baber/WOPTO huggingface dataset:
Patent GB-1337101-A (GB)
IPC: H04L25/22
Filed: 1972-05-11
Abstract: 1337101 Two to four wire converter; automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 11 May 1972 [19 May 1971] 22130/72 Headings H4R and H4K A 2/4 wire converter is provided by a transformer having a primary winding connected to a two wire line and a centre-tapped secondary winding connected to a differential amplifier whose output feeds a transistor current amplifier that provides an output in the two-to-four wire direction. The figure illustrates the interconnection of two two-wire subscriber lines La, Lb over a four-wire electronic switching network (whose crosspoint impedances are represented by impedances Rds) via a centrally located junctor Jxa, Jxb (having symmetrical sections for the two halves of the network that it feeds) and two peripheral 2/4 wire converters LCa, LCb. The lines are D.C. fed by respective constant current sources consisting of a common base transistor Q1 whose base bias is derived from a Zener diode D1 and whose output is applied to one side of a capacitor C1 that divides the primary winding of the line transformer T. A mathematical model for relating line-to-line crosstalk, line length and the magnitude of the feed current is given. The transformer's secondary winding has an equal number of turns to the primary and its centre tap is taken to a reference potential of + 4 volts, this being an effective earth connection so far as signal currents are concerned. The ends a, b of the secondary are connected to the collectors of transistors Q3, Q4 forming a differential amplifier. A constant current source G5 causes a potential of-1À5V to be developed at the emitter of Q4 and zero V to be developed at the emitter of Q3. The resistors R3, R4, R5 have an impedance equal to half that of the line while R6 is equal to a quarter of the line impedance. The net effect of the circuit is to match the line to the switching network and to balance the differential amplifier for D.C. conditions. The output of Q3 is applied to the switching network via a current amplifier Q6, this preventing a very low input impedance and a very high output impedance. Under these conditions there should be no crosstalk from the M to the N directions since the circuit for the latter direction is effectively provided by R5 and this is earthed at both ends. Crosstalk in the reverse direction is also minimal since the base of transistor Q3 is effectively at earth potential and the two halves of the secondary winding are equally loaded. The latter condition is effective also in ensuring that the terminals a, b are driven by N direction signals of opposite phase so that full signal transfer is obtained into the line. In the a side of the junctor, the incoming signal current is applied via common collector transistor Q7 and a coupling capacitor Ca to a Zener-diodestabilized, common-base transistor similar to Q8 in the b side prior to onward transmission over the second half of the switching network to the b subscriber's 2/4 wire converter.
Patent GB-143116-A (GB)
Title: An improved wreath case
IPC: A01G5/04
Filed: 1919-09-09
Abstract: 143,116. Wadham, F. Sept. 9, 1919. Wreath cases.-Relates to wreath cases of the kind having curved glass side pieces and a curved glass lid fitting in a metal frame, and a metal bottom. According to the invention, the metal bottom is made conical to render it more rigid, and is attached to the framework by wire clips. The case shown comprises four glass side pieces 1 and a lid 3 fitting in a metal frame 2, and a conical metal bottom 4 attached to the body by wire wire clips 5.
Patent GB-1389495-A (GB)
Title: High frequency surgical device
IPC: A61B18/12
Filed: 1972-05-11
Abstract: 1389495 Mounting high frequency surgical apparatus SIEMENS AG 11 May 1972 [11 May 1971 25 June 1971] 22229/72 Heading A5R High frequency apparatus for installation in a wall of an operating theatre comprises a housing 2 having two surfaces which are angled to each other and form when the apparatus is installed a front surface and a side surface 4, and a box 11 housing connections 12 for high frequency surgical apparatus, the box being mounted on a pivoted carrier arm 7 so that it can be pivoted into and out of a storage position in which it is directly adjacent the surface 4 and has its front surface in the same plane as the front surface of the housing and with the carrier arm located behind the box. The surface 4 defines with the housing 2 a recess 5 into which the box 11 is pivoted. The arm 7 comprises pivoted links 6, 10 and the electrical connections for the surgical apparatus pass through bores in the links and the pivotal bearings thereof. A venting aperture is provided in surface 4 and a vertical pivot 14 of arm 7 has a leaf spring 16 which contacts a switch 18 when the box is located in recess 5 to interrupt the circuit of a generator of the high frequency apparatus. Means Are provided for lifting the spring 16 off of switch 18 when the arm 7 is pivoted out of the recess, thereby completing the circuit.
Patent GB-653988-A (GB)
Title: Improvements in and relating to warp beams
IPC: D02H13/28
Filed: 1948-08-24
Abstract: 653,988. Loom warp beams. RADFORD, F. W. Aug. 24, 1948, No. 22263. [Class 142(ii)] At least one end of a warp beam 1 is provided with an exteriorly screw-threaded member 3 of reduced diameter upon which is mounted a spoked wheel-like flange 9 so that relative rotation between the flange and the member 3 provides adjustment of the flange in an axial direction. The member 3 is fixed to the beam by screws 5 and a cylindrical cover 7 having the same diameter as the beam and axial slits 8 for the flange spokes 10 is rotatably mounted on a boss 4 of the member 3. An end closure 11, rotatably mounted on the portion 3 normally prevents axial movement of the cover 7. The parts are locked in position by a nut 13. When the flange is adjusted, the nut 13 is slackened and the flange and cover rotated relative to the beam and screwed member 3, the flange spokes sliding along the slits 8. The parts may be duplicated at the other end of the beam. A spindle 2 extends through the beam and each screwed member 3, squared portions of said spindle engaging in squared portions 6 of the screwed members. Specification 613,148 is referred to.
Patent GB-615135-A (GB)
Title: Improvements in gas heated water boilers
IPC: F24H1/00
Filed: 1946-07-27
Abstract: 615,135. Hot-water boilers. LOMAX, W. July 27, 1946, No. 22397. [Class 64(i)] In a hot - water boiler supplying boiling water and hot water at a temperature below boiling point for domestic, cafe or like purposes, the steam space b of the boiling compartment B is surrounded by an annular chamber C the inner wall c of which forms a wall of the steam space and is of truncated conical shape. Inflowing water passes through the annular chamber C before entering the boiling compartment B so that steam rising from the water in the boiling compartment condenses on the wall c and falls back into the boiling water. Water enters the chamber C through pipe c<1> and passes into the chamber B through apertures c<2>. Heated water is withdrawn through pipe b<2>. The boiling compartment may be surrounded by fins b<1>.
Patent GB-170924-A (GB)
Title: Improvements in or relating to buffing and like leather working machines
IPC: C14B1/46
Filed: 1920-07-28
Abstract: 170,924. Turner Tanning Machinery Co., Ltd., and Hoefling, F. C. July 28, 1920. Rotating-tool machines. - A combined rotary and axial reciprocatory motion is imparted to the cylindrical working tool or roller of a buffing or like leather-working machine. As shown in Fig. 1, the tool spindle driven by belts 17<a> from the shaft 18, is simultaneously reciprocated in its bearings 2 by a bell crank lever 11 one arm of which carries hardened segments 6 engaging a circumferentially grooved collar 3 in the spindle, the other arm being connected through a link 13 to a crank 15 on a spindle 16 mounted in a bracket 17 and driven by a belt 19 from the shaft 18. When the reciprocatory motion is not required the belt 19 can be dismounted or a clutch or belt-shifting gear can be provided for this purpose. Reference has been directed by the Comptroller to Specifications 921/81, 5748/95, 18026/02, and 13543/03.
Patent GB-1513576-A (GB)
Title: Ignition control lead connector assemblies for internal combustion engine ignition distributors
IPC: F02P7/06
Filed: 1975-05-23
Abstract: 1513576 Electrical connector ROBERT BOSCH GmbH 23 May 1975 [25 Oct 1974] 22533/75 Heading H2E An ignition control lead connector assembly for connecting an ignition lead 13 to a distributor 1, has a plug housing 12 and a socket housing 2 so shaped that they can only be joined in a predetermined orientation so that the connectors 14 engage the contact strips 10. The socket 4 is secured by screw 4 and a bracket 25 screwed by a screw (24, Figure 2, not shown) to the distributor 1, prevents ready detachment of the plug 12. A groove (28, Figure 4, not shown) in the roof of the socket 2 receives a ridge (31, Fig. 9, not shown) of the plug 12 to ensure the predetermined orientation. In another embodiment the socket 2 is secured by a spring (35, Figs. 10 and 11, not shown) and seals (29) are provided in the socket.
Patent GB-445181-A (GB)
Title: Improvements in or relating to screening devices
IPC: B07B1/28
Filed: 1934-08-03
Abstract: 445,181. Sifting-apparatus. SYMONS, L. G., 1462, North Stanley Avenue, Hollywood, California, U.S.A. Aug. 3, 1934, No. 22680. [Class 117] Sifting-apparatus comprises (1) a screen deck mounted on springs and driven by a rotating shaft through a plurality of leaf-spring connecting members disposed some on one side and some on the other side of the axis of the shaft and (2) a screen deck and a base for the rotary shaft mounted separately on springs and a connecting rod comprising a number of leaf-spring members. In the embodiment described, the screen deck C is mounted on a set of inclined leaf-springs B<1>, a frame B4 is mounted on another set of leaf-springs B, and the driving shaft D<7> is mounted in bearings on the frame B<4> and transmits the drive to the screen deck by means of pairs of leaf-springs D disposed above and below the axis of the shaft. The springs D are bolted to the ends of a housing surrounding eccentrics on the shaft which is driven from a motor E on the base structure by a belt E<8> preferably parallel to the springs B, B<1>. The load is partly supported by an adjustable helical spring H. The feed hopper B<6>, with an adjustable gate B<7> is carried by the frame B<4>. One or more screens C<5> may be mounted on the screen deck.
Patent GB-615166-A (GB)
Title: Improvements in or relating to cartons for sweets, biscuits or the like
IPC: B65D5/32
Filed: 1946-07-30
Abstract: 615,166. Cartons. CARTNER, J., and STREATER. G. H. July 30, 1946, No. 22722. [Class 18] A collapsable carton of fancy shape is formed of two blanks, one comprising a lid 11, rear wall 10 and bottom 12 and the other comprising front and side walls 29.. 32. Edges 13, 15, 14, 16 of the lid and bottom are parallel, the edge 16 being shorter than the edge 15, and the walls 29 .. 31 are trapezoidal. The depth d of the lid is less than the depth D of the bottom so that, in the set up condition, the walls 29, 31 and the front wall 30 slope in opposite directions. The blank forming the walls 28..32 is secured to the rear wall 10 by end flaps 39, 40 attached by adhesive or staples, and the bottom 12 is locked to the walls by the engagement of tabs 19, 20, 23, 24 on flaps 18, 2.1, 22 attached to the bottom with flaps 43, 44 on the walls 29, 32. The lid 11 is secured by the engagement of its flaps 17, 25, 26 with flaps 41, 42 on the walls 29, 31, the flaps 25, 26 having surfaces' 27 which stiffen the carton by pressing the side walls 28, 32 outwardly. A finger opening 45 may be formed in the front wall 30. The carton may be formed with the walls 29.. 31 sloping in the reverse direction to that shown.
Patent GB-242243-A (GB)
Title: Improvements in or relating to inking and moistening apparatus for duplicating and like machines
IPC: B41F33/10
Filed: 1925-09-11
Abstract: 242,243. Deutsche Maschinenbau-und Vertriebs Ges. Oct. 29, 1924, [Convention date]. Damping-apparatus for lithographic and like machines; inking-apparatus.-In duplicating and like machines employing damping and inking mechanisms, means consisting of engaging and disengaging parts on the two mechanisms are provided for ensuring that the inking-mecbanism its not in operative position unless the damping- mechanism is also in operative position. The inking-mechanism b, carried by a pivoted frame c, is moved towards and away from the forme cylinder a by means of a lever i having a cam slot l engaging a pin m on the frame c. A pivoted spring-pressed catch o, Fig. 1, normally prevents movement of the lever i to operative position by the engagement of a shoulder p thereon with a projection q on the lever, but this catch is released, when the damping-mechanism e, f is applied to the cylinder a, by a member r, pivoted to the frame g carrying the damping-mechanism and adapted to hook over a stud s. A second catch t, Fig. 2, engages the member r and prevents the removal of the damping-mechanism until the inking-mechanism has been moved to inoperative position, when a projection q<1> on the lever i engages a finger v on the catch t and moves the catch so that the member r can be released from the hook s.
Patent GB-782745-A (GB)
Title: Improvements in or relating to pharmaceutical compositions
IPC: A61K31/195
Filed: 1954-08-05
Abstract: A pharmaceutical composition comprises a solid base material, e.g. an ointment, or an emollient base and from 0.001 to 1 mg. of a halogen derivative of tyrosine, e.g. diiodotyrosine, diiodothyronine, triiodothyronine, tetraiodothyronine (thyroxine) and their lacto, dextro, and racemic forms, per gram of composition.  Other steroid compounds, e.g. estrogen, androgen, may be included in the composition.  The base may contain polyethylene glycol, triethanolamine, kaolin, zinc oxide, benzoic acid, wax, talc, starch, calcium carbonate, lanolin which may be mixed with a material of solvent or oleaginous nature, e.g. petroleum jelly, coconut oil, to form ointment or emollient bases.
Patent GB-301443-A (GB)
Title: Improvements in or relating to fluid pumps or compressors
IPC: F04B53/14
Filed: 1927-08-31
Abstract: 301,443. Baxter, C. Aug. 31, 1927. Connecting-rods. - The outer end of the connecting-rod of a pump or compressor is connected by pivoted links i, j to the crosshead or piston out of the longitudinal axis.
Patent GB-698423-A (GB)
Title: Apparatus for indicating or controlling the level of solid material in a vessel
IPC: G01F23/00
Filed: 1950-09-18
Abstract: 698,423. Hopper indicating means. STEWART, R. B., and STEWART, A. M. M. Sept. 11, 1951. [Sept. 18, 1950] No. 22908/51. Class 78 (i).  Detector member 4 reciprocates inside a hopper to contact the material surface and to control or indicate the level thereof. Member 4 is reciprocated by rocking mechanism which is applied to crank arm 11 and which operates through the linkage-arm 9, rod 8 carrying adjustable abutment 7 and arm 2 secured to shaft 1, said shaft being returned by spring 5. Crank arm 11 is secured to shaft 10 so that pawl 18 carried by arm 17 rocks with shaft 10. Quadrant 15 which prevents pawl 18 engaging with ratchet 12, is connected by arms 16, 3 to rock with shaft 1. Now, ratchet 12 is free on shaft 10 and is rigid with sprocket 13 driving the discharge mechanism of the hopper through chain 14. Thus when the hopper level is low, number 4 performs full reciprocation so that quadrant 15 and pawl 18 reciprocate together and the ratchet does not move. But when the hopper level is high, member 4 performs only a partial reciprocation and this causes the reciprocation of panel 18 to exceed that of quadrant 15 so that pawl 18 drives ratchet 12 and through sprocket 13 and chain 14, will operate the discharge mechanism. Specification 669,546, [GroupXIII], is referred to.
Patent GB-672991-A (GB)
Title: Improvements in and relating to machines for washing clothes and the like
IPC: D06F17/06
Filed: 1949-09-05
Abstract: 672,991. Washing-machines. CHARLTON, T. W. Sept. 6, 1950 [Sept. 5, 1949], No. 22961/49. Class 138 (ii). A washing machine has a continuously rotated agitator disc g immediately above and substantially parallel to the bottom of its tank f, and provided with separate upstanding bulges or prominences h on its upper face, disposed on opposite sides of a diameter. The tank f is preferably square or polygonal in section, and the bulges are shaped and positioned to coact with the corners of the tank in producing a combined swirling and centripetal action of the liquid and clothes. The agitator disc consists of a concave casting and the bulges are of substantially triangular section, the rear faces (in the direction of rotation) being of greater inclination. The bulges may be inclined to lines radial to the centre of the disc, and more than two bulges may be provided. The tank f may be pentagonal or hexagonal in shape. The disc g is driven through worm or other reduction gearing by a motor housed below the tank.
Patent GB-501061-A (GB)
Title: Improvements in and relating to float actuated valves
IPC: B67D7/16
Filed: 1937-08-21
Abstract: 501,061. Float -actuated valves; delivering measured quantities of liquids. ROBINSON, A. L., and-WATTS FINCHAM (1932), Ltd. Aug. 21, 1937, No. 22995. [Class 135] [Also in Group XVIII] A measuring - vessel wherein the air displaced during filling is controlled by a float operated valve adapted to close automatically when the vessel is full, has a second valve arranged in series with this valve adapted to restrict the escape of air when the liquid in the vessel reaches a predetermined height so as to avoid premature closing of the float valve due for instance to the formation of foam. The float 5 is housed in a chamber formed by a cylindrical member 3 clamped between upper and lower plates 1, 2 by bolts 4 and is connected by a rod 6 with a spherical valve head 7 adapted to seat on the member 2 which is detachably secured to .the upper end of a measuring chamber. A deflector 9 serves as a guide for the valve spindle. The tubular valve chamber 11 for the second valve is secured to the plate 2 and depends into the measuring vessel. This valve 12 normally rests on a perforated grid 14 but is raised by the liquid flow into contact with a seat 15. When the valve is seated, outflow of air which previously passed through ports in the grid 14 and ports 16, 17 in the tube 11 is restricted to the port 16. To prevent incoming liquid impinging 'on the second valve a deflector is fitted to the measuring vessel inlet. This may comprise a disc having legs secured to the vessel wall or legs for supporting it in the union connecting the vessel to the control cock.
Patent GB-1152368-A (GB)
Title: Reprographic Process
IPC: G03F7/28
Filed: 1966-05-24
Abstract: 1,152,368. Photographic process. KONISHIROKU PHOTO INDUSTRY CO. Ltd. May 24, 1966 [May 25, 1965], No.23090/66. Heading G2C. Photographic images are formed by imagewise exposing a photo-dimerizable monomer, having a melting point of 50-150‹C., developing the thus formed latent image and fixing. The latent images may be developed optionally after transfer by a toner, a viscous ink or a compound (e.g. a diamine) which reacts with the monomer to form a coloured compound. The process may be used to prepare negative or positive images:- (a) a negative image is prepared by exposing the monomer so that it is partially dimerized in the exposed areas to form a latent image of a mixture of monomer and dimer having a melting point below that of the unexposed monomer, and developing the latent image at a temperature above the melting point of the mixture but below that of the monomer; (b) positive images may be prepared by (i) heating the latent image of process (a), or (ii) converting all the monomer in the exposed areas to dimer using a long exposure, the monomer being preferably heated before or during exposure to accelerate dimerization. The developed images may be fixed by heat or solvent vapour, and may be used as printing masters, e.g. by using a spirit soluble toner or by forming an offset plate by removing the photo-sensitive material in the unexposed areas. Suitable dimerizable monomers are benzilidene- and cinnamylidene-acetophenones, cinnamic acid and its esters, 3-methyl-cyclohexanone, 1,3-diphenyl-isobenzofuran, (9-benzylidene) -anthrone and -fluorene, 3-phenyl-coumarine, 2-phenyl-indone, acridine, (2-styryl-) -pyridine, -quinoline and -benzoxazole; these compounds may be mixed with chemical sensitizers (e.g. anthracene, tetramethyl-diamino-benzophenone, 1,2 -benzanthraquinone, and 5-nitro-acenaphthalene), optical sensitizers (e.g. carbocyanine dyes, crythrocine and 1 -amino-2,4-dibromo-anthraquinone), reducing agents (e.g. ascorbic acid, 4-nitro or 4,2-dinitrohydrazine) polymerization inhibitors (e.g. hydroquinone) and binders (e.g. gelatine, starch or cellulosic, polyvinyl or methacrylic resins); a synergistic mixture of monomers may be used.
Patent GB-142778-A (GB)
Title: Multiple automatic machine for cutting bars of soap or similar products into pieces and pressing the pieces obtained
IPC: C11D13/22
Filed: 1919-09-19
Abstract: 142,778. Brunet, G. May 3, 1919, [Convention date]. Stream-cutting machines; presses; feeding.-A machine for pressing cakes of soap &c. comprises one or more pairs of carriages A, B reciprocated in opposite directions by levers J, I operated by rods K from the shaft M, the carriages A being furnished with several die members a<1>, a<2> and the carriages B with corresponding moulds whereby each reciprocating movement of the carriages is an effective one. Bars of soap &c. are placed in vertical shoots Q and are severed by knives R on the carriages A, the cut portions falling, upon withdrawal of supports S, into spring clamps X mounted upon spindles T which are turned by cams U to position the portions in front of the die members. Levers V, operated by rods v controlled by arms u<3> and levers u<4>, open the clamps X.
Patent GB-866496-A (GB)
Title: Improvements relating to junction type transistors
Inventor: HYMAN HAROLD
IPC: H01L29/00
Filed: 1958-07-18
Abstract: 866,496. Transistors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 9, 1959 [July 18, 1958], No. 23163/58. Class 37. A method of making a transistor comprises the steps of applying doping material characteristic of one conductivity type to one face of a wafer of high resistivity semi-conductor material to produce a low resistivity region thereon, removing surplus doping material by forming a mercury amalgam and subsequently applying doping material characteristic of the opposite conductivity type to the low resistivity region to form a PN junction and to the opposite face of the wafer to form a low-resistivity region. In one embodiment (Fig. 1) indium or indium gallium alloy is alloyed to a wafer of nearly intrinsic N or P type germanium I to form a P- type layer. Excess indium is removed by first scratching it to locally remove any oxide film and then immersing in mercury to form an amalgam and dissolving the latter in nitric acid. A ring-shaped base contact WS of molybdenum plated with gallium or indium doped gold is next soldered to the P-type layer. Finally pellets of an indium arsenic donor alloy to which leads are subsequently attached are simultaneously or successively alloyed to the opposite faces of the wafer to form N-type zones. To produce a PNIP device the indium or indium gallium alloy is replaced by an indium arsenic donor alloy and vice versa. In this case the molybdenum base contact is coated with antimony or arsenic doped gold.