baber/WOPTO huggingface dataset:
Patent GB-880070-A (GB)
Title: Improvements relating to spring cushioning devices
Inventor: BACHE JOHN KENNETH
IPC: B65D81/07
Filed: 1958-10-15
Abstract: 880,070. Springs. AVIATION, MINISTER OF, and BACHE, J. K. Oct. 2, 1959 [Oct. 15, 1958], No. 32860/58. Class 108(3). [Also in Group XVII] A spring unit for separating the inner and outer casings of a packaging container comprises a series of parallel torsion bars 1a, Fig. 9, carrying parallel lever arms 7a which are interposed between the casings to deflect angularly and apply twisting couples to the torsion bars 1a. In one example the torsion bars 1a are clamped to one casing by plates 3. Fig. 2, and are rotatable in a locating plate 5 which may be initially disposed away from the casing due to a small set made in the torsion bars to allow for tolerance on assembly. The lever arms 7a are alternately crossed-over and hooked ends 8b of the arms 7a are slidable on the other casing which may carry wear plates (not shown). Wires 20 passed through the hooked ends 8b retain the arms 7a in the required position with a pre-loading. In a modification the ends 8, Fig. 8, of the lever arms 7 are slidable on a cam plate 10 which has longitudinal grooves 12 to guide the sliding ends and is locked to the lever arms by a a slotted plate 16. A raised cam face 15 on the plate 10 assists initial movement of the arms 7. Various means are described for pre-loading the arms 7 such as by forming interengaging cranked portions or attaching cross-pieces intermediately of the lengths where the arms are crossed over.
Patent GB-721083-A (GB)
Title: Improvements in and relating to a play-compensating device for the gear wheels of a kinematic chain
IPC: F16H57/12
Filed: 1952-12-30
Abstract: 721,083. Toothed gearing. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Dec. 30, 1952 [Jan. 7, 1952]. No. 32954/52. Class 80 (1). The effect of backlash in a gear train 4, 5, 6, 7 from, for example, the spindle 1 of a lathe or grinding machine to a lead screw 3 on reversal of the drive is compensated for by means of an auxiliary drive in one direction of rotation onto the lead screw through a slipping clutch and a one-way coupling. The clutch 24 and one-way coupling 32, 16, 17 are arranged between a sleeve 18 secured to the lead screw 3 and a gear 13 in the drive to the spindle 1 from a shaft 8. For one direction of rotation the one-way couplings 32, 16, 17 is free and the gears 4, 5, 6, 7 'drive the lead screw directly For the other direction of rotation the coupling is fixed and tends to drive the screw faster than the gears 4, 5, 6, 7 which results in slipping of the clutch 24 and the backlash being maintained in the same direction in the train 4, 5, 6, 7. The one-way'coupling is shown as rollers 16 in inclined recesses in the member 17 but may alternatively be. constituted by pawls on one member engaging ratchet teeth on the other. The invention is applicable to worm and bevel gearing as well as spur gearing.
Patent GB-840759-A (GB)
Title: Improvements in the manufacture of studs, bolts, screws, and like components
Inventor: TELCO PAUL
IPC: F16B35/04
Filed: 1957-10-22
Abstract: 840,759. Bolts &c. TELCO Ltd. Oct. 22, 1958 [Oct. 22, 1957], No. 32969/57. Class 89(1). A bolt, stud or like screwed-component has the screw-threads over a part 3 of its screwedlength 2 rendered ineffective as screw-threads, without reducing the outside-diameter, by deforming the threads, e.g. by knurling.
Patent GB-1100724-A (GB)
Title: Improvements in the bleaching of pulp
Inventor: RAPSON WILLIAM HOWARD
IPC: D21C9/10
Filed: 1964-08-13
Abstract: 1,100,724. Bleaching pulp; textile treating apparatus. ELECTRIC REDUCTION CO. OF CANADA, Ltd. 11 Aug., 1965 [13 Aug., 1964], No. 33089/64. Headings D1L and DIP. Cellulose pulp, e.g. kraft, sulphite or groundwood pulp, is bleached by a method in which the bleaching liquid, e.g. an aqueous solution of chlorine, chlorine dioxide, a hypochlorite, hydrogen peroxide, a hydrosulphite, a borohydride or peracetic acid, is caused to flow through a bed of the fibres comprising the pulp, the flow being maintained throughout substantially all of the bleaching period. The constituent fibres of the pulp bed remain stationary or nearly so with respect to each other during the process although the bed as a whole may be moved with respect to the stream of bleaching liquor by for example forming the bed on a conveyor or on the outer surface of a perforated rotating drum. The treatment may be effected by supporting the pulp 2 on an endless circulating wire screen 1 and spraying it with various treating and washing liquids, e.g. bleaching solution supplied through pipes 4 and 8, washing water supplied through pipes 5, 7 and 9 and caustic solution supplied through pipe 6, by a series of nozzles 3 arranged above the pulp, the residual liquids being collected separately in boxes 10 arranged beneath the wire screen, and having outlets 11 through which the liquids may be withdrawn to waste or for recycling. All the treatments may be carried out at the same temperature, e.g. 70‹C, although successive treatments may be carried out at different temperatures if necessary.
Patent GB-627723-A (GB)
Title: Improvements in or relating to electrical timing relays
IPC: H01H47/18
Filed: 1946-11-07
Abstract: 627,723. Electromagnetic relays. IGRANIC ELECTRIC CO., Ltd. Nov. 7, 1946, No. 33110. Convention date; Nov. 7, 1945. [Class 38(v)] A relay which, when energized will cause its contacts 17 to move from the central position shown into engagement with a contact 18 and then, after a time interval, back past the central position into engagement with a contact 19, has two windings 20, 21 arranged so as to act in opposition, the winding 21 being shunted by a condenser 22. When the switch 11 is first closed little current flows through windings 21 owing to the condenser 22 being charged and the winding 20 overpowers it, but later the winding 21 overpowers the winding and reverses the movement.
Patent GB-1260000-A (GB)
Title: Improvements in soldering machines
Inventor: SIBBALD KENNETH ROBERT
IPC: H05K3/34
Filed: 1969-07-01
Abstract: 1,260,000. Soldering. FRY'S METALS Ltd. 11 Aug., 1970 [1 July, 1969], No. 33127/69. Heading B3R.  In a method of soldering a lead 10 of a component, e.g. an integrated circuit component, to a pre-tinned conductor 11 on a printed circuit-board an electrically-heated tool is applied to the lead under low initial pressure and the pressure progressively increased, the heating current of the tool being switched on prior to, or at any rate at, the moment of contact of the tool with the lead. The tool 15 may be advanced by a two-speed pneumatic ram 14 with a fast down-stroke followed by a slow inching movement the pressure being applied to the leads through a helical spring which is gradually compressed. A jet of air X may be blown on the work during a cooling period in which the tool remains applied under pressure to the work. The tool may bond a plurality of leads simultaneously to corresponding conductors on the printed circuitboard.
Patent GB-331619-A (GB)
Abstract: 331,619. Automatic Telephone Manufacturing Co., Ltd., and Simpson, L. M. April 30, 1929. Totalizators.-In a system of keys for controlling electric circuits, for an electric totalizator, comprising a number of groups of keys at ticketissuing machines which send signals to a central apparatus for totalling the bets, where it is necessary that only one key is operated at a time, a mechanical interlock is provided between the keys of any one group, and an electrical interlock is provided between the several groups of keys. Each key corresponds to a particular runner and an operated key is locked in position until the bet is duly registered on the totalizing equipment. The keys consist of spring-returned plungers 1 each having an enlarged conical portion 5 which, on depression, operates sets of contact springs 6, while the lower end 8 has concavities on each side and enters between members of a series of balls or rollers 10 which completely fill the chamber 9, making it mechanically impossible to depress more than one key at a time in the same group. The end-wise movement of the rollers causes the pivoted lever 11 to close the contact springs 12, thus energizing the electromagnet 13, when the wedge 15 on the armature 14 engages the end roller to cause the depressed key to be gripped and retained in its depressed position. The electromagnets of all the groups are connected in parallel so that on depressing any key all the wedges rise and prevent the subsequent operation of a key in another group. The release of all the locks is effected by a relay operated from a control point, and all the keys may be locked to render the apparatus inoperable, in order to stop the betting at the start of a race.
Patent GB-1109289-A (GB)
Title: Anti-backlash worm gear jack
IPC: B66F3/18
Filed: 1965-08-03
Abstract: 1,109,289. Screw jacks. DUFF-NORTON CO. 3 Aug., 1965 [28 Oct., 1964], No. 33167/65. Heading B8J. A worm gear jack 10 comprises a lifting screw 14 threaded through a worm-wheel 30 driven via a worm-thread 21 and an anti-backlash nut 40 also threaded on the screw 14 and positioned immediately above the worm-wheel 30 to which it is connected by sliding driving pins 42. Backlash of the worm-wheel 30 is minimized by screwing down a shell cap 18 to hold the antibacklash nut 40 and the worm-wheel 30 between thrust bearings 32 and 34, a load being placed on one face of lifting screw-threads 15 by the interior threads on the anti-backlash nut 40, while the interior threads 31 of the worm-wheel 30 place an opposite loading on the threads. An indication of wear of the interior threads of the worm-wheel 30 is given by an offset developing between an upper edge 50 of the anti-backlash nut 40 and an upper edge 19 of the shell cap 18. This wear may be taken up by releasing shell cap set-screws 86 and re-tightening the shell cap 18. Gaps 57 and 59 between the antibacklash nut 40 and the worm-wheel 30 are so arranged that adjustment is limited at a point safely in advance of unsafe wear of the wormwheel thread 31. A single grease fitting 82 is provided, radial lubrication bores (not shown) in the worm-wheel 30 transmitting lubricant force fed by the worm drive screw-threads 21 interiorly of the worm-wheel 30 and thence along the lifting screw-threads 15.
Patent GB-393935-A (GB)
Title: Improvements relating to the storage and preservation of meat
IPC: A23B4/16
Filed: 1931-12-02
Abstract: Beef is preserved by a single stage process in a gaseous atmosphere at a suitable temperature by simultaneously withdrawing or displacing air from the beef storage chamber and replacing it by carbon dioxide alone or mixed with nitrogen so that the atmosphere in the chamber contains more carbon dioxide than oxygen, the chamber being at substantially atmospheric pressure.  The gaseous atmosphere may contain about 10-17 per cent of oxygen, and about 20-50 per cent of carbon dioxide, the remainder being nitrogen, and the storage temperature may be 30-34 DEG  F.  The storage chambers may be such as are used for storing and transporting beef under chilled conditions but made gas-tight and provided with gas inlet passages and with outlet passages for the displaced air and vapours, pumps and fans being provided for accelerating the displacement of the air.  When enough gas has been introduced, the atmosphere inside the chamber is circulated, e.g. for 10 minutes, by a fan or air pump to obtain good mixing of the air and gas.  Means may be provided for circulating the atmosphere through an oxygen absorbing medium and for subjecting it to a liquefaction process to separate desired and undesired constituents.  Part of the atmosphere in the chamber may be replaced from time to time or continuously by fresh preserving gas or gas freshened by removal therefrom of part of its constituents, for example oxygen or emanations from the carcasses.  Part or all of the atmosphere may be replaced from time to time for a short period by pure nitrogen or fresh air to prevent adaptation of the bacteria to the new environment.  The carbon dioxide may be supplied from cylinders containing it in compressed or liquid form or from generating apparatus or by vaporizing solid carbon dioxide.  Mixtures of carbon dioxide and nitrogen used may be products of combustion or produced by absorption of oxygen from air.  Specifications 318,534, [Class 49, Food &c.], 391,256 and 393,663 are referred to.  The Provisional Specification also describes the preservation of other perishable tissues, e.g. mutton, bacon, fowls and game, and refers to the use of an atmosphere containing carbon dioxide as the main constituent, e.g. about 95 per cent of carbon dioxide and about 2 p per cent or less of oxygen.
Patent GB-634374-A (GB)
Title: Improvements in broadcasting systems
IPC: G04C23/00
Filed: 1946-11-11
Abstract: 634,374. Radio receiving circuits; radio signalling. ARMSTRONG, E. H. Nov. 11, 1946, No. 33423. Convention date, March 30. [Class 40 (v)] [Also in Group XXXIX] In a broadcasting system a supersonic tone is added to selected parts of the transmission, such as advertising matter, and the corresponding receivers are provided with means whereby these items are suppressed automatically or reproduced at a reduced level. The Figure shows a frequency-modulation receiver in which the first audio-frequency stage comprises a de-emphasis circuit 21, 22 and a pentode amplifier 24. The control tone is separated by a high-pass filter 32 and is applied over an amplifier and sharply-selective circuits 38 to a rectifier 40. A delay voltage is derived either as shown, from the cathode current of the amplifier 35 or by means of an adjustable potentiometer connected across the high-tension supply (Fig. 3, not shown). The rectified output is used to control the gain of the valve 24, being applied to the suppressor grid over a smoothing circuit and adjustable potentiometer 44. The control potential may also be applied to the grid by means of a switch 45, which may be arranged to come into operation when the potentiometer 44 is at maximum. A resistance 26 connected to the high-tension supply is utilized to stabilize the cathode bias of the valve 24. U.S.A. Specification 1,941,067 is referred to. According to the Specification as open to inspection under Sect. 91 the arrangement may be used' to give muting during tuning, the control then being derived from the noise present. This subject-matter does not appear in the Specification as accepted.
Patent GB-438394-A (GB)
Title: Mould shaking machine for foundries, ceramic works, artificial stone makers and the like
IPC: B22C15/30
Filed: 1934-11-22
Abstract: 438,394. Moulding-machines. ZIMMERMANN, G., 19, Lindemannstrasse, Dusseldorf, Germany. Nov. 22, 1934, No. 33604. Convention date, Dec. 7, 1933. [Class 83 (i)] [See also Group V] A pneumatic mould-pressing and shockless jarring machine has a valveless jarring device arranged within the pressing piston 3 so that, during pressing, the jarring device can be used to hammer on the mould table 7. This has a plunger 6 working in a cylinder 4, both being provided with ports and passages 11 ... 20, so that, when air is admitted at 11, the plunger is reciprocated and, as the cylinder 4 is carried by a spring 5 adapted to support the parts 4, 6, 7 and the filled mould, the shock of the table 7 on buffers 8 is not transmitted to the foundation. If air is also admitted to a pipe 2, the piston 3 rises and presses the mould 23, false flask 24, and pattern 22 against the fixed head H while the cylinder 4 reciprocates and strikes blows on the table 7 from below.
Patent GB-605040-A (GB)
Title: Improvements in or relating to door catches
IPC: E05B15/02
Filed: 1945-12-12
Abstract: 605,040. Striking plates and staples. WESTLAND ENGINEERS, Ltd., and MATTHEWS, E. Dec. 12, 1945, No. 33698. [Class 44] An adjustable '' latchhook " or staple is composed of a single length of wire comprising a bridge-piece h and two parallel end portions i-i slidable in position behind and clamped to a guide member f by a wedge-piece d operable by a screw or screws e accessible from the front.
Patent GB-1517391-A (GB)
Title: Flashlamps
IPC: F21K5/04
Filed: 1975-08-13
Abstract: 1517391 Flash lamp arrays GENERAL ELECTRIC CO 13 Aug 1975 [18 Sept 1974] 33742/75 Heading G2X A multi-lamp photo-flash array includes a cover made of a light-transmitting polymodal resinous branched block butadiene styrene copolymer containing from 70 to 95 weight per cent styrene. The cover is strong and resistant to fracture in the event of a flash-lamp exploding and has a Vicat softening point of approximately 200‹F, 90 to 95% transmission, an Izod impact strength of about 0À4 foot pounds/inch notch, a modulus of elasticity of 200,000 psi and a 100% elongation at a tensile pull rate of approximately 0À2 inches/minute.
Patent GB-838381-A (GB)
Title: Improvements in or relating to scouring or cleaning devices
IPC: A47L13/19
Filed: 1958-10-30
Abstract: 838,381. Scouring pads. SENIOR, H. Oct. 30, 1958 [Oct. 30, 1957], No. 33832/57. Class 19. A hand mitt for scouring or cleaning surfaces consists of an outer covering 2 of woven or knitted plastics filaments fashioned as a tube that is subsequently closed at one end and provided with an attached lining of one or more layers of fabric 3a, 3b. The lining may be stiffened by impregnation with plastics and /or may be impregnated with detergent or cleaning material, or such material may be inserted between two such linings through an aperture 5 at the partly joined together ends of the linings at the mouth of the mitt.
Patent GB-155247-A (GB)
Title: Improvements in ordnance breech mechanism
IPC: F41A3/08
Filed: 1920-12-01
Abstract: 155,247. Stambaugh, H. J., and Mc- Cann, G. M. Dec. 8, 1919, [Convention date]. Ordnance breech mechanism.-Relates to the type of screw mechanism having a. cam-device 24, 25 operated bv the closing movement of the carrier C to initiate locking rotation of the screw B, and conversely, by the unlocking rotation of the screw to initiate opening movement of the carrier. The invention consists mainly in slidably mounting the screw on an axially rotatable member 13 which imparts rotation to the screw through the cam 24; this rotation, through the medium of a second cam 29 on the carrier, producing the longitudinal movement of the screw necessary to seat the obturator 12 prior to the final locking rotation of the screw. The screw B is feathered on the member 13 which is rotatably mounted on the hollow spindle of the swinging carrier C. The member 13 carries on a pin 27 a roller 25 which engages the fixed cam surface 24 to rotate the member and with it the breech screw, the pin 27 engaging a fixed groove 28 to hold the carrier to the gun. During rotation of the screw, a roller 30 thereon engages the cam 29 fixed to the carrier to impart a longitudinal forward movement to the screw. The screw is rotated for unlocking and withdrawn by operating a crank handle 22 which rotates a shaft 20, a crank pin on which engages a crosshead slidably and rotatably mounted on the member 13.
Patent GB-429688-A (GB)
Title: Improvements in and relating to the production of models of wheels
IPC: G09B25/02
Filed: 1933-12-05
Abstract: 429,688. Toy vehicle wheels. LENNOX, F. C. GORDON-, 28, Berkeley Street, London. Dec. 5, 1933, No. 34139. [Class 132 (iii)] A model wheel comprises wire spokes 1 having a force fit in one or more circular rows of holes 2 in the rim 4 or secured therein by screwing into tapped holes, and engaging radial slits or recesses 7, 8 in the ends of a truncated cone or cylindrical hub 6, the slits extending over the entire end or only a short distance from the periphery. The spokes may be secured by solder or glue. The spokes may be crossed or laced. The rim 4 is of wood, metal or an artificial composition. The rim may be formed integral with a tyre 5 of the same material or the tyre may be moulded thereon or a detachable tyre of rubber may be provided. The hub 6 of the wheel is of the same material as the rim 4. A disc may be secured to each end of the hub and a metal plate 9 representing a hub cap may be glued on the outside of the hub 6.
Patent GB-194800-A (GB)
Title: Improvements in means for the fine mechanical adjustment of electrodes such as are used in spark gaps, detectors and the like
IPC: H01T9/00
Filed: 1921-12-19
Abstract: 194,800. Rushen, P. C., (Bing Werke vorm. Geb. Bing Akt.-Ges.). Dec. 19,1921. Crystal detectors; spark-gap apparatus.- The contact pressure against a crystal detector, or the distance between two spark electrodes, is adjusted by the movement of an eccentric or cam-shaped elastic band bearing against one of the parts in question. In Fig. 2, the pressure of a point-contact 1 against a crystal detector 22 for wireless signals is adjusted by means of the resilient scythe-shaped strip R counted on a rotary arm 4. In Fig. 3, two such eccentric strips 33 are mounted on, rotatable studs 30 and form the electrodes of a spark-gap, the sparking-distance being adjusted by turning cne or both of the studs 30. The invention is particularly suitable for toy wireless sets.
Patent GB-634271-A (GB)
Title: Improvements in or relating to means for facilitating boarding of vessels from the water
IPC: B63B7/08
Filed: 1947-12-24
Abstract: 634,271. Inflatable dinghies and rafts. ALBRECHT, A. R. Dec. 24, 1947, No. 34168. [Classes 113 (i) and 113 (ii)] A vessel 1, 2 has an inflatable raft 3 attached thereto to provide buoyant support for a person boarding the vessel from the water. The vessel may be an inflatable dinghy in which the raft may be inflated automatically at the same time as the dinghy.
Patent GB-321077-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/60
Filed: 1928-11-21
Abstract: 321,077. Loppacher, O. Nov. 21, 1928. Universal joints allowing angular, axial, and lateral displacements, particularly applicable for driving slowly-rotating heavy parts such as tube mills or drums, comprise driving and driven flanges 5 provided respectively with pairs of projections 7, 4, which have fiat-bottomed recesses 9, 8 and lie between flat faces 12 on a floating " cross 13. The faces 12 and 8, 9 are engaged by rocking pieces 10<1> and 10, on which struts 14 can rock, the cylindrical contact-faces of each pair of parts 10, 10<1> having a common axis perpendicularly intersecting that of the cylindrical faces of the associated part 14 at the point o. The rocking pieces 10, 10<1>, 14 are laterally retained by plates 15.
Patent GB-860475-A (GB)
Title: Means for interlocking electrical connector casings
Inventor: ROBINSON SAMUEL C
IPC: H01R13/62
Filed: 1958-10-27
Abstract: 860,475. Two-part couplings. ROBINSON MACHINE WORKS Inc. Oct. 27, 1958, No. 34303/58. Class 38 (1).  In a plug-and-socket connector of the type having mating outer casings 18, 38, the end of casing 18 is formed with a number of resilient tongues 34 having inturned ends 36, and the end of casing 38 is formed with a number of recesses 48 terminating in abrupt shoulders 50 behind which the tongues 34 snap when the coupling parts are engaged. The parts are released by turning them relative to one another so that the tongues ride out of the recesses on to lands 52.