baber/WOPTO huggingface dataset:
Patent GB-149241-A (GB)
Title: Improvements in magnetic compasses
IPC: G01C17/00
Filed: 1920-07-12
Abstract: 149,241. Colvin, C. H. July 19, 1919, [Convention date]. Magnetic compasses.-In a liquid compass, particularly for use on aircraft, the card is provided with two sets of graduations one set 16 being on the upper surface and the other set 15 on the cylindrical surface of the card, and the two sets of graduations being so arranged that the north point of the one set coincides with the south point of the other. The graduations 15, 16 are read against diametrically opposite lubber lines 17, 18 respectively so that either reading indicates the course of the aircraft. The card is mounted on a pivot 14 in a liquid-containing bowl, the graduations 15, 16 being respectively read through the transparent side 9 and the transparent cover 10. The liquid in the bowl serves to damp out erratic movements of the card.
Patent GB-688936-A (GB)
Title: An improved control mechanism for temperature-sensitive or pressure-sensitive actuating devices, particularly for thermostatic electric switches
IPC: H01H37/20
Filed: 1950-08-25
Abstract: 688,936. Thermal switches. THOMPSON & CO. (SUNBURY), Ltd., R. E., and BENFORD, P. R. Aug. 21, 1951 [Aug. 25, 1950], No. 21095/50. Class 38 (v) [Also in Group XXIX] A "range" control or adjusting mechanism of a temperature-sensitive or pressure-sensitive switch comprises a ramp 14 and a rider 19 movable along the ramp to impart a movement, due to the lift of the ramp, to an adjustable setting member 3 for setting the temperature-sensitive or pressure sensitive element to operate at the desired temperature or pressure, the ends of the ramp being independently adjustable to set the extremities of the temperature or pressure range. In the Figs., the ramp is a bar 14 having its ends guided in slots 15 and adjustable by set screws 21. A control spindle 16 with a knob 17 carries the rider or pin 19 which may be moved along the bar 14 to cause a platform 3 to pivot about its supporting spindle 4 to adjust the position of a bimetallic strip 2. The strip 2 carries contacts 7 co-operating with fixed contacts 8 and an armature 10 co-operating with a permanent magnet 9 to provide snap-action. The strip 2 is adjustably mounted on the platform 3 in the manner described in Specification 628,010. Instead of the strip 2, a flexible metal bellows may be mounted on the platform 3 which may be slidably mounted.
Patent GB-1215204-A (GB)
Title: Improvements in motor control systems of magnetic tape transports
IPC: G11B15/48
Filed: 1968-05-03
Abstract: 1,215,204. Automatic control systems. POTTER INSTRUMENT CO. Inc. May 3, 1968 [June 8, 1967], No.21143/68. Heading G3R. In a magnetic tape transport whose reels 12, 14 are operated in on-off mode by a known buffer loop control system comprising members 28, 32, 36, 38, 40, 42, the capstan 22 is driven by a direct coupled, low inertia D.C. motor 44 which, during a rewind operation, is controlled by the position of the loops 24, 26 so that the motor runs at a high speed when the loops 24, 26 are respectively above the lower senser and below the upper senser and runs at a lower speed when either or both of the aforementioned loop conditions is or are unfulfilled. The armature of the motor 44 is controlled at constant voltage by a regulator, Fig. 2 (not shown) having a reference potentional to determine the voltage (and hence one motor speed) and having an input terminal 48e to which may be applied a signal for altering the voltage and thus providing another motor speed. This signal is applied through an AND gate 58 having two inputs, one of which is the output of another AND gate 56 supplied with signals from the lower and upper sensers respectively associated with the loops 24, 26. During a rewind operation, the gate 56 is enabled when the loops 24, 26 are respectivley above and below the lower and upper sensers and the gate 58 is enabled by the output of gate 56 and by a signal applied to terminal 48f from the tape transport controller, e.g. a computer. As a result a signal is applied to terminal 48e to cause the regulator to operate at a voltage producting the high motor speed. Movement of the loops 24, 26 respectively below and above the lower and upper sensers disenables the gate 58, removes the signal from terminal 48e and causes the regulator to operate at another voltage producing the lower motor speed. During rewind a normally-conducting transistor 64 is cut off to reduce the field currents of the motor 36, 42 controlling the reels 12, 14. During a winding operation the voltage regulator is clamped to run the motor at one predetermined speed. The control system 46, 48a .... e may be generally similar to that described in co-pending Specification 1,215,203.
Patent GB-595455-A (GB)
Title: Improvements in or relating to stereoscopic viewing systems
IPC: G02B30/25
Filed: 1944-10-30
Abstract: 595,455. Teaching range-finding. KODAK, Ltd. Oct. 30, 1944, No. 21163. Convention date, Sept. 2, 1943. [Class 119] [Also in Group XX] A system for use particularly in instruments for testing stereo vision as described in Specification 595,454, comprises a bi-refringent system forming two separated images polarized at right angles, of a single scene, part of the system being movable to vary the separation of the images which are viewed stereoscopically through crossed polarizing filters. As shown in Fig. 1, an objective 13 forms an image of a transparency 12 in the plane 14 of a field lens 15, the image being divided into two images polarized at right angles by a fixed Woolaston or Rochon prism 25 and a similar prism 26 movable in guides 28. The prisms are arranged oppositely so that in one position the images coincide. A collimator 16, renders the beam parallel whereupon it is divided by prisms 17, 18 and the .resultant beams are observed by a binocular eye-piece 20. Crossed polarizing filters 35 ensure that each eye shall see one image only which images are fused stereoscopically and appear to be near the reticule placed in the image plane 14 or, when the two images coincide, in that plane. The observer corrects the movements caused by the prism 26 as described in Specification 595,454. A vectograph stereoscopic reticule, Fig. 13, may be used in the plane 14 or separate stereo reticules 43 in the eye-piece. A vecto dye filter may be placed at 14 to colour the images. To simulate the field of view of certain types of range-finders, a front surface mirror 40 may be swung into the dotted position shown so that the primary .images are formed partly. by light reflected from the mirror, thus giving two inverted images. A half-wave plate may be inserted to cover the field to give an ortho-stereoscopic effect in one half and a pseudo-effect in the other. In a modification, the prisms 25, 26 may be mounted between two equal positive lenses comprising the objective 13 and separated by a distance equal to twice their focal length, the whole system being movable to vary the separation of the images. Instead of two prisms a single crystal of quartz or calcite may be used.
Patent GB-582891-A (GB)
Title: Improved automatic steering mechanism for mobile craft
IPC: G05D1/02
Filed: 1943-12-17
Abstract: 582,891. Magnetic compasses. GENERAL MOTORS CORPORATION. Dec. 17, 1943, No. 21213. Convention date, Aug. 3, 1942. [Class 97 (ii)] [Also in Groups XXXV and XL] In an automatic steering system (see Group XXXV) for a mobile craft, a magnetic compass of the float type, Fig. 4, controls the position of a mirror 102 and, thereby, the amount of light reflected from a source 114, through lenses 120 on to a photo-electric cell 124.. The float 80 carrying, parallel magnets 82, 84 and auxiliary magnets 96, 98 is pivoted on a tapered rod. 72 for 30 degrees movement in any direction from vertical. Rod 72 is spring- mounted inside member 70 which contains the liquid. On the upper, surface of member 70 a small vertical rod 100 is mounted between pivots. The position of this rod which carries mirror 102 and slave magnets 128, 130 is controlled by the float magnets. To provide follow-up, member 70 is rotated by a flexible drive operating gear 62. Electrical connections to the light-control gear on member 70 are made through slip rings 56,and brushes 58.
Patent GB-324888-A (GB)
Title: Improved air pump
Filed: 1929-07-10
Abstract: 324,888. Herzmark, N. July 10, 1929. Lubricant conveyed by mechanical means. - The lower part of the casing of a compound air compressor forms an oil well in which the oil is distributed by an extension b<1> of a rod joining the low-pressure pistons and a lever g connecting this extension with a rod joining the high-pressure pistons.
Patent GB-354770-A (GB)
IPC: B29C33/40
Filed: 1930-03-06
Abstract: A metal mould has a portion of its contact surface carrying distinguishing marks moulded from a thermo-setting phenolic composition.  The thermo-setting composition may be inlaid into a section of the contact surface.  A suitable composition is stated to comprise about 40 per cent of a phenolic resinoid in a potentially reactive condition and from 5-60 per cent mica, the balance, if any, being any other filler such as wood flour, asbestos, aluminium or other metallic powders.  The mould may be used for tyres, rubber heels, &c.
Patent GB-1047633-A (GB)
Title: Improvements in or relating to pneumatic classifiers
Inventor: JOHNSON JOHN CUNNINGHAM
IPC: B07B7/04
Filed: 1963-05-28
Abstract: 1,047,633. Pneumatic separators. DAVIDSON & CO. Ltd. May 21, 1964 [May 28, 1963], No. 21265/63. Heading B2H. Fine particles are separated from an agglomerate of pulverized fuel, ground stone or clay, fullers earth, tea or sand by feeding the material through an inlet 12 on to a series of superimposed gratings 22 disposed in a horizontal air stream. The gratings may be formed of round or V-section bars and the air inlet 14 fitted with a gauze or perforated plate 21. The air stream is drawn through the chamber 11 by a suction fan and a further separator in the form of a cyclone or bag may be provided. The mouth of the inlet 12 may be adjustable and a feed valve provided. The air flow may also be regulated.
Patent GB-851450-A (GB)
Title: A new or improved gardening implement
Inventor: RALSTON GLADYS
IPC: A01G1/12
Filed: 1957-07-05
Abstract: 851,450. Hand planting-tools. RALSTON, V. H. June 26, 1958 [July 5, 1957], No. 21278/57. Class 6(2). [Also in Groups XXVIII and XXIX] A tapering rigid tube 1 is attached at one end to a watering hose by a flexible sleeve 2, and at the other end, adjacent a discharge orifice 5, has formed integrally therewith a hoe blade 6 or a fork head. The tube may contain a block of fertiliser substance which would be washed away by the flowing water; alternatively liquid fertiliser may be fed to the tube from an external chamber via a valve.
Patent GB-535811-A (GB)
Title: Improvements in or relating to dolls, animals and like figures and to the manufacture of the same
IPC: A63H3/46
Filed: 1939-07-22
Abstract: 535,811. Dolls. CASCELLOID, Ltd., and PALLETT, A. E. July 22, 1939, No. 21345. [Class 132 (iii)] In the manufacture of a doll, model animal &c. the body is made in at least two parts e.g. halves from a plastic material by an injection moulding process, the movable members being positioned between said parts and the latter subsequently joined together. The body head and limbs are each made in two parts by the injection moulding process in which suitable material such as celluloid initially in powdered, flaked or thermo-plastic form, is heated and forced under pressure into cold moulds or dies. The two parts are provided with means for locating the parts in correct relation when brought together for fixing by adhesive. The head A and limbs having been thus assembled carry flanged cylindrical extensions 15 which are laid in corresponding semi-circular recesses in the back part B<SP>2</SP> of the body, so that when the front part B<SP>1</SP> of the body is applied thereto, the head and limbs are rotatably secured to the body, the freedom of movement being restricted by a rubber ring 23 or a small compression spring and by the engagement of a radially projecting finger 33 on spaced stops 34. The extensions of the arms may be connected by a tension spring, while the extensions of the head and legs may be connected by tension springs to a peg attached to the back part B<SP>2</SP> of the body (Figs. 4, 5 not shown). Instead of the joints described, the body and associated movable members may be connected by ball and socket joints. The eyes 21 of the sleeping kind may be secured in half-ball sockets by a solid piece 22 of any suitable material formed with bearing portions.
Patent GB-1530497-A (GB)
Title: Process and apparatus for gapping slide fastener chains
IPC: A44B19/58
Filed: 1976-05-24
Abstract: 1530497 Sliding clasp fasteners TEXTRON INC 24 May 1976 [28 May 1975] 21403/76 Heading E2S In apparatus for removing a number of separate fastener elements 48, 50 from a continuous run of sliding clasp fastener stringers 44, 46, a relative pivotal motion is produced between the elements and their stringer tapes to successively pull off the elements to form a gap in the fastener. The interlocked elements 48, 50 are disengaged at a splitter post 28 and re-engaged by device 30 as the stringers are drawn through the apparatus by wheels 40, 42, the stringers being intermittently gripped by pneumatically operated clamps 24, 26 while the elements are removed at station 22 of the apparatus. Station 22 includes a pair of guide plates 120, 122 pivoted on a guide bar 118 with mating channels, such as 126, defining guide passages for the separated stringers. The bar 118 and plates 120, 122 have cut-outs 138, 140 to expose the elements to be removed. An anvil 186, Fig. 6, is movable on a pivoting support 150 to enter cut-outs 138, 140 thereupon combs 172, 174, also carried on plate 150, are advanced horizontally by pneumatic cylinders 152, 154 to engage behind the heads 52 of the elements and enter slots 190 in the anvil. Inner pull-down member 188 on anvil 186, and outer pull-down portions 176, 178 on piston rods 160, 162 engage the heel portions 55 of the elements. Support 150 is then pivoted at 144 by link 142 and pneumatic cylinder 148 to pull off the elements 48, 50 engaged by the combs. The gap so formed on the stringers is sensed by a detector 34 whose signal is used to initiate a further automatic gap-forming cycle of the apparatus. Blow lines 202, 204, 206 produce air jets to remove detached fastener elements. Passage of a fastener splice through the apparatus is prevented by a detector 32 which provides a signal disabling the drive to wheels 40, 42. Manual operation is possible if the wheel drive is disengaged, and the fastener chain is manually pulled through the apparatus, the pneumatic control valves being activated by a manually operated switch. A schematic diagram of the pneumatic control system is given in Fig. 10 (not shown).
Patent GB-681943-A (GB)
Title: Equipment for bending glass sheets
IPC: C03B23/027
Filed: 1950-08-30
Abstract: An alloy for making a mould for bending glass consists of approximately one-third to two-thirds nickel (or 34-68 per cent), 14-21 per cent chromium, less than 1 per cent each of manganese, silicon and nitrogen, not more than 0.5 per cent carbon and the balance iron.
Patent GB-290079-A (GB)
Title: Improvements in coin freed vending machines
IPC: G07F11/58
Filed: 1927-08-15
Abstract: 290,079. Morell, E. Aug. 15, 1927. Delivery of articles stored on endless bands.- In a coin-freed vending-machine of the type in which, an opening is made at the upper part of the machine casing from which the article purchased is removed, the articles are fed by a conveyer 18 comprising links 20 hinged together, each link including an outwardly projecting blade 21 which extends across the casing, the spacing of the blades being substantially equal to the width of the opening 22 in the casing. The conveyer in the form of an endless chain is moved by a spur wheel 19 geared to a pinion 24 provided with a handle 25 which can be turned when a coin is inserted through the slot 26; the other end of tho chain is guided by a pulley 16. Casings.-The casing is notched at 22, the blades 21 of the conveyer forming the side walls of the gap. The front of the machine may be provided with glass panels 14.
Patent GB-713547-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B61B10/02
Filed: 1951-09-12
Abstract: 713,547. Overhead conveyers. KING, D. M. Sept. 8, 1952 [Sept. 12, 1951; Sept. 12, 1951], Nos. 21470/51 and 21472/51. Class 104 (2) In a conveyer system in which load carrying trolleys are propelled along a track by pusher dogs carried by a chain running on a track disposed above the load carrying track each trolley has a movable element mounted thereon which in the normal position is in driving engagement with a pusher dog and means are provided at one or more selected points to move the element out of driving engagement with the pusher dog. A trolley 11 is propelled along a track 10 by a pusher dog 12 engaging an upwardly spring-biased T-shaped member 16, pivotally mounted on the trolley top. The member 16 is depressed out of driving engagement with the dog 12 by a plunger or plungers 18, 18<SP>1</SP> operated, on the closure of a switch 22 by a pin 23 on the trolley load carrying arm, by a solenoid disposed in a box 20. The trolley is held stationary by a recessed end of the plunger 18, Fig. 3 (not shown), engaging the T- shaped head of the member 16 or by a plunger 19, spring-biased to the inoperative position, projected into the path of the trolley by a linkage 25 and bell crank lever 26 operated from the plunger 18. The plungers 18, 19 may be retracted by another solenoid in the box 20 energized by a manually operated switch or automatically from some outside source as the result of closure of a switch by a trolley further along the conveyer path. The plunger 18 may be operated electricially, hydraulically or mechanically. In the arrangement shown in Fig. 5 a trolley depresses a counter-balanced ramp 46 thereby imparting a downward movement to a latch bar 38, through a toe-piece 45 pivotally mounted on the bar 38, so as to, pull, over a dead centre position, spring (43) loaded levers 34, 41 thus causing a release bar 39 to depress a member mounted on the trolley out of engagement with the pusher dog. Simultaneously with the operation of the dead centre mechanism a stop 49 is moved through a lever 50 into trolley blocking position. The trolley is released on operation of a solenoid 30 which raises the bar 39 whilst simultaneously moving the stop 49 upwards. The solenoid operation will also result in a roller 37 moving upwards over a cam surface on the bar 38 to rotate the bar 38 in a clockwise direction into a position in which the ramp 46 will, on being released by the trolley, engage the tce-piece 45. In a modification, Fig. 8 (not shown), the stop 49 is omitted, the trolley being stopped by a recessed member mounted on the underside of the bar 39 engaging the retractable member on the trolley. In a further modification, Figs. 9-11 (not shown), the solenoid 30 is replaced by a roller operated by one of the trolleys. A similar roller may also be mounted at the point of attachment 44 of the spring 43 to operate a release mechanism in a preceding station.
Patent GB-232851-A (GB)
Title: Improvement in drying plant
IPC: F26B15/00
Filed: 1924-09-11
Abstract: 232,851. Kiess, P. Sept. 11, 1924. No Patent granted (Sealing fee not paid). Wheeled trucks, moving; heating-fittings.- Plant for drying ceramic and chemical products &c. comprises a chamber A through which the products are conveyed upon trucks whilst subjected to the heat from a pipe g, which communicates with furnaces h, extends the whole length of the chamber, and is doubled back upon itself. The pipe connects with a junctionmember e which communicates through pipes f with the furnaces h and through pipes g with external furnaces. A draught is created in the pipe g by a shaft c which is surrounded by a tube d that serves as a fresh air inlet for the chamber. The air passes from the chamber by outlet shafts a, b. When the furnaces h are not in use, air may be admitted from them through openings # into the chamber.
Patent GB-405634-A (GB)
Title: Improvements in or relating to means for the propulsion of watercraft
IPC: B63H11/00
Filed: 1932-07-30
Abstract: 405,634. Jet propulsion for ships. CAMPINI, S., 3, Viale Corsica, Milan, Italy. July 30, 1932, No. 21581. [Class 114.] In jet propulsion plant for ships the inlet orifice is of narrow elongated form extending substantially along the girth of the under-water surface and opening forwardly to coincide with direction of flow of the layer of water adjacent the skin. The inlet conduit 3, Fig. 4, is directed at 1 parallel with the skin 15, but has a section 10 of the wall pivoted at 11 so that when starting the opening can be enlarged or when reversing the section may be moved up to close the opening. The inlet is protected by gratings 14, a number of which are provided to break the flow into parallel entries across the whole width of the inlet 3. When starting from rest, a supplementary inlet controlled by a flap 2<1> may be used. The flow passes through a divergent passage to a pump 4 and thence to delivery nozzles 6, Figs. 1, 2, these nozzles being provided with means for adjusting the size of the outlet. A rear power plant may be fitted comprising pumps 4a co-operating with a single outlet nozzle 7 which may be rotatable as shown in Fig. 13 by means of a quadrant fitted to a vertical spindle 53. A valve is fitted in the bottom wall of the outlet conduit and comprises deflecting surfaces 39. The valve may be moved downwardly by means of a piston 51 and rod 52 to the position 39<1>, the operating mechanism at the same time effecting the closure of nozzle 7 by means of a damper 41, thus reversing the outlet flow. The valve 7<1>, rod 52 and piston 51 are rotatable for steering, a quadrant on an upper extension of rod 52 meshing with that on spindle 53 for operation by a common hand lever 54. In a modification, two groups of pumps 4, 4a, Figs. 10, are provided, the inlets 1, 1a extending across the bottom and having parallel partitions. The units comprising pumps 4 have bifurcated outlet conduits 6 having nozzles 7, 71 for ahead and reverse drive respectively. The outlet flow is controlled by valves 37, Fig. 14, controlled by a manually actuated hydraulic piston 50. The rear pair of nozzles 7a are rotatably mounted upon conical seatings in their conduits and are rotatable for steering by pulleys 6<1>. Hydraulic control means comprises a piston carrying pulleys 9, 46. Movement of the piston causes opposite movements of the nozzles whilst rotation of pulley 46 causes similar movements.
Patent GB-830487-A (GB)
Title: Improvements in or relating to ported valve sleeves and to methods of making same
Inventor: ELMER ARTHUR ERNEST HENRY
IPC: F15B13/04
Filed: 1957-07-08
Abstract: 830,487. Making ported valve sleeves. ROTOL Ltd. July 22, 1958 [July 8, 1957], No. 21601/57. Class 83 (2). A ported valve sleeve is made by forming a radial groove in one end face of a tubular part which is then joined end-to-end with another tubular part, the radial groove in part defining a port in the sleeve. In a control valve the ported valve sleeve comprises inner and outer sleeves 25 and 11 housed in a cylinder chamber 12 in a casing 13. The inner sleeve comprises three abutting tubular parts 26, 27, 28. The abutting ends of the parts 26, 27 are ground to form grooves 35, 36 which together define an accurately-shaped port. Another port is similarly formed between the parts 27 and 28. The ports lead into annular chambers 33, 34. Before assembly the parts 26, 27 and 28 are copper-plated and then pressed with an interference fit into the outer sleeve 11 and brazed to it by induction heating. Alternatively the brazing step could be replaced by silver soldering.