baber/WOPTO huggingface dataset:
Patent GB-638929-A (GB)
Title: An electric musical instrument with vibratory strings
IPC: G10H3/18
Filed: 1947-08-12
Abstract: 638,929. Electrical musical instruments. MARTIN, C. Aug. 12, 1947, No. 22443. Convention date, Aug. 14, 1946. [Class 88 (ii)] [Also in Group XXXIX] In an electrical musical instrument, a soundproducing unit comprises a string AB of conducting material struck at C by a hammer 1 which closes the circuit through the part CB of the string, a pick-up coil 4 surrounding a magnetic core 5, a variable resistance 16, an amplifier 17, and a loudspeaker 18 which thus reproduces the vibrations of the part CB of the string AB. The circuit may also be closed by a switch I independent of the hammer 1. On the release of the hammer, which may be held against the string by a latch 8, the vibrations of the string are stopped by a damper 6 unless a secondary hammer 14 has been brought into contact with the string at C. The latch 8 and the secondary hammer 14 may each be controlled by a pedal or like means. A resonant string DE is provided with a retractable damper 19 and a pick-up and transducer system similar to that provided for the main string AB. In modifications, Figs. 2 and 3 (not shown), the string DE is arranged between the poles of a magnet and supplied with part of the output of the amplifier 17, or is placed in front of a loudspeaker receiving part of the said output. Several hammers may be placed at various points on the same string to provide different notes. It is stated that the fingers of the performer may be used instead of hammers.
Patent GB-696224-A (GB)
Title: Improvements in or relating to cabinets for radio apparatus
Inventor: PAGE FRANK RICHES
IPC: F16B12/50
Filed: 1950-09-12
Abstract: 696,224. Cabinets; joints. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 22, 1951 [Sept. 12, 1950], No. 22448/50 Classes 52(i) and 52(ii) The walls of cabinets are constituted by hollow sheet metal panels A having rigid metal stiffening inserts B adjacent their edges in which bolts C can be mounted whereby angle pieces D connecting the panels may be attached.
Patent GB-1093458-A (GB)
Title: Brake device
IPC: F16D65/22
Filed: 1965-05-26
Abstract: 1,093,458. Internal shoe drum brakes. WAGNER ELECTRIC CORPORATION. May 26, 1965 [Aug. 28. 1964], No. 22476/65. Heading F2E. In order to avoid distortion of the backing plate 13 of a duo-servo type internal shoe drum brake, during assembly of the brake on a vehicle steerable wheel axle unit 1 provided with spaced supporting surfaces 8 and 11, the backing plate is secured only to the surfaces 8, by bolts and nuts 15, and the anchor pin 26 is independently secured against the surface 11 by a bolt 35 and has a reduced diameter portion 29 which is engaged in a slot 18 in the backing plate, axial clearance being provided between the backing plate and the shoulders 30, 31 at the ends of the reduced portion. The slot 18 runs into a hole 17 of larger diameter than the width of the slot, which enables assembly and also provides for independent mounting of a wheel cylinder 20, by bolts 25 and a retaining plate 52. The latter extends to meet the reduced portion of the anchor pin and is shaped to fit the latter. The portions 57 of the plate on either side of the anchor pin may be pressed into an arcuate form and bear resiliently against the shoulder 31 (Figs. 6 and 7, not shown). The end of the anchor pin within the brake has reduced portions 37, 38 and 39 which respectively mount a pivoting anchor plate 40, having one flat face and one curved face for engagement with respective shoe ends of the primary and secondary shoes (43), (43a) (Fig. 1, not shown), a shoe retaining plate 42 having arms bearing on the webs of the shoes, and the ends of a pair of release springs 50, 50a the other ends of which are attached to the respective shoes. The usual hold-down devices (44), (44a) (Fig. 1) are provided to maintain the shoes in contact with the backing plate, and a screw adjuster (47) (Fig. 1) with associated spring (45) interconnect the shoe ends opposite to the anchor pin. Drum 4 comprises a rim portion and a disc portion, the latter being secured by rivets 5 to a hub 3 journalled on axle portion 2 of the unit 1.
Patent GB-420024-A (GB)
Title: Improvements in or relating to ironing and pressing boards
IPC: D06F81/12
Filed: 1933-08-11
Abstract: 420,024. Ironing - boards. WELLS, E. G., and HOKANSON, A. E., c/o X Chair Patents Co., Hayes, Middlesex. Aug. 11, 1933, No. 22480. [Class 138 (ii)] A sleeve board 16 is pivoted on a pin 17 to the underside of an ironing - table 13 which is supported by the pivoted legs 10, 11. The cross bar 15 forming the abutment for the upper ends of the legs 11, also limits the inward movement of the sleeve board. Outward movement of the sleeve board is limited by a bracket 21, a cranked extension 22 of which engages the underside of the sleeve board and helps to support same. According to the invention a spring-pressed detent 19 engages a depression 18 in the sleeve board when the latter is swung out to working position. Specification 384,596 is referred to.
Patent GB-426867-A (GB)
Title: Improvements in or relating to manifold writing devices
IPC: B41L5/00
Filed: 1933-10-11
Abstract: 426,867. Memorandum appliances. BLACK, H. D., The Island, Uxbridge, and WEBB, C. F., 24, Deane Way, Eastcote, both in Middlesex. Oct. 11, 1933, No. 22484. [Class 16] [See also Group XIX] A manifold-writing device for issuing forms, such as tickets, bills, and receipts, has means for rendering the feed-mechanism inoperative when pressure is applied to the form, as by the point of a pencil, in order to prevent damage to the forms. The forms and duplicates 3 pass from a feed-drum 2 over a supporting- plate 10 located beneath a writing-aperture 4, and one or more of the lower forms may extend over a guide-roller 5 to a winding-drum 6. The platform 10 is hinged at one side, and its free edge rests on a lever 13 supported by a locking- pawl 15, which is held up by a spring 17. The pressure of the pencil on the plate 10 depresses the pawl 15 into engagement with the teeth of a gear-wheel 9 attached to the drum 2, and thus locks the feed-mechanism. If the ejection of a form is obstructed, the consequent buckling of the form will also depress the plate 10 and arrest the feed.
Patent GB-421883-A (GB)
Title: Photo-holder
IPC: A47G1/14
Filed: 1934-08-03
Abstract: 421,883. Stands for photographs &c. JORGENSEN, V., (trading as DANIELSEN & CO., V.), 21, Kongens Nytorv, Copenhagen. Aug. 3, 1934, No. 22640. Convention date, Aug. 4, 1933. [Class 52 (v)] [See also Group XV] A photograph holder comprises a base-member a with a plane upper surface, an upright plate b disposed thereon and a flat case e of celluloid or other transparent material, trimmed plane at the bottom edge and pushed down over the plate so as to hold in position and protect a photograph placed in front of the plate. The plate b may be secured to the base by tongues pushed through slots in the base and turned over, or plate and base may be made from a single piece of metal.
Patent GB-486053-A (GB)
Title: Improvements in adjustable supports for cycle saddles and seats
IPC: B62K19/36
Filed: 1937-08-18
Abstract: 486,053. Saddle supports. JERRAM, W. A. Aug. 18, 1937, No. 22644. [Class 136 (iii)] In an adjustable support for cycle saddles and seats, of the spring-controlled telescopic type enabling the rider to adjust the height of the saddle while the cycle is being ridden, the inner or saddlesupporting tube 2 is retained in its adjusted position by means of a handactuated plunger 4, which selectively engages holes or indents in the inner tube and is formed integral with a spring clip 5, the arms of which are slotted at 8 to engage retaining-pins 7 projecting from the outer tube 1. The support may be mounted as a separable unit in the seat tube of the frame, or the outer tube may constitute the frame seat tube.
Patent GB-888053-A (GB)
Title: Apparatus for generating a feed motion in dependence upon another feed motion
IPC: B21F3/06
Filed: 1960-06-29
Abstract: 888,053. Cam mechanisms. SCHUMAG SCHUMACHER METALLWERKE G.m.b.H. June 29, 1960 [Oct. 28, 1959], No. 22814/60. Class 80 (3). [Also in Group XXII] Mechanism for feeding the bending roller 24 in a wire or tube winding machine comprises a horizontal slide 1, the motion of which is transmitted through a pivoted arm 4 and adjustably inclined surfaces 17, 18 to a follower roller 21 on a slide mounted in vertical guideways 20, 20<SP>1</SP> and carrying the roller 24. The arm 4, pivoted at one end, 5, to the slide 1, carries at its other end a roller 8 which engages the surface 18 on a member 14 which is pivotally mounted at 15 and adapted to be clamped in adjusted position by a screw 16. The surface 17 is on a member 10 which is pivotally mounted at 10 on the arm 4 and is adapted to be clamped in adjusted position by a screw 12. Scales 28, 31 facilitate the adjustment of the members 11, 14. The surfaces 17, 18 may be straight, as shown, curved, or stepped. A spring 23 maintains the rollers 21, 8 in contact with the surfaces 17, 18. The slide 1 carries a rack 34 which is engaged by a pinion 35 on a shaft 36 driven through a clutch 37. When the driving motion is interrupted, the slide is returned to its starting position by a spring 28.
Patent GB-932765-A (GB)
Title: Improvements relating to exhaust gas turbines
Inventor: CADEK OTTO
IPC: F02B37/00
Filed: 1960-06-29
Abstract: 932,765. Gas-turbine plant. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK. June 29, 1960, No. 22815/60. Class 110 (3). A plant comprises an internalcombustion engine and a turbine, exhaust gases from the engine passing into two or more chambers at different pressures, the pressure in each chamber remaining approximately constant, the gases from the chambers passing through separate ducts to different pressure stages of the turbine. The wall of the exhaust pipe or duct is provided with apertures which are controlled either by an automatic or by an engine-driven member, the apertures being arranged behind one another either in the direction of flow of the gas in the ease of automatically controlled apertures or in the direction of movement of the engine-driven member, and open into the individual chambers. In Fig. 1, the gases from the engine 1 discharge through exhaust valve 2 to the outlet duct 3, 4 from which they pass through outlets 5, 5<SP>1</SP>, 5<SP>11</SP>, controlled by non-return valves or flaps 6, 6<SP>1</SP>, 6<SP>11</SP> into separate chambers 9, 9<SP>1</SP>, 9<SP>11</SP> at different pressures. Exhaust gases from all the engine cylinders discharge into the chambers 9, 9<SP>1</SP>, 9<SP>11</SP> which are disposed in a common casing 7. The exhaust duct 4 also discharges into a silencer 11 which is open to atmosphere. Gases from the chambers 9, 9<SP>1</SP>, 9<SP>11</SP> at pressures P 1 , p 2 , p 3  respectively, flow through separate ducts to corresponding pressure stages of the turbine 20. In a second embodiment, Fig. 2, a rotary valve 15 having a diametrical bore 16 is disposed in the exhaust gas duct 3 leading from the engine cylinder and the valve distributes the exhaust gases into three separate chambers 9, 9<SP>1</SP>, 9<SP>11</SP> at three different pressures, the gases passing from the chambers to corresponding pressure stages of a turbine as in Fig. 1. In a third embodiment, Fig. 3, the exhaust valve is replaced by a reciprocating piston 15 and three outlets 5, 5<SP>1</SP>, 5<SP>11</SP> are controlled by the piston so that gases pass into the chambers 9, 9<SP>1</SP>, 9<SP>11</SP> at three different pressures. Non-return valves or flaps 6, 6<SP>1</SP>, 6<SP>11</SP> control the discharge from the outlets 5, 5<SP>1</SP>, 5<SP>11</SP>.
Patent GB-623751-A (GB)
Title: Improvements in or relating to signal seeking receiver for a.m. and f.m. signals
IPC: H03D5/00
Filed: 1946-07-31
Abstract: 623,751. Automatic tuning control in radio receivers. COLONIAL RADIO CORPORATION. July 31, 1946, No. 22836. Convention date, Aug. 8, 1945. [Class 40 (v)] In a receiver for A.M. or F.M. signals, in which an electric motor causes the tuning to scan the frequency range until a signal is received, final tuning is effected by a frequency controlling valve controlled by a voltage derived from a discriminator through a lowpass filter. The Figure shows a superheterodyne receiver, comprising a converter 15, an I.F. amplifier 21, an A.M. detector 30, a limiter 22 and a discriminator 26. The output of either the detector or the discriminator may be connected by switch 33 to an output circuit 35, 36. The aerial and oscillator inductors 13 and 16 of the converter are tuned by cores 14 and 17 adjusted by a cam 80 driven in one direction only by motor 40 and shaped so that when the tuning has reached the end of the range it rapidly returns to the beginning. When the circuit is switched on the motor is energized and the tuning is swept until a signal is received which produces a sufficient positive voltage across the discriminator load 27, 28 to cause a thyratron 50 to fire. The anode current of the thyratron operates a relay 44 which disconnects the motor at contact 42 and removes the earth from the control grid 60g at contact 43 to permit a reactor valve 60 to effect final tuning of the oscillator under the control of an A.F.C. voltage derived from the discriminator through a low-pass R.C. filter 54, 55, 56, which only accepts frequencies in the sub-audible range. To tune to a different frequency button 47a is momentarily depressed to extinguish the thyratron and release the relay. The motor then starts and revolves until the next signal is received.
Patent GB-1467036-A (GB)
Title: Method and apparatus for seismic surveying
IPC: G01V1/52
Filed: 1974-05-22
Abstract: 1467036 Seismic exploration AMOCO PRODUCTION CO 22 May 1974 [1 Oct 1973] 22918/74 Heading G1G [Also in Division G3]  A seismic source for subsurface use comprises a fluidic oscillator driven by liquid under pressure, the oscillator's fluidic circuit having an acoustic reactance which can be changed while the oscillator is operating, whereby the generated pressure pulse frequency is varied. The Fig. 2 embodiment is for use in a well and is suspended below a pipe string 28. The oscillator is defined by passages in members 35, 36. Liquid flow from inlet 41 and through throat 42 is switched alternately to outlet channels 43, 44 at a frequency determined by resonance of acoustic  reactance networks connected to the channels by ports 46, 47, 56, 59. The networks include vertical chambers 52, 53 acting as acoustic compliances, and conduits 50, 51, 54, 55, 57, 58 acting as acoustic inertances. Free pistons 63, 64 in the chambers are raised by fluid entering the chamber bases through valves 70, 70' when the source is operating, thereby reducing the chamber volume above the pistons and so increasing the generated frequency. Acoustic resistances 60, 61 ensure that the source frequency is essentially unaffected by the well cavity, but do not attenuate the source output unduly. Vertical propagation of the source energy is reduced by using rubber baffles 80-82 (or a Helmolty resonator) above, and possibly below the source. Modifications include varying the effective volume of chambers 52, 53 by pumping mercury into them instead of using the free pistons Figs. 4, 5 (not shown); or varying the acoustic inertances, rather than the compliances, by using a multi-way valve to connect different conduits in turn into the oscillator circuit Fig. 6 (not shown). Seismic surveying of the flanks of a salt dome is described Fig. 1 (not shown), using a vertical string of geophones in the or a second well, together with geophone arrays on the ground surface. Recorded geophone signals are cross-correlated with a representation of the varying-frequency source output. Repeated actuation of the source enables summing of records to enhance the signalto-noise ratio.
Patent GB-1456478-A (GB)
Title: Process for manufacturing a sealing glass
IPC: C03C8/24
Filed: 1975-05-23
Abstract: 1456478 Manufacturing a sealing glass INTERNATIONAL BUSINESS MACHINES CORP 23 May 1975 [5 Aug 1974] 22927/75 Heading C1M A sealing glass consisting essentially of (in weight per cent): PbO 66, B 2 O 3  14, SiO 2  2, Al 2 O 3  3À5, ZnO 10À5, CuO 2À5 and Bi 2 O 3  1À5; is made by (i) providing batch constituents in proportions suitable to form the said glass; (ii) heating the batch to melt it, while mixing, until the batch is at a temperature of 1080-1120‹ C.; (iii) maintaining the melt at said temperature for 3-3¢ hours; and (iv) cooling the melt until bubbling is inhibited (e.g. to 1060‹ C.). The batch materials may be melted in a platinum crucible. Preferably part of the batch is melted by heating to 750-850‹ C., and the melt held at this temperature while the balance of the batch is added in stages. After solidification of the melt, the glass formed may be annealed at 335‹ C. for about 15 minutes. The sealing glass is as described and claimed in Specification 1,421,510.
Patent GB-373859-A (GB)
Title: Friction gear for stepless changing the rotation of a driven shaft
IPC: F16H15/42
Filed: 1931-08-14
Abstract: 373,859. Variable speed gearing. HEYNAU, D. H., 16, Pantaleonsm³hlengasse, Cologne, Germany. Aug. 14, 1931, No. 22955. [Class 80 (ii).] Expanding-wheel gearing with twin conical tread wheels 3, 4 and 5, 6, is fitted with a roller 8 engaging the rims of the wheels to prevent bending strains. The wheels 3, 6 are shiftable axially by means of screwed sleeves 11 and nuts 12. The latter are toothed and engage wheels 16, Fig. 3, on a spindle 17 having a hand-wheel 18. In a modified form the roller 8 is not used, the ball races 9 of the wheels 5, 6 engaging directly the widened rims of the wheels 3, 4.
Patent GB-664467-A (GB)
Title: An improved silencer or muffler for internal combustion engine or like exhausts
IPC: F01N3/00
Filed: 1949-09-05
Abstract: 664,467. Exhaust-silencers. WALKER, G. B. June 30, 1950 [Sept. 5, 1949], No. 22955/49. Class 7(ii) An annular chamber 5, through which exhaust gases flow from end to end, progressively increases in cross-sectional area for substantially the whole length of a central core member 4 disposed in a casing 1, and vanes 7 impart a helical motion to the gases. The casing may increase in diameter from the inlet end 2 to the outlet end 3, and member 4 may be cylindrical, have a conical nose 6 to divide the gases into an annular stream and be supported in a spider 10 which has an opening 17 registering with slots in flanges 11. 12 of the casing, and an end member 13 to allow drainage of condensed water.
Patent GB-666815-A (GB)
Title: Improvements in or relating to machines for mixing, kneading, mincing and similar culinary purposes
IPC: B01F9/10
Filed: 1949-09-05
Abstract: 666,815. Mincers. LAMB, H. T. July 26, 1950 [Sept. 5, 1949], No. 22998/49. Class 28 (ii). [Also in Groups II and XXXV] In a mixing, kneading, &c. machine which can be up-ended and the mixing bowl 22 removed and replaced by a mincer unit, the driving mechanism is mounted on a base plate 1 and is covered by a removable casing 19. The reduction gear (worm drive 7-12 is additionally enclosed between a dished cover 17 and an annular plate 24 covering a dished recess formed by the rim 18 on the base 1. The driving motor is pivotable about 6 causing a tensioning of the belt 8, and restrained by a rubber strap 10. The shaft 13 of the worm wheel 12 terminates in a socket 15 rotating within a fixed sleeve 16 with reduced upper end 16a to receive the turned over end 15a of 15. A slotted spigot 21 fixed to the bottom of the bowl is in driving connection with the driven socket by means of a transverse pin 20. The bowl is provided with a stand in the form of an inverted dish 23 on which it can rest when removed from the machine. When a mixer attachment is to be used the machine is up-ended, the mincer casing is secured bv a screw 27 and the mixer shaft is coupled to the drive shaft.
Patent GB-1407710-A (GB)
Title: Electrical contact rivet
IPC: H01H11/04
Filed: 1973-05-15
Abstract: 1407710 Riveting; making electrical contacts; welding by pressure STANDARD TELEPHONES & CABLES Ltd 15 May 1973 23027/73 Headings B3U B3A and B3R [Also in Division H2] An electrical contact rivet is located in a strip material 5 by welding together two balls 1, 3 in an aperture 4 in the strip 5 smaller than the balls 1, 3 and shaping the welded-together balls to form rivet heads on either side of the strip 5. The balls 1, 3 of <SP>1</SP>/ 32  inch diameter are welded together by electrodes 2, 6 of a resistance welding machine within an aperture 4, of 0À025 inch diameter, in a beryllium-copper contact leaf spring 5 having a thickness of 0À005 inch. The balls may be of silver, gold, silver-palladium or gold plated silver or alternatively one ball may be of silver and the other of gold. The weldedtogether balls are then cold formed by dies to produce contact rivet heads 7 on each side of the strip 5.
Patent GB-1163254-A (GB)
Title: Soap Plodding
IPC: C11D13/18
Filed: 1968-05-15
Abstract: 1,163,254. Extrusion dies; extruding soap. COLGATE-PALMOLIVE CO. 15 May, 1968 [16 May, 1967], No. 23055/68. Heading B5A. The cross-sectional area of a continuously extruded bar of soap is adjusted to give a desired weight of soap per predetermined unit length of the extruded bar by the provision on a conventional soap plodder of an adjustable die mechanism 27. This mechanism comprises plates 28, 29 which together define an extrusion aperture 60, plate 28 being laterally movable relative to plate 29 which is fixed to the die head. The plates have overlapping portions 31, 32, Fig. 6, portions 32 of plate 28 having elongated slots 34 which co-operate with bolts 36 screwed into portions 31, see also Figs. 7 and 8 (not reproduced). Movement of plate 28 is effected by rotation of a knob 51, Fig. 5, having a shank 49 which threadingly engages a projection 45 fixed to the plate. A vernier scale (62), Figs. 1-3 (not shown), may be provided on knob 51 calibrated, e.g. in terms of soap volume or density. Plate 29 is fixed to a housing 19, Fig. 5, and the housing is provided with handles (22), Fig. 2 (not shown), to facilitate fitting of housing 19 to head (13) by means of bayonet connections (16, 17). Hot or cold fluid may be circulated in head (13).
Patent GB-1276278-A (GB)
Title: Frequency divider
IPC: H03K23/66
Filed: 1971-04-19
Abstract: 1276278 Frequency-dividers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [7 March 1970] 23083/71 Headings G4D D7X D6Y D6C1 and D6C2 A constant frequency from a source 1 is applied to a gate 2 and so to a counter 4 of capacity n, an output pulse at g triggering a monostable multivibrator 5 which cuts-off gate 2 for a time equal to j pulses, so effecting division by n + j. A circuit as described is used to control a TV oscillator 10, Fig. 5, the phases of outputs g, i  being compared at 8 to adjust the oscillator.
Patent GB-480532-A (GB)
Title: Improvements in and relating to television apparatus
IPC: H04N5/06
Filed: 1936-08-22
Abstract: 480,532. Television. BRITISH THOMSON-HOUSTON CO., Ltd., and EADE, S. R. Aug. 22, 1936, No. 23116. [Class 40 (iii)] Relates to television transmitting apparatus in which an image of a transverse line of the picture is projected by an optical system 3 on to a scanning disc 4 having radial slits spaced apart by a distance equal to the length of the line, the scanning beam falling on a cell 5. According to the invention, the radial slits are also used to produce line synchronizing impulses, light being projected from an auxiliary source 7 on to the disc so that it passes intermittently through the slits on to a second photo-electric cell 51. In the arrangement shown, the pictures to be transmitted are on a film 2, moved at a constant speed. An auxiliary path is provided through the system 3 for light from the source 7, and after passing through the slits this light is transmitted to the cell 5<1> by an optical system 8. A synchronizing impulse is thus produced each time a slit intercepts the auxiliary beam before the beginning of a line scan..