baber/WOPTO huggingface dataset:
Patent GB-1350452-A (GB)
Title: Rotary cutting tool for cutting apparatus
IPC: B02C18/20
Filed: 1971-05-21
Abstract: 1350452 Rotary cutters J KARPF and G WALTER STEFFENS 21 May 1971 [4 June 1970] 16222/71 Heading A4C A rotary cutter comprises a driving shaft carrying a plurality of driving members 2, Fig.3, a parallel-sided groove 2' in each member 2, a respective knife 3 or each of two respective knives removably secured in each groove 2' each by a respective securing member 3a, each member 3a having an edge engaging a lateral wall of the corresponding groove, said edge having teeth 3c engaging teeth 2f on said engaged lateral wall to secure the knife against radial movement relative to the driving shaft. Each member 3a may have two parallel edges each provided with teeth, the teeth on one edge being offset relative to those on the other edge by half a tooth length, and both lateral walls of each groove 2' may have teeth. The knives 3 may be evenly spaced around the driving shaft, Fig. 2 (not shown), or arranged in groups, Fig. 1 (not shown). Each groove 2' may be formed by mounting two jaw members 2b in spaced positions on a disc 2. Each securing member 3a may have an oblong hole 3b receiving the driving shaft. Each groove 2' may receive two securing members 3a, each having a bifurcated inner end part with equal length legs and two lateral edges each provided with teeth, Fig. 6 (not shown), or each having a bifurcated inner end with a longer leg 3d, Fig. 5, and a shorter leg 3g, each leg 3d having a toothed outer edge engaging a respective jaw member 2b and a rectilinear inner edge engaging a respective bar 3f fixed to the base of the groove, which bar is also engaged by a toothed or rectilinear outer edge of the shorter leg 3g of the other member 3a in that groove. In a further embodiment, each driving member 2 has a groove 2' on a front face and another groove 2' on a rear face, each groove receiving a respective single securing member 3a. The securing member 3a may be the knife shanks, or members fixed to the knife shanks which may then have peripheries corresponding to the driving discs 2, Fig. 8 (not shown).
Patent GB-1501666-A (GB)
Title: Method and apparatus for testing the fuel injection system of a diesel engine
IPC: G01M15/09
Filed: 1975-04-18
Abstract: 1501666 Testing fuel injection systems of diesel engines CSEPEL VAS-ES FEMMUVEK HIRADASTECHNIKAI GEPGYARA 18 April 1975 16233/75 Heading G1N(A) [Also in Division F1] A method for diagnostic testing of the fuel injection system of a diesel engine comprises sensing the varying pressure in each injection pump tube between the charger and the atomizer with for example a Piezo-electric transducer 10, determining therefrom the average pressure in each tube and comparing the data thus obtained with prescribed data to ascertain the condition of the system. Signals from the transducer 10 pass to a capacitive divider 12 and pre-amplifier 14, both of a bandwidth corresponding to the frequency spectrum of the signal, the pre-amplifier having an input resistance of the order of 10<SP>3</SP> M#. From amplifier 16 signals pass to an oscilloscope 46, to a measuring instrument 40 via switch 47 and rectifier 18, and to a polarity inverting amplifier 20. A level shifting circuit 22 provides a D.C. voltage to one input of amplitude comparator 24 which is proportional to the average pressure signal, the other input of the comparator receives the pulsating signal and the comparator produces pulses with leading edges corresponding in phase to the start of injection. These pulses pass to a differentiating circuit 28 via power amplifier 26, a circuit 30 measures their frequency and r.p.m. is displayed on indicator 34. Output pulses of circuit 28 are also fed to variable delay circuit 32 and via amplifier 36 and inverting and differentiating circuit 42 operate a flash tube firing unit 44. Moving and fixed marks on the crank-shaft are aligned stroboscopically by adjusting delay circuit 32 and the corresponding injection advance angle indicated on instrument 40 via switch 47 and voltage divider 38.
Patent GB-714118-A (GB)
Title: Improvements in or relating to electromechanical vibrators
IPC: H03H9/62
Filed: 1952-06-27
Abstract: 714,118. Electromechanical impedances. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 27, 1952 [July 2, 1951; July 2, 1951], No. 16243/52. Class 40 (8) An electromechanical vibrator which may be used as a tuned impedance arm or as a filter comprises a hollow magnetostrictive member made of solid, highly-permeable non-conductive material and having rotational symmetry about an axis, one member being laced in a polarizing magnetic field substantially parallel with said axis and linked with a winding which sets up a tangential oscillatory field in the member to cause it to execute torsional vibrations. An annulus 1, Fig. 1, is arranged in a polarizing field Ho produced by the permanent magnets 3 and 4 held in the ferro-magnetic support circuit 11, 12, 13. A winding 2 supplied with alternating current is arranged about a section 10 of member 1, with the result that member 1 is set in torsionl vibration. Member 1 is supported in its nodal plane by means of studs 7 and 8. In modifications, the circuit producing the permanent field Ho and the method of supporting member 1 may be altered to produce a more compact construction, as in Figs. 3, 4 and 8 (not shown). The impedance characteristic of these four forms of the device is as shown in the curve a of Fig. 2. The initial impedance Zo shown in Fig. 2 can be compensated by the use of two coils 2, 2' (Fig. 5), coupled together by a suitably proportioned transformer 15 so that the input current, for example, traverses the winding 2 and the primary of transformer 15 in opposite sense, and for example traverses the winding 2 and the secondary of transformer 15 in the same sense. A modification comprises two vibrator members 1, 1<SP>1</SP> (Fig. 6) each supported in their nodal planes by means not shown, the input winding 2 being arranged around member 1, and the output winding 2' around member 1'. Members 1 and 1<SP>1</SP> are mechanically intercoupled by the non-magnetic elements 18, 19 and 20 and the band-pass characteristic of Fig. 7 is obtained. The solid non-conductive material of which one annulus is made may be a nickel-zinc ferrite and the permanent magnets may be made of the non-conductive material referred to in Specification 708,127, [Group XXXV]. Specification 664,174 also is referred to.
Patent GB-1508596-A (GB)
Title: Shower base
IPC: A47K3/40
Filed: 1975-05-19
Abstract: 1508596 Shower basins GARDEX Ltd 19 May 1975 [26 June 1974 14 Aug 1974 5 Sept 1974] 16303/77 Divided out of 1508594 Heading A4N A shower base is provided with a body 10 in the form of a shell having an upper surface shaped to define a bowl for receiving water and directing it towards an outlet and downwardly directed side walls 11 forming a plinth, a moulded-in framed plastics filling 22 providing rigidity for the walls and support for the bowl, and a pair of generally triangular retainer members 26 secured to the floor by screws 27 &c. and/or adhesive, said members engaging in recesses 25 beneath the base to prevent movement thereof. The filling is additionally recessed at 23, 24 to accommodate waste pipes &c.
Patent GB-150858-A (GB)
Title: Flying boat
IPC: B64C35/00
Filed: 1919-06-30
Abstract: 150,858. Rae, H. F. June 30, 1919. Floats for aerial machines.-A flying boat built of light wood and canvas, or alloys of light metals, is provided with side floats n and propelling and steering means both for use in air and water, and is fitted with a single aeroplane a in the form of two triangular plane surfaces at an angle with one another transversely, and having the astern points of the plane situated aft of the line of junction as shown in Fig. 2. The boat has a concave canvas top, and is fitted with bulkheads from which the plane a is supported by uprights and cross bracings. Stays k also pass from the edges of the plane to the gunwale. The forward under surface b acts as a hydroplane surface when on water and co-operates with the aeroplane a when in the air.
Patent GB-318658-A (GB)
Title: Improvements in or relating to continuous wire-drawing machines
IPC: B21C1/04
Filed: 1928-06-06
Abstract: 318,658. Bond, E. S. June 6, 1928. Drawing wire; tongs and grippers. - A continuous wire drawing machine has the intermediate drawing drums d, e carried by shafts o, p which are adapted to be independently clutched to the driving gears r, s to facilitate the threading of the dies. The clutches w, y are controlled by treadles. The final drum k is intergeared with the remaining drums and is driven through a clutch controlled either by a lever 1 or by a treadle 2. The drums are provided with guide channels 12 and with recesses 11 housing drawing tongs 7. The dies 3 are mounted in boxes 4 formed with troughs for lubricant, the boxes being carried by levers 5 pivoted at 6 to the frame to allow self-alignment of the dies to take place. Specification 12136/86 is referred to.
Patent GB-937713-A (GB)
Title: Improvements relating to magnetic devices responsive to varying liquid levels
Inventor: THOMAS HERBERT BERNARD
IPC: G01F23/56
Filed: 1961-05-05
Abstract: 937,713. Magnetic switches. RONALD TRIST & CO. Ltd. May 7, 1962 [May 5, 1961], No. 16451/61. Class 38 (5). [Also in Groups XIII and XVIII] In a magnetic switching device as described in Specification 765,708, the mercury switch 17 is mounted on a rocking member 14 connected to the driven magnet 8 to rock with it but limited in its rocking movement by stops 18, 19, the connection between member 14 and magnet 8 being adjustable so that while the angle through which member 14 rocks remains constant the angle of rocking of magnet 8 can be varied. Member 14 is a bell-crank with the switch 17 on one arm and a slotted arm 13, and the frame 9 of magnet 8 has a slotted arm 12 overlapping arm 13 and connected to it by a pin 15 and slide 16 providing the adjustable connection. The lower arm of bell-crank 14 carries a third magnet 28 which is in magnetic repulsion with the driving magnet 5 so that when magnet 5 is in its lowest position C the switch 17 is closed. In normal operation when the driving magnet 5 is in position A, switch 17 is open, and when magnet 5 moves to position B the switch is closed, switch 17 being in the electric circuit of a liquid supply pump for a boiler in which the liquid level is controlled (see Groups XIII and XVIII).
Patent GB-1310044-A (GB)
Title: Time delay circuits
IPC: H03K17/292
Filed: 1970-04-07
Abstract: 1310044 Control systems for consuming apparatus TEXAS INSTRUMENTS Inc 7 April 1970 [21 April 1969] 16460/70 Heading H2H [Also in Division H3]  In a time delay circuit of the type in which the delay is timed by charging a capacitor, the capacitor is initially precharged to a preliminary voltage level when a discharging switch is opened and the timing period is terminated when a threshold device becomes conducting at a predetermined level of voltage across capacitor and provides a discharge path for the capacitor. The invention is described as applied to a switching circuit (Fig. 1, not shown) in which an input signal of low level switches a first triac to operate a reed relay having a contact which initiates operation of a delay circuit which controls a second triac operating a second relay having, contacts to switch an A.C. supply to a load. A similar circuit (Fig. 5, not shown) switches off a load after a delay. Initiation of the operation of the delay switch in the control circuit is effected when the reed relay closes contact 32. Transistor 80 turns off and a capacitor 54 rapidly charges through resistor 52 until a threshold value determined by a potentiometer 88, 90 is reached whereupon diode 92 becomes non-conducting. Charging thereafter continues at a slower rate through resistor 52 until a complementary latch 104, 108 becomes conducting. This discharges the capacitor and causes a reed relay 64 to operate, its contacts causing the succeeding triac to conduct. The latch remains conducting holding the relay operated until the contact 32 is reclosed.  In a delayed release circuit (Figs. 5 and 6, not shown) the inverter transistor 80 is omitted and a discharge of the capacitor is effected through the contact. In addition an inverter transistor is connected between the latch and the output transistor which thus holds the relay operated and the load energized when the input contact is closed. Closure of the contact also provides a pulse to terminal 128 to initiate firing of the triac (46) control the output triac (155).
Patent GB-560613-A (GB)
Title: Improvements in the attachment of spinners to the hubs of airscrews
IPC: B64C11/14
Filed: 1942-11-21
Abstract: 560,613. Fastenings. CONSTANT SPEED AIRSCREWS, Ltd., and MARSHALL, F. G. Nov. 21, 1942, No. 16495. [Class 44] [Also in Group XXXIII] In an airscrew in which the spinner is attached to the hub by the interengagement of male elements on one part with female elements on the other part, these elements are formed as integral portions of the respective parts. The elements may be circular in crosssection, of cylindrical or tapering form, and they may be pressed out in a single operation in which their clearance is controlled by using a lubricant of predetermined viscosity. In the form shown in Fig. 1, supporting plates 15, 20 rigidly secured to flanges 16, 21 on the front and rear ends of the hub are formed with hollow spigots 13, 19 to engage sockets 12, 18 formed in attachment flanges 11, 17 extending inwardly from the spinner 10. For securing the spinner axially, nipples 22, Fig. 4, are secured to the rear flange 17 between the sockets 18. These nipples have dished heads 24 and extend through openings 23 in the plate 20 and through key-hole slots in an arcuately movable locking ring 26 which may exert axially a resilient tightening force. The locking ring is retained in the locked position by a resilient finger 28, Fig. 3, secured to the plate 20 and bearing on the locking plate between two pressed-up bosses 29. To facilitate the entry of the spigots 19 into the sockets. 18, a thimble 30 may be secured to the plate 20 to extend forwardly through one of the spigots. Specifications 451,553, 485,903, [both in Group XXXIII], and 548,910 are referred to in the Provisional Specification.
Patent GB-1127549-A (GB)
Title: Air cooled friction coupling
IPC: F16D27/112
Filed: 1967-04-11
Abstract: 1,127,549. Cooling friction clutches and electromagnetic disc brakes. WARNER ELECTRIC BRAKE & CLUTCH CO. 11 April, 1967 [5 May, 1966], No. 16523/67. Headings F2C, F2E and F2L. A friction clutch and brake assembly has a cylindrical squirrel cage fan 83 fast with an input shaft 12 and surrounding the friction surfaces to produce a cooling air flow. The clutch and brake are both of the stationary magnet type, the clutch having a stationary magnet winding 30 co-operating with polepieces of a rotor 35 forming the driving element of the clutch and which is fast with the input shaft 12. A driven shaft 13 has an output clutch disc 51 splined thereto. The brake comprises a disc 93 splined to the shaft 13 and frictionally engageable with a stationary magnet 84-89. The fan 83 is riveted to the rotor 35 and extends axially over all the friction surfaces. The driven disc of the clutch, and the brake rotor, are of similar construction, and the clutch disc comprises friction segments 50 riveted to embossed portions of the disc so as to provide radial channels for cooling air between adjacent segments and a gap between the back of the segments and the face of the disc. The assembly has a stationary housing 10 by which it is secured to a casing 23 of a driving motor, holes 70 being provided in the periphery of the housing for the admission of cooling air to the clutch, and holes 100 in an end wall admitting air to the brake. The fan expels air through outlet apertures disposed in the lower half of the housing and having fins inclined forwardly and rearwardly in alternate apertures so that alternate apertures act as outlets for opposite directions of rotation. When the clutch and brake are disengaged a constant air gap is maintained between their friction elements despite wear. Again the clutch and brake arrangements are similar, and for the clutch the driven disc is disengaged by a wavy spring 63 acting through a disc 64 having an axial flange 65 bearing against the driven disc. A ring 66 is contracted around the teeth of the driven member 67, and is shifted axially when the clutch magnet is energized to permit clutch engagement. The spring 63 is not strong enough to move the ring 66, so that on deenergizing the clutch, the disc 64 is shifted by the spring 63 until it abuts the ring 66 so that a constant air gap is maintained as determined by the extent to which the axial length of the flange 65 exceeds the thickness of the ring 66. Reference has been directed by the Comptroller to Specification 1,040,864.
Patent GB-609721-A (GB)
Title: Improvements relating to the construction of buildings and enclosures
IPC: E04B1/343
Filed: 1945-06-28
Abstract: 609,721. Poultry coops &c. HAWES, H. L. June 28, 1945, No. 16549. [Class 5(ii)] [Also in Groups X and XVII] A poultry run is built up by sliding rigid frames 252, enclosing wire mesh panels 251, into shoulders formed on corner members 26 and intermediate members 31 and drawing and holding the panels together by flexible and resilient cables 28. The panels abut against stiffening ribs 31h on the members 31, which ribs are slotted to take the cables. The cables include springs 29 and the ends of each cable are anchored to a turnbuckle 33.
Patent GB-531252-A (GB)
Title: Improvements in or relating to motion transmitting mechanism for gauging devices
IPC: G01B3/00
Filed: 1939-06-06
Abstract: 531,252. Linkage for gauges. STEVENS, A. H. (Sheffield Gage Corporation). June 6, 1939, No. 16583. [Class 80 (iii)] Linkage for transmitting motion from a thrust member 31 to the indicator 34 of a lineardimension gauge comprises a fixed member 11 and a movable member 10 mounted for a small swinging movement about an axis determined by the point of intersection of a pair of leaf springs 12, 13 each secured at one end to the fixed member and at the other end to the movable member. Limit stops are provided by a stud 38 on member 11 engaging a slightly larger hole 37 in member 10. The member 10 has hardened thrust surfaces 30, 32.
Patent GB-1026075-A (GB)
Title: Paper holding devices for use in paper hanging
IPC: B44C7/06
Filed: 1963-04-26
Abstract: 1,026,075. Paper racks. C. T. TYSON. Feb. 26, 1964 [April 26, 1963], No. 16587/63. Heading A4H. [Also in Division B6] A trough for supporting folded pasted paper during hanging has one side wall shorter in length than the other. Both side walls are provided with outwardly extending flanges 5 and 6, but the flange six may be replaced by an elongate roller to run on the surface to be papered whilst the paper is fed out of the trough over the flange 5. A blade 8 pivoted at 7 is spring biased agaist the wall 3 but may be pressed against the paper in the trough to control the feed, by a knob 9 extending through a hole in the wall 3. A groove 10 is provided in the larger wall 4 to facilitate gripping the trough. The blade 8 may be faced with synthetic plastic foamed material. The trough may be metal or synthetic plastic. In addition a wire cradle may be provided so that the trough can stand upright on a flat surface or hang from a vertical surface such as a wall, in which case the trough can serve as a paper rack.
Patent GB-1423727-A (GB)
Title: Nozzle shut-off and flow control valve
IPC: B29C37/00
Filed: 1973-04-06
Abstract: 1423727 Nozzles for injection and blow moulding machines UNION CARBIDE CORP 6 April 1973 [7 April 1972] 16640/73 Heading B5A [Also in Division F2] A combined nozzle shut-off and flow control valve for an injection or blow moulding machine comprises a valve stem 16 which is movable axially to vary the spacing between its surface 18 and a surface 20 of the valve bore, and a valve rod 24 which is slidable in a passage in the valve stem 16 to open and close an outlet passage 14 in the valve body. Adjustment of the valve stem 16 may be by screw threads (not shown). A number of injection nozzles may be connected to a common feed passage 12 in a manifold 10 through inlet passages 26. Fig. 2 (not shown) shows a modification in which the valve stem 16 and rod 24 pass through the manifold feed passage 12.
Patent GB-420837-A (GB)
Title: Improvements in surface-decorated glass and process for the production thereof
IPC: B44F1/02
Filed: 1933-06-10
Abstract: 420,837. Sand - blast. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool.-(Vitrolite Co. ; Parkersburg, West Virginia, U.S.A.) June 10, 1933, No. 16649. [Class 60] [See also Groups X and XV] A sand-blast process to produce images in apparent relief, such as the fluted effect shown in Fig. 1, on smooth opaque glass sheets, consists in removing in succession from the righthand side protective strips and subjecting the exposed glass to gradually increasing jets of sand 5, 6, the centre of which is always at the left side. The image shown in Fig. 2 is produced by protecting the face and sand-blasting in the same manner along the edges of the outlines.
Patent GB-702117-A (GB)
Title: A method of carrying out the aerobic fermentation of green fodder followed by the anaerobic storage thereof
IPC: A23K3/03
Filed: 1952-07-04
Abstract: The aerobic fermentation of green fodder for subsequent anaerobic storage is effected by intensively bruising the fodder, afterwards subjecting it to a wind-drying process on gauze-covered superposed frames and thereafter storing in hermetically-sealed containers.  The containers may be in the form of flexible tubes of synthetic resin closed at both ends after filling.
Patent GB-552934-A (GB)
Title: Improvements in and relating to chessmen or pieces for playing the game of chess
IPC: A63F3/02
Filed: 1941-12-31
Abstract: 552,934. Chessmen. PERRY, J. Dec. 31, 1941, No. 16847. Drawings to Specification. [Class 132 (ii)] Chessmen are made in the form of flat pieces of material of circular or other regular shape to one face of each of which is adhesively secured paper (normally enamelled or glazed paper) on which representations indicating the particular character of the piece (King, Queen &c.) are imprinted, impressed or transferred. The pieces may be formed of strawboard, cardboard, millboard, pulp-board, leather-board, plywood or the like and may consist of several layers or plies.