baber/WOPTO huggingface dataset:
Patent GB-660951-A (GB)
Title: Pneumatic feeding and conveying systems
IPC: B65G53/66
Filed: 1949-07-07
Abstract: 660,951. Pneumatic conveyers. BOZICH, M. J. July 7, 1949. No. 17957/49. Class 78 (i). A conveying system (Fig. 1) comprises a feed hopper 1 discharging into a pneumatic conveying conduit 8, means 11 for supplying a stream of air into said conduit, to move the material thereby and a device 46 operative when the pressure in said conduit rises above or falls below a pre-determinal value to control the movement of the material into the conduit. Fig. 1. Material falls from hopper 1 past pivoted valve 21 into hopper 2 until the level of material in the latter actuates switch 38 which then switches on motor 12 to drive fan 11. Fan 11 drives air along conduit 9 to discharge the material out by conduit 8, the pressure in conduit 9 being sufficiently high to actuate switch 46 which maintains the motor circuit when switch 38 automatically closes. The air also passes by conduit 13 and blows against valve 21 to swing it anticlockwise to keep the latter closed to prevent further inlet of material. When the material in hopper 2 is completely or nearly completely discharged the air pressure in conduit 9 falls and actuates switch 46 to cut out the motor. Switch 46, alternatively, may vent the fan to atmosphere or may cut out the motor when the hopper 2 is incompletely discharged. Also the loss of pressure allows valve 21 to fall and to open and then the cycle of operations begins again. Fig. 4. When the material surges (due to arching) it tends to cause excessive material discharge and therefore wear on the motor, and to prevent this there is included in conduit 13 a valve 60 which is actuated by the air pressure to operate solenoid 70 to close the conduit by means of valve plate 69. Thus the material is discharged chiefly by pressure from conduit 9, and therefore more slowly, without straining the motor until the pressure inside hopper 2 falls to normal value and allows valve plate 69 to return to its normal position to free conduit 13. Fig. 3. Valve 21 is pivoted at 24 and is counterweighted at 27 so that normally it is biassed against gasket 19 of valve seat 18 but yields when the air stream through pipe 13 is cut off and then allows material to fall.
Patent GB-257873-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/58
Filed: 1925-06-04
Abstract: 257,873. Automatic Telephone Manufacturing Co., Ltd., and Tench, F. June 4, 1925. Drawings to Specification. Automatic exchange systems.-A district office subscriber on calling is extended to a repeater with which are associated three hunting switches. One of these hunts for and seizes a trunk to the main office in which a register controller responds to the impulses dialled. The others select but do not seize ,a local selector and a line to a manual operator respectively. In response to particular numbers, the register controller sends back distinctive signals (a) to release both hunting switches (b) to cause one of them to switch-through, the other and that over which the main exchange was reached, being released. When the. call is extended to local selectors the calling line is extended metallically. Th system described is identical with that described in Specification 257,662. The claims relate to the operation of the hunting switches. Specification 194,580 is referred to.
Patent GB-488055-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/26
Filed: 1937-06-28
Abstract: 488,055. Steam turbines. BRITISH THOMSON-HOUSTON CO., Ltd. June 28, 1937, No. 17963. Convention date, June 26, 1936. [Class 110 (iii)] In a turbine consisting of a high- and a low-pressure part 29, 44 arranged in tandem, a bearing 30 has one end disposed in the exhaust space of the high-pressure part and the other end in the exhaust space of the low-pressure part. The wall 50 of the exhaust casing of the high-pressure part, adjacent the low-pressure part, forms part of the conduit 12 connecting the turbine stages and also a support for the bearing 30 which has at least one portion dis-' posed within the exhaust space of either the high-pressure or low-pressure part. The conduit 12 may be formed by the walls 55, 56, 57 and 50 of the exhaust casing of the highpressure part and the curved wall 49 of the low-pressure part. These wall elements are fabricated and united by fused metal preferably welds. The high-pressure casing 20 has a flange 24 which is secured by bolts 25 to a ring 26 forming a flange for the outlet end 21 of the stage. The low-pressure divided-flow part 44 has a casing comprising inlet portions 31, 32 facing each other and outlet portions 33, 34 secured together by bolts 35, 36. The inlet portions 31, 32 have recesses 37, 38 which locate them with respect to the casing walls 39, 40. These walls 39, 40 together with the curved outer wall 41 form an annular inlet chamber for the low-pressure part. The lower portion of the conduit 12 is formed by a member 59 which communicates through an opening 60 with a conduit 61. This allows a portion of the elastic fluid and the major portion of the condensed steam discharged from the highpressure part to be drawn off. A collecting channel 62 attached to the casing by bolts 63 traps any liquid particles carried in the upward direction. There is a pressure drop across the ends of the bearing 30 and to prevent the entrance of elastic fluid both ends are provided with labyrinth and water sealing elements 64. A flange 67 welded to an extension 66 attached to the wall 51, 53 of the low-pressure part supports the generator driven by the turbine.
Patent GB-640627-A (GB)
Title: Improved means of adjusting and locking the backrest of a chair or the like
IPC: A47C7/40
Filed: 1948-07-05
Abstract: 640,627. Clamps. TAN-SAD CHAIR CO. (1931), Ltd., and GABB, A. H. July 5,1948, No. 17974. Addition to 580,113 [Class 44] [Also in Group XIV] The socket described in the parent Specification is modified by being formed in two complementary parts c (see Group XIV) which together with a screw d' having a hand wheel d form a clamp for the back rest stem e, (see Group XIV) of a chair &c.
Patent GB-1141929-A (GB)
Title: Magnetohydrodynamic machine
IPC: H02K44/10
Filed: 1966-04-25
Abstract: 1,141,929. Generators operating by electromagnetic interaction with fluids. BROWN, BOVERI & CO. Ltd. 25 April, 1966 [27 April, 1965], No. 18001/66. Heading H2A. An MHD generator comprises a plurality of pairs of electrodes, each pair being embedded in opposite sides of the insulating walls of the duct for ionized gas, the electrodes having elongate ribs for projecting into the gas flow and extending in a direction parallel to the gas flow direction, the downstream end edges of the electrodes at one side of the duct and the upstream end edges of the electrodes at the other side of the duct lie at an obtuse angle to the duct walls of 90 degrees + #, where tan T is the Hall-effect factor. A pair of such electrodes in duct walls 5 is shown in longitudinal cross-section in Fig. 3, and one electrode, 8, is shown in transverse cross-section in Fig. 4. The gas flow direction is from left to right, Fig. 3, and the magnetic field has the direction shown at 3. The lower electrode, 8, having the specified angle at its downstream end edge, is negative, and the upper electrode, 8<SP>1</SP>, having the specified angle at its upstream end edge, is positive. The other end edge of each electrode may lie at an acute angle to the duct walls of 90 degrees -#, as shown, or at 90 degrees thereto. Preferably the ribs on the electrodes are mutually offset in the gas flow direction.
Patent GB-499873-A (GB)
Title: Improvements in or relating to the treatment of textiles
Inventor: ERNEST BUTTERWORTH
IPC: D06L4/70
Filed: 1937-06-28
Abstract: In bleaching cellulosic materials by the process described in the parent Specification the alkaline solution of an oxidizing bleaching agent is a solution containing hydrogen peroxide and sodium carbonate.  Such a solution may be obtained, for example, by dissolving together in cold, and preferably hard, water sodium peroxide and sodium bicarbonate.  The goods may also be scoured with a liquor containing hydrogen peroxide and sodium carbonate prior to the treatment with the buffered hypochlorite solution and the solution used on a previous batch of material in the alkaline peroxide bleaching step may be used for this purpose after suitable adjustment of its alkali and/or peroxide content.  In examples: (1) linen yarn is scoured for 3 hours with a soda ash solution at 65 DEG C., washed, treated in subdued light for 1/2 hour on a reeling machine with a solution at 15 DEG  C. of a hypochlorite solution buffered with sodium bicarbonate to pH= 6,5, rinsed, soured with dilute hydrochloric acid, washed, entered into a bath at 35 DEG  C. containing sodium peroxide, sodium bicarbonate and sodium silicate with heating to 65 DEG  C. during 1/2 hour and continuing at this temperature for 2 1/2 hours, washed and dried to obtain a good half-white bleach; (2) linen yarn is scoured for 2 1/2 hours with a liquor at 65 DEG  C. comprising the used peroxide liquor of (1) with an addition of soda ash, washed, treated as in (1) with a buffered hypochlorite solution containing less available chlorine than in (1), rinsed, soured, treated as in (1) with the peroxide bleaching solution, washed, treated for 1/2 hour with another buffered hypochlorite solution containing still less available chlorine, again treated in a similar but weaker peroxide solution, washed, treated again in a still weaker buffered hypochlorite solution, washed and dried to obtain a full white bleach.
Patent GB-258555-A (GB)
Title: Articulated coupling adapted to permit misalignment of two shafts, especially for power transmission in electric railway vehicles
IPC: F16D3/00
Filed: 1926-07-19
Abstract: 258,555. Maschinenfabrik Oerlikon, (Assignees of Laternser, A.). Sept.. 16, 1925, [Convention date]. Universal couplings. - A rotary coupling adapted to allow angular or parallel disalignment of two shafts, such as the road wheel shaft and stub axle carrying the transmission gear of an electric locomotive, comprises links 2 pivoted to pins 1 on the road wheel or driven member 10 and to levers 7 carried on pins 3 on the driving gear 11, the adjacent ends of the levers 3 being mutually connected by links 8 pivoted to a block 4 slidable in a guideway 5 and may embody spring means to render the drive elastic.
Patent GB-356315-A (GB)
Title: Improvements in carbon paper holders
IPC: B41L1/16
Filed: 1930-06-13
Abstract: 356,315. Carbon - paper holders. KELLY, C. L., 75, West Van Buren Street, Chicago, U.S.A. June 13, 1930, No. 18187. Convention date, April 28. [Class 16.] A carbon-paper holder for use in typewriters &c. consists of a backing sheet 2 of oiled paper &c. having at one end a folded flap 3 under which the carbon papers are inserted and aligned against the fold, and a flexible strip 6 of celluloid &c. which is interlaced through spaced slits 5 in the flap 3, backing-sheet 2, and carbon papers. The ends of the strip 6 are rounded to facilitate insertion through the slits, and the central portion 8 of the strip is of greater width than the end portions to form a stop between the two central slits 5 to prevent displacement of the strip, the narrower ends being interlaced separately through the central slits outwards. The lower edge of the strip 6 .serves for aligning the interleaved letter-paper.
Patent GB-379445-A (GB)
Title: Improvements in inflatable tubular life-saving or swimming and bathing appliances
IPC: B63C9/105
Filed: 1931-06-25
Abstract: 379,445. Valve accessories. LORD, H., 17, Riversdale Road, Murrayfield, Edinburgh. June 25, 1931, Nos. 18350 and 23211. [Class 135.] Protecting covers.-A short stem] metal inflating valve 15 is protected by a smooth cap 20 of indiarubber, textile fabric, or other soft resilient material, which is attached to the tube 10 by adhesively securing an extension 21 on the cap to the tube, or by forming the cap on an elastic ring which encircles the tube, or by securing the cap to a chain or flexible wire. Alternatively, the valve nozzle 15 may have a dome-shaped extension which encloses the nut 13.
Patent GB-907314-A (GB)
Title: Filter network
IPC: H02M7/539
Filed: 1957-10-17
Abstract: 907,314. Filter circuits. CLIFTON, J. B. M. Sept. 18, 1958 [Oct. 17, 1957], No. 18383/62. Divided out of 907,311. Class 40 (8). A filter circuit which may form part of an inverter as disclosed in Specification 907,311 comprises a winding 143 (which may be the secondary winding of a transformer) and one or more series tuned circuits of capacitance and inductance 152, 152<SP>1</SP>, 152<SP>11</SP>, each tuned to a harmonic frequency component of the input current, in shunt with the winding, the complete shunt circuit being tuned, by the inclusion of a shunt capacitor 144 if needed, to the fundamental frequency.
Patent GB-516134-A (GB)
Title: Improvements in or relating to electrical contact spring operating equipment
IPC: G04C23/22
Filed: 1938-06-21
Abstract: 516,134. Snap-action switches. STANDARD TELEPHONES & CABLES, Ltd., STOCKS, H. R., and BOWSHER, E. A. H. June 21, 1938, No. 18420. [Class 38 (v)] A moving member C attached to a disc rotating slowly in the plane in which lies a stiff flat lever B', B<2> opens and closes contacts with a snap. The sharp edge I of the member C moving from right to left passe@ between a spring A and the arm B' to which it is fixed, straining the spring A until the member C has moved to allow the arm B<1> to move about a pivot H with a snap from the recess L in a stop D. in which it normally rests. Arm B<2> therefore moves up to separate the contact members E, F with a snap and close contact arms E, G until the further movement of member C releases the spring A when the spring arms E is released by the movement of lever B<1>, B<2> to return with a snap to its normal position. A time switch is also described wherein a clock drives a disc carrying three spaced fingers, each of which engages one of three sets of contacts operated with a modified form of this snap action.
Patent GB-812391-A (GB)
Title: Improvements in and relating to electric contact devices
IPC: H01C10/28
Filed: 1956-06-14
Abstract: 812,391. Collectors. GRESHAM TRANSFORMERS Ltd., PALMER, J. O. M., and PALMER, B. S. June 14, 1957 [June 14, 1956], No. 18437/56. Class 38 (1). A contact device for a transformer or the like comprises two contact rollers, preferably of carbon, rigidly connected by a spindle 14 lying in a notch 15 in a carriage 8, rollers 3, 3 spring- pressed towards each other bearing on a guide bar 4 and against the contact rollers, their spindles lying in slots in carriage 8. The rollers 3, 3 are urged towards each other through blocks 7 pressed on to the spindles by springs 6, 6.
Patent GB-761817-A (GB)
Title: Carbamates of acetylenic carbinols and process for their preparation
Inventor: MCCREA PATRICK ANTHONY
IPC: C07C271/06
Filed: 1954-06-23
Abstract: Carbamates of carbinols of the formula HC ­ C.C(R1)(R2)OH, wherein R1 and R2 ar alkyl groups, preferably containing not more than four carbon atoms, are prepared by bringing together an alkali metal cyanate and a solution comprising the carbinol and trichloracetic acid, with or without an additional solvent.  As solvents are mentioned dioxan, methylene di-chloride and carbon tetrachloride, and the reaction is preferably effected either by using an excess of carbinol sufficient to dissolve the tri-chloracetic acid, or using a non-polar solvent (CCl4) in the presence of a small excess of the carbinol.  In examples: (1) powdered potassium cyanate is added to 3-methyl-1-pentynol-3 in dioxan, and trichloracetic acid in dioxan is slowly run into the cooled solution which is stirred overnight, poured into water, and the carbamate of 3-methyl-1-pentynol-3 isolated by ether extraction and fractional distillation of the dried extract in vacuo.  (2) As in (1) but using excess of the carbinol as the solvent.  (3) As in (2), heating the reaction mixture at 45-50 DEG  C., neutralizing the product with sodium carbonate and separating the precipitated salts; the filtrate is concentrated in vacuo, water added and the carbamate which separates is recrystallized from cyclohexane.
Patent GB-1387614-A (GB)
Title: Attachment for microscopes
IPC: G02B21/00
Filed: 1972-04-20
Abstract: 1387614 Stereo microscope attachment POLSKIE ZAKLADY OPTYCZNE 20 April 1972 [21 April 1971] 18483/72 Heading G2J An attachment for a microscope, used in pairs one to each tube of a binocular microscope, enhances the stereo image. To this end an adjustable diaphragm 6 shading only part of the image transmitted to the eye is provided and by suitable adjustment the degree of stereo or pseudo-stereo effect can be varied.
Patent GB-116224-A (GB)
Title: Improvements in Suports for Vehicle Bumpers or Buffers.
IPC: B60R19/24
Filed: 1917-12-13
Abstract: 116,224. Stewart - Warner Speedometer Corporation, (Assignees of Berg, J.). June 11, 1917, [Convention date]. Obstruction-removers.-In an obstruction-remover for vehicles, the bumper or buffer 8, Fig. 1, is supported by means of members 4, preferably castings, which are adapted to rest upon fixed vehicle brackets 3, Fig. 2, such as the lamp brackets, and are formed with a number of curved or hooked projections 4b, 4f engaging under and secured to the vehicle frame. In the construction shown, the members 4 are arranged on the outer sides of the side members 1 of the frame, a transverse tie-rod 7 situated immediately in front of the transverse frame member 2 connects the members 4 and secures the curved projections 4f, and the projections 4<b>, Fig. 3, are bored for the passage of hooked bolts 5, which engage the lower edge of the side members 1.
Patent GB-218118-A (GB)
Title: Hair wavers
IPC: A45D1/18
Filed: 1923-07-18
Abstract: 218,118. Ross, J. Sinclair-. July 18, 1923. Hair - curling appliances.-In hair-waving tongs of the type in which a pronged jaw is hinged to a toothed jaw and a corrugated member is slidably mounted within the toothed jaw, the sliding member is attached to or forms part of a slide rod which is rotatably and slidably arranged on the pin whereby the jaws are pivoted together. The lower jaw a, comprising a smoothed - pronged fork, is pivoted to the upper jaw b by means of a pivot pin e, one end of which is provided with flats e<2> and a head e<3>. The sliding member c is provided with transverse grooves c<6>, and is secured to a slide-rod c<2> provided with a slot c<3> of which the centre portion fits closely but slidingly to the flattened part of the pivot pin while the ends of the slot are enlarged to fit the circular part of the pin. The upper jaw b is of channel form in cross-section, its sides being toothed, and its bed slotted to receive lugs c', Fig. 3, on the sliding member which are retained in the slot by lips. The flats on the pivot pin are so placed that the sliding member c can be moved longitudinally relatively to the jaws by means of the handle h only when the jaws are closed.
Patent GB-878099-A (GB)
Title: Improved method and apparatus for the filtration of undigested sewage sludge
Inventor: KOMLINE THOMAS R
IPC: C02F11/126
Filed: 1958-06-10
Abstract: 878,099. Treating sewage. KOMLINESANDERSON ENGINEERING CORPORATION. June 10, 1958, No. 18547/58. Class 111. Raw sewage passes through a grit chamber 10 and a bar screen or communicator 11 to a settling tank 12, from which the sludge is withdrawn directly, without digestion, by a pump 15 through a closed conduit to which lime is supplied from a feeder 16 in a proportion dependent on the flow of sludge to the pump ; a suitable proportion is 6-12%, based on the weight of dry solids. The pump delivers the sludge to a rotary-drum vacuum filter 18 fitted with a relatively coarse filtering medium e.g. having interstices between 0.01 and 0.028 inch diameter, on which a layer of solids builds up, through which the sludge is filtered. The filtering medium may be of polyvinylidene chloride or polytetrafluoroethylene and may be in the form of a series of filaments which are removed from the drum with the cake, or in the form of a coarsely woven fixed fabric from which the coke is removed by scrapers or strings. The filtrate from the filter is returned to one of the parts 10, 11, 12 and the filter cake may be used directly as a fertilizer or may be dried or incinerated. Optional features of the installation comprise (1) the provision of more than one ball check valve 17, 17<SP>1</SP>, in both the supply line to the pump 15 and the discharge line therefrom, to reduce stoppages caused by the blocking of a valve, (2) the provision of means for supplying additional reagents, e.g. ferric chloride, between the tank 12 and the filter 18 ; such reagents may be added before or after the lime or at an intermediate point between two stages of lining, and (3) the provision of an oxidation unit 13 and a second settling tank 14, for further clarification.
Patent GB-743086-A (GB)
Title: Improvements in or relating to sliding panel-type closures
IPC: E05D15/24
Filed: 1953-07-04
Abstract: 743,086. Door-operating apparatus; hinges. BOLTON GATE CO., Ltd. (Morrison Steel Products, Inc.). July 5, 1954 [July 4, 1953], No. 18610/53. Classes 65 (1) and 65 (2). [Also in Group X] Door-operating apparatus.- In a sliding panel-type closure in which the panels 20-23, Fig. 10, are hinged together about their adjacent longitudinal edges and have runners 44 at their ends engaging guide rails 45, the rails have a bend around which the runners have to pass when the closure is moved from its closed position to an open position out of the way. As shown applied to a garage door the guide rollers 44 are secured on brackets 45a of increasing lengths from the bottom to the top of the door and the guides 45 slope slightly inwardly at the top so that on opening the door it moves back away from the sides of the door opening. The door is counterbalanced at each side by a cable 46 which is secured to eye 52 and passes round ear 51, guide pulley 47, and pulley 48, and is attached at 53 to the top of the door opening. The pulley 48 is carried by a pulley - block attached to coil spring 50. Hinges.-Adjacent panels are connected at their sides by pivots as shown in Fig. 12, in which a pivot pin 38 carried by a member 33 fixed to the upper panel 21 engages a hole in the upper end of the edge member of the lower panel 20, the member 33 being slightly cranked at 37 to clear the edge member; the member 33 is fixed to the panel 21 by bolts 33b, which are relieved of shear stress by the member 33 abutting against a formation 31a pressed up from the edge member of the panel. Additional bearing surface is provided by a member 34 fixed to the lower panel 20 and formed with a concave upper end to receive a rounded lower end 35 of the member 33. The adjacent edges of the panels overlap to provide a weather-tight connection as shown in Fig. 9, and are connected at the middle of their length by a double hinge 41, 42, 40.