baber/WOPTO huggingface dataset:
Patent GB-776088-A (GB)
Title: Improvements in or relating to staples
IPC: B25C1/02
Filed: 1955-03-03
Abstract: 776,088. Wire staples. SPOTNAILS, Inc. March 3, 1955 [March 4, 1954], No. 6304/55. Class 89 (2). A staple 5 is formed with knife-edges 13 at its points which are oppositely-inclined to compel the legs 8 of the staple to follow paths which diverge in the fore-and-aft directions when the staple is driven into hard material. The staple may be formed from soft steel-wire flattened at the inner and outer sides 9 of the legs, and the edges 13 are oppositely directed at angles of not less than 19 degrees and not more than 31 degrees to a plane normal to the axes of the legs to produce the desired fore-and-aft divergence. Lateral divergence, away from the toeing-in attitude of the staple in the driving machine, is also provided by inclining the edges 13 outwardly. The staples may be adhered together in the form of a " stick."
Patent GB-893344-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21L4/00
Filed: 1959-02-24
Abstract: 893,344. Switch cases. LAM, L. F. June 5, 1959 [Feb. 24, 1959], No. 6341/59. Class 38 (5). [Also in Group XI] An electric lamp is fitted with a bulb having two filaments and with a switch mechanism including a contact strip which can be moved into either of two positions in each of which it is connected to one of the filaments and a movable switch member for closing the circuit. One support of each filament terminates in a separate contact on the bulb, these contacts being engaged by tongues 30<SP>1</SP>, 31<SP>1</SP> on two metal rings 30, 31 insulated from one another and from the bulb socket 17 on which they are mounted by rivets 28. The side of the torch body 10 carries a switch casing 36 slidable thereon by rivets 37, 38 passing through slots in the body and secured to a metal strip 43 insulated from the body and having near one end a projection 46 which can be moved into contact with either of the rings 30, 31. The strip 43 is formed with four spaced tags 53, 54, 55 and 56, projecting into the casing 36. A slider 41 is mounted so as to move into three positions defined by humps on the top of the casing 36 engaging a projection 49 on a bow spring inside the slider. In one of these positions the circuit is open; in the second it is closed by a contact 62 operated by a pressbutton 47 engaging the tag 53; and in the third by a contact 63 engaging the tag 56. The rivets 28 are connected by a member 29 to the positive terminal of a battery, the other terminal being connected to the body of the torch.
Patent GB-397563-A (GB)
Title: Improvements in apparatus for measuring electrical resistance
IPC: G01R27/02
Filed: 1932-03-02
Abstract: 397,563. Resistance measurements ; current meters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London. TURNER, H. C. and SHERWIN, A., Peel Works, Silk Street, Salford, Manchester. March 2, 1932, No. 6353. [Class 37.] An instrument for directly indicating the value of a resistance comprises a full-wave thermionic valve rectifier s'upplying a substantially constant unidirectional voltage to a measuring instrument and the resistance under test. A transformer 1 has two secondary windings 2, 4 connected respectively to the anodes and cathode of a rectifying valve 3, which suppliesa unidirectional voltage to a circuit including the moving coil 9 of a milliammeter, resistances 7, 8, and the resistance under test, which is connected between terminals 6. A condenser 5, with or without an inductance in one of the direct-current leads, is provided for smoothing the rectified voltage. The scale 10 is calibrated at one end in thousands of ohms and at the other end in megohms. In order to compensate for variation in voltage of the alternating-current mains, the resistance 8 is adjustable to bring the pointer to zero when the terminals 6 are shortcircuited. The instrument may be adapted for different mains voltages, for example by the provision of a variable magnetic shunt for the magnet of the milliammeter, or a variable shunt for the coil 9, or a voltage adjusting resistance or tappings for the transformer 1. The meter may be adapted for use at more than one voltage, e.g. 500 and 1,000 volts, to provide more than one range. The whole apparatus is arranged in a portable box with a recess for the testing leads.
Patent GB-513160-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R21/02
Filed: 1938-03-01
Abstract: 513,160. Microphones. McMILLAN, D. March 1,1938, No. 6394. [Class 40 (iv)] A variable-resistance microphone or transmitter of the kind in which carbon or other conducting granules forming one or more current paths between electrodes are arranged to be agitated in response to applied sound waves by a mechanical modulating system which may comprise an electrode, is constructed and dimensioned in such a way that in the normal position of use of the transmitter or microphone and in so far as the granules contained in a hypothetical cylinder coaxial with the axis of the electrodes and of a diameter equal to the maximum diameter of the modulating member are concerned, the static horizontal force acting on an individual granule is not greater than SP 1 /0.7N where S is the effective area of the-diaphragm in sq. cms P 1  is the lower limit of sound pressure in dynes per sq. cm. for which the transmitter is designed to give an adequate and level response over the useful frequency range and N is the number of granules in contact with the surface of the moving electrode. The electrodes are shaped so that their greatest projection into the granule chamber is along the common axis of the electrodes and so that the distance between the opposing surfaces of the electrodes increases with the distance from the common axis in the direction of increasing static force. As shown in Fig. 1 a granule chamber 1 having a filling of granules occupying not more than about 80 per cent. of the available volume of chamber has a fixed electrode 7 and a hemispherical electrode 5 of graphite mounted in a cup 6 attached to to the diaphragm 3. The granule chamber is closed by silk washers 9 and a sealing disc 13 of paper retained by a spring ring 10. A conical member 11 located behind the diaphragm and formed with holes 12, which may be covered with Swiss silk, damps the oscillations of the diaphragm 3 at its resonant frequency. The length of the granule chamber is preferably between 0.5 and 1.5 times its diameter and the diameter of the electrodes is not greater than 0.7 times the diameter of the granule chamber. The electrodes may be conical with rounded apex portions or the moving electrode may be conical with the fixed electrode cylindrical and having a plane end surface. The angle at the apex of the cone is preferably about twice the angle of repose of the granules used in the chamber.
Patent GB-266908-A (GB)
Title: Improvements in automatic sale apparatus
IPC: G07F11/20
Filed: 1926-03-08
Abstract: 266,908. Jensen, C. March 8, 1926. Coin action, mechanical-connection; testing coins.-In a coin-freed article delivery apparatus, the operating bar 1, Fig. 1, which is moved inwardly by pressing on a button 2 to release, when a coin is inserted, the catch 26 of the door 27 of a container or of a delivery drawer, is normally pressed out by a spring 11. When the bar is pressed in, the spring 11 is flexed laterally and, by pressing against an extension 16, opens the movable side 14 of a coin shoot 12, thereby clearing the shoot of rejected coins or discs. The bottom rail 7 of the shoot is formed with incisions 28, Fig. 3, providing sharp edges which make impressions on discs of soft metal, such as lead, thereby preventing those discs from falling down to the article releasing position. A proper coin 6 forms a connection between the end 5 of the bar 1 and a stop 8 on the arm 20 of a lever 19, 20, which is moved against the action of a spring 23 to release a hook 25 on the end of the arm 19 from the catch 26.
Patent GB-546163-A (GB)
Title: Lubricating means for sewing machine loop-takers
IPC: D05B71/00
Filed: 1941-05-22
Abstract: 546,163. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). May 22, 1941. No. 6566. [Class 112] The vertical shaft of a rotary hook is hollow and contains a stationary tube 49 filled with a wick 55 which takes oil from a reservoir 52 through holes 54 in the tube and lifts it to an annular space 42 in the base of the hook body. Thence, the oil passes by bores 44, 46 to the bobbin-case raceway. The hook-shaft is supported by ball bearings covered by discs 32, 38 carrying felt pads 33, 39. The bearings are carried in a bracket 22 clamped upon a sleeve 24 surrounding the hook driving shaft 26.
Patent GB-818167-A (GB)
Title: Machine for the manufacture of articles from fibre pulp
Inventor: HARTMANN LOUIS MARTIN
IPC: D21J7/00
Filed: 1957-02-27
Abstract: 818,167. Moulding fibrous articles. BRODRENE HARTMANN A. S. Feb. 27, 1957, No. 6633/57. Class 87(2). [Also in Group XXX] Relates to a pulp-moulding machine comprising a rotatable carrier 18 for suction dies 38 which are moved through a vat 40 containing liquid pulp, and at least two other rotatable carriers 20, 22 for transfer dies 42, 50 by which the blanks taken up on the suction dies are transferred successively to a depositing place where they are thrown off onto an endless conveyer 52 which carries them through a kiln. According to the invention, the conveyer consists of trays 58 which are suspended on chains 55 and are horizontal at and near the depositing place, and the arrangement is such that when a blank is being thrown off the diecarrier it is located a short distance vertically over and parallel to a tray on the conveyer, so that the still moist blank is not distorted on impact with the conveyer. The .trays are freely swingable and constantly kept horizontal by means of counter-weights 60. The conveyer 52 and the rotating members are driven from the same electric motor, the gearing being so constructed that the peripheral speed of the die 50 is equal to the speed of the trays 58. The distance between the die and the tray is made adjustable by mounting. the two front chain wheels 56 on a frame 64 which is swing- able about a pivot by rotation of a shaft 88 which through gearing 92 rotates screws 94 and so raises or lowers the frame 64. The chain wheels 56 are attached to gear wheels 76 which engage gear wheels 78 fixed to a shaft 82 mounted on the main frame. This shaft is driven from a motor-driven chain wheel 34 mounted loosely on the shaft 82, by means of a worm-wheel 100 fixed to the chain wheel 34, a worm 102 adjustable by a handle 118, and a clutch 104, 110 one part of which carries the worm. When the distance adjustment is made, the gear wheels 76 will roll on the gear wheels 78, resulting in a movement of the chains 55 and thus a phase displacement of the trays 58. To adjust the phase to the desired value, the worm 102 and worm wheel 100 are rotated, so as to rotate the shaft 82 and chain wheels 56 in relation to the stationary chain wheel 34.
Patent GB-974507-A (GB)
Title: Rocker joint for link chain
IPC: F16G5/18
Filed: 1961-02-23
Abstract: 974,507. Chains. W. REIMERS. Feb. 23, 1961 [March 14, 1960], No. 6658/61. Heading B8A. For chains consisting of lamellar link plates, a rocker link joint of the kind wherein a pair of pins which can roll against each other are inserted into aligned bores in the plates of adjacent links includes means to resist relative movement of the plates in a direction per- "pendicular to the plane containing the axes of the bores of successive joints. In the form of Fig. 2, this means comprises a hollow cylindrical cage 6 having peripheral apertures 7, through which the pins 1 project to engage the bores 4 of the link plates, and webs 8 which engage portions of the bores on opposite sides of the said plane. In the form of Fig. 8, the cage 11 is of uniform generally C-shaped cross section and only one of the pins directly engages the bores. In other forms (Figs. 3 and 4, not shown) the cage is dispensed with and its function performed by arcuate extensions if one pin which partially embrace the other pin in the same general manner as the cage of Fig. 8.
Patent GB-854397-A (GB)
Title: Improvements in belt and gear drive
IPC: F16H7/02
Filed: 1959-02-26
Abstract: 854,397. Positive-driving belts. UNITED STATES RUBBER CO. Feb. 26, 1959 [May 9, 1958], No. 6664/59. Class 80 (1). A positive power drive comprises gears 11, 12 having entirely straight dedendum teeth 14, meshed by entirely addendum involute teeth 13 on a flexible belt 10 of the kind described in Specification 618,172. The diameter of the base circle for setting out the involute profile of the belt teeth faces has a value equal to the product of the pitch diameter of the smallest gear-wheel with which the belt is required to mesh and the cosine of the assumed pressure-angle of the gear teeth. The Specification describes in detail a method of setting out the teeth of both the wheels and the belt. Flanges 16 on one gear retain the belt.
Patent GB-1499883-A (GB)
Title: Hydraulic driving system
IPC: F15B15/06
Filed: 1975-02-18
Abstract: 1499883 Hydraulic reciprocating motor systems JOY Mfg CO 18 Feb 1975 [1 March 1974] 6729/75 Heading F1A A hydraulic drive mechanism comprises a rotary output wheel 30 including circumferentially spaced pins 36, sequentially operated hydraulic piston and cylinder assemblies 40, 40a each having an arm 42 for engaging selective ones of the pins 36, and a valve 136 which controls the supply and exhaust of liquid to and from at least some of the cylinder assemblies 40, 40a and which is actuated by a control assembly 50 intermittently acted upon by the pins 36 and one of the arms 42. The valve 136 and assembly 50 control the piston and cylinder assemblies 40, a duplicated arrangement (not shown) being provided for the assemblies 40a. In the position shown the assemblies 40 are nearing the ends of their extension strokes under the action of the liquid supply from a pump 134. The wheel 30 is thus being rotated due to the engagement between jaws 51 at the ends of the arms 42 and respective ones of the pins 36. As the wheel 30 continues to rotate (due to the drive being taken over by the assemblies 40a), the pins 36 disengage from the jaws 51 and the succeeding pins 36a advance into respective notches 54 in the arms 42. At the same time one of the pins 36, Fig. 5, engages a roller 128 on a lever arm 130, 120, 126, 108, whereby the latter turns counter-clockwise about a pivot 114 and changes over a pilot valve 106 and hence the valve 136. Powered retraction of the arms 42 of assemblies 40 therefore commences, the pins 36a co-operating with the notches 54 to deflect the assemblies 40 outwardly out of the paths of the succeeding pins 36a. This movement is permitted since the cylinders 41 of the assemblies 40 are fixed to a housing wall 74 via rubber mounting blocks (82). The outward movement of the arm 42 to position 42 causes a roller 53 to engage the lever arm portion 130 thereby maintaining the valves 106, 136 in their "retract" positions. As soon as the pins 36a pass the respective lips 73 of the arms 42, the assemblies 40 spring back to their positions shown and the valves 106,  136 return to their "extend" positions for the start of the next cycle.
Patent GB-808133-A (GB)
Title: Thread tensioning device
Inventor: JAKEMAN EDWARD ERNEST
IPC: B65H59/10
Filed: 1956-03-03
Abstract: 808,133. Tensioning devices. BRITISH NYLON SPINNERS Ltd. March 1, 1957 [March 3, 1956], No. 6745/56. Class 120(2). A thread tensioning device comprises a lower and a plurality of upper thread contacting surfaces, the upper surfaces being provided by a plurality of cylindrical members, together or in groups, capable of rotation about horizontal axes and adapted to impose a gradually increasing tension on the thread during passage through the device, and the lower surface being plane. As shown, a plate 1 carries spacing pins between which are laid cylinders 11, 13, 15. Side walls 17 prevent axial movement of the cylinders and end walls 19, 19<SP>1</SP> have apertures 21, 21<SP>1</SP> for passage of yarn 23 between the cylinders and the plate 1. The device may be pivoted about a horizontal axis to vary the tension in the yarn, and as shown is tilted with the left end lower than the right. For ease of threading yarn the walls 17, 19 may have a box member which carries the spacing pins and has a centre portion cut away to allow the bottom plate to protrude therethrough and to contact the exposed cylinders.
Patent GB-459467-A (GB)
Title: Process for the manufacture of vitamin preparations
IPC: A23L33/15
Filed: 1936-03-07
Abstract: Vitamin concentrates or synthetically produced vitamins are incorporated in carbonic acid-evolving compositions of the type containing substances of acid reaction such as tartaric or citric acids or acid sodium phosphate in conjunction with one or more carbonates, for example, sodium bicarbonate.  The vitamin concentrate in powder form may be added to a mixture of the other constituents, but preferably it is first mixed with part or all of the acidic constituent.  Thus, the vitamin concentrate may be added to a solution of the acid substance which is evaporated to dryness.  Or an alcoholic solution of the vitamin may be mixed with acid, a small quantity of water added, and the mixture evaporated to dryness.  In an example, a vitamin-containing fruit extract in alcoholic solution is added to tartaric acid, evaporated to a semi-fluid mass, and desiccated under reduced pressure at 40 DEG  C. whilst being stirred. Evaporation is carried out in the presence of an indifferent gas such as carbon dioxide or nitrogen.  Mixing of the product with the other constituent may also be effected in an indifferent atmosphere, and the preparation may be stored in such an atmosphere.  The vitamin is protected against decomposition by the acid, and also by the carbon dioxide atmosphere.ALSO:Vitamin concentrates or synthetically produced vitamins are incorporated in carbonic acid-evolving compositions of the type containing substances of acid reaction such as tartaric or citric acids or acid sodium phosphate in conjunction with one or more carbonates, for example, sodium bicarbonate.  The vitamin concentrate in powder form may be added to a mixture of the other constituents, but preferably it is first mixed with part or all of the acidic constituent.  Thus, the vitamin concentrate mass be added to a solution of the acid substance which is evaporated to dryness.  Or an alcoholic solution of the vitamin may be mixed with acid, a small quantity of water added, and the mixture evaporated to dryness.  In an example, a vitamin-containing fruit extract in alcoholic solution is added to tartaric acid, evaporated to a semi-fluid mass, and desiccated under reduced pressure at 40 DEG  C. whilst being stirred.  Evaporation is carried out in the presence of an indifferent gas such as carbon dioxide or nitrogen.  Mixing of the product with the other constituent may also be effected in an indifferent atmosphere, and the preparation may be stored in such an atmosphere.  The vitamin is protected against decomposition by the acid, and also by the carbon dioxide atmosphere.
Patent GB-252824-A (GB)
Title: Improved appliance for use with safety razors
IPC: A45D27/48
Filed: 1925-03-14
Abstract: 252,824. Kirkpatrick, R. K., and Kay, G. March 14, 1925. Knives, cleaning.-A sheet of celluloid, steel. millboard, or fibre a, Fig. 1, is folded back upon itself and provided on its inner faces with separate strips of material, some for drying and cleaning on others for sharpening the blade. The drying and cleaning strips c of boracic lint and the strips b of fine emery cloth are secured to the sheet a by an adhesive or by small rivets or eyelets. In the form shown in Fig. 4, the sheet a has two folds and two sets of operative faces which may, if desired, be adapted as in Fig. 1 for both cleaning and sharpening with different grades of emery cloth. Embossed strengthening ribs may be formed on the sheet a.
Patent GB-512488-A (GB)
Title: Improvements in or relating to "knitted" sliver padding
IPC: D06F83/00
Filed: 1938-03-07
Abstract: 512,488. Wadding. ANDREW, Ltd., E. W., and ANDREW, R. D. March 7, 1938, No. 7022. [Class 142 (iv)] Padding such as is used for covering laundry rollers &c. comprises two or more layers a, b of slivers secured together by stitching c and with the fibres in one layer at an angle to the fibres in the adjacent layer. Each sliver may be strengthened by loosely wrapping or braiding with spun threads or yarns, the slivers in each layer' may be stitched together prior to being arranged in layers, the layers may he stitched to a backing fabric d, or the stitching may be such as to serve as a backing as shown in Fig. 6. Specifications 316,047, [Class 142 (iv)], and 415,226 are referred to.
Patent GB-744680-A (GB)
Title: Improvements in locks or latches
IPC: E05B65/44
Filed: 1953-03-14
Abstract: 744,680. Locks and latches. ASH, J., ROGERS, A., and ROGERS, A. L. Feb. 15, 1954 [March 14, 1953], No. 7118/53. Class 44. In a lock or a latch a key or pivot pin 1 is provided with a head 1a which is fixed or retained in position between the face 4 of the lock or latch cast and a plate 3 which is held in position by a cover-plate 6, for example by spacing members such as lugs bent upwardly from the plate 3 or downwardly from the plate 6 or by retaining means on the surrounding casing. Indentations 7 on the plate 3 may hold it away from the bottom of the lock or the latch, the mechanism of which may be mounted on the plate. The pin 1 may be movable sideways in the hole 2 for self-aligning purposes.
Patent GB-1046490-A (GB)
Title: Process for the production of latices of chlorinated low pressure polyolefin copolymers
IPC: C08F210/18
Filed: 1964-02-21
Abstract: A latex suitable for coating, impregnating or bonding porous or non-porous materials is obtained by copolymerizing ethylene and an a -olefine optionally in the presence of one or more additional linear and/or cyclic monoolefines, diolefines and/or multiolefines, using a Ziegler catalyst in an inert solvent, washing out the catalyst residues from the resultant polymer solution, chlorinating the polymer in the solution, emulsifying the polymer solution in an aqueous solution of an emulsifier and removing the solvent.  The copolymerization is continued until the copolymer content of the solution formed is 1 to 25% by weight and the chlorination, which may be carried out by reacting chlorine with the copolymer at 10 DEG  to 75 DEG  C. under ultra-violet irradiation or by using sulphuryl chloride, is preferably carried out until the copolymer has a chlorine content of 3 to 30% by weight.  Lists of monomers, catalysts, solvents and emulsifiers are given.  In the Examples: (1) ethylene and propylene are copolymerized in carbon tetrachloride using as catalyst vanadium oxychloride and ethyl aluminium sesquichloride.  The catalyst is washed out with water and the polymer solution treated with chlorine and then emulsified using potassium oleate and potassium hydroxide, the carbon tetrachloride is distilled off and the mixture further concentrated by distilling off water or by creaming, e.g. by adding sodium alginate; (2) and (3) ethylene and propylene are copolymerized as in (1) but using as emulsifiers (a) an alkyl sulphonate and potassium hydroxide and (b) nonylphenol etherified with condensed ethylene oxide units, C12-alkylbenzene sulphonate and potassium hydroxide; (4) and (5) ethylene, propylene and dicyclopentadiene are copolymerized as in (1) and the emulsifier is (a) an alkyltrimethyl ammonium bromide and (b) tetradecyl pyridinium bromide, nonylphenol etherified with condensed ethylene oxide units and polyvinyl alcohol.