baber/WOPTO huggingface dataset:
Patent GB-1384532-A (GB)
Title: Synchronous self-shifting clutches
IPC: F16D41/12
Filed: 1971-01-27
Abstract: 1384532 Positive clutches FLUIDRIVE ENG CO Ltd 20 Jan 1972 [27 Jan 1971] 3332/71 Heading F2C The synchronous self-shifting clutch shown comprises an input shaft 1 having a sleeve 3 on which an intermediate member 8 of the clutch is helically splined and movable to engage or dis-engage pawl and ratchet 24, 21, this member 8 having spline teeth 9 which engage with teeth 5 of the output member 4, and a baulking member 30, also helically splined to the sleeve 3 which by means of a cam surface can engage and move radial tappets 38 which in turn pivot pawls 24 of member 8 so that they cannot engage ratchet teeth 21 of the output member 4. The baulk member 30 itself has two sets of pawls (in opposite directions) which can engage teeth 47 of the output member 4 the arrangement being such that the pawl and ratchet 24, 21 are prevented from engaging when the direction of relative rotation between input and output would cause damage to them. Acontrol member 11 is provided which can lock the intermediate member in position (splines 13 and 14 in engagement, the member 11 and 8 being coupled by splines 15), or move it axially (abutment 18 engaging abutments on member 11). Operation.-The operation of the baulk member 30 is such that with member 4 rotating faster than member 1 the pawls and ratchet 21, 24 may be engaged, but with member 4 moving slower the pawls 45 cause the member 30 to move left to its baulking position (pawls 47 moving it back on reversal of this situation), to prevent engagment of pawls 24 and ratchet 21. With the pawl and ratchet engaged the clutch (teeth 5 and 9), engages by movement on the helical splines of sleeve 3 on change of direction of relative motion of members 1 and 4, and may be locked in this condition by member 11.
Patent GB-702335-A (GB)
Title: Improvements in or relating to sponge rubber products and process of manufacture thereof
IPC: B29C44/28
Filed: 1951-02-12
Abstract: 702,335. Sponge rubber coated' fabric; coating webs. ALDERFER, S. W. Feb. 12, 1951 [April 15, 1950 ; April 15, 1950], No. 3357/51. Class 140 A vulcanized layer of foamed and gelled rubber latex with a fabric attached to one surface thereof is prepared by depositing an unformed mass of foamed latex between a fabric and a surface while the fabric and surface are both in motion and while the fabric is kept at a fixed distance from the surface, maintaining the layer of foamed latex in contact with the fabric and the surface until the foam has gelled, separating the fabric with the layer of gelled latex foam adhering thereto from the surface, and vulcanizing the gelled latex foam. Foamed rubber latex containing vulcanizing, ageing, foaming, pigment, loading, and gelling ingredients, e.g. sodium silicofluoride, is supplied by shoot on to rubber or stainless steel driven belt 10 and piles up against vertically adjustable doctor blade 70 while confined by adjustable sideboards. Woven or knitted fabric 36, e.g. nylon, muslin, duck, drilling, silk or burlap is passed from feed roll 3 over idler roll 37 to a series of feeding and measuring rolls, including a spreader roll, which insure that the fabric is fed at a speed equal to that of belt 10, and thence round doctor blade 70, where it is applied to the levelled latex foam layer carried on belt 10. The composite fabric is carried on belt 10 through gelling chamber 1 where constant circulation of heated air at 150F. sets the latex foam. The composite fabric is lifted from the belt 10 by laterally adjustable tentering chains 4, which stretch and hold the fabric taut. The taut composite fabric is then passed on the tentering chains 4, in festoons round upper and lower pulleys 171, through vulcanizing chamber 2, where constant circulation of heated air, at 215F., humidified by steam is effected over and through the fabric by fans 176. The composite fabric is stripped from the tentering chains after passage through the vulcanizing chamber, the edges are trimmed, and the fabric wound on take-up roll 6.
Patent GB-1319932-A (GB)
Title: Double-walled screening cage for electrical component
IPC: H01F5/00
Filed: 1972-01-26
Abstract: 1319932 Electron beam deflecting apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Jan 1972 [29 Jan 1971] 3624/72 Heading H1D An electrostatic screen of the type described in Specification 1,280,289 comprises one wall 1 formed by one or more conductors wound in a left-handed helix and a second wall 3 wound in a right-handed helix; the component to be screened (e.g. a coil) is disposed between the two walls and causes equal and opposite effects in them. The helices may be multifilarly wound with adjoining conductors earthed at opposite ends, e.g. the conductor 5 is earthed at 9 whilst the conductor 7 is earthed at 11.
Patent GB-1419181-A (GB)
Title: Prostaglandins and method for preparing same
IPC: A61P31/04
Filed: 1973-01-24
Abstract: 1419181 Prostaglandins; organolithium compounds WISCONSIN ALUMNI RESEARCH FOUNDATION 24 Jan 1973 [26 Jan 1972 22 May 1972 29 Sept 1972] 3660/73 Headings C2C and C2J The invention comprises a process for preparing prostaglandins of the Formula I wherein R is H, CH 3  or CH 3 CH 2 ; R<SP>1</SP> is H, C 1 -C 9  saturated hydrocarbyl, pentenyl, hexenyl or benzyl; X is H, OH, 2-tetrahydropyranyloxy, OR<SP>11</SP>, wherein R<SP>11</SP> is C 1 -C 5  hydrocarbyl or benzyl, OCOR<SP>111</SP>, wherein R<SP>111</SP> is C 1 -C 8  hydrocarbyl or benzyl, or OCH(R 1 )OR 2 , wherein R 1  and R 2  each are C 1 -C 5  hydrocarbyl; n is 0 to 5; B is -CH 2 CH 2 - or -CH=CH-; Q is OH, OCH 3  or OCH 2 CH 3 ; and the ring A is by reacting compounds of the Formula II wherein B and ring A are as defined above with the proviso that any free hydroxy groups in ring A are protected, and Q is OCH 3  or OCH 2 CH 3  with compounds of the Formula III trans-Li-CH = CH-C(R)(X<SP>1</SP>)(CH 2 ) n R<SP>1</SP> wherein X<SP>1</SP> is H or protected hydroxy as defined above, and if desired removing any protecting groups and/or ester groups, and if desired converting in known manner one ring A to another ring A, and the novel compound of the formula which are obtained by the above process. The following intermediates and starting materials are also prepared: ethyl 1,3-cyclopentadieneheptanoate, ethyl 3-hydroxy-5-oxo- 1 - cyclopentene - 1 - heptanoate ethyl 5- hydroxy - 3 - oxo - 1 - cyclopentene - 1 - heptenoate ethyl 5 - oxo - 3 - (2 - tetrahydropyranyloxy) - 1 - cyclopentene - 1 - heptanoate, ethyl 3,5 - dioxo - 1 - cyclopentene - 1 - heptanoate, isopropyl 3 - hydroxy - 5 - oxo - 1- cyclopentene - 1 - heptanoate, 1 - iodo - 4 - cyclohexyl - 1 - trans - butene, 1 - iodo - 5- cyclohexyl - 1 - trans - pentene, 1 - iodo - 6- cyclohexyl - 1 - trans - hexene, 1 - iodo - 7- cyclohexyl - 1 - trans - heptene, 1 - iodo - 8- cyclohexyl - 1 - trans - octene, 1 - iodo - 5- phenyl - 1 - trans - pentene, 1 - iodo - 6 - phenyl- 1 - trans - hexene, 1 - iodo - 7 - phenyl - 1- trans - heptene, 1 - iodo 8 - phenyl - 1 - transoctene and 1 - iodo - 9 - phenyl - 1 - transnonene.  1 - Lithio - 1 - trans - octene and 1 - lithio- 3 - (1 - ethoxyethoxy) - trans - 1 - octene are obtained by reacting lithium powder in diethyl ether with solutions of 1-iodo-1-trans-octene and the 3 -(1 - ethoxyethoxy) - 1 - iodo - 1- trans-octene respectively. Pharmaceutical compositions contain the above novel compounds and pharmaceutically acceptable carriers or diluents. The compounds possess prostaglandin-like activities. Reference has been directed by the Comptroller to Specification 1,377,258 also Reference has been directed by the Comptroller to Specifications 1,314,292, 1,314,291, 1,282,661 1,198,071, 1,097,533, 1,097,157 and 1,040,544.
Patent GB-305484-A (GB)
Title: Process for the treatment of fish-bone bristles
IPC: A46D1/00
Filed: 1929-02-04
Abstract: 305,484. Gimmy & Diepold Ges. Feb. 4, 1928, [Convention date]. Coating-compositions. -To prevent absorption of moisture brush bristles are saturated with a varnish which does not become brittle, consisting of pinic acid resin, sylvic acid and colophony dissolved in methyl alcohol to which vesuvin is subsequently added. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of a varnish consisting of methyl alcohol mixed with ruby shellac. This subject-matter does not appear in the Specification as accepted.
Patent GB-1394502-A (GB)
Title: Magnetic brush assembly
IPC: G03G15/06
Filed: 1973-01-25
Abstract: 1394502 Developing electrostatic images XEROX CORP 25 Jan 1973 [26 Jan 1972 11 Jan 1973] 3789/73 Heading G2H A magnetic brush developing apparatus comprises a rotatable, electrically conductive sleeve 48, mounted at one end on a stationary shaft 58 by way of an electrically conductive bearing 60 and secured at the other end to a shaft which turns in a bearing, with electrical connections by which a conductive path can be established from a source of potential through the stationary shaft and bearing to the sleeve. Preferably the sleeve is rotated by an endless chain which engages a non- conductive sprocket on a rotatable shaft 52, and the sleeve surrounds a fixed bar magnet. The fixed bar magnet is supported by the stationary shaft 58, and a potential source is connected to the stationary shaft.
Patent GB-510617-A (GB)
Title: Improvements in high speed steel
IPC: C22C38/22
Filed: 1938-02-07
Abstract: 510,617. Alloys. PUTZ, P., and HILGER, A. Feb. 7, 1938, No. 3835. Convention date, Feb. 9, 1937. [Classes 72 and 82 (i)] High speed steel hardened by quenching from about 1,200-1,300‹C. with or without reheating to say 560-600‹C. contains iron with 1-2 per cent. of carbon, 0.5-7.5 per cent. of tungsten, 3-10 per cent. of chromium, 2.5-10 per cent. of vanadium. The tungsten may be omitted, in which case the lower limit of chromium is 4 per cent. and of vanadium 5 per cent. The following may also be present; one or more of titanium, tantalum, zirconium, uranium, beryllium in total amount of 0.1-3 per cent., up to 3 per cent. of molybdenum, up to 20 per cent. of cobalt.
Patent GB-396771-A (GB)
Title: Improvements in or relating to sliding windows
IPC: E05D13/00
Filed: 1932-02-09
Abstract: 396,771. Window sashes balanced by springs. PETERS & CO., Ltd., G. D., Windsor Works, and CHATTAWAY, H. A., 61, Hencroft Street, both in Slough. Feb. 9, 1932, No. 3884. [Class 20 (iii).] A spring-roller balancing device for vertically-sliding window sashes comprises, in combination, a casing 3 detachably secured to the top of the sash 2, a spindle 5 extending through the casing and revolubly mounted in bearings 7, flexible sash supporting members 12 mounted in the guide channels 11 and secured to the spindle and to the window frame, and a spring 8 surrounding the spindle and anchored thereto at 9 and to one of the bearings at 10. The sash supporting members are preferably steel tapes and their upper ends are gripped by blocks 14 which are secured to the channels 11. When the window is raised or lowered, the tapes wind or unwind from the shaft 5, the winding action being effected by the rotation of the shaft under the action of the spring 8 as the window is raised.
Patent GB-952417-A (GB)
Title: Combined transformer and variable choke
Inventor: HIRST SIDNEY
IPC: H01F29/10
Filed: 1962-02-01
Abstract: 952,417. Transformers. HIRST ELECTRONIC Ltd. Feb. 1, 1963 [Feb. 1, 1962; Feb. 27, 1962; Nov. 1, 1962], Nos. 3921/62, 7669/62 and 41407/62. Heading H1T. A transformer core forms with a further movable iron core element the magnetic circuit for a choke coil which is connected in series with the transformer secondary and surrounds a limb of the movable core but is fixed relative to the transformer. The choke core 17 (Fig. 1) which moves in guides (not shown) to prevent movement in a direction parallel to its yoke, has its limbs aligned with those of the transformer and these may number two, three (Fig. 1) or more the mating surfaces being in the form of notches 25 and projections 26 which reduce the high rate of change of choke reluctance after initial separation of the cores, by decreasing the effective air gap length. For three-phase applications, each of three transformer limbs may carry a primary 12 and a secondary 13 and the corresponding choke limb may carry one winding 18 which can be tapered or stepped and may be located by castellations 19. A singlephase winding may be formed on one limb as above, or may be distributed on a two-limb core (Fig. 3, not shown). The arrangement can provide an output range of 5-375 amps., as compared with 5-100 amps. if choke coils are fixed to the choke core. The first Provisional Specification describes welding rectifier applications in which a fan is used to cool the transformer assembly.
Patent GB-348113-A (GB)
Title: Improvements in the preparation of solder
IPC: B22F9/06
Filed: 1930-02-06
Abstract: 348,113. Shot-making. FRY, J. D., The Avenue, Amesbury, Wiltshire. Feb. 6, 1930, Nos. 4019 and 31912. [Class 9 (i).] Solder pellets of uniform size are produced by bringing small uniform amounts of molten solder into contact with a cooling medium or a cooling body. The solder may be melted by gas burners or electric heaters in a potprovidedwith a valved nozzle which may be variable in size or a number of interchangeable nozzles may be provided. The stream of molten solder from a nozzle may be arranged to drop into a receptacle containing water, oil, or glycerine. In one form the receptacle may contain oil floating on a body of water and may have an inverted flared funnel to collect and return to the stem thereof any drops of oil carried down into the water by the falling metal. A deflector may be provided to deflect the pellets to a particular part of the receptacle or to a supplementary container attached thereto. The pellets may be collected from the receptacle by hand or by an elevator. and may subsequently be dried by a stream of warm air.
Patent GB-553845-A (GB)
Title: Slow-operated electrical circuit
IPC: H03K17/288
Filed: 1942-03-27
Abstract: 553,845. Electricity supply; thermionic valve relay circuits. STANDARD TELEPHONES & CABLES, Ltd. March 27, 1942, No. 4074. Convention date, Oct. 23, 1940. [Class 38 (iv)] [Also in Group XL] Condenser arrangements; switching control.- An electrical circuit is rendered operable after a time interval, e.g. of the order of minutes, by the slow charging of a condenser c by alternate short impulses from a saturable transformer 2 producing a peaky wave having a slow build up and a rapid rate of decay. The primary winding is connected through an inductance 3 and resistance 4 to an A.C. source 1 of usual frequency and the secondary is connected in series with the condenser and the unidirectional main gap of a cold cathode gas filled discharge tube 7 through a resistance 8. An auxiliary gap is connected through a resistance 6 in series with a portion of the secondary winding, which is shunted by a copper-oxide rectifier 5 so that the tube is responsive only to alternate half waves and the voltage range over which the tube 7 is rendered conductive is increased. The peaky secondary voltage breaks down the auxiliary gap late in the half cycle whereupon a short charging impulse passes through the main gap to the condenser C. In one application, a circuit 10, intended to indicate when a relay 11 does not operate within a time determined by the aforesaid circuit, an enabling relay 15 closes, when the time has elapsed and the relay 11 has not operated, due to the discharging of the condenser C over the auxiliary gap of a second gas filled, cold cathode tube 13, whereupon a battery 14 passes current through the main gap and the relay 15. When the relay 11 operates a relay 17 short-circuits the condenser and resets the apparatus.
Patent GB-1496796-A (GB)
Title: Spring brake actuators
IPC: B60T17/08
Filed: 1975-01-30
Abstract: 1496796 Spring brake actuators CLAYTON DEWANDRE CO Ltd 16 Jan 1976 [30 Jan 1975] 4107/75 Heading F1D A spring brake actuator comprises separate spring and return cylinders S, H, which are linked to a brake operating rod 18 by a pivoted lever 13. Fluid-pressure supplied through a port 10 normally holds a piston 11 to the left and when the brake is to be applied pressure is released in a controlled manner so that a spring 4 expands and operates the brake. The spring may be safely released from a member 6 and thrust plates 5, 5a by unscrewing a bolt 8.
Patent GB-230969-A (GB)
Title: Improvements relating to straining, securing, and severing devices for wire bale and other package ties
IPC: B65B13/28
Filed: 1924-02-18
Abstract: 230,969. Finlay, A. H. Feb. 18, 1924. IG'ire strainers.-One end of the wire is placed in a hole 11<a> in a removable member 11 and the other end, after the wire has been passed through the slotted pinion 3, around the bale, through the pinion again and under the neither 9, is clamped between an anvil 6a, carried by an arm 6, and the end of a curved arm 7. The arms are pivoted to the tensioning lever 4, the arm 7 being pivoted at the pivot 4a of the lever. The gear segment 2 that actuates the slotted pinion is operated by the engagement of the lever 5 with a roller 2a carried by the gear segment. The notcher 9, removably carried in a bracket 9a, notches the spare bight of the wire during the twisting operation and the wire is severed by applying a little more tension thereto by further actuation of the tensioning lever. The operating members are carried by a one-piece frame 1, and the gear segment is returned to normal position by a spring 5a.
Patent GB-777948-A (GB)
Title: Improvements in or relating to combustion equipment for gas turbine engines
Inventor: JOHNSON FRANCIS MURRAY
IPC: F23R3/04
Filed: 1954-02-12
Abstract: 777,948. Generating combustion products under pressure. ROLLS-ROYCE, Ltd. Feb. 11, 1955 [Feb. 12, 1954], No. 4274/54. Class 51 (1). In combustion equipment for a gas turbine comprising a flame tube disposed within an outer air casing, a conduit is provided comprising an outlet pipe which leads off from and a return pipe which returns to the primary combustion zone of the flame tube. Means which include an ejector operated by a flow of air supplied to the combustion equipment are provided for creating a region of low pressure at the outlet end of the outlet pipe to cause in operation a flow of gas therethrough, means also being provided for supplying fuel to the outlet pipe upstream of its outlet to mix with the gases in the pipe. The flame tube 11 in Fig. 1 is disposed within an outer air casing 10 and is provided with a tubular extension 15 at its upstream end, a tubular member 18 being disposed coaxially within the extension. A perforated flange 20 is disposed between the member 18 and the extension 15. A bell-shaped baffle member 24 formed integrally with a radially-extending strut 29 is so disposed that its lip 25 is disposed between the upstream ends of the member 18 and the extension 15. Combustion air passing through the annular space 26 causes an ejector effect within the lip 25 of the bell, thus promoting a flow of gas from the inlet end 11a of the flame tube through the member 18. Fuel is injected into this gas flow by means of the injector 30, and the mixture of fuel and gas reverses and flows through the annular passage 21 between the member 18 and the extension 15. The mixture of fuel, gas and air enters the flame tube through the apertures in the flange 20. Webs 27, 28 are provided to position the extension 15 and the tubular member 18 with respect to the bellshaped member. Further air enters the flame tube through inlets 36, 37. The invention is applicable also to combustion equipment comprising an annular flame tube disposed within an annular air casing as well as to the tubular flame tube type equipment shown in Fig. 1. Specifications 744,593 and 744,657 are referred to.
Patent GB-1443081-A (GB)
Title: Mine roof supports
IPC: E21D23/04
Filed: 1974-01-30
Abstract: 1443081 Mine roof supports BECORIT GRUBENAUSBAU GmbH 30 Jan 1974 [27 Feb 1973] 04306/74 Heading E1P In a mine roof support comprising at least one prop 10, a base plate 1 and a canopy 9 interconnected by a shield assembly 3, 5 having hinge axes 2, 4, 7, 8 disposed parallel to the longitudinal direction of the longwall face, the shield assembly is movable laterally to the base plate as about hinges 11, 12. The hinges 11, 12 are formed as concentrically arranged tubular sections 13, 14 or 15, 16 which are located along the longitudinal axis of the support, the tubular section 14 accommodating the advancing ram 17. The canopy is adapted to pivot about a pin joints 18, 21 and incorporates a pre-tensioned locking device 20. Alignment jacks or springs are provided for the props, see Fig. 3 (not shown).
Patent GB-442254-A (GB)
Title: Improvements in or relating to composite wall members and method of making the same, and to wall constructions made therefrom
IPC: E04B2/78
Filed: 1935-02-11
Abstract: 442,254. Walls; slabs. KOTRBATY, G. F., 17, Battery Place, New York, U.S.A. Feb. 11, 1935, No. 4334. [Classes 20 (iv) and 87 (i)] A wall slab comprises panel surfacings 1 connected by a reinforced cementitious layer 5 which is disposed between the surfacings and terminates inwardly of the edges thereof to form an edge channel at opposite edges of the slab for the reception of a metal channel 6 which is secured to the slab at the outside edges thereof. The panel surfacings 1 may consist of gypsum or other plastic material, asbestos board, oil cloth, linoleum, cork, felt, wallpaper, or the material known under the Registered Trade Mark " Bakelite." When the panel surfacing is of gypsum, it may be faced with asbestos board, linoleum, oil cloth, sheet cork, or wallpaper. As shown in Fig. 2, the surfacings 1 consist of paper-covered gypsum slabs, and the reinforcement for the cementitious layer 5 may consist either of wire rods 4, or of wire rods 11 threaded through ridged metal members 10 as shown in Fig. 5. If desired, the reinforcement may consist of two interengaging sets of ridged metal members 10. The channel edging member 6 is adapted to fit between the two slabs 1, and the lateral flanges 8 thereof are compressed on to the slabs and may have serrated edges for engaging the same. The edging members 6 may be of steel, aluminium, copper or light alloys. The wall slabs are assembled by means of anchoring devices 15, Fig. 3, which are adapted to engage at the top and bottom of a slab, and are provided with a rib portion 16, adapted to enter the edge channel 6, and flanges 17 which are nailed or screwed to the floor or ceiling as shown in Fig. 2. Each rib portion 16 engages the edge channel 6 of two abutting wall slabs. The edge channels 6 of adjacent slabs may be so shaped as to provide apertures of cross-shape as shown at 32, Fig. 6, or of rectangular shape 40 as shown in Fig. 7, and such apertures may be fitted with longitudinal tubular stiffeners adapted to engage between the top and bottom anchors 15. The channels 6 may, alternatively, be formed with central keyways 50, Fig. 8, adapted to be engaged by spring keys 51 comprising opposed cylinders and an intermediate expansible connecting web as described in Specification 350,467. The members received between the abutting channels 6 may be stiffeners or keys, or they may serve to stiffen and key the slabs.
Patent GB-723021-A (GB)
Title: Improvements in or relating to corrosion inhibiting compositions
IPC: C10M169/04
Filed: 1952-02-19
Abstract: Lubricating compositions comprise a major proportion of a synthetic lubricating oil and a minor proportion of lecithin, together with a partial fatty acid ester of a polyhydric aliphatic alcohol, an oil-soluble petroleum sulphonate, an alkyl cresol and a natural fat. Partial esters referred to are pentaerythritol mono-oleate, sorbitan mono-oleate, sorbitan mono-stearate and glycerol mono- and di-oleates.  The sulphonate may be sodium petroleum sulphonate.  The alkyl cresol specified is 2.6 ditertiarybutyl paracresol, and the natural fat may be lanolin or degras.  Synthetic oils referred to are polyglycol oils, alkyl ethers of polyglycols and esters of mono- and poly-basic acids such as dialkyl esters of dicarboxylic aliphatic acids, for example, di-2-ethylhexyl sebacate.