baber/WOPTO huggingface dataset:
Patent GB-215443-A (GB)
Title: Improvements in or relating to sole moulding machines
IPC: A43D35/00
Filed: 1923-02-09
Abstract: 215,443. British United Shoe Machinery Co., Ltd., Woodcock, R. B., and Hope, E. Feb. 9, 1923. Sole blanks, machines for. - Relates to solemoulding machines of the type described in Specification 129,110, and consists in a clamp engaging the sole within the area thereof which is to be moulded, an end gauge displaced relatively to the moulds as these close together, and detail improvements. The sole to be moulded is positioned above the lower mould 2, Fig. 2, against an end gauge 18 provided with two gauging faces and movable about its pivot 21 when a half sole is to be moulded. A sole clamp 19 is slidable in a sleeve 25 pivoted at 26 to the slide carrying the lower mould. The pivot 26 also carries an arm 30 having a roll 33 engaging a cam 34 operated by a ratchet wheel 36. The shank of the clamp 19 also slidably engages within the rectangular end 28 of a rod. 29 provided with a spring 31 for allowing for different thicknesses or soles. When the sole is positioned, depression of a handle 20, Fig. 1, turns the ratchet wheel 36, Fig. 2, whereupon a raised part of the cam 34 depresses the clamp on to the sole. As the rear end of the shank of the clamp rises, it releases itself from a pin 62, and, simultaneously, pawls in the member 28 engage teeth on the shank and prevent it sliding. Further depression of the handle 20 raises one arm 71. Fig. 1, of a bell-crank lever, releasing a block 81 from a block 80 and allowing a rod 83 to descend and engage the clutch, starting the machine. The machine is automatically stopped by a cam 89 on the main shaft lifting an arm 78 to which is secured the block 80. When the machine starts, the lower mould-carrying slide moves first rearwardly, as described in the abovementioned prior Specification. To a segment 60 carried on this slide is secured a chair 61 fixed at its other end to the cross-head 6, which has only a vertical movement. Rotation of the segment 60 thus produced turns a gear segment 57, Fig. 2, retracting the gauge 18 so that this is clear of the moulds before they close. The clamp 19 remains in place, a slot 50 being provided in the upper mould. When the moulding operation is completed and the lower mould slides forwardly, the ratchet wheel 36 is again turned by a pin on an arm 47 to raise the clamp 19. In order that the automatic retraction of the gauge 18 shall not disturb its starting position as determined by the usual adjusting handle at the front of the machine, the segment 57 is yieldingly connected with the adjusting handle so that on the forward movement of the lower mould the gauge returns to adjusted position. The moulds are interchangeable, and the lower mould of each pair is provided with a projection 169 in alignment with a stop 69 on the gauge-carrying slide to prevent the gauge being positioned too far forward between the moulds. In addition to the automatic stop mechanism, the machine may be provided with a treadle, release of which stops the machine at any desired point.
Patent GB-597234-A (GB)
Title: Television scanning frequency generator
IPC: H04N5/12
Filed: 1945-02-15
Abstract: 597,234. Television systems. FARNSWORTH TELEVISION & RADIO CORPORATION. Feb. 15, 1945, No. 3864. Convention date, Nov. 18, 1943. [Class 40 (iii)] [Also in Group XXXV] In a television system employing interlaced scanning so that the line and feed scanning frequencies are not harmonically related, a scanning frequency generator oscillates at a sub-multiple frequency of the field scanning frequency, its output being distorted to generate harmonics which are then used to control means producing deflecting voltages at the line and field scanning frequencies. An oscillator comprising a valve 1 and a resistance-capacity network in which a triode 12 acts as a variable resistor, oscillates at a frequency of 30 c/s. The oscillator output is distorted by pentode 22 so that its harmonic content is high and it is then passed to high-frequency selector 69 and a low-frequency selector comprising a pentode 32 tuned by its associated resistancecapacity network to the field scanning frequency, in this instance 60 c/s. The pentode 32 selectively amplifies the 60 c/s. component of the input signal, the output being then mixed with a synchronizing voltage from the 60 c/s. A.C. supply in the diode 57. The diode output is applied to the grid of triode 12 so that should the phase relationship between the two signals applied to the diode alter the change in the grid voltage of triode 12 will cause the oscillator frequency to vary and thus cause the correct phase relationship to be maintained. The high-frequency selector may also comprise a circuit similar to that of the low-frequency circuit. The outputs from the selectors are then used to drive the horizontal and vertical scanning generators.
Patent GB-123737-A (GB)
Title: An Improved Blade Foot for the Blades of Gas and Steam Turbines.
IPC: F01D5/30
Filed: 1919-02-17
Abstract: 123,737. Akt.-Ges. Brown, Boveri, et Cie. Feb. 18, 1918, [Convention date]. Blades &c.-By a simple upsetting operation, a turbine blade is provided with a T-shaped foot, Figs. 1, 2, and 3, having its width a at any point bearing a constant ratio to the corresponding thickness b of the blade at that point. The lower shank portion of the blade may also be thickened on both sides or on the convex side only, the ratio of the width of the thickened portion at any point to the original thickness of the blade at that point being approximately constant. Figs. 7 and 8 show this thickening of the shank increasing outwards from the foot, together with spacing members.
Patent GB-942012-A (GB)
Title: Improvements in or relating to web spooling apparatus
IPC: B65H19/22
Filed: 1962-02-01
Abstract: 942,012. Winding webs. E. KUHME, and K. W. BRIEDEN, [trading as MASCRINENFABRIK KARL BRIEDEN & CO.]. Feb. 1, 1962 [Feb. 2, 1961], No. 3932/62. Heading B6B. By swivelling a pair of arms 8, the fully wound spool 1 is brought from the winding position against a winding cylinder 3 on to a pedestal 23 where a pair of guide ribs 22 are retracted by a pressure cylinder 21. An empty core 2, mounted between a pair of swivel arms 10 rotatably mounted about the shaft 13 of the cylinder 3, is swung counterclockwise round to the position shown in dotted lines, Fig. 7. In this position, a compression spring 12 urges the core 2 against the cylinder 3. A deflector 4 with freely rotating rollers 5 and 6, Fig. 4, tucks the leading edge of the web severed from the full spool 1, by a heated strip 7, into the nip between the core 2 and the cylinder 3.
Patent GB-848388-A (GB)
Title: Improvements in cutting tools
Inventor: CLAISSE ARNOLD JAMES
IPC: A61B17/32
Filed: 1959-02-04
Abstract: 848,388. Knives. GILLETTE INDUSTRIES Ltd. June 9, 1959 [Feb. 4, 1959], No. 3942/59. Class 30 [Also in Group VI] A knife, primarily for surgical use, has a sheath 8, over the cutting edge 3, which is joined to the handle 1 by a connection 12 which has to be broken in order to remove the sheath before the knife is used. Preferably the handle is moulded on to the tang 6, the blade being placed in the mould and the handle, sheath and connecting link then being formed in one piece, using a material such as polystyrene.
Patent GB-112855-A (GB)
Title: Improvements in Tires.
Inventor: PASCAL ISRAEL
IPC: B60C27/00
Filed: 1917-03-19
Abstract: 112,855. Pascal, I., Rosenthal, M. L., and Levee, B. March 19, 1917. Spring wheels with sectional outer guided members.-Metal tread blocks 8 spaced by bars 7 are adapted to bear, through a spring steel hoop 14, on a rubber or pneumatic cushion 6 seated within a built-up channel rim 2.
Patent GB-635236-A (GB)
Title: Improvements in or relating to electric amplifier circuits
IPC: H04N5/20
Filed: 1947-02-12
Abstract: 635,236. Television. NEWMAN, E. A. Feb. 12, 1947, No. 4031. [Class 40 (iii)] In an arrangement for amplifying electrical signals, such as television signals, control signals of constant amplitude are interspersed in the signals to be amplified, the mixed signals being fed to a cascade arrangement of a non-linear amplifier of adjustable non-linearity and a, variable-gain amplifier, the gain of which for signals of peak amplitude is rendered substantially independent of the adjustment of the characteristic of the former amplifier by means of a control voltage dependent on the amplitude difference of the control signals before and after amplification in the cascade' amplifier arrangement. An application of the invention to a television amplitier employing gamma control in which, as the gamma control is adjusted, the overall amplification remains constant for signals equal in amplitude to peak white is described with reference to Figs. 3 and 4, in which control signals from a source 8 comprising pulses 9 equal in amplitude to the peak white of the vision signals 10 derived from a source 6 are inserted in the vision signal waveform between successive line blanking periods 11 in a mixing device 7, the output from which is applied to a cascade arrangement of a gamma control amplifier 12 and a variable-gain linear amplifier 13. The output from mixer 7 (i.e. the input signals to amplifier 12) and the output signals from amplifier 13 are fed respectively to peak rectifiers 15 and 16, the outputs from which are compared in a bridge circuit 18 to produce a voltage which is applied to vary the gain of amplifier 13 so that as the gamma control is adjusted the overall amplification of the circuit remains constant for signals corresponding to the amplitude of the control signals, i.e. corresponding to the amplitude of peak white.
Patent GB-370103-A (GB)
Title: Improvements in or relating to hat-blocking presses
IPC: A42C1/04
Filed: 1931-02-09
Abstract: 370,103. Hat-blocking presses. CASS•, M., Essonnes, France. Feb. 9, 1931, No. 4058. Convention date, Feb. 10, 1930. [Class 63.] A hat-blocking press has a control lever which effects in succession the closing of the press, the locking of the press in closed position, the application of internal pressure, and the release of a device which restores the parts to starting position after a predetermined lapse of time. The lower mould 11 is guided by vertical columns 2, 2a which support the usual beam 3 carrying the pressing bag 7. The mould is raised and lowered by toggle links 17, 19 the pivots of which are linked to a head 24 of a piston 25, the head also carrying depending rods 27 supporting a sliding collar 28 loosely engaging the cylinder 26. A supply pipe 72 enters a box containing three valves 41, 43, 44, the first and last of which are spring-pressed. on to their seats and actuated by tappets 38, 39 on a lever 36 linked to the starting lever 31a. The valve 43 is actuated by a push rod 50 connected to a lever 51 also actuating valves 56, 57 in a second box also containing a valve 64. The lever 51 is actuated by the collar 28 as this reaches its uppermost position, a weight 53 urging the lever downwardly. To return the mechanism to starting position, a second cylinder 66 has a piston 67 the rod of which carries a spring plunger 70 in line with the end of the lever 36. The valves and cylinders are connected by pipes and ducts so that in operation, on the depression of the starting handle and consequent opening of the valve 41, water flows to the cylinder 26 causing the rise of the mould 11 and collar 28. When the links 17, 18 come into alignment the lever 51 is raised, opening the valve 43 to admit fluid to the bag 7. At the same time the valve 56 is opened to admit pressure fluid to the underside of the piston 67. The upper side of this piston is also under pressure transmitted by the pipe 79 in which is an adjustable valve 80. As the effective area of the upper side of the piston is smaller than that of the lower side, the piston rises at a rate determined by the setting of the valve 80. At the top of its travel, the plunger 70 returns the starting handle to inoperative position, opening the valve 44 to exhaust the cylinder 26 and allowing the inlet valve 41 to close. Pressure in the bag 7 is released by the valve 43. As the piston 25 commences to descend, the lever 51 allows the valve 56 to close, and opens the valve 57 allowing the piston 67 to descend. Work can then be changed and the press re-started. The starting handle comprises parallel levers 31a connected by a horizontal bar, In the working position this handle lies in front of the closing members of the press, preventing the operator putting his hands between these parts as they close.
Patent GB-378434-A (GB)
Title: Improvements in and relating to protective arrangements for electric systems
IPC: H02H3/14
Filed: 1931-02-10
Abstract: 378,434. Protective arrangements for supply systems and apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Palueff, K. K. ; 18, Laflin Terrace, Pittsfield, Massachusetts, U.S.A.) Feb. 10, 1931, No. 4160. Convention date, Feb. 10, 1930. [Class 38 (iv).] The neutral point of a system comprising an inductive winding or windings is connected to ground by parallel circuits comprising respectively an impedance and a non-inductive path such that for currents of the operating frequency the neutral is either effectively' isolated or grounded through a predetermined impedance by the former and is solidly earthed for transient oscillations by the latter, the passage to earth of current of normal operating frequency then being prevented. The first mentioned may be a condenser, an inductance or a resistance, and the second may consist of or include a resistance having a negative volt-ampere characteristic such as is described in Specification 292,110, [Class 38 (iv), Electric supply and transmission systems &c]. A spark gap set to break down at a voltage materially in excess of the highest operating frequency voltage of the neutral may be connected in series with the non- inductive path. The preferred arrangement is shown in the Figure, in which the neutral is connected to earth through parallel paths comprising respectively a condenser 28 and inductance 33 and a non-inductive resistance 30 in series with a spark gap 29. The invention is applicable to systems employing transformers of the type described in Specifications 173,606, 178,609. [both in Class 38 (iv), Electric supply and transmission systems &c.], and 350,520, having shielded or non-resisting windings 21.
Patent GB-809577-A (GB)
Title: Improvements in direct current generators with two or more external circuits substantially independent of one another
IPC: H02K23/36
Filed: 1957-02-07
Abstract: 809,577. Multi-output generators. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 7, 1957 [Feb. 11, 1956], No. 4201/57. Class 35. A generator has two or more pairs of poles and brushes, each pair of adjacent poles being excited independently of the other poles, the brushes corresponding to the pole pairs being connected to separate load circuits and the poles also carry opposing windings fed from the brushes, or single windings on the poles may be fed with opposing voltages. As shown, poles corresponding to brushes 5a, 5b have windings 6 energized by the difference between the voltage obtainable at divider 11 and that across the brushes 5a, 5b and a similar arrangement is provided for the other pole pair. Alternatively each pole would have a separately excited coil and an opposing coil connected across the corresponding brushes, i.e. 5a, 5b for the pole pair represented in the drawing.
Patent GB-465219-A (GB)
Title: Improved mechanical hand washing machine
IPC: D06F13/00
Filed: 1936-02-12
Abstract: 465,219. Washing-machines. McBRIDE, D. Feb. 12, 1936, No. 4218. [Class 138 (ii)] The shaft d of the agitator g of a washing- machine is provided with spiral grooves d4 with which engage spring-pressed balls h<1> housed in radial recesses in a nut f through which the shaft passes. The nut is rotatably mounted in a boss c secured to the washing-machine cover, and an operating lever a is secured to the nut whereby on oscillating the lever in a horizontal plane the shaft normally oscillates therewith and, when the agitator meets with obstruction, also moves axially to an extent limited by a washer d2 on the shaft below the nut and a knob d<1> above the nut. The agitator comprises three downwardly inclined blades of which the outer ends are semicircular or semi-elliptical in plan and convex upwardly in section, the edges of the blades being beaded, g<2>, Fig. 3.
Patent GB-631889-A (GB)
Title: Improvements in or relating to a method of and apparatus for assembling and calibrating thermostatic switches
IPC: H01H37/12
Filed: 1947-02-14
Abstract: 631,889. Temperature-responsive actuating-elements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1947, No. 4266. Convention date, Feb. 26, 1946. [Class 64(ii)] [Also in Groups XXII and XXXVII] In apparatus for simultaneously calibrating and'securing (see Group XXII) the bimetal member 28 of a thermostatic switch, e.g. of the kind disclosed in Specification 232,205, [Class 64(ii)], to a housing 10 carrying fixed contacts 22 co-acting with .moveable contacts on the bimetal member, means, viz a liquid bath (not shown) surrounding the switch, is provided for heating the bimetal member to the temperature at which it is required to be actuated, together with means for securing the bimetal member and progressively changing its contour until the switch is opened, the bimetal member having been so preformed that, having its initial contour it would be actuated to open the contacts 22, 26 at a temperature higher than the temperature at which the switch is required to operate. The opening of the switch arrests the operation of securing and changing of the contour. The switch assembly is supported by a sleeve 80 on an anvil head 90 upon which rests the head of a rivet 30 for securing the bimetal disc 28 to the housing 10. The anvil and switch assembly are raised until the end of the rivet is progressively peened over by a tool, e.g. a continuously reciprocating hammer 50, until the rivet and bimetal disc are so raised by the operation and the disc flattened against the housing 10 that it snaps over to the switch open position shown. In this manner a pair of contacts 94 are open-circuited and a solenoid (not shown) operated to lower the anvil and the switch being calibrated out of range of the riveting tool and to arrest the changing of the contour of the bimetal disc 28. The riveting action draws up a knurled portion 38 of the rivet shank into coaction with a washer 36 and thus secures the bimetallic disc to the housing.
Patent GB-176232-A (GB)
Title: Improvements relating to telescopic gasholders
IPC: F17B1/00
Filed: 1921-02-05
Abstract: 176,232. Dempster, Ltd., R. & J., Beard, G. F. H., and Scott, J. W. Feb. 5, 1921. Holders.-In telescopic gas holders, the cup portions of the holders are strengthened and retained in circular form by providing the bottom plates a<2>, b<2>, c<2>, Fig. 1, with continuous plates e which extend round the circumference of the holder, and are attached to it by means of vertical stays h provided with horizontal foot portions h<1>, with the edges of which the plates e above are capable of contacting when the lifts are down. In a modification, Fig. 3, the bottom plates of the cups are provided by the plates e themselves, angle-pieces a<3>, b<3>, c' being included for attachment of the plates e to the upright parts of the cups; the outer projecting ends e<1> of the plate may be mounted with wheels for making peripheral contact with the sides of the vertical stays h. In another modification the strengthening-plates are attached to the sheeting of the lift in close proximity to the bottom of the corresponding cup.
Patent GB-1476537-A (GB)
Title: Mixing particulate additives into thermoplastics polymers
IPC: C08L23/00
Filed: 1975-01-31
Abstract: 1476537 Mixing additives into thermoplastic polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 14 Jan 1976 [31 Jan 1975] 4290/75 Heading C3P A thermoplastic polymer obtained by a process producing polymer in a molten state is compounded with a particulate additive by (a) mixing the polymer in the form of a powder at least 95% of which is capable of passing through a 2,000 Ám sieve with the particulate additive in a rotary blade mixer with blade tip speed sufficient to fluidize the mixture and then (b) further mixing in an internal mixer. Examples relate to mixing ethylene polymers and copolymers with carbon black.
Patent GB-441352-A (GB)
Title: Device for securing and tensioning resilient spokes for wheels of the suspended hub type
IPC: B60B9/10
Filed: 1935-02-11
Abstract: 441,352. Vehicle wheels. RIMAILHO, E., 83, Avenue Foch, Paris. Feb. 11, 1935, No. 4311. Convention date, March 8, 1934. [Class 144 (i)] In a resilient wheel comprising a rim suspended from the wheel-centre by rubber rings mounted in tension on transverse pins &c., the rings are tensioned before assembly in the wheel. In the form shown in Fig. 1, the rings 16, strained between pins 3, 4 on the webs 2, 5 of the rim and wheel-centre, are assembled by preliminary extension on a device comprising a pair of channel-section guides 171, 181 and a wedge 19, Fig. 3. In the modification shown in Fig. 4, the tubular pins 3, 4 are engaged by lugs 23<a>, 27<a> on flanged members 23, 24 and 26, 27 of the rim and wheel-centre respectively, the rings 16 having been tensioned by removable wedge devices 42, 42<a>, 42<a>. In a further modification, the pins are forcibly separated to snap into slots in the rim and wheel-centre.
Patent GB-539162-A (GB)
Title: Improved method of and apparatus for interrupting electric circuits
IPC: H01H9/34
Filed: 1940-03-08
Abstract: 539,162. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 8, 1940, No. 4355. Convention date, March 11, 1939. [Class 38 (v)] In an arc-quenching structure of the general character disclosed in Specification 534,134, formation of a cathode-spot on the arcing plates 37, 41 is prevented by providing additional plates 33 of insulating material having slots 35 of less depth than the slots 25 in the series of plates 23, and spaced further from plates 37, 41 than the distance between the plates 23, the arrangement being that the arc-tips are moved rapidly up the plates 37, 41 while the intermediate arc-portions are held in the slot-ends, whereupon the arc restrikes across the shortest distance between the plates 37, 41 and the ends of slots 35 and the process is repeated, assisted by magnetic backing plates 47 for the plates 37, 41. The plates 33 prevent metal particles being carried into the intermediate arc-sections from the plates 37, 41, which are of large area so as to maintain a uniform electrostatic field of low intensity throughout the stack. The plates 23 may be of the materials disclosed in Specification 530,199. The contactstructure is as described in Specification 530,197 and the extension 39 of plate 37 is bifurcated.
Patent GB-543449-A (GB)
Title: Improved apparatus for heating or heating and drying fluid, granular, pulverulent or like mediums
IPC: F26B17/20
Filed: 1941-04-01
Abstract: 543,449. Heating fluids and fluid material by electricity. RYLE, T. April 1, 1941, No. 4368. [Class 39 (iii)] [Also in Group XIII] Granular, pulverulent or fluid material, particularly grain, is heated in a chamber A by electric heating elements L, Fig 3 (not shown) encased within the blades or vanes of a rotary conveyer or fan. The material may then be taken through a drying vessel B by a rotary conveyer and heated by hot air from an electric heater T and discharged through an outlet S. Air is drawn through the vessel B by an extractor W partly from the heater and partly from the outlet S. A similarly heated impeller or fan disposed in the chamber such as A connected to pipe lines may also impart heat to liquids and gases passing through the chamber.