor field, the motors are changed from series connection to series-parallel and a resistance inserted in series with the field d and pilot exciter p. Thereafter, the motor field is again weakened by the action of the exciters and a similar transition is made to full parallel connections. After further field weakening the field P is suppressed and the motor is operated on its normal series characteristic. Operation of the motor M with twice its normal current and half its normal field can be avoided by allowing the acceleration to proceed until the current is nearly twice the normal value and then supplying the field d with a constant voltage until a transition is made whereupon the field d is again supplied from the pilot exciter p. A reversal of the control process effects regenerative braking with a constant braking torque. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the pilot exciter is opposed to a constant voltage, the field d acting cumulatively to the shunt field sh and the field s being replaced by an opposing field traversed by the current supplied to the field P. Also the exciter E can be omitted, the pilot exciter acting directly upon the field P. This subject-matter does not appear in the Specification as accepted.
Patent GB-370734-A (GB)
Title: Improvements in or relating to tipping apparatus for wagons
IPC: B65G67/00
Filed: 1931-06-12
Abstract: 370,734. Tipping-apparatus for wagons &c. ELLSON, B. E., Abford House, Wilton Road, Victoria, London. June 12, 1931, No. 17123. [Class 78 (iv).] Apparatus of the kind in which the wagon runs on to a platform before passing on to the tipping table has a platform so mounted and operated by the tipping-apparatus as to form a ramp for directing the wagon on to the table. The platform A is mounted on a pivot E and has an extension arm F adapted to engage underneath the table B. A post C on the ground serves as a chock to hold the wagon J on the platform. When the tipping table B with an emptied wagon H is lowered on to the supports G, the table engages the arm F and tilts the platform A to form a ramp. This releases the wagon J from the stop C and the wagon J pushes the empty wagon H off and follows it on to the table being stopped thereon by the segmental stop D. The rails on the table B may be inclined at the incoming end to form a continuation of the ramp. The stop D, Fig. 7, is frictionally held in its various positions and has cut-away sectors p<1>, p<2> to engage the wheels of the first wagon as it passes off the table, the stop being tilted so that the sector P<3> engages and stops the leading wheel of the next wagon. A pin M on the stop is engaged by a re-setting device as required. In modifications, Figs. 4-6 (not shown), the extension arm on the platform is replaced by pivoted levers under the platform. In another modification, Fig. 11, the platform A is counterweighted at F<3>, and the table B engages a projection A<1> on the platform as it descends. In a further modification, Fig. 13, the platform and table operate as in the construction shown in Fig. 1, but additional control mechanism is provided comprising a switch V operated by the emptied wagon and controlling the starting of the tippler hoist T, the track L<9> for the oncoming wagons being fitted with a stop D<1> operated by linkage X<2> actuated by a one way pivoted arm 19 on the table. A plate Q on the tippler forms the re-setting device for the segment D. Specification 340,684 is referred to.
Patent GB-688710-A (GB)
Title: Improved temperature regulating means for electric mouthpiece heaters in type composing machines
IPC: B41B11/76
Filed: 1950-07-10
Abstract: 688,710. Thermal switches. BADER, H., (trading as ELEKTRO-FUNDITOR BADER & CIE). July 10, 1950 [Oct. 4, 1948], No. 17222/50. Class 38 (v) [Also in Groups XI and XIII] A mercury switch 11 pivoted at 10 is operated by a lever 9 on a thermostatic device comprising a Bourdon tube 7 connected by a capillary tube 6 to a mercurycontaining, flat, rectangular, metal vessel 1 which is mounted on or incorporated in an electric heater on the mouthpiece of a casting pot of a typesetting machine (see Group Xl) and has parallel bores 2 communicating through apertures 4 and provided with welded covers 3.
Patent GB-172968-A (GB)
Abstract: 172,968. Atlas Maschinenbau Ges. Dec. 14, 1920, [Convention date]. Nails. - An upholstery nail in which the head-plate b is riveted to the shank on both sides, has a pattern c embossed on the head plate which extends over the upper riveted portion of the shank to render the riveting invisible.
Patent GB-649637-A (GB)
Title: Improvements relating to horizontal boring machines
IPC: B23Q17/24
Filed: 1949-06-30
Abstract: 649,637. Scale-reading apparatus. KEARNS & CO., Ltd., H. W., and KEARNS, Sir H. W. L. June 30, 1949, No. 17308. [Class 97 (i)] [Also in Group XXII] In a horizontal boring-machine (see Group XXII), an image of a vertically-adjustable scale g is projected by means of a lamp p and mirrors q, r and t on to a translucent screen l bearing a vernier scale. The bar g is initially adjusted so that its zero and that of the vernier are coincident. Movements of the scale are then viewed through a window n by means of a mirror o.
Patent GB-263506-A (GB)
Title: Improvements in or relating to exhausting means of internal combustion and other engines applicable also for use with air or gas pumps or compressors and the like
IPC: F01N13/12
Filed: 1925-07-06
Abstract: 263,506. Martin, W. H. July 6, 1925. Air and gases, treating with liquids. - In a silencer or spark arrester for internal-combustion engines, air or gas compressors, &c. the gases act ejectorwise to put liquid in motion between guiding surfaces 8, and the discharge orifice for the gases is automatically adjusted by a valve 1, as described in Specification 8243/11, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. The valve is controlled by one or more springs 5 arranged to compensate the weight of the valve and adjustable by means such as a nut 6 to regulate the back pressure to a minimum approximating to the head of liquid above the valve. The surfaces 8 are arranged below an elbow 9 depending into an open tank, the valve opening downwards, and the elbow may have a water jacket 10. For use on board ship, the tank may have raised sides 17, the ends 18 sloping upwards from their centres, in order that rolling of the ship may not effect the head of water materially, the tank being fed from the water jacket 10 and overflow from the ends 18 taking place through an outer casing 13 and pipe 15. In modifications, the valve stem and spring are below the valve, and overflow takes place through stand pipes connected to a common outlet pipe.
Patent GB-948761-A (GB)
Title: Improvements in or relating to transistor circuits
Inventor: BASSETT HARRY GORDON
IPC: H03F3/21
Filed: 1959-05-21
Abstract: 948,761. Transistor amplifier circuits. POSTMASTER GENERAL. May 5, 1960 [May 21, 1959], No. 17372/59. Heading H3T. [Also in Division H1] A transistor amplifier has a plurality of pushpull pairs of transistors each pair being fed by a separate centre tapped secondary winding of an input transformer, the transformer core arrangement 8 having the secondary windings so arranged that each links a flux path not linked by any other secondary. Resistors R 1 , R 2  provide forward bias in order to reduce cross-over distortion and, for good linearity, the stage may be driven from a high impedance source. The transformer core arrangement may comprise a number of closed cores each carrying a secondary winding and all linked by the primary winding (Fig. 2, not shown).
Patent GB-829496-A (GB)
Title: Improvements in or relating to permanent waving of hair
IPC: A45D2/00
Filed: 1955-06-16
Abstract: 829,496. Hair waving appliances. SUPERMA Ltd., and SARTORY, P. K. June 18, 1956 [June 16, 1955], No. 17394/55. Class 131 A curl casing for use in permanent waving comprises two disc like members 1, at least one of which has an inner recess, adapted to be closed to present a shallow space adapted to contain a flat spiral tress and a sachet 5 which is either exothermic or impregnated with treatment solution. The casing wall has an opening 8 to receive the root end of the tress. As shown the two members are hinged together, provided with finger pieces 3 and urged together by a spring 2 surrounding the pivot; in a modified form the members are separate, have interengaging cut out parts and projections on their meeting faces, and are held in closed relation by clips which may be pivoted to one member. The sachet, as supplied, may be an absorbent pad impregnated with ammonium thioglycollate solution and contained in a moisture proof covering which may contain a plurality of sachets. Preferably the members 1 and the sachet have aligned central holes 6 and, in use the tress is wound in a spiral on a mandrel the ends of which are then inserted in the holes 6, the casing is closed, and the mandrel is withdrawn.
Patent GB-674566-A (GB)
Title: Improvements in diphenylamine dyestuffs
IPC: C09B51/00
Filed: 1950-07-12
Abstract: The invention comprises 2-nitro-diphenyl amine-4-sulphonmorpholides, which may have in 41-position an alkyl, hydroxyalkyl, alkoxy, acylamino, or aryl group, and are made by condensing 1 - chloro - 2 - nitro - benzene - 4 - sulphonmorpholide with a p-substituted aniline in presence of an acid-binding agent.  The products dye cellulose derivatives (e.g. the acetate) yellow to orange shades.  The reaction may be carried out in water, ethyl or amyl alcohol, ethylene glycol monoacetate, ethylene glycol monoethyl ether, or in excess aniline. Acid-binding agents specified are magnesium oxide, calcium carbonate, calcium hydroxide, sodium formate or propionate, and calcium or potassium formate, acetate, or propionate.  Examples describe the condensation of 1-chloro-2 - nitrobenzene - 4 - sulphonmorpholide with aniline and p-methoxy- or ethoxy-aniline.  Other p-substituted anilines specified are those having in p-position one of the following substituents: methyl, ethyl, propyl, hydroxymethyl, b -hydroxymethyl, g -hydroxy-propyl, n-propyloxy, acetylamino, propionylamino, n-butyrylamino, p-phenyl.
Patent GB-110442-A (GB)
Title: Improvements in Devices for Securing Domestic Wringers to Kitchen Sinks or the like.
Inventor: WALKER JAMES
IPC: D06F45/00
Filed: 1916-12-07
Abstract: 110,442. Walker, J. Dec. 7, 1916. Wringers, attaching to sinks.-Devices for temporarily attaching domestic wingers to kitchen sinks &c. comprise flanged blocks or brackets e screwed to the edge and back of the sink and receiving the usual clamps g of the wringer. The brackets are preferably formed of metal side plates a, b and a wood centre c, and are preferably semicircular. They may be of cast metal, and may be secured to a horizontal or a vertical surface, as shown.
Patent GB-546302-A (GB)
Title: Improvements in and relating to the severing of metals by fusion
IPC: B22D31/00
Filed: 1941-10-20
Abstract: 546,302. Severing metals by electric heating. HIGH DUTY ALLOYS, Ltd., and HERON, J. A. Oct. 20, 1941, No. 17556. [Class 39 (iii)] [Also in Group XXII]  Magnesium and other light alloys are severed by passing a current through the workpiece and an electrode of high heat resistance held in contact with or near the workpiece so that the heat generated by the resistance or arc fuses the metal. A carbon electrode 1 is held in jaws 5, 6 hinged at 4 and pressed together by a spring 7 embedded in flexible hose 10. Cooling liquid is fed through passage 16 to a space 19 in the jaw 5, from which it passes by a parallel passage to hose 10 'and thence to a space 23 in the jaw 6 from which it is discharged through conduits 25, 26, 30. The handle carries an operating button 27 for a control solenoid from which control leads 31, 32 pass to a sheath 33 which may be outside or inside the hose 30. The conductor 15 supplying the electrode may be outside or inside the hose 13. The electrode may be duplicated so that the two electrodes may be traversed in relation to the workpiece, or a single electrode may be used, and the circuit completed through the workpiece. The tool may include means for feeding an inert gas, e.g. sulphur dioxide, or projecting a flame or jet on to the metal.
Patent GB-319233-A (GB)
Title: Improvement in holders for watches
IPC: G04B37/04
Filed: 1928-06-18
Abstract: 319,233. Schlacht, H. June 18, 1926. Watches, stands and holders for.-A watch holder comprises a container 1 open at one end, a member 4 carrying the watch and mounted telescopically in said container, and a member 14 movable longitudinally of itself and carrying a detent 19 which holds the member 4 closed into the container against spring pressure, so that when the member 14 is moved the member 4 is automatically ejected. The watch is mounted in the central aperture of a member 5, Fig. 7, which is mounted centrally between two spaced side plates 6 and 7, Fig. 3. Cylindrical lugs 12, 13 on the plate 5 coact with lugs 16, 17 on the plate 14 so that the plate 14 may be moved longitudinally on the pin 20 against the spring 21, the detent 19 moving into a recess 37 in the plate 5. In the closed position the detent 19 engages a hole 38 in the container wall 24 so that on depression of plate 14 the watch carrier is automatically projected by the spring 31. The plate 5 has extensions 23, 22, the narrowed portions 28, 29 of which take the slots 27 of plates 26, Fig. 11. At right-angles to these two plates 26 and extending across the plate 5 is a third plate 26, the closed end of its slot 27 being accommodated by the notch 32, Fig. 7. The groove 33 of this third plate accommodates a member having spring-projected pins the function of which is to prevent the carrier 4 from entirely leaving the container 1. This third plate 26 also closes the end of the container 1 when the carrier is projected. The first two plates 26, also on plate 5, slide within the container walls 24, 25 under the spring pressure 31. To make the casing watertight when closed, a recess 50 in the plate 14 is filled with rubber and contacts with the free edges of the container 1. In a modificition of the holding pins a bent piano wire on the movable carrier coaots with a lug on the container so that the carrier may ba readily removed entirely from the container by deforming the wire.
Patent GB-666918-A (GB)
Title: Power operated hoist
IPC: B66D1/20
Filed: 1949-07-04
Abstract: 666,918. Winches. NEALE, WRIGHT, & CO., Ltd., and NEALE, G. W. June 12, 1950. [July 4, 1949] No. 17574/49. Class 78 (v). A power-driven winch comprises a drum, a controllable mechanically connected clutch and brake, each of the expanding shoe type, the brake being released when the clutch is engaged and vice versa, and a normally engaged one-way acting safety brake which allows rotation of the drum when the clutch is engaged and which is released by the clutch and brake control when the latter is actuated to apply the controllable brake. An internal combustion engine 16 mounted on a wheeled frame 12 drives a shaft 20 through chain-and-sprocket gearing. A winding drum 21 is free on this shaft, but can be connected thereto by clutch shoes when they are expanded by an actuator 23. These shoes are connected to an anchor plate 22 carried by the shaft. Brake shoes attached to a fixed plate 25 are expanded by an actuator 26. The actuating means 29, 30 for the clutch and brake are connected bv a control rod 28. In one extreme position of this rod, the clutch is engaged and the brake released and in the other position the brake is on and the clutch released. In an intermediate position the clutch and brake are released. When the rod 28 is moved from the intermediate position to the position in which the clutch is released, a cam 36 mounted on it releases a one-way acting safety brake 32.
Patent GB-434043-A (GB)
Title: Improvements in mountings or fittings for blind rollers or the like
IPC: E06B9/50
Filed: 1934-06-14
Abstract: 434,043. Roller blinds. WOODWARD,. R. H., 23, Legge Lane, Birmingham. June 14, 1934, No. 17586. [Class 52 (v)] A blind roller 12 is secured at one end, Fig. 2, to a sheet metal angle bracket 5 by an end cap 13 having an integral tapered boss 15 which carries a bush 18 in which a pivot pin 10, riveted to the circular projecting end of the bracket 5, is journalled. The end of the bush 18 which may be of gun-metal is riveted over to hold a disc 17 so that the operating cord of the blind can be wound on the boss 15, a projection 38, pressed from the bracket 5 preventing the cord working into the space between the disc and the bracket 5. The other end of the roller 12 carries an end cap 21, Fig. 3, in which is riveted a pivot pin 28 carrying a ratchet wheel 31 and journalled in a cup shaped cap 20 and in strips 22, 23 of bronze or other bearing material riveted to the cap 20. The strip 23 slides in a slot 19 in a second angle bracket 6 while the strip 22, which is wider than 23, engages with the upper and lower outer edges of the slot 19 and is provided with a notch, a spring urged pawl 25, pivoted to the bracket 6, co-operating with this notch to hold the blind roller in place. The ratchet wheel 31 is provided with a pawl 32 pivoted to the cup 20 and is frictionally connected to the cup 21 by means of a plate spring 34 and a washer 35 anchored to 21. The roller 12 can be rotated freely in one direction but can only be rotated in the opposite direction against the frictional resistance produced by the washer 35 and spring 34. The bracket 6 is provided with an elongated hole for one screw to permit slight adjustment of its position without removing this screw. The end caps 13 and 21, the cap 20 and the brackets 5 and 6 are formed from sheet metal by a pressing or stamping operation. The angle brackets 5 and 6 may be provided with flanged edges and with pressed out ribs 11 for strengthening purposes.
Patent GB-255466-A (GB)
Title: Process for the manufacture of new diacylisothiourea-s-alkylethers
IPC: C07C335/38
Filed: 1926-07-14
Abstract: 255,466. Chemische Fabrik auf Actien, vorm. E. Schering. July 16, 1925, [Convention date]. Diacyl derivatives of isothiourea-S-alkylethers are prepared by treating a solution of an S-alkylisothiourea salt such as the hydrobromide, in a tertiary organic base with an acylchloride. Organic bases mentioned are pyridine, dimethylaniline and quinoline. Examples are given of the preparation of the dibenzoyl. di-p-nitrobenzoyl, diacetyl and dicarbethoxy derivatives of S-ethylisothiourea.
Patent GB-990871-A (GB)
Title: Improvements in or relating to load supporting platforms for example for upholsteredfurniture
Inventor: GRIMSHAW NORMAN
IPC: A47C7/22
Filed: 1961-05-16
Abstract: 990,871. Cushion supports. VITAFOAM Ltd. May 16, 1962 [May 16, 1961], No. 17730/61. Heading A4M. A cushion support comprises a unitary moulded sheet of resilient material having portions 14 which are thinner than the main load supporting portions 10, 11, 12 and include moulded-in metal reinforcing clips 15 of the form disclosed in Specification 904,979 by means of which the support is attached to an article of furniture. The support may be of rubber or plastics material.