baber/WOPTO huggingface dataset:
Patent GB-358306-A (GB)
Title: Improvements in gas and like radiator stores
IPC: F24H3/00
Filed: 1930-10-20
Abstract: 358,306. Radiator stoves. NILSSON, C., 18, S÷dergatan, Esl÷v, Sweden. Oct. 20, 1930, No. 31376. [Class 126.] A gas-heated radiator comprises upper and lower headers connected by pipes 2 so shaped as to expose the upper header to radiation from the burner flame. Pipes 3 extend radially from the lower header 1 and connect with a vertical pipe 4 depending from the upper header 5; a pipe 7 extends from this header to an expansion box 8, and communicates through pipes 9, 10 with radiator units 11, 12 connected also to the lower header by pipes 13, 14. The casing 6 rests on feet 16 which may be provided with wheels.
Patent GB-1536217-A (GB)
Title: Device for the automatic regulation of the tension of a toothed timing belt
IPC: F16H7/12
Filed: 1976-07-28
Abstract: 1536217 Belt tensioners ALFA ROMEO SpA 28 July 1976 [7 Aug 1975] 31533/76 Heading F2Q An automatic tensioner for a toothed timing belt comprises a pulley 10 rotatably mounted on a member 12 which is eccentrically mounted on a pin 13 and carries a disc 23 to which an arm 24 is attached, the arm 24 being acted upon by two springs 33, 38 when the engine is at rest and by only one spring 38 when the engine is running due to lubricating oil from the lubricating system of the engine acting on a piston 26 to oppose the force of the spring 33. In a modification, the spring 38 is replaced by a spring 38<1>, Fig. 4.
Patent GB-386079-A (GB)
Title: Improvements in centrifugal separators
IPC: B04C1/00
Filed: 1931-11-16
Abstract: 386,079. Centrifugal gas - cleaners. HOWDEN & CO., Ltd., J. and HOWDEN, W. H., 195, Scotland Street, Glasgow. Nov. 16, 1931, No. 31640. [Class 23.] A centrifugal separator for removing dust from gases has a scroll or spiral intake casing with a scroll plate 1, Fig. 1, having slots 5 through which the dust is discharged into the hopper 2. The edges of the slots are bevelled or stream-lined. The separator is used in connection with a fan of the type described in Specification 295,018, [Class 110 (i), Centrifugal and screw fans &c.]. The hopper 2 is connected to the intake eye 6 of the fan by a pipe 7 with a valve 8 so that the pressure in the hopper can be kept lower than that on the inside of the scroll plate 1. In the modification shown in Fig. 2, the dust passes through the slots 5 to the annular chamber 4 connected to the cyclone separator 10 which is in turn connected to the intake of the fan through the valve 9. The edges of the slots 5 may be flush with the scroll plate ; or the forward edge may be pressed outwards from the plate to assist the passage of the dust.
Patent GB-1481310-A (GB)
Title: Cross flow air cooler
IPC: F28D7/16
Filed: 1974-07-17
Abstract: 1481310 Air coolers KLOCKNER-HUMBOLDT-DEUTZ AG 17 July 1974 [24 Aug 1973] 31743/74 Heading F4S In a cross flow air cooler 1 used for cooling air to be supplied to a super-charged I.C. engine and comprising a plurality of rows of tubes 2 through which coolant water is passed, the tubes 2 are so formed and/or arranged that the rate of heat exchange from the air to the coolant in the tubes of one or more of the rows with which the incident air first makes contact is lower than that of the tubes of the remaining rows, whereby coolant in the air tubes 2 of the row(s) facing the incident air is prevented. As shown this is achieved by more widely spacing the fins 5 on the first two rows of tubes facing the incoming air than on the following rows of tubes. Alternatively the height of the fins on the tubes may be increased in the direction of air flow 4 (not shown), or all the fins and tubes may be of identical design with the first two rows of tubes being provided with insulating coatings to reduce the heat transfer from the air to the tubes (see Fig. 5, not shown); the insulating coating may consist of a synthetic plastics material. In a further alternative the fins may be omitted altogether on the first two rows of tubes (Fig. 2, not shown), or the tubes of the first rows facing the incoming air may be more widely spaced than the downstream rows of tubes (Fig. 3, not shown). In yet another alternative (Fig. 4, not shown), the side walls (6) of the air cooler converge in the direction of air flow.
Patent GB-753342-A (GB)
Title: Improvements in or relating to urea purification
IPC: C07C273/04
Filed: 1953-11-17
Abstract: A hot flow of crude urea, comprising urea, ammonium carbamate and water, is passed concurrently with a hotter flow of a concentrated aqueous solution of substantially pure urea downwardly through a packed vapour-liquid contact zone, whereby ammonium carbamate in the crude product is decomposed to ammonia and carbon dioxide gases; ammonia and carbon dioxide gases are removed upwardly from said zone and a purified product comprising essentially urea in aqueous solution is removed from the bottom of the zone.  A portion of the product is removed for further processing and the remainder is passed through a heat exchanger and recycled to the contact zone to provide the said hotter flow of aqueous pure urea.  The distillation is carried out at a temperature only a few degrees above the melting point of the urea solution and below about 255 DEG  F. and the recycled aqueous urea is heated to 8 DEG  to 10 DEG  F. higher than the distillation temperature.  The crude urea may be initially at a higher temperature than the heated recycled aqueous urea, but on entering the decomposer which is at a lower pressure than the crude urea, the latter is flash cooled to a temperature lower than that of the recycled urea.  In an example, crude urea at 230 DEG  F. and 25 p.s.i.g. pressure is delivered to the decomposer which is at atmospheric pressure, whereby flash cooling to 190 DEG  to 195 DEG F. occurs; stripped recycled urea at 222 DEG  F. is introduced into the decomposer at a point above the crude urea and the product leaving the decomposer is an aqueous urea solution containing 1 per cent ammonia.
Patent GB-1473898-A (GB)
Title: Data transmission systems
IPC: H04L1/18
Filed: 1975-07-08
Abstract: 1473898 Data transmission STANDARD TELEPHONES & CABLES Ltd 8 July 1975 [18 July 1974] 31843/74 Heading H4P In a data transmission system of the duplex operation type in which a retransmission cycle is effected on receipt of a corrupted block of data, each data-conveying block is allocated a forward sequence number (FSN), the numbers (FSN) being allocated successively in a fixed cyclic sequence so that each data-conveying block transmitted from one terminal to another has a different FSN from the immediately preceding data-conveying block. Idle blocks are transmitted in the absence of data-conveying blocks and each block whether data-conveying or idle, includes a revertive sequence number (RSN) which identifies the next data-conveying block to be received by said one terminal from that other terminal. Each terminal includes store and logic circuitry described with reference to the single Figure (not shown) which recognizes the said numbers FSN and RSN, which detects by parity checking the reception of a corrupted  form of a data-conveying block transmitted from another terminal and which ensures that retransmission occurs only in the direction of said terminal to said other terminal.
Patent GB-1465114-A (GB)
Title: Method and system for driving a pulse motor
IPC: H02P8/22
Filed: 1974-07-17
Abstract: 1465114 Digital-to-analogue conversion FUJITSU Ltd and FUJITSU FANUC Ltd 17 July 1974 [26 July 1973] 31979/74 Heading H3H [Also in Division H2] A D/A converter used in a control circuit for a stepping motor, (Division H2), comprises input AND gates A11-A82 connected in pairs as shown to respective NOR gates OR1-OR8, the outputs of which control respective switching transistors T1-T8 each arranged with grounded emitters and supplied via respective collector resistors R1-R8 from a source +V, the resistors having values in the ratio 8 : 4 : 2: 1 respectively. Diodes D1-D4 connect the outputs from transistors T1-T8 to a common input of amplifier OP which supplies the converter output. One input of each AND gate is connected to an input TRD either directly or via inverter IN and the other inputs are connected to a counter stages as shown. The signal TRD may be 0 or 1. When its value is 1, the output from amplifier OP is an increasing staircase waveform synchronized with the progress of the counter, and a similar decreasing waveform is obtained when the signal is 0.
Patent GB-433696-A (GB)
Title: Improvements in and relating to free wheel devices
IPC: F16D41/08
Filed: 1933-11-16
Abstract: 433,696. Free - wheel clutches. VRIENDT, J. A. DE, 18, Rue du Parc, Petite- Rosselle, Moselle, France. Nov. 16, 1933, No. 32029. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 18, 1934]. Application for addition to 405,343. [Class 80 (ii)] In a clutch according to the parent Specification, comprising toothed wheels 5 which are journalled on pins 6 carried by discs 7, 8 rotatably mounted on the driven shaft 9, are in constant mesh with a gear 10 rotating with the shaft 9, and co-operate, either directly or through the intermediary of roller extensions, with recesses 3 and inclined surfaces 3<1>, 3<2> in the inner periphery of a driving drum 2, a plate 14 rotatably and slidably mounted on the shaft 9 carries pins 15 which pass through apertures in the disc 8 and are adapted to be engaged in circumferential slots 16 in the drum 2 only when the latter is driving the shaft 9. With the pins engaged, unidirectional drive is transmitted, while if the pins are disengaged bidirectional drive is transmitted. Alternatively, the plate 14 may be mounted on the driving shaft 1, the pins passing through apertures in the drum 2 to engage circumferential slots in the disc 8.
Patent GB-382773-A (GB)
Title: Improvements in or relating to lever latches and hasps for doors and the like
IPC: E05C3/14
Filed: 1931-11-19
Abstract: 382,773. Thumb and lift latches. LEE, A. E., 156, Penns Lane, Erdington, Birmingham. Nov. 19, 1931, No. 32048. [Class 44.] A lift latch 1 is held in the fastened position by a pivoted hasp-like member 11 which engages over a fixed catch 14 and is retained by a padlock, pin or hook passed through a hole 15 in the catch. The latch may be pivotally mounted on a plate 3 by means of a boss 2, and a bolt 4 extends through this boss and the door and is engaged by a nut 5. The bolt 4 may support a plate 6 apertured to receive the padlock when not in use. The catch 14 may be secured to the plate 10, carrying the hasp-like member 11, by riveting or may be provided with a shank 12 which extends through the plate 10 and the door and is engaged by a nut. The latch may be operated by a fixed knob 7 having a stem passing through the door or by the usual transverse lever.
Patent GB-1312736-A (GB)
Title: Welding apparatus
IPC: B23K35/368
Filed: 1970-07-07
Abstract: 1312736 Welding by fusion PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 July 1970 [10 July 1969] 32133/72 Heading B3R The subject-matter is substantially that in respect of the illustrated apparatus of the parent Specification 1,312,735.
Patent GB-303256-A (GB)
Title: Improvements in fastenings for gates, doors, and the like
IPC: E05B63/24
Filed: 1927-12-01
Abstract: 303,256. Nettlefold &. Sons, Ltd., and Nicholson, W. F. Dec. 1, 1927. Latches, lift and thumb; latches, sliding.-A fastening for gates, doors, and the like comprises two lever-like elements a, i of which the element a is weighted at one end and adapted at the other end a<3> to engage an abutment f<3> on a bracket f carrying the other element i, the element i being manually operable to disengage the shaped end a<3> from the abutment f<3>. The bracket c is secured to the gate, and when the gate is closed the end i<2> of the release arm i lies above and over the back of the end a<3> of the lever a. To open the gate the long arm of the lever a or the lever i is lifted. When the lever i is moved to the dotted line position the end i<2> causes the part a<3> to be disengaged from the abutment f<3> and thereafter commences the opening movement of the gate.
Patent GB-521244-A (GB)
Title: Improvements in or relating to the treatment of fabrics for use in the manufacture of garments
IPC: D06M15/07
Filed: 1938-11-08
Abstract: 521,244. Treating textiles with liquids cellulose ester compositions. ADLER, W. Nov. 8, 1938, No. 32374. [Classes 2 (ii) and 15 (ii)] Fabrics which are to be used in the manufacture of garments, e.g. brassieres, are stiffened by impregnating them with a solution comprising a mixture of cellulose acetate dissolved in acetone and sandarac or other true resin of the kind suitable for making varnish also dissolved in acetone. The stiffened fabric may be used as an intermediate layer between two other fabric layers. For brassieres with two layers of material the stiffening solution may be applied to the fabric forming the outer layer, or in the case of a three layer garment the outer and inner layers may be of stiffened material.
Patent GB-288229-A (GB)
Title: Dust collector
IPC: B01D45/02
Filed: 1927-12-01
Abstract: 288,229. Landis Machine Co.. (Assignees of Moon, J. C.). April 8, 1927, [Convention date]. Air, washing.-A dust - collector, intended particularly for for shoefinishing ma- .chinery, comprises a box having a discharge member 19 detachably connected at an inlet in one of the walls and discharging the dust downwards into water and an opening, with a closure, in the roof or a wall. The member 19 is suspended by a link 21 from one of two attachments 22. Two air inlets 18 are provided one of which is plugged by a cap &c. 26. The member 19 is removable through the. lidded top. It is flared at the bottom to disperse the air over water in the sloping, plugged at the bottom of the box. Baffles 14, 15 remove spray from the cleaned air leaving the box. The dust generated by the tools 4, 5 is drawn into a conduit 8 by a fan 7 and passed to the box through a conduit 11. The box is supported from the framing 2, 3.
Patent GB-1181446-A (GB)
Title: Process for producing Amide-Imide Resins
IPC: C08G18/38
Filed: 1967-07-14
Abstract: 1,181,446. Bis-trimellitic acid imides. HITACHI CHEMICAL CO. Ltd. 14 July, 1967 [22 July, 1966], No. 32477/67. Heading C2C. [Also in Division C3] Trimellitic acid imides of formula where A is alkylene or where B is SO 2 , CH 2 , or O may be prepared from trimellitic anhydride and the corresponding diprimary amine. In Examples 1-4, imides derived from bis-(4-aminophenyl) methane, bis-(4-amino-phenyl) sulphone, hexamethylene diamino and bis-(4-aminophenyl) ether are prepared.
Patent GB-733811-A (GB)
Title: Improvements in or relating to printing mechanism for computing machines and the like
Inventor: PARKER CHARLES ALMER
IPC: B41J9/30
Filed: 1952-12-22
Abstract: 733,811. Typewriters. BURROUGHS CORPORATION. Dec. 22, 1952, No. 32492/52 Class 100 (4). Hammer impression arrangement.- In an accounting or like machine wherein adding type carriers are selectively movable to a printing position and are struck simultaneously by a common spring-actuated hammer, means are provided to increase the striking force with an increase in the' number of carriers to be struck. Type bars 10 are raised to the operative position by a bell crank lever 12 under the action of a spring 19, tensioned by the forward movement of an operating member 21 reciprocated at each cycle of a main drive shaft 29, when a horizontal extension 17 of an actuator slide 18 is allowed, by selection, to move forward to unlatch a latch 22. A hammer bar 32 strikes all the type bars thus raised simultaneously as shoulders 40 on a pair of snail cams 36 pass shoulders 41 on hammer levers 33 pivoted at 34 and urged against the cams by a main drive spring 37 (not shown). The shoulders 40 reach the shoulders 41 as the operating member reaches its most forward point. Means for increasing the hammer striking force comprising a booster spring 48 is brought into operation whenever a particular predetermined type bar, e.g. the fifth digit, is selected and a further booster spring may be provided connected to a still higher digit type bar actuating mechanism. The spring 48 is attached to a link 46 and to a stud 44 of a lever 43 pivoted at 42. To the lever 43 a throw link 50 is attached. When the booster means are inoperative a tie rod 38 of the hammer levers 33 moves freely in a slot 47 and the hammers strike under the action of the main drive spring only but when the particular digit connected to the booster means is selected depression of the latch 22 acts through an arm 56 to raise the throw link 50 so that a shoulder 51 is engaged by a lip 52 of the operating member 21. The forward movement of the member 21 forces back the lever 43 which tensions the spring 48 causing the link 46 to move forward so that the tie rod 38 is given additional load by engagement of the end of the slot 47 of the link 46 therewith. Thus when the hammer strikes it does so with the combined force of the main drive spring 37 (not shown) and the booster spring 48. In a modification, Fig. 6, only one drive spring 37<SP>1</SP> is provided which is attached to the tie rod 38 and the stud 44. In the rest position the lever 43 is held against a stop 59 but when an increased strike is required it is moved away therefrom by a throw link 50 as described above to increase the initial tension on the spring 37<SP>1</SP>.
Patent GB-1241822-A (GB)
Title: Transformers
IPC: H01F29/04
Filed: 1968-07-08
Abstract: 1,241,822. Transformer tap-changes. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 8 July, 1968 [7 July, 1967], No. 32504/68. Headings H1N and H1T. A transformer winding comprises, for each phase, a main winding part 1, a tapped winding 3 having an associated tap-changer 10 and providing fine regulation, and a further regulating winding 2 which can be switched into use when required, the switches being so arranged that when winding 2 is not energized its polarity relative to the main winding may be reversed by connecting its end 35<SP>1</SP> to the main winding end 37<SP>1</SP>. The further winding 2 may be untapped, providing coarse regulation, or it may constitute a second part of the tapped winding Two further windings may be provided, one untapped for coarse regulation and one forming a second part of the tapped winding, separate but co-ordinated switches being provided to reverse their polarities when respectively not energized (Figs. 21, 22, not shown). The transformer may be an autotransformer (Fig. 14, not shown). The switch may comprise two curved contact blades 30<SP>1</SP>, 30<SP>11</SP>, Figs. 2, 11, riveted or screwed to a common insulating member 30 and rotating about a spindle 43. Each fixed contact includes two fingers 41 resiliently engaging either face of the blades 30<SP>1</SP>, 30<SP>11</SP>. The blades bridge adjacent fixed contacts and may take up three different positions which connect (a) windings 1, 2 and 3 in series or (b), (c) windings 1 and 3 in series and one or other end of winding 2 to the point 37<SP>1</SP>. The three switch positions may alternatively be obtained using ganged or separate change-over switches (Figs. 3, 4, not shown). If separate switches are used they may be coordinated by means of gearing, relay control or electronic control.
Patent GB-1310719-A (GB)
Title: Electronic method and apparatus for the pattern formation in  circular knitting machine
IPC: D04B15/66
Filed: 1970-07-06
Abstract: 1310719 Programmed control of textile machines AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 6 July 1970 [7 July 1969] 32597/70 Heading G3N [Also in Division D1] An original for a three-colour pattern to be formed on a circular knitting machine, having 12 yarn feeders, is prepared as a diagram 1 and converted, course by course, to a binary coded tape 2. The tape is subsequently interrogated by a reader 3 and the red and blue signals fed through gates 4a, 4b, to corresponding pattern registers 5a, 5b. Each pattern register is composed of such a number of paired ring registers 6, 6'; 7, 7' as equals the desired number of knit positions in the pattern width. A register, say 6, is filled as its pair 6' is being used to control, through gates 8a, 8b and selection circuits 9a-c, needle actuators 10a-10p disposed on the outer peripheral surface of the knitting machine. The selection circuit 9b produces a pattern signal for the white colour when the pattern signals for red and blue are both absent. The completion of one course of knitting is detected by a counter 13 responsive to pulses from a generator actuated by the passage of a knitting needle. When the contents of the counter reaches a set total, a circuit 12 controls pattern registers 5a, 5b to change over ring registers 6, 6'; 7, 7'. A slanted knitted pattern is produced by increasing, or decreasing the set count in the counter 13 by one. A pattern can be omitted from a given area by interposing a circuit between registers 5 and selection circuits 9. The omitted pattern is temporarily stored on a magnetic core, disc or drum memory and can subsequently be inserted inverted or 90 degrees rotated.
Patent GB-167447-A (GB)
Title: Improvements in and connected with rotary compressors and centrifugal pumps
IPC: F04D25/02
Filed: 1920-11-18
Abstract: 167,447. Erste Br³nner Maschinen- Fabriks-Ges. Aug. 3, 1920, [Convention date]. Regulating or controlling.-To prevent the compressor I from " pumping " when working on the peak of its characteristic curve, a separate singlestage compressor II is operated by the same shaft and the discharge from the compressor I is further compressed in the compressor II so that the characteristic is displaced. The two compressors are separated by a partition and labyrinth packing d and during normal operation the pressure side of the compressor II communicates with the suction side of the compressor I through the valve v<1> while the valve v<3> is closed. When the compressor I works near the " pumping " zone, the valves v<2>, v<3> are opened and the valves v<1>, v<4> are closed.
Patent GB-791649-A (GB)
Title: Furnace installation
IPC: F23L9/00
Filed: 1956-10-25
Abstract: 791,649. Solid fuel furnaces. NAAMLOOZE VENNOOTSCHAP BRONSWERK. Oct. 25, 1956 [Oct. 26, 1955], No. 32618/56. Class 51 (1). In a solid fuel furnace with a combustion chamber fed with fuel from the top and traversed from front to back by combustion air according to Specification 698,098, secondary air is supplied to the gases leaving the combustion chamber from tubes each mounted behind and in contact with a water-cooled tube forming part of the rear wall of the combustion chamber. An air tube 18 is formed behind each vertical water-cooled tube 5 of the rear wall of the combustion chamber by welding a U-section channel to the sides of the tube 5. Diametrically opposed holes 19 in the sides of the air tube 18 deliver air perpendicularly to the direction of flow of the combustion products. The air tubes 18 are fed from a common air supply 17, connected to a blower 12 by a pipe 16. A damper 14 controls the proportion of air delivered to tubes 18 and to the air box 15 providing a primary air. Specifications 693,388, 698,097 and 698,100 also are referred to.