baber/WOPTO huggingface dataset:
Patent GB-1390377-A (GB)
Title: Looms
IPC: D03D51/00
Filed: 1972-04-11
Abstract: 1390377 Looms; stopping and reversing NUOVO PIGNONE SpA 11 April 1972 [7 May 1971] 16709/72 Heading DIE A travelling wave shedding loom is driven in reverse by an auxiliary motor and normally driven by a motor 1 which drives a shaft 4 by way of an electromagnetic clutch 5, 8, the shaft 4 driving the sley crankshaft 19, the shuttle propelling mechanism by way of gears 17, 18 and the shedding motion, let-off and take up motions by way of a shaft 24 driven in the forward direction by bevel wheels 23, 26. Upon weft fault the clutch 5, 8 is disconnected and a brake 10, 11 applied that also connects the auxiliary motor 14 to the shaft 4 by way of worm gearing 12. A handle 31 is then operated to move a dog clutch 47 to disconnect the bevel wheel 26 from the shaft 24 and to connect thereto a bevel wheel 25 that drives the shaft 24 in the reverse direction. A microswitch cam arrangement then ensures that when the starter button is operated the loom operates revolution by revolution so that the sley and shuttle driving mechanisms are operated in the forward direction and the shedding, letoff and take-up are operated in reverse allows the defective picks to be removed.
Patent GB-1515369-A (GB)
Title: Conversion of a rotary motion into an intermittent rotary motion
IPC: B65B65/02
Filed: 1975-04-23
Abstract: 1515369 Gearing for conveying rotary motion; cams; variable-throw cranks; linkwork BRUNDLER AG MASCHINENFABRIK 23 April 1975 [25 April 1974] 16753/75 Headings F2Q and F2K In a variable-stroke intermittent drive mechanism 2, Fig. 1, which may be used to drive an apparatus 3 for conveying and dividing into equal portions a bulk supply of solid, plastic or liquid material, which may include foodstuffs such as sausages, the mechanism comprises an input shaft 13 driven in uniform constant rotation carrying a pinion 14 meshed with a toothed wheel 15, Fig. 2, which in turn carries a crank-pin 16, the motion of which is imparted to an arm 23 of a toothed sector 24 by means of a hinged assembly of three links 17, 18, 19 which are pivoted together upon a common joint pin 20, the link 19 forming part of a means for regulating the angular extent of oscillating travel of the toothed sector 24, and the resulting motion is transmitted to the conveyer worm 4 through a unidirectional ratchet and freewheel mechanism 36. The link 19 is pivoted as a radius arm about a pin 26 of preset location, which can be set manually by means of a positioning mechanism 30 shown in Fig. 3, in which shaft 33 rotates a worm 32 engaged with a toothed sector 29, thereby setting the position of pin 26 carried by an arm 28, relatively to a fixed pivot 27. This adjustment mechanism governs the extent of angular excursions of the toothed sector 24, thereby governing the amount of material contained in each separate portion emerging from the conveyer. A second gear train, also driven by shaft 13, comprises toothed wheels 7, 8, chain 9 and a clutch 10 actuated by a cam roller 39 following an undulating surface on a face cam 38, the cam 38 being integral with the toothed wheel 15, and the intermittent rotary motion thereby transmitted to a second output shaft 11 may be used for cutting the continuous stream of material into separate portions, or for providing a twist to the casing for separating portions of material contained within a tube, e.g. for manufacture of sausages. An electromagnetic clutch 37 may be used to disengage the intermittent drive from the toothed sector 24, and the conveyer worm 4 may then be driven in continuous rotation by shaft 13, through a chain drive means (not shown).
Patent GB-529800-A (GB)
Title: Improvements in and relating to hydraulic valves for controlling the hydraulic traverse of machine tools
IPC: B24B47/06
Filed: 1939-06-08
Abstract: 529,800. Hydraulic machines. TOWLER, J. M., and TOWLER, F. H. June 8, 1939, No. 16761. [Class 69 (ii)] A hydraulic valve for controlling the hydraulic traverse of machine tools of honing, grinding, shaping, or planing machines is constructed as a, sliding valve 1 Fig. 1, which is set so as alternately to connect the ends of the cylinder 3 to a pressure pipe 4 and outlet pipes 8, 9 in connection with a supply pump or other souce of hydraulic pressure, and the valve 1 is held alternately in its extreme positions by suction means. As shown in Fig. 1, the valve is fitted with cylindrical members 17, 18 adapted to be received in recesses 15, 16 formed at opposite ends of the bore in which the valve piston reciprocates, and flexible diaphragms 19, 20 close on the sides of the recesses 15, 16 which are immersed in liquid in chambers 21, 22 and owing to the displacement of the liquid in the recesses causing a vacuum the valve is held in position by the fluid pressure on the diaphragms. The valve rod 14 is fitted with tappets 12, which can be set at a predetermined distance apart to vary the stroke of the piston 7, and springs 13 are arranged in front of the tappets so that an abutment 10 on the piston rod 11 first compresses the spring 13 before the rod 14 is acted upon with sufficient pressure to break the vacuum and permit of movement of the rod 14. When movement does take place it has a fly-over action owing to the release of the energy stored in the spring 13. To permit of hand-actuation by a lever 26, the vacuum holding the rod 14 can be broken by opening a valve 25 which connects the recesses 15, 16, and thus equalizes the pressure in the recesses. This permits of inching the machine tool. In modifications the members 17, 18 may be arranged near together on one side of the valve as shown in Fig. 5, and the diaphragms may be dispensed with and the members fit closely in the recesses 15, 16. These recesses lead to passages 51 with non-return valves to permit of displacement of liquids so as to produce a vacuum. The vacuum is broken by an auxiliary valve 52 operated by an abutment 10. Two abutments 10 are employed and a common spring 13 serves two tappets 12. The hand-operated means for rendering the suction devices inoperative also may serve to break the current supply to the motor driving the hydraulic pump. In further modifications (a) the vacuum may be broken by a mechanical striker carried by the abutment 10 which forces the edges 19, 20 away from the recesses 15, 16 ; (b) the recesses 15, 16, Fig. 7 are formed so as to receive between them a member 57 formed with members 17, 18 with diaphragms 19, 20.
Patent GB-819456-A (GB)
Title: Steering and horizon indicating instrument for aircraft
IPC: G01C23/00
Filed: 1957-05-27
Abstract: 819,456. Aircraft instruments. COLLINS RADIO CO. May 27, 1957 [Oct. 23, 1956], No. 16763/57. Class 4. [Also in Group XL(c)] An aircraft instrument comprises a front supporting member 10 with a circular opening, a disc 18 concentric with the opening, marked with a horizon bar 19 on one diameter and a reference mark 20 on a perpendicular diameter, and rotated in accordance with the angle of roll, a pitch indicator 22 mounted in front of the disc on a pivot arm 32 and displaced vertically in accordance with the angle of pitch, a guide-slope pointer 12 displaceable vertically, and a steering indicator needle 23 mounted in front of the disc and guide slope pointer, pivoted at the bottom of the supporting member 10, and moved in response to a steering command signal. The horizon bar and pitch indicator are actuated through servo-loops by a vertical gyro 55, the mechanical transmission to the pitch indicator arm 20 being through a cam 49 and follower 47 shaped so that the deflection of indicator 22 is reduced in the higher pitch ranges. The guide slope pointer 12 is actuated by a guide slope receiver 50 and a d.c. movement 17. If the pilot " flies " the indicator 22 onto the pointer 12, the guide-slope path is approached asymptotically. A knob 14 actuates a device 13 to transmit a pitch trim signal to the steering computer 66. Pitch reference marks 35, 37 ard provided on a fixed mask 11, and roll reference marks 33, 38 on a fixed mask 34. The steering needle 23 is operated through a d.c. movement 21 by the steering computer 66, which has inputs from a stabilized magnetic compass 76, the vertical gyro 55, a heading selector 78, a navigation receiver 59, and the pitch trim device 13, the needle 23 being operated to indicate the sense and extent which the aircraft must be banked to maintain course or follow a radio flight path. A knob 15 operates a switch 34 controlling the steering computer to select I.L.S. operation or selected heading operation. Flags 54, 58, 62 and 64 monitor the various electrical components.
Patent GB-372127-A (GB)
Title: Improvements in and relating to light projectors
IPC: F21S10/00
Filed: 1931-06-09
Abstract: 372,127. Vehicle &c. lamps. SILVA, F., 76, Jackson Street, PEREIRA, A. and JANSSON, O. W., 409, Drumm Street, both in San Francisco, U.S.A. June 9, 1931, No. 16823. [Classes 75 (ii) and 75 (iv).] Mounting reflectors on lamp casings.-In a light projector for vehicles, ships. &c., comprising a tubular body having a lens at one end and a reflector together with a lamp adjacent its other end, the lens is spaced from the end of the tubular body to allow the circulation of air between the lens and main body. The tubular body I has an annular flange 3 and shoulder 4, and the lens 7 is spaced from the end of the body by means of an annular cushion 8 of insulating material. A ring 9 retains the lens in place. Ventilating holes 6 in the flange 3 give air circulation. The lamp bulb 17 and the reflector 16, which is spaced from the sides, are mounted on a screw thread 14 carried by a core 12 mounted on a sleeve 11, which slides within the body, the screw thread giving fine adjustment. The projector is pivoted horizontally and vertically at 21 and 23 respectively. The inner surface of the body 1 is made reflecting.
Patent GB-564285-A (GB)
Title: Improvements relating to oil or other liquid filters or cleaners
IPC: B01D35/14
Filed: 1942-11-27
Abstract: 564,285. Filters. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Nov. 27, 1942, No. 16907. Divided out of 664,089. [Class 46] [Also in Groups XXV and XXVI] A filter for liquids comprises a tubular container housing at least one annular filter element, and a head which has an outlet passage, formed partly in a tubular member integral with the head and projecting into the filter element, and an inlet branch surrounding the tubular member. Further, means are provided for retaining the liquid in the other parts of the system connected to the inlet and outlet branches, and for preventing spilling during dismantling, said means consisting of two independently operating valves, one for each branch. In the construction shown, the filter comprises a container 1 housing the filtering element 17 and formed with an external square screwthread 3 to which is screwed the head 2. The head has an opening 5 which receives the neck 14 of a head cover 7, the head and cover being secured together by bolts 27. These bolts also serve to hold a gland retainer 25, the.flange of which enters the channel of a gland ring 23 located fairly loosely between the cover and head. The retainer has radial passages which enable the fluid to pass into the channel and thereby serve to expand the gland ring as described in Specification 564,089. The fluid to be filtered enters an inlet branch 9 of the cover 5, passes through an annular space 16 surrounding a tubular member 12, and thence into container 1 via a spring-controlled non- return valve 29 seated on the neck 14. After passing through the filter element the fluid enters the tubular member 12 which is normally closed by a spring-controlled non-return valve 33 and thence through a chamber 10 to the outlet branch 8. The non-return valves prevent escape of fluid when the filter is being dismantled. The inlet and outlet chambers 15, 10 are fitted with air vent valves 38, 39. As shown in Fig. 3, the head and head cover are held in their operative position by a spring-controlled pin 49 which is depressed by its spring 53 to engage the screw-thread of the containers. Disengagement is effected by lifting the pin and giving it a half turn, such movement serving to bring a cross-pin 54 out of alignment with a slot 55 in the head cover, whereby pin 49 is retained in its raised position.
Patent GB-763285-A (GB)
Title: Improvements in anti-theft switches for motor vehicles
Inventor: HOLT JOHN HAROLD
IPC: B60R25/10
Filed: 1954-06-10
Abstract: 763,285. Secret contact - combination switches. ROTARY SWITCHES, Ltd. June 7, 1955 [June 10, 1954], No. 17018/54. Class 38(5). [Also in Group XXXVI] An anti-theft switch for motor vehicles comprises a cylindrical insulating body containing a metal. spindle carrying a pair of metal knobs, one of which is keyed to the spindle and the other being loosely mounted thereon, a fixed contact ring on the body, spring detents passing through one knob and engaging one of a plurality of notches on the other knob and on the contact ring, the ignition circuit through the switch being completed when certain notches are engaged. The contact ring C is carried on the body A and has an insulating insert c into which a rod d is screwed, the end of rod d forming one of ring of notches engaged by one of a pair of spring-pressed balls d<SP>2</SP> in knob D<SP>1</SP>. The other ball of the pair' engages the plane surface of the knob D which is keyed to the spindle B. The knob D has a ring of notches d<SP>5</SP> at a different radius, one being formed in an insulating insert d<SP>6</SP>, these notches being engaged by a further spring ball which is insulated from knob D<SP>1</SP>. A rod d<SP>1</SP> is connected to the ring C, and a rod g' is connected to the spindle B by a contact g<SP>2</SP>. Rod d is connected to the ignition coil, rod d' to the horn circuit and rod g<SP>1</SP> to the contact-breaker, so that with the parts in the positions shown, the ignition circuit is completed between d and g<SP>1</SP>, and the horn circuit between d<SP>1 </SP>and g<SP>1</SP> is broken. Movement of knob D makes both of these circuits 'and movement of knob D<SP>1</SP> or both knobs (by the same or different amounts) breaks the ignition circuit and makes the horn circuia. One notch d<SP>5</SP> in the knob D and one notch in ring C are enlarged so as to provide datum positions, lead-outs a<SP>3</SP> being provided to allow the balls to ride out in one direction only. Specification 724,006 is referred to.
Patent GB-695759-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/54
Filed: 1951-07-18
Abstract: 695.759 Type-bar-making machines. MERGENTHALER LINOTYPE CO. July 18, 1951 [July 25, 1950], No. 17036/51. Class 100(iii) Moulds.-A typographical slug casting machine of the kind known under the Registered Trade Mark "Linotype" has a periodically rotatable mould wheel or disc operated by driving mechanism through gearing, and the driving mechanism comprises a rotary cam in driving engagement with a rocker element provided with an arcuate gear segment, the gearing including a pinion which is in constant mesh with the gear segment and which drives the mould wheel or disc through constant-mesh gearing. A cam groove 12 in the mould turning wheel 11 causes the oscillation of a gear segment 15, which imparts rotation to the mould wheel 1 through a bevel pinion 16 on shaft 18, gear 19, and gear 23. The groove 12 also acts through a rod 24 to engage the gear 23 during alternate strokes of the segment 15 with the gear 19 and with a further gear 22 on a shaft carrying a pinion 20 engaging the gear 19, so that on each stroke of th'e segment 15, the mould wheel is rotated in the same direction. Since the gear ratio between gear 19 and pinion 20 is 3: 1 and the gears 19, 22 are the same size, the mould wheel is rotated three times as far when the gears 23, 22 are in engagement, whereby the mould wheel is rotated alternately through a quarter turn and a three-quarter turn.
Patent GB-1388554-A (GB)
Title: Apparatus for removing solids from a liquid
IPC: C02F3/12
Filed: 1971-05-25
Abstract: 1388554 Moving band filter SWALESEDGE Ltd 25 May 1972 [25 May 1971] 17057/71 Heading B1D An endless filter 2 has a feed 12 for filterable liquids with a blower 18 which partially dries and partially reduces the capillary attraction of the liquid in the meshes of the conveyer. The filtered solids are removed by brush 26 though air may be circulated at 24 to help lift the solids from the filter.
Patent GB-439414-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/52
Filed: 1935-06-13
Abstract: 439,414. Cathode - ray tubes. FERNSEH AKT.- GES., Goerzallee, Zehlendorf, Berlin. June 13, 1935, No. 17058. Convention date, June 13, 1934. [Class 39 (i)] In a high-vacuum cathoderay tube for television or like purposes in which an electrostatic electron lens comprising apertured diaphragms is employed to produce an image of an aperture in a bombarded electrode on the fluorescent screen, a second electron lens also comprising apertured diaphragms is provided to concentrate the whole of the electrons emerging through the aperture in the bombarded electrode upon the aperture of the first-mentioned electron lens. In one form the auxiliary lens is placed before the principal lens and near the cathode. The first electrode of the auxiliary lens is preferably the first electrode at a positive potential with respect to the cathode. The principal lens acts as a diaphragm shielding the deflecting plates from the electron beam. In a modification, a preliminary lens 9 produces a minimum cross-section of the beam at the first diaphragm 101 of the auxiliary lens 1. Modulation potentials on the plates 10, 11 deflect the beam and vary the amount cut-off by the diaphragm 101. The auxiliary lens reduces the crosssection of the beam in the principal lens 6 so that the whole aperture is not employed, undesirable additional modulation at the lens 6 being tlius avoided. One of the apertures 101, 301 may be round, rectangular or hexagonal for reproduction as a picture point on the screen. The distances between the electrodes of the auxiliary lens as well as the apertures therein should be of the same order as the minimum beam cross-section.
Patent GB-1443267-A (GB)
Title: Cross-bottom bag
IPC: B65D33/22
Filed: 1974-04-18
Abstract: 1443267 Bags WINDMOLLER & HOLSCHER 18 April 1974 [10 May 1973] 17090/74 Heading B8K A cross bottom bag has a cover sheet 14 secured to corner tucks 3, 4 and bottom side fold portions 7, 8 by the provision of a heat meltable material, there being strips 12, 13, 15 of the same heat meltable material provided on both the bag and the cover strips. The bag may have a bottom valve. An equivalent of the hot melt material would be bitumen or wax.
Patent GB-1119611-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: BROWN KENNETH ROBSON
IPC: H02K3/487
Filed: 1966-04-20
Abstract: 1,119,611. Making stator and rotor cores. FERRANTI Ltd. 19 April, 1967 [20 April, 1966], No. 17213/66. Heading B3A. [Also in Division H2] The width of the mouth of a winding slot in the rotor or stator core of a dynamo-electric machine is reduced by a method which includes inserting into the slot in the portion between its mouth and the winding 16 a magnetic slot-closing member 14 of arcuate cross-section such as to make good magnetic contact with the core at said portion, and removing the crown of the member to form a mouth of the required width. As shown applied to a non- salient pole rotor laminated core 11, a rigid insulating strip 17 is added to prevent the member rotating, and the removal is by grinding to the line 18. The method is also applicable to winding slots in salient-pole machines, and it is envisaged that only the crown and none of the core may be removed
Patent GB-991031-A (GB)
Title: A maleic compound and the alkali metal and alkaline earth metal salts thereof
IPC: B01J19/06
Filed: 1962-05-04
Abstract: Polymaleic acid of the general formula <FORM:0991031/C3/1> or <FORM:0991031/C3/2> and the alkali metal and alkaline earth metal including magnesium salts thereof are prepared by hydrolysing polymaleimide or an N-substituted polymaleimide.  The hydrolysis may be carried out in an acid or alkaline medium. The above processes produce polymaleic acid having an even number of identical groups, but polyacids containing an odd number, e.g. <FORM:0991031/C3/3> can be obtained by subjecting polymaleic acid as described above to a vigorous mechanical treatment, e.g. flowing along steep gradients, or to the action of radiations, e.g. alpha, beta or gamma radiations. The polyacids and salts can be used as iron exchange resins, thickening agents, flotation agents, suspension stabilizers, luminescent products, modifying agents for photographic emulsions and dehydrating agents.
Patent GB-113290-A (GB)
Title: Improvements in Heating the Carburetters of Internal Combustion Engines.
Inventor: MEADOWS WILLIAM ALFRED
IPC: F02M31/12
Filed: 1917-05-01
Abstract: 113,290. Meadows, W. A. May 1, 1917. Drawings to Specification. Heating by electricity.-The moving chamber of a spray carburettor is heated to facilitate starting by clipping around it a damp-proof box or jacket containing an electrically-heated composition consisting of china-clay, hydraulic lime, feldspar, and asbestos fibre in which are embedded coils of nichrome wire, wrapped upon a strip of mica. The Provisional Specification gives the proportions of the constituents of the composition as being one part hydraulic lime, two parts china clay, one part pulverized feldspar, and three parts asbestos fibre.
Patent GB-763744-A (GB)
Title: Method of making a photo-conductive sheet for a radiation amplifier
IPC: H05B33/12
Filed: 1954-06-11
Abstract: 763,744. Photo-conductors. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1954 [June 17, 1953], No. 17287/54. Class 37. [Also in Group XL (a)] A photo-conductive sheet for a radiation amplifier, is produced by embedding a plurality of elongated photo-conductive particles in a film of sticky substance, the longitudinal axes of the particles being normal to the plane of the film. In Fig. 1, the sticky substance 3, such as cellulose acetate or wax, is applied to a baseplate 1, and a quantity of photo-conductive particles such as cadmium sulphide is spread over a plate 2. A high potential is applied between plates 1 and 2 so that the particles are oriented into alignment with the electric field, and propelled towards plate 1 to become embedded in layer 3. A layer 9 of an insulating liquid binder such as wax or plastic, is applied to layer 3, as shown in Fig. 3. Layers 3 and 9 are removed as an assembly, and the surface may be lightly ground to provide a smooth surface containing the exposed ends of the particles. This assembly may then form the photo-conductive layer 10 (Fig. 4) of a radiation amplifier comprising electro-luminescent layer 13, transparent metallic electrodes 12 and 14, and glass sheets 11 and 15. When potential is applied between electrodes 12 and 14, the electric field across any part of the electroluminescent layer 13 is proportional to conductivity of the corresponding part of layer 10, and hence an image projected on layer 10 appears in intensified form on layer 13, as described, for example, in Specification 749,798, [Group XL (a)]. The luminescent layer may be a mixture of zinc oxide and zinc sulphide activated by copper. The photo-conductive particles may be produced by evaporation of metallic cadmium in an atmosphere of hydrogen sulphide and hydrogen. In an alternative method of producing the photo-conductive layer, the crystals are suspended on a fine mesh screen placed above the base-plate with the sticky layer, the whole being suspended in an insulating liquid. Alternatively the screen may be placed on the base-plate, or may be left in place in the finished sheet. This method ensures that the individual crystals are spaced apart and thus eliminates any conductivity along the film.