baber/WOPTO huggingface dataset:
Patent GB-1195451-A (GB)
Title: Automatic Gain Control Arrangement for Television Receivers
IPC: H04N5/18
Filed: 1968-01-31
Abstract: 1,195,451. Television automatic gain control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 31 Jan., 1968 [2 Feb., 1967], No. 4950/68. Heading H3T. In a television A.G.C. circuit video signals with the sync. pulses negative going are fed to an emitter-follower 2 the output of which is connected to a diode gate 10, to the anode of which line flyback pulses are applied from terminal 35, via resistors 20, 11. The diode 10 is thereby gated to conduct during the backporch periods, the pulses appearing at the anode being fed over a two-stage D.C. amplifier comprising transistors 21, 25 and a smoothing capacitor 29 to the gain control signal output terminal 32. To the output of emitter-follower 2 is also coupled sync. separator 5, the output of sync. pulses from which, on line 6, are also applied via a potentiometer 7, 8 to the base of a clamping transistor 9. The collector-emitter path of this is connected across the join of resistors 11, 20 and earth, and in this way the transistor 9 prevents the line flyback pulses operating the diode gate 10 during the sync. pulse periods. Video signal is also fed to output terminal 33 from the emitter follower 2 via capacitor 15, the D.C. level being restored by means of a clamp circuit comprising diodes 17, 18 connected in series. The clamping level is determined by means of a potentiometer 13, and clamping is performed by means of line flyback pulses obtained via resistor 19 from the join of resistors 11, 20. In an alternative arrangement (Fig. 4, not shown) the clamping diodes are replaced by the emitter-collector path of a transistor (40), the clamping pulses being applied to its base and also to the black-level clamp, via differentiating circuits which are provided to narrow the clamping pulses: this renders the arrangement suitable for use with a synchronization system using phase comparison, in which a phase angle may occur between the sync. pulses and line flyback pulses.
Patent GB-387842-A (GB)
Title: Improvements in or relating to picks and the like cutters
IPC: E21C35/193
Filed: 1932-02-19
Abstract: 387,842. Picks. USKSIDE ENGINEERING CO., Ltd. and WOOD, J. W., Ridgedene, Alteryn Road, both in Newport, Mon. mouthshire. Feb. 19, 1932, No. 4992. [Class 61 (i).] Pivoted and adjustable handles; clamping- devices for socket fixings.-A pick or cutter mounting for a mineral mining machine, also applicable according to the Provisional Specification to manually wielded picks and mining tools generally, comprises a housing in the form of two rings 1, 2 separated by a space 10 and a cylindrical carrier 4 rotatable in the housing and provided with a diametral slot 7 to receive the pick or cutter 6, the pick being clamped in the carrier by a set-screw 11, after which the carrier is set in any desired angular position of the pick by means of a tapered screw 16 which expands the carrier 4 split at 13 into gripping contact with the housing. Instead of splitting the carrier and expanding by the taper screw the carrier may be secured rigidly within the housing by shrinking the housing on the carrier. Fig. 4 shows a modification wherein the base 3 is provided with two housings side by side to take two picks 6. In another modification, Fig. 6, the cylindrical carrier 4 has a polygonal head 18 coacting with a flat 19 on the housing to retain the carrier 4 in various angular positions, whilst in a further modification the circular bearing in the housing is replaced by a polygonal bore adapted to receive a polygonally shaped carrier.
Patent GB-413784-A (GB)
Title: Improvements connected with trestles
IPC: A47D13/10
Filed: 1933-02-18
Abstract: 413,784. Swings. WHITE, H., 67A, Pembroke Road, and JOYNES, F., 16, Charteris Crescent, Ely, both in Cardiff. Feb. 18, 1933, No. 5012. [Class 132 (i).] In trestles for supporting swings of the type in which each end support of the cross member comprises a central tubular member 4 having pivoted thereto a pair of divergent tubular legs 7, 8, the upper ends 9, 10 of which are adapted to embrace the central tube and be locked thereon by a sliding collar 15, the tubular cross member 13 has downwardly depending portions adapted to take into the central tube 4 and be secured by a pin 11 carried by one or both of the parts 9, 10. The short tube 4 has lugs 5, 6 pivoted to lugs at the upper ends of the legs 7, 8 which are formed arcuate at 9, 10 and provided with the pins 11. The cross member has holes 14 adapted to register with holes 12 in the tube 4 and when the legs are in the supporting position the pins 11 pass through the holes 12, 14 and the collar 15 is lowered on to the parts 9, 10 to lock the whole together. A leaf spring 16 on the tube 4 holds the collar off the ends of the legs while they are being collapsed.
Patent GB-101205-A (GB)
Title: Process for Impregnating Wood, Stone, Fabrics, and other Artificial and Natural Materials.
Filed: 1916-04-05
Abstract: 101,205. Elektro Osmose Akt.-Ges. (Graf Schwerin Ges.). Aug 18, 1915, [Convention date]. Stone and cement surfaces, hardening and preserving.-Wood, stone, fabrics, fibrous materials, cements, straw, bandage material, &c. are impregnated with a solution of chemically pure silicic acid, which may be prepared electro-osmotically as described in Specification 9237/14, [Class 41, Electrolysis]. For fibrous material, textiles, &c., the process also provides a finish or dressing which is suitable for absorbing dye-stuffs. Fibrous material treated by the process is capable of resisting heat.
Patent GB-1220481-A (GB)
Title: Control valve for an hydraulic motor
IPC: F16H61/40
Filed: 1968-02-01
Abstract: 1,220,481. Rotary positive displacement pumps and motors. ISHIKAWAJIMA-HARIMA JUKOGYO K.K. Feb.1, 1968 [Feb.1, 1967], No.5181/68. Heading F1F. [Also in Divisions B8 and F2] The state of a rotary hydraulic motor, which has first, second and third motor circuits 26, 27 and 28 respectively, and which is adapted to control a winch, is determined by the disposition, with respect to its housing 10, of a manually operable, multi-landed spool 11, the spool valve being adapted to give the motor, and hence the winch, a slow, intermediate and fast winding state and a winding down state. In the neutral position of the spool shown in Fig.4, the constant supply pump fluid output fed to a line 14 is restricted to flow to an inlet 16 wherein it is divided by a land 39 and caused to flow into two by-pass ports 20 and 21 and hence to tank via a line 22, there being no flow to or from the motor so putting it in a stop state. Upon slight upward movement of the spool from its neutral position, Fig. 5 (not shown), the by-pass passage 16, 20, 21 is closed and the supply is fed via a check valve 19, to two inlets 17 and 18 from where it is directed to all three motors circuits via their associated lines 29, 30 and 31, the outputs from the first two circuits 26, 27 being combined and flowing to tank via line 32 whilst the output from the third circuit 28 passing to tank via ports 35 and 20 of the valve, the arrangement putting the motor in a slow winding state. Further upward movement of the spool, Fig. 6 (not shown), blocks the inlet 17 with the result that only the first two motors circuits 26 and 27 are supplied by the pump via inlet 18 and lines 29, 30, the third circuit being so caused to act as a pump drawing its supply from line 32 via check valve 42, and the motor being thus moved to its intermediate winding speed. Still further upward movement of the spool, whereupon it attains its terminal uppermost end position Fig. 7 (not shown), results in only motor circuit 26 being supplied from the pump via inlet 18 and line 29, with the other two circuits consequently acting as pumps drawing their supply from line 32 via check valves 41 and 42, the motor being so placed in its high speed winding state. Downward displacement of the spool from its neutral state to its terminal lowermost position Fig. 8 (not shown), closes the by-pass passage and the inlet 18 but permits a reversed direction flow from port 17 to 35 and hence to circuit 28, the remaining circuits being likewise caused to act in the reverse direction but as pumps, the circuits, together with the check valves 41 and 42 and a control valve 44 which is caused to open, all serving to place the motor in a widing down state.
Patent GB-635136-A (GB)
Title: Improvements relating to paper and like boxes or containers
IPC: B65D5/32
Filed: 1947-02-21
Abstract: 635,136. Paper boxes or containers. CORSHAM, H. A. Feb. 21,1947, No. 5212. [Classes 18 and 66] A paper or like box or container, e.g. for ice crean has one side wall extended to form a closure flap B Fig. 1, with lateral and for ward extensions D, E. F or a forward extension only that are folded upwardly against the inside of the box walls to hold the flap in closed position, the for ward extension also having a tongue that project; above the top of the box as shown in Fig. 4, to facilitate opening. The box has a separate tray-like bottom G and may be perforated along the line C to allow the closure flap to be torn off and used as a spoon. The edges of the flap and the box walls may be crimped or serrated.
Patent GB-343739-A (GB)
Title: Improvements relating to baby carriages
IPC: B62B7/10
Filed: 1930-02-17
Abstract: 343,739. Folding baby carriages. RICHARDS, O. L., 100, Somerset Road, Edgbaston, Birmingham. Feb. 17, 1930, No. 5221. [Class 108 (i).] A folding baby carriage comprises a lower frame a, b, an upper frame c, connecting jointed struts d, e, a horizontal link f connecting the jointed struts and a constraining link g connecting the upper part d of one strut to the lower part e of the other strut at each side, the frames and link mechanism being enclosed by a flexible body covering and one of the jointed struts at each side being extended at k and linked by a bar j to a pivoted handle i for operating the folding. A projection m is provided as shown to facilitate the action.
Patent GB-946292-A (GB)
Title: Improvements in timepieces
Inventor: NAISMITH ROBERT
IPC: G04C23/34
Filed: 1959-02-14
Abstract: 946,292. Timing apparatus. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Feb. 12, 1960 [Feb. 14,1959], No. 5223/59. Drawings to Specification. Heading G3T. A clock which effects closure of electrical switches or activates mechanical trip devices at preselected moments in Mean time and Apparent time has for this purpose an actuater driven by an equation of time cam. The clock may be used in the recording of data at regular recurrent intervals.
Patent GB-349449-A (GB)
Title: Electric shaft furnace for treating metal scrap or ores
IPC: H05B3/60
Filed: 1930-02-17
Abstract: 349,449. Electric furnaces. HALASZ, J., Potyond, near BogyszlÞ, Hungary. Feb. 17, 1930, No. 5238. [Class 39 (iii).] Scrap metal 3 is melted in a shaft furnace, Fig. 1, having an upper tubular electrode 2 forming a continuation of the shaft, a lower electrode 6 built into the bottom of the shaft, and a resistance layer 4 of carbon, slaked lime, or slag arranged below the charge. In an ore smelting furnace, Fig. 2, the upper electrode is arranged in the shaft so as to be filled with and surrounded by the charge. A number of concentric tubes may replace the single tube shown. Melting occurs only in the region immediately above the resistance layer and a tap hole 5 is provided to enable the thickness of the slag layer to be maintained constant.
Patent GB-424858-A (GB)
Title: Method of and apparatus for wrapping bars of plastic material
IPC: B65B9/207
Filed: 1934-02-16
Abstract: 424,858. Paper &c. tubes. REDDIE, L. N., 6, Bream's Buildings, Fetter Lane, London.-(Vogt Instant Freezers, Inc. ; Louisville, Kentucky, U.S.A.) Feb. 16, 1934, No. 5244. [Class 99 (ii)] [See also Groups XVII and XXX] Plastic material such as ice-cream is packed by a continuous process involving the formation of a cylindrical tube from longitudinally-overlapping strips of paper, &c., and the extrusion of the plastic material into the tube so formed. In one apparatus, the tube is formed from two strips of paper of which one 10, Fig. 3, is shaped in a die-block 15 to about three-quarter cylindrical formation and is then fed on to a recessed mandrel 19, Fig. 7, provided with an upper rib 20, the mandrel being supported in a block 23 fitted with a collar 23<a> which completes the formation of the strip 10 into a cylinder. The second paper strip 25 passes over a gumming roller 31, which applies two strips of adhesive (or of a moistener if the strip is previously gummed), and is then led over a series of adjustable rollers 40, 41, 42 which provide for the required time of partial drying of the adhesive, and over an adjustable guide arm 47, to the top of the mandrel 19. A spring-pressed electrically-heated block 24 causes the strip 25 to adhere to the top of the strip 10 to complete the formation of the tube, the two adhesive strips 25b, Fig. 1<a>, being on either side of the abutting edges of the strip 10. The edges of the strip 25 form projecting tabs 48 which are gripped by a conveyer device to draw the tube through the apparatus and which subsequently serve for the easy unwrapping of the material, a perforated line 25<a>, also being provided for this purpose. The pressing mechanism 24 has a crank-controlled cam device 104 for lifting in order to thread through the paper at the start of the process. In a modified apparatus designed to produce a wrapping tube as shown in Fig. 18 with a projecting tab 143 on each strip of paper, both strips which are similar are gummed near one edge and the pressure device of Fig. 7 is modified as shown in Fig. 17 and provided with heating means in each half.
Patent GB-1396212-A (GB)
Title: Apparatus for impregnating textile fibres
IPC: C08J5/04
Filed: 1973-02-02
Abstract: 1396212 Liquid treatment of fibre slivers PAVENA AG 2 Feb 1973 [9 Feb 1972] 5247/ 73 Heading D1L Apparatus for impregnating a textile fibre assembly 13 with a liquid comprises a pair of contra-rotating discs 1, 2, two rigid lateral cover plates 3, 4 which form with the discs a compression zone D through which the fibre assembly passes, and inlets 9 and 10 in the cover plates for the introduction of impregnation liquid to the faces of the discs and hence to the compression zone D, the disc-facing surfaces of the cover plates 3 and 4 converging towards the discs 1 and 2 in the vicinity of the compression zone D such that each face forms with its corresponding disc an angle α. Preferably the ange α is between 3 and 30. In the Figures the converging faces are formed by suitable machining at the inward facing surfaces of the plates 3 and 4 and extend over a distance A approximately equal to the separation of the disc axes 8', 8" and, in the direction of fibre travel, over a distance G equal to the length of the compression zone D plus the length E of a fibre collecting zone formed upstream of the lip of the discs and the length F of the output zone of the apparatus. In alternative embodiments the converging surfaces of the plates are formed by inserts (32), (33) which are of a harder material (e.g metal, ceramics, ruby or sapphire) than the remainder of the cover plates (Figs 5 and 6, not shown) or by inserting wedge shaped separators (21), (22) at the input side of the discs between the otherwise parallel surfaced cover plates (Figs 3 and 4, not shown).
Patent GB-822513-A (GB)
Title: Improvements in and relating to control systems for induction motors
Inventor: HARDY DENIS RAYMOND
IPC: H02P27/02
Filed: 1957-02-15
Abstract: 822,513. Control of A.C. motors. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Feb. 17, 1958 [Feb. 15, 1957], No. 5265/57. Class 38 (3). Speed control means for an induction motor comprises a transformer the primary winding of which is adapted to be connected to one phase C of an A.C. supply system A, B, C, and to neutral N, whilst the secondary winding is tapped and connection is made from one of the taps to one of the motor-terminals. In this manner, the polyphase supply to the motor is unbalanced, and the degree of unbalance may be controlled so as to provide a continuous variation from full speed in one direction to full speed in the reverse direction. In another arrangement, an auto-transformer has its winding connected to the lines C and N and a motor terminal is connected to a tap in the transformer winding. The other terminals of the motor are associated with a reversing switch which is supplied from the lines A and B. Selection of the transformer-ratio enables the speed of the motor to be varied from its maximum value to zero, and operation of the reversing switch provides the same regulation in the opposite direction. If the motor is of the squirrel-cage type, stable operation is afforded by employing highresistance material for the bars and end rings forming the cage. Alternatively, suitable configuration of the rotor slots and bars may provide the desired result. In the case of a wound rotor, the control of the rotor resistance may be effected in unison with control of the stator voltage.
Patent GB-289203-A (GB)
Title: Improvements in or relating to extensometers
IPC: G01B5/30
Filed: 1927-02-25
Abstract: 289,203. Avery, Ltd., W. & T., and Holroyd, S. Feb. 25, 1927. Linear-dimension gauges. - Comprises a bracket adapted to be clamped to a specimen to be stressed in a testing-machine and having two pointed projections engaging the usual spaced marks in the specimen, one projection being fixed to the bracket while the other is carried by a lever fulcrummed in the bracket and having attached thereto a pointer or scale co-operating with a fixed scale or index. The bracket 7 is provided with perforated lugs 7<a>, 7b through which is guided a rod 8 on the cranked end of which is a rubber buffer 9 adapted to grip the specimen 5. A collar 10 may be secured to the rod at any point and a projection on the collar engages a slot in the bracket to prevent the rod turning. The bracket is placed to engage the specimen a fixed centre 12 engaging one of the spaced centre marks on the specimen while a movable centre 14b engages the other mark. The movable centre is carried on a lever 14 mounted on a knife edge 14<a> resting on a bearing block 13 in a housing 7<d> provided on the bracket. A lug 7<g> on the lever 14 is connected by a spring 18 to a fixed pin 19 on the bracket. Secured to the arm is a long pointer 15 carrying at the outer end a curved scale 16 sliding in a slot in a curved arm 7f on the bracket the arm 7f being also provided with a scale. A screw 21 serves to adjust the arm 14 in the housing and a screw 22 to adjust the pointer 15. As the specimen extends under stress, the sudden increase in the rate of extension at the yield point is readily observed on the scale.
Patent GB-1537083-A (GB)
Title: Fastening
IPC: F16B2/14
Filed: 1976-02-11
Abstract: 1537083 Anchoring nuts; bolting R W HOTZ 11 Feb 1976 [21 Feb 1975] 05351/76 Headings F2M and F2H In an adjustable joint between two members 12, 14 a tapered slot 20 with side walls converging towards the engagement surface 40 is provided in the fixed member 14 and a bolt passing through the hole 32 in the adjustable member 12 engages a nut 22 having side faces 24, 26 conforming to the tapered and converging walls of the slot 20, thus preventing downward movement of the member 12 when the nut is tightened into the slot. Instead of the nuts, the bolt head may be tapered.
Patent GB-795708-A (GB)
Title: Improvements relating to suction cleaner filter bags
IPC: A47L9/14
Filed: 1956-02-21
Abstract: 795,708. Suction cleaner filter bags. HOOVER, Ltd. Feb. 21,1956 [March 1, 1955], No. 5394/56. Class 8(2). In a suction cleaner filter bag 39, Fig. 3, having an air inlet 16, Fig. 4, in a flat wall 11 surrounded by a reinforcing plate 40 adhesively secured to said wall and having an opening 42 registering with the inlet 16, the plate 40 has an integral closure flap 43 capable of being pivoted about a fold line so as to close the inlet 16 and opening 42. In the closed position a tab 45 engages below a lip 46. The bag 39 has pleated sides 14 and is held within a cleaner casing 25 by a bracket 26 having U-shaped shoulders which engage between the free edges of the reinforcing plate 40 and the bag wall 11.
Patent GB-870658-A (GB)
Title: Improvements in or relating to sewing machines
Inventor: PLASTOW RONALD JAMES
IPC: D04D5/00
Filed: 1958-02-20
Abstract: 870,658. Sewing machines. ROSE BROS. (GAINSBOROUGH) Ltd., and ALMOND Ltd., DAVID. April 3, 1959 [Feb. 20, 1958], No. 5481/58. Class 112 A fringe making attachment for a sewing machine comprises a yarn guide 12 slidable towards and away from the sewing position, when the attachment is positioned on a sewing machine, in directions transverse to the direction of material feed, and mounted on a support itself mounted for oscillating movement in a direction transverse to that of the sliding movement, a loop forming member 32 mounted for oscillating movement towards and away from an abutment 46, the yarn guide and the loop forming member moving in timed relationship with each other so that the guide carries the yarn from the stitching position towards and around the loop forming member when the latter is lifted and then back to the stitching position, the loop forming member in the meantime being moved downwardly to trap the yarn in the form of a loop. The guide 12 is fixed to a slider 13 mounted to slide on a splined, or as shown, a square shaft 14. A pivoted arm 24 has one end connected to the slider by a link 23, and is connected by a link 26 to a crank 27, driven from the main shaft to the sewing machine. The position of the pivot bolt 29 connecting the link 26 with the arm is adjustable along a slot 31 in the arm to adjust the stroke of the slider. A crank 16 on the shaft 14 is connected to a link 17 embracing an eccentric 18 which is rotated by the main shaft to oscillate the shaft 14. The loop forming member 32 is secured to a shaft 33 carrying a tappet arm 34 spring urged into engagement with a roller 37 eccentrically mounted on a disc 38 secured to a shaft 39 rotated by the main shaft. The member 32 is secured to the shaft 33 by a screwed stud 42 passing into a slot 43 to permit adjustment of the member along the shaft to suit fringe loops of different length. Rotation of the shaft 39 causes the member 32 to move towards and away from an abutment member 46 freely mounted on the shaft 33 and spring biased towards the base-board 47 of the machine. A fringe guide 48 connected to the abutment member by a bridge piece 49 deflects the formed loops away from the mechanism. A knife, not shown, may be provided to cut the loops of the fringe when required.
Patent GB-1491173-A (GB)
Title: Rear fender assembly for vehicles
IPC: E02F9/02
Filed: 1976-02-12
Abstract: 1491173 Mudguards CATERPILLAR TRACTOR CO 12 Feb 1976 [2 June 1975] 05547/76 Heading B7J An earthmoving machine comprises front and rear frames 11, 13 articulated to one another and carrying a pair of front wheels 12 and a pair of rear wheels 15 respectively; each rear wheel 15 being covered by a respective fender assembly 18. The latter is characterized in that it comprises a fender 19, overlying the wheel 15, and a box-like support bracket 20 secured to an end of a rear bumper assembly 21 having a plate 22 secured to the rear frame 13, the bracket also being secured to the rear end of the fender 19 and having mounted therein, at the forward end of the bracket, a reinforcing inclined plate member 36 disposed transversely of and closely adjacent the wheel 15, at approximately the same height as the wheel axis X, which plate deflects rearwardly, any debris thrown up by the wheel 15.
Patent GB-881329-A (GB)
Title: A plate sieve structure
IPC: B07B1/46
Filed: 1958-02-20
Abstract: 881,329. Sieves. ROSENTHAL-ISOLATOREN-G.m.b.H. Feb. 20, 1958 [Feb. 20, 1957],No. 5565/58. Class 117 A sieve plate comprises a number of bodies 1 of wear-resistant material, e.g. hard ceramic or sintered metal, interconnected by adhesive 3, and with gaps between the bodies providing sieve apertures. A suitably apertured supporting plate may be located adjacent theadhesive, and the latter and plate may be of thermoplastic material. Instead of an adhesive the bodies 2, Figs. 3 and 4, have recesses 5 receiving a plastic material 3 backed by a plate 4.