baber/WOPTO huggingface dataset:
Patent GB-720604-A (GB)
Title: Improvements in manufacturing terminals and fitting them to electric wires
IPC: H01R43/048
Filed: 1952-03-26
Abstract: 720,604. Making electric connectors. MARX, E. Sept. 2, 1952 [March 26, 1952], No. 7789/52. Classes 83 (2) and 83 (4). Punching, stamping.-A metal strip is formed by stamping into a length of interconnected terminals which are crimped to the ends of electric wires and are simultaneously severed from the strip, and the operations of forming, crimping and severing proceed at the same frequency. A die set for performing these operations consists of lower and upper die blocks 20, 24 respectively fixed to the table and ram respectively of a press. The die set has eighteen stations and each time it is opened the strip is moved one station to the right. At station 1, Fig. 5, the central hole is punched by a tool 31, Fig. 1. At station 4 transverse serrations are stamped by co-operating dies 34, 64. At station 7 the sides of the terminal are sheared by dies 37, 67. At stations 10, 12 the sides of the ferrule portion of the terminal are bent up in two stages by upper dies 40, 42 loaded by a spring 52, and lower dies 70, 72 which are raised by a rocker arm 80 operated from the upper block. At station 18 an electric wire 102 with the insulation removed from its end is fed manually or mechanically through a slot in a plate 100, the bared end is laid in the ferrule and a die 48 crimps the ferrule around the wire and simultaneously severs the terminal from the strip. Locating pins 32, 33, 36, 38, 39, 47 pass through the holes in the strip to hold it in position and a spring-loaded plate 88 presses the strip against the bottom dies. The waste metal falls through a funnel 22 in the table of the press. The upper block carries a cam 104 co-operating with a push rod 106 driving a step-by-step feed mechanism for the metal strip. The terminals may have a ring, hook, spade or cylindrical end and the ferrule may be formed with its longitudinal axis inclined to or transverse to the longitudinal axis of the strip.
Patent GB-582342-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: F16H3/00
Filed: 1944-04-26
Abstract: 582,342. Controlling reversing-gearing. HINDMARCH, T. April 26, 1944, No. 7800. [Class 80 (ii)] [Also in Group XXXIII] An arrangement for controlling the pressure fluid operated clutches of a number of separate forward and reverse gear units in an arrangement of the kind described in Specification 577,438 comprises a master control valve which has forward, reverse and neutral positions to control the pressure fluid from pumps a, b, c, through filters e, coolers f and pressure regulating valves g, to the forward and reverse clutches of the gear units so that they all operate in the same sense. As shown, the master control valve comprises two valve members o, p operated simultaneously by a single control lever q to control the pressure fluid to conduits o,l p<1> for operating the forward clutches, or conduits o<2>, p<2> for operating the reverse clutches. In the neutral position the valves o, p cut off the supply to both sets of conduits and pressure from conduits i, k is supplied to disengage both forward and reverse clutches. Isolating valves m, n are provided to enable any one or more of the gear units to remain disengaged and these valves are preferably mounted in or on the same casing as the master control valve.
Patent GB-725588-A (GB)
Title: Axially-operated friction brake
IPC: H02K7/12
Filed: 1953-03-20
Abstract: 725,588. Axially - operated friction brakes. DEMAG-ZUG GES. March 20, 1953 [April 19, 1952], No. 7806/53. Class 103 (1). In a friction brake with a stationary friction ring and a friction disc, which is rotatable and displaceable in the direction of its axis, resilient damping means made of a material with high internal friction (e.g. rubber) forms the support of one of the friction surfaces. Fig. 1 shows the invention applied to an electric motor 2 in which the armature is axially displaced under the action of a spring when the current is switched off, so that the friction disc 4, secured to the shaft 1 at an outer position beyond the bearing 3, engages the stationary friction ring 7 to brake the motor. As shown in Figs. 1 and 2 a rubber friction ring 5 is secured (e.g. by vulcanizing) to the friction disc 4 and friction lining 6 is likewise secured to the rubber friction ring 5. Other forms of securing the rubber friction ring 5 and the friction lining 6 to the friction disc 4 are described and illustrated and alternatively the resilient means may either be secured to the stationary friction ring 7 or, as illustrated in Fig. 5, provided close to the hub of the friction disc 4.
Patent GB-1213575-A (GB)
Title: Printing machines
Inventor: WIKE ALBERT FLORY
IPC: B41L7/00
Filed: 1968-02-16
Abstract: 1,213,575. Printing machine. ADDRESSOGRAPH - MULTIGRAPH CORP. 16 Feb., 1968 [16 Feb., 1967], No. 7854/68. Heading B6C. In a machine for impressing ledger sheets 58 with information presented on a movable transfer web 12 the decalcomania media of any particular piece of information is partially transferred to a relevant sheet 58 by heated co-operating platen press dies 22,24. Registration of the ledger to be impressed with the area of impression defined by the dies 22, 24, is effected by clamping the ledger sheet to a movable clamping carriage 28 which may be moved longitudinally and transversely of the table top 10 of the machine, stops being provided in both directions so as to correctly locate the position of the area of the sheet to be impressed between the dies. In order to see the information about to be impressed on the sheet an optical system is provided which comprises a lamp house 16, a glass covered opening 17 in the table top and a mirror 20. In order to clearly indicate the area of the ledger sheet which is to receive the next impression from the transfer web 12 a projector 60 movable both longitudinally and transversely of the table top is used, which throws a beam of light on to the ledger sheet.
Patent GB-199146-A (GB)
Title: Improvements in nets and in the process and machines for their manufacture
IPC: A01K75/00
Filed: 1922-03-17
Abstract: 199,146. Br÷cker, W. C. March 17, 1922. Net-making apparatus; netting.-Fishing &c. nets are made by crossing threads diagonally and securing some or all of the crossing places by means of the clamps shown in Figs. 2 and 3, the points 3, 5 of which are turned over. A support a carrying thread spools b is rotatably mounted on an horizontal shaft c on the free end of which is arranged an endless band or chain d passing over rollers and carrying eyes e through which the threads k pass. The support a and belt &c. d are rotated in unison. The crossed threads pass between guide ledges g and beneath a row h of stamps by which the clamps are secured to the crossing places. The finished net is passed round rollers i<1> - - i<111>.
Patent GB-883519-A (GB)
Title: Improvements in or relating to the manufacture of tapered rods from glass fibres
IPC: B29C70/52
Filed: 1958-03-11
Abstract: 883,519. Moulding fibre glass rods. COLUMBIA PRODUCTS CO. March 11, 1958 [July 5, 1957], No. 7871/58. Class 87(2). Glass fibres 7 are pulled by a device 17 through a polyester resin coating bath 2, a guiding ring 14, a separating and cutting device 4 and a die 15. The device 4 separates the fibres into an outer group of continuous fibres 28 and a core of fibres 29 whose bulk is progressively reduced by successive operation of cutting knives 24. The fibres emerging from the die 15 are compacted into a tapered rod by the application of "Cellophane" (Registered Trade Mark) tape 48 applied under tension. Any other method of compacting may be utilised. The pulling device 17 successively operates the knives 24. The tapered rod may have a solid core passed through the machine. Different tapers may be produced by varying the cutting of the knives 24.
Patent GB-160163-A (GB)
Title: An improved method of mounting and pivoting mechanical parts, more especially applicable to typewriting machines
IPC: B41J7/24
Filed: 1921-03-14
Abstract: 160,163. Devlaminck, R. S., and Gillant, M. C. N. March 13, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Type-lever actions.-In a method of pivoting levers on slotted guides, especially applicable to type-levers, the slotted guide is divided and formed with recesses for balls which are passed through holes in the levers. As shown in Figs. 2 and 3, a segment having slots c for guiding the type-levers d is formed in two parts a<1>, a<2> secured together by screws b, and the balls fare received by cylindrical recesses e in the part a<2> and are passed through holes in the type-levers. The slots may be formed in the bottom edge of the segment.
Patent GB-148601-A (GB)
Title: Improvements in or relating to aero-motors
IPC: F03D7/02
Filed: 1919-03-29
Abstract: 148,601. Janson, E. C. March 29, 1919. Screw motors; driving and transmission mechanism, special applications of; regulating. -A wind-wheel 1 geared to a shaft 4 drives a dynamo 8 geared to a shaft 6 through a gearing chain 5 which hangs in folds loaded by a main weight 9 and a counterweight 12. According to the force of the wind and the load on the dynamo, the main weight stays still, rises, or sinks, and normally a strap-brake 20, Fig. 3, for the dynamo is kept clear by a detent 15 holding its loaded lever 18. but, when the main weight touches the ground, the counterweight acting through a lever 13 and cord 14 trips the detent to let the brake be applied. When the main weight has been hauled up again, a projecting rod 22 resets the brakelever on the detent and also by striking a bellcrank shifts an axial rod 28 to open the sails 30. This bell-crank may be replaced by quick-action levers 25, 56 working pincers 26, which make a nut for a thread 27 on the rod 28. To utilize feeble wind, a variable ratchet feed, Figs. 7 and 9, may be interposed between the winder heel and the hauling shaft 6. The ratchet lever 38 is lifted by a cam 36 driven by the wind-wheel and normally drops back to a stop 45, but, with feeble winds, an interposed wedge 43 more or less reduces the feed, the wedge being attached to an arm 42 which carries a vane 46 pulled against the wind by a spring. The wedge may be replaced by a conical cam.
Patent GB-564009-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1943-05-20
Abstract: 564,009. Photographic objectives. KODAK, Ltd. May 20, 1943, No. 8043. Convention date, June 17, 1942. [Class 97 (i)] In an objective comprising four spaced simple elements, the outer ones, I, IV, being biconvex, with their outer surfaces more strongly curved than their inner ones, the inner elements II, III being nega. tive, and the total powers of the positive and negative elements being, respectively, between three and ten times the power of the objective, and be. tween 0.7 and 1.2 times that of the positive elements, the average refractive index of the negative elements is less than that of the positive elements by more than 0.08. The total power of the positive elements may be less than seven times the power of the objective, and the central air space S2 may be less than one-sixth of the focal length F of the objective, and less than 3.5 times the sum of the other spaces. The negative elements may have their more strongly curved surfaces facing rearwards. Other conditions for curvatures and materials, and complete data for one example, are set out. Specification 517,271 and U.S.A. Specification 1,620,337 are referred to.
Patent GB-313651-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic acids
IPC: C07C51/15
Filed: 1928-03-16
Abstract: 313,651. Dreyfus, H. March 16, 1928. Alkyl ethers of hydroxy-aliphatic acids are prepared by interaction of alkyl ethers with carbon dioxide. The reaction is effected at ordinary or elevated pressure, e.g. 50-300 atmospheres, at a temperature of 200-450‹ C., and in presence or absence of a. catalyst. The catalysts comprise inorganic acids or inorganic acids containing organic groups or acid salts thereof, e.g. boric, arsenic and phosphomolybdic acids, orthometa- and pyro-phosphoric acids, and acid aluminium phosphate Al2O312H3PO4; acidic oxides, e.g. aluminium, vanadium, and titanium oxides. Alkali alcoholates, e.g. sodium or potassium methylate or ethylate; and alkali formates, e.g. sodium formate. Catalysts which promote the synthesis of acetic acid from carbon monoxide and methyl alcohol are also specified. In the case of an inorganic acid, it may be employed in the form of a volatile ester, e.g. phosphoric acid methyl ester, which decomposes to the acid under the reaction conditions. The apparatus may be made of or lined with copper, gold, graphite, &c., iron being excluded; the presence of air is preferably avoided when using a phosphoric acid catalyst in copper apparatus. The alkyl ether may be submitted to reaction continuously with its production. According to the example, a mixture of dimethyl ether and carbon dioxide in the molecular proportions of 1 : 2-3 is continuously circulated under pressure through a heated reaction chamber filled with pieces of graphite or coke soaked in phosphoric acid: methoxy-acetic acid is recovered from the condensed products. Ethoxy-propionic acid results when diethyl ether is employed.
Patent GB-991595-A (GB)
Title: Improved electroluminescent device
Inventor: ACTON JOHN REGINALD
IPC: H05B33/12
Filed: 1960-03-08
Abstract: A light amplifier comprises a layer of photo-conductive material 14 in "Araldite" (Registered Trade Mark) having a number of parallel grooves cut therein, a layer of electroluminescent material 12 in "Araldite" (Registered Trade <PICT:0991595/C4-C5/1> Mark), a discontinuous layer of conductive material between the layers 12 and 14 comprising a number of patches 13 arranged in parallel rows such that the centre link of each groove in the photoconductive layer 14 lies along the centre line of a row of the patches 13, each patch 13 being of sufficient size to connect together electrically the two sides of a groove, means for applying a D.C. bias across each groove in the photoconductive material 14, and means for causing A.C. to flow through the photoconductive and electroluminescent layers in dependence upon the position and intensity of light incident upon the photoconductive layer.  The conductive patches 13 can be of mask-evaporated transparent gold or opaque aluminium and can be rectangular.  An opaque dielectric layer can be located between the electroluminiscent layer 12 and the photoconductive layer 14 and can be formed by spraying on a layer of black aniline dye in "Araldite" (Registered Trade Mark).  The transparent electrode 11 is formed by reactively sputtering cadmium metal on a glass layer 10 in an oxygen containing atmosphere. The electrodes 15 can be of evaporated gold and are connected together in circuit. The current response of the photoconductive material 14 is stated to vary roughly as the fourth power of the voltage.  It is stated that it does not matter whether the photoconductive material at the bottom of a groove is left in or is allowed to fall out provided that the conductive patches 13 overlap the edges of the grooves.
Patent GB-589898-A (GB)
Title: Diversity receiving system
IPC: H04B7/08
Filed: 1945-03-30
Abstract: 589,898. Radio receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 30, 1945, No. 8114. Convention date, March 30, 1944. [Class 40 (v)] In a diversity system, two signals (obtained either from two spaced antennµ or from a single antenna array due to different polarization effects) are applied respectively to two rectifiers, and portions of each of the two signals are applied in common to a third rectifier, and the outputs from all three rectifiers are applied in common to a utilization circuit. In Fig. 1, spaced antennµ 3 feed receivers 1, 2 comprising only high-frequency stages. Receiver 1. feeds full-wave rectifier 14, and receiver 2 feeds fullwave rectifier 16. In addition, receiver 1 feeds a coupling valve 5 and receiver 2 feeds coupling valve 6, the outputs of valves 5, 6 being fed in common to full-wave rectifier 15. Rectifiers 14, 15, 16 have a common load resistor 18 connected to a utilization device, not shown. An A.V.C. potential is taken from a tapping 21 on resistor 18 and is applied through filter 22, 23 and lines 24 to both receivers 1 and 2. When phase conditions are favourable between receivers I and 2, an additional output of energy is obtained from rectifier 15. Otherwise the arrangement gives the normal diversity reception for two antennµ, In a modification, Fig. 2 (not shown), three complete radio receivers having a common output are used. Two of the receivers are fed individually from the two antennae, and the third receiver is fed with combined energy from the two antennµ. In the arrangement shown in Fig. 3, the output from receiver 1 is fed directly through valve 40 and tuned transformer 46 to rectifier 50, and the output from receiver 2 is fed through valve 45 and transformer 49 to rectifier 53. Also the two outputs are fed in additive phase through parallel connected valves 41, 42 and transformer 47 to rectifier 51, and the outputs are fed in phase opposition through push-pull connected valves 43, 44 and transformer 48 to rectifier 52. Rectifiers 50 ... 53 have a common load resistor 37 feeding a utilization device, not shown. An A.V.C. potential is fed through filter 22; 23 to both receivers 1, 2. This arrangement operates similarly to Fig. 1 except' that an additional output is available from push-pull valves 43, 44 when the received signals are in phase opposition. Fig. 4 shows an arrangement in which instead of two spaced antennµ, there is employed an array 63, 64 of the kind described in U.S.A. Specification 2,186,422. With the connections shown, a horizontally polarized wave will produce opposite voltages at the ends of coil 65 and thus a signal in receiver 1 only. A vertically polarized wave will produce similar voltages at the ends of coil 65 and hence a signal in receiver 2. Thus, the relative strengths of signals in the two receivers will vary with changes in polarization. The two outputs are then treated similarly to the outputs from'the receivers 1, 2 in Fig. 1.
Patent GB-412714-A (GB)
Title: Improvements relating to wool gauges used in rug making
IPC: D04G3/02
Filed: 1933-03-17
Abstract: 412,714. Cutting wool into lengths for rug making. JONES, K. W., Ladock, Upper Mulgrave Road, Cheam, Surrey. March 17, 1933, No. 8135. [Class 142 (iv).] In making rugs by knotting short lengths of wool into canvas, the cut lengths of wool prepared on a wool gauge 1, Fig. 1, are received in a channel-shaped holder 2. This is placed on the gauge 1 after the wool has been wound thereon, the gauge being removed from the holder after the wool has been cut, leaving the cut lengths of wool on the holder as shown in Fig. 5 ready for use. The holder 2 may be of sheet metal with turned up corners 4, or of hard wood or a metal casing. The gauge 1 may be formed of bent back sheet metal with splayed out corners 8 to guide the wool cutting knife, which may be a wafer blade 10, Fig. 13, secured by bolts and nuts 12 in a folded over sheet metal holder. Or the wool may be cut by scissors, the gauge being shaped as shown in Fig. 9. The cutting device may be loose, or its holder may have inturned lips &c., 11<a> fitting over flanges 13 on the gauge, which may have a removable stop comprising a bolt at one end, and splayed out corners acting as a stop at the other end. The gauge may have one or more clips to receive the end of wool. These clips may be formed by tongues punched or cut and pressed out of the sheet metal of the gauge. The gauge may be formed of strips of wood. The blade holder may have antifriction rollers running along the edges of the wool gauge.
Patent GB-391960-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/38
Filed: 1932-03-19
Abstract: 391,960. Roller bearings. BRITISH BOCK BEARINGS, Ltd. and McNAUGHT, A. S., 120, Cornwall Street, Glasgow. March 19, 1932, No. 8221. [Class 12 (i).] A race ring of a bearing with conical rollers 5, 6 is formed of two rings 2, 3, which are held together by a split spring ring 7 sprung into L- shaped recesses 8 in the rings. Specification 353,787 is referred to.
Patent GB-980802-A (GB)
Title: Improvements relating to multi-phase oscillator circuits
Inventor: MACHIN KENNETH ERNEST
IPC: H03K3/51
Filed: 1960-03-09
Abstract: 980,802. Transistor oscillator circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 18, 1961 [March 9, 1960], No. 8329/60. Heading H3T. A multiphase square wave oscillator circuit arrangement comprises a plurality of linked magnetic cores, one per phase, each having a power winding and an output winding and an associated single individual electronic switching device, and wherein further windings are provided which are connected in the circuits of the switching devices in such a way that in operation, with the switching devices connected to the respective power windings and to a D.C. supply source, feedback voltages derived from the windings are effective to determine the sequence in which each switching device in turn is switched on and off, there being only one switching device on at any instant, so that A.C. power may be extracted from the output windings in a predetermined direction of phase rotation. In Fig. 1 a circular core H of rectangular loop magnetic material has three limbs A, B and C. Each of the limbs carries four windings for limb A a power winding Pa, a feedback winding Fa, a control winding Ca and an output winding (not shown). Each limb has a transistor Ta, Tb, Tc with its emitter connected to the junction of the power and feedback windings and its collector earthed. The base of the transistor is fed from a feedback winding plus a control winding from another limb e.g. Fa in series with Cc. A starting circuit comprising resistor R1, R2, Fig. 2, is connected in the base circuit of one of the transistors to initiate oscillation. Transistor Ta has just been switched on, the voltage V is applied across the winding Pa, magnetic flux builds up in limb A and divides between limbs B and C inducing voltages in windings Fa, Fb and Fc of such sense that transistor Ta is maintained conductive and Tb, Tc nonconductive. Also voltages are induced in windings Ca, Cb, Cc, the voltage induced in winding Cc will assist the voltage from winding Fa, the voltage induced in winding Cb will oppose that from winding Fc but as windings Ca, Cb, Cc have less turns the voltage from winding Fc will still be sufficient to ensure transistor Tc is nonconductive. When the core material saturates, the induced voltage decays and the magnetic flux then begins to collapse producing voltages in the various winding such that transistors Ta, Tc are nonconductive and Tb conducts, the major portion of the flux is now switched to limb B. A balanced three-phase output is taken from the device. A second embodiment, Fig. 5 (not shown), uses three separate single-phase transformers with the output windings connected in delta configuration, the output windings serving to link the cores. A third embodiment, Fig. 6 (not shown), has the output and power windings on a normal transformer core and the feedback and control windings are on a separate core of rectangular loop magnetic material. These later transformers, which may be auto transformers, are connected to the relevant power windings.
Patent GB-1188904-A (GB)
Title: Automatic Mechanical Variable Gear.
Inventor: BARTHOLOMEW FREDERICK CHARLES
IPC: F16H33/06
Filed: 1968-02-21
Abstract: 1,188,904. Variable-speed ratchet gear. F. C. BARTHOLOMEW. 29 Jan., 1969 [21 Feb., 1968], No. 8395/68. Heading F2D. One, three or more phased driving cranks 11 oscillate an arm 3, one-way mounted at 1 on a driven shaft 2, through a compression spring 9, providing speed-ratio adjustment automatic with load. The spring 9 is mounted on a connecting rod 6 sliding through a trunnion on the arm 3, and has a light adjustable return spring 10.