baber/WOPTO huggingface dataset:
Patent GB-589241-A (GB)
Title: Improvements in and relating to the manufacture of oleum
IPC: C01B17/74
Filed: 1944-09-22
Abstract: Oleum is produced by absorbing sulphur trioxide from converter or like gas in weak oleum which in dispersed condition and in contact with a horizontally disposed heat exchange surface contacts the gas, the temperature of a cooling medium which is circulated in indirect heat exchange with the oleum past the heat exchange surface being controlled at a predetermined figure by passing relatively cold water in heat exchange with the cooling-medium.  The gases containing sulphur trioxide are forced by a blower 2 through a chamber 3 and projecting inlets 4 up through a tower 1 and escape through outlet 7. Oleum of absorption strength is circulated in a closed circuit comprising the tower 1 and a reservoir 8.  Weak acid enters the reservoir 8 by a pipe 19 and is mixed with the effluent from the tower 1 prior to being elevated by pump 9 to the top of tower 1, whence it is distributed as a film over cooling elements 10 by a distributor 11, and returned by way of pipe 6, de-gassing unit 12, and pressure equaliser 13, and pipe 14 to a pipe 15 at the bottom of the reservoir from which a proportion of the product-acid (i.e. oleum produced) is conducted via pipe 16 which forms a hydrostatic column 17, to storage and the remainder escapes through an annular outlet 15a to the acid in the reservoir.  An automatic analyzer 18 actuates a control valve 19a to increase or decrease the flow of weak oleum according as the product acid is too strong or too weak.  Continuous circulation of cooling medium is maintained by a pump 22 which causes the cooling medium to flow, prefer ably <PICT:0589241/III/1> upwardly, through the cooling elements 10 and out through pipe 23 into receiver 24, from which it is withdrawn to the intake of pump 22 where it mingles with cold water pumped from a suitable source. An automatic temperature-responsive controller, situated at 30, actuates a control valve 31 to increase or decrease the amount of surface water introduced into the cooling circuit.  Gas that collects in the top of the degassifier 12 is returned to the bottom 3 of the absorption tower, and the oleum withdrawn from the unit 12 passes into the element 13, which is a hydrostatic column for equalizing the pressures, where any sulphur trioxide liberated is returned through pipe 38 to the reservoir 8.  This continuous process is suitable for the production of oleum of various strengths, and consequently the ratio by weight of the weak acid fed to the system and the acid circulated to the tower may vary between the preferred limits of 3 : 1 and 8 : 1.
Patent GB-1302814-A (GB)
IPC: H01M8/24
Filed: 1971-05-28
Abstract: 1302814 Fuel cell batteries SIEMENS AG 28 May 1971 [29 May 1970] 18194/71 Heading H1B A fuel cell battery, Fig. 1 comprises cells 1 ... 5 separated from each other by nickel sheets 6, the end cells 1, 5 having nickel sheets 9 connected to lead-off conductors 10. Each cell has an electrolyte chamber 11 and a gas chamber 12 separated from each other by an asbestos diaphragm 13. The anode 14 in chamber 11 comprises a nickel gauge coated with platinum or Raney nickel as catalyst and makes contact through a nickel gauge 15 with a sheet 6 or 9. The cathode 17 in chamber 12 comprises pulverous Raney silver, preferably bound by a hydrophilic plastics latex, or carbon powder activated with silver. A nickel gauge 18 maintains contact being the cathode 17 and a sheet 6 or 9. The chamber 11 is supplied with a mixture of fuel and electrolyte consisting of hydrazine dissolved in KOH and the chamber 12 is supplied with oxygen. In alternative arrangements the fuel may be methanol or the electrolyte may be acid. Sealing of the periphery of the cells 1 ... 5 is obtained by the asbestos diaphragms 13 and to this end their peripheral portions 21 are given a greater thickness by providing on either side asbestos gaskets 20, 22. The portions 21 of the diaphragms 13 are impregnated with an electrolyte-resistant synthetic resin, e.g. epoxy resin and the asbestos forming the gaskets 20, 22 is filled with a relatively soft electolyte-resistant plastics material, e.g. PTFE or PVC The portions 21 are bonded to the gaskets 20, 22 by curing the epoxy resin at elevated temperature. The several components are clamped together to form the battery by screw bolts 7. The reactants are supplied to the cells via aligned passages formed in the peripheral portions 21 the gaksets 20, 22, and sheets 6, 9. Fig. 3 shows another embodiment in which the asbestos sealing arrangement is applied to a battery in which the reactants are hydrogen and oxygen. The Fig. shows two intermediate cells 41, 42 of a stack, the stack ends being omitted. In this embodiment each cell comprises a gas chmber 43 for the hydrogen, a gas chamber 44 for the oxygen and a chamber 45 for the KOH electrolyte, these chambers being separated from each other by asbestos diaphragms 46, 47. The anode 49 consists of Raney nickel powder optionally containing a binder and the chamber 45 contains a spacer gauge 53 of nickel or plastics material. The cathode 51 is similar to that of Fig. 1. To obtain the sealing of the cells, the periphery 55 of the diaphragm 46 is thickened by asbestos gaskets 54, 56 and the periphery 58 of diaphragm 47 is thickened by asbestos gaskets 57, 59, the several components being clamped together by screw bolts, as in Fig. 1, after bonding of the gaskets to the diaphragms.
Patent GB-854154-A (GB)
Title: Improvements in and relating to the production of angular sections of glass
IPC: C03B13/08
Filed: 1958-06-06
Abstract: 854,154. Angular glass sections. MOOSBRUNNER GLASFABRIKS-A.G. June 6, 1958 [June 8, 1957], No,. 18230/58. Class 56. Angular sections of glass are continuously produced from plastic glass in strip form by devices which act on all sides of the strip simultaneously. As shown in Fig. 1 liquid glass runs out of the bath 1 through a roller 3 which produces a plastic glass strip. Strengthening and insulating inserts may be introduced into the glass before the smoothing rolls. The glass strip is guided on to an endless plate table 6 which feeds to an annealing and cutting device 7. The glass strip is shaped on table 6 from below, above and the sides by a shaping device 5 suspended from beams 4. Fig. 2 shows a section taken across AB on Fig. 1, 14 is a shaping element mounted on plate table. Shaping rolls 10 and 13 on drive shafts are mounted in frame 9. The shaping means may be heated to avoid cooling and cracking of the plastic glass ribbon 15.
Patent GB-439641-A (GB)
Title: Improvements relating to contact mechanisms for controlling electric circuits
IPC: H01H1/22
Filed: 1934-06-20
Abstract: 439,641. Switch contacts. SMITHSON, J. G., and SMITHSON & CO., Ltd., J. G., Lifford Lane, King's Norton, Birmingham. June 20, 1934, No. 18234. [Class 38 (v)] The contact arm a of a contactor is pivoted in such a manner as to be readily detachable, the co-operating parts of the fulcrum being held together by the joint action of the cam j and the controlling spring b on different parts of the arm. In the form shown the pivot is formed by a slot in a support d through which a narrowed portion of a tongue c extends.
Patent GB-1278865-A (GB)
Title: Improvements in or relating to external rear view mirrors for vehicles
Inventor: TALBOT YORCK JOACHIM
IPC: B60R1/076
Filed: 1970-04-16
Abstract: 1278865 Rear view mirrors Y J TALBOT 16 April 1970 18279/70 Addition to 1162618 Heading B7J An external rear view mirror assembly for a vehicle comprises a reflector 1 adjustably mounted on an intermediate member 2. First and second pin members 8, 9 are attached to the vehicle and intermediate member 2 respectively and are rotatably mounted at opposite ends of a pivotable arm 6. A steel band 10 positively connects cylindrical parts 7 of pins 8, 9 such that rotation of one pin effects corresponding rotation of the other whereby the orientation of the intermediate member 2, and hence the reflector 1, is maintained constant as arm 6 is pivoted about pin 8. The band has its two ends retained in a slot in pin 8, while pin 9 has a projection 12 for engaging holes 11 in the band. In further embodiments (Figs. 4, 5, not shown), the pins 8, 9 are held spaced apart by parallel horizontal straps, and the band 10 is shown in a modified form. In another modification, Fig. 6, the parallelogram linkage is effected by an odd number of interengaging gear wheels 15 held between horizontal guide straps 14, the end most gear wheels being integral with the pins 8 and 9 respectively.
Patent GB-203117-A (GB)
Title: Improved trousers stretcher
IPC: A47G25/68
Filed: 1922-07-04
Abstract: 203,117. Scanlon, T. July 4, 1922. Trouser stretchers and presses. - A trouser stretcher and press comprises top and bottom clamps B, C united by a hinged bar A which is adapted to be held in extended position by a locking plate E. Separate. side clamping bars are provided for pressing the creases of the trousers. The stretcher is hinged up by the strap F which may support a coat &c. Reference has b e e n directed by the Comptroller to Specifications 11579/84, 16777/84, and 22585/02.
Patent GB-1192487-A (GB)
Title: A Decorative Covering
Inventor: CHEONG-LEEN HILTON
IPC: B44C5/04
Filed: 1968-04-18
Abstract: 1,192,487. Ornamenting. HILTON CHEONG-LEEN, and CHOH-CHUN LING. 18 April, 1968, No. 18313/68. Heading B6G. Decorative coverings comprise decorative members interconnected by connecting members. In Fig. 1 a decorative member 1 has heart-shaped apertures 2 having projecting lips 3. In Fig. 3 a connecting member 5 for connecting two decorative members together has two heart-shaped raised portions 7 and flexible portions 8. One end of the connecting member 5 is inserted through aperture 2 and the raised portion 7 is then pressed so that the flexible portion 8 is squeezed through the aperture and contacts the under side of the decorative member 1. The decorative member may be made of plastics material. Decorative material such as table mats, coverings, tray cloths may be built up in this manner.
Patent GB-1450970-A (GB)
Title: Variable time ratio control
IPC: H02H7/08
Filed: 1974-04-26
Abstract: 1450970 Control of D.C. motors ALLISCHALMERS CORP 26 April 1974 [7 May 1973] 18349/74 Heading H2J Apparatus for providing a series D.C. motor M with variable D.C. of the type disclosed in Specifications and 1,448,496 and 1,448,497 includes a monitoring circuit for producing a signal to disable gate G3 and thereby reduce the duty cycle of the transistor power switch PS to a minimum equal to the duration of the pulse from monostable GPM, when an open circuit is present across a main potentiometer SPEED POT (adjustable by a foot pedal FP) owing to a discontinuous track or a faulty wiper. Transistor Q5 has its collector and base connected via a resistive chain including the potentiometer and a + 5 v. source is included therein. At all times when a non-open circuit is present across the potentiometer, the transistor T5 conducts and provides via inverter NOT 5 a "1" input to gate G3 at H. If open circuit occurs, this signal becomes "0" and disables G3. The gate G3 is then only open in successive cycles for the duration of the pulse output of GPM, also an input at H. Potentiometer SPEED POT and another potentiometer INCH POT are adjustable to vary the collector current of a transistor Q8 in a variable time delay circuit VDS, which is triggered by each pulse from an oscillator OSC and generates an output pulse on lead T0 after a time delay to turn off the switch PS.
Patent GB-984295-A (GB)
Title: Improved plastic tubes
Inventor: WEBB RONALD RICHARD
IPC: F16L11/04
Filed: 1962-05-12
Abstract: 984,295. Plastic tubes. HOWARD CLAYTON-WRIGHT Ltd. April 11, 1963 [May 12, 1962], No. 18351/62. Heading F2P. An extruded tube of transparent or translucent material has a lining of metal foil or a metallized plastics material film extending completely over the internal surface of the tube. The foil 11, which may be, e.g., of aluminium, is curved from strip into a tube with the edges of the strip slightly overlapping. The outer coating 10, which may be, e.g., cellulose acetate butyrate, is extended over the metal tube. The inner and outer tubes may be bonded together by coating at least the outer surface of the foil with a heat sensitive bonding agent in lacquer form which is activated during the extrusion. Preferably the inner surface of the foil is also coated with the lacquer to prevent corrosion.
Patent GB-813584-A (GB)
Title: Improvements in or relating to arresting devices for falling bodies
Inventor: LINDSAY GRAHAM EADES
IPC: G21C7/20
Filed: 1956-06-14
Abstract: 813,584. Energy-absorbing elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 31, 1957 [June 14, 1956], No. 18362/56. Class 103 (1). [Also in Group XL (a)] A device for arresting a falling body comprises an impacting member coupled to the body by means including a self-restoring energy-absorbing device, the means being releasable when the load on the energy-absorbing device exceeds a predetermined amount to allow the body to continue its fall free from the impacting member, and energy-dissipating means for finally arresting the body. The body, i.e. control rod 1 of a nuclear reactor, is connected by shank 11, Fig. 1, to a cylindrical head 6 having an integral lifting eye 13, the head 6 being integral with shank 11 with a frustoconical head between them; a cup 3, surrounding head 6, has a frusto-conical impacting face 15 and houses a spring 2 acting between the cup 3 and a ring 4 secured to head 6 by shear pins 5, a hole 16 in the base of the cup and bore 17 in ring 18 welded to the top of the cup allow the cup to slide on the head 6. To the lower end of rod 1 is attached a broacher arrester, Fig. 2, comprising an impact pin 7, a ring-shaped cutter 8 having a plurality of equally spaced cutters, and a stainless steel liner 9 held in a body tube 10 by sleeve 22 and adapter 19 which connects tube 10 to the rod 1, the cutter being housed in the pre-broached end of liner 9. The pin 7 has an upper part 24 bearing in adapter 19 and carries washer 27 and nut 28 on its end 29 to prevent withdrawal of pin 7. On failure of lifting eye 13, the rod 1 falls until the face 15 of cup 3 hits a complementary face in a hole in a charge pan of a nuclear reactor, the cup is arrested and the K.E. absorbed by spring 2, the load in spring 2 being taken by shear pins 5 which fail for a predetermined load and rod 1 continues to fall free from cup 3, ring 4 and spring 2, until impact pin 7 strikes an impact stool situated at the foot of the control rod channel, the broacher cutter 8 being forced along liner 9 so dissipating the K.E. of the rod 1, a helical groove 30 in liner 9 ensures that the cuttings produced are in the form of chips which will not cause jamming of the broach.
Patent GB-1021532-A (GB)
Title: Apparatus for uncoiling strip material
Inventor: SHUMAKER CHARLES STORER
IPC: B21C47/34
Filed: 1962-05-14
Abstract: 1,021,532. Unreeling. UNITED ENGINEERING AND FOUNDRY CO. May 8, 1963 [May 14, 1962], No. 18405/62. Heading B3E. Apparatus for unwinding coils of strip comprises the combination of a pair of opposed mandrels each having end portions adapted to be presented to protrude into one of the openings of the coil to rotatably support it, means for moving at least one of the mandrels relative to the other, a disc co-operating with each of the mandrels having surfaces for engaging the opposite sides of a coil, the discs being constructed and arranged to be brought from an operative position in which the discs are rotatably supported by the mandrels and positioned so that their surfaces may be contacted by a coil, to an inoperative position, in which the discs are positioned away from the mandrels and coil and vice versa and means for moving the discs between their operative and inoperative positions. A loose coil to be unwound is transferred to the uncoiling apparatus to come into contact with shockabsorbing rollers 30 on a frame 30a, which gives against piston and cylinder means 30b, and comes to rest either on a pair of short rollers 36, Fig. 3 (not shown), if the strip is narrow or, if the strip is wide, on a pair of long rollers 37 which would then be positioned below the coil. The rollers 36 and 37 are carried by a frame 35 rocked about a horizontal shaft 38 by piston and cylinder means 41 to position the correct pair of rollers 36 or 37 to support the coil, the frame 35 being locked in the selected position by pins 43 connected to piston and cylinder assemblies 44. Piston and cylinder means 21 then move heads 15 in towards the coil so that the sides of the coil are engaged by discs 22, rotatably mounted on sleeves 23 carried by mandrels 19, supported by the heads 15 and expanded to grip the sleeves 23. The strip may then be fed from the coil to a rolling mill. To then unwind a tightly wound coil the mandrels 19 and discs 22 are retracted by the means 21, the mandrels 19 are collapsed and further retracted by the means 21 and the discs 22 are swung down and away by arms 25 rocked by piston and cylinder means 33. The coil is then positioned by a coil lift 45, Fig. 3 (not shown), raised by piston and cylinder means 46 and the mandrels 19, now without the discs 22, are moved in to enter the openings of the coil and are there expanded to grip the coil. The mandrels 19 are driven from shafts 16.
Patent GB-421825-A (GB)
Title: A pressure-operated electric switch
IPC: H01H35/26
Filed: 1933-06-29
Abstract: 421,825. Actuation of switches. SMITH & SONS (NOTTINGHAM), Ltd., S., and WELLER, A. G., Basford Brass Works, Nottingham. June 29, 1933, No. 18492. [Class 38 (v)] In a pressure-operated switch in which a pressure-sensitive element 11 operates a switching member 53 to open and close contacts at predetermined pressures which are independently adjustable, and in which operative connection between the element 11 and the member 53 is established only at or in the region of the predetermined pressures, the adjustment means are readily accessible and are provided with an index. A Bourdon tube 11 operates, through links 49, 50, of adjustable length, on a pivoted arm 53 actuating a spring-controlled pivoted. lever 41 carrying a mercury switch 40. The adjustments are effected by respective cams 56, 61, which determine the position of the links 49, 50, along the length of the arm 53, and these cams are operated by knurled knobs provided with pointers and scales external to the switch casing. The Provisional Specification also describes a switch comprising a contact on the pointer of a Bourdon tube, and a co-operating adjustable contact.
Patent GB-121000-A (GB)
Title: Improvements in Engine Starters.
Inventor: BENDIX VINCENT
IPC: F02N15/06
Filed: 1917-12-13
Abstract: 121,000. Bendix, V. Dec. 13, 1917. Turning-gear.-An engine-starter comprises a driving-member such as a pinion 5 and a control member 4 connected together and mounted for longitudinal and rotary movement upon rotation of a member 1. In the form shown, the pinion 5 is mounted loosely on the armature shaft 1 of an electric motor A and is connected by a coil spring 6 to the control member 4, which is threaded to engage a screw shaft 2 forming an extension of the shaft 1. A sleeve 11, mounted on the member 4 and sliding on the part 5<a> of the pinion,. prevents the spring 6 from wedging in the space 10. The parts may be so arranged that the movement of the pinion 5 into mesh with the engine member is in a direction away from the motor A. In a modification, the control member 4 is fixed on the screw shaft 2, which engages an internal thread in the armature shaft.
Patent GB-268616-A (GB)
Title: Improvements in the manufacture of steel and in the treatment of same for the manufacture of edge tools
IPC: C22C38/18
Filed: 1926-07-24
Abstract: 268,616. Vegesack, A. E. G. T. von- July 24, 1926. Annealing; tempering.-Steel containing specified proportions of chromium, manganese, and carbon is heated for several hours at 700-800‹ C., and afterwards heated for 5-30 minutes at 400-500‹ C. Specification 254,762. (Class 82 (i), Metals, Extracting &c.]. is referred to.
Patent GB-185852-A (GB)
Abstract: 185,852. Friden, C. M. F. June 14, 1921. Adding and subtracting apparatus; differential mechanism.-In a machine of the cam-disc and pin-wheel type, the cam-discs 7 remain stationary during the rotation of the main shaft and according to their setting determine the periods of engagement between toothed members on the rotating pin-wheels 8 and the intermediate pinions 21. Each cam-disc mounted freely on the shaft 2 has a setting-ear 13, an indicating- plate 14 for observation by the operator, a cam 18 and aligning teeth 17 engaged by a detent 16. Associated with the cam-disc is a wheel 8 fixed on the shaft 2 and provided with a radially slidable toothed member 19 having a roller 25 for co-operation with the cam 18. Fig. 8 shows the action when the number 4 has been set; the member 19 has driven the wheel 21 through four teeth but owing to the position of the cam 18 is now withdrawing from engagement with the wheel. The sliding movements of the member can be effected in both directions positively by the use of a cam-race or by the addition of a backing cam-surface 26, or it may be moved in one direction by a spring.
Patent GB-558180-A (GB)
Title: A method of introducing a knitting yarn to the needles of an independent needle knitting machine
IPC: D04B15/54
Filed: 1942-05-15
Abstract: 558,180. Knitting-machines. TOONE (NOTTINGHAM), Ltd., B., TOONE, R. N., and ALLEN, T. L. May 15, 1942, No. 18622/43. Divided out of 557,458. [Class 74 (ii)] A splicing or other yarn S additional to the main yarn G at introduction is of such length that it extends from the feeder 12 to the knocking-over point K.O. so that the whole of the end is knitted in. The machine is that described in Specification 557,458. Specifications 532,520 and 532,586 are referred to in the Provisional Specification.
Patent GB-386555-A (GB)
Title: Improvements in overload electric switches
IPC: H01H71/40
Filed: 1932-07-01
Abstract: 386,555. Automatic circuit-breakers. LEYHAUSEN, W., 79, Bucherstrasse, Nuremberg, Germany. July 1, 1932, No. 18637. [Class 38 (v).] One coil d of an overload magnet c, d is adapted to be shunted by a flat spring f, adjustable by means of a screw s, and by the contact k of a bimetallic element t carrying the current. When the element t gets heated past the point to which it is pre-tensioned by the spring f, the coil d is inserted in the circuit. The coils are arranged so that c is responsive to short-circuits, whereas moderate overloads cause the element t after heating up, to remove the short-circuit from d which adds its effect to that of c and causes release. The coil d may then be of light gauge or high resistance material. Alternatively, the magnet c, d may be adjusted to release with the smallest increase over nominal current value, in which conditions, it is immaterial if, with continued nominal current, the element t opens the contacts k, f.
Patent GB-130013-A (GB)
Title: Improved Metal Planing or Trimming Machine.
Inventor: RATCLIFFE GEORGE
IPC: B23D1/26
Filed: 1917-12-15
Abstract: 130,013. Ractliffe, G., and Adams, R. E. F. Goold-. Dec. 15,1917. Broaching.-In a machine for trimming brass or other ingots or lengths of metal, the blanks are fed between fixed tools by an endless conveyer. The tools y, Fig. 2, are fixed to loose guides p which are pressed by adjustable springs s to grip the work. The work may be pressed down by a roller 3, or its upper surface may also be acted on by cutters. The conveyer, which is driven by an electro motor e, engages the workpieces, which may be supplied from a magazine by means of a tooth which may be cupped or otherwise shaped and projects through the slot n in the bed a. In a modification, the receiving- ends of the guides p, Fig. 4, are adjusted by eccentric sleeves 6 operated by a handle 8.