baber/WOPTO huggingface dataset:
Patent GB-651257-A (GB)
Title: Improvements in or relating to circuit-arrangements for producing sawtooth current in an inductance coil
IPC: H03K4/90
Filed: 1947-05-07
Abstract: 651,257. Impedance networks. PHILIPS LAMPS, Ltd. May 7, 1947, No. 12377. Convention date, May 10, 1946. [Class 40 (viii)] In a circuit for producing a saw-tooth current in a coil of inductance L and resistance r by producing a voltage pulse across the secondary winding of a transformer across which the coil is connected, the linearity of the saw-tooth current is improved by connecting an auxiliary coil of inductance L1 and resistance rl in series with the coil. The junction point of the two coils is connected through a circuit comprising a resistance r2 to a point on the secondary winding of the transformer to divide the voltage across this winding in the ratio of p : 1 where p is such that pL is greater than L1. Further relationships between the values of the components are derived. In a modification shown in Fig. 3 the linearity is still further improved by including a capacitor of valve C2 in series with resistance r2 of such a value that C2 is equal to Specification 647,478 is referred to.
Patent GB-717873-A (GB)
Title: Improvements in a box forming apparatus
Inventor: PALMER CHARLES E
IPC: B31B3/44
Filed: 1952-05-16
Abstract: <PICT:0717873/III/1> <PICT:0717873/III/2> Apparatus for applying adhesive to box blanks and forming part of a box-making machine (see Group XVII) comprises a glue trough 112 in which rotate rollers 119, the rollers transferring glue to sectors 20 which contact the blanks B as they are carried to the box formers by conveyer chains 18.  The glue film on the rollers 119 is regulated by pivoted doctor blades (not shown).  Each sector has intaglio rubber surfaces 149 depositing two areas of glue on the blank passing between the sectors 20 and back-up rollers 21 carried on pivoted arms 154.  The elements 119, 20, 21 are adjustable on their shafts to suit different size blanks.
Patent GB-494529-A (GB)
Title: Improvements in or relating to dart boards and the manufacture thereof
IPC: F41J3/02
Filed: 1937-05-01
Abstract: 494,529. Dart boards. DUNLOP RUBBER CO., Ltd., VAUGHAN, G., and HITCHMAN, J. W. May 1, 1937, No. 12468. [Class 132 (iii)] The numerals of a dart-board are each moulded, burned or painted on one face of a patch of canvas, leather or other material that is combined with rubber, balata or the like and adheres to the face of the board or to rubber or like material secured by wire to the board. As shown in Fig. 1, the patches 4 are applied to the board so as to be enclosed by markings 5 of the same shape as the patches. The rubberized surface of each patch, or the areas of the board enclosed by the markings, may be permanently adhesive and protected by coverings removed prior to the application of the patches. Alternatively, adhesive may be applied to the patches immediately before their affixation. In the form shown in Fig. 2, the numerals are formed on patches adhering to discs 6. A ring of wire 7 passes through the discs and is attached to the board by clips.
Patent GB-125149-A (GB)
IPC: F22D3/00
Abstract: 125,149. Weir, G. & J., and Weir, W. June 17, 1916. Feed-water, supplying.- Apparatus for condensing steam and heating boiler feed-water comprises (1) a pump c withdrawing condensate from the condenser a and discharging it through a feed-pipe f to the feedpump r, (2) a surface feedheater h which is situated on the feed-pipe f and through which passes the whole of the condensate discharged by the pump c, (3) a steam jet g withdrawing air from the condenser and discharging against atmospheric or super-atmospheric pressure to the feed-heater h where the steam is used for heating purposes, (4) a feed-tank t, to which water is admitted from the feed-pipe f through a loaded valve s, and which discharges either automatically under the control of a valve w to a suction side of the pump c or to a pump discharging to the feed-pipe f through a loaded non-return valve, and (5) a return pipe 8 with a hand-controlled valve 9 leading water back to the condenser either from the feed-tank t or from the discharge from the feed-heater h. The air is discharged from the heater h to the atmosphere by a pipe p; the condensate may be discharged through a valve n controlled by a float o either to the suction side of the pump c or to the feed-tank t. A second surface feed-heater q may be included in the system. The valve w is controlled by a piston or diaphragm actuated by the pressure transmitted through a pipe 3 from the discharge side of the pump c.
Patent GB-729323-A (GB)
Title: Improvements in or relating to optical projection screens
Inventor: TAYLOR JOHN HARRY
IPC: G03B21/60
Filed: 1952-05-17
Abstract: 729,323. Projection screens. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 14, 1953 [May 17, 1952], No. 12523/52. Class 97 (1). The surface of a reflecting screen is composed of a series of light reflecting elements of substantially uniform shape, non-reflective light-obscuring means being provided extending from the screen surface at positions along lines defining the junction of adjacent elements, the said means projecting from the screen surface by such an amount that light projected substantially normally on the screen is able to reach said elements and be reflected therefrom within the angle of spread of the screen but light from outside the intended angle of spread of light reflected from the screen is substantially prevented from reaching the light reflecting surface thereof. The screen shown is covered with reflecting concavities 1, successive horizontal rows of which, or successive groups of small numbers of horizontal rows of which are separated by projecting non- reflecting baffles 4, with or without vertical baffles to form a box structure. The baffle arrangement may be separate from the screen, made separately and subsequently attached, or made integral with it. Specification 722,614 is referred to.
Patent GB-426685-A (GB)
Title: Improvements in connection with vehicle lighting for parking
IPC: B60Q1/48
Filed: 1933-11-16
Abstract: 426,685. Switching systems for motorvehicle lamps. EVANS, C. J., and EVANS, S. C., 99, London Road North, Lowestoft. Nov. 16, 1933, No. 12579/34. Divided out of 412,604. [Class 38 (iv)] [See also Group XXXVIII] On a vehicle provided with normal and reverse lighting systems, either of which can be used at will, an alarm or signal is operated when the lighting is reversed, or when the vehicle travels forwards with the lighting reversed, and may be operated when reversing with the lighting normal, the arrangement being such that the reverse lights can be brought into operation only by the actuation of a manually or pedestrially operated switch. In the forms shown, the normal lighting is represented by the lamps 149, 150 and the reverse by 152, 153 but additional lamps may be included in both circuits As shown in Fig. 27 the signal lamp 148 is illuminated when the reverse lights are brought into operation by turning the switch contact 81 to the left, except when the plunger switch 109 is opened, the switch 109 being actuated by the reverse gear mechanism. As shown in Fig. 31, operation of the forward gear closes plunger switch 170 and the lamp 148 is thereby illuminated if switch contact 60 is thrown left to render the reverse lighting operative and this lamp will also be illuminated if contact 60 is thrown right and the plunger switch 171 is closed by the engagement of reverse gear. If contact 162 of switch 161 engages contact 164, front 151 or rear headlights 160 will light according to the position of switch contact 61. In a modified form the lamp 148 is on whenever the reverse lights are on or it may be disconnected when reverse gear is engaged, and in place of or in addition to a lamp an audible indicator may be operated. The rotary switches of which the contacts 60, 61, 81, 162 form part, are hand or foot operated and may also control the battery or the headlight dipping-mechanism.
Patent GB-887477-A (GB)
Title: Improvements in apparatus for butt splicing sheet material
IPC: B29D30/46
Filed: 1959-04-14
Abstract: 887,477. Seaming non-metallic sheet material. GOODRICH CO., B. F. April 14, 1959 [April 17, 1958], No. 12668/59. Addition to 859,381. Class 42 (1). [Also in Group IV (a)] Apparatus for butt splicing sheets of tacky rubberized stock comprises a frame and a table for the stock, a splicing head mounted on the frame for motion toward and away from the table and including splicing jaws for engaging the stock while the head continues motion toward the table, a support on the frame fixed relative to the table, stock presser foot means movably mounted on the support, means for resiliently urging the presser foot toward a retracted position away from the table, latch means mounted on the support for maintaining the presser foot in an advanced position against the stock as the head retracts and means on the head for disengaging the latch for retraction of the presser foot. As shown, the apparatus of the parent Specification is modified by the provision of a presser foot 32 extending from rods 33 and 31. A collar 37 is adjustably mounted on rod 31. for engagement by upper links 19 in order to press the foot 32 against the stock. On the rod 31 is an upper collar 38 that retains the main retract spring 39. In order to latch the foot 32 against the stock a latch collar 41 is fastened to the rod for engagement with movable latch bars 46 which carry plates 47 formed with sharp edges 48 for engaging the collar 41. Bars 46 are pivoted on pins 49 and have extensions 51 engaging spring-loaded plungers 52 which urge the latch bars towards the latched position. The lower ends of the latch bars 46 carry release rollers 54 that are actuated by a cam 56 on the rod 31. In operation, when the splicing head assembly descends the splicing jaws 26 engage the stock and the jaws are brought together laterally to make the splice. At the same time due to the action of the upper links 19 on collar 37, the presser foot is lowered on to the stock. At this time the latch collar 41 just clears the edges of plates 47 and the plungers 52 cause engagement of the latch means. After completion of the splicing action the splicing head assembly retracts, but the presser foot remains against the stock to prevent action of the jaws from opening up the splice. In this position the collar 41 is just about to be freed by the cam surface 57 acting on rollers 54. Further retraction of the head unlatches the rod 31 and the spring 39 quickly snaps the presser foot clear of the stock without danger of lifting the stock from the table.
Patent GB-541926-A (GB)
Title: Hydraulic tipping gear and hoists for vehicles
IPC: B60P1/16
Filed: 1940-08-08
Abstract: 541,926. Tipping-vehicles. SUNSALOON BODIES, Ltd., and PEARSON, D. A. Aug. 8, 1940, No. 12726. [Class 108 (i)] In hydraulically operated tipping vehicle the ram cylinder is supported by a cross-head or cradle which is connected to the chassis frame members by tie-rods. As shown, a cup-bearing block o for the ram cylinder d and a cradle or cross-head j are secured on either side of the vertical flange of an angle-section cross-member v by bolts p and tie-rods i disengage from the cross-head to eye-blocks k formed on the pivot broskets g, by which the body is pivoted on a the chassis a. Washers r with opherical bearing surfaces are interposed between nuts s, u on the ends of the tie-rods and the eyes n of the cross-head and eye-blocks. The tie-rods take the main longitudinal thrust of the ram and enable a lighter cross-member v to be used. The cup-bearing block x for the ram cylinder on the body is mounted in a deep channel member e secured to the body.
Patent GB-778391-A (GB)
Title: Method of producing finned tubing
Inventor: JONES DOUGAN LEE
IPC: B21C37/26
Filed: 1954-05-03
Abstract: 778,391. Making gilled tube; brazing; coiling. MARLEY CO. May 3, 1954, No. 12730/54. Classes 83 (2) and 83 (4). In a method of brazing aluminium fins on to a tube of copper, steel, &c., a layer of cadmium in plated or powder form is applied at the joint together with a flux containing a reagent which reacts with the cadmium when heated to form a brazing alloy. A tube of copper 10, Fig. 3, plated with cadmium and coated with flux containing zinc chloride has a strip 32 of aluminium helically wound thereon between rollers 36, 38 and ironing members 40 the tube being rotated and fed longitudinally by driven skew rolls (not shown). The tube is electric resistance heated to about 750-850‹ F. so that the zinc chloride reacts with the aluminium to form pure zinc which alloys with the cadmium. A suitable flux contains zinc oxide, ammonium chloride and sodium fluoride in addition to the zinc chloride and is applied by a spray 24, Fig. 2, in a chamber 22 through which the tube is fed during winding. A brush 30 wipes the tube to provide a uniform coating. In a modification powdered cadmium may be mixed with the flux instead of using cadmium plating.
Patent GB-540872-A (GB)
Title: Improvements in and relating to liquid fuel burning apparatus
IPC: F23D11/10
Filed: 1940-08-09
Abstract: 540,872. Liquid fuel burners. McKEAN, J. G. Aug. 9, 1940, No. 12779. [Class 75 (i)] A liquid fuel burner comprises a burner body 1 formed with a fuel passage 2 and a steam or compressed air passage 3 terminating in an annular recess 4, an atomizer disc 5 formed with a central aperture 9 and angularly spaced apertures 10, and a cap or nozzle 7 screwing on the body 1 and formed with a mixing chamber consisting of an axial truncated conical passage 8 terminating in a cylindrical discharge passage 8'. The apertures 10 may be inclined at the same angle as the passage 8 and be angled in the same or opposite directions to impart a whirling or turbulent movement to the fluid in the mixing chamber. The outlet end of the aperture may be flared.
Patent GB-902474-A (GB)
Title: Improvements relating to flat two-bed hand-knitting apparatus
IPC: D04B7/08
Filed: 1959-04-15
Abstract: 902,474. Knitting-machines. ETABLISSEMENTS SUPERBA S.A.R.L. April 15, 1959 [April 16, 1958], No. 12794/59. Class 74 (2). The cams for operating the needles in each bed of a hand-operated parallel bed machine comprise forward and reverse stitch cams 12, which also serve as clearing cams, fixed upthrow cams 14 and a fixed central needle lowering cam 13. The cams 12 are secured to members 6, each having a pin 7 to enable each member 6 and its cam 12 to pivot about the pin 7 which is accommodated in a slot 8 formed in the cam-plate 5. The lower ends of the members 6 are connected by a spring 9 to urge them towards each other such that the upper ends of the cams 12 are urged into contact with a flange 10 on the plate 5. The positions of the pins 7 in the slots 8 are adjustable by means of a cam 30 pressing against one of the members 6 and which cam 30 is rotatable by a knob which simultaneously adjusts the position of a pin 32 pressing against the other member 6, as shown in Fig. 3. This adjustment of the members 6 serves to vary the length of draw of the needles. During the forward and reverse movement of the cam slide the needles engage the upper surface of the leading cam 12 and depending on whether the cam is prevented from pivoting about its pivot 7, or is limited in its movement, or is permitted free movement, various pattern effects can be achieved. For this purpose various pins 25, 26, 27 are capable of being projected through the plate 5 into the pivoted path of the cams 12 so that the movement of the cams 12 when engaged by the needle butts can be restricted to cause the needles to clear prior to knitting, Fig. 5, to be raised sufficiently for tucking, Fig. 7, or to pass below the yarn feeding height and remain inoperative, Fig. 6a. Thereby plain or tubular knitting can be achieved, or rib knitted fabric with or without tucking on one or both beds can be produced. The pins 25, 26, 27 can be projected through the plate 5 by means of push-buttons on the cam slide connected to plates carrying the pins or by means of a rotatable knob having a cam surface engaging and pressing the pins down as it is rotated.
Patent GB-670101-A (GB)
Title: A device for stabilising and homogenising liquid mixtures
IPC: A01J11/16
Filed: 1949-05-13
Abstract: <PICT:0670101/III/1> <PICT:0670101/III/2> <PICT:0670101/III/3> Liquids are homogenised by passage through a cyclone comprising a vessel with a tangential inlet and an axial outlet into a whirl chamber consisting of a vessel open at one end only, at which end liquid is both fed and discharged.  As shown in Fig. 2 liquid is fed tangentially into a vessel 1 from which it is discharged axially into a vessel 2.  The Specification as open to inspection under Sect. 91, comprises also the homogenisation of liquids by bringing the liquid to a high velocity such as by spraying under pressure and expending the energy as turbulence.  As shown in Fig. 2 (Cancelled) liquid is projected from an adjustable orifice 3 into a chamber 8 and withdrawn at 9.  A homogeniser combined with a centrifugal separator is shown in Fig. 5 (Cancelled) wherein cream separated from milk entering at 9 is passed through an orifice 13 into a stationary chamber 12 which may contain projections.  This subject-matter does not appear in the Specification as accepted.
Patent GB-599202-A (GB)
Title: Improvements in the manufacture of oil resisting rubbers
IPC: C08C19/20
Filed: 1945-05-23
Abstract: Oil resisting derivatives of rubber are prepared by reacting a chlorothiolacid, preferably monochlorothiolacetic acid, with rubber to obtain a product with a chlorine content of not less than 13.3 per cent.  The reaction preferably takes place in solution in an organic solvent such as benzene or toluene, the product being obtained by precipitation with excess ethyl alcohol or by evaporating the solvent.  A peroxide catalyst such as ascaridole may be utilised and the reaction may be accelerated by irradiation with ultraviolet light.
Patent GB-400987-A (GB)
Title: Improvements in or relating to double-barrel sporting guns of the under-and-over type
IPC: F41A3/60
Filed: 1932-05-05
Abstract: 400,987. "Under-and-over" sporting guns. SCHOLBERG, P., 24, Rue Morinval, Liege, Belgium. May 5, 1932, No. 12952. Convention date, Feb. 26. [Class 119.] The barrel-block 2 is removably secured to the casing 1 at the fore-end of the stock by lateral grooves or ribs 8 on the block which engage or coincide with corresponding ribs or grooves on the casing, a strap or stirrup being movable on the casing to lock the parts after assembly. Figs. 1 and 3 show one construction in which the barrel-block is inserted vertically in a U-shaped casing 1 and locked by a sliding cover-strap 6. In the form shown in Fig. 6, the grooves 10 in the casing 1 receive projections on a barrel-block which is slidden endwise into position and locked by a stirrup 15 which is inserted from below to engage registering vertical grooves in the casing and block.
Patent GB-650441-A (GB)
Title: Improvements in or relating to counting arrangements for electrical impulses
IPC: H03K23/74
Filed: 1948-01-17
Abstract: 650,441. Counting-apparatus. GUNNING, P. F. Jan. 17, 1948, No. 13115/50. Divided out of 650,435. [Class 106 (i)] In an arrangement for counting electrical impulses, a storage relay chain comprising a series of pairs of relays O, OO, T, TT, F, FF connected to operate according to the binary system receives impulses over contacts of relays X and Y, the Y-impulses being added and the X-impulses subtracted. As shown, relays X and Y are energized through the relay circuits described in Specification 650,435, as the result of energy received by electric meters (not shown). A small quantity of energy measured on one meter (associated with relay Y) is to be subtracted from a larger quantity measured on other meters (associated with relay X). Relay X normally operates a grand total counter Su, but if relay Y has been energized to store one or more impulses in the relay chain the subsequent X-impulses are diverted until the Y- impulses have been cancelled out. On the first operation of relay Y, contacts Y1 complete a circuit through rectifier MR2 to the left-hand winding of differential relay O which then closes contacts O1 to prepare a circuit through its right-hand winding, and contacts 02 to complete a circuit through the left-hand windings of relays O and OO, the latter being energized, when the short-circuit through Y1 is removed, to operate contacts OO1, 002. Thus, if an X-impulse is next received it will be diverted from the counter Su to the right-hand windings of relays O, OO to release relay O immediately and relay OO at the end of the impulse. If, however, a Y-impulse is received (with relays O, OO operated), relays O, OO are still released but a circuit is completed through contacts Y2 to the next pair of relays T, TT, which are subsequently released by X-impulses over contacts TT2, X2, and the pair of relays F, FF are similarly operated, and released.
Patent GB-144074-A (GB)
Title: An improved hobby-horse
IPC: B62M1/00
Filed: 1919-05-24
Abstract: 144,074. Bennett, C. G. M. May 24, 1919. Cycles for walkers and runners.-A hobby-horse comprises a rectangular frame 2 carrying one or two adjustable saddles 4 and mounted on a front steering-wheel and a single back wheel, one or more adjustable foot-rests 5 being provided on the lower bar. A plate of cardboard or metal may be detachably or permanently connected to lugs 6, an internal-combustion engine carburettor &c. being painted on the plate to make the hobby-horse resemble a motor-cycle. The tubes forming the frame may be telescopic, and a spring buffer may be placed between the steering-wheel and the frame.
Patent GB-278619-A (GB)
Title: Improvements in supports for fire extinguishers
IPC: A62C8/00
Filed: 1927-05-16
Abstract: 278,619. International Fire Equipment Corporation, (Assignees of Bronander, W. B.). Feb. 23, 1927, [Convention date]. Grenades; hand sprinklers.-A holder or support for a grenade 30 comprises a plate 10 which is attached to a wall and has two pairs of lugs 13, 14 on which pivot vertical arms 25 bent out from supporting members 16, 17. The latter are of spring wire and are bent as shown in Fig. 3 to form shoulders 18 and flat portions 22, 23 which abut the plate 10, and straight ends 20, 21. The members 16, 17 are held in tension to support the grenade by a plate 31. The end 21 engages an aperture in the plate 31 and the end 20 engages a notch in the plate and an aperture in a strip 36 secured over the notch by fusible solder 40 which melts in case of fire, releasing the arms 16, 17 and allowing the grenade to fall. For hand use, the grenade is lifted from the support.
Patent GB-132039-A (GB)
IPC: E04C5/03
Abstract: 132,039. Vesian, J. S. E. de, and Mouchel &. Partners, L. G. Sept. 5, 1918. Rods and bars.-Bars for reinforcing concrete are rolled with helical and slightly projecting ridges or helical grooves, the section of the bars being octagonal or other polygonal shape comprising straight cr curved lines meeting preferably at an obtuse angle. Fig. 2 shows one form of roll, the groove having helical projections.
Patent GB-132121-A (GB)
IPC: F01L5/06
Abstract: 132,121. Soc. Anon. pour l'Exploitation des ProcÚdÚs Westinghouse- Leblanc. Nov. 19, 1917, [Convention date]. Contacts, arrangement of external.-A double acting piston 1 and its cylinder 9 are connected to opposite cranks 5, 6 which may have different throws. Combustible mixture from the chamber 12 enters the combustion chambers through the ports 25, 26 while exhaust occurs through the ports 27. The sparking-plugs 13 travel in chambers 15 with caps 19 of insulating-material carrying terminals 21.
Patent GB-217022-A (GB)
Title: Improvements in leading-in tubes for wireless aerials
IPC: H01Q1/50
Filed: 1923-05-17
Abstract: 217,022. Robins, R. W. May 17, 1923. Aerials.-A leading-in tube has one or more earthed sparking points insulated from the conductor but arranged in close proximity thereto. The Figure shows a sparking plug body 3 provided with a central conductor 1, and points 2 abutting against an earthed metallic plate 8. The conductor 1 is spaced from the insulating tube 4 by a metallic tube 5. and thereafter is housed in an insulating tube 6 in the usual manner.