baber/WOPTO huggingface dataset:
Patent GB-1097927-A (GB)
Title: Improvements in bending presses
IPC: B21D5/00
Filed: 1965-05-07
Abstract: 1,097,927. Angular bending. P. COLLY. May 7, 1965 [May 22, 1964], No. 19359/65. Heading B3E. A bending press has a rear gauging stop 14 for the metal to be bent carried by two sliding blocks 13 adjustable along two brackets 12 by two screws 11, interconnected by shaft and bevel gear means, the brackets 12 being pivotable, to carry the stop 14 away from its operative position, about studs 17, the screws 11 being disconnected by sliding sleeves 10, from their drive. Stop means limit such pivoting movement, the movement itself being effected by hand or power-driven screw means or by fluid pressure means. The stop 14 may be adjustable vertically by screws 16 turned by hand wheels 15. It may be adjustably inclined in the horizontal or vertical plane. The screws 11 may be adjustable axially. The stop 14 may be formed with holes to mount a collapsible stop, a support for the sheet to be bent or an auxiliary stop.
Patent GB-216393-A (GB)
Title: Improvements in letter files
IPC: B42F9/00
Filed: 1923-07-30
Abstract: 216,393. Crocker, S. H. July 30, 1923. Clamping-devices. - In a file of the kind in which the letters &c. are secured between a clamping-plate g and a base a by a bifurcated spring- controlled lever capable of exerting pressure in its plane of rotation, the lever comprises a pair of limbs f<2>, f<3> connected together by a resilient hand operated portion f<1>, the limb f<2> being pivoted in a support b<2>, while the limb f<3> is attached to the clamping-plate g. The support b<2> is formed on a lug b<1> pressed out of the back b of the file, which is formed integrally with a cover piece c and base a, the back b being also formed with an opening b<3> to allow rotation of the member f<2>, which is guided by a link h secured at one end in a hole in the back piece. The limb f' is secured to the clamp by an extension e<1> which pases through a lug g<1> while the limb f<2> has also an extension which rotates in a hole formed in the lip c<1> of the cover c.
Patent GB-877655-A (GB)
Title: Railway car coupler and coupler operating mechanism
IPC: B61G7/14
Filed: 1959-06-08
Abstract: 877,655. Operating mechanisms for automatic couplings. NATIONAL MALLEABLE & STEEL CASTINGS CO. June 8, 1959 [June 9, 1958], No. 19484/59. Class 103(5). An automatic railway vehicle coupler if pulled out during operation may be prevented from dropping to the track by the mating coupler which is retained locked thereto by the non operation of a rotor shaft member controlling the lock In the pulled out position, Fig. 2, the upper surface 24a, Figs. 7 and 8 of the rotor 16 is engaged by the J hook 14 of the uncoupling rod 5, but as this surface is below or level with the rotary axis of the shank 18 then the rotor cannot be turned to unlock the couplers by the eccentric forces exerted in the Fig. 2 position. The eye 20 of the rotor is provided with a relatively weak wall section 30 so that continued movement of a pulled out coupler will cause the J hook 14 to break through the wall 30 and render the rotor unsuitable for re-use. The pulled out coupler will then remain locked to and be carried by the mating coupler.
Patent GB-444731-A (GB)
Title: Improvements in and relating to cinematographic apparatus
IPC: G03B41/08
Filed: 1935-07-08
Abstract: 444,731. Kinematograph apparatus. WOOD, A., 16, Haslemere Avenue, West Ealing, London. July 8, 1935, No. 19523. [Class 97 (i)] In continuous-feed apparatus, the portion of the film being exposed is held flat and is moved about an axis parallel to its plane, compensation being effected by a reflector rotated about the said axis at half the angular velocity of the film. Fig. 1 shows spaced polygonal discs 1, carrying the margins of a film 8, and a mirror 2 rocked about the axis 4 of the discs by an arm 3 engaging a cam wheel 5. The discs 1. and cam wheel are connected by gearing 9, and the teeth of the cam wheel permit a quick return of the mirror. In a modification, Fig. 4, the arm 12 extending from the mirror 2 is a spring and is turned by successive engagement with detents on a wheel 13 rotated at half the speed of the discs 1. The arm 12 is disengaged from each detent in turn by a trip 20 and then returns to engage the next detent. An intermittent shutter may be provided or omitted.
Patent GB-189087-A (GB)
Title: Improvements in or relating to variable-speed power transmission gearing
IPC: F16H29/04
Filed: 1922-07-17
Abstract: 189,087. Lavaud, D. S. de. Nov. 12, 1921, [Convention date]. Addition to 184,447. Variable-speed gearing according to the parent Specification comprises ratchet gearing driven from swash mechanism, the inclination of which changes automatically with the load being controlled by means such as a spring. According to this invention, the slope of the swash mechanism is altered by moving the centre thereof. The controlling-spring 19 is set between a collar 51 on the driving-shaft 3 and a non-slidable revoluble barrel 46 to which the carrier 8 of the swash ring 10 is connected by a joint 39. The trunnion 7<a> and shaft 3 move longitudinally as the speed varies. A pedal 54 may be used as an additional or alternative control, specially upon motor-vehicles. The shaft 3 is connected to the barrel 46 by a key 50. The ring 10 is held against rotation by a stud 12 moving in a guide 13, which in this pase is not the arc of a circle. Ratchet rings 23 oscillated by rods 21 may drive a sleeve 59 common to two axle parts 24, 24<1> separately driven through ratchet clutches 58<1>, 58<11>, and separate reversing- gears such as 60<11>. Specification 189,109 is referred to.
Patent GB-659059-A (GB)
Title: Improvements in and relating to apparatus associated with telegraph circuits
IPC: H04L25/20
Filed: 1947-07-22
Abstract: 659,059. Code telegraphy. CARTER, R. O. July 22, 1947, No. 19645. [Class 40 (iii)] In telegraph apparatus comprising a relay to be operated by direct-current line signals, undesired or fortuitous operation of the relay by interference current is eliminated or reduced by associating with the relay a bottom limiting device comprising one or more biassed diode elements serving to prevent operation of the relay by line signals below a predetermined value, said value being less than the normal value of the telegraph signals. In the arrangement shown in Fig. 1, a rectifier bridge B comprising elements X1, X2, X3, X4 is connected at P, Q in parallel with the relay and its series resistance RI. The opposite corners of the bridge are connected by resistances R to voltages + V, - V, which may be provided by the telegraph battery. When current is absent from the telegraph line, a current V/2R passes through the pairs of rectifiers X1, X2 and X3, X4. If current is received from the line, it will divide equally between the right-hand and left-hand halves of the bridge, and if the magnitude of the divided current is less than that passing through the arms of the bridge all the rectifiers remain conducting and the effective resistance between the points P, Q is zero, so that current does not flow through resistance R1 and the relay. If the divided line current is greater than the current normally flowing through the rectifiers X1, X2, X3, X4 the excess current would flow through the rectifiers X2, X3-if the relay and resistance R1 were assumed to be disconnected-the path being from the point P to the point Q through rectifier X2, battery and the rectifier X3 with the resistances R in series, so that the effective resistance presented by the bridge is 2R. If the resistance R is arranged to be substantially greater than R1, the greater part of the excess current will flow through the relay. In a further arrangement, Fig. 2 (not shown), a static relay for keying a signal frequency in response to D.C. signals is arranged to have the same impedance for marking and spacing currents by the provision of predetermined resistances in parallel with two of the rectifiers of a similar bridge, to the bridge B of Fig. 1, which also functions to withhold interfering currents from the relay. In a further embodiment, Fig. 3, the relay is disposed between the line and appropriately poled rectifiers M individually connected to voltage sources + V, - V, the arrangement being such that the relay is operated solely by positive or negative voltages numerically greater than the value V which is predetermined in accordance with the magnitude of the interfering currents whose effect is to be eliminated.
Patent GB-668611-A (GB)
Title: Universal feed cover-plate for sewing machines
IPC: D05B73/12
Filed: 1950-08-05
Abstract: 668,611. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 5, 1950, No.19656/50. Class 112. Work-supports; needle guides; lock-stitching. -A feed cover-plate adapted for use with various kinds of domestic machines for darning or other operations in which the usual mechanical feed of the work is not desired, comprises a base 11, with an extension 12 adapted to be adjustably secured to the bed of the machine by screws 13 in the holes normally provided for securing various attachments and with a dished portion 15 to support the work above the feed-dogs, a cut-out 26 being provided for access to the loop-taker in a vibrating-shuttle machine, and a detachable bridge 20 carrying bobbin-case rotation-restraining means for use in machines requiring such means mounted beneath the throat-plate. In the form shown the cut-out is closed by a cover 27 hinged to the base 11 at 28; the dished part 15 of the feed cover-plate has a needle hole 16, a tubular needle-guide on a plate member 18 being fixed below it, and a clearance aperture 17 for a work-piercer of a hem-stitching attachment. The bridge 20 carries spaced blocks to which are secured cushioning springs 25 receiving between them a finger on the bobbin-case.
Patent GB-147358-A (GB)
Title: Improved means for driving helicoidal fans
IPC: F23L17/00
Filed: 1919-08-11
Abstract: 147,358. Prat, G. J. Aug. 11, 1919. Driving-gear; pumping- machines and fan apparatus.-The fan rotor a is supported either on a crown bevel-wheel which runs on a series of bevel pinions one of which is driven by any suitable means, or on a peripheral crown g on roller bearings on a circular track h. The rotor a, shown in Fig. 3, carries on its periphery the armature i of an electric motor, of which the field winding j is fixed on the brackets supporting the rotor. Lagging n is provided to reduce the heating nf the motor by hot gases being pumped. An aperture m on the underside of the rotor provides an inflow of air over the motor and prevents leakage outwards of acid gases, which may be pumped.
Patent GB-1335652-A (GB)
Title: Electric switch
IPC: H01H13/14
Filed: 1972-04-28
Abstract: 1335652 Momentary contact switches; partly magnetic INTERNATIONAL BUSINESS MACHINES CORP 28 April 1972 [29 June 1971] 19817/72 Heading H1N In an electric switch having a flexible contact carrying member 32, Fig. 2, engageable with conductive lands on a fixed substrate 31, an actuator plunger 34 on a spring 35 releasable from a cocked position, Fig. 1 (not shown), is made of an elastic material and comprises a central columnar portion 50 (Fig. 3) which projects through an aperture in a plate 36 to operate the contacts, but has its movement limited by a peripheral shoulder portion 51 engageable with the face of the plate 36. The arrangement is such that the force on the contacts is limited and is substantially independent of the loading on the spring blade 35. Partly magnetic switch.-Prior to operation the spring 35 and plunger 34 are initially held away from the contacts by a cocking lever 21 which is normally engaged under the end of the spring 35 (Fig. 1, not shown). Depression of a manually operated key 10 on lever 11 moves lever 11 downward about fixed pivot 12 against the action of a return spring 13 whereby abutments 15, 20 cause the cocking lever 21 to pivot downwards about pin 22 to release the spring 35 whereby the switch 30 is actuated to the position shown in Fig. 2. Resetting of spring 35 takes place independently of the release of the key 11 first under the action of a return spring of magnetic armature 41 when solenoid 42 is de-energized whereby the lever 21 moves to the left until abutments 15, 20 are disengaged, whereupon the lever 21 is moved by spring 26 (upwards and to the right) behind spring 35. The abutment 15 is pivotable anticlockwise to permit passage of the abutment 20. Release of the key 10 permits the abutment 15 to move into alignment with the abutment 20 under the action of its own restoring spring.
Patent GB-459665-A (GB)
Title: Improvements in photographic developers
IPC: G03C5/30
Filed: 1935-07-12
Abstract: 1-p-Chlorophenyl-3-methyl-5-pyrazolone is prepared by mixing p-chlorophenylhydrazine and ethyl acetoacetate in the absence of a solvent, removing the water produced, and heating to split off alcohol.
Patent GB-942870-A (GB)
Title: Shampoo containing amine oxide
IPC: C11D1/00
Filed: 1960-06-07
Abstract: Aqueous shampoo compositions comprise by weight (a) 5-20% of a water soluble detergent of formula RZXM where R is an acyclic hydrocarbon radical of 8-18 carbon atoms of which at least 50% comprise 12 carbon atoms, Z is an intermediate linkage (as the term is used and understood in "Surface Active Agents and Detergents," by Schwartz, Perry and Berch, Interscience Publishers, New York, 1958, Vol. II), X is an anionic group and M is a cation to neutralize the charge of X, the RZXM being such that 0-15% of the composition is a non-ampolytic detergent and 0-10% is ampholytic detergent; (b) 2-15% of an amine oxide of formula R1R2R3N-->O wherein R1 is an alkyl radical of 10-16 carbon atoms of which at least 50% have 12 carbon atoms and R2 and R3 are both methyl or ethyl, and (c) at least 60% water, the weight ratio of (b) to non-ampholytic detergent, (a) being greater than 1 : 2 and the pH of the composision being 6.5-8.5 but high enough to prevent a precipitate of interacted components (a) and (b).  Suitable non-ampholytic detergents (a) are an alkyl glyceryl ether sulphonate, an alkyl monoglyceride sulphate, a condensate of a fatty acid with a hydrolysed protein, a fatty acyl sarcosinate, a fatty acyl isethionate, or an N-methyl-N-acyl tauride, but is preferably an alkyl polyethenoxy ether sulphate containing 1-5 moles per mole ethylene oxide.  Suitable ampholytic detergents (a) are an alkyl b -iminodipropionate or an imidazole derivative of formula <FORM:0942870/C3/1> but is preferably an alkyl b -aminopropionate. When an ampholytic detergent (a) is present, part or all of the total anionic detergent content (a) may be replaced by anionic detergents which may be non-acyclic or contain no intermediate link Z; such detergents are, for example soap, alkylbenzene sulphonate, alkylphenyl polyoxyethylene sulphate or alkyl sulphonate, but alkyl sulphate is preferred.  The cation in all the anionic detergents mentioned are suitably alkali metal, magnesium, ammonium, quaternary or alkanol-ammonium, or magnesium; sodium, potassium and triethanolammonium are preferred.  R2 and R3 in the amine oxide (b) are preferably both methyl, and groups R in (a) and R1 in (b) are both preferably derived from coconut oil.  Coconut diethanolamide, sequestrants, e.g. tetrasodium ethylenediamine tetraacetate, citric acid to control the pH, ethanol, perfume and colour may also be incorporated.
Patent GB-240608-A (GB)
Title: Improvements in, and in the manufacture of, races for roller bearings
IPC: B21D53/10
Filed: 1924-08-25
Abstract: 240,608. Wolseley Motors, Ltd., and Boden, O. Aug. 25, 1924. Making bearings.-Race rings for ball or roller bearings are formed by punching out a disc h, Fig. 8, from sheet metal, forming the disc into a cup j, Fig. 10, punching at the bottom thereof, and submitting the article k, Fig. 12, so produced, to one or more operations in a press to cause the metal thereof to flow throughout the whole section to a different cross-sectional shape and thickness, the operations being performed in a die by a shouldered punch or by a plain punch fitted with a sleeve. For the inner race ring of a conical roller bearing the article k, Fig. 12, passes successively through the stages shown in Figs. 13 - - 15, the shoulder or sleeve of the punch pressing upon the edge n of the ring to cause the metal to flow to the desired shape. The additional flange t may be pressed by using the shouldered punch and a sectional die or it may be formed by rolling in known manner.
Patent GB-167471-A (GB)
Title: Improvements in speed change mechanism for cycles
IPC: B62M9/1246
Filed: 1921-07-26
Abstract: 167,471. Bouillier, C. Aug. 5, 1920, [Convention date]. Chain gearing, variable-speed. - In variablespeed mechanism for cycles, of the kind wherein the chain c, Figs. 1 and 2, is adapted to be transferred from one pinion to another of a series 1 - - - 3, the transference is effected by the axial movement of an auxiliary pinion b<1> around which the chain is passed, the movement of the auxiliary pinion being brought about by backpedalling followed by forward pedalling. The controllable auxiliary pinion is carried by a sleeve b having an internal tooth l, Fig. 4, and, in the forward direction of rotation, this tooth can depress, and slide over, a spring-controlled pawl n on a ring h, whereas, in the backward direction, it engages with the pawl in such a manner as to impart rotation to the ring. When the chain is in engagement with one of the pinions 1 - - 3, a pawl i carried by the ring h is engaged with one or the other of the apertures A - - C in an inner sleeve f and with a notch D in the fixed central stem or axle e, e<1>. On back-pedalling and consequent backward rotation of the ring h, the pawl i is raised clear of the notch D and aperture A (say) and carried round until it snaps into the next aperture C (say) as in Fig. 6, and then, if forward pedalling is resumed, the engagement of the tooth l with the pawl causes forward rotation both of the ring h and the sleeve f until the pawl snaps into the fixed notch D, when the sleeve b is again freely rotatable with respect to the ring and the inner sleeve f. Owing to the engagement of a grub-screw o upon the sleeve f with a helical slot H in the fixed axle, when the sleeve is rotated forwardly it is simultaneously moved laterally, carrying with it the outer sleeve band the ring h, and in this way the chain is carried laterally out from engagement with one pinion into engagement with another of the pinions 1 - - - 3. A pinion d mounted on a spring-controlled arm d<1> takes up any slack in the chain.
Patent GB-1031573-A (GB)
Title: A fastener for holding an elongate member such as a cable to a stud
IPC: F16B2/24
Filed: 1964-05-14
Abstract: 1,031,573. Clips; stud and socket fastenings. A. RAYMOND. May 14, 1964 [May 16, 1963], No. 20145/64. Heading E2B. A fastener 10 for holding an elongate member such as a cable to a stud comprises a substantially flat base 11 and a pair of arms 12, 13 extending upwardly to one side of the base, wherein the base 11 is formed with two longitudinally spaced teeth 15 which are sheared and bent from the base and the transverse end edges 15a of which define a hole adapted to receive a stud and permit the stud to pass through the hole in one direction and hinder movement of the stud through the hole in the other direction and wherein the arms 12, 13 extend first inwardly towards one another and are then bowed to form, in co-operation, a part-cylindrical member engaging portion positioned above the hole in the base. In the embodiments shown the edges 15a of the teeth 15 are curved to receive the cylindrical stud in the hole and triangular edge portions 15b of the teeth are bent upwardly. In a second embodiment, Fig. 8, resilient tongues 18 are sheared and bent from the arms 12, 13. Apertures 20 are formed in the lower portions of the arms 12, 13 to allow the jaws of a pliers like tool 19 to engage the teeth 15 and free the fastener from the stud 16 after it has been secured thereto.
Patent GB-498054-A (GB)
Title: An edge cutting attachment for lawn mowers
IPC: A01G3/06
Filed: 1937-07-21
Abstract: 498,054. Lawn-trimmers. GOLDUP, C. E. July 21, 1937, No. 20159. [Class 6 (ii)] A device for cutting the edges of lawns consists of a star-shaped cutter 7 and a fixed blade 8 mounted on a bracket 1 which is pivoted on a rotary spindle 2 of a lawn-mower. The cutter is driven by gearing or a chain 9 engaging a sprocket 10 on the spindle 2. The inclination of the bracket and the height of the cutter can be varied by swinging the bracket about the spindle 2 by means of a rod 11 which can be fixed in various positions by a rack and pawl. A clutch may be interposed between the spindle 2 and sprocket 10.
Patent GB-854374-A (GB)
Title: Cathode-ray tube scanning apparatus
IPC: H01J29/80
Filed: 1959-06-12
Abstract: 854,374. Electron beam deflecting apparatus. HAZELTINE CORPORATION. June 12, 1959 [July 17, 1958], No. 20186/59. Class 39(1). A deflection coil system for a television cathode-ray tube has an auxiliary four-pole D.C. winding 15 disposed between the scanning coils 11, 11, 12, 12 and the yoke 13 in order to augment the horizontal deflection. The coil sides of the auxiliary winding may be distributed sinusoidally or uniformly-through four angular regions about the tube where the angle α = 30 degrees, this latter distribution approximately in effect the ideal sinusoidal distribution. The coils of the auxiliary winding are spirally wound in reverse sequence and connected in series. The theory is given. Specification 500,502 is referred to.
Patent GB-412424-A (GB)
Title: Improvements in or relating to means for detecting faults or defects in a running yarn, thread or the like
IPC: B65H63/06
Filed: 1933-07-17
Abstract: 412,424. Detecting thin and thick portions in travelling yarns. TENNANT, W. J., 111, Hatton Garden, London.-(Universal Winding Co. ; 95, South Street, Boston, U.S.A.) July 17, 1933, No. 20197. [Class 120 (ii).] A device for detecting and seizing thin places in running yarns comprises a gauging device which releases thin portions of yarn so that the yarn changes its course and engages separate seizing means which arrest the yarn ; the device is also actuated by enlargements on the yarn. Yarn y passes between friction discs 11, 12, under a guide 45 through the gauge 35 and under a guide 66. The gauge 35 comprises two frusto-conical members 35, Fig. 5, adjustably held by screws 37, and spaced so that the yarn y slips through the slit, as in Fig. 3, if a thin place occurs, the yarn then catches the toothed end surface 54 of the pivoted lever 50 which is dragged round so that it nips the yarn against the guide 45. Slubs also engage the toothed surface 54 and are similarly nipped. A guard 60 pivoted at 61 and counterbalanced, prevents the toothed face 54 from being engaged by stray fibres. The position of the lever 50 is adjustable by means of the screw 56.
Patent GB-575067-A (GB)
Title: Clutches
IPC: F16D41/20
Filed: 1943-12-03
Abstract: 575,067. Free-wheel clutches. DODWELL, J. M. Dec. 3, 1943, No. 20274. [Class 80 (ii)] A free-wheel clutch comprises driving and driven members 5, 7 on shafts 6, 8 respectively with a strip of flexible and elastic material 9 arranged in the annular space between these members, one end of which is secured to a member 12 keyed to member 5 whilst the other end is free. On rotation of member 5 in the direction x the strip 9 is longitudinally compressed between key 12 and the free end of the strip which is in frictional contact with the member 7 assisted by a wedging roller 41. The compressed strip expands radially and laterally to fill the annular space and transmits the drive by friction. On over-run of the member 7 the strip resumes its normal shape and withdraws from contact with member 7. An overload device comprises an annular channelshaped member 15 which is a push fit within the member 7 and which is adapted to slip on overload. The strip 9 may be anchored to member 7 instead of member 5 and may be. provided with stretch limiting cords 11.