baber/WOPTO huggingface dataset:
Patent GB-1113134-A (GB)
Title: An electric motor control circuit
IPC: H02P7/29
Filed: 1966-05-17
Abstract: 1,113,134. Control of D.C. motors. J. E BROOK. 21 Feb., 1967 [17 May, 1966], No. 21962/66. Heading H2J. In a control circuit for an electric motor, the mains supply is transformed down and applied to full-wave rectifier 2 and smoothing capacitor 3, the output of which appears across potentiometer 4 to provide a continuous supply voltage. Pulses are derived from terminal 6 of the rectifier through diode 8 to give a square wave of mains frequency which is applied to the wiper 5 of the potentiometer where it is superimposed on the continuous voltage. The wiper 5 is connected to the input of a two-stage transistor amplifier 9, 11, which has an emitter follower output to supply the motor across terminals 15. A reversing switch 14 is provided. A pilot light 16 indicates when the motor is taking current. In a modification, resistors 12, 13, are omitted and the emitter resistance of transistor 11 is constituted by the motor. A low value resistor is now connected in the emitter circuit of the transistor 9. Changes in voltage across this resistance, due to variations in motor current, produce a compensating change in output voltage of the motor. Smoothing capacitors reduce short period pulse-height variations at low power settings. An adjustable resistor may be connected between diode 8 and wiper 5 downward movement of which gradually increases the voltage applied to the motor. Initially, pulses appear in increasing amplitude until a maximum is reached. Thereafter, a continuous voltage is superimposed on the pulses, appearing as a voltage level between the pulses. Further downward movement of the wiper increases the proportion of continuous voltage relative to the pulses until the motor is supplied with full continuous voltage only.
Patent GB-1033659-A (GB)
Title: A band clamp
IPC: F16L33/04
Filed: 1963-05-31
Abstract: 1,033,659. Making fastenings and pivots. AEROQUIP A.G. May 31, 1963 [July 2, 1962], No. 21982/63. Heading B3A. [Also in Division E2] A trunnion 20 for a band clamp (see Division E2) is formed by firstly drawing a cylindrical portion 48 from sheet stock and then trimming the part 58 before wrapping it into the configuration shown in the drawing.
Patent GB-303075-A (GB)
Title: Improvements in or relating to electrical time switch mechanism applicable particularly to moulding and vulcanising apparatus
IPC: B29C43/58
Filed: 1927-08-22
Abstract: 303,075. Dunlop Rubber Co., Ltd., Willshaw, H., Davis, W. A., and Smith, H. Aug. 22, 1927. Recording particular operations. - Moulding and vulcanizing apparatus is provided with electrically operated recording and timing devices for determining the duration of treatment given, a visible or audible signal being made when the operation is completed. The system may include a number of vulcanizing presses each having its own timing-mechanism and recorders, or a single recorder may be employed with a battery of presses. The timing-device, Fig. 2, which may operate in a vertical or horizontal position and is similar in construction to the recording-device, comprises a rotating gear 9 engaged by a nut 15 mounted on a pivoted rod 13 carrying an armature 16 energized by the coil 17 when the press switch closes. The nut travels along the gear and in the recording mechanism is provided with a pencil for marking on a rotatable chart. The nut 15 or the pivotal member 13 on the timing or recording mechanism can be returned either by spring or gravity. When a battery of presses is controlled, a single rotating gear 9 may be employed and is associated with a number of timing devices connected with the respective presses. Similarly a common drum of endless band chart can serve for recording the operations of a number of presses.
Patent GB-258261-A (GB)
Title: Improvements in the low temperature distillation or coking of fuels
IPC: C10B37/04
Filed: 1926-09-07
Abstract: 258,261. Plassmann, J. Sept. 10, 1925, [Convention date]. Retorts. - In the low-temperature coking of fuels, the charge is packed closely in the retort or oven by a short stroke or jigging motion of one or more surfaces against which the fuel lies, together with, if desired, the application of pressure. In one form, Figs. 1 and 2, a tapered plate 2 is moved up and down by holders 3 at the top of the retort 1. In Figs. 4 and 6 a tapered plate 7 is arranged at one side and moved horizontally by mechanism 8. Movable lateral pieces 9 are used to compress the fuel. The plates 2 and 7 may be withdrawn to allow the distillates to escape.
Patent GB-1273391-A (GB)
Title: Article of office furniture
IPC: A47B47/03
Filed: 1969-04-30
Abstract: 1,273,391. Desks &c. CHRISTIAN HOLZAPFEL K.G. April 30, 1969 [Jan. 21, 1969], No. 22071/69. Heading A4H. An article of furniture, e.g. desk, table, cupboard, has two side elements comprising L-shaped angle pieces 7, and a table surface 8 rigidly attached thereto at 11, 12, 13, Fig.3. One or two containers, (14), Figs.4 and 6 (not shown) for drawers (15) are provided by one or two extra side elements 7. By extending the rear branches 10 of the side elements 7 or by providing an extra panel (17), Fig. 7 (not shown), a cabinet is provided. The connections 11, 12, 13, comprise L-shaped angle pieces 19, Figs.8 to 11 (not shown), screwed to front and rear, hollow bars 20, Fig. 17, of folded sheet metal adhered in grooves in table surface 8 and inserted in vertical bars 21 adhered in grooves in the side branches 9 of the side elements 7. The bars 21 are of C-section and are adhered to bar pieces 25 also of C-section, Figs.17, (18 and 19) angle pieces 19 being secured therein by screws 26. The bars 21 provide suspensions for drawer guides 29 or compartments and accommodate a drawer locking bar (30), Fig. 19 (not shown). Adjustable feet 22 or rollers have mounting devices 37 secured in the lower ends of bars 21 and 25 by screws 40. When a container (14) is provided, the branches 10, 9 thereof, are interconnected by pieces (23, 33), Fig. 18 (not shown), piece (23) fitting in bar pieces 25 and piece (33) being suspended in holes (34), Fig. 13 (not shown) in bars 21. A gap 24 between parts 7 and 8 allows the mounting of plug sockets and lamp holders. A desk and typewriter table can be joined L-fashion by connecting pieces joined to the front bar 20. Extensions may be connected to the rear bar 20. The parts 7, 8 comprise metal, pressboard, plywood or plastics.
Patent GB-625434-A (GB)
Title: Improvements in face-powder boxes or flapjacks
IPC: A45D33/00
Filed: 1946-07-25
Abstract: 625,434. Powder boxes. LEITER, H. July 25, 1946, No. 22123. [Class 18] A powder box or flapjack having a hinged lid 2 with ar inside mirror 4, has an intermediate mirror-carrying mem ber 6 that is hingec to the body 1 by a flat or wire link 7, so that it can be swung to ar easel-like position for use, and is formec with a plug-like base 6b which co-operates with a seating 1c around the powder well to effect a powder-tight closure Projections 8 on the wall of the seating provide for a snap engagement with the member 6, which is furnished with a finger grip 10. Specification 477,946 is referred to.
Patent GB-635931-A (GB)
Title: Improvements in and relating to trowelling and other surface treating machines
IPC: E04F21/24
Filed: 1947-08-11
Abstract: 635,931. Road-making apparatus. MASTER VIBRATOR CO., and MASTER ELECTRIC CO. Aug. 11, 1947, No. 22290. Convention date, Jan. 11. [Class 107] [Also in Group XXIII]  In a surface treating machine of the type having a power driven rotary member and a plurality of sweeps carried by and radiating outwards from the rotary member, at least one of the working surfaces, which may be suitable for smoothing cement, polishing, scrubbing or grinding down floors, is disposed with its outwardly directed axis in tangential relation to a circle concentric with the axis of rotation of the rotary member. In one form, a pair of working surfaces or plates 19, 20 are attached to the flanges 13, 12 of each sweep 2 by interconnecting angles 21, 22. The outwardly directed axis of the plate 20 is to the rear of, but in parallel relation to, the vertical plane containing the web 11 of the sweep 2 and passing through the axis of rotation of the rotary member. In a modified form, the outwardly directed axis of the surface may be set at an angle to the vertical plane of the web by welding the angle 21 obliquely across the plate 20, whilst in a further modified form the outwardly directed axes of both plates may be at an angle to the plane of the web. Specification 622,070 is referred to.
Patent GB-500788-A (GB)
Title: Rotary hook sewing machine thread-case
IPC: D05B57/14
Filed: 1938-07-27
Abstract: 500,788. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) July 27, 1938, No. 22305. [Class 112] A thread-case for a rotary hook, embodying improvements on the device described in Specification 452,001 and having increased thread capacity, comprises a cup-shaped main section 14 with a peripheral bearing rib 11 and a cylindrical inner wall 23 which is counterborcd at 28 to receive a circular cap section 30, manual latching means being provided to hold the two sections releasably together. The bearing rib 11 runs in a raceway formed in the hook body 5 and closed by a gib 9 having a flange pointed at one end to form a loopcontrolling tail acting as described in Specification 452,001 : the counterbore 28 does not extend inwards as far as the rib 11, so that the bearing portion of the thread-case 14 is of adequate strength. The rim of the thread case is provided with a needle-loop guard-flange 16, notched at 17, and is notched at 20 to receive the usual rotation-preventing member, and the base of the case is chamfered at 49 to form a needle-loop cast-on corner as described in Specification 421,957 ; the rib 11 is cut away to form a needle-loop detaining shoulder 18 and a similar needle-loop confining shoulder, and the wall of the case 14 is cut away as shown is Fig. 8. The cap 30 has a short skirt 29, which covers one flange of the bobbin and fits into the counterbore 28 of the thread case, and a tubular portion 31 which receives the bobbin and fits on a pin 25 carried by the base of the thread-case 14. The skirt 29 of the cap 30 is made deeper at 33 to cover the cut-away part of the wall of the thread-case 14, and this part of the skirt carries the thread-tensioning spring 34, which fits into the cut-away part of the case to prevent rotation of the cap relative to the case. The cap 30 is attached to the case 14 by a latch 39 sliding on the cap and formed with an aperture to engage a groove in the pin 25; the latch is spring-pressed to the engaging position, and is released by a lever 44 pivoted on the latch and formed with a tail engaging an aperture in the cap. The latch has a down-turned end 45 which engages a notch 46 in the thread-case flange 16, to assist in preventing rotation of the cap in the case, and grips the bobbin flange when the latch is released.
Patent GB-380221-A (GB)
Title: Improvements in or relating to record-sheet holders
IPC: B42D12/00
Filed: 1931-08-07
Abstract: 380,221. T-squares. DEHN, F. B. 103, Kingsway, London.-(Felt & Tarrant Manufacturing Co. ; 1735, North Paulina Street, Chicago, U.S.A.) Aug. 7, 1931, No. 22421. [Class 97 (iii).] A movable guide-member 14 is provided to facilitate picking out a horizontal line of items on an assembly of overlapping sheets 15 arranged on a baseboard 11. The cross member 41 thereon is recessed to engage a guide groove formed along the edge 42 of the board 11 by means of a flanged plate 45 and it is secured in any desired position by the engagement of a spring-catch 48 with the plate 45.
Patent GB-898364-A (GB)
Title: Improvements in or relating to apparatus for setting-up cartons
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B31B3/46
Filed: 1959-06-30
Abstract: 898,364. Machines for erecting cartons. METAL BOX CO. Ltd. June 16, 1960 [June 30, 1959], No. 22476/59. Class 18. A carton, of the form shown in Fig. 2 having corner gussets secured by a synthetic resin thermoplastic adhesive, is erected in a die-andplunger type machine and has a conveyer which moves the blanks towards the die in a straight line path and has heating means positioned above the path. Further heaters may be incorporated in the die walls. Side panels 11-13 are secured to walls 2, 4, 5 by tongues and slits not shown. The adhesive may be a polyvinyl acetate resin incorporating plasticisers. The blanks are placed by hand, or delivered automatically from a magazine, on guides 15, 16 which may be adjusted for width by a screw and handwheel 19, 20 and stops engage the end of each blank. Top guides 23, 25 retain the blanks on the conveyer. Elements 26 on the conveyer 27 move the blanks towards the die-and-plunger. Radiant heaters 30 soften the adhesive and are arranged to be raised if the conveyer stops to prevent burning of the blanks. The heating elements 31 are retained in position by a solenoid controlled latch 39. When the main motor circuit is interrupted a solenoid 43 is energised and withdraws the latch and a spring 37 rotates a rod 35 moving the heaters upwardly away from the blanks. Two opposed walls 48, 49 of the die are moved by bell crank levers 52, 53 and cams 58, 59 to press together the adhesively coated carton walls; the walls may incorporate further heaters. The plunger is caused to dwell at the bottom of its stroke while the walls 48, 49 move inwards. When the plunger withdraws, an ejector plate 68 and stripper elements 75 separate the carton from the machine so that it is removed by a pusher type transfer device.
Patent GB-418250-A (GB)
Title: Improvements relating to pencil sharpeners and paper weights or the like
IPC: B43L23/08
Filed: 1933-08-11
Abstract: 418,250. Smokers' ash-trays. HALLAM, A. E., 58, High Street, Grays, Essex. Aug. 11, 1933, No. 22482. [Class 130.] An ash-tray, paperweight, inkwell, or similar massive body for use on a desk or table is provided with a pencil sharpener comprising a bore to receive the pencil end, and into which projects a sharpening blade. As applied to a paperweight 3, the blade 5, preferably a wafer safety-razor blade, is clamped thereto by means of a screw 8 which may be screwed into any of a number of holes along the centre of a recess 7. One or more downwardly sloping bores 4 may be provided contiguous to the two edges of the blade 5, and the inner ends of the bores may connect with a receptacle for shavings, which may be emptied by means of a drawer. Alternatively, access to the receptacle or to the blade may be obtained by the removal of an ash-tray, inkwell, or the like embodied in the device. The device is sufficiently heavy to remain motionless while in use, or may be provided with a sucker to attach it to a table top.
Patent GB-1007400-A (GB)
Title: Improvements in or relating to amplitude limiting circuit arrangements for high-frequency oscillations
IPC: H03G11/00
Filed: 1964-06-02
Abstract: 1,007,400. Limiters. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT. June 2, 1964 [June 5, 1963], No. 22658/64. Heading H3W. In a high-frequency limiting circuit comprising a limiter 4 followed by filter 5 passing only the fundamental component of the applied signal, the peak amplitude of the filtered signal can, due to the harmonics produced in limiting, rise to 4/# times the limiting level. According to the invention, in order to restrict the output level to the limiting value a compensating circuit is provided, comprising a threshold circuit 1 passing signal before the limiting level is reached, followed by a phase-reverser 2 to produce a compensating signal which is combined with the output from the limiter 4 in adder 3. The phase reverser 2 may comprise a transformer, which may be of step-up ratio to give a greater compensating signal.
Patent GB-1105642-A (GB)
Title: Steering control simulator means for vehicles
IPC: A63H18/02
Filed: 1965-05-28
Abstract: 1,105,642. Toy vehicle tracks and control means. A. E. GOLDFARB. 28 May, 1965 [1 Feb., 1965], No. 22711/65. Heading A6S. [Also in Division H2] In driving a toy, electrically operated vehicle, there is used a track means having a plurality of sections of different configuration, each section including an electrical conductor for supplying power to the vehicle, a first connection means for supplying electrical energy to the conductor of one of said track sections having a first configuration, a second connection means for supplying electrical energy to the conductor of a second track section having a second configuration, switch means for selectively connecting said first and second connection means with a power supply, this switch means including a steering wheel for operating said switch means whereby the conductor of a track section having a particular configuration is energised so as to propel the toy vehicle by rotating the steering wheel in a manner corresponding to said configuration to simulate steering the vehicle. Incorrect operation of the steering wheel will, according to one embodiment, cause the vehicle to stop on leaving the energised section. In another embodiment (Fig. 6, not shown) full power is applied to the next section so as to cause the vehicle to leave the track if the switch means is not correctly altered by the steering wheel. The switch means may comprise a simple leaf contact, or may be (Fig. 7, not shown) two discs, one rotating on the other, each being provided with the appropriate contacts. The track comprises a three line system in which the centre line comprises a conductor in a sunken groove and connected to a common negative terminal 54 of a battery 52, the said groove also acting as a guide groove. The positive terminal 56 of the battery is connected through rheostats 68, 118, to steering wheel switches 72, 122, respectively, which convey current to three track sections having different configuration, viz:-right-hand curves, left-hand curves, and straights, through three correspondingly situated contact points on the steering switch, the three different track sections being insulated from each other. Thus until the steering switch is moved to energise the track section on which a car is entering, in this embodiment, no current is available. When the switch has been moved to the correct position, speed may be controlled by the appropriate rheostat, which may be combined in a single unit with the steering switch, which unit is held in the hand of the operator. When two cars are being raced, a car may be changed by means not described, from one track to the other by means of the connecting track 172.
Patent GB-1022943-A (GB)
Title: Improved pile driving mandrel
IPC: E02D7/30
Filed: 1964-06-02
Abstract: 1,022,943. Pile driving mandrels. F. RUSCHE. June 2, 1964 [Nov. 15, 1963], No. 22787/64. Heading E1H. A pile driving mandrel comprises a tube 10 provided with head and foot end plates 12, 14; an outwardly expressable surface 22 carrying lugs 24, means 36 for biasing the surface to a retracted position, means 42 disposed within tube 10 and operable from outside the tube for expressing surface 22 to enable lugs 24 to engage a shell (not shown), a rigid supporting structure for means 42 extending within the tube and resilient means interposed under compression between the structure and at least one of the end plates. As shown, the supporting structure extends along the length of the tube and comprises a square tube 44 welded to four angle irons 46. At its lower end 56 tube 44 is rounded and enters a hole and is welded in end plate 84. Relative rotational movement between plates 84 and 14 is prevented by studs 88. Between plate 84 and foot end plate 14 are disposed discs 94 forming a resilient pad 60. Each disc comprises a matrix of elastomeric material reinforced with fabric. The top end of the supporting structure is welded to a plate 80 and a pad 60 is disposed between plate 80 and head end plate 12. A square tube 82 is welded to the lower face of plate 12 and square tube 44 telescopes into it to prevent relative rotation. The expressing means comprises inflatable hoses 42 which communicate with a manifold 48 to which air is conducted by a fitting 50. Figs 6 and 8 (not shown) illustrate two mandrel sections coupled together as described in Specification 1,002,741, with resilient pads 60 disposed one in each section between the appropriate head or foot end plate and the end plate of the supporting structure.
Patent GB-298335-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J7/12
Filed: 1927-08-31
Abstract: 298,335. Walker, A. H., and Weymann's Motor Bodies (1925), Ltd. Aug. 31, 1927. Hoods. - In road vehicles of the saloon type having an aperture in the roof closable by a flexible canopy is tied at its rear end to the roof and arranged to be rolled up about its front edge which is stiffened by a rigid cross bar or the like the front end and sides being adapted for detachable connection with the roof structure. The flexible canopy 15 is secured to the roof structure at the rear of the closable aperture 14 and may. be, when rolled up, secured there or at an intermediate part by straps 23. The canopy is provided at its front end with a bar 17 which, when the canopy is extended, is adapted to clip into brackets situated at the front of the roof structure. The sides are adapted to be secured by press studs 25. Specification 174,933 is referred to.
Patent GB-1011274-A (GB)
Title: Means and method for preparing gas-treated objects
Inventor: STOKES PETER GRANVILLE
IPC: B22C1/16
Filed: 1963-06-08
Abstract: <PICT:1011274/C6-C7/1> <PICT:1011274/C6-C7/2> The gas treating of components is effected by placing them in segmental compartments of a rotor which is rotatably mounted in a cylindrical casing 8.  The rotor is indexable, station (i.e. segmental compartment) to station, from a loading position to a gassing position wherein gas, e.g. ammonia, is admitted to each respective compartment through inlet 14 in the wall of the casing 8.  Further indexing brings holes 3B and 2A in the rotor into co-operation with holes 10A in the floor of the casing 8 so that suction applied through a tube 11, coaxial with a central tube 4 causes air to flow through the holes 3B and 2A to purge the chamber of gas.  Components are successively loaded into the rotor compartments and gassed and purged in turn.  The whole operation may be manual or automatic and instead of individually loading the rotor compartments with components a completely loaded rotor may be located in the casing and changed at the completion of the operation.