baber/WOPTO huggingface dataset:
Patent GB-660058-A (GB)
Title: Improvements relating to dish washing machines
IPC: A47L15/06
Filed: 1949-02-22
Abstract: 660,058. Dishwashing machines. CARLSTEDT, S. B. F. Feb. 22, 1949, No. 4815/49. Class 138 (i) In a dishwashing machine in which washing liquid is impelled by blades arranged about a horizontal shaft against dishes in a stand above the blades, but excluding a machine as claimed in Specification 649,861, three independent blades are arranged along the shaft and are circumferentially angularly displaced relative to each other uniformly, each blade being dynamically balanced by a counterweight having a liquid meeting area substantially less than that of the blades. The dishwashing machine com prises an upper container 10 of sheet metal in which is mounted a dish stand 12 and a lower part 16 of cast metal in which is mounted a horizontal shaft 24 carrying three blades generally indicated by 30. The shaft is driven from a motor 22, e.g. series motor, through a belt 26 and pulley 28. The blades which are angularly displaced to each other through 120 degrees each comprise a bearing sleeve 32, Fig. 5, a counterweight 38, two arms 34 and a blade element 36 which has a cylindrical surface 40 limited by two end surfaces 42 so that the blade element presents a trough-like configuration. The centre lines of the two outer blade elements are disposed somewhat obliquely to the centre line; of the shaft 24 as shown in Figs. 2 and 3 The blade elements are preferably the same size and are advantageously so dimensioned as to extend in the longitudinal direction of the shaft almost to an overlapping position so that the combined surfaces of the elements will approximately correspond to the surface of a vane extending along the whole length of the shaft. Ridges or the like 43 adapted to guide the liquid thrown up by the blades are arranged on the side of the lower portion 16. The blades may consist of plane rectangular plates secured directly on the shaft, the outermost edge of these blades being bent slightly upwardly in the direction of rotation of the shaft.
Patent GB-608117-A (GB)
Title: Voice frequency ringer
IPC: H04J1/14
Filed: 1946-02-15
Abstract: 608,117. Voice-frequency signalling. STANDARD TELEPHONES & CABLES, Ltd. Feb. 15, 1946, No. 4826. Convention date, Feb. 21, 1945. [Class 40 (iv)] Arrangements at a carrier channel termination for the interconversion of low-frequency and voice-frequency ringing currents comprise means responsive to L.F. ringing current which detunes the receive oscillator of the channel to produce V.F. ringing currents, unbalances the hybrid connection to the L.F. line so that said current is transferred to the send branch where it modulates the output of the send oscillator; and means normally connected to the receive branch which discriminates between incoming calling currents from the carrier channel and speech currents, transmitting L.F. ringing current over the L.F. line in the former case. As shown, the A.C. relay REL1 responds to 20 c.p.s. ringing current from the exchange, disconnects the hybrid, alters the frequency of the receive oscillator and connects its output across half the primary winding of the demodulator output transformer. The voicefrequency signals thus produced pass through the unbalanced hybrid and modulate the transmit oscillator, the output of which passes via the directional filter to the high-frequency line. The signal receiving equipment comprises a discriminator RD connected to an additional secondary of the receive amplifier output transformer TR over a contact of REL1. The valve T does not normally pass enough plate current to energize REL2, but its output circuit includes a circuit L1, C5 tuned to the signalling frequency, in series with a resistor R3. Potential developed across the former is fed back as positive bias to the control grid of T, while that developed across the latter is fed back as negative bias, so that REL2 operates only to the pure signalling frequency and applies 20 c.p.s. current to the L.F. line. In a modified discriminator, Fig. 2 (riot shown), the signalling frequency passes through a band-pass filter and is applied to the grid of the valve, while other frequencies pass through a band-stop filter and are rectified, the negative half-cycles being passed as negative bias to the valve. Relay REL2 is operated by the rectified output of the valve in the case of the reception of signalling frequency alone.
Patent GB-630157-A (GB)
Title: Fluid seals for rotating shafts
IPC: F16J15/36
Filed: 1947-02-19
Abstract: 630,157. Stuffing-box substitutes. BENDIX AVIATION CORPORATION. Feb. 19, 1947, No. 4873. Convention date, Feb. 27, 1946. [Class 122(v)] A fluid seal comprises a thrust member 9 rotating with a shaft 1 and housing a sealing ring 11 urged by a spring 15 into contact with a bearing 16 attached to a spool member 17 which is urged axially by a disc spring 18 and secured to the housing 4 by a flexible diaphragm 21, the securing means comprising a compressible sealing washer 25, a ring plate 27, clamping ring 20, and a retaining snap ring 33. The ring plate 27 has a tab 28 which fits into a slot 29 in the housing 4 and two bent tabs 31 which fit into slots 30 in a ring 22 securing the diaphragm 21 to the member 17. The diaphragm is thus relieved of torsional stress due to friction, and by being secured from the side remote from the sealing faces is readily removable.
Patent GB-587118-A (GB)
Title: A machine for mixing and applying comminuted materials such as cementitious material or sand
IPC: B28C7/16
Filed: 1944-03-16
Abstract: 587,118. Cement guns. WESTBERG CO. March 16, 1944, No. 4929. Convention date, Jan. 11. [Class 20 (ii)] [Also in Groups XXIII and XXX] A machine for mixing and applying cementitious material, of the type comprising a horizontally-disposed conveyer co-operating with a pocketed rotary valve and in which compressed air is introduced between the conveyer housing and the valve housing, includes means for sealing the faces of the valve to prevent leakage of air. Cement (or sand) is introduced into a hopper 27 where it is agitated by rotating plates 74 and falls into the pockets 55 of a rotating valve 35 whence it drops into a chamber 17 and on to the floor 15 of a conveyer housing in which rotates a screw 16. As it falls through the chamber 17, air under pressure from pipe 82 enters and agitates the falling material. When the material reaches the end of the conveyer housing it is further agitated and impelled along by compressed air which, coming from a pipe 83 via the hollowed shaft 94 of the conveyer, emerges at orifices 115. An agitating blade 116 is disposed on the end of the conveyer shaft. The cement &c. then proceeds along a flexible pipe 89 to a discharge nozzle 90 where it is mixed with water entering through a pipe 126. The valve 35 is tubular in structure and its end faces are sealed by packing rings 52 which are compressed by means of screws 54 and intermediate rings 53. The peripheral faces of the valve housing are sealed by means of arcuate rubber strips 67. A sealing layer of packing grease is maintained in the spaces 48 between the valve and the valve housing. The valve is supported on a shaft 34a journalled at its right-hand end, Fig. 1, in the valve housing and at its left-hand end in a bearing 37 carried upon a standard 38. A lock nut 34 holds the valve in position on a tapered portion 34b of the shaft and permits the valve to be easily removed from the shaft when the valve housing end plate 31 has been removed. The shafts 34, 94 are driven via gears from an electric motor 132. Specification 465,796 is referred to.
Patent GB-557644-A (GB)
Title: Improvements in or relating to devices for determining the median value of a group of measurements
IPC: G01C1/10
Filed: 1941-04-15
Abstract: 557,644. Median indicating devices. BAUSCH & LOMB OPTICAL CO. April 15, 1942, Nos. 4999 and 5000. Convention dates, Feb. 25, 1941 and Sept. 25, 1941. [Class 106 (iv)] A device for determining the median value of a group of measurements, comprises a plurality of indicating elements adapted to be moved so as to indicate independently the value of each measurement of the group, and means for determining the value of the median of the measurements indicated by the relative positions of said indicating elements. The invention is described as applied to a sextant in which rotation of knurled wheel 25 tilts the usual reflector and indicates this angle on a scale. Wheel 25 gears with wheel 41 on shaft 38 which carries a number of indicating discs 43 which can turn with shaft . 38 or can be held stationary by spring detents 53 having projections 54 engaging notches 44 in the discs. Initially the parts are as shown in Figs. 2 and 3, with discs 43 held stationary. A first reading is taken, wheel 25 being rotated. Spring-pressed handle 64 is then oscillated and through pawls 75, 77, advances cam member 59 one step to press back the first spring detent 53 and release the first disc 43 for rotation with shaft 38. A second reading is taken, and the first disc 43 is slightly displaced. A second operation of handle 64 releases the second disc, and a third reading is taken. The operations continue until all or as many readings as are desired have been taken, when the discs 43 appear as in Fig. 9. By observation, the median is selected and wheel 25 rotated to make the median coincident with the fiducial line 45<SP>1</SP>, whereupon the mean value of the readings is shown on the indicator 27, Fig. 1 (not shown), driven by wheel 25. Cam member 59 may be returned to the right under spring action at operation of slide 79 which releases pawls 75, 77. A complete rotation of wheel 25 then relatches all discs 43. In a modification, the detents are controlled by cams on shaft 86, Fig. 12, which is rotated under the control of spring-pressed pawl 96, handle 89 and disc 101, the latter having a number of equal spaces for bringing the cams into effect in succession, and a long space which renders the normal stroke of handle 89 inoperative when all the detents have been released, so that the cams shall not turn full circle until the operator has taken his mean and released spring-pressed stop 92 to allow a long stroke of handle 89. As before, a complete rotation of wheel 25 will now relatch all the discs.
Patent GB-829880-A (GB)
Title: Improvements in or relating to marine craft
IPC: B63H11/08
Filed: 1956-02-17
Abstract: 829,880. Propelling ships; reducing resistance. BOEHM, E. L. Feb. 17, 1956 [Feb. 17, 1955 ; June 29, 1955], No. 5034/56. Classes 113 and 114. A marine craft has a chamber located towards the front at 9 which has an inlet 7 and outlets 10. The chamber reduces the velocity of the water after entry and increases it at outlet, e.g. the chamber may be barrel shaped. The propulsion unit of the craft comprises an engine 1 driving a turbine 2 provided with an inlet 5 and outlets 6. The area of opening of the inlets 5, 7 may be variable and additional outlets 15 may be provided from the turbine 2. The craft has fins 11 and the outlets 10 are located to allow a flow over them. Additional inlets and outlets 14 may be provided on the craft.
Patent GB-1210422-A (GB)
Title: Improvements in the continuous removal of dissolved gases from liquids
Inventor: BRYDGES THOMAS GERALD
IPC: B01D19/00
Filed: 1968-01-31
Abstract: 1,210,422. Degassing. NATIONAL RESEARCH DEVELOPMENT CORP. 21 Jan., 1969 [31 Jan., 1968], No. 5040/68. Heading B1M. Water to be degassed is contacted with a countercurrent stream of stripping gas while forming a thin film on the inside wall of a cylindrical reactor. In Fig. 2, water which has been -treated as above with helium to remove dissolved air and CO 2  in a cylindrical chamber (1) (Fig. 1, not shown) enters at 25, sodium hypobromite solution enters at 26 to oxidise any ammonia in the water to nitrogen, the resulting solution is thrown onto the wall of cylindrical chamber 5 by cruciform paddles 31 to form a thin film where it contacts a countercurrent stream of helium introduced at 22 which strips the nitrogen from the water. U tube 11 maintains a liquid level in chamber 6 about one third of the diameter of chamber 5. The nitrogen is dried (7) and measured in a katharometer. Paddles 31 are rotated by magnet 33 which interacts with a rotating magnet placed outside chamber 5.
Patent GB-417026-A (GB)
Title: Improvements in differential work-feeders for sewing machines
IPC: D05B27/02
Filed: 1934-02-16
Abstract: 417,026. Sewing-machines. MAUSERWERKE AKT.-GES., Oberndorf-on-Neckar, Wurtemberg, Germany. Feb. 16, 1934, No. 5174. Convention date, March 9, 1933. [Class 112.] A differential work feed comprises a main feed 4 which drives an auxiliary feed 5 by a connection permitting of variation of the relative movement of the feeds. The main feed carrier 13 is actuated by a pitman 23 and slotted arm 24. The auxiliary feed carrier 14 is actuated by an arm 27 depending from the main feed frame 6 and links 28, 30. An arm 33 depending from the auxiliary feed frame 7 is connected by a link 32 to a ball joint 29 connecting the links 28, 30. Relative adjustment of the feed is effected by moving the connecting point 34 of the link 28 with the arm 27. Upward and downward movement is imparted to the feeds by a main shaft eccentric 15. The guide 18 for the feed carriers 13, 14 is adjustable.
Patent GB-704750-A (GB)
Title: Improvements in piezo-electric pick-ups
Inventor: CHAMBERLAIN ALLAN GEOFFREY
IPC: H04R11/10
Filed: 1950-03-02
Abstract: 704,750. Gramophone pick-ups. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 23, 1951 [March 2, 1950], No. 5249/50. Class 40 (4) [Also in Group XXXVIII]  A piezo-electric plate 3 of, e.g. Rochelle salt, is mounted for torsional oscillations about a longitudinal axis between blocks 4, 5 of resilient material in a two-part casing 1, 2. The ends of the plate have clips 9 carrying shafts 10, 11 surrounded by resilient bushes 12 to which shafts are soldered arms 13 having needles 14, 15. The casing has an extension 16 so mounted on a pick-up arm 17 that it may be rotated through 180 degrees to bring either of the needles into a record playing position. Spring-pressed balls 20 hold the casing in the desired positions, and a screw 18 prevents longitudinal movement of the casing. Electrodes (not shown) are provided on the wide faces of the plate and may be connected to rivets carried on a panel 6 of insulating material leads being connected to the rivets and extending through an opening 8 in the casing. The needles made, e.g. from sapphire, have tips of different radii for use with normal and long-playing records. The arms 13 may be arranged at any spaced points along the longitudinal axis of the plate.
Patent GB-1485696-A (GB)
Title: Cutting tools
IPC: B23C5/22
Filed: 1975-02-07
Abstract: 1485696 Milling cutters; cutting tools; boring head VALERON CORP 7 Feb 1975 [11 Feb 1974] 5256/75 Headings B3K B3B and B3C A cutting tool, e.g. for turning, boring or milling, comprises a body, e.g. an annular body 10, at least one recess for receiving an indexable polygonal insert 24 and comprising a pair of insert locating surfaces 18, 20, at least one slot 14 formed respectively in the body adjacent the recess and comprising a third seating surface 36, at least one anvil 22 to which the insert 24 is secured and which is received respectively in the or each of the slots 14 and seated on said third surface 36, and locking means 58 for simultaneously retaining the anvil 22 in the slot 14 and the insert 24 in its recess, against the said surfaces 18, 20, 36. The locking means 58 has a conical end 60 which engages an offset conical depression in the anvil to draw it axially and radially inwards in a line of action which is oblique to the said surfaces 18, 20 and 36. An extension 46 in the anvil causes it to rotate to hold the insert sides against the seating surfaces 18, 20. The said seating surfaces may be formed as individual pockets or as continuous surfaces of revolution around the annular body (Figs. 4-8, not shown). On the these surfaces of revolution may be convex to provide a point contact with the insert. This convex surface is used with lighter cutting forces so that, depending on which surface 18, 20 is convex, the cutting tool may be used for rough milling and finish boring, or for rough boring and finish milling. The inserts 24 may be set for positive or negative rake cutting depending on the configuration of the surfaces 18, 20 and slot 14.
Patent GB-771021-A (GB)
Title: Improvements in and relating to speed responsive centrifugal devices
IPC: H01H35/10
Filed: 1955-02-22
Abstract: 771,021. Magnetic switches; centrifugal switches. GENERAL ELECTRIC CO. Feb. 22, 1955 [Feb. 23, 1954], No. 5304/55. Class 38(5) [Also in Group XIX] A switch intended for disconnecting the starting winding of a single phase motor when the motor attains a predetermined speed, comprises, Figs. 2, 3, a centrally apertured magnetic disc 12 tiltably mounted on the motor shaft 5 by a pair of projections 14 extending into the disc. aperture 16 and engaging a pair of holes 13 in the shaft. The aperture 16 is sufficiently large to permit the disc to assume the canted position shown under the bias of a leaf spring 18 fixed at one end 19 to the disc and at the other end to the shaft. At the predetermined speed the disc is tilted by centrifugal force about the projections 14 into position perpendicular to the shaft, and in this position it rotates beneath a permanent magnet 35 fixed to the free end of a contact-carrying blade 28 whereby the blade is pulled downwards against its bias to separate a contact 32 thereon from a fixed contact 26. A stop 36 limits the downward movement of the blade. Notches 21 are cut in the disc periphery opposite the projections 14 to prevent opening of the contacts should the disc come to rest with its diameter through the projections passing also through the magnet 35. In a modification Fig. 4, the movable contact 45 is mounted on a spring biased permanent magnet 47 and is positioned together with the fixed contact 44 in a non-magnetic conducting housing 41 which may be hermetically sealed.
Patent GB-139613-A (GB)
Title: Improvements in luffing cranes
IPC: B66C23/10
Filed: 1919-03-04
Abstract: 139,613. Souness, T. March 4, 1919. Jib cranes.-The load is traversed in an approximately horizontal path during luffing by passing the hoisting-rope over two sets of pulleys, one of which is carried on the jib and the other is movable relatively to the first, but so that their axes are always in the same vertical plane. The pulleys 13 are carried by the jib, and the pulley 12 is carried by an arm 9 pivoted at 10 and connected to the jib by a pair of equal links 3, 4, the common pivot of which is carried by a cross-head 5 moved horizontally to luff the jib by a screw 6. The arm 9 is equal in length to the distance of the pulleys 13 from the jib pivot (one-quarter of the jib length in this case). The pulley 12 may slide in a quadrant instead of being carried by the arm 9. In a modification, the pulleys 13 are placed at one-quarter or one-sixth of the length of the jib from its pivot, and the upper pulley or pulleys 12 slide in a slot in a member linked' to the jib in such manner as to keep the two sets of pulleys always in the same vertical line, the hoisting-rope, in this case, passing from the jibhead sheave to the jib pivot, then over the pulleys 12, 13, and finally over a pulley at 10.
Patent GB-253834-A (GB)
Title: Improvements in ladders or fire escape apparatus
IPC: E06C9/14
Filed: 1926-02-26
Abstract: 253,834. Hawley (Speciality Works) Ltd., J. J., and Hawley, H. Feb. 26, 1926. Ladders.-Relates to ladders of the kind having side members 1 of rope or other flexible material brought together at one end of the ladder and twisted or secured together, and consists in providing the common portion 5 so formed with a loop 6 and a cross bar 7. In use, the loop is passed through a ring or the like on a floor near a w ndow and is expanded over the cross-bar. The rings 2 of the ladder have heads 3 which are passed through the side members and secured by binding or clips 4. Flexible hand holds of rope may be attached to rings on the window frame to facilitate stepping on to the ladder.
Patent GB-349451-A (GB)
Title: Improvements in closures for metal cans or containers
IPC: B65D43/02
Filed: 1930-02-19
Abstract: 349,451. Lever-lids. KENNINGTON, J., Canister Works, Nicholson Street, Hull. Feb. 19, 1930, No. 5507. [Class 125 (iii).] Relates to lever lidded metal cans of the type in which both an outwardly extending rim on the dished lid and an annular ring at the top of the can, terminate in beadings. According to the invention the lid 15 of the can has a beading 16 which lies directly above the beading 12 on the ring and the beading on the lid is interrupted or depressed to provide recesses of short length to facilitate the insertion of an opening lever. The beading 16 may be wired.
Patent GB-621663-A (GB)
Title: Improvements in and relating to door and like locks
IPC: E05B63/24
Filed: 1947-02-26
Abstract: 621,663. Striking plates. KORESKA, R. J. Feb. 26, 1947, No. 5558. [Class 44] In a striking plate the lock and latch bolt may be released from their respective openings 5 and 6 by displacing retaining members 3 and 4 surrounding the openings. The retaining members carry side flanges 14 pivoted to lugs 7 on the striking plate proper 1 and are spring-urged to the locking position of Fig. IV. A sliding button 24 carries an abutment 22 engaging a lug 19 on the member 4 whereby when the button is pressed the locking bolt is released from the striking plate. The button may have an abutment to displace the member 3 at the same time or it may be adapted for rotation through 180 degrees to engage either of the lugs 18 or 19.
Patent GB-144363-A (GB)
Title: Improved means for carburetting air and for regulating the supply of fuel to internal combustion engines
IPC: F02M3/14
Filed: 1919-03-06
Abstract: 144,363. Grace, C. J. March 6, 1919. Spray carburettors.-Liquid fuel is supplied from a float chamber to the hollow spindle 3 of the throttle valve 2 and issues through radial passages 9 in the valve at starting and during normal running through passages 8 which register in succession as the valve opens with a slot 10 in the spindle. The valve and spindle are connected through link-work, Fig. 4. A lever 22 on the spindle carries a link 23 attached to a vertically sliding block 20 to which a lever 14 on the valve is also connected by a link 18, a pin on the end of which slides in a slot 15 in the lever 14. In Fig. 4, the pin is shown at the inner end of the slot, consequently the spindle turns through a very small angle relatively to that through which the valve moves and passages 9, 11 are put out of register while the passages 8, 10 are gradually brought into register. When the pin is at the outer end of the slot both valve and spindle move at the same rate and the passages 9, 11 remain open throughout the movement while the passage 8, 10 remain closed. The position of the pin is adjustable by a Bowden-wire to any position between these extremes.
Patent GB-766622-A (GB)
Title: Prevention of surface crazing of rubber-resin blends by aromatic diamines
IPC: C08L9/02
Filed: 1955-02-25
Abstract: The surface-crazing of a blend of 25 to 90 per cent of a styrene-acrylonitrile resin with a butadiene-acrylonitrile rubber on ageing or exposure to ozone is prevented by incorporating 0.1 to 5.0 per cent of a diprimary aromatic amine or a salt thereof. Amines specified are benzidine, o-, m- and p-phenylenediamines, p,p1 - diaminodiphenylmethane, p,p1 - diaminodiphenyldimethylmethane and dianisidine, and the salts may be the hydrochlorides, sulphates, oxalates, phosphates and maleates.  The amines may be incorporated by milling, or the resin/rubber blend may be coated or dipped into an alcohol solution of the amine.  The blends described in Specification 632,722 may be used.  In the example, black and white stocks containing calcium stearate, titanium dioxide and carbon black and a rubber cross-linked with divinyl benzene, are used.