baber/WOPTO huggingface dataset:
Patent GB-564562-A (GB)
Title: Improvements in or relating to means for controlling liquid pumps
IPC: F04D15/00
Filed: 1943-07-27
Abstract: 564,562. Regulating pumps. WEIR, Ltd., G. & J., and McALPINE, T. July 27, 1943, No. 12196. [Class 102 (i)] [Also in Group XXVI] The supply valve 16 of a motor driving a pump 1 is controlled by a differential piston 8 exposed at one end to the pressure of the atmosphere and a spring 15 and at the other end to the fluid pressure in the throat of a -, venturi passage 3 in the pump discharge through a pipe 5. The differential annulus between the two parts of the piston is exposed to the discharge pressure through a connection 10, and the cross-section of the throat is controlled by an adjustable valve 4. The valve may be shaped so as to form a venturi passage in a parallel-sided tube. Specification 466,613, [Group XXVI], is referred to.
Patent GB-252699-A (GB)
Title: Improvements in or relating to regenerative systems of electric traction
IPC: B60L7/12
Filed: 1926-05-12
Abstract: 252,699. International General Electric Co., Inc., (Assignees of .4!!<<y>eme!me Elektricitõts Ges.). May 28, 1925, [Convention date]. Regenerative systems for electric traction. When the' controller is set for regenerative braking a polarized relay 4 having its coil connected between the motor 8 and the supply point 1 determines the closure of a main circuit switch 2 if the direction and magnitude of the regenerated voltage are correct, and a maintainin<g> circuit is made through an auxiliary contact 16. An additional main-current relay or an additional winding on the relay 4 may automatically open the main switch if the regenerated current falls to a limiting strength. As a further precaution a second but quicker acting polarized voltage relay may initially prevent the action of the relay 4 if the regenerated voltage is above a certain limit. Diagrams of all the modifications are given.
Patent GB-1291403-A (GB)
Title: Improvements relating to carpet and floor cleaning appliances
Inventor: WESSEL HANS
IPC: A47L11/20
Filed: 1971-04-29
Abstract: 1291403 Suction cleaners H WESSEL 29 April 1971 [30 Oct 1970j 12290/71 Heading A4F A suction nozzle has a pivotable connector 10 for connecting it to a suction cleaner, a positively driven roller brush 3, and a plurality of interconnected grooves or channels 15, 16 in its bottom plate 6 providing suction inlets to the nozzle and located parallel with the brush 3. Different combinations of suction grooves or channels are illustrated in Figs. 3 to 5 (not shown).
Patent GB-266945-A (GB)
Title: Improvements relating to reverse-stops or catches for the gear levers of motor vehicles
IPC: F16H59/04
Filed: 1926-05-13
Abstract: 266,945. Harris & Sheldon, Ltd., and Nelson, A. D. May 13, 1926. Controlling variable-speed gearing for motor vehicles. A reverse stop R closing the reverse slot N in a gate G is moved out of the way of the gear lever 5 by a hand lever (not shown), or by pressing the foot sideways upon a plate 10. As the stop R slides under the gate a lever 11 pivoted upon the gate is advanced over the slot M of the first forward speed at the other end of the gate, as shown in Fig. 1. On the control lever being moved into the slot M, the lever 11 is struck and returns the stop R automatically to its obstructive position. A modification is described in which the lever 11 is advanced over a speed slot at the same end of the gate as the reverse slot. In a further modification, the lever 11 carries a spring dog adapted to extend into the centre of the gate, which is operatively struck when the control lever is moved into neutral. Modifications are described in which the reverse stop R pivots laterally into and out of obstructive position. In an arrangement shown in Fig. 12. the reverse stop R pivots upwards from the gate G when raised by a hand-lever 33. The stop is folded down to operative position when a lever 37 at the other end of the gate is struck by the control lever (not shown).
Patent GB-1352513-A (GB)
Title: Operation and control of machines for carrying out cutting oper ations on workpieces
IPC: B23Q7/04
Filed: 1970-03-14
Abstract: 1352513 Screw threading machines; transfer means ARTHUR EDGE & CO Ltd and W F MARSHALL 19 April 1971 [14 March 1970 13 Aug 1970] 12365/70 and 39006/70 Headings B3N and B3B A transfer unit on a screw threading machine operates as follows: starting from the position shown in Fig. 1, slide 11 carrying a workpiece holder 12 with a workpiece therein, e.g. a bolt blank, is fed towards a rotary cutting head 13, transfer jaws 17 mounted on a swinging arm 16 are moved from the intermediate station 21 to station 22 and thence by operation of piston and cylinder unit 1 to a receiving station 23; a shoot 14 has piston and cylinder units 6, 7 which operate as a gate to admit blanks singly to the transfer jaws; the jaws are then moved back to the intermediate station 21; when workpiece holder 12 reaches a returned position as shown it is opened to release the finished bolt whereupon transfer jaws are fed to delivery station 20 and the blank is transferred to the workpiece holder; the transfer jaws return to the intermediate position and a new cycle commences. Instead of a swinging arm 16 the transfer jaws could be mounted on a carriage which is movable along a horizontal rail. Further, instead of dropping a finished bolt from the workpiece holder 12 a removal arm may be supplied. A plate having a hole may be mounted in front of head 13 so that a misaligned bolt will cause the plate to operate a release valve which retracts the saddle. A deflector plate may also be operated so that the ejected bolt does not fall into the finished bolts. Automatic control is pneumatic pilot valves and suitably placed actuators. Alternatively the machine could be hydraulically or electrically controlled. Saddle 11 has a fast feed of approach toward head 13 and the feed into the cutter head is controlled by an hydraulic rate control device 113.
Patent GB-472809-A (GB)
Title: Improvements relating to apparatus for trueing stacks of sheets of paper
IPC: B65H31/40
Filed: 1937-05-01
Abstract: 472,809. Stacking paper sheets. HALLEY & SONS, Ltd., J., and HALLEY, J. M. May 1. 1937, No. 12466. Addition to 464,629. [Class 100 (i)] In apparatus for trueing stacks of paper sheets as described in the parent Specification, a bell-crank lever 5, 7 or an equivalent combination of levers is interposed between the toggle-operated member 3 and the tray 12 and gives a compound motion to the tray to ensure accurate trueing of the stack of paper sheets placed on the tray. The lever arm 7 carrying the tray 12 is fixed to a shaft 6 rotatable in brackets 8, and the other arm 5 is adjustably attached to the shaft by a threaded pin 11. A stud 10 on the arm 7 engages a slot 5a in the arm 5 to act as guiding means during relative adjustment of the arms. Links 4 connect the arm 5 to the member 3.
Patent GB-450032-A (GB)
Title: Improvements in or relating to the separation from liquids of the particles dispersed or suspended therein
IPC: C02F1/52
Filed: 1935-04-25
Abstract: 450,032. Washing granular materials. SAMUEL, J. O., Crud-yr-Awel, Pontlliw, and UNIFLOC REAGENTS, Ltd., 10, Adelaide Street, both in Swansea. April 25, 1935, No. 12485. [Class 82 (ii)] [See also Group I] In a process, comprising use of a flocculating agent, for separating particles dispersed or suspended therein from liquids, such as the effluent from coalwashing plant, the concentration of the dispersed material is adjusted to between À3 of a pound and one pound per gallon before the addition of the flocculating agent. The process is stated to be particularly applicable when the special flocculating agent described in Specification 435,126, [Group I], is used. The action of the flocculating agent is assisted if the dispersion is alkaline and for this reason lime may be supplied to the water in the washer. With the apparatus shown diagrammatically on the drawing, the effluent from the washing plant, which comprises perforated shoots, preferably oscillated, along which the coal passes, the graded coal, prior to its delivery from the shoots, being washed by clean water sprays, is pumped to a water tower in which the heavier impurities settle and from which water is returned to the washer. A portion of the water containing lighter impurities is pumped from the tower to a thickener, a flocculating agent being added in controlled quantity as the water passes from the pump to the thickener. Clear water passes from the thickener through a box, containing a float which controls the valve through which the flocculating agent is supplied, to a reservoir supplying the water sprays of the washing apparatus. The sludge from the thickener is delivered to a rotary suction filter. Both the water tower and the thickener are fitted with cylindrical curtains and the liquid supply is in each case delivered within the curtain. The pump draws from the water tower through a bell-mouthed pipe opening within the curtain and the suction is controlled so that the velocity at the mouth of the bell is equal to the falling velocity of the maximum sized particles which it is desired to pass to the thickener. The suction side of the pump has valved connections to the space outside the curtain in both the water tower and the thickener and the concentration in the water to which the flocculating agent is added is reduced as desired by adjusting these valves to regulate the amount of comparatively clean water passing therethrough. It is stated that when the matter in a dispersion under treatment is of comparatively low specific gravity a vacuum may be applied after the flocculating agent has been added to cause the floes of light weight to rise to the surface.
Patent GB-218434-A (GB)
Title: Improvements in prepayment mechanisms for meters
IPC: G07F15/02
Filed: 1923-05-10
Abstract: 218,434. Fox, T., and Robinson, S. May 10, 1923. Coin action, mechanical-connection and multiple - - coin; price-changing mechanism.-In prepayment mechanism for meters adjustable for use with one or other of two coins of different values, the coin engaging directly with the teeth of the quantity wheel, the price-changing disc is displaceable axially into one or other of two positions according to the coin to be used. The distance between the price-changing disc 9 and the quantity wheel 12 is adjusted by a ring or sleeve 16 which is placed on one side or other of the price-changing disc. The length of the sleeve is equal to the difference in the diameters of the coins. The sleeve 16 and disc 9 are held in position between a flange 18 in a cup casing containing the coin-mechanism and an annular flange 20 on a hinged cover 19. The cover is secured by a slotted lug 30 embracing a stud 31 on the bottom of the cup casing, a spring button 32 engaging an enlarged portion of the slot in the lug to lock it. The sleeve 16 has a projection engaging a recess in the casing to retain it in position and it is provided with an indicating mark by which the price-changer is set.
Patent GB-543067-A (GB)
Title: Improvements in or relating to electric signal transmission systems
IPC: H03H7/01
Filed: 1940-08-06
Abstract: 543,067. Impedance networks. STANDARD TELEPHONES & CABLES, Ltd., and KRAM, W. Aug. 6, 1940. No. 12642. [Class 40 (iii)] [Also in Group XXXVI] ] In short-wave variable attenuators such as those described in Specification 520,289 or like apparatus having one side such as A, B, C, D of its transmission circuit earthed, the input connection is provided by a transformer T with a primary terminal H connected to a mounting rack AR at earth potential in order to discourage the circulation of undesired currents due to the presence of adventitious impedance B, C in the earthed side of the circuit. In a system for ascertaining the characteristic relating gain to frequency in an amplifier, an oscillator OSC is connected to an amplifier AMP through an attenuator ATT, and these components are screened and earthed to the metal rack AR. If a direct connection were substituted for the transformer T as in Fig. 1 (not shown), the potential difference across the stray impedance B, due to current circulating in the left-hand mesh of the attenuator, would set up a current round the circuit A, B, C, D, E, G, H, A, and the consequent p.d. across the stray impedance C (or across another impedance in the amplifier, Fig. 2, not shown) would produce errors in the magnitude of the output. This circuit is accordingly interrupted by the transformer T which is enclosed in a screen TS while the capacity between its windings may be neutralized by a screen IS and its terminal H is earthed at G. At the same time the capacity C2 to earth of the lead B is reduced by shortening the lead. A high-frequency filter may be similarly designed.
Patent GB-1507656-A (GB)
Title: Process
IPC: C08G69/28
Filed: 1977-03-25
Abstract: 1507656 Polymerizing nylon salts E I DU PONT DE NEMOURS & CO 25 March 1977 [26 March 1976] 12700/77 Heading C3R In the polymerization of aqueous nylon salt solution clogging of the vent pipe by deposition of polymer entrained in the vented steam is prevented or reduced by injecting sufficient water in or near the vent side of the pressure control valve to saturate the vented steam and wet the vent pipe walls.
Patent GB-782627-A (GB)
Title: Dispensing apparatus including a reciprocating diaphragm pump
IPC: F04B53/00
Filed: 1956-04-25
Abstract: 782,627. Diaphragm pumps. GENERAL ANILINE & FILM CORPORATION. April 25, 1956, [May 13, 1955], No. 12712/56. Class 102(1). In a pumping apparatus for feeding discrete quantities of liquid such as aqua ammonia, the casing 10 forms a wall of the storage tank, and the passage 12 from the bottom of the tank communicates with a vertical inlet passage, having a non-return valve 14, to the pumping chamber 15. The outlet passage 18, having non-return valve 20, is vertically opposite the inlet passage. The diaphragm 23 is actuated on the pressure stroke by a lever 30, working through a shaft 31 having radial arms, one of which engages a cam, and on the suction stroke by a spring 26. The stroke of the lever 30 may be adjusted to vary the stroke of the pump.
Patent GB-1089712-A (GB)
Title: Improvements in or relating to bottom edge sealing devices for doors and the like
IPC: E06B7/20
Filed: 1965-03-25
Abstract: 1,089,712. Draught excluders. A. M. DE JONG A.B. March 25, 1965 [April 8, 1964], No. 12719/65. Heading E1J. In a bottom edge seal or draught and weather excluder for doors &c. jamb-operated by a push-rod 7 in the closed position of the door the sealing strip 6 of resilient tubular rubber is slidably contoured in an inverted U-section mounting bar 1 to which it is pivotally connected by a central obliquely arranged link 11 pivoted by simple pivot pins 3, 13, to the bar 1 and sealing holder bar 5 of U-section to which the strip 6 is glued &c, and by outer parallel links 12 connected to the bar 1 by slot and pin connections 3, 12" and to the seal strip holder bar 5 by slot and pin connections 13, 12', and biased against the pins 3, 13 by tension springs 14 connected between the link 12 and the holder bar 5, so that the sealing strip as a whole can adjust itself to the unevenness of the floor &c. and the tubular sealing strip can accommodate local recesses in the floor. Additional links such as 10 and 12 may be provided on either side of the link 11.
Patent GB-531467-A (GB)
Title: Improvements in or relating to vision apparatus
IPC: G09F13/16
Filed: 1939-04-28
Abstract: 531,467. Signs. STEVENS, A. H. (Trafficscope Inc.). April 28, 1939, No. 12754. [Class 3 (ii)] [Also in Group XX] In order to afford unrestricted view along a highway where visibility is restricted as by a hillcrest or bend, a lighttransmitting refracting device is erected over the highway at or near the crest &c. The device at a crest may comprise a series of horizontal rows of prism-lenses 26, Fig. 3, located one above another in a framework 29 trunnioned (to permit yielding to. wind pressure) at 30 in a supporting structure 25 spanning the crest. The prism-lenses 26 have their refracting edges horizontal and upper most, Fig. 10, and have one plain face and one concave cylindrical face 28, but both faces may be concave cylindrical, and preferably the cylindrical faces all have the same radius of curvature. The prism-lenses have increasing refracting power downwards from row to row, and the assembly preferably spans from one quarter to three quarters of the width of the highway. Protection from the weather is afforded by a hood and side wings. The prismlenses may be solid, and of glass or plastic material, e.g., a vinyl resin; or they may be glass vessels filled with liquid which may be non-freezing, e.g., a mixture of methanol and a solution of calcium chloride. In addition to or instead of the prism-lenses 26, a set of prisms 41, Fig. 10, with their refracting edges vertical may be similarly supported where visibility round a bend is desirably in 'addition to or instead of visibility beyond a crest.
Patent GB-1032965-A (GB)
Title: Improvements in or relating to baling presses
Inventor: SCHLEMMER MANFRED
IPC: A01F15/08
Filed: 1964-03-26
Abstract: 1,032,965. Baling presses. VEB. KOMBINAT FORTSHRITT LANDMASCHINEN March 26, 1964, No. 12768/64. Heading B5F. In a baling press, access to binding mechanism during a binding operation is prevented by a guard member 14 which cannot be pivoted about its mounting shaft 13 if an abutment 10 on a pivoted lever 6 blocks the movement of a segment 15 mounted on shaft 13 (see Fig. 3, not shown). When the lever 6 which is pivoted at 5 is in the non-blocking position seen in Fig. 1 (not shown), its other end 9 engages a coupling pawl 11 of a single revolution clutch and prevents operation of the binding mechanism. A toothed wheel 3 rotated by pressed material in the pressing channel 2 is connected to the lever 6 so as to release the pawl 11 and render the binding mechanism operative after a predetermined rotation of the wheel 3. The connection is afforded by a member 7 pivoted to the lever 6 and having a bent-over end portion carrying a rack for engagement with a toothed portion of a shaft 4 carrying the wheel 3. A spring 8 pulls the lever 6 into the guard locking position when a recess at the end of the member 7 is in line with the shaft 4. The parts are returned to the positions shown in Fig. 1 by a cam 17 engaging an arm 16 rigidly carried by the lever 6.
Patent GB-1341118-A (GB)
Title: Valves for delivering metered amounts of pressurised aerosol materials from containers therefor
IPC: B65D83/14
Filed: 1971-04-30
Abstract: 1341118 Pressurized dispensing containers COSTER TECNOLOGIE SPECIALI SpA 30 April 1971 [2 May 1970] 13007/71 Heading F1R [Also in Division B8] A valve for delivering metered amounts of pressurized aerosol material from a container comprises a chamber defined by walls 1, 2, 3, apertures 7 in the wall 2, a tube 9 extending from the wall 3, and a cylindrical body 16 surrounding a portion of the tube and having a resiliently deformable edge portion 15 overlapping the apertures, a space defined between the body and the tube being in communication with the chamber via annular groove 17 and passageway 18. A spring biased valve member controls introduction of material to and dispensing of material from the space and the chamber. In operation aerosol material flows via pipe 14, tube 9 and grooves 13 to fill the chamber and space. Depression of the valve member causes flow via the grooves 13 to be terminated and dispensing of the material via aperture 21 and bore 18. Part 23 of the valve member is a tight fit in a blind bore in part 22 of the member. For introduction of gas under pressure into the container a suitable attachment is applied to part 20 of the member which is depressed to permit gas to pass via bore 15, aperture 21, and apertures 7 to displace the portion 15 and thus flow into the container. Gas can also pass via passage 18, the space, and between the portion 15 and wall 2 into the container.
Patent GB-421774-A (GB)
Title: Hydraulic weighing device
IPC: G01G5/04
Filed: 1934-04-30
Abstract: 421,774. Weighing-apparatus. SONSALLA, W., 25, Kleist Strasse, Berlin. April 30, 1934, Nos. 13020 and 15673. Convention dates, April 28, 1933 and March 6, 1934. [Class 143] Hydrostatic apparatus.-In a weighing device wherein the load acts on a number of separate hydraulic balances and the fluid pressure in them is transmitted through separate tubes to the pistons of corresponding auxiliary chambers which are closed by diaphragms and all influence the same indicator, the auxiliary chambers are mounted one above the other and the movements of their pistons are transmitted mechanically to the piston of an hydraulic indicator measuring-chamber mounted coaxially with the auxiliary chambers. As shown in Fig. 1, the load plate 1 is supported on a number of pistons 2 each supported on a diaphragm 3 closing its oil chamber 4. Oil pipes 5 lead to chambers 6 closed by diaphragms 7 supporting pistons 8, 9. The piston 9 and vertical bars 11 extending from the pistons 8, bear upon a piston 13 pressing upon the diaphragm 14 of an oil chamber 15 connected in known manner to a manometer 16. The total pressure of the load upon the pistons 2 is thus transmitted to the manometer. The pistons 8, 9 and 13 may be fixedly connected to one another. In a modification, Fig. 2, the auxiliary chambers 6 are superposed coaxially within a frame 20 so that the lower pistons act upon the chambers above to transfer the total pressure to the manometer. Rings 18 guide the pistons. The tubes 5 are flexible or jointed to follow the movements of the chambers.
Patent GB-611388-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/02
Filed: 1946-04-30
Abstract: 611,388. Heavy-current switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 30, 1946, Nos. 13031 and 13032. Convention dates, April 30, 1945, and May 19, 1945. [Class 38 (v)] A liquid-break circuit-breaker mounted on a steel framework 1 comprises an enclosure 10, a high-voltage insulating bushing 25, passing through the top of the enclosure, and a lower terminal 7. The enclosure 10 comprises an insulating cylinder 18 surrounded by a porcelain weather-proof casing 11. Spring washers 15 bolted between the steel rings 17, 14 at the lower end of the insulating cylinders 11, 18, hold them respectively in tension and compression. The arc - extinguishing unit 26 mounted on the lower terminal may be that described in Specification 571,091. The moving contact 29, which telescopes into the bushing 25, is formed with a rack engaged by a sector. driven pinion supported in plates on the lower end of the bushing 25 and generally designated 28. An arm on the driving sector is pivoted to an insulating connecting rod 42 pivoted at its upper end to a crank 43 on the operating spindle 45, which may be common to several such breakers. A spring buffering arrangement 46 engages the opposite end of the crank 43. In a modification, Fig. 5 (not shown), the contact 29 may be connected directly to the connecting rod; or in Fig. 6 (not shown) the arcing unit 26 may be supported on the lower end of the bushing 25, and the moving contact carried in guides on the lower terminal; or in a further modification, Fig. 7 (not shown), an arcing unit co-operating with a hook-shaped contact as described in Specification 417,636 may be used. The Specification states the construction may also be applied to gas-blast or air-break circuit-breakers.