baber/WOPTO huggingface dataset:
Patent GB-514537-A (GB)
Title: Improvements in apparatus for mixing one liquid with another in predetermined proportions
IPC: C02F1/68
Filed: 1938-05-09
Abstract: 514,537. Electric control systems. PERMUTIT CO., Ltd., MILTON, J. G., and STEVENS, H. D. W. May 9, 1938, No. 13820. [Class 40 (i)] In a system for controlling the addition of one liquid proportionately to another liquid, a pump 1 delivers through a pipe 19 a predetermined quantity of the first liquid whenever a predetermined quantity of the second liquid passes through a meter 13 in the pipe 20. Each predetermined quantity through the pipe 20 operates a change-over switch 9 which closes the circuit of a switch 8 for a pump motor 2 through one or other of the switches 10, 11. The switches 10, 11 are operated by cams 16, 17 driven by the pump motor, the arrangement being such that the pump is driven until one of the switches is opened to stop the' motor and the other switch is closed to prepare the motor circuit for the next operation of the switch 9. The stroke of the pump may be varied by adjustment of the crank pin 5 in slides 6. A magnetic brake is provided for effecting instantaneous stopping of the motor. The pump motor may drive an agitator in the mixing tank, in which case the motor may drive the agitator continuously and the pump may be driven by the motor through a clutch which is controlled .by the switches 9, 10, 11.
Patent GB-495777-A (GB)
Title: Improvements in apparatus for determining impulse frequencies and/or impulse ratios of contact mechanisms
IPC: H04M1/24
Filed: 1937-05-18
Abstract: 495,777. Frequency measurements ; automatic exchange equipment. BONWITT, W., KUHNEL, R., SCHALKHAMMER, J., and HOLITSCHER, P., (trading as NORMA INSTRUMENTEN - FABRIK BONWITT & CO.). May 18, 1937, No. 13860. Convention date, May 15, 1936. [Class 37] [Also in Group XXXIX] Apparatus for determining the impulse frequency of an impulsing contact mechanism, such as that used for automatic telephone dialling, comprises an ammeter in the secondary circuit of a transformer, the primary circuit of which is supplied from a source of constant D.C. voltage in series with the impulsing contact mechanism to be tested. In addition the impulse ratio, i.e. the percentage of the total time during which contact is made, may be indicated. In the apparatus shown, for indicating both impulse frequency and impulse ratio, a battery B is connected in the primary circuit of a transformer T through a change-over switch S and regulating resistance W. The contact mechanism to be tested is connected to terminals K. A welldamped moving-coil instrument M with rectifier H is connected in the secondary circuit of the transformer T and indicates the mean value of the secondary current, which is proportional to the impulse frequency, since the primary current is supplied from a source of constant voltage. On changing the switch S from the contacts F1, F2, to the contacts R1, R2, the transformer T and rectifier H are cut out and a resistance 1 is placed in series with the ammeter M in shunt with a resistance 2. The mean current is' indicated by the ammeter M, and is proportional to the impulse ratio. In order to eliminate errors due to the contacts of the impulsing mechanism, a relay may be connected across the contacts K and operated by the impulsing mechanism. A filter coupling and a quench circuit may be provided to render the deflection independent of higher harmonics in the event of surges occurring in the primary circuit due to sparking at the contacts. The instrument M may be biassed so that the scale has a suppressed zero. A cross-coil instrument may be used to prevent errors due to voltage fluctuations.
Patent GB-788010-A (GB)
Title: Improvements in or relating to boring, drilling and screw cutting machines, particularly a boring, drilling, or screw cutting unit
IPC: B23Q5/32
Filed: 1955-05-13
Abstract: 788,010. Drilling- and screwing-machines. HONSBERG, A., [trading as HONSBERG, GEB.]. May 13, 1955 [June 21, 1954], No. 13914/55. Class 83 (3). [Also in Group XXXIV] In a drilling-, boring- and screwing-machine wherein the main spindle 5, in a sleeve 6 or carriage, is fed by a pinion 20 engaging a rack 8 on the sleeve or carriage, the pinion is driven through an epicyclic gear 15 at a speed which depends on the rotational speed of the spindle. The epicyclic gear may also be driven independently of the spindle through a rapid-traverse motor 10 and the epicyclic gear is constituted by spur wheels of which a pair of planet wheels 17, 18 are integral with each other and mounted in a carrier 14 driven through change-gears 13 from the main spindle, the wheels 17, 18 having slightly different numbers of teeth and meshing with sun-wheels 19, 21, of which 19 rotates feed pinion 20, and 21 may be driven by motor 10. The hub of the sun-gear 19 constitutes feed pinion 20 and is rotated about the shaft 22 of the sun-gear 21, which is held stationary during the feed stroke by an irreversible worm gear 23 in the drive from the rapid-traverse motor 10 and a brake 26 on the motor shaft 25. Alternatively, if the rapid-traverse drive is omitted, shaft 22 is held stationary by a plate 50, Fig. 5 (not shown), in place of the worm-gear 23. The feed drive for the planet carrier 14 is from a belt pulley 3, on the spindle 5, which is driven by the sliding armature spindle motor 1, the drive including an irreversible worm-gear 12 between a gear 11 engaging the pulley 3 and the change gears 13. The brake 26 comprises pivoted shoes 28, 29, Fig. 4, operated by a lever 35 controlled by an electromagnet 37 in series with motor 10. Energization of the electromagnet causes the ball end 34 of lever 35 to release the brake against the influence of springs 27, 38. The spindle may be traversed rapidly by running the motors 1, 10 simultaneously. A plate 9, carried by the sleeve 6 and which may support a number of tool spindles driven by the spindle 5, has one or a pair of guide rods 39 engaging the machine casing 7, rod 39 also being screw-threaded to engage a cam 40 operating switches 42-44, the position, or the actuating elements of which, may be adjustable. Switch 42 stops the machine when the spindle has been retracted; switch 43, which is operated through a pair of levers 45, 48 on a shaft 46, changes the spindle-traverse from rapid traverse to feed; switch 44 disconnects the drive or reverses the direction of traverse. The maximum depth-of-feed is equal to the sum of the width of switch-operating lever 45 and the length of the cam 40, so that lever 45 is not released by the cam during a feedstroke.
Patent GB-169211-A (GB)
Title: Improvements in and relating to bulkheads and the like
IPC: B63B3/56
Filed: 1920-05-20
Abstract: 169,211. Childs, J., and Evans, W. May 20, 1920. Bulkheads; tanks; liquid-carrying vessels.- Partitions or bulkheads for liquid-storing tanks and liquid-carrying steamers are built up with vertical pillars of cruciform cross-section and with plating. A pillar made up of a plate 3 and two T-plates 6, 7 has riveted or welded thereto plating 1, 2; 10, 12. In modifications, anglepieces may replace the T-pieces, the pillar is a one piece construction, or a straight-through bulkhead piece replaces the base member 3. In these constructions, the strength in shear is made equal to that in the remaining portion of the structure.
Patent GB-890358-A (GB)
Title: Improvements in or relating to sashless sliding window latches
IPC: E05B65/08
Filed: 1960-04-21
Abstract: 890,358. Window latches. CELWOOD INDUSTRIES Ltd. April 21, 1960 [July 6, 1959], No. 13966/60. Class 44. The sliding pane 12, Figs. 1, 2, 4 of a sliding window arrangement is latched in closed position by the interengagement of a latch 62 resiliently mounted on the pane and a shaped plate 32 screwed to the window sill 14 such that it overlaps the slideway 28 in which the pane is moved. The plate has recesses 38 and 40 for accommodating an extension 72 depending from the latch the recess 38 allowing the pane limited sliding movement whilst otherwise latched. The appropriate recess 40-in the present case, the recess to the left of Fig. 4- into which the extension 72 is moved by laterally and longitudinally moving the pane 12 firmly secures the latch in the latched position of the pane. The latch 62 is secured to the pane 12 through the intermediary of resilient washers 54, 58, Fig. 5, screw members 50, 68 and a locking nut 56.
Patent GB-1183752-A (GB)
Title: Improvements in or relating to Pallet Transfer Devices.
Inventor: HALDIMANN HANS-RUDOLF
IPC: B66F9/14
Filed: 1967-03-28
Abstract: 1,183,752. Masted lift trucks. H.R. HALDIMANN. 28 March, 1967 [29 March, 1966], No. 13981/67. Heading B8H. A pallet transfer attachment for a lift truck comprises a platform 10 mounted on the lifting fork 8 and supporting a support 9 for movement towards either side of the truck, the support being provided with a pair of driven endless belts 11 for engagement with a pallet in a storage rack. In operation, the lifting carriage is positioned adjacent a selected storage rack, the support 9 is moved laterally to insert ramp-like end portions of the support below the load-supporting surface of the pallet 3. The fork is then raised slightly to bring the belts 11 into engagement with the underside of the load-supporting surface of the pallet. The belt drive is then actuated to draw the pallet on to the platform 10, wheels 4 of the pallet running on tracks 2 in the storage rack and on guides 12 on the platform 10. The belts may be replaced by rollers.
Patent GB-538749-A (GB)
Title: Improvements in and relating to a method of insulating and covering electrical conductors
IPC: H01B13/26
Filed: 1940-09-09
Abstract: 538,749. Cables &c. OKONITE CO. Sept. 9, 1940, No. 14017. Convention date, Sept. 13, 1939. [Class 36] A thin protecting layer of chloro-2-butadiene- 1, 3 polymer or other plastic material is attached to a metal backing and applied to an insulated conductor, with the plastic layer on the inside, by bending it and the backing member transversely of their length around the conductor and stripping off the metal backing after vulcanization. The backing may be of tin and it may be first coated with shellac or other mould solution. A suitable plastic composition consists of the polymer, magnesium oxide, factice, rosin and other ingredients.
Patent GB-560611-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/02
Filed: 1942-10-06
Abstract: 560,611. Optical objectives. TAYLOR, TAYLOR, & HOBSON, Ltd., and HOPKINS, H. H. Oct. 6, 1942, No. 14037. Drawings to Specification. [Class 97 (i)] An objective for profile projection comprises a divergent member spaced in front of two air-spaced convergent members, in conjunction with a small stop, or the equivalent, located substantially in a position at which rays parallel to the axis, entrant from the rear, come to a focus on the axis, the objective being corrected for chromatic aberration, astigmatism, and distortion with respect to the stop position, and having a substantially flat image field. Both the front two members may have concave front surfaces, the rear surface of the divergent member may be approximately plane, the rear surfaces of the two convergent members may be convex, and the front surface of the rear member may also be convex. Numerical conditions for radii of surfaces, overall length, diameter of stop, and materials, and also complete data for four examples are set out. Magnesium oxide crystal may be used for the two convergent members ; any of the members may be compound. Specifications 444,350 and 560,541 are referred to.
Patent GB-1103563-A (GB)
Title: Improvements relating to analysis cell window assemblies
Inventor: STARNES PETER EDWARD
IPC: H01J5/18
Filed: 1965-04-02
Abstract: 1,103,563. Sheet forming. HILGER & WATTS Ltd. 1 April, 1966 [2 April, 1965], No. 14084/65. Heading B5A. An analysis cell window is made by forming a circular blank of bi-axially oriented and heat set polyethylene terephthalate film between matching male and female dies at a temperature between 150‹ and 200‹ C. and a pressure of about 5000 p.s.i. The dies are designed so that they contact only the peripheral parts of the blank, the central part thereof not being reduced in thickness during the forming. The window thus formed is then subjected to an hydraulic stretching operation at a pressure of 3-5 times the design operating pressure to prevent creep during its use.
Patent GB-923795-A (GB)
Title: Fluid control valves
Inventor: CHAMPION CUTHBERT LLEWELLYN
IPC: F16K11/20
Filed: 1960-04-21
Abstract: 923,795. Valves. PICKFORD EXPERIMENTAL CO. Ltd. April 17, 1961 [April 21, 1960], No. 14101/60. Class 135. A valve for dividing a single flow into two separate flows or uniting the separate flows in variable proportions, comprises a rotatable valve member 11 having a helical controlling edge 14 which co-operates with a common port 7 in the wall of a valve chamber, opposite ends of the helical edge being connected by a barrier edge 15 so that the flow is variably divided between the two outlets or inlets 5, 6 which communicate with opposite ends of the valve chamber. This chamber is formed in a member 3 rotatable in a body 1 having a port cooperating with the port 7 so that the total effective area of this port may be varied; in this case the areas of the ports 5, 6 are arranged not to vary or to vary by equal amounts. Separate hand wheels 18, 19 are provided for operating the two movable members. The control edge 14 may be of rubber or other resilient material.
Patent GB-1033805-A (GB)
Title: Improvements in or relating to rivets and method of riveting
Inventor: GAPP ROLAND HOWARD
IPC: B21J15/06
Filed: 1963-04-09
Abstract: 1,033,805. Blind riveting. TEXTRON INDUSTRIES Inc. April 9, 1963, No. 14184/63. Heading B3U. [Also in Division F2] A mandrel (see Division F2) is drawn into a rivet 21 by a tool with a head 23 containing both an anvil 22 which holds in place a locking ring 26 of the rivet and a nose 24 which holds the rivet head down until when the pulling is complete the ring 26 is forced down into the hole in the rivet head and the mandrel is broken at a groove near the head. The mandrel has a conical head tapering towards the shank and bears, adjacent the narrow end of the head, a collar which rests against the end of the rivet shank until the mandrel is pulled. The collar then cuts with its sharp upper edge, a ring from the rivet end and bears this up into the rivet shank as the shank is bulged for riveting. The collar may then break off and allow the conical head to slide up inside it until the ring 26 is set and the mandrel broken.
Patent GB-1018461-A (GB)
Title: Improvements in and relating to coke oven ascension pipes
Inventor: ALDERMAN LEWIS
IPC: C10B27/06
Filed: 1962-04-13
Abstract: An ascension pipe 12 from a coke oven has a refractory lining 13 and is secured (through a lined T-piece 14) with a gas conduit 121 which has a nozzle or nozzles 128, 129 located in a recess 127, closely adjacent the junction of the conduit 121 and the pipe 12, the nozzles producing a spray of liquor which wets all the interior of the conduit 121.  The sprays are fan-shaped in this embodiment, Fig. 5 (not shown) but the conduit 121 may be provided with a single nozzle which produces a cone-shaped spray (see Figs. 1 to 4, not shown). In all the embodiments, no spray contacts the refractory lining 18 of the T-piece 14.
Patent GB-119529-A (GB)
Title: Improvements in Ships' Boats and like Disengaging Hooks or Mechanism.
Inventor: ADAIR JOSEPH THOMAS WILLIAM LO
IPC: B63B23/58
Filed: 1917-10-03
Abstract: 119,529. Adair, J. T. W. L., and Francis, J. D. Oct. 3, 1917. Hooks, automatic-release for boat-lowering apparatus of the type comprising a frame or carrier 1 attached to the boat, a supporting arm or hook 2 for the ship's tackle hinged to the frame, and a hinged link 7 for engaging the free end of the hook arm 2. The hinge-pin 5 of the arm 2 is movable in a slot 6 in an extension 4 of the frame 1, and the hook arm is formed with a projection 12 adapted to engage or to be disengaged from a spring pawl 13 carried on the frame 1. In the out-of-use position the pawl 13 engages the projection 12, as indicated in dotted lines in Fig. 1, and holds the hook arm 2 substantially horizontal. When a boat is to be lowered the ring of the tackle is engaged with the arm 2, and the holding device 7 in the form of a bell-crank link is passed over the hook arm, which is furnished with a retaining catch at its free end. As soon as pressure comes upon the hook arm the projection 12 slips past the pawl 13, and the hinge-pin 5 moves to the upper end of the slot 6, thus allowing the hook arm and the link 7 to fall about their pivots and release the tackle when the boat is water-borne. The horizontal portion of the bellcrank link 7 engages the under surface of a projection 9 on the frame 1 so that the weight of the boat is supported by the frame instead of by the hinge-pin 8. The hook arm 2 may be held in an horizontal position when the projection 12 is free from the pawl 12 by means of a pin 14 inserted through holes 14<1> in each side member of the link 7 under the hook arm 2; or a spring catch may replace the pin 14. According to a modification, instead of the hinge of the hook arm 2 being movable, the hinge-pin 8 of the link may move in slots in the frame 1 and co-operate with a spring pawl.
Patent GB-561539-A (GB)
Title: Improvements in or relating to honing methods and devices
IPC: B24B33/02
Filed: 1941-11-07
Abstract: 561,539. Honing-machines. MICROMATIC HONE CORPORATION. Nov. 7, 1941, No. 14371. Convention date, Nov. 13, 1940. [Class 60] In a honing operation in which the stones are expanded to the operative position, in which position they are given a combined rotary and reciprocating motion, compensation for wear is effected on retracting the stones preparatory to a further similar operation. The tool is operated by means including a sleeve 15, Fig. 1, fitted with a nose 16 in which is mounted a sleeve secured to a shaft 26 and forming a cylinder in which is a piston 31 from which extends a hollow shaft 34. The rotary and reciprocating motion of the hone is effected from two pulleys 40, 42 and the forward and retractive movements are effected pneumatically, as in Specification 536,683. To effect the adjustment for wear, the nose 16 is provided with a sleeve 76 secured thereto and carrying a rotatable adjusting sleeve 78. An internally threaded sleeve 81 is formed at its inner end as the outer race of a bearing, the inner race of which is connected by a cross pin 87 to the shaft 34. As shown in Fig. 3, the sleeve 78 is furnished with a ring gear 88 with which engage a pair of gears 89 carried by the sleeve 81 and engaging teeth on a member 92 threaded in the sleeve 81 and forming a bearing with a member 93 connected by a pin 98 to a tool adjusting head 96 which is thus adjusted by the rotation of the sleeve 78. The tool is rotated and reciprocated from the member 101 and the stones expanded and retracted by a shaft 113. The adjustment may be effected automatically as shown in Figs. 8 and 10 in which the sleeve 78 is periodically rotated forwards or backwards by oppositely disposed ratchets 133, 134, engaged by pawls 157, 161 carried by a ring gear 154 operated by a pinion 153 operated in turn by a rack 149 on a cylinder 136. The cylinder is reciprocated by fluid pressure, the fluid in the operative stroke passing an adjustable restriction 187 which is by-passed through the passage 147 on the return stroke. The pawls are controlled by variable abutments, the setting of which determines the length of the operative stroke.
Patent GB-338144-A (GB)
Title: A method of and apparatus for reducing the cross-sectional area of bars
IPC: B21J7/18
Filed: 1929-05-08
Abstract: 338,144. Pipe & Tube Bending Corporation of America, (Assignees of Neuberth, G. E.). Nov. 19, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Rolling tubes.-Tubes and bars are rolled in a tandem train of segmental oscillating rolls having housings, driving gear, roll adjustments, and mandrel and like supports and feeds as described in Specification 312,352. The roll pass is however constructed so that the several pairs of rolls act in succession at each stroke. The work is fed forward a step while the rolls are in the position shown in the Figure, the pass at a and d affording clearance. The portion ab reduces the work, the portion de permitting the axial movement due to the increase in length. A reducing portion ef comes into operation shortly before the point b is reached, and during this stage the portion be exerts a smoothing action only on the work which continues during further smoothing by the portion fg. Beyond the points c and g clearance exists. In the case of tubes the mandrel may be slightly tapered at the part lying between the roll pairs.
Patent GB-814244-A (GB)
Title: Improvements in or relating to thermostatically controlled electrical heating units for heating and boiling liquids
Inventor: JACKSON BERNARD RICHARD
IPC: H05B1/02
Filed: 1955-05-18
Abstract: 814,244. Heating liquids electrically. MERLIN MOULDINGS Ltd. June 21, 1956 [May 18, 1955], No. 14396/55. Class 39(3) [Also in Group XXXVII] In Fig. 1, an electric heating unit for a kettle comprises a heating element (not shown) wound around, or carried along the length of, a metal container 2 for a thermostat of which a bimetallic strip 14 is mounted on the container and acts on contacts 11, 12 via a bead 13; a bracket 7 supporting the contact assembly is adjustable by a screw 17. An over-riding control member causes contacts 11, 12 to remain closed despite the action of the bimetallic strip 14 and consists of a bar 18 bent to co-operate with a ridge 19 formed on the spring 9 carrying the contact 12. The bar is mounted on a cap 3 slidable in a gland 1 and normally urged outwardly against the heads of screws 4 by springs 6. In using the unit the thermostat is set to open at 98‹C. and the kettle connector inserted into the socket on the kettle. The cap 3 and bar 18 are thus pressed inwards and the thermostat is able to operate. The thermal delay resulting from the mass of metal of the container 2 and the air column within the container ensures that the contacts 11, 12 are not opened until the water has reached boiling point and has continued to boil for about 30 seconds after which the thermostat becomes operative and the water thereafter maintained at approximately 96‹C. If it is required to reboil the water the kettle connector is withdrawn slightly carrying with it the slidable cap 3 and bar 18 which engages the ridge 19 causing the contacts 11, 12 to close or to be maintained closed. In the event of the kettle boiling dry or being switched on without water being present the direct transfer of heat from the heating element to the container 2 causes the thermostat to operate. In a modification, Fig. 2, the over-riding control consists of a resilient strip 118 of which the free end is engageable with a cam face 119 of the slidable cap 3. With the cap in its outward position, the strip 118 is allowed to bear against the bimetallic strip 14 which is thus prevented from opening the contacts 11, 12. When the cap 3 is pushed inwardly the strip 118 is deflected below the bead 13 which may thus be depressed by the bimetallic strip to open the contacts. An arc-suppressing condenser 30 is provided. The contacts of the thermostat; may be closed by movement of the contact pins with the cap or by means of levers, rockers, springs or a spring-loaded plunger. The thermostatic switch may be of the snap-action type. According to the Provisional Specification a switch in parallel with the thermostatic switch may be operated by the sliding cap or by the kettle connector or may be separately operated and may comprise a moving weight or mercury switch, the latter being closed by tilting the kettle.