baber/WOPTO huggingface dataset:
Patent GB-738191-A (GB)
Title: Improvements in or relating to automatic electric circuit breakers
IPC: H01H83/04
Filed: 1953-02-25
Abstract: 738,191. Protective cut-out arrangements; automatic circuit-breakers. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and HOBAN, H. C. Feb. 23, 1954 [Feb. 25, 1953], No. 5297/53. Class 38 (5). In an automatic circuit-breaker wherein the controlled circuit is tripped open by a comparatively powerful electromagnet 2 under the control of a relay 10 sensitive to a light current, e.g. an earth leakage current, the armature 1 of the electromagnet is arranged to close a locking circuit immediately its movement is initiated so that the electromagnet is rendered independent of any subsequent action, e.g. chatter, of the relay. The relay 10 may be connected between an apparatus 15 and earth and in the event of earth leakage closes its contacts 20, 21 to energize the electromagnet 2. As the armature 1 starts to rise it releases a contact-carrying spring 24 which engages a fixed contact-carrying spring 25 to complete a circuit in parallel with the contacts 20, 21 to ensure the maintenance of the supply to the electromagnet 2. The further movement of the armature 1 breaks a toggle 3 to permit the opening of the main contacts 4.. 7 under the bias of a spring (not shown). The toggle 3 may be reset and the main contacts reclosed by downward and upward movements of a lever 25a. The circuit-breaker may be tested by depressing a push button 13d, which at contacts 13a, 13c disconnects the relay 10 from the apparatus 15 and at contacts 13c, 13b connects the relay to the supply through a resistor 28.
Patent GB-1482264-A (GB)
Title: Phase shifter
IPC: H01Q9/06
Filed: 1974-07-19
Abstract: 1482264 Phase shifters INTERNATIONAL STANDARD ELECTRIC CORP 19 July 1974 [31 July 1973] 05348/77 Divided out of 1482263 Heading H1W [Also in Division H4] The description is identical to that of the parent Specification but the claims are directed to the phase shifting arrangement illustrated in Fig. 5).
Patent GB-450327-A (GB)
Title: An improved cooking utensil
IPC: A47J36/34
Filed: 1935-02-20
Abstract: 450,327. Pans &c. McERLANE, D. A., 219, Cathedral Street, Glasgow. Feb. 20, 1935, No. 5404. [Class 66] [See also Group VI] A pan or grid 2 is supported on a lazy-tongs structure which, in its simplest form, consists of a pair of frames 4, 5 pivotally connected at 6, the frame 5 being pivoted at 7 to the pan 2 and the other frame 4 being arranged, at its upper end, to slide in a slot in the tubular handle 1 when adjusted by a screw 3 carrying a manipulating knob 8. Alternatively, the handle 1 may contain a rack adjustment instead of the screw. The height of the pan or grid above the heater is thus adjustable. According to the Provisional Specification, the rack adjustment is associated with a spring in the handle, and a catch is provided for locking the lazytongs in the adjusted position.
Patent GB-351394-A (GB)
Title: Improvements in or relating to forming or profile templates
IPC: A61C9/00
Filed: 1930-02-18
Abstract: 351,394. Profile gauges for use in dentistry. MACO TEMPLATE & ENGINEERING CO., Ltd., 19, Cursitor Street, and BINYON, B., 34, Norfolk Street, Strand, both in London. Feb. 18, 1930, No. 5418. [Class 81 (ii).] A profile templet of the kind comprising a number of thin elements arranged side by side and adapted to slide lengthwise through a clamp or holder, is adapted for use in dentistry bv the provision of adjustable means for engaging the head or body of the patient, or both, to support the instrument during use. The templet comprises thin elements 1 held between bars 3, 4 provided with clamping means 6, 6, and adjustably carrying, at the top, a forked member 15,18 fitted with adjustable pads 22, 26 to engage the head of the patient. A padded element 19 passing over the patient's head is adjustably connected to the ends of the member 15. A rod 14 with a pad 28 to rest against the patient's chest is adjustably secured at the lower end of a handle 27. Members 8, 9 support the elements 1 between the bars 3, 4, which may be provided with linings 5, Fig. 4, of rubber or velvet. The clamping means 6, 6 comprise pins 7 screwed into the bar 4, passing freely through the bar 3, and provided with thumb nuts 11 bearing on the bar 3 through helical springs 12. The pins 7 are so adjusted in the bar 4 and secured by locknuts 10, that manipulation of the thumb-nuts 11 releases the elements 1 sufficiently for adjustment but does not completely loosen them. The two clamping devices 6, 6 may be replaced by a single device, or, according to the Provisional Specification one or more holding bolts or screws may be supplemented by a cam or cams bearing against the members 9 so as to exert pressure on the elements 1 in a direction normal to their length. Means may be provided to suspend the templet in front of the patient, and a protective strip of rubber or like material may be secured over the ends of the elements 1.
Patent GB-481142-A (GB)
Title: Improvements in or relating to the preparation of an alkali cyanide
IPC: C01C3/10
Filed: 1937-02-23
Abstract: Alkali metal, e.g. sodium, cyanides are prepared in a solid form by a cyclic process in which hydrocyanic acid is neutralized with a concentrated aqueous solution of an alkali metal hydroxide, a water-miscible liquid in which alkali metal cyanide is substantially insoluble is added to the neutralized solution in an amount sufficient to precipitate the alkali metal cyanide, the precipitated alkali metal cyanide is separated from the resulting aqueous liquid, solid alkali metal hydroxide is added to the aqueous liquid in an amount sufficient to cause some dehydration of the water-miscible liquid and a separation into two phases, one being a solution of alkali metal hydroxide which is neutralized with additional quantities of hydrocyanic acid and the other being the partially dehydrated water-miscible liquid which is used to precipitate out the thus formed alkali metal cyanide.  The water-miscible liquid may be ethyl, isopropyl or tertiary butyl alcohol.  The hydrocyanic acid may be employed in the liquid or gaseous form.  The precipitation of the alkali metal cyanide may be effected at 40 DEG  C.  The accumulation of water in the system may be prevented by removing a portion of the solution or by evaporation.  The solid cyanide may be dried and briquetted.
Patent GB-809369-A (GB)
Title: Improvements in and relating to injection pumps for fuel-injection internal-combustion engines
Inventor: SITTE WALTER
IPC: F02M59/44
Filed: 1956-02-22
Abstract: 809,369. Fuel injection pumps. SATZGER, E. Feb. 22, 1956, No. 5460/56. Class 102(1). [Also in Group XXVI] In a fuel injection pump for internal combustion engines in which the governor 2 is supported on and driven by the pump drive shaft 4, the latter is secured at one point only against axial displacement in only one direction and is urged in that direction by an elastic component, such as Bellville washers 17, 18, prestressed to exert a force in excess of the maximum reaction on the shaft due to the governor loading and acting in the opposite direction. Movement of the governor sleeve 5 is transmitted to the control rod 6 through a lever 7 pivoted on a pin 9 on the governor casting 3. The pump shaft 4 is carried by bearings 10, 21 and axially positioned by a collar 16 thereon being pressed by the washers 17, 18 against the bearing 10, fixed against movement to the right by a cover 14. The axial position of the sleeve 5 relative to the pivot pin 9 is thereby substantially unaffected by unequal thermal expansion between the shaft 4 and the pump casing 1. In a modification, the washers 17, 18 are replaced by a flexible bellows located between the bearing 21 and the shoulder 23 on the shaft. The shaft 4 may be axially located at a point remote from the governor and the unequal thermal expansion between the casing and the shaft used to modify the governor action, e.g. the quantity of fuel fed by the pump may be reduced as a function of the temperature rise of the pump, with the governor position unchanged, so that the load on the hot engine is reduced.
Patent GB-291499-A (GB)
Title: Improvements in or relating to variable speed electric alternating current motors
IPC: H02K17/32
Filed: 1927-02-28
Abstract: 291,499. Boulting, W. A., and Williams, A. Feb. 28, 1927. Diving-arrangements.-In an alternating-current motor, both members are rotatable and each is coupled to a lay shaft through variable speed gear, the lay shafts being coupled through reversing gear, means being provided to clutch either rotor to the driven shaft. The internal rotor 4 is carried on a shaft 1 and the external rotor 6 rotates on bearings 7, 8. A sleeve 9 fixed to the external rotor carries a leather faced pulley 10 engaging an expanding pulley 20 on a. baseplate 19, and an expanding pulley 5 on the shaft 1 engages with a leather faced pulley 22 on the base-plate; the pulleys 20, 22 are connected by a reversing gear 21. A sleeve 14 fitting loosely on the shaft 1 carries the main driving pulley 15 and the sleeve can be clutched to either rotor by means of a member 16 operated by a spindle 17 inside the hollow end of the shaft 1. The clutch is locked in position by nuts 18. In the form shown, the internal rotor 4 has a squirrel cage winding and the external rotor is fed through slip-rings 11 of the sleeve 9. For pulley speeds above half speed, the sleeve 14 is coupled to the internal rotor and regulation is effected by moving the base plate 19 inwards so that pulleys 5, 20 are expanded. For pulley speeds below half speed, the sleeve 14 is coupled to the external rotor, but in order to obtain an undirectional drive, the direction of rotation of the motor elements must be reversed. According to the Provisional Specification, the motor may have a series characteristic and control may be effected by braking the outer member or separately driving either member. Further, the inner or outer member may be regulated by the provision of another wound stator energized either from the motor winding or from an outside source.
Patent GB-1004286-A (GB)
Title: Manufacture of carboxylic acid esters
IPC: C07C51/14
Filed: 1963-02-11
Abstract: Methyl, ethyl, or propyl esters of carboxylic acids with more than 4 carbon atoms, are prepared by reacting ethylene and/or propylene, carbon mon-oxide and ROH (R = H or CH3) under superatmospheric pressure in the presence of an aqueous (70-80%) HBF4 solution, or methanolic (55-75%) HBF solution.  When ethylene is used esters of the C5, C7, C9, C11 carboxylic acids are formed, and when propylene is used C4, C7, C10, C13 carboxylic acid esters are formed, if a mixture of the two is used the acid residue contains an even number of carbon atoms.  The process may be continuous with liquified olefines and examples describe the preparation of ethyl esters of a -methyl - a  - ethylbutyric and a  - methylbutyric acid; isopropyl esters of isobutyric acid, and C7-carboxylic acids; methyl esters of C5, C7, C9- -13 and above C13 carboxylic acids; methyl esters of isobutyric acid, C7-, C10- and C13-carboxylic esters.
Patent GB-714790-A (GB)
Title: Automatic weighing machines
IPC: B65B37/08
Filed: 1952-03-04
Abstract: 714,790. Weighing apparatus. AUTOPACK, Ltd., LEE, G. A., SMITH, A. R., and HOPKINS, C. J. Feb. 19, 1953 [March 4, 1952], No. 5611/52. Class 143 The hopper a of an automatic feed weighing apparatus contains an agitator comprising an inclined disc c on a rotary spindle b.
Patent GB-266756-A (GB)
Title: Improvements in or relating to brakes, particularly for vehicles
IPC: F16D49/10
Filed: 1927-02-28
Abstract: 266,756. Tane, H. March 1, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Band.-A bra.ke, especially for vehicles, comprises a single flexible band, such as a roller chain with an attached friction lining, applied externally or internally to a drum by moving its ends towards or away from one another, one end of the band being arranged to abut on a stop. As shown in Fig. 1, the chain 5 and lining 3 are applied externally to a drum 1 by drawing together blocks 9, 10, secured to the ends of the chain, by means of a flexible cable 11' secured to the block 9 and passing through the block 10 and a sheath 11, which bears against the block 10 and is secured at 12 to a link of the chain 5. A spring 16 tends to force the blocks apart. Stops 13 are provided against one of which the block 9 or 10 abuts according to the direction of rotation of the drum. In a modification, the sheath 11 is secured to the block 10 and the stops are formed by the ends of a flange on the casing. When the chain 5, Fig. 4, and lining 3 are applied internally to a drum 1, the ends of the chain are connected to links 18, 19 pivoted together at a point 20 connected by a link 21 to a bell-crank lever 22 which is operated by a cable 23 to apply the brake against the action of a spring 16. An abutment 13 is provided for the ends of the chain.
Patent GB-452097-A (GB)
Title: Improvements in or relating to fluorescent screens
IPC: H01J29/22
Filed: 1936-02-25
Abstract: 452,097. Fluorescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 25, 1936, No. 5672. Convention date, May 27, 1935. [Class 98 (i)] Polystyrol, which does not evolve gases or vapours, is used as binding agent for the fluorescent material. It may be applied, to a support such as glass or metal, from solution in carbon tetrachloride, acetone, or methyl-ethyl ketone, the solvent being removed by evaporation. The fluorescent material is then applied from a suspension in water or other medium which does not dissolve polystyrol, whereafter adhesion is secured by heating to 80-90‹ C. Further heating to about 100‹ C. polymerizes the polystyrol. Alternatively, the fluorescent material may be applied to the support from a suspension in a polystyrol solution.
Patent GB-1065319-A (GB)
Title: Improvements in or relating to sealable ports
Inventor: DELESTRE LOUIS
IPC: A47K3/00
Filed: 1965-02-10
Abstract: 1,065,319. Pressure-resisting doors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 10, 1965 [Feb. 10, 1964], No. 5801/65. Heading F2P. [Also in Division E2] A sealable door includes a plurality of bolts or rods 17 regularly spaced around the perimeter of the door and movable parallel thereto, the bolts passing into notches provided in a fixed frame 4 and having an inclined plane causing, during the engagement of the bolts, the displacement of the door perpendicular to the plane thereof in order to tighten up a sealed joint between the door and the frame. A spindle 7, which may be mechanically or hydraulically operated, is coupled by chains 10, 12, 13 to the bolts 17, the latter being pulled inwardly against the pressure of springs 15 upon rotation of the spindle. The ends of the bolts are provided with castors 19 adapted to slide on the inclined planes of the notches.
Patent GB-1453711-A (GB)
Title: Apparatus for cleaning textile materials
IPC: D06F43/08
Filed: 1973-02-07
Abstract: 1453711 Laundering apparatus BROWN & GREEN Ltd 6 Feb 1974 [7 Feb 1973] 5916/73 Heading D1A Apparatus for cleaning textile material comprises a receiver 1 Fig. 1 for the material the receiver as described comprising a cylinder rotatable about a horizontal axis within a closed drum a storage tank 16 from which a cleaning liquid can be introduced into the receiver and passed along a closed circuit comprising pipes 3, 5 and 7 back to the receiver means viz a hopper 27 and pipe 28 to introduce water into the cleaning liquid, means to withdraw soiled cleaning liquid from the receiver and/or the closed circuit which includes a hold tank 12 for the soiled liquid, a distillation plant 19 arranged to receive soiled cleaning liquid and, after distilling it to return it to the storage tank 16, and a separating means for separating water from soiled cleaning liquid prior to distillation of the latter in the distillation plant. The water separation is necessary since the still 19 cannot operate with very high water/solvent ratios. The water separating apparatus comprises a settling tank 33 which permits the water to float on a solvent. The bottom layer of solvent is pumped by a pump 35 to the still. The water overflows via a pipe 37 to drain 38, or, if contaminated, is pumped by pump 40 to a water still 42. Solvent is condensed at 43 and returned to the storage tank 16. Any residual water in the condensate is extracted by a separator 45. The still 42 may be sensitive to a critical temperature rise when the remaining water is discharged. A second embodiment may use a centrifugal water separator.  Alternately or additionally a separator 46 may be used to separate water from soiled liquid. This may comprise a cylindrical vessel 47 Fig. 2 with tangential feed 9a the heavy solvent travelling round the vessel wall and being extracted by a pipe 9b and the light water/soap mixture being separated via an axial pipe 48. A float may control the liquid flow in the pipe 48. An alternative arrangement employs a centrifugal separator 52 Fig. 1.
Patent GB-212100-A (GB)
Title: Improvements relating to perforators used in connection with automatic telegraphy
IPC: H04L15/10
Filed: 1923-03-01
Abstract: 212,100. Elliott Bros. (London), Ltd., and Elliss, H. H. March 1, 1923. Selective perforating machines. - Relates to telegraph tape perforators, more particularly of the Wheatstone type, and comprises constructional improvements. On a base-plate h are mounted dot, space, and dash key-levers h<1>, h<2>, h<3> which actuate through lever ends 10, 20, 30 the punch and the feed mechanisms mounted on a plate l. On the back ends of the punches, between a guide n and the lever ends, are shaped shoulder pieces p which group and control the selection of the punches. This construction facilitates the removal of the punches. The tape feed is actuated through an action lever q, pivoted on a pin q<1> and extending across the key lever ends, which in moving operates an independent spring-urged lever s carrying a pawl w co-operating with a feed wheel x mounted on a spring-urged lever x<1>. On depressing the space or dot levers h<1>, h<2> a pivoted cam s<1> extending across the ends of these levers is actuated and locks the heel r of the lever s to restrict the movement of the latter and cause the limited feed necessary. The lever r remains locked until the dash lever is depressed. The movement of the pawl w is controlled by a conical-ended adjusting screw z. The tape is carried bv a holder 13 and is supported by a grooved guide 12.
Patent GB-311026-A (GB)
Title: Improvements relating to centreless grinders
IPC: B24B5/18
Filed: 1928-02-25
Abstract: 311,026. Hughes, V. A. B., (Cincinnati Grinders, Inc.). Feb. 25, 1928. Centreless grinding ; guides and rests; wheels. -In a centreless grinding machine for workpieces of small diameter having pointed ends, blanks are fed automatically from a shoot to the throat between a grinding wheel B, Fig. 3, having a centrally recessed peripheral face with projecting side flanges and a plane regulating wheel E which has a bevelled edge 25 to facilitate entry of the blanks. A shoot 34, Fig. 4, filled with prepared blanks is inserted in the machine, and is located by a groove 38 and projection 39 on the machine and secured by an eccentric 43 operated by a hand lever 42. The front of the shoot is provided with eight apertures for observation of the position of the blanks. The blanks are prevented from falling out of the shoot during insertion by means of a dog 45 on a spring 44 projecting into the guideway 31, the construction being such that on insertion the spring is deflected by a corner of the bracket 30 on the machine to withdraw the dog and allow the blanks to fall on a catch 70. A slide 57, Fig. 2, is reciprocated to and from the shoot to feed a blank to the grinding throat by means of a plunger 59, Fig. 3, and also to actuate the catch 70 and a further catch 71 by means of cam surfaces carried thereby. The slide is reciprocated by linkage 50, 56, and a shaft 48 carrying a cam 49 acting on the link 50 by means of a spring plunger 51 and an adjustable screw 53 which allows the slide to yield if it should encounter resistance. The shaft 48 is oscillated in the feeding direction by power and is returned by a spring 55. When the slide advances to feed a blank into the throat, a cam surface 66, Fig. 5, acts on the bevelled surface of a plunger 63, Figs. 4 and 5, to retract it against the pressure of a spring 68 and withdraw the catch 70 from the shoot, thus allowing a single blank to fall on the second catch 71. The catch 70 then returns under the spring action and subsequently the catch 71 is withdrawn by a similar cam to allow the blank to fall into the path of the plunger 59. On the return stroke the catch 71 again obstructs the shoot and the catch 70 is given another withdrawal by a cam surface 65 to allow another blank to fall. The blanks enter the grinding throat while the regulating wheel E is retracted automatically and rests on a work support 27, Fig. 15, having recessed portions 28, 29 to receive the grinding wheel and regulating wheel respec. tively. On the return movement of the wheel E, the blank rides up the support into the working position, and falls out past the support when the wheel is again withdrawn to a greater extent after the working operation. The slide carrying the regulating wheel is reciprocated by screw and nut mechanism actuated through gearing from a separate electric motor, hand actuated means being also provided for adjusting the slide. Specifications 278,001 and 278,003 are referred to.
Patent GB-231306-A (GB)
Title: Improvements in or relating to means for the manufacture, centrifugally, of pipes, columns and other hollow articles
IPC: B28B21/32
Filed: 1924-03-08
Abstract: 231,306. Moir-Buchanan Centrifugal Processes Ltd., and Dundas, K. March 8, 1924. Centrifugal machines.-In centrifugal moulding of the kind wherein the plastic material is fed from a longitudinally movable trough 18, a mould or pipe to be lined has removably secured to the exterior two toothed or V-grooved rings 5, each adapted to engage with two complementary toothed or V-grooved supporting wheels 11. In Fig. 1, the rings are shown with teeth 6 shrouded as at 7, and in Fig. 4, a. ring 5<b> is shown having three V-section teeth. The supporting-wheels 11 are carried by a frame 10 and are mounted on a pair of shafts 12 either of which may be driven. Wheels 13 mounted in holders 14 capable of horizontal adjustment in slides 15 are provided in each frame 10 to bear upon the rings and to prevent upward movement of the mould or pipe. The trough 18 which may be a cylinder with a longitudinal gap, is rotatable about an axis 22 accentric to the axis 23 of rotation of the mould. After the trough has been advanced into the mould a shaft 24 is rotated to empty the trough, by means of a self-locking gear such as a worm 26 and worm-wheel 27. Bv reversing the direction of rotation of the shaft 24 a blade 28 on the trough can be held at the correct cutting or dressing distance from the mould or pipe. A hand lever may be employed for operating the trough when the latter is of small diameter. The mould may be in two parts 1, 2.
Patent GB-622212-A (GB)
Title: Improvements in constructional elements
IPC: A63H33/10
Filed: 1946-02-27
Abstract: 622,212. Toy constructional elements THORNTON, A. A. (Baumgartner C. H.). Feb. 27, 1946, No. 6132. [Class 132 (iii)] A set of toy constructional elements comprises a plurality of rods, plates and coupling elements, each coupling element 3, 7 having two grooves 4, 4a disposed at an angle to one another to receive rods such as 5, 9, and each being provided with two clamping screws 2, 6 or 8, 10 to engage the rods with the edge of the inner face of their heads, plates such as 1 being also clamped to the elements by the engagement of a clamping screw 2 in an aperture in the plate. Specification 500,629 is referred to.