baber/WOPTO huggingface dataset:
Patent GB-339297-A (GB)
Title: Improvements in or relating to paper or like sheet feeding and folding machines
IPC: B65H45/12
Filed: 1929-07-05
Abstract: 339,297. Camco (Machinery), Ltd., and Dawson, J. C. July 5, 1929. Folding paper.-In a paperfolding machine employing both oscillating blade and buckling folders, the sheets are fed in timed relation to the knifefolding operation by mechanism which can be rendered inoperative when the knife folders are not in use. The sheets are placed on a lay table 20 against a fixed side gauge 21 and movable front stops 29 which act in conjunction with dropping rollers 27 so that each sheet is forwarded to a roller conveying- table 19 at definite intervals. The sheet passes to buckling folders 11 and oscillating-blade folders 15, 16 which impart consecutive rightangle folds to the sheet, the blades 15, 16 being operated from a cam-shaft 17 through levers 15<b>, 16b, respectively. A cam 37 adjustably mounted on the shaft 17 operates a shaft 24, to which are fixed the front stops 29 and arms 23 carrying the rollers 27, through a bell-crank lever 35 and extension 23b of the arms 23 pivotally connected to the ends of a link 31 by means of slotted brackets 30, 36 and lock-nuts 32, 36a respectively. By varying the setting of the cam 37, the timing of the sheet feed can be varied relatively to the operation of the blades 15, 16. If the feeding devices 27, 29 are not required, as for example. when only the buckling folders are in use, the link 31 is released from the bracket 30 and a stop 31a on the link 31 caused to engage the face 40<a> of a fixed stop 40 so as to hold the followerroller 35<a> on the lever 35 free of the cam 37. The dropping rollers 27 are then held slightly out of contact with their co-operating feed rollers 22 by set-screws 42 engaging the bracket 33. According to the Provisional Specification, the mechanism operating the dropping-rollers may be automatically rendered inoperative when the knife folders are not in use.
Patent GB-1253894-A (GB)
Title: A branch terminal
IPC: H01R9/03
Filed: 1969-04-23
Abstract: 1,253,894. Electric couplings. W. PFISTERER. 23 April, 1969 [23 April, 1968], No. 20732/69. Heading H2E. A device for making tap-off connections to the insulated cores 11 of an electric cable comprises contact members 12 having teeth 17, mounted in insulating members 7, 8 which are seated in and may be glued to U-shaped members 1, 2 fastened together by means of guiding screws 22. Clamping screws 15 engaging - contact members 12 clamp the ends of tap-off branch conductors (not shown) which may be connected beforehand, and, the tap-off connection being established when the parts are assembled, by virtue of the teeth 17 which -extend substantially in the direction of fastening screws 22 penetrating to the wires of the insulated cores. Insulating projections 9, 10, integral with members 7, 8 respectively serve to centre the device on the cable and also reinforce the insulation between cores; insulating member 19 (with projections 20, Fig. 3, not shown) maintains the height of the connection and the contour of the crosssection. In an embodiment suitable for a threecore cable (Fig. 4, not shown) the third contact member has teeth shaped differently, and the member 19 takes the form of two separate members.
Patent GB-878776-A (GB)
Title: Improvements in or relating to low stiffness spring units
Inventor: PLASTOW RONALD JAMES
IPC: F16F3/02
Filed: 1958-06-28
Abstract: 878,776. Resilient mountings. ROSE BROS. (GAINSBOROUGH) Ltd. June 25, 1959 [June 28, 1958], No. 20781/58. Class 108(3). In a low stiffness spring unit of the type described in Specification 838,612 in which a frame 17 Fig. 1 is yieldingly supported from a fixed base 22 through normally flat leaf springs 23, 24 constrained in an endwise buckled condition, the springs are interleaved in a central clamp 27 so that the leaves of each set are spaced apart. The apparatus 39 to be yieldingly supported is coupled to the frame 17 through additional leaf springs 14, 18 arranged to afford low stiffness in two horizontal directions at right angles. The leaf springs 14 extend horizontally between end members 13 supporting a central member 12, the end members 13 being in turn supported by vertically extending leaf springs 18 attached to lugs 26 at the end of the frame 17. Abutment surfaces 19, 21 engaging the leaf springs 14, 18 vary the spring characteristics. The operative height of the mounting may be adjusted for different weights of apparatus by auxiliary supporting springs 34 engaging angle pieces 33 attached to the frame 17 and supported on a crosshead 29, the height of which is adjustable by a screw 31, rotated by a knarled knob 32.
Patent GB-814408-A (GB)
Title: Step and repeat mechanism to generate increments of micro-inch accuracy over any distance
IPC: F16H27/02
Filed: 1956-07-05
Abstract: 814,408. Ratchet mechanism. BONAMINI, N. April 4, 1957 [July 5, 1956], No. 20790/56. Class 80 (3). (Also in Group XXII] Accurate step-by-step movements, relatively to a straight or curved bar 4, of a part such as a, machine tool carriage (not shown) are obtained by reciprocating one of a pair of taper plates 1, 2, the plates being held between a pair of spring collets A, B which are alternately clamped to the bar by means not shown, in sequence with the reciprocation, transverse to the bar axis, of the taper plate 1. The parts are mounted in a case 3 slidable along the length of the bar 4, the collets and taper plates being held in contact by a spring 5 or by a hydraulic bellows or the like. The plate 2 and collet B are fixed to the case 3. The collet A may be secured to the carriage of a machine tool and the bar 4 be fixed to the body thereof, the taper plate 1 then reciprocating between fixed stops on the machine carriage. At the commencement of a cycle the collet B is clamped to the bar 4 and the plate 1 makes a forward stroke to cause a small axial displacement of the collet A. The collet A is then clamped to the bar 4 and the collet B released so that as the plate 1 makes a return stroke the spring 5 displaces the case 3, collet B and plate 2 to follow up the displacement of the collet A. The collet A is then released and a fresh cycle may commence. In a modification the collet A is fixed and a step-by-step movement of the bar 4 is produced. In another modification the taper plates are mounted so that they do not bear directly against the collets. The spring collets A, B may be replaced by hinged clamps or other suitable components. It is stated that both collets may be opened to allow relative traversing, independent of the step-by-step mechanism, between the bar and collets. It is also stated that the extent of each stepped movement may be varied by changing the taper plates or by varying the stroke of reciprocation.
Patent GB-424568-A (GB)
Title: Improvements in or relating to discs for container closures, gaskets, clutch-facings, and the like
IPC: B65D53/04
Filed: 1933-07-24
Abstract: A free flowing and heat hardenable composition for use in container closures, gaskets, and clutch facings comprises comminuted cork, a plasticizer and a binder composed of substantially equal amounts of dehydrated phenol aldehyde and urea aldehyde condensation products. Preferred plasticizers are glycerol, diethyleneglycol and triethyleneglycol.  A protein such as glue and a hardening agent therefor such as formaldehyde or hexamethylenetetramine may also be added, with or without a flexibility increasing agent such as a "Glyptal" (Registered Trade Mark) resin.  If the protein is added in amounts of less than 50 per cent, or not at all, a hardening agent for the resin is added.  Suitable hardeners are oxalic, tartaric, citric, lactic and acetic acids, and phthalicanhydride.  A mineral acid such as sulphuric acid may be employed, but care must be taken to avoid discolouration.  The preferred amount of cork in the composition is from 65-80 per cent.  Specification 322,752, [Class 70], is referred to.
Patent GB-652459-A (GB)
Title: Improvements in and relating to cranes
IPC: B66C9/04
Filed: 1948-08-06
Abstract: 652,459. Mountings for cranes. STOTHERT & PITT, Ltd., and KINDER, W. C. Aug. 6, 1948, No. 20858. [Class 78 (iv)] [Also in Group XXXIII] A ship's crane is mounted on the base shown in plan in Fig. 2 and comprising girders 2, 3 projecting at the corners to provide overhanging portions 4 carrying rollers 5, 5<1>. The sets of rollers 5, 5<1> are adapted to travel each on one of two mutually perpendicular sets of rails on a ship's deck, the rollers not in use being retracted. As shown in Fig. 5, the carriage may be temporarily supported by screw jacks 14 at each corner, each jack comprising a threaded portion 16 engaging in a threaded collar 17 on the carriage and adapted to be turned by means of a squared head 15 projecting through a plate 9 (Fig. 2), at each corner of the carriage. Each roller 5 or 51 is mounted on a spindle 18 carried eccentrically by a pin 19 fast with a lever 20 having a fixing hole 21 for engagement with either of two locking holes 22, 23 in a flange of the carriage girder so that the roller may, when the carriage is raised by the jacks 14, be turned to and locked in the retracted or lowered position. When in use the crane is anchored in position by bolts 11 mounted in blocks 12 pivoted at 13 to the deck rails, which bolts engage in slots 10 in the plates 9, being locked in place by the nuts shown. The controls for the luffing jib and winding gear of the crane are mounted on a platform above the carriage.
Patent GB-705817-A (GB)
Title: An improved arrangement for the automatic switching on of spare tubes in unattended amplifier stations
IPC: H03F1/54
Filed: 1952-08-20
Abstract: 705,817. Unattended repeaters. FELTEN & GUILLEAUME CARLSWERK AKT.- GES. Aug. 20, 1952 [Dec. 17, 1951], No. 20886/52. Class 40 (4) In an arrangement for replacing a valve in an unattended amplifier in the event of filament breakage, a gas-discharge tube G in parallel with the filament is fired by the increase of voltage resulting from the breakage and operates a driving magnet DM to connect a spare. In the three-stage amplifier shown the filaments which are in series are fed.through the central conductor l of a coaxial transmission line and the gas discharge tubes are fired by striking or firing electrodes which are connected to the switch arms of step-by-step switches SSW. Contacts a, which may be cam operated by the stepping mechanism, interrupt the circuit of the gas discharge tube after each step. An alternative embodiment in which two-electrode gas discharge tubes are connected directly across the filaments is also referred to.
Patent GB-458697-A (GB)
Title: Methods and arrangements for operating colour-changing gaseous discharge tubes
IPC: H05B41/30
Filed: 1935-07-25
Abstract: 458,697. Supplying discharge lamps ; commutating switching arrangements; charging and discharging condensers. RETY, S. P., 48, Mark Lane, and JELLINEK, L., 13, Masons Place, Central Street, both in London.-(Bay, Z. ; 5, Pallavicini u., Szeged, Hungary) July 25, 1935, No. 21217. [Classes 38 (ii) and 38 (iv)] [See also Group XL] In changing the colour of a discharge lamp by supplying it, as described in Specification 344,439, with condenser-discharge impulses which are of intensity many times the normal current strength of the lamp E and which are separated by intervals many times the duration of the impulses, variations in successive impulses due to variations in a spark-gap controlling the discharge of the condenser C are avoided by replacing the spark-gap by a " spark-tube " S, Fig. 3, or by a change-over switch L, Fig. 1. The tube S has a positive column in a capillary tube so that the voltage across its electrodes falls rapidly after the discharge strikes, a capillary of a few mm. diameter being used with inert gas at a pressure of 20-30 mm. When a transformer is used instead of the high-voltage D.C. supply A, Fig. 1, the switch L is oscillated at the frequency of the supply by a coil supplied with A.C. or is rotated by a synchronous motor to give two discharges for each cycle of the supply. The tube S or switch L may be intermittently short-circuited, or the lamp E may be alternately connected to a normal supply and to the impulse supply, so that normal radiation alternates with forced radiation. The contacts of the switch L need not contact directly but may be separated by a small air-gap. The tube S may be structurally combined with the lamp E, but the discharge in the lamp E will not operate itself as the " spark tube " discharge producing the impulses.
Patent GB-405342-A (GB)
Title: Improvements relating to friction clutches
IPC: F16D13/71
Filed: 1933-07-28
Abstract: 405,342. Friction clutches. DUVERNOY, L. L., 16, Cite Moynet, Paris. July 28, 1933, No. 21297. Convention date, Aug. 5, 1932. [Class 80 (ii).] The engagement of a friction clutch is effected in two stages, first under the action of a spring acting directly on the presser plate and then under the added action of the same or another spring acting on the presser plate through pressure-multiplying levers. In a single-plate clutch, a spring 8, Fig. 2, is arranged between the presser plate 7 and the inner ends of radial levers 9 pivotally mounted on the cover plate 12 of the driving member 1, the outer ends of the levers engaging with play in an annular groove 14 in a flange of the plate 7. The sliding control sleeve 15 is pressed against the levers to effect disengagement. On release of the sleeve 15, the spring 8 acts directly on the plate 7 until the play at 14 is taken up, when the levers function to increase the pressure. In a modification, the spring 8 is arranged between the members 7, 15, the outer ends of the levers 9 are pivotally connected to lugs on the plate 7, and the inner ends of the levers engage with play in an annular groove on the sleeve 15. In the form shown in Fig. 3, a spring 16 acts directly on the presser plate and a second spring 19 acts through levers 20 when play at 14 has been taken up.
Patent GB-1293264-A (GB)
Title: Improvements in fault detection circuit for the feedback of a control system
IPC: H02P7/285
Filed: 1970-05-04
Abstract: 1293264 Automatic speed control GENERAL ELECTRIC CO 4 May 1970 [5 May 1969] 21301/70 Heading G3R An electric motor is controlled by a command signal which is compared with a tachometer signal to provide a differential signal for determining the level of energisation of the motor. A fault detection circuit causes the motor to decelerate if a signal proportional to the armature voltage exceeds the magnitude of the speed feedback signal by a pre-selected amount. When the motor is at standstill and the feedback circuit is complete, transistors 80, 92, and 110 are conductive, and relay 62 is energized to allow power to be applied to the motor. If a discontinuity has occurred in the output circuit of a d.c. or a.c. tachometer generator 26, transistor 80 is non-conductive so that relay 62 is de-energised to prevent power from being supplied to the motor. After power has been applied to the motor, a signal proportional to the armature voltage is developed across resistor 118 in the emitter circuit of transistor 110. The speed feedback signal is coupled through the capacitor circuit 121 and across resistor 116 in the base circuit of the transistor 110. If a fault occurs in the feedback circuit which tends to accelerate the motor, the transistor 110 is turned-off and Zener diode 122 breaks down to render the transistor 92 non-conductive. This causes the transistor 80 to be turned-off for de-energising the relay 62. A capacitor 131 prevents transient differences between the armature voltage and speed feedback signals from shutting-down the system. The faults in the feed-back circuit which tend to accelerate the motor comprise a broken tachometer lead or reversal of the leads. The motor is also decelerated when the speed feedback signal indicates that the motor is operating at excessive speed. In this instance, a diode 106, associated with impedance network 104, conducts to turn-off the transistor 92 which results in turning-off the transistor 80 and de-energising relay 62. The motor may be a d.c. machine energised from a generator, a magnetic amplifier or a controlled rectifier, or an a.c. machine from a static inverter or cycloconverter.
Patent GB-240144-A (GB)
Title: Improvements in knife cleaners
IPC: A47L21/00
Filed: 1925-08-25
Abstract: 240,144. Bjelland, I. Sept. 16, 1924, [Convention date]. Knives, cleaning.-A holder 9 adapted to be reciprocated transversely with respect to cleaning pads 1, 2 is provided with notches 10 to engage the reduced portions of the knives between the main portions and the bolsters. The pads are hinged together and are each covered by a cleaning cover 6 secured by means of wedge-shaped strips 8 in grooves 7. The pad 2 is provided with holes to receive guiding rods 12 secured to the holder 9. In a modified construction three pads are hingedly connected the two pairs of adjacent surfaces being provided with cleaning covers. Two adjacent covers serve for cleaning the knives, the other two covers for drying the knives. The lower and the middle pad have holes for the guiding-rods of the knife-holder.
Patent GB-1376831-A (GB)
Title: Harvesting machines
IPC: A01D57/04
Filed: 1972-05-08
Abstract: 1376831 Harvesters; adjustable reels MASCHINENFABRIK FAHR AG 8 May 1972 [9 June 1971] 21374/72 Heading A1F The reel 4 of a harvester is mounted on a mowing platform 1 via a pair of quadrilateral linkages rigidly interconnected by laterally extending frame members (11), (12) (Fig. 3 not shown) and each comprising a reel support arm 5, pivot levers 6, 7, 8; a hydraulic jack 10 acting on a respective lever 8 for vertical adjustment of the reel 4 and a hydraulic jack 10 acting on the respective linkage via a lever 13 for horizontal adjustment. The weight of the reel 4 is counter balanced by a pair of springs 15 and the levers 13 may be connected to the levers 7 or to the rearmost frame member (12).
Patent GB-711737-A (GB)
Title: Ventilator terminals for flues and chimney pots
IPC: F23L17/02
Filed: 1951-09-12
Abstract: 711,737. Ventilators. UNIVERSAL ASBESTOS MANUFACTURING CO., Ltd., and SNELLING, J. C. June 17, 1952 [Sept. 12, 1951], No. 21469/51. Class 25. [Also in Group XI] A ventilator terminal for heating apparatus comprises an open-ended pressure equalizing duct 12 disposed ambiently about the flue 1 of the apparatus and adapted to pass through the wall bounding the space containing the apparatus so that air can pass inwardly in the ambient space, i.e. in a direction opposite to that of the outward flow of gases in the flue itself, the flue 1 projecting forwardly beyond the duct in the wall and carrying a deflector 4 flared outwardly rearwardly towards the wall and three equidistantly spaced fixing lugs 7 and also forwardly away from the flue to the peripheral edge 8<SP>1</SP>, a cap 14 being fixed to the deflector by nut and bolt connections. In order that the duct 12 may be used in walls of varying thickness it comprises telescopically joined portions 6, 5, circular spider web-like flanges 10, 20, with respective air inlet holes 13, 21, forming the ends of the portions 6, 5 respectively and serving to support and locate the flue 1 in the wall. The flue 1 carries at its forward end a sleeve 2 which is united within, or formed integrally with, the deflector 4. The flue, duct, and deflector are made of asbestos cement or other heat-resistant material.
Patent GB-991161-A (GB)
Title: Improvements in or relating to embroidery machines
IPC: D05C9/04
Filed: 1960-06-18
Abstract: 991, 161. Sewing-machines. A. GOLDSMITH, and M. T. MOTE. Sept. 15,1961 [June 18, 1960], No. 21494/60. Heading D1G. A plurality of carriers 10 for embroidery frames are each independently adjustable along a pantograph rail 1 and are securable in that adjusted position by means 27, the means permitting the frame to be swingable about the length of the rail. Each carrier has arms 22 with noses 21 engaging a groove under the upper flange 2 of the rail. The means 27 comprise brackets lockable to the flange 2 at the selected position, when rollers 24 on leaf springs 26 engage pins 23 on the arms. The embroidery frame is secured in the carrier by fixed clips 11 and movable clips 12. The rail is releasably secured to a pantograph arm bracket 4 by clamping washers 6.
Patent GB-1104184-A (GB)
Title: Improvements in or relating to waveguide filters
Inventor: CRAVEN GEORGE FREDERICK
IPC: H01P1/208
Filed: 1966-05-16
Abstract: 1,104,184. Waveguide filters. STANDARD TELEPHONES & CABLES Ltd. 16 May, 1966, No. 21547/66. Heading H1W. A waveguide filter comprises two or more waveguide cavities coupled both inductively and capacitatively so as to produce a rejection frequency. As shown, three half-wave resonant cavities 3, 4, 5 are stacked in the E-plane and coupled through common broad walls. Holes 1 and slots 2 respectively provide capacitative (X C ) and inductive (X L ) coupling, the condition for an attenuation pole being X C #1/X L.  when ###/2, where # is the length of each cavity. The theory of the filter is more fully discussed in the Specification where it is shown to be equivalent to a bridged-T network. In the multi-cavity form, the cavities may provide different rejection frequencies within a desired band, or may be substantially identical.
Patent GB-1524317-A (GB)
Title: Cooling apparatus
IPC: F25D13/06
Filed: 1977-04-19
Abstract: 1524317 Cooling apparatus SOUTHERN & REDFERN Ltd 19 April 1977 [25 May 1976] 21595/76 Heading F4H In apparatus for cooling products e.g. poultry, the products are conveyed through a cooling chamber by a conveyer comprising two spaced apart endless roller chains between which a plenum chamber is positioned to direct cooled air therefrom on to the products in mutually inclined jets 21, 22, 23 by means of spaced elongate slot members 17 supported in an open framework. Each member is an elongate rectangular sheet having flanges 18, 19 formed on one side by bending the longitudinal edges to a plane inclined to the sheet and to any perpendicular to the sheet, adjacent sheets thereby providing slots 20.
Patent GB-1211144-A (GB)
Title: Drum type flake cutting machine for producing flake shavings
IPC: B27L11/02
Filed: 1968-05-08
Abstract: 1,211,144. Woodworking. BIURO KOMPLETOWANIA ZAKLADOW PRZEMYSLU DRZEWNEGO BEKAZED. 8 May, 1968 [8 May, 1967], No. 21683/68. Heading B5L. A drum-type machine for cutting wood shavings comprises a magazine-and-feeding chamber having a cross-section in a plane A-A perpendicular to the axis of rotation of the drum formed on one side by a section of a circle generated by a cutting tool secured to the drum 1 and on the other side by a wall in the shape of an involute, the ends of the chamber being formed by two parallel side walls of a fixed frame 6. The drum is supported by tubular shafts 2, 3 in bearings in the frame and is rotated by a motor 4. Shaft 2 contains a fan 7 and a worm-type guiding stator 5 is disposed within the shaft and secured to the frame so that shavings produced by cutters on the drum and passed through holes to the interior of the drum are expelled therefrom through the tubular shaft 3. Alternatively, a stream of air could be supplied from some other source to the shaft 2. The frame has a fixed part 6 and a part 8 which is in the form of an involute curve and provides, with the cutter, the magazine-andfeeding chamber, the part being mounted on a pivot 9 and a shock absorbing member 10.
Patent GB-333710-A (GB)
Title: Improvements relating to coin freed vending machines
Filed: 1929-07-15
Abstract: 333,710. Day & Millward, Ltd., Keach, H., and Crompton, S, C. July 15, 1929. Testing coins.-Iron &c. discs are attracted by a magnet c carried by a pivoted arm f and arranged opposite a gap d in the shoot b of a coin-freed machine. The next inserted coin or disc acts on a roller g carried by the forked end h of a rod i at the mouth of the shoot and raises this rod which, through a bell-crank lerver j, actuates a rod k. 'The rod k has a wedge l which tilts the arm f to carry the spurious disc away from the shoot, the disc being stripped from the magnet by a pair of metal strips e or by the side of the shoot.