baber/WOPTO huggingface dataset:
Patent GB-204320-A (GB)
Title: Keyboard musical instrument with electromagnetic operation
IPC: G10H3/12
Filed: 1923-09-13
Abstract: 204,320. Maitre, A. H., and Martin, V. H. G. Sept. 21, 1922, [Convention. date]. Electrically-vibrated instruments.-An electromagnetic keyboard instrument, wherein pulsations of current produced by an interrupter for each note are transmitted to one or more telephones, megaphones or the like, has also pianoforte strings or the like vibrated by means of electromagnets to which current pulsations are transmitted by the same interrupters. On depressing a key A, B, or C, current passes through an interrupter F and contact E<1> to a common telephone or telephones H<2>. and through a contact E<2> also operated by the interrupter to the appropriate electromagnet L vibrating a pianoforte string M. The interrupters F are preferably tuning-forks vibrated by electromagnets K. Rheostats R<2>, R', respectively in parallel with the telephone and in series with the piano-string electromagnets, enable the relative strengths of the sounds produced in the telephone and by the strings to be varied. The Specification as open to inspection under Sect. 91 (3) (a) comprises also other forms from which the electromagnetically vibrated strings are absent. The interrupters may consist of rotary contact distributors or of tuning-forks vibrated mechanically. The keys may be grouped and connected to different groups of telephones. The interrupters may each be connected to two separate telephones, the connections passing through the key-contacts of two separate keyboards. In Fig. 5 (Cancelled), the keyboard R, B, C is directly connected to the telephone H<2> through the interrupters. Depression of a key of a second keyboard A<1> B', C', to which the keys A, B, C are coupled, produces a fork effect by sounding two telephones H<1>, H<2> together. This subject-matter does not appear in the Specification as accepted.
Patent GB-909565-A (GB)
Title: Improvements in or relating to apparatus for transporting a lawn mower
IPC: A01D75/00
Filed: 1959-07-03
Abstract: 909,565. Hand trucks. PYE, D. R. M. Oct. 3, 1960 [July 3, 1959], No. 23001/59. Class 108(1). Apparatus which may be used to support a lawn mower having front and rear rollers or as a wheelbarrow, comprises a singlewheeled frame adjustably mounting a forward mower roller support 14, and a longitudinally and vertically adjustable cross frame padded abutment member 23 which may be engaged by lifting the mower by its handles so that the rear roller 24 engages and lifts the member 23 and permits the mower and apparatus to be wheeled off together. The frame removably mounts a padded grass box carrier 33, 34, and legs 9, 10 cross tied by a bar 11 and having feet 9a, 10a are also provided. In modification the grass box carrier is removed and replaced by a wheelbarrow body 39, Fig. 6, having side members 41, extending handles 40, and rear legs, the body being bolted through holes 36a, 36 to frame members 11, 37. In Fig. 5 (not shown) the member 23 is modified so that its cross member extends outwardly at the sides for engagement with side members of the mower.
Patent GB-408499-A (GB)
Title: Improved automatic machine for mixing, dividing and packeting powdered substances
IPC: B65B1/36
Filed: 1933-08-17
Abstract: 408,499. Delivering measured quantities of powders. PASQUALI, B., 36, Via XX Settembre, Genoa, Italy. Aug. 17, 1933, No. 23025. [Class 106 (v).] The machine mixes medicinal and like powders, and divides them into equal portions, which are enclosed in wrappers. The ingredients are placed in a funnel 1 and are mixed by a device 2. A slide 8 is moved to allow the contents to fall into a tube 8<1> which is graduated so that the amount is known and the number of packets to be made may be decided. Beneath the tube 8<1> is disposed a measuring device comprising a disc 9 having a series of pockets 91 of different capacities. The desired pocket is brought beneath the tube 8<1> by turning the disc manually. A two part closure 12 is opened to allow the powder to fall into the pocket, the bottom of which is temporarily closed by a closure 15. The closure 12 now shuts and the closure 15 opens, and the charge falls upon a paper web w which has been fed from a roll 28. The discharge of the powder may be assisted by a vibrator 74, Fig. 5, which is operated by a cam 75 to beat the plate 9 in timed relationship with the other operations. The machine may be set to make a certain number of packets, dependent upon the amount of material, and stop. A drum of insulating material is provided with a partial covering of thin sheet metal having a stepped edge. An indicator is arranged to contact with the sheet and to interrupt the machine drive when the predetermined number of packets has been made, the period of contact varying with the position of the indicator.
Patent GB-1419050-A (GB)
Title: Grinding machine
IPC: B24B47/14
Filed: 1974-05-23
Abstract: 1419050 Grinding machines ISE KOGYO KK 23 May 1974 [1 June 1973 (3)] 23142/74 Heading B3D A grinding machine for sharpening domestic knives &c., in which the grinding member or whetstone is driven by hydraulic pressure for example from a tap comprises a housing 10 in which is supported a shaft 14 to one end of which is secured the grinding member and to which is fixed thereto within the housing an impeller 18. The housing incorporates a nozzle 20 with a plurality of orifices 19 spaced radially inside the blades 17 of the impeller 18 and water under pressure is supplied via tube 22 to a pressure chamber 21 and from which water is discharged from the orifices on to the impeller blades 17 to rotate the shaft and grinding member 15. Means is also provided to exert an axial load on the shaft 14 to counteract the operative forces exerted on the grind member when in use. The means for exerting axial force on the shaft end is shown in Fig. 1 by an orifice 23 connecting the pressure chamber 21 with the end of the lower bearing 12 for the shaft a disc 24 and ball member 25 coaxial with the shaft transmit the fluid pressure from the pressure chamber to the end of the shaft 14. Fig. 3 (not shown) is a similar arrangement but in which a spacer (26) is inserted between the ball and the shaft end. Alternatively, the impeller blades may be angled downwardly and the orifices inclined upwardly to direct the jets of water upwardly and hence a compartment of the force is directed axially to support the shaft. In addition to the above in Fig. 6 (not shown) a spring is placed coaxial with the shaft in the bottom of the lower bearing housing 12.
Patent GB-688717-A (GB)
Title: Improvements in or relating to weight-relieving motions for drawing frames and like machinery
IPC: D01H5/48
Filed: 1950-09-21
Abstract: 688,717. Weighting arrangements for textile drawing &c. frames. T.M.M. (RESEARCH), Ltd., and PIERREPONT, D. Sept. 10, 1951 [Sept. 21, 1950], No. 23177/50. Classes 120(i), 120(ii) and 120(iii) A drawing frame or like textile machine is provided with a cam which when rotated raises and supparts the roller weights and is characterized in that the cam may be driven from a shaft continuously rotating independently of the rollers through the medium of a clutch mechanism. Bars 14, Fig. 1, pass through apertures 13 in the weights 12 provided at each end of each roller, and are engaged by a cam 15 provided at each end of the bars. Both cams are driven by a worm and wheel drive from a shaft 21 which is mechanically coupled to one part of a clutch 36, the other part of which is splined to a continuously rotating shaft 35. The clutch may be engaged and the cam rotated by depressing one arm 40 of a spring-controlled bell crank lever 37. A pointer 44 is provided to indicate the extent to which the weights have been raised. A separate manual control is provided by a handle 22 which may engage the shaft 21 through a spring-controlled dog clutch 24. Continued rotation of the cams beyond the position where the weights are raised to the maximum height enables the weights to be lowered. Means for stopping the production part of the machine may be actuated by the depression of the arm 40, or a bolt 46 which is raised bv a cam 45 attached to the same shaft 16 as the cam 15 may operate an electric contact (not shown) to stop the production part of the machine. In its raised position the bolt 46 may engage the setting on bar 48 to prevent this part of the machine being restarted whilst the rollers are raised. Specification 131,863, [Class 120(ii)], is referred to.
Patent GB-220823-A (GB)
Title: Improvements in or relating to the production of lead oxide
IPC: C01G21/06
Filed: 1923-09-17
Abstract: 220,823. Price, G. B., and Quirk, Barton, & Co., Ltd. Sept. 17, 1923. Filtering; dust &c., separating from air.-In a process for the production of litharge in a pan 1, the fumes pass to a separating chamber 13 having vertical baffles 14, 15 which arrest metallic particles and direct them down a flue 16 where they collect upon a weighted cone valve 17, and, when of sufficient weight, depress the valve and re-enter the pan 1. The oxide fume is passed by means of a cold air jet 19 through a flue 20 to a settling chamber 21, air being injected by a fan 22 at a point near the settling chamber. Lead oxide collects upon a weighted valve 26 at the bottom of the settling chamber and discharges into a container 27. The suspended lead oxide passes with the exit gas by a pipe 23 to a fabric balloon 24 which is pervious to gas but not to solid particles, and finally collects upon a spring-controlled valve 25 which returns it to the settling chamber. Specifications 30354/10, 30355/10, and 6002/12, [all in Class 1 (iii), Oxides &c., Metallic], are referred to.
Patent GB-754610-A (GB)
Title: Apparatus for cutting a continuous length of fibrous material into lengths
IPC: D01G1/04
Filed: 1954-08-10
Abstract: 754,610. Stapling fibres. TURNER MACHINE CO., Inc. Aug. 10, 1954 [Aug. 26, 1953], No. 23252/54. Class 120 (3). In cutting a continuous length or lengths of fibrous or like material, e.g. a tow of glass filaments, into staple lengths, each length of material is fed by a pair of driven rollers to a confined passage through which it is passed by the action of fluid jets at the inlet and outlet thereof, and on emerging is severed by the interaction of a rotary cutter and a stationary shearing plate; the ratio between the speeds of the feed rollers and the cutter speed is variable to enable variation in the staple lengths. In the operation of the apparatus shown, tows are inserted between a feed roller 37 and a pressure roller 67 having a surfacing of resilient material 68, and threaded through passages 76, 77, tubes 78, 79 and outlet passages 25, 26, extending through discs 17, 18, 19, comprising a cutting head. An electric switch is closed to energize a solenoid causing a yoke 51 of a toggle mechanism to be drawn downwardly and move a clutch collar 40 to engage a clutch cone 41 with a conical part 42 of a pulley 44 and transmit a continuous rotary drive from a shaft 15 of a variablespeed motor 16 to the roller 37, the speed of which relative to the speed of the shaft 15, and consequently the staple length of fibre, may be adjusted by altering the position of a driving belt 29 on a variable pulley 28 by means of a handwheel 34 controlling the position of an idler pulley 30. As the tows are fed through the passages they are subjected to successive blasts of air by jets 83a and 84a, 85, which are connected to air pipes 81 and 86 each of which may provided with a control valve and/or a pressure meter. The filaments emerging from passages 25, 26, at the face of the fixed disc 19 are sheared by blades of a rotary cutter 20 which is held in shearing contact with the disc 19 by a spring 22 pressed plate 21 ; additional apertures provided on the disc 19 permit shifting thereof as wear occurs around the two apertures in use. In order to arrest the feed of the filaments, the switch is opened to de-energize the solenoid and so free the clutch and also to allow a spring- pressed brake-shoe to be applied to the clutch cone 41, Fig. 2 (not shown), so that rotation of the roller 37 ceases abruptly and no short length fibres are cut.
Patent GB-495732-A (GB)
Title: Improvements in or relating to cathode ray tuning indicators
IPC: H01J31/14
Filed: 1937-08-25
Abstract: 495,732. Discharge apparatus. M-O VALVE CO., Ltd., BENJAMIN, M., and SMITH, H. S. Aug. 25, 1937, No. 23298. [Class 39 (i)] A tuning indicator comprises a conical anode 3 coated with luminescent material on part of its interior surface, a conical or cylindrical cathode 2 coaxial with and within the anode, the length of the cathode parallel to the axis being much less than the length parallel to the axis of the coated part, and a control electrode 4 in the form of a ring coaxial with the anode, wider than the cathode and preferably displaced towards the narrow end of the anode. As shown the control ring projects just within the narrow end of the cone 3. The indicator is associated with a triode portion, the anode 5 being connected to the control electrode and through a resistance 7 to the anode 3 and a positive potential. When a signal is applied to the control grid 6 the current through 7 increases, the ring 4 becomes less positive relatively to the cathode 2 and the annular fluorescent portion expands. The narrow band of emissive material may be contained in an annular groove in the cathode core or confined between two bands of nickel ; preferably it is applied with a draughtsman's pen.
Patent GB-152849-A (GB)
Title: Improvement to wooden latches for cottage doors
Filed: 1919-09-24
Abstract: 152,849. Smith, J. H. W. Sept. 24,1919. Latches, lift and thumb.-In a door latch made of wood, the latch B, working in a keep E on the door and engaging with a catch on the door frame, is operated by a T-shaped trip A, the head of which is provided with curved surfaces which roll on the outside face of the door. The trip is retained in its slot through the door by means of a triangular handle piece C, attached to the door after the trip has been placed in its slot.
Patent GB-754988-A (GB)
Title: Cam assembly
IPC: B41F31/15
Filed: 1954-08-13
Abstract: 754,988. Converting rotary into reciprocating motion. LEVEY CO., Inc., F. H. Aug. 13, 1954 [Dec. 2, 1953], No. 23583/54. Class 80(1) [Also in Group XVI] In mechanism for axially reciprocating or vibrating a shaft, e.g. the shaft of an inking roller of a printing press a driven shaft is parallel to the axially movable shaft, a cylindrical member is mounted at one end of each shaft, that on the driven shaft being rotated thereby and that on the axially movable shaft being rotatable thereon. co-operating groove- and-ridge cam members extend round the peripheries of the cylindrical members each in the form of a single- or multi-cycle sine wave graph wrapped therearound, and the cylindrical members have coaxial intermeshing gears one at least of which is adapted to be rotated independently of its cylindrical member (to adjust the amplitude of vibration) and to be locked thereto in operation. In an inktrain in which the ink path from a fountain roller via a ductor distributing drum and rubber-covered roller is divided on its way to the forme-inking rollers into two paths each consisting of a pair of steel rollers connected by a rubber roller, the four steel rollers, such as roller 8, are arranged equidistantly from a non-vibratory shaft 14 continuously driven through bevel gearing 19; a wide gear 18a driving the shaft 21 of each steel roller through a gear 27 allows for the required vibration. A pinion 30 engages planet gears 31 within a fixed internal gear 32. thus driving at reduced speed a cylindrical member 29 carrying the planet shafts 31a; the member 29 and a similar member 40 are rotatable but not longitudinally movable on the shafts 14, 21, and are connected (a) by sine wave groove-and-ridge cams 37, 46 and (b) by 1:1 gears 34, 41 rotatable on the members 29. 40 but locked thereto by manually retractable spring pins 36, 42 which may be engaged with any of a series of indentations therein. As shown the setting is for maximum vibration amplitude, but if one of the pins 36. 42 is withdrawn and its gear is adjusted relative to the member 29 or 40 on which it is mounted, the vibration amplitude will be reduced; if the amplitude of the two sine wave cams 37, 46 is identical the vibration at 180 degrees adjustment will he zero. A reverse arrangement of cam and gear similar to 37 34 (to be driven by the cam and gear 46. 41) may be applied to the shaft of another roller, such as one of those connecting the pairs of steel rollers (Fig. 3, not shown); in this case the shaft about which the cam and gear rotate may be separate from the roller shaft and have a lateral groove engaged by the rim of a headed member on the end of the roller shaft, to transmit the vibratory motion while allowing rotation of the roller shaft and adjustment at right angles thereto (e.g. in eccentric bearings) to vary the pressure between the rollers.
Patent GB-469214-A (GB)
Title: Improvements in wave transmission systems and variable equalizers therefor
IPC: H04B3/14
Filed: 1936-08-28
Abstract: 469,214. Volume control. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.) Aug. 28, 1936, No. 23645. [Class 40 (iv)] [Also in Group XL] A network for equalizing attenuation is associated with a potentiometer or bridge whereby the output energy of the attenuator is combined with a fraction of the difference between the output and the input energies. The embodiments described differ in respect of the amount of flat loss, or attenuation independent of frequency, which they produce. In a multiplex carrier telegraph or telephone system comprising an equalizer E, which may be of the kind described in Specification 202,284, [Class 40 (iv)], and may compensate for attenuation-variations such as those due to temperature or weather, the input voltage V1 and output voltage V3 of the attenuator E are applied to opposite ends of a potentiometer X, Y, and a variable fraction of the difference (V1-V3), added to the equalizer output voltage V3, is applied to the output amplifier A. In a modification., Fig. la (not shown), a condenser potentiometer replaces the resistance potentiometer XY. The potentiometer may be adjusted manually or by automatic means 16 controlled by a pilot wire. Instead of a valve, a balanced bridge B may be used, Fig. 2. The total output of an attenuator N1 having inverse arms Z1, Z2 is applied through a transformer T2 to one diagonal of the bridge, while a voltage derived from a potentiometer R1, R2 shunted upon one arm Z1, is applied through a transformer T1 to the other diagonal of the bridge. The bridge being balanced there is no reaction between the sources of potential. The outgoing line ZL forms one arm of the bridge and receives a combination of the two applied voltages. The impedances of the system are matched to the resistances of the lines. In a modification, Fig. 3 (not shown), the transformer T2 is replaced by a conductive connection. In a further modification, Fig. 4 (not shown), the potentiometer R1, R2 may, be in series with the arm Z2 instead of being in shunt with the arm Z 1. Alternatively, a differential transformer may be employed, the potentiometer R1, R2 being either in series with the impedance Z2, Fig. 6 (not shown), or in shunt with the impedance Z1, Fig. 5 (not shown), so that the flat loss is eliminated.
Patent GB-197252-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D29/02
Filed: 1922-08-31
Abstract: 197,252. Whitcher, E. J. Aug. 31, 1922. Bodies; tipping-carts.-In a cart such as is used for agricultural purposes and provided with hinged sides b, Fig. 2, secured in vertical or horizontal position by hinged struts, the lower ends of the struts f are received in hinged guides h through which they can slide and in which they are adjustable by pins k inserted through holes in the guides and struts. The upper ends of the struts are pivoted at g to angle-iron brackets @ fixed to the sides b and the lower ends of the brackets e are,so shaped that when the sides are lowered the ends abut against fitments i on the bed timbers a' of the cart and are supported against lateral movement by engaging flanges on these fitments on which the guides h are pivoted. The head and tail boards of the cart are removable. and when the cart has its sides b lowered for use as a harvest cart, the head board is replaced by a harvest ladder d. Similar hinged strut apparatus may be provided for use in tip. ping the cart, the strut f, Fig. 5, being hinged to angle irons e on the bottom a of the body and co-operating with the guides h hinged to fitments i on the shaft cross-piece. Either a single pin k or two pins placed one on each side of the guide h may be employed.
Patent GB-406338-A (GB)
Title: Improvements in vinyl resins and in processes for producing the same
IPC: C08F14/06
Filed: 1932-08-24
Abstract: Resinous products, a preponderating proportion of which is insoluble in toluene, are manufactured by polymerizing one or more vinyl compounds by heat, at a temperature not exceeding 40 DEG  C., in the presence of a known polymerizing catalyst and of a liquid medium, other than a reactant, of the group consisting of aliphatic alcohols, aliphatic hydrocarbons, aliphatic ketones and aromatic hydrocarbons. Alternatively in conjointly polymerizing vinyl compounds one of which is a vinyl halide, the polymerization is stopped while unpolymerized vinyl halide is present, this unpolymerized vinyl halide taking the place of the liquid medium. In this case the reaction is carried out under increased pressure sufficient to ensure the vinyl halide being in the liquid state. In examples: (1) a mixture of vinyl chloride and acetate is heated to 40 DEG  C. in an autoclave in hexane solution in the presence of benzoyl peroxide; (2) as in (1), but using methanol as the liquid medium; (3) as in (1) using acetone as the liquid medium, the resin being precipitated by pouring the product into pentane; a comparative experiment at 70 DEG  C. is described; (4) a mixture of 80 per cent vinyl chloride and 20 per cent vinyl acetate is heated to 27--30 DEG  C. in an autoclave in the presence of benzoyl peroxide, part of the vinyl chloride remaining unpolymerized. The polymerization of single vinyl compounds, especially vinyl halides, e.g. vinyl chloride, is also referred to.  Other liquid media specified are: ethanol, pentane, toluene and xylene. Specification 388,309 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of liquid media, having substantially no greater solvent power than acetylene tetrachloride for the products, additional liquids specified being aliphatic esters, e.g. ethyl or butyl acetate, and chlorinated hydrocarbons, e.g. ethylene and propylene dichlorides, chlorobenzene and acetylene tetrachloride. The temperatures employed are below 60 DEG  C.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 313,569, 319,587, [both in Class 2 (iii)], and 366,897.