baber/WOPTO huggingface dataset:
Patent GB-142494-A (GB)
Title: Improvements in or relating to electric switches
Inventor: GALLO GALILEO
IPC: H01H13/56
Filed: 1920-04-29
Abstract: 142,494. Gallo, G., and Villarboito, F. April 29, 1919, [Convention date]. Switches, quickaction.-Relates to push-button-operated switches in which a contact - piece carried by a stem moving longitudinally reaches the end of its stroke in the contact position at the first actuation and release, and, on a second actuation and release is held spaced apart f r o m the contact position by a cam which t a k e s up different positions in the two movements. According to the invention, the cam is of lenticular shape and is rotated into the locking and unlocking positions by a recess and a stop at each end of the opening in which the cam moves, the recess and the stop being oppositely disposed at the two ends. As shown in Fig. 2, the spring-retracted plunger 6 has an enlarged head 5 moving within the frame 1 and carrying a contact-roller 5' to engage the fixed contacts, and a pivoted lenticular cam 9. In the position shown, the plunger is held in the non-contact position by the cam engaging the stop 11. When the plunger is pushed, the cam is caused to rotated by reason of the engagement of a spring 14 with its left-hand end, and the rotation is continued by engagement with the edge of recess 12 until the position shown in dotted lines is reached. On release of the plunger, the contact-roller is free to engage with the fixed contact, the cam taking up the dotted line position shown in Fig. 3. On a second actuation of the plunger, the left-hand point of the cam engages with the stop 13 and is brought round into the transverse position in which, on release of the plunger, it prevents the contact roller from reaching the fixed contact.
Patent GB-1508014-A (GB)
Title: Loudspeaker cabinet
IPC: H04R1/26
Filed: 1975-03-21
Abstract: 1508014 Loudspeaker cabinet MONITRON INDUSTRIES Inc 21 March 1975 11973/75 Headings H4J and H4X The volume 81 of an enclosure 11 to the rear of a loudspeaker 43 is coupled to an opening 57 via a passage 83, 85 having a tapered edge such that a Venturi effect is produced between the volume of air in the enclosure and the volume of air in the passage. The arrangement is intended to improve the bass response of the speakers. The figure shows a pair of such speaker systems for use in a stereophonic system.
Patent GB-279334-A (GB)
Title: Improvements in or relating to seat sticks
IPC: A45B5/00
Filed: 1927-05-04
Abstract: 279,334. Scadeng, G. B., and Howell & Co., Ltd., H. May 4, 1927. Folding seats; seat adjustments. -In a seat stick of the kind having telescopic elements 10, 11 adapted to be secured in adjusted position by the engagement of a pin on one element with apertures in the other element, the pin 17 is carried by an arm 15, pivoted at 16 about an axis transverse to the length of the member 10. The axis 16 is preferably intermediate the ends of the arm 15, one end of which is formed as a finger piece, and is pressed by the spring 18. The pin 17 may be so shaped as to allow extension of the members 10, 11, but to present opposite movement until it is manually released from the aperture 12. A rib 21 engaging a groove 22 may be provided to prevent relative rotation of the members 10, 11.
Patent GB-701085-A (GB)
Title: Improvements in and relating to toy guns
IPC: F41B11/89
Filed: 1952-05-12
Abstract: 701,085. Toy guns. BARNES, L. A. May 12, 1952, No. 12047/52. Class 132(3) A toy pop-gun comprises moulded complementary halves of a combined stock and butt, the stock portions of which embrace extensions 24, 25 of a barrel member 11. For assisting in the alignment of the barrel member 11 in the stock, lugs 29, provided on the interiors of the stock portions, engage recesses 28 in the upper extension 24, and ribs 31 engage the sides of lower extension 25. A lug 27, integral with the extension 24, extends upwardly through the stock to form additional barrel locating means and a backsight. The barrel member and its extensions are moulded in two parts 12, 13 which abut on the horizontal diametrical plane, and part 13 has longitudinal lap portions 17, 18 along .its outer sides. Each of the barrels of the double-barrelled member, 1 shown contains a spring operated plunger, and a trigger and sear 50, 51 coact with a transverse portion 43 of each plunger rod 37. The barrel member may .comprise extruded tubing secured in a breech element which has extensions replacing the barrel extensions 24, 25. The barrel member may have one or more than two bores. It may be divided on the vertical plane and may be constituted by single tubes secured together by a binding member at the muzzle end and in the moulded breech element.
Patent GB-1278732-A (GB)
Title: Mounting clamp for securing a waveguide of elliptical cross-section
Inventor: URBIGKEIT WALTER
IPC: F16L3/10
Filed: 1970-03-13
Abstract: 1278732 Brackets KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A G 13 March 1970 12150/70 Heading A4B [Also in Division E2] A mounting clamp for securing a waveguide of elliptical cross-section, comprises two clamping shells 1, 7 which complement one another to form an ellipse and embrace the waveguide, wherein a member 2 is connected to one of the shells 1, the member having a bow-like portion connected with the shell which is of larger size and extends beyond the outer periphery of the shell and which has a slot extending from the region of the least elliptical curvature to the region of the greatest elliptical curvature and in which is inserted, before the said shell is secured in position, a screw for the attachment of this shell. In the construction shown the strap is secured to the larger shell by loops 3 and 4 adjacent its end portions and one end portion is bent up to provide a lug 12 and the opposite end portion has a slot 5 which receives a loop 6 formed in the end portion of the smaller clamping shell so that the smaller shell is pivotally connected to the strap and hence to the larger shell. At its opposite end portion the smaller shell is provided with a lug 8 connected to it by a loop 9, the lug 8 having an aperture which receives a clamping screw 12 which engages a threaded hole in the lug 11 for clamping the shells on to the waveguide. The larger shell has a slot (not shown) in alignment with the slot 14 in the strap so that a screw driver blade can be passed through it to rotate the screw 13 by means of which the device is mounted on a support. A modified construction is described in which the member 2 is formed integrally with the larger shell and extends from one end of the shell; in this construction the lug 11 is attached to the shell instead of being a bent up portion of the strap and the pivotal connection between the two shells is also modified.
Patent GB-600451-A (GB)
Title: Direct dye planographic printing compositions
IPC: C09D11/14
Filed: 1941-09-20
Abstract: Preparations suitable for use in planographic printing of natural or regenerated cellulose fabrics, being hard at room temperature, thermoplastic with a long softening range, and substantially free from hygroscopic alcohols are obtained by incorporating a direct dyestuff and urea with a carbohydrate gum. Specified gums are various dextrins, especially highly dextrinised products such as yellow corn dextrin.  The preparations may also contain a soap, a wax, trisodium phosphate, bentonite or a wetting agent such as an ester of sulphosuccinic acid.  In examples: (1) yellow dextrin is pasted with a mixture of Cal somine fast scarlet 4BSY, ethylene glycol monoethyl ether, urea and water and to the heated mixture is added an aqueous paste, containing olive oil soap, glyceryl monostearate, trisodium phosphate and the sodium salt of the isobutyl ester of sulphosuccinic acid, the whole being then dried in vacuo until of a consistency suitable for planographic printing on pigmented rayon or cotton; (2) the product of (1) is mixed with a bentonite gel containing sodium carbonate and the mixture is dried until of a consistency suitable for planographic printing; (3) the dyestuff in (1) is replaced by Direct sky blue F.F.
Patent GB-542331-A (GB)
Title: Improvements in or relating to adhesive compositions
IPC: C09J121/02
Filed: 1940-07-26
Abstract: 542,331. Synthetic resin compositions. INTERNATIONAL LATEX PROCESSES, Ltd. July 26, 1940, No. 12184. Convention date, July 29, 1939. [Class 2 (iii)] An adhesive comprises latex and a heathardenable reaction product of a m-arylene diamine, e.g. m-phenylene diamine or a meta tolylene diamine, with an aldehyde, e.g. formaldehyde, acetaldehyde furfural or paraldehyde. By latex is meant coagulable aqueous dispersions of rubber or synthetic rubbers prepared from butadiene or its halogen substituted products and includes artificially prepared dispersions thereof as well as natural latex. The compositions may be used for bonding rubber to materials such as cotton, asbestos, wood or synthetic fibres of glass, rayon or nylon, for bonding non-rubber parts together, e.g. bonding synthetic plastics, and for bonding parts made of different types of rubber or synthetic rubber. In examples, the adhesives are prepared by adding together (a) aqueous suspensions of products obtained by re-acting formaldehyde, furfural or paraldehyde with m-phenylene diamine or 1:2:4- tolylene diamine in an aqueous medium which may contain acetic or formic acid, and (b) aqueous dispersions of rubber, chloroprene or "Perbunan" (Registered Trade Mark) and a stabilizer, with or without sulphur, zinc oxide, an accelerator and an anti-oxidant.
Patent GB-560670-A (GB)
Title: Improvements in staple fibre cutting mechanism
IPC: D01G1/04
Filed: 1942-08-31
Abstract: 560,670. Stapling continuous filament &c. AMERICAN VISCOSE CORPORATION. Aug. 31, 1942, No. 12230. Convention date, March 12, 1942. [Class 120 (iii)] Continuous filaments are cut in fibres of different staple lengths by feeding them at a constant speed in the direction of their length and cutting them by a number of cutting elements spaced apart at different distances ; means are provided for adjusting the distances between the cutting elements. As shown, the filaments are fed by a constantly rotating feed roll into the axial channel 3 of a disc 2 rotating at a constant speed and are cut by knives 11 as they emerge from the radial channel 4; the knives are carried in holders 10 adjustably fixed by bolts 12 in slots 9 in an annular plate 8 mounted upon the stand 5 in which the disc 2 is journalled; two or more knives are used and they may be grouped around the plate 8. The passage of the tilaments through the disc feed roll may be assisted by a jet or blast of fluid directed into the mouth of the channel 3. In a modification, the material is fed by a measuring godet through a tubular guide, assisted, if desired, by a jet of fluid, and is cut as it emerges from the guide by knives adjustably fixed to a disc rotatable at a constant speed. Specifications 289,028, [Class 120 (iii)], and 500,886 are referred to.
Patent GB-807442-A (GB)
Title: A machine for feeding fasteners to a driving tool
IPC: B23Q7/10
Filed: 1955-04-28
Abstract: 807,442. Fastener feeding apparatus.. TAYMOUTH INDUSTRIES Ltd. April 28. 1955 [June 23, 1954], No. 12251/55. Class 89(3) [Also in Groups XXII and XXX] A fastener feeding means comprises a passage 18, 37 for carrying fasteners from a container 3, means 12 for introducing the fasteners into, and feeding them one at a time along, the passaged and a master control fluid pressure valve 59 and a supply control valve 58 for controlling pressure to the said means. A double acting piston 6 reciprocates the elevator 12 within the hopper 3 containing screws, nails or rivets, which descend from a container 92 under the control of a baffle 93. In its upper position, a slot. 13 in the elevator registers with a passage 18 down which the screws are fed by gravity beneath a bar 21 adjusted by a screw 22 according to the kind of fastener head. At the bottom of the passage a shuttle 30, Fig. 8, having an L- shaped slot 31 receives each screw in turn in the part 33 of the slot and delivers it to the pipe 37. The shuttle is reciprocated by a forked arm 48 attached to the piston 6 and engaging a curved arm 46 which is in contact with a spring 47 engaging a forked arm 39 on the shuttle. Movement of the piston 6 also operates the screw supply control valve 58 to direct a blast of air to the pipe 37 so delivering the screw to a serving head 67 attached to a pneumatic screw driver 56. The screw is held by a number of collet fingers 81 located by a ridge 82 on the head, the fingers being held thereon by an oil-proof elastic band 83 and prevented from rotation by projections 69<SP>2</SP>. When the tool is advanced against the pressure of a spring 74, the bit 79 rotates the screw. The collet is prevented from touching and marking the work by a foot 84. In operation, pressure on an arm 86 opens the valve 62 to cause air to pass to the master control valve 59. The piston 6 and elevator 12 descend, the screw supply control valve 58 is actuated to blow a screw along the pipe 37, and the shuttle is moved to receive a further screw. The air pressure holds the screw in the collet while the tool valve control 66 is operated and the bit 79 advanced. The lever 86 is then released to allow the elevator to ascend and pick up further screws while the shuttle delivers a screw to the pipe. A spring-pressed deflector 24 prevents wrongly positioned screws from entering the passage and returns them to the hopper. In a modification, the guide bar 21 is supported by spring clips so that it may be removed for inspecting the screw feed. A modified hopper 115, 116, Fig. 16, has a baffle 117 beneath which the screws feed to the reciprocating elevator 5. A.vertical wall 117A rises from the floor of the hopper in contact with the elevator so that the screws will not jam, against opposite hopper walls. The shuttle 30 carries, on an adjustable eccentric mounting 118c, a pin which permits the screws to drop into the shuttle one at a time, as in Specification 807, 443.
Patent GB-387640-A (GB)
Title: A device for the picture-transmission, more particularly for television
IPC: H03K4/86
Filed: 1931-04-25
Abstract: 387,640. Television receivers; valve circuits. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde-Ost, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. April 25, 1931, No. 12270. Convention date, April 25, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 40 (iii) and 40 (v).] In a cathode-ray television receiver " snapinitiated " oscillations of the form shown in Fig. 1 are employed for deflecting the exploring ray. The receiver shown in Fig. 3 is for use with a transmitter in which a moving film is scanned by a transversely oscillating scanning device. It receives (1) signals denoting variations of light-intensity, which are fed to the apparatus N ; (2) oscillations of frequency 750 # which are introduced into the signals by the provision of a sharp edge to the transmitted picture, and are selected at the receiver by the tuned system T, amplified at V, and applied as sinusoidal variations of potential to the plates P1, P2, to move the cathode-pencil along the direction of the scanning-lines. These oscillations are applied also to the - frequency-divider A, with the result that snap-initiated oscillations of frequency 15 ~ are applied to the transversely deflecting plates Q1, Q2. Alternatively the transmitter may employ a Nipkow disc and the oscillations applied to both pairs of plates at the receiver are then of the " snap-initiated " type. Instead of being received from the line, the scanning frequencies may be derived from synchronized mains or from independent sources at the transmitting and receiving stations. Instead of the frequency applied to the transversely deflecting plates Q1, Q2 being stepped down from that applied to the longitudinally deflecting plates P1, P2, the former may be derived as a harmonic from the latter by the use of tuned circuits and a harmonic-producer utilizing a curved valve-characteristic. Frequency-dividers. In the two-stage frequency-divider shown in Fig. 2, a charge accumulates on the condenser C1 during ten periods of the input oscillations. The dischargetube D1 then breaks down, so that the output - frequency of the valve V1 is one-tenth of its input frequency, and the output wave-form is of the " snap-initiated " type shown in Fig. 1. A further reduction of frequency is effected in a similar manner by the valve V2 operating on the discharge-tube D2 in the second stage of the frequency-divider. To ensure correct timing, the last valve of the amplifier which feeds the apparatus is operated up to saturationpoint.
Patent GB-311079-A (GB)
Title: Improvements in or relating to hydraulic and like shock absorbers
IPC: F16F9/49
Filed: 1928-04-27
Abstract: 311,079. Newton, N. B. April 27, 1928 Fluid - friction vibrationdampers. -An hydraulic shock-absorber for vehicle suspensions &c. has a main non- resilient action and a substantial superimposed or auxiliary resilient action through which the shock is transmitted for absorption by the main action, so that the more rapid and violent movements are absorbed without undue harshness. Means such as a valve is operated by the movement of the auxiliary action to modify the main action proportionally with such movement. The construction shown in Figs. 1 and 2 comprises an outer cylinder a and an inner cylinder c mounted on a boss d in the cylinder head b, a passage d' through the boss being controlled by a regulable valve d<2>. The upper end of the cylinder a is closed by a head e, in which is formed a compensation chamber f isolated from the cylinder by a partition f<1> and a plate valve f<2>. The lower end of the piston rod g carries a main piston h, on which is slidable mounted an outer tubular portion formed of two tubes j<1>, j<2> having an annular space between them substantially equal in cross-sectional area to that of the inner tube. A. bottom plate k of the compound piston is provided with holes m, n, and the side walls of the inner tube j<1> are also provided with holes adapted to be progressively uncovered. A compression spring p is interposed between the bottom plate k and the hollow end g<1> of the piston rod g. The main piston h is formed with an upper boss h' coacting with a central hole o in an upper plate k<1> of the compound piston, a dashpot action being obtained on the return stroke. Holes q in the upper plate k<1> communicate between the upper part of the cylinder and the annular space between the tubes j<1>, j<2>. With the application of a blow, the main piston h moves down, and the tubular portion j<1>, j<2> moves up to a nearly equal extent, thus compressing the spring p and at the same time uncovering some of the holes in the tubular portion, the liquid escaping through the opening o. Thus initially the main force causing displacement of the liquid is transmitted through the spring and increases progressively and proportionally with the relative movement of the piston parts. An additional spring may be interposed between the plate k' and the main piston h. In modifications, a spring or rubber buffer is interposed between a shoulder or abutment on the piston rod and the coupling to the vehicle. Specifications 296,897 and 319,816 are referred to in the Provisional Specification.
Patent GB-768252-A (GB)
Title: Improvements relating to display or advertising devices
IPC: G09F11/23
Filed: 1954-04-28
Abstract: 768,252. Ornamenting. SESSIONS, Ltd., W., and PHILIPSON, A. L. June 22, 1955 [April 28, 1954], No. 12321/54. Class. 93. [Also in Group XVIII] An ornamental device comprises a series of arms 10 of V-shaped cross-section which are suspended at 15 and formed from a blank sheet, see Figs. 1 and 2 (not shown), or a number of separate arms. The device may have display devices suspended therefrom and envelope a display carton, see Fig. 6 (not shown). In a modification, the device is provided with two sets of arms disposed one within the other or in superimposed relationship, see Fig. 5 (not shown). The arms are interconnected by pins or clips and may bear advertisements.
Patent GB-931900-A (GB)
Title: Crystalline 1,3-pentadiene polymers with syndiotactic cis-1,4 structure
IPC: C08F136/04
Filed: 1962-03-30
Abstract: Linear polypentadienes having a content of cis-1,4 units above 65%, a syndiotactic disposition of the configurations of tertiary carbon atoms and a crystalline structure in the solid state with an identity period of about 8.5  along the chain axis are made by polymerizing trans-1,3-pentadiene in the presence of a catalyst obtained by reacting a soluble cobalt compound or complex with an alkyl aluminium dichloride complexed with an organic electron-donor substance of the Lewis base type.  A mixture of cis- and trans-pentadiene may replace the trans-pentadiene, but only the latter is polymerized and the cis-compound may function as the solvent for the reaction.  The polymerization may also be effected in a hydrocarbon diluent.  The polymer may be purified and the cis-fraction increased by solvent extraction techniques.  Catalyst systems exemplified are Al(C2H5)Cl2 +thiophene+nickel or cobalt diacetylacetonate, Al(C2H5)Cl2+pyridine+nickel or cobalt diacetylacetonate, Al2(C2H5)Cl2 + thiophene nickel or cobalt stearate.  The nickel compound may also be N1Cl2-pyridine complex, NCl2-triphenylphosphine, or N1Cl2-triphenyl stibine. The polymer may be vulcanized.
Patent GB-695352-A (GB)
Title: Improvements in and relating to microscopes and microscope objectives
Inventor: WILKINS MAURICE HUGH FREDERICK
IPC: G02B17/08
Filed: 1949-05-09
Abstract: 695,352. Microscopes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 9, 1950 [May 9, 1949], No. 12335/49. Class 97 (i). A microscope includes an objective consisting of a concave and a smaller convex mirror, the concave mirror having a central aperture for the passage of light rays and the ratio of the radii of curvature of the mirrors being in the range 3.5: 1 to 30: 1. As shown, the concave mirror 1a is mounted in a semi-cylindrical member 1 between which and the grooved extremities of a semi-cylindrical member 2 attached to the microscope tube are steel balls 3. The member 1 is thus slidable relatively to member 2 and is held in place by a steel spring 4 attached to the member 2 and to an annular member 2a integral with member 2. Such relative movement may be effected by rotation of a screw 2b which threads through member 2a and engages one end of a pin 2c mounted in a recess in member 1. The convex mirror 5a is carried by an arm 5b fast on an annular member 5 between which and member 2a are three steel balls 6, one of which rests in the space formed between registering grooves in the member and located adjacent a screw 9 whereby movement of the convex mirror can be effected in a direction normal to the axis thereof. Rotational movement of the mirror, about said one steel ball 6 as pivot is effected by a screw 7 and pin 7a, such rotational movement being against the pressure of springs 8 connected to members 2 and 2a. Data are given for three examples of the objective, and graphs are furnished from which the radius of the convex mirror, the focal length of the objective, the working distance and the mirror separation can be determined for a particular radius of the concave mirror.