baber/WOPTO huggingface dataset:
Patent GB-218782-A (GB)
Title: Improvements in or relating to machines for making and filling bags or packets
IPC: B65B7/04
Filed: 1923-05-01
Abstract: 218,782. Day, A. May 1, 1923. Paper bags, making ; paper bags, filling.- The invention relates to machines for making and filling paper bags with tea &c., of the kind in which the material is fed into a funnel on the stem of which the bag is formed, such as is described in Specification 198,405, and consists in providing means for notching the paper sheet, whereby an " interlocking " fold is formed on the ends of the bag. A web of paper is drawn from a roll 17 by means of a feed-roller 38 through a punching device which comprises a punch c<13> and a die in a crossbar C. The cross-bar C is provided with bearings for vertical rods c<4>, c' on which slide members c<7>. c<10>, and c<14>, carrying an anvil c‹, the punch c<13> and a paper-gripper respectively. The members are spaced apart on the rods c<4>, c<5> by means of springs, which allow the paper to be held firmly while being punched. The punch is depressed-by means of cams c<16>, c<17>. The web of paper is severed across the orifice punched out as at b<1>, by means of a knife 103, and the sheet is wrapped round a funnel D, to which a charge of tea is delivered. The notched end of the blank projects below the end of the former D and a folder F advances to close the bottom of the bag. The top of a previously filled bag is closed simultaneously by the folder F, the bag being held in a mould E. A blade f<13> is advanced in an inclined position to engage the side h<1> of the tube remote from the recess and is then brought to a horizontal position by a cam f<21> engaging a roller f<17> on the tail of the blade, to fold the projecting part of the tube across the end of the former. The blade f<14> may be similarly operated, or a catch f<22> on the tail of the blade may engage a roller f<23>. A plunger f<24>, working in the body of the former F, is advanced to cause blocks f<34>, f<35> to crease the folded part of the bags against comer-posts d<1>, e<1> of the former and mould. The blocks f<34>, f3' are withdrawn and the blades f<13>, f<14> are held in horizontal position by cams during their withdrawal after the side folds h<5>, h<6> have been made and while the last fold is being completed. In the case of lined bags, the lining is made small enough to avoid being caught in the overlapping fold.
Patent GB-797463-A (GB)
Title: Improvements in and relating to carriers for moulds
IPC: B29C45/64
Filed: 1956-04-18
Abstract: 797,463. Injection-moulding machines. WUCHER, R. April 18, 1956 [July 1, 1955], No. 11766/56. Class 87(2). A carrier for moulds comprises three elements pivotally connected together and engageable around a mould to hold it in moulding position, the carrier being disengageable from the mould to enable the latter to be withdrawn. As shown, the carrier comprises two box-like parts 10, 11 open at one side (the right-hand side as shown) and pivoted together at 17. A third part 12 is pivoted at 18 to the part 10 and carries a locking lever 20 which engages a lug 22 on part 11. The carrier is mounted on the rotary table 30 of an injection-moulding machine, and a mould M is located within the carrier by adjustable plates 24 and screws 31, 32. The part 12 carries an injection gate 25 the orifice 26 of which registers with the mould entrance, and is formed with a recess 27 with which engages the nozzle or valve 28 of an injector. The locking means 20, 22 may be supplemented by further locking levers mounted on parts 10, 11.
Patent GB-375921-A (GB)
Title: Improvements in and relating to sound reproducing instruments
IPC: H04R11/00
Filed: 1931-04-21
Abstract: 375,921. Loud-speakers. DAVIS, S., 59, Billington Road, New Cross, London, and DELFOSSE, E. J. L., Chivilcoy, Astons Road, Moor Park, Rickmansworth, Hertfordshire. April 21, 1931, No. 11802. [Class 40 (iv).] A loud-speaker driving unit comprises one or more permanent magnets and a set of laminations forming the polepiece, the laminations being held together by rectangular or other shaped rings which embrace the ends of the laminations and are provided with internally screw-threaded sockets to receive screws for holding the laminations and one end of the magnet or magnets to a base. As shown, a pair of bar magnets b, c are spaced apart on a base-plate a with like poles pointing in the same direction and a single polepiece comprising a number of inverted T-shaped laminations d is placed on top of the magnets at one end. The bottom of the laminations may be formed with a slight projection d<1> which takes into the space between the magnets. The laminations are held together by rings e which engage over the horizontal arms thereof and are formed with threaded sockets f which are engaged by screws g passing through the base a. The magnets are bridged at the other end by a member h to the upper surface of which is secured one end of the reed j, the reed, member h and magnets being secured to the base by a single screw k located between the magnets. The reed can be adjusted with respect to the polepiece by means of a screw o engaging a V-shaped member secured to the reed.
Patent GB-570560-A (GB)
Title: Improvements in and relating to pipe obturating devices
IPC: F16L55/10
Filed: 1941-09-15
Abstract: 570,560. Stopping pipes. ALBON, F. G. Sept. 15, 1941, No. 11809. [Class 99 (ii)] A device for stopping pipes leading to storage tanks for oil, petrol &c. consists of a cylindrical body 3 slightly smaller in section than the pipe 1 and means associated with the body intermediate of its ends and engaging in a recess 2 in the wall of the pipe to lock the body against movement longitudinally of the pipe, the body 2 in the locked position being wholly within the pipe. In one form, Fig. 1, recesses 2, 4 in the pipe 1 and body 3 are engaged by a split spring ring 5, which is compressed into the recess 4 when introducing the body 3 into the pipe and then expands to engage the recess 2. In a modification, Fig. 4, the body 3 is provided with bolts or plates 6 locked by a cylinder lock 7 in engagement with the recess 2. The body 3 bears on a shoulder in the pipe 1 and a spring sealing plate or a leather cup may be provided at this point. Specification 214,349, [Class 99 (ii)], is referred to.
Patent GB-826516-A (GB)
Title: Improvements in fire-guards
IPC: F24B1/192
Filed: 1957-04-11
Abstract: 826,516. Fireguards. NICHOLS & SON Ltd., J., JONES, L., and TOMPKINS, G. H. July 8, 1958 [April 11, 1957], No. 11819/57. Class 126 [Also in Group XXV] A fireguard for domestic use has a fastening device 8 at each side for engaging retaining parts such as eyes 9 on the sides of a firegrate, each device comprising an arm 11, cranked at 17 and having a horizontal part 13 hinged to the fireguard at 14, and a resilient arm 12, capable of movement to the position shown in broken lines in Fig. 3 for entry into or withdrawal from the eye 9, and being adapted, as by being formed with a shoulder 16, to lock the device to the eye 9. The device 8 may lie against the diverging side walls 2 of the fireguard to allow a plurality of fireguards to be nested one with the other and be swung into operative position, a stop 18 limiting the swinging movement. The front of the guard may comprise upper and lower drop panels to give access to the grate and the fastening devices 8. In a modification, Fig. 4, the arm 11 is welded to the side 2 of the guard and the arm 12 has a recess 20 to engage the eye 9.
Patent GB-912285-A (GB)
Title: Improvements in electronic logical circuits
IPC: H03K3/45
Filed: 1958-04-14
Abstract: 912,285. Transistor switching circuits. ELDRIDGE, D. April 14, 1959 [April 14, 1958], No. 11825/58. Class 40 (6). [Also in Groups XIX and XXXIX] A switching circuit, suitable, for example, for use as an element in a digital computer, comprises a saturable ferrite core C having an input winding I connected between the emitter and collector electrodes of a transistor T, the collector and base electrodes of which are supplied with a conditioning voltage, Fig. 1a, from a terminal A through respective impedances L and R. As shown, impedance L comprises a winding on a further saturable core; it may, however, be replaced by a resistor, Fig. 4 (not shown). Input, which may be taken from the output of a preceding similar circuit, is applied to the base of transistor T. When a zero level input is applied the transistor T conducts during the negative portions of the conditioning voltage and so short-circuits the winding I which consequently carries insufficient current to change the state of the core C so that no output is developed in the output winding 0. The winding L (or the resistor replacing it) limits the current flowing through the transistor, this current being just sufficient to set the core C<SP>1</SP> which is then reset during the following positive excursion at point A. When a positive input is applied to the transistor, however, the transistor does not conduct during the negative portion of the conditioning voltage so that current flows through the winding I to set the core C and cause a negative pulse output to be generated in the. output winding. During the ensuring positive excursion the core is reset and a positive output pulse generated. A plurality of such circuits may be connected in cascade, Fig. 2 (not shown), to act as a shift register, alternate stages being supplied with suitably de-phased conditioning voltages, Fig. 3 (not shown).
Patent GB-493956-A (GB)
Title: Improvements in connection with filters
Filed: 1937-04-26
Abstract: 493,956. Filters. CANDY, F. P. April 26, 1937, No. 11831. Addition to 437,275. [Class 46] In filters provided with a lower pipe reticulation for the distribution of up-wash water and an upper reticulation for the simultaneous supply of air, as described in the parent Specification, various arrangements are made in connection with the air-supply pipes which ensure that sand shall not choke the apertures therein or enter the pipes. As shown in Fig. 1, the air-supply pipe a in the neighbourhood of each aperture b is surrounded by a shield c of wire gauze held away from the pipe by a coil d, the ends of which are arranged to prevent the entry of sand. A rubber sleeve d, Fig. 2, cut away around the aperture b may take the place of the coil. As shown in Fig. 3, the shield c is of stiffer material and held away from the pipe a by rubber rings d. The shield c itself may in this arrangement be formed of a wire coil. Fig. 6 shows a shield c resting eccentrically on the pipe and kept in position by rubber rings e. The shield may be imperforate, the air passing out between the ends of the shield and the rings. Figures 7 and 8 show arrangements in which each aperture has a pin f extending therethrough, no shields being provided. The pipes a may have means as described in Specification 473,480 for the discharge of water collecting therein.
Patent GB-619227-A (GB)
Title: Improvements in and relating to electrical devices for repeating or transmitting angular displacements
IPC: G08C19/02
Filed: 1946-04-17
Abstract: 619,227. Electric indicating systems. SOC. ANON. JAEGER-AVIATION. April 17, 1946, No. 11852. Convention date, April 19, 1945. [Class 40 (i)] [Also in Group XXXVI] Angular movement of a potentiometer arm 6, Fig. 1, on a closed resistance 7 is repeated by a resultant field receiver 3 whose windings 2 are connected to at least three tappings on the resistance 7, the source of potential connecting the common points of the windings 2 and the arm 6. The resistance 7 may be arranged in # form, Fig. 2 (not shown), or in rectangular form for receivers with four windings, Fig. 3 (not shown). Preferably, the arm 6 is maintained in vibration by an electromagnet 4, Fig. 4. The invention is stated to be applicable to measuring pressure, temperature, liquid levels, and photometers, automatic pilots and tachometers.
Patent GB-646311-A (GB)
Title: Improved method of making bread with untreated and unbleached flour
IPC: A21D2/04
Filed: 1948-04-30
Abstract: In making bread from flour untreated with chemical bleaching agents and to which no chemical bleaching or improving agents have been added, an aqueous batter of such flour is aerated with air or oxygen, and the dough for baking is produced by adding to this batter the yeast and the remainder of such flour.  For example, 140 lb. of an 85 per cent extraction flour, produced in a milling operation in which there were no divides, and nothing was taken from or added to the flour, is mixed with 5 lb. of salt and 15 gal. of water in a dough mixing bowl with a stirrer operating at 150 r.p.m., and air is whisked or beaten into the mixture at the same time until resistance to mixing has reached a maximum, whereupon a further 140 lb. of the flour, the yeast, and, if desired other dough ingredients exemplified by milk products, shortening, malt preparations, vitamin or iron enrichment, are incorporated into the mixture, in the same or another container with the aid of a dough mixing arm.
Patent GB-1412097-A (GB)
Title: Tank for storing low-temperature liquids
IPC: F17C13/12
Filed: 1974-03-18
Abstract: 1412097 Detecting leakage in cryogenic tanks MITSUBISHI JUKOGYO KK 18 March 1974 [17 March 1973 29 March 1973] 11977/74 Heading F4P A cryogenic tank comprises an outer tank wall 1, an inner liquid impervious barrier 3, and thermal insulation 2 therebetween divided into layers 2a, 2b by an intermediate liquid impervious barrier 11 which has, on its side facing barrier 3, a capacitor layer 4 in the form of a lamination having, from barrier 11 inwards, an aluminium foil 10, an electrical insulation layer 9, a perforated aluminium foil 8, and a perforated sheet 7, so that any leakage of low-temperature liquid through the barrrier 3 penetrates via the passages 7a, 8a in foil 8 and sheet 7 into the electrical insulation layer 9, and consequently changes the capacitance of the capacitor layer, which capacitance change can be detected by some monitoring device. The layer 4 and barrier 11 can be made from a plurality of panels such as that shown in Fig. 4, the panels having holes 12 to establish communication between the electrical insulation layers 9 of the panels. Leads 13 lead to a capacitance meter. Eeach panel can have its own respective meter or they may all be connected to a single meter, or groups of panels may be associated with a single meter. If a single meter is used for all panels, it may have a scanning system for monitoring individual panels or panel groups. Nitrogen gas is circulated through the electrical insulation layer 9 by a fan 14, the gas passing through a gas analyser so that if gas rather than liquid penetrates into layer 9 this will be immediately detected by analyser 15. The layer 9 may have a honeycomb structure whereby, in use, the material between the cell walls contracts to form spaces with the walls through which the nitrogen may be circulated (Figs. 6 and 7, not shown). The tank shell may be of steel, the heat insulation of foamed plastics and the inner barrier 3 of fibreglass reinforced plastics sheets of polyurethane or of epoxy sheets. Barrier 11 is made from impervious synthetic resin and layer 9 is preferably formed from foamed plastics of open cell structure. The panel frame 6, layer 7 and barrier 11 may be all made of fluoroethylene.
Patent GB-289438-A (GB)
Title: Improvements in or relating to gas compressors
IPC: F04B39/00
Filed: 1928-04-24
Abstract: 289,438. British Thomson-Houston Co., Ltd., (Assignees of Steenstrup, C.). April 27, 1927, [Convention date]. Check lift valves. -The outlet valve of a compressor consists of a thin rigid disc 16, Fig. 2, having a flat rim portion seating against the cylinder end and a dished middle portion; a spring disc 25 tends to seat the valve. The end of the piston is concave, to fit the valve. The cylinder 6 of the pump oscillates in trunnions 7, 8, Fig. 1, the piston being driven by a wrist pin 4 from the motor shaft 2. An inlet passage 13 communicates with the cylinder interior, in a certain angular position. The pump is applicable to domestic refrigeration apparatus operated electrically, as described in Specification 284,730.
Patent GB-1375249-A (GB)
IPC: G01L3/26
Filed: 1972-03-15
Abstract: 1375249 Measuring engine performance CONOFLOW CORP 15 March 1972 [15 March 1971] 12050/72 Heading G4H A system for calculating the Fuel BHP of an engine according to the equation comprises a first means for detecting a predetermined engine RPM, second means for registering and storing an indication of the quantity of fuel consumed per unit time at that RPM and means for controlling the above operations and computing the desired BHP therefrom. The system operates in two stages; the first calculating the time for a predetermined number (N) revolutions of the fuel pump and the second computing the desired BHP therefrom.  Setting up.-The desired RPM is set up in programmable selector network 13. The load at which the test is to be performed is set up in load inhibit 30; this will stop the test if the load drops below this value for more than 0À2 second. The number of revs. of the fuel meter (N) is set up at 24 and 36 and meter rev. counter is set up with the number of pulses generated by the meter per revolution. The engine factor is set up in programmable frequency divider 34 and the meter factor in programmable meter factor pulse frequency generator 35. Measuring time for N revs. of fuel meter.- When the engine has reached the desired RPM, network 13 enables flip-flop 14 and opens gate 17. Pulses from oscillator 18 pass to register 19 and thence to memory 27 and readout 29. The meter pulses are counted at 22 which emits one pulse to 24 per rev. of the meter, and when N revs. have been completed selector 24 disenables flip-flop 15 and closes gate 17. If oscillator 18 generates 100 Hz readout 29 shows the time to N revs to 0À01 sec. Calculation.-The calculation is initiated at 33. 10 MHz pulses from oscillator 18 are divided by the engine factor at 34 and by the time for N revs. (from memory 27) at 32 give a frequency D 4 . A further output from the oscillator 18 is modified at 35 to produce pulses of frequency proportional to the engine factor. This frequency is divided by N at 36 and is then used to control pulse multiplier 37 which both multiplies D 4  by N and by the meter factor divided by N. The resulting product is fed to totalizing register 19 and thence to readout 29. The system must be cleared before another reading can be taken.
Patent GB-185157-A (GB)
Title: Improvements in disk steel wheels
IPC: B60B23/10
Filed: 1921-04-27
Abstract: 185,157. Forsyth, G. H. April 27, 1921. Disc wheels. - A disc 24, Fig. 2, is formed with a felloe portion 33 the margin 35 of which is arranged to form a stop against which a demountable rim member 38 is clamped by means of a ring 31 bolted to the felloe, and is dished so that the parts adjacent the hub and rim axe in front of the central plane of wheel and the intermediate part is in rear thereof. The rim-retaining ring 31 takes a bearing on a shoulder 30, and the felloe may be pressed outwards at intervals as shown at 36 in such a manner that the sides 39 of the pressedout portions are not normally in contact with the rim but provide a reserve seating therefor when the wheel is distorted under excessive stresses. The intermediate part of the disc may be formed with two shoulders 28, 25 to bear on the brake drum and hub filling piece 26 respectively, or the shoulder 28 may be dispensed with. In a modification, Fig. 4, the rim is divisible, the inner part 42 being seated on the shoulder 33 and on a stop flange 35 formed by turning the margin of the disc upon itself. The outer member 41 is secured to the inner member, and the complete rim to the disc by bolts 34.
Patent GB-1160851-A (GB)
Title: Improvements in Calender Machinery
IPC: D21G1/02
Filed: 1968-03-13
Abstract: 1,160,851. Calender rolls. KARLSTADS MEKANISKA WERKSTAD A.B. 13 March, 1968 [23 March. 1967], No. 12130/68. Heading F2U. A calender roll 2 consists of a series of discs 5 of biaxially oriented plastics sheet material mounted on a central core 1 and axially compressed between end plates 4 by nuts 3. The discs may be of polyester, polyolefin, polyamide or polystyrene sheet which has been treated by stretching in at least two directions at a comparatively high temperature whereby the molecules are to a great extent oriented in the plane of the sheet and are of an essentially crystalline structure. The treatment reduces hysteresis loss due to deformation of the roll in the nip and thus reduces the temperature rise in use.
Patent GB-221533-A (GB)
Title: Improvements in or relating to the regulation of temperature conditions in a body of molten glass
IPC: C03B17/06
Filed: 1923-05-07
Abstract: 221,533. Danner, E. May 7, 1923. Drawing. - Relates to a method of manufacturing sheet glass continuously in which a broad flat stream flows over a directing medium to the forming-point, and consists in passing the stream through a tempering and controlling zone where it is subjected to heat and flow conditions that are separately controllable at different points transversely to the direction of flow, in order to regulate the flow and temperature of the glass throughout the width of the stream. The apparatus consists of a trough 3, Fig. 1, which extends from the front of the tank 1 to a hopper 4 that forms part of the sheet-forming apparatus. The trough forms an elongated tempering gallery for the glass which flows through it in a shallow stream. It is divided into an initial tempering- chamber 6, and a main chamber 7 by gates 8, 9. The gate 8 consists of a number of slabs suspended from cables 33 which are connected to a controlling hand-wheel 38. The length of each cable is adjustable, so that the gate may be adjusted not only to vary the total flow of metal through the trough, but also the flow from different points in the width of the stream issuing from the chamber 6. The gate 9 is similarly constructed and its position is controlled by a hand-wheel 44. The chamber 7 is divided into transverse sections or zones 17, Fig. 3, by a number of longitudinal partitions 16. These partitions consist of a number of slabs suspended from rods 18 which are connected by adjustable cables 20 with a hand-wheel 26 which enables the height of each partition above the floor of the trough to be adjusted. Thus by adjusting the position of the partitions and the gates, the flowing stream can be divided into zones of which the flow can be regulated, and the temperature of each zone can be controlled by means of burners 48, Fig. 1, the flames from which are projected through narrow vertical openings 47 in the gate 9. The sides of the stream are confined by low walls 51, Fig. 3, which prevent the edges of the flowing metal from being cooled by contact with the side walls of the trough. The metal flows into the hopper 4 and then over the sides of a slab 62 whence it is drawn away as a sheet. The slab 62 may be disposed vertically or it may be inclined as described in Specifications 126,747 and 159,114. The glass in the tank 1 is preferably maintained at a temperature of 2000 to 2100‹ F., the temperature being gradually lowered to about 1800‹ F. in the hopper and to about 1500‹ F. on leaving the chamber 63.