baber/WOPTO huggingface dataset:
Patent GB-877742-A (GB)
Title: Autocycles with friction roller transmission
IPC: B62M25/00
Filed: 1960-02-12
Abstract: 877,742. Engine assisted bicycles. ATELIERS DE LA MOTOBECANE. Feb. 12, 1960 [Feb. 14, 1959], No. 5086/60. Classes 79(2) and 79(3). In a motor assisted bicycle in which a tyred wheel 9, Fig. 5 is driven by a friction roller 8, the drive from the engine, adjustably mounted on the lower frame bracket to allow adjustment of the tension of the driving Belt or chain, is transmitted by a trapezoidal belt 7 or chain to a pulley 6 rotatably mounted in bearings 18, 19 upon a shaft 5 which itself is rotatably mounted in bearings 14, 15 and carries the driving roller 8. The bearings 14, 15 are carried in a bifurcated member 16, 17, Drive from the pulley 6 is transmitted through a friction clutch 23, 24 normally held in the operative position by springs 27 and which may be disengaged by rotating a lever 38, controlled from the handlebars by a flexible cable,. mounted upon a threaded member 34 carried in a threaded socket in the member 17, the rotation moving the member 34 to the left and, through the thrust bearing 35, disengaging the clutch. In a modification, Figs. 6 and 7 a drum 52 carrying a friction member 55 is mounted on the roller shaft 5. The pulley 6 is mounted on a sleeve 57 which may be moved to the left on rotation of a member 58 by virtue of co-operation between a pin 61 and a slot 60 in the member 58 which is controlled through a lever 39 and flexible cable from the handlebars. Movement of pulley 6 to the left causes engagement of the clutch members 55 and 54 and vice versa. After a pedal start, beyond a certain speed, a centrifugal clutch is engaged. The latter comprises weights 48 pivoted at 49 and urged into disengagement by springs 53. When the spring resistance is overcome, the friction linings 50 on the weights bear against the drum 52. In a further modification, Fig. 8 a similar centrifugal clutch is provided, but in which pins attached to the weights 67 pass through holes 70 in the drum 52 and into slots 71 of a member 64, rotation of which can either isolate the clutch or allow it to operate. In addition a second centrifugal clutch responsive to the speed of the motor, replaces the clutch 54, 55 of the previous embodiment and comprises two centrifugal weights 72 resiliently fixed to the external surface of the drum 68. These weights allow restart without pedalling, when the machine is stopped, by simply opening the motor throttle.
Patent GB-124557-A (GB)
Title: Improvements in the Manufacture of Lampblack.
Inventor: HUTCHINS THOMAS WILLIAM STAINE
IPC: C09C1/48
Filed: 1918-03-22
Abstract: 124,557. Hutchins, T. W. S. March 22, 1918. Carbon.-Lampblack is prepared by subjecting a film of tar or oil picked up by a rotating disk a or the like from a vessel b to the heat of one.or more electric arcs. The are may be formed between an electrode c and the disk, or a pair of electrodes may be arranged so as to project an arc on to the periphery of the disk; a magnet may be employed to blow the arc on to the disk. The apparatus is enclosed in an air-tight casing f, the gas and lampblack being drawn off through a pipe h by a fan g or the like; the lampblack is separated by a filter i, part of the gas is returned to the casing f, and the excess is drawn off, either continuously or at intervals, through a valve j.
Patent GB-1458126-A (GB)
Title: Electron beam recording medium
IPC: G03C1/705
Filed: 1974-02-04
Abstract: 1458126 Purification of 2,4-bis(6-diazo-5,6- dihydro - 5 - oxo -1 - naphthalenesulphonyloxy)- benzophenone RCA CORPORATION 4 Feb 1974 [12 Feb 1973] 05118/74 Heading C2C [Also in Division G2] 2,4 - Bis(6 - diazo - 5,6 - dihydro - 5 - oxo- 1-naphthalenesulphonyloxy )benzophenone, pre - pared by the reaction of 2,4-dihydroxybenzophenone with at least 2 eqivalents of 2-diazo-1- naphthol-5-sulphonylchloride, is purified by dissolving the crude reaction product in a solvent which dissolves the desired product but does not dissolve certain undesired by-products, filtering of said by-products and precipitating the desired product by addition of a non- solvent therefor.
Patent GB-975505-A (GB)
Title: Improvements in or relating to methods of preparing casting moulds
IPC: B22C9/06
Filed: 1961-02-10
Abstract: Foundry moulds are made by spraying, by means of a metallization spray gun, a cermet on to a metal pattern plate, detaching the resultant crust from the pattern and supporting it as by backing with granular material, cement, &c. in a frame.  The crust may be formed of one layer of a cermet such as chromium and alumina, alumina content being 10-70% by volume of the whole. Alternatively the crust may be built up of a first layer of 82% Fe, 18% Cr with 25% of alumina or bauxite, a second layer of 80% Cr, 20% Mo, and a third layer of 82% Fe, 18% Cr.  Chromium oxide is formed on the first layer before casting as by heating the crust to 1200  DEG F. in a humid hydrogen atmosphere.  In another embodiment the first layer is a refractory oxide, e.g. alumina, the second layer is a cermet containing 66% Cr, 20% Mo, 14% Fe, and 20% by volume of the whole of alumina, and the third layer is 82% Fe, 18% Cr or other stainless ferrous alloy.  To increase heat conductivity the crusts may be coated with a thick sprayed-on layer of Cu or Al.  To decrease heat conductivity a layer of alumina or magnesia may be introduced between or externally of the layers of the crust.  The same mould may be treated to accelerate heat dissipation in some parts and retard it in other parts.  The mould face may be coated with a protective film of alumina, silica, silico-aluminate, graphite, lampblack, acetylene black &c.
Patent GB-747286-A (GB)
Title: Improvements in and relating to piston apparatus for discharging liquids
IPC: F02K9/50
Filed: 1954-02-22
Abstract: 747,286. Jet-propulsion plant; stuffing- box packing. VERWALTUNGSGES. DER WERKZEUGMASCHINENFABRIK OERLIKON. Feb. 22, 1954 [Feb. 28, 1953], No. 5155/54. Classes 110(3) and 122(5) [Also in Group XXVIII] Apparatus for simultaneously discharging two liquids under gaseous pressure comprises a cylindrical container 1, Fig. 1, containing compressed air and connected through a pressure-reducing valve 16 and pipes 17, 18 to concentrically arranged liquid containers 6, 7 mounting free annular pistons 13, 14 which on admittance of compressed air to the containers 6, 7 move rightwardly to simultaneously discharge the liquids through outlets 19, 20. For use in the liquid propulsion of rockets, the containers 6, 7 contain liquid fuel, e.g., activated paraffin, and an oxygen carrier, e.g., nitric acid, respectively, which on discharge to a combustion chamber spontaneously ignite. The container 1 is sealed against leakage by aluminium packing rings 5, Fig. 3, initially of rhombic crosssection housed between flanges of end closing plugs 2 and rings 3 screwed into the container and secured by ring nuts. 4. Internal pressure in the container 1 urges the plugs 2 outwardly to deform the rings 5 to a rectangular shape and so seal the container.
Patent GB-457188-A (GB)
Title: Printing device in rod cigarette-making machines
IPC: A24C5/20
Filed: 1935-02-19
Abstract: 457,188. Printing-surfaces. MINIKES, 1., 24, Amalienstrasze, Dresden, Germany. Feb. 19, 1935, No. 5293. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 20, 1935]. [Class 100 (ii)] A printing device ir machines for lettering covers for tobacco and particularly in cigarette making machines is pro vided with a printing plate in the form of a flexible foil e.g. a thin zinc etching As shown the plate a has a central hole g to engage a pin h on the printing cylinder and has flattenec ends c, d engaged by a clamp e secured by a screw f.
Patent GB-479640-A (GB)
Title: Improvements in apparatus for drafting slivers for the production of spun yarns
IPC: D01H5/88
Filed: 1937-02-22
Abstract: 479,640. Drawing-apparatus for spinning-machines. HONDA, K. Feb. 22, 1937, No. 5301. [Class 120 (ii)] In a drafting-apparatus the cradle 6, Fig. 1, for each drafting unit consists of separate upper and lower portions A, B detachably interlocked the upper drawing-rollers 1, 2, 3 being mounted on the upper portion A and each roller spindle being pressed downwardly by a spring 11, Fig. 3, provided thereon. The front C of the upper portion A carrying the front roller 1 is pivoted at 13 and pressed downwardly by a spring 16 while if desired the rear end D, Fig. 7, may also be separate from the main part A. The top and bottom portions A, B are interlocked by projections 9 on the part B engaging recesses 10. The disc 13 on which the front C is pivoted is adjustably secured to the portion A by a bolt 14 extending through a slot 15, Fig. 5, while levers 19 pivoted on pins 18 and connected together are provided to depress the part C so as to raise the top roller 1. In their lowered position, Fig. 1, the levers 19 cover the openings of the recesses 17 in which the top roller 1 rotates.
Patent GB-144587-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/08
Filed: 1920-02-21
Abstract: 144,587. Chambers, G. H. Feb. 21, 1920. Tobacco. pipes.-The stem d of the mouthpiece c is cut away at c and passes through a m o i s t u r e-collecting chamber a into the bowl stem b.
Patent GB-924783-A (GB)
Title: Device for lubricating crankshaft and connecting rod bearings by means of a lubricating pump
IPC: F16C3/14
Filed: 1961-02-14
Abstract: 924,783. Lubricators etc.; bearings &c. SVENSKA AEROPLANE A.B. Feb. 14, 1961 [Feb. 15, 1960], No. 5430/61. Classes 12 (1) and 12 (3). A device for supplying lubricant from a pressurized source (not shown) via ducts 24 and 25 to the crank-shaft 10 and connecting-rod bearing 6 of an internal-combustion engine or the like comprises an eccentric ring 26 with an oblique flange 27 the edge 40 of which is concentric with the crank-shaft axis. The ring 26 is located between and rotates with, the crank web 9 and the inner face of bearing 11. A seal is formed between the edge 40 of flange 27 and the outer bearing race 34 by means of a radially expanding sealing ring 29 located in annular groove 28 in the outer race 34. Lubricant passes through the bearing into the triangular annular pocket formed between ring 26 and flange 27. Through this ring at the farthest position from the crank-shaft axis is located hole 42 which connects the triangular pocket via tube 32 with the crank-pin bore 30 and thence through duct 31 to connecting-rod bearing 6. The sides of the bearings 11 and 12 remote from the crank webs 8 and 9 are sealed with stationary rings 14 and 15 in grooves 16 and 17 in the crank-case 13 engaging sealing rings 22 and 23 on the crank-shaft. In a modified arrangement the triangular annular pocket is divided into two separate symmetrical parts each with its own discharge hole which connects with parallel bores within the crank-pin and thus permits the supply of lubricant to two or more connecting-rod bearings on one crank-pin.
Patent GB-822954-A (GB)
Title: Improvements in sound insulating and absorbing panels
IPC: E04B1/74
Filed: 1957-02-18
Abstract: 822,954. Laminates; cellular cardboard &c. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A. Feb. 18, 1957 [Feb. 18, 1956], No. 5506/57. Classes 96 and 140. A sound-absorbing and insulating panel comprises cavity resonators responsive to different acoustic frequencies confined between a perforated front wall and a rear wall of the panel, both walls being made of sheet material, a series of mutually inclined transverse partitions of sheet material being provided between the walls to connect them and thereby to provide the said cavity resonators of a substantially trapezoidal or triangular cross-section in a parallel arrangement such that alternately small and great bases of the successive resonators are adjacent to the perforated front wall. As shown, the two walls 10 and 11 are connected by transverse partitions 12 of sheet material defining between the walls 10 and 11 a plurality of chambers A, B, C, D, &c. Holes 13 are provided in wall 10 through which sound waves can pass into the chambers. Alternate resonators A, C, &c. have their smaller bases next to the perforated wall; whilst the remaining resonators B, D, &c. have their greater bases next to the perforated wall and are packed with a filling 14 of glass wool. The holes 13 are arranged approximately uniformly, so that resonators B, D, &c. have more openings than resonators A, C, &c., and are therefore responsive to higher frequencies. In another embodiment (not shown) the partitions 12 are replaced by a corrugated sheet having the crests of the corrugations on both sides affixed, e.g. by welding, to the walls 10 and 11. The crests welded to wall 10 are perforated, the holes registering with holes 13 in wall 10. Here again is provided a row of substantially trapezoidal resonators alternately responsive to high and low frequencies, of which the former may be filled with glass wool. The sheet material of which the panels are made may be e.g. cardboard, aluminium or synthetic resin.
Patent GB-1383151-A (GB)
Title: Azo dyestuffs
IPC: C09B29/01
Filed: 1973-02-05
Abstract: 1383151 Dicyano aniline derivatives BAYER AG 5 Feb 1973 [5 Feb 1972] 5544/73 Heading C2C [Also in Division C4] 2,4 - Dicyano - 3,5 - dimethyl - 6 - chloroaniline is prepared by treating 2,4-dicyano- 3,5-dimethylaniline in conc. acetic acid. with chlorine gas in the presence of Al 2 Cl 6 . 2,4-Dicyano - 3,5 - dimethyl - 6 - bromoaniline is prepared similarly by bromination. N-Acetyl- 2,4 - dicyano - 3,5 - dimethylaniline is prepared by acetylation of the aniline using acetic anhydride. 2,4-Dicyano-3,5-dimethyl-6-nitroaniline is 'prepared by nitration of the N-acetyl compound to give N-acetyl-2,4-dicyano-3,5-dimethyl-6-nitroaniline which is then hydrolysed to the free nitroaniline.
Patent GB-348235-A (GB)
Title: An unspillable accumulator for use in electric torches
IPC: H01M10/04
Filed: 1930-02-19
Abstract: 348,235. Galvanic batteries. NEVANAS, S. V., 72, Bartholomew Close, London. Feb. 19, 1930, No. 5546. [Class 53.] Cells; gas exits; connections.- An accumulator having a jelly electrolyte is provided with a chamber containing a material to absorb any liquid exuded from the electrolyte. In the form shown, the jelly M is kept in position by a perforated grid G above which is a partition F forming two chambers D, E. The chamber E collects liquid exuded from the electrolyte, and the chamber D is filled with glass wool which absorbs liquid passing through the gas vents which are arranged in the partition F and cover B. Connections to the accumulator are made at opposite ends A, K.
Patent GB-402387-A (GB)
Title: Improvements in or relating to devices for regulating circumferential velocities
IPC: G05D13/10
Filed: 1932-02-25
Abstract: 402,387. Maintaining defined speeds of motors. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin. Feb. 25, 1932, No. 5674. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 26, 1932]. [Class 38 (iii).] A device for maintaining constant speed of a motor wherein a torque is produced by the rotation of the motor and opposed by a spring of constant counterforce and movement of an element caused by the torque is employed to adjust carbon pile resistance in the motor field. The Figs. show the torque produced by an eddy current device in which magnets D are mounted upon the shaft A to be controlled and surround a disc F mounted upon a shaft B. A lever P connected to the shaft is loaded bv a constant counterforce such as a spring J and connected to a lever K acting through a toggle device K1 upon the carbon disc resistance L. A spring M and curved lever K2 are arranged to counteract the reaction force of the compressed column of carbon at every point.
Patent GB-613812-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H5/02
Filed: 1945-03-07
Abstract: 613,812. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., and BOURN, L. E. A. March 7, 1945, No. 5676. [Class 88 (ii)] In an electrical musical instrument in which the outputs of the generators are controlled by D.C. potentials applied by stops and keys, the potential applied by either alone is insufficient to produce an output, but when both are operative an output is obtained. As applied to an instrument in which the output from a generator, fed over a lead to point f, Fig. 1, is controlled by a thermionic valve 1, the battery 6 provides a negative potential just sufficient to bias the valve to cut-off, but when the stop contact 3 is in its lower undrawn position on contact 4, a further negative potential 7 is applied in series with this. When the stop alone is drawn, contact 3 engages contact 5 and the valve is still cut off by battery 6, but, if the key contact 2 is now closed, the potential applied to the grid is made sufficiently positive by the battery 10 for the valve to conduct. If, however, the key is depressed without the stop being drawn, batteries 7, 10 oppose each other and the valve remains cut off by battery 6. The resistances 8, 11 may be replaced by a variable potentiometer to obtain any desired loudness of tone from the stop. An extension of the circuit in which one generator is made to serve in response to depression of a plurality of keys and stops is described with reference to Fig. 2 (not shown). Specification 613,414 is referred to in the Provisional Specification.
Patent GB-723135-A (GB)
Title: Method and apparatus for washing and drying clothes
IPC: D06F58/30
Filed: 1952-03-05
Abstract: 723,135. Washing and drying machines. DODGE, C. B. March 5, 1952 [March 9, 1951], No. 5719/52. Class 138 (2). [Also in Group XIII] A washing and drying machine has a perforated drum 1 rotatable within an air-tight casing 13 provided with a pressure relief valve 38 and supplied with hot water through solenoid operated valve 39, the casing being evacuated by a pump 34 with resilient vanes 41. Clothes are placed in the drum with detergent or soap and the drum is closed by cover 18. Drain valve 36 is closed, the control mechanism is started and valve 39 opens to admit hot water the depth of which is controlled by a float 73 in pipe 72 operating a switch 74, and the drum is agitated. Valve 36 is opened and the dirty water drained by pump 34, the valve 36 being then closed and rinse water admitted through valve 39, this rinsing step being repeated as often as desired by suitable arrangement of cams in the controller. Hot air is then admitted to commence the drying process.
Patent GB-464001-A (GB)
Title: Means for determining color density of liquids
IPC: G01J1/24
Filed: 1936-02-26
Abstract: 464,001. Photometric apparatus. MARRIOTT, H. L. (Rose, H. W.) Feb. 26, 1936, No. 5822. [Class 40 (iii)] An apparatus for measuring the colour density of liquids comprises a lamp energizing simultaneously and directly a pair of spaced photo-voltaic cells connected in opposing series with an instrument indicating differences in the response of the cells, the liquid to be measured being placed between the lamp and one of the cells, and the illumination of the other cell being varied until the reading of the indicating instrument has been reduced to zero. The lamp 5 is disposed between the cells 11, 12 connected to a galvanometer 28, the cell 11 being contained in a case 14 carrying an adjustable diaphragm 49 and a cell 45 for the liquid. A variable aperture 21, Fig. 3, in a casing 15 admits light to the cell 12, the aperture being varied by a rotatable disc 40 on a shaft 30, the disc having a volute peripheral, Fig. 3, and the aperture 21 having a key-hole shape to give a uniform density scale 32 on the indicator 31. The scale is calibrated by the insertion of liquids of standard density before the cell 11. The liquid under examination is then placed before the cell 11 and the disc 40 is adjusted to give a zero reading of the galvanometer, the density being read directly from the scale 32.
Patent GB-641631-A (GB)
Title: Improvements relating to starting devices for electric discharge lamps
IPC: H05B41/06
Filed: 1948-02-26
Abstract: 641,631. Control systems for space discharge lamps. SIEMENS BROS. & CO., Ltd., GEE, F. G., and HARDMAN, T. K. Feb. 26, 1948, No. 5827. [Class 38 (iv)] [Also in Group XXXVII] In a starting arrangement for fluorescent lamps the contacts 3, 4 of a bimetal lock-out switch are maintained open by a shuntconnected heater 11 after they have been opend by a heater 1 on repeated failure of a bimetal starting switch 19, 20 to strike the lamp 15. The heater 11 maintains the contacts 3, 4 open until a main switch (not shown) is opened whereupon the contacts re-close. The lock-out switch may also function as the starting switch by arranging for its bimetal 3 to be rapidly heated by the heater 1. Should the lamp fail to strike after a few attempts, the heater 11 maintains the bimetal deflected and the contacts 3, 4 open.
Patent GB-1158011-A (GB)
Title: Improvements in or relating to apparatus and process for the preparation of Polymeric Materials
Inventor: ENGEL THOMAS PAUL
IPC: B29C48/365
Filed: 1967-02-07
Abstract: 1,158,011. Extruding cross-linked thermoplastic materials. T. ENGEL. 9 March, 1967 [14 March, 1966; 25 May, 1966; 28 Dec., 1966; 7 Feb., 1967], Nos. 11128/66, 22430/66, 57948/66 and 5833/67. Heading B5A. Shaped articles of cross-linked thermoplastics material are made by mixing a thermoplastic material with a cross-linking agent (and catalyst or filler), subjecting the mixture to high pressure in conditions such that cross-linking to high pressure in conditions such that cross-linking does not occur (inhibitor may also be present) and thereafter shaping the mixture e.g. by extrusion and causing or allowing crosslinking of the shaped material to occur e.g. by heating. Polyolefin, polyethylene terephthalate, phenol or resorcinol formaldehyde resins, polyvinyl halide or polyvinylidene halide are suitable thermoplastics, and an organic peroxide, e.g. dicumyl peroxide, the cross-linking agent. The catalyst may be chromium, methacrylic acid ester, triallyl-cyanurate, diallylphthalate or divinyl-benzene, and the filler talcum, china clay, carbon black or chalk. In Fig. 1, the pressure piston 11, adjustably resiliently held by ring springs 21, closes the outlet 14, and pressure applying piston 16 closes feed inlet 13 to apply pressures of up to 10,000 atmospheres to the mixture of thermoplastic material and crosslinking agent, thereby permitting heating of the mixture and distributing the agent whilst inhibiting cross-linking. At the appropriate pressure, the piston 11 gives way and uncovers the outlet to allow the material to flow to an extruder (Fig. 2, not shown) where the formed tube is heated to cause cross-linking before being wound flat. The cross-linking agent may be fed into the feed screw barrel of the thermoplastic material by pump or secondary feed screw (Figs. 4 and 5, not shown). The pressure chamber and the pistons may be heated.