baber/WOPTO huggingface dataset:
Patent GB-329744-A (GB)
Title: Improvements in driving gear for motor driven vehicles
IPC: F15B15/06
Filed: 1929-03-15
Abstract: 329,744. Karlovitz, L. March 15, 1929. Driving-gear of crank type. - Transmission gearing for electric locomotives &c. allowing relative displacement of parallel driving and driven shafts due to spring of the frame &c. comprises a pair of cranks at 180 on each shaft, cross-connected diagonally by transmission systems which are connected to an otherwise free shaft located at the intersection of the diagonals whereby completely constrained motion is obtained. In one form, Fig. 1, cranks 12, 15 are connected by a linkage system 17, 18, 20, 21 whilst diametrically opposite cranks 11, 13 and 14, 16 are connected by similar linkage systems, the tie links 20, 21 &c. being freely mounted on a common floating shaft 0 the position of which coincides with the intersection of the diagonals between the cranks. The shafts M, F rotate in the same direction. In a modification, Fig. 3, the crank pins carry blocks 35, 36 slidable in rocking guides 38, the two systems being pivotally connected by a pin or shaft located at the axis O. In this form complete constraint is obtained by hydraulic interconnecting means between the slide blocks 35, 36, comprising a closed cylinder 41 in which work a pair of eccentric pistons 49, 42 of equal displacements, the central piston 49 being connected by a rod 33 to the slide block 35 and the annular piston 42 by a rod 34 to the block 36. Packing rings being provided and there being no passage for the fluid 50, 51, displacement of either piston in one direction produces equal displacement of the other piston in the opposite direction, the motion of one crank being thus transmitted to the other, accompanied by rocking motion of the slide frame about the vertical axis O. The arrangements may be multiplied as between the same shafts or for connecting up a number of parallel shafts in lazytong fashion.
Patent GB-1010401-A (GB)
Title: A new or improved housing arrangement for the shaft bearing of a gas turbine engine
IPC: F01D25/16
Filed: 1964-02-28
Abstract: 1,010,401. Turbines; gas turbine plant. DAIMLER-BENZ A.G. Feb. 28, 1964 [March 7, 1963], No. 8463/64. Headings FIG and FIT. Means for locating centrally the housing 13 of a turbine-shaft bearing 12 within an outer housing 25 comprises tie rods 24 extending obliquely (i.e. not radially) outwards from the bearing housing, the housing 13 being secured by axially and radially resilient members 14 and 15 to an annulus 16<SP>1</SP> which forms an extension of but is separated from the remainder of the inner wall 16 of the working fluid flow channel 17, the annulus being braced to the outer wall 21 of the channel by streamlined, hollow stays 22 which frictionally engage the outer wall to provide a damping effect for the oscillations produced by the rotor. The outer wall 21 is centred within the housing 25 by means of dogs 28.
Patent GB-269158-A (GB)
Title: Adjustable dip pipe for the hydraulic main of coal gas and coking plant
IPC: C10B27/06
Filed: 1927-03-28
Abstract: 269,158. Compagnie GÚnÚrale de Construction de Fours. April 12, 1926, [Convention date]. Dip pipes comprise a movable annular member 4 H-shaped in section surrounding the gas pipe 2 which does not dip into the water in the main but terminates in an annular trough 3 constituting a seal for the lower inner edge of the dip member. The other lower edge dips into the water in the main and the upper edges provide a trough 7 forming with tubes 9 passing through the cover of the main a seal enabling operating rods 8 to pass freely through the cover inside the tubes. Liquid is fed by one or more inlet pipes to the trough 7 and overflows to the lower trough 3 and thence to the main, the inner upper edge of the dip member being shorter than the outer to prevent liquid flowing directly from trough 7 to the main. Adjustment of the dip member is varied by means of a displaceable inclined stop 17 against which abuts a bearing piece 16 of an operating lever.
Patent GB-1524014-A (GB)
Title: Thermistors
IPC: H01C7/02
Filed: 1977-03-01
Abstract: 1524014 Thermistors STANDARD TELEPHONES & CABLES Ltd 1 March 1977 08539/77 Addition to 1523738 Heading H1K A thermistor element 21, mounted in a thermally conductive material at the end of a fluid-tight envelope, is connected to wires 23, 24 sealed through the envelope wall and having thermal conductivity, cross-sectional area and length selected so that each wire has a lengthwise thermal conductance not greater than 5 x 10<SP>-5</SP> watts/‹ C.
Patent GB-1527100-A (GB)
Title: Ingot gripper assembly
IPC: F23D11/10
Filed: 1977-03-01
Abstract: 1527100 Grippers OPTICAL COATING LABORATORY Inc 1 March 1977 [1 March 1976] 08553/77 Heading B8H An ingot gripper assembly 10 is such that an ingot 13 which is located therein is restrained from downward movement but is allowed to move upwardly relative to the assembly 10. The latter comprises a cylindrical base 26 having a bore 27 through which the ingot 13 passes and outer and inner pairs of pins 37, 38 41, 42 which form a set of pins and which project upwardly from an upper horizontal surface 29 and an inclined upper surface 32 respectively of the base 26, each pair of pins 37, 38 defining a V-shaped recess. A ball 47 is located between the pins of each set and its size is such that when it rests against the pins 41, 42 it projects into the space above a cylindrical surface 28 of the base 26. If an ingot 13 is being advanced upwardly through the gripper assembly 10 and if the means advancing the ingot is withdrawn the ingot 13 will then drop by gravity and will frictionally engage the balls 47 which will in turn frictionally engage the pins 37, 38 thereby clamping the ingot 13 between the balls 47. Due to the V-shaped arrangement of the pins 37, 38 upward movement of the ingot is possible. In the embodiment described above there are four sets of pins where upper ends engage in a retaining ring 46, but in a modified embodiment (Figs. 4, 5, not shown) there are only three sets of pins and no retaining ring is provided.
Patent GB-928802-A (GB)
Title: Improvements in and relating to fluid-pressure servomotor control systems
Inventor: ORLOFF GEORGE
IPC: F16K31/42
Filed: 1959-03-12
Abstract: 928,802. Fluid-pressure servomotor control systems. NORMALAIR Ltd. Jan. 20, 1960 [March 12, 1959], No. 8621/59. Class 135. A valve 5 normally maintained in the position shown by springs 6, 7 controls the flow of fluid from an inlet 9 to a jack 12, the inlet also leading to the chambers at either end of the valve via constrictions 8a, 8<SP>1</SP>a, which chambers are connected to nozzles 16, 17. Fluid discharged from the nozzles impinges upon an obturator 1 centred by springs 20, 21 and having curved recesses 18, 19, the leading surfaces of which are formed as knife edges; the obturator is suspended by a leaf spring 1a and moved laterally by a torque motor 22 to vary the pressures in the valve end chambers and hence move the valve in response to signals fed into the torque motor 22. The configuration of the recesses 18, 19 is such as to provide a fluid pressure feedback on the obturator. The torque motor 22 is disposed in a fluid-filled chamber 2 having an outlet and two diaphragms 23, 24, the former being porous and secured to the obturator so preventing ferrous particles from being attracted to the motor 22. In another form (Fig. 3, not shown) the feedback force is increased by connecting the obturator to opposed pistons, each of which is acted upon by the fluid flowing to one of the nozzles or the fluid in the jack. The obturator springs may be dispensed with or arranged in series or parallel with the feedback pistons. In a further form (Fig. 4, not shown) the feedback is provided by connecting the obturator and valve by a leaf spring. In another form (Fig. 5, not shown) the nozzles and constrictions are formed in the valve which is prevented from rotating by a V-shaped laminated spring. In other modifications, the position of the jack piston may be fed back to the obturator via linkage and springs, which arrangement may be used in addition to any of the other described forms of feedback. One of the two nozzles may be dispensed with and the valve provided with one pressure chamber and spring only. The input signal may be applied by a manual, pneumatic or hydraulic arrangement.
Patent GB-472497-A (GB)
Title: Improvements in or relating to stationery feed mechanism for typewriters or other recording machines
IPC: B41J11/27
Filed: 1936-03-23
Abstract: 472,497. Memorandum appliances. STANDARD REGISTER CO. March 23, 1936, No. 8695. Convention date, March 21, 1935. [Class 16] [Also in Group XVI] In a feed-roller or platen for typewriters and other recording-machine such as addressing- machines and autographic registers of the kind having pins which are automatically moved into and out of engagement with perforations in the stationery, means is provided for causing each pin, while in engagement with a perforation, to move slightly forwards in the direction of rotation of the platen or feed-roller and thereby assist in registering the stationery. Means may also be provided for causing each pin to move slightly rearwards while being disengaged from a perforation, disengagement being thereby facilitated. The platen 10, Fig. 2, is provided at each end with a drum having apertures 20 receiving pins 22 each formed with a notch 34 engaging a stationary cam 30, and a skew-groove 28 engaging a pair of pins 26 on the drum. During rotation of the platen, the pins are projected and rocked slightly forwards, and are then retracted and rocked slightly rearwards. The cams 30 are secured to a sleeve 40 which is angularly adjustable in the manner described in Specification 408,125, [Group XVI]. In the platen 10, Fig. 9, each pin 54 is formed with cranks 58, 60, Fig. 13, engaging stationary cams 62, 74 respectively, the crank 60 co-operating also with a radial slot 72 in a stationary disc 70. A spring-garter 80 on the cranks 60 maintains engagement with the cams. During rotation of the platen, the pins are projected by means of the cam 62, rocked slightly forwards and backwards by means of a hump on the cam 74, and retracted. The cams 62, 74 and disc 70 are secured to an angularly adjustable sleeve 66. In an alternative construction, the pins are provided, on opposite sides, with cranks engaging stationary grooved-cams. Specifications 372,980 and 409,162 also are referred to.
Patent GB-932430-A (GB)
Title: Improvements in or relating to the treatment of surfaces
IPC: C08J7/18
Filed: 1960-03-11
Abstract: An olefinically unsaturated polyfluoro compound which is an ether or an ester is grafted by means of ionizing radiation on to the surface of a polymeric material in order to impart dirt, oil, ink or water repellent effects thereto. The polymeric material may be in the form of a fibric, fibre, paper, plastic film or leather. Polyfluoro compounds specified are 1,1-dihydroperfluoro-ethyl, -butyl, -amyl, -hexyl, -octyl and -dodecyl esters of acrylic and methacrylic acid, and ethers derived from the corresponding perfluoro alcohols, and vinyl and allyl esters of polyfluorocarboxylic acids, including polymers of such compounds containing residual unsaturation.  The process may be carried out by exposing the substrate polymer to ionizing radiation either before contact with or in contact with the grafting compound. The ionizing radiation may be X-rays or gamma-rays.  The examples describe the grafting of polyfluoro polymers, in the form of aqueous emulsions, to various natural and synthetic substrates.
Patent GB-927993-A (GB)
Title: Improvements relating to non-linear electrical circuits
Inventor: CACHIA SAVIOUR LAWRENCE
IPC: H04N5/202
Filed: 1961-03-10
Abstract: 927,993. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 9, 1962 [March 10, 1961], No. 8757/61. Class 37. [Also in Group XL (c)] A non-linear circuit comprises a linearly operated transistor 1 having the input signal applied from terminal 4 thereto and a negative feedback path comprising a non-linearly operated transistor 7 having a direct coupling between its input electrode and the output of the linear transistor and a direct coupling from its output electrode to the common electrode of the first transistor. The circuit has a fractional power law and is suitable for gammacorrection in a television system.
Patent GB-236296-A (GB)
Title: Improvements in driving mechanism for the spindles of spinning, doubling, twisting and like machines used in the production of yarns or threads of fibrous substances
IPC: D01H1/24
Filed: 1924-04-08
Abstract: 236,296. Fairbairn, Lawson, Combe, Barbour, Ltd., and Bee, J. R. April 8, 1924. Clutches, friction.-The spindles of spinning, doubling, twisting, and like machines, whether actuated by a belt, as shown, or by toothed gearing, are provided with a loose friction disc 8, which engages inclined surfaces 10 on a hoop 11 fixed to the spindle and is slid longitudinally of the spindle by means of a lever 12 to engage or disengage with a friction surface 6 on the driving-member 4, the surfaces 10 exerting a wedging action on the disc during driving in whichever direction the spindle rotates. The lever 12 is provided with a friction pad to serve as a brake for the disc 8 when it is raised from the driving-member.
Patent GB-372490-A (GB)
Title: Improvements in arrangement of compensated cardan joint applicable to the driving and steering wheels of vehicles and for other purposes
IPC: F16D3/30
Filed: 1931-03-21
Abstract: 372,490. Universal joints. VILLARD, M., 28, Boulevard Bonne Nouvelle, Paris. March 21, 1931, No. 8800. Convention date, April 1, 1930. [Class 80 (ii).] A single universal joint, particularly for driving steering-wheels of motor vehicles, is provided with means, associated with one of the fork members, for compensating for the variation in velocity ratio by creating a displacement of the cross-member about its point of articulation with one of the forks of the joint, or by rotation of the angle between the arms of the cross-member. In the former case, Fig. 1, the articulating points for the cross on one coupling fork f are formed as slots j parallel or inclined to the shaft axis. A lever i is provided through which the cross may be automatically rotated about the axis a, b, fixed in the other fork e, so that the ends of the cross move in the slots j and cause the desired compensating rotation of the fork f. The second form is shown in Fig. 3, wherein one arm m of the cross is rotatable on the other arm n, and has oppositely cranked ends engaging the fork p. The arm m is automatically rotated through a lever o to cause the compensating rotation of the fork p. A practical embodiment of the first form is shown in Figs. 4-6, comprising a ball member 3 on one shaft 6, a socket member 2 on the other, and an intermediate member formed by a shell 4 with a cover 7. The shell is pinned at 8, 9 to the socket 2 and on an axis at right-angles thereto, carries a pin 5 passing through a diametral slot 12 in the ball 3. In order to give the shell the compensating movement which causes the pin 5 to travel in the slot 12, the ball 3 carries a pin 11 in alignment with the shaft 6 and projecting into a cam-shaped aperture 10 in the shell 4. The pin 5 is constantly urged perpendicular to the shaft 6 by rubber, cork or other elastic material 13 filling the slot 12, or by other means. When applied to driving steering-wheels for motor vehicles the centre or articulation of the joint preferably lies in the median plane of the wheel which is attached to the shaft 6. The Specification as open to inspection under Sect. 91 (3) (a) states also that the cross-member may be displaced about its fixed point of articulation with both forks and refers to French Specification 531,432. This subject-matter does not appear in the Specification as accepted.
Patent GB-198143-A (GB)
Title: Improvements in and relating to dental abrasive or grinding disks
IPC: A61C3/06
Filed: 1922-03-28
Abstract: 198,143. Burlew, G. O. March 28, 1922. Wheels.-A grinding or abrasive disc for dental work comprises an' elastic core 2 of rubber and an outer hard abrading annulus 1. The core of rubber is placed in a mould and surrounded by a mixture of abrading- particles and an integrating-medium of primary plastic or mixable nature capable of hard vulcanization. After vulcanization, the core remains soft, whereby, in use, the disc may yield under pressure.
Patent GB-194159-A (GB)
Title: Improvements in connection with safety guards for bakers' biscuit or dough brakes
IPC: A21C3/02
Filed: 1922-03-28
Abstract: 194,159. Melvin & Sons, Ltd., T., and Gray, H. R. March 28, 1922. Stopping nr reversing machinery by movement of guards. - In guards for bakers' biscuit or dough breaks, of the kind in which a grill or panel extends over one or both sides of the rollers and is connected to the stopping and reversing mechanism, the guard member is linked to a bellcrank lever, which operates a clutch in the stopping and reversing mechanism and preferably is the sole means for so doing. As shown, a rigid grill T can be rocked on pivots U so that one or other end closely approaches one of the feed boards W, and has a side member S connected by a rod R to a bell-crank lever P actuating a double claw-clutch member F, slidably keyed to a belt-driven shaft A. A lay shaft G carries gears H, J, meshing respectively with a gear D, loose on the shaft A, and with a gear K, driving the lower roller M. The. gear K meshes also with a gear E, loose: on the shaft A, so that the motion of the roller is reversed by bringing the member F into engagement with the wheel D or the wheel E. The upper roller N is driven from the lower by gearing V. The grill T may be slightly lifted without disengaging the clutch a further movement stepping the machine, while full movement reverses it and makes the other end of the grill operative. The Provisional Specification describes a reversing - gear embodying single clutches on' the driving and lay shafts.
Patent GB-236867-A (GB)
Title: Improvements in stereotype plate casting boxes
IPC: B41D3/00
Filed: 1924-04-08
Abstract: 236,867. Thornton, A. A., (Plainfield Trust Co.). April 8, 1924. Stereotype, casting. In a stereotype casting-apparatus comprising a fixed back 10, Fig. 2, and a core 14 movable into and out of the back, the core is supported in the back by a pivotallymounted bottom ring attached to its support so as t'o be capable of expanding or contracting with the core. For this purpose, the bottom ring 25 is attached to its support 26 by bolts 27, Fig. 5, screwed through the walls of the support' and having unthreaded ends engaging holes in the ring 25. Two bevelled edges 28, 29 are provided on the upper side of the ring, the edge 28 serving to form a lock-up bevel on the casting C, and the other edge 29 co-operating with a bevelled edge R on the core to form a rib on the casting, at the join of the core and ring, which can be machined off if any leakage occurs. The flexible matrix M is supported by a ridge 31 on the back 10 and its bolster B is crimped between a packing-strip 32 in the back and a coacting ledge 33 on the ring. Means for swinging the support 26 upwardly about its pivot 27<a> when the core 14 is swung out of the back consist's of a rod 95 slidable in a crossbar 96 and pushed upwardly by a spring 94. Specifications 236,637 and 236,868 are referred to.
Patent GB-940983-A (GB)
Title: Overhead loader
Inventor: PUESCHNER PHILIP REUBEN
IPC: E02F3/342
Filed: 1960-03-14
Abstract: 940,983. Load-handling machines. DROTT MANUFACTURING CORPORATION. March 14, 1960, No. 9004/60. Heading B8H. [Also in Divisions E1 and F2] In a load-handling machine means for rotating an arm 14 pivoted on a base 12a, 12b comprises an hydraulic jack 20 having a cylinder 22 pivotally mounted on the base at 27, by an extension formed by members 24, 26 secured to the cylinder 22. The piston-rod 36 of the jack extends from the cylinder in the same direction as the extension and is so connected to the arm at 38 that the pivot 27 of the extension on the base and the pivot 38 of the rod with the arm are equidistant from the pivot 16 of the arm on the base. Cam means 42 on extension member 26 engages with cam track 44 on arm 14 as the arm and jack move through dead centre position to maintain the desired positional relationship between the arm and the jack during this phase of swinging of the arm. Such means are associated with each of the two vertically swingable loader implement-carrying arms of the machine. Dumping of the load of the implement whilst above an operator is prevented by locking the tilting jack 54 associated with the implement by blanking of desired portions of the annular fluid-supply passages in the swivel bearing by which the jack 54 is connected to the associated arm and through which pressure fluid is supplied to the jack.
Patent GB-961618-A (GB)
Title: Improvements in means for joining together two sections of a wooden handle
Inventor: EDSCER ARTHUR
IPC: B25G1/04
Filed: 1962-03-08
Abstract: 961,618. Sectional handles. SUNDT & CO. Ltd. March 1, 1963 [March 8, 1962], No. 9040/62. Heading B4K. [Also in Division F2] The two parts A and B of a sectional handle are detachably joined by a screw having one end 2 screwed into an axial bore in the part A, the other end 3 being adapted to be screwed into an internally threaded sleeve 4 secured in an axial bore in the part B. The sleeve 4 is held against rotation by a pin 6. A ferrule is secured to the end of one handle section and is adapted to embrace the end of the other handle section.
Patent GB-841743-A (GB)
Title: Improvements in or relating to mixing apparatus
Inventor: STANLEY THOMAS ALFRED
IPC: B29C48/67
Filed: 1958-03-21
Abstract: 841,743. Pug mills. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 11, 1959 [March 21, 1958], No. 9100/58. Addition to 787,764. Class 86 The apparatus of the parent Specification is modified to avoid pulsing and consequent ridges in the extruded material by dividing the teeth of one member into a plurality of sections along its length as at 13, 14, successive sections being relatively displaced around the longitudinal axis. Thus when the outer member has two sections 13, 14, Fig. 1, the teeth of one section 14 coincide with the spaces between the teeth of the inner member at the same time as the teeth of the other section 13 overlap the teeth of the inner member, Fig. 3. The teeth are arranged in axial parallel lines which may be straight or helical. The teeth may be angled to assist flow, and may be thicker and smaller, and thus stronger, at the feed end. The inner member may be integral with or separate from the feed screw 10; it may be driven by the feed screw or independently; a torque limiting device may be interposed; other methods of feeding, e.g. gear pumps and pressure melters, may be used. The apparatus is assembled by attaching the outer case 17 over the member 11, successively inserting and locking to the case 17 the parts 14, 13, and attaching the nozzle 18. Heating and cooling methods are described. The apparatus is stated to be particularly suited to the extrusion of the normally solid polymers of ethylene, linear superpolyamides, linear superpolyesters, and polypropylene.