baber/WOPTO huggingface dataset:
Patent GB-1298850-A (GB)
Title: Wind protection cover for a heating appliance mounted at an external wall
Inventor: HAEFKE GUNTHER
IPC: F24C15/00
Filed: 1970-10-26
Abstract: 1298850 Balanced flues HALLER-MEURER WERKE AG 26 Oct 1970 [25 Oct 1969] 50761/70 Heading F4J In a balanced flue system for a heating appliance which comprises a combustion gas outlet duct 1 located in the upper part of a combustion air inlet duct 2, a wind deflector 7 covering the lower section of the outlet crosssection of the flue gas duct, and a wind protection cover 8 of box-form, the cover 8 is characterized in that the upper end wall is omitted, and that between the two side walls at least one wind protection plate (13, Fig. 3) is provided which extends parallel to the external wall 4 to which the cover is fitted and is disposed at a spacing for the external wall. The plates are offset in height and spacing relatively to each other in such manner that a connecting plane between the upper edge of a first wind protection plate and the lower edge of a second wind protection plate located nearest to the external wall includes one angle 17 with the horizontal which is greater than 20 degrees.
Patent GB-1211785-A (GB)
Title: Improvements in or relating to contact systems for sliding switches
IPC: H01H11/06
Filed: 1968-10-25
Abstract: 1,211,785. Switch contacts. W. PREH, [trading as PREH ELEKTROFEINMECHANISCHE WERKE JAKOB PREH NACHFOLGER]. 25 Oct., 1968 [29 Aug., 1968], No. 50876/68. Heading H1N. In a sliding switch having a contact bridge made in one piece and disposed in a chamber in a slide 1 for co-operation with fixed contacts 10a, 10b, 10c, spaced apart in the direction of sliding movement of the contact bridge, the contact bridge comprises a rectangular frame having shorter sides 7, 7<SP>1</SP> formed integrally with inwardly directed convex contact arms 8, 8<SP>1</SP>, and the frame has long sides 5, 5<SP>1</SP> provided midway there along with recesses 6, 6<SP>1</SP> engaged by projections of the chamber walls, and middle regions of the frame long sides 5, 5<SP>1</SP> rest on ledges provided in and at opposite sides of the chamber. As shown the ledges are on the projections. The contact bridge is made of silver-plated bronze strip.
Patent GB-1342618-A (GB)
Title: Multi-cylinder crankshaft machine
IPC: F04B53/00
Filed: 1971-11-02
Abstract: 1342618 Reciprocating pumps and compressors PUMPENFABRIK URACH 2 Nov 1971 [3 Nov 1970] 50901/71 Headings F1A and F1N In a multi-cylinder machine, e.g. a pump or compressor, comprising a multi-throw crankshaft 11 supported at each end by bearings 12, 13, further support for the crank-shaft against the working piston forces is provided by pistons 34 subjected to fluid-pressure and acting on crankshaft portions 19, 20. As shown, pistons 34 act via shoes 36 slidably engaging portions 19, 20, and are subjected to the output pressure of the machine. Shoes 36 are lubricated by lubricant picked up from a sump by portions 19, 20, lubricant also being thrown into a chamber (43), Fig.1 (not shown), supplying it to cross-heads on con-rods 22. In Fig. 4 (not shown), pistons 34 are positioned remotely from the crankshaft, and act on shoes 36 via a rod and lever linkage. In Fig. 5 (not shown), shoes 36 are replaced by rings surrounding portions 19, 20 and each having a piston portion (233) slidable in a cylinder pivotably supported inside the machine casing. The piston portion (233) has a bore connecting its cylinder to a clearance (260) between the ring and the crank-shaft portion, and is spring-loaded, the hydraulic pressure generated in the clearance supporting the crank-shaft against the working piston forces.
Patent GB-511438-A (GB)
Abstract: 511,438. Cash registers, revolving-barrel locks. NATIONAL CASH REGISTER CO. Feb. 17, 1938, No. 4935. Convention date, March 25, 1937. [Class 106 (i)] [Also in Group XXV] Keyboard mechanism sequence arrangements taking totals and subtotals. A cash register or similar accounting machine is adapted to be conditioned for total or subtotal taking by a key insertable into a lock; full insertion of the key locking the amount keys, and depression of an amount key preventing the full insertion of the key. The invention is described as applied to a machine wherein the kind of operation is controlled by a differential member 36, Fig. 1, positioned by key stems 33, 35 in subtotal and total taking operations. The key stems are now headless and are depressed alternatively upon the rotation of a lock barrel in one direction or the other. Upon the insertion of a key 24, Fig. 6, the barrel is rotatable by the key in counter-clockwise direction only, whereupon a pinion 28 on the barrel, meshing with a rack 29 on a slide 30, shifts the latter downwardly, and by a cam-slot 31, therein, depresses the subtotal key stem 33. Upon the insertion of a key 25, Fig. 5, the barrel is freed for rotation by the key in either direction to shift the slide upwardly or downwardly and thus depress the total key stem 35 or the subtotal key stem 33, respectively. Rotation of the barrel in either direction, by a stud 45 on the slide, rocks a bell-crank 47 clockwise to release the machine. Insertion of either key rocks a crank 52 and, through a slide 54 and link 56, interposes a bail 57 in the path of a series of arms 60, each associated with a detent plate in one of the amount key banks, whereby the amount keys are locked. Conversely, upon the depression of an amount key prior to the insertion of one of the keys 24, 25, an arm 60 is positioned below the bail 57 to prevent the complete insertion of a key 24, 25. Revolving-barrel locks. The lock, Figs. 5 and 6, has a barrel divided into two parts 12, 13 secured-against longitudinal movement by screws 15 and normally held against rotation by pins 19 and tumblers 18. Upon the insertion of key 25, Fig. 5, both parts of the barrel are freed for a rotation by the key of about 90 degrees in either direction, the extent of potation being limited by studs 42 on the part 12 co-operating with a fixed stud 43. However, upon the insertion of key'24, the barrel part 12 only is freed, which part may now be rotated in counter-clockwise direction, rotation in clockwise direction being prevented by an overlapping end part of the barrel part 13.
Patent GB-1039834-A (GB)
Title: Retractable undercarriage
Inventor: PERDUE JACK
IPC: B64C25/34
Filed: 1963-12-30
Abstract: 1,039,834. Retractable undercarriages. ELECTRO-HYDRAULICS Ltd. Dec. 30, 1964 [Dec. 30, 1963], No. 51158/63. Heading B7G. A retractable undercarriage has one or more leading or trailing links such as 31a pivoted at 32a to the aircraft and connected by a shook absorber 36a and a bracket 43A to an actuating shaft 38 mounted on the aircraft in bearings 41. The links are pivoted to retract the wheels to the positions such as 35 2 a by moving the shaft 38 longitudinally by a jack 39, or by rack and pinion drive, so that the shock absorber 36a takes up the broken line position. The jack may include mechanical locks, and the actuating shaft may be parallel to (as shown) or inclined to the fore-and-aft aircraft axis. In a modification the brackets 43A are arranged to slide in a track on the aircraft, and are moved along the track by a jack acting through links connecting the brackets and forming the actuating shaft. In another embodiment the actuating shaft may be a lead screw and the brackets 43A formed as units movable along the screw when the latter is rotated, e.g. by an electric or fluid pressure operated motor.
Patent GB-1077519-A (GB)
Title: Improvements in or relating to television camera tubes
IPC: H01J31/28
Filed: 1964-12-17
Abstract: 1,077,519. Television pick-up tubes. COMPAGNIE FRANCAIS THOMSON HOUSTON. HOTCHKISS BRANDT. Dec. 17, 1964 [Dec. 31, 1963], No. 51459/64. Heading H1D. In an image-orthicon tube arrangement in which leakage fields penetrating into the image section from the line-scanning coils are compensated by coils disposed about the image section within a conductive screen and, fed with currents of the same frequency as those supplied to the line-scanning coils but with a waveform deformed according to a time constant determined by adjustable, passive elements constituting a correction network in order to secure complete neutralization. The line currents are fed to the compensating coils from the deflection coils via a variable inductor or transformer in parallel with a variable resistor which is in series with the compensating coils.
Patent GB-1153915-A (GB)
Title: An Arrangement in Masts for Sailing-Boats
Inventor: PLYM OSCAR VILHELM
IPC: B63B15/02
Filed: 1967-11-17
Abstract: 1,153,915. Sail supports. O.V. PLYM. 17 Nov., 1967 [25 Nov., 1966], No. 52491/67. Heading B7V. In sailing craft having a flexible mast 1, lever means 3 pivotable about a substantially horizontal pivot 2 at the top of the mast and extending fore and aft comprises a long arm 3b connected to the after-stay 5 and a short arm secured to the fore-stay 4. The arrangement includes pulleys 9 and 13 for the sail halyards.
Patent GB-1526750-A (GB)
Title: Oval shaped pipes
IPC: E02B11/00
Filed: 1975-12-23
Abstract: 1526750 Oval shaped pipes SEKISUI KAGAKU KOGYO KK 23 Dec 1975 [26 Dec 1974] 52545/75 Heading F2P  A pipe 1 of oval cross-section is provided with a support portion to enable the pipe to be laid with the major axis of the oval cross-section vertical. The support portion may be separate from the pipe, Fig. 1, and comprise a flat plate 31 and sidewalls 32 and the pipe 1 may have ridges 2 which rest on the sidewalls 32. In Fig. 2, the support portion is integral with the pipe 1 and comprises a flat portion 41 with upwardly extending walls 4 and may be extruded in a single operation. The pipe may be formed from a synthetic resin. The pipe may be elliptical or egg-shaped with the narrower part being adjacent the flat portion.
Patent GB-1525540-A (GB)
Title: Furnace repair gunning apparatus
IPC: C21C5/44
Filed: 1976-12-17
Abstract: 1525540 Furnace repair apparatus KUROSAKI REFRACTORIES CO Ltd 17 Dec 1976 [25 Dec 1975] 52746/76 Heading F4B A gunning apparatus for the repair of furnace linings comprises a rigid non-circular pipe 5 slidably disposed by bearings 22 in a sleeve 4. The bearings 22 are of the duplicate type which in addition to slidably supporting the pipe 5 -  enable it to rotate relative to the sleeve 4. Guide rollers 18, on opposite sides of the pipe 5 and driven by a means 19 move the pipe back and forth longitudinally relative to the sleeve. The guide rollers 18 and drive means 19 are mounted on a circular plate 21 which is rotatably mounted on the sleeve 4. A spur gear 16 with drive means 17 mounted on the sleeve 4 meshes with a spur wheel 14 and provides the means for rotating the pipe within the sleeve. The sleeve 4 may be tiltably mounted on a column 2 which may itself be rotatably mounted on a transport car 1. The pipe 5 may be constructed of a plurality of non-circular pipes that can be extended or retracted telescopically. In a modified arrangement, Fig. 11 (not shown) the sleeve 4 and pipe 5 are integrally rotated. A further embodiment has the non- circular pipe mounted for movement vertically in a cylindrical body (52), Fig. 17 (not shown), that is rotatably supported on atransport car (48).
Patent GB-1416034-A (GB)
Title: Conveyor systems
IPC: B61B10/02
Filed: 1973-11-14
Abstract: 1416034 Conveyer systems JERVIS B WEBB CO 14 Nov 1973 [15 Nov 1972] 52858/73 Heading B7L A conveyer system comprises a plurality of forward and rearward carriers 12, 14 supported on a carrier track 16 which includes a forwarding portion 25 extending from a loading station 24 to an unloading station 26 and a return portion 27 extending from the unloading station 26 to the loading station 24, each carrier 12, 14 having a driving dog 31, 46, respectively (46 not protruding as far above the track 16 as 31), engageable by one of a plurality of pushers 18 of a propelling chain 20 having trolleys 21 supported on a track 22 adjacent the track 16, the invention being characterized in that a load-carrying unit is formed at the loading station 24 and consists of a load 42 attached, at 40, to and connecting a pair of carriers 12, 14 from which the load 42 is detached at the unloading station 26, and positioning means i.e. a rise section 50 and a drop section 52 (both shown schematically in Fig. 1) are respectively capable of preventing engagement of the driving dog 46 by any of the pushers 18 along at least part of the length of the forwarding track portion 25 and capable of returning the dog 46 to engageable relation with one of the pushers at the unloading station 26, the carriers 12, 14 being individually propelled along the return portion 27 of the track 16. The chain 20 is propelled by a drive unit 23 and each carrier 12, 14 comprises front and rear trolleys 30, 32 connected by hangers 35, 36 with a loadcarrying member 34, the trolleys 30 each having a forward lever 43 connected to the respective driving dog in known manner and the trolleys 32 each having a rearward arm 44 which when two load carrying units abut disconnects the drive dog 31 from the pushers 18. In the portion of track between the rise section 50 and drop section 52 the spacing between the tracks 16, 22 is greater than the normal spacing 48 and along that portion the pushers 18 cannot engage the dogs 46 of load carrying units but can engage the dogs 31. When a carrier 12 engages a stop 54 at the station 24 the dog 31 is disengaged from a pusher 18. The rearward carrier 14 of the pair has its dog 46 disengaged when a pusher moves along the rise section 50, whereafter the carrier is moved manually into position for attachment of a load 42 to the pair of carriers 12, 14. The stop 54 is located beyond the rise section 50 a distance equal to at least the maximum length of the load 42 to be attached to the pair of carriers. A stop 56 is provided at the station 26 to halt the load unit. When this is reopened the carrier 12 will be moved on and the carrier 14 can be moved manually to the drop section 52. In other embodiments the drive dog of the rear carrier 14 is operable by the lever 43 or by the weight of the load 42, as described with reference to Figs. 4 and 5 (not shown).
Patent GB-1357822-A (GB)
Title: Worm drive
IPC: F16H55/22
Filed: 1971-11-15
Abstract: 1357822 Worm and worm gearing HERBERT LINDNER GmbH 15 Nov 1971 [15 Jan 1971] 52959/71 Heading F2Q  A worm drive comprises a worm 1, 91 and a complementary worm wheel 2, 92 wherein the axial section of each worm tooth flank comprises a substantially straight part 5 and a part 4 of sharper curvature tangential to either the root cylinder 8, 98 or the addendum cylinder 9, 99 of the worm, whereby the path 15, 105 of contact comprises two branches 15a, 15b, 105a, 105b extending in the same axial direction from a rounded apex 16, 106 where they merge. The worm tooth flank profile may be parabolic, elliptical, hyperbolic, or may comprise a straight part 5 between a rounded root and crest tangential to the cylinders 8, 98 and 9, 99 respectively.
Patent GB-1237430-A (GB)
Title: Production of polyamide moldings
IPC: C08G69/18
Filed: 1968-11-08
Abstract: 1,237,430. Mould for lactam polymerization. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 Nov., 1968 [11 Nov., 1967], No. 53026/68. Heading B5A. Polyamide mouldings are produced by activated anionic polymerization of lactams having 6-12 ring carbon atoms by introducing a lactam melt containing one or more of said lactams, an activator and a catalyst into a double walled mould comprising an inner heat-conducting metallic layer and an outer heat-insulating layer. The inner layer is preferably metal sheeting of thickness less than 1 mm. and the mould may comprise cardboard laminated with metal foil. The process is preferably used for the production of elongated mouldings e.g. rods, the reagent mixture being introduced into a vertical mould so that the liquid level rises at a rate of 20-150 cm./minute. The reagents which may comprise two parts e.g. lactam and catalyst and lactam and activator are preferably run into the liquid in the mould from pipes 2-10 cm. below the liquid surface at a rate such that the liquid level rises at the same rate as the polymerization front moves upwards. Suitable lactams, catalysts, activators and fillers are specified.
Patent GB-1520760-A (GB)
Title: Apparatus for and method of immobilising stock
IPC: A61D3/00
Filed: 1975-12-31
Abstract: 1520760 Immobilising stock J O H TRIPP 31 Dec 1975 [6 Feb 1975] 53243/75 Heading A5R Apparatus for holding animals comprises guide means 39 for positioning an animal above a stand 2 having spaced-apart supporting surfaces 4 for extending lengthwise of an animal along each side of the underside thereof, the stand being connected to raising and lowering means whereby the animal can be supported with its hoofs in the air. The stand may comprise supporting bars 4 shaped as shown in Fig. I and connected by a plate 6 secured to a shaft 16 connected to a hydraulic ram 18, the arm 16 carrying a pin 32 which engages a slot in a fixed collar (24) on the ram, whereby after the stand has been raised a predetermined distance the shaft 16 and stand 2 can be rotated. The end portions of the bars may be telescopic. The guide means comprises a wheeled box having side walls 40 along which extend horizontal ledges 61 supporting hinged flaps 62 which in the lowered position of the stand abut to define a ridge extending longitudinally of the box whereby the legs of an animal entering the box are guided onto the ledges 61. The box has exit doors 42 controlled externally by a lever system (Fig. 8 not shown) which doors may have mirrors on their inner surfaces to encourage an animal to enter the box. The entrance to the box may have doors or a lock bar. The ram may be a pneumatic ram or a scissors-jack may be used to raise and lower the stand. In a modification the stand comprises an arcuate plate the edges of which may be shaped to provide supporting surfaces or which may be provided with ridges shaped to form the supporting surfaces. A cradle to receive the animal may be secured to the stand or located adjacent thereto.
Patent GB-1095260-A (GB)
Title: Method of, and apparatus for, the measurement of density with radioactive nucleides
Inventor: DORFEL GUNTER
IPC: G01N23/08
Filed: 1965-12-20
Abstract: 1, 095, 260. Photo-electric density measurement. VAKUTRONIK WISSENSCHAFTLICHER INDUSTRIEBETRIEB DRESDEN VEB. Dec. 20, 1965, No.53894/65. Heading G1A. Measurement of the density of a substance, e.g. corrosive materials in closed pipes, by transmission of radiation from a radio-active nucleide source through the substance to a detector, involves the use of an additional nucleide source similar to the first in order to compensate for unavoidable fluctuations in source output, detector sensitivity and circuit component values etc. The apparatus comprises sources 1, 21, the latter being associated with a movable shutter 20, and an ionization chamber as detector, the circuitry utilizing a bridge network of resistors, potentiometers etc. made up of two arms with respective voltage sources 16, 17. The feedback stabilization of electrometer valve amplifier 5 is controlled by the variation of potentiometer 24 which is coupled to a potentiometer 13 in the bridge circuit. The measurement proceeds as follows. The arms of the bridge are balanced to zero meter 18. Then, with only radiation from the source 1 reaching the detector 3, the radiation from source 21 being stopped by shutter 20, the detector output is compared with the output of the bridge circuit arm containing source 16. The difference between the voltages is indicated by meter 23. Next, radiation from the source 21 is allowed to reach the detector, the switch 22 associated with shutter 20 being connected at the same time to the middle contact of potentiometer 11. This introduces an extra detector output and an extra voltage from the bridge, due to the arm containing source 17. Any difference in these voltages results in a change in the indication of meter 23. This change is cancelled out by adjustment of potentiometer 12. The unbalance of the bridge caused by this adjustment is indicated by switching in the meter 18 and equilibrium is restored by adjustment of potentiometer 13. The fact that the latter is coupled with potentiometer 24 means that the meter 23 is again altered to give its final indication. The various adjustments after switching in the auxiliary source ensure that the original sensivitity of the apparatus is maintained, while compensating for the factors (fluctuations &c.) referred to above. Since only one of the meters 18, 23 is used at any one time, a single instrument, with appropriate switching circuitry, could be used. The adjustments of the potentiometers may be automatic, by means of servomechanisms.
Patent GB-1211710-A (GB)
Title: High speed surface finishing method
IPC: B24B31/02
Filed: 1967-11-27
Abstract: 1,211,710. Surface finishing. SHIKISHIMA TIPTON K.K. 27 Nov., 1967 [26 Nov., 1966], No. 53912/67. Heading B3D. A mixture of workpieces to be surface finished and abrasive is loaded into at least one barrel, having an internal cross-section in the shape of an equilateral polygon with from five to eight sides, a substantial free space being left in the barrel; the barrel is rotated at n rotations per unit time in one direction about its own axis and simultaneously gyrated at N revolutions per unit time in the opposite direction about a fixed axis, parallel to and located at a distance R from the axis of the barrel, R being greater than the radius r of the circumcircle of the equilateral polygon; the following relations are satisfied:- The proportion of workpieces to abrasive is preferably not less thanl: 10 by volume. The mixture may occupy 40-70%, and preferably 50-60%, of the internal volume of the barrel. N preferably lies in the range 80/#2R - 350/#2R r.p.m. R being in metres. A shaft 12 journalled in bearings 14, 14 on the legs of a U-shaped framework 10 is driven, through endless belt 38, by an electric motor 32 on the framework 10. Spaced support discs 16, 16 secured to the shaft 12 have located therebetween sleeves 18 disposed at substantially equal angular intervals. Cylindrical housings 20 are carried by shafts 22 supported in the sleeves, each housing having mounted therein a barrel 24. Each shaft 22 has secured thereto a sprocket 26 connected by a chain 30 to one of a number of sprockets 28 integral with each other and rotatable on the shaft 12. An electric motor 40 on the framework 10 drives the sprockets 28 through belt 46, change speed gearing 44 and belt 52. The motor 32 is rotated in the direction of arrow 54 to drive the support discs 16 in the direction of arrow 55 while the motor 40 may be rotated in the direction of arrow 56 or 57 to drive the barrels 24 in the direction of arrow 58 or 59.