baber/WOPTO huggingface dataset:
Patent GB-849136-A (GB)
Title: Improvements in and relating to elastomers
Inventor: SCHOLLENBERGER CHARLES SUNDY
IPC: C08G18/66
Filed: 1958-08-14
Abstract: A polyesterurethane elastomer comprises the reaction product of a mixture of one mol of at least one essentially linear polyester of at least one glycol containing from 4 to 10 carbon atoms and at least one dicarboxylic acid of the formula HOOC-R-COOH where R is an alkylene radical of from 2 to 8 carbon atoms or its anhydride, the polyester having an average molecular weight between 600 and 1200 and an acid number less than 10, from about 0,1 to 2,1 mols of at least one free glycol of from 4 to 10 carbon atoms, and from about 1,1 to 3,1 mols of at least one bis (phenyl isocyanate) compound, the combined average hydroxyl number molecular weight of the polyester and the free glycol being from 450 to 600, and the molar amount of the polyester and the glycol combined being substantially equivalent to the molar amount of the bis (phenyl isocyanate) compound.  The products can be calendered, extruded, injection moulded, milled, or dissolved in solvents such as cyclohexanone, tetrahydrofurane, tetramethyl urea and dimethyl formamide to give cements and coating compositions.  Bis (phenyl isocyanate) compounds mentioned are diphenyl methane diisocyanate, dichloro-diphenyl methane diisocyanate, dimethyl diphenyl methane diisocyanate, diphenyl dimethyl methane diisocyanate, bibenzyl diisocyanate and diphenyl ether diisocyanate.  As compounding ingredients there may be added carbon black, phthalocyanine blue or green, silica, titanium oxide, calcium silicate, clay, whiting or aluminium powder.
Patent GB-224690-A (GB)
Title: Improvements in selective electric impulse transmitting mechanism
IPC: H04M1/272
Filed: 1923-10-19
Abstract: 224,690. Western Electric Co., Ltd., (Deakin, G., Schreiber, L. J. J., and Pappi, J. R.). Oct. 19, 1923. Impuclse transmitters for selecting one of a number of intercommunicating stations as described in Specification 117,170 are provided with means for varying the number of trains of impulses to be sent and the number of impulses in each train. The code to be sent is determined by handles 34, 35, 46 which control the positions of segments 24, 25, 32, loosely mounted on a main shaft 15. To initiate the transmission of impulses a key 26 is given a. quarter turn to wind up a spring 27 and is then released. The main shaft 15 then makes a single revolution under control of a governor 29, the rotation being limited by a detent 52. At the first movement of the shaft, a cam 31 allows the normally separated springs 17, 18, 28 to come into engagement. Thereafter the springs are controlled by an impulse wheel 14 secured to a ratchet-wheel 19, both being loosely mounted on the main shaft. The impulse wheel, by means of a spring 22 on spring 17 causes springs 17, 18 to make and break, and at make, spring 18 is forced away from spring 28. The rotation of the impulse wheel is steadied by a spring 56. The ratchet-wheel is driven by an arm 21 of the main shaft and a pawl 20 pivoted on the arm. At a point dependent on the setting, an arm 23 on the pawl 20 comes up against one of the segments 24, 25. The pawl 20 is thus disengaged and the impulse wheel stops. When the arm 23 passes off the segment the impulse wheel is again driven until the second of the segments 24, 25 is encountered. A third train is sent in a similar way, but the third segment 32 is so arranged that whenever it is set, the arm 23 on leaving it comes against a fourth, fixed segment 48 so that the pawl 20 remains disengaged. At the end of the. revolution, the cam 31 once more causes all the springs to separate. The Provisional Specification describes in some detail the control by the impulse transmitter of the selector described in Specification 117,170.
Patent GB-1426225-A (GB)
Title: Switching system for re-loading a firearm
IPC: F41A19/64
Filed: 1973-06-01
Abstract: 1426225 A switching system for re-loading a firearm INDUSTRIE-WERKE KARLSRUHE AUGSBURG AG 1 June 1973 [2 June 1972] 26167/73 Heading F3C A switching system for re-loading, i.e. rendering the breech mechanism ready for firing including ejecting a spent or faulty cartridge and inserting a fresh cartridge in the firing position, a firearm using electrically detonated cartridges 12 has monostable electronic trigger circuits which are transferred from a pre-defined stable state, in response to a trigger pulse, to a metastable state in which they remain for the duration of a predetermined holding period before they return to the stable state, wherein a delay relay 4 is provided which becomes operative when a pre-determined period of time has elapsed after a firing contact 3 has been closed and an electrical current made available by the contact closure has remained ineffective to detonate a cartridge 12, the operation of the relay 4 triggering, by way of a contact 25 of the latter, a monostable trigger circuit MFI arranged to deliver a pulse of specific duration through a gate G3 to a monostable trigger circuit MF2 and thence to a terminal amplifier EV which amplifies the pulse to the power required for detonating a re-loading cartridge 11, wherein a flip-flop FF1 is provided which is controllable by a manual re-loader switch 13 in such a manner that when the switch is actuated a pulse is delivered which, when a firing relay 5 is not operative, passes through a gate G2 to the gate G3 and hence to the monostable trigger circuit MF2 to trigger the latter and thereby to allow manual re-loading, wherein, when the firing relay 5 is operative, a gate G1 controls the gate G2, the monostable trigger circuit MF2 cannot be triggered by the pulse emitted by the flip-flop FF1 upon actuation of the switch 13 and thus prevents manual reloading, and wherein a gate G4 may be provided which together with filters associated with the terminal amplifier EV suppresses spurious pulses which may occur upon switching on the voltage supply. The delay relay 4 is actuated after a period of 300 m. sees. The monostable trigger circuit MF1 has a holding period of 200 m. sees. The time-dependent method of operation of the delay relay 4 at the time of manual loading by the switch 13 and the corresponding time-dependent method of operation of the monostable trigger circuits MF1 and MF2 are shown in Fig. 2. The firing relay 5 has been actuated and the gate G2 is blocked. Thus "X" signifies the actuation of the delay relay 4 300 m. sees. after the last interruption of the firing current and "XX" signifies the actuation of the delay relay 4 after the loading has been carried out and after the interruption of the firing current. The shade surfaces represent chattering of the contacts.
Patent GB-518893-A (GB)
Title: Process and apparatus for the partial dehydration of hexahydrated magnesium chloride
IPC: C01F5/34
Filed: 1938-09-07
Abstract: 518,893. Dehydrating and calcining magnesium chloride. HAUSDORFF, A. Sept. 7, 1938, No. 26169. Convention date, Sept. 14, 1937. [Classes 1 (i), 1 (ii), and 1 (iii)] The partial dehydration of hexahydrated magnesium chlcride is effected by flowing a melt or strong solution of the salt down a column I, containing cylinders 1 of quartz &c. packed with quartz pigments, in countercurrent to gases at a temperature of about 300‹C. admitted at inlet A. The rate of flow should be such that the material almost reaches the point of solidification as it passes through the heated section. It then falls through a chamber III, to which cooling gas is admitted at B, and is there solidified. The product may be calcined in a separate furnace to yield magnesia and chlorine and/or hydrochloric acid. The Specification as open to inspection under Sect. 91 describes an alternative process in which the dehydration and calcination are effected in the same apparatus, shown in Fig. 6 (Cancelled). The hexahydrate flows down the packed cylinder 23 and heating gases admitted at A flow through the flues 19<1> port 26 and up the interior of the cylinder. The chloride is dehydrated to such an extent that it solidifies in the apparatus. Port 26 is then closed and port 27 opened, and hotter gases are passed through the flues 19<1>. The chloride is converted into oxychloride with evolution of hydrogen chloride which is led off at E to an absorber, unabsorbed gas being recycled through C. In a third stage the temperature is still further increased causing evolution of the remaining chlorine. The residue of magnesia is washed out with a current of water. This subjectmatter does not appear in the Specification as accepted.
Patent GB-935762-A (GB)
Title: Improved shoe-protecting device for drivers of motor and other vehicles
IPC: A43B23/30
Filed: 1960-07-27
Abstract: 935,762. Shoe-protectors for drivers. W. C. DE GIBSON. July 27, 1960 [Aug. 4, 1959], No. 26197/60. Class 17 (2). A device to protect the shoes of motorvehicle drivers consists of a base part 1 attached by some elastic means 6 to the floor of the vehicle or under the driver's seat; said means 6 function is to return the device to its original position after clutching, braking &c. The device may be longer than the shoe and may be provided with sides 2 (which may be pleated as at 9), a toe part 5 with a stiffener 10, and a curved back part to reduce obstruction of the movement of the base.
Patent GB-1194531-A (GB)
Title: Improvements in or relating to Ventilating Means
Inventor: EURICH JAMES VICTOR
IPC: E06B7/10
Filed: 1966-06-13
Abstract: 1,194,531. Ventilators. B. W. BAILEY & SON Ltd. 13 June, 1967 [13 June, 1966(2)], Nos. 14653/66 and 26248/66. Heading F4V. A window ventilator forming or fixed to a sill of a window comprises an extruded C-shaped member 3 of plastics or aluminium having an air inlet 13 and an extruded plastics shutter 16 rotatable to vary the flow of air from a row of apertures 12. A thickened portion 7 and a sloping baffle 6a ensure that water entering the inlet 13 or condensation from the window pane 6 entering apertures 12 does not collect within the member 3. End plugs and intermediate support pieces may be provided in the member 3. A weather shield 15 is provided over the inlet 13.
Patent GB-351327-A (GB)
Title: Improvements relating to the trimming of metal bands, particularly printers' rules and leads
IPC: B41B5/14
Filed: 1930-09-03
Abstract: 351,327. Broaching. WAGNER, J., 16, Hohenzollernkorso, Neutempelhof, Berlin. Sept. 3, 1930, No. 26307. Convention date, Sept. 3, 1929. [Classes 83 (ii) and 83 (iii).] Making printers' apparatus.-In a machine for trimming metal bands, particularly printers' rules and leads for typographic purposes, the band is yieldingly held in a flat position on a guide member 3 provided with laterally projecting tools which trim the edges of the band, the latter being drawn by power through its guide. Lateral guides 2 are arranged adjacent the member 3 to guide the band and a number of disc-shaped trimming tools 8 arranged in series on opposite sides of the band are located in slides 5 movable in transverse guides 4 secured to the machine bed. The slides 5 are adjustable by means of screws 7. A vertical adjustment for the tools may also be provided. The profile of the tools may be chosen in accordance with the desired shape for the edge of the band. The guide 2 is reinforced by members 9 to resist the cutting pressure of the tools and spring-pressed rollers 10 are arranged to hold the metal band down on the guide 3. Scrapers 16 are also provided which in addition to guiding the strip, serve to remove any dirt or chips adhering to the band. The band 20 is unwound from a supply reel, passes to the machine past one or more scrapers 17, and is drawn past the tools and past a second scraper 30 by means of a drum 26, Fig. 4, driven by an electric motor. In some cases grooves may be cut in the side faces of the band. For this purpose the base may carry a slide 22 extending transversely above the guide 2 and provided with a pointed tool mounted in a sleeve 23 and adjustable for depth of cut by means of a screw 24. A similar tool may be provided for grooving the lower face of the band. Measuring devices 18, 19 located at the delivery end of the machine measure the thickness and width of the finished band. The edge of the band may be coloured by a device 28 and the band caused to move along the surface of a rotating drum 29 which moves axially so that a helical line is marked on the drum, this line serving to indicate any imperfections in the band. If the band is too thick for winding on a reel, it may be drawn through the machine by tongs, or by means of a cable which is secured to the band and is wound on a drum.
Patent GB-1481763-A (GB)
Title: Process for the production of fibrous potassium titanate
IPC: C01G23/00
Filed: 1975-06-20
Abstract: 1481763 Fibrous potassium titanate CENTRAL GLASS CO Ltd 20 June 1975 [5 July 1974] 26324/75 Heading C1A Fibrous potassium titanate is prepared by reacting (a) at least one Ti(IV) compound and (b) at least one inorganic potassium in (c) aqueous alkaline solution in the presence of (d) metallic Ti and/or at least one Ti compound in which the Ti has an average oxidation state below 4, at a temperature of at least 250 C. and a pressure of at least 20 atmospheres absolute; part of the water is removed from the reaction system, the water content being 5-80 wt. per cent at the beginning of the reaction. The Ti(IV) compound may be added as such or formed in situ from a lower valency Ti compound. The solution may be rendered alkaline by the K compound or a separate base. The water may be removed physically or chemically (e.g. using a metal).
Patent GB-1398613-A (GB)
Title: Shedding motion apparatus for looms
IPC: D03C3/24
Filed: 1972-06-06
Abstract: 1398613 Loom shedding motions W E N LAURITSEN 6 June 1972 [9 June 1971] 26360/ 72 Heading D1E A shedding motion for loom healds comprises, for each heald 114, a selector pin 108 connected thereto and movable longitudinally therewith, the pin being guided in a channel in the heald, a selection device including a pin 121 positionable to engage or not the selector pin, and a pair of catch members, e.g. formed by shoulders on part 101 of pin 108, an upwardly movable control bar 115 operable to engage or move the upper catch member upwards, a downwardly movable control bar operable to engage and move the lower catch member downwards, the bars being common to a plurality of selector pins and healds, and the bars and catch members being so arranged that, for each held, one or other of the catch members at a time can be engaged with its associated bar according to whether or not the selector pin engages its associated selection pin 121, each control bar being positioned transversely of the said plurality of healds and being arranged for upward and downward movements, the catch members and control bars being arranged for relative lateral movement, and cams being provided to effect said relative lateral movement. A spring 103 urges its associated selector pin 108 upwards. Drive and return bars 105, 117 move up and down coincidently with bars 115, 116, respectively. The operating phases, e, f, a, b, c and d are as follows:-e: the left heald has moved up from bottom sheet position and the right heald has moved down from top sheet position; f the left heald moves towards the top end of its stroke and the right heald becomes engaged via flange 119 with upwardly moving bar 117; a both healds are in an initial selecting position; b part 101 of the left heald is forced to the left due to inclined cam faces on pin 108 and heald 114 and the right heald is held due to engagement of its pin 108 with pin 121; c the left heald rises due to engagement of the upper catch member with rising bar 115 whilst downward movement of bar 116 causes the bar to abut the lower catch member and the catch member to abut the heald; d bars 115, 116 move apart and raise the left heald to upper sheet position and the right heald to lower sheet position, that is a fully open sheet condition. The selection pin 121 may have a further leg 122 and be pivoted on pin 123 and is movable by patterning means to either of two positions in one of which pin 121 engages pin 108 and in the other of which pin 108 is held by leg 122 (see left heald in phase d), thereby keeping that heald in top sheet position. In a modification, each pin 108 is fixed to its heald.
Patent GB-1269041-A (GB)
Title: Implement draw gear
Inventor: DOWDESWELL CHARLES VERNON ROGE
IPC: A01B59/06
Filed: 1968-03-14
Abstract: 1,269,041. Implement draw gear; ploughs. C. V. R. DOWDESWELL. 9 June, 1969 [14 March, 1968; 4 June, 1968], Nos. 12508/68 and 26393/68. Headings A1B and A1P. An implement draw gear comprises a draw bar 1 pivotally connected to the tractor 3 about a vertical axis 2 and having- rollers 5 which engage a quadrant guide 4 mounted on the rear of the tractor. An implement mounting assembly 7 mounted on the bar by a transverse pivot 6 consists of a longitudinal member 9 with pivot pin 12 rigidly attached and a frame 10 mounted thereon, said frame having implement mounting arms 11 pivotally attached. The mounting assembly is raised and lowered about pivot 6 by two hydraulic rams 21 which may be double-acting and which act via connecting links 16 and adjustable drop links 15 on a cross bar 14 pivotally mounted on pin 12 and having apertures through which the implement mounting arms 11 pass freely. The arms 11 are pivoted to the forward cross member 27 of the plough 25 about transverse pivot joints 11b. Plough share depth setting is effected by a ram 35 pivotally connected between a rigid forward upright 42 on the plough frame and an anchorage 37 on the longitudinal member 9 of the implement mounting assembly 7: an increase in length of ram 35 decreasing the depth of the plough shares in the ground. Rams 21 and 35 are so connected hydraulically that on raising the plough, ram 35 firstly extends thereby decreasing the plough share earth penetration then rams 21 raise the plough, while on lowering the plough to the working position ram 35 is again operated firstly thereby assisting entry of the plough shares into the earth. Resilient implement centralising arms (Fig. 6) serve to prevent lateral swinging when the implement is fully raised. In a further embodiment (Figs. 8 and 9 not shown) drop links 15 connect directly to arms 11 which in turn are directly pivoted to the draw bar 1.
Patent GB-881623-A (GB)
Title: Improvements in or relating to sewing machines
IPC: B21B39/16
Filed: 1958-08-18
Abstract: 881,623. Sewing machines. PFAFF A. G., G. M. Aug. 18, 1958 [Aug. 24, 1957], No. 26426/58. Class 112 [Also in Group XXV] A sewing machine presser foot assembly comprises a member adapted to be mounted on a sewing machine presser bar and provided with a cylindrical guide slot, a guide member carried by a shank of a presser foot and adapted to be slidably inserted in the guide slot, rotation of the guide member being prevented by the shank and the depth of insertion of the guide member being limited by an abutment, and latch means adapted to retain the guide member releasably in the guide slot. In Figs 1 and 5 a presser foot 18 has a shank 17 formed at its upper end with a cylindrical portion 19 adapted to slide into a cylindrical bore 4 formed in a member 3 secured to the presser bar 1, the shank 17 passing through a slot in member 3. A cylindrical bore 5 formed transversely to bore 4, and intersecting the latter, journals a cylindrical latch member formed centrally with a latch portion 8. A leaf spring 11 acts on a handle 9 rigid with the latch member to bias the latter anti-clockwise. The front end of portion 19 first engages the flat bottom surface 24 of portion 8 to turn the latch member clockwise until the rounded front end of portion 8 engages the forward face of a transverse notch 23 in portion 19, and by cam action on said face under the bias of spring 11 moves portion 19 until a collar 21 thereon abuts a countersunk portion 22 of bore 4. The latch member may be turned by handle 9 for releasing portion 19. In a modification, Fig. 9, a member 103 secured to the presser bar 1 has a cylindrical bore 104 extending diametrically into upper and lower slots 106. The presser foot shank 117 is formed with a cylindrical portion 119 which is slidable in base 104. A transverse notch 123 in portion 119 is engaged by one arm of a lever 108 which is pivoted at 107 in the upper slot 106 and the other arm of which constitutes a handle 109. The nose 112 of a leaf spring 115 acts on the lever 108 to bias portion 119 inwardly until a shoulder 121 on shank 117 abuts wall 122 of member 103.
Patent GB-933161-A (GB)
Title: Improvements in or relating to cigarette-like tobacco-smoking devices
IPC: A24D1/00
Filed: 1959-08-01
Abstract: 933,161. Tobacco pipes. J. NOEL-DAVIES. July 13, 1960 [Aug. 1, 1959], No. 26467/59. Class 130. To advance a tobacco charge b, a mouthpiece c containing or consisting of a filter wad d is displaced axially in a holder tube a of stout paper or thin cardboard having on one or both sides a metal foil covering e. The mouthpiece c may be simply pushed forward but, as shown, has a projection c<SP>1</SP> engaging a screw-thread a<SP>1</SP> pressed in the tube a, which may be expendible with each tobacco charge or re-fillable with charges rendered rod-like by spraying or rolling with a binder such as gum tragacanth or gum acacia. The binder may be dispersed throughout the charge or be merely a surface application and may act to cause sufficient charge adhesion to the mouthpiece c to allow charge retraction thereby, the action being optionally assisted by fingers on the mouthpiece c. Filled tubes a may be made by a continuous-rod process. Means may be provided to prevent complete separation of the parts a, c.
Patent GB-246598-A (GB)
Title: Improvements in the construction of thin tubular bodies
IPC: B64C1/00
Filed: 1924-11-06
Abstract: 246,598. Short, H. O. Nov. 6, 1924. Fuselages.-Sheet metal tubular bodies for aircraft and flying boat hulls are built up from longitudinally corrugated sleeves 5 - - 13 ovexlapped or butted at their edges, the sections of the corrugations at adjacent edges being of corresponding size and shape. The corrugations may diminish in pitch and section towards the tapered ends of an aeroplane fuselage, or some of the corrugations may die out as they approach a part of lesser diameter. Each sleeve may be built up from more than one plate, the pair of corrugations at the junction of each two longitudinal edges being overlapped and riveted. Where adjacent sleeves overlap they are riveted through to an L-shaped hoop tightly fitting the inside of the joint, but where the sleeves abut, each edge is riveted to a hoop 20 or 21, Fig. 5, and the two hoops are bolted together and a corrugated cover plate 22 is bolted over the junction. Sheet metal of the alloy known under the registered Trade Mark " Duralumin " may be used.