baber/WOPTO huggingface dataset:
Patent GB-942847-A (GB)
Title: Improvements in or relating to transmission networks
IPC: H04B3/14
Filed: 1961-06-14
Abstract: 942,847. Attenuation equalizers. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 14, 1961 [June 17, 1960], No. 21470/61. Heading H3U. An attenuation equalizer comprises a stepwise adjustable parallel LC circuit consisting of a coil which has at least four connection points for the capacitor which divide the turns of the coil in the ratio 1 : a a<SP>2</SP> where a is given by 1 +a = a<SP>3</SP>, i.e. a = 4/3. As shown, the equalizer consists of a T-network of resistances having the configuration shown, the series and shunt branches being provided with terminals, respectively 13, 12, across which are connected the adjustable LC circuits. These provide respectively increases and decreases in attenuation at a number of fixed resonance frequencies and the magnitudes of the increase and decrease at each frequency are equalized by means of the variable resistors 18, 19. Each LC circuit consists of a coil 14 having terminals 20-23 the number of turns between successive terminals 20-21, 21-22, 22-23, 20-22 being w, aw, a<SP>2</SP>w and (1+a)w + a<SP>3</SP>w. This division further results in a number of turns a<SP>4</SP>w and a<SP>5</SP>w respectively between terminals 21, 23 and 20, 23. Thus, the capacitor 15 may be connected across six different pairs of terminals on the coil 14 to obtain a series of increasing resonance frequencies F 6  . . . F 1  which, being proportional to the numbers in the sequence 1, a<SP>2</SP> . . . a<SP>5</SP>, are equidistantly spaced on a logarithmic scale. With a fixed connection for the capacitor 15, the resonant frequency remains constant and independent of the manner of connection between terminals 20-23 and terminals 12 or 13. However, it can be shown that the six possible modes of connection provide six bandwidths B 1  . . . B 6  proportional to the numbers in the sequence 1, a<SP>2</SP>, a<SP>4</SP> . . . a<SP>10</SP> and thus equidistantly spaced on a logarithmic scale. Fig. 2 shows the equalization curve obtained when the shunt branch is resonant at F 2  and the series at F 5 . A finer division of the total bandwidth of the network into 16 resonance frequencies may be obtained by the use of a further shunt capacitor 24 of value C/a<SP>2</SP> where C is value of the capacitance 15. The Specification gives a table showing the necessary connections. The bandwidth of the whole network may be extended indefinitely by providing further terminals 12, 13 in the shunt and series branches together with corresponding further adjustable LC networks. A # network can be used instead of a T network.
Patent GB-745255-A (GB)
Title: Improvements relating to variable speed hydraulic gearing
IPC: F16H39/36
Filed: 1953-08-04
Abstract: 745,255. Hydraulic couplings. KLATTE, T. Aug. 4, 1953 [Aug. 6, 1952], No. 21478/53. Class 69 (2). A hydraulic variable-speed gear comprises a pump 7 and a motor 17, both of the eccentric gear-wheel type, and a common rotatable control and distributing valve 10 having a duct 11 connecting the outlet of the pump to the motor inlet and a duct 21 which communicates with ports 22 in the casing which ports lead to an oil cooler; the outlet from the cooler leads to ports 23 in the casing which ports communicate with a further duct 12 in the valve 10 communicating with the inlet to the pump. The ducts 11, 21 have relief valves 66, 67 which may be raised by a lever 74. For braking purposes the port 22, may be closed by a rotatable ring valve. The valve 10 is controlled by a fly-weight governor and a servomotor which may be put out of action and separately supplied with pressure liquid to reverse the motor and subsequently to return it to forward running. An auxiliary gear-wheel pump supplies pressure for the servomotor and make-up liquid.
Patent GB-137095-A (GB)
Title: Improvements in or relating to internal combustion rotary motors
IPC: F02C5/00
Filed: 1918-12-24
Abstract: 137,095. Smith, A. L. Dec. 24, 1918. Jet-wheels; working-fluid supply-Relates to an internal-combustion turbine wherein a body of liquid is forced by periodic explosions to act alternately on two jet-wheels. Twin rotors having blades 15, Fig. 9, are housed in casings L, R connected by passages having valves A, B, and an explosive gas is injected into a space 16 within a liquid annulus formed by the rotating blades 15 in the casing R, and by its explosion ejects the liquid through the valve A into the casing L, where it rotates the blades 15 and compresses a previously-admitted charge of explosive gas into a space 17, Fig. 10. The valve A then opens the chamber R to the atmosphere,and, after the exhaust is completed and both valves A, B are closed, a charge of gas is introduced into the casing R. The valve B is then opened so as to lead back into the chamber R the liquid ejected from the chamber L by the explosion in the space 17. The rotors are geared to a common gearwheel on a shaft carrying the cam for actuating the valves A, B. Each bladed rotor 22, Fig. 2, is secured to a hollow shaft 18 having an inlet valve 25 connected to a carburettor and an adjustable sparking-plug 27 adapted to close the ports 24 and exclude moisture when the motor is shut down. The exhaust is led into a condenser, and the condensed steam is returned to the casings.
Patent GB-418851-A (GB)
Title: Hair driers
IPC: A45D20/22
Filed: 1933-08-02
Abstract: 418,851. Centrifugal fans. DEHN, F. B., 103, Kingsway, London.-(Shelton Co., W. G. ; 1709, Locust Street, St. Louis, Missouri, U.S.A.) Aug. 2, 1933, No. 21714. [Class 110 (i).] A hair drier includes a centrifugal fan 6 comprising shallow curved blades 15 secured by means of ears 15<a> to a driving plate 13, on the hub 14. A ring 16 is secured to the forwarded edges of the blades. The latter are of concavoconvex form so that reversal of the motor varies the rate of air circulation, for example, counter-clockwise rotation of the fan, Fig. 2, gives a rate substantially twice that for clockwise rotation.
Patent GB-315713-A (GB)
Title: Improvements in connection between the ribs and spars of metal surfaces of aircraft
IPC: B64C3/00
Filed: 1929-07-15
Abstract: 315,713. Messerschmitt, W. July 16, 1928, [Convention date]. Planes, construction of; framework. - The transverse ribs of metal wings and control surfaces are connected to the longitudinal spars by means of lugs or tongues formed thereon which project through slots made in the spar web, and are secured to the side of the web away from that at which the rib is situated. One such arrangement is shown in Fig. 2 in which a tongue a<1> of a rib a is entered through a slot b<11> in a spar b and is secured to the spar web b<1> by riveted angle plates c, c<1>. In another arrangement, the tongue a<1> may be subdivided into a number of single lugs a<11>, a<111> which are entered through corresponding slots in the spar web and are secured as shown in Fig. 3.
Patent GB-532813-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04M3/36
Filed: 1939-07-26
Abstract: 532,813. Automatic exchange systems. POLLAK, J. E. (Associated Telephone & Telegraph Co.) July 26, 1939, No. 21783. Addition to 516.409. Drawings to Specification. [Class 40 (iv)] The system described in the parent Specification is modified to provide for separately recording the particulars of ineffective calls. Different indications are made to distinguish between calls that are not answered and wrong number calls which are abandoned shortly after reply.. As described, the toll control circuit (Figs. 32-41) has access over the switch CF to two groups of printer-controllers, and hunting takes place over one or the other according to the condition of a relay which operates after the timing switch T has recorded the first 3-minute period, either automatically after 2 minutes or on release by the calling party. Alternatively, the printer-controller may be controlled from the toll control circuit to select different printers. On the receipt of the reply signal, the switch IP times a "grace" period of 7 seconds, after which it stands in normal position. The switch T then advances to record the first 3-minute period, and timing continues as in the prior arrangement. On an ineffective call, which is abandoned before the advance of T, the switch OP transfers the digit O to the relay group XV (which registers the tens digit of the duration), but the record is nullified if no reply is received, since the locking circuit includes a front contact of the backbridge relay. On a wrong number call, however, the duration digit O is printed. According to the Provisional Specification, incomplete calls as well as ineffective calls may be recorded. Specification 516,348 is referred to.
Patent GB-653710-A (GB)
Title: Improvements in or relating to stop devices in web feeding mechanism
Inventor: BRADLEY BASIL EDWARD
IPC: B41L47/24
Filed: 1948-08-18
Abstract: 653,710. Feeding and registering webs. GALE & HAYCRAFT, Ltd. Aug. 18, 1948, Nos. 21843/48 and 20938/49. [Class 100 (i)] An intermittently fed web is longitudinally registered by limiting the movement of the feed member by a movable stop locked in the required position by a web-controlled electromagnetic wedging device. As applied to the paper feed device described in Specification 648,366, the cross bar spanning the clamps 41 shown in Fig. 2 thereof carries a resilient finger which penetrates spaced slots in the paper web to contact a plate beneath the web thereby energizing a solenoid ; the reciprocating carriage front stops (24 in the above Figure), are replaced by a pivoted lever 40, Fig. 5, or a slidable bar 68, Fig. 6, moved forward by the carriage against a spring 44, 75 until locked by a ramped slide bar 47 or a roller 72 connected to the core of the solenoid ; in Fig. 5, the bar 47 moves transversely between the forward end 43 of the lever 40 and a fixed shoulder 48 ; in Fig. 6 the roller 72 moves between the bar 68 and an inclined wall 70 to press the bar 68 against a wall 69. The rearward movement of the parts 40, 68 is limited by a pin 45 fixed in the base 39, 65 which is secured to the front cross bar of the carriage track frame. A delayed-action circuit breaker may be included in the solenoid circuit to prevent overheating. According to the first Provisional Specification the part 43 is modified to coact with a ramped slide bar 47 arranged front-rear ; according to the second Provisional Specification the core of the solenoid 56, Fig. 6, may push the roller 72 instead of pulling it into locking position ; according to both Provisional Specifications the securing bolts of the bases 39, 65 may pass through slots therein.
Patent GB-601177-A (GB)
Title: Improvements in or relating to fluid sealing devices for shafts
IPC: F16J15/3236
Filed: 1945-08-25
Abstract: 601,177. Shaft seals. HILLMAN, J. L. Aug. 25, 1945, No. 31864. [Class 122 (v)] [Also in Group XXXIV] A low-pressure seal for members rotating relatively to one another at high speeds, comprises an annular mounting 4 floated by antifriction means 4a on a concentric support 1 secured to one member such as a housing 2 and a V-section sealing ring 6 secured by its base 9 to the mounting 4 with one divergent flange 8 engaging the support and the other flange 7 the other member such as a shaft 3. In the internal seal shown, the opposed faces of the support and mounting are cut away to accommodate the thickened end of the flange 8 and the reinforced edge of the flange 7 is pressed against the shaft 3 by a garter spring 10 ; the base of the sealing ring is clamped to the mounting 4 by a ring 14. The device may be applied to an external seal and the mounting 4 may carry two opposed sealing rings.
Patent GB-295026-A (GB)
Title: Improvements in or relating to steam plants with several heat accumulators
IPC: F01K3/12
Filed: 1928-07-27
Abstract: 295,026. Ruthsaccumulator Aktiebolaget. Aug. 5, 1927, [Convention date]. Steam regenerative accumulators.-To ensure uniform charging and discharging of a number of accumulators S1 receiving excess steam from a boiler K during light loads and supplying steam to an engine T during heavy loads, they are charged and discharged through pipes L, E not dir.ectly connected to one another, and valves A1 are fitted in the discharge branches to prevent the passage of steam from one accumulator to another during charging. The shut-off valves Al are opened simultaneously under the control of the engine governor Z. The shut-off valves mav he replaced by non-return valves and de Laval nozzles, which prevent priming upon a sudden starting discharge. The shut-off valves mav be automatically closed by a device operated when the discharge pipe is ruptured. The branches may bend upwards above the highest water level in the accumulators to prevent water from being forced from one accumulator to another during discharge.
Patent GB-475982-A (GB)
Title: Improvements in or relating to nut-tapping machines
IPC: B23G1/18
Filed: 1936-08-08
Abstract: 475,982. Tapping nuts. ACCURATE MACHINERY DEVELOPERS, Inc. Aug. 8, 1936, No. 21907. Convention date, Aug. 8, 1935. [Class 83 (iii)] A nut-tapping machine comprises a stationary tap 11, Fig. 2, a nut-driving spindle 16, having a longitudinal bore, which receives the tap and through which the nuts are moved lengthwise of the tap, and having lands 19 arranged concentrically around the tap to engage the sides of the nuts, and also having passages 18 extending from its bore to its periphery through which chips may pass, and a rotary driving head 23 on which the spindle is mounted and which is provided with a flaring bore from which chips are discharged by the action of centrifugal force. The nuts are fed along a guide at rightangles to the spindle of the tapper and are pushed into the driving spindle by a hollow member 14, shunting pins 21 serve to bring the nut into alignment with the driving lands which engage the rear sides of the nut corners, Fig. 1. The driving head 23 is mounted in a single-row ball bearing and driven by a chainbelt 35. The outwardly flaring bore 25 of the head directs the chips to a casing 41 integral with the housing 10, a spout 42 serving as an outlet for coolant which is supplied through the hollow pusher 14 and the pipe 26. The shank 43 of the tap is alternately held at different points to enable the nuts to move along the tap.
Patent GB-155342-A (GB)
Title: Improvements in combined pendulous table and chairs
IPC: B63B29/04
Filed: 1919-09-05
Abstract: 155,342. Dmitrieff, V. N. Sept. 5, 1919. Self-levelling apparatus.- Comprises improvements in combined self - levelling tables and chairs in which the chairs move with the table and are supported therefrom. A table 25 suspended from a universal joint 15 is fitted beneath with a longitudinal bar 29, which carries brackets 31 extending down wardly and outwardly and supporting chairs 43 at their outer ends. The brackets are adjustable longitudinally, being clamped in position by screws 32. The chairs may also be adjusted transversely of the table, being movable on rollers 39 engaging recesses 42 in plates at the sides of the chairs.
Patent GB-712121-A (GB)
Title: Gripper mechanism for use in conjunction with fork lift trucks
IPC: B66F9/18
Filed: 1951-09-20
Abstract: 712,121. Fork lift trucks HOPYARD FOUNDRIES, Ltd., and WRIGHT. F. V. Sept. 19, 1952 [Sept. 20, 1951], No. 22037/51. Class 78 (3) In a fork lift truck the fork is replaced by a gripping device comprising a pair of arms 9 pivoted at 8 on a pair of brackets 6 secured to the usual lifting carriage 5, a pad or spud 10 secured to the lower end of each arm and a hydraulic thrustor 11 pivoted to the upper ends of the arms and adapted to cause the pads or spuds to engage or disengage the load.
Patent GB-674799-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B17/00
Filed: 1950-09-07
Abstract: 674,799. Vehicle wheels. NOBLET, H. Sept. 7, 1950, No. 22096/50. Class 144 (i). A shock-absorbing wheel particularly for use on rail vehicles, but stated to be adaptable for use on endlesstrack or other heavy-transport vehicles, comprises a pair of resilient rings 10 of generally S-section clamped, under compression by bolts 28, 29, between corrugated flanges 2, 5 and a profiled web 16 extending respectively from the wheel hub and the rim 1. The outer peripheries of the rings 10 engage coned surfaces 9, 18 on the rim and hub-flanges respectively, the inner peripheries being seated on corresponding surfaces 8 at the base of the flanges.
Patent GB-262184-A (GB)
Title: Improvements relating to knitted stockings
IPC: D04B1/26
Filed: 1925-09-04
Abstract: 262,184. Cross, W., (Burson Knitting Co.). Sept. 4, 1925. Stockings.- In stock ings constructed of plain 3 and tuck stitches 9, certain of the tuck stitches are ravelled . or laddered to produce openwork which process is carried out to form a stocking having a foot portion with solid bottom and toe and a leg portion in which the openwork stripes extend downwardly, as shown, over the front of the foot portion and terminate at the rear portion 14 of the stocking at progressively increasing distances above the foot. The laddering is produced by stretching the fabric, such as, for example, an operator running his hand up the inside of the leg after the stocking is knitted. To limit the run of the ladders 11, certain of the stitches, as at 15, are anchored by sewing or other means.
Patent GB-752168-A (GB)
Title: A process for producing cast iron
IPC: C21C1/00
Filed: 1954-07-29
Abstract: Cast iron is produced by adjusting the charge composition with respect to graphitic carbon content and carbon equivalent to give a defined constitutional carbide value, melting the charge, and graphitising with an agent consisting of a mixture of a silicon alloy and a metal fluoride.  The graphite solution index (per cent graphite carbon + 1/10 of the carbon equivalent) to give a desired constitutional carbide value may be found from Fig. 1 (not shown) and the charge adjusted to give the graphite solution index required. From Fig. 2 (not shown) the chemical change ratio [(Si loss per cent X3)+ (Mn loss per cent X 2)-(C gain per cent)] may be found which will give the required processed carbide value. The carbide values may be obtained by the method described in Specification 590,344. The alloy used in the graphitising agent may be silicon alloyed with an alkaline earth metal or Fe Si, Zr Si, Ti Si, Ni Si, Li Si, and Mg Si and the fluoride may be that of Mg, Na, Al, Ca, or K.  A preferred graphitising agent comprises Ca Si and Ca F2.  Specification 727,707 also is referred to.
Patent GB-316185-A (GB)
Title: Improvements in or relating to electro-optical systems and apparatus therefor
IPC: H04N3/04
Filed: 1929-07-19
Abstract: 316,185. Electrical Research Products, Inc., (Assignees of Mertz, P.). July 24, 1928, [Convention date]. Television. - A field field of view is repeatedly completely scanned with uniform light, the entire path of one complete scanning partially overlapping that of a preceding one. The scanning disc 5, Fig. 2, has two or more complete sets of holes, each set 6 - - 10, 11 - - 15 capable of completely scanning the field and so located that the paths of the one set 11 - - 15 overlap the paths of the other set or sets 6 - - 10. Specification 288,234 is referred to.
Patent GB-849889-A (GB)
Title: Fuel composition
IPC: C10L1/26
Filed: 1959-06-29
Abstract: A motor fuel composition comprises hydrocarbons boiling within the range of the boiling point of C3-C4 hydrocarbons and 235 DEG C., from 2% to 50% by volume of a dialkyl ether containing from 4 to 8 carbon atoms and having at least one alkyl group with a branched chain, and from 0.001% to 0.1% by weight of an organic phosphorus compound of formula:  P(X)a(XR)b(R)c wherein X is an oxygen or sulphur atom, R is a monovalent organic radical having 1 to 10 carbon atoms and containing no atoms other than carbon, hydrogen and halogen, a is 0 or 1, b and c are 0 to 3 and the sum of b + c is 3.  In examples gasoline compositions contain diisopropyl ether, methyl tertiarybutyl ether, isopropyl tertiarybutyl ether, ethyl tertiarybutyl ether, isopropyl tertiaryamyl ether, tricresyl phosphate, tributyl phosphate, octyl diphenyl phosphate, dimethyl xylyl phosphate, tributyl phosphine, tris(2-chloropropyl) thionophosphate, diphenyl cresyl phosphate, tris(2-propyl) phosphite, dimethyl cresyl phosphate, tricresyl phosphite, tetraethyl lead, ethylene dibromide, ethylene dichloride, N-C12-alkyl-1,3-propanediamine, N,N1-disecondarybutylphenylenediamine and methylcyclopentadienyl manganese tricarbonyl.  Lists of suitable ethers and phosphorus compounds are given.
Patent GB-669134-A (GB)
Title: Improvements in or relating to treadles and like foot-operated mechanism
IPC: B62M1/24
Filed: 1949-08-30
Abstract: 669,134. Treadle mechanism, BRICKLAND, F. J. Aug. 4, 1950 [Aug. 30, 1949], No. 22544/49. Class 136 (ii). A treadle mechanism has a lifter member engaged by the operator's knee and lifted thereby and means connecting the treadle and lifter so that downward movement of the treadle returns the lifter downwards to the beginning of its next operative stroke. As shown in Fig. 4 the treadle 50 is connected by a linkage 57 to a knee member 56 and by a linkage 52 to a fitting 51 upon the steering head of the bicycle. A link 53 connects the member 56 with a crank 54 mounted on the spindle 55 of the chain wheel 58 which is connected by a driving chain 59 with a sprocket 60. The treadle is mounted on a rod 49 on an extension 47 of the tube 46. With the feet on the treadles and the cyclist's knees engaging the members 56 the cycle is propelled as the treadle is oscillated. As shown in Fig. 1 the treadle 14 is mounted on a shaft 15 secured to side members 11, 12 and has links 21, 22 pivotally connected to bars 18, 19. The bars are pivoted to a fixed bar 20 and support a cross bar 17. The treadle also has a link 25 secured to a crank 28 mounted on the spindle 29 of a flywheel 30. With the operator's feet on the treadle the bar 17 continuously engages the knees of the operator during the movement of the treadle and assists the drive. In a modification the treadle for a cycle Fig. 6 has a toe pad 64 pivotally mounted on the rod 49 and between members 63, a heel pad 64, and a slot 65 for adjustably positioning the link 57. The linkage may be adjustable to suit the operator and the arrangement of the linkage may be varied.
Patent GB-948260-A (GB)
Title: A device for use in artificial breathing by the mouth-to-mouth method
IPC: A61M16/00
Filed: 1960-06-28
Abstract: 948,260. Artificial respiration masks. S. M. HISON HOLMDAHL, E. A. NORDLUND, and G. F. PERSSON. June 28, 1960 [June 29, 1959; Oct. 23, 1959], No. 22552/60. Heading A5T. A respiratory mask for use in mouth-to-mouth artificial respiration is made of elastic material and has a stub pipe 2 for supplying air to the patient and an opening 10 through which the operator may insert his thumb for opening the patient's mouth. The opening has an inwardly directed flap-like flange which seals the opening when the thumb is inserted and which may be closed to form a finger-stall-like member. A nose clip 12 is attached to the mask which has a face-engaging flange 6 which is thinner than the remainder of the mask. The mask may have two identical valves (Fig. 7, not shown), one for supplying air and the other serving as a finger hole, the mask being symmetrical about an axis through the two valves and about an axis perpendicular to that axis. The nose clip may be suspended from a centrally placed bracket. The mask may be used for practising mouthto-mouth artificial respiration on a training doll.