baber/WOPTO huggingface dataset:
Patent GB-391645-A (GB)
Title: Improvements in or relating to photo-electric devices
IPC: H01J40/00
Filed: 1932-07-01
Abstract: 391,645. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WINCH, G. T., c/o General Electric Co., Wembley, Middlesex. July], 1932, No. 18681. [Classes 39 (i) and 40 (iii).] A photo-electric unit consists of one or more cells and one or more valves, each having its own envelope, and a completely sealed envelope enclosing the cells and valves and evacuated during manufacture of the unit ; the outer envelope may be filled with a dry gas or an insulating liquid. The cells may be of the discharge type or of the type depending on photo - conductivity. As shown, a pinch 26, in which the leads are sealed, carries two members 27 with a clamp 28 embracing the valve envelope 29. The grid terminal 32 is connected with a terminal 33 of a cell 34 by a rigid connecting member 35 supporting the cell. The valve and cell are also supported by members having resilient arms 31, 37 respectively, engaging with the outer envelope 25. High resistances 38 are connected at one end with the member 35, and at the other end with a lead through the pinch. The other lead 39 to the cell is insulated by a glass tube. The envelope 25 is sealed to the pinch by fusion ; when made of metal, the envelope is provided with a window. The valve my be used as an electrometer in known manner, the grid being highly insulated and adapted to be connected with earth or a high potential by means of a switch operated from outside the envelope 25, for example, magnetically. In another arrangement, the cell is supported on a valve which is carried by a base of insulating material having a groove in which the outer envelope is secured by wax. In a modification of this arrangement, a cell and two valves are mounted on sockets on its base. Specification 323,041, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-574521-A (GB)
Title: Improvements in or relating to portable surface grinding or polishing machines
IPC: B24B23/04
Filed: 1943-11-10
Abstract: 574,521. Grinding and polishing. CHAMPAYNE, R. J. Nov. 10, 1943, No. 18683. [Class 60] A portable surface grinding- or polishing- machine comprises a rubbing-device mounted on a flexible skirt and driven by a self-contained electric or fluid-pressure motor, or from an external source so as to perform a gyratory movement without rotation. The machine comprises a hollow housing 4 having a handle 7 and enclosing a motor 5 and supporting a rubbing-device 6, the housing 4 being of resilient material, for example, synthetic rubber, and having a thick top 10 and thinner depending skirt 11. The lower end of the skirt is closed by a plate 13 riveted at 14 to a flanged disc 15 fitting the skirt and held by a ring 17 tightened around the flange; within the skirt is mounted a compressed air motor comprising an annular casing 18 with end plates 19, 20, and having therein a cylindrical rotor 23 of diameter less than the chamber within the casing. The rotor is keyed to a shaft 25 and runs in ball bearings 26 supported in the plates 19, 20, and in the rotor are radial slots 31 supporting vanes 32; air is admitted at a port 30 and is exhausted by a port 34, and a tapered slot 33 in the casing wall ensures initial starting of the motor. On the shaft 25 is an eccentric pin 36 which engages a ball bearing 37 mounted in a stamping 39 on the plate 13 ; rotation of the shaft 25, therefore, causes the plate 13 to move in a circular path, it being held against rotation by the skirt 11. Thrust of the rubbing-device due to pressure on the work is taken by balls 40 in a cage 41 located within the disc 15, the balls engaging a ring 42 in the disc and a plate 29 secured on the end plate 20. The handle 7 is hollow and is secured to the casing 18 by means of a valve casing 46 and a hollow screw 53, which serves also as an inlet for air led to a connector 56 on the handle; in the casing 46 are the inlet and outlet ports 47, 30, and a valve 49 normally held closed by a spring 52, but controllable by a lever 9 pivoted at 57 and engaging the valve stem 51. The rubbing- device 6 comprises a rubber plate 60 with flanges 61, 62 adapted to be fitted on the plate 13, the abrasive paper &c. 65 being held by wires 67 fastened to the plate 60 by a rivet 70, and having their ends 71 in engagement with tubes 72, which, when in operative position, lie in grooves 73 in the plate 60 to clamp the ends of the paper 65; a layer of sponge rubber 66 may be provided on the plate 60. In a modification, the skirt is closed at its lower end by a rubber plate forming the support for the rubbing-device, the top of the skirt, within which the motor is located, being closed by a metal cap ; thrust is taken up by the use of thrust ball bearings.
Patent GB-631237-A (GB)
Title: Improvements in process for obtaining by galvanic means a coating for protecting magnesium from corrosion
IPC: C25D11/30
Filed: 1946-06-21
Abstract: The Specification as open to inspection under Sect. 91 describes a process for protection against corrosion (see Group XXXVI) applied to a plate of magnesium alloy containing 2.7 per cent aluminium, 0.3 per cent manganese, and 1 per cent zinc.  This subject-matter does not appear in the Specification as accepted.
Patent GB-269029-A (GB)
Title: Improvements in or relating to head-lights for vehicles
IPC: H01K1/32
Filed: 1926-07-27
Abstract: 269,029. Power, M. E. July 27, 1926. Bulbs.-In a headlight for vehicles, the front part D only of the lamp bulb is left clear, the remainder C being ground or frosted or covered with a partially translucent coating or made of opalescent or other translucent glass. The surface B' of the cap B inside the bulb and the rear portion C<1> of the glass of the bulb may be made reflecting. Reference has been directed by the Comptroller to Specificafion 266,601.
Patent GB-298672-A (GB)
Title: Improvements in automatic dough dividing and dough working machines
IPC: A21C5/00
Filed: 1927-07-14
Abstract: 298,672. Kremmling, O. July 14, 1927. Extrusion machine; feeding.- Dough is fed from a hopper to a divider or cutter through a pressureequalizing chamber by a stationary feed roll associated with a rockable roll or plunger. Fig. 1 shows a roll 161, stationary with respect to the hopper 168, associated with a pair of rolls 162, 163 of which the roll 163 is carried by a cranked lever 164 operable through a rod 167 to close the chamber 157. Fig. 3 shows a modification in which the hopper 224 is pivoted at 225 and is connected with a pair of rolls 216, 218 operable by a rod 228 and lever 214, the roll 218 being forced into engagement with the roll 213 by the wall 221 of the chamber against the action of a spring 220. Further modifications are described in which the roll 218 is replaced by a plunger in one or two parts. Fig. 8 shows a modification in which such a plunger 248 is connected to the hopper 231 and is associated with a blade 250 and discharges the dough through nozzles 254; the hopper may carry pawls 257, 258 engaging a ratchet on the shaft of the roll 233. Specification 255,107 is referred to.
Patent GB-1132539-A (GB)
Title: Ice slush dispenser
Inventor: WILCH CLARENCE NEWELL
IPC: A23G9/04
Filed: 1966-04-28
Abstract: 1,132,539. Ice-making. PHILLIPS PETROLEUM CO. 28 April, 1966, No. 18723/66. Heading F4H. Apparatus for making and dispensing slush ice comprises an agitation zone containing stirrer blades 64, 65 and a freezing zone 26 which is in communication with the agitation zone through passages 24, 25 and contains a screw conveyer 27, the latter being operated continuously to withdraw slush from and supply slush to the agitation zone. A dispensing cock 39 is mounted at the end of the freezing zone. Blades 64, 65 are mounted on a continuously rotated shaft 63 and, in the agitation zone, rotate within a rectangular frame 42, 44, 46 which is carried by a sleeve 41 surrounding the upper part of shaft 63. The frame and sleeve are capable of limited angular movement, such movement being imparted by the action of the stirred slush on a cross-piece 45 on the frame. A contact plate 43 mounted on sleeve 41 is normally spring biased against the arm 55 of a micro-switch controlling the supply of refrigerant to the freezing zone but is moved away from arm 55 to terminate the refrigerant supply when the viscosity of the slush is sufficient to rotate the frame and sleeve by a predetermined amount. Shaft 63 and screw 27 are driven by a constant speed motor 80.
Patent GB-274488-A (GB)
Title: Process for the manufacture of crotonic aldehyde and its homologues
IPC: C07C45/72
Filed: 1927-07-14
Abstract: 274,488. Distilleries des Deux- SÞvres. July 14, 1926, (Convention date]. Crotonaldehyde and its homologues; aldols. - Crotonaldehyde and its homologues are obtained by condensing in aqueous solution acetaldehyde, or a homologue thereof, with caustic soda or potash, lime, baryta or alkaline carbonates, with cooling if necessary, acidifying, and distilling the aldol formed. In examples (1) crotonaldehyde is obtained by mixing equal quantities of acetaldehyde and water, cooling and gradually adding caustic soda solution, whereafter the solution is acidified and distilled, the crotonic aldehyde distilling as a binary mixture with water; (2) alpha-ethyl- #-propylacrolein is obtained in a similar way from butylaldehyde, but in this case the liquid remaining in the still, after all the unused butylaldehyde has been distilled off, separated into two layers, from the upper of which the desired product may be extracted.
Patent GB-749962-A (GB)
Title: Piston rings
IPC: C23C4/08
Filed: 1954-06-25
Abstract: 749,962. Making compound piston-rings. BANQUAREL, A. L., and METALS Y PLATERIA RIBERA SOC. ANON. June 25, 1954 [July 10, 1953], No. 18754/54. Class 83 (2). [Also in Group XXVI] A process for manufacturing piston-rings of two metals, steel for providing the spring action and anti-friction metal, e.g. bronze, copper or lead-copper, for the sliding surface comprises cutting-rings from steel sheet, machining the outer surface of the rings and applying to the rings, either individually or stacked into a cylindrical pile, a coat of anti-friction metal, heat-treating the composite rings so formed in a furnace of controlled temperature and atmosphere, machining or grinding and finally hardening the rings. If desired the inner surface of the ring may also be coated with antifriction metal and the coating may be applied by spraying or by a powder metallurgy method. The heat treatment effects a homogenization of the metals. Dovetailed grooves may be cut in the steel ring to effect a firm connection with the anti-friction coating.
Patent GB-516436-A (GB)
Title: Improvements in and relating to driving gear for locomotives and other vehicles and engines
IPC: F16H21/36
Filed: 1938-06-24
Abstract: 516,436. Cross - head drives. TAYLOR, T., June 24, 1938, No. 18788. [Class 122 (iii)] [Also in Group XXIV] In a cross-head drive of the pin-and-slot type, a reciprocating cross-head 5 has an endless groove 10 comprising inner and outer walls engaging with opposite sides of a crank-pin 6 fixedly secured to a rotatable member, said endless groove comprising a number of symmetrically arranged cam-like parts having a. configuration such that thrust is exerted between the pin and the cross-head during substantially the whole time the cross-head is moving, the thrust being exerted during alternate halves of each stroke between the pin and the inner and outer walls of the groove respectively. The groove is substantially rhombic-shaped comprising arcuate sides 10a and arcuate corners 10b joined by inwardly-bowed parts 10c. The crankpin follows a circular track 6a, is fixed directly to a driving wheel rotating on axis 12, and is fitted with a replaceable sleeve to correct for wear. The centre of the cross-head is hollowed out as at 13, and the outer walls 11 are relatively thin, the cross-head being made from two interconnected inner and outer parts which are reversible and adjustable for wear . The crosshead may be enclosed by a casing to exclude dust, and twin coupling rods 3,3, 8,8 may be employed.
Patent GB-498395-A (GB)
Title: Improvements in or relating to record-card-controlled printing mechanism
IPC: G06K15/04
Filed: 1937-07-06
Abstract: 498,395. Typewriters &c. BRITISH TABULATING MACHINE CO., Ltd. July 6, 1937, No. 18795. Convention date, July 7, 1936. [Class 100 (iv)] [Also in Group XIX] A record-card-controlled printing-machine comprises reciprocable type-carriers, a recordcard sensing device for controlling the movement of the carriers to printing position., printing hammers, one for each carrier, mechanism for tripping the hammers to cause printing, hammer locks, one for each hammer and each individually movable to a locking setting, and operating means, controlled by a special perforation in a record card, for rendering those thus set effective to lock their hammers. Each printing hammer 82, Figs. 6, 7, 8 and 9, has a shoulder 104 and is associated with a leaf spring latch 105 secured to a bar 106 oscillatably mounted on pins 110 journalled in the frame of the machine and carrying a pivot rod 107 for pairs of cam levers 108 and 109, a pair being provided for each latch 105 and associated printing hammer 82. The lever 108 has its cam surface at a slightly greater distance from the pivot 107 than the lever 109 and when rocked from the position shown in Fig. 6 to that in Fig. 7, will depress the latch 105 so that its free end lies in the path of the shoulder 104 of the printing hammer 82 which is thus locked for all operations of the machine. The lever 109 when rocked to the position shown in Fig. 8, will move the latch 105 so that its free end is positioned near the shoulder 104, but not near enough to stop the operation of the printing hammer 82. If however the bar 106 is now rocked in a counterclockwise direction the latch 105 will be positioned to cooperate with the shoulder 104 and lock the printing hammer 82. The bar 106 is rocked through the bracket 111 to which is pivoted a link 112 connected at its lower end to an arm 113 normally held in the position shown in Fig. 2 by the armature 114 of a pair of magnets 115 which are energized under the control of a special perforation X, Fig. 11, in the " 11 " under point position of a record-card, to allow clockwise rotation of the arm 113 and rocking of the bar 106 through the mechanism 117, 118, 119, 120 controlled by the complementary cams 121 serving to reciprocate the type heads 13 once in each cycle of the machine. The printing mechanism may be substantially identical with that described in Specification 425,838 under record-card control as described in Specifications 216,142, [Class 100 (iv)], and 448,445, [Group XIX]. The printing hammers are controlled in substantially the same manner as described in Specifications 375,889, [Group XIX], and 376,302.
Patent GB-1149941-A (GB)
Title: Apparatus and method for prilling ammonium nitrate
IPC: C05C1/02
Filed: 1966-04-29
Abstract: 1,149,941. Granulating ammonium nitrate. ARMOUR AGRICULTURAL CHEMICAL CO. 29 April, 1966 [30 April, 1965], No. 18899/66. Heading B5A. [Also in Divisions B1 and C1] Ammonium nitrate is prilled by maintaining a body of liquid ammonium nitrate in a quiescent state over a plate provided with apertures so that streams of free-flowing liquid fall from the body of the liquid through an atmosphere of cooling gas, and impinging upon the free-flowing streams sonic vibrations at a frequency which causes the streams to break into droplets of substantially uniform size. In Fig. 1, liquid ammonium nitrate, preferably in the form of a 94-97% by weight aqueous solution, contained in head tank 22 controlled to give a head of 30 to 170 inches of water, is passed through line 23 and headers 24 into spray header assemblies 25. Here, a reservoir 27 of molten ammonium nitrate is maintained in a quiescent state, so that regular streams of liquid flow through the orifices in plate 29 into sound chamber 30, where sound waves from generator 32, via amplifier 33, speaker drivers 34, sound manifold lines 35 and tributary pipes 36 impinge upon the falling streams, breaking them up into regular sized droplets, as at 37, and these droplets fall through a countercurrent stream of cooling gas and are collected as regular sized prills at the base of the cooling tower. The sonic vibrations may have a frequency of 700 to 1250 c/s. Suitable types of orifice plate are described.
Patent GB-890645-A (GB)
Title: Improvements in or relating to methods of manufacturing electric circuit panels
Inventor: BILLIN JAMES JOHN
IPC: H05K1/18
Filed: 1957-06-15
Abstract: 890,645. Cutting insulating sheets. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 29, 1958 [June 15, 1957], No. 18948/57. Class 31 (1). [Also in Group XXXVI] In order to sever an insulating sheet 1, Fig. 1, supporting electrical components 3, into a plurality of individual panels, a cutting-tool having indented blades 8, 9, as shown in Fig. 3, is provided. The lead wires 4 from the components fit into the indentations and so are not cut by the blades, the material of the sheet 1, however, being suffi - ciently brittle to fracture along the uncu t portions as the blades are brought together. The wires projecting from one edge of the resultant individual panels are then cut off flush with the edge, those projecting from the other edge being left to serve as connecting pins. Specification 869,604 is referred to.
Patent GB-615528-A (GB)
Title: Improvements in or relating to knitting machines and to a method of knitting
IPC: D04B9/10
Filed: 1945-07-25
Abstract: 615,528. Knitting-machines. HEMPHILL CO. July 25, 1945, No. 19054. Convention date, Oct. 21, 1944. [Class 74(ii)] A superposed cylinder machine has arcuate sinkers 3, each of which has a yarn-drawing surface 6, behind the nib, shaped to an arc concentric with the arcuate path of its swinging movement. During the knitting operation, the sinkers are operated so that, initially, the needle loops 8 are drawn over the backs of the sinkers and through the corresponding needle loops of the previous course, which are cast off by the sinkers acting upon adjacent sinker loops 9 only, after which the newly drawn loops are transferred over the nibs to the throats of the sinkers. Specifications 586,770 and 613,897 are referred to.
Patent GB-442131-A (GB)
Title: Improvements in starting devices for internal combustion engines
Filed: 1934-06-29
Abstract: 442,131. Starting prime movers. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. June 29, 1934, No. 19263. Convention date, June 30, 1933. [Class 38 (iv)] An electromagnetic switch 8, Fig. 2, in the circuit of the starting motor S.M. of an internalcombustion engine is actuated to cause starting of the engine when a driver-actuated engine control member 2 is moved to a predetermined position, the starting motor circuit remaining closed until the engine starts irrespective of movement of the member 2 within a predetermined range. Movement of the member 2 to bring the contact 32 of the rotary switch 29 into connection with the contact 23 causes closure of the starting switch 8 which remains closed during such subsequent movement of the member 2 as permits the contact 32 to make contact with the contact 30 so that a current of holding value flows to the coil 16 of the switch 8 through the resistance 28. When the engine starts the back E.M.F. of the generator G causes de-energization and opening of the switch 8. Opening of the switch 8 may be produced during cranking by complete release of the member 2 or by opening of the ignition switch 12. In another arrangement the contact 30 is dispensed with, the resistance 28 being connected between the contact 23 and the ignition switch. In this arrangement the starting switch can only be opened during cranking by opening the ignition switch. Fig. 3 shows an internal-combustion engine having the circuit of its starting motor SM controlled by an electromagnetic switch 44 which operates in response to movement of the control member 2 as described in relation to the switch 8 in Fig. 2. An additional switch 55, 56 is however provided in the circuit of the switch 44 and is actuated to break this circuit by the centrifugal spark advance mechanism 3 when the engine speed rises above cranking speed. The switch 44 may also be used to control a solenoid 40, 41 which when energized shifts the starter pinion into gear and the closes the main starting motor circuit by means of the contacts 38.
Patent GB-1083403-A (GB)
Title: Improvements in or relating to electric contact tag bar assemblies
Inventor: DORMER KENNETH
IPC: H01R9/20
Filed: 1965-05-07
Abstract: 1,083,403. Mounting terminals; terminal boards; switch contacts. EGEN ELECTRIC Ltd. May 9, 1966 [May 7, 1965], No. 19265/65. Headings H2B and H2E. Terminals or switch contacts 2, mounted in a parallel array on an insulating board 5, e.g. in a slide switch, each have an upstanding projection (3), (Fig. 1, not shown), which engages a slot 4 in the board 5, the side edges of each projection (3) being outwardly staked by slits (6), (Fig. 3, not shown), to retain it in its slot. Narrow extensions may be provided (Fig. 5, not shown), for mounting on a printed-circuit board.
Patent GB-279945-A (GB)
Title: Improvements in or relating to fastener-inserting machines
IPC: A43D100/02
Filed: 1926-08-05
Abstract: 279,945. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Aug. 5, 1926. Setting eyelets.-A machine having punching and work-feeding means as described in Specification 114,472 is adapted to set blind and invisible eyelets and locking-hooks by means of an expansible setting die as described in Specification 12088/15. A hole is punched in the work by a punch 56 which is then moved laterally to move the hole in the work into alignment with an expansible die 28. The die 28, Fig. 9, is divided into a number of parts 46 by slots 34 and is tapered at the top to facilitate entry into the eyelets, and bears sharp ridges on its setting face 40 between each pair of successive slots to split the entering end of the eyelet barrel and ensure symmetrical setting. An ejector and expander housed in the punch 56 moves downwardly during the feeding stroke of the punch under the action of a spring, when the work is moved off the punch block 4, to force the clip from the punch into a chip collector 96 clamped to the work support, from whence it is carried off in a conduit 104. During the work feeding movement, the eyelet raceway 30 is advanced and the endmost eyelet is removed therefrom by the expansible setting die 28 and received by the concentric eyelet supporting tool 26 in which the die 28 is telescopically mounted. A stop member 82 carried by the raceway 30 contacts on its return movement with the end 80 of a spring- pressed slide member 62 on the punch bar and moves it out of engagement with a collar on the punch bar to allow the punch 56 to rise slightly under the action of a spring 74 out of the way of the expansible setting die 28 but still remain in the hole in the work. The shaft 24 carrying the die 28 rises until a lock-nut 165, for adjusting the die, contacts with a stop 175. In this position the eyelet has entered the hole punched in the work and the die has become expanded against the chip ejector expander which is now locked against upward movement by an abutment 108, and the work is pressed against an adjustable abutment 124 surrounding the punch 56. Continued upward movement of the shaft 24 moves the eyelet supporting tool 26 only, upwards, to force the eyelet into the work and against the expanded die 28 to set it. A presser foot 8 is moved down to engage the work at the conclusion of setting and during the return movement of the punch to punching position. The shaft 24 then moves down and the punch 56 and abutment 124 rise on the breaking of an operating toggle for a new setting operation.