Toggle

Toggle (pronounced tog-uhl)

(1) A pin, bolt or rod placed transversely through a chain, an eye or loop in a rope etc, as to bind it temporarily to another chain or rope similarly treated.

(2) In various types of machinery, a toggle joint, or a device having one.

(3) An ornamental, rod-shaped button for inserting into a large buttonhole, loop or frog, used especially on sports clothes.

(4) In theatre, a wooden batten across the width of a flat, for strengthening the frame (Also called the toggle rail).

(5) In engineering and construction, a metal device for fastening a toggle rail to a frame (also called a toggle iron.); a horizontal piece of wood that is placed on a door, flat, or other wooden structure, but is not on one of the edges of the structure; an appliance for transmitting force at right angles to its direction.

(6) To furnish with a toggle or to bind or fasten with a toggle.

(7) In informal use, to turn, twist, or manipulate a toggle switch; dial or turn the switch of a device (often in the form “to toggle between” alternate states).

(8) A type of switch widely used in motor vehicles until outlawed by safety legislation in the 1960s.

(9) In admiralty jargon, a wooden or metal pin, short rod, crosspiece or similar, fixed transversely in the eye of a rope or chain to be secured to any other loop, ring, or bight.

In computer operating systems and applications, an expression indicating a switch of view, contest, feed, option et al.

(11) In sky-diving, a loop of webbing or a dowel affixed to the end of the steering & brake lines of a parachute providing a means of control.

(12) In whaling, as toggling harpoon, a pre-modern (believed to date from circa 5300 BC) harvesting tool used to impale a whale when thrown.

1769: In the sense of a "pin passed through the eye of a rope, strap, or bolt to hold it in place" it’s of unknown origin but etymologists agree it’s of nautical origin (though not necessarily from the Royal Navy) thus the speculation that it’s a frequentative form of “tug” or “to tug” (in the sense of “to pull”), the evolution influenced by regional (or class-defined) pronunciations similar to tog.  The wall fastener was first sold in 1934 although the toggle bolt had been in use since 1994.  The term “toggle switch” was first used in 1938 although such devices had long been in use in the electrical industry and they were widely used in motor vehicles until outlawed by safety legislation in the 1960s.  In computing, toggle was first documented in 1979 when it referred to a keyboard combination which alternates the function between on & off (in the sense of switching between functions or states as opposed to on & off in the conventional sense).  The verb toggle dated from 1836 in the sense of “make secure with a toggle” and was a direct development from the noun.  In computing, the toggle function (“to toggle back and forth between different actions") was first described in 1982 when documenting the embryonic implementations of multi-tasking (then TSRs (terminate & stay resident programs).  Toggle is a noun, verb & adjective, toggled & toggling are verbs, toggler, toggery and (the rare) togglability are nouns and togglable (the alternative spelling is toggleable) is an adjective; the noun plural is toggles.  Use of the mysterious togglability (the quality of being togglable) seems to be restricted to computer operating systems to distinguish between that which can be switched between and that which is a stand-alone function which must be loaded & terminated.

The Jaguar E-Type (XKE) and the toggle switches

1964 Jaguar E-Type roadster

Jaguar’s E-Type (XKE), launched at the now defunct Geneva Motor Show in 1961, was one of the more seductive shapes ever rendered in metal.  Enzo Ferrari (1898-1988) was at the show and part of E-Type folklore is he called it “the most beautiful car in the world”.  Whether those words ever passed his lips isn’t certain because the sources vary slightly in detail and il Commendatore apparently never confirmed or denied the sentiment but it’s easy to believe and many to this day agree.  If just looking at the thing was something visceral then driving one was more than usually tactile and more than sixty years on, the appeal remains, even if some aspects in the early models (such as the seats which looked welcoming but frankly were uncomfortable and the rather agricultural (no synchromesh on first gear) Moss gearbox) were a little too tactile.

1961 Jaguar E-Type OTS (Open Two Seater, now usually called a "roadster") with toggle switches.  Ergonomically, the layout was not wholly successful but was an ascetic delight and the toggle switches are thought more sexy than the later rockers.  There are two different patterns for the aluminium panel and the one used on the very early cars is much prized; it has never been available as a re-production.  In 1963, as a running change (the factory bulletin indicating it was done to reduce glare) the panel used a black vinyl covering.

Another feature of the early (1961-1967) cars admired both for their appearance and pleasure of operation touch was the centrally-located array of toggle switches which controlled functions such as lighting and windscreen wipers.  Even by the slight standards of the 1960s, ergonomically the arrangement wasn’t ideal but, sitting under the gauges, it was an elegant and impressive look the factory would retain across the range for more than a decade, the E-type using the layout until production ended in 1974 (and it endured on the low-volume Daimler DS420 limousine until 1992).  However, while the layout survived, the toggle switches did not, the protruding sharpness judged dangerous by the NHSB (the National Highway Safety Bureau (which in 1970 became the National Highway Traffic Safety Administration (NHTSA) under the newly established US DOT (Department of Transportation, established by an act of Congress on 15 October 1966 and beginning operation on 1 April 1967) which, since the publication of Ralph Nader’s (b 1934) Unsafe at any Speed (1965) had begun to write legislation which stipulated standards for automobile safety, this in parallel with the growing body of law designed to reduce emissions.

1973 Jaguar E-Type roadster with rocker switches.  On the roadsters, the far-right switch was un-labeled because it was functional only on the coupés where it activated the rear-window demister.  On the XJ sedans (which used the same switch assembly), it swapped the flow between the twin fuel tanks.  When the S2 XJ was released in 1973, the whole dashboard was revised, greatly improving the ergonomics but lacking the visual appeal.  

In 1968, the new wave of legislation came mostly from the US DOT so applied almost exclusively to vehicles sold in the US but such was the importance of that market it made little sense for Jaguar to continue to produce a separate line for with toggle switches for sale in the rest of the word (RoW) so the decision was taken to standardize on the flatter, more rounded rocker switches.  At much the same time, other changes were made to ensure the E-Type on sale in 1968 would conform also to all the other new rules, the most obvious being the banning of the lovely covered headlights which necessitated their replacement with higher-mounted units in a scalloped housing.  In view of the extent of the changes required, it was decided to designate the updated cars as the “Series 2” (S2) E-Type.  Despite the perceptions of some, now fuelled by internet posts and re-posts, by 1967, Jaguar, while not a mass-production operation along the lines of a computerized Detroit assembly line, had long since ceased to be a cottage industry and as a change was made in a model’s specification, except for specified batches, that was applied to all production after a certain date.  Despite the factory’s records documenting this, urban myths continue to circulate, stimulated by “unicorns” such as the handful of 3.8 litre Mark 2 sedans built after 1967 when the line was rationalized (as the 240 & 340) and restricted to the 2.4 & 3.4 litre XK-Six; those 3.8s were “special orders” and not ad-hoc aberrations from the line.  However, nothing in the era has resulted in as much misinformation as the specification of what came (unofficially) to be called the Series 1.25 & 1.5 E-Types, the most common myth being that before S2 production proper began, some cars left the factory with a sometimes unpredictable mix of S1 & S2 parts, this haphazardness accounted for by the expedient of “using up stock”.  In the industry, (even in computerized Detroit) the practice was not unknown but there’s now no doubt it never applied to the 1967 E-Types.  What notably attracts speculation is the phenomenon of “overlap”: a Jaguar might be found to include some “later” or “earlier” features than the build date would indicate should be fitted.  It's part of the charm of the breed and is thought to be the result of the recorded “build date” reflecting when a car passed the final quality control checks so one with an earlier chassis number could be returned for rectification, thus picking up what appears to be an “out-of-sequence” date.  

The pure lines of the S1 E-Type (top) were diluted, front and rear, by the need to comply with US safety legislation, the later S2's head & taillights more clunky.  The collector market slang for the later headlight treatment is "sugar scoop".

The process by which S1 evolved into S2 was transitional which is why the designations S1.25 & 1.5 became accepted; not used by the factory, they’re said to have been “invented” by JCNA (Jaguar Clubs of North America), the S1.25 run beginning on 11 January 1967 after production resumed following the Christmas holiday while the first 1.5s were built that August.  Although much is made in the collector community of the defining differences between the “pure” S1 and the “transitional” S1.25 & S1.5, that “purity” is nuanced because like many others, the E-Type was subject to constant product development with changes appearing from time to time.  Early in the model run, there were some obvious changes such as (1) the modification to the “flat floors” to provide more leg-room, (2) the integration of the bonnet (hood) louvers into the pressing, (3) the external bonnet (really a “clamshell”) release being replaced by an internal mechanism, (4) internal trim changes including the dashboard materials, the console and seats, (5) the replacement of the Moss gearbox with an all-synchromesh unit and (6) the 4.2 litre engine replacing the original 3.8.  Beyond those well-known landmarks, between 1965 and early 1967 there was also a wealth of barely detectable (except to experts of which there are quite a few) cosmetic changes and mechanical updates including: (1) the glass windshield washer bottle replaced with plastic container (March 1965), (2) the addition of an alternator shield (October 1965), (3) an enclosed brake and clutch pedal box (October 1965), (4) a hazard waring (4-way) flasher added to US market cars (November 1965), (5) sun-visors added to roadsters (February 1966), (6) instrument lighting changed from blue to green (March 1966), (7) the rubber boot at the base of the gear lever being replaced by a black Ambla gaiter; there were also detail changes to the gearbox cover and prop shift tunnel finisher (October 1966), (8) the material used for the under-dash panels was changed from Rexine-skinned aluminum to fiberboard (October 1966) and (8) a Girling clutch master cylinder replaced the Dunlop unit (December 1966).

Jaguar E-Type: S1 with covered headlight light (left), S1.25 with early "sugar scoop" (centre) and S2 with later "sugar scoop" (right). 

After the headlight covers were legislated to extinction, the replacement apparatus on the E-Types came to be called “sugar scoops”, a term earlier used for the Volkswagens & Porsches sold in North America US market which had to be fitted with sealed-beam headlights because of protectionist rules designed for the benefit of US manufacturers.  The use of “sugar scoop” for the E-Type was appropriate because the visual link with the original utensil (which, in technical terms, is a "specialized spoon") was much more obvious than the more subtle hint seen on Volkswagens & Porsches.

A US market 1977 Porsche 911 (1964-1989), fitted with the front bumper assembly of a later 911 (964 (1989-1994)):  The original “sugar scoops” are seen on the left and the replacement Hella H4 lights are to the right (in RoW cars both H2 & H4 units were fitted).  The sugar scoop (centre) is Japanese, circa 1970s.  Sugar scoops are used to scoop sugar from a “sugar scuttle” whereas if one’s sugar is in a “sugar bowl”, a “sugar spoon” is used.  The difference between a “sugar spoon” and a “tea spoon” is the former has a deeper and usually more rounded bowl and most are supplied as part of a “tea set” or “tea service”, often with the same decorative elements.

Despite that myriad of modifications, all E-Types up to those informally dubbed 1.25 are labelled S1 but the running changes can be of significance to restorers if the object is to emulate exactly the state in which a vehicle rolled off the production line; in events such as a concours d'elegance, judges can deduct points for even minor variations.  Things became more distinct when on 11 January 1967 the first E-Type destined for the US market was built without the covered headlights and this marked the beginning of the run of what would come to be known as the 1.25 although it wouldn’t be until June-July that year the open headlights became a universal fitting on all E-Types.  Between August-October 1967, the 1.5 began to evolve and that included the twin Zenith-Stromberg carburetors replacing the triple SUs, the substitution of ribbed camshaft covers, a higher mounting of the headlights (to meet minimum height requirements) and the adoption of rocker switches.  At this point, the teardrop tail lights remained, the most obvious external marker of the S2 being the chunky light below the rear bumper bar although, in the usual manner, updates continued, such as twin cooling fans (a good idea) and “leaper” badges on the flanks (pointless).  So it can be hard to follow without a flow chart but, because of some overlaps in the production process, the S1-to-S1.25-to-S1.5 transition wasn’t entirely lineal but none of this is mysterious because Jaguar’s Factory Service Bulletins (JFSB) have documented these “inconsistencies” (which were completely normal industrial practice).  For example, there were a certain 32 specific US market vehicles fitted with the headlight covers which were built with serial numbers later than the first of the open headlight cars.  Not all E-Types built for the US market in 1967 thus had the open headlights and a not insignificant number of those 1.25 spec vehicles have been retro-fitted with the covers.  Such is the appeal of the covered headlights that although the E-Type market is monitored by the originality police (the “matching numbers” crowd which have an extraordinary knowledge of things like “correct” hose clamps or screw heads), there seems to be much untypical forgiveness for “back-dating” headlights to the sleeker look and they're not unknown even on the later, and much different, S3 V12 cars.

The lure of the headlight covers: 1973 E-Type with headlight covers subsequently added (left) and with the original "sugar scoops" (left).  These are US market cars with the additional "dagmars" appended to the bumperettes.  Even by 1973, thin whitewall tyres were still a popular option on US Jaguars although the wide whitewalls often fitted in the early 1960s had fallen from favor. 

While the loss of the toggle switches, teardrop taillights and headlight covers was a cause of some lament, some other changes also induce pangs of regret.  The switch from three to two carburetors was necessitated by the emission control regulations; the claimed horsepower dropped from 265 to 246 and while not many took the original rating too seriously, there was a drop in performance, especially in the upper speed ranges.  One often less noticed change mandated by the DOT was the replacement of the “eared” knock-off hubs for the wire wheels (the E-Types only ever using a two-eared version although third-party items with three ears are available) with a more “pedestrian friendly” type which, bewilderingly, are now referred to as the “non-eared”, “curly”, “octagonal”, “smooth”, “federal” “safety” and “continental” knock offs.  Take your pick.  Buyers could also take their pick of whether their “improved” wire wheels (now incorporating a forged centre hub) were painted in matte silver or chromed although the JFSB did caution that because of the altered configuration of the spokes, the wheels were not interchangeable with the earlier type except as a complete set (ie five per car).  Available from 1 January 1968 (the effective date for many of DOT’s new rules), this was Jaguar’s last update of the wire wheels which, in a variety of forms, the company had been using since being founded in 1922 as the Swallow Sidecar Company.  Never offered on the biggest and heaviest of the post-war cars (the Mark VII, VIII, IX and X/420G) or the new XJ range, they were last used on the “overlap” Daimler saloons (250 & Sovereign) in 1969 although they remained an option for the E-Type until the last was built in 1974.  Although a handful of small-scale producers continued to offer wire wheels, their final appearance on the option lists of the UK industry’s volume models came in 1980 when the last MGB was built.

Norway’s Motorhistorisk Klubb Drammen (Historic Car Club of Drammen) from Buskerud county reported on an exhibition hosted on 2 July 2014 by the Norsk motorhistorisk museu (Norwegian Motor Historic Museum) in the village of Brund, the event honoring Lindsay Lohan’s birthday.  The S2 Jaguar E-Type was recently restored but it would require a detailed examination to determine the degree to which (note the triple carburetors) it remains in its original specification.  Given the location this may have been a RoW car but there’s a lively two-way trans-Atlantic trade in E-Types (many now restored in Poland) so it may originally have been sold in the US or Canada.

The “Shaguar” used in the three Austin Powers movies (1997, 1999 & 2002) was a 1967 S1.5 E-Type which thus featured the combination of teardrop taillights, "sugar scoop" headlights, rocker switches and twin Zenith-Stromberg carburetors.  Because it's right-hand drive (RHD), it was probably built for the home market.