baber/WOPTO huggingface dataset:
Patent GB-600695-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J29/70
Filed: 1945-11-09
Abstract: 600,695. Typewriters. PADDOCK, R. I. Nov. 9, 1945, No. 29884. [Class 100(iv)] Type-bar actions; letter-spacing mechanism; case-shift mechanism; key locks. - In typewriters wherein shift mechanism is provided to move either the paper carrier or the type, part of the linkage between the shift mechanism and the usual type-operated spacing- mechanism is locked against normal movement when the shift mechanism is in a non-fully operated condition whereby effective operation of the type-bars is prevented. As shown applied to a machine comprising a movable type-segment, type-bars 1 are mounted on a curved rod 2 carried by a vertically movable frame 4 actuated from a shift key 51 pivoted at 55 and linked to an arm 50 adapted to rock arms 45, 46 connected to supports 17, 18 on the member 4. The type-bars pass through slots 30 in a wall 29 on the member 4, and a boss 71 on each bar engages a curved plate 28 riveted to a honzontally-slidable tray 23 adapted to engage a lug 42 on a pivoted plate 41 so as to actuate a rod 59 connected to a pallet 60 engaging an escapement wheel 61 from which the spacing-mechanism is operated. The tray 23 is supported by a bolt 25 and by strips 21, 22 on a gate 20 pivoted to a U-bracket 19 fixed to the member 4, the connection between the tray and the strips comprising pivot screws 31, 32. The locking-device consists of a bar 63 secured to the machine frame by a clamp 64 and having tapered notches or perforations 65, 66 co-operating with a tongue 69 on a clip 67 secured to the tray by the screw 32, the latter passing through a slot in the clip which is adjusted so that in the proper upper and lower positions of the type segment the tongue enters one of the notches; otherwise, the tray prevents movement of the type-bars and the spacing- mechanism is not operated.
Patent GB-1197067-A (GB)
Title: Catalytic Coatings for Cooking Devices
Inventor: STILES ALVIN BARBER
IPC: B01J23/889
Filed: 1967-06-28
Abstract: 1,197,067. Self cleaning oven linings. E. I. DU PONT DE NEMOURS & CO. 28 June, 1967, No.29930/67. Heading F4W. [Also in Division C1] Cooking surfaces are subjected to treatment with a composition comprising 0À5-75% of a catalyst and 99À5-25% of an acid resistant enamelling frit having a softening point above 800‹ F., the catalyst being an oxide of Mu, Fe, Co, Ni, Mo, W or a mixture thereof, or Pt, Pd, Ag, Ru, Rh, Os or Ir, if desired supported on a rare earth metal oxide, Al 2 O 3 , MgO, SiO 2 , TiO 2 , ZrO 2 , CaO or Cr 2 O 3 , or a mixture thereof, which passes 40 mesh, so that cooking soils may be oxidized without subjecting the surfaces to temperatures above 800‹ F.
Patent GB-533680-A (GB)
Title: Improvements relating to resonant circuits
IPC: H01P5/10
Filed: 1939-11-13
Abstract: 533,680. Push-pull resonant circuit for energy transfer. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 13, 1939, No. 29985. Convention date, Nov. 12, 1938. [Classes 40 (iii) and 40 (v)] An arrangement for transferring energy by means of a push-pull circuit to a single-ended circuit 23, 25, Fig. 1, comprises a double-ended tuned anode circuit formed by three parallel conductors 16, 17, 18 connected together at one end 19 and fed from the other end by valves 11, 12 in push-pull, a coupling 26, 27 between one conductor 25 of the single-ended circuit and the connected end 19 of the conductors of the resonant circuit, and connections of equal length and surge impedance between the other conductor 23 of the single-ended circuit and plates 21, 22 capacity coupled with the outer conductors of the resonant circuit at points where the voltages are substantially equal and in phase. The length of the resonant circuit is an odd multiple of one quarter wave length. As indicated at AA, Fig. 2, the actual length is a little less than three-quarters of a wave length to allow for lumped capacities at the end.
Patent GB-1156315-A (GB)
Title: Improvements relating to Telemetry Systems
Inventor: DAVIES JOHN LLEWELYN
IPC: H04B5/00
Filed: 1965-07-15
Abstract: 1,156,315. Two-way transmission. ELECTRIC & MUSICAL INDUSTRIES Ltd. 15 July, 1966 [15 July, 1965], No. 29986/65. Headings H4R and H4U. In a transmission system for transmitting discrete frequency control signals to, and receiving acknowledgement signals from, a gantry crane over a single transmission channel, e.g. including an inductive transmission system, the transmitter 1 and receiver 2 at the control station are alternately connected by gates 3 and 4 to the transformer 7 and hence to the inductive coupling loop 22. On the gantry a transmitter 11 and receiver 12 are alternately connected by gates 13 and 14 to transformer 17 and hence to the inductive coupling loop 21. Pulse generators 9 and 19 operating gates 3 and 4, and 13 and 14, respectively, are arranged to operate at different frequencies, e.g. 30 c.p.s. and 60 c.p.s., so as to ensure the alternate connection of transmitter 1 to receiver 12 and transmitter 11 to receiver 2.
Patent GB-716310-A (GB)
Title: Tent
IPC: E04H15/32
Filed: 1952-11-27
Abstract: 716,310. Tents. LIDEN. O. G. A. Nov. 27, 1952 [Nov. 28, 1951], No. 30130/52. Class 20 (1) A tent comprises a collapsable framework, Fig. 2, and a one-piece tent cloth 8, Fig. I, which has three flaps forming a releasable closure means for the entrance opening to the tent, two flaps 11 extending upwardly from the base of the tent and a third 12 extending downwardly from the top of the tent, the upper portions of the flaps 11 diverging to form a triangular shaped aperture which the flap 12 is adapted to close. The frame is formed in two halves each comprising legs 1 and horizontal upper members 3 and 4 connected by connecting e'ements 2, the legs 1 and the member 3 being rigidly secured and the members 4 pivotally secured to the elements 2. The two halves of the frame are connected together by engaging the members 4 in sockets 5. A detachable ridge-piece 10 is supported on the members 4. The flaps 11 and 12 may be secured from inside the tent by wires or ropes which pass through eyes attached to the tent cloth.
Patent GB-617948-A (GB)
Title: Improvements in or relating to the recording or reproduction of sound
IPC: G03B31/02
Filed: 1946-10-09
Abstract: 617,948. Sound-film apparatus. RILEY, A. N. Oct. 9, 1946, No. 30163. [Class 40 (ii)] In an apparatus for reproducing sound-films, particularly talking-picture films, the film 4 is steadied at the translation point by passing it over a drum 10 which is freely mounted on ball, roller, or similar bearings, and filled with a viscous substance such as grease, in order to exert a drag on the roller 10 and thereby produce a uniform motion. The roller 10 has a hollow end part 11 which is crowned on the periphery so that the film 4 rides centrally thereon, leaving a narrow strip 4<SP>1</SP>, containing the sound track, overlapping the end of the roller 10. A centre member 16 contains the photo-sensitive cell and carries a sleeve 15 forming the stationary part of the ball-race. Circular plates 18, 18<SP>1</SP>, secured to the roller 10, are provided in order to retain the viscous material. The film is drawn over the roller 10 by a driving member 8, and is held in contact with the roller 10 by roller 19, 20 carried on spring-loaded arms.
Patent GB-872405-A (GB)
Title: Improvements in means for carrying spare wheels on motor road vehicles
Inventor: GARRETT HARRY BRUCE
IPC: B62D43/00
Filed: 1958-09-22
Abstract: 872,405. Spare-wheel carriers. KENNEDY & KEMPE Ltd. Sept. 21, 1959 [Sept. 22, 1958], No. 30192/58. Class 136(1). [Also in Group XXXIV] In a spare-wheel carrying means of the kind in which the wheel 27 is detachably secured to a rotatable drum 20 and supported upon a pivoted carrier beam 10 for luffing movement over the side of the vehicle, a wire rope 22 anchored upon the carrier beam being engaged around the drum and wound thereon or paid out therefrom as the wheel is rotated for raising or lowering it from or to the ground, the drum 20 is provided with brake shoes 33, 34 normally resting loosely in contact with it but controlled by a pawl 35 mounted on the carrier beam 10, the rotation of the drum 20 in the direction for lowering the wheel causing the pawl 35 to engage the brake shoes 33, 34 thereby stopping their rotation and causing them to expand outwardly into frictional contact with the drum to resist the descent of the wheel. During rotation of the drum in the opposite direction, for raising the wheel, the pawl 35 trails idly over the brake shoes whilst they revolve in loose contact with the drum. The beam 10 is held in carrying position by a spring latch 28 which may be released by a pull on a hand-grip lever 30. The lever 30 is also used to start to lower the wheel by swinging the beam 10 outwards. The brake shoes 33, 34 will not immediately make frictional contact with the brake drum 20 because the wheel will usually have to make part of a revolution before the pawl 35 can engage between the shoes. The pawl 35 is controlled by a tension spring 48 anchored to the carrier beam, and a stopper 49 projecting from the beam limits the movement of the pawl in the direction of the force exerted bv the spring. The brake shoes 33, 34 are fitted between ribs 42, 43 provided internally of the drum 20 (Fig. 3). There may be two carrier beams 10 arranged to support two spare wheels coming down on opposite sides of the vehicle. Specification 338,670 is referred to.
Patent GB-240332-A (GB)
Title: Improvements in and relating to appliances for withdrawing blood
IPC: A61B5/15
Filed: 1924-12-16
Abstract: 240,332. Kantorowicz, E. Dec. 16, 1924. Pumps, syringes, and like appliances; cannulas.-An appli. ance for withdrawing blood from the veins comprises a recipient glass tube a fitted with a cap b which is provided with an air hole b' the top of the cap terminating in a hollow cone c to which may be applied a hypodermic needle d. The cap b fits upon a ground surface or has a slotted flange to allow for variations in the sizes of the glass tubes. In using the appliance, the needle is introduced into the vein and the blood is allowed to flow by its own pressure into the tube.
Patent GB-832330-A (GB)
Title: Improvements in or relating to traffic analyzers for recording the velocity of vehicles on a roadway or the like
IPC: G01P3/66
Filed: 1958-09-22
Abstract: 832,330. Electrical measuring systems; signalling passage of vehicles. TELEFONAKTIEBOLAGET L. M. ERICSSON. Sept. 22, 1958 [Sept. 23, 1957], No. 30220/58. Classes 40 (1) and 118 (2). [Also in Groups XXXVI and XL (c)] Apparatus for determining the speed of vehicles comprises two microphones, each attached to a wire stretched across a road and feeding an electronic relay which is actuated when the output from the appropriate microphone exceeds a predetermined value and means for determining and recording the interval between the times of operation of each relay. As shown, each microphone M is fitted into a cylindrical holder 26 soldered to a bar 23. The ends of the bar 23 protrude via rubber grommets 24 from a housing 22. Wires T1, T2 are stretched across a road V, the left-hand end of each wire being anchored to one side of the road and the right-hand end to a hook 25. Springs (not shown) are stretched between lugs 27 and the right-hand side of the road. When the front wheels of a vehicle pass over wire T1 a signal is generated by microphone G1 and fed via an amplifier F1 and rectifier K1 to trigger an electronic relay S1 which starts a timer R. When the front wheels pass over the second wire T2 the second electronic relay S2 is similarly operated to stop the timer R. Alternative timers specified comprise means for counting the cycles of a crystal controlled oscillator or a constant speed drum providing a punched card or tape output. The electronic relay S may use a thyratron as in Fig. 3 (not shown), or a transistor bi-stable circuit as. in Fig. 4 (see Group XL (c)).
Patent GB-489258-A (GB)
Title: An improved permanent magnet unit comprising material of high coercive force
IPC: H01F7/02
Filed: 1937-11-04
Abstract: 489,258. Supply meters. LANDIS & GYR AKT.-GES. Nov. 4, 1937, No. 30235. Convention date, Nov. 23, 1936. [Class 37] [Also in Group XXXV] A permanent magnet unit particularly for a measuring instrument, comprises a part 5 of high coercivity material and a complementary part 8 of low coercivity material mounted upon a holder 1 adapted to be readily adjusted in position, one of the parts, e.g. the part 5 being clamped upon the holder, and the other part being secured to the holder by projecting into it. The holder has a discshaped bottom part 2 with a central screwthreaded hole 3 for securing purposes. The holder is preferably moulded or cast and the part 8, which may be of iron, has holes 9 into which the holder material enters. The part 5, preferably made of cobalt steel, embraces a rod 4 and is clamped between the holder and a bent transverse bar 6 by riveting or by means of a screw and nut.
Patent GB-615298-A (GB)
Title: Improvements in or relating to articulated railway vehicles
IPC: B61F5/44
Filed: 1946-10-10
Abstract: 615,298. Articulated railway trains. PATENTES TALGO SOC. ANON. Oct. 10, 1946, No. 30310. Convention date, April 12. [Classes 103 (iv), 103 (v) and 103 (vi)] In a train of articulated cars a, Fig. 6, each car has only a single pair of wheels 20 and is coupled to its adjacent car by a central connection c and two laterally spaced connections d, Fig. 2, these connections being such as to keep the ends of the cars in alignment, as in Fig. 4, so that the wheels always meet the track at a negative angle of attack, thereby reducing the danger of derailment. As shown in Fig. 8, the wheels 20 run on axles 20<SP>1</SP> extending between sleeves 21 resiliently mounted on vertical columns 22, secured within box-like structures 17 at each side of the car end. As shown in Fig. 10, the central connection c comprises a vertical pivot c<SP>1</SP> in a yoke 26 which is coupled to a pin 33 and a flanged bearing 28, which are mounted on pivots 35 and 30 respectively in the ends of adjacent cars, the connection c thus restricting lateral displacements of the car ends to angular movements about the pivot c<SP>1</SP>. As shown in Fig. 12, the connections d comprise pivot pins 41 and 48, mounted vertically in rubbercushioned bearing sleeves 42 and 49, secured to the car frames 13. The pin 42 has a longitudinal extension d<SP>1</SP> able to slide in a bearing sleeve 50 secured to the pin 48 so that these connections d prevent disalignment of the car ends vertically. To provide the greatest possible safety factor against derailment, the length of each car is made between three and six times the wheel gauge. Specification 579,476 is referred to.
Patent GB-1391939-A (GB)
Title: Helicopter rotor blades
IPC: B64C27/467
Filed: 1972-06-29
Abstract: 1391939 Helicopter rotor blade UNITED AIRCRAFT CORP 29 June 1972 [22 Sept 1971] 30378/72 Heading B7W A helicopter rotor blade has root, central and tip portions, the central portion having an aerofoil cross-section defined by the equations where X, Y U , Y L  are the chord station and upper and lower surface co-ordinates, C is the chord and t the maximum thickness. This crosssection may be used throughout the span, but preferably the root portion will be thickened; the blade may be of constant chord, or the chord may decrease in the tip portion, the thickness then varying in accordance with the equation.
Patent GB-1110275-A (GB)
Title: Improvements in or relating to bakery products
IPC: A21D2/18
Filed: 1965-07-16
Abstract: In the production of fat-free bakery products such as cakes, pastries, patisserie, and other fine bakery goods, a thickening agent is incorporated in the dough in an amount of 0.1-0.8% wt. Thickening agents are defined as physiologically compatible organic high molecular weight substances which swell by absorbing liquid and thus become transformed into homogeneous viscous colloidal solutions, for example cold gelatinisable starch, alginates, carragesnates, agar-agar, locust bean flour, pectin, guar flour, tragacanth, gum arabic, and cellulose ether.  The thickening agent may be added to a dough component, for example flour, starch, starch degradation products, saccharose, polyhydroxy compound, milk powder, or protein, prior to mixing of the dough.
Patent GB-881238-A (GB)
Title: Improvements in or relating to spring catch fastener devices for windows and the like
IPC: E05C1/14
Filed: 1958-09-23
Abstract: 881,238. Latches. MULLINS, F. Dec. 21, 1959 [Sept. 23, 1958], No. 30384/58. Class 44. A fastener device for a sliding window 31, for example, comprises a spring-loaded sliding bolt 18 which is connected to an operating lever 25 by means of a J-shaped rod 17 guided in holes 16, 23 in a flange 13 of a member 10 which is fixed to the window 31 and in which are disposed the bolt 18 and its spring 19; the lever 25 is formed with a handle 26 one end 30 of which bears against the flange 13 when the bolt is in its operative position in which it engages within a hole 32 in an adjacent window frame surround 33, so that the handle can be operated in one direction only. A plurality of holes 32 may be provided in the adjacent window frame surround 33 for selective engagement by the bolt 18. The rod 17 may be U-shaped. Specifications 354,142 and 442,306 are referred to.
Patent GB-645525-A (GB)
Title: Roof ventilator
IPC: F24F7/02
Filed: 1948-11-23
Abstract: 645,525. Ventilators. BRYCE, A. Nov. 23, 1948, No. 30461. [Class 25] A roof ventilator comprises an openended cylinder 1, to one end of which is connected by pieces 3 a cone 2 of less diameter than the cylinder with its apex lying outside and at the other end two co-axial tubes 4, 5, are connected by brackets 6 these mating with a tubular socket opening into the building.
Patent GB-298790-A (GB)
Title: An improvement in or relating to the pressing of fabrics
IPC: D06C15/10
Filed: 1927-11-14
Abstract: 298,790. Heaton, A. D., and Lang, J. O. Nov. 14, 1927. Press papers and boards, manipulating.-Press papers b are heated by means of electric "papers" c while on the papering table a and before insertion into the fabric pile. During the packing operation, each electric " paper," as it is uncovered is raised, turned, or slid out of the way. As shown the " papers " c are balanced by weights g and carry wheels d<1>, e<1> engaging vertical guide posts f. An angular plate h carrying a third runner h<1> at a lower level than the wheels d<1>, e<1> and engaging guides i keeps each " paper " c horizontal.
Patent GB-1009078-A (GB)
Title: Diaphragm pumps
IPC: F02M1/00
Filed: 1964-08-04
Abstract: 1,009,078. Reciprocating pumps. GENERAL MOTORS CORPORATION. Aug. 4, 1964 [Aug. 1, l963], No. 30545/64. Heading F1A A cam-actuated diaphragm fuel pump comprises a diaphragm 36 clamped between a body 16 and a sheet metal cover 43 secured together by crimped interengaging frustoconical surfaces 42<SP>1</SP>, 46<SP>1</SP>. Inlet and outlet valves 48, 50 are secured to cover 43. Reciprocation is effected by a cam through two-part lever 14, the delivery stroke being effected by a spring 38.
Patent GB-275061-A (GB)
Title: Improvements in toy guns
IPC: F41B7/00
Filed: 1926-12-02
Abstract: 275,061. Stadler, G. Dec. 2, 1926. Guns; spark-producing toys.-In a toy gun of the type in which a projectile operates a sparkproducing device in imitation of the flash of a gun, a piece of cerium stone adapted to be frictionally engaged by a roughened part of the projectile is mounted on the end of the barrel by means of a metal sleeve, which is a loose fit on the outside of the barrel and is provided with a notch or cavity engaging a projection on the barrel. As shown in Fig. 1, the stone 2 is carried by a sleeve 1 that fits loosely over the barrel and is retained thereon by the engagement of a projection 3 on the barrel with a groove 5 in the sleeve. In a modification, Fig. 3, the stone 2 passes partially through a slot in the barrel and is held in place by a sleeve 1 slidable on the barrel. The projectile 6 has a grooved surface 7 for engagement with the stone. Specification 275,665 is referred to.
Patent GB-652343-A (GB)
Title: Telemetric system
IPC: G05D3/12
Filed: 1948-11-25
Abstract: 652,343. Telemetering systems. BENDIX AVIATION CORPORATION. Nov. 25, 1948, No. 30634. Convention date, Jan. 30. [Class 40 (i)] [Also in Group XL (c)] A telemetering system comprises a " Magnesyn " (Registered Trade Mark) transmitter 11 having a permanent magnet rotor 19 and an A.C. energized stator 16, whereby second harmonics are induced in the stator and passed to the receiver stator 46 through a bucking transformer 50, e.g. as described in Specification 590,564, which eliminates the fundamental frequency. The receiver rotor 47 is driven by a servomotor 12 and the system is characterized by the provision of a further source of A.C. at the second harmonic frequency which is used to synchronize the fundamental frequency source, and arranged with means for both purifying and rectifying the amplified error signal voltage to provide a unidirectional control voltage corresponding to the second harmonic error signal which is used to modulate a voltage at the fundamental frequency to control the servomotor. The second harmonic frequency is generated by an electron coupled oscillator 76 coupled to an oscillator 35 generating the fundamental frequency over an adjustable phase-shifting circuit 110 and resistor 114 so that the two generated frequencies are locked but their phase relationship may be adjusted. The transmitter 11 is energized from the oscillator 35 through an amplifier 38 and transformer 40. The error signal at the second harmonic frequency developed in the receiver rotor 47 is fed through a band-pass filter 69, 70, 71, which attenuates all other frequencies and through amplifier stages 67, 68 to a phase-sensitive bridge rectifier 77, 78, 79, 80 energized from the second harmonic oscillator 76. The phase shifter 110 is set so that load resistors 141, 143 across the bridge output develop a unidirectional signal potential dependent in magnitude and sense on the magnitude and phase sense of the error voltage relative to the oscillator 76 output, and spurious out-of-phase components of the error-signal are eliminated. The rectified signal is passed through a rate network 120 which adds a first derivative component and is applied differentially to the grids of modulator tubes 125, 126. The tube anodes are fed with D.C. derived over line 32 from mains rectifier 25 and smoothing circuits 28, 30, and also with A.C. at the fundamental frequency from the oscillator 35 over line 155. Normally in the absence of any error signal the tubes 125, 126 are balanced. An error signal results in an output of the appropriate phase sense from transformer 152 which is amplified in the push-pull stage 161, 162 and applied over transformer 167 to the control phase 169 of the servomotor 12, the other phase 170 of which is fed directly from the transformer 40 supplying the transmitter 11 at the fundamental frequency. The necessary 90 degrees phase shift in the current in the motor control winding is introduced by supplying the anodes of the modulator tubes 125, 126 through a phaseshift circuit P. The servomotor 12 may also drive a repeater transmitter 14.
Patent GB-1039516-A (GB)
Title: Improvements in and relating to non-woven fabrics
IPC: D04H1/74
Filed: 1962-08-09
Abstract: A non-woven fabric of the type comprising fibres (e.g. in the form of a cross laid carded web) bonded by an adhesive, is stretched to a point less than breaking point (e.g. 3-90% of its breaking extension) so that the softness, drape and handle of the fabric is improved.  It is preferably stretched in two directions at right angles, e.g. by being underfed to a clip stenter.  The fabric is preferably held in its stretched state for a few minutes.  Examples are given to show how the elasticity and stiffness of fabrics are improved by the above treatment.  The fabrics specified are viscose rayon carded web cross laid and bonded with a synthetic nitrile rubber binder and a similar web made from nylon and viscose rayon.