baber/WOPTO huggingface dataset:
Patent GB-931156-A (GB)
Title: Improvements in or relating to hand trucks
IPC: B62B5/04
Filed: 1959-09-01
Abstract: 931,156. Brakes for hand-propelled vehicles. A. WALDNER, [trading as HERMANN WALDNER KOMM.-GES.]. Sept. 1, 1959 [June 19, 1959], No. 29736/59. Class 103 (1). [Also in Group XXX] An apparatus for simultaneously actuating a jacking device 1 mounted at the front of a hand truck and a rear wheel locking device 2 comprises a spring-loaded supporting plate 16 actuable by a bell-crank lever 18 through a connecting lever 20 into one of two positions so that the supporting plate 16 is either in a jacking position (illustrated in full lines in Fig. 1) or in a retracted position 17 (shown in dotted lines), the bell crank lever being actuable by means of a strap 10 pivotally mounted on a towing bar 9 of the hand truck, the spring-loaded supporting plate 16 having a guide tube 22 arranged to move up and down in a tubular housing 23 which also carries the front axle and wheels 4 and 5 of the truck, and the plate 16 being connected to the rear wheel locking device by a cable 8. The locking device 2 for the rear wheel 6, 7 of the truck is constituted by a pair of positive detents 43 which engage apertures 46 in the rear wheels when supporting plate 16 is lowered to its ground engaging position and the cable 8 attached at one end to supporting plate 16 is tensioned to pivot wheel locking lever 41 about its pivot 42 to actuate detents 43. When the towing bar 9 is moved downwards in the direction of the arrow 14, the strap 10 engages a bolt 15 on the bell-crank lever 18 so that when the towing bar is lifted the bell-crank lever 18 is moved upwards in direction of arrow 19, the spring-loaded supporting plate 16 being retracted and the positive detents 43 released from the apertures 46 in the rear wheels of the truck.
Patent GB-256449-A (GB)
Title: Improvements in apparatus for producing and projecting kinematographic pictures
IPC: G02B27/14
Filed: 1925-11-25
Abstract: 256,449. Heurung, A. Nov. 25, 1925. Optical systems.-In apparatus for producing kinematograph images, the objective system is used in conjunction with a system for turning the images through a right-angle about the optical axis, the turning system being one wherein all the reflections and refractions occur in one plane at 45‹ to the horizontal; the turning system may have its entrant and emergent faces perpendicular to the optical axis. and the turning system may be used in conjunction with a single objective for projecting black and white images. As shown in Fig. 1, a. prism f and lens e produce an image g of an object d, the image being turned through a right-angle, and twin lenses h produce two images i on the film. Figs. 5 and 6 show two forms of prism which may be used having their entrant and emergent faces at rightangles to the optical axes.
Patent GB-1483361-A (GB)
Title: Determination of colour filter val and exposure time in a colour printing process
IPC: G03B27/73
Filed: 1974-07-05
Abstract: 1483361 Determining colour filter values DURST AG 5 July 1974 [5 July 1973]  29921/74 Heading G2A Apparatus for determining colour filter values and exposure time for a colour printing process comprises a photo-cell with a linear voltage/light intensity characteristic and an amplifier 7 with linear characteristics and variable gain, the output signal of which is a measure of filter value. Beam 1 from an illuminated original passes through colour filters 2a, 2b and 2c on carrier 2, each corresponding to a layer of the printing paper, and chopper 3 to photo-diode 4. On operation of switch 5 one of filters 2a, 2b, 2c is inserted in the beam by device 6. The gain of amplifier 7 is controlled by feedback resistor 9. The signal is logarithmatized by amplifier 11, and in amplifier 12 is compared with a signal from one of potentiometers 15a, 15b, or 15c, selected by switch 14 which is linked with switch 5. When the inputs of amplifier 12 are equal, zero lamp 17 lights; otherwise luminous band 16 or 18, which may comprise incandescent lamps or luminous diodes, lights over a length corresponding to the difference magnitude. Variable resistor 9 is set to the desired exposure time indicated digits setting. The desired filter 2a, 2b, 2c and potentiometer 15a, 15b, 15c is selected. The potentiometer setting when lamp 17 lights corresponds to the intensity of beam 1 and may be calibrated in enlarger filter densities. Resistor 9 may be replaced by a number of switched resistors, which may be non-linear to vary the exposure time in steps. The settings of resistor 9 and the potentiometers can be digitally indicated. Chopper 3 Fig. 2 (not shown) consists of a masking lever alternatingly movable between stops by an electric motor. Device 6 Fig. 3 (not shown) comprises a first electric motor (27) which drives carrier 2, which engages a stop (28) defining its first position, a second electric motor driving an eccentric (29) between two positions where it engages a stop (30) so that it defines 2nd and 3rd positions of carrier 2 which it engages. A logical control device controls the motors. Chopper 3, device 6 and the photo-cell 25 can be accommodated in a probe 31, which is positioned in the light beam by making the shadow of circular bevelled orifice 33 in transparent plate 32 concentric with circular opening 35 on plate 34. Opening 35 is smaller than orifice 33. The diameters of centreing circle 36 and orifice 33 differ. The probe is inclined by a foot 37 which is one of two, arranged in coaxial bores 38 and 39. Its position is adjusted and maintained by holding device 40, movable against spring 41, and prevented from falling out by flange 43. Elements in the feedback circuit may compensate for the Schwarzchild effect and the photo-cell may have an automatic zero-adjusting means.
Patent GB-1210346-A (GB)
Title: Improvements in or relating to electric lamps
Inventor: BESACIER JEAN
IPC: H01K3/16
Filed: 1969-06-12
Abstract: 1,210,346. Lamp caps; discharge tubes. J. BESACIER. 12 June, 1969 [14 June, 1968], No. 29978/69. Heading H1D and H1F. An incandescent lamp or fluorescent tube 4 having a neck 3 formed with a pair of spaced grooves 5 which are disposed in a common transverse plane is fitted with a plastics base cap 1 which has internal anchoring beads 6 adapted to engage in the grooves 5 and one or more longitudinal slits 7 which enable the cap to expand sufficiently to snap on to the neck. When the cap is in position on the neck the opposite edges of each slit 7 are sealed together by ultrasonic vibration welding or electric induction heating.
Patent GB-741853-A (GB)
Title: Improvements in and relating to automatic control devices for gear boxes
IPC: F16H61/02
Filed: 1953-10-30
Abstract: 741,853. Change-speed control. COMPAGNIE DE PONT-A-MOUSSON. Oct. 30 1953 [July 16, 1953], No. 30072/53. Class. 80(2) A ratchet-wheel 38 geared to a ratio-control shaft a, operating a rotary or linear distributer of electric current, fluid-pressure or mechanical force for actuating. ratio-selecting members in a planetary gear (not shown) is moved stepwise in opposite directions for up and down-shift by pistons 32, 32a respectively, which are both locked in operative positions loaded continuously by compressed air, and are automatically and selectively unlocked, to cause shift, by an input-driven centrifugal governor 7, the spring 15 of which may be loaded at 61 by, e.g. the accelerator pedal on a motor-vehicle. The gear is driven through a fluid coupling. Locking is by two identical toggles 22, 22a, connecting fixed pivots 24, 24a with pawl-carrying plates 26, 26a rocking about the axis of the ratchet-wheel 38 and pivoted to the rods of the pistons 32 32a, the toggles being locked in inner over-centre positions by springs 39, 39a holding them against abutments 40, 40a. The toggle 22 functions for upshift, 22a for down, being unlocked by one of two pins 21, 21a on the governorrod 12. on its rightward or leftward movement respectively. Breaking the toggle, e.g. 22, permits the constantly acting pressure to thrust the piston 32 fully downwards, Fig. 6, so that the pawl 34 engages the ratchet teeth 35 and turns the ratchet wheel 38 one step up, establishing the next higher ratio. Each movement of the governor-rod 12, through a pin 16, swings a. lever 18 about a fixed pivot 19 and as the shift piston 32 or 32a reaches its lowest position, a projection 58 on its pawl-carrier plate 26 strikes a pin 57 on the lever 18, returning it and the governor-rod 12 to the initial central position, which is permitted by the change in engine speed in the new ratio. Towards the end of the gear shift movement the selector shaft a energizes by making contacts 55, a solenoid valve 50 which exhausts both pistons 32, 32a, permitting a spring 33 to return the operative piston 32 to its initial upper position in which it is reloaded with air pressure by the de-energizing of the solenoid-valve 50 by breaking contacts 55 at the end of the shift. To prevent upshift movement from top (fourth) speed, a latch 42 is turned by a spring 47 about a fixed pivot to engage a recess 45 in a disc 44, fast. with the ratchet wheel 38 in its fourth speed position, whereupon the tail of the latch 42 obstructs rightward upshift movement of the governor-moved lever 18. A similar latch 42a prevents leftward downshift movement from first speed under control of a recess 46 which is wider than 45 to permit both latches 42, 42a to engage it simultaneously to prevent also a shift in, either direction from neutral or reverse, which latter, together with first or any other desired speed, are engaged by manually turning the ratchet-wheel through a cable-controlled lever 59 which provides the lock.
Patent GB-465166-A (GB)
Title: Improvements in dressing textiles
IPC: D06M13/342
Filed: 1935-10-31
Abstract: Textile materials are dressed in order to impart pliability and softness with compounds of the general formula <FORM:0465166/IV/1> where X­N represents a tertiary amine, R is an aliphatic hydrocarbon radicle containing not more than 2 carbon atoms, and Y represents either -OR or <FORM:0465166/IV/2> R1, R2, R3 being aliphatic hydrocarbon radicles containing more than 6 carbon atoms, although either R2 or R3 may be hydrogen.  Suitable compounds are: stearylmethyl aminoacetic acid methyl ester-methochloride, oleyl diethanolbetaine ethyl ester chloride, stearyl dimethylbetainedodecylamide chloride, palmityldimethylbetaine - dimethylamide chloride, trimethylbetaineoleylamide chloride, tetramethylethylenedibetaine-stearylamide chloride, and acetododecylamide-dimethylbetaine-dodecylamide chloride.  The compounds may be used alone or in admixture with other dressing agents such as condensation products of fatty acids, fatty alcohol sulphonates, sulphonated oils, starch, dextrine, paraffin and delustring agents such as titanium dioxide.  The examples describe the dressing of artificial silk in fabric or skein form and a mixed cotton-artificial silk fabric with dilute aqueous solutions of certain of the above compounds.
Patent GB-761567-A (GB)
Title: Improvements in or relating to process and bath for the chemical plating of a catalytic material with nickel
Inventor: GUTZEIT GREGOIRE
IPC: C23C18/36
Filed: 1953-10-31
Abstract: Catalytic material is coated with nickel chemically by contact with a bath comprising an aqueous solution of nickel ions and hypophosphite ions in the molar ratio of 0.25 to 0.60, the absolute concentration of hypophosphitic ions being 0.15 to 0.35 moles per litre and the initial pH lying within the range 4.5 to 5.6.  Acetate ions may also be present.  The material coated may be Cu, Ag, An, Be, B, Ge, Al, Tl, Si, C, V, Mo, W, Cr. Se, Te, Ti, Fe, Ni, Co, Pd or Pt.  Nickel may be introduced into the bath as chloride or acetate and hypophosphitic of Na, K, Li, Ca, Sr and Ba may be used. Specifications 761,061 [Group VI] and 761,556 are referred to.
Patent GB-887804-A (GB)
Title: An improvements in or relating to harvesting machines
Inventor: ASHFIELD HERBERT EDWARD
IPC: A01F12/44
Filed: 1959-09-04
Abstract: 887,804. Machines for disintegrating standing vegetation. BROWN INDUSTRIES Ltd., DAVID. Aug. 29, 1960 [Sept. 4, 1959], No. 30185/59. Class 6(3). A harvesting machine comprises a shrouded power driven shaft 10 on which are mounted flails 17 for cutting and reducing a crop, a duct 11 through which the reduced crop is passed to rotating drums 13, 14 and 15 which separate the grain from the chaff and is characterised by an aperture 20 in the duct through which grain can be introduced into the machine for recleaning. The aperture may be surmounted by a removeable hopper 21 and means are provided for closing either the aperture or the hopper. Drum 13 has inwardly projecting prongs 16 which assist the draught induced by the flails to advance the crop towards the rearward end of the drum and the inner drums 14, 15 are perforated (15 having larger perforations than 14) to allow grain to pass through the drum 13, where it is guided by a helical ridge over a finely perforated part 12 through which weed seeds pass to hopper 19, before being collected in trough 18 within which is an auger 22 and which has an operable aperture in its bottom to enable it to be completely emptied of grain. The rotational speeds of the flail-carrying shaft and the cleaning drum can be varied independently of each other. Specification 854,184 is referred to.
Patent GB-520353-A (GB)
Title: Improvements in or relating to brake shoe linings
IPC: F16D69/02
Filed: 1938-10-19
Abstract: 520,353. Fabrics for brake linings. BRITISH BELTING & ASBESTOS, Ltd., and FENTON, J. C. Oct. 19, 1938, Nos. 30231/38 and 13476/39. [Class 142 (iv)] A brake lining, with or without some reinforcement over its whole area is provided with additional reinforcement at its centre 12, i.e., where the greatest wear takes place. The fabric may be of the width of the lining with extra or additional or different wefts at its centre 12, Fig. 3, or the fabric may be of a width equal to the length of the lining with the extra &c. warp threads in the centre as shown in Fig. 4. The lining may be made of asbestos threads; metal threads, metal and asbestos composite threads &c.
Patent GB-520385-A (GB)
Title: Improvements in or relating to boots or shoes and to methods of making the same
IPC: A43B3/12
Filed: 1938-10-20
Abstract: 520,385. Methods of making shoes. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Oct. 20, 1938, No. 30305. [Class 17 (ii)] A method of making a shoe without the use of special and expensive machinery comprises the use of two lasts, the first having a bottom area less by a predetermined amount than the second. An upper 20, Fig. 2, cut for the second last is assembled on the first last and an elastic insole 26 made of " Lastex " (Registered Trade Mark) or similar elastic fabric is preferably cemented to the upper and then permanently attached by stitching. The.upper and insole are then placed on the second last whereby the insole is stretched and the upper is intimately conformed to the last. The heel portion of the shoe may be treated in a similar manner. An outsole is then attached to the overlasted upper. If the shoe has an open shank, Fig. 5, the insole may be skived and folded back over a cord 50 to give a finished edge. A steel shank stiffener 52 may be added. To ifacilitate tight lasting tapes 60, 62, Fig. 7, may be attached to the uppers. In Fig. 8 the vamp may consist of a number of strips 66 connected by elastic tapes 68.
Patent GB-280579-A (GB)
Title: A floor cleaning appliance
IPC: A47L11/20
Filed: 1927-11-11
Abstract: 280,579. Timar, I. Nov. 15, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Floors, cleaning. - A plate 4 of wood, metal, or similar material is provided on the underside with a cleaning surface and on the top with recesses 8 and fastenings 9 for the attachment of a vacuum cleaner 2. The cleaning surface may be constituted by a brush or pad wholly or, as shown, partly by a brush 5 and partly by a pad 6. The wheels 7 are held in the recesses 8 by the fastenings 9 comprising straps and buckles. The nozzle 3 of the cleaner is vertically adjustable.
Patent GB-1529092-A (GB)
Title: Polymerisation of maleic anhydride
IPC: C08F22/06
Filed: 1976-07-22
Abstract: 1529092 Polymerizing maleic anhydride CIBA-GEIGY (UK) Ltd 29 June 1977 [22 July 1976] 30523/76 Heading C3P Polymaleic anhydride is produced by poly. merizing maleic anhydride in a solvent comprising a mixture of xylene, of which the ortho isomer content is up to 99%, and a non-reactive solvent of boiling point 110‹ to 180‹ C., using di-t-butyl peroxide as initiator. The preferred non-reactive solvent is monochlorobenzene. Others specificed are C 8-12  paraffins, tetrachloroethane and tetrachloroethylene, dichlorobenzene. n-butyl acetate and isoamylacetate. Non-reactive solvents are those which are inert to the polymerization reaction.
Patent GB-708235-A (GB)
Title: Improvements in or relating to phonographs
IPC: G11B19/265
Filed: 1952-12-02
Abstract: 708,235. Gramophone turntable accessories. INDUSTRIAKTIEBOLAGET LUXOR. Dec. 2, 1952 [Dec. 17, 1951], No. 30531/52. Class 40 (2). A speed changing device for use on a gramophone turntable or reel 4 of a magnetic transducing apparatus, comprises a disc 7 which rests on the turntable or wire 4 and is also used for carrying a gramophone record, and a stepped wheel 10 which when moved to engage both disc 7 and turntable or reel 4 effects a speed reduction of the disc 7, but when disengaged permits the disc 7 to move at the normal speed of the turntable or reel 4 owing to the element of friction between the disc 7 and turntable 4, whereby a standard 78 r.p.m. record may be played without removal of the disc 7. In a modification, two movable wheels, each of different diameters, are employed so that by engagement of one or the other two reduction speeds are obtained, such as 45 and 33 1/3 r.p.m. In another embodiment, Figs. 2 and .3, a unitary device for obtaining the above speeds, comprises a plate 16, for placing on a turntable 13, having a solid flange 19 therewith which frictionally engaged a disc 20 on which a record may be supported. A stationary plate 23 supports a pivoted plate 25 carrying stepped wheels 31, 32 of different diameters, which may alternatively be moved into contact with the plate 16 and disc 20 according to the speed desired. The plate 23 may carry a pick-up specially intended for use on long-playing records.
Patent GB-347642-A (GB)
Title: Improvements in, or relating to, electrical sound reproducing apparatus
IPC: H04R11/00
Filed: 1930-01-29
Abstract: 347,642. Telephone instruments. COLASSI, W. L., 26, Burnham Court, Bayswater, London. Jan. 29, 1930, No. 30734. Divided on 337,094, [Class 40 (iv), Telephones &c.]. [Class 40 (iv).] For adjusting the relative positions of the armature and magnet, the latter is pivotally mounted and springs are provided on both sides of the pivot so that the magnet is held constantly pressed either towards or away from the reed. A further adjustment is provided by making the pivots movable. In the preferred form the magnet is held pressed towards the armature, as the spring pressure on the pivot is then added to the magnetic pull. The magnet platform 5, Fig. 3, is pivoted by pins 6, in the holes 7, in pillars 3 fixed to a baseplate 2. Located in recesses in the plates 2, 5 are springs 9, 10 and another, not shown, making a pair with 9, and acting in opposition to 10 which is stronger than the pair in conjunction. For adjustment a bolt 11 fixed to the platform 5 passes through the plate 2 and carries an adjusting nut 12 bearing against a distance-piece 13 secured to the plate 2. An adjustable stop 15 is provided to prevent the pole-pieces being pressed heavily against the armature. The pivot pins 6, Fig. 5, may be adjustably mounted in hollow supporting pillars 19, being pressed on to springs 24, by members 25 with inclined lower ends and engaged at the upper end by set-screws 26. Shims or washers may be provided for adjustment of the pillars 19 relative to the baseplate. The armature is mounted to move as a whole, on wires clamped at both ends. Specification 337,094 is referred to.
Patent GB-1391670-A (GB)
Title: Apparatus for producing pseudo-random effects
IPC: H03K3/84
Filed: 1972-06-30
Abstract: 1391670 Automatic control BURLINGTON INDUSTRIES Inc 30 June 1972 [1 July 1971]  30741/72 Heading G3N A first pseudo-random final output signal is alternately produced with a second final output signal by producing the first signal, at any one of a plurality of given times in a given time range, after the second signal is produced, determining the order of given times is pseudo-random and producing the second signal a predetermined time after the first signal. As shown, a programmed device for controlling slubbing operations, Figs. 2A, 2B comprises a frequency divider 22 to which is fed pulses from a clock 20 or a pulse train from a spinning-frame tachometer, not shown, enabled at a predetermined frequency by a circuit 24. The frequency divider is selectively controlled by the valve set on a slub length switch 26 and on a space length switch 28 enabled over lines 44, 48 by a flip-flop 38 which also actuates clutches of a slub-producing machine, not shown, through a driver circuit 230. The ratios of minimum to maximum slub and space lengths are set on switches 45, 46 which are enabled by the signals on lines 44, 48, and connected through logic 90 and decimal-to-binary converters 92-96, 110 to cascaded frequency divider 50, 52, 54. The output signals from divider 52 represents the minimum length set for space and slub and the output from divider 54 comprises a train of output signals the separation between adjacent signals representing equal length divisions in the range of settings of switches 45, 46. The condition of flip-flop 38 is changed to terminate a space, or slub, being produced upon a pseudorandom count of these divisions, which is effected by frequency dividers 84, 86 responsive to the settings of space and slub length and ratio mode switches 184, 190, 226, 228 through the logic shown and shift registers 160, 162. In Fig. 5 a set-up for producing slub yarn on a spinning frame is shown, the draft being controlled by speeding up a shaft 812 with respect to a shaft 810 through an electric clutch 820 and subsidiary gearing from a main drive shaft 822. Gears 832, 834 form part of a mechanical over-riding clutch mechanism whereby gear 834 is coupled to the shaft 812 when it is turning at a greater speed than the gear 832. Conversely, the gear 832 is coupled to the shaft 812 only when it is turning at a speed equal to or greater than gear 834. In an alternative arrangement two ends of yarn to be twisted and wound on a spindle are fed through separate rollers one of which is controlled by an electric clutch arrangement.