baber/WOPTO huggingface dataset:
Patent GB-545879-A (GB)
Title: Improvements in variable reactance devices, particularly for frequency modulation
IPC: H03C3/14
Filed: 1941-01-27
Abstract: 545,879. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 27, 1941, No. 1085. Convention date, Jan. 27, 1940. [Class 40 (v)] A frequency controlling circuit arrangement comprises a reactor valve to the anode and grid of which voltages are applied from the oscillatory circuit. The voltage applied to the grid is derived from a two-stage phase shifting network so that a phase displacement exceeding 90 degrees may be obtained so that a greater change in reactance is obtainable and less loading is imposed on the oscillatory circuit. Fig. 2 shows an oscillator 9 and differentially arranged reactor valves 11<SP>1</SP>, 35 connected in parallel to the coil 7, the grid 29 being fed with phase displaced voltage from the coil 7 and the valve 35 being fed with phase displaced voltage from the coil 7<SP>1</SP> of apposite phase, the phase shift of the networks R 1 , C 1 , R 2 , C 2  and R 3 , C 3 , R 4 , C, being greater than 90 degrees. The valves 111, 35 are preferably biased for Class B operation and may be used to frequency modulate the oscillator from source 67. Fig. 3 shows a method of modulating a push-pull oscillator, parallel reactor valves 52, 53 and 55, 57 fed with voltages out of phase are connected across the valves 7, 7<SP>1</SP> of the coil in the oscillator tank circuit. The control voltages may be applied to the screen or suppressor grids instead of to the control grids as shown, and the phase shifting networks may include inductances instead of capacities.
Patent GB-163390-A (GB)
Title: Improvements in embroidering machines
IPC: D05C1/00
Filed: 1920-01-13
Abstract: 163,390. White, A. E., (Balinky, A.). Jan. 13, 1920. Hand sewing-tools.- Means are provided for feeding the tool along the work at each reciprocation of the needle. In the construction shown in Fig. 3, the needle-bar 5 is reciprocated in the sheath 1 carrying a presser foot 3 to which is secured a web portion 4 having pivoted thereto at 14 the members 15, 16. The foot 3 is slotted at 3<1> to receive a feeddog 21 guided by the tongue 19 and pins 31 and pivoted at 17 to the member 16, which is oscillated by the engagement of a projection 25 and an adjustable nut 27, carried by the member 15, with shoulders 23, 24 respectively on the member 16. The member 15 is oscillated by a pin-andslot connection with the needle-bar. By this means, the action of raising the handle 10 to withdraw the needle from the work actuates the dog 21 to feed the tool by one step. An adjustable collar 11 on the needle-bar 5 limits the extent of downward movement of the needle. A threadgripping member is carried by a rod received in the handle 10 which slides on the bar 5, so that on raising the handle, the thread is gripped first and afterwards the needle is withdrawn from the work. In the modification shown in Fig. 7, the needle is carried in a block 5 held in the full-line positions by a spring 9 and pivoted at 6 to the member 4, which is reciprocated in the frame 1 by the handle 10. At the end of the workpenetrating movement of the needle, the screw 7 engages the tail-piece 19 adjustably secured to the frame 1 by the pin 23 and holes 22, and the needle is tilted to vertical position to feed the tool one step along the work. The position of an adjustable wedge 24 determines the tilt of the needle thereby controlling the extent of feed. A thread tension device 30 is mounted bn the frame 1 and a thread guide 15 having an opening 16 is carried by a member 14 secured in the handle 10. The handle 10 slides relatively to the member 4 so that on raising the handle, the guide 15 first contacts with the member 4, then grips the thread and afterwards lifts the member 4.
Patent GB-1142592-A (GB)
Title: Non-stop sheet stacker
Inventor: HIRCHE RUDI
IPC: B65H31/30
Filed: 1967-01-09
Abstract: 1,142,592. Delivering sheets. KARTONAGENMASCHINENWERK KAMA VEB. 9 Jan. 1967, No. 1142/67. Heading B6H. [Also in Division B8] Sheets 5 are delivered between guides 6 on to a pre-stacking table 1, which is lowered as the stack forms, and when it is in its lowest position of Fig. 2, an intermediate stacking table 4 is moved into position to secure further sheets, while the stack is pushed by a slider 8 on to a lifter table 2 which raises it to the height of the top of a pile of stacks 11, on to which it is pushed by an ejector 3. Meanwhile, the table 1 is raised up to the table 4, which is then withdrawn to the position of Fig. 1, to support the new stack.
Patent GB-659301-A (GB)
Title: Improvements in injection pump pistons
IPC: F02M59/26
Filed: 1949-01-14
Abstract: 659,301. Fuel-injection pumps. SCORZONI, R. Jan. 14, 1949, No. 1145. [Class 102(i)] In a fuel-injection pump, the piston is provided with a number of control recesses 12, 12' that are bounded by inclined edges 3, 3' and communicate through grooves 10, 10<SP>1</SP> with the pumping space. The cylinder has a similar number of control ports 5, 5<SP>1</SP>, all except one being sealed, e.g. by screwed plug 11, so that one recess and one port co-operate at one time. When wear has occurred, the port can be sealed and another brought into operation. In a modification, one port is provided in the cylinder and the piston is rotated to bring another recess into operation with it. The recesses may communicate with the pumping space through diametral and axial bores and the lower edge of the recess may be inclined.
Patent GB-411208-A (GB)
Title: Improvements relating to wireless signalling systems
IPC: H03F1/36
Filed: 1933-01-14
Abstract: 411,208. Valve circuits for wireless reception. MULLARD RADIO VALVE CO., Ltd., and CLARK, R. G., Nightingale Lane, Balham, London. Jan. 14, 1933, No. 1330. [Class 40 (v).] A valve 1, having a directly heated cathode, and used as the first-detector-oscillator of a supeterodyne receiver has its plate circuit inductively coupled to an inductance 12 in one of the conducting leads to the cathode while a choke 15 not coupled to the plate circuit is included in the other conducting lead. The valve 1 is preferably a screen-grid valve. According to the Provisional Specification the choke 15 may be replaced by an inductance coupled to the plate circuit.
Patent GB-674646-A (GB)
Title: Improvements in hammer crushers
IPC: B02C13/26
Filed: 1950-01-18
Abstract: 674,646. Hammer crushers. MIAG VERTRIEBSGES. Jan. 18, 1950 [Dec. 23, 1948; Oct. 3, 1949], No. 1338/50. Class 59 A hammer crusher has a charging hopper in the form of a grating through slits of which the hammers strike, the mountings of the charging grating and/or the hammer shaft being independent of the crusher housing. The charging grating bars 1 are supported within the crusher housing 6 by a traverse 2 mounted outside and independently of the housing 6. The hammer shafts and the screens 7 are also mounted outside and independently of the housing 2. Springs 5 are provided between the top of the charging grating and the crusher housing 6. Each end of the traverse 2 rests on an intermediate plate 15 which lies on springs 16 on a foundation 11. Screws 19 arranged in each intermediate plate 15 may be screwed down to rest on the foundation 11 with the consequent raising of the plate 15 and the traverse 2 so that the springs 16 are unloaded and can be easily changed. The bars 1 forming the charging grating may be divided, each part being supported on the traverse 2, Fig. 9, which has a basic form and is provided with different kinds of intermediate piece 21 so that it may be used to support grating bars of different forms. In one embodiment of the invention the traverse 2 is not mounted independently outside the crusher housing 6 and in another embodiment the screens 7 are omitted.
Patent GB-566196-A (GB)
Title: Improvements relating to prepayment meter mechanisms
IPC: G07F15/02
Filed: 1943-01-27
Abstract: 566,196. Coin-freed meters. PHILLIPS, Ltd., A., and SHAKESHAFT, C. E. M. Jan. 27, 1943, No. 1355. [Class 27] In coin-freed mechanism for a prepayment meter of the kind in which a radially disposed coin carriage is rotated behind a front plate, after receiving a coin inserted through a slot therein, to operate a measuring wheel and coacting gearing, according to which of two coins is inserted, to preset for delivery the appropriate amount of gas or other commodity, the sliding member or gauge plate in the coin carriage is now devised to effect selective operation without the need for pivoted cam or bell-crank lever-like parts. The slide 13 in the coin carriage has two teeth 13c and 13d to engage and set the measuring wheel 16, and when the outer tooth 13d, by the insertion of the larger coin, is brought into mesh, a cam 13e formed on the slide at the same time engages a head 17a on the measuring wheel shaft and moves it endwise to change the gear ratio between the shaft 17 of the measuring wheel 16 and the hollow parallel shaft in which slides the shaft 28 carrying the collar 28b that rocks the arm 31, toothed arc 32 and pinion 33 to open and close the gas or commodity delivering valve arm 35. A spring 36 on the shaft 34 of pinion 33 tends to open the supply, as also does the shaft 28 when it is rotated to work its threaded part into the threaded hub of a pinion 29a, the supply being closed by a meter driven worm 37 turning the gear 29a to return the shaft 28. The latter has a flat to engage in and turn with the countershaft carrying the pinions which engage the pinions 21, 20 of which 20 engages and drives its pinion on the countershaft when the smaller coin is inserted, the pinion 21 and its attached clutch member 25 running free on shaft 17 ; while for the larger coin the pinion 20 is thrust out of gear with the counter pinion and the clutch 27, 25 engaged and pinion 21 drives its counterpinion to set the shaft 28 and open the valve. 7 The clutch may be formed as a spring-urged tooth 25c in the socket 25 to engage a gear 27 formed on the shaft 17. A frame 19 secured to the coin carriage housing 9 serves as a mounting for the change gear mechanism, a bar 26 across it engaging a groove to prevent axial movement of the member 25. An alternative form of change gear is one in which the gear 27, Fig. 4, formed on shaft 17 slides in and out of gear with internal teeth formed on the hubs of pinions 20, 21, as shown in Fig. 4, the action of the spring 18 holding pinion 20 normally in mesh.
Patent GB-1168061-A (GB)
Title: An Improved Air-Operated System for a Motor Vehicle
Inventor: POLYAKOV VLADIMIR ALEXANDROVIC
IPC: F15B21/041
Filed: 1968-01-10
Abstract: 1,168,061. Air compression apparatus on vehicles. LVOVSKY AVTOBUSNY ZAVOD. 10 Jan., 1968, No. 1425/68. Heading B7H. An air compression system on a motor vehicle, particularly for operating brakes, suspension units and pneumatic door operators, comprises an air compressor 1, an oil and moisture separator 6 and air cylinders 2, 3, 4 supplied through non-return valves 14. The separator includes a filter 11 and is connected through passages 9 and 10 with a condensing drum 7. In a modification, Fig. 2, the filter and condensing drum are of unitary construction.
Patent GB-692619-A (GB)
Title: Improvements in or relating to manual starting devices for internal combustion engines
IPC: F02N3/04
Filed: 1950-01-20
Abstract: 692,619. Hand turning-gear. FICHTEL & SACHS AKT.-GES. Jan. 20, 1950 [Jan. 20, 1949], No. 1578/50. Class 7 (v). In a manually operable engine starting device comprising a starting shaft c coaxial with the engine crankshaft and movable axially in relation thereto, clutch members d. e on the starting and crankshafts respectively, and a helically toothed pinion b on the shaft c and permanently in mesh with a rotatable helically toothed starting segment a, there is provided means, such as spring f applying a braking action on the shaft c, whereby upon actuation of the segment a by a hand lever for example, the shaft c is moved to engage the clutch member d, e, the shaft c being moved in the reverse direction to disengage the clutch members when the crankshaft speed exceeds that of the starting shaft.
Patent GB-157923-A (GB)
Title: Method and apparatus for the production of twist drills
IPC: B21H3/00
Filed: 1921-01-10
Abstract: 157,923. Strasmann Prazisions-Werkzeug und Maschinenfabrik, A. Jan. 17, 1919, [Convention date]. Drills.-Twist drills are formed from round rod by rolling two longitudinal grooves and twisting the end of the rod as it leaves the rolls. The grooves are finished, after reheating the rod, by skew-rolling. Segmental rolls a, b preferably built up of several rings a<1>, a<2>, a<3>, Fig. 3, have a series of passes to form the longitudinal grooves in the rod while the holder c is held in the hand. The holder c has a nut g which is then clamped in an arm h, guided in or pivoted to the roller frame so that when in use the rod is introduced into the finishing pass or one identical therewith. As soon as the rod is gripped in this pass the holder c is started in its spiral movement by a handle d and the rod is twisted. The holder c may also be used during the skew. rolling.
Patent GB-327766-A (GB)
Title: Improvements in and relating to building blocks
IPC: E04B2/18
Filed: 1929-01-17
Abstract: 327,766. Ingram, A. Jan. 17, 1929. Blocks, special shapes of.-A building block comprises slablike front and rear portions connected by one or more substantially vertical webs having portions removed to provide intercommunicating air spaces. throughout the completed wall, the slab-like portions also being formed with frogs on their end and under surfaces. Fig. 8 shows two slabportions connected .by a single web 27 having an arched portion 23. The frogs 26 extend round three sides of each slab as shown. Fig. 4 showsa similar block with two webs spaced from the ends. Blocks with three webs also are illustrated,. and the webs in some instances may be slightly inclined to the vertical. For the end blocks of a structure, a plain web is arranged flush with one end of the slab-members, thus forming a: channel-section block.
Patent GB-1167934-A (GB)
Title: Apparatus for Carrying Devices for Use in Medical Treatment.
Inventor: NYROP MORTEN ERNST
IPC: A61G13/10
Filed: 1967-01-12
Abstract: 1,167,934. Elevated railways; supporting structures. SIMONSEN & WEELS EFTF. A.S. 12 Jan., 1967, No. 1699/67. Heading B7L. A support member 4, Figs. 1 and 2, for medical treatment apparatus, has a jaw to embrace a rail 1 mounted in horizontal position e.g. on a wall. The rail has an upper arcuatesection longitudinal groove 2 to receive a complementary-shaped portion of the member 4 and a lower rectangular-section longitudina groove 3 to receive the upper end 8 of a latch 7 movably carried by the member 4 and thus secure the member 4 to the rail. The latch 7 has lateral portions 11 urged downwardly by coil springs 7 and is resiliently urged upwardly by leaf springs 12 when the latter are engaged by a cam disc 13 pivoted in the member 4, at 14, and rotatable by an operating member 15. In the operative position shown, the disc 13 has passed a dead-centre position so that the springs 12 urge the member 15 into the operative position. The member 4 may be secured e.g. to a wall and carry the rail 1 which then supports medical apparatus.
Patent GB-102401-A (GB)
Title: Draught Excluder.
Inventor: TUDOR MATTHEW
IPC: E06B7/20
Filed: 1916-02-07
Abstract: 102,401. Tudor, M. Feb. 7, 1916. Draught-excluders.-In draught-excluders for doors and windows comprising hingedly-connected fixed and movable parts with a spring for raising the movable part when the door is open, the fixed part a is so constructed that the hinged part a<1> may be applied thereto in different positions, as shown in Figs. 1 and 2. When the space under the door is abnormal, the shorter face b may abut against the door, the wider face c then acting as a protection for a deeper hinged part.
Patent GB-490901-A (GB)
Title: Electrical measuring instruments
IPC: G01R13/00
Filed: 1938-01-19
Abstract: 490,901. Current and volt meters. GENERAL MOTORS CORPORATION. Jan. 19, 1938, No. 1781. Convention date, Sept. 20, 1937. [Class 37] A differential instrument comprises two field coils 42, 50 adjustably arranged in fan shape upon a frame 16, a pointer 76 pivoted at the intersection of the coil axes, and a resistor 54 mounted on an insulating strip 52 secured to the coil adjusting brackets 36, 46, the resistor being connected in series with one of the field coils. The terminals 6, 8 are insulated from the back-plate 22, terminal 6 being connected to one end of each coil through strip 29, rivet 18 and the frame 16. The other end of coil 50 is connected to resistor 54, finger 60, and is then earthed through the back-plate 22, the remaining connection from coil 40 being to terminal 8 by way of parts 62, 64. An insulating strip 26 on the back-plate is formed into a loop between the terminals 6, 8. The adjusting bracket 36 is of soft-iron and is connected to the frame 16 by a nut 38 and wide slot 40, a similar adjustment being possible with bracket 46 which is constructed of brass. The dial plate 67 is secured by posts 69 connected to lugs 66 on the frame 16, a further lug 68 providing the pivot bearing for the pointer movement.
Patent GB-1489602-A (GB)
Title: Sponge iron production
IPC: C21B13/00
Filed: 1975-03-12
Abstract: 1489602 Shaft furnaces FOSTER WHEELER Ltd 12 March 1975 [15 Jan 1974] 1786/74 Heading F4B [Also in Division C7] A shaft kiln 10 down which iron ore passes counter current to a stream of reducing gas (e.g. carbon monoxide and hydrogen) is provided with a manifold 48 and radial passages 50 through which fresh gas is introduced. Reaction products are withdrawn through off take 52 and after processing to remove oxidizing components at least in part reheated and returned to the shaft through inlet 75 at a level below that of the fresh gas inlet 50. A part of the treated gas may also be injected at the base of the reaction zone through inlet 84 to cool the sponge iron produced. Ore is supplied to the reduction zone, and sponge discharged therefrom, through sliding gates 16, 17 each incorporating a ram 22 sliding on plate 36. The shaft lining is protected by a striker plate 32 against which large lumps are crushed by the ram.
Patent GB-642782-A (GB)
Title: Improvements in or relating to circuits for demodulating frequency-modulated oscillations
IPC: H03D3/22
Filed: 1948-01-21
Abstract: 642,782. Frequency modulation. PHILIPS ELECTRICAL, Ltd. Jan. 21, 1948, No. 1845. Convention date, Jan. 24, 1947. [Class 40 (v)] In a mixing detector circuit for frequency modulated oscillations comprising two coupled oscillatory circuits 3, 4 tuned to the central frequency of the frequency-modulated signal, to the first of which the frequency modulated signals are applied, the variably phase-displaced signals, 90 degrees out of phase for the central frequency, being each appliedto one of two control grids 6, 5 of a mixer valve, a third circuit 8 tuned to the central frequency of the signals is coupled to the second circuit to improve by its damping the linearity of the detector. A formula for the coupling and damping is given.
Patent GB-1025127-A (GB)
Title: Apparatus for automatic assembly of components
Inventor: LITTLE IAN EDWARD
IPC: H01L21/00
Filed: 1965-01-15
Abstract: 1,025,127. Assembling a glass-to-metal seal. STANDARD TELEPHONES & CABLES Ltd. Jan. 15, 1965, No. 1875/65. Heading B8A. [Also in Division H1] The three components of a glass-to-metal seal are assembled together in the holes 4 of a jig 1 mounted on a vibrating table. The assembly comprises an eyelet 7 (Figs. 3a-3e, not shown), having a lug 8, an apertured glass disc 9 and vertical connecting leads 10. Each hole 4 in jig 1 includes a slot 5 and blind bottom holes 6. The leads 10 are introduced from vertical holes formed in a second jig to be mounted over the jig 1. Operation.-Jig 1 is vibrated and eyelets 7 supplied thereupon are caused by the vibration to drop into respective holes 4 and then to rotate so that the lug 8 of each eyelet is positioned in a slot 5. Surplus eyelets are removed. Glass discs 9 are then fed on to the vibrating jig 1 and slide into their respective holes 4 to be positioned on top of the respective eyelet. Finally, the second jig is mounted on jig 1, its leads 10 being already positioned in the vertical holes thereof. When the second jig has been secured to the first jig the two jigs are vibrated together to permit the leads 10 to fall downwards through the apertures of the glass disc 9, through the apertures in the bottom of eyelet 7 and to be received in the blind holes 6 formed in jig 1. When the second jig is removed the first jig 1, having an assembly mounted within each hole 4, may be heated so that the glass disc 9 of each seal fuses to form a seal.
Patent GB-654877-A (GB)
Title: Improvements in and relating to spindles for winding and twisting thread
IPC: D01H1/10
Filed: 1948-01-21
Abstract: 654,877. Winding and twisting thread. BERIA, A. Jan. 21, 1948, Nos. 1881 and 1882. Convention dates, Jan. 22, 1947, and April 12, 1947. [Class 120(ii)] A spindle for winding and twisting thread comprises. means for imparting to the thread a double twist as it is being wound on to a spool, the spool being loosely mounted on the spindle and carried along in rotation by the spindle through a slip, coupling. As shown in the embodiment of Fig. 2, the spindle 1 is driven through a wharl 26, 27 and drives an adjustable bladed wheel 22 and a thread guide 25. Supported on the spindle 1 by means of ball bearings is a member 20, which may be cylindrical or conical, and which carries the wind-on spool and is fitted with blades 21. Loosely mounted on the spindle 1 is a cage-like unit comprising a plate 14 and a spindle 17 reciprocated vertically through a rod 11. Fixed to the spindle 17 is a thread guide 18 spring-urged towards the package being wound. An adjustable spring-pressed drag may also be provided at 33. In a further modification, an adjustable perforated baffle may be positioned adjacent the blade 21, 22 so that the amount of torque transmitted may be varied. An anti-ballooning device may be included. In a further modification, Fig. 14, the plate 14 is not vertically reciprocated, but the thread guide 18 is reciprocated vertically by a disc 45 engaging in a slit 44 therein, the disc being moved upwardly and downwardly by an annular guide member 46. In a still further modification, the slip coupling may be of the magnetic kind.
Patent GB-1356705-A (GB)
Title: Cooling fan drivable from the crankshaft of an air-cooled piston  engine
IPC: F01P5/04
Filed: 1972-01-14
Abstract: 1356705 Fan driving gear KLOCKNERHUMBOLDT-DEUTZ AG 14 Jan 1972 [20 Jan 1971] 1987/72 Heading F1B Cooling fan drivable from the crank-shaft of an air-cooled piston engine, the fan having a drive shaft offset from the longitudinal centre axis of the engine crank-shaft and means for transmitting torque to the fan drive shaft, in which the said drive means are combined with the fan to form a constructional unit and comprise a coupling rod drive. The fan 5, 6 is mounted on a shaft 2 which runs in bearings 14, 15 in the fan casing and has an extension 16 on which two eccentrics 31, 32 are formed. The eccentrics are connected by respective coupling rods 29, 30 to eccentrics 33, 34 formed on a shaft 22 which is driven by gearing 20, 21 from the engine crank-shaft. The eccentrics 31 and 32 are angularly displaced from one another about the axis of the shaft on which they are formed by an amount less than 180 degrees. Out-of-balance forces are compensated by weights 39, 40, 41 and 42.
Patent GB-322128-A (GB)
Title: Improvements in sports seat sticks
IPC: A47C9/10
Filed: 1929-01-21
Abstract: 322,128. Collier, J. Jan. 21, 1929. Folding seats.-In a seat stick of the kind having a ground plate 1 detachably secured in position by means of spring-controlled trigger snapping into a groove 18 in the stick, the trigger 8 is pivoted to the plate 1, pivots in a plane at right angle to the longitudinal axis of the stick, and is provided with a projecting tongue 10 to engage the groove 18. The plate 1 may be formed with a boss 6, grooved at 7 to house the arcuate trigger, and with a cover plate 15.