baber/WOPTO huggingface dataset:
Patent GB-700180-A (GB)
Title: Improvements in or relating to conveying apparatus
IPC: F26B15/10
Filed: 1950-10-19
Abstract: 700,180. Step-by-step conveyers. ROMER, A. Oct. 19, 1950 [June 2, 1949], No. 25484/50. Class 78 (1). A step-by-step conveying device has two groups of rotatable vertical bars provided with catches for supporting materials or carriers, the bars of one group at least being capable of vertical movement such that by the rotation of the bars before each step the catches of one group of bars are rotated into the carrying position and the catches of the other group are rotated out of the way, the bars of the conveying group return to their initial position after the materials or carriers have been taken over by the catches of the bars of the other group by means of further rotation of the bars. As shown in Fig. 1, vertical bars 3, 5 with catches 4, 6 respectively support carriers or containers 1c .. 1d within a drying chamber or the like. The bars are rotatable through 90 degrees to bring one or other set of catches under the containers. The bars 5 are reciprocated vertically to move the container through a step ; the bars 3 are stationary or may also be movable as the bars 5 to convey the containers. The operating mechanism and bearings are located outside the chamber. For loading and unloading the conveying device, horizontal or inclined conveying mechanism is used. The containers 1 are placed on stationary rails 7. Adjacent and slightly lower than the rails 7 are conveying rails 8 secured by rods 9a to driven cranks 9. As the rails 8 are moved, hooks 11 on the rails engage bolts 12 on rotatable star wheels 13 raising the rails 8 above the rails 7, conveying the containers forwardly and depositing them on the rails 7, the rails 8 then being lowered beneath the hooks 11 which slide idly over the bolts of the star wheels. In modifications, the rails may be carried by cranks at either end, the entire movement of which being transmitted to the rails, or the lift may be affected by hooks rotatably attached to the rails 8 and engaging stationary bearings.
Patent GB-725642-A (GB)
Title: Production of anhydrous formaldehyde
Filed: 1953-09-16
Abstract: Anhydrous formaldehyde is obtained continuously by contacting a current of hot trioxane vapour with a solid anhydrous catalyst comprising a non-volatile acidic substance at an elevated temperature.  The trioxane vapour is passed over a fixed catalyst bed or alternatively a fluidized bed of catalyst may be used, the catalyst in powder form being maintained in a fluidized form by a sufficiently high velocity of trioxane vapour.  The temperature is variable but is below 240 DEG  C. to avoid decomposition and side reactions.  Suitable catalysts are acidic ion-exchange resins; sulphonated coal or wood; copper pyrophosphate; boric acid; phosphoric acid; potassium hydrogen sulphate or other alkali metal or alkaline earth metal bisulphates; and aluminium sulphate.  The catalyst carriers may be granular, or in powder form for fluidized bed operation, and may be inert, e.g. gamma-alumina, porous glass or silicon carbide, or surface-active, e.g. activated silica gel alpha-alumina or activated carbon.  The mass velocity of trioxane with respect to catalyst, may vary for example between 0.3 and 2.5 parts by weight per hour.  The reaction may be carried out at atmospheric, super atmospheric or sub-atmospheric pressures and the trioxane vapour can be diluted with an inert gas, e.g. methane or carbon dioxide.  In examples, (1) trioxane vapour at 210 DEG  C. is passed over a catalyst, prepared by mixing 12 parts of 85 per cent phosphoric acid with 90 parts of porous silicon carbide granules, and maintained at a temperature of 210-230 DEG  C.  An 89 per cent yield of formaldehyde containing no trioxane, carbon monoxide, hydrogen methyl formate or water is obtained; (2) the catalyst is prepared by adsorbing 18 parts of KHSO4 from a saturated solution on 90 parts of activated charcoal granules and drying for 24 hours at 110 DEG  C. Trioxane is vaporized and passed over the catalyst at 115-125 DEG C.ALSO:Catalysts used in the production of anhydrous formaldehyde from hot trioxane vapour (see Group IV (b)) are the granular sulphonated copolymers of styrene and divinyl benzene; sulphonated coal or wood; copper pyrophosphate; boric acid; phosphoric acid; potassium hydrogen sulphate or other alkali metal or alkaline earth metal bisulphate; and aluminium sulphate.  The catalysts may be supported on carriers which may be granular or powders suitable for fluidized bed operation.  The carrier may be inert, e.g., silicon carbide, gamma alumina or porous glass, or may be surface active, e.g., activated silica gel or alpha alumina.  In examples the catalyst is prepared by (1) mixing 12 parts of 85 per cent. phosphoric acid with 90 parts of porous silicon carbide granules, (2) adsorbing 18 parts of KHSO4 from a saturated solution on to 90 parts of activated charcoal granules and drying for 24 hours at 110 DEG  C.
Patent GB-356925-A (GB)
Title: Improvements in an air washer
IPC: F02M35/026
Filed: 1930-08-27
Abstract: 356,925. Air washers for engine carburetters. FORD MOTOR CO., Ltd., 88, Regent Street, London. Aug. 27, 1930, No. 25601. Convention date, Sept. 23, 1929. [Class 55 (ii).] In an air washer for engine carburetters, wherein the air is bubbled through a constant depth of water, the filling opening of the reservoir is isolated from the suction chamber. The air inlet pipe 16 is surmounted by a closed ended tube 29 supported by floats 32 and submerged in the water, a passage 61 being provided for the air between the pipe 16 and tube 29. A screen 35 surrounding the air inlet and extending to near the base of the reservoir 15 isolates the filling opening (not shown) from the suction chamber 40 which communicates with the carburetter through a pipe 42 ; a diaphragm 37 with louvred openings is carried by the tube 29 to prevent excess moisture from reaching the suction chamber. In its application to a farm tractor, the reservoir is arranged above the transmission gear box 13, and is formed with a housing 46 to receive the steering gear 48. The lower part of this housing is open to receive lubricant from the gear box, and a breather pipe 53 extends into the suction chamber so that any oil fumes may be drawn into the carburetter. The rear wheel 17 of the reservoir may extend across the tractor to form a dashboard and a support for the fuel tank 14.
Patent GB-1469237-A (GB)
Title: Conveyor system including an overhead rail and a number of self propelled driving units
IPC: B61B9/00
Filed: 1973-05-30
Abstract: 1469237 Elevated railways L O BENNDAHL 29 May 1974 [30 May 1973] 25696/73 Heading B7L A conveyer system comprises self-propelled driving units 4 movable along an overhead rail 2, each unit 4 having means such as a pulley rod 6 for connection to a load carrier 9 or a suspended load, driving wheels 48 connected to a drive motor 44 and engaging a rail surface 12, and counter pressure wheels 52 engaging an opposed rail surface 14, the pulling rod 6 being operatively linked to the wheels 48 and 52 so that the force with which the wheels are urged against their respective rail surfaces is increased in response to increased force acting on the rod 6. The wheels 52 are mounted on a base chassis 34 from which extends an upright post 36 on which is pivotally mounted one end of an upper chassis 38 carrying the driving wheels 48 and motor 44, the other end of the chassis 38 being pivotally connected to a lever 40 which extends through an opening in base chassis 34 to a bracket 56 for the rod 6. The lever 40 and chassis 34 may be provided with co-operating force direction converting means such as a roller (68) on lever 40 acting on wedge members (70, 74) on chassis 34, Fig. 4 (not shown), which convert a force component exerted via rod 6 in a direction parallel to rail 2 into a force component acting perpendicular to the rail (i.e. vertically in Fig. 1).
Patent GB-296788-A (GB)
Title: A motor mowing machine guided by hand
IPC: A01D34/08
Filed: 1928-09-07
Abstract: 296,788. Grunder & Co. Akt.-Ges., A. Sept. 9, 1927, [Convention date Mowing-machines. -- A two-wheeled motor mowing-machine having a laterally projecting knife bar d and adapted to be guided by handles h has a bar e secured by an horizontal pivot e<1> to the frame of the machine and formed at its rear end with a curved portion on which a wheel f provided with a rib f<1> is adjustably secured. The wheel is adjusted to the angle requisite to neutralize the turning effect due to the lateral knife bar when mowing but can be arranged along the longitudinal axis of the machine during travelling. The bar e is elastic, is situated between vertical guides, and its height is controlled by an adjustable stop b<1>.
Patent GB-616114-A (GB)
Title: Improvements in or relating to strip-grinding machines
IPC: B24B3/48
Filed: 1946-08-28
Abstract: 616,114. Grinding razor - blade strip. FAIREST, Ltd., M., FAIREST, M., and DICKINSON, E. V. Aug. 28, 1946, No. 25742. [Class 60] A machine for grinding the edges of steel strip in the manufacture of wafer-type safety razor blades has the strip guide comprising a guide bar adapted to lie between the strip and the grinding head and to leave one edge of the strip exposed to the grinding head, and a guide block adapted to press the exposed edge of the strip against the grinding head, the guide block being capable of withdrawal from the side of the guide remote from the grinding head. In a machine for grinding strip having two friction guides 19A, 19B carried on springable brackets 20 and movable towards or away from grinding heads 11 by plungers 21 engaged by cams 23, each guide comprises a tie bar 35, Figs. 3, 5, secured across the upper ends of the support brackets 20 and slotted at 36, in line with each grinding head, to receive two holders 37 for guide blocks 38. The holders 37 are flanged at 40 and are held in position by a bridge-piece 41 bolted to the tie bar 35. Above the lefthand guide block 38 (Fig. 3) a guide bar 44 is fitted to a guide plate 48 attached to the bar 35, the lower tapered end of the bar 44 overlapping the block 38 so that strip may pass freely across the face of the block and have its upper edge covered by the bar 44 and its lower edge presented, by the block 38, to the grinding head. A similar guide bar is provided for the right-hand guide block 38, but secured below the block so as to project upwardly, both guide bars 44 overlapping in the middle of the guide. The strip is guided endwise into and out of the guide by edge guides 51 and is backed, where it does not contact the grinding wheels, by fixed guides 54, 55. When one edge of the block 38 becomes worn, it may be inverted by removing the holder and inverting and replacing it, when this edge is worn the block may be reversed to present one of its rear edges to the strip.
Patent GB-962505-A (GB)
Title: Pneumatic capstan rollers for feeding webs
IPC: G11B15/38
Filed: 1962-07-05
Abstract: 962, 505. Pneumatic tape capstans. SPERRY RAND CORPORATION. July 5, 1962 [July 17, 1961], No. 25861/62. Heading G5R. [Also in Division B6] A pneumatic capstan roller for selectively engaging a record tape, 12, has a housing 24 including a fluid conduit having an inlet 52, a throat 30 and an exit 32, the throat being enlarged with respect to the inlet at their function, and at least one passageway 36 connecting the throat with the periphery of the capstan roller. The velocity of fluid, e.g. air, flowing in the conduit is controlled by position of a plate 38, such that if the velocity in the throat section is high there is a partial vacuum at the capstan roller periphery to cause engagement of the tape and capstan roller and if the velocity is low pressure is created at the periphery of the tape carrier to disengage the tape from the roller. The position of the plate 38 is controlled by a coil 46 within a polepiece 48, the coil being energized by conductors, not shown, in a channel 50. The plate 38 is held away from an exit 54 by springs 60 which oppose the force of the fluid when a small current is supplied to the coil 46. When this current is increased the plate 38 is attracted to move the plate to "closed position". A reduction of the current causes the plate to be returned to "normal position", while complete de-energization of the coil allows the plate to move to "open position". In another embodiment Fig. 6 (not shown) a movable plate 72 is positioned adjacent an inlet channel 70 which extends into the fluid conduit at a point A, such that the pressure at this point may be varied by the position of the plate 72.
Patent GB-859398-A (GB)
Title: Improvements in vulcanization of butyl rubber
IPC: C07C205/42
Filed: 1959-07-28
Abstract: Butyl rubber is pre-cured or vulcanized by heating with a nitrophenol <FORM:0859398/IV(a)/1> wherein n is less than 3, i.e. 2, 21-methylene-bis-(4-nitro-6-acetoxymethyl phenol) or 2, 6-bis-(acetoxymethyl)-4-nitrophenol.  Optionally the Butyl rubber may contain a third monomer, such as chloroprene or allyl or methallyl chloride, or may be modified such as by halogenation. If pre-curing only is effected then further vulcanization using conventional ingredients may by carried out.  Alternatively a precuring with conventional ingredients may be effected followed by the use of a nitrophenol as above to complete the vulcanization.  A heavy metal chloride (e.g. SnCl2) may be included as accelerator, and other optional additives are carbon black, silica, clays, whiting, pigments, dyes, release agents, blowing agents, plasticizers, tackifying agents, and in the examples paraffinic oil and a butylphenol/formaldehyde resole. Applications specified are in tyres, tubes curing bags, steam hose, conveyer belts, fuel cells and clothing.
Patent GB-186076-A (GB)
Title: Improvements in or relating to the handling of sheet stock
IPC: A43D33/02
Filed: 1920-09-08
Abstract: 186,076. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Sept. 8, 1920. Pile tables and supports for sheet feeds; sheet separators.-In mechanism for handling articles cut from sheet stock of wedge section, such as wedge-shaped heel lifts, including a magazine containing a stack of such articles, the articles in the stack are maintained with their central planes parallel. As shown in Fig. 2, wedge-shaped heel lifts are so maintained by local deformations at their thin side, and the magazine comprises a curved member 28 engaging the back of the heel lifts, and two angular members 40 adjustable for different sizes of lifts. To facilitate recharging, the upper front portion of the magazine is normally closed by hinged doors which open when catches 78 are moved. The lower lift rests on the edges of plates 82, 86 and one lift at a time is delivered to a conveyer 121 bv mechanism comprising oscillating arms 94, 116 operating slides 88, 98 which push the lower lift first forwardly and then rearwardly to clear the supports. As shown in Fig. 5, the stack is supported by adjustable angle members 4*, 6*, 8* and 10* and the lifts are arranged with their thick and thin portions alternating. The stack is rotated through half a revolution between successive feeding motions so that the lifts are separated similarly disposed. The stack is supported on a turntable rotated by a gearwheel 32* actuated bv a mutilated gearwheel 34* rotating with a cam 50* which actuates a pusher 44* which feeds the lowest lift to a delivery shoot in the period of rest of the stack. Other means of maintaining the central planes of the lifts parallel are to support the thin edges on ratchet teeth, and to use a magazine smaller in width than the length of the lift so that the thin ends jam before dropping into contact. The apparatus shown in Fig. 2 is claimed in Specification 172,578.
Patent GB-722384-A (GB)
Title: Apparatus for gaging and classifying sheets or the like
IPC: B07C5/10
Filed: 1952-10-16
Abstract: 722,384. Radiation thickness gauges. UNITED STATES STEEL CORPORATION Oct. 16, 1952 [Nov. 1, 1951], No. 25947/52. Class 40 (3). Apparatus for sorting sheet material travelling along a conveyer in accordance with thickness comprises a radiation detector and source on opposite sides of the moving sheet, the output current of the detector, which is a measure of the thickness of the sheet, selectively energizing relays controlling deflector gates to direct the sheet into an appropriate container. As shown, a sheet S to be gauged travels along a conveyer 2 to interrupt the beam from a light source 16 to a photo-cell 18, whereby a signal is produced which, after amplification at 20, energizes a relay 22 to open contacts 22a short-circuiting a meter 12 which measures the thickness of the sheet S by means of a further radiation source 6 and detector 8. The meter current passes through resistors 28, 30 across which are connected preset potentiometers 32, 34, 36, 38, feeding normally non-conducting valves 42, 46, 50, 54, respectively, to make one or more relays 68, 70, 72, 74 operate, thereby controlling deflector gates 96, 98, 100, 102 to guide the sheet S into the appropriate container 112, 114, 116, 118 or 120. Relay 22 energized by the initial signal from photo-cell 18, also controls the H.T. supply to valves 42, 46, 50, 54 via contacts 22b, and a further slowacting relay 122. The relays 68, 70, 72, 74 are located in synchrotimers 76, 78, 80, 82 respectively, mechanically driven from conveyer 2.
Patent GB-1036112-A (GB)
Title: Improvements in mixing arrangements for colour television signals
IPC: H04N9/76
Filed: 1963-07-01
Abstract: 1,036,112. Automatic phase control systems; colour television. FERNSEH G.m.b.H. July 1, 1963 [June 29, 1962], No. 25959/63. Headings H3A and H4F. In mixing or cross-fading NTSC colour television signals from different cameras, colour distortion is avoided by comparing the phases of the colour sync. outputs of the NTSC coders of each signal channel with each other or a standard, and using the resulting comparator D.C. outputs to adjust the phase of the subcarrier input to each coder (except that one, if any, used as a standard) so that all output colour sync. bursts of the coders are of equal phase. The standard may be a colour sync. signal generator synchronized by the incoming subcarrier, or it may be a colour burst reference signal separated at a mixer desk from an incoming combined black level, line sync. and colour burst signal and applied to phase comparators each receiving similar burst signals derived by similar sync. separators at the desk from different incoming NTSC coded signals, the phase, comparator outputs adjusting subcarrier phase shifters preceding the NTSC coders. Alternatively two TV colour cameras may produce an inlay pattern of two NTSC colour signals selectively controlled by an electronic switch operated from a further TV camera scanning a pattern of two different reflectances, and the NTSC coders fed from the two colour cameras may have their inputs made equal in phase by a control system as above. The phase shifter may be a resolver operated by a stepping motor, or may be the combined outputs of two ring modulators fed in phase quadrature by the subcarrier. The ring modulators then are each controlled by D.C. voltages derived from synchronous detectors fed by colour bursts derived from a pair of NTSC coders, in one case the bursts being relatively phase-shifted by 90 degrees. One NTSC coder output, after colour burst separation, may be given an adjustable fixed phase shift to eliminate any intrinsic phase error of the system.
Patent GB-1389142-A (GB)
Title: Electrical surge arrestor
IPC: H01T4/12
Filed: 1973-05-31
Abstract: 1389142 Surge arrestors COMTELCO (UK) Ltd 31 May 1973 25961/73 Heading H1D A surge arrestor comprises first and second electrodes 10, 12 aligned coaxially in an insulating sleeve 14 of about the same coefficient of expansion as the electrode material, the electrodes being spaced apart by a gap defined by the ends of the electrodes which are shaped so that one of the surfaces has a projecting part 25 and the other is flat or has a recess 30 and the gap has a narrower portion at a point across its width. The arrangement is such that in the event of a predetermined overload the electrodes will melt and fuse together. The electrode ends can be spherical Fig. 3 (not shown) or they can be arranged to overlap so that the active surfaces are parallel to the axis of the sleeve 14, Figs. 6 and 7 (not shown). The sleeve can have set-backs 90, 92 to prevent shorting as a result of sputtering. The arrestor can be filled with a rare gas and krypton 85 or another source of ionising radiation can be provided.
Patent GB-445767-A (GB)
Title: Improved electric heater for water and other liquids
IPC: F24H9/20
Filed: 1934-09-10
Abstract: 445,767. Snap-action switches. WALLIS, H. S., K.1, Raleigh Street, St. Kilda, Victoria, Australia. Sept. 10, 1934, No. 25994. [Class 38 (v)] [See also Groups XI and XXIX] The supply of water through sinuous passages 49 containing electric heating elements is controlled by a main valve 23' operated simultaneously with the switch controlling the heating elements. A sleeve 66 forming the hub of the rotary quick break switch has end clutch members 64, 67 adapted to engage corresponding members 63, 68. The member 63 forms part of a screwed sleeve 62 fixed to the valve spindle, and the member 68 is adjustably secured to the valve spindle. A plate 88 carrying the moving contact arms 89 of the switch is secured to a guide plate having radial slots in which engage lugs 82 on a strap on an eccentric sheave secured to the hub 66. A coiled spring 96 engaging an upstanding plate secured to the contact plate 88 give the moving contact a snap action. In place of the clutch, the switch hub may be rotated by a radial pin on the valve spindle engaging upper and lower projections on a collar secured to the hub.
Patent GB-154049-A (GB)
Title: Improvements in remembrancers
IPC: B43K23/00
Filed: 1919-10-23
Abstract: 154,049. Donelan, D. Oct. 23, 1919. Attaching articles to wearing-apparel; pockets, retaining articles in.-A remembrancer or device for giving warning of an omission to replace a fountain-pen, pencil, pocket-knife, spectacle-case &c. in the pocket or on the person after use comprises, in its application to a fountain-pen, a tubular bell, gong or the like 1, Fig. 2, provided with a suspender striker 2 and a thread 6 with a clip 7 for attachment to the person. When the pen is being carried in the pocket or on the person, the bell is placed on the cap 8 or on the bottom of the pen and may have a clip 10 to replace the usual pocket clip. While the pen is in use, the bell 1 hangs free and rings continuously if the user moves away without replacing the pen. Slits 10<1> are provided to increase the resonance of the bell and make it resilient. When applied to a spectacle-case, Fig. 6, the lid and body of the case are each provided with a semicylindrical member 13 over which the bell 1 is placed, so that the case cannot be opened without first removing the bell.
Patent GB-628239-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C2/46
Filed: 1947-09-26
Abstract: 628,239. Rotary pumps. BATE, B. DIXON-. Sept. 26, 1947, No. 26124. [Class 110(ii)] The rotor a has two packing blocks d at the ends of the maximum radius, inlet and outlet ports g, f, and a hinged abutment h. Hard rubber, glass or plastic material may be used for the pump, and the blocks d may be of graphitic carbon. A grease cylinder supplies the shaft bearings, the shaft being hollow. A hardened ball is provided to take end thrust.