baber/WOPTO huggingface dataset:
Patent GB-444985-A (GB)
Title: Improvements relating to apparatus for testing the balance of rotary objects
Filed: 1935-03-15
Abstract: 444,985. Testing balance of rotary apparatus. WINGFOOT CORPORATION, Wilmington, Delaware, U.S.A. March 15, 1935, No. 8068. Convention date, June 2, 1934. [Class 106 (ii)] Apparatus for testing more particularly annular objects such as tyres or inner tubes comprises a support rotatably mounted on members rotatably driven in opposite directions to reduce frictional drag. A hollow shaft 14 is journalled in ball bearings 16, 18 in the cylindrical upper portion 12 of a fixed base 10, and has passing through it a shaft 20 mounted in ball bearings 22, 24. Mounted on these shafts in equal ball bearings 30, 32 is a hub 28 to which is secured a wheel 50 having a flanged periphery 52 adapted to receive the inner tube 54 to be tested, the stem 56 of which extends within a slot 58 opposite which is a similar slot to balance the wheel. The shafts 14, 20 are adapted to be continuously rotated in opposite directions through sprockets 60, 62 by suitable means. The object is placed on the wheel and the shafts driven, which with the slight vibrating motion allows the object to turn so that the heavy portion is at the bottom. The object can then be marked on the light side so that the valve stem may be placed here to effect balance. When it is required to weigh the amount of out-ofbalance the following means are provided. A ring 70 with an arm 72 one side, and an arm 74 carrying a counterweight on the other side is normally carried by an arcuate bracket 78 secured to the bottom of the member 12. A similar bracket 82 is secured to the top of the member 12 and is slotted to receive a radially extending pin 88 of the ring. In use, the heavy side is located and the wheel rotated so that the heavy side lies in a horizontal plane intersecting the axis. The hub is now clutched to the ring 70 by pushing in the knob 112 which moves the sliding rods 108 and conical member 106 to force the radial pins 94 and clutch members 96 against the influence of springs 102 to engage the ring 70. The clearance between the ring and pin at the top is less than at the bottom so that the ring is lifted off the bracket 78. The arm 72 is connected through links 146 to a shaft carried by ball bearings in the end of a guided piston rod, the piston of which forms a float in a cylinder containing liquid. The float is forced down and displaces liquid in an inclined indicating tube communicating with the cylinder. This tube is furnished with a scale. Limits could be fixed between which a satisfactory article ought to lie.
Patent GB-1501460-A (GB)
Title: Refractory compositions
IPC: C04B35/047
Filed: 1975-02-26
Abstract: 1501460 Magnesia refractories VEITSCHER MAGNESITWERKE-ACTIEN-GES 26 Feb 1975 [26 Feb 1974] 8085/75 Headings CIJ and C1A An unsintered magnesia-based refractory composition comprises (a) a magnesia component or a material which can be calcined to yield a magnesia component having a CaO/SiO 2  weight ratio of at least 1À87 and containing, by weight of the magnesia component, at most 0À7% SiO 2 , at most 6% CaO, at least 3% R 2 O 3  (defined) and at least 2% Fe 2 O 3 , and (b) a ZrO 2 -containing material having a ZrO 2  content of at least 90% and/or a Zr compound calculable to a solid residue containing at least 90 wt. per cent ZrO 2 , the total quantity of the material and/or solid residue being at least sufficient, on sintering of the composition, to bind in the form of calcium zirconate the amount of CaO potentially necessary for the formation of dicalcium ferrite and any other CaO-R 2 O 3  compound corresponding to the R 2 O 3  content as well as any potentially free CaO. R 2 O 3  is defined as the Fe 2 O 3  and any Al 2 O 3 , Cr 2 O 3 , B 2 O 3  and Mn 2 O 3  impunties. The refractory composition may contain up to 50% chrome ore or magnesia-chrome sinter based on the total weight of refractory composition. Refractory bricks or blocks may be made from the sintered or unsintered composition, and in forming the bricks or blocks, use may be made of a chemical binder or a tar or pitch binder. The unsintered refractory materials may be impregnated with a carbon carrier of high carbon content. In the examples, blocks or bricks are made from magnesia components and 3 or 4% zirconia.
Patent GB-1173292-A (GB)
Title: Improvements in or relating to Rotary Piston Machines
Inventor: CRAIG THOMAS MOODIE
IPC: F01C3/02
Filed: 1966-02-24
Abstract: 1,173,292. Rotary piston engines and pumps. T.M. CRAIG. Feb.15, 1967 [Feb. 24, 1966], No.8112/66. Heading F1F. A rotary piston liquid pump, motor, gas compressor, or expander comprises a rotor 1, Fig.1, having the configuration of a segment of a sphere and an arcuate radial-vane 2 attached to its periphery, which vane is lodged in a part-annular space or passage 6 defined by said rotor and a casing having side walls 3, 4 and a peripheral wall 5, a plurality of inlet ports 7 and an outlet port 8 for working fluid being formed in the wall 4 on either side of a hollow rotary-abutment 9 having the configuration of a truncated cone and an aperture 11 therein that permits the vane to pass from one side of the abutment to the other, and gears (not shown) being provided to effect synchronous rotation of a shaft 17 attached to the abutment with a driving-shaft 16 for the rotor. The curvature of the vane 2 is such that in operation an edge of the aperture 11 wipes the leading face of the vane, Fig. 3 (not shown), so as to prevent communication between the port 8 and the trailing side of the vane when the latter is in the region of this port. In a second embodiment, Figs. 4 and 5, the rotor 1 has three vanes 2 of flat tapering configuration attached thereto by dovetails 20, two diametrically opposite rotary-abutments 9 being lodged in the casing, each of which abutments is driven synchronously with the shaft 16 by bevelgears 24, 25 on a rotatable shaft 22 lodged in a journal or post 21 supporting the abutment and on the rotor 1, respectively, said shaft being coupled to the abutment by a spur gear 26 meshing with an internal gear 27 on the radially outermost end of the abutment. The post 21 is attached to the wall 3 of the casing by studs (not shown) and to a cover plate 28 by a stud 29 having a spacing ring 32 thereon. This embodiment is intended to operate as a hydraulic pump or motor, but the working fluid may be a gas. In another embodiment (not shown in the drawings), the rotor is rendered stationary and the casing is rotatable relative thereto, the inlet and outlet ports being situated in the rotor on either side of the, or each, vane. In this case, the vanes and the abutments are equal in number. The abutments may be lodged in the rotor, the vanes being fixed to the casing between inlet and outlet ports therein. Two of the machines according to figures shown may be inter-connected y a fuel combustion chamber, one machine being operated as a compressor while the other operates as an expander such that in combination with each other and said chamber they constitute an internal combustion engine. The two rotors are attached to a common shaft. Either of the machines according to the figures shown may operate as an engine whose working fluid is a vapour e.g. steam.
Patent GB-855874-A (GB)
Title: Process for increasing the elongation of irradiated linear resinous plastic materials
IPC: C08J3/28
Filed: 1957-03-12
Abstract: The elongation of linear polyethylene is increased by incorporating in the polyethylene a minor amount of a rubber accelerator or vulcanizing agent containing sulphur, selenium or tellurium, or of a sulphonyl hydrazide, exposing the polyethylene to high energy ionizing radiation to a dosage of at least 1 X 106 rep. and thereafter heating the irradiated polyethylene to a temperature of between 130 and 200 DEG C. for at least 30 minutes.  The accelerator or vulcanizing agent may be 2-mercaptobenzothiazole or its zinc salt, tetraethyl- or tetrabutyl-thiuram monosulphide a guanidine, thiourea or a substituted thiourea, thiocarbanilide, o-dimethylthiocarbanilide, zinc dimethyl, diethyl, dibutyl or dibenzyl dithiocarbamate, tetramethyl or tetraethyl thiuram disulphide, selenium diethyldithiocarbamate, 2-benzothiazyl-N, N-diethylthiocarbamyl sulphide, sodium or potassium dimethyldithiocarbamate, dibutyl xanthogen disulphide, an alkyl phenol sulphide, bis (dimethylthiocarbamyl) disulphide, dipentamethylene tetrasulphide, 4, 41-dithiodimorpholine or benzothiazyl disulphide.  The sulphonyl hydrazide may be p.p1-oxybis (benzene sulphonyl hydrazide) p.p1-diphenyl bis (sulphonyl hydrazide) or m-benzene-bis (sulphonyl hydrazide).ALSO:The elongation of linear polyethylene is increased by incorporating in the polyethylene a minor amount of a rubber accelerator or vulcanizing agent containing sulphur, selenium or tellurium, or of a sulphonyl hydrazide, exposing the polyethylene to high energy ionizing radiation to a dosage of at least 1 X 106 rep. and thereafter heating the irradiated polyethylene to a temperature of between 130 and 200 DEG C. for at least 30 minutes (see Group IV(a)).
Patent GB-1020056-A (GB)
Title: New ª-mercapto-carboxylic acid derivatives and processes for their production
IPC: C07C/
Filed: 1963-03-01
Abstract: The invention comprises compounds of the general formula <FORM:1020056/C2/1> (wherein R1 represents a hydrogen atom, an alkyl radical containing not more than 5 carbon atoms, a cycloaliphatic radical containing 3 to 5 carbon atoms or a phenyl radical, R2 represents a hydrogen atom or an alkyl radical containing not more than 5 carbon atoms, and R3 represents an alkyl radical containing not more than 5 carbon atoms, a monovalent cation or one equivalent of a polyvalent cation) and their preparation by (a) reacting a reactive ester of a compound of the formula <FORM:1020056/C2/2> (wherein R31 represents an alkyl radical containing not more than 5 carbon atoms) with a reactive salt of 1-adamantanethiol, or (b) reacting a compound of the formula <FORM:1020056/C2/3> with a reactive ester of 1-adamantanol, optionally followed in either case by hydrolysis, salt formation and/or (in appropriate cases) resolution of a racemic product.  The compounds of the invention possess choleretic and fungistatic activity.  The preparation of the lead salt of 1-adamantanethiol is described.
Patent GB-558749-A (GB)
Title: Telephonic apparatus
IPC: H04M1/04
Filed: 1942-06-16
Abstract: 558,749. Telephonic sets. REDIFFUSION, Ltd., and RINGHAM, G. B. June 16, 1942, No. 8234. [Class 40 (iv)] [Also in Groups XXXVII and XL] Relates to switching-apparatus operated by a movable element on a microphone for conditioning for use telephone apparatus, e.g. the transmitter or receiver of a wireless telephone set. In the arrangement described in detail, linked switches for connecting the aerial and battery to the transmitter or receiver are operated by a cable 39, Fig. 5, passing round a drum 42 and operated by a hand-lever 11 on the micro-telephone. At the other end the cable 39, Fig. 2, is connected to a link 36 drawn upwards by a spring 37 and connected by a pin- and-slot lost-motion device 34, 35 to a lever 25 controlling switch 16. The lever 25 is drawn upwards by a spring 31 and connected by an adjustable link 29, 30 to a lever 28 controlling switch 17.
Patent GB-1087423-A (GB)
Title: Improvements in voltage regulators
IPC: H02J7/16
Filed: 1965-02-26
Abstract: 1,087,423. Protective arrangements. ROBERT BOSCH G.m.b.H. Feb. 26, 1965 [Feb. 27, 1964], No. 8284/65. Heading H2K. [Also in Division G3] A protective arrangement for a variable-speed shunt-excited generator having a transistor voltage regulator, comprises a cut-out or fuse 40 connected in series with the generator field winding 16 and the transistor 27, and a controlled rectifier 41 connected in parallel with the winding 16 and in series with the cut-out or fuse. The gate of the rectifier is connected to the tap of a voltage divider 43, 44 to which the generator voltage or a voltage proportional thereto is applied. Under over-voltage conditions, e.g. due to the transistor 27 breaking down, the rectifier 41 is rendered conducting and causes sufficient current to flow to blow the fuse 40 which interrupts the field circuit. The gate of the rectifier may be connected directly to the tap of the voltage divider, Fig. 3 (not shown), or by a Zener diode 45 as shown. In a further arrangement, Fig. 4 (not shown), a transistor is provided between the gate and the Zener diode with a capacitor connected between the collector and base of this transistor to provide a slight delay sufficient to avoid incorrect operation due to short duration voltage surges.
Patent GB-293089-A (GB)
Title: Improvements in the manufacture of accumulator grids
IPC: H01M4/20
Filed: 1927-03-25
Abstract: 293,089. Haddon, W., Haddon, W., and Robertson, W. J. March 25, 1927. Galvanic-battery plates. -A machine for cleacing and trimming the margins of both faces and two edges of a storage battery plate simultaneously comprises a guide-way 4 - - 7 along which the plates 8 are pushed by carriers 9 projecting from an endless chain 10. Two series of scrapers 23, 24 are arranged to engage the edges of the plates, a similar set of scrapers 25, 26 engaging margins of the faces, as shown in Fig. 2. The plates pass under a, rotary brush 27 as they leave the scrapers. The plates may then be removed and passed through the machine a second time to scrape the remaining two edges or they may be automatically transferred to a second endless chain 60 at right angles to the first and finished off by a second series of scrapers 24a similar to the first. Fig. 3 shows the device for transferring the plates from the chain 10 to the chain 60. A pair of rods 34, 35 rock backwards and forwards and engage the edges of the plates 8 to push them from one chain to the other, the rods being lowered during their backward movement to pass under the plate in position and thert raised to engage its rear edge. The rocking mechanism consists of two levers 38, 39 having bearings 36, 37 at their upper ends through which the rods 34, 35 pass. The lower ends of the' levers 38, 39 carry a member 42 engaged by a cam 44 to rock the levers about a shaft 40. The rods 34, 35 are lowered during the backward rocking movement by springs 49, 50 engaging collars 51, 52 on the rods, the lower ends of which rest on cams 55, 56 to raise the rods behind the plates 8 after the backward rocking movement is complete. Fig. 4 shows one of the scrapers which consists of a blade 70 pressed by a spring 71 and supported adjustably on the frame 74 of the machine. Specifications 221,539 and 246,882, [both in Class 53, Galvanic batteries], are referred to.
Patent GB-103935-A (GB)
Title: A Holder for Coats, Hats, Umbrellas and the like for use in connection with Theatre and other Seats.
Inventor: FITZPATRICK HUGH DONALD
IPC: A47C7/64
Filed: 1916-06-13
Abstract: 103,935. Fitzpatrick, H. D., (Fielding, C.). June 13, 1916. Hat-holders &c. - A holder for coats, hats, umbrellas, &c. for attachment to the back of a theatre or other seat, against which it can be folded when out of use, comprises a support a hinged at its lower end and having side stays e sliding in or on guides or rails f. Clips g retain the holder in its folded position.
Patent GB-1064159-A (GB)
Title: Percussion tool for driving self-drilling anchors and like fasteners
IPC: B23B51/12
Filed: 1966-02-25
Abstract: 1,064,159. Percussive tools. DIBOTEC A.G. Feb. 25, 1966 [March 3, 1965], No; 8342/66. Heading B4C. A percussive tool for driving fasteners such as self-drilling anchors 8, comprises a percussion member 2 adapted to strike a rotary shaft 3, and a connector including two concentric members 6, 7 which can be coupled by a sleeve 12 so that they rotate together and decoupled to permit relative rotation therebetween. The member 6, which is hexagonal, is formed with a bore 5 in which a reduced end of the member 7 is slidable, the latter member being retained in the bore by means of a pin-and-slot connection 9, 10. The outer portion 7<SP>1</SP> of member 7 is also hexagonal so that when both hexagonal portions are aligned and coupled by the sleeve 12, a holder 17 for the self-drilling anchor is rotated. Upon raising the sleeve, a groove 15 therein engages with a spring-loaded ball 13 to retain the sleeve and so disconnect the rotary drive.
Patent GB-127938-A (GB)
Title: Improvements in or relating to Adjustable Spanners, Nut and Tap Wrenches, and the like.
Inventor: GRANGE JOHN WILLIAM
IPC: B25B13/12
Filed: 1918-11-18
Abstract: 127,938. Grange, J. W. Nov. 18, 1918. Sliding-jaw wrenches.-In a spanner or tap wrench of the kind constructed with relatively movable shanks each provided with a series of holes differently spaced in the two shanks for the reception of a locking-pin in various adjusted positions, the pin is constructed with an enlarged and split head. In the spanner shown in Figs. 1 and 4, the shank a of the outer jaw b slides in a sheath c carrying the inner jaw d, and series of holes e, f of different pitch are formed in the shank a and sheath c. After adjustment of the jaws to suit the nut &c. being operated upon, the jaws are locked by a pin g formed with an enlarged and split head, which is passed through a pair of the holes e, f. In the tap wrench, Fig. 5, the series of holes are formed in the handled member i and in a sliding plate h, the member i and plate h being provided with squared or other angular orifices j, l to engage the tap.
Patent GB-1438661-A (GB)
Title: Driven plates for friction clutches
IPC: F16D13/64
Filed: 1973-02-21
Abstract: 1438661 Mounting clutch plates on hubs AUTOMOTIVE PRODUCTS Ltd 6 Feb 1974 [21 Feb 1973] 8516/73 Heading F2U A clutch driven plate comprises a friction facing carrier 14 mounted for limited rotational movement on a hub 10 against the action of springs 31 held in openings of annular members 17, 18, at least one of which is fixed to the hub by serrations 19. The annular members 17, 18 may be spaced apart by a spacer-sleeve 12 and the carrier 14 may be positioned axially by a Belleville washer 37, damping rings 32, 33 of friction material and a non-rotatable pressure plate 34 anchored by a tongue 35. Stops for limiting the rotational movement of the carrier may be formed by tongues 25 which pass through circumferential slots 26 and are anchored in the opposite annular member 18 by notching at 29, Fig. 3. The serrations 19 may be on the annular members formed of harder metal than the hub 10, which may be of sintered iron, so that they cut grooves in the hub when forced together; the annular members are then retained by upsetting the hub at 23. Alternatively, the serrations may be formed inthe hub of hard metal instead of in the annular members. In another embodiment, Fig. 4 (not shown), the spacer-sleeve 12 is omitted and the tongues 25 are replaced by tongues (49) on each of the annular members (44, 45) these extending towards each other and meeting within the circumferential slots (50) in the friction facing carrier (51).
Patent GB-1430193-A (GB)
Title: Illumination optical system of projection printing apparatus
IPC: H01L21/30
Filed: 1973-02-22
Abstract: 1430193 Illumination system for printing photomasks CANON K K 22 Feb 1973 [23 Feb 1972] 8615/73 Heading G2A In projection printing of photomasks with an illumination system comprising projection and condenser lenses (giving an illumination similar to Kohler's), an eccentric lens having two or more parallel optical axes is selectively interposable between the light source and the photomask to change the illumination to "critical" for aligning the photomask pattern on the object. Thus for printing there is high contrast with uniform illumination and numerically low aperture, while for alignment the image of the photomask is brighter but non-uniformly illuminated with a numerically higher aperture. Preferably, the insertion of the eccentric lens is coupled with the insertion, at a point where the luminous flux is narrow, of a filter which cuts out actinic light but passes light favourable for observing alignment. Diagrams are given Figs. 7-9 (not shown) of the light paths for printing and observation, using respectively (1) a single condenser lens and convergent eccentric lens, (2) two condenser lenses and convergent eccentric lens, and (3) two condenser lenses with a field lens and a divergent eccentric lens.
Patent GB-957761-A (GB)
Title: Improvements in pressure or force measuring apparatus
Inventor: SCOTT ATHELSTANE BODLEY
IPC: G01L7/02
Filed: 1962-03-06
Abstract: 957,761. Measuring force; pressure gauges; weighing apparatus. BRYANS Ltd. March 1, 1963 [March 6, 1962; Sept. 20, 1962], Nos. 8650/62 and 35851/62. Headings G1L and G1W. A force or fluid pressure measuring device comprises a tube 10 (Fig. 1) of rigid elastic material the wall of which is relatively thin compared with the tube diameter and has helically disposed ribs 12 or corrugations (Figs. 3, 4 not shown). The ends of the tube have integral flanges 14, 16 with closure caps 18, 20. The upper cap is anchored by means not shown and has an inlet 22 for fluid under pressure. The lower cap 20 is free to twist. When subjected to internal pressure (positive or negative relative to the ambient external pressure) or to axial loading such a tube is distorted torsionally relative to its longitudinal axis. The angular extent of the distortion is linearly proportional to the axial loading or to the internal/external pressure difference within the elastic limits of the tube material. The angular movement of the cap 20 may be detected by known means preferably electrically. In an alternative embodiment (Fig. 2) appropriate for measuring axial loads the lower cap 20 is anchored and the upper cap 18 constitutes a platform to which a load e.g. a weight can be applied. The cap 18 may be free to rotate or restrained. The twisting of the tube is detected and measured midway along the tube. The cross-section of the tube may be circular, oval, polygonal, square or triangular. With tubes other than circular the ribbing or corrugations will have a constant angle of obliquity to the tube axis.
Patent GB-181830-A (GB)
Title: New or improved liquid level indicating apparatus
IPC: D06B23/22
Filed: 1921-03-21
Abstract: 181,830. Cartwright, A. March 21, 1921. Indicators, alarm and signal.-The float roller o in the sow-box of a slashing machine is connected by an arrangement of levers to a rod e which carries an electric contact d at its lower end and slides in a cylinder a secured to the size feed pipe c. The piston g, supported by a spring h, carries an electric contact f, the normal distance between the contacts, which are in circuit with an alarm, being regulated by a screwcap i. When the level of the size in the sow-box falls, the rod e descends completing the circuit and operating the alarm. The spring h allows for further downward movement of the rod. The handle q of the supply-regulating valve r may be attached to the float lever n<2>. A separate float may be used in place of the roller.
Patent GB-179038-A (GB)
Title: Improvements in turning tools for use in lathes
IPC: B23B29/04
Filed: 1921-03-21
Abstract: 179,038. Herbert, Sir A., and Lloyd, A. H. March 21, 1921. Turning; lathe centres.-For effecting the preliminary machining of the end of bar stock, or a similar operation, a tool C<5> is carried in a holder C<4> traversed by a hand-operated snail-cam D against a spring C<6>. The holder C<4> slides on a support A<2> which is mounted in the turret by means of the shank A<3>, and has a sharp-ended centre B, for steadying the work, bearing against a ball race A<5>.