baber/WOPTO huggingface dataset:
Patent GB-907353-A (GB)
Title: Improvements in or relating to mechanical presses
IPC: B30B15/14
Filed: 1959-01-27
Abstract: 907,353. Momentum power-storing apparatus. WALCHHUTTER, M. U. Jan. 27, 1959 [Jan. 29, 1958], No. 2927/59. Class 10. A mechanical friction press having a fixed cross-piece and bridge 1, 2 and a vertically reciprocable head 25 coupled to a flywheel 8 through a worm-screw 9 comprises a liquidfilled receptacle 10 having a gas cushion 10<SP>1</SP> for storing the kinetic energy of the hand and flywheel as potential energy during a part of the idling, i.e. upward, stroke of the head, and a cylinder and piston arrangement 5, 6, 7 for transmitting the stored energy as kinetic energy to the head and flywheel during part of the working, i.e. downward, stroke of the head and in which press the storage and transmission means are controlled electrically and automatically by the position of the head along its stroke. The flywheel 8 is friction driven by a motordriven disc 18 moved into and out of engagement with the wheel by the actuation of an electromagnet 24. The press is started with the head in the lowermost position and the flywheel is driven by the disc. The head 25 initially moves upwardly only against the force of gravity, liquid being pumped from the cylinder 5 by the upwardly moving piston 6 into an open vessel 12 having an electrically-controlled input valve 14. As the head nears the top of its stroke it closes a switch 27, thus closing the valve 14 and causing the liquid from the cylinder to pass to the receptacle 10 to compress the cushion 10<SP>1</SP>. The disc 18 is then automatically withdrawn from the wheel 8, the cushion 10<SP>1</SP> expanding to force the head downwardly. The energy stored in the cushion is converted into kinetic energy and the valve 14 is opened to allow liquid to pass from the vessel 12 to the cylinder 5. At the bottom of this working stroke the head effects re-energization of the magnet 24 to cause the flywheel to be driven. As the head rises once again, this drive is again disconnected, the head moving upwardly against gravity and the cushion 10<SP>1</SP>. When this movement is stopped the expanding cushion and gravity move the head down again to make a second working stroke. On again reaching lowermost position, the head has completed a working cycle which is automatically repeated until the press is shut down. In a modified press the piston 6 is caused to act against a mechanical resilient cushion such as a spring.
Patent GB-539583-A (GB)
Title: Improvements in or relating to variable speed gearing
IPC: F16H3/54
Filed: 1940-02-15
Abstract: 539,583. Variable-speed gearing. SALERNI, P. M. Feb. 15, 1940, No. 2934. [Class 80 (ii)] An epicyclic gear suitable for use with a hydraulic power transmitter has an annulus 1 fixed to a sleeve 1b passing through the sun 2. The gear members have helical teeth. The driver has dogs 4c, the driven member 7 has dogs 7c, the sun 2 and planet carrier 3 have dogs 2c, 3c, respectively, and the annulus has dogs 1c, 1c<1> Dogs 5c, 6c are provided on fixed parts of the apparatus or are connected thereto by Oldham couplings. Speed changes are obtained by sliding the train as a whole. As shown the train is in low gear. Movement of the train to the left gives a reverse drive. The gears may be locked solid, by means not shown, to give a direct drive. Specification 539,386 is referred to.
Patent GB-452977-A (GB)
Title: Improvements in and relating to the manufacture of packets of cigarette paper
IPC: A24F17/00
Filed: 1935-01-29
Abstract: 452,977. Feeding webs. STRAUS, H. H., 345, West 40th Street, New York, U.S.A. Jan. 29, 1935, No. 2952. [Class 1.00 (i)] [See also Group XVII] In a machine for making packets of cigarette papers, the tension on the web 14 of wrapping material is adjusted by means of a handle 79 on a shaft 77 having a worm 78 adapted to rotate a pinion 74 engaging a rack 73 attached to a cable 68. The cable is attached to a spring at one end of a brake band 65 lined with blocks 66 bearing on a brake drum 63. A pointer 75 is secured to the shaft of the pinion 74 in association with a stationary dial plate.
Patent GB-1110941-A (GB)
Title: Aquatic life-saving and amusement devices
IPC: B63C9/115
Filed: 1963-07-24
Abstract: 1,110,941. Life-saving apparel and propulsion means. A. WOZNIAK. 26 Oct., 1964 [24 July, 1963], No. 3008/63. Headings B7U and B7V. [Also in Division A6] A buoyant propulsion unit 2 for aquatic life-saving comprises a handle 15 and a buoyant member fastened thereto having a different shape on two opposite sides or faces, said unit being adapted to be moved through the water to provide a propelling action therein. The unit 2 may be of a buoyant foam material or be inflatable, e.g. formed of concentric tubes inflatable from a compressed air bottle or pump accommodated in the handle (Fig. 5, not shown). In Fig. 3 the person using the unit is wearing a buoyancy member 1 from which the unit is prevented from becoming disconnected by means of a cord 18. The handle may be angle-shaped for attachment to a person's fore arm (Fig. 6, not shown), or may have a handle so that the unit may be used by a canoeist.
Patent GB-671138-A (GB)
Title: Pulse-signal discriminating system
IPC: G01S1/02
Filed: 1950-02-06
Abstract: 671,138. Pulse discriminating circuits. HAZELTINE CORPORATION. Feb. 6, 1950 [March 26, 1949], No. 3020/50. Class 40 (vi). A pulse width discriminating circuit for discriminating against pulses at least a portion of each of which has a duration less than a predetermined value comprises a first repeater which passes only a portion of the undesired pulses and a second repeater which passes the desired pulses but is unresponsive to that portion of the undesired pulses passed by the first repeater. Fig. 1 shows a receiver for pulse modulated signals in which the output from the second detector 15 is fed via the discriminator stages 16, 17 to a utilization device 20. If the tuned circuits of the receiver have a mid-band frequency f 2  then the output of the detector 15 for pulses having carrier frequencies of f 1  and f which are progressively lower than f 2  and which are located at the edge of the pass band, Fig. 2 (not shown), will be as shown in the two left-hand 'wave-forms of Fig. 4, A, respectively, the wave-form for a pulse of carrier frequency f 2  being as shown in the right-hand drawing of Fig. 4, A. The output of detector 15 is applied to a D.C. restorer and slicing circuit comprising rectifier 22 and valve 21A which is normally biased to cut-off, this relates the peaks of the wave-forms of Fig. 4, A, to a reference level as shown in Fig. 4, B, the negative excursions (shown dotted) being removed by the action of rectifier 22. The grid voltage swing of valve 21A is limited in a positive direction by grid current flow so that a slicing action takes place and a wave-form as shown in Fig. 4, C, appears at the anode. This voltage is inverted and amplified in valve 21B to produce wave-forms across capacitor 30, as shown in Fig. 4, B. The voltage across capacitor 30 is applied directly to the control grid and via a delay network 32 to the suppressor grid of a coincidence valve 31 which is normally non-conductive. The delay introduced by network 32 is greater than the duration of any of the undesired pulses of Fig. 4, D, so that only during the presence of the desired right-hand pulse of Fig. 4, D, is the bias on both the control and suppressor grids of valve 31 removed to pass an output pulse to device 20. In a modification, Fig. 5 (not shown), the output of detector 15 is referred to a reference level by the use of a clamping circuit comprising a pair of reversely connected diodes.
Patent GB-684211-A (GB)
Title: Improvements in the means controlling the tensioning of the chain in bicycle and thelike chain shifting change speed gears
IPC: B62M9/127
Filed: 1951-02-07
Abstract: 684,211. Chain-shift change-speed gearing. JUY, L. C. H. Feb. 7, 1951 [July 11, 1950], No. 3023/51. Class 80 (ii). In chain shift change-speed gearing of the type in which a driving chain 6, Fig. 1, is alternatively engaged with either of two sprockets 7, 8 by the usual transverse reciprocating means, a pivotable spring urged arm 2 carries a first guide sprocket and a spring urged pivotable tensioning arm 5 on which is mounted a further guide sprocket, the spring means acting upon the tensioning arm 5 being controlled in such a way that alteration in the relative angular position of the arms 2, 5 occasioned by a change of speed does not affect the tension in the driving chain. The spring means acting on the tensioning arm 5 comprises a coil spring 4, Fig. 6, one end 4' of which is engaged in one or other of several notches in a cup shaped member 9 attached to the tensioning arm, while the other end 4<SP>2</SP> has secured to it a cable 13. The cable 13 lies in a groove in a rotatable pulley 10 and at 14 enters a sheath 15 through which passes also a cable 16, controlling the transverse reciprocating movement of the arm 5 in the normal way to change speed, the two cables being joined to a single control cable 17. When the chain shift mechanism is actuated, the cable 13 is simultaneously moved so that the variation of the tension in the spring 4 is automatically compensated, despite the alteration in the relaytive angular positions of the several parts. A stop 18, Fig. 1, is provided to limit the rearward travel of the carrier arm 2. Specifications 662,003 and 665,167 are referred to.
Patent GB-178933-A (GB)
Title: Improvements in locking devices for marking gauges
IPC: B25H7/04
Filed: 1921-01-24
Abstract: 178,933. Lester, J. Jan. 24, 1921. Tools for setting-out work. -A marking-gauge of the kind described in Specification 13810/05 in which the stock c is formed with a crosssection which is of a snail-like configuration and slides in a hole of the same shape but of slightly greater size in the handle or block a the two parts being adjustable and locked in the required position by a relative rotation, has the stock c constructed of uniform cross-section throughout its length, the section being a continuous spiral curve terminating abruptly in the stop e.
Patent GB-1293894-A (GB)
Title: Method and apparatus for filtering solids from moulds
Inventor: GOODMAN BRIAN LEWIS
IPC: B01D/
Filed: 1970-01-22
Abstract: 1293894 Filtration of liquids UNION TANK CAR CO 22 Jan 1970 [31 Jan 1969] 3178/70 Heading BID Liquid, e.g. sewage, supplied through pipe 24 to tank 10 reaches a level such that there is sufficient pressure for it to flow downwards through filter bed 18, which may comprise sand or anthracite, into underdrain compartment 22 and thence, via conduit 34, into tank 12; but when solids have collected in the filter bed and the level of liquid in the inlet compartment 20 has risen to a predetermined maximum level corresponding with a control sensor 52, the latter sends a signal whereby pump 40 is actuated and valve 36 is closed so that liquid flows from the underdrain compartment 22 into tank 12 at an increased rate and the liquid-level in the inlet compartment falls. When the level in compartment 20 reaches the predetermined minimum at sensor 54, the pump 40 is deactuated and valve 36 is opened. The filtered liquid is withdrawn from tank 12 by pump 44, and delivered through pipe 46. The cycle is repeated until the filter bed has collected sufficient solids to required backwashing, and this is initiated automatically by suction-sensor 57 which causes valve 25 in supply-pipe 24 to close. When the liquid-level in compartment 20 reaches the lower sensor 54, air is passed up through the filter bed by blower 58. Blower 58 is then shut off by a timer (not shown), and two-way valve 50 is adjusted so that filtered liquid is pumped through pipe 48, up through the filter bed, and out of compartment 20 through pipe 26. When tank 12 is empty, as indicated by sensor 56, the valves are readjusted and normal filtering operation is resumed. Sensors 52, 54 and 56 may be of the electrode type.
Patent GB-311840-A (GB)
Title: Improvements relating to radiators for hot-water heating systems for buildings
IPC: F28D1/02
Filed: 1928-10-16
Abstract: 311,840. Rennie, W. Oct. 16, 1928. Radiators.-A radiator for heating buildings is shaped as a skirting board and is provided with flow and return compartments 1, 2. An asbestos sheet 6 is inserted between the radiator and wall 7 and is turned over at 4 between the radiator and bead 5. The sections are connected by couplings 7' which are concealed by plates 9 slid into grooves formed in the adjacent sections.
Patent GB-100902-A (GB)
Title: Improvements in or relating to Pulling-over Machines.
IPC: A43D13/00
Filed: 1916-03-04
Abstract: 100,902. Gimson & Co., Mills, W. P., and Bagshaw, C. M. March 4, 1916. Lasting.-A device for supporting the margin of the sole or insole against the pull of the pincers in a pulling-over machine, such as is described in Specification 3876/14, and particularly for use at the toe in turn-shoe work, comprises a lip or plate 1 shaped to embrace the pincers 13 and adjustably connected to the forward ends of a pair of slides 2 movable within side plates 4 secured to the usual wiper 3. The slides are normally held in an advanced position by springs 8 attached to pins 7 projecting through slots in the plates 4, and each is supported in its plate 4 by projections 16, 17; the lower edge of each slide is also formed with an incline 19. In operation, the plate 1 supports the sole margin 15 during the stretching movement of the pincers, and when the pincer mechanism moves inwards for the overdraw, the lip 24 of the sole resists inward movement of the plate 1, causing it tc move backwards relatively to the wiper until the projections 16 clear the inclines 19, whereupon the plate 1 falls, or is moved by a spring, away from the sole until it is below the lip 24. The springs 8 then impel the slides 2 forward again, and the plate 1 afterwards moves in company with the wiper during the remainder of the overdraw and the wiping operation.
Patent GB-404812-A (GB)
Title: Improvements in and relating to dry rectifiers and methods of treating the same
IPC: H01L21/16
Filed: 1933-02-03
Abstract: 404,812. Static contact rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Harty, E. A. ; 8, Cypress Street, Marblehead, Massachusetts, U.S.A.) Feb. 3, 1933, No. 3361. Convention date, Feb. 6, 1932. [Class 37.] Copper oxide rectifiers are treated with acetic acid or acetic anhydride for removal of the cupric oxide and improvement of their working conditions. After forming, the rectify ing elements are immersed for eight to fifty hours in a solution of equal parts water and glacial acetic acid or acetic anhydride which may be maintained at boiling point, the solution preferably containing a small quantity of copper acetate. The Specification as open to inspection under Sect. 91 describes a construction of rectifier comprising an insulation housing 10, Fig. 3 (Cancelled), oxide discs 14 and lead plates 15 with insulating sleeves 16, the plates 15 engaging a slot 11 and being clamped with the discs 14 between end screws 12, 13. This subjectmatter does not appear in the Specification as accepted.
Patent GB-348108-A (GB)
Title: Improvements relating to pipes
IPC: F16L58/12
Filed: 1930-01-31
Abstract: <PICT:0348108/III/1> <PICT:0348108/III/2> In coating the external surface of a pipe it is rotated continuously on trunnions b, c, and the bituminous or similar coating material, poured from pipe j<1> is pressed out to the required thickness by roller j.  The pipe is moved longitudinally past the roller by the carriage d.  In a modification the pipe is first dipped whilst rotating in the bath r of coating material, is then raised for the strickle s to remove superfluous coating and is finally pressed against the rotating roller j<1>, which is kept wet by whitewash from the tank h<3>.  In a further modification the material is supplied by spraying.
Patent GB-729177-A (GB)
Title: Improvements in or relating to the smelting of tin
Inventor: WOODS STEPHEN ESSLEMONT
IPC: C22B25/00
Filed: 1953-02-06
Abstract: Tin ores are smelted in a blast furnace together with zinc ores or in the form of combined tin-zinc ores in the presence of sufficient sulphur to form stannous sulphide with the tin present and tin is recovered together with zinc from the vapour offtake of the furnace. Tin and zinc may be recovered together by condensation in molten lead or zinc, the stannous sulphide reverting to metal.  From the tin-zinc alloy produced the metals may be recovered by distillation. Specifications 572,961, 682,179, 686,542, and 726,530 are referred to.
Patent GB-547890-A (GB)
Title: Improvements in amplifier circuit arrangements
IPC: H03F1/36
Filed: 1941-03-13
Abstract: 547,890. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PRICE, T. H. March 13, 1941, No. 3444. [Class 40 (v)] A negative feedback amplifier particularly applicable to reducing the hum produced in a radio-transmitter by alternating current filament heating or by ripple in the anode supply comprises a balancing circuit arrangement having inputs from the source and from a feedback from the output each including a filter. The balancing circuit output is arranged to feed into the amplifier input a resultant which is combined with the signal input so as to reduce hum and distortion. Fig. 2 shows a balancing circuit comprising valves V1, V2 and filters comprising resistances R1 ... R4 and condensers C1 ... C4. The signal is fed to a preliminary amplifier VA output from which is applied to the grid of the valve V3 forming the input to the amplifier proper. The output from the balancing circuit instead of, as shown, being applied to the anode of the valve V3, may be fed to a second grid of the valve or to the grid of a parallel valve as shown in Fig. 4. In this arrangement the second amplifier stage is constituted by a radiotransmitter and a demodulator D is provided to feed modulation signal to the resistance r2 in the feedback circuit. Fig. 5 shows a modification in which the whole of the gain in valves V3, V4 is used to amplify the input signal and demodulation in appropriate phase is obtained from resistance r4, r5. A balance in the balancing network is secured when operation of switch S1 produces no change in the amplification. The balancing circuit instead of being a resistancecapacity combination may include other impedances or their equivalents, e.g. piezo-electric crystals.
Patent GB-361198-A (GB)
Title: Improvements in, or relating to toys
IPC: A63H11/04
Filed: 1931-02-03
Abstract: 361,198. Rope climbing toys. HOLMAN, C. G. B., 40, Clifton Road, Westonsuper-Mare. Feb. 3, 1931, No. 3446. [Class 132 (iii).] A climbing toy simulating a monkey, teddy bear, &c., or a man, has arms e pivoted at f to a body part b, the movement of the arms being restricted by stops, springs x tending to force the arms to the front horizontal position. Cords n, such as flax twine &c., anchored by means of resilient bands or springs o, pass through bent channels h in the hands g and, at their free ends, are held taut. By allowing one string to slacken off, the spring x of the corresponding arm will cause the hand g to move up the string, so that by tautening and slackening the strings alternately the figure climbs up the cords. The feet p may be weighted for stability, nails v being also provided for this purpose. The legs c may be pivoted at d or rigidly connected.
Patent GB-901624-A (GB)
Title: Depilatory paste composition
Filed: 1961-01-30
Abstract: A depilatory paste comprises at least 60% by weight of sugar together with glycerine, water and citric acid or a citric acid-containing substance, e.g. lemon juice.  Optionally, there may also be present sodium chloride and an antiseptic, e.g. boric acid.
Patent GB-122942-A (GB)
Title: Improvements in and relating to Canisters or Receptacles for Preserving Food and the like.
Inventor: BLYTH MEREDITH WYNTER
IPC: B65D53/06
Filed: 1918-02-28
Abstract: 122,942. Blyth, M. W., Miles, T. V., and freeman, R. Feb. 28, 1918. Closure completed by molten material.-In a canister or other receptacle for preserving food &c. and having a lid which fits either inside or outside the cylindrical neck of the receptacle, an annular channel is formed in the flange or fitting part of the lid, the neck of the receptacle, or both, and paraffin wax is placed in the channel and melted by the heated contents of the receptacle when the lid is closed, or by other means, and allowed to cool to seal the closure. As shown, the channels c are formed in both the flange of an internally fitting' lid b and the neck of the receptacle a for the reception of the paraffin wax. The channels may be rectangular in cross-section, as shown, or of semicircular or other form. According to the Provisional Specification, the channel may be formed in the upper edge or rim of the receptacle.
Patent GB-143192-A (GB)
Title: Improvements in fastenings for sliding-doors
IPC: E05B65/08
Filed: 1920-02-05
Abstract: 143,192. Schmidtbaur, J. Feb. 5, 1920 Fastenings for sliding doors; catches, spring.- A fastening for sliding doors provided with two catches for securing the door in the open and closed positions respectively is operated by handles pivoted on vertical spindles which release either catch when pressed in the appropriate direction. The follower b upon the handle b<1> operates directly the catches d, e, while the connexion from the follower c on the handle c<1> is made through links f, g, lugs i, k limiting the movement. The inside and outside handles may be mounted at different levels, the spindles being extended fcr the purpose. A locking-bolt passing between the two followers, and engaging recesses therein secures the fastening against operation. In a modification, Fig. 3, each follower has a single lug i, k, so arranged that one handle operates directly the catch d, the other, through a link g, the catch e while the link n couples the handles together.
Patent GB-758387-A (GB)
Title: A new carbon product and method for manufacturing the same
IPC: C01B31/08
Filed: 1954-02-08
Abstract: Carbon in the form of fibres which interlock to form an open reticulated structure is produced from peat or peat moss as free as possible from inorganic matter by disintegrating to produce a shredded, cut or torn product which will pass a seive of e.g. 60 mesh per linear which after reducing the water content to a suitable value for the disintegration e.g. 15-40 per cent, and carbonizing the disintegrated product in a retort at a temperature of 450-950 DEG C., preferably 800 DEG C. for a minimum period of 5 minutes.  Peat of the sphagnum type may be employed.  The carbonization also may be effected in a tunnel kiln and the peat passed through in covered boxes.  The combustible products driven off from the peat may be utilized to provide heat for the carbonization.  The product may be activated with steam.