baber/WOPTO huggingface dataset:
Patent GB-579329-A (GB)
Title: Improvements in or relating to gas-air mixers suitable for internal combustion engines
IPC: F02M21/04
Filed: 1943-05-14
Abstract: 579,329. Gas-air mixers. PEARCE, M. May 14, 1943, No. 7711. [Class 7 (ii)] A gas-air mixing device of the kind supplied with gas under pressure controlled by a main regulating valve operated by the depression in a venturi tube through which the air flows is provided downstream of the mixture throttle 5 with an adjustable pilot nozzle 8, the suction on which, when the throttle valve is nearly closed cannot be applied directly to the main nozzle 2 at the throat of the venturi tube 1. The main nozzle may be isolated by a non-return valve in the gas supply conduit if the pilot nozzle is fed therefrom but as shown the pilot nozzle is fed from the gas main 7a past a spring-pressed regulating valve 19 controlled by a diaphragm 14 exposed on its lower side to the gas supply and on its upper side to the atmosphere. A pipe 10 conveys the gas to a chamber 9 on the mixture passage 27, the chamber housing the pilot nozzle 8 and also a transition nozzle 25 disposed close to but upstream of the mixture throttle 5.
Patent GB-923906-A (GB)
Title: Improvements in or relating to insulated electrical conductors
Inventor: JORDAN REGINALD JOHN
IPC: B29C48/05
Filed: 1960-03-04
Abstract: 923,906. Conductors. PIRELLI GENERAL CABLE WORKS Ltd. Feb. 22, 1961 [March 4, 1960], No. 7724/60. Class 36. The extruded plastics insulation 6 of a conductor 1 has incorporated in it during extrusion reinforcing threads 6 of higher tensile strength. The threads 6 e.g. of rayon, nylon or metal are fed through apertures 5 in a die and together with the conductor 1 pass through a further die 3, the plastics insulating composition 4 e.g. P.V.C. being injected in a conventional manner. The threads may be completely embedded or may be partially embedded in the inner or outer surface of the insulant.
Patent GB-545068-A (GB)
Title: Improved spark plug and methods of making the same
IPC: H01T13/34
Filed: 1941-06-24
Abstract: 545,068. Sparking-plugs. GENERAL MOTORS CORPORATION. June 24, 1941, No. 7913. Convention date, July 27, 1940. Addition to 494,701. [Class 7 (iv)] [Also in Group XXXVI] A spark plug comprises a centre electrode in two parts 18, 22 connected by an electrically conductive glass seal 32, preferably of borosilicate glass mixed with powdered copper, and means such as a flange 36 at the top of the upper part for ensuring the maintenance of a fixed distance between the two parts, one of which is so formed, as at 30, as to interlock with the glass seal, and the insulator 10 having a threaded or roughened inner surface 34 for the same purpose. A heat-resisting gasket 28 is preferably provided. The parts are assembled by the method described in the parent Specification. In modifications, the upper part 18 of the electrode may be in two concentric parts or the electrode may be in three parts lengthwise, Fig. 3, the lowest part 122 having a shoulder 124 and an undercut portion 126 for engagement with the sealing material 128 which may be solid or annular and is in two concentric parts the central part 130 being made of a glass-metal mixture adapted to bond well to the electrode metal and the outer part 132 being made of a glass-metal mixture adapted to bond well with the insulator 10 and with the mixture 130. The middle part 134 of the electrode is bonded to the upper part 142 by sealing composition 144.
Patent GB-576251-A (GB)
Title: Improvements in and relating to vitreous seals
IPC: H01J5/32
Filed: 1944-04-27
Abstract: 576,251. Vitreous seals. BRITISH THOMSON-HOUSTON CO., Ltd., and KNIGHT, H. de B. April 27, 1944, No. 7916. [Class 36] {Also in Group XXIII] Thin glass seals 2 forming endclosures for casings (e.g., electricdischarge devices) formed of vitreous material or metal are reinforced by ceramic or other refractory material 1, of corresponding thermal expansibility, to prevent distortion of the glass element during manufacture, or in use. The Figure shows such a reinforced end-cap provided with lead-in wires 3, the flanged edge of the glass being shaped for attachment to a metal casing 5.
Patent GB-374527-A (GB)
Title: Improvements in knitting machines
IPC: D04B7/04
Filed: 1931-03-16
Abstract: 374,527. Parallel knitting-machines. AKTIEBOLAGET PER PERSSONS V€FOCH STICKMASKIN, 22, Alstr÷mergatan, Stockholm. March 16,1931, No. 8003. Convention date, March 22, 1930. [Class 74 (ii).] The stroke of the cam carriage is variable with regard to its length and also as to position and the shifting of the members of the machine determined by the different knitting operations is effected automatically substantially at the time of the return of the carriage and independently of the length of the stroke. The carriage is connected by a link 45 and crank 44 to a return device 6 which is traversed between adjustable stops 42 on guides 43 by a chain 5. At each reversal worm wheels 107, 108 transmit an intermittent movement to shafts 7, 14, cam 10 and a crank and link system 47, 49, 50 by which a band of cards on jacquard drum 52 is fed onwards. Card perforations which pass under feelers 18 cause corresponding props 16 connected thereto, to be moved into the vertical position and engage pins 20 on cranks 66. A cam 15 on the shaft 14 then operates the cranks, and shafts 55, 25 connected. thereto. In this way the positions of parts such as stitch cams and thread guides are set or adjusted during the working of the machine.
Patent GB-494338-A (GB)
Title: Improvements in synchromesh gears
IPC: F16D23/04
Filed: 1937-03-19
Abstract: 494,338. Positive clutches. HAWORTH, L. March 19, 1937, No. 8123. [Class 80 (ii)] In synchromesh change-gear mechanism in which the engagement of a pair of friction elements, prior to the engagement of dog elements, produces a rotation of the movable friction element relative to its associated slidable dog element whereby, through cam surfaces, an axial thrust is imparted to the movable friction element so as to press it more firmly against the fixed friction element, the reaction to the axial thrust is transmitted to the gear shaft through cushioning means. A two-part sleeve C, C<1>, shown developed in Fig. 2, and carrying a friction cone at each end, encircles a doubleended dog member B‹ splined on the gear shaft A and is itself encircled by a fork-actuated sleeve D which is connected to the member B<6> by pins D<2> passing through slots D<3> in the adjacent ends of the sleeves C, C<1> these ends being normally drawn together by springs (not shown). In the neutral position shown, spring detents E<4> in the member B<6> engage circumferential grooves E<5> in the sleeves C, C<1>, so as normally to prevent relative axial movement between the members B<6>, C, and C<1>, while spring detents E<6> in the member B<6> engage axial grooves E<7> in the sleeves C, C<1>, so as normally to prevent relative angular movement between the members B<6>, C, and C<1>. The ends of a cross-pin E, which is capable of axial movement in the shaft A in either direction against springs F<1>, pass through slots E<2> in the member B<6> and engage cam slots E<3> in the adjacent ends of the sleeves C, C<1>. If the connected members D, B<6> are moved, say, to the right, for engaging the member B<6> with dogs on a freely-mounted but axiallyfixed pinion B<2>, the sleeve C<1> is carried along by the detents E<4> and is brought into frictional engagement with the gear B<2>. The consequent rotation of sleeve C<1> relative to member B<6> firstly, brings the pins D<2> into. side notches D<4> in the slots D<3> so as to prevent further movement of the member B<6> until synchronism is reached, and, secondly, causes the pin E to coact with the cam slots E<3> so as to impart an additional thrust to the sleeve C', the reaction to this thrust being transmitted to the shaft A through one of the springs F<1>. When synchronism is attained, the member B<6> can be moved into engagement, the sleeve C<1> being retracted by its springs. The detents E<4> then engage other circumferential grooves E<12> in the sleeve C<1> to maintain the dog clutch engaged. Specification 440,126 is referred to. According to the Provisional Specification, the pin E may be secured to the shaft A.
Patent GB-557884-A (GB)
Title: Improvements in or relating to multiple tool holders for lathes, drilling machines, boring machines or the like
IPC: B23B29/24
Filed: 1942-06-15
Abstract: 557,884. Turret tool-holders for lathes &c. CREED, A. B. June 15, 1942, No. 8155. [Class 83 (iii)] A turret tool-holder for a lathe, drilling machine &c. has a shank 1 mountable in a tailstock and an offset head 2 forming a base for a turret 3 movable around a pin 6 inclined at about 105 degrees to the shank. The tool sockets 9 are also inclined to the plane of the base and located so that as the turret is rotated the tools clear the shank and come successively into alignment with the shank. The tools are secured by locking screws 10. The turret is located in its indexed positions by a pair of plungers 12 which are urged by a flat leaf-spring 13 into engagement with V-section radial grooves 14 in the turret. The holes 9 may be prolonged by smaller holes 15 through which a pm may be inserted to eject a tool from its socket. The milled nut 8 may be replaced by a handle or lever.
Patent GB-271797-A (GB)
Title: Improvements in metal trucks
IPC: B61D11/02
Filed: 1927-03-24
Abstract: 271,797. Stier, H., (trading as Elektro- Schweisswerk und Ingenieurbiiro H. Stier). March 24, 1927. Sides; floors.-Metal trucks are built up of one or more U-shaped zinc-coated plates a forming the sides and base and zinc-coated end plates b which are jointed together by welding at a number of spaced points c along their edges, the welded parts being subsequently sprayed with zinc to replace any of the protective zinc-coating which may have been melted away in the welding operations. Electric welding performed wholly on the outside is preferred, and similar joints f may be made between the body and under-frame d, and between the body and reinforcing rim e.
Patent GB-982659-A (GB)
Title: Improvements in or relating to smokers' ash-trays
IPC: A24F19/00
Filed: 1961-03-07
Abstract: 982,659. Smokers' ash-trays. R. H. THEAKSTON. March 7, 1962 [March 7, 1961], No. 8284/61. Heading A2M. A bridge 4 for a smokers' ash-tray 1 has one or more holes 5 of tapering crosssection formed downwardly therethrough and may be integral with or permanently or removably secured to the ash-tray 1. Grooves 7 are provided as cigarette rests.
Patent GB-1299965-A (GB)
Title: Method and apparatus for assembling porous point writing instruments
Inventor: JOZENS VICTOR
IPC: B43K15/02
Filed: 1970-02-20
Abstract: 1299965 Felt nib pens GILLETTE CO 20 Feb 1970 [3 March 1969] 8356/70 Heading A4K A fibre nib pen is automatically assembled by feeding a pen barrel B to the uppermost pen barrel receiving recesses of a plurality of circumferentially spaced recesses in a barrel index drum 20, simultaneously feeding a dry fibrous wick W into one of a plurality of split bushings 46 circumferentially spaced about a wick index drum 40, said one bushing being axially aligned with the uppermost pen barrel receiving recesses, moving the aligned barrel and wick by rotation of the two index drums to a position in which the wick is filled with ink from a reciprocating ink discharge tube 105 which engages with an opening 50 in the upper split bushing 49, rotating the two index drums to a third position in which a plunger (122), Fig. 12 (not shown) axially moves the ink filled wick into the barrel B and a pen tip (T), Figs. 13 and 14 (not shown) is fed from a hopper into axial alignment with the forward end of the barrel and thereafter axially driving the tip into the barrel so that the tip is embedded into the forward end of the wick and rotating the index drums to a fourth position in which a stake (S), Figs. 15-17 (not shown) is driven through the forward end of the pen barrel and the tip so as to secure the tip therein.
Patent GB-380733-A (GB)
Title: Water trap for arresting explosion waves in gas apparatus and pipe lines
IPC: A62C4/02
Filed: 1932-03-21
Abstract: 380,733. Hydraulic seals for minimizing explosions. WEESE, E., 16, Karlsbaderstrasse, Grunewald, Berlin. March 21, 1932, No. 8391. [Class 135.] A water trap for arresting back explosion waves in gas apparatus and pipe lines comprises inner and outer compartments a, al, as shown, in the Figure, with inlet and outlet pipes b, k. The gas normally passes from the pipe b through the water seal into the inner chamber a and then through the coiled conduit c and throttling device d into the outer chamber a<1> from which it passes through a second throttling device e into the discharge pipe. Any back explosion raises the water level in the inner chamber a and closes off the inlet pipe b whilst the explosion wave is also retarded in the detour conduit c and dissipated by the throttling device d. A cut-off valve operated by a float in the water seal and disposed in the inlet or discharge pipe may be used additionally.
Patent GB-176677-A (GB)
Title: Improvements in lids or covers for vegetable produce and the like baskets or receptacles
IPC: B65D51/02
Filed: 1921-03-18
Abstract: 176,677. Monro, G. March 18, 1921. Lids.-A rigid lid for a basket of the kind described in Specification 167,705 comprises a top piece and a pair of transverse battens c which project beyond the edges of the top piece and form a recess adapted to receive the handle of the basket. The top piece may be composed of two flat pieces of wood a, b, and may be strengthened by four or more transverse battens. The lid is sprung into place on the basket by depressing the handle, and is secured in position by binding-twine passed through the recesses e formed in the lid.
Patent GB-146586-A (GB)
Title: Improvements in switch gear for electromagnetic wave transmission and reception systems
IPC: H04B1/48
Filed: 1919-04-04
Abstract: 146,586. Eckersley, P. P. April 4, 1919. Wireless signalling.-A switch 1 connects the aerial 2 either to a receiving-set 10 or to the inductance 5 of a thermionic generator. The transmitter anode 3 is permanently connected to the aerial 2, so that the high-tension anode circuit is opened and closed by the same switch-contact 4 which connects the aerial to the inductance 5, whereby only two switch-contacts are necessary. The switch may be operated by a magnet 11 energized by the filament battery 12 under control of a key 13.
Patent GB-1013602-A (GB)
Title: Improvements in or relating to power transmission systems
IPC: F16H47/00
Filed: 1962-03-06
Abstract: 1,013,602. Hydromechanical change speed gear. J. H. GOOCH. March 5, 1963 [March 6. 1962], No. 8578/62. Heading F2D. In a change speed gear for road or rail vehicles or ships wherein an hydraulic coupling h 1  or other slip coupling and a clutch S. which engages automatically when its input speed reaches its output speed, are in parallel power paths between input and output shafts, the power path including the hydraulic coupling h 1  is capable of driving the output shaft at a greater speed than the clutch S so that the output shaft is driven through the fluid coupling when the latter is filled and is driven through the clutch S when the coupling is emptied. The clutch S may be locked engaged or disengaged. As shown a further power path including a second hydraulic coupling h 2  provides a reverse ratio when the latter coupling is filled and the clutch S is locked in the disengaged position. As shown the power path through the clutch S provides a direct drive whilst the power path through the fluid coupling h 1  provides an overdrive ratio. In Fig. 1 (not shown) the input and output shafts are parallel and both power paths provide a reduction ratio. In Fig. 4 (not shown) an additional clutch, similar to the clutch S, is provided between the gear output shaft and a final output shaft so that the latter may be driven from an auxiliary engine.
Patent GB-1040282-A (GB)
Title: Card selecting apparatus
Inventor: NOVAK WARREN D
IPC: G06K17/00
Filed: 1963-03-04
Abstract: 1,040,282. Selecting record cards. MOSLER SAFE CO. March 4, 1963, No. 8585/63. Heading G4M. A card is selected from a stock by engaging all cards except the desired one by selector means and directing a gas stream against an edge portion of the cards, whereby the selected card is displaced relative to the stack. Card selection may be made by means of needles passed through perforations in the cards, selected ones of which are slotted out to the edge of the card, or, as in the preferred embodiment shown, selector bars are moved to an active position to co-operate with notches in the edge of the card. The card container 51, Fig. 7, is reciprocated along slide rails 56, 57 by a cam which is rotated by motor 58, and a stationary nozzle connected to a compressedair supply is located underneath container 51 in line with vertical plate 65. A set of selector bars 174, Fig. 17 (not shown), is provided. All the bars are moved to the left at the start of a selection operation by means of a rotary solenoid 167, but only two of the bars are retained in the active position by their associated latch pins 197 which are actuated by solenoids 191, 192 energized by selected pushbuttons. When the desired card passes over the nozzle, it is displaced upwards and is engaged by rollers (not shown) at the lower ends of brackets 103, 104. Switches associated with these rollers are actuated on entry of the card between the rollers and stop motors 8 to arrest container 51, cut off the air jet and release the energized latching solenoids so that the active selector bars are withdrawn by springs 177, before the bars engage the bottom of the notches on the leading edge of the card. The card continues to be driven upwards by the rollers, passes through rollers 84, 106 and finally engages a pivoted bar 102 to operate a further set of switches. One of these switches stops the motor driving the upper and lower pairs of rollers, and another switch re-starts motor 58 which thereupon drives container 51 to a reference position in which the front of the stack of cards is directly below plate 65. The card is held in position by rollers 84, 106, and a microfilm insert therein may be viewed through window 101. On actuation of a " return " button, the upper and lower pairs of rollers are driven in the reverse direction to return the card to the front of the stack.
Patent GB-774880-A (GB)
Title: Improvements in or relating to sheet separating machines
IPC: B65H5/02
Filed: 1954-03-24
Abstract: 774,880. Feeding sheets. BACKHOUSE, H. T. March 24, 1955 [March 24, 1954; Jan. 17, 1955],'Nos. 8652/55 and 1410/55. Divided out of 774,874. Class 100(1) In sheet-separating and forwarding apparatus in which sheets are separated one by one from the top of a pile and forwarded by means gripping the rear edge of each sheet and moving it over the top of the pile to conveyer means, the latter runs at a substantially constant speed and conveys the sheets at a substantially greater speed than the forwarding means. The forwarding means may also separate, or assist in separating, sheets from the pile. As shown, the forwarding means comprises two' suction grippers 2 carried by arms 3 secured to a cam shaft 4 having both oscillatory and axial movements. The grippers 2 take each top sheet 5 from known sheet separating means comprising two suction grippers and an air-blast nozzle, and swing forward over the pile to the position shown in chain-lines to present the forward edge to a tape conveyer 20 which conveys the sheets in overlapping relationship to a layboard. The conveyer speed may be twice that of the grippers 2, so that during the forwarding movement by the grippers the front portion of each sheet is pulled forward by friction from the tail 21 of the preceding sheet, the operation being assisted by an air blast. The shaft 4 is reciprocated axially, to impart a sideways movement to each sheet forwarded, by means described in Specification 774,879. Specifications 427,041, 741,226 and 774,875 are referred to.
Patent GB-1438962-A (GB)
Title: Vehicle window regulator guide roller assemblies
IPC: E05F11/38
Filed: 1973-02-22
Abstract: 1438962 Vehicle window regulator guide roller assemblies GENERAL MOTORS Ltd 7 Feb 1974 [22 Feb 1973] 8693/73 Heading E2M [Also in Division F2] In a vehicle window regulator, a roller 16 having a skirt 22 is mounted by a universal pivot 14, 20 on a pivot pin 8 fixed to a lift arm 4 so that the skirt projects into a dished area 6 of the arm 4. Resilient fingers 26 are provided on the roller to engage a channel in which the roller is mounted to minimise rattling. In a second embodiment an annular series of fingers separated by spaces extends from the skirt to engage the dished area 6. The universal joint may be a hall joint in which the joint is assembled by dropping the ball in the socket, or is a "snap" fit ball joint, or a joint having cooperating frusto-conical portions.
Patent GB-1014008-A (GB)
Title: Improvements in or relating to bottle carriers
IPC: B65D71/58
Filed: 1964-03-02
Abstract: 1,014,008. Paperboard bottle carriers. CONTINENTAL CAN CO. Inc. March 2, 1964 [March 1, 1963], No. 8762/64. Heading B8P. A collapsible bottle carrier 11 has two parallel rows of four bottle-receiving cells 65 . . . 68 each and is constructed from a blank 10 of sheet material comprising two substantially identical blank portions 12, 13 joined along a central transverse fold line 14. The bottle carrier comprises a bottom 16, opposite side walls 18 which extend upwardly from two opposite edges 15 of the bottom and end walls 27, 35. A pair of cross partitions 36, 37 are formed from an upper portion of each of the side walls 18 and extend inwardly to be joined to a centre partition 61. A partition member 60 lies between each pair of cross partitions 36, 37.
Patent GB-1131216-A (GB)
Title: Imidazolidine derivatives
Inventor: CURRIE ANDREW COCHRAN
IPC: C07D233/40
Filed: 1966-02-28
Abstract: 1,131,216. Imidazolidine derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Nov., 1966 [28 Feb., 1966], No. 8765/66. Heading C2C. Compounds of the formula wherein R and R<SP>1</SP>, which may be the same or different, each represents hydrogen or an alkyl, substituted alkyl, aryl, substituted aryl, acyl or aroyl groups, may be obtained by treating 4,5-dihydroxy-imidazolidin-2-one or 4,5-dihydroxy - 2 - nitrimino - imidazolidine or a 4,5-diether or a 4,5-diester of either of these compounds with a nitrating agent. The reaction may be effected at atmospheric pressure at - 10‹ C. to + 20‹ C., suitable nitrating agents being nitric acid or a mixture of nitric acid/acetic anhydride. Specific examples of the radicals R and R<SP>1</SP> are hydrogen and methyl, ethyl and acetyl radicals.